Surface Water Supply 

of the United States 

1949

Part 9. Colorado River Basin

Prepared under the direction of C. G. PAULSEN, Chief Hydraulic Engineer 

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1149

Prepared in cooperation with the States 

of Arizona, Colorado, New Mexico, 

Utah, and If^yoming and other agencies

r - c,, , c PUBLIC PROPERTY and is not to

bo XVL ./ed from the official files. PRIVATE

POSSESSION IS UNLAWFUL (R* S. Sup. Vol. 2, pp. 380, 

Sec. 749}

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1951
UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

For sale by the Superintendent of Documents, U. S. Government Printing Office 

Washington 5, D. C. - Price $1.00 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation 

with the States of Arizona, Colorado, New Mexico, Utah, and 

Wyoming and other agencies, by personnel of the Water Resources 

Division under the direction of:

C. G. Paulsen______________ _____Chief Hydraulic Engineer 

J. V. B. Wells_________________Chief, Surface Water Branch 

B. J. Peterson_________________Chief, Annual Reports Section

District Engineers (Surface Water)

F. M. Bell_______________________________Denver, Colo. 

J. H. Gardiner____________________________Tucson, Ariz. 

Berkeley Johnson______________________Santa Fe, N. Mex. 

M. T. Wilson________________________Salt Lake City, Utah

in
CONTENTS

Page

Scope of work........................................................................ 1

Definition of terms .................................................................. 1

Explanation of data.................................................................. 2

Accuracy of field data and computed results.......................................... 5

Publications......................................................................... 6

Records of discharge collected by agencies other than the Geological Survey.......... 12

Cooperation.......................................................................... 12

Division of work..................................................................... 12

Gaging-station records ............................................................... 14

Colorado River Basin............................................................... 14

Colorado River main stem......................................................... 14

Colorado River near Grand Lake, Colo........................................... 14

Shadow Mountain Reservoir near Grand Lake, Colo................................ 15

Alva B. Adams tunnel of East Portal, near Estes Park, Colo..................... 16

Colorado River below Shadow Mountain Dam, Colo................................. 17

Colorado River near Granby, Colo............................................... L8

Colorado River at Hot Sulphur Springs, Colo.................................... 19

Colorado R iver near Dotsero, Colo.............................................. 20

Colorado River at Glenwood Springs, Colo....................................... 21

Colorado River near Cameo, Colo. ........'.. ................................... 22

Colorado River near Cisco, Utah................................................ 23

Colorado River at Kite, Utah................................................... 24

Colorado River at Lees Perry, Ariz............................................. 25

Transmountain diversions from Colorado River Basin above Lees Perry, Ariz...... 26

Colorado River near Grand Canyon, Ariz......................................... 28

Lake Mead at Hoover Dam, Ariz.-Nev............................................. 29

Colorado River below Hoover Dam, Ariz.-Nev..................................... 30

Colorado River below Davis Dam, Ariz.-Nev...................................... 31

Colorado River at Needles, Calif............................................... 32

Colorado River near Topock, Ariz.................... .......................... 33

Havasu Lake near Parker Dam, Ariz.-Calif....................................... 35

Colorado River below Parker Dam, Ariz.-Calif.'. ................................. 37

Diversions between Parker Dam and Imperial Dam................................. 38

Diversion for Colorado River Indian Reservation, near Parker, Ariz........... 38

Colorado River at Imperial Dam, Ariz.-Calif.................................... 38

Colorado River at Yuma, Ariz................................................... 39

Colorado River and Pilot Knob wasteway at Rockwood gate, Calif................. 41

Diversions and return flows at and below Imperial Dam............................ 42

Gila Gravity Main Canal at Imperial Dam, Ariz.-Calif........................... 42

All-American Canal near Imperial Dam, Ariz.-Calif.............................. 43

All-American Canal above Pilot Knob wasteway, Calif. ........................... 44

Yuma Main Canal at siphon-drop plant, near Yuma, Ariz. ......................... 45

Yuma Main Canal below Colorado River siphon, at Yuma, Ariz..................... 46

Yuma Main Canal wasteway at Yuma, Ariz. ......................................... 47

Pilot Knob wasteway near Pilot Knob, Calif........................... ......... 48

North Gila Valley Canal at Laguna Dam, Ariz.-Calif............................. 49

Alamo Canal at Andrade, Calif.................................................. 50

Return surface flows from Yuma project, Ariz.-Calif............................ 51

Tributaries above Gunnison River................................................. 53

North Inlet at Grand Lake, Colo................................................ 53

East Inlet near Grand Lake, Colo............................................... 54

Arapaho Creek at Monarch Lake Outlet, Colo..................................... 55

Willow Creek near Granby, Colo ................................................. 56

Fraser River rear Winter Park, Colo............................................ 57

Praser River at Granby, Colo................................................... 58

Vasquez Creek near Winter Park, Colo........................................... 59

St. Louis Creek near Fraser, Colo.............................................. 60

Ranch Creek near Fraser, Colo.................................................. 61

Ranch Creek near Tabernash, Colo............................................... 62

Meadow Creek near Tabernash, Colo.............................................. 63

Williams River near Leal, Colo................................................. 64

Williams River near Parshall, Colo............................................. 65

Williams Fork Reservoir near Parshall, Colo.................................... 66

Williams River below Williams Fork Reservoir, Colo............................. 67

Keyser Creek near Leal, Colo................................................... 68

Troublesome Creek near Troublesome, Colo....................................... 69

Blue River at Dillon, Colo..................................................... 70

Blue River above Green Mountain Reservoir, Colo. ............................... 71

Green Mountain Reservoir near Kremmling, Colo.................................. 72

Blue River below Green Mountain Reservoir, Colo................................ 73

Snake River at Dillon, Colo.................................................... 74

Tenmile Creek at Frisco, Colo.................................................. 75

Tenmile Creek at Dillon, Colo.................................................. 76

Straight Creek near Dillon, Colo............................................... 77

Willow Creek near Dillon, Colo................................................. 78

Rock Creek near Dillon, Colo................................................... 79

Boulder Creek near Dillon, Colo................................................ 80

Slate Creek near Dillon, Colo.................................................. 81
VI CONTENTS

Gaging-station records Continued. 

Colorado River Basin Continued.

Tributaries above Gunnison River Continued. Page

Black Creek below Black Lake, near Dillon, Colo................................ 82

Black Creek above Green Mountain Reservoir, Colo............................... 83

Otter Creek above Green Mountain Reservoir, Colo............................... 84

Cataract Creek above Green Mountain Reservoir, Colo............................ 85

Elliot Creek feeder canal to Green Mountain Reservoir, Colo. ................... 86

Piney River below Piney Lake, near Minturn, Colo............................... 87

Piney River near State Bridge, Colo............................................ 88

Eagle River at Redcliff, Colo.............................................. ... 89

Eagle River below Gypsum, Colo............ ... ., .......................... 90

Turkey Creek at Redcliff, Colo................................................. 91

Homestake Creek at Gold Park, Colo........................ ,k .................... 92

Homestake Creek near Redcliff, Colo............................................ 93

Gore Creek at upper station, near Minturn, Colo................................ 94

Gore Creek near Minturn, Colo......................................... ........ 95

Black Gore Creek near Minturn, Colo............................................ 96

Roaring Fork at Aspen, Colo.................................................... 97

Roaring Fork at Glenwood Springs, Colo......................................... 98

Pryingpan Creek at Norrie, Colo................................................ 99

North Fork Fryingpan Creek near Norrie, Colo................................... 100

Crystal River near Redstone, Colo...................................... ....... 101

Parachute Creek near Grand Valley, Colo........................................ 102

Parachute Creek at Grand Valley, Colo.......................................... 103

Plateau Creek near Collbran, Colo.............................................. 104

Plateau Creek near Cameo, Colo................................................. 105

Buzzard Creek near Collbran, Colo.............................................. 106

Big Creek at upper station, near Collbran, Colo................................ 107

Cottonwood Creek at upper station, near Molina, Colo........................... 108

Bull Creek at upper station, near Molina, Colo................................. 109

Mesa Creek near Mesa, Colo..................................................... 110

Gunnison River Basin............................................................. Ill

Taylor Park Reservoir at Taylor Park, Colo..................................... Ill

Taylor River below Taylor Park Reservoir, Colo................................. 112

Taylor River at Almont, Colo................................................... 113

Gunnison River near Gunnison, Colo............................................. 114

Gunnison River at lola, Colo................................................... 115

Gunnison River below Gunnison tunnel, Colo..................................... 116

Gunnison River near Grand Junction, Colo....................................... 117

East River near Crested Butte, Colo............................................ 118

East River at Almont, Colo..................................................... 119

Slate River near Crested Butte, Colo........................................... 120

Cement Creek near Crested Butte, Colo.......................................... 121

Ohio Creek near Baldwin, Colo.................................................. 122

Ohio Creek near Gunnison, Colo.................................................. 123

Castle Creek near Baldwin, Colo................................................ 124

Tomichi Creek at Sargents, Colo................................................ 125

Tomichi Creek near Doyleville, Colo............................................ 126

Tomichi Creek at Parlin, Colo.................................................. 127

Tomichi Creek at Gunnison, Colo................................................ 128

Quartz Creek near Ohio, Colo................................................... 129

Cebolla Creek near Lake City, Colo............................................. 130

Cebolla Creek at Powderhorn, Colo.............................................. 131

Sapinero Creek at Sapinero, Colo............................................... 132

Lake Fork at Gateview, Colo.................................................... 133

Curecanti Creek near Sapinero, Colo............................................ 134

Cimarron Creek below Squaw Creek, at Cimarron, Colo............................ 135

Crystal Creek near Maher, Colo................................................. 136

Smith Fork near Crawford, Colo................................................. 137

Iron Creek near Crawford, Colo........................................... ..... 138

East Muddy Creek near Bardine, Colo............................................ 139

North Pork Gunnison River near.Somerset, Colo.................. ............... 140

Leroux Creek near Cedaredge, Colo.............................................. 141

Currant Creek near Cedaredge, Colo............................................. 142

Surface Creek near Cedaredge, Colo............................................. 143

Surface Creek at Cedaredge, Colo................................................ 144

Surface Creek at Eckert, Colo.................................................. 145

Ward Creek below Kiser Creek, near Cedariijge. Colo............................. 146

Uncorapahgre River at Colona, Colo.............................................. 147

Uncompahgre River at Delta, Colo............................................... 148

Red Mountain Creek near Ironton, Colo.......................................... 149

East Fork Dallas Creek near Ridgway, Colo...................................... 150

Roubideau Creek at mouth, near Delta, Colo..................................... 151

Kahnah Creek near Whitewater, Colo............................................. 152

Dolores River Basin...............................................:.............. 153

Dolores River at Dolores, Colo................................................. 153

Dolores River near McPhee, Colo................................................ 154

Dolores River at Gateway, Colo................................................. 155

Twomile Creek near La Sal, Utah................................................ 156

West Paradox Creek near Paradox, Colo.......................................... 157

West Paradox Creek near Bedrock, Colo.......................................... 158

Buckeye Reservoir Outlet near Paradox, Colo.....'............................... 159

San Miguel River near Placerville, Colo. ....................................... 160

San Miguel River at Naturita, Colo................. '. ........................... 161

Fall Creek near Pall Creek, Colo............................................... 162

Beaver Creek near Norwood, Colo............. I.................................. 163

 Horsefly Creek near Sams, Colo................................................. 164

Cottonwood Creek near Nucla, Colo.............................................. 165
CONTENTS VII

Gaging-station records Continued. 

Colorado River Basin--Continued.

Dolores River Basin Continued. Page

Naturita Creek near Norwood, Colo.............................................. 166

Tabeguache Creek near Nucla, Colo.............................................. 167

Taylor Creek near Gateway, Colo................................................ 168

Roc Creek near Uranium, Colo................................................... 169

Deep Creek near Paradox, Colo.................................................. 170

Geyser Creek near Paradox, Colo................................................ 171

Green River Basin................................................................ 172

Green River at Warren Bridge, near Daniel, Wyo................................. 172

Green River near Fontenelle, Wyo............................................... 173

Green River near Linwood, Utah................................................. 174

Green River near Jensen, Utah.................................................. 175

Green River near Ouray, Utah................................................... 176

Green River at Green River, Utah............................................... 177

Beaver Creek near Daniel, Wyo .................................................. 178

Horse Creek near Daniel, Wyo................................................... 180

Cottonwood Creek near Daniel, Wyo.............................................. 181

New Fork River below New Fork Lake, near Cora, Wyo............................. 182

New Fork River near Boulder, Wyo............................................... 183

Pine Creek at Pinedale , Wyo .................................................... 184

Pole Creek below Little Half Moon Lake, near Pinedale, Wyo..................... 186

Fall Creek near Pinedale, Wyo.......... ..................................... 186

Boulder Creek below Boulder Lake, near Boulder, Wyo............................ 187

East Fork near Big Sandy, Wyo.................................................. 188

Silver Creek near Big Sandy, Wyo........................................... ... 189

North Piney Creek near Mason, Wyo.............................................. 190

Middle Piney Creek below South Fork, near Big Piney, Wyo....................... 191

Labarge Creek near Viola, Wyo.................................................. 192

Fontenelle Creek near Fontenelle, Wyo.......................................... 193

Big Sandy Creek at Leckie Ranch, near Big Sandy, Wyo........................... 194

Little Sandy Creek near Elkhorn, Wyo........................................... 195

Blacks Fork near Millburne, Wyo................................................ 196

Blacks Fork near Urie, Wyo..................................................... 197

Blacks Fork near Lyman, Wyo..................................................... 198

Blacks.Fork near Green River, Wyo.............................. ............... 199

East Fork of Smith Fork near Robertson, Wyo.................................... 200

Smith Fork at Mountainview, Wyo................................................ 201

West Fork of Smith Fork near Robertson, Wyo.................................... 202

Hams Fork near Frontier, Wyo................................................... 203

Hams Fork at Diamondville, Wyo................................................. 204

Henrys Fork near Lonetree, Wyo................................................. 205

Henrys Fork near Burntfork, Wyo................................................ 206

Henrys Fork at Linwood, Utah................................................... 207

Middle Fork Beaver Creek near Lonetree, Wyo.................................... 208

East Fork Beaver Creek near Lonetree, Wyo...................................... 209

West Fork Beaver Creek near Lonetree, Wyo...................................... 210

Burnt Fork near Burntfork, Wyo................................................. 211

Sheep Creek near Manila, Utah.................................................. 212

Sheep Creek at mouth, near Manila, Utah........................................ 213

Carter Creek near Manila, Utah................................................. 214

Carter Creek at mouth, near Manila, Utah....................................... 215

Red Lake Outlet near Manila, Utah.............................................. 216

Yampa River at Steamboat Springs, Colo......................................... 217

Yampa River near Maybell, Colo................................................. 218

Elk River at Clark, Colo....................................................... 219

Little Snake River near Dixon, Wyo............................................. 220

Little Snake River near Lily, Colo............................................. 221

Battle Creek near Slater, Colo................................................. 222

Slater Fork near Slater, Colo.................................................. 223

Savery Creek near Savery, Wyo...........'....,.................................. 224

Brush Creek above cave, near Vernal, Utah...................................... 225

Brush Creek near Vernal, Utah.................................................. 226

Brush Creek near Jensen, Utah.................................................. 227

Oaks Park Canal near Vernal, Utah.............................................. 228

Little Brush Creek near Vernal, Utah........................................... 229

Ashley Creek below Trout Creek, near Vernal, Utah.............................. 230

Ashley Creek near Vernal, Utah................................................. 231

Ashley Creek at Sign of the Maine, near Vernal, Utah........................... 232

Ashley Creek near Jensen, Utah................................................. 233

South Fork Ashley Creek near Vernal, Utah...................................... 234

Dry Fork above sinks, near Dry Fork, Utah...................................... 235

North Fork of Dry Fork near Dry Fork, Utah..................................... 236

East Fork of Dry Fork near Dry Fork, Utah...................................... 237

Duchesne River at Provo River Trail, near Hanna, Utah.......................... 238

Duchesne River near Hanna, Utah................................................ 239

Duchesne River near Tabiona, Utah.............................................. 240

Duchesne River at Duchesne, Utah............................................... 241

Duchesne River at Myton, Utah.................................................. 242

Duchesne River near Randlett, Utah............................................. 243

West Fork Duchesne River near Hanna, Utah...................................... 244

Wolf Creek above Rhodes Canyon, near Hanna, Utah............................... 245

Rock Creek near Mountain Home, Utah.............'............................... 246

Strawberry Reservoir near Soldier Springs, Utah................................ 247

Strawberry River near Soldier Springs, Utah.................................... 248

Strawberry River at Duchesne, Utah............................................. 249

Currant Creek below Red Lodge Hollow, near Fruitland, Utah.................... x 250

Currant Creek near Fruitland, Utah............................................. 251
VIII CONTENTS

Gaging-station records Continued. 

Colorado River Basin--Continued.

Green River Basin--Continued. Page

Water Hollow near Fruitland, Utah.............................................. 252

Lake Pork above Moon Lake, near Mountain Home, Utah...........................: 253

Moon Lake Reservoir near Mountain Home, Utah................................... 254

Lake Pork below Moon Lake, near Mountain Home, Utah............................ 255

Lake Pork near Upalco, Utah.................................................... 256

Brown Duck Creek near Mountain Home, Utah...................................... 257

Yellowstone Creek near Altonah, Utah........................................... 258

Uinta River above Clover Creek, near Neola, Utah............................... 259

Uinta River near Neola, Utah................................................... 260

Uinta River at Port Duchesne, Utah............................................. 261

Whiterocks River above Paradise Creek, near Whiterocks, Utah.................... 262

Whiterocks River near Whiterocks, Utah......................................... 263

Paradise Creek near Whiterocks, Utah........................................... 264

White River near Meeker, Colo.................................................. 265

White River near Watson, Utah.................................................. 266

Willow Creek near Ouray, Utah.................................................. 267

Minnie Maud Creek at Nutter Ranch, near Myton, Utah............................ 2 70

Price River above Scofield Reservoir, near Scofield, Utah...................... 272

Scofield Reservoir near Scofield, Utah......................................... 273

Price River near Scofield, Utah................................................ 274

Price River near Heiner, Utah.................................................. 275

Price River at Woodside, Utah.................................................. 276

Gooseberry Creek near Scofield, Utah........................................... 277

White River near Soldier Summit, Utah.......................................... 278

Huntington Creek near Huntington, Utah......................................... 279

San Rafael River near Castle Dale, Utah........................................ 280

San Rafael River near Green River, Utah........................................ 281

Boulger Creek near Pairview, Utah.............................................. 282

Cottonwood Creek near Orangeville, Utah. ....................................... 2813

Cottonwood Creek near Castle Dale, Utah........................................ 2814

Ferron Creek (upper station) near Ferron, Utah................................. 2815

Ferron Creek near Castle Dale, Utah. ........................................... 2817

Dirty Devil River Basin.......................................................... 2819

Fremont River near Bicknell, Utah.............................................. 2819

Escalante River Basin............................................................. 290

Escalante River near Escalante, Utah........................................... 290

San Juan River Basin............................................................. 291

San Juan.River near Pagosa Springs, Colo....................................... 291

San Juan River at Pagosa Springs, Colo......................................... 292

San Juan River 'at Rosa, N. Mex................................................. 293

San Juan River near Blanco, N. Mex............................................. 294

San Juan River at Parmington, N. Mex........................................... 295

San Juan River at Ship Rock, N. Mex............................................ 296

San Juan River near Bluff, Utah................................................ 297

West Pork San Juan River above Borns Lake, near Pagosa Springs, Colo........... 298

West Pork San Juan River near -Pagosa Springs, Colo............................. 299

Turkey Creek near Pagosa Springs, Colo......................................... 300

Rio Blanco near Pagosa Springs, Colo........................................... 301

Rito Blanco near Pagosa Springs, Colo.......................................... 302

Navajo River at Banded Peak Ranch, near Chromo, Colo........................... 3C3

Navajo River at Edith, Colo.................................................... 3C4

Little Navajo River at Chromo, Colo............................................ 305

Piedra River at Bridge ranger station, near Pagosa Springs, Colo............... 306

Piedra River near Piedra, Colo................................................. 307

Williams Creek near Bridge ranger station, near Pagosa Springs, Colo........... 308

Weminuche Creek near Bridge ranger station, near Pagosa Springs, Colo.......... 309

Los Pinos River below Snowslide Canyon, near Weminuche Pass, Colo.............. 310

Vallecito Reservoir near Bayfield, Colo........................................ 311

Los Pinos River near Bayfield, Colo............................................ 312

Los Pinos River at Ignacio, Colo............................................... 313

Animas River at Howardsville, Colo............................................. 314

Animas River above Tacoma, Colo................................................ 315

Animas River at Durango, Colo.................................................. 316

Animas River near Cedar Hill, N. Mex........................................... 317

Animas River at Farmington, N. Mex............................................. 318

Cement Creek near Silverton, Colo.............................................. 319

Mineral Creek near Silverton, Colo............................................. 320

Hermosa Creek near Hermosa, Colo............................................... 321

Lightner Creek near Durango, Colo.............................................. 322

Florida River near Durango, Colo............................................... 323

La Plata River at Hesperus, Colo............................................... 324

La Plata River at Colorado-New Mexico State line............................... 325

La Plata River near Farmington, N. Mex......................................... 326

Cherry Creek near Red Mesa, Colo............................................... 327

West Mancos River near Mancos, Coio............................................ 328

East Mancos River near Mancos, Colo............................................ 329

Middle Mancos River near Mancos, Colo.......................................... 330

Paria River Basin................................................................ 331

Paria River at Lees Ferry, Ariz................................................ 331

Little Coloradp River Basin...................................................... 332

Little Colorado River above Lyman Reservoir, near St. Johns, Ariz.............. 332

Lyman Reservoir near St. Johns, Ariz........................................... 333

Little Colorado River below Lyman Reservoir, near St. Johne, Ariz.............. 334

Little Colorado River above Zuni River, near Hunt, Ariz........................ 335

"Little Colorado River near Hunt, Ariz.......................................... 336

Little Colorado River at Woodruff, Ariz........................................ 337

Little Colorado River at Orand Falls, Ariz..................................... 338
CONTENTS IX

Gaging-station records Continued. 

Colorado River Basin Continued.

Little Colorado River Basin Continued. Page

Little Colorado River near Cameron, Ariz....................................... 339

Silver Creek near Shumway, Ariz................................................ 340

Silver Creek near Woodruff, Ariz............................................... 341

Show Low Creek at Show Low, Ariz............................................... 342

Puerco River near Adamana, Ariz................................................ 343

Chevelon Fork below Wildcat Canyon, near Winslow, Ariz......................... 344

Chevelon Fork near Winslow, Ariz............................................... 345

Clear Creek below Willow Creek, near Winslow, Ariz............................. 346

Clear Creek near Winslow, Ariz................................................. 347

Moenkopi Wash near Tuba, Ariz.................................................. 348

Bright Angel Creek Basin......................................................... 349

Bright Angel Creek near Grand Canyon, Ariz..................................... 349

Virgin River Basin............................................................... 350

Virgin River at Virgin, Utah................................................... 350

Virgin River at Littlefield, Ariz................................. ............ 351

North Fork Virgin River near Springdale, Utah.................................. 352

Santa Clara River near Central, Utah........................................... 353

Santa Clara River above Winsor Dam, near Santa Clara, Utah..................... 354

Muddy River near Overton, Nev.................................................. 355

Meadow Valley Wash near Panaca, Nev............................................ 356

Bill Williams River Basin........................................................ 357

Bill Williams River near Alamo, Ariz........................................... 357

Santa Maria River near Alamo, Ariz............................................. 358

Gila River Basin................................................................. 359

Gila River near Gila, N. Mex................................................... 359

Gila River near Cliff, N. Mex.................................................. 360

Gila River near Red Rock, N. Mex............................................... 361

Gila River below Blue Creek, near Virden, N. Mex..... .4......................... 362

Gila River at New Mexico-Arizona State line, near Virden, N. Mex............... 363

Diversions from Gila River in Duncan Valley, N. Mex.-Ariz...................... 364

Gila River near Clifton, Ariz.................................................. 365

Gila River near Solomonsville, Ariz............................................ 366

Diversions from Gila River in Safford Valley, Ariz............................. 368

Gila River at Safford, Ariz.................................................... 369

Gila River at Calva, Ariz...................................................... 370

San Carlos Reservoir at Coolidge Dam, Ariz..................................... 371

Gila River below Coolidge Dam, Ariz............................................ 372

Gila River at Winkelman, Ariz.................................................. 374

Gila River at Kelvin, Ariz..................................................... 375

Gila River at Ashurst-Hayden Dam, near Florence, Ariz.......................... 376

Oila River near Laveen, Ariz................................................... 377

Gila River below Gillespie Dam, Ariz........................................... 378

Gila River near Dome, Ariz..................................................... 379

Sunset Canal near Virden, N. Mex............................................... 380

Sunset Canal above New Mexico-Arizona State line, near Virden, N. Mex.......... 381

Sunset Canal wasteway near Virden, N. Mex...................................... 382

Moddle Canal near Virden, N. Mex........ ...................................... 383

Moddle Canal at New Mexico-Arizona State line, near Virden, N. Mex............. 384

Valley Canal near Virden, N. Mex............................................... 385

San Francisco River near Glenwood, N. Mex...................................... 386

San Francisco River at Clifton, Ariz........................................... 387

Eagle Creek near Double Circle Ranch, near Morenci, Ariz....................... 388

Eagle Creek above pumping plant, neap Morenci, Ariz............................ 389

Willow Creek diversion from Black River, near Morenci, Ariz.................... 390

Willow Creek near Point of Pines, near Morenci, Ariz........................... 391

Willow Creek near Double Circle Ranch, near Morenci, Ariz...................... 392

San Simon Creek near Solomonsville, Ariz.................................1..... 393

San Carlos River near Peridot, Ariz............................................ 394

San Pedro River at Charleston, Ariz............................................ 395

Santa Cruz River near Lochiel, Ariz............................................ 396

Santa Cruz River near Nogales, Ariz............................................ 397

Santa Cruz River at Tucson, Ariz............................................... 398

Santa Cruz River near Laveen, Ariz............................................. 399

Sonoita Creek near Patagonia, Ariz............................................. 400

Tucson Arroyo at Vine Avenue, Tucson, Ariz..................................... 401

Rillito Creek near Tucson, Ariz................................................ 402

Sabino Creek near Tucson, Ariz................................................. 403

Salt River near Chrysotile, Ariz............................................... 404

Salt River near Roosevelt, Ariz................................................ 405

Reservoir system on Salt River at and below Roosevelt Dam, Ariz................ 406

Salt River below Stewart Mountain Dam, Ariz.................................... 407

White River near McNary, Ariz.................................................. 408

Tonto Creek above Gun Creek, near Roosevelt, Ariz.............................. 409

Verde River below Tangle Creek, above Horseshoe Dam, Ariz...................... 410

Reservoir system on Verde River at and below Horseshoe Dam, Ariz............... 411

Verde River below Bartlett Dam, Ariz........................................... 412

Oak Creek near Cornville, Ariz................................................. 413

Agua Frla River near Mayer, Ariz............................................... 414

Agua Fria River at Lake Pleasant Dam, Ariz..................................... 415

Lake Pleasant at Lake Pleasant Dam, Ariz....................................... 416

Hassayampa River at Box dam site, near Wickenburg, Ariz........................ 417

Sulphur Spring Valley.............................................................. 418

Whitewater Draw Basin............................................................ 418

Whitewater Draw near Douglas, Ariz............................................. 418
X CONTENTS

PagB 

Miscellaneous discharge measurements................................................. 419

Index................................................................................ 423

ILLUSTRATION

Figures 1. Gaglng-station structures: A, Colorado River at Lees Ferry, -,'i^-;

B, Crystal River near RedsTone, Colo............................. -... 3

2. Gaging-stations in vicinity of Yuma, Ariz............................... 40
SURFACE WATER SUPPLY OP THE COLORADO RIVER BASIN, 1949

SCOPE OP WORK

This volume is one of a series of 14 reports presenting results of measurements of 

stage and flow made on streams, lakes, and reservoirs in the United States during the 

water year ending September 30, 1949. The work was begun in 1888 in connection with 

special studies relating to irrigation. Measurements of the flow of streams and of the 

stage and contents of lakes and reservoirs have been made at about 11,680 gaging stations 

in the 48 States and also at many in the Territories of Alaska and Hawaii. On September 

30, 1949, 6,240 gaging stations, including those in Hawaii and Alaska were being maintained by the Geological Survey and cooperating organizations. Miscellaneous discharge 

measurements were made during the water year at many other points.

In the execution of the work many State and private organizations have cooperated, 

either by furnishing data or by assisting in collecting data. -Cooperation of the first 

kind is acknowedged in connection with the description of each station affected; cooperation of the second kind is acknowledged, under the heading "Cooperation," in the introductory matter that precedes the gaging-station records in each volume. In the present 

volume, the section on cooperation of the second kind appears on page 12.

DEFINITION OP TERMS

The units in which stream-flow data are presented in this report and other terms used 

herein are defined as follows:

"Second-feet" is an abbreviation for "cubic1 feet per second." A second-foot is the 

rate of discharge of a stream whose channel is 1 square foot in cross-sectional area and 

whose average velocity is, 1 foot per second.

"Second-feet per square mile" is the average number of cubic feet of water flowing per 

second from each square mile of area drained, on the assumption that ths runoff is distributed uniformly both as regards time and area.

"Runoff in inches" is the depth to which an area would be covered if all the water 

draining from it in a given period were uniformly distributed on its surface. It is used 

for comparing runoff with rainfall, which is usually expressed in inches.

An "acre-foot" is the quantity of water required to cover an acre to the depth of 

1 foot and is equivalent to 43,560 cubic feet. The term is commonly used in connection 

with storage for irrigation.

"Seeond-foot-day" is the volume of water represented by a flow of 1 second-foot for 24 

hours. It is equivalent to 86,400 cubic feet, 1.983471 acre-feet, or 646,317 gallons and 

represents a runoff of 0.0372 inch from 1 square mile.

"Stage-discharge relation" is an abbreviation for the term "relation between gage height 

and discharge."

"Control" is a term usea to designate a feature downstream from the gage that determines the stage-discharge relation at the gage. This feature may be a natural section, 

a reach of the channel, or an artificial structure.

1
2 SURFACE WATER SUPPLY, 1949, PART 9

"Contents" is a term applied to the volume of water in a reservoir. Unless otherwise 

indicated, it is computed on the basis of a level pool and does not include bank storage.

EXPLANATION OP DATA

The base data collected at gaging stations consist of records of stage, measurements 

of discharge, and general information used to supplement the records of stage and discharge 

measurements in determining the daily flow. The records of stage are obtained either from 

direct readings on a nonrecording gage or from a water-stage recorder that gives a continuous record of the fluctuations. Measurements of discharge are made with a current 

meter by the general methods outlined in standard textbooks on the measurement of river 

discharge. Typical structures in ase at gaging stations are shown in figure 1.

Rating tables giving the discharge for any stage are prepared from the discharge measurements. The application of the daily mean gage height to those rating tables gives the 

daily mean discharge, from which the monthly and ths yearly mean discharge are computed. 

If the stage-discharge relation is subject to change because of frequent or continual . 

change in the physical features that form the control, the daily mean discharge is determined by the "shifting-control method," in which correction factors based on individual discharge measurements and notes by engineers and observers are used in applying the 

gage heights to the rating tables. At times the stage-discharge relation for a station 

may be temporarily changed by the presence of aquatic growth or debris on the control. 

For such times the daily mean discharge is computed by what is essentially the "shiftingcontrol" method, described above.

At some gaging stations the stage-discharge relation is affected by backwater from 

reservoirs, tributary streams, or other sources, which necessitates ths use of the "slope 

method," in which the slope or fall in a reach of the stream is a factor in the determination of discharge. Information requisite for determining the slope or fall is obtained 

by means of an auxiliary gage set at some distance fro.-n the base gage. At some stations 

the stage-discharge relation is affected by changing stage, and for them the rate of 

change of stage is used as a factor in the determination of discharge.

At most gaging stations in the northern part of the United States and at some in the 

mountainous regions of other parts the stage-discharge relation is affected by ice during 

the winter, which makes it impossible to compute the discharge in the usual manner. Discharge for periods of ice effect is computed on the basis of the gage-height record and 

O3casional winter discharge measurements, consideration being given to the available information on temoerature and precipitation, notes by gage observers and .engineers, and 

comparable records of discharge for stations in the same or nearby basins. For those 

stations at which the stage-discharge relation 3,s affected by ice, the days included in 

the periods of ice effect either are indicated in the table by symbols referring to a 

footnote that states this fact or are given in a general note following the table. The 

days on which discharge measurements were made during or between periods of ice effect, 

shortly before the first period, or shortly after the last period are similarly indicated 

by a footnote.

For most of the gaging stations on streams in the area covered by this report the data 

presented comprise a description of the station, a table showing the daily discharge of
EXPLANATION OP DATA

A. COLORADO RIVER AT LEES FERRY, AKIZ. 

Note landing tower.

B. Crystal River Near Redstone, Colo. 

FIGURE 1. GAGING-STATION STRUCTURES.
4 SURFACE WATER SUPPLY, 1949, PART 9

the stream, and a table of monthly and yearly discharge and runoff. Skeleton rating 

tables are published for all stations except those at which the daily discharge for the 

greater part of the year was determined by the shifting-control method, the slope method, 

or other special methods.

The description of the station gives the type of gage, location, drainage area, records 

available, average discharge, extremes of discharge, general remarks, and notations of revisions of previously published record. The location of the gaging station and the drainage area are obtained from the most accurate maps available.. Under "Average discharge" is 

given the average discharge for the number of years indicated. It is not given for stations having less than 10 complete years of record or for stations where changes in water 

development during the period of record cause the figure to have little significance. 

Under "Extremes" are given the maximum discharge and gage height; the minimum discharge if 

there is little or no regulation; the minimum daily discharge if there is extensive regulation (also the minimum discharge if useful); and, the minimum gage height (unless it is 

of no importance). Unless otherwise qualified, the maximum discharge corresponds to the 

crest stage, obtained by use of a water-stage recorder or a nonrecording gage read at the 

time of the crest. Information pertaining to the accuracy of the records and conditions 

which affect the natural flow at the gaging station is given under "Remarks."

For some stations previously published records have been found to be in error on the 

basis of data or information obtained subsequently. Revisions of such records are usually 

published along with the current records in one of the annual reports. In order to make 

it easier to find such revised records, a paragraph headed "Revisions (water years)" has 

been added to the station description of all stations for which revised records have been 

published. Listed therein are all the reports In which revisions appear, each followed by 

the water years for which figures are revised in that report. In listing the report 

number, W. means Water-Supply Paper. In listing the years, water years are indicated by 

only 1 year, for Instance, 1933 stands for the water year October 1, laSE, to September 30, 

1933. If there were no daily, monthly, or annual figures of discharge involved in the 

revision, that fact is brought out by notations after the year dates as follows: (M) means 

that only the instantaneous maximum discharge was revised; (m) that only the instantaneous 

minimum was revised; and (P) that only peak discharges were revised. If the drainage area 

has been revised, the report in which the revised figure was first published is given. It 

should be noted that for all stations for which second-feet per square mile and runoff in 

inches are published, a revision of the drainage area necessitates corresponding revision 

of all figures based on the drainage area. Revised figures of second-feet per square mile 

and runoff in inches resulting from a revision of the drainage area only are usually not 

published in the annual series of reports.

For. stations equipped with water-stage recorders, except those on streams subject to 

sudden or rapid fluctuation, the table gives the discharge corresponding to the daily mean 

gage height. For stations subject to such fluctuation the daily mean gage height may not 

indicate the true daily mean discharge, which must be obtained by averaging the discharge 

for parts of the day or by using the discharge integrator, an instrument for obtaining the 

daily mean discharge from a continuous gage-height graph and containing as an essentiil 

element a curve representing the stage-discharge relation at the station. For stations 

equipped with nonrecording gages, the table of daily discharge gives the discharge
ACCURACY OP FIELD DATA AND COMPUTED RESULTS 5

corresponding to either once-daily readings of the gage, the mean of twice-daily readings, 

or the mean gage .height determined from gage-height graphs based on gage readings. For 

periods of rapidly changing stage, the daily mean discharge is determined from gage-height 

graphs based on gage readings, the frequency of which is stated in the station description.

In the table of monthly discharge the column headed "Second-foot-days" gives the sum 

for each month of the figures given in the table of daily discharge. The column headed 

"Maximum" gives the maximum daily discharge, not the momentary discharge when the water 

surface was at crest stage. Likewise, in the column headed "Minimum" the quantity given 

is the minimum daily discharge. The column headed "Mean" gives the average flow in cubic 

feet per second during the month.

Peak discharges with the times of their occurrence are listed below the table of monthly 

discharge for most stations. All independent peaks above the selected base are given. The 

base discharge, which is given in parentheses, is selected so that an average of about 

three peaks a year will be presented. Peak discharges are not published for canals, 

ditches, drains, or for any stream for which the peaks are subject to substantial control 

by man.

For most gaging stations on lakes and reservoirs the data preserited comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs a table showing daily contents or stage is given. A skeleton table of capacity at 

given stages is usually given in the first report in which data for a station are published 

but is omitted from succeeding reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of stream-flow data depends primarily on (1) the permanency of the stagedischarge relation or, if the control is unstable, the frequency of discharge measurements 

and (2) the accuracy of observations of stage, measurements of flow, and interpretation of 

records.

The station description gives a statement in regard to the general accuracy of the records. "Excellent" indicates that, in general, the error in the daily records is believed 

to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and 

"poor," probably more than 15 percent. The records of monthly and yearly mean discharge 

and runoff are, in general, more accurate than the daily records.

Yield at some stations as indicated by monthly means may vary widely from natural yield, 

owing to diversion, consumption, regulation by storage, increase or decrease in evaporation 

due to artificial causes, or other factors. For such stations figures of "second-feet per 

square mile" and "runoff in inches" are not published unless storage or diversion records 

are included indicating the extent of the regulation or diversion or unless satisfactory 

adjustments can be made for changes in contents or reservoirs or for other changes incident 

to use and control. Evaporation from a reservoir is not included in the adjustments for 

changes in reaervoir contents, unless its inclusion is indicated. Even at those stations 

where adjustments are made, in some instanc.es large errors in computed yields may occur 

when relatively large negative adjustments are applied or when evaporation is large in 

comparison with the observed discharge. Figures of second-feet per square mile and runoff 

in inches are also omitted if the drainage area Includes large noncontributing areas or if 

the average annual rainfall over the drainage area is less than 20 inches.
6 SURFACE WATER SUPPLY, 1949, PART 9

Many gaging stations on streams in the irrigated areas of the United States are situated 

above most of the diversions from those streams, and therefore the discharge recorded does 

not show the water supply available for further development, as prior appropriations below 

the station must first be satisfied.

The table of monthly discharge presents in summary the distribution of the flow past the 

station. The table of daily discharge affords opportunity for more detailed studies of the 

variation in flow. As further observations in each succeeding year may be expected to 

throw new light on data previously published, it should be borne in mind that such data are 

subject to revision in succeeding water-supply papers.

PUBLICATIONS

The results of stream-flow measurements are now published annually in 14 parts, each 

part covering an area whose boundaries coincide with natural drainage features as indicated 

below:

Part 1. North Atlantic slope basins '(St. John River to York River).

2. South Atlantic slope and eastern Gulf of Mexico basins (James Ri^cr to Mississippi 

	River).

3. Ohio River Basin.

4. St. Lawrence River Basin.

5. Hudson Bay and upper Mississippi River Basins.

6. Missouri River Basin.

7. Lower Mississippi River Basin.

8. Western Gulf of Mexico basins.

9. Colorado River Basin.

10. The Great Basin.

11. Pacific slope basins in California.

12. Pacific slope basins in Washington and upper Columbia River Basin.

13. Snake River Basin.

14. Pacific slope basins in Oregon and lower Columbia River Basin.

Water-supply papers and other publications of the Geological Survey containing data on 

the water resources of the United States may be obtained or consulted as explained below.

1. Copies may be purchased at nominal cost from the Superintendent of Documents, Government Printing Office, Washington, D. C., who will, on application, furnish lists giving 

prices.

2. Sets of the reports may be consulted in the libraries of the principal cities in 

the United States.

3. Sets are available for consultation in the offices of the water resources division of 

the Geological Survey as follows:

East of the Mississippi River:

Albany, N. Y., 526 Federal Building.

Asheville, N. C., 220 Post Office Building.

Atlanta, Ga., 411 Grand Theater Building.

Augusta, Maine, 420 Statehouse.

Baton Rouge, La., 538 Florida Street.

Boston, Mass., S39 Post Office Building.

Champaign, 111., 605 South Neil Street.

Charleston, W. Va., 408 Union Building.

Charlottesville, Va., Cabell Hall, University of Virginia.

Chattanooga, Tenn., 442 Post Office Building.

College Park, Md., 106 Engineering Building, University of Maryland.

Columbia, S. C., 207 Creason Building.

Columbus, Ohio, 2590 West Hardin St., Ohio State University.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 311 West Washington Street.

Jackson, Miss., 208 Millsaps Building.

Knoxville, Term., 337 Post Office Building.

Louisville, Ky., 531 Federal Building.

Madison, Ms., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building.

Ocala, Fla., Building 211, Camp Roosevelt

Pittsburgh, Pa., 515 Plaza Building.

Raleigh, N. C., 908 Capitol Club Building.

St. Paul, Minn., 1427 New Post Office Building.

Trenton, N. J., 228 Federal Building.

Washington, D. C., General Services Administration Building.
PUBLICATIONS 7

West of the Mississippi River:

Austin, Tex., 302 West Fifteenth Street.

Bismarck, N. Dak., 7 Eltinge Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., 476 New Customhouse.

Fort Smith, Ark., 6 Post Office Building.

Helena, Mont., 408 Federal Building.

Honolulu, 'Hawaii, 225 Federal Building.

Idaho Falls, Idaho, 204 Federal Building.

Iowa City, Iowa, 508 Hydraulic Laboratory, University of Iowa.

Lincoln, Nebr., 510 Rudge-Guenzel Building.

Los Angeles, Calif., 429-F United States Post Office and Courthouse.

Oklahoma City, Okla., 203 Council Building.

Pierre, S. Dak., 207 Federal Building.

Portland, Oreg., 606 Post Office Building.

Rolla, Mo., 211 Ramsey Building.

St. Louis, Mo., 1004 New Federal Building.

Salt Lake City, Utah, 303 Federal Building.

San Francisco, Calif., 702 Appraisers Building.

Santa Fe, N. Mex., 204 United States Courthouse.

Tacoma, Wash., 207 Federal Building.

Topeka, Kans., 305 Federal Building.

Tucson, Ariz., 210 Post Office Building.

A list of Geological Survey publications may be obtained by applying to the Director, 

Geological Survey, Washington, D. C.

Prior to publication, records of discharge in provisional form for individual stations 

may usually be obtained from the district offices listed above.

Early records of the flow of streams in the United States are published in the reports 

listed below. In many of these reports records for years earlier than those indicated 

have been included for some streams.

Stream-flow data for the years 1884-1901, In reports of the Geological Survey 

(A » Annual Report; B » Bulletin; W » Water-Supply Paper)

Report

10th A, pt. 2

13th A, pt. 3

16th A, pt. 2

18th A, pt. 4

19th A, pt. 4 

W 27.........

20th A, pt. 4

W 35 to 39...

21st A, pt. 4

22d A, pt. 4.

W 65, 66.....

W 75.........

Character of data

Descriptive Information only.

....do.......................................................

Descriptive Information only.

monthly discharge .

Descriptions, measurements ratings, and monthly discharge...

of the Mississippi River and Missouri River and tributaries above Kansas River.

of the Mississippi River except Missouri River and tributaries above Kansas River. 

Descriptions, measurements, ratings, and monthly discharge.

the Mississippi River, and Missouri River and tributaries.

the Mississippi River, except Missouri River and tributaries .

Year

1884-92.

1895-96.

1897 '

1897.

1898

1 aoo

1901.

Papers on surface water supply containing records from 1899 to date, grouped by years 

and drainage basins, are listed by number on page 8. The data for any particular gaging 

station will, in general, be found in the reports covering the years during which the 

station was maintained. For example, the data for 1910 to 1920 for any station in the 

area covered by part 3 are published in Water-Supply Paper-s 283, 303, 323, 353, 403, 433, 

453, 473, and 503, which contain records for the Ohio River Basin for those years. 

939921 O- 51 - 2
Numbers of water-supply papers containing results of stream measurements, 

Xear

1899 a:.....,,..........

1903................. ...

1904.. ..................

1909. ...................

1910. ...................

1913

1914....................

1919-20.......... .......

1921. ...................

1922

1924

1925. ...................

1926. ...................

1927

1930....................

1931....................

1934

1935. ...................

1936. ...................

1940...... ..............

1941. ...................

1945. ...................

1946. ...................

1546....................

1949 ....................

1

35

47, h48 

65, 75 

82 

97

0165, plSS, qlSV 

0201, p202, q203 

241 

261

281 

301 

321 

351 

381

431 

451 

471 

501

521 

541 

561 

581 

601

641 

661 

681 

696

71i

726 

741 

756 

781

8O1 

821 

851 

871 

891

951 

971 

1001 

1031-

1051 

1081

1111 

1141

l>35, 36

48 

65, 75 

b82, 83 

b97, 98

q!67, 168 

q203, 204 

242 

262

282 

302 

322 

352 

382

402 

432 

452 

472 

502

522 

542 

562 

582 

602

642 

662 

682 

697

71Z 

727 

742 

757 

782

80Z 

822 

852 

872 

892

952 

972 

1002 

1032

1052 

1082 

1112 

1142

3

36 

48, 149 

65, 75 

83 

98

169 

205 

243 

263

283 

303 

323 

353 

383

4O3 

433 

453 

473 

503

523 

543 

563 

583 

603

643 

663 

683 

698

713 

728 

743 

758 

783

603 

823 

853 

873 

893

953 

973 

1003 

1033

1O53

1083 

1113 

1143

41 3T

49 

65, 75 

m82, 83 

97

170 

206 

244 

264

284 

304 

324 

354 

384

404 

434 

454 

474 

504

524 

544 

564 

584 

604

644 

664 

684 

699

714 

729 

744 

759 

784

8O4 

824 

854 

874 

694

954 

974 

1004 

1034

1O54 

1084 1114" 

1144

5 1- ' " '76-

k65, 66, 75 

k83, 85 

k98, 99. nlOO

171 

207 

245 

265

265 

305 

325 

355 

385

435 

455 

475 

505

525 

545 

565 

585 

605

625 

645 

665 

685 

700

715 

730 

745 

760 

785

8O5 

825 

855 

875 

895

925 

955 

975 

1005 

1035

1055 

1085 

1115 

1145

6

o36, 37

49, J50 

66, 75 

84 

99

172 

208 

246 

266

286 

306 

326 

356 

386

406 

436 

456 

476 

506

526 

546 

566 

586 

606

626 

646 

666 

686 

701

716 

731 

746 

761 

786

806 

826 

856 

876 

896

926 

956 

976 

1006 

1036

1056 

1086 

1116 

1146

7

37 

50 

k65, 66, 75 

k83, 84 

k98, 9

k!69, 17

k205, 209 

247 

267

287 

307 

327 

357 

387

4O7 

437 

457 

477 

507

527 

547 

567 

587 

607

627 

647 

667 

687 

702

717 

732 

747 

76

787

8O7 

827 

857 

877 

897

92

357 

97

1007 

103

1O5

108

111

114

a Rating tables and Index to WSP 35-39 e Mojave River only. J Loup, Platte, and 

contained In WSP 39. Monthly discharge f Kings and Kern Rivers and south Pacific slope. tributaries belo

for 1899 In 21st Annual Report, part 4. g Rating tables and Index to WSP 47-52 k Tributaries of Mi

contained In WSP 52. Monthly discharge m Lake Ontario and 

for 1900 In 22d Annual Report, part 4. Lawrence River p

h schuylklll River to James River. n Hudson Bay only.

1 scloto River. o New England river

b James River only, 

c Qallatln River, 

d Green and Ounnlson Rivers and Colorado 

River above Ounnlson River.
PUBLICATIONS

The records at most of the stations discussed in these reports extend over a series of 

years. Miscellaneous measurements at many points other than regular gaging stations have 

been made each year and are published under "Miscellaneous discharge measurements" at the 

end of each report, the streams and points of measurement listed appearing in the same 

relative order as the streams and gaging stations in the body of the report. An index of 

the records obtained prior to 1904 has been published in Water-Supply Paper 119.

Each of the reports on surface water supply for the year 1939, issued as Water-Supply 

Papers 871 to 884 (see table on p. 8), contains, for the area covered by that report, a 

summary of yearly discharge at gaging stations at which 10 or more complete years of record 

have been collected. These summaries are available also as separate reprints.

Reports have been published that are compilations of records for various areas, usually 

a single State or drainage basin. These reports contain records previously published 

(some of which have been revised), as well as some records not contained in the annual 

series of water-supply papery. The following table gives the numbers ar.d titles of these 

reports, arranged alphabetically, some by States and some by drainage basins.

Reports containing compilations of records of discharge by States and drainage basins

Report

STATE 

Alabama, Water powers of, with an appendix on stream measurements In 

Mississippi. 

California, Water resources of, part 1, Stream measurements In Sacramento River Basin. 

California, Water resources of, part 2, Stream measurements In San 

Joaquln River Basin. 

California, Water resources of, part 3, Stream measurements In the Great 

Basin and Pacific Coast river basins.

California, southern, Surface water supply of Pacific slope basins In.... 

California, Surface water supply of minor San Francisco Bay, northern 

Pacific, and Great basins In.

Massachusetts, Hydrology of, Part 1, Summary of stream-flow and precipitation records.

DRAINAOE BASIH

Colorado River (Arlz., Colo., N. Hex., Utah, Wyo.) and its utilization... 

Colorado River, upper (Colo., Utah), and its utilization................. 

Colorado River Basin (Arlz., Calif., Colo., Utah, Wyo.), Surface waters 

at base stations In. 

Colorado River Basin (Arlz., Calif., Nev., H. Hex., Utah), Surfaca waters 

at stations on tributaries In lower.

New-Kanawha River Basin (H. C., Va., W. Va.), Surface water supply of....

Potomac River Basin (D. C., Md., W. Va.)-. ................................ 

Rio Grande Basin (Colo., N. Hex., Tex.). Water resources of ..............

St. Mary River. ' See St. Mary and Milk Rivers; Missouri and St. Mary 

River Basin. 

Sevier Lake Basin (Utah), Utilization of surface water resources of......

Period

1895-1903 

1887-1912 

1878-1912 

1891-1912 

i fton 1 on ft

1894-1927 

1895-1927

1863-1945

1878-1919

1888-1914 

1897-1927 

1891-1938

1888-1938

1890-1906

1 ooi 1 Q'x a

1895-1920

1895-1906 

1888-1913

1889-1937 

1890-1904

Water-Supply 

Paper

107 

298 

299 

300

636-E 

637-A

1105

492

395 

617 

918

1049

198

536

192

358

920 

109

Records of discharge have been published also in State reports. Some of these are 

not contained in the publications of the Geological Survey or are revisions of records 

previously published in its water-supply papers. The following table contains a list of 

these reports.
10 SURFACE WATER SUPPLY, 1949, PART 9 

State reports containing compilations of records of discharge

State

Do. ........

Do... ...... 

Colorado. .....

Connecticut . . . 

Do.........

Illinois ......

Kansas. .......

Do .........

Louisiana.. . ..

Minnesota.. .. .

Mississippi. . .

Do .........

Nebraska. .....

New Hampshire, 

flew Jersey. . . .

New Mexico.. . . 

Worth Carolina

North Dakota . .

Do ......... 

Do.........

Period

1895-1915

1904-47

903-48

1881-1935 

1881-1938

1900-1927

191Z-33 

1898-1946 

1895-1906 

1907-19 

1908-11 

1900-1934 

1923-27 

1927-30 

1873-1932 

1873-1940

1941-42 

1895-1919

1924-28 

1928-35

1910-20 

1903-38

1887-1920 

1929-37

1892-1943

1931-48 

1909-12

1900-1948 

1857-1926

1927-39

1889-1911 

1881-1938

1894-1914

1914-28 

1889-1922 

1892-1928

1928-34 

1934-40

1888-1925 

1889-1923

1889-1936

1866-1945 

1820-1945

1866-1945 

1872-1945 

1857-1945 

1919-21

1882-1938 

1882-1944

1898-1921

1898-1944 

1902-39

1898-1939 

1878-1914 

1914-24 

1924-30

Report

Special Report 20,. Water Resources and Hydrology of southeastern Alabama.

Surface Water Resources of Arkansas. .......

Water resources of Colorado, Appendix 2, 

Data on stream-gaging stations of 

Colorado. 1 

Water resources of Colorado, Appendix 3, 

vols. 1 and 2, Stream-flow data of 

Colorado. 

Bull. 44, Water resources of Connecticut...

5th biennial report ........................

3ull. 16, Water powers of Georgia. .........

?ub. 72, Surface water supply of Indiana... 

?ub. 112, Surface water supply of Indiana..

Water-Supply Bull. 1, Summaries of yearly 

and flood flow relating to Iowa streams . . 

Water-Supply Bull. 2, Surface water 

resources of Iowa. 

Surface waters of Kansas ...................

Report of Division of Water Resources......

Surface waters of Kentucky. ................

Oeol. Bull. 16, Surface water supply of 

Louisiana.

Flow data and draft storage curves for 

major streams in Maryland. 

Bull. 1, Summary of records of surface 

waters of Maryland and the Potomac 

River Basin. 

Bull. 5, Anne Arundel County Water Resources 

Water-resources Investigation of Minnesota. 

Bull. 68, Surface Waters of Mississippi.... 

Vol. 20, 2d series, Water resources of 

Missouri. 

Vol. 26, 2d series, Surface waters of 

MissourJ. .

Special Rept. 10, vols. 1-4, Water resources of Montana . 

1st hydrographic report ............. 

2d hydrographic report ..................... 

Annual and statistical report, vol. 12..... 

Bull. 33, Surface water supply of New 

Jersey. 

Special Rept. 5, Surface water supply of 

New Jersey. 

Special Rept. 9, Surface water supply of 

New Jersey. 

Surface water supply of New Mexico ......... 

Bull. 34, Discharge records of North 

Carolina streams. 

Bull. 39, Discharge records of North 

Carolina streams. 2 

Hydrologlc Data on the Neuse River Basin. 

Hydrologlc Data on the Cape Pear River 

Basin. 

Hydrologlc Data on the Yadkln-Pee Dee River 

Basin. 

Hydrologic Data on the Catawba and Broad 

River Basins. 

Hydraulic Data on The French Broad River 

Basin. 

Report to Governor of North Dakota on 

flood control.

Bull. 200, Compilation of stream-flow 

records of Ohio.

Bull. Ill, Ohio stream-drainage areas and 

flow-duration tables. 

Bull. 4, Water resources of the State of 

Oregon . 

Bull. 7, Water resources of the State of 

Oregon. 

Bull. 8, Water resources of the State of 

Oregon .

Issued by

Geological Survey of Alabama.

Do

Arkansas Geological Survey.

Arkansas Resources and Development Commission; 

University of Arkansas, 

Institute of Science and 

Technology. 

State Planning Commission, 

Water Conservation Board, 

State engineer. 

Do.

State Geological and Natural 

History Survey. 

State Water Commission, 

'lorida Geological Survey. 

Geological Survey of Georgia. 

Do. 

iivers and Lakes Commission. 

)ivision of Waterways, 

department of Conservation. 

Do. 

State Planning Board. 

Iowa Geological Survey.

Do.

Kansas Water Commission. 

Do. 

State Board of Agriculture. 

Do. 

Do. 

Kentucky Geological Survey. 

Department of Conservation.

Maine Water Power Commission. 

State Planning Commission and 

Water Resources Commission. 

Department of Geology, Mines, 

and Water Resources.

Do. 

State Drainage Commission.

Mississippi Geological Survey. 

Missouri Bureau of Geology 

and Mines. 

Missouri Geological Survey 

and Water Resources. 

Office of the State Engineer. 

Montana Agricultural Experiment Station. 

Bureau of Water Power, Irrigation, and Drainage. 

Do. 

Public Service Commission. 

Department of Conservation 

and Development. 

State Water Policy Commission.

Do.

Office of the State Engineer. 

Department of Conservation 

and Development.

Do. 

Do. 

Do.

Do. 

Do. 

Do. 

State chief engineer.

State Planning Board. 

State Water Conservation 

Commission. 

Engineering Experiment Station, 

Ohio State University. 

Do. 

Department of Agriculture, 

Division of Conservation 

and Natural Resources. 

Engineering Experiment Station, 

Ohio State University. 

Office of the State Engineer.

Do. 

Do.

1 Contains records of yearly discharge only.

2 Contains records of maximum and minimum daily, weekly, and monthly discharge and yearly mean 

discharge.
PUBLICATIONS 

State reports containing compilations of records of discharge Continued

11

State

Oregon ........ 

Do. .... ... 

Pennsylvania . .

South Carolina

Tennessee. .... 

Do .........

Virginia......

Washington. . . . 

Wisconsin. ....

Period

1930-36 

1936-41 

1890-1911

1884-1946

1874-1924 

1920-30

1895-1927

1927-42

1878-1933 

1888-1914

Report

Bull. 9, Water resources of the State of 

Oregon. 

Bull. 10, Water resources of the State of 

Oregon . 

Report of the Water Supply Commission of 

Pennsylvania .

Bull. 17, Summary of, records of surface 

water supply of South Carolina.

Bull. 34, Water resources of Tennessee 3 .... 

Bull. 40, Surface waters of Tennessee......

Bull. 31, Water resources of Virginia ......

(Potomac, Rappahannock, and York River 

Basins) .

(James River Basin). 

Bull. 6. Surface water supply of Virginia

(Roanoke and Chowan River Basins). 

Bull. 7, Surface water supply of Virginia

(New, Tennessee, and Big Sandy River 

Basins) . 

Bull. 5, Monthly and yearly summaries of 

hydroraetrie data . 

1st report of Railroad Commission of Wisconsin to Legislature on water powers. 

Zd report of Railroad Commission of Wisconsin to Legislature on water powers.

Issued by

Office of the State Engineer. 

Do.

Water Supply Commission of 

Pennsylvania . 

Department of Forests and

Waters .

South Carolina Research, 

Planning and Development 

Board . 

Department of Education. 

Do. 

Office of the State Engineer.

Do.

Virginia Geological Survey. 

Virginia Conservation Commission. 

Do.

Do.

Do.

Department of Conservation 

and Development. 

Railroad Commission of Wisconsin. 

Do.

3 Includes records of discharge for all stations In Morth Carolina in the Tennessee River Basin.

Note.- In addition to the records contained In the reports listed above, <-he following States 

have Issued annual or biennial reports in which are contained records of dlscnarge: California, 

Colorado, Connecticut, Idaho, Indiana, Kansas, Maine, Missouri, Montana, Nebraska, Nevada, New 

lexlco, New York (also New York City Board of Water Supply and city of Rochester), North Dakota, 

Oregon, Pennsylvania, Rhode Island, Washington, and Wyoming.

The reports listed in the foregoing tables contain the customary records of discharge 

collected during the systematic operation of gaging stations. Detailed information on 

the stage and discharge of many streams during major floods has been included in special 

reports on these floods published by the Geological Survey. The more recent of these 

special reports also contain other pertinent hydrologic information and analyses and compilations of data relating to earlier noteworthy floods. The following list gives the numbers and titles of these reports:

Water-Supply Tltle 

Paper

88 The Passaic flood of 1902.

92 The Passaic flood of 1903.

96 Destructive floods in the United States in 1903.

147 Destructive floods in the United States in 1904.

162 Destructive floods in the United States in 1905.

334 The Ohio Valley flood of March-April 1913.

426 Southern California floods of January 1916.

487 The Arkansas River flood of June 3-5, 1921.

488 The floods in central Texas in September 1921'.

520-G Some floods in the Rocky Mountain region.

636-C The New England flood of November 1927.

771 Floods in the United States, magnitude and frequency.

773-E The New York State flood of July 1935.

796-B Flood on Republican and Kansas Rivers, May and June 1935.

796-C Flood in La Canada Valley, Calif., January 1, 1934.

796-G Major Texas floods of 1935.

798 The floods of March 1936, part 1,

799 The floods of March 1936, part 2,

800 The floods of March 1936, part 3,

816 Major Texas- floods of 1936.

836-A Stages and flood discharges of the Connecticut River at Hartford, Conn.

838 Floods of Ohio and Mississippi Rivers, January-February, 1937.

842 Floods in Canadian and Pecos River Basins of New Mexico, May and June 193/.

843 Floods of December 1937 in northern California.

844 Floods of March 1938 in southern California.

847 Maximum discharges at stream-measurement stations through September 1938.

867 Hurricane floods of September 1938.

869 Flood of August 1935 in Muskingum River Basin, Ohio.

914 Texas floods of 1938 and 1939.

966 Minor floods of 1938 in North Atlantic States.

967-A Floods of September 1939 in Colorado River Basin below Boulder (Hoover) Dam.

967-B Flood of July 5, 1939, in eastern Kentucky.

967-C Flood of August 21, 1939, in town of Baldwin, Maine.

994 Cloudburst floods in Utah, 1850 to 1938.

997 Floods in Colorado.

1046 Texas floods of 1940. 1066 Floods of August 1940 in the southeastern States.

1080 Floods of May-June 1948 in Columbia River Basin.

New England rivers.

Hudson River to Susquehanna River region.

Potomac, James, and upper Ohio Rivers.
12 SURFACE WATER SUPPLY, 1949, PART 9

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The Western Colorado Power Co. continued, during the water year October 1948 to September 1949, to collect records of daily discharge for Cascade Creek near Tacoma, Colo., 

which now cover the years 1915-49. The records for the years 1934-40 are published in 

the surface water-supply papers of the Geological Survey covering the Colorado River Basin 

for those years, and the records for the entire period are on file at the Office of the 

State Engineer of Colorado.

COOPERATION

The work in the several States was done under cooperative agreements with the organizations listed below:

Arizona: State Land Department, 0. C. Williams, commissioner; Salt River Valley 

Water Users' Association; Metropolitan Water District of Southern California (for 

certain stations on Colorado River at and in vicinity of Parker Dam); San Carlos 

Irrigation and Drainage District; Maricopa County Municipal Water Conservation 

District No. 1; Gila Valley Irrigation District; and city of Tucson. 

California: Imperial Irrigation District.

Colorado: Office of the State Engineer, M. C» Hinderlider, and the State 

Water Conservation Board, C. H. Stone, director.

New Mexico: Office of the State Engineer, J. H. Bliss; New Mexico Interstate 

Stream Commission, J. H. Bliss, secretary; State Highway Department, B. G. Dwyre, 

State Highway Engineer.

Nevada: Office of the State Engineer, A. M. Smith.

Utah: Office of the State Engineer, E. H. Watson; succeeded by H. A. Linke; 

and Utah Water and Power Board, W. R. Wallace, chairman.

Wyoming: Office of the State Engineer, L. C. Bishop, and the State Planning 

and Water Conservation Board, Gov. L. C. Hunt, president.

Financial assistance was furnished by the Corps of Engineers for the operation of six 

gaging stations in Arizona.

Financial assistance was also furnished by the Bureau of Reclamation, United States 

Department of the Interior.

Assistance in collecting the records was rendered by the following organizations: 

Colorado: Denver Board of Water Commissioners, Bureau of Reclamation of the 

United States Department of the Interior, and Uncompahgre Valley Water Users' 

Association.

Utah: National Park Service and Bureau of Reclamation, both of the United States 

Department of the Interior, Moon Lake Water Users' Association, and Utah Power & 

Light Co.

Wyoming: Bureau of Reclamation of the United States Department of the Interior.

DIVISION OF WORK

The stream-gaging work was conducted by the water resources division of the Geological 

Survey,'Carl G. Paulsen, chief hydraulic engineer, and Joseph V. B. Wells, chief of the 

surface water branch. The data for the stations in the several States were collected and 

prepared for publication under the supervision of district engineers as follows: In
DIVISION 'OP WORK 13

Arizona, in California, and for Gila River below Blue Creek, near Virden, N. Mex., J. H. 

Gardiner; in Colorado (except for Los Pinos River at Ignacio) P. M. Bell, the work being 

done in collaboration with M. C. Hinderlider, State engineer, and L. T. Burgess, State 

chief hydrographer; in New Mexico (except for Gila River below Blue Creek, near Virden) 

and for Los Pinos River at Ignacio, Colo., Berkeley Johnson; in Utah (except for Green 

River near Linwood, Sheep Creek near Manila, Twomile Creek near La Sal, and White River 

near Watson), and for Nevada, M. T Wilson; in Wyoming and for Green River near Linwood, 

Utah, Sheep Creek near Manila, Utah, Twomile Creek near La Sal, Utah, and White River near 

Watson, Utah, P. M. Bell.

The records were reviewed and the manuscript prepared for publication under the direction of B. J. Peterson, chief, annual reports section.
14 GAGING-STATION RECORDS 

COLORADO RIVER MAIN STEM

Colorado River near Grand Lake, Colo.

Location.- Water-stage recorder, lat. 40°14', long. 105"51', In sec. 13, T. 3 N., R. 76 

W., 200 feet downstream from bridge on U. S. Highway 34, a quarter of a mile upstream 

from high-water line of Shadow Mountain Reservoir, and 3 miles southwest of town of 

Grand Lake.

Drainage area.- 103 square miles.

Hecords available.- July 1904 to September 1909, September 1910 to September 1918, May 

1934 to September 1949.

Average discharge.- 28 years, 108 second-feet.

.Extremes.- Maximum discharge during year, 956 second-feet June 21 (gage height, 6.08 feet); 

minimum daily, 15 second-feet Jan. 29.

1904-9, 1910-18, 1934-49: Maximum discharge observed, 1,840 second-feet June 15, 16, 

1918 (gage height, 7.0 feet); minimum, 1.6 second-feet July 17, 1934 (gage height, 1.32 

feet, site and datum then In use).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnich are fair. Diversions above station for irrigation. Transmountain diversion by 

Grand River ditch through La Poudre Pass to Cache la Poudre Rjver Basin (see p. 26).

Revisions.- W 1039: Drainage area.

Rating table, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Dec. 4 to Apr. 15, Sept. 12-30)

3.3

3.4

3.5 27

3.6 

3.8 

4.0 92

4.4 170

4.7 250

5.0 345

5.4 525

5.9 830

6.1 970

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

z

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

21 

19 

16 

16 

16

21 

20 

19 

22 

23

22 

21 

20 

19 

19

21 

22 

18 

19 

21

21 

19 

18 

18 

17

17 

17 

17 

18 

18 

18

Nov.

17 

18 

19 

21 

23

b24 

b21 

b!9 

b20 

*21

21 

21 

21 

22 

21

20 

20 

b20 

b!9 

b!9

19

20 

18 

18 

18

19 

b!8 

b!7 

b!7 

b!8

Dec.

b!7 

b!8 

b!7 

17 

17

18 

18 

18 

*21 

19

18 

18 

18 

18 

19

20 

19 

19 

19 

19

18 

17 

17 

17 

b!8

b!8 

b!9 

21 

20 

b20 

b20

Jan.

21 

21 

22 

21 

18

18 

20 

20 

20

19

20 

18 

*18 

18 

18

b!7 

b!6 

17 

19 

18

18 

17 

17 

17 

18

17 

17 

17 

b!5 

b!7 

21

Feb.

20 

20 

20 

20

20

20 

20 

20 

21 

20

20 

*20 

19 

19 

19

18 

18 

19 

19 

19

19 

19 

18 

18 

18

18 

18 

18

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

19 

17 

16 

16 

16

17 

17 

17 

18

18

18 

18 

18 

17 

16

17 

17 *17 

16 

16

17 

16 

17 

16 

16

17 

16 

17 

17 

16 

17

Apr.

16 

17 

18 

18 

18

17 

18 

18 

18

20

21 

22 

23 

25 

31

32 

34 

42 

48 

48

51

61 

86 

124 

150

160 

166 

190 

229 

220

Secondfoot-days

593 

589 

572

20,076.6

570 

537 

523 

1,941 

7,818 

15,767 

4,165 

1,134 

646

34,855

May

170 

170 

229 

244 

238

190 

166 

166 

156 

175

192 

274 

307 

286 

304

361 

314 

268 

244 

235

223 

202 

180 

185 

205

262 

324 

357 

381 

412 

398

Maximum

23 

24 

21

538

22 

21 

19 

229 

412 

921 

301 

68 

36

921

June

345 

304 

259 

235 

259

307 

317 

277 

286 

328

394 

439 

495 

622

664

664 

739 

914 

865 

907

921 

886 

817 

784

706

569 

457 

369 

331 

307

July

286 

247 

215 

218 

229

250 

301 

256 

200 

185

175 

152 

134 

110 

101

90 

82 

78 

82

86

86 

70 

62 

72 

82

67 

58 

53 

49 

46 

43

Minimum

16 

17 

17

2.7

15 

18 

16 

16 

156 

235 

43 

18 

17

15

Aug.

48 

51 

51 

47 

44

48 

44 

44 

58 

54

48 

44

43 

40 

38

35 

33 

33 

31

30

27 

. 25 

25 

25

26

25 

25 

24 

21 

19 

18

Mean

19.1 

19.6 

18.5

54.9

18.4 

19.2 

16.9 

64.7 

252 

526 

134 

36.6 

21.5

95.5

Sept.

18 

18 

19 

28 

25

21 

18 

17 

17 

21

28 

36 

29 

25 

22

20 

18 

17 

18

17

17 

21 

21 

21 

21

21 

22 

22 

22 

26

Runoff In 

acre-feet

1,180 

1,170 

1,130

39,820

1,130 

1,070 

1,040 

3,850 

15,510 

31,270 

8,260 

2,250 

1,280

69,140

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Feb. 13 to Mar. 17 (stage-discharge relation may have been affected by 

ice during part of period); discharge computed on basis of weather records.
COLORADO RIVER MAIN STEM 15

Shadow Mountain Reservoir near Grand Lake, Colo.

Location.- Staff gage, lat. 40°13', long. 10S°50>, In SW^NW^ sec. 19, T. 3 N., R. 75 W., or 

 upstream face of Shadow Mountain Dam on Colorado River, about a quarter of a mile upstream from Pole Creek and 3j miles south of town of Grand Lake. Datum of gage is 

mean sea level (Bureau of Reclamation bench mark).

Records available.- April 1947 to September 1949.

Extremes.- Maximum contents computed during year, 17,330 acre-feet July 21; minimum computed, 3,800 acre-feet Oct. 1.

1947-49: Maximum contents computed, that of July 21, 1949; minimum computed, 2,630 

acrs-feet (revised) May 14, 1948; no storage prior to April 1947.

Revisions.- Extremes published in Water-Supply Paper 1119 have been revised as 

follows:

1947: Maximum contents computed during period April to September, 17,070 acre-feet 

Aug. 1; no storage prior to April.

1947-48: Maximum contents computed during water year, 16,440 acre-feet Oct. 16; 

minimum computed, 2,630 acre-feet May 14.

Remarks.- Reservoir is formed by earth and rock-fill dam and dikes. Storage began in 

April 1947 while the dam was under construction. Capacity of reservoir, 17,860 acrefeet (including usable capacity of Grand Lake above elevation 8,36fa feet), between 

elevations 8,347 feet (sill of outlet gate), and 8,367 feet (crest of spillway). Dead 

storage in Shadow Mountain Reservoir, 506 acre-feet. Dead storage in Grand Lake not 

determined. Reservoir is used for stabilization of water level in Grand Lake, to which 

It Is connected by canal. Transmountain diversion of Colorado River water, and water 

to be pumped from Granby Reservoir, is effected through Grand Lake and Alva B. Adams 

tunnel for power and irrigation in Big Thompson River Basin. Figures given herein 

are combined figures of usable contents for Shadow Mountain Reservoir and Grand Lake.

Cooperation.- Records furnished by Bureau of Reclamation.

Revisions,- Figures of contents and change in contents for some months prior to October 

ia4« given herewith supersede those published in Water-Supply Paper 1119.

Monthly contents, 1947-49

Date

July 31, 1947. .......................

Sept. 30. .............................

The period April to September 1947-

Oct. 31, 1947..................... .. .

Water year 1947-48. ................

Oct. 31..............................

Nov. 30... ...........................

Dec . 31 ..............................

Calendar year 1948. ................

Feb. 28..... .........................

Apr. 30......................... .....

May 31. .............................

Sept . 30 ..............................

Water year 1948-49. ................

Contents 

(acre-feet)

16,070

-

3,540

4,530

_

13,980

Change In contents 

during month 

(acre-feet)

+220

+16,070

-12,530

-12., 300

-410

+1,140

-180

-2,510

+10,210
16 COLORADO RIVER MAIN STEM

Alva B. Adams tunnel at East Portal, near Estes Park, Colo.

Location.- Water-stage recorder and Parshall flume, lat. 40°20', long. 105°35', In W| 

sec. 9, T. 4 N., R. 73 W., at East Portal and 4f miles southwest of Estes Park.

Records available.- August 1947 to September 1949.

Extremes.- Maximum daily discharge during year, 185 second-feet May 5; no flow at times. 

T917-49: Maximum daily discharge, that of May 5, 1949; no flow at times.

Remarks.- Records excellent except those for periods of no gage-height record, which 

are fair. This is a transmountain diversion from Grand Lake and Shadow Mountain 

Reservoir for power and irrigation development in Big Thompson River Basin. Diversion 

point is at West Portal near Grand Lake, 13.07 miles west of East Portal.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

1.0 

2.8 

5.2

8.3

12

22

1.1 

1.6

2.7

124

195

Discharge, in second-feet, water year Oc.tober 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0

0 

0 

0

0 

0 

0 

0 

0

0

o

3.3 

10 

12

12 

12 

12 

12 

12

12 

12 

12

12

12

12

12 

12 

12 

90

Dec.

145 

66 

30 

17 

12

11 

9.6 

8.3 

5.8 

6.4

7.1 

8.O 

7.4

7.1 

7.1

7.7 

7.7 

8.3 

8.3 

1.7

8.7 

11 

12 

15 

12

10 

9.6 

10 

9.6 

8.0 

7.4

Jan.

7.1 

a7.1 

a7.1 

a7.1 

a7.1

6.8

6.1 

a5. 9

aS.O

a5.0 

aS.O 

5.0 

5.0 

5.0

aS.O 

aS.O 

aS.O 

a4.7 

4.7

a4.7 

a4.7 

a4.8 

aS.O 

a5.3

a5.3 

aS.O 

aS.O 

4.7 

4.0 

a4.0

Feb.

a4.0 

a4.0 

a4.0 

a4.0 

a4.0

a4.0 

a4.5 

aS.O 

a5. 5

5.5 

a5. 5 

aS.O 

aS.O 

aS.O

a5. 5 

aS.O 

a4.5 

a4.0 

a3.8

a3.8 

3.8 

a3.8 

3.5 

3.5

3.5 

5.3 

3.0

Month

Goto 

Nove 

Dece

Ca

janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

3.5 

3.5 

3.5 

3.5 

3.3

4.7 

4.5

5.0

5.0

5.5 

6.1 

6.8 

6.4 

5.8

5.5 

6.1 

6.1 

5.8 

5.8

6.4 

6.4 

7.1 

7.7 

8.3

8.3 

8.3 

9.1 

9.6 

10 

10

Apr.

8.^ 

8.3 

8.3 

8.0

7.7

7.7 

9.6 

14 

13

12 

12 

13 

14 

15

15 

15 

18 

23 

31

36 

35 

33 

41 

64

102 

114 

132 

162 

171

Secondfoot-days

0 

283.3 

500.8

4,730.3

168.3 

119.5 

192.3 

1,150.6 

4,116 

335 

431 

974.1 

542.2

8,813.1

May

138 

109 

124 

173 

185

158 

132 

116 

102 

121

162 

172 

184 

184 

153

113 

106 

106 

104 

103

103 

95 

87 

88 

109

146 

149 

149 

148 

150 

147

Maximum

0 

90 

145

145

7.1 

5.5 

10 

171 

185 

137 

36 

50 

144

185

June

137 

69 

66 

63 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0 

0 

35

36 

36 

36 

36 

36

36 

36 

36 

36 

36 

36

Minimum

0 

0 

5.8

0

4.0 

3.0 

3.3 

7.7 

87 

0 

0 

0 

0

0

Aug.

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

35

35 

35 

35 

35 

36

50 

26 

36 

26 

26

26 

26 

26 

26 

1.1 

0

Mean

0 

9.44 

16.2

12.9

5.43 

4.27 

6.20 

38.4 

133 

11.2 

13.9 

31.4 

18.1

24.1

Sept.

0 

0 

0

0 

0

7.2 

35 

30 

30 

51

110 

144 

118 

17 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff In 

acre-feet

0 

562 

993

9,390

334 

237 

381 

2,280 

8,160 

664 

855 

1,930 

1,080

17,480

a No gage-height record; discharge Interpolated.
COLORADO RIVER MAIN STEM 17

Colorado River below Shadow Mountain Dam, Colo.

Location.- Water-stage recorder, lat. 40°l£ l , long. 105°50', in SE^ sec. 19, T. 3 N., R. 

Yb W., ,1ust upstream from Pole Creek, about a quarter of a mile downstream from Shadow Mountain Dam, and 3| miles south of town of Grand Lake. Datum of gage is 8,320.00 

feet above mean sea level (Bureau of Reclamation bench mark).

Drainage area.- 190 square miles.

Records available.- October 1947 to September 1949.

Extremes.- Maximum discharge during year, 1,800 second-feet June 20 (gage height, 4.81 

feet); minimum daily, 14 second-feet Sept. 20-26.

1947-49: Maximum discharge, that of June 20, 1949; minimum daily, that of Sept. 20- 

26, 1949.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. Flow regulated by Shadow Kountain Reservoir (see p. 15). Diversions above reservoir for irrigation. For transmountain diversion by Grand River 

ditch through La Poudre Pass to Cache la Poudre River Basin (see p. 26). Transmountain diversion through Alva B. Adams tunnel to Big Thompson River Basin (see 

preceding page).

Rating tables, water year 1948-49, except periods of Ice effect

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Mar. 18 to Apr. 6, Sept. 17-30)

Oct. 1 to Jan. 31

1.3 13

1.4 20

1.5 £9

Feb. 1 to Sept. 30

1.7 

1.9 

2.2 

2.5 

2.9

165

260

430

3.4 720

3.9 1,070

4.8 1,790

harge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

20 

20 

20 

20 

21

21 

21 

21 

21 

21

21 

22 

22 

22 

23

22 

22 

22

22

22 

22 

22 

22

21 

21 

20 

20 

20 

20

Nov.

20 

20

20 

20 

20

20 

20 

20 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

19

Dec.

19 

19 

19 

19 

19

19

19 

19 

*19

19

19 

19 

19 

19 

19

19 

19 

19 

19 

b!9

b!9 

blS 

b!8 

18 

18

18 

19 

19 

19 

19 

19

Jan.

21

22 

22

22

22

22 

22 

24 

27

28 

*28 

28 

28 

28

24 

24 

24 

24 

24

24 

24 

24 

24 

24

24 

22 

22 

22 

22 

20

Feb.

24 

24 

24 

24 

24

24 

25 

26 

26 

26

26 

*26 

26 

25

24

22 

22 

22 

22 

22

21 

21 

21 

21 

21

22 

22 

22

Month

Ooto 

Hove 

Deoe

Ca

janu 

Febp 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

22 

22 

22

22 

22

23 

23 

23 

23 

23

23 

23 

23 

23 

23

23

23 

*23 

23 

23

23 

23 

23 

23 

23

23 

23 

23 

23 

23 

23

Apr.

23 

24 

24 

24 

24

24 

24 

25 

25

24

24 

24 

23 

23 

24

24 

25 

26 

25

30

41 

49 

49 

93 

165

213 

284 

312 

380 

426

Secondfoot -day s

658 

578 

584

44,698

738 

655 

708 

2,501 

11,468 

32,686 

14,418 

2,682 

2,062

69,738

May

349 

256 

246 

296 

312

296 

260 

260 

250 

219

219 

232 

304 

403

408

421 

465 

470 

440 

398

390 

362 

308 

284 

272

276 

312 

486 

624 

748 

902

Maximum

23 

20 

19

1,350

28 

26 

23 

426 

902 

1,730 

1,000 

228 

1,080

1,730

June

832 

672 

516 

492 

498

684 

902 

895 

776 

741

986 

1,110 

1,280 

,450 

,570

,470 

,550 

,690 

,730 

1,160

1,550 

1,710 

1,710 

1,490 

1,140

1,010 

916 

755 

660 

741

July

860 

846 

720 

678 

684

702 

874 

1,000 

776 

618

606 

492 

435 

412 

412

390 

336 

332 

332 

332

332 

328 

328 

328 

276

246 

174 

142 

145 

142 

140

Minimum

20 

19 

18

18

20 

21 

22 

23 

219 

492 

140 

23 

14

14

Aug.

135 

132 

118 

108 

106

106 

104 

122 

216 

228

171 

171 

168 

158 

102

91 

82 

39 

25 

25

25 

25 

25 

26 

26

26 

25 

25 

25 

24 

23

Maan

21.2 

19.3

18.8

122

23.8 

23.4 

22.8 

83.4 

370 

1,090 

465 

86.5 

68.7

191

Sept.

22 

22 

22 

23 

23

22 

22 

22 

24 

24

26 

28 

69 

28 

1,080

388 

27

17 

15 

14

14 

14 

14

14 

14

14 

15 

15

15 

15

Runoff In 

acre-feet

1,310 

1,150 

1,160

88,66O

1,460 

1,300 

1,400 

4,960 

22,750 

64,830 

28,600 

5,320 

4,090

J.38,300

* Winter dlacharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Dec. 24 to Mar. 17 (atage-dlscharge relation affected by Ice during 

part of period); discharge computed on basis of 2 discharge measurements, weather records, and records for nearby stations.
18 COLORADO RIVER MAIN STEM

Colorado River near Granby, Colo.

Location.- Water-stage recorder, lat. 40°07', long. 105°54', in sec. 22, T. 2 N., R. 76 W., 

about half a mile upstream from bridge on U. S. Highway 34, lj miles upstream from 

Willow Creek, and 4 miles northeast of Granby.

Drainage area.- 322 square miles.

Records available.- June 1908 to September 1911, May 1934 to September 1949.

Average discharge.- 18 years, 320 second-feet.

Extremes.- Maximum discharge during year, 2,960 second-feet June 18 (gage hoight, 4.41

 feet); minimum daily, 21 second-feet Mar. 4-6, 16, 17.

1908-11, 1934-49: Maximum discharge observed, 4,100 second-feet June 20, 1909 (gage 

height, 5.5 feet, datum then use); minimum daily, 12 second-feet Sept. 17, 1946; minimum observed, prior to starting construction of Shadow Mountain Reservoir, 20 secondfeet Apr. 6, 1936 (discharge measurement).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation. Transmountain diversions by 

Grand River ditch and Alva B. Adams tunnel (see pp. 16, 26 Flow partly regulated by 

Shadow Mountain Reservoir (see p. 15) and Granby Reservoir (under construction). 

Storage in Granny Reservoir Sept. 30 was 4,110 acre-feet, most of which was drawn from 

Shadow Mountain Reservoir Sept. 15, 16.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

38 

39 

38 

38 

39

41 

40 

40 

40 

40

40 

39 

39 

39 

38

39 

40 

40 

40 

40

40 

39 

40 

40 

40

40 

41 

41 

42 

42 

43

Nov.

42

41 

42 

43 

37

48 

40 

38 

41 

42

*46 

55 

48 

50 

49

42 

42 

40 

38 

38

38 

38 

38 

37 

36

35 

34 

33 

34 

36

Dec.

27 

36 

37 

36 

35

36 

36 

35 

35 

*35

35 

36 

36 

35 

34

32 

32

33 

33 

33

31 

30 

29 

30 

30

31 

31 

30 

29 

28 

28

Jan.

28 

28 

28 

27 

27

26 

26 

26 

26 

27

26 

25 

25 

24 

*24

25 

25 

25 

25 

26

25 

25 

25 

24

25

24 

25

25 

24 

26 

27

Feb.

27 

27 

27 

28 

28

28 

28 

28 

29 

29

28 

28 

27 

26 

*25

24 

24 

24 

24 

24

24 

24 

23 

25 

23

24 

24 

24

Month

Octo 

Nove 

Decs

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber...... ...............................

lendar year 1948

St..................... .................

ter year 1948-49 .......................

Mar.

25 

25 

23 

21 

21

21 

22 

23 

24 

24

25 

25 

25 

23 

22

21 

21 

*22 

23 

25

27 

28 

30 

29 28*

30 

29 

28 

28

27 

27

Apr.

34 

32 

35 

34 

38

38 

39 

42 

44 

44

46 

50 

54 

54 

52

57 

62 

76 

88 

108

136 

170 

212 

286 

424

488 

574 

623 

772 

756

Secondfoot -days

1,235 

1,221 

1,024

83,914

794 

722 

771 

5,468 

23,073 

56,165 

28,151 

5,335 

1,280

125,239

May

644 

512 

452 

536 

595

567 

488 

435 

424 

412

452 

588 

732 

825 

843

1,000 

1,020 

920 

852 

772

740 

779 

595 

518 

530

672 

890 

1,070 

1,220 

1,440 

1,550

Maximum

43 

55 

37

2,230

28 

29 

30 

772 

1,550 

2,870 

1,860 

360 

72

2,870

June

1,390 

1,090 

852 

708 

825

1,150 

1,440 

1,420 

1,380 

1,320

1,550 

1,800 

2,120 

2,440 

2,510

2,450 

2,570 

2,870 

2,830 

2,770

2,440 

2,750 

2,770 

2,560 

2,090

1,820 

1,790 

1,660 

1,420 

1,380

Minimum

July

,470 

,520 

,410 

,330 

,460

,500 

,620 

,860 

,660 

,330

1,210 

1,020 

920 

852 

798

740 

665 

644 

658 

651

651 

623 

560 

554 

536

464 

385 

322 

246 

222 

250

38 

33 

28

28

24 

23 

21 

32 

412 

708 

222 

67 

25

21

Aug.

250 

246 

246 

229 

222

218 

215 

212 

290 

260

326 

294 

278 

262 

218

180 

170 

136 

100 

88

86 

84 

74 

72 

70

70 

68 

68 

68 

68 

67

Mean

39.8 

40.7 

33.0

229

25.6 

25.8 

24.9 

182 

744 

1,872 

908 

172 

42.7

343

Sept.

65 

67 

67 

72 

72

68 

65 

64 

51 

59

65 

59 

45 

26 

26

29 

27 

27 

27 

27

27 

27 

27 

27 

29

29 

29 

26 

25 

26

Runoff in 

acre-feet

2,450 

2,420 

2,030

166,400

1,570 

1,430 

1,530 

10,850 

45,760 

111,400 

55,840 

10,580 

2,540

248,400

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 18 to Mar. 31 (no gage-height record Dec. 26 

to Har. 17; discharge computed on basis of 2 discharge measurements, weather records, and records for 

nearby stations).
COLORADO RIVER MAIN STEM 19

Colorado River at Hot Sulphur Springs, Colo.

Location.- Water-stage recorder, lat. 40°05', long. 106°05', in sec. 1, T. IN., R. 78 W., 

 about 1,000 feet north of U. S. Highway 40, 1 mile east of Hot Sulphur Springs, and 

3 miles upstream from Beaver Creek.

Drainage area.- 782 square miles.

Records available - July 1904 to September 1909, September 1910 to September 1924, October 

19H5 to September 1928, and October 1933 to September 1949 in reports of Geological 

Survey. July 1904 to September 1909, September 1910 to September 1924, and October 

1925 to September 1949 in reports of State engineer.

Average discharge.- 43 years (1904-9, 1910-24, 1925-49), 671 second-feet.

Extremes.- Maximum discharge during year, 5,200 second-feet June 18 (gage height, 4.44 

feet); minimum daily discharge, 79 second-feet Sept. 26-29.

1904-9, 1910-24, 1925-49: Maximum discharge observed, 10,300 second-feet June 15, 

1921 (gage height, 8.7 feet, site and datum then in use); minimum daily determined, 

36 second-feet Dec. 30, 31, 1931.

Rettiarks. - Records excellent except those for period of ice effect or no gage-height record, 

which are fair. Flow affected by transmountain diversions (Grand River ditch, Alva B. 

Adams tunnel, and Morrat tunnel), storage reservoirs and diversions for irrigation. 

Records of chemical analyses and water temperatures for the water year 1949 are given 

in Water-Supply Paper 1163.

Discharge, in second-feet,-water year October 1949 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

113 

110 

102 

102 

108

113

113 

110 

110 

113

110 

105 

102 

102 

102

108 

108 

108 

113 

113

108 

102

99 

97 

99

102 

99 

108 

110 

130 

119

Nov.

113 

116 

124 

134 

127

158 

134 

127 

119 

125

130 

*125 

120 

115 

110

110 

110 

105 

105 

105

105 

105 

105 

105 

105

100 

98 

90 

94 

98

Dec.

105 

96 

100 

105 

98

105 

105 

105 

105 

88

96

*100 

105 

100 

96

94 

94 

96 

98 

98

96 

90 

86 

88 

90

90 

94 

98 

94 

94 

92

Jan.

96 

98 

98 

96 

88

92

96 

100 

110 

120

120 

120 

120 

130 

*130

110 

98 

105 

105 

105

105 

105 

100 

100 

100

98 

100 

100 

100 

105 

105

Feb.

105 

105 

105 

105 

110

105 

100 

105 

105 

105

105 

100 

96 

96 

94

94 

*92 

90 

92 

96

96 

96 

96 

96 

98

100 

100 

100

Month

Ooto 

Nove 

Deee

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu

Sept

Wa

lendar year 1948

ter je r 1948-49 .......................

Mar.

105 

110 

92 

92 

105

110 

115 

120 

120 

120

120 

120 

120 

110 

115

120 

140 

145 

145 

150

*160 

150 

160 

150 

140

150 

125 

135 

130 

135 

130

Apr.

130 

125 

115 

140 

230

180 

170 

209 

189 

181

169 

205 

245 

229 

185

213 

268 

335 

396 

*470

482 

524 

630 

852 

1,030

1,120 

1,250 

1,340 

1,590 

1,550

Secondfoot-days

3,338 

3,417 

3,001

171,234

3,255

2,787 

3,939 

14,752 

50,862 

98,980 

43,675 

9,385 

3,599

240,990

May

1,240 

1,010 

1,070 

1,240 

1,380

1,240 

1,100 

1,000 

932 

990

1,110 

1,620 

1,800 

1,880 

1,970

2,320 

2,350 

2,080 

1,890 

1,770

1,640 

1,490 

1,360 

1,250 

1,330

1,590 

1,970 

2,210 

2,480 

2,690 

2,860

Maximum

130 

158 

105

4,040

130 

110 

160 

1,590 

2,860 

5,060 

2,820 

536 

209

5,060

June

2,620 

2,210 

1,800 

1,580 

1,840

2,130 

2,550 

2,480 

2,620 

2,60O

2,890 

3,200 

3,630 

4,220 

4,160

4,160 

4,440 

5,060 

4,960 

4,940

4,240 

4,520 

4,500 

4,240 

3,520

3,060 

3,110 

2,860 

2,520 

2,320

July

2,340 

2,320 

2,180 

2,210 

2,400

2,450 

2,710 

2,820 

2,520 

2,050

1,840 

1,600 

1,430 

1,300 

1,190

1,090 

1,010 

950 

1,010 

980

960 

869 

780 

788 

812

716 

616 

518 

424 

396 

396

Minimum

97

90 

86

84

88 

90 

92 

115 

932 

1,580 

396 

162 

79

79

Aug.

390 

390 

396 

390 

365

355 

350 

330 

424 

536

488 

434 

412 

402 

360

304 

299 

294 

245 

221

209 

205 

197 

189 

185

181 

177 

165 

165 

165 

162

Mean

108 

114 

96.8

468

105 

99.5 

127 

492 

1,641 

3,299 

1,409 

303 

120

660

Sept.

169 

162 

169 

209 

193

169 

151 

144 

137 

137

151 

154 

130 

122 

92

105 

97 

92 

89 

92

89 

86 

84 

84 

84

79 

79 

79 

79 

92

Runoff In 

acre-feet

6,620 

6,780 

5,950

339,800

6,460 

5,530 

7,810 

29,260 

100,900 

196,300 

86,630 

18,610 

7,140

478,000

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 10 to Apr. 7 (no gage-height record Jan. 27 

to Feb. 16j discharge computed on basis of weather records).
20 COLORADO RIVER MAIN STEM

Colorado River near Dotsero, Colo.

Location.- Water-stage recorder, lat. 39°39', long. 107°05', in sec. 6, T. 5 S., R. 86 

W., about 500 feet south of 0. S. Highway 6-24, ij miles west of Dotsero, and l| miles 

downstream from Eagle River.

Drainage area.- 4,390 square miles.

Records available.- December 1940 to September 1949.

Extremes.- Maximum discharge during year, 15,100 second-feet June 18 (gage height, 10.07 

feet); minimum daily, 470 second-feet Dec. 28.

1940-49: Maximum discharge, 16,100 second-feet May 22, 1948 (gage height, 10.24 

feet); minimum daily, 350 second-feet Jan. 5, 1944.

Remarks.- Records excellent except those for period of no gage-height record, which are 

i'air. Flow affected by transmountain diversions, storage reservoirs, power developments, and diversions for irrigation.

Cooperation.- Gage-height record furnished by The Public Service Co. of Colorado.

Rating tables, water year 1948-49, (gage height, In feet,

and"discharge, in second-feet) 

(Shifting-control method used May 5-16)

Oct. 1 to May 14 May 15 to Sept. 30

1.2 435 3.4 2,080 2.0 870 5.5 4.78O 

1.6 610 4.5 3,390 2.9 1,560 7.O 7,400 

2.1 910 5.0 4,100 3.5 2,120 8.0 9,460 

2.6 1,320 6.0 5,750 4.5 3,300 10.0 14,900

Discharge, In second-feet, water year. October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

882 

786 

638 

687 

632

896 

1,040 

868 

768 

732

698 

896 

889 

804 

828

738 

798 

889 

709 

1,170

1,060 

1,230 

1,250 

1,120 

924

1,180 

1,260 

1,190 

1,290 

931 

1,120

Nov.

1,060 

1,230 

1,170 

1,350 

1,370

1,170 

1,120 

1,080 

973 

996

1,130 

1,030 

1,080 

903 

792

792 

1,070 

1,120 

910 

1,090

868 

786 

1,060 

1,130 

1,150

854 

868 

756 

804 

868

Dee.

1,100 

1,050 

930 

1,000 

620

570 

560 

1,020 

910 

920

980 

1,230 

810 

810 

1,120

1,070 

1,010 

1,130 

1,000 

760

790 

990 

1,130 

1,050 

840

580 

540 

470 

860 

990 

830

Jan.

960 

1,070 

680 

510 

640

940 

870 

1,000 

840 

860

930 

1,000 

1,210 

1,190 

1,170

1,210 

920 

840 

1,110 

1,270

1,250 

1,420 

1,380 

1,330 

1,180

1,360 

1,320 

1,200 

590 

700 

680

Feb.

630 

1,010 

1,100 

1,250 

1,310

1,270 

1,230 

930 

1,120 

1,220

1,280 

1,300 

1,230 

660 

580

530 

630 

650 

730 

890

810 

760 

770 

820 

890

890 

900 

1,050

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

910 

920 

910 

924 

938

903 

847 

924 

861 

882

889 

875 

798 

828 

861

973 

889 

756 

774 

792

822 

780 

938 

822 

822

924 

838 

780 

786 

996 

896

Apr.

1 

1

1

1

1 

1 

1

1

1 

1 

1

1 

1

1 

1 

1 

1 

1

2, 

2, 

2, 

2 

3

4, 

4, 

4, 

5, 

5,

Secondfoot-days

28,903 

30,580 

27,670

889,838

31,630 

26,440 

26,858 

64,159 

168,770 

302,890 

167,170 

49,893 

33,391

958,354

000 

120 

882 

687 

210

390 

440 

540 

680 

610

420 

520 

620 

610 

540

190 

220 

360 

570 

960

070 

190 

420 

740 

400

040 

450 

670 

080 

530

May

5,000 

4,160 

4,400 

4,930 

5,200

5,190 

4,770 

4,240 

3,440 

3,800

4,040 

4,510 

5,140 

5,700 

5,740

6,010 

6,730 

6,500 

6,010 

5,960

5,570 

4,920 

4,270 

4,570 

4,560

5,340 

6,260 

7,290 

8,000 

8,040 

8,480

Maximum

1,290 

1,370 

1,230

14,900

1,420 

1,310 

996 

5,530 

8,480 

14,200 

8,480 

2,280 

1,410

14,200

June

8,080 

7,130 

6,160 

5,840 

6,080

6,520 

7,130 

7,320 

7,780 

8,240

8,930 

9,600 

10,800 

11,100 

12,200

12,600 

13,600 

14,200 

13,900 

13,200

13,100 

12,200 

12,700 

13,500 

12,200

11,000 

9,750 

10,300 

9,330 

8,400

July

7,780 

7,600 

7,660 

7,860 

7,900

8,480 

8,440 

8,480 

8,240 

7,860

6,980 

6,260 

5,330 

4,880 

4,620

4,300 

4,120 

3,800 

3,800 

3,800

3,830 

3,660 

3,400 

3,410 

3,930

4,620 

4,320 

3,580 

3,080 

2,610 

2,540

Aug.

1,840 

2,280 

2,140 

2,080 

2,110

2,090 

1,830 

1,620 

2,060 

2,040

2,090 

2,240 

2,060 

1,740 

1,440

1,560 

1,630 

1,670 

1,530 

1,420

1,060 

1,010 

1,260 

1,500 

1,540

1,170 

1,130 

954 

891 

975 

933

Minimum Mean

632 932 

756 1,019 

470 893

470 2,431

510 1,020 

530 944 

756 866 

687 2,139 

3,440 5,444 

5.840 10,100 

2f540 5,393 

891 1,609 

898 1,113

470 2,626

Sept.

947 

898 

954 

954 

1,140

1,350 

1,330 

1,340 

1,270 

1,210

1,180 

1,100 

1,410 

1,370 

1,290

1,260 

1,030 

940 

954 

954

1,050 

1,140 

1,040 

1,070 

982

898 

1,070 

1,050 

1,060 

1,150

Runoff In 

acre-feet

57,330 

60,650 

54,880

1,765,000

62,740 

52,440 

53,270 

127,300 

334,800 

600,800 

331,600 

98,960 

66,230

1.901.00C

Note.- Mo gage-height record Dec. 2 to Mar. 3 (stage-discharge relation affected by ice during most 

of period); discharge computed on basis of weather records and records for station at Glenwood 

Springs.
COLORADO RIVER MAIN STEM 21

Colorado River at Glenwood Springs, Colo.

Location.- Water-stage recorder, lat. 39°33', long. 107°19', in sec. 9, T, 6 S., R. 89 W., 

 10 feet from H. S. Highway 6-24 at power plant at Glenwood Springs, half a mile upstream

from Roaring Pork. Datum of gage is 5,720.71 feet above mean sea level, adjustment of

1912.

Drainage area.- 4,560 square miles.

Records available.- May 1899 to September 1949.

Average discharge.- 50 years, 2,904 second-feet.

Extremes.- Maximum discharge during year, 16,300 second-feet June 18 (gage height, 9.34 

feet); minimum daily, 495 second-feet Dec. 28.

1899-1949: Maximum discharge, 30,100 second-feet June 14, 15, 1918 (gage height, 

12.55 feet); minimum daily, 286 second-feet Jan. 22, 1935.

Remarks.- Records excellent except those for period of no gage-height record, which are

good. Flow affected by transmountain diversions, storage reservoirs, power developments, 

and diversions for irrigation. Low flow regulated by Shoshone power plant 6 miles above

station.

Rating tables, water year 1948-49 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used May 31 to June 17)

Oct. 1 to June 12 June 13 to Sept. 30

2.7 460 4.3 1,840 6.0 5,100 3.3 820 5.5 3,880 

3.0 630 4.8 2,520 7.0 8,120 4.0 1,48O 6.5 6,500 

3.4 930 5.3 3,440 8.0 11,400 4.5 2,080 8.0 11,200 

5.0 2,860 9.2 15,700

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

866 

1,OOO 

721 

714 

786

786 

1,180 

1,080 

834 

810

770 

786 

1,130 

975 

882

890 

794 

993 

882 

1,030

1,180 

1,270 

1,270 

1,360 

1,280

957 

1,350 

1,360 

1,350 

1,330 

906

Hov.

1,450 

1,150 

1,290 

1,310 

1,370

1,420

1,290 

1,230 

1,090 

1,080

1,180 

1,270 

1,190 

1,210 

770

818 

1,130 

1,220 

1,020 

1,000

-1,190 

794 

834 

1,350 

1,270

1,210 

672 

993 

659 

576

Dec.

1,160 

1,100 

984 

1,070 

680

636 

566 

1,070 

966 

984

1,050 

1,300 

874 

858 

1,190

1,150 

1,080 

1,200 

1,070 

822

849 

1,060 

1,200 

1,120 

906

655 

609 

495 

930 

1,060 

903

Jan.

1,020 

1,140 

749 

564 

710

1,010 

948 

1,070 

914 

930

1,000 

1,070 

1,270 

1,250 

1,240

1,280 

975 

906 

1,170 

1,340

1,310 

1,480 

1,440 

1,390 

1,240

1,420 

1,380 

1,260 

649 

756 

742

Feb.

686 

1,070 

1,160 

1,310 

1,370

1,330 

1,300 

984 

1,180 

1,280

1,340 

1,360 

1,290 

714 

639

588 

686 

714 

786 

948

866 

818 

826 

890 

948

948 

957 

1,110

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Mar.

975 

993 

984 

1,000 

1,010

975 

906 

1,020 

906 

948

957 

957 

939 

818 

1,000

1,130 

1,000 

794 

810 

914

686 

826 

1,010 

957 

1,050

794 

1,120 

751 

792 

1,100 

1,000

Apr.

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

2 

2 

2 

2 

3

4 

4 

4 

5 

5

Secondfoot -days

31,522 

33,036 

29,597

948,203

33,623

28 , 098 

29,122 

66,609 

183,770 

329,730 

179,470 

53,210 

34,890

1,032,677

984 

100 

220 

763 

922

360 

480 

590 

810 

640

420 

610 

620 

660 

660

440 

350 

350 

500 

950

080 

160 

390 

770 

510

270 

790 

940 

410 

860

May

5,460 

5,690 

5,490 

5,240 

5,520

5,550 

5,130 

4,530 

3,700 

3,970

4,290 

4,760 

5,300 

6,000 

6,060

6,390 

7,190 

7,030 

6,480 

6,330

6,000 

5,410 

4,840 

5,020 

4,790

5,910 

6,900 

7,960 

8,700 

8,890 

9,240

Maximum

1,360 

1,450 

1,300

15,700

1,480 

1,370 

1,130 

5,860 

9,240 

15,400 

9,03p 

2,300 

1,420

15,400

June

8,920 

8,020 

6,870 

6,360 

6,600

7,060 

7,740 

8,020 

8,570 

9,110

9,880 

10,600 

11,800 

13,200 

13,400

13, 50^ 

1'4 , 500 

]5,400 

15,000 

14,400

14,000 

13,200 

13,600 

14,300 

13,200

11,900 

10,500 

11,000 

9,960 

9,120

July

8,360 

8,120 

8,180 

8,300 

8,330

8,840 

8,960 

9,030 

8,750 

8,330

7,550 

6,800 

5,890 

5,330 

4,970

*,630 

4,410 

4,150 

4,100 

4,200

4,080 

3,990 

3,680 

3,680 

4,270

5,020 

4,740 

3,990 

3,340 

2,790 

2,660

Aug.

1,960 

2,280 

2,300 

2,180 

2,190

2,180 

1,990 

1,760 

2,030 

2,160

2,220 

2,300 

2,220 

1,830 

1,630

1,570 

1,670 

1,740 

1,670 

1,560

1,440 

1,200 

1,160 

1,470 

1,630

1,450 

1,290 

1,200 

1,020 

982 

928

Minimum Mean

714 1,017 

576 1,101 

495 955

495 2,591

564 1,085 

588 1,004 

686 939 

763 2,202 

3,700 5,928 

6,360 10,990 

2,660 5,789 

928 1,716 

883 1,163

495 2,829

Sept.

946 

910 

883 

1,160 

1,040

1,300 

1,380 

1,400 

1,400 

1,370

1,340 

1,270 

1,310 

1,420 

1,420

1,350 

1,260 

1,020 

937 

1,000

al,020 

al,060 

al,160 

al,070 

1,140

946 

928 

1,150 

1,150 

1,150

Runoff In 

acre-feet

62,520 

65,530 

58,700

1,881,000

66, -690 

55,730 

57,760 

132,100 

364,500 

654,000 

356,000 

105,500 

69,200

2,048,000

a Ho gage-height record; discharge computed on basis of records for station near Dotsero.
" COLORADO RIVER MAIN STEM

Colorado River near Cameo, Colo.

Location.- Water-stage recorder, lat. 39°13', long. 108°15', in sec. 6, T. 10 S., R. 97 

W., 1UO feet west of U. S. Highway 6-24, 3 miles upstream from Grand Valley project 

diversion dam, 3.4 miles upstream from Plateau Creek, and 6.7 miles northeast of Cameo.

Drainage area.- 8,055 square miles.

Records available.- October 1933 to September 1949.

Average discharge.- 16 years, 4,124 second-feet.

Extremes.- Maximum discharge during year, 27,700 second-feet June 18 (gage height, 10.22 

reetTT minimum daily, 1,060 second-feet Jan. 6.

1933-49: Maximum discharge, 36,000 second-feet June 16, 1935 (gage height, 10.91 

feet); minimum daily, 700 second-feet Dec. 29, 1939.

Remarks.- Records excellent except those for period of ice effect or no gage-height record, 

which are fair. Flow affected by transmountain diversions, storage reservoirs, power 

developments, and diversions for irrigation. Records of chemical analyses and water 

temperatures for the water year 1949 are given in Water-Supply Paper 1163.

Rating tables, water year 1948-49, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Nov. 28 Nov. 29 to Sept. 30

1.6 1,280 1.3 1,050 4.0 5,100 8.0 17,200 

2.0 1,730 1.8 1,540 5.0 7,240 9.0 El, 600 

2.3 2,140 2.3 2,200 6.0 10,100 10.1 27,100 

3.0 3,300 7.0 13,400

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,410 

1,510 

1,660 

1,340 

1,560

1,770 

1,650 

1,990 

1,850 

1,620

1,550 

1,550 

1,620 

1,820 

1,770

1,670 

1,670 

1,590 

1,810 

1,660

1,870 

1,890 

2,010 

2,000 

2,060

1,930 

1,720 

2,110 

2,100 

2,080 

1,970

Nov.

1,690 

2,040 

1,920 

2,040 

2,080

2,110 

2,070 

2,000 

1,930 

1,780

1,850 

1,940 

1,940 

1,900 

1,860

1,540 

1,560 

1,890 

1,860 

1,620

1,740 

1,800 

1,510 

1,620 

2,010

1,930 

1,780 

1,460 

1,380 

1,310

Dec.

1,110 

1,420 

1,690 

1,580 

1,580

1,420 

1,200 

1,140 

1,350 

1,560

1,520 

1,570 

1,730 

1,640 

1,400

1,560 

,700 

,640 

,670 

,660

,470 

,370 

,480 

,660 

1,700

1,500 

1,240 

1,140 

1,110 

1,260 

1,500

Jan.

1,370 

1,480 

1,630 

1,460 

1,120

1,060 

1,290 

1,440 

1,500 

1,510

1,470 

1,540 

1,620 

1,750 

1,830

1,800 

1,760 

1,580 

1,400 

1,520

1,780 

1,900 

1,980 

2,080 

2,010

1,870 

1,820 

1,880 

1,800 

1,500 

1,100

Feb.

1,190 

1,160 

1,320 

1,600 

1,740

1,830 

1,810 

1,800 

1,680 

1,610

1,750 

1,860 

1,920 

1,880 

1,520

1,170 

1,110 

1,140 

1,200 

1,270

1,400 

1,450 

1,400 

1,380 

1,430

1,490 

1,530 

1,530

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 .......................

Mar.

1,610 

1,630 

1,580 

1,580 

1,600

1,740 

1,700 

1,670 

1,650 

1,520

1,620 

1,580 

1,560 

1,520 

1,400

1,660 

1,680 

1,650 

1,440 

1,460

1,550 

1,380 

1,540 

1,670 

1,620

1,580 

1,440 

1,740 

1,560 

1,660 

1,760

Apr.

1 

1 

1 

1

1

1 

2 

2 

2 

2

2 

2 

2 

2

2

2 

2 

2 

2 

2

3 

3 

3 

4 

5

6 

6 

7 

7 

8

Secondfoot-days

54,810 

54,160 

45,570

1,626,280

49,850 

42,170 

49,350 

101,230 

288,650 

544,380 

299,520 

92,820 

61,690

1,684,200

,660 

,660 

,730 

,710 

410

,640 

,020 

,320 

,560 

,580

,500 

,230 

,380 

,620 

,500

,380 

,220 

,280 

,480 

,890

,440 

,590 

,880 

,420 

,3QO

,190 

,980 

,270 

,730 

,660

May

8,720 

7,450 

7,140 

8,520 

9,080

8,960 

8,260 

7,340 

6,560 

5,980

6,880 

7,500 

8,040 

8,900 

9,740

10,700 

10,900 

11,000 

10,300 

9,920

9,710 

8,930 

8,040 

7,400 

7,980

8,900 

10,700 

12,000 

13,800 

14,600 

14,700

Maximum

2,110 

2,110 

1,730

26,200

2,080 

1,920 

1,760 

8,660 

14,700 

26,700 

14,900 

4,560 

2,580

26,700

June

14,500 

13,100 

11,100 

9,980 

10,700

11,100 

11,900 

12,900 

13,700 

14,800

16,300 

17,600 

19,100 

20,700 

21,200

21,400 

23,000 

26,000 

26,700 

25,300

24,200 

23,400 

22,200 

23,000 

21,200

19,500 

18,100 

18,100 

17,500 

16,100

July

14,900 

14,300 

14,400 

14,200 

14 , 400

14,200 

14,500 

14,400 

13,900 

13,400

12,700 

11,300 

10,000 

8,900 

8,400

7,630 

7,340 

7,170 

6,740 

7,190

6,980 

6,810 

6,300 

6,100 

6,720

7,420 

7,320 

6,610 

5,760 

4,900 

4,630

Minimum

1,340 

1,310 

1,110

1,110

1,060 

1,110 

1,380 

1,410 

5,980 

9,980 

4,630 

1,710 

1,680

1,060

Peak discharge (base, 19,000 sec. -ft*. ).- June 18 (11:30 p.m.) 27,700 sec. -ft

Aug.

4,470 

4,560 

4,060 

3,970 

3,840

3,790 

3,750 

3,480 

3,320 

3,980

3,700 

3,620 

3,700 

3,460 

3,020

2,600 

2,680 

2,760 

2,760 

2,540

2,400 

2,230

1,950 

1,950 

2,340

2,380 

2,160 

2,020 

1,880 

1,740 

1,710

Mean

1,768 

1,805 

1,470

4,443

1,608 

1,506 

1,592 

3,374 

9,311 

18,150 

9,662 

2,994 

2,056

4,614

; June 24

Sept.

1,720 

1,680 

1,700 

1,700 

1,900

1,870 

2,040

2,110 

2,160 

2,200

2,200 

2,230 

2,410 

2,580 

2,560

2,480 

2,400 

2,230 

1,970 

1,910

1,940 

1,970 

2,040 

2,020 

1,870

1,880 

1,760 

1,810 

2,170 

2,180

Runoff in 

acre-feet

108,700 

107,400 

90,390

3,226,000

98,880 

83,640 

97,880 

200,800 

572,500 

1,080,000 

594,100 

184,100 

122,400

3,341,000

(8:30 p.m.)

23,500 sec.-ft.

Note.- Stage-discharge relation affected by ice Nov. 29 to Mar. 5 (no gage-height record Jan. 2-4, 

Jan. 7 to Mar. 1; discharge computed on basis of records for Colorado River and Roaring Fork at Glenwood Springs).
COLORADO RIVER MAIN STEM 23

Colorado River near Cisco, Utah

Location.- Water-stage recorder, lat. 38°49', long. 109°18', in NWi sec. 17, T. ?3 S., 

RT~2T~E., 1 mile downstream from Dolores River, 11 miles south of Cisco, 97 miles upstream from Green River, and 235 miles upstream from San Juan River.

Drainage area.- 24,100 square miles.

Records available.- November 1914 to September 1917, October 1922 to September 1949.

October 1913 to November 1914 at site 31 miles downstream, published as Colorado River 

near Moab; records equivalent. Also calendar year estimates 1895-1910 and monthly 

estimates January 1911 to September 1913 and October 1917 to September 1922.

Average discharge.- 31 years (1913-17, 1922-49), 8,236 second-feet.

Extremes.- Maximum discharge during year, 53,800 second-feet June 20 (gage height, 16.18 

feet]; minimum- recorded, 1,840 second-feet Sept. 1 (gage height, 1.54 feet).

1914-17, 1922-49: Maximum discharge, 76,800 second-feet June 19, 1917 (gage height, 

19.7 feet); minimum recorded, 558 second-feet July 21, 1934 (gage height, 0.44 foot).

Maximum discharge known, about 125,OOt) second-feet July 4, 1884, from flooc record 

at Fruita.

Remarks.- Records excellent except those for periods of ice effect or doubtful or no gageheight record, which are fair. Diversions above station for irrigation and power, 

including transmountain diversions. Records of chemical analyses, water temperatures, 

and suspended sediment loads for the water year 1949 are given in Water-Supplj Paper 

1163.

Revisions (water years).- W 918: 1913, 1937.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

£9 

30 

31

Oct.

2,610 

2,570 

2,710 

2,680 

2,570

2,500 

2,810 

2,830 

3,100 

2,980

2,720 

2,620 

2,560 

2,560 

2,900

2,760 

2,680 

2,720 

2,640 

2,810

2,710 

2,800 

2,890 

2,920 

2,960

3,030 

2,900 

2,850 

3,790 

3,490 

3,420

Nov.

3,440 

3,530 

3,640 

3,440 

3,570

3,620 

3,680 

3,570 

3,280 

3,490

3,400 

3,450 

3,720 

3,780 

3,620

3,620 

3,280 

3,440 

3,700 

3,570

3,280 

3,300 

3,490 

3,140 

3,210

3,660 

3,580 

3,280 

2,560 

2,730

Dec.

2,480 

2,73O 

3,080 

3,170 

3,170

2,960 

2,520 

2,450 

2,420 

2,810

3,030 

3,230 

3,280 

3,680 

3,530

3,320 

3,340 

3,320 

3,250 

3,300

*3,140 

2,960 

3,140 

3,220 

3,200

3,170 

2,870 

2,590 

*2,760 

2,620 

2,810

Jan.

2,980 

2,940 

*2,550 

2,200 

2,250

2,350 

2,400 

2,300 

2,300 

2,400

2,600 

3,000 

3,500 

3,900 

4,000

4,100 

4,200 

3,700 

3,200 

2,750

2,800 

2,900 

3,050 

3,200 

3,500

*3,700 

3,650 

3,500 

3,000 

57100 

*2,600

Feb.

2,500 

2,450 

2,400 

2,600 

2,700

2,850 

3,000 

*3,200 

3,200 

3,150

3,100 

3,250 

3,200 

3,250 

3,300

*3,400 

3,400 

3,250 

3,050 

3,100

3,300 

3,500 

*3,850 

4,100 

4,400

4,700 

5,000 

*5,100

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

ber.....................................

lendar year 1946

ter year 1948-49 .......................

Mar.

5,200 

5,400 

5,200 

5,100 

5,000

5,100 

5,180 

5,200 

4,400 

*3,810

3,380 

3,360 

3,360 

3,250 

3,230

3,080 

3,250 

3,380 

3,450 

3,250

3,450 

3,620 

3,510 

3,550 

3,700

3,520 

3,410 

3,410 

3,780 

3,970 

3,990

Apr.

4,010 

3,780 

3,660 

3,800 

3,780

3,400 

3,660 

4,580 

5,620 

6,340

6,240 

5,970 

5,990 

7,100 

7,870

7,900 

8,170 

9,160 

10,200 

10,400

11,600 

12,800 

14,600 

16,800 

19,500

22,000 

23,200 

22,700 

21,700 

23,600

Secondfoot-days

88,090 

103,070 

93,550

3,171,760

94,620 

94,300 

122,490 

310,130 

650,100 

963,000 

457,710 

113,010 

79,930

3,170,000

Peak discharge (base, 26,000 sec. -ft.).- Mav 5 (3 D.m.

May

24,200 

21,200 

19,700 

23,300 

24,600

23,300 

20,000 

17,900 

15,900 

14,500

15,200 

18,600 

20,400 

20,900 

21,300

24,300 

25,700 

24,600 

23,000 

20,900

20,600 

19,000 

17,100 

16,400 

16,800

18 , 000 

20,900 

22,900 

24,800 

26,800 

27,300

Maximum

3,790 

3,780 

3,680

50,800

4,200 

5,100 

5,400 

23,600 

27,300 

53 , 200 

24,400 

5,540 

3,890

53,700

June

26,800 

24,800 

21,600 

18,800 

18,600

20,300 

20,800 

21,600 

23 , 400 

24,800

26,000 

29,300 

31,700 

34,800 

36,200

36,000 

36,400 

40,800 

48 , 100 

52,700

53 , 200 

44,400 

40,300 

38,700 

40,400

34,900 

32,000 

29 , 600 

29,000 

27,000

July

24,400 

22,900 

22,900 

23,400 

23,100

22,800 

21,800 

21,800 

21,500 

20,900

20,500 

19,000 

17,000 

14,800 

13,000

11,900 

10,900 

10,200 

9,810 

9,160

9,540 

9,420 

8,950 

8.220 

8,440

9,510 

10,400 

9,540 

8,340 

7,200 

6,380

Minimum

2,500 

2 ,560 

2,420

1,500

2,200 

2,400 

3,080 

3,400 

14,500 

18,600 

6,380 

2,030 

1,920

1,920

) 26,300 sec. -ft. ; May

Aug.

5,540 

5,250 

4,310 

4,680 

4,470

4,350 

4,120 

4,520 

5,620 

6,200

5,410 

4,760 

4,310 

4,210 

3,910

3,340 

2,990 

d2,850 

d2,7?0 

38,660

d2,600 

d2,520 

2 , 450 

2,260 

2,590

2,500 

2,710 

2,490 

2,350 

2,250 

2,0?0

Mean

2,842 

3,436 

3,018

8,666

3,052 

3,368 

3,951 

10,340 

28,970 

32,100 

14,760 

3,645 

2,664

8,685

Sept.

1,920 

2,010 

1,930 

1,960 

1,960

2,190 

2,090 

2,190 

2,300 

2,370

2,570 

2,760 

2,710 

3,140 

3,430

3,530 

3,620 

3,700 

3,420 

2,850

2,570 

2,560 

2,530 

2,570 

2,620

2,400 

2,440 

2,250 

3,450 

3,890

Runoff in 

acre-feet

174,700 

204,400 

185,600

6,291,000

187,700 

187,000 

243,000 

615,100 

1,289,000 

1,910,000 

907,900 

224,200 

158,500

6,287,000"

17 (3 p.m. ,1 26,200

sec.-ft.; May 30 (4 p.m.; 27,600 sec.-ft.) June 20 (4 p.m.) 53,800 sec.-ft.

* Winter discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basis of records for station at Kite.

Note.- Stage-discharge relation affected by ice Dec. 24, 25, Jan. 3 to Mar. 9 (no gage-height record for part of period).

939921 O - 51 - 3
24 COLORADO RIVER MAIN STEM 

Colorado River at Hlte, Utah

Location.- Water-stage recorder, lat. 37°50', long. 110°30', in sec. 35, T. 34 S., R. 13 

E. , at Hite, a quarter of a mile upstream from Trachy.te Creek, 1 mile downstream from 

White Canyon, 8 miles downstream from Dirty Devil River, and 84 miles upstream from 

San Juan River.

Drainage area.- 76,600 square miles.

Records available.- August 1947 to September 1949.

Extremes.- Maximum discharge during year, 88,200 second-feet June 21 (gage height, 15.67 

1'eet); minimum not determined, occurred during period of no gage-height record when 

water was below intake.

1947-49: Maximum discharge, that of June 21, 1949; minimum recorded, 2,580 secondfeet Sept. 13, 1948 (gage height, 0.19 foot), but was probably less during period of 

no gage-height record when water was below intake.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. Records of suspended sediment loads and water temperatures for 

the water year 1949 are given in Water-Supply Paper 1163.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3,590 

3,590 

3,680 

3,660 

3,700

3,790 

3,740 

3,630 

3,780 

4,090

4,320 

4,600 

4,440 

4,180 

4,010

3,900 

3,980 

4,060 

4,090 

4,050

4,040 

4,020 

4,180 

4,120 

4,270

4,270 

4,360 

5,080 

5,240 

5,310 

6,610

Nov.

6,630 

5,880 

5,610 

5,380 

5,240

5,080 

5,190 

5,310 

5,340 

5,400

5,290 

5,280 

5,280 

5,190 

5,360

5,520 

5,380 

5,360 

5,100 

5,010

5,330 

5,410 

5,190 

5,120 

5,480

5,240 

5,120 

5,360 

5,220 

4,880

Dec.

4,110 

4,160 

4,200 

3,900 

3,900

4,140 

4,020 

4,110 

3,940 

3,620

3,640 

3,810 

4,380 

4,890 

5,030

5,480 

5,610 

5,540 

5,380 

5,430

5,260 

5,260 

5,500 

5,240 

5,060

4,560 

4,550 

4,120 

3,980 

4,060 

3,760

Jan.

3,490 

3,360 

*3,570 

3,320 

a2,900

a2,700 

a2,800 

*b2,900 

b2,950 

2,900

3,060 

*3,780 

4,640 

5,260 

5,430

5,410 

5,570 

5,900 

5 ,'400 

4,690

4,240 

4,010 

4,220 

4,380 

4,940

5,470 

5,590 

5,470 

5,150 

4,890 

5,130

Feb.

,770 

,550 

,110 

,790 

,040

,060 

,110 

,450 

,790 

,740

,660 

,740 

,840 

,710 

,960

,290 

,310 

,100 

,810 

,520

,610 

,880 

,120 

,500 

,880

,510 

,040 

,710

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49. ......................

Mar.

7,750 

7,890 

8,120 

7,820 

7,840

7,800 

8,090 

8,050 

8,320 

7,980

7,340 

6,840 

6,610 

6,570 

6,780

6,860 

7,150 

7,710 

8,090 

10,900

12,100 

12,000 

10,300 

10,200 

10,100

9,850 

9,800 

9,280 

9,080 

9,100 

9,490

Apr.

10,000 

10,100

9,360 

8,610 

8,120

7,930 

7,800 

7,510 

7,620 

8,590

9,850 

11,200 

12,500 

15,400 

14,800

14,800 

15,000 

15,200 

17,000 

28,400

18,700 

19,200 

20,900 

23,200 

26,600

29,700 

32,500 

34,400 

35,700 

35,700

Secondfoot-days

130,380 

160,180 

140,640

5,275,720

133,520 

139,600 

265,810 

506,390 

1,224,500 

1,742,200 

801,900 

216,790 

149,080

5,610,990

May

38,500 

39,900 

37,800 

36,300 

37,700

40,000 

38, £00 

38,200 

37,900 

32,800

28,600 

27,200 

30,600 

33,400 

35,600

37,900 

43,000 

46 , 000 

46,500 

47,700

47,300 

45,400 

44,100 

41,500 

39,300

37,800 

38,700 

40,300 

42,700 

45 , 400 

48 , 200

Maximum

6,610 

6,630 

5,610

78,800

5,900 

7,710 

12,100 

35,700 

48,200 

87,200 

44,900 

11,000 

6,630

87,200

June

49,200 

49,800 

46,800 

44,100 

41,100

40,400 

41,300 

41,900 

42,700 

44,400

47,200 

49,600 

54,300 

60,000 

64,000

 67,400 

67,900 

69,700 

72,800 

80,300

87,200 

81,800 

77,600 

72,100 

68,400

68 , 000 

59,900 

53,800 

50,500 

48 , 000

July

44,900 

41,400 

38,400 

38,000 

40,000

40,700 

39,000 

37,400 

36,400 

34,000

33,100 

32,600 

31,200 

27,700 

25,000

23 , 000 

21,400 

19,800 

18,600 

17,500

16,500 

15,900 

15,700 

15,200 

14,300

14,200 

14,000 

14,600 

15,000 

14,000 

12,400

Minimum

3,590 

4,880 

3,620

2,590

2,700 

3,790 

6,570 

7,510 

27,200 

40,400 

12,400 

4,640 

3,740

2,700

Aug.

11,000 

9,960 

9,330 

8,880 

8,120

8,070 

7,730 

7,580 

7,470 

7,490

8,710 

9,880 

8,980 

8,470 

7,730

7,300 

6,840 

6,250 

6,020 

5,560

5,400 

5,280 

5,220 

5,030 

4,940

5,000 

5,120 

4,840 

4,940 

5,010 

4,640

Mean

4,206 

5,339 

4,537

14,410

4,307 

4,986 

8,575 

16,880 

39,500 

58,070 

25,870 

6,993 

4,969

15,370

Sept.

4,440 

4,180 

3,900 

3,830 

3,830

3,740 

4,110 

4,520 

4,560 

4,520

4,610 

4,520 

4,720 

5,220 

5,280

5,630 

6,110 

6,310 

6,330 

6,630

6,510 

5,680 

5,130 

5,030 

4,930

4,860 

4,880 

4,810 

4,760 

5,500

Runoff in 

acre-feet

258 , 600 

317,700 

279,000

104460,000

264,800 

276,900 

527,200 

1,004,000 

2,429,000 

3,456,05C 

1,591,000 

430,000 

295,700

11,130,000

Peak discharge (base. 40,000 sec.-ft.).- May 2 (1:30 p.m.) 40,700 sec.-ft.; May 21 (l:30 a.m.) 

48,900 sec.-ft.; June 21 (5:30 a.m.) 88,200 sec.-ft.

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of weather records, engineer's notes, and records for Colorado River near Cisco, Utah, at Lees Ferry, Ariz., and Green River as Greenriver, Utah.

b Stage-discharge relation affected by ice.
COLORADO RIVER MAIN STEM 25

Colorado River at Lees Perry, Ariz.

Location.- Water-stage recorder, lat. 36°51'45", long. Ill"36"15", in NE^SE^ sec. 13, T. 40 

N., R. 7 E., at head of Marble Gorge at Lees Ferry, just upstream from Paria River, 28 

miles downstream from Utah-Arizona State line, 61.5 miles upstream from Little Colorado 

River, and 79 miles downstream from San Juan River. Datum of gage is 3,106.16 feet 

above mean sea level, datum of 1929.

Drainage area.- 107,900 square miles.

Records available.- June 1921 to September 1949. Also calendar year estimates 1895-1910, 

and monthly estimates January 1911 to May 1921, published in Water-Supply Paper 918 

(estimates for 1898, 1899, 1912, 1913 supersede figures published in Water-Supply Paper 

556).

Average discharge.- 28 years (1921-49), 17,490 second-feet'.

Extremes.- Maximum discharge during year, 119,000 second-feet June 22 (gage height, 20.0 

reet) ; minimum, 1,270 second-feet Jan. 8 (gage height, 5.07 feet).

1921-49: MaxJmum discharge, 220,000 second-feet June 18, 1921 (gage height, 26.5 

feet, from floodmarks), from rating curve extended above 120,000 second-feet on basis of 

rating curve for station near Grand Canyon; minimum, 750 second-feet Dec. 27, 1924 (gage 

height, 4.2 feet).

Maximum discharge known, about 300,000 second-feet July 7, 1884 (gage height, 31.5 

feet, present site and datum, from floodmark at mouth of Paria River), from rating curve 

extended above 120,000 second-feet, verified at 220,000 second-feet by comparison with 

rating curve for station near Grand Canyon.

Remarks.- Records excellent except those for periods of ice effect or fragmentary gageheight record, which are fair. Diversions above station for irrigation. Records of 

chemical analyses, water temperatures, and suspended sediment loads for the water year 

1949 are given in Water-Supply Paper 1163.

Revisions (water years).- W 859: 1921-23. (See also Records available.)

Discharge, In second-feet, water year October 1946 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

6,050 

5,260 

5,120 

4,820 

4,860

4,970 

4,740 

4,690 

4,720 

4,640

4,520 

4,740 

5,020 

5,320 

5,430

5,210 

4,990 

4,920 

4,820 

4,920

4,920 

4,970 

5,020 

5,120 

5,290

5,350 

5,230 

5,210 

5,460 

8,540 

11,800

Nov.

11,400 

13,000 

9,800 

8,210 

6,980

6,700 

6,670 

6,440 

6,180 

6,310

6,150 

6,120 

6,340 

6,280 

6,310

6,210 

6,340 

6,570 

6,470 

6,280

5,960 

5,750 

5,900 

6,050 

5,960

5,900 

6,440 

6,410 

6,120 

6,240

Dec.

6,180 

5,900 

5,100 

4,820 

5,100

4,860 

4,660 

4,760 

4,760 

4,790

4,860 

4,720 

4,520 

4,660 

4,990

5,630 

5,960 

6,150 

6,500 

6,440

6,310 

6,440 

6,470 

6,870 

7,490

7,180 

6,470 

5,780 

5,720 

5,550 

5,180

Jan.

*4,970 

4,740 

b4,290 

b3,970 

f3,280

f2,730 

f2,150 

bl,510 

bl,530 

*b2,570

*b3,530 

b3,680 

*4,600 

8,*90 

9,390

9,520 

8,240 

f7,840 

f7,420 

7,110

6,700 

5,990 

5,400 

5,260 

5,600

6,050 

6,440 

7,040 

7,110 

6,980 

5,900

Feb.

5,210 

5,520 

5,370 

5,100 

5,050

4,840 

4,860 

4,720 

5,320 

5,460

6,240 

5,930 

5,690 

5,660 

5,580

5,310 

5,660 

6,120 

6,280 

6,120

6,500 

6,310 

6,670 

7,740 

9,360

10,800 

12,500 

11,500

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

11,000 

11,000 

10,600 

10,500 

10,200

9,930 

10,300 

10,600 

11,700 

11,500

11,400 

10,400 

9,280 

8,930 

9,160

9,120 

9,080 

9,400 

10,300 

11,000

12,700 

16,700 

16,700 

14,600 

13,800

13,400 

13,200 

12,800 

12,500 

12,200 

12,100

Apr.

12,200 

12,400 

13,000 

12,400 

11,400

f 10, 500 

f!0,300 

flO,900 

11,300 

11,800

13,300 

14,500 

14,900 

15,800 

20,900

21,500 

22,100 

22,300 

22,900 

25,100

26,200 

25,600 

25,900 

28,000 

31,500

35,700 

40,100 

43,700 

46,000 

46,900

Secondfoot-days

166,670 

205,490 

174,820

6,495,450

170,020 

181,920 

356,100 

659,100 

1,562,000 

2,228,000 

1,077,300 

290,310 

158,030

7,229,760

May

46,900 

50,800 

51,500 

48,600 

47,700

50,100 

51,400 

49,300 

49,200 

47,100

42,100 

38 , 800 

39,800 

44,600 

46,800

47,800 

49,800 

55,700 

59,100 

58 , 200

57,600 

56,900 

56,500 

53,500 

50,000

47,900 

47,600 

48,800 

51,900 

56 , 200 

59,800

Maximum

11,800 

13,000 

7,490

91,800

9,520 

12,500 

16,700 

46,900 

59,800 

115,300 

62,100 

15,700 

6,370

115,300

June

61,900 

62,500 

61,600 

59,800 

55,400

53,600 

53,600 

54,200 

54,500 

54,200

55,700 

57,900 

63,300 

69,100 

74,100

79,400 

81,000 

84,100 

93,500 

101,000

111,400 

115,300 

104,200 

95,200 

89,700

87,300 

84,500 

75,200 

69,600 

65,200

July

62,100 

57,700 

53,700 

52,300 

51,000

52,000 

51,500 

49,800 

46,900 

45,800

44,000 

43,200 

42,100 

40,700 

35,800

32,600 

29,400 

26,700 

24,400 

22,500

21,100 

20,100 

19,600 

19,400 

18,900

19,400 

18,800 

20,800 

18,700 

18,900 

17,400

Minimum

4,520 

5,750 

4,520

2,780

1,510 

4,720 

8,930 

10,300 

38,800 

53,600 

17,400 

5,460 

4,150

1,510

Aug.

15,700 

14,100 

13,000 

11,800 

10,700

10,400 

9,400 

10,300 

11,800 

11,200

13,000 

11,700 

12,400 

12,300 

10,700

9,930 

9,120 

8,510 

7,950 

7,420

7,080 

6,870 

6,600 

6,570 

6,980

5,990 

5,840 

5,870 

5,870 

5,750 

5,460

Mean

5,376 

6,850 

5,639

17,750

5,485 

6,497 

11,490 

21,970 

50,390 

74,270 

34,750 

9,365 

5,268

19,810

Sept.

5,520 

5,290 

5,020 

4,820 

4,490

4,270 

4,150 

4,170 

4,170 

4,640

5,520 

5,520 

4,620 

5,490 

5,230

5,150 

5,350 

5,780 

6,210 

6,370

6,370 

6,E80 

6,310 

6,120 

5,550

5,210 

5,100 

5,070 

5,120 

5,120

Runoff In 

acre-feet

330,600 

407,600 

346,800

12,880,000

337,200 

360,800 

706,300 

1,307,000 

3,098,000 

4,419,000 

2,137,000 

575,800 

313,400

14,340,000

Peak discharge (base. 40,000 see -ft.).- May 2 (3 p.m.) 52,700 sec.-ft.; May 19 (11:30 a.m.) 60,600 

sec.-ft.; June 1 (11:30 p.m.) 63,700 sec.-ft.; June 22 (2 a.m.) 119,000 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
26 COLORADO RIVER MAIN STEM

Transmountain diversions from Colorado River Basin above Lees Ferry

In Colorado, the following twenty-one tunnels or ditches, which are equipped with waterstage recorders, are the total transmountain diversions from the Colorado River Basin. 

Records furnished by State engineer.

Grand River ditch diverts water from tributaries of Colorado River to Long Draw (tributary of Cache la Poudre River) in the Platte River Basin. Two collection ditches from 

head gates in sec. 34, T. 5 N., R. 76 W., and sec. 29, T. 6 N., R. 75 W., intercept all 

tributaries upstream on each side of the Colorado River and converge at La Poudre Pass.

Eureka ditch diverts water from right bank of Tonahutu Creek, in sec. 7, T. 4 N., R. 

74 W., to Big Thompson River in the Platte River Basin.

Alva 3. Adams tunnel diverts water from Shadow Mountain Reservoir in sec. 4, T. 3 N., 

R. 75 W., to Wind River (tributary of Big Thompson River) in the Platte River Basin. For 

daily discharge, see page 16,

Berthoud Pass ditch diverts water from tributaries of Eraser River between the head 

gate, in sec. 34, T. 23., R. 75 W., and Berthoud Pass, to West Fork Clear Creek in the 

Platte River Basin.

Moffat Water tunnel diverts water from tributaries of Fraser River to South Boulder 

Creek in the Platte River Basin by means of three collection ditches extending from the 

tunnel portal to right bank of Vasquez Creek in see. 18, T. 23., R. 85 W., right bank of 

Praser River in sec. 14, T. 23., R. 75 W., left bank of Middle Ranch Creek in sec. 25, 

T. 1S.,R. 75 W., and intercepting intermediate tributaries (additional collection 

ditches to be constructed).

Jones Pass tunnel diverts water from tributaries of Williams River between the head 

gate on right bank of Bobtail Creek in sec. 28, T. 3 S., R. 76 W., and head gate on left 

bank of McQueary Creek in sec. 16, T. 3 S., R. 76 W., to West Fork Clear Creek in the 

Platte River Basin.

Boreas Pass ditch diverts water from tributaries of Blue River between the head gate 

in sec. 26, T. 7 S., R. 77 W., and Boreas Pass, to Tarryall Creek in the Platte River 

Basin (not operated at present).

Premont Pass ditch diverts water from tributaries of Tenmile Creek in sec. 2 and sec. 

3, T. 83., R. 79 W., to East Pork Arkansas River.

Columbine ditch diverts water from tributaries of Eagle River in sec. 6, T, 83., R. 

79 W., to East Fork Arkansas River.

Ewing ditch diverts water from left bank of Eagle River in sec. 11, T. 8 S., R. 80 W., 

to Tennessee Fork Arkansas River.

Wurtz ditch diverts water from tributaries of Eagle River between the head gate in 

sec. 32, T. 73., R. 80 W., and Tennessee Pass, to Tennessee Fork Arkansas River.

Twin Lakes tunnel diverts water from tributaries of Roaring Fork between the two head 

gates located in sec. 21, T. 11 S., R. 83 W., sec. 11, T. 11 S., R. 83 W., and west portal 

of Twin Lakes Tunnel located in sec. 24, T. 11 S., R. 83 W., to Lake Creek in Arkansas 

River Basin.

Busk Ivanhoe tunnel diverts water from Ivanhoe Lake (Fryingpan River) in sec. 13, T. 9 

S., R. 83 W., to Lake Fork Arkansas River.

Larkspur ditch diverts water from tributaries of Tomichi Creek between Marshall Pass 

and the two head gates located in sec. 11, T. 48 N., R'. 6 E. , and sec. 1, T. 47 N., R. 6 

E., to South Fork Arkansas River.

Tarbell ditch diverts water from a tributary of Cochetopa Creek in sec. 12, T. 43 N., 

R. IE., to tributary of Saguache Creek in the Rio Grande Basin.

Tabor ditch diverts water from Cebolla Creek in sec. 27, T. 43 N., R. 3 W., to a tributary of Clear Creek in the Rio Grande Basin.

Treasure Pass ditch diverts water from tributaries of Wolf Creek between Wolf Creek 

Pass and the two head gates located in sec. 31, T. 38 N., R. 2 E,, and sec. 6, T. 37 N., 

R. 2 E., to a tributary of South Fork in the Rio Grande Basin.

Piedra Pass ditch (Harley Fuchs ditches 1 and 2) diverts water from tributaries of 

Piedra River between Piedra Pass and the two head gates located in NW-J- sec. 4, T. 38 N. , 

R. 1 W., and SW£ sec. 33, T. 39 N., R. 1 W., to South River in the Rio Grande Basin.

Squaw Pass ditch diverts water from Williams Creek in sec. 13, T. 39 N., R. 3 W., to 

a tributary of Rio Grande (additional collection ditches to be constructed).

Fuchs ditch diverts wate^ from North Pork Los Pinos River in sec. 3, T. 39 N., R. 4 W. , 

to Weminuche Creek in the Rio Grande Basin.

Raber-Lohr ditch diverts water from Rincon la Vaca Creek (tributary of Los Pirios River) 

in sec. 5, T. 39 N., R. 4 W., to Weminuche Creek in the Rio Grande Basin.

The following ditch is a transmountain diversion from the Green River Basin in Wyoming.

Continental Divide ditch diverts water from Little Sandy Creek in sec. 25, T. 30 N., 

R. 104 W., to land along Lander Creek (tributary to Sweetwater River in Platte River 

Basin). The appropriation permit is for 13.76 second-feet, but no discharge record is 

available.
COLORADO RIVER MAIN STEM 

Transmountain diversions from Colorado River Basin above Lees Ferry Continued

In Utah there are 17 transmountain diversions from the Colorado River Basin to the 

Great Bafin and one from the Great Basin Basin to the Colorado River Basin. Records have 

been collected on only the following one of these diversions.

Strawberry tunnel whose west portal is in sec. 34, T. 73., R. 6 E., diverts water 

from btrawberry Reservoir uii Strawberry River to Diamond Fork in the Jordan River Basin. 

Records furnished by Spanis. Fork Water Users Association and include tunnel seepage.

There are no transmountain diversions from the d. 

in the States of New Mexico and Arizona.

lurado River Basin above Lees Ferry

Transmountain diversions, in acre-feet, water year October 1948 to September 1949

Month

September. ..........

Water year 1948-49

Month

April

September. ..........

Water year 1948-49

Month

April

September. ..........

Water year 1948-49

Grand 

River 

ditch

360

17,190

Columbine 

ditch

0

0

0

0

0

0

0

Treasure 

Pass 

ctiteh

0

0

0

Eureka 

ditch

3

91

Ewing 

ditch

0

69

1,340

Piedra 

Pass 

ditch

0

0

0

0

0

0

0

Alva B. 

Adams 

tunnel

993

£37

1,080

17,480

Wurtz 

ditch

0

2,690

Squaw 

Pass 

ditch

0

0

0

0

0

0

0

0

Berthdud 

Pass 

ditch

0

319

0

327

Twin 

Lakes 

tunnel

335

38,190

Fuchs 

ditch

0

90

Moffat 

Water 

tunnel

1,810

24,660

Busk 

Ivanhoe 

tunnel

1Z7

4,300

RaberLohr 

ditch

0

0

0

0

0

0

255

114

422

Jones 

Pass 

tunnel

293

1,890

Larkspur 

ditch

0

360

Total 

in 

Colorado

394

4,190

109,100

Boreas 

Pass 

ditch

0

0

Tarbell 

ditch

0

0

Strawberry 

tunnel 

in Utah

950

8,230

63,270

Fremont 

Pass 

ditch

0

0

Tabor 

ditch

0

0
Location.- Two water-stage recorders, lat. 36°05'E5", lung. 112°Q5'30", at Kaibfib Hr'i;v , 

a quarter of a mile upstream from Bright Angel Creek, 11 niles by trail ncr* h-^h 1- - ?. 

Grand Canyon, Coconino County, 26 miles downstream from_Little Colored'- Ri'/nr. mil ' 

miles upstream from Hoover Dam. Daturr, i " gages is 2,418.7 feet ^inrve rienn Ft-^ it /-] , 

preliminary datum of 1929.

Drainage area.- 137,800 square miles.

Extremes. - Maximum discharge during year, 111,900 second-feet June 22 (gage height, 

feet) ; minimum daily, 2,000 second-feet Jan. 9, 10, on basi? of record fur stati 

Lees Ferry.

1922-49: Maximum discharge, 127,000 second-feet July 2, 1°27 (gsge height, ' >-' 

feet); minimum, 700 second-feet Dec. 28, 1924 (gage height, -0.70 fco<-;

Maximum discharge known, 300,000 second-feet about July 8, 1384 (comf.itea un t 

of flood studies at Lees Ferry). Crest discharge of flood of June 19, 1^21, 220,

second-feet (gage height, 37.5 feet, frDm f loodmarks ) 

120,000 second-feet by logarithmic plotting.

from rating

Remarks.- Records excellent except those for period of no gage-height record, which are

r. Diversions above station for irrigation. h^mica^ analyses, water

temperatures, and suspende sediment loads for th ear 1^4? are given in WaterSupply Paper 1163.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6,460 

6,670 

5,670 

5,450 

5,060

5,110 

5,180 

4,930 

4,850 

4,900

4,830 

4,690 

4,930 

5,240 

5,460

5,560 

5,330 

5,120 

4,940 

4,850

5,010 

5.120 

5,190 

5,240 

5,370

5.540 

5,500 

5,410 

5,490 

6,000 

10.400

Nov.

10,700 

12,900 

12,400 

9,540 

8,300

7,390 

6,980 

6,920 

6,720

6,670

6,660 

6,630 

6,600 

6,550 

6,480

6,520 

6,410 

6,550 

6,830 

6,700

6,730 

6,380 

6,240 

6,490 

6,600

6,440 

6,280 

6,600 

6,510 

6,310

Dec.

6,480 

6,450 

6,040 

5,380 

5,110

5,330 

5,070 

4,970 

5,100 

5.140

5,150 

5,190 

4,890 

4,750 

4,860

5.240 

5,980 

6,280 

6,490 

6,790

6,690 

6,530 

6,670 

6,660 

7,080

7,630 

7,130 

6,670 

6,080 

6,010 

6,010

Jan.

6,070 

5,690 

5,290 

4,890 

4,380

3,750 

a3,200 

a2,600 

a2,000 

a2,000

a2,800 

3,970 

3,940 

5,010 

8,910

10,100 

10,100 

8,440 

7 ,540 

7,390

7,450 

7,100 

6.620 

6,180 

5,980

6,210 

6.580 

7,000 

7,440 

7,450 

7,000

Feb.

6,350 

5,710 

5,820 

5,670 

5,380

5,200 

4,790 

4,880 

5,180 

5,550

5,530 

5,770 

5,840 

5,710 

5,850

5.970 

6,090 

6,230

6,670 

6,880

6,740 

6,760 

6,650 

7,120 

8,360

11.200 

12,900 

13,900

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

12,300 

11,900 

11,700 

11,300 

11,100

10,700 

10,700 

11,300 

12,100 

13,400

13,600 

12,700 

11,500 

10,700 

10,800

11,000 

10,800 

11,300 

12,200 

13.500

14 , 200

17, 300 

19.200 

10,000 

15,900

14,800 

14,300 

13,700 

13,500 

12,900 

12,800

Apr.

IE, 900 

13,500 

13,500 

14,100 

12,700

11.500 

10,800 

10,900 

11,600 

1?,900

13,900 

16,300 

16.000 

17,000

19,500

23,800 

23,800 

24,100 

24,200

25,100

26,800 

27,200 

26,600 

27,500 

30,000

34,600 

39,100 

42,600 

45,000 

46,400

Secondfoot-days

169, 

219,

500 

030

850

6,559,480

183,080 

188,700 

401,200 

673,900 

1,491,700 

2,169,300 

1,072,700 

318,640 

171,560

7,243,160

May

45,600 

47,900 

50,200 

48,700 

45,900

47,100 

49,200 

48,200 

45,900 

45,600

42,200 

38,100 

36,900 

40,600 

43,600

45,600 

46,000 

50,800 

56,000 

56,100

55,900 

54,800 

53,700 

52,500 

48,900

46,500 

45,200 

46,500 

48,600 

52,500 

56,400

Maximum

10,400 

12,900 

7,630

88,400

10,100 

13,900 

19,200 

46,400 

56,400 

110,400 

61,000 

20,000 

7,070

110,400

June

59,100

60,400 

60,200 

58,700 

56,600

52,000 

51,700 

51,700 

52,000 

52,000

53 , 000 

54,500 

58,600 

64,500 

71 ,000

76,900 

80,000 

81,800 

89,800 

96,000

102,900 

110,400 

103,800 

96,500 

90,900

87,000 

86,200 

77,200 

70,100 

64,800

July

61,000 

57,400 

52,900 

50,800 

49,000

49,300 

49,800 

48,400 

46,100 

44,500

43,100 

41,600 

41.000 

40,500 

36,200

33,400 

30,500 

27,800 

25,700 

23,700

22,100 

21,000 

20,000 

19,700 

20,000

20,400 

19.600 

20,300 

20,000 

18,600 

18,300

Minimum

4,690 

6,240 

4,750

2,960

2,000 

4,790 

10,700 

10,800 

36,900 

51,700 

18,300 

5,790 

4,400

2,000

Aug.

16, SCO 

Ib , 200 

13,900 

12,800 

11,700

11,200 

10,700 

10,000 

11,900 

20.000

15.600 

14,300 

12.300 

12,800 

11,900

10,600 

9,760 

8,930 

8,420

7,880

7,360 

7,110 

7,000 

6,770 

6,770

7,100 

6,190 

5,990 

5,950 

5,920 

5,790

Mean

5,468 

7,301 

5,931

17.920

5,906 

6,739 

12,940 

22,460 

48,120 

72,310 

34,600 

10,280 

5,719

19,840

Sept.

5,570 

5,660 

5,400 

5,140 

4,960

4,700 

4,480 

4,400 

4,450 

4,590

5,220 

5,880 

6,440 

5,400 

6,080

7,070 

6,060 

6.010 

6,380 

6,680

6.870 

6,690 

6,660 

6,630 

6,280

5,790 

5,450 

5,390 

5,440 

5,790

Runoff In 

acre-feet

336,200 

434,400 

364,700

13,010,000

363,100 

374,300 

795,800 

1,337,000 

2,959,000 

4,303,000 

2,128,000 

632,000 

340,300

14,370,000

Peak discharge (base. 40,000 sec.-ft.).- May 3 (3 a.m.) 50,800 sec.-ft.; May 19 (11:30 p.m.) 57,500

sec.-ft.; June 2 (10 a.m.J 61,ZOO sec.-ft.; June 22 (2 p.m.) 111,900 sec.-ft.

a No gage-height record; discharge computed on basis of records for station at Lees Ferry.
COLORADO RIVER MAIN STEM 29

Lake Mead at Hoover Dam, Ariz.-Nev.

Location.- Water-stage indicator, lat. 36°00'59", long. 114°44'10", in SW^ sec. 3, T. 30 

M -' K - 23 W. Gila and Salt River meridian, in center of Hoover Dam on Colorado River. 

Datum of gage is mean sea level, Power-House datum, which is datum in use locally and 

originally based on adjustment of 1912; or 0.55 foot above mean sea level, datum of 

1929, levels of 1935; or 0.43 foot above mean sea level, datum of 1929, levels of 1940.

Drainage area.- 167,800 square miles.

Records available.- February 1935 to September 1949.

Extremes.- Maximum contents during year, 24,202,000 acre-feet July 31 (gage height

T7T9T761 feet); minimum, 17,544,000 acre-feet Ap.-. ib, 16 (gage height, 1,145.50 feet).

1935-49: Maximum contents, 27,790,000 acre-feet July 29, 30, 1941 (gage height, 

1,220.45 feet); minimum (since 1940), 16,218,000 acre-feet Apr. 25, 1947, (gage height, 

1,133.91 feet).

Rema-rks.- Reservoir is formed by concrete arch-gravity type dam; storage began Feb 1 

19357 dam completed Mar. 1, 1936. Total capacity, 32,359,000 acre-feet, consisting of 

the following: dead storage, 3,207,000 acre-feet below gage height 895.0 feet (gate 

sills in outlet towers); usable contents, 27,935,000 acre-feet between gage heights 

895.0 and 1,221.4 feet (top of automatic spillway gates in raised position); and uncontrolled storage, 1,217,000 acre-feet between gage heights 1,221.4 and 1,229.0 feet 

Reservoir is used to store water for irrigation, municipal water supply, power development, and for flood control. Figures given herein represent usable contents.

Cooperation.- Records collected and prepared in cooperation with Bureau of Reclamation. 

Revisions (water years).- W 899: 1935-39.

Usable contents at 12 p.m. In thousands of acre-feet, water year October 1948 to September 1949

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

21,971

21,953

21,944

21,924

21,897

21,868

21,843

21,817

21,801

21,794

21,770

21,744

21,715

21,685

21,662

21,649

21,631

21,606

21,582

21,557

21,532

21,503

21,492

21,483

21,458

21,435

21,404

21,382

21,356

21,348

21,342

Nov.

21,319

21,305

21,287

21,270

21,252

21,236

21,226

21,197

21,168

21,140

21,116

21,088

21,072

21,064

21,036

21,010

20,985

20,953

20,921

20,909

20,897

20,868

20,841

20,812

20,807

20,776

20,755

20,739

20,715

20,687

-

Dec.

20,651

20,624

20,606

20,576

20,563

20,525

20,507

20,463

20,433

20,402

20,377

20,366

20,331

20,294

20,263

20,230

20,201

20,177

20,164

20,135

20,112

20,088

20,063

20,042

20,036

20,033

20,007

19,982

19,953

19,923

19,908

Jan.

19,893

19,877

19,843

19,806

19,771

19,738

19,702

19,672

19,655

19,613

19,577

19,550

19,514

19,473

19,460

19,437

19,415

19,391

19,371

19,341

19,316

19,287

19,278

19,256

19,229

19,192

19,156

19,132

19,101

19,082

19,054

Feb.

19,022

18,988

18,951

18,920

18,889

18,865

18,830

18,795

18,757

18,721

18,675

18,653

18,625

18,590

18,563

18,527

18,496

18,464

18,434,

18,404

18,382

18,349

18,319

18,285

18,250

18,219

18,208

18,196

-

_

-

Mar.

18,178

18,163

18,147

18,121

18,115

18,108

18,084

18,065

18,037

18,014

17,998

17,992

17,992

17,974

17,950

17,923

17,903

17,878

17.85Z

17,852

17,839

17,817

17,805

17,802

17,790

17,788

17,787

17,774

17,761

17,749

17,735

Apr.

17,719

17,708

17,709

17,699

17,685

17,667

17,650

17,634

17,617

17,617

17,601

17,581

17,572

17,555

17,544

17,544

17,568

17,574

17,581

17,591

17,599

17,612

17,635

17,668

17,682

17,697

17,726

17,761

17,806

17,872

May

17,946

17,997

18,054

18,121

18,178

18,238

18,307

18,385

18,450

18,553

18,565

18,612

18,653

18,698

18,761

18,822

18,877

18,936

19,008

19,085

19., 169

19,264

19,339

19,407

19,476

19,538

19,590

19 , 647

19,718

19,794

19,865

June

19,945

20,021

20,112

20, 200

20,306

20,388

20,447

20,521

20,595

20,663

20,725

20,824

20,895

20,981

21,069

21,170

21,282

21,409

21,546

21,694

21,849

22,019

22,192

22,360

22,510

22,662

22,799

22,922

23,038

23,135

July

23,227

23,322

23,409

23,491

23,556

23,610

23,660

23,716

23, 783

23,853

23,903

23,943

23,985

24,025

24,057

24,093

24,131

24,147

24,156

24,164

24,167

24,170

24,177

24,190

24,192

24,187

24,186

24,183

24,182

24,185

24,202

Aug.

24,196

24,197

24,183

24,173

24,157

24,147

24,146

24,129

24,104

24,086

24,080

24,072

24,064

24,064

24,047

24, 033

24,016

23,993

23,964

23,957

23,948

23,926

23,905

23,879

23,850

23,826

23,807

23,797

23,769

23,740

23,711

Sept.

23,680

23,649

23,628

23,611

23,598

23,570

23,533

23,501

23,461

23,429

23,406

23,373

23,342

23,310

23,279

23,245

23,222

23,201

23,171

23,135

23,105

23,073

23,039

23,010

22,987

22,958

22,926

22,893

22,860

22,827

Monthly gage height and contents, water year October 1948 to September 1949

Date

Dec. 31. ................

Calendar year 1948....

Feb. 28. ................

Mar. 31. ................

July 31.. ...............

Water year 1948-49....

Gage height 

(feet)t

,164.85

-

,148.28

-

Contents 

(acre-feet)

19,908,000

-

-

Change in contents 

during month 

(acre-feet)

-779,000

-737,000

+825,000

t Gage height at 12 p.
30 COLORADO RIVER MAIN STEM

Colorado River below Hoover Dam, Ariz.-Nev.

Location.- Water-stage recorder, lat. 36°00'15", long. 114°44'35", in SW^NE^ sec. 10, T.

 30 N., R. 23 W. Gila and Salt River meridian, or NW^-NE^ sec. 32, T. 22 S., R. 65 E. 

Mount Diablo meridian, 1 mile downstream from Hoover Dam. Datum of gage is 599.96 

feet above mean sea level, datum of 1929, used locally as 600.00 feet as originally 

determined.

Drainage area.- 167,800 square miles at Hoover Dam.

Records available.- April 1934 to September 1949. Record of diversions to Henderson area 

(lu miles northwest of Boulder City, Nev.), April 1942 to September 1949.

Average discharge.- 15 years (1934-49), 14,480 second-feet (not adjusted for storage in 

Laice Mead),

Extremes.- Maximum discharge during year, 31,500 second-feet Apr. 14 (gage height, 50.67 

feet); minimum, 4,210 second-feet Oct. 3 (gage height, 39.90 feet); minimum daily, 

7,490 second-feet Oct. 31.

1935-49: Maximum discharge, 51,200 second-feet Feb. 13, 1939 (gage height, 54.96 

feet); no flow Feb. 10, 1-935.

Remarks.- Records excellent. Flow completely segulated by Hoover Dam since Feb. 1, 1935 

(see preceding page). Diversions above Hoover Dam for irrigation and industrial uses. 

Diversion by pumping from Lake Mead 6 miles above Hoover Dam to Henderson, Nev., area 

(10 miles northwest of Boulder Cit^y) for municipal and industrial use began Apr. 7, 

1942. Records of chemical analyses and water temperatures for the water year 1949 

are given in Water-Supply Paper 1163.

Cooperation.- operat Record of diversions to Henderson, Nev., area furnished by Bureau of Reclamatlon.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18,700 

13,800 

8,710 

17,100 

17,100

17,300 

17,200 

17,000 

12,300 

8,150

16,200 

16,700 

17,700 

18,000 

17,400

11,800 

9,900 

16,500 

17,200 

17,500

17,300 

16,700 

11,500 

8,2OO 

16,700

17,600 

18,OOO 

16,200 

15,900 

10,500 

7,490

Nor.

16,200 

17,700 

19,400 

18,700 

18,500

15,000 

12,300 

19,600 

20,200 

20,300

17,400 

19,300 

14,300 

10,400 

18,700

20,OOO 

19,600 

19,200 

19,100 

14,100

12,100 

19,000 

19,800 

19,400 

10,400

18,900 

16,500 

12,400 

19,600 

20,200

Dec.

20,800 

19,600 

2O.7OO 

15,700 

12,400

20,800 

20,8OO 

19,900 

20,000 

2O,1OO

16,400 

12,6OO 

20,400 

20,500 

21,300

21 , 500 

20 , 400 

14,800 

13,400 

19,800

20,000

20,500 

19,300 

15,400 

10,900

11,200 

18,600 

2O,3OO 

21,200 

20,400 

16,900

Month

Oc 

Nc 

De

j£

Pe

Mi 

At 

He 

Jt 

Jl 

Al 

Se

jvetaber. 

 cember.

Calendar year 1948....

 ptember. ..............

Water year 1948-49....

Jan.

12,800 

12,500 

21,900 

2?., 600 

22,300

21,400 

20,900 

17,500 

14,300 

21,900

22,900 

21,700 

20,500 

20,400 

15,700

13,200 

20,900 

22,300 

22,900 

21,400

21,200 

19,000 

13,900 

20,900 

22,200

21,800 

22,OCO 

22,700 

19,100 

16,000 

22,300

Feb.

23,200 

23 , 400 

23,700 

22,800 

20,8OO

17,700 

22,200 

22,700 

22,900 

22,700

21,900 

21,100 

19,700 

21,900 

22,900

22,300 

21,100 

22,300 

20,700 

17,800

22, 200

22,000 

24,000 

24,600 

25,000

22,100 

16,500 

22,000

Second-foot 

days

462,350 

518,300 

566,600

6,579,130

611,100 

612,200 

651,100 

594,000 

517,460 

497,090 

514,200 

535,420 

575,200

6,655,020

Mar.

21,700 

22,100 

21,600 

21,900 

18,300

15,700 

21,600 

23,100 

23,900 

2o,400

22,200 

17,300 

15,000 

22,300 

23,000

23,500 

23, 700 

23,300 

20,600 

14,500

21,OOO 

22,600 

22,900 

23,300 

23,200

18,600 

15,200 

20, 600 

21,000 

21,700 

22,300

Apr.

21,600 

18,300 

12,500 

20,200 

21,800

22,000 

22,200 

21,800 

16,600 

12,300

22,000 

23,100 

23, 200 

24,000 

23,600

18,900 

12,800 

21,700 

21,000 

20,900

21,400 

21,400 

16,600 

11,900 

21,600

22,200 

21,800 

20,500 

20,500 

15,600

May

11,000 

20,800 

20,900 

20,100 

18,200

17,700 

13,700 

10,300 

17,100 

17,900

18,600 

18,600 

18,400 

13,000 

9,960

17,400 

18,400 

17,000 

16,300 

18,500

14,400 

12,900 

19,600 

19,800 

19,600

f 20, 000 

f 20, 600 

f!7,300 

f 10, 600 

10,200 

18,600

June

18,700 

18,500 

18,100 

15,100 

9,390

12,100 

18,100 

18,300 

18,600 

17,900

14,600 

10,800 

17,600 

18,900 

19,000

19,400 

18,600 

13,900 

10,900 

16.2OO

17,700 

19,000 

18,500 

17,800 

15,600

12,000 

16,200 

16,500 

16,800 

17,500

Discharge In second-feet

Maximum

18,700 

20,300 

21,500

23,300

22,9OO 

25,000 

23,900 

24,000 

2O,90O 

19,400 

20,300 

19,700 

22,000

25,000

Minimum Mean

7,490 14,910 

10,4OO 17,280 

10.9OO 18,28o

7,490 17,980

12,500 19,710 

16,500 21,860 

14,500 21,000 

11,900 19,8OO 

9,960 16,690 

9,390 16,570 

10,100 16,590 

9,920 17,270 

11,200 19,170

7,490 18,230

July

17,500 

13,500 

10,700 

10,200 

17,000

18,800 

18,900 

19,200 

13,600 

10,100

17,900 

f 18, 900 

f 18, 700 

f 19 , 400 

f 20, 300

f 16, 400 

fll,900 

f 19, 000 

19,100 

19,000

19,300 

18,700 

15,200 

10,600 

17,600

f 19, 200 

f!8,100 

f 18, 900 

f 18, 800 

f 16, 100 

11,600

Runoff In 

acre -feet

917,100 

1,028,000 

1,124,000

13,050,000

1,212,000 

1,214,000 

1,291,000 

1,178,000 

1,026,000 

986,000 

1,O20,OOO 

1,062,000 

1,141,000

13,200,000

Aug.

17,500 

18,500 

18,500 

18,400 

18,500

13,200 

9,920 

17,400 

18,400 

18,800

18, 700 

18,300 

17,000 

11,100 

18,600

18,800 

18,900 

19,300

19,400 

15,300

10,800 

18,400 

19,200 

19,200 

19,600

19,700 

14,800 

10,600 

19,400 

19,700 

19,500

Sept.

19,000 

19,300 

14,900 

11,300 

11,200

19,400 

20,500 

20,800 

21,400 

19,800

15,200 

19,700 

20,800 

20,800 

20, 400

20,500 

19,000 

15,300 

20,100 

21,600

21,700 

21,400 

22,000 

19,500 

15,200

19,800 

21,200 

20,800 

21,300 

21,300

Diversions to 

Henderson 

Nev., area 

(acre-feet)

439 

3O7 

230

4,868

239 

154 

258 

418 

441 

482 

548 

573 

579

4,668

f Computed from partial record and gage height of tallrace to power plant read every 3 hours.
COLORADO RIVER MAIN STEM 31

Colorado River below Davis Dam, Ariz.-Nev.

Location. - Water-stage recorder, lat. 35" 11'30", long. 114°34'15", in SE^-NEj sec. 1, T. 

32 a., R. 66 E. Mount Diablo meridian, half a mile downstream from Davis Dam, 68 miles 

downstream from Hoover Dam, and 35 miles west of Kingman, Arlz. Datum of gage is 

500.00 feet above mean sea level, datum of 1929. Prior tu May 3, water-stage recorder 

at site half a mile downstream at same datum.

Drainage area.- 169,300 square miles. 

Records available.- March to September 1349.

Extremes.- Maximum discharge recorded during period, 26,400 second-feet Apr. 15; maximum 

gage height recorded, 16.08 feet Mar. 18, at site then in use; minimum discharge, 8,370 

second-feet May 31; minimum gage height, 10.73 feet Aug. 8.

Remarks.- Records excellent. Plow completely regulated by Hoover Dam. No regulation by 

Davls Dam which was under construction during this year. Many diversions above 

station fur irrigation and industrial uses. Average difference in water surface elevations between gage at present site and gage at site half a mile downstream used prior 

to May 3, was 0.35 foot.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Th

lendar year

e period ................................

Mar.

21,600 

21,400 

21,900 

21,400

21,600

18,700 

IS, 500 

21,200 

22,800 

23,700

23,200 

21,900 

17,700 

15,800 

21,900

22,800 

23,300 

23,600 

23,100 

21,100

15,600 

20,700 

22,400 

22,700 

23,200

22,700 

19,300 

15,500 

20,200 

20,800 

21,700

Apr.

22,000 

21,200 

18,600 

13,400 

19,800

21,900 

22,200 

22,200 

21,700 

17,100

13,100 

21/100 

23,000 

23,300 

23,500

23,200 

19,200 

13,600 

20,900 

21,400

20,800 

2i; 500 

21,400 

16,900 

12,600

20,700 

22,100 

21,200 

20,700 

20,400

Secondfoot -days

650,000 

600,700 

512,800 

490,200 

519,900 

521,100 

574,400

-

May

15,900 

11,700 

19^600 

20,600 

19,700

18,400 

17,600 

13,700 

10,700

16,400

17,800 

18,400 

18,500 

18,400 

13,300

10,100 

16,800 

18,300 

17,000 

16,400

18,300 

14,600 

12,900 

18,900 

20,000

19,700 

20,100 

20,500 

17,200 

11,100 

10,200

Maximum

23,700 

23,500 

20,600 

19,200 

20,100 

19,500 

22,000

-

June

17 , 900 

18,900 

18,200 

17,800

15,100

9,700 

16,200 

17,800 

18,000

18,400

17,900 

14,400 

10,800 

16,900 

18,600

18,700 

19,200 

18,500 

14,000 

10,800

15,100 

17,100 

18 , 500 

18,300 

17,600

15,400 

11,600 

15,800 

16,400 

16,600

July

17,000 

17.400 

13.BOQ 

10.600 

10,100

16,300 

18,700 

19,000 

19,200 

14,100

10,500 

17,500 

19,000 

19,200 

19,600

20,100 

16,600 

12,200 

18,200 

19,200

19,200 

19,400 

18,700 

15,500 

11,000

16,900 

18,900 

18 , 400 

18,700 

18,800 

,16,100

Minimum

15,500 

12,600 

10,100 

9,700 

10,100 

10,000 

11,000

-

Aug.

12,000 

16,900 

18 , 000 

18,300 

18,300

18,300 

13,300 

10,000 

16,800 

18 , 200

18,500 

18,600 

18,200 

16,900 

11,400

17,500 

18 , 400 

18,800 

19,100 

19,200

15,600 

11,000 

17,500 

19,000 

18,900

19,300 

19,300 

15,000 

10,900 

18,400 

19,500

Mean

20,970 

20,020 

16.S40 

16,340 

16,770 

16,810 

19,150

-

Sept.

19,000 

19,200 

19,300 

15,300 

11,300

11,000 

18,400 

20,500 

20,900 

21,400

19,800 

15,400 

19,700 

20,800 

20,800

20,600 

20,700 

19,100 

15,600 

20,100

21,600 

21,800 

21,400 

22,000 

19,800

15,500 

19,900 

21,400 

20,900 

21,200

Runoff in 

acre-feet

1,289,000 

1,191,000 

1,017,000 

972,300 

1,031,000 

1,034,000 

1,139,000

7,673,000

Note.- Discharge Mar. 1-15 computed on basis of records for station below Hoover Dam.
32 COLORADO RIVER MAIN STEM

Colorado River at Needles, Calif.

Location - Water-stage recorder, lat. 34°51'05", long. 114°36'25", in SE^-SE^- sec. 19, T. 

9 N., H. 23 E. San Bernardino meridian, at Needles, 18 miles upstream from gaging 

station near Topock, Ariz., 31 miles downstream from Davis Dam, and 98 miles downstream 

from Hoover Dam. Datum of gage is 466.23 feet above mean sea level, datum of 1929; 

gage readings have been reduced to elevation above mean sea level.

Drainage area.- 170,600 square miles.

Records available.- April 1931 to September 1949 (elevations only).

Extremes.- Maximum elevation during year, 474.66 feet Sept. 11; minimum, 470.57 feet

1931-49: Maximum elevation, 475.77 feet Nov. 30, 1944; minimum, 466.53 feet Oct. 2, 

1934, site then in use.

Remarks.- Flow completely regulated by Hoover Dam (see p. 30).

Elevation, In feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

473.75

473.73

473.34

472.03

472.42

473.56

473.64

473.56

473.50

473.12

471.84

472.17

473.45

473.69

473.75

473.70

473.04

471.95

472.36

473.49

473.65

473.64

473.50

472.89

471.65

472.11

473.54

473.73

473.47

473.25

472.53

Hoy.

471.32

471.74

473.38

473.83

473.71

473.49

473.09

472.43

472.83

473.48

473.31

473.08

473.04

472.67

472.10

472.78

473.40

473.17

472.96

473.06

472.58

472.29

472.96

473.36

473.24

472.46

472.83

473.10

472.63

473.09

-

Deo.

473.55

473.45

473.37

473.44

473.03

472.62

473.24

473.67

473.47

473.47

473.57

473.29

472.75

473.26

473.75

473.74

473.63

473.50

472.93

472.51

473.11

473.49

473.38

473.19

472.92

472.24

472.00

473.12

473.69

473.78

473.61

Jan.

473.39

472.85

472.47

473.25

473.50

473.37

473.25

473.27

473.15

472.91

473.57

473.82

473.64

473.56

473.62

473.23

472.65

473.25

473.57

473.51

473.43

473.40

473.41

473.05

473.41

473.80

473.73

473.65

473.57

473.25

472.94

Feb.

473.37

473.71

473.60

473.48

473.37

473.27

473.07

473.34

473.45

473.44

473.48

473.48

473.30

473.13

473.27

473.46

473.47

473.37

473.42

473.37

473.15

473.47

473.62

473.67

473.80

473.77

473.52

473.04

_

_

-

Mar.

473.28

473.41

473.42

473.44

473.49

473.35

473.16

473.60

473.92

473.94

473.93

473.82

473.51

473.29

473.81

474.07

473.92

473.94

473.87

473.62

473.22

473.52

473.97

473.92

473.89

473.92

473.62'

473.34

473.52

473.86

473.91

Apr.

474.00

474.01

473.70

473.13

473.47

474.04

474.07

474.01

473.91

473.49

472.95

473.49

474.08

473.95

473.78

473.66

473.29

472.74

473.34

473.82

473.59

473.60

473.64

473.26

472.68

473.37

473.97

473.85

473.54

473.51

-

Hay

473.11

472.55

473.10

473.85

473.78

473.67

473.51

473.15

472.63

472.84

473.55

473.59

473.54

473.57

473.13

472.37

472.69

473.55

473.32

473.11

473.22

473.12

472.69

473.24

473.80

473.68

473.52

473.60

473.39

472.67

471.-90

June

472.75

473.76

473.59

473.47

473.20

472.28

472.34

473.64

473.75

473.71

473.66

473.35

472.49

472.57

473.81

473.80

473.85

473.83

473.33

472.39

472.40

473.51

473.83

473.90

473.81

473.53

472.75

472.68

473.54

473.56

-

Jnly

473.60

473.65

473.39

472.34

471.48

472.21

473.65

473.94

473.93

473.52

472.45

472.47

473.98

474.10

474.09

474.19

473.95

473.13

472,96

474.14

474.16

474.15

474.06

473.85

47?. 83

472.68

473.85

474.08

473.89

473.96

473.75

Aug.

472.96

473.10

473.84

473.91

473.82

473.79

473.42

472.21

472.53

473.76

473.88

473.91

473.84

473.80

473.08

472.97

474.03

474.05

474.01

474.01

473.75

472.93

472.91

474.11

474.19

474.15

474.16

473.82

472.73

472.92

474.23

Sept.

474.30

474.25

474.27

473.87

472.92

472.13

472.89

474.28

474.45

474.51

474.41

473.79

473.77

474.44

474.40

474.28

474.17

474.13

473.57

473.68

474.41

474.43

474.40

474.31

474.19

473.66

473.63

474.34

474.34

474. 20
COLORADO RIVER MAIN STEM 33

Colorado River near Topock, Ariz.

Location.- Water-stage recorder, lat. 34°41'15", long. 114°27'45", in NWi see. 13, T. 15 

 N., H. 21 W. Gila and Salt River meridian, In Mohave Canyon, 3 miles downstream from 

Topock, 39.5 miles upstream from Parker Dam, and 49 miles downstream from Davis Dam 

(under construction). Datum of gage Is 423.02 feet above mean sea level, datum of 

1929. Auxiliary water-stage recorder at highway bridge at Topock, 2.7 miles upstream, 

used in determining fall.

Drainage area.- 172,300 square, miles.

Records available.- January 1917 to September 1949.

Average discharge.- 17 years (1917-34), 20,260 second-feet; 15 years (1934-49), 14,030 

second-reet (not adjusted for storage in Lake Mead).

Extremes.- Maximum daily discharge during year, 23,400 second-feet Apr. 16; maximum elevatlon, 452.74 feet May 29; minimum daily discharge, 10,100 second-feet Nov. 2; minimum 

elevation, 449.14 feet Nov. 2.

1917-34: Maximum discharge probably exceeded 200,000 second-feet June 22, 1921; 

minimum, 1,480 second-feet Aug. 17, 1934.

1934-49: Maximum discharge, 35,700 second-feet Jan. 29, 1942; maximum elevation, 

that of May 29, 1949; minimum discharge, 375 second-feet Feb. 14, 1935; minimum daily, 

422 second-feet Feb. 14, 1935.

Discharge of about 300,000 second-feet (based on determination at Lees Ferry gaging 

station) occurred about July 10, 1884. Discharge in excess of 400,000 second-feet 

(estimated) probably occurred within the period 1857-68 and most likely in 1862.

Remarks.- Records excellent. Discharge computed by using fall as determined by auxiliary 

water-stage recorder as a factor. Diversions above station for irrigation and industrial uses. Flow regulated by Hoover Dam since Feb. 1, 1935; no regulation between 

Hoover Dam and this station except for slight fluctuations caused by construction work 

at Davis Dam. Elevations given are to datum of 1929.

Revisions (water years).- W 918. 1921.

Elevation, in feet, water year October 1948 to September 1949

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

451.31

451.35

451.36

450.98

450. El

450. 27

450. 6?

450 . 88

450.97

450.95

450 . 46

449.61

449 . 90

450.30

450 . 59

450.82

450.89

450.36

449 . 7Z

450 . 02

450.38

450 . 58

450 . 70

450. 7Z

450.24

449.54

459.95

450.42

450.74

450.73

450.69

Nov.

450.11

449 28

449 . 69

450.15

450 .78

451.09

451.08

450 . 65

450.09

450.55

451.04

451.36

451.35

451.40

450.95

450.18

450 . 58

451.03

451.37

451.43

451.35

450.82

450 . 33

450.66

451.06

451.16

450.19

450.46

450 . 49

450.06

-

Dec.

450.38

451.02

451.45

451.47

451.55

451.02

450.32

450.72

451.32

451.55

451.57

451.53

451.03

450.32

450.65

451.20

451.60

451.84

451.76

450.96

450 . 33

450 . 63

451.12

451.43

451.48

450 . 89

449.87

449 . 39

450.06

450.85

451.39

Jan.

451.58

451.16

450 . 23

449.86

450.67

451 . 55

451.92

451.91

451.84

451 . 29

450.70

451.42

452.09

452.12

451.84

451 . 48

450.80

450.06

450.54

451.24

451.52

451.45

451.32

451.09

450.56

450.80

451 . 20

451.22

450.97

450.77

450 . 46

Feb.

450.25

450 . 70

450.99

451.04

450.99

450 . 89

450.68

450 . 50

450 . 82

451.06

451.09

451.06

450.99

450.83

450.70

450.88

451.05

451.06

450.97

450.98

450.82

450 . 64

450^92

451.12

451.25

451.42

451 . 41

451.15

-

-

-

Mar.

450 . 70

450 . 86

451.04

451.09

451.06

451 . 03

450.77

450 . 45

450.94

451.40

451 . 62

451.60

451.40

450.96

450.51

451.04

451 . 50

451.66

451.72

451.67

451 . 44

450.85

451.02

451.58

451.94

452.14

452.16

451.68

450.97

451.03

451.37

Apr.

451.72

451.96

451.99

451 . 49

450.52

450 . 75

451.37

451.84

452.02

451.95

451.24

450 . 35

450.87

451.67

452.16

452 . 45

452.52

452.08

451.09

451.32

451.67

451.79

451.94

452.04

451.55

450.84

451.38

451.90

452.20

452.20

-

May

452.19

451.72

450.94

451.28

451.63

451.81

451.85

451.83

451.47

450.84

451.02

451.36

451.62

451.82

451.96

451.62

451.06

451.27

451.62

451.62

451.65

451.89

451.77

451 . 46

451.79

452.08

452.26

452.48

452.67

452.50

451.82

June

451.25

451.58

451.82

452.06

452.12

451.93

451.34

451.52

451.86

452.00

452.14

452.22

451.96

451.41

451.47

451.80

452.01

452.15

452.22

451.93

451.40

451.35

451.40

451.52

451 . 68

451.85

451.75

451.36

451.32

451 . 46

-

July

451 . 58

451 . 80

451.90

451.77

451.36

450.97

451 . 10

451.55

451.83

452 . 00

451.76

451.21

451.16

451.52

451.80

451.96

452.15

452.06

451.61

451.66

451.98

452.16

452.31

452.37

452 17

451.63

451.58

451.87

452.05

452.12

452.10

Aug.

451.80

451 . 20

451.09

451.29

451.39

451 . 48

451.56

451.25

450.63

450.66

451.13

451.43

451.59

451.65

451.56

450.98

451.01

451.37

451.62

451.78

451.87

451.65

451.11

451.18

451.51

451.69

451.84

451.96

451.67

450.98

451.09

Sept.

451 . 50

451 . 69

451.78

451.78

451 . 40

450.62

449 . 96

450.34

451.15

451.58

451.82

451.82

451.18

451.21

451.66

451.86

451.89

451.87

451.75

451.17

451.21

451 . 70

452.00

452.13

452.23

452.10

451 . 45

451.36

451.80

452.04

-
COLORADO RIVER BASIN

ond-fetrt, of Colorado River near Topock, 

year October 1948 to Septemter 1949

June 'July Sept.

12,100

15,100

16,800

17,700

17,200

15,600

12,500

13,900

15,700

16,800

16,500

17,500

17,300

17,300

15,600

12,900

13,700

15,400

16,900

17,500

17,100

16,000

13,500

14,300

15,500

17,700

17,500

15,300

12,200

13,600

16,400

17,700

18,000

17,700

17,000

13,800

15,200

17,200

16,200

10,500

18,400

16,800

13,900

15,300

17,200

18,000

18,400

18,500

16,600

13,000

15,400

17,600

18,400

18,400

18,600

17,100

13,600

12,000

15,400

18,200

19,206

19,800 

19,500 

17,600 

IS,100 

19,500

19,800 

19, 701? 

19,700 

19,10P 

17,400

18,100 

19,500 

20,400 

20, 70'0 

20,7QO

20,OOO 

17,900 

18,300 

19,700 

20,300

Secondfoot-daysRunoff In 

acre-feet

October.. 

November. 

December.

Calendar year 1948

January... 

February.. 

March.....

April.....

May.......

June......

July......

Augus t....

September.

470,700

406,300

562,300

18,100

19,000

20,900

10,900

10,100

12,500

21,900

23,300

22,900

23,400

20,000

17,800

18,700

18,500

20,700

14,400

18,500

17,200

14,400

12,500

12,100

11,300

12,200

12,000

19,530

21,650

20,550

19,870

16,640

15,600

16,130

16,370

18,480

933,600

964,600

1,115,000

1,201,000

1,202,000

1,264,000

1,182,000

1,023,000

928,300

991,500

1,006,000

,099,000

Water year 1948-49 23,400 10,100 17,830
COLORADO RIVER MAIN STEM 35 

Havasu Lake near Parker Dam, Ariz.-Calif.

Location.- Water-stage recorder, lat. 34" 19', long. 114"09", in SWij seo 28, T 3 "4., 

R, 2 1 / E. San Bernardino meridian, at intake pumping plant of Metropolitan Water District of Southern California, 1.8 miles upstream from Parker Dam on Colorado River, 

which Is 156 miles downstream from Hoover Dam. Datum of gage is 400.54 feet above 

mean sea level, datum of 1929, or 400.83 feet above mean sea level, datum of Metropolitan Water District of Southern California. Gage readings have been reduced to 

elevations above mean sea level, datum of 1929.

Drainage-area.- 178,800 square miles at Parker Dam. 

Records available - July 1938 to September 1949.

Extremes.- Maximum contents during year, 691,400 acre-feet May 30 (elevation, 450.F8 

feet); minimum, 553,500 acre-feet Feb. 3 (elevation, 444.54 feet).

1938-49: Maximum contents, 693,000 acre-feet (by temporary use of flashboards) 

Apr. 18, 1943 (elevation, 450.76 feet); minimum, 71,400 acre-feet June 25, 1942 (elevation, 412.09 feet).

Remarks.- Lake is formed by concrete-arch dam; dam completed and storage began July 1,

1938. Usable capacity, 688,000 acre-feet (neglecting slope in lake) between elevations 

400.54 feet (sill of regulating gates) and 450.54 feet (top of regulating gates) above 

mean sea level. Dead storage, 28,600 acre-feet below elevation 400.54 feet. About 

0.07 foot fall indicated between Parker Dam and gage under normal operating conditions. 

Draw-down below elevation 440.54 feet (contents, 472,000 acre-feet) not legally permissible except by consent of the Metropolitan Water District of Southern California or 

in an emergency affecting the safety of the dam. Lake is used for flood control, power 

development, re-regulation of river for irrigation demand, and as a basin from which 

water is pumped by Metropolitan Water District of Southern California to Colorado River 

aqueduct (see p. 37). Figures given herein represent usable contents.

Elevation at 12 p.m., in feet, water year Oetobe September 19 4U

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

446.45

448 . 60

448 . 89

448 . 80

448.37

448.14

448 . 09

448.15

448 . 23

448.31

448 . 02

447.57

447.28

447.27

447 . 45

447.66

448.01

447.88

447.52

447 . 40

447.45

447.60

447.78

448.11

447.97

447 . 50

447.31

447.41

447.54

447.72

448.12

Nov.

447.74

447 18

446.88

446.88

447.02

447.19

447 . 70

447.67

447.44

447.53

447 . 82

448. 14

448.32

448 . 59

448.36

447.92

447.86

447.80

447.93

448 . 09

448.34

448.18

447.80

447.65

447.67

447.89

447 . 43

447.32

447.17

446.81

Dec.

446.72

446.84

446.88

447.14

447 . 41

447.34

447.00

446.85

446.88

446.94

447.00

447.01

446. Q2

446.50

446.31

446.28

446.42

446.82

446.98

446.94

446.69

446.61

446.71

446.86

447.13

447.16

446 . 79

446.26

446 . 14

448.24

446.54

Jan.

447.00

447.41

447 . 14

446.75

446.70

446 . 79

446.97

447.O8

447.19

447.11

446.90

446.82

446.68

446.51

446.42

446.23

445.67

445.26

445.12

445.26

445 . 48

445.63

445.80

445.94

445.58

445 . 00

444.83

445 . 02

445.09

445.17

445.00

Feb.

444.66

444.57

444.73

444.92

445.22

445 . 30

445.32

445.11

445.00

445.06

445.10

445.24

445 . 40

445.30

445.17

445.13

445.17

445.33

445.30

445.24

445 . 18

444.93

444.81

444.86

445.16

445.53

445.86

445.62

_

-

Mar.

445 . 10

445.01

444.99

445.02

445.25

445.43

445 . 42

445.17

445.13

445.32

445.63

445.93

446.11

445.95

445 . 59

445.50

445.62

445.87

446.26

446.51

446 . 62

446.39

446.30

446.41

446.66

447.01

447.32

447.56

447.22

447.04

447.06

Apr.

447.13

447.34

447.53

447.57

447.20

447 . 02

447.02

447 . 23

447 . 49

447.66

447.67

447.26

447.15

447.30

447.59

448.01

448 . 40

448 . 53

448.28

448.23

448.31

448.41

448.63

448.91

448.92

448.55

448 . 61

448.79

449 . 13

449 . 34

-

May

449 . 46

449.30

448 . 83

448,71

448.78

449.01

449 . 39

449.61

449.56

449 . 23

449.12

449.21

449.35

449 . 60

449.82

449.77

449.37

449 . 28

449 . 36

449.49

449.72

450.01

450.00

449 . 94

449.82

449.94

450.09

450.34

450.54

450.53

450.30

June

449.87

449 . 89

449 . 89

450.08

450.19

450.21

449.95

449.83

449 . 91

450.00

450.14

450.29

450.14

449.. 82

449.66

449 . 69

449 . 84

449.99

450.29

450 .-21

449.88

449.57

449.26

449 . 28

449 . 6O

449.82

449.82

449.62

449 . 49

449 . 51

-

July

449.58

449 . 79

450.02

450.10

449.92

449 . 57

449 . 43

449 . 58

449 . 73

449 . 92

449 . 89

449 . 56

449 . 32

449 . 33

449 . 48

449 . 69

449 . 95

450.06

449.92

449 . 81

449.89

450.02

450.17

450.33

450.34

450 . 01

449.81

449.84

449.98

449.89

449.85

Aug.

449.66

449.22

448.81

448.59

448 . 6O

448 . 84

449.08

449.07

448.73

448.57

448.64

448 . 87

448.99

448.13

449.17

448.93

448.79

448 . 81

448.99

449 . 22

449 . 42

449 . 44

449.26

448.99

449 . 06

449.17

449.27

449:37

449.33

448.96

448 . 74

Sept.

448.65

448.67

448.73

448 . 79

448.72

448.23

447.43

446.95

446.82

446.92

447.12

447.24

447.17

447.08

447.16

447.23

447.28

447.43

447.45

447.25

447.14

447.14

447.27

447 . 43

447.90

447.92

447.69

447.46

447 . 44

447.38

-

Note.- Elevatlc ean sea level, datum of 1929.
"OLORADO RIVER BASIN

Usatle contents it 12 p.m., In thousa 

water year to September 1949

near Parker ^am, Aris.-Calif.,

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

639.4

644.7

649.6

649.3

637.6

632.3

631.2

632.5

634.4

636.2

629.5

619.2

612.8

612.6

616.5

621.3

629.3

626.3

618.1

615.4

616.5

619.9

624.0

631.6

628.4

617.6

613.4

615.6

618.5

622.6

631.8

Nov.

623.1

610.6

604.0

604.0

607.1

610.4

622.2

621.5

616.3

618.3

624.9

632.3

636.4

642.6

637.4

627.2

625.9

624.5

627.5

631.2

636.9

633.2

624.5

621.0

62-1.5

626.6

616.1

613.7

610.4

602.4

-

Dec.

600.5

603.1

604.0

609.7

615.6

614.1

606.6

603.3

604.0

605.3

606.6

606.8

602.1

595.6

591.4

590.8

593.9

602.7

606.2

605.3

599.8

598.0

600.2

603.5

609.5

610.1

602.0

590.3

587.7

589.9

596.5

Jan.

606.6

615.6

609.7

601.1

600.0

602.0

606.0

608.4

610.8

609.0

604.4

602.7

599.6

595.8

593.9

589.7

577.4

568.6

565.7

568.6

573.2

576.5

580.2

583.3

575.4

563.2

559.6

563.6

565.0

566.7

563.2

Feb.

556.0

554.1

557.5

561.6

567.8

569.5

569.9

565.5

563.2

564.4

565.3

568.2

571.6

569.5

566.7

565.9

566.7

570.1

569.5

568.2

566.9

561.7

559.2

560.2

566.5

574.3

581.3

576.3

_

_

-

Mar.

565.3

563.4

563.0

563.6

568.4

572.2

572.0

566.7

565.9

569.9

576.5

583.1

587.0

583.5

575.6

573.7

576.3

581.8

590.3

595.8

598.3

593.2

591.2

593.6

599.1

606.. 8

613.7

619.0

611.5

607.5

607.9

Apr.

609.5

614.1

618.3

619.2

611.0

607.1

607.1

611.7

617.4

621.3

621.5

612.3

609.9

613.2

619.6

629.3

638.3

641.3

635.5

634.4

636.2

638.5

643.6

650.0

650.2

641.7

643.1

647.2

655.1

659.9

-

May

662.7

659.0

648.2

645.4

,647.0

652.3

661.0

666.1

665.0

657.4

654.8

656.9

660.1

665.9

670.9

669.8

660.6

658.5

660.4

663.4

668.6

674.3

675.1

671.4

670.9

673.7

677.2

683.2

688.0

687.8

682.2

June

672.1

672.6

672.6

677.0

679.6

680.1

673.9

671.2

673.0

675.1

678.4

682.0

678.4

670.9

667.3

668.0

671.4

674.8

682.0

680.1

672.3

665.2

658.1

658. E

665.9

670.9

670.9

666.3

663.4

663.8

-

July

665.4

670.2

675.5

677.4

673.2

665.2

662.0

665.4

668.9

673.2

672.6

665.0

659.4

659.7

663.1

668.0

673.9

676.5

673.2

670.7

672.6

675.5

679.1

683. n

683.2

675.3

670.7

671.4

674.6

672.6

671.6

Aug.

667.3

657.1

647.7

642.6

642.9

648.4

653.9

653.7

645.9

642.2

643.8

649.1

651.8

655.1

656.0

650.5

647.2

647.7

651.8

657.1

661.7

662.2

658.1

651.8

653.5

656.0

658.3

660.6

659.7

651.2

646.1

Sept.

644.0

644.5

645.9

647.2

645.6

634.4

616.1

605.5

602.7

604.9

609.3

611.9

610.4

608.4

610.1

611.7

612.8

616.1

616.5

612.1

609.7

609.7

612.6

616.1

626.8

627.2

622.0

616.7

616.3

615.0

-

Note.- Dead storage below sill of outlet gates is 28,600 acre-feet.

Monthly elevation and contents, water year October 1948 to September 1949

Date

Sept. 30. ...................

Oct. 31. ...................

Dec. 31. ...................

Calendar year 1948. ......

Sept. 30. ... J ............ .

Elevation 

(feet)i

446 . 54

-

447.38

-

Contents 

(acre-feet )

596,500

-

615,000

Change in contents 

during month 

(acre-feet)

-5,900

-7,300

-31,100

t Elevations at 12 p.m.
COLORADO RIVER MAIN STEM 37

Colorado River below Parker Dam, Ariz.-Calif.

Location.- Water-stage recorder, lat. 34°15'30", long. 114°09 I 10", in NE^SW^ sec. 16, T. 

2~N7T~R. 27 E. San Bernadino meridian, 4.1 miles downstream from Parker Dam, 10.4 

miles upstream from Headgate Rock Dam, and 11 miles northeast of Parker, Ariz. Datum 

of gage is 346.16 feet above mean sea level, datum of 1929.

Drainage area.- 178,800 square miles.

Records available.- February to September 1934 (gage heights and fragmentary discharge 

records), Uctober 1934 to September 1949. Records of diversion to Colorado River 

aqueduct, January 1939 to September 1949.

Average discharge.- 15 years (1934-49), 13,940 second-feet (not adjusted for storage); 

15 years (1934-49), 14,000 second-feet (adjusted to include storage in Havasu Lake, 

but not in Lake Mead).

Extremes.- Maximum discharge during year, 26,200 second-feet Feb. 28 (gage height, 23.56 

I'eet); minimum, 5,340 second-feet Oct. 4, 19, 20; minimum daily, 11,800 second-feet 

Oct. 31.

1935-49: Maximum discharge, 42,400 second-feet Feb. 8, 1937; no flow at Parker Dam 

parts of several days in 1942 when gates in dam were closed; minimum daily, 1,440 

second-feet Feb. 15, 1935.

An unregulated discharge of probably less than 1,350 second-feet occurred Aug. 18, 

1934 (lowest unregulated discharge since 1917 and probably since a much earlier date)

Remarks.- Records excellent. Many diversions above station. Flow regulated by Hoover 

Dam since Feb. 1, 1935, and by Parker Dam since July 1, 1938 (see pp. 29,35). Diversion to Colorado River aqueduct, 1.8 miles upstream from Parker Dam, is water pumped 

from Havasu Lake less water spilled from Gene Reservoir and returned to Havasu Lake. 

No return surface flow from Gene and Copper Basin Reservoirs during year. Some water 

is returned to river both above and below station by percolation from both reservoirs.

Cooperation.- Record of diversions to Colorado River aqueduct furnished by Metropolitan 

water District of Southern California.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

15,800 

15,300 

15,200 

14,600 

16,200

15,600 

15,300 

15,800 

15,600 

15,200

16,400 

15,200 

15,000 

15,200 

14,500

14,700 

13,400 

15,700 

14,900 

14,500

14,900 

14,700 

14,800 

13,000 

14,700

14,700 

15,100 

14,800 

15,300 

14,900 

11,800

Nov.

16,000 

15,400 

15,400 

15,300 

15,800

16,300 

13,300 

15,400 

15,700 

15,600

15,500 

15,700 

16,500 

15,400 

17,500

17,500 

17,100 

17,600 

17,500 

17,300

15,700 

16,400 

17,500 

17,800 

17,700

17,100 

17,800 

16,400 

17,000 

17,700

Dec.

17,700 

17,400 

17,900 

17,600 

18,300

17,600 

18,400 

18,600 

19,000 

18,900

19,200 

19,200 

19,200 

18,700 

18,900

19,000 

19,000 

17,200 

17,600 

17,700

17,300 

18,000 

18,300 

17,900 

16,700

16,400 

16,900 

17,100 

17,100 

17,400 

17,400

Jan.

15,000 

15,200 

16,300 

17,200 

, 18,600

19,400 

19,400 

19,400 

19,500 

19,400

19,400 

21,500 

24,000 

24,600 

22,300

22,700 

22,000 

19,300 

19,000 

19,000

19,200 

19,400 

19,400 

19,200 

19,600

24,300 

22,500 

20,600 

20,600 

20,800 

20,700

Month

Oct

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Augi 

Sep

W

ember. .......................

alendar year 1948. ...........

-lary

11.. .........................

bember. ... i ..................

ater year 1948-49. ...........

Feb.

20,700 

20,600 

20,700 

20,700 

20,900

21 , 400 

21 , 400 

21,200 

21,300 

21,600

21,600 

21,600 

21,100 

21,200 

21,700

21,500 

21,500 

21,100 

20,700 

22,000

21,900 

22,000 

22,100 

22,200 

21,300

20,100 

21,900 

25,100

Seeondfoot-days

462,800 

492,900 

557,600

6,377,500

619,500 

601,100 

623,300 

562,900 

495,400 

465,400 

479,900 

510,700 

554,100

6,425,600

liar.

24,900 

21,600 

21,500 

21,500 

20,100

19,800 

19,700 

19,900 

19,800 

19,700

19,900 

20,200 

20,300 

20 , 400 

20,300

20,300 

20,100 

20,100 

19,600 

19,500

19,600 

19,700 

19,600 

19,600 

19,200

19,000 

19,000 

19,100 

19,700 

19,800 

19,800

Apr.

19,700 

19,400 

19,200 

19,200 

19,200

19,300 

19,200 

19,200 

18,900 

18,900

18,600 

18,900 

18,900 

18,900 

19,000

18,600 

18,600 

18,700 

19,200 

19,100

19,100 

19,200 

18,500 

17,700 

18,100

18,100 

17,100 

18,600 

17,000 

18,800

Hay

18,000 

18,200 

18,200 

18,300 

18,500

17,400 

14,700 

14,600 

15,300 

15,400

15,400 

15,100 

15,800 

14,600 

14,700

15,200 

15,200 

15,800 

15,700 

15,200

13,600 

13,900 

14,900 

15,400 

16,000

17,300 

16,600 

16,000 

16,900 

17,200 

16,300

June

15,900 

15,900 

15,700 

15,700 

15,900

15,300 

14,400 

14,800 

15,200 

15,700

15,900 

15,300 

16,800 

15,800 

15 , 700

15,900 

15,700 

15,400 

15,100 

15,400

15,800 

16,300 

18,800 

15,800 

14,200

13,400 

15,100 

15,200 

14,900 

14,400

Discharge in second -feet

Maximum

16,400 

17,800 

19,200

21,000

24,600 

25,100 

24,900 

19,700 

18,500 

18 , 800 

18,400 

18,300 

20,000

25,100

Minimum

11,800 

13,300 

16,400

11,800

15,000 

20,100 

19,000 

17,000 

13,600 

13,400 

13,700 

15,000 

17,400

11,800

Mean

14,930 

16,430 

17,990

17,420

19,980 

21,470 

20,110 

18,760 

15,980 

15,510 

15,480 

16,470 

18,470

17,600

July

14,800 

13,700 

14,100 

13,700 

13,900

13,700 

13,700 

13,800 

15,400 

15,200

15,700 

15,800 

16,000 

16,100 

16,000

16,000 

15,600 

15,900 

15,500 

15,700

16,000 

16,000 

15,700 

16,100 

16,300

16,100 

15,600 

16,000 

15,800 

17,600 

18 , 400

Runoff In 

acre-feet

918,000 

977,700 

1,106,000

12,650,000

1,229,000 

1,192,000 

1,236,000 

1,116,000 

982,600 

923,100 

951,900 

1,013,000 

1,099,000

12,740,000

Aug.

18,100 

18,200 

18,300 

18,200 

17,400

15,000 

15,600 

15,200 

15,300 

15,200

15,200 

15,100 

15,900 

16,100 

16,000

15,900 

16,400 

16,200 

16,300 

16,300

16,200 

16,400 

16,300 

16,800 

16,600

16,600 

17,300 

17,100 

17,200 

17,200 

17,100

Sept.

17,500 

17,700 

17,400 

17,400 

17,500

17,600 

19,600 

19,400 

18,400 

17,700

17,900 

17,700 

18,000 

18,300 

18,300

18,600 

19,200 

18,200 

19,000 

18,900

18,800 

18,800 

18.90Q 

18,500 

15,600

19,900 

20,000 

19,800 

19,800 

19,700

Diversion to 

Colorado River 

aqueduct 

(acre-feet)

10,850 

11,181 

13,457

194,245

12,742 

12,261 

12,754 

14,549 

13,348 

17,142 

14,196 

13,954 

25,831

172,265
38 COLORADO RIVER MAIN STEM

DIVERSIONS BETWEEN PARKER DAM AND IMPERIAL DAM 

Diversion for Colorado River Indian Reservation, near Parker, Ariz.

Location.- Diversion for Colorado River Indian Reservation is made at the Arizona end of

 Headgate Rock Dam, lat. 34°10'05", long. 114°16'30", in NE£ sec. 31, T. 10 N., R. 19 W. 

Gila and Salt River meridian, on Colorado River Indian Reservation, 1 5 miles northeast | 

of Parker and 14|- miles downstream from Parker Dam. The diversion is measured at check 

gate structure about 3-| miles duwnstream from intake. Prior to January 1949 the diversion was measured below wasteway, at crossing of Arizona Highway 72, lj miles downstream from intake.

Records available,- January 1915 to December 1936 (calendar year discharge), January 1937 

to September 1949 (monthly discharge).

Remarks.- Figures given herein show water diverted to project. Discharge is the flow past

 check gate structure combined with the flow of two laterals which divert at this point. 

Flow over check gates is computed by weir rule and in laterals by pressure gages, 

checked occasionally by current-meter measurements. Water is used for irrigation on 

Colorado River Indian Reservation on east side of Colorado River between Parker and 

Ehrenberg. Flow returned to Colorado River through drainage canal at lower end of 

project based on discharge measurements made about every 10 days.

Cooperation.- Records furnished by Office of Indian Affairs.

Monthly diversion, water year October 1948 to September 1949

Month

December .................. . . .

Calendar year 1948. ........ . . . .

September. ............................

Water year 1948-49 ..................

Sec

Maximum

190

398

250

321

404

. 485

ond-feet

Minimum

0

0

201

0

Mean

90.1

186

324

208

5,540

134,800

19,250

150,800

Water returned

drainage canal 

(acre-feet)

2,720

31,600

4,060

37,480

Colorado River at Imperial Dam, Ariz.-Calif.

Imperial Dam on Colorado River is located in lat. 32°53'00",. long. 114°27'50". The 

California end is in Wj sec. 9, T. 15 S., R. 24 E. San Bernardino meridian. The Arizona 

end is in SW^NW^ sec. 30, T. 6 S., R. 21 W. Gila and Salt River meridian. The dam is 

5 miles upstream from Laguna Dam, 15 miles northeast of Yuma, 90 miles downstream from 

intake of Palo Verde Canal, and 147 miles downstream from Parker Dam. Drainage area of 

the river at Imperial Dam is 184,600 square miles.

At the California end of the dam, water is diverted by the Ail-American Canal for use 

in Arizona and California. At the Arizona end, water is diverted by the Gila Gravity 

Main Canal for use in Arizona. Water was first diverted by All-American Canal in October 

1938 and by Gila Gravity Main Canal in August 1943.

No records of flow of Colorado River have been collected at site of the dam either 

before or after its construction. The discharge figures published herewith are based on 

the combined daily records of discharge obtained at gaging stations on Colorado River at 

Yuma, All-American Canal near Imperial Dam, and Gila Gravity Main Canal at Imperial Dam, 

plus records of diversions by North Gila Valley Canal-at Laguna Dam furnished by the 

Bureau of Reclamation, minus record for Gila River near Dome, neglecting drainage and 

waste return flow and channel losses between those stations and Imperial Dam. The combination of records shows the flow of Colorado River at Imperial Dam and above all diversions in the vicinity cf Yuma.

Records available, October 1342 to September 1949 (monthly discharge only). Records 

of daily and monthly discharge were obtained for July 1934 to September 1942 at a gaging 

station 145 miles upstream, and published as Colorado River near Picacho, Calif. Estimates of annual discharge for the years 1903-34, derived from records of Colorado River 

at Yuma, Gila River near Dome, and diversions at Laguna Dam, were published in WaterSupply Paper 918.

Monthly discharge, water year October 1948 to September 1949

Month

December. ......

February. ...........

March. ...........

April... ...................

May. .................

June .......................

July. .. ......................

September. ............ ......

Water year 1948-49. .........

Maximum

15,500 

18 , 100 

19,400

20,700

24,600 

22,100 

24,600 

19,600 

17,400 

16,100 

15,300 

16,900 

18,100

24,600

Minimum

13,900 

13,900 

16,900

12,300

15,100 

20,300 

18,400 

16, SCO 

13,400 

13,600 

12,600 

13,500 

15,500

12,600

Mean

14,650 

15,880 

17,940

16,580

20,120 

21,290 

19,940 

18,210 

15,080 

14,640 

13,990 

15,190 

16,740

16-, 940

Runoff in 

acre-feet

900,700 

944,900 

1,103,000

12,040,000

1,237,000 

1,183,000 

1,226,000 

1,084,000 

927,100 

871,300 

860,200 

934,000 

996,300

12,270,000
COLORADO RIVER MAIN STEM 39

Colorado River at Yuma, Ariz.

Location.- Water-stage recorder, lat. 32°43'45", long. 114°37'15", in NW^NE^- sec. 35, T. 

IB S. , R. 22 E. San Bernardino meridian, 1,800 feet downstream from highway bridge at 

Yuma, half a mile upstream from Yuma Main Canal wasteway, 4 miles downstream from Gila 

River, 7 miles upstream from boundary between California and Mexico, and 19 miles downstream from Imperial Dam. Datum of gage is 102.32 feet above mean sea level, Yuma 

project datum, or 102.86 feet above mean sea level, datum of 1929.

Drainage area.- 242,900 square miles, including all closed basins entirely within the 

drainage boundary.

Records available.- January 1878 to December 1901 (gage heights only), January 1902 to 

September 1949.

Extremes.- Mpximum discharge during year, 24,000 second-feet Jan. 13 (gage height, 18.07 

feet), occurred during period of sluicing at Laguna Dam; minimum, 470 second-feet July 1 

(gage height, 9.17).

1902-49: Maximum discharge, 250,000 second-feet Jan. 22, 1916 (gage height, 34.0 

feet); minimum daily, 18 second-feet Aug. 25-27, 1934, caused by diversion at Laguna 

Dam; minimum gage height, 8.36 feet July 16, 1947.

Remarks.- Records excellent. Many diversions from Colorado River and tributaries. Principal diversions below Parker Dam are Colorado River Indian Reservation Canal, Palo Verde 

Canal, All-American Canal, Gila Gravity Main Canal, and North Gila Valley Canal. Flow 

of Colorado River regulated by Hoover, Parker, Headgate Rock, and to a small extent by 

Imperial and Laguna Dams. No regulation on Gila River below Gillespie Dam. Records of 

chemical analyses for the water year 1949 are given in Water-Supply Paper 1163.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5,870 

5,950 

6,180 

6,170 

5,560

5,400 

6,080 

5,910 

6,450 

6,760

7,190 

7,360 

7,200 

7,900 

7,500

7,010 

7,620 

10,900 

9,600 

8,930

9,650 

8,420 

8,190 

8,950 

e-,540

8,340 

,380 

,480 

,260 

,050 

,210

Nov.

7,760 

7,160 

6,400 

7,470 

7,320

7,080 

7., 420 

8,500 

8,940 

8,320

3,660 

9,240 

9,200 

9,270 

9,800

10,500 

10,800 

12,100 

11,800 

12,200

13,200 

12,600 

11,500 

11,200 

11,800

12,500 

13,100 

12,700 

13,400 

12,600

Dec.

12,400 

12,700 

12,500 

12,700 

13,200

13,000 

13,300 

12,800 

13,500 

14,300

14,600 

15,100 

15,200 

15,000 

14,600

14,600 

14,800 

15,100 

14,800 

13,900

13,100 

13,000 

13,400 

13,300 

13,600

13,600 

13,400 

12,300 

12,100 

12,400 

12,900

Jan.

13,600 

14,400 

11,500 

9,920 

9,980

10,900 

12,400 

12,900 

13,600 

13,000

12,700 

16,200 

17,200 

17,500 

20,000

20,600 

19,200 

19,200 

18,800 

15,000

15,100 

14,800 

15,100 

15,200 

15,800

15,800 

16,000 

19,000 

20,000 

17,600 

16,400

Feb.

16,400 

16,900 

16,700 

16,200 

16,300

17,300 

17,000 

17,400 

17,600 

17,000

15,900 

17,000 

16,800 

16,000 

14,800

14,800 

15,000 

14,600 

14,800 

15,100

14,400 

14,700

14,700 

14,800 

14,100

14,200 

14,600 

13,600

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

14,400 

16,400 

17,900 

15,700 

14,800

14,900 

14,000 

12,800 

12,800 

12,800

11,300 

11,600 

12,500 

12,900 

12,600

12,800 

11,800 

11,700 

12,100 

13,100

11,900 

11,500 

11,600 

10,600 

11,400

11,400 

11,400 

9,260 

7,680 

7,260 

7,220

Apr.

7,500 

7,530 

8,410 

7,980 

7,020

6,930 

6,980 

6,740 

7,790 

7,960

7,140 

6,260 

5,900 

5,900 

5,670

6,010 

6,400 

5,990 

5,610 

5,940

6,190 

5,830 

5,920 

6,230 

6,620

6,170 

6,220 

5,840 

5,410 

6,260

Secondfoot-days

230,010 

304,540 

421,200

3,156,300

480,400 

438, 700 

380,120 

196,350 

213,920 

135,990 

74,900 

128,350 

207,490

3,211,970

May

6,910 

7,060 

7,560 

7,890 

7,730

8,230 

8,570 

9,120 

7,000 

5,790

5,510 

6,000 

6,250 

5,840 

6,560

6,920 

6,510 

6,460 

6,570 

6,390

7,450 

7,620 

7,370 

6,120

5,560

5,320 

5,850 

6,510 

7,510 

7,770 

7,970

Maximum

10,900 

13,400 

15,200

16,400

20,600 

17,600 

17,900 

8,410 

9,120 

8,340 

3,300 

5,710 

8,200

20, 600

June

7,870 8,340' 

7,490 

6,300 

6,010

5,570 

5,200 

5,420 

5,110 

4,140

3,980 

4,010 

4,530 

4,140 

4,360

4,640 

4,390 

4,020 

3,650 

3,890

3,400 

3,430 

3,230 

2,850 

2,850

4,560 

4,670 

3,290 

1,550 

3,100

July

1,530 

2,550 

2,500 

2,940

2,450

2,130 

1,760 

1,310 

1,270 

1,590

1,960 

1,780 

2,500 

2,660 

2,540

2,460 

2,380 

2,820 

2,560 

2,650

2,410 

1,900 

2,020 

2,900 

3,300

3,050 

2,960 

3,230 

2,870 

2,850 

3,070

Minimum

5,400 

6,400 

12,10®

1,600

9,920 

13,600 

7,220 

5,410 

5,320 

1,550 

1,270 

2,010 

5,250

1,270

Aug.

3,240 

3,680 

4,240 

4,680 

4,890

5,250 

4,960 

4,600 

3,610 

3,320

3,780 

?,010 

2,920 

3,050 

3,140

3,210 

3,860 

3,830 

3,840

4,650

4,530 

3,900 

4,110 

4,340 

4,380

4,530 

5,290 

5,030 

4,630 

5,140 

5,710

Mean

7,420 

10,150 

13,590

8,624

15,500 

15,670 

12,260 

6, 545 

6,900 

4,533 

2,416 

4,140 

6,916

8,800

Sept.

5,590 

5,410 

5,880 

5,710 

5,250

6,270 

6,370 

6,280 

5,790 

8,060

7,700

7,440 

7,350 

7,560 

6,800

6,810 

7,540 

7,570 

6,790 

7,740

7,620 

7,190 

7,750 

7,540 

7,620

7,550 

7,260 

6,110 

6,740 

8,200

Runoff In 

acre-feet

456,200 

604,000 

835,400

6,260,000

952,900 

870, 100 

754,000 

389,500 

424,300 

269,700 

148,600 

254,600 

411,600

6,371,000

939921 0-51-4
POINTS AT WHICH STREAM-FLOW RECORDS ARE TAKEN

1. Colorado River at Imperial Dam

2. Colorado River at Yuma

3. Colorado River arid Pilot Knob wasteway at 

Rockwood gate

4. Gila Gravity Main Canal at Imperial Dam

5. All-American Canal near Imperial Dam

6. All-American Canal above Pilot Knob wasteway

7. Yuma Main Canal at siphon-drop power plant

8. Yuma Main Canal below Colorado River siphon 

3. Yuma Main Canal wasteway at Yuma

10. Pilot Knob wasteway near Pilot Knob

11. North Gila Valley Canal at Laguna Dam

12. Alamo Canal at Andrade

Return surface flows from Yuma project: 

To Colorado River:

13. California drainage canal

14. Araz drain

15. Cooper wasteway

16. Eleven-mile wasteway

17. Twenty-one mile wasteway 

Across Arizona-Sonora boundary

18. Main drain

19. East Main Canal 

20. Gila River near Dome

Detail of area A.

Figure 2. - Gaging stations in vicinity of Yuraa, Ariz.
COLORADO RIVER MAIN STEM

Location. - Lat. 32°44'00", long. 114°4C!'40", in SEtrSW^ see. 25, T. 16 S., R. 21 E. San Bernardino meridian, at Roekwcod gate, 1 mile upstream from international boundary, 5 miT ;-s 

west of Yuma, Arin., and 6 miles downstream from gaging station on Colorado River ac. 

Yuma.

-Drainage area.- 243,000 square miles for Colorado River at California-Mexico boundary.

Records available.- 1934 to September 194? (1934-36), yearly discharge only; January 1937 

to September 1945, monthly discharge only).

Remarks.- Records good. Records show total flow at Roekwood gate, and are the sum of records obtained at gaging stations on Colorado River at Yuma, Yuma Main Canal wasteway at 

Yuma, and Pilot Knob wasteway near Filut Knob, plus records of California drainage 

canal and Araz drain furnished by Bureau uf Reclamation. Roekwood gite, at head of 

Alamo Canal which also receives water from All-American Canal through Pilot Knob wasteway, can be used to control fluw of Colorado River water into the canal or to return 

water frum Pilot Knob wasteway to Colorado River. This point is below all diversions 

for use within the United States. For additional water available below this point see 

record of Return surface flows from Yuma Project.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8,420 

8,490 

8,720 

8,520 

7,630

7,370 

8,060 

7,930 

8,550 

8,860

8,700 

8,720 

8,570 

9,290 

8,930

8,520 

9,220 

12,600 

11,100 

10,500

11,200 

9,950 

9,750 

10,600 

9,980

9,790 

8,880 

8,980 

8,740 

8,540 

8,750

Nov.

9,130 

8,520 

7,800 

8,890 

8,770

8,570 

8,990 

9,440 

9,440 

8,820

9,210 

9,800 

9,840 

9,930 

10,300

11,100 

11,300 

12,700 

12,400 

12,800

13,900 

13,200 

12,100 

11,800 

12,500

13,200 

13,900 

13,500 

13,900 

13,200

Dec.

13,000 

13,300 

13,200 

13,400 

13,900

13,600 

13,900 

13,500 

14,200 

15,000

15,400 

15,800 

15,800 

15,600 

15,200

15,300 

15,600 

15,900 

15 , 600 

14,500

14,000 

14,600 

15,200 

15,400 

15,700

15,700 

14,900 

14,900 

13 , 700 

14,000 

14,600

Jan.

15,300 

16,000 

13,000 

11,400 

11,500

12,400 

14,000 

14,500 

15,300 

14,400

14,200 

17,900 

19,200 

19,600 

22,100

22,700 

20,900 

20 , 900 

20,500 

17,700

16,800 

16,600 

16,900 

16,900 

17,800

17,800 

18 ,000 

20,900 

21,900 

19,500 

18,000

Feb.

18,000 

18,600 

18,400 

18,000 

18,000

19,100 

18,600 

19,100 

19,300 

18,700

17,700 

18,800 

18,600 

17,600 

16,400

16,500 

16,700 

16,200 

16,500 

16,800

15,800 

16,100 

16,200 

16,200 

15,600

15,700 

16,200 

15,000

Month

Ooto 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apri

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1946 .............. ........

ter year 1948-49 .......................

Mar.

15,700 

17,700 

19,300 

17,100 

16,300

16,500 

15,300 

14,300 

14,300 

14,300

12,900 

13,200 

14,000 

14,200 

14,000

14,200 

13,200 

13,200 

13,700 

14,800

13,300 

12,900 

13,000 

12,100 

12,900

13,000 

13,300 

13,000 

12,500 

12,700 

12,700

Apr.

13,000 

13,100 

14,000 

13,400 

12,400

12,400 

12,400 

12,100 

13,300 

13,500

12,400 

11,400 

10,900 

10,900 

10,700

11,100 

11,700 

11,100 

10,700 

10,900

11,100 

10,700 

11,000 

11,100 

11,000

10,400 

10,300 

9,860 

9,320 

10,100

Secondfoot-days

283,860 

328,950 

454,400

4,199,810

534,600 

484,400 

439,600 

346,280 

289,110 

266,740 

245,560 

291,300 

330,540

4,295,340

May

10,600 

10,500 

10,900 

11,100 

10,800

11,100 

1 1 , 400 

1 1 , 900 

9,450 

8,100

7,810 

8,220 

8,520 

8,270 

8,850

8,830 

8,450 

8,510 

8,530 

8,320

9,380 

9,670 

9,290 

8,130 

7,620

7,450 

8,080 

8,830 

10,000 

10,100 

10,400

Maximum

12,600 

13,900 

15,900

17,200

22,700 

19,300 

19,300 

14,000 

ll.SOO 

10,800 

8,780 

10,800 

12,500

22,700

June

10,300 

10, BOO 

9,870 

8,740 

8,980

8,840 

8,690 

9,020 

8,770 

8,120

8,190 

8,430 

9,080 

8,820 

9,110

9,350 

9,190 

8,960 

8,740 

9,040

8,640 

8,660 

8,480 

8,190 

8,240

10,000 

9,900 

8,480 

6,790 

8,320

July

6,800 

8,180 

8,360 

8,780 

8,280

7,350 

7,030 

6,620 

6,660 

7,100

7,440 

7,270 

7,990 

8,120 

8,050

8,050 

8,010 

8,280 

8,050 

8,160

7,910 

7,400 

7,560 

8,480 

8,740

8,480 

8,390 

8,670 

8,360 

8,370 

8,620

Minimum

7,370 

7,800 

13,000

6,630

11,400 

15,000 

12,100 

9,320 

7,450 

6,790 

6,620 

7,280 

9,440

6,620

Aug.

8,680 

9,080 

9,650 

10,100

10,400

10,800 

10,600 

10,000 

8,930 

8,630

9,090 

7,280 

8,210 

8,300 

8,340

8,450 

9,110 

9,080 

9,090 

9,870

9,680 

9,040 

9,200 

9,400 

9,460

9,610 

10,400 

10,200 

9,730 

10,200 

10,700

Mean

9,157 

10,960 

14,660

11,510

17,250 

17,300 

14,180 

11,540 

9,326 

8,891 

7,921 

9,397 

11,020

11,770

Sept.

10,600 

10,500 

11,000 

11,000 

10,300

11,200 

11,300 

11,200 

10,500 

12,500

12,100 

11,700 

11,500 

11,600 

10,800

10,700 

11,400 

11,300 

10,500 

11,400

11,100 

10,600 

11,200 

11,000 

11,100

11,000 

10,600 

9,440 

10,000 

11,400

Runoff in 

ao re-feet

563,000 

652,500 

901,300

8,330,000

1,060,000 

960,800 

871,900 

686,800 

573,400 

529,100 

487,100 

577,800 

655,600

8,519,000
42 DIVERSIONS AND RETURN PLOWS AT AND BELOW IMPERIAL DAM

Location. - Water-stage recorder, lat. 32°5£'35", long. 114°27 I 15", in SE-jSWi;- nee. 30, T. 

6 S. , R. 21 W. Gila and Salt River meridian, d.<;C>- feet downstream from intake at 

east end of Imperial Dam. Datura of gage is 16fi.OO feet above mean sea level, datum 

of 1929.

Records available.- August 1943 to September 1349.

Extremes. - Maximum discharge during year, 454 se-'cnd-feet Apr. 7; maximum gage height, 

Ib.ot _feet Oct. 8; no flow on several days. ._

1943-49: Maximum discharge, 776 'gage height, 16.44

feet); no flow several days in 1P47 and ly49,

Remarks.- Records good except those below 50 second-feet, which are fair. Gila Gra

rom Colorado River at left end of Imperial Dam. Water is

used for irrigation of lands in Arizona. Diversion to this canal began Aug. 17, 1P42

Discharge, In second-feet, water year October 1943 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

134 

134 

156 

300 

274

257

236

256 

214 

174

178 

213 

214 

158 

170

148 

140 

26

57

187 

154 

117 

123 

132

118 

131 

131 

131 

131 

131

Nov.

132 

124 

148 

173 

149

79 

74 

151 

124 

132

139 

110 

98 

118 

208

132 

127 

160 

201 

143

154 

155 

153 

128 

113

142 

117

48 

127 

146

Dec.

112

106 

107 

88 

10?

129

127 

128 

108 

120

£6 

30 

121 

151 

131

154 

98

13 

44 

134

130 

62 

18 

46 

24

20 

21 

73 

68 

67 

74

Jan.

79

38 

52 

106 

84

82 

108 

109 

54 

119

150

43 

1

36

11 

21 

46 

8 

29

1 

0 

0 

0 

0

0 

66 

54 

119 

11 

23

Feb.

23 

44 

52 

93 

73

35 

35 

1 

0 

106

195 

104 

95 

102 

128

154 

170 

177 

177 

150

141 

165 

190 

217

202

152 

113 

134

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Maro 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

124 

118 

163 

174 

184

182 

183 

180 

188 

234

242 

156 

140 

211 

231

"08 

184 

150 

148 

129

155 

227 

238 

192 

154

110 

79 

138 

165 

147 

112

Apr.

76 

114 

131 

184 

177

225 

273

220 

165 

143

252 

274

269 

260 

235

226 

229 

278 

373 

366

248 

253

209 

237

245 

260 

252 

258 

262

Secondfoot -days

4,827 

3,994 

2,665

75,058

1,452 

3,227 

5,246 

6,705 

7,645 

6,832 

7,547 

7,239 

8,314

65,693

May

265 

249 

277 

273

268 

251 

26E 

263 

258

250 

354 

264

£38 

201

199 

222 

261 

352 

241

261 

238 

226 

232 

283

269 

272 

234 

210 

204 

314

Maximum

274 

208 

154

443

150 

217 

243 

278 

282 

279 

381 

346 

379

381

June

251

238 

248 

254 

255

267 

254 

252 

252 

240

320 

183 

165 

180

238

261 

243 

253 

229 

18fi

167 

146 

173 

266 

279

236 

185 

267 

216 

228

July

231 

225 

207 

328 

255

300 

280 

271 

334 

2R4

50 

~279 381 

358 

358

281 

260 

360 

279 

255

250 

270 

220 

140 

184

140 

340 

221 

163 

206 

257

Minimum

48 

13

2

0 

0 

79 

7fi 

199 

146 

50 

139 

160

0

Aug.

290

318 

293 

248 

178

139 

140 

208 

179

295

308 

381 

205 

169 

274

276 

258 

224 

177 

170

143 1'4 

181 

192

232

247 

252 

247 

269

336 

346

Mean

156 

133 

86.0

205

46.8 

115 

169 

224 

247 

228 

243- 

234 

277

180

Sept.

379 

334 

302 

261 

322

236 

248 

308 

354 

272

188 

160 

258 

277 

272

293 

279 

287 

288 

306

310 

305 

298 

214 

184

259 

283 

301 

265 

219

Runoff In 

acre-feet

9,570 

7,920 

5,290

148,900

2,880 

6,400 

10,410 

13,300 

15,160 

13,550 

14,970 

14,360 

16,490

130,300
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 43

Location.- Water-stage recorder, lat. 32 3 52'15", long. 114°28'50", in SEjjNWij sec. 17, T. 15 

"U., H. 24 E. San Bernardino meridian, 6,000 feet downstream from intake at west end of 

Imperial Dim and 13J miles upstream from turnout to Yuma Main Canal. Datum of gage is 

15n. vi feet above mean sea level, datum of 1929 (subject tc undetermined changes caused 

by earthquake of May IS, 1340).

Records available.- G?tob

- Maximum discharge during year, 13.100 second-feet Apr.

minimum iaily Jischarge, 3,610 second-feet De

age height, 22.16

Remarks.- Records excellent. Al.-Ameriean Canal diverts water from Colorado River at

Imperial Dam. Water is used for power development and for irrigation in Yuma, Coachella, 

and Imperial Valleys. Water If diverted from All-American Canal through Pilot Knob 

wasteway to Alamo Canal for irrigaticn in Mexico. First diversion to All-American 

Canal began February 1939 but prior to October 1940 was used only for priming canal.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8,340 

8,130 

7,970 

8,020 

8,600

8,910 

8,530 

8,240 

8,050 

7,880

7,410 

7,240 

7,320 

7,260 

7,240

7,210 

6,120 

3,680 

5,500 

5,910

5,670 

5,770 

5,950 

5,710 

6,010

6,240 

6,520 

6,550 

6,980 

7,310 

6,980

Nov.

6,770 

7,100 

7,320 

7,270 

7,050

7,110 

7,020 

6,430 

5,930 

5,750

5,580 

5,360 

5,710 

5,490 

5,220

5,170 

5,160 

5,080 

4,800 

4,820

4,630 

4,940 

4,950 

4,580 

4,360

4,420

4,440 

4,330 

4,540 

4,650

Dec.

4,730 

4,470 

4,280 

4,420 

3,660

4,050 

3,740 

4,120 

4,370

4,340

4,220 

3,900

4,050 

4,200 

4,440

4 , 400 

3,770 

3,780 

3,610 

3,690

4,450 

4,880 

3,970 

4,090 

4,100

4,140 

4,410 

4,790 

4,780 

4,620 

4,330

Jan.

4,210 

4,200 

4,370 

4,980 

5,400

5,720 

6,000 

6,140 

5,920 

6,240

6,420 

4,570 

4,290 

4,010 

3,960

3,960 

4,420 

3,980 

3,980 

4,000

4,050 

3,890 

3,900 

4,090 

4,050

4,060 

4,240 

4,050 

3,870 

3,660 

4,140

Feb.

4,190 

4,080 

3,960 

3,980 

4,070

3,670 

4,130 

4,210 

4,330 

4,710

5,040 

4,910 

4,870 

5,260 

6,140

6,120 

5,940 

6,540 

6,460 

6,140

6,350 

6,800 

6,910 

6,900 

6,960

6,760 

6,450 

6,570

Month

Oeto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

6,530 

6,520 

6,450 

6,660 

6,440

5,990 

6,490

7,030 

6,860 

6,880

7,210 

7,140 

6,960 

7,230 

7,410

7,410 

7,580 

7,520 

7,330 

6,920

7,060 

7,270 

7,290 

7,580 

7,160

6,780 

6,850 

9,240 

10,700 

11,100 

11,300

Apr.

11,600 

11,500 

11,000 

11,300 

12,000

12,200 

12,000 

11,600 

11,000 

10,500

11,000 

11,600 

11,600 

11,800 

12,200

11,600 

11,100 

11,700 

12,000 

11,700

11,500 

11,800 

11,700 

11,300 

10,800

11,000 

10,500 

11,000 

10,800 

10,100

Secondfoot-days

217,260 

165,980 

130,800

2,802,090

140,780 

152,450 

230,890 

341,500 

243,750 

293,800 

349,700 

333,500 

284,790

2,885,200

May

9,300 

9,420 

9,290 

9,150 

9,020

8,630 

8,520 

7,940 

8,170 

8,080

8,160 

7,840 

7,730 

8,060 

7,210

7,280 

7,250 

7,300 

7,370 

7,290

7,020 

6,740 

6,530 

7,010 

7,470

8,000 

7,970 

7,980 

7,640 

7,400 

6,980

Maximum

8,910 

7,320 

4,880

11,400

6,430 

6,960 

11,300 

12,200 

9,420 

11,900 

12,200 

11,900 

10,000

12,200

June

7,520 

7,510 

7,680 

7,960 

8,170

9,060 

9,170 

8,970 

9,000 

9,390

9,380 

9,650 

9,940 

10,200 

9,900

10,100 

10,200 

10,200 

10,400 

10,400

10,600 

10,500 

10,900 

11,500 

11,000

10,500 

10,200 

10,800 

11,900 

11,100

July

11,100 

10,800 

10,500 

10,100 

10,300

10,800 

11,100 

11,600 

11,200 

10,700

10,800 

10,900 

11,100 

11,500 

11,600

11,600 

11,600 

11,500 

11,600 

11,600

11,900 

12,200 

11,800 

11,300 

11,200

11,400 

11,600 

11,800 

11,700 

11,700 

11,100

Minimum

3,680 

4,330 

3,610

3,380

3,660 

3,670 

5,990 

10,100 

6,530 

7,510 

10,100 

9,640 

8,810

3,610

Aug.

11,200 

11,300 

11,800 

11,900 

11,600

11,300 

11,100 

11,000 

11,100 

11,300

10,900 

11,200 

11,200 

10,600 

10,500

10,600 

10,500 

10,800 

10,600 

10,300

10,100 

10,300 

10,600 

10 500 

10,700

10,400 

10,400 

10,000 

10,100 

9,960 

9,640

Mean

7,008 

5,533 

4,219

7,656

4,541 

5,445 

7,448 

11,383 

7,863 

9,793 

11,281 

10,758 

9,493

7,905

Sept.

9,820 

9,850 

9,920 

9,850 

9,820

9,390 

9,360 

9,540 

10,000 

9,350

9,640 

9,020 

8,850 

8,810 

9,170

9,280 

9,330 

9,160 

9,510 

9,530

9,520 

9,810 

9,360 

9,390 

9,350

9,800 

9,630 

9,590 

9,520 

9,620

Runoff In 

aere-feet

430,900 

329,200 

259,400

5,558,000

279,200 

302,400 

458,000 

677,400 

483,500 

582,700 

693,600 

661,500 

564,900

5,723,000
44 DIVERSIONS AND RETURN PLOWS AT AND BELOW IMPERIAL DAM

All-American Canal above Pilot Knob wasteway, Calif.

Locaticn.- Water-stage recorder, lat . 32°45'00", long. 114°42'20", in WW^SE^ sec. 24, T. 1&. 

o. , H. 21 E. San Bernardino meridian, at bridge on U. S. Highway 80, 1.1 miles upstream 

from Pilot Knob wasteway, 5 miles downstream from turnout to Yuma Main Canal, 5j miles 

ncrthwest of Yama, and 19j miles downstream from intake at Imperial Dam. Datum of gage 

is 148.52 feet above mean sea level, datum of 1929. Auxiliary water-stage recorder, in 

^- sec. 15, T. 16 S., R. 22 E., on wash overshoot structure 4.4 miles upstream.

Records September 1949

1S4U .

Remarks.- Re:ords excellent. Discharge computed by using fall as determi 

water-stage recorder as a factor. First flow in All-American Canal at 

Feb. 5, 1939.

lined by auxiliary 

' this point began

Discharge, in second-feet, water year October 1948 to September 1949

*jy

i

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6 160 

5,940 

5,700 

5,630 

6,200

6,220 

6,120 

5,800 

5,660 

5,550

5,010 

4,820 

4,960 

4,910 

4,950

4,950 

4,350 

2,220 

2,990 

3,520

3,410 

3,590 

3,720 

3,520 

3,610

3,780 

4,100 

4,210 

4,550 

4,870 

4,560

Nov.

4,380 

4,700 

4,930 

4,900 

4,840

4,910 

4,930 

4,660 

4,630 

4,420

4,300 

4,060 

4,280 

4,120 

3,810

3,790 

3,810 

3,740 

3,630 

3,620

3,440 

3,520 

3,570 

3,300 

3,090

3,140 

3,160 

3,090 

2,190 

3,330

Dec.

3,320 

3,120 

2,960 

3,180 

2,470

2,690 

2,370 

2,770 

3,050 

3,060

2,970 

2,730 

2,740 

2,950 

3,080

3,010 

2,620 

2,510 

2,250 

2,270

2,610 

2,630 

1,800 

1,890 

1,790

1,840 

2,170 

2,500 

2,500 

2,430 

2,230

Jan.

2,070 

2,110 

2,150 

2,570 

3,070

3,370 

3,640 

3,740 

3,560 

3,760

3,970 

2,800 

2,190 

2,140 

2,080

1,900 

2,320 

1,990 

2,000 

2,030

2,160 

1,920 

1,950 

2,150 

2,010i

2,040 

2,170 

1,980 

1,720 

1,580 

2,070

Feb.

2,010 

1,890 

1,910 

1,880 

2,050

1,520 

1,990 

2,070 

2,100 

2,520

2,690 

2,750 

2,750 

2,960 

2,760

3,880 

3,770 

4,290 

4,300 

4,OOO

4,100 

4,470 

4,500 

4,670 

4,680

4,450 

4,170 

4,110

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ......................

Mar.

,110 

,120 

,100 

,320 

,180

,800 

,150 

,680 

,490 

,540

,920 

,870 

,680 

,830 

,990

,050 

,180 

,080 

,030 

,710

,620 

,850 

,960 

,190 

,830

4,500 

4,510 

6,520 

8,020 

8,530 

8,970

Apr.

9,270 

9,190 

8,760 

8,850 

9,460

9,600 

9,570 

9,190 

8,720 

8,240

8,550 

9,170 

9,190 

9,310 

9,680

9,180 

8,780 

9,210 

9,500 

9,230

9,180 

9,570 

9,500 

9,180 

8,600

8,640 

8,270 

8,690 

8,700 

7,970

Secondfoot -days

145,580 

119,290 

80,510

2,030,820

75,210 

90,240 

157,330 

270,950 

174,550 

222,890 

277,460 

261,400 

212,890

2,088,300

May

7,270 

7,220 

7,080 

6,940 

6,760

6,410 

6,330 

5,750 

5,910 

5,750

5,870 

5,590 

5,410 

5,860 

5,070

4,890 

4,910 

5,010 

5,270 

5,060

4,790 

4,640 

4,270 

4,770 

5,160

5,700 

5,640 

5,710 

5,470 

5,220 

4,820

Maximum

6,220 

4,930 

3,320

9,120

3,970 

4,680 

8,970 

9,680 

7,270 

9,330 

9,830 

9,380 

7,650

9,830

June

5,230 

5,450 

5,520 

5,820 

6,130

6,600 

6,740 

6,610 

6,630 

7,050

7,060 

7,340 

7,480 

7,750 

7,580

7,760 

7,860 

7,880 

8,090 

7,990

8,150 

8,050 

8,400 

8,880 

8,630

8,160 

7,850 

8,170 

9,330 

8,700

July

8,760 

8,450 

8,260 

7,840 

7,930

8,290 

8,610 

9,100 

8,880 

8,490

8,460 

8,520 

8,760 

9,200 

9,310

360 

400 

190 

400 

340

9,640 

9,830 

9,570 

9,000 

8,940

9,010 

9,170 

9,360 

9,290 

9,300 

8,800

Minimum

2,220 

3,090 

1,790

1,790

1,580 

1,520 

3,800 

7,970 

4,270 

5,230 

7,840 

7,330 

6,530

1,520

Aug.

8,740 

8,870 

9,310 

9,380 

9,200

8,880 

8,670 

8,640 

8,740 

8,900

8,660 

8,970 

8,930 

8,510 

8,270

8,350 

8,330 

8,540 

8,480 

8,200

7,820 

7,990 

8,210 

8,120 

8,270

8,050 

8,050 

7,750 

7,670 

7,570 

7,330

Mean

4,696 

3,976 

2,597

5,549

2,426 

3,223 

5,075 

9,032 

5,631 

7,430 

8,950 

8,432 

7,096

5,721

Sept.

7,450 

7,520 

7,650 

7,620 

7,500

7,040 

7,110 

7,270 

7,650 

7,190

7,500 

6,810 

6,560 

6,530 

6,890

7,000 

6,930 

6,690 

6,860 

6,940

6,890 

7,200 

6,810 

6,860 

6,840

7,090 

7,100 

7,160 

7,100 

7,130

Runoff In 

acre-feet

288,800 

236,600 

159,700

4,028,000

149,200 

179,000 

312,100 

537,400 

346,200 

442,100 

550,300 

518,500 

422,300

4,142,000
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 45 

Yuma Main Canal at siphon-drop power plant, near Yuma, Arlz.

Location.- Water-stage recorders on forebay and tallrace at power plant, lat. 32°46'35", 

 long. 114°38'05", in SEij-SEij sec. 10, T. 16 S., R. 22 E. San Bernardlno meridian, 500 

feet from turnout in All-American Canal to Yuma Main Canal, 4 miles north of Yuma, and 

14j miles downstream from intake of All-American Canal at Imperial Dam. Datum of each 

gage is at mean sea level, Yuma project datum, or 0.70 foot above mean sea level, d.atum 

of 1929 (subject to undermined changes caused by earthquake of May 18, 1940).

Records available.- July 1926 to September 1949 (prior to October 1938 monthly discharge 

only, published in Water-Supply Paper 1049).

Extremes.- Maximum daily .discharge during year, 2,030 se"ond-feet on several days in

December and January; minimum daily, 1,060 second-feet on several days in November and 

December.

1930-49: Maximum daily discharge, 2,040 second-feet Nov. 11, 1943; no flow on some 

days in 1937, 1938, 1939, 1945.

Remarks.- Records excellent. Daily discharge determined from flow through turbines, computed from relation between discharge, head, and gate openings. Bypass discharge 

through waste gates this year was leakage only and is included in record. Rating of 

turbines checked by current-meter measurements. Records show quantity of water diverted from All-American Canal to Yuma Main Canal, except that diverted from forebay 

of power plant to Walapai Canal. Water noE needed for irrigation on Yuma project is 

returned to Colorado River through Yuma Main Canal wasteway, 3^ miles downstream.

The combined diversions by several small canals from the All-American Canal and by 

Walapai Canal from Yuma Main Canal, above the power plant, and the combined diversions 

by several small canals from the Yuma Main Canal between siphon-drop power plant and 

Yuma Main Canal Wasteway are shown in the last two columns of monthly table.

Cooperation.- Record of turbine gate openings and diversions furnished by Bureau of 

Reclamation.

Discharge, in second-feet, water year October 1948 to September 1949

Daj

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,96"0 

1,970 

1,970 

1,960 

1,960

1,960 

1,970 

1,970 

1,970 

1,970

1,960 

1,960 

1,960 

1,960 

1,970

1,970 

1,970 

1,970 

1,970 

1,970

1,970 

1,970 

1,970 

1,970 

1,970

1,970 

1,970 

1,970 

1,970 

1,970 

1,980

Nov.

1,960 

1,960 

1,970 

1,970 

1,980

1,980 

1,970 

1,520 

1,070 

1,060

1,070 

1,060 

1,070 

1,060 

1,060

1,060 

1,060 

1,070 

1,060 

1,070

1,070 

1,070 

1,070 

1,060 

1,060

1,060 

1,060 

1,070 

1,060 

1,060

Dec.

1,070 

1,060 

1,060 

1,060 

1,060

1,070 

1,060 

1,060 

1,060 

1,060

1,060 

1,060 

1,060 

1,070 

1,060

1,060 

1,060 

1,060 

1,070 

1,060

1,420 

2,020 

2,020 

2,030 

2,030

2,030 

2,020 

2,020 

2,030 

2,020 

2,020

Month

Octc 

HOVE 

Decs

Jam. 

Pebi 

Marc 

Aprl

Mnv

June 

Julj 

Augx 

Sept

We

mber ...............

lendar year 1948...

h........ ..........

ter year 1948-49. . .

Jan.

2,020 

2,020 

2,020 

2,020 

2,020

2,020 

2,020 

2,020 

2,020 

2,020

2,020 

2,020 

2,020 

2,020 

2,020

2,030 

2,020 

2,020 

2,020 

2,020

2,020 

2,020 

2,020 

2,020 

2,020

2,020 

2,020 

2,010 

2,010 

2,010 

2,000

Secondfoot-days

61,000 

38,720 

42,900

681,180

62,580 

56,150 

62,350 

60,330 

62,070 

60,020 

62,360 

62,460 

60,220

691,160

Feb.

2,000 

2,010 

2,010 

2,010 

2,000

2.OOO 

2,000 

2,010 

2,010 

2,010

2,000 

2,000 

2,000 

2,000 

2,000

2,000 

2,010 

2,010 

2,010 

2,010

2,010 

2,000 

2,010 

2,000 

2,010

2,010 

2,010 

2,000

Mar.

2,ooo 

2,000 

2,000 

2,000 

2,010

2,010 

2,000 

2,010 

2,O10 

2,000

2,020 

2,010 

2,020 

2,010 

2,010

2,010 

2,010 

2,020 

2,020 

2,010

2,010 

2,010 

2,020 

2,010 

2,020

2,020 

2,020 

2,020 

2,020 

2,010 

2,010

Apr.

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

020

010

020

010

010

020 

010 

020 

020 

020

010 

010 

010 

010 

010

010 

020 

010 

010 

010

010 

000 

010 

010 

000

000 

010 

010 

010 

000

Hay

2,000 

2,010 

2,000 

2,000 

2,000

2,000 

2,000 

2,000 

2,010 

2,000

2,000 

2,000 

2,000 

2,000 

2,010

2,010 

2,000 

2,000 

2,000 

2,010

2,000 

2,000 

2,000 

2,000 

2,000

2,000 

2,000 

2,010 

2,000 

2,000 

2,010

Discharge in second-feet

Maximum Minimum

1,980 1,960 

1,980 1,060 

2,030 1,060

2,030 10

2,030 2,000 

2,010 2.0QO 

2,020 2,000 

2,020 2,000 

2,010 2,000 

2,010 2,000 

2,020 1,990 

2,020 2,010 

2,020 2,000

2,030 1,060

Mean

1,968 

1,291 

1,384

1,861

2,019 

2,005 

2,011 

2,011 

2,002 

2,001 

2,012 

2,015 

2,007

1,894

Run 

acr

June

2,010 

2,000 

2,000 

2,000 

2,000

2,010 

2,000 

2,000 

2,000 

2,000

2,000 

2,000 

2,000 

2,000 

2,000

2,000 

2,000 

2,000 

2,000 

2,000

2,000 

2,000 

2,000 

2,000 

2,000

2,000 

2,000 

2,000 

2,000 

2,000

e-feet

121,000 

76,800 

85,090

1,351,000

124,100 

111,400 

123,700 

119,700 

123,100 

119,000 

123,700 

123,900 

119,400

1,371,000

July

2,010 

2,000 

2,000 

2,010 

2,010

2,000 

2,000 

2,000 

2,000 

2,000

2,000 

2,000 

2,000 

1,990 

2,020

2,020 

2,020 

2,020 

2,020 

2,020

2,020 

2,020 

2,020 

2,020 

2,020

2,020 

2,020 

2,020 

2,020 

2,020 

2,020

Aug.

2,020 

2,020 

2,020 

2,020 

2,020

2,020 

2,020 

2,020 

2,020 

2,010

2,010 

2,010 

2,010 

2,010 

2,010

2,010 

2,010 

2,010 

2,010 

2,020

2,020 

2,010 

2,010 

2,010 

2,020

2,020 

2,020 

2,020 

2,010 

2,010 

2,010

Sept.

2,010 

2,020

2)020 

2,020

2,010 

2,010 

2,010 

2,010 

2,010

2,010 

2,010 

2,010 

2,010 

2,010

2,010 

2,010 

2,000 

2,010 

2,010

2,000 

2,000 

2,000 

2,000 

2,000

2,000 

2,000 

2,000 

2,000 

2,000

Above 

power 

plant

4,880 

4,650 

3,070

31,050

1,210 

4,240 

6,860 

6,690 

4,610 

4,360 

6,000 

5,820 

4,560

56,950

Between power 

plant and 

wasteway

30O 

403 

319

4,640

133 

476 

839 

710 

484 

369 

383 

331 

355

5.100
46 DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM

Yuma Main Canal below Colorado River siphon, at Yuma, Ariz.

Location.- Two gages determine head on Colorado River siphon. At iritake, water-stage

 recorder, lat. 32°43'50", long. 114°37'10", in SW£SE£ sec. 26, T. 16 S., R. 22 E. 

San Bernardino meridian, on California side of river, 1,645 feet downstream from 

center of Yuma Main Canal wasteway gates and 3f- miles downstream from siphon-drop 

power plant. At outlet, water-stage recorder in NWpEv sec. 35, T. 16 S., R. 22 E. 

San Bernardino meridian, on Arizona side of river. Both gages are a quarter of a 

mile downstream from highway bridge oven Colorado River at Yuma. Datum of each gage 

Is 100.03 feet above mean sea level, Yuma project datum, or 100.57 feet, datum of 1929.

Records available.- January 1924 to September 1949 (prior to October 1938 monthly discharge 

only, published in Water-Supply Paper 1049).

Extremes.- Maximum daily discharge during year, 774 second-feet Apr. 12; minimum daily,

 10 second-feet Dec. 24, 25, Jan. 14, 15.

1930-49: Maximum daily discharge, 855 second-feet Mar. 2, 4, 1931; no flow during 

short periods in most years.

Remarks.- Records excellent except those below 100 second-feet, which are poor. Daily 

discharge computed from relation between discharge and head on siphon, which Is the 

difference between stages at intake and outlet gages. Records show quantity of water 

delivered through Colorado River siphon for irrigation on Valley division of the Yuma 

project and for supplementary municipal supply for city of Yuma. Records of chemical 

analyses for the water year 1949 are given in Water-Supply Paper 1163.

Cooperation.- Record of diversion for supplementary municipal supply for city of Yuma 

collected by Arizona Edison Co.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

674

631

567

677

680

669

663

625

558

525

661

674

676

673

649

563

468

366

520

508

500

510

473

431

598

597

567

570

567

560

533

Nov.

675

669

650

635

619

576

481

640

631

631

590

583

525

485

607

610

606

583

515

473

463

558

546

535

527

501

414

400

584

545

-

Dec.

538

511

473

436

424

526

514

448

444

414

387

367

570

55Z

480

421

381

368

339

560

553

485

345

10

10

19

576

516

479

445

415

Month

October, 

November

December. .............

Calendar year 1948. .

January. ..............

February. .............

March. ................

April .................

May. ..................

June ..................

July. .................

August. ...............

September. ............

Water year 1948-49..

Jan.

380

392

558

577

577

595

513

447

406

648

632

425

131

10

10

29

412

585

380

348

331

295

287

356

93

118

118

118

108

135

419

Feb.

400

370

338

338

319

284

452

403

413

350

209

302

306

468

474

474

458

454

409

350

598

630

624

596

580

554

497

711

_

_

-

Secondfoot-days

17,933 

16,857

13,006

203,310

10,233

12,361

19,044

19,613

17,557

15,968

16,725

20,299

19,622

199,218

Mar.

738

739

709

678

584

545

683

636

613

609

562

500

458

693

705

702

686

609

466

433

703

703

623

577

586

517

484

652

601

626

624

Apr.

620

556

504

680

689

648

655

622

573

558

743

774

764

767

750

681

588

730

738

743

745

695

494

455

709

683

658

623

633

535

-

Hay

470

667

669

672

625

594

503

419

652

659

657

642

550

388

376

664

636

530

537

532

495

465

624

660

656

596

525

481

445

602

566

Discharge in second-feet

Maximum

680 

675

576

734

648

711

739

774

672

642

675

694

699

774

Minimum

366 

400

10

0

10

209

433

455

376

419

91

534

450

10

Mean

578 

. 562

420

555

330

441

614

654

566

532

540

655

654

546

June

542

535

532

505

431

606

595

583

569

526

478

450

559

529

550

530

537

534

517

589

547

526

502

457

419

420

642

635

613

550

-

July

506

224

91

133

114

641

635

626

585

536

598

601

604

617

598

528

489

630

622

599

606

611

554

524

661

675

670

667

640

595

545

Runoff In

acre-feet

35,570 

33,440

25,800

403,300

20,300

24,520

37,770

38,900

34,820

31,670

33,170

40,260

38,920

395,100

Aug.

646

682

677

673

639

551

534

671

693

687

680

672

662

649

689

688

681

691

675

642

642

667

877

628

621

637

625

594

676

676

674

r Sept.

670

631

559

450

584

643

633

653

672

665

655

670

674

675

675

669

661

639

664

657

671

678

675

676

670

684

680

694

696

699

-

Diversion for

Yuma municipal

supply 

(aere-feet)t

93

0

20

489

40

.9

180

198

12

127

376

259

286

1,590

t Included in first 5 columns of table.
DIVERSIONS AND RETURN PLOWS AT AND BELOW IMPERIAL DAM 47 

Yuma Main Canal wasteway at Yuma, Ariz.

Location.- Yuma Main Canal wasteway receives water from Yuma Main Canal at gates, lat.

 i)2 u 44'00", long. 114°37'20", in SW^SE^- sec. 26, T. 16 S., R. 22 E. San Bernardino

meridian, 1,645 feet upstream from intake of Colorado River siphon on Yuma Main Canal, 

half a mile north of Yuma, and 3-5- miles downstream from siphon-drop power plant on 

Yuma Main Canal. The wasteway discharges into Colorado River half a mile downstream 

from station on Colorado River at Yuma.

Records available.- April 1913 to September 1949.

Extremes.- Maximum daily discharge during year, 2,020 second-feet Dec. 24, 25; minimum 

daily, 415 second-feet Nov. 10.

1930-49: Maximum daily discharge, that of Dec. 24, 25, 1948; no flow for several 

days in 1937, 1938, 1939 1945.

Remarks.- Record good. Discharge computed as difference between discharge of Yuma Main 

Canal at siphon drop power plant and that of same canal below Colorado River siphon, 

with deduction for small irrigation diversions from canal between those stations. 

Records do not include flow of California Drainage Canal which discharges into the 

wasteway a quarter of a mile above its mouth.

Discharge, in second-feet, water year Octoberl948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

0 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,290 

1,340 

1,400 

1,280 

1,280

1,280 

1,290 

1,340 

1,410 

1,440

1,290 

1,280 

1,280 

1,290 

1,320

1,410 

1,500 

1,600 

1,440 

1,450

1,460 

1,440 

1,480 

1,540 

1,360

1,370 

1,400 

1,400 

1,400 

1,410 

1,450

Nov.

1,280 

1,280 

1,310 

1,330 

1,360

1,400 

1,480 

865 

423 

415

464 

468 

539 

573 

446

440 

440 

472 

537 

594

603 

507 

522 

522 

532

559 

642 

670 

468 

515

Dec.

532 

545 

581 

617 

636

539 

546 

607 

611 

636

663 

685 

487 

514 

576

635 

679 

692 

731 

490

857 

1,520 

1,660 

2,020 

2,020

2,010 

1,440 

1,490 

1,540 

1,570 

1,600

Jan.

1,630 

1,630 

1,450 

1,430 

1,440

1,420 

1,510 

1,570 

1,600 

1,360

1,380 

1,600 

1,890 

2,010 

2,010

2,000 

1,610 

1,640 

1,640 

1,670

1,690 

1,720 

1,730 

1,660 

1,930

1,900 

1,900 

1,890 

1,900 

1,880 

1,580

Feb.

1,590 

1,640 

1,670 

1,670 

1,680

1,720 

1,540 

1,600 

1,590 

1,660

1,790 

1,700 

1,690 

1,520 

1,520

1,520 

1,540 

1,540 

1,600 

1,660

1,390 

1,350 

1,360 

1,380 

1,430

1,440 

1,500 

1,290

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

Ma«

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

1,240 

1,240 

1,280 

1,310 

1,410

1,460 

1,310 

1,360 

1,380 

1,360

1,440 

1,490 

1,540 

1,290 

1,290

1,290 

1,310 

1,400 

1,540 

1,560

1,300 

1,300 

1,390 

1,420 

1,420

1,490 

1,530 

1,360 

1,410 

1,380 

1,370

Apr.

1,380 

1,450 

1,500 

1,320 

1,300

1,350 

1,340 

1,390 

1,440 

1,460

1,260 

1,220 

1,230 

1,220 

1,250

1,320 

1,430 

1,270 

1,260 

1,250

1,250 

1,290 

1,510 

1,560 

1,290

1,310 

1,340 

1,380 

1,360 

1,450

Secondfoot -days

42,920 

21,656 

29,729

475,416

52,270 

43,580 

42,870 

40,380 

44,250 

43,840 

45,420 

41,990 

40,420

489,325

May

1,530 

1,340 

1,320 

1,320

1,360

1,390 

1,480 

1,570 

1,340 

1,330

1,330 

1,350 

1,440 

1,600 

1,630

1,340 

1,360 

1,470 

1,460 

1,480

1,500 

1,540 

1,360 

1,320 

1,330

1,400 

1,460 

1,520 

1,560 

1,390 

1,430

Maximum

1,600 

1,480 

2,020

2,020

2,010 

1,790 

1,560 

1,560 

1,630 

1,580 

1,910 

1,490 

1,570

2,020

June

1,460 

1,460 

1,460 

1,490 

1,570

1,390 

1,380 

1,400 

1,420 

1,470

1,520 

1,550 

1,450 

1,460 

1,460

1,460 

1,460 

1,460 

1,480 

1,410

1,450 

1,470 

1,490 

1,540 

1,580

1,580 

1,350 

1,350 

1,380 

1,440

July

1,500 

1,780 

1,910 

1,880 

1,890

1,350 

1,360 

1,360 

1,400 

1,450

1,400 

1,390 

1,390 

1,360 

1,410

1,480 

1,520 

1,380 

1,390 

1,420

1,410 

1,400 

1,450 

1,490 

1,350

1,340 

1,340 

1,340 

1,380

Iy420

1,480

Minimum

1,280 

415 

487

10

1,360 

1,290 

1,240 

1,220 

1,320 

1,350 

1,340 

1,310 

1,290

415

Aug.

1,360 

1,320 

1,340 

1,350 

1,380

1,470 

1,490 

1,340 

1,320 

1,320

1,320 

1,330 

1,340 

1,360 

1,320

1,320 

1,320 

1,310 

1,320 

1,370

1,380 

1,340 

1,320 

1,380 

1,400

1,380 

1,390 

1,420 

1,330 

1,320 

1,330

Mean

1,335 

722 

959

1,299

1,686 

1,556 

1,383 1,346* 

1,427 

1,461 

1,465 

1,355 

1,347

1,341

Sept.

1,330 

1,390 

1,450 

1,570 

1,420

1,350 

1,360 

1,360 

1,330 

1,340

1,350 

1,330 

1,330 

1,320 

1,330

1,340 

1,340 

1,360 

1,340 

1,350

1,330 

1,320 

1,320 

1,320 

1,330

1,310 

1,310 

1,300 

1,290 

1,300

Runoff in 

acre-feet

85,130 

42,950 

58,970

943,000

103,700 

86,440 

85,030 

80,090 

87,770 

86,960 

90,090 

83,290 

80,170

970,600
48 DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 

Pilot Know wasteway near Pilot Knob, Calif.

Location.- Tape gages on wasteway gates to show openings, lat. 32 0 44'15", long. 114°42'55", 

in NW^SW^ sec. 25, T. 16 S., R. 21 E. San Bernardino meridian, 2 miles east of summit 

of Pilot Knob, 6 miles west of Yuma, Ariz., and 20.8 miles downstream from intake of 

All-American Canal at Imperial Dam. Auxiliary water-stage recorder on All-American 

Canal, 550 feet upstream from wasteway gates, to show head. Datum of auxiliary gage 

is at mean sea level, datum of 1929.

Records available.- February 1939 to September 1349. Prior to 1944, flow, by periods,

published in Water-Supply Paper 1009.

Extremes.- Maximum daily discharge during year, 4,020 seoond-feet Apr. 5, July 15, 16; no 

 flow Oct. 12 to Mar. 26.

1939-49: Maximum daily discharge, 4,460 second-feet July 24, 1944; no flow during 

long periods.

Remarks.- Records excellent. Daily discharge computed from head, and openings of wasteway gates, rated by current-meter measurements made in Alamo Canal, and by difference 

of measured flow made above and below the wasteway in All-American Canal. Record shows 

water diverted_ from All-American Canal to Alamo Canal for use in Mexico or for return 

to Colorado Ri'ver through Roekwood gate. Pilot Knob Wasteway completed in summer of 

1938 and first flow occurred Feb. 5, 1939.

Cooperation.- Record of gate openings furnished by Bureau of Reclamation.

Discharge, In Second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,160 

1,110 

1,060 

984 

701

588 

599 

594 

606 

577

137 

0 

0 

0 

0

0 

0 

0 

0 

0

O 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948 -49 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0

o

0

o

0 

0 

0 

0 

0

0 

294 

2,310 

3,690 

3,960 

4,000

Apr.

4,010 

4,000 

3,990 

3,990 

4,020

4,010 

3,960 

3,920 

3,940 

3,950

3,940 

3,810 

3,720 

3,690 

3,680

3,690 

3,730 

3,740 

3,730 

3,650

3,560 

3,520 

3,450 

3,210 

3,000

2,790 

2,620 

2,560 

2,460 

2,270

Secondfoot-days

8,116 

0 

0

536,540

0 

0 

14,254 

106,610 

28,221 

84,471 

122,510 

118,280 

80,070

562,532

May

2,100 

2,050 

1,920

1,830 

1,640

1,390 

1,230 

1,110 

1,030 

878

871 

759 

723 

736 

573

487 

487 

470 

398 

371

351 

433 

484 

600 

631

644 

684 

715 

871 

882 

873

Maximum

1,160 

0 

0

4,000

0 

0 

4,000 

4,020 

2,100 

3,810 

4,020 

4,010 

3,640

4,020

June

917 

890 

830 

864 

1,320

1,800 

2,010 

2,100 

2,160 

2,430

2,610 

2,800 

3,030 

3,140 

3,210

3,170 

3,260 

3,400 

3,530 

3,670

3,710 

3,680 

3,680 

3,710 

3,730

3,800 

3,810 

3,760 

3,760 

3,690

July

3,680 

3,770 

3,860 

3,870 

3,860

3,780 

3,830 

3,860 

3,890 

3,980

4,000 

4,010 

4,010 

4,010 

4,010

4,020 

4,02O 

4,000 

4,010 

4,000

4,OOC 

4,010 

4,000 

4,000 

4,000

4,000 

4,010 

4,010 

4,010 

4,010 

3,990

Minimum

0 

0 

0

0

0 

0 

0 

2,270 

351 

830 

3,680 

3,600 

1,800

0

Aug.

4,000 

4,000 

3,990 

4,010 

3,990

3,990 

4,000 

3,980 

3,910 

3,900

3,890 

3,840 

3,850 

3,800 

3,800

5,840 

3,850 

3,850 

3,840 

3,760

3,690 

3,720 

3,690 

3,600 

3,600

3,610 

3,640 

3,690 

3,690 

3,650 

3,610

Mean

262 

0 

0

1,466

0 

0 

460 

3,554 

910 

2,816 

3,952 

3,815 

2,669

1,541

Sept.

3,600 

3,600 

3,620 

3,640 

3,590

3,520 

3,470 

3,420 

3,250 

3,060

2,990 

2,830 

2,720 

2,660 

2,610

2,450 

2,410 

2,330 

2,260 

2,190

2,080 

2,060 

2,050 

2,040 

2,030

2,020 

1,920 

1,950 

1,900 

1,800

Runoff In 

acre-feet

16,100 

0 

0

1,064,000

0 

0 

28,270 

211,500 

55,980 

167,500 

243,000 

234,600 

158,800

1,116,000
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 49

North Gila Valley Canal at Laguna Dam, Ariz.-Calif. 

(Formerly published as Diversions at Laguna Dam, Ariz.-Calif.

Location - Canal diverts from Arizona end of Laguna Dam, lat. 32°49'05", long. 114°29'15", 

in SWij sec. 14, T. 73., R. 22 W. , 5 miles downstream from Imperial Dam, 9 miles upstream 

from Gila River, and 10 miles northeast of Yuma, Ariz.

Records available.- March 1935 to September 1949.

Remarks,- Water is used for irrigation of North Gila Valley, which lies north of Gila River 

in Arizona. Records show quantity of wate^ diverted from Colorado River less that wasted 

back to river by regulation 500 feet below he-id gate. Records are poor. Discharge 

estimated by gate "tenders in the employ of the Sortn Gila Valley Irrigation District, 

unsupported by discharge measurements or use of gages.

Drain No. 1 returns some water from North Gila Valley District to Colorado River in 

^NW-f sec. 9, T. 83., R. 22 W., 5 miles downstream from Lagona Dam and 14 miles upstream from gage on Colorado River at Yuma. Record of drainage flow computed by Geological Survey from 43 discharge measurements furnished by Bureau of Reclamation.

Two wasteways return excess water at lower end of North Gila Valley District to 

Colorado River in SE^SW^ sec. 4, T, 8 S., R. 22 W., and in SWtj-SE-j: sec. 17, T. 8 S., R. 

22 W., and one wasteway returns water to the Gila River channel in NE^-NW^ sec. 22, T. 8 

S., R. 22 W. Record computed from daily estimates by watermaster. Approximately one 

half of total wasteway flow was returned to Colorado River and one half to Gila River 

channel. None of the return flows to Gila River channel reached the Colorado River as 

surface flow thite year.

Cooperation.- Records of discharge except for Drain No. 1 fur'A^hed by Bureau of Reclamation.

Monthly diversion by North Gila Valley Canal at Lagund Dam, Ari£.-Calif ., 

water year October 1948 tc September 1949

Month

November. ...................

December. ...................

Calendar year 1948, .......

September ...................

W&ter year 1948-49. .......

Discharge in second-feet

Maximum

70 

70 

70

70

70 

70 

70 

70 

70 

70 

70 

70 

70

70

Minimum

0 

0

 ° 

0

30 

0 

0 

0 

O 

0 

0 

0

0

Mean

62.9 

S3. 3

50.6

37.0

40.0 

61.8 

62.9 

65.7 

66.5 

64.3 

51.0 

46.8 

56.3

57.6

Runoft in 

acre-fee;

j , 7 70 

3,110

41,370

2,460 

3,430 

3', 870 

3,910 

4,090 

3,830 

3,130 

2,880 

3,350

41 , 700

rte-'irn flows in acre-feet

Drain

No. 1

377 

288 

246

3,480

246 

282 

355 

373 

357 

294 

288 

307 

490

3,900

Canal 

wasteways

575 

555 

456

6,360

417 

536 

575 

595 

595 

555 

238 

258 

218

5,570
50 DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 

Alamo Canal at Andrade, Calif.

Location.- Staff gage supplemented by water-stage recorder, lat. 32°43'10", long. 114°43'30" 

In SW£SE£ sec. 35, T. 16 S., R. 21 E. San Bernardino meridian, at Andrade, 200 feet upstream from international boundary, 800 feet downstream from Hanlon heading, and l£ 

miles downstream from Rockwood gate.

Records available.- January 1908 to September 1949.

Remarks.- Figures given herein are those of total flow and are generally computed as the 

mean of two current-meter measurements made daily.

Canal receives most of its water from Pilot Knob wasteway (see p. 48), and also 

eeives some water from right side of Colorado River in SE^SE^ sec. 25, T. 16 S., R. 21

E. San Bernardino meridian, at Rockwood gate, 24^ miles downstream from Imperial Dam. 

This year all water from Oct. 1 to Oct. 9, 1948, and Mar. 29 to Sept. 30, 1949, was 

received from Pilot Know wasteway. Water is used for irrigation of lands in Imperial 

Valley in Mexico.

Hanlon heading is a separate set of gates on Alamo Canal, 1 mile below Pilot Knob 

wasteway, used to control flow of water down canal. The gates may be operated to allow 

Pilot Knob wasteway water either to pass down canal or to be returned to Colorado River.

Cooperation.- Records furnished by Imperial Irrigation District. Eight discharge measurements made and records reviewed by Geological Survey.

Monthly discharge, in econd-feet, water year October 1948

September 1949

Month

December. ................

Calendar year 1948.....

July.....................

Water year 1948-49 .....

Maximum

1,230

4,020

4,040

Minimum

735

0

0

Mean

502

934'

1,823

1,856

Runoff In 

acre-feet

57,420

1,324,000

1,344,000
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 51

Return surface flows from Yuma project, Arlz.-Calif.

Yuma project of the Bureau of Reclamation lies on both sides of Colorado River in the 

vicinity of Yuma. The project has two parts, the Reservation Division in California and 

the Valley Division in Arizona.

Water is diverted from the Colorado Ftiver at Imperial Dam by the All-American Canal 

which supplies the distribution canals for the entire project. See records of Yuma Main 

Canal at siphon-drop power plant and below Colorado River siphon. The California drainage canal and Aras drain return surface flows from the Reservation Division and the Cooper, 

Eleven-Mile, and Twenty-one Mile wasteways, Main drain, and East Main Canal return surface 

flows from the Valley Division.

Records furnished by Bureau of Reclamation. None of these return flows are included 

in the record of the Colorado River at Yuma. For record of return flows from the North 

Gila Valley District see record of North Gila Valley Canal at Laguna Dam. Records of 

monthly discharge prior to October 1938 are published in Water-Supply Paper 1049.

California drainage canal

Location.- Water-stage recorder just upstream from crossing of LI. S. Highway 80. 

Drainage canal enters Yuma Main Canal wasteway 500 feet above mouth, in SE^-SW-j 

sec. 26, T. 16 S., R. 22 E. San Bernardino meridian,

Records available.- Monthly discharge January 1913 to April 1920, October 19S1 to 

March 1925, January 1934 to September 1949.

Remarks.- Record shows waste and drainage water from area east of Yuma Main Canal 

onTTeservation Division. Flow is not included in the record cf Yuma Main Canal 

wasteway.

Araz drain

Location.- Enters the Colorado River in NE^-NW^ sec". 30, T. 16 S., R. 22 E. San

Bernardino meridian, 4 miles downstream from outlet of Yuma Main Canal wasteway.

Records available.- Monthly discharge March 1948 to September 1949.

Remarks.- Record shows waste and drainage water west of Yuma fain Canal on the 

Reservation Division. Due tc fairly constant drainage flow record is obtained 

by interpolation between discharge measurements, nf which 33 were obtained during 

year.

Cooper wasteway

Location.- Enters Colorado River in NW-j sec. 33, T. 8 S. , R. 24 W. , half a mile 

downstream from Morelos Dam.

Records available.- Monthly discharge January 1934 to September 1949.

Remarks.- No gage. Record based on ditch rider's estimates and apportioned water 

in Cooper lateral. Shows waste water from Valley Division returned to Colorado 

River.

Eleven-mile wasteway

Location,- Water-stage recorder and regulating gate in SW-J sec. 8, T. 9 S., R. 24 

W . , 3-5- miles downstream from Morelos Dam.

Records available.- January 1924 to September 1949.

Remarks.- Discharge computed from gate openings and head, checked occasionally by 

current-meter measurements. Record shows waste water from Valley Division 

returned to Colorado River.

Twenty-one mile wasteway

Location.- Recording gage and weir, in NW^- sec. 35, T.-10 S. , R. 25 W. , 13 miles by 

air line downstream from Morelos Dam.

Records available.- October 1938 to September 1949.

Remarks.- Record shows waste water from Valley Division returned to Colorado River.

Main drain

Location?.- Pumping plant in SE-jNE-J- sec. 11, T. 11 S., R. 25 rf. , half a mile west of 

San Luis. Water-stage recorder at outlet and staff gage at inlet.

Records available.- Monthly discharge January 1919 to September 1949.

Remarks.- Record computed from rated puflips checked by occasional discharge measurements. Flow consists mostly of drainage water from the Valley Division which is 

pumped across the Arizona-Sonora boundary for use in Mexico.

^ast Main Canaj.

Location.- Water-stage recorder and weii , in NW-jSW-j sec. IS, T. 11 S. , R. 25 W. , a 

quarter of a mile east of Main Drain pumping plant and a quarter of a mile west 

of San Luis.

Records available.- Monthly discharge January 1924 to June 1928. January 1932 to 

September 1949.
52 DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM

Return surface flows from Yuma project, Aric.-Calif.--Continued

Remarks.- Record shows amount of unused water at the extreme end of the Valley 

Division which is discharged across the Arizona-Sonora boundary for use in 

Mexico.

Monthly return flows, in acre-feet, water year October 1948 to September 1949

Month

March.. .......................

June ..........................

September .....................

Water year 1948-49. .........

California 

drainage 

canal

5,110

4 000

4,500

56', 690

Araz

drain

399

341

3°9

559

4,520

Cooper 

wasteway

204

132

253

237

2,420

Elevenmile 

wasteway

3,800

929

73,120

Twentvone mile 

wasteway

611

13,980

Main 

drain

98O

6,040

102,200

East 

Main 

drain

678

16,190
TRIBUTARIES ABOVF GUNNISON RIVER 53

North Inlet at Grand Lake, Colo.

Location.- Water-stage recorder, lat. 40°15', long. 105°49', in NE^ sec. 5, T. 3 N., R. 

75 W., 1,600 feet upstream from Grand Lake and 300 feet downstream from Tonahutu 

Creek. Datum of gage is 8,434.48 feet above mean sea level (Bureau of Reclamation 

bench mark).

Drainage area.- 46.6 square miles.

Records available.- August 1905 to August 1912 (fragmentary), October 1947 to September 1949. 

Extremes.- Maximum discharge during year, 960 second-feet June 18 (gage height, 6.18 

reet), from rating curve extended above 650 second-feet; minimum daily, 1.5 s^condfeet Feb. 5, 6.

1905-9, 1910-12, 1947-49: Maximum discharge, that of June 18, 1949; minimum daily, 

that of Feb. 5, 6, 1949.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversions above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.8 

8.0

7.6 

7.4 

8.0

8.8 

8.2 

8.5 

10 

9.5

9.0 

8.2 

7.8 

7.6 

»7.6

8.0 

6.6 

7.6 

8.2 

7.8

7.0 

6.8 

7.0 

6.8 

6.6

6.8 

6.2

6.8 

6.6 

7.0 

6.8

Nov.

7.4 

7.8 

8.2 

7.4 

6.6

6.0 

5.2 

5.4 

5.4 

*5.4

5.4

5.6 

5.6 

5.6 

5.4

5.4 

5.4

5.6 

5.8 

5.6

5.6 

5.6 

5.6 

5.6 

5.6

5.4 

5.4 

5.4 

5.4 

5.2

Dec.

5.2 

5.2 

5.0 

5.0 

4.9

4.7 

4.6 

4.4 

*4.4 

4.4

4.4

4.4 

4.4 

4.3 

4.0

4.0 

4.1 

4.1 

4.1 

4.0

3.9 

3.9 

3.8 

3.5 

3.0

3.1 

3.1 

3.1 

3.0 

2.9 

2.9

Jan.

2.9 

2.8 

2.7 

2.6 

2.4

2.3

2.0 

1.9 

1.8 

1.9

1.9 

*1.9 

1.9 

1.9 

2.0

2.0 

2.0 

2.0 

2.0 

1.9

1.8 

1.8 

1.7 

1.7 

1.7

1.7 

1.6 

1.6 

1.6 

1.7 

1.7

Feb.

1.7 

1.7 

1.6 

1.6 

1.5

1.5 

1.6 

1.6 

1.6 

1.6

1.6 

*1.7 

1.7 

1.7 

1.7

1.8 

1.8 

1.9 

1.9 

1.9

2.0 

2.2 

2.3

2.5 

2.7

2.9 

3.0 

3.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

3.2 

3.5

3.7 

3.9 

4.0

4.0 

4.0 

3.9 

3.9 

3.9

3.9 

4.0 

4.3 

4.8 

5.4

5.6 

*5.6 

5.6 

5.7 

5.7

5.6 

5.6 

5.6 

5.7 

5.8

6.0 

5.8 

6.0 

6.2 

6.2 

6.2

Apr.

6.4 

6.4 

6.2 

6.4 

6.2

6.6 

6.8 

7.2 

7.8 

8.4

9.0 

9.4 

9.8 

10 

10

11 

12 

12 

*13 

16

21 

31 

34 

43 

52

63 

73 

90 

116 

102

Secondfoot-days

238.6 

175.0 

125.8

18,576.7

61.4 

54.3 

153.3 

805.6 

4,774 

12,386 

6,145 

1,391 

499

26,809.0

May

67 

56 

87 

130 

115

78 

63 

58 

57 

90

127 

166 

183 

159

240

266 

174 

137 

123 

126

106 

94 

85 

90 

130

213 

276 

294 

312 

358 

314

Maximum

10 

8.2 

5.2

527

2.9 

3.0 

6.2 

116 

358 

707 

404 

113 

22

707

June

235 

176 

146 

183 

262

347 

284 

264 

288 

371

430 

464 

512 

503 

442

503 

707 

694 

"650 

653

586 

540 

472 

404 

382

384 

435 

388 

351 

330

July

336 

.312 

302 

312 

328

310 

404 

353 

308 

280

231 

208 

197 

185 

169

153 

148 

146 

181 

186

162 

126 

108 

111 

113

102 

88 

80 

77 

67 

62

Minimum

6.2 

5.2 

2.9

2.9

1.6 

1.5 

3.2 

6.2 

56 

146 

62 

20 

12

1.5

Aug.

59 

56 

55 

55 

52

55 

49 

85 

113 

85

72 

63 

55 

49 

45

40 

38 

37 

34 

31

29 

27

26 

26 

26

24 

23 

21 

21 

20 

20

Mean

7.70 

5.83 

4.06

50.8

1.98 

1.94 

4.95 

26.9 

154 

413 

198 

44.9 

16.6

73.4

Sept.

20 

19 

20 

22 

19

17 

16 

16 

16 

17

19 

21 

19 

18 

17

17 

17 

16 

15 

15

15 

14 

13 

14 

12

12 

14 

15 

17 

17

Runoff In 

acre-feet

473 

347 

250

36,850

122 

108 

304 

1,600 

9,470 

24,570 

12,190 

2,760 

990

53,180

Peak discharge (base, 350 sec.-ft.). - May 30 (1:30 a.m.) 425 sec.-ft.; June 6 (1:30 a.m.) 371 sec.- 

ft.; June 13 (11 p.m.) 618 sec.-ft.; June 18 (12:30 a.m.) 960 set.-ft.; June 27 (11:30 p.m.) 496 sec. 

ft.; July 7 (3 a.m.) 523 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 6 to Dec. 31, Apr. 6-21. Ho gage-height record Jan. 1 to Mar. 16 (stage-discharge relation affected by Ice during most of period)? discharge 

computed on basis of 2 discharge measurements, weather records, and records for stations on nearby 

streams.
54 TRIBUTARIES ABOVE GUNMISOH 'RIVER 

East Inlet near Grand Lake, Colo.

Location.- Water-stage recorder, lat. 40°14', long. 105°48', in NW£ sec. 9, T. 3 M., R. 75 

W., 1,200 feet upstream from mouth and 1 mile southeast of Grand Lake.

Drainage area.- 27.1 square miles.

Records available.- October 1947 to September 1949.

Extremes.- Maximum discharge during year, 710 second-feet June 17 (gage height, 3.90 feet); 

minimum daily determined, 1.5 second-feet Mar. 11 to Apr. 1. 

1947-49: Maximum and minimum discharges, those of 1949.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

B 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

7.8 

6.8 

6.0 

5.5 

5.2

5.5 

6.4 

6.0 

6.4 

7.3

6.4 

6.0 

5.5 

5.2 

*5.2

5.5 

4.9 

4.6 

5.2 

4.9

4.0 

4.0 

4.0 

3.7 

3.4

3.6 

3.7 

3.7 

3.6 

3.6 

3.6

Nov.

( )

> 3.8

Dec.

(*)

 3.0

Jan.

( )

2.7

Feb.

( )

' 2.2

Month

Ooto 

Nove 

Dece

Ca

Janui 

Pebn 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 200 see. -ft.).- May

June 14 (10 a.m.) 504 sec. -ft.; June 17 (9 p 

7 (4 a.m.) 401 sec. -ft. 

* Winter discharge measurement made on thl

Mar.

1.7 

1.7 

1.7 

1.7 

1.7

1.6 

1.6 

1.6 

1.6 

1.6

1.5 

1.5 

1.5 

1.5 

1.5

1.5 

*bl.5 

bl.5 

bl.5 

bl.5

bl.5 

bl.5 

bl.5 

bl.5 

1.5

1.5 

1.5 

1.5 

1.5 

1.5 

1.5

Apr.

1.5

1.7 

1.7 

1.7 

1.7

2.1 

3.1 

3.7 

4.3 

4.3

4.6 

4.9 

6.4 

6.4 

6.4

6.4 

7.3 

b9.0 

*b!3 

b!2

12 

10 

b!3 

b20 

33

42 

44 

50 

62 

60

Secondfoot-days

157.2 

114.0 

93.0

12,889.5

83.7 

61.6 

48.0 

448.2 

2,979 

8,950 

4,344 

897 

302.3

18,478.0

30 (3 a.m.) 

.m.) 710 sec

a day.

May

44 

40 

58 

74 

74

61 

49 

*41 

40 

52

72 

99 

118 

102 

134

150 

99 

75 

69 

76

65 

55 

49 

49 

76

125 

168 

188 

200 

262 

215

Maximum

7.8

372

1.7 

62 

262 

588 

302 

47 

17

588

June

152 

110 

92 

120 

181

230 

188 

175 

200 

279

305 

369 

394 

385 

326

398 

588 

486 

414 

444

414 

404 

350 

274 

260

302 

305 

308 

251 

246

July

243 

225 

225 

230 

218

220 

302 

230 

212 

198

152 

143 

135 

132 

120

113 

110 

111 

118 

120

107 

90 

81 

76 

68

74 

67 

62 

60 

54 

48

Aug.

46 

44 

46 

47 

43

43 

41 

41 

47 

47

44 

41 

36 

32 

28

25 

23 

23 

21 

19

18 

16 

16 

16 

16

14 

14 

14 

12 

12 

12

Sept.

12 

12 

12

17 

14

14 

12 

12 

11 

11

14 

14 

14 

14 

13

12 

10 

9.6 

8.2 

7.3

6.8 

6.4 

5.5 

6.0 

5.2

5.2 

5.5 

5.2

5.2 

8.2

Minimum Mean *£%£

3.4 5.07 312 

3.8 226 

3.0 184

35.2 25,560

2.7 166 

2.2 122 

1.5 1.55 95 

1.5 14.9 889 

40 96.1 5,910 

92 298 17,750 

48 140 8,620 

12 28.9 1,780 

5.2 10.1 600

50.6 36,650

302 sec. -ft.; June 6 (2 a.m.} 246 s ec. -ft.; 

.-ft.; June 28 (3 a.m.) 38? sec. -ft.; July

b Stage-discharge relation affected by Ice. 

Note.- No gage-height record Oct. 26 to Mar. 16 (stage-discharge relation affected by ice during 

>st of period); discharge computed on basis of 4 discharge measurements, weather records, and reoords 'dH for for stations st-.nfclnna on nn nearby np«T*hv streams. Rh^pamR.
TRIBUTARIES ABOVE GUNNISON RIVER 55

Arapaho Creek at Monarch Lake Outlet, Colo.

Location.- Water-stage recorder, lat. 4Q°07', long. 105°45', in northeast corner of sec. 

ati, T. 2 N. , R. 75 W., a quarter of a mile downstream from Monarch Lake Outlet and 

10 miles east of Granby.

Drainage area.- 47.1 square miles.

Records available.- October 1944 to September 1949.

Extremes.- Maximum discharge during year, 1,040 second-feet June 18 (gage height, 4.19 

 feet); minimum daily, 5.1 second-feet Mar. 13, 17-20, 22, 27, 29.

1944-49: Maximum discharge, that of June 18, 1949; minimum daily, 4.1 second-feet 

Dec. 4-6, 11, 1944.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Flow partly regulated by Monarch Lake. Staff gage at winter station read twice daily 

Nov. 12 to Apr. 9.

Rating tables, water year 1948-49 (gage height, In feet,

and discharge, in second-feet)

(Shifting-control method used Oct. 20 to Nov. 11, 

Apr. 28 to May 15, July 16 to Sept. 30)

Oct. 1 to Nov. 11, Apr. 10 to Sept. 30 Nov. 12 to Apr. 9

1.3 7.5 1.8 56 3.4 535 0.3 4.8 

1.4 12 Z.I 109 3.9 840 .4 5.9 

1.-5 18 2.5 190 4.1 980 .6 9.0 

1.6 28 2.7 244 .7 12.5 

1.7 41 3.1 385

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

11 

11 

11 

11

11 

12 

12 

12 

12

13 

13 

13 

12 

12

12

13 

12 

12 

12

12 

12 

12 

12 

12

11 

11 

11 

11 

11 

11

Nov.

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11

10 

10 

10

11

10 

10 

10 

10

11 

11 11 11 11

11

12 

12 

11 

12

Dec.

11 

10 

11 

10 

9.7

9.4

10 

10 

1011 

11

10 

10 

10 

10

10 

10

11

10 

9.7

10 

10 

10 

10 

10

10 

10 

10 

11 

11 

10

Jan.

9.7 

9.7 

9.4 

9.0 

8.7

8.5 

8.4 

8.2 

8.0 

8.2

8.5 

8.2 

8.4 

8.4 

8.4

7.9 

8.0 

8.0 

8.2 

8.0

7.9 

8.0 

7.7 

7.6 

7.9

8.0 

8.0 

7.9 

8.2 

7.4 

7.6

Feb.

7.4 

7.7 

7.9 

7.4 

7.6

7.1 

6.8 

6.6 

6.8 

6.4

5.9

6.2 

6.0 

6.4 

6.6

6.5 

6.4 

5.9

6.0 

6.0

5.9 

6.4 

6.2 

6.0 

5.9

5.8 

5.4 

5.4

Month

Oo to 

Nove 

Dece

Ca

Janu 

Febr 

Merc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

5.5 

5.2 

5.2 

5.4 

5.4

5.4 

5.2 

5.4 

5.5 

5.4

5.5 

5.4 

5.1 

5.2 

5.2

5.2 

5.1

5.1 

5 .1 

5.1

5.2 

5.1 

5.2 

5.2 

5.5

5.2

5.1 

5.2 

5.1 

5.2 

5.2

Apr.

5.4 

5.6 

6.0 

6.2 

6.6

7.1 

7.4 

7.6 

7.7 

a8.0

a8.2 

a8.6 

a8.8 

a9.4 

alO

a!2 

a!5 

a!7 

a21 

a32

46 

50 

56 

77 

113

148 

148 

223 

209 

172

Secondfoot-days

363 

326 

315.8

23,109.5

256.0 

180.6 

162.8 

1,451.6 

5,740 

15,327 

7,289 

1,795 

668

33,874.8

Peak discharge (base, 630 sec. -ft.).- June 13 (3 a.m.)

May

140 

109 

115 

142 

146

124 

71 

56 

59 

71

122 

212 

226 

192 

244

289 

232 

192 

172 

168

158 

146 

98 

84 

124

269 

345 

334 

357 

345 

398

Maximum

13 

12 

11

536

9.7 

7.9 

5.5 

223 

398 

931 

496 

104 

31

931

June

296 

226 

158 

188 

349

465 

381 

338 

377 

496

480 

608 

740 

656 

557

638 

931 

812 

686 

798

746 

722 

608 

475 

426

465 

480 

470 

394 

361

July

342 

345 

342 

398 

480

455 

496 

440 

377 

345

269 

244 

229 

217 

190

195 

175 

177 

175 

179

172 

144 

130 

126 

124

118 

115 

73 

56 

77 

84

Aug.

77 

75 

75 

77 

73

71 

73 

71 

77 

104

102 

91 

78 

71 

64

59 

54

50 

47 

46

42 

36 

31 

32 

32

31 

32 

32

33 

31 

28

Sept.

27 

29 

27 

31 

29

29 

28 

28 

27 

27

26 

26 

25 

25 

25

23 

23 

22 

21 

19

18 

17 

17 

16 

15

15 

14 

13 

13

13

Minimum Mean ~ee?

10 11.7 720 

10 10.9 647 

9.4 10.2 626

7.2 63.1 45,830

7.4 8.26 508 

5.4 6.45 358 

5.1 5.25 323 

5.4 48.4 2,880 

56 185 11,390 

158 511 30,400 

56 235 14,460 

28 57.9 3,560 

13 22.3 1,320

5.1 92.8 67,190

854 sec. -ft.; June 18 (l a.m.) 1,040 aec.-f

a N(j gage-height record; discharge computed on basis of 1 discharge measurement, weather records, 

and records for stations on nearby streams.

939921 O - 51 - 5
56 TRIBUTARIES ABOVE GUNNISON RIVER

Willow Creek near Granby, Colo.

Location.- Water-stage recorder, lat. 40°11', long. 106°00', in Nw£ sec. 34, T. 3 N., R. 

 '/'/ W., at bridge on State Highway 125, 100 feet downstream from Gold Run Creek and

7 miles northwest of Granby. Datum of gage is 8,236.88 feet above mean sea level,

unadjusted. Prior to Oct. 1, 1948, at datum 0.95 foot higher.

Drainage area.- 105 square miles.

Records available.- April 1935 to September 1949.

Average discharge.- 14 years, 63.4 second-feet.

Extremes.- Maximum discharge during year, 622 second-feet May 31 (gage height, 4.84 feet); 

minimum daily, 8.4 second-feet Dec. 23, 24.

1935-49: Maximum discharge, 811 second-feet May 16, 1938 (gage height, 5.44 feet, 

present datum), from rating curve extended above 530 second-feet; minimum daily, 6 second-feet Feb. 17-24, 1938, Dec. 15, 16, 27, 1941.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Water diverted above station for irrigation of hay meadows.

Rating table, water year 1948-49, except periods of Ice effect

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used Oct. 11 to Nov. 1)

1.2 9.5 1.7 29 2.8 122 

1.3 12 1.9 42 3.2 194 

1.4 15 2.3 73 3.7 306 

1.5 19 2.7 110 4.8 610

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

15 

13 

12 

12 

14

15 

14 

14 

15 

14

13 

13 

12 

 12 

12

13 

12 

12 

12 

12

12 

11 

11 

11 

11

11 

11 

12 

12 

11 

11

Nov.

12 

12 

13 

13 

13

14

14 

13 

12 

13

13 

»13 

13 

12 

12

12 

12 

12 

13 

12

12 

12 

12 

12 

11

11 

11 

10 

10 

11

Dec.

1O 

11 

11 

11 

10

10 

10 

11 

11 

 9.4

9.0 

9.0 

9.0 

9.2 

9.4

9.4 

9.4 

9.4 

9.4 

9.4

9.0 

8.8 

8.4 

8.4 

8.6

9.0 

9.6 

9.6 

9.6 

9.6 

10

Jan.

10 

10 

10 

9.6 

9.0

9.0 

9.0 

9.6 

9.6 

9.0

9.6 

9.6 

 9.6 

9.6 

9.0

9.0 

8.6 

9.0 

9.6 

9.8

9.6 

9.6 

9.6 

9.6 

9.0

9.6 

9.6 

9.6 

9.0 

9.0 

12

Feb.

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

11 

11 

11 

11

11 

 11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11

Month

Octo 

Hove

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

Nay

June 

July 

Augu 

Sept

We

lendar year 1948 

ary

h. ......................................

1. ......................................

ter year 1948-49 .......................

Mar.

12 

12 

11 

10 

10

11 

12 

12 

12 

12

12 

12 

12 

13 

13

13 

14 

16 

 16

15

15 

14 

13 

11 

12

12 

12 

12 

12 

12 

12

Apr.

11 

11 

11 

12 

12

12 

15 

15 

15 

16

18 

22 

24 

24 

24

26 

32 

41 

49 

49

55 

65 

79 

108 

152

180 

182 

194 

236 

223

Secondfoot-days

385 

365 

297.6

21,568.6

294.4 

319 

387 

1,913 

11,630 

10,573 

2,727 

719 

442

30,052.0

May

184 

152 

214 

249 

260

236 

218 

202 

196 

247

304 

356 

432 

438 

502

565 

522 

460 

424 

421

382 

330 

318 

348 

399

486 

536 

542 

556 

562 

589

Maximum

15 

14 

11

614

12 

12 

16 

236 

589 

547 

170 

45 

22

589

June

547 

486 

385 

351 

313

320 

338 

340 

333 

369

382 

430 

452 

444

404

407 

430 

435 

399 

377

353 

330 

311 

287 

258

243 

251 

218 

198 

182

July

170 

161 

149 

147 

138

136 

143 

128 

114 

109

101 

95 

89 

82 

77

73 

67 

63 

68 

68

62 

54 

52 

61 

63

52 

48 

44 

40 

38 

35

Aug.

34 

32 

32 

31 

29

28 

33 

45 

33 

28

27 

25 

24 

22 

22

22 

22 

20 

19 

17

17 

17 

18 

17 

16

16

15 

15 

14 

15 

14

Sept.

14 

15 

15 

20 

16

14 

14 

14 

14

15

19 

22 

16 

17 

15

14 

14 

14 

14 

14

13 

13 

13 

13 

13

13 

13 

13 

13 

15

« * »» ac^eS

11 12.4 764 

10 12.2 724 

8.4 9.60 590

8.4 58.9 42,780

8.6 9.50 584 

11 11.4 633 

10 12.5 768 

11 63.8 3,790 

152 375 23,070 

182 352 20,970 

35 88.0 5,410 

14 23.2 1,430 

13 14.7 877

8.4 82.3 59,610

Peak discharge (base, 300 sec. -ft.).- May 16 (6 p.m.) 607 sec. -ft.; May 31 (3 a.m.) 622 sec. -ft.:

 Winter discharge measurement made on this day.

Mote.- No gage-height record Nov. 2-12, Nov. 29 to Dec. 9, Dec. 27 to Jan. 12, Peb 5-16 (stagedischarge relation affected by lee during most of periods); discharge computed on basis of 1 discharge measurement, weather records, and records for stations on nearby streams. Stage-discharge 

relation affecttd by ice Nov. 13-28, Dec. 10-26, Jan. 13 to Peb. 4, Peb. 17 to Mar. 18.
TRIBUTARIES ABOVE GUNNISON RIVER 57

Praser River near Winter Park, Colo.

Location.- Water-stage recorder, lat., 39°54'00", long. 105°46'35", in NE£ sec. 4, T. 2.S., 

RT~75~~W., 100 feet downstream from bridge on U. S. Highway 40, lj miles northwest of 

Winter Park, and 2? miles downstream from.point of diversion for Moffat water tunnel.

Drainage area.- 27.6 square miles.

Records available.- September 1910 to September '1930 and September 1933 to September 1949 

in reports or ueological Survey. September 1910 to September 1949 in reports of State 

engineer. Records since June 9, 1936, equivalent to earlier records if diversion 

through Moffat water tunnel is added to flow past station.

Average discharge.- 39 years, 42.1 second-feet (including diversion to Moffat water tunnel),

Extremes.- Maximum discharge during year, 359 second-feet June 17 (gage height, 2.18 feet); 

minimum daily, 3.5 second-feet Sept. 27-29.

1910-49: Maximum discharge, 820 second-feet June 13, 1918 (gage height, 2.9 feet); 

minimum, 2 second-feet Mar. 30, 1912.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Small transmountain diversion through Berthoud Pass ditch (see p. 26). 

Considerable portion of'flow above station diverted through Moffat water tunnel.

Cooperation.- Records of flow diverted through Moffat water tunnel furnished by State 

engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.O 

4.2 

4.O 

4.0 

4.8

5.0 

5.2 

5.5 

5.5 

5.2

5.0 

5.0 

5.O 

5.2 

5,2

5.5 

*5.8 

5.8 

5.8 

5.5

5.5 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.5 

28 

12 

12

Nov.

11 

11 

11 

12 

b!2

12 

11 

*b!2 

blO

blO

10 

10

10 

11 

11

9.8 

9.8 

b9.8 

b9.8 

b9.8

b9.8 

9.8 

9.0 

9.0 

b9.0

b9.0 

b9,O 

b9.0 

b9.0 

b9.2

Dec.

b9.6 

b9.8 

blO 

b9.8 

9.8

9.E 

*9.8 

9.4 

9.O 

8.5

8.2 

9.0 

8.5 

8.2 

7.9

8.2 

8.2 

7.9 

8.2 

7.9

8.2 

7.9 

7.9 

b7.8 

b7.4

b7.6 

b7.8 

b7.6 

b7.6 

b7.6 

b8.0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

ber. ...............

mber. ..............

lendar year 1948 . .

h.. ................

St..... ............

ter year 1948-49 . .

Jan.

8.2 

7.6 

7.4 

6.8 

6.8

7.0 

7.2 

7.2 

7.2 *7.6

7.4 

7.2 

7.2 

7.2 

7.2

7.4 

7.2 

7.2 

7.2 

7.4

7.4 

7.4 

7.4 

b7.4 

b7.4

b7.4 

b7.0 

b7.4 

b7.O 

b7.O 

b7.0

Secondfoot days

195.4 

3O4.8 

263.1

7,441.8

225.4 

214.6 

222.0 

390.6 

710 

4,591 

3,588.6 

186.9 

116.6

11,009.0

Feb.

b7.2 

b7.2 

b7.4 

b7.4 

b7.6

b7.8 

b8.0 

8.0 

*8.2 

8.4

8.4 

8.4 

8.4 

8.4 

8.2

8.2 

8.0 

7.8 

7.4 

7.4

7.2 

7.0 

7.2 

7.2 *7.2

b7.0 

b7.0 

b7.0

0'

Discharge

Maximum

28 

12 

10

262

8.2 

8.4 

7.6 

28 

36 

287 

224 

9.4 

4.8

287

Mar.

b7.O 

b7.O

b7.2 

b7.2 

b7.0

b7.0 

b7.0 

b7.0 

b7.2 

b7.2

b7.2 

b7.2 

b7.2 

*7.3 

7.0

7.0 

7.0. 

7.3 

7.3 

7.3

7.0 

7.3 

7.3 

7.0 

7.6

7.3 

7.0 

7.3 

7.3 

7.0 

7.3

served

in secc

Minimum

4.0 

9.O

7.4

3.4

6.8 

7.0 

7.0 

7.0 

18 

23 

7.6 

4.0 

3.5

3.5

Apr.

7.3 

7.3 

7.0 

7.6 

7.6

8.5 

9.4 

9.0 

8.2 

8.2

7.9 

8.2 

9.0 

8.2 

8.2

9.0 

11 

13 

16 

15

12 

13 

16 

21 

20

21 

26 

28 

26 

22

May

18 

19 

22 

25 

22

19 

18 

18 

18 

18

22 

31 

27 

25 

27

28 

27 

25 

25 

23

21 

21 

20 

2O 

20

20 

21 

21 

22 

31 

36

nd-feet Run

Mean acr

off in 

e-feet

6.3O 388 

1O.2 605 

8.49 522

20.3 14,760

7.27 447 

7.66 426 

7.16 440 

13.0 775 

22.9 1,410 

153 9,11O 

116 7,120 

6.O3 371 

3.89 231

30.2 21,840

June

31 

25 

23 

43 

41

45 

39

43 

48 

84

124 

138 

179 

221 

251

260 

287 

272 

269 

242

239 

215 

212 

233 

212

182 

179 

158 

152 

144

Divers ionE 

to Moffat 

water 

tunnel 

(acre-feet

6O3

0 

0

12,810

O 

0 

O 

268 

2,510 

2,830 

968 

1,990 

781

9,950

July

161 

188 

2OO 

224 

224

152 

209 

2O3 

176 

158

144 

130 

122 

117 

112

107 

1O2 

110 

130 

120

100 

74 

70 

67 

65

62 

30 

8.2 

7.9 

7.9 

7.6

Aug.

7.9 

8.2 

9.4 

9.0 

7.9

7.9 

7.6 

7.3 

7.9 

8.2

7.3 

6.4 

6.1 

5.5 

5.5

5.5 

5.8 

5.5 

5.2 

5.0

4.8 

4.5 

4.5 

4.5 

4.5

4.2 

4.2 

4.2 

4.2 

4.2 

4.O

Sept.

4.5 

4.0 

4.8 

4.8 

4.0

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.5 

3.5 

3.5 

4.2

Adjusted for diversion

Runo f f 

in 

acre-feet

991 

6O5 

522

27,580

447 

426 

440 

1,O40 

3,920 

11,940 

8,090 

2,360 

1,O10

31,790

Mean 

(secondfeet)

16.1 

1O.2 

8.49

38.0

7.27 

7.66 

7.16 

17.5 

63.7 

2O1 

132 

38.4 

17.0

43.9

Winter discharge measurement made on this day. 

" ' elation affected by ice

.

b Stage-discharge relation affected by ice.

Note.- Ho gage-height record Jan. 1-23, Feb. 8-25 (stage-discharge relation affected bjr ice during 

st of period); discharge computed on basis of 3 discharge measurements, weather records, and 

records cfor nearby stations.
58 TRIBUTARIES ABOVE GUNNISON RIVER

Fraser River at Granby, Colo.

Location - Water-stage recorder, lat. 40°OS', long. 105°57«, in sec. 1, T. 1 N., R. 76^ W., 

just downstream from Tenmile Creek, half a mile southwest of Granby, and 2^ miles upstream from mouth.

Drainage area.- 285 square miles.

Records available.- September 1937 to September 1949. August 1904 to September 1909 at 

site Just below Tenmile Creek. Records since September 1937 equivalent to earlier 

records if diversion through Moffat water tunnel is added to flow past station.

Average discharge.- 17 years, 202 second-feet (including diversion to Moffat water tunnel).

Extremes.- Maximum discharge during year. 1,530 second-feet June 18; maximum gage height, 

3T25~Teet June 20; minimum daily, 29 second-feet Sept. 22-, 25,.26.

1904-9, 1938-49: Maximum daily discharge, l;860 second-feet June 14, 15, 1906; minimum daily, 14 second-feet Sept. 22, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Transmountain diversions (see p. 26) and diversions for irrigation 

above station.

Cooperation.- Records of flow diverted through Moffat water tunnel furnished by State 

engineer.

Rating tables, water year 1948-49, except period of Ice effect

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Mar. 24 to Apr. 23, June }9-22)

Oct. 1 to Mar. 23

0.4 

.5 

.6

0.5 

.6

Mar. 24 to Sept. 30

0.9 

1.2

132

240

490

2.2

2.7 

3.2

7OO 

1,050 

1,490

Discharge, in second-feet, water year October 1948 to September 1949

Daw Oct. Apr. May July Aug. Sept.

123

177

217

248

240

264

324

404

404

414

450

468

476

432

332

312

409

445

458

364

336

324

308

352

384

515

520

490

560

625

565

505

454

432

392

372

352

352

380

432

481

486

520

555

545

454 

388 

352 

4OO 

520

530

500

486

620

635

640

748

928

1,210

1,190

1,240

,380

,420

,360

,260

,270

,260

,230

,110

935

886

935

830

736

676

610

555

550

664

730

712

837

730

620

555

510

458

409

372

348

324

304

288

300

280

284

236

213

217

229

206

177

135

120

108

96

91

111

123

102

94

94

85

126

156

120

108

94

85

82

Second- jDlscharge ir

foot-days Maxim

id-feet Runoff In 

Mean I acre-feet

Diversion

to Moffat

water

tunnel

acre-feet))

Adjusted for diversion

Runoff

in 

icre-feet

Mean

(secondfeet)

October.. 

November. 

December.

1,224

1,608

1,363

39.5

53.6

44.0

2,430

3,190

2,700

1,110 3,540

3,190

2,700

57.6

53.6

44.0

Calendar year 1948 54,509 108,100 22,980 131,100 181

January... 

February.. 

March 

April. 

May.......

June. ...'..

July.

August

September.

1,357

1,236

1,750

5,743

13,557

26,129

12,177

2,498

1,244

48

76

476

625

1,420

837

156

72

308

353

47^

43.8

44.1

56.6

191

437

871

393

80.6

41.5

2,690

2,450

3,470

11,390

26,890

51,830

24,150

4,950

2,470

0

0

114

5,600

6,150

6,470

3,410

1,810

2,690

2,450

3,470

11,500

32,490

57,380

30,620

8,360

4,280

43.8 

44.1 

56.5

193

528 9-74

49 a

136 

71.9

Water year 1948-49 1,420 191 138,600 24,660 163,300 226

* -Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 6, Nov. 9 to Mar. 23 (no gage-height record 

Be~2T to Mar. 19; discharge computed on basis of 2 discharge measurements, vjeather records, and 

records for nearby stations).
TRIBUTARIES ABOVE GUMISON RIVER 59

Vasquez Creek near Winter Park, Colo.

Location.- Water-stage recorder, lat. 39°55'15", long. 105°47'05", in NW^- sec. 33, T. 1

S ., K . 75 W., 75 feet downstream from bridge on U. S. Highway 40, a quarter of a mile

upstream from mouth, lj miles downstream from Moffat water tunnel diversion, and Z\

miles northwest of Winter Park. Datum of gage is 8,768.48 feet above mean sea level,

unadjusted.

Drainage area.- 27.8 square miles. 

Hecords available.- June 1907 to October 1909, August 1934 to September 1949. Records

since May 2b, 1937, equivalent to earlier records if diversion through Moffat water

tunnel is added to flow past station. 

Average discharge.- 15 years (1934-49), 33.4 second-feet (including diversion to Moffat

water tunnel}. 

Extremes.- Maximum discharge during year, 250 second-feet June 17 (gage height, 2.51 feet);

minimum daily, 0.5 second-foot July 17.

1934-49: Maximum discharge, 396 second-feet June 15, 1935 (gage height, 2.64 feetj) ;

no flow Sept. 9-24, 1944, July 17, 18, 1946. 

Remarks.- Records good except those for periods of ice effect or no gage-height record,

which are fair. Transmountain diversion above station through Moffat water tunnel was

13,510 acre-feet during water year 1948-49.

Rating table, water year 1948-49, except periods of Ice effect

-(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used Oct. 1-6, Mar. 14 to Apr. 10,

June 30 to July 17, July 23 to Aug. 26)

0.5 0.4 

1.0 

.7 2.4 

.8 4.2 

.9 6.6

178

248

Discharge, in second-feet, water year October 1948 to September 1949

Bay

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.7 

1.6 

1.6 

1.6 

2.0

2.1 

2.8 

2.3 

2.3 

2.3

2.0 

2.0

1.8 

1.8 

2.0

2.0 

1.8 

2.0 

2.0 

2.0

1.7 

1.6 

1.7 

1.7

1.7

1.6 

1.8 

1.8 

1O 

11 

13

Nov.

13 

12 

12 

13 

15

12 

11 

*b8.0 

b8.5 

b9.0

b9.5 

9.7 

9.3 

9.3 

10

10 

9.0 

8.6 

b8.3 

bS.O

b8.6 

9.0 

9.3 

9.0

8.6

9.0 

8.6 

8.3 

9.0 

8.6

Dec.

9.3 

10 

10 

11 

10

11 

*9.7 

10 

10 

1O

10 

9.3 

9.0 

9.0 

9.0

9.0 

9.3

8.6 

8.6 

7.6

8.3

8.3 

8.0 

b7.6 

b7.2

b7.4 

b7.4 

b7.2 

b7.2 

b7.4 

b7.4

Jan.

b7.2 

b7.0 

b6.6 

b6.6 

b6.6

b6.6 

6.6 

6.8 

6.8 

*7.0

7.0 

7.0 

7.0 

7.0 

6.8

6.8 

6.6 

6.6 

6.6 

6.6

6.6 

6.8 

6.8 

6.8 

6.6

6.4 

6.4 

6.4 

6.2 

6.2 

6.2

Feb.

6.2 

6.2 

6.2 

6.2 

6.2

6.4 

6.4 

6.4 

*6.6 

6.6

6.6 

6.6 

6.4 

6.2 

6.0

6.0 

5.8 

5.6 

5.4 

5.4

5.2 

5.2 

5.2 

5.0 

5.0

5.0 

5.2 

5.2

Month

00 to 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 194£

ter year 1948-49 .......................

Mar.

5.2 

5.0 

5.0 

5.0 

5.0

4.8 

4.8 

4.8 

4.8 

4.8

4.6 

4.6 

4.4 

*4.4 

4.2

4.2 

4.2 

b4.0 

b4.4 

b4.4

4.4 

b4.9 

4.9 

5.2 

b4.7

b4.7 

5.2 

4.9 

b4.9 

b4.7 

b4.7

Apr.

b4.9 

b4.9 

4.9 

b4.9 

b4.9

6.1 

6.6 

6.4 

5.9 

5.6

b6. 6 

bS.O 

8.3 

6.6 

9.0

10 

8.6 

*9.3 

10 

9.3

9.3 

10 

13 

18 

20

22 

22 

25 

25 

29

Secondfoot-days

87.3 

293.2 

273.8

6,761.3

207.2 

164.4 

145.8 

334.1 

471.6 

3,073.8 

191.4 

55.8 

55.4

5,353.8

May

22 

18 

30 

36 

37

23 

15 

14 

15 

18

14 

19 

16 

16 

18

18

16 

14 

13 

12

11 

11 

10 

8.6 

8.3

8.3 

7.3 

6.6

4 -. 7 

5.4

Maximum

13 

15 

11

148

7.2 

6.6 

5.2 

29 

37 

226 

92 

2.0 

2.3

226

June

5.4 

4.9 

3.8 

5.4 

5.2

3.8 

2.9 

2.9 

3.8 

2.8

2.8 

3.1 

10 

163 

191

193 

226 

226 

207 

212

212 

202 

193 

174 

154

148 

146 

132 

122 

116

July

92 

15 

6.1 

5.9 

8.6

6.9 

10 

8.3 

3.1 

2.1

2.8 

2.3 

1.3 

.9 

.9

.7 

.5 

.8 

1.1 

1.1

1.7 

2.3 

2.1 

2.1 

2,1

2.0 

1.8 

1.8 

1.7 

1.7 

1.7

Minimum

1.6 

8.0 

7.2

.7

6.2 

5.0 

.0 

.9 

.7 

.8 

.5 

.6 

.7

.5

Aug.

.6 

.7 

.8 

.8 

.7

.6 

.6 

.6 

.0 

.0

.0 

.8

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

2.0 

2.0

Mean

2.82 

9.77 

8.83

18.5

6.68 

5.87 

4.70 

11.1 

15.2 

102 

6.17 

1.80 

1.85

14.7

Sept.

Z. 1 

2.0 

2.1 

2.3 

2.0

2.0 

2.0 

1.8 

1.8 

2.0

2.0 

1.8 

1.8 

1.8 

1.8

.8 

.8

: '.7

.7

.7 

.8 

.7 

.7 

.0

Runoff n 

acre-fe t

173

582 

543

13,410

411 

326 

289 

663 

935 

6,100 

380 

111 

110

10,620

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Mote.- No gage-height record Jan. 7 to Mar. 13 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 2 discharge measurements, weather records, and records for stations on nearby streams.
60 TRIBUTARIES ABOVE GUNNISON RIVER 

St. Louis Creek near Fraser, Colo.

Location.- Water-stage recorder, lat. 39°54'45", long. 105°52 I 35", in sec. 34, T. 1 S.. R. 

Yb w., a third of a mile downstream from confluence of East and West Branches and 4Jmiles southwest of Fraser.

Drainage area.- 32.8 square miles.

Records available.- August 1934 to September 1949.

Average discharge.- 15 years, 37.0 second-feet.

Extremes.- Maximum discharge during year, 268 second-feet June 16 (gage height, 2.31 feet); 

 minimum daily, 7.6 second-feet Jan. 4, 5, 13-20, Jan. 27 to Feb. 1.

1934-49: Maximum discharge, 353 second-feet June 15, 1935 (gage height, 2.58 feet),

from rating curve extended above 220 second-feet; minimum, 3.2 second-feet Apr. 9, 1935

(gage height, 0.75 foot).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wttich are fair. No regulation or diversion.

Rating tables, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Feb. 13 to Mar. 12, 

Mar. 23 to Apr. 23, June 6-15)

Oct. 1 to Jan. 31 Feb. 1 to Sept. 30

1.4 

.5

1.0 16 1.0 18 1.7 100 

1.1 21 1.2 30 2.0 175 

1.3 38 2.3 265

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

18 

16 

16 

15 

16

15 

17 

18 

18 

17

16 

16 

15 

16 

16

15 

18 

19 

15 

14

14 

14 

14 

14 

13

14 

14 

13 

13 

14 

15

Nov.

15 

15 

15 

14 

b!4

b!5 

14 

b!5 

*b!3 

b!2

b!2 

b!2 

b!2 

b!3 

b!3

13 

12 

11 

10 

10

10 

10 

10 

10 

10

10 

10 

10 

10 

10

Dec.

10 

11 

12 

12 

12

11 

11

11 

11

10 

9.6 

9.6 

9.6 

9.6

9.8 

10 

9.6 

9.2 

8.8

8.8 

8.8 

8.8 

8.6 

8.2

8.6 

8.8 

8.6 

8.2 

8.6 

8.8

Jan.

8.8 

8.8 

8.0 

7.6 

7.6

7.8 

8.0 

8.0 

8.0 

8.0

8.0 

.8 

.6 

.6 

.6

.6 

.6 

.-6 

*7.6 

7.6

7.8 

8.0 

8.2 

8.2 

8.2

8.0 

.6 

.6 

.6 

.6 

.6

Feb.

7.6 

7.8 

8.0 

8.0 

8.2

8.4 

8.4 

8.6 

8.8 

9.0

9.4 

9.6 

*9.4 

9.4 

9.1

9.1 

9.1 

8.8 

8.8 

8.8

8.8 

8.8 

8.8 

8.8 

8.8

8.8 

8.8 

8.8

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year!948

1.. .....................................

ter year 1948-49 .......................

Mar.

8.8 

8.5 

8.5 

8.8 

9.1

9.1 

9.4 

9.1 

8.8 

9.4

9.1 

9.1 

b9.0 

b9.0 

*9.4

9.4 

9.1 

9.4 

9.1 

10

9.4 

b9.6 

9.1 

9.7 

blO

b9.6 

9.1 

8.8 

b9.0 

b9.0 

b9.0

Apr.

b8.8 

8.5 

8.5 

b8.6 

b8.8

8.8 

9.4 

9.4 

8.8 

9.1

b9.4 

9.7 

9.4 

*8.5 

b9.2

blO 

9.7 

12 

13 

13

12 

14 

17 

23 

23

25 

26 

28 

29 

26

Secondfoot-days

478 

360 

302.6

12,549.6

243.6 

244.7 

284.7 

415.6 

1,446 

4,850 

3,533 

1,161 

680

13,999.2

May

23 

24 

32

36 

33

28 

26 

25 

27 

32

36 

42 

39 

40 

49

54 

49 

46 

45 

45

42 

40 

40 

43 

51

64 

75 

80 

92 

96 

92

Maximum

19 

15 

12

209

8.8 

9.6 

10 

29 

96 

241 

184 

56 

29

241

June

80 

73 

69 

78 

90

96 

90 

90 

110 

110

132 

170 

187 

190 

187

220 

241 

238 

226 

229

229 

229 

223 

193 

184

184 

190 

178 

172 

162

July

160 

158 

165 

170 

165

178 

184 

170 

158 

150

138 

128 

118 

115 

105

102 

102 

100 

102 

96

88 

82 

80 

82 

78

69 

64 

61 

59 

55 

51

Aug.

51 

49 

56 

51 

47

46 

44 

45 

47

46

45 

41 

40 

38 

36

35 

36 

36 

32 

32

30 

29 

29 

29 

28

28 

28 

27 

26 

27 

27

Minimum Mean

13 15.4 

10 12.0 

8.2 9.76

7.4 34.3

7.6 7.86 

7.6 8.74 

8.5 9.18 

8.5 13.9 

23 46.6 

69 162 

51 114 

26 37.5 

19 22.7

7.6 38.4

Sept.

27 

26 

28 

29 

26

25 

24 

23 

24 

25

26 

25 

24 

23 

22

22 

21 

21 

20 

20

20 

20 

19 

19 

19

19 

20 

19 

20 

24

Runoff In 

acre-feet

948 

714 

600

24,900

483 

485 

565 

824 

2,870 

9,620 

7,010 

2,300 

1,350

27,770

Peak discharge (base. 240 see.-ft.).- June 16 (6 p.m.) 268 sec.-ft.; July 6 (9 p.m.) 247 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Hote.- No gage-height record Nov. is to Feb. 12; discharge computed on basis of 2 discharge 

measurements, weather records, and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 61

Ranch Creek near Fraser, Colo.

Location. - Water-stage recorder, lat. 39°55'15", long. 105°47'05", in NWj sec. 22, T. 1 

S. , R. 75 *[. , 150 yards downstream from South Fork End 3 miles east of Fraser.

Drainage area.- 19.9 square miles.

Records available.- August 1934 to September 1949. Records since May 15, 1949, equivalent 

to earlier records if diversion through Moffat water tunnel is added to flow past 

station.

Average discharge.- 15 years, £1.1 second-feet (including diversion through Moffat water 

tunnel).

Extremes.- Maximum discharge during year, 272 second-feet June 19 (gage height, 3.12 feet); 

minimum daily, 3.4 second-feet Jan. 29, Mar. 17-21.

1934-49: Maximum discharge, 299 second-feet June 15, 1935 (gage height, 3.37 feet); 

minimum daily, 1.5 second-feet (estimated) Feb. 3-7, Mar. 18-21, 1935.

Remarks.- Records good except those for periods of ice effect, which are fair. Transmountain diversion above station through Moffat water tunnel was 1,420 acre-feet during 

water year 1948-49.

Rating tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-10, Oct. 17 to Feb. 9, 

Apr. 2 to May 15, June 4)

Oct. 1 to June 4 June 5 to Sept. 30

0.5 3.0 0.8 9.0 1.2 25 0.7 7 1.5 48 

.6 4.5 .9 12 1.5 44 .8 10 1.9 84 

.7 6.5 1.1 20 1.9 80 1.0 18 2.3 139 

1.2 28 2.9 235

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.0 

6.3 

5.7 

5.7 

6.1

6.3 

6.3 

6.1 

6.8 

6.3

5.7 

6.1 

5.7 

5.3 

5.5

5.7 

7.2 

8.5 

6.3 

5.5

5.7 

6.5 

5.9 

5.9 

6.3

5,1 

5.3 

5.1 

5.1 

6.3 

6.1

Nov.

5.9 

5.5 

5.5 

b5.0 

b5.4

b5.6 

5.1 

5.5 

*5.7 

5.3

5.3 

5.1 

5.1 

4.9 

4.9

4.7 

4.4 

4.0 

3.9 

4.0

4.0 

4.0 

4.0 

4.0 

4.0

4.0 

4.0 

4.0 

4.2 

4.5

Dec.

4.7 

4.7 

4.9 

4.9 

4.7

4.5 

4.4 

*4.4 

4.4 

4.2

4.0 

4.2 

4.0 

3.9 

3.9

3.9 

3.9 

4.0 

4.0 

4.0

4.0 

4.0 

S.9 

3.9 

4.0

4.2 

4.2 

4.2 

4.2 

4.0 

4.2

Jan.

4.4 

4.2 

3.9 

3.9 

3.9

3.9 

4.0 

.0 

.2

.2

* .0 

.0 

.0 

.0 

4.0

4.0 

b3.9 

b3.9 

b3.9 

b3.9

b3.9 

b4.0 

b4.2 

4.4 

4.0

3.9 

3.8 

3.6 

3.4 

3.6 

3.8

Feb.

3.8 

3.9 

4.0 

3.9 

3.9

3.9 

3.9 

3.9 

3-9 

4.0

4.0 

4.0 

4.0 

*3.« 

3.8

3.9 

4.0 

4.0 

4.2 

4.4

4.2 

4.4 

4.5 

4.5 

4.4

4.2 

4.0 

4.0

Month

Goto 

Nove 

Dece

Ca

janxi 

Febr 

Marc 

Apri

MfiV

June 

July 

Augu 

Sept

Wa

lendar year 1948 

fliry

ter year 1948-49 .......................

Mar.

4.0 

3.9 

3.9 

3.9 

3.9

4.0 

3.9 

3.8 

3.9 

3.9

3.8 

3.8 

3.8 

3.8 

4.0

3.6 

3.4 

3.4 

3.4 

2.4

3.4 

3.6 

3.6 

3.6 

3.8

3.6 

3.6 

3.6 

2.6 

3.6 

3.6

Apr.

3.6 

3.6 

3.6 

3.6 

3.6

3.9 

4.2 

4.2 

3.9

3.8

3.9 

4.2 

4.2 

4.0 

4.0

4.2 

5.1 

5.9 

6.5 

6.8

6.5 

7.0 

9.6 

14 

14

16 

19 

24 

24 

22

May

18 

19 

25 

30 

29

24 

21 

20 

22 

25

32 

45 

45 

45 

56

55 

47 

43 

41 

39

36 

35 

33 

35 

38

46 

55 

60 

66 

72 

67

Second- Man-limim foot-days «a*l'°«'»

187.4 8.5 

141.5 5.9 

ISO. 4 4.9

6,804.6 163

122.8 4.4 

113.4 4.5 

115.1 4.0 

242 . 9 24 

1,224 72 

4,369 230 

1,792 106 

545 24 

286.3 13

9,269.8 230

June

60 

54 

51 

80 

99

102 

94 

95 

106 

113

124 

138 

160 

183 

192

207 

230 

230 

230 

230

225 

221 

202 

157 

132

148 

157 

136 

116 

97

July

94 

104 

104 

104 

97

91 

106 

96 

85 

80

75 

67 

60 

54 

50

47 

47 

44 

42

38

33 

32 

30 

29 

29

27 

26 

26 

26 

25 

24

Aug.

24 

22 

24 

22 

20

20 

19 

20 

22 

20

17 

18 

18 

20 

18

18 

19 

20 

17 

17

17 

17 

16 

15 

14

13 

12 

12 

11 

12 

11

Sept.

11 

11 

13 

12 

11

9.1 

9.1 

9.1 

9.1 

9.4

9.4 

9.1 

9.1 

9.1 

9.1

8.5 

8.2 

7.9 

8.2 

7.9

8.2 

9.7 

9.4 

9.4 

9.4

9.7 

9.4 

9.4 

9.4 

12

Mini Mean «£«£

5.1 6.05 372 

3.9 4.72 281 

3.9 4.21 259

3.8 18.6 13,500

3.4 3.96 244 

3.8 4.05 225 

3.4 3.71 228 

3.6 8.10 482 

18 39.5 2,430 

51 146 8,670 

24 57.8 3,550 

11 17.6 1,080 

7.9 9.54 568

3.4 25.4 18,390

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
TRIBUTARIES ABOVE GUNNISON RIVER

Ranch Creek near Tabernash, Colo.

Location.- Water-stage recorder, lat. 39°59'55", long. 105°49'10", in sec. 6, T. IS., R.

75 W., a quarter of a mile upstream from Meadow Creek and lj miles east of Tabernash.

Datum of gage is 8,338.01 feet above mean sea level, unadjusted. 

Drainage area.- 50.7 square miles. 

Records available.- September 1934 to September 1949. Records since May 15, 1949, equivaient to earlier records if diversion through Moffat water tunnel is added to flow past

station. 

Average discharge.- 15 years, 40.0 second-feet (including diversion thr

tunnelJ.

Moffat water

00 feet);

tunnelj.

Extremes.- Maximum discharge during year, 470 second-feet June 18 (gage height, 4. 

minimum daily not determined, occurred during period of no gage-height record.

1934-49: Maximum discharge, 506 second-feet June 15, 1935 (gage height, 4.40 feet), 

am rating curve extended above 250 second-feet; no flow Feb. 15 to Mar. 13, 1937, Feb.

and perhaps other days in winter months

Rating tables, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Nov.

1.6

1.7

4.5 

8.5

1.6

1.7

1.8 

2.1

Nov. 9 to Sept. 30 

7.5 2.4

47

83

2.6 112

3.1 210

3.8 410

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.9 

7.7 

6.9 

6.5 

7.3

7.7 

7.3 

7.3 

8.5 

8.1

7.3 

7.3 

7.3 

6.9 

6.9

8.1 

8.5 

8.5 

11 

8.5

7.3 

7.3 

7.3 

7.3 

6.9

7.7 

6.9 

7.7 

8.1 

7.7 

7.3

Nov.

7.3 

8.1 

11 

9.9 

8.6

10 

9.2 

9.4 

*10 

9.4

' 7.8

Dec.

C)

, 7.0

Jan.

(*)

. 5.0

Feb.

(*)

( 2.0

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mfl v

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

> 4.0 

(*)

Apr.

5.5 

6.0 

6.5 

7.2 

8.0

10

11

13 

15 

16

16 

18

26 

40 

48

46 

44 

*40 

43 

44

37 

41 

47 

59

64

63 

73 

79 

84 

76

Secondfoot-days

239.0 

248.9 

217.0

12,654.0

155.0 

56.0 

124.0 

1,086.2 

3,340 

6,883 

2,706 

671 

326.2

16,052.3

May

58 

55 

73 

86 

91

75 

70 

63 

62 

74

86 

121 

132 

121 

152

166 

142 

128

121 

116

103 97- 

91 

93

96

116 

136 

144 

154 

164 

154

Maximum

11 

11

308

84

166 

386 

200 

41 

18

386

June

132 

117 

108 

144 

198

196 

182 

182 

218 

225

208 

248

299 

296 

290

299 

377 

386 

323 

323

305 

287 

278 

220 

182

190 

202 

180 

154 

134

July

126 

128 

125 

158 

180

182

200 

174 

156 

136

109 

108 

87 

76 

74

64 

63 

58 

59 

52

49 

43 

42 

42 

41

38

32 

30 

27 

24 

23

Aug.

22 

30 

41 

31

31 

29 

27 

37

27

26 

23

21

20 

20 

21 

17 

17

16 

15 

15 

14 

14

14 

14 

13 

13 

14 

13

Minimum Mean

6.5 7.71 

8.30 

7.0

34.6

5.0 

2.0 

4.0 

5.5 36.2 

55 108 

108 229 

23 87.3 

13 21.6 

8.4 10.9

44.0

Sept.

14 

13 

14 

18 

14

12 

12 

11 

11

12

13 

12 

11 

11 

11

9.8 

9.8 

8.8 

8.8 

8.8

8.4 

8.8 

8.4 

8.8 

8.4

8.8 

8.8 

8.4 

8.4 

14

Runoff In 

acre-feet

474 

494 

430

25,100

307 

111 

246 

2,150 

6,620 

13,650 

5,370 

1,330 

647

31,830

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 5-8, Mar. 16 to Apr. 14. No gage-height record Nov. 9 to Mar. 15 (stage-discharge relation affected by ice during most of period); discharge 

computed on basis of 4 discharge measurements, weather records, and records for nearby stations.
TRIBUTARIES ABOVE GUNNISON RIVER 63

Meadow Creek near Tabernash, Colo.

Location.- Water-stage recorder, lat. 40°02'55", long. 105°46'30", in sec. 15, T. IN., R. 

75 W., 5 miles northeast of Tabernash.

Drainage area.- 7.0 square miles.

Records available.- May 1936 to September 1949 (no winter records 1937, 1941-44).

Extremes.- Maximum discharge during year, 190 second-feet June 9, from rating curve ex- 

 tended above 100 second-feet; maximum gage height, 3.65 feet Apr. 27 (backwater from 

ice); minimum discharge not determined, occurred during period of no gage-height record.

1936-49: Maximum discharge, 244 second-feet June 9, 1944 (gage height, 3.72 feet), 

from rating curve extended above 85 second-feet; probably no flow at times during ice 

periods.

Remarks.- Records good except those below 10 second-feet and those for period of ice 

effect or no gage-height record, which are fair. No diversion above station.

Revisions (water year).- W 1089: 1945(M).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

1.2

1.0 

.9 

.8 

1.0

1.0 

1.0 

1.3 

1.7 

1.6

1.4

1.3 

1.2 

1.2 

1.3

*1.5 

1.3 

1.5 

1.7 

1.6

1.4

1.3 

1.2 

1.2 

1.2

1.2 

1.1 

1.1 

1.2 

1.2 

1.1

Nov.

1.1 

1.1 

1.2 

bl.l 

.9

.9

Dec.

 0.8

Jan.

' 0.7

Feb.

> 0.5

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

Mfl v

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter. year 1948-49 .......................

Mar.

1 0.7

Apr.

3.7 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

*b.8 

b.8

b.9 

bl.l 

bl.4 

bl.7 

bl.6

bl.6 

bl.5 

b2.0 

b4.0 

b6.2

blO 

b!6 

b25

b36 

b35

Secondfoot -days

38.7 

27.9 

24.8

2,933.0

21.7 

14.0 

21.7 

155.5 

1,378 

2,487 

682.5 

154.6 

53.9

5,060.3

May

29 

25 

26 

29 

24

22 

18 

16 

17 

23

25 

34

30 

27 

50

52 

47 

39 

42 

33

24 

22 

24 

41

67

100 

100 

88 

107 

113 

84

Maximum

1.7

132

36 

113 

138 

56

14

3.0

138

June

61 

49 

53

80 

125

104 

81 

80 

122 

108

110 

125 

138 

118 

105

110 

116 

100 

92 

86

81 

70 

62 

55 

49

48 

52 

42 

34 

31

July

29 

26 

24 

42 

50

50 

56 

49 

44

31

24 

22 

19 

19

17

16 

15 

14 

15 

14

14

11 

11 

11 

10

9.8 

8.9 

8.4 

8.1 

7.4 

6.9

Minimum

0.8

-

.7 

16 

31 

6.9 

1.8 

1.4

-

Aug.

6.7 

6.7 

7.4 

9.4 

7.2

6.9 

6.2 

6.2 

11 

14

9.1 

6.9 

5.8 

4.9

4.E

3.8 

3.6 

3.6 

3.0 

2.9

2.6 

2.5 

2.4 

2.4 

2.4

3.1 

2.0 

2.0 

1.9 

1.8 

2.0

Mean

1.25 

.93 

.8

8.01

.7 

.5 

.7 

5.18 

44.5 

82.9 

22.0 

4.99 

1.80

13.9

Sept.

2.2 

1.9 

2.4 

3.0 

2.2

2.0 

1.8 

1.8 

1.8 

1.8

2.2 

2.0 

1.8 

1.8 

1.8

1.7 

1.6 

1.5

1.6 

1.5

1.5 

1.5 

1.4 

1.4 

1.4

1.4

1.7 

1.6 

1.8 

1.8

Runoff In 

acre-feet

77 

55 

49

5,820

43 

28 

43 

308 

2,730 

4,930 

1,350 

307 

107

10,030

Peak discharge (base, 150 sec.-ft.).- June 5 (7 p.m.) 181 sec.-ft.; June 9 (6 190 sec.-ft.;

June 12 (8 p.m.) 186

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 5 to Apr. 13 (stage-discharge relation affected by Ice during most 

of period); discharge computed on basis of weather records and records for stations on nearby streams.
64 TRIBUTARIES ABOVE GUNNISON RIVER 

Williams River near Leal, Colo.

Location.- Water-stage recorder, lat. 39°50', long. 106°03', in sec. 31, T. 2 S., R. 77 

 w., just downstream from Kinney Creek and 2 miles north of Leal.

Drainage area.- 89.5 square miles.

Records available.- October 1933 to September 1949 in reports of Geological Survey, July 

1933 to aeptemoer 1949 in reports of State engineer. Records since May 10, 1940, 

equivalent to earlier records if diversion to Jones Pass tunnel is added to flow past 

station.

Average discharge.- 16 years, 105 second-feet (including diversions through Jones Pass 

tunnel).

Extremes.- Maximum discharge during year, 1,140 second-feet June 17 (gage height, 3.52 

reet); minimum daily, 17 second-feet Mar. 25.

1933-49: Maximum discharge observed, 1,530 second-feet June 21, 1938 (gage height, 

3.81 feet), from rating curve" extended above 1,000 second-feet; minimum daily, 13 

second-feet Dec. 28, 29, 1939.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Transmountain diversion above station to Jones Pass tunnel (see p. 26).

Revisions.- W 1039: Drainage area.

Rating table, water year 1948-49 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Nov. 7, 

Dee. 26 to Jan. 16, Mar. 8-31, Apr. 6 to May-16)

O.4 21 1.0 94 2.2 435 

.5 29 1.2 128 2.6 61O 

.6 38 1.5 194 3.1 870 

.7 50 1.8 285

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28. 

29 

30 

31

Oct.

34 

30 

28 

27 

28

30 

30 

30 

33 

32

30 

29 

27 

27 

28

28 

26 

29 

30 

29

27 

27 

27 

27 

26

27 

27 

28 

27 

27 

27

MOV.

27 

27 

28 

27 

27

29 

29 

28 

28 

29

29 

27 

28 

27 

27

27 

27 

26 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

27 

26

Dec.

26 

26 

26 

26 

25

25 

25 

25 

25 

25

25 

25 

25 

25 

25

24 

24 

24 

23 

23

23 

23 

23 

23 

23

23 

23 

23 

23 

23 

23

Jan.

22 

22 

22 

22 

22

21 

21 

21 

21 

21

21 

21 

21 

21 

21

22 

2i 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

19 

19 

19

Feb.

19 

19 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19

19

19 

19 

19 

18 

18

18 

18 

18 

18 

18

16 

18 

18

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Mfltr

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

19 

18 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

2O 

20 

21

20 

20 

19 

20 

20

20 

18 

20 

20 

17

19 

19 

20 

18 

18 

18

Apr.

18 

20 

20 

18 

18

21 

22 

24 

26 

23

2O 

26 

30 

27 

24

27 

32 

35 

34

37

36 

36 

44 

57 

72

78 

83 

91 

107 

99

Secondfoot -days

882 

82O 

75O

34,349

640 

522 

604 

1,205 

4,823 

16,544 

9,915 

2,135 

1,176

40,016

May

75 

80 

110 

130 

124

99 

86 

81 

80 

94

115 

140 

148 

138 

172

177 

163 

144 

144 

155

134 

123 

115 

124 

161

244

25O 

278 

299 

324 

316

Maximum

34 

29 

26

737

22 

19 

21 

107 

324 

888 

605 

104 

51

688

June

260 

200 

187 

20O 

222

260 

292 

299 

355 

395

443 

560 

620 

635 

64O

740 

888 

882 

846 

858

864 

828 

780 

690 

65O

630 

65O 

59O 

556 

524

July

528 

507 

5O7 

507 

528

605 

590 

503 

459 

423

379 

348 

327 

306 

282

2 6O 

247 

242 

250 

244

211 

192 

189 

200 

200

175 

159 

ISO 

142 

134 

121

Aug.

96 

92 

1O4 

97 

89

84 

83 

84 

91 

97

83 

77 

74 

72 

68

67 

65 

65 

60 

56

54 

53 

51 

50 

48

48 

46 

45 

44 

48 

44

Sept.

44

43 

46 

51 

45

43 

59 

39 

38 

40

42 

42 

38 

38 

36

35 

38 

38 

38

37

36 

35 

35 

34 

34

36 

37 

35 

36 

48

Minimum Mean l «£

26 28.5 1,750 

26 27.3 1,630 

23 24.2 1,490

18 93.8 68,150

19 2O. 6 1,270 

18 18.6 1,040 

17 19.5 1,200 

18 40.2 2,390 

75 156 9,570 

187 551 32,810 

121 320 19,670 

44 68.9 4,230 

34 39.2 2,330

17 110 79,380

Note.- Mo gage-height record Jan. 17 to Feb. 15; discharge computed on basis of weather records, 

recorded range in stage, and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 65

Williams River near Parshall, Colo.

Location.- Water-stage recorder, lat. 40°00', long. 106°11', in SE£ sec. 36, T. IN.,

 R. 79 W., 150 feet downstream from bridge on State Highway 286, 2j miles upstream 

from Battle Creek, and 4 miles south of Parshall. Datum of gage is 7,805.00 feet 

above mean sea level, unadjusted.

Drainage area.- 186 square miles.

Records avaliaDle.- July 1904 to September 1924 and October 1933 to September 1949 in

 reports or ueological Survey. July 1904 to September 1924 and June 1933 to September 

1949 in reports of State engineer. Records since May 10, 1940, equivalent to earlier 

records if diversion to Jones Pass tunnel is added to flow past station.

Average discharge.- 36 years (1904-24, 1933-49), 156 second-feet (including diversion 

tnrougn Jones fass tunnel).

Extremes.- Maximum discharge during year, 1,180 second-feet June 18 (gage height, 3.81 

feet); minimum daily, 31 second-feet Jan. 16.

1904-24, 1933-49: Maximum discharge observed, 2,570 second-feet June 14, 1918 

(gage height, 6.0 feet, site and datum then in use), from rating curve extended 

above 1,400 second-feet; a higher discharge probably occurred June 15, 1918, when gage 

was destroyed; minimum daily, 10 second-feet Sept. 15-17, 1934.

Remarks.- Records good except those for periods of ice effect, which are fair. Transmountain diversions (see p. 26) and diversions for irrigation above station.

Rating tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 30 to Nov. 11,

Nov. 17, Apr. 6 to May 16)

Oct. 1 to Nov. 17 Nov. 18 to Sept. 30

1.2 39 1.2 39 1.5 82 2.2 305 

1.3 52 1.3 50 1.7 132 3.0 690 

1.4 69 1.4 64 1.8 160 3.7 1,110

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

52 

46 

42 46' 

52

57 

54 

54 

60 

59

55 

54 

52 

52 

52

54 

51 

52 

55 

55

52 

49 

51 

49 

47

46 

46 

47 

48 

49 

48

Nov.

47 

48 

52 

51 

51

60 

55 

52 

60 

60

55 

53 

*49 

46 

45

48 

52 

50 

41 

46

44 

47 

50 

50 

47

45 

43 

44 

45 

47

Dec.

49 

47 

49 

49 

49

45 

41 

44 

42 

40

40 

45 

*43 

42 

42

43 

44 

46 

46 

46

47 

46 

45 

39 

35

37 

40 

42 

42 

39 

38

Jan.

38 

39 

38 

38 

36

34 

34 

34 

35 

37

37 

38 

39 

*34 

33

31 

33 

33 

33 

34

36 

37 

35 

34 

35

38 

39 

38 

38 

37 

37

Feb.

37 

37 

38 

38 

38

37 

38 

38 

39 

41

43 

45 

45 

45 

44

*47 

45 

42 

42 

44

45 

43 

42 

43 

45

46 

43 

43

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

mber . ...... . . ............. .......

lendar year 194E

ter year 1948-49 .......................

Mar.

44 

40 

41 

42 

41

40 

40 

40 

41 

42

42 

42

40 

37 

40

40 

36 

42 

40 

42

*37 

43 

37 

37 

36

39 

35 

36 

41 

37 

37

Apr.

37 

36 

36 

36 

37

40 

45 

49 

49

47

42 

48 

57 

51 

48

50 

63 

75 

75 

89

87 

94 

109 

149 

192

202 

251 

258 

262 

240

Secondfoot-days

1,586 

1,483 

1,342

43,505

1,112 

1,173 

1,227 

2,854 

8,383 

19,696 

11,641 

3,239 

1,837

55,573

May

178 

178 

237 

269 

254

209 

188 

170 

160 

195

234 

301 

305 

289 

345

358 

325 

277 

269 

313

265 

230 

181 

181 

234

289 

341 

368 

410 

420 

410

Maximum

60 

60 

49

784

39 

47 

44 

262 

420 

1,060 

768 

157 

89

1,060

June

345 

265

234 

251 

273

317 

358 

363 

455 

500

540 

675 

798 

822 

792

846 

1,010 

1,060 

984 

972

954 

942 

918 

852 

744

732 

738 

696 

650 

610

July

580 

575 

540 

585 

585

660 

768 

645 

555 

530

440 

405 

350 

317 

301

281 

273 

251 

258 

240

230 

206 

216 

273 

309

262 

237 

209 

198 

188 

174

Aug.

143 

132 

318 

143 

126

129 

116 

127 

146 

157

124 

116 

111 

106 

101

99 

99 

99 

92

87

82 

80 

78 

80 

77

78 

77 

73 

73 

77 

73

Minimum Mean

42 51.2 

41 49.4 

35 43.3

34 119

31 35.9 

37 41.9 

35 39.6 

36 95.1 

160 270 

234 657 

174 376 

73 104 

48 61.2

31 152

Sept.

73 

71 

75 

89 

77

69

66 

64 

63 

60

51 

56 

54 

56 

54

56 

57 

60 

60 

60

58

57 

57 

57 

57

57 

58 

54 

48 

«3

Runoff In 

acre-feet

3,150 

2,940 

2,660

86,290

2,210 

2,330 

2,430 

5,660 

16,630 

39,070 

23,090 

6,420 

3,640

110,200

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 12-16, Nov. 18 to Mar. 15.
66 TRIBUTARIES ABOVE GUNNISON RIVER 

Williams Fork Reservoir near Parshall, Colo.

Location.- Tape gage, lat. 40°02', long. 106°12', at dam on Williams River in sec. 23, T.

 1 N., R. 79 W., 2 miles above mouth of Williams River and 2£ miles southwest of

Parshall. Datum of gage is mean sea level (levels of city engineer of Denver).

Records available.- October 1948 to September 1949 in reports of Geological Survey. 

October 1938 to September 1949 in files of city engineer of Denver.

Extremes.- Maximum contents observed during year, 6,620 acre-feet July 19 to Sept. 3 

(elevation, 7,703.0 feet); minimum observed, 677 acre-feet Sept. 15-30 (elevation, 

7,664.4 feet).

Remarks.- Reservoir is formed by concrete arch dam. Dam completed in October 1938;

storage began in April 1939. Capacity of reservoir, 7,180 acre-feet between elevations 

7,633 feet (invert of outlet pipe) and 7,705 feet (top of taintor gates on spillway). 

No dead storage. Figures given herein represent usable contents. Water is used to 

compensate for diversions through Jones Pass tunnel (see p. 26) made during periods 

when flow of Colorado River is insufficient to supply decreed prior water rights below 

Williams River. Contents computed from once-daily readings at 8 a.m.

Cooperation.- Gage-height record furnished by city engineer of Denver.

Monthly gage height and contents, water year October 1948 to September 194S

Date

Dec. 31. ........................

Calendar year 1948. ...........

Mar. 31. ........................

Aug 31

Sept. 30. ........................

Water year 1948-49. ...........

Elevation 

(feet)t

7,671

-

7,664.4

-

Contents 

(acrefeet)

1,210

1,210

-

1,210

5,470

677

-

Change in 

contents 

during 

month 

(acre-feet)

-3,070

0

-

0

0

0

0

+4,260

+1,030

0

-5,940

-5,940

t Elevation at 8 a.m.
TRIBUTARIES ABOVE GUNNISON RIVER 67

Williams River below Williams Fork Reservoir, Colo.

Location.- Water-stage recorder, lat. 40°02', long. 106°12', in NE^- sec. 23, T. IN., R. 

79 W., a quarter of a mile downstream from Williams Fork Reservoir Dam, about 2 miles 

upstream from mouth, and 2 miles southwest of Parshall.

Drainage area.- 234 square miles.

Records available.- October 1948 to September 1949 (no winter records).

Extremes.- Maximum discharge during year, 1,240 second-feet June 18 (gage height, 5.70 

feet), from rating curve extended above 640 second-feet; minimum daily recorded, 3.3 

second-feet Oct. 1, from rating curve extended below 50 second-feet.

Remarks.- Records excellent except those above 700 second-feet, which are good, and those 

below 40 second-feet, which are poor. Flow regulated by Williams Fork Reservoir (see 

preceding page). Diversions above station for irrigation. Transmountain diversion 

through Jones Pass tunnel, see page 26.

Discharge, in second-feet, water year October 1943 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30

31

Oct.

3.3 

57 

70 

68 

63

65 

72 

75 

75 

75

82 

80 

79 

66 

49

65 

78 

92 

125 

175

205 

193 

188 

182 

168

150 

150 

150 

149 

149 

147

Nov.

147 

147 

276 

400 

384

363 

186

Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Ua

ber. ................... ------- ...... -

mber 1-7

lendar year

ter year ........................

Mar. Apr.

Secondroot-days

3,345.3 

1,903

-

2,018 

20,839 

11,141 

3,418 

4,871

-

May

341 

363 

413 

429 

472

Maximum

205 

400

-

472 

1,160 

789 

164 

394

-

June

413 

318 

264 

264 

297

363 

410 

432 

535 

550

524 

662 

825 

915 

807

865 

1,020 

1,160 

1,080 

1,050

1,040 

1,020 

985 

930 

725

625 

772 

730 

646

612

July

568 

561 

535 

568 

592

654 

789 

692 

561 

550

274 

274 

312 

286 

242

234 

215 

215 

292 

253

242 

217 

195 

242 

328

294 

199 

213 

195 

188 

161

Minimum

3.3 

147

-

341 

264 

161 

63 

40

-

Aug.

145 

126 

137 

147 

141

131 

119 

116 

134 

156

164 

141 

116 

99 

98

113 

113 

108 

103 

94

88 

88 

84 

82 

82

94 

95 

92 

82 

67 

63

Mean

108 

272

-

404 

695 

359 

110 

162

-

Sept.

88 

99 

201 

394 

358

325 

341 

323 

299 

292

282 

272 

260

246 

101

40 

59 

74 

72 

72

72 

72 

72 

72 

72

72 

72 

59 

54 

56

Runoff in 

acre-feet

6,640 

3,770

-

4,000 

41,330 

22,100 

6,780 

9,660

-
68 TRIBUTARIES ABOVE GUNNISON RIVER

Keyser Creek near Leal, Colo.

Location.- Water-stage recorder, lat. 39°54'50", long. 106°01'00", In SE£ sec. 33, T. 

1 s., K. 77 W., 200 feet upstream from Slmpson Creek and 7 miles northeast of Leal.

Drainage area.- 13.7 square miles.

Records available.- August 1942 to September 1949 (no winter records 1942-43).

Extremes.- Maximum discharge during year, 149 second-feet June 17 (gage height, 2.80 

feet), from rating curve extended above 90 second-feet; minimum not determined, 

occurred during period of no gage-height record.

1942-49: Maximum discharge, 167 second-feet May 21, 1948, from rating curve extended above 60 second-feet; maximum gage height, 2.89 feet June 21, 1947; minimum 

discharge not determined, occurred during period of no gage-height record.

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

Ho diversions or regulation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.9 

5.8 

5.5 

5.2 

5.8

5.5 

5.5 

6.3 

6.0 

5.8

5.5 

5.2 

5.0 

5.0 

5.0

5.0 

4.8 

5.0 

5.Z 

5.2

5.0 

4.8 

4.7 

4.8 

4.7

4.7 

4.8 

4.8 

4.8 

4.8 

4.7

Nov.

4.5

Dec.

> '4.0

Jan.

3.8

Feb.

3.6

Month

Octo 

Hove

Dece

Ca

Janu 

Febn 

Marc 

Aprl 

Mav

June 

July 

Augui 

Sept

Va

lendar year 1948

1.. .....................................

tsar year 1948-49 ...............

Peak discharge (base, 100 sec. -ft.}.- May

July e (6:30 p.m.; 124 sec. -ft.

Mar.

3.5

Apr.

3.5 

3.8 

3.8 

3.6 

3.8

4.0 

4.0 

4.3 

4.4 

4.2

4.0 

4.4 

5.0 

4.5 

4.3

5.0 

6.2 

6.8 

7.0 

7.4

7.4 

7.6 

9.4 

12 

13

14 

14 

17 

18 

14

Secondfoot-days

161.8 

135.0 

124.0

5,761.9

117.8 

100.8 

108.5 

220.4 

977 

2,657 

1,369 

455 

257.2

6,683.5

May

13 

14 

17 

22 

21

19 

17

16 

15 

17

21 

28 

25 

26

36

38 

31 

27 

29

27

23 

23 

24 

31 

44

63 

58 

60 

67 

65 

61

Maximum

6.9

118

18 

67 

128 

77 

22 

12

128

June

57 

51 

50 

55 

60

63 

63 

65 

76 

76

79 

94 

98 

104 

104

115 

128 

127 

124 

126

122 

117 

111 

94 

89

85 

94 

83 

76 

71

Minimum

July

4.7

-

3.5 

13 

50 

19 

10 

6.5

-

71 

66 

67 

68 

71

77 

74 

66 

60 

57

51 

48 

45 

42 

40

37 

37 

37 

35 

34

32 

29 

27 

33 

34

26 

23 

22 

21 

20 

19

Aug.

19 

18 

19 

19 

17

17 

16 

19 

20 

22

17 

16 

15 

15 

15

14 

14 

14 

13 

12

12 

12 

12 

12 

11

11 

11 

11 

11 

11 

10

Mean

5.22

4.5 

4.0

15.7

3.8 

3.6 

3.5 

7.35 

31.6 

88.6 

44.2 

14.7 

8.57

18.3

Sept.

11 

10 

11 

12 

11

11 

10 

10 

8.9 

8.9

8.6 

9.5 

9.2 

9.2 

8.3

8.6 

8.0 

7.7 

7.1 

6.8

7.1 

6.8 

6.8 

6.5 

6.5

6.5 

6.5 

6.5 

7.4 

9.8

Runoff In 

acre-feet

321 

268 

246

11,430

234 

200 

215 

437 

1*940 

5,270 

2,720 

902 

510

13,260

26 (7 p.m.) 107 sec. -ft.; June 17 (7 p.m.) 149 sec. -ft.;

Note.- No gags-height record Oct. 17 to Apr. 25, May 1-10; dlsohaoge computed on basis of 4 discharge measurements made near mouth, weather records, and records for Williams River near Leal.
TRIBUTARIES ABOVE GUMISON RIVER 69

Troublesome Creek near Troublesome, Colo.

Location.- Water-stage recorder, lat. 40"04', long. 106 G 19', In sec. 12, T. IN., R. 80;, 

W., 50 feet upstream from bridge on U, S. Highway 40, half a mile upstream from 

mouth, and half a mile west of old Troublesome post office. Datum of gage is 7,344.13 

feet above mean sea level, datum of 1929. Prior to Sept. 28, 1949, at site a. quarter 

of a mile upstream. Datum of gage was 7,351.16 feet above mean sea level, datum of 

1929.

Drainage area.- 178 square miles.

Records available.- July 1904 to October 1905, April 1922 to September 1924, October

1941 to September 1949. July 1937 to September 1941 in files of Bureau of Reclamation.

Average discharge.- 12 years (1904-5, 1921-24, 1941-49), 55.3 second-feet.

Extremes.- Maximum discharge during year, 394 second-feet May 16 (gage height, 3.52 feet), 

from rating curve extended above 250 second-feet; minimum daily, 16 second-feet Oct. 27, 

Nov. 1.

1922-24, 1941-49: Maximum discharge, 1,230 second-feet July 23, 1945 (gage height, 

4.80 feet), from rating curve extended above 370 second-feet; minimum daily, 1.4 second-feet July 11, 1946.

Remarks.- Records fair. Diversions above station for irrigation. 

Revisions.- W 959: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

21 

19 

18 

19 

22

23 

23 

22 

22 

18

19 

22 

28 

27 

27

28 

27 

26 

27 

26

26 

25 

19 

18 

17

17 

16 

17 

18 

19 

17

Nov.

16

17 

19 

19 

20

21 

19 

D19 

D19 

20

24 

*28 

25 

26 

25

23 

23 

23 

23 

22

22 

23 

21 

21 

21

22 

21

20 

20 

21

Dec.

21 

21 

20 

20 

20

20 

22 

23 

24 

23

22 

*22 

22 

22 

23

24 

23 

22 

22 

22

22 

20 

20 

20 

21

23 

23 

24 

23 

22 

22

Jan.

23 

23 

24 

23 

21

20 

21 

21 

21 

21

20 

19 

19 

19

 19

19 

18 

19

20 

19

19 

19 

18 

19 

19

19 

19 

18 

18 

20 

21

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Feb.

21 

21 

21 

21

21

21 

21 

21 

22 

21

21 

21 

20 

20 

20

*20 

20 

21 

21 

21

21 

21 

21

20 

20

21 

21 

21

lendar year 1948

ter year 1948-49 .......................

Mar.

22 

22 

21 

20

20

22 

23 

23 

24 

24

26 

27 

28 

29 

*30

31 

30 

4E 

36 

37

32 

39 

33 

33 

36

32 

31 

29 

31 

28 

26

Apr.

29 

32 

30 

29 

34

42 

42 

45 

43

39

34 

43 

54 

42 

36

47 

55 

62 

64 

82

94 

94 

122 

159 

175

183 

181 

199 

217

220

Secondfoot-days

673 

643 

678

19,557.1

618 

582 

890 

2,538 

7,325 

5,948 

1,615 

900 

895

23,305

May

190 

172 

199 

211 

218

208 

191 

183 

175 

191

215 

242 

290 

272 

308

367 

337 

285 

250 

231

224 

197 

193 

199 

206

226 

240 

248 

272 

272 

313

Maximum

28 

28 

24

543

24 

22 

45 

220 

367 

288 

132 

38 

51

367

June

285 

240 

204 

209 

202

209 

213 

195 

193 

197

226 

254 

288 

270 

236

217 

236 

252 

242 

217

204 

183 

162 

162 

136

112 

124 

110 

92 

78

July

Minimum

16, 

16 

20

4.8

18 

20 

20 

29 

172 

78 

22 

21 

18

16

70 

63 

66 

57 

62

46 

53 

76 

60 

53

43 

38 

37 

32 

27

25 

25 

22 

26 

39

45 

38 

49 

63 

132

94 

72 

62 

56 

46 

38

Aug.

36 

36 

38 

36 

32

35 

34 

32 

38 

37

33 

28 

27 

25 

22

25 

29 

30 

27 

26

25 

25 

25 

28 

28

27 

25 

24 

24 

22 

21

Mean

21.7 

21.4 

21.9

53.4

19.9 

20.8 

28.7 

84.6 

236 

198 

52.1 

29.0 

29.8

63.8

Sept.

22 

22 

51 

41 

34

31 

29 

28 

28 

32

37 

41 

35 

40 

36

34 

32 

30 

30 

29

29 

30 

27 

22

20

18 

18 

20 

21 

28

aSe"een

1,330 

1,280 

1,340

38,780

1,230 

1,150 

1,770 

5,030 

14,530 

11,800 

3,200 

1,790 

1,780

46,230

Peak discharge (base. 350 sec.-ft.).- May 16 (7 a.m.) 394 sec.-ft. 

* winter discharge measurement made on this day.

b Stage-discharge relation affected by lc«.

Note.- No gage-height record Nov. 10 to Mar. 14 (stage-discharge relation affected by Ice during 

most- of period); discharge computed on basis of 4 discharge measurements, weather records, and records for stations on nearby streams.
70 TRIBUTARIES ABOVE GUNNISOU RIVER

Blue River at Dillon, Colo.

Location - Water-stage recorder, lat. 39°36'50", long. 106°03'05", in sec. 18, T. 5 S., 

RT~77~W., 5 -feet upstream from bridge on U. S. Highway 6 at edge of Dillon, a short 

distance upstream from Snake River and Tenmile Creek. Datum of gage is 8,821.42 

feet above mean sea level, unadjusted.

Drainage area.- 129 square miles.

Records available.- October 1910 to September 1949.

Average discharge.- 39 years, 119 second-feet.

Extremes.- Maximum discharge during year, 950 second-feet June 18 (gage height, 4.14 

feet); minimum daily, 22 second-feet Jan. 30.

1910-49: Maximum discharge observed, 1,180 second-feet June 2, 1914, June 14, 

1924; maximum gage height observed, 4.35 feet June 2, 1914; minimum discharge observed, 7.4 second-feet Mar. 22, 1933 (discharge measurement).

Remarks.- Records good except'those for period of no gage-height record, which are fair. 

Diversions above station for irrigation are of little significance.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

45 

46 

46 

46 

46

46 

46 

45 

46 

47

46 

45 

44 

43 

43

44

43 

43 

42 

42

42 

41 

41 

40

38

38 

38 

36 

37 

36 

36

Nov.

35 

35 

36 

36

34

34 

34 

34 

34 

34

34 

35 

35 

34 

34

34 

*34

32 

29 

31

34 

35 

35 

33

32

32 

32 

29 

27 

29

Dec.

31 

30 

30 

30 

30

30 

30 

29 

27 

27

29 

31

31 

*28 

27

27 

28 

29 

28 

28

27 

27 

29 

29 

24

26 

30 

29 

28 

27 

28

Jan.

30 

29 

28 

27 

25

25 

26 

28 

28 

29

29 

29 

28 

27 

27

*26 

23 

25 

27 

27

28 

30 

32 

31 

30

28 

26 

24 

23

22 

24

Feb.

26 

26 

28 

27 

25

25 

25 

25 

25 

26

29 

30 

30 

29 

28

28 

28 

*28 

28 

29

29 

29 

29 

28 

27

27 

26 

25

Month

Oo to 

Hove 

Deoe

Ca

Janu 

Febn 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

25 

25 

25 

25 

25

26 

27 

27 

26 

25

25 

24 

24 

24 

24

25 

25 

25 

26 

26

26 

25 

25 

25 

25

*24 

24 

25 

24 

24 

25

Apr.

25 

25 

24 

24 

25

27 

30 

33

32 

30

28 

33 

38 

36 

32

34 

36 

38 

39 

41

42 

47 

*51. 

59 

70

86 

99 

108 

113 

123

Secondroot-days

1,317 

996 

884

45,532

841 

765 

776 

1,428 

5,002 

17,721 

12,346 

3,652 

2,076

47 yjJ04

May

121

101 

99 

116 

134

131 

118 

108 

99 

96

108 

123 

128 

131 

139

173 

173 

165 

160 

165

167 

160 

154 

152 

157

176 

206 

260 

326 

326 

330

Maximum

47

36 

31

891

32 

30 

27 

123 

330 

 900 

694 

184 

92

900

June

326 

309

292 

316 

421

505 

477 

445 

433 

445

473 

565 

646 

680 

725

716 

828 

900 

875 

851

824 

824 

784 

689 

576

604 

594 

558 

536 

504

July

492 

626 

545 

536 

536

558 

694 

694 

640 

568

484 

444 

408 

392 

368

333 

322 

305 

312 

319

302 

274 

260 

260 

280

294 

256

232 

217 

202 

193

Minimum

36 

27 

24

23

22 

25 

24 

24 

96 

292 

192 

81 

50

22

Aug.

184 

175 

175 

172 

160

152 

141 

134 

127 

125

125 

122 

120 

118 

117

113 

110 

108 

106 

103

96 

92 

90 

92 

90

88 

88 

86

81 

81 

81

Mean

42.5 

33.2 

28.5

124

27.1 

27.3 

25.0 

47.6 

161 

591 

398 

118 

69.2

131

Sept.

81 

81 

81 

84 

92

84

77 

71 

70 

68

70 

75 

92 

92 

84

75 

70 

68 

64 

63

61 

58 

56 

53

52

51 

50 

51 

50 

52

Runoff in 

aore-feet

2,610 

1,980 

1,750

90,310

1,670 

1,520 

1,540 

2,830 

9,920 

35,150 

24,49D 

7,240 

4,120

94,820

Peak discharge (base. 500 see.-ft.).- June 18 (1 p.m.) 950 sec.-ft.; July 7 (1 p.m.) 756 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Ho gage-height record Nov. 15 to Apr. 16,(stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 5 discharge measurements, weather records, and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 71

Blue River above Green Mountain Reservoir, Colo,

Location.- Water-stage recorder, lat. 39°49'55", long. 106°13'25", in sec. 34, T. 2 S., 

K. 79 rf., 300 feet north of State Highway 9, Just upstream from high-water line of 

Green Mountain Reservoir, 1 mile downstream from Brush Creek, and 18 miles southeast 

of Kremmling.j Datum of gage is 7,946.56 feet above mean sea level, unadjusted.

Drainage area.- 479 square miles.

Records available.- May 1944 to September 1949.

Extremes.- Maximum discharge during year, 3,630 second-feet June 18 (gage height, 4.33 

feetjy ininimum daily, 80 second-feet Jan. 30.

1944-49: Maximum discharge, 3,750 second-feet June 21, 1947 (gage height, 4.36 

feet); minimum daily, 69 second-feet Dec.' 28, 1944, Jan. 4, 1945.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Many small diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

214 

196 

188 

172 

157

192 

184 

192 

204 

192

188 

188 

180 

180 

180

184 

164

160 

168 

160

151 

148 

148 

148 

145

145 

139 

148 

142 

142 

139

Nov.

136 

139 

148 

142 

130

b!25 

b!35 

b!40 

b!30 

b!30

b!30 

b!40 

b!40 

b!35 

*b!35

b!30 

130 

130 

110 

115

125 

125 

130 

125 

120

120 

120 

105 

100 

110

Dec.

120 

110 

110 

110 

110

110 

110 

110 

105 

110

115 

*120 

120 

115 

110

105 

105 

110 

105 

105

100 

100 

110

~90 110 

92 

110 

110 

105 

100 

100

Jan.

110 

110 

105 

100 

94

92 

98 

105 

110 

110

110 

110 

105 

105 

100

88 

84 

*98 

100 

105

105 

115 

120 

115 

110

105 

100 

92 

84 

80 

92

Feb.

96 

100 

110 

105 

100

92 

96 

96 

94 

105

110 

115 

110 

105 

100

100 

98 

*96 

96 

100

100 

100 

100 

100 

105

105 

105 

100

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Va

lendar year 1946

ter year 1948- 49 .......................

Mar.

100 

100 

100 

100 

105

105 

110 

110 

105 

100J

98 

96 

96 

96 

96

98 

100 

100 

105 

105

105 100' 

*100 

100 

98

100 

96 

100 

98 

100 

98

Apr.

96 

98 

95 

95 

96

104 

116 

125 

118 

111

106 

125 

145 

130 

120

125 

154 

188 

192 

218

218 

256 

318 

402 

462

494

550 

550 

628 

636

Secondfoot-days

5,238 

3,830 

3,342

169,290

3,157 

2,839 

3,120 

7,071 

24,820 

63,949 

42,474 

14,454 

7,370

181,664

Peak discharge (base, 2,550 sec. -ft.).- June 18 (4 a.m

May

508 

462 

529 

668 

700

613 

522 

474 

438 

468

571 

636 

692 

660 

860

927 

900 

820 

836 

918

788 

719 

684 

705 

812

1,030 

1,200 

1,310 

1,470 

1,490 

1,410

Maximum

214 

148 

120

3,070

120 

115 

11O 

636 

1,490 

3,330 

2,490 

664 

325

3,330

June

1,270 

1,070 

999 

1,200 

1,390

1,510 

1,380 

1,340 

1,480 

1,600

1,820 

2,520 

2,730 

2,780 

2,590

2,680 

3,050 

3,330 

3,140 

3,080

2,950 

2,860 

2,740 

2,540 

2,040

2,120 

2,120 

2,010 

1,850 

1,760

July

1,710 

1,900 

1,850 

1,900 

2,020

2,150 

2,490 

2,470 

2,090 

1,850

1,580 

1,410 

1,300 

1,240 

1,160

1,060 

1,050 

1,010 

1,070 

1,090

999 

892 

868 

999 

1,280

1,090 

927 

828 

788 

726 

677

Minimum

139 

100 

90

88

80 

92 

96 

95 

438 

999 

677 

290 

187

80

Aug.

650 

631 

657 

664 

612

575 

557 

545 

569 

650

593 

545 

521 

503 

474

441

430 

446 

414 

392

365 

355 

340 

340 

335

330 

315 

310 

300 

305 

290

Mean

169 

128 

108

463

102 

101 

101 

236 

801 

2,132 

1,370 

466 

246

498

.) 3,630 sec. -ft. ; July 7 (6 a.m.

Sept.

290 

285 

290 

325 

300

280 

252 

254 

249 

249

258 

320 

315 

300 

275

258 

245 

236 

228

217

191 

187 

187 

187 

187

187 

191 

191 

198 

228

Runoff in 

acre -feet

10,390 

7,600 

6,650

335,800

6,260

S.190 

14,030 

49,230 

126,800 

84,250 

28,670 

14,620

360,300

) 2,690 sec ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 17 to Mar. 22 (.stage-discharge! relation affected by led djurlng 

most of period)? discharge computed on basis of 3 discharge measurements, 'weather records, and records for stations on nearby streams.

939921 "O - 51 - 6
72 TRIBUTARIES ABOVE GUNNISON RIVER

Green Mountain Reservoir near Kremmling, Colo.

Location.- Mercury gage, lat. 39°52'45", long. 106°19'15", in Nfi£ sec. 15, T. 2 S., R. 80 

W., at Green Mountain Dam on Blue Rivgr, 0.6 mile upstream from Elliott Creek and 13 

miles southeast of Kremmling. Datum of gage is 7,800 feet above mean sea level (Bureau 

of Reclamation bench mark). Gager heights have been reduced to elevations above mean 

sea level.

Records available.- November 1942 to September 1949.

Extremes.- Maximum contents observed during year, 146,900 acre-feet June 22 to July 15 

(elevation, 7,950.00 feet); minimum observed, 4,2,480 acre-feet May 2 (elevation, 

7,879.76 feet).

1943-49: Maximum contents observed, 148,600 acre-feet July 3, 1947 (elevation, 

7,950.81 feet); minimum observed, 40,690 acre-feet Apr. 25, 1943 (elevation, 7,877.85 

feet); no storage prior to Nov. 16, 1942.

Remarks.- Reservoir is formed by an earth and rock-fill dam. Dam completed November 1942. 

Capacity of reservoir, 146,900 acre-feet between elevations 7,800 feet (sill of outlet 

gate) and 7,950 feet (crest of spillway). Dead storage, 7,760 acre-feet. Water is 

used for power development and storage for replacement of water diverted to South 

Platte River Basin during late irrigation season. Figures given herein are of usable 

contents.

Cooperation.- Records furnished by Bureau of Reclamation.

Monthly elevation and contents, water year October 1946 to September 1949

Data

Dao. 31....... ..................

Calendar year 1946. ...........

Sept. 30. ........................

Water year 1948-49. ...........

Elevation 

(feet)

7,921.91

-

7,949.18

7,947.14

-

Contents 

(acrefeet)

128,600

107,300

94,580

-

57,160

42,680

68,550

145,900

145,200

140,900

-

Change In 

contents 

during 

month 

(acre -feet)

-12,400

-IE, 720

-ZZ.4ZO

-ZZ,410

-15,010

-3,410

-11,070

+Z5.870

+78,350

-1,000

-700

-4,300

+1Z,300
TRIBUTARIES ABOVE GUNNISON RIVER 73

Blue River below Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 39°56', long. 106°21' in NE£ sec. 33, T. IS., R. 

BO w., just downstream from Spring Creek, 4 miles downstream from Green Mountain Dam, 

and 10 miles southeast of Kremmling.

Drainage area.- 623 square miles.

Records available.- October 1937 to September 1949.

Average discharge.- 12 years, 495 second-feet.

Extremes.- Maximum discharge during year, 2,870 second-feet June 84 (gage height, 5.10 

feet); minimum daily, 7 second-feet Apr. 2.

1937-49: Maximum discharge, 4,000 second-feet June 4, 1938 (gage height, 5.93 feet), 

from rating curve extended above 3,000 second-feet; minimum daily (prior to construction 

of Green Mountain Reservoir), 80 second-feet Feb. 18-24, 1938, Feb. 18, 19, 1940; no 

flow at times during 1943.

Remarks.- Records good except those for periods of no gage-height record, which are fair, 

ana those below 50 second-feet, which are poor. Flow regulated by Green Mountain Reservoir (see preceding page). Many small diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

56 

107 

40 

7» 

498

380 

102 

70 

68 

144

345 

164 

184 

116 

141

226 

84 

273 

158 

323

471 

456 

331 

139 

461

528 

509 

577 

48 

688 

219

Nov.

448 

402 

387 

342

170

135 

51 

373 

394 

473

336 

399 

123 

21 

330

363 

400 

308 

390 

134

121

508 

366 

406 

30

435 

180 

25 

450 

415

Dec.

385 

395 

25 

25 

25

615 

375 

410 

405 

430

140 

19 

319 

432 

347

458 

346 

185 

25 

337

314 

451 

446 

355 

25

25 

410 

415 

425 

420 

415

Jan.

25 

25 

460 

535 

450

445 

390 

295 

245 

605

590 

600 

610 

615 

360

300 

740 

750 

723 

736

752 

648 

390 

836 

750

383 

251 

164 

148 

230 

513

Feb.

673 

706 

730 

738 

653

312 

546 

597 

618 

651

402 

22 

25 

98 

150

248

236 

214 

203 

148

196 

229 

202 

259 

268

396 

237 

262

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apri

Itev

June 

July 

Augu 

Sept

We

lendar year 1948

ter year 1948-49 .......................

Mar.

188 

245 

214

205 

133

251 

194 

226 

218 

193

220 

198 

196 

236 

161

21 

51 

47 

61 

23

162 

82 

100 

170 

290

90 

25 

350 

300 

300 

350

Apr.

440 

7 

245 

570 

555

545 

555 

590 

615 

590

495 

525 

465 

445 

180

135 

25 

280 

295 

290

345 

480 

547 

545 

701

787 

730 

765 

752 

687

Secondfoot -days

7,985 

8,915 

9,399

195,231

14,564 

10,019 

5,500 

14, 186 

16,548 

34,529 

49,586 

17,160 

10,157

198,548

May

554 

741 

624 

628 

593

725 

620 

57 

562 

357

363 

320 

408 

126 

40

725 

682 

684 

708 

660

298 

40 

638 

569 

675

629 

897 

723 

418 

796 

688

Maximum

688 

508 

615

1,990

836 

738 

350 

787 

897 

2,700 

2,640 

957 

533

2,700

June

582 

526 

546 

242 

232

551 

460 

407 

424 

537

240 

245 

855 

875 

1,100

1,120 

1,150 

1,030 

667 

1,090

1,220 

1,570 

2,530 

2,640 

2,700

2,010 

2,470 

2,300 

2,320 

1,890

July

1,800 

1,980 

1,840 

2,090 

2,230

2,640 

2,400 

2,400 

2,400 

2,130

2,080 

1,760 

1,460 

1,510 

1,510

1,480 

1,310 

1,310 

1,250 

1,260

1.27O 

1,210 

1,070 

785 

1,520

1,850 

1,690 

1,250 

886 

983 

232

Minimum

40

21 

19

15

25 

22 

21 

7 

40 

232 

232 

125 

51

7

Aug.

957 

875 

744 

838 

834

517 

361 

908 

699 

618

883 

839 

559 

263 

547

645 

700 

548 

493 

125

200 

606 

821 

723 

390

364 

172 

172 

295 

221 

243

Mean

258 

297 

303

533

470 

358 

177 

473 

534 

1,151 

1,600 

554 

339

544

Sept.

203 

312 

51 

88 

387

368 

380 

380 

334 

198

176 

320 

280 

286 

321

272 

283 

201 

358 

502

533 

425 

463 

296 

308

512 

491 

468 

461 

500

Runoff In 

acre-feet

15,840 

17,680 

18,640

387,200

28,890 

19,870 

10,910 

28,140 

32,820 

68, 490 

98,350 

34,040 

20,150

393,800

Mote.- Ho gage-height record Nov. 25 to Dec. 10, Dec. 25 to Jan. 18, Mar. 23 to Apr. 22; discharge 

computed on basis of records of power output of power plant 4 miles upstream.
74 TRIBUTARIES ABOVE GONNISON RIVER

Snake River at Dillon, Colo.

Location.- Water-stage recorder, lat. 39°36'50", long. 106°03'05", in sec. 18, T. 5 S.,

 R. '/'/ W. , at private bridge at Dillon, 100 feet north of U. S. Highway 6 and 100 yards 

upstream from mouth. Datum of gage is 8,820.54 fe'et above mean sea level, unadjusted.

Drainage area.- 92 square miles.

Hecords available.- October 1910 to September 1919, December 1929 to September 1949.

Average discharge.- 29 years, 65.7 second-feet.

.Extremes. - Maximum discharge during year, 746 second-feet June 17 (gage height, 3.76 feet); 

minimum daily, 6.4 second-feet Oct. 24.

1910-19, 1929-49: Maximum discharge, 1,200 second-feet June 13, 1935 (gage height, 

4.25 feet), from rating curve extended above 500 second-feet; minimum daily, 3 secondfeet Nov. 9, 1912.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. One diversions above station by a ditch which diverts water for power. 

This diversion is in sec. 19, T. 5 S., R. 76 W., 6| miles above station; water is returned to Blue River just above mouth of Straight Creek. Discharge measurements of 

power ditch are given in following table:

Date

Oct. 20

Nov. 16

Dec. 15

Jan. 17

Feb. 19

Mar. 29

Second-feet

£1.6

18.7

19.0

12.7

10.9

12.1

Date

Apr. 18

May 4

24

June 9

July 9

Aug. 9

Second-feet

16.1

36.0

50.3

0

64.2

53.3

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

9.8 

9.4 

9.0

10 . 

13

9.8 

9.8 

10 

9.8 

9.4

9.4 

9.4 

9.4 

9.0 

9.0

9.0 

9.8 

8.3 

8.0 

7.3

7.0 

8.0 

7.0 

6.4 

8.0

7.6 

7.3 

7.0 

7.0 

7.0 

7.6

Nov.

8.3 

8.0 

8.0 

8.3- 

b7.6

b7.4 

8.0 

b8.0 

bll 

bll

12 

b!2 

b!2 

b!2 

b!2

12 

*12 

b!2 

blO 

b9.5

9.0 

9.0 

9.0 

8.8 

8.0

8.0 

8.0 

7.4 

8.0 

8.0

Dec.

8.2 

8.2 

8.0 

8.0 

8.0

8.0 

8.0 

8.0 

7.8 

7.2

7.2

8.0 

8.0 

*8.0 

8.0

b7.5 

8.6 

8.3 

bS.O 

8.6

8.6 

8.6 

8.6 

8.4 

7.8

8.0 

8.4 

8.4

8.2 

8.2 

8.4

Jan.

9.0 

9.4 

9.4 

9.0 

8.8

8.8 

9.0 

9.4 

10 

10

10 

10

10 

9.8

9.6

*9.6 

9.4 

10 

10 

10

10 

10 

11 

11 

11

10 

10 

9.8 

9.4 

9.2 

9.2

Feb.

9.4 

9.6 

9.6 

9.4 

9.2

8.6 

8.6 

9.8 

8.8 

8.8

8.8 

9.0 

9.0 

8.8 

8.6

8.2 

8.0 

*7.8 

7.8 

7.8

7.8 

8.0 

8.0 

8.0 

8.0

7.8 

7.6

7.6

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...;...................

Mar.

7.6 

7.8 

8.0 

8.0 

8.0

8.0 

8.0 

8.0 

8.0 

8.0

8.0 

8.2 

8.6 

8.6 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.4 

9.2 

9.0 

8.8

*8.6 

8.6 

9.0 

9.0 

9.8 

9.8

Apr.

12 

11 

11 

9.8 

8.6

9.0 

9.8 

9.8 

9.0 

8.6

9.0 

10 

14 

11 

11

11 

14 

16 

15 

16

17 

19 

26 

36 

32

32 

32 

29 

30 

27

Secondfoot-days

268.5 

284,3 

251.2

21,750.1

301.8 

238.4 

267.0 

505.6 

1,700 

11,523 

5,972 

1,251 

605

23,167.8

May

21 

19 

26 

34 

38

27 

22 

21 

19 

18

23 

26 

26 

24 

52

54 

47

36 

41 

57

50 

42 

43 

36 

61

88 

116 

136 

152 

170 

175

Maximum

13 

12 

8.6

586

11 

9.8 

9.8 

36 

175 

589 

460 

90 

38

589

June

175 

148 

136 

125 

148

191 

188 

184 

218 

295

380 

505 

520 

505 

455

500 

584 

562 

545 

510

520 

589 

535 

505 

455

445 

430 

410 

385 

375

July

330 

325 

290

335 

320

330 

460 

390 

335 

264

218 

188 

173 

165 

148

138 

134 

128 

144 

138

121 

108 

104 

106 

118

104

88 

73 

77 

64

56

Minimum

6.4 

7.4 

7.2

6.4

8.8 

7.6 

7.6 

8.6 

18 

125 

56 

15 

12

6.4

Aug.

52 

51 

5S 

87 

90

53 

46 

47 

61 

76

61 

56 

55 

50 

44

36 

33 

38 

28 

24

22

21 

21 

21 

20

19 

17

16 

16 

16 

15

Mean

8.66 

9.48 

8.10

59.4

9.74 

8.51 

8.61 

16.9 

54.8 

384 

193 

40.4 

20.2

63.5

Sept.

15 

14 

16 

16 

15

14 

14 

14 

14 

14

14 

16 

15 

14 

14

14 

13

13 

12 

18

26 

27 

29 

30 

32

33 

32 

33 

36 

38

Runoff in 

acre-feet

533 

564 

498

43,140

599 

473 

530 

1,000 

3,370 

22,860 

11,850 

2,480 

1,200

45,960

Peak discharge (base, 450 see.-ft.).- June 17 (9 p.m.) 746 sec.-ft.; June 22 (12:30 a.m.) 716 sec., 

t.; July 7 [3:30 a.m.) 6OO sec .-f t.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice. ^

Note.- No gage-height record Nov. 21 to Dec. 13, Dec 2* to Mar. 25 (stage-discharge relation 

affected by ice during moat of period); discharge computed on basis of 2 discharge measurements, 

weather records, and records for station on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 75

Tenmile Creek at Frisco, Colo.

Location.- Water-stage recorder, lat. 39°34'30", long. 106°06'35", in sec. 34, T. 5 S., 

 K. Vb W., 100 feet upstream from bridge on U. S. Highway 6, 200 feet (revised) upstream from North Fork and half a mile west of Frisco. Datum of gage is 9,099.32 feet 

above mean sea level, unadjusted.

Drainage area.- 79 square miles.

Records available.- July 1942 to September 1949.

extended above 700 second-feet; minimum daily, 8.1 second-feet Jan. 4, 194E

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Flow partly regulated by Robinson Reservoir (capacity, 2,520 acre-feet). Diversions 

above station for irrigation are of little significance.

Rating tables, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Feb. 28

1.0 13

1.1 22

1.2 32

1.3 44

1.2

1.3 

1.6 

1.8

Mar. 1 to Sept. 30

2.0 185

2.2 280

Z.4 395

Z.8 680

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

33 

28 

27 

26

30

28 

25 

23 

25 

24

26 

23 

21 

20 

21

20

18 

18 

*18 

18

16 

16 

16 

16 

15

15 

15 

16 

16 

15 

16

Nov.

16 

13 

15 

16 

13

14 

15 

15 

15 

14

14

15 

15 

15 

15

15 

*15 

14 

14 

13

14 

15 

15 

15 

14

14 

14

14 

12 

13

Dec.

14 

13

13 

13 

13

13

13 

13 

13 

12

13 

14

13 

*13 

12

12 

13 

13 

13 

12

12

12 

13 

13

11

12

13 

13 

12

12 

13

Jan.

14 

14

13 

12 

12

11 

12 

12

13 

13

13

13 

12

12 

12

*12 

H 

12 

12 

12

12

13 

14 

13

13

13

12 

12 

11 

11 

11

Feb.

12 

13 

12 

12 

12

12 

12 

12 

12

12

12 

13 

13 

13

12

12 

*12 

11 

11 

11

12 

12 

12 

12

11

11 

11 

10

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .. ~. ...................

Mar.

10 

10 

10 

10 

10

11 11 1111 11

11 11

10 

10 

10

10 

10

11 11 

11

11 

11 11

11 11

*11

11

1011 11 

11

Apr.

11 

11

11 

10 

12

13 

14

16 

16 

15

14

16 

19 

18 

16

17 

17 

19 

*20 

29

36 

40 

45 

55 

70

83 

90 

98

126 

123

Secondfoot-days

644

431 

394

38,519

382 

332 

330 

1,080 

7,225 

16,788 

8,732 

2,025 

1,150

39,513

May

96 

98 

147 

174

168

129

108 

98 

96

126

144

144 

150 

168 

240

230 

221 

221 

250 

245

194 

178 

171 

212 

296

402 

434 

509 

565 

537 

474

Maximum

33 

16 

14

904

14 

13 

11 

126 

565 

872 

495 

101 

65

872

June

408 

324 

308 

414 

460

460 

414 

434 

467 

523

586 

720 

744 

704 

664

768 

872 

776 

744 

720

712 

656 

600 

523 

502

488 

488 

467 

434 

408

July

428 

428 

408 

428 

495

467 

474 

454 

460 

440

347 

313 

291 

270 

240

221 

203 

198 

216 

216

178 

160 

144 

168 

240

182 

160 

144 

129 

120 

110

Minimum

15 

12 

11

11

11 

10 

10 

10 

96 

308 

110 

41 

28

10

Aug.

101 

92 

101 

98 

86

83 

81 

79 

83 

88

77 

72 

70 

66 

62

59

62 

65 

56 

52

51 

48 

46 

49 

44

44 

43 

43 

41 

41 

42

Mean

20.8

14.4 

12.7

105

12.3 

11.9 

10.6 

36.0 

233 

560 

282 

65.3 

38.3

108

Sept.

41 

37 

43 

49 

43

40 

36 

34 

34 

36

40 

65 

55 

49 

46

42 

41 

38 

37

33

28 

30 

30 

30 

30

30 

32 

30 

31 

40

Runoff In 

acre -feet

1,280 

855 

781

76,410

758 

659 

655 

2,140 

14,330 

33,300 

17,320 

4,020 

2,280

78,380

Peak discharge (base, 600 see.-ft.).- May 28 (8 p.m.) 704 sec.-ft.; June 13 (1O:30 p.m.) 888 sec.- 

ft.; June 16 (10 p.m.) 1,060 sec.-ft!; July 6 (1 a.m.) 640 sec.-ft.

* Winter diacharge measurement made on this day.

Note'. - No gage-height record Nov. 6 to Apr. 23 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 6 discharge measurements, weather records, and records for nearby stations.
76 TRIBUTARIES ABOVE GUNNISON RIVER

Tenmile Creek at Dillon, Colo.

Location.- Water-stage recorder, lat. 39°36'45", long, 106°03'15", in sec. 18, T. 5 S., 

 H. 77 W., at Dillon, 250 feet downstream from bridge on U. S. Highway 6 and 200 yards 

upstream from mouth. Datum of gage is 8,817.97 feet above mean sea level, unadjusted.

Drainage area.- 113 square miles.

Records available.- October 1910 to September 1919, April 1930 to September 1949.

Average discharge.- 29 years (1910-19, 1929-49), J.23 second-feet.

Extremes.- Maximum discharge during year, 1,130 second-feet June 16 (gage height, 4.41 

reet); minimum daily, 12 second-feet Mar. 27.

1910-19, 1930-49: Maximum discharge, 2,010 second-feet June 1, 1933 (gage height, 

5.82 feet, site and datum then in use), from rating curve extended above 1,000 second-feet; minimum daily, 2 second-feet Feb. 15-17, 20, 1918.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Flow partly regulated by Robinson Reservoir (capacity, 2,520 acrefeet). Diversions above station for irrigation are of little significance.

Rating table, water vear 1948-49, except period of Ice effect

(/cage helsbt, in feet, and discharge, in second-feet) 

(Shifting-control method used May 27 to June 15, July 4-16)

1.8 15 2.2 56 2.9 230 

1.9 22 2.3 74 3.1 305 

2.0 31 2.4 96 3.4 460 

2.1 42 2.7 170 4.2 980

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

45 

39 

35 

34 

38

38 

34 

33 

36 

34

34 

33 

30 

30

31

30 

26 

26 

 26 

25

22 

22 

22 

21 

21

21 

21 

22 

22 

22 

22

Nov.

23 

22 

22 

26 

21

20 

20 

20 

20 

20

20 

21 

22 

21 

20

20 

 20 

19 

18 

19

20 

21 

20 

20 

19

19 

18 

18 

16 

18

Dac.

19 

18 

18 

18 

18

18 

18 

17 

16 

16

17 

19 

18 

17 

 16

16 

17 IT17 

17

16 

16 

16 

18 

15

16 

17 

17 

16 

16 

17

Jan.

18 

18 

17 

-16 

15

15 

15 

16 

17

17

17 

17 

17 

16 

16

16 

 14 

15

16 

16

16 

17 

18 

18 

17

16 

15 

15

14 

14

14

Feb.

15 .

16 

16 

16 

15

15 

15 

15 

15 

15

16 

16 

16

16 

16

15 

15 

 15 

15 

16

16 

16 

16 

16 

15

15

14 

14

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebn 

Hare 

Aprl

Mfiv

June 

July 

Augu 

Sept

wa

lendar year 1948 

ary

h. ......................................

1.... ...................................

Bt....... ...............................

ter year 1948-49 .......................

Mar.

13 

13 

13 

13 

13

14 

14

14 

14 

14

14 

14 

13 

13 

13

13 

13 

13 

14 

14

14 

14 

14 

14 

14

 13 

12 

14 

14 

15 

14

Apr.

IS 

15 

15 

14 

16

17 

18 

20 

20 

18

17 

21 

25 

24 

21

22 

29 

35 

38 

46

52 

58 

70 

92

110

127 

132 

137 

167 

170

Secondf oo t -days

895 

603 

527

45,192

498 

431 

421 

1,561 

8,319 

19,616 

10,255 

2,888 

1,587

47,601

Peak discharge (base, 700 sec.-ft. ).- Hay 28 fll D.m. )

May

137 

130 

181 

214 

214

170 

149 

139 

134 

160

184 

181 

192 

195 

273

269 

258 

251 

277 

293

230 

217 

208 

240 

310

416 

454 

520 

593 

580 

550

Maximum

45 

26 

19

980

18 

16 

15 

170 

593 

973 

562 

147 

92

973

June

460 

380 

360 

478 

520

544 

472 

478 

544 

586

671 

840 

820 

814 

762

875 

973 

910 

840 

840

80S 

775 

723 

684 

612

638 

619 

568 

526 

496

July

490 

532 

508 

532 

556

562 

556 

490 

490 

427

375 

335 

315 

301 

277

262 

254 

240 

258 

258

230 

208 

192 

211 

293,

230 

204 

184 

173 

160 

152

Aug.

144 

137 

147 

142 

127

122 

118 

113 

118 

127

113 

101 

101 

95 

87

81 

89 

92

81 

74

70 

69 

67 

69 

61

60 

60 

58 

56 

56 

56

Minimum Mean

21 28.9 

16 20.1 

15 17.0

15 123

14 16.1 

14 15.4 

12 13.6 

14 52.0 

130 268 

360 654 

152 331 

56 93.2 

40 52.9

12 130

704 sec.-ft.; June 16 (11 p.m.)

Sept.

56 

52 

60 

69 

60

55 

52 

49 

48 

50

55 

92 

78 

69 

61

56 

53 

52 

49 

46

40 

42 

42

41 

41

41 

42 

41 

42 

53

Runoff in 

acre-feet

1,780 

1,200 

1,050

89,630

988 

855 

835 

3,100 

16,500 

38,910 

20,340 

5,730 

3,150

94,440

1,130 sec.-

» Winter discharge measurement made on this day.

Note.- Stage-discharge relation sffected by Ice Nov. 5 to Mar. 31 (no gage-height record Mar. 8-25; 

discharge computed on basis of weather records and records for nearby stations).
TRIBUTARIES ABOVE (JUNNISON RIVER 77

Straight Creek near Dillon, Colo.

Location (revised).- Water-stage recorder, lat. 39°38'55", long. 106°01'05", in NW£ sec. 4, 

T. 5 s., R. 77 w., 1,000 feet upstream from Laskey Creek and 3| miles northeast of 

Billion. Datum of gage is 9,386.17 feet above mean sea level, unadjusted. Prior to 

Sept. 21, 1949, water-stage recorder 150 feet upstream. Datum of gage was 9,392.69 

feet above mean sea level, unadjusted.

Drainage area.- 12.8 square miles.

Records available.- September 1943 to September 1949 (no winter records ^943-46).

Extremes.- Maximum discharge during year, 161 second-feet July 6 (gage height, 2.71 feet, 

site and datum then in use), from rating curve extended above 110 second-feet; minimum 

not determined, occurred during period of no gage-height record.

1943-49: Maximum discharge, that of July 6, 1949; minimum not determined, occurred 

during period of no gage-height record.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

wnich are poor. No diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.8 

6.0 

5.2 

4.9

5.7

6.0 

7.6 

7.4 

6.5 

6.2

6.0 

5.7 

5.4 

5.4 

5.4

5.2 

5.7 

6.5 

5.4 

*5.2

4.9 

5.2 

5.2 

5.2 

4.9

4.7 

5.2 

4.2 

4.9 

5.2 

5.7

Nov.

5.7 

5.4 

4.9 

i>4.5 

4.0

4.5 

4.4 

3.9 

3.9 

4.2

4.3 

4.0 

4.2 

4.5 

4.4

4.2 

3.9 

3.5 

3.3 

3.9

3.7 

4.0 

4.2 

4.1 

4.0

3.8 

3.7 

3.8 

3.9 

4.0

Dec.

3.4

Jan.

> 2.8

Feb.

> 2.5

Month

Oc to 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar.

> 2.4 

C)

Apr.

2.4 

2.4 

2.5 

2.3 

2.3

2.6 

2.7 

2.9 

3.2 

3.0

2.8 

3.3 

3.7 

3.5 

3.3

3.6 

3.8 

4.0 

4.1 

*4.7

6.5 

7.6 

10 

14 

14

15 

14 

16 

17 

9.6

Secondfoot-days

173.5 

124.8 

105.4

5,118.4

86.8 

70.0 

74.4 

186.8 

436.1 

1,771 

1,425 

344.9 

209.2

5,007.9

May

7.8 

7.9 

8.8 

8.8 

8.5

7.6 

7.1 

6.8 

7.1 

7.9

8.8 

9.6 

9.6 

10 

14

14 

13 

13 

14 

14

13 

12 

12 

13 

18

24 

28 

28 

29 

32 

29

Maximum

7.6 

5.7

101

17 

32 

100 

83 

18 

8.2

100

June

22 

18 

18 

20 

22

25 

24 

26 

31 

37

49 

68 

74 

74 

74

92 

93 

93 

100 

98

98 

92 

87 

72 

65

64 

63 

59 

57 

56

July

55 

54 

54 

56

60

72 

83 

76 

71 

69

60 

56 

53 

49 

44

42 

40

38 

38 

37

34 

31 

33 

33 

35

32 

29 

26 

23 

22 

20

Minimum

4.2 

3.3

-

2.3 

6.8 

18 

20 

7.2 

6.4

-

Aug.

18 

17 

16 

16 

16

15 

14 

14 

14 

14

14 

13 

12 

11 

9.8

9.0 

9.0 

9.0 

9.0 

8.8

8.4 

8.2 

8.3 

8.0 

7.8

.8 

.6 

.4 

.2 

.8 

.8

Mean

5.60 

4.16 

3.4

14.0

2.8 

2.5 

2.4 

6.23 

14.1 

59.0 

46.0 

11»1 

'6.97

13.7

Sept.

7.4 

7.4 

7.4 

7.8 

7.4

7.2 

6.8 

6.6 

6.6 

7.0

7.2 

7.2 

7.2 

7.0

6.8

6.4 

6.6 

6.6 

6.6 

6.6

6.4 

6.7 

6.7 

6.7 

6.9

6.9 

6.9 

6.9 

7.1 

8.2

Runoff In 

acre-feet

344 

248 

209

10,160

172 

139 

148 

371 

865 

3,510 

2,830 

684 

415

9,940

discharge (base, 120 see.-ft.).- June 16 (6 p.m.) 125 sec.-ft.; June 21 (6 p.m.) 135 sec.-ft. 

(7 p.m.) 161 sec.-ft.'

Peak 

July

* Winter discharge measurement made on this day.

b ^Stage-dlacharge relation affected by Ice.

Mote.- Mo gage-height record Mov. 5 to Apr. 19; Aug. 17 to Sept. 21 (stage-discharge relation 

affected by Ice during most of first period); discharge computed on basis of discharge maasuremants 

made Mar. 24, Sept. 17, weather records, and records for stations on nearby streams.
78 TRIBUTARIES ABOVE OUNNISON RIVER

Willow Creek near Dillon, Colo.

Location.- Water-stage recorder, lat. 39°39'00", long. 106°04 1 45", in NWij sec. 1, T. 5 

S., R. 78 W., at "bridge on State Highway 9, 700 feet upstream from mouth and 3 miles 

northwest of Dillon. Datum of gage is 8,691.59 feet above mean sea level, unadjusted.

Drainage area.- 13.5 square miles.

Records available.- July 1942 to September 1949.

Extremes.- Maximum discharge during year, 138 second-feet June 17 (gage height, 2.20 feet); 

minimum daily, 0.4 second-foot Oct. 4, 7.

1942-49: Maximum discharge, 162 second-feet June 20, 1947 (gage height, 2.32 feet), 

from rating curve extended above 70 second-feet; minimum daily, 0.4 second-foot July 

29-31, Aug. 1, 6, 1942, Sept. 26, 28, 29, Oct. 4, 7, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Rating tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Apr. 10-18, May 31 to June 8)

Oct. 1 to June 8 June 9 to Sept. 30

0.5

.6

1.7 

3.5

0.9

1.0

1.1

1.2

0.8

1.0

1.1

6.0

10

18

1.3

1.4

1.5

1.6

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.5 

.5 

.4

.6

.5 

.4

.6 

.9 

.8

.8 

.7 

.7 

3.5 

7.2

5.8

6.3 

7.2

*6.6 

6.3

6.1 

5.8 

5.8 

5.8 

5.8

5.6 

5.8 

5.6 

5.3 

6.3 

6.1

Nov.

6.9

6.6 

5.8 

6.3 

b5.8

b5.4 

5.0 

4.2 

4.0 

4.3

4.5 

4.7 

4.8 

4.8 

4.8

4.8 

*4.8 

4.5 

4.1 

4.4

4.5

4.6 

4.6

4.6 

4.6

4.5 

4.3 

4.2 

4.1 

4.1

Dec.

(*) 

4.4

Jan.

> 4.5 

(*)

Feb.

4.5 

(*)

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

WAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

4.0

3.9 

3.8 

3.8 

 3.7 

b3.6

b4.0 

4.9 

4.0 

b4.0 

b4.0 

b4.0

Apr.

b4.0 

4.0 

4.0 

4.0 

4.0

4.4 

4.4

4.0 

3.8

*4.0

4.6 

5.6 

5.1 

5.1 

4.9

6.6 

7.4 

6.6 

8.0 

9.1

9.4

11 

12 

15 

17

19 

20 

20 

24

21

Secondfoot-days

114.9

144.6 

136.4

5,292.7

139.5 

126.0 

123.7 

272.0 

759 

2,095 

1,258 

413.6 

268.2

5,850.9

May

14 

15

22 

26 

22

19 

15 

14 

13 

17

22 

23 

25 

25 

33

31 

27 

25 

27 

27

23 

21 

19

16 

22

29 

33

36 

40 

42

36

Maximum

7.2 

6.9

120

24 

42

123 

79 

22 

12

123

June

20 

19 

32 

42

43

33 

33 

42 

48

59 

88 

96 

98 

91

101 

123 

111 

96 

104

101 

101 

91 

80 

73

73 

80 

69 

63 

59

July

60 

59 

65 

63 

73

73 

79 

73 

65 

55

45 

35 

31 

31 

28

24

26 

26 

28 

28

23 

21 

21 

23 

43

34 

28 

26 

26 

24 

22

Minimum

0.4 

4.0

.4

3.8 

13 

19 

21 

9.1 

7.0

.4

Aug.

19 

19 

22

20 

18

17 

16 

16 

17 

18

16 

15 

15 

13

12

11 

11 

11 

11 

11

10 

9.8 

10 

9.8 

9.5

9.8 

9.5 

9.3 

9.1 

9.5 

9.3

Mean

3.71 

4.82 

4.4

14.5

4.5 

4.5 

3.99 

9.07 

24.5 

69.8 

40.6 

13.3 

8.94

16.0

Sept.

9.5 

10 

11 

11 

9.3

9.1 

8.9 

8.7 

8.7 

8.9

9.1 

12 

10 

10 

9.3

9.1 

8.9 

9.3 

9.3 

9.1

7.8 

7.4 

7.2 

7.0

7.6

7.4 

7.4 

7.4 

7.8 

10

Runoff in 

acre-feet

228 

287 -T- 10,490

277 

250 

245 

540 

1,510 

4,160 

2,500 

820 

532

11,620

Peak discharge (base, 100 sec.-ft.).- June 17 (6:30 p.m.) 138 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 7 to Mar. 23, Apr. 2-9 (stage-discharge relation affected by Ice 

during most of period); discharge computed on basis of 4 discharge measurements, weather records, 

and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 79

Rock Creek near Dillon, Colo.

Location.- Water-stage recorder, lat. 39°43'25", long. 106°07'40", in NE£ sec. 9, T. 4 

3., R. 78 W., at bridge on State Highway 9, a quarter of a mile upstream from mouth 

and 9 miles northwest of Dillon. Datura of gage is 8,473.76 feet above mean sea level, 

unadjusted.

Drainage area.- 15.8 square miles.

Records available.- July 1942 to September 1949.

Extremes.- Maximum discharge during year, 200 second-feet June 17 (gage height, 2.44

feetJ, from rating curve extended above 130 second-feet; minimum daily not determined, 

occurred during period of no gage-height record.

1942-49: Maximum discharge, 236 second-feet June 20, 1947, from rating curve extended above 160 second-feet; maximum gage height, 2.44 feet June 17, 1949; minimum 

daily discharge determined, 2.2 second-feet Apr. 13, 17, 1945, but may have been less 

during periods of no gage-height record.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

A few small diversions above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

15 

13 

12 

10 

13

12 

10 

11 

11 

10

9.3 

8.6 

8.2 

8.2 

8.2

7.9 

7.9 

7.5 

6.8 

6.6

" »6.6 

6.8 

6.3 

6.6 

6.8

6.8 

6.8 

6.1

6.1 

6.3 

7.5

Nov.

7.5 

7.5 

6.1 

6.8 

6.4

6.2 

B.O 

6.0 

1.8 

6 .- 

6.2 

6.0 

5.4 

5.2 

*5.0

5.4

5.8 

5.0 

4.0

4.S

4.5 

5.0 

5.6 

5.8 

5.4

5.4 

5.6 

5.2 

4.8 

4.6

Dec.

(*)

5.0

Jan.

 5.8 

<")

Feb.

 3.8 

(*)

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

1. ......................................

ter year 1948-49 .......................

Mar.

 4.2 

(*)

Apr.

4.0 

4.1 

4.2 

4.3 

4.4

5.0 

6.2 

6.0 

6.2 

*5.8

5.2 

6.4 

6.2 

6.0 

5.8

7.0 

8.0 

8.4 

8.6 

*9.0

9.2 

9.2 

9.4 

9.6 

9.7

15 

16 

20 

32 

32

Secondfoot-days

268.9 

168.8 

155.0

10,215.7

179.8 

106.4 

130.2 

282.9 

1,552 

3,192 

2,395 

773 

358.7

9,562.7

May

27 

24 

36 

42 

3S

30 

23 

21 

20 

27

37 

38 

4Z 

47 

64

63 

58 

52 

56 

54

40 

36 

36 

39 

53

77 

93 

93 

100 

100 

86

Maximum

15 

7.5

203

32

100 

153 

138 

43 

17

153

June

68 

49 

47 

78 

82

83 

63 

68 

86 

93

125 

150 

136

125 

118

129 

150 

153 

140 

138

132 

129 

129 

116 

96

102 

116 

105 

93 

93

July

95 

96 

105 

100 

132

110 

114 

95 

85 

78

72 

63 

BO 

60 

60

56 

63 

63 

75 

75

64 

56 

62 

90 

138

83 

62 

53 

48 

44 

38

Minimum

6.1

4.0

4.0 

20 

47 

38 

15 

9.3

-

Aug.

34 

33 

43 

37 

32.

30 

29 

31 

33 

43

31 

27 

25 

24 

22

22 

22 

-22 

21 

20

18 

17 

18 

19 

19

19 

17 

17 

16 

17 

15

Mean

8. 67 

5. S3 

5.0

27.9

5.8 

3.8 

4.2 

9.43 

50.1 

106 

77.3 

24.9 

12.0

26.2

Sept.

14 

15 

16 

17

14

13 

12 

11 

11 

12

13 

17 

14 

13

12

11 

10 

10 

11 

10

10 

9.7 

9.7 

9.7 

9.3

9.3 

9.7 

9.3 

10 

16

Runoff in 

acre-feet

533 

335 

307

20,260

357 

211 

258 

561 

3,080 

6,330 

4,750 

1,530 

711

18,960

Peak discharge (base, 160 sec.-ft.).- June 11 (11 p.m.) 188 sec.-ft.; June 17 (11:30 p.m.) 200 sec. 

ft.; July 25 (4 a^m.) 198 sec.-ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. 5 to Apr. 24 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 7 discharge measurements, weather records, and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER

Boulder Creek near Dillon, Colo.

Location.- Water-stage recorder, lat. 39°44 I 15", long. 106°08'05", in NW^ sec. 4, T. 4 

S., K. 78 W., at bridge on State Highway 9, 500 feet upstream from mouth and 10 miles 

northwest of Dillon. Datum of gage is 8,456.79 feet above mean sea level,-unadjusted.

Drainage area.- 9.7 square miles.

Records available.- July 1942 to September 1949.

Extremes.- Maximum discharge during year, 136 second-feet June 17 (gage height, 3.19 

reetj; minimum not determined, occurred during period of no gage-height record.

1942-49: Maximum discharge, 255 second-feet June 21, 1943, from rating curve extended above 130 second-feet; maximum gage height, that of June 17, 1949; no flow at 

times.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Small diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.1 

2.6 

2.5 

2.4 

2.6

2.6 

2.4 

2.2 

2.0 

2.0

1.9 

1.8 

1.7 

1.6 

1.6

1.6 

1.3 

1.4 

1.4 

1.4

 1.2 

1.2 

1.2 

1.2 

1.1

1.1 

1.0 

1.1 

1.2 

1.0 

.9

Nov.

0.9

(*) 

.8

Dec.

(*)

0.8

Jan.

0.8 

(*)

Feb.

0.8

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1948 

ary

ter year 1948-49 ...............

Peak discharge (base, 100 sec.-ft.).- June

ft.; July 6 (12 p.m.) 131 seo. "t.; July 25

Mar.

0.8 

(*)

Apr.

0.8 

.8 

.8 

.8 

.8

.8 

.R 

.7 

.7 

.8

.9 

.9 

.8 

.7 

.8

.9 

.9 

1.2 

1.5 

1.8

2.0 

*2.5 

3.4 

4.5 

5.3

6.0 

7.9 

8.6 

15 

14

Secondfoot-days

52.3 

24.1 

24.8

5,078.3

24.8 

22.4 

24.8 

87.4 

783.8 

2,384 

1,650 

377.4 

141.2

5,597.0

17 (11 p.m. 

(3:30 a.m.)

May

9.0 

7.2 

12 

16 

16

13 

8.6 

7.6 

6.8 

8.6

14 

15

19 

18 

27

29 

27 

22 

24 

26

21 

20 

20 

20 

26

46 

56 

56 

65

68 

60

Maximum

3.1

115

15 

68 

125 

106 

20 

6.0

125

June

47 

34 

33 

43 

44

43 

38 

40 

51 

60

71 

117 

113 

105 

103

117 

125 

120 

113 

110

103 

98 

97 

89 

71

84 

93 

81

70 

71

July

76 

71 

84 

77 

101

106 

103 

90 

82 

68

50 

36 

33 

33 

34

31 

34 

35 

46 

44

36 

26 

28 

56 

92

52 

34 

28 

23 

21 

20

Aug.

19

18 

20 

19 

18

17 

17 

17 

17 

20

18 

17 

15 

13 

11

9.3 

9.3 

9.3 

8.2

7.6

7.6 

6.8 

6.8 

7.2 

7.6

7.6 

7.9 

7.2 

6.4 

6.4 

6.2

Minimum Mean

0.9 1.69 

.8 

.8

13.9

.8 

.8 

.8 

.7 2.91 

6.8 25.3 

33 79.5 

20 53.2 

6.2 12.2 

3.6 4:?1

15.3

) 136 sec.-ft.; June 27 (11 p.m.) 

110 sec.-ft.

Sept.

6.0 

5.9 

5.9 

5.9 

5.4

5.2 

4.9 

4.6 

4.6 

4.8

5.3 

6.0 

5.8 

5.6 

5.2

4.8 

4.5 

4.3 

4.0 

4.0

3.8 

3.8 

3.7 

3.6 

3.6

3.8 

3.9 

3.6 

3.8 

4.9

Runoff In 

acre-feet

104 

48 

49

10,070

49 

44 

49 

173 

1,550 

4,730 

3,270 

749 

280

11,100

106 sec.-
TRIBUTARIES ABOVE GUMISON RIVER 81

Slate Creek near Dillon, Colo.

Location.- Water-stage recorder, lat. 39°46'S5", long. 106°09'45", In NE£ sec. 19, T. 3 

S., R. 78 W., a quarter of a mile upstream from State Highway 9, 2,000 feet upstream 

from mouth, and 13 miles northwest of Dillon. Datum of gage is 8,227.70 feet above 

mean sea level, unadjusted.

Drainage area.- 16.8 square miles.

Records available.- July 1942 to September 1949.

Extremes.- Maximum discharge during year, 147 second-feet July 7 (gage height, 2.03 feet); 

minimum daily not determined, occurred during period of no gage-height record.

1942-49: Maximum discharge, 288 second-feet May 22, 1945 (gage height, 2.66 feet), 

from rating curve extended above 130 second-feet: minimum daily, 0.4 second-foot Oct. 

22, 1942.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

whicTi are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.7 

8.2 

7.3 

7.8 

10

8.7 

6.8 

6.2 

6.2 

5.6

5.2 

4.3 

4.3 

4.O 

3.7

3.7 

3.7 

4.O 

3.3 

*3.5

3.3 

2.4 

2.2 

2.2 

2.0

2.2 

1.8 

1.8 

1.8 

2.0 

2.0

Nov.

1.6 

1.5 

1.8 

2.4

(') 

> 2.5

Dec.

(*) 

2.5

Jan.

2.0 

(*)

Feb.

(*) 

 2.0

Month

Octo 

Hove 

Dace

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

 2.0 

(*)

Apr.

2.5 

2.5 

2.5 

2.5 

2.5

2.9 

3.2 

3.3 

3.3 

3.3

3.9 

4.7 

4.6 

4.6 

4.5

6.0 

6.8 

6.6 

8.2 

9.2

8.7 

 11 

15 

19 

19

24 

30 

33 

34 

30

Secondfoot-days

139.9 

72.3 

77.5

6,093.2

62.0 

56.0 

62.0 

311.3 

1,204 

2,401 

1,516 

669.5 

216.0

6,787.5

May

23 

21 

27 

34 

33

28 

42 

19 

16 

18

28 

34 

37 

33 

44

50 

46 

37 

35

41

33 

28 

24 

28 

31

53 

66 

65 

79 

80 

71

Maximum

10

149

34 

80 

124 

110 

56 

12

124

June

59 

47 

38 

54 

58

6O 

53 

53 

74 

74

84 

119 

119 

102 

90

95 

124 

119 

110 

107

97 

93 

92 

84 

65

70 

76 

70 

59 

56

Minimum

July

53 

56 

70 

68 

9O

95 

110 

82 

66 

56

44 

36 

33 

30 

3O

26 

27 

27 

33 

33

28 

21 

23 

59 

93

52 

34 

33 

40 

34 

34

1.8

-

2.5 

16 

38 

21 

8.2 

4.3

-

Aug.

34 

33

41 

34 

31

29 

26 

27 

36 

56

41 

34 

25 

22 

19

17 

IS 

15 

14 

12

12 

11 

10 

10 

10

11 

9.7 

9.2 

8.7 

8.7 

8.2

Mean

4.51 

2.41 

2.5

16.6

2.0 

2.0 

2.0 

10.4 

38.8 

80.0 

48.9 

21.6 

7.20

18.6

Sept.

7.3 

6.8 

7.3 

7. fl 

6.8

6.5 

5.6 

5.2 

5.6 

6.8

9.7 

12 

12 

12 

11

9.7 

8.2 

7.8 

6.8 

6.8

5.9 

5.9 

5.6 

4.9 

4.6

4.3 

4.6 

4.6 

5.2 

8.7

Runoff In 

acre-feet

277 

143 

154

12,090

123 

111 

123 

617 

2,390 

4,760 

3,010

428

13,470

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 5-8. No gage-height record Nov. 9 to Apr. 18 

(stage-discharge relation affected by Ice during most of period); discharge computed on basis of 

5 discharge measurements, weather records, and records for station on nearby streams.
82 TRIBUTARIES ABOVE GUNNISON RIVER 

Black Creek "below Black Lake, near Dillon, Colo.

Location.- Water-stage recorder, lat. 39°48', long. 106°16', In see. 8, T. 33., R. 79 W.,

 three-quarters of a mile downstream from Black Lake and 17 miles northwest of Dillon.

Drainage area.- 15.2 square miles.

Records available.- July 1942 to September 1949 (discontinued).

Extremes.- Maximum discharge during year, 338 second-feet July 25 (gage height, 3.94 feet),

 from rating curve extended above 200 second-feet; minimum daily, 2.0 second-feet Jan. 30 

to Feb. 2.

1942-49: Maximum discharge, 384 second-feet July 1, 1943 (gage height, 4.72 feet), 

from rating curve extended above 260 second-feet; minimum daily, 1.7 second-feet Feb. 

23, 1947.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Bay

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29

30 

31

Oct.

16 

14 

9.2 

9.0 

9.0

9.0 

8.4 

8.4 

8.2 

8.4

8.7 

8.2 

7.0 

6.8 

7.3

6.5 

6.2 

6.0 

6.0 

6.0

6.0 

5.9 

5.9 

5.8 

3.7

3.8 

3.6 

3.9 

4.1 

3.5 

3.5

Nov.

3.5 

3.8 

3.6 

3.8 

3.9

4.1 

3.6 

3.8 

3.9 

4.1

4.1 

4.2 

4.1 

3.9 

4.1

4.1 

3.6 

3.8 

3.8 

3.9

3.9 

3.8 

3.6 

3.8 

3.9

3.9 

3.9 

3.8 

3.6 

3.5

De".

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.5 

3.5 

3.5

3.6 

3.8 

3.6 

3.5 

*3.8

3.8 

3.8 

3.9 

3.8 

3.8

3.9 

4.1 

5.0 

5.6 

5.4

5.2 

5.0 

5.0 

5.0 

5.0 

4.2

Jan.

4.1 

4.1 

3.9 

3.9 

3.5

3.4 

3.4 

3.2 

3.1 

3.1

2.9 

2.8 

2.9 

2.8 

2.8

b2.8 

*b2.9 

b2.7 

b2.7 

2.8

2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.4 

2.0 

2.0

Feb.

2.0

2.0 

2.1 

2.1 

2.1

2.2 

2.4 

2.3 

2.5 

2.7

2.8 

2.8 

2.6 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc

Aprl

MBV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ember. ..................................

ter year 1948-49 .......................

Mar.

2.4 

2.4

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.4 

2.4 

2.4

2.4

2.5 

2.4 

2.5 

2.4

2.5 

2.5 

2.6 

2.6 

*2.5

2.4 

2.2 

2.4 

2.5 

2.5 

Z.5

Apr.

2.5 

2.5 

2.6 

2.6 

2.6

2.6 

2.6 

2.8 

3.1 

3.2

3.4 

3.5 

3.6 

3.8 

4.1

4.2 

4.4

5.2 

6.2 

8.7

12 

10 

11 

19 

33

36 

36 

38 

50 

47

Secondfoot-clays

218.0 

115.4 

125.1

11,469.1

91.8 

66.6 

73.4 

366.2 

1,758 

4,714 

4,392 

1,269 

395.0

13,584.5

May

33 

23 

35 

53 

49

38 

29 

23 

20

27

45 

46 

53 

47 

70

81 

67 

52 

45 

54

40 

34 

28 

34 

51

88 

112 

112 

128 

132 

109

Maximum

16 

4.2 

5.6

216

4.1 

2.8 

2.6 

50 

132 

252 

280 

108 

26

280

June

84 

61 

47 

58 

79

88 

73 

82 

122 

152

180 

220 

211 

180 

180

204

252 

249 

247 

228

211 

213 

195 

166 

126

152 

169 

177 

156 

152

July

148 

158 

206 

220

213

211 

228 

204 

164 

171

136 

116 

112 

112 

114

99 

108 

105 

119 

120

106 

86 

102 

213 

280

144 

93 

79 

73 

68 

64

Minimum

3.5 

3.5 

3.4

2.7

2.0

2.0 

2.2 

2.5 

20 

47 

64 

19 

7.3

2.0

Aug.

63 

60 

71 

62 

54

53 

51 

52 

62 

108

71 

52 

43 

37 

32

29 

28 

29 

27 

24

23 

22 

22 

30 

30

28 

25 

22 

19 

20 

20

Mean

7.03 

3.85 

4.04

31.3

2.96 

2.38 

2.37 

12.2 

56.7 

157 

142 

40.9 

13.2

37.2

Sept.

18 

16 

16 

17

16

14 

13 

12 

12 

14

19 

26 

23 

20 

16

14 

12 

10 

9.8 

9.0

8.4 

8.2 

7.9 

7.6 

7.3

7.6 

7.6 

7.9 

8.7 

17

Runoff In 

acre -feet

432 

229 

248

22,760

182 

132 

146 

726 

3,490 

9,350 

8,710 

2,520 

783

26,950

Peak discharge (base, 160 sec.-ft.).- June 13 (2 a.m.) .254 sec.-ft.; June 17 (2 a.m.) 285 sec.-ft.; 

July 4 (1 a.m.) 266 sec.-ft.; July 25 (6:30 a.m.) 338 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Oct. 20-26, Jan. 29 to Feb. 22; discharge computed on basis of weather 

records, recorded range In stage, and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 83

Black Creek above Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 39 0 51'15", long. 106°15'10", in NE^ sec. 29, T. 2 

S., H. 79 W., at bridge on State Highway 9, 400 feet upstream from high-water line 

of Green Mountain Reservoir and 16 miles southeast of Kremmling.

Drainage area.- 18.2 square miles.

Records available.- May 1944 to September 1949.

Extremes.- Maximum discharge during year, 244 second-feet June 17 (gage height, 2.22 

FeeTTF minimum daily, 1.5 second-feet Nov. 1.

1944-49: Maximum discharge, 266 second-feet June 21, 1947 (gage height, 2.46 

feet); minimum daily, 1.4 second-feet Dec. 15-20, 1944.

Remarks - Records good except those for period of no gage-height record, which are fair. 

Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14 

11 

8.6 

7.4 

6.8

6.6 

6.4 

6.4 

6.4 

6.4

6.6 

6.6 

6.2 

6.1 

6.2

6.1 

6.0 

5.8 

5.6 

*5.6

5.4 

5.8 

5.8 

5.6 

3.3

2.0

1.6 

1.6 

3.3 

2.6 

1.6

Nov.

1.5

1.6 

2.5 

3.7 

3.1

3.0 

3.0 

3.5 

3.8

4.0

4.1 

4.1 

4.1 

4.1 

4.1

*4.2 

3.7 

3.8 

3.8 

3.9

3.9 

3.8 

3.8 

3.9 

4.0

4.0 

3.9 

3.9 

3.7 

3.5

Dec.

3.5 

3.5 

3.5 

3.5 

3.5

3.5 

3.5 

3.6 

3.6 

3.6

 3.8 

3.8 

3.8 

3.7 

3.8

3.9 

3.9 

3.9 

3.9 

3.9

4.0 

4.3 

5.0 

5.6 

5.4

5.4 

5.2 

5.2 

5.2 

5.2 

4.7

Jan.

4.3 

4.2 

4.1 

3.9 

3.7

3.5 

3.5 

3.4 

3.3 

3.2

3.1 

3.0 

3.0 

3.0 

3.0

*3.0 

3.0 

2.8 

2.8 

2.9

2.8 

2.8 

2.8 

2.8 

2.8

2.8 

2.8 

2.3 

2.6 

2.3 

2.1

Feb.

2.1 

2.1 

2.2 

2.2 

2.2

2.3 

2.4 

2.4

2.6 

2.8

*2.9 

2.9 

2.8 

2.6 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2.5 

2.5 

2.5 

2.5

2.5

2.5 

2.5 

2.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 194£ .......................

ter year 1948-49 ........................

Mar.

2.5 

2.5 

2.3 

2.3 

2.3

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

2.3 

2.4 

2.5 

2.5

2.5 

2.6 

2.5 

2.6

2.5

2.6 

2.6 

*2.7 

2.7

2.6

2.5 

2.3 

2.4 

2.6 

2.6 

2.6

Apr.

2.6 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.9 

3.1 

3.3

3.5 

3.6 

3.7 

3.9 

4.2

4.3 

4.6 

5.4 

6.6 

9.0

12 

*12 

12 

18 

31

36 

36 

37 

49 

48

Secondfoot-days

179.4 

108.0 

128.9

11,820.7

96.1 

69.5 

76.3 

367.3 

1,777 

4,211 

3,912 

1,077 

357.5

12,360.0

May

32 

23 

30 

54

50

39 

27 

23 

20 

23

43

47 

58 

47 

72

92 

79 

58 

45 

58

42 

32 

27 

29 

45

82 

110 

110 

128 

134 

118

Maximum

14 

4.2 

5.6

195

4.3 

2.9 

2.7 

49 

134 

215 

202 

102 

24

215

June

86 

58 

36 

47 

71

85

67 

74 

122 

141

157 

189 

188 

161 

155

171

215 

207 

202 

192

185 

183 

173 

160 

125

144

155 

165 

ISO 

147

July

144 

155 

178 

192 

183

183 

188 

178 

163

157

128 

110 

108 

105 

108

89 

100 

98

111 

115

100 

73 

82 

182 

202

141 

93 

72 

54 

62 

58

Minimum

1.6 

1.5 

3.5

1.5

2.1 

2.1 

2.3 

2.6 

20 

36 

54 

16 

6.4

1.5

Aug.

54 

49 

60 

53 

43

42 

40 

40 

50

102

67 

46 

37 

32

26

25 

23 

24

22 

22

19 

18 

18 

24 

26

24 

22 

19 

16 

17 

17

'Mean

5.79 

3.60

4.16

32.3

3.10 

2.48 

2.46 

12.2 

57.3 

140 

126 

34.7 

11.9

33.9

Sept.

16 

15 

14 

16 

15

13 

12

12 

11

12

16 

24 

22 

19 

16

13 

11 

9.1 

7.9 

8.5

7.9 

7.6 

7.3 

7.0 

6.4

6.7 

6.4 

6.4 

7.3 

12

Runoff In 

acre-feet

356 

214 

256

23,440

191 

138 

151 

729 

3,520 

8,350 

7,760 

2,140 

709

24,510

Peak discharge (base. 185 sec.-ft.).- June 13 (4 a.m.) 216 sec.-ft.; June 17 (3 a.m.) 244 sec.-ft. 

July 25 (8 a.m.; 233 sec.-ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. 6 to Apr. 20 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 5 discharge measurements, weather records, and records for station below Black Lake, near Dlllon.
84 TRIBUTARIES ABOVE GUNNISON RIVER

Otter Creek above Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 39°51'10", long. 106°16'00", in JJW^ sec. 29, T. 2 

b., K. 79 W., at State Highway 9, 1,000 feet upstream from high-water line of Green 

Mountain Reservoir and 16 miles soutfieast of Kremmling.

Drainage area.- 9.4 square miles.

Records available.- May 1944 to September 1949.

Extremes.- Maximum discharge during year, 63 second-feet June 17 (gage height,.I.17 feet); 

minimum not determined, occurred during period of no gage-height record.

1944-49: Maximum discharge, that of June~17, 1949; maximum gage height, 2.55 feet 

Apr. 23, 1948; minimum daily discharge, 0.1 second-foot on many days during December 

1944 and January 1945.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z

z

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.0 

1.8 

1.6 

1.4 

1.6

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

 1.6 

1.8

1.8 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6 

1.4

Nov.

1.6 

1.6 

1.6 

1.6 

bl.5

-bl.4 

bl.3 

bl.3 

bl.3 

bl.4

bl.5 

1.6 

1.6 

1.6 

bl.6

 1.6 

1.6 

1.3 

1.1 

1.2

1.2 

1.3 

1.3 

1.3 

1.3

1.3 

1.2 

1.1 

1.0 

.9

Dec.

(*) 

0.8

Jan.

0.8 

(»)

Feb.

(*) 

0.5

Month

Oeto 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 .......................

Mar.

0.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.8

.8. 

*.8 

.8 

1.0 

1.2

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

Apr.

1.0 

1.0 

1.0 

1.0 

bl.4

bl.8 

b2.9 

b2.8 

b3.0 

b2.7

2.0 

2.9 

2.9 

2.0 

2.0

2.9 

4.2 

4.2 

4.2 

4.7

4.7 

 5.2 

5.6 

6.5 

7.9

8.6 

11 

10 

10 

11

Secondfoot-days

51.6 

41.2 

24.8

2,099.4

24.8

uTo]

25.1 

131.1 

538.2 

883 

350.3 

141.2 

60.8

2,286.1

May

6.5 

6.5 

10 

11 

11

9.3 

7.9 

7.2 

6.5 

9.3

16 

17 

17 

20 

21

25 

22 

18 

17 

18

14 

13 

13 

14 

19

25 

31 

34 

35 

33 

31

Maximum

2.0 

1.6

50

1.2 

11 

35 

55 

29 

9.3 

3.4

55

June

26 

21 

18 

25 

28

25 

22 

24 

27 

27

31 

38 

36 

35 

32

37 

55 

52 

46 

36

31 

30 

30 

28 

22

22 

23 

21 

19 

16

July

16 

16 

16 

20 

18

17 

19 

15 

14 

14

13 

11 

9.3 

8.6 

7.9

7.9 

7.2 

7.2 

8.6 

8.6

7.2 

6.5 

6.0 

7.9 

29

8.6 

7.2 

6.8 

6.0 

5.6 

5.2

Minimum

1.4 

.9

-

.7 

1.0 

6.S 

16 

5.2 

2.9 

1.2

-

Aug.

5.0 

4.9 

5.8 

5.4 

5.2

5.0 

5,0 

6.0 

7.2 

9.3

7.2 

6,0 

5.6 

5.2 

4.2

4.2 

4.2 

4.2 

3.8 

3.4

3.4 

2.9 

2.9 

3.4 

3.4

3.4 

2.9 

2.9 

2.9 

3.4 

2.9

Mean

1.66 

1.37 

.8

5.74

.8 

.5 

.81 

4.37 

17.4 

29.4 

11.3 

4.55 

2.03

6.36

Sept.

2.9 

2.4 

2.9 

3.4 

2.9

2.0 

2.0 

2.0 

2.0 

2.4

2.9 

3.4 

2.9 

2.0 

2.0

1.8 

1.6 

1.4

1-4 

1.4

1.4 

1.4 

1.4 

1.2 

1.2

1.4 

1.4 

1.4 

1.4 

2.9

Runoff In 

acre-feet

102 

82 

49

4,160

49 

28 

50 

260 

1,070 

1,750 

695 

280 

121

4,540

Peak discharge (base, 30 sec. -ft.).- May 29 (1:30 a.m.) 38 sec. -ft.: June 4 (9;3tJ p.m.) 41 aeo.-

» Winter discharge measurement made on this day.

b Stage-discharge relation affected by lee.

Note.- No gage-height record Nov. 17 to Mar. 21 (stage-discharge relation affected by lee during 

mostof period), June 8-13, July 17 to Aug. 8; discharge computed on basis of 3 discharge measurements, weather records, recorded range In stage, and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 85

Cataract Creek above Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 39°51'GO", long. 106 C 17'25", In NE^ sec. 25, T. 2 

S., R. 80 W., at Lawson Ranch, 1 mile upstream from high-water line of Green Mountain 

Reservoir and 16 miles southeast of Kremmllng.

Drainage area.- 15.5 square miles.

Records available.- May 1944 to September 1949.

Extremes.- Maximum discharge during year, 250 second-feet June 18 (gage height, 2.08 

reet); minimum dally, 1.0 second-foot Nov. 19.

1944-49: Maximum discharge, 333 second-feet June 8, 1946 (gage height, 2.45 feet); 

minimum dally, 0.2 second-foot on several days during 1944.

Remarks.- Records good except those for periods of Ice effect or no gage-height record, 

whicn are fair. A few small diversions above station for Irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

2 

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Ha

Oct.

3.5 

2.8 

2.2 

3.2

4.5 

3.5 

3.5 

3.5 

4.0

4.2 

3.8 

3.2 

3.2 

3.5

3.2 

3.0 

2.8 

*2.8 

3.5

3.2 

2.2 

1.6 

1.6

1.7 

1.6 

1.7 

2.2 

1.6 

1.2

Nov.

1.7 

1.8

1.8 

1.6

bl.6 

bl.6 

bl.5 

bl.4 

bl.5

bl.6 

bl.4 

bl.4 

bl.3 

bl.2

 1.3 

1,3

1.3 

1.3 

1.2

1.1

1.1 

1.1 

1.1 

1.1 

1.1

Dec.

1.3 

1.2

1.2 

1.2 

1.3 

1.2 

1.3

1.3 

1.8 

1.9 

 1.8 

1.9

1.8 

1.7 

1.7 

1.8

1.8 

1.8 

1.4 

1.2

1.4 

1.5 

1.7 

1.6 

1.5 

1.4

Jan:

1.6 

1.6 

1.6 

1.6

1.7

1.8 

2.0 

2.1 

2.0 

2.0

 1.9 

1.7 

1.8 

1.7

2.0 

1.9 

1.8 

1.8

1.8 

1.8 

1.6 

1.5 

1.6 

1.7

Feb.

1.6

1.8

1.7 

2.1 

1.9 

1.8 

*2.5

2.7 

2.8 

2.3 

1.8 

1.5

1.6 

1.7 

1.7 

1.6

1.3 

1.3 

1.3 

1.3

1.3

1.3 

1.3

Month

lendar year I94f

ter year 1948-49 .......................

Mar.

1.3

1.3

1.3 

1.3 

1.2 

1.2

1.2

1.2 

1.2

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2

ll2 

1.2 

1.8

1.8 

1.8 

2.0 

2.2 

2.0 

2.0

Apr.

2.0 

1.8

2.0

2.0 

2.3 

2.6 

3.0 

2.4

2.6 

3.0 

3.5 

3.5 

b3.4

3.5 

4.4 

4.0 

5.8

*7.7 

9.8 

13 

20

25 

30 

28 

32 

33

Secondfoot-clays

90.9 

40.0 

46.9

7,147.5

54.7 

48.5 

42.8 

267.6 

1,382 

3,810 

2,063 

429.9 

114.1

8,390.4

Peak discharge (base, 180 sec. -ft.).- June 18 (1:30 a.

May

25 

20 

26

37 

37

32 

26 

23 

20 

24

31 

37 

35 

33 

52

56 

52 

40 

37 

37

30 

32 

23 

25 

42

61 

82 

110 

110 

97 

90

Maximum

4.5 

1.8 

1.9

156

2.1 

2.8 

2.2 

33 

110 

£24 

122 

32 

6.4

244

ra. ) 250 sec

June

77 

59 

47 

61 

80

80 

70 

80 

87 

97

110 

149 

162 

160 

151

162 

224 

221 

196 

193

157 

165 

157 

138 

117

122 

130 

130 

114 

114

July

107 

97 

110 

114 

117

107 

102 

102 

97 

90

68 

49 

42 

40 

40

37 

39 

37 

42 

47

40 

32 

31 

59 

122

104 

63 

40 

35 

29 

24

Minimum

1.2 

1.0 

1.1

1.0

1.5 

1.3 

1.1 

1.8 

20 

47 

24 

6.1 

1.8

1.0

-ft.

Aug.

22 

21 

21 

20 

17

18 

16 

15 

21 

32

26 

21 

16 

16 

13

12 

11 

11 

9.4 

8.7

9.0

7.7 

7.0 

8.7 

8.4

8.0 

7.7 

7.4 

6.4 

6.4 

6.1

Mean

2.93 

1.33 

1.51

19.5

1.76 

1.73 

1.38 

8.92 

44.6 

127 

66.5 

13.9 

3.80

23.0

Sept.

5.4 

5.4 

6.4 

6.4

6.1

5.1 

3.7 

3.0 

3.9 

4.8

4.8 

5.4 

5.4 

5.4 

4'. 6

3.9 

3.7 

3.3 

3.0 

2.3

2.3 

1.8 

2.2 

2.0 

1.8

2.0 

1.8 

1.8 

2.3 

4.1

Runoff in 

acre -feet

180 

79 

93

14,190

108 

96 

85 

531 

2,740 

7,560 

4,090 

853 

226

16,640

Vinter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 16 to Mar. 21 (stage-discharge relation affected by ice during 

most of period;; discharge computed on basis of 4 discharge measurements, weather records, and records for stations on nearby streams.
86 TRIBUTARIES ABOVE GUNNISON RIVER

Elliott Creek feeder canal to Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 39°52'10", long. 106°20'00", in SE£ sec. 15, T. 2 

S., K. 80 W., just upstream from high-water line of Green Mountain Reservoir, threequarters of a mile downstream from head gate, and 14 miles southeast of Kremmling.

Records available.- May 1944 to September 1949 (no winter records in 1947).

Extremes.- Maximum discharge during year, 249 second-feet June 18 (gage height, 3.73 

I'eet); no flow Apr. 3-19 and probably at times during winter months.

1944-49: Maximum discharge, that of June 18, 1949; no flow during most of winter 

months.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

whicn are poor. Elliott Creek feeder canal diverts flow of Elliott Creek to Green 

Mountain Reservoir except during extreme high water. No diversion Nov. 17 to Mar. 21, 

Apr. 3-19. Drainage area of Elliott Creek above head gate of canal, 15.4 square miles.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

2.1 

2.2 

2.2

2.1 

2.2 

2.1 

*2.2 

2.1

1.9 

1.9 

1.9 

1.9 

1.8

1.9 

1.8

1.8 

1.8 

1.6 

1.8

Nov.

1.8 

1.8 

1.8 

1.6 

1.8

1.9 

1.8 

bl.8 

bl.8 

1.9

1.9 

1.9 

1.9 

1.8 

1.9

 1.9 

. al.O

Dec.

> aO.2

Jan.

 aO.2

Feb.

> aO.3

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

. aO.6

' *bl.l

bl.l 

1.1 

.8

.7 

.7 

.6 

.6 

.6 

.6

Apr.

0.5 

.3 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

1.5

2.7 

3.3 

4.0 

5.5

6.1

6.4 

7.4 

7.9 

7.9 

7.4

Secondfoot -days

58.9 

43.3 

6.2

4,801.2

6.2 

8.4 

20.5 

60.9 

1,076.1 

3,682 

1,031 

195.2 

71.8

6,260.5

May

6.7 

8.4 

16 

39 

38

38 

36 

35 

33 

33

32 

33 

33 

33 

33

33 

34 

34 

33 

33

27 

12 

12 

12

13

16 

32 

50 

103 

92 

93

Maximum

2.2

1.9

188

1.1 

7.9 

103 

216 

93 

22 

2.9

216

June

75 

52 

41

41 

47

64 

57 

64 

95 

108

120 

166 

170 

169

147

169 

216 

208 

192 

169

155 

168 

160

146 

115

120 

127 

118 

105 

98

July

Minimum

1.6

0

0 

6.7 

41 

10 

2.7 

1.9

0

89 

89 

93 

84 

75

64 

63 

56 

44 

43

32 

27 

22 

21 

19

18 

16 

15 

15 

14

13 

12

12 

12 

13

12 

12

13 

11 

10 

12

Aug.

15

14 

13 

16

12 

7.4 

7.4 

6.7 

5.5

5.2 

4.9 

4.6 

4.6

4.3

3.6 

3.5 

3.3 

2.7 

2.9

3.1 

3.3 

3.6 

3.6 

3.6

3.5 

3.1 

3.3 

3.3 

3.3 

2.9

Mean

1.90 

1.44 

.2

13.1

.2 

.3 

.66 

2.03 

34.7 

123 

33.3 

6.30 

2.39

17.2

Sept.

2.4

2.2 

2.4 

2.2 

1.9

2.1 

2.4 

2.7 

2.9 

2.7

2.6 

2.6 

2.7 

2.6 

2.6

2.6 

2.4 

2.4 

2.4 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.6

2.6

Runoff In 

acre-feet

117 

86 

12

9,530

12 

17 

41 

121 

2,130 

7,300 

2,040 

387 

142

12,400

Winter discharge measurement made on this day. 

a No gage-height record: discharge computed on basis of weather records; flow Is seepage through 

head gate and local drainage along canal, 

b Stage-discharge relation affected by Ice.
TRIBUTARIES ABOVE GUNNISON RIVER 87

Piney River below Piney Lake, near Minturn, Colo.

Location.- Water-stage recorder, lat. 39°42'30", long. 106°25'35", in ¥5- sec. 14, T. 4 

S., H. 81 W., 1? miles upstream from Dickson Creek, if miles downstream from Piney 

Lake, and 8 miles north of Minturn.

Drainage area.- 13.0 square miles.

Records available.- October 1947 to September 1949.

Extremes.- Maximum discharge during year, 291 second-feet June 17 (gage height, 5.23 

feet }; minimum not determined, occurred during period of no gage-height record.

1947-49: Maximum discharge, that of June 17, 1949; minimum not determined, 

occurred during period of no gage-height record.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.8 

5.2 

4.3 

3.4 

3.8

4.5 

5.0 

5.2 

5.7

6.0

5.7 

5.0 

4.3 

4.3 

4.5

4.5 

4.0 

3.8

3.6 

3.6

3.1 

*3.0 

2.8 

2.8 

2.6

2.6 

2.4 

2.6 

2.6 

2.6 

2.6

Nov.

2.4 

2.6 

2.8 

b3.0 

b2.9

b2.8 

3.0 

3.0 

2.7 

2.8

2.9 

2.9 

2.9 

2.9 

2.8

2.7 

2.5 

2.4 

2.6 

2.8

2.8 

2.8 

2.7 

2.7 

2.7

2.6 

2.5 

2.2 

2.2 

2.4

Dec.

> 2.2

Jan.

 1.9

Feb.

> 1.7

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

. 2.0

Apr.

16

Secondfoot-days

122.9 

81.0 

68.2

8,927.8

58.9 

47.6 

62.0 

480 

1,983 

4,400 

2,401 

386.7 

119.6

10,210.9

May

37 

36 

50 

55 

*53

48 

41 

37 

39 

47

54 

57 

59 

57 

72

78 

69 

58 

56 

60

52 

47 

44 

43 

52

94 

112 

108 

122 

138 

108

Maximum

6.8 

3.0

224

138 

234 

158 

38 

6.2

234

June

82 

60 

51 

57 

75

110 

92 

98 

114 

148

179 

208 

186 

156 

156

186 

234 

214 

139 

214

194 

197 

192 

162 

118

146 

152 

158 

134 

128

July

114 

122 

146 

158 

158

132 

140 

122 

100 

84

73 

69 

65 

59 

56

50 

50 

48 

56 

52

45

38 

38 

79 

126

63 

44 

37 

30 

25 

22

Minimum

2.4 

2.2

-

36 

51 

22 

4.9 

2.2

-

Aug.

20 

19 

22 

19 

16

15 

13 

14 

Z4 

38

26 

19 

14 

12 

11

9.6 

9.2 

8.8 

8.0 

6.8

6.0 

5.4 

5.4 

7.2 

6.4

6.0 

5.4 

4.9 

5.2 

5.2 

5.2

Mean

3.96 

'2.2 2.70 

24.4

1.9 

1.7 

2.0 

16 

64.0 

147 

77.5 

12.5 

3.99

28.0

Sept.

5.2

5.0 

5.4 

6.2 

5.6

5.2 

4.8 

4.4 

4.2 

4.2

4.8 

5.6 

5.4 

5.2 

4.4

4.0 

3.8 

3.2 

3.0 

2.8

2.6 

2.6 

2.4 

2.2 

2.2

2.2 

2.2 

2.2 

2.6 

6.0

Runoff In 

acre-feet

244

161 

135

17,710

117 

94 

123 

952 

3,930 

8,730 

4,760 

767 

237

20,250

Peak discharge (base. 150 sec.-ft.).- May 30 (3 a.m.) 160 sec.-ft.; June 12 (3 a.m.) 253 sec.-ft.; 

June 17 (2 a.m.) 291 sec.-ft.; July 4 (l a.m.) 197 sec.-ft.; July 25 (7 a.m.) 175 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 7 to May 4 (stage-discharge relation affected by ice during most 

of period), Sept. 2-15;i discharge computed on basis of weather records, recorded range In stage, and 

records for stations" on nearby streams.

930021 O - 51 - 7
88. TRIBUTARIES ABOVE OUNNISON RIVER 

Piney River near State Bridge, Colo.

Location.- Water-stage recorder, lat. 39°48', long. 106°35', in sec. 16, T. 3 S., R. 82 

w., at Perry Olsen Ranch, just downstream from Rock Creek and 6 miles southeast of 

State Ejridge. Datum of gage is 7,272.35 feet above mean sea level, unadjusted.

Drainage area.- 82.6 square miles.

Records available.- May 1944 to September 1949.

Extremes.- Maximum discharge during year, 562 second-feet June 13 (gage height, 4.95 

 feet); minimum daily, 5.9 second-feet Oct. 25, 27.

1944-49: Maximum discharge, 943 second-feet May 19, 1948 (gage height, 5.29 feet),

from rating curve extended above 740 second-feet; minimum daily, 2.9 second-feet

Sept. 21, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, In second-feet, water yeer October 1948 to September 1919

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

11 

9.6 

9.2 

10

12 

9.6 

10 

12 

12

10 

9.6 

8.4 

8.4 

8.8

 8.4 

7.4 

7.7 

7.7 

7.4

7.1 

6.5 

6.5 

6.2 

5.9

6.2 

5.9 

6.8 

6.8 

7.1 

6.8

Nov.

7.1 

8.0 

16 

16 

19

18 

18 

19 

18 

19

20 

18 

18 

 18 

17

17 

16 

15 

14 

17

16 

17 

18 

18 

18

17 

17 

15 

14

15

Dec.

18 

16 

17 

18 

17

17 

16 

16 

16 

16

17 

 17 

17 

17 

17

17 

17 

17 

17 

17

17 

17 

17 

17 

15

17 

18 

18 

17 

16 

16

Jan.

17 

17 

16 

16 

14

16 

17 

18 

19 

19

19 

 18 

18 

18 

17

16 

16 

17 

17 

18

18 

19 

19 

18 

18

17 

18 

16 

15 

14 

15

Feb.

14 

15 

16 

15 

14

14 

15 

16 

16 

16

15 

«15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1948

ter year 1948-49 .......................

Mar.

15 

15 

15 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

17 

17 

17 

18 

19

20 

19 

18 

18

18

18 

19 

20 

20 

 20 

16

Apr.

15 

14 

14 

14 

16

19 

24 

29 

24 

22

22 

27 

31 

27 

25

29 

37 

46 

51 

62

62 

71 

89 

122 

153

07JQ,

18?;

199 

220 

206

Secondfoot-days

263.0 

493.1 

522

30,606.9

530 

42-1 

531 

2,022 

7,509 

11,917 

4,102 

825 

316.6

29,451.7

May

144 

138 

188 

215 

206

180 

152 

140 

154 

180

19S 

212 

230 

221 

279

282 

251 

218 

221 

237

200 

185 

180 

192

237

324 

385 

405 

445 

465 

445

Maximum

12 

20 

18

726

19 

16 

20 

220 

465 

546 

227 

54 

20

546

June

376 

296 

254 

296 

349

395 

372 

395 

455 

480

515 

535 

546 

520 

490

500 

525 

510 

475 

455

415 

395 

395 

358 

290

293 

282 

276 

244 

230

July

209 

206 

212 

227 

218

206 

209 

192 

180 

168

148 

136 

126 

114 

106

97 

99 

91 

99 

97

84 

70 

63 

118 

175

126 

89 

70 

62 

54 

51

Minimum

5.9 

7.1 

15

5.9

14 

14 

15 

14 

138 

230 

51 

12 

7.8

5.9

Aug.

44 

41 

47 

40 

36

33 

30 

32 

43 

54

46 

34 

30 

28 

24

23 

23 

22 

20 

18

16 

15 

14 

18 

15

15 

13

13 

13 

13 

12

Mean

8.48 

16.4 

16.8

83.6

17.1 

15.0 

17.1 67.4' 

242 

397 

132 

26.6 

10.6

80.7

Sept.

12 

11 

12 

14 

12

11 

9.8 

9.4 

9.4 

11

12 

14 

13 

13 

11

10 

9.4 

9.4 

9.0 

8.6

8.2 

7.8 

7,8 

7.8 

8.2

8.2 

9.0 

8.6 

10 

20

Runoff In 

acre-feet

522 

978 

1,040

60,710

1,050 

835 1,050- 

4,010 

14,890 

23 , 640 

8,140 

1,640 

628

58,420

^feak discharge (base, 520 sec. -ft.).- May 29 (1:30 a.m.) 525 sec. -ft.: June 13 (5:30 D.m. ) 562

sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 5 to Dec. 5. No gage-height record Dec. 4 to 

May 29 (stage-discharge.relation affected by Ice during most of period); discharge computed on basis 

of 3 discharge measurements, weather records, and records for stations on nearby streams.

5 to Dec. 3i. No gage-height record Dec. 4 to
TRIBUTARIES ABOVE GUNNISON RIVER 89

Eagle River at Redcliff, Colo.

Location.- Water-stage recorder, lat. 39 C 30'25", long. 106°22'00", in SW£ sec. 20, T. 6 

S., R. 80 W., at Redcliff, a third of a mile upstream from Turkey Creek. Datum of 

gage is 8,652.02 feet above mean sea level, datum of 1929.

Drainage area.- 72.2 square miles.

Records available.- October 1910 to September 1925, May 1944 to September 1949.

Average discharge.- 20 years (1910-25, 1944-49), 63.5 second-feet,

Extremes.- Maximum discharge during year, 433 second-feet June 12 (gage height, 3.84 

reet); minimum daily, 9.0 second-feet Dec. 26.

1910-25, 1944-49: Maximum discharge observed, 1,010 second-feet June 5, 1912 (gage 

height, 4.0 feet, site and datum then in use), from rating curve extended above 500 

second-feet; minimum daily, 1 second-foot Oct. 15, 1917.

Remarks.- Records good except those for periods of ice effect or no g 

which are fair. Transmountain diversions above station (see p. 2c

ge-height record,

Discharge, In second- feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

18 

15 

14 

15 

18

18 

15 

15 

15 

14

14 

13 

13 

13

13

14 

12 

 11 

11 

11

10 

10 

10 

10 

10

9.6 

9.6 

11 

11 

11 

11

Nov.

11 

11 

11 

11 

b!3

b!2 

12 

b!3 

b!3 

b!2

14 

14 

14 

b!4 

 b!5

13 

13 

b!3 

b!3 

b!3

b!4 

b!4 

b!4 

b!4

14

14 

12 

b!2 

b!2 

b!3

Dec.

b!4 

16 

15 

14 

14

12 

12 

11 

12 

12

12 

12 

 12 

15 

14

b!3

14 

13 

15 

14

14 

14 

12 

bll 

a9.5

a9.0 

alO 

a!2 

a!2 

all 

alO

Jan.

all 

a 12 

a!2 

all 

a 10

all 

all 

all 

a!2 

a!2

all 

all 

all 

all 

 bll

blO 

blO 

blO 

blO 

bll

bll 

bll 

bll 

bll 

bll

bll 

bll 

blO 

blO 

a 10 

alO

Feb.

all 

all 

all 

all 

all

alO

alO 

alO 

alO 

all

all 

all 

all 

all 

all

 bll 

bll 

bll 

bll 

bll

b!2 

b!2 

b!2 

b!2 

b!2

b!2 

b!2 

b!2

Month

Octo 

Hove 

Dece

Ca

jami 

Febr 

Marc 

Aprl 

May.

June 

Julj 

Augu 

Sept

Ha

lendar year i94£ 

lary

ter year 1948-49 .......................

Mar.

b!3 

b!3 

b!3 

b!3 

b!3

b!3 

b!3 

a!2 

a!2 

al2

a!2 

a!2 

a!2 

a!3 

al4

a 15 

al6 

a!8 

a!7 

a!7

a 18 

a 18 

a!7 

a!6 

a!5

a!5 

a!6 

a 16 

 17 

18 

18

Apr.

19 

19 

19 

20 

21

24 

30 

30 

26 

23

24 

29 

30 

25 

24

25 

28 

31 

36 

37

36 

37 

42 

62 

72

76 

76 

78 

98 

100

Secondfoot-days

395.2 

388 

390.5

21,811.6

336 

312 

457 

1,197 

4,096 

6,822 

2,190 

826 

615

18,024.7

Peak discharge (base, 280 sec. -ft. ).- May 28 (10 p.m.)

May

81 

88 

108 

115 

110

102 

95 

86 

76 

83

95 

98 

105 

105 

120

135 

132 

132 

135

138

132 

128 

120 

128 

140

174 

190 

229 

254 

236 

226

Maximum

18 

15 

16

557

12 

12 

18 

100 

254 

362 

102 

37 

42

362

June

208 

187 

174 

208 

215

212 

212 

226 

254 

262

290 

354 

362 

346 

334

322 

318 

298 

262 

240

222 

201 

180 

171 

150

142 

142 

122 

108 

100

July

95 

95 

88 

83 

98

95 

95 

93 

102 

88

83 

78 

74 

74 

68

66 

64 

60 

64 

62

58 

53 

52 

62 

70

60 

50 

44 

41 

38 

37

Aug.

Minimum Mean

9.6 12.7 

11 12.9 

9.0 12.6

8.4 59.6

10 10.8 

10 11.1 

12 14.7 

19 39.9 

76 132 

100 227 

37 70.6 

19 26.6 

17 20.5

9.0 49.4

306 sec. -ft.; June 12 (8:30 p.m.

36 

33 

36 

33 

32

33 

33 

33 

37 

36

30 

28 

28 

26 

25

24 

26 

28 

24 

23

23 

22 

21 

20 

20

20 

19 

19 

19 

19 

20

Sept.

20 

20 

22 

24 

20

19 

18 

18

18 

19

21 

42 

29 

25 

22

20 

20 

19

18 

18

18

17 

17 

17 

17

17 

17 

17 

19 

27

a£e"ee?

784 

770 

775

43,270

666 

619 

906 

2,370 

8,120 

13,530 

4,340 

1,640 

1,220

35,740

} 433 sec.-

.ft.

' Winter discharge measurement made on this day. 

a "No gage-height record; discharge computed on basis of records for nearby stations, 

b Stage-discharge relation affected hy Ice.
90 TRIBUTARIES ABOVE GUNNISON RIVER

Eagle River below Gypsumi Colo,

Location.- Water-stage recorder, lat. 39°39', long. 106°57', in NW^ sec. 5, T. 5 S., R. 

bb W. , at bridge on U. S. Highways 6 and 24 at Gypsum, 150 feet downstream from Gypsum Creek.

Drainage area.- 957 square miles.

Records available.- October 1946 to September 1949; February 1907 to December 1909 at 

site above oypsum Creek, 800 feet upstream, published as Eagle River at Gypsum (excludes flow of Gypsum Creek).

Extremes.- Maximum discharge during year, 4,530 second-feet June 18 (gage height, 7.77 

reet); minimum daily, 140 second-feet Dec. 25.

1907-9, 1946-49: Maximum discharge observed, 5,720 second-feet June 20, 1909 

(gage height, 7.72 feet, sljte and datum then in use), discharge measurement; minimum 

daily, 60 second-feet Dec. 19, 1907, but may have been less during periods of ice 

effect.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Transmountain diversions above station, see page 26. Records of chemical analyses 

and water temperatures for the water year 1949 are given in Water-Supply Paper 1163.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

£19 

216 

205 

205 

219

234 

228 

231 

237 

240

243 

240 

237 

234 

237

243 

246 

252 

258 

255

246 

243 

234 

231 

228

219 

222 

222 

210 

207 

210

Nov.

210 

207 

216 

222 

207

201 

219 

216 

204 

219

228 

216 

216 

216 

213

222 

219 

204 

182 

213

219 

210 

216 

210 

204

201 

198 

152 

170 

190

Dec.

204 

190 

192 

198 

188

192 

a 188 

a!92 

a!90 

S200

S210 

a215 

222 

210 

216

198 

219 

216 

213 

222

216 

210 

213 

192 

140

142 

175 

222 

204 

178 

178

Jan.

213 

207 

175 

162 

162

170 

175 

190 

213 

225

210 

204 

210 

204 

201

182 

a!70 

a!85 

alSO 

a200

a200 

207 

204 

204 

201

192 

185 

187 

180 

a!70 

a!85

Feb.

190 

207 

213 

210 

204

alSO 

a200 

a!90 

3205 

219

213 

213 

207 

201 

195

201 

195 

198 

195

192

198 

192 

204 

204 

198

207 

204 

207

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

216 

210 

210 

216 

216

216 

222 

216 

204 

204

201 

204 

198 

195 

204

222 

231 

222 

219 

228

231 

219 

216 

207 

198

192 

195 

210 

204 

201 

195

Apr.

195 

207 

201 

195 

195

204 

225 

255 

262 

249

234

246 

280 

272 

252

249 

269 

318 

339 

388

430 

425 

465 

602 

765

807 

870 

828 

889 

1,040

Secondfoot -days

7,151 

6,220 

6,145

233,120

5,953 

5,642 

6,522 

12,156 

37,696 

84,880 

40,757 

10,958 

7,910

231,990

May

828 

709 

884 

1,110

1,100

940 

786 

709 

634 

688

870 

933 

996 

968 

1,290

1,430 

1,310 

1,190 

1,170 

1,340

1,160 

1,030 

926 

905 

1,030

1,500 

1,900 

2,000 

2,570 

2,470 

2,320

Maximum

258 

228 

222

4,460

225 

219 

231 

1,040 

2,570 

4,260 

2,150 

569 

393

4,260

June

2,010 

1,630 

1,380 

1,520 

1,800

2,100 

2,010 

1,940 

2,330 

2,550

2,960 

3,510 

3,900 

3,680 

3,420

3,550 

4,160 

4,260 

3,870 

3,800

3,630 

3,480 

3,330 

3,280 

2,610

2,630 

2,590 

2,540 

2,270 

2,140

July

2,110 

2,100 

2,080 

2,060 

2,150

2,140 

1,940 

1,880 

1,710 

1,610

1,450 

1,300 

1,160 

1,110 

1,040

947 

912 

912 

919

961

926 

786 

709 

1,010 

1,600

1,310 

1,030 

842 

744 

688 

621

Minimum

205 

152 

140

132

162 

180 

192 

195 

634 

1,380 

621 

228 

222

140

Aug.

569 

512 

506 

518 

460

450 

455 

430 

460 

488

445 

406 

384 

362 

334

318 

306 

306 

298 

280

262 

255 

249 

258 

246

240 

237 

231 

231 

228 

234

Mean

231 

207 

198

637

192 

202 

210 

405 

1,216 

2,829 

1,315 

353 

264

636

Sept.

231 

231 

231 

234 

237

234 

228 

222 

222 

228

240 

310 

393 

366 

344

326 

306 

298 

283 

269

262 

255 

246 

246 

246

240 

231 

231 

237 

283

Runoff in 

acre-feet

14,180 

12,340 

12,190

462,400

11,810 

11,190 

12,940 

24,110 

74,770 

168,400 

80,840 

21,730 

15,690

460,200

Peak discharge (base, 3,500 sec. -ft.).- June 13 (9 a.m.) 4,220 sec. -ft.; June 18 (8:45 a.m.) 4,530

sec.-ft.

a No gage-height record; discharge computed on basis of weather records, recorded range in stage, 

and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON KIVER 91

Turkey Creek at Redcliff, Colo.

Location.- Water-stage recorder, lat. 39°30'50", long. 106°22'05", in sec. 19, T. 6 S., 

 H. bO W., at Redcliff, 1,000 feet upstream from mouth. Datum of gage is 8,641.79 

feet above mean sea level, datum of 1929.

Drainage area.- 28.6 square miles.

Records available.- June 1913 to September 1921, May 1944 to September 1949.

Average discharge.- 13 years, 31.9 second-feet.

Extremes.- Maximum discharge during year, 339 second-feet June 13 (gage height, 4.56 

feet), from rating curve extended above 250 second-feet; minimum daily, 1.4 secondfeet Jan. 29 to Feb. 3, Feb. 6, 13-17, 21.

1913-21, 1944-49: Maximum discharge observed, 670 second-feet June 13, 1918 (gage 

height, 4.7 feet, datum bhen in use); minimum discharge, 1 second-foot Oct. 21, 1919 

(gage height, 1.34 feet, datum then in use).

Remarks- Records good except those above 150 second-feet and those for period of no 

gage height record, which are fair. A few small diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

6.7 

5.8 

5.3 

5.3 

6.7

6.1 

5.6 

5.8 

5.8 

5.8

5.6 

5.3 

5.0 

4.8 

4.8

4.8 

4.5 

4.5 

4.8 

4.1

3.6 

3.3 

3.4 

3.1 

3.1

3.1 

3.0 

3.4 

3.3 

3.2 

3.1

Nov.

3.0 

3.1 

3.8 

3.1 

3.3

3.8 

3.6 

3.2 

3.2 

3.2

3.3 

3.2 

3.2 

3.0 

3.0

3.0 

3.1 

3.0 

2.8 

3.1

3.0 

2.3 

3.1 

3.1 

3.0

2.8 

2.8 

2.6 

2.8 

2.6

Dec.

2.8 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.9 

2.8 

2.8

2.9 

3.2 

3.0 

2.8 

2.8

2.5 

2.6 

2.6 

2.6 

2.5

2.5 

2.5 

2.4 

2.1 

2.3

2.4 

2.3 

2.3 

2.2 

2.1 

2.1

Jan.

2.1 

2.1 

2.0 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8

1.7

1.6 

1.6 

1.6 

1.7 

1.7

1.7 

1.8 

1.7 

1.7 

1.6

r.e

1.6 

1.5 

1.4 

1.4 

1.4

Feb.

1.4

1.4 

1.4 

1.5 

1.5

1.4 

1.5 

1.6 

1.6 

1.6

1.6 

1.5 

1.4

1.4

1.4 

1.4 

1.5 

1.6 

1.6

1.4 

1.6 

1.7 

1.6 

1.6

1.5

1.6 

1.6,

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

1............ ...........................

ter year 1948-49 .......................

Mar.

1.6 

1.6 

1.9 

2.0 

2.0

2.0 

2.1 

2.0 

1.9 

1.8

1.8 

1.8 i.a

1.8

2.0 

2.1 

2.1 

2.3 

2.8

2.5 

2.5

2.1 

2.0 

1.8

1.8 

1.8 

1.8 

1.7 

1.7 

1.7

Apr.

1.8 

1.8 

1.6 

1.7 

2.1

2.6 

3.9 

4.0 

3.3 

3.1

3.1 

4.2 

4.6

4.2

4.6 

6.1 

7.7 

8.5 

12

11 

12 

17 

25 

32

32 

31 

35 

44 

43

Secondfoot-days

142.7 

92.7 

79.6

11,808.3

53.3 

42.3 

60.2 

367.1 

1,948 

4,899 

1,525 

497 

255.6

9,962.5

May

34 

31 

41 

52 

51

44 

36 

30 

27 

33

42 

43 

49 

54 

66

75 

74 

72 

72 

78

74 

62 

55 

56 

65

83 

95 

106 

110 

118 

120

Maximum

6.7 

3.8 

3.2

261

2.1

1.7 

2.8 

44 

120 

259 

90 

26 

12

259

June

110 

99 

88 

97 

95

108 

110 

115 

128 

156

190 

224 

255 

259 

224

259 

259 

235 

221 

196

200 

190 

186 

168 

144

130 

128 

118 

108 

99

July

90 

85 

80 

74 

77

69 

68 

62 

59 

58

55 

54 

50 

48 

44

43 

41 

40 

41 

38

35 

33 

36 

36 

36

33 

31 

30 

28 

26 

25

Minimum

3.0 

2.6 

2.1

1.1

1.4 

1.4 

1.6 

1.6 

27 

88 

25 

10 

6.2

1,4

Aug.

25 

25 

26 

23 

21

21 

20 

21 

21 

20

18 

17 

16 

15 

15

15 

15 

14 

14 

12

12 

12 

13 

12 

12

12 

10 

10 

10 

10 

10

Mean

4.60 

3.09 

2.57

32.3

1.72 

1.51 

1.94 

12.2 

62.8 

163 

49.2 

16.0 

8.52

27.3

Sept.

10 

10 

10 

10 

9.5

9.5 

9.0 

9.0 

9.0 

9.0

11 

12 

9.5 

9.0 

8.5

8.5 

8.0 

8.0 

8.0 

8.0

7.4 

7.4 

7.1 

7.1 

6.8

6.8 

6.8 

6.2 

6.5 

8.0

Runoff In 

acre -feet

283 

184 

158

23,420

7K>6 

84 

119 

728 

3,860 

9,720 

3,020 

986 

507

19,760

Peak discharge (base, 250 sec.-ft.).- June 13 (7 p.m.) 339 see.-ft. 

Note.- No gage-height record Jan. 19 to Feb. 15; discharge computed on basis of weather records and 

records for stations on nearby streams.
92 TRIBUTARIES ABOVE GUNNISON RIVER

Homestake Creek at Gold Park, Colo.

Location.- Water-stage recorder, lat. 39°24', long. 106°26', in SW£ sec. 27, T. 7 S., R. 

bl W.. at Gold Park, half a mile downstream from confluence of East and West Fbrks 

and 7f miles southwest of Pando.

Drainage area.- 35.7 square miles.

Records available.- October 1947 to September 1949.

Extremes.- Maximum discharge during year, 910 second-feet June 16 {gage height, 6.10 

reetJ, from rating curve extended above 460 second-feet; minimum not determined, 

occurred during period of no gage-height record.

1947-49: Maximum discharge, that of June 16, 1949; minimum not determined, occurred during period of no gage-height record.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

whicn are poor. No diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.4 

7.2 

6.3 

5.8 

8.1

9.0 

9.8 

9.4 

9.8 

9.8

9.4 

8.4 

8.1 

8.1 

8.7

7.8 

7.5 

*6.9 

5.6 

5.2

4.8 

4.8 

4.8 

4.8 

5.2

5.0 

5.4 

4.2 

4.6 

6.0 

6.3

Nov.

7.5 

6.0 

5.2 

b6.0 

7.2

6.6 

7.2 

6.8 

6.6

7.0

7.2 

7.2 

7.0 

6.8 

*7.0

7.0 

6.8 

6.0 

5.4 

5.6

5.2 

4.8 

5.2 

5.0 

4.7

4.6 

4.2 

3.6 

3.4 

3.6

Dec.

' 3.2

Jan.

, 2.6

Feb.

> 2.4

Month

Goto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 ...............

Mar.

. 3.0

Apr.

3.0 

3.0 

3.0 

3.0 

3.0

5. JO 

8.5 

9.5 

7.5 

8.0

8.5 

»b9.0 

blO 

bll

b9.0

bll 

b!2 

b!6 

b!9 

b22

24 

28 

39 

52 

80

82 

93 

103 

120 

112

Secondfoot -day s

215. 2 

176.4 

99.2

23,284.4

80.6 

67.2 

9340 

914.0 

4,840 

11,745 

6,627 

937 

574.4

26,369.0

May

86 

77 

129 

154 

127

*89 

68 

58 

56 

87

119 

109 

127 

145 

205

169 

134 

120 

134 

146

110 

92 

84 

104 

156

252 

281 

366 

448 

338 

270

Maximum

9.8

7.5

658

120 

448 

672 

419 

71 

66

672

June

202 

155 

129 

165 

215

265 

250 

252 

335 

370

452 

588 

636 

492 

448

560 

672 

645 

552 

524

508 

484 

480 

405 

317

338 

370 

335 

308 

. 293

July

317 

317 

338 

305 

419

346 

342 

323 

272 

248

215 

191 

178 

182 

162

147 

140 

139 

165

178

149 

123 

122 

248 

305

215 

151 

120 

104 

88 

78

Minimum

4.2 

3.4

-

3.0 

56 

129 

78 

10 

9.0

-

Aug.

Mean

6.94 

5.88 

3.2

63.6

2.6 

2.4 

3.0 

30.5 

156 

392 

214 

30.2 

19.1

72.2

71 

63 

66 

59 

52

51 

46 

47 

48 

46

39 

33 

29 

25 

23

21 

21 

23 

20 

17

IS 

13 

13 

14 

14

13 

11 

11 

10 

10 

13

Sept.

13 

11 

15 

22 

22

19 

11 

9.4 

9.0 

11

20 

66

50 

40 

31

27 

23 

20 

17 

IS

14 

12 

11 

10 

10

11 

11 

10 

12 

22

Runoff In 

acre-feet

427 

350 

197

46,200

160 

133 

184 

1,810 

9,600 

23,300 

13,140 

1,860 

1,140

52,300

Peak discharge (base. 700 see.-ft.).- June 12 (11:30 p.m.) 897 sec.-ft.; June 16 (10 p.m.) 910

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- Ho gSge-helght record Nov. 5 to Apr. 11 (stage-discharge relation affected by Ice during most 

of,period); discharge computed on basis of 1 discharge measurement, weather records, and records for 

nearby stations.
TRIBUTARIES ABOVE OUNNISON RIVER 93

Homestake Creek near Redcliff, Colo.

Location.- Water-stage recorder, lat. 39°29', long. 106°22', in sec. 6, T. 7 S., R. 80 W., 

a miles upstream from mouth and 3 miles south of Redcliff.

Drainage area.- 58.9 square miles.

Records available.- May 1944 to September 1949. October 1910 to September 1918 at sites 

 near mouth, published as Homestake Creek at Redcliff 1911-16, and near Redcliff 1917-18. 

Records practically equivalent.

Average discharge.- 13 years, 97.3 second-feet.

Extremes.- Maximum discharge during year, 820 secoU-foet June 17 (gage height, 3.90 feet), 

rrom rating curve extended above 540 second-feet; minimum daily, 4.0 second-feet Jan. 5, 

16.

1910-18, 1944-49: Maximum discharge observed, 1,300 second-feet June 24, 1918 (gage 

height, 6.2 feet, site and datum then in use); minimum observed, 0.6 second-foot Jafc. 25, 

1915 (discharge measurement).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnicft are fair. No diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

11 

10 

9.1 

10

12 

12 

11 

12 

12

12 

12 

11 

11 

11

11 

9.1 

*9.1 

10 

9.1

8.2 

7.7 

7.7 

7.2 

6.7

7.2 

6.7 

7.7 

7.2 

7.2 

7.7

Nov.

9.1 

9.6 

7.5 

8.2 

9.0

8.0 

8.6 

8.4 

8.2 

8.4

8.8 

8.4 

8.2 

8.2 

*8.2

8.2 

8.0 

8.0 

6.6 

7.0

6.8 

6.6 

6.8 

6.8 

6.6

6.4 

6.4 

5.2 

4.5 

5.0

Dec.

5.6 

5.2 

5.0 

5.2 

5.0

5.0 

5.0 

5.0 

5.2 

5.2

5.2 

5.2 

5.0 

*5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.2

5.2 

5.2 

5.4 

4.8 

4.4

4.8 

5.2 

5.6 

5.2 

5.0 

4.6

Jan.

5.4 

5.2 

4.6 

4.2 

4.0

4.4 

4.8 

5.O 

5.4 

5.4

5.4 

5.2 

4.8 

4.4 

*4.2

4.0 

4.2 

4.6 

4.8 

5.0

5.2 

5.4 

5.4 

5.2 

5.0

4.8 

4.8 

4.6 

4.6 

4.4 

4.8

Feb.

5.0 

5.6 

6.0 

5.6 

5.4

5.2 

5.4 

6.0 

5.8 

6.0

6.4 

6.6 

7.0 

6.8 

6.8

*6.8 

6.6 

6.4 

6.4 

6.4

6.0 

6.2 

6.4 

6.4 

6.2

6.0 

6.4 

6.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

her. ....................................

lender year 194E

ter year 1948-49 .......................

Mar.

6.4 

6.4 

6.6 

6.8 

7.2

7.4 

7.4 

7.6 

7.8 

7.4

7.2 

7.0 

6.6 

6.8 

7.2

7.6 

8.2 

8.4 

9.0 

9.8

9.2 

9.0 

9.0 

8.6 

8.4

8.4 

*8.4 

10 

10 

10 

10

Apr.

10 

10 

10 

10 

10

14 

20 

29 

27 

28

32 

35 

34 

34 

32

33 

35 

44 

50 

58

64 

77 

96 

136 

164

167 

179 

182 

216 

199

Secondfoot-days

297.6 

225.7 

157.4

29,466.2

149.2 

172.2 

249.8 

2,035 

6,588 

13,765 

7,646 

1,188 

728

33,201.9

May

152 

139 

196 

234 

202

155 

123 

111 

98 

131

173 

164 

185 

196 

280

248 

192 

173 

185 

210

158 

136 

123 

139 

196

298 

339 

405 

508 

400 

339

Maximum

12 

9.6 

5.6

686

5.4 

7.0 

10 

216 

SOS 

688 

465 

82 

77

688

June

276 

220 

188 

262 

302

352 

344 

339 

415 

440

508 

624 

682 

585 

508

596 

682 

688 

602 

585

585 

552 

536 

502 

390

415 

440 

410 

375 

362

July

385 

390 

410 

385 

465

425 

395 

390 

326 

306

262 

224 

202 

202 

176.

158 

150 

144 

167 

188

164 

133 

128 

269 

344

248 

170 

136 

114 

100 

90

Minimum

6.7 

4.5 

4.4

4.2

4.0 

5.0 

6.4 

10 

98 

188 

90 

16 

14

4.0

Aug.

82 

73 

73 

70 

61

60 

56 

55 

61 

60

53 

44 

38 

35 

30

27 

27 

30 

26 

24

22 

20 

19 

20 

20

19 

18 

17 

16 

16 

16

Mean

9.60 

7.52 

5.08

80.5

4.81 

6.15 

8.06 

67.8 

213 

459 

247 

38.3 

24.3

91.0

Sept,

20 

17 

17 

27 

23

19 

16 

16 

14 

14

18 

77 

58 

49 

40

33 

27 

24 

22 

20

20 

1.8 

17 

16 

16

16 

16 

16 

17 

25

Runoff In 

acre-feet

590 

448 

312

"ssTIscf

296 

342 

495 

4,040 

13,070 

27,300 

15,170 

2,360 

1,440

65,860

Peak discharge (base, 710 sec. -ft.).- June 13 '3 a.m.) 808 sec. -ft.; June 17 (2 a.m.) 820 aec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 3-28. No gage-height record Nov. 29 to Mar. 

26 (stage-discharge relation affected by Ice during most of period), Mar. 30 to Apr. 11; discharge 

computed on basis of 3 discharge measurements, weather records, and records for stations on nearby 

streams.
94 TRIBUTARIES ABOVE OUNNISON RIVER

Gore Creek at upper station, near Minturn, Colo.

Location - Water-stage recorder, lat. 39°37'35", long. 106°16'40", in NWij- sec. 18, T. 5 S., 

K. yy tf., 100 feet downstream from bridge on D. S. Highway 6, a quarter of a mile upstream from Black Gore Creek, and 8|- miles northeast of Minturn.

Drainage area.- 14.4 square miles.

Records available.- October 1947 to September 1949.

Extremes.- Maximum discharge during year, 326 second-feet June 16 (gage height, 5.71 feet), 

from rating curve extended above 220 second-feet; minimum daily recorded, 2.0 secondfeet Mar. 30, 31.

1947-49: Maximum discharge, that of June 16, 1949; minimum daily recorded, that of 

Mar. 30, 31, 1949.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion or regulation above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7

e

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.2 

7.0 

6.2 

5.8 

6.5

6.5 

6.2 

6.2 

6.8 

6.5

6.2 

5.8 

5.2 

5.0 

5.5

5.0 

4.1 

4.5 

4.5 

4.3

*3.9 

3.9 

3.9 

3.7 

3.4

3.2 

3.2 

3.4 

3.4

3.7 

3.0

Nov.

3.0 

2.8 

3.6 

3.2 

b2.7

b3.2 

3.2 

b3.0 

b2.9 

2.9

3.0 

3.0 

3.0 

3.0 

3.0

*3.0 

3.0 

2.9 

2.7 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

2.9 

2.8 

2.6 

2.7 

2.8

Dec.

(*) 

2.8

Jan.

(*) 

 2.4

Feb.

(*) 

. 2.4

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

> 2.2

*2.2 

2.2

2.0 

2.0

Apr.

2.2 

2.3 

2.3 

2.3 

2.4

3.4 

5.0 

6 2 

5.2 

4.8

5.0 

7.5 

8.5 

6.8 

6.2

7.0 

9.5 

13 

14 

15

14 

14 

18 

29- 

34

33

31 

36 

46 

40

Secondfoot-days

154.7 

88.9 

86.8

10,451.2

74.4 

67.2 

67.8 

423.6 

1,845 

5,214 

2,703 

507.7 

222.4

11,455.5

May

27 

25 

44 

54 

46

32 

26 

23 

23 

33

44 

43 

47 

48 

76

72 

65 

59 

70 

74

49 

38

35 

38 

60

98 

110 

112 

125 

133 

116

Maximum

8.2 

3.6

225

46 

133 

260 

184 

32 

12

260

June

89 

68 

62 

96 

112

117 

90 

86 

111 

151

184 

236 

224 

206 

206

229 

254 

222 

220 

240

260 

256 

233 

204 

184

182 

187 

173 

167

165

July

160 

160 

168 

160 

184

156 

148 

125 

111 

94

82 

74 

69 

68 

60

56 

58 

57 

67 

59

49 

42 

47

73 

108

68 

52 

44 

40 

34 

30

Minimum

3.0 

2.6

-

2.2 

23 

62 

30 

8.5 

4.5

-

Aug.

28 

30 

32 

27 

25

23 

22 

22 

22 

25

20 

18 

18

15 

14

14

14 

13

12 

11

10 

9.8 

9.8 

10 

9.5

9.5 

9.0 

8.8 

8.5 

9.0 

8.8

Mean

4.99 

2.96 

2.8

28.5

2.4 

2.4 

2.19 

14.1 

59.5 

174 

87.2 

16.4 

7.41

31.4

Sept.

8.2 

8.8 

10 

10 

8.8

7.8 

7.2 

6.8 

6.8 

8.0

8.5 

12 

11 

11 

9.0

8.0 

.5 

.0 

.2 

.0

.5 

.2 

.8 

.5 

.5

.8

.0 

.5 

.O 

9.0

Runoff In 

acre-feet

307 

176 

172

20,730

148 

133 

134 

840 

3,660 

10,340 

5,360 

1,010 

441

22,720

Peak discharge (base, 200 see--ft.).- June 12 (8 p.m.) 304 sec.-ft.; June 16 (8 p.m.) 326 sec.-ft. 

June 21 (d p.mT; 322 sec.-ft.; July 5 (9:30 p.m.) 213 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 10 to Mar. 27 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 4 discharge measurements, weather records, and 

records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 95

Gore Creek near Minturn, Colo.

Location.- Water-stage recorder, lat. 39°37'05", long. 106°26'00", in SW^- sec. 14, T. 5 

S., R. 81 W., at private bridge, a quarter of a mile from U. S. Highway 6, 1 mile upstream from mouth, and 2 miles north of Minturn.

Drainage area.- 100 square miles.

Records available.- May 1944 to September 1949.

Extremes.- Maximum discharge during year, 1,120 second-feet June 16 (gage height, 4.41 

I'eet), from rating curve extended above 830 second-feet; minimum daily, 15 second-feet 

Dec. 25.

1944-49: Maximum dtscharge, 1,340 second-feet June 8, 1947 (gage height, 4.75 feet), 

from rating curve extended above 830 second-feet; minimum daily, 11 second-feet Jan. 20, 

1945.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. A few small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

37 

33 

30 

29 

35

35 

32 

32 

34 

34

34 

30 

29 

28 

28

27 

25 

25 

25 

25

*24 

22 

22 

22 

21

21 

21 

22 

23 

24 

23

Nov.

23 

24 

26 

25 

b22

b20 

b22 

b21 

b20 

b20

b22

b21 

b21 

b21 

b21

*b21 

b21 

b2o 

19 

20

21 

21 

21 

21 

20

20 

20

16 

18 

20

Dec.

21 

20 

20 

20 

19

20 

20 

20 

20 

21

22 

*23 

23 

22

21

20

21

21 

21 

21

21 

21 

21 

18 

15

17 

19 

20 

18 

17 

17

Jan.

20 

18

16 

16 

16

16 

17 

18 

19 

21

*20 

20 

20 

19 

18

17 

17 

17 

18 

19

19 

19 

19 

19

19

18 

18 

18 

17 

16 

17

Feb.

18 

19 

20 

20 

19

17 

18 

17 

18 

20

20 

20

19 

19 

18

19 

18 

18 

18 

18

18 

18 

19 

19 

18

18 

18 

19

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 900 sec. -ft.).- June

Mar.

19 

19 

19 

19 

19

19 

20 

19

19 

19

19 

18 

18 

18 

19

20 

21 

20 

20 

20

21 

20 

19 

18 

18

17 

18 *18 

18 

18 

18

Apr.

19 

19 

19 

19 

20

24 

28 

30 

28 

26

30 

33 

43 

38 

32

40 

46 

53 

*60 

74

69 

72 

86 

121 

148

153 

148 

164 

206 

192

Secondfoot-days

852 

628 

620

50,291

561 

520 

587 

2,040 

9,248 

20,668 

9,455 

2,548 

1,117

48,844

11 (12 p.m.

Hay

144 

139 

199 

232 

224

196 

164 

150 

148 

182

220 

228 

240 

244

304

324 

312 

296 

316 

336

276 

248 

232 

248 

312

450 

508 

538 

604 

636 

598

Maximum

37 

26 

23

1,120

21 

20 

21 

206 

636 

961 

561 

134 

49

961

June

490

410 

375 

450 

502

568 

502 

520 

598

701

817 

957 

915 

845 

817

880 

961 

891 

849 

863

842

814 

774 

717 

645

645 

651 

597 

544 

528

July

506 

484 

511 

489 

561

533 

528 

462 

401 

360

315 

281 

258 

241 

221

209 

213 

205 

221 

213

188 

167 

191 

254 

370

245 

202

180 

162 

150 

134

Aug.

124 

124 

134

117 

116

112 

103 

106 

114 

134

111 

101 

92 

86 

77

74 

72 

72 

66 

62

57 

53 

54 

58 

51

50 

48 

46 

45 

45 

44

Minimum Mean

21 27.5 

16 20.9 

15 20.0

15 137

16 18.1 

17 18.6 

17 18.9 

19 68.0 

139 298 

375 689 

134 305 

44 82 . 2 

30 37.2

15 134

1,100 sec. -ft.; June 16 (lo p.m

Sept.

44 

43 

46 

46 

42

39 

37 

37 

36 

39

41 

49 

43 

42 

39

37 

35 

34 

33 

32

32 

31 

31 

30 

30

30 

31 

30 

33 

45

Runoff In 

acre-feet

1,690 

1,250 

1,230

99,760

1,110 

1,030 

1,160 

4,050 

18,340 

40,390 

18,750 

5,050 

2,220

96,870

) 1,120

sec. -ft . 

* Winter discharge measurement made on this day.

stage-discharge relation affected by ice during 

ischarge measurements, weather records, and
96 TRIBUTARIES ABOVE GUNNISON RIVER

Black Gore Creek near Minturn, Colo.

Location.- Water-stage recorder, lat. 39°35'4S", long. 106°15'50", in NWj sec. 29, T. 5 

s., H. 79 W., 300 feet from U. S. Highway 6, three-quarters of a mile upstream from 

Timber Creek, 2f miles upstream from mouth, and $ .miles east of Minturn.

Drainage area.- 11.8 square miles.

Records available.- October 1947 to September 1949.

Extremes.- Maximum discharge during year, 227 second-feet June 11 (gage height, 4.84

reetj, from rating curve extended above 130 second-feet; minimum observed, 1.5 secondfeet Mar. 27 (discharge measurement).

1947-49: Maximum discharge, 300 second-feet May 22, 1948 (gage height, 5.IS feet), 

from rating curve extended above 130 second-feet; minimum observed, that of Mar. 27, 

'1949.

Remarks.- Records good above 20 second-feet and fair below. No diversion or regulation 

aDove station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.2 

2.9 

2.9 

2.7 

3.9

3.4 

3.7 

4.2 

4.2 

3.9

3.7 

3.4 

3.2 

3.2 

3.4

3.4 

2.6 

2.7 

2.7 

2.7

*2.6 

2.7 

2.7 

2.7 

2.5

2.3 

2.3 

2.4 

2.5 

2.5 

2.4

Nov.

2.4

2.6 

2.9 

2.7 

2.5

3.0 

2.9 

2.9 

2.7 

2.7

2.9 

2.9 

2.9 

2.9 

2.9

*2.9 

3.O 

2.7 

2.5 

3.O

3.0 

3.0 

3.O 

3.0 

3.0

3.0 

2.7 

2.5 

2.7 

2.7

Dec.

(*) 

> 2.7

Jan.

(*) 

 2.3

Feb.

(*) 

 2.1

Month

Oeto 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MB v

June 

July 

Augu 

Sept

Wa

 her. ...................................

lendar year 1948

ter year 1948-49 .......................

Mar.

' l.S

1.6 

 1.6 

1.6 

1.6 

1.6 

1.6

Apr.

1.6 

1.8 

l.S 

1.8 

1.8

2.1 

2.5 

3.O 

2.2 

2.0

2.2 

2.7 

3.0 

2.8 

2.6

2.4

3.9 

4.6 

 5.4 

6.1

5.S 

6.1 

9.0 

14 

16

16 

17 

20 

26 

23

Secondfoot-days

93.6 

84.5 

83.7

7,923.4

71.3 

58.8 

54.6 

209.2 

1,761 

3,255 

789 

213.9 

115.8

6,790.4

May

17 

20 

28 

34 

31

24

21 

21 

23 

2S

33 

34 

35 

39 

55

58 

56 

57 

65 

66

53 

47 

46 

57 

84

110 

116 

123 

134 

132 

114

Maximum

4.2 

3.0

250

26

134 

178 

45 

11 

6.6

178

June

1OO 

S6 

83 

105 

120

121 

113 

113 

127 

140

15S 

178 

174 

154 

138

13S 

136 

120 

113 

111

105 

95 

92 

SI 

73

67 

62 

55 

50 

47

July

44

43 

42 

42

45

42 

42 

36 

33 

32

29 

27 

24 

23 

21

19 

IS 

19 

19 

IS

16 

15 

17 

22 

21

17 

15 

13 

12 

12 

11

Mlnlnum

2.3 

2.4

-

1.6 

17 

47 

11 

4.4 

2.7

Aug.

11 

10 

10 

9.S 

9.0

9.0 

S.7 

9.0 

9.0 

S.7

7.S 

7.5 

7.3 

7.0 

6.3

6.1 

6.6 

6.1 

5.6 

5.4

5.4 

5.1 

5.4 

5.4 

5.1

4.9 

4.6 

4.4 

4.4 

4.4 

4.9

Mean

3.02 

2.62 

2.7

21.6

2.3 

2.1 

1.76 

6.97 

56.8 

108 

25.5 

6.90 

3.86

18.6

Sept.

4.6 

4.9 

5.4 

5.1 

4.9

4.4 

4.2 

4.2 

4.4 

4.4

4.9 

6.6 

4.2 

3.7 

3.7

3.4 

3.2 

3.2

3.2 

3.0

2.9 

2.9 

2.7 

2.7 

2.7

2.9

2.7 

2.7 

2.9 

5.1

Runoff in 

acre-feet

186 

168 

166

15,720

141 

117 

108 

415 

3,490 

6,460 

1,560 

424 

230

13,460

Peak discharge (base, ISO see.-ft.).- May 29 (7 p.m.) 162 see.-ft.; June 11 (8 p.m.) 227 sec.-ft. 

* "Inter discharge measurement made on this day.
TRIBUTARIES ABOVE OUMISON RIVER 

Roaring Fork at Aspen, Co_o.

97

Location.- Water-stage recorder, lat. 39"11'20", long. 106°48'55", in sec. 7, T. 10 S.,

"fl. 84 W., at Aspen, three-quarters of a mile upstream from Hunter Creek. Datum of 

gage is 7,884.56 feet above mean sea level, datum of 1929.

prainage_area.- 109 square miles.

Hecjor'a? ayallable.- October 1910 to September 1921 and January 1934 to September 1949 in 

reports of iteblogical Survey. January 1911 to September 1931 and April 1932 to September 1949 in reports of State engineer. Records since May 24, 1935, equivalent to 

earlier records if flow through Twin Lakes tunnel is added to flow past station.

Average discharge.-.86 years (1910-21, 1932-49), 158 Becond'feet, including diversion by 

Twin Lakes" twine 1.

Extremes.- Maximum discharge during year, 1,090 second-feet June 18 (gage height, 4.37 

reetj; minimum daily, 20 second-feet Nov. 08, Dec. 30, 31. Sept. 9.

1910-21, 1932-49: Maximum discharge, 3,170 second-feet June 18, 1917 (gage height, 

7.2 feet, site and datum then in use, from high-water marks), from rating curve extended above 1,800 second-feet; minimum daily prior to construction of Twin Lakes 

tunnel, 15 second-feet July 15, 16, 1934; minimum daily sinefe diversion through Twin 

Lakes tunnel, 3.2 second-feet Aug. 15, 1940,

Remarks.- Records good except those for periods of ice effect, Which are fair. TranSmountain diversion at point 15 miles upstream through Twin Lakes tunnel to Arkansas 

River Basin since May 24, 1935 (see p. 26). Head gate of Salvation ditch, Which diverts water for irrigation of about 2,100 acres, is located & short distance upstream.

Rating tables, water year 1948-49, except periods of ice effect

(gage height, In feet, and discharge, in second-feet) 

(Shifting-control method Used NOV. 2-25, Aug. 1O to Sept. 3)

Oct. 1 to Dec. 31, , t 

Aug. 21 to Sept. 30 Jan. 1 to Aug. 2o

1.3 20 1.8 64 1.2 £2 1.9 84 3.2 440 

1.5 32 2.0 96 1.3 27 2.2 138 3.7 69O 

1.7 51 1.6 40 2.6 225 4.2 990 

1.6 46 3.0 360

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

30 

28 

28 

28 

33

33 

32 

32 

36 

36

35 

36 

37 

36

*37

34 

31 

31 

31 

29

28 

27 

27 

27 

25

25 

25 

28 

26 

27 

26

Nov.

28 

54 

31 

3O 

26

30 

31 

3O 

27 

29

30 

*30 

29 

28 

28

28 

28 

25 

21 

21

23 

25 

27 

24 

25

24 

22 

20 

22 

25

Dec.

3O 

29 

29 

28 

28

28 

29 

30 

32 

*33

33 

32 

31

31 

31

32 

32 

32 

30

31

31 

29 

28 

25 

24

25 

27 

29 

25 

20 

20

Jan.

23 

25 

26 

24 

23

25 

27 

29 

31 

33

34 

33 *32 

31 

26

23 

26 

27 

28 

28

28 

30 

29 

29 

29

28 

29 

28 

25 

22 

23

Feb.

24 

25 

25 

24 

23

25 

26 

25 

25 

27

26 

25 

25 

23 

23

23 

23 

23 

25 

24

24 

25 

24 

24 

25

26 

26 

27

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

ttav

June 

July 

Augu 

Sept

Ha

mber. .............................

lendar year 1948 

ary

1.. .....................................

ter year 1948-49 .......................

Mar.

26 

26 

26 

26 

26

26 

26 

27 

26 

26

27 

27 

26 

24 

26

26 

28 

26 

28 

31

30 

28 

*29 

28 

26

28 

27 

28 

28 

28 

27

Apr.

27 

29 

28 

27 

29

31 

33 

36 

34 

32

31 

35 

41 

36 

34

39 

42 

49 

51 

56

56 

6O 

72 

94 

118

122 

114 

118 

156 

169

May

132 

122 

152 

174

154

127 

113 

104 

95

113

127 

127 

132 

136 

182

174 

160 

160 

169 

182

158 

144 

146 

169 

193

243 

246 

283 

322 

308 

297

Second- Maximum foot -days ""i"""

944 37 

821 54 

894 33

42,545.9 1,320

854 34 

690 27 

837 31 

1,799 169 

5,344 322 

14,140 972 

9,109 625 

1,481 78 

1,225 91

38,138 972

June

2S5 

212 

208 

258 

246

237 

243 

262 

322 

353

380 

432 

520 

555 

555

610 

870 

972 

822 

8O4

756 

7O2 

605 

525 

396

400 

412 

432 

404 

392

Minimum

July

510 

6O5 

580 

620 

625

560 

555 

510 

360 

325

283 

249 

215 

182 

193

246 

237 

228 

283 

294

262 

2OO 

120 

132 

158

125 

100 

95 

9O 

86 

81

Aug.

76 

?4 

75 

7S 

69

75 

76 

78 

78 

66

6O 

54 

49 

48 

45

41 

40 

41 

37 

35

32 

29 

28 

30 

27

26 

24 

24 

23 

24 

22

Sept.

22 

24 

29 

31 

25

24 

22 

21 

20 

26

27 

91 

78 

64 

56

58 

52 

51 

48 

46

44 

43 

39 

38 

38

4O 

40 

39 

40 

49

.^ Runoff in "BBn acre-feet

25 30.5 1,870 

20 27.4 1,630 

2O 28.8 1,77O

5.5 116 84,400

22 27.5 1.69O 

23 24.6 1,37O 

24 27. O 1,660 

27 60.0 3,570 

95 172 1O,6OO 

2O8 471 28,O50 

81 294 18,070 

22 47.8 2,940 

20 40.8 2,430

20 104 75,650

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 9, 

Jan. 29 to Feb. 26. 10, 18-22, Nov. 26 to Jan. 1O, Jan. 15-21,
98 TRIBUTARIES ABOVE GUNNISON RIVER

Roaring Fork at Glenwood Springs, Colo.

Location.- Water-stage recorder, lat. 39°33', long. 107°20', in sec. 9, T. 6 S., R. 89 

W., at Glenwood Springs, 1,500 feet upstream from mouth. Datum of gage is 5,720.73 

feet above mean sea level, adjustment of 1912.

Drainage area.- 1,460 square miles.

Records available.- October 1905 to September 1909, September 1910 to September 1931, and 

October 1933 to September 1949 in reports of Geological Survey. April 1906 to September 1909 and September 1910 to October 1949 in reports of State engineer.

Average discharge.- 43 years (1905-9, 1910-49), 1,466 second-feet.

Extremes.r Maximum discharge during year, 10,400 second-feet June 18 (gage height, 6.72 

feet) ; minimum daily, 280 second-feet Jan. 30.

1905-9, 1910-49: Maximum discharge, 17,600 second-feet June 14, 1918, June 14, 1921; 

maximum gage height, 8.7 feet June 14, 1921, from high-water marks; minimum discharge, 

145 second-feet Jan. 21, 1935 (gage height, 0.65 foot); minimum daily, 179 second-feet 

Jan. 21, 1935.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. Diversions above station for irrigation. Transmountain diversion 

through Twin Lakes and Busk-Ivanhoe tunnels to Arkansas River Basin (see p. 26).

Revisions (water years).- W 918; 1903.

Hating tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 1-6,

Oct. Zi to Nov. 28, Feb. 5 to Apr. 11)

Oct. 1 to Apr. 11 Apr. 12 to Sept. 30

0.8 280 1.3 '570 1.2 470 2.4 1,560 5.0 5,880 

 9 320 1.4 660 1.5 660 3.0 2,340 6.0 8,320 

1-1 430 1.8 930 4.0 3,920 6.5 9,720

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

528 

514 

514 

514 

597

670 

597 

579 

579 

588

588 

606 

606 

615 

642

624 

606 

597 

597 

579

570 

556 

556 

549 

535

514 

507 

514 

528 

514 

521

Nov.

528 

549 

563 

588 

542

514 

563 

556 

521 

556

588 

*549 

542 

542

535

535 

528 

507 

430 

500

493 

465 

486 

486 

486

472 

465 

375 

b350 

b400

Dec.

472 

414 

424 

444 

402

424 

a390 

a420 

3400 

3415

*430 

430 

419 

408 

419

392 

424 

414 

397 

414

414 

402 

430 

424 

320

353 

408 

465 

408 

375 

375

Jan.

437 

437 

370 

336 

296

336 

b360 

b380 

b410 

444

451 

444 

444 

*444 

408

336 

308 

358 

348 

430

414 

472 

472 

437 

392

342 

370 

348 

296 

280 

336

Feb.

304 

326 

386 

375 

342

316 

386 

424 

370 

408

430 

437 

408 

370 

348

364 

342 

342 

348 

348

370 

353 

370 

364 

370

375 

358 

364

Month

Octo 

Move 

Dece

Ca

Janu 

Pebn 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948 49 ...............

Mar.

375 

364 

375 

386 

392

397 

402 

408 

392 

392

386 

397 

397 

392 

392

414 

437 

424 

430 

458

472 

437 

437 

424 

397

402 

397 

424 

414 

419 

397

Apr.

1 

1 

1

1

1 

1 

1 

2 

2

Secondfoot-days

17,604 

15,214 

12,726

531,578

11,936 

10,298 

12,630 

27,237 

69,210 

164,760 

96,490 

25,957 

19,199

483,261

Peak discharge (base, 6,300 sec. -ft.).- June 18 (10 a.

397 

414 

408 

397 

397

437 

507 

597 

597 

556

507 

530 

632 

590 

536

554 

611 

740 

830 

850

980 

010

450 

780

840 

840 

750 

070 

260

May

1,850 

1,620 

2,060 

2,510 

2,280

1,970 

1,660 

1,440 

1,330 

1,470

1,840 

1,880 

1,920 

1,900 

2,480

2,640 

2,340 

2,130 

2,020 

2,230

1,960 

1,760 

1,640 

1,760 

2,030

2,700 

2,990 

3,220 

3,970 

3,900 

3,710

Maximum

670 

588 

472

9,440

472 

437 

472 

2,260 

3,970 

9,660 

5,280 

1,300 

900

9,660

June

3,300 

2,740 

2,440 

2,780 

3,000

3,080 

3,180 

3,420 

4,050 

4,420

5,160 

5,550 

6,440 

6,360 

6,270

6,580 

8,290 

9,660 

8,800 

8,060

7,800 

7,470 

7,010 

6,650 

5,340

5,480 

5,530 

5,640 

5,300 

4,960

July

5,020 

5,280. 

5,020 

5,100 

4,840

4,690 

4,500 

4,370 

3,990 

4,140

3,640 

3,240 

2,990 

2,780 

2,630

2,480 

2,420 

2,370 

2,480 

2,660

2,570 

2,230 

1,970 

2,140 

2,620

2,270 

1,930 

1,730 

1,560 

1,460 

1,370

Minimum

507 

350 

320

320

280 

304 

364 

397 

1,330 

2,440 

1,370 

524 

530

280

m. ) 10,400 sec. -ft.

Aug.

1,300 

1,210 

,210 

,250 

,140

,110 

,100 

,110 

,140 

,100

1,000 

940 

880 

650 

794

732 

716 

724 

692 

653

632 

604 

572 

584 

572

578 

566 

560 

566 

548 

524

Mean

568 

507 

411

1,452

385 

368 

407 

908 

2,233 

5,492 

3,113 

837 

640

1,324

Sept.

530 

536 

554 

597 

604

566 

554 

542 

548 

578

597 

900 

900 

870 

812

776 

740 

732 

708 

676

625 

597 

584 

572 

554

536 

548 

536 

578 

749

Runoff In 

acre-feet

34,920 

30,180 

25,240

1,054,000

23,670 

20,430 

25,050 

54,020 

137,300 

326,800 

191,400 

51,480 

38,080

958,600

* Winter discharge measurement made on this day.

a No gsge-height record; discharge computed on basis of weather records.

b Stage-discharge relation affected by ice.
TRIBUTARIES ABOVE GUNNISON RIVER 99

Fryingpan Creek at Norrie, Colo.

Location.- Water-stage recorder, lat. 39°20', long. 106°40', in NE£ sec. 28, T. 8 S., R. 

83 W., 300 feet south of State Highway 104 at Norrie, 1 mile upstream from North Fork, 

and 2 miles downstream from Chapman Gulch.

Drainage area.- 89.5 square miles.

Records available.- October 1910 to March- 1917, October 1947 to September 1949.

Extremes.- Maximum discharge during year, 1,060 second-feet Jure 16 (gage height, 4.68 

reet), from rating curve extended above 770 second-feet; minimum daily, 13 second-feet 

Dec. 25, Jan. 5, 17.

1910-17, 1947-49: Maximum discharge observed, 1,440 second-feet June 25, 26, 1912 

(gage height, 6.40 feet, site and datum then in use), from rating curve extended above 

730 second-feet; minimum not determined, ocourred during period of no gage-height 

record.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Transmountain diversion above station through Busk-Ivanhoe tunnel (see p. 26).

Revisions.- W 1119: Drainage area.

Rating table, water year 1948-49, except period of ice effect

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used Sept. 8-11)

1.6 26

1.8 37

1.9 45

2.0

2.1

2.2 

2.6

2.9 

3.1 

4.0 

4.4

240

315

720

920

Discharge, In second-feet, water-year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

37 

33 

30 

30 

39

36 

35 

35 

39 

39

37 

35 

31 

32 

*34

32 

30 

29 

30 

29

28 

28 

28 

27 

26

26 

25 

28 

26 27' 

26

Nov.

26 

26 

28 

29 

30

28 

30 

29 

28 

29

*30 

29 

28 

27 

27

26 

26 

25 

23 

25

25 

22 

24 

24 

23

23 

22 

19 

16 

18

Dec.

20 

19 

19 

19 

18

19 

18 

19 

18 

*19

19 

19

18 

18 

18

17 

18 

18 

17 

18

18 

18 

16 

14 

13

14 

16 

15 

14 

14 

14

Jan.

16 

16 

16 

14 

13

14 

15 

16 

17 

17

17 

16 

*16 

16 

16

14 

13 

14 

14 

15

15 

17 

17 

17 

17

16 

17 

15 

14 

15 

16

Feb.

16 

17 

18 

18 

17

17 

17 

18 

19 

20

*20 

20 

19

18 

18

18 

18 

18 

18 

18

19 

19 

19 

19ia

19 

19 

19

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

h....... ................................

ter year 1948-49 .......................

Mar.

19 

19 

19 

19 

19

19 

20 

20 

20 

20

19 

19 

19 

19 

19

19 

19 

19 

20 

21

22 

21 

*20 

20 

19

19 

19 

19 

19 

19 

19

Apr.

19 

19

19 

19 

18

23 

28 

*30 

28 

28

29 

34 

41 

33 

33

35 

48 

63 

67 

73

74 

91 

118 

152 

175

175 

168 

173 

207 

207

Seeondfoot-days

966 

765 

534

48,115

481 

514 

603 

2,227 

8,863 

19,592 

11,669 

2,645 

1,654

50,513

May

150 

150 

210 

250 

250

195 

156 

142 

144 

189

213 

210 

222 

234 

311

295 

250 

254 

279 

295

228 

204 

213 

240 

311

446 

500 

585 

644 

567 

526

Maximum

39 

30 

20

1,120

17 

20 

22 

207 

644 

900 

648 

142 

132

900

June

450 

351 

324 

468 

410

432 

446 

482 

603 

621

698 

765 

835 

795 

785

855 

900 

895 

805 

800

815 

785 

770 

711 

621

644 

680 

644 

608 

594

July

608 

630 

580 

572

648

608 

630 

572 

526 

526

450 

392 

374 

333 

295

268 

272 

268 

268 

295

261 

225 

222 

328 

374

268 

213 

189 

168 

158 

148

Minimum

25

16 

13

-

13 

16 

19 

18 

142 

324 

148 

46 

39

13

Aug.

142 

134 

136 

129 

120

129 

123 

129 

129 

120

105 

93 

87 

79 

76

68 

72 

78 

67 

61

56 

53 

54 

59 

54

51 

50 

48 

47 

46 

50

Mean

31.2 

25.5 

17.2

131

15.5 

18.4 

19.5 

74.2 

286 

653 

376 

85.3 

55.1

138

Sept.

52 

48 

56 

76 

56

51 

45 

46 

47 

53

65 

132 

91 

82 

67

59 

53 

50 

47 

44

43 

41 

40 

39 

39

39 

41 

39 

43 

70

Runoff in 

acre-feet

1,920 

1,520 

1,060

95,440

954 

1,020 

1,200 

4,420 

17,580 

38,860 

23,150 

5,250 

3,280

100,200

Peak discharge (base, 760 see.-ft.).- May 28 (10 a.m.) 830 sec.-ft.; June 16 (10:30 p.m.) 1,060 

sec.-ft.; July 1 (11:30 p.m.) 780 sec.-ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. 4 to Apr. 7 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 5 discharge measurements, weather records, and records for stations on nearby streams.
100 TRIBUTARIES ABOVE GUNNISON RWER

North Fork Fryingpan Creek pear Norrie, Colo.

Location.- Water-stage recorder, lat. 39°21', long.' 106°40', in Ni gee, 81, T, B S,, R, 

83 W., 1,000 feet upstream from bridge on State Highway 104, a quarter of g mile up* 

stream from mouth, half a mile downstream from Lapt Chance Creejc, and 1 mile northwest 

of Norrie.

Drainage area.- 41.2 square miles.

Records available.- October 1910 to March 1917, October 1947 to September 1949,

Extremes.- Maximum discharge during year, 625 second-feet June 12 (gage height, |,7g feet); 

minimum daily recorded, 0.9 second-foot Oct. 4.

1910-17, 1947-49: Maximum discharge, that pf June 12, 1949; nuHtifflum gage height, 

3.80 feet May 21, 1948; minimum daily discharge recorded, that of Qct. 4, 1949.

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

One small diversion above station.

Revisions.- W 1119: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.2 

2.3 

1.0 

.9 

2.2

2.5 

3.0 

3.0 

5.2 

5.0

4.4 

3.7 

3.2 

3.0 

 3.7

3.4 

2.7 

2.3 

2.6 

2.4

2.2 

1.9 

1.8 

1.7 

1.7

1.7 

1.7 

2.2

2.2 

2.3 

2.3

Nov.

1.7 

1.9 

2.2 

1.5

(«) 

. 1.8

Dec.

(«) 

' 2.0

Jan.

(«) 

1.5

Feb.

(«) 

3.0

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Aprl 

Uav

June 

July 

Augu 

Sept

Wa

mbe'r. ...........,.--....--.-....-.-...--

lendar year 1948

ter year 1948-49 ...............

Mar.

> 5.Q 

( )

Apr.

4.8 

5.0 

5.0 

4.8 

5.0

6.5 

9.0 

11 

16 

9.5

#9.6 

16 

24 

26 

26

27

43

49

50 

56 

68 

102 

116

108 

100 

107 

126 

109

Secondfoot-d^yg

80.4 

54.1 

62.0

17,159.9

46.5 

84.0 

155.0 

1,305.6 

4,293 

10,224 

3,395 

551.4 

298.1

20,549.1

May

82 

82 

131 

156 

132

98 

79 

69si

83

109 

101 

100 

104 

146

134 

112 

104 

109 

124

93 

B2 

82 

99 

130

218 

225 

865 

361 

340 

260

.Maxima*

5..E

451

126 

361 

502 

232 

34 

36

502

Jvme

318 

166 isg 

2m

312

361 

32? 

352

sag

403

430 

463 

484 

400 

388

463 

502 

47g 

385 

38B

385 

370 

361 

320 

240

?6g

878

255 

228 

207

July

§04 

186 lie 

leo 

252

182 

ISO 

ISO 

154 

140

in

108 

100 

93 

84

nea

61 

74

79

63 

52 

50 

82 

128

84 

60 

49 

43 

39 

36

MlBlraui!

0,9

.9

4.8 

64 

152 

36 

8.8 

4.4

.9

Aug,

34 

32 

30 

29 

2S

SO 

2.6 

34 

88 

?5

2g 

20 

18 

16 

15

14 

14 

16 

13 

12

U 

11 

11 

18ii

10

9,6 

9,g

a, a 

8,8 

9,6

Mean

2.59 

1,80 

2.0

46,9

l.S 

3.0 

5.0 

43. S 

13» 

341 

110 

17.8 

9,94

56,3

Sept,

9.6

a.a 

n

1411

9.2

a.o

7,8 

7,4 

7.8

10 

36 

23 

17 

13

12 

10 

9,8 

8,? 

7.1

6,5 

§,0 

S.4 

5,0 4. a

4,6 4,a

4.4 

4.8 ii

Runoff tn aere-fMt

159 

107 

123

34,030

98 

167 

507 

2,590 

8,580 

20,280 

6,730 

1,090 

591

40,760

Peak discharge (base. 420 sec . -ft ._) . - Nay 29 (1 a.m.) 457 sec. -ft.; June 18 (10:30 p,w. } 825 aeo.-

ft.; June IB (Z a.a.) 589 sec. -ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. 5 to Apr. 12 (stage-discharge relation affected by lee during 

most of period); discharge computed on basis of 6 discharge measurements, weather records, and records for stations on nearby streams. No gage-height record Aug. 20 to Sept. 10; discharge computed 

on basis of weather records and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 101

Crystal River near Redstone, Colo.

long. 107°13', in SW£ sec. 34, T. 8 S., R. 

miles upstream from Thompson Creek, and

1908-9 at site 2 miles downstream; records

Location.- Water-stage-recorder, lat. 39°19"

88 w. , 300 feet from State Highway 133, l

8 miles downstream from Redstone. 

Drainage area.- 225 square miles. 

Kecorgs available.- May 1935 to September 1949.

not; equivalent. 

Average discharge.- 14 years, 373 second-feet. 

Extremes.- Maximum discharge during year, 3,960 second-feet June 18 (gage height, 8.02

I'eet ) , from rating curve extended above 2,500 second-feet; minimum daily, 44 second-feet

Jan. 29.

1935-49: Maximum discharge, 4,400 second- feet June 21, 1938 (gage height, about 8.5

feet, from floodmark, present site and datum), from rating curve extended above 2,400

second-feet; minimum observed, 32 second-feet Jan. 19, 1943 (discharge measurement). 

Remarks . - Records good except those for periods of ice effect or no gage-height record,

wnich are fair. Diversions above station for irrigation.

Ratine tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Nov. 10-28, Dec. 2-15,

Feb. 15 to Apr. 23, Sept. 9-12)

Oct. 1 to Apr. 22

4.1

4.2 

4.4 

4.6 

4.9

54

76

130

192

310

Apr. 23 to Sept. 30

4.4

4.5

4.6 

4.8 

5.1

90

112

138

205

350

5.7 

6.0 

6.5 

6.9 

7.8

700

940

1,430

1,98O

3,540

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

119 

113 

113 

133 

160

166 

148 

145 

148 

145

'142 

142 

142 

139 

139

133 

124 

122 

122 

119

116 

113 

110 

108 

108

105 

99 

105 

105 

102 

99

NOV.

97 

99 

105 

110 

92

86 

94 

94 

84 

92

99 

*94 

94 

94 

94

94 

94 

86 

67 

94

92 

79 

92 

89 

86

86 

84 

58 

bSS 

b64

Dec.

b74 

81 

97 

89 

79

97 

76 

79 

*76 

76

79 

76 

74 

74 

76

65 

72 

69 

65 

69

69 

67 

84 

58 

51

b60 

t>70 

b78 

b72 

b60 

b60

Jan.

b74 

74 

61 

51 

b50

69 

b72 

b76 

b8o 

b86

b84 

b82 

b82 

*79 

54

61 

b64 

b60 

b70 

b72

b84 

84 

61 

58 

54

51 

54 

51 

44 

48 

69

Feb.

61 

81 

81 

76 

74

61 

b70 

b82 

b78 

*b82

b88 

b86 

b80 

b78 

81

84 

65 

63 

63

65

69 

63 

69 

69 

67

67 

65 

67

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1945

ary t t 1 1

ter year 1948-49 .......................

Mar.

67 

65 

67 

69 

72

74 

76 

76 

72 

72

69 

67 

65 

65 

72

76 

86 

84 

86 

102

102 

99 

97 

*86 

86

86 

90 

102 

102 

100 

96

Apr.

94 

98 

98 

96 

94

105 

120 

160 

160 

140

113 

135 

163 

145 

136

148 

179 

226 

246 

270

254 

298 

372 

438 

449

454 

432 

438 

496 

502

Secondfoot -day s

3,884 

2,648 

2,272

133,299

2,059 

2,035 

2,528 

7,059 

19,433 

52,379 

30,235 

5,028 

2,743

132,303

May

410 

400 

544 

616 

550

484 

416 

366 

361 

466

562 

586 

580 

610 

721

700 

604 

544 

514 

550

490 

405 

444 

514 

676

850 

1,000 

1,070 

1,130 

1,180 

1,090

Maximum

166 

110 

97

2,410

86 

88 

102 

502 

1,180 

3,580 

1,740 

383 

177

3,580

June

922 

721 

634 

676 

810

895 

931 

1,100 

1,200 

1,430

1,740 

1,680 

1,870 

1,850 

1,980

2,190 

2,820 

3,580 

2,930 

2,570

2,430 

2,320 

2,270 

2,06O 

1,740

1,790 

1,840 

1,920 

1,790 

1,69O

July

1,680 

1,740 

1,650 

1,550 

1,430

1,390 

1.4OO 

1,360 

1,380 

1,390

1,170 

1,08O 

1,000 

940 

931

859 

818 

810 

895 

886

646 

640 

592 

616

640

550 

490 

466 

438 

410 

388

Minimum

99 

55 

51

51

44 

61 

65 

94 

361 

634 

388 

96 

56

44

Aug.

383 

361 

340 

285 

241

218 

194 

198 

223 

174

157 

148 

138 

130 

122

120 

120 

122 

115 

110

108 

102 

100 

105 

106

106 

104 

102 

100 

100 

96

Mean

125 

88.3 

73.3

364

66.4 

72.7 

81.5 

235 

627 

1,746 

975 

162 

91.4

362

Sept.

94 

94 

102 

118 

116

100 

88 

86 

85 

88

128 

177 

120 

110 

99

97 

92 

88 

83 

- 76

70 

69 

64 

61 

59

58 

56 

61 

79 

125

Runoff in 

acre-feet

7,700 

5,250 

4,510

264,400

4,080 

4,040 

5,010 

14,000 

38,540 

103,900 

59,970 

9,970 

5,440

262,400

Peak discharge (base, 2,000 see.-ft.).- June 18 (2:3O a.m.) 3,960 sec.-ft.5 June 28 (1 a.m.) 2,280 

See.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Hote.- NO gage-height record Mar. 25 to Apr. 12,.Aug. 16 to Sept. 8; discharge computed on basis of 

1 discharge measurement, weather records, recorded range In stage, and records for stations on nearby 

streams.
102 TRIBUTARIES ABOVE GUNNISON RIVER

Parachute Creek near Grand Valley, Colo.

Location.- Water-stage recorder, lat. 39°34'30", long. 108°06'35", in NE£ sec. 36, T. 5 S. 

E~I96 W., 0.1 mile downstream from confluence of West Pork and East Pork, and 9 miles 

north of Grand Valley.

Drainage area.- 144 square miles.

Records available.- October 1948 to September 1949.

Extremes.- Maximum discharge during year, 318 second-feet May 4 (gage height, 3.62 feet); 

no flow Dec. 2 (field observation).

Remarks.- Records good above 5 second-feet and poor below. Diversions above station for 

irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.8 

1.8 

1.8 

1.8 

2.0

2.5 

3.5 

2.8 

2.5 

2.0

1.7 

1.6 

1.6 

1.6 

1.6

1.4 

1.2 

1.4 

1.5 

1.6

2.2 

1.8 

1.9 

1.9 

1.6

1.5 

1.4 

1.8 

1.4 

1.5 

1.3

Nov.

0.9 

1.2 

*1.5 

1.3 

.7

.5 

.4 

.4 

.3 

.3

.2 

.2 

.2

.2 

.2

.2

.2 

.2 

.1 

.2

.2 

.3 

.3 

.2

.2

.2 

.1 

.1 

.1 

.1

Dec.

(*) 

 0.9

Jan.

(*) 

> 2.9

Feb.

(*) 

> 4.5

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 

ary

1... ....................................

ter year 1948-49 .......................

Mar.

5.0 

*5.5 

6.1 

6.1 

6.1

6.3 

6.3 

6.3 

6.1 

6.3

6.6 

6.6 

6.6 

6.9 

7.3

7.3 

7.3 

7.3 

6.9 

7.6

8.0 

8.0 

7.6 

7.3 

7.3

8.0 

8.3 

8.6 

8.3 

8.0 

8.0

Apr.

9.0 

9.0 

9.3 

6.6 

9.7

10 

13

16 

17 

20

21 

23 

27 

27 

27

34

36 

52 

54 

57

63 

75 

86 

104 

111

118 

118 

131 

190 

181

Secondroot-days

56.0 

11.2 

27.9

-

89.9 

126.0 

217.9 

1,654.6 

5,607 

1,515 

416.4 

280.5 

190.3

10,192.7

May

157 

181 

258 

296 

258

199 

169 

163 

160 

181

205 

240 

233 

240 

244

247 

226 

190 

181

175

166 

154 

143 

143 

138

128 

119 

113 

109 

99 

92

Maximum

3.5 

1.5

-

8.6 

190 

296 

97 

19 

15 

8.2

296

June

97 

92 

87 

87 

73

62 

58 

54 

48 

43

44 

43 

43 

43

41

42 

48 

55 

50 

46

44

42 

40 

40 

38

37 

38 

34 

28 

18

July

18 

13 

9.8 

9.8 

12

14 

16 

18 

19 

19

19 

15

13 

12 

12

12 

13 

12 

11 

11

12 

12 

12 

13 

14

14 

14 

13 

13 

11 

9.8

Minimum

1.2 

.1 

0

-

5.0 

6.6 

92 

18 

9.8 

5.9 

5.1

0

Aug.

9.4 

9.8

10 

11 

10

9.8 

15 

9.4 

9.8 

10

8.2 

7.7 

8.5 

8.5 

8.5

8.5 

8.7 

8.5 

8.5 

8.0

7.7 

7.7 

9.8 

11

10

9.8 

9.0 

8.2 

6.9 

6.7 

5.9

Mean

1.81 

.37 

.9

-

2.9 

4.5 

7.03 

55.2 

181 

50.5 

13.4 

9.05 

6.34

27.9

Sept.

5.1 

5.9 

6.7 

6.4 

5.9

5.6 

5.1 

5.9 

8.2 

8.0

7.4 

7.2 

7.7 

7.4 

6.9

6.4 

6.1 

6.1 

5.9 

5.6

5.6 

5.6 

5.6 

5.6 

5.9

5.6 

5.9 

6.1 

7.7 

7.2

Runoff In 

acre-feet

111 

22

55

-

178 

250 

432 

3,280 

11,120 

3,000 

826 

556 

377

20,210

Peak discharge (base, ISO see.-ft.).- Apr. 29 (1O:30 p.m.) 222 sec.-ft.} May 4 (2 p.m.) 318 se'c.- 

ft.; May 15 (10 a.m.; 269 sec.-ft.

* Winter discharge measurement or observation of no flow made on this day.

Note.- No gage-height record Oct. 1-14, Nov. 27 to Mar.' 1 (stage-discharge relation affected by 

Ice during part of period); discharge computed on basis of 2 discharge measurements, 1 field observation of no flow, weather records, and records for nearby stations.
TRIBUTARIES ABOVE GUNNISON RIVER 103

Parachute Creek at Grand Valley, Colo.

Location.- Water-stage recorder, lat. 39°27'10", long. 108°03'30", in NW£ sec. 12, T. 7 S., 

K. y& W. , at western edge of Grand Valley, half a mile upstream from bridge on U. S. 

Highways 6 and 24 and l£ miles upstream from mouth. Former gage about 25 feet upstream 

at different datum.

Drainage area.- 200 square miles (revised).

Records available.- April 1921 to September 1927, October 1948 to September 1949.

Extremes.- Maximum discharge during year, 422 second-feet July 24 (gage height, 3.66 feet), 

from rating curve extended above 100 second-feet; no flow Jan. 26, 28.

1921-27, 1948-49: Maximum discharge observed, 790 second-feet May 9, 1922 (gage 

height, 3.0 feet, site and datum then in use); no flow for short periods in 1926, 1927, 

1949.

Remarks - Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

8.4 

8.4 

8.5 

9.0

11

15 

17 

13 

11 

9.0

7.8 

7.6 

7.6 

7.8 

7.9

8.5 

8.2 

8.2

7.9 

7.9

7.9 

8.5 

8.2 

8.2 

8.5

8.2 

7.9 

8.2

10 

9.6 

9.6

No/.

7.6 

11 

13 

14 

14

14 

15 

14 

14 

14

15 

14 

14 

12 

14

14 

14 

14 

14 

14

14 

14

14 

14 

13

13 

12

11 

12 

12

Dec.

12 

12 

14 

14 

12

14 

13 

15 

*16 

16

16 

15 

15 

14 

16

16 

16 

16 

15 

15

14 

14 

15 

14 

b!3

13 

14 

13 

12 

b!3 

11

Jan.

11 

9.6 

b8.2 

b7.2 

*b8.0

10 

10 

12 

11 

12

12 

10 

11 

16 

14

10 

b8.0 

9.9 

7.9 

5.1

5.1 

5.3 

4.0 

2.9 

.6

0 

.1 

0 

16 

14 

16

Feb.

18 

*12 

6.1 

4.4 

3.5

6.4 

4.6 

4.4 

b5.0 

6.1

9.0 

14 

12 

9.0 

11

12 

16 

17 

17 

18

18 

19 

20 

21 

23

25 

22 

20

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

mber. ...................................

mber. ...................................

lendar year

ter year 1948-49 .......................

Map.

22 

*22 

22 

22 

22

22 

22 

22 

21 

22

22 

22 

22

21 

20

20 

20 

19 

19 

19

19 

19 

20 

19 

18

18 

18 

19 

20 

19 

19

Apr.

19 

19 

19 

19 

19

19 

19 

23 

26 

26

28 

30 

33 

33 

30

31 

37 

45 

58 

63

70 

81 

94 

102 

119

173 

225 

231 

237 

264

Secondfoot-days

284.5 

398.6 

438

-

266.9 

373.5 

631 

2,192 

5,788 

1,718 

235.6 

133.7 

102.9

12,562.7

May

231 

222

258 

270 

208

202 

192 

171 

175 

182

205 

218 

21O 

215 

222

228 

220

200 

200 

188

185 

182 

169 

159 

153

143 

127 

123 

123 

110 

97

Maximum

17 

15 

16

-

16 

25 

22 

264 

270 

99 

22 

9.2 

15

270

June

99 

95 

89 

83 

75

65 

61 

63 

54 

51

52 

57 

58 

60 

58

58 

61 

75 

66 

58

54 

51 

46 

41 

40

39

35 

29 

25 

20

July

16 

12 

11 

11 

11

9.9 

9.6 

7.0 

5.8 

4.6

4.2 

3.7 

4.2 

3.7 

2.6

2.6 

2.0 

2.0 

2.7 

2.3

2.7 

2.0 

1.8 

16 

22

17 

14 

12 

9.6 

6.4 

4.2

Minimum

7.6 

7.6 

11

-

0 

3.5

18 

19 

97 

20 

1.8 

.7 

.9

0

Aug.

1.9 

1.1 

2.3 

3.7 

4.2

5,5 

6.1 

8.8 

7.6 

8.5

8.5 

7.9 

7.0 

6.4 

5.5

8.5 

9.2 

5.5 

4.0 

4.2

3.5 

2.3

2.0 

1.6 

1.4

1.5 

1.4 

.9 

.7 

.8 

1.2

Mean

9.18 

13.3 

14.1

-

8.61 

13.3 

20.4 

73.1 

187 

57.3 

7.60 

4.31 

3.43

34.4

Sept.

1.1 

1.1 

.9 

1.5 

1.0

1.5 

3.0 

2.6 

1.8 

1.9

1.8 

2.0 

3.0 

5.1 

4.0

4.2 

4.2 

5.3 

5.5

3.7

3.5 

3.7 

3.5 

2.9 

2.7

2.2 

1.6 

1.6 

15 

11

Runoff In 

acre-feet

564 

791 

869

-

529 

741 

1,250 

4,350 

11,480 

3,410 

467 

265 

204

24,920

Peak discharge (base, 200 see.-ft.).- Apr. 26 (8 p.m.) 291 sec.-ft.5 May 3 (10:30 p.m.) 300 see.- 

ft.; July 24 \7 pirn.) 422 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Oct. 1-14, Feb. 11 to Mar. 1, Mar. 3-14; discharge computed on basis 

of weather records for stations on nearby streams.

539921 O- 51 - 8
104 TRIBUTARIES ABOVE OUNNISON RIVER

Plateau Creek near Collbran, Colo.

Location.- Water-stage recorder, lat. 39°15', long. 107°50', in NE£ sec. 26, T. 9 S.. R. 

94 w., 7 miles east of Collbran.

Drainage area.- 88 square miles.

Records available.- August 1921 to September 1927 (monthly discharge) and October 1933 to 

September 1949 in reports of Geological Survey. August 1921 to September 1949 in 

reports of State engineer.

Average discharge.- 28 years, 99.9 second-feet.

Extremes.- Maximum discharge during year, 911 second-feet June 8 (gage height, 4.61 feet); 

minimum daily, 7.5 second-feet Oct. 26.

1921-49: Maximum discharge, 2,800 second-feet May 28, 1922 (gage height, 6.72 

feet, site and datum then In use), from rating curve extended above 1,300 second-feet; 

minimum dally, 3 second-feet Sept. 21, 1926.

Remarks.- Records good above 30 second-feet and fair below. Five small diversions above 

station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6

^ 

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

17 

12 

11 

10 

16

18 

14 

15 

14 

13

12 

11 

11 

11 

12

11 

9.0 

9.0 

12

11

10 

9.0 

8.5 

8.5 

8.5

7.5 

8.0 

11 

10 

13 

11

Nov.

11 *12 

11 

12 

bll

bio 

bll

b!2 

b!3 

b!4

b!6 

b!5 

b!5 

blS 

b!5

b!4 

14 

b!4 

b!3 

15

blS 

b!5 

15 

14

14

14 

14 

15 

14 

14

Dec.

*14 

14 

14 

14 

13

14 

14 

14 

14 

14

14 

14 

14 

13 

13

b!3 

13 

13 

14 

13

13 

13 

14 

13

bll

b!2 

14

14 

13 

12 

12

Jan.

12 

12 

14 *14 

14

14

14 

15 

15 

15

15 

14 

14 

14 

14

b!3 

b!2 

15 

17

17

17 

15 

15 

15

15

15 

15 

15 

b!4 

b!3 

b!4

Feb.

*17 

17 

16 

17 

16

17 

16 

16 

16 

15

15 

15 

15 

15. 

15

15 

15 

15 

15

15

14

14 

13 

13 

12

12 

12 

12

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Hare 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

raber. ...................................

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

12 

*bll 

13 

b!3 

13

b!3 

14 

14 

14 

13

13 

14 

14 

14 

14

15 

blS 

b!6 

b!6 

14

14 

b!4 

14 

b!3 

b!3

b!3 

b!4 

b!4 

14 

14 

13

Apr.

12 

12 

11 

13 *15

16 

22 

25 

24 

22

20 

24 

32 

32 

32

36 

45 

60 

69 

85

87 

112 

153 

165. 

209

230 

220 

188 

220 

234

Secondfoot-d&ys

354.0 

407 

414

31,626.5

447 

415 

425 

2,425 

11,926 

12,336 

1,572 

556.5 

405.0

31,682.5*

May

185 

206 

305 

360 

293

254 

185 

159 

162 

223

235 

346 

301 

365 

481

481 

385 

355 

360 

380

297 

328 

418 

546 

602

664 

594 

566 

62S 

646 

546

Maximum

18 

16 

14

1,130

17 

17 

16 

234 

664 

664 

115 

29 

33

664

June

430 

336 

318 

390 

488

562 

516 

610 

664 

628

586 

594 

578 

509 

448

474 

530 

562 

502 

418

350 

289 

289 

265 

206

185 

182 

162 

141 

124

July

Minimum

7.5 

10 

11

7.0

12 

12 

11 

11 

159 

124 

20 

9.5 

8.5

7.5

115 

107 

102 

92 

85

85 

112 

76 

61 

61

60 

49 

42 

40 

34

31 

30 

29 

29 

33

31 

25 

27 

31 

46

29 

26 

21 

20 

22 

21

Aug.

20 

21 

26 

25 

24

25 

25 

29 

26 

24

21 

18 

19 

20 

16

16 

17 

17 

15 

14

14 

13 

14 

15 

14

14 

13 

11 

11 

10 

9.5

Mean

11.4 

13.6 

13.4

86.4

14.4 

14.8 

13.7 

80.8 

385 

411 

50.7 

18.0 

13.5

86.8

Sept.

17 

15 

11 

11 

11

10 

9.0 

9.0 

9.0 

12

16 

33 

26 

26 

16

14 

12 

12 

11

11

9.5 

9.5 

9.0 

9.0 

9.0

10 

8.5 

8.5 

17 

24

Runoff in 

acre-feet

702 

807 

821

62,740

887 

823 

843 

4,810 

23,650 

24,470 

3,120 

1,100 

803

62,840

Peak discharge (base, 830 sec. -ft.).- June (8:30 P.m.) 911 see. -ft.

winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
TRIBUTARIES ABOVE OUNNISON RIVER 105

Plateau Creek near Cameo, Colo.

Location.- Water-stage recorder, lat. 39°11', long. 108°16', In SW^ sec. 18, T. 10 S., R. 

97 w., 300 feet from State Highway 65, 1.1 miles upstream from mouth, and 4 miles northeast of Cameo.

Drainage area.- 604 square miles.

Records available.- April 1936 to September 1949.

Average discharge.- 13 years, 227 second-feet.

Extremes.- Maximum discharge during year, 1,370 second-feet May 16 (gage height, 4.57 

i'eet); minimum dally, 56 second-feet Sept. 6, 7, 24.

1936-49: Maximum discharge, 3,920,second-feet May 27, 1942 (gage height, 7.73 

feet), from rating curve extended above 3,000 second-feet; minimum daily, 16 secondfeet July 14, 15, Aug. 17, 18, 1940.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wmcn are fair. Many diversions above station for irrigation.

Revisions.- W 979: 1942.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24

25

86 

27 

26 

29 

30 

31

Oct.

so

71 

69 

67 

85

90 

90 

87 

35 

65

85 

S2 

80 

S2 

80

80 

78 

S2 

S2 

SS

85 

85 

87 

87 

S7

92 

92 

100 

103 

93 

96

Nov.

98 

100 

100 

116 

93

35 

95 

95 

62 

S7

103 

95 

92 

95 

95

98 

105 

90 

73 

90

S2 

76 

90 

90 

90

S7 

92 

62 

100 IDS

Dec.

12S

111 

114 

125 

119

125 

114 

130 

111 

116

139 

128 

12S 

136 

100

7S 

92 

87 

82 

85

35 

32 

90 

92 

70

74 

36 

96 

92 

62 

62

Jan.

66 

90 

82 

76 

70

«70 

70 

7S 

38 

96

96 

96 

96 

94 

90

SO 

70 

72 

SO 

SS

96 

96 

96 

92 

SS

82 

80 

7S 

74 

72 

74

Feb.

76 

«7S 

S2 

82 

80

S2 

86 

92 

88

90

94 

96 

94 

84 

SO

84 

82 

SO 

80 

S4

90 

80 

34 

68 

36

96 

94 

105

Month

00 to 

Nova

D»oe

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

Jura 

Julj 

Augu 

Sept

He

lendar year 19 4i3 .......................

ter year 1948-49. ......................

Mar.

119

nos

116 

10S 

116

128 

130 

128 

103 

103

105 

110 

120 

115 

120

130 

140 

130 

140 

16O

170 

170 

150 

140 

130

135

145 

165 

185 

196 

145

Apr.

Secondfoot-days

2,639

2,766 

3,179

90,494

2,598 

2,417 

4,157 

9,9S7 

25,201 

19,979 

3,672 

2,230 

2,148

SO, 973

Peak discharge (base. 1,150 sec. -ft.).- May 4 (6 a.m.)

151 

202 

151 

12S 

148

166 

181 

264 

281 

202

163 

190 

254 

212 

17S

206 

254 

302 

330 

35S

362

396 

480 

560 

652

656 

6S4 

5S4 

632 

6SO

May

56S 

556 

765 

948 

815

632 

56S 

492 

448 

540

760 

S45 

770 

790 

1,010

1,120 

8S2 

7S5 

750 

845

660 

660 

730 

912 

1,030

1,150 

1,040 

990 

1,060 

1,120 

960

Maximum

103 

116 

139

2.760

93 

105 

196 

6S4 

1.150 

1,060 

230 

US 

178

1,150

June

790 

632 

564 

616 

720

860 

805 

876 

1,060 

984

1,000 

978 

966 

S45 

725

6S4 

750 

835 

860 

6SS

564 

488 

460 

492 

366

323

309 

2S4 

244 

209

July

196 

ISO 

175 

170 

170

180 

210 

230 

ISO 

150

140 

128 

1O3 

90 

S7

75 

67 

67 

75 

92

32 

SO 

75 

75 

122

108 

90 

78 

71 

64 

62

Aug.

62 

58 

60 

62 

62

60 

62 

73 

78 

80

75 

75 

73 

67 

67

69 

82 

100 

78 

71

69 

69-flib 

75

73 

71 

67 

69 

67 

62

Minimum Mean

67 S5.1 

62 92.2 

70 103

47 247

70 83. S 

76 S6.3 

103 134 

12S 333 

44S 813 

209 666 

62 118 

58 71.9 

56 71.6

56 222

1,150 sec. -ft.; May 16 (6 a.m.)

Sept.

64 

67 

60 

62 

60

56 

56 

58 

60 

64

62 

87 

85 

85 

75

71 

67 

62 

62 

62

62 

60 

60 

56 

58

62 

62 

62 

163 

178

Runoff In 

acre-feet

5,230 

5,490 

6,310

179,500

5, ISO 

4,790 

8,250 

19,810 

49,990 

39,630 

7,280 

4,420 

4,260

160,600

1,370 sec.-

 . - - . 1,330 see.-ft,j June 9 (1 a.m.) 1,310 sec.-ft. 

* Winter discharge measurement made on this day.

_ JJ°*£i- Stage-discharge relation affected by Ice Dec. 25 to Feb. 26. Ho gage-height record Mar. 

12-29, July 2-lij discharge computed on basis of weather records and records for nearby stations.
106 TRIBUTARIES ABOVE GUNNISON RIVER

Buzzard Creek near Collbran, Colo.

Location.- Water-stage recorder, lat. 39°16', long. 107°52', In sec. 14, T. 9 S., R. 94 W., 

hair a mile upstream from Brush Creek and 7 miles east of Collbran.

Drainage area.- 139 square miles.

Records available.- August 1921 to September 1927 (monthly discharge only) and October

1933 to September 1949 in reports of Geological Survey August 1921 to September 1949 

in reports of State engineer.

Average discharge.- 28 years, 53.9 second-feet.

Extremes.- Maximum discharge during year, 487 second-feet May 4 (gage height, 4.40 feet), 

minimum daily, 0.8 second-foot Aug. 19-22.

1921-49: Maximum discharge, 1,630 second-feet May 14, 1941 (gage height, 7.80 feet), 

from rating curve extended above 900 second-feet; minimum, 0.1 second-foot Aug. 27,

1934 (gage height, 0.76 foot).

Remarks.- Records good above 20 second-feet and fair below. Diversions above station 

for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.1 

2.1 

2.1

2.1 

2.4

3.7 

5.9 

4.5 

3.7 

3.6

3.2

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.2 

3.2

3.2 

3.0 

2.6 

2.6 

2.6

2.6

3.0 

3.6 

4.3 

4.8 

5.6

Nov.

4.8 

*4.3 

.8 

.0 

.8

.1 

.2 

.5 

.1 

.1

.2 

.3 

.5 

.8 

.8

.2 

.2 

.4 

.1 

.3

.5 

.5 

.3 

.5 

.8

.2 

.2 

.5 

a3.8 

33.9

Dec.

a4.1 

*b4.2 

b6.0 

b6.0 

b6.0

b6.0 

b6.0 

b6.0 

b6.0 

b6.0

b6. 5 

7.0 

6.6 

6.6 

6.6

5.9, 

6.2 

6.2 

6.2 

6.2

6.2 

5.9 

5.9 

6.2 

6.2

b5.6 

b5.6 

b5.6 

b5.6 

b5.6 

b5.6

Jsn.

(*) 

> a7.5

Feb.

(*)

> a7.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ember. ..................................

ter year 1948-49 .......................

Mar.

a6.4 

*b6.3 

be. 5 

b6.2 

b7.0

b7.6 

b7.6 

7.3 

7.3 

6.6

7.6 

7.3 

7.0 

7.0 

8.4

9.6 

12 

11 

15 

20

21 

18 

16 

11

11

9.2 

9.2 

10 

8.8 

9.2 

8.4

Apr.

11 

12 

12 

11 

19

30 

43 

57 

52 

51

41 

77 

83 

62 

56

82 

110 

127 

138 

145

158 

177 

206 

239 

260

270 

276 

234 

272 

312

Secondfoot-days

100.7 

138.7 

184.3

22,118.8

232.5 

196.0 

305.5 

3,623 

8,351 

4,024 

387.3 

47.3 

37,4

17,627.7

May

239 

251 

352 

374 

326

247 

222 

190 

182 

232

339 

347 

308 

339 

374

361 

278 

272 

262 

278

202 

203 

216 

247 

254

268 

256 

249 

247 

223 

213

Maximum

5.9 

7.0 

7.0

639

21 

312 

374 

218 

26 

3.4 

2.8

374

June

188 

151 

139 

165 

18o

186 

174 

184 

206 

192

190 

218 

197 

174 

144

131 

142 

162 

159 

130

104 

88 

77 

89 

65

53 

46 

38 

28 

24

July

23

20 

19 

18 

18

16 

26 

24 

18 

16

16

14 

11 

11 

10

7.6 

7.0 

5.2 

5.2 

16

9.2

37.0 

36.0 

37.0 

319

39.0 

38.0 

37.0 

36.0 

4.5 

3.6

Minimum

2.1 

3.4 

4.1

.4

6.2 

11 

182 

24 

3.6 

.8 

.9

.8

Aug.

3.4 

2.8 

3.0 

2.8 

2.4

2.1 

2.0 

2.0 

2.3 

2.3

1.8 

1.3 

1.2 

1.2 

1.0

1.0 

1.2 

1.2 

.8 

.8

.8 

.8 

1.0 

1.3 

1.2

1.0" 

1.0 

.9 

.9 

.9 

.9

Mean

3.25 

4.62 

5.95

60.4

7.5 

7.0 

9.85 121 ' 

269 

134 

12.5 

1.53 

1.25

48.3

Sept.

0.9 

1.0 

1.0 

1.2 

1.2

1.0 

.9

1.0 

1.0 

1.0

1.2 

1.2 

1.2 

1.2 

1.2

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.2 

1.3 

1.6 

2.8

Hunoff In 

acre-feet

200 

275 

366

43,87O

461 

389 

606 

7,190 

16,560 

7,980 

768 

94 

74

34,960

Peak discharge (base, 350 sec.-ft.).- May 4 (12:30 a.m.) 487 sec.-ft.; May 16 (1:30 a.m.) 484 

sec.-ft.

* Winter discharge measurement made on this day.

a Ho gage-height record (stage-discharge relstlon affected by lee during some of periods); dlstcharge computed on basis of* discharge measurements, weather records, and records for stations on 

nearby streams.

b Stsge-dlscharge relation affected by Ice.
TRIBUTARIES ABOVE GUNNISON RIVER 107

Big Creek at upper station, near Collbran, Colo.

Location^- Water-stage recorder, lat. 39°08', long. 107°55', In NEij sec. 5, T. 11 S., R. 

. 94 W., about half a mile downstream from Barter Creek and 8 miles south of Collbran.

Drainage area.- 17.3 square miles.

Records available.- June 1945 to September 1949.

Extremes.- Maximum discharge during year, 223 second-feet June 10 (gage height, 3.92 feet), 

 from rating curve extended above 130 second-feet; minimum daily not determined, occurred

during period of no gage-height record.

1945-49: Maximum discharge, 474 second-feet May 21, 1948, from rating curve extended

above 130 second-feet; maximum gage height, 4.91 feet May 29, 1947 (result of failure

of small reservoir dam); minimum daily discharge, 3.2 second-feet Mar, 16-26, 1946,

Feb. 9, 10, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

whlcn are fair. No diversion above station. Several small storage reservoirs above 

station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

6 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.5 

9.2 

9.0 

9.2 

10

10 

10 

10 

9.5 

9.0

8.2 

7.8 

7.8 

7.8 

7.8

7.5 

7.2 

7.2 

7.2 

7.2

7.0 

7.0 

7.0

6.5 

6.3

6.5 

6.1 

5.9 

6.5 

5.7 

6.1

Nov.

*6.1 

5.2 

5.2 

5.2 

5.2

5.4

5.7 

5.4 

5.6 

5.4

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.4

5.4 

5.2 

5.2

Dec.

*5.4 

5.4 

5.4 

5.4 

5.6

5.6 

5.6 

5.6 

5.4 

5.6

5.6 

5.7 

5.7 

5.7 

5.7

5.7

5.7 

5.7 

5.7 

5.7

5.7 

5.7 

5.7 

5.4 

5.0

5.2 

5.4 

5.4 

5.4 

5.4 

5.4

Jan.

> 5.0

Feb.

 5.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

4.5

*5.0

5.0 

5.0 

5.0 

5.2 

5.2 

5.2

Apr.

5.2 

5.2 

5.0 

5.6

6.1

7.2 

8.5 

9.2 

8.2 

7.5

7.5 

8.0 

8.8 

8.5 

8.2

8.8 

9.5 

11

12 

12

13 

18 

24 

30 

35

39 

38 

37 

37 

35

Secondfoot -days

241.7 

158.8 

171.6

11,551.2

155.0 

140.0 

143.6 

468.0 

2,790 

3,445 

1,419 

1,132 

391.0

10,665.7

May

29 

47 

71 

69 

55

50 

44

41 

48 

65

74

76 

76 

102 

111

88 

80 

86 

107 

95

100 

116 

125 

111 

127

125 

125 

140 

154 

135 

118

Maximum

10 

6.1 

5.7

362

39 

154 

186 

77 

63 

19

186

June

109 

101 

96 

100 

107

122 

124 

171 

178 

186

184 

174 

164 

145 

124

124 

141 

161 

157 

128

105 

91

86 

77 

69

44 

40 

48 

46 

43

July

40 

39 

36 

33 

33

37 

37 

34

32 

32

29 

26 

26 

26 

31

33 

33 

46 

50 

58

60 

59 

60 

62 

76

77 

72 

69 

59 

57 

57

Minimum

5.7 

5.2 

5.0

3.2

5.0 

29

40 

26 

17 

8.2

-

Aug.

60 

62 

63 

63 

59

58 

58 

57 

56 

50

48 

40 

38 

38 

37

36 

30 

26 

25 

24

24 

21 

19 

18 

18

17 

18 

17 

17 

17 

18

Mean

7.80 

5.29 

5.54

31.6

5.0 

5.0 

4.63 

15.6 

90.0 

115 

45.8 

36.5 

13.0

29.2

Sept.

19 

19 

18 

18 

18

19 

18 

18 

18

17

17 

15 

13 

13

11

11 

11

10 

10 

10

10 

9.5 

9.2 

9.0 

8.5

8.2 

8.2 

8.2 

9.0 

8.2

Runoff in 

acre-feet

479 

315 

340

22,900

307

278 

285 

928 

5,530 

6,830 

2,810 

2,250 

776

21,130

* Winter discharge measurement made on this day

Note.- Stage-discharge relation affected by ice Nov. 4-7, Dec. 24 to Jan. 3. Ho gage-height record 

Jan."4 to Mar. 24 (stage-discharge relation probably affected by ice during entire period); discharge 

computed on basis of weather records and records for stations on nearby streams.
108 TRIBUTARIES ABOVE GUNNISON RIVER

Cottonwood Creek at upper station, near Mollna, Colo.

Location.- Water-stage recorder and Parshall flume, lat. 39°08', long. 1080 00', in SE^- 

 sec. 3, T. 11 S., R. 95 W., 6 miles southeast of Molina.

Drainage area.- 16.3 square miles.

Records available.- May 1945 to September 1949.

Extremes.- Maximum discharge during year, 68 second-feet June 18 (gage height, 2.52 feet), 

from rating curve extended above 50 second-feet; minimum daily recorded, 3.2 second-feet 

Nov. 4, 5.

1945-49: Maximum discharge, 101 second-feet May 18, 1948 (gage height, 3.01 feet), 

from rating curve extended above 45 second-feet; minimum daily recorded, that of Nov. 

4, 5, 1949.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

No diversion above station. Several small storage reservoirs above station for 

irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19 

18 

18 

17 

19

16 

15 

14 

12 

7.9

.3 

.3 

.3 

.3

.6

7.9 

7.3 

6.5 

6.5 

6.5

6.5 

6.0 

4.9 

4.9 

4.9

4.9 

4.9 

4.9 

4.9 

4.9 

4.9

Nov.

4.4

 4.5 

4.6 

3.2 

3.2

 4.0

Dec.

( ) 

' 4.5

Jan.

C) 

' 5.5

Feb.

( )

' 6.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr!

MA v

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

h. ......................................

ter year 1943-49 .......................

Mar.

»6.5 

6.7 

6.7 

6.7 

6.8

6.8 

6.8 

7.0 

7.0 

7.O

7.0 

6.8 

6.8 

7.0 

7.1

7.2 

7.2 

7.2 

7.2 

7.4

7.5 

7.4 

7.5 

7.6 

7.6

7,6 

7.5 

7.6 

7.6 

7.6 

7.6

Apr.

7.6 

8.0 

8.0 

8.1 

9.4

9.4 

9.4 

9.7 

9.1 

8.8

8.8 

8.8 

8.5 

8.2 

8.2

8.5 

9.1 

9.4 

9.7 

10

10 

12 

14 

17 

19

21 

17 

17 

22 

18

Secondfoot-days

284.0 

119.9 

139.5

7,142.4

170.5 

168.0 

222.0 

343.7 

1,021 

1,472 

1,259 

1,084 

627.7

6,911.3

May

15 

22 

32 

29 

26

20 

17 

15 

17 

25

32 

32 

29 

36 

42

37 

35 

36 

36 

34

30 

34 

39 

41 

46

46 

44 

43 

45 

44 

42

Maximum

19

82

7.6 

22 

46 

64 

SS 

47 

26

64

June

40 

36 

41 

46 

47

49 

49 

50 

50 

51

55 

59

61 

56 

54

55 

55 

61

64 

61

55

50 

48 

49

46

41

41 

37 

33 

32

July

32 

32 

32 

32 

36

37 

33 

31 

32 

32

30 

30 

30 

34 

42

47 

46 

45 

49 

55

S3 

49 

47 

50 

49

47 

49 

47 

45 

43 

43

Minimus

4.9

-

6.5 

7.6 

15 

32 

30 

24 

9.7

_

Aug.

41 

44 

47 

46 

44

43 

43 

43 

38 

37

37 

32 

30 

28 

27

33 

43 

41 

41 

37

30 

32 

33 

30 

29

28 

27 

26 

26 

24 

24

Mean

9.16 

4.00 

4.5

19.5

5.5

£.0 

7.16 

11.5 

32 9 

49 !l 

40.6 

35.0 

20.9

IB. 9

Sept.

24 

24 

26 

2* 

24

24 

24 

23 

24 

25

25 

24 

24 

24 

24

22

20 

21 

22 

21

19

19 

17 

19 

19

9.7 

15 

12 

17 

12

Runoff in 

acre-feet

563 

238 

277

14,170

338 

333 

440 

682 

2,030 

2,920 

2,500 

2,150 

1,250

13,720

* Winter discharge measurement made on this day. 

Mote.- No gage-height record Nov. 6 to Feb. 28; discharge computed on basis of 3 discharge measurements and weather records.
TRIBUTARIES ABOVE OUNNISON RIVER 109

Bull Creek at upper station, near Mollna, Colo.

Location.- Water-stage recorder, lat. 39°07', long. 108°02', In SW£ sec. 5, T. 11 S., R. 

9J> w., 6 miles south of Mollna.

Drainage area.- 9.7 square miles.

Records available.- May 1945 to September 1949.

Extremes.- Maximum discharge during year, 62 second-feet June 18 (gage height, 2.18 feet), 

rrom rating curve extended above 35 second-feet; minimum daily, 0.8 second-foot Nov. 5. 

1945-49: Maximum discharge, 82 second-feet May 19, 1948, from rating curve extended 

above 35 second-feet; maximum gage height, 2.94 feet Oct. 12, 1946 (beaver dam); minimum dally discharge, 0.8 second-foot Nov.i 16-23, 1946, Nov. 5, 1949.

Remarks.- Records fair except those for periods of Ice effect or no gage-height record, 

vmich are poor. One diversion and several small reservoirs above station for Irrigation,

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.9 

4.4 

4.4 

4.6 

4.4

4.0 

3.6 

3.5 

3.8 

3.6

3.5 

3.6 

3.5 

3.5 

3.5

3.5 

3.3 

3.3

3.1 

3.1

2.9 

2.9 

2.3 

2.0 

1.9

2.0 

2.0 

2.1 

2.3 

2.4 

1.9

Nov.

1.1 

 1.0 

1.0 

.9

b.8

b.9 

1.1 

bl.O 

bl.O 

bl.O

1.2 

1.1 

1.1 

1.1 

1.0

.9 

.9 

1.0 

1.3 

1.1

1.2 

1.2 

1.3 

1.2 

1.3

1.3 

1.2 

1.2 

1.2 1.2

Dec.

. al.e

Jan.

(»)

' a2.6

 2.7

Feb.

2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.7 

2.7

8.7 

2.7 

2.7

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augv 

Sept

Ha

Bber. ...........--------------.-----.---

lendar year 1943

ter year 1948-49 .......................

Mar.

 2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.9 

2.7

2.4 

2.4 

2.4 

2.6 

2.7

3.1 

2.9 

2.7 

2.9 

3.1

2.9 

2.9 

b2.9

b2. 7 

b2.7

b2.7 

b2.7 

b2.7 

2.9 

2.9 

2.9

Apr.

2.9 

3.6 

3.1 

3.1 

3.3

 3.3 

3.8 

4.0 

3.8 

3.3

3.5 

3.8 

3.8 

3.8 

3.8

4.2 

5.4 

5.1 

6.2 

6.0

7.0 

8.0 

10 

13 

14

-36 

15 

18

le

14

Secondfoot -day s

99.8 

32.8 

55.8

3,546.5

80.7 

75.6 

85.3 

212.8 

743 

1,069 

471 

428.8 

313.7

3,668.3

May

14 

18 

24 

24 

20

16 

14 

12 

11 

15

18 

18 

18. 

25 

31

22 

19 

22 

24

25

21 

23 

28 

35 

37

35 

32 

35 

38 

37 

32

Maximum

4.9 

1.3

7»

2.7 

3.1 

18 

38 

57 

21 

19 

7.6

57

June

28 

24 

24 

29 

30

33 

32 

36 

39 

40

40 

39 

44 

43 

44

45 

49 

57 

52 

47

40 

39 

39 

36 

31

28 

25 

21 

18 

17

July

Minimum

1.9 

.8

.8

2.7 

2.4 

2.9 

11 

17 

13 

9.9 

5.1

.8

17 

18 

18 

19 

21

19 

18 

18 

17 

18

16 

14 

14 

14 

14

13 

13 

13 

15

14

13 

13 

13 

14 

15

14 

13 

13 

14 

13 

13

Aug.

13 

14 

14 

14 

17

19 

19 

19 

19 

19

18 

16 

15 

15 

14

13 

11 

11 

10 

10

9.9 

9.9

12 

13 

13

13 

13 

12 

11 

11 

11

Mean

3.22 

1.09. 

1.8

9.69

2.60 

2.70 

2.75 

7.09 

24.0 

35.6 

15.2 

13.8 

10.5

10.1

Sept.

10 

11 

11 

13 

11

12 

16 

16 

16 

14

15 

15 

15 

13 

13

12 

9.9 

9.9 

9.5 

7.7

6.2 

6.0 

5.7 

5.1 

5.4

5.4 

6.0 

6.2 

7.7

10

Runoff In 

acre-feet

198 

65 

111

7,040

160 

150 

169 

422 

1,470 

2,120 

934 

851 

622

7,270

 Winter discharge measurement made on this day.

a No gage-height record (stagte-dlscharge relation affected by Ice during part of period) ; discharge 

computed on basis of 1 discharge measurement, weather records, Mid records for stations on nearby 

streams.

b Stage-discharge relation affected by lee.
110 TRIBUTARIES ABOVE GUNNISON RIVER

Mesa Creek near Mesa, Colo.

Location.- Water-stage recorder, lat. 39°05', long. 108°07', in SW^ sec. 16, T. 11 S., R. 

9b W., an eighth of a mile upstream from unnamed stream and 5| miles southeast of Mesa.

Records available.- April 1941 to September 1949.

Extremes.- Maximum discharge during year, 33 second-feet July 24; maximum gage-height, 2.33 

reet Dec. 25 (ice jam); minimum daily, 1.1 second-feet Apr. 1.

1941-49: Maximum discharge observed, 140 second-feet May 12, 1941, from rating curve 

extended above 50 second-feet; maximum gage height, 2.45 feet Dec. 31, 1946 (ice jam); 

minimum daily discharge, 0.6 second-foot Mar. 9, 11-14, 1946, Mar. 18-20, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair Plow partly regulated by small reservoirs above station.

Rating tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

{Shifting-control method used Apr. ZZ to May 9,

June 22 to Aug. 4, Sept. 3-30)

Oct. 1 to Jan. 18, July 25 to Sept. 30 Jan. 19 to July 24

0.8 5.2 1.2 23 0.6 2.0 l.o 15 

.9 9.0 1.3 29 .7 4.0 1.2 25 

1.0 13 .8 6.7 1.3 31 

.9 10

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

2n

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.6 

8.2 

7.9 

7.9 

9.0

9.0 

9.0 

8.6 

8.2 

8.2

8.2 

7.9 

6.3 

3.2 

3.0

3.7 

8.2 

8.6 

9.0 

9.4

9.0 

9.0 

8.2 

6.0 

5.6

5.6 

5.6 

6.0 

6.3 

6.3 

6.3

Nov.

*6.0 

6.0 

6.3 

6.3 

b5.6

b5.6

6.0 

b5.6 

b5.2 

b5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

b5.2 

b5.2 

5.6

5.2 

5.0 

5.0 

5.0 

5.0

5.0 

5.2 

a5.0 

a5.0 

*5.6

Dec.

5.6 

5.6 

5.6 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

b5.0 

b4.8

b4.8 

5.6 

5.6 

5.6 

5.6 

5.6

Jan.

5.6 

6.0 

5.6 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

b5.0 

b4.8 

b4.8

6.4 

6.7

6.7 

6.4 

6.4 

6.4 

6.4

6.4 

6.4 

6.4

bs.ts

b5.6 

*6.4

Feb.

6.2 

4.5 

4.5 

4.8

5.1

5.1

5.4 

5.4 

5.6 

5.9

6.2 

6.2 

6.2 

6.4 

6.4

6.4 

6.4 

6.4 

6.4 

6.4

6.4 

6.4 

6.4 

6.4 

6.4

6.4 

6.4 

6.4

Month

Octo 

Hove 

Dece

Ca

janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar.

6.4 

5.4 

3.6 

4.0 

4.3

4.3 

4.5 

4.5 

4.8 

4.8

5.1 

5.1 

5.1 

5.1 

5.4

5.4 

5.4 

5.4 

5.4

5.4

5.4 

5.4 

5.4 

5.6 

5.6

5.6 

5.6 

5.9 

5.6 

5.1 

1.3

Apr.

1.1 

3.0 

1.6 

2.0 

1.9

1.7 

1.8 

2.0 

1.8 

1.6

1.7 

1.8 

2.0 

1.8 

1.9

2.4 

4.0 

4.8 

5.1 

5.9

6.4 

8.6 

11 

14 

16

17 

16 

16 

18 

17

May

15 

18 

22 

22

20

18 

15 

14 

15 

20

23 

21 

20 

23 

24

24 

22 

22 

21 

22

20 

21 

22 

24

26

27 

27 

26 

27 

27 

26

fo^°Says » 

226.0 9.4 

161.2 6.3 

163.4 5.6

4,044.4 40

176.4 6.7 

167.1 6.4 

155.9 6.4 

189.9 18 

674 27 

727 27 

864 32 

602 22 

388.0 18

4,494.9 32

June

24 

24 

24 

23 

24

24 

24 

24 

24 

24

24 

24 

24 

23 

22

22 

22 

24 

24 

23

24

26 

26 

25 

27

26 

26 

26 

25 

25

July

26 

24 

25 

26 

26

26 

26 

26 

26 

26

26 

27 

29 

29 

29

29 

29 

29 

31 

31

31 

32 

32 

32 

32

29 

28 

27 

26 

25 

24

Aug.

22 

22 

22 

22

20

19 

18 

17 

18 

18

18 

20 

20 

20

20

20 

20 

21 

21 

20

19 

19 

20 

19 

19

18 

18 

18 

18 

18 

18

Sept.

18 

18 

18 

18 

18

18 

18

17 

17 

16

16 

16 

16 

15 

14

13 

12 

11 

10 

8.6

8.2 

8.2 

7.9 

7.9 

8.2

8.6 

7.5 

7.5 

8.2 

8.2

Mini, Mean *£«£

3.0 7.29 448 

5.0 5.37 320 

4.8 5.27 324

.6 11.1 8,020

4.8 5.69 350 

4.5 5.97 331 

1.3 5.03 309 

1.1 6.33 377 

14 21,7 1,340 

22 24.2 1,440 

24 27.9 1,710 

17 19.4 1,190 

7.5 12.9 770

1.1 12.3 8,910

* Winter discharge measurement made on this day.

a No gage-height record; discharge competed on basis of weather records.

b Stage-discharge relation affected by Ice.
GUNNISON RIVER BASIN 111

Taylor Park Reservoir at Taylor Park, Colo.

Location.- Staff gage, lat. 38°49', long. 106°36', at dam in sec. 24, T. 14 S., R. 83 W., 

on Taylor River, just downstream from Taylor Park and 17 miles northeast of Almont. 

Datum of gage is 9,187 feet above mean sea level (Bureau of Reclamation bench mark); 

gage readings have been reduced to elevations above mean sea level.

Records available.- October 1938 to September 1949 in reports of Geological Survey. September laay to^September 1938 in files of Bureau of Reclamation.

Extremes.- Maximum contents observed during year, 109,200 acre-feet June 25 (elevation, 

9,331.40 feet); minimum, 53,390 acre-feet Oct. 2, 3 (elevation, 9.298.60 feet).

1938-49: Maximum contents observed, 109,700 acre-feet June 7-12, 1948 (elevation. 

9,331.65 feet); minimum, 9,950 acre-feet Sept. 20-22, 1940 (elevation, 9,243.55 feet).

Remarks.- Reservoir is formed by an earth and rock-fill dam. Dam completedjby Bureau of 

Reclamation in September 1937. Capacity of reservoir, 106,200 acre-feet between elevations 9,187 feet (bottom of outlet gates) and 9,330 feet (crest of spillway). Ho 

dead storage. Water used for irrigation in Uncompahgre Valley. Ho other reservoirs 

of any consequence in Gunnison River Basin. Figures given herein are of usable contents.

Cooperation.- Records furnished by Uncompahgre Valley Water Users Association. 

Revisions (water years).- W 1089: 1940(m), 1942(M), 1945, 1946.

Monthly elevation and contents, water year October 1948 

to September 1949

Date

Dec. 31. ....................

Calendar year 1948. .......

Sept . 30 .....................

Water year 1948-49 ........

Elevation 

(feet)

9., 298.75

9,303.45

_

9 330 55

9,3O7.65

Contents 

(aeref«et)

53,580

59,660

_

66,040

Change In 

contents 

during 

month 

(acre-feet)

+2.40O

-33,310

-27,950

+12.460
112 GUNNISON RIVER BASIN

Taylor River below Taylor Park Reservoir, Colo.

Location. Water-stage recorder, lat. 38°49", long. 106°36', in sec. 24, T. 14 S., R. 83.

W., 50 feet downstream from bridge on State Highway 306, a quarter of a mile downstream

from Taylor Park Reservoir Dam, and 16 miles northeast of Almont. Datum of gage is

9,168.67 feet above mean sea level (Bureau of Reclamation bench mark). Chain gage

1,000 feet upstream used during winter periods. 

Drainage area.- 245 square miles". 

Kecoras available.- October 1938 to September 1949. September 1933 to August 1934 (in

reports or Geological Survey), June 1929 to August 1934 (in reports of State engineer),

at site at Taylor Park (records practically equivalent if flow of Texas and Willow

Creeks is added).

Average discharge.- 15 years (1929-33, 1938-49), 181 second-feet. 

Extremes.- Maximum discharge during year, 1,190 second-feet June 19 (gage height, 4.56

reet); minimum daily, 13 second-feet Dec. 3-5.

1938-49: Maximum discharge, 1,440 second-feet June 4, 1948 (gage height, 4.80 feet);

no flow May 1 to July 3, 1940, May 7-22, 1942, May 5-21, 1943. 

Remarks.- Records good. Chain gage read once daily and each time reservoir gates were

changed, during winter. Flow regulated by Taylor Park Reservoir (see preceding page).

One small diversion from Willow Creek above reservoir. 

Cooperation.- Gage-height record furnished by Uncompahgre Valley Water Users Association.

Rating tables, water year 1948-49 (gage height, In feet,

and discharge. In second-feet) 

(Shifting-control method used Nov. 9-27, Apr. 6-3O)

Oct. 1 to Nov. 8 Nov. 9 to Apr. 30 May 1 to Sept. 3O

1.3 45 0.2 13 0,9 55 1.1 29 2.1 205 

1.4 59 .3 16 1.1 81 1.2 36 2.7 395 

 1.6 93 .4 20 1.3 114 1.3 46 3.5 69O 

1.8 132 .5 25 1.8 214 1.5 75 4.4 1,110 

.7 38 1.8 132

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

188 

104 

104 

95 

53

52 

52 

52 

52 

52

52 

52 

55 

59 

59

61 

61 

53 

43 

48

55 

56 

58 

58 

49

49 

51 

51 

51 

51 

51

Nov.

51 

52 

52 

53 

53

53 

55 

55 

55 

54

54 

54 

54 

54 

54

54 

54 

53 

53 

53

53 

53 

53 

53 

53

53 

53 

54 

54

46

Dec.

46 '48 

13

13 

13

29 

50 

48 

48 

44

46 

46 

46 

46 

46

46 

46 

46 

46 

46

46 

46 

46 

46 

46

46 

46 

46 

46 

46 

46

Jan.

46 

46 

46 

46 

46

46 

46 

46 

46 

46

46 

46 

46 

46 

46

46 

46 

46 

46 

46

46 

46 

46 

46 

46

46 

46 

46 

46 

46 

46

Feb.

46 

46 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Wnv

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948 

ary

uary

1. ......................................

ter year 1948-49 .......................

Mar.

48 

48 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48 

48 

48 

48

Apr.

48 

48 

48 

94

187

216 

216 

216 

216 

216

216 

216 

216 

221 

221

221 

221 

221 

221 

221

221 

221 

221 

221 

221

221 

221 

221 

221 

221

Secondfoot -days

1,927 

1,595 

1,318

103,712

1,426 

1,340 

1,488 

5,910 

2,318 

13,519 

14,488 

11,233 

16,895

73,457

May

229 

205 

205 

158 

95

95 

95 

95 

99

101

102 

104 

52 

28 

30

29 

29 

29 

29 

30

30 

30 

30 

30 

30

54 

54 

54 

56 

57 

54

Maximum

188 

55 

50

1,400

46 

48 

48 

221 

229 

1,120 

738 

618 

802

1,120

June

52 

52 

52 

57 

60

60 

60 

60 

62 

62

62 

62 

63 

63 

64

108 

378 

690 

1,120 

1,120

1,020 

985 

1,040 

1,080 

955

900 

865 

835 

786 

746

July

734 

738 

'722 

702 

670

646 

690 

690 

638 

622

582 

538 

493 

462 

430

395 

364 

353 

356 

367

364 

353 

325 

325 

342

328 

298 

271 

247 

229 

214

Aug.

198 

185 

188 

195 

235

244 

229 

256 

256 

229

162 

153 

124 

128 

241

292 

406 

462 

504 

510

510 

510 

510 

510 

552

552 

552 

552 

560 

610 

618

Sept.

670 

718 

718 

718 

726

758 

762 

766 

766 

738

798 

802 

790 

758 

758

586 

423 

430 

437 

524

514 

423 

364 

319 

310

265 

265 

266 

262 

262

Minimum Mean «£e^»

43 62.2 3,820 

46 53.2 3,160 

13 42.5 2,610

13 283 205,700

46 46.0 2,830 

46 47.9 2,660 

48 48.0 3,950 

48 197 11,720 

28 74.8 4,600 

52 451 26,810 

214 467 28,740 

124 362 22,280 

262 563 , 33,510

13 EOl 146,700

Note.- Discharge computed from chain-gage readings Nov. 9 to Apr. 30.
GUNNISQN RIVER BASIN 113

Taylor River at Almont, Colo.

Location,- Water-stage recorder, lat. 38°40", long. 106 C 51', in sec. 22, T. 51 N., R. 1 

K., in Almont, 10 feet downstream from bridge on State Highway 306, 800 feet upstream 

from confluence with East River. Datum of gage is 8,010.76 feet above mean sea level, 

datum of 1929,

Drainage area.- 440 square miles,

Records available.- July 1910 to September 1931 and October 1933 to September 1949 in

reports or Qeoioglcal Survey, July 1910 to September 1949 in reports of State engineer.

Average discharge.- 39 years, 348 second-feet.

Extremes.- Maximum discharge during year, 1,940 seeond-feet June 19 (gage height, 4.16 

reet); minimum daily, 58 second-feet Dec. 6.

1910-49: Maximum discharge, 3,760 second-feet June 9, 1920 (gage height, 5.0 feet), 

from rating curve extended above 3,300 second-feet; minimum before storage began in 

Taylor Park Reservoir, 50 second*feet on several days in August 1913 (gage height, 1.2 

feet); minimum dally, 24 second-feet Mar. IS, 1938.

Remarks.- Records excellent except those for period of ice effect, which are fair. Plow 

partly regulated by Taylor Park Reservoir (see p.Ill), 24 miles above station. Small 

diversions above station for irrigation.

Rating table, water year 1948-49, except period of Ice effect

(gags height, In feet, and discharge, In secohd-feet) 

(Shifting-control method used Mar, 18 to Apr. 4, Sept. lf-30)

1.4 65 2.6 530 

1.8 115 2.8 660 

1,9 115 3,4 1,180 

2.2 340 4.1 1,880

Discharge, in second-feet;, wsfcer year October 1848 tp September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

16 

19 

20

21 

22 

23 

24 

25

2@ 

87 

28 

29 

50 

31

Oct.

201 

176 

173 

127 

121

121 

112 

US 

115 

121

133 

13Q 

130 

133 

136

133 

130 

130 

130 

121

124 

130 

130 

130 

127

115 

118 

124 

121 

121 

121

Nov.

118 

118 

*121 

121

115

115 

121 

118 

110 

115

121 

112 

118 

127

130

136 

115 

108 

78 

80

78 

112 

118 

118 

110

105 

100 

95 

110

110

Dec.

100 

90 

*90 

70 

62

58 

80 

85 

92 

94

93 

94 

92 

92 

94

90 

94 

92 

90 

88

90 

90 

92 

94 

86

88 

94 

96 

94 

92 

98

Jan.

98 

98 

96 

94 

 92

90 

92 

94 

96 

96

96 

96 

94 

92 

88

88 

90 

92 

94 

94

94 

96 

96 

94 

94

92 

92 

90 

88 

86 

92

Peb,

*90 

92 

94 

92 

9?

90 

90 

92 

90 

92

94 

94 

92 

92

90

88 

88 

90 

90 

§Q

92 

90 

92 

90 

92

88 

90 

*9Q

Honth

Octo 

Nova

Dace

Ca

Janu 

Pebr 

(tore Apri 

»y,

June 

July 

Augu 

Sept

Wa

raber. .,..,...,...--.-.--..--..-.-....--.

Isndar year 1346 .......................

r?:;:::::;:::;:. .::::;::;.::::::.,:.:. i.,...,,.. .,,,.,....,,,,.,...,..........

ember. ....,,.....,,.,...,..,...,,.......

tep year 1948-49 ,,,..,...,,,.,,.,.....,

Mar.

92 

92 

90 

90 

92

94 

94 

94 

94 

9E

9E 

92 

90 

90 

88

90 

90 

90 

92 

92

95 

*90 

95 

92 

92

92 

92 

95 

92 

92 

90

Apr,

90 

92 

92 

108

?47

275 

279 

275 

267 

267

267 

275 

279 

27§ 

275

279. 

287 

291

291 

304

308 

332 

344 

376 

412

421 

421 

426 

445

440

Secondfoot -days

4,049 

3,353 

2,757

149,948

2,884 

2,546 

2,847 

8,740 

11,337 

29,105 

21,905 

14,049 

18,782

122,354

«ay

408 

421 

470 

465 

340

326 

308 

304 

313 

349

354 

372 

336 

291 

354

349 

313 

313 

304 

326

308 

291 

291 

322 

358

421 

445 

465 

470 

480 

470

Maximum

201 

136 

100

2,060

98 94,' 

95 

445 

480 

1,910 

1,190 

668 

901

1,910

June

435 

394 

390 

465 

435

435 

450 

465 

490 

520

520 

554 

611 

639 

632

700 

1,000 

1,460 

1,910 

1,840

1,660 

1,590 

1,670 

1,760 

1,530

1,450 

1,390 

1,310 

1,230 

1,170

fuly

1,140 

1,140 

1,190 

991 

982

946 

1,040 

1,000 

973 

1,010

919 

812 

724 

676 

611

578 

548 

525 

536 

560

542 

500 

480 

475 

510

490 

450 

416 

394 

380 

367

Aug.

354 

336 

340 

340 

358

380 

372 

380 

390 

362

304 

279 

251 

239 

318

372 

460 

515 

554 

566

566 

566 

566 

572 

572

590 

611 

604 

604 

660 

668

Sept.

708 

780 

788 

772 

772

812 

820 

820 

820 

829

883 

901 

874 

829 

829

740 

455 

465 

460 

525

548 

475 

421 

385 

376

336 

340 

331 

344 

344

>M 4m,,,. uo<>» Runoff in Mlnimun Mean acre.faet

112 131 8,030 

78 112 6,650 

58 88.9 5,470

58 410 297,400

86 93.0 5,720 

88 90.9 5,050 

88 91.8 5,650 

90 291 17,340 

291 366 22,490 

390 970 57,730 

367 707 43,450 

239 453 27,870 

331 626 37,250

58 335 242,700

* Winter discharge measurement made on this day.

Note.- Stage-dlsenarge relation affected by Ice Nov. 25 to Mar. 17 (no gage-height record Jan. 15, 

16, 23-28, Peb. 13-16, 25-27; discharge computed on basis of weather, records).
114 GUNNISON RIVER BASIN

Gunnison River near Qunnison, Colo.

Location.- Water-stage recorder, lat. 38°33', long. 106°57' ) in sec. 35, T. 50 N., R. 1 W.

a quarter of a mile downstream from Antelope Creek and 1 mile west of Qunnison. 

Drainage area.- 1,010 square miles. 

Kecoras available.- October 1910 to November 1914. October 1915 to December 1928, October

1944 to September 1949.

Average discharge.- 22 years, 857 second-feet. 

Extremes.- Maximum discharge during year, 5,190 second-feet June 19 (gage height, 5.94

feet); minimum daily, 145 second-feet Jan. 30, Feb. 1, 2, 15, 17-19, 22, 23, 25-27,

Mar. 1-3.

1910-14, 1915-28, 1944-49: Maximum discharge observed, 11,400 second-feet June 13,

1918 (gage height, 4.05 feet, site and datum then in use), from rating curve extended

above 5,000 second-feet; minimum observed, 119 second-feet Jan. 18, 1945 (discharge

measurement), but may have been less during period of no gage-height record. 

Remarks.- Recerds good except those for periods of no gage-height record, which are fair.

Flow partly regulated by Taylor Park Reservoir (see p.Ill), 37 miles above station.

Diversions above stationsfor irrigation.

Rating tables, water year 1948-49 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Nov. 13)

Oct. 1 to Dec 1 to Sept. 3O

1.4 ISO 1.4 185 2.2 485 4.0 1,970 

1.6 200 1.6 240 .2.7 77O 4.5 2,650 

1.8 265 1.9 350 3.0 1,010 5.8 4,920 

1 . 9 305

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

a

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

315 

277 

269 

237 

221

258 

244 

240 

237 

240

254 

254 

265 

265 

269

262 

258 

254 

251 

247

247 

251 

247 

240 

234

227 

227 

234 

240 

248 

248

Nov.

»244 

248 

254 

269 

248

230 

254 

248 

224 

251

269 

234 

248 

255 

260

265 

270 

240 

220 

200

200 

210 

230 

235 

235

230 

220 

210 

»220 

220

Dec.

230 

225 

210 

180 

170

170 

170 

190 

195 

200

200 

200 

195 

195 

190

190 

195

190 

190 

180

185 

190 

190 

170 

165

170 

175 

175 

175 

170 

165

Jan.

175 

175 

170 

160 

160

*160 

165 

170 

170 

175

175 

175 

175 

170 

165

160 

160 

160 

165 

170

170 

175 

175 

170 

170

160 

160 

160 

150 

145 

150

Feb.

145 

»145 

150 

155

150

150 

155 

150

150 

155

155 

155 

155 

150 

145

150 

145 

145 

145 

150

150 

145 

145 

150 

145

145 

145 

150

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948

ter year 1948-49 .......................

Mar.

145 

145 

145 

»150 

150

155

155 

160 

160 

160

160 

165 

165 

165 

165

170 

175 

180 

190 

195

190 

*188 

208 

195 

188

190 

200 

208 

202 

205 

192

Apr.

208 

210 

202 

210 

330

426 

450 

495 

505 

470

470 

510 

568 

540 

505

540 

596 

668 

722 

833

880 

956 

1,030 

1,320 

1,560

,590 

,470 

,420 

,630 

,570

Seeondfoot-days

7,760 

7,141 

5,795

325,337

5,140 

4,175 

5,421 

22,944 

41,480 

86,230 

45,459 

21,489 

18,724

271,758

Peak discharge /{base, 3,400 sec. -ft.).- June 19 (6 a.m

May

1,280 

1,320 

1,570 

1,720 

1,440

1,340 

1,200 

1,180 

1,000 

1,080

1,200 

1,300 

1,250 

1,250 

1,600

1,620 

1,660 

1,260 

1,150 

1,180

1,100 

1,080 

1,070 

1,100 

1,180

1,350 

1,420 

1,530 

1,650 

1,720 

1,680

Maximum

315 

270 

230

5,360

175 

155 

208 

1,630 

1,720 

5,000 

2,590 

784 

833

5,000

June

1,520 

1,350 

1,340 

1,860 

1,740

1,690 

1,750 

1,980 

1,970 

2,240

2,460 

2,660 

2,940 

2,830 

2,770

2,820 

3,420 

4,460 

5,000 

4,680

4,280 

3,990 

3,970 

4,280 

3,470

3,270 

3,130 

2,980 

2,780 

2,600

July

2,590 

2,520 

2,400 

2,360

2,200

2,020- 

2,240 

2,080 

2 , 000 

2,020

1,890 

1,730 

1,540 

1,420 

1,260

1,130 

1,070 

1,000 

1,060 

1,100

1,060 

965 

912 

974 

1,090

983 

888 

791 

752 

716 

698

Aug.

686 

668 

656 

644 

638

668 

722 

758 

758 

728

644 

584 

540 

500 

540

579 

662 

758 

784 

784

770 

764 

758 

752 

728

746 

746 

734 

728 

740 

722

Minimum Mean

221 250 

200 238 

165 187

165 889

145 166 

145 149 

145 175 

202 765 

1,000 1,338 

1,340 2,874 

698 1,466 

500 693 

374 624

145 745

Sept.

752 

784 

777 

764 

764

770 

758 

752 

746 

752

791 

833 

812 

784 

777

734

505 

500 

495 

535

562 

520 

470 

426 

408

386 

382 

374 

399 

412

Runoff In 

acre-feet

15,390 

14,160 

11,490

645,400

10,200 

8,280 

10,750 

45,510 

82,270 

171,000 

90,170 

42,620 

37,140

539,000

) 5,190 sec. -ft.

Winter discharge measurement made on this day. 

Note.- No gage-height record Nov. 14 to Mar. 21 fstage-discharge relation affected by loe during 

most of period), May 16, 17, 19, 20, May 24 to June 1; discharge computed on basis of 4 discharge 

measurements, weather records, and records for nearby stations.
GUNNISON RIVER BASIN 115

Gunnison River at lola, Colo.

Location.- Water-stage recorder, lat. 38°29' , long. 107°06', In NW£ sec. 28, T. 49 N., R. 

aw., 1,000 feet upstream from bridge on State Highway 149 and 3,000 feet northeast of 

lola. Datum of gage is 7,434.63 feet above mean sea level, datum of 1929.

Drainage area.- 2,490 square miles.

Records available.- October 1899 to November 1903, April 1938 to September 1949.

Average discharge.- 15 years, 884 second-feet.

Extremes.- Maximum discharge during year, 7,140 second-feet June 19 (gage height, 4.89 

feet); minimum daily, 220 second-feet Jan. 30.

1899-1903, 1938-49: Maximum discharge, 7,140 second-feet May 22, 1948, June 19, 1949; 

maximum gage height, 5.11 feet May 22, 1948; minimum daily discharge prior to construction of Taylor Park Reservoir, 221 second-feet at times July to October 1902; 

minimum daily discharge, 130 second-feet Feb. 19, 1939.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. Flow partly regulated by Taylor Park Reservoir (see p. 111). Diversions above station for irrigation.

Rating table, water year 1948-49, except period of lee effect 

(gage height, In feet, and discharge, in second-feet) 

(Shifting-control method used Mar. 30 to Apr. 19)

1.0 280

1.1 340

1.3 510

1.6 820

2.0 1,320

2.7 2,350

3.3 3,510

4.8 6,920

Discharge, In second-feet, water year Oetober 194B to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

447 

360 

364 

340 

323

348 

340 

334 

340 

340

356 

356 

373 

373 

372

373 

364 

356 

356 

356

356 

356 

356 

356 

348

34* 

334 

340 

356 

364 

364

Nov.

*364 

372 

372 

- 360 

340

335 

350 

355 

340 

340

350 

350 

350 

330 

330

330 

340 

330 

300 

380

390 

310 

310 

320 

330

310 

300 

285 

»280 

290

Dec.

310

280 

280 

240 

230

225 

245 

275 

275 

280

280 

280 

370 

375 

370

260 

270 

260 

360 

260

260 

260 

270 

250 

330

340 

260 

270 

250 

250 

260

Jan.

270 

270 

*250 

230 

225

235 

345 

355 

365 

270

370 

370 

270 

260 

250

235 

235 

240 

240 

260

260 

275 

280 

275 

265

£50 

255 

250 

235 

220 

*230

Feb.

225 

235 

250 

250 

245

235 

240 

250 

240 

245

260 

360 

355 

250 

240

345 

240 

235 

230 

340

240 

240 

245 

250 

245

245 

350 

250

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Mar.

250 

240 

245 

250 

260

360 

360 

360 

360 

270

270 

270 

370 

375 

385

310 

330 

330 , 

350 

360

360 

370 

*360 

350 

340

350 

340 

360 

390 

413 

388

Apr.

372 

388 

364 

380 

*483

640 

690 

776 

787 

776

754 

844 

952 

952 

938

964 

1,040 

1,160 

1,330 

1,350

1,400 

1,470 

1,600 

1,880 

3,190

3,390 

2,180 

2,080 

2,330 

2,300

Secondfoot-days

11,057 

9,833 

8,125

432,463

7,840 

6,835 

9,645 

35,530 

66,200 

124,390 

63,530 

28,302 

21,013

392,200^

May

1,960 

1,900 

3,180 

3,390 

3,140

2,040 

1,940 

1,820 

1,710 

1,700

1,800 

2,000 

2,040 

2,030 

2,370

3,490 

3,510 

3,190 

3,080 

3,100

1,960 

1,830 

1,780 

1,780 

1,930

3,250 

2,420 

3,570 

2,710 

3,810 

3,790

Maximum

447 

373 

310

6,840

280 

360 

413 

2,320 

2,810 

6,970 

3,290 

1,070 

916

6,970

June

2,530 

2,22O 

2,010 

2,640 

2,620

2,550 

2,640 

3,150 

3,150 

3,450

3,820 

4,020 

4,320 

4,300 

4,210

4,280 

4,790 

6,020 

6,970 

6,700

6,180 

5,600 

5,420 

5,920 

4,940

4,540 

4,190 

3,990 

3,710 

3,410

July

3,290 

3,170 

3,090 

3,070 

2,870

2,670 

2,930 

2,930 

2,910 

3,910

2,710 

2,510 

2,190 

2,000 

1,820

1,640 

1,540 

1,470 

1,470 

1,560

1,540 

1,450 

1,360 

1,450 

1,590

1,520 

1,360 

1,330 

1,150 

1,090 

1,040

Minimum

322 

280 

225

225

220 

225 

240 

364 

1,700 

2,010 

1,040 

710 

438

220

Aug.

1,020 

988 

988 

1,000 

976

988 

1,030 

1,060 

1,070 

1,040

928 

844 

754 

710 

731

765 

844 

964 

976 

976

940 

916 

916 

904 

880

904 

880 

844 

844 

844 

798

Mean

357 

338 

262

1,182

253 

344 

311 

1,184 

2,135 

4,143 

2,049 

913 

700

1,075

Sept.

820 

844 

868 

856 

844

856 

844 

844 

820 

809

880 

916 

904 

856 

856

844 

600 

570 

550 

590

620 

600 

540 

501 

474

456 

438 

438 

474 

501

Runoff In 

acre-feet

21,930 

19,500 

16,120

857,800

15,550 

13,560 

19,130 

70,470 

131,300 

246,500 

126,000 

56,140 

41,680

777,900

ec .-it. .

* Winter discharge measurement made on this day. 

Note.- Stage-discharg" w^io*-* -* ^-ff^fi-at/^ +.IT 1^= »

nter discharge measurement made on this day.

..-._.- Stage-discharge relation affected by Ice Nov. 4 to Mar. 29 (no gage-height record Dec. 

Mar. 22j discharge computed on basis of 2 discharge measurements, weather records, and records f 

nearby stations).

1 to
lie OUNNISON RIVER BASIN

Gunnison River below Gunnison tunnel, Colo.

location.- Water-stage reflorder, lat. 38°32 I , long. 107°39', In NW£ sec. 10, T. 49 N., R. 

7 w.» a quarter of a mile downstream from Gunnison tunnel and 12 miles northeast; of 

Mdntrose. Saturn of gage i§ 6,627.06 feet above mean sea level, datum of 1929.

DgainMei agea..- 3,986 square miles.

Heograg,av*Afaglfi * January 1943 to September 1949. April 1905 to September 1911 at site 

above Bast 'Portal. Records alnoe Jan. 20, 1943, equivalent to earlier records If flow 

through Gunnlson tunnel is added to flow past station.

Extremes.- Maximum discharge during year, 12,400 eecond-feet June 19 (gage height, 11.72 

reel;); minimum daily, 10 second-feet Oct. 3-6.

1905-11, 1943-49: Maximum discharge recorded, 15,000 second-feet (discharge measurement) Jane 14, 1906; .minimum daily prior to construction of Qunnison tunnel not determined; minimum daily recorded, 5 second-feet on several days in September and October 

1944,

Bemajfigl i- Records excellent except those for periods of Ice effect or partly estimated 

gage-height record, which are fair. Record of diversion through Gunnison tunnel during 

water year 1948*49 is published below:

Month

October 

November 

March 

April 

May

Runoff in 

acre-feet

29,720 

13,640 

2,650 

23,140 

57,880

Month

June 

July 

August 

September

Runoff in 

acre-feet

38,180 

53,570 

59,580 

44,960

Coope 

wa

ration..- Record of diversion through Gunnison tunnel furnished by Uncompahgre Valley 

Users Association.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 ' 

27 

28 

29 

30 

31

Oct.

fU 

f!2 

flO 

flO 

flO

flO 

f33 

59 

64 

74

60 

60 

81 

*160 

193

187 

175 

166 

169 

178

175 

169 

160 

160 

151

145 

133 

151 

178 

175 

187

Nov.

164 

17S 

193 

236 

20S

124 

175 

215 

130 

90

250 

230 

170 

185 

200

*410 

710 

590 

440 

570

560 

560 

560 

550 

540

520 

500 

470 

460 

480

Dec.

S10 

510 

SOO 

490 

480

480 

490 

490 

490 

500

520 

530 

500 

*490 

480

470 

460 

450 

440 

440

450 

470 

490 

450 

370

390 

400 

430 

440 

430 

420

Jan.

400 

350 

300 

270 

250

270 

290 

310 

330 

350

370 

380 

390 

380 

370

370 

350 

350 

*350 

370

390 

420 

430 

430 

420

410 

390 

370 

360 

360 

350

Feb.

340 

350 

360 

360 

360

360 

360 

360 

370 

380

390 

400 

400 

400 

390

380 

380 

*380 

380 

390

390 

390 

400 

430 

450

430 

420 

410

Month

Goto 

Hove 

Dece

Ca

Janui 

Pebn 

Marc 

Aprl

UBV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ber year 1948-49 .......................

Mar.

410 

420 

440 

450 

450

450 

470 

460 

460 

450

440 

430 

420 

420 

430

450 

480 

520 

520 

510

498 

444 

452 

466 

439

439 

444 

*545 

555 

498 

502

Apr.

511 

545 

530 

545 

615

840 

945 

1,080 

1,100 

1,100

1,020 

1,160 

1,390 

1,440 

1,370

1,370 

1,470 

1,720 

1,87O 

1,910

1,990 

2,120 

2,390 

2,990 

3,470

3,830 

3,750 

3,490 

3,830 

3,860

Secondfoot -days

3,509 

10,682 

14,460

628,423

11,130 

10,810 

14,362 

54,251 

116,160 

220,230 

89,278 

12,452 

6,399

563,723

Hay

3,130 

2,930 

3,620 

4,160 

3,960

3,590 

3,200 

2,810 

2,580 

2,590

2,890 

3,380 

3,590 

3,490 

4,350

4,710 

4,320 

3,980 

3,710 

3,690

3,280 

2,920 

2,880 

3,090 

3,540

4,440 

4,890 

4,890 

5,050 

5,360 

5,140

Maximum

193 

710 

530

12,600

430 

450 

555 

3,860 

5,360 

12,100 

5,630 

681 

1,040

12,100

June

4,660 

3,920 

3,340 

3,850 

4,240

4,300 

4,4SO 

5,220 

5,110 

5,460

6,60O 

7,240 

8,210 

8,560 

8,360

8,440 

9,360 

10,800 

12,100 

11,800

11,100 

9,800 

9,270 

9,990 

8,850

7,970 

7,440 

7,120 

6,600 

6,040

July

5,63O 

5,280 

5,140 

4,960 

4,630

4,250 

4,460 

4,350 

4,200 

4,470

4,280 

3,830 

3,310 

2,890 

2,590

2,240 

2,040 

1,880 

1,770 

1,940

1,890 

1,710 

1,490 

1,530 

1,730

1,630 

1,360 

1,150 

1,000 

868 

780

Minimum

10 

90 

370

10

250 

340 

410 

511 

2,580 

3,340 

780 

154 

18

10

Aug.

681 

640 

625 

635 

565

565 

570 

630 

681 

681

580 

422 

322 

250 

190

219 

236 

378 

394 

382

342 

310 

286 

292 

272

264 

275 

222 

199 

190 

154

Mean

113 

356 

466

1,717

359 

386 

463 

1,808 

3,747 

7,341 

2,880 

402 

213

1,544

Sept.

136 

184 

205 

178 

169

184 

178 

157 

139 

133

166 

258 

250 

230 

493

1,040 

824 

346 

196 

91

96 

160 

107 

66 

51

66 

59 

f!8 

83 

136

Runoff In 

acre-feet

6,960 

21,190 

28,680

1,246,000

22,080 

21,440 

28,490 

107,600 

230,400 

436,800 

177,100 

24, 700 

12,690

1;118,000

Peak discharge (base, 6,000 sec. -ft.).- June 19 (7 a.m.) 12,400 sec. -ft.

Winter discharge measurement made on this day.

f Discharge computed from partly estimated gage heights.

Note.- Stage-discharge relation affected by Ice Nov. 7 to Mar. 20 (no gage-height record Jan. 4-12; 

discharge computed on basis of 5 discharge measurements, weather records, and records for nearby 

stations).
GUNNISON RIVER BASIN 117

Gunnison River near Grand Junction, Colo.

Location.- Water-stage recorders on river and canal, lat. 39°02', long. 1080 34', In NW£ 

sec. 35, T. IS., R. 1 W. Ute meridian, half a mile downstream from point of diversion 

of Redlands power canal and 2 miles upstream from mouth and Grand Junction. Datum of 

river gage Is 4,555.14 feet above mean sea level, datum of 1929.

Drainage area.- 8,020 square miles.

Records available.- October 1894 to December 1895 (gage heights only), October 1896 to 

septemoer 1899 (at site near mouth), October 1901 to September 1906 (at site at Whitewater), October 1916 to September 1949 (at present site).

Average discharge (river and power canal).- 41 years (1896-99, 1901-6, 1916-49), 2,780 

secona-reetr;

Extremes (combined flow of river and power canal).- Maximum discharge during year, 19,300 

second-reet June 19; minimum daily, t>au second-feet Jan. 5.

1917-30, 1933-49: Maximum discharge observed, 35,700 second-feet May 23, 1920 

(gage height, 14.95 feet), from rating curve extended above 21,400 second-feet: minimum 

dally, 106 second-feet July 20, 1934.

Remarks.- Records excellent except those for Jan. 4 to Mar. 3, July 13 to Aug. 9, which 

are fair. Diversions above station for irrigation. Combined flow of river and Redlands power canal minus about 40 second-feet diverted during Irrigation season represents entire flow that enters Colorado River from 3unnison River Basin. Records Include flow of power canal. Records of chemical analyses and water temperatures for 

the water year 1949 are given In Water-Supply Paper 1163.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,130 

1,100 

1,030 

950 

923,

927 

975 

995 

965 

945

923 

919 

909 

909 

880

8,98 

907 

903 

913 

909

905 

899 

877 

870 

860

820 

804 

836 

976 

958 

924

Nov.

946 

1,040 

1,010 

1,050 

1,110

1,120 

1,070 

1,030 

1,130 

1,150

1,140 

1,280 

1,370 

1,280 

1,260

1,270 

1,340 

1,470 

1,300 

1,160

1,150 

1,250 

1,180 

1,220 

1,270

1,250 

1,230 

1,060 

1,120 

1,090

Dec.

1,110 

1,260 

*1,240 

1,210 

1,260

1,120 

1,140 

1,130 

1,150 

1,120

1,190 

1,180 

1,320 

1,280 

1,200

1,130 

1,120 

1,100 

1,070 

1,060

1,080 

1,110 

1,160 

1,270 

1,040

895 

995 

1,020 

1,070 

1,130 

966

Jan.

950 

1,020 

988 

800 

520

*560 

560 

600 

640 

700

730 

770 

860 

920 

820

860 

820 

810 

820 

820

850 

960 

1,000 

1,000 

950

940 

940 

880 

830 

820 

800

Feb.

7.60 

820 

820 

840 

860

840 

840 

830 

820 

880

920 

960 

980 

1,000 

1,000

950 

910 

920 

960 

1,000

1,000 

1,000 

1,010 

*1,020 

1,140

1,180 

1,100 

1,080

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay.

June 

Julj 

Augvi 

Sept

We

lendar year 1948

ter year 1948-49 .......................

Mar.

1,060 

1,020 

1,010 

1,120 

1,090

1,120 

1,100 

*1,170 

1,160 

1,090

1,060 

1,040 

1,040 

1,020 

999

974 

1,030 

1,130 

1,160 

1,180

1,200 

1,260 

1,270 

1,220 

1,210

1,110 

1,070 

1,060 

1,160 

1,270 

1,210

Apr.

1,180 

1,260 

1,290 

1,280 

1,280

1,320 

1,600 

1,940 

2,330 

2,200

2,150 

2,010 

2,330 

2,740 

2,660

2,520 

2,740 

3,300 

3,940 

4,060

4,520 

4,940 

5,830 

6,950 

8,350

9,030 

9,230 

8 i090 

8,410 

9,180

Secondfoot-days

28,739 

35,346 

35,126

1,190,530

25,538 

26,440 

34,613 

118,660 

242,620 

328,280 

133,420 

32,713 

26,937

1,068,432

May

8,290 

7,040 

7,900 

9,520 

9,340

7,960 

7,180 

6,100 

5,310 

5,270

6,470 

7,570 

8,350- 

7,860 

8,640

10,300 

9,520 

8,500 

8,020 

7,660

7,420 

6,420 

5,980 

6,260 

6,920

7,880 

8,700 

8,860 

9,040 

9,220 

9,120

Maximum

1,130 

1,470 

1,320

21,000

1,020 

1,180 

1,270 

9,230 

10,300 

18,500 

7,560 

1,640 

1,620

18,500

June

8,360 

7,370 

6,070 

5,510 

6,650

6,870 

7,150 

7,570 

8,400 

8,380

9,310 

10,600 

11,600 

12,500 

12,200

12,000 

12,700 

14,900 

18,400 

18,500

17,000 

15,200 

13,600 

14,400 

13,900

11,300 

10,700 

9,890 

9,030 

8,220

July

7,560 

7,240 

7,480 

7,450 

7,350

6,670 

6,550 

6,700 

6,250 

6,180

6,560 

b,760 

5,400 

4,800 

4,150

3,600 

3,000 

2,750 

2,480 

2,650

2,550 

2,240 

2,000 

2,120 

2,350

2,420 

2,300 

2,000 

1,820 

1,600 

1,440

Minimum

804 

946 

895

582

520 

760 

974 

1,180 

5,270 

5,510 

1,440 

696 

665

520

Aug.

1,320 

1,280 

1,280 

1,270 

1,240

1,180 

1,220 

1,400 

1,640 

1,550

1,480 

1,300 

1,180 

1,060 

959

844 

825 

787 

753 

857

831 

802 

772 

1,210 

892

892 

807 

818 

807 

761 

696

Mean

927 

1,178 

1,133

3,253

824 

944 

1,117 

3,955 

7,826 

10,940 

4,304 

1,055 

898

2,927

Sept.

665 

668 

681 

700 

732

745 

769 

769 

759 

770

839 

888 

963 

1,200 

1,200

1,240 

1,620 

1.430 

3,080 

941

915 

880 

868 

872 

830

799 

749 

718 

845 

802

Runoff In 

acre-feet

57,000 

70,110 

69,670

2,361,000

50,650 

52,440 

68,650 

235,400 

481,200 

651,100 

264,600 

64,890 

53,430

2,119,000

Peak discharge (base, 10,000 sec. -ft.).- Hay 16 (5 p.m.) 10,800 sec. -ft.; June 19 (11:30 p.m.)

19,300 sec.-ft.; June 24 (9[pVm.; 16,000 sec.-ft.

* Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by Ice Jan. 4 to Mar. 3. Ho «jge-helght record July 13 

to Aug. 9; discharge computed on basis of records for Qunnlaon River below Qunnlson tunnel and Uncompahgre River at Delta.
118 GUNNISON RIVER BASIN

East River near Crested Butte, Colo.

location.- Water-stage recorder, lat. 38°52', long. 106°54', in Pffi£ sec. 5, T. 14 S., R. 85 

w., at highway bridge, 1.2 miles downstream from Brush Creek and 4| miles east of 

Crested Butte.

Drainage area.- 89.2 square miles.

Records available.- April 1941 to September 1949 (no winter records in 1942). (April to 

HovemDer iy4U ror station 1 mile downstream in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 1,160 second-feet June 17 (gage height, 2.71 

reetJ; minimum daily, 17 second-feet Feb. 16-20, 22-24.

1941-49: Maximum discharge, 1,270 second-feet May 19, 1948 (gage height, 2.88 feet); 

minimum daily, 13 second-feet Mar. 5-7, Mar. 17 to Apr. 2, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Several small diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

52 

48 

46 

45

67

61 

52 

54 

56 

58

56 

53 

51 

51 

53

49 

45 

45 

46 

45

43 

40 

40 

40 

39

39 

38 

42 

40 

44 

41

Nov.

39 

*38 

40 

37 

32

b35 

b36 

b31 

b29 

31

34 

b30 

b30 

b30 

b30

b31 

b32 

b31 

29 

31

30 

30 

30 

30 

30

30 

30 

24 

27 

29

Dec.

*30 

29 

29 

29 

28

28 

27 

27 

28 

28

28 

28 

27 

26 

25

25 

25 

25 

25 

27

28 

27 

25 

24 

22

23 

26 

25 

25 

25 

24

Jan.

25 

27 

25 

23 

20

21 

21 

22 

23 

24

24 

24 

24 

24 

23

20 

18 

18 

19 

19

20 

20 

21 

21 

20

20 

20 

19 

18 

18 

18

Feb.

18 

18 

19 

19 

18

18 

19 

20 

18 

19

20 

20 

19 

18 

18

17 

17 

17 

17 

17

18 

17 

17 

17 

18

18 

18 

18

Month

Goto 

Hove

Deee

Ca

Janu 

Pebr 

Marc 

Aprl

MA v

June 

July 

Augu 

Sept

Ha

lendar year 1948 

ftry

h. ......................................

ter year 1948-49 .......................

Mar.

*18 

19

18 

18 

18

18 

19 

20 

19 

20

20 

20 

19 

19 

20

20 

21 

20 

20 

20

21 

20 

22 

21 

20

20 

20 

21 

20 

20 

20

Apr.

21 

21 

21 

20 

20

*22 

22 

26 

26 

25

26 

28 

29 

30 

34

38 

52 

61 

76 

86

89 

104 

136 

189 

246

254 

220 

226 

274 

258

Secondfoot-days

1,479 

946 

818

61,454

659 

507 

611 

2,680 

10,113 

19,943 

10,231 

2,679 

1,425

52,091

May

206 

242 

325 

330 

274

254 

220 

198 

206 

258

282 

306 

294 

330 

416

395 

345 

302 

294

315

274 

306 

278 

320 

395

476 

446 

452 

464 

476 

434

Maximum

67 

40 

30

1,140

27 

20 

22 

274 

476 

1,120 

632 

130 

67

1,120

June

380 

310 

294 

390 

325

302 

325 

405 

446 

542

566 

732 

828 

780 

804

852 

999 

1,120 

1,020 

963

954

900 

852 

764 

676

716 

692 

692 

668 

646

July

Minimum

38 

24 

22

17

18 

17 

18 

20 

198 

294 

138 

52 

38

17

632 

597 

578 

566 

542

470 

488 

470 

446 

428

380 

350 

320 

298 

274

254

262 

258 

266 

262

226 

198 

195 

250 

262

198 

171 

160 

150 

142 

138

Aug.

130 

122 

124 

118 

116

113 

115 

116 

120 

109

100 

94 

89 

86 

83

80 

80 

82 

72 

68

65 

64 

62 

64 

62

62 

60 

58 

57 

56 

52

Mean

47.7 

31.5 

26.4

168

21.3 

18.1 

19.7 

89.3 

326 

665 

330 

86.4 

47.5

143

Sept.

51 

54 

59 

54 

50

47 

46 

44 

45 

52

57 

67 

56 

54 

49

46 

44 

43 

41 

40

40 

40 

39 

38 

38

39 

39 

40 

49 

64

Runoff In 

acre-feet

2,930 

1,880 

1,620

121,900

1,310 

1,010 

1,210 

5,320 

20,060 

39,560 

20,290 

5,310 

2,830

103,300

Peak discharge (base, 87O see.-ft.).- June 17 (12 p.m.) 1,16O see.-ft.

» Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- Ho gage-height record Nov. 10, 11, Nov. 19 to Apr. 5; discharge computed on basis of 2 discharge measurements at station, 2 discharge measurements 3 miles downstream, weather records, and 

records for nearby stations.
GUNNISON RIVER BASIN 

East River at Almont, Colo.

119

Location.- Water-stage recorder, lat. 39°40', long. 106°51', in sec. 22, T. 51 N., R. 1 

&., at Almont, 200 feet upstream from bridge on State Highway 135 and 400 feet upstream from mouth. Datum of gage is 8,008.29 feet above mean sei level, datum of 

1929.

Drainage area.- 295 square miles.

Records available.- April to October 19.05, July 1910 to April 1922, October 1934 to September 1949.

Average discharge.- 22 years (1910-13, 1916-20, 1934-49), 351 second-feet.

Extremes.- Maximum discharge during year, 2,660 second-feet June 18 (gage height, 4.63 

reet); minimum daily, 54 second-feet Jan. 29, Feb. 18, Mar. 14.

1905, 1910-22, 1934-49: Maximum discharge observed, 6,500 second-feet June 15, 

1921 (gage height, 6.6 feet, site and datum then in use), from rating curve extended 

above 3,000 second-feet; minimum daily, 19 second-feet Aug. 13, 1913.

Remarks.- Records excellent except those for periods of ice effect, which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 ' 7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

80 

77 

76 

76 

82

98 

91 

91 

93 

94

94 

105 

114 

118 

122

120 

118 

118 

118 

118

116 

113 

114 

112 

110

109 

107 

112 

114 

120 

120

Nov.

118 

114 

*114 

114 

107

94 

105 

103 

90 

107

112 

94 

92 

90 

90

92 

100 

90 

85 

88

86 

84 

84 

86 

82

80 

80 

76 

60 

64

Dec.

70 

69 

*68 

66 

66

66 

64 

64 

66 

66

66 

66 

64 

62 

62

64 

62 

62 

62 

64

64 

66 

66 

62 

56

60

64 

66 

64 

62 

60

Jan.

60 

64 

66 

68 

*62

56 

60 

62 

64 

64

64 

64 

64 

64 

62

60 

58 

56 

58 

60

62 

62 

62 

62 

60

60

58 

56 

54 

56 

56

Feb.

"58

58 

60 

60 

60

58 

60 

64 

60 

60

62

60 

58 

56 

56

56 

56 

54 

56 

56

58 

58 

58 

60 

60

60 

60 

*58

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Here 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Mar.

58 

60 

60 

62 

62

61 

59 

59 

56 

57

57 

57 

57 

54 

57

59 

62 

57. 

59 

62

64 

*61 

67 

64 

60

60 

64 

65 

64 

62 

59

Apr.

62 

64 

62 

62 

62

72 

84 

100 

102 

98

96 

114 

141 

132 

121

121 

174 

215 

257 

316

326 

356 

448 

595 

746

758 

668 

640 

776 

740

Secondfoot-days

3,255 

2,781 

1,988

138,184

1,884 

1,640 

1,865 

8,508 

25,866 

46,993 

19,213 

6,612 

2,608

123,213

May

590 

610 

812 

923 

788

746 

640 

575 

550 

620

704 

788 

740 

800 

1,040

1,050 

902 

794 

728 

788

692 

645 

645 

710 

836

1,080 

1,160 

1,140 

1,240 

1,280 

1,240

Maximum

122 

118 

70

2,920

68 

64 

67 

776 

1,280 

2,570 

1,140 

302 

126

2,570

June

1,080 

869 

806 

1,160 

1,030

988 

1,020 

1,190 

1,240 

1,450

1,590 

1,770 

1,910 

1,750 

1,760

1,790 

2,040 

2,570 

2,480 

2,260

2,100 

1,960 

1,890 

1,870 

1,540

1,500 

1,420 

1,400 

1,330 

1,230

Minimum

July

76 

60 

56

56

54 

54 

54 

62 

550 

806 

275 

139 

72

54

1,080 

1,140 

1,050 

1,060 

995

916 

965 

862 

818 

812

746 

680 

615 

560 

520

480 

472 

452 

464 

464

436 

400 

380 

412 

452

412 

372 

330 

305 

288 

275

Aug.

266 

254 

245 

242 

236

248 

285 

302 

292 

285

266 

251 

236 

221 

212

201 

204 

224 

204 

192

181 

174 

168 

168 

161

158 

156 

151 

146 

144 

139

Mean

105 

92.7 

64.1

378

60.8 

58.6 

60.2 

284 

834 

1,566 

620 

213 

86.9

338

Sept.

136 

130 

119 

119 

121

104 

84 

82 

77 

80

87 

90 

82 

84 

82

77 

78 

80 

80 

74

72 

72 

72 

72

74

75

75 

72 

78 

80

Runoff in 

acre-feet

6,460 

5,520 

3,940

274,100

3,740 

3,250 

3,700 

16,880 

51,300 

93,210 

38,110 

13,110 

5,170

244,400

Peak discharge (base, 1,600 sec. -ft.).- June 18 (8 D.m.) 2,660 sec. -ft.

Winter discharge measurement made on this day. 

Mote.- Stage-discharge relation affected by ice Nov. 13-17, Nov. 20 to Mar-. 3.

839921 O - 51 - 9
120 GUNNISON RIVER BASIN 

Slate River near Crested Butte, Colo.

Location.- Water-stage recorder, lat. 38°52', long. 106°58', in sec. 2, T. 14 S., R. 86 W., 

hair a mile downstream from Coal Creek and 1 mile east of Crested Butte. Datum of gage 

is 8,826.88 feet above mean sea level, datum of 1929.

Drainage area.- 69.0 square miles.

Records available.- April 1941 to September 1949. (April to November 1940 in files of 

Bureau or Reclamation.) .

Extremes.- Maximum discharge during year, 1,090 second-feet.June 18 (gage height, 4.07 

reetj; minimum daily, 8.0 second-feet Jan. 30, 31.

1941-49: Maximum discharge observed, 1,240 second-feet May 13, 1941; maximum gage 

height, 4.13 feet May 22, 1948; minimum daily discharge, 3.9 second-feet Nov. 26, 1942.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Discharge, In second-feet, water year October 1948 to September 1949

Oct.

19 

18

17 

17 

28

28 

23 

23 

23 

25

25 

24 

22 

22 

23

22 

20 

18 

19 

17

17 

17 

16 

16 

15

15 

15 

17 

17 

19 

18

Nov.

17 

*17 

18 

18 

b!7

b!6 

16 

b!4 

13 

12

14 

15 

b!2 

b!2 

b!2

12 

13 

12 

11 

12

12 

11 

11 

12 

11

11 

11 

8.5 

9.0 

9.5

Dec.

*lo 

11 

11 

10 

10

10 

9.5 

11 

9.0 

9.0

10

11 

11 

11 

11

11 

11 

11 

11 

11

12 

12 

12 

12 

9.0

9.5

10 

10 

10 

10 

10

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebri 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

Jan.

11 

13 

13 

12 

*11

11 

11 

11 

11 

11

12 

12 

12 

12 

12

11 

10 

10 

10 

10

11 

11 

11 

11 

11

11 

11 

9.5 

9.0 

8.0 

8.0

Feb.

*8.5 

9.0 

9.5 

9.5 

9.5

9.0 

9.5

10 

10 

10

10 

10 

10 

9.5 

9.5

9.5 

9.0 

9.0 

9.0 

9.0

9.0 

9.5 

9.5 

9.5 

9.5

9.5 

9.5 

9.5

.endar year 1948 

iry

ter year 1948-49 ............

Peak discharge (base, 950 sec. -ft.).- June

Mar.

 9.5 

9.5 

9.0 

9.0 

9.0

9.5

10 

10 

10 

10

11 

11 

11 

11 

11

12 

13 

13 

13 

13

14 

15 

15 

15 

14

15

16 

16 

16 

15 

15

Apr.

16 

17 

17 

19 

22

*23 

24 

26 

24 

25

27 

32 

42 

37 

39

48 

65

97 

119 

153

155 

168 

228 

327 

400

386 

335 

327 

396 

360

May

279 

311 

430 

490 

396

351 

283 

244 

240 

283

339 

425 

435 

510 

627

572 

450 

378 

355 

378

315 

295 

319 

391 

495

638 

666 

666 

726 

702 

666

fSESS. 

615 28 

389.0 18 

326.0 12

55,638.8 1,090

337.5 13 

264.5 10 

380.5 16 

3,954 400 

13,655 726 

21,791 1,080 

7,122 490 

1,215 72 

579 35

50,628.5 1,080

18 (11 a.m.) 1,090 sec.

June

572 

425 

396 

540 

525

525

530 

622 

678 

780

858 

900 

876 

858 

864

882 

970 

1,080 

1,030 

956

914 

846 

846 

798 

632

638 

600 

600 

545 

505

Minimum

July

490 

490 

460 

435 

391

360 

360 

323 

299 

311

261 

240 

222 

204 

183

170 

165 

160 

162 

155

143 

131 

129 

136 

158

129 

112 

100 

90 

81 

72

Aug.

68 

61 

59 

57 

57

68 

72 

61 

70 

63

50 

43 

37 

36 

33

32 

33 

33 

2fl 

26

24

23 

22 

23 

21

21 

20 

20 

19 

18 

17

Sept.

18 

20 

24 

22 

18

18 

17 

16 

16 

21

29 

35 

25 

28 

22

18 

17 

16 

15

15

15 

15 

14

14 

14

14 

15 

14 

19 

35

Mean Runoff in 116811 acre -feet

15 19.8 1,220 

8.5 13.0 772 

9.0 10.5 647

8.4 152 110,400

8.0 10.9 669 

8.5 9.45 525 

9.0 12.3 755 

16 132 7,840 

240 440 27,080 

396 726 43,220 

72 230 14,130 

17 39.2 2,410 

14 19.3 1,150

8.0 139 100,400

-ft.

Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 18 to Apr. 5 (stage-discharge relation affected by Ice during 

most of periodj; discharge computed on basis of 4 discharge measurements, weather records, and records for stations on nearby streams.
QUNNISON RIVER BASIN 121

Cement Creek near Crested Butte, Colo.

Location.- Water-stage recorder, lat. 38°50', long. 106°50', in sec. 13, T. 14 S., R. 85 

W., near Pioneer Resort, It miles upstream from Ward Gulch and 9 miles southeast of 

Crested Butte.

Drainage area.- 27.7 square miles.

Records available.- November 1910 to November 1913, April 1941 to September 1949. (April 

to September 1940 in files of Bureau of Reclamation.)

Average discharge.- 11 years (1910-13, 1941-49), 38.0 second-feet.

Extremes.- Maximum discharge during year, 290 second-feet June 17 (gage height, 3.00 feet), 

rrom rating curve extended above 210 second-feet; minimum daily, 10 second-feet Nov. 9, 

Dec. 25, Jan. 17-19, 28-30.

1910-13, 1941-49: Maximum discharge, 358 second-feet June 2, 1948 (gage height, 3.47 

feet), from rating curve extended above 255 second-feet by logarithmic plotting; minimum 

observed, 6 second-feet at times in January and February 1913.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Rating tables, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Mar 31 Apr. 1 to Sept. 30

1.3

1.4

1.5

1.3 14

1.4 18

1.6 30

1.7 37

1.9 56

2.0 68

2.3 125

2.8 240

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

20

31 

22 

33 

34

25

26 

27 

28 

29 

30 

31

Oct.

19 

18 

18 

18 

22

20 

20 

20 

20 

20

19 

18 

18 

18 

18

18 

18 

18 

19 

18

18 

18 

18 

18 

18

18 

18 

19 

18 

19 

19

Nov.

18 

*17 

16 

16 

16

b!4 

13 

12 

10 

14

15 

15 

15 

16 

16

16 

16 

16 

16 

b!4

b!4 

b!4 

b!4 

b!4 

b!4

b!3 

b!3 

13 

13 

13

Dec.

*13 

13 

13 

13 

13

13 

13 

13 

13 

13

13 

13 

13 

13 

13

13 

13 

13 

13 

12

12 

12 

12 

12 

10

11 

11 

11 

11 

11 

11

Jan.

12 

12 

12 

11 

*11

11 

11 

11 

11 

11

12 

12 

12 

12 

12

11 

10 

10 

10 

11

11 

12 

12 

12 

12

12 

11 

10 

10 

10 

11

Feb.

*11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ter year 1948-49 .......................

Mar.

*11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

12 

12 

12

12

12 

12 

11 

11

11

11 

11 

11 

-11 

11 

11

Apr.

11 

11 

11 

11 

12

12 

12 

»12 

12 

11

12 

13

14 

13 

13

14 

15 

16 

17 

19

19 

22 

26 

32 

36

37 

35 

36 

42 

40

Secondfoot -days

578 

436 

383

15,067.6

348 

308 

347 

586 

2,390 

4,824 

2,095 

913 

621

13,829

May

37 

40 

50 

54 

53

51 

47 

44 

45 

52

55 

56 

58 

70 

90

86 

81 

79 

82 

88

82 

79 

82 

94 

109

119 

121 

123 

123 

125 

115

Maximum

22 

18 

13

292

12 

11 

12 

42 

125 

240 

119 

37 

25

240

June

109 

101 

101 

107 

97

99 

103 

109 

132 

151

158 

178 

185 

197 

199

208 

220 

240 

225 

222

210 

204 

192 

180 

169

163 

158 

147 

136 

125

Minimum

July

119 

111 

105 

101 

97

93 

99 

90 

84 

84

77 

70 

67 

63 

60

56 

55 

55 

58 

56

52 

49 

48 

50 

53

45 

43 

41 

39 

38 

38

18 

10 

10

8.8

10 

11 

11 

11 

37 

97 

38 

32 

18

10

Aug.

37 

36 

36 

36 

36

36 

36 

36 

34 

32

32 

30 

30 

29 

28

28 

30 

28 

28 

26

26 

25 

25 

25 

25

35 

25 

24 

24 

23 

22

Mean

18.6 

14.5 

12.4

41.2

11.2 

11.0 

11.2 

19.5 

161' 77.1 

67.6 

29.5 

20.7

37.9

Sept.

22 

24 

24 

22 

22

22 

21 

21 

21 

22

24 

25 

22 

21 

21

30 

19 

19 

19 

19

19 

19 

19 

18 

18

18 

19 

18 

21 

32

Runoff In 

acre-feet

1,150 

865 

760

39,900

690 

611 

688 

1,160 

4,740 

9,570 

4,160 

1,810 

1,230

27,430

Peak discharge (base, 160 see.-ft.).- June 17 (ll p.m.) 290 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- Ho gage-height record Nov. 28 to Apr. 7 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 4 discharge measurements, weather records, and records for stations on nearby streams.
122 GUNNISON RIVER BASIN

Ohio Creek near Baldwin, Colo.

Location.- Water-stage recorder, lat. 38°42', long. 107°00', in SWj sec. 34, T. 15 S., R. 

 86 W., 800 feet downstream from Mill Creek and 5j miles southeast of Baldwin.

Drainage area.- 124 square miles.

Records available.- April 1941 to September 1949. (April to November 1940 in files of 

bureau or Keelamation.)

Extremes. - Maximum discharge during year, 807 second-feet .Tune 23 (gage height, 3.72 feet), 

from rating curve extended above 560 second-feet; minimum daily, 16 second-feet Dec. 9, 

Jan. 30, Feb. 10.

1941-49: Maximum discharge, 1,260 second-feet May 19, 1948 (gage height, 4.65 feet), 

from rating curve extended above 560 second-feet by logarithmic plotting; minimum daily, 

10 second-feet Dec. 31, 1944, Jan. 3, 1945, Jan. 17-26, 1947.

Remarks.- Records good except those for Nov. 1 to Apr. 20, which are fair, 

diversions above station for irrigation.

Many small

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

20 

19 

18 

18

21

24 

20 

22

21 

20

20 

29 

2» 

20 

20

20 

20 

20 

20 

20

20 

20 

2» 

20 

20

20 

21 

22 

23 

25 

24

Nov.

24 

24 

*26 

24 

24

b25 

b25 

b25

b22 

b24

b26 

b24 

24 

24 

24

24 

23 

21 

20

21

20 

20 

20

21 

21

21 

21 

22 

21 

*20

Dec.

20 

19 

19 

19 

20

18 

18 

17 

16 

18

19 

20 

20 

20 

20

20 

20 

20 

20 

20

21 

21 

21 

22 

22

22 

22 

21 

22 

21 

20

Jan.

20 

20 

20 

20 

19

*20 

20 

20 

20 

20

20 

20 

21 

21 

21

20 

19 

19 

19 

20

20

<;o

20 

19 

18

18 

18 

17 

17

16 

17

Feb.

17 

*18 

18 

18 

17

17 

17 

17 

17 

16

17 

18 

17 

18 

19

18 

20 

20 

21 

21

21 

21 

21 

20 

19

18

17 

18

Month

Octo 

Hove

Deoe

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

1..... ..................................

ter year 1948-49 .......................

Peak discharge Cbase, 450 sec. -ft. .- May ]

June 23 {11 p.m.) 807 sec. -ft. 

* Winter discharge measurement made on this

Mar.

*18 

18 

19 

19 

19

20 

20 

20 

21 

22

22 

22 

22 

22 

21

22 

22 

23 

23 

23

23 

24 

25 

24 

23

22

23 

25 

26 

27 

28

Apr.

29 

29 

29 

31 

33

40 

*45 

41 

41 

42

44 

54 

63 

57 

57

70 

96 

117 

144 

158

180 

200 

226 

283 

313

313 

277 

289 

310 

280

Secondfoot-days

638 

681 

618

43,944

599 

516 

688 

3,891 

9,963 

13^.344 

5,249 

1,441 

686

38,314

5 (11 p.m.) 

day.

May

229 

271 

334 

346 

304

286 

253 

220 

210 

238

283 

340 

322 

370 

436

415 

349 

319 

298 

307

268 

262 

283 

319 

364

412 

409 

385 

382 

382 

367

Maximum

25 

26 

22

1,070

21 

21 

28 

313 

436 

751 

298 

68 

27

751

June

334 

286 

271 

361 

334

337 

337 

373 

364 

424

481 

502 

541 

508 

490

499 

569 

751 

667 

608

385 

502 

555 

600 

427

412 

403 

379 

334 

310

July

298 

295 

274 

274 

256

235 

268 

244 

215 

218

195 

182 

175 

160 

141

132 

132 

127 

129 

134

132 

105 

108 

153 

156

117 

96 

86 

76 

68 

68

Aug.

68 

64 

64 

57 

54

59 

68 

63 

68 

66

56 

53 

49 

47 

44

43 

43

43 

40 

38

37 

37 

37 

38 

33

33

31 

28 

27 

27 

26

Sept.

26 

26 

25 

24 

24

24 

23 

23 

23 

24

27 

27 

24 

25 

23

23

22 

22

21 

20

20 

20 

20 

20 

20

20 

20 

20 

24 

26

«- "-» ac^-fee-?

18 20.6 1,270 

20 22.7 1,350 

16 19.9 1,230

15 120 87,180

16 19.3 1,190 

16 18.4 1,020 

18 22.2 1,360 

29 130 7,720 

210 321 19,760 

271 445 26,470 

68 169 10,410 

26 46.5 2,860 

20 22.9 1,360

16 105 76,000

484 sec. -ft.; June 18 (3 p.m.) 776 sec. -ft.;

b Stage-discharge relation affected by ice.

Note.- Ho gage-height record Hov. 13 to Apr. 6 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 4 discharge measurements, weather records, and records 

for nearby stations.
GUNNISON RIVER BASIN 123

Ohio Creek near Gunnison, Colo.

Location.- Water-stage recorder, lat. 38°35', long. 106°56', in sec. 23, T. 50 N., R. 1

W., half a mile upstream from mouth and 2 miles northwest of Gunnison. 

Drainage area.- 150 square miles. 

Records available.- October 1944 to September 1949. 

Extremes.- Maximum discharge during year, 853 second-feet June 18 (gage height, 5.84 feet);

minimum daily, 18 second-feeL Jan. 30, Feb. 10, Sept. 8, 10.

1944-49: Maximum discharge, 992 second-feet May 20, 1948 (gage height, 6.15 feet),

from rating curve extended above 540 second-feet "by logarithmic plotting; minimum daily,

12 second-feet Jan. 16, 1947. 

Remarks.- Records good except those for periods of ice effect or no gage-height record,

which are fair. Diversions above station for irrigation. 

Revisions (water year).- W 1089: 1945.

lating tables, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Feb. 25 to Apr. 16, - 

July 31 to Aug. 26, Sept. 29, 30)

Oct. 1 to Apr. 16 Apr. 17 to Sept. 30

3.5

3.7

3.8

1H 

130

3.1 21

3.2 30

3.3 42

3.5 74

3.6 93

3.9 166

4.8 440

5.5 710

Note.- Same as 

following table 

below 3.5 feet.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

35 

28 

26 

25 

25

30 

26 

24 

23 

22

21 

20 

20 

19 

19

19 

19 

19 

19 

20

22 

22 

22 

23 

23

23 

23 

26 

27 

31 

32

Nov.

30 

26 

28 

34 

25

25 

34 

29 

24 

31

38 

34 

34 

35 

32

34 

35 

27 

26 

28

26 

24 

25 

26 

26

26 

26 

30 

»29 

27

Dec.

25 

23 

22 

21 

25

21 

22 

20 

b!9 

23

23 

23 

23 

23 

23

24 

24 

22 

21 

22

23 

23 

24 

24 

25

25 

24 

23 

24 

24 

22

Jan.

21 

21 

21 

23 

b21

»b23 

b23 

b23 

b23 

b23

23 

23 

24 

25 

26

23 

b22 

a21 

a21 

a23

a23 

a23 

a23

23

20 

20 

20 

b!9 

a!8 

a!9

Feb.

a20 

»b21 

21

20 

20

a!9 

a20 

a20 

a!9 

a!8

a!9 

21 

20 

21 

24

22 

24 

b23 

b23 

b23

b23 

24 

24 

25 

24

21 

20 

»21

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 450 sec.-ft .).-. May

June 13 [11:30 a.m.) 542 sec.-ft.; June* 18 ( 

* Winter discharge measurement made on thl 

a Ho gage-height record; discharge compute 

on nearby streams. 

b Stage-discharge relation affected by ice

Mar.

21 

20 

21 

22 

22

22 

23 

23 

24 

25

26 

25 

24 

25 

23

26 

26 

26 

26 

27

27 

30 

30 

29 

28

26 

30 

32

30 

31 

32

Apr.

36 

35 

35 

38 

41

56 

72 

88 

102 

100

100 

120 

136 

124 

104

114 

135 

158 

175 

183

228 

231 

249 

282 

324

324 

297 

279 

324 

300

Secondfoot-days

733 

874 

710

45,507

684 

600 

802 

4,790 

9,431 

12,685 

6,611 

2,091 

870

40,881

May

246 

264 

324 

357 

315

303 

276 

240 

222 

237

276 

330 

321 

339 

408

416 

372 

339 

315 

324

279 

276 

264 

273 

303

330 

318 

291 

291 

291 

291

Maximum

35 

38 

25

902

26 

25 

32 

324 

416 

742 

3»0 

130 

41

742

June

279 

243 

231 

339 

294

297 

321 

384 

318 

366

450 

461 

503 

472 

433

433 

510 

742 

738 

638

526 

461 

482 

674 

422

375 

351 

339 

312 

291

July

294 

291 

2T9 

282 

261

234 

300 

282 

258 

285

261 

234 

204 

204 

174

161 

153 

143 

175 

198

189 

172 

169 

222 

243

2»1 

175 

161 

148 

135 

123

Aug.

130 

126 

118 

107 

95

95 

107 

85 

85 

84

74 

69 

66 

64 

60

56 

56 

60 

53 

50

47 

47 

45 

48 

44

41 

40 

37 

36 

34 

32

Sept.

32 

32 

32 

30 

22

19 

19 

18 

19 

18

21 

26 

26 

29 

34

36 

35 

32 

31 

34

41 

41 

34 

31 

29

28 

26 

26 

35 

34

Minimum Mean J^^

19 23.6 1,450 

24 29.1 1,730 

19 22.9 1,410

18 124 9»,270

18 22.1 1,360 

18 21.4 1,190 

20 25.9 1,590 

35 160 9,500 

222 304 18,710 

231 423 25,160 

123 213 13,110 

32 67.5 4,150 

18 29.0 1,730

18 112 81,090

L6 (3 a.m.) 450 sec.-ft.; June 8 (4 a.m.) 458 sec.-ft.; 

5 p.m.) 853 sec.-ft.; June 24 (9 a.m.) 778 sec.-ft. 

3 day. 

i on basis of weather records and records for stations
124 GUWNISQN RIVER BASIN 

Castle Creek near Baldwin, Colo.

Location.,- Water-stage recorder, lat. 38°46', long. 107°06', In sec. 2, T. 15 S., R. 87 

W., It miles upstream from mouth and 2 miles southeast of Baldwin.

Drainage area.- 17.5 square miles.

Records available.- October 1944 to September 1949 (no winter records 1944-45).

Extremes.- Maximum discharge during year, 384 second-feet June 23 (gage height, 6.36 

feet), from rating curve extended above 90 second-feet; minimum daily recorded, 2.6 

second-feet Sept. 27.

1944-49: Maximum discharge, that of June 23, 1949; maximum gage height, 6.62 feet 

July 23, 1945; minimum discharge recorded, that of Sept. 27, 1949.

Remarks.- Records good except those above 200 second-feet or below 10 second-feet, which 

are fair, and those for periods of ice effect or no gage-height record, which are poor. 

No diversion above-station,

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

38 

29 

30 

31

Oct.

12 

11 

11 

9.6 

11

10 

10 

10 

9.6 

9.0

8.6 

8.3 

8.3 

8.3 

8.1

8.1 

8.0 

7.9 

»7.2 

7.0

6.8 

6.4 

6.3 

6.3 

5.9

5.9

5.7 

6.4 

5.9

6.6 

6.1

Nov.

6.1 

5.7 

6.3 

5.5 

b5.4

b5.4 

b5.4 

b5.4 

b4.C 

5.3

5,4 

5.4

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

4.8

4.8 

4.8 

4.8 

4.8 

4.8

5.0 

5.0 

5.0 

4.8 

4.8

Dec.

4.5

Jan.

4.0

Feb.

3.8

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 ...............

Mar.

(*) 

> 4.3

Apr.

4.5 

4.6 

4.6 

4.8 

5.2

5.6 

5.4 

5.4 

5.6 

5.8

6.4

7.2 

8.0 

8.0 

*blO

blO 

13 

16 

15 

20

20 

23 

29 

34 

44

45 

41 

44 

55 

46

Secondfoot-days

251.3 

154.5 

139.5

13,358.2

124.0 

106.4 

133.3 

546.1 

2,300 

5,152 

2,935 

684 

220.1

12,746.2

May

42 

54 

78 

72 

61

52 

39

36 

38 

45

59 

78 

73 

93 

110

98 

70 

64 

69 

61

52 

60 

69 

84 

101

114 

115 

101 

104 

106 

102

Maximum

12 

6.3

245

55 

115 

300 

160 

36 

12

300

June

84 

74 

69 

96 

84

88 

90 

101 

112 

141

170 

197 

204 

203 

197

206 

239 

300 

258 

265

234 

218 

236 

232 

184

184 

180 

178 

166 

162

July

160 

160 

156 

150 

136

128 

132 

130 

120 

116

107 

105 

100 

91 

83

77 

80

77 

77 

80

78 

66 

65 

86 

86

62 

53 

49 

44 

41 

39

Minimum

5.7 

4.8

-

4.5

36 

69 

39 

12 

2.6

-

Aug.

36 

34 

35 

33 

30

31 

35

31 

32 

31

26 

24 

22 

20 

19

18 

19 

18 

16 

16

16 

14 

16 

17 

16

14 

14 

13 

13 

13 

12

Mean

8.11 

5.15 

4.5

36.5

4.0 

3.8 

4.3 

18.2 

74.2 

172 

94.7 

22.1 

7.34

34.9

Sept.

12 

12 

12 

11

11

10 

10 

10 

10 

10

11

10 

9.6 

9.0 

7.9

6.8 

6.2 

5.8 

5.2 

4.5

4.0 

3.8 

3.4 

3.2 

3.0

2.8 

2.6 

3.0 

4.5 

5.8

Runoff In 

acre-feet

498 

306 

277

26,500

246 

211 

264 

1,080 

4,566 

10,220 

5,820 

1,360 

437

25,280

Peak discharge (base, 220 sec.-ft.).- June 18 (2 p.m.) 328 sec.-ft.; June 23 (10 p.m.) 384 sec.- 

ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Oct. 13, 14, 16, 17, Nov. 10 to Apr. 14 (stage-discharge relation 

affected by ice during most of periods); discharge computed on basis of 1 discharge measurement at 

station, 4 discharge measurements 2 miles downstreasm, weather records, and records for stations on 

nearby streams.
GUNNISON RIVER BASIN 125

Tomichi Creek at Sargents, Colo.

Location.- Water-stage recorder, lat. 38°24', long. 106°25', in SW£ sec. 21, T. 48 M., 

R. 5 E., 300 feet from U. S. Highway 50, half a mile downstream from Marshall Creek, 

and three-quarters of a mile south of Sargents.

Drainage area.- 155 square miles.

Records available.- May 1917 to September 1922, April 1938 to September 1949.

Average discharge.- 16 years, 67.4 second-feet.

Extremes. - Maximum discharge during year, 402 second-feet -Tune 19 (gage height, 2.19 

reet } ; minimum daily, 22 second-feet Jan. 30.

1917-22, 1938-49: Maximum discharge, 792 second-feet June 9, 1921 (gage height, 

4.05 feet, site and datum then in use), from rating curve extended above 600 secondfeet; minimum recorded, 6 second-feet Nov. 16, 1920.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

wviich are fair. Diversions above station for irrigation.

Revisions.- W 859: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

25 

23 

23 

23 

24

26 

25 

25 

24 

24

24 

24 

23 

24 

24

24

24 

23 

24 

25

25 

24 

25 

25 

26

26 

27 

28 

28 

27 

27

Nov.

27 

28 

29 

*29 

27

28 

30 

30 

28 

29

30 

28 

28 

30 

29

29 

29

28 

27 

28

29

28 

29 

30 

30

30 

29 

28 

26 

28

Dec.

29 

*30 

29 

29 

29

29 

29 

28 

28 

28

28 

28 

27 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

26 

24

25 

26 

26 

26 

25 

24

Jan.

25 

25 

25 

*24 

23

24 

25 

26 

26 

26

26 

26 

26 

25 

25

24 

24 

24 

25 

26

26 

26 

26 

25 

25

25 

25 

24 

23 

22 

23

Feb.

23 

24 

*25 

24 

24

24 

25 

26 

26 

25

26 

26 

26 

25 

25

24 

24 

24 

24 

24

24 

23 

23 

24 

24

23 

23 

23

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

23 

23 

*23 

23 

23

24 

24

25 

25 

25

25 

26 

25 

25 

26

27 

27 

28 

28 

29

30 

30 

30 

30

29

29 

29 

29 

29 

30 

30

Apr.

31 

30 

32 

*35 

40

43 

45 

47 

43 

43

49 

52 

56 

55 

58

63 

74 

80 

86 

97

108 

123 

141 

154 

158

154 

141 

145 

158 

158

Secondfoot-days

769 

858 

843

25,059

770 

681 

829 

2,499 

6,827 

8,224 

3,913 

1,628 

957

28,798

May

134 

145 

171 

169 

154

158 

152 

138 

130 

143

156 

178 

182 

180 

222

250 

260 

252 

255 

265

245 

238 

228 

245 

265

300 

322 

328 

322 

322 

318

Maximum

28 

30 

30

518

26 

26 

30 

158 

328 

378 

200 

78 

38

378

June

288 

252 

238 

272 

252

265 

270 

280 

308 

305

308 

312 

330 

328 

305

310 

328 

368 

378 

330

295 

265 

248 

248 

218

208 

196 

193 

171 

155

Minimum

July

23 

26 

24

15

22 

23 

23 

30 

130 

155 

70 

34 

30

22

140 

145 

135 

115 

120

115 

200 

150 

170 

190

175 

165 

150 

140 

138

130 

125 

120 

120 

125

115 

110 

105 

105 

110

100 

90 

85 

SO 

75 

70

Aug.

70 

76 

76 

78 

70

66 

66 

66 

67 

67

56 

54 

52 

50 

50

49 

49

50 

47 

43

41 

40 

40 

40 

41

41

39 

38 

37 

35 

34

Mean

24.8 

28.6 

27.2

68.5

24.8 

24.3 

26.7 

83.3 

220 

274 

126 

52.5 

31.9

78.9

Sept.

34 

34 

34 

34 

32

32 

32 

31 

31 

32

31 

31 

30 

30 

30

31 

31 

31 

31 

30

30 

30 

30 

30 

31

31 

35 

35 

38 

35

Runoff In 

acre-feet

1,530 

1,700 

1,670

49,700

1,530 

1,350 

1,640 

4,960 

13,540 

16,310 

7,760 

3,230 

1,900

57,120

Peak discharge (base, 200 sec. -ft.).- Apr. 23 (8:30 p.m.) 212 sec. -ft.; May 20 (2 a.m.) 288 sec.-

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 5 to Apr. 7 (no gage-height record Nov. 26 to 

Apr. 3; discharge computed on basis of 4 discharge measurements, weather records, and records for 

nearby stations). No gage-height record June 30 to July 14, July 16 to Aug. 8, Aug. 12-16, Aug. 19 

to Sept. 6; discharge computed on basis of recorded range In stage and records for nearby stations.
126 GUNNISON RIVER BASIN

Tomichi Creek near Doyleville, Colo.

Location.- Water-stage recorder, lat. 38°25', long. 106°30', in NE£ sec. 22, T. 48 N., 

R. 4 E., 100 feet from U. S. Highway 50, a quarter of a mile downstream from Tie 

Creek, and 6 miles southeast of Doyleville.

Drainage area.- 228 square miles.

Records available.- November 1944 to September 1949.

Extremes.- Maximum discharge during year, 389 second-feet June 19 (gage height, 6.29 

reet); minimum daily, 24 second-feet Oct. 4, Jan. 30.

1944-49: Maximum discharge, 437 second-feet May 22, 1948 (gage height, 6.66 feet); 

minimum daily, 13 second-feet Nov. 3, 1946.

Remarks.- Records good exceptthose for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

9? 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

28 

27 

27 

24 

26

32 

27 

29 

27 

27

27 

27 

27 

27 

27

27 

27 

26 

27 

28

28 

27 

27 

27 

27

27 

28 

32 

31 

32 

32

Nov.

30 

30 

35 

*35 

27

32 

38 

34 

32 

33

36 

32 

32 

35

34

33 

32 

29 

28 

29

31 

29 

32 

31

32

31

31 

30 

27 

28

Dec.

29 

*29 

28 

28 

28

28 

29 

29 

29 

29

29 

29 

28 

28 

29

28 

29 

29 

28 

28

28 

28 

29 

28 

25

26 

27 

28 

27 

26 

26

Jan.

28 

28 

27 

*26 

25

26 

27 

27 

28 

28

28 

28 

28 

28 

27

26 

25 

25 

26 

27

27 

28 

28 

27 

26

26 

26 

25 

25 

24 

25

Feb.

25 

26 

*27 

28 

27

26 

28 

30 

29 

30

30 

29 

29 

28 

28

27 

27 

27 

26 

25

26 

26 

26 

26 

26

27 

26 

26

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 220 sec. -ft.).- Apr.

19 (6 a.m.; 389 sec. -ft.; July 7 (6:30 a.m.;

Mar.

26 

26 

*26 

27 

27

27 

27 

28 

29 

29

30 

30 

29 

29 

30

31 

32 

32 

33 

34

34 

34 

34 

33 

32

36 

32 

32 

34 

34 

33

Apr.

33 

33 

35 

*40 

44

48 

52 

58 

56 

56

57 

68 

78 

76 

75

86 

101 

120 

120

142

154 

160 

177 

191 

199

192 

172 

172 

195 

193

Secondfoot-days

862 

948 

869

27,309

825 

761 

950 

3,183 

7,580 

8,273 

4,219 

1,677 

943

31,090

May

166 

171 

202 

198 

181

186 

177 

160 

148 

155

176 

198 

207 

198 

245

282 

306 

290 

280 

292

273 

261 

249 

264 

285

326 

346 

349 

343 

338 

328

Maximum

32 

38 

29

429

28 

30 

36 

199 

349 

368 

219 

84 

39

368

June

303 

270 

255 

278 

268

278 

288 

294 

322 

314

312 

317 

330 

328 

308

308 

318 

356 

368 

326

286 

264 

245 

262 

216

200 

188

173 

155 

143

July

134 

146 

130 

125 

136

134 

219 

167 

207 

216

191 

186 

175 

171 

157

143 

133 

124 

125 

129

114 

109 

109 

108

116

101 

94 

88 

82 

76 

74

Minimum

24 

27 

25

22

24 

25 

26 

33 

148 

143 

74 

34 

27

24

Aug.

72 

75 

79

84 

71

69

68 

68 

67 

70

60 

57 

55 

53 

50

49 

51 

54 

48 

44

41 

40 

39 

40 

44

45 

41 

38 

36 

35 

34

Mean

27.8 

31.6 

28.0

74.6

26.6 

27.2 

30.6 

106 

245 

276 

136 

54.1 

31.4

85.2

Sept.

34 

34 

34 

34 

32

32 

30 

30 

31 

35

34 

34 

3H 

33 

32

30 

30 

29 

29 

29

29 

28 

27 

27 

27

28 

32 

30 

38 

39

Runoff In 

acre-feet

1,710 

1,880 

1,720

54,170

1,640 

1,510 

1,880 

6,310 

15,030 

16,410 

8,370 

3,330 

1,870

61,660

24 (9 p.m.) 249 sec. -ft. ; May 27 (7a.m.) 359 sec.-ft.; June 

290 sec.-ft.; July 9 (10 a.m.) 270 sec.-ft.

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 19, 20, Nov. 26 to Apr. 9 (no gage-height record Nov. 29 to Dec. 1, Dec. 26-30).
GUNNISON RIVER BASIN 127

Tomichi Creek at Parlin, Colo.

Location.- Water-stage recorder, lat. 38°30', long. 106°44', in NW-j sec. 23, T. 49 N., 

R. a E., at Parlin, 300 feet from U. S. Highway 50 and a quarter of a mile upstream 

from Quartz Creek.

Drainage area.- 586 square miles.

Records available.- November 1944 to September 1949.

Extremes.- Maximum discharge during year, 423 second-feet June 20 (gage height, 5.66 

reet) ; minimum daily, 12 second-feet Oct. 2-5.

1944-49: Maximum discharge, 669 second-feet May 25, 1948 (gage height, 6.37 feet), 

from rating curve extended above 400 second-feet; minimum daily, 3.5 second-feet 

July 10-14, 17, 18, 1946.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

13 

12

12 

12 

12

15

16 

16 

16 

16

16 

16 

16 

16 

17

18 

18 

18 

18 

19

20 

20 

20 

19 

20

20 

20 

20 

22 

23 

23

Nov.

23 

23 

26 

*28 

20

22 

19 

23 

22 

23

25 

28

28 

27 

27

27 

28 

27 

25 

26

27 

28 

28 

27 

27

26 

26 

26 

26 

27

Dec.

28 

27 

*28 

27 

25

24

24 

25 

26 

26

26 

26 

25 

26 

26

25 

25 

25 

25 

25

25 

26 

26 

24 

23

23 

24 

24 

23 

23 

24

Jan.

24 

24 

23 

*22 

22

23 

24 

25 

26 

26

2d 

26 

26 

25 

25

25 

24 

26 

26 

27

28 

29 

30 

29 

29

29 

28 

27 

26 

26 

28

Feb.

28 

29 

»32 

32 

31

30 

31 

33 

33 

34

34 

33 

33

32

30

31 

30 

29 

29 

29

30 

29 

29 

29 

29

28 

28 

27

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 250 sec. -ft..).- Apr.

sec. -ft.; May 7 (2 p.m.J 282 sec. -ft.; May 1 

June 8 (2:30 p.m.) 410 sec. -ft.; June 20 (8

Mar.

27

27 

*27 

27 

28

29 

29 

29 

29 

29

29 

29 

30 

31 

33

35 

37 

36 

37 

39

39 

39 

38

37 

36

37 

37 

39 

40 

40 

39

Apr.

40 

42 

42 

42 

44

50 

58 

*64 

75 

115

158 

158 

200

277 

260

229 

246 

272 

244 

236

241 

215 

227 

280 

312

312 

284 

277 

272

270

Secondfoot -days

539

765 

779

29,569.3

804 

852 

1,038 

5,542 

8,713 

9,093 

4,044 

1,683 

525

34,377

May

248 

220 

224 

241 

239

241 

275 

268 

227 

200

204 

229 

260 

272 

270

284 

325 

366 

354 

338

330 

315 

294 

270 

263

277 

302 

330 

352 

354 

341

Maximum

23 

28 

28

657

30 

34 

40 

312 

366 

414 

204 

89 

21

414

June

330 

310 

275 

289 

333

304 

307 

386 

360 

349

349 

357 

363 

352 

336

307 

294 

325 

386 

414

366 

299 

263 

275

270

220 

207 

178 

155 

134

July

118 

108 

108 

108 

114

116 

144 

202 

194 

204

2O4 

178 

160 

149 

138

124 

114 

110 

126 

127

122 

114 

112 

122 

120

122 

110 

102 

96 

91 

B7

Aug.

77 

77 

83 

97 

89

79 

76 

75 

7? 

76

73 

65 

60 

56 

53

50 

49 

53 

50 

46

40 

37 

35 

35 

36

34 

30 

25

23 

22 

20

Sept.

19 

18 

20 

19 

18

18 

18 

16 

16 

18

19 

20 

20 

20 

19

18 

18 

17 

16 

16

16 

16 

16 

15 

15

14 

15 

16 

18

21

Minima Mean *£%£

12 17.4 1,070 

19 25.5 1,520 

23 25.1 1,550

7.4 80.8 58,660

22 25.9 1,590 

27 30.4 1,690 

27 33.5 2,060 

40 185 10,990 

200 281 17,280 

134 303 18,040 

87 130 8,020 

20 54.3 3,340 

14 17.5 1,040

12 94.2 68,190

18 (8:30 a.m.Jr 312 sec. -ft.; Apr. 25 (3:30 p.m. 

8 (9 p.m.) 371 sec.^ft.; May 30 (9 a.m.) 363 sec. 

a.m. ) 423 sec. -ft.

338 

-ft.;

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 9 to Apr. 7 (no gage-height record Jan. 26 to 

MaFTS5; discharge computed on basis of 2 discharge measurements, weather records, and records for 

nearby stations).
128 GUNNISON RIVER BASIN 

Tomlchl Creek at Gunnison, Colo.

Location.- Water-stage recorder, lat. 38°32', long. 106°56', in sec. 11, T. 49 N., R. 1 

W., half a mile upstream from mouth and 1 mile south of Gunnison. Datum of gage is 

7,628.58 feet above mean sea level, datum of 1929.

Drainage area.-'1,020 square miles.

Records available.- April 1938 to September 1943. November, December 1910 (gage heights 

only, datum then in use).

Average discharge.- 11 years, 188 second-feet.

Extremes.- Maximum discharge during year, 1,320 second-feet June 20 (feage height, 3.74 

feetj; minimum daily, 50 second-feet Oct. 1-3.

1938-49: Maximum discharge, 1,530 second-feet Mar. 24, 1939, from rating curve 

extended above 1,230 second-feet; maximum gage height, 3.97 feet May 28, 1942; minimum 

daily discharge, 26 second-feet Sept. 16, 17, 19, 1940.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

50 

50 

50 

51 

54

57 

60 

63 

70 

77

75 

79 

79 

77 

77

75 

75 

75 

75 

77

75 

74 

72 

73 

74

74 

75 

77 

84 

87 

84

Nov.

*84 

84 

87 

98 

82

79 

91 

106 

104 

b96

b98 

b!05 

blOO 

blOO 

b96

b92 

b92 

b90 

b88 

b84

b86 

b90 

b90 

b96 

b96

b94 

92

88 

*86 

86

Dec.

90 

90 

90 

86 

84

86 

86 

83 

82 

84

86 

84 

83 

82 

82

80

83

82 

80 

82

84 

82 

82 

84 

76

80 

84 

84 

80 

80 

80

Jan.

84 

84 

82 

82 

*80

80 

83 

82 

84 

86

86 

84 

86 

84 

80

78 

76 

80 

82 

86

86 

84 

86 

84 

82

82 

84 

82 

80 

80 

 84

Feb.

83 

84 

86 

86 

84

80 

83 

86 

82 

84

86 

84 

80 

80 

80

80 

80 

78 

78 

78

82 

80 

80 

80 

82

82 

83 

84

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebri 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

St............... .......................

ter year 1948-49 ...............

Mar.

84 

*86 

86 

88 

90

90 

92 

92 

90 

90

88 

88 

88 

88 

88

93 

105 

105 

110 

120

125

115 

*112 

117 

117

117 

131 

110 

138 

130 

135

Apr.

146 

152 

152 

154

172

184 

190 

217 

235 

235

260 

396 

336 

364 

376

388 

404 

455 

450 

460

465 

450 

450 

500 

555

580 

575 

575 

565 

570

Secondfoot-days

2,193 

2,760 

2,578

80,523

3,562 

2,292 

3,187 

10,911 

18,959 

26,689 

14,105 

5,674 

2,555

94,465

May

545 

485 

485 

525

530

530 

575 

580 

535 

480

490 

545 

612 

617 

650

688 

733 

749 

754 

723

694 

672 

634 

590 

555

570 

633 

661 

705 

727 

700

Maximum

87 

106 

90

1,210

86 

86 

135 

580 

754 

1,310 

713 

262 

100

1,310

June

683 

639 

590 

672 

723

700 

700 

814 

874 

856

862 

904 

916 

976 

1,010

1,040 

1,030 

1,100 

1,360 

1,310

,300 

,080 

,020 

,040 

,000

881 

783 

748 

678 

611

Minimum

July

555 

507 

525 

537 

519

489 

561 

650 

713 

692

685 

678 

573 

501 

454

405 

375 

351 

346 

380

380 

356 

346 

356 

370

375 

338 

306 

384 

362 

246

50 

79 

76

44

76 

78 

84 

146 

480 

590 

246 

105 

74

50

Aug.

226 

223 

238

362 

258

246 

234 

234 

246 

250

238 

206 

195 

189 

180

174

171 

174 

168 

152

138 

134 

131 

131 

131

138 

134 

139 

133 

116 

105

Mean

70.7 

92.0 

83.2

230

83.6 

81.9 

103 

364 

612 

890 

455 

183 

85.2

359

Sept.

98 

96 

100 

100 

98

98 

96 

92 

85 

85

90 

92 

88 

87 

85

84 

84 

79 

76 

75

75 

75 

74 

74 

74

74 

74 

75 

83 

90

Runoff In 

acre-feet

4,350 

5,470 

5,110

159,700

5,080 

4,550 

6,320 

31,640 

37,600 

52,940 

27,980 

11,250 

5,070

187,400

Peak discharge (base. 320 sec.-ft.).- May 19 (3 p.m.) 766 sec.-ft.; June 20 (4:30 p.m.) 1,320 sec. 

ft.; July 9 (5 p.m.; 727 sec.-ft. 

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note^- Ho gage-height record Nov. 27 to Mar. 22 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 4 discharge maasuremants, weather records, and records for nearby stations.
GUNNISON RIVER BASIN 129

Quartz Creek near Ohio, Colo.

Location (revised).- Water-stage recorder, lat. 38°33'35", long. 106°38'05", In SW£sw£ 

sec. 27, T. fau w., R. 3 E., 75 feet upstream from bridge on State Highway 162, half 

a mile downstream from Willow Creek, and 1 mile southwest of Ohio.

Drainage area.- 106 square miles (revised). 

Records available, - April 1938 to September J.949. 

Average discharge.- 10 years (1939-49), 55.8 second-feet.

Extremes.- Maximum discharge during year, 521 second-feet June 19 (gage height, 3.69 

feet)-; minimum daily, 17 second-feet Jan. 30.

1938-49: Maximum discharge, 640 second-feet May 26, 1942, from rating curve extended above 470 second-feet; maximum gage height, 5.73 feet (present datum) July 31, 

1945 (backwater from Flick Gulch, 300 feet below station); minimum daily discharge, 

10 second-feet Feb. 6, Sept. 16, 17, 1940.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 '9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

23 

23 

23 

23 

24

27 

26 

27 

26 

25

24 

24 

24 

24 

24

24 

24 

24 

25

26

25 

24 

24 

24 

24

24 

24 

24 

25 

26 

26

Nov.

26 

26 

27 

*26 

25

23 

25 

25 

24 

25

26 

25 

25 

25 

25

25 

24 

24 

22 

24

24 

24 

24 

24 

24

24 

24 

23 

20 

21

Dec.

24 

*24 

23 

23

23

22 

22 

22 

22 

22

23 

23 

23 

23 

23

23 

23 

23 

22 

22

22 

23 

23 

23

19

20 

22 

25 

24 

22 

22

Jan.

23 

23 

23 

*21 

18

19 

21 

23 

23 

23

23

23 

23 

23 

22

21 

20 

22 

22 

22

23 

23 

23 

23

21

21 

21 

19 

18 

17 

20

Feb.

19 

20 

*22

22 

21

20 

21 

22 

21 

22

22 

22 

22 

20 

19

18 

18 

18 

19 

20

20 

19 

19 

19 

19

19 

19 

19

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ember. ..................................

ter year 1948-49 .......................

Mar.

19 

19 

19 

20 

20

20 

20 

21 

21 

20

20 

20 

20 

20

20

20 

21 

22 

23 

23

*23 

22 

23 

22

23

22 

23 

25 

25 

25 

23

Apr.

23 

23 

24 

25 

23

26 

27 

27 

26 

25

25 

28

31 

30 

30

32 

38 

42 

44 

47

51 

59 

71 

88 

100

100 

98 

100 

113 

111

Secondfoot -days

760 

729 

700

21,713

667 

561 

664 

1,487 

4,231 

7,741 

3,624 

1,534 

799

23,497

May

97 

100 

122 

122 

109

102 

93 

88 

83 

93

102 

109 

109 

113 

124

136 

124 

132 

132 

140

128 

124 

124 

142 

166

201 

214 

219 

219 

234 

230

Maximum

27 

27 

25

451

23 

22 

25 

113 

234 

436 

170 

68 

32

436

June

208 

186 

182 

195 

178

195

205 

203 

214 

238

248 

280 

282 

295 

295

329 

365 

436 

412 

356

320 

288 

288 

288

236

230 

216 

205 

190 

178

July

170 

164 

162 

150 

146

140 

162 

144 

168 

164

158 

144 

136 

128 

115

103 

101 

101 

106 

103

94 

86 

89 

88 

93

82 

74 

70 

66 

59 

58

Minimum

23 

20 

19

17

17^ 

18 

19 

23 

83 

178 

58 

30 

21

17

Aug.

55 

58 

62 

62 

64

68 

66 

64 

67 

62

58 

54 

52 

49 

45

45 

48 

45 

43

41

42 

41 

42

41 

40

42 

43 

37 

36 

32 

30

Mean

24.5 

24.3 

22.6

59.3

21.5 

20.0 

21.4 

49.6 

136 

258 

117 

49.5 

26.6

64.4

Sept.

31 

32 

32 

30 

30

30 

27 

28 

28 

32

32 

30 

29 

29 

28

27 

24 

21 

21 

22

21 

21 

21 

21

22

23 

24 

23 

30 

30

Runoff In 

acre -feet

1,510 

1,450 

1,390

43,070

1,520 

1,110 

1,320 

2,950 

8,390 

15,350 

7,190 

3,040 

1,580

46,600

Peak discharge (base, 22.0 sec.-ft.).- May 30 (l:30 a.m.) 248 sec.-ft.; June 19 (1:30 a.m.) 521 

sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 6 to Dec. 3. No gage-height record Dec. 4 to 

Mar. 20 (stage-discharge relation affected by ice during most of period); discharge computed on basis 

of 2 discharge measuretaents, weather records, and records for stations on nearby streams.
130 GUNNISON RIVER BASIN

Cebolla Creek near Lake City, Colo.

Location.- Water-stage recorder, lat. 37°59 T , long. 107°10', In sec. 14, T. 43 N., R. 3 

W7~, Tust downstream from Tumble Creek, a quarter of a mile from State Highway 149, 

and 26 miles southeast of Lake City.

Drainage area.- 25.5 square miles.

Records available.- July 1946 to September 1949.

Extremes.- Maximum discharge during year, 218 second-feet June 12 (gage height, 2.99 feet); 

minimum not determined, occurred during period of no gage-height record.

1946-49: Maximum discharge, that of June 12, 1949; minimum not determined, occurred during period of nu gage-height record.

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Transmountain diverson above station (see p. 26).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28

29 

30 

31

Oct.

8.8 

8.0 

7.6 

7.6 

8.8

9.2

8.8 

8.4 

8.0 

8.0

7.6 

8.0 

8.0 

8.0 

8.0

7.6 

7.6 

7.6 

8.0 

8.4

8.0

7.6 

7.6 

7.2 

7.2

8.0

7.6

7.6 

7.6

7.K

Nov.

7.0

Dec.

6.5

Jan.

' 6.0

Feb.

 5.5

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Peak discharge (base, 180 sec. -ft.).- June

Note.- No gage-height record Oct. 29 to Ap

Mar.

* 5.5

Apr.

6.0 

6.0 

6.0 

6.0 

6.0

6.4 

6.4

6.4 

6.4 

6.4

6.8 

7.6 

6.8 

6.8 

7.2

8.0 

9.6 

9.6 

10 

10

10 

15 

21 

21 

22

24 

22 

24

30 

25

Secondfoot-days

245.6 

210.0 

201.5

186.0 

154.0 

170.5 

358.4 

1,723 

3,189 

1,204 

439 

294.2

8,375.2

May

23 

32 

42 

39 

35

31 

23 

21 

25 

30

36 

43 

37 

45

64

68 

62 

58 

59

62

54 

56 

64 

73 

82

86 

83 

85 

101 

111 

93

Maximum

9.2

135

30 

111 

182 

66 

20 

13

182

June

80 

71 

72 

78 

87

103 

93 

82 

83 

104

121 

146 

182 

170 

145

136 

141 

154 

131 

120

121 

117 

121 

103 

80

75 

78

69 

64 

62

July

64 

62 

58 

56 

54

50 

56 

50 

55

66

50 

46 

44 

38 

35

34 

33 

30 

31 

29

?8 

27 

28 

28 

27

23 

22 

22 

20 

19 

19

Minimum

7.2

-

6. 

21 

62 

19 

10 

8.

0

8

-

Aug.

18 

18 

20

18 

15

15 

15 

15 

15

16

17 

15 

14 

14 

14

14 

16 

14

13 

13

12 

12 

12 

12 

13

13 

13

12 

11 

10 

10

Mean

7.92 

7.0

6.5

18.0

6.0 

5.5 

5.5 

11.9 

55.6 

106 

38.8 

14.2 

9.81

22.9

12 (8 p.m. ) 218 sec. -ft. 

r. 11; discharge computed on basis of weather

Sept.

10 

12 

10 

10 

10

10 

9.6 

9.6 

9.6 

10

13

10 

10 

10

9.6

9.6 

9.6 

9.2 

9.2 

8.8

8.8 

8.8 

8.8 

8.8 

8.8

9.6 

9.2 

9.6

12 

10

Runoff In 

acre-feet

487 

417 

400

13,040

369 

305 

338 

711 

3,420 

6,330 

2,390 

871 

584

16,620

records and

records for nearby stations.
GUNNISON RIVER BASIN 131

Cebolla Creek at Powderhorn, Colo.

Location.- Water-stage recorder, lat. 38°17'30", long. 107°07'00", in SE£ sec. 29, T. 47 

N., R. 2 W , 200 feet downstream from bridge on State Highway 149, 250 feet downstream 

from Powderhorn Creek, and half a mile north of Powderhorn.

Drainage area.- 334 square miles.

Records available.- April 1938 to September 1949.

Extremes.- Maximum discharge during year, 980 second-feet June 17 (gage height, 3.40 feet); 

minimum daily, 37 second-feet Jan. 5.

1938-49: Maximum discharge, 2,150 second-feet May 16, 1944, from rating curve extended above 710 second-feet; maximum gage height, 3.40 feet June 17, 1949; minimum 

daily discharge, 22 second-feet July 14, 1940.

Remarks.- Records good except those for Nov. 1 to May 31, which are fair. 

Diversions for irrigation and small transmountain diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

73 

69 

67 

69 

69

69 

67 

67 

67 

64

62 

60 

60 

60 

60

60 

57 

57 

58 

67

62 

58 

57 

57 

56

52 

56 

58 

58 

60 

62

Nov.

57 

57 

b53 

b55 

*b45

50 

50 

50 

42 

50

55 

50 

50 

50 

50

50 

50 

48 

44 

46

50 

48 

48

50 

50

50 

50 

45 

41 

48

Dec.

*54 

52 

52 

52 

50

52 

50 

50 

50 

50

52 

52 

52 

50 

50

50 

50 

50 

50 

50

48

48 

50 

48 

38

42 

45 

46 

43 

44 

45

Jan.

46 

45 

44 

40 

37

40 

*43 

45 

46 

46

45

45 

45 

44 

43

41 

43 

45 

47 

49

50 

50 

50 

49 

47

45 

45 

45 

45 

45 

45

Feb.

44 

47 

52 

*52 

47

49 

52 

52 

52 

54

54 

54 

54 

52 

48

46 

45 

43

43

44

45 

45 

45 

46 

46

46 

45 

46

Month

Ooto 

Move 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

46 

*45 

46 

46

47

48 

48 

50 

50 

52

52 

50 

50 

50 

50

52 

54 

54 

56 

58

60 

60 

60 

60 

58

58 

56 

58 

60 

60 

60

Apr.

60 

60 

60 

62 

*64

69 

78 

78 

78 

71

78 

96 

101 

90 

96

104 

116 

119 

119 

135

146 

180 

243 

278 

315

366 

366 

390 

476 

525

Secondfoot-days

1,918 

1,482 

1,515

55,816 '

Ij395 

1,348 1,654" 

5,019 

13,452 

17,479 

9,860 

3,936 

2,250

61,308

May

389 

383 

467 

528 

485

455 

401 

377 

371 

377

389 

467 

461 

431 

491

497 

479 

473 

437 

443

407 

377 

365 

395 

401

479 

449 

431 

443 

467 

437,

Maximum

73 

57 

54

1,280

50 

54 

60 

525 

528 

924 

503 

176 

84

924

June

377 

335 

3C5 

377 

365

443 

541 

528 

443 

461

491 

600 

652 

742 

749

788 

847 

910 

924 

782

742 

664 

697 

710 

541

548 

528 

491 

455 

443

July

431 

437 

419 

419 

413

413 

491 

425 

389 

503

425 

383 

365 

335 

317

293 

275 

264 

264 

258

253 

236 

226 

231 

236

220 

207 

198 

189 

180 

165

Minimum

52 

41 

38

29

37 

43 

45 

60 

365 

305 

165 

82 

60

37

Aug.

161 

165 

168 

176 

168

161 

157 

153 

157 

161

149 

138 

138 

138 

134

127 

127 

131 

113 

106

102 

95 

95 

93 

93

93 

93 

91 

87 

84 

82

Mean

61.0 

49.4 

48.9

153

45.0 

48.1 

53.4 

167 

434 

583 

318 

127 

75.0

168

Sept.

80 

80 

80 

78 

82

82 

78 

77 

78 

80

80 

84 

78 

80 

77

75 

75 

74 

74 

74

72 

64 

61 

60 

64

67 

70 

72 

77 

77

Runoff In 

acre -feet

3,800 

2,940

3,000

110,700

2,770 

2,670 

3,28O 

9,960 

26,680 

34,670 

19,560 

7,810 

4,460

121,600

Peak discharge (base, 800 see.-ft.).- June 17 (8 a.m.) 980 sec -ft.; June 24 (5 a.m.) 820 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Mote.- No gage-height record Nov. 6 to Apr. 4 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 4 discharge measurements, weather records, and 

records for stations on nearby streams.
132 GUNNISON RIVER BASIN

Sapinero Creek at Sapinero, Colo.

Location.- Water-stage recorder, lat. 38°28'30", long. 107°18'00", in sec. 28, T. 49 N., 

H . 4 w., 50 feet upstream from bridge on U. S. Highway 50, 500 feet upstream from 

mouth, and five-eighths of a mile northeast of Sapinero.

Drainage area.- 85.5 square miles.

Records available.- October 1910 to September 1914, October 1945 to September 1949.

Extremes.- Maximum discharge during year, 510 second-feet June 18 (gage height, 4.29 feet), 

from rating curve extended above 370 second-feet; minimum daily, 2.7 second-feet Oct. 9, 

10.

1910-14, 1945-49: Maximum discharge, 892 second-feet May 22, 1948 (gage height, 4.49 

feet), from rating curve extended above 300 second-feet; minimum daily, 0.6 second-foot 

Sept. 16, 1948.

Remarks.- Records good except those for June 18 to July 15 and those for periods of ice 

effect or no gage-height record, which are fair. Diversions above Station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.0 

4.6 

4.6 

3.3 

3.7

6.4 

4.0 

3.3 

2.7 

2.7

5.2 

9.4 

8.8 

8.8 

8.8

8.8 

8.8 

8.2 

8.2 

8.8

8.8 

8.8 

8.2

7.6 

7.6

6.4 

6.4 

7.6 

8.2 

7.6 

7.6

Nov.

*7.6 

7.0 

8.2 

8.4 

8.2

8.0 

8.0 

8.0 

8.2 

8.4

8.6

8.6 

8.6 

8.4 

8.2

8.0 

.6 

.6 

.6 

.8

.6 

.6

.4 

.4 

.6

.6 

.6 

.0 

*6.4 

7.0

Dec.

8.0 

8.6 

9.0 

9.4 

9.2

9.2

9.0 

8.6 

8.6 

8.6

8.8 

8.8 

9.0 

8.8 

8 . 6

8.0 

8.6 

8.2 

8.2 

8.6

8.8 

8.8 

8.6 

8.0 

7.6

8.2 

8.6 

8.4 

8.2 

7.8 

8.0

Jan.

8.2 

8.4

*8.2 

7.4 

7.2

7.8 

8.0 

8.2 

8.4 

8.6

8.6 

8.6 

8.4 

8.0 

7.2

7.0 

6.8 

6.8 

7.0 

7.2

7.2 

7.4

7.4 

7.6 

7.4

7.4 

7.0 

6.4 

5.8 

5.8 

*6.0

Feb.

6.6 

6.6 

6.8 

6.8 

6.8

6.0 

6.6 

6.8 

6.4 

6.8

7.6 

8.0 

8.0 

7.6 

7.6

8.0 

8.6 

8.8 

9.0 

9.2

9.4 

9.4 

9.6 

9.6 

9.4

9.4 

9.2 

*9.2

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

Mstv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

9.2 

9.4

10 

10 

9.6

9.8 

9.6 

9.2 

9.2 

9.4

9.6 

10

11 

12 

14

15 

14 

22 

31 

33

*35 

30 

18 

29 

32

21 

19 

15 

15 

15 

14

Apr.

12 

10 

11 

15 

18

32 

52

70 

64

61

59 

92

120 

*108 

102

117 

152 

182 

163 

198

190 

234 

266 

306 

306

290 

250 

£42 

286 

258

Secondfoot-days

207.9 

234.2 

264.8

32,133.3

231.4 

223.8 

510.0 

4,266 

8,194 

9,356 

1,854 

386.0 

178.1

25,906.2

May

194 

210 

306 

318 

262

246 

210 

186 

166 

190

230 

278

274 

294 

350

358 

306 

270 

238 

250

206 

178 

186 

234 

294

346 

358 

322 

318 

318 

298

Maximum

9.4 

8.6 

9.4

842

8.6 

9.6 

35 

306 

358 

474 

184 

28 

8.6

474

June

266 

202 

170 

186 

230

242 

242 

262

274 

302

338 

346 

366 

366 

350

354 

402 

474 

452 

432

400 

372

384 

388 

320

288 

272 

248 

220 

208

July

164 

173 

159 

145 

128

110 

95 

80 

72 

70

64 

56 

50 

46 

45

34 

32 

25

19 

21

23

19 

17 

35 

35

25 

23 

23

20 

16 

10

Minimum

2.7 

6.4 

7.6

.6

5.8 

6.0 

9.2

10 

166 

170 

10 

4.5 

3.5

2.7

Aug.

5.9 

4.5 

5.2 

5.6 

9.2

13 

13 

18 

20 

28

20 

19 

17 

16 

14

13 

14 

16 

13 

12

11 

11 

10 

12 

11

11 

9.8 

9.2 

8.6 

8.0 

8.0

Mean

6.71 

7.81 

8.54

87.8

7.46 

7.99 

16.5 

142 

264 

312 

59.8 

12.5 

5.94

71.0

Sept.

8.0 

8.0 

8.0 

7.6 

7.6

7.6 

6.6 

4.8 

4.5 

5.2

7.0 

8.6 

8.0 

8.6 

7.6

4.5 

3.7 

3.5 

3.5 

4.3

3.9

4.1 

4.3 

4.5 

4.8

4.8 

4.8 

4.8 

7.3 

7,6

Runoff In 

acre-feet

412 

465 

525

63,730

459 

444 

1,010 

8,460 

16,250 

18,560 

3,680 

766 

353

51,380

Peak discharge (base, 300 sec. -ft.).- Apr. 24 (9:30 p.m.) 358 sec. -ft.) May 4 (3 a.m.) 358 sec.-

ft.} May 16 13 a.m.J 398 sec.-ft. ; May 27 (l a.m.) 378 sec.-ft.; June 18 (3 p.m.) 510 sec.-ft.; 

June 23 (11 p.m.) 487 sec.-ft.

* Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by Ice Nov. 4 to Mar. 23 (no gage-height record Nov. 9 

to Mar. 2O; discharge computed on basis of 4 discharge measurements, weather records, and records 

for stations on nearby streams.)
GUNNISON RIVER BASIN 

Lake Fork at Gateview, Colo.

133

Location.- Water-stage recorder, lat. 38°17'50", long. 107°13'25", In sec. 29, T. 47 N., 

K. 3 w., at old village of Gateview, a quarter of a mile upstream from Indian Creek and 

about 15 miles upstream from mouth. Datum of gage Is 7,827.66 feet above mean sea level, 

datum of 1929.

Drainage area.- 370 square miles.

Records available.- April 1938 to September 1949 (no winter records 1939, 1943, 1944).

Extremes.- Maximum discharge during year, 2,360 second-feet June 17 (gage height, 4.23 

reet); minimum daily, 32 second-feet Feb. 2, 6.

1938-49: Maximum discharge, 2,620 second-feet June 21, 1938 (gage height, 6.00 feet, 

present datum), from rating curve extended above 1,800 second-feet; minimum daily, 28 

second-feet Feb. 18, 1942.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are fair. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

116 

HZ 

IDE 

107 

108

112 

107 

107 

105 

103

102 

102 

98 

96 

96

93 

92 

90 

92 

93

92 

87 

87 

86 

84

84 

82 

86 

86 

86 

86

Nov.

86 

84 

80 

76 

*68

72 

74 

74 

64 

72

76 

70 

68 

70 

70

72 

80 

70 

64 

78

80 

80 

82 

80 

80

82

80 

70 

74 

76

Dec.

*80 

76 

78 

80 

76

74 

70 

80 

72 

72

78 

78 

72 

72 

74

70 

70 

70 

72 

70

76 

76 

76 

64 

56

64 

66 

68

66 

64 

64

Jan.

66 

68 

66 

56 

52

54 

*56 

56 

56 

56

58 

60 

56 

54 

50

48 

48 

48 

50 

50

52 

52 

52

50 

50

48 

47 

48 

40 

35 

36

Feb.

34 

32 

34 

*35 

35

32 

35 

36 

36 

34

35 

38 

38

37 

37

40 

38 

38 

38 

42

44 

43 

42 

45 

49

48 

46 

48

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

50 

*50 

50 

48 

46

46 

48 

50 

47 

49

50 

52 

52 

50 

50

52 

54 

54 

52 

52

54 

56 

56 

56 

54

52 

52 

56 

54 

54 

56

Apr.

60 

58 

58 

60 

*64

80 

105 

114 

116 

112

110 

125 

145 

145 

143

154 

173 

197 

197 

203

215 

240 

310 

390 

460

500 

490 

445 

465 

495

Secondfoot-days

2,985 

2,252 

2,224

120,532

1,618 

1,089 

1,602 

6,429 

20,790 

41,788 

29,194 

6,833 

3,151

119,955

'May

440 

430 

515 

572 

535

515 

465 

415 

395 

450

495 

567 

562 

556 

695

716 

709 

695 

660 

654

594 

562 

594 

695 

744

1,080 

1,070 

1,040 

1,070 

1,180 

1,120

Maximum

116 

86 

80

2,210

68 

49 

56 

500 

1,180 

2,140 

1,610 

347 

132

2,140

June

920 

751 

723

737

765 

772 

758 

744 

848

1,150 

1,300 

1,560 

1,630 

1,660

1,750 

2,020 

2,100 

2,140 

2,020

1,990 

1,990 

1,950 

1,880 

1,430

1,490 

1,520 

1,540 

1,460 

1,460

July

1,410 

1,410 

1,430 

1,520 

1,420

1,350 

1,400 

1,370 

1,360 

1,610

1,470 

1,310 

1,170 

1,100 

968

760 

725 

690 

683 

704

648 

590 

540 

530 

530

480 

451 

424 

399 

379 

363

Minimum

82 

64 

56

39

35 

32 

46 

58 

395 

723 

363 

126 

87

32

Aug.

347 

335 

347 

327 

311

299 

303 

303 

303 

287

267 

251 

235 

215 

201

190 

187 

187 

175 

168

160 

155 

152 

148 

145

148 

148 

145 

138

ibo

126

Mean

96.3 

75.1 

71.7

329

52.2 

38.9 

51.7 

214 

671 

1,393 

942 

220 

105

329

Sept.

124 

132 

126 

120 

118

118 

112 

110 

110 

110

116 

120 

116 

116 

112

108 

102 

100 

96 

94

90 

90 

88 

87 

87

87 

87 

87 

96 

92

Runof t in 

acre -feet

5,920 

4,470 

4,410

239,100

3,210 

2,160 

3,180 

12,750 

41,240 

82,890 

57,910 

13,550 

6,250

237,900

Peak discharge (base, 1,350 sec. -ft.).- June 17 (12 p.m.) 2,360 sec. -ft.

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 3 to Apr. 6 (no gage-height record Nov. 20, 

21, Nov. 28 to Apr. 4; discharge computed on basis of 4 discharge measurements, weather records, and 

records for stations on nearby streams).
134 GUNNISON RIVER BASIN

Curecanti Creek near Sapinero, Colo.

Location.- Water-stage recorder, lat. 38°29', long. 107°25', In sec. 21, T. 49 N., R. 5 

W., faU feet upstream from bridge on State Highway 92, 2| miles upstream from mouth, 

and 6 miles west of Sapinero.

Drainage area.- 31.8 square miles.

Records available.- April 1946 to September 1949.

Extremes.- Maximum discharge during year, 304 second-feet June 18 (gage height, 3.80 

i'eet) , from rating curve extended above 200 second-feet; minimum daily recorded, 4.0 

second-feet Oct. 18, 25, Sept. 7-9, 17-26.

1946-49: Maximum discharge, 422 second-feet May 22, 1948, from rating curve extended above 190 second-feet; maximum gage height, 5.62 feet May 17, 1948; minimum 

daily discharge recorded, 2.0 second-feet Aug. 1-3, 1948.

Remarks.- Records fair after Apr. 14 and poor before.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

4.3 

4.5

4.7 

4.9 

5.0

5.2 

5.0 

5.2 

5.6 

5.5

5.5 

5.2 

4.9 

4.6 

4.9

4.6 

4.3 

4.0 

4.9 

4.9

4.9

4.6 

4.3 

4.3 

4.0

4.3

4.3

5.8 

5.2 

6.2 

5.5

Nov.

5.2 

5,2 

6.2 

6.6 

6.2

5.4 

5.6 

5.6 

5.6 

5.8

6.0 

6.0 

6.0 

5.8 

5.6

5.4 

5.2 

5.2 

5.2 

5.0

5.2 

5.2 

5.0 

5.0 

5.0

5.0 

4.5 

4.3 

4.1 

4.4

Dec.

> 5.0

Jan.

> 4.7

Feb.

4.5

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Ma v

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 ...............

Mar.

> 6.5

Apr.

6.0 

6.5 

7.0 

14

12

15 

18 

22 

21 

19

19 

25 

42

40

37

41

54 

70 

72 

78

76 

95 

118 

138

150

150 

140 

140 

156

136

Secondfoot -day s

151.1 

160.5 

155.0

15,384.9

145.7

126.0 

201.5 

1,917.5 

4,263 

4,940 

1,009 

242.4 

144.4

13,456.1

May

111 

113 

160 

174 

170

146 

109 

88 

82 

95

114 

132 

132

140 

166

156 

142 

126 

113 

122

104 

93 

93

122 

152

186 

190 

176 

192 

188 

176

Maximum

6.2 

6.6

373

156 

192

273 

77 

13 

8.6

273

June

160 

124 

111 

114 

128

142 

136 

146 

156 

160

178 

172 

178 

176 

170

174 

200 

273 

253 

240

190 

182 

188 

207 

174

160 

138 

120 

102 

88

July

77 

74 

71 

67 

58

50 

51 

43 

39

37

34

32 

28 

26

23

22 

20 

20 

20 

20

20 

17 

16 

24 

24

20 

18 

16 

15 

14 

13

Minimum

4.0 

4.1

2.0

6.0 

82 

88 

13 

4.6 

4.0

-

Aug.

12 

11 

11 

12 

9.9

9.0 

11 

12 

13

13

9.9 

8.3

7.6 

6.9

6.6

6.2

7.6 

8.3 

6.2 

5.8

5.2 

4.9 

5.5 

5.8 

5.2

5.2 

4.9 

4.6 

4.6 

4.6 

4.6

Mean

4.87 

5.35

5.0

42.0

4,7 

4.5 

6.5 

63.9 

138 

165 

32.5 

7.82 

4.81

36.9

Sept.

.6 

.9

.6 

.6 

.6

.3

.0 

.0 

.0 

.9

>.'2

!g

.6 

.0 

.0

.0 

.0

.0 

.0 

.0 

.0 

.0

.0 

.3 

.6

8.6 

8.3

Runoff In 

acre-feet

300 

318

307

30,510

289 

250 

400 

3,800 

8,460 

9,800 

2,000 

481 

286

26,690

Peak discharge (base, 250 see.-ft.).- June 18 (6 p.m.) 304 sec.-ft.; June 23 (11:30 p.m.) 260 sec. 

ft.

Note.- Ho gage-height record Oct. 1-10, Dec. 30 to Apr. 13; discharge computed on basis of discharge measurement made Oct. 4, weather records, and records for stations on nearby streams. Stpgedlscharge relation affected by Ice Hov. 6 to Dec. 29.
GUNNISON RIVER BASIN 135

Cimarron Creek below Squaw Creek, at Cimarron, Colo.

Location - Water-stage recorder, lat. 38°26'40", long. 107°33'30", in sec. 5, T. 48 N., 

K. b W., 850 feet downstream from Squaw Creek, a quarter of a mile northeast of 

Cimarron, and three-quarters of a mile upstream from mouth. Datum of gage is 6,864.10 

feet above mean sea level, datum of 1929.

Drainage area.- 232 square miles.

Records available.- April 1943 to September 1949.

Extremes.- Maximum discharge during year, 1,700 second-feet June 19 (gage height, 7.40 

feet) , from rating curve extended above 1,200 second-feet; minimum daily, 16 secondfeet Aug. 31, Sept. 23, 27.

1943-49: Maximum discharge, that of June 19, 1949; minimum daily, 12 second-feet 

Sept. 11, 12, 1948.

Remarks.- Records bood except those for period of ice effect or no gage-height record, 

which are fair. Records of diversion above station to Uneornpahgre River Basin by 

Cimarron and Owl Creek ditches were not obtained during water year 1948-49. Several 

small diversions in Cimarron Creek Basin for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

50 

47 

44 

46 

58

58

52 

55 

59 

58

38

31 

30 

32 

32

28 

25 

29 

31 

33

32 

28 

25 

24 

24

27 

27 

29 

27 

29 

28

Nov.

27 

22 

25 

30 

*22

21 

29 

31 

40 

42

44 

47 

50 

51 

52

52 

51 

*50 

47 

44

47 

47 

48 

48 

46

44 

43 

41 

44 

47

Dec.

50 

52 

*51 

48 

46

47 

43 

44 

41 

42

39 

40 

40 

40 

38

36 

*36 

36 

33 

33

35 

34

37 

37 

33

29 

30 

32' 

33 

30 

27

Jan.

32

31 

27 

29 

31

34 

35 

31 

33 

35

37 

33 

33 

*34 

32

30 

32 

34 

32

37

35 

37 

36 

34 

35

*37 

36 

35 

36 

38 

39

Feb.

37 

39 

41 

*40 

38

37 

46 

36 

38 

40

42 

40 

38 

37

37

38 

39 

40 

41 

42

40

40 

*41 

43 

40

37 

36 

38

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar.

36 

36 

35 

*35 

35

37 

36 

37 

35

32

31

30 

29 

*28 

33

38 

41 

39 

44 

48

49 

40 

39 

34 

34

35 

33 

46 

42 

37 

37

Apr.

39 

37 

44 

*54

64

90 

108 

122 

126

107

114 

131 

145 

131 

124

142

165 

177 

196 

202

229 

265 

310 

315 

298

302 

288 

283 

342 

322

Secondfoot-days

1,136 

1,232 

1,192

57,488

1,050 

1,101 

1,141 

5,272 

11,870 

21,743 

8,060 

1,021 

637

55,455

May

247 

300 

384 

405 

387

387 

295 

241 

225

245

288

362 

33O 

348 

496

500 

447 

417 

375 

387

272 

243 

286 

350 

441

571 

521 

521 

528 

575 

496

Maximum

59 

52

52

1,340

39 

46 

49 

342 

575 

1,290 

599 

56 

29

1,290

Peak discharge (base, 1,050 sec. -ft.).- June 19 (3 a.m.) 1,700 sec

June

426 

305 

254 

286 

332

414 

435

414 

411 

493

620 

669 

795 

818 

894

1,020 

1,240 

1,270 

1,290 

1,130

1,050 

980

1,070 

1,130 

750

741 

710 

646 

595 

555

July

555 

559 

599 

571

507

453 

593 

378 

365 

414

342 

308 

263 

241

206

172 

160 

143 

137 

141

134 

113 

90 

88 

118

97

76 

67 

59 

55 

56

Minimum

24 

21

27

12

27 

36 

28 

37 

225 

254 

55 

16 

16

16

.-ft.

Aug.

49 

40 

44 

37 

33

35 

36 

39 

56 

56

52 

51 

45

37 

34

33

31 

27 

24 

22

21 

20 

20

y27

27 

21 

19 

20

19 

16

Mean

36.6 

41.1 

38.5

157

33.9 

39.3 

36.8 

176 

383 

725 

260 

32.9 

21.2

152

Sept.

17 

22 

21 

19 

20

20 

20 

20 

20 

24

29 

28 

29 

29 

26

25 

22 

22 

20 

17

18 

17 

16 

18 

18

18 

16 

19 

27 

20

Runoff In 

acre-feet

2,250 

2,440 

2,360

114,000

2,080 

2,180 

2,260 

10,460 

23,540 

43,130 

15,990 

2,030 

1,260

110,000

Note . - Stage-discharge relation affected by ice Nov. 10 to Mar. 15 (no gage-height record Nov. 30 

to Mar. 13: discharge computed on basis of 7 discharge measurements, weather records, and records for 

stations on nearby streams).

939921 O - 51 - 10
136 GUNNISON RIVER BASIN

Crystal Creek near Maher, Colo.

Location.- Water-stage recorder, lat. 38°33' , long. 107°30', in SE-p sec. 35, T. 50 N., 

FT! b w., 1 mile downstream from North Fork and 7 miles southeast of Maher.

Drainage area.- 39.1 sqaare miles.

Records available.- October 1916 to September 1919 (no winter records), July 1945 to 

September 1949.

Extremes.- Maximum discharge during year, 279 second-feet June 23 (gage height, 3.93 

feet); minimum daily, 4.6 second-feet Sept. 21-24, 27, 28.

1916-19, 1945-49: Maximum discharge, 542 second-feet Apr. 29, 1948 (gage height, 

5.05 feet), from rating curve extended above 200 second-feet; no flow at times during August 1918.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnicn are fair. One diversion above station for irrigation.

Revisions.- W 1039: Drainage area.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.0 

5.0 

5.0 

5.0 

5.S

5.8 

5.3 

5.6 

5.8 

5.6

5.6 

5.8 

5.8 

5.8 

5.8

5.6 

5.6 

5.3 

5.8 

5.6

5.3 

5.3 

5.3 

5.0 

5.0

5.0 

5.0 

5.6 

5.3 

5.8 

5.6

Nov.

5.6 

5.6 

5.8 

5.6 

5.8

6.7 

6.0 

6.7 

*b7.8 

b7.0

6.7 

b6.0 

b6.0 

b6.0 

b6.0

b6.3 

5.8 

b5.5 

b5.3 

b6. 3

b6.3 

5.8 

5.6 

5.6 

5.6

5.6 

5.6 

5.0 

4.8 

5.4

Dec.

.0

.2 

.6 

.0

.0 

* .8 

.8 

.8 

.8

.8 

.8 

.6 

.4 

.2

.0

.'o

.0

.2

.2 

.0 

.6

;'.2

.6 

.8

'.6

Jan.

6.8 

7.0 

6.8 

6.6 

6.2

6.4 

6.6 

6.8 

6.8 

6.8

*6.8 

6.6 

6.4 

6.2 

6.0

6.0 

5.8 

6.0 

6.0 

6.2

6.2 

6.4 

6.4 

6.4 

K.2

6.0 

5.3 

5.4 

5.2 

5.2 

5.4

Feb.

5.6 

5.6 

5.6 

5.6 

5.2

4.8 

*5.1 

5.2 

5.2 

5.6

5.8 

5.0 

6.0 

5.8 

5.8

6.2 

6.4 

6.6 

6.8 

7.0

7.0 

7.2 

7.2 

7.2 

7.2

7.2 

7.0 

7.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mau

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

7.6 

8.0 

8.0 

8.0 

7.8

8.0 

8.0 

8.0 

*8.4 

8.4

8.6 

8.8 

9.2 

9.4 

10

11 

11 

11 

12 

13

11 

*10 

7.8 

8.5 

12

7.8 

10 

7.0 

6.7 

6.7 

7.4

Apr.

6.3 

7.4 

7.0 

13 

11

14 

18 

21 

16 

14

14 

21 

27 

26 

29

39 

56 

68 

74 

84

93 

111 

139 

160 

164

162 

154 

156 

168 

133

Secondfoot -days

168.6 

177.8 

221.6

15,682.6

193.4 

172.1 

279.1 

2,005.7 

4,164 

3,645 

7£3 

308.3 

162.0

12,220.6

May

105 

121 

170 

186 

178

156 

118 

98 

93

107

125 

140 

131 

142 

170

162 

142 

125 

115 

117

104 

93 

101 

126

1K1

166 

159 

141 

145 

141 

126

Maximum

5.8 

7.8 

8.0

412

7.0 

7.2 

13 

168 

186 

215 

36 

15 

6.4

215

June

112 

90 

85 

96 

112

115 

110 

115 

121 

131

145 

134 

145 

129 

129

140 

164 

215 

194 

164

140 

121 

136 

145 

109

92 

84 

72 

58 

42

July

35

34 

36

33 

32

30 

30 

29 

31 

31

30 

26 

24 

22 

19

17 

15 

14 

13 

15

23 

18 

19 

26 

26

20 

17 

16 

14 

14 

14

Minimum

5.0 

4.8 

6.0

4.0

5.2 

4.8 

6.7 

6.3 

93 

42 

13 

6.1 

4.6

4.6

Aug.

12 

12 

13 

13 

12

12 

15 

14 

15 

15

12 

11 

10 

9.8 

9.4

9.4 

9.8 

9.8 

8.2 

7.8

.4 

.4 

.8 

.8 

.4

.4 

.0 

.0 

.4 

.4

Mean

5.44 

5.93 

7.15

42.8

6.24 

6.15 

9.00 

66.9 

134 

122 

23.3 

9.95 

5.40

33.5

Sept.

6.4 

6.4 

6.4 

5.8 

5.8

5.2 

5.2 

5.2 

5.2 

5.8

6.1 

5.8 

5.5 

6.1 

5.5

5.2 

5.2 

5.2 

4.9 

4.9

4.6 

4.6 

4.6 

4.6 

4.9

4.9 

4.6 

4.6 

6.4 

6.4

Runoff In 

acre-feet

334 

353 

440

31,100

384 

341 

554 

3,980 

8,260 

7,230 

1,430 

612 

321

24,240

Peak discharge (base, 160 sec.-ft.).- Apr. 28 (8 p.m.) 228 sec.-ft.j May 4 (10 p.m.) 212 sec.-ft. 

May 14 (7:30 p7m.) 182 sec.-ft.; May 26 (9 p.m.) 194 sec.-ft.; June 17 (10 p.m.) 248 sec.-ft.; June 

23 (10 p.m.) "279 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge age-scarge relation reaonaffected aee by ice. c

Note.- No gage-height record Nov. 29 to Mar. 21- (stage-discharge relation affected by ice du 

most, of period); discharge computed on basis of 4 discharge measurements, weather records, and 

ords for stations on nearby streams.

ring 

rec-
GONNISON RIVER BASIN 

Smith Fork near Crawford, Colb.

137

Location.- Water-stage recorder, lat. 38°44', long. 107°31', In sec. 24, T. 15 S., R. 

91 w., just upstream from Second Creek and 6 miles northeast of Crawford. Altitude 

of gage, 7,'200 feet (by barometer).

Drainage area.- 42.3 square miles.

Records available.- February 1941 to July 1944, April 1945 to September 1949. (April 

193b to September 1940 in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 256 second-feet May 27 (gage height, 4.33 

feet), from rating curve extended above 220 second-feet; minimum daily, 4.5 secondfeet Nov. 28.

1941-44, 1945-49: Maximum discharge, 604 second-feet May 19, 1948; maximum gage 

height, 5.34 feet May 21, 1948; minimum daily discharge, 2.0 second-feet Feb. 11, 1941.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. A few small diversions above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

e

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.5 

8.2 

8.2 

8.6 

11

11 

9.5 

8.2 

8.2 

8.2

8.2 

*8.2 

8.2 

8.2 

8.2

8.2 

8.2 

8.2 

8.2 

8.2

8.2 

8.2 

8.2 

8.2 

8.2

8.2 

7.0 

6.2 

6.2 

7.0 

7.8

Nov.

7.8 

7.8 

8.2 

b8. 8 

b7.6

b6. 4 

be. 2 

b8.0 

6.2 

*7.9

7.6 

b7.0 

b6.4 

b6.6 

b6.8

6.8 

6.8 

b6.4 

b5.6 

7.2

6.8 

6.4 

7.4

7.0 

6.6

6.0 

6.0 

4.5 

5.0 

5.6

Dec.

6.0 

5.8 

5.8 

6.0 

5.3

5.8 

*6.0 

6.0 

6.0 

6.2

6.2 

6.0 

6.0 

6.0 

5.8

5.4 

6.0 

5.8 

5.8 

6.0

6.2 

6.4

6.6 

6.4 

6.0

6.2 

7.4 

7.2 

6.6 

6.2 

6.6

Jan.

6.8 

6.6 

6.2 

5.8 

6.2

6.4 

6.6 

6.6 

6.8

e.e

*6.8 

6.8 

6.8 

6.8 

6.6

5.8 

5.6 

6.4 

6.4 

6.6

6.8 

6.8 

6.8 

6.8 

6.6

6.4 

6.6 

6.6 

5.4 

5.6 

6.2

Feb.

6.0 

5.8 

5.8 

5.8 

5.4

5.8 

*5.4 

5.4 

5.4

5.6

5.4 

5.4 

5.4 

5.4 

5.2

5.2 

5.0 

5.2 

5.4 

5.4

5.4 

5.4 

5.4 

5.6 

5.8

5.6

6.0 

5.8

Month

Ooto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendap year 1946

ter year 1948-49 .......................

Mar.

6.0 

5.8 

6.2 

6.6

7.0

6.6 

6.8 

6.8 

*6.8 

6.0

6.8 

6.8 

7.2 

6.8 

7.2

9.0 

10 

13 

16 

21

17 

15 

12

12 

11

10 

9.0 

8.2 

8.2 

8.2 

8.6

Apr.

8.2 

8.6 

7.9 

9.0 

12

16 

25 

29 

22

21

22 

36 

51 

45 

40

51 

70 

79 

80 

96

91

109 

128 

158 

190

193 

185 

188 

196 

182

Secondfoot-days

256.0 

205.4

190.4

18,911.8

200.0 

154.4 

283.4 

2,353.7 

5,349 

4,162 

1,215 

438.2 

231.1

15,043.6

Peak discharge (base, 260 sec. -ft. .- No peak above ba

May

153 

158 

215 

214 

198

167 

130 

109 

97 

119

160 

177 

177 

182 

221

208 

182 

168 

150 

157

137 

129 

154 

174 

203

218 

221

197 

190 

194 

190

Maximum

11

8.8 

7.4

500

6.8 

6.0 

21 

198 

221 

204 

67 

22 

9.3

221

se.

June

164 

132 

107 

107 

126

128

123 

128 

136 

160

163 

160 

161 

161 

150

149 

164 

204 

196 

181

157 

142 

142 

137 

112

112 

102 

93 

85 

80

July

67 

60 

58 

60 

55

65 

54 

50 

50

50

48 

43 

39 

37 

34

32 

30 

30 

29 

28

28 

26

28 

33 

35

29 

27 

25 

23 

22 

20

Minimum

6,2 

4.5 

5.4

4.5

5.4 

5.0 

5.8 

7.9 

97 

80 

20 

9.0 

6.2

4.5

Aug.

19 

19

22 

20 

18

18 

19 

18 

13 

18

16 

16 

15 

14 

14

13 

14 

14 

12

11

11 

10 

11 

11 

11

10 

9.6 

9.3 

9.3 

9.0 

9.0

Mean

8.26 

6.85 

6.14

51.7

5.45 

5.51 

9.30 

78.5 

173 

139 

39.2 

14.1 

7.70

41.2

Sept.

9.3 

9.3 

9.0 

8.2 

8.2

7.9

7.9 

7.9 

7.9 

8.6

9.0 

8.2 

9.0 

9.0 

8.2

7.6 

7.6 

7.6 

7.6 

7.6

6.8 

6.5 

6.5 

6.4 

6.5

6.4 

6.2 

7.2 

6.5 

6.5

Runoff In 

acre-feet

508 

407 

378

37,510

397 

306 

572 

4,670 

10,610 

8,260 

2,410 

869 

458

29,840

Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 9, Nov. 20 to Mar. 8 (stage-discharge relation affected by ice 

during most of period); discharge computed on basis of 3 discharge measurements, weather records, and 

records for stations on nearby streams.
138 GUNNISON RIVER BASIN 

Iron Creek near Crawford, Colo.

Location.- Water-stage recorder, lat. 38°41' , long. 107°36' J in SW^- see. 13, T. 51 N. , 

IT! 7 W. , 600 feet downstream from Clear Fork and 1.8 miles southeast of Crawford.

Records available.- September 1947 to September 1949.

Extremes.- Maximum discharge during year, 242 second-feet July 25 (gage height, 4.86

feet), from rating curve extended above 100 second-feet on basis of slope-area determination at gage height, 5.70 feet; minimum daily, 7.5 second-feet Jan. 18, 30, Feb. 

1, 15.

1947-49: Maximum discharge, 367 second-feet Oct. 14, 1947 (gage height, 6.05 feet), 

from rating curve extended above 100 second-feet on basis of slope-area determination 

at gage height 5.70 feet; minimum daily, 6.9 second-feet Sept. 19, 20, 1947.

Remarks.- Records fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

l 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.5 

9.0 

9.0 

9.0 

10

11 

11 

12 

12 

12

12 

11 

11 

10 

10

10

10 

10 

10

11 

11

12 

12 

12 

12

12 

12

13 

12 

12 

12

Nov.

12 

12

12 

13 

10

9.5 

12 

11 

*9.0 

10

12 

12 

12 

12 

12

12 

12 

9.5 

9.0 

9.5

10 

10 

10 

11 

12

11 

10 

b9.0 

b9.5 

blO

Dec.

9.5 

9.5 

9.5 

9.0 

9.0

8.6 

8.6 

*9.5 

b9.0 

10

9.5 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

10 

9.5 

b8.5

blO 

b9.0 

b8.8 

b8.6 

b8.4 

blO

Jan.

9.0 

9.0 

b8.5 

aS.O 

aS.O

a8.5 

a9.0 

a9.5 

a9.5 

alO

*10 

8.3 

8.3 

8.6 

8.3

bS.O 

aS.O 

a7.5 

aS.O 

a9.0

alO 

a9.0 

a9.0 

*9.0 

9.0

9.0 

9.0 

9.0 

b8.5 

b7.5 

b9.0

Feb.

b7.5 

b9.0 

b8.5 

9.0 

8.3

9.5 

*10 

9.0 

b9.0 

bS.O

9.5

8.0 

8.0 

8.0 

b7.5

8.3 

9.0 

9.0 

9.0 

8.6

8.0

8.6 

8.6 

8.6

8.6 

8.3 

9.0

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1943

ter year 1948-49 .......................

Mar.

9.0 

9.0 

10 

8.6 

all

alO 

a!2 

a!2 

*12 

12

14 

14

17 

18

26

35 

25 

20 

20 

19

19

16 

14 

14 

13

15 

14 

15 

14 

16 

14

Apr.

15

15 

32 

39 

31

27 

26

28 

27 

22

21 

22 

24 

22 

20

21 

23

24 

24 

27

30 

31 

32 

36 

37

39 

35 

29 

24 

25

Secondfoot-days

341.5 

325.0 

283.5

7,379.8

271.0 

241.0 

277.6 

808 

894 

1,264 

818 

332.6 

299.6

May

19 

16 

19 

20 

21

30 

27 

27 

24

21

25 

27 

27 

28

32 

33 

39 

34 

35

37 

39 

35 

27 

27

30 

32 

33 

36 

38 

35

Maximum

13 

13 

10

84

10 

10 

35 

39 

39 

85 

54 

12 

11

June

34 

37 

33 

32 

35

40 

39 

51 

42 

42

39 

39 

42 

39

36

39 

47 

85 

71 

48

35 

32 

48 

58 

45

40 

39 

35 

32 

30

July

30 

27 

27 

25

26

44 

54 

43 

41 

49

37 

27 

24 

22 

21

17 

17 

19 

19 

20

24 

18 

13 

12 

44

35 

22 

18 

17 

14 

12

Minimum

9.0 

9.0 

8.4

7.2

7.5 

7.5 

8.6 

15

16 

30 

12

8.6 

8.6

7 R

Aug.

12 

12 

12 

12 

12

11 

12 

12 

12

12

12 

11

11 

11 

10

10 

11 

10 

10 

10

9.5

8.6 

9.5 

10 

10

10 

10 

10 

10 

10 

10

Mean

11.0 

10.8 

9.15

20.2

8.74 

8.61 

15.4 

26.9 

28.8 

42.1 

26.4 

10.7 

9.99 .

17.4

Sept.

10 

10

10 

10 

10

10 

10 

10 

10 

10

10 

10

1111 11

11

10 

10 

10 

10

10 

10 

10 

9.5 

9.5

9.0 

8.6

9.0 

10 

10

Runoff in 

acre-feet

677 

645 

562

14,640

538 

478 

947 

1,600 

1,770 

2,510 

1,620 

660 

594

12. BOO

Peak discharge (base, 150 sec.-ft.).- July 25 (9 p.m.) 242 sec.-ft. 

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records anjj records for 

on nearby streams.

b 'Stage-discharge relation affected by Ice.
GUNNISON RIVER BASIN 139

East Muddy Creek near Bardine, Colo.

Location.- Water-stage recorder, lat. SS^l 1 , long. 10? 0 22', in sec. 17, T. 12 S., R. 89 

W.,5~feet from State Highway 133, a quarter of a mile downstream from Spring Creek, 

and 65- rnilps upstream from Bardine. Datum of gage is 6,654.78 feet above mean sea 

level, datum of 1929.

Drainage area.- 136 square miles.

Records available.- May 1935 to September 1949 (no winter records 1935-41).

Extremes.- Maximum discharge during year, 740 second-feet May 3 (gage height, 1.80 feet), 

from rating curve extended above 400 second-feet on basis of shape of former curve; 

minimum daily, 10 second-feet Nov. 19, 28.

1935-49: Maximum discharge, 2,190 second-feet May 13, 1941 (gage height, 3.41 

feet), from rating curve extended above 800 second-feet; minimum daily, 6 second-feet 

Aug. 28, 1936.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

whi ch are fair. Diversions above station for irrigation.

Rating table, water year 1948-49 r except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 12 to Nov. 4, June 5-13)

-0.1

0.0

.5 118

1.2

1.5

1.6

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

16 

16

17 

20

£3 

20 

16 

15 

15

15 *14 

14 

14 

14

14 

13 

13 

14 

14

13 

13 

13 

13 

14

13 

13 

14 

15 

16 

15

Nov.

14 

14 

15 

16 

12

11 

14 

12

13

14 

12 

13 

13

13

' 14 

15 

12 

10

13

11 

12 

14 

13 

13

13

13 

10 

11 

13

Dec.

14 

15 

15 

15

15

15 

*15 

15 

15

15

15 

15 

15 

15 

15

13 

15 

13 

13 

14

15 

15 

15 

16 

13

14 

16 

17 

17 

15 

14

Jan.

14 

15 

13 

13

13

14 

15 

15 

15 

*15

15 

15 

15 

15 

15

13 

13 

13 

14 

15

15 

15 

15 

15 

15

15 

15 

13 

12 

13 

14

Feb.

14 

14 

14 

14 

14

14 

14 

14 

14 

14

*14 

14 

13 

13 

13

13 

13 

13 

14 

14

14 

14 

14 

14 

15

15 

16 

16

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Peak discharge (base, 650 sec. -ft.).- May

Mar.

16 

16 

17 

17 

18

18 

17 

17 

18 

*18

17 

20 

18 

21 

21

22 

25 

29 

33

36

33 

38 

29 

26 

29

28 

22 

22 

21 

21 

21

Apr.

25 

26 

25 

28 

33

54 

70 

87 

83 

78

70 

103 

111 

100 

96

118 

145 

173 

191 

200

194 

251

303 

375 

434

458 

410 

395 

470 

482

Secondfoot-days

467 

384 

459

38,850.8

442 

392 

7O4 

5,588 

13,272 

8,078 

1,842 

641 

578

32,847

3 (10 p.m.)

May

370 

4OO 

558 

621 

500

390 

324

283 

287 

351

44O 

452 

434 

470 

60O

544 

452 

452 

400 

422

342 

315

333 

390 

440

482 

446 

458 

464 

452 

40O

Maximum

23 

16 

17

1,120

15 

16 38" 

482 

621 

342 

109 

23 

36

621

740 sec. -ft.

June

342

287 

247 

255 

283

299 

295 

333 

328 

333

342 

328 

338

295

291 

309 

324 

299 

283

259 

239 

243 

224 

194

179 

176 

162 

148 

132

July

109

103 

98

85

83 

98 

83 

74 

78

72 

70 

70 

66 

58

50 

47 

45 

52

49 

33

30 

36 

45

35 

30 

28 

25 

23 

23

Minimum

13 

10 

13

9.2

12 

13 

16 

25 

283 

132 

23 

18 

16

10

Aug.

22 

22

23 

23 

21

 21 

21 

23 

23 

21

21 

20

19 

19 

18

18 

18 

19 

19 

20

21 

20 

21 

21 

21-

23 

21 

21 

21 

21 

19

Mean

15.1 

12.8 

14.8

106

14.3

14.0 

22.7 

186 

428 

269 

59.4 

20.7 

19.3

90.0

Sept.

18 

19 

20 

21 

19

18 

18 

17 

17 

18

21 

36 

22 

25 

20

19 

18 

18 

18 

18

18 

17 

17 

17 

17

17 

16 

16 

18 

25

Runoff In 

acre-feet

926 

762 

910

77,050

877 

778 

1,400 

11,080 

26,320 

16,020 

3,650 

1,270 

1,150

65,140

; May 15 ( 1O p.m.) 684 sec. -ft.
140 GUNNISON RIVER BASIN

North Fork Gunnison River near Somerset, Colo.

Location.- Water-stage recorder, lat. 38°56', long. 107°26', in sec. 10, T. 13 S., R. 90 

 W., 300 feet from State Highway 135 and 2 miles east of Somerset. Datum of gage is 

6,038.6 feet above mean sea level, datum of 1929.

Drainage area.- 521 square miles.

Records available.- March 1934 to September 1949.

Average discharge.- 15 years, 469 second-feet.

Extremes.- Maximum discharge during year, 3,070 second-feet May 3 (gage height, 4.05 feet); 

minimum daily, 30 second-feet Nov. 19.

1934-49: Maximum discharge, 5,850 seeoniS-feet May 13, 1941 (gage height, 6.30 feet), 

from rating curve extended above 3,200 second-feet; minimum daily, 28 second-feet Sept. 

19, 1934.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Diversions above station for irrigation.

Bating tables, water year 1948-49 (gage height, in feet,

and discharge, in second-feet)

(Shifting-control method used Dec. 25 to Feb. 12, 

May 4-15, Sept. 1-30)

Oct. 1 to May 11 May 12 to Sept. 30

1.0 

1.2 

1.4 

1.7 

2.0

140

205

285

450

640

2.4 

2.9 

3.6

960

1,500

2,440

1.1 

1.4 

1.6 

1.8

78

125

210

295

405

2.2 

2.5 

3.1 

3.7

680

950

1,640

2,450

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

79 

73 

71 

70 

88

107 

86 

82 

80 

82

80 

79 

77 

77 

77

77 

73 

71 

71 

71

71 

70 

70 

68 

68

66 

66 

71 

75 

73 

71

Nov.

68 

68 

71 

82 

65

52 

79 

68 

41 

66

75 

64 

53 

60 

60

68 

75 

47 

30 

68

62 

52 

70 

65 

64

55 

59

40 

53 

60

Dec.

65 

62 

60 

62 

59

62 

62 

a64 

a62 

a64

a64 

a62 

a64 

a64 

a64

a56 

a66 

a60 

a60 

a64

a66 

a66 

a70 

a66 

62

66 

80 

77 

73 

66 

66

Jan.

73 

71 

66 

62 

64

68

70 

70 

70

71

71 

70 

71 

71 

71

60 

58 

68 

68 

70

71 

71 

70 

70 

70

66 

70 

70 

56 

62 

66

Feb.

64 

62 

62 

62 

59

58 

58 

59 

68 

64

62 

59 

59 

59 

56

58 

55 

58 

58

60

64 

65 

66 

68 

73

71 

75 

a74

Month

Octo 

Nove 

Dece

Ca

Janu 

Febn 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ti. ......................................

1. ......................................

3t. ............................... .....

smber. ..................................

ter year 1948-49 .........:.............

Mar.

a78 

a76 

a78 

a82 

a86

a82 

a88 

a86 

a 88 

88

84 

80 

79 

77 

88

107 

124 

122 

140 

164

158 

146 

137

117 

102

97 

95 

104 

100 

100 

90

Apr.

ICE 

109 

104 

109 

135

188 

257 

340 

310 

305

285 

384 

468 

384 

352

426 

564 

718 

766 

915

951

1,100 

1,290 

1,650 

1,980

2,020 

1,850 

1,850 

2,130 

2,200

Secondfoot-days

2,340 

1,840 

2,004

191,695

2,105 

1,756 

3,143 

24,242 

59,810 

52,500 

14,722 

3,922 

2,598

170,982

May

1,750 

1,880 

2,500 

2,550 

2,100

1,750 

1,450 

1,260 

1,240 

1,600

2,020 

2,210 

2,060 

2,200 

2,530

2,340 

1,980 

1,850 

1,770 

1,800

1,520 

1,410 

1,500 

1,670 

1,900

2,180 

2,170 

2,140 

2,240 

2,200 

2,040

Maximum

107 

82 

80

3,840

73 

75 

164 

2,200 

2,550 

2,580 

1,010 

177 

118

2,580

June

1,730 

1,400 

1,260 

1,450 

1,580

1,600 

1,540 

1,640 

1,730 

1,910

2,090 

2,100 

2,090 

1,980 

1,950

2,020 

2,320 

2,580 

2,350 

2,170

1/990 

1,840 

1,840 

1,730 

1,420

1,380 

1,320 

1,270 

1,150 

1,070

July

1,010 

960 

850 

796 

720

665 

728 

665 

598 

a590

a560 

a540 

a515 

a450 

a420

a370 

a335 

a315 

a310 

363

351 

310 

290 

315 

381

300 

254 

218 

195 

180 

168

Minimum

66 

30 

56

30

56 

55 

76 

102 

1,240 

1,070 

168 

96 

69

30

Aug.

159

153 

159 

153 

140

140

150 

162 

177 

159

142 

132 

125 

122 

115

115 

128 

132 

125 

112

108 

102 

102 

110 

105

105 

102 

98 

96 

96 

98

Mean "

75.5 

61.3 

64.6

524

67.9 

62.7 

101 

808 

1,929 

1,750 

475 

127 

86.6

468

Sept.

98 

112 

118 

98 

87

85 

82 

80 

80 

85

89 

118 

118 

110 

93

85 

80 

78 

76 

73

73 

71 

69 

69 

69

69 

69 

69 

85 

110

Runoff in 

acre-feet

4,640 

3,650 

3,970

380,200

4,180 

3,480 

6,230 

48,080 

118,600 

104,100 

29,200 

7,780 

5,150

339,100

Peak discharge (base, 2,400 sec.-ft.).- Apr. 28 (12 p.m. 

ec.-ft.; May 15 (11 p.m.) 2,880 sec.-ft.; May 30 [12 p.m.

2,470 sec.-ft.; May 3 (12 p.m.) 3,070 

sec.-ft " " ----- .-- ., ..raj ^ ij.<. p.m.; 2,450 sec.-ft.; June 18 (1 a.m.) 2,780

on anearbySItreams? reC°rd; dlsoharge computed on basis of weather records and records for stations
GUNNISON RIVER BASIN 141

Leroux Creek near Cedaredge, Colo.

Location.- Water-stage recorder, lat. 38°55', long. 107°48', in sec. 16, T. 13 S., R. 

93 W., 200 feet upstream from head gate of Overland ditch and 7.2 miles northeast 

of Cedaredge.

Drainage area.- 43.0 square miles.

Records available.- October 1936 to September 1949 (no winter records 1936-46).

Extremes.- Maximum discharge during year, 600 second-feet May 29 (gage height, 3.84 

feet); minimum daily, 5.2 second-feet Feb. 1.

1936-49: Maximum discharge, 1,310 second-feet May 26, 1942, from rating curve extended above 650 second-feet; maximum gage height, 5.10 feet May 10, 1937; minimum 

daily discharge, 3.6 second-feet Mar. 13, 1940, but may have been less during periods 

of no record.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. One small diversion and several small reservoirs above station for 

irrigation.

Rating tables, water year 1948-49, except periods of ice effect

(gage height^ in feet, and diseharge, in second-feet)

(Shifting-control method used Sept. 12-30)

Oct. 1 to Feb. 28 Mar. 1 to Sept. 30

0.9 6.0 0.9 5.5 1.6 32 2.8 237 

1.1 10 1.1 9.5 1.7 41 3.1 310 

1.2 13 1.2 12 1.8 52 3.2 340 

1.4 20 1.9 65 

1.5 25 2.3 134

Discharge, in second-feet, Water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.7 

8.0 

8.7 

8.4 

15

12 

9.8 

10 

10 

9.8

 9.3 

8.4 

8.2 

8.0 

8.0

8.4 

8.0 

8.0 

8.2 

7.8

6.8 

6.6 

6.6 

6.2

6.2

6.0 

6.0 

6.8 

7.4 

8.2 

7.0

Nov.

7.2 

7.2 

7.2 

6.4 

6.4

6.4 

6.5 

»6.& 

G-. 8 

7.2

7.6 

7.2 

7.0 

6.6 

6.6

6.4

6.2 

6.0 

6.0 

6.4

6.4 

6.2 

6.2 

6.6 

6.6

6.4 

6.2 

- 6.2 

6.4 

6.6

Dec.

6.6 

6.4 

6.4 

6.6 

6.4

»6.2 

6.4 

6.4 

6.2 

6.4

6.6 

6.8 

6.8 

6.8 

6.6

6.4 

7.0 

6.6 

6.2 

6.8

6.8 

7.0 

7.2 

6.8 

6.0

6.2 

6.6 

6.6 

6.2 

6.2 

6.4

Jan.

6.6 

6.6 

6.2 

5.8 

6.2

6.6 

7.2 

7.6 

7.8 

8.0

7.8 

7.6 

7.2 

7.0 

7.0

6.8 

6.6 

6.4 

6.6 

7.0

6.8 

6.6 

6.4 

6.6 

7.0

6.8 

6.6 

6.6 

6.4 

5.8 

5.4

Feb.

5.2

5.6 

6.4 

6.8 

7.0

6.8 

7.4 

7.6 

7.4 

7.0

8.4 

8.0 

7.6 

7.4 

7.2

7.6 

7.8 

8.2 

8.0 

7.8

7.4 

7.0 

7.2 

7.4 

7.4

7.2 

7.2 

7.4

Month

Ooto 

Move

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

raber. ...................................

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 600 sec. -ft.).- May

Mar.

7.6 

7.2 

7.4 

8.0 

8.6

8.4 

8.6 

8.6 

»8.8, 

9.0

9.4 

3.6 

9.4 

9.6

10

10 

11 

11 

11 

11

11 

11 

11 

11 

11

12 

14

12 

11 

10 

9.6

Apr.

9.6 

9.4 

9.2 

9.0 

9.4

11 

14 

18 

16 

16

16 

19 

23 

21 

21

30 

36 

»46 

48 

55

61 

90 

121 

157

173

187 

179 

163 

202 

183

Secondfoot-days

256.5 

197.7 

202.6

16,957.6

209.6 

203.4 

307.8 

1,952.6 

7,365 

6,374 

1,735 

976 

463.9

20,244.1

29 (7 p.m.)

May

140 

193 

268 

248 

193

145 

121 

107 

118 

173

226 

230 

215 

285 

343

288 

230 

204 

213 

222

171 

171 

235 

275 

334

337 

331 

328 

364 

355 

302

Maximum

15 

7.6 

7.2

535

8.0 

8.4 

14 

202 

364 

290 

88 

48 

31

364

600 sec. -ft.

June

255 

222 

215 

239 

258

270 

255 

278 

290 

290

280 

280 

282 

262 

242

237 

244 

285 

262

213

181 

159 

155 

140 

116

112 

107 

95 

79 

71

July

65 

60 

58 

56 

53

67 

88 

76 

64 

64

65 

61 

60 

61 

55

53 

52 

52 

51 

55

53 

52 

52 

52 

55

50 

48 

41 

38 

39 

39

Aug.

37 

43 

44 

43 

42

43 

48 

40 

39 

36

36 

34 

29 

28 

27

29 

29 

28 

26

24

25 

24 

25 

25 

24

24 

25 

24 

24 

27 

24

Sept.

22 

21 

19 

19 

17

16 

18 

20 

19 

18

19

31 

26 

22 

16

14 

14 

12 

12 

12

13 

12 

9.8 

8.3 

7.9

8.5 

8.1 

8.3 

10 

11

Mini Hean *£%£

6.0 8.27 509 

6.0 6.59 392 

6.0 6.54 402

4.8 46.3 33,630

5.4 6.76 416 

5.2 7.26 403 

7.2 9.93 611 

9.0 65.1 3,870 

107 238 14,610 

71 212 12,640 

38 56.0 3,440 

24 31.5 1,940 

7.9 15.5 920

5.2 55.5 40,150

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 5 to Dec. 2. No gage-height record Dec. 3 to 

Apr. 17 (stage-discharge relation affected by ice during part of period); discharge computed on basis 

of 2 discharge measurements, weather records, and records' for stations on nearby streams.
142 GUNNISON RIVER BASIN

Currant Creek near Cedaredge, Colo.

Location.- Water-stage recorder, lat. 38°51', long. 107°53', in sec. 10, T. 14 S., R. 

94 w., 4 miles southeast of Cedaredge and 6 miles upstream from mouth.

Drainage area.- 36 square miles.

Records available.- May 1948 to September 1949.

Extremes.- Maximum discharge during year, 162 second-feet Apr. 24 (gage height, 3.58 

feet); minimum daily, 2.0 second-feet Aug. 5.

1948-49: Maximum discharge, that of Apr. 24, 1949; minimum daily, 1.8 second-feet 

Aug. 28, 1948.

Remarks.- Records fair. Many diversions above station for irrigation. 

Cooperation.- One discharge measurement furnished by Bureau of Reclamation.

Rating table, water year 1948-49, except periods of ice effect

(gage-height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 1 to Dec. 4, Jan. 12-15,

Feb. 4-9, Mar. 1-19, May 4-18, July 7-28)

1.6 2.2 2.0 11 2.7 54 

1.7 3.5 2.2 19 2.9 75 

1.8 5.5 2.3 24 3.0 87 

1.9 8.0 2.5 37

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.7 

3.0 

3.5 

4.1

5.1

6.0 

6.8 

5.8 

3.7 

3.4

3.4 

3.9 

3.2 

3.0 

3.2

3.5 

3.7 

4.1 

4.5

3.4

3.2 

3.2 

3.2 

3.4

3.5 

3.1 

4.1 

3.7 

3.4 

3.4

Nov.

3.5 

3.9 

4.5 

4.5 

4.9

4.5 

5.1 

*4.3 

3.7 

3.7

4.1 

3.9 

3.9 

3.9 

*3.9

4.7 

3.7 

b3.5 

4.1

4.3 

b4.3 

4.3 

4.7 

4.7

4.7 

4.7 

b5.0 

b4.7 

b5.0

Dec.

5.1 

4.9 

4.9 

4.3 

b4.1

*4.3 

5.1 

4.3 

5.1 

4.5

4.1 

4.1 

4.1 

4.3 

4.5

4.3 

4.1 

3.9 

4.1

4.1 

4.3 

5.8 

3.9 

4.1

4.3

4.3 

4.3 

3.9 

b3.8 

b4.2

Jan.

4.3 

4.5 

b4.3 

b4.0 

b3.8

b4.0 

b5.0 

b-5.2 

b7.2 

b7.8

b5.5 

 5.1 

4.9 

4.7 

4.5

b4.0 

b4.3 

b4.0 

b4.4

4.3 

3.7 

3.7 

3.5 

3.5

3.5 

3.7 

3.5 

b3.3 

b3.8 

b3.5

Feb.

b4.5 

b4.1 

b4.5 

4.1 

3.9

b3.5 

4.3

 3.5 

4.5 

4.1

4.3 

4.1 

3.7 

b3.6 

b3.9

b4.6 

b4.8 

b4.7 

b4.7

4.9 

4.7 

4.9 

4.7 

4.7

4.5 

4.9 

4.9

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year

ter year 1948-49 .......................

Mar.

4.3 

4.5 

5.1 

5.3 

6.0

5.5 

6.0 

5.5 

5.3 

*5.3

5.3 

5.1 

4.9 

4.7 

4.7

4.7 

4.7 

4.7 

4.7 

4.7

4.7 

4.5 

4.9

4.7 

4.5

4.3 

3.9 

4.9 

4.9 

5.1 

4.9

Apr.

4.7 

5.3 

5.5 

4.5 

5.3

5.3 

8.3 

16 

14 

9.5

7.0 

7.8 

14 

12 

8.9

13 

22 

29 

26 

28

31 

49 

65 

91 

85

75 

62 

41 

51

37

Secondfoot -days

118.6 

128.8 

135.2

-

136.6 

121.9 

152.3 

833.1 

688.8 

267.6 

157.9 

181.8 

97.4

3,020.0

May

22 

29 

42 

39

20

9.2 

6.2 

4.9 

5.5 

17

33 

23 

22 

24 

36

32 

26 

25 

24 

24

1'6 

15 

20 

22 

25

26 

22 

21 

20 

22 

16

Maximum

6.8 

5.1 

5.8

-

7.8 

4.9 

6.0 

91 

42 

16 

7.2 

9.2 

7.5

91

June

15 

12 

8.9 

8.9 

6.0

6.0 

6.8 

7.8 

8.0 

9.2

8.6 

7.0 

8.3 

6.5 

6.5

6.5 

8.0 

15 

19

13

11 

9.8 

7.0 

8.3 

7.8

9.5 

9.5 

8.6 7.0' 

5.1

July

3.0 

2.8 

2.8 

3.5 

4. -3

4.1 

5.3 

5.1 

6.5 

5.8

7.2 

7.0 

6.2 

5.5 

4.3

4.9

4.7 

5.1 

5. -5 

5.5

5.3

6.0 

5.5 

5.3 

5.8

6.0 

6.8 

6.0 

4.1 

4.3 

3.7

Aug.

3 

3 

2 

2 

2

2 

3 

5 

6 

7

6 

6 

7 

6 

6

5 

5 

5 

5 

5

6 

6

7 

8 

8

9 

8 

7 

7 

7 

7

Minimum Mean

3.0 3.83 

3.5 4.29 

3.8 4.36

-

3.3 4.41 

3.5 4.35 

3.9 4.91 

4.5 27.8 

4.9 22.2 

5.1 8.92 

2.8 5.09 

2.0 5.86 

2.3 3.25

2.0 8.27

2 

0 

8 

3

0

1 

2 

1 

5 

0

8 

8 

.0 

5 

0

5 

5 

8 

5 

8

2 

 S 

0 

3 

9

2 

3 

5 

0 

0 

2

Sept.

7.5 

5.1 

3.1 

3.5 

3.0

3.0 

2.6 

2.8 

2.3 

3.0

2.3 

2.5 

2.6 

2.8 

2.8

2.5 

2.8 

3.4 

3.2 

3.4

3.7 

3.7 

3.7 

3.7 

2.8

2.8 

3.0 

3.0 

3.4 

3.4

Runoff in 

acre-feet

235 

255

268

-

271 

242 

302 

1,650 

1,370 

531 

313 

361 

193

5,990

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
GUNNISON RIVER BASIN 143

Surface Creek near Cedaredge, Colo.

Location.- Water-stage recorder, lat. 38°59', long. 107°51', in NW^NW^ sec. 25, T. 12 S., 

K. 94 W. , 1 mile downstream from Caesar Creek and 8| miles northeast of Cedaredge.

Drainage area.- 28.5 square miles.

Records available.- June 1939 to September 1949 (no winter records 1939-46).

Extremes.- Maximum discharge during year, 230 second-feet May 3 (gage height, 2.50 feet); 

minimum daily, 4.8 second-feet Jan. 31.

1939-49: Maximum discharge, 578 second-feet May 12, 1941 (gage height, 3.62 feet), 

from rating curve extended above 300 second-feet; minimum observed, 2.5 second-feet 

Feb. 19, 1947 (discharge measurement), but may have been less during period of no gageheight record.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Flow regulated by many small reservoirs.

Discharge, in second-feet, water year October 1943 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

25 

16 

14 

18 

24

18 

11 

11 

9.9 

9.3

*9.0 

9.« 

8.7 

9.6 

9.6

9.6 

9.3 

9.3 

9.3 

15

21 

21 

21 

18 

15

18 

17 

18 

21 

19 

16

Nov.

7.0 

7.0 

6.2 

5.8 

b5.8

b5.8 

b6. 4 

*b7.0 

b7.4 

b7.8

1,7.6. 

b7.4 

b7.0 

b6.2 

b6. 2

b6.2 

b6.2 

b5.8 

b5.8 

b6.2

b6. 2 

b5.8

6.0 

6.2 

6.4

6.2 

6.0 

5.8 

6.0 

6.2

Dec.

6.4 

6.2 

6.4 

7.4 

6.8

*7.0 

7.2 

7.0 

6.8 

6.8

6.6

6.4 

6.4 

6.4

6.0

5.8 

6.2 

6.0 

5.8 

6.2

6.4 

6.2 

6.0 

5.6 

5.4

5.6 

5.8 

5.8 

5.8 

5.6 

6.2

Jan.

6.0 

5.8 

5.6 

5.4

5.6

5.8 

6.0 

6.2 

6.4 

6.4

6.2 

6.0 

5.3 

5.6 

5.6

5.6 

5.6 

5.6 

5.8 

5.8

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.4 

5.2 

5.2 

5.0 

4.8

Feb.

4.9 

5.2 

5.8 

5.8 

5.8

6.2 

6.6 

6.8 

6.4 

6.8

7.Z 

7.0 

6.8 

6.6 

6.6

6.6 

7.0 

7.0 

6.8 

6.6

6.4 

6.4

6.6 

6.6 

6.4

6.4 

6.2 

6.4

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

Ua v

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

6.4 

6.2 

6.2 

6.2

6.6

6.8 

6.6 

6.8 

7.0 

7.2

»7.5 

7.5 

7.8 

7.8 

8.1

8.4 

8.7 

8.7 

9.0 

9.0

8.7 

9.0 

8.4 

9.6 

9.9

11 

12 

9.9 

9.0 

9.P 

8.4

Apr.

8.1 

8.1 

7.5 

7.2 

7.0

7.8 

9.9 

14 

11 

11

11 

14 

17 

15 

15

17 

22 

29 

33 

38

40 

60 

84 

108 

120

125

112 

115 

125 

115

Secondfoot-days

459.6 

191.6 

194.2

16,207.4

176.0 

179.9 

253.4 

1,306.6 

3,772 

3,544 

3,041 

1,985 

1,070

16,173.3

May

106 

142 

165 

140 

112

83 

68 

63 

89 

118

122 

127 

124 

148 

165

148 

131 

125 

124 

117

98 

101 

118 

134 

144

134 

129 

125 

127 

125 

120

Maximum

25 

7.8 

7.2

218

6.4 

7.2 

12 

125 

165 

160 

129 

86 

54

165

June115 

110 

106 

118 

117

118 

117 

117 

120 

144

152 

148 

142 

133 

129

129 

142 

160 

154 

136

124 

118 

115 

106 

93

86 

80 

72 

61 

82

July

80 

106 

113 

96 

93

122 

129 

129 

122 

118

118 

89 

91 

94 

91

88 

83 

76 

82 

103

105 

105 

105 

115 

115

94 

82 

72 

72 

77 

76

Minimum

8.7 

5.8 

5.4

5.2

4.8 

4.9 

6.2 

7.0 

63 

61 

72 

45 

21

t 4<8

Aug.

76 

80 

80 

71 

68

56 

54 

54 

54 

48

45

60 

65 

78 

77

58 

56 

54 

58 

82

83 

77 

78 

86 

83

58 

50 

50 

49 

49 

48

Mean

14.8 

6.39 

6.26

44.3

5.68 

6.42 

8.17 

43.6 

122 

118 

98.1 

64.0 

35.7

44.3

Sept.

48 

50 

49 

52 

52

54 

53

39 

38 

28

32 

32 

32 

29 

28

26 

25 

22 

21 

36

34 

41 

40 

32 

30

28 

28 

32 

35 

24

Runoff In 

ao re-feet

912 

380 

385

32,130

349 

357 

503 

2,590 

7,480 

7,030 

6,030 

3,940 

2,120

32,080

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 23 to Mar. 10 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 1 discharge measurement at station, 2 discharge 

measurements made 3 miles downstream, weather records, and records for nearby streams.
144 GUNNISON RIVER BASIN

Surface Creek at Ceaaredge, Colo.

Location.- Water-stage recorder and concrete control, lat. 38°52', long. 107°55', in sec. 

20, T. 13 S., R. 94 W., at Cedaredge, 500 feet east of State Highway 65.

Drainage area.- 43 square miles.

Records available.- May 1917 to September 1927 and October 1933 to September 1949 in reports ol' Geological Survey. May 1917 to September 1949 in reports of State Engineer.

Average discharge.- 32 years, 29.7 second-feet.

Extremes. - Maximum discharge during year, 212' second-fee*- May 2 (gage height, 1.26 feet); 

minimum daily not determined, occurred during period of no gage-height record.

1917-49: Maximum discharge, 1,190 second-feet May 13, 1941 (gage height, 2.50 feet), 

from rating curve extended above 640 second-feet; no flow Sept. 25, 1939 and practically no flow at times during most winters.

Remarks.- Records good above 30 second-feet and fair below. Natural flow of stream affected 

by diversions to and from nearby streams, storage reservoirs, and diversions for 

irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

4.6 

2.5 

7.5 

18

13 

6.8 

6.4 

5.1 

5.5

5.5 

5.1 

4.6 

5.5 

5.9

7.5 

6.4 

6.4 

a6.4 

a6.4

7.5 

5.9 

4.6 

5.9 

5.5

5.1 

3.4 

4.6 

4.6 

4.2 

2.2

Nov.

2.2

1.8 

4.6 

3.4 

3.4

3.4 

3.8 

3.4 

3.4 

3.8

3.4 

a3.1 

a2.8 

a2.5 

*2.2

2.0 

a2.0 

a2.0 

al.9 

a2.0

aE.l

a£.2 

a2.2 

a2.2 

a2. 2

a£.2 

a2.2 

a2.1 

a2.3 

a2.7

Dec.

(*) 

. a2.2

Jan.

(») 

, a2.5

Feb.

(*) 

 al.5

Month

Ooto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 ...............

Mar.

(*)

. a2.0

(»)

Apr.

1.8 

al.5 

1.2 

al.5 

al.9

2.5 

3.8 

5.9 

4.6 

4.2

3.8 

5.1 

10 

9.5 

8.1

9.5

17 

32 

38 

45

52 

85 

111 

154 

144

150 

118 

99 

106 

91

Secondfoot-days

192.6 

79.5 

68.2

9,246.4

77.5 

42.0 

62.0 

1,316.9 

2,608 

1,901 

1,040 

489.6 

211.2

8,088.5

May

67 

102 

150 

118 

79

51 

46 

50 

68 

99

89 

77 

87 

97 

126

100 

91 

84 

88 

80

63

73 

84 

82 

88

75 

71 

84 

82 

86 

71

Maximum

18 

4.6

198

154 

150 

102 

50 

32 

12

154

June

61 

56 

50 

59

63

68

70 

68 

66 

95

100 

73 

66 

61 

54

58 

71 

102 

91 

56

50 

52 

54 

48 

52

58 

53 

52 

46 

48

July

44 

50 

48 

41 

41

41 

40 

44 

42

34

34 

20 

26 

27 

25

26 

24 

19 

24

34

32 

37 

41 

46 

46

32 

28 

20 

22 

26 

26

Minimum

2.2 

1.8

-

1.2 

46 

46 

19 

4.5 

2.1

-

Aug.

27 

18 

12 

13 

13

5.6 

4.5 

7.2 

7.2 

6.7

6.2 

7.2 

11 

25 

32

27 

25 

25

23 

20

17 

20 

22 

20 

16

13 

12 

15 

16 

13 

10

Mean

6.21 

2.65 

2.2

25.3

2.5 

1.5 

2.0 

43.9 

84.1 

63.4 

33.5 

15.8 

7.04

22.2

Sept.

9.4 

7.f

7. 'a 

6.7

7.2 

7.2 

11 

12 

7.2

7.8 

8.4 

8.4 

9.4 

11

12 

12

3.6 

2.7 

4.2

5.0 

4.2 

3.6 

2.7 

2.1

3.6 

4.5 

6.7 

8.4 

8.4

Runoff In 

acre-feet

382 

158 

135

18,340

154 

83 

123 

2,610 

5,170 

3,770 

2,060 

971 

419

16,040

* Winter discharge measurement made on this day.

a No gage-height record (stage-discharge relation affected by Ice during most of periods); discharge 

computed on basis of 5 discharge measurements, weather records, and records for nearby stations.
GUNNISON RIVER BASIN 

Surface Creek at Eckert, Colo.

145

Location.- Water-stage recorder, lat. 38°50', long. 107°58', in £E£ sec. 14, T. 14 S., R. 

95 W. , a quarter of a mile west of State Highway 65, 0.5 mile southwest of Eckert, and 

2£ miles upstream from mouth.

Drainage area.- 55 square miles.

Records available.- April 1942 to September 1949.

Extremes. - Maximum discharge during year, 129 second-feet i«iay 2 (gage height, 3.39 feet); 

minimum daily, 0.3 second-foot Feb. 12-20.

1942-49: Maximum discharge observed, 466 second-feet May 15, 1944 (gage height, 

4.06 feet, site and datum then in use), fro-n rating curve extended above 150 secondfeet; no flow Apr. 14, 15, 1946.

Remarks.- Records fair. Natural flow of stream affected by diversions to and from nearby 

streams, storage reservoirs, and diversions for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

0.9 

.7 

.7 

.8 

2.3

1.8 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

1.1 

.9 

.9 

.9

1.0

1.0 

.9 

1.1 

1.0

1.5 

1.1

Nov.

1.2

1.1 

1.2 

1.3 

1.6

2.8 

3.5 

2.2 

1.6 

1.8

2.1

1.7 

1.4 

1.4 

1.2

1.1 

1.1 

1.0 

1.0 

1.0

1.0 

1.1 

1.1 

1.1 

1.1

1.1

1.1 

1.0

1.1

1.0

Dec.

1.1 

1.0 

1.0 

1.0 

1.0

1.0

1.0

1.1

1.0 

1.0

1.0 

1.0 

1.0

1.1 1.1

1.0 

1.0 

1.0 

.9 

.9

.9 

.9

1.0 

.9 

.8

.8 

.8 

.8 

.8 

.7 

.7

Jan.

0.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.6

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.6 

.5

Feb.

0.5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.4 

.4 

.4 

.4

.4 

.4 

.5

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194*

ter year 1948-49 .......................

Mar,

0.5 

.5 

.4 

.4 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.5

.5 

.5 

.5 

.5 

.5 

.5

Apr.

0.5 

.5 

.5 

.4 

.4

1.0 

.6 

1.7 

1.1 

.9

.5 

.5

.6 

.5 

.5

.5

2.2 

14 

13 

9.2

30 

56 

78 

70

50

44 

17 

17 

16

Secondfoot-days

29.4 

42.0 

29.3

2,276.4

19.2 

10.5 

14.5 

435.1 

334.9 

121.3 

75.3 

59.1 

58.6

1,229.2

May

2.8 

32 

59 

2O 

.6

.7 

.6 

.6 

1.8 

22

20

10 

18 

19 

30

12 

4.5

3.5 

4.0

6.0

3.3 

6.0 

5.0 

7.4

5.0 

5.8 

11 

9.2

7.2

6.0

Maximum

2.3

3.5

1.1

144

.7 

.5 

.5

78 

59

9.6 

6.0 

4.0 

3.3

76

 Tune

6.6 

5.8 

4.0 

4.5 

4.7

5.8 

5.2 

6.0 

6.0 

9.2

9.6 

1.8 

1.7 

1.6 

' 1.6

1.5 

1.5 

7.7 

6.0 

1.3

2.5

4.7 

4.2 

2.2

2.8

4.2 

2.8 

2.1 

2.5

July

2.1 

4.2 

3.0 

2.8 

3.8

4.7 

4.7 

4.2 

3.0 

2.2

4.0 

1.2 

.9 

1.2 

1.4

1.5

1.4 

2.2 

3.3 

3.3

.9

.7 

2.2 

6.0

2.3

1.2 

1.2 

1.9 

1.6

1.2

Minimum

0.7 

1.0 

.7

.5

.5 

.3 

.4 

.4 

.6 

1.2 

.7 

1.1 

1.1

.3

Aug.

1.4 

1.9 

1.6 

1.6 

1.4

1.3 

1.3 

1.3 

1 .4 

1.2

1.1 

1.1 

1.1 

2.1 

3.8

4.0 

2.6 

3.5 

3.0 

3.3

1.9 

1.5 

1.7 

1.6

1.5

1.4 

1.3 

1.2

1.9 

3.3

Mean

0.95 

1.40 

.95

6.22

.62 

.38 

.47 

14.5 

10.8 

4.04 

2.43 

1.91 

1.95

3.37

Sept.

2.2 

2.8 

2.3 

2.1 

2.5

3.0 

2.2 

1.9 

2.2 

2.2

2.5

2.2 

3.0 

3.3 

2.6

2.5 

2.2

2.1 

1.7 

1.7

1.4 

1.2 

1.1

1.1

1.1

1.1

1.1 

1.1 

1.1

Runoff In 

acre-feet

58 

83 

58

4,520

38 

21 

29 

863 

664 

241 

149 

117 

116

2,440
146 GUNNISON RIVER BASIN

Ward Creek below Kiser Creek, near Cedaredge, Colo.

Location. - Water-stage recorder, lat. 38°53', long. 107°58', in bE£ se-. 26, T. 13 S., 

R~!9b W., 1 mile downstream from Kiser Creek and 3 miles southwest of Cedaredge.

Drainage area.- 57.8 square miles.

Records available.- September 1944 to September 1949.

Extremes.- Maximum discharge during year, 58 second-feet May 25 (gage height, 2.64 feet); 

minimum daily, 3.2 second-feet Aug. 30, 31.

1944-49: Maximum discharge, 168 second-feet Apr. 21, 1948 (gage height, 3.68 feet) 

from rating curve extended above 65 second-feet; no flow July 14-17, 1946.

Remarks.- Records good except those for periods of ice effect, which are fair. Natural 

flow of stream affected by diversions to and from nearby streams, storage reservoirs, 

and diversions for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

5.9 

5.4 

5.4 

5.2 

6.7

5.9 

5.9 

5.9 

5.9 

5.9

6.9 

6.9 

6.9 

6.9 

7.2

7.2 

7.2 

7.2 

7.2 

7.2

7.2 

7.2 

6.9 

6.9 

6.4

6.4 

6.4 

8.0 

7.7 

7.2 

7.2

Nov.

7.2 

6.7 

6.7 

7.2 

6.9

6.7 

6.7 

6.4 

6.2 

6.2

6.7 

6.7

6.7 

6.7 

6.7

6.7 

6.7 

6.2 

5.9 

6.4

6.2 

6.2 

7.2 

7.4 

7.4

7.4 

6.9 

8.2 

8.7

8.5

Dec.

8.5 

8.2 

8.0 

8.0 

8.2

 8.0 

8.2 

7.4 

7.7 

7.2

7.4 

7.4 

7.4 

7.4

7.2

6.9 

7.2 

6.7 

6.7 

6.9

6.9 

6.9 

8.5 

6.9 

b7.0

7.4 

8.0 

8.0 

7.4 

b6.9 

b7.2

Jan.

7.7 

7.7 

b7.4 

b7.0 

b7.0

b7.2 

b7.4

b7.6 

b7.8 

8.0

8.0 

*8.0 

8.5 

8.2 

7.7

7.7 

7.4 

7.7 

8.2 

8.0

7.7 

7.7 

7.7 

7.7 

7.7

7.7 

7.7 

7.4 

7.7 

b7.4 

b7.4

Feb.

6.7 

b6.9 

7.2 

6.9 

6.9

6.7 

6.9 

*6.9 

6.9 

6.7

6.4 

6.4 

6.2 

6.2 

6.4

6.4 

6.4 

6.4 

6.7

6.7

7.4 

8.5 

9.0 

8.2 

8.2

8.2 

8.2 

8.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948 

gtry

ter year 19*8-49 .......................

Mar.

8.0 

8.0 

8.0 

7.7 

7.7

7.7 

7.7 

7.4 

7.2 

7.2

7.2 

6.9 

6.9 

6.9 

7.2

7.2 

7.2 

6.9 

7.2 

7.7

6.9 

6.9 

6.9 

6.9

6.7

6.4 

6.4 

7.2 

7.2 

7.4 

7.2

Apr.

7.2 

7.4 

7.4 

7.2 

8.7

11 

12 

18 

15 

11

11 

15 

16 

13 

12

14 

18 

18 

18 

16

17 

18 

22 

31 

30

33 

30 

22 

22

16

Secondfoot -days

206.4 

206.4 

231.7

5,145.4

238.0 

199.1 

224.0 

469.9 

380.1 

260.8 

220.2 

155.1 

167.3

2,986.0

May

12 

12

17 

16 

9.3

6.2 

5.2 

5.4 

5.0

6.2

9.9 

8.5 

15 

12 

20

15 

9.9 

9.9 

9.6 

10

8.7 

7.7 

9.9 

12

16

37 

24 

18 

13 

11 

8.7

Maximum

8.0 

8.7 

8.5

125

8.5 

9.0 

8.0 

33 

37 

14 

8.2 

6.7 

7.7

37

June

6.9 

6.7 

6.7 

6.9 

6.4

5.9

6.2 

5.7 

7.4 

7.4

7.7 

7.7 

7.7 

6.9 

6.7

6.7 

6.7 

11 

13 

14

11 

11 

13 

14

13

11 

9.9 

9.0 

7.7 

6.9

July

5.9

5.7 

6.7 

6.7 

6.4

7.E 

6.7 

6.4 

6.7 

7.4

6.7 

6.9 

7.2 

6.7

6.2

6.7 

6.4 

6.2 

6.7 

8.0

8.0 

8.2 

8.2 

8.0 

8.2

8.2 

7.7 

7.4 

7.2 

7.4 

8.2

Minimum

5.2 

5.9

6.7

3.2

7.0 

6.2 

6.4 

7.2 

5.0 

5.7 

5.7 

3.2 

3.3

3.2

Aug.

6.7 

5.9 

5.9 

4.5

3.7

3.7 

4.5 

5.7 

6.4

5.7

5.7 

5.2 

4.7 

4.2 

5.0

5.4 

6.2 

5.9 

5.7 

5.2

5.2 

5.2 

6.2 

5.9 

5.7

4.5 

3.5 

3.3 

3.3 

3.2 

3.2

Mean

6.66 

6.88 

7.47

14.1

7.68 

7.11 

7.23 

16.6 

12.3 

8.69 

7.10 

5.00 

5.58

8.18

Sept.

3.3 

3.8 

3.5 

3.7 

3.7

3.5 

3.3 

3.3 

3.5 

4.0

4.5 

4.7 

5.7 

6.4 

6.9

7.4 

7.7 

7.4 

7.4 

7.2

7.2 

7.2 

6.9 

6.9

6.4

6.4 

r.4 

6.4 

6.4 

6.2

Runoff In 

acre-feet

409 

409 

460

10,200

472

395 

444 

986 

754 

517 

437 

308 

332

5,920

* Winter discharge measurement made on this day. 

b Stage-discharge relation sffected -by Ice.
GUNNISON RIVER BASIN 147

Uncompahgre River at Colona, Colo.

Location.- Water-stage recorder, lat. 38°19'50", long. 107°46 I 40", In NVl£ sec. 17, T. 47 

N. , K." 8 W. , ,1ust downstream from county highway bridge and a quarter of a mile east of 

Colona. Datum of gage is 6,319.80 feet above mean sea level, datum of 1929. Prior to 

Aug. 2, 1949, at datum 2.00 feet higher.

Drainage area.- 437 square miles.

Records available - March 1935 to September 1949. April 1903 to June 1906 and April 1917 

to November 1934 at site 3 miles upstream.

Average discharge.- 33 years (1904-5, 1917-49), 292 second-feet.

Extremes.- Maximum discharge during year, 2,860 second-feet June 19 (gage height, 5.65 

feet,present datum); minimum daily, 68 second-feet Dec. 25, Jan. 4, 30.

1903-6, 1917-49: Maximum daily discharge, 4,080 second-feet June 13, 14, 1921; minimum daily, 16 second-feet Sept. 3, 1918.

Remarks.- Records good. Diversions above station for irrigation.

Cooperation.- Gage-heights and most discharge measurements furnished by Uncompahgre Valley 

Water Users Association.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

71 

72 

72 

74 

79

81 

81 

81 

83 

85

87 

87 

85 

85 

85

90 

94

102 

105 

108

105 

105

102 

105 

108

102 

100 

111 

114 

111 

111

Nov.

108 

108 

108 

119

102

92 

105

108 

97 

100

116 

111 

116 

119 

114

111 

111 

102 

87 

105

102

105 

105 

105 

105

102 

100 

85 

102 

111

Dec.

102 

100 

108 

108 

87

94 

90 

97 

90 

97

92 

92 

90 

92 

92

79 

92 

85 

74 

87

87 

87 

94 

83 

68

87 

87 

83 

81 

76 

94

Jan.

90 

87 

76 

68 

72

83 

94

108 

100 

119

114 

111 

94 

85 

87

81 

76 

72 

72 

83

90 

81 

76 

79 

81

81 

81 

79

71 

68 

76

Feb.

71 

90 

83 

87 

97

90 

105 

108 

102 

85

162 

122 

92 

83 

81

100 

111 

119 

116

81 

79 

87 

85

90

85

81 

83

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

90 

83 

87 

92

100

97

105 

102 

102 

102

105 

111 

111 

108 

125

162 

176 

176 

193 

211

183 

169 

143 

128 

122

122 

111 

125 

131 

119 

119

Apr.

128 

125 

128 

159 

190

215

264 

237

204

193 

241 

276 

260 

245

284 

336 

381 

358

430

415 

525 

684

766 

756

816 

756 

712 

800 

734

Secondfoot-days

2,881 

3,161 

2,775

109,641

2,635 

2,658 

3,910 

11,863 

18,228 

38,378 

22,800 

4,627 

2,441

116,357

Peak discharge (base, 1,250 sec. - ft. J. - June 19 (3 a.m

sec. -ft.: July 5 (3 a.m.) 1,480 sec. -ft.

May

560 

615 

766 

766

620

565 

455 

405

368 

450

500 

610 

575 

555 

722

717 

595 

570 

535 

570

460 

430 

480

570 

615

717 

684 

728 

673

712 

640

Maximum

114 

119 ioar

1,840

119 

162' 

211 

816 

766 

2,600 

1,330 

284 

94

2,600

) 2,860 sec

June

575 

485

440 

470 

490

565 

590 

565

600 

662

926

1,070 

1,300 

1,340 

1,360

1,440

2,200 

2,600 

2,440 

1,940

1,880 

1,760 

1,730 

1,980 

1,580

1,710 

1,530 

1,420 

1,400 

1,330

July

1,330 

1,320 

1,260 

1,240 

1,240

1,050 

1,020 

922 

922 

978

894 

838 

768 

726

670

628 

600 

586 

572 

558

52S 

467 

436 

430 

509

523 

424 

390

360 

320 

296

Minimum

71 

85 

68

52

68 

71 

83 

125 

368 

440 

296 

88 

76

68

Aug.

284 

268 

207 

195 

185

180 

185 

182 

188 

190

180 

172 

170 

165 

160

150 

145 

135 

125 

116

101 

88 

94 

98 

96

100 

98 

96 

94 

92 

88

Mean

92.9

105 

89.5

300

85.0 

94.4 

126 

395 

588 

1,279 

735 

149 

81.4

319

.-ft.; June 24 (3 a.m

Sept.

88 

94 

88 

82 

81

81 

80 

79 

78 

79

81 

83 

82 

84 

83

83 

82 

84 

83 

81

80 

81 

80 

80 

77

78 

77 

76 

78 

78

Runoff In 

acpe-feet

5,710 

6,270 

5,500

217,500

5,230 

5,270 

7,760 

23,530 

36,150 

76,120 

45,220 

9,180 

4,840

230,800

) 2,440
148 GUNNISON RIVER BASIN

Uncompahgre River at Delta, Cold.

Location.- Water-stage recorder, lat. 38°4S', long. 108°05', in SW£ sec. 13, T. 15 S., R. 

96 W., 100 feet upstream from bridge on State Highway 92, at west edge of Delta, and 

lij- miles upstream from mouth. Datum of gage is 4,929.92 feet above mean sea level, 

datum of 1929.

Drainage area.- 1,110 square miles.

Records available.- April 1924 to September 1931 (no winter records), September 1938 to 

September 1949. April 1903 to October 1923 ,at site 3j miles upstream.

Average discharge.- 11 years (1938-49), 326 second-feet.

Extremes.- Maximum discharge during year, 2,840 second-feet June 19 (gage height, 6.00 

feet); minimum daily, 80 second-feet Jan. 4.

1903-31, 1938-49i Maximum discharge recorded, 3,730 second-feet May 5, 1941 (gage 

height, 5.90 feet, at same datum, site then in use), from rating curve extended above 

1,900 second-feet; minimum daily, 7 second-feet July 10-15, 17, 21, 24-28, 1910.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Natural flow of stream affected by transbasin diversions, diversions 

for irrigation, and return flow from irrigated areas.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

520 

455 

425 

410 

415

430 

480 

435 

420 

400

400 

396 

400 

396 

346

324 

328 

328 

328 

314

332 

332 

332 

310 

306

306 

328 

355 

332 

346 

346

Nov.

350 

360 

364 

382 

378

396 

410 

435 

440 

475

480 

470 

440 

445 

430

420 

332 

238 

216 

216

220 

198 

206 

206 

198

188 

172 

136 

149 

165

Dec.

198 

172 

155 

162 

139

145 

133 

142

130 

142

136 

152 

145 

152 

155

136 

139 

145 

127 

127

142 

139 

168 

155 

106

101 

118 

124

*121 

106 

92

Jan.

121 

118 

82 

b80 

b82

b94 

b90 

130 

149 

175

180 

165 

*158 

168 

136

118 

109 

130 

106 

136

127 

133 

121 

*112 

121

121 

121 

bl!5 

bllO 

b!20 

b!30

Feb.

b!25 

b!40 

158 

*152

149

133 

188 

168 

136 

155

alSO 

a!90 

a!60 

a!45 

a!45

alSO 

a!55 

a!60 

a!75 

a200

a210 

a!90 

202 

220 

202

162 

155

165

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194

ter year 1948-49 .......................

Mar.

158 

155 

152 

158 

155

165 

158 

172 

152 

152

136 

130 

115 

112 

112

121 

149 

168 

165 

180

260 

265 

314 

256 

229

220 

184 

206 

184 

229 

211

Apr.

206 

247 

256 

278 

314

310 

382 

440 

440 

396

360 

360 

364 

332 

274

252 

364 

495 

405 

382

520 

575 

680 

765

780

785 

680 

520 

635 

715

Secondfoot -days

11,555 

9,515 

4,304

127,907

3,858 

4,670 

5,523 

13,512 

14,897 

27,979 

14,834 

5,440 

6,620

122,707

May

515 

430 

590 

730 

590

460 

378 

301 

216 

184

288 

450 

565 

435 

585

630 

660 

565 

525 

520

475 

355 

324 

346 

425

525 

540 

605 

595 

565 

525

Maximum

520 

480 

198

1,600

180 

220 

314 

785 

730 

2,460 

986 

292 

470

2,460

June

515 

386 

274 

260 

324

373 

445 

500 

565 

580

780 

848 

1,060 

830 

842

806 

1,110 

1,740 

2,460 

1,740

1,550 

1,280 

1,360 

1,940 

1,200

1,080 

1,060 

866

670 

535

July

530 

555 

986 

980

926

962 

986 

755 

690 

795

785 

675 

515 

410 

364

346 

310 

292 

314 

310

270 

229 

202 

206 

229

296 

224 

184 

175 

168 

165

Minimum

306 

136 

92

70

80 

125 

112 

206 

184 

260 

165 

133 

145

80

Aug.

155 

136 

136 

145 

145

136 

133 

139 

292 

283

247 

229 

234 

224 

234

229 

158 

152 

145 

149

145 

149 

145 

188 

175

168 

168 

162 

155 

142 

142

Mean

373 

317 

139

349

124 

167 

178 

450 

481 

933 

479 

175 

221

336

Sept.

152 

165 

158 

152 

149

145 

145 

162 

162 

198

247 

270 

337 

460 

470

319 

168 

152 

180 

188

198 

242 

229 

238 

224

216 

198 

198 

238 

260

Runoff in 

acre-feet

22,920 

18,870 

8,540

253,700

7,650 

9,260 

10,950 

26,800 

29,550 

55,500 

29,420 

10,790 

13,130

243,400

Peak discharge (base, 90O sec. -ft.).- Apr. 24 (9 a.m.) 1,150 sec. -ft.; June 13 (2 p.m.) 1,390

sec.-ft.; June 19 12 p.m.) 2,840 sec.-ft.; June 24 (1:30 p.m.) 2,460 sec.-ft.; July 6 (11 p.m.) 

1,820 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for nearby stations.

b Stage-discharge relation affected by ice.
GUNNISON RIVER BASIN 

Red Mountain Creek near Ironton, Colo.

149

Location.- Water-stage recorder, lat. 37°57'45", long. 107°39'40", in N| sec. 29, T. 43 

H., K. 7 W., 100 feet from U. S. Highway 550, 2 miles northeast of Ironton, and 2 

miles upstream from mouth. Datum of gage is 9,585.58 feet above mean sea level (Bureau 

of Reclamation bench mark).

Drainage area.- 17.8 square miles.

Records available.- August 1947 to September 1949.

Extremes.- Maximum discharge during year, 331 second-feet June 18 (gage height, 4.42 feet); 

. minimum daily, 7.6 second-feet Feb. 1.

1947-49: Maximum discharge, that of June 18, 1949; maximum gage height, 4.55 feet 

May 19, 1948; minimum daily discharge, that of Feb. 1, 1949.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

18 

18 

IS 

19

19 

IS 

18 

18 

18

17 

17 

17 

17 

17

17

16 

17 

17

16 

16 

16 

16 

16

15 

16 

16 

16 

16 

16

Nov.

*17 

16 

18 

15 

17

14 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

b!3 

16 

16

15 

15 

16 

16 

16

16 

bl5 

b!3 

*15 

15

Dec.

15 

14 

14 

15 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

11 

12 

11 

11 

11

11 

11 

11 

11 

9.4

10 

10 

10 

10 

9.8 

10

Jan.

10 

10 

9.6 

9.0 

8.8

9.4 

9.8 

10 

10 

10

10 

10 

10 

9.6 

9.4

9.4 

9.4 

*9.4 

9.4 

10

10 

9.6 

9.2 

9.4 

9.6

9.6 

9.6 

9.2 

9.0 

8.8 

9.4

Feb.

7.6 

9.6 

9.4 

9.6 

10

10 

11 

11 

11 

11

*13 

12 

11 

9.6 

9.6

10 

10 

11 

11 

11

10 

9.4 

9.0 

9.0 

9.0

9.0 

9.0 

9.0

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

9.0 

9.0 

9.0 

9.0 

9.0

9.4 

9.4 

9.4 

9.4 

9.4

9.6 

10 

10 

9.8 

*10

11 

11 

12 

13 

15

*14 

13 

12 

bll 

bll

blO

blO 

12 

12 

bll 

12

Apr.

12 

b!2 

b!2 

12 

12

12 

13 

13 

13 

13

12 

13 

13 

*12 

15

16 

18 

22 

22 

25

25 

30 

43 

58 

59

71 

66 

66 

79 

71

Secondfoot-days

525 

470 

359.2

14,576.9

296.6 

281.8 

331.4 

870 

2,688 

5,110 

2,788 

894 

518

15,132.0

May

60 

74 

95 

91 

74

61 

48 

46 

54 

67

74 

79 

67 

74 

96

89 

76 

72 

71 

71

64 

74 

89 

112 

128

134 

132 

134 

130 

132 

120

Maximum

19 

18 

15

237

10 

13 

15 

79 

134 

300 

153 

43 

21

300

June

102 

82 

79 

84 

86

100 

93 

89 

106 

147

177 

213 

220 

218 

213

237 

290 

300 

268 

242

223 

204 

202 

177 

162

169 

166 

162 

155 

144

July

144 

149 

153 

147 

136

126 

124 

122 

124 

122

104 

96 

89 

87 

79

78 

79 

72 

72 

69

66 

61 

57 

58 

68

60 

54 

53 

48 

47 

44

Minimum

15 

13 

9.4

9.2

8.8 

7.6 

9.0 

12 

46 

79 

44 

19 

15

7.6

Aug.

39 

38 

37 

38 

37

38 

43 

38 

36 

34

31 

30 

29 

28 

27

26 

27 

26 

24 

24

23 

23 

23 

23 

23

23

23 

22 

22 

20 

19

Mean

16.9 

15.7 

11.6

39.8

9.57 

10.1 

10.7 

29.0 

86.7 

170 

89.9 

28.8 

17.3

41.5

Sept.

20 

20 

19 

19 

19

19 

18 

18 

18 

19

21 

19 

19 

18 

18

17 

17 

16 

16 

16

16 

16 

15 

15 

15

15 

15 

15 

15 

15

Runoff in 

acre-feet

1,040 

932 

712

28,910

588 

559 

657 

1,730 

5,330 

10,140. 

5,530 

1,770 

1,030

30,020

Peak discharge (base, 250 sec.-ft,. ).|- June 18 (9 p.m.) 331 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 29 to Mar. 20 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 4 discharge measurements, weather records, and records for stations on nearby streams.
150 GUNNISON RIVER BASIN

East Fork Dallas Creek near Ridgway, Colo.

Location.- Water-stage recorder, lat. 38°06', long. 107°49' , In NE£ sec. 2, T. 44 N., R. 9 

ST.", llj miles upstream from Beaver Creek and 5 miles southwest of Ridgway.

Drainage area.- 14.4 square miles.

Records available.- October 1947 to September 1949.

Extremes. - Maximum discharge during year, 297 second-feet June 18 (gage height, 3.43 f e.et), 

From rating curve extended above 100 second-feet; minimum daily not determined, occurred 

during period of no gage-height record.

1947-49: Maximum discharge, that of June 18, 1949; minimum daily, 4.5 second-feet " 

Jan. 16, 1948.

Remarks.- Records fair except those for June 16 to July 8 and those for periods of ice 

errect or no gage-height record, which are poor. No diversion or regulation above 

station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

18 

16 

14 

14

14

14 

15

16 

16 

16

15

14 

14 

14

14

14 

13 

13 

13 

13

13 

13 

13 

12 

12

12 

12 

12 

9J8 

11 

11

Nov.

11 

11 

10 

11 

8.2

8.2 

9.0 

9.8 

12 

»14

14

13 

14 

14

14

13 

12 

11 

12 

12

12 

12 

12 

12 

12

12 

12 

11 

11

11

Dec.

(«)

11

Jan.

(*) 

' 8.5

Feb.

(«)

7.0

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

> 7.6

(«)

*7.9 

7.9 

8.2

8.4 

9.0 

8.4 

8.4 

8.2 

8.4

Apr.

7.9 

8.2 

8.2 

8.2 

8.4

8.7 

8.4 

8.7 

8.4 

8.2

7.9 

8.4 

8.4 

8.4 

7.3

8.2 

8.2 

8.4 

8.7 

9.0

9.6 

11 

13

13 

14

16 

16 

16 

17 

18

Secondfoot-days

420.8 

350.2 

341

9,788.9

263.5 

196.0 

242.0 

309.8 

658 

3,087 | 

2,289 

1,347 

665

10,169.3

May

17 

17 

19 

19

19

17 

16 

16 

15 

16

17 

17 

17 

17 

18

19 

19 

19 

19 

19

18 

18 

19 

21

24

29 

31 

34 

34 

39 

39

Maximum

18 

14

132

18 

39 

222 

122 

58 

33

222

June

36 

33 

30 

32 

30

31 

34 

34 

35 

37

46 

61 

86 

100 

102

116 

129 

222 

192 

168

168 

194 

190 

17B 

142

139 

142 

129 

129 

122

July

116 

116 

114 

111 

122

92

78 

70 

77 

76

63 

64 

65 

68 

58

45 

55

59 

61 

61

58 

70 

72 

73 

83

70 

61 

57 

59 

59 

56

Minimum

9.8 

»-2

4.5

7.3 

15 

30 

45 

31 

14

-

Aug.

57 

56 

55 

54 

51

53 

56 

54 

58 

55

51

48 

46 

44 

42

41 

41 

39 

37 

36

35 

34 

35 

35 

35

35 

34 

34 

33 

32 

31

Mean

13.6 

11.7 

11

26.7

8.5 

7.0 

7.81 

10.3 

21.2 

103 

73.8 

43.5 

22.2

27.9

Sept.

31 

33 

31 

30 

29

28 

27 

26 

27 

28

31 

28 

27 

25 

23

19 

17 

17 

16 

16

15 

15 

15 

14

14

14 

16 

18 

18 

17

Runoff In 

acre-feet

835 

695 

676

19,410

523 

389 

480 

614 

1,310 

6,120 

4,540 

2,670 

1,320

20,170

Peak dlseharge~ (base, 120 see.-ft.).- June 18 (8 p.n 

July 5 16 a.m.) 160 sec.-ft.

.) 297 aec.-ft.; June 23 (9 p.m.) 240 ssc.-ft.;

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. 9 to Mar. 22 (stage-discharge relation affected by Ice during 

most of period), Sept. 27; discharge computed on basis of 5 dls ' ;e measurements, weather records, 

and records for stations on nearby streams.
GUNNISON RIVER BASIN 151

Roubideau Creek at mouth, near Delta, Colo.

Location.- Water-stage recorder, lat. 38°44', long. 108°09', in sec. 19, T. 15 S., R. 96

 W., a quarter of a mile upstream from mouth and 5 miles west of Delta. Datum of gage 

is 4,864.34 feet above mean sea level, datum of 1929. Prior to Oct. 26, 1948, waterstage recorder at site a quarter of a mile upstream. Datum of gage was 4,869.20 feet 

above mean sea level, datum of 1929.

Drainage area.- 245 square miles.

Records available.- March 1939 to September 1949.

Average discharge.- 10 years, 141 second-feet.

Extremes.- Maximum discharge during year, 1,070 second-feet Aug. 8 (gage height, 4.56 

feet), from rating curve extended above 700 second-feet; minimum daily, 25 second-feet 

Jan. 30.

1939-49: Maximum discharge, 2,950 second-feet Aug. 5, 1945 (gage height, 7.76 feet, 

site and datum then in use), from rating curve extended above 1,300 second-feet; minimum daily, 17 second-feet Mar. 20, 1940.

Remarks.- Records good except those for periods of ice effect or no gage-height record,

 which are fair. Part of discharge is return flow from irrigated lands under lower end 

of Ironstone Canal. A few small diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

119

130 

124 

117 

113

102 

83 

101 

93

92 

101 

106 

104 

104

108 

110 

102 

102 

104

70 

66 

67 

85 

88

88 

a90 

94 

86 

101 

97

Nov.

99 

82 

90 

99 

99

92

84 

76 

77

84 

84 

80 

76 

78

76 

b2 

56 

54 

70

72 

64 

70 

b6 

70

67 

61 

82 

86 

72

Dec.

67 

66 

68 

90 

103

101 

86 

76 

72

56 

74 

72 

74 

72

66 

62 

64 

64 

61

*70 

67 

80 

74 

64

62 

70 

66 

62 

56 

64

Jan.

61 

64 

b48 

b4O 

b38

b41 

b40 

b42 

b45

b52 

b50 

*b48 

b50 

b49

b42 

b36 

b42 

b40 

b45

43 

38 

45 

*51 

47

40 

40 

a35 

b29 

b25 

b28

Feb.

b27 

b29 

b29 

*b30 

b31

b28 

b31 

b31 

b29 

b30

a35 

a38 

a3b 

a34 

a35

a36 

a39 

a42 

a47 

a54

a60 

55 

*55 

58 

54

58 

54 

52

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Wflv

June 

July 

Augu 

Sept

Ha

lendar year 1948 ........... ...........

ter year 1948-49 .......................

Mar.

50 

45 

42 

45 

45

42 

42 

46 

42 

35

35 

38 

35 

34 

30

32 

34 

36 

34 

35

37 

38 

35 

37 

36

32 

26 

30 

27 

35 

32

Apr.

35 

33 

31 

27 

26

30 

38 

64 

70 

78

76 

70 

97 

122 

117

115 

128 

138 

148 

226

316 

346 

408 

436 

500

580 

616 

616 

676 

b98

Secondfoot-days

3,033 

2,304 

2,197

55,340

1,344 

1,136 

1,142 

6,883 

17,411 

8,fa01 

2,572 

2,404 

2,671

51,598

May

604 

616 

820 

856 

B89

584 

500 

41 b 

382 

504

660 

720 

628 

612 

/84

734 

612 

596 

532 

576

452 

456 

508 

512 

500

508 

464 

428 

420 

404 

334

Maximum

130 

99 

103

1,250

64 

60 

50 

698 

8b6 

725 

158 

168 

137

856

June

280 

258 

220 

235 

232

232

244 

259 

265 

268

2(1 

295 

292 259' 

223

211 

241 

500 

725 

600

456 

340 

274 

348 

265

217 

192 

146 

101 

72

July

64 

58 

79 

123 

123

111 

103 

134 

144 

158

139 

97 

69

64 

57

51 

bl 

52 

47 

47

54 

64 

57 

82 

93

86 

84 

79 

69 

64 

69

Minimum

66 

54 

56

2?

25 

27 

26 

26 

334 

72 

47 

45 

48

25

Aug.

6b 

58 

54 

57 

54

48 

50 

162 

168 

148

125 

127 

125 

116 

103

77 

82 

68 

57 

53

47 

45 

68 

56 

59

53 

54 

62 

61 

52 

50

Mean

97.8 

76.8 

70.9

151

43.4 

40.6 

36.8 

229 

562 

283 

83.0 

77.5 

89.0

141

Sept.

53 

58 

59

61 

66

69 

75 

82 

87

103

125 

134 

137 

132 

132

99 

53 

48 

71 

103

95 

89 

89

97 

93

89 

79 

80 

95

118

Runoff In 

acre-feet

6,020 

4,570 

4,360

109,800

2,670 

2,2bO 

2,270 

13,650 

34,530 

16,860 

5,100 

4,770 

b,300

102,400

Peak discharge (base, 810 sec.-ft.).- May 4 (2 a.m.) 1,000 see.-ft.j May 16 (2 a.m.) 887 sec.-ft.j 

Aug. 8 ;7 p.m.) 1,070 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and recorda for stations 

on nearby streams.

b Stage-discharge relation affected by Ice.

939921 0-51-11
152 GUNNISON RIVER BASIN

Kahnah Creek near Whitewater, Colo.

Location.- Water-stage recorder and concrete control, lat. 38°59', long. 108°14', In

 s'ec. 34, T. 12 S., R. 97 W., a quarter of a mile downstream from Intake of pipe line 

for Grand Junction Water supply and 17 miles east of Whi-fcewater.

Drainage area.- 55.0 square miles.

Records available.- October 1917 to September 1921 and October 1933 to September 1949 In

 reports of Geological Survey. October 1917 to September 1921 and August 1922 to September 1949 in reports of State engineer.

Average discharge (combined flow).- 31 years, 43.1 second-feet.

Extremes (combined flow).- Maximum discharge during year, 582 second-feet May 25; minimum 

dally, 7.b" secona-reet Mar. 24-27.

1917-21, 1922-49: Maximum discharge, 1,630 second-feet June 6, 1921 (gage height, 

4.5 feet, site and datum then in use), from rating curve extended above 700 secondfeet; minimum daily, 4.3 second-feet Dec. 19, 1939.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnlch are fair. Figures of flow diverted for Grand Junction water supply (obtained 

from several readings made each day on Cippolettl weir) and Raber ditch furnished by 

State engineer and added to monthly discharge to give total flow of stream. Regulation by a few small reservoirs above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.4 

4.8 

4.3

6.4

5.4 

4.8 

3'. 8 

3.5 

3.0

3.2 

3.5 

3.5 

3.8 

4.3

4.3 

4.3 

4.3 

4.3 

4.3

3.5 

4.3 

4.3 

3.5 

3.2

3.5 

3.5 

5.9 

6.9 

6.4 

5.9

Nov.

*6.4 

5.9 

6.4

5.4

b4.8 

5.4 

5.4 

b4.8 

b4.8

b5.8 

b5.8 

b5.8 

6.4 

5.4

3.8 

5.9 

b8. 5 

bS.l

b7.9

b7.9 

b5.4 

3.6 

3.5 

3.2

4.8 

b5.0 

b4.2 

b4.2 

*b4.8

Dec.

b5.4 

4.8 

4.8

4.8

4.8 

5.4 

5.9 

5.4 

4.3

4.3 

4.3 

3.8 

3.8 

3.8

b3.8 

3.5 

3.5 

4.3 

3.8

3.5 

3.5 

4.3 

b3.8 

b5.4

b3.6 

b4.» 

4.3 

b4.0 

b3.4 

b3.6

Month

Ooto 

Novel 

Deoe

Ca.

Janui 

Febn 

Marc 

Apri 

MAY.

June 

July 

Augui 

Sept

Wa

Aar......... ......

Lendar year 1948 . . 

iry. ...............

sober. .............

ter year 1948-49 . .

Jan.

3.8 

4.0 

3.6

3.4

4.0 

*4.4 

4.4 

4.0 

4.2

4.4 

4.0 

4.4 

4.2 

4.0

3.6 

3.4 

3.4 

3.6

4.0

4.2 

4.4 

4.4 

4.6 

4.4

4.4 

4.6 

4.6 

4.4 

4.2 

*4.0

Feb.

4 

4 

4

3

3 

3 

3 

3 

3

3 

4 

4 

3 

3

3 

3 

3 

2. 

2

2. 

Z 

2.

3. 

3.

3. 

3. 

*3.

0 

2 

2 

0 

6

2 

6 

6 

4 

6

8 

0 

0 

4 

2

4 

4 

4 

2 

2

2 

2 

2 

4 

4

4 

4 

5

Mar.

3 

3 

3.

3 

3.

3. 

3. 

3 

3 

3.

3. 

3. 

3. 

3. 

3.

3. 

3.

3. 

4. 

4.

3.

3. 

3.

3. 

3.

3. 

3. 

3. 

3. 

4. 

3.

5 

5 

2 

2 

2

2 

5 

5 

2 

2

2 

2 

2 

2 

2

5 

5 

5

3 

3

8 

5 

2 

0 

0

0

e

2 

8 

3 

2

Apr.

4.8 

4.8 

3.0 

3.0 

4.3

5.4 

7.4 

9.9 

7.4 

5.4

4.8 

8.0 

11 

9.0 

8.5

9.9 

15 

18 

22 

19

21 

26 

30 

35 

41

48 

47 

44 

48 

47

May

41 

48 

68 

72 

72

62 

56 

50 

50 

79

122 

132 

129 

172 

226

194 

158 

148 

148 

148

135 

158 

208 

280 

336

32»

253 

330 

295 

235

Observed

Seoondfoot-days

136.9 

166.9 

132.2

11,623.1

126.4 

94.1 

105.3 

567.6 

5,625 

3,804 

854 

697 

329.3

12,038.7

Discharge in second-feet

i Maximum

6.9 

8.5 

5.9

596

4.6 

4.2 

4.3 

48 

336

44

3* 

18

336

Peak discharge, combined flow (base, 45O

Minimum

3.0 

3.2

3.4

1.2

3.4 

2.2 

3.0 

3.0 

41 

35 

15 

15 

5.9

2.2

sec .'-ft

Mean

4.42 

5.56 

4.26

31.8

4.08 

3.36 

3.40 

18.9 

162 

127 

27.5 

22.5 

11.0

33.0

Runoff in 

acre-feet

272 

331

262

23,050

251 

187 

209 

1,130 

9,970 

7,550 

1,690 

1,380 

653

23,880

June

155 

125 

116 

129 

132

135 

122 

190 

190 

199

186 

176 

194 

169 

148

145 

138 

204 

199 

142

187 

83 

81 

77 

56

48 

47 

41 

35 

35

July

33 

32 

35 

43 

44

38 

36

33 

28

32

28 

25 

21 

20 

18

22 

23 

26 

26 

25

25 

26 

28

3$ 

27

29 

26 

22

17 

15

Diversions 

(acre-feet)

421

277 

276

5,810

280 

265 

280 

369 

838 

811 

883 

945 

702

6,350

Aug.

15 

17 

22 

27 

26

25 

16 

26 

26 

25

25 

23 

22 

20 

21

27 

25 

17 

19 

18

17 

27 

30 

28 

26

24 

18 

18 

21 

22 

24

Sept.

15 

14 

14 

12 

8.0

6.9 

5.9 

5.9 

6.9 

9.9

11 

14 

16 

18 

16

15 

14 

12 

11 

9.0

8.5 

8.0 

8.0 

8.0 

8.5

9.9

9.a

9.9 

14 

11

Adjusted for div erslon

Runoff 

in 

acre-feet

693 

608 

538

28,850

531 

452 

489 

1,500 

10,810 

8,360 

2,570 

2,320 

1,360

30,230

Mean 

[secondfeet)

11.3 

10.2 

8.75

39.7

8.63 

8.14 

7.95 

25.2 

176 

141 

41.8 

37.7 

22.9

41.8

.1.- May 25 (7 p.m.) 582 sec. -ft.

Hote.- Ho gage-height record Jan. 2 to Feb. 27 (stage-discharge relation affected by ice during 

mostof period)( discharge computed on basis of 2 discharge measurements, weather records, and 

records for stations on nearby streams.
DOLORES RIVER BASIN 153

Dolores River at Dolores, Colo.

Location.- Water-stage recorder, lat. 37°28', long. 108°30', In sec. 9, T. 37 N., R. 15 

877850 feet upstream from bridge on State Highway 184 in Dolores and a quarter of a 

mile upstream from Lost Canyon Creek. Datum of gage is 6,924.91 feet above mean sea 

level, datum of 1929.

Drainage area.- 556 square miles.

Records available.- June 1895 to October 1903, August 1910 to December 1912 (at site just 

downstream from Lost Canyon Creek), May 1922 to September 1927 (monthly discharge), and 

October 1933 to September 1949 in reports of Geological Survey. June 1895 to October 

1903, August 1910 to December 1912, and April 1922 to September 1949 in reports of 

State engineer.

Average discharge.- 28 years (1921-49), 488 second-feet.

Extremes'.- Maximum discharge during year, 8,140 second-feet June 19 (gage height, 7.04 feet), 

from rating curve extended above 5,800 second-feet; minimum daily, 22 second-feet Nov 28 

1895-1903, 1910-12, 1922-49: Mqximum discharge, 10,000 second-feet Oct. 5, 1911 (gage 

height, 10.2 feet, site and datum then in use), from rating curve extended above 2 800 

second-feet; minimum daily, 8 second-feet Aug. 16, 1896.

Remarks.- Records good except those for periods of no gage-height record, which are fair 

Diversions above station for irrigation.

Revisions (water year).- W 859: 1937.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

81 

72 

68 

65 

68

72 

70 

63 

62 

59

56 

54 

53 

52 

54

54 

52 

52 

60 

65

65 

60 

56 

54 

52

50 

50 

72 

63 

70 

71

Nov.

66 

61 

61 

62 

50

43 

55 

51 

33 

38

65 

51 

55 

59 

58

*53 

56 

28 

26 

43

41 

33 

45 

47 

47

37 

34 

22 

33 

33

Dec.

42 

44 

43 

42 

38

41 

46 

48 

45 

45

48 

50 

*48 

50 

54

50 

49 

48 

42 

40

46 

50 

54 

50 

45

46 

50 

54 

44 

*44 

48

Jan.

49 

47 

44 

34 

35

35 

36 

42 

41 

42

46 

48 

52 

60 

52

48 

44 

40 

39 

40

40 

41 

42 

43 

45

44 

*41 

41 

39 

37 

39

Feb.

41 

41 

42 

41 

40

39 

37 

41 

39 

38

39 

41 

44 

49 

48

47 

47 

47 

47 

47

47 

*48 

51 

55 

62

64 

56 

53

Month

Oeto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948 

ary

ember ...................................

ter year 1948-49 .......................

Peak discharge (base, 1,800 sec. -ft.}.- M£

* Winter discharge measurement made on thl 

Note.- No gage-height record Dec. 1 to Mai 

relation affected by Ice during most of peri 

ments, weather records, and records for near

Mar.

53 

50 

50 

53 

56

60 

62 

62 

62

61

*59 

63 

66 

64 

66

68 

74 

80 

90

115

110 

110 

107 

105 

100

96 

96 

97 

94 

92 

90

Apr.

*

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot-days

1,895 

1,386 

1,444

186,415

1,326 

1,291 

2,411 

23,685 

53,379 

69,990 

21,285 

8,134 

4,469

190,695

93 

92 

91 

92 

100

118 

155 

190 

280 

260

300 

350 

400 

432

461

600 

766 

844 

745 

804

932 

220 

520 

770 

910

910 

770 

590 

980 

910

May

1,620 

1,870 

2,210 

1,990 

1,520

1,250 

977 

796 

896 

1,330

1,880 

1,880 

1,600 

1,690 

2,110

2,180 

1,740 

1,610 

1,420 

1,510

1,220 

1,210 

1,430 

1,780 

1,960

2,430 

2,200 

2,320 

2,430 

2,360 

1,960

Maximum

81 

66 

54

4,420

60 

64 

115 

1,980 

2,430 

5,930 

1,390 

411 

245

5,930

June

1,760 

1,370 

1,410 

1,360 

1,290

1,280 

1,250 

1,410 

1,520 

1,810

2,020 

2,200 

2,820 

2,510 

2,500

2,690 

2,890 

4,850 

5,930 

4,640

3,640 

2,900 

2,650 

2,860 

2,090

1,960 

1,760 

1,660 

1,540 

1,420

July

1,330 

1,390 

1,380 

1,260 

1,170

1,030 

1,020 

919 

834 

1,020

868 

748 

669 

584 

520

460 

420 

402 

384 

398

367 

330 

440 

393

618

532 

380 

314 

350 

380 

375

Aug.

367 

350 

346 

330

311

326 

380 

411 

288 

273

232

219 

228 

265

251

238 

255 

238 

228

216

208 

193 

208 

219 

280

219 

213 

205 

205 

219 

213

Minimum Mean

50 61 . 1 

22 46.2 

38 46.6

22 509

34 42.8 

37 46.1 

50 77.8 

91 790 

796 1,722 

1,250 2,333 

314 687 

193 262 

67 149

22 522

Sept.

208 

213 

210 

205 

199

196 

199 

232 

232 

245

245 

158 

112 

103 

94

81 

73 

67 

88 

103

107 

107 

107 

114 

121

119 

121 

121 

139

150

Runoff In 

acre-feet

3,760 

2,750 

2,860

369,800

2,630 

2,560 

4,780 

46,980 

105,900 

138,800 

42,220 

16,130 

8,860

378,200

y 3 (1:15 a.m.) 2,580 sec. -ft.; May 16 (3 a.m.) 2,460 

me 19 (5 a.m.) 8,140 sec. -ft. 

s day. 

. 10, Mar. 14 to Apr. 5, Apr. 8-13 (stage-discharge 

ods); discharge computed on oasis of 4 discharge measure 

by stations.
154 DOLORES RIVER BASIN

Dolores River near McPhee, Colo.

Location.- Water-stage recorder, lat. 37°34', long. 108°34', in NE^ sec. 12, T. 38 N. , 

K. 16 tf., 0.8 mile downstream from Beaver Creek and 4| miles northwest of McPhee. 

Datum of gage is 6,666.45 feet above mean sea level, unadjusted.

Drainage area.- 793 square miles.

Records available.- October 1938 to September 1949.

Average discharge.- 11 years, 424 second-feet.

Extremes.- Maximum discharge during year, 7,530 second-feet June 19 (gage height, 7.10 

reet); minimum daily, 0.6 second-foot Sept. 19-24.

1938-49: Maximum discharge, 8,650 second-feet Oct. 13, 1941 (gage height, 7.58 

feet), from rating curve extended above 5,900 second-feet; minimum daily, that of 

Sept. 19-24, 1949.

Remarks.- Records excellent above 100 second-feet and good below except those for periods 

or no gage-height record, which are fair. Montezuma Canal diverts water just below 

station at Dolores to irrigate 30,000 acres in Montezuma Valley.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.0 

2.8 

2.4 

2.2 

2.2

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.4

2.4 

2.6 

2.8 

3.6 

3.6

3.2 

3.2 

3.0 

2.8 

2.8

2.8 

3.2 

8.2 

6.4 

4.0 

3.8

Nov.

4.6 

6.4 

5.8 

7.6 

32

43

27 

9.4 

37 

48

18 

15 

8.8 

13 

14

*8.2 

7.0 

6.0 

5.0 

5.4

4.9 

4.1 

4.6 

4.9 

5.1

4.5

3.7 

2.5 

1.8 

1.9

Dec.

2.0 

2.0 

2.0 

1.8 

1.6

1.5 

1.7 

1.8 

1.7 

2.5

5.0 

10 

*16 

17 

16

16 

16 

16 

16 

15

17 

21 

24 

27 

26

24

25 

32

37 

*35 

36

Jan.

37 

35 

31 

30 

30

31 

32 

34 

36 

35

38 

40 

42 

44 

43

40 

37 

36 

35 

36

37 

38 

39 

39 

40

40 

*38 

37 

35 

34 

34

Feb.

36 

37 

37 

37 

36

35 

34 

34 

36 

35

34

36 

38 

40 

40

41 

41 

41 

41 

42

41 

*41 

45 

50 

63

84 

80 

68

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Ma v

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Peak discharge (base, 1,900 sec. -ft.).- Ap

sec. -ft.; May 11 (5 a.m.) 2,430 sec. -ft.; Ma 

sen. -ft.; June 13 (7:45 a.m.) 2,640 sec. -ft. 

* Winter discharge measurement made on thi 

Note.- No gage-height record Nov. 18 to Ma 

most of period); discharge computed on basis 

ords for nearby stations.

Mar.

62 

58 

56 

82 

102

96 

96 

98 

88 

84

*74 

60 

56 

52 

43

43 

58 

64 

83

119

116 

119 

116 

98 

91

36 

29 

25 

26 

24 

19

Apr.

1,

1, 

1, 

1, 

1, 

1,

1, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2, 

2,

Secondfoot-days

91.4 

359.2 

465.6

151,719.7

1,133 

1,223 

2,173 

36,810 

51,421 

59,957 

7,749.3 

263.4 

68.7

161,714.6

21 

20 

20 

23 

34

64 

105 

265 

276 

249

265 

553 

835 

940 

010

240 

550 

570 

560

660

790 

110 

450 

620 

890

840 

630 

200 

600 

420

May

1,960 

2,100 

2,600 

2,340 

1,780

1,520 

1,200 

979 

952 

1,360

2,040 

1,990 

1,600 

1,590 

1,920

2,000 

1,590 

1,500 

1,300 

1,320

1,020 

970 

1,110 

1,450 

1,580

2,010 

1,870 

2,020 

2,060 

 2,010 

1,680

Maximum

8.2 

48

37

3,800

44

84 

119 

2,890 

2,600 

5,480 

961 

61 

9.0

5,480

June

1,510 

1,160 

1,150 

1,100 

1,050

1,020 

997 

1,140' 

1,280 

1,480

1,630 

1,760 

2,280 

2,070 

2,030

2,120 

2,570 

4,870 

5,480 

4,130

3,150 

2,530 

2,320 

2,520 

1,880

1,680 

1,460 

1,400 

1,170 

1,020

July

925 

961 

952 

808 

728

516 

501 

397 

285 

430

346 

236 

175 

111 

53

29 

20 

15 

13 

.11

6.5 

1.3 

13 

7.5 

59

114 

23 

6.0 

4.5 

1.6 

.9

Aug.

5 

6

7 

7 

7

6 

16 

61 

15 

9

5 

4 

4 

5 

6

5 

5 

5 

5 

5

4 

4 

4 

7 

8

9 

8 

6 

5 

5 

5

Minimum Mean

2.0 2.95 

1.8 12.0 

1.5 15.0

1.5 415

30 36.5 

34 43.7 

19 70.1 

20 1,230 

952 1,659 

997 1,999 

.9 250 

4.0 8.50 

.6 2.29

.6 443

.5 

.5 

.5 

.5

.0

.5

.7

.5 

.5

.0 

.0 

.5

.0 

.0 

.5

.0 

.0

.5 

.5 

.5

.5 

.5

.7 

.5 

.0 

.5 

.5 

.5

Sept.

4.5 

4.0 

4.0 

3.4

3.4

3.1 

3.1 

3.1 

3.1 

3.4

9.0 

6.5 

1.9 

1.3 

.9

.8 

.8 

.7 

.6 

.6

.6 

.6

.6 

.6

.7

.7 

.7 

.7 

1.9 

3.4

Runoff In 

acre-feet

181 

712 

924

300,900

2,250 

2,430 

4,310 

73,010 

102,000 

118,900 

15,370 

522 

136

320,700

r. 25 (1 a.m.) 3,480 sec. -ft.; May 3 (4:15 a.m.) 3,210 

y 16 (5 a.m.) 2,200 sec. -ft.; May 26 (6:30 a.m.) 2,280 

; June 19 (8 a.m.) 7,530 sec. -ft. 

s day. 

r. 10 (stage-discharge relation affected by ice during 

of 4 discharge measurements, weather records, and rec-
DOLORES RIVER BASIN

Dolores River at Gateway, Colo.

Location.- Water-stage recorder, lat. 38°41', long. 108°58', in SWi sec. 15, T. 51 N., 

H. 19 W., 500 feet downstream from bridge on State Highway 141, 0.3 mile northwest 

of Gateway, 0.3 mile downstream from West Creek, and 8 miles upstream from Colorado 

Utah State line. Datum of gage is 4,547.44 feet above mean sea level, unadjusted.

Drainage area.- 4,350 square miles.

Records available.- March 1937 to September 1949.

Average discharge.- 12 years, 1,076 second-feet.

Extremes.- Maximum discharge during year, 9,360 second-feet June 20 (gage height, 7.42 

feet) , from rating curve extended above 6,600 second-feet; minimum daily, 64 secondfeet Jan. 4.

1937-49: Maximum discharge, 15,400 second-feet May 14, 1941 (gage height, 11.33 

feet, present site); minimum daily, 45 second-feet Aug. 18, 1940.

Remarks.- Records good. Diversions above station for irrigation. Records of chemical 

analysis and water termperatures for the water year 1949 are given in Water-Supply 

Paper 1163.

Rating table, water year 1948-49, except periods of ice effect 

(gage height, In feet, and discharge, in second-feet)

0.1 80 1.0 445 3.5 3,060 

.4 170 1.5 800 6.2 7,160 

.8 335 1.9 1,140 7.1 8,780

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

131 

125 

104 

131 

119

119 

134 

146 

137 

131

128 

125 

122 

122 

122

128 

125 

119 

116 

113

113 

113 

113 

113 

116

107 

98 

155 

254 

230 

186

Nov.

206 

170 

155 

158 

161

155 

140 

140 

143 

131

125 

155 

167 

158 

155

152 

155 

155 

146 

134

143 

143 

131 

116

101

107 

89 

80 

143

116

Dec.

149 

125 

*131 

140 

134

137 

89 

143 

131 

125

128 

152 

234 

210 

214

194 

167 

161 

149 

125

134 

149 

178 

155 

b8 6

blOl 

140 

182 

137 

119 

104

Jan.

161 

206 

b!37 

b64

b86

blOl 

b!04 

bl!3 

101 

119

*152 

218 

266 

b430 

936

375 

170 

137 

140 

137

170 

202 

238 

262 

214

242 

214 

202 

b!34 

bl!6 

b!16

Feb.

b!04 

b!43 

*149 

146 

b!52

b!34 

b!40 

164 

186 

158

170 

158 

182 

198 

218

186 

182 

190 

206 

210

246 

335 

471 

824 

960

1,000 

864

768

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948 ....... ... . . .

ter year 1948-49 .......................

Mar.

580 

445 

*439 

629 

559

594 

464 

464 

427 

365

335 

340 

326 

308 

299

304 

312 

335 

330 

350

375 

385 

391 

375

370

345 

322 

317 

299 

290 

286

Apr.

1, 

1,

1, 

2, 

2,

2, 

3, 

3, 

4, 

4,

5, 

5, 

6, 

6,

7,

7, 

7, 

6, 

6, 

6,

Secondfoot-days

4,095 

4,230 

4,523

403,793

6,263 

8,844 

11,960 

95,269 

117,690 

111,660 

35,668 

10,007 

2,558

412,767

Peak discharge (base, 4,000 sec. -ft.).- Apr. 26 (Ida.

299

317 

317 

282 

266

266 

290 

385 

615

030

000 

992 

320 

000 

190

370 

050 

880

300 

700

270 

660 

500 

940 

410

500

230 

540 

100 

250

May

5,680 

4,960 

5,330 

5,810 

5,340

4,360 

3,700 

3,190 

2,800 

2,730

3,280 

4,700 

4,730 

4,180 

4,020

4,260 

4,320 

3,900 

3,580 

3,200

2,850 

2,560 

2,310 

2,370 

2,680

2,980 

3,470 

3,420 

3,720 

3,720 

3,540-

Maximum

254 

206 

234

8,720

936 

1,000 

629 

7,500 

5,810 

8,890 

2,330 

1,820 

152

8,890

June

3,050 

2,690 

2,330 

2,100 

2,040

1,950 

1,900 

1,920 

2,060 

2,240

2,380 

2,820 

3,200 

3,640

3,700

3,650 

3,880 

5,100 

7,720 

8,890

7,270 

6,120 

5,200 

5,520 

4,740

3,920 

3,420 

2,990 

2,740 

2,480

July

2,260 

2,140 

2,330 

2,320 

2,130

1,890 

1,710 

1,600 

1,420 

1,470

1,360 

1,250 

1,240 

1,040 

968

896 

800 

744 

678

657

629 

615 

587 

538 

706

872 

792 

587 

552 

478 

409

Aug.

360 

335 

330 

317 

294

286 

317 

403 

1,820 

1,160

636 

445 

312 

258 

326

218 

167 

186 

190 

170

158 

146 

134 

137 

155

137 

134 

125 

113 

104 

134

Minimum Mean

98 132 

80 141 

86 146

54 1,103

64 202 

104 316 

286 386 

266 3,176 

2,310 3,796 

1,900 3,722 

409 1,151 

104 323 

66 85.3

64 1,131

m. ) 7,750 sec. -ft.; May 4 (8 a.m.

Sept.

113 

101 

95 

89 

86

80 

74 

72 

68 

68

66 

86 

95 

98 

89

86 

80 

78 

80 

78

72 

76 

72 

72 

68

76 

86 

92 

110 

152

Runoff In 

acre -feet

8,120 

8,390 

8,970

800,900

12,420 

17,540 

23,720 

189,000 

233,400 

221,500 

70,750 

19,850 

5,070

818,700

) 6,280 setv

. . . . . ac.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
156 DOLORES RIVER BASIN

Twomile Creek near La Sal, Utah

Location.- Water-stage recorder, lat. 38°21', long. 109°07', in sec. 24, T. 28 S., R. 25 

E7~;Tust downstream from Pole Springs Canyon and 8| miles northeast of La Sal.

Drainage area.- 21.9 square miles.

Records available.- August 1944 to September 1949.

Extremes.- Maximum discharge during year, 82 second-feet Apr. 24 (gage height, 2.95 feet), 

rrom rating curve extended above 57 second-feet; minimum daily. 0.2 second-foot Jan. 30 

to Feb. 2, Feb. 6, Aug. 11-18.

1944-49: Maximum discharge, 96 second-feet May 1, 1945 (gage height, 3.07 feet), 

from rating curve extended above 57 second-feet; minimum daily, 0.1 second-foot July 

1-8, July 10 to Sept. 17, 1946. ^

Remarks.- Records fair. Three diversions above station for irrigation.

Discharge, in second-feet, water year October 1948' to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4

.3 

.3 

.4

.4 

.3

.4

.4 

.4 

.4 

.4

.5

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4

.5 

.5 

.5 

.5

Nov.

0.5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.4 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.4

Dec.

0.

Jan.

0.3 

.3 

.3

.3

.3 

.3 

.3 

.4

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.2 

.2

Feb.

0.

Month

Octo 

Nove 

Dece

Ca

janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ............................... ....

mber. ........................... . ... .

lendar year 1948 

iry

1..... ..................................

ter year 1948-49 ...............

Mar.

0.5 

.5 

.5 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.7 

.7 

.7 

.9

1.1 

.3 

.5 

.8 

.8

.5 

.5 

.3 

.9 

.9

.8 

.8 

.8 

.8 

.8 

.7

Apr.

0.7 

.7 

.7 

.8

1.5

2.4 

5.5 

6.5 

8.4 

8.8

8.8 

13 

16 

16 

16

20 

25 

28 

26 

26

30 

40 

43 

49 

47

48 

43 

40 

42 

32

Secondfoot -days

12.8 

14.0 

12.4

985.1

11.4 

9.8 

27.6 

644.8 

702 

140.9 

18.6 

8.7 

12.1

1,615.1

May

28 

30 

33 

31 

30

25 

24

21 

20 

20

24 

28 

23

23 

27

28

29 

26 

22 

20

16 

15 

15 

16 

18

18 

18 

23 

21 

18 

12

Maximum

0.5 

.5 

.4

42

.5 

.4 

1.8 

49 

33 

15 

2.2 

.4 

.5

49

June

10 

8.8 

8.4 

7.6 

6.5

5.8 

8.0 

9.1 

2.8 

2.4

3 4 

4.0 

2.4 

1.7 

1.1

.8 

.7 

10 

15 

8.8

7.3 

6.5 

2.2 

2.0 

1.5

1.1 

.9 

.8 

.7 

.6

July

0.6 

.6 

.6 

1.8

2.2

1.1 

.7 

.6 

.5 

.5

.5 

.5 

.5 

.6 

.5

.5 

.4 

.4 

.4 

.4

.5 

.5 

.5 

.5 

.6

.5 

.4 

.3 

.3 

.3 

.3

Minimum

0.3 

.4 

.4

-

.2 

.2 

.5 

.7 

12 

.6 

.3 

.2 

.4

.2

Aug.

0.3 

.3

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2

.2 

.2 

.2 

.2

.2 

.2

;z

.3 

.3

.3 

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.4 

.4

Mean

0.41 

.47 

.40

2.69

.37

.35 

.89 

21.5 

22.6 

4.70 

.60 

.28 

.40

4.42

Sept.

0.

Runoff In 

acre-feet

25

28 

25

1,953

23

19 

55 

1,280 

1,390 

279 

37 

17 

24

3,200

Peak discharge (base, 10 sec.-ft.).- Apr. 24 (7:30 p.m..) 82 sec.-ft.; May 2 (9 p.m.) 52 sec.-ft.; 

June 7 ;i°:30 p.m.; 20 sec.-ft.; June 18 (9 p.m.) 35 sec.-ft.

Note.- Mo gage-height record Dec. 27 to Mar. 14i discharge computed on basis of 3 discharge measurements made several milesidownstream, weather records, and records for stations on nearby streams.
DOLORES RIVER BASIN 157

West Paradox Creek near Paradox, Colo.

Location, (revised).- Water-stage recorder, lat. 38°23'00", long. 108°59'45", In NW^SW^ sec. 

'6 a, T. 4B w., K. 19 W., at La Sal National Forest boundary and 2 miles northwest of 

Paradox.

Records available.- August 1944 to September 1949.

Extremes.- Maximum discharge during year, 182 second-feet Apr. 24 (gage height, 3.60 feet), 

from rating curve extended above 90 second-feet; minimum daily, 0.1 seconds-foot Dec. 

2-10.

1944-49: Maximum discharge not determined, occurred Sept. 27, 1948 (gage height, 

5.96 feet); minimum daily, 0.1 second-foot Mar. 1-13, 1946, Jan. 28, 29, Dec. 2-10, 1948.

Remarks. - Records good above 10 second-feet and fair below except those for periods of ice effect 

or no gage-height record, which are poor. Diversions from Geyser and Deep Creeks in Roc 

Creek Basin are stored In Buckeye Reservoir (capacity, 3,000 acre-feet) and released 

down West Paradox Creek for irrigation (see p.170). One diversion above station for 

irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 '7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.5 

2.5 

2.5 

2.5 

2.5

2.5

2.5 

2.5 

2.5 

2.5

2.5 

2.6 

2.5 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

1.8 

1.8 

1.8 

1.8 

1.8

1.4 

.6 

1.3 

.8 

.6 

.6

Nov.

0.6 

.5 

.5 

.4 

.4

.4 

.4 

.3 

*.3 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.2 

.2 

.4

.3 

.4

.4, 

.4 

.3

.4 

.3 

.4 

b.3

b.3

Dec.

bO.2 

b.l 

b.l 

*b.l 

b.l

b.l 

b.l 

b.l 

b.l 

b.l

b.4 

b.4 

.5 

.5 

.4

.4 

.4 

.3 

.4

.5

.5 

.5 

.8 

.4 

.4

.5 

.5 

.4 

.3 

.3 

.3

Jan.

0.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.4

.4 

*.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2 

.2

Feb.

0.2 

.2 

.3 

.3 

.3

.2 

.2 

.3 

*.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

Month

Goto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

0.4 

.5 

.6 

.6

1.1

1.1 

1.2 

1.0 

.5 

.4

.4 

1.1 

2.0 

2.1 

2.5

3.4 

3.2 

4.1 

6.8 

5.2

2.8 

3.0

1.7 

1.7 

1.6

1.2 

1.3 

1.4

1.3 

1.1 

1.0

Apr.

1.2

1.1 

1.3 

2.1 

5.2

11 

18 

39 

39 

26

29 

47 

47 

42 

38

47 

57 

62 

63 

68

64 

68 

57 

74 

55

52 

36 

33 

37 

38

Secondfoot-days

60.9 

11.3 

10.2

3,067.8

9.3 

8.0 

56.3 

1,157.9 

1,431 

1,507 

58U5 

357.5 

174.3

5,365.2

May

39 

47 

44 

42 

42

43 

44 

44 

42 

42

42 

43 

42 

40 

39

40 

44 

46 

44 

45

46 

48 

48 

50 

50

51 

53 

58 

59 

59 

55

Maximum

2.6 

.6 

.8

43

.4 

.3 

6.8 

74 

59 

68 

26 

18 

9.1

74

June

51 

55 

62 

58 

54

54 

51 

40 

38 

37

37 

36 

39 

43 

50

59 

60 

68 

65 

61

60 

59 

58 

58 

57

54 

54

46 

25 

18

July

22 

22 

24 

26 

26

26 

26 

23 

17 

16

16 

16 

14 

5.8 

9.7

16 

15 

15 

18 

20

20 

20 

20 

20 

20

20 

18 

17 

17 

18 

18

Minimum

0.6 

.?. 

.1

.1

.2 

.2

.4 

1.1 

39 

18 

5.8 

7.6 

2.6

.1

Aug.

18 

17 

16 

16 

16

16 

15 

15 

15 

14

14 

12 

10

11 

11

10 

8.8 

7.9 

8.5 

11

9.4 

8.2 

7.9 

7.6 

7.6

8.2 

9.4 

9.4 

9.1 

9.4 

9.1

Mean

1.96 

.38 

.33

8.38

.30 

.29 

1.82 

38.6 

46.2 

50.2 

18.8 

11.5 

5.81

14.7

Sept.

8.8 

9.1 

8.8 

7.0 

7.0

7.0 

7.0 

7.0

7.0 

6.5

6.2 

6.0 

6.5 

5.8 

6.5

6.0 

4.8 

4.8 

4.8 

4.8

4.8 

3.9 

2.6 

3.4 

4.8

4.5 

4.5 

4.8 

4.8 

4.8

Runoff In 

acre-feet

121 

22

20

6,080

18 

16 

112 

2,300 

2,840 

2,990 

1,150 

709 

346

10,640

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Jan. 5 to Feb. 8; discharge computed on basis of 1 discharge measurement, weather records, and records for nearby stations.
158 DOLORES RIVER BASIN

West Paradox Creek near Bedrock, Colo.

Location (revised).- Water-stage recorder, lat. 38°13'45", long. 108°52'15", in SE^NE^ sec.

17. T. 4V M., R. 18 W., half a mile upstream from mouth and 2 miles northeast of Bedrock.

Records available.- August 1944 to September 1949.

Extremes.- Maximum discharge during year, 151 second-feet Aug. 8 (gage height, 5.92 feet), 

from rating curve extended above 45 second-feet; minimum, 0.3 second-foot July 3, Sept.

18. 19, 27, 28.

1944-49: Maxinum discharge not determined, occurred Aag. 27, 1945; maximum gage 

height, that of Aug. 8, 1949; no flow at times in 1946, 1947, 1948.

Remarks.- Records fair. Most of flow diverted above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 . 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

5.2 

4.3 

3.8 

5.8 

7.1

6.8 

7.2 

7.7 

8.0 

8.0

8.2 

8.0 

8.0 

7.6 

7.1

7.1 

6.3 

5.8 

6.3 

6.2

6.2 

6.2 

6.7 

6.8 

6.8

6.7 

6.6 

11 

7.2 

6.4 

6.6

Nov.

6.2 

6.2 

5.5 

5.5 

5.0

5.2 

5.2 

5.0 

4.9 

4.9

5.4 

5.2

4.9 

4.9 

5.0

5.0 

5.3 

5.0 

5.0 

5.2

4.5 

4.4 

4.5 

4.5 

4.3

4.2 

4.0 

5.2 

6.0 

5.6

Dec.

6.2 

6.2 

6.6 

*6.2 

b6.0

6.2 

b6.0 

b5.8 

b5.6 

5.8

5.5 

5.5 

5.5 

5.8 

7.1

7.0 

7.0 

7.1 

b6.6 

b7.2

b7.0 

b6.8 

b7.2 

b6.6 

b5.6

b6.0 

b6. 6 

b6.8 

b6.0 

b6.0 

b6. 2

Jan.

a5.4 

a5.0 

a4.5 

a4.0 

a3.8

a4.0 

a4.0 

a4.2 

a4.4 

a5.4

a6.0 

*8.2 

14 

40 

15

all 

a8.5 

a7.8 

a7.8 

a8.4

a9.2 

alO 

all 

all 

all

all 

alO

a9.0 

a8.0 

a7.4 

a6.4

Feb.

a7.0 

a7.6 

a7.8 

aS.O 

a7.6

a7.4 

a7.8 

a8.8 

aS.O 

*b!2

15 

16 

6.6 

5.5 

6.1

7.4 

6.2 

5.4 

5.6 

6.0

7.2 

9.8 

14 

17 

23

33 

21 

17

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ........................

Mar.

13 

12 

10 

9.7 

9.3

8.6 

12 

12 

12 

11

10 

9.8 

9.8 

9.8 

10

11 

11 

11 

13 

14

12 

12 

12 

12 

12

11 

11 

11 

11 

11 

11

Apr.

13

12 

12 

11

15 

19 

25 

32 

28

16 

32 

35 

27 

22

21 

38 

35 

49

42

58

49 

48 

42 

52

45 

28 

13 

14 

18

Secondfoot-days

211.7 

151.7 

195.7

1,671.1

275.4 

303.8 

345.0 

863 

333.8 

838.6 

35.1 

57.6 

20.3

3,631.7

May

13 

18 

14 

12 

11

12 

12 

12 

9.5 

7.1

7.4 

9.5 

7.1 

4.0

4.0

4.2 

6.1 

7.1 

12 

19

13 

11 

14 

8.0 

8.6

8.0 

9.2 

14 

16 

15 

16

Maximum

11 

6.2 

7.2

32

40 

33 

14 

58 

19 

45 

5.1 

17 

5.5

58

June

17 

22 

34 

38 

32

32 

34 

26 

22 

20

21 

21 

19 

22 

22

31 

28 

45 

45 

38

38 

36 

31 

28 

34

23 

31 

29 

16 

3.6

July

1.7 

.7 

.3 

5.1 

3.0

2.6 

1.5 

al.2 

al.O 

al.O

al.5 

al.l

a. 9 

a. 7 

a. 6

a. 6 

a. 5 

a. 5 

a. 5 

.5

.P 

.6 

.5 

.8 

1.3

1.3

.9 

.9 

.9

.9 

.9

Minimum

3.8 

4.0 

5.5

0

3.8 

5.4 

8.6 

11 

4.0 

3.6 

.3 

.5 

.3

.3

Aug.

0.8 

.8 

.9 

1.3

1.3

.9 

1.1 

17 

16

>3.0

2.2 

1.3 

a. 8 

a. 6 

a. 5

a. 5

a'.S 

.5 

.5

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

.6

Mean

6.83 

5.06 

6.31

4.57

8.88 

10.8 

11.1 

28.8 

10.8 

28.0 

1.13 

1.86 

.68

9.95

Sept.

0.6 

.6 

.7 

.7

.7

.6 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5

.4

.5 

.4 

.3 

.3 

.4

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3

1.1 

5.5

Runoff In 

acre-feet

420

301 

388

3,320

546 

603 

684 

1,710 

662 

1,660 

70 

114 

40

7,200

* Winter discharge measurement made on this day. . ., 

a No gage-height record; discharge computed on basis of weather records and records for nearDy stains, 

b Stage-discharge relation affected by ice.
DOLORES RIVER BASIN 159

Buckeye Reservoir Outlet near Paradox, Colo.

Location.- Water-stage recorder and Parshall flume, lat. 38°26', long. 109°03', In sec. 

11, T. 48 N., R. 20 W., 700 feet downstream from Buckeye Reservoir and 6-| miles northwest of Paradox.

Records available.- October 1945 to September 1949. Records of monthly acre-feet, May 

to September 1945, published in Water-Supply Paper 1039, with record for West Paradox 

Creek near Paradox.

Extremes.- Maximum daily discharge during year, 59 second-feet June 16-27; minimum not 

determined, but probably no flow at times during winter.

1945-49: Maximum daily discharge, that of June 16-27, 1949; probably no flow at 

times during most winters.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.0 

H.O 

2.0 

2.0 

2.0

1.9 

1.9 

1.9 

1.9

2.0

2.0 

2.0 

1.6 

1.3

1.3

1.3

1.3 

1.3

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

.8 

a.l 

a.l 

a.l 

a.l 

a.l

Nov.

. aO.l

Dec.

' aO.l

Jan.

. aO.l

Feb.

. ao; 1

Month

Oeto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Unv

June 

July 

Augu 

Sept

Wa

ber... ..................................

lendar year 1948

ter year 1948-49 ...............

Mar.

> aO.l

Apr.

 aO.l

8.8

16

Secondfoot-days

42.1 

3.0 

3.1

2,802.2

3.1

2.8 

3.1 

27.6 

1,102 

1,481 

727.8 

401.9 

189.3

3,986.8

May

22 

30 

30 

30 

31

31

31 

32 

32 

32

32 

32

32 

32 

33

33 

33

33 

36 

40

40 

40 

40 

40 

40

40 

41 

44 

46 

47 

47

Maximum

2.0

45

16 

47 

59 

35 

19 

12

59

June

47 

53 

59 

54 

49

49 

44

36 

35

36

36 

36 

40 

45 

52

59 

59 

59 

59 

59

59 

59 

59 

59 

59

59 

59 

50 

29

23

Minimum

July

28 

28 

31 

35 

35

35 

34 

30 

21 

21

21 

21 

12 

3.8 

11

20 

20 

20 

22 

25

25 

25 

25 

25

25 

22 

22 

20 

20 

19

0.1

-

22 

23 

3.8

8.0 

3.0

-

Aug.

19 

18 

17 

17 

17

16 

16 

16 

17 

18

17 

15 

13

13 

13

12 

10 

8.2 

9.1

10

9.3 

8.0 

8.0 

J^Q 

8.0

9.3 

12 

12 

12 

12 

12

Mean

1.36 

.1

.1

7.66

.1 

.1 

.1 

.92 

35.5 

49.4 

23.5 

13.0 

6.31

10.9

Sept.

11 

12

11 

8.4 

8.4

8.2 

8.2 

8.2 

8.0 

8.0

.6 

.3 

.9 

.4 

.5

. o

.7 

.5 

.5 

.5

.5

.O 

.1 

.0 

.0

.0

.1 

.1 

.1 

.1

Runoff In 

acre-feet

84 

6.0 

6.1

5,560

6.1 

5.6 

6.1 

55 

2,190 

2,940 

1,440

375

7,910

a No gage-height record; discharge computed on basis of discharge measurement made Nov. 

timates by water commissioner of seepage through closed gates.
160 DOLORES RIVER BASIN

San Miguel River near Placerville, Colo.

Location.- Water-stage recorder, lat. 38°02', long. 108°07', in SE^ sec. 30, T. 44 N., 

K. 11 rf., 100 feet from State Highway 145, 100 feet downstream from Soecie Creek, and 

3 miles northwest of Placerville.

Drainage area.- 308 square miles.

Records available.- January to Septemoer 1909 (monthly discharge) at Saltado Ranch, 3 

miles downstream, September 1910 to November 1912 at site 2| miles upstream (excludes 

flow of Specie Creek), and March 1942 to September 1949 in reports of Geological 

Survey. September 1910 to November 1912, April 1930 to September 1934 (above Specie 

Creek; no winter records), and March 1942 to September 1949 in reports of State engineer.

Extremes.- Maximum discharge during year, 2,370 second-feet June 18 (gage height, 4.69 

feet), from rating curve extended above 1,500 second-feet; minimum daily, 48 secondfeet Jan. 5.

1909-12, 1930-34, 1942-49: Maximum discharge, 10,000 second-feet Sept. 5, 1909 

(failure of Trout and Middle Reservoir Dams); minimum daily, that of Jan. 5, 1949, 

but may have been less during period of ice effect.

Remarks.- Records fair. Diversions above station for irrigation. Slight regulation by 

Lake Hope and Trout Lake of Western Colorado Power Co. (combined capacity, 5,040 acrefeet).

Discharge, in second-feet, water year October 1946 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

99 

98 

92 

90 

98

103 

98 

96 

96 

92

90 

94 

91 

91 

91

91 

85 

85 

90 

91

90 

87 

86 

85 

82

83 

85 

95 

87 

90 

86

Nov.

86 

90 

91 

92 

83

78 

83 

80 

77 

»81

86 

80 

82 

77 

77

80 

82 

80 

78 

80

78 

72 

68 

72 

70

66 

64 

62 

64 

68

Dec.

74 

68 

76 

70 

62

*66 

64 

66 

64 

66

70 

74 

74 

80 

80

72 

66 

58 

60 

62

62 

60 

60 

58 

54

60 

60 

62 

64 

66 

68

Jan.

64 

58 

52 

50 

48

52

54 

54 

60 

68

74 

68 

»70 

66 

62

60 

58 

60 

58 

62

74 

78 

80 

80 

74

68 

64 

62 

60 

62 

64

Feb.

66 

72 

74 

76 

76

68 

74 

72 

*72 

72

74 

76 

74 

70 

64

66 

68 

68 

70 

74

76 

76 

76 

78 

78

74 

70 

67

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

uaz*y .

1..... ..................................

ter year 1948-49 .......................

Mar.

64 

60 

62 

*64 

69

61 

67 

67 

64 

66

66 

64 

63 

57 

64

66 

68 

66 

68 

72

71 

70 

71 

70 

68

69 

64 

70 

72 

70 

69

Apr.

72 

72 

71 

71 

74

82 

87 

101 

96 

92

92 

105 

115 

128 

126

142 

162 

197 

232 

256

277 

333 

397 

441 

521

513 

465 

469 

563 

545

Secondfoot-days

2,817 

2,327 

2,046

112,160

1,964 

2,021 

2,062 

6,897 

16,269 

33,154 

21,585 

6,493 

3,115

100,750

May

469 

517 

586 

568 

513

477 

441 

413 

397 

445

529 

537 

493 

493 

545

554 

517 

509 

473 

481

445 

433 

417 

513 

568

648 

635 

671 

666 

676 

640

Maximum

103 

92 

80

1,320

80 

78 

72 

563 

676 

2,080 

1,250 

310 

132

2,080

June

599 

533 

509 

521 

497

521 

537 

563 

599 

680

820 

915 

1,110 

1,140 

1,230

1,330 

1,470 

1,830 

2,080 

1,880

1,720 

1,600 

1,580 

1,540 

1^260

1,260 

1,250 

1,250 

1,190 

1,140

July

1,150 

1,230 

1,250 

1,190 

1,150

1,030 

982 

930 

923 

968

819 

750 

672 

654 

630

584 

567 

550 

545 

520

515 

465 

427 

414 

530

440 

372 

352 

332 

328 

316

Minimum

82 

62 

54

54

48 

64 

57 

71 

397 

497 

316 

132 

91

48

Aug.

310 

296 

302 

285 

277

264 

274 

285 

292 

268

234 

215 

200 

197 

188

197 

194 

194 

182 

177

166 

168 

171 

166 

163

152 

137 

134 

139 

134 

132

Mean

90.9 

77.6 

66.0

306

63.4 

72.2 

66.5 

230 

525 

1,105 

696 

209 

104

276

Sept.

124 

132 

120 

112 

105

103 

92 

91 

91 

103

115 

112 

110 

120 

115

112 

105 

97 

96 

97

96 

92 

91 

92 

101

99 

96 

96 

101 

99

Runoff In 

acre-feet

5,590 

4,620 

4,060

222,500

3,900 

4,010 

4,090 

13,680 

32,270 

65,760 

42,810 

12,880 

6,180

199,800

Peak discharge (base, 900 sec.-ft.).- June 18 (9 p.m.) 2,370 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 20, Nov. 22 to Feb. 26 (no gage-height record 

Feb~I6^20; discharge computed on basis of 1 discharge measurement, weather records, and records for 

nearby stations).
DOLORES RIVER BASIN 161

San Miguel River at Naturita, Colo.

Location.- Water-stage recorder, lat. 38"13', long. 108°34', in SE^SW^ Sec. 19, T. 46 N., 

KT~I5~~W., at bridge on State Highway 97 In Naturita and 1.2 miles downstream from 

Naturita Creek. Datum of gage Is 5,392.85 feet above mean sea level, datum of 1929.

Drainage area.- 1,080 square miles.

Kecords available.- October 1917 to September 1927 and October 1940 to September 1949 in 

reports or Ueological Survey. April 1918 to September 1929 and October 1940 to 

September 1949 In reports of State engineer. (April to September 1940 In files of 

Bureau of Reclamation.)

Average discharge.- 21 years, 414 second-feet.

Extremes.- Maximum discharge during year, 3,960 second-feet June 23 (gage height, 6.68 

1'eetJ; minimum dally, 37 second-feet Sept. 10.

1917-29, 1940-49: Maximum discharge, 7,100 second-feet Apr. 15, 1942 (gage.height, 

9.80 feet), from rating curve extended above 3,800 second-feet; minimum dally, that 

of Sept. 10, 1949.

Remarlcs.- Records good except those for periods of ice effect or no gage-height record, 

wnicn are fair. Diversions above station for irrigation.

Rating tables, water year 1948-49, except periods of Ice effect

(gage height, in feet, and discharge, In second-feet)

(Shifting-control method used Oct. 28 to Nov. 3o)

Oct. 1 to Apr. 12 Apr. 13 to Sept. 30

O.6 SO

.7 60

.9 86

1.2 138

1.5 200

1.6 225 1.2 

1.6

65

122

220

2.O 

2.6 

3.3 

4.0

340

590

940

1,350

4.5 

5.0 

5.8

1,710

2,160

2,970

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7

e

9 

10

11

12 

13

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

83 

91 

116 

107 

109

118 

120 

115- 

113 

111

109 

109 

109 

109 

111

111 

109 

100 

102 

106

106 

108 

102 

100 

99

96 

96 

109 

115 

102 

102

Nov.

97 

100 

100 

107

102

94 

97 

100 

 94 

89

100 

97 

91 

94 

88

92 

96 

92 

85 

94

99 

82 

62 

66 

68

52 

50 

56 

70

75

Dec.

82 

78 

88 

 86 

78

80 

78 

84 

80 

80

84 

88 

94 

96 

96

92 

88 

84 

76 

78

80 

78 

76 

72 

62

76 

74 

76 

8O 

86 

88

Jan.

88 

80 

7O 

62 

56

80 

100 

88 

98 

108

110 

 112 

108 

98 

90

80 

80 

84 

80 

94

110 

112 

110 

102 

96

90 

90 

84 

74 

80 

78

Feb.

82 

88 

92 

98 

100

90 

100 

105 

 116 

112

110 

135 

125 

118 

112

110 

115 

120 

125 

125

125 

130 

130 

130 

130

130 

125 

120

Month

Octo 

Move

Dece

Ca

Janu. 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu, 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base. 1,760 sec. -ft.).- AD

sec.-rt.j June 23 (4:3O p.m.; 3,960 sec. -ft. 

* Winter discharge measurement made on thl 

Note.- Stage-discharge relation affected b 

Feb. 4-9. No gage-height record Nov. 24, 28 

Mar. 2 (stage-discharge relation affected by 

of 3 discharge measurements, weather records

Mar.

118 

118 

125 

*120 

125

120 

116 

124 

113 

113

118 

115 

109 

102 

104

111 

125

113 

111 

124

125 

118 

118 

116 

113

107 

102 

102 

109 

113 

107

Apr.

109 

115 

111 

106 

100

111 

134 

178 

198 

189

174 

238 

360 

408 

412

476 

635 

755 

805 

1,010

1,030 

1,210 

1,390 

1,490 

1,460

1,590 

1,380 

1,180 

1,270 

1,240

Secondfoot-days

3,291 

2,589 

2,538

162,629

2,792 

3,198 

3,554 

19,864 

26,275 

38 , 057 

20,742 

5,555 

1,738

130,193

May

946 

951 

1,160 

1,150 

984

885 

841 

750 

671

700

918 

1,030 

902 

841 

924

951 

874 

852 

800 

705

648 

594 

599 

658

730

874 

846 

890 

874 

902 

825

Maximum

120 

107 

96

2,990

112 

135 

125 

1,590 

1,160 

2,990 

1,290 

477 

106

2,990

June

735 

648 

586 

581 

550

532 

572 

617 

666 

705

830 

995 

1,240 

1,220 

1,270

1,320 

1,620 

2,400 

2,990 

2,390

2,020 

1,770 

1,940 

1,920 

1,430

1,410 

1,360 

1,350 

1,250 

1,140

July

1,100 

1,180 

1,290 

1,180 

1,3:40

956 

940 

852 

846 

929

795 

730 

658 

604 

599

545 

518 

514 

509 

484

480 

444 

412 

412 

504

514 

384 

344 

310 

292 

277

Aug.

262 

256 

250 

235 

226

253 

313 

304 

477 

280

226 

193 

183 

162 

145

138 

140 

138 

134 

116

110 

100 

127 

116 

106

98 

92 

81 

78 

138 

78

Minimum Mean

83 106 

50 86.3 

62 81.9

49 444

56 90.1 

82 114 

10£ 115 

100 662 

594 848 

532 1,269 

277 669 

78 173 

37 57.9

37 357

Sept.

76 

72 

70 

67 

62

57 

54 

49 

48 

37

43 

52 

62 

60 

63

60 

54 

52 

48 

44

43 

42 

40 

44

57

63 

62 

62 

106 

89

Runoff In 

acre-feet

6,530 

5,140 

5,03C

322,600

5,540 

6,340 

7,050 

39,400 

52,120 

75,480 

41,140 

11,020 

3,450

258,200

r. 25 (2 a.m.) 2,320 sec. -ft.; June 19 (7 a.m.) 3,580 

; Aug. 9 (2:30 p.m.) 2.31O sec. -ft. 

s day. 

y Ice Nov. 27, Dec. 1, Dec. 4 to Jan. 2, Jan. 12-29, 

, Dec. 2, 3, Jan. 3-11, Jan. 30 to Feb. 3, Feb. 10 to 

loe during most of periods); discharge computed on basis 

, and records for nearby stations.
162 DOLORES RIVER BASIN 

Fall Creek; near Fall Creek, Colo

Location.- Water-stage recorder, lat. 37°58', long. 10S°01', in sec. 24, T. 43 N., R. 11 

W., a .7 miles upstream from mouth and 2.8 miles south of Fall Creek. Datum of gage is 

7,928.79 feet above mean sea level (Bureau of Reclamation bench mark). Prior to Aug. 

25, 1949, at datum 2.00 feet higher.

Drainage area.- 33.5 square miles.

Records available.- October 1942 to September 1949. (July 1941 to September 1942 in files 

or Bureau of Keclamation.)

Extremes.- Maximum discharge during year, 456 second-feet June 18 (gage height, 3.89 feet, 

present datum), from rating curve extended above 290 second-feet; minimum not determined, occurred during period of no gage-height record.

194S-49: Maximum discharge, 476 second-feet May 14, 1944 (gage height, 4.36 feet, 

present datum, from floodmarks), from rating curve extended above 150 second-feet; 

minimum not determined, occurred during period of no gage-height record.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversion or regulation above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

8.0 

7.6 

7.2 

8.0

8.5 

7.2 

7.6 

7.2 

6.8

6.4 

6.0 

5.6 

5.2 

4.8

4.8 

4.8 

4.8

5.2 

5.6

5.6 

4.8 

4.8 

4.0 

4.0

4.0 

4.4

5.2 

5.6 

6.0 

5.6

Nov.

5.2 

4.8 

5.2 

5.2 

5.6

b5.4 

5.2 

4.4 

4.8 

*5.0

4.8

5.0 

5.1 

5.3 

5.6

5.5 

5.1 

4.8 

5.2 

4.9

5.1 

5.2 

5.2 

5.2 

5.1

4.9 

4.7 

4.6 

5.0 

5.2

Dec.

(*) 

> 5.2

Jan.

(*)

> 4.6

Feb.

C) 

. 4.7

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

5.0 

4.9 

4.7 

4.8 

4.8

4.8 

4.4 

4.4 

4.6 

4.7

4.7 

4.6 

4.7 

4.8 

4.8

*5.0 

5.3 

5.8 

6.2

5.5

5.5 

5.3 

*5.3 

6.5 

7.2

7.2 

9.2 

8.9 

8.6 

8.6 

8.6

Apr.

8.6 

8.6 

8.6 

8.6 

8.6

8.6 

8.6 

8.6 

7.2 

7.0

7.0 

8.3 

8.9 

9.8 

10

11 

13 

14 

14 

16

16 

21 

30 

39 

52

56 

53 

56 

65 

65

Secondroot-days

185.3 

152.3 

161.2

11,165.8

142.6 

131.6 

179.4 

648.0 

2,284 

2,749 

1,402 

548.4 

229.8

8,813.6

May

60 

72 

80 

77 

69

63 

56 

54 

59 

74

96 

94 

83 

84 

89

87 

74 

72 

63 

63

54 

54 

56 

65 

73

83 

83 

84 

89 

91 

83

Maximum

10

5.6

219

9.2 

65 

96 

197 

68 

26 

14

197

June

79 

68 

68 

68 

64

68 

70 

76 

81 

81

91 

109 

121 

125 

131

150 

162 

197 

106 

82

72 

72 

75 

94 

83

75 

74 

72 

68 

67

July

66 

65 

68 

67 

62

60 

60

56 

51 

58

54 

51 

48 

44 

41

40 

38 

36 

35 

35

39 

37 

37 

35 

45

38 

31 

28 

26 

26 

25

Minimum

4.0 

4.4

-

4.4 

7.0 

54 

64 

25 

8.1 

5.5

-

Aug.

24 

24 

25 

24 

24

24 

24 

26 

26 

24

23 

21 

19 

18 

17

17 

17 

17 

16 

15

14 

14 

13 

12 

12

12 

11 

9.6 

9.1 

8.6 

8.1

Mean

5.98 

5.08 

5.2

30.5

4.6 

4.7 

5.79 

21.6 

73.7 

91.6 

45.2 

17.7 

7.66

24.1

Sept.

8.1 

9.1 

8.6 

7.6 

7.2

6.7 

6.7 

6.7 

7.2 

11

14 

12 

9.6 

9.6 

8.1

7.6 

6.7 

6.7 

6.7 

6.2

5.8 

5.5 

5.8 

6.2 

5.8

5.8 

5.8 

5.8 

7.6 

9.6

Runoff in 

acre -feet

368 

302 

320

22,140

283 

261 

356 

1,290 

4,530 

5,450 

2,780 

1,090 

456

17,490

Peak discharge (base, 125 see.-ft.).- June 18 (4:15 p.m.) 456 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 9 to Mar. 17 (stage-discharge relation affected by ice during 

most of period), July 5-20, Aug. 11-14, 19-24; discharge computed on basis of 5 discharge measurements, weather records, and records for nearby stations.
DOLORES RIVER BASIN 163

Beaver Creek near Norwood, Colo.

Location - Water-stage recorder, lat. 37°56', long. 108°10', in sec. 28, T. 43 N., R. 12 

W., 500 feet upstream from Goat Creek and 16 miles southeast of Norwood. Datum of gage 

is 8,008.81 feet above mean sea level (Bureau of Reclamation bench mark). Prior to 

Oct. 1, 1948, at datum 2.00 feet higher.

Drainage area.- 35.2 square miles.

Records available.- October 1942 to September 1949 (no winter records 1943, 1945). (October, November 1940, April 1941 to September 1942 in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 615 second-feet June 18 (gage height, 5.00 feet), 

from rating curve extended above 370 second-feet; minimum daily, 0.5 second-foot Aug. 31. 

1942-49: Maximum discharge, that of June 18, 1949; no flow Sept. 9-17, 1946.

Remarks.- Records good below 100 second-feet and fair above except those for periods of 

ice effect or no gage-height record, which are poor. One large diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.7 

3.0 

3.0 

2.8 

3.7

3.0 

2.4 

2.4 

2.5 

2.8

2.8 

3.1 

3.2 

2.2 

2.0

1.8

1.6 

1.5 

1.7 

1.6

1.5 

1.4 

1.4 

1.5 

1.4

1.4 

1.5 

2.6 

2.8 

2.8 

2.6

Nov.

2.5 

2.8 

2.8 

3.7 

3.6

3.7 

3.9 

*3.2 

3.2 

2.6

2.6 

3.4 

2.8 

2.2 

2.4

2.5 

2.2 

2.4 

3.6 

3.0

2.8 

3.0 

5.8 

b9.0 

b8.0

b7.5 

7.2 

5.8 

6.6 

6.9

Dec.

00

b 

W

6.5

Jan.

> 6

Feb.

6

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

> 7

Apr.

10 

10 

10 

10 

10

10 

10 

11 

8.4 

7.8

8.1 

»11 

14 

15 

17

19 

23 

23 

25 

29

31 

37 

48 

58 

73

90 

8f» 

77 

112 

118

Secondfoot-days

71.7 

121.7 

201.5

10,154.0

186 

168 

217 

1,011.3 

2,409 

2,529 

156.8 

36.9 

85.4

7,194.3

May

104 

130 

159 

134

118

82 

66 

55 

65 

102

138 

126 

100 

100 

104

81 

58 

57 

50 

51

42 

44 

52 

57 

60

58 

45 

39 

44 

54 

34

Maximum

3.7 

9.0

391

118 

159 

370 

11 

2.5 

5.4

370

June

24 

20 

17 

17 

16

15 

16 

20 

19 

19

18 

20 

36 

118 

41

37 

82 

370 

258 

190

182 

162 

205 

172 

120

100

82 

77 

64 

12

July

8.6 

9.6 

8.6 

7.8 

6.4

7.5

7.8 

6.1 

5.4 

6.8

5.6 

4.8 

4.3 

3.8 

3.8

3.5 

3.2 

3.0 

2.8 

2.8

5.9 

11 

3.5 

3.3 

5.9

4.6 

2.8 

2.2 

2.0 

1.8 

1.6

Minimum

1.4 

2.2

.4

7.8 

34 

12 

1.6 

.5 

.6

.5

Aug.

1.5 

1.5 

2.0 

2.0 

1.6

1.4 

1.4 

2.5 

2.4 

2.1

1.7 

1.3 

1.1 

.9 

.9

1.0 

1.0 

1.0

.8 

.8

.8 

.8 

.7 

.9 

.8

.8 

.8 

.7 

.6 

.6 

.5

Mean

2.31 

4.06 

6.5

27.7

6 

6 

7 

33.7 

77.7 

84.3 

5.06 

1.19 

2.85

19.7

Sept.

0.6 

1.0 

1.4 

1.7 

1.7

1.8 

1.7 

1.6 

1.0 

1.2

2.0 

1.7 

1.5 

1.4 

1.2

4.3

4.1 

3.8 

3.8 

3.8

3.8 

3.5 

4.1 

5.1 

4.6

4.1 

4.1 

4.3 

5.4 

5.1

Runoff in 

acre -feet

142 

241 

400

20,140

369 

333 

43O 

2,010 

4,780 

5,020 

311 

73 

169

14,280

Peak discharge (base. 200 sec.-ft.).- May 2 (10:30 p.m.) 210 sec.-ft.; June 18 (10:30 p.m.) 615 

sec.-ft.; June Z5 (11:30 p.m.) 268 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Mote.- No gage-height record Dec. 4 to Apr. 6 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of weather records and records for stations on nearby 

streams.
164 DOLORES RIVER BASIN

Horsefly Creek near Sams, Colo.

Location.- Water-stage recorder, lat. 38°12', long. 108°03', in NW£ sec. 35, T. 46 N., R. 

11 w., at boundary of Uncompahgre National Forest and 8 miles northwest of Sams.

Drainage area.- 23.3 square miles.

Records available.- May 1942 to September 1949 (no winter reco'rds 1942-45).

.Extremes.- Maximum discharge during year, 388 second-feet Apr. 23 (gage height, 4.26 feet); 

no now on many days.

1942-49: Maximum discharge, 1,030 second-feet May 12, 1944 (gage height, 5.43 feet), 

from rating curve extended above 500 second-feet; no flow at times each year.

Remarks.- Records good above 5 second-feet and fair below except those for period of ice 

errect or no gage-height record, which are poor. A few small diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

o 

.1 

.1 

.1 

.1

.3 

.3 *.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.5 

.5 

.3 

.1

Nov.

> O.I

Dec. Jan. Feb.

0.1

Month

Octo 

Hove 

Dace

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

h. ......................................

ter year 1948-49 ...............

Mar.

0.3

Apr.

0.4 

.6 

.7 

.7 

.8

.8 

2.0 

4.0 

3.8 

3.5

3.8 

4.7 

4.8 

5.0 

8.0

18 

24 

35 

77 

101

130 

*173 

221 

181 

195

167 

124 

122 

104 

92

Secondfoot-days

4.5 

3.0 

O

6,708.6

0 

2.8 

9.3 

1,807.6 

1,046 

173.7 

21.5 

0 

0

3,066.4

May

67 

69 

67 

55 

50

54 

46 

46 

36 

33

44 

45 

40 

35 

35

32 

28 

35 

28 

26

23 

21 

19 

17 

17

15 

14 

14 

13 

12 

10

Maximum

0.5 

0

400

0

221 

69 

12 

1.6 

0 

0

221

June

9.5 

8.8 

8.4 

8.8 

7.7

7.0 

9.5 

10 

12 

7.9

6.8 

6.8 

5.3 

4.2 

3.3

2.9 

2.2 

6.1 

9.5 

5.1

4.2 

3.3 

3.3 

5.5 

4.0

3.2 

2.7 

2'. 4 

2.2 

1.1

Minimum

July

0 

0

0

0

.4

10 

1.1 

0 

0 

0

0

0.7 

.7 

1.0 

.8 

1.1

l.O 

1.2 

1.6 

.8 

1.1

1.1 

.9 

.8 

.6 

.8

1.2 

1.1 

.4 

.2 

.3

.5 

.6 

.6 

.8 

.7

.5 

.2 

.1 

.1 

0 

0

Aug.

Mean

0.15 

.1 

0

18.3

0 

.1 

.3 

60.3 

33.7 

5.79 

.69 

0 

0

8.41

Sept.

Runoff In 

acre-feet

8.9 

6.0 

0

13,310

0 

5.6 

18 

3,590 

2,070 

345 

43 

0 

0

6,090

Peak discharge (base. 280 sec.-ft.).- Apr. 23 (5:30 p.m.) 388 sec.-ft.

» Winter discharge measurement made on this day.

Note.- Backwater from beaver dam Oct. 15 to Nov. 4; discharge computed on basis of weather records 

and records for stations on nearby streams.. Stage-discharge relation affected by Ice Nov. 5 to Apr. 

15 (no gage-height record Nov. 21 to Mar. 30; discharge computed on basis of weather records and records for nearby stations).
DOLORES RIVER BASIN 

Cottonwood Creek near Nuola, Colo.

165

Location.- Water-stage recorder, lat. 38°16', long. 108°22', In see. 1, T. 46 N., R. 14 

 W., 10 feet from State Highway 90, half a mile upstream from North Pork, and 10 miles 

east of Nuola.

Drainage area.- 43 square miles.

Records available.- May 1942 to September 1949 (no winter records 1942, 1943, 1945). 

(November 1S41 to April 1942 in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 146 second-feet Apr. 22 or 23 (gage height, 3.21 

reet, from recorded range in stage); no flow during most of winter.

1942-49: Maximum discharge, 321 second-feet Apr. 16, 1948, from rating curve extended above 200 second-feet; maximum gage height, 4.48 feet May 1, 1945; no flow at 

times.

Remarks.- Records fair except those for periods of no gage-height record, which-are poor. 

A few small diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

0.1 

.1 

.1 

.1 

.1

.1 

*.l 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.5 

.3 

.1 

.1

Mov.

0.1 

.1 

.1 

.1 

*0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

( )

Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

her. ....................................

lendar year 1948 

ai*y

at ....... . .......... ..........

ter year 1948-49 .......................

Mar.

O 

0 

0

*o

0

0 

0 

0 

0

o

0 

0 

0 

0 

0

 1.1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

1.1

.8

Apr.

1.1 

1.4 

1.3 

.9 

.8

4.0 

7.3 

9.6 

8.8 

6.8

7.6 

16 

7.6 

8.8 

13

26 

51 

57 

54 

56

f77 

f!06 

fll9 

f!07 ri04

f97 

65 

65 

63 

52

Secondfoot -days

3.6 

.4

0

3,068.7

0 

0 

3.0 

1,194.0 

815 

272.7 

28.5 

16.9 

6.0

2,340.3

May

44 

48 

50 

41

33

28 

24 

21 

20 

22

26 

27 

24 

27

31

30 

27 

31 

27 

25

22 

19 

19 

18 

17

19 

19 

22 

20 

18 

16

Maximum

0.5

.1 

0

153

0 

0 

1.1 

119 

50 

16 

2.2 

6.8 

.2

119

June

16 

14 

13 

13 

11

11 

10 

11 

11 

11

12 

12 

10 

8.1 

7.5

5.0 

4.0 

13 

16 

10

7.8 

6.0 

10 

8.4 

6.0

4.6 

3.8 

3.3 

2.5 

1.7

July

1.2 

1.1 

2.2 

1.1 

1.3

.9 

1.0 

l.O 

1.0 

1.2

1.1 

1.0 

.9 

1.0 

.9

.9 

.9 

.8 

.7 

.7

.8 

.7 

1.8 

.8 

.7

.6 

.5 

.5 

.4 

.4 

.4

Minimum

0.1 

0 

0

0

0 

0 

0 

.8 

16 

1.7 

.4 

.2 

.2

0

Aug.

0.4 

.4 

.4 

.3 

.3

.3 

.6 

6.S 

1.6 

.3

.3

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.2 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2 

.2

Mean

0.12 

.01 

0

8.38

0 

0 

.10 

39.8 

26.3 

9.09 

.92 

.55 

.20

6.41

Sept.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Runoff In 

acre-feet

7.5 

.8 

0

6,080

0 

0 

6.0 

2,3?0 

1,620 

541 

57 

34 

12

4,650

Peafc discharge (base, 40 sec.-ft.).- Apr. 12 (8 p.m.) 46 sec.-ft.; Apr. 22 or 23 (time unknown) 146 

sec.-ft.j June 23 J3:30 p.m.J 57 sec.-ft.; Aug. 8 (7:30 p.m.) 1O8 sec.-ft.

* Winter discharge measurement or observation of no flow made on this day.

f Computed on basis of partly estimated gage-height record.

Mate.- Ho gage-height record Oct. 1 to NOT. 4, Hov. 12 to Mar. 15; discharge computed on basis of 

3 discharge measurements or observations of no flow, recorded range-In stage, weather records, and 

records for stations on nearby streams.
166 DOLORES RIVER BASIN

Naturita Creek near Norwood, Colo.

Location.- Water-stage recorder, lat. 37°58', long. 108°18', in SE-j- sec. 20, T. 43 N. , R. 

13 W., 500 feet downstream from East Fork and 11 miles south of Norwood. Datum of gage 

is 7,601.12 feet above mean sea level (Bureau of Reclamation bench mark).

Drainage area.- 27.7 square miles.

Records available.- October 1941 to September 1949 (no winter records 1941-45). (October 

to JJecmeber 1940 and May to September 1941 in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 547 second-feet Aug. 8 (gage height, 3.79 feet), 

from rating curve extended above 200 second-feet on basis of slope-area determination at 

gage height 4.80 feet; minimum not determined, occurred during period of no gage-height 

record.

1941-49: Maximum discharge, 943 second-feet July 24, 1945 (gage height, 5.19 feet), 

from rating curve extended above 200 second-feet on basis of slope-area determination 

at gage height 4.80 feet; no flow at times in September 1945, September 1948.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Small diversions above station for irrigation.

Rating tables, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to 

Mar. 31

(Shifting-control method used Oct. 28 to'"Nov. 22)

Apr. 1 to Sept. 3O

0.2 0.4 0.2 0.4 0.7 7.O 1.2

.3 1.0 .3 1.1 .8 10 1.4

.4 1.5 .4 2.1 1.0 18 1.5

.6 5.0 1.1 23

Discharge, in second-feet, water year October 1946 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.4 

.3 

.3 

.4

.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5

.5

.5 

.5 

.5 

.7 

.7

.6 

.5 

.6 

.6 

.6

.5 

.6 

1.4 

1.2 

1.0 

.B

Nov.

0.7 

.6 

.6 

.9 

.7

.8 

.7 

*.5 

.4 

.5

.6 

.6 

.6 

.6 

.6

.6 

.6 

.7 

.5 

.6

.7 

.7 

.6 

.5 

.5

.5 

.6 

.6 

.6 

.6

Dec.

0.5

Jan.

0.3

Feb.

> 0.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ember. ..................................

ter year 1946-49 .......................

Mar.

1.5

Apr.

1.7 

1.9 

4.5 

10 

14

20 

30 

45 

45 

32

35 

*56 

45 

40 

34

38 

38 

38 

36 

31

29 

25 

25 

27 

28

28 

25 

24 

29 

25

Secondfoot-days

18.2 

18.3 

15.5

4,560.9

9.3 

14.0 

46.5 

660.1 

596.7 

313.5 

145.1 

80.9 

15.4

2,135.5

May

20 

22 

25 

27 

26

27 

24 

20 

16 

20

32 

31 

22 

22 

21

24 

24 

27 

19 

17

14 

8.8 

7.9 

7.6 

7.6

8.6 

15 

24 

16 

12 

11

Maximum

1.4

.9

130

56 

32 

45 

23 

24 

1.7

56

June

9.4 

8.8 

6.6 

6.4 

5.0

5.0 

9.1 

15 

9.4 

7.3

6.6 

11 

7.9

5.8 

4.8

4.7 

4.8 

17 

45 

30

18

9.1 

13 

14 

9.7

7.9 

7.6 

6.0 

4.4 

4.0

July

3.8 

4.0 

4.0 

4.0 

4.2

4.4 

5. 2 

5.6 

3.5 

4.2

4.1 

3.5 

3.2 

3.1 

2.9

2.4 

2.2 

2.2 

1.9 

1.9

2.1 

5.0 

6.7 

23 

19

5.6 

4.0 

2.8 

2.4 

2.1 

1.9

Minimum

0.3 

.4

0

1.7 

7.6 

4.0 

1.9 

.3 

.2

-

Aug.

1.8 

1.8 

2.2 

2.0 

1.8

1.6 

2.0 

24 

13 

4.0

2.9 

2.5 

2.4 

1.9 

1.7

1.7 

1.8 

1.6 

1.3 

1.1

1.0 

.9 

1.0 

1.2 

.9

.8 

.6 

.4 

.4 

.3 

.3

Mean

0.59 

.61 

.5

12.5

.3 

.5 

1.5 

26.7 

19.3 

10.4 

4.68 

2.61 

.51

5.65

Sept.

0.3

.6 

.5 

.6.4"

.2 

.2 

.2 

.3 

.6

1.0

1.0 

.6 

1.0 

.6

.4

.3 

.3 

.2 

.2

.2 

.2 

.2 

.3 

.3

.4 

.6 

.6 

1.7 

1.0

Runoff In 

acre-feet

36 

36 

31

9,040

16 

26 

92 

1,710 

1,190 

622 

266 

160 

31

4,240

Peak discharge (base, 210 sec.-ft.).- June 12 (4:30 p.m.) 211 sec.-ft.; July 24 (1:30 p.m.) 323 

sec.-ft.; Aug. 8 (3:30 p.m.) 547 sec.-ft. 

 * Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 23 to Dec. 4. Ho gage-height record Dec. 5 to 

Apr. 11 (stage-discharge relation affected by ice during most of period)j discharge computed on basis 

of weather records and records for stations on nearby streans.
DOLORES RIVER BASIN 167

Tabeguache Creek near Nucla, Colo.

Location.- Water-stage recorder and concrete control, lat. 38°22', long. 108°20', in SEv 

sec. 31, T. 48 N., R. 13 W., 1 mile downstream from head gate of Glencoe ditch and 

13 miles northeast of Nucla.

Drainage area.- 20.7 square miles.

Records available.- April 1946 to September 1949.

Extremes.- Maximum discharge during year, 303 second-feet May 15 (gage height, 3.83 feet), 

from rating curve extended above 170 second-feet; no flow at times.

1946-49: Maximum discharge, that of May 15. 1949; no flow at times during most 

years.

Remarks.- Records good above 10 second-feet and fair below except those for periods of 

no gage-height record, which are poor. Diversion above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3

.2

.2 

.2

.2 

.2

'.2 

.2

.2 

.2

.3

.2

.2 

.2 

.2 

.2

.2

.2

.2 

.3

.6 

.6 

.6

Nov.

0.6 

.6 

.6 

.6 

.8

.6 

.5 

.5 

.4 

.4

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.4

.5

.5 

.5 

.4 

.4 

.4

.4 

.4 

.5 

.5 

.5

Dec.

0.5

Jan.

' 0.5

Feb.

» 0.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ................

Mar.

0.6

Apr.

0.8 

1.1 

1.0 

.7

.6

1.3 

5.0 

6.8 

6.2 

5.4

6.0 

8.5 

7.0 

8.0 

9.5

13 

20 

40 

43 

41

42 

55

62 

80 

113

116 

88 

104

127 

122

Secondfoot-days

7.7 

15.0 

15.5

6,599.2

15.5 

11.2 

18.6 

1,133.9 

3,166 

1,129.7 

68.6 

1.2 

2.1

5,585.0

May

106 

119 

137 

134 

108

83 

72 

64 

66 

75

93 

108 

101 

112 

126

124 

116 

113 

101 

104

93

86 

95 

106 

113

118 

112 

108 

104 

94 

75

Maximum

0.6 

.8

208

127 

137 

68 

5.4 

.4 

.3

137

June

68 

61 

56 

56 

51

48 

50 

49 

50 

48

48 

47 

42 

36

30

28 

32 

51 

50 

38

32

25 

28 

31

20

16 

14 

11 

7.0 

6.7

July

5.4 

5.2 

5.0 

4.2 

4.2

4.0 

3.7 

3.0 

2.9 

2.9

2.9 

2.4 

2.6 

2.6 

2.4

2.7 

3.2

2.1 

1.0

.6

.6

1.1 

1.2 

.6

.6

.5 

.4 

.3 

.2 

.1 

0

Minimum

0.2 

.4

0

.6 

64 

6.7 

0 

0 

0

0

Aug.

0

.1 

.1 

.1 

0

0 

0

.1

.4

.3

.1 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0

0 

0 

0

Mean

0.25 

.50 

.5

18.0

.5 

.4 

.6 

37.8 

102 

37.'7 

2.21 

'.04 

.07

15.3

Sept.

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

.2 

.2 

.2 

.1

.1 

.1 

.1 

.1 

0

0 

0 

0 

0

.1

.1 

.1 

.1

.3 

.3

Runoff in 

acre-feet

15 

30 

31

13,080

31 

22 

37 

2,250 

6,280 

2,ig40

2.4 

4.2

11,080

Peak discharge (base. 110 sec.-ft.).- Apr. 26 (7 p.m.} 190 sec.-ft.; May 3 (6:30 p.m.) 183 seo.- 

ft.; May 15j(6 p.m.; 303 sec.-ft. j May '28 (2:30 a.m.} 137 sec.-ft.

Note.- Tfo gage-height record Nov. 9 to Apr. 19, July 21-23, July 26 to Aug. 1, Aug. 20 to Sept. 9; 

discharge computed on basis of weather records and records for stations on nearby streams.

939921 O - 51 - 12
168 DOLORES RIVER BASIN

Taylor Creek near Gateway, Colo.

Location.- Water-stage recorder, lat. 38°31 I , long. 109°07', in sec. 24, T. 26 S., R. 25 

E., in Utah, a quarter of a mile downstream from South Taylor Creek and 12 miles 

southwest of Gateway. Prior to Aug. 31, 1949, water-stage recorder at site 770 feet 

downstream at datum 6.00 feet lower.

Drainage area.- 12 square miles.

Records available.- October.1944 to September 1949 (no winter records 1944-46).

Extremes.- Maximum discharge during year, 403 second-feet Apr. 25 (gage height, 3.02 feet, 

sice and datum then in use), from rating curve extended above 210 second-feet; no flow 

Sept. 29.

1944-49: Maximum discharge, 555 second-feet Apr. 18, 1948; no flow at times. 

June to August 1946, Sept. 29, 1949.

Remarks.- Records fair. No diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.4 

.4 

.4

Nov.

0.4 

.4 

.4 *.S 

.4

.4 

.4

.3 

.3 

.3

.4

.4 

.4 

.4 

.4

.4 

.3 

.4

.3 

.3

.4 

.4 

.3

.3 

.3

.3 

.3 

.4 

.5 

.5

Dec.

0.4 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.4

.4 

.4

.3 

.3 

.3

.3 

.3 

b.3 

b.3 

b.3

.3 

.3 

.4 

.3 

.3 

.3

Jan.

0.3 

.3 

.4 

.3 

.3

.3 

.3 

.3

.3 

.3

.3 

.3 

.3 

.3 

.3

.3

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Feb.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

0.3 

.3 

.3

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3

.3 

.4 

.4

.4 

.5

.4 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Apr.

0.4 

.4 

.4 

.4 

.5

.9 

bl.2 

1.0 

b2.5 

b9.0

b!2 

b8.8 

b6.0 

b7.8 

blO

b!2 

b!5 

32 

37 

46

68 

86 

73 

131 

158

*140 

80 

72 

80 

61

Seeondfoot-days

9.7 

11.2 

9.9

2,313.1

9.4 

8.4 

11.0 

1,152.3 

1,341 

502.6 

91.2 

15.8 

5.6

3,168.1

May

48 

62 

71 

55 

54

41 

40 

35 

38 

48

54 

53 

49 

46 

49

48 

45 

45 

40 

40

36 

34 

34 

55 

36

36 

36 

38 

35 

31 

27

Maximum

0.4 

.5 

.4

242

.4

.3 

.5 

158 

71 

43 

7.6 

1.1 

.3

158

June

23 

20 

18 

20 

16

14 

15 

16 

14 

15

19 

19 

18 

16 

14

14 

17 

43 

31 

23

17 

14 

16 

16 

12

10 

9.8 

9.4 

7.4 

6.0

July

5.6 

6.0 

5.6 

6.0 

4.9

6.0 

7.0 

5.6 

3.1 

3.1

6.0 

4.2 

2.7 

1.4 

1.3

1.3 

1.1 

.9 

.9 

.9

.8 

.7 

.9 

7.6 

3.1

1.3 

.9 

.7 

.6 

.5 

.5

Aug.

0

1

a

a 

a 

a

a 

a 

a 

a 

a

a 

a 

a 

a 

a

a

a 

a 

a 

a

Minimum Mean

0.3 0.31 

.3 .37 

.3 .32

6.32

.3 .30 

.3 .30 

.3 .35 

.4 38.4 

27 43.3 

6.0 16.8 

.5 2.94 

.3 .51 

.1 .19

.1 8.68

Peak discharge (base, 40 sec. -ft.}.- Apr. 25 (3 p.m.) 4O3 see. -ft.; June 18 (6 a.m.) 86

.5 

.5 

.6 

.5 

.5

.5 

.8 

.1 

.9 

.7

.6 

.6 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.4 

.4 

.5 

.4

.3 

.3 

.3 

.3 

.3 

.3

Sept.

0.2

.1 .1 

.1 .1

.1 .1 

.1 .1 .1

.1 .1 .1 .1

.2

.2 

.2

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.1 

.3

Runoff in 

acre-feet

19 

22 

20

4,590

19 

17 

22 

2,290 

2,660 

997 

181 

31 

11

6,290

sec. -ft.

» winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for stations 

on nearby streams.

b Stage-discharge relation affected by Ice.
DOLORES RIVER BASIN 

Roc Creek near Uranium, Colo.

Location (revised).- Water-stage recorder, lat. 38°26'05", long. 108°55'20", 

sec. 12, T. 4H «., R. 19 W., at La Sal National Forest boundary, l£ miles 

Uranium.

169

in 

west of

Drainage area.- 69.5 square miles.

Records available.- August 1944 to September 1949 (no winter records in 1945).

Extremes.- Maximum discharge during year, 488 second-feet Apr. 24 (gage height, 3.85 

reet), from rating curve extended above 130 second-feet; no flow Dec. 3-7, 13-22.

1944-49: Maximum discharge, 508 second-feet Apr. 18, 1948 (gage height, 3.93 feet), 

from rating curve extended above 130 second-feet; no flow July 7, 1946, Dec. 3-7, 13- 

22, 1948.

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

Most of flow of Geyser and Deep Creeks in Roc Creek Basin is diverted to Buckeye Reservoir in West Paradox Creek Basin; release from Buckeye Reservoir (see p.1701 is 

approximately equal to amount diverted from Roc Creek Basin. There are two small diversions between the site of present gage and the site a quarter of a mile downstream 

used prior to July 26, 1946.

Discharge, In second-feet, Mater year October 1948 to September 1949

Day

1

a

3

4 

5

6 

7 

8 

9 

10

11 

IE 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

E6 

27 

28 

29 

SO 

31

Oct.

0.9 

.9 

.9 

.8 

.9

.9 

1.0 

1.0 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9

.8 

.8 

1.0 

1.0

1.0 

1.0 

.9 

.9 

.8

1.0 

1.0 

3.4 

1.5 

1.6 

1.6

Nov.

1.3 

1.3 

1.2 

1.6 

.8

.4 

.7 

.3 

.3 

.2

.6 

.7 

.6 

.8 

.6

.6 

.6 

.3 

.4 

.5

.8 

.8 

.7 

.8 

.8

.7 

.4 

.3 

.2 

.1

Dec.

0.1 

.1 

0 

0 

0

0 

0 

.5 

.4 

.2

.1 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0

.1

.2

.1

.1 

.1 

.2

.1 

.1 

.1

Jan.

3.0

Feb.

5.0

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Peak discharge (base. 100 sec. -ft .J.- Apr.

ft.; Hay 3 (7:30 p.m.) 213 sec. -ft. ; "May 11 

Note.- No gage-height record Dec. 14 to Ma 

merits made 3 miles downstream, weather reoor

Mar.

6.5 

6.5 

6.3 

6.1 

6.3

6.1 

6.8 

6.3 

5.7 

5.9

5.9 

5.9 

5.7 

5.9 

6.3

7.5 

8.0 

8.0 

8.5 

8.8

7.8 

7.5 

7.2 

7.0 

6.5

6.1 

6.1 

6.8 

6.5 

6.3 

6.1

Apr.

6.5 

6.5 

6.3 

6.3 

7.5

9.6 

13 

18 

18 

17

17 

26 

33 

33 

35

41 

49 

60 

69 

92

127 

164 

139 

215 

234

224 

177 

140 

146 

112

Secondroot-days

32.8 

19.4 

2.6

3,671.2

~ 93.0 

140.0 

206.9 

2,241.7 

2,436 

1,424 

420.2 

109.0 

48.9

7,174.5

May

94 

106 

119 

100 

90

75 

76 

64 

69 

71

84 

86 

78 

77 

82

86 

83 

80 

67 

65

58 

53 

52 

55 

71

78 

76 

90 

95 

89 

67

Maximum

3.4 

1.6 

.5

204

8.8 

234 

119 

165 

23 

8.9 

2.5

234

June

58 

42 

36 

40 

33

32 

32 

33 

30 

32

49 

54 

54 

51 

44

56 

79 

165 

124 

82

64 

47 

34 

33 

30

25 

20 

17 

15

13

July

12 

10 

11 

23 

22

21 

20 

18 

18 

18

18 

16 

16 

14 

13

12 

12

11 

11 

11

10 

9.6 

11 

16

14

11 

9.1 

8.5 

8.2 

7.8 

8.0

Aug.

7.8 

8.5 

8.9 

8.0 

7.6

7.6 

5.6 

6.7 

4.2 

3.8

3.0 

2.7 

2.3 

2.2 

2.1

2.0 

2.1 

2.O 

1.8 

1.7

1.6 

1.5 

1.6 

2.0 

1.8

1.8 

1.8 

1.7 

1.6 

1.5 

1.5

Minimum Mean

O.8 1.06 

.1 .65 

0 .08

0 10.0

5.0 

5.O 

5.7 6.67 

6.3 74.7 

52 78.6 

13 47.5 

7.8 13.6 

1.5 3.52 

1.3 1.63

0 19.7

Sept.

1.5 

1.8 

1.6 

1.5 

1.4

1.3 

1.3 

1.5 

1.4 

1.5

1.7 

1.6 

1.7 

2.5 

2.O

1.7 

1.6 

1.6 

1.5 

1.5

1.5 

1.4

1.4 

1.4 

1.5

1.6 

1.6 

1.7 

2.4 

2.2

Runoff In 

acre-feet

65 

38 

5.2

7,290

184 

278 

410 

4,450 

4,830 

2,820 

833 

216 

97

14,230

16 (5:30 p.m.) 131 sec. -ft.; Apr. 24 (7 p.m.) 488 sec.- 

(11 p.m.) 1E2 sec. -ft.; June 18 (8 a.m.) 325 sec. -ft. 

r. 2; discharge computed- on basis of 2 discharge measure 

ds, and records for stations on nearby streams.
170 DOLORES RIVER BASIN

Deep Creek near Paradox, Colo.

Location.- Water-stage recorder, lat. 38°30', long. 109°09', in NE^ sec. 3, T. 27 S., 

R~!Jib E. , in Utah, a quarter of a mile downstream from diversion to Buckeye Reservoir 

and 13 miles northwest of Paradox.

Records available.- August 1944 to September 1949 (no winter records in 1945).

Extremes.- Maximum discharge during year, 29 second-feet June 18 (gage height, 1.52 feet), 

rrom rating curve extended above 15 second-feet; no flow Oct. 15-23, 27, Nov. 1, 4-6, 

and probably at other times during winter.

1944-49: Maximum discharge recorded, that of June 18, 1949; no flow Oct. 15-23, 27, 

Nov. 1, 4-6, 1948, and probably at other times during winter months.

Correction.- The maximum discharge for the water year 1947 has been corrected to 9.1 

second-l'eet June 11 (gage height, 1.18 feet) superseding figure published in WaterSupply Paper 1089.

Remarks.- Records poor. Most of flow diverted a quarter of a mile above station to Buckeye Heservoir in West Paradox Creek. Basin.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1

.1 

.1 

.1 

0

0 

0 

0 

0 

0

0

0 

0

.1

.1

.1

0

.1 .1 .1 .1

Nov.

0 

.1 

.1 

0 

0

0 

0.1

Dec.

' 0.1

Jan.

0.1

Feb.

0.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948

h.......................................

ter year 1948-49 ...............

Note.- No gage-height record Nov. 7 to May

Mar.

0.3

Apr.

 6.0

Secondfoot-days

2.1 

2.6 

3.1

738.1

3.1 

5.6 

9.3 

180.8 

385 

550 

342.7 

44.3 

7.4

1,535.2

May

12

14 

14 

15 

14 

14 

14

Maximum

0.1

-

25 

20 

6.6 

.3

25

25; discharge computed

June

14 

14 

15 

14 

14

14 

14 

13 

13 

15

13

17 

21 

22 

22

22 

22 

25 

24 

24

22 

20 

20 

20 

20

21 

20 

18 

18 

19

July

20 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

13 

14 

12 

11

11 

9.9 

9.9 

9.6 

9.3

9.6 

8.6 

8.8 

9.1 

8.1

7.0 

6.4 

6.2 

6.4 

6.4 

6.4

Minimum

0

0

o

13 

6.2 

.2

.2

0

on basis o

Aug.

6.2 

6.2 

6.4 

6.2 

6.6

4.9 

1.1 

.7 

.5 

.4

.4 

.3 

.3 

.3 

.3

.3

.3 

.3 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Mean

0.07 

.09 

.1

2.02

.1 

.2 

.3 

6.0 

12.4 

18.3 

11.1 

1.43 

.25

3.78

f recorded

Sept.

0.3 

.3

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.3

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Runoff In 

acre-feet

4.2 

5.2 

6.1

1,460

6.1 

11 

18 

357 

764 

1,090 

680 

88 

15

3.040

range in

stage, weather records, and records for stations on nearby streams.
DOLORES RIVER BASIN 171

Geyser Creek near Paradox, Colo.

Location Water-stage recorder, lat. 38°28', long. 109°09', in NE^ sec. 15, T. 27 S., 

Fmnr~E. , in Utah, at spillway of Geyser Creek Reservoir, 11 miles northwest of 

Paradox.

Records available.- August 1944 to September 1949.

Extremes.- Maximum discharge during year, 134 second-feet June 18 (gage height, 2.88 

reet); no flow during most of year.

1944-49: Maximum discharge, that of June 18, 1949; no flow during most of every 

year.

Remarks.- Records good. Most of flow diverted just above station to Buckeye Reservoir in 

West Paradox Creek Basin.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hav

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Mar. Apr.

O

0 

O 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.8 

38

26 

 1.4

0 

0 

0

Secondfoot-days

0 

0 

0

32.5

0 

0 

0 

66.2 

212.4 

416.6 

0 

0 

0

695.2

May

0 

1.1 

20 

15 

2.3

0 

0 

O 

0 

0

0 

0 

0 

0 

.2

4.9 

1.1 

0 

0 

0

0 

0 

0 

5.8

16

21

18 

32 

34

27 

14

Maximum

O

o 

o

14

0

o

0 

38 

34 

93 

O 

0 

O

93

June

5.8 

1.0

0 

0 

0

0 

0 

0 

0 

.8

14 

14 

14 

14 

8.3

26

41 

93 

89 

51

28

6.1 

4.4

6.1 

.1

0 

0 

"0 0 

0

Minimum

July

0 

0 

0

0

o

0

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.09

0 

0 

0 

2.21 

6.85 

13.9 

O 

0 

0

1.9O

Sept.

Runoff In 

acre-feet

o 

0 

o

64

0 

0 

0 

131 

421 

826 

O 

O 

0

1,380
172 GREEN RIVER BASIN

Green River at Warren Bridge, near Daniel, Wyo.

Location.- Water-stage recorder, lat. 43°00', long. 110°07', in sec. 8, T. 35 N., R. Ill 

w., 1UO feet upstream from bridge on U. S. Highways 187 and 189, 12 miles north of 

Daniel. Datum of gage is 7,468.09 feet above mean sea level, datum of 1929.

Drainage area.- 468 square miles.

Records available.- October 1931 to September 1949.

Average discharge.- 15 years (1933-36, 1937-49), 490 secohd-feet.

Extremes.- Maximum discharge during year, 2,770 second-feet June 13 (gage height, 4.69 

reet); minimum daily, 72 second-feet Feb. 15.

1931-49: Maximum discharge, 3,510 second-feet June 26, 1932 (gage height, 5.08 

feet); minimum recorded, 31 second-feet Nov. 26, 1933 (gage height, 0.70 foot), from 

rating curve extended below 120 second-feet.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. Diversions above station for irrigation. Natural regulation by 

lakes in Green River Basin.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

193 

190 

184 

184 

196

205 

193 

190 

184 

181

175 

 175 

170 

170 

193

214 

208 

193 

190 

187

184 

184 

181 

178 

175

172 

170 

170 

165 

168 

162

Nov.

160 

165 

172 

168 

120

b!60 

b!50 

108 

100 

96

110 

110 

100 

110 

120

120 

120 

120 

120 

110

100 

110 

110 

120 

120

 122 

b!20 

bllo 

b!05 

110

Dec.

110 

110 

110 

110 

110

100 

96 

98 

100 

100

100 

110 

110 

110 

100

 100 

100 

100 

100 

100

100 

100 

100 

98 

96

100 

100 

100 

100 

100 

100

Jan.

98 

100 

100 

100 

100

100 

100 

110 

100 

100

98 

 98 

100 

100 

100

98 

96 

92 

92 

92

92 

92 

92 

90 

88

88 

88 

90 

90 

92 

 92

Feb.

92 

92 

90 

88 

88

88 

88 

88 

88 

88

88 

88 

82 

78 

72

74 

 76 

76 

76 

76

80 

80 

80 

80 

80

78 

78 

80

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948

ter year 1948-49 .......................

Mar.

82

80 

78 

80 

82

84 

88 

 90 

94 

96

100 

100 

110 

110 

110

110 

120 

120 

120 

120

120 

120 

120 

120 

120

120 

110 

100 

96 

92 

92

Apr.

Secondfoot -days

5,684 

3,666 

3,168

167,239

2,968 

2,312 

3,184 

5,678 

35,450 

55,340 

37,380 

15,412 

8,196

178,438

90 

90 

90 

90 

92

96 

100 

110 

130 

140

150 

200 

210 

210 

200

200 

200 

200 

200 

210

220 

230 

240 

240 

250

270 

290 

310 

310 

310

May

300 

300 

300 

310 

330

330 

320 

320 

330 

470

700 

1,010 

1,410 

1,460 

1,560

1,720 

1,950 

2,040 

2,090 

1,850

1,600 

1,370 

1,270 

1,200 

1,120

1,180 

1,390 

1,560 

1,840 

1,940 

1,880

Maximum

214 

172 

110

2,880

110 

92 

120 

310 

2,090 

2,710 

1,770 

678 

360

2,710

June

1,780 

1,580 

1,350 

1,160 

1,080'

1,110 

1,140 

1,490 

1,770 

1,990

2,210 

2,440 

2,670 

2,710 

2,430

2,160 

2,040 

1,940 

2,210 

2,420

2,370 

2,130 

1,920 

1,790 

1,560

1,550 

1,730 

1,700 

1,520 

1,390

Minimum

July

1,300 

1,300 

1,420 

1,590 

1,680

1,730 

1,770 

1,760 

1,660 

1,570

1,460 

1,400 

1,380 

1,340 

1,330

1,310 

1,310 

1,340 

1,240 

1,060

966 

886 

776 

741 

755

762 

748 

727 

699 

685 

685

162 

96 

96

88

88 

72 

78 

90 

300 

1,080 

685 

332 

199

72

Aug.

678 

671 

671 

664 

650

636 

629 

608 

629 

650

650 

622 

574 

522 

473

437 

413 

385 

375 

360

345 

332 

332 

370 

425

455 

425 

385 

360 

350 

336

Mean

183 

122 

102

457

95.7 

82.6 

103 

189 

1,144 

1,845 

1,206 

497 

273

489

peak discharge (base, 1,800 sec. -ft.).- May 19 (2 a.m.) 2,180 sec. -ft.; May 30 (3 p.m.)

Sept.

327 

314 

314 

340 

350

360 

345 

332 

314 

300

309 

322 

322 

304 

290

276 

259 

250 

244 

232

226 

217 

211 

205 

205

205 

202 

199 

205 

217

Runoff In 

acre-feet

11,270 

7,270 

6,280

331,700

5,890 

4,590 

6,320 

11,260 

70,310 

109,800 

74,140 

30,570 

16,260

354,000

1,960 sec.-

ft.; June 13 (12 p.m.) 2,770 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- Mo gage-height record Nov. 9-25, Nov. 30 to May 12 (stage-discharge relation affected by Ice 

during most of periods); discharge computed on basis of 6 discharge measurements, weather records, 

and records for nearby stations.
GREEN RIVER BASIN 

Green River near Fontenelle, Wyo.

173

Location.- Water-stage recorder, lat. 42°07 I , long. 110°11', in SW£ sec. 20, T. 25 N., R. 

 lia W., 200 feet from U. S. Highway 189, lj miles downstream from Muddy Creek, and 

4 miles northwest of Fontenelle.

Drainage area.- 3,970 square miles.

Records available.- October 1946 to September 1949.

Extremes.- Maximum discharge during year, 8,180 second-feet June 21 (gage height, 6.66 

reet), from rating curve extended above 6,000 second-feet; minimum daily, 315 secondfeet Nov. 21.

1946-49: Maximum discharge, 10,500 second-feet June 22, 1947 (gage height, 7.46 

feet), from rating curve extended above 6,000 second-feet; minimum daily, 290 secondfeet Feb. 13-17, 1948.

Remarks.- Records excellent except those for period of ice effect, which are fair. Diversions above station for irrigation.

Rating tables, water year 1948-49, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Dec. 31 Jan. 1 to Sept. 30

2.6 380 2.9 460 5.0 3,710 

2.8 475 3.1 630 5.6 5,120 

2.9 535 3.6 1,250 6.6 8,000 

4.2 2,150

Discharge, In second-feet, Mater year October 194B to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

475 

481 

475 

475 

481

493 

505 

511 

511 

505

499 

499 

493 

493 

499

529 

587 

587 

5BO 

*568

54B 

535 

535 

535 

535

535 

535 

529 

535 

535 

523

Nov.

523 

523 

523 

523 

470

445 

517 

455 

450 

360

390 

380 

350 

350 

380

370 

370 

370 

360 

350

315 

325 

330 

340 

340

340 

340 

 330 

330 

340

Dec.

360 

375 

385 

385 

375

360 

360 

360 

360 

 375

380 

385 

390 

395 

390

390 

385 

385 

390 

380

375 

370 

360 

345 

335

340 

355 

360 

360 

370 

380

Jan.

380 

380 

380 

380 

380

390 

 400 

405 

410 

400

395 

400 

405 

410 

400

390 

370 

360 

365 

360

 360 

355 

350 

345 

340

340 

340 

350 

360 

355 

350

Feb.

355 

350 

345 

340 

345

350 

355 

355 

350 

360

365 

370 

350 

350 

340

340 

345 

 350 

350 

355

360 

370 

365 

360 

360

360 

370 

375

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

lendar year 194B 

ary

uary . *

h. ......................................

ter year 1948-49 .......................

Mar.

380 

385 

390 

400 

405

410 

*415 

420 

450 

450

450 

460 

495 

520 

550

580 

620 

680 

750 

880

1,050 

1,030 

1,040 

1,060 

1,050

1,040 

970 

920 

860 

780 

790

Apr.

1 

1,

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1, 

1 

1

1 

1 

1 

1 

2

2 

2 

2 

 2 

2

Secondfoot-days

16,126 

11,789 

11,515

478,671

11,605 

9,940 

20,680 

46,420 

101,630 

168,940 

83,220 

31,912 

18,712

532,489

*eak Al80har8e _0»f«j h500 sec. -ft.}.- May 9 (11 p.m.

800 

815 

805 

840 

940

060 

220 

350 

400 

490

560 

720 

760 

740 

580

450 

400 

460 

530 

560

640 

600 

660 

930 

120

260 

240 

190 

150 

150

May

1,990 

1,760 

1,640 

1,710 

1,910

1,930 

1,680 

1,500 

1,460 

1,460

1,620 

1,760 

1,960 

2,400 

2,850

3,190 

4,440 

5,820 

6,720 

6,740

6,240 

5,120 

4,240 

3,710 

3,330

3,090 

3,150 

3,710 

4,240 

4,920 

5,340

Maximum

587 

523 

395

9,160

410 

375 

1,060 

2,260 

6,740 

8,000 

4,080 

1,360 

696

8,000

June

5,850 

5,960 

5,260 

4,260 

3,890

3,800 

3,860 

4,000 

4,420 

5,120

5,820 

6,830 

7,400 

7,700 

7,640

7,010 

6,240 

5,820 

6,740 

7,640

8,000 

7,100 

6,180 

5,540 

4,900

4,350 

4,440 

4,520 

4,500 

4,150

July

3,710 

3,370 

3,190 

3,450 

3,840

4,080 

3,950 

3,780 

3,690 

3,640

3,390 

3,230 

3,130 

3,030

2,830

2,560 

2,440 

2,330 

2,330 

2,280

2,200 

2,070 

1,940 

1,820 

1,720

1,660 

1,590 

1,560 

1,530 

1,490 

1,390

Aug.

1,360 

1,360 

1,350 

1,320 

1,290

1,310 

1,290 

1,260 

1,240 

1,250

1,260 

1,240 

1,210 

1,160 

1,090

1,030 

964 

912 

899 

836

800 

764 

764 

764 

764

776 

776 

752 

729 

707 

685

Minimum Mean

475 520 

315 393 

335 371

290 1,308

340 374 

340 355 

380 667 

800 1,547 

1,460 3,278 

3,800 5,631 

1,390 2,685 

685 1,029 

508 624

315 1,459

6,920 see. -ft.; June 2 (1 a.m.)

Sept.

696 

685 

674 

674 

674

685 

674 

674 

663 

685

696 

674 

685 

685 

685

666 

641 

621 

612 

603

576 

558 

540 

524 

549

524 

516 

508 

516 

549

Runoff In 

acre-feet

31,990 

23,380 

22,840

949,400

23,020 

19,720 

41,020 

92,070 

201,600 

335,100 

165,100 

63,300 

37,110

1,056,000

6,070 seo.-

 * Winter discharge measurement made on this day.

»>te.- Stage-discharge relation affected by lee Nov. 10 to Apr. 5 (no gage-height record Feb. l-13j 

discharge computed on basis of weather records and records for nearby'stations).
174 GREEN RIVER BASIN

Green River near Linwood, Utah

Location.- Water-stage recorder, lat. 40°58', long. 109°35', in SW£ sec. 29, T. 3 N., R. 

21 E. ," a quarter of a mile upstream from Henrys Fork, 2 miles south of Wyoming-Utah 

State line, and 5 miles southeast of Linwood. Datum of gage is 5,844.64 feet above 

mean sea level, unadjusted.

Drainage area.- 14,300 square miles.

Records available.- October 1928 to September 1949.

Average discharge.- 21 years, 1,828 second-feet.

Extremes.- Maximum discharge during year, 10,200 second-feet June 22 (gage height, 8.08 

 feet); minimum daily, 330 second-feet Dec. 25, 26.

1928-49: Maximum discharge. 17,100 second-feet June 13, 1947 (gage height, 10.39

feet); minimum discharge recorded, 196 second-feet Nov. 27, 1934 (gage height, -0.10

foot).

Remarks.- Records good except those for period of ice effect, which are fair. Diversions 

above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

7

a

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

518 

518 

506 

512 

530

524 

512 

512 

530 

554

566 

566 

566 

560 

578

572 

572 

584 

614 

656

668 

662 

656 

650 

638

632 

626 

614 

614 

614 

596

Nov.

596 

590 

578 

578 

*578

578 

578 

578 

524 

380-

430 

405 

360 

494 

614

729 

674 

758 

506 

467

390 

400 

410 

425 

460

480 

470 

440 

400 

420

Dec.

460 

480 

500 

500 

470

*440 

420 

430 

420 

460

490 

500 

510 

520 

540

500 

460 

*410 

420 

440

450 

420 

400 

360 

330

330 

340 

370 

410 

440 

460

Jan.

450 

440 

450 

*430 

410

420 

450 

500 

490 

450

420 

440 

480 

530 

500

470 

420 

390 

410 

400

460 

500 

490 

470 

430

*390 

370 

390 

410 

410 

390

Feb.

420 

420 

390 

390 

410

400 

400 

410 

*410 

430

460 

500 

450 

420 

410

420 

430 

450 

480 

510

530

540 

520 

530 

550

570 

600 

610

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mau

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

610 

*620 

620 

630 

690

700 

700 

760 

750 

760

790 

850 

870 

900 

920

950 

1,040 

1,150 

1,300 

1,500

*1,690 

1,590 

1,640 

1,630 

1,680

1,610 

1,570 

1,420 

1,400 

1,200 

1,230

Apr.

1,260 

1,290 

1,300 

1,400 

1,420

1,670 

1,810 

2,150 

2,250 

2,350

2,390 

2,450 

2,550 

2,660 

2,700

2,670 

2,430 

2,230 

2,210 

2,340

2,490 

2,550 

2,640 

2,610 

2,670

3,070 

3,380 

3,520 

3,450 

3,310

Seoontlfoot-days

18,020 

15,290 

13,680

677,198

13,660 

13,060 

33,770 

71,220 

138,710 

219,060 

94,800 

33,800 

19,518

684,588

May

3,240 

3,230 

3,050 

2,790 

2,680

2,840 

3,310 

3,520 

2,940 

2,720

2,580 

2,530 

2,670 

2,960 

3,560

4,060 

5,160 

6,390 

7,130 

7,920

8,260 

7,870 

6,860 

5,850 

5,270

4,820 

4,620 

4,280 

4,550 

5,180 

5,870

Maximum

668 

758 

540

11,600

530 

610 

1,690 

3,520 

8,260 

10,000 

4,760 

1,560 

772

10,000

June

6,660 

7,000 

7,340 

7,090 

7,870

7,310 

6,080 

6,300 

5,960 

6,170

6,680 

7,160 

8,170 

9,140 

9,550

9,470 

8,810 

7,970 

7,470 

8,250

9,310

10,000 

9,070 

7,670 

6,720

5,980 

5,280 

4,830 

4,830 

4,920

July

4,760 

4,360 

3,920 

3,940 

3,920

3,940 

4,630 

4,670 

4,360 

4,070

3,920 

3,760 

3,550 

3,360 

3,220

3,110

2,850 

2,640 

2,500 

2,430

2,420 

2,290 

2,190 

2,080 

1,960

1,850 

1,750 

1,690 

1,610 

1,550 

1,500

Minimum

506 

360 

330

330

370 

390 

610 

1,260 

2,530 

4,830 

1,500 

772 

562

330

Aug.

,450 

,390 

,350 

,320 

,310

,280 

,250 

,230 

,230 

,310

,560 

,270 

,240 

,190 

,150

,120 

,070 

,040 

997 

948

913 

885 

857 

838 

826

808 

820 

802 

790 

784 

772

Mean

581 

510 

441

1,850

441 

466 

1,089 

2,374 

4,475 

7,302 

3,058 

1,090 

651

1,876

Sept.

772 

730 

718 

712 

706

694 

694 

688 

676 

670

730 

658 

682 

682 

682

670

658 

640 

628 

616

598 

598 

592 

580 

574

568 

562 

574 

580 

586

Runoff in 

acre-feet

35,740 

30,330 

27,130

1,343,000

27,090 

25,900 

68,980 

141,300 

275,100 

434,500 

188,000 

67,040 

38,710

1,358,000

seharge (base, 4,000 sec.-ft.).- May £1 (l p.m.) 8,280 sec.-ft.; June 5 (4 p.m.) 8,260 

15 (10:30 a.m.) 9,650 sec.-ft.; June 22 (5 p.m.) 10,200 see.-ft.

Peak dls 

ft.; June

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by lee Nov. 22, 23, Nov. 25 to Mar. 20 (no gage-height 

record Dec. 21 to Jan. 3, Feb. 1-8; discharge computed on basis of weather'records and records for 

nearby stations).
GREEN RIVER BASIN 175

sec. 5, T. 5 

if Dinosaur 

.es upstream from

Green River near Jensen, Utah

Location.- Water-stage recorder, lat. 40°24'30", long. 109°14'00", in SW^SE^ 

a., H. 24 E., 1 mile below Cub Creek and Chew Ranch, 4 miles southeast of 

National Monument headquarters, 6^ miles northeast of Jensen, and 12 mile 

Brush Creek. Prior to Sept. 14, 1948, at datum 1.50 feet higher.

Records available.- October 1946 to September 1949. 1903-6, 1914-15 at site approximately 

ib miles downstream, published as Green River at Jensen and in 1903 as Green River near 

Vernal.

Extremes.- Maximum discharge during year, 23,200 second-feet June 15 (gage height, 10.51 

feet); minimum recorded, 525 second-feet Nov. 30 (gage height, 1.28 feet),but may have been 

less during period of ice effect.

1946-49: Maximum discharge 28,800 second-feet May 13, 1947 (gage height, 10.25 feet); 

minimum recorded, that of Nov. 30, 1948, but may have been less during period of ice 

effect.

samples are collected at gaging station. Samples for chemical analyses are collected 

and rater temperatures are measured at the bridge at Jensen, 15 miles below the gaging 

station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

722 

a700 

a690 

a820 

a980

a930 

a910 

a880 

a880 

a890

a920 

948 

940 

972 

988

988 

956 

940 

940 

972

1,040 

1,080 

1,110 

1,140 

1,120

1,090 

1,080 

1,080 

1,080 

1,060 

1,050

Nov.

1,050 

1,070 

1,090 

1,120 

1,090

1,080 

1,080 

1,080 

972 

876

980 

924 

845 

876 

916

1,060 

1,260 

1,330 

1,120 

956

a820 

a700 

a700 

a760 

a850

a890 

a840 

a760 

a680 

696

Dec.

757 

778 

815 

908 

916

900 

800 

860 

729 

a850

972 

996 

1,030 

1,040 

1,130

1,070 

1,070 

1,030 

932 

964

996 

1,000 

916 

792 

650

590 

570 

600 

700 

800 

850

Jan.

800 

820 

820 

800 

720

680 

»750 

800 

870 

920

900 

850 

950 

1,050 

900

800 

650 

670 

720

800

950 

1,050 

1,020 

*1,000 

930

850 

800 

870 

920 

940 

900

Feb.

930 

960 

980 

960 

950

940 

930 

940 

960 

970

»980 

1,040 

1,040 

1,020 

950

980 

1,030 

1,060

1,030 

1,000

1,020 

1,030 

1,000 

1,000

*1,000

1,050 

1,150 

1,240

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Mare 

Aprl

Ha V

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

1,300 

1,250 

1,250 

1,300 

1,350

1,500 

1,550 

1,600 

1,750 

1,990

2,190 

2,280 

2,250 

2,150 

2,280

2,390 

2,550 

»3,160 

3,500 

3,600

3,870 

4,150 

4,150 

3,980 

3,870

3,650 

3,420 

3,270 

3,000 

2,830 

2,650

Apr.

2, 

2, 

2, 

2, 

2,

2, 

3, 

4, 

5, 

6,

7, 

6, 

6, 

6, 

7,

6, 

5, 

5, 

5, 

6,

7, 

8, 

7, 

8, 

9,

10, 

12, 

12, 

13, 

13,

Secondfoot-days

29,896 

28,471 

27,011

1,472,106

26,500 

28,140 

80, 030 

204,500 

473,900 

544,200 

187,450 

55,750 

32,426

1,718,274

330 

380 

390 

550 

750

930 

350 

150 

040 

740

690 

880 

400 

910

800

860 

880 

440 

820 

690

410 

160 

940 

020 

290

800 

200 

700 

20p 

800

May

14,300 

13,800 

11,300 

10,500 

12 , 800

14,700 

14,700 

12,900 

12,100

11,400

10,900 

11,900 

13,400 

15,000 

15,900

16,100 

18,000 

19,000 

19,900 

20,900

20,000 

19,400 

18,000 

17,000 

15,000

14,400 

14,500 

15,200 

16,000 

16,800 

18,100

Maximum

1,140 

1,330 

1,130

22,100

1,050 

1,240 

4,150 

13,800 

20,900 

22,800 

10,600 

2,470 

1,230

22,800

June

18,700 

18,600 

17,900 

17,000 

17,300

17,100 

16,700 

17,600 

17,600 

18,000

18,600 

19,600 

20,500 

21,900 

22,800

22,300 

21,200 

20,500 

20,500 

20,400

20,300 

20,300 

19,700 

18,300 

16,500

14,900 

13,200 

12,400 

12,300 

11,500

July

10,600 

9,890 

9,320 

8,790 

8,680

9,320 

9,380 

9,650 

8,970 

8,050

7,690 

7,300 

6,860 

6,400 

5,950

5,550 

5,270 

4,880 

4,440 

4,210

3,970 

3,890 

3,820 

3,710 

3,460

3,250 

2,100 

2,960 

2,830 

2,700 

2,560

Aug.

2,470 

2,400 

2,330 

2,210 

2,140

2,100 

2,080 

2,050 

2,000 

1,990

1,980 

2,140 

2,370 

2,050 

1,970

1,880 

1,810 

1,740 

1,680 

1,610

1,530 

1,460 

1,420 

1,390 

1,340

1,320 

1,280 

1,250 

1,270 

1,250 

1,240

Minimum Mean

690 964 

680 949 

570 871

570 4,0"7

650 855 

930 1,005 

1,250 2,582 

2,330 6,817 

10,500 15,290 

11,500 18,140 

2,560 6,047 

11,240 1,798 

932 1,081

570 4,708

Sept.

1,230 

1,200 

1,200 

1,140 

1,120

1,090 

1,080 

1,070 

1,070 

1,100

1,120 

1,090 

1,150 

1,080 

1,100

1,160 

1,220 

1,160 

1,130 

1,090

1,050 

1,010 

996 

972 

964

964 

940 

932 

1,010 

988

Runoff In 

acre-feet

59,300 

56,470 

53,580

2,920,000

52,560 

55,810 

158,700 

405,600 

940,000 

1,079,000 

371,800 

110,600 

64,320

3,408,000

rge (base. 14.000 see.-ft.).- May 1, (3 a.m.) 14,700 «ec.-ft.; May 7 (3:30 a.m.) 15,100 

20 (9:3O a.m. ) Zl,300 sec.-ft.; June 15 (l:30 p.m.) 23,200 sec.-ft.

Peak dlscharg 

sec.-ft.; May

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of weather records and records for other 

stations on Oreen River.

Note.- Stage-discharge relation affected by Ice Dec. 26 to Mar. 17 (no gage-height record Dee. 26 

toTeTTT 10, Mar. 3, 4); discharge computed on basis of 4 discharge measurements, weather records, 

and records for other stations on Green River.
176 GREEN RIVER BASIN

Green River near Ouray, Utah

Location - Water-stage recorder, lat. 40°04', long. 109°44', in NE^ sec. 11, T. 5 S., R. 

a K. uinta meridian, 2f miles upstream from Willow Creek and 3 miles southwest of 

Ouray.

Records available.- October 1947 to September 1949.

Extremes.- Maximum discharge during year, 33,700 second-feet June 21 (gage height, 12.62 

reet); minimum not determined, occurred during period of ice effect.

1947-49: Maximum discharge that of June '21, 1949; minimum not determined, occurred 

during period of ice effect.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,160 

1,160 

1,150 

1,150 

1,420

1,590 

1,500 

1,490 

1,420 

1,370

1,360 

1,380 

1,430 

1,430 

1,430

 1 , 440 

1,430 

1,500 

1,500 

1,500

1,500 

1,520 

1,550 

1,560 

1,590

1,620 

1,610 

1,620 

1,650 

1,670 

1,670

Nov.

1,630 

1,620 

1,620 

1,660 

1,710

1,730 

1,720 

1,710 

1,710 

1,710

1,640 

1,630 

1,680 

1,630 

1,590

1,620 

1,670 

1,770 

1,880 

1,830

1,790 

1,700 

1,620 

1,530 

1,570

*1,740 

1,780 

1,320 

*1,000 

850

Dec.

940 

1,100 

1,300 

1,500 

1,420

1,350 

1,300 

1,360 

1,400 

*1,450

1,500 

1,550 

1,700 

1,900 

*2,000

2,200 

2,000 

1,900 

1,900 

2,000

1,790 

*1,950 

1,720 

1,600 

1,310

1,300 

*1,100 

950 

910 

1,300 

1,360

Jan.

1,450 

1,700 

1,700 

1,630 

1,600

*1,520 

1,410 

1,420 

1,460 

1,510

1,600 

1,650 

1,700 

*1,720 

1,630

1,500 

1,300 

970 

1,050 

1,300

*1,580 

1,680 

1,800 

1,890 

1,860

1,810 

1,750 

1,600 

1,600 

1,700 

1,790

Feb.

1,750 

1,770 

1,820 

*1,860 

1,850

1,800 

1,800 

1,800 

1,720 

*1,660

1,700 

1,790 

1,900 

1,890 

1,850

*1,810 

1,850 

1,950 

2,000 

2,030

2,010 

1,970 

1,950 

*1,950 

1,950

1,950 

1,950 

2,020

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr> 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

1.......................................

ter year 1948-49 .......................

Mar.

2,100 

2,200 

2,140 

2,130 

2,150

2,200 

2,200 

2,400 

2,600 

*2,750

3,000 

3,300 

3,500 

4,200 

4,800

5,600 

*6,000 

5,800 

6,420 

5,890

*6,100 

6,450 

6,600 

6,350 

5,840

5,510 

5,21« 

5,140 

4,880 

4,690 

4,230

Apr.

4,050 

3,800 

3,660 

3,650 

3,740

3,950 

4,270 

4,480 

5,390 

6,730

8,560 

8,900 

8,320 

7,910 

8,530

9,570 

8,990 

7,740 

7,020 

7,260

8,150 

9,030 

9,770 

9,830 

10,100

11,800 

13,400 

14,800 

16,100 

17,500

Secondfoot-days

45,370 

48,660 

47,060

1-929,668

48,880 

52,35« 

132,380 

247,000 

619,600 

780,300 

281,370 

77,340 

52,570

2,432,880

May

18,300 

18,600 

16,600 

14,700 

15,100

17,200 

19,100 

17,500 

15,900 

15,200

14,700 

15,000 

16,100 

18,200 

20,400

21,600 

22,OOO 

24,400 

25,300 

25,800

26,000 

25,000 

24,000 

22,600 

21,000

19,800 

19,900 

21,000 

22,090 

22,900 

23,700

Maximum

1,670 

1,880 

2,200

26,000

1,890 

2,030 

6,600 

17,500 

26,000 

33,000 

16,200 

3,370 

2,700

33,000

June

[ 24,200 

24,200 

23,900 

22,400 

21,800

22, 700 

22,700 

22,800 

22,900 

24,000

25,600 

27,800 

29,900 

30,300 

31,000

31,100 

31,100 

31,300 

31,600 

33,000

33,000 

31,000 

29,800 

28,100 

25,600

23,200 

20,800 

19,100 

18,000 

17,400

July

16,200 

15,200 

14,600 

15,600 

16,100

15,400 

14,200 

13,100 

12,900 

12,300

11,000 

10,500 

9,830 

9,250 

8,590

7,860 

7,290 

7,100 

6,650 

6,130

5,720 

5,390 

5,190 

5,170 

5,280

4,770 

4,500 

4,210 

3,990 

3,780 

3,570

Minimum

1,150 

850 

910

850

970 

1,660 

2,100 

3,650 

14,700 

17,400 

3,570 

1,740 

1,550

850

Aug.

3,370 

3,260 

3,160 

3,070 

2,970

2,850 

2,740 

2,680 

3,180 

2,960

2,770 

2,760 

2,650 

2,89« 

2,760

2,550 

2,450 

2,370 

2,320 

2,260

2,200 

2,120 

2,040 

2,000 

2,020

1,940 

1,880 

1,830 

1,790 

1,760 

1,740

Mean

1,464 

1,622 

1,518

5,272

1,577 

1,870 

4,270 

8,233 

19,990 

26,010 

9,076 

2,495 

1,752

6,665

Sept.

1,730 

1,700 

1,710 

1,710 

1,700

1,690 

1,640 

1,620 

1,590 

1,590

1,660 

1,970 

1,790 

1,770 

1,810

1,790 

1,800 

1,800 

1,820 

1,790

1,730 

1,700 

1,670 

1,630 

1,580

1,550 

1,590 

1,640 

2,190 

2,700

Runoff In 

acre-feet

89,99* 

96,520 

93,340

3,827,000

96,950 

103,800 

262,600 

489,900 

1,229,000 

1,548,000 

558,100 

153,400 

104,300

4,826,000

Peak discharge (base, 16,000 see . -f t ._} . - May 7 (2:30 a.m.) 19,600 see. -ft.; May 21 (7 a.m.) 27, 200:

sec.-ft.; June 21 (1:30 a.m.} 33,700 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 27 to Mar. 18 (no gage-height record for part 

of period); discharge computed on basis of 15 discharge measurements, weather records, and records 

for stations at Oreenrlver and near Jensen.
GREEN RIVER BASIN 1'" 

Green River at Green River, Utah

Location.- Water-stage recorder, lat. 39°00', long. 110°09', in NW^SW^ sec. 15, T. 21 S.,

 H. lb' E., 1 mile southeast of town of Green River, 28 miles upstream from San Rafael 

River, and 117 miles upstream from mouth. Datum of gage is 4,040.18 feet above mean 

sea level, datum of 1989.

Drainage area.- 40,600 square miles.

Records available.- October 1894 to October 1899, October 1904 to December 1911, June 1984

 to September 1949. December 1910 to June 1984 at site 7 miles downstream, published as 

Green River at Little Valley, near Green River. Records of monthly discharge prior to 

October 1938 have been republished in Water-Supply Paper 918.

Average discharge.- 50 years (1894-99, 1904-49), 6,720 second-feet.

Extremes.- Maximum discharge during year, 33,200 second-feet June 19 (gage height, 18.73

 feet); minimum daily, 1,000 second-feet Dec. 31. ,,*.,. 

1894-99, 1904-49: Maximum discharge, 68,100 second-feet June 87, 1917 (gage height, 

14.53 feet, site and datum then in use); minimum, 255 second-feet Nov. 26, 1931; minimum gage height, 4.08 feet Aug. 1, Dec. 5, 1934.

Remarks.- Records excellent except those for periods of ice effect, which are good. Diversions above station for irrigation. Records of chemical analyses, water temperatures , and suspended sediment loads for water year 1949 are given in Water-Supply Paper 

1163.

Revisions (water years).- W 918: 1895-1900.

Discharge, in second-feet, water year October 1946 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,130 

1,140 

1,180 

1,180 

1,200

1,290 

1,380 

1,590 

1,610 

1,570

1,520 

1,430 

1,380 

1,380 

1,430

1,430 

1,430 

1,450 

1,480 

1,520

1,520 

1,520 

1,520

Iy530

1,570

1,610 

1,640 

2,100 

2,060 

1,870 

1,830

Nov.

1,790 

1,770 

1,740 

1,720 

1,700

1,700 

1,760 

1,770 

1,770 

1,740

1,760 

1,770 

1,760 

1,720 

1,760

1,760 

1,660 

1,680 

1,720 

1,830

1,930 

1,960 

1,960 

1,890 

1,770

1,640 

1,550 

1,550 

1,610 

1,450

Dec.

1,020 

1,050 

1,090 

1,280 

1,590

1,420 

1,380 

1,370 

1,400 

1,500

1,550 

1,720 

1,870 

1,790 

1,930

2,020 

*2,240 

2,150 

1,980 

1,960

2,100 

1,870 

»1,S30 

1,740 

1,550

1,400 

1,350 

1,400 

1,250 

1,100 

 1,000

Jan.

1,250 

1,230 

1,500 

1,800 

1,700

1,500 

1,360 

1,360 

1,370 

»1,440

1,500 

1,600 

1,700 

1,900 

2,000

1,950 

*1,800 

1,700 

1,400 

1,100

1,200 

1,350 

1,650 

»1,820 

2,100

2,000 

1,950 

1,900 

1,800 

1,800 

1,900

Feb.

1,900 

*1,900 

1,800 

1,900 

2,OOO

1,950 

1,950 

1,900 

*1,950 

1,850

1,920 

1,900 

2,000 

2,050 

2,000

1,950 

»1,900 

1,860 

2,000 

2,100

2,100 

2,100 

2,050 

2,020 

 2,050

2,100 

2,100 

2,150

Month

Octo 

Npve 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

2,200 

2,350 

»2,500 

2,520 

2,550

2,560 

2,510 

2,510 

»2,440 

2,510

2,610 

2,890 

3,160 

3,400 

4,110

4,690 

5,030 

5,810 

7,600 

8,700

7,050 

6,540 

6,800 

6,540 

6,400

6,020 

5,640 

5,510 

5,510 

5,450 

5,250

Apr.

4,870 

4,470 

4,260 

4,000 

3,910

3,910 

4,110 

4,500 

4,780 

5,220

6,360 

8,220 

9,580 

8,950 

8,260

8,340 

9,070 

8,950 

8,060 

7,530

7,450 

8,100 

9,070 

9,830 

10,100

10,300 

11,700 

13,600 

15,200 

16,200

Secondfoot-days

46,490 

52,190 

48,900

1,980,450

50, 630 

55,350 

139,360 

238,900 

615,700 

779,800 

298,520 

86,750 

56,150

2,468,740

May

17,000 

17,900 

17,900 

16,200 

14,400

15,200 

18,400 

19,800 

17,800 

15,600

14,700 

14,300 

14,600 

16,100 

18,200

20,400 

21,800 

23,300 

25,400 

26,400

26,500 

26,000 

25,000 

23,600 

21,900

20,500 

19,600 

20,200 

21,700 

22,200 

23,100.

Maximum

2,100 

1,960 

2,240

27,600

2,100 

2,150 

8,700 

16,200 

26,500 

32,700 

16,600 

3,850 

2,660

32,700

June

24,000 

24,700 

24,300 

24,000 

23,500

22,400 

23,000 

22,900 

22,700 

23,000

24,000 

25,800 

28,000 

29,600 

30,300

30,600 

30, 400 

30,500 

31,500 

31,600

32; 700 

31,900 

30,100 

28,700 

26,900

24,400 

22,000 

20,300 

18,600 

17,400

July

16,600 

15,300 

14,800 

15,200 

16,200

16 , 100 

15, 500 

14,500 

13,600 

12,800

12,200 

11,200 

10,400 

9,700 

9,110

8,540 

7,950 

7,380 

7,080 

6,760

6,300 

5,950 

5,610 

5,450 

5,680

5,580 

5,380 

4,840 

4,500 

4,230 

4,080

Minimum

1,130 

1,450 

1,000

1,000

1,100 

1,800 

2,200 

3,910 

14,300 

17,400 

4,080 

1,850 

1,640

1,000

Aug.

3,850 

3,680 

3,510 

3,400 

3,240

3,160 

3,050 

2,970 

3,290 

3,130

3,630 

3,370 

3,070 

2,970 

2,860

3,070 

2,940 

2,710 

2,610 

2,510

2,420 

2,370 

2,280 

2,240 

2,190

2,240 

2,150 

2,080 

2,020 

1,890 

1,850

Mean

1,500 

1,740 

1,577

5,411

1,633 

1,977 

4,495 

7,963 

19,860 

25,990 

9,630 

2,798 

1,872

6,764

Sept.

1,810 

1,870 

1,870 

1,870 

1,830

1,810 

1,810 

1,760 

1,740 

1,740

1,720 

1,790 

1,910 

2,130 

2,020

1,960 

1,910 

1,890 

1,856 

1,850

1,850 

1,830 

1,770 

1,760 

1,740

1,700 

1,660 

1,640 

2,660 

2,400

Runoff In 

acre-feet

92,210 

103,500 

96,990

3,928,300

100,400 

109,800 

276,400 

473,900 

1,221,000 

1,541,000 

592,100 

172,100 

111,400

4,897,000

Peak discharge (base, 17,000 sec.-ft.).- May 7 (11:30 p.m.) 20,200 sec.-ft. 

ec.-ft.j June 19 (9 p.m.) 33,200 sec.-ft. 

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Dec. 24 to Mar. 5.

May 21 (7 p.m.) 26,700
178 GREEN RIVER BASIN

Beaver Creek near Daniel, Wyo.

Location - Water-stage recorder, lat. 43°00' , long. 110°09<, in sec. 18, T. 35 N., R. Ill 

W., at Hanson Ranch, half a mile downstream from forks, 1 mile upstream from mouth, 

2 miles southwest of Warren Bridge, and 11 miles northwest of Daniel.

Drainage area.- 141 square miles.

Records available.- November 1938 to September 1949 (no winter records 1943).

Extremes.- Maximum discharge recorded during year, 689 second-feet Apr. 25 (gage height, 

 6.9B feet); no flow July 8, 9, 21-24.

1938-49: Maximum discharge, 1,260 second-feet May 2, 1943 (gage height, 8.23 feet), 

from rating curve extended above 1,060 second-feet; no flow at times in most years.

Revisions.- The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede those published in the water-supply 

papers indicated.

Water-S apply 

Paper

959..........

979. .........

1009. ........

1089.........

Water 

year

1946-47

Date

Apr 12

May 2

Apr 10

May 2

Gage height 

(feet)

6.3

8.23

7.09

Discharge 

(second-feet)

468

1,260

860

686

Remarks - Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Revisions.- Revised figures of discharge for high-water periods in the water years 1943, 

1944, superseding those published in Water-Supply Papers 979, 1009, are given herewith:

Day 

(water year)

1942-43

Apr'. 2o. ....

21. ....

22.....

23. ....

24.....

25.....

Discharge 

(second-feet)

440

427

440

525

637

667

Day 

(water year)

1942-43

Apr . 26 .....

27.....

28.....

29. ....

30. ....

May 1. ....

Discharge 

(second-feet)

615

399

409

466

570

733

Day 

(water year)

1942-43

May 2.. ....

3......

4. .....

5. .....

1943-44

Apr. 11.....

Discharge 

(second-feet)

715

576

517

363

644

Month

May. ................

Water year 1943-44 

Calendar year 1944

Secondfoot-days

6,942

3,957

9,657.8 

8,858.7

Maximum

733

644

644

Minimum

97

0 

0

Mean

258

224

132

26.4 

24.2

Runoff in 

acre-feet

15,380

13,770

7,850

19,160 

17,580
GREEN RIVER BASIN 179

DIacharge, in second-feet, of Beaver Creek near Daniel, Wyo., 

water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.6 

1.1 

1.1 

1.0 

1.0

.9 

.8 

.8 

.7 

.6

.6

*.6 

2.5 

6.0 

7.4

7.1 

7.1 

7.1 

6.8 

7.1

7.1 

6.8 

6.6 

6.6 

6.8

6.8 

7.1 

6.8 

7.4 

7.4 

7.8

Nov.

7.8 

8.1 

9.2 

9.0 

8.5

8.0 

8.0 

8.5 

8.5 

9.0

9.0 

9.5 

10 

8.0 

7.5

7.0 

7.0 

6.5 

6.0 

5.5

5.0 

*5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

Dec.

> 5.5

Jan.

' 5.0

Feb.

> 5.0

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MRV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Peak discharge (base, 140 sec. -ft.).- Apr.

ft.j May 19 (5 a.m.) 545 sec. -ft. ; June 1 (6 

* Winter discharge measurement made on thi 

Note.- Stage-discharge relation affected b 

Oct. 1-14, Nov. 23 to Apr. 9 (stage-dlscharg 

30 to July 7; discharge computed on basis of 

records, and records for nearby stations.

Mar.

' 6.5 

(*)

Apr.

10

11 

12 

14 

16

20 

20 

20 

23 

*26

28 

30 

33 

35 

35

35 

36 

44 

89 

190

242 

355 

460 

448 

498

460 

425 

405 

312

193

Secondfoot-days

139.1 

210.6 

170.5

7,488.6

155.0 

140.0 

201.5 

4,525 

3,985 

1,240.0 

11.5 

72.8 

51.1

10,902.1

May

138 

126 

181 

181 

156

120 

100 

109 

100 

78

71 

57 

50 

45 

45

67 

298 

420 

398 

218

160 

120 

136 

110 

82

55 

57 

76 

80 

72 

79

Maximum

7.8

10

255

498 

420 

150 

1.5 

4.0 

3.8

498

June

150 

114 

78 

62 

90

78 

61 

76 

79 

42

36 

36 

40 

34 

25

11 

4.0 

1.9 

80 

72

30 

11 

5.5 

4.8 

4.2

3.1 

4.5 

4.8 

1.5 

.7

July

0.3 

.2 

.4 

.7 

1.1

1.5 

.4 

0 

0 

.1

.2 

.8 

.8 

.4 

.4

.4 

.4 

.2 

.1 

.1

0 

0 

0 

0 

.2

.5 

.5 

.8 

.8 

.1 

.1

Aug.

0

1 

2 

3 

3. 

3.

3. 

3. 

3. 

2. 

2.

2. 

2. 

3.

4. 

4.

3. 

3. 

3. 

3. 

3. 

3.

Minimum Mean

0.6 4.49 

5.0 7.02 

5.5

0 20.5

5.0 

5.0 

6.5 

10 151 

45 129 

.7 41.3 

0 .37 

.2 2.35 

.4 1.70

0 29.9

25 (4:30 p.m.) 689 sec. -ft.; May 3 (11 a.m.) 

:30 a.m.) 167 sec. -ft. 

s day. 

y Ice Nov. 4-22, Apr. 10-15. No gage-height 

e relation affected by Ice during most of per 

discharge measurements made Oct. 12, Mar. 30

2 

2 

3 

4 

4

4 

5 

4 

4 

9

5 

7 

3 

3 

5

5 

5

1 

9 

9

9 

9

1 

0 

0

5 

5 

5 

8 

8 

5

Sept.

3.8 

3.5 

3.5 

3.5 

3.5

3.3

,1.5

li* 

1.4

1.9 

2.5 

2.1 

1.9 

1.5

1.5 

1.4 

1.4 

1.2 

.7

.5 

.4 

.4 

.4 

.4

.4 

.5 

1.0 

1.3 

2.9

Runoff In 

acre-feet

276 

418 

338

14,850

307 

278 

400 

8,980 

7,900 

2,460 

23 

144 

101

21,625

234 sec.-

record 

lod) , Juntt 

, weather
180 GREEN RIVER BASIN

Horse Creek near Daniel, Wyo.

Location.- Water-stage recorder, lat. 42°56', long. 110°12', in sec. 10, T. 34 N., R. 112 

W., 12 miles northwest of Daniel. Datum of gage is 7,349.61 feet aoove mean sea level, 

datum of 1929. Prior to Nov. 30, 1948, water-stage recorder at site 350 feet downstream. Datum of gage was 7,349.88 feet above mean sea level, datum of 1929.

Drainage area.- 124 square miles.

Records available.- October 1931 to September 1949 (no winter records 1931-39, 1943, 1945).

Extremes.- Maximum discharge during year, 671 second-feet May 29 (gage height, 3.23 feet); 

minimum daily, 7.4 second-feet Sept. 3.

1931-49: Maximum discharge, 1,670 second-feet May 31, 1936 (gage height, 3.53 feet, 

site and datum then in use), from rating curve extended above 800 second-feet; minimum 

daily, 1 second-foot July 22, 23, 1940.

Remarks.- Records excellent after May 1 and fair before except those for periods of ice 

effect or no gage-height record, which are poor. Diversions above station for 

irrigation.

Revisions (water year).- W 1089: 1946.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

12 

12 

12 

12

12 

12 

12 

12 

13

13 

13 

12 

12 

13

13 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

13 

13 

13 

13 

12

Nov.

13 

13 

13 

12 

12

13 

13 

13 

13 

14

13

13 

14 

16 

16

14 

14 

14 

14 

15

15 

*15 

15 

13 

11

11 

10 

11 

11 

11

Dec.

11 

12 

12 

13 

11

12 

12 

12 

11 

12

13 

14 

13 

12 

12

11 

11 

11 

13 

13

13 

11 

12 

12 

11

11 

11 

12 

*13 

13 

13

Jan.

12 

12 

12 

11 

11

12 

12 

12 

12 

11

11 

12 

12 

12 

11

11 

11 

*11 

11 

11

11 

11 

11 

11 

10

10 

10 

10 

10 

10 

10

Feb.

10 

10 

10 

10 

10

10 

10 

10 

10

11 

11

10 

10 

10 

10

10

11 11 11 

11

10 

10 

9.9 

9.8 

9.8

9.8 

9.8 

9.8

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebn 

Marc 

Apr! 

May. 

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 3OO sec. -ft.).- Apr.

May 29 (1 p.m.] 671 sec. -ft. ; June 16 (1O a. 

* Winter discharge measurement made on thl 

Note.- Stage-discharge relation affected b 

height record Oct. 13 to Nov. 29, Dec. 17 to 

part of period); discharge computed on basis

Mar.

9.8 

9.8 

9.8 

9.8 

9.8

9.9 

*10 

11 

11 

11

12 

12 

13 

13 

13

13 

13

13 

14

14

14. 

15 

15 

15 

13

13 

13 

12 

13 

13 

14

Apr.

15 

16 

18 

19 

21

22 

20 

23 

26 

26

*28 

32 

34 

35 

34

39 

51 

67 

76 

88

78 

98 

194 

214 

228

218 

214 

214 

214 

164

Secondfoot-days

381 

395 

373

20,172.8

344 

284.9 

381.9 

2,526 

8,359 

5,612 

688.8 

552 

383.2

20,280.8

25 (2 a.m.) 

a. ) 428 sec. 

a day. 

y Ice Nov. 3 

Mar. V '(sta 

of 4 dlscha

May

115 

103 

140 

161

115

90 

80 

93 

115 

154

164 

186 

250 

260 

330

325 

386 

428 

356 

350

305

255 

241 

223 

265

345 

416 

542 

590 

506 

470

Maximum

13 

16 

14

589

12 

11 15- 

228 

590 

410 

39 

22 

18

590

June

410 

290 

218 

186 

190

186 

194 

232 

356 

380

350 

345 

330 

250 

186

161 

133 

136 

265 

183

127 

96 

78 

74

51

46 

45 

43 

39 

32

July

za

25 

28 

38 

39

32 

25 

22 

17 

26

26 

25

22 

18 

16

14 

13 

8.8 

15 

25

21 

20

23 

23 

21

21 

21 

20 

19 

19 

18

Aug.

17 

17 

16 

16 

16

18 

19 

17 

18 

22

22 

21 

20 

18

18

20 

19 

18 

17 

16

16 

16 

16 

20 

20

18 

17

16 

16 

16 

16

Sept.

16 

7.8 

7.4 

7.8 

8.8

8.0 

7.8 

8.0 

7.8 

8.0

9.2

9.6 

12 

16 

16

16 

16 

16 

16 

15

14 

14 

15 

15 

16

16 

15 

15 

16 

18

Minimum Mean %£*£

12 12.3 756 

10 13.2 783 

11 12.0 740

3.8 55.1 40,010

10 11.1 682 

9.8 10.2 565 

9.8 12.3 757 

15 84.2 5,010 

80 270 16,580 

32 187 11,130 

8.8 22.2 1,370 

16 17.8 1,090 

7.4 12.8 760

7.4 55.6 40,220

320 sec. -ft.; May 18 (11 a.m.) 483 sec. -ft.; 

-ft.; June 19 (8 a.m.) 315 sec. -ft.

D to Dec. 16, Mar. 8 to Apr. 5. No gageje-dlscharge relation affected by Ice during 

r-ge measurements, weather records, and recrby
GREEN RIVER BASIN 

Cottonwood Creek near Daniel, Wyo.

181

Location.- Water-stage recorder, lat. 42°47', long. 110°09', in sec. 11, T. 32 N., R. 112 

w., ij miles downstream from forks and 7 miles southwest of Daniel.

Drainage area.- 204 square miles.

Records available.- October 1938 to September 1949 (no winter records 1943). April 1916 

to September 1919 and October 1931 to November 1932 at site 4 miles downstream (records 

not equivalent).

Average discharge.- 10 years (1938-42, 1943-49), 50.7 second-feet.

Extremes.- Maximum discharge during year, 478 second-feet May 19 (gage height, 6.54 feet); 

minimum daily, 8.5 second-feet Aug. 27, 28, Sept. 18.

1938-49: Maximum discharge, 648 second-feet June 19, 1946 (gage height, 6.75 feet), 

from rating curve extended above 460 seoond-feet. No flow Aug. 19-22, 1940.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

wnich are fair. Diversions above station for irrigation.

Revisions (water years).- W 1119: 1941, 1943, 1946.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

10 

10 

11 

11

11 

11 

12 

12 

13

14 

*15 

15 

15 

26

28 

19 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

18 

18 

17 

16

Nov.

17 

18 

22 

b21 

b20

b!9 

b!9 

b20 

b20 

b20

b21 

b22 

b21 

b21 

b20

b!9 

b!8 

b!8 

18 

18

17 

 17 

17

18 

18

17 

17 

17 

17 

18

Dec.

20

Jan.

. 19

Feb.

19

Month

Octo 

Nove 

Dace

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

Lender year 1948

uary

ter year 1948-49 ...............

Mar.

' 25

Apr.

29 

30 

31 

35 

45

50 

56 

62 

66 

70

76

92 

106

110 

 138

146 

148 

151 

156 

161

159 

159 

174 

202 

208

199 

180 

167 

154 

135

Secondfoot-days

472 

565 

620

19,134.7

589 

532 

775 

3,487 

5,764 

6,038 

1,761 

368,0 

335.5

21,306.5

May

117 

105 

128 

138 

133

120 

102 

102 

112 

122

125 

135 

143 

151 

161

187 

278 

370 

410 

285

254 

223 

214 

193 

187

187 

196 

208 

220 

226 

232

Maximum

28 

22

378

208 

410 

338 

161 

20 

17

410

June

257 

229 

199 

185 

193

187 

187 

180 

220 

226

223 

232 

247 

232 

208

190 

177 

187 

338 

301

232 

193 

177 

164 

148

146 

164 

151 

143 

122

Minimum

July

10 

17

-

29 

102 

122 

11 

8.5 

8.5

8.5

90 

81 

98 

141 

161

135 

107 

84 

70 

107

95 

73 

64 

58 

48

41 

30 

27 

29 

27

24 

22 

24 

19 

17

17 

15 

15 

17

14 

11

Aug.

9.5 

10 

10 

9.0 

9.0

12 

12 

10 

10 

16

20 

17 

13 

11 

10

11 

11 

13 

14 

12

10 

10 

11 

17 

19

15 

8.5 

8.5 

10 

10 

9.5

Mean

15.2 

18,8 

20

5Z.3

19 

19 

25 

116 

186 

201 

56.8 

11.9 

11.2

58.4

Sept.

10 

10 

10 

13 

15

14 

13 

11 

10 

10

11 

15 

17 

14 

13

12 

9.0 

8.5 

9.0 

9.0

9.0 

9.0 

9.5 

9.5 

10

11 

10 

9.0 

10

15

Runoff In 

acre-feet

936 

1,120 

1,230

37,950

1,170 

1,060 

1,540 

6,920 

11,430 

11,980 

3,490 

730 

665

42,270

Peak discharge (base. 250 see.-ft.).- Hay 19 (2:30 a.m.) 478 sec.-ft.; June 1 (4 p.m.) 268 sec.-ft.; 

June 19 (6:SO p.m.) 397 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 19 to Apr. 14 (stage-discharge relation affected by Ice during 

most or period};, discharge computed on basis of 1 discharge measurement, weather records, and records 

for stations on nearby streams.
182 GREEN RIVER BASIN

New Fork River below New Fork Lake, near Cora, Wyo.

Location.- Water-stage recorder, lat. 43°05', long. 110°01', in sec. 20, T. 36 N., R. 

110 W., 2 miles downstream from New Pork Lake and 9'jniles north of Cora. Prior to 

Sept. 16, 1949, water-stage recorder at site 70 feet downstream at same datum.

Drainage area.- 36.2 square miles.

Records available.- October 1938 to September 1949 (no winter records 1941, 1943).

Average discharge.- 11 years, 47.3 second-feet.

Extremes.- Maximum discharge during year, 360 second-feet June 28 (gage height, 4.76 feet); 

minimum daily not determined, occurred during period of no gage-height record.

1938-49: Maximum discharge, 466 second-feet June 18, 1948; maximum gage height, 

5.39 feet May 24, 1941; minimum daily discharge, 0.1 second-foot May 13, 1941, when 

gates in dam at New Fork Lake were closed.

Remarks.- Records good except those for period of no gage-height record, which are fair, 

flow regulated for irrigation by New Pork Lake (capacity, 45,900 acre-feet). No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

18 

17 

17 

17

17 

16 

16 

16

15

15 

14

14 

14 

14

14 

14 

14 

14 

13

13 

13 

13

13 

13

13 

13 

13

13 

13 

13

Nov.

13 

13

13 

13 

13

13 

13 

13 

12 

12

12 

12 

12 

12 

12

12 

12 

12

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

Dec.

12

Jan.

11

Feb.

> 11

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

1...... .................................

ter year 1948-49 ...............

Mar.

13

Apr.

' 17

7.9 

7.9

Seeondfoot-days

450 

368 

372

20,840.3

341 

308 

403 

409.9 

501.9 

7,139 

6,149 

351 

330

17,122.8

May

7.9 

7.9 

7.9 

7.9 

7.9

8.2 

8.9 

8.9 

8.9 

9.3

9.3 

9.3 

9.3 

9.3 

9.3

9.7 

10 

10 

10 

10

10 

10 

10 

10 

10

10 

10 

10 

10 

62 

170

Maximum

18 

13

414

170 

355 

345 

12 

13

355

June

196 

210 

258 

270 

260

252 

248 

248 

250 

252

242 

230 

218 

206 

202

196 

184 

172 

220 

295

270 

252 

238 

218 

212

200 

190 

245 

355 

350

July

345 

342 

338 

335 

330

328 

325 

320 

312 

308

302 

295 

288 

282 

214

150 

150 

150 

148 

148

146 

144 

140 

136 

106

12 

11 

11 

11 

11 

11

Minimum

13 

12

.3

7.9 

172 

11 

11 

10

-

Aug.

11 

12 

12 

12 

12

12 

12 

12 

12 

12

11 

11 

11 

11 

11

11 

11 

11

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11 

12

Mean

14.5 

12.3

12

56.9

11 

11 

13 

13.7 

16.2 

238 

198 

11.3 

11.0

46.9

Sept.

12 

11 

12 

12 

11

11 

11 

11 

11 

11

11 

11 

12 

12 

13

11 

10 

10 

10 

10

10 

10 

10 

10 

10

11 

11 

11 

12 

12

Runoff In 

acre-feet

893 

730 

738

41,340

676 

611 

799 

813 

996 

14,160 

12,200 

696 

655

33,970

Note.- Ho gage-height record Nov. 12 to Apr. 29} discharge computed on basis of weather records 

and records for nearby stations.
GREEN RIVER BASIN 183

New Pork River near Boulder, Wyo.

Location.- Water-stage recorder, lat. 42°45', long. 109°44', in sec. 9, T. 32 N., R. 108 

W.,7U feet downstream from county highway bridge, an eighth of a mile upstream from 

Boulder Creek, and half a mile southwest of Boulder.

Drainage area.- 552 square miles.

Records available.- May 1915 to September 1949.

Average discharge.- 34 years, 393 second-feet.

Extremes.- Maximum discharge during year, 2,120 second-feet June 14 (gage height, 5.36 

I'eet); minimum daily, 88 second-feet Feb. 13.

1915-49: Maximum discharge observed, 12,300 second-feet June 17, 1918 (gage height, 

8.7 feet), from rating curve extended above 6,000 second-feet; minimum daily, 42 secondfeet Dec. 15-17, 1915.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Flow partly regulated by New Pork Lake (capacity, 45,900 acre-feet). 

Diversions above station for irrigation.

Revisions.- W 879; Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

97 

97 

97 

94 

100

97 

97 

97

100 

100

100 

100 

97 *97 

118

130 

121 

115 

112 

106

103 

100 

97 

97 

97

97 

97

100 

106 

106 

106

Nov.

106 

109 

109 

109 

103

112 

127 

127 

125 

120

105 

100 

100 

98 

98

95 

95 

95

100 

110

130 

130 

130 

b!30 

b!25

*b!20 

bllO 

b!05 

b!05 

bl!5

Dec.

bl!5 

bl!5 

b!20 

b!30 

bl!5

bllO 

bllO 

bl!5 

115 

110

115 

120 

125 

120 

110

*b!05 

blOO 

blOO 

bl05 

110

105 

105 

105 

105 

98

94 

b98

b!05 

105 

105 

105

Jan.

105 

100 

94 

94 

96

105 

105 

110 

100 

100

105 

*110 

110 

115 

105

98 

94 

105 

98 

105

110 

110 

115 

100 

95

92 

99

105 

105 

105 

100

Feb.

*94 

10O 

100 

105 

110

96

110 

110 

110 

110

115 

115 

88 

96 

100

105 

105 

*105 

110 

105

110 

110 

115 

115 

115

115 

120 

125

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 19 4(

ter year 1948-49 .......................

Mar.

120 

120 

125 

130 

130

125 

130 

*135 

135 

140

140 

140 

135 

130 

130

130 

125 

125 

130 

130

125 

125 

120 

120 

120

120 

115 

bl!5 

bl!5 

115 

115

Apr.

109 

109 

106 

112 

127

145 

159 

184 

220 

256

305 

350 

365 

*285 

229

229 

238 

234 

212 

204

192 

180 

176 

170 

176

180 

180 

212 

204 

247

Secondfoot-days

3,178 

3,343 

3,395

135,888

3,190 

3,014 

3,910 

6,095 

23,689 

47,499 

27,590 

6,821 

3,630

135,354

Peak discharge (base, 1,500 sec. -ft.).- May 19 (3 a.m.

May

265 

285 

256 

285 

295

295 

285 

275 

265 

270

280 

290 

385 

542 

709

927

1,250 

1,560 

1,690 

1,530

1,320 

1,160 

1,020 

927 

823

758 

862

1,000 

1,150 

1,310 

1,420

Maximum

130 

130 

130

3,180

115 

125 

140 

365 

1,690 

2,110 

1,360 

390 

148

2,110

1,700 sec.

June

1,510 

1,510 

1,320 

1,170 

1,070

968 

961 

1,090 

1,280 

1,490

1,700 

1,950 

2,090 

2,110 

2,030

1,910 

1,800 

1,710 

1,930 

2,050

2,020 

1,880 

1//80 

1,610 

1,450

1,370 

1,450 

1,450 

1,480 

1,360

July

1,280 

1,240 

1,200 

1,280 

1,360

1,350 

1,300 

1,260 

1,250 

1,220

1,140 

1,080 

1,070 

1,010 

862

797 

745 

709 

697 

721

733 

685 

643 

608 

598

542 

485 

460 

450 

420 

395

Minimum

94 

95 

94

80

92 

88 

115 

106 

256 

961 

395 

124 

94

88

-ft . ; June

Aug.

390 

355 

340 

320 

310

300 

295 

275 

260 

265

256 

252 

234 

229 

204

192 

192 

188 

180 

173

170 

166 

152 

166 

159

148 

139 

133 

127 

127 

124

Mean

103 

111

110

371

103 

108 

126 

203 

764 

1,583 

890 

220 

121

371

Sept.

121 

112 

118 

118 

118

115 

106 

94 

97

106

133 

130 

121 

130 

133

127 

130 

130 

127 

124

121 

118 

118 

115 

115

118 

124 

127 

136

148

Runoff In 

acre-feet

6,300 

6,630 

6,730

269,500

6,330 

5,980 

7,760 

12,090 

46,990 

94,210 

54,720 

13,530 

7,200

268,500

1 (11 p.m.) 1,600

sec.-ft.; June 14^3 p.mTJ Z,1ZO sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 9-23, Dec. 9-15, 20-26, Dee. 29 to Mar. 27 (stage-discharge 

relation affected by Ice during most of periods); discharge computed on basis of 4 discharge measurements, weather records, and records for stations on nearby streams.

939921 O- 51 - IS
184 GREEN RIVER BASIN

Pine Creek at Pinedale, Wyo.

Location.- Water-stage recorder, lat. 42°S2', long. 109°52', at north edge of sec. 4, T.

33 M., R. 109 W., 30 feet downstream from bridge on U. S. Highway 187 at Pinedale,

3 miles upstream from mouth. Datum of gage is 7,162.34 feet above mean sea level,

datum of 1929. Prior to Nov. 12, 1948, water-stage recorder at site 90 feet upstream.

Datum was 7,165.40 feet above mean sea level, datum of 1929. 

Drainage area.- 118 square miles.

Kecoras available.-' April to October 1904, May 1915 to September 1949. 

Average discharge.- 34 years, 132 second-feet. 

Extremes.- Maximum discharge during year, 917 second-feet June 20 (gage height, 5.33 feet);

minimum daily, 7.1 second-feet Oct. 5, 6.

1904, 1915-49: Maximum discharge, 2,310 second-feet June 17, 1918 (gage height, 5.0

feet, site and datum then in use); minimum daily, 2 second-feet Apr. 1-26, May 6-8,

1931. 

Remarks.- Records good except those for periods of ice effect or no gage-height record,

which are fair. Diversions above station for irrigation.- Flow regulated by Fremont

Lake (regulated capacity, 20,600 acre-feet, of which 9,840 acre-feet is for power

purposes and 10,760 acre-feet is for irrigation).

Diversions, in acre-feet, above station during water year 1949 are given In the

following table:

Bloom. ..'...........

May

367

June

3,900

Month

July

4,270

August

1,640

September

527

Note.- No record available for Beyer ditch.

Cooperation.- Recordsof diversions furnished by Bureau of Reclamation. 

Kevlsions.- W 879: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.8 

8.4 

8.4 

8.4 

7.1

7.1 

7.8 

7.8 

7.8 

7.8

7.8 

7.8 

7.8 

9.0 

9.7

9.7 

9.7 

9.7 

9.7 

9.0

9.0 

8.4 

8.4 

9.0 

8.4

9.0 

8.4 

8.4 

9.0 

9.0 

9.0

Nov.

9.0 

9.0 

9.7 

10 

9.7

20 

34 

32 

37 

34

32 

29 

*27 

26 

26

25 

25 

26 

29 

36

33 

31 

34 

31 

27

25 

24 

25 

30 

30

Dec.

30 

32 

39 

33 

30

30 

32 

35 

34 

33

34 

33

36 

38 

38

38 

*36 

34 

35 

38

35 

34 

34 

34 

32

31 

32 

33 

35 

36 

36

Jan.

36 

36 

34 

32 

32

34 

36 

35 

33 

31

32 

34 

*35 

36 

36

33 

33 

34 

34

36

40 

40 

40 

36 

33

35 

40 

41

41 

40 

*38

Feb.

36 

36 

37 

39 

39

34

36 

37 

39 

40

40 

38 

36 

38 

40

42 

*42 

42 

40 

40

40 

38 

40 

39 

38

38 

39 

40

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ter year 1948-49 ...............

Mar.

38 

38 

40 

40 

40

40 

40 

*40 

39 

38

36 

36 

35 

35 

34

34 

34 

34 

38 

33

34 

31 

32 

32 

32

32 

32 

32 

32 

32 

32

Apr.

32 

32 

34 

36 

36

34 

34 

33 

33 

31

*33

33 

31 

34 

39

38 

38 

38 

38 

40

41 

41 

42 

42 

42

31 

20 

19

14 

16

Seeondfoot-days

264.3 

775.4 

1,060

32,478.7

1,106 

1,083 

1,095 

1,005 

5,054 

19,606 

10,292 

1,727 

723

43,790.7

May

17 

17 

18 

20 

22

22 

23 

24 

26 

30

32

36 

46 

57 

72

96 

128 

168 

212 

242

266 

270 

266 

276 

266

296 

410 

375 

410 

445 

466

Maximum

9.7 

37 

39

1,110

41 

42 

40 

42 

466 

908 

548 

142 

41

908

June

496 

496 

472 

440 

405

352 

365 

385 

440 

514

639 

738 

802 

866 

866

858 

826 

818 

858 

908

890 

866 

818 

738 

667

632 

639 

639 

611 

562

July

548 

520 

508 

520 

527

520 

484 

472 

466 

445

420 

410 

385 

336 

288

280 

270 

259 

256 

273

259 

236 

218 

210 

208

168 

165 

163 

160 

160 

158

Minimum

7.1 

9.0 

30

4.5

31 

34 

31 

14 

17 

352 

158 

16 ' 15

7.1

Aug.

142 

101 

94 

91 

88

83 

80 

64 

64 

64

64 

64 

64 

57 

58

59 

58 

54 

52 

53

52 

36 

25 

26 

25

25 

20 

16 

16 

16 

16

Mean

8.53 

25.8 

34.2

88.7

35.7 

38.7 

35.3 

33.5 

163 

654 

332 

^5.7 "4.1

120

Sept.

16 

15 

15 

15 

15

16 

16 

16 

16 

24

33

26 

26 

26 

27

27 

28 

28 

22 

22

22 

22 

19 

20 

20

29 

41 

40 

41 

40

Runoff In 

acre-feet

524 

1,540 

2,100

64,410

2,190 

2,150 

2,170 

1,990 

10,020 

38,890 

20,410 

3,430 

1,430

86,840

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 18, 19, Nov. 25 to Dec. 2, Dec. 5-10, Dec. 13 

to Mar. 9, Mar. 25 to Apr. 1 (no gage-height record Dec. 20 to Jan. 10, Jan. 17-30, Feb. 3-16; discharge computed on basis of weather records and records for stations on nearby streams).
GREEN RIVER BASIN 185

Pole Creek below Little Half Moon Lake, near Plnedale, Wyo.

Location. - Water-stage recorder, lat. 42°53', long. 109°43', in sec. 26, T. 34 N., R. 108 

W. , lj miles downstream from Little Half Moon Lake and 7 miles east of Pinedale. Prior 

to Oct. 27, 1948, at site a quarter of a mile upstream at different datum.

Drainage area . - 87.5 square miles.

Records available.- October 1938 to September 1949 (no winter records 1943-45).

Extremes . - Maximum discharge during year, 892 second-feet May 18 (gage height, 5.82 feet), 

from rating curve extended above 530 second-feet; minimum daily, 4.0 second-feet 

Oct. 7-14.

1938-49: Maximum discharge, 1,090 second-feet June 23, 1943 (gage height, 6.73 feet, 

site and datum then in use); minimum observed, 2.9 second-feet Nov. 10, 1944 (discharge 

measurement), but may have- been less during period of no record.

Remarks .- Records good above 30 second-feet and fair below. Several small diversions 

above station for irrigation.

Ratine table, water year 1948-49, except period of ice effect 

(gage height, In feet, and discha 

(Shifting-control method used Apr

(gage height, In feet, and discharge, In second-feet) 

. 9-29, Sept. 12-30)

2.7

2.8

2.9

3.0

3.1

3.3 

3.5 

3.8 

4.2

75

120

205

310

5.0 

5.4 

5.7

460

655

820

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.2 

5.8 

5.0 

4.5 

4.2

4.1 

4.0 

4.0 

4.0 

4.0

4.0 

4.0 

4.0 

4.0

4.2

4.7 

5.8 

7.0 

8.4 

9.0

9.4 

9.6 

9.8 

9.0 

10

10 

10 

10 

9.7 

9.7 

9.7

Nov.

9.7 

10 

10 

10 

10

10 

10 

10

11 

11

11 

11 

11 

11 

11

12 

12 

12 

12 

13

13 

13 

13 

13 

13

13 

13 

12 

12 

13

Dec.

13 

13 

13 

14 

14

15 

16 

17 

18 

18

19 

*21 

20 

19 

18

18 

18 

18 

18 

18

18 

18 

18 

19 

19

19 

18 

18 

18 

18 

18

Jan.

18 

18 

18 

18 

18

19 

19 

19 

19 

19

18 

18 

19 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

19 

19

20 

20 

20 

21 

21 

21

Feb.

20 

20 

20 

21 

22

22 

22 

22 

22 

24

24 

24 

25 

26 

26

26 

27 

27 

27 

27

27 

27 

27 

27 

26

24 

24 

24

Month

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lender year 194£ .......

ter year 1948-49 .......................

Mar.

24 

23 

22 

22 

22

20 

20 

20 

20 

20

19 

19 

19 

19 

19

19 

18 

18 

18 

18

18 

17 

17 

17 

17

16 

16 

16 

16 

16 

16

Apr.

16 

16 

16 

16 

16

16 

16 

16 

*16 

16

17 

18 

21 

20 

22

22 

23 

23 

25 

26

29 

31 

36 

39 

48

57 

74 

90 

108 

136

1 Secondfoot-days

207.8 

345.7 

539

30,879.4

601 

680 

581 

1,025 

11,508 

15,357 

6,223 

1,240 

563

38,870.5

May

158 

168 

166 

174 

178

176 

168 

166 

162 

166

180 

210 

260 

345 

420

560 

804 

868 

814 

699

565 

420 

376 

307 

289

283 

307 

412 

487 

585 

635

Maximum

10

13 

21

760

21 

27 

24 

136 

868 

826 

348 

61 

28

868

June

645 

570 

456 

376 

324

283 

280 

310 

380 

525

666 

814 

826 

787 

726

666 

600 

540 

535 

590

605 

565 

496 

448 

392

362

362 

412 

432 

384

July

348 

310 

298 

298 

307

320 

334 

324 

3O4 

280

260 

235 

225 

215 

202

195 

185 

176 

172 

164

150 

138 

124

111 

104

93 

81 

87 

66 

61 

56

Minimum

4.0 

9.7 

13

4.0

18 

20 

16 

16 

158 

280 

56 

25 

13

4.0

Aug.

52 

49 

48 

48 

48

49 

53 

56 

61 

61

58 

54 

50 

45 

41

39 

38 

34

31 

29

27 

26 

25 

26 

26

28 

29 

27 

26 

28 

28

Mean

6.70 

11.5 

17.4

84.4

19.4 

24.3 

18.7 

34.2 

371 

512 

201 

40.0 

18.8

106

Sept.

27 

27 

26 

28 

28

26 

25 

23 

20 

20

19 

19 

18 

16 

16

16 

16 

16 

15 

15

15 

15 

15 

15 

15

15 

14 

13 

15 

15

Runoff In 

acre-feet

412 

686 

1,070

61,240

1,190 

1,350 

1,150 

2,030 

22,830 

30,460 

12,340 

2,460 

1,120

77,100

Peak discharge (base, 550 sec.-ft.).- May 18 (1 p.m.) 892 sec.-ft.; June 1 (1 a.m.) 655 sec.-ft. 

June 13 (1 a.m7; 844 sec.-ft.

* Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by ice Dec. 15 to Jan. 19. Mo gage-height record Oct. 

1-26, Jan. 20 to Apr. 8 (stage-discharge relation affected by Ice during part of periods); diecharj 

computed on basis of discharge measurement made Oct. 14, weather records, and records for stations 

on nearby streams.
186 OREEN RIVER BASIN

Fall Creek near Pinedale, Wyo.

Location.- Water-stage recorder, lat. 42°51', long. 109°43', in sec. 2, T. 33 N., R. 108 

W., at Mclntosh Ranch, half a mile downstream from Meadow Creek, 3 miles downstream 

from Burnt Lake, and 8 miles east of Pinedale.

Drainage area.- 37.2 square miles.

Records available.- October 1938 to September 1949 (no winter records 1943, 1944). May 

1904 to October 1905 at site l| miles downstream, published as Fall Creek at Fayette.

Extremes.- Maximum discharge during year, 325 second-feet June 11 (gage height, 7.29 feet); 

minimum daily, 0.4 second-foot Nov. 4-9.

1904-5 1938-49: Maximum discharge, 546 second-feet June 22, 1943 (gage height, 

7.83 feet); minimum daily, 0.1 second-foot Sept. 21, 1942.

Remarks.- Records good above 20 second-feet and fair below. Practically no diversion 

above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0.7 

.7 

.7 

.8 

.8

.9 

.8 

.8

.8 

.7

.7 

.6 

.6 

.5 

.9

1.2 

.9 

.8 

.8 

.7

.7 

.6 

.6 

.6 

.6

.6

.6 

.6 

.6 

.6 

.5

Nov.

0.5 

.5 

.5 

.4 

.4

.4 

.4 

.4 

.4

.5

.5 

.6 

.6 

.6 

.7

.7 

.7 

.8 

.6 

.7

.8

1.0 

1.3 

1.1 

.9

.9 

.8 

.8 

.6 

.8

Dec.

0.7 

.8 

.8 

.9 

.9

1.1 

1.3 

1.4 

1.4 

1.5

1.6 

*1.8 

1.9 

2.1 

2.0

1.9 

1.8 

1.8 

1.9 

1.9

1.9 

2.0 

2.0 

1.9 

1.9

1.9 

2.0 

2.1 

2.1 

2.2 

2.2

Jan.

2.5 

2.3 

2.3 

2.3 

2.5

2.8 

2.8 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

2.8 

3.0

2.8 

2.8 

*2. 8 

2.6 

2.6

2.6 

2.6 

3.0 

3.1 

3.1

3.2 

3.5 

3.6 

3.6 

3.6 

3.6

Feb.

3.5 

3.5 

3.5 

3.5 

3.6

3.8 

3.9 

3.9 

4.0 

4.6

4.9 

4.9 

4.8 

5.1 

5.4

5.9 

6.2 

6.8 

7.O 

7.0

7.0 

7.0 

7/0 

7.0 

7.0

6.8 

6.5 

6.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May. 

June 

July 

Augu 

Sept

Wa

ber. ....................................

mber. ...................................

lendar year 1946 

ary

.......................

uary. ...................................

h.. .....................................

1. ......................................

St........... ...........................

ter year 1948-49 .......................

Mar.

6.5 

6.5 

6.0 

5.9 

5.9

5.7 

5.6 

5.6 

5.4 

5.4

5.4 

5.2 

5.2 

5.1 

5.1

5.1 

5.1 

5.1 

5.1 

5.1

5.1 

4.6 

4.6 

4.9 

4.5

4.6 

4.5 

4.5 

4.3 

4.3 

4.2

Apr.

4.3 

4.5 

4.2 

4.5 

4.5

4.5 

4.6 

4.5 

4.3 

4.6

4.9

5.2 

5.2 

4.9 

5.4

5.6 

5.9 

6.0 

6.8 

7.3

8.2 

9.8 

11 

14 

18

25 

33 

45 

62 

78

Secondfoot-days

22.0 

19.9 

51.7

13,125.4

89.2 

150.6 

160.1 

405.7 

4,896 

5,664 

1,818 

168.1 

30.0

13,475.3

May

87 

88 

87 

92 

92

88 

85 

84 

85 

89

96 

117 

152 

187 

216

250 

290 

293 

266 

221

183 

151 

132 

113 

120

137 

167 

211 

239 

241 

237

Maximum

1.2 

1.3 

2.2

430

3.6 

7.0 

6.5 

78 

293 

304 

114 

14 

1.5

304

June

207 

169 

139 

115 

106

104 

124 

167 

211 

256

304 

301 

271 

256 

235

217 

200 

189 

227 

256

225 

194 

178 

161 

143

142 

151 

150 

139 

127

July

114 

107 

104 

1C4 

104

103 

97 

91 

85 

79

73 

68 

63 

59 

56

52 

48 

46 

45 

42

38 

36 

33 

30 

27

23 

21 

20 

18 

16 

16

Minimum

0.5 

.4

.7

.4

2.3 

3.5 

4.2 

4.2 

84 

104 

16 

1.6 

.6

.4

Aug.

14 

14 

13 

11 

9.8

9.0 

8.8 

7.8 

6.8 

6.3

5.9 

5.9 

5.5 

4.9 

3.9

3.8 

3.4 

3.2 

3.2 

2.8

2.8 

2.8 

3.0 

2.9 

2.4

2.3 

1.9 

1.8 

1.8 

1.8 

1.6

Mean

0.71 

.66 

1.67

35.9

2.88 

5.38 

5.16 

13.5 

158 

189 

58.6 

5.42 

1.00

36.9

Sept.

1.3 

1.3 

1.5 

1.4 

1.2

.9 

.9

.9 

1.0 

1.2

1.4 

1.5 

1.2 

1.0 

.9

.9 

.9 

.9 

1.0 

.9

.8 

.6 

.6 

.7 

.8

.8 

.8 

.8 

.8

1.1

Runoff In 

acre-feet

44 

39

103

26,040

177 

299 

318 

805 

9,710 

11,230 

3,610 

333 

60

26,730

(base, 200 sec. -ft.).- May 18 (5 p.m.) 305 sec. -ft.; May 30 (12: 

.m.; 3Z5 sec. -ft.; June 20 (8 a.m.) 260 sec. -ft.

Peak discharg

ft.; June 11 (5 p.m.; 3Z5 sec. -ft.; June 20 (8 . 

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Dec. 16 to Jan. 5.

30 a.m.) 246 sec.-
GREEN RIVER BASIN 187

Boulder Creek below Boulder Lake, near Boulder, Wyo.

Location.- Water-stage recorder, lat. 42°50', long. 109°43', in sec. 14, T. 33 N., R. 108 

W., 1 mile downstream from outlet of Boalder Lake and 5 miles north of Boulder.

Drainage area.- 130 square miles.

Records available.- October 1938 to September 1949 (no winter records 1943, 1945). April 

19U4 to October 1906, May 1915 to October 1924 and May 1931 to November 1932 at site 

4 miles downstream; records not equivalent.

Extremes.- Maximum discharge during year, 1,660 second-feet June 12 (gage height, 5.10 

feet)'; minimum daily, 3.5 second-feet Oct. 7.

1338-49: Maximum discharge, 2,440 second-feet June 22, 1943 (gage height, 5.96 feet); 

no flow Nov. 28, 1939 to Apr. 15, 1940, Nov. 18, 1944.

Remarks.- Records excellent above 250 second-feet and good below except those for periods 

of ice effect or no gage-height record, which are fair. Plow slightly regulated by 

Boulder Lake (capacity, 11,000 acre-feet). No diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.0 

5.2 

5.2 

5.2 

4.2

3.8 

3.5 

3.8 

4.2 

4.2

4.2 

4.6 

10 

10 

12

13 

13 

12 

12 

12

12 

12 

12 

12 

12

12 

13 

13 

13 

13 

13

Nov.

13

13 

13 

12 

4.6

12 

13 

12

12 

13

13 

*13 

13 

13

12

12 

12 

14 

14 

14

IS 

15 

17 

17 

21

20 

24 

24 

24

27

Dec.

29 

31 

26 

21 

24

24 

24 

27 

28 

26

27 

28 

29 

28 

a26

a23 

a22 

a23 

a24

26

27 

26 

26 

26 

25

25 

26 

*26 

23 

19 

17

Jan.

16 

14 

15 

16 

17

17 

17 

17 

16 

16

16 

16 

18 

18 

18

16 

16 

16 

*16 

17

18

20

19 

18

19 

20 

21 

23 

23 

23

Feb.

23 

21 

21 

21 

22

23 

22 

22 

22 

24

27 

25 

23 

22 

23

24 

24 

25 

28 

27

a25 

a22 

a29 

a25 

a27

*29 

29 

29

Month

Ooto 

Nove 

Deee

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

29 

29 

27 

26 

26

24 

22 

22 

20 

20

20 

20 

20 

20 

20

19 

19 

19 

19 

18

19 

17 

17 

18 

18

19 

17 

17 

16 

16 

16

Apr.

16 

15 

16 

15 

15

16 

16 

16 

17

17

18 

19 

*20

21 

23

23 

24 

25 

27 

30

32 

35 

39 

45 

55

64 

57 

19 

20 

20

Secondfoot-days

285.1 

449.6 

782

59,215.8

554 

684 

629 

775 

13,201.5 

31,196 

12,034 4,922' 

1,612

67,124.2

May

22 

23 

24 

24 

24

24 

24

24 

21 

17

9.5 

9.0 

117 

149 

290

518 

723 

884 

938 

884

789 

690 

615 

567 

540

572 

662 

796 

962 

1,120 

1,140

Maximum

13 

27 

31

1,830

23 

29 

29 

64 

1,140 

1,640 

635 

248 

108

1,640

June

1,080 

932 

784 

662 

590

558 

572 

664 

938 

1,280

1,560 

1,640 

1,600 

1,540 

1,420

1,310 

1,190 

1,080 

1,260 

1,440

1,320 

1,150 

1,040 

920 

800

756 

818 

824 

767 

701

July

635 

600 

572 

572 

595

605 

595 

572 

536 

495

454 

431 

409 

387 

370

349 

326 

312 

306 

302

286 

270 

261 

261 

264

264 

261 

238 

74 

181 

251

Minimum

3.5 

4.6 

17

3.3

14 

21 

16 

15 

9.0 

558 

74 

60 

28

3.5

Aug.

248 

238 

235 

232 

226

219 

216 

206 

200 

197

190 

184 

157 

144 

141

138 

133 

85 

60 

133

136 

133 

131 

128 

126

121 

119 

115 

113 

110 

108

Mean

9.20 

15.0 

25.2

162

17.9 

24.4 

20.3 

25.8 

426 

1,040 

388 

159 

53.7

184

Sept.

108 

106 

104 

101 

97

88 

82 

70 

58 

56

52 

50 

49 

46 

45

43 

41 

39 

37 

36

34 

33 

32bi

30

29 

28 

28 

30 

29

Runoff In 

acre-feet

565 

892 

1,550

117,400

1,100 

1,360 

1,250 

1,540 

26,180 

61,880 

23,870 

9,760 

3,200

133,100

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records.

Note.- Stage-discharge relation affected by ice Dec. 20 to Feb. 20, Feb. 26 to Mar. 2.
188 GREEN RIVER BASIN 

East Fork near Big Sandy, Wyo.

Location.- Water-stage recorder, lat. 42°40', long. 109°25', in sec. 7, T. 31 N., R. 105 W. 

1 mile downstream from Jim Creek and 4 miles northeast of Big Sandy.

Drainage area.- 79.2 square miles.

Records available.- October 1938 to September 1949. May 1916 to September 1917 and May 

1921 to November 1923 at site 2 miles downstream, published at East Fork at East Fork 

Canal. No winter records 1916-17, 1921-23, 1941-45.

Extremes.- Maximum discharge during year, 1,390 second-feet June 19 (gage height, 6.64 

Feet), from rating curve extended above 820 second-feet; minimum, 3.7 second-feet Sept. 

22 (gage height, 2.67 feet).

1916-17, 1921-23, 1938-49: Maximum discharge, 1,440 second-feet May 27, 1942 (gage 

height, 6.73 feet), from rating curve extended above 820 second-feet; minimum discharge 

observed, 1.2 second-feet Jan. 4, 1940 (discharge measurement), but may have been less 

during period of ice effect.

Remarks.- Records good above 20 second-feet and fair below except those for period of no 

gage-height record, which are poor. No diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

, 15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2b 

29 

30 

31

Oct.

6.8 

6.8 

6.5 

6.5

7.4

8.2 

8.8 

8.8 

9.2 

8.8

8.5 

8.2 

*7.7 

7.9 

9.2

14 

12 

12 

12 

12

12 

12 

11 

11 

11

11 

9.9 

9.9

o.Z 

11 

9.5

Nov.

9.5 

10 

b8.5 

b8.5 

b8.5

blO 

bll 

blO 

blO 

bll

*bll 

12 

12 

12 

12

12 

11 

11 

11 

13

12 

12 

12 

12 

11

10 

10 

10 

10 

10

Dec.

11

Jan.

11

Feb.

12

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Peak discharge (base, 700 sec. -ft. 5.- May ]

June 11 (6 a.m.) 986 sec. -ft.; June 19 (7 a.j

Mar.

13

Apr.

13 

13 

13 

13 

14

14 

14 

14 

14 

14

16 

21 

19 

17 

18

20 

24 

28 

36 

35

33 

51 

91 

110 

120

140 

160 

180 

195 

*172

Secondfoot -days

299.1 

323.0 

341

29,061.7

341 

336 

403 

1,622 

12,934 

15,189 

4 t588 

665 

312.2

37,353.3

May

164

162 

192 

215

192

162 

168 

190 

208 

265

292 

412 

578 

680 

700

725 

650 

600 

524 

447

370 

314 

280 

295 

380

546 

635 

640 

700 

680 

568

Maximum

14 

13

1,140

195 

725 

1,110 

420 

39 

15

1,110

5 (1 a.m.) 772 sec. -ft. 

i.) 1,390 Sec. -ft.

June

424 

331 

280 

250 

265

328 

460 

635 

740 

778

866 

740 

866 

675 

586

586

438 

542 

1,110 

715

519 

483 

380 

304 

304

380 

376 

286 

289 

253

Minimum

July

241 

247 

256 

420 

359

307 

256 

215 

188 

172

175 

160 

150 

146 

134

123 

123 

107 

98 

93

81 

68 

62 

59 

56

53 

50 

50 

50 

47 

42

6.5 

8.5

4.4

13 

162 

250 

42 

12 

4.2

4.2

Aug.

39 

36 

34 

32 

32

31 

29 

29 

28 

29

27 

24 

22 

20 

20

18 

17 

16 

15 

14

14

13 

12 

15 

16

15 

14

13 

13 

14 

14

Mean

9.65 

10.8 

11

79.4

11 

12 

13 

54.1 

417 

506 

148 

21.5 

10.4

102

Sept.

13 

14 

13 

14 

14

15 

14 

13 

13 

12

13 

15 

14 

13 

12

11 

10 

9.6 

8.8 

7.1

6.3 

4.2 

5.0 

5.0 

5.2

5.2 

5.7 

5.7 

7.4 

14

Runoff In 

acre-feet

593 

641 

676

57,640

676 

666 

799 

3,220 

25,650 

30,130 

9,100 

1,320 

619

74,090

; May 29 (l:30 a.m.) 794 sec. -ft.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- Ho gage-height record Nov. 12 to Apr. 29 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of weather records and records for nearby stations.
GREEN RIVER BASIN 189

Silver Creek near Big Sandy, Wyo.

Location.- Water-stage recorder, lat. 42°45', long. 109°31', In sec. 17, T. 32 N., R. 106 

W., at Miller Ranch, 1 mile downstream from South Fork, 8 miles northwest of Big Sandy, 

and 11 miles east of Boulder.

Drainage area.- 45.4 square miles.

Records available.- October 1938 to September 1949 (no winter records 1942-45).

Extremes.- Maximum discharge during year, 467 second-feet May 28 (gage height, 5.86 feet); 

no now Oct. 1-5, 11-13.

1938-49: Maximum discharge, 720 second-feet June 9, 1947, fpom rating curve extended 

above 450 second,-feet; maximum gage height, 7.04 feet May 26, 1942; no flow at times in 

most years.

Remarks - Records good above 15 second-feet and fair below except those for periods of no 

gage-height record, which are poor. One small- diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0

o

0

.1 .1 .1 

.1 .1

o

0

o .1

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Nov.

0.3 

.4 

.4 

.4 

.3

.3 

.3 

.2 

.2 

.2

*.2

> .2

Dec.

. 0.4

Jan.

> 0.8

Feb.

> 2.0

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

1............ ...........................

ter year 1948-49 ...............

Mar.

 4.0

Apr.

4,5 

4.5 

4.5 

4.5 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.6 

6.4 

6.0 

*5.8 

8.0

10 

12 

16 

15 

15

15 

15 

16 

16 

20

26 

32 

40 

48 

43

May

37 

39 

61 

94 

88

74 

74 

71 

90 

132

143 

214 

302 

352 

386

376 

372 

356 

342 

286

228 

207 

182 

186 

244

320 

352 

382 

421 

408 

348

foT-Says »" 

5.7 0.3 

7.0 

12.4

13,679.7 640

24.8 

56.0 

124.0 

418.8 48 

7,167 421 

5,765 338 

834.9 69 

42.6 4.4 

5.3 .3

14,463.5 421

June

274 

214

176 

165 

172

196 

223 

268 

308 

338

338 

308 

306 

242 

194

172 

150 

176 

332 

238

170 

133 

111 

92 

78

80 

93 

80 

74 

64

July

53 

43 

46 

69 

57

53 

45 

39 

34 

32

30 

24 

21 

18 

32

38 

33 

29 

26 

23

18 

14 

12 

10 

8.0

6.6 

5.9 

5.1 

4.4 

3.3 

2.6

Aug.

2.3 

1.8 

1.8 

4.4 

4.0

3.7 

3.0 

2.6 

2.6 

2.6

2.0

1.4 

1.1 

1.0 

.9

.7 

.6 

.6 

.7 

.5

.4 

.4 

.4 

.5 

.5

.5 

.4 

.3 

.3 

.3 

.3

Minimum Mean

0 0.18 

.23 

.4

0 37.4

.8 

1 2.0 

4.0 

4.5 14.0 

37 231 

64 192 

2.6 26.9 

.3 1.37 

.1 .18

0 , 39.6

Sept.

0.2 

.2 

.2 

.2 

.2

.3 

.2 

.2 

.2 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.2 

.2

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.3

Runoff In 

acre -feet

11 

14 

25

27,130

49 

111 

246 

831 

14,230 

11,430 

1,660 

84 

11

28,690

Peak discharge (base, 380 see. -ft.).- May 15 (9 p.m.) 447 sec. -ft.; May 28 (10 p.m.) 467 see. -ft.;

June 19 (3:30 a.m.)1 392 sec. -ft. 

* Winter discharge measurement made on this day. 

Note.- No gage-height record Oct. 1-13, Nov. 12 to Apr. 17 (stage-discharge relation affected by 

Ice during most of period); discharge computed on basis of 1 discharge measurement, weather records, 

and records for stations on nearby streams.
190 GREEN RIVER BASIN

North Piney Creek near Mason, Wyo.

Location. - Water-stage recorder, lat. 42°40' , long. 110°21', in sec. 19, T. 31 N., R. 113 

W. , 4 miles west of Mason.

Drainage area.- 58 square miles.

Records available.- May 1915 to October 1916, October 1931 to September 1949 (no winter 

records' most years).

Extremes.- Maximum discharge during year, 317 second-feet June 13 (gage height, 3.27 feet); 

minimum not determined, probably occurred during period of no gage-height record.

1915-16, 1931-49: Maximum discharge, 613 second-feet June 19, 1916 (gage height, 

3.93 feet), from rating curve extended above 450 second-feet; minimum not determined, 

probably occurred during winter.

Remarks.- Records good May 1 to Sept. 15, remainder fair except those for periods of no 

gage-height record, which are poor. Several small diversions above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

? 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

30

21 

22 

33 

24 

35

26 

27 

28 

29 

30 

31

Oct.

19 

18 

18

17 

17

17 

17 

17 

17 

19

*20 

19 

19 

18 

20

20 

18 

18 

17 

17

17 

17 

17 

16 

17

17 

17 

18 

18 

18 

17

Nov.

16 

16 

16 

16 

16

16 

16 

16 

16 

17

17 

*17 

17 

18 

18

17 

16 

16 

16 

16

16 

IB 

16 

15 

14

13 

12 

13 

13

13

Dec.

 15

Jan.

14

Feb.

 13

Month

Ooto 

Nove

Dace

Ca

Janu 

Febr 

Harp 

Apr!

Wtttv

June 

July 

Augu 

Sept

Wa

ber .......... ...........................

lendar year 1948 

ary

h.... ...................................

ter year 194&-49 ...............

Mar.

 14

Apr.

16 

17 

18 

20 

19

*18 

16 

18 

19 

19

22 

26 

28 

20 

20

22 

25 

32 

33 

35

33

47 

61 

68

77

76 

78 

90 

88 

71

Secondfoot-clays

551

470 

465

19,275

434 

364 

434 

1,132 

3,772 

6,299 

2,309 

1,071 

734

18,035

May

62 

68 

90 

90 

77

69 

61 

63 

69 

83

96 

103 

113 

123 

140

153 

156 

156 

136 

136

124 

116 

113 

107 

109

123 

155 

191 

230 

232 

230

Maximum

20 

18

364

90 

232 

302 

131 

44 

32

303

June

204 

178 

151 

137 

139

134 

144 

178 

228 

267

284 

298 

303 

276 

260

254 

243 

251 

284 

260

232 

222 

208 

191 

180

182 

173 

156 

147 

136

July

128 

121 

123 

131 

123

110 

99 

86 

91 

91

87 

84 

81 

75 

71

68 

63 

61 

61 

54

52 

49 

48 

45 

44

44 

46 

45 

44 

43 

41

Minimum

16 

13

-

16

61 

134 

41 

28 

20

.

Aug.

40 

41 

41 

39 

39

38 

28 

39 

36 

44

35 

35 

32

30 

30

29 

29 

29 

29 

29

33 

40 

40 

41 

39

36 

34 

33 

32 

31 

30

Mean

17.8 

15.7 

15

5Z.1

14 

13 

14 

37.7 

132 

210 

74.5 

34.5 

24.5

49.4

Sept.

32 

29 

29 

30 

29

27 

36 

26 

26 

26

28 

32 

27 

26 

25

24 

23 

22 

23 

21

20 

20 

20 

20 

20

20 

20

20 

21 

23

Runoff In 

acre-feet

1,090 

932 

922

38,210

861 

722 

861 

2,250 

7,480 

12,490 

4.58O 

3,120 

1,460

35,770

Peak dlecharge [base, 220 sec.-ft.).- May 39 (10 a.m.) 245 sec.-ft.; June 13 (6 a.m.) 317 sec.-ft.

* Winter discharge measurement made on this day.

Mote.- No gage-height record Oct. 5-10, Nov. 1 to Apr. 5 Cstage-dlscharge relation affected by Ice 

during most of period); discharge computed on basis of 1 discharge measurement, recorded range in 

stage, weather records, and records for stations on nearby streams.
GREEN RIVER BASIN 191

Middle Piney Creek below South Fork, near Big Piney, Wyo.

Location.- Water-stage recorder, lat. 42°36', long. 110°28', in sec. 7, T. 30 N., R. 114 

W. , 1 mile downstream from South Fork and 18 miles northwest of Big Piney.

Drainage area.- 34.3 square miles.

Records available.- July 1939 to September 1949 (no winter records ^1943, 1946).

Extremes.- Maximum discharge during year, 111 second-feet June 18 (gage height, 5.87 

feet); minimum not determined, occurred during period of no record.

1939-49: Maximum discharge, 254 second-feet June 29, 1943 (gage height, 6.33 feet) 

from rating curve extended above 190 second-feet; minimum not determined, occurred 

during period of Ice effect.

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Flow regulated by Middle Piney Lake (usable capacity, 4,200 acre-feet).

Discharge, in second-feet , water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.8 

8.4 

8.4 

8.1 

8.4

7.8 

7.8 

6.7 

7.4 

7.0

7.4 

7.0 

7.0 

7.0 

7.4

7.4 

7.0 

7.0 

6.7

6.7

6.7 

7.0 

6.7 

6.7 

6.7

7.0 

7.4 

7.4 

7.0 

6.7 

6.7

Nov.

6.7 

7.0 

7.0 

6.4 

6.0

6.0 

6.4 

5.2 

5.4 

6.4

6.4 

6.0 

6.0 

6.4 

6.5

6.2 

5.8 

5.8 

5.8 

6.0

6.0 

6.0 

5.8 

5.6 

5.0

5.0 

4.9 

5.0 

5.0 

5.0

Dec.

5.5

Jan.

 5.0

Feb.

' 4.5

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

' 5.0

Apr.

5.4 

5.6 

5.8 

6.0 

6.0

5.6 

5.6 

5.8 

6.0 

6.2

6.4 

6.6 

6.6 

6.4 

6.4

6.6 

6.8 

7.0 

6.4

6.4

6.7 

9.2 

11

13 

13

12 

12 

14 

14 

12

Secondfoot-days.

225. 4 

176.7 

170.5

7,910.0

155.0 

126.0 

155.0 

240.5 

1,1*0 

2,256 

2,^38 

6/0 

350.3

7,703.4

May

12 

13 

16 

17 

16

14 

14 

15 

16 

19

22 

24 

26 

27 

34

44 

47 

47 

48 

48

47 

48 

49 

48 

47

48 

55 

65

72 

72 

70

Maximum

8.8 

7.0

121

14 

72 

97 

90 

35 

14

97

June

65 

58 

53 

51 

51

46 

47 

52 

62 

70

78 

85 

92 

94 

90

91 

91 

94 

97 

96

91 

85 

79 

76 

76

84 

79 

76 

74 

73

July

70 

79 

90 

90 

86

85 

82 

78 

78 

73

76 

79 

80 

78 

76

73 

70 

67 

62 

61

58 

55

52 

50 

47

45 

43 

41 

40 

38 

36

Aug.

35

34 

32 

31 

31

29 

28

26 

28 

27

25 

24 

22 

20 

20

18 

17 

17 

17 

17

17 

16 

16 

16 

16

16 

15 

15 

15 

14 

16

Sept.

14 

14 

13 

13 

13

12 

12 

13 

14 

14

14 

14 

13 

13 

13

12 

12 

12 

11 

10

9.5

8.8 

8.8 

8.8 

9.5

9.2 

9.2 

9.5 

11 

10

Minimum Mean "^

6.7 7.27 447 

4.9 5.89 350 

5.5 338

21.6 15,690

5.0 307 

4.5 250 

5.0 307 

5.4 8.02 477 

12 36.8 2,260 

46 75.2 4,470 

36 65.7 4,040 

14 21.6 1,330 

8.8 11.7 695

21.1 15,270

Peak discharge (base, 90 sec. -ft.).- June 18 (10 p.m.) Ill sec. -ft.

and records for stations on nearby streams.
192 GREEN RIVER BASIN

Labarge Creek near Viola, Wyo.

Location.- Water-stage recorder, lat. 42°13', long. 110°19', in sec. 19, T. 26 N. , R. 113 

W., a quarter of a mile upstream from the narrows, 2? miles downstream from Spring Creek, 

4| miles southeast of Viola, and 7 miles southwest of Labarge.

Drainage area-.- 172 square miles.

Records available.- October 1940 to September 1949 (dispontinued). April to September 1913 

and April 1915 to September 1916 at site three-quarters of a mile downstream, published 

as Labarge Creek near Labarge. April 1932 to August 1939 at site 7 miles downstream, 

published as Labarge Creek near Labarge; records not equivalent.

Extremes.- Maximum discharge during year, 459 second-feet May 18 (gage height, 5.37 feet); 

minimum daily, 39 second-fee_t Feb. 14, Sept. 6, 7.

1913,1915-16, 1940-49: Maximum discharge, 585 second-feet May 11, 1947; maximum gage 

height, 6.01 feet May 5, 1943; minimum daily discharge, 4 second-feet July 5-14, 1915.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Several small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

63 

62 

62 

63 

67

67 

68 

68 

68 

67

67 

64 

63 

63 

64

68 

65 

65 

65 

64

63 

63 

62 

62 

63

62 

63 

63 

63 

61 

61

Nov.

64 

64 

65 

63 

61

63 

65 

b61 

b63 

65

65 

*63 

60 

57 

55

52 

49 

47 

49

52

50 

47 

48 

50 

49

48 

47 

45 

45 

47

Dec.

51 

60 

58 

56 

54

54 

55 

56 

58 

60

61 

62 

59 

57 

56

56 

54 

54 

56 

58

56 

54 

49 

44 

41

41 

40 

42 

44 

47 

49

Jan.

48 

48 

46 

45 

46

47 

48 

49 

47 

45

45 

47 

49 

49 

47

47 

50 

50 

50 

51

53 

54 

54 

50 

47

44 

44 

44 

45 

45 

45

Feb.

44 

44 

44 

44 

45

45 

45 

45 

45

46

46 

43 

40 

39 

41

43 

44 

44 

44 

46

48 

48 

48 

48 

48

48 

48 

48

Month

Octo 

Move 

Dece

Ca

janu 

Pebr 

Marc 

Apr!

MA v

June 

July 

Augu 

Sept

Wa

lendar year 1948 

apy

ter year 1948-49 .......................

Mar.

48 

50 

50 

50 

50

47 

47 

47 

48 

50

52 

52 

52 

52 

54

58 

58 

58 

62 

62

*62 

62 

61 

59 

58

59 

58 

53 

63 

62 

59

Apr.

62 

62 

63 

68 

70

73 

76 

82 

88 

85

88 

96 

95 

92 

85

86 

96 

106 

115 

121

109 

121 

156 

172 

184

176 

186 

218 

222 

184

Secondfoot-days

1,989 

1,659 

1,642

33,740

1,479 

1,261 

1,703 

3,437 

8,647 

4,863 

2,254 

1,436 

1,399

31,769

May

152 

152 

205 

240 

195

165 

150 

156 

172 

218

240 

265 

280 

288 

353

401 

420 

417 

389 

383

341 

308 

299

275 

262

270 

278 

350 

371 

347 

305

Maximum

68 

65 

62

491

54 

48 

63 

222 

420 

265 

103 

55 

61

420

June

265 

198 

168 

161 

180

170 

190 

190 

190 

192

202 

202 

198 

182 

170

156 

156 

163 

215 

157

138 

128 

121 

118 

114

118 

121 

109 

103 

88

Minimum

July

85 

82 

96 

103 

99

86 

79 

76 

76 

76

71 

73 

69 

73 

78

82 

78 

75 

81 

73

67 

65

63 

61 

57

56 

56 

58 

55 

52 

53

61 

45 

40

37

44 

39 

47 

' 62 

150 

88 

52 

40 

39

39

Aug.

53 

52 

53 

51 

53

53 

50 

48 

51 

55

50 

49 

48 

46 

44

44 

42 

43 

44 

43

43 

42 

43 

46 

44

42 

41 

41 

41 

41 

40

Mean

64.2 

55.3 

53.0

92.2

47.7 

45.0 

54.9 

115 

279 

162 

72.7 

46.3 

46.6

87.0

Sept.

40 

40 

41 

40 

40

39 

39 

40 

40 

42

43 

42 

42 

42 

42

41 

41 

41 

44 

49

49 

52 

58 

58 

59

59 

58 

58 

59

61

Runoff in 

acre-feet

3,950 

3,290 

3,260

66,940

2,930 

2,500 

3,380 

6,820 

17,150 

9,650 

4,470 

2,850 

2,770

63,020

Peak discharge (base, 510 sec.-ft.).- May 18 (9 a.m.) 459 sec.-ft.; May 29 (9 a.m.) 586 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 13 to' Mar. 20 (stage-discharge relation affected by Ice during 

most of period)) discharge computed on basis of weather records and records for stations on nearby 

streams.
GREEN RIVER BASIN 193

Pontenelle Creek near Fontenelle, Wyo.

Location.- Water-stage recorder, lat. 42°06', long 110°13', in sec. 3, T. 24 N., R. H3 

w., b miles west of Pontenelle.

Drainage area.- 224 square miles.

Records available.- May 1915 to September 1919, October 1931 to September 1949.

Average discharge.- 21 years (1916-19, 1931-49), 58.9 second-feet.

Extremes.- Maximum discharge during year, 456 second-feet June 6 (gage height, 2.89 feet); 

minimum daily, 18 second-feet July 19.

1915-19, 1931-49: Maximum discharge observed, 922 second-feet Apr. 19, 1938 (gage 

height, 4.00 feet, site and datum then in use), from rating curve extended above 380 

second-feet; no flow Aug. 1-5, Aug. 23 to Sept. 15, 1934, June 27-30, Sept. 18-27, 

1940.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Rating tables, water year 1948-49, except periods of ice effect

(gage height, In feet, and diacharge, In second-feet)

(Shifting-control method used July 28 to Aug. 2)

Oct. 1 to Dec. 31, 

Aug. 1 to Sept. 30

1.0 15

1.1 24

1.2 35

1.3 47

Jan. 1 to July 31

1.0

1.1

1.2

1.3

1.6 98

2.0 176

2.3 255

2.6 355

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

24 

24 

27 

27 

30

33 

34 

33 

32 

31

31 

31 

28 

30 

*30

31 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30

30 

31 

31 

30

Nov.

28 

31 

36 

33 

30

28 

27 

26 

27 

28

29 

30 

28

27 

26

25 

23 

23 

24 

25

25 

23 

24 

25 

24

23 

23 

*22 

24 

24

Dec.

24 

30 

29 

28 

27

26 

27 

28 

28 

*29

29 

30 

29 

28 

27

27 

27 

26 

26 

28

27 

26 

23 

21 

20

20 

19 

21 

22 

23 

23

Jan.

24

23 

22 

22 

23

23 

*24 

25 

24

23

23 

24 

26 

25 

24

24 

25 

25 

25 

26

*28 

28 

28 

26 

24

22 

22 

22 

23 

22 

23

Feb.

23 

23 

23 

23 

24

24 

24 

24 

24 

25

25 

23 

21 

20 

22

24 

26

26 

26 

27

28 

*28 

28 

28 

28

28 

28 

28

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

wa

lendar year 194£

ter year 1948-49 .......................

Peak discharge (base, 150 sec. -ft.). Apr.

May 18 (10 p.m.; 313 sec. -ft.; June 6 (10:3C 

* Winter discharge measurement made on thl

Mar.

29 

29 

29 

29 

29

27 

27 

27 

*27 

28

30 

30 

30 

30 

31

33 

33 

35 

37 

38

36 

35 

37 

38 

35

32 

31 

32 

34 

35 

34

Apr.

35 

37 

36 

47 

47

55 

64

72 

*74 

80

82 

98 

98 

93 

80

79 

102 

126 

144 

166

142 

156 

205 

234 

240

215 

195 

193 

200 

183

Seoondfoot-days

928 

791 

798

22,538

748 

701 

987 

3,578 

6,168 

4,919 

934 

870 

726

22,148

24 (2 p.m.) 

p.m.) 456 s 

s day.

May

150 

142 

166 

200 

195

166 

150 

140 

144 

150

168 

190 

212 

200 

193

218 

249 

279 

285 

252

240 

218 

205 

198 

188

188 

195 

205 

225 

237 

220

Maximum

34 

36 

30

313

1

348

June

212

200 

176 

172 

231

249 

348 

240 

212 

198

188 

215

193 

164 

152

140 

130 

142 

249 

162

132 

112 

105 

98 

90

85 

95 

90 

79 

60

July

39 

36 

34 

39 

56

49 

36 

35 

35 

35

31 

30 

27 

24 

23

22 

22 

19 

18 

24

25 

24 

23 

21 

21

24 

25 

27 

40 

36 

34

Aug.

33 

34 

33 

32 

31

30 

28 

27 

28 

34

33 

31 

28 

27 

26

28 

25 

26 

26 

30

27 

2C 

27 

31 

32

30 

27 

21 

19 

20 

20

Sept.

23 

26 

24 

27 

28

23 

22 

22 

23 

24

25 

24 

24 

24 

24

24 

24 

24 

24 

24

23 

23 

24 

24 

24

25 

24 

24 

25

27

Minimum Mean *£*£

24 29.9 1,840 

22 26.4 1,570 

19 25.7 1,580

10 61.6 44,690

22 24.1 1,480 

20 25.0 1,390 

27 31.8 1,960 

35 119 7,100 

140 199 12,230 

60 164 9,760 

18 30.1 1,850 

19 28.1 1,730 

22 24.2 1,440

18 60.7 43,930

279 sec. -ft.; May 4 (6 p.m.) 243 sec. -ft., 

ec.-ft.; June 19 (4:30 a.m.) 334 sec. -ft.
194 GREEN RIVER BASIN

Big Sandy Creek at Leckle Ranch, near Big Sandy, Wyo.

Location.- Water-stage recorder, lat. 42°3S', long. 109°17', in sec. 18, T. 30 N., R. 104 

W., at Leckie Ranch, half a mile downstream from Squaw Creek and 9 miles southeast of 

Big Sandy.

Drainage area.- 94 square miles.

Records available.- July 1910 to August 1911, July 1939 to September 1949 (no winter records 1910-11, 1942-45).

Extremes.- Maximum discharge during year, 890 second-feet June 19 (gage height, 6.30 

feet), from'rating curve extended above 700 second-feet; minimum daily recorded, 10 

second-feet Oct. 2-4.

1910-11, 1939-49: Maximum discharge, 890 second-feet May 27, 1942, June 19, 1949, 

from rating curve extended above 700 second-feet; maximum gage height, 6.30 feet 

June 19, 1949; minimum discharge observed, 4.8 second-feet Jan. 4, 1940 (discharge 

measurement), but may have been less during period of ice effect.

Remarks.- Records excellent except those for period of ice effect or no gage-height record, which are poor. Pew diversions above stations.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

11 

10 

10 

10 

11

12 

12 

12 

12 

12

11

11 *11 

11 

19

23 

19 

19 

IS 

18

17 

16 

15 

15 

14

14 

13 

12 

14 

14 

14

Nov.

13 

16 

t!4 

b!3 

b!3

b!3 

bl6 

15 

15 

*16

16 

17 

17 

17 

17

15 

14 

14 

14 

15

14 

14 

14 

14 

13

12 

12 

12 

12 

12

Dec.

13

Jan.

13

Feb.

> 14

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

raber. ... ........

lendar year 1948

ter year 1948-49 ...............

Mar.

> 15

Apr.

16 

16 

16 

17 

17

17 

17 

18 

18

23

29 

26 

28 

22 

25

30 

39 

45 

50

48

41

56 

67 

97 

109

122 

136 

176 

186 

 160

Secondfoot-days

430 

429 

403

25,758.5

403 

392 

465 

1,667 

8,764 

10,738 

4,070 

1,117 

458

29,336

May

132 

126 

150 

172 

156

118 

116 

128 

134 

178

195 

282 

354 

497 

449

457 

457 

461 

378

308

260 

232 

208

333 

250

308 

363 

363 

414 

428 

357

Maximum

23 

17

726

186 

497 

740 

305 

95 

22

740

June

310 

260 

215 

204 

220

242 

310 

410 

434 

445

521 

493 

577 

461 

400

396 

360 

382 

740 

533

400 

366 

327 

278 

260

280 

258 

228 

222 

206

July

192 

192 

204 

305 

255

235 

204 

182 

180 

166

152 

150 

148 

138 

126

118 

110 

100 

98 

84

84

77 

74 

70 

67

64 

62 

61 

61 

58 

53

Minimum

10

12

-

16 

116 

204 

S3 

18 

12

_

Aug.

50 

48 

48 

44 

43

42 

40 

95 

95

72

54 

44

37 

35 

31

27 

25 

24 

22 

21

20 

18 

19 

21 

22

21 

19 

18 

20 

21 

21

Mean

13.9 

14.3 

13

70.4

13 

14 

15 

55.6 

283 

358 

131 

36.0 

15.3

80.4

Sept.

19 

18 

21 

21 

21

20 

18 

16 

16 

15

16 

17 

15 

15 

14

14 

13 

12 

12 

12

12

12 

12 

12 

12

12 

12 

12 

15 

22

Runoff In 

acre-feet

853 

851 

799

51,080

799 

778 

922 

3,310 

17,380 

21,300 

8,070 

2,220 

908

58,190

Peak discharge (base, 400 sec.-ft.).- May 14 (6 a.m.) 577 sec.-ft.; May 30 (6 a.m.) 485 sec.-ft.; 

dune 19 (B:3O a.m.) B90 sec.-ft.

* Winter discharge measurement made on this dsy.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 8 to Apr. 10 (stage-discharge relation affected by Ice during 

most of period}; discharge computed on basis of 1 discharge measurement, weather records, and records for stations on nearby streams.
GREEN RIVER BASIN 195

Little Sandy Creek near Elkhorn, Wyo.

Location.- Water-stage recorder, lat. 42°32' 

W . , T~miles northeast of Elkhorn.

long. 109° 13' , in sec . 35 , T. 30 N. , R. 104

Drainage area.- 20.9 square miles.

Records available.- July 1939 to September 1949 (no winter records 1942-45).

Extremes.- Maximum discharge during year, C32 second-feet June 19 (gage height, 3.85 feet); 

minimum daily recorded, 1.8 second-feet Sept. 28.

1939-49: Maximum discharge, 234 second-feet June 9, 1947; maximum rage height, 4.25 

feet June 26, 1944; minimum observed, 0.9 second-foot Jan. 4, 1940 (di charge measurement), but may have been less during period of ice effect.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. Continental Divide ditch diverts water to North Platte River Basin 

(Lander Creek). Two other small diversions above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

20

31 

33 

33

34 

35

36 

37 

28 

39 

30 

31

Oct.

2.5 

2.3 

2.3 

2.3

2.3

2.4 

2.3 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

3.1

4.8 

5.0 

4.8

4.6 

4.6

4.4 

4.4 

4.2 

4.2 

4'.0

4.0 

3.8 

3.8 

4.0 

4.0 

3.8

Nov.

3.7 

4.6 

4.8 

b4.0' 

b3.6

b4.0 

b4.4 

4.0 

.0 

* .2

.2 

.5 

.5 

.5 

.5

.2 

.0 

4.0 

4.0 

4.2

4.0 

4.0 

4.0 

3.8

3.6

3.3 

3.2 

3.2

3.2 

3.2

Dec.

' 3.5

Jan.

' 3.5

Feb.

> 4.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

> 5.0

Apr.

6.2 

6.2 

6.2 

6.6 

6.6

6.6 

6.6 

7.0 

7.0 

7.8

9.0 

10 

9.0 

8.0 

11

13 

*16 

17 

18 

14

12 

16 

20 

23 

25

29

31 

35 

38

36

Secondfoot -days

102.6 

119.4 

108.5

6,257.6

108.5 

112.0 

155.0 

1,589" 456.8 

3,162 

1,401 

364.3 

127.7

7,806.8

May

34

30 

34

36 

34

29 

28 

27 

29

33

42 

48 

57 

60 

50

58 

74 

83

74 

62

54

48 

42 

40 

42

46 

54 

63 

84 

95 

99

Maximum

5.0 

4.8

157

38 

99 

208 

90 

17 

7.0

208

June

88 

72 

57 

52 

51

49 

49 

58 

91

115

139 

140 

140 

139

136

132 

126 

136 

208 

176

- 143 

132 

128 

110 

91

98 

88 

78 

72 

68

July

65 

66 

73 

88 

90

81 

77 

69 

65 

57

54 

51 

50 

49

46

43 

41 

39 

35

32

29 

25 

22 

21 

21

20 

20 

19 

19 

17 

17

Minimum

2.1 

3.2

-

6.2 

27 

49 

17 

7.0 

1.8

-

Aug.

17 

17 

16 

16 

15

14 

14 

14 

14

14

14 

14 

13

13 

12

11 

11 

11 

10 

10

10 

9.8 

9.2 

9.8 

8.9

8.6 

8.0 

7.8 

7.8 

7.4 

7.0

Mean

3.31 

3.98 

3.5

17.1

3.5

4.0 

5.0 

15.2 

51.3 

105 

45.2 

11.8 

4.26

21.4

Sept.

7.0

6.6 

6.6 

6.8

6.2

5.6 

5.2 

5.0 

4.8 

5.0

5.2

4.6 

4.4 

4.2 

4.0

3.8 

3.4 

3.4 

5.2 

2.3

2.6 

2.8 

2.6 

5.8 

2.8

2.1 

1.9 

1.8 

2.4 

3.6

Runoff in 

acre-feet

204

237 

215

12,410

215 

222 

307 

906 

3,150 

6,270 

2,780 

723 

253

15,480

Peak discharge (base, 120 sec.-ft.).- June 19 (11 a.m.) 232 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- Ho gage-height record Nov. 8 to Apr. 30 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 2 discharge measurements, weather records, and records for stations on nearby streams.
196 GREEN RIVER BASIN

Blacks Fork near Millburne, Wyo.

Location.- Water-stage recorder, lat. 41°03', long. 110°34', in sec, 35, T. 13 N., R. 117 

W., 3 miles downstream from Little West Fork, 4j miles north of Utah-Wyoming State 

line, and 15 miles southwest of Millburne. Prior to Nov. 5, 1948, water-stage recorder 

at site 150'feet upstream at different datum.

Drainage area.- 156 square miles.

Records available.- July 1939 to September 1949 (no winter records 1942-45).

Extremes.- Maximum discharge during year, 1,160 .second-feet June 19 (gage height, 2.95 

I'eet j; minimum not determined, occurred during period of no gage-height record.

1939-49: Maximum discharge, 1,960 second-feet June 26, 1944 (gage height, 3.46 

feet, site and datum then in use), from rating curve extended above 1,000 secondfeet; minimum not determined, occurred during period of no gage-height record.

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Wo diversion above station.

Revisions (water year).- W 929: 1940.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

40 

39 

39 

38 

47

44 

44 

45 

45 

42

41 

40

39 

38 

45

42

36 

39

38

35

34 

34

34 

33 

32

32

32 

36 

36 

31 

35

Nov.

36 

39 

35 

32 

30

33 

29 

27 

28 

28

28 

25 

21 

23 

21

19

19 

18 

18 

19

18 

19 

2O 

22 

21

20 

18 

19 

19

20

Dec.

' 20

Jan.

> 18

Feb.

16

Month

Oo to 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprt

June 

July 

Augu 

Sept

Wa

.endar year 1948

1..... ..................................

ter year 1948-49 ...............

Mar.

18

Apr.

18 

18 

19 

20 

22

23 

25 

24 

24 

22

22 

23

23 

25 

26

28 

31 

38 

50 

64

77 

88 

113 

165 

197

207 

218 

271 

307 

302

Secondfoot-days

1,185 

724 

620

50,178

558 

448 

558 

2,490 

13,326 

20,207 

8,507 

2,838 

1,404

52,865

May

235 

253 

375 

420 

320

248 

232 

235 

284 

380

442 

464 469- 

547 

568

492 

480 

447 

415 

415

375 

340 

330 

380 

492

582 

603 

589 

652 

680 

582

Maximum

47 

39

1,660

307 

680 

1,110 

528 

170 

62

1,110

June

547 

442 

400 

436 

395

365 

410 

516 

540 

638

806 

1,020 

988 

890 

876

928 

980 

965 

1,110 

883

- 771 

736 

687 

624 

610

624 

554 

522 

480 

464

July

436 

458 

480 

528 

480

436 

405 

365 

350 

355

316 

302 

294 

276 

258

244 

240 

228 

224 

214

197 

179 

170 

167 

156

143 

136 

128 

120 

113 

109

Minimum

31 

18

-

18 

232 

365 

109 

60 

40

-

Aug.

104 

106 

113 

100 

102

106 

95 

170

143 

167

118 

106 

100 

95 

91

86 

82 

79 

76 

72

70 

66 

64 

86 

71

62 

62 

62 

62 

62 

60

Mean

38.2 

24.1 

20

137

18 

16 

18 

83.0 

430 

674 

274 

91.5 

46.8

145

Sept.

62

so

62 

57 

43

42 

41 

40 

42

48

60 

47 

47 

55 

49

44 

43 

42 

42 

41

40 

40 

40 

40 

41

43 

43 

43 

52 

55

Runoff In 

acre-feet

2,350 

1,440 

1,230

99,550

1,110 

889 

1,110 

4,940 

26,430 

40,080 

16,870 

5,630 

2,780

104,900

Peak discharge (base, 1,100 see.-ft.).- June 15 (l a.m.) 1,150 see.-ft.; June 19 (2 p.m.) 1,160 sec.-ft. 

Note.- No gage-height record Nov. 5 to Apr. 20 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of weather records and records for nearby stations.
GREEN RIVER BASIN 197

Blacks Fork near Urie, Wyo.

Location.- Water-stage recorder, lat. 41°21', long. 110°20', in sec. 24, T. 16 N., R. 115 

W., 2 miles downstream from Quartz Creek and 2§ miles north of Urie.

Drainage area.- 261 square miles.

Records available.- August 1913 to September 1924 (no winter records), October 1937 to 

tjepcemoer 1949.

Average discharge.- 12 years (1937-49), 54.7 second-feet.

Extremes.- Maximum discharge during year, 858 second-feet June 20 (gage height, 5.58

reet), from rating curve extended above 600 second-feet; minimum daily, 2.2 second-feet 

Oct. 14, 15.

1913-24, 1937-49: Maximum discharge observed, 2,680 second-feet June 20, 1917 (gage 

height, 4.72 feet, site and datum then in use); minimum daily, 0.2 second-foot Sept. 2, 

3, 1939.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. Diviersions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.5 

3.5 

3.5 

3.5 

4.2

4:2 

3.9 

3.2 

3.9 

3.9

3.9 

3.5 

2.7 

2.2 

2.2

2.7 

2.7

2.7 

3.0

3.0 

3.2 

4.8 

4.8 

4.8

5.2 

5.2 

5.2 

5.5 

5.5 

5.5

Nov.

4.8 

4.5 

5.2 

5.8

6.2

*4.8 

5.2 

5.5 

7.4 

7.0

6.5 

6.2 

6.5 

6.5 

5.8

6.5 

6.0 

6.0 

6.4 

6.2

6.1 

6.7 

7.2 

7.2 

7.0

6.6 

6.8 

6.9 

6.8 

6.7

Dec.

7.2 

8.3 

8.2 

7.8 

7.6

7.4 

*7.3 

7.4 

7.9 

8.3

8.9 

8.9 

9.1 

9.0 

8.8

9.0 

9.1 

9.7 

11 

11

11 

11 

11 

10 

9.7

9.4 

10 

14 

13

I! 

13

Jan.

14 

13 

13 

14 

*15

16 

18 

18 

16 

17

18 

19 

20

21 

21

21 

20 

20 

21 

22

24 

23 

22 

20 

18

19 

20 

21 

20 

22 

21

Feb.

22 

*24 

25 

24 

24

25 

26 

26 

26 

25

*22 

20 

19 

20

21

21 

21 

22 

23 

23

24 

24 

24 

25 

25

24 

23 

23

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ember. ..................................

ter year 1948-49 .......................

Peak discharge (base, 4RD sec. -ft. .- June

Mar.

23 

23 

24 

24 

24

*25 

26 

27 

29 

30

32 

34 

37 

42 

47

46 

48 

50 

54 

59

56 

52 

50 

*48 

44

42 

40 

44 

41 

47 

41

Apr.

42 

45 

48 

52 

59

67 

75 

*83 

103 

105

110 

111 

126 

100 

75

67 

65 

64 

44 

20

16 

13 

13 

18 

26

16 

12 

11 

13 

15

Secondfoot-days

118.3 

187.0 

297.0

23,541.5

587 

651 

1,209 

1,614 

1,365.3 

7,479 

628.2 

253.9 

215.5

14,605.2

May

14 

10 

8.3 

11 

16

18 

17 

14 

12 

11

12 

49 

66 

78 

112

112 

90 

90 

67 

45

34 

28 

24 

21 

20

28 

47 

57 

64 

96 

94

Maximum

5.5 

7.4 

14

1,140

24 

26 

59 

126 

112 

778 

78 

15 

10

778

13 (3:30 p.m. ) 742 sec.

June

76 

65 

48 

81 

128

64 

42 

67 

100 

80

154 

463 

552 

511 

390

388 

484 

550 

646 

778

475 

342 

262 

191 

131

87 

90 

59 

46 

29

July

21 

19 

29 

74 

78

56 

41 

28 

20 

22

25 

20 

18 

16 

14

14

12 

12 

14 

12

11 

10 

9.6 

7.8 

6.5

5.8 

5.8 

6.2 

7.0 

7.0 

6.5

Minimum

2.2 

4.5 

7.2

.9

13 

19 

23 

11 

8.3 

29 

5.8 

4.5 

4.5

2.2

Aug.

6.5 

6.5 

7.4 

8.3 

9.2

8.8 

11 

10 

15 

14

12 

9.6 

8.3 

7.8 

7.8

6.2 

5.8 

5.8 

5.2 

4.8

4.5 

4.5 

5.5

6.5 

6.2

6.5 

9.6 

9.6 

10 

10 

11

Mean

3.82 

6.23 

9.58

64.3

18.9 

23.2 

39.0 

53.8 

44.0 

249 

20.3 

8.19 

7.18

40.0

-ft. j June 20 (1 p.m.

Sept.

9.6 

9.2 

9.6 

10 

9.2

7.8 

7.0 

7.4 

7.8 

6.2

7.0 

5.8

6.5 

7.4 

6.5

5.5 

4.5 

4.5 

5.8 

5.5

5.8 

6.5 

5.8 

5.8

6.5

8.3 

7.4 

7.8 

8.8 

10

Runoff In 

acre-feet

235 

371 

589

46,700

1,160 

1,290 

2,400 

3,200 

2,710 

14,830 

1,250 

504 

427

28,970

) 858 sec.-

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 17 to Mar. 31 (no gage-height record Jan. 26 

to Feb. 1).
198 GREEN RIVER BASIN

Blacks Fork near Lyman, Wyo.

Location - Water-stage recorder, lat. 41°27', long. 110°10', In sec. 21, T. 17 N., R. 113 

W., 500 feet downstream from bridge on U. S. Highway 30 S, 4 miles downstream from Cottonwood Creek, and 12 miles northeast of Lyman.

Drainage area.- 821 square miles.

Records available.- October 1937 to September 1940, October 1941 to September 1949.

Average discharge.- 11 years, 128 second-feet.

Extremes - Maximum discharge during year, 1,380 second-feet June 20; maximum gage height,

t>.44 reet Mar. 16 (ice jam); minimum daily discharge, 3.6 second-feet Oct. 1-3, 13-16.

1937-40, 1941-49: Maximum discharge, 2,390 second-feet June 12, 1947 (gage height,

6.58 feet), from rating curve extended above 1,400 second-feet; no flow Aug. 8, 15-22,

1940.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

3.6 

3.6 

3.6 

3.8 

4.6

5.2 

*4.8 

4.3 

4.1 

3.8

4.1 

3.8

3.6 

3.6 

3.6

3.6 

6.6 

5.2 

4.3 

4.3

4.6 

4.8 

4.8 

5.2

6.6

7.2 

7.2 

7.2 

7.6 

8.0 

8.3

Nov.

8.3 

8.3 

8.0 

9.0 

12

*16 

9. 2 

9.2 

11 

15

14 

13 

12 

13 

12

11 

10 

10 

11 

10

10 

11 

12 

11 

10

10 

9.2 

9.6 

9.8 

9.7

Dec.

9.6 

12 

11 

11 

10

10 

*10

11 

11 

11

12 

12 

12 

12 

11

11 

11 

11 

12 

13

12 

12 

11 

11 

11

11 

10 

13 

12 

12 

12

Jan.

13 

12 

12 

12 

13

» 13 

14

14 

13 

14

14 

15 

16 

16 

13

14 

14 

16 

18 

17

18 

21 

19 

16 

14

14 

14 

16 

15 

18 

17

Feb.

18 

21 

22 

*23 

22

24 

25 

25 

25 

 25

27 

23 

20 

21

24

26 

30 

32 

35 

38

40 

45 

51 

54 

57

54 

54 

64

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

h. ......................................

1... ....................................

ter year 1948-49 .......................

Mar.

64 

66 

66 

67 

68

 70 

73 

73 

77 

82

87 

85 

92 

1OO 

116

108 

106 

144 

164 

180

163 

150 

150 

148 

136

135 

150 

150 

170 

180 

187

Apr.

183 

190 

200 

210 

*215

215 

212 

212 

208

195

195 

212 

230 

210 

165

140 

152 

160 

152 

127

102 

92 

96 

108

118

129 

112 

98 

93 

96

Secondfoot-days

155.6 

324.3 

350.6

41,730.9

465 

925 

3,607 

4,827 

9,596 

19,200 

3,263 

531 

335.8

43,580.3

May

98 

85

68 

67 

112

200 

243 

249 

162 

150

158 

28-2 

420 

424 

420

468 

538 

570 

525 

448

390 

358 

321 

249 

228

279 

376 

428 

440 

432 

408

Maximum

8.3 

16 

13

1,720

21 

64 

187 

230 

570 

1,300 

358 

3] 

21

1,300

June

365 

382 

40O

440

816

703 

561 

543 

575 

538

489 

890 

1,300 

1,150 

900

769 

798 

936 

1,020 

1,260

1,110 

736 

520 

396 

312

228 

300 

300 

261 

202

July

145 

112 

108 

175 

294

358 

295 

232 

178 

158

160 

138 

114 

96 

84

69 

62 

53 

51 

51

46 

43 

40 

37 

32

27 

24 

21 

20 

20 

20

Minimum

3.6 

8.0 

9.6

.3

12 

18 

64 

92 

67 

202 

20 

10 

7.2

3.6

Aug.

19 

17 

16 

16 

19

19 

18 

20 

21 

28

25 

24 

20 

19 

18

17 

15 

14 

13 

12

11 

10

12 

31 

16

12 

11 

13 

14

15 

16

Mean

5.02 

10.8 

11.3

114

15.0 

33.0 

'116 

161 

310 

640 

105 

17.1 

11.2

119

Sept.

17 

15

21 

15 

15

14 

11 

11 

12 

14

13 

12 

11 

12 

12

10 

8.4 

7.2

7.2

7.2

7.2 

7.2 

7.6 

7.6 

7.6

9.6 

10 

10 

12 

12

Runoff in 

acre-feet

309 

643 

695

82,780

922 

1,830 

7,150 

9,570 

19,030 

38,080 

6,470 

1,050 

666

86,420

Peak discharge (base, 900 sec.-ft.).- June 13 (7:30 p.m.) 1,340 sec.-ft.; June 20 (7:30 p.m.) 1,380 

see.-ft.

« Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 4 to Dec. 26, Jan. 6-20, Mar. 6-23. No gag3- 

height record Dec. 27 to Jan. 5, Jan. 21 to Mar. 5, Mar. 24 to Apr. 4 (stage-discharge relation 

affected by Ice during most of periods), June 12; discharge computed on basis of discharge measurements made Feb. 4, 10, June 12, weather records, and records for nearby stations.
GREEN RIVER BASIN 199

Blacks Fork near Green River, Wyo.

Location.- Water-stage recorder, lat. 41°23', long. 109°37', in sec. 8, T. 16 N., R. 108 

W., auo feet downstream from Dry Creek, 12 miles upstream from mouth, and 12.5 miles 

southwest of Green River.

Drainage area.- 3,670 square miles.

Records available.- August 1947 to September 1949.

Extremes.- Maximum discharge during year, 2,630 second-feet June 5; maximum gage height, 

 CJ.J>y feet Mar. 5 (ice jam); no flow Oct. 27, Nov. 5, 10, 11.

1947-49: Maximum discharge, 4,290 second-feet Mar. 26, 1948 (gage height, 6.93 

feet); no flow Sept. 25, 1948, Oct. 27, Nov. 5, 10, 11, 1948.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

Z 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.1 

.1 

.1 

.2

.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

. 1

.1

.1 

0 

.1 

.2 

.2 

.2

Nov.

0.2 

.2

.1 

*0

.1 

.1 

.1 

.1 

0

0 

10 

17 

23 

40

49 

40

27 

20 

22

25 

23 

23 

25 

27

24 

15 

18 

19 

20

Dec.

20 

27 

29 

25 

22

*18 

16 

16 

17 

18

20 

30 

35 

40 

45

35

25 

20 

17 

15

25 

20 

15 

11 

9.8

7.2 

5.8 

5.2 

5.4 

6.0 

6.8

Jan.

7.2 

7.8 

7.2 

*6.8 

9.3

11 

12 

12 

11 

8.6

8.1 

9.0 

10 

12 

13

11 

10 

9.0 

9.0 

9.0

9.5 

11 

9.1 

8.3 

7.0

6.6 

*6.4 

6.0 

5.6 

5.9 

5.4

Feb.

5.3 

5.2 

5.0 

5.0 

5.0

4.7 

4.4 

*4.2 

5.0 

7.8

10 

12 

12 

12 

14

17 

20 

26 

37 

63

76 

74 

76 

85 

94

110 

123 

132

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Appl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

142 

158 

170 

*192 

195

200 

217 

220 

230 

250

268 

270 

320 

400 

480

410 

445 

524 

609 

728

*623 

644 

574 

581 

415

370 

330 

276 

264 

268 

284

Apr.

1 

1 

1

Secondfoot -days

3.5 

468.1 

607.2

127,833.4

273.8 

1,044.6 

11,057 

20,045 

34,939 

35,636 

6,809 

861 

137.1

111,881.3

330 

340 

430 

360 

475

475 

490 

567 

644 

644

658 

686 

721 

728 

665

567 

475 

475 

536 

609

714 

798 

805 

763 

880

040 

150 

100 

992 

928

May

920 

912 

770 

644 

679

888 

1,480 

1,150 

904 

749

644 

658 

721 

,280 

,360

,540 

,000 

,920 

,790 

,720

,660 

,490 

,280 

,150 

,030

912 

864 

912 

952 

976 

984

Maximum

0.2 

49 

45

3,270

13 

132 

728 

1,150 

2,000 

2,440 

665 

66 

9.4

2,44'0

June

1,010 

984 

992 

1,090 

2,440

,960 

,640 

,400 

,460 

,450

,290 

,160 

,390 

,690 

,600

,340 

,120 

-,050 

,170 

,280

,520 

,460 

,000 

856 

700

581 

530 

490 

518 

465

July

420 

360 

345 

292 

320

490 

665 

524 

425 

340

276 

264 

256 

220 

193

171 

148 

124 

101 

98

104 

107 

86 

83 

78

68 

63 

56 

49 

43 

40

Aug.

37 

34 

32 

30 

28

25 

24 

27 

35

66

43 

42

31 

30 

27

24 

22 

20 

20 

20

18 

17 

17 

18 

32

49

25 

22 

19 

15 

12

Sept.

7.4 

5.8 

5.8 

6.4 

6.9

6.9 

6.4 

5.8 

6.4 

5.2

4.7 

3.6 

3.6 

3.0 

2.5

2.1 

1.8 

1.6 

1.6 

1.8

1.8 

1.8 

2.3 

2.5 

3.0

4.2 

4.7 

8.7 

9.4 

9.4

Minimum Mean *£%£

0 0.11 6.9 

0 15.6 928 

5.2 19.6 1,200

0 349 253,500

 5.4 8.83 543 

4.2 37.3 2,070 

142 357 21,930 

330 668 39,760 

644 1,127 69,300 

465 1,188 70,680 

40 220 13,510 

12 27.8 1,710 

1.6 4.57 272

0 307 221,900

Peak discharge (base, 2,200 sec. -ft.).- May 17 (4:30 p.m.) 2,620 sec. -ft.; ,june 5 (2 a.m.) 2,630

sec.-f.. 

* Winter discharge measurement or observation of no flow made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 19 to Mar. 17 (no gage-height record Dec. 31 

to Jan. 3, Jan. 6-26, Feb. 13 to Mar. 3; discharge computed on basis of weather records and records 

for stations on nearby streams).

939921 O- 51 - 14
200 GREEN RIVER BASIN

East Fork of Smith Fork near Robertson, Wyo.

Location.- Water-stage recorder, lat. 41°03' , long. 110°24', in NE^- sec. 5, T. 12 N. , 

K. 115 W., 1 mile upstream from Gilbert Creek and 11 miles southeast of Robertson.

Drainage area.- 53.0 square miles.

Records available.- July 1939 to September 1949 (no winter records 1942-45).

Extremes.- Maximum discharge during year, 588 second-feet June 19 (gage height, 3.07

feet) , from rating curve extended above 300 second-feet; minimum recorded, 5.0 secondfeet Oct. 18; minimum gage height, 0.28 foot Sept. 21.

1939-49: Maximum discharge, 644 second-feet June 26, 1944 (gage height, 3.21 

feet), from rating curve extended above 370 second-feet; minimum observed, 3.0 secondfeet Jan. 23, 1940 (discharge measurement), but may have been less during period of 

ice effect.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. No diversion above station.

Revisions.- W 979: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.4 

7.1 

6.8 

6.8 

9.6

9.6 

8.4 

8.0 

8.0 

8.0

7.4 

6.8 

6.2 

6.5 

8.4

8.8 

8.8 

7.1 

6.8 

6.8

6.5 

6.2 

5.9 

5.9 

5.9

6.2 

6.2 

6.5 

7.4 

8.8 

9.2

Nov.

7.7 

7.4 

7.4 

b7.8 

b9.4

bS.O 

b8.2 

b8.6 

9.0 

8.5

8.1 

8.0 

8.0 

7.6 

7.2

8.1 

7.6 

7.9 

*8.2 

8.0

7.6 

7.9 

8.1 

8.0 

7.4

7.2 

7.3 

7.2 

7.1 

6.6

Dec.

 7.0

Jan.

' 6.5

Feb.

6.0

Month

Octo 

Move 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

, 6.5 

(*)

Apr.

6.1 

6.2 

6.4 

6.6 

7.0

7.4 

8.1 

8.0 

7.6 

7.4

7.4 

7.4 

7.& 

7.9 

8.3

8.6 

9.2

10 

11

12

*13 

14 

20 

31 

39

41 

43 

53 

63 

61

Seoondfoot-days

228.0 

235.1

217.0

13,202.7

201.5 

168.0 

201.5 

538.2 

4,404 

8,272 

3,571 

1,113 

3*9.6

19,498.9

May

50 

69 

92 

95 

69

62 

70 

75 

82 

105

133 

162 

152 

173 

194

173 

152 

138 

118

128

110 

106 

103 

122

189

235 

235 

241 

253 

283 

235

Maximum

9.6 

9.4

364

63 

283 

560 

244

73 

17

560

June

211 

165 

142 

170

160

138 

162 

192 

192 

220

292 

379 

404 

368 

344

365 

400 

404 

560 

480

351 

309 

289 

259 

244

253

241 

211 

192 

175

July

165 

173 

189 

244 

235

194 

173 

155 

145 

157

124 

116 

116 

112 

103

98 

100 

94 

97 

95

94

79 

73 

70 

66

60 

56 

51 

47 

45 

45

Minimum

5.9

6.6

-

6.1 

50 

138 

45

16

8.0

-

Aug.

48 

47 

56 

47 

47

52 

45 

57 

66 

73

51 

44 

39 

36 

35

31 

29 

28 

25 

25

23 

22 

21 

26 

24

21 

22 

21 

19 

16 

17

Mean

7.35 

7.84 

7.0

36.1

6.5 

6.0 

6.5 

17.9 

142 

276 

115 

35.9 

11.7

53.4

Sept.

17 

16 

15 

15 

14

13 

12

12 

13 

14

16 

13 

12 

13 

12

11 

9.4 

8.8 

9.1 

8.4

8.0 

8.0 

8.0 

3.0 

3.0

8.4 

8.4 

9.1 

14

16

Runoff in 

acre-feet

452

466 

430

26,180

400 

333 

400 

1,070 

8,740 

16,410 

7,080 

2,210 

693

38,680

Peak discharge (base, 500 see.-ft.).- May 30 (4 a.m.) 520 sec.-ft.; June 15 (6 a.m.) 44O sec.-ft.; 

June 19 (12 m.J 588 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 9 to Apr. 21 (stage-discharge relation affected by ice during part 

of period); discharge computed on basis of 3 discharge measurements,'weather records, and records for 

nearby stations.
GREEN RIVER BASIN 201

Smith Fork at Mountainview, Wyo.

Location.- Water-stage recorder, lat. 41°16«, long. 110°20', in sec. 23, T. 15 N., R. 115 

W. , at highway bridge in southwestern edge of Mountainview.

Drainage area.- 192 square miles.

Records available.- October 1941 to September 1949.

Extremes.- Maximum discharge during year, 422 second-feet June 20 (gage height, 3.03 feet); 

 minimum daily, 2.8 second-feet Oct. 15.

1941-49: Maximum discharge, 1,060 second-feet May 20, 1948 (gage height, 4.23 feet); 

minimum daily, 2.5 second-feet Aug. 30, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Many diversions above station for Irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

ZZ 

23 

24 

25

ze

27 

28 

29 

30 

31

Oct.

a4.5 

a4.5 

a4.5 

aS.O 

a5.6

a6.0

a5. 4 

a4.5 

a4.3 

a4.5

a4.4 

a4.0 

a3.4 

a3.0 

a2.8

a3.0 

a3. 2 

a3.2 

3.2 

3.2

3.4 

3.8 

3.8 

4.2 

4.2

4.6 

5.6 

6.3 

6.3 

6.3 

6.0

Nov.

6.3 

7.8 

8.2 

8.2 

8.2

12

8.2 

8.6 

15 

21

22 

22 

17 

18 

16

16 

*15 

13 

14 

16

14 

15 

16 

18 

15

15 

12 

13 

14 

14

Dec.

13 

19 

17 

16 

15

15 

 16 

16 

16 

17

18 

18 

17 

17 

15

15 

14 

16 

18 

20

17 

17 

16 

15 

14

13 

12 

18 

16 

16 

16

Jan.

20 

18 

16 

16 

 18

19 

21 

21 

18 

16

17 

18 

18 

19 

19

16 

15 

15 

15 

16

17 

18 

15 

13 

11

11 

11 

12 

11 

14 

13

Feb.

13

*13 

14 

14 

15

15 

15 

15 

15

15

*16 

15 

12 

12 

13

14 

15 

15 

16 

17

17 

18 

18 

19 

20

19 

19 

20

Month

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ua

lendar year 1948

ter year 1948-49 .......................

Mar.

20 

20 

20 

21 

21

*21 

22 

22 

22 

24

24 

30 

32 

35 

41

42 

45 

47 

50 

44

40 

35

*31 

29 

27

25 

26 

29 

26 

32 

27

Apr.

27 

27 

30 

31 

40

47 

53 

62 

50 

44

39 

50

53 

42 

34

34 

41 

49 

50 

46

40 

40 

50 

59 

80

78 

70 

70

78 

76

Secondfoot-days

136.7 

418.5 

498

16,410.8

497 

439 

930 

1,490 

5,928 

6,792 

933.0 

351.1 

253.0

18,666.3

May

54 

47 

62 

92 

96

87 

92 

81 

73 

94

155 

314 

335

338 

363

324 

285 

288 

237 

219

a200 

a!65 

a!32 

also 

202

264 

255 

231 

234 

231 

228

Maximum

6.3

22 

20

848

21 

20 

50 

80 

363 

398 

121 

19 

12

398

June

200 

alSO 

a!60 

297 

356

a300 

243 

294 

276 

234

246 

366 

382 

321 

276

261 

282 

288 

314 

398

273 

192 

132 

110 

81

80 

83 

65 

57 

45

July

33

28 

47 

121 

116

81 

60 

45 

38 

40

38 

30 

25 

19 

16

13 

11 

16 

18 

18

15 

13 

11 

9.8 

9.8

9.8 

9.8 

10 

11 

11 

9.8

Minimum

2.8 

6.3 

12

2.5

11 

12 

20 

27 

47 

45 

9.8 

6.3 

6.3

2.8

Aug.

10

11 

11 

12 

11

12 

12 

12 

18 

19

17 

13 

12 

12 

11

11 

10 

9.0

8.2 

7.4

6.3 

7.0 

9.4 

12 

13

11 

9.8 

10 

11 

12 

11

Mean

4.41 

14.0 

16.1

44.8

16.0 

15.7 

30.0 

49.7 

191 

226 

30.1 

11.3 

8.43

51.1

Sept.

11 

9.4 

8.6 

9.0 

8.6

7.8 

7.0 

7.0 

7.0 

9.0

9.8 

10 

12 

12 

10

9.0 

8.2 

7.8 

7.8 

7.0

7.0 

7.4 

7.8 

6.3 

6.3

7.4 

7.4 

7.8 

8.2 

9.4

Runoff in 

acre-feet

271 

830 

988

32,560

986 

871 

1,840 

2,960 

11,', 60 

13,470 

1,850 

696 

502

37,020

Peak discharge (base, 370 sec.-ft.).- May 15 (7 p.m.) 394 sec.-ft.; June 12 (5 p.m.) 418 sec.-ft. ; 

June ZO (1 p.mTj 42Z sec.-ft. 

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of discharge measurement made Oct. 7, weather 

records, and records for stations on nearby streams.

Mote.- Stage-discharge relation affected by ice Nov. 18 to Mar. 14 (no gage-height record Jan. 20- 

31, Feb. 16 to Mar. 13; discharge computed on basis of 1 discharge measurement, weather records, and 

records for nearby stations).
202 GREEN RIVER BASIN

West Fork of Smith Fork near Robertson, Wyo.

Location.- Water-stage recorder, lat. 41°01', long. 110°29', in sec. 15, T. 12 N., R. 116 

HT;STree-quarters of a mile downstream from Archie Creek and 13 miles southwest of 

Robertson. Prior to Aug. 17, 1949, at site 75 feet upstream at same datum.

Drainage area.- 37.2 square miles.

Extremes.- Maximum discharge during year, 244 second-feet May 25 (gage height, 2.11 feet); 

minimum recorded, 0.8 second-foot Oct. 2 (gage height, 0.46 foot).

1939-49: Maximum discharge, 812 second-feet May 19, 1948 (gage height, 2.99 feet, 

site then in use); minimum, 0.2 second-foot Aug. 13, 1940, Feb. 25, 1941 (discharge 

measurement), but may have been less during winter.

Remarks.- Records good except those for periods of iej? effect or no gage-height record, 

which are poor. No diversion above station.

Revisions (water year).- W 929: 1940.

Rating taBles, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Mar. 16 to May 10)

Oct. 1 to Aug. 16

0.5 

1.0 

3.0 

6.0

0.9

1.0

1.1

1.2

1.3

1.4

1.7

1.8

60

118

140

Aug. 17 to Sept. 30

168

240

0.3

.4 

.5 

.6

0.9 

1.4 

2.4 

3.9

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.9 

1.0 

.9 

1.0 

2.1

1.7

1.6 

1.5 

1.4

1.3

1.2 

1.1 

1.0 

1.1 

1.8

1.7 

1.3 

1.3 

1.4 

1.2

1.1

1.2 

1.3 

1.4 

1.4

1.3 

1.3 

1.7 

1.8 

1.5 

1.7

Nov.

1.7 

2.1 

2.1 

b2.1 

b2.1

b2.6 

2.1 

2.1 

2.1 

2.1

2.0 

2.0 

2.0 

1.9 

1.9

2.0 

*b2.0 

2.0

2 ^1, 

2.0

1.9 

1.9 

1.9 

2.0 

2.0

1.9 

1.7 

1.8 

1.8 

1.7

Dec.

' 1.7

Jan.

' 1.5

Feb.

> 1.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

2.0

2.0 

2.1 

2.2 

2.4

2.6

*2.9 

2.8 

2.3 

2.6 

£.9

2.4 

2. 2 

2.1 

2.0 

2.3

2.1 

2.0 

2.1 

2.1 

2.2 

2.2

Apr.

2.3 

2.3 

2.4 

2.5 

2.7

3.1 

3.7 

4.5 

4.4 

4.3

4.1 

4.0 

4.1 

4.2 

4.5

4.9 

5.6 

6.2 

7. 2 

8.3

9.4 

22 

33 

48 

57

50 

56 

69 

78 

60

Secondfoot -days

42.2 

59.6 

52.7

5,798.9

46.5 

39.2 

67.6 

567.7 

3,779 

2,343 

322.6 

88.6 

57.0

7,465.7

May

50 

78 

110 

102 

64

48 

54 

67 

90 

98

157 

206 

202 

206 

195

148 

138 

136 

146 

125

108 

98 

106 

138 

162

146 

129 

129 

133 

114 

96

Maximum

2."l 

2.6

530

2.9 

78 

206 

133 

27 

8.0 

3.2

206

June

88 

69 

64 

114 

120

116 

125 

127 

102 

86

108 

133 

110 

96 

92

96 

98 

90 

104 

73

54 

45 

43

35 

31

30 

28 

24 

22 

20

July

17 

18 

22 

27 

23

17 

15 

14 

20 

20

14 

11 

11 

9.2 

8.4

7.6 

7.6 

6.8 

7.2 

6.4

5.7 

4.8 

4.5 

4.5 

3.9

3.3 

2.9 

2.8 

2.8 

2.7 

2.5

Minimum

0.9

1.7

.3

1.9 

2.3 

48 

20 

2.5 

1.6 

1.2

-

Aug.

2.3 

2.5 

3.3 

2.8 

3.3

3.9 

2.8 

6.0 

6.8 

8.0

3.9 

2.9 

2.5 

2.2 

2.0

1.6 

2.6 

2.4 

2.2 

2.1

1.8 

1.6 

2.2 

3.0 

2.4

2.0 

1.8 

2.0 

2.0 

1.9 

1.8

Mean

1.36 

1.99 

1.7

15.8

1.5 

1.4 

2.18 

18.9 

122 

78.1 

10.4 

2.86 

1.90

20.5

Sept.

1.8 

1.7

1.9 

1.5 

1.4

1.2 

1.2 

1.2

1.6 

2.1

3.0 

2.1

2.8 

3.2 

2.2

1.9 

1.6 

1.5 

1.6 

1.7

1.7 

1.7 

1.7 

1.7 

1.8

1.9 

2.0 

2.0 

2.6 

2.7

Runoff in 

acre-feet

84

118 

105

11 , 500

92 

78 

134 

1,130 

7,500 

4,650 

640 

176 

113

14,820

Peak discharge (base, 280 see.-ft.).- No peak above base.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 18 to Mar. 15 (stage-dischargi

nrlng most of period). Mar. 29 to Apr. 21; discharge computed on

.-

during most of per. . 

ords for stations on nearby .streams.

e relation probably affected by Ice 

basis of weather records and rec-
GREEN RIVER BASIN 803

Hams Fork near Frontier, Wyo.

Location.- Water-stage recorder, lat. 41°51' , long. 110 0 33' , in SW^ sec. 26, T. 22 N,. R. 

lib W . , Ij- miles upstream from Willow Creek and 3j- miles northwest of Frontier.

Drainage area.- 298 square miles.

Records available.- May 1945 to September 1949.

Extremes.- Maximum discharge during year, 1,020 second-feet May 19 (gage height, 4.73 feet); 

minimum daily, 8.5 second-feet Oct. 1-3.

1945-49: Maximum daily discharge, 1,610 second-feet Apr. 20, 1946; minimum daily, 6.0 

second-feet Sept. 2, 1948.

Remarks.- Records excellent except those for Apr. 10 to May 9, which are good, and those 

for periods of ice effect or no gage-height recori, which are fair. Several small 

diversions above station for irrigation and domestic water supply for town of Kemmerer.

Rating table, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Apr. 10 to May 6)

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.3 94

2.7 

3.1 

3.4 

4.7

190

300

415

1,010

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

8.5 

8.5 

8.5 

9.0

10

10 

10 

10 

10 

9.5

9.5 

10 

14 

17 

22

23 

24 

24

23

21 

21 

21 

21

21

21 

20

22 

23

Nov.

24

 27 

30 

27 

25

24 

23 

23 

24 

26

27

23

28 

27

26 

24 

24 

25

28

27 

26 

27 

29 

28

27 

26 

27 

29 

28

Dec.

28 

38 

37 

35 

S3

32

33

*33 

33 

35

36 

36 

36 

36 

35

34

33 

31 

33

36

32 

30 

30 

25 

22

21 

21 

24 

23 

23 

24

Jan.

25 

24 

23

23

24 

25 

25

27 

26

26 

27 

*28 

29 

27

25 

24 

25 

25 

25

*26 

27 

25 

23

21

20 

20 

20 

21 

20 

22

Feb.

21 

21

22

22

22 

22

23 

23

22 

20 

18 

17 

18

19 

20

23

23

24 

*24 

24 

24 

25

25 

25 

25

Month

Ooto 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

25 

26

26 

26 

26

25

25

*26 

25

28 

28 

28 

27 

28

30 

29 

32 

31 

33

32 

30 

32 

33 

32

30 

29 

30 

31 

31 

30

Apr.

32 

33 

32 

37

36

45 

52 

55 

*62 

59

57 

59

60 

81 

172

206 

248 

353 

546 

613

559 

546 

694

802 

820

798 

726 

698 

721 

672

Secondfoot-days

517.5 

793 

958

58,118.5

750 

618 

890 

9,874 

18,964 

12,921 

2,075 

922 

705

49,987.5

May

536 

460 

482 

604 

658

541 

460 

406 

385 

394

464 

572 

685 

644 

600

685

752 

896 

1,000 

860

802 

744

658 

618 

564

518 

528 

568 

618 

640 

622

Maximum

24 

30 

38

1,520

29 

25 

33 

820 

1,000 

662 

182 

32 

30

1,000

June

604 

613 

550 

505 

644

662 

631 

636 

590 

550

541 

523 

523 

492 

446

402 

361 

345 

446 

464

364 

307 

270 

250

232

211

216 

206 

180 

157

July

135 

107 

123 

157 

182

167 

135 

112 

94 

89

78 

56 

56 

54 

50

45 

38 

30 

29

28

28 

26 

26 

30

30

30 

30 

27 

28 

28 

27

Minimum

8.5 

23 

21

6.0

20 

17 

25 

32 

385 

157 

26 

27 

10

8.5

Aug.

27 

28 

29 

28 

29

29 

30

27 

27 

29

30 

31 

31 

30 

30

30 

30 

31 

31 

30

30 

30 

32 

32 

31

30 

30 

30 

30 

30 

30

Mean

16.7 

26.4 

30.9

159

24.2 

22.1 

28.7 

329 

612 

431 

66.9 

29.7 

23.5

137

Sept.

30 

30

30 

30

3C

29 

29 

28 

28 

29

29 

29 

29

29

28

28

28 

28 

28

28 

15 

10 

11 

10

10 

10 

10 

12 

12

Runoff in 

acre-feet

1,030 

1,570 

1,900

115,300

1,490 

1,230 

1,770 

19,580 

37,610 

25,630 

4,120 

1,830 

1,400

99,160

Peak discharge (base, 1,300 see.-ft.].- No peak above base.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 4-9, Nov. 14 to Apr. 9 (no gage-height record 

Dec. 16-29, Feb. 13-21; discharge computed on basis of weather records and records for stations on 

nearby streams).
204 GREEN RIVER BASIN

Hams Fork at Diamondvllle, Wyo.

Location.- Staff gage, lat. 41°46', long. 110°32', in SW£ sec. 24, T. 21 N., R. 116 W., at 

nignway bridge at Diamondvllle.

Drainage area.- 386 square miles.

Records available.- May 1918 to February 1933, May 1945 to September 1949 (no winter records 1922-30), dip continued.

Extremes.- Maximum discharge observed during year, 1,240, second-feet May 19 (gage height, 

4.9U feet); minimum daily, 4.1 second-feet Oct. 8, 9.

1918-33, 1945-49: Maximum discharge observed, 3,250 second-feet May 11, 1923, from 

rating curve extended above 1,800 second-feet; maximum gage height observed, 5.60 feet 

May 20, 1948; no flow Aug. 29-31, 1919, July 6, 7, Aug. 14, Aug. 25 to Sept. 27, 1931.

Remarks.- Records good above 100 second-feet and fair below except those for period of iceeffect or no gage-height record, which are poor. Gage read twice daily. Diversions 

above station for irrigation.

Rating tables, water year 1948-49, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Aug. 1 to Sept. 4)

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. 1 to Dec. 31, 

Aug. 18 to Sept. 30 Jan. 1 to Aug. 17

0.4 2.5 0.8 17 0.6 14 1.1 50 2.5 306 4.5 1,010 

 5 4.5 .9 24 .7 19 1.2 62 3.0 440 4.0 1,180 

 6 8.0 1.0 32 .8 25 1.5 106 3.5 590 

 7 12 1.2 52 1.0 40 2.O 190 4.0 780

Discharge, In second-feet, water year October 1948 to September 1949

Oct.

4.5 

4.5 

4.5 

6.2 

6.2

4.5 

4.5 

4.1 

4.1 

8.0

8.0 

8.0 

8.0 

8.0 

10

8.0 

12 

10 

14 

24

20 

17 

17 

24 

24

24 

24 

24 

24 

24 

24

Nov.

24 

«24 

24 

24 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

23 

23 

23 

23 

25

25 

25 

27 

29 

28

26 

26 

29 

30 

29

Dec.

29 

43 

41 

38 

36

35 

35 

«35 

35 

36

37 

39 

40 

40 

35

31 

31 

29

36 

41

39 

35 

33 

27 

24

22 

22 

26 

25 

24 

25

Jan.

26 '26 

25 

24 

25

26 

«26 

27 

29 

29

28 

30 

32

33 

£2

29 

27 

26 

25 

«25

28 

29 

27 

26 

24

23 

22 

22 

23 

22 

23

Month

Octo 

Hove 

Dece

Ca

Janu 

Febn 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Feb.

23 

23 

23 

23 

22

22 

22 

22 

25 

26

25 

23 

20 

 17 

19

20 

21 

24 

26 

26

27 

27 

27 

28 

28

28 

29

30

ber. ....................................

nber. ...................................

lendar year 1948 

ary. . * .

1. ................ .................... ..

Bt......................................

ber. year 19*6-49 ..............

Mar.

31 

31 

32 

33 

35

34 

32 

32 

«32 

27

34 

32 

32 

31 

32

36 

35 

40 

40 

56

43 

37 

43 

45 

38

37 

32 

36 

36 

40 

36

Apr.

38 

43 

40 

55 

5ti

76 

90 

90 

98 

90

90 

111 

114 

163 

163

194 

293 

384 

558 

642

542 

558 

740 

825 

780

780 

700 

680 

660 

642

May

526 

440 

454 

511 

625

482 

440 

440 

412 

398

440 

511 

70O 

680 

680

680 

720 

951 

1,150 

938

780 

760 

680 

558 

542

526 

526 

526 

608 

574 

574

Second- Maximum foot -days "axlmum

407.1 24 

751 30 

1,024 43

58,717.3 1,570

819 33 

676 30 

1,110 S6 

10,294 825 

18,832 1,150 

13,377 642 

2,142 138 

874 31 

581.0 25

50,887.1 1,150

June

608 

558 

558 

608 

642

574 

558 

590 

558 

558

496 

496 

496 

440 

371

332 

332 

332 

608 

482

398 

384 

358 

358 

358

358 

293 

280 

221 

172

July

130 

122

138 

130 

130

122 

114 

106 

122 

106

76 

76 

62 

62 

62

62 

50 

40 

40 

40

32 

32 

32 

32 

32

32 

32 

32 

32

32 

32

Aug.

27 

31 

31 

31 

31

31 

30 

30 

30 

29

29 

29 

28 

28 

28

28 

28 

28 

28 

28

28 

27 

27 

27 

26

26 

26 

26 

26 

26 

26

Sept.

25 

25 

25 

25 

24

24 

24 

24 

21 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

23 

8.0 

8.0 

8.0 

a9.0

a8.O 

a8.0 

a8.0 

alO 

alO

Mini Mean ££«.£

4.1 13.1 807 

23 25.0 1,490 

22 33.0 2,030

4.1 160 116,500

22 26.4 1,62O 

17 24.1 1,340 

27 35.8 2,200 

38 343 20,420 

398 607 37,350 

172 446 26,530 

32 69.1 4,250 

26 2t>.2 1,730 

8.0 19.4 1,150

4.1 139 100,900

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for station near Frontier.

Hote.- Stage-discharge relation affected by Ice Hov. 14 to Mar. 8 (nc gage-height record Hov. 16 

to Feb. 28; discharge computed on basis of 4 discharge measurements, weather records, and records 

for nearby stationsJ.
GREEN RIVER BASIN 205

Henrys Fork near Lonetree, Wyo.

Location.- Water-stage recorder, lat. 41°00', long. 110°17', in SE£ sec. 20, T. 12 N., R. 

114 w., at UtahrWyoming State line, half a mile downstream from West Fork and 8 miles 

southwest of Lonetree.

Drainage area.- 55.2 square miles.

Records available.- April 1943 to September 1949 (no winter records 1943-45).

Extremes.- Maximum discharge during year, 710 second-feet June 19 (gage height, 3.70 feet), 

rrom rating curve extended above 280 second-feet; minimum not determined, occurred during 

period of no gage-height record.

1943-49: Maximum discharge, 822 second-feet June 26, 194<i (gage height, 3.78 feet), 

from rating curve extended above 200 second-feet; minimum not determined; occurred during 

period of no gage-height record.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

wnich are poor. One diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.2 

6.8 

6.4 

6.4 

7.2

 6.0 

5.4 

5.4 

5.4 

6.8

7.2 

7.2 

6.8 

6.8 

8.4

8.0 

6.4 

6.8 

7.6 

6.8

6.0 

6.4

6.4 

6.0 

6.0

6.0 

5.4 

7.2 

7.2 

6.8 

6.8

Nov.

7.2 

7.2 

6.8 

b6.6 

b6.2

b6.4 

b7.0 

b6.8 

6.6 

7.5

bS.O 

8.8 

8.8 

8.4 

8.4

8.4 

8.4 

*7.6 

7.2 

7.0

7.0 

7.0 

7.0 

7.0 

6.8

6.5 

6.5

6.5 

6.5 

6.0

Dec.

> 5.0

Jan.

4.5

Feb.

4.0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Peak discharge (base, 300 sec. -ft. .- May 2

June 19 (7 a.m.; 71O sec. -ft.

Mar.

' 4.0 

(*)

Apr.

4.0 

3.7 

3.7 

4.4 

5.0

6.0 

6.5 

6.5 

7.5 

9.4

9.0 

8.6 

11 

14 

12

12

18 

18 

17 

20

20 

*22 

26 

33 

32

27 

27 

33 

35 

33

Secondfoot-days

205.2 

216.1 

155.0

12,098.5

139.5 

112.0 

124.0 

484.3 

3,714 

7,190 

2,533 

700 

422

15,995.1

9 (11 p.m.)

May

38 

52

64 

68 

61

49 

49

61 

66 

80

104 

120 

120 

130

145

138 

124 

118 

120 

120

107 

104 

102 

114 

161

192 

192 

220 

230 

255 

210

Maximum

8.4 

8.8

493

35 

255 

611 

176 

38 

22

611

338 sec .-ft

June

167 

138 

122 

132 

132

145 

155 

179 

185 

206

283 

350 

358 

310 

298

354 

418 

462 

611 

370

244 

230 

210 

182 

176

188 

170 

145 

140 

130

July

124 

130 

145 

176 

158

130 

116 

105 

107

114

94 

90

86 

80 

80

75 

75 

72 

73 

66

61 

54 

50 

43 

40

36 

35 

32 

30 

28 

28

Minimum

5.4 

6.0

-

3.7 

38 

122 

28 

14 

12

_

. ; June 12

Aug.

26 

27 

28 

26

- 28

28 

26 

33 

33 

38

29 

26 

23 

23 

23

22 

20 

20 

20 

19

18 

17 

18 

20 

18

16 

16 

15 

15 

15 

14

Mean

6.62 

7.20 

5.0

33.1

4.5 

4.0 

4.J} 

16.1 

120 

240 

81.7 

22.6 

14.1

43.8

Sept.

15 

15 

14 

14 

13

12 

12 

12 

12 

14

17 

15 

14 

16 

14

14

12 

12 

12 

12

' 13 

13 

14 

13

13

14

14 

15 

20 

22

Runoff in 

acre-feet

407 

429 

307

24,000

277 

222 

246 

961 

7,370 

14,260 

5,020 

1,390 

837

31,730

(1 a.m.) 454 sec. -ft.;

* Winter discharge measurement made on this day. 

b Stage-disdharge relation affected by ice.

Note.- No gage-height record Nov. 9, 10, Hoy. 19 to May 35 discharge computed on basis of 2 discharge measurements, weather records, and records for nearby stations.
206 GREEN RIVER BASIN

Henrys Fork near Burntfork, Wyo.

Location.ft Water-stage recorder, lat. 41°02', long. 110°03', in sec. 4, T. 12 N., R. 112 W., 

at Unita-Sweetwater county line, 2^ miles upstream from Burnt Fork and 2^ miles west of 

Burntfork School. Prior to Dec. 21, 1948, water-stage recorder at site 400 feet upstream 

at different datum.

Drainage area.- 242 square miles.

Records available.- October 1943 to September 1949.

Extremes.- Maximum discharge during year, 1,190 second-feet June 19 (gage height, 4.38 

reet), from rating curve extended above 530 second-feet; minimum daily, 5.5 second-feet 

Oct. 2-4.

1943-49: Maximum discharge, that of June 19, 1949; minimum daily, 3.5 second-feet 

Sept. 16, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Many small diversions p^ove station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

6.0 

5.5 

5.5

5.5 

7.0

*9.0 

9.8 

9.S 

9.8 

9.8

9.8 

10 

11

12

13

14 

14 

14 

16 

17

' 17 

17 

17

17 

17

17 

17 

16 

17 

17 

17

Nov.

18 

18 

19 

18 

16

18 

22 

22 

26 

28

24 

22

30 

28 

30

30 

24 

»26 

23 

23

22 

22 

22 

22 

22

22

20 

21 

21 

20

Dec.

19 

20 

20 

18 

17

17 

17 

18 

*18 

18

18 

18 

18 

17 

16

16 

16 

16 

16 

16

16 

15 

15 

15 

15

15 

15 

15 

16 

18 

19

Jan.

19 

19 

*18 

18 

18

19 

19 

19 

19 

18

18 

18 

19 

19 

19

19 

19 

18 

18 

18

19 

19 

19 

19 

*18

17 

16 

16 

17 

17 

17

Feb.

18

18 

18 

18 

18

18 

18 

18 

18 

18

18 

17 

16 

15 

15

18 

18 

19 

19 

20

 21 

23 

26 

28 

28

28 

29 

29

Month

Ooto 

Hove 

Deee

Ca

Janu 

Pebr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 19*8 

ary

1.......................................

ter year!948-49 .......................

Peak discharge (base, 340 see. -ft.).- May

June 12 (4 p.m.) 918 seo.-ft.j June 19 (2:30 

* Winter discharge measurement made on thJ 

Note.- Stage-discharge relation affected b 

record Dec. 20 to Feb. 20; discharge compute 

and records for stations on nearby streams).

Mar.

*29

30 

31 

31 

31

33 

31

33 

35 

34

36 

37 

40 

43 

45

50 

54 

58 

62 

56

52 

 50 

45 

41 

42

38 

40 

38 

36 

48 

46

Apr.

44 

52

66 

83 

93

111 

116 

116 

101 

90

93 

103 

103 

76 

45

56 

78 

80 

71 

56

44 

*45 

45 

51 

54

54 

49 

44 

44 

44

Secondfoot-days

394.5 

679 

523

18,066.6

565 

567 

1,275 

2,107 

5,214 

11,885 

3,723 

650 

500.7

28,083.2

May

40 

42 

44 

47 

86

90 

127 

134 

119 

96

103 

209 

238 

198 

206

325 

356 

223

167 

164

147 

142 

132 

127 

142

184 

218 

250 

271 

298 

289

Maximum

17

30 

20

570

19 

29 

62 

US 

356 

911 

364 

47 

22

911

June

256 

220 

262

440

325

244 

289 

339 

346 

316

336 

696 

696 

552 

492

498 

570 

582 

911 

792

415 

319 

277 

253 

223

253 

280 

256 

235 

212

July

189 

189 

238 

310 

364

271 

209 

181 

195 

206

168 

164 

178 

140 

114

86 

51 

49 

47 

40

33

36 

35 

33 

33

27 

27 

27 

28 

28 

27

Aug.

26 

26 

24 

22 

22

22 

23 

24

35 

47

30

22 

17 

17 

16

16 

17 

17 

18 

18

17 

15 

18 

19 

19

19 

16 

16 

16 

18 

18

Sept.

21 

21 

22 

22 

21

18 

15 

15

16 

19

22

21 

21 

21 

21

19 

16

15 

14

12

9.0 

9.9 

9.9 

9.9 

11

13 

13 

14 

18 

21

Minimum Mean %£«£

5.5 12.7 782 

16 22.6 1,350 

15 16.9 1,040

3.5 49.4 35,850

16 18.2 1,120 

15 £0.2 1,120 

29 41.1 2,530 

44 70.2 4,180 

40 168 10,340 

212 396 23,570 

27 120 7,380 

15 21.0 1,290 

9.0 16.7 993

5.5 76.9 55,700

16 (9 a.m.) 570 see. -ft.; June 4 (4 p.m.) 510 sec. -ft. ; 

p.m.) 1,190 sec. -ft. 

s day. 

y ice Nov. 5, 6, 8-14, Nov. 18 to Apr. 2 (no gage-height 

d on basis of 2 discharge measurements, weather records,
GREEN RIVER BASIN 207

Henrys Pork at Llnwood, Utah

Location.- Water-stage recorder, lat. 41°00', long. 109°39', In sec. 23, T. 12 N., R. 109 

 vJ. , auO feet north of Wyoming-Utah State line at Llnwood. Datum of gage Is 5,995.24 feet

above mean sea level, adjustment of 1912. Prior to Dec. 13, 1948, staff gage 100 feet

upstream at same datum.

Drainage area.- 531 square miles.

Records available.- October 1928 to September 1949.

Average discharge.- 21 years, 80.2 second-feet.

Extremes.- Maximum discharge during year, 1,620 second-feet June 20 (gage height, 3.42 

reetj, from rating curve extended above 600 second-feet; minimum dally, 2.6 second-feet 

Oct. 1.

1928-49: Maximum discharge, 6,750 second-feet Aug. 3, 1936 (gage height, 7.19 feet, 

from floodmarks, "site and datum then in use), by slope-area method; no flow several days 

In 1934, 1935, 1939, 1940.

Remarks.- Records fair except those for periods of Ice effect or no gage-height record, 

wnich are poor. Diversions above station for irrigation. Gage read twice daily Oct. 

1 to Nov. 27.

Discharge, In second-feet, .water year October'1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.6 

3.1 

4.3 

4.3 

4.3

4.3 

4.3 

4.3 

4.8 

4.1

4.3 

4.8 

4.8 

5.2 

5.6

10 

10 

11 

11 

17

17 

15 

13 

14 

23

22 

22

23 

23 

26 

25

Nov.

26 

26 

26 

25 

*18

19 

30 

27 

34 

37

45 

26 

51 

46 

58

59 

65 

46 

46 

b40

b38 

b40 

b41 

b42 

b40

b40 

b36 

a38 

a39 

a37

Dec.

a35 

a42 

a42 

a37 

a36

*a38 

a40 

a40 

a43 

a44

a46 

a48 

b47 

b45 

b33

b32 

b32 

b33 

b35 

b43

b40 

b36 

b35 

b32 

b29

b28 

b28 

a35 

a39 

a39 

a40

Jan.

a41 

a35 

a31 

*b35 

h38

b41 

a41 

a38 

a36 

a35

a38 

a40 

a42 

a43 

a43

a38 

a36 

a36 

a36 

a37

a 38 

*a40 

a36 

a30 

a25

a23 

b23 

b26 

b24 

b28 

b27

Feb.

b26 

b27 

a27 

aZ7 

a27

a28 

a28 

a28 

a28 

*29

33 

b28 

b22 

b23 

b24

26 

28 

34 

b33 

b38

b40 

b46 

b45 

b45 

b46

b45 

t>46 

b48

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

*b52 

b56 

b52 

b56 

b54

b54 

b54 

b50 

b50 

b56

b56 

b54 

58 

59 

65

62 

77 

72 

91 

132

96 

*104 

84 

87 

54

59 

54 

60 

55 

59 

62

Apr.

73 

72 

74 

72 

79

94 

118 

142 

104 

106

102 

108 

110 

104 

77

70 

77 

85 

80 

73

65 

60 

61 

62 

67

72 

67 

61 

58 

56

Secondfoot-days

347.1 

1,141 

1,172

23,181.1

1,080 

925 

2,034 

2,449 

4,846 

13,329 

3,737 

877 

558

32,495.1

May

56 

53 

42 

30 

50

70 

104 

110 

98 

91

79 

91 169- 

221 

250

295 

502 

255 

154 

123

120 

112 

116 

123 

120

148 

157 

225 

270 

306 

306

Maximum

26 

65 

48

712

r 4348 

132 

142 

502 

1,260 

342 

64 

29

1,260

June

255 

221 

285 

446 

336

221 

194 

423 

423 

374

367 

582 

777 

S60 

600

502 

573 

S40 

799 

1,260

722

537 

374 

324 

290

260

280 

246 

201 

157

July

135 

118 

142 

216 

336

342 

260 

204 

172 

242

216 

166 

197 

148 

112

94 

72 

67 

69 

61

52 

46 

42 

39 

38

34 

28 

25 

24 

20 

20

Minimum

2.6 

18 

28

.8

23 

22 

50 

56 

30 

157 

20 

18 

10

2.6

Aug.

22

21 

23 

20 

20

20 

23 

28 

41 

64

62 

49 

38 

41 

37

38 

31 

28 

25 

23

22 

19 

20 

23 

23

21 

19 

18 

18 

20 

20

Mean

11.2 

38.0 

37.8

63.3

34.8 

33.0 

65.6 

81.6 

156 

444 

121 

28.3 

18.6

89.0

Sept.

21 

22 

23 

25 

28

26 

20 

18 

18 

20

24 

23 

22 

22 

23

17 

14 

12 

13 

12

11 

10 

10 

11 

13

15 

16 

16 

24 

29

Runoff In 

acre-feet

688 

2,260 

2,320

45,980

2,140 

1,830 

4,030 

4,860 

9,610 

26,440 

7,410 

1,740 

1,110

64,440

Peak discharge (base. 650 laec.-ft.).- June 20 (5 a.m.) 1,620 sec.-ft.; June 21-(11 a.m. 1,350 

sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record (stage-discharge relation affected by Ice during most of period); discharge 

computed on basis of 2 discharge measurements,, weather records, and records for stations on nearby 

streams.

b Stage-discharge relation affected by Ice.
208 GREEN RIVER BASIN

Middle Fork Beaver Creek near Lonetree, Wyo.

Location.- Water-stage recorder, lat. 40°57', long. 110°11', in SW£ sec. 31, T. 3 N., R. 16 

K., 5UO feet north of forest boundary, 1 mile southwest of Hole-in-the-Rock. ranger station, and 7\ miles south of Lonetree.

Records available.- October 1948 to September 1949.

Extremes.- Maximum discharge during year, 523 second-feet June 18 (gage height, 3.57 feet); 

minimum not determined, occurred during period of ice effect.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

22" 21 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.4 

8.4 

8.1 

7.8 

9.1

8.8 

8.4 

8.8 

8.4 

8.1

8.1 

7.8 

7.8 

7.8 

8.8

8.1 

8.1 

7.5 

7.5 

7.1

6.5 

6.5 

6,8 

6.5 

6.3

6.3 

7.1 

6.8 

6.8 

6.5 

6.8

Nov.

7.1 

6.3 

5.8 

b6.0

' 6.2 

(*)

 5'.B 

> 5.0

Dec.

4.5 

<")

> 4.0

Jan.

 3.8

Feb.

3.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar yean 

apy

h.. .....................................

1. ......................................

ter year 1948-49 ...............

Mar.

(») 

' 4.0

Apr.

|,

b4.0

b4.2 

b4.5 

b4.7 

b5.4 

5.2

5.6 

6.0 

7.0 

6.8 

7.2

7.8 

8.4 

9.6 

10 

12

14 

17 

19 

20 

19

18 

17 

19 

23 

22

Secondfoot-days

235.8 

176.4 

134.0

-

117.8 

98.0 

124.0 

312.4 

2.1O7 

4,071 

1,308 

523 

271.9

9,479.3

May

21 

24 

3O 

34 

28

28 

27 

30 

36 

44

57 

73 

74 

89 

94

81 

66 

61 

60 

69

66 

61 

6O 

74 

105

112 

102 

116 

133 

136 

116

Maximum

9.1 

7.1

-

23 

136 

3O8 

98 

32 

13

3O8

June

97 

74 

62 

67 

64

63 

75 

125 

154 

164

2O9 

266 

2O9 

187 

179

212 

242 

280 

3O8 

166

125 

114 

1O2 

90 

84

84 

76 

70 

65 

58

July

54 

61 

69 

98 

91

67 

56 

50 

48 

53

46 

43 

42 

4O 

38

37 

37 

35 

35 

33

31 

29 

29 

28

27

25 

24 

22 

21 

20 

19

Minimum

6.3

-

21 

5tf 

19 

11

7.1

-

Aug.

19 

19 

20 

19 

23

24 

22 

23 

26 

32

22 

19 

17 

16 

16

15 

14 

14 

13 

13

12 

12 

13 

15 

13

13 

12 

12 

12 

12 

11

Mean

7.61 

5.88 

4.32

-

3TF

3.5 

4.0 

10.4 

68.0 

136 

42.2 

16.9 

9.06

26.0

Sept.

11 

11 

10 

9.8 

9.4

8.8 

8.4 

8.4 

8.8 

9.1

13 

9.8 

9.4 

10 

9.4

8.4 

7.8 

7.5 

7.5 

7.1

7.1 

7.1 

7.5 

7.5 

7.8

8.4 

8.1 

8.8

13 

12

Runoff In 

acre-feet

468 

350 

266

-

234 

194 

246 

620 

4,180 

8.07O 

2,590 

1,040 

539

18,800

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- Ho gage-height record Nov. 5 to Apr. 4, Apr. 1O-22, July 21^28; discharge computed on basis 

of 4 discharge measurementa, weather records, and records for West Pork Beaver Creek near Lonetree.
GREEN RIVER BASIN 209

East Fork Beaver Creek near Lonetree, Wyo.

Location.- Water-stage recorder, lat. 40°57', long. 110°10', In NEij sec. 6, T. 2 N. , R. 16 

E. , at forest boundary, 1 mile south of Hole-in-the-Rock ranger station and 1\ miles 

south of Lonetree.

Records available.- October 1948 to September 1949.

Extremes.- Maximum discharge during year, 37 second-feet July 28 (gage height, 1.71 feet); 

minimum daily, 3.1 second-feet on several days in January and February.

Remarks.- Records fair. No diversion above station. Flow partly regulated by Hoop Lake 

(capacity unknown), which receives water from Thompson Creek, a tributary to Burnt Fork.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

4.4 

4.2 

4.2 

4.0 

4.0

3.8 

3.8 

3.6 

3.6 

3.5

3.5 

3.3 

3.3 

3.3 

3.3

3.5 

3.5 

3.6 

3.6 

3.5

3.5 

3.5 

3.8 

3.8 

3.8

3.6 

3.6 

3.8 

4.0 

3.8 

3.8

Nov.

3.6 

3.8 

4.0 

4.0 

3.8

3.6 

3.6 

3.6 

3.5 

3.6

3.5 

3.5 

3.5 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.5

3.6 

3.5 

3.5 

3.8 

3.8

3.8 

3.6 

3.5 

3.6 

3.5

Dec.

3.8 

3.6 

3.6 

3.8 

3.6

3.6 

3.6 

3.5 

3.6 

3.6

3.6 

3.8 

3.8 

3.8

4.0

3.6 

3.3 

3.2 

3.2 

3.2

3.2 

3.2 

3.2- 

3.2 

3.2

3.2 

3.2 

3.2 

3.2 

3.2 

3.2

Jan.

3.2 

3.2 

3.2 

3.2 

3.2

3.2 3.3 ' 

3.2 

3.1 

3.1

3.1 

3.1 

3.2 

3.2 

3.2

3.2 

3.3 

3.2 

3.3 

3.2

3.3 

3.3 

3.3 

3.3 

3.3

3.3 

3.3 

3.2 

3.3 

3.2 

3.2

Feb.

3.2 

3.2 

3.1

3.1 

3.1

3.1 

3.1 

3.1 

3.1 

3.2

3.2 

3.2 

 3.2 

3.2 

3.2

3.2 

3.3 

3.3 

3.3 

3.3

3.2 

a3.2 

a3.2 

a3.2 

a3.2

a3.2 

a3.2 

a3.2

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year

ter year 1948-49 .......................

Mar.

a3.2 

3.2 

3.2 

3.3 

3.3

3.3 

3.3 

3.3 

3.3 

3.3

3.3 

3.3 

3.3 

3.5 

3.3

3.5 

3.6 

3.6 

3.8 

4.0

4.0 

4.0 

4.2 

4.2 

4.2

4.0 

4.0 

4.0 

4.0 

4.0 

4.0

Apr.

4.0 

4.0 

4.0 

4.0 

4.2

4.2 

4.4 

4.4 

4.6 

4.6

4.6 

4.7 

4.9 

4.9 

4.7

4.7 

4.9 

5.1 

5.1 

5.1

5.5 

6.0 

6.8 

7.2 

7.2

7.0 

7.8 

8.3 

9.3 

9.6

Secondfoot-days

114.5 

108.9 

107.0

-

100.0 

89.3 

112.5 

165.8 

480.9 

389.4 

460.8 

605 

183.4

2,917.5

May

9.3 

9.6

1011

11

11 

11

12

14 

14

17 

23 

27 

25 

24

22 

19 

18 

17 

17

16 

16 

15 

15 

15

15 

14

14 

14 

13 

12

Maximum

4.4

4.0 

4.0

3.3 

3.3 

4.2 

9.6 

27 

20 

35 

27 

12

35

June

12 

12 

12 

14 

13

13 

14 

14 

14 

14

15 

14 

14 

13 

13

12 

12 

12 

11 

11

1-1 

12 

17 

20 

17

13 

11 

9.9 

9.6 

9.9

July

9.6 

9.6 

9.6

10 

11

11 

10 

10 

11 

11

11 

11 

11 

11 

12

12 

12 

12 

12 

12

13 

13 

13 

14 

14

19 

27 

35 

33 

32 

29

Minimum

3.3 

3.5 

3.2

- j

3.1 

3.1 

3.2 

4.0 

9.3 

9.6 

9.6 

12 

3.6

3.1

Aug.

27 

27 

27 

25 

25

26 

26 

26 

27 

25

22 

21 

21 

20 

19

19 

19 

18 

17 

16

16 

15 

15 

14 

14

14

13 

13 

13 

13 

12

Mean

3.69 

3.63 

3.45

- I

3.23 

3.19 

3.63 

5.53 

15.5 

13.0 

14.9 

19.5 

6.11

7.99

Sept.

12 

12 

12 

11 

11

11 

11 

9.9 

8.3 

5.1

4.7 

4.6 

4.6 

4.4 

4.4

4.2 

4.2 

4.0 

4.0 

3.8

3.8 

3.6 

3.8 

3.8 

3.8

3.8 

3.8 

3.6 

3.6 

3.6

Runoff In 

acre-feet

227 

216 

212

-

198 

177 

223 

329 

954 

772 

914 

1,200 

364

5,790

a No gage-height record; discharge Interpolated.
210 GREEN RIVER BASIN

West Fork Beaver Creek near Lonetree, Wyo.

Location.- Water-stage recorder, lat. 40°57', long. 110°13', In SW£ sec. 35, T. 3 N., 

K. 15 E. , at. forest boundary, an eighth of a mile above confluence with Fellow Creek 

and 7j miles southwest of Lonetree.

Records available.- October 1948 to .September 1949.

Extremes.- Maximum discharge during year, 289 second-feet June 18 (gage height, 3.13

feet); minimum not determined, probably occurred during period of no gage-height record.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Station is above all diversions. No regulation.

Discharge, In second-feet, water year October 1948 to September 19*9

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

Z7 

28 

29 

30 

31

Oct.

7.0 

6.8 

6.0 

6.2 

6.8

6.4 

6.6 

7.0 

6.6 

6.4

6.0 

5.8 

5.6 

6.0 

7.2

5.8 

5.8 

6.0 

6.0 

5.5

5.2 

5.0 

5.3

5.0 

4.8

4.8 

5.5 

6.0 

7.0 

6.2 

6.8

Nov.

6.6 

6.0 

5.8 

b5.8 

b5.8

b5.8

' 5.8 

(*)

> 5.0

1"

Dec.

4.3

3.8

(*) 

3.3

2.8

Jan.

2.8 

2.5

Feb.

> 2.5

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year

1..... ..................................

ter year 1948-49 ...............

Mar.

2.5 

(*)

2.7

Apr.

2.7 

(*)

2.8 

3.5 

4.0 

3.5

4.0 

5.0 

5.2 

5.1 

5.0

5.6 

6.4 

7.0 

8.0 

8.0

9.0 

10 

11 

13 

14

12 

11 

12 

16 

14

Secondfoot-days

188.1 

162.6 

112.1

-

80.5 

70.0 

80.7 

223.0 

1,054 

2,617 

1,257 

450.4 

201.3

6,496.7

May

11

14 

20 

20 

14

13 

15 

17 

20 

24

29 

34 

31 

36 

40

36 

30 

31 

31 

34

31 

30 

31 

41 

58

60 

55 

60 

66 

64 

58

Maximum

7.8

6.6

-

16 

66 

188 

84 

25 

8.8

188

June

52 

45 

43 

51 

52

51 

56 

66 

69 

73

107 

142 

115 

103 

102

115 

130 

167 

188 

129

100 

96 

90 

76 

75

80 

70 

64 

59 

51

July

48 

55

64 

84

76

62 

54 

47 

48 

49

42

41 

38 

38 

37

36 

37 

36 

36 

36

34 

31 

30 

30 

28

V 

2E 

24 

22 

IS. 

20

Minimum

4.8

-

11 

43 

20 

8.3 

5.3

-

Aug.

20 

19 

19 

19 

22

22 

20 

22 

24 

25

19 

17 

16 

15 

14

13 

12 

12 

11 

10

9.3 

9.0 

9,6 

11 

9.0

a. 8

8.6 

8.6 

8.6 

8.6 

8.3

Mean

6.1 

5.4 

3.6

-

2.6 

2.5

2.6 

7.4 

34 

87.2 

40.5 

14.5 

6.7

17.8

Sept.

8.6 

8.3 

7.6 

7.6 

7.2

6.8 

6.8 

7.0 

6.8 

7.6

8.6 

7.0 

7.2 

7.4 

6.6

6.2 

5.6 

5.6 

5.6 

5.6

5.3

5.3 

5.5 

5.6 

5.6

5.5

6.0 

6.2 

8.8 

7.8

Hunoff in 

acre-feet

373 

323 

222

-

160 

139 

160 

442 

2,090 

5,190 

2,490 

893 

399

12,880

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record kov. 7 to Apr. 24; discharge computed on basis of 4 discharge measurements, weather records, and records for nearby stations.
GREEN RIVER BASIN 211

Burnt Fork near Burntfork, Wyo.

Location.- Water-stage recorder, lat. 40°57', long. 110°04', in SW£ sec. 31, T. 3 N., R. 

IV il., half a mile west of Ashley National Forest boundary and 7 miles southwest of 

Burntfork.

Drainage area.- 52.8 square miles.

Records available.- April 1943 to September 1949 (no winter records 1943-45).

Extremes.- Maximum discharge during year, 561 second-feet June 20 (gage height, 8.07 feet), 

rrom rating curve extended above 230 second-feet; minimum not determined, occurred 

during period of no gage-height record.

1943-49: Maximum discharge, 740 second-feet June 26, 1944, from rating curve 

extended above 200 second-feet; maximum gage height, 8.07 feet June 20, 1949-, minimum 

not determined, occurred during period of no gage-height record.

Remarks - Records good except those for period of no gage-height record, which are poor. 

No diversion or regulation.

Discharge, In second-feet, water year October 1948 to September 1943

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.0 

7.0 

6.7 

6.7 

8.5

*8.0 

8.0 

7.5 

7.0 

6.7

6.4 

7.0 

5.8 

5.5 

5.5

5.5 

6.4 

5.2 

4.9

4.6

4.6 

4.6 

4.6 

4.3 

4.3

5.2

5.2 

5.2 

5.2 

5.5 

5.2

Nov.

4.9 

4.9 

4.9 

3.4 

4.2

*4.6 

S.O 

5.0 

4.6 

4.8

5.2 

5.6 

5.8 

5.8

5.6

5.4 

5.2 

5.2

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

4.8 

4.7 

4.6

Dec.

4.0

Jan.

' 4.0

Feb.

> 3.5

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-4~9 ...............

Mar.

 3.5

Apr.

3.5 

3.2 

3.2 

3.4 

3.8

4.4 

4.8 

5.2 

5.6 

6.6

7.0 

6.4 

7.8 

11 

9.8

9.6 

11 

13 

12 

13

14 

*14 

17 

23 

23

19 

19 

22 

23 

21

Secondfoot-days

183.8 

149.2 

124.0

10,350.3

124.0 

98.0 

108.5 

339.3 

2,352 

5,408 

2,804 

1,911 

550.0

14,151.8

May

17 

22 

37 

35 

21

23 

22 

23 

30 

43

53 

73 

76 

90 

97

78 

67 

67 

67 

73

64 

61 

79 

104 

134

147 

134 

142 

168 

165 

140

Maximum

8.5 

5.8

344

23 

168 

362 

142 

83 

45

362

June

126 

108 

98 

104 

112

107 

109 

148 

168 

162

197 

260 

242 

229

206

215 

244 

276 

362 

332

-242 

206 

156 

147 

139

150 

142 

142 

140 

139

July

126 

121 

130 

142 

140

124 

105 

104 

104 

116

97 

97 

93 

94 

84

84 

83 

83 

81

80

76 

74 

73 

72 

68

63 

64 

64 

61 

50 

51

Minimum

4.3 

3.4

-

3.2

17 

98 

50 

46 

9.5

-

Aug.

53 

51 

61 

60 

59

61 

65 

65 

66 

63

65 

83 

78 

72 

72

72 

70 

68 

64 

62

63 

62 

58 

59 

54

54 

53 

51 

50 

51 

46

Maan

5.93

4.97 

4.0

28.3

4.0 

3.5 

3.5 

11.3 

75.9 

180 

90.5 

61.6 

18.3

38.8

Sept.

45 

44 

41 

38 

31

21

20 

19 

19 

20

24 

19 

14

16 

14

13 

11 

12 

11 

10

9.5 

9.5 

9.5 

9.5 

9.5

10 

10 

9.5 

15 

16

Runoff In 

acre-feet

365 

296 

246

20,530

246 

ISA 

215 

673 

4,670 

10,730 

5,560 

3,790 

1,090

28,080

Peak discharge (base, 100 sec.-ft.).- May 14 (9 p.m.) 131 sec.-ft.; May 29 (9 p.m.) 213 sec.-ft.j 

June 12 (12:30 a.m.; 360 sec.-ft. ; June 20 (ll a.m.) 561 sec.-ft.

* Winter discharge measurement made on this day.

Mote.- Ho gage-height record Nov. 5 to Apr. 21 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 1 discharge measurement, weather records, and records 

for stations on nearby streams.
212 GREEN RIVER BASIN

Sheep Creek near Manila, Utah

Location.- Water-stage recorder, lat. 40°53', long. 109*54', In NE£ sec. 28, T. 2 N., R. 

IB E., 350 feet downstream from confluence of North and South Forks and 12 miles southwest of Manila.

Drainage area.- 45.9 square miles.

Records available.- October 1942 to September 1949 (no winter records In 1943).

Extremes.- Maximum discharge during year, 499 second-feet June 19 (gage height, 5.48 feet), 

from rating curve .extended above 200 second-feet; minimum dally, 0.4 second-foot Aug. 

15-17.

1942-49: Maximum discharge, 1,020 second-feet May 19, 1948 (gage height, 6.05 feet), 

from rating curve extended above 250 second-feet; minimum dally, 0.1 second-foot on 

many days In September and October 1946.

Remarks.- Records good except those for period of Ice effect or no gage-height record, 

which are fair. One large diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

SI22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.2 

7.8 

7.8 

7.8 

*9.4

9.0 

8.6 

8.6 

8.2 

7.8

7.8 

7.8 

7.8 

7.8 

8.2

7.8 

10 

7.0 

7.0 

7.0

9.4 

6.8 

6.5 

6.2 

6.2

6.5 

6.5 

6.2 

6.2 

6.2 

5.8

Nov.

6.0 

6.0 

6.0 

5.3 

4.5

(*) 

6.5

Dec.

» 6.5

Jan.

> 7.0

Feb.

6.5

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

6.0

Apr.

6.0 

6.0 

5.5 

6.0 

7.5

9.0 

10 

10 

12 

14

13 

12 

15 

23

17

17 

26 

24 

22 

24

27 

25 

45 

37 

33

31 

32 

34 

43 

40

Secondfoot-days

233.9 

190.3 

201.5

8,231.5

217.0 

182.0 

186.0 

626.0 

2,058 

3,368 

805.3 

17. 3 

21.2

8,106.5

May

34 

42

*61 

59 

23

22 

28 

32 

50 

60

70 

120 

125 

120 

125

92 

66 

58 

49 

58

44 

39 

42 

54 

74

77 

79 

89 

100 

96 

70

Maximum

10

748

45 

125 

340 

73 

.7 

.9

340

June

40 

28 

25 

62

66

64 

66 

96 

134 

111

150 

284 

232 

220 

200

196 

192 

236 

340 

144

93 

78 

68 

55 

45

42 

38 

26 

20

17

July

15 

14 

16 

20 

20

17 

12 

9.3 

10 

12

20 

73 

70 

69 

62

60 

59 

56 

56 

53

50 

24 

3.1 

.8 

.7

.6 

.6 

.6 

.6 

.5 

.5

Minimum

5.8

.7

5.5 

22 

17 

.5 

.4 

.6

.4

Aug.

0.5 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.5 

.5 

.5 

.5 

.4

.4 

.4

.5 

.5 

.5

.5 

.5 

.6 

.6 

.6

.6

.6 

.6

.7 

.7 

.7

Mean

7.55 

6^34 

6.5

22.5

7.0 

6.5 

6.0 

20.9 

66.4 

112 

26.0 

.56 

.71

22.2

Sept.

0.8 

.8 

.7 

.7 

.7

.6 

.6 

.6 

.6 

.7

.6 

.6 

.6 

.6 

.6

.6 

.7 

.7 

.7 

.8

.8 

.8 

.8 

.7 

.8

.8 

.7 

.8 

.9 

.8

Runoff in 

acre -feet

464 

377 

400

16,320

430 

361 

369 

1,240 

4,080 

6,680 

1,600 

34 

42

16,080

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 4 to Dee. 2. No gage-height record Dec. 3 to 

Apr. 23 (stage-discharge relation affected by ice during most of period)) discharge computed on basis 

of 1 discharge measurement, weather records, and unpublished records for staff gage 5 miles downstream.
GREED RIVER BASIN 213

Sheep Creek at mouth, near Manila, Utah

Location.- Water-stage recorder, lat. 40°55'50", long. 109°38'55', in NE^ sec. 10 (unsurveyed), T. 2 N., R. 20 E., 1 mile upstream from mouth and 6 miles southeast of 

Manila.

Drainage area.- Ill square miles.

Records available.- October 1946 to September 1949.

Extremes.- Maximum discharge during year, 341 second-feet June 19 (gage height, 3.13 feet, 

minimum not determined, probably occurred during period of no gage-height record.

1946-49: Maximum discharge, 450 second-feet May 20, 1948 Tgage height, 3.49 feet), 

from rating curve extended above 230 second-feet; minimum, 6.7 second-feet Aug. 16, 

1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation including transbasin diversions 

for irrigation in vicinity of Manila, via Sheep Creek canals. Some storage in several 

small mountain lakes.

Discharge, in second-feet, water year October 1948 to' September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

13 

12 

12 

13 

16

16 

16 

16 

16 

16

15 

16 

16 

16 

16

16 

15 

16 

16 

15

15

17 

16 

16 

15

15 

15 

15 

15 

14 

14

Octo 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Hov.

15 

15 

15

14 

15

13 

15 

15 

15 

16

15 

15 

15 

14 

14

14 

*15 

16 

b!5 

b!4

b!5 

b!5 

15 

14 

15

b!5

b!4 

b!4 

b!4 

b!4

Dec.

b!4 

 b!2

I 

Jan.

> 11

Feb.

11

Month

lendar year 1948

1.......................................

ter year 1948-49 ...............

Mar.

(*) 

13

. 15

Apr.

15 

15 

15 

16

16

16 

16 

18 

16 

14

16 

18 

19 

18 

16

18 

20 

22 

25 

25

28 

39 

53 

62 

56

48 

49 

53 

62 

66

Secondfoot-days

470 

441 

397

10,170.3

341 

308 

435 

870

3, SOS 

4,164 

1,184 

368 

296.3

12,583.3

May

53 

54 

76 

91 

59

41 

47 

54 

77 

96

105 

191 

193 

182 

193

161 

121 

102 

85 

96

82 

68 

65 

69

91

114 

127 

147 

161 

168 

140

Maximum

17 

16

364

66 

193 

294 

87 

16 

11

294

June

102 

76 

57 

87 

93

96 

93 1 

118 

189

158

176 

264 

258 

249 

231

226 

226- 

220 

294 

222

152 

109 

91

78 

64

59 

58 

48 

37 

33

July

28 

27 

28 

33 

36

36 

27 

21

21 

27

24 

69

87 

80 

77

77 

73 

67 

67 

63

59

50 

18 

14 

12

11

10 

11 

10 

10

11

Minimum

12 

14

-

14

41 

33 

10 

10 

8.9

-

Aug.

11 

10 

11 

11 

12

12 

12 

14 

16 

14

13 

13 

12 

13 

13

13 

12 

12 

12 

12

12 

12 

12 

12 

11

11 

10 

10 

10 

10 

10

Mean

15.2

14.7 

12.8

27.8

11 

11 

14.0 

29.0 

107 

139 

38.2 

11.9 

9.9

34.5

Sept.

10 

11 

11 

11 

10

10 

10 

9.6 

10

11

11 

10 

9.8 

10 

9.5

8.9 

8.9 

9.1 

9.3 

9.1

9.1 

9.4 

9.3 

9.8 

9.5

9.5 

9.5 

9.8 

10 

11

Runoff In 

acre-feet

932 

8T5

787

20,160

676 

611 

863 

1,730 

6,560 

8,260 

2,350 

730 

588

24,960

Winter discharge measurement raede on this day. 

b Stage-discharge relation affected by ice.

Note.- Ho gage-height record Dec. 27 to Apr. 5; discharge computed on basis of 1 discharge measurement, weather records, and records for nearby streams.
214 GREEN RIVER BASIN

Carter Creek near Manila, Utah

Location.- Water-stage recorder, lat. 40°50', long. 109°50' in NW£ sec. 7, T. IN., R. 

19 K. (unsurveyed), 2 miles above mouth of Beaver Creek, 3 miles southwest of Ute 

Mountain lookout tower, and 12 miles southwest of Manila.

Records available.- October 1948 to September 1949.

Extremes.- Maximum daily discharge during year, 130 second-feet June 19; minimum not 

determined, occurred during period of no gage-height record.

Remarks.- Records good except those for periods of ice effect or doubtful or no gageheight record, which are poor. No diversion or regulation above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.6 

3.6 

3.6 

3.7 

4.1

3.9

3.7 

3.7 

3.6 

3.4

3.4 

3.4 

3.4 

3.4 

3.6

3.4 

3.1 

3.3 

3.4 

1.3

3.3 

3.1 

3.1 

3.1 

3.1

3.1 

3.1 

3.3 

3.3 

3.1 

3.0

Nov.

3.0 

3.1 

3.1 

3.1 

b2.7

. 2.5 

(*)

' 2.2

Dec.

 1.7

(*) 

' 1.5

Jan.

> 1.2

Feb.

' 1.1

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

Jane 

July 

Augu 

Sept

Via

lendar year

ter year 1948-49 ...............

Mar.

1.3

. 1.5

Apr.

1.5

1.6 

1.7 

1.7 

1.8

1.9 

2.0

2.2 

2.4 

2.6

2.8 

3.1 

3.5 

3.3 

3.2

3.5 

3.7 

4.0 

4.5 

5.0

5.8 

6.5

7.0 

7.4 

7.4

d6.5 

d6.8 

d7.3 

d7.8 

d7.7

Secondfoot-days

105.2 

74.5 

49.5

-

37.2 

30.8 

44.5 

126.2 

967.9 

2,002 

742 

274.3 

145.8

4,599.9

May

d7.5 

d7.5

de.o

d8.4 

d8.2

d8.7 

d9.6 

dlO 

11 

13

16 

27 

30 

32

42

34 

31 

35 

30 

31

26 

23 

24 

33

48

62

62 

70 

79 

79 

62

Maximum

4.1

3.1i

-

7.8 

79 

130 

41 

16 

5.8

130

June

50

42 

35 

37 

35

34 

34 

48 

71 

65

75 

91 

87 

84 

80

83 

89 

101 

d!30 

dllO

d95 

d81 

d74 

d65 

d57

d56 

d56 

d49 

46 

42

July

40 

38 

39 

41 

39

36 

33 

31 

32 

36

30

28 

25 

24 

22

22 

21 

20 

20 

18

17 

16 

15 

15 

14

13 

12 

12 

11 

11 

11

Minimum

3.0

-

1.5 

7.5 

34 

11 

6.0 

4.1

-

Aug.

10 

10 

9.4 

9.4

11

10

10 

16 

14

12

12 

11 

10 

9.4 

9.0

8.2 

8.2 

7.9 

7.6 

7.2

7.2 

6.9 

6.9 

6.9 

6.9

6.6 

6.3

6.0 

6.3 

6.0

6.0

Mean

3.39 

2.48

1.6

-

1.2 

1.1 

1.44 

4.21 

31.2 

66.7 

23.9 

8.85 

4.86

12.6

Sept.

5.8 

5.8 

5.8 

5.5 

5.5

5.3 

5.3 

5.3 

5.1 

5.8

5.8 

5.3 

5.1 

4.9 

4.9

4.6 

4.6 

4.4 

4.4 

4.4

4.2 

4.2 

4.2 

4.4 

4.2

4.1 

4.1 

4.2 

4.2 

4.4

Runoff in 

acre-feet

209 

148 

98

-

74 

61 

88 

250 

1,920 

3,970 

1,470 

544 

289

9,120

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

dj Doubtful gage-height record; discharge computed on basis of discharge measurement and records for 

nearby streams.

Note.- No gage-height record Nov. 6 to Apr. 25 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 2 discharge measurements, weather records, and records for nearby streams.
CfREEN RIVER BASIN 215

Carter Creek at mouth, near Manila, Utah

Location.- Water-stage recorder, lat. 40°53'25", long. 109°35'20", in SEij sec. 19, T. 2 

M., K. 21 E. (unsurveyed), 600 feet upstream from mouth and 10 miles-southeast of 

Manila.

Drainage area.- 110 square miles.

Records available.- October 1946 to September 1949.

Extremes.- Maximum discharge during year, 646 second-feet June 12 (gage height, 3.71 

feet); minimum not determined, occurred during period of no gage-height record. 

1946-49: Maximum discharge, that of June 12, 1949; minimum not determined.

Remarks.- Records good except those for periods of doubtful or no gage-height record, 

which are poor.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

18 

17 

18

20

19 

18 

18 

18 

18

18 

18 

17; 

18 

19

18 

17 

18 

18 

18

17 

17 

17 

17 

17

17 

17 

18 

18 

17 

17

Nov.

17 

18 

18 

15 

13

16 

17 

15 

19 

16

17 

17 

16 

16 

17

16 

*16

> 16

Dec.

' 14

(*) 

' 12

11

Jan.

11 

« 10

Feb.

9.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

10 

12

I"

Apr.

"

*18 

20 

22 

22 

24

27 

33

41 

38 

35

41 

55 

69 

80 

81

88 

108 

131 

139 

133

129 

127 

127 

131 

133

Secondfoot -days

550 

487; 

396

22,448

325 

266 

370 

1,932 

8,793 

10,861 

3,357 

1,245 

744

29,326

May

121 

119 

127 

131 

133

127 

131 

176 

196 

198

230 

396 

423 

416 

462

416 

379 

363 

331 

334

310 

281 

256 

256 

287

313 

331 

356 

399 

416 

379

Maximum

20

458

139 

462 

574. 

184 

61 

30

574

June

344 

319 

307 

32-2 

292

275 

262 

289 

376 

363

413 

574 

523 

487 

480

480 

494 

512 

534 

490

403 

356 

319 

289 

259

245 

238 

210 

d£05 

201

July

184 

177 

175 

173 

170

158 

149 

139 

133 

145

131 

123 

118 

110 

106

105 

103 

93 

89 

81

75 

74 

71 

68 

65

64 

61 

57 

55 

54 

51

Minimum

17

-

119 

201 

51 

30 

22

-

Aug.

49 

48 

48 

46 

49

47 

44 

59 

61 

53

46 

43 

40 

41 

39

37 

37 

37 

37 

35

34 

33 

33 

35 

33

31 

30 

30 

30 

30 

30

Mean

17.7 

16.2 

12.8

61.3

10.5 

9.5 

11.9 

64.4 

284 

362 

108 

40.2 

24.8

80.3

Sept.

30 

29 

30 

29 

27

27 

26 

26 

26 

27

30 

26 

26 

25 

24

24 

22 

22 

22 

23

22 

22 

22 

22 

22

22 

22 

22 

23 

24

Runoff in 

acre-feet

1,090 

966 

785

44,520

645 

528

734 

3,830 

17 , 440 

21,540 

6,660 

2,470 

1,480

58,170

Peak discharge (base, 400 sec.-ft.).- May 15 (4 a.m.) 516 sec.-ft.; May 30 (3 a.m.) 458 sec.-ft.; 

June 12 (5:30 a.m.) 646 sec.-ft.; June 19 (3 a.m.) 597 sec.-ft.

* Winter discharge measurement made on this day.

d Doubtful gage-height record; discharge interpolated.

Note.- No gage-height record Nov. 18 to Apr. 5; discharge computed on basis of 1 discharge measurement, weather records, and records for nearby streams.

939921 O - 51 - 15
216 GREEN RIVER BASIN

Red Lake -Outlet near Manila, Utah

Location.- Water-stage recorder, lat. 40°51', long. 109°48', In sec. 5, T. IN., R. 19 

E. (unsurveyed) three-eighths of a mile upstream from mouth and 11 miles southwest of 

Manila.

Records available.- October 1945 to September 1949 (discontinued).

Extremes.- Maximum discharge during year, 175 second-feet June 19 (gage height, 2.64 feet); 

minimum not determined.

1945-49: Maximum discharge that of June 19, 1949; minimum not determined.

Remarks.- Records good except those for periods of ice effect Lor no gage-height record, 

wnicn are poor. No diversion or regulation above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 4' 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30

31

Oct.

3.6 

3.6 

3.6 

3.8 

4.3

3.9 

3.8 

3.6 

3.6 

3.5

3.6 

3.5 

3.5 

3.5 

3.8

3.6 

b3.5 

3.5 

3.4 

3.2

3.1 

3.2 

3.1 

3.1 

3.0

3.0 

3.0 

3.1 

3.0 

2.9 

3.0

Nov.

3.0 

3.0 

3.0 

t>2.9 

b2.8

b2.8 

b3.0 

b2.8 

b2.9 

b2.9

b2-7 

b2.5 

2.3 

2.3 

2.3

*2.2 

b2.3 

b2.3 

b2.2 

2.4

2.2 

2.1 

2.0 

2.0 

2.0

2.0 

1.9 

1.9 

1.9 

2.0

Dec.

2.0 

(*)

Jan.

1JB

Feb.

1.5

Month

Octo 

Nove 

Dece

Ca

janu 

Febn 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

1.. .....................................

ter year 1948-49 ...............

Mar.

1.5 

2.0

Apr.

2.0 

2.1 

2.2 

2.3 

2.5

2.6 

2.7 

2.9 

3.1 

3.3

3.6 

4.0 

4.5 

4.3 

4.2

4.5 

5.0 

5.5 

6.0 

7.0

8.0 

9.0 

10 

12 

13

13 

11 

12 

14 

13

Secondfoot -day 8

105.9 

72.6 

62.0

3,210.0

49.6 

42.0 

57.0 

189.3 

835 

2,155 

866 

273.4 

158.9

4,866.7

May

12 

14 

19 

20 

16

13 

12 

12 

13 

17

20 

25 

29 

34 

39

32 

26 

29 

26 

29

23 

21 

22 

28 

33

38 

39 

44

53 

53

44

Maximum

4.3 

3.0

80

14 

S3 

160 

54 

12 

6.6

160

June

38 

34 

32 

33 

33

33 

32 

42 

55 

51

66 

85 

75 

77 

77

85 

102 

125 

160 

131

110 

100 

92 

83 

72

71 

71 72 ' 

62 

56

July

54 

50 

51 

50

49

47 

42 

39 

37 

36

31 

30 

28 

26 

24

25 

24 

21 

20 

19

18 

17 

17 

16 

15

15 

14 

13 

13 

13 

12

Minimum

2.9 

1.9

-

2.0 

12 

32 

12 

6.8 

4.4

-

Aug.

12 

12 

11 

11 

11

10 

10 

12 

11 

10

9.2 

8.7 

8.4 

8.7 

8.4

8.4 

8.1 

8.1 

8.1 

7.8

7.5 

7.5 

7.8 

7.8 

7.5

7.1 

7.1 

6.8 

6.8 

6.8 

6.8

Mean

3.42 

2.42 

2.0

8.77

1.6 

1.5 

1.64 

6.3; 

26.9 

71.8 

28.0 

8.82 

5.3

13.3

Sept.

6.6 

6.6 

6.6 

6.4 

6.2

6.0 

5.7 

5.7 

5.7 

6.4

5.7 

5.3 

5.3 

5.3

5.1

5.1 

5.0 

5.0 

4.S

4.8

4.8 

4.8 

4.6 

4.6 

4.6

4.4 

4.4 

4.4

4.6

4.4

Runoff In 

acre-feet

210

144 

123

6,370

98 

83 

113 

375 

1,660 

4,270 

1,720 

542 

315

9,650

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 25 to Apr. 25j discharge computed on basis of 1 discharge measurement, weather records, and records for nearby streams.
GREEN RIVER BASIN 217

Yampa River at 'Steamboat Springs, Colo.

Location.- Water-stage recorder, lat. 40°29', long. 106°50', in sec. 17, T. 6 N., R. 84 

W., 30 feet downstream from First Street Bridge in Steamboat Springs, a quarter of a 

mile upstream from Soda Creek. Datum of gage is 6,696.23 feet above mean sea level, 

adjustment of 1912.

Drainage area.- 604 square miles.

Records available.- May 1904 to October 1906, October 1909 to December 1913, January 1914 

to September 1926 (monthly discharge only), and October 1933 to September 1949 in 

reports of Geological Survey. May 1904 to October 1906 and March 1910 to September 

1949 in reports of State engineer.

Average discharge.- 42 years, 481 second-feet.

Extremes.- Maximum discharge during year, 3,680 second-feet June 18 (gage height, 5.54 

reet); minimum daily, 84 second-feet Sept. 9.

1904-6, 1909-49: Maximum discharge, 6,820 second-feet June 14, 1921 (gage height, 

7.08 feet); minimum daily, 4 second-feet Sept. 8, 1934, Sept. 10-13, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Revisions.- W 764: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

148 

130 

118 

115 

122

169 

160 

152 

163 

184

178 

158 

145 

125 

122

142 

145 

138 

142 

145

150 

158 

138 

130 

138

138 

135 

132 

150 

158 

158

Nov.

128 

115 

120 

128 

108

115 

132 

128 

133 

125

130 

148 

*150 

148 

140

140 

130 

140 

125 

140

150 

140 

150 

150 

145

140 

140 

120 

125 

130

Dec.

135 

135 

140 

140 

130

135 

130 

135 

13O 

135

135

135 

135 

*135 

135

118 

125 

128 

115 

125

125 

130 

130 

120 

100

110 

120 

130 

120 

105 

110

Jan.

132 

163 

166 

125 

134

140 

138 

130 

125 

150

142 

158 

122 

125 

125

120 

100 

120 

110 

140

150 

125 

125 

120 

115

110 

128 

145 

105 

122 

130

Feb.

140

125 

118 

110 

blOS

blOO 

bl!8 

blOS 

blOO 

110

108 

108 

135 

bllO 

102

98 

112 

132 

130 

132

100 

1O8 

100 

105 

102

108 

120 

*125

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

lendap year 1948

ter year 1948-49 .......................

Mar.

115 

135 

135 

132 

160

172 

184 

184 

181 

169

163 

163 

169 

1S5 

150

172 

187 

205 

196 

223

247 

241 

226 

214 

202

202 

208 

217 

202 

202 

193

Apr.

211 

235 

226 

235 

280

380 

451 

540 

700 

670

630 

570 

710 

660 

500

580 

660 

780 

940 

1,080

980 

1,070 

1,150 

1,250 

1,350

1,420 

1,460 

1,560 

1,630 

1,560

Secondfoot-days

4,486 

4,013 

3,931

171,568

4,040 

3,169 

5,704 

24,468 

57,420 

68,880 

13,054 

4,459 

3,025

196,649

Peak discharge (base. 3,000 sec. -ft.).- May 30 (3 a.m.

May

1.27C 

1.09C 

1.28C 

1,64C 

1.84C

1.64C 

1,35C 

1,22C 

1,16C 

1.24C

1,51C 

1,970 

2,25C 

2,02C 

2,310

2.39C 

2,20C 

1.90C 

1.75C 

1.82C

1,56C 

1,56C 

1.47C 

1,58C 

1,920

2,270 

2,540 

2,490 

2,800 

2,810 

2,570

Maximum

184 

150 

140

3,950

166 

140 

247 

1,630 

2,810 

3,070 

962 

196 

140

3,070

I 3,010 sec.

June

2,240 

1,910 

1,700 

1,900 

2,550

2,490 

2,370 

2,610 

2,740 

2,690

2,890 

3,050 

3,020 

2,920 

2,720

2,810 

2,910 

3,070 

2,660 

2,470

2,240 

2,120 

2,010 

2,000 

1,680

1,530 

1,820 

1,480 

1,230 

1,050

July

930 

829 

843 

962 

890

787 

680 

600 

514 

493

493 

425 

371 

345 

310

272 

254 

241 

263 

267

241 

217 

199 

199 

214

232 

214 

202 

193 

190 

184

Minimum

115 

108 

100

35

100 

98 

115 

211 

1,090 

1,050 

184 

98 

84

84

-ft.j June

Aug.

148 

155 

166 

184 

196

166 

148 

148 

148 

181

181 

160 

155 

163 

145

142 

150 

152 

148 

135

122 

117 

114 

125 

135

130 

125 

115 

108 

99 

98

Mean

145 

134 

127

469

130 

113 

184 

816 

1,852 

2,296 

421 

144 

101

539

Sept.

97 

90 

91 

95 

100

98 

95 

88 

84 

90

98 

106 

140 

130 

115

108 

103 

98 

94 

92

95 

108 

105 

100 

96

94 

95

100 

108 

112

Runoff in 

acre-feet

8,900 

7,960 

7,800

340,300

8,010 

6,290 

11,310 

48,530 

113,900 

136,600 

25,890 

8,840 

6,000

390,000

12 (12:15 a.m.) 3,520

sec.-ft.; June 18 (1:30 a.m.; 3,680 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 8 to Dec. 13, Dec. 16, 19, 24-31, Jan. 4-8, 16-19, 26, 29, 30 

(stage-discharge relation affected by Ice during moat of periods); discharge computed on basis of 

1 discharge measurement, weather records, and records for nearby stations. No gage-height record 

Apr. 8-27, Aug. 22 to Sept. 30; discharge computed on basts of records for station near Maybell.
218 GREEN RIVER BASIN

Yampa River near Maybell, Colo.

Location.- Water-stage recorder, lat. 40°30', long. 108°02', in sec. 2, T. 6 N., R. 95 

W., a miles east of Maybell. Datum of gage is 5,900.23 feet above mean sea level, 

datum of 1929.

Drainage area.- 3,410 square miles.

Records available.- April-1904 to October 1905, June 1910 to November 1912, April 1916 

to September 1949 (monthly discharge only October 1917 to September 1933).

Average discharge.- 33 years (1916-49), 1,623 second-feet.

Extremes - Maximum discharge during year, 9,730 second-feet June 19 (gage height, 7.82 

reet j; minimum daily, 118 second-feet Oct. 1.

1904-5, 1910-12, 1916-49: Maximum discharge observed, 17,900 second-feet May 19, 

1917 (gage height, 10.4 feet, site and datum then in use, from floodmarks), from rating 

curve extended above 12,000 second-feet; minimum daily, 2 second-feet July 17-19, 1934.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. Diversions above station for irrigation.

Rating table, water year 1948-49, except period of loe effect 

(gage height, In feet, and discharge, In second-feet)

1.4 110 2.4 560 5.2 3,840 

1.5 135 2.7 790 6.5 6,5OO 

1.7 200 3.5 1,550 7.7 9,420 

2.1 370 4.5 2,800

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

118 

190 

280 

232 

196

190 

19O 

276 

284 

272

272 

300 

308 

284 

272

264 

272 

304 

320 

296

312 

308 

300 

288 

276

268 

264 

256 

248 

252 

264

Nov.

272 

268 

264 

284 

296

312 

284 

284 

308 

308

268 

304 

312 

300 

292

*272 

296 

330 

212 

200

288 

252 

270 

290 

280

270 

250 

250 

25O 

260

Dec.

270 

270 

270 

270 

260

270 

260 

260 

260 

270

280 

280 

280 

280 

260

250 

260 

260 

250 

260

260 

260 

250 

250 

220

220 

240 

250 

250 

250 

230

Jan.

230 

240 

250 

250 

230

240 

250 

260 

260 

250

260 

260 

270 

270 

260

260 

240 

250 

240 

260

*260 

250 

250 

240 

240

230 

240 

250 

250 

260 

260

Feb.

260 

260 

270 

270 

270

270 

270 

280 

280 

290

290 

290 

260 

250 

270

290 

280 

280 

280 

280

300 

310 

310 

310 

*310

320 

350 

360

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

mber. ...... ... .....-..--.--.......-...

lendar year 1948

ter year 1948-49 .......................

Mar.

360 

360 

360 

380 

400

410 

430 

460 

490 

520

540 

540 

540 

560 

580

680 

780 

880 

960 

1,000

1,100 

1,110 

1,100 

1,080 

1,130

1,020 

970 

961 

925 

710 

718

Apr,

1 

1 

2 

2 

3,

2, 

2, 

3 

3 

2

1, 

2, 

2, 

3, 

3,

3, 

3, 

3. 

4, 

5,

5, 

6, 

6, 

6, 

7,

Secondfoot-days

8,156 

8,326 

8,000

577,195

7,760 

8,060 

22,054 

96,694 

212,910 

218,100 

60,558 

10,354 

5,325

666,297

Peak discharge (base, 7.OOO sec. -ft.).- Apr. 3O (5 a.ra

662 

686 

835 

871 

970

250 

670 

150 

760 

090

860 

590 

070 

300 

510

860 

080 

700 

320 

660

910 

550 

780, 

500 

440

970 

170 

300 

760 

420

May

7,040 

5,240 

4,560 

6,170 

7,660

7,660 

6,260 

5,040 

4,700 

4,780

5,640 

6,460 

7,660 

8,430 

8,000

8,540 

8,610 

8,020 

8,480 

7,280

6,760 

6,040 

5,950 

5,340 

5,440

6,170 

7,040 

7,880 

8,240 

8,870 

8,950

Maximum

320 

330 

280

11,000

270 

360 

1,130 

7,420 

8,950 

9,340 

4,110 

590 

280

9,340

June

8,240 

7,250 

5,950 

5,000 

5,360

6,720 

7,160 

6,760 

7,490 

8,070

8,380 

8,590 

8,900 

9,000 

8,640

8,120 

8,210 

8,870 

9,340 

9,110

S-,510 

7,760 

7,180 

6,900 

6,320

5,360 

5,380 

5,970 

5,160 

4,400

July

3,930 

3,710 

3,520 

3,550 

4,110

3,930 

3,390 

2,910 

2,600 

2,420

2,330 

2,230 

1,970 

1,780 

1,680

1,520 

1,370 

1,300 

1,240 

1,160

1,170 

1,180 

1,050 

934 

925

925 

898 

790 

726 

a680 

8630

Aug.

a590 

a550 

a520 

aSOO 

a470

454 

406 

394 

382 

394

436 

424 

400 

365 

335

312 

296 

288 

280 

276

256 

236 

220 

216 

208

200 

208 

204 

190 

179 

165

Minimum Mean

118 263 

200 278 

220 258

73 1,577

230 250 

250 288 

360 711 

662 3,223 

4,560 6,868 

4,400 7,270 

630 1,953 

165 334 

132 178

118 1,825

. ) 7,710 sec. -ft.; May 6 (6 a.m.)

Sept.

162 

156 

141 

135 

141

153 

150 

150 

138 

132

147 

153 

186 

280 

272

244 

228 

212 

193 

182

179 

186 

190 

182 

172

165 

162 

165 

179 

190

Runoff In 

acre-feet

16,180 

16,510 

15,870

1,145,000

15,390 

15,990 

43,740 

191,800 

422,300 

432,600 

120,100 

20,540 

10,560

1,322,000

8 070 sec.

ft.; May 17 (8 a.m.) 8,8Z<) sec.-ft.; May 30 (10.-3O p.m.) 9,260 sec.-ft.; June 13 (4:30 p.m.) 9,240 

sec.-ft.; June 19 (11 p.m.) 9,730 sec.-ft.

* Winter discharge measurement made on this day.

a No gage height record; discharge computed on basia of records for stations on nearby streams.

Note.- Stage-discharge relation affected by ice Nov. 23 to Mar. 21 (no gage-height record Jan. 2 

to Feb. 28; discharge computed on basis of 2 discharge measurements, weather records, and records 

for stations on nearby streams).
GREEN RIVER BASIN 219

Elk River at Clark, Colo.

Location.- Water-stage recorder, lat. 40°43', long. 106°55', in sec. 28, T. 9 N., R. 85

 W., Just downstream from bridge on State Highway 129 in Clark and 1 mile upstream from 

Cottonwood Gulch. Datum of gage is 7,267.75 feet above mean sea level (State Highway 

bench mark).

Drainage area. - 206 square miles.

Records available.- May 1910 to November 1913, December 1913 to September 1922 (monthly

 discharge only'), published as Elk River near Clark, and October 1933 to September 1949 

in reports of Geological Survey. May 1910 to September 1922 and April 1930 to September 

1949 in reports of State engineer.

Average discharge.- 31 years, 360 second-feet,

Extremes.- Maximum discharge during year, 2,860 second-feet June 18 (gage height, 4.78 

feet ); minimum daily, 50 second-feet Feb. 22, 23.

1910-22, 1930-49: Maximum daily discharge, 4,470 second-feet June 6, 9, 1912; minimum discharge observed, 22 second-feet Apr. 7, 1935 (gage height, 0.62 foot).

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. Practically no diversion or regulation.

Rating tables, water year 1948-49, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Oct. 1-26)

Oct. 1 to Mar. 15, 

Aug. 7 to Sept. 30

0.8 

.9

1.1 

1.3

0.8 

1.0 

1.3 

1.6

140

218

Mar. 16 to Aug. 6

1.9 

2.2 

2.6 

3.0

315

440

675

965

3.6 

4.4

1,500

2,400

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

96 

72 

64 

59 

112

117 

94 

90 

102

100

88 

80 

75 

74 

94

110 

75 

82 

86 

83

75 

72 

71 

66 

62

62 

57 

59 

62 

64 

61

Nov.

62 

62 

69 

66 

66

74 

66 

53 

71 

80

80 

78 

*74 

69 

72

72 

66 

74 

b66 

b70

b86 

b80 

88 

86 

84

76 

72 

70 

76 

86

Dec.

76 

70 

75 

80 

76

82 

78 

82 

68 

77

84 

87 

76 

84 

82

72 

80 

74 

70 

82

80 

76 

70 

64 

54

64 

70 

72 

64 

58 

62

Jan.

68 

76 

70 

64 

62

65 

67 

64 

62 

68

64 

63 

*63 

64 

66

60 

63 

65 

62 

68

67 

64 

72 

70 

66

64 

70 

72 

63 

68 

70

Feb.

64 

66 

64 

64 

63

54 

64 

62 

58 

60

62 

72 

66 

54 

60

66 

62 

60 

53 

53

55 

50 

50 

*51 

51

54 

59 

62

Month

Oo to 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

56 

64 

66 

64 

64

68 

70 

70 

68 

64

64 

66 

68 

62 

56

*66 

68 

58 

56 

59

60 

58 

59 

59 

59

56 

59 

59 

59 

59 

52

Apr.

58 

58 

56 

58 

66

77 

*91 

110 

110 

108

115 

138 

158 

142 

136

140 

170 

221

267 

287

280 

298 

383 

586 

734

832 

974 

1,220 

1,310 

1,110

Secondfoot -days

2,464 

2,194 

2,289

106,787

2,050 

1,659 

1,916 

10,293 

43,625 

54,320 

19,767 

4,304 

2,153

147,034

May

740 

848 

1,250 

1,460 

1,190

893 

740 

754 

870 

1,120

1,380 

1,720 

1,790 

1,610 

1,830

1,700 

1,800 

1,710 

1,440 

1,360

1,310 

1,310 

1,150 

1,180 

1,340

1,590 

1,780 

1,920 

2,120 

1,960 

1,760

Maximum

117 

88 

87

2,380

76 

72 

70 

1,310 

2,120 

2,380 

1,350 

218 

86

2,380

June

1,610 

1,290 

1,120 

1,330 

1,590

1,660 

1,580 

1,710 

1,880 

2,000

2,060 

2,140 

2,150 

2,010 

1,950

2,140 

2,380 

2,340 

2,240 

2,240

2-, 040 

2,000 

1,930 

1,680 

1,510

1,620 

1,790 

1,540 

1,430 

1,360

July

1,330 

1,260 

1,200 

1,350 

1,330

1,070 

901 

832 

810 

775

714 

649 

610 

568 

532

496 

490 

455 

445 

485

418 

358 

342 

358 

358

315

290 

280 

264 

247 

235

Minimum

57 

53 

54

-

60 

50 

52 

56 

740 

1,120 

235 

80 

59

50

Aug.

218 

212 

210 

198 

188

182 

182 

205 

210 

185

164 

152 

143 

137 

126

119 

117 

117 

110 

106

100 

94 

90 

112 

108

98 

90 

86 

83 

82 

80

Mean

79.5 

73.1 

73.8

292

66.1 

59.2 

61.8 

343 

1,407 

1,811 

638 

139 

71.8

403

Sept.

75 

72 

74 

82 

74

71 

65 

61 

59 

71

73 

78 

86 

78 

76

72 

70 

66 

62 

66

72 

76 

72 

70 

68

67 

69 

72 

76 

80

Runoff In 

acre-feet

4,890 

4,350 

4,540

211, 80Q

4,070 

3,290 

3,600 

20,420 

86,530 

107,700 

39,210 

8,540 

4,270

291,600

Peak discharge (base. 1,900 sec ..-ft.). - May 29 (4 a.m.) 2,220 sec.-ft.; June 12 (11:30 p.m.) 2,270 

sec.-ft. ; June 18 (12:45 a.m.) 2,B6O sec.-ft.

* Winter discharge measurement made On this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 25 to Mar. 17 (stage-discharge relation affected by Ice during 

most or period), Sept. 11-30; discharge compute4 on basla of 3 discharge measurements, weather records, and records for nearby stations.
220 GREEN RIVER BASIN

Little Snake River near Dixon, Wyo.

Location - Water-stage recorder, lat. 41°02', long. 107°32', in sec 6 T 12 N R 90

c'Aooo 1 f* et <- Upstream from Wlllow Creek and 1 mile west of Dixon. Datum of gage'is

6,332.81 feet above mean sea level, unadlusted 

Drainage area.- 988 square miles. 

Records available - May 1910 to September 1923 (no winter records; monthly discharge onlv

March 1914 to iieptember 1916); March 1938 to September 1949. aj-scnarge oniy 

Average discharge.- 11 years (1938-49), 480 second-feet. 

Extremes.- Maximum discharge during year, 4,570 second-feet May 18 (gage height, 6.03

feet); minimum daily, 7.9 second-feet Aug. 22, 23.

1910-23, 1938-49: Maximum discharge observed, 8,960 second-feet May 23, 1920 (gage

height, 8.3 feet, datum then in use), from rating curve extended above 6,000 secondfeet; minimum daily, 0.6 second-foot Aug. 24-27, 1939. 

Remarks.- Records good except those below 25 second-feet and those for periods of ice

errect or no gage-height record, which are fair. Diversions above station for

irrigation.

-Rating tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Sept. 21-3O)

Oct. 1 to May 18 May 19 to Sept. 3O

°- 8 12 1-7 135 3.7 1,330 .0 7 1.6 44 3.1 440 

.9 20 2.0 220 3.9 1,54O .1 10 1.9 77 3.4 640 

1.0 29 2.3 350 4.4 2,110 .2 15 2.2 120 3.7 910 

! <; 52 2.7 560 5.* 3,550 .3 21 2.5 185 4.2 1,500 

1.4 80 3.1 820 6.9 4,350 .4 28 2.8 29O 5.8 4,160

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

36 

33 

22

a22 

a27

33 

41 

23 

21 

17

a!7 

al7 

a!7 

a!6 

a!6

18 

58 

27 

a22 

19

29 

28 

27 

25 

24

24 

23 

18 

17 

18 

39

Nov.

60 

70 

90 

1O8 

90

82 

111 

72 

»8O 

95

94 

95 

95 

890 

a 94

a96 

a98 

a96 

a80 

a72

a86 

a84 

a 90 

a94 

a94

92 

86 

80 

72 

78

Dec.

78 

78 

82 

78 

74

78 

*78 

8O 

80 

78

84 

86 

86 

88 

88

84 

86 

82 

80 

84

84 

82 

80 

72 

66

70 

76 

82 

80 

76 

74

Jan.

84 

80 

78 

74 

76

8O 

84 

*88 

98 

100

92 

84 

90 

90 

88

72 

66 

72 

70 

76

76 

8O 

84 

84 

80

78 

82 

82 

80 

78 

78

Feb.

80 

84 

86 

86 

84

82 

82 

84 

88 

9O

88 

86 

84 

82 

82

88 

90 

90 

88 

88

88 

 89 

90 

92 

94

92 

96 

100

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Peak discharge (base, 3,200 se6.-ft.).- AD

sec. -ft. ; May 18 (4 p.m.) 4,570 sec. -ft. j Ma

Mar.

98 

98 

1OO 

102 

1O4

106 

108 

110 

108 

110

108 

112 

116 

120 

128

140 

150 

172 

175 

 205

244 

23? 

240 

217 

196

187 

190 

178 

178 

181 

163

Apr.

1

1

1 

2

2

£ 

2 

3 

3

Secondfoot-days

774 

2,624 

2,474

147,413.5

2,524 

2,453 

4,676 

30,439 

100,270 

78,685 

6,750 

349.2 

456.2

232,474.4

181 

187 

190 

19O 

228

310 

595 

31O 

544 

494

494

596 

708 

590 

472

527 

626 

785 

940 

,020

916 

956 

200 

530 

O50

300 

460 

650 

190 

2OO

May

2,210 

1,920 

2,74O 

3,580 

3,640

2,72O 

2,310 

2,270 

2,27O 

2;660

2,900 

3,340 

3,440 

3,480 

3,640

3,730 

3,650 

4,280 

3,960 

3,480

3,170 

3,290 

2,990 

2,970 

2,990

3.22O 

3,510 

3,840 

4,080 

4,140 

3,850

Maximum

41 

111 

88

3,920

100 

100 

244 

3,200 

4,280 

3,870 

696 

18 

25

4,280

June

3,580 

3,260 

2,660 

2,460 

2,80O

2,970 

3,160 

3.36O 

3,530 

3,56O

3,630 

3,870 

3,790 

3,410 

3.020

2,940 

3,090 

3,170 

2,940 

2,680

2,340 

2,070 

1,870 

1,630 

1,400

1,290 

1,310 

1,140 

954

801

July

672 

58O 

532 

565 

696

572 

470 

385 

322 

262

350 

315 

182 

168 

146

120 

80 

66 

56 

54

46 

42 

38 

36 

41

38 

30 

25 

22 

20 

19

Aug.

18 

17 

16 

13 

12

13 

14 

14 

14

16

14 

14 

14 

12 

10

9.4 

9.1 

8.2 

8.5 

8.8

8.2 

7.9

7.9 

8.5 

8.5

9.1 

9.1 

9.1 

a8. 8 

a8.6 

a8.5

Minimum Mean

16 25.0 

60 87.5 

66 79.8

3.0 403

66 81.4 

80 87.6 

98 151 

181 1,015 

1,920 3,235 

801 2,623 

19 218 

7.9 11.3 

8.6 15.2

7.9 '637

r. 3O (7 a.m.) 3,520 sec. -ft.; May 5 (10 a.m. 

y 30 (12 m.) 4,300 sec. -ft.; June 12 (3 p.m.)

Sept.

a8.8 

a8.6 

a9.0 

a9.6 

a9.2

a9.o

a9 0 

a9.0 

a9.0 

a!2

a25 

a23 

a21 

a23 

a21

a!9 

a!7 

a!6 

a!5 

a!5

15 

14 

15 

15 

14

16 

17 

19 

21 

22

Runoff In 

acre-feet

1,540 

5,200 

4,910

292,400

5,010 

4,870 

9,270 

60,370 

198,900 

156,100 

13,390 

693 

905

461,200

) 3,940 

4,090 see.

* Winter discharge measurement made on t*-ls day.

a Mo gage-height record; discharge compu^d on basis of discharge measurement made Oct. 11, recorded range in stage, weather records, and *ecords for nearby stations.

Kote.- Stage-discharge relation affected bj ice Nov. 26 to Mar. 17 (no gage-height record Jan. 9 

to Feb. 21; discharge computed on basis of weather records and records for nearby stations).
GREEN RIVER BASIN 221

Little Snake River near Lily, Colo.

Location.- Water-stage recorder, lat. 40°32', long. 108°25', In sec. 20, T. 7 N., R. 98 

w. , t> miles north of Lily and 10 miles upstream from mouth.

Drainage area.- 3,730 square miles.

Records available.- June to August 1904, October 1921 to September 1949 (monthly discharge 

only uctooer 1927 to February 1934).

Average discharge.- 28 years (1921-49), 602 second-feet.

Extremes.- Maximum discharge during year, 5,550 second-feet May 18 (gage height, 5.95 

 reet); no flow Oct. 1-4, 10-15.

1904, 1921-49: Maximum discharge, 14,200 second-feet May 27, 1926 (gage height,

10.5 feet), from rating curve extended above 3,600 second-feet; no flow at times in

many years.

Remarks.- Records good except those for periods of ice effect or no gage-height record 

ana those below 10 second-feet, which are poor. Diversions above station for 

irrigation.

Rating table, water year 1948-49, except perioa of ice effect 

(gage height, In feet, and discharge, in Second-feet) 

(Shifting-control method used Nov. 9-21, 

Aug. 16-20, Sept. 19-30)

0.2 0 0.8 41 1.5 170 2.5 850 

.42 .9 54 1.6 202 3.6 1,980 

.5 8 1.0 69 1.7 241 4.6 3,250 

.6 18 1.2 103 1.8 290 5.4 4,470 

.7 29 1.3 122 2.1 510 5.7 5,050

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

1.0

17 

.7 

.3 

.3 

0

0 

0 

0 

0 

0

4.4 

3.2 

4.4 

7.4 

9.0

40 

57 

54 

56 

57

58 

58 

6O 

62 

60 

63

Nov.

64 

68 

72 

74 

64

83 

93 

72 

112 

101

72 

134 

155 

148 

131

 116 

116 

93 

33 

81

96 

110 

120 

1'30 130 

120 

130 

120 

100 

88

Dec.

96

130 

130

120 

110 

110 

110 

120

120 

120 

*120 

130 

130

120 

110 

120 

120 

120

130 

130 

110 

94 

90

88 

92 

lib 

120 

110 

110

Jan.

120 

120 

120 

110 

110

110 

120 

130 

130 

140

120 

120 

120 

120 

120

110 

96 

100 

110 

110

110 

120 

130 

120 

120

110 

110 

96 

88 

90 

92

Feb.

92 

90 

96 

98 

96

90 

96 

100 

110 

110

110 

120 

130 

130 

110

110 

110 

110 

120 

120

120 

120 

130 

130 

15b

160 

170 

170

Month

Octo 

Hove 

Dece

ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1946-49 .......................

Peak discharge (base, 3,500 sec. -ft.).- Ap

aec.-rt.; Hay Is (4 p.m.) 5,550 sec. -ft.; Ma 

4,320 sec. -ft.

Mar.

160 

150 

160 

160 

170

170 

170 

170 

180 

180

190 

180 

170 

180 

200

230 

270 

340 

330

310

350 

390 

380 

390 

360

320 

310 

300 

300 

270 

250

Apr.

4

1

1

3

1

1

1

1

1 

2

2, 

2, 

2, 

3, 

3,

Secondfoot-days

672.7 

3,026 

3,550

138,860.0

3,524 

3,298 

7,690 

40,054 

111,500 

83,920 

12,263 

624.0 

280.4

270,402.1

250 

280 

390 

500 

>598

805 

940 

100 

540 

000

500 

980 

930 

020 

010

796 

638 

598 

646 

823

970 

020 

960 

300 

120

690 

860 

870 

260 

640

May

3,580 

2,750 

2,080 

2,960 

4,030

4,220 

3,490 

2,790 

2,530 

2,540

2,840 

3,250 

3,920 

4,060 

4,120

4,450 

4,740 

4,870 

4,870 

4,620

4,080 

3,430 

3,490 

3,140 

3,000

3,030 

3,190 

3,480 

3,790 

3,980 

4,180

Maximum

63 

155 

130

3,910

140 

170 

390 

3,640 

4,870 

4,020 

1,300 

41 

26

4,870

r, 30 (9:30 a.m. 

y 31 (8:30 p.m.

June

3,960 

3,610 

3,340 

2,760 

2,870

2,830 

2,800 

3,260 

3,550 

3,840

3,540 

3,780 

3,960 

4,020 

3,480

3,000 

2,760 

2,900 

2,970 

2,820

?,640 

2,340 

2,090 

1,910 

1,760

1,590 

1,470 

1,410 

1,410 

1,250

July

1,100 

980 

88b 

805 

760

860 

1,300 

890 

715 

622

542 

430 

360 

311 

241

196 

173 

150 

134 

109

01 

78 

68 

68

62 

60 

58 

49 

48 

46

Aug.

41 

39 

39 

39 

39

37 

37 

40 

40 

33

36 

26 

20 

14 

9.2

6.2

J.t

9.0 

9.0

8.0 

9.0 

9.0 

11 

8.0

9.0 

9.0 

9.0 

8.0 

8.0 

9.0

Minimum Mean

0 21.7 

33 101 

88 115

0 379

8g 114 

90 118 

150 248 

250 1,335 

2,080 3,597 

1,350 2,797 

46 396 

6.2 20.1 

2.0 9.35

0 741

Sept.

8.0 

7.4 

7.4 

7.4 

6.2

5.6 

15 

21 

16 

13

16 

18 

17 

14 

13

12 

8.0 

6.8 

4.4

3.Z

3.8 

3.2 

2.0 

2.0 

2.0

2.0 

2.O 

2.0 

26 

16

Runoff in 

acre-feet

1,330 

6,000 

7.04O

275,400

6,990 

6,540 

15,250 

79,450 

221,200 

166,500 

24,320 

1,240 

556

536, 40a

) 3,800 sec. -ft,; Hay 5 (2 p.m.) 4,620 

4,260 see. -ft.; June 13 (7:45 p.m.)

Winter discharge .measurement nade on this day. 

KOte.'- Stage-discharge relation affected by Ice Nov. ZZ to Dec. 23. Ne gage-height record Dee. 24 

to Apr. 4 (stage-discharge relation affected by ice during aoat of period), Aug. 9-15; discharge 

computed oh basis of weather records and records for station at Dixon, Wyo*.
222 GREEN RIVER BASIN

Battle Creek near Slater, Colo.

Location.- Water-stage recorder, lat. 41°QO' , long. 107°15', in NW£ sec. 14, T. 12 N., R. 

88 W. (Colorado), Wyoming-Colorado State line, a quarter of a mile upstream from mouth 

and 7 miles east of Slater. Datum of gage is 6,696.10 feet above mean sea level, adjustment of 1912.

Drainage area.- 85.3 square miles.

Records available.- October 1942 to September 1949.

Extremes.- Maximum discharge during year, 1,130 second-feet June 12 (gage height, 3.40 

reet), from rating curve extended above 350 second-feet; minimum daily, 5.8 second-feet 

Feb. 22, Sept. 21-29. ,

1942-49: Maximum discharge, 1,160 second-feet May 21, 1948, from rating carve extended above 310 second-feet; maximum gage height, 5.64 feet June 1, 1943; minimum 

daily discharge, 2.8 second-feet Sept. 14-17, 1948.

Rfemarks.- Records fair. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39.4 

a9.4 

a8.2 

a7.0 

12

12 

8.8 

8.6 

9.4 

9.4

8.8 

*8.6 

S.3 

8.3 

9.4

16 

13 

9.4 

11 

10

11 

9.7 

9.7 

9.4 

9.1

9.1 

8.8 

9.1 

9.4 

9.1 

9.4

Nov.

9.1 

11 

12 

13 

12

10 

11 

8.0 

 8.8 

8.8

9.4 

9.0 

9.2 

9.6 

9.8

9.8 

9.2 

9.G 

8.6 

8.6

11 

11 

11 

12 

12

11 

9.8 

9.0 

9.4 

9.0

Dec.

10 

10 

12 

10 

9.4

11 

*10 

11 

9.6 

11

11 

11 

12 

12 

12

10 

11

11 

10 

11

11 

11 

11 

10 

S.4

9.0 

10 

10 

11 

11 

9.6

Jan.

11 

11

10 

10

11 

11 

*12 

11 

11

11 

10 

11 

11 

11

10 

8.8 

9.0 

9.2 

9.2

9.0 

8.6 

S.2 

8.2 

8.2

8.0 

.8 

.8 

.6 

.2 

.2

Feb.

7.2 

7.2 

7.0 

7.0 

6.8

6.6 

6.4 

6.6 

6.6 

6.6

6.6 

6.4 

6.0 

6.0 

6.2

6.4 

6.4 

6.4 

6.2 

6.0

6.0 

5.8 

*6.0 

6.0 

6.0

6.0 

6.0

6.2

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

Lendar year 1948

1.......................................

ter year 1948-49 .......................

Mar.

6.6 

6.6 

7.0 

7.2 

7.4

7.6 

8.0 

7.4 

8.0 

8.4

9.0 

9.2 

8.0 

9.6 

12

13 

13 

14 

16 

*18

20 

18 

18 

18 

17

17 

16 

17 

17 

16 

16

Apr.

16 

17 

18 

20

26

35 

49 

69 

66 

52

54 

70 

85 

66 

*55

58 

85 

122 

133 

136

117 

126 

169 

268 

364

400 

396 

450 

454 

389

Secondfoot-days

300.8 

301.1 

327.0

28,576.9

297.0 

178.6 

386.0 

4,365 

14,782

2i325 

252.3 

185.4

39,934.2

May

260 

255 

426 

490 

438

316 

260 

268 

281 

368

434 

482 

522 

558 

630

576 

610 

585 

508 

464

426 

406 

389 

396 

438

526 

670 

695 

715 

725 

665

Maximum

16 

13 

12

952

12 

7.2 

20 

454 

725 

930 

186 

14 

6.17

930

June

590 

446 

368 

386 

454

549 

558 

650 

645 

715

790 

930 

840 

765 

685

700 

755 

740 

680 

625

544 

480 

424 

354 

309

290 

288 

252 

220 

202

July

186 

170 

160 

166 

162

140 

124 

109 

101 

94

88 

80 

73 

66 

63

56 

51 

46 

47 

43

36 

35 

35 

35 

33

26 

24 

23 

19 

18 

16

Minimum

7.0 

8.0 

8.4

2.8

7.2 

5.8 

6.6 

16 

255 

202 

16 

6.4 

5.8

5.8

Aug.

14 

13 

13 

12 

11

9.9 

8.6 

8.1 

10 

9.1

.8 

.0 

.4 

.0 

.0

.O 

.7 

.0 

.0 

.0

.0 

.0 

.7 

.0 

.7

.7 

.7 

.4 

.4 

.4 

.7

Mean

9.70 

10.0 

10.5

78.1

9.58 

6.38 

12.5 

146 

477 

541 

75.0 

8.14 

6.18

109

Sept.

6. 

6. 

6. 

6. 

6.

6. 

a6. 

a6. 

a6. 

a6.

a6. 

a6. 

a6. 

a6.4 

a6.4

a6.4 

a6.4 

a6.2 

a6.0 

a6.0

a5. 8 

5.8

5~.S 

5.8

5.8 

5.8 

5.8 

5.8 

6.1

Runoff In 

acre-feet

597 

597 

649

56^670

589 

354 

766 

8,660 

29,320 

32,200 

4,610 

500 

368

79,210

Peak discharge (base. 750 sec.-ft.).- May 17 (9 p:m.) 785 sec.-ft.; May 29 (ll:'|SO p.m.) 805 sec.- 

ftT; June 12 "Q. a.m.; 1,130 sec.-ft.

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of weather records and records for stations 

on nearby Streams.

Hote.- Sfcage-dlscharge relation affected by Ice Hov. 6 to Mar. 20 (no gage-height record Feb. 5-10).
GREEN RIVER BASIN 223

Slater Fork near Slater, Colo.

Location.- Water-stage recorder, lat. 40°59', long. 107°23', in SW£ sec. 21, T. 12 N., R. £ 

W., about 1 mile upstream from mouth and l| miles south of Slater.

Drainage area.- 161 square miles.

Records available.- May 1910 to May 1912 and October 1933 to September 1949 in reports of 

Geological Purvey. May 1910 to May 1912 and June 1931 to September 1949 in reports of 

State engineer.

Average discharge.- 18 years (1931-49), 72.7 second-feet.

Extremes.- Maximum discharge recorded during year, 1,190 second-feet May 18 (gage height, 

B.47 feet), from rating curve extended above 800 second-feet; minimum daily, 5.4 secondfeet Aug. 15.

1910-12, 1931-49: Maximum daily discharge, 1,700 second-feet May 19, 1912; no flow 

Aug. 2-10, 1934, Aug. 18, 25-27, 1936.

Remarks.- Records good above 100 second-feet and fair below. Diversions above station for 

irrigation.

Revisions.- W 764: Drainage area.

Discharge, In second- feet, water year Oc

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

13 

11 

9.9 

18

26 

18 

15 

16 

15

15 

14 

20 

22 

25

31 

26 

22 

18 

15

15 

16 

15 

15 

15

15 

15 

17 

19 

20 

21

Nov.

22 

23 

25 

30 

25

21 

22 

18 

*16 

17

16 

16 

15 

13 

17

17 

19 

14 

14 

18

18 

16 

18 

18 

18

18 

17 

15 

16 

18

Dec.

16 

15 

15 

15 

15

16 

b!6 

b!6 

b!6 

b!8

19 

20 

19 

18 

18

17 

18 

19 

18 

19

19 

19 

18 

b!7 

b!8

b!9 

20 

20 

19 

18 

19

Jan.

20 

19 

18 

16 

15

16 

16 

*16 

18 

18

18 

17 

18 

19 

18

16 

16 

17 

18 

18

18 

16 

19 

19 

18

17 

19 

19 

18 

17 

18

Feb.

18 

19

19 

19 

18

17 

17 

18 

19 

19

18 

18 

17 

17 

16

17 

17 

18 

17 

17

16 

16

17 

19

 21 

19 

19

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year l944|rA9 .......................

Mar.

b20 

b20 

b20 

b20 

b20

b21 

b22 

b22 

b23 

24

25

23 

19 

25 

27

26 

26 

24 

28 

 30

30 

28 

27 

26 

24

23 

24 

25 

23 

23 

20

tober 1948 to September 1949

Apr.

Secondfoot-days

550.9 

550 

549

23,806.2

548 

497 

738 

4,541 

16,734 

11,646 

1,551 

245.2 

305.0

38,*55.1

Peak discharge, (base, 430 sen. -ft.).- Apr. 29 (11 p.m.

24 

23 

23 

22 

26

32 

43 

56 

58 

50

50 

68 

85 

67 

51

62 

82 

106 

126 

133

122 

140 

199 

311 

374

392 

386 

440 

507 

483

May

284 

297 

526

676 

630

379 

302 

334 

370 

480

554 

690 

660 

610 

674

604 

666 

893 

584 

510

460 

556 

447 

454 

474

519 

568 

608 

749 

642 

534

Maximum

31 

30 

20

630

20 

21 

30 

507 

893 

610 

164 

11 

21

893

June

508 

405 

325 

346 

427

429 

418 

523 

501 5-66

546 

610 

542 

489 

435

447 

494 

498 

444 

414

346 

312 

288 

2*9 

210

202 

217 

175 

150 

130

July

111 

101 

98 

123 

164

106 

91 

76 

66 

60

62 

51 

47 

42

37

35

30 

27 

26 

22

21 

20 

19 

17 

20

18 

15 

13 

12 

11 

10

Aug.

10 

9 

9 

9 

8

7 

6 

6 

7 

8

8

7 

6 

6 

5

6 

6 

6 

8 

8

8 

8 

8 

10 

11

8

6 

7 

7 

7 

7

Minimum Mean

9.9 17.8 

13 18.3 

15 17.7

1.4 65.0

15 17 . 7 

15 17.8 

19 23.8 

22 151 

284 540 

130 388 

10 50.0 

5.4 7.91 

7.0 10.2

5.4 105

) 644 sec. -ft.; Hay 4 (4t30 p.m.)

.7 

.9 

.7 

.8

.4

.0 

.7 

.6 

.2

.4 

.0 

.7 

.2 

.4

.4

.2 

.9 

.6 

.4

.4 

.2 

.2

.6 

.4 

.4

.6

.6 

.6

Sept.

7.4 

8.0 

7.8 

9.2

10

9.2 

7.6 

7.0 

8.2 

8.8

19 

21 

14 

14 

13

9.4 

8.4 

8.4 

8.2 

8.0

7.8 

9.7 

10 

10 

10

10 

10 

11 

9.9 

12

Runoff In 

acre-feet

1,090 

1,090 

1,090

47,220

1,090 

986 

1,460 

9,010 

33,190 

23,100 

5,080 

486 

605

76,280

856 secL. -

e.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge Stage-discharge relation relation affected affected by Ice.

Hote.- Ho gage-height record Oct. lo to Nov. 8, Dec. 6, 11, 12, Dec. 27 to Feb. 28 (stage-discharge 

relation affected by Ice duping part of periods): discharge computed on basis of 5 discharge measurements, weather records, and records for nearby stations-.
224 GREEN RIVER BASIN

Savtery Creak near Savery, iWyo.

Location.- Water-stage recorder, lat. 41°06',00", long. 107°22'50", in SW$ sec. 14, T. 13 

N., R. 89 W., l£ miles dovmstream from Loco Creek and 6j miles northeast of Savery.

Drainage area.- 330 square miles.

Records available.- October 1941 to September 1946, October 1947 to September 1949.

Extremes.- Maximum discharge during year, 1,630 second-feet May 17 (gage height, 6.07 feet), 

from rating curve extended above 730 second-feet; minimum daily, 6.6 second-feet Sept. 

10.

1941-46; 1947-49: Maximum discharge, that of May 17, 1949; minimum daily, 1.2 secondfeft Sept. 9, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

whicn are fair. Many diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

13 

13 

11 

9.4 

16

23 

21 

17 

16 

16

15 

»15 

14 

13 

15

29 

30 

21 

17 

16

15 

16 

15 

15 

16

1& 

15 

15 

19 

21 

21

Nov.

22 

22 

28 

37 

29

23 

27 

18 

»26 

25

27 

25 

24 

24 

25

26 

27 

25 

22 

21

27 

26 

29 

28 

26

28 

26 

24 

25 

26

Dec.

27 

26 

27 

27 

25

26 

25 

»26 

24 

25

28 

29 

29 

29 

28

27 

29 

28 

28 

30

29 

29 

26 

27 

25

26 

29 

31 

29 

28 

27

Jan.

30 

28 

26 

25 

26

26 

27 

*28 

29 

30

28 

27 

29 

29 

29

27 

24 

25 

25 

27

27 

28 

29 

28 

29

27 

28 

29 

29 

28 

28

Feb.

28 

29 

30 

30 

29

28 

28 

29 

30 

31

31 

30 

30 

28 

29

30 

31 

31 

31 

31

30 

30 

»31 

31 

31

31 

31 

31

Month

Ooto 

Hove 

Dece

Ca

Janui 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lender year

ter year 1948-49 .......................

Peak discharge (base, 300 sec. -ft.).- ACT.

re.j May '17 (1O:30 p.m.) 1,630 sec. -ft. j Jun

Mar.

31 

30 

31 

31 

32

32 

32 

32 

32 

32

32

32 

32 

34 

38

39 

41 

42 

51 

»54

58 

62 

61 

56 

51

45 

46 

42 

42

41 

39

Apr.

46 

51 

48 

50 

60

85 

122 

170 

167 

161

161

lee

220 

200 

179

192 

241 

267 

279 

311

275 

267 

394 

524 

730

801 

834 

854 

1,000 

661

Secondfoot-days

523.4 

770 

651

27,354.6

855 

840 

1,253 

9,758 

24,177 

11,696 

1,605 

' 344.7 

305.6

52,920.9

May

578 

820 

847 

1,070 

980

704 

602 

662 

730 

814

861 

903 

862 

854 

675

847 

1,030 

1,210 

861 

756

742 

723 

660 

656 

606

620 

650 

674 

660 

656 

602

Maximum

30 

37 

31

730

30 

31 

62 

1,000 

1,210 

590 

108 

17 

14

1,210

June

590 

548 

450 

412 

150

«70 

519 

566 

566 

514

514

560 

560 

480 

(25

407 

412 

416 

789 

344

5O7 

271 

236 

216 

196

176 

TS6 

173 

148 

125

July

108 

99 

97 

97 

103

101 

90 

77 

67 

64

62 

55 

49 

46 

41

36 

37 

35 

35 

31

30 

27 

25 

25 

30

31 

25 

22 

21 

19 

16

Minimum

9.4 

16 

24

TT.2

24 

26

30 

46 

578 

125 

18 

6.9 

6.6

6.6

Aug.

17 

16 

16 

16 

16

15 

13 

12 

14 

14

14 

13 

12 

11 

11

10 

10 

8.7 

6.4 

6.1

7.2 

6.9 

6.9 

7.6 

6.4

8.7 

8.7 

6.1 

8.1 

8.7 

10

Mean

16.9 

25.7 

27.5

74.7

27.6 

30.0 

40.4 

325 

780 

368 > 

51.8 

11.1 

10.2

145

Sept.

10 

9.0 

6.7 

10 

12

12 

10 

6.7 

7.5 

6.6

7.2 

8.1 

10 

12 

12

12 

12 

11 

10 

10

10 

11 

10 

10 

10

10 

10 

10 

12 

14

Runoff In 

acre-feet

1,040 

1,530 

1,690

54,270

1,700 

1,670 

2,490 

19,350 

47,950 

23,080 

3,180 

684 

607

105,000

29 (2 a.m.) 1,130 sec. -ft.; May 3 (2 a.m.) 1,220 sec.- 

e 12 (11 P.O.) 602 sec. -ft.

* winter dlacharge measurement made on this day.'

»ote.- Stage-uiaohMSse relation affected by Ice Nov. 5 to Jan. 2, Jan. 6-10, Feb. 23 to Mar. 14. 

Ho gage-height racord Jan. 3-7, Jan. 11 to Feb. 22 (stage-dischw.^ Miatlon affected by Ice), Apr. 

3-6, 13, 14; discharge computed on basis of weather records and records for' stations on nearby 

streams.
GREEN RIVER BASIN 225

Brush Creek above cave, near Vernal, Utah

Location.- Water-stage recorder, lat. 40°42', long. 109°36', in sec. 29, T. IS., R. 21 

is., at road bridge a quarter of a mile downstream from Government Creek, 1 mile upstream from cave, and 17? miles northwest of Vernal.

Records available.- April 1946 to September 1949.

Extremes.- Maximum discharge during year, 186 second-feet May 15 (gage height, 3.93

 feet); minimum recorded, 0.2 second-foot Oct. 18, but may have been less during period of no gage-height record.

1946-49: Maximum discharge, 234 second-feet May 8, 1947 (gage height. 4.22 feet); 

minimum recorded, 0.1 second-foot Sept. 29, 30, 1947.

Remarks.- Records good except those for periods of ice effect or no gage-height record,

 which are poor. Oaks Park Canal diverts above station from Brush Creek to Ashley Creek 

Basin above station. Flow regulated by Oaks Park Reservoir (capacity, 6,250 acrefeet). For records of diversion see records for Oaks Park Canal on page 228.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.3 

2.3 

2.3 

2.6 

3. '6

2.8 

2.3 

2.2 

2.1 

1.9

1.9 

1.9 

2.0 

.7 

1.6

.6 

.3 

.3 

.3 

.4

.8 

.8 

.7 

.7 

.7

.7 

.7 

1.0 

1.4 

1.1 

1.1

Nov.

1.6 

1.2 

1.1 

.9 

.5

.6 

.8 

.9 

b.9 

b.9

b.9 

.9 

.9 

.9 

.9

.8 

.9 

1.0 

b.9 

b.8

b.8 

b.8 

b.8 

b.8 

.8

.8 

.8 

.7 

.7 

.7

Dec.

o.e

b.6 

b.S

.5

Jan.

. 0.4

Feb.

> 0.3

Month

Goto 

Nove 

Dece

Ca

janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

her. ....................................

lendar year 1948 

ary

h. ......................................

ter year 1948-49 .......................

Mar.

, 0.3

> .4

Apr.

. 0.5

.6 

.6

.6 

.7 

.8 

.9 

1.0

1.0 

1.0 

1.1 

1.5 

2.3

3.0 

4.0 

7.0 

15 

20

Secondfoot-days

44.1 

26.0 

15.7

2,933,3

12.4 

8.4 

10.9 

67.6 

1,818 

2,010 

303.0 

138.9 

57.4

4,50«.4

May

16 

15 

30 

43 

40

32

28 

28 

37

57

69 

99 

104 

111 

128

9» 

84 

91 

74 

59

52 

51 

46 

50 

59

59 

60 

60 

56 

48 

42

Maximum

3.6 

1.6

117

20 

128 

136 

15 

7.1 

2.4

136

June

39 

32 

40 

104 

109

102 

97 

124 

134 

126

128 

13B 

119 

101 

90

78 

69 

70 

60 

42

33 

21 

20 

21 

27

27 

21 

11 

13 

16

July

14 

13 

14 

14 

12

11 

11 

10 

9 

11

10 

15 

13 

10 

7.3

7.4 

7.8 

9.2 

8.4 

8.2

8.4 

8.2 

8.0 

8.0 

9.0

8.0 

8.0 

7.8 

7.6 

7.4 

7.3

Minimum

0.3

.5

-

15 

11 

7.3 

2.4 

1.7

-

Aug.

7.1 

6.9 

6.9 

6.4 

6.4

6.4 

6.4 

7.1 

6.4 

6.9

5.5 

5.3 

5.1 

4.3 

4.3

4.1 

3.6 

3.5 

3.3 

3.1

2.9 

2.8 

3.1 

3.1 

2.8

2.7 

2.7 

2.6 

2.4 

2.4 

2.4

Mean

1.42 

.87 

.51

8.01

.4

.3 

.35 

2.25 

58.6 

67.0 

9.77 

4.48 

1.91

12.4

Sept.

2.3 

2.2 

2.2 

2.1 

2.0

1.8 

1.8 

1.7 

1.7 

1.9

2.2 

2.0 

2.0 

1.9 

1.9

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.7 

1.7 

1.9

1.7 

1.7 

1.8 

2.4 

2.2

Runoff In 

acre-feet

87 

52 

31

5,820

25 

17 

22 

134 

3,610 

3,990 

601 

276 

114

8,960

b Stage-discharge relation affected by Ice. 

Note.- No gage-height record Dec. 4 to May 4; discharge conqputed on basis of weather records and 

records for nearby stations.
226 GREEN RIVER BASIN

Brush Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40°35', long. 109°26', in NW^-NE^ sec. 10, T. 3 S. 

FT 21T~E., 2 miles upstream from Little Brush Creek and 10 miles northeast of Vernal.

Drainage area.- 82 square miles.

Records available.- March 1939 to September 1949.

Average discharge.- 10 years, 39.3 second-feet.

Extremes. - Maximum discharge during year, 377 second-feet .Tune 8 (gage height, 4.32 feet); 

minimam not determined, occurred during period of ice effect.

1939-49: Maximum discharge, 433 second-feet June 23, 1947 (gage height, 5.08 feet), 

resulting when dam in fish pond upstream was blasted out, from rating curve extended 

above 250 second-feet; minimum recorded, 7 second-feet Jan. 2, 1940, but may have been 

less during periods of ice effect.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Two small diversions above station for irrigation. Water from Oaks 

Park Reservoir on headwaters (capacity, 6,250 acre-feet) is diverted above station to 

Ashley Creek Basin for irrigation. See records for Oaks Park Canal page 228.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

17 

17 

17 

28

19 

18 

18 

17 

17

16 

16 

15 

17 

18

17 

17 

17 

17 

17

16 

16 

16 

16 

16

16 

16 

15 

15 

15 

14

Nov.

14 

14 

13 

13 

13

13 

13 

14 

14 

14

14 

14 

14 

14 

14

*14 

14 

14 

17 

14

14 

14 

14 

14 

14

14

} "

13

Dec.

> 13 

(*)

13 

13 

13 

13 

13

13 

13 

13 

13 

*13

13 

13 

13

13

Jan.

13 

(*)

Feb.

(») 

> 13

12 

(*)

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

12 

(*)

1-

14

14 

14 

15 

15 

*13 

13

Apr.

13 

13 

14 

14

15

15 

16 

15 

17 

16

16 

17 

18 

18 

18

20 

21 

22 

25

28

29 

30 

31 

39 

SO

65 

73 

85 

127 

140

Secondfoot-days

524 

414 

403

12,463

403 

356 

404 

1,020 

6,130 

4,735 

1,177 

988 

590

'17,144

May

116 

107 

158 

192 

196

169 

134 

117 

116 

144

166 

203 

236 

243 

248

250 

250 

249 

242 

232

226 

220 

216 

207 

204

213 

216 

218 

218 

215 

209

Maximum

28 

17

225

140 

250 

231 

50 

39 

32

250

June

203 

196 

184 

189 

207

212 

215 

228 

220 

222

226 

231 

228 

222 

208

195 

175 

159 

150 

133

107 

90 

77 

72 

73

73 

76 

61 

52 

51

July

Minimum

14

12

13 

107 

51 

31 

22 

17

-

50 

47 

47 

47 

46

43 

41 

41 

39 

39

43 

40 

46 

40 

36

34 

36 

36 

36 

34

33 

33 

33 

33 

33

33 

32 

32 

32 

31 

31

Aug.

31 

31 

29 

32 

34

36 

38 

39 

39 

38

37 

37 

37 

36 

36

35 

35 

36 

35

34

34 

32 

30 

28 

25

23 

22 

23 

22 

22 

22

Mean

16.9 

13.8 

13.0

34.1

13 

12.7 

13.0 

34.0 

198 

158 

38.0 

31.9 

19.7

47.0

Sept.

22 

22 

22 

21 

20

20 

20 

20 

20

32

22 

20 

20 

20 

20

19 

18 

18 

18 

18

17 

17 

17 

17 

17

17 

18 

20 

21 

17

Runoff In 

acre-feet

1,040 

821 

799

24,720

799 

706 

801 

2,020 

12,160 

9,390 

2,330 

1,960 

1,170

34,000

* Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by Ice Nov. 27-29, Dec. 1-10, 16, Dec. 24 to Mar. 25 (no 

gage-height record JfoVi 4 and during much of Ice-affected perlodsj discharge computed on [basis of 3 

discharge measurements, weather records, and records for station near Jensen).
GREEN RIVER BASIN 227

Brush Creek near Jensen, Utah

Location - Water-stage recorder, lat. 40°24', long. 109°21', in Sw£ sec. 4, T. 5 S., R. 23 

E., about 2,000 feet above mouth and 2| miles north of Jensen.

Records available.- April 1939 to September 1949. 

Average discharge.- 10 years, 24.0 second-feet.

Extremes .- Maximum discharge d,uring year, 212 second-feet May 18 (gage height, 2.96 feet); 

no now Aug. 11.

1939-49: Maximum discharge observed, 900 second-feet Aug. 17, 1941 (gage height, 5.50 

feet, site and datum then in use), from rating curve extended above 250 second-feet; no 

flow on many days in some years.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Many diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.1 

.1 

.1 

aB.O

a3.0 

al.O 

a. 9 

a. 8 

a. 7

a. 6 

a. 7 

1.0 

1.4 

1.7

.6 

1.2 

3.3 

6.2 

10

9.6 

8.2 

7.0 

7.0 

7.0

5.9 

5.2 

5.6 

5.9 

5.6 

5.6

Nov.

4.9 

4.2 

2.5 

2.3 

2.1

2.3

2.6 

3.0

3.5 

4.5

1.8 

2.1 

1.3 

2.1

1.7

1.2

1.0 

1.3 

1.6 

4.0

(*)

' 10

Dec.

(*)

11 

(»)

Jan.

(«) 

> 13

(«)

15

Feb.

15 

(*)

(*)

> 18

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1943

ter vear i aiR-49 ...............

Mar.

> 20

(*)

21 

23 

25 

26 

26

27 

 29 

31 

31 

28

24 

22 

25 

22 

20 

19

Apr.

18 

17 

18 

18 

21

19 

20 

22 

24 

21

18 

17 

16 

12 

8.6

10 

11 

10 

7.0 

8.6

7.8 

5.6 

4.9 

6.2 

20

33 

49 

60 

a70 

a85

Secondroot-days

114.1 

151 

341

5,805.1

435 

459 

699 

657.7 

3,646 

2,927.1 

28.7 

9.3 

44.5

May

a75 

a70 

102 

128 

138

114 

97 

78 

64 

62

77 

95 

122 

124 

132

138 

149 

165 

151 

143

141 

138 

138 

132 

128

124 

124 

126 

126 

124 

120

Maximum

10

-

31 

85 

165 

165 

12 

1.4 

16

1R=1

June

116 

116 

108 

106 

116

124

141 

143 

165 

165

163 

158 

154 

145 

138

126 

116 

108 

101 

95

B7 

72 

56 

37 

a20

a!5 

alO 

a8. 2 

a5.9 

a2.0

July

0.9 

.9 

13 

a3.0 

al.5

a. 8 

a. 3 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

.2

.2 

.2 

.2 

.2

.1

.1 

.1 

1.0 

.6 

.4

.4 

1.0 

.9 

.6 

.4 

.3

Minimum

0.1

1.0

-

6.2

.1 

0 

.1

n

Aug.

0.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.1

0 

.5 

1.4 

al.O 

a. 5

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.4 

.8

.5 

.4 

.3 

.3 

.2 

.2

Mean

2.68 

5.03 

11

15.9

14 

16.4 

22.5 

21.9 

118 

97.6 

.93 

.30 

1.48

Sept.

0.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.3

16 

a. 6 

.1 

.1 

.1

.1

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.3 

14 

alO

Runoff In 

acre-feet

226 

300 

676

11,520

863 

910 

1,390 

1,300 

7,230 

5,810 

57 

18 

88

1B.B7fl

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for other 

-stations on Brush Creek.

Note.- Stage-discharge relation affected by ice Nov. 8-10, NOV. 21 to Mar. 21 (no gage-height record Nov. 27 to Dec. 3, Dec. 5-9, Jan. 18 to Feb. 9); discharge computed on basis of 9 discharge 

measurements, weather records, and records for other stations on Brush Creek.
228 GREEN RIVER BASIN

Oaks Park Canal near Vernal, Utah

Location.- Water-stage recorder, lat. 40°44<, long. 109°38', in SE£ sec. 12, T. 1 S., R. 

20 E., 1,000 feet downstream from Oaks Park Dam and 200 feet downstream from point 

of diversion from Brush Creek.

Records available.- April 1946 to September 194*9.

Extremes.- Maximum discharge during year, 48 second-feet July 28 (gage height, 5.65 feet); 

no now Oct. 13 to June 19.

1946-49: Maximum discharge, 49 second-feet July 25, 1948 (gage height, 5.70 feet); 

no flow at times.

Remarks.- Records good except those for period of no gage-height "record, which are fair. 

canal diverts water from Brush Creek, which has been stored in Oaks Park Reservoir, 

for irrigation in Ashley Creek Basin.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

1 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

11 

11 

11 

11 

10

6.1 

4.6 

4.2 

3.8 

3.3

2.5

.8 

O 

0 

0

o

0. 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu, 

Febn 

Marc 

ftprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

h.......................................

ter year 1948-49 .......................

Mar. Apr.

Secondfoot-days

79.3 

0 

0

2,337.9

0 

0 

0 

0 

0 

88.6 

653 

1,281 

527

2,628.9

May

Maximum

11 

0 

0

47

0 

0 

0 

0 

0 

18 

47 

47 

22

47

June

0 

0 

0

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

a9.0

a8.0 

a 18 

18 

9.8 

1.0

1.0 

7.2 

12 

4.0

.6

July

0.5 

.4 

.5 

.4

.2 

.2 

.2 

0 

0

0 

0 

.1 

.2 

19

25 

27 

37 

38 

38

38 

38 

38 

38 

42

42 

43 

46 

47 

47 

47

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

20 

15

0

Aug.

47 

47 

47 

47 

47

47 

47 

47 

47 

47

46 

46 

46 

41 

40

39 

38 

36 

36 

40

44 

44 

42 

41

41

40 

40 

35 

31 

25 

20

Mean

2.56 

0 

0

7.75

0 

0 

0 

0 

0 

2.95 

21.1 

41.3 

17.6

7.20

Sept.

18 

15 

15 

15 

15

15 

15 

15 

15 

15

16 

18 

18 

18 

18

20 

21 

22 

22 

21

22 

20 

19 

17 

17

17 

17 

17 

17 

17

Runoff In 

acre-feet

157 

0 

0

5,630

0 

0 

0 

0 

0 

176 

1,300 

2,540 

1,040

5,210

a Ho gage-height record; discharge computed on basis of engineer's notes and records for Brush 

Creek above cave, near Vernal which indicate time of changes in flow.
GREEN RIVER BASIN 229

Little Brush Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40°43', long. 109°30', In SE£ sec. 24, T. IS., R. 

21 E., half a mile upstream from cave, three-quarters of a mile upstream from Kane 

Hollow, and 17f miles north of Vernal.

Drainage area.- 28 square miles.

Records available.- October 1945 to September 1949.

Extremes.- Maximum discharge during year, 365 second-feet May 15 {gage height, 3.08 feet); 

minimum not determined, occurred during period of no gage-height record.

1945-49: Maximum discharge, 388 second-feet May 21, 1948 (gage height, 2.98 feet); 

minimum not determined, occurred during period of ice effect.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Flow regulated by East Park Reservoir. No diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.8 

2.8 

2.8 

2.5 21 .?

2.1 

1.8 

2.0 

2.0 

2.0

2.0 

2.0

2.0 

2.1 

2.8

2.5 

2.2 

2.1 

2.1 

2.1

2.0 

1.8 

1.4 

1.2 

1.0

.9 

.6 

.6 

.6 

.5 

.6

Nov.

0.8

.7 

.6 

.8

.6

.6 

 .6

Dac.

> 0.5

Jan.

0.5

Feb.

> 0.5 

.4

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

my.

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 ...............

Mar.

0.4

, .5

Apr.

0.5 

.5 

.6 

.6 

.7

.7 

.8 

.8 

.8 

.9

.9

1.0 

1.0 

1.1 

1.3

1.5 

2.0 

2.5 

3.5 

4.5

4.8 

5.0 

5.2 

8.0 

15

25 

 33 

40 

50

65

Second - 

foot -days

56.6 

18.5 

15.5

5,431.7

15.5 

13.2 

14.0 

277.2 

4,366 

1,998 

340.9 

420.9 

35.8

7,572.1

May

57 

64 

101 

117 

94

68 

53 

50 

59 

86

111 

185 

194 

216 

330

251 

202 

185 

168 

, 161

131 

117 

104 

107 

131

158 

168 

180 

194 

176 

148

Maximum

2.8

301

65 

330 

131 

16 

26 ' 

1.5

330

June

131 

106 

95 

109 

101

94 

97 

119

112 

101

100 

100 

90 

72 

64

58 

51 

50 

47 

42

36 

33 

30 

27 

25

24 

23 

23 

20 

18

July

16 

15 

16 

15 

14

14 

13 

13 

12 

14

13 

12 

12 

11 

10

12 

12 

11 

11 

9.5

8.8 

8.5 

8.2 

8.2 

8.2

8.2

7.6 

7.3 

6.8 

6.8 

6.8

Minimum

0.5

-

.5 

50 

18 

6.8 

1.5 

1.1

-

Aug.

6.6 

6.3 

15 

25 

25

26 

24 

24 

23 

22

22 

21 

20 

19 

18

17 

18 

18 

16 

15

13 

9.5 

2.8 

2.5 -2.1

2.0 

1.7 

1.7 

1.7 

1.5 

1.5

Mean

1.83

.62 

.5

14.8

.5 

.47 

.45 

9.24 

141 

66.6 

11.0 

13.6 

1.19

20.7

Sept.

1.5 

1.3 

1.4 

1.2 

1.2

1.2 

1.1 

1.1

1.2 

1.4

1.5 

1.2 

1.2 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.2 

1.4 

1.3

Runoff In 

acre-feet

112 

37 

31

10,780

31 

26 

28 

550 

8,660 

3,960 

676 

835 

71

15,020

* Winter discharge measurement mede on this day.

Note.- Stage-discharge relation affected by Ice Nov. 7 to Apr. 30 '(no gage-height record Nov. 19 

to Apr. 26 ; discharge computed on basis of 1 discharge measurement, weather records, and records for 

nearby streams).
230 GREEN RIVER BASIN

Ashley Creek below Trout Creek, near Vernal, Utah

Drainage area.- 27 square miles.

Records available.- October 1943 tc September 1949.

Extremes.- Maximum discharge during year, 478 second-feet June 8 (gage height, 3.48 feet); 

minimum not determined, occurred during period of no gage-height record.

1943-49: Maximum discharge, 630 second-feet May 19, 1948; minimum not determined, 

occurred during period of no gage-height record.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

which are poor. Flow slightly regulated at headwaters by Lcng Park Reservoir (capacity, 500 acre-feet). No diversions above station-.

Revisions (water years).- W 1059: 1945.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.2 

2.2 

2.2 

2.4 

3.0

2.3 

2.1 

2.3 

2.0 

2.0

3.6 

3.0 

2.4 

2.5 

3.2

2.6 

2.2 

2.6 

2.7 

2.5

2.4 

2.5 

2.6 

2.4 

2.4

2.5 

2.4 

2.4

t b2.4

Nov.

\ b2.2

,

. 2.2

Dec.

, 2.0 

 1.5

Jan.

' 1.5

' 1.0

Feb.

 1.0

Month

Ooto 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 ...............

Mar.

' 1.0 

> 1.5

Apr.

1.7 

1.8 

1.8 

1.9 

2.0

2.5 

3.0 

3.5 

3.6 

4.0

5.0 

6.0 

10 

11 

10

13 

16 

20 

22 

23

25 

30 

35 

40 

45

45 

44 

45 

46 

48

Secondfoot-days

76.8 

66.0 

59.0

7,922.5

38.5 

28.0 

41.5 

564.8 

4,356 

4,686 

805 

309.2 

122.8

11,153.6

May

48 

48 

49 

50 

53

51 

50 

50 

90 

110

130 

160 

170 

185 

195

155 

120 

115 

110 

108

100 

103 

150 

210 

240

258 

233 

250 

293 

250 

222

Maximum

3.6

393

48 

293 

317 

36 

21 

5.6

317

June

184 

151 

128 

140 

126

130 

140 

247 

293 

271

293 

317 

254 

218 

197

190 

184 

232 

200 

148

110 

88 

76 

66 

60

58 

55 

49 

42 

39

July

36 

34 

34 

33 

31

29 

28 

26 

26 

26

26 

31 

30 

24 

23

23 

24 

21 

23 

20

20 

22 

21 

24 

26

26 

25 

24 

24 

23 

22

Minimum

2.0

-

1.7 

48 

39 

20 

5.4 

3.2

-

Aug.

19 

20 

21 

20 

20

18 

15 

16 

12 

10

8.8 

8.2 

7.6 

7.6 

7.3

7.3 

7.0 

6.8 

6.6 

6.4

6.2 

6.2 

6.6 

6.6 

5.8

5.8 

5.6 

5.4 

5.4 

5.4 

5.6

Mean

2.5 

2.2 

1.90

21.6

1.24 

1.0 

1.34 

18.8 

141 

156 

26.0 

10.0 

4.09

30.6

Sept.

5.4 

5.2 

5.6 

4.9 

4.6

4.4 

4.2 

4.1 

4.2 

5.0

5.0 

4.2 

4.1 

4.1 

4.0

3.7 

3.6 

3.6 

3.6 

3.6

3.5 

3.4 

3.4 

3.4 

3.4

3.2 

3.2 

3.6

4.4 

4.2

Runoff In 

acre-feet

152 

131 

117

15 , 710

76 

56 

82 

1,120 

8,640 

9,290 

1,600 

613 

244

22,120

rge (base, 500 sec.-ft.).- May 29 (5:30 p. m.) 466 sec.-ft.j June 8 (8 p. m.) 478 sec.- 

(2:30 p. m.) 338 sec.-ft.

Peak discharg 

ft.; June 18

b Stage-discharge relation affected by Ice.

Note.- Ho gage-height record Nov. 4 to May 25; discharge computed on basis of 1 discharge measurement, weather records, and records for nearby streams.
GREEN RIVER BASIN 231

Ashley Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40°34'50", long. 109°37'20", in SE-J- sec. 1, T. 3 

S ., R . 20 E., three-quarters of a mile upstream from head of Utah Power & Light Co.'s 

canal, 4| miles upstream from Dry Fork, and 10 miles northwest of Vernal.

Drainage area.- 101 square miles.

Records available.- June 1914 to September 1949. October 1911 to June 1914 at power plant 

ij miles downstream.

Average discharge.- 33 years (1914-16, 1918-49), 104 second-feet.

Extremes.- Maximum discharge during year, 945 second-feet May 29 (gage height, 3.14 feet); 

minimum, 14 second-feet Apr. 2.

1911-49: Maximum discharge, 2,050 second-feet May 29, 1921; minimum, that of 

Apr. 2, 1949.

Remarks.- Records good. Plow is increased by water released from Oaks Park Reservoir 

(capacity, 6,250 acre-feet) on Brush Creek and diverted to Ashley Creek Basin for 

irrigation (see p.228), City of Vernal pipe line (capacity, approximately 5 secondfeet) diverts water from tributary spring -1,000 feet above station (diversion began 

Aug. 1, 1941). At times part of this flow is returned to Ashley Creek, half a mile 

below station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

40 

40 

38 

37 

42

40 

33

32 

32 

30

29 

30 

28 

28 

28

28

27 

26 

27 

26

26 

25 

25 

25 

25

25 

25

26 

26 

26 

27

Nov.

27 

28 

27 

26 

23

23 

25 

23 

22 

24

24 

24 

24 

24 

23

23 

23 

22 

21 

21

21 

21 

20 

22 

22

22 

22 

22 

21 

20

Dec.

20 

20 

20 

20 

20

20

20 

20 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

19

18 

18 

18 

18 

18

18 

18 

18 

18 

18 

18

Jan.

18 

18

17 

17 

17

17 

17 

17 

17 

17

17 

17 

17 

17

16

16 

16 

16 

16 

16

16 

17 

17 

16 

16

16 

16

16 

16 

16 

16

Feb.

16 

16 

a 16 

a IK 

a 16

a 16 

a!6 

a!6 

a 16 

a!6

a!6 

a!6 

a!6 

a!6 

a!6

a!6 

16 

16 

16

16

16 

16 

16 

16 

16

16 

16 

16

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

-Mar.

16 

16 

16 

16 

16

15 

15

15 

16 

16

16 

16 

15 

15 

15

15 

16 

16 

16 

16

16 

16 

16 

16 

16

15 

15 

15 

15

15 

15

Apr.

15 

15

15 

15

16

ie

18 

19 

19 

19

19 

20 

20

2E 

21

22 

£4

27 

31 

32

31 

31 

37 

52

66

75 

92 

122 

171 

174

Secondfoot-days

922

690 

586

31,812

514 

448 

483

1,256 

13,713 

11,982 

4,459 

3,633 

1,860

40,546

May

166

217 

323 

369 

309

243 

224 

224 

263 

338

392 

472 

559

676 

720

540

467 

526 

463 

446

369 

346 

338 

417 

545

619

614 

640 

693 

640 

555

Maximum

42 

28 

20

970

18

16 

16 

174 

720 

693 

166 

149 

77

720

June

459 

392

342 

349 334'

331 

327 

454 

594 

569

624

693 

584 

503

463

454 

476 

599 

55O 

433

342 

312 

284 

253

227

224 

230

217 

192 

171

July

166 

160 

168 

163 

151

146 

143 

135 

132 

138

132 

149 

154

127 

127

135 

140 

140 

151 

140

135 

140 

140 

140 

149

146 

143 

143 

143 

143 

140

Minimum

25 

20 

18

18

16 

16 

15 

15 

166 

171 

127 

77 

54

15

Aug.

138 

135 

138 

138 

135

135 

138 

149 

143 

135

132 

130 

127 

117 

115

117 

115 

110 

105 

105

108

105 

105 

105 

103

101 

101 

96 

90 

85 

77

Mean

29.7 

23.0 

18.9

86.9

16.6 

16.0 

15.6 

41.9 

442 

399 

144 

117 

62.0

111

Sept.

77 

70 

70 

68 

64

62 

60 

59 

59 

60

66 

66 

64 

64 

64

62 

64 

64 

64 

62

60 

60 

59

56 

56

54 

54 

54 

59 

59

Runoff In 

acre-feet

1,830 

1,370 

1,160

63,100

1,020 

889 

958 

2,490 

27,200 

23,770 

8,840 

7,210 

3,690

80,430

Peak discharge (base, 600 aec.-ft.).- May 14 (8 p.m.) 878 sec.-ft.; May 29 (9 p.m.) 945 sec.-ft.; 

June 11 (11:30 p.m.) 875 sec.-ft.

a No gage-height record; discharge interpolated.

939921 O - 51 - 16
232 GREEN RIVER BASIN

Ashley Creek at Sign of the Maine, near Vernal, Utah

Location.- Water-stage recorder, lat. 40°31', long. 109°36', in NE£ sec. 31, T. 3 S., R. 

21 E., three-quarters of a mile downstream from Dry Fork and 4^ miles northwest of 

Vernal.

Drainage area.- 241 square miles.

Records available.- June 1939 to September 1949. March 1900 to December 1904, fragmentary 

(published as Ashley Creek near Vernal).

Average discharge.- Maximum discharge during year, 1,610 second-feet June 18 (gage height, 

b.Xb reet); minimum recorded, 14 second-feet Feb. 26.

1939-49: Maximum discharge, 2,650 second-feet July 21, 1945, from rating curve extended above 1,500 second-feet; minimum recorded, that of Feb. 26, 1949.

Remarks.-; Records good except those for periods of ice effect or no gage-height record, 

which are fair. Flow increased by water released from Oaks Park Reservoir (capacity, 

6,250 acre-feet) on Brush Creek and diverted to Ashley Creek Basin for irrigation 

(see p. 228). Diversions above station for irrigation and municipal water supply.

Discharge, in second-feet, water year'October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39

39 

39 

40 

48

45 

37 

34 

32 

32

32 

31 

30 

30 

30

30 

30 

30 

30 

30

29 

29 

29 

30 

30

30 

30 

31 

31 

31 

30

Nov.

30 

30 

30 

30 

28

27 

29 

28 

26 

28

30 

30 

29 

30 

30

29

27 

25 

25 

35

26 

27 

29 

30

30

30 

29 

28 

29

30

Dec.

30 

27 

25 

25 

25

26 

24 

28 

25 

26

27 

27 

26 

24 

24

22 

24 

24 

24 

*24

24 

24 

25 

25

b24

b24 

b24 

25 

26 

27 

26

Jan.

27 

26 

b25 

b24 

23

23 

23 

23 

24

24

*24 

24 

24 

24 

24

23 

21 

21 

21 

21

22 

23 

23 

22 

22

22 

22 

22 

21 

22 *24

Feb.

b23 

22 

23 

22 

22

24 

22 

b2Z 

b2Z 

21

21 

21 

21 

b21 

b21

21 

»21 

21 

21 

20

20 

20 

21 

20 

21

20 

20 

20

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1943 

ary

ter year 1948-49 .......................

Mar.

20 

20 

20 

20 

20

20 

20 

21 

20 

19

20 

21 

21 

21 

21

23 

24 

24 

26

26

25 

24 

24 

23 

22

21 

21 

22 

21 

21 

20

Apr.

20 

20 

20 

20 

21

22 

22 

25 

25 

23

22 

21 

21 

22 

22

22 

24 

26 

30 

30

30 

30 

34 

48 

63

70 

86 

115 

158 

164

Secondfoot -day a

1,018 

854 

781

38,901

714 

594 

671 

1,256 

15,377 

20,705 

5,464 

3,518 

1,753

52,705

Peak discharge (base, 800 sec. -ft.).- May 29 (ll p.m.)

May

153 

180 

266 

315 

279

218 

202 

205 

231 

302

350 

400 

457 

559

774

665 

568 

626 

541 

528

432 

388 

365 

420 

554

748 

806 

938 

1,030 

999 

878

Maximum

48 

30 

30

1,260

27 

24 

26 

164 

1,030 

1,300 

254 

143 

72

1,300

June

732 

652 

574 

561 

532

524 

516 

557 

908 

964

1,090 

1,300 

1,090 

944 

842

818 

872 

1,070 

1,100 

818

624 

549 

492 

450

387

354 

371 

339 

302 

273

July

254 

240 

254 

243 

230

220 

205 

194 

176

196

183 

189 

192 

161 

155

159 

165 

161 

169 

157

145 

145 

139 

139 

147

145 

143 

141 

141 

139 

137

Minimum

29 

25 

24

21

21 

20 

19 

20 

153 

273 

137 

75 

51

19

Aug.

134 

134 

136 

134 

132

132 

134 

143 

139 

134

128 

126 

123 

116 

114

114 

111 

106 

104 

104

104 

104 

106 

101 

96

93 

92

88 

81 

80 

75

Mean

32.8 

28.5 

25.2

106

23.0 

21.2 

21.6 41.9' 

496 

690 

176 

113 

58.4

144

1,150 sec. -ft. j June 12 (3 a.m.)

Sept.

72 

67 

65 

63 

63

60 

58 

58 

56 

59

63 

60 

59 

59 

60

58 

59 

59 

58 

56

56 

56 

54 

54 

52

51 

51 

51 

58 

58

Runoff In 

acre-feet

2,030 

1,690 

1,550

77,160

1,420 

1,180 

1,330 

2,490 

30,500 

41,070 

10,840 

6,980 

3,480

104,600

1,500 sec.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Jan. 5-10, 17-31; discharge computed on basis of 2 discharge measurements, weather records, and records for station near Vernal.
GREEN RIVER BASIN 233

Ashley Creek near Jensen, Utah

Location.- Water-stage recorder, lat. 40°22', long. 109°25', in NE^ sec. 23, T. 5 S., R. 22 

K., Immediately downstream from U. S. Highway 40 bridge, 3 miles upstream from mouth 

and 3 miles west of Jensen.

Drainage area.- 386 square miles.

Records available.- October 1948 to September 1949.

Extremes.- Maximum discharge during year, 1,480 second-feet June 12 (gage height, 5.35 

reet); minimum daily recorded, 4.2 second-feet Aug. 22.

1946-49: Maximum discharge, that of June 12, 1949; minimum recorded, 1.5 second-feet 

Sept. 8, 9, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnich are fair. Plow increased by water released from Oaks Park Reservoir (capacity, 

6,250 acre-feet) on Brush Creek and diverted to Ashley Creek Basin for irrigation (see 

p.228). Union Canal is only diversion between gage and mouth of Creek.

Discharge, In second-feet, water year October 1946 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.7 

5.7 

5.7 

5.7 

13

9.2 

8.7 

8.7 

9.7 

8.7

8.7 

8.7 

8.2 

7.2 

5.7

5.7 

5.7 

5.7 

6.2 

7.2

a7.4 

a7.6 

a7.6 

a7.8 

aS.O

a8. 8 

alO 

11 

14 

11 

13

Nov.

11 

13 

14 

14 

12

11 

13 

14 

14 

16

19 

19 

19 

19 

19

19 

19 

17 

17 

20

21 

21 

20 

21 

20

20 

19 

20 

20 

20

Dec.

21 

(*)

> 23

(*)

> 25

Jan.

(*)

> 27

> 32

' 36 

(*)

Feb.

> 40 

( )

(*)

43

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Nav

June 

July 

Augu 

Sept

Wa

mber ..... ..---- -------- ----------

lendar year 1948 

ai*y

ter year 1948-49 .......................

Mar.

> 48 

(*)

66 

76 

86 

92 

94

a96 

a98 

100 

94 

94

81 

68 

74 

69 

63

57 

50 

53 

46 

43 

40

Apr.

39 

40 

39 

36 

35

31 

26 

28 

27 

22

20 

20 

19 

20 

21

21 

20 

19 

19 

19

16 

15 

14 

14 

14

13 

14 

16 

11 

13

Secondfoot -days

256.0 

521 

745

17,074.8

986 

1,159 

2,020 

661 

5,733 

15,591 

1,012.9 

230.2 

300.7

29,213.8

May

13 

13 

11 

16 

16

20 

26 

22 

21 

20

24 

30 

41 

108

360

238 

222 

265 

227 

186

157 

114 

98 

87 

151

314 

443 

533 

632 

750 

575

Maximum

14 

21

712

100 

40 

750 

1,220 

74 

11 

18

1,220

June

439 

320 

292 

317 

343

330 

350 

417 

774 

900

1,020 

1,220 

1,130 

885 

718

627 

650 

736 

1,160 

831

558 

388 

271 

217 

167

118 

144 

105 

94

70

July

51 

34 

43 

68 

70

74 

53 

50 

39

37

44 

44

43 

40

37

30 

31 

25 

23 

20

20 

16 

16 

16 

15

15 

16 

14 

9.7 

10 

9.2

Minimum

5.7 

11

-

40 

11 

11 

70 

9.2 

4.2 

6.2

4.2

Aug.

9.7 

8.7 

11 

9.2 

7.2

7.2 

6.7 

7.2 

8.2 

8.2

10 

7.7 

8.2 

8.2 

8.2

8.7

7.2 

7.7 

6.7 

6.2

4.6 

4.2

5.7 

6.2 

6.7

7.2 

7.2 

6.2

6.7 

6.7 

6.7

Mean

8.26 

17.4 

24.0

46.6

31.8 

41.4 

65.2 

22.0 

185 

520 

32.7 

7.42 

10.0

80.0

Sept.

7.2 

7.7 

7.7 

7.2 

7.2

7.2 

6.7 

6.2 

7.2 

7.2

18 

11 

11 

12 

11

9 

8 

8 

8 

8

9.7 

10 

11 

11 

11

11 

11 

11 

18 

18

Runoff In 

acre-feet

508 

1,030 

1,470

33,860

1,960 

2,300 

4,010 

1,310 

11,370 

30,920 

2,020 

456 

596

57,950

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of weather records and records for other Ashley Creek stations.

Note.- Stage-discharge relation affected by Ice Nov. 28-30; Dec. 2 to Mar. 10 (no gage-height record Dec. 31 to Jan. 4, Jan. 10, 11, 14-24, Jan. 26 to Feb. 9, Feb. 15-21; discharge computed as explained In footnote a).
234 GREEN RIVER BASIN

South Fork Ashley Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40 D 44', long. 109°42', in NE^ sec. 17, T. IS., R. 

"JU E. , at lower end of Hicks Park, 3^ miles upstream from mouth and 21 miles northwest 

of Vernal.

Drainage area.- 20 square miles.

Records available.- October 1943 to September 1949.

Extremes.- Maximum discharge during year, 460 second-feet June 18 (gage height, 3.84 feet), 

by slope-area method; minimum not determined, occurred during period of no gage-height 

record.

1943-49: Maximum discharge, that of .Tune 18, 1949; minimum daily recorded, 2.5 

second-feet Sept. 25, 1948, but probably was less during periods of no gage-height 

record.

Remarks.- Records good except those for periods of ice effect or no gage-height record,

which are poor. Flow slightly regulated at headwaters by Twin and Goose Lake Reservoirs 

(capacity, 500 acre-feet). No diversion above station.

Discharge, in second-feet , water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.5 

5.6 

3.2 

3.0 

4.6

4.1 

3.6 

3.7 

3.6 

3.4

3.0 

2.8 

2.8 

2.8 

3.6

2.8 

2.5 

3.2 

2.8 

2.7

*2.5 

2.5 

2.3 

2.3 

1.9

1.9 

2.3 

3.2 

4.6 

5.0 

3.7

Nov.

3.4 

3.0

. 2.5

Dec.

' 2.1

1"

Jan.

> 1.8

. 1.6

Feb.

' 1.6

Month

Goto 

Nove 

Dece

Ca

Janu 

Febri 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ................

Mar.

 \

* 1.6 

i

2.0

Apr.

2.5 

2.6 

2.7 

2.7 

2.9

3.2 

3.6 

4.0 

4.3 

4.5

4.7 

5.2 

5.5 

5.3 

5.4

6.0 

7.0 

8.0 

10 

12

13 

16 

20 

23 

25

24 

23 

24 

25 

25

Secondfoot-days

98.5 

76.4 

63.3

5,963.2

52.6 

44.8 

58 

320.1 

2,399 

4,148 

925 

419.9 

137.8

8,743.4

May

24 

23 

26 

*29 

27

25 

24 

25 

24 

27

48 

57 

84 

120 

126

88 

67 

67 

64 

64

52 

45 

51 

76 

118

151 

157 

173 

199 

185 

153

Maximum

5

248

25 

199 

274 

57 

31 

7.7

274

June

107 

100 

78 

73 

73

73 

78 

132 

192 

214

249 

268 

222 

197 

178

192 

204 

274 

227 

166

136 

111 

95 

85 

79

82 

78 

68 

62 

55

July

51 

50 

57 

53 

47

43

40 

37 

37 

37

35 

47 

44

31 

27

25 

25 

24 

28 

23

21 

17 

17 

18 

16

15 

14 

13

11 

11 

11

Minimum

1.9

-

2.5 

23 

55 

11 

5.9 

3

-

Aug.

11 

11 

11 

10 

13

14 

22 

31 

26 

24

22 

20 

19

17 

17

20 

17 

15 

12

10

8.4

7.7 

8.0 

8.0 

7.1

6.5 

6.5 

6.2 

5.9 

6.2 

7.4

Mean

3.18 

2.55 

2.04

16.3

1.70 

1.6 

1.87 

10.7 

77.4 

138 

29.8 

13.5 

4.59

24.0

Sept.

7.7 

6.8 

6.5 

5.6 

5.3

4.8 

4.5 

4.5 

4.5 

6.2

6.8 

5.0 

4.8 

5.3 

4.6

4.1 

3.7 

3.6 

3.6 

3.6

3.4

3.2 

3.2 

3.2 

3.2

3.0 

3.2

3.6 

5.3 

5.0

Runoff in 

acre-feet

195 

152 

126

11,830

104 

88.8 

115 

635 

4,760 

8,230 

1,830 

833 

273

17,340

Peak discharge (base, 200 see.-ft.).- May 29 (5:50 p.m.) 268 sec.-ft.; June 11 (9 p.m.) 568 sec.- 

ft.; June 18 (4:30 p.m.) GO sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 3 to May 10 (no gage-height record Nov. 4 to 

May 4j discharge computed on basis of 1 discharge measurement, weather records, and records for 

nearby streams.
GREEN RIVER BASIN 235 

Dry Fork above sinks, near Dry Fork, Utah

Location.- Water-stage recorder, lat. 40°38', long. 109°49', in sec. 20, T. 2 S., R. 19 E. 

(unsurveyed), 9 miles northwest of Dry Fork and 14 miles upstream from mouth.

Drainage area.- 48 square miles.

Records available.- March 1939 to September 1949.

Average discharge.- 10 vears, 40 ^ second-feet.

Extremes.- Maximum discharge during year, 880 second-feet June 18 (gaga height, 4.85 feet), 

by slope-area method; minimum not determined, occurred during period of no gage-height 

record.

1939-49: Maximum discharge, that of June 18, 1949; minimum recorded, 4.7 second-feet 

Apr. 26, 1948.

Remarks.- Records good except those for period of no gage-height record, which are poor.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

111 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

10 

9.7 

10 

13

12 

11 

11

11 

10

10 

10 

9.7 

*9.5 

10

9.2 

8.4 

8.2 

.9

.7

.5 

.5

.1

.1 

.3 

.9 

.2 

.7 

.9

Nov.

7.7 

7.9

' 6.0

(*)

> 5.5

Dec.

> 4.5

Jan.

 4.0

Feb.

 3.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

M»v

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 300 sec. -ft.).- May

Mar.

> 2.5

. 4.5

Apr.

 7.0

> 10

12 

13 

15 

16 

17

14 

18 

*22 

25 

24

Secondfoot-days

281.1 

176.1 

129. 5

10,620.0

124.0 

98.0 

124.5 

346.0 

3,837 

7,017 

1,452 

559 

338.6

14,492.8

May

23

29 

40 

53 

59

52 

50 

44 

42

56

78 

93 

117 

162 

177

151 

132 

129 

117 

117

99

86 

86 

107 

166

207 

250 

269 

293 

300 

253

Maximum

13

7.9

362

25 

300 

469 

91 

39 

15

469

29 (8 p.m.) 343 sec. -ft.

June

212

177 

149 

134 

124

125 

136 

186 

279 

351

459 

531 

394

325 

300

314 

343 

469 

398 

262

207 

177 

162 

134 

124

124 

122 

112 

98 

88

July

78 

75 

91 

88

77

68 

65 

60 

61 

72

64 

53 

55 

45 

39

38 

40 

33 

41 

32

29 

28 

29 

29

27

25 

24 

22 

22 

21 

21

Minimum

7.1

-

23 

88 

21 

13 

9.5

-

; June 1 1

Aug.

20 

19 

19 

19 

19

19 

19

39 

29 

24

21 

19 

18 

18 

17

16 

16 

16 

16 

15

15 

14 

16 

19 

15

14 

14 

14 

13 

14 

13

dean

9.07 

5.87 

4.50

29.0

4.00 

2.50 

4.02 

11.5 

124 

234 

46.8 

18.0 

11.3

39.7

Sept.

14 

14 

14 

13 

12

11 

11

10 

10 

14

15 

12 

11 

12 

11

11

10 

10 

10 

10

9.7 

9.5 

9.7 

9.5 

9.5

9.7 

10 

10 

13 

13

Runoff In 

acre-feet

558 

349

277

21,070

246 

194 

247 

686 

7,610 

13,920 

2,880 

1,110 

672

28,750

(9 p.m.) 746 sec. -ft..;

June 18 (3 p.m.) 880 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Ho gage-height record Hov. 3 to Apr. 27; discharge computed on basis of 2 discharge measurements, weather records, and records for stations on nearby stream.
236 GREEN RIVER BASIN

North Fork of Dry Fork near Dry Fork, Utah

Location.- Water-stage recorder, lat. 40°38", long. 1090 48', in sec. 17, T. 2 S., R. 19 E. 

a miles upstream from mouth and 9j miles northwest of town of Dry Fork.

Drainage area.- 12 square miles.

Records available.- .April 1946 to September 1949.

Extremes..- Maximum discharge during year, 60 second-feet June 11 (gage height, 2.94 feet); 

minimum not determined, occurred during period of no gage-height record.

1946-49: Maximum discharge, 136 second-feet May 7, 1947 (gage height, 3.60 feat); 

minimum recorded, 0.4 second-foot Oct. 19, 1947.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

wnich are poor. No diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

El22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.3 

2.4 

2.4 

2.2 

2.0

1.8 

1.8 

1.7 

1.7 

1.6

1.6 

1.6 

1.6 

1.5 

1.5

1.5 

1.3 

1.4 

1.3 

1.3

1.3 

1.3 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2 

1.2

Nov.

1.2 

1.3 

1.2 

.8

» b.8

(*) 

> .'7

Dec.

. 0.6

Jan.

0.5

Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

 0.4 

.6

Apr.

 1.0

. 2.0

2.5 

3.2 

3.8 

4.5 

5.0

4.5 

6.0 

8.2 

8.8 

8.2

Secondfoot-days

47.9 

24.2 

18.6

1,614.0

15.5 

11.2 

15.6 

84.7 

823.9 

872 

324.1 

128.5 

76.6

2,442.8

May

7.9 

11 

17 

19 

17

14 

12 

12 

14 

21

27 

28 

30 

38 

40

32

30 

34 

31 

30

26 

24 

22 

23 

30

37

39 

41 

42 

40 

35

Maximum

2.4 

1.3

56

8.8 

42 

43 

17 

5.7 

3.0

43

June

30 

28 

26 

26 

24

24 

25 

28 

31 

32

40 

43 

36 

34 

33

34 

33 

43 

37 

32

30 

28 

27 

25 

23

23 

21 

20 

18 

18

July

17 

16 

17 

16 

15

14 

14 

13 

13 

13

12 

12 

11 

11 

9.8

10 

9.5 

9.5 

9.2 

8.5

7.9 

7.9 

7.6 

7.2 

6.9

6.6 

6.4 

6.1 

5.9 

5.7 

5.4

Minimum

1.2

-

7.9 

18 

5.4 

3.2 

2.2

-

Aug.

5.2

5.2 

5.0 

5.0 

5.0

5.0 

4.8 

5.7 

5.0 

4.8

4.5 

4.3 

4.1 

4.1 

4.1

4.0 

4.0 

3.8 

3.7 

3.7

3.7 

3.5

3.7 

3.8 

3.5

3.3 

3.2 

3.2 

3.2

3.2 

3.2

Mean

1.54 

.81 

.6

4.41

.5 

.4 

.5 

2.82 

26.6 

29.1 

10.5 

4.15 

2.55

6.69

Sept.

3.0 

3.0 

3.0 

2.9 

2.9

2.7 

2.7 

2.7 

2.7 

2.9

3.0 

2.6 

2.6 

2.6 

2.6

2.5 

2.5 

2.4 

2.4

2.3

2.3 

2.3 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.4 

2.4

Runoff In 

acre -feet

95 

48

37

3,200

31 

22 

31 

168 

1,630 

1,730 

643 

255 

152

4,850

Peak discharge (base, 70 sec.-ft).- Ho peak above base. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 20 to Apr. 27; discharge computed on basis of 1 discharge measurement, weather records, and records for Ulnta River above Clover Creek, near Neola.
GREEN RIVER BASIN 237

East Fork of Dry Fork near Dry Fork, Utah

Location.- Water-stage recorder, lat. 40 0 39', long. 109°46', in sec. 14, T. 2 S., R. 19 E. 

(unsurveyed), 3f miles upstream from mouth and 8 miles northwest of town of Dry Fork.

Drainage area.- 12 square miles.

Records available.- April 1946 to September 1949.

Extremes.- Maximum discharge during year, 240 second-feet June 18 (gage height, 4.27 feet), 

6y slope-area determination; minimum not determined, occurred during period- of no gageheight record.

1946-49: Maximum discharge, that of June 18, 1949; minimum not determined.

Remarks.- Records good except those for periods of ice effect or no 

which are poor. No diversion above station.

3-height record,

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.6 

1.6 

1.6 

1.7 

2.0

1.6 

1.6 

1.6 

1-6 

1.5

1.5 

1.4 

1.4 

1.4 

1.5

1.4 

1.4 

1.4 

1.4 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.2 

1.2 

1.4 

1.4 

1.5

Nov.

1.4 

1.3 

1.3 

bl.O

' .7 

> .6

Dec.

 0.4

Jan.

 0.3

Feb.

0.2

Month

Octo 

Hove 

Dece

Ca

janu 

Pebr 

Hare 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 ...............

Mar.

> 0.2 

.3

Apr.

 0.5

» .8

.9 

1.0 

1.2 

1.4 

1.6

1.4 

2.5 

3.6 

4.2 

4.0

Seeondfoot-days

45.0 

22.1 

12.4

2,321.2

9.3

5.6 

7.8 

34.8 

906.5 

1,828 

420.6 

102.0 

65.8

3,459.9

May

3.6 

4.5 

6.1 

6.8 

6.8

6.6 

5.8 

5.1 

5.6 

6.6

10 

15 

22 

35 

47

36 

29 

50 

25 

24

21 

19 

18 

23 

38

59 

74 

83 

88 

86 

66

Maximum

2.0 

1.4

95

4.2 

88 

116 

28 

6.1 

3.0

116

June

52 

43 

36 

35 

34

33 

33 

47 

7O 

73

83 

92 

88 

86 

84

88 

88 

116 

88 

80

7O 

67 

59 

54 

47

44

39 

36 

33 

30

July

28 

27 

26 

24 

22

22 

20 

19 

19 

19

18 

16 

15 

13 

11

11 

10 

9.8 

10 

8.5

8.2 

7.6 

7.4 

7.1 

7.1

6.8 

6.4 

5.8 

5.6 

5.4 

4.9

Minimum

1.2

-

3.6 

30 

4.9 

1.4 

1.7

-

Aug.

4.7 

4.5 

4.5 

4.3 

4.7

4.7 

4.2 

6.1 

4.5 

4.2

3.8 

3.4 

3.2 

3.0 

3.0

3.0 

2.9 

2.9 

2.8 

2.8

2.4 

2.3 

2.8 

2.9 

2.3

1.7 

1.5 

1.4 

1.7 

2.8 

2.9

Mean

1.45 

.74 

.4

6.34

.3

'25 

1.16 

29.2 

60.9 

13.6 

3.29 

2.19

9.48

Sept.

2.9 

2.8 

2.8 

2.6 

2.3

2.2 

2.2 

2.2 

2.0 

2.6

3.0 

2.6 

2.4 

2.4 

2.2

2.0 

1.8 

1.8 

1.8 

1.8

1.7 

1.7 

1.7 

1.7 

1.8

1.8 

1.8 

2.0 

2.8 

2.4

Runoff In 

acre-feet

89 

44 

25

4,610

18 

11 

15 

69 

1,800 

3,630 

834 

202 

131

6,870

Peak discharge (base. 100 see.-ft.).- May 29 (7 p.m.) 112 sec.-ft.; June 18 (2 p.m.) 240 sec.-ft.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 5 to Apr. 27j discharge computed on basis of weather records and

5s~ for Ulnta River above Clover Creek, near Neola.
238 GREEN RIVER BASIN 

Duchesne River at Provo River Trail, near Hanna, Utah

Location - Water-stage recorder, lat. 40°37', long. 110°54 I , in SE-J- sec. 27, T. 3 N. , 

FT9 W. Uinta meridian, 400 feet downstream from Provo River Trail, 7 miles upstream 

from Hades Creek, and 12 miles northwest of Hanna. Datum of gage is 8,13,3.97 feet 

above mean sea level (levels by Bureau of Reclamation).

Drainage area.- 39 square miles.

Records available- July 1929 to September 1933, October 1935 to September 1943, October 

1944 to September 1949.

Average discharge.- 17 years (1929-33, 1935-43, 1944-49), 54.0 second-feet.

Extremes.- Maximum discharge during year, 892 seccnd-feet June 12 (gage height, 3.

; minimum recorded, 2.8 second-feet Oct. 26.

1929-33, 1935-43, 1944-49: Maximum discharge recorded, that of June 12, 1949-

minimum recorded, 1 seccud-foot . 30, 1931, Nov. 28, 1941.

Remarks.- Records good except those for periods of ice effect or no gage-height recori,

which are poor. Records show flow of river at proposed diversion tunnel to Provo

River. Ho diversion abL i7 t- stpt

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.3

4.3 

4.0 

4.9

7.0

5.8 

5.8 

5.8 

5.8 

5.5

5.2

4.9 

4.9 

5.2 

5.5

6.4 

5.5 

5.5 

5.5 

5.2

5.?

4.9 

4.9 

4.9 

4.6

4.3 

5.2 

5.5

6.7 

6.7 

6.1

Nov.

6.7 

6.7 

7.3 

7.0 

7.6

7.6 

7.3 

b7.0 

b7.0 

b7.4

b7.4 

b7.0 

7.0 

7.0 

6.7

6.4 

6.4 

b7.0 

b7.1 

b7.5

b7.5 

b7.1 

b7.2 

b7.2 

b7.2

b7.0 

b6.8 

b6.8 

7.0 

7.0

Dec.

, e.s

Jan.

> 6.0 

, 5.5

Feb.

' 5.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948

ter year 1948 49 ...............

Mar.

' 6.0 

 7.0

Apr.

7.8 

7.9 

8.4 

9.0 

10

11 

12 

13 

14 

14

15 

17 

20 

18 

20

25 

30 

35 

37 

38

34

38 

56 

74 

78

79 

81 

99 

109 

102

Secondfoot-days

166.0 

211.9 

201.5

14 57° * 3

178.0 

154.0 

202.0 

1,112.1 

6,105 

12,641 

2,474 

449 

274.0

24,168.5

May

90 

99 

129 

135 

111

96 

86 

81 

90 

122

152 

170 

187 

239 

295

248 

225

213 

139 

168

146 

135

129 

163 

236

322 

343 

358 

415 

411 

322

Maximum

7.0 

7.6

502

109 

415 

765 

222

21 

13

765

June

263 

216 

177 

161 

154

156 

179 

239 

326 

456

580 

725 

730 

685 

685

695

685 

660 

7S5 

611

539 

498 

439

365 

347

322

279 

260 

236 

208

July

182 

174 

192 

222 

177

146 

126 

113 

106 

101

86 

78 

70 

66 

59

55 

52

50 

50 

44

40 

38 

36 

34

31

29 

26 

25 

24 

23 

20

Minimum

4.0 

6.4

-

7.8 

81 

154 

20 

10 

7.3

-

Aug.

20 

18 

18 

18 

17

18 

17 

20 

21

21

18 

16 

14 

14 

13

14 

13 

12 

11 

11

11 

10 

12 

16 

12

11 

11 

11 

11 

10 

10

Mean

5.35

7.06 

6.5

39.8

5.74 

5.5 

6.52 

37.1 

197 

421 

79.8 

14.5 

9.13

66.2

Sept.

10 

11 

10 

10 

9.4

9.1 

8.8 

8.8 

8.8 

9.7

12 

9.7 

10 

11 

9.7

9.1 

8.5 

8.2 

7.9 

7.9

7.6 

7.6 

7.3 

7.3 

7.3

7.6 

7.6 

9.1 

13 

10

Runoff In 

acre-feet

329 

420

400

28,900

353 

305 

401 

2,210 

12,110 

25,070 

4,910 

891 

543

47,940

Peak discharge (base, 500 sec. -ft.).- June 12 (9 p.m.) 892 sec. -ft.

Stage-discharge relation affected by ice. 

Note.- No gage-height record Nov. 29 to Apr. 18; discharge comp 

records for other Duchesne River stations.

ted on basis of weather records and
GREEN RIVER BASIN 239

Duchesne River near Hanna, Utah

Location.- Water-stage recorder, lat. 40 0 33'00", long. 110°52'15", in tffi£ sec. 35, T. 2 

N., K. 9 W. Uinta meridian, 250 feet downstream from Hades Creek and 7 miles northwest of Hanna.

Drainage area.- 78 square miles.

Records available.- August 1921 to September 1923, July 1929 to September 1930 (published 

as North fork Duchesne River near Hanna), March 1946 to September 1949.

Extremes - Maximum discharge during year, 1,240 second-feet June 12; minimum recorded, 12 

second-feet Nov. 19.

1921-23, 1930, 1946-49: Maximum discharge observed, 1,490 second-feet June 8, 9, 

1922; minimum recorded, that of Nov. 19, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. One small diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

Bay

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

15

14 

14 

15 

19

16 

15 

15 

15 

15

15 

15 

15

15 

16

a!6 

a!6 

a!6 

al5 

al5

15 

14 

14 

14 

14

14

14 

16 

16 

16 

16

Nov.

16 

19 

19 

17 

b!7

bl8 

18 

18 

18 

19

19 

18

17 

17 

16

16 

*15 

15 

14 

17

16 

15 

16 

15 

15

15 

> al5

Dec.

^ a!5

,

f bis 

' a!5

Jan.

' a!4

> a!3

Feb.

 a!3 

 a!5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948-

ter year 1948-49 .......................

Mar.

, a!7

, a21

. a25

Apr.

a24 

a24 

a26 

a 30 

a35

a40 

a44 

a50 

a5O 

a50

a56 

62 

67 

60 

57

70 

84 

96 

104 

108

94

104 

140 

181 

188

191 

198 

228 

244 

233

Secondfoot -days

470 

495

465

28,023

417 

390 

655 

2,938 

11,371 

14,183 

4,967 

1,224

631

43,206

May

203 

213 

266 

277 

241

206 

191 

174 

186 

246

313 

336 

373 

428 

530

459 

443 

439 

387 

349

304 

277 

266 

304 

413

546 

584 

601 

648 

622 

546

Maximum

19

19

856

244 

648 

1,050 

353 

57 

26

1,050

June

478 

402 

346 

326 

310

313 

339 

417 

518 

656

825 

1,030 

1,040 

964 

953

974 

953 

933 

1,O50 

912

790 

728 

656 

575 

538

518 

474 

432 

387 

346

July

313 

298 

320 

353 

301

266 

239

218 

206 

203

181 

169 

158 

147

136

131 

125 

121 

123 

108

102 

96 

92 

83 

79

75 

72 

67 

64 

62 

59

Minimum.

14

-

24 

174 

310 

59 

26 

17

-

Aug.

57 

56 

53 

51 

50

50 

48 

53 

57 

56

47 

43 

41 

39 

37

37 

36 

34 

32

31

29

29 

31 

32 

31

29 

28 

28 

27 

26 

26

Mean

15.2 

16.5 

15.0

76.6

13.5 

13.9 

21.1 

97.9 

367 

639 

160 

39.5 

21.0

118

Sept.

26 

26 

26 

25 

24

22 

22 

21 

22 

23

25 

22 

22 

23 

22

20 

19 

19 

19 

18

18 

18 

18 

17 

17

17

17 

18 

24 

21

Runoff in 

acre-feet

932 

982 

922

55,590

827 

774 

1,300 

5,830 

22,550 

38,050 

9,850 

2,430 

1,250

85,700

Peak discharge (base. 9OO see.-ft.).- June 12 (1O:30 p.m.) 1,240 sec.-ft. 

* Winter discharge measurement made on this day.

a No gage-Height record; discharge computed on basis of 1 discharge measurement, weather records, 

and records of other Duchesne River stations, 

b Stage-discharge relation affected by Ice.
240 GREEN RIVER BASIN

Duohesne River near Tabiona, Utah

Location.- Water-stage recorder, lat. 40°18'00", long. 110°36'10", in SW^SE^ sec. 18, T. 2 

S. , K. 6 W. Uinta meridian, at bridge on State Highway 35, 6-J miles upstream from Rock 

Creek and 8 miles southeast of Tabiona.

Drainage area.- 352 square miles.

Records available.- January 1919 to September 1949.

Average discharge.- 30 years, 209 second-feet.

Extremes.- Maximum discharge during year, 1,550 second-feet June 13 (gage height, 7.00 

reet); minimum, 69 second-feet Oct. 12.

1919-49: Maximum discharge observed, 2,500 second-feet June 13, 1921, from rating 

curve extended above 1,100 second-feet; minimum recorded, 27 second-feet Oct. 17, 1934.

Remarks.- Records excellent except those for periods of ice effect, which are fair. 

Several diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

81 

75 

75 

76 

79

75 

75 

71 

72 

74

76 

72 

75 

78 

80

79 

81 

67 

90 

94

94 

94 

96 

94 

96

94 

84 

106 

118 

116 

114

Nov.

109 

111 

120 

116 

109

118 

128 

109 

116 

124

126 

122 

122 

118 

118

120 

118 

*109 

111 

118

118 

111 

118 

116 

114

111 

b!09 

b!07 

b!06 

b!07

Dec.

Ill 

111 

109 

109 

bllO

bl!6 

«bl!7 

b!18 

bill 

bl!3

114 

113 

114 

113 

106

blOl 

blOS 

bllO 

bllO 

bllO

109 

111 

111 

b!06 

blOO

b98 

blOO 

blOS 

b!03 

blOO 

100

Jan.

(*) 

> b98

. b90

> b88 

(*)

Feb.

> b88

. b90

93 

98

93 

90 

98

Month

Goto 

Hove

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Va

lendar year 1948

ter year 1948-49 .......................

Mar.

94 

93 

96 

93 

94

93 

93 

 94 

93 

96

96 

96 

96 

98 

102

106 

109 

108 

98 

122

118 

118 

113 

109 

104

108 

108 

108 

108 

102 

104

Apr.

101 

102 

108 

116 

132

138 

141 

152 

154 

154

157 

177 

196 

185 

175

185 

210 

225 

237 

249

246 

249 

298 

362 

396

400 

400 

459 

484 

497

Secondfoot-days

2,671 

3,459 

3,362

61,393

2,898 

2,512 

3,170 

7,085 

22,497 

29/153 

8,823 

3,184 

2,950

91,764

May

435 

419 

510 

576 

527

467 

435 

396 

403 

493

651 

685 

725 

779 

960

924 

900 

960 

812 

740

675 

631 

603 

651 

784

966 

1,030 

1,060 

1,130 

1,150 

1,020

Maximum

118 

128 

118

1,260

98 

122 

497 

1,150 

1,430 

584 

114 

116

1,430

June

906 

784 

675 

665 

636

646 

680 

757 

867 

990

1,160 

1,320 

1,430 

1,410 

1,370

1,390 

1,380 

1,350 

1,390 

1,340

1-,160 

1,040 

966 

856 

774

740 

700 

646 

594 

531

July

488 

480 

510 

584 

518

459 

431 

392 

384 

369

343 

329 

305 

285 

272

256 

249 

225 

222 

210

199 

180 

157 

141 

134

130 

124 

118 

114 

111 

104

Minimum

71 

106 

98

-

93 

101 

396 

531 

104 

93 

84

-

Aug.

102 

104 

104 

102 

102

' 102 

109 

111 

114 

111

108 

102 

101 

104 

102

101 

101 

101 

96 

96

93 

93 

98 

104 

104

102 

104 

106 

104 

102 

101

Mean

86.2 

115 

108

168

93.5 

89.7 

102 

236 

726 

972 

285 

103 

98.3

251

Sept.

102 

102 

99 

94 

94

93 

93 

93 

99 

104

106 

101 

108 

116 

108

106 

101 

99 

99 

99

101 

102 

101 

96 

93

92 

90 

88 

87 

84

Runoff In 

acre -feet

5,300 

6,860 

6,670

121,800

5,750 

4,980 

6,290 

14,050 

44,620 

57,820 

17,500 

6,320 

5,850.

182,000

Peak discharge (base. 900 sec.-ft.K- May 18 (6s30 a.m.) 1,060 sec.-ft.j Hay 30 (7:30 a.m.) 1,220 

ec.-rt.j June 13 (6:30 a.m.) 1,550 sec.-ft.

* Winter discharge measurement; made on this day. 

b Stage-discharge relation affected by ice.
GREEN RIVER BASIN 241

Duchesne River at Duchesne, Utah

Location.- Water-stage recorder, lat. 40°09'55", long. 110°23'50", in SW^NE^ sec. 1, T. 

 4 S., H. 5 W. Uinta meridian, at Duchesne, half a mile upstream from Strawberry River.

Drainage area.- 660 square miles.

Records available.- December 1917 to September 1949.

Average discharge.- 32 years, 371 second-feet.

Extremes.- Maximum discharge during year, 3,060 second-feet June 20 (gage height, 5.63 

reet); minimum, 74 second-feet Oct. 3.

1917-49: Maximum discharge observed, 4,420 second-feet June 10, 1922 (gage height, 

8.65 feet, site and datum then in use); minimum observed, 15 second-feet July 11, 1931.

Remarks.- Records good except those for period no gage-height record, which are fair. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

96 

85 

78 

85 

117

101 

109 

104 

107 

107

96 

91 

89 

94 

109

109 

114 

120 

123 

130

130 

130 

130 

13O 

117

114 

107 

156 

182 

171 

168

Nov.

156 

160 

171 

168 

153

164 

175 

160 

153 

190

194 

186 

190 

182 

179

182 

182 

164 

153 

171

182 

160 

175 

171 

164

164 

149 

146 

164 

164

Dec.

179 

160 

175 

186 

123

160 

146 

186 

171 

199

211 

215 

207 

199 

171

130 

175 

179 

168 

207

203 

194 

190 

164 

150

145 

150 

160 

165 

163 

160

Jan.

160 

' ISO

Feb.

' ISO 

 160

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Ma v

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar.

. 160

170 

170 

170 

175 

185

199 

211 

211 

220 

228

220 

207 

194 

182 

179

175 

175 

179 

179 

168 

160

Apr.

156 

153 

160 

168 

182

203 

211 

224 

233 

224

220 

242 

289 

284 

265

265 

30O 

320 

342 

353

353 

359 

412 

510 

590

613 

605 

644 

686 

720

Secondfoot -days

3,599 

5,072 

5,391

97,403

4,800 

4,330 

5,557 

10,286 

34,538 

56,050 

18,038 

4,863 

3,901

156,425

May

644 

621 

728 

822 

796

702 

652 

605 

582 

686

911 

1,090 

1,110 

1,190 

1,420

1,420 

1,400 

1,450 

1,280 

1,160

1,050 

983 

920 

956 

1,150

1,470 

1,540 

1,69O 

1,790 

1,930 

1,790

Maximum

182 

194 

215

2,130

228 

720 

1,930 

2,810 

1.31O 

209 

148

2,810

June

1,580 

1,370 

1,190 

1,190 

1,130

1,160 

1,150 

1,280 

1,440 

1,700

2,O50 

2,500 

2.74O 

2,810 

2,770

2,790 

2,750 

2,70O 

2,700 

2,770

2-, 360 

2,110 

1,960 

1,730 

l,58o

1,510 

1,440 

1,300 

1,210 

1,080

July

Minimum

78 

146 

123

70

153 

582 

1,080 

178 

132 

111

78

974 

926 

1,100 

1,310 

1,150

974 

910 

835 

779 

800

732 

670 

646 

583 

535

495 

471 

430 

448 

421

364 

338 

316 

286 

264

246 

232 

222 

209 

194 

178

Aug.

172 

166 

170 

162 

162

162 

162 

183 

202 

209

194 

172 

162 

156 

154

148 

146 

148 

142 

139

135 

132 

136 

154 

162

146 

136 

138 

139 

138 

136

Mean

U6 

169 

174

266

155 

155 

179 

343 

1,110 

1,870 

582 

157 

130

429

Sept.

139 

142 

144 

139 

142

148 

135 

122 

125 

135

135 

132 

132 

149 

144

131 

125 

124 

126 

126

124 

124 

123 

111 

117

117 

117 

118 

124 

131

Runoff In 

acre-feet

7,140 

10,060 

1O,690

193,200

9,520 

8,590 

11,020 

20,400 

68,500 

111,200 

35,780 

9,650 

7/740

310,300

Peak discharge (base, 1,400 sec. -ft.).- May 18 (11 a.m.) 1,560 sec. -ft. j May 30 (1 p.m.) 2,090

sec.-ft.; June zo llOiSO a.m.,) 3,O6O sec.-ft.i July 3 (6:30 p.m.) 2,110 sec.-ft.

Note.- Ho gage-height record Dec. 25 to Mar. ISj discharge computed on basis of 3 discharge 

measurements, weather records, and recerd* for other stations on Duchesne River.
242 GREEN RIVER BASIN

Duchesne River at Myton, Utah

Location - Water-stage recorder, lat. 40°12', long. 110°03', in NW£ sec. 25, T. 3 S., R. 

a w. uinta meridian, at Myton, 3 miles downstream from Lake Fork.

Drainage area.- 2,750 square miles.

Records available.- October 1899 to September 1949 (fragmentary 1903-11).

Average discharge.- 41 years (1899-1902, 1911-49), 603 second-feet.

Extremes.- Maximum discharge during year, 6,450 second-feet June 20 (gage height, 6.85 

feet); minimum, 7.2 second-feet Oct. 2.

1899-1949: Maximum discharge observed, 12,800 second-feet June 10, 1922 (gage 

height, 7.94 feet), from rating curve extended above 8,000 second-feet; minimum discharge, less than 1 second-foot July 16, 1931, and on several days in August and 

September 1934.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Large diversions above station for irrigation. Plow affected by 

reservoirs above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

S

6

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

13 

8.4 

8.4 

11 

20

21 

37 

39 

37 

37

41 

39 

37 

33 

29

31 

33 

35 

37 

33

33 

33

33 

31 

33

35 

33

46 

74 

68 

54

Nov.

63 

63 

89 

105 

98

92 

101 

105 

95 

105

138 

142 

149 

149 

194

205 

205 

186 

171 

209

262 

249 

245 

310 

279

253 

241 

205 

201 

249

Dec.

292 

300 

305 

328 

229

233 

233 

241 

*274 

300

366 

380 

366 

366 

323

229 

270 

296 

279 

320

360 

350 

330 

280 

250

240 

240 

260 

270 

270 

260

Jan.

(*) 

 280

> 260 

(*)

Feb.

. 260

(*)

. 290

310

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu

Sept

Wa

lendar year 1948 

ary

1.. .....................................

ter year 1948-49 .......................

Mar.

. 325

*340 

370

400 

420 

430 

450 

500

560 

590 

*650 

680 

660

620 

*562 

513 

470 

450

430 

430 

440 

425 

420 

390

Apr.

390 

375 

380 

395 

435

486 

502 

508 

568 

562

546 

557 

620 

638 

602

584 

579 

632 

662 

686

698 

730 

803 

1,000 

1,140

1,220 

1,220 

1,250 

1,310 

1,350

Secondfoot-days

1,052.8 

5,158 

9,040

110,140.2

8,360 

7,980 

13 , 800 

21,428 

54,860 

84,580 

20,414 

1,593 

1,746

230,011.8

May

1,310 

1,140 

1,150 

1,350 

1,470

1,340 

1,220 

1,120 

1,030 

1,050

1,300 

1,700 

1,720 

1,710 

1,970

2,130 

2,240 

2,420 

2,410 

2,170

2,010 

1,870 

1,700 

1,610 

1,700

2,000 

2,280 

2,360 

2,440 

2,490 

2,450

Maximum

74 

310 

380

2,140

680 

1,350 

2,490 

5,970 

2,260 

114 

89

5,970

June

2,150 

1,870 

1,620 

1,520 

1,670

1,690 

1,820 

1,810 

1,950 

2,190

2,630 

3,440 

4,030 

4,100 

3,790

3,740 

3,930 

4,160 

5,550 

5,970

4,430 

3,520 

3,060 

2,570 

2,230

2,150 

2,150 

1,880 

1,600 

1,360

July

1,180 

1,020 

1,150 

2,260 

2,180

1,580 

1,300 

1,080 

860 

882

845 

704 

662 

626 

530

455 

530 

496 

395 

332

253 

217 

149 

135 

121

108 

92 

89 

74 

60 

49

Minimum

8.4 

63 

229

4.2

375 

1,030 

1,360 

49 

31 

27

8.4

Aug.

44 

39 

37 

39 

37

35 

39 

46 

65 

111

114 

86 

80 

71 

71

63 

52 

41 

39 

35

33 

31 

33 

35 

39

44 

49 

46 

52 

46 

41

Mean

34.0 

172 

292

301

270 

285 

445 

714 

1,770 

2,819 

659 

51.4 

58.2

630

Sept.

29 

31 

37 

44 

44

41 

33 

27 

27 

37

52 

52 

80 

80 

89

83

74 

68 

71 

71

65 

77 

83 

49 

46

60 

65 

65 

83 

83

Runoff in 

acre-feet

2,090 

10,230 

17,930

218,460

16,580 

15,830 

27,370 

42,500 

108,800 

167,800 

40, 490 

3,160 

3,460

456,240

* Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by ice Dec. 20 to Mar. 21 (no gage-height record for 

most of period); discharge computed on basis of 5 discharge measurements, weather records, and 

records for other Duchesne River stations.
GREEN RIVER BASIN 243 

Duchesne River near Randlett, Utah

Location - Water-stage recorder, lat. 40°13', long. 109°47 I , in SE^SE^ sec. 17, T. 33., 

IT!a E. Uinta meridian, a quarter of a mile downstream from Uinta River, 1^ miles southeast of Randlett, and 6y miles southeast of Fort Duchesne.

Drainage area.- 3,920 square miles.

Records available.- October 1942 to September 1949.

Extremes.- Maximum discharge during year, 8,500 second-feet June 19 (gage height, 7.55 

reet); minimum, 36 second-feet Oct. 1.

1942-49: Maximum discharge recorded, that of June 19, 1949; minimum, 12 second-feet 

Sept. 14, 1948.

Remarks.- Records good except those for periods of ice effect, which are fair. Flow regulated by several reservoirs. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

38 

46 

51 

48 

71

69 

79 

90 

86 

73

71 

77 

73 

73 

69

75 

81 

86 

86 

90

84 

81 

75 

75 

69

69 

64 

86 

132 

137 

121

Nov.

118 

129 

137 

154 

142

134 

151 

163 

145 

148

218 

235 

238 

228 

249

272 

279 

253 

228 

253

319 

332 

319 

378 

368

354 

295 

260 

232 

291

Dec.

345

413 

413 

424 

337

299 

341 

350 

359 

413

477 

503 

529 

*516 

477

410 

350 

400 

460 

410

470 

520 

500 

450 

400

380 

370 

380 

400 

430 

420

Jan.

400

(*) 

' 380

(*)

Feb.

* 380

(*) 

> 410

450

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

 *500

550

*600

650 

670 

700 

740 

850

1,050 

*1,250 

1,360 

1,220 

1,080

987 

862 

766 

721 

652

611 

588 

596 

566 

566 

*529

Apr.

523 

516 

510 

523 

536

588 

619 

619 

694 

652

619 

628 

677 

712 

677

644 

636 

677 

694 

721

748 

748 

784 

914 

1,100

1,200 

1,250 

1,250 

1,340 

1,380

Secondroot-days

2,425 

7,022 

12,946

150,101

12,080 

11,500 

22,164 

23,179 

64,190 

116,190 

25,079 

3,385 

3,986

304,146

May

1,360 

1,200 

1,120 

1,320 

1,600

1,460 

1,390 

1,280 

1,210

1,110

1,320 

1,810 

1,920 

1,850 

2,110

2,420 

2,630 

3,080 

3,000 

2,470

2,250 

2,180 

1,950 

1,780 

1,820

2,250 

2,900 

3,160 

3,300 

3,480 

3,460

Maximum

137 

378 

529

2,540

1,360 

1,380 

3,480 

8,230 

2,870 

242 

207

8,230

June

2,850 

2,300 

1,930 

1,730 

2,090

2,090 

2,430 

2,250 

2,700 

3,120

3,970 

5,630 

6,510 

6,160 

5,540

5,230 

5,480 

5,780 

7,470 

8,230

6,510 

4,890 

4,090 

3,400 

2,790

2,580 

2,670 

2,350 

1,870 

1,550

July

1,300 

1,100 

1,210 

2,520 

2,870

2,130 

1,680 

1,380 

1,040 

1,010

1,080 

882 

804 

748 

628

516 

536 

566 

436 

408

307 

287 

232 

242 

238

210 

166 

163 

151 

118 

121

Minimum

38 

118 

299

12

510 

1,110 

1,550 

118 

71 

92

38

Aug.

106 

99 

104 

123 

104

111 

99 

108 

113 

175

242 

201 

142 

132 

111

94 

77 

71 

79 

81

73 

73 

79 

104

116

113 

99 

86 

92 

88 

90

Mean

78.2 

234 

418

410

390 

411 

715 

773 

2,071 

3,873 

809 

109 

133

833

Sept.

96 

101 

116 

134 

129

108 

104 

96 

92 

123

160 

166 

166 

166 

172

172 

157 

134 

137 

142

140 

129 

134 

113 

108

106 

116 

108 

154 

207

Runoff in 

acre-feet

4,810 

13,930 

25,680

297,700

23,960 

22,810 

43,960 

45,970 

127,320 

230,460 

49,740 

6,710 

7,910

603,300

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 16 to Mar. 17 (no gage-height record for 

part of period); discharge computed on basis of 6 discharge measurements, weather records, and 

records for other Duchesne River stations.
244 GREEN RIVER BASIN

West Fork Duchesne River near Hanna, Utah

Location.- Water-stage recorder, lat. 40°27', long. 110°53', In SE^ sec. 27, T. IN., R. 

9 w. Uinta meridian, 1,000 feet upstream from Wolf Creek and 4 miles west of Hanna.

Drainage area.- 61 square miles.

Records available.- May 1904 to October 1904 (fragmentary), August 1921 to March*1922, 

October 1922 to September 1923, October 1945 to September 1949.

Extremes.- Maximum discharge during year, 382 second-feet May 28 (gage height, 3.50 feet); 

minimum recorded, 9.5 second-feet Mar. 25.

1904, 1921-23, 1945-49: Maximum daily discharge, 534 second-feet June 12, 1923; 

minimum recorded, 7.1 second-feet Dec. 17, 1946.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

NO diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

£1 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14

14 

14 

14 

16

17 

17 

17 

17 

17

16 

16 

16 

16 

18

18 

17 

16 

16 

16

16 

16 

16

16

16

16 

17 

19 

19 

18 

18

Nov.

18 

20 

20 

17 

16

16 

17 

13 

16 

18

19

18 

17 

16 

17

17 

17

 a!6 

 a!6

Dec.

> a!6

16 

16 

16 

16

16

16 

16 

15 

12

13

16 

16 

14 

16

16 

15 

14 

13 

13

14

1-

Jan.

> a!5

Feb.

' a!4

> a!3

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ber. .... ................................

lendar year 1948

h.. .....................................

ter year 1948-49 .......................

Mar.

' a!3

> a!5

16 

15

17 

16 

16 

17 

16 

16

Apr.

16 

16 

17 

18 

21

24 

30 

32 

32 

32

36 

41 

43 

43 

42

48 

55

62 

67 

68

65 

72 

90 

103 

110

112 

119 

135 

140 

142

Secondfoot-days

509 

500 

470

13,576

465 

379 

444 

1,831 

6,855 

5,980 

1,748 

822 

585

20,588

.'eak discharge (base, 250 sec -ft. .- May 14 (11:30 p

May

119 

127 

173 

184 

146

127 

119

119 

146 

19T

228 

217 

233 

268 

281

258 

245 

252

226 

219

202 

195 

204 

235 

285

309 

299 

319 

335 

SOS 

279

Maximum

19 

20

350

17 

142 

335 

287 

94 

36 

24

335

m. ) 325 sec

June

256 

228 

208 

213 

202

202 

211 

224 

243 

256

277 

287 

273 

?54 

241

237 

230 

219 

215

191

175 

160 

150 

140 

129

125 

119 

112 

105 

98

July

91 

90 

94 

93 

85

79 

72 

69 

69 

65

62 

60 

56 

54 

53

53 

49 

49 

48 

45

44 

42 

42 

38 

38

38 

36 

36 

34 

32 

32

Minimum

14 

13 

12

12

16 

119 

98 

32 

20 

17

12

Aug.

32 

32 

34 

32

30

30 

32 

32 

36 

32

28 

27 

26 

26 

26

24 

24 

24 

23 

23

23 

22 

24

27 

24

23 

23 

22

21 

20 

20

Mean

16.4 

16.7 

15.2

37.1

15 

13.5 

14.3 

61.0 

221 

199 

56 4 

26.5 

19.5

56.4

Sept.

21 

21 

22

21 

21

20 

20 

20

19 

20

20 

19 

20 

20 

20

19

19 

19 

19 

18

18 

18 

18

17 

18

18 

17 

18 

24 

21

Runoff In 

acre-feet

1,010 

992 

932

26,940

922

752 

881 

3,630 

13,600 

11,860 

3,470 

1,630 

1,160

40,840

-ft.; May 28 (11:30 p.m. Xr382--

sec.-ft.; June 11 (8:30 p.m.) 3Z1 sec.-ft. _ 

a Ho gage-height record; discharge computed on basis of weather records and records for Rock 

Creek near Mountain Home and Ulnta River above Clover Creek, near Heola.
GREEN RIVER BASIN 245

1 N., R.

Wolf Creek above Rhodes Canyon, near Hanna, Utah

Location.- Water-stage recorder, lat. 40°28', long. 110°55', in NW£ sec. 21, T. 1 N 

9 W. Uinta meridian, l| miles upstream from Rhodes Canyon, 2f miles upstream fro 

mouth, and 5j miles northwest of Hanna.

Drainage area.- 9 square miles.

Records available.- October 1945 to September 1949.

Extremes.- Maximum discharge during year, 72 second-feet June 11 (gage height, 2.60 feet) 

minimum not determined, occurred during period of no gage-height record.

1945-49: Maximum discharge, that of June 11, 1949; minimum not determined.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

No diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

.3 

.3 

.1 

.3 '.3

.3 

.3 

.1 

.1 

.1

.3

.3 

.3 

.3 

.3

.3

.3 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.3 

.1 

.1 

.1

Nov.

4.1 

4.1 

4.1 

4.0 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.8

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.6

3.6 

3.6 

3.6 

3.6

3.6 

3.6 

3.4 

3.4 

3.4

Dec.

3.3 

3.3 

3.3 

3.3 

3.3

3.3 

3.3 

3.3 

3.3

3.3

3.3 

3.3 

3.3 

3.2 

3.2

3.2 

3.2 

3.2 

3.2 

3.2

3.0 

3.0 

3.2 

3.2 

3.0

3.0 

3.2 

3.0 

3.0 

3.0 

3.0

Jan.

3.2 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.2

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

2.9 

2.9 

2.9

Feb.

2.9 

2.9 

2.9 

2.9 

2.9

2.9 

2.9 

2.9 

2.9 

2.9

2.9 

2.9 

2.9 

2.9 

2.9

2.9 

2.9 

2.9 

2.8 

2.8

2.8 

3.0 

3.0 

3.0 

2.9

2.8 

2.8 

2.8

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 ...............

Mar.

> 2.8

1"

Apr.

2.7 

2.7 

2.8 

2.8 

2.8

2.9 

3.0 

3.2 

3.1 

3.1

3.5

3.7 

3.7 

3.5 

3.0

3.2 

3.5 

4.0 

3.8 

4.0

4.0 

4.1 

4.3 

4.7 

5.0

5.5 

5.7 

5.9 

6.4

6.6

Secondfoot -days

129.9 

112.5 

98.9

2,205.1

93.1 

80.9 

86.2 

117.2 

559.5 

807 

411 

287.0 

213.4

2,996.6

May

6.6 

6.4 

7.3 

14 

13

11 

9.7 

8.8 

9.7 

15

18 

17 

19 

20 

24

21 

19 

19 

17 

17

16 

16 

16 

17 

22

27 

28 

30 

33 

32 

30

Maximum

4.3 

4.1 

3.3

35

3.2 

3.0

6.6 

33 

41 

19 

11 

7.9

41

June

27 

22 

20 

20 

19

20 

22 

24 

27 

30

36 

41 

37 

36 

34

33 

32 

32 

24 

30

28 

26 

25 

24 

23

23 

22 

21 

20 

19

July

19

18 

18 

19

17

16 

16 

16 

16 

15

14 

14 

13 

13 

13

12 

12

12 

11 

11

11 

11 

11 

11 

11

11 

10 

10 

10 

10 

10

Minimum

4.1 

3.4

3.0

-

2.9 

2.8

2.7

6.4 

19 

10 

8.2 

6.6

-

Aug.

10 

9.7 

10 

10 

10

10 

10 

10 

11 

10

9.7 

9.4 

9.4 

9.4 

9.1

9.4 

9.1 

9.1 

9.1 

9.1

8.8 

8.8 

8.8 

9.1 

8.5

8.5 

8.2 

8.2 

8.2 

8.2 

8.2

'Mean

4.19 

3.75 

3.19

6". 03

3.00 

2.89 

2.78 

3.91 

18.0 

26.9 

13.3 

9.26 

7.11

8.21

Sept.

7.9 

7.9 

7.9 

7.6

7.6

7.3 

7.3 

7.3 

7.3 

7.3

7.3 

7.1 

7.1 

7.1 

7.1

6.8 

6.8 

6.8 

6.8 

6.8

6.8 

6.8 

6.8 

6.6

6.6

6.6 

6.6 

6.8 

7.6 

7.1

Runoff In 

acre-feet

258 

223 

196

4,370

185 

160 

171 

232 

1,110 

1,600 

815 

569 

423

5,940

Peak discharge (base, 25 sec. -ft.).- May 30 (12:15 a.m.) 36 sec. -ft.; June 11 (6:45 p.m.) 72 sec.-

ftT

Mote.- No gage-height record Feb. 19 to Apr. 17; discharge computed on basis of weather records 

and records for nearby streams.
246 GREEN RIVER BASIN

Rook Creek near Mountain Home, Utah

Location.- Water-stage recorder, lat. i40°29' 30" , long. 1IO°34'40", in SW^ sec. 9, T. 1 

fl. , R. 6 W. Uinta meridian, at Lower Stillwater dam site "E", a third of a mile 

apstream from Corral Creek, T miles downstream from South Furk, and 12 miles northwest 

of Mountain Home. Altitude of gage, about 7,250 feet.

Average discharge.- 11 years (1939-49), 166 second-feet.

xfr^n.-E.- Maximum discharge during year, 2,170 second-feet June 19 (gage height, 5.73

; minimum, 15 recond-feet Nov. 5.

ly3i If: Maximum discharge observed, that of June 19, 1949; minimum, 7 secondMar. 13, 1940, Mar. 20, 1942 (probably caused by ice jams above station).

Remarks.- Records excellent. No diversions above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

49 

49

49

50 

56

55

54 

55 

54 

53

54 

52 

51 

53 

53

56 

55 

53 

55 

54

53 

51 

51 

50 

50

49 

49 

60 

57 

56 

53

Hov.

55 

57 

56 

52 

46

53 

54 

37 

50 

53

50 

50 

51 

49 

49

48 

48 

44 

42 

48

48 

45 

49 

49 

47

45 

42 

42 

48 

44

Dec.

46

45 

45 

42 

41

45 

46

48 

48

51

51 

52 

54 

53 

45

44 

50 

49 

48 

49

49 

49 

49 

44 

43

46 

48 

49 

47 

47 

46

Jan.

46 

45 

45 

46 

45

45 

45 

45

46 

46

47 

49

50 

50 

51

48 

47 

49 

49 

49

49 

49 

49 

49 

48

48 

48 

45 

45 

46 

45

Feb.

45 

45 

45 

45 

44

45

45 

46

46 

46

46 

45 

42

. a42

Month

Octo 

Nove 

Dace

Ca

Janu 

Febr 

Marc 

Apr! 

Msv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

> a41

41 

42 

42 

39 

41

41 

41 

41 

41

42

43 

43 

44 

45 

45

45 

43

42 

42 

41

42 

41

41 

42 

342

Apr.

a41 

a42 

a45 

a48 

a52

a56 

a60 

a62 

a60 

a62

a78

ago

88 

81 

77

82 

94

100 

104 

107

101 

110 

135 

174 

192

198 

195 

198 

237 

240

Secondfoot-days

1,644 

1,451 

1,469

45,723

1,464 

1,215 

1,299 

3,209 

15,069 

30,592 

10,520 

3,527 

2,107

73,566

May

218 

240 

326 

366 

326

289 

280 

261 

249

309

406 

449 

453 

514 

595

606 

558 

579 

490 

453

398 

374 

359 

394 

528

704 

782 

818 

888 

995 

862

Maximum

60 

57 

54

1,170

51 

46 

45

240 

995 

1 , 850 

704 

169 

82

1,850

June

740 

611 

533 

528 

481

481

431 

524 

666 

882

1,200 

1,500 

1,590 

1 , 550 

1,480

1,470 

1,430 

1,520 

1,850 

1,590

1,330 

1,230 

1,140 

988 

934

914 

836

776 

699 

638

July

600 

590 

622 

704 

628

553 

504 

449 

432 

458

394 

363 

340 

316 

296

280 

a260 

a250 

a240 

a230

a220 

a210 

a200 

200 

190

180 

176 

a!67 

a!60 

al58 

alSO

Aug.

a!48 

al44 

140 

137 

135

131 

133 

143 

148 

169

135 

124 

118 

114 

111

108 

105 

101 

98 

95

93 

91 

94

108 

95

89 

66

85 

82 

81 

81

Minimum Mean

49 53.0 

37 48.4 

41 47.4

36 125

45 47.2 

43.4 

39 41.9 

41 107 

218 486 

481 1,020 

150 339 

81 114 

61 70.2

37 202

Sept.

81 

81 

80 

77

76

73 

71 

70 

71 

74

82 

74 

73 

76 

71

69 

66 

65 

65

64

63 

63 

62 

61 

61

62 

62 

64

77 

73

Runoff In 

acre-feet

3,760 

2,880 

2,910

90,670

2,960 

2,410 

2,580 

6,360 

29,890 

60,680 

20,870 

7,000 

4,180

145,900

Peak discharge (base, 1,200 sec. -ft.).- June 13 (2:30 a.m.) 1,810 sec. ft.; June 19 (4:30 p.m.)

2,170 sea. -ft. 

a Ho gage-height record; discharge computed on basis of records for Uinta River above Clover 

Creek, near Heola, and West Pork Duchf>sne River near Hanna.
GREEN RIVER BASIN 247

Strawberry Reservoir near Soldier Springs, Utah

Location.- Staff gage, lat. 40°10'10", long. 111°10'45", in sec. 36, T. 3 S., R. 12 W. 

Uinta meridian, at east portal of Strawberry tunnel, 7 miles southwest of Soldier 

Springs and 22 miles east of Springvllle. Datom of gage is mean sea level (levels by 

Bureau of Reclamation).

Drainage area - 170 square miles (includes that portion of drainage areas of Indian Creek 

and Trail Hollow above diversion dams).

Records available.- October 1945 to September 1949. January 1913 to September 1945 in 

files of salt Lake City district office, Geological Survey.

Remarks.- Reservoir is formed by a rock-faced, earth-fill dam with concrete core-wall in

see. 3, T. 4 S., R. 11 W. Uinta meridian, and Indian Creek dike, a rock-faced earth 

>fill 37 feet in height with concrete core-wall, completed Sept. 20, 1913. Storage 

began July 14, 1912. Capacity at spillway crest, 283,000 acre-feet (elevation, 

7,558.0 feet), gross contents. Dead storage below intake to tunnel, 13,000 acre-feet 

(elevation, 7,512.0 feet). Dead storage prior to Jan. 1, 1934, when outlet was 

lowered, approximately 28,000 acre-feet. Gage is read to half-tenths on first day of 

each month. Water diverted through Strawberry tunnel and used in vicinity of Spanish 

Fork in Great Basin. Water diverted to'reservoir from headwaters of Currant Creek 

through Currant Creek feeder canal since 1936. Small transmountain diversions from 

tributaries through Daniels Pass to Provo River Basin. Contents given herein represent 

usable storage.

Monthly elevation and contents, water year October 19"48 to Septemoer 1949

Date

Cal ndar year 1948...

Jan. .................

July .................

Aug

Water year 1946-49...

Elevablon 

(feeb)

-

-

Contents

(acre-feet)

-

-

Change in contents 

during month 

(acre-feet)

-16,400

+17,900

939921 O- 51 - 17
248 GREEN RIVER BASIN

Strawberry River near Soldier Springs, Utah

Location.- Water-stage recorder, lat. 40°08'15", long. 111°01'35", in NW^NW^ sec. 16, T. 4 

a., K. 10 W. Uinta meridian, half a mile downstream from Stinking Springs, 2-q- miles upstream from Willow Creek, and 3 miles south of Soldier Springs. Datum of gage is 7,369.3 

feet above mean sea level (levels by Bureau of Reclamation). Prior to Aug. 16, 1948,.at 

datum 0.2 foot lower.

Drainage area.- 42 square miles (exclusive of 170 square miles tributary to Strawberry Reservoir, which includes area above diversion dams on Indian Creek and Trail Hollow Creek).

Records available.- October 1942 to September 1949.

Extremes.- Maximum discharge during year, 356 second-feet Apr. 24 (gage height, 2.95 feet); 

minimum daily,- 11 second-feet on several days in December, January, and February.

1942-49: Maximum discharge, 453 second-feet Apr. 20, 1946; minimum recorded, 8.8 second-feet Jan. 30, 1947.

Remarks.- Records excellent. Water is diverted from Strawberry Reservoir, 7 miles upstream, 

to Great Basin (see preceding page). Water is seldom released from reservoir into Strawberry River.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

16 

16 

16 

17 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16 

16

Nov.

16 

16 

16 

16 

15

15 

15 

15 

15 

14

14 

14 

14 

14 

14

14 ' 

14 

14 

14 

14

14 

13 

14 

14 

14

13 

13 

13 

13 

13

Dec.

13 

13 

13 

14 

14

14

13 

13 

13 

13

13 

13 

12 

12 

12

12

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

11 

11

Jan.

12

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11 

11

Feb.

11

11 

11 

11 

11

11 

11 

11 

11 

11

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12

Month

Octo 

Hove 

Dece

Ca

Janu; 

Febn 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1945 

iry

ter year 1948-49 ...............

Mar.

12 

12 

13 

13 

13

14 

14 

14 

15 

15

15 

16 

16 

17 

17

18 

18 

19 

19 

20

19 

19 

20 

19 

19

19 

19 

19 

19 

19 19'

Apr.

18 

18 

19 

20 

21

24 

29 

38 

45 

51

56 

61 

77 

86 

90

94 

92 

90 

98

112

132 

181 

213 

222 

191

163

158 

146 

132 

114

Secondfoot-days

497 

427 

385

7,371

342 

326 

520 

2,791 

2,692 

1,723 

1,234 

991 

795

12,723

May

97 

94 

92 

100 

104

100 

104 

90 

83 

82

82 

86

84 

83 

83

83 

98 

109 

98 

92

104 

86 

79 

74 

73

72 

74 

74 

73 

70 

69

Maximum

17 

16 

14

106

12 

12 

20 

222 

109 80 ' 

46 

34 

28

222

June

70 

70 

67 

80 

79

73 

72 

67 

66 

62

62 

64 

59 

56 

55

55 

54 

53 

53 

50

48 

47 

46 

46 

45

46 

46 

45 

44 

43

July

42 

43 

45 

46 

45

46 

46 

44 

43 

43

42 

42 

41 

40 

40

39 

39 

39 

38

38

38 

37 

37 

37 

37

35 

35 

34 

34 

35 

34

Minimum

16 

13 

11

11

11 

11 

12 

18 

69 

43 

34 

27 

25

11

Aug.

34

33 

33 

33 

33

33

33 

33 

33 

34

33 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

31 

31 

29 

27 

28

Mean

16.0 

14.2 

12.4

20.1

11.0 

11.6 

16.8 

95.0 

86.8 

57.4 

39.8 

32.0 

26.5

34.9

Sept.

28 

28 

28 

28 

27

27 

27 

27 

27 

28

28 

27 

28 

27 

27

26 

26 

26 

26 

26

26 

25 

26 

26 

25

25 

25 

25 

25 

25

Runoff In 

acre-feet

986 

847 

764

14,610

678 

647 

1,030 

5,540 

5,340 

3,420 

2,450 

1,970 

1,580

25,250

Note.- No gage-height record Feb. 2-20; discharge interpolated.
GREEN RIVER BASIN 249 

Strawberry River at Duchesne, Utah

Location- Water-stage recorder, lat. 40°10', long. 110°25', in SW^NE^ sec. 2, T. 4 S., 

K. b W. Uinta meridian, at bridge three-quarters of a mile west of Duchesne and if miles 

upstream from mouth. Prior to Oct. 26, 1948, staff gage at datum 0.50 foot higher.

Drainage area.- 1,040 miles (includes area tributary to Strawberry Reservoir). 

Records available.- June 1908 to November 1910, March 1914 to September 1949. 

Average discharge.- 35 years (1914-49), 158 stcond-feet.

Extremes.- Maximum discharge during year, 1,050 second-feet May 19 (gage height, 4.09 

feet); minimum recorded, 20 second-feet Nov. 9.

1908-10, 1914-49: Maximum discharge observed, 3,230 second-feet May 27, 1922, 

from rating curve extended above 1,500 second-feet; minimum observed, 1 second-foot on 

several days in July 1931.

Remarks.- Records good except those for periods of ice effect and those prior to Oct. 26, 

which are fair. Gage read twice daily prior to Oct. 26. Diversions above station for 

irrigation. Water diverted from Strawberry Reservoir above station to Great Basin 

(see p. 247).

Revisions (water years).- W 1009: 1937-41(M).

Discharge, In second-feet, water year October 1948 LO September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39 

38 

38. 

40 

53

54 

54 

54 

52 

52

50 

50 

52 

53 

53

55 

55 

53 

54 

55

53 

53 

54 

54 

53

51 

51 

64 

69 

66 

65

Nov.

64 

64 

69 

69 

64

61 

66 

55 

42 

61

74 

68 

70 

68 

69

68 

69 

*53 

40 

61

77 

59 

75 

69 

61

51 

42 

46 

50 

62

Dec.

(*) 

(*)

> 56

Jan.

(*) 

50

Feb.

(*) 

> 48

^ 60

(*)

70

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Matr

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

. 90 

(*)

> 110

*120 

140 

150 

166 

175

162 

*154 

141 

132 

125

123 

119 

125 

123 

118 

116

Apr.

112 

107 

109 

116 

f!37

T154 

fl86 

f!99 

f215 

f222

f224 

f242 

270 

283 

278

283

f315 

f351 

f373 

f393

f410 

423 

520 

643 

719

765 

719 

746 

821 

870

Seeondfoot-days

1,637 

1,847 

1,736

31,625

1,550 

1,580 

3,639 

11,205 

23,649 

10,974 

4,992 

2,688 

2, ,169

67,666

May

798 

705 

737 

826 

821

742 

674 

626 

576 

618

669 

793 

807 

798 

836

845 

845 

951 

1,020 

951

909 

831 

765 

724 

 710

714 

714 

705 

687 

648 

605

Maximum

69 

77

428

175 

870 

1,020 

576 

275 

145 

90

1,020

June

576 

539 

508 

531 

543

531 

496 

474 

441 

413

406 

399 

399 

383 

357

341 

323 

315 

312 

303

283 

265 

257 

252 

242

229 

232 

217 

208 

199

July

190 

181 

222 

275 

232

208 

203 

194 

192 

206

192 

186 

181 

168 

156

145 

147 

147 

158 

143

134 

128 

126 

125 

121

116 

111 

109 

104 

99 

93

Minimum

38 

40

20

107 

576 

199 

93 

66 

66

38

Aug.

91 

90 

88 

84 

99

90 

90 

91 

101 

145

116 

106 

99 

96 

88

84 

81 

80 

80 

75

69 

66 

73 

81 

78

78 

78 

74 

70 

77 

70

Mean

52.8 

61.6 

56

86.4

50 

56.4 

117 

374 

763 

366 

161 

86.7 

72.3

185

Sept.

d70 

d70 

d70 

70 

69

69 

69 

69 

71 

84

80

74 

74 

80 

77

74 

71 

69 

71 

71

68 

69 

69 

68 

66

69 

68 

68 

82

90

Runoff In 

acre-feet

3,250 

3,660 

3,440

62,730

3,070 

3,130 

7,220 

22,220 

46,910 

21,770 

9,900 

5,330 

4,300

134,200

Peak discharge (base, 700 sec.-ft.).- Apr. 30 (2 p.m.) 894 sec.-ft.; May 19 (2 a.m.) 1,05O sec.- 

ft.

* Winter discharge measurement made on this day.

d Doubtful gage-height record; discharge Interpolated.

f Discharge computed from partly estimated gage heights.

Note.- Stage-discharge relation affected by Ice Dec. 1 to Mar. 18.
250 GREEN RIVER BASIN

Currant Creek below Red Ledge Hollow, near Fruitland, Utah

Location. - Water-stage recorder, lat. 40°20', long. 111°03', in NWir sec. 8, T. 2 S., R. 

10 W. Hint a meridian, 600 feet downstream from Red Ledge Hollow and 13-J miles northwest 

of Fruitland.

Drainage area.- 48 square miles.

Records available.- October 1945 to September 1949.

Extremes.- Maximum discharge during year, 307 second-feet Apr. 27 (gagsheight, 3.23 feet); 

minimum, 3.9 second-feet Oct. 3.

1945-49: Maximum discharge, 326 second-feet May 3, 1947; minimum, 2.5 second-feet 

Sept. 7, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Currant Creek feeder canal, constructed by Bureau of Reclamation in 

1936, diverts water from headwaters to Strawberry Reservoir, from which it is diverted 

through Strawberry tunnel to Great Basin for irrigation in Strawberry Valley project.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.3 

4.0 

3.9 

4.0 

5.7

5.0 

4.8 

4.5 

4.5 

4.5

4.5 

5.0 

5.0 

5.0 

6.2

5.5 

5.3 

5.3 

5.0 

5.0

4.8 

4.8 

4.8 

4.8 

4.8

4.8 

5.3 

6.7 

6.5 

6.5 

7.4

Nov.

7.7 

9.1 

8.7 

.4 

.4

.4 

.4 

.0 

.2 

.6

.6 

.6 

.6 

.6 

.6

.0 

.0 

b6.8 

6.2 

6.2

6.0 

6.0 

6.0 

6.0 

5.7

6.0 

b6.2 

b6. 3 

b6.5 

b6.5

Dec.

' b6.5

> 6.3

Jan.

}.,

' 6.0

Feb.

> 6.0 

> 7.0

> 7.5

Month

Octo 

Nove

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ber. ....................................

mber. ........... .......................

lendar year 1948

h.. .....................................

1. ......................................

St. .....................................

ember. .......................... .......

ter yearl948-49 ...............

Mar.

> 7.5

. 8.5 

 10

Apr.

10 

10 

11 

14 

15

16

17 

19 

24 

28

32 

40 

50 

44 

45

58 

71 

90 

91

87

79 

115 

176 

19(5 

192

185 

218 

211 

218 

169

Secondfoot-days

158.2 

209.3 

198.1

6,636.5

187.5 

197.5 

270.0 

2,531 

5,081 

1,697 

488.9 

192.8 

193.3

11,404.6

May

160

211 

223 

185 

146

132 

132 

132 

163

187

218 

220 

20fc 

206

189

171 

201 

208 

173 

171

152 

140 

138 

142 

140

138 

128 

126 

124 

113 

106

Maximum

7.4 

9.1

164

218 

223 

106 

30 

9.1 

14

223

June

106 

93 

83 

97 

88

87 

83 

77 

71 

65

64 

64 

61 

56 

52

49 

48 

48 5'3 

44

38 

36 

34 

32 

30

30 

29 

28 

26 

25

July

24 

24 

28 

30 

26

25 

23 

21 

21

20

18 

17 

16 

16 

14

14 

13 

13 

14 

11

11 

11 

10 

9.8 

9.8

9.4 

8.7 

8.4 

7.7 

7.7 

7.4

Minimum

3.9 

5.7

2.8

10 

106 

25 

7.4 

4.5 

4.5

3.9

Aug.

8.7 

8.4 

8.1 

8.4 

7.4

6.7 

6.7 

7.4 

9.1 

8.1

7.0 

6.5 

6.2 

6.0 

6.0

5.5 

5.5 

5.3 

5.3 

5.0

5.0 

4.8 

5.3 

6.5 

5.7

4.3 

4.8 

4.8 

4.5 

4.5 

4.8

Mean

5.10 

6.98 

6.39

18.1

6.05 

7.05 

8.71 

84.4 

164 

56.5 

15.8 

6.22 

6.44

31.2

Sept.

4.8 

4.8 

4.8 

4.5 

4.5

4.5 

4.8 

5.5 

5.5 

6.2

6.7 

6.2 

6.5 

6.7 

6.5

6.2 

6.0 

6.2 

6.7 

6.7

6.7 

6.7 

6.7 

7.0 

7.0

6.5 

6.2 

9.1

14 

9.1

Runoff in 

acre-feet

314 

415

393

13,160

372 

392 

S3 6 

5,020 

10,080 

3,370 

970 

382 

383

22,630

Peak discharge (base. 150 sec.-ft.).- Apr. 27 (ll a.m.) 307 sec.-ft.; May 11 (2:20 p.m.) 275 see.- 

ft.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record, Nov. 7-15, Dec. 15 to Apr. 16 5 discharge computed on basis of 1 discharge measurement, weather records, and records for nearby stations.
GREEN RIVER BASIN 2i 

Currant Creek near Fruitland, Utah

Location.- Water-stage recorder, lat. 40°12', long. 110°54', in SE£ sec. 21, T. 3 S., R. 

9 W. Uinta meridian, 700 feet downstream from Deep Creek, 1,000 feet downstream from 

bridge on U. S. Highw&y 40, and 3} miles southwest of Fruitland.

Drainage are5.- 142 square miles.

Records available.- January 1935 to September 1949.

Average discharge.- 14 years, 45.9 second-feet.

Extremes.- Maximum discharge during year, 378 second-feet May 4; minimum recorded, 11 

second-feet Nov. 22.

1935-49: Maximum discharge, 1,040 second-feet July 26, 1941 (gage height, 5.85 

feet), from rating curve extended above 425 second-feet, site and datum then in use; 

minimum recorded, 4 second-feet Mar. 12, 1941, but may have been less during periods 

of ice effect.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Currant Creek feeder canal, constructed by Bureau of Reclamation in 

1936, diverts from headwaters of Currant Creek to Strawberry Reservoir, from which 

it is diverted through Strawberry tunnel to Great Basin for irrigation in Strawberry 

Valley project.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

17 

17 

17 

17 

18

20

18 

17 

17 

17

17 

17 

17 

17 

18

18 

18 

19 

18 

18

19 

19 

18 

18 

19

19 

19 

24 

25 

24 

24

Nov.

24

26 

27 

26 

22

21 

23 

20 

19 

22

22 

22 

23 

23 

23

23 

24 

19 

19 

22

21 

19 

21 

21 

18

19 

17 

17 

19 

18

Dec.

19 

17 

19 

18 

19

20 

19 

20 

19

23

23 

23 

23 

22 

19

b!9 

b!9 

b!9 

b20 

b20

b21 

b20 

b20 

19 

18

17 

18 

19 

20 

19 

19

Jan.

}.,.

18

> 17

Feb.

I"

20

)"

*25 

25 

24 

23 

25

23 

23 

25

Month

Ooto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1943

ter year 1948-49 .......................

Mar.

24 

25 

24 

24 

24

24 

24 

24 

25 

25

23 

24 

25 

25 

29

30 

31 

31 

33 

36

37 

37 

35 

33 

31

31 

31 

32 

32 

30 

31

Apr.

34 

37 

39 

40 

40

43 

47 

53 

62 

70

80 

84 

83 

77 

71

89 

111 

127 

137 

142

129 

137 

189 

233 

262

231 

238 

294 

291 

291

Secondfoot-days

580 

640 

610

12,779.6

547 

593 

890 

3,761 

6,739 

3,075 

1,278 

892 

774

20,379

May

211 

226 

303 

294 

216

184 

180 

176 

182 

221

265 

276 

257 

254 

260

236 

251 

303 

282 

238

216 

195 

180 

178 

176

176 

170 

166 

162 

157 

148

Maximum

aa

27

23

221

37 

294 

303 

149 

76 

35 

32

303

June

146 

144 

137 

149 

148

146 

136 

'132 

121 

116

114 

Ii3 

109 

105 

98

97 

94 

90 

97 

90

84 

79 

76 

73 

68

64 

66 

62 

59 

62

July

73 

71 

76 

73 

62

59 

52 

48 

47 

46

42 

40 

39 

37 

35

33 

32 

31 

30 

33

30 

30 

30 

29 

39

29 

28 

28 

28 

28 

30

Minimum

17 

17 

17

9.3

23 

34 

148 

59 

28 

25 

23

-

Aug.

31 

33 

32

33 

32

32 

32 

32 

35 

34

31 

29 

29 

28 

27

26 

26 

26 

26 

25

25 

25 

25 

26 

28

27 

25 

26 

29 

29 

28

Mean

18.7 

21.3 

19.7

34.9

17.6 

21.2 

28.7 

125 

217 

102 

41.2 

28.8 

25.8

55.8

Sept.

27 

27 

27 

27 

25

24

23 

23 

25 

27

25 

25 

26 

27 

26

25 

25 

25 

25 

25

25 

25 

25 

25 

25

25 

25 

26 

32 

32

Runoff In 

acre-feet

1,150 

1,270 

1,210

25,340

1,080 

1,180 

1,770 

7,460 

13,370 

6,100 

2,530 

1,770 

1,540

40,430

Peak discharge (base. 200 aee.-ft.i.,- May 4 (3:30 a.m.) 378 sec.-ft.j May 19 (3 a.m.) 337 sec.-ft.

" "Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Oct. 1 to 10, Dec. 24 to Feb. 22, Feb 24, 26, 27, Mar. 1 to 14, Mar. 

31 to Apr. 12, July 19 to 31, Aug. 16 to 28; discharge computed on basis of 1 discharge measurement, 

veather records, and records for nearby stations.
252 GREEN RIVER BASIN

Water Hollow near Frulfland, Utah

Location.- Water-stage recorder, lat. 40°14', long. 110°59', between sees. 2 and 11, T. 

a a., H. 10 W. Ulnta meridian, Ij miles upstream from mouth snd Ty miles northwest of 

Fruitland.

Drainage area.- 15 square miles.

Records available.- April 1946 to September 1949.

Extremes.- Maximum discharge during year, 24.5 second-feet May 17 (gage height, 1.66 

feet); minimum recorded, 2.6 second-feet Oct. 4.

1946-49: Maximum discharge, that of May 17; minimum recorded, that of Oct. 4.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

3.3 

3.3 

3.7 

3.3 

3.7

3.3 

3.3 

3.3 

3.7 

3.7

3.7 

3.5 

3.5 

3.5 

3.9

3.7

3.7 

3.7 

3.7 

3.7

3.5 

3.5

3.5 

3.5 

3.5

3.5 

3.7 

4.3 

3.9 

3.7 

3.7

Nov.

3.7 

4.1 

3.9 

3.9 

b3.9

b3.8 

b3.8 

b3.7 

b3.7 

b3.8

b3.9 

3.9 

3.8 

3.7 

3.7

 3.7

3.7

> 3.7

Dec.

> 3.6

Jan.

' 3.5

Feb.

' 3.5

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

, 4.0 

> 4.5

> 5.0

Apr.

1"

5.4 

5.8 

6.0 

6.3 

6.6

7.0 

7.6 

8.6 

8.2 

8.0

8.0 

8.1 

8.2 

8.3 

8.3

8.0 

8.3 

8.3 

8.3 

8.6

8.9 

9.2 

9.2 

9.7 

9.7

Secondfoot-days

111.5 

112.8 

111.6

1,630.1

108.5 

98.0 

140.0 

223.6 

522.4 

449 

313.7 

239.4 

191.2

2,621.7

May

9.7 

9.7 

10 

13 

12

13 

13 

12 

12 

12

13 

15

17 

18 

20

20 

23 

23 

22 

22

20 

19 

19 

19 

19

19 

20 

19 

19 

20 

20

Maximum

4.3

4.1

10

9.7 

23 

19 

12 

8.6 

7.0

23

June

19 

19

18 

19 

18

17 

16 

16 

16 

15

15 

15 

14 

15 

15

15 

15 

15

15 

14

14 

13 

13 

13 

13

13 

13 

12 

12 

12

July

12 

12 

12 

12 

12

12

11 

11 

11 

11

11 

11 

11 

10 

10

9.7 

9.7 

9.7 

9.7 

9.2

9.2 

9.2

8.9 

8.9 

8.9

8.6 

8.6 

8.6 

8.6 

8.6 

8.6

Minimum

3.3

-

9.7 

12 

8.6 

7.0

5.7

-

Aug.

8.6 

8.6 

8.3 

8.3 

8.3

8.3 

8.3 

8.6 

8.6 

8.3

8.3 

8.0 

8.0 

8.0 

7.6

7.6 

7.3 

7.3 

.3 

.0

.0 

.0 

.3 

.6 

.3

7.3 

7.3 

7.0 

7.0 

7.0 

7.0

Mean

3.60 

3.76 

3.6

4.45

3.5 

3.5 

4.52 

7.45 

16.8 

15.0 

10.1 

7.72 

6.37

7.18

Sept.

7.0 

7.0 

7.0 

7.0 

6.7

6.7 

6.4 

6.4 

6.4 

7.0

6.7 

6.4 

7.0 

6.7 

6.4

6.4 

6.4 

6.4 

6.1 

6.1

6.1 

5.9 

5.9 

5.9 

5.9

5.9 

5.9 

5.9 

5.9 

5.7

Runoff in 

acre-feet

221 

224 

221

3,230

215 

194 

278 

444 

1,040 

891 

622 

475 

379

5,200

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 12-15, Nov. 18 to Apr. 18; discharge computed on basis of 1 discharge measurement, weather records, and records for Currant Creek stations.
GREEN RIVER BASIN 253

Lake Fork above Moon Lake, near Mountain Home, Utah

Location.- Water-stage rerorder, lat. 40°36', long. 110°31', in NW^ sec. 1, T. 2 N., R. 

b W. Uinta meridian, 2,000 feet upstream from head of Moon Lake at maximum stage, 

2 miles upstream from Brown Duck Creek, and 16 miles northeast of Mountain Home.

Drainage area.- 78 square miles.

Records available.- July 1942 to September 1949. April 1933 to September 1934 at site 

'u\ miles upstream, published as West Fork of Lake Fork above Moon Lake, near Mountain 

Home.

Extremes.- Maximum discharge during year, 1,820 second-feet June 16 (gage height, 3.85 

feet); minimum not determined, occurred during period of no gage-height record.

1933-34, 1942-49: Maximum discharge, 2,700'second-feet June 26, 1944 (gage height, 

4.27 feet), from rating curve extended above 700 second-feet; minimum daily recorded, 

13 second-feet Apr. 14, 1933.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnicn are fair.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

SO

21 

22 

23 

34 

35

26 

37 

38 

39 

30 

31

Oct.

34 

34 

33 

33

37

34 

34 

35 

35 

34

33 

32 

32 

32 

35

34 

31 

32 

32 

31

31

30 

30 

30 

30

30 

30 

31 

32 

32 

31

Nov.

31

31 

32

30 

30

31 

32 

*31 

30 

30

30 

30 

30 

31

30

30 

29

29 

29

30

[-

Dec.

> 27

Jan.

> 25

Feb.

' 23

Month

Goto 

Nove

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

1.. .....................................

ter vear 1948-49 ...............

Mar.

> 23

Apr.

23 

23 

24 

25 

26

28 

30 

32 

33 

32

32

37 

39 

38 

37

39 

44 

48 

48 

48

52

60 

70 

90 

112

108 

105 

124 

134 

128

May

115 

126 

173 

182 

155

134 

117 

113 

132 

185

231 

219 

225

276 

283

252 

234 

234 

222 

214

197 

200 

197 

237 

334

445 

466 

493 

533 

569 

515

Second- MO»I , .. . , Maximum foot -days

1,004 37 

901 32 

837

27,820 761

775 

644 

713 

1,669 134 

8,008 569 

21,625 1,710 

6,418 424 

2,619 160 

1,354 54

46.567 1.710

June

445

363 

310 

287 

263

263 

266 

325 

460 

588

843

1,300 

1,400 

,170

,O40

,220 

,300 

,070 

,710 

,090

978 

835 

719 

588 

575

569 

488 

424 

381 

355

July

242 

346 

377 

424 

359

310 

280 

252 

259 

259

228 

228 

231 

208 

192

187

182 

178 

178 

157

142 

134 

132 

128 

124

119 

102 

94 

92 

88 

86

Minimum

30

-

23 

113 

263 

86 

51 

39

23

Aug.

85 

85 

85 

85

86

79 

79 

131 

131

160

127 

115 

104 

96 

94

90 

86 

85

77 

72

39 

67 

71 

74 

64

58 

55 

54 

53 

51 

51

Mean

32.4 

30.0

27

76.0

25 

23 

23 

55.6 

258 

721 

207 

84.5 

45.1

128

Sept.

54 

51 

50 

48 

47

46 

45 

45 

47 

50

53 

47 

47 

48 

46

45 

43 

42 

41 

41

40 

40 

40 

40

40

40 

39 

42 

51 

46

Hunoff In 

acre-feet

1,990 

1,790 

1,660

55,180

1,540 

1,280 

1,410 

3,310 

15,880 

42,890 

12,730 

5,190 

2,690

92.360

Peak discharge (base, 1,000 sec.-ft.).- June 16 (8:30 p.m.) 1,820 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 5, 6, 8, 9, 12, 18. No gage-height record 

Nov. 19 to Apr. 24; discharge computed on basis of 1 discharge measurement, weather records, and records for nearby streams.
GREEH RIVER BASIN

Moon Lake Reservoir near Mountain Home, Utah

Location.- Mercury indicating gage, lat. 40°33'40", long. 110°29'30", in NE^ sec. 1 

a N., R. 5 W. Uinta meridian, at dam on Lake Fork, ij miles downstream from Brou

19, T. 

Dim Duck

Creek, 11 miles upstream from Yellowstone Creek, and I2j miles northwest of Mountain 

Home. Datum of gage is at mean sea level (levels by Bureau of Reclamation).

Drainage area.- 108 square miles.

Records available.- December 1937 to September 1949.

Extremes.- Maximum contents observed during year, 35,800 acre-feet on several days in 

June and July (elevation, 8,137.00 feet); minimum observed, 1,140 acre-feet Oct. 8.

1938-49: Maximum contents observed, 36,070 acre-feet June 25, 1944 (elevation, 

8,137.35 feet); minimum observed, 226 acre-feet Sept. 30, 1946, but may have been less 

during October 1946 when gage was not read.

Remarks.- Reservoir formed by earth-fill, rock-faced dam with concrete core; storage began 

Dec"." 9, 1937. Capacity, 35,800 acre-feet between elevations 8,072.00 feet (crest of 

original outlet of lake about 2,000 feet upstream from dam) and 8,137.00 feet (top of 

spillway gates). Elevation of spillway crest, 8,121.00 feet and elevation of sill of 

outlet works, 8,064.16 feet. Dead storage between sill of outlet and crest of original 

outlet of lake, 2,050 acre-feet. Dead storage below sill of outlet, 11,690 acre-feet, 

lutal dead storage, 13,740 acre-feet. Figures given herein represent usable contents. 

Water is used for irrigation on lanis under Moon Lake Water Users' Association and 

Uintah Indian Irrigation projects. Gage usually read between 7 and 10 a.m.

Cooperation. - Gage-height record furnished "by Moon Lake Water Users' Association.

Contents, in acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,180

1,160

1,170

1,170

1,180

1,180

1,160

1,140

1,160

1,200

1,220

1,240

1,260

1,280

1,380

1,450

1,520

1,610

1,670

1,760

_

_

1,960

2,030

2,100

2,180

2,220

-

2,130

2,100

2,040

Nov.

2,000

_

_

-

_

_

_

-

_

_

_

_

-

_

_

_

-

-

_

_

_

_

-

_

_

-

_

3,700

Dec.

_

_

_

_

-

_

_

_

-

_

_

_

4,820

_

_

_

_

-

5,200

_

_

_

-

_

_

_

_

5,760

Jan.

_

5,960

6,000

_

_

_

-

.

_

_

-

_

.

^

.

-

.

^

_

_

-

.

_

_

_

a7,480

Feb.

7,540

_

_

-

_

_

_

-

_

_

_

-

_

^

.

-

.

_

^

-

_

8,900

_

_

-

Mar.

_

_

_

-

_

_

_

-

_

_

_

-

_

_

_

-

_

_

_

_

-

10,180

10,280

_

alO.400

Apr.

_

_

_

10,640

10,740

10,770

10,800

.

10,640

10,980

10,900

10,820

_

-

_

10,380

10,330

10,180

10,070

9,940

_

9,790

9,740

9,660

9,600

9,580

a9,530

-

May

9,480

9,460

9,500

9,330

9,080

8,730

8,360

-

7,470

7,190

7,000

6,860

6,700

6,640

6,740

6,910

7,020

7,240

7,500

7,680

7,810

7,920

8,050

8,180

8,460

9,200

10,220

11,060

_

13,130

14,280

June

15,110

15,780

16,280

16,630

17,020

17,350

17,830

18,440

19,060

19,900"

21,150

26,520

28,500

30,530

32,200

33,930

35,570

35,800

35,800

35,800

35,800

35,800

35,800

35,800

35,800

35,800

35,800

35,800

35,800

-

July

35,800

35,800

35,800

35,800

35,800

35,800

35,800

35,800

35,800

-

_

_

_

_

-

.

_

_

33,850

33,810

33,780

32,380

31,790

31,340

30,900

30,280

29,950

29,400

28,860

28,360

Aug.

27,760

27,150

26,590

26,100

25,550

25,010

24,460

23,860

23,450

23,050

22,850

22,520

22,260

21,930

21,640

21,280

20,860

20,440

20,060

19,620

19,220

18,780

18,380

17,950

17,590

17,170

16,750

16,390

16,040

15,690

15,230

Sept.

14,960

_

14,190

13,970

13,630

13,350

13,080

12,740

12,390

12,040

11,720

11,510

11,480

11,430

11,430

11,400

11,350

11,220

11,140

11,090

11,000

10,960

10,880

10,800

10,700

10,560

10,460

10,280

10,040

9,790

-

a No gage-height record; conte Interpolated.

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31. ................

Calendar year 1948....

Sept. 30. ................

Water year 1948-49....

Elevation 

(feet)

8,088.30

-

8,096.70

-

Contents 

(acre-feet)

1,180

2,040

3,700

5,760

-

a7,480

8,900

alO,400

14,280

35,800

15,230

9,790

-

Change In contents 

during month 

(acre-feet)

_

+860

+1,660

+2,060

-2,600

+1,720

+1,420

+1,500

-870

+4,750

+21,520

-7,440

-13,130

-5,440

+8,610

a No gage-height record; contents Interpolated.
GREEN RIVER BASIN 2b5

Location.- Water-stage recorder, lat. 40°33'30", long. 110°29'30", in Ey s°c. 19, T. 2 N.

Hint a meridian, 2,000 feet downstream from Moon Lake Dam, 2 miles downstream

from Brown Duck: Creek, and 1C miles northwest uf Mountain Home.

Records available.- April 1942 t: September 1949. September 1921 to September 1934 (frag

mentary) at dam site 2,000 feet upstream, published as West Forte of Lake Fork near

Extremes.- Maximum discharge during year, 2,180 second-feet June 19 (gage height, 4.83 

reet J , from rating curve extended above 860 second-feet; no flow Oct. 15-26, Nov. 2 to 

Apr. 5 (gates closed).

1921-34, 1942-49: Maximum discharge recorded, that of June 19, 1949; no flow at 

times when reservoir gates are closed.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

46 

44

33

1-

ao

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

35

> 63°

60

Nov.

30 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Mare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194E

ter year 1948-49 .......................

Mar. Apr.

0 

0 

0 

0 

0

15 

9.0 

6.4 

14

£0

20 

30 

60 

90 

111

118 

118 

118 

118 

131

147 

166 

181 

181 

181

181 

187 

192 

192 

192

Secondfoot-days

798.0 

30 

0

34,439

0 

0 

0 

2,778.4 

7,743 

12,701 

10,649 

10,093 

4,436

49,228.4

Note.- No e;age-helght record Oct. 1-14, Oct. 27 to Nov

May

189 

189 

260 

378 

361

365 

378 

369 

369 

365

361 

361 

353 

353 

318

286 

256 

194 

194

197

197 

197 

20C 

200 

159

105 

111 

118 

120 

120 

120

Maximum

30 

0

398

0 

0 

0 

192 

378 

2,000 

529 

386 

234

2,000

June

122 

157 

169 

169 

147

95 

95 

99 

114

126

129 

133 

107 

171 

179

179 

293 

850 

2 , 000 

1,100

904

840

772 

607 

602

663 

S40 

446 

451 

442

July

382 

338

529 

433

370 

342 

3 27 

315 

304

297 

286 

282 

279 

275

275 

272 

272 

285 

290

354 

386 

386 

382 

378

374 

370 

370 

366 

366 

382

Minimum

0 

0 

0

0

0 

0 

0 

0 

105 

95 

272 

254 

70

0

Aug.

366 

362 

354 

342 

366

386 

382 

374 

366 

342

323 

327 

304 

304 

315

331 

334 

334

331 

331

331 

315 

312 

308 

308

304 

286 

268 

268 

265 

254

Mean

25.7 

1.0 

0

94.1

0 

0 

0 

92.6 

250 

4S3 

344 

326 

148

135

Sept.

234 

234 

234

234 

215

205 

212 

218 

224 

224

179

116 

70 

70 

72

80 

109 

95 

89 

89

89 

89 

89 

89 

97

118 

123 

166 

187 

187

Runoff In 

acre-feet

1,580 

60 

0

68,300

0 

0 

0 

5,510 

15,360 

25,190 

21,120 

20,020 

8,800

97,640

. 1, Apr. 6-8; discharge computed on basis

of 1 discharge measurement and records of gate changes at Moon Lake Dam.
GREEN RIVER BASIN

Lake Fork near Upaloo, Utah

Location.- Water-stage recorder, lat. 40°15'30", long. 110°]3'00", in NEiNE^- see. 4, T. 

3 S., H. 3 W. Uinta meridian, a quarter of a .-nile upstream from bridge on State Highway 86, ij- miles south of Upalco, 9 miles northwest) of Myton, and 10 miles upstream 

from mouth.

Drainage area.- 418 square miles.

Records available.- October 1942 to September 1949.

foot Apr. 16, May 22, 1943, May 6-10, 1949.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

whica are poor. Many diversions above and below station for irrigation. Flow partly 

regulated by Moon Lake Reservoir.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.6 

.6 

.6 

1.2

.8 

.7 

.6 

.7 

.8

.6 

.6 

.6 

.8 

.8

.6 

.6 

.6 

.6 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.8 

.7 

.5 

.5

Nov.

0.5 

.5 

.5 

.5 

.4

.5 

.5 

*.5 

.5 

.8

1.2 

1.2 

.7 

3.8 

12

)"

 37

Dec.

I '" 

} "

} *

1 (*) 

48

Jan.

> 45 

( )

Feb.

( ) 

50

55 

60

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

> 80

88 

96 

*105 

100

90 

80 

82 

84 

92

*103 

122 

128 

140 

164

156 

142 

116 

101 

97

95 

95 

90 

86 

86 

86

Apr.

82 

82 

90 

99 

114

122 

114 

120 

106 

94

88 

70 

75 

67 

57

55 

52 

55 

41 

31

15 

7.0 

5.8 

2.6 

9.9

15 

22 

16 

2.3 

1.7

Secondfoot-days

18.7 

514.1 

1,581

12,117.7

1,395 

1,530 

3,104 

1,711.3 

829.7 

20,639.6 

2,870.1 

112.6 

13.4

34,319.5

May

1.4 

1.1 

1.2 

.7 

.3

.2 

.2 

.1 

.1 

.1

7.7 

16 

1.1 

.7 

4.3

5.2 

115 

149 

87 

39

11 

7.5 

4.2 

2.6

17

45 

56 

46 

49 

89 

72

Maximum

1.2

184

164 

122 

149 

3,380 

612 

64 

.7

3,380

June

36 

2.7 

.9 

18 

41

113 

190 

213 

244 

254

440 

896 

920 

669 

560

655 

840 

1,200 

3,380 

2,240

1,460 

1,200 

al.OOO 

a820 

|a700

3650 

a620 

3520 

405 

352

July

285 

217 

225 

612 

534

290 

174 

107 

70

81

70 

44 

35 

27 

a21

alS 

a!2 

a8. 5 

a6.5 

a5.0

3.2 

7.1 

7.1 

2.8 

2.7

2.2 

1.8 

1.1 

.9 

.6 

.6

Minimum

0.4 

.4

.2

1.7 

.1 

.9 

.6 

.6 

.3

.1

Aug.

0.6 

.6 

.6 

.6 

.6

.6 

.6 

1.1 

18 

64

13 

.8 

.7 

.6

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

.6

Mean

0.60 

17.1 

51.0

33.1

45 

54.6 

100 

57.0 

26.8 

688 

92.6 

3.63 

.45

94.0

Sept.

0.6 

.5 

.5 

.5 

.5

.5 

.6 

.5 

.5 

.6

.5 

.5 

.5 

.4 

.4

.4

'.4 

.3 

.3

.3 

.3 

.3

.7 

.4

Runoff in 

acre-feet

37 

1,020 

3,140

24,040

2,770 

3,030 

6,160 

3,390 

1,650 

40,940 

5,690 

223 

27

68,080

Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of 1 discharge measurement and records for 

nearby streams.

Note.- Stage-discharge relation affected by ice Nov. 10 to Mar. 11 (no gage-height record for most 

of period); dlacharge computed on basis of 5 discharge measurements, weather records, and records 

for nearby streams.
GREEN RIVER BASIN 257

Brown Duck Creek near Mountain Home, Utah

Location.- Water-stage recorder and Parshall flume, lat. 40°34' , long. 110 0 31', in NE-J 

sec.T3, T. 2 N., R. 6 W. Uinta meridian, a quarter of a mile upstream from mouth, 

If miles northwest of Moon Lake Dam, and 12 miles northwest of Mountain Home.

Drainage area.- 15 square miles.

Records available.- April 1933 to September 1934, October 1942 to September 1949.

Extremes.- Maximum discharge during year not determined, occurred during period of no 

gage-height record in June; minimum recorded, 1.0 second-foot Oct. 28, 31, but may 

have been less during winter period of no gage-height record.

1933-34, 1942-49: Maximum discharge recorded, 86 second-feet Aug. 8, 194-3, but probably was greater during period of no gage -height record in June 1949; minimum recorded, 

0.9 second-foot Oct. 29, 1942.

Remarks.- Records good except those for periods of no gage-height record, which are poor, 

tflow regulated by Brown Duck Lake Reservoir (usable contents, 3,720 acre-feet). Sometime during period July 12-14, 1946, a diversion above station of about 0.7 second-foot 

was begun for power purposes.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.0 

2.0 

2.0 

2:1 

*2.4

2.2 

2.2 

2.1 

2.1 

2.0

2.0 

2.0 

2.0 

2.1 

2.2

' a. i

1.8 

1.8 

1.8 

1.8

1.8 

1.6 

1.6 

1.6 

1.6

1.6 

1.5 

1.4 

1.8 

1.6 

1.5

Nov.

2.0 

1.8 

1.8

(*) 

> 1.9

. 1.8

Dec.

1.7

Jan.

1

 1.6

Feb.

' 1.6

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948

ter year 1948-49 ...............

Mar.

1.6

Apr.

1.7 

1.8 

1.9 

2.0 

2.1

2.3

2.6 

3.0 

2.9 

3.0

3.7 

4.4 

4.4 

4.4 

4.0

4.5 

5.0 

6.0 

6.0 

6.2

7.0 

8.0 

9.5

10 

*10

10 

10 

12 

13 

12

Secondfoot-days

58.3 

55.9 

52.7

3,213.4

49.6 

44.8 

49.6 

173.4 

836 

1,244 

375.3 

865.2 

163.6

3,968.4

May

12 

14 

17 

18 

17

15 

15 

14 

15 

18

22 

25

28

33 

33

29 

28 

28 

25 

25

24 

24 

26 

28 

33

40 

43 

45 

47 

50 

45

Maximum

2.4 

2.0

49

13 

50 

80 

25 

48 

22

80

June

38 

f34 

30 

31 

28

f28 

30 

f34 

39 

f42

45 

50 

55 

52 

50

55

60 

70 

80 

60

50 

45 

40 

37 

35

30 

27 

25 

23 

21

July

21 

22 

25 

24 

23

20 

19 

18 

18 

18

16 

14 

11 

10 

9.4

9.2 

8.5 

8.5 

8.2 

7.4

6.9 

6.7 

6.5 

6.5

6.1

5.9

5.7 

5.5 

5.3 

5.1 

4.9

Minimum

1.4

-

1.7 

12 

21 

4.9 

4.7 

2.1

-

Aug.

4.9 

5.1

5.1 

5.1 

5.1

4.9 

4.7 

6.3 

16 

48

46 

45 

43 

42 

41

39 

39 

38 

38 

37

36 

36 

36 

36 

34

33 

31 

30 

28 

27 

25

Mean

1.88 

1.86 

1.7

8.78

1.6 

1.6 

1.6 

5.78 

27.0 

41.5 

12.1 

27.9 

5.45

10.9

Sept.

22 

20 

17 

13 

10

7.6 

5.9 

4.7 

4.5

4.4

4.2 

3.7 

3.7 

3.2 

3.0

2.8 

2.7 

2.6 

2.4 

2.4

2.1

2.1 

2.1 

2.1 

2.2

2.2 

2.2 

2.7 

3.3 

2.8

Runoff In 

acre-feet

116 

111 

105

6,370

98 

89 

98 

344 

1,660 

2,470 

744 

1,720 

324

7,880

* ¥inter discharge measurement made on this day.

f Fragmentary gage-height record; discharge computed on basis of partly estimated gage heights. 

Note.- No gage-height record Nov. 4 to Apr. 24, May 25 to June 1, June 11-26, July 12; discharge 

computed on basis of 2 discharge measurements, weather records, and records for nearby streams.
GREEN RIVER BASIN

Yellnwstone Creek near Altonah, Utah

at ion.- Water-stage recorder, lat. 40°31'00", long. 110°20'30", in SW^-NE^ sec. 4, T. 

1 N., R. 4 W. Uinta meridian, lj miles downstream from power plant of Moon Lake 

Electric Association, 2 miles downstream from Hell Canyon, 5 miles upstream from 

mcuth, and 8ij miles northwest cf Altonah.

Location.- Water-st 

1

El

Drainage area.- 131 square miles.

Records available.- Uctober 1944 to September 1949.

Extremes.- pernes.- Maximum discharge disch during year, 1,880 second-feet June 19 (gage height, 4.55 

feet); minimum recorded, 27 second-feet Nov. 14, but may have been less during perio 

jf icy effect.

1944-49: Maximum discharge, that of June 19, 1949; minimum recorded, that of 

N-IV. 14, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Some diurnal fluctuation caused by power plant Ij miles upstream.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

F4 

64 

63 

66 

72

70 

69 

69 

68 

67

67 

64 

66

70

68

66

64 

62

ei

61 

61 

59

60

59 

*60 

68 

64

67

62

Nov.

66 

68 

66 

62 

68

67 

63 

62 

60

63

60 

67 

63 

55 

63

57 

58 

58 

56 

59

60 

59 

59 

60 

61

62 

60 

59 

58 

*58

Dec.

56

Jan.

1 52

Feb.

> 50

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

. 50

*48 

50 

49 

52 

50

49 

51 

49 

50 

49

48 

48 

48 

47 

46

47 

47 

48 

46 

46 

46

Apr.

46 

45

47 

49

52 

56 

58 

57

56

59

68 

68 

66 

59

68 

71 

76 

75 

75

80 

90 

104 

125

135

125 

119 

137 

144 

139

Secondfoot-days

2,011 

1,837 

1,736

37,424

1,612 

1,400 

1,514 

2,395 

8,717 

21,510 

8,569 

4,272 

3,333

58,906

May

129 

135 

178 

194 

176

159

144 

139 

148 

186

234 

234 

234 

280 

309

305 

295

302 

266

253

234 

231 

228 

260 

345

462 

488 

521 

543 

590 

515

Maximum

72 

68

572

* 

52 

144 

590 

1,500 

596 

205 

146

1,500

June

457

412 

341 

329 

309

309 

305 

362 

451

602

841 

,140

,130 

,010 

988

,110 

,230 

,330 

1,500 

1,100

896 

814 

741 

639

614

614 

543 

504 

462 

427

July

403 

417 

457 

596 

527

422 

371 

325 

317 

333

298 

295 

309 

273 

253

247 

234 

222 

225 

210

194 

183 

183 

176 

173

166 

159 

155 

152 

150 

144

Minimum

59 

55

-

46 

45 

129 

305 

144 

108 

83

45

Aug.

144 

144 

148 

146 

155

155 

148 

183 

186 

205

169 

155 

144 

137 

135

133 

129 

127 

123 

119

117 

115 

125 

139 

125

117 

113 

110 

110 

108 

108

Mean

64.9 

61.2 

56

103

52 

50 

48.8 

79.8 

281 

717 

276 

138 

111

161

Sept.

113 

110 

119 

146 

144

139 

135 

129 

133 

137

135 

125 

121 

123 

113

106 

104 

103 

101 

96

92

86 

84 

83 

86

84 

86 

86 

110 

104

Runoff In 

acre-feet

3,990 

3,640 

3,440

74,230

3,200 

2,780 

3,000 

4,750 

17,290 

42,660 

17,000 

8,470 

6,610

116,800

Peak discharge (base, 700 sec.-ft.).- June 19 (1:30 a.m.J 1,880 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 8, 9, 18-20, 22, 23, Nov. 25 to Mar. 11 (no 

gage-height record for most of period); discharge computed on basis of 2 discharge measurements, 

weather records, and records for nearby streams.
GREEN RIVER BASIN 259

Location.- Water-stage recorder, lat. 40°38', long. 110°10', in NW^ sec. 30, T. 3 N. , R.

inta meridian, 2 miles upstream from Clover Creek and 15 miles northwest of

Drainage area.- 132 square miles.

Records available.- October 1945 t^ September 1949.

Extremes.- Maximum discharge during year, 2,300 second-feet June 18; minimum, 24 second1645-49: Maximum discharge, that of June 13, 1949; minimum recorded, 24 secondfeet Mar. 9, 1949.

Remarks.- Records excellent except those for periods of no gage-height record, which 

are good. Flow partly regulated by several small mountain lakes and reservoirs 

including Pox Lake, Crescent Lake, Atwood Lake, and Chain Lake; tjtal capacity, about 

3,600 acre-feet. Nc divers!jn above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

67 

64

6Z 

64 

68

62 

61 

62 

61 

61

56 

55 

54 

55 

58

58 

54 

56 

56 

55

54 

54 

54 

54 

54

52

54 

59 

59 

56 

55

Nov.

55 

55 

54 

49 

49

51 

49 

48 

50 

51

50 

50 

50 

49 

49

49 

48 

46 

45 

49

48 

48 

48 

48 

46

44 

42 

49 

49 

45

Dec.

45 

44 

44 

43 

44

45 

45 

a44 

a44 

a44

a44 

a43

43 

42 

41

42 

42 

41 

41

41

41 

41 

41 

40 

41

41 

41 

41 

41 

41 

41

Jan.

40 

39 

40 

41 

41

40 

40

40 

40 

40

40 

40 

40 

38 

41

39 

39 

40 

39 

39

39 

39 

39 

39 

39

38 

38 

37 

38 

38 

37

Feb.

37 

37 

37 

37 

37

37 

36 

36 

36 

36

36 

36 

a36 

a36 

a36

a35 

a35 

a35 

a34 

a34

a34 

a35 

35 

35 

34

33 

32 

34

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

33 

33 

34 

34 

34

34 

34 

34 

33 

35

35 

34 

33 

33 

35

36 

35 

35 

36 

36

34 

35 

35 

34 

33

33 

33 

33 

33 

33 

33

Apr.

33 

33 

34 

36 

37

40 

42 

43 

4Z 

43

48 

54 

54 

50 

46

5Z 

61

64 

61 

61

67 

78 

97 

118 

123

114 

114 

130 

140 

143

Secondfoot -days

1,794

1,463 

1,312

40,483

1,217 

991 

1,055 

2,058 

10,404 

22,281 

10,468 

5,959 

3,327

62,329

May

13Z 

145 

195 

201 

179

150

138 

130 

145 

Z01

253 

265 

287 

381 

421

390 

364 

360 

323 

307

280 

276 

Z95 

369 

498

603 

633 

628 

628 

658 

569

Maximum

68 

55 

45

759

41 

37 

36 

143 

658 

1,660 

678 

291 

150

1,660

June

480 

41E 

356 

327 

295

287 

295 

377 

51Z 

709

95Z 

,240 

,140 

,040 

,000

,100 

,190 

,450 

,660 

,070

872 

794 

736 

663

623

618 

574 

545 

507 

457

July

434 

452

526 

678 

633

536 

480 

417 

403 

417

377 

360 

364 

331 

311

299 

291 

280 

Z84 

265

Z43 

225 

221 

218 

208

201 

191 

185 

185

Z32 

Z21

Minimum.

52 

4Z 

40

37

37 

3Z 

33 

33 

130 

287 

185 

112 

82

3Z

/ ug.

214 

208 

208 

198 

E18

228 

214 

253 

284

291

246 

218 

211 

198 

191

179 

176 

179 

170 

164

167 

161 

173 

195 

188

158 

138 

116 

HE 

153 

150

Mean

57.9 

48.8

4Z.3

111

39.3 

35.4 

34.0 

68.6 

336 

743 

338 

192 

111

171

Sept.

150 

148 

145

140 

130

121 

116 

114 

116 

123

140 

123 

121 

121 

114

107 

103 

99 

97 

95

91 

89 

87 

85 

84

84 

82 

87 

114 

101

Runoff In 

acre-feet

3,560 

2,900 

2,600

80,290

2,410 

1,970 

Z.090 

4,080 

20,640 

44,190 

20,760 

11,820 

6,600

123,600

Peak discharge (base, 600 sec.-ft.).- May 29 ( 9 p.m.) 751 sec.-ft.; June 18 (11 p.m.) 2,300 sec.- 

ft.; July 4 (5 a.m.) 767 sec.-ft.

a No gage-height record; discharge computed on basis of records for Wolf Creek above Rhodes Canyon, 

near Hanna, and RocK Creek near Mt. Home.
260 GREEN RIVER BASIN

Uinta River near Neola, Utah

Location.- Water-stage recorder, lat. 40°32'10", long. 110°03'40", in SE^SWi; sec. 26, T.

 2 H., H. 2 W. Uinta meridian, 800 feet downstream from bridge, three-quarters of a 

mile upstream from Pole Creek, and 7 miles north of Neola.

Drainage area.'- 181 square miles.

Records available.- July 1921 to September 1927 (fragmentary), September 1929 to SeptemDer 1949.

Average discharge.- 21 years (1925-26, 1929-49), 173 second-feet.

Extremes.- Maximum discharge during year, 2,520 second-feet June 18 (gage height, 5.57

 fee t); minimum, 42 second-feet Feb. 28.

1929-49: Maximum discharge, 3,320 second-feet June 26, 1944 (gage height, 5.20 

feet), from rating curve extended above 1,600 second-feet; minimum discharge recorded, 

32 second-feet Mar. 10, 1941, but may have been less during period of ice effect.

Remarks,- Records good except those for periods of ice effect or no gage-height record,

 which are fair. Water diverted from Pole Creek and Uinta River and used at Uinta 

Power & Light Co.'s power plant, enters river about 1,000 feet above station. Uinta 

Power Canal diverts from river 6 miles above station. Enlargement of canal completed 

in August 1944. Flow through canal increased Oct. 12, 13, 1944, and held nearly constant thereafter. Power canal and Pole Creek diversion feed to common forebay. 

Water, not used through power plant, wastes through spillway of forebay at penstock 

intake and enters river a short distance above station. Prior to Nov. 18, 1948, spill 

entered river half a mile below station. Considerable spill occurs at times when one 

of two power units is not operating. Summer flow slightly regulated by several small 

mountain lakes and reservoirs.

Discharge, In second-feet-, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

79 

79 

74 

76 

85

81 

78 

79

78 

76

74 

73 

70 

70 

70

70 

68 

70 

68 

68

67 

68 

67 

64 

66

67 

68 

81 

74 

72 

69

Nov.

72

73 

70 

72 

69

67 

65 

67 

67 

66

64 

64 

64 

64 

62

61 

63 

66 

76 

71

71

70 

*72 

69 

68

68 

64 

b62 

b64 

b66

Dec.

b66 

66 

64 

68 

b65

b64

b64 

b64 

b66 

69

68 

68 

*68 

68 

b66

b64 

b64 

b62 

b63 

65

67 

66 

66 

b63 

b62

b64 

67 

68 

67 

b6 6 

b66

Jan.

67 

66 

66 

b64 

b60

b58 

b59 

b60 

b63 

b66

*69 

71 

71 

68

' b60

Feb.

> b59

*60 

52 

b54 

b56

58 

57 

b56 

b55 

b56

b57 

57 

*57 

57 

57

56 

56 

57 

56 

56

54 

54 

55

Month

Octo 

Nove 

Dece

Ca

Janu 

Febn 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ter year 1948-49 ...............

Peak discharge (base, 700 sec. -ft.).- May

sec. -ft.; June 18 (11:15 p.m.; 2,520 sec. -ft 

* Winter discharge measurement made on thli 

b Stage-discharge relation affected by Ice

Mar.

55 

55 

57 

57

57

57 

57 

57 

55 

58

58 

58 

56 

57 

60

62

62 

62 

63 

64

63 

64 

63 

60 

59

59 

59 

59 

59 

58 

58

Apr.

59 

59 

60 

63 

67

72 

78 

84 

78 

79

80 

89 

89 

85 

77

82 

90 

96 

97 

94

98 

106 

122 

142 

158

148 

142 

158 

171 

178

Secondfoot-days

2,249 

2,017 

2,034

47,840

1,928 

1,587 

1,828 

3,001 

13,162 

25,757 

12,301 

6,820 

4,417

77,101

May

167 

173 

223 

252 

234

199 

185 

176 

176 

223

305 

330 

334 

424 

519

490 

475 

466 

403 

382

353 

346 

346 

411 

577

783 

863 

870 

836 

877 

764

Maximum

85 

76 

69

886

60 

64 

178 

877 

1,820 

773 

305 

179

1,820

June

593 

504 

438 

407 

365

353 

346 

416 

587 

863

1,200 

1,500 

1,270 

1,140 

1,040

1,160 

1,330 

1,620 

1,820 

1,380

1,080 

957 

880 

773 

706

699 

643 

590 

562 

535

July

52S 

535 

590 

773 

732

631 

5S1 

493 

464 

483

440 

414 

414 

387 

362

350 

342 

327 

335 

315

290 

280 

273 

266 

260

247 

241 

235 

229 

260 

253

Aug.

250 

244 

247 

238 

250

253 

247 

270 

294 

305

266 

244 

238 

229 

220

212 

204 

204 

198 

193

191 

188 

193 

204 

191

183 

174 

167 

165 

179 

179

Minimum Mean

64 72.5 

61 67.2 

62 65.6

47 131

62.2 

52 56.7 

55 59.0 

59 100 

167 425 

346 859 

229 397 

165 220 

116 147

211

'9 (11:30 p.m.) 1.020 sec. -ft.; June 12 (3:30 

; July 4 (8 a.m.) 873 sec. -ft. 

! day.

Sept.

179 

176 

174 

169 

167

162 

160 

158 

158 

160

165 

160 

158 

158 

151

147 

141 

139 

139 

135

133 

131 

129 

127 

123

120 

116 

120 

131 

131

Runoff In 

acre-feet

4,460 

4,000 

4,030

94,880

3,820 

3,150 

3,630 

5,950 

26,110 

51,090 

24,400 

13,530 

8,760

152,900

a.m.) 1,660
GREEN RIVER BASIN 261 

Uinta River at Fort Duchesne, Utah

Location - Water-stage recorder, lat. 40°18', long. 109°51', in NW^ sec. 23, T. 23., R. 

1 E.CTinta meridian, a quarter of a mile downstream from bridge on U. S. Highway 40, 

half a mile north of Fort Duchesne, and 7 miles east of Roosevelt.

Drainage area.- 672 square miles.

Records available. - October 1942 to September 1949. September 1899 to December 1904, 

April to June 1906, and April 1907 to November 1910 (fragmentary) at site half a mile 

downstream. May 1917 to September 1920 (fragmentary) at site below small diversion 2 

miles downstream, published as Uinta River near Fort Duchesne.

Average discharge.- 12 years (1899-19C2, 1908-10, 1942-49), 156 second-feet.

Extremes.- Maximum discharge during year, about 3,400 second-feet June 19 (gage height, 

4.45 feet); minimum, 0.7 second-foot Oct. 1.

1899-1904, 1906-10, 1917-20, 1942-49: Maximum discharge, more than 7,500 secondfeet in June 1917; no flow at times.

Remarks.- Records good except those for period of ice effect, which are fair. Many 

diversions above station for irrigation.

Revisions(water years).- W 918: 1900, 1903, 1909, 1917, 1918.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

35

36 

37 

38 

29 

30 

31

Oct.

1.0 

2.1 

2.3 

?.8 

3.2

3.5

3.7 

4.2 

4.2 

4.5

4.8 

4.8 

4.8 

4.8 

4.8

3.2 

2.8 

4.8 

4.8 

5.6

4.2 

5.4 

5.6 

3.5 

2.5

1.9 

1.8 

2.6 

2.3 

2.5 

2.1

Nov.

2.1 

2.5 

3.2 

3.4 

3.5

4.8 

5.4 

4.8 

5.6 

14

*16 

19 

17 

18 

9.9

9.4 

9.4 

9.4 

8.1 

17

22 

22 

22 

37 

38

38 

33 

16 

32 

43

Dec.

48

, 60 

(*)

70

Jan.

(*) 

> 78

Feb.

(*)

> 80

84

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948

_

ter year 1948-49 .......................

Mar.

I"

) (*)

94 

110 

130

143 

*155 

158 

160 

163

168 

*169 

148 

139 

132

115 

91 

84 

82 

70

63 

61 

61 

61 

61 

59

Apr.

55 

53 

49 

49 

46

44 

41 

37 

37 

27

26 

36

34 

30 

21

19 

18 

12 

9.9 

7.2

4.8 

5.6 

4.2 

3.4 

4.5

5.6 

8.1 

7.7 

3.7 

4.5

Secondfoot-days

111.1 

485.5 

2,008

17,384.7

2,418 

2,272 

3,265 

703.2 

5,754.5 

24,998 

907.6 

93.9 

85.1

43,101.9

May

3.4 

3.7 

4.5 

6.5

21

18 

19 

12 

9.4 

9.0

14 

17 

12 

16 

50

52 

61 

165 

152 

104

70 

61 

50 

69 

123

350 

723 

864 

864 

978 

853

Maximum

5.6

43

693

169 

55 

978 

2,850 

214 

23 

5.4

2,850

June

518 

271 

145 

86 

77

74 

115 

165 

414 

800

1,310 

el, 460 

e2,110 

el, 810 

el, 460

el, 370 

el, 490 

e-1,650 

e2,850 

e2,480

el, 450 

908 

666 

421 

280

214 

202 

105 

64 

33

July

15 

28 

50 

140 

214

145 

91 

43 

19 

16

17 

14 

14 

12 

8.5

8.2 

9.4 

9.8 

6.8 

5.7

4.8 

5.0 

4.0 

4.2 

6.0

4.2 

3.2 

2.2 

1.9 

2.5 

3.2

Minimum

1.0 

2.1

.4

59 

3.4 

3.4 

33 

1.9 

1.0 

|1.3

1.0

Aug.

2.8 

2.4 

1.4 

1.4 

1.9

1.4 

1.0 

1.3 

23 

21

5.0 

2.4 

.8 

.4 

.4

.4

.4 

.6 

.0 

.4

.6

.4 

.0 

.3 

.2

.0 

.4 

.6 

.O 

.0 

.0

Mean

3.58 

16.2 

64.8

47.5

78.0 

81.1 

105 

23.4 

186 

833 

29.3 

3.03 

2.84

118

Sept.

1.3 

2.2 

3.0 

2.2 

1.9

2.0 

1.8 

1.8 

1.8 

2.0

1.9 

3.8 

2.4 

2.8 

3.2

3.2

2.5 

2.5 

2.8 

2.0

5.4 

3.5 

2.4 

2.2 

2.4

2.5

2.8 

3.2 

5.4 

8.2

Runoff In 

acre-feet

220 

963 

3,980

34,480

4,800 

4,510 

6,480 

1,390 

11,410 

49 , 580 

1,800 

186 

169

85,490

* Winter discharge measurement made on this day.

e Stage-discharge relation Indefinite; discharge computed on basis of estimated flow bypassing 

gage added to computed flow In channel for those days.

Note.- Stage-discharge relation affected by Ice Dec. 2 to Mar. 16 (no gage-height record part of 

period)j discharge, computed on basis of 6 discharge measurements, weather records, and records of 

other Uinta River stations.
262 GREEN RIVER BASIN

Whitero:ks River above Paradise Creek, near Whiterocks, Utah

Location.- Water-stage recorder, lat. 40°38 I , long. 109°58', in SW£ sec. 23, T. 3 N., R. 1 

RTUinta meridian, 2f miles upstream from Paradise Creek and 12 miles northwest of

Whiterocks.

Records available.- October 1945 to September 1949.

Extremes.- Maximum discharge daring year, 1,780 second-feet June 18 (gage height, 4.42 

1'eet); minimum not determined, occurred during period of no gage-height record.

1945-49: Maximum discharge, that of June 18, 1949; minimum not determined, probably 

occurred during period of no gage-height record.

Remarks - Records guud except those for periods of ice effect or no gage-height record, 

which are fair. No diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

40 

40 

39 

40

48

*43 

42 

41

40 

40

40 

39 

38 

38 

39

38

se

37

36 

36

35

33

32 

32

32 

32

34 

36 

33 

32

Nov.

33 

33 

33 

31 

35

33 

34

b33

33

33 

Z2

30 

30 

29

29

30 

b30 

b30

> 30

Dec.

> 28

1"

Jan.

' 25

Feb.

22

Month

Octo 

Move 

Dece

Ca

janu 

Febr 

Marc 

Aprl

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1943

ter year 1948-49 ...............

Mar.

> 22

Apr.

> 22

24 

26 

28 

27 

27

27 

£8 

29 

28 

27

29 

33 

36 

36 

34

35 

42 

54 

71 

76

66 

65 

76 

91 

87

Secondfoot-days

1,154 

934 

850

28,365

775 

616 

682 

1,212 

8,782 

17,782 

5,654 

3,398 

1,803

43,642

May

85 

104 

142 

150 

134

113

101 

96 

116 

142

171 

184 

£19 

317 

393

337 

310 

307 

247 

233

219 

203 

208 

259

402

540 

580 

609 

631 

676 

554

»*»

48 

35

849

91 

676 

1,240 

303 

182 

88

1,240

June

428 

375 

299 

275 

256

266 

310 

460 

684 

898

1,140 

1,240 

966/ 

861 

807

833 

879 

1,200 

1,050 

748

567 

502 

449 

407 

349

341 

333 

314 

279 

256

July

233 

227 

259 

303 

272

244 

224 

206 

206

233

203 

184 

193 

171 

158

154 

154 

144 

146 

136

138 

162 

158 

156 

152

148 

144 

140 

136 

134 

136

Minimum

32

-

85 

256 

134 

68 

48

-

Aug.

130 

130 

129 

127 

148

142 

138 

180 

182 

169

146 

136 

129 

121 

116

109 

104 

85 

79 

73

71 

68 

81 

93

87

76 

71 

70 

70 

70 

68

Mean

37.2 

31.1 

27.4

77.6

25 

22 

22 

40.4 

283 

593 

182 

110 

60.1

120

Sept.

70 

68 

67 

65 

63

62

61 

60 

60 

64

88 

72 

67 

66 

63

59 

57 

55 

54

52

52 

51

50

49 

50

51 

48 

52 

65 

62

Runoff in 

acre -feet

2,290 

1,850 

1,690

56,270

1,540 

1,220 

1,350 

2,400 

17,240 

35,270 

11,210 

6,740 

3,580

86,380

Peak discharge fbase, 500 gee.-ft.).- May 29 (9 p.m.) 824 sec.-ft.; June 18 (6 p.m.) 1,780 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 20 to Apr. 10; discharge computed on basis of weather records and 

ecords for nearby streams.
GREEN RIVER BASIN 263

Whiterocks River near Whlterocks, Utah

Location.- Water-stage recorder, lat. 40°34', long. 109°56', in SW^ sec. 18, T. 2 N., R. 1 

K. Uinta meridian, three-quarters of a mile upstream from heading of United States Whiterocks Canal and 65- miles north of Whiterocks.

Drainage area.- 115 square miles.

Records available.- August 1921 to September 1928. February 1930 to September 1949. September laay to August 1904 and April 1907 to November 1910 near present site. November 

1917 to June 1921 at site downstream from diversion of United States Whiterocks Canal and 

above that of Farm Creek Canal (records equivalent if flow of Whiterocks Canal is ineluded) .

Average discharge.- 25 years (1899-1903, 1908-10, 1930-49), 121 second-feet.

Extremes. - Maximum discharge during year, 1,880 second-feet June 18 (gage height, 4.70 feet; 

minimum recorded, 16 second-feet Mar. 30.

1921-28, 1930-49: Maximum discharge, 2,750 second-feet June 21, 1922, from rating 

curve extended above 1,700 second-feet; minimum determined, 10 serond-feet Dec. 5, 1933, 

but may have been less during periods of ice effect.

Remarks . - Records good except those for periods of ice effect, which are fair. 

regulated by small mountain lakes. One diversion above station.

Flow slightly

Discharge, In second-feet, Water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

51 

49 

45 

46 

56

51 

49 

49 

45 

42

42 

42 

41 

40 

43

42 

39 

40 

38 

38

37 

35 

33 

33 

33

33 

33 

38 

37 

34 

34

Nov.

*35 

36 

34 

30

31

36 

33 

31 

b33 

b34

35 

37 

35 

33 

33

33 

30 

b31 

b33 

b35

b37 

b39 

*b40 

33 

33

33 

b33 

b32 

b32 

b34

Dec.

b35 

37 

38 

37 

b34

b32 

b31 

b31 

b31 

b32

b32 

b32 

*31 

30 

29

b31 

b32 

b31 

b32 

b32

32 

31

31 

31 

b30

b29 

b28 

b29 

b30 

b29 

b28

Jan.

. b28 

(*)

Feb.

' b25

26 

26 

25 

26 

24

26 

26 

24

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

25 

24 

24 

25 

24

25 

*24 

23 

25 

25

24 

24 

25 

25 

25

26 

26 

26 

26 

27

26 

26 

25 

26 

25

25 

26 

25 

25 

24 

25

Apr.

25 

25 

25 

27 

29

33 

34 

37 

33 

33

35 

40 

40 

37 

33

37 

42 

45 

46 

44

44 

49 

63 

82 

89

79 

77 

89

106 

102

Secondfoot-days

1,268

1,014 

978

33,399

868 

703 

776 

1,480 

10,068 

18,537 

5,750 

3,852 

2,012

47,306

May

101 

118 

158 

175 

163

134 

120 

113 

130 

163

206 

223 

260 

354

415

358 

354 

376 

315 

286

260 

240 

246 

315 

446

599 

674 

674 

696 

756 

640

Maximum

56 

40 

38

799

26 

27 

106 

756 

1,390 

310 

178 

106

1,390

June

495 

425 

34O 

319 

290

298 

327 

467 

674 

911

1,210 

1,390 

1,040 

896 

804

820 

854 

1,200 

1,180 

756

549 

478 

457 

405 

562

362 

354 

327

290 

257

July

240 

236 

268 

310 

283

257 

233 

211 

211 

243

217 

191 

200 

170 

156

154 

151 

140 

144 

132

132 

158 

156 

154 

149

142 

142 

144 

142 

142 

142

Minimum

33 

30 

28

-

24

23 

25 

101

257 

132 

106 

47

23

Aug.

138 

134 

128 

122 

140

136 

128 

173 

178 

165

136 

126 

118

113 

111

118 

111 

106 

113 

109

108 

108 

118 

128 

124

115 

111 

109 

109 

111 

108

Mean

40.9 

33.8 

31.5

91.3

28 

25.1 

25.0 

49.3 

325 

618 

185 

124 

67.1

130

Sept.

106 

89 

89 

85 

82

79 

77 

77 

77 

85

101 

84 

63 

67 

63

58 

53 

52 

51 

51

50 

50

49 

49 

49

47 

49 

50 

65 

65

Hunoff In 

acre-feet

2,520 

2,010

1,940

66,250

1,720 

1,390 

1,540 

2,940 

19,970 

36,770 

11,400 

7,640 

3,990

93,850

Peak discharge (base, 60» see. -ft.).- May 29 (10:30 p.m.) 896 sec. -ft.; June 12 (12:15 a.m.) 1,660 

sec. -ft.; June 18 (7 p.m.) 1,880 sec. -ft .

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

939921 O - 51 - 18
264 GREEN RIVER BASIN

Paradise Creek near Whiterocks, Utah

Location - Water-stage recorder, lat. 40°37', long. 109°56', in NE£ see. 36, T. 3 N. , R. 

1 W.Uinta meridian, 1,000 feet upstream from mouth and 10 miles north of Whiterocks.

Drainage area.- About 10 square miles.

Records available.- April 1946 to September 1949.

Extremes.- Maximum discharge during year, 51 second-feet May 25 (gage height, 2.01 feet); 

minimum not determined, orobably occurred during period of ice effect.

1946-49: Maximum discharge, 112 second-feet May 16, 1948, maximum gage height, 

2.56 feet May 8, 1947; no flow Aug. 17-20, 1946.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Flow regulated by Paradise Park Reservoir, capacity, 3,100 acre-feet.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

2.2 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.8 

2.0

1.3 

1.3 

1.9

*1.3 

1.3 

1.3 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.0 

0.9 

.8 

.8 

.8

.8 

.8 

. 8 

.8 

.8 

.8

Nov.

0.8 

.8 

.8 

.8

 b.8

Dec.

bo. 8 

b.8

.8

Jan.

' 0.7

Feb.

. 0.6

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

1.... ...................................

ter year 1948-49 ...............

Mar.

> 0.6

Apr.

\ 0.6

I"

. 1.0

1.2 

1.3 

1.6 

1.6

1.6 

1.6 

2.0 

3.6 

3.5

Secondroot-days

37.7 

24.0 

24.8

3,505.9

21.7 

16.8 

18.6 

36.0 

643.1 

341.3 

140.6 

677.7 

278.8

2,261.1

May

3.5 

5.8 

14 

15 

13

8.8 

7.2 

6.6 

8.2 

17

22 

25 

26 

27 

26

24 

22 

20 

18 

16

15 

18 

25 

31 

36

37 

37 

34 

34 

28 

23

Maximum

3.8

79

3.6 

37 

20 

16 

44 

34

44

June

20 

18 

16 

16 

16

16 

16 

16 

16 

15

15 

16 

13 

12 

11

9.9 

9.2 

12 

11 

9.2

8.2 

7.6 

6.9 

6.2 

5.8

5.5 

5.0 

4.5 

4.3 

4.0

July

3.6 

3.5 

4.5 

3.6 

3.5

3.0 

3.0 

2.7 

3.0 

3.2

3.0 

2.8 

2.8 

2.7 

2.4

2.5 

2.7 

2.4 

2.7 

2.2

2.0 

2.0 

2.0 

2.0 

1.8

1.7 

6.3 

15 

16 

16 

16

Minimum

0.8

-

3.5 

4.0 

1.7 

1.3 

2.0

-

Aug.

16 

12 

2.4 

1.8 

1.7

1.6 

1.6 

1.8 

1.7 

1.6

1.4 

1.4 

1.3 

1.3

8.1

19 

18 

31 

43 

43

43 

43 

43 

43 

44

44 

43 

43 

41 

41 

40

Mean

1.22 

.8 

.8

9.58

.7 

.6 

.6 

1.20 

20.7 

11.4 

4.54 

21.9 

9.29

6.19

Sept.

34 

21 

20 

20 

20

20

19 

19 

19 

19

19 

11 

2.7 

2.2 

2.1

2.1 

2.1 

2.1 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

2.1 

2.2 

2.2

Runoff in 

acre-feet

75 

48 

49

6,960

43 

33 

37 

71 

1,280 

677 

279 

1,340 

553

4,480

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- Mb gage-height record Dec. 3 to Apr. 21, May 13-24; discharge computed on basis of weather 

records and records for stations on Whiteroeks River.
GREEN RIVER BASIN 265

White River near Meeker, Colo.

Location.- Water-stage recorder, lat. 40°02', long. 107°52', in sec. 30, T. 1 N , R. 93 W., 

1 mile upstream from Curtis Creek and 3j? miles east of Meeker.

Drainage area.- 762 square miles.

Records available.- May 1901 to October 1906, May 1910 to November 1913 (at site 2j miles 

downstream), and October 1933 to September 1949 in reports of Geological Survey. May 

1901 to October 1906, May 1910 to September 1949 in reports of State engineer.

Average discharge.- 44 years, 638 second-feet.

Extremes.- Maximum discharge during year, 4,490 second-feet June 18 (gage height, 4.19 feet) 

 from rating curve extended above 3,500 second-feet; minimum daily, 235 second-feet Jan 17.

1901-6, 1910-49: Maximum dally discharge, 6,070 second-feet June 16, 1921; minimum 

daily, 112 second-feet July 17, 1934.

Remarks.- Records excellent. Diversions above station for irrigation. 

Revisions.- W 764: Drainage area.

Rating tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Mar. 2 to Apr. 24, Sept. 11-30)

Oct. 1 to Nov. 30 Dec. 1 to Sept. 30

1.1 250 1.0 214 2.5 1,190 

1.2 285 1.2 274 3.0 1,760 

1.4 380 1.3 315 3.3 2,220 

1.5 440 1.7 555 3.7 3,150 

2.1, 830 4.1 4,240

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

335 

345 

355 

350 

410

410 

375 

375 

386 

386

370 

365 

360 

345 

350

355 

340 

355 

350 

350

355 

350 

350 

350 

345

355 

350 

360 

365 

370 

365

Nov.

360 

370 

380 

398 

370

350 

386 

375 

355 

*365

380 

370 

350 

350 

365

386 

392 

365 

312 

380

365 

340 

392 

386 

386

375 

355 

278 

b285 

b305

Dec.

b340 

311 

348 

348 

299

326 

299 

326 

*290 

320

354 

359 

359 

364 

359

337 

364 

354 

320 

359

354 

342 

332 

326 

274

311 

b335 

364 

326 

303 

290

Jan.

359 

342 

286 

267 

264

286 

303 

307 

326 

»359

326 

326 

342 

337 

315

267 

235 

271 

257 

282

274 

290 

311 

294 

282

267 

294 

294 

267 

b270 

b270

Feb.

264 

2fl2 

294 

299 

286

264 

282 

290 

*290 

320

242 

326 

307 

282 

294

299 

307 

311 

311 

307

307 

290 

315 

290 

303

294 

286 

299

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1943

ter year 1948-49 .......................

Mar.

294 

286 

290 

290 

294

294 

303 

311 

307 

303

303 

307 

303 

303 

320

337 

370 

359 

370 

382

394 

376 

370 

370 

370

370 

370 

370 

364 

332 

307

Apr.

299 

294

286 

278 

274

282 

348 

436 

460 

424

394 

412

478 

436 

388

388 

430 

496 

522 

586

574 

614 

720 

838 

1,000

1,020 

1,100 

1,X90 

1,370 

1,430

Secondfoot-days

11,182 

10,826 

10,293

227,582

9,170 

8,241 

10,319 

17,769 

50,073 

83,190 

27,841 

13,201 

11,473

263,578

Peak discharge (base, 2,100 sec. -ft.).- May 16 (Z a.m.

ft.; June 18 (2 p.m.) 4,490 sec. -ft.

May

1,110 

973 

1,310 

1,640 

1,680

1,430 

1,200 

1,100 

1,120 

1,290

1,370 

1,450 

1,590 

1,690 

2,000

2,120 

1,890 

1,700 

1,630 

1,690

1,500 

1,400 

1,390 

1,450 

1,650

1,930 

.2,100 

2,140 

2,260 

2,200 

2,070

Maximum

410

398 

364

3,350

359 

326 

394 

1,430 

2,260 

4,210 

1,830 

555 

448

4^210

June

2,000 

1,800 

1,590 

1,580 

1,600

1,740 

1,700 

1,860 

2,100 

2,260

2,490 

3,120 

3,740 

3,760 

3,880

3,790 

3,960 

4,210 

3,820 

.3,850

3,680 

3,540 

3,310 

3,100 

2,800

2,680 

2,490 

2,420 

2,280 

2,040

July

1,830 

1,690 

1,570 

1,480 

1,420

1,360 

1,220 

1,140 

1,040 

1,020

964 

862 

815 

770 

720

699 

672 

652 

640 

614

607 

594 

600 

652 

692

633 

607 

594 

568 

555 

561

Aug.

555 

536 

529 

496 

472

454 

472 

510 

484 

503

466 

448 

430 

442 

430

418 

418 

418 

406 

388

418 

382 

342 

370 

364

359 

348 

337 

332 

332 

342

Minimum Mean

335 361 

278 361 

274 332

250 622

235 296 

242 294 

286 333 

274 592 

973 1,615 

1,580 2,773 

555 898 

332 426 

326 382

235 722

Sept.

348 

332 

359 

370 

342

332 

332 

332 

326 

364

400 

382 

376 

424 

412

400 

400 

400 

400 

400

400 

400 

400 

388 

394

400 

394 

394 

424 

448

Runoff in 

acre-feet

22,180 

21,470 

20,420

451,400

18,190 

16,350 

20,470 

35,240 

99,320 

165,000 

55,220 

26,180 

22,760

522.800

) 2,360 sec. -ft. ; May 29 (5 a.m.) 2,360 sec.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
GREEN RIVER BASIN

Location.- Water-stage recorder, iat. 39°58', long. 109 0 10', in sec. 2, T. 10 S., R. 24

alt Lake meridian, lust downstream from Evaluation Creek and 7 miles ntrth of

Datura r,t gage is 4,949.78 feet above mean sea level, datum of 1929.

Records available - April to October 1906 (published as White River near Dragon), October 

1933 to September 1949 in reports of Geological Survey. April 1923 to September 1949 

in reports if State engineer of Colorado. Records of monthly discharge prior to 

October 1938 nave been republiohed, with some revisions and additions, in Water-Supply 

Paper 918.

Average discharge.- 26 years (1923-49), T41 second-feet.

Extremes.- Maximum discharge during year, 4,150 second-feet June 17 (gage height, 4.39 

feet) ; minimum daily, 150 second-feet .Tan. 29, Feb. 6.

1906, 1923-49: Maximum daily discharge,-8,160 seccnd-feet July 15, 1929; minimum 

discharge, 52 second-feet July 19, 20, 1934.

Remarks.- Records good except those for period of ice effect, which are fair. Diversions 

above station for irrigation.

Revisions.- W 764: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26

27 

28 

29 

30 

31

Oct.

566 

351 

342

;si

572

470 

432 

410

371 

376

393 

388

382 

376 

376

376 

382 

382 

376 

388

382 

382 

376 

376 

376

371 

371 

376 

376 

382 

382

Nov.

382 

376 

382 

398 

420

410 

382 

382 

398 

393

410 

410 

410 

398 

393

393 

398 

404 

371 393'

351 

371 

393 

371 

415

393

415 

328 

ZOO 

188

Dec.

230 

320 

342 

333 

315

262 

*279 

297

306 

360 

398 

410 

415

404

366 

310 

351 

356

356 

382 

320 

250 

227

206 

212 

215 

310 

290 

260

Jan.

270 

290 

280 

240 

230

230 

24O 

250 

*260 

310

300 

290 

310 

310 

290

260 

210 

230 

220 

240

240 

250 

260 

250 

240

200 

210 

180 

150 

160 

170

Feb.

160 

170 

180 

180 

170

150 

160 

*170 

180 

190

170 

200 

200 

200 

200

210 

220 

220 

220 

220

230 

270 

330 

*400 

450

500 

490 

460

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

Maw

June 

July 

Augu 

Sept

Wa

ber.... .................................

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 2,850 sec -ft.)-- Ju

Mar.

440 

450 

470 

480 

490

490 

490 

490 

510 

500

510 

520 

540 

560 

600

620 

700 

1,080 

978 

920

 987 

888 

810 708 ' 

669

657 

639 

627 

627 

588 

544

Apr.

527 

538

549 

576 

615

645 

645 

633 

740 

859

651 

604 

604

663 

633

571 

549

566 

604 

651

694

720 

720 

796 

880

,050 

,210 

,230 

,290 

,380

Secondfoot-days

12,010 

11,328 

9,730

254,541

7,570 

6,900 

19,582 

22,393 

53,410 

79,910 

36,708 

15,384 

14,193

289,118

ne 17 (10 p.

May

,580 

,330 

,150 

,3OO 

,690

,870 

,910 

,490 

,350 

,300

,420 

,600 

,530 

,700 

,740

,110 

,220 

,150 

,940 

,800

,810 

,780 

,660 

,470 

,480

,650 

,930

. » ooo

,080 

,180 

,180

Maximum

572 

420 

415

3,150

310 

500 

1,080 

1,380 

2,220 

4,020 

2,410 

1,030 

1,030

4,020

June

2 , 080 

1,990 

1,940 

1,720 

1,920

1,790 

1,780 

1,870 

2,190 

2,160

2,310 

2,920 

2,840 

2,800 

2,800

2,780 

3,010 

3,240 

3,490 

4,020

3,680 

3,750 

3,550

3,300 

3,080

2,760 

2,630 

2,650 

2,550 

2,310

July

,100 

,970 

,980 

, *10 

,2oO

,100 

,810 

,490 

,380 

,340

,270 

,240 

,120 

,030 

969

896 

852 

817 

817 

817

740 

714 

688 

987

831

761 

720 

682

663 

639 

615

Minimum

342

188 

206

188

150 

150 

440 

527 

1,150 

1,720 

615 

393 

404

150

Aug.

604 

588 

593 

588 

571

544 

527 

659 

1,030 

554

512 

494 

470 

459 

442

442 

448 

454 

464 

442

420 

415 

415 

404 

432

410 

410 

404 

393 

398 

398

Mean

387 

378 

314

695

244 

246 

632 

746 

1,723 

2,664 

1,184 

496 

473

792

ra.) 4,150 sec. -ft.; June 20 (4 a.

Sept.

404 

420 

415 

426 

459

454 

448 

426 

432 

442

685 

512 

482 

464 

459

464 

448 

437 

426 

420

426 

420 

410 

415 

404

404 

410 

410 

1,030 

741

Runoff in 

acre-feet

23,820 

22,470 

19,300

504,900

15,010 

13,690 

38,840 

44,420 

105,900 

158,500 

72,810 

30,510 

28,150

573,400

tn.)

4,100 sec.-ft.; July 5 (7 p.m.) 3,160 sec.-ft. 

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Dec. 30 to Mar. 17.
GREEN RIVER BASIN 267 

Willow Creek near Ouray, Utah

Location Water-stage recorder, lat. 39°56'30", long. 109°39'00", in sec. 22, T. 10 S., 

K. 20 E. Salt Lake meridian, 8 miles upstream from mouth and 10 miles south of Ouray.

Drainage area.- 967 square miles.

Records available.- July 1947 to September 1949.

Extremes.- 1947: Maximum discharge during period July to September, 905 secon,d-feet 

Aug.5 (gage height, 5.56 feet), from rating curve extended above 110 second-feet on 

basis of logarithmic plotting; no flow at times.

1947-48: Maximum discharge during water year, 424 second-feet July 25 (gage height, 

4.02 feet); no flow at times.

1948-49: Maximum discharge during water year, 740 second-feet July 5 (gage height, 

5.18 feet), by slope-area method; minimum recorded, 1.8 second-feet Oct. 15, but may 

have been less during period of no gage-height record during winter.

Remarks.- Records fair except those for periods of ice effect or doubtful or no gage-height 

record, which are poor. Diversions above station for irrigation.

Discharge in second-feet, 1947-49 

1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July

> 0.2

.3

.4

0

0

1.1

.7

.4

.1

1.0

1.1

.7

.4

0

0

0

0

Aug.

0

0

0

0

6.5

168

15

> 3.5

50

124

20

3.5

3.5

3.5

5.0

33

112

18

2.0

Sept.

. 2.0

1.9

1,9

2.4

2.5

2.5

2.5

2.5

2.4

2.2

1.9

3.2

3.2

3.0

3.2

3.4

3.4

3.0

2.7

2.4

2,0

2.0

2.2

Kote.- No gage-height record July 1-15; discharge computed from records for Minnie Maud Creek near 

Myton. Doubtful gage-height record Aug. 7-21, 23-27, Aug. 30 to Sept. 8; discharge computed on basis 

of fragmentary gage-height record and records for Minnie Maud Creek near Myton;
268 GREEN RIVER BASIN

Discharge, in second-feet, of Willow Creek near Ouray, Utah, 1947-49 Continued

1947-48

Day

1

Z

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.0

1.0 1.1

3.2

3.6

3.6

3.4

3.2

3.4

2.8

2.7

6.2

14

22

14

13

12

11

11

9.6

9.2

65

24

20

16

16

15

14

14

14

14

Nov.

14

14

14

14

14

16

12

11

14

15

14

14

13

15

12

14

15

16

*16

14

12

10

> 5.0

-

Dec.

> 5.0

(*)

> 3.0

Jan.

> 3.0

,

5.0

Feb.

5.0

 10

_

-

Mar.

' 10

> 30

35

42

50

60

72

86

107

120

130

Apr.

140

145

240

311

a240

a!70

*101

88

94

125

119

92

74

74

88

96

106

106

101

104

103

97

101

118

112

99

93

85

80

83

-

May

85

85

85

89

86

76

66

69

66

66

61

61

56

52

45

47

46

44

40

40

38

34

35

30

26

26

25

26

30

27

24

June

21

20

18

21

19

16

14

16

18

16

15

14

10

8.0

7.4

8.4

8.4

8.4

7.4

7.1

6.8

R.2

8.8 9.2-

12

51

37

22

21

17

-

July

10

4.6

5.6

6.2

6.8

4.8

5.3

7.4

4.8

;.a

2.5

1.4

2.5

3.6

3.0

.7

.4

.4

-.3

.4

.6

.1

0

0

145

46

a20

alO

a5.0

a3.0

a2.0

Aug.

a2.0

a2.0

2.2

1.1

1.6

1.3

1.3

1.1

.6

1.0

1.4

1.0

0

1.3

1.1

.8

1.3

.6

.6

.3

.1

.8

1.1

1.0

1.0

.1.1

.6

.5

1.0

1.0

1.0

Sept.

0.8

.3

0

.7

0

0

.3

.1

.1

0

0

0

0

0

0

0

0

0

3.8

2.4

.8

.7

.8

1.1

1.1

1.1

.7

.7

3.8

8.8

-

Winter discharge measurement made on this day.

a KD gage-height record; discharge interpolated, or computed on basis of records for Minnie Maud 

Creek near Myton.

Note.- Stage-discharge relation affected by ice Nov. 23 to Mar. 27 (no gage-height record Feb. 8- 

2lT!

Day

1

2

3

4

5

6

7

8

9

10.

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5.4

4.7

4.1

4.1

5.4

4.7

7.4

8.6

9.0

9.0

8.2

8.2

7.0

8.6

8.6

9.5

10

9.5

10

12

12

11

10

12

12

9.5

9.5

12

14

15

14

Nov.

13

12

12

(*)

C)

( )

11

(*)

(*)

-

Dec.

(")

> 10

(*)

Jan.

> 9

Feb.

1 '

10

> 12

(*)

_

_

-

Mar.

12

13

20

35

60 »90

80

75

70

64

55

56

47

41

40

40

40

50

44

48

Apr.

50

46

44

43

39

38

47

52

57

58

53

51

57

58

63

58

d60

d61

d62

dS4

d65

66

71

80

88

88

87

76

83

91

-

Hay

91

85

83

83

d95

129

150

111

104

97

90

109

127

dl!5

dllS

d!20

124

127

134

132

125

125

125

124

119

116

124

120

125

124

124

June

119

119

117

157

186

155

116

111

104

103

94

91

103

129

103

92

87

84

85

84

75

69

60

60

58

54

56

62

57

52

-

July

44

44

100

170

260

129

102

49

50

60

80

57

54

46

40

33

31

29

28

26

24

27

26

51

70

57

43

38

33

29

26

Aug.

21

20

20

23

20

21

22

24

77

120

90

52

40

33

30

28

25

24

23

21

20

18

18

18

18

18

47

27

26

24

24

Sept.

30

37

22

22

23

22

21

19

19

20

20

21

22

22

29

25

21

20

19

19

19

19

19

18

18

17

17

17

64

40

-

* Winter discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basis of study of chart and records for Minnie 

Maud Creek near Myton.

Note.- No sage-height record Jan. 4 to Mar ZO, July 9-11, 25; discharge computed on basis of 4 discharge measurements, weather records, engineer's notes, and records for Minnie Maud Creek near Myton. 

Stage-discharge relation affected by ice Nov. 4 to Jan. 3.
GREEN RIVER BASIN 

Monthly discharge, in second-feet of Willow Creek near Ouray, Utah, 1047-49

269

Month

December. ...................................

Calendar year .......................

February

March. ......................................

April. ......................................

May.........................................

September. ..................................

The period ................................

October 1947 ...............................

December. ...................................

Calendar year .......................

January 1948

March. ......................................

April.......................................

May. ........................................

September. ..................................

Water year 1947-48 .......................

December. ...................................

Calendar year 1948 .......................

May.........................................

June ....,-. - , ,

September. ..................................

Water year 1948-49 .......................

Secondfoot-days

_

_

72.4

_

111.0

-

3 585 * ___

31 9

Z8.1

8,230.3

310

8,342.3

3,575

2,847

992

701

14,438.0

Maximum

_

_

3.4

_

-

8.8

311

-

311

150

186

260

120

64

260

Minimum

_

_

_

1.9

.

-

-

0

0

-

0

83

52

24

18

17

-

Mean

_

.

_

2.41

.

3.58

-

51 2

.94

22.5

9 19

10

22.8

115

94.9

59.9

32.0

23.4

39.6

Runoff in 

acre- feet

_

_

144

1,370

220

-

56

16,320

615

16,550

7,090

5,650

3,680

1,970

1,390

28,640
270 GREEN RIVER BASIN

Minnie Maud Creek at Nutter Ranch, near Myton, Utah

Location.- Water-stage recorder, lat. 39°48'45", long. 110°15'00", in SE£, sec. 32, T. 11

 3., H. 15 E., three-quarters of a mile upstream from Gate Canyon, 18 miles north of 

Siinnyside, 22 miles upstream from mouth, and 29 miles- south of Myton.

Drainage area.- 231 square miles.

Records available.- July 1947 to September 1949.

Extremes.- 1947: Maximum discharge during period July to September, 704 second-feet

 Aug. 22 (gage height, 5.96 feet); minimum, 0.9 second-foot Aug. 4.

1947-48: Maximum discharge during water year, 158 second-feet Aug. 24 (gage height, 

2.88- feet); minimum, 0.4 second-foot Aug. 4.

1948-49: Maximum discharge during water year, 670 second-feet June 19 (gage height, 

5.50 feet); minimum recorded, 3.5 second-feet Nov. 18.

Remarks.- Records good except those for periods of ice effect or doubtful or no gage-

 height record, which are fair. Some diversions above station for irrigation.

Discharge, In second-feet, 1947-49 

1947

Day

1

2

3

4

5

6

7

8

July

11

11

11

11

11

11

11

11

Aug.

2.?

1.6

1.2

1.7

26

26

8.7

10

Sept.

13

11

10

9.6

9.3

9.5

9.8

10

Day

9

10

11

12

13

14

15

16

July

10

9.4

8.2

6.2

6.2

5.1

4.2

4.4

Aug.

24

78

50

16

16

13

29

17

Sept.

10

9.7

9.4

11

11

11

11

9.7

Day

17

18

19

20

21

22

23

24

July

5.7

7.2

4.6

3.7

3.7

11

6.9

4.9

Aug.

29

21

17

16

27

387

115

73

Sept.

11

10

10

9.4

9.4

9.2

9.0

9.2

Day

25

26

27

28

29

30

31

July

4.7

4.4

4.6

4.0

3.3

3.3

2.7

Aug.

58

44

35

28

22

18

15

Sept.

9.0

9.0

9.0

8.7

9.0

9.7

-

Note.- No gage-height record July 1-8, Aug. 23 to Sept. 7; discharge computed on basis of 

records for nearby streams.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.2

8.4

8.0

8.2

7.7

6.4

6.2

6.2

6.4

6.6

8.7

12

9.2

9.7

8.7

8.2

7.7

7.4

7.4

7.4

7.7

9.4

8.0

6.8

7.0

8.2

8.2

8.2

8.4

8.4

7.4

Nov.

7 0

7 0

7 4

8 0

9 0

11

12

11

9.0

9.0

13

9.0

»8.4

8.2

8 0

8.0

8.0

8.0

8.0

7.3

6.9

5.0

-

Dec.

(«)

 5.0

Jan.

5.0

(*)

8.0

Feb.

\ 8.0

> 13

liar.

> 13

. 30

Apr.

25

25

25

25

24

32

23

25

30

38

24

19

19

25

23

21

51

52

45

49

58

54

51

52

49

50

50

49

50

50

-

May

49

48

47

47

46

46

45

45

44

44

46

42

40

37

27

33

33

27

27

26

30

26

17

16

14

17

17

14

12

11

9.4

June

7.4

6.8

9.0

9.0

8.7

8.7

8.7

8.7

7.7

8.2

8.0

7.7

7.0

5.9

5.5

5.3

5.1

4.9

4.9

4.7

6.2

5.7

5.1

4.6

4.6

4.7

5.3

5.3

4.7

5.3

-

July

4.9

3.8

4.6

3.7

3.7

3.5

3.7

3.7

3.5

3.7

3.7

3.0

2.3

2.3

2.3

2.0

2.2

1.9

2.0

2.3

2.3

2.0

2.3

2.0

5.2

5.7

3.5

3.2

2.5

2.2

1.7

Aug.

1.1

1.2

1.5

4.5

4.6

10

9.0

7.7

7.2

6.6

5.2

4.0

4.0

3.8

3.7

3.8

3.5

2.6

2.6

2.7

3.5

4.4

4.2

26

12

9.0

7.4 "7.0

6.4

5.7

5.1

Sept.

4.6

4.0

3.5

3.3

3.0

3.0

3.6

4.0

4.2

4.2

4.2

4.0

4.4

4.7

4.4

4.6

4.6

4.9

7.2

7.0

6.6

6.6

6.4

6.6

6.6

5.1

3.8

4.7

5.7

5.5

-

* Winter discharge measurement made on this day.

Note.- No gage-height record Dec. 23 to Apr. 4; discharge computed on basis of 2 discharge measurements, weather records, and records for Willow Creek near Ouray. Stage-discharge relation affected 

by ice Nov. 14 to Dec. 22. Doubtful gage-height record Apr. 26 to May 10; discharge computed on 

basis of records for Willow Creek near Ouray.
GREEN RIVER BASIN 271

Discharge, in second-feet, of Minnie Maud Creek at Nutter Ranch 

near Myton, Utah, 1947-49--Continued

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5.3

5.3

5.1

5.9

34

13

12

11

10

9.7

9.4

9.4

9.2

9.2

9.2

7.7

8.0

7.7

7.7

7.2

6.8

6.4

6.4

6.4

6.4

6.4

6.8

9.4

9.7

9.2

8.7

Nov.

8.4

»8.7

8.4

8.4

8.4

8.2

9.2

8.2

»7.8

8.0

8.4

9.0

9.4

9.0

8.4

8.0

8.0

8.0

> 8.0

-

Dec.

( )

 7.5

Jam.

 7.2

( )

Feb.

C)

> 7.2

. 8.0

C)

1 »9.0

-

-

"

Mar.

> 9.0

 10

11

13

35

32

35

33

28

30

27

22

18

20

17

17

16

17

21

Apr.

20

19

19

17

24

42

62

74

75

86

83

94

99

94

86

87

98

102

111

113

116

116

120

130

141

134

134

140

152

150

-

Hoy

141

129

140-

146

154

150

140

128

116

115

119

130

138

136

141

135

138

186

245

239

243

219

204

174

152

135

126

118

113

101

83

June

69

63

63

94

95

87

88

88

83

76

97

122

94

83

76

70

69

73

129

73

66

63

68

66

55

'46

42

30

24

El

-

July

21

19

33

47

33

58

25

24

33

49

53

42

41

42

35

31

26

24

22

20

14

12

10

16

16

11

11

9.9

9.2

7.4

7.9

Aug.

7.6

7.6

8.9

7.9

6.2

5.6

5.6

6.2

9.9

19

15

12

13

16

13

12

14

14

13

13

13

13

15

16

16

15

15

15

14

15

14

Sept.

14

15

16

15

14

13

13

13

13

15

13

12

13

15

14

14

14

15

15

14

12

13

14

15

16

16

15

14

32

19

-

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 9-11, Nov. 19 to Mar. 16 (no gage-height record Dec. 5 to Mar. 14); discharge computed on basis of 8 discharge measurements, weather records, 

and records for Willow Creek near Ouray.

Monthly discharge, in second-feet, 1947-49

Month

September. ..................................

The period. ........... ....................

October 1947 ...............................

December. ...................................

Calendar year 1947 .......................

March. ......................................

April.......................................

May.........................................

July. .......................................

September. ..................................

Water year 1947-48 .......................

December. ....................................

Calendar year 1948 .......................

Marph. ......................................

May.........................................

September. ..................................

Water year 1948-49 .......................

Secondfoot-days

296.6

-

155.0

.

180.0

145.0

4,409.8

278.6

247.9

232.5

4,649.0

223.2

228.0

519.0

2,738

4,634

2,173

802.4

380.5

446

12,903.1

Maximum

13

-

_

7.2

58

9.4

60

35

15E

E45

129

58

19

32

245

Minimum

8.7

-

.

_

9 4

3.6

1.1

-

1.7

83

21

5.6

12

.-

Mean

39 5

9.89

-

5.00

_

5 74

4.83

12.0

7.5

12.7

16.7

149

72.4

12.3

14.9

35.4

Runoff in 

acre-feet

588

3,450

453

307

_

353

599

288

8,750

461

9,220

443

885

25,590
272 GREEN RIVER BASIN

Prica River above Scofield Reservoir, near Scofield, Utah

Location.- Water-stage recorder, lat. 39°46' , long. 111 0 !!', in SE^ sec. 18, T. 12 S., R. 

'/ hi., at mouth of canyon, 800 feet upstream from bridge, half a mile upstream from 

Pontown Creek, and 4 miles north of Scofield.

Drainage area.- 62 square miles.

Records available.- June 1931 to September 1932 (fragmentary, published as Fish Creek 

above reservoir, near Scofield), October 1938 to September 1949.

Average discharge.- 11 years (1938-49), 45.0 second-feet.

Extremes.- Maximum discharge during year, 594 second-feet May 17 (gage height, 2.94 feet); 

minimum recorded, 7.2 second-feet Oct. 3, but probably was less during period of no 

gage-height record.

1931-32, 1938-49: Maximum discharge, 673 second-f'eet May 19, 1932; minimum determined, 3 second-feet Sept. 10-30, 1932, Nov. 9, 1942, Oct. 24, 1945, but may have been 

less during periods of ice effect or no gage-height record.

Remarks.- Records good except those for periods of- ice effect, no gage-height record, or 

backwater, which are fair. Small transmountain diversions in headwaters for irrigation 

in Sevier Lake Basin, and one diversion above station for irrigation.

Discharge, In second-feet, water year October 1943 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

23 

23 

24 

25

26 

27 

28 

29

30

31

Oct.

8.4 

8.0 

7.6 

*7.6 

12

12 

10 

8.8 

8.8 

8.4

8.0 

8.0 

8.4 

8.8 

10

9.6 

8.8 

9.2 

9.6 

9.6

9.2 

9.6 

9.2 

9.2 

9.2

9.2 

9.5 

9.0 

9.0 

9.2 

9.8

Nov.

10

10 

11 

11 

10

9.2 9.0' 

9.0 

9.2 

9.4

*9.6 

\ 9.8

« 9.4

Dec.

(*)

. 9.4

Jan.

(*)

 8.0

Feb.

 7.4 

C)

Month

Goto 

Hove 

Dece

Ca

janu 

Febn 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

&ry

ti.. .....................................

ter year 1948-49 ...............

Mar.

, 8.0

8.2 

8.4 

8.8 

9.2

10 

11 

12 

14 

16

19 

19 

18 

17 

18

17 

16 

17 

16 

15 

15

Apr.

15 

15 

16 

17 

20

25 

30 

35 

40 

45

47 

51 

52 

55 

57

58 

64 

70 

76 

85

90 

107 

131 

153 

177

199 

226 

267 

306 

298

Secondfoot-days

283.7 

288.0 

291.4

11,599.9

248.0 

207.2 

372.6 

2,827 

9,921 

3,432 

920 

420.6 

284.0

19,495.5

May

255 

288 

349 

341 

276

235 

222 

222 

274

347

366 

374 

355 

374 

399

371 

496 

477 

414 

385

363 

326 

296 

291 

288

286 

279 

264 

253 

237 

218

Maximum

12

11

382

19 

306 

496 

209 

52 

18 

11

,' 496

June

209

195 

175 

189 

175

175 

174 

170 

141 

136

146 

129 

123 

115

110 _

106 

97 

94 

88 

80

76 

71 

69 

65 

61

59 

56 

52 

49 

47

July

45

45 

52

48

44

39 

37 

36 

37 

38

34 

33 

30 

29 

28

27 

26 

26 

25 

23

22 

22 

22

21 

20

20 

19 

19 

18 

18 

17

Minimum

7.6

-

15 

218 

47 

17 

9.6 

8.4

-

Aug.

17 

17 

17 

18 

16

16 

16 

16 

17 

18

16 

14 

14 

13 

13

12 

12 

12 

12 

12

11

11 

12 

12 

13

12 

11 

11 

10

10 

9.6

Mean

9.15 

9.60 

9.4

31.7

8.0 

7.4 

12.0 

94.2 

320 

114 

29.7 

13.6 

9.5

53.4

Sept.

10 

clO 

ell 

clO 

c9.0

c9.0 

c9.0 

c9.0 

clO 

ell

clO 

c9.6 

c9.6 

c9.4 

o9.4

c9~.4 

c9.4 

o9.4 

C9.4 

9.6

9.2 

8.8 

8.8 

8.4 

8.8

9.6 

9.2 

9.2 

9.2

9.6

Runoff in 

acre-feet

563 

571 

578

23,010

492 

411 

739 

5,610 

19,680 

6,310 

1,820 

834 

563

38,670

Peak discharge (base. 550 sec.-ft.).- May 3 (1O p.m.) 385 sec.-ft.; May 17 (9 p.m.) 594 sec.-ft.

* Winter discharge measurement made on this day.

c Stage-discharge relation affected by backwater.

Note.- Stage-discharge relation affected by ice Oct. 27 to Dec. 4. No gage-height record Dec. 5 

to Apr. 11; discharge computed on basis of 4 discharge measurements, weather records, and records for 

nearby streams.
GREEN RIVER BASIN 273

Scofield Reservoir near Scofield, Utah

Location.- Inclined staff gage, lat. 39°47', long. 111°08', in sec. 10, T. 12 S., R. 7 E., 

auo reet from face of dam on Price River and 5 miles northeast of Scofield. Datum of 

gage is mean sea level (levels by Bureau of Reclamation).

Drainage area.- 163 square miles.

Records available.- October 1941 to September 1949. Fragmentary records 1926 to 1941 on 

rile in Office of State Engineer.

Extremes.- Maximum net contents during year, 47,250 acre-feet June 22-24 (elevation, 

Y,blU.6 feet); minimum, 441 acre-feet Oct. 16-24 (elevation, 7,586.4 feet).

1941-49: Maximum net contents, that of June 22-24, 1949.

Maximum contents known, about 56,500 acre-feet at time first partial failure occurred May 21, 1928 (elevation, about 7,607.2 feet).

Remarks.- Reservoir is formed by earth and rock fill, rock-faced dam 800 feet downstream 

rrom old dam in use up to Nov. 7, 1945. Use of new dam began Nov. 8, 1945. Usable 

capacity of reservoir formed by new dam is 64,380 acre-feet between elevations 7,586.0 

feet (bottom of outlet works) and 7,617.feet (crest of spillway). Dead storage, 8,000 

acre-feet below elevation 7,586.0 feet. Gage read to tenths about 9 a.m.; figures given 

herein represent usable contents at that time. Water used for'irrigation in vicinity 

of Price.

Cooperation.- Capacity table furnished by Bureau of Reclamation. 

Revisions (water years).- W 1089: 1946.

Contents, in acre-feet, water year October 1948 to September 1949

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

771

661

551

551

551

551

551 551'

551

551

551

551

551

551

551

441

441

441

441

441

441

441

441

441

-

_

_

-

-

_

-

Nov.

a787

-

-

-

-

_

-

-

-

-

1,220

1,220

1,220

-

1,680

_

-

1,680

_

1,800

.

1,800

-

-

1,800

_

1,800

-

1,920

-

-

Dec.

1,920

-

-

2,040

-

2,290

-

_

2,530

-

2,660

-

2,660

-

2,660

_

-

2,660

_

2,660

_

2,780

-

2,780

-

_

2,780

-

2,780

_

2,780

Jan.

2,780

-

2,780

-

-

2,780

-

2,910

-

2,910

_

2,910

_

-

3,040

_

3,160

-

3,160

-

_

3,420

-

3,550

-

3,680

-

-

3,950

_

-

Feb.

a4,070

_

_

_

-

_

-

_

-

-

.

-

_

-

-

_

-

4,770

_

-

4,770

-

4,770

-

-

4,910

_

5,050

_

_

-

Mar.

5,050

5,050

_

_

5,190

_

5,190

_

5,330

-

_

5,470

_

5,330

-

5,610

5,760

5,760

_

-

5,900

_

-

6,050

-

_

_

6,340

_

6,490

-

Apr.

a6,660

_

_

_

-

_

-

_

_

-

_

7,560

7,560

7,870

8,020

8,340

-

-

9,310

9,480

9,810

10,150

10,490

-

11,530

11,700

12,240

12,960

13,690

14,060

-

May

14,810

15,570

16,540

17,120

17,710

18,500

19,100

_

20,300

20,710

22,130

22,540

23,370

24,410

-

26,300

27,160

28,450

29,770

30,660

31,780

33,140

33,600

34,300

34,990

35,700

36,400

37,120.

37,830

38,310

39.28Q

June

39,520

40,000

40,490

40,980

41,480

41,970

42,460

42,960

43,210

43,710

44,210

44,460

44,960

45,220

45,470

45,720

46,230

46,230

46,480

46,740

47 , 000

47,250

47,250

47,250

47,000

47,000

46,740

46,740

46,230

45,980

-

July

45,720

45,220

44,710

44,710

44,460

44,460

44,460

44,460

44,460

44,460

44,460

44,210

43,710

43,460

42,960

42,460

41,970

41,480

40,980

40,740

40,250

39,760

39,280

38,790

38,310

37,830

3/.350

37,120

36,640

36,170

35,700

Aug.

35,460

34,990

34,530

34,300

33,830

33,370

32,910

32,460

32,230

31,780

31,550

31,330

31,100

30,660

30,210

29,990

29,550

29,330

28,890

28,450

28,020

27,590

27,160

26,940

26,520

26,090

25,670

25,460

25,250

24,830

24,620

Sept.

24,200

23,990

23,780

23,370

22,960

22,750

22,540

22,340

22,130

21,930

21,930

21,720

21,520

21,320

21,110

21,110

20,910

20,910

20,710

20,500

20,500

20,300

20,100

19,900

19,700

19,500

19,500

19,100

18,900

18,900

-

Monthly elevation and contents, wa-ter year October 1948 to September 1949

Date

Dec . 1 ..................

Calendar year 1948.'. ..

Oct. 1.. ................

¥ater year 1948-49....

Elevation 

(feet)

7,587.7

-

,598.1

-

Contents 

(acre-feet)

1,920

-

14,810

18,900

-

Change In contents 

during month 

(acre-feet)

+1,133

+860

-8,750

+1,290

+24,710

+18,130

a No gage-height record; discharge interpolated.

Mote.- 8,000 acre-feet of dead storage not included in contents
274 GREEN RIVER BASIN

Price River near Scofield, Utah

Location.- Water-stage recorder and concrete control, lat. 39°47', long. 111°07', in 

 SEij sec. 10, T. 12 S., R. 7 E., 800 feet downstream from new Scofleld Reservoir Dam,

5 miles northeast of Scofield, and 9 miles upstream from White River. Datum of gage

is 7,570.13 feet above mean sea level.

Drainage area.- 163 square miles.

Records available - November 1917 to September 1921, June to September 1925, April 1926 

to September 1931, October 1938 to September 1949.

Average discharge.- 16 years (1926-31, 1938-49), 59.2 second-feet.

Extremes.- Maximum discharge during year, 273 seeond-feet July 29 (gage height, 2.75 feet); 

practically no flow during winter when reservoir gates were closed.

1917-20, 1926-31, 1938-49: Maximum discharge, 1,000 second-feet on or about May 

24, 1920 (gage height, 10.4 feet, from floodmark, site and datum then in use), from 

rating curve extended above 500 second-feet. Practically no flow each winter while 

reservoir gates are closed.

Remarks.- Records good. Flow completely regulated by Scofield Reservoir (see preceding 

page). Small diversions above Scofield Reservoir for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

37 

34 

31 

20 

12

13 

13 

12 

9.9 

9.9

9.9 

9.9 

9.9 

2.5 

.2

' .1

Nov.

 0.1

Dec.

' 0.1

. .2

Jan.

> 0.3

Feb.

 0.3

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebri 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ber year 1948-49 ...............

Mar.

. 0.4

1 Apr.

0.4

J4

.4 

.4

:1.4

.4 

.4

.4 

.3 

.3

Secondfoot-days

225.8 

3.0 

4.7

19,975.5

9.3 

8.4 

12.4 

11.8 

12.4 

1,352.4 

5,762 

5,882 

2,594

15,878.2

May

0.3 

.3 

.3 

.4 

.4

.3 

.3 

.3 

.3 

.3

.4 

.2 

.2 

.2 

.2

.2 

.4 

.4 

.3 

.4

.4 

.4 

.4 

.4 

.5

.6 

.7 

.7 

.7 

.7 

.8

Maximum

37

264

.8 

209 

246 

242 

143

246

June

0.8 

3.8 

40 

22 

.9

1.2 

1.0 

1.0 

1.2 

1.2

1.7 

1.7 

1.7 

1.9 

1.9

2.1 

21

47 

15

1.9

9.4 

70 

72

84 

86

111 

156 

180 

209 

206

July

207 

207 

189

133 

67

51 

51 

51 

69 

84

160 

23-2 

203 

219 

220

224 

227 

231 

229 

220

245 

246 

242 

238 

229

223 

227 

220 

216 

202 

220

Minimum

0.1

.1

.2 

.8 

51 

144 

51

.1

Aug.

224 

236 

214 

198 

242

239 

233 

187 

192 

186

168 

166 

166 

165 

166

166 

166 

183 

215 

222

218 

212 

211 

209 

203

167 

148 

145 

146 

145 

144

Mean

7.28 

.1 

.15

54.6

.3

.3

.4 

.39 

.40 

45.1 

186 

190 

86.5

43.5

Sept.

143 

131 

121 

110 

95

92 

92 

92 

91 

92

92 

92 

91 

70 

65

53 

51 

53 

70 

70

74 

76 

76 

76 

89

94 

94 

92 

88 

69

Runoff in 

acre-feet

448 

6.0 

9.3

39,630

18 

17 

25 

23 

25 

2,680 

11,430 

11,670 

5,150

31,500

Mote.- No gage-height record Oct. 16 to Apr. 12, Apr. 20-21, June 23-25; discharge computed on 

basis of 6 field estimates of flow, weather records, and records for station near Helner.
GREEN RIVER BASIN 275

Price River near Heiner, Utah

Location.- Water-stage recorder, lat. 39°43'05", long. 110°51'55", in SW^ sec. 1, T. 13 

a., K. 9 E., two-thirds of a mile north of Heiner and three-quarters of a mile downstream from Willow Creek.

Drainage area.- 455 square miles.

Records available.- June 1934 to September 1949.

Average discharge.- 15 years, 109 second-feet.

Extremes.- Maximum discharge during year, 1,610 second-feet, July 3 (gage height, 4.26 

feet); minimum recorded, 4.2 second-feet Oct. 31, but may have been less during period 

of ice effect.

1934-49: Maximum discharge, 9,340 second-feet Sept. 13, 1940 (gage height, 7.98 

feet), by slope-area ESthod; minimum, less than 1 second-foot at times Sept. 1-10, 

1934.

Remarks - Records good except those for periods of ice effect, or doubtful or no gageheight record, which are fair. Station is above diversions from main stream for irrigation. Several small diversions from tributaries above station for irrigation and 

municipal supply. Flow affected by Scofield Reservoir (see p. 273).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

42 

41

37 

48

63

21

22 

21 

21

21 

20 

20

22

17 

16 

16 

17 

16

16 

16 

16 

17 

17

16 

10 

12 

13 

14 

12

Nov.

12 

13 

14 

12 

13

11 

12 

12 

11 

10

9.5 

*9.0 

9.0 

9.2 

9.5

9.7 

10 

9.7 

9.0 

9.0

9.3 

9.5 

10 

9.5

9.0

8.6 

8.5 

8.5 

8.5 

8.5

Dec.

(*;

> 7.0

Jan.

(*)

> 7.0

Feb.

> 7.0

? 8.0 

I 9.0

I"

*13 

16 

18

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

18 

19

22 

31

, 33

32 

32 

29 

28 

30

32 

35 

41 

56 

*74

72 

87 

90 

98 

99

71 

83 

75 

65 

59

62 

61 

62 

54 

54 

53

Apr.

50 

54 

62 

85 

a!05

a!25 

al50 

a!60 

a!70 

al80

a!95 

217 

239 

246 

242

249 

266 

280 

280 

287

302 

325 

361 

391 

417

417 

431 

449 

483 

474

Secondfoot-days

684 

303.5 

217.0

29,850.0

217.0 

262.0 

1,657 

7,692 

10,296 

5,176 

7,488 

6,022 

3,114

43,128.5

Hay

440 

391 

408 

417 

404

361 

333 

298 

276 

287

317 

337 

329 

317 

314

238 

353 

413 

382 

382

365 

341 

325 

314 

302

295 

287 

276 

262 

246 

226

Maximum

63 

14

288

99 

483 

440 

310 

398 

246 

182

483

June

214 

217 

239 

273 

209

182 

180 

167 

156 

151

151 

3140 

d!30 

dlE5 

(3120

(3118 

d!20 

160 

158 

98

89 

115 

138 

158

167

165 

209 

226 

291 

310

July

306 

321 

f398 

290 

f!92

113 

105 

103 

107 

142

160 

236 

270 

256 

266

273 

280 

284 

284 

266

273 

284 

280 

273 

270

256 

a260 

a250 

a 240 

a230 

a220

Minimum

10 

8.5

3.3

18 

50 

226 

89 

103 

160 

53

-

Aug.

230 

242 

246 

184 

242

230 

239 

212 

198 

195

177 

170 

165 

162 

162

162 

162 

172 

195 

209

212 

212 

217 

217 

212

187 

165 

160 

162 

162 

162

Mean

22.1 

10.1 

7

81.6

7 

9.36 

53.5 

256 

332 

173 

242 

194 

104

118

Sept.

132 

165 

151 

146 

125

113 

113 

111 

113 

129

115 

113

121 

103 

75

69 

56 

53 

66 

74

75 

80 

80 

80 

85

109 

109 

109 

111 

83

Runoff in 

acre-feet

1,360 

602 

430

59,210

430 

520 

3,290 

15,260 

20,420 

10,270 

14,850 

11,940 

6,180

85,550

* Winter discharge measurement made on'this day.

a No gage-height record; discharge computed on baais of records for nearby stations.

d Doubtful gage-height record; discharge computed as explained in footnote a.

f Fragmentary gage-height record; gage heights partly estimated.

Note.- Stage-discharge relation affected by Ice Nov. 9-16, 18-22, Nov. 24 to Feb. 27 (no gageheight record for part of period); discharge computed on basis of 4 discharge measurements, weather 

records, and records for White River near Soldier Summit.
276 GREEN RIVER BASIN

Price River at Woodside, Utah

Location.- Water-stage recorder, lat. 39°17', long. 110°21', in SE^ sec. 9, T. 18 S., R. 

14 K., at bridge on U. S. Highway 50 at Woodside, and 20 miles upstream from mouth.

Drainage area.- 1,500 square miles.

Records available.- April 1909 to August 1911, November 1945 to September 1949.

Extremes.- Maximum discharge during year, 3,57 0 second-feet July 4 (gage height, 4.33 

feet); minimum, 5.1 second-feet Nov. 27.

1909-11, 1945-49: Maximum discharge observed, 8,100 second-feet Sept. 1, 1909, by 

float measurement; no flow on several days during July, August, September 1910.

Remarks.'- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Many diversions above station for irrigation. Flow affected by storage in Scofield Reservoir. Records of chemical analyses for water year 1949 are given 

in Water-Supply Paper 1163.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

17 

13 

16 

12 

82

67 

24 

26 

22

18

16 

15 

12 

12 

13

17 

13 

12 

13 

15

18 

18 

18 

17 

16

17 

18 

219 

120 

58 

32

Nov.

27 

23 

24 

24 

*24

23 

24 

24 

22 

26

24 

27 

24 

24 

26

27 

28 

*31 

30 

30

32 

35 

36 

37 

38

*40 

20

18 

23 

25

Dec.

(*) 

25

C) 

31

C)

> 28 

C)

Jan.

> 25

(*)

> 28

C)

> 31

(»)

> 32

Feb.

C) 

' 32

(*)

34 

38 

40 

44 

48

52 

55

57 

60 

*66

85 

110

140

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 1,000 sec. -ft.).- Ju

sec. -ft.; June 19 (3 p.-m.j 3,000 sec. -ft.; J 

2,660 sec. -ft. 

* Winter discharge measurement made on thi

Mar.

190 

230 

*290 

350 

260

275 

270 

*252 

184 

148

148 

167 

135 

114 

111

120 

132 

135 

148 

161

170 

123 

138 

126 

106

84 

84 

97 

111 

97 

92

Apr.

86 

76 

72 

67 

79

132 

202 

198 

221 

210

221 

252 

266 

270 

248

248

243 

266 

270 

270

280 

275 

270 

270 

290

290 

280 

280 

305 

332

May

320 

266

214 

214 

225

221 

214 

184 

157 

123

100 

117 

174 

154 

135

135 

129 

344 

338 

285

295 

256 

243 

230 

187

174 

164 

184 

410 

238 

177

Second- MO-I , ,. . , Maximum foot -days

986 219 

816 40 

883

16,715.9 812

874 

1,309 140 

5,048 350 

6,769 332 

6,607 410 

7,390 1,220 

6,563 1,770 

2,374 170 

2,779 938

42,398 1,770

June

161 

151 

138 

358 

489

374 

404 

285 

£80 

206

177 

503 

4O4 

195 

135

123 

108 

114 

1,220 

f362

a240 

- f!54 

106 

132 

114

108 

89 

82 

94 

84

July

114 

89 

254 

1,770 

875

1,200 

332 

138 

111 

97

86

82 

72 

86 

82

69 

72 

67 

65 

63

61 

56 

65 

126 

154

114 

69 

54 

48 

46 

46

Aug.

43 

40 

54 

86

54 

50 

138

170 

167

157 

117 

72 

58 

58

50 

48 

50 

46 

45

45 

52 

79 

76 

12O

132 

86 

69 

58 

48 

50

Sept.

54 

79 

86 

76

61

58 

46 

42 

40 

38

111 

84 

65 

65 

79

56 

40 

37 

31 

28

26 

24

23 

23 

28

34 

35 

38 

938 

434

Minimum «ean %£*£

12 31.8 1,960 

18 27.2 1,620 

28.5 1,750

7.0 45.7 33,160

28.2 1,730 

46.8 2,600 

84 163 10,010 

67 226 13,430 

100 213 13,100 

82 246 14,660 

46 212 13,020 

40 76.6 4,710 

23 92.6 5,510

12 116 84,100

ne 4 (10:10 p.m.) 1,030 sec. -ft.; June 12 (9 a.m.) 1,170 

uly 4 (12:50 p.m.) 3,570 sec. -ft.; Sept. 29 (7:30 a.m.)

s day.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note.- Stage-discharge relation affected by ice Nov. 18-26, Nov. 29 to Mar. 7 (no gage-height reord Jan. 6-14, Jan. 21 to Mar. 4; discharge computed on basis of 13 discharge measurements, weather 

ecords, and records for stations on nearby streams.
GREEN RIVER BASIN 277

Gooseberry Creek near Scofield, Utah

Location.- Water-stage recorder, lat. 39°43', long. 111 0 18', in SW£ sec. 6, T. 13 S., R. 

b E., 300 feat downstream from old Mammoth Dam, 5| miles upstream from mouth, and 7 

miles west of Scofield.

Drainage area.- 16.4 square miles.

Records available.- October 1930 to September 1931, May 1940 to September 1949.

Average discharge.- 10 years (1930-31, 1940-49), 19.5 second-feet.

Extremes.- Maximum discharge during year, 360 second-feet May 17 (gage height, 2.31 feet); 

minimum daily recorded, 2.3 second-feet Sept. 21-24, but may have been less during 

period of no gage-height record.

1930-31, 1940-49: Maximum discharge, 366 second-feet May 18, 1941 (gage height, 

2.25 feet); minimum recorded, 1.6 second-feet Aug. 30, 1946.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Transmountain diversion above station to Sevier River Basin for 

irrigation, part of which is water diverted into Gooseberry Creek from Boulger Creek. 

A small reservoir on Gooseberry Creek 5 miles above station (capacity, about 1,900 

acre-feet), is used to regulate these diversions. Flow also affected by small reservoir 

1 mile above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20,

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.9 

2.9 

Z.9 

2.9 

4.6

4.5 

3.6 

3.3 

3.3 

2.9

2.9 

2.9 

2.9 

3.3 

3.6

3.3 

3.3 

3.3 

3.3 

3.3

3.3 

3.3 

3.3 

3.3 

3.3

3.3 

3.6 

b3.3 

b3.2 

b3.2 

b3.2

Nov.

b3.3 

b3.4 

b3.4 

b3.3 

b3.2

b3.1 

b3.1 

b3.0 

b3.1 

b3.2

b3.4 

b3.5 

3.6 

3.3 

3.3

3.3

b3.3 

b3.2 

b3.0 

b3.2

b3.3 

b3.3 

b3.4 

b3.3 

b3.2

b3.1 

b3.1 

b3.0 

b3.1 

b3.1

Dec.

b3.1 

b3.1 

b3.1 

b3.1

> 3.1

Jan.

> 2.9

Feb.

 2.8 

> 3.0

Month

Octo 

Move 

Dece

Ca

janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

I 3.2

1"

4.0

I"

Apr.

4.5 

4.5 

4.7 

5.0 

5.8

7.0 

9.0 

10 

11 

13

16 

20 

25 

28 

33

36 

38 

40 

41 

44

46 

50 

54 

58 

63

68 

78 

95 

118 

116

Secondroot-days

102.3 

97.1 

96.1

4,571.8

89.9 

81.0 

116.5 

1,141.5 

4,234 

1,460 

408.5 

200.1 

112.8

8,139.8

May

82 

110 

151 

130 

88

,70 

68 

77 

118 

157

167 

165 

155 

172 

187

172 

290 

248 

195 

174

159 

134 

115 

110 

113

116 

111 

107 

105 

98 

90

Maximum

4.6 

3.6

149

118 

290 

86 

24 

8.5 

5.1

290

June

 86 

78 

68 

86 

74

63 

62 

62 

60 

63

70 

58 

56 

55 

51

48 

44 

42 

41 

36

33 

31 

29 

28 

26

24 

24 

22 

21 

19

July

19 

19 

24 

22 

19

18 

16 

15 

16

17

16 

15 

15 

13 

13

13 

12 

12 

11 

10

9.0 

9.0 

9.0 

8.5 

9.0

9.0 

8.5 

8.5 

8.0 

7.5 

7.5

Minimum

2.9 

3.0

-

4.5 

68 

19 

7.5 

4.6 

2.3

2.3

Aug.

8.0 

8.0 

8.5 

8.5 

7.5

7.5 

7.5 

7.5 

8.5 

8.5

7.5 

7.0 

6.5 

6.5 

6.5

6.0 

6.0 

6.0 

6.0 

5.1

5.1 

5.1 

5.6 

6.0 

5.6

5.1 

5.1 

5.1 

5.1 

4.6 

4.6

Mean

3.30 

3.24 

3.1

12.5

2.9 

2.89 

3.76 

38.0 

137 

48.7 

13.2 

6.45 

3.76

22.3

Sept.

5.1 

5.1 

.1 

.1 

.6

.6 

.1 

.1 

.1 

.1

.6 

.1 

.6 

4.6 

4.6

4.1 

3.3 

2.9 

2.9 

2.6

2.3 

2.3 

2.3 

2.3 

2.6

3.3 

3.3 

2.9 

2.9

3.3

Runoff In 

acre -feet

203 

193 

191

9,070

178 

161 

231 

2,260 

8,400 

2,900 

810 

397 

224

16,150

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 5 to Apr. 25 (stage-discharge relation affected by ice most of 

period); discharge computed on basis of weather records and records for nearby atreams.
278 GREEN RIVER BASIN

White River near Soldier Summit, Utah

Location. - Water-stage recorder and concrete control, lat. 39°55', long. 111°04', in SE-J- 

 sec. 30, T. 10 S., R. 8 E., 600 feet downstream from North Fork and 1 mile southeast 

of Soldier Summit.

Records available.- April 1938 tc September 1949. 

Average discharge.- 10 years (1939-49), 17.8 second-feet.

Extremes.- Maximum discharge during year, 272 second-feet Apr. 29 (gage height, 2.57

feet); minimum recorded, 2.3 second-feet Nov. 14, but-may have been less during period 

of ice effect.

1938-49: Maximum discharge, 288 second-feet May 10, 1941 (gage height, 3.70 feet); 

no flow at times in July, August, September 1939.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Two small diversions fronr North Fork for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4

5

6 

7 

8 

9

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.5 

2.5 

2.5 

2.8

3.7

3.4

2.8 

2.8 

2.8 

2.5

2.5 

2.5 

£.5 

2.5 

2.8

2.8 

3.0 

2.8 

2.8 

2.8

2.8 

2.8

2.8 

2.8 

2.8

2.8 

3.0 

2.8 

2.8 

2.9 

3.2

Nov.

3.2 

3.4

3.7 

3.7 

3.4

2.8 

2.6 

2.5 

2.6 

2.7

*2.8 

£.8 

2.8

£.5 

3.0

3.2 

' 2.9

Dec.

(*) 

' £.9

Jan.

(*)

> 2.8

Feb.

£.8

. 

3.5 

(*)

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

3.5 

3.5 

3.6 

3.9 

4.5

4.5

4.0 

3.8 

3.8 

3.8

4.0

4,'.5 

5.0 

*6.9

9.6 

17

£1 

26

27

30 

26 

24 

22 

25

21 

20 

21 

19 

19 

18

Apr.

18 

17 

18 

21 

29

41 

53 

57 

59 

70

81 

96 

101 

101 

98

112 

115 

120 

127 

131

144 

180 

223 

227 

243

252 

261. 

269 

269 

259

Secondfoot -days

86.8 

88.3 

89.9

3,792.1

86.8 

85.5 

409.1 

3,79£ 

4,387 

1,346 

415.8 

191.8 

132.3

11,111.3

May

221 

197 

210 

204

178

156 

141 

127 

124 

136

139

142 

137 

132 

127

119 

129 

144 

156 

162

151 

142 

136 

129 

124

120 

114 

107 

101 

94 

88

Maximum

3.7 

3.7

95

30 

269 

221 

85 

23 

9.6 

6.5

269

June

85 

81 

74 

82 

71

68 

63 

58 

54 

52

50 

48 

43 

41 

39

38 

36 

36 

34 

31

30 

29 

28

27 

26

26 

25 

24 

24 

23

Minimum

July

21 

21 

23 

21 

20

18 

17 

16 

15 

15

14 

13 

13 

13 

12

13 

14 

12 

12 

11

11 

10 

9.1

11 

11

10 

9.6 

8.6 

8.1 

6.5 

6.9

2.5 

2.5

1.5

3.5

17 

88 

23 

6.5 

4.3 

3.7

-

Aug.

6.5 

6.5 

6.9

7.2 

7.2

7.6 

7.2 

7.6 

8.1

s.e

8.1 

6.9

6.9 

6.1 

6.1

5.8 

5.8 

5.4 

5.4 

5.0

4.6 

4.6 

5.8 

6.5 

5.8

5.4 

5.0 

5.0 

4.6 

4.3 

4.3

Mean

2.80 

2.94 

2.90

10.4

2.80 

3.05 

13. £ 

126 

142 

44.9 

13.4 

6.19 

4.41

30.4

Sept.

.3

.3 

.6 

.6 

.9

.7 

.7 

.7 

.9 

.5

.4 

.6 

.0 

.0 

.6

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3 

.3

.3 

.3 

.3 

.3

.3

Runoff in 

acre-feet

172 

175 

178

7,530

172 

170 

811 

7,520 

8,700 

2,670 

825 

380 

262

22,040

Peak dlseharfta (base, 90 sec.-ft.).- Apr. 29 (12 p.m.) 272 sec.-ft.; May 20 (11 a.m.) 165 sec.-ft.

* Winter dischajge measurement made on this day.

. Note.- Stage-discharge relation affected by ice Oct. 28-30, Nov. 6-11, Nov. 17 to Mar. 14 (no gageheight record Dec. J.5 to Mar. 14); discharge computed on basis of 4 discharge measurements, weather 

records, and records for Price River near Heiner.
GREEN RIVER BASIN 279

Huntington Creek near Huntington, Utah

Location.- Water-stage recorder, lat. 39°22'15", long. 111°03'45", in SEij sec. 6, T. 17 

 S., R. 8 E., 1 mile upstream from Fish Creek and 7 miles northwest of Huntington.

Drainage area.- 188 square miles.

Records available - May 1909 to September 1917, October 1918 to November- 1920 (fragmentary), April 1921 to September 1949.

Average discharge.- 34 years (1910-17, 1921-29, 1930-49), 98.0 second-feet.

Extremes.- Maximum discharge during year, 562 second-feet June 12 (gage height, 3.43 feet); 

minimum not determined, probably occurred during period of no gage-height record.

1909-49: Maximum discharge, 2,500 second-feet Aug. 2 or 3, 1930 {gage height, 7.5 

feet, from floodmark), from rating curve extended above 600 sejcond-feet; minimum determined, 2 second-feet Nov. 5, 1926, during period of ice effect, but may have been less 

during other periods of ice effect.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Small diversions above station for irrigation, including transmountain 

diversions to Sevier Lake Basin. Flow slightly regulated by small reservoirs above 

station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

28

27 

27 

27 

35

34 

32

31 

33 

33

32

33 

33 

34

36

34 

31 

31 

34 

30

29 

29 

28

27 

28

27 

30 

32 

32

34 

30

Nov.

32 

33 

35

32 

30

31 

31 

25 

27 

28

27 

*28 

30 

31

31

33 

29 

27

l 26

Dec.

' 26 

(*)

> 25

Jan.

(*)

> 24

Feb.

> 24

 25

*27

27 

28

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948

ter year 194d 49 .......................

Peak discharge (bass 400 sec. -ft.).- May 1

ft.; July 3 (8 p.m. ) 498 sec. -ft.; July 4 (3

Mar.

28 

26 

29 

28 

31

29 

30 

28

26 

30

29 

29 

28 

29 

31

32 

33 

*34

36 

38

35 

35 

34 

32 

32

33 

33 

34 

33 

32 

33

Apr.

34 

33 

33 

34 

38

44 

46 

50 

50 

52

56 

64 

67 

72 

75

81 

92 

96 

107 

103

105 

124 

148 

169 

188

201 

224 

279 

288 

263

Secondfoot-days

961 

852 

790

23,554

744 

699 

970 

3,216 

10,797 

9,573 

5,495 

3,752 

1,702

39,551

8 (12:05 a.m 

p.m. ) 408 s

May

212 

247 

305 

292 

238

196 

181 

207 

282 

322

355

370 

340 

366 

404

416 

471 

480 

416 

404

373

336 

3i6 

366 

412

437 

424 

412 

424 

400 

373

Maximum

36 

35

370

32 

38 

288 

480 

511 

272 

148 

91

511

June

362 

336 

302 

366 

319

263 

266 

295 

333 

385

424 

511 

502 

484 

458

441 

433 

396 

344 

308

256 

250 

244 

209 

193

186 

196 

188 

174 

159

July

155 

153 

181 

183 

153

146 

136 

126 

132 

138

126 

118 

116 

110 

144

201 

209 

272 

266 

247

241 

241 

238 

229

207 

199

186 

166 

126 

132

Minimum

27

-

26 

33 

181 

159 

110 

94 

34

-

. ) 553 sec. -ft. ; June 

ec.-ft.; Aug. 9 (1:30

Aug.

148 

140 

140

138 

132

134 

134 

136 

148 

140

134 

130 

126 

124 

120

116 

116 

116 

112 

112

110 

110 

112 

110 

108

107 

103 

103 

101 

94 

98

Mean

31.0 

28.4 

25.5

64.3

24 

25.0 

31.3 

107 

348 

319 

177 

121 

56.7

108

Sept.

91 

84 

81 

73 

38

66

67 

67 

67 

75

66 

63 

64 

64 

62

59 

55 

55

53

51

50 

41

36 

35 

35

37 

34 

34 

35 

34

Runoff in 

acre-feet

1,910 

1,690 

1,570

46,730

1,480 

1,390 

1,920 

6,380 

21,420 

18,990 

10,900 

7,440 

3,380

78,470

12 (11 p.m. ) 562 sec.- 

p.m. ) 420 sec. -ft.

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 9-13, Nov. 19 to Feb. 25 (no gage-height record Dec. 22 to Jan. 10, Jan. 18 to Feb. 25); discharge computed on basis of 4 discharge measurements 

weather records, and records for nearby streams.

939921 O - 51 - 19
280 GREEN RIVER BASIN

San Rafael River near Castle Dale, Utah

Location.- Water-stage recorder, 1st. 39°09', long. 110°64', in NW£ see. -27, T. 19 S., R. 

9 E., half a mile downstream from Perron Creek and 8 miles southeast of Castle Dale.

Drainage area.- 927 square miles.

Records available.- October 1947 to September 1949.

Extremes.- Maximum discharge during year, 1,740 second-feet June 18 (gage height, 5.18 

feet); minimum, 10 second-feet Oct. 4.

1947-49: Maximum discharge, that of June 18, 1949; minimum recorded, 3.5 secondfeet Aug. 30, Sept. 14, 1948, but may have been less during periods of no gage-height 

record..

Remarks.- Records good except those for periods of .ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

13 

13 

13 

22

17 

14 

14 

15 

16

15 

14 

13 

14 

14

14 

14 

15 

19 

19

18 

19 

19 

19 

19

19 

21 

56 

42

31 

34

Nov.

28 

28 

29 

32 

27

28 

33 

26

23 

27

34

32 

31 

32 

33

 32 

37 

25 

28 

33

36 

34 

42 

36 

35

31 

28 

28 

28 

28

Dec.

35 

30

J 28 

,

33

H

Jan.

' 25

 30 

' 35

Feb.

35

1-

39 

45

50 

55 

60

Month

Octo 

Hove 

Pace

Ca

Janu. 

Pebn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

sry

ter year 1948-49 ...............

Mar.

70 

85 

130 

260 

-230

240 

260 

230 

2.00; 

170

180 

166 

119 

108 

98

103 

*108 

98 

91 

93

77 

73 

77 

64 

54

50 

47 

56 

62 

62 

58

Apr.

82 

80 

60 

50 

48

56 

67 

75 

82 

89

101 

116 

147 

150

127

121 

163 

192 

d210

d220

d210 

d235 

d270 

d270 

d280

d290 

d340 

404 

426 

467

Secondfoot-days

597 

924 

952

29,436.2

860 

1,062 

3,719 

5,428 

15,493 

22,459 

4,436 

2,213 

678

58,821

May

311 

340 

444 

476 

431

324 

249

185 

175 

291

413 

552 

528 

490 

660

631 

596 

660 

524 

431

409

357 

295 

303 

636

750 

810 

788 

826 

842 

766

Maximum

56 

42

700

260 

467 

842 

1,410 

708 

771 

93

1,410

June

675 

567 

495 

793 

d850

d700 

d700 

d570 

d620 

d750

d900 

1,280 

,280 

,250 

,040

,070 

,070 

,170 

,410 

,050

80S 

625 

550 

495 

408

358 

318 

272 

219 

168

July

132 

107 

348 

708 

d500

d275 

d200 

d!90 

180 

189

171 

138 

105 

90 

73

66 

88 

88 

90 

70

63 

62 

69 

86 

75

57 

53 

47 

42 

39 

35

Minimum

12

23

3.8

47 

48 175 ' 

168 

35 

18 

16

12

Aug.

34 

34 

44 

34

33

31 

49

217 

771 

181

78 

56 

48 

45 

44

41 

40 

39 

35 

29

30 

31 

31 

37 

51

33 

27 

26 

24 

22 

18

Mean

19.3 

30.8 

30.7

80.4

27.7 

37.9 

120 

181 

500 

749 

143 

71.4 

22.6

161

Sept.

18 

20 

23 

20 

20

16 

16 

16 

18 

25

21 

17 

18 

26 

21

18 

17 

16 

18 

17

18 

18 

16 

16 

-17

20 

19 

,46 

93 

34

Hunoff in 

acre-feet

1,180 

1,830 

1,890

58,400

' 1,710 

2,110 

7,380 

10,770 

30,730 

44,550 

8,800 

4,390 

1,340

116,700

*Wlnter discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basis of records for station near (Jreenrlver.

Mote.- Stage-discharge relation affected by Ice Dec. 1 to Mar. 11 (no gage-height record Jteb. 

2-25); discharge computed on basis of 1 discharge measurement, weather records, and records for 

station near Greenriver.
GREEN RIVER BASIN 281

San Rafael River near Green River, Utah

Location.- Water-stage recorder, lat. 38 C 52', long. 110 0 22', in SW£ sec. 27, T. 22 S., R. 

14 E., just downstream from bridge on State Highway 24, 15 miles southwest of Green 

River, and 35 miles upstream from mouth.

Drainage area.- 1,690 square miles.

Records available.- May 1909 to September 1918, September 1919 to July 1920 (gage heights 

only), October 1945 to September 1949.

Average discharge.- 13 years (1909-18, 1945-49), 229 second-feet.

Extremes.- Maximum discharge during yea* , 3,200 second-feet July 6 (gage height, 7.11 

I'eet), from rating curve extended above 1,500 second-feet by logarithmic plotting; no 

flow Oct. 1-3.

1909-20, 1945-49: Maximum discharge, 8,640 second-feet Aug. 22, 1947, from rating 

curve extended above 800 second-feet by logarithmic plotting; no flow at times.

Remarks.- Records fair. Small diversions for irrigation above and below station. Records 

or chemical analyses, water temoeratures, and suspended sediment loads for water year 

1949 are given in Water-Supply Paper 1163.

Discharge, in second-feet, water year October 1948 to September1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

.1 

1.8

2.8 

3.6 

11 

11 

9.8

9.3 

9.8 

10 

10 

11

9.3

8.4 

8.8 

11 

11

12 

14 

14 

15 

15

13 

14 

57 

50 

46 

44

Nov.

33 

33 

*32 

30 

30

31 

30 

26 

27 

27

25 

26 

a32 

a31 

a30

34 

34 

*28 

27 

26

25 

26 

28 

30 

34

*34 

19 

23 

26 

30

Dec.

(*) 

30

(*) 

38

(*)

f 33

1 0

Jan.

28 

(*)

1" 

J,

Feb.

(*)

39 

(*)

> 41

(*) 

44 

48 

52 

55

58 

62

70 1

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

85 

*115 

200 

27C 

300

270 

290 

300 

*280 

210

180 

d!90 

141 

143 

114

114 

126 

107 

d!02 

dlOO

107 

96 

86 

89 

68

65 

63 

60 

65 

71 

71

Apr.

72 

100 

98 

68 

56

55 

52 

61 

70 

77

89 

107 

118 

137 

143

126 

128 

150 

178 

206

219 

206 

222 

266 

266

281 

285

333 

404

433

Secondfoot-days

432.7 

867 

1,068

31,360.6

969 

1,220 

4,478 

5,006 

15,252 

26,130 

6,814 

2,429 

1,283. 6

65,947.3

May

494 

308 

368 

453 

453

368 

274 

235 

213 

197

263 

400 

546 

d526 

d500

619 

665 

636 

683 

d500

d430 

d375 

325 

292 

.292

665 

796 

826 

814 

880 

856

Maximum

57 

34

1,120

70 

300 

433 

880 

1,690 

1,010 

1,200 

267

1,690

June

748 

636 

494 

626 

1,080

742 

856 

596 

796 

838

1,100 

dl,350 

dl,470 

1,450 

1,260

1,060 

1,080 

1,190 

1,690 

1,510

1,040 

862 

718 

636 

546

473 

400 

359 

289 

235

July

225 

222 

186 

875 

1,010

1,000 

820 

263 

178 

167

249

132 

139 

111 

88

83

132 

86 

82 

83

72 

58 

55 

57 

80

83 

68 

57 

57 

50 

46

Minimum

0 

19

0

60 

52 

197 

235 

46 

22 

6.1

0

Aug.

41 

34 

38 

33 

26

26 

26 

26 

174 

1,200

141 

43 

29 

36 

26

31 

40 

29 

39 

36

32 

27 

24 

25 

26

44 

53 

39 

29 

24 

22

Mean

14.0 

28.9 

34.5

85.7

31.3 

43.6 

144 

167 

492 

871 

220 

78.4 

42.7

181

Sept.

20 

17 

14 

14 

20

16 

13 

13 

15 

192

267 

128 

76 

36 

26

30 

-26 

19 

17 

13

11 

11 

7.2 

7.2 

8.4

8.4 

6%1 

9.3 

147 

94

Runoff in 

acre-feet

858 

1,720 

2,120

62,210

1,920 

2,420 

8,880 

9,930 

30,250 

51,830 

13,520 

4,820 

2,540

130,800

Peak discharge (base. 1.800-sec.-ft.).- June 19 (8 p.m.) 2.440 sec.-ft.; July 6 (1 a.m.) 3,200 

sec.-ft.; July 7 (1 a.m.) 2,290 sec.-ft.; Aug. 10 (8:30 a.m.) 2,230 sec.-ft'. 

* Winter discharge measurement made on this day.

a No gage-height record"; discharge computed on basis of records for station near Castle Dale, 

d Doubtful gage-height 'record; discharge computed as explained In footnote a. 

Note.- Stage-discharge relation affected by ice Nov. 18-20, Nov. 28 to Mar. 8.
282 GREEN RIVER BASIN

Boulger Creek near Fairview, Utah

Location.- Water-stage recorder, lat. 39°38', long. 111°16 I , In NW£ sec. 4, T. 14 S., R. 

b K. , 2 miles upstream from mouth and 9-j miles east of Fairview.

Drainage area.- 1.9 square miles.

Records available.- May 1938 to September 1949 (discontinued). April to September 1928, 

May to September 1929, April to August 1931 in file 5! of State engineer. (No winter 

records 1938-39, 1941-42.)

Average discharge.- 10 years, 3.7 second-feet.

Extremes.- Maximum discharge during year, 34 second-feet May 17 (gage height, 1.97 feet); 

minimum discharge not determined, occurred during period of no gage-height record.

1938-49: Maximum discharge, 85 second-feet May 18, 1948; minimum not determined, 

occurred during ice period.

Remar-ks. - Records fair. Diversion above station to Gooseberry Creek Basin where water is 

red!verted to Sevier River Basin for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.1 

.6 

.8 

.7 

.9

.0 

.0 

.0 

.0 

.0

.0 

.0 

.0.1

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1 .1 .1 

.1

1.0

Nov.

1.0 

1.0 

1.0 

.9 

l.O

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

.7 

.6 

.6 

.6

Dec.

0.6 

k .5

Jan.

0.5

Feb.

0.5

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febn 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 ...............

Mar.

 0.6 

' .7

Apr.

}*'

)"

I"

} "

} ,.

} »

4.5 

4.5

5.4 

5.7 

6.7

6.7 

6.7

Secondfoot -days

31.8 

28.4 

17.9

1,072.7

15.5 

14.0 

20.3 

76.7 

544.0 

442.1 

112.2 

54.9 

37.5

1,395.3

May

6.5 

7.5 

8.5 

8.5 

7.5

7.8 

8.2 

9.5 

12 

14

16 

17 

18 

22 

25

25 

27 

22 

20 

19

16 

14 

15 

19 

25

27 

27 

26 

27 

25 

?2

Maximum

1.1 

1.0

58

6.7 

27 

24 

5.4 

2.2 

1.6

27

June

20 

18 

16 

19 

17

17 17 ' 

20 

?1 

21

24 

24 

22 

19 

18

18 

17 

14 

13 

11

9.8 

9.5 

9.2 

7.8 

7.8

7.2 

7.0 

6.7 

5.9 

5.2

July

4.1 

5.4 

5.2 

4.9 

4.5

4.5 

4.5 

4.7 

4.7 

4.3

4.3 

4.3 

4.5 

4.3 

4.3

3.9 

3.7 

3.5 

3.1 

3.1

2.6 

2.5 

2.5 

2.5 

2.2

2.3 

2.5 

2.5 

2.3 

2.3 

2.2

Minimum

0.6 

.6

-

6.5 

5.2 

2.2 

1.1 

.8

-

Aug.

2.1 

2.2 

2.2 

2.2 

2.2

2.2 

2.1

2.0 

1.9 

2.2

2.1 

2.2 

2.1 

1.6 

1.4

1.3 

1.1 

1.1 

1.8 

1.8

1.6 

1.8 

1.8 

1.8

1.6

.1.5 

1.5 

1.6 

1.3 

1.3 

1.3

Mean

1.03 

.95 

.58

2.93

.5 

.5 

.65 

2.56 

17.5 

14.7 

3.62 

1.77 

1.25

3.82

Sept.

1.3 

1.3 

1.2 

1.3 

1.3

1.3 

.8 

.9 

1.0 

1.0

1.0 

1.0 

1.1 

1.2 

1.3

1.3 

1.3 

1.3 

1.3 

1.4

1.3 

1.3 

1.5 

1.1 

1.4

1.6 

1.4 

1.3 

1.4 

1.6

Runoff In 

acre-feet

63 

56 

36

2,130

31 

28 

40 

152 

1,080 

877 

222 

109 

74

2,770

Peak discharge (base, 55 see.-ft.).- May 17 (5 p.m.) 34 sec.-ft. 

Note.- No gage-height record Nov. 30 to Apr. 25; discharge computed on basis of weather records 

nd records for nearby streams. Stage-discharge relation affected by Ice Nov. 29.
GREEN RIVER BASIN 283

Cottonwood Creek near Orangeville, Utah

Location.- Water-stage recorder, lat. 39°15'55", long. 111°07 I 40", in SW£ sec. 10, T. 18 

5., K. 7 E., 2 miles upstream from Grimes Wash and 5 miles northwest of Orangeville.

Drainage area.- 200 square miles.

Records available.- May 1909 to September 1927 (fragmentary), May 1932 to September 1949.

Average discharge.- 33 years (1910-20, 1921-27, 1932-49), 104 second-feet.

Extremes.- Maximum discharge during year, 1,500 second-feet July 4 (gage height, 5.14 

feet); minimum not determined, occurred during period of no gage-height record.

1909-27, 1932-49: Maximum discharge, 2,870 second-feet Aug. 9, 1941 (gage height, 

6.38 feet), from rating curve extended above 780 second-feet; minimum discharge observed, 4 second-feet Jan. 24, 1933 (discharge measurement), bat may have been less 

during periods of ice effect.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Small diversions above station for irrigation.- Ephraim and Spring 

City tunnels constructed by Bureau of Reclamation in 1936 and 1938, re~spectively, and 

several small canals divert from headwaters of Cottonwood Creek to Great Basin for 

irrigation in San Pitch River Basin.

Discharge, In second-feet, water year October: 1943 to September 1949

Day

1 

2 

3 

4

5

6 

7

e

9 

10

11

12 

13

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

25 

25 

25 

25 

29

27 

26 

26 

27 

27

27 

26 

27 

28 

28

27 

26 

26 

28 

27

26 

26 

26 

26 

27

26 

27 

31 

26 

30 

31

Nov.

31 

31 

32 

29 

27

32 

29 

25 

29 

32

31 

*29 

28 

28 

28

27 

25 

25

> 27

Dec.

(*) 

27

20

Jan.

(*)

' 20

Feb.

> 20

(*) 

23

23 

24 

25

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

1..... ..................................

ter year 1948-49 .......................

Mar.

24 

22 

23 

24 

25

24

23 

22 

21 

22

23 

23 

24

26

26

29

*30 

30 

32 

32

29 

29 

26 

26

26

26 

26 

29 

26 

26 

26

Apr.

26 

26 

26 

27 

34

39 

43 

45 

48 

47

51 

59 

60 

55 

55

68

80 

88 

101 

101

98 

120 

146 

163 

169

190 

223 

258 

265 

254

Secondfoot-days

834 

842 

788

25,858

620 

575 

800 

2,965 

12,189 

15,136 

4,606 

1,680 

939

41,974

May

220 

244 

303 

315 

272

233 

203 

190 

213 

276

348 

399 

378 

430 

505

500 

505 

490 

426 

412

378 

382 

378 

370 

462

545 

550 530" 

580 

602 

550

Maximum

31 

32

555

25 

32 

265 

602 

731 

348 

78 

36

731

June

520 

462 

417 

476 

404

395 

386 

449 

535 

626

662 

674 

731 

686 

668

680 

717 

626 

590 

545

-500 

476 

444 

417 

390

378 

356 

331

311 

284

Minimum

July

269 

296 

336 

348 

247

209 

172 

166 

175

166

158 

155 

143

136 

125

123 

118 

110 

108 

98

94 

94

118 

101 

90

84 

80 

76 

73 

70 

68

25

-

21

26 

190 

284 

68 

36 

27

-

Aug.

68 

73 

68 

70 

63

63 

62 

78 

74 

63

57 

56 

55 

55 

54

52 

52 

50 

48 

46

48 

48 

48 

50 

46

43

40

39 

38 

37 

36

Mean

26.9 

28.1 

25.4

70.7

20 

20.5 

25.8 

98.8 

393 

504 

149 

54.2 

31.3

115

Sept.

36 

36 

36 

35 

33

33 

33 

33 

33 

34

32 

32 

33 

33 

32

31 

30 

30 

30 

28

28 

28 

27 

27 

29

29 

28 

32

30 

28

Runoff in 

acre-feet

1,650 

1,670

1,560

51,290

1,230 

1,140 

1,590 

5,880 

24,180 

30,020 

9,140 

3,330 

1,860

83,250

Peak discharge (base. 900 sec.-ft.).- July 4 (4:15 p.m.5,1^500 sec.-ft.; July 5 (4 p.m.) 906 sec.- 

ft.: am?. 9 (7T40 p.m.) 922 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 9, 12-14, 16, Nov. 18 to Mar. 8 (no gageheight record Jan. 5-11, 19, 21, Jan. 23 to Pel.. 24); discharge computed on basis of 4 discharge 

measurements, weather records, and records for Huntington Creek near Huntington.
284 GREEN RIVER BASIN 

Cottonwood Creek near Castle Dale, Utah

Location.- Water-stage recorder, lat. 39°10', long. 110°56', in sec. 8, T. 19 S., R. 9 E., 

half a mile upstream from Rock Canyon and 6 miles east of Castle Dale.

Drainage area.- 261 square miles.

Records available.- July 1947 to September 1949.

Extremes.- Maximum discharge during year, 808 second-feet June 18 (gage height, 4.58 feet); 

miniman, 1.2 second-feet Aug. 31.

1947-49: Maximum discharge, 1,600 second-feet Aug. 22, 1947 (gage height, 6.14 

feet), by slope-area method and velocity-area studies; minimum,1.0 second-foot Sept. 18, 

19, 21, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Many diversions above station for irrigation. Ephraim and Spring City 

tunnels constructed by Bureau of Reclamation in 1936 and 1P38, respectively, and several 

small canals divert from headwaters of Cottonwood Creek to Great Basin for irrigation 

in San Pitch River Basin.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

aS.O 

a5.0 

aS.O 

a6.6 

alO

aS.O 

6.0 

6.0 

6.2 

6.8

6.2 

6.2 

4.3 

4.1 

4.1

3.9 

3.5 

4.7 

5.8 

6.0

7.5 

8.6 

8.3 

7.8 

8.0

8.0 

8.6 

19 

13 

12 

11

Nov.

10 

9.8 

10 

10 

9.5

9.8 

11 

9.8 

9.5

10

11 

10 

10 

10 

9.8

*11 

11 

8.9 

8.0 

10

11 

11 

11 

b!3 

b!2

bll 

b9.5 

a9.0 

a9.4 

alO

Dec.

1

>(*) 

alO

> a9.0

Jan.

 a8.S

Feb.

 alO

I al2

a!5 

a!5 

a!5 

a!5 

*a!7

a!8 

a!9 

a2&

Month

Goto 

Nove 

Deoe

Ca

Janu 

Pebn 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

1.......................................

St.... ..................................

ter year!948-49 ...............

Mar.

a20 

a20 

a21 

a22 

a22

a21 

a21 

a20 

a!9 

a20

a21 

a23 

b22 

b21 

b25

31 

*31 

29 

29 

28

22 

21 

22 

18 

17

16 

13 

14 

14 

12 

12

Apr.

14 

14 

8.9 

7.8 

7.2

7.5 

8.0 

9.2 

10 

10

10 

11 

13 

12 

12

16 

24 

28 

35

43

26 

28 

45 

6? 

75

99 

114 

188 

197 

204

Secondfoot-days

225.2 306' 

294

10,748

263.5 

344 

647 

1,339.6 

8,235 

9,053 

1,537.8 

318,5 

169,9

22,733.5

May

150 

158 

236 

260 

268

188 

144 

113 

116 

166

236 

319 

279 

322 

425

369 

325 

299 

224 

195

166 

144 

134 

128 

252

425 

435 

405 

452 

487 

415

Maximum

19 

13

402

31 

204 

487 

606 

202 

63 

16

606

June

331 

216 

158 

236 

190

156 

130 

146 

247 

347

418 

606 

594 

587 

494

491 

523 

583 

553 

452

316 

242 

224 

181 

148

128 

120 

100 

80 

56

July

42 

28 

131 

202 

186

139 

102 

82 

76 

82

63 

53 

32 

27 

22

18 

23 

23 

22 

17

16 

14 

16 

25 

20

16 

15 

12 

13 

11 

9^

Minimum

3.5 

8.0

1.0

12 

7.2 

113 

56 

9.8 

2.4 

3.5

2.4

Aug.

9.8 

9.2 

10 

8.6 

8.6

7.8 

8.0 

23 

63 

a27

a!2 

a9.6 

a8.8 

aS.O 

a7.5

a7.4 

a7.2 

a6.8 

a6.2 

a5.8

6.0 

6.8 

5.3 

6.2 

6.8

6.8 

6.5 

7.0 

6.5 

3.9 

2.4

Mean

7.26 

10.2 

9.48

29.4

8.5 

12.3 

20.9 

44.7 

266 

302 

49.6 

10.3 

5.66

62.3

Sept.

3.7 

5.1 

4.7 

5.3 

5.8

4.9 

6.0 

6.0 

6.0 

7.0

4.5 

4.5 

5.1 

6.8 

5.1

3.5 

4.1 

4.1 

5.8 

4.7

6.0 

5.1 

4.1 

4.1 

4.3

5.8 

5.5 

6.5 

16 

9.8

Runoff In 

acre-feet

447 

607 

583

21,320

523 

682 

1,280 

2,660 

16,330 

17,960 

3,050 

632 

337

43,090-

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of 3 discharge measurements.weather records, 

and records for nearby streams.

b Stage-discharge relation affected by Ice.
GREEN RIVER BASIN 295

Perron Creek (upper station) near Ferron, Utah

Location.- Water-stage recorder, lat. 39°05'55", long. 111°11'05", in NW£ sec. 7, T. 20 

3., R. 7 E. Salt Lake meridian, about 300 feet upstream from Upper South and Upper 

North Canal diversions, and 3 miles west of Ferron.

Drainage area.- 157 square miles.

Records available.- December 1947 to September 1949. May 1911 to September 1923 at site 

J.J miles upstream (drainage area, 140 square miles), record equivalent. Records for 

station at site half a mile downstream, published as Ferron Creek near Ferron April 1909 

to October 1911, not equivalent because of diversions just below present site.

Extremes.- 1947-48: Maximum discharge during period December to September, 1,300 secondfeet Aug. 4 (gage height, 5.70 feet); minimum daily recorded 6.8 second-feet Mar. 17, 

but. may have been less jJuring period of ice effect.

la4b-49: Maximum discharge during water year, 1,200 second^feet June 18 (gage 

height, 5.67 feet), by slope-area method; minimum recorded, 2.9 second-feet, but may 

have been less during period of ice effect.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnicn are fair. Small diversions above station for irrigation. Many diversions below.

Discharge, In second-feet, 1947-49 

1947-48

Das

1

2

3

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Oct. Nov. Deo.

 b!2

(*)

Jan. '

' *blO

Feb.

blO

(*)

-

-

Mar.

. be

7.1

7.5

8.4 *6.e"

9.4

8.7

8.4

b7.0

16

18

20

18

12

11

14

15

11

7.5

Apr.

9.1

12

11

11

9.1

9.7

7.8

8.1

11

16

d!7

dll

d!2

16

28

33

34

29

25

22

32

29

428

d27

326

d 25

d30

42

33

28

-

Hay

30

30

28

46

58

74

65

55

46

d45

d44

d60

d80

dllO

dlSO

d200

d250

d350

d425

d360

389

333

319

340

322

287

270

304

287

257

297

June

345

333

248

215

212

204

199

194

194

174

170

156

146

139

141

137

131

131

118

111

141

118

109

102

101

101

101

93

93

93

July

94

96

90

81

77

73

69

65

63

68

92

88 

87

7(5

73

71

69

69

74

69

64

63

62

60

59

56

52

51

50

46

42

Aug.

41

39

37

75

68

51

43

40

37

33

30

27

25

23

22

22

22

23

21

18

16

17

18

19

19

19

18

18

18

18

17

Sept.

16

16

16

16

16

15

15

14

14

14

13

13

13

13

13

13

13

13

14

13

13

\S

13

13

13

13

13

13

13

13

Peak discharge (base. 600 see.-ft.].- May 21 (9 p.m.) 740 sec.-ft.j Aug. 4,(2:30 p.m.^ 1,300 sec.- 

ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed on basis of records for nearby stations.
286 GREEN RIVER BASIN

Discharge, in second-feet, of Perron Creek (upper station) near Perron, Utah, 1947-49 Continued

1948-49

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24 

25

26

27

28

29

30

31

Oct.

13

12

12

12

15

12

14

13

13

12

12

12

12

12

13

12

11

11

15

13

12

11

12

12 

12

12

13

12

10

16

15

Nov.

13

15

15

8.9

7.2

7.4

7.8

8.4

9.0

9.9

11

8.9

7.2

7.2

*8.9

9.5

9.5

9.5

I ...

> 8.9

-

Dec.

8.9

8.9

8.9

C)

V 07 1 o . /

> 7.8

Jan.

(*)

. 7.8

7.0

Feb.

' 7.0

C)

_

_

-

Mar.

> 8.0

» 10

. 15

(*)

20

21

20

23

21

17 

17

15

14 

9.5

10

9.5

12

11

12

12

Apr.

19

17

16

15

20

22

26

29

29

32

41

58

64

50

57

64

92

134

132

128

142 

164

174

164 

147

164

191

234

207

204

-

May

174

209

226

202

167

151

144

147

194

243

255

215

-204

286

336

292

326

316

261

255

249 

240

258

299 

354

435

372

383

420

509

435

June

598

350

336

450

354

354

361

428

502

531

583

675

553

479

502

535

601

571

524

457

402 

379

361

322 

292

252

226

204

191

176

-

July

176

147

176

153

147

147

128

120

124

120

111

104

99

92

90

97

94

92

88

87

83 

79

85

77 

71

63

75

72

69

68

69

Aug.

66

72

75

60

57

62

54

136

94

86

82

80

80

78

76

74

72

63

68

58

58 

56

56

56 

54

53

51

49

45

42

41

Sept.

40

37

33

28

24

21

19

19

19

20

19

19

20

19

18

18

17

17

17

18

18 

17

17

16 

17

18

17

69

23

19

-

Peak discharge ftase, 600 see.-ft.). June 11 (9:30 p.m.) 764 sec.-ft.; June 18 (2:30 p.m.) 1,200 

sec.-ft.; Aug. 8 (2:30 p.m.) 1,120 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 6, 7, 9, 10, 19-30, Dec. 1, Dec. 4 to Mar. 16 

(n« gage-height record Dec. 13 to Mar. 15, Aug. 10-15); discharge computed on basis of discharge 

measurements, weather records, and records for nearby stations.

Monthly discharge, in .second-feet, 1947-49

Month

December 1947 ..............................

Calendar year .......................

Hay.........................................

September. ..................................

Water year 1947-48 .......................

October 1948 ...............................

December. ...................................

Calendar year 1948 .......................

March. ......................................

Hay.........................................

July

September. ............................. ...I.

Water year 1948-49 .......................

Secondfoot-days .

372

_

5 911

413

16,028.6

264.0

16,576.5

2,060

673

31,463.9

Maximum

.

_

425

16

425

425

J.36

69

675

Minimum

.

_,

ft a

7 (%.

13

6.8

6.8

41

16

-

Mean

12.0

9 93

13.8

52.6

12 5

8.52

45.3

94 5

66.5

22.4

86.2

Runoff in 

acre-feet

738

_

S19

31,780

524

32,860

AT 1

4,090

1,330

62,400
GREEN RIVER BASIN

287

Ferron Creek near Castle Dale, Utah

Location.- Water-stage recorder, lat. 39°06'25", long. 111°01 I 20", in SE£, sec. 4, T. 20

 8., H. 8 E. Salt Lake meridian, 6 miles east of Ferron and 7 miles south of Castle Dale.

Drainage area.- 210 square miles.

Records available - December 1947 to September 1949. June 1911 to September 1914 at site 

ij miles downstream from present site.

Extremes.- 1947-48: Maximum discharge during period December to September, 344 second-

 feet June 2 (gage height, 2.43 feet); minimum daily, 0.6 second-foot Sept. 25, 26.

1948-49: Maximum discharge during water year, 770 second-feet June 18 (gage height, 

3.90 feet), by slope-area method; minimum daily, 1.5 second-feet Oct. 3.

Remarks.- Records good except those for periods of ice effect or fragmentary, doibtful, or 

no gage-height record, which are fair. Diversions above station for irrigation.

Discharge, In second-feet, 1947-49 

1947-48

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

> b8

( )

Jan.

(»)

> b7

Feb.

> b7

(»)

-

-

Mar.

> be

*b8,3

b9.4

b!2

b9.1

b6.8

fS.O

f7.9

11

14

9.1

7.2

6.8

7.9

12

11

7.5

Apr.

8.7

10

9.1

9.1

8.3

8.7

7.9

6.8

7.5

13

14

9.4

8.7

8.7

13

27

33

25

21

18

29

53

32

22

22

21

15

18

27

22

-

May

20

15

13

11

15

f!6

34

23

15

13

9.8

9.4

11

f27

f53

f60

fl!6

fl!2

f!35

f!44

f98

f!42

fllS

allO

a!30

a!20

allO

a!05

a!20

allO

a 100

June

157

193

155

127

110

87

91

79

82

63

56

50

41

40

36

32

27

30

32

33

50

58

42

41

41

46

47

46

35

24

-

July

25

27

25

18

13

9.4

8.7

7.9

7.5

7.2

a7.2

a7.0

a6.8

a6.6

aS.4

a6.2

a6.0

a5. 8

a5. 6

a5.4

aS.l

a4.9

a4.6

a4.4

a*. 2

a4.0

a3.8

a3.6

3.4

3.9

3.2

Aug.

3.6

3.4

2.6

30

13

7.9

5.8

5.6

4.5

3.9

3.4

3.6

3.0

2.6

2.5

2.3

2.5

2.8

2.5

1.9

2.1

3.2

3.0

2.5

2.3

2.3

2.5

1.9

1.6

1.7

2.1

Sept.

2.8

2.8

2.8

2.8

2.3

1.5

1.6

1.5

1.1

1.3

1.1

1.1

1.1

1.2

1.0

1.5

1.7

1.5

1.6

1.6

1.5

1.0

.9

.7

.6

.6

.7

2.1

1.7

1.9

-

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for nearby streams.

b Stage-discharge relation affected by Ice.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
288 GREEN RIVER BASIN

Discharge, in second-feet, of Perron Creek near Castle Dale, Utah, 1947-49 Continued

1948-49

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

1.6

1.7

1.5

2.1

3.8

3.5

2.3

2.6

3.6

2.6

3.5

2.6

2'. 6

2.8

3.3

3.4

3.4

3.9

5.6

4.7

4.2

3.2

3.4

3.4

3.4

3.6

4.2

14

9.1

9.4

9.8

Nov.

7.9

8.3

8.3

7.5

5.6

6.1

7.5

6.1

5.3

6.8

8.7

6.8

7.2

7.3

 7.9

8.3

8.7

5.3

7.2

7.9

9.4

9.1

9.4

9.4

8.3

7.3

4.7

7.3

7.5

7.0

-

Dec.

( )

7.0

"

' 6.0

Jan.

C)

5.0

Feb.

' 5.0

> 6.0

'

7.0

7.2

7.4

*8.0

9.0

13

13

14

_

-

Mar.

16

17

18

19

19

18

18

19

20

21

23

23

23

25

28

 36

27

33

23

22

17

18

18

14

13

12

11

14

15

15

15

Apr.

20

19

15

13

14

17

26

31

16

24

24

39

41

45

33

40

63

76

83

79

73

87

151

155

d!56

d!65

d!75

186

160

155

-

Hay

89

144

205

186

140

108

83

59

46

68

140

160

98

131

305

149

140

133

80

66

55

48

47

66

138

196

186

198

198

223

168

June

144

112

104

270

193

168

166

332

266

271

389

372

361

339

318

333

333

420

339

376

236

308

198

175

140

110

87

65

56

40

-

July

34

34

47

53

52

53

55

41

32

35

35

27

24

19

16

16

19

17

14

12

10

8.7

11

13

11

9.4

8.7

7.5

5.3

5.0

6.1

Aug.

6.4

8.3

12

8.7

7.5

5.8

6.8

100

39

29

18

15

14

12

10

11

13

12

9.1

7.2

7.2

8.3

7.9

9.4

13

11

9.1

8.3

5.8

5.8

5.8

Sept.

5.8

5.8

5.8

4.4

3.6

2.6

2.5

2.6

4.4

7.5

5.3

4.2

7.9

7.2

5.8

5.8

5.3

5.0

5.3

4.4

4.2

a3.9

a3.7

a3.6

a3.7

a4.4

a4.4

36.0

a!7

a!2

-

 Winter discharge, measurement made on this day.

a No gage-height record; discharge computed on basis of 2 discharge measurements and records for 

nearby streams.

d Doubtful gage-height record; discharge computed on basis of 1 discharge measurement and records 

for nearby streams.

Note.- Stage-discharge relation affected by ice Nov. 30 to Mar. 14 (no gage-height record for part 

of period).

Monthly discharge, in second-feet, 1947-49

Month

December 1947 ..............................

Calendar year .......................

March .,.....,.,,. . .

May. ............................ ...........

September. ..................................

The period. ...............................

October 1948 ....................._........

December. ...................................

Calendar year 1948 .......................

May.........................................

September ...................................

Water year 1948-49 .......................

Seoondfoot-days

248

-

1 951

45.6

-

201

6,333.3

2,189

6,611

730.7

434.4

163.1

15,565.3

Maximum

_

_

-

-

_

27

3.8

-

193

14

36

186

232

420

55

10O

17

420

Minimum

_

_

-

-

_

.6

-

.6

_

11

13 *46

40.

5,0

5.8

3.5

1.5

Mean

_

_

8.0

-

8.28

1.52

-

4.00

6.48

17.0

5.00

6.52

19.3

73.0

127

320

23.6

14.0

5.44

42.6

Runoff in 

acre-feet

_

_

492

-

466

4,200

3,870

509

262

90

11,770

247

399

12,370

307

362

1,190

4/340

7,840

13,110

1,450

862

324

30,880
DIRTY DEVIL RIVER BASIN 289

Fremont River near Bicknell, Utah

Location.- Water-stage recorder, lat. 38°18', long. 111°31', in NE£ sec. 7, T. 29 S., R. 4 

K., buO feet upstream from highway bridge, 1,500 feet downstream from Torrey Canal and 

Mill ditch, 1 mile downstream from Government Creek, and 3 miles southeast of Bicknell. 

Staff gage at same site and datum prior to June 28, 1949.

Drainage area.- 776 square miles.

Records available.- May 1909 to December 1912 (published as Fremont River near Thurber) Octooer 193Y to September 1949 (1944-46, fragmentary).

Average discharge.- 12 years (1909-12, 1937-43, 1946-49), 95.3 second-feet.

Extremes.- Maximum observed discharge during year, 193 second-feet Apr. 18; minimum daily, 

by second-feet Oct. 5-7.

1909-12, 1937-49: Maximum discharge, 1,200 second-feet about Apr. 5, 1942 (gage height, 

5.8 feet, present site, from floodmarks), from rating curve extended above 700 secondfeet; minimum observed, 18 second-feet June 2,4, 13-15, 17, 18, 1912.

Remarks. - Records good except those prior to June 28, which are fair. Records include flow of 

Torrey Canal and Mill ditch and represent flow of Fremont River above these diversions. 

Discharge computed by combining flow in canals with that'in river below canals. Gages 

read once daily prior to June 28, Several diversions above station for- irrigation. 

Flow affected by Fish Lake, Johnson, and Forsythe Reservoirs.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

a72 

80 

69 

63 

59

59 

59

64 

64 

64

a64 

a64 

64 

a64 

64

64 

64 

a66 

a67 

a69

a70 

a72 

a73 

a75 

a76

a78 

a79 

a81 

a82 

a84 

a85

Nov.

a87 

a89 

a 90 

a92 

a93

94 

a93 

a93 

a92 

*92

a 100 

110 

alOS 

a!05 

a 103

alOl 

a99 

97 

a96 

a95

94 

a 95 

a96 

97 

a97

a97 

97 

alOO 

alOS 

a!06

Dec.

a!08 

alll 

al!4 

al!6 

a!18

al!9 

*b!20 

a!18 

al!6 

al!4

al!2

allO 

a 108 

a!06 

a!04

a!02 

blOO 

a99 

a 98 

a96

a 95 

a94 

a 92 

a 91 

a 90

a88 

a86 

a84 

a82 

b80 

b80

Jan.

a 80 

b80 

a85 

*b90 

a88

bSS 

a88 

a 91 

a 94 

a 97

99 

> a99

Feb.

a 99 

99 

*119 

al!7 

al!4

alll 

alOS 

alOS 

102 

99

a!02 

a!04 

a!07 

109 

alOS

102 

99 

alOl 

a!04 

a!06

109 

a!09 

109 

allO 

112

112 

al!4 

116

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

h.. .....................................

1. ......................................

ter year 1948-49 .....................

Mar.

112 

110 

155 

126 

140

116 

129 

116 

119 

129

119

116 

116 

1Z6 

126

129 

122 

122 

119 

112

109 

105 

116 

112 

112

109 

109 

126 

129 

155 

126

Apr.

119 

119 

137 

135 

176

146 

140 

135 

119 

119

116 

116 

112 

112 

109

a!32 

155 

193 

159 

163

159 

148 

172 

159 

152

184 

126 

93 

93 

83

Second - 

foot -days

2,158 

2,911 

5,151

35,531

2,957 

3,005 

5,723 

4,077 

2,292 

2,185 

2,192 

2,280 

2,462

55,389

May

72 

a73 

a75 

76 

72

75 

77 

a78 

a75 

a77

a88 

a80 

a78 

a71 

a75

a76 

a73 

a72 

a72 

a 70

a66 

a 74 

a71 

a71 

71

74 

75 

75 

70 

71 

75

Maximum

85

110 

120

490

119

140 

193 

88 

87 

79 

79 

110

193

June

64 

a72 

a79 

87

a84

8Z 

75 

74 

78 

77

a76 

74 

72 

68 

65

67 

62 

84 

70 

68

68 

67 

75 

78

70

70 

a71 

70 

72 

68

July

68 

71 

78 

79 

79

79

78 

70 

70 

70

68 

66 

66 

69 

68

69 

69 

69 

69 

68

66 

68 

75 

75 

70

69 

70 

65 

67 

73 

75,

Minimum

59 

87

80

58

99. 

10S 

83 

66 

,62 

65 

69 

75

59

Aug.

73 

74 

70 

69 

71

74 

75 

78 

78 

75

71 

71 

72 

71 

70

70 

70 

72 

71 

71

71 

71 

74 

74 

79

76 

76 

78 

79 

78 

78

Mean

69.6 

97.0 

102

97.1

95.4 

107 

120 

156 

75.9 

72.8 

70.7 

73.5 

82.1

91.5

Sept.

78 

78 

78 

78 

80

79 

82 

82 

85 

88

85 

78 

79 

82 

83

83 

80 

79 

80 

78

76 

75 

79 

79 

79

80 

81 

92 

110 

96

Runoff In 

acre-feet

4,280 

5,770 

6,250

70,480

5,870 

5,960 

7,380 

8,090 

4,550 

4,330 

4,350 

4,520 

4,880

66,230

* Winter discharge measurement made en this day.

a No gage-height record; discharge computed on basis of Interpolation, weather records 

for nearby stations, 

b Stage-discharge relation affected by ice.

and records
290

ESCALANTE RIVER BASIN 

Escalante River near Escalante, Utah

Location.- Water-stage recorder, lat. 37°46', long. 111°34', in NEv sec. 9, T. 35 S., R. 3 

E., 150 feet below Pine Creek and 2 miles northeast of Escalante.

Drainage area.- 315 square miles.

Records available.- August 1909 to April 1913. October 1942 to September 1949.

Average dischargeT- 10 years (1909-12, 1942-49), 18.9 second-feet.

.Extremes. - Maximum discharge during year, 2,790 second-feet Sept. 28 (gage height, 7.34 

feet), by slope-area method; minimum, 2.8 second-feet Nov. 26.

1909-13, 1942-49: Maximum discharge, that of Sept. 28, 1949; minimum, 0.1 secondfoot Aug. 20, 1946.

Revisions - The figures of maximum discharge f or some water years have been revised, 

as shown in the following table. They supersede those published in the water-supply 

papers indicated.

Water-Supply 

Paper

1059.. ......

1059. .......

1059.... ....

Water 

year

1943

1944

1945

Date

Aug. 11

Gage height 

(feet)

5.20

Discharge 

(second- feet)

1,750

1 970

840

Remarks.- Records poor. Many diversions above station for irrigation.

Revisions.- The daily discharge for net. IE, 1943, has been revised to 258 second-feet,

superseding figure publisher! in Water-Supply Paper 1059. Resulting changes in monthly

and yearly discharge are as folluws:

Month

Calendar year 1943.. 

Water year 1943-44. .

Secondfoot-days

4,973.0 

9,250.7

Maximum

258 

258

Minimum

5.6

1.2 

1.4

Mean

17.8

13.6 

25.3

Runoff in 

acre-feet

1,090

9,850

18,350

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.4 

3.2 

3.2 

4.0 

3.8

3.4 

3.6 

4.4 

5.0 

5.0

5.3 

5.3 

5.3 

5.6 

4.6

4.2 

4.0 

4.4 

4.4 

4.4

4.4 

4.4 

4.0 

4.0 

4.4

5.0 

4.4 

8.4 

5.6

12 

21

Nov.

11 

7.1 

9.2 

9.2 

7.7

7.4 

10 

6.2 

8.4 

12

14 

11 

10 

10 

10

10 

9.6 

10 

9.2

11

10 

10 

12 

10 

10

8.0 

10 

9.6 

8.0 

12

Dec.

13 

13 

16 

10

21

11 

14 

12 

*12 

14

17

15 

15 

14 

13

15 

16 

15 

18 

18

17 

16

t

> b!2

Jan.

1 bl2 

C)

' a!6 

, a!5

Feb.

(*)

1 a!5

^ a20 

^ a25 

> a32

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948

h.............. .........................

ter year 1948-49 .......................

Mar.

a34 

a35 

a33 

a32 

a33

*31 

22

16 

14 

19

19 

16 

17 

18 

18

16 

17 

2Z 

23 

24

19 

22

19 

16 

14

14 

16 

22 

22

21 

19

Apr.

19 

13 

16 

23 

26

28 

26 

34 

28 

32

30 

34 

33 

30 

30

31 

35 

37 

32 

32

30 

23 

23 

26 

24

24 

24 

23 

29 

54

Secondfoot-days

164.1 

292.6 

433

4.791.7

465 

563 

663 

849 

1,157 

2,577 

451.5 

235. 6 

515.6

8,366.4

May

51 

44 

26 

28 

25

23

19 

19 

20 

26

32 

36 

34 

51 

70

46 

37 

33 

23 

23

23 

24 

29 

32 

40

42 

43 

60 

62 

68 

68

Maximum

21

14

96

35 

54 

70 

194 

31 

20 

176

194

June

66 

69 

65 

93 

95

98 

82 

81 

88 

118

148 

123 

98 

79 

64

65 

88 

165 

194 

a!50

allO 

a70 

69 

73 

62

49 

41 

28 

24 

22

July

21 

24 

21 

19 

15

18 

31 

22

14 

24

28

18 

18 

16

12

10 

10 

9.6 

9.6

12

10 

9.2 

10 

10 

10

9.2 

8.8 

8.4 

8.0 

8.0 

7.7

Minimum

3.2 

6.2

2.0

14 

13 

19 

22 

7.7 

5.0 

4.6

3.2

Aug.

7.7 

9.2 

7.4 

7.4 

8.0

6.5 

7.7 

17 

20 

8.8

7.4 

7.7 

7.1 

6.2 

6.2

6.2 

6.8 

7.7 

7.7 

7.1

5.9 

5.9 

6.2 

6.8 

5.9

5.3 

5.0 

5.0 

5.3 

6.5 

8.0

Mean

5.29 

9.75 

14.0

13.1

15.0 

20.1 

21.4 

28.3 

37.3 

85.9 

14.6 

7.60 

17.2

22.9

Sept.

8.8 

6.8 

4.6 

4.8 

4.8

5.0 

4.6 

4.8 

6.5 

7.7

6.2 

7.4

31 

13 

10

11 

11 

11 

9 2 

6.8

7.1 

7.7 

8.8

10 

10

11 

14 

176 

f68 

28

Runoff In 

acre-feet

325 

580 

859

9,500

922 

1,120 

1,320 

1,680 

Z,290 

5,110 

896 

467 

1,020

16,590

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of 1 discharge measurement, weather records, 

and records for nearby streams.

b Stage-discharge relation affected by ice.

f Fragmentary gage-height record; discharge computed on basis partly estimated gage heights.
SAN JUAN RIVER BASIN 291

San Juan River near Pagosa Springs, Colo.

Location. Water-stage recorder lat. 37°22'05", long. 106°53'40", in SE^ sec. 12, T. 36 

 N., R. 1. W., a quarter of a mile upstream from private highway bridge, half a mile

upstream from West Pork, and 9.5 miles northeast of Pagosa Springs. Datum of gage is

7,597.63 feet above mean sea level, datum of 1929.

Drainage area.- 86.9 square miles.

Records available.- May 1935 to September 1949.

Average discharge.- 14 years, 135 second-feet.

Extremes.- Maximum discharge during year, 1,270 second-feet June 18 (gage height, 4.11 

1'eet); minimum daily, 10 second-feet Jan. 30.

1935-49: Maximum discharge, 2,070 second-feet May 12, 1941 (gage height, 4.84 

feet), from rating curve extended above 1,300 second-feet; minimum daily, 5.5 secondfeet Dec. 20, 1939.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

a

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

23 

21 

19 

18 

25

22 

19 

18 

18 

18

17 

16 

16 

16 

19

18 

16 

16 

16 

22

21 

19 

18 

17 

16

16 

16 

21 

19 

ZZ 

Z2

Nov.

22 

25 

25 

25 

*19

19 

19 

18 

12 

13

14

15 

15 

16 

16

16 

15 

13

11 

15

13 

15 

15

15 

15

13 

1Z 

11 

15 

16

Dec.

*16 

16 

15 

11 

12

13 

13 

13 

13 

1Z

12

12 

12 

13 

13

12 

12 

12 

11 

11

12 

12 

1Z 

11 

11

11 

12

12 

11 

11 

12

Jan.

12

12 

11 

11 

11

11 

1Z 

1Z 

12 

12

*13 

13 

12 

11 

11

11 

11 

11 

11 

11

12 

1Z

11 

11 

12

12 

12 

12 

11 

10 

11

Feb.

11 

12 

12 

12 

12

11 

11 

*1Z 

12 

12

12 

12 

12 

12 

11

12 

12 

13 

13 

13

13 

14 

17 

16

15

14 

13 

14

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

14 

14 

18 

18 

19

16 

18 

16 

16 

*16

17

18ia

17

21

29 

36 

40 

47 

51

42 

44 

44

39 

35

31 

28 

33 

31 

30 

28

Apr.

29 

27 

24 

24 

29

40 

51 

56 

50 

46

48 

71 

99 

117

129

171 

240 

250

180 

185

210 

330 

419 

496 

529

534 

436 

446 

534 

485

Secondroot-days

580 

483 

381

58,368

357 

355 

844 

6,285 

13,819 

17,855 

7,574 

1,709 

953

51,195

May

392 

419 

490 

480 

350

245 

270 

167 

205

305

474 

540 

463 

534 

562

496 

408 

392 

340 

370

330 

320 

355 

452 

529

805 

643 

446 

739 

631 

667

Maximum

25 

25 

16

1,180

13 

17 

51 

534 

805 

894 

408 

94 

74

894

June

512 

436 

402 

490 

679

529 

414 

350 

360 

507

613 

715 

727 

763 

781

805 

829 

894 

848 

673

721 

763 

757 

697 

424

441 

474 

452 

380 

419

Minimum

July

408 

350 

355 

325 

330

355 

325 

280 

275 

250

402 

386 

345 

280 

260

240 

210 

195 

200 

190

171 

171 

175 

195

171

163 

135 

120 

108 

103 

101

16 

11

11

11

10 

11 

14 

24 

167 

350 

101 

27 

22

10

Aug.

94 

94 

92

81 

77

77 

80 

80 

76 

86

70 

63 

58 

54 

49

47 

47

46 

42 

39

36 

36 

36 

36 

34

34 

31 

30 

29 

28 

27

Mean

18.7 

16.1 

12.3

159

11.5 

12.7 

27.2 

210 

446 

595 

244 

55.1 

31.8

140

Sept.

30 

32 

29 

26 

25

23 

22 

22 

22 

30

35 

39 

54 

54 

39

34 

30 

29 

27 

25

25 

23 

24 

26 

27

25 

25 

25 

74 

52

Runoff in 

acre-feet

1,150 

958 

756

115,800

708 

704 

1,670 

12,470, 

27,410 

35,410 

15,020 

3,390 

1,890

101,500

Peak discharge (base, 600 sec.-ft.).- May 15 (8:30 a.m.) 781 sec.-ft.j May 29 (10 p.m.) 894 sec.- 

ft.; June 5 (3 a.m.] 848^sec.-ft .; June 18 (7:30 p.m.) 1,270 sec.-ft. ; June 23 (8:30 p.m.) 1,040 

sec.-ft.; July 11 (2 a.m.) 697 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 9 to Feb. 21.
292 SAN JUAN RIVER BASIN

San Juan River at Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°15'55", long. 107°00'40", in Sj sec. 13, T. 35 N., 

 K. y W., under lower bridge, 200 feet from U. S. Highway 160 at town of "Pagosa Springs. 

Datum of gage is 7,052.04 feet above mean sea level, datum of 1929.

Drainage area.- 298 square miles.

Records available.- January 1911 to November 1914, May 1935 to September 1949.

Average discharge.- 14 years (1935-49), 405 second-feet.

Extremes.- Maximum discharge during year, 5,420 second-feet June 19 (gage height, 7.97

reet ), from rating curve extended above 4,500 second-feet; minimum daily, 28 second-feet 

Nov. 28.

1911-14, 1935-49: Maximum discharge, 5,790 second-feet May 13, 1941, from rating 

curve extended above 4,500 second-feet; maximum gage height, that of June 19, 1949; 

minimum daily discharge, 19 second-feet Dec. 10, 1945.

Maximum stage known, 17.8 feet Oct. 5, 1911 (discharge, about 25,000 second-feet).

Remarks.- Records good. Diversions above stations for irrigation.

Rating tables, water year 1948-49 (gage height, In feet,

and discharge, In second-feet) 

(Shlftlngrcontrol method used Oct. 1-21, Feb. 1 to Mar. 16)

Oct. 1 to June 18 June 19 to Sept. 3O

1.8 26 2.6 162 5.3 1,640 2.8 48 3.5 185 5.2 1,130 

2.0 45 2.9 255 6.1 2,500 3.O 74 3.8 295 5.8 1,730 

2.1 58 3.6 510 6.9 3.57O 3.1 90 4.3 52O 6.4 2,55O 

2.3 9E 4.1 740 7.5 4,540 3.3 130 4.6 690 7.4 4,300 

2.4 112 4.7 1,140

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

69 

64 

55

50 

60

64 

55 

50 

49 

46

44 

43 

43 

43 

50

48 

45 

44 

52 

64

64 

60 

55 

49 

49

46 

49 

69 

63 

72 

74

Nov.

71 

78 

83 

83 

61

55 

63 

57 

38 

45

55 

50 

50 

54 

55

54 

57 

43 

33 

53

40 

45 

52 

48 

55

40 

38 

28 

41 

43

Dec.

43 

42 

41 

39 

31

40 

37 

42 

40 

¥>

41 

41 

41 

43 

44

39 

42 

42 

35 

39

42 

44 

43 

39 

38

48 

50 

45 

42 

41 

45

Jan.

45 

43 

40 

40

40

42 

45 

45 

43 

44

46 

48 

46 

48 

44

41 

40 

41 

41 

42

42 

43 

43

40 

41

43 

45 

43

40 

36 

37

Feb.

38 

38 

39 

39 

38

38 

38 

38 

38 

38

39 

39 

39 

38 

38

37 

37 

38

40 

40

42 

43 

44 

50 

53

52 

50 

49

Month

Octo 

Hove 

Dece

Ca

Janu 

Febn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Lender year 1943

ter year 1948-49 ...............

Mar.

48 

43 

45 

50 

55

54 

57 

57 

53 

52

55 

61 

58 

54 

72

90 

117 

136 

162 

186

157 

165 

149 

119 

102

92 

90 

102 

104 

90 

85

Apr.

88 

81 

78 

SI 

110

192 

283 

356 

308 

283

339 

502 

627 

663 

668

730 

842 

895 

788 

782

824 

1,050 

1,280 

1,400 

1,480

1,520 

1,370 

1,320 

1,480 

1,450

Secondfoot-days

1,688 

1,568 

1,279

171,385

1,317 

1,150 

2,760 

21,870 

45,057 

73,910 

28,944 

4,809 

2,416

186,768

Peak discharge (base, 1.51O sec. -ft.}.- Apr. 25 flO:3O

May

1,320 

1,410 

1,600 

1,480 

1,280

1,230 

1,060 

923 

944 

1,130

1,400 

1,570 

1,390- 

1,430 

1,800

1,920 

1,520 

1,380 

1,280 

1,270

1,120 

1,090 

1,160 

1,340 

1,560

1,900 

1,980 

1,800 

1,740 

1,990 

2,040

Maximum

74 

83 

50

4,090

48 

53 

186 

1,520 

2,040 

4,380 

1,790 

311 

179

4,380

June

1,600 

1,400 

1,430 

1,670 

2,070

2,130 

2,020 

1,600 

1,580 

2,030

2,270 

2,450 

2,480 

2,780 

2,820

3,080 

3,330 

4,380 

4,150 

3,530

3>170 

2,950 

2,930 

3,250 

2,370

2,500 

2,260 

2,030 

1,850 

1,800

July

1,790 

1,730 

1,650 

1,540 

1,420

1,290 

1,660 

1,270 

1,170 

1,180

1,540 

1,250 

1,090 

978 

851

739 

704 

618 

588 

565

520 

500 

505 

648 

618

582 

485 

420 

376 

344 

323

Aug.

303 

295 

311 

255 

227

213 

213 

248 

216 

230

185 

164 

148 

140 

132

124 

122 

122 

112 

106

102 

96 

94 

92 

85

87 

85 

80 

77 

74 

71

Minimum Mean

43 54.5 

28 52.3 

31 41.3

28 . 468

36 42.5 

37 41.1 

43 89.0 

78 729 

923 1,453 

1,400 2,464 

323 934 

71 155 

56 80.5

28 512

Sept.

77 

84 

77 

70 

67

67 

64 

61 

60 

70

80 

122 

102 

150 

94

80 

74 

71 

68 

64

63 

61 

56 

64 

63

61 

60 

59 

179 

148

Runoff In 

acre-feet

3,350 

3,110 

2,540

340,000

2,610 

2,280 

5,470 

43,380 

89,370 

146,600 

57,410 

9,540 

4,790

370,400

a.m.) 1,810 seo.-ft.j May 2 (12 p.m.) 1,760

sec.-ft.; May 16"(1 a.m.) 2,160 sec.-ft.; May 31 (7:3O a.m.) 2,150 sec.-ft.; June 6 (2:3O a.m.) 

2,380 sec.-ft.; June 19 (12:3O a.m.) 5,420 sec.-ft.; July 7 (2:30 p.m.) 2,370 sec.-ft.
SAN JUAN RIVER BASIN 293

San Juan River at Rosa, N. Mex.

Location.- Water-stage recorder, lat. 37°00'20", long. 107°24'10", in sec. 20, T. 32 N., R. 

5 W., about 75 feet upstream from highway bridge, a quarter of a mile downstream from 

Piedra River, and 1 mile north of Rosa.

Drainage area.- 1,990 square miles. 

Records available.- October 1930 to September 1949 in reports of Geological Survey. Septemoer isau to December 1931 in reports of State engineer.

Average discharge.- 29 ^ears (1920-49), 1,199 second-feet.

Extremes.- Maximum discharge during year, 11,800 second-feet June 19 (gage height, 7.14 

reet); minimum daily, 80 second-feet Dec. 7, Jan. 4, 5.

1930-49: Maximum discharge, 17,200 second-feet Apr. 23i 1942 (gage height, 8.50 

feet), from rating curve extended above 11,000 second-feet by logarithmic plotting; 

minimum daily, 65 second-feet Dec. 11, 1945.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for December, January, and February, and those above 

4,uuu second-feet, which are fair. Diversions above station for irrigation. Records 

of suspended sediment loads and water temperatures are given in Water-Supply Paper 1163.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

205 

205 

202 

178 

168

188 

202 

183 

168 

160

155 

155 

155 

152 

152

152 

148 

138 

152 

160

186 

178 

160 

160 

152

152 

162 

456 

477 

266 

276

Nov.

272 

251 

260 

254 

230

178 

178 

202 

165 

106

138 

178 

158 

170 

168

183 

180 

180 

114 

119

168 

119 

129 

155 

191

145 

108 

91 

91 

96

Dec.

94 

106 

110 

93 

85

85 

80 

94 

106 

123

123 

136 

148 

155 

158

158 

136 

127 

134 

118

114 

116 

119 

132 

123

114 

127 

141 

*134 

119 

119

Jan.

125 

119 

bloO 

a 80 

a 80

alOO 

«119 

150 

172 

172

186 

183 

*210 

219 

210

b200 

b!80 

a!60 

a!60 

a!80

a 200 

a200 

alSO 

*170 

148

136 

129 

123 

118 

119 

123

Peb.

138 

138 

138 

129 

125

123 

a!30 

a!30 

a!20 

a!30

143 

138 

134 

143 

155

155 

155 

168 

183 

194

205 

224 

257 

301 

304

260 

279 

254

* Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Hay

June 

July 

Augu 

Sept

Ha

mber. ...................................

mber. ............_.......-..._..........

lendar year 1948

ter year 1948-49 .......................

Mar.

230 

227 

236 

294 

380

448 

493 

472 

421 

440

554 

614 

567 

563 

680

963 

1,180 

1,100 

1,130 

1,290

1,060 

1,170 

1,140 

739 

614

563 

549 

761 

901 

642 

536

Apr.

638 

536 

514 

766 

981

1,450 

1,840 

2,620 

2,230 

1,950

1,840 

2,550 

3,150 

3,400 

3,320

3,320 

3,860 

4,360 

3,760 

3,670

3,580 

4,250 

5,020 

5,250 

5,370

5,620 

4,900 

4,250 

4,900 

5,080

Secondfoot-days

6,003 

4,977 

3,727

444,190

4,751 

4,953 

20,957 

94,915 

13*, 700 

166,540 

71,391 

15,626 

7,673

536,213

May

4,360 

4,360 

5,130 

5,020 

4,150

3,860 

3,400 

2,990 

2,920 

3,490

5,020 

5,250 

4,900 

4,360 

5,130

5,500 

4,790 

4,360 

3,860 

3,760

3,240 

3,070 

3,150 

3,670 

4,150

5,020 

5,370 

5,370 

4,900 

5,130 

5,020

Maximum

477 

272 

158

8,230

219 

304 

1,290 

5,620 

5,500 

9,900 

4,250 

1,270 

532

9,900

June

4,460 

3,760 

3,860 

4,050 

4,790

5,130 

4,790 

4,250 

3,960 

4,790

5,130 

5,370 

5,370 

5,880 

6,150

6,420 

6,990 

8,230 

9,900 

7,290

6/840 

6,420 

6,420 

7,140 

5,500

5,250 

4,900 

4,790 

4,460 

4,250

July

4,250 

4,150 

3,960 

3,670 

3,400

3,070 

3,490 

2,990 

2,620 

2,840

3,320 

2,990 

2,620 

2,420 

2,230

1,900 

1,740 

1,640 

1,500 

1,450

1,410 

1,250 

1,450 

1,900 

2,000

1,740 

1,410 

1,210 

1,030 

901 

840

Minimum

138 

91 

80

80

80 

120 

227 

514 

2,920 

3,760 

840 

216 

188

80

Aug.

783 

755 

840 

811 

677

641 

702 

802 

1,270 

713

623 

536 

489 

460 

428

402 

484 

421 

387 

351

334 

317 

317 

291 

282

272 

272 

263 

248 

233 

216

Mean

194 

166 

120

1,214

153 

177 

676 

3,164 

4,345 

5,551 

2,303 

504 

256

1,469

Sept.

202 

230 

269 

227 

219

208 

205 

191 

188 

199

263 

358 

456 

532 

405

311 

279 

248 

236 

230

219 

208 

202 

216 

256

202 

194 

194 

301 

245

Runoff in 

acre-feet

11,910 

9,870 

7,390

881,000

9,420 

9,820 

41,570 

188,300 

267,200 

330,300 

141,600 

30,990 

15,220

1,064,000

Peak discharge (base, 4/000 sec.-ft. J_. - Apr. 26 (4 a.m.) 6,560 sec. -ft.; May 3 (7 a.m.) 5,750 sec.-

ft.; May 12 (6 p.m.) 5,886 sec.-ft.; May 30 (9 a.m.) 5,500 sec.-ft.; June 19 (6 a.m.) 11.800 sec.-ft.; 

June 24 (9 a.m..) 8,550 sec.-ft.; July 7 (-lOtlS a.m.) 4/680 sec.-ft.; July 11 (10:30 a.m.) 4,150 sec.-ft.

* Winter discharge measurement msde on this day.

a No gage-height record; discharge computed on basis of weather records, recorder trace, discharge 

measurements, and records for main stem and tributary stations.

b Stage-discharge relation affected by fee.
294 SAN JUAN RIVER BASIN 

San Juan River near Blanco, N. Mex.

Location.- Water-stage recorder, lat. 36°43'50", long. 107°48'50", in NE^ sec. 18, T. 29 N., 

R. y W., half a mile upstream from highway bridge, 1 mile upstrean from Canyon Largo, 

and lj miles east of Blanco.

Drainage area.- 3,560 square miles.

Records available.- December 1908 to October 1910 (gage heights only January to October 

 1910) and OcToEer 1930 to September 1949 in reports of Geological Survey. December 1908 

to December 1909 and June 1927 to December 1931 in reports of State engineer.

Average discharge.- 21 years (1928-38), 1,504 second-feet.

Extremes.- Maximum discharge during year, 14,000 second-feet June 19 (gage height, 7.30 

feet) ; minimum daily, 120 second-feet Jan. 3.

1930-49: Maximum discharge, 23,300 second-feet May 14, 1941 (gage height, 8.46 feet); 

minimum daily, 17 second-feet Aug. 18, 24, 25, 1939. Maximum stage known, 20 feet Oct. 5 

or 6, 1911.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. Records of chemical analysis, 

water temperatures, and suspended sediment loads for the water year 1949 are given in 

Water-Supply Paper 1163.

Revisions.- W 1119: Drainage area.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

459 

356 

348 

338 

317

324 

331 

345 

317 

287

274 

259 

256 

241 

227

250 

200 

194 

216 

265

259 

244 

247 

247 

262

294 

294 

760 

1,300 

569 

438

Nov.

417 

363 

338 

359 

352

320 

253 

232 

238 

207

170 

187 

224 

202 

200

205 

213

202 

172 

145

145 

162 

160 

205 

244

224

138 

138 

140 

162

Dec.

158 

194 

213 

192 

165

177 

170 

179 

192 

197

213 

218 

221 

235 

241

207 

221 

227

147 

167

177 

210 

235 

235 

153

244 

307 

284 

244 

200 

200

Jan.

b!80 

b!60 

b!20 

*a!30 

a!40

a!80 

a210 

a240 

a270 

a290

a300 

320 

363 

569 

401

230 

*b200 

b210 

b230 

b250

b300 

b350 

327 

294 

*297

307 

284 

259 

b240 

b220 

b200

Feb.

b200 

b210 

*b230 

b200 

a220

a200 

a200 

b200 

b200 

*b240

b270 

b320 

b300 

*b300 

b350

b400 

b410 

b410 

b430 

b450

468 

463 

557 

968 

1,010

662 

569 

775

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

656 

594 

*775 

1,010 

1,120

al,300 

al , 500 

al , 300 

al,100 

1,120

1,320 

1,600 

1,460 

1,360 

1,460

1,700 

2,120 

1,960 

1,800 

2,080

1,700 

1,700 

1,650 

1,460 

al , 400

al,200 

al , 000 

al.100 

al,300 

al,200 

1,080

Apr.

1,160 

al.OOO 

a900 

al,100 

1,460

1,650 

2,140 

2,880 

3,690 

2,660

2,260 

2,930 

3,930 

4,120 

4,120

4,020 

4,530 

5,180 

4,850 

4,420

4,320 

4,850 

5,770 

6,020 

6,270

6,670 

6,140 

5,410 

5,770 

6,020

Secondfoot-days

10,718 

6,717 

6,423

597,267

8,071 

11,212 

42,125 

116,240 

159,900 

203,330 

97,660 

25,016 

13,061

700,473

May

5,650 

5,410 

6,140 

6,140 

5,650

4,960 

4,640 

4,020 

3,660 

4.O2O

5,890 

6,270 

6,270 

5,410 

5,770

6,270 

5,770 

5,410 

4,740 

4,320

4,020 

3,660 

3,580 

4,020 

4,530

5,180 

5,650 

6,020 

5,530 

5,650 

5,650

Maximum

1,300 

417 

307

11,000

569 

1,010 

2,120 

6,670 

6,270 

12,800 

5,400 

1,900 

745

12,800

June

5,410 

4,530 

4,120 

4,120 

4,850

5,300 

5,180 

4,640 

4,120 

4,640

5,530 

5,770 

6,270 

6,950 

7,230

7,670 

8,130 

8,980 

12,800

10,500

9,320 

8,620 

8,450 

9,150 

8,130

7,520 

6,810 

6,540 

6,400 

5,650

July

a5,400 

a5,300 

a5,200 

a4,900 

4,640

4,220 

4,120 

a4,300 

a3,700 

a4,500

4,850 

4,320 

3,750 

3,410 

3,020

2,590 

2,260 

2,140 

1,910 

1,860

1,800 

1,800 

2,020 

2,460 

2,950

2,390 

1,960 

1,700 

1,550 

1,360 

1,280

Minimum

194 

138 

147

138

120 

200 

594 

900 

3,580 

4,120 

1,280 

366 

294

120

Aug.

,200 

,160 

,120 

,240 

,120

,000 

,070 

,240 

,900 

,280

1,080 

954 

881 

799 

751

705 

717 

787 

635 

569

522

503 

463 

446 

446

42^ 

421 

425 

405 

386 

366

Mean

346 

224 

207

1,632

260 

400 

1,359 

3,875 

5,158 

6,778 

3,150 

807 

435

1,919

Sept.

363 

363 

393 

405 

382

374 

363 

476 

374 

294

3S3 

503 

662 

694 

745

555 

494 

463 

434 

409

397 

370 

348 

334 

450

425 

386 

317 

320 

575

Runoff in 

acre-feet

21,260 

13,320 

12,740

1,185,000

16,010 

22,240 

83,550 

230,600 

317,200 

403,300 

193,700 

49,620 

25,910

1,389,000

Peak discharge (base, 5,000 sec. -ft.).- Apr. 18 (12 m.) 6,140 sec. -ft.; Apr. 26 (1 p.m.) 7,520

sec.-ft.; May 11 (8 p.m-T 7,090 sec.-ft.; May 28 (2 to 3 p.m.) 6,140 sec.-ft.; Ju 

14,000 sec.-ft.; July 11 (10 p.m.) 6,950 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of available recorder trace, discharge measurements, weather records, and records for main stem and tributary stations.

b Stage-discharge relation affected by Ice.
SAN JUAN RIVER BASIN " a ^ 

San Juan River at Farrnington, N. Mex.

Location.- Water-stage recorder, lat. 36°43', long. 108°13' , in SE^ sec. 17, T. 29 N., R 

13 W., 360 feet downstream from highway bridge, 4,000 feet downstream from Animas 

River, and 1 mile west of Farmington.

Drainage area.- 7,240 square miles.

Records available.- June 1904 to September 1906, September 1912 to December 1914, and 

October 193U to September 1949 in reports of Geological Survey. September 1912 to 

July 1918 and November 1921 to December 1931 in reports of State engineer.

Average discharge.- 26 years (1922-25, 1926-49), 2,538 second-feet.

Extremes.- Maximum discharge during year, 86,900 second-feet June 19 (gage height, 7.20 

i'eet) ; minimum daily, 270 second-feet Jan. 6.

1930-49: Maximum discharge, 32,800 second-feet Sept. 28, 1935 (gage height, 8.0 

feet, estimated), from rating curve extended above 18,000 second-feet; minimum daily, 

27 second-feet Aug. 22, 1939.

Maximum flood known occurred Oct. 6, 1911.

Remarks - Records good except those for periods of ice effect or doubtful or no gageheight record, which are poor. Diversions above station for irrigation.

Revisions.- W 1119: Drainage area.

Discharge, in second-feet, water year October 1948 to September 19^9

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

30 

31

Oct.

911 

820 

724 

724

760

736 

724 

700

667 

601

570 

560 

560 

510 

490

481 

418 

427 

490 

567

e900 

e700

e600 

e600 

e600

e700 

976 

1,460 

2,170 

1,530 

1,210

Nov.

846 

689 

623 

612 

634

645 

590 

560 

540 

520

510 

500 

550 

560 

550

540 

540 

550 

500 

490

445 

481 

510 

490 

550

540 

490 

490 

481

500

Dec.

463 

510 

520 

510 

560

550 

510 

490 

445 

500

490 

510 

520 

530 

570

490 

490 

530 

463 

454

472 

530 

645 

590 

500

481 

580 

623 

550 

472 

*472

Jan.

520 

570 

454 

b350 

b300

*b270 

b300 

b400 

b500

*b640 

b700 

b750 

b950 

b800

b600 

b500 

b500 

*b510 

530

550 

601 

667 

667 

623

634 

*540 

550 

530 

b450 

b400

Feb.

*b350

b400 

500 

510 

490

b450 

b450 

*b400 

b450 

b400

560 

580 

623 

612 

*550

560 

570 

634 

678 

748

924 

1,960 

2,170 

2,880 

2,830

2,070 

1,500

1,420

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Via

lendar year 1948

ter year 1948-49

Mar.

1,240 

1,050 

1,180 

1,670 

1,940

2,190 

2,190 

2.310 

1,830 

1,620

1,830 

2,130 

2,130 

1,940 

1,900

2,210 

2,640 

2,850 

2,710 

2,930

3,000 

2,480 

2,350 

2,050 

1,810

1,670 

1,480 

1,480 

1,680 

1,750 

1,500

Apr.

1 

1 

1 

1 

1

1 

2 

3 

4 

4

3

4

5 

5

5 

5 

6 

6 

5

5 

5 

7 

a8 

9

9 

9 

8 

8 

9

Secondfoot-days

23,886 

16,526 

16,020

1,013,536

16,976 

26,269 

61,740 

158,030 

243,910 

353,930 

157,860 

37,180 

16,675

1,129,002

Peak discharge (base, 8,000 sec. -ft.).- Apr. 26 (11 p.n

480 

670 

560 

670 

810

920 

820 

430 

250 

030

740

910 

990 

160 

340

520 

520 

070 

650 

880

520 

700 

480 

500 

050

280 

280 

600 

150 

050

May

8,600 

7,920 

8,600 

9,500 

8,820

7,480

6,850 

6,070 

5,520 

5,700

as , 200

8,600 

8,820 

7,920 

7,920

9,050 

8,820 

7,920 

7,050

6,850

6,260 

5,520 

5,520 

6,070 

7,250

8,150 

9,280 

10,200 

10,200 

9,750 

9,500

Maximum

2,170 

846 

645

17,300

950 

2,880 

3,000 

9,280 

10,200 

23,300 

9,160 

2,580 

958

23,300

June

9,050 

7,480

6,650 

6,850 

7 , 250

7,700 

7,700 

7,050 

6,850 

8,150

9,500 

10,200 

11,200 

12,300 

12,600

13,500 

14,400 

16,300 

23,300 

22,600

18,100 

15,700 

14,100 

15,900 

14,500

.12,000 

11,400 

11,100 

10,800 

9,700

July

9,160 

9,160 

9,160 

8,390 

7,900

6,980 

6,340 

6,550 

5,980 

7,200

7,430

6,980 

5,750 

5,030 

4,700

4,100 

3,620 

3,380 

3,160 

3,100

3,070

2,850 

3,260 

3,500 

4,540

3,960 

3,210 

2,750 

2,460 

2,180 

2,010

Aug.

1,820 

1,680 

1,700 

1,840 

1,710

1,550 

1,550 

1,930 

2,580 

2,200

1,820 

1,520 

1,380 

1,250 

1,130

1,010

1^130 

982

866

745 

680 

660 

670 

650

581 

509 

509 

500 

460 

428

Minimum Mean

418 771 

445 551 

445 517

250 2,769

270 548 

350 938 

1,050 1,992 

1,480 5,268 

5,520 7,868 

6,650 11,800 

2,010 5,092 

428 1,199 

406 556

270 3,093

i.) 10,200 sec. -ft.; May 4 (1 a.m

Sept.

406 

406 

406 

452 

420

420 

406 

406

554 

338

420 

640 

701

946

833 

723

680 

630 

600

563 

554 

500 

484 

500

640 

554 

518 

436 

581

Runoff In 

acre-feet

47,380 

32,780 

31,780

2,010,000

33,670 

52 , 100 

122,500 

313,400 

483,800 

702,000 

313,100 

73,750 

33,070

2,239,000

) 9,750

May 17 (1 a m.) 9,5OO sec.-ft.; May 30 (9:20 p.m.) 10,800 sec.-ft.; June 19 (8:30 p.m.) 

26,900 sec.-ft.; June 24 (6 p.m.) 22,400 sec.-ft.; July 9 (10:30 p.m.) 9,430 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of available trace, weather records, discharge 

measurements, and records for main stem and tributary stations.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed as explained in footnote a.

e uncertain stage-discharge relation; discharge computed as explained in footnote a.

939921 O - 51 - 20
296 SAN JUAN RIVER BASIN 

San Juan River at Ship Rock, N. Hex.

Location.- Water-stage recorder, lat. 36°47'35", long. 108°43'55", in SW^- sec. 22, T. 30 

K. , K. 18 W., 3 miles northwest of Ship Rock and 6 miles downstream from Chaco River. 

Upstream and downstream gages are each 400 feet from middle gage. Datum of downstream 

gage is 4,848.6 feet above mean sea level (from river-profile survey). Datura of middle 

and upstream gages is 1.85 feet higher.

Drainage area.- 12,900 square miles.

Records available.- January to October 1911, October 1930 to September 1931, and October 

iyaa to September 1949 in reports of Geological Survey. January to October 1911 and 

November 1915 to December 1931 in reports of State engineer.

Average discharge.- 29 years (1916-20, 1921-25, 1927-31, 1932-49), 2,788 second-feet.

Extremes.- Maximum discharge during year, 28,900 second-feet June 20 (gage height, 8.81 

reet, middle gage); minimum daily, 200 second-feet Jan. 6.

1930-31, 1932-49: Maximum discharge, 44,200 second-feet Sept. 28, 1935 (gage height, 

9.44 feet, middle gage, from floodmark), from rating curve extended above 20,000 secondfeet by logarithmic plotting; minimum daily, 8 second-feet Aug. 25, 26, 1939.

A stage of about 6.5 feet, site and datum then in use, occurred Aug. 11, 1929 (discharge; about 80,000 second-feet). A greater discharge probably occurred Oct. 6, 1911, 

when a stage of 22.0 feet on old gage (relation to present datum unknown) was recorded.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Revisions.- W 1119. Drainage area.

Discharge , in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

ai

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

97? 

1,040 

860 

786 

843

778 

730 

763 

733 

686

638 

628 

614 

554 

534

510 

534 

51O 

716 

635

953 

686 

600 

607 

580

607 

586 

1,240 

3,450 

1,910 

a2,700

Nov.

a3,000 

1,190 

1,04O 

885 

843

810 

754 

649 

621 

649

614 

554 

600 

628 

614

607 

593 

614 

638 

580

58 O 

560 

560 

593 

580

593 

593 

468 

457 

474

Dec.

593 

586 

586 

560 

468

468 

*510 

510 

b500 

548

593 

593 

642 

64*9 

635

635 

*600 

621 

628 

534

548 

534 

67O 

693 

600

538 

635 

738 

670 

593 

*528

Jan.

580 

b60O 

6500 

3300 

*3250

3200 

3300 

b400 

b500 

b600

*b700 

b900 

1,090 

1,370 

1,250

894

663 

*614 

534 

580

628 

678 

762 

762 

708

708 

693 

607 

560 

516 

3500

Feb.

a450 

446 

528 

678 

670

631 

486 

462 

510 

423

548 

670 

778 

746 

628

614 

656 

716 

818 

946

1,100 

1,580 

3,540 

2,900 

2,900

3,150 

1,700 

1,470

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 10,000 sec. -ft.).- A

sec. -ft.; May 17 (4 a.m.} 1O,30O sec. -ft.; M 

sec. -ft.: July 10 (5 a.m.) 10.930 sec. -ft.

Mar.

1,340 

1,370 

1,220 

1,540 

1,730

2,110 

2,350 

2,480 

2,270 

1,960

1,940 

2,090 

2,230 

2,110 

2,070

2,170 

2,600 

2,860 

2,780 

2,710

2,980 

2,520 

2,540 

2,560 

2,170

1,840 

1,810 

1,820 

1,940 

2,130 

1,890

Apr.

1, 

1, 

1, 

1, 

1,

2, 

2, 

2, 

5, 

4,

3, 

3, 

4, 

5, 

5,

5, 

5, 

6, 

6, 

5,

5, 

5, 

6, 

7, 

8,

9, 

9, 

8, 

7, 

9,

Secondfoot-days

27,962 

20,931 

18,196

1,033,214

19,847 

28,734 

66,130 

154,360 

245,160 

372,500 

160,310 

38,053 

17,973

1,170,156

630 

660 

600 

540 

910

350 

600 

740 

050 

010

330 

450 

890 

500 

300

250 

770 

360 

670 

540

300 

200 

540 

980 

650

100 

320 

420 

700 

100

May

8,900 

7,700 

8,300 

9,500 

8,900

7,100 

6,310 

5,540 

5,360 

5,170

7,300 

9,300 

9,100 

7,900 

7,700

9,300 

9,500 

8,300 

7,100 

6,700

6,500 

5,730 

5,730 

6,120 

6,900

8,100 

9,300 

10,700 

10,700 

10,100 

10,300

Maximum

3,450 

2,000 

738

18,100

1,270 

2,900 

2,980 

9,320 

10,700 

25,000 

8,900 

3,240 

1,020

25,000.

June

9,300 

7,900 

6,500 

6,500 

6,700

7,500 

8,100 

7,300 

6,700 

7,100

9,700 

10,500 

11,400 

12,800 

13,700

14,600 

15,100 

18,300 

24, 500 

25,000

19-, 800 

17,400 

16,000 

16,000 

16,900

13,300 

12,200 

11,100 

10,700 

9,900

July

8,900 

8,500 

8,900 

8,700 

8,100

7,300 

6,500 

6,500 

6,120 

7,500

7,300 

6,700 

5,730 

5,360 

4,990

4,460 

3,680 

3,470 

3,280 

2,910

2,940 

2,910 

3,420 

3,800 

4,290

4,810 

3,360 

2,910 

2,650 

2,180 

2,140

Aug.

1,840 

1,680 

1,510 

1,690 

1,730

1,500 

1,500 

1,890 

3,240 

2,420

1,840 

1,580 

1,330 

1,230 

1,150

1,000 

905 

1,130 

1,000 

877

821 

737 

678 

737 

691

659 

572 

566 

528 

500 

522

Minimum Mean

510 902 

457 698 

468 587

179 2,823

200 640 

423 1,026 

1,220 2,133 

1,540 5,145 

5,170 7,908 

6,500 12,420 

2,140 5,171 

500 1,228 

370 599

200 3,206

Sept.

506 

468 

435 

430 

462

405 

380 

370 

420 

517

390 

539 

691 

912 

1,010

1,020 

884 

779 

730 

659

641 

588 

583 

588 

594

647 

647 

572 

572 

534

Runoff in

acre-feet

>55,460 

41,520 

36,090

2,049,000

39,370 

56,990 

131,200 

306,200 

486,300 

738,800 

318,000 

75., 480 

35,650

2,321,000

pr. 27 (1 a.m.) 10,900 sec. -ft.; May 4 (2 a.m.) 10,100 

ay 29 (7 a.m.) 11,350 sec. -ft.; June 20 (3 a.m.) 28,9OO

.-. .. , .-. 

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of discharge measurement, weather records, 

and records for stations at Farmington and near Bluff, 

b Stage-discharge relation affected by ice.
SAN JUAN RIVER BASIN 297

San Juan River near Bluff, Utah

Location.- Water-stage recorder, lat. 37°09', long. 109°52', in SW£ sec. 7, T. 42 S., R.

19 J£., 1,600 feet downstream from Gypsum Creek, 1,800 feet upstream from bridge, and

20 miles southwest of Bluff. Altitude of gage, 4,050 feet (from river-profile map).

Drainage area^- 23,000 square miles.

Records available.- October 1914 to September 1917, March 1927 to September 1949.

Average discharge.- 25 years (1914-17, 1927-49), 2,900 second-feet.

Extremes.- Maximum discharge during year, 27,900 second-feet June 21 (gage height, 17.92 

reet); minimum daily, 70 second-feet Jan. 6.

1914-17, 1927-49: Maximum discharge, 70,000 second-feet Sept. 10, 1927 (gage height, 

32.0 feet), from rating curve extended above 30,000 second-feet; no flow July 3-13, 1934, 

Aug. 24-27, 29, 1939.

Flood of Oct. 6, 1911, which is greatest known at Ship Rock, N. Mex., probably exceeded that of Sept. 10. 1927, at this station, but stage was not accurately determined.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are rair. Diversions above station for irrigation. No diversion between station and 

mouth of river. Records of chemical analyses, water temperatures, and suspended sediment 

loads for the water yeac 1949 are gjven 3n Water-Supply Paper 1163.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24

25

26 

27 

26 

29 

30 

31

Oct.

1,260 

1,060 

1,100 

963 

928

870 

9OO 

616 

622 

768

750 

720 

679 

634 

626

590 

579 

579 

702 

640

610 

645 

676 

732 

665

665 

668 

1,330 

4,400 

4,130 

6.63O

MOV.

4,900 

2,660 

1,500 

1,080 

1.O3O

942 

888 

856 

810 

726

685 

691 

662 

634 

656

674 

645 

628 

634 

606

617 

612 

566 

579 

606

579 

612 

579 

552 

480

Dec.

466 

563 

f552 

542 

f6Ol

f563 

f526 

495 

505 

510

f552 

566 

617 

840 

64O

f645 

f674 

f640 

f656 

f628

f563 

601 

1,260 

1,170 

f856

714 

697 

1,060 

816 

744 

714

Jan.

f714 

*f786 

666 

b300 

blOO

*b70 

*blOO 

*b300 

b450 

*b800

*f 1,440 

2,150 

2.S50 

3,750 

2,630

f 1,740 

f 1,100 

f786 

f702 

702

617 

732 

876 

1,160 

1,030

1,060 

1,090 

977 

f768 

f651 

f651

Feb.

f579 

f211 

f!99 

f311 

f606

f732 

f685 

f531 

f432 

f364

f471 

531 

840 

870 

822

f798 

792 

914 

852 

1,140

1,530 

1,950 

2,540 

3,810 

4,320

4,770 

3,2OO 

2,480

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

lendar year 19 4£

ter year 1948-49 .......................

Mar.

2,340 

2,220 

1,760 

1,560 

2,010

2,270 

2,810 

2,990 

3,030 

2,380

1,940 

1,980 

2,400 

2,430 

2,320

2,400 

2,660 

3,250 

3.37O 

3,250

f3,340 

f 3, 280 

2,810 

2,850 

2,660

2,340 

2,010 

1,870 

1,910 

2,140 

2,260

Apr.

2,850 

2,75O 

2,180 

2,060 

1,980

2,43O 

3,100 

3,830 

4,450 

5,600

4,35O 

3,960 

4,13O 

5,220 

5,840

5,840 

5,850 

6,490 

7,370 

6,890

6,330 

6,130 

6,490 

7,900 

9,270

9,940 

10,170 

9,880 

6,790 

8,510

Secondfoot-days

37,780 

27,713 

2O, 76o

1,079,097

31,750 

37,280 

76,840 

170,580 

253,680 

377,020 

172,200 

45,446 

20,828

1,271,897

May

9,510 

8,970 

7,920 

8,750 

9,610

8,950 

8,050 

7,140 

5,940 

5,140

5,430 

8,550 

9,410 

9,570 

8.35O

8,610 

10,O1O 

9,670 

8,63O 

7,440

6.8OO 

6,450 

5,730 

5,600 

6,170

7,160 

8,350 

9,590 

10,990 

10,850 

10,340

Maximum

6,630 

4,900 

1,260

18,100

3,750 

4,770 

3,370 

10,170 

10,990 

25,400 

9,820 

4,650 

1,370

25,400

June

10,360 

9,190 

7,780 

6,780 

6,740

7,030 

7,390 

7,780 

7,220 

6,760

7,710 

9,510 

10,510 

11,430 

12,340

13,O5O 

13,550 

16,120 

23, 280 

25,400

24,300 

19,540 

17,110 

16,810 

17,020

15,360 

13,000 

11,920 

11,310 

10,720

July

9,820 

9,130 

9,050 

9,130 

9,110

8,110 

7,350 

6,760 

7,390 

6,450

7,940 

7,690 

7,250 

6,170 

5,39O

4,790 

4,190 

3,660 

3,340 

3,130

2,970 

2,970 

3,020 

3,440 

3,920

4,720 

4,590 

3,300 

2,800 

2,460 

2,160

Minimum

579 

480 

466

151

70 

199 

1,560 

1,980 

5,140 

6,740 

2,160 

552 

348

7*0

Aug.

2,050 

1,860 

1,680 

1,630 

1,580

1,630 

1,580 

2,290 

4,650 

3,680

2,840 

2,100 

1,730 

1,460 

1,350

1,220 

1,070 

977 

1,010 

1,100

970 

888 

798 

780 

726

726 

662

645 

617 

595 

552

Mean

1,219 

924

670

2,948

1,024 

1,331 

2,478 

5,686 

8,183 

12,570 

5,555 

1,466 

694

3,485

Sept.

516 

f461 

f409 

f37S 

f352

f364 

413 

378 

348 

442

f864 

1,360 

708 

702 

1,03O

1,370 

1,150 

1,070 

928 

828

768 

7 2O 

674

651 

634

612

612 

651 

691 

744

Runoff In 

acre-feet

74,940 

54,970 

41,220

2,140,000

62,980 

73,940 

152,400 

338,300 

503,200 

747,800 

341,600 

90,140 

41,310

2,523,000

Peak discharge (base, 12,000 sec. -ft.).- June 21 (12:01 a.m.) 27,900 sec. -ft.; Aug. 9 (12:01 a.m.)

12,zoo sec.-rt.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

t Fragmentary gage-height record; discharge computed from partly estimated gage heights.
SAN JUAN RIVER BASIN

Drainage area.- 41.2 square miles.

Records available.- April 1937 tu September 1949.

Average discharge.- 12 years, 87.9 second-feet.

Extremes.- Maximum discharge during year, 1,290 second-feet June 18 (gage height, 5.24 

feet), from rating curve extended above 750 second-feet; minimum daily, in second-feet 

on many days during winter.

1937-49: Maximum discharge, that of June 13, 1949; minimum daily, 7.2 second-feet 

Feb. 21, 1939.

Maximum flood known occurred Oct. 5, 1911.

Remarks . - Re:ords fair No diversion or regulation.

Rating tables, water year 1948-49, excep', periods of ice effect 

(gage height, in feet, and discharge, In second-feet)

1.1

1.2

1.3 

1.5 

1.7

Oct. 1 to July 31 

1.9 55 1.4

1.5 

1.7

Aug. 1 to Sept.

11

16

30

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

36 

29 

24 

23 

26

25 

21 

21 

20 

20

20 

19 

18 

19 

21

18 

16 

16 

18 

22

20 

18 

17 

16 

16

16 

16 

14

22

20

Nov.

23 

25 

*24 

20 

19

20 

20 

16 

b!4 

b!6

18 

18 

16 

17 

17

18 

17

b!5 

b!3 

b!3

16 

15 

15 

15

15 

14 

14 

14 

14

Dec.

*14 

14 

14 

14 

14

14 

14 

14 

14 

13

14

13 

13 

14 

14

14 

14 

14 

13 

13

13 

13 

11 

11 

bll

blJ 

14 

13 

13 

13 

13

Jan.

13 

13 

14 

13 

13

13 

13 

12 

11 

11

14

13 

11 

11 

11

10 

10 

10 

10

11

11 11

10 

10 

10

11 

11

10 

10 

10 

10

Feb.

10

11 11 11

10

10 

10 

10 

10 

10

10 

10 

10 

10 

10

11 

11 

11 

ll 

11

11 

11 

11 

11 

11

10 

10 

10 

10

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

st

ter year 1948-49 .......................

Peak discharge (base, 500 sec. -ft.).- June

July 6 (11:30 p.m.) 870 sec. -ft. 

* Winter discharge measurement made on thi

Mar.

10 

10

11 

11 

11

11 

11

10 

10 

10

11

12 

12 

11 

14

16 

19 

23

26 

26

26 

26 

25 

23 

21

19 

18 

19 

19 

19 

18

Apr.

18 

19 

19 

18 

18

26 

30 

29 

27

30 

50 

95 

110 

130

150 

170 

180 

150 

165

180 

210 

24d 

270 

290

310 

270 

240 

290 

310

roTt-da^s

626 

506 

413

35,212

351 

293 

509 

4,066 

9,802 

20,040 

8,701 

1,383 

717

47,407

May

230 

30C 

350 

330 

290

240 

210 

170 

170 

200

250 

320 

280 

290 

380

390 

360 

320 

310 

300

260 

220 

250 

300 

430

460 

420 

380 

440 

465 

437

Maximum

36 

25 

14

895

14

11 

26 

310 

465 

1,200 

616 

96 

71

1,200

June

337 

300 

318 

417 

503

526 

477 

409 

473 

544

580 

620 

696 

815 

775

790 

1,020 

1,200 

1,010 

880

825 

815 

870 

905 

755

660 

678 

638 

620 

584

July

616 

544 

453 

421

401

401 

485 

369 

337 

341

413 

357 

333 

300 

270

250 

230 

210 

200 

190

175 

160 

155 

180 

170

155

140 

125 

115 

105

100

Aug.

96 

96 

92 

82 

70

60 

60 

66 

56 

51

48 

45

42 , 39 J 

37

36 

36 

34 

31 

29

28 

27 

27

26 

26

25 

26 

25 

23

22

Sept.

24 

28 

23

22

20

19 

18 

19 

21

31 

34 

32 

31 

25

22 

22 

20 

18 

17

16 

15 

19 

20 

18

7 

17 

20 

71

36

Minimum Mean acre feet

14 20.2 1,240 

13 16.9 1,000 

11 13.3 819

9 96.2 69,830

10 11.3 696 

10 10.5 581 

10 16.4 1,010 

18 136 8,060 

170 316 19,440 

300 668 39,750 

100 281 17,260 

22 44.6 2,740 

15 23.9 1,420

10 130 94,020

5 (6 p.m.) 593 sec . -f t . ; June 18 (3 p.m.) 1,290 sec. -ft. 

s day.

b Stage-discharge relation affected by ic

Note.- No gage-height record Jan. 13 to May 29, July 14-20, July 22 to Aug. 2, Aug. 4-9; discharge 

computed on basis of 3 discharge measurements made 4 miles downstream, recorded range In stage, 

(feather records, and records for nearby stations.
SAN JUAN RIVER BASIN

Location.- Water-stage recorder, lat. 37°22'30 , long. 106°53'45", in NEf sec. 12, T. 36

. 1 w., a quarter of a mile downstream from bridge on U.S. Highway 160, 0.6 mile

upstream from mouth, and 10 miles northeast of Pagosa Springs. Datum of

,b05.57 feet above mean sea level, jatum of 1929.

Drainage area.- 8?.9 square miles.

Records available.- April 1935 to September 1949.

Average discharge.- 14 years, 173 second-feet.

Extremes.- Maximum discharge during year, 2,260 second-feet June 18 (gage height, 6.45 

feet) , from rating ^urve extended above 1,400 second-feet; minimum daily, 12 SL-^ondfeet Nov. 28.

1935-49: Maximum discharge, 2,300 second-feet June 23, 1941, from rating curve 

extended above 1,300 second-feet; maximum gage height, 6.45 feet June 18, ,.949; 

minimum daily discharge, 10 second-feet Den. 19, 1337.

Maximum flood known recurred Oct. 5, 1911.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

42 

39 

37 

34

36

38 

31 

31 

31 

29

29 

28

28 

28

32

31 

29 

29 

31 

34

32 

31 

31 

29 

28

28 

28

34 

32

36 

36

Nov.

36 

41 

42 

41 

 31

28 

32 

28 

21 

21

21 

21

21

20 

22 

16 

13 

17

15 

17 

20 

21 

22

17 

15

12 

20

Dec.

*23 

23 

21 

20 

16

20 

20 

22 

21 

20

20

21 

21 

22

20 

21 

21 

18 

19

21 

22 

22 

20 

19

21 

24 

23 

22 

21

Jan.

23 

22

21

20

21

23 

23

24 

25 

24 

*25 

23

21 

20 

20 

21 

21

22

21 

21

22

20 

18 

18

Feb.

19 

19 

20 

19 

19

19

19 

*19 

19

19

19 

20 

20 

19 

19

19 

19 

20 

20 

20

20 

21

?5 

27

26 

25 

24

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

MA v

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

21

24 

27

27 

29 

28

*27

28

29 

28 

35

41 

47

70

86

74 

68 

70 

52 

44

40 

38 

43 

45 

41 

36

Apr.

36 

37 

35

33 

*32

37 

48 

58 

51 

48

53 

86 

160 

192 

206

231

262

250

288 

342 

402 

437 

476

493 

476 

398 

482 

500

Secondfoot-days

992

697 

647

76,063

673 

576 

1,262 

6,693 

15,771 

33,209 

14,886 

2,421 

1,215

79,042

May

454 

482

566 

532 

437

384 

327 

279 

276 

324

462 

514 

444 

465

630

636 

588 

504 

490 

472

398

364 

409 

514

728 

676 

616 

676 

744 

728

Maximum

42 

42 

24

1,640

25 

27 

86 

500 

744 

1,900 

1,030 

171 

102

1,900

June

570 

514 

535 

668 

812

872

816 

636 

704 

908

944

1,100 

1,140 

1,190

1,230

1,320 

1,420 

1,900 

1,740 

1,480

1,390 

1,380 

1,410 

1,480 

1,280

1,240 

1,240 

1,180 

1,080

1,030

July

1,030 

964 

916 

836 

736

664 

892 

644 

560 

560

704 

570 

482 

426 

384

362 

352 

331 

317 

310

292 

268 

264 

328 

317

300 

264 

237 

209 

190 

177

Minimum

28 

12

16

12

18 

19 

21 

32 

276 

514 

177 

38 

29

12

Aug.

164 

171 

171 

145 

124

115

109 

115 

104 

96

82

7fi 

70 

66 

62

61 

57 

55 

52 

50

48 

45 

45 

45 

44

44 

44 

44 

41 

38 

38

Mean

32.0 

23.2 

20.9

208

21.7 

20.6 

40.7 

223 

509 

1,107 

480 

78.1 

40.5

217

Sept.

41 

48

42 

38 

37

37 

35 

34 

34 

41

44 

64 

50 

53

42

40 

37 

34

33 

32

30 

29 

29

33 

30

30 

29 

32 

102 

55

Runoff in 

acre-feet

1,970 

1,380 

1,280

150,900

1,330 

1,140 

2,500 

13,280 

31,280 

65,870 

29,530 

4,800 

2,410

156,800

Peak discharge (base, 900 see.-ft.).-June 5 (11:30 p.m.) 987 sec.-ft.; June 18 (10 p.m.) 2,260 

sec.-ft.; July 7 (1:30 a.m.) 1,300 sec.-ft.; July 11 (l a.m.) 920 see.-ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Oct. 1-6, Nov. 21 to Apr. 4 (stage-discharge relation affected by ic 

during most of period); discharge computed on basis of 4 discharge measurements, recorded range in

stage, weather records, and records for San Juan River at Pagosa Springs.
300 SAN JUAN RIVER BASIN

Turkey Creek near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat.37°22'15", long. 106°56'45", at west side of sec. 

iu, T. 36 N., R. 1 W., 2-J miles upstream from mouth and 8 miles northeast of Pagosa 

Springs. Datum of gage is 7,617.49 feet above mean sea level (Bureau of Reclamation 

bench mark).

Drainage area.- 23.0 square miles.

Records available.- May 1937 to September 1949 (discontinued).

Average discharge.- 12 years, 38.4 second-feet.

Extremes.- Maximum discharge during year, 527 second-feet June 18 (gage height, 3.13 

reet J; minimum daily, 1.4 second-feet Sept. 23, 25-27.

1937-49: Maximum discharge, 860 second-feet May 12, 1941 (gage height, 3.73 feet), 

from rating curve extended above 550 second-feet; minimum daily, 0.1 second-foot 

Sept. 21, 23, 1944.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair: A large part of flow diverted from drainage basin above station 

during irrigation season.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.5 

2.0 

1.8 

1.6 

2.0

1.6 

2.0 

1.8 

1.8 

1.6

1.6

1.6 

1.6 

1.6 

2.2

1.9 

1.8

1.8 

Z.9 

2.9

2.9 

2.3

2.0 

1.9 

1.8

1.6 

1.6 

4.2 

4.2 

4.4 

4.0

Nov.

.0 

.9 

* .2 

.4 

.9

.5 

.7 

.9 

5.1 

10

8.4 

8.2 

12 

13 

11

8.2 

4.0 

b4.5 

b6.0 

b7.0-

b5.5 

b5.8 

b6.2 

b5.5 

6.2

5.8 

5.1 

3.3 

4.0 

4.5

Dec.

» .0 

.8 

.8 

.3 

.7

.4 

.0 

.5 

.2 

.3

.5 

.7 

.2 

.4

.6

.5 

.6 

.4 

.1 

 .3

.5 

.5 

.3 

.4 

.7

2.9

3.1 

2.7 

2.8 

2.8 

2.9

Jan.

2.9 

2.8 

2.6 

2.2 

1.7

1.7 

1.8 

2.1 

2.1 

2.0

2.0 

2.1 

2.1 

 2.0 

2.0

1.9 

1.9 

1.9 

2.0

2.0

2.1 

2.2 

2.1 

2.1 

2.1

2.2

2.1 

1.9 

1.9 

1.8 

1.8

Feb.

1.9 

2.0 

2.1 

2.1 

2.0

2.0 

2.2 

»2.3 

2.3 

2.3

2.4 

2.4 

2.4 

2.3

2.1

2.0 

2.0

2.1 

2.1 

2.2

2.3 

2.3 

2.3 

2.4 

2.4

2.4 

2.3 

2.3

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr" 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Peak discharge (base, 180 sec. -ft).- May 2

Mar.

2.2 

2.0 

2.1 

2.1 

2.2

2.3 

2.3 

2.3 

2.3 

2.2

 2.1 

2.5 

2.4 

2.4 

3.0

4.0 

5.5 

6.5 

8.7

11

7.6 

7.3 

7.0 

6.0 

5.5

4.9 

b4.5 

4.9 

4.7 

4.2 

1)4. 0

Apr.

4.2 

4.O 

3.9 

4.0 

5.1

S.7

13 

 13 

12 

11

12 

21 

29 

33 

35

41 

50 

59 

53 

52

59 

87 

118 

128 

145

151 

130 

128 

151 

148

Secondfoot-days

68.5 

187.8 

127.9

15,958.3

64.1 

61.9 

130.7 

1,708.9 

4,519 

6,253 

2,703 

393.1 

116.4

16,334.3

May

138 

154 

172 

157 

132

125 

104 

91 

96 

120

151 

172 

145 

157 

193

187 

183 

140 

132 

128

112 

108 

110 

125 

142

175 

187 

178 

172 

181 

172

Maximum

4.4 

13 

5.6

362

2.9 

2.4 

11 1511 

193 

439 

172 

29 

17

439

June

138 

118 

122 

151 

187

196 

181 

157 

163 

196

205 

208 

212 

236 

254

272 

287 

439 

339 

240

216 

212 

212 

244

196

190 

184 

181 

163 

154

Minimum

Tuly

151 

154 

148 

140 

125

118 

172 

118 

108 

106

132 

112 

102 

93 

79

69 

69 

59 

53 

50

45 

42 

49 

76

71

69 

52 

43 

36 

32 

30

1.6 

3.3 

2.7

.7

1.7 

1.9 

2.0 

3.9 

91 

118 

30 

3.0 

1.4

1.4

Aug.

27 

29 

27 

23 

20

19 

22 

23 

23 

26

18 

16 

15 

15 

14

12 

6.2 

6.0 

5.5 

4.9

.4 

.4 

.2 

.2 

.0

4.0 ~.7 

3.4 

3.2 

3.0 

3.0

Mean

2.21 

6.26 

4.13

43.6

2.07 

2.21 

4.22 

57.0 

146 

208 

87.2 

12.7 

3.88

44.8

Sept.

3.7 

4.9 

3.7 

3.2 

2.5

1.8 

1.5 

1.7 

1.7 

2.4

2.9 

4.7 

3.6 

3.7 

3.0

4.2 

5.5 

5.8 

5.5 

5.5

5.5 

3.3

1.4 

2.0 

1.4

1.4 

1.4 

1.8 

17 

9.7

Runoff In 

acre-feet

136 

372 

254

31,65O

127 

123 

259 

3,390 

8,960 

12,400 

5,360 

780 

231

32,390

(9 p.m.) 202 sec. -ft.; May 15 (8 p.m.) 226 sec. -ft. 5

wuiic -LU \±JL p.m.; ot f oeu.-iu., ifune CO 1J.-L p.ID.7

July 10 (10:30 p.m.) 208 sec.-ft.

* Winter discharge measurement made on this day. 

 ^ b Stage-discharge relation affected by ice.
SAN JUAN RIVER BASIN 301

Rio Blanco near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°12'45", long. 106°47 I 40", in center of sec 1 1 

3?~¥77 R. IE., at county highway bridge, 0.4 mile upstream from White Creek and'l2.5 

miles southeast of Pagosa Springs.

Drainage area.- 58.0 square miles.

Records available.- May 1935 to September 1949.

Average discharge.- 14 years, 93.1 second-feet.

Extremes.- Maximum discharge during year, 958 second-feet June 18 (gage height, 4.12 

reet), from rating curve extended above 660 second-feet; minimum daily 8.8 secondfeet Oct. 3,-4, 13, 16-18, Jan. 31.

1935-49: Maximum discharge, 1,490 second-feet Oct. 12, 1941, from rating curve 

extended above 450 second-feet; maximum gage height, 4.12 feet June 18, 1949; minimum 

daily discharge, 6.0 second-feet Sept. 3, 1942. 

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records fair except those for periods of no gage-height record, which are poor 

Diversions above station for irrigation.

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

13 

13

14 

15

16 

17 

18 

19 

20

31 

33 

33 

34

35

26 

27 

28 

39 

30 

31

Oct.

10 

13 

8.8 

8.8 

16

14 

12 

10 

'9.8 

9.5

9.2 

9.0 

8.8 

9.0 

9.2

0.8 

8.8 

S.8 

9.5 

15

15 

13 

12 

12 

12

12 

12 

17 

16 

24 

24

Nov.

28 

38 

35 

30 

19

19 

20 

17 

13 

15

15 

14 

14 

16 

17

16 

16 

14 

18 

14

18 

17 

14 

16 

14

16 

19 

23 

16 

18

Dec.

16 

»19 

17 

16 

14

15 

14 

16 

14 

15

16 

16 

16 

16 

17

16 

16 

16 

15 

15

16 

16 

16 

15 

13

15 

15 

15 

14 

15 

15

Jan.

16 

16 

15 

13 

12

12 

13 

14 

14 

15

15 

*16 

16 

15 

14

14 

13 

12 

12 

10

10 

11 

11 

11 

11

10 

10 

9.S 

9.2 

9.0 

8.8

Feb.

9.0 

9.6 

10 

9.S 

9.2

9.4 

10 

10 

9.6

 9.4

9.6 

10 

11 

11 

11

11 

12 

12 

12 

12

13 

13 

12 

13

14

14 

13 

14

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Itev

June 

July 

Augu 

Sept

Ha

mber ..... ....-.--....--..-- .........

lendar year 1948

ter year 194S-49 .......................

Mar.

15 

16 

16 

16 

15

15 

16 

16 

*16 

16

19 

17 

18 

18 

17

20 

28 

39 

44 

51

36 

36 

34 

26 

25

23 

25 

25 

24 

21 

22

Apr.

21 

19 

20 

20 

24

31 

41 

49 

39 

36

42 

61 

80 

88 

92

122 

156 

138 

108 

122

159 

241 

280 

301 

307

283 

250 

277 

307 

271

Secondfoot-days

377.0 

559 

4SO

29,290.4

387.8 

313.6 

725 

3,985 

9,920 

13,842 

4,425 

1,133 

781

36,928.4

Peak discharge (base, 800 sec. -ft.).- June 18 (1:30 p.

May

229 

304 

336 

295 

226

211 

155 

150 

185 

241

304 

325 

304 

353 

472

392 

342 

292 

283 

277

238 

250 

298 

353

406

476 

490 

437 

430 

426 

440

Maximum

24 

38 

19

576

16 

14 

51 

307 

490 

874 

299 

74 

83

874

June

342 

301 

325 

402 

437

409 

356 

310 

342 

416

426 

500 

544 

552 

572

612 

656 

874 

702 

606

534 

484 

488 

509 

404

397 

372

348 

308 

314

July

299 

272 

257 

222 

208

197 

216 

148 

154 

152

248 

166 

202 

154 

119

105 

101 

97 

102 

101

87 

96 

97 

94 

118

89 

74 

68 

63 

60 

59

Aug.

56 

61 

61 

53 

52

58 

74 

59 

54 

49

46 

42 

42 

38 

35

34 

32 

30 

26 

23

22 

21 

21 

20 

20

21 

20 

18 

16 

15 

14

Sept.

21 

25 

19 

16 

14

14 

14 

12 

5 

25

44 

54 

80 

53 

29

24 

20 

18 

16 

15

14 

14 

14 

18 

20

18 

18 

18 

83 

39

Minimum Mean «^

8.8 12.2 748 

13 18.6 1,110 

13 15.5 952

8.5 80.0 58,110

8.8 12.5 769 

9.0 11.2 622 

15 23.4 1,440 

19 133 7,900 

150 320 19,680 

301 461 27,460 

59 143 8,780 

14 36.5 2,250 

12 26.0 1,550

8.8 101 73,260

m.) 958 sec^ft.

Winter discharge measurement made on this day. 

Note.- Ho gage-height record Dec. 3 to Mar. 8 Istage-discharge relation affected by ice during 

part of period}, Aug. 9-11; discharge computed on basis of 2 discharge measurements, weather records, 

and records for stations on nearby streams.
302 SAN JUAN RIVER BASIN

Rito Blanco near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°11'40", long. 106°54'20", in SW^ sec. 12, T. i)4 

N., H.I W., at county highway bridge, 600 feet upstream from Sheep Cabin Creek and 

7f miles southeast of Pagosa Springs.

Drainage area.- 23.3 square miles.

Records available.- May 1935 to September 1949.

Average discharge.- 14 years, 19.6 second-feet.

Extremes.- Maximum discharge during year, 215 second-feet June,18 (gage height, 2.60 

feet) ; minimum daily, U.I second-foot Oct. 5-8, 11-14, 19.

1935-49: Maximum discharge, 475 second-feet May 13, 1941 (gage height, 3.21 feet, 

site and datum then in use), from rating curve extended above 350 second-feet; no 

flow at times in 1939, 1940, 1943-44, 1948. 

Maximum flood known occurred Oct. 5, 1911.

Remarks - Records good except those for period of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2

.2 

.1

.1 

.1 

.1

.2 

.2

.1 

.1 

.1 

.1 

.2

.2 

.2 

.2 

.1

.4 

.3

.2 

.2

.2

.2 

.2 

.6 

1.0 

.8 

.6

Nov.

0.5 

.5 

.5 

*.5 

.5

.4 

.4 

.4 

.3

.2

.2 

.2 

.2

.4 

.4

.5 

.2

.2 

.2

.3 

.3

.2

.2 

.2

Dec.

0.5 

*1.1 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.1 

1.1 

1.1 

1.1

1.2 

1.2 

1.2 

1.2 

1.2

1.1 

1.2 

1.2 

1.1 

1.1 

1.2

Jan.

1.2 

1.2 

1.1 

1.0 

1.0

1.0 

1.1 

1.1 

1.1 

1.2

1.3 

*1.4 

1.4 

1.4 

1.3

1.2 

1.1 

1.0 

1.0 

1.0

1.1

1.2 

1.2 

1.2 

1.2

1.2 

1.1 

1.0 

1.0 

.9 

.9

Feb.

1.0

1.1

1.1 

1.1

1.0

1.1

1.2

1.1 

1.2 

*1.2

1.3 

1.5 

1.6 

1.6 

1.5

1.6 

1.6 

1.6 

1.7 

1.7

1.8 

1.6

1.6 

1.7 

2.1

1.3

1.7 

1.7

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ........................

Mar.

2.0 

1.!

2.

2. 

2. 

2.'

2.'.

2.-

2.. 

3 . 3

4.0 

6.0 

9.4 

10

10

11 

14 

8.7 

7.0 

7.0

5.0 

6.5 

5.0 

4.5 

5.0 

6.0

Apr.

3.5 

4.5 

5.0 

3.0 

5.5

11 

18 

17 

15 

15

16 

24 

32 

39 

47

52 

58 

58 

48 

51

62 

86 

115 

111 

128

125 

113 

107 

120 

113

Secondfoot -days

7.8 

9.1 

35.7

6,898.6

35.1 

40.8 

153.4 

1,602.5 

3,107 

2,520 

461.6 

150.9 

66.2

8,190.1

May

96 

111 

125 

109 

86

82 

67 

55 

59 

86

128 

130 

122 

125 

150

128 

115 

96 

84 

82

71 

69 

78 

96

107

125 

122 

111 

100 

98 

94

Maximum

1.0 

.5 

1.2

165

1.4 

2.1 

14 

168 

150 

156 

31 

15 

12

156

June

86 

76 

78 

94 

111

98 

88 

71 

6? 

82

84 

80 

78 

82 

82

94 

100 

156 

156 

128

102 

84 

90 

80 

64

54 

49 

42 

36 

33

July

31

31 

28 

26 

24

22 

26 

19 

18 

15

20 

14 

14 

12 

9.4

7.0 

8.0 

9.4 

8.7 

8.0

7.0 

8.7 

11 

12 

14

16 

12 

9.4 

7.5 

6.5 

7.0

MJnimum

0.1 

.2 

.5

0

.9 

1.0 

1.8 

3.0 

55 

33 

6.5 

1.0 

.7

.1

Aug.

8.0 

6.5 

8.7 

7.0 

5.0

7.5 

6.5 

11 

13 

15

8.7

7.0 

7.0 

6.0 

5.0

2.4 

2.4

2.2 

2.1 

2.0

2.0 

2.0 

2.1 

2.0 

2.0

1.7 

1.6

1.4

1.1 

1.0 

1.0

Mean

0.25 

.30 

1.15

18.8

1.13 

1.46 

4.95 

53.4 

100 

84.0 

14.9 

4.87 

2.21

22.4

Sept.

1.3 

1.4 

1.0 

.9 

.8

.9 

.9 

.9

1.0 

1.1

1.7 

2.0 

2.8 

12 

2.1

1.3 

1.0 

.8 

.8 

.8

.8 

.7 

.8 

1.6 

2.6

1.8 

2.2 

1.7 

12 

6.5

Runoff in 

acre-feet

15 

18 

71

13,680

70 

81

304 

3,180 

6,160 

5,000 

916 

299 

131

16,240

Peak discharge (base, 90 sec.-ft.).- Apr.25 (7:30 p.m.) 194 sec.-ft.; May 2 (10 p.m.") 165 sec.- 

ft.; May 15 (5 p.m.) 190 sec.-ft.; May 26 (8 p.m.) 171 sec.-ft.; June 5 (2 a.m.) 128 sec.-ft. ; June 

18 (11:30 a.m.) 215 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 2 to Jan. 3. No gage-height record Dec. 1, 

Jan. 4 to Mar. 10 (stage-discharge relation affected by ice during part of periods); discharge computed on basis of 2 discharge measurements, weather records, and records for nearby stations.
SAN JUAN RIVER BASIN 303

Navajo River at Banded Peak Ranch, near Chromo, Colo.

Location.- Water-stage recorder, lat. 37°05'00", long. 106°41'30", in NVf£ sec. 24, T. 33 

 N., K. 2 E.. on Banded Peak Ranch, half a mil" downstream from Aspen Creek and 9 miles 

northeast of Chromo.

Drainage area.- 69.8 square miles.

Records available.- April 1937 to September 1949 (no winter records in 1943).

Average discharge.- 11 years (1937-48, 1943-48), 117 second-feet.

Extremes.- Maximum discharge during year not determined, occurred during period of indefinite stage-discharge relation; maximum gage height, 8.48 feet June 15; minimum 

daily discharge, 11 second-feet Feb. 9.

1937-49: Maximum discharge, 1,340 second-feet May 13, 1941 (gage height, 4.08 

feet); minimum daily, that of Feb 9, 1949. 

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

No diversion or regulation above station.

Discharge, in second-feet, water.year October 1948 to September 1949

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

32 

30 

29 

29 

33

31 

30

£9

£9

?9 

23 

23 

29 

30

30 

30 

30 

31 

33

32 

31 

31 

31 

31

29 

31 

34 

31 

35 

37

Nov.

36 

38 

40 

*35 

31

SO 

31 

30

:?

26

26 

28 

29 

29 

29

29 

29 

28 

25 

26

26 

£2 

21 

22 

23

23 

b22

2£ 

24 

£6

Dec.

28 

*29 

27 

25 

?5

C6 

?6 

27 

26 

26

26 

26 

26 

£7 

£7

26 

26 

25 

£5 

26

£7 

VI 

£7 

25 

£1

23 

25 

25 

23 

23 

£5

Jan.

£7 

£6 

25 

?4

22

2 1

25 

28

29 

*30 

32

30 

27

24 

24 

24 

19 

21

20

23

£3 

22

21 

20 

17 

13

12 

12

Feb.

IE 

13 

14

If

IS

12 

32

14 

11 

*12

14 

16 

34 

13

14 

15 

17 

18 

19

21 

19 

21

24 

26

23 

23 

£5

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948

1............... ........................

ter year 1948-49 .......................

Peak discharge (ease, 530 sec. -ft.).- June

748 sec. -ft. 

* Winter discharge measurement made on thl

Mar.

26 

27 

35 

35 

28

27 

29 

30 

*30 

30

31 

31

33

32 

3E

34 

AK 

38

42 

44

38 

41 

44 

42

35

35 

37 

43 

44

40 

37

Apr.

44 

4£ 

39 

37 

42

50 

*5S 

57 

52 

49

5£

75 

88 

95

110 

135 

143 

128 

135

154

210 

260 

302

326

306 

270 

283 

318 

290

Secondroot-days

954 

833

796

39,319

703 

459

1,066

10.E59 

14,152 

6,616 

2,347

1.E83

43,885

May

?67 

£98 

34E 

314

£67

£54 

£35 

£10 

2£8 

244

338

538 

334 

342

410

390 

350 

310 

302 

298

270 

280 

318 

358 

402

442 

450 

406 

402 

428 

43E

Maximum

37 

40 

?9

620

32 

26 

44 

326 

450 

720 

352 

135 

62

720

June

354

3E6 

330 

390 

446

437 

390 

346 

354 

414

464

504 

504 

554

568

572 

600

7?0 

68u 

640

550 

522 

526 

574

462

426 

398 

386

369 

346

July

331 

307 

306 

280 

265

248 

265 

240 

248 

245

352 

£95 

286 

£71 

E35

212 

200 

185 

183 

17B

1151 

149 

161 

188 

220

178 

154 

135 

118 

108 

114

Aug.

103 

130 

135 

116 

101

108 

114 

101 

110 

125

93 

86 

76 

73

65

62 

67 

68 

58 

57

54

50 

49 

49 

46

44 

45 

42 

42 

40 

38

Minimum Mean

29 30.8 

21 ?7.8 

21 25.7

El 107

12 22.9 

11 16.4 

25 34.4 

37 140 

210 331 

326 472 

108 220 

38 75.7 

35 42.8

11 120

18 (time and discharge unknown); June 24 (12 

s day.

Sept.

38 

45 

42 

40 

40

40 

40 

41 

41 

41

50 

57 

62 

56 

43

42

41 

40 

38 

36

36

37 

37 

38 

39

36 

35 

45 

62 

45

Runoff In 

acre-feet

1,890 

1,650 

1,580

77,990

1,410 

910 

2,110 

8,350 

20,350 

28,070 

13,5?0 

4,660 

2,540

87,040

:15 a.m.)

e-discharge relation af17-27; discharge coraher records, and records
304 SAN JUAN RIVER BASIN

Navajo River at Edith, Colo.

Location.- Water-stage recorder, lat. 37°00'10", long. 106°54'20", in NWv sec. 24, T. 32 

H., K. 1W., 340 feet downstream from highway bridge at Colorado-New Mexico State line, 

a quarter of a mile east of Edith, and 1 mile upstream from Coyote Creek. Datum of 

gage is 7,033.00 feet above mean sea level (Bureau of Reclamation bench mark).

Drainage area.- 165 square rrlles.

Records available.- September 1912 to December 1914 and June 1935 to September 1949 in reports or (ieological Survey. September 1912 to December 1928 and June 1935 to September 

1949 in reports of Colorado State engineer. September 1912 to December 1928 in reports 

of New Mexico State engineer.

Average discharge.- 30 years (1912-28, 1935-49), 178 second-feet.

Extremes. - Maximum discharge during year, 1,050 second-feet- June 19 (gage height, 5.12 

reet), from rating curve extended above 600 second-feet; minimum daily, 22 second-feet 

Jan. 31, Feb. 1, 6.

1935-49: Maximum discharge, 2,840 second-feet Apr. 23, 1942 (gage height, 6.55 

feet), from rating curve extended above 1,100 second-feet; minimum daily, 11 secondfeet Feb. 4, 1943.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnich are fair. Diversions above station for irrigation.

Rating table, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used June 14 to July 11, 

Aug. 10-25, Sept. IE-50)

2.3 18

2.4 26

2.5 36

2.6 48

2.7 62

2.8 80

3.0 126

3.3 210

3.5 275

4.1 525

4.5 720

4.9 960

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

41 

40 

37 

a 35 

a38

a 35 

a 31 

28 

28 

29

32 

33 

33 

34 

36

31 

29 

30 

33 

35

33 

33 

33 

34 

34

35 

36 

52 

44 

48 

51

Nov.

48 

51 

52 

*54 

41

38 

40 

40 

35 

35

37 

36 

35 

36 

35

34 " 

34 

37 

32 

37

36 

44 

49 

44 

49

41 

36 

26 

28 

31

Dec.

31 

*31 

29 

28 

28

31 

30 

33 

32 

32

32 

32 

32 

33 

34

33 

33 

32 

30 

31

32 

34 

34 

32

30

32 

35 

36 

33 

31 

34

Jan.

35 

35 

34 

32

27

30 

33 

32 

35 

36

37 

*37 

37 

37 

35

32 

30 

31 

27 

32

31 

32 

34 

34 

32

31

29 

27 

24 

23 

22

Feb.

22 

23 

25 

26

23

22 

24 

26 

*23 

24

27 

29 

31 

27 

29

30 

30 

30 

31 

32

33 

35

36 

38 

41

38 

38 

38

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febn 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1948 

ary .

ter year 1948-49 ...............

Mar.

37 

35 

37 

40 

41

41 

42 

42 

*40 

40

42 

41

47 

45 

50

55 

65 

80 

91 

102

84 

93 

84 

66 

59

59 

59 

71 

73 

64 

58

Apr.

61 

58 

54 

58 

73

114 

*149 

192 

174 

139

166 

237 

287 

311 

311

327 

375 

411 

363 

363

371 

435 

507 

543 

585

580 

520 

502 

556 

534

Secondfoot-clays

1,101 

1,171 

990

50,603

983 

831 

1,783 

9,356 

15,042 

17,377 

7,953 

2,647 

1,445

60,679

May

471 

489 

543 

516 

440

419 

379 

339 

343 

403

512 

516 

489 

476 

548

575 

548 

453

415 

419

375 

383 

415 

462 

543

625 

665 

605 

530 

566 

580

Maximum

52 

54 

36

675

37 

41 

102 

585 

665 

948 

395 

172 

82

948

June

520 

458 

458 

516 

585

590 

516 

462 

444 

525

538 

625 

605 

675 

680

685 

715 

948 

870 

768

655 

640 

590 

650 

494

516 

476 

411 

383 

379

Juj.y

383 

343 

335 

295 

287

287 

315 

283 

272 

287

395 

367 

335 

343 

287

254 

247 

231 

219

210

204 

186 

204 

216 

254

204 

172 

155 

136 

126 

121

Minimum

28 

26 

28

20

22 

22 

35 

54 

339 

369 

121 

38 

35

22

Aug.

124 

131 

147 

139 

116

107 

134 

124 

112 

172

136 

104 

93 

82 

78

69 

66 

71 

61 

58

55 

54 

51 

52 

49

46 

48 

44 

44 

42 

38

Mean

35.5 

39.0 

31.9

138

31.7 

29.7 

57.5 

312 

485 

579 

257 

85.4 

48.2

166

Sept.

38 

54 

43 

41 

41

40 

40 

38

11

58 

78 

71 

78 

52

52 

49 

47 

46 

42

36 

37 

37 

38 

41

38 

35 

36 

82 

67

Runoff In 

acre-feet

2,180 

2,320 

1,960

100,400

1,950 

1,650 

3,540 

18,560 

29,840 

34,470 

15,770 

5,250 

2,870

120,400

Peak discharge (base, 600 sec.-ft.).- Apr. 26 (2 a.m.) 670 sec.-ft.; May 27 (3 a.m.) 685 sec.-ft.; 

June 6 (3 a.m.) 645 sec.-ft.; June 19 (3 a.m.) 1,050 sec.-ft.; June 24 (4:30 a.m.) 912 sec.-ft.

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for nearby stations.

Note.- Stage-discharge relation affected by ice Nov. 28 to Mar. 17 (no gage-height record Dec. 29 

to Jan. 9).
SAN JUAN RIVER BASIN

305

Little Navajo River at Chromo, Colo.

Location.- Water-stage recorder, lat 37°02'10", long. 106°50'35", in SEj sec. 4, T. 32 

 N., K. IE., 400 feet upstream from bridge on U. S. Highway 84 at Chromo, a quarter

of a mile upstream from mouth. Datum of gage is 7,288.52 feet above mean sea level,

datum of 1929.

Drainage area.- 21.9 square miles.

Records available.- May 1935 to September 1949.

Average discharge.- 14 years, 14.2 second-feet.

Extremes.- Maximum discharge during year, 138 second-feet Apr.25 (gage height, 3.40 feet), 

rrom rating curve extended above 65 second-feet; maximum gage height, 3.49 feet May 11; 

minimum daily discharge, 0.2 second-foot Aug. 19, Sept. 3-9, 15-17, 22, 23, 25-27.

1935-49: Maximum discharge, 399 second-feet May 14, 1941 (gage height, 4.32 feet, 

site then in use), from rating curve extended above 250 second-feet; no flew Aug. 31 , 

1938, July 7, 1939, May 18 to Aug. 10, Aug. 12-20, 1946, June 26 to Aug. 3,1947.

Maximun flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.3 

.3

.4

.6 

.6 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.4

.4 

.5 

.5 

.6 

.8

.8 

.8 

.8 

.8 

.6

.6 

1.1

1.7 

1.4 

4.1 

4.1

Nov.

3.2 

3.8 

3.8 

*3.5 

2.3

2.0 

2.5 

.0 

.7 

.5

.5

.8 

.8 

.8 

.8

.8 

.8 

.5 

.0 

.0

.2 

.2 

.0 

.0

.1

.1 

.0 

.0 

.0 1.1

Dec.

1.1 

* .1 .1

.0 

.0

.0

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1

.0 

.0 

.0 

.0

.1 

.1 

.1 

.0 

.9

.9 

1.0 

1.0 

.9 

.9 

1.0

Jan.

1.0 

1.0 

.9 

.8 

.8

.8 

.9 

.9 

.9 

1.0

.1 

* .2 

.2 

.1 

.0

.9 

.9 

.9 

.8 

.8

.9

1.0 

1.1 

1.1 

1.1

1.1 

1.0 

.9 

.9 

.8 

.7

Feb.

0.7 

.9 

.0 

.0 

.9

.1 

.1 

.0 

.1 

* .2

.3 

.4 

.5

.4 

.3

.4 

.5 

.6 

.8 

.8

.0 

.9 

.8 

.1 

2.5

2.4 

2.2 

2.2

Month

Ooto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

2.5 

2.5 

2.3 

2.5 

2.8

3.0 

3.0 

3.0 

*3.0 

2.9

3.2 

2.9 

3.3 

3.8 

4.2

5.0 

5.6 

6.6 

7.0 

7.0

5.4

5.0 

6.0 

5.5 

5.0

5.0 

6.0 

7.0 

7.0 

6.4 

6.0

Apr.

8.0 

7.0 

6.0 

11 

23

34 

38 

36 

29 

24

33 

47 

51 

49 

47

44 

49 

45 

40 

41

48 

60 

72 

83

102

108 

100 

98 

98 

90

Secondfoot-days

26.2 

52.8 

32.2

4,377.9

29.5 

42.1 

140.4 

1,521 

2,162 

833.2 

202.8 

50.3 

9.9

5,102.4

May

77 

91 

101 

81 

67

65 

55 

50 

59

71

102 

102 

86 

88 

94

98 

66 

69 

60 

60

55 

55

57 

60 

60

60 

61 

55 

51 

46 

40

Maximum

4.1 

3.8 

1.1

88

1.2 

2.5 

7.0 

108 

102 

54 

18 

5.1 

.7

108

June

36- 

31 

31 

39 

36

30 

28 

25 

25 

29

25 

25 

27 

26 

25

25 

31 

54 

47 

37

29 

26 

25 

29 

25

22 

19 

13 

7.5 

5.7

July

5.4 

3.9 

1.2

1.2 1.1'

2.0 

3.4 

3.7 

3.9 

5.7

18 

14 

14 

11 

9.8

8.4 

7.5 

6.9 

6.6 

6.9

6.9 

6.6

7.2 

11 

10

6.6 

5.1 

4.2 

3.9 

2.8 

3.9

Minimum

0.3 

1.0 

.9

.1

.7 

.7 

2.3 

6.0 

40 

5.7 

1.1 

.2 

.2

.2

Aug.

3.7 

3.4 

3.9 

2.8 

2.3

1.5 

3.4 

2.8 

4.5 

5.1

2.8 

2.3 

1.7 

1.3 

1.2

.6 

.3 

.3 

.2 

.3

.4 

.7 

.7 

.6 

-5

.6 

.6 

.5 

.5 

.5 

.3

Mean

0.85 

1.76 

1.04

12.0

.95 

1.50 

4.53 

50.7 

69.7 

27.8 

6.54 

1.62 

.33

14.0

Sept.

0.4 

.4 

.2 

.2 

.2

.2 

.2

.2 

.2 

.4

.5 

.7 

.5

.7

.2

.2 

.2 

.3 

.5 

.5

.4 

.2

.2 

.3 

.2

.2 

.2 

.3 

.5 

.5

Runoff In 

acre-feet

52 

105 

64

8,690

59 

84 

278 

3,020 

4,290 

1,650 

402 

100 

20

10,120

Peak discharge (base. 80 see.-ft.).- Apr. 12 (5:30 p.m.) 87 sec.-ft.; Apr. 25 (9:30 p.m.) 138 sec. 

ft.; May 2 (9:15 p.m.) 126 see.-ft.; May 11 (2:30 a.m.) 134 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 6 to Dec. 29. No gage-height record Dec. 30 

to Mar. 9 (stage-discharge relation affected by Ice during most of period), Mar. 12 to Apr. 6; discharge computed on basis of 3 discharge measurements, weather records, and records for stations on 

nearby streams.
306

SAN JUAN RIVER BASIN

Piedra River at Bridge ranger station, near Pagosa Springs, Colo.

Location - Water-stage recorder, lat. 37°25'30", long. 107°11'30", in sec. 22, T. 37 N., 

R. 3 W., 1,000 feet downstream from Bridge ranger station, 1 mile downstream from 

Middle Fork, and 15 miles northwest of Pagosa Springs. Datum of gage is 7,640.35 

feet above mean sea level (Bureau of Reclamation bench mark).

Drainage area.- 82.3 square miles.

Records available.- April 1937 to September 1941, July 1946 to September 1949.

Extremes.- Maximum discharge during year, 1,800 second-feet June 18 (gage height, 7.52 

feet), from rating curve extended above 1,100 second-feet; minimum daily not deterrainoccurred during period of no gage-height record.

1937-41, 1946-49: Maximum discharge, that of June 18, 1949; minimum not determined, 

occurred during period of no gage-height record.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. A few small diversions above station for irrigation.

ed,

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

27 

26 

25 

22 

23

25 

23 

23

23 

23

22 

22 

22 

22 

22

22 

22 

21 

22 

23

22 

21 

21 

20 

20

20 

20 

22 

22

26 

26

Nov.

26 

30 

30 

*28

22

22 

25 

21 

24 

38

30

23 

24 

23 

23

23 

20 

bl6

b22

b20 

b!9 

b2O 

b21 

b21

b20 

b!7 

b!2 

15 

17

Dec.

(*) 

> 13

Jan.

11

Feb.

> 12

Month

Goto 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

h.................... ...................

ter year 1948-49 .......................

Mar.

14 

14 

14 

15

17

15 

15 

15 

15 

*15

15

15 

15 

15 

15

15

16 

17 

18 

20

19 

18 

19 

19 

18

15 

- 13 

14 

14 

14 

13

Apr.

13 

14 

18 

25 

34

*45 

51 

62 

56 

55

64

130 

167 

183 

181

211

242 

258 

223 

201

232 

292 

321

330 

340

337 

282 

275 

312 

295

Secondfoot-days

700 

674 

403

50,237

341 

336 

486 

5,249 

10,027 

22,040 

9,757 

1,744 

959

52,716

May

282 

334 

376 

337 

275

250 

217 

197 

185 

225

290 

309 

275 

292 

379

379 

318 

272 

240 

232

209 

203 

235 

303

396

488 

512 

491 

526 

530 

470

Maximum

27 

38

1,300

20 

340 

53O 

1,410 

606 

115 

91

1,410

June

386 

358 

400 

488 

592

612 

530 

456 

519 

632

636 

720 

808 

868 

884

952 

968 

1,370 

1,410 

972

908 

864 

880 

856 

712

704 

688 

696 

592 

579

July

596 

606 

567 

522 

459

430

522 

400 

362 

368

382 

328 

305 

282 

254

232 

226 

216 

208 

242

222 

196 

196 

318 

278

238 

204 

180 

158 

136 

124

Minimum

20

12

-

13 

13 

185 

358 

124 

28 

21

-

Aug.

115 

109 

115 

98 

91

88 

88 

79 

79 

70

61 

58 

54 

51 

46

43 

44 

43 

38 

35

33 

32 

32 

32 

33

32 

31 

29 

28 

28 

29

Mean

22.6 

22.5 

13

137

11 

12 

15.7 

175 

323 

735 

315 

56.3 

32.0

144

Sept.

35 

40

34 

32 

32

32 

28 

27 

26 

28

36 

45 

37 

40 

32

30 

28 

27 

26 

26

24 

24 

23

22 

21

21 

21 

23 

91 

48

Runoff In 

acre-feet

1,390 

1,340 

799

99,650

676

666 

964 

10,410 

19,89O 

43,720 

19,350 

3,460 

1,900

104,600

Peak discharge (base, 600 sec.-ft.).- May 29 (10 p.m.) 616 sec.-ft.; June 18 (9:30 p.m.) 1,8OO sec. 

ft.; July 7 (1 a.m.j 808 sec.-ft.

* Winter1 discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 29 to Apr. 5 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 2 discharge measurements, weather records, and records for station near Piedra.
SAN JUAN RIVER BASIN 307

Piedra River near Piedra, Colo.

Location.- Water-stage recorder, lat. 37"14', long. 10V°20', in sec. 8, T. 34 H., R. 4 W. 

50 feet downstream from bridge on U. S. Highway 160, three-quarters of a mile upstream from Yellow Jacket Creek, and lj miles north of Piedra.

Drainage area.- 371 square miles.

Records available.- November 1911 to July 1912, October 1939 to September 1949.

Average discharge.- 10 years, 380 second-feet.

Extremes.- Maximum discharge during year, 4,520 second-feet June 18 (gage height, 6.86 

feet) , from rating curve extended above 2,500 second-feet; minimum daily, 36 secondfeet Nov. 28.

1911-12, 1939-49: Maximum discharge, 5,400 second-feet May 13, 1941 (gage height, 

8.0 feet, from floodmarks, site and datum then in use), from rating curve extended 

above 3,040 second-feet; minimum daily, 23 second-feet Dec. 20, 1939. 

Maximum flood known occureed Oct. 5, 1911.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

73 

67 

63 

60 

59

63 

62 

59 

58 

56

56 

55 

54 

55 

55

56 

55 

55 

56

63

63 

62 

59 

57 

55

54

54 

68 

67 

73 

71

Nov.

73 

78 

84 

86 

67

57 

69 

62 

42 

48

65 

56 

56 

59 

60

61 

70 

51 

38 

56

53 

48 

55 

57 

58

55 

46 

36 

a48 

a52

Dec.

a52 

a52 

*48 

43 

41

42 

41 

45 

44 

46

47 

45 

44 

45 

46

45 

46 

46 

42 

45

47 

46 

48 

b45 

b44

51 

50 

49 

46 

49 

50

Jan.

50 

50 

49 

347 

348

350 

b50 

b50 

b48 

b49

b50 

b50 

b50 

*52 

50

49 

b47 

b47 

b48 

b49

b50 

53 

51 

50 

50

50 

50 

49 

48 

b44 

a42

Feb.

343 

344 

345 

345 

346

346 

346 

346 

348 

*349

349 

a49 

a48 

a47 

347

348

350

a54 

a56 

59

60 

61 

63 

67 

68

67 

65 

67

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194£

ter year 1948-49 .......................

Mar.

64 

62 

63 

68 

71

73 

75 

*71 

67 

69

71 

71 

71 

67 

75

86 

92 

98 

112 

133

133 

120 

128 

120 

116

100 

93 

106 

101 

98 

101

Apr.

96 

88 

87 

88 

101,

130 

178 

261 

258 

258

258 

411 

624 

708 

768

828 

995 

1,120 

1,030 

974

1,040 

,280 

,550 

,640 

,730

,810 

,610 

,420 

,760 

,780

Secondfoot-days

1,863 

1,746 

1,430

155,022

1,520 

1,483 

2,775 

24,881 

47,030 

55,620 

21,241 

3,870 

2,165

165,624

May

1,590 

1,700 

2,000 

1,810 

1,480

1,330 

1,160 

1,050 

1,070 

1,320

1,830 

1,710 

1,570 

1,490 

1,790

1,830 

1,570 

1,420 

1,260 

1,240

1,090 

1,050 

1,120 

1,320 

1,500

1,800 

1,870 

1,940 

1,790 

1,750 

1,580

Maximum

73 

86 

52

3,890

53 

68 

133 

1,810 

2,000 

3,320 

1,320

137

3,320

June

1,420 

1,250 

1,310 

1,360 

1,480

1,670 

1,470 

1,280 

1,280 

1,650

1,720 

1,870 

1,960 

2,140 

2,050

2,080 

2,230 

3,320 

3,300 

2,300

2,160 

2,020 

2,050 

2,120 

2,230

2,080 

1,930 

1,340 

1,280 

1,270

July

1,250 

1,320 

1,240 

1.X50 

1,070

942

1,060 

900 

816 

906

894 

780 

708 

678 

594

518 

518 

479 

462 

468

479 

391 

396 

562 

584

528 

402 

345 

285 

272 

244

Minimum

54 

36 

41

36

42 

43 

62 

87 

1,050 

1,250 

244 

68 

54

36

Aug.

219 

199 

222 

190 

175

175 

178 

175 

172 

168

148 

135 

128 

118 

112

104 

101 

106 

99 

88

85 

79 

77 

77 

76

81 

85 

79 

72 

70 

68

Mean

60.1 

58.2 

46.1

424

49.0 

53.0 

89.5 

829 

1,517 

1,854 

685 

125 

72.2

454

Sept.

70 

92 

83 

74

70

70 

66 

64 

64 

68

63 

90 

74 

94 

81

72 

69 

66

63 

62

58 

57 

54 

58 

54

54 

54 

56 

128 

137

Runoff in 

acre-feet

3,700 

3,460 

2,840

307,400

3,010 

2,940 

5,500 

49,350 

93,28O 

110,300 

42,130 

7,680 

4,290

328,500

Peak discharge (base, 1,300 sec.-ft).- Apr. 25 (11 p.m.) 2,230 sec.-ft.; May 3 (1 a.m.) 2,230 sec. 

ft.-; Msy 11 (7:30 a.m.) 2,150 sec.-ft.; Msy 28 (3:30 a.m.) 2,100 sec.-ft.; June 18 (11 p.m.) 4,520 

sec.-ft.

* Winter dlschsrge messurement msde on this day.

3 No gage-height record; dlschsrge computed on bssls of 1 dlschsrge measurement, westher records,

b Stsge-dlscharge relation affected by Ice.
soa

SAN JUAN RIVER BASIN

Williams Creek near Bridge ranger station, near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°27'45", long. 107°11'45", in sec. 10, T. 37 N., 

H. 3 W., 2| miles north of Bridge ranger station, 3j miles upstream from mouth, and 

17 miles northwest of Pagosa Springs.

Drainage area.- 43.7 square miles.

Records available.- May 1937 to September 1941, May 1946 to September 1949 (discontinued).

Extremes.- Maximum discharge during year, 798 second-feet June 18 (gage height, 3.58 feet), 

 from rating curve extended above 460 second-feet; minimum not determined, occurred 

during period-of no gage-height record.

1937-41, 1946-49: Maximum discharge, 940 second-feet May 11, 1941 (gage height, 

3.68 feet, datum then in use), from rating curve extended above 450 second-feet; minimum not determined, occurred during period of no gage-height record. 

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

ZZ 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

11 

11 

10 

9.6 

10

*12

11 

10 

9.6 

9.6

9.2 

9.2 

9.2 

8.9 

9.2

9.2 

8.9 

8.6 

9.6 

10

10 

9.6 

8.9 

8.6 

8.6

8.2

8.6 

15 

12 

9.2 

8.4

Nov.

11 

12 

13 

12 

*11

9.0 

9.4 

9.2 

9.6 

10

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

8.6 

8.0 

7.4 

8.0

8.4 

8.4 

8.4 

8.4 

8.2

7.8 

7.2 

6.4 

6.4 

7.0

Dec.

(') 

» 7.0

Jan.

6.5

Feb.

7.0

Month

Ooto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

9.5

Apr.

10 

10 

10 

12 

15

»19 

21 

24 

22 

22

25 

38 

58 

70 

81

94 

128 

145 

130 

128

154 

205 

238 

279 

283

275 

241 

252 

267 

267

Secondfoot-days

302.9

268.8 

217.0

28,528.7

201.5 

196.0 

294.5 

3,523 

6,431 

10,410 

4,179 

604 

307.8

26,935.5

Peak discharge (base, 280 sec. -ft.).- Apr. 24 (5 p.m.)

May

244 

259 

271 

244 

202

178 

148 

128 

130 

178

220 

217 

196 

196 

230

238 

220 

193 

172 

163

151 

145 

154 

190 

224

263 

271 

267 

267 

248 

224

Maximum

15 

13

702

283 

271 

624 

331 

37 

17

624

June

214 

205 

211 

241 

267

291 

271 

230 

241 

313

304 

336 

350 

396 

408

420 

450 

624 

612 

474

432 

426 

420 

396 

365

313 

300 

326 

295 

279

July

300 

331 

304 

283 

238

208 

234 

202 

178 

193

175 

145 

130 

113 

100

90 

88 

92 

88 

79

70 

£4 

64 

73 

68

65 

52 

44 

39 

35 

34

Minimum

8.2 

6.4

-

10 

128 

205 

34 

11 

8.6

-

380 sec. -ft. ; May 30

Aug.

32 

30 

37 

33 

28

28 

27 

27 

25 

25

22 

21 

19 

18 

17

17 

16 

16 

14 

14

14

13 

12 

12 

14

14 

14 

12 

11 

11 

11

Mean

9.77 

8.96 

7.0

77.9

6.5 

7.0 

9.5 

117 

207 

347 

135 

19.5 

10.3

73.8

Sept.

12 

12

10 

9.2 

9.2

9.2 

9.2 

9.6 

10 

11

12 

12 

11 

12 

11

10 

10 

9.6 

9.2 

8.9

8.9 

8.6 

8.6 

8.6 

8.6

8.6 

8.6 

9.2 

17 

14

Runoff In 

acre-feet

601 

533 

430

56,580

400 

389 

584 

6,990 

12,760 

20,650 

8,290 

1,200 

611

53,440

(1 .a.m. ) 295 sec. -ft. ;

* Winter discharge meaaurement made on this day.

Note.- Stage-discharge relation affected by ice Pet. 31 to Nov. 19. No gage-height record Nov. 

to Apr. 5 (stage-discharge relation affected by ice during most of period); discharge computed on 

basis of 1 discharge measurement, weather records, and records for stations on nearby streams.
SAN JUAN RIVER BASIN 309

Weminuche Creek near Bridge ranger station, near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°28'15", long. 107°14'00", in sec. 6, T. 37 N., 

H. 3 W. , Zj miles northwest of Bridge ranger station, 5 miles upstream from mouth, 

and 19 miles northwest of Pagosa Springs.

Drainage area.- 53.4 square miles.

Records available.- April 1937 to September 1941, May 1946 to September 1949 (discontinued).

r ::*-.rernes. - Maximum discharge during year, 904 second-feet June 19 (gage height, 6.07 feet), 

rrom rating curve extended above 610 second-feet; minimum not determined, occurred 

during period of no gage-height record.

1937-41, 1946-49: flaximum discharge, 944 second-feet May 19, 1948 (gage height, 6.11 

feet), from rating curve extended above 610 second-feet; minimum not determined, occurred during period of no gage-height record.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for period of no gage-height record, which are poor, 

ft rew small diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

15 . 

13 

12

12 

12

13 

11 

11 

11 

10

9.7 

9.7 

9.4 

9.7 

10

9.7 

'9.4 

9.1

11 

12

11 

10 

9.7 

9.4 

9.1

8.8 

9.1 

8.5 

11 

10 

11

Nov.

12 

16 

17

15 

10

9.7 

10 

9.8 

10

12

10 

10

10 

10 

10

10 

9.8 

9.0 

8.4 

10

10 

10 

10 

10 

10

9.4

8.6 

7.4 

8.4 

9.4

Dec.

> 8.0

Jan.

> 7.5

Feb.

. 8.5

Month

Op to 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1943

ter year 1948-49 ...............

Mar.

 12

Apr.

11 

11 

11 

14 

19

27 

34 

37 

40 

35

35 

60 

78 

94

100

110 

120. 

160 

140 

130

140 

170 

200 

220 

240

250 

220 

210 

240 

260

Secondroot-days

327.3 

311.9 

248.0

32,902.5

232.5 

238.0 

372 

3,416 

8,754 

12,678 

4,385 

760 

356.9

32,079.6

May

240 

260 

330 

310 

248

210 

176 

152 

158 

225

285 

280 

245 

252 

315

339 

298 

245 

212 

202

188 

205 

245 

305 

363

381 

420 

435 

423 

426 

381

Maximum

15 

17

838

260 

435 , 

719 

300 

47 

31

719

June

336 

315 

342 

336 

363

408 

357 

315 

325 

399

423 

435 

483 

492 

495

519 

546 

719 

698 

525

498 

465 

462 

444 

366

351 

333 

325 

315 

288

July

300 

298 

278 

252 

215

190 

238 

188 

165 

228

200 

167 

144 

128 

112

103 

99 

93 

93 

87

81 

77 

80 

89 

95

89 

72 

64 

59 

51 

50

Minimum

8.5 

7.4

-

11 

152 

288 

50

11 

8.1

-

Aug.

44 

41

47 

42 

36

38 

37 

33 

31 

33

28 

25 

23 

21 

21

20 

20 

21 

18 

17

16 

15 

15 

15 

17

18 

17 

15 

13 

12 

U

Mean

10.6 

10.4 

8.0

89.9

7.5 

8.5 

12 

114 

282 

423 

141 

24.5 

11.9

87.9

Sept.

12

15 

12 

12

11

10 

10 

10

11

12

15 

17 

14 

14 

12

10 

10 

9.7 

9.3 

8.5

8.1 

8.1 

8.5 

8.9 

8.5

8.5 

8.5 

9.3 

31 

23

Runoff In 

acre-feet

649 

619 

492

65,280

461 

472 

738 

6,780 

17,360 

25,150 

8,700 

1,510 

708

63,640

Peak discharge (base, 250 sec.-ft.).- May 16 (2 a.m.) 375 sec.-ft.; May 26 (l a.m.) 465 sec.-ft.; 

June 6 (3 a.m.; 444 sec.-ft.; June 19 (l a.m.) 904 sec.-ft.

Note.- No gage-height record Nov. 7 to May 3j discharge computed on basis of weather records and 

records for stations on nearby streams.
310 SAN JUAN RIVER BASIN

Los Pinos River below Snowslide Canyon, near Weminuche Pass, Colo. 

(Locally known as Pine River)

Location - Water-stage recorder, lat. 37°38'15", long. 107°20'00", in sec. 5, T. 39 N.,

R. 4 W., 100 feet downstream from Snowslide Canyon, si miles (corrected) south of

Weminuche Pass, and 7 miles southwest of Rio Grande Reservoir Dam.

Drainage area.- 25.3 square miles.

Records available.- October 1937 to September 1941, May 1945 to September 1949 (no winter 

records 1937-41, 1945-46).

Extremes.- Maximum discharge during year, 626 second-feet June 18 (gage height, 4.38 feet) 

from rating curve extended above 370 second-feet; minimum daily recorded, 6.4 secondfeet Sept. 22, but. may have been less during period of no gage-height record.

1937-41, 1945-49: Maximum discharge, 650 second-feet May 29, 1938, from rating 

curve extended above 300 second-feet; maximum gage height, 4.38 feet June 18, 1949; 

minimum discharge not determined, occurred during period of no gage-height record.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. Two small diversions above station from Los Pinos River Basin to Riu 

Grande Basin.

Revisions.- W 1089: Drainage area.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

13 

13 

14 

14

16

17 

18 

16 

14 

14

14

14 

13 

14 

14

13 

12 

12 

14 

14

14 

12 

12 

12 

12

12 

12 

b!4 

b!7 

15 

12

Nov.

13 

11 

8.5 

7.5 

7.2

8.0 

9.0 

10 

12 

12

12 

12 

12 

12 

12

11 

11 

11

11 

11

10 

10 

10 

10 

10

10 

10 

10 

10 

10

Dec.

9.0

Jan.

8.0

Feb.

> 8.0

Month

Octo 

Nove 

Dece

Qa

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

uary. ...................................

ter year 1948-49 ...............

Mar.

« 9.0

Apr.

9.U 

9.0 

9.0 

9.0 

9.0

9.0 

9.2 

9.2

9.2 

9.2

9.2 

9.4 

9.8 

10 

10

11 

12 

13 

13 

14

16 

18 

19 

20 

35

35 

34 

37 

42 

38

Secondfoot-days

427 

313.2 

279.0

15,298.8

248.0 

224.0 

279.0 

486.2 

2,900 

8,262 

3,100 

432.6 

248.3

17,199.3

May

37 

55 

65 

58 

52

47 

46 

44 

50 

60

BG 

74 

66 

78 

95

90 

82 

78 

76 

74

72 

100 

120 

130 

160

170 

170 

170 

175 

170 

170

Maximum

18 

13

280

42 

175 

542 

195

22 

15

542

June

155 

135 

155 

180

210

220 

200 

180 

210 

240

250 

270 

300 

330 

336

376 

406 

542 

464

406

366 

356 

328 

288 

249

242 

242 

218 

209 

199

July

188 

195 

182 

171 

153

141 

142 

126 

127 

185

149 

122

107 

100 

95

89 

87 

86 

86 

70-

64

63 

60 

58 

53

46

42 

34

27 

27 

25

Minimum

12 

7.2

-

9.0 

37 

135 

25 

8.4 

6.4

-

Aug.

22

20 

20

20 

18 

18 

20

18

15 

15 

14

13 

13

13 

13 

12 

11

10

10 

9.5 

10 

10 

9.5

9.5 

10 

9.5 

8.8 

8.4 

8.4

Mean

13.8 

10.4 

9.0

41.8

8.0 

8.0 

9.0 

16.2 

93.5 

275 

100 

14.0 

8.28

47.1

Sept.

9.2 

11 

8.4 

8.4 

8.4

8.8 

8.4 

8.1 

8.8 

9.2

9.5 

9.5 

9.2 

8.8 

8.1

7.4

7.0 

7.0 

6.7 

6.7

6.7 

6.4 

6.7 

7.0 

6.7

6.7 

6.7 

7.8 

15 

10

Runoff in 

acre-feet

847 

621 

553

30,350

492 

444 

553 

964 

5,750 

16,390 

6,150 

858 

492

34,110

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 5 to June 13; discharge computed 

records for stations on nearby streams.

basis of weather records and
SAN JUAN RIVER BASIN 311

Vallecito Reservoir near Bayfield, Colo.

Location.- Float gage, lat. 37°23', long. 107°34', in sec. 19, T. 36 N., R. 6 W., at

Vallecito Dam on Los Pinos (Pine) River, 1,000 feet upstream from Little Red Creek and 

11 miles northeast of Bayfield. Datum of gage is 7,580 feet above mean sea level 

(Bureau of Reclamation bench mark). Gage heights have been reduced to elevations above 

mean sea level.

Records available.- April 1941 to September 1949.

Extremes.- Maximum contents during year, 111,400 acre-feet July 3-5 (elevation, 7 659.4 

reet); minimum, 25,530 acre-feet Apr. 16-18 (elevation, 7,616.5 feet).

1941-49: Maximum contents, 113,100 acre-feet July 10, 1947 (elevation, 7,660.05 

feet); minimum, 1,520 acre-feet Oct. 24, 25, 1944 (elevation, 7,584.1 feet).

Remarks.- Reservoir is formed by an earth and rock-fill dam; dam completed in March 1941. 

capacity of reservoir, 126,280 acre-feet between elevations 7,580 feet (sill of outlet 

gate) and 7,665 feet (crest of spillway). Dead storage, 3,395 acre-feet. Water is 

used for irrigation in Pine River Basin. Figures given herein are usable contents.

Cooperation.- Records furnished by Bureau of Reclamation. 

Revisions (water year).- W 959: 1941.

Monthly elevation and contents, water year October 1948 to September 1949

Date

Calendar year 1948...

Feb. 28. ...............

May 31. ...............

July 31... .............

Aug. 31........ ........

Sept. 30. ...............

Water year 1948-49. . .

Elevation 

(feet)

7,637.6 

7,634.6 

7,634.6 

7,635.2

-

7,636.3 

7,635.0 

7,622.9 

7,621.3 

7,636.2 

7,658.9 

7,654.6 

7,643.4 

7,633.2

-

Contents 

(acre-feet)

60,100 

54,120 

54,120 

55,290

-

57,470 

54,900 

34,080 

31,780 

57,270 

110,000 

99,080 

72,490 

51 , 440

-

Change in contents 

during month 

(acre-feet)

-5,980 

0 

+1,170

-23,550

+2,180 

-2,570 

-20,820 

-2,300 

+25,490 

+52,730 

-10,920 

-26,590 

-21,050

-8,660

939921 O - 51 - 21
312 SAN JUAN RIVER BASIN

Los Pinos River nea-r Bayfield, Colo. 

(Locally known as Pine River)

Location.- Water-stage recorder, lat. 37°21', long. 107°36', in sec. 26, T. 36 N., R. 7 

W., a quarter of a mile downstream from Red Greek and 9 miles north of Bayfield. 

Datum of gage is 7,415.08 feet above mean sea level, adjustment of 1912.

Drainage area.- 284 square miles.

Records available.- October 1933 to September 1949 in reports of Geological Survey.

October 19SJ7 to September 1949 (at present site) and May to September 1926 (at site 2 

miles upstream) in reports of State engineer.

Average discharge.- 22 years (1927-49), 374 second-feet.

Extremes - Maximum discharge during year, 2,390 second-feet June 20-25 (gage height, 

4.97 reet); minimum daily, 34 second-feet Nov. 12-21.

1926-49: Maximum daily discharge, 5,070 second-feet May 26, 1926; minimum daily, 

3.2 second-feet Feb. 11, 1941 (result of storage in Vallecito Reservoir); minimum 

daily (prior to construction of Vallecito Reservoir), 38 second-feet Dec. 21, 22, 

1937.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records excellent. Discharge regulated "by storage in Vallecito Reservoir 

(see preceding page). Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

1£ 

19 

20

El 

22 

23 

24 

25

26

27 

28 

29 

30

31

Oct.

310 

310 

310 

31* 

282

26f 

233 

216 

216 

216

216 

Z16 

184 

163 

163

163 

163 

163 

163 

163

Z06 

237 

Z37 

237 

237

237 

Z37 

ZOb 

168 

168 

168

Nov.

134 

114 

114 

100 

82

60 

48 

48 

48 

48

40 

34 

34 

34 

34

34 

34 

34 

34

34

34 

61 

91 

91 

93

93 

95 

69 

43 

43

Dec.

43 

43 

43 

43 

43

42 

42 

42 

42 

42

42 

42 

42 

42 

42

42 

42 

42 

42 

42

42 

42 

43 

55 

81

84 

7C 

46 

46 

46 

46

Jan.

46 

46 

46 

46 

46

46 

46 

46 

46 

46

45 

45 

44 

44 

43

43 

43 

43 

42 

42

42 

42 

42 

42 

42

42 

42 

4?

4- 

42 

42

Feb.

42 

42

42 

42 

42

55 

75 

93 

122 

122 '

122 

122 

122 

120 

120

127 

139 

139 

136 

136

136 

136 

136 

136 

136

136 

136 

136

Month

Octo 

Nove 

Dece

Ca

Janu 

Febn 

Marc 

Apr! 

Hav

June 

July 

Augu 

Sept

Wa

.endar year 1948

1..................................... ..

ter year 1948-49 .......................

Mar.

136 

213 

3*6 

306 

303

303 

303 

338 

390

426

465 

465 

465 

460 

46O

460 

460 

460 

460 

460

460 

460 

460 

460 

460

460 

460 

460 

460 

460 

455

Apr.

455 

455 

455 

450 

450

450 

450 

450 

450 

450

450 

455 

46*

460 

460

460 

465 

470 

470 

470

480 

485 

500 

500 

607

684 

733 

780 

796 

868

Secondfoot-days

6,766 

1,855 

1,446

190,299

1,356 

3,048 

12,694 

15,568 

28,892 

45,336 

35,326 

19,596 

13,680

185,563

May

868 

980 

996

1,100 

1,150

1,14-0 

1,130 

1,120 

1,120 

1,130

1,160 

1,150 

1,140 

1,140 

1,010

948 

964 

868 

812 

772

748 

748 

764 

772 

780

780 

726 

712 

719 

719 

726

Maximum

310 

134 

84

2,520

46 

139 

465 

868 

1,160 

2,390 

1,560 

764 

52»

2,390

June

698 

670 

600 

582 

588

594 

594 

594 

588 

670

820 

988 

1,320 

1,600 

1,840

1,920 

2,020 

2,160 

2,330 

2,390

2,390 

2,390 

2,390 

2,390 

2,390

2,160 

2,050 

2,160 

1,850 

1,600

July

1,560 

1,560 

1,560 

1,560 

1,540

1,550 

1,550 

1,550 

1,550 

1,550

1,420 

1,260 

1,260 

1,110 

1,010

.948 

900 

900 

868 

852

852 

852 

852 

852 

852

852 

852 

844 

836 

836 

788

Minimum

163 

34 

42

34

42 

42

136 

450 

712 

582 

788 

520 

359

34

Aug.

764 

764 

756 

756 

756

748 

748 

705 

677 

677

570 

670 

635 

621 

621

621 

600 

594 

594 

588

588 

576 

564 

558 

558

552 

535 

530 

525 

525 

520

Mean

218 

61.8 

46.6

520

43.7 

109 

409 

519 

932 

1,511 

1,140 

632 

456

508

Sept.

5?i^ 

51;, 

515 

515 

515

515 

510 

490 

475 

475

475 

475 

475 

475 

470

470 

470 

470 

465 

465

445 

418 

418 

418 

408

382 

359 

359 

359 

359

Runoff In 

acre-feet

13,420 

3,680 

2,870

377,400

2,690 

6,050 

25,180 

3O,88O 

57,310 

89,920 

70,070 

38,870 

27,130

368,100
SAN JUAN RIVER BASIN 313

Los Pinos River at Ignacio, Colo. 

(Locally known as Pine River)

Location.- Water-stage recorder, lat. 37°07'45", long. 107°37''50", in sec. 5, T. 33 N. , R. 

7V., three-quarters of a mile upstream from Ignacio and 2 miles upstream from Rock' 

Creek.

Drainage area.- 448 square miles.

Records available.- April 1899 to October 1903, September 1910 to December 1914, an 

uctober lyau to September 1949 In reports of Geological Survey. April 1899 to 0< 

1903, September 1910 to November 1912, and March 1913 to December 1931 in report;

id 

October

State engineer of New Mexico.

Aver'age discharge.- 28 years (1910-11, 1913-40), 373 second-feet, prior to completion of 

aiieclto Dam.

Extremes.- Maximum discharge during year, 2,120 second-feet June 20 (gage height, 4.82 

feet); minimum daily, 28 second-feet Oct. 10.

1910-14, 1930-49: Maximum discharge recorded, 5,570 second-feet Aug. 27, 1932 (gage 

height, 6.19 feet), from rating curve extended above 2,600 second-feet by logarithmic 

plotting; minimum daily observed, 0.1 second-foot Aug. 11, 1913.

Maximum flood known occurred Oct. 5, 1911 (discharge not determined), when gage was 

destroyed.

Remarks - Records good except those for periods of Ice effect or no gage-height record, 

which are poor. Plow regulated by Vallecito Reservoir (see p. 311); storage began in 

1941. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

38 

38

46. 

44 

50

40 

42 

38 

30 

28

43 

48 

38 

33 

4O

40 

40 

46 

67 

57

52 

60 

60 

48 

32

36 

36

85 

72 

104 

110

Nov.

96

72 

79 

110 

98

85 

67 

64 

67 

64

73 

72 

60 

a56 

52

46 

46 

36 

38 

40

46 

50 

88 

90 

93

90 

96 

93 

67 

60

Dec.

67 

67 

72 

*72 

52

b60 

b60 

b50 

*b55 

b60

b65 

b70 

74 

*64 

67

72 

62 

62 

55 

57

64 

72 

79 

72 

82

131 

122 

88 

*64 

67 

90

Jan.

79 

72 

b70 

b70 

b72

b74 

*b76 

b78 

b80 

b85

b90 

b92 

*b92 

b88 

b82

b78 

b75 

b70 

b70 

b70

b72 

b74 

b76 

*b78 

b80

b82 

b80 

b70 

b65 

b60 

*b55

Feb.

a56 

a60 

a66 

a70 

a 70

a70 

a70 

a70 

a85 

a!20

*b!50 

b!80 

b220 

b220 

b200

b200 

*b220 

b230 

b240 

b250

b250 

b260 

255 

216 

212

196 

189 

*193

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ember. ..................................

ter year 1948-49 .......................

Mar.

178 

196 

345 

355 

386

386 

380 

375 

436 

484

592 

606 

613 

606 

636

684 

660 

636 

644 

644

578 

578 

557 

532 

520

514 

520 

544 

544 

514 

496

Apr.

508 

496 

526 

578 

550

592 

620 

790 

676 

628

599 

652 

684 

692 

660

660 

684 

727 

660 

652

660 

718 

763 

772 

840

967 

967 

923 

956 

1,020

Secondfoot -days

1,539 

2,093 

2,194

132,614

2,355 

4,618 

15,739 

21,220 

25,645 

33,198 

22,048 

6,915 

4,814

142,378

May

1,000 

1,030 

1,110 

1,120 

1,150

1,100 

1,030 

1,010 

967 

989

1,180 

1,120 

1,09C 

1,070 

956

860 

912 

830 

709 

668

606 

606 

606 

585 

557

508 

472 

472 

442 

448 

442

Maximum

110 

110 

131

2,160

92 

260 

684 

1,020 

1,180 

2,040 

1,210 

392 

325

2,040

June

408 

330 

272 

220

186

186 

157 

148 

175 

164

280 

430 

742 

1,130 

1,360

1,490 

1,540 

1,750 

1,890 

2,040

2,040 

2,040 

2,040 

2,040 

2,040

1,890 

1,680 

1,680 

1,620 

1,230

July

1,150 

1,160 

1,150 

,140 

,130

,170 

,210 

,130 

1,080 

1,200

1,170 

867 

840 

708 

570

479 

412 

407 

397 

364

349 

332 

35" 

359 

472

432 

442 

479 

382 

368 

345

Minimum

28 

36 

50

28

55 

56 

178 

496 

442 

148 

332 

150 

109

28

Aug.

308 

308 

316 

304 

282

282 

285 

253 

340 

392

263 

253 

220 

195 

195

195 

214 

204 

195 

175

175 

169 

156 

164 

156

153 

156 

153 

153 

151 

al50

Mean

49.6 

69.8 

70.8

362

76.0 

165 

508 

707 

827 

1,107 

711 

223 

160

390

Sept.

a!40 

136 

130 

128 

133

128 

189 

325

118 

126

143 

156 

151 

151 

146

146 

148 

146 

140 

148

159 

146 

128 

174 

296

285 

240 

109 

133 

116

Runoff in 

acre-feet

3,050 

4,150 

4,350

263,000

4,670 

9,160 

31,220 

42,090 

50,870 

65,850 

43,730 

13,720 

9,550

282,400

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of available recorder trace, discharge measurements, weather records, and records for station at Bayfield. 

b Stage-discharge relation affected by ice.
314 SAN JUAN RIVER BASIN

Animas River at Howardsville, Colo.

Location.- Water-stage recorder, lat. 37°50' , long. 107°36', In see. 12, T. 41 N., R. 7 W. , 

l.UUU feet downstream from bridge on State Highway 110, 0.4 mile southwest of Howardsville, and half a mile downstream from Cunningham Creek. Datum of gage is 9,616.98 feet 

above mean sea level, adjustment of 1912.

Drainage area.- 55.9 square miles.

Records available.- May 1936 to September 1949 (no winter records 1936-39).

Average discharge.- 10 years, 118 second-feet.

Extremes.- Maximum discharge during year, 1,980 second-feet June 18 (gage height, 4.36 feet), 

from rating curve extended above 950 second-feet; minimum daily, 14 second-feet on many 

days in February and March.

1936-49: Maximum discharge, that of June 18, 1949; minimum daily, 11 second-feet 

Feb. 27, 28, 1941, Mar. 17-20, 1945.

Maximum flood known occurred Oct. 5, 1911.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversion above station.

0.8 

l.'O 

1.1

1.3

1.4

Rating tables, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 16 to Nov. 18,

Apr. 25 to June 11)

Oct. 1 to July 17

1.7

1.8 

2.0 

2.3 

2.6

112

133

190

300

440

2.8 

3.4 

3.8

570

1,050

1,410

July 18 to Sept. 30

0.9 22

1.0 30

1.1 40

1.3 

1.6

65

111

148

1.9 170

2.2 265

2.4 345

Discharge, In second-feet, water year'Oetober 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

36 

34 

33 

33 

36

35 

32 

32 

33 

33

32 

32 

32 

32 

32

32 

31 

30 

31 

31

30 

29 

28 

27 

27

26 

26 

26 

26 

26 

27

Nov.

27 

26 

27 

26 

24

25 

25 

25 

24 

24

24 

24 

23 

23 

23

23 

23 

24 

21 

21

21 

21 

21 

20 

20

20 

20 

19 

*20 

20

Dec.

20 

20 

19 

b!9 

b!9

b!9 

19 

20 

18 

19

18 

18 

18 

18 

20

19 

18 

18 

18 

18

18 

18 

18 

b!7 

b!5

b!6 

b!7 

b!8 

b!8 

b!8 

18

Jan.

17 

17 

18 

a!7 

a!7

a!8 

a!8 

a!8 

a!8 

a!8

a!7 

a!7 

a!6 

a!6 

*16

17 

a!7 

a!7 

a!7 

al7

17 

16 

b!6 

b!6 

b!6

16 

16 

16 

17 

17 

16

Feb.

a!5 

a!5 

a!5 

al5 

14

14 

14 

14 

16 

16

*15 

14 

b!4 

b!4 

b!4

15 

15 

16 

16 

16

15 

16 

16 

16 

15

16 

16 

14

Month

Oc to 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ember. ..................................

ter year 1948-49 .......................

Mar.

14 

16 

15 

16 

14

16 

14 

14 

15

14

14 

14 

14 

16 

*14

14 

15 

17 

16 

16

16 

16 

16 

16 

16

16 

18 

15 

15 

15 

16

Apr.

15 

15 

15 

15

15

16 

17 

18 

16 

16

17 

19 

21 

23 

24,

28 

34 

35 

33 

39

38 

49 

76 

127 

152

138 

138 

146 

178 

172

Secondfoot-days

950 

684 

566

49,042

522 

421 

473 

1,645 

7,239 

20,719 

11,882 

2,641 

1,108

48,850

May

138 

163 

218 

208 

163

136 

114 

101 

108 

146

157 

175 

152 

160 

218

239 

208 

190 

178 

187

166 

181 

239 

300 

354

435 

44O 

435 

464 

476 

390

Maximum

36 

27 

20

898

18 

16 

18 

178 

476 

1,360 

714 

142 

48

1,360

June

300 

242 

239 

256 

260

280 

260 

256 

350 

570

650 

714 

890 

762 

826

962 

1,110 

1,360 

1,120 

1,120

1,030 

994 

986 

794 

666

754 

770 

794 

746 

658

July

658 

706 

714 

674 

610

521 

521 

482 

500 

570

464 

430 

405 

386 

358

332 

332 

321 

325 

317

281 

254 

237 

221 

221

206 

191 

176 

166 

155 

148

Minimum

26

19 

15

15

16 

14 

14 

15 

101 

239 

148 

45 

28

14

Aug.

142 

134 

130 

123 

118

120 

132 

128 

125 

113

105 

99 

90 

86 

80

72 

72 

70 

65 

61

56 

56 

56 

56 

55

55 

52 

50 

47 

46 

45

Mean

30.6 

22.8 

18.3

134

16.8 

15.0 

15.3 

54.8 

234 

691 

383 

85.2 

36.9

134

Sept.

44 

47 

44 

42 

41

39 

38 

37 

38 

41

48 

48 

47 

46 

42

38 

33 

31 

30 

30

29 

29 

29 

29 

29

29 

28 

31 

37 

34

Runoff in 

acre-feet

1,880 

1,360 

1,120

97,280

1,040 

835 

938 

3,260 

14,360 

41,100 

23,570 

5,240 

2,200

96,900

Peak discharge (base, 700 sec. -ft.).- June 18 (7 p.m.) 1,980 sec. -ft.; June 27 (8 p.m.) 986 see . - 

ft.j July 3 (5 p.m.) .. 920 sec. . -ft. -. L~

Winter discharge measurement made on this day. 

No gage-height record (stage-discharge r 

rge computed on basis of weather records 

b Stage-discharge relation affected by ice

measurement made on this day.

a No gage-height record (stage-discharge relation affected by ice during most of periods); discharge computed on basis of weather records and records for nearby stations.
SAN JUAN RIVER BASIN 315

Anlmas River above Tacoma, Colo.

Location.- Water-stage recorder, lat. 37°34'00", long. 107°46'30", in sec. 8, T. 38 N., 

K. 8 W., 0.8 mile upstream from Tank Creek and 3.3 miles north of Tacoma.

Drainage area.- 348 square miles.

Records available.- January 1946 to September 1949. March 1908 to November 1909 and 

February'to October 1911 at site 4| miles downstream, records not equivalent.

Extremes.- Maximum discharge during year, 9,500 second-feet June 18 (gage height, 8.86 

feet) , from rating curve extended above 5,700 second-feet; minimum daily, 60 secondfeet Jan. 4.

1946-49: Maximum and minimum discharges, those of 1949. 

Maximum flocd known occurred Oct. 5, 1911.

Remarks.- Records excellent except those for period of ice effect, which are fair. Most 

or now of Cascade Creek diverted around station (26,820 acre-feet in water year 

1948-49) for power development.

Cooperation.- Records of diversion furnished by Western Colorado Power Co.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

Z45 

ZZ4 

Z09 

ZOO 

Z09

Z09 

191 

188 

18Z 

176

170 

165 

16Z 

160 

165

158 

148 

145 

150 

150

148 

140 

138 

136 

131

1Z9 

1Z7 

140 

131 

140 

140

Nov.

138 

»138 

138 

140 

1ZZ

115 

134 

12Z 

104 

115

134 

122 

131 

1Z4 

1Z4

1ZZ 

1Z2 

109 

104 

90

9Z 

90 

86 

88 

90

90 

78 

88 

86 

*8Z

Dec.

80 

82 

80 

78 

78

80 

84 

88 

86 

90

88 

88 

84 

86 

88

84 

84 

86 

84

76

80 

84 

86 

8Z

72

76 

80 

8Z 

76

76 

78

Jan.

78 

76 

70 

60 

64

62 

62 

66 

66 

66

70 

70 

*7Z 

74 

74

7Z 

68

66 

68 

66

70 

72 

74 

76 

76

76 

76 

74 

7Z 

70 

7Z

Feb.

74

76 

78 

78 

76

74 

7Z 

76 

78 

72

76 

76 

80 

8Z 

86

86 

86 

90 

94 

96

100 

100 

105 

105 

110

105 

105 

10Z

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Peak discharge (base, 3,600 sec. -ft).- Jun

Mar.

100 

93 

10Z

106 

111

10Z 

115 

108

104 

111

109 

108 

106 

10Z 

109

*1ZO 

1Z9 

136 

143 

160

143 

143 

136 

131 

129

1Z2 

118 

1Z4 

1ZO 

118 

120

Apr.

1ZO 

117 

117 

117 

12Z

145 

179 

Z1Z 

203 

ZOO

200 

230 

305 

335 

361

4Z9 

544 

579 

47Z 

530

517 

71Z 

986 

,150 

,Z40

,250 

,130 

,130 

,370 

,260

Secondfoot-daya

5,106 

3,318 

Z.546

Z60.828

2,178 

2,438 

3,678 

16.Z6Z 

46,180 

110,450 

50,146 

11,415 

5,563

Z59.Z80

May

,040 

,Z40 

,560 

,390 

,030

858 

705 

621 

726 

1,060

1,150 

1,190

1,060 

1,160 

1,700

1,660 

1,280 

1,150 

1,110 

1,130

1,000 

1,090 

1,380 

1,760 

2,2ZO

2,710 

2,660 

Z,870 

2,710 

2,740 

2.ZZO

Maximum

Z45 

140

90

6,370

78 

110 

160 

1,370 

Z.870 

8,000 

3.Z80 

607 

Z39

8,000

e 18 (9 p.m.) 9,500 sec.

June

1.7ZO 

1,410 

1,480 

1,570 

1,500

1,590 

1,490 

1,560 

Z,180 

3.Z60

3,900 

4,340 

4,880

4,640 

4,780

5,180 

5,960 

8,000 

6,980 

6,080

5,160 

4,680 

4,580 

4,OZO 

3,140

3,190 

3,440 

3,500 

3,Z30 

3,010

July

Z,990 

3.Z50 

3,280 

Z.9ZO 

Z.560

2,140 

Z.150 

1,970 

Z.040 

2,4SO

1,920 

1,700 

1,560 

1,510 

1,390

1,310 

1.Z60 

1,Z50 

1.Z90 

1.Z50

1,150 

1 , 050 

954 

96Z 

1,110

986

866 

810 

7Z6 

677 

635

Minimum

127 

78 

72

7Z

60 

7Z 

93 

117 

6Z1 

1,410 

635 

Z06 

15Z

60

-ft.

Aug.

657 

57Z 

565 

510 

498

484

551 

565 

593 

537

453 

405 

378 

356 

330

305 

305 

310 

Z80 

Z60

Z54 

Z45 

Z45 

251 

239

Z36 

Z30 

2Z1 

215 

209 

Z06

Mean

165 

111 

8Z.1

713

70.3 

87.1 

119 

542 

1,490 

3,68Z 

1,618 

368 

185

710

Sept.

206 

218 

Z09 

203 

194

188 

182 

179

176 

197

215 

Z39 

2Z1 

230 

Z06

194 

18Z 

173 

168 

162

160 

158 

158 

158 

155

15Z 

152 

152 

188 

188

Runoff In 

acre-feet

10,130 

6,580 

5,050

517,300

4.3ZO 

4,840 

7,300 

32,260 

91,600 

219,100 

99,460 

22,640 

11,030

514,300

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. ZO to Feb. Z7 (no gage-height record Jan. 

8-12);
316 SAN JUAN RIVER BASIN 

Animas River at Durango, Colo.

Location.- Water-stage recorder, lat. 37°17', long. 107°52', in sec. 20, T. 35 N., R. 9 

W., at Western Colorado Power Co.'s plant at Durango, half a mile upstream from 

Lightner Creek. Datura of gage is 6,501.57 feet above mean sea level, datum of 1929.

Drainage area.- 692 square miles.

Records available.- June 1895 to December 1905, January 1910 to December 1914, and

October 1933 to September 1949 in reports of Geological Survey. June 1895 to December 

1905 and December 1910 to September 1949 in reports, of State engineer.

Average discharge.- 48 years (1895-1900, 1901-5, 1910-49), 911 second-feet.

Extremes. - Maximum discharge during year,, 12,700 second-feet June 19 (gage height, 8.50 

feet), from rating curve extended above 8,200 second-feet; minimum daily, 138 secondfeet Jan. 4.

1895-1900, 1901-5, 1910-49: Maximum discharge, 25,000 second-feet Oct. 5, 1911 

(gage height, 11 feet), from rating curve extended above 7,000 second-feet; discharge 

of flood of June 29, 1927, 20,000 second-feet (gage height, 9.65 feet); minimum 

daily, 50 second-feet Dec. 22, 1917.

Remarks.- Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. Diversions above station for irrigation. Natural regulation 

by many lakes and artificial regulation for power.

Revisions.- W 764: Drainage area.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

406 

356 

330 

315 

330

330 

315 

305 

295 

290

282 

278 

278 

274 

274

266 

154 

243 

258 

270

?S3 

250 

246 

243 

240

240 

240 

274 

278 

262 

278

Nov.

262 

262 

270 

270 

266

246 

254

232 

226

226

243 

262 

250 

258 

240

243 

250 

254 

243

202

207 

*192 

189 

192 

197

184 

158 

189 

181 

179

Dec.

176 

179 

174 

b!70 

b!66

161 

174 

187 

181 

174

181 

184 

171 

184 

189

174 

176 

181 

171 

*156

179 

181 

192 

184 

151

168 

189 

192 

168 

179 

194

Jan.

189 

180 

170 

138 

145

140 

ISO 

166 

160 

170

189 

189 

205 

216 

*200

189 

171 

160 

167 

160

180 

184 

189 

193 

197

197 

187 

181 

176 

150 

154

Feb.

156 

158 

160 

160 

160

150 

140 

154 

150 

145

156 

170 

180 

190 

188

185 

*185 

187 

189 

190

193 

196 

198 

200 

216

210 

189 

184

Month

Onto 

Hove 

Dece

Ca

Janu 

Febn 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49

Mar.

189 

*181 

179 

189 

200

205 

205 

216 

207 

202

210 

210 

£05 

205 

216

236 

253 

264 

271 

301

293 

293 

297 

282 

271

253 

256 

249 

249 

246 

239

Apr.

256 

239 

236 

232 

239

267

320 

410 

420 

400

405 

510 

698 

797

842

905 

1,040 

1,270 

1,050 

1,000

990 

1,300 

1,820 

2,240 

2,420

2,620 

2,440 

2,200 

2,760 

2,800

Secondfoot-days

8,758 

6,827 

5,486

365,586

5,442

4,939 

7,272 

33,126 

85,790 

143,560 

64,193 

16,698 

8,618

390,709

May

2,370 

2,450 

3,100 

3,030 

2,350

1,990 

1,660 

1,390 

1,370 

1,910

2,520 

2,550 

2,340 

2,280 

3,060

3,300 

2,700 

2,340 

2,190 

2,270

2,040 

2,040 

2,340 

2,910 

3,280

4,100 

4,100 

4,770 

4,600 

4,520 

3,920

Maximum

406 

270 

194

7,500

r 216 216 

301 

2,800 

4,770 

10,700 

3,980 

851 

347

10,700

June

3,230 

2,640 

2,600 

2,620 

2,600

2,600 

2,510 

2,490 

2,820 

3,840

4,500 

4,980 

5,760 

5,700 

5,650

5,830 

6,520 

8,660 

10,700 

8,340

7,080 

6,060 

5,540 

5.650 

4,300

4,160 

4,100 

4,280

4,000 

3,800

Minimum

July

3,590 

3,740 

3,980 

3,660 

3,350

2,790 

2,630 

2,460 

2,400 

2,920

2,640 

2,350 

2,130 

2,050 

1,920

1,730 

1,640 

1,550 

1,580 

1,590

1,490 

1,360 

1,280 

1,250 

1,450

1,440 

1,240 

1,130 

1,050 

936 

867

240 

158 

151

151

138 

140 

179 

232 

1,370 

2,490 

867 

314 

240

138

Aug.

810 

779 

802 

771 

718

718 

756 

851 

826 

795

710 

624 

576 

543 

498

461 

437 

437 

419 

396

374 

358 

363 

363 

347

343 

343 

328 

319 

319 

314

Mean

283 

228 

177

999

176 

176 

235 

1,104 

2,767 

4,785 

2,071 

539 

287

1,068

Sept.

310 

310 

305 

301 

289

277 

285 

285 

277 

281

305 

338 

347 

343 

324

310 

297 

285 

265 

262

262 

258 

254 

258 

251

240 

244 

254 

277 

324

Runoff in 

acre-feet

17,370 

13,540 

10,880

725,100

10,790 

9,800 

14,420 

65,700 

170,200 

284,700 

127,300 

33,120 

17,090

774,900

Peak discharge (base, 4,000 sec. -ft.).- May 28 ( 5 p.m.) 4,940 sec. -ft. j June 19 (10 a.m.) 12,700

sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- Ho gage-height record Jan. 1-10, 18-24, Jan. 30 to Feb. 23 (stage-discharge relation 

affected by ice during part of periods); discharge computed on basis of 1 discharge measurement, 

weather records, and records for nearby stations.
SAN JUAN RIVER BASIN 317

Animas River near Cedar Hill, N. Mex.

Location.- Water-stage recorder, lat. 37°02'15", long. 107°52'25", in sec. 7, T. 32 N., R. 

9 W., three-quarters of a mile downstream from Florida River, 2.5 miles upstream from 

Colorado-New Mexico State line, and 8.5 miles north of Cedar Hill.

Drainage area.- 1,090 square miles.

Records available.- November 1933 to September 1949.

Average discharge.- 15 years (1934-49), 1,021 second-feet.

Extremes._- Maximum discharge during year, 13,100 second-feet June 19 (gage height, 11.45 

feet); minimum daily, 170 second-feet Jan. 4, 5.

1933-49: Maximum discharge, that of June 19, 1949: minimum daily, 90 second-feet 

Jan. 81,- 1935.

Maximum flood known occurred Oct. 5 or 6, 1911.

Remarks.- Records good except those for periods of ice effect or of no gage-height record, 

which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

446 

410 

377 

357 

365

369 

357 

337 

333 

329

325 

308 

308 

304 

300

300 

290 

272 

300 

269

297 

297 

286 

283 

280

283 

280 

365 

385 

322 

333

Nov.

297 

286 

286 

283 

280

255 

255 

255 

246 

240

252 

258 

249 

258 

252

255 

262 

262 

252

258

272 

252 

*246 

249 

249

237 

222 

b230 

*b225 

b210

Dec.

b200 

b210 

b200 

b200 

b!90

b!90 

b210 

*b220 

b210 

b200

b200 

b210 

b230 

219 

228

216 

210 

216 

b220 

*b200

201 

213 

234 

222

b200

b200 

b220 

*b230 

b210 

b210 

b210

Jan.

b210 

b200

b!90 

b!70 

b!70

b!80 

b200 

a230 

a250 

a300

a330 

a360 

a400 

*b400 

a350

a330 

*b300 

a250 

a23C 

a230

a250 

a290 

a290 

a290 

*b300

b280 

b250 

b230 

b220 

b210 

b210

Feb.

b220 

b250 

b250 

*b250 

b230

a210 

a200 

a200 

a200 

*a200

a200 

a210 

a210 

a200 

a2OO

a210 

a210 

a220 

a230 

a240

a260 

a270 

a280 

a300 

333

322 

300 

276

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

283 

283 

300 

329 

385

389 

432 

397 

345 

361

401 

397 

369 

365 

441

510 

550 

515 

520 

560

520 

515 

486 

450 

423

401 

377 

401 

405 

377 

361

Apr.

393 

389 

393 

450 

428

477 

545 

749 

762 

686

662 

827 

1,060 

1,220 

1,260

1,340 

1,480 

1,740 

1,580 

1,480

1,530 

1,790 

2,270 

2,680 

2,820

3,050 

2,950 

2,670 

3,150 

3,460

Secondfoot-days

10,067 

7,633 

6,529

413,141

8,100 

6,681 

12,848 

44,291 

103,140 

171,190 

75,030 

20,595 

10,347

47fi,451

Peak discharge (base, 4,000 sec. -ft.).- May 16 (11 a.n

May

2,950 

2,950 

3,680 

3,680 

2,950

2,500 

2,100 

1,760 

1,700 

2,180

3,260 

3,260 

2,950 

2,760 

3,570

3,880 

3,360 

2,860 

2,670 

2,670

2,500 

2,410 

2,760 

3,460 

3,990

4,720 

4,940 

5,450 

5,250 

5,250 

4,720

Maximum

446 

297 

234

8,400

400 

333 

560 

3,460 

5,450 

11,800 

4,520 

1,030 

436

11,800

June

4,100 

3,360 

3,360 

3,360 

3,360

3,360 

3,150 

3,150 

3,570 

4,620

5,350 

5,850 

6,650 

6,650 

6,450

6,650 

7,240 

9,330 

11,800 

9,900

8,570 

7,430 

6,650 

6,850 

5,650

5,250 

5,040 

5,140 

4,830 

4,520

July

4,300 

4,410 

4,520 

4,200 

3,880

3,260 

3,050 

2,860 

2,760 

3,360

3,260 

2,860 

2,580 

2,410 

2,250

2,030 

1,900 

1,830 

1,830 

1,830

1,700 

1,580 

1,460 

1,460 

1,580

1,640 

1,460 

1,300 

1,250 

1,140 

1,080

Minimum

269

210 

190

190

170 

200 

283 

389 

1,700 

3,150 

1,080 

344 

286

170

Aug.

1,010 

970 

1,010 

970 

910

936 

953 

1,030 

1,030 

1,010

910 

798 

735 

679 

620

570 

534 

524 

502 

480

465 

432 

427 

427 

414

404 

396 

387 

361 

357 

344

Mean

325 

254

211

1,129

261 

239 

414 

1,476 

3,327 

5,706 

2,420 

664 

345

1,305

.) 4,100 sec. -ft.; May 28 (1 p.m.

Sept.

340 

336 

357 

348 

344

336 

344 

344 

336 

344

391 

409 

436 

427 

418

391 

370 

352 

324 

324

320 

312 

304 

308 

301

286 

290 

290 

308 '357

Runoff In 

acre-feet

19,970 

15,140 

12,950

819,400

16,070 

13,250 

25,480 

87,850 

204,600 

339,600 

148,800 

40,850 

20,520

945,100

) 5,650

sec.-ft.; June 19 (12:30 p.m.; 13,100 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of available trace, weather records, discharge 

measurements, and records for stations at Durango and at Farmlngton.

b Stage-discharge relation affected by Ice.
318 SAN JUAN RIVER BASIN 

Animas River at Farmington, N. Mex.

Location.- Water-stage recorder, lat. 36°43'20", long. 108°12'00", in SE£ sec. 16, T. 29 

K., K. 13 W., at bridge on State Highway 17, 0.6 mile southeast of Farmington and 1.1 

miles upstream from mouth.

Drainage area.- 1,360 square miles.

Records available.- June 1904 to October 1905 (published as Animas River near Farmington). 

September 1912 to December 1914 and October 1930 to September 1949 in reports of Geological Survey. June 1904 to December 1931 in reports of State engineer.

Average discharge.- 36 years (1912-25, 1926-49), 1,031 second-feet.

Extremes.- Maximum discharge during year, 11,200 second-feet June 19 (gage height, 8-.4S 

reet); minimum daily, 18 second-feet Sept. 8.

1930-49: Maximum discharge, 12,800 second-feet May 14, 1941 (gage height, 8.9 feet, 

from graph based on gage readings), from rating curve extended above 7,700 second-feet 

by logarithmic plotting; minimum daily, 8.5 second-feet Aug. 18, 1940.

Maximum flood known occurred Oct. 5, 1911; stage was about 16.5 feet as determined 

from a study made in 1949.

Remarks.- Records good. Diversions above station for irrigation. Records of chemical 

analysis for the water year 1949 are given in Water-Supply Paper 1163.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

427 

386 

364 

364 

364

376 

386 

332 

312 

291

286 

277 

277 

267 

248

230 

222 

218 

239 

248

317 

277 

272 

258 

239

222 

230 

454 

508

410 

404

Nov.

386 

354 

337 

332 

332

312 

301 

306 

291 

262

277 

291 

296 

277 

296

281 

286 

291 

281 

281

272 

291 

296 

301 

312

301 

286 

286 

272

281

Dec.

262 

*258 

244 

226 

b220

b230 

*b240 

b250 

b240 

b2iBO

286 

291 

291 

267 

286

277 

*253 

248 

248 

258

235 

272 

306 

296 

277

235 

281 

301 

281 

*258 

248

Jan.

b240 

b230 

b210 

b!90 

alSO

blSO 

b!8o 

b200 

b220 

*b270

b350 

b400 

b420 

b420 

b400

b350 

b320 

b280 

*b250 

b250

b280 

b300 

b300 

b320 

b320

b300 

*b270 

b250 

b240 

b230 

b230

Feb.

b250 

*b270 

b270 

b270 

b250

b230 

b220 

b210 

*b210 

DZ10

b220 

b230 

b230 

b220 

b210

*b220 

230 

272 

277 

286

342 

370 

416 

*433 

439

439 

410 

392

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948

ter year 1948-49 .......................

Mar.

342 

337 

332

370 

398

433 

470 

521 

422 

392

422 

489 

476 

464 

470

548 

662 

625 

562 

625

596 

575 

534 

495 

464

445 

398 

427 

433 

416 

398

Apr.

416 

445 

457 

514 

514

528 

596 

707 

874 

754

684 

762 

980 

1,160 

1,230

1,270 

1,370 

1,560 

1,580 

1,330

1,310 

1,4'40 

1,940 

2,590 

2,800

3,010 

3,010 

2,730 

2,940 

3,240

Secondfoot-days

9,705 

8,968 

8,115

394,839

8,580 

8,026 

14,541 

42,741 

94,690 

158,040 

62,674 

14,304 

3,702

434,086

Peak discharge (base, 3,000 sec. -ft.).- Apr. 26 (7 p.m

May

3,010 

2,730 

3,240 

3,540 

3,080

2,520 

2,120 

1,760 

1,560 

1,760

2,730 

2,940 

2,800 

2,520 

2,940

3,540 

3,240 

2,730 

2,450 

2,380

2,260 

2,060 

2,190 

2,660 

3,160

3,940 

4,520 

5,290 

5,290 

4,950 

4,780

Maximum

508 

386 

306

8,730

420 

439 

662 

3,240 

5,290 

11,000 

3,860 

932 

206

11,000

.) 3,240 sec

June

3,940 

3,240 

2,800 

2,870 

2,800

2,800 

2,730 

2,590 

2,800 

3,620

4,610 

5,120 

5,650 

6,370 

6,370

6,550 

6,910 

8,620 

11,000 

10,200

8,250 

6,900 

6,400 

6,400 

5,650

4,850 

4,750 

4,650 

4,450 

4,150

July

3,760 

3,760 

3,860 

3,660 

3,290

2,870 

2,640 

2,560 

2,410 

2,560

3,030 

2,560 

2,260 

2,050 

1,920

1,720 

1,530 

1,420 

1,340 

1,360

1,350 

1,200 

1,080 

1,030 

1,350

1,380 

1,180 

1,000 

932 

833 

779

Minimum

218 

262 

220

65

180 

210 

332 

416 

1,560 

2,590 

779 

142 

18

18

.-ft.; Apr

Aug.

746 

a720 

a740 

a 700 

a660

a640 

a66O 

682 

932 

815

738 

645 

540 

a470 

424

369 

522 

405 

345 

301

270 

245 

227 

236 

223

206 

189 

185 

177 

150 

142

Mean

313 

299 

262

1,079

277 

287 

469 

1,425 

3,055 

5,268 

2,022 

461 

123

1,189

Sept.

124 

104 

91 

66 

37

33 

26 

18 

28 

28

91 

161 

165 

201 

206

193 

197 

177 

177 

153

142 

142 

13f> 

135 

150

153

131 

131 

142 

165

Runoff In 

acre-feet

19,250 

17,790 

16,100

783,200

17,020 

15,920 

28,840 

84,780 

187,800 

313,500 

124,300 

28,370 

7,340

861,000

. 30 (3 p.m.) 3,310

see.-ft.; May 3 (8p.m. . _._..._.., _._ _. ,. ,....., _,..... _ . .... . .

ft.; June 19 (7:45 p.m.) 11,200 sec.-ft.; July 11 (7 p.m.) 3,570 see^-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records, discharge measurements, 

and records for stations at Durango and near Cedar Hill.

b Stage-discharge relation affected by Ice.
SAN JUAN RIVER BASIN 319

Cement Creek near Silverton, Colo.

Location - Water-stage recorder, lat. 37°51'20", long. 107°40'35", In sec. 31, T. 42 N., 

K . Y W . , at Yukon mine, 0.2 mile downstream from Porcupine Gulch and 3 miles northwest 

of Silverton. Datum of gage is 9,880.28 feet above mean sea level (Bureau, of Reclamation bench mark) .

Drainage area . - 13.5 square miles.

Records available . - May 1936 to September 1937, July 1946 to September 1949 (discontinued)

Extremes.- Maximum discharge during year, 395 second-feet June 18 (gage height, 3.65

reet) , from rating curve extended above 230 second-feet; minimum, 1.9 second-feet Dec. 

23 (gage height, 0.99 foot), from rating curve extended below 8 second-feet.

1936-37, 1946-49: Maximum discharge, 547 second-feet July 18, 1936 (gage height, 

4.45 feet), by slope-area method; minimum discharge, 1.4 second-feet Feb. 28, 1947, 

Feb. 29, 1948; minimum gage height, 0.92 foot Feb. 29, 1948. 

Maximum flood known occurred Oct. 5, 1911.

emarks.- Records good above 40 second-feet and fair below. 

returned to creek above station.

All upstream diversions

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

12

12 

12 

12 

12

12 

12 

12

12 

12

12 

12 

12

12 

12

12 

11 

11 

12 

11

11 

11 

11

11 

11

11 

11 

12 

11 

11 

11

Nov.

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

10 

11 

11

10 

10

11

10li.

10 

10 

9.8 

11 

10

Dec.

10 

10 

10 

9.8

10

10 

10 

10 

10 

10

10 

10 

10 

10 

10

10 

10 

9.8 

10

10

10 

7.6 

6.0 

10 

11

10 

10 

9.8 

9.8 

9.8 

9.8

Jan.

9.8 

9.8 

9.8 

9.0 

7.8

8.6 

9.2 

9.4 

9.6 

9.6

9.8 

9.6 

9.4 

9.4 

9.4

9.4 

9.4 

9.2 

9.2 

9.6

9.6 

9.6 

8.4 

9.4 

10

10 

9.6 

9.8 

9.4 

10 

9.8

Feb.

9.6 

9.6 

9.6 

9.8 

9.8

9.6 

9.8 

9.6 

9.8 

9.8

9.8

10 

9.6 

10 

10

10 

10 

10 

9.8 

9.6

9.6 

9.8 

9.4 

9.4 

9.6

9.4

9.2 

9.2

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

apy

ter year 1948-49 .......................

Mar.

9.2 

9.2 

9.0 

9.0 

9.0

9.0 

8.8 

8.8 

8.8 

8.8

8.6 

8.6 

8.6 

8.4 

8.6

8.8 

8.8 

9.0 

9.0 

9.2

9.0 

9.2 

9.2 

9.2 

9.2

9.4 

9.4 

9.4 

9.4 

9.4 

9.4

Apr.

9 4 

9 6 

9 6 

9 6 

9 6

10 

10 

11 

10 

10

10 

11 

12 

13 

14

16 

18 

19 

17 

18

18 

24 

39 

52 

52

44 

35 

37 

54 

44

Secondfoot-days

359 

321.8 

303.4

12,976.7

292.6 

271.4 

279.4 

645.8 

2,080 

5,378 

2,610 

669 

346.4

13,556.8

May

32 

50 

72 

59 

42

29 

22 

20 

26 

39

37 

43 

37 

64 

77

69 

52 

43 

44 

49

42 

53 

82 

116 

135

138 

124 

122 

122 

138 

102

Maximum

12 

11 

11

282

10 

10 

9.4 

54 

138 

320 

168 

34 

15

320

June

79 

61 

65 

66 

65

74 

69 

70 

96 

170

210 

232 

275 

260 

270

275 

272 

320 

268 

255

245 

245 

202 

175 

163

170 

188 

190 

178 

170

July

168 

163 

165 

156 

131

118 

120 

111 

111 

129

109 

98 

84 

79 

72

66 

67 

64 

65 

61

55 

49 

46 

47 

48

43 

41 

38 

37 

35 

34

Minimum

11 

9.8 

6.0

5.6

7.8 

9.2 

8.4 

9.4 

20 

61 

34 

15 

9.2

6.0

Aug.

34 

32 

31 

30

30

30 

32 

28 

27 

24

22 

21 

20 

20 

19

18 

20 

19 

18

17

16 

16 

17 

17 

17

17 

16 

16 

15 

15 

15

Mean

11.6 

10.7 

9.79

35.5

9.44 

9.69 

9.01 

21.5 

67.1 

179 

84.2 

21.6 

11.5

37.1

Sept.

15 

15 

15 

14 

14

14

14 

13 

13 

14

15

13 

12 

12 

10

10 

9.8 

9.8 

9.6 

9.6

9.2 

9.4 

9.2 

9.4 

9.4

9.4 

9.2 

9.6 

10 

9.8

Runoff In 

acre-feet

712 

638 

602

25,740

580 

538 

554

1,280 

4,130 

10,670 

5,180 

1,330 

687

26,900

Peak discharge (base, 200 see.-ft.).- June 18 (9 p.m.) 395 sec.-ft. 

Note.- No gage-height record Jan.5Tl7; discharge computed on basis of recorded range In stage and 

weather records.
320

SAN JUAN RIVER BASIN 

Mineral Creek near Silverton, Colo.

Location.- Water-stage recorder, lat. 37°48'50", long. 107°41'45", in sec. 13 T. 41 N., R. 

8 W., 50 feet from U. S. Highway 550, 300 feet upstream from Bear Creek, and 2 miles west 

of Silverton. Datum of gage is 9,399.04 feet above mean sea level, datum of 1929.

Drairiage area.- 43.9 square miles.

Records available.- May 1936 to September 1949 (no winter records 1936-39} discontinued.

Average discharge.- 10 years (1939-49), 109 second-feet.

Extremes.- Maximum discharge during year, 1,480 second-feet June 18 (gage height, 4.59 feet); 

from rating curve extended above 750 second-feet; minimum daily, 12 second-feet Dec. 25.

1936-49: Maximum discharge, 1,700 second-feet June 29, 1938 (gage height, 4.69 feet), 

from rating curve extended above 750 second-feet; minimum, 3.4 second-feet Mar. 14, 1944 

(gage height, 0.83 foot).

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for periods of ice effect, which are fair. No diversion 

above station.

Rating table, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-12, July 11 to Sept. 30)

1.0 11 1.5 49 2.8 450 

1.1 15 1.6 65 3.3 685 

1.2 21 1.7 84 4.0 1,100 

1.3 28 1.9 135 

1.4 37 2.3 260

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

42 

39 

36 

37 

42

41 

36 

37 

38 

37

35 

34 

34 

35 

35

33 

31 

30 

32 

32

30 

28 

27 

27 

25

25 

25 

25 

24 

27 

27

Nov.

27 

27 

27 

25 

23

22 

26 

24 

22 

24

24 

23 

23 

23 

23

23 

23 

20 

21 

22

20 

20 

21 

22 

22

22 

19 

19 

*21 

20

Dec.

20 

IS 

19 

19 

20

20 

19 

18 

19 

19

19 

19 

19 

18 

17

18 

19 

17 

17 

18

18 

17 

16 

13 

blE

b!7 

19 

19 

18 

19 

18

Jan.

18 

16

17 

b!5 

b!7

blS 

b!9 

b!8 

b!8 

b21

20 

19 

19 

15 

*20

17 

18 

b!7 

b!7 

b20

blS 

19 

16 

15 

14

16 

18 

20 

b!8 

b!7 

blS

Feb.

b!7 

bis 

b!8 

b!8 

18

18 

19 

19 

19 

20

*19 

18 

14 

17 

18

17 

16 

16 

16 

15

15 

15 

15 

14 

16

15 

15 

15

Month

Cteto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

V(t

lendar year 1948

ter year 1948-49 .......................

Mar.

15 

15 

15 

15 

15

15 

16 

16 

15 

15

15 

15 

14 

15 

16

17 

17 

16 

17 

19

17 

17 

17 

17 

17

17 

16 

16 

16 

16 

16

Apr.

16 

16 

16 

16 

16

17 

20 

21 

19 

19

19 

24

31 

34 

39

47 

62 

69 

59 

62

60 

84 

124 

144

150

144 

130 

141 

174 

156

Secondfoot-days

1,006 

678 

559

40,395.8

548 

470 

495 

1,929 

5,876 

16,856 

11,834 

2,556 

1,181

43,988

Peak .discharge (base, 700 sec. -ft.).- June 18 (10 p.m.

May

132 

168 

213 

189 

144

122 

101 

86 

101 

130

132 

144 

130 

153 

204

201 

165 

150 

141 

150

135 

147 

186 

225 

£74

323 

326 

342 

330 

334 

298

Maximum

42 

27 

20

690

21 

20 

19 

174 

342 

1,080 

690 

141 

54

1,080

June

242

204 

213 

219 

216

232 

222 

236 

302 

410

477 

576 

620 

580 

605

685 

860 

1,080 

1,080 

968

848 

782 

752 

702 

580

615 

650 

670 

625 

605

July

615 

690 

675 

640 

610

522 

513 

495 

504 

513

450 

418 

378 

390 

374

342 

330 

316 

323 

320

284 

253 

236 

236 

278

232 

204 

192 

177 

165 

159

Aug.

141 

132 

130 

116 

116

116 

127 

124 

124 

111

96 

89 

82 

76 

71

67 

71 

67 

63 

60

57 

55 

57 

57 

55

54 

51 

49 

48 

47 

47

Minimum Mean

24 32.5 

19 22.6 

IE 18.0

8.8 110

14 17.7 

14 16.8 

14 16.0 

16 64.3 

86 190 

204 562 

159 382 

47 82.5 

29 39.4

12 121

1,480 sec. -ft.; June 27 (8 p.m.'

Sept.

47 

48 

45 

44

42

42 

39 

38 

39 

44

54

51 

52 

51 

45

41

38 

37 

35 

34

33 

32 

32 

32

31

30 

29 

29 

35 

32

Runoff in 

acre-feet

2,000 

1,340 

1,110

80,130

1,090 

932 

982 

3,830 

11,650 

33,430 

23,470 

5,070 

2,340

87,240

824 sec.-

ft.; July 2 (6 p.m.) 866 sec.-ft.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SAN JUAN RIVER BASIN

321

Hermosa Creek near Hermosa, Colo.

Location.- Water-stage recorder, lat. 37°25'30", long. 107°50'15", in NW£ sec. 3, T. 36 N., 

K. 9 W., 1 mile northwest of Hermosa and 2 miles upstream from mouth. Datum of gage Is 

6,705.88 feet above mean sea level, datum of 1929.

Drainage area.- 172 square miles.

Records available.- November 1911 to June 1912, April 1913 to September 1914 (fragmentary), 

ana uctober 1940 to September 1949 in reports of Geological Survey. April 1913 to September 1914, April 1920 to September 1928 (no winter records prior to 1928), and October 

1940 to September 1949 in reports of State engineer. Figures for flood of May and June 

1920, published in reports of State engineer, are considered too high from information 

by his office.

Extremes.- Maximum discharge during year, 2,230 second-feet June 19 (gage height, 3.98 

feet), from rating curve extended above 1,700 second-feet; minimum daily, 17 secondfeet Nov. 28.

1920-28, 1940-49: Maximum discharge, 3,040 second-feet Sept. 12, 1927 (gage height, 

8.50 feet, from floodmarks, site and datum then in use), by slope-area method; minimum 

daily, 10 second-feet Feb. 6-17, 1946.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

27 

25 

24 

24 

24

26 

24 

23 

23 

23

22 

22 

22 

22 

22

22 

21 

20 

24 

25

24 

23 

23 

22 

22

21 

21 

27 

23

30 

30

Nov.

30 

*30 

30 

31 

26

25 

27 

24 

27 

26

26 

27 

30 

28 

24

24 

24 

26 

24

b28

26 

24 

28 

30 

26

29 

18 

17 

b!9 

*b22

Dec.

b22 

b22

b21 

b21 

20

22 

21 

22 

22 

22

22 

22 

22 

23 

22

21 

22 

23 

22 

21

22 

22 

21 

21 

20

20 

20 

21 

21 

20 

20

Jan.

20 

19 

19 

19 

19

20 

20 

20 

20 

20

20 

20 

*20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

19

19 

19 

19 

19 

19 

b!9

Feb.

b!9 

b!9 

b!9 

b!9 

b!9

b!9 

b!9 

b!9 

b!9 

b!9

*b!9 

19 

19 

19 

18

18 

18 

18 

18 

19

19 

20 

21 

22 

23

23 

22 

22

Month

Oeto 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

.endar year 1948 

iry

ter year 1948-49 .......................

Peak discharge (base, 800 sec. -ft.).- Apr.

Mar.

22 

21 

22 

23 

24

24 

24 

*24

b24 

27

26 

26 

26 

26 

30

*40 

54 

64 

78 

108

82 

82 

76 

59 

52

45 

42

44 

44 

40 

39

Apr.

40 

38 

36 

34 

40

59 

108 

150 

134 

134

158 

246 

330 

354 

354

374 

367 

462 

374 

348

395 

574 

780 

840 

890

980 

860 

730 

920 

890

Secondfoot-days

731 

776 

663

58,946

609 

547 

1,318 

11,999 

25,108 

21,383 

5,434 

1,981 

1,000

71,549

26 (1 a.m.)

May

703 

790 

985 

840 

624

546 

455 

396 

427 

592

870 

790

712 

770 

1,050

1,020 

712 

667 

667 

685

632 

640 

730 

860 

1,040

1,170 

1,220 

1,450 

1,240 

985 

840

Maximum

30 

31 

23

1,850

20 

23

108 

980 

1,450 

1,600 

360 

136 

45

1,600

June

658 

616 

724 

649 

667

632 

624 

640 

667 

703

694 

740 

900 

800 

760

810 

960 

1,600 

1,510 

910

721 

624 

546 

584 

511

483 

455 

427 

402 

366

July

345 

360 

340 

310 

295

252 

248 

220 

204 

275

232 

220 

200 

180 

157

139 

129 

116 

110 

103

98 

93 

100 

103 

132

105 

86 

81 

72 

66 

63

Minimum

20 

17 

20

17

19 

18 

21 

34 

396 

366 

63 

38 

26

17

1,160 sec. -ft.; May 2

Aug.

63 

73 

82 

66 

73

91 

120 

136 

113 

96

81 

73 

66 

62 

60

57 

55 

54 

51 

48

45 

44 

44 

45 

43

42

41 

40 

40 

39 

38

Mean

23.6 

25.9 

21.4

161

19.6 

19.5 

42.5 

400 

810 

713 

175 

63.9 

33.3

196

(11 p.m.)

Sept.

38 

40 

39 

38 

36

38 

37 

36 

37

41

44 

45 

35 

35 

32

31 

29 

29 

28 

27

26 

26 

26 

28 

28

27 

26 

26 

32 

40

Runoff In 

acre-feet

1,450 

1,540 

1,320

116,900

1,210 

1,080 

2,610 

23,800 

49,800 

42,410 

10,780 

3,930 

1,980

141,900

1,170 sec.-

sec.-ft.

* Winter discharge measurement made on this day. 

b Stage-discharge Stage-discharge relation relation affected affected by Ice.

Note.- No gage-height record Dec. 5 to Jan. 12, Feb. 12 to Mar. 8 (stage-discharge relation affected 

by Ice during part of periods); discharge computed on basis of 1 discharge measurement, weather records, and records for stations on nearby streams.
322

SAN JUAN RIVER BASIN

Lightner Creek near Durango, Colo.

Location.- Water-stage recorder, lat. 37°16', long. 107°53>, in sec. 30, T. 35 N., R. 9 

W., half a mile upstream from mouth and half a mile west of Durango.

Drainage area.- 66 square miles.

Records available.- October 1933 to September 1949 (at site 2 miles upstream), October 

1939 to September 1949 (discontinued) in reports of Geological Survey. June 1927 to 

September 1939 (at site 2 miles upstream), October 1939 to September 1949 in reports 

of State engineer.

Average discharge.- 22 years, 22.7 second-feet.

Extremes.- Maximum discharge during year, 981 second-feet Jun<- 18 (gage height, 4.18 

feet); minimum daily recorded, 1.5 second-feet Nov. 8, 9, 12, Aug. 29, Sept. 2.

1927-49: Maximum discharge, 2,500 second-feet Oct. 25, 1941 (gage height, 5.90 

feet), from rating curve extended above 690 second-feet on basis of slope-area determination at gage height 5.20 feet; minimum daily, 1 second-foot or less at times 

during periods 1930-31, 1933-35, 1938-40, 1945-46.

Remarks - Records good except those for periods of no gage-height record, which are 

poor. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

2.3

2.4 

2.3

2.1 

2.3

2.3 

2.1 

2.0 

2.1 

2.0

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

2.1 

2.1

1.8 

1.8 

1.8 

1.8 

1.7

1.6 

2.0 

2.8 

2.3

2.4 

2.3

Nov.

2.0 

2.0 

2.3 

2.0 

1.8

2.0 

2.0 

1.5 

1.5 

2.0

i.e

1.5 

1.6 

1.6 

1.6

1.6 

2.0 

1.6 

1.8

2.1

2.3 

*2.8 

2.9 

3.4 

3.2

3.1 

2.8 

2.8 

2.8 

2.9

Dec.

> 2.0

Jan.

> 2.0

Feb.

> 2.2

Month

Goto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

(»)

> 4.0

1"

25 

28 

32 

39 

57

*48 

45 

35 

27 

25

21 

24 

30 

29 

24 

24

Apr.

23 

23 

25 

42 

75

90 

96 

128

122 

100

117 

153 

162 

142 

137

145 

143 

145 

110 

107

114 

138 

171 

184 

189

191 

182 

148 

165 

143

Secondfoot-days

62.8 

65.3 

62.0

8,661.1

62.0 

61.6 

628.0 

3,710 

3., 027 

2,175 

636 

174.0 

98.6

10,762.3

May

118 

134 

151 

128

102

88 

73 

61 

61 

86

117 

102 

87 

90 

107

110 

96 

84 

73 

69

63 

61 

68 

90 

104

118 

122 

156 

122 

104 

82

Maximum

2.8 

3.4

180

57 

191 

156 

228 

38 

11 

6.4

228

June

75 

66 

69 

64 

61

55 

54 

56 

56 

67

69 

72 

85 

81 

74

75 

85 

228

158 

103

82 

72 

67 

65 

52

45 

39 

36 

33

31

July

27 

27 

25 

23 

22

21 

21 

20 

18 

31

36 

31 

25 

38 

31

24 

18 

18 

16 

15.

12 

11 

12 

16 

20

18 

14 

13 

11 

11 

11

Minimum

1.6

1.5

-

23 

61 

31 

11 

1.5 

1.5

-

Aug.

9.0 

10 

7.4 

5.6 

6.6

11 

11 

11 

11 

10

8.6 

7.4 

7.8 

7.0 

6.6

7.0 

6.5 

2.4 

2.4 

2.8

2.4

2.4 

2.4 

2.4 

2.4

2.4

1.9 

1.8 

1.5 

1.6 

1.7

Mean

2.03 

2.18 

2.0

23.7

2.0 

2.2 

20.3 

124 

97.6 

72.5 

20.5 

5.61 

3.29

29.5

Sept.

1.7 

1.5 

1.7 

1.6 

2.8

2.4 

4.0 

2.8 

2.0 

2.0

3.6 

2.8 

4.0 

4.4 

3.2

5.2 

6.4 

5.6 

5.2 

4.8

5.6 

4.0 

1.7 

2.8 

2.4

2.8 

3.2 

2.8 

2.8 

2.8

Runoff In 

acre-feet

125 

130 

123

17,170

123 

122

1,250 

7,360 

6,000 

4,310 

1,260 

345 

196

21,340

Peak discharge (base, 220 see.-ft. K- June 18 (3 a.m.) 981

* Winter discharge measurement made on this day.

Note.- Ho gage-height record Oct. 24, 25, Dec. 1 to Mar. 18 (stage-discharge relation affected by 

Ice during most of period); discharge computed on basis of 1 discharge measurement, weather records, 

and records for nearby stations.
SAN JUAN RIVER BASIN

323

Florida River near Durango, Colo.

Location.- Water-stage recorder, lat. 37°20', long. 107°45', in sec. 4, T. 35 N., R. 8 W., 

Just downstream from Red Creek and 9 miles northeast of Durango. Datum of gage is 

7,301.88 feet above mean sea level, datum of 1929.

Drainage area.- 96 square miles.

Records available.- May to July 1899, April 1901 to October 1903, September 1910 to September 1912, and October 1933 to September 1949 in reports of Geological Survey. May 

to July 1899, April 1901 to October 1903, September 1910 to September 1924, and April 

1927 to September 1949 in reports of State engineer. Station has been located at several different sites in this vicinity; all records equivalent.

Average discharge.- 3l years (1910-12, 1917-24, 1927-49), 121 second-feet.

Extremes.- Maximum discharge during year, 2,080 second-feet June 19 (gage height, 5.30 

reetJ, from rating curve extended above 1,440 second-feet; minimum not determined.

1899, 1901-3, 1910-24, 1927-49: Maximum discharge observed, 4,640 second-feet June 

28, 1927; maximum gage height, that of June 19, 1949; minimum daily discharge, 0.4 

second-foot Feb. 15, 1918.

Maximum flood taiown occurred Oct. 5, 1911,

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

41 

37 

34 

32 

31

31 

30 

30 

28 

26

24 

25 

24 

22 

23

21

20 

17 

21 

22

20 

18 

17 

16 

14

14 

14 

20 

16 

21 

21

Nov.

19

18 

19 

20 

*14

14 

17 

14 

14 

17

16 

14 

14 

14 

12

12 

12

11 

10 

10

9.0

no 

11

9.7 

10

9.4 

8.4 

8.0 

9.0

9.0

Dec.

> 7.8

' 6.3 { )

 7.8 

(*)

Jan.

> 9.6

> 9.2

(*) 

> 8.4

Feb.

> 7.0

' 6.0

(*)

' 6.0

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc, 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar.

7.2

7.0 

7.6 

9.2 

10

10

11

12

11 

11

11 

12 

12 

11 

15

19 

22 

25 

37 

40

*36 

31 

30 

26 

24

22 

22

24 

£4 

22

21

Apr.

21 

20 

20 

18 

24

39 

53

70 

64 

64

74 

106 

132 

142 

144

152 

172 

188 

168

163

177 

218 

£53 

272 

282

310 

302 

288 

335 

347

Secondfoot-days

730 

384.5 

226.8

49,509.5

280.4 

178.0 

582.0 

4,618 

12,771 

23,902 

7,244 

1,144 

407.4

52,468.1

May

328 

367 

439 

425 

350

299 

253 

222 

222 

296

371 

354 

324 

320 

407

448 

398 

362 

324 

320

292 

296 

324 

425 

511

683 

683 

747 

694 

689 

598

Maximum

41 

20

1,130

40 

347 

747 

1,460 

630 

70 

21

1,460

June

536 

486 

562 

556 

582

609 

501 

477 

624 

813

843 

891 

947 

922 

978

1,010 

1,080 

1,460 

1,450 

1,130

972 

855 

855 

855 

700

683

683 

656

609 

577

July

562 

630 

526 

443 

367

306 

292 

272 

247

416

313 

253 

225 

205 

191

168 

159 

141 

135 

129

113 

109 

119 

148 

175

141 

117

100 

89 

79 

74

Minimum

14 

8.0

- I

7.0 

18 

222 

477 

74 

13 

9.8

-

Aug.

70 

63 

61 

60 

54

54 

60 

57 

64 

64

53 

47 

43 

39 

36

33 

30 

29 

26 

22

20 

19

19 

17 

16

16 

16 

15 

15 

13 

13

Mean

23.5 

12.8

7.3

135

9.0 

6.4 

18.8 

154 

412 

797 

234 

36.9 

13.6

144

Sept.

12 

13 

13 

12 

11

10 

9.8 

9.8 

9.8 

12

15 

16

16 

19 

19

18 

16 

15 

14 

12

11 

10 

11 

12 

12

13 

13 

14 

18 

21

Runoff in 

acre-feet

1,450 

763 

450

98,190

556 

353 

1,150 

9,160 

25,330 

47,410 

14,370 

2,270 

808

104,100

Peak discharge (base, 550 see.-ft.).- May 28 (l a.m.) 795 sec.-ft.; June 6(3 a.m.) 673 sec.-ft.; 

June 19 (1 a.m7) 2,080 sec.-ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. 19 to Mar. 2O (stage-discharge relation affected by ice during 

most of period}; discharge computed on basis of 5 discharge measurements, weather records, and records for nearby stations.
324 SAN .JUAN RIVER BASIN

La Plata River at Hesperus, Colo.

Location.- Water-stage recorder, lat. 37°IV, long. 108°02', in sec. 14, T. 35 N., R. 11 

W., a short distance upstream from U. S. Highway 160 and an eighth of a mile west of 

Hesperus. Datum of gage is'8,106.65 feet above mean sea level, datum of 1929,

Drainage area.- 37 square miles.

Records available.- June to August 1904, April to August i906, August to December 1910, 

ana October 1933 to September 1949 in reports of Geological Survey. June to August 

1904, April to August 1906, August to December 1910, and May 1917 to September 1949 in 

reports of State engineer.

Average discharge.- 32 years (1917-49), 48.1 second-feet.

Extremes.- Maximum discharge during year, 850 second-feet June 18 (gage height, 3.15

reet); from rating curve extended above 460 second-feet; minimum daily, 3.5 second-feet 

Jan. 5, 30.

1904, 1906, 1910, 1917-49: Maximum discharge, 1,880 second-feet Sept. 22, 1941 

(gage height, 4.30 feet), by slope-area method; no flow Apr. 4, 1906.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those above 350 second-feet and those for period of no gageheight record, which are fair. One diversion above station for irrigation.

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21. 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.8 

6.5 

6.5 

6.5 

6.5

6.5 

6.5 

6.5 

7.1 

7.7

7.7 

8.0 

7.7 

7.7 

7.4

7.1 

6.8 

6.8 

8.8 

7.1

6.8 

6.5 

6.2 

6.2 

6.2

6.2 

6.2 

6.8 

6.5 

6.8 

7.1

Nov.

6.8 

6.5 

6.5 

6.5 

6.2

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.6 

*5.6

5.6 

.5.6 

5.3 

5.0 

4.7

4.7 

4.8 

*5.2 

6.0 

5.5

5.0 

4.4 

4.0 

5.0 

5.2

Dec.

5.6 

5.8 

7.2 

6.0 

5.5

7.6 

*7.0 

8.0 

7.6 

8.6

9.0 

9.8 

9.6 

9.4 

8.9

7.8 

8.2 

8.0 

7.8 

9.0

9.6 

9.2 

9.6 

7.0 

6.6

8.5 

9.2 

9.0 

*8.0 

8.8 

9.4

Jan.

9,9 

9.0 

5.4 

3.7 

3.5

4.0 

4.5 

4.5 

5.8 

6.4

7.2 

7.8 

8.0 

7.2

6.0

5.5

4.5 

*4.9 

5.0 

5.5

5.8 

5.7 

5.8 

6.0 

5.7

5.5 

5.2 

4.7 

4.0 

3.5 

3.8

Feb.

4.0 

5.0 

4.8 

4.8 

5.2

3.8 

4.7 

5.8 

4.6 

4.2

*6.4 

9.0 

7.8 

6.2 

4.3

4.6 

4.7 

4.8 

5.0 

5.2

5.4 

5.5 

*5.6 

5.4 

5.6

5.4

6.0 

6.8

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 ........

ter year 1948-49 ...............

Peak discharge (base. 230 sec. -ft.).- Aor.

Mar.

7.4 

7.0 

7.4 

8.3 

8.0

8.8 

9.0 

8.0 

7.4 

8.4

8.2 

8.0 

7.5 

7.2

8.0

9.0 

9.0 

9.2 

9.6 

9.9

9.0 

*8.3 

8.0 

7.5 

7.5

7.0 

7.5 

8.0 

8.5 

7.5 

8.0

Apr.

8.5 

9.0 

10 

*11

11

12 

13 

13 

14

15

18 

27 

38 

47 

54

96 

101 

119 

96 

91

101 

151 

199 

215 

260

246 

222 

193 

238 

202

Secondfoot-days

213.7 

164.5 

251.3

17,462.6

174.0 

150.6 

252.1 

2,830.5 

5,568 

10,400 

2,558 

851 

259.5

23,673.2

25 (11:30 p

May

137 

196 

235 

196 

J54

126 

110 

90 

84 

120

156 

150 

131 

139 

188

217 

167 

131

108 

110

105 

120 

176 

210 

256

271 

324 

324 

324 

289 

224

Maximum

8.8 

6.8 

9.8

387

9.9 

9.0 

9.9 

260 

324 

743 

145 

74 

11

743

June

217 

173 

224 

204 

198

192 

182 

185 

227 

274

286 

349 

400 

514 

561

562 

622 

743 

562 

492

451 

442 

404 

408 

362

349 

256 

236 

186 

139

July

122 

136 

134 

109 

92

78 

76 

68 

78 

142

139 

145 

120 

109 

92

78 

74 

68 

68 

60

47 

42 

42 

45 

74

62 

53 

55 

52 

49 

49

Minimum

6.2 

4.0 

5.6

4.0

3.5 

3.8 

7.0 

8.5 

84 

139 

42 

10 

7.5

3.5

.m.) 285 see. -ft.; May

Aug.

50 

46 

43 

37 

38

49 

74 

62 

53 

42

34 

29 

26 

24 

22

20 

19 

17 

16 

17

16 

15 

14 

13 

12

10 

12 

11 

10 

10 

10

Mean

6.89 

5.48 

8.11

47.7

5.61 

5.38 

8.13 

94.4 

180 

347 

82.5 

27.5 

8.65

64.9

3 (2 a.m.)

Sept.

10 

9.5 

9.0 

9.0 

7.5

7.5 

7.5 

7.5 

7.5 

8.5

10 

10 

11 

10 

10

10 

9.5 

9.0 

8.5 

8.5

8.0 

8.0 

8.0 

8.0 

8.0

8.0 

7.5 

7.5 

8.5 

8.0

-Runoff in 

acre -feet

424 

326 

498

34,620

345 

299 

500 

5,610 

11,040 

20,630 

5,070 

1,690 

515

46,950

421

see.-ft.; May 27 ill p.m.; 443 see.-ft.; June 18 (9 p.m.) 850 see.-ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. z\ to Apr. 3 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 7 discharge measurements, weather records, and 

records for nearby stations.
SAN JUAN RIVER BASIN 325

La Plata River at Colorado-New Mexico State line

Location.- Water-stage recorder and masonry control, lat.37°00', long. 108°11', in sec 

1U . T. 32 N., R. 13 W., 300 feet south of Colorado-New Mexico State line and 3 miles 

north of Pendleton, N. Mex. Datum of gage is 5,975.15 feet above mean sea level 

datum of 1929.

Drainage area.- 331 square miles.

Records available.- October 1933 to September 1949 in reports of Geological Survey 

February 1920 to Seotember 1949 in reports of Colorado State engineer.

Average discharge.- 29 years, 37.9 second-feet.

Extremes.- Maximum discharge during year, 1,030 second-feet June 19 (gage height, 5.46 

rget), from rating curve extended above 450 second-feet on basis of slope-area determination at gage height 11.36 feet; minimum daily, 0.9 second-foot Oct. 16, 17, 26. 

1920-49: Maximum discharge, 4,750 second-feet Aug. 24, 1927 (gage height 11 36 

feet), by slope-area method; no flow at times in many years.

Remarks.- Records good above 150 second-feet and fair below except those for periods of 

ice effect or no gage-height record, which are poor. Diversions above station for 

irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

1Z 

13 

14 

15

16 

17 

18 

19 

ZO

Zl 

ZZ 

23 

24 

Z5

26 

27 

28 

29 

30 

31

Oct.

7.5 

6.0 

6.0 

5.7 

6.3

6.0 

6.0 

5.4 

5.7

6.0

6.3 

6.6 

4.0 

2.1 

1.1

.9 

.9 

1.1 

3.4 

1.9

1.9 

1.8 

1.7 

1.3 

1.3

.9 

1.1 

22 

7.8 

6.0 

6.9

Nov.

5.1 

4.5 

4.5

3.1 

1.9

1.5

1.7 

1.4 

2.1 

3.1

1.9 

2.1 

1.8 

1.5 

»1.8

1.7 

1.9 

3.7 

5.1 

b6.0

3.7 

b6.0 

7.0 

8.0 

9.1

b4.0 

b3.5 

b3.4 

b4.0 

bS.O

Dec.

7.0 

7.0

11 

7.0 

3.0

3.5 

*2.7 

5.0 

5.2

7.0

9.0 

8.0 

10 

11 

11

10 

11 

blO 

blO 

bll

b!2 

bll 

bll 

blO 

b8.7

blO 

big 

b!2 

*bll 

bll 

b!2

Jan.

b!2 

bll 

10 

5.0 

4.5

6.0 

8.0 

9.0 

10 

12

14 

20 

23 

21 

b!9

b!6 

blS 

*b!6 

14 

15

15 

16 

16 

b!7 

b!6

blS 

b!3 

bll 

b8.0 

b6. 6 

5.0

Feb.

5.2

6.0 

5.6 

5.8 

6.0

5.5 

5.0 

5.3 

5.2

4.8

*6.0 

10 

20 

16 

13

10 

11 

13

15 

17

19 

22 

»41 

54 

45

40 

38 

40

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

^

ter year 1948-49 .......................

1'eak discharge (base, 300 sec. -ft.).- June

Mar.

39 

38 

53 

74 

90

60 

86 

4,7 

36 

40

39 

37 

33 

34 

37

40 

43 

42 

46 

62

48 

49 

40 

32 

28

23 

23 

27 

33 

24 

ZZ

Apr.

26 

23 

24 

26 

33

54 

65 

72 

70 

62

61 

72 

91 

98 

95

107 

173 

209 

200 

189

202 

209 

264 

286 

296

288 

282 

238 

234 

214

Secondfoot-days

141.6 

111.1 

280.1

10,955.7

400.1 

484.4 

1,325 

4,263 

3,118 

5,482 

1,377.5 

507.1 

154.9

17,644.8

19 (Z a.m.)

May

166 

149 

198 

185 

121

80 

74 

64 

53 

56

121 

95 

70- 

59 

84

124 

94 

71 

64 

48

44 

50 

70 

94 

98

133 

104 

180 

164 

124 

81

Maximum

22

9.1 

12

324

23 

54

90 

296 

198 

798 

147 

77 

14

798

June

61 

60 

64 

60 

55

50 

43 

38 

39 

74

83 

100

146 

133 

118

94 

128 

487 

798 

538

410 

335 

288 

327 

221

205

166 

156 

118 

87

July

62 

46 

35 

25 

20

17 

45 

60 

64 

147

122 

127 

78 

75 

67

54 

47 

40 

21 

14

11 

9.2 

12 

16 

7.8

6.4 

5.7 

6.4 

44 

48 

45

Minimum

0.9 

1.4 

2.7

0

4.5 

4.8 

22 

23 

44 

38 

5.7 

1.2 

2.5

.9

Aug.

45

45 

46 

40 

40

42 

52 

77 

16 

9.5

5.1 

4.2

1.7 

1.6 

1.4

1.2 

1.2 

3.9 

7.4 

6.7

6.4 

6.7 

6.0 

6.0 

5.4

5.4

5.1 

5.1 

5.1 

4.5 

4.5

Mean

4.57 

3.70 

9.04

29.9

12.9 

17.3 

42.7 

142 

101 

183 

44.4 

16.4 

5.16

48.3

Sept.

4.5 

4.8 

4.8 

4.8 

5.1

3.3 

2.5

2.6 

3.0 

2.6

14 

10 

8.8 

8.8 

8.1

6.0 

5.7 

4.8 

4.2 

4.2

4.2 

3.9 

3.3 

3.6 

4.5

4.5

3.9 

3.9 

5.1 

5.4

Runoff In 

acre-feet

281 

220 

556

21,730

794 

961 

2,630 

8,460 

6,180 

10,870 

2,730 

1,010 

307

35,000

1,030 sec. -ft.; June 24 (3:30 p.m.) 425

s«o.-rt.

* Winter discharge measurement made on this day.

% State-discharge relation affected by Ice.

Note.- Ho gage-height record Nov. 23, 24, Dec. 1-17, Jan. 3-14. 19-23, Jan. 31 to Feb. Zl, Mar. 1 

(stage-discharge relation affected by Ice during most of periods); discharge computed on basis of 2 

discharge measurements and weather records.
326 SAN JUAN RIVER BASIN

La Plata River near Farmington, N. Hex.

Location.- Water-stage recorder, lat. 36°44'30", long. 108"14'45", in SW£ sec. 7, T. 29 

N., h. 13 W., 1,800 feet upstream from mouth and 2^ miles northwest of Farmington.

Records available.- March 1938 to September 1949. 

Average discharge.- 11 years, 37.0 second-feet.

Extremes.- Maximum discharge during year, 689 second-feet Oct. 28 (gage heigkt, 4.48 feet), 

rrom bating curve extended above 500 second-feet by logarithmic plotting; no flow at 

times.

1933-49: Maximum discharge and gage height not determined; no flow for extended 

periods.

Remarks.- Records poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

4 

2 

3 

5

6

2

2 

2

2 

3

3

3 

4 

6 

15

77

51 

29 

24 

22 

22

21 

20 

213 

46 

14 

31

Nov.

9 

aS 

a7 

a7 

8

7

7 

7 

7 

*7

5 

b3 

b3 

b3 

b3

b3 

b3 

b3 

*b3 

b3

b3

b3 

b4

b5 

10

*10 

7 

3 

*b7

b7

Dec.

b7 

b9

be

b5

b5 

*b3 

b4 

b4 

b5

b5

b6 

blU 

blO 

a5

aS

a8 

as 

aS 

a 15

*16 

12 

5 

a3 

33

a3

35

a3

33

*10 

4

Jan.

3 

0 

bO

ao

*alO 

al5 

320 

a30 

*a40

b45 

b50

b55 

a 50 

a40

330

alO 

alO 

alO

a 15 

a 10 

a 25 

a 30

335

*35 

33 

29 

19 

7 

7

Feb.

7 

16 

20 

26 

30

14 

10 

22 

3 

5

13

22 

18 

16

15

17 

22 

34 

52

129 

3135 

3140 

3150 

154

3120

alOO 

390

Month

Octo 

Move 

Dece

Ca

janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

1. ......................................

ter year 1948-49 .......................

Peak discharge (base, 500 sec. -ft. .- Oct.

ft.; June 19 (12:30 a.m.) 528 sec. -ft:; June

Mar.

85 

68 

a70 

380 

aSO

870 

380 

a60 

55 

50

60 

52

a 50 

aSO 

a50

355 

a55 

355 

355

68

360 

62 

57 

45 

42

38 

33

36 

50 

48

34

Apr.

33 

33 

42 

39 

42

66 

76 

74 

78 

60

60 

60 

82 

90 

85

85 

138 

189 

178 

115

3115 

118 

135 

182 

208

189 

161 

135 

121 

112

Secondfoot-days

640 

165 

199

7,214

685 

1,406 

1,753 

3,101 

685 

3,128 

759 

115 

122

12,758

May

370 

a 50 

a70 

360 

a30

18 

9 

a8 

a8 

a5

3

12 

5 

36 

38

310

12 

36 

34

31

31 

31

al 

al

al

al 

37 

85 

104 

340 

a 20

Maximum

213 

10 

16

370

55 

154 

85 

208 

104 

380 

107 

51 

56

380

28 (3:10 p.m. ) 689 sec. 

19 (2:10 p.m.) 641 sec.

June

aS 

5 

a6 

aS

34

a3 

32 

a2 

al 

alO

312 

315

a20 

325 

43

31 

37 

229 

335 

240

285 

380 

350 

348 

121

121 

145

164 

124 

57

July

29 

17

a 15 

alO 

a8

a5 

3 

alO 

a 50

370

aSO 

78 

350 

33 

330

a 25

320 

315

310 

38

5

2 

7 

24

107

15 

alO 

8

7 

7 

1

Minimum

2 

3 

3

0

0 

3 

33 

33 

1 

1 

1 

0 

0

0

-ft.; Feb. 

-ft.; June

Aug.

1

1 

3 

3

3 

2 

51 

40 

4

2 

1 

0 

0

0

0 

0 

0 

0 

0

0 

0

11

0

0

0 

0 

0 

0 

0

Mean

20.6 

5.5

6.4

19.7

22.1 

50.2

56.5 

103 

22.1 

104 

24.5 

3.7 

4.1

35.0

24 (4 a.m. 

23 (11:40

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

56 

16 

7 

6 

4

3

2 

2 

2 

2

2 

2 

2 

4

4

2 

1 

1 

2 

2

Runoff In 

acre-feet

1,270 

327 

395

14,310

1,360 

2,790 

3,480 

6,150 

1,360 

6,200 

1,510 

228 

242

25,310

) 563 sec.- 

p.m. ) 512

sec.-ft.

* Winter discharge measurement made on this day.

a Doubtful or no gage-height record; discharge computed on basis of recorder trace, -wea-ther records, 

and engineer's knowledge of station.

b Stage-discharge relation affected by Ice.
SAN JUAN RIVER BASIN 327

Cherry Creek near Red Mesa, Colo.

Location.- Water-stage recorder, lat. 37°07', long. 108°12', In sec. 7, T. 33 N., R. 12 W., 

a quarter of a mile upstream from mouth and 2 miles northwest of Red Mesa. Datum of 

gage is 6,466.46 feet above mean sea level, adjustment of 1912.

Drainage area.- 66 square miles.

Records available.- October 1933 to September 1949 in reports of Geological Survey. March 

1928 to September 1949 in reports of State engineer.

Average discharge.- 21 years, 9.81 second-feet.

Extremes.- Maximum discharge during year, 106 second-feet June 19 (gage height, 3.00 feet);

 minimum daily, 0.1 second-foot Oct. 1-6, Aug. 30, 31, Sept. 1-10, 21-24, 27-30.

1928-49: Maximum discharge, 1,480 second-feet Aug. 25, 1940 (gage height, 5.90 feet, 

site and datum then in use), from rating curve extended above 100 second-feet on basis 

of slope-area determination at gage height 4.5 feet; no flow at times in many years.

Remarks.- Records fair above 40 second-feet and poor below. Diversions above station for 

irrigat ion.

Discharge, in second-feet, wat.er year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0.1

.1 

.1 

.1 

.1

.1

.2 

.2 

.2 

.4

.4 

.4 

.4 

.4 

.4

.4 

.6 

1.8 

1.4 

1.3

1.2

1.1 

1.0 

.9 

.9

.9 

.9 

1.8 

2.5

2.0 

2.2

Nov.

*2.2 

2.0 

1.7 

1.6 

1.4

1.4 

1.3 

1.2 

1.2 

1.2

1.2 

1.2

1.2 

1.4 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

Dec.

 1.0

Jan.

> 1.0

Feb.

> 1.5

Month

Goto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ........................

Mar.

1.5 

2.0 

2.3 

*2.6 

3.4

1.8 

2.8 

2.1 

2.0 

2.1

2.1 

2.1 

2,4 

2.8 

3,4

4.6 

6.9

9.6 

14

25

12 

*16 

12 

8.5 

6.3

4.6 

4.3

7.4 

11 

7.4 

4.6

Apr.

4.2

4.0 

5.0 

5.5 

12

37 

46 

50 

46 

42

39 

46 

58 

58 

53

57 

56 

68 

£3 

54

63 

75 

83 

78 

78

86 

90 

79 

84 

84

Secondfoot-days

24.5 

36.2 

31.0

3,193.4

31.0 

42.0 

189.6 

1,603.7 

1,595 

569.4 

489.3 

49.2 

4.9

4,665.8

May

68 

68 

73 

73 

64

55 

51 

47 

43 

47

68 

64 

60 

52 

56

57 

61 

61 

53 

50

42 

36

32 

32 

32

32 

32 

49 

52 

45 

40

Maximum

2.5 

2.2

88

25 

90 

73 

75 

48 

5.0 

.4

90

June

33 

30 

23 

20 

15

13 

12 

10 

12 

12

17 

23 

17 

12 

7.6

6.9 

6.9

30 

75 

46

32 

24 

17 

14 

12

10 

8.0 

11 

10 

10

July

6.7 

4.9 

4.2 

4.2 

3.6

3.6 

2.8 

4.2 

4.2 

21

24 

32 

48 

44

35

33 

26 

21 

15 

19

18 

17 

17 

16 

16

15 

12 

10 

5.6 

3.5 

2.8

Minimum

0.1 

1.0

0

1.5 

4.0 

32 

6.9 

2.8 

.1 

.1

.1

Aug.

2.8 

2.7 

2.6 

2.5 

2.1

2.1 

2.2 

5.0 

4.5 

4.0

3.5

3.0 

2.5 

2.0 

1.6

1.2 

.8 

.4 

.4 

.2

.2 

.2 

.4 

.7 

.5

.3 

.2 

.2 

.2 

.1 

.1

Mean

0.79 

1.21 

1.0

8.73

1.0 

1.5 

6.12 

53.5 

51.5 

19.0 

15.8 

1.59 

.16

12.8

Sept.

0.1.1 

.1 .1 .1

.1 .1 

.1 .1

.1

.2 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.4

.2

.1 

.1 

.1

.1

Runoff In 

acre-feet

49

72 

61

6,330

61 

83 

376 

3,180 

3,160 

1,130 

971 

98 

9.7

9,250

Peak discharge (base, 100 see.-ft.).- Apr. 23 (9 a.m.) 100 sec.-ft.; June 19 (time unknown) 106 

sec.-ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Oct. 18-20, Nov. 15 to Mar. 4 (stage-discharge relation affected by 

Ice during part of period), June 18, 19, July 21-25, Aug. 9-18, Sept. 1-9; discharge computed on 

basis of discharge measurement made on Mar. 4, weather records, and records for nearby stations.

939921 O- 51 - 22
328 SAN JUAN RIVER BASIN

West Mancos River near Mancos, Colo.

Location.- Water-stage recorder, lat. 37°22 I 30", long. 108 0 15'20", in sec. 14, T. 36 N., 

M. I'd tf., lj miles upstream from confluence with East Mancos River (formerly Middle 

Mancos River), and 3j miles northeast of Mancos.

Drainage area.- 42.1 square miles.

Records available.- September 1910 to December 1911, April 1938 to September 1949 (no 

winter records 1943-49).

Extremes.- Maximum discharge during year, 674 second-feet June 18 (gage height, 3.35 

reet), from rating curve extended above 270 second-feet; minimum daily recorded, 3.0 

second-feet Apr,-3.

1910-11, 1938-49: Maximum discharge, 1,080 second-feet May 13, 1941 (gage height, 

3.89 feet), from rating curve extended above 260 second-feet; minimum daily recorded, 

2.5 second-feet Aug. 20, 1939, but may have been less during period of ice effect.

Remarks.- Records good above 20 second-feet and fair below. No diversion above station.

a^ce, In second-feet, water year ootober!948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.1 

8.5

7.9 

7.6 

7.9

7.6 

7.0 

6.8 

6.8 

6.8

6.8 

6.5 

6.5 

6:3 

6.3

6.3

6.3 

6.5 

7.6 

7.3

7.0 

6.8 

6.8 

6.5 

6.8

6.5 

5.6 

7.0 

5.4 

6.1 

6.3

Nov.

6.1 

6.1 

5.8 

5.6 

5.2

5.4 

5.4 

4.7 

4.7 

5.2

5.4 

4.3 

4.9 

5.6 

5.6

5.6 

4.9 

4.9 4.8* 

4.5

4.5 

4.5 

4.5 

4.3 

4.1

4.1 

4.2

4.1 

4.1 

4.1

Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year

ember. ..................................

ter year .......................

Peak discharge (base, 150 sec. -ft.).- May

ft.; June 18 (lo p.m.) 674 sec. -ft.; June 25

Mar.

3.4 

3.4 

3.3 

3.3

Apr.

4.2 

3.3 

5.0 

3.2 

3.9

6.5 

10 

13 

12

12

15 

23 

24 

22 

18

18 

20 

24 

24 

48

53 

53 

20 

19 

22

20 

19 

18 

21 

19

Secondfoot -days

213.2 

147.2

-

571.1 

2,768.7 

6,805 

1,828 

1,610 

805

-

May

16 

17 

18 

16 

14

13 

11 

9.7 

10 

16

23 

14 

13 

12 

11

28 

187 

252 

214 

184

102 

102 

116 

133 

149

170 

184 

233 

184 

168 

149

Maximum

9.1 

6.1

-

53 

252 

445 

130 

100 

37

-

June

131 

123 

125 

122 

104

107 

111 

116 

122 

133

163

194 

211 

217 

214

233 

280 

430 

445 

376

389 

332 

300 

281 

288

328 

312 

262 

202 

154

July

98 

59 

50 

39 

33

27 

33 

58 

91 

130

9] 

85 

72 

58 

59

58 

58 

55 

55 

51

43 

42 

51 

51 

100

66 

53 

46 

40 

37 

39

Aug.

41 

40 

41 

56 

68

78 

100 

100 

76 

62

59

62 

58 

55 

54

53

50 

46 

42 

39

37 

40 

43 

44 

41

39 

38 

37 

37 

37 

37

Sept.

34 

33 

33 

33 

33

33 

34 

32 

30 

31

37 

34 

26 

27 

27

23 

23 

23 

23 

22

21 

20 

20 

21 

22

19 

19 

19 

25 

28

Minimum Mean %£*£

5.4 6.88 423 

4.1 4.91 292

-

. 3.0 19.0 1,130 

9.7 89.3 5,490 

104 227 13,500 

27 59.0 3,630 

37 51.9 3,190 

19 26.8 1,600

-

18 (7:45 p.m.) 272 sec. -ft.; May 27 (10 p.m.) 28O sec.- 

(11 p.m.) 376 sec. -ft.; July 10 (2:15 a.m.) 160 sec. -ft.

Mote.- No gage-height record Nov. 19-30; discharge computed on basis of weather records and 

records for nearBy" stations.
SAN JUAN RIVER BASIN

389

East Mancos River near Hancos, Colo.

Location.- Water-stage recorder, lat. 37°22'10"' long. 108°13'35", in NE£ sec. 24, T. 36 

N., K. 13 W., 800 feet upstream from Middle Hancos River and 4 miles northeast of 

Mancos.

Drainage area.- 11.1 square miles.

Records available.- March 1938 to September 1949 (no winter records 1938-41, 1943-49).

Extremes.- Maximum discharge during year, 195 second-feet June 19 (gage height, 1.65 

reet), from rating curve extended above 140 second-feet; minimum daily recorded, 0.9 

second-foot Nov. 6, 9-14.

1938-49: Maximum discharge, 642 second-feet May 8, 1941 (gage height, 2.67 feet), 

from rating curve extended above 130 second-feet; no flow Aug. 17-27, 1939, Sept. 25, 

26, Oct. 3, 1945.

Remarks.- Records fair. , Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to. September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.5 

1.4 

1.2 

1.2 . 

1.2

1.3 

1.2 

1.1 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.6 

1.5

1.4 

1.3 

1.2 

1.1 

1.0

1.0 

1.0 

1.3 

1.0

1.1 1.1

Nov.

1.0 

1.0 

1.0 

1.0 

1.0

.9

1.0 

1.0 

.9 

.9

.9 

.9 

.9 

.9 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year

ter year .......................

Mar.

3.2 

2.6 

2.0 

2.3

Apr.

2.0 

1.9 

2.0 

2.3 

3.8

7.0 

9.5 

11 

9.0 

8.0

8.5 

14 

16 

16 

16

19 

22 

25 

20 

16

18 

29 

37 

52 

64

64 

57 

46 

61 

54

Secondfoot-days

37.7 

29.3

-

711.0 

1,838 

1,513 

421.5 

154.6 

95.3

-

May

39 

46 

66 

54 

42

34 

28 

22 

22 

37

52 

49 

40 

52 

72

80 

61 

49 

46 

47

43 

42 

54 

74 

98

107 

96 

129 

107 

86 

64

Maximum

1.6 

1.0

-

64 

129 

144 

32 

15 

5.5

-

June

55 

44 

47 

44 

39

34 

30 

25 

28 

37

46 

61 

74 

68 

63

59 

59 

144 

142 

94

63 

49 

44 

40 

30

25 

22 

19 

15 

13

July

11 

12 

14 

12 

10

15 

14 

14 

14 

24

25 

32 

22 

18 

16

13 

11 

11

10 

8.5

9.5 

9.0 

9.0 

10 

26

16 

9.5 

7.5 

6.0 

6.0 

6.5

Minimum

1.0 

.9

-

1.9 

22 

13 

6.0 

2.9 

2.0

-

Aug.

7.0 

6.0 

6.0 

4.7 

4.1

4.7 

12 

15 

10 

8.0

6.5 

4.7 

3.8 

3.5 

3.5

2.9 

2.9 

2.9 

3.8 

3.8

3.5 

3.5 

3.8 

4.1 

3.8

3.5 

3.2 

3.2 

3.5 

3.5 

3.2

Mean

1.22 

.98

-

23.7 

59.3 

50.4 

13.6 

4.99 

3.18

-

Sept.

3.2 

3.2 

3.2 

3.2 

3.2

3.2 

3.2 

3.2 

3.2 

4.1

5.5 

4.1 

3.8 

3.8 

3.8

3.5 

3.2 

2.9 

2.3 

2.3

2.0 

2.0 

2.0 

2.0 

2.9

2.6 

2.6 

2.6 

3.8 

4.7

Runoff In 

acre-feet

75 

58

-

1,410 

3,650 

3,000 

836 

307 

189

-

Pe3k discharge (base. 60 sec.-ft.).- Apr. 26 (2 a.m.) 74 sec.-ft.; May 3 (2:30 a.m.) 78 sec.-ft.; 

May 16 (3 a.m.7 86 sec.-ft. 5 May 28 (6 a.m.) 142 sec.-ft.; June 19 (l a.jp.) 195 sec.-ft.

Note.- No gage-height record Nov. 19-30; discharge computed on basis of weather records and records 

for nearby stations.
SAN JUAN RIVER BASIN 330

Middle Mancos River near Mancos, Colo.

Location - Water-stage recorder, lat. 37°22<15", long. 108°13'35", in SE^ see. 13, T. 36 

H., K. 13 W., 1,300 feet upstream from mouth and 4 miles northeast of Mancos.

Records available.- March 1938 to May 1941, October 1941 to September 1949 (no winter 

records most years }.

Extremes.- Maximum dis:harge during year, 295 second-feet June 18 (gage height, 2.85 

feet) , from rating curve extended above 125 second-feet; minimum daily recorded, 0.1 

second-foot. Aug. 28 to Sept. 5, Sept. 18-23.

1938-49: Maximum discharge, 897 second-feet May 15, 1944, from rating curve extended abuve 78 second-feet; maximum gage height, 2.85 feet June 18, 1949; no flow at 

times in 1939, 1942-43, 1945.

Remarks.- Records fair. Three small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6. 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29

30 

31

Oct.

0.

1.

Nov.

0.6 

.6 

.6 

.6 

.6

.7 

.7 

.6 

.4 

.3

.4 

.3 

.3 

.3 

.3

.3 

.3

a. 3 

a. 3 

a. 3

a. 3 

a. 3 

a. 3

a',3

a',3 

a. 3 

a. 3 

a. 3

Dec. Jan. Feb.

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year

ter year ...............

Mar.

1.3 

1.1 

.9 

.9

Apr.

1.3 

al.3 

al.2 

1.2 

2.3

4.0 

5.8 

8.7 

7.1 

6.8

8.4 

11 

12 

12 

11

12 

12 

14 

12 

12

15

22 

36 

45 

61

63 

57 

58 

68 

60

Secondfoot-days

15.6 

11.8

-

641.1 

1,584 

1,425 

179.0 

36.2 

5.6

-

May

50 

57 

59 

54 

44

39 

35 

32

31 

51

71 

61 

50 

54 

64

63 

57 

53 

45 

43

37 

34 

38 

45 

45

50 

58 

87 

72 

60 

45

Maximum

1.0 

.7

-

68 

87 

257 

12 

2.9 

.3

-

June

40 

34

28 

24

21 

20 

20 

19 

22

a30 

34 

30 

30 

30

29 

32 

257 

161 

105

89 

68 

60 

58 

44

36 

28 

20 

18 

16

July

12 

11 

10 

9.0 

8.1

6.8 

6.3 

5.3 

5.6 

8.4

7.1 

6.0 

5.8 

5.3 

4.8

4.0 

3.1

2.6

2.9 

4.8 

6.0 

5.3 

9.0

7.4 

5.0 

4.0 

2.9 

2.6 

2.5

Aug.

2.2

2.3 

2.6 

2.1 

1.8

2.2 

2.9 

2.9

2^3

2.0 

1.8 

1.7 

1.4 

1.1

.8 

.6 

.4 

.3 

.3

.2 

.2 

.2 

.3

'.? 

.1 

.1 

.1 

.1

I 

Minimum Mean

0.3 0.50 

.3 .39

-

1.2 21.4 

31 51.1 

16 47.5 

2.5 5.77 

.1 1.17 

.1 .19

-

Sept.

0.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.3 

.3 

.3 

.3 

.3

.2 

.2 

.1 

.1 

.1

.1 

.1 

.1

.2 

.2

.2 

.2 

.2 

.3 

.3

Runoff in 

acre-feet

31

23

-

1,270 

3,140 

2,830 

355 

72 

11

-

Peak discharge (base, 50 see.-ft.).- Apr. 29 (7 p.m.) 90 sec.-ft.; May 10 (9 p.m.) 90 sec.-ft. ; 

May 27 (9 p.m.) 110 sec.-ft.; June 18 (8 p.m.) 295 sec.-ft.

a No gage-height record; discharge computed on basis of weather records and records for nearby 

stations.
PAR IA RIVER BASIN 331

Paria River at Lees Ferry, Aris.

Drainage area.- 1,570 square miles.

Re^ujdg available.- October 1923 to September 1949.

Extreme?.- Maximum discharge during year, 3,410 second-feet Sept. 29 (gage height, 10.0 

feet) , from rating curve extended above 2,000 second-feet based on several determinations either by slope-area method or by differences in flow of Colorado River above 

and below mouth of Paria River; minimum, 1.8 second-feet July 9.

1923-49: Maximum discharge, 16,iaO second-feet Oct. 5, 1925 (gage height, 17.5 

feet), by fluat-area method; no flow during periods in winters of several years 

prior to 1928.

Remarks.- Records good except these for periods of ice effect or fragmentary gage-height 

record, which are fair, and those above 2,000 second-feet, which are poor. Diversions 

above station for irrigation. Records of chemical analyses and suspended sediment loads 

for water year 1949 are given in Water-Supply Paper 1163.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14 

8.2 

5.8 

8.9 

14

5.4 

4.8 

5.1

8.7 

8.7

7.6 

7.6 

7.6 

6.2

6.5 

6.5 

7.6 

3.2 

9.2

9.8 

8.7 

7.6 

7.6 

7.6

8.2 

8.7 

10 

15 

f37

nso

Nov.

f65

27 

23

22

18 

18 

18 

14 

14

18 

18 

19

2O 

18 

18 

17 

18

18 

19 

19

23

2 1

20 

11 

10 

*10

Dec.

14 

29

21 

20 

b!6

bll 

bll 

15 

*20

20

32

30 

25

25

21 

 18 

25 

15 

14

18 

23 

*24 

11 

5.4

9.8

8.2 

12 

8.7 

15

Jan.

19.0

b!3 

b9.2 

b8.2

*b7.0 

b7.0 

b6.5 

*b8.7 

bll

b!2 

*b!3 

13 

21

20 

*18 

b!6 

b!7 

b!8

14 

16 

18 

*20

22

b20 

b!4 

bll 

*blO

Feb.

blO 

*bl3 

blO 

b9.0 

bl2

bll 

b!6 

*18 

15 

b!4

b!5 

23 

19 

*b!7 

19

19

20 

23 

23 

25

*26 

32 

48 

66

mo

*f!20

134 

*191

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

ber.. ...................................

lendar year 1948

ter year 1948-49 .......................

Mar.

137 

73 

73 

85 

93

85 

68 

*65 

48 

37

46 

50 

45 

43 

43

46 

46 

53 

49 

56

66 

41 

55 

48 

31

23 

19 

18

46 

46 

37

Apr.

50 

52 

54

50

5U 

47 

49 

65 

49

48 

41 

41 

45 

34

31 

27 

28 

31 

30

30 

26 

24 

21 

17

15 

14 

15 

15 

13

Secondfoot-days

439.0 

612 

561. 1

8,187.8

459.6 

1,058.0 

1,674 

1 , 067 

231.7 

1,668.1 

210.9 

713.7 

1,178.8

9,873.9

May

14 

9.2

7.6 

7.0 

6.2

5.4 

5.8 

6.5 

5.4 

4.8

4.8 

5. 1 

5.1 

5.1 

5.1

5.1 

5.1 

9.4 

26 

18

14 

11 

9.8 

6.5 

5.4

4.4 

4.4 

4.4 

3.7 

3.7 

3.7

Maximum

160 

65

32

1,130

191

137 

65 

26 

291 

47 

243 

675

675

June

3.7 

3.4 

3.7 

5.1 

113

154 

253 

80 

187 

74

45 

62 

49

32 

22

15 

11 

60 

291 

66

30 

20 

18 

12 

23

12

8.2 

6.5 

4.8 

3.7

July

3.7 

3.7 

4.0 

4.8 

4.0

3.7 

3.4 

2.8 

2.0 

2.8

47 

26 

26 

12 

4.8

4.0 

3.0 

3.0 

3.0 

3.4

3.4 

3.4 

4.4

4.8

4.4

4.0 

4.0 

4.0 

4.0 

4.0 

3.4

Minimum

4.8 

10 

5.4

3.6"

6.5 

9.0 

18 

13 

3.7 

3.4 

2.0 

3.0 

3.4

2.0

Aug.

3.0 

3.0 

3.0 

3.7 

6.2

5.1 

16 

188 

243 

58

22 

17 

12 

9.8 

8.7

6.2 

4.8 

4.4 

3.7 

3.4

3.4 

3.7 

4.8 

4.8

36

17 

6.5 

5.1 

4.0 

3.7 

3.7

Mean

14.2 

20.4 

18.1

22.4

14.8

37.8 

54.0 

35.6 

7.47 

55.6 

6.80 

23.0 

39.3

27.1

Sept.

3.4 

3.4

3.4 

3.7 

4.0

4.0 

4.0 

4.0 

6.2 

19

36 

25

112 

24

18 

14 

9.8 

7.6

6.5

7.0 

7.6 

8.2 

7.6 

8.2

10 

9.2

11 

675 

101

Runoff in 

acre -feet

871 

1,210 

1,110

16,230

912

2,100 

3,320 

2,120 

460 

3,310 

418 

1,420 

2,340

19,590

Peak discharge (base, 1,700 sec.-ft. j.- Sept. 29 (7 a

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ire.

f Fragmentary gage-height record; discharge computed

3,410 sec.-ft.

partly estimated gage heights
332 LITTLE COLORADO RIVER BASIN

Little Colorado River above Lyman Reservoir, near St. Johns, Ariz.

Location.- Water-stage recorder, lat. 34°20', long. 109°22', in NE^SE^ sec. 27, T. 11 N 

K. 28 K. , I mile downstream from Coyote Creek, 4-j miles upstream from Lyman Dam, and 

13 miles south of St. Johns.

Drainage area.- 747 square miles.

Records available.- April 1940 to September 1949.

Extremes.- Maximum discharge during year, 1,000 second-feet Aug. 2 (gage height, 8.35 

feet 1; minimum daily, 1.0 second-foot on several days in October.

1940-49: Maximum discharge, 16,000 second-feet July 25, 1940 (gage height, 17.1 

feet, from floodmarks), by slope-area method; minimum daily, 0.1 second-foot July 1-6, 

1946.

Remarks.- Records fair except those for periods of ice effect and those above 600 secondfeet, which are poor. Flow regulated by many small reservoirs having a combined storage 

capacity of about 15,500 acre-feet. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.7 

1.6 

1.2 

1.0 

1.0

1.2 

1.2 

1.2

1.1 

1.0

1.0 

1.0 

1.2

1.2 

1.0

1.6 

2.2 

2.5 

3.8 

4.5

*3.5 

3.0 

2.8 

2.8 

3.2

4.0 

4.2 

2.8 

2.5 

2.8 

4.2

Nov.

3.5 

3.5 

3.0 

3.0 

2.8

2.8 

2.5 

2.2 

b2.2 

b2.2

b2.5 

b2.5 

2.5 

2.5 

2.8

2.8 

*2.5 

b2.0 

b2.'0 

b2.0

b2.2 

b2.8 

b2.8 

b2.8 

3.2

3.0 

b3.0 

b3.0 

b3.0 

b3.0

Dec.

b3.0 

b4.5 

b5.8 

7.8 

b6.9

b6.9 

b7.5 

b6.9 

b6.9 

b6. 9

b7.8 

8.8 

8.8 

8.8 

*8.8

9. 

8. 

8. 

b8. 

b8.

8. 

9. 

12 

15 

b!2

11 

12 

11 

*11 

bll 

11

Jan.

11 

bll 

bll 

bll 

bll

bll 

bll 

bll 

b!2 

b!2

b!3

13 

14 

19 

17

*15 

b!5 

b!4 

b!4 

14

13 

13 

12

10 

11

12 

11 

bll 

bll 

blO 

bio

Feb.

blO 

blO 

blO 

blO 

blO

blO 

blO 

blO 

b9 

b9

blO 

blO 

11 

bll 

blO

*blO 

blO 

blO 

10 

11

11 

11 

12 

13

13

14 

14

14

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year

ber year 1948-49 .......................

Peak discharge (base, 500 sec. -ft.).- Apr.

Mar.

14 

13 

13 

14 

15

17 

17 

*34 

54 

45

42 

45 

46 

49 

49

56 

62 

66 

69 

77

80 

69 

66 

63 

66

71 

61 

62 

64 

60 

58

Apr.

59 

57 

61 

61 

55

51 

54 

52 

67 

69

67 

85

12 f 

175 

254

306 

306 

316 

316 

356

378 

434 

460 

472 

448

448 

367 

288 

270 

237

Secondfoot-days

68.0 

80.6 

272.0

-

384 

303 

1,517 

6,685 

1,235 

551.6 

616 

1,323.8 

425.2

13,461.2

24 (2 p.m. )

May

199 

163 

134 

107 

90

66 

43 

42 

38 

31

28 

22 

20 

19 

16

14 

15 

18 

19 

16

13 

13

12 

10 

10

10

11 

15 

14 

14 

13

Maximum

4.5 

3.5

15

-

19 

14 

80 

472 

199 

49 

59 

169 

41

472

524 sec. -ft

June

10 

10 

9.3 

9.0 

9.0

9.3 

6.8 

8.6

12 

12

12 

16 

16

13 

9.6

11 

24 

20 

21 

28

43 

45 

45 

41 

32

18 

16 

14 

14

11

July

12 

14 

15 

17 

17

17

18 

16 

20 

19

20 

59 

36 

28 

22

20 

18 

f!6 

17 

14

14 

21 

17 

35 

20

18

16 

15 

16 

15

14

Minimum

1.0 

2.0 

3.0

-

10 

9 

13 

51 

10 

6.8 

12 

9.0 

4.0

1.0

Aug.

14 

126 

46 

41 

28

39 

96 

169 

138 

102

f79 

69 

55 

48 

38

34 

31

21 

14 

13

14 

12 

14 

13 

12

9.6 

9.6 

10 

10 

9.6 

9.0

Mean

2.19 

2.69 

8.77

-

12.4 

10.8 

48.9 

223 

39.8 

18.4 

19.9 

42.7 

14.2

36.9

Sept.

9.6 

8.2 

7.6 

5.5 

5.0

4.2 

4.2 

4.0

21 

41

30

15 

9.6 

9.3 

14

23 

21 

21 

20 

18

16 

15 

14 

14 

14

13 

13 

12 

10 

13

Runoff In 

acre-feet

135 

160 

540

-

762 

601 

3,010 

13,260 

2,450 

1,090 

1,220 

2,630 

843

26,700

. ; Aug. 2 (9 p.m.) 1,000 sec.-

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

f Fragmentary gage-height record; discharge computed from partly or wholly estimated gage heights.
LITTLE COLORADO RIVER BASIN 333

Lyman Reservoir near St. Johns, Ariz.

Location.- Water-stage recorder, lat. 34°22', long. 109°23', in SW£NE£ sec. 9, T. 11 N., 

K. as E., in control tower of Lyman Dam on Little Colorado River, 9 1/3 miles south of 

S t. Johns.

Drainage area.- 790 square miles.

Kecords available.- May 1940 to September 1949.

Extremes.- Maximum contents during year, 23,200 acre-feet May 3-7; maximum gage height, 

51.01 feet May 5, 6; minimum contents, 7,340 acre-feet Nov. 27 to Dec. 2 (gage height, 

34.56 feet).

1940-49: Maximum contents, 25,500 acre-feet May 25-31, 1941 (gage height, 52.80 

feet); minimum, -285 acre-feet Sept. 22, 1944 (gage height, 18.99 feet); no storage 

available to Lyman Canal Sept. 11 to Oct. 7, 1944.

Remarks.- Reservoir is formed by an earth and rock-fill dam, rubble faced; dam completed 

and storage began in 1920; original dam washed out Apr. 14, 1915. Crest of peraanent 

spillway raised from 50.0 to 56.8 feet during March and April 1949. Capacity, 21,900 

acre-feet between gage heights 20.0 feet (bottom of Lyman Canal) and 50.0 feet (average 

elevation of former spillway crest). Capacity, 31,000 acre-feet between gage heights 

20.0 and 56.8 feet (average elevation of new spillway crest). No spill occurred this 

year. Contents between 2.0 feet sill of outlet gates, and 20.0 feet 4,500 acre-feet 

(based on survey in 1920), not available for release to Lyman Canal but can be released 

to river channel. Figures given herein represent contents above gage height 20.0 feet 

(bottom of Lyman Canal). Water used for irrigation in vicinity of St. Johns.

Contents at 12 p.m., in acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

26

29

30

31

Oct.

8,200

8,110

8,020

7,920

7,830

7,750

7,670

7,570

7,500

7,480

7,470

7,470

7,450

7,440

7,430

7,420

7,420

7,400

7,400

7,400

7,390

7,390

7,380

' 7,380

7,370

7,370

7,370

7,370

7,380

7,380

7,430

NOT.

7,440

7,430

7,430

7,430

7,420

7,420

7,410

7,400

7,390

7,390

7,380

7,380

7,380

7,380

7,380

7,370

7,370

7,370

7,370

7,360

7,360

7,360

7,360

7,360

7,360

7,360

7,340

7,340

7,340

7,340

-

Deo.

7,340

7,360

7,370

7,380

7,380

7,400

7,420

7,430

7,440

7,450

7,470

7,480

7,490

7,510

7,510

7,540

7,540

7,560

7,570

7,590

7,610

7,630

7,650

7,660

7,720

7,740

7,790

7,800

7,800

7,820

7,840

Jan.

7,870

7,900

7,900

7,920

7,920

7,920

7,920

7,950

7,980

8,020

8,060

8,090

8,110

8,140

8,170

8,180

8,210

8,220

8,250

8,270

8,290

8,310

8,330

8,350

8,360

8,380

8,400

8,420

8,440

8,450

8,470

Feb.

8,490

8,500

8,520

8,540

8,560

8,570

8,590

8,610

8,630

8,640

8,660

8,680

8,700

8,720

' 8,740

8,760

8,770

8,790

8,820

8,840

8,860

8,880

8,900

8,920

8,940

8,970

9,000

9,030

_

_

-

liar.

9,050

9,090

9,110

9,140

9,180

9,210

9,230

9,270

9,350

9,390

9,400

9,430

9,460

9,490

9,540

9,590

9,670

9,740

9,860

10,000

10,200

10,300

10,400

10,500

10,700

10,800

11,000

11,100

11 , 200

11,300

11,400

Apr.

11,600

11,600

11,800

11,800

11,900.

12,000

12,100

12,200

12,300

12,500

12,500

12,700

12,900

13,300

13,800

14,400

14,900

15,500

16,100

16,700

17,400

18,200

19,000

19,800

20,500

21,200

21,700

22,100

22,500

22,700

-

Bay

22,900

23,100

23,200

23,200

23,200

23,200

23,100

23,000

22,900

22,800

22,700

22,600

22,500

22 , 500

22,400

22,300

22,300

22,200

22,100

22,000

21,900

21,800

21,700

21,600

21 , 500

21,400

21,400

21,300

21,200

21,100

21,000

June

20, 900

20,800

20,700

20,600

20,600

20,500

20,400

20,300

20,300

20,200

20,200

20,200

20,200

20,100

20,100

20,100

20,100

20,100

20,000

20,000

20,100

20,100

20,100

20,100

20,100

20,000

19,900

19,900

19,800

19,700

-

July

19,700

19,60O

19,500

19,400

19,400

19,400

19,400

19,400

19,400

19,400

19,400

19,500

19,500

19,500

19,500

19,400

19,400

19,400

19,400

19,400

19,400

19,400

19,300

19,400

19,500

19,500

19,500

19,400

19,400

19,400

19,300

Aug.

19,300

19,400

19,500

19,500

19,500

19,700

20,100

20,800

21,100

21,300

21,400

21,400

21,400

21,500

21,500

21,400

21,400

21,300

21 , 200

21,100

20,900

20,800

20,700

20,600

20,500

20,300

20,200

20,000

19,900

19,800

19,600

Sept.

19,500

19,300

19,200

19,100

19,000

18,900

18,800

18,800

18,700

18,800

18,700

18,700

18,600

18,600

18,500

18,600

18,600

18,600

18,600

18,600

18,500

18,500

18,500

18,400

18,300

18,200

18,100

18,000

17,900

17,800

-

Note.- No gage-height record Jan. 13-15, Jan. 17 to Feb. 15; contents computed on basis of record 

of discharge of Little Colorado River above and below Lyman Reservoir.

Monthly gage height and contents, water year October 1948 to September 1949

Date

Calendar year 1948. .

Sept. 30. ..............

Water year 1948-49..

Gage heigh 

(feet)t

-

46.46

-

Contents 

(acre-feet)

7 340

-

17,800

_

Change in contents 

during month 

(acre-feet)

-

1 300

-1,800

+9,520

t Gage height at 12 p.m.
334

LITTLE COLORADO RIVER BASIN 

Little Colorado River below Lyman Reservoir, near St. Johns, Arlz.

Location.- Water-stage recorder and concrete control, lat. 34°22', long.

' sec. 9, T. 11 N., R. 28 E., 65 feet downstream from outlet tunnel in Lyman Dam

sec. 4, T. 11 N., R. 28 E. 

Drainage area.- 790 square miles. 

Records available^- April 1941 to September 1949. 

Extremes.- Maximum daily discharge during year, 21 second-feet May 4-13; minimum daily,

°' 1 i941-49lf°Maxim kdiIcharge aobse?vea, 603 second-feet May 8, 1941 (including 546 second-feet of spilled water); no flow at times except for negligible leakage amounting 

to less than 0.05 second-foot.

Remarks.- Records good above 1 second-foot and fair below. Record shows_all water spilled 

 aWreleased from Lyman Reservoir to the river channel, but does not include I low diverted to Lyman Canal which was measured in second-feet as follows:

Mar. 10, 28.1 

Apr. 24, 28.3

May 25, 34.7 

June 29, 29.5

July 19, 21.6 

Sept. 22, 20.2

No flow over Lyman Dam spillway this year. Since 1929 spill has occurred only during periods Apr. 8 to about May 6, 1932, and Apr. 30 to May 13, 1941. Flow completely 

regulated by many reservoirs (combined capacity, 51,000 acre-feet), the largest of 

which is Lyman Reservoir (capacity, 35^500 acre-feet, see preceding page).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.7 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.7 

.6 

.6 

.6 

.2

.1 

.1

.1 

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Nov.

0.2

:Z 

.2 

.Z 

.Z

.Z 

.Z 

.Z

.3

.3 

.3 

.3 

.3 

.3

.3

.2 

.2

.2

.2 

.2

Dec.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1

.1

.1

.1 

.1

.1 

.1

.1 

.1

.1 

.1 

.1

.2 

.2

Jan.

0.2 

.2 

,2 

.2

.2 

.2 

.2 

.2 

.1

.1 

.1 

.1

.1 

.1

.1

'.Z 

.2 

.2

.2

.2 

.2 

.1

.1

.1 

.1 

.1 

.1 

.1 

.1

Feb.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu

Sept

Wa

lendar year 1943

1... ....................................

ter year 1948 49 ...............

Mar.

0.1

.1 

.1 

.1 

.1

.1 

.1 

.1

.3 

.6

.6 

.6 

.6 

.6

.6

.6

.6 

.6 

.9

.4

.4 

.5 

.5 

.5 

.6

.6 

.6

.6 

.5 

.5 

.5

Apr.

0.5 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.5 

.5 

.5 

2.7

6.4 

8.1 

11

12 

12

14 

15 

15 

18

30

Secondfoot -days

10.6 

6.7 

3.7

950.9

4.7 

2.8 

13.6 

142.4 

456.5 

219.5 

220.9 

171.0 

135.4

1,387.8

May

20 

20 

20 

21 

21

21 

21 2l" 

21 

21

21 

21 

21 

20 

13

10 

10 

10 

9.5 

9.5

9.5 

9.5 

9.5 

9.5 

9.5

9.5 

9.5 

9.5 

9.5 

9.5 

9.5

Maximum

0.7 

.3

11

.1 

.9

20 

21 

8.2 

7.8 

7.8 

7.0

21

June

8.2 

.8 

.8 

.8 '.8

'.0

.0 

.0 

.0 

.0 

.0

.0 

.0 

.0 

6.8 

6.7

July

7.0 

7.0 

7.4 

7.4 

7.4

7.4 

7.4 

7.4 

7.4 

7.4

7.8

7.8 

7.0 

7.0 

6.7

6.7 

6.7 

7.0 

7.0 

7.0

7.0 

7.0 

7.0 

7.0 

7.0

7.0 

7.0 

7.0 

7.0 

7.0 

7.0

Minimum

0.1

.1

-

.1 

.1 

.1

.4 

9.5 

6.7 

6.7 

1.6 

3.0

.1

Aug.

7.0 

7.0 

7.4 

7.4 

7.4

7.4 

7.4 

7.8 

7.8 

4.0

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

5.8

7.4 

7.4 

7.4 

7.4 

7.4

7.4 

7.4 

7.4 

7.0 

7.0 

7.0

Mean

0.34 

.22 

.12

2.6O

.15 

.10 

.44 

4.75 

14.7 

7.32 

7.13 

5.52 

4.51

3.80

Sept.

7.0 

7.0 

7.0 

7.0 

7.0

7.0 

7.0 

7.0 

4.9

b.4

6.7 

7.0 

7.0 

7.0 

7.0

-4.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

. 2'

2.2

2.2 

2.2 

2.0 

2.0 

2.0

Runoff In 

acre -feet

21 

13

7.3

1,890

9.3

5.6 

27 

282 

905 

43t> 

438 

339 

269

2,750
LITTLE COLORADO RIVER BASIN

335

Little Colorado River above Zuni River, near Hunt, Ariz.

Location.- Water-stage recorder, lat. 34"38', long. 109°40', in SW^NW^- sec. 2, T. 14 N.,

 K. 25 E., 500 feet upstream from Zuni River and 3 miles northwest of. Hunt.

Drainage area.- 3,680 square miles (including 830 square miles in closed basin surrounding Quemado, N. Mex.).

Records available.- March 1940 to September 1949.

Extremes.- Maximum discharge during year, 478 second-feet Aug. 10 (gage height, 3.11 feet); 

minimum daily, 0.1 second-foot June 18.

1940-49: Maximum discharge, 1,100 second-feet Aug. 13, 1945 (gage height, 4.13 

feet); no flow at times in most years.

Remarks.- Records good except those for periods of ice effect;, which are fair. Diver-

 slons above station for irrigation. Considerable regulation by many reservoirs 

(combined capacity, 54,000 acre-feet), the largest of which is Lyman Reservoir 

(see p. 333).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.2 

.7 

.8 

.6

.2

.4 

.4 

.6 

.6

.6 

.6 

.7 

.7 

.7

.7 

.7 

.7

.8 

.8

1.0 

1.0 

1.0 

.8 

.8

.6 

.6 

.6

1.0 

1.1 

1.2

Nov.

1.2 

1.1 

1.0 

.8 

.S

.8 

.8 

.7 

.5 

.5

.5

.5 

.5 

.5 

.5

.4 

.5 

.5 

.5 

.5

.5 

.5 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.4

Dec.

0.4 

.4 

.4 

.4 

.3

.5 

.4 

.4 

.4 

.5

.4

.5 

.5 

.6 

.4

.5 

.6 

.7 

.7 

.7

.7 

1.1 

1.1

1.0 

.6

.8 

.8 

.7 

.7 

.8 

1.0

Jan.

1.0 

.6 

.4 

b.4 

b.4

b.4 

.4 

.5 

1.1 

2.0

2.0 

1.2

1.2 

.8 

.5

b.3

b.3 

b.4 

bl.4 

1.4

1.6 

1.8 

1.8 

1.2 

1.0

1.0 

1.0 

bl.2 

bl.2 

bl.2 

bl.4

Feb.

bl.4 

bl.6 

bl.6

bl.6 

bl.6

bl.6 

bl.4 

1.6 

bl.6 

bl.8

bl.8 

bl.8 

1.6 

1.6 

2.0

2.0 

1.8 

1.8 

1.6 

1.8

1.8 

2.0 

2.3 

2.3

2.0

2.0 

2.0

1.8

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Ho v

June 

July 

Augu

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

2.8 

3.2 

2.8

2.8 

2.8

2.8 

3.2 

2.8 

2.3 

2.6

2.3

1.8 

1.8 

1.8 

1.8

1.8 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.4 

1.2 

1.4

1.6 

2.3

1.8 

1.4 

1.2 

1.1

Apr.

.1 

.1 

.1 

.1 

.1

.0 

.0 

.S 

.5 

.5

.4 

.4 

.4 

.3 

.2

.2 

.2 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Secondroot-days

22.1

17.0 

19.0

933.3

31.1 

49.8 

62.4 

14.2 

16.5 

10.9 

143.5 

2,570.9 

27.4

2,984.8

May

0.2 

.3

.3

.5

.5 

.4 

.3 

.3 

.3

.4 

.3 

.2 

.4 

.5

.6 

.3 

.2 

.3 

.4

1.0 

1.1 

1.1

.8 

1.1

.7 

.7

.8 

.8 

.8 

.7

Maximum

1.2 

1.2 

1.1

14

2.0 

2.3 

3.2 

1.1 

1.1 

.6 

28 

460 

1.8

460

Peak discharge (base, 75 sec. -ft.).- Aug. 3 (6 p.m.) 99 sec. -ft.;

June

0.6 

.6 

.5 

.4 

.4

.4 

.2 

.2 

.2 

.4

.6 

.6 

.5 

.4 

.4

.3 

.2 

.1 

.4 

.3

.4

.7 

.4 

.2 

.3

.4 

.2 

.2 

.2 

.2

July

0.2 

.2 

.2 

.4 

.6

.5 

.2 

.2 

.3 

.7

.5 

.5 

.5 

.4 

.3

.2 

.2 

.2 

.2 

.4

.4 

.2 

.4 

.7 

.7

2.2

24 

26 

27 

28 

27

Minimum

0.2 

.3 

.3

0

.3 

1.4 

1.1 

.2 

.2 

.1 

.2 

1.4 

.6

.1

Aug. 10 (7

Aug.

24 

22 

32

27

18

21 

173 

350 

355 

460

350 

230 

147 

92 

68

49 

34 

25 

20 

15

12 

8.8 

7.8 

11 

4.9

3.8 

3.2 

2.6 

1.8

1.6

1.4

Mean

0.71 

.57

.61

2.55

1.00 

1.78 

2.01 

.47 

.53 

.36 

4.63 

82.9 

.91

8.18

Sept.

1.1 

.9 

.7 

.6 

.6

.6 

.7

.8 

.9 

1.8

1.2 

.9 

.9 

.9 

1.1

.9 

.8 

.8 

.6

.8

.9 

1.1 

1.1 

1.1 

.9

.9

1.1 

.9 

.8 

.8

Runoff In 

acre-feet

44 

34 

38

1,850

62 

99 

124 

28 

33 

22 

285 

5,100 

54

5,920

a.m. to 1 p.m.) 478

sec.-ft.

b Stage-discharge relation affected by Ice.
LITTLE COLORADO RIVER BASIN 336

Little Colorado River near Hunt, Ariz.

Location.- Water-stage recorder, lat. 34°39', long. 109°42 r , in NEiNW^ sec.' 4, T. 14 N^ ,

HTTTETE., at bridge on U. S. Highway 260, 2 miles downstream from Zuni River and 5 miles

northwest of Hunt. Datum of gage Is 5,371.59 feet above mean sea. level, datum of 1929.

Drainage area.- 6,280 square miles (including 830 square miles in closed basin surrounding 

Quemado, N. Mex., and excluding_964 square miles In north Plains Basin, N. Mex., a 

closed basin east of Continental Divide).

Records available.- May 1929 to October 1933, March 1940 to September 1949. 

Average discharge.- 13 years, 25.6 second-feet.

Extremes.- Maximum discharge during year, 4,050 second-feet Aug. 9 (gage height, 16.87 

feet ) , by slope-area method; minimum daily, 0.2 second-foot on many days.

1929-33, 1940-49: Maximum discharge, 8,000 second-feet July 28, 1929 (gage height, 

16.8 feet, present datum); no flow at times in several years.

Remarks.- Records good above 5 second-feet and fair below, except those for periods of 

Ice effect or fragmentary or no gage-height record, which are poor. Diversions above 

station for Irrigation. Considerable regulation by many reservoirs (combined capacity, 

about 63,000 acre-feet). Zuni River contributes practically all inflow between this 

station and station above Zuni River, near Hunt.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

fl.2 

fl.O 

.9 

.8 

.9

.3 

.4

.6 

.7

.8

.7 

.7 

.8 

.8 

.8

.7 

.7 

.8 

1.6 

1.1

1.0 

1.0 

.9 

.9 

.9

.9 

1.0 

1.1 

1.1 

1.2 

25

Nov.

4.6 

2.1

1.4 

1.1 

1.0

1.0 

1.0 

.8 

.7 

a. 7

a. 6

a. 6 

a. 6 

a. 6

a. 6 

*.6

'.3~

.5

.5 

.5 

.3 

.3 

.4

.3 

.3

.3 

.4 

.4

Dec.

0.4 

.4 

.4

.5 

.5

.5 

.5 

.5 

.6 

.5

.6 

.6 

.7 

.8 

.8

*. 6

.5 

.6 

.7

.6

.7 

1.0 

1.8 

1.9 

1.0

.9 

1.0

.8 

.6 

.8 

.8

Jan.

0.9 

.6 

b.4 

b.4 

b.4

a. 4

a. 5

al.O 

a2

b3 

b2 

bl.O 

b.8 

b.4

*b.5 

b.3 

b.2 

bl.5

bl.5

b2

b2 

b2 

bl.5 

bl.O

bl.O 

bl.O 

bl.O 

bl.2 

bl.3 

bl.3

Feb.

bl.'3 

bl.4 

bl.5 

bl.7 

bl.7

bl.7 

bl.7 

bl.5 

bl.5 

bl.9

bl.9

bl.9 

bl.5 

bl.5 

b2

*2.1 

d2.0 

dl.9 

dl.8 

dl.8

dl.8 

2.0 

d2.3 

d2.4 

2.2

2.2 

2.1 

2.1

Month

Octo 

Hove 

Dece

Ca

Janu 

Febn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar.

3.4

3.0 

3.0 

2.8 

d2.8

d2.8

d3.2 

2.7 

2.2 

*2.2

2.6 

1.8 

1.8 

1.9 

2.0

2.0 

1.7 

1.7 

1.7 

1.7

1.8 

1.8 

1.6 

1.2 

1.2

1.6 

2.4 

1.9 

1.4 

1.0 

1.0

Apr.

0.9 

.0 

.0 

.1 

.3

.1 

.1 

.0 

.5 

.4

.4 

.3 

.3 

.3 

.2

.2 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.3

.2

Secondfoot -days

51.3 

23.4 

22.6

2,117.2

33.5 

51.4 

63.9 

14.4 

17.5 

11.9 

766.2 

6,517.0 

387.7

7,960.8

May

O.2 

.4 

.4 

.4 

.5

.6 

.4 

.4 

.4 

.4

.5 

.4 

.3

.3

. 6

.6 

.6 

.4 

.3 

.4

.7 

1.0

1.0 

.7 

1.1

.7 

.7 

.8 

.8 

.8 

.7

Maximum

25 

4.6 

1.9

113

3 

2.4 

3.4 

1.3 

1.1 

.6 

170 

1,800 

244

1,800

June

0.6

.6 

.6

.5

.5 

.4 

.3 

.3

.3

.5 

.6 

.5 

.4 

.4

.3 

.3 

.2 

.4 

.3

.4

.6 

.4 

a. 4 

a. 3

a. 4 

a. 3 

.2 

.2

.2

July

0.2 

.3 

.3 

.3 

.6

.5 

.4 

.3 

.3

. 6 

.6 

.6 

.5 

.4

10

7.3 

3.0 

.9

5.6

170 

42 

21 

169 

114

83 

27 

26 

26 

27 

28

Minimum

0.3 

.3 

.4

0

.2

1.3 

1.0 

.2 

.2 

.2 

.2 

1.6 

.6

.2

Aug.

26 

29 

99 

89 

40

163 

889 

i ,020 

1,800 

1,130

410

258 

164 

103 

70

52 

38 

28

20 

16

13 

9.6

8.3 

10 

16

f4.4 

f3.4 

f2.8 

f2.2 

f 1.7 

1.6

Mean

1.65 

.78 

.73

5.78

1.08 

1.84 

2.06 

.48 

.56 

.40 

24.7 

210 

12.9

21.8

Sept.

1.2 

.9

.8 

.6 

.6

.6 

.6 

.8 

1.0 

2.6

1.8 

6.4 

5.0 

66 

244

30 

a. 8 

a. 3 

a. 2 

al.5

1.2 

.1

.1 

.0 

.0

: .0

: .0

.9 

.8

Runoff In 

acre-feet

102 

46 

45

4,200

66 

102 

127 

29 

35 

24 

1,520 

12,930 

769

15,800

Peak discharge (base, 500 sec.-ft.].- July 24 (ll p.m.) 547 sec.-ft.; Aug. 7 (1 a.m.) 2,360 sec.-ft.; 

Aug. 9 (6 p.m.) 4,050 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station above Zuni River, near 

Hunt.

b Stage-discharge relation affected by ice.

d Doubtful gage 'height record; discharge computed on basis of records for station above Zuni River 

near Hunt.

f Computed from partly or wholly estimated gage-height record.
LITTLE COLORADO RIVER BASIN 337

Little Colorado River at Woodruff, Ariz. t 

(Formerly published as Little Colorado River near Woodruff, Ariz.)

Location.- Water-stage recorder, lat. 34°47' , long. 110°03 I , in NE^-SW^- sec. 17, T. 16 N., 

K. 22 E., on county bridge, in Woodruff and 3-f miles downstream from Silver Creek. Datum 

of gage is 5,129.0 feet above mean sea level (from river-profile survey, based on datum 

of 1929). Prior to Sept. 22, 1949, water-stage recorder at site ij miles downstream, at 

datum 5.5 feet lower.

Drainage area.- 8,100 square miles.

Hecords available.- March 1905 to December 1908, December 1915 to December 1919 (fragmentary;, April 1929 to December 1933, September 1935 to September 1949.

Average discharge.- 18 years (1929-33, 1935-49), 61.4 second-feet.

Extremes.- Maximum discharge during year, 7,540 second-feet Aug. 8 (gage height, 13.1 feet, 

site and datum then in use); minimum, 0.2 second-foot July 1.

1929-49: Maximum discharge, 13,000 second-feet July 26, 1940; no flow on some days 

in spring or summer of most years.

Maximum discharge recorded, 25,000 second-feet Dec. 5, 1919 (gage height, 12.0 feet, 

datum then in use), from rating curve extended above 2,000 second-feet; maximum gage 

height recorded, 12.7 feet, datum then in use, Jan. 19, 1916 (discharge not determined).

Remarks.- Records good except those for periods of ice effect or fragmentary or no gageheight record, which are fair. Diversions above station for irrigation. Some regulation by reservoirs above station.

Revisions (water year).- W 1049: 1917.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

10 

4.9 

3.0 

1.8 

2.0

1.1 

1.2 

1.0 

1.3 

2.5

3.1 

2.6 

3.0 

3.1 

3.4

3.4 

4.6 

8.5 

24 

20

21 

12 

7.6 

4.2 

4.0

4.2 

4.6 

4.8 

5.2 

6.2 

22

Nov.

67 

21 

11 

8.5 

7.2

4.0 

3.2 

2.5 

2.6 

3.6

3.8 

4.2 

4.0 

4.0 

4.4

*3.4 

2.5 

2.5 

2.4 

3.0

2.8 

2.6 

2.6 

2.5 

2.8

3.6 

b2 

bl 

b2 

b2

Dec.

t>3 

b3 

b3 

b4 

b4

b4 

b4 

b4 

b4 

b5

5.9 

5.9 

5.4 

5.6 

5.6

5.4 

*7.4 

7.2 

5.9 

7.6

6.9 

8.8 

9.6 

16 

14

19 

30 

31 

32 

*32 

31

Jan.

30

27 

b!7 

bll 

a9

b9 

b9 

b9 

bio 

14

18 

20 

203 

*1,160 

*209

80 

b45 

*b25 

b!2 

18

bl8 

16 

13 

13

17

17 

12 

b!2 

b!2 

bll 

bll

Feb.

bll 

blO 

blO 

blO 

blO

b9 

b9 

8.8 

b8 

b8

7.6 

8.2 

7.6 

6.7 

*6.5

7.0 

6.7 

7.0 

7.0 

6.7

6.7 

68 

216 

345 

314

202 

174 

234

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

h. ......................................

ter year 1948-49 .......................

Mar.

234 

234 

225 

297 

307

278 

274 

650 

297 

202

155 

142 

126 

104 

87

75 

69 

60 

49 

34

29 

25 

23 

a23 

a24

a24 

a23 

a23 

22 

20 

20

Apr.

23 

26 

29 

30 

39

38 

36 

34 

33 

31

28 

27 

28 

22 

15

11 

8.2 

5.1 

5.6 

5.1

4.6 

3.9 

3.0 

2.0 

2.8

5.8 

6.2 

5.3 

4.9 

4.2

Secondfoot-days

200.3 

168.7 

330.4

8,303.3

2,087 

1,724.5 

4,155 

516-9 

98.2 

142.8 

1,918.3 

14,048.4 

1,652.7

27,063.2

May

2.6 

2.1 

2.5 

2.3

3.1

3.9 

3.1 

3.3 

3.0 

3.0

1.7 

1.8 

2.1 

1.7 

1.7

2.2 

2.6

2.5 

4.0 

3.0

5.8 

4.4 

3.9 

3.3 

2.8

2.3 

2.1 

4.5 

6.5 

5.8 

4.4

Maximum

24

67 

32

993

1,160 

345 

650 

39 

65 

28 

438 

4,680 

503

4,660

June

3.9 

3.9 

4.6 

3.5 

2.8

3.3 

3.9 

3.7 

3.3 

28

22

12 

8.6 

6.5 

6.7

3.5 

2.6 

2.5 

2.0 

1.2

1.1 

.8 

1.0 

2.0 

2.3

2.1 

2.0 

1.1 

1.1 

.6

July

0.8 

1.0 

20 

11 

6.5

11 

4.6 

4.4 

2.6 

44

38 

58 

11 

13 

3.7

2.3

1.8 

2.6 

67 

414

160 

114 

100 

156 

438

86 

40 

32 

27 

24 

24

Minimum

1.0

1 

3

0

9 

6.5 

20 

2.0 

1.7 

.6 

.8 

2.9 

2.2

.6

Aug.

25 

114 

685 

166 

78

59 

1,460 

4,660 

3,060 

1,870

568 

349 

225 

155 

106

73 

54 

37 

30 

24

20 

20 

31 

30 

17

19 

a!2 

a8 

a5 

3.5 

2.9

Mean

6.46 

6.29 

10.7

22.7

67.3 

61.6 

134 

17.2 

3.17 

4.76 

61.9 

453 

55.1

74.1

Sept.

2.4 

2.3 

2.2 

3.0

5.6

4.6 

4.6 

3.9 

6.2 

503

470 

f73 

f46 

f31 

156

122 

43 

27 

21 

a!5

12 

11 

12 

12

11

6.5 

10 

9.9 

13 

9.5

Runoff In 

acre-feet

397 

374 

655

16,460

4,140 

3,420 

8,240 

1,030 

195 

263 

3,800 

27,860 

3,280

53,670

Peak discharge (base, 1,8OO sec.-ft.).- Jan. 14 (1 a.m.) 2,60O sec.-ft.; July 20 (3:3O p.m.) 2,4OO 

sec.-ft.; Aug. 3 (9:30 a.m.) 1,880 sec.-ft.; Aug. 8 (6 a.m.) 7,540 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of recorded range In stage and adjoining 

record.

b Stage-discharge relation affected by Ice.

f Fragmentary gage-height record; discharge computed on basis of partly or wholly estimated gage 

heights.
338 LITTLE COLORADO RIVER BASIN

Little Colorado River at Grand Falls, Ariz.

Location.- Water-stage recorder, lat. 35°26', long. Ill"12', in T. 24 N., R. 11 E , unsurveyed, at Grand Falls on Navajo Indian Reservation, 30 miles northeast of Flagstaff 

and % miles upstream from mouth. Altitude of gage, about 4,440 feet (from river-crofile

Drainage area.- 21,200 square miles.

Kecoras available^- October 1925 to December 1949 (discontinued) 

Average discharger- 24 years, 295 second-feet.

extremes.- iMH-j^: Maximum discharge during water year, 10,400 second-feet Aug 9 (gage 

height, 15.3 feet); no flow on many days.

1949: Maximum discharge during period October to December, 57 second-feet Oct 21 

(gage height, 5.75 feet); no flow on many days.

t925-49: Maximum discharge, 50,500 second-feet Apr. 5, 1'929 (gage height 30 0 

leet); no flow during some periods in each year

A discharge of about 120,000 second-feet occurred Sept. 19, 1923 (gage height 47 0 

leet, from floodmarks).

Remarks - Records good except those for.periods of fragmentary gage-height record, which 

are fair, and those for period of ice effect or no gage-height record, which are poor. 

Diversions above station for irrigation, municipal, and railroad uses. Some regulation 

by many small reservoirs above station.

Discharge, in second-feet, 1948-49 

1948-4,9

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

229

220

127

75

35

18

12

7.8

5.2

3.4

2.2

1.9

1.8

1.6

1.5

1.4

1.3

1.3

2.3

2.4

14

129

74

46

29

19

12

7

4

2

1

Nov.

0.8

166

371

164

89

52

34

20

15

14

18

13

9.6

8.8

7.8

6.6

5.2

4.1

2.7

2.0

1.3

.9

.4

.8

2.5

3.4

2.2

1.3

1.1

1.0

-

Dec.

~*0.5

.1

0

0

0

0

0

0

0

O

.7

3.1

3.6

2.7

*4.3

5.0

5.5

5.8

4.3

3.8

3.4

4.7

7.8

6.6

5.0

11

15

168

242

650

b500

Jan.

b300

b200

b!50

bllo

90

70

60

50

50

80

150

300

500

700

1,200

900

500

300

250

250

350

600

400

300

200

150

100

70

50

40

35

Feb.

30

26

24

22

20

20

20

20

18

18

18

16

16

14

14

14

14

14

16

16

18

40

100

600

1,500

1,500

1,300

1,200

_

-

-

Mar.

1,000

900

*770

601

500

612

782

1,100

1,680

2,000

1,420

1,300

1,380

1,600

1,640

1,680

2,050

2,570

2,620

2,520

2,670

2,620

1,800

1,640

1,240

896

727

f606

f623

f721

863

Apr.

832

652

526

410

f326

449

579

733

1,380

1,800

2,180

1,760

1,920

2,050

2,180

2-, 370

2,140

1,880

1,600

1,450

1,380

1,270

1,240

1,240

1,240

1,160

1,030

961

832

f745

-

May

f623

f484

352

264

215

222

187

146

100

75

60

44

32

22

15

71

70

41

22

10

4

1

.2

0

0

0

0

0

0

0

0

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.2

0

0

0

0

0

0

0

0

0

0

0

0

-

July

0

0-

0

.3

.6

.3

O

0

0

0

0

0

0

114

95

75

50

23

fll

f45

306

382

330

1,180

2,010

863

647

302

170

80

40

Aug.

24

24

20

161

600

415

260

697

a 260

4,610

2,300

928

500

302

193

136

95

70

46

33

22

14

13

9.2

4.7

3.2

21

27

14

4.7 ri.3

Sept.

0.1

0

0

0

0

0

0

o

0

.2

264

1,190

348

614

L,710

444

392

f!90

flOl

f63

38

25

18

11

5

2

1

.5

.5

.2

-

Peak discharge (base, 4,000 see.-ft.).- Aug. 9 (10 a.m.) 10,400 sec.-ft.

* Winter discharge measurement made this day.

b Stage-discharge relation affected by ice.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note.- No gage-height record Oct. 28-31, Jan. 5 to Mar. 2, May 9-11, 20-23, July 29-31, Sept. 

25-30; discharge computed on basis of adjoining good records, weather records, and records for 

station near Cameron.

Day

1

2

3

4

5

6

Oct.

0

0

0

0

0

0

Nov.

30

28

25

22

18

15

Dec.

2.8

3.4

3.4

3.0

2.7

2.7

Day

7

8

9

10

11

1?

Oct.

0

0

0

0

0

0

Nov.

12

10

7.4

6.0

4.5

3.8

Dec .

2.5

2.2

1.1

2.3

3.2

b25

Day

13

14

15

16

17

18

Oct.

0

0

0

0

0

0

Nov.

3.4

2.7

3.4

2.4

3.9

2.5

Dec.

b2.0

bl.5

1.0

.2

0

.2

Day

19

?0

?1

??

?3

?4

Oct.

0

0

34

13

4.5

1.8

Nov.

1.9

1.5

1.2

1.4

1.5

2.2

Dec.

0.3

0

0

0

0

0

Day

?5

?6

?7

?8

?9

30

31

Oct.

0.5

0

0

0

0

2.2

26

Nov.

2.4

2.5

2.5

2.4

2.4

2.5

-

Dec.

0

0

0

1.6

.5

0

0

b Stage-discharge relation affected by Ice

nthly discharge in second-feet, 1948-49

Month

October 1945 ............... ........

Water year 1948-49 .......................

December. ...................................

Calendar year 1949 ........................

Secondfoot-days

135,329.8

39.1

131,936.7

Maximum

229

8,260

3.4

8,260

Minimum

0

0

0

Mean

237

371

2.65

7.48

1.26

361

Runoff In 

acre-feet

268,400

163

78

261,700
LITTLE COLORADO RIVER BASIN 

Little Colorado River near Cameron, Ariz.

339

Location.- Water-stage recorder, lat. 35°56', long. 111°34', unsurveyed, on Navajo Indian 

Reservation, 3 miles downstream from Coconino darn site, 9.5 miles downstream from 

Moenkopi Wash, 9-| miles northwest of Cameron, and 45.5 miles upstream from mouth.

Drainage area.- 26,500 square miles.

Records available.- June 1947 to September 1949.

Extremes.- Maximum discharge during year, 12,400 second-feet Aug. 9 (gage height, 14.35 

feet); no flow on many days.

1947-49: Maximum discharge, 21,900 second-feet Aug. 9, 1947 (gage height, 19.60 

feet); no flow during some periods in each year.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation, municipal, and railroad uses. 

Some regulation by reservoirs above station. Records of suspended sediment loads for 

the water year 1949 are given in Water-Supply Paper 1163.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

484 

256 

217 

176 

230

allO 

a60 

a40 

a30 

a20

alO 

a9 

a8 

a7

a6

a5 

a4 

f3.0 

2.3 

5.8

11 

17 

75 

120 

73

49 

32 

19 

15 

38 

108

Nov.

al50 

a30 

a35 

340 

195

alOO 

a60 

340 

a25 

a!8

a!6 

a!5 

a!3 

all 

a9

a8 

aS 

*4.3 

2.4 

2.1

1.9 

1.9 

1.8 

1.9 

2.0

£.1 

1.9 

1.4 

1.3 

1.1

Dec.

1.0 

.9 

.8 

.7

.6

.5 

.4 

.3 

.3 

1.0

1.4 

1.8 

£.4 

*2.3 

3.0

2.3 

2.0 

£.0 

2.2 

1.8

1.4 

1.7 

11 

36 

8.3

2.4

1£ 

6.6 

90 

214 

633

Jan.

553 

328 

231 

160 

123

alOO 

a80 

a70 

a60 

a50

120 

198 

624 

637 

518

1,200 

*b700 

b400 

b300 

b260

263 

405 

595 

374 

286

b200 

b!50 

blOO 

b70 

b50 

*b40

Feb.

b30 

b26 

b24 

b22 

b20

b20 

b20 

b30 

b26 

b24

b22 

b20 

b£4 

b22 

*b22

b££ 

b24 

b26 

a 28 

a30

a35 

a50 

a 100 

a250 

bl,260

1,820 

1,540 

1,340

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

*1,220 

950 

806 

715 

673

882 

1,060 

1,100 

1,540 

2,400

1,900 

1,380 

1,340 

1,580 

1,740

1,700 

1,820 

2,400 

2,760 

2,670

2,670 

2,940 

2,490 

2,040 

1,900

1,540 

1,260 

1,100 

a900 

a700 

a800

Apr.

a800 

3700 

3600 

a450 

346

286 

440 

535 

926 

1,620

2,220 

1,950 

1,860 

2,040 

2,130

2,400 

2,400 

2,130 

1,820 

1,620

1,540 

1,420 

1,340 

1,300 

1,300

1,260 

1,140 

1,020 

915

760

Secondfoot-days

2,240.1 

1,097 1 

1,044.1

66,881.1

9,245 

6,877 

48,976 

39,268 

3,030.4 

850.1 

5,928.0 

20,858.5 

5,417.4

144,795.7

Peak discharge (base, 4,000 sec. -ft.).- Aug. 9 (8:30 p

May

661 

535 

419 

286 

208

198 

192 

150 

110 

80

360 

a35 

325 

a!5 

alO

a5 

.9 

3.0 

21

11

2.8 

1.1 

.7

.5 

.2

.1 

.1 

0 

0 

0 

0

Maximum

484

340 

633

2,760

1,200 

1,820 

2,940 

2,400 

661 

585 

1,540 

7,640 

1,420

7,640

m.) 12,400

June

0 

0 

0 

0 

0

67 

11 

1.0 

.7

.6

.6 

.4 

.2 

.1 

0

0 

0 

585 

149 

30

3.0 

1.1 

.4 

0

0

0 

0 

0 

0 

0

July

0 

0 

0

o

6.6

.6 

.2 

0 

0 

0

52 

92 

17 

2.4 

1.2

60 

44 

34 

106 

134

13 

174 

285 

263 

1,510

1,540 

748 

408 

238 

123 

f76

Minimum

2.3 

1.1 

.3

0

40 

20 

673 

286 

0 

0 

0 

0 

0

0

sec. -ft.

Aug.

f38 

f25 

14

11 

151

392 

320 

330 

5,460 

7,640

2,740 

1,630 

649 

394 

241

166 

102 

80 

60 

41

24 

12 

8.4 

137

163

25 

3.4 

1.1 

.5 

.1 

0

Mean

72.3 

36.6 

33.7

183

298 

246 

1,580 

1,309 

97.8 

28.3 

191 

673 

181

397

Sept.

0

0 

0 

0 

0

0 

0 

0 

0

467

100 

637 

618 

286 

1,420

835 

337 

299

166 

94

62 

42 

26 

14

6.6

3.0 

1.7 

1.3 

1.0 

.8

Runoff In 

acre-feet

4,440 

2,180 

2,070

132,600

18,340 

13,640 

97,140 

77,890 

6,010 

1,690 

11,760 

41,370 

10,750

287,300

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis Qf 

Falls snd Moenkopi Wash near Tuba.

b Stage-discharge relation affected by ice.

f Computed from partly or wholly estimated gage height.

ecords for Little Colorado River at Grand
340 LITTLE COLORADO RIVER BASIN

Silver Creek near Shumway, Ariz.

Location.- Water-stage recorder, lat. 34°22'30", long. 110°00 I 30", in SW^SE^ sec. 4, T. 

UN., R. 22 E., 1,000 feet 'downstream from overflow channel from Mexican Lake, 1 mile 

downstream from dam forming Daggs Reservoir, 4j miles southeast of Shiomway, and 8j miles 

north of Showlow. Datum of gage is 5,913.48 feet above mean sea level, datum of 1929.

Drainage area.- 172 square miles, of which 53 square miles are considered as noncontributing.

Records available.- March 1942 to September 1949. Monthly records only prior to October 

1944.

Extremes.- Maximum daily discharge during year, 142 second-feet Mar. 8; minimum daily, 

 0.3 seeond-foot Oct. 1-4.

1942-49: Maximum daily discharge, that of Mar. 8, 1949; minimum daily, 0.2 secondfoot on many days in 1945, 1946.

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Flow regulated by Daggs Reservoir and Mexican Lake (combined capacity, 4,920 acre-feet 

below elevation 5,966.9 feet, crest of spillway from Daggs Reservoir, and below elevation 5,965.5 feet, crest of spillway from Mexican Lake). Spill occurred from Feb. 26 

to about Apr. 24. No diversions for irrigation above Daggs Reservoir.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.3 

.3 

4.4

8.8 

8.8 

8.8 

8.6 

8.6

8.4 

8.4 

8.4 

8.2 

8.2

8.2 

8.2 

8.2 

8.2 

6.1

.6

.6 

.6 

.6 

.6

.5 

.5 

.5 

.5 

.6 

.6

Nov.

0.6 

.6 

.6

.6 

.6

.6 

.6 

.6

.7 

.7

.7 

.7

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.6

.7 

.8 

.8 

.8

Dec.

0.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.9 

.9

.9

.9 

.9 

.9 

.9

.0 

.0 

.3 

.1

.1

.1 

.1 

.1

Jan.

1.2 

1.2 

bl.2 

bl.2 

bl.2

bl.2 

bl.2 

bl.3 

bl.3 

bl.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3

1.3 

1.3 

1.3

1.3 

1.3

1.3 

1.3 

1.3

1.3 

1.3

1.5 

1.3 

bl.3 

1.4

Feb.

1.4 

1.4

1.4 

1.4

1.5

1.5 

1.5 

1.6 

1.6

1.6

1.6 

1.6 

1.7 

1.7 

1.7

1.7

1.8 

1.9 

1.9 

1.8

1.8 

1.8 

1.8 

1.8 

1.9

23 

75 

96

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Kara 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

76 

60 

48 

40 

43

44 

44 

142 

140

91

65 

52 

44 

38 

33

31

28 

13

2.7

3.3

4.5 

5.0 

5.5

7.8 

8.1

8.8 

8.8 

7.8 

9.6 

11 

12

Apr.

14

13 

14 

19 

20

22 

23

21 

19

19

14 

12 

10

9.2

8.1 

7.5

6.8 

6.5 

5.8

5.3

4.8 

4.5

4.1

6.3

8.8 

8.8 

8.8 

E5 

37

Secondroot-days

135.9 

20.5 

29.1

3,886.2

39.7 

235.4 

1,126.9 

396.3 

917 

700 

680.0 

677.7 

725

5,683.5

May

37 

37 

36 

35 

35

35 

35 

35 

34 

30

27 

27 

29 

30

30

30 

30 

30 

30 

30

30 

30 

29 

27 

25

23

23

22

Maximum

8.8 

.8 

1.3

31

1.4 

96 

142 

37 

37 

24 

30 

39 

32

142

June

23 

S3 

23 

23 

23

23 

23 

23 

23 

23

23 

23 

23 

23 

23

23 

23 

23

23 

23

24 

24 

24 

24

24

24 

24 

24 

24 

24

July

24 

24 

24 

24 

24

24 

24 

23 

22 

22

16

8.6 

8.6 

8.6 

8.6

8.6 

18 

24 

24

25

25 

25 

26 

26 

26

26 

26 

26 

29 

30 

30

Minimum

0.3 

.6 

.8

.3

1.2 

1.4 

2.7 

4.1 

22 

23 

8.6 

.8 

15

.3

Aug.

30 

32

32 

32 

32

35 

39 

21 

.9 

.8

.8 

.8 

a. 8 

a. 8 

a. 8

a!4

a27 

a27 

a27 

a27

a27 

a27 

27 

27 

27

27 

27 

27 

27 

27 

27

Mean

4.38 

.68 

.94

10.6

1.28 

8.41 

36.4 

13.2 

29.6 

23.3 

21.9 

21.9 

24.2

15.6

Sept.

27 

27

28

32 

32

32 

32

32 

32 

31

31 

30 

26 

22 

22

21 

21 

21 

21 

21

21 

20 

20

20 

20

20 

18 

15 

15 

15

Runoff in 

acre-feet

270 

41 

58

7,700

79 

467 

2,240 

786 

1,820 

1,390 

1,350 

1,340 

1,440

.11,280

a No gage-height record; discharge 

adjoining periods.

b Stage-discharge relation affecte

computed on basis of recorded range in stage and records for
LITTLE COLORADO RIVER BASIN 341

Silver Creek near Woodruff, Ariz.

Location.- Water-stage recorder, lat. 34°44', long. 110°02', in NW-jNE^ sec. 5, T. 15 N. , 

K. aa E. half a mile upstream from mouth and 3 miles south of Woodruff. Control for 

station is crest of diversion dam 1,700 feet downstream except at medium stages. Altitude of gage, about 5,196 feet (from river-profile map).

Drainage area.- 942 square miles.

Records available.- April 1929 to October 1933, October 1935 to June 1949 (discontinued).

Average discharge.- 15 years (1929-33, 1935-46), 25.6 second-feet.

Extremes . - Maximum discharge during period October 1948 to June 1949, 2,900 second-feet 

Jan. 13 (gage height, 6.88 feet); minimum daily discharge during period, 0.3 second-foot 

May 1.

1929-49: Maximum discharge, 11,000 second-feet July 26, 1940 (gage height, 12.37 

feet), by slope-area method; no flow during periods in spring and summer of most years.

Remarks.- Records fair above 10 second-feet and poor below. Diversions above station for 

irrigation. Flow regulated by several reservoirs. Records show discharge over dam and 

do not include flow in canal that diverts at darn. Canal flow was measured as follows: 

Oct. 3, 4.61 second-feet; Oct. 20, 5.29 second-feet; Dec. 17, 2.44 second-feet; Mar. 30, 

4.02 second-feet; Apr. 24, 7.08 second-feet; June 30, 5.56 second-feet.

Revisions (water years).- W 1089: 1929 (M).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

4.8 

2.1 

1.2 

1.6 

1.6

1.2

1.2 

1.2 

1.6

2.1

2.1 

2.1 

2.1 

2.5 

2.5

2.5 

3.4 

4.1 

3.4 

14

11 

7.7 

5.5 

4.8 

4.1

4.1 

3.4 

3.4 

4.1 

3.4 

3.4

Nov.

3.4 

3.4 

3.4 

 4.1 

3.4

3.4 

2.5 

2.5 

2.5

3.0

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

2.5 

2.5

2.1 

2.1

2.5 

2.5 

2.5 

2.5

3.0

3.0 

2.5 

1.2 

2.7 

2.6

Dec.

2.6 

2.3 

2.8 

3.3 

3.4

3.0 

3.0 

3.0 

3.0 

3.3

3.6 

3.6 

4.0 

3.8 

3.3

4.8 

6.5 

4.8 

4.0 

5.6

6.0 

7.0 

7.6 

17 

12

20 

28 

29 

28 

29 

29

Jan.

26 

24 

b20 

10 

12

8.3 

6.5 

7.6 

9.0 

12

14 

12 

411 

1,030 

173

61 

24 

15 

13 

13

14 

12 

11 

12 

12

11 

10 

10 

9.0 

7.7 

9.0

Feb.

8.3 

9.7 

10

11 

10

8.3 

8.3 

9.7 

7.0 

6.5

8.3 

7.6 

6.5 

5.2 

4.8

5.6 

6.0 

6.5 

6.0 

5.6

6.5 

64 

203 

335 

302

190 

165 

234

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Tli

lendar year

e period. ....... .......................

Peak discharge (base, 900 sec. -ft.).- Jan.

b Stage-discharge relation affected by ice

Mar.

226 

226 

226 

304 

313

287 

290 

578 

359 

241

169 

139 

112 

94 

76

63 

59 

50 

38 

26

25 

22 

21 

20 

22

23 

23 

21 

20 

21 

22

Apr.

 23 

25 

28 

29 

37

35 

34 

32 

32 

30

28 

25 

25 

20

11

7.2 

4.7 

3.1 

4.1 

3.1

2.7

1.9 

1.6 

1.6 

3.1

4.1 

2.7 

2.3 

1.3 

1.0

Secondfoot-days

112.2 

86.2 

286.3

-

2,019.1 

1,650.4 

4,116 

458.5 

69.0 

128.0

-

13 (11:30 p

May

0.3 

.7 

.7 

1.3 

1.6

1.3 

1.9 

1.9 

1.9 

1.6

1.6 

1.9 

1.6 

1.6 

1.3

2.3 

1.9 

2.7 

2.7 

3.1

4.1 

3.1 

2.7 

2.7

1.9

1.6 

1.9 

5.3 

4.1 

4.1 

3.6

Maximum

14 

4.1 

29

-

1,030 

335 

578 

37 

5.3 

35

-

June

3.1 

3.1 

1.9 

2.3 

2.3

3.1 

5.9 

4.7 

4.7 

35

13 

8.7 

6.5 

6.5 

3.6

2.7 

1.9 

2.3 

1.3 

1.3

.7 

1.0 

.7 

2.7 

2.7

2.7

1.6 

1.0 

.5 

.5

July

Minimum

1.2 

1.2 

2.3

-

6.5 

4.8 

20 

1.0 

.3 

.5

-

Aug.

Mean

3.62 

2.87 

9.24

-

65.1 

58.9 

133 

15.3 

2.23 

4.27

-

Sept.

Runoff in 

acre -feet

223 

171 

568

-

4,000 

3,270 

8,160 

909 

137 

254

17,690

.m. ) 2,900 sec. -ft.
342 LITTLE COLORADO RIVER BASIN

Show Low Creek at Show Low, Ariz.

Location.- Water-stage recorder, lat. 34°15'10", long. 110°01'40", in NE^ sec. 20, T. 10 N. 

RTinr~E., at bridge on U. S. Highway 60 at Show Low. Datum of gage is 6,309.22 feet 

above mean sea level, datum of 1929.

Drainage area.- 87 square miles.

Records available.- January 1941 to September 1949. Monthly records only prior to October 

1944.

Extremes.- Maximum discharge during year, 840 second-feet Jan. 13 (gage height, 5.38 feet); 

 no flow June 27, 30.

1941-49: Maximum discharge, 3,200 second-feet Mar. 14, 1941 (gage height, 9.30

feet), from rating curve extended above 600 second-feet on basis of velocity-area

studies and logarithmic plotting; no flow at times in most years.

Remarks.- Records good above 10 second-feet and fair below. Many small diversions above 

station for irrigation. Some regulation by storage reservoirs upstream.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

.8 

.7 

.6 

.4

.3 

.5 

.8

.4 

.5

.3 

.3 

.3 

.3 

.3

.3 

.3

.4 

.4 

.4

.3 

.2

.4 

.4 

.6

.7 

.7 

.8 

.7 

1.0 

2.2

Nov.

2.5 

1.8 

1.2 

.8 

.7

.6 

.3 

.1

.1

.1

.2

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Dec.

0.1 

:l 

.1 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

.2 

.3 

.3 

.3 

.3

.3 

.8 

40 

79 

15

39 

70 

41 

*11 

5.9 

4.1

Jan.

3.1 

2.0 

bl.5 

bl.l 

b.8

b.6 

b.5 

b.7 

2.0 

3.5

12 

118 

595 

180 

59

*28 

*b!9 

b!3 

bio 

8.4

7.3 

7.3 

15 

13 

12

bll 

blO 

b7.0 

b5.5 

b4.5 

b4.5

Feb.

4.4 

b5.1 

5.1 

5.1 

b5.1

bS.l 

b5.1 

5.1 

b5.5 

b5.5

b5.5 

5.5 

5.5 

b5.5

b5.5

b6 

*b7 

b8 

blO 

25

*69 

*175 

365 

373 

*338

243 

180

192

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

129 

106 

106 

153 

155

134 

367 

279 

101 

65

52 

46 

39 

33 

26

21 

20

18 

15 

15

16 

12 

9.6 

9.0 

9.6

12 

12 

34 

42 

30 

58

Apr.

34 

34 

77 

71 

89

50 

34 

26 

24

19

15 

13 

5.9 

3.5 

3.5

3.3 

3.1 

4.4 

3.5 

3.1

2.2 

2.6 

2.9 

2.4

1.1

1.1 

.4 

.3 

2.2

.4

Secondfoot-days

17.1 

10.3 

309.3

3,864.8

1,155.3 

2,069.6 

2,124.2 

531.9 

13.3 

12.6 

107.0 

185.4 

47.1

6,583,.!

May

0.3 

.2 

.2 

.2 

.1

.2 

.3 

.2 

.1 

.2

.6 

.2 

.7 

.8 

.2

.3 

.6 

.3 

.2 

.2

.2 

.4 

.2 

.6 

.3

.7 

.4 

.8 

1.6 

1.3 

.7

Maximum

2.2 

2.5

79

156

595 

373 

367 

89 

1.6 

2.6 

17 

38 

3.8

595

June

0.2 

.2

.1 

.1 

.2

.3 

.2 

.7 

.8 

.7

1.2 

2.6

1.5 

.3 

.2

.1 

.2 

.2 

.4 

.6

.4 

.1 

.1 

.6 

.2

.1 

0 

.1 

.2

0

July

0.1 

.7 

1.0 

3.3 

6.9

6.2 

2.9 

2.0 

2.0 

3.1

3.3 

17 

9.6 

7.3 

4.1

2.0 

.6 

.5 

.5 

2.2

4.4 

3.1 

3.5 

4.4 

3.3

2.4 

2.4 

1.8 

.6 

.3 

5.5

Minimum

0.2 

.1 

.1

0

.5 

4.4 

9.0 

.3 

.1 

0 

.1 

.1 

.4

0

Aug.

6.3 

3.3 

4.1 

3.5 

3.7

32 

12 

38 

27 

9.6

4.2 

2.4 

2.2 

1.5

1.0

1.0 

.2 

.1 

.8 

1.9

6.2 

8.4 

7.2 

3.4 

2.6

.8 

.5 

.5 

.4 

.4 

.2

Mean

0.55 

.34 

9.98

10.6

37.3 

73.9 

68.5 

17.7 

.43 

.42 

3.45 

5.98 

1.57

18.0

Sept.

0.4 

.6 

1.2 

1.9 

3.8

2.6

3.4 

2.4 

1.5

1.5

2.4 

3.4 

3.0 

1.9 

2.2

1.9 

1.5 

1.0 

.7 

.6

1.2 

1.2 

1.2

1.0 

1.0

.8 

.7 

.7 

.7 

.7

Runoff In 

acre -feet

34 

20 

613

7,680

2,290 

4,100 

4,210 

1,060 

26 

25 

212 

368 

93

13,050

Peak discharge (base. 200 see.-ft.).- Dec. 23 (11 p.m.) 29O sec.-ft.; Jan. 13 (l:3O p.m.) 840 sec. 

ft.; Feb. 23 (6 p.m.; 74O sec.-ft.; Mar. 7 (10 p.m.) 8OO sec.-ft.; Aug. 6 (7 p.m.) 330 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
LITTLE COLORADO RIVER BASIN 343

Puerco River near Adamana, Ariz.

Location.- Water-stage recorder, lat. 34°58'45", long. 109°47'40", in NEij sec. 9, T. 18 

N., K. 24 E., at highway bridge in Petrified Forest National Monument, a quarter of 

a mile downstream from Dead Wash and lj miles east of Adamana. Datum of gage is 

5,312.92 feet above mean sea level, datum of 1929.

Drainage area.- 2,760 square miles.

Records available.- March 1940 to September 1949 (discontinued).

Extremes.- Maximum discharge during year, 8,040 second-feet Aug. 8 (gage height, 6.9 

reet); no flow during much of year.

1940-49: Maximum discharge, 30,000 second-feet Aug. 12, 1946 (gage height, 10.4 

feet), from rating curve extended above 17,000 second-feet by logarithmic plotting; 

no flow parts of each year.

Remarks.- Records poor. Small diversions, -mostly by pumping, above station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

42 

12 

5 

3

2

1 

0 

0 

O 

0

0 

0 

0

0 

0

0 

0

0

1 

1

0 

0

0

0 

0

0 

0 

0 

0 

54 

294

Nov.

191 

63 

43 

a25 

a5

al

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0

o

0 

0 

0

0 

0

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

4 

19

11

2

1 

6 

14 

*6 

*3 

2

Jan.

1

o

0 

0 

0

0 

0 

0 

19 

51

31 

18 

24 

251 

*172

a30 

a8 

*3 

a2 

1

1 

0 

0 

0 

0

0

fO

fo

0

0 

0

Feb.

fO 

fO 

0 

0

o

0

0 

0 

0

0

0 

0 

0 

fO 

fO

0 

0 

0

0 

0

234 

*806 

1,190 

1,240 

*888

823 

591 

361

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

218 

218 

166 

146 

153

143 

140 

162 

117 

82

86 

73 

55 

84 

69

57 

51 

48 

42

40

55 

54 

55 

48 

45

34 

29 

f21 

f!4 

12 

14

Apr.

22 

22 

24 

32 

28

28 

26 

23 

24 

32

34 

35

f26 

f!5 

f!5

f30 

45 

51 

43 

46

42 

50 

66 

f71 

f47

f51 

f58 

42 

32 

34

Secondfoot -days

415 

328 

68

16,176.7

612 

6,133 

2,531 

1,094 

301 

1 

2,992 

5,315 

579

20,369

May

32 

f!4 

8 

5 

3

3

2 

1

0 

0

77 

86 

34 

19 

flO

f4 

a2 

al

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0 

0

Maximum

294 

191 

19

1,580

251 

1,240 

218 

71 

86 

1 

658 

1,810 

403

1,810

June

0 

0 

0 

0 

0

0

o

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

1

0

0 

0 

0 

0 

0

July

0 

0 

0

0 

0

16

7 

38 

40 

37

468 

132 

92 

50 

12

f2 

0 

0 

0 

15

145 

129 

278 

658 

608

216

26 

12 

f6 

f3 

f2

Minimum

0 

0 

0

0

0 

0 

12 

15 

0 

0 

0 

0 

0

0

Aug.

f4 

9 

117 

306 

364

179 

381 

1,810 

1,350 

f580

f!40 

f50 

f!9

f6

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0

0 

0 

0 

0

Mean

13.4 

10.9 

2.2

44.2

19.7 

219 

81.6 

36.5 

9.7 

.03 

96.5 

171 

19.3

55.8

Sept.

0 

0 

0 

0 

0

0

0 

0 

0 

f!3

f3 

f6 

f403 

f!07 

f40

f6 

fl 

0 

0

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

Runoff In 

acre-feet

823 

651 

135

32,100

1,210 

12,160 

5,020 

2,170 

597 

2.0 

5,930 

10,540 

1,150

40,390

Peak discharge (base, 5,000 see.-ft.).- Aug. 8 (9 a.m.) 8,040 sec.-ft. 

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of observer's notes.

f Discharge computed from partially estimated gage heights and once-daily gage readings by 

observer.

Note.- Stage-discharge relation affected by ice Dec. 3O to Jan. 8, Jan. 18 to Feb. 20.

939921 O - 51 23
344 LITTLE COLORADO RIVER BASIN

Chevelon Fork below Wildcat Canyon, near Wlnslow, Arlz.

Location.- Water-stage recorder, lat. 34°38', long. 110°43', in SW£ sec. 36, T. 15 N., 

R. 15 E., three-eighths of a mile downstream from Wildcat Canyon and 25 miles 

south of Wins low. Datum of gage is 5,905.16 feet above mean sea level, datum of 

1929 (Bureau of Reclamation bench mark).

Drainage area.- 275 square miles.

Records available.- May 1947 to September 1949.

Extremes.- Maximum discharge during year, 1,610 second-feet Apr. 14 (gage height, 6.23 

reet), from rating curve extended above 750 second-feet; no flow for extended periods. 

1947-49: Maximum discharge, that of Apr. 14, 1949; no flow for extended periods.

Remarks.- Records good except those for period of no gage-height record, which are poor. 

The station is just downstream from Wildcat Reservoir site. No diversion above 

station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

o

0 

0 

0

0

0 

0 

0 

0

o

0 

0 

0 

0

0

0 

0 

150 

337 

172

125 

188 

462 

216 

118 

88

Jan.

68 

50 

33 

18 

20

18 

17 

15 

15 

15

14 

15 

21 

115 

281

208 

136 

116 

114 

108

101 

95 

81 

67 

61

55 

50 

45 

45

40 

40

Feb.

40 

45 

45 

40 

40

35 

35

30 

30 

25

25 

25 

25 

25 

25

30 

30 

35 

62 

74

78 

93 

114 

151 

179

183 

174 

166

Month

Ooto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

128 

114 

116 

143 

199

241 

284 

468 

302 

250

290 

348 

354 

390 

526

707 

813 

786 

845 

993

484 

476 

375 

255 

218

170 

145 

190 

315 

239 

211

Apr.

164 

138 

128 

116 

145

295 

446 

552 

930 

557

685 

776 

806 

919 

802

588 

404 

372 

382 

318

275 

250 

228 

192 

155

132 

111 

88 

69 

55

Secondfoot-days

0 

0 

1,856

16,321.1

2,077 

1,859 

11,375 

11,078 

227.3 

0 

0 

0 

0

28,472.3

May

43 

34 

28 

22 

18

14 

12 

10 

7.9 

6.2

4.9 

4.1 

3.3 

3.1 

2.7

2.5 

2.2 

2.1 

2.0 

1.9

1.4 

.9 

.5 

.4 

.2

0 

0 

0 

0 

0 

0

Maximum

0 

0 

462

635

281 

183 

993 

930 

43 

0 

0 

0 

0

993

June

Minimum

July

0 

0 

0

0

14 

25 

114 

55 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

59.9

44.6

67.0 

66.4 

367 

369 

7.33 

0 

0 

0 

0

78.0

Sept.

Runoff In 

acre-feet

0 

0 

3,680

32,370

4,120 

3,690 

22,560 

21,970 

451 

0 

0 

0 

0

56,470

Peak discharge (base, 400 see.-ft.).- Dec. 23 (8 p.m.) 808 sec.-ft.; Dec. 28 (4 a.m.) 614 sec.-ft. 

Mar. 8 (2 p.m.J 493 sec.-ft.; Mar. 20 (8:30 a.m.) 1,560 sec.-ft.j Apr. 14 (6 a.m.) 1,610 sec.-ft.

Note.- No gage-height record Jan. 26 to Feb. 18; discharge computed on basis of records for station 

near Wlnslow.
LITTLE COLORADO RIVER BASIN 

Chevelon Pork near Winslow, Ariz.

345

Location.- Water-stage recorder, lat. 34°56', long. 110°31' , in SE^SW^: sec. 27, T. 18 N., 

IT! 17 s., 3 miles upstream from mouth and 12 miles southeast of Winslow. Altitude of 

gage, about 4,905 feet (from river-profile map).

Drainage area.- 1,010 square miles, including some area which is probably noneontributing.

Records available.- December 1905 to December 1908 (January 1907 to December 1908, gage 

heights and seme discharge measurements only), December 1915 to December 1919. March 

1929 to February 1934, September 1935 to September 1949.

Average discharge.- 21 years (1916-19, 1929-33, 1935-49), 52.6 second-feet.

Extremes.- Maximum discharge during year, 1,150 second-feet Apr. 14 (gage height, 6.95 

feet); minimum daily, 2.8 second-feet July 9.

1916-19, 1929-49: Maximum discharge, 16,100 second-feet Apr. 4, 1929 (gage height, 

17.8 feet), from rating curve extended above 4,000 second-feet; minimum, about 1 second-foot at times in each of several years.

Remarks.- Records good except those for periods of fragmentary gage-height record and 

ice or wind effect, which are fair. No diversions above station. Chevelon Canal diverts 2 miles downstream from station.

Revisions (water years).- W 1049: 1916, 1918(M).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

.3 

.0 

.0 

.7 

.0

.O 

.3 

.3 

.3 

.3

.3

.0 

.0 

.8 

.7

.3 

,3 

.3 

.8 

.1

.1 

.5 

.2 

.2 

.2

.2 

.9 

.8 

.0 

.3 

5 5

Nov.

5.8 

5.8 

5.5 

5.8 

6.1

5.8 

5.8 

6.1 

5.8

5.8

5.8 

5.5 

5.2 

4.9 

4.9

4.9 

4.6 

4.6 

4.3 

4.6

4.6 

4.6 

4.9 

4.6 

4.9

4.6 

5.5 

4.3 

4.3 

4.3

Dec.

4.9

4.6 

4.3 

e4.o 

4.3

4.9 

5 2 

4.9 

5.2 

4.9

4.9 

4.9 

4.9 

4.6 

e4.0

4.3 

4.9 

5.2 

5.5 

5.2

4.9 

5.2 

7.0 

6.4 

18

156 

117 

181 

393 

204 

123

Jan.

92 

b65 

b40 

b30

b22

b!6 

14 

12 

11 

10

9.0

8.2 

12 

10 

8.6

234 

f214 

f!61 

110 

100

103 

104 

e93 

84 

74

57 

49 

b45 

b45

b40 

b40

Feb.

b40 

b40 

b45 

45 

42

38

33 

32 

29 

27

626 

623 

b25 

b25 

b25

b25 

27 

28 

29 

36

59 

68 

81 

109 

146

174 

181 

181

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Ma

lendar year 1948

ter year 1948-49 .......................

Mar.

170 

140 

125 

122 

138

187 

240 

348 

504 

319

257 

306 

364 

364 

408

558 

713 

756 

734 

800

800 

393 

438 

333 

223

190 

150

122 

143 

272 

206

Apr.

181 

145 

122 

103 

88

105 

272 

487 

686 

728

593 

692 

726 

797 

786

653 

530 

393 

378 

378

306 

261 

242 

219 

186

159

136 

116 

92 

75

Secondfoot-days

140.7 

154.2 

1,311.1

16,134.6

1,912.8 

1,639 

10,823 

10,635 

342.5 

158.5 

143.1 

150.2 

299.7

27,709.8

May

59 

46

35 

25 

19

16 

12 

9.8 

6.4 

4.9

4.6

4.3 

4.3 

3.5 

3.5

4.6 

5.5 

5.8 

5.8 

5.5

6.4 

6.7

6.1 

6.1 

6.1

5.5 

5.8 

5.5 

64.9 

e4.6 

4.3

Maximum

6.1 

6.1 

393

616

234 

181 

800 

797 

59 

19 

13 

8.6 

79

800

June

4.9 

5.2 

e4.9 

4.6 

e5.2

e6.4 

8.6 

7.0

6.7 

6.4

7.8 

66.4 

4.6 

4.6 

4.3

3.7 

3.3 

4.3 

3 .8 

3.5

3.7 

3.8 

e3.3 

19

6.4

3.7 

3.2 

3.0 

3.0 

3.2

July

3.2 

3.3 

3.5 

3.5 

3.2

3.2 

3.3 

3.0 

2.8

3.0

11 

13 

6.1 

5.2 

4.6

4.6 

4.6 

4.0 

4.0 

4.6

4.3 

4.3 

4.3 

4.6 

4.6

4.3 

4.6 

4.6 

4.9 

4.6 

4.3

Minimum

3.7 

4.3 

4.0

2.9

8.2 

23 

122 

75 

3.5 

3.0 

2.8 

3.8 

4.3

2.8

Aug.

.6 

.6 

.6 

.9 

.6

.3 

.0 

.3 

.9 

.3

.8 

.0 

.0 

.8 

.0

.0 

.0 

.3 

.3 

.6

.3 

,0 

.1

.8 

.2 

.2 

.2 

5.5 

5.8

Mean

4.54 

5.14 

42.3

44.1

61.7 

58.5 

349 

354 

11.0 

5.28 

4.62 

4.85 

.9.99

75.9

Sept.

5.5 

5.2 

5.5 

6.7 

7.0

6.1 

6.1 

6.1 

10 

54

7.8 

6.1 

79 

15 

8.2

6.1 

5.5 

5.5 

5.5 

4.9

4.6 

4.3 

4.3 

4.3 

4.3

4.3 

4.3 

4.3 

4.6 

4.6

Runoff in 

acre-feet

279 

306 

2,600

32,000

3,790 

3,250 

21,470 

21,090 

679 

314 

284 

298 

594

54,950

Peaki'discharge (base. 400 sec.-ft.}.- Dec. 29 (8 a.m.) 454 sec.-ft.; Mar. 9 (4 to 10 a.m.) 540 

sec.-ft.; Mar. 21 (12:30 a.m.) 1,120 sec.-ft.; Apr. 14 (9:30 p.m.) 1,150 sec.-ft. 

b Stage-discharge relation affected by ice.

e Gage height affected by wind; discharge computed from estimated non-wind-affected gage height. 

f Fragmentary gage-height record; discharge computed from partly estimaced gage height.
346 LITTLE COLORADO RIVER BASIN

Clear Creek below Willow Creek, near Winslow, Ariz.

Location.- Water-stage-recorder, lat. 34°40', long. 111°00', in NWvNEtj (revised) sec. 30, 

T. 15 N., R. 13 E., 2 miles downstream from Willow Creek and 30 miles southwest of 

Winslow.

Drainage area.- 321 square miles.

Records available.- June 1947 to September 1949.

Extremes.- Maximum discharge during year, 1,990 second-feet Apr. 15 (gage height, 9.75 

feet)'; no flow for extended periods.

1947-49: Maximum discharge, that of Apr. 15, 1949; no flow for extended periods.

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Bo diversion above station. Station is downstream from Willow Reservoir site.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

6 

0 

0

0 

0 

0 

0 

0

0 

»0 

0

0

o

0

0

o

0 

0

0 

0 

213 

534 

163

119 

220 

628 

254 

140 

122

Jan.

82 

53 

48 

45

40

35 

30 

25 

25 

20

20 

20 

20 

25 

100

300 

150 

120 

120 

120

120 

110

100 

80 

70

60 

50 

45 

45 

40 

40

Feb.

40 

45 

45 

40 

40

35 

35 

35

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

35

40 

50 

80 

163 

244

287 

276 

254

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Peak discharge (base, 500 sec. -ft.).- Dec.

sec. -ft.; Mar. 8 (7 p.m.; 766 sec. -ft.: Mar. 

ft. 

Note . - No gage-height record Jan. 4 to Feb 

stage and records for station near Winslow a

Mar.

214 

184 

189 

238 

332

433 

517 

712 

517 

433

517 

626 

643 

660 

823

1,030 

1,160 

1,140 

1,160 

1,360

882 

862 

694 

502 

420

309 

256 

320 

502 

407 

394

Apr.

298 

229 

240 

211 

240

420 

660 

902 

1,310 

1,030

1,160 

1,310 

1,360 

1,580 

1,580

1,410 

1,240 

1,140 

1,050 

1,010

1,010 

1,070 

1,120 

1,050 

964

922

823 

730 

610 

502

Secondfoot-days

0 

0 

2,393

30,409.5

2,158 

2,074 

18,436 

27,181 

2,353.1 

13.6 

122.5 

39.7 

0

54,770.9

May

381 

320 

276 

233 

188

152 

128 

102 

83 

69

59 

50 

41 

35 

29

27 

28 

28 

28 

22

16 

12 

9.9 

8.2 

6.8

5.1 

4.2 

3.5 

2.8 

2.8 

2.8

Maximum

0 

0 

628

1,460

300 

287 

1,360 

1,580 

381 

2.7 

46 

6.3 

0

1,580

June

1.6

1.2 

.7 

.4

.1

0 

0 

0 

0

0

.6 

2.2 

2.7 

1.8 

1.5

.6

.1 

0 

0 

0

0 

0 

0

.1

0

0 

0 

0 

0

0

July

0

0 

0 

0 

0

0 

0 

0 

0

o

0 

0

o

0

0

o

0 

0 

0

0

0 

0 

0 

.6 

46

36 

20 

10 

5.8 

2.8 

1.3

Aug.

0.8 

.4 

.1 

2.1 

3.3

4.1 

3.5 

2.4 

2.4 

2.5

6.3 

6.3 

3.3 

1.5 

.6

.1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

sept.

Minimum Mean %£«£

00 0 

00 0 

0 77.2 4,750

0 83.1 60,320

20 69.6 4,280 

30 74.1 4,110 

184 595 36,570 

211 906 53,910 

2.8 75.9 4,670 

0 .45 27 

0 3.95 243 

00 

0 1.28 79 

0

0 150 108,600

23 (9:30 p.m.) 1,090 sec. -ft.; Dec. 28 (5:30 a.m.) 842 

20 (7 a.m.) 1,520 sec. -ft.; Apr. 15 (6 a.m.) 1,990 see.

. 23; discharge computed on basis of recorded range in 

id stations on Chevelon Fork.
LITTLE COLORADO RIVER BASIN 

Clear Creek near Winslow, Ariz.

347

Location.- Water-stage recorder, lat. 34°58', long. 110°38', in SE£ sec. 9, T. 18 N., 

IT16 E. , ij miles upstream from mouth and 5 miles southeast of Winslow. Control 

for station is crest of diversion dam 1,200 feet downstream.

Drainage area.- 607 square miles.

Records available. - March 1929 to February 1934, September 1935 to September 1949. j June 

lyub to March 1907 (gage heights and discharge measurements), April 1907 to January 

1909 (gage heights only), at site 2f miles upstream.

Average discharge.- 18 years (1929-33, 1935-49), 88.8 second-feet.

Extremes.- Maximum discharge during year, 1,970 second-feet Apr. 16 (gage height, 7.00 

feet); no flow on many days .

1929-49: Maximum discharge, 50,000 second-feet Apr. 4, 1929 (gage height, 18.1 

feet), from rating curve extended above 13,500 second-feet on basis of velocity-area 

studies; no flow on many days in each year.

Remarks.- Records good except those below 10 second-feet and those for periods of no 

gage-height record, which are poor. Water diverted above station for municipal and 

railroad use. Records show discharge o.ver dam and do not include flow in canal that 

diverts at dam or leakage through dam. Average leakage below dam this year was 2.8 

second-feet based on one discharge measurement.

Revisions (water years).- W 859: 1929.

Discharge, In second-feet, water year October 194B to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.1 

.2

.2

.2 

.3

.7 

.7

.4

.3 

.3 

.2 

.3

.3 

.3 

.3 

.2 

.2 

.2

Nov.

0.3 

.3 

.2 

.2 

.2

.2 

.2 

.3 

.4

.2 

.2

.2

.2 

.2

.2 

.2

.3

.3 

.3 

.3

.3 

.3

.3 

.2

.2

Dec.

0.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.2

.2 

.2 

.2

.2 

.2 

.3 

.3

.3

.2 

.3 

.7 

.3

.3

.8 

126 

133 

464 

312 

180

Jan.

156 

1E8 

68 

50 

35

25 

17 

12 

9 

8

7 

6 

7 

6 

5

100 

230 

180 

123 

123

128 

174 

150 

123 

102

80 

61 

45 

39 

42 

42

Feb.

36 

39 

45 

45

45

42 

39 

39 

34 

32

32 

30 

30 

26

30

32 

30 

30 

30 

30

32 

39 

50 

83 

150

250 

270 

270

Month

Goto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 194E

ter year 1948-49 .......................

Mar.

250 

200 

190 

200 

250

300 

400 

600 

700 

500

450 

550 

600 

650 

700

838 

1,000 

1,100 

1,100 

1,100

1,100 

1,000 

685 

545 

450

350 

300 

250 

300 

500 

415

Apr.

391

306 

277 

230 

220

300 

500 

600 

924 

1,260

1,020 

1,180 

,310 

,440 

,630

,590 

,390

,210 

,120 

,020

967 

978

1,060 

1,070 

1,000

912

880 

785 

685 

572

Secondfoot -days

6.5 

7.2 

1,221.9

26,817.3

2,281 

1,840 

17,573 

26,827 

2,647.8 

2.2 

0 

0 

5.2

52,411.8

May

474 

367 

306 

263 

224

186 

156 

118 

102 

80

68 

61 

45 

36 

30

28 

22 

16 

15 

13

11 

9.8 

8.2 

6.6 

2.0

.2 

0 

0 

0 

0 

0

Maximum

0.7 

.4 

464

1,460

230 

270 

1,100 

1,630 

474 

1.2 

0 

0 

.7

1,630

June

OOOOOOOO 1 OOOOOOO M 

July

Minimum

0 

.2 

.2

0

5

26 

190 

220 

0 

0 

0 

0 

0

0

Aug.

Mean

0.21 

.24 

39.4

73.3

73.6 

65.7 

567 

894 

85.4 

.07 

0 

0 

.17

144

Sept.

ooooo ooo 

Runoff In 

acre-feet

13 

14 

2,420

53,190

4,520 

3,650 

34,860 

53,210 

5,250 

4.4 

0 

0 

10

104,000

Peak discharge (base 700 sec.-ft.).- Dec. 29 (9 a.m.) 705 sec.-ft.; Mar. 9 (about 10 p.m.) 

.m.; 1,270 sec.-ft.; Apr. 16 (1 a.m.) 1,970 sec.-ft.

b. 25 to Mar. 15, Mar. 17-22, 25-30, Apr. 4-7; discharge

710 sec.-ft.: Mar. 21

Note.- No gage-height record Jan. 4-18,

computed on basis of recorded ranges in stage when available and records for stations below Willow 

Creek, near Winslow, and on Chevelon Fork near Winslow.
348 LITTLE COLORADO RIVER BASIN

Moenkopi Wash near Tuba, Ariz.

Location.- Water-stage recorder, lat. 36°OL', long. 111°24', in T. 31 N., R. 9 E., unsurveyed, on Nava.jo Indian Reservation, at bridge on U. S. Highway 89, 9 miles upstream from mouth, 11 miles north of Cameron, and 11 miles southwest of Tuba. Datum 

of gage is 4,310.96 feet above mean sea level (Arizona Highway Department bench mark).

Drainage area.- 2,490 square miles.

Records available.- July 1926 to September 1949.

Average discharge.- 23 years, 20.7 second-feet.

Extremes.- Maximum discharge during year, 2,210 second-feet Aug. 9 (gage height, 4.78 

reet); no flow on many days in spring and summer.

1926-49: Maximum discharge, 15,100 second-feet Aug. 4, 1929, by slope-area method; 

no flow on many days in each year.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Revisions (water years).- W 899: 1935-39.

Discharge, in second-fee't, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2B 

29 

30 

31

Oct.

20 

9.5 

5.7 

62 

46

28 

22 

a!6 

alO

a7

a5 

a5 

a* 

a4 

a3

a3 

a3 

a4 

9.3 

8.3

7.8 

3.6 

2,3 

1.8 

1.4

1.4 

1.8 

2.3 

27 

22 

192

Nov.

f44

fll 

5.7 

4.0 

3.2

2.9 

2.9 

2.9 

2.6 

2.0

*3.2 

3.6 

3.2 

2.9 

3.2

3.2 

3.2 

b2.6 

bl.2 

*bl.2

b2.6 

b2.6 

2.6 

3.2 

4.8

3.2 

b.6 

b.4 

*b.4 

b.4

Dec.

2.0 

3.2 

*4.0 

6.7 

1.8

4.4

2.9 

5.2 

2.9 

2.6

4.4

5.7 

5.2 

6.2

6.7

4.4 

3.6 

7.8 

4.8 

2.9

2.6 

5.7 

39 

a 10 

a8

a6 

a5 

a4 

a4 

a4 

a4

Jan.

83

a2 

a2 

*1.4 

.8

.2 

0

0 

9 

0

0 

1.8

*97 

f!34 

f31

b20 

*blO 

b6 

a4 

a3

a4 

a5 

aS 

a4 

a4

a3 

a3 

a2 

al 

al 

*bl

Feb.

bl 

bl 

*bl 

b2 

b4

b7 

blO 

34 

21

13

11

24 

11 

9.5 

*7.8

9.5 

8.3 

11 

16 

24

36 

64 

86 

62 

a 50

a 50 

a 60 

a60

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

Lender year 1948 

ary

1................ .......................

ter year 1946-49 .......................

Mar.

*56 

34 

21 

38

71

71 

54 

36 

37 

32

a 25 

a!7 

alO 

a5 

a3

alo 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

538.2 

129.5 

179.7

3,086.8

349.2 

694.1 

512 

0 

0 

247.7 

146.6 

864.8 

311.1

3,972.9

May

Maximum

192 

44 

39

301

134 

86 

71 

0 

0 

206 

53 

544 

215

544

June

0 

0 

0 

0 

0

11

fS.l

r.6

0 

0

0 

0 

0 

0 

0

0 

0 

206

res

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

Minimum

July

0 

0 

0 

26

r.2

0 

0 

0 

0 

1.6

53

r40

f9.5 

4.4 

2.3

1.6 

.6 

.1 

0 

2.6

.3 

2.1 

2.2

.1 

0

0 

0 

0 

0 

0 

0

1.4

.4 

1.8

0

0

1

0 

0 

0 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

0 

0 

198 

544

f!2

r.s

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

69 

27

f9.5

r4.o

f.8 

0 

0

0

Mean

17.4 

4.32 

5.80

8.43

11.3

24.8 

16.5 

0 

0 

8.26 

4.73 

27.9 

10.4

10.9

Sept.

0 

0 

0 

0 

0

0 

0 

0 

.6 

215

f28

rzo ris 

rs.9

f7.2

4.8 

3.2 

2.0 

1.6 

1.4

1.0 

.6 

.3 

.2 

.1

0 

0 

.4 

.8 

2.0

Runoff In 

acre -feet

1,070 

257 

3i56

6,120

693 

1,380 

1,020 

0 

0 

491 

291 

1,720 

617

7,900

Peak discharge (base, 1,200 sec.-ft.).- Aug. 8 (2:30 a.m.) 1,560 aec.-ft.; Aug. 9 (4 a.m.) 2,210 

sec.-ft.; SeptT 10 (l a.m.) 1,220 sec.-ft.

* Winter discharg* measurement made on this day.

a No gage-heignt irecord; discharge computed on basis of weather records and records for adjacent 

stations on Little -Colorado River.

b Stage-discharge relation affected by ice.

f Discharge computed from partly or wholly estimated gage heights.
BRIGHT ANGEL CREEK BASIN 

Bright Angel Creek near Grand Canyon, Ariz.

349

Location.- Water-stage recorder, lat. 36°05'55", long. 112°05'40", 1,000 feet upstream 

from mouth and 11 miles by trail from Grand Canyon, Coconino County. Datum of gage is 

2,452.1 feet above mean sea level (preliminary datum of 1929).

Drainage area.- 100 square miles.

Records available.- October 1923 to September 1949.

Average discharge.- 26 years, 39.0 second-feet.

Extremes.- Maximum discharge during year, 206 second-feet Apr. 28 (gage height, 2.71 

reet); minimum daily, 15 second-feet Aug. 31, Sept. 1.

,1923-49: Maximum discharge, 4,400 second-feet Aug. 19, 1936, by slope-area method; 

minimum daily, 15 second-feet on several days during summers of 1934 and 1949.

Remarks.- Records good except those for Apr. 20 to May 7, Aug. 28-31, which are fair, 

small diversions above station for irrigation. Some fluctuation in flow caused by 

oower plant 9 miles above station; no regulation by storage

Discharge, In second-feet, water year October 1948 to Septemberl949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

17 

17 

17 

18 

18

17 

17 

17 

17 

17

17 

17 

17 

17 

17

17 

17 

17 

19 

18

17 

17 

17 

17 

17

17 

17 

18 

18 

18 

19

Nov.

18 

18 

18 

18 

18

17 

17 

17 

17 

17

18 

18 

18 

17 

18

18 

17 

18 

18 

18

18 

18 

18 

18 

18

18 

18 

18 

18 

19

Dec.

19 

19 

19 

19 

20

20 

20 

20 

20 

. 20

20 

20 

20 

21 

21

22 

23 

22 

22 

22

22 

23 

36 

22 

20

20 

21 

21 

20 

20 

20

Jan.

20 

22 

21 

21 

20

20 

20 

20 

20 

21

21 

21 

24 

22 

22

21 

21 

20 

20 

21

21 

21 

21 

21 

21

22 

21 

21 

20 

20 

20

Feb.

a20 

a20 

a20 

a21 

a21

21 

21 

21 

20 

20

20 

20 

21 

20 20'

21 

22 

24 

26 

26

26 

28 

30 

31 

28

27 

26 

26

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1946 .

ter year 1948-49 .......................

Mar.

24 

24 

24 

24 

24

24 

23 

23 

22 

21

22 

22 

21 

21 

22

22 

22 

22 

22 

23

23 

22 

22 

22 

22

21 

20 

20 

22 

22 

22

Apr.

22 

21 

21 

20 

20

20 

21 

24 

24 

25

26 

31 

38 

44 

51

58 

68 

76 

80 

87

104 

110 

107 

151 

173

182 

184 

189 

189 

171

Secondfoot-days

537 

534 

654

9,584

647 

647 

690 

2,337 

2,017 

749 

572 

524 

535

10,443

May

120 

111 

113 

105 

97

84 

73 

70 

69 

73

77 

71 

66 

63 

65

66 

60 

58 

57 

53

51 

47 

46 

45 

44

43 

42 

39 

38 

37 

34

Maximum

19 

19 

36

104

24 

31 

24 

189 

120 

38 

21 

19 

33

189

June

"32 

28 

28 

26 

25

25 

24 

26 

27 

26

38 

29 

27 

26 

25

24 

24 

26 

24 

23

23 

22 

22 

22 

22

22 

21 

21 

21 

20

July

20 

20 21' 

21 

a20

a20 

a!9 

18 

17 

19

18 

18 

19 

18 

18

18 

18 

17 

18 

18

18 

18 

18 

19 

18

17 

17 

18 

18 

18 

18

Minimum

17 

17 

19

16

20 

20 

20 

20 

34 

20 

17 

15 

15

15

Aug.

18 

17 

17 

17 

17

18 

19 

19 

19 

18

17 

17 

17 

17 

17

17 

16 

16 

16 

16

. 16 

16 

17 

17 

16

16 

17 

a!7 

a!6 

a!6 

al5

Mean

17.3 

17.8 

21.1

26.2

20.9 

23.1 

22.2 

77.9 

65.1 

25.0 

18.4 

16.9 

17.8

28.6

Sept.

15 

16 

16 

16 

17

16 

16 

16 

a!8 

19

17 

16 

27 

19 

18

17 

17 

17 

17 

17

17 

17 

17 

17 

17

17 

33 

19 

17 

17

Runoff In 

acre -feet

1,070 

1,060 

1,300

19,020

1,280 

1,280 

1,370 

4,640 

4,000 

1,490 

1,130 

1,040 

1,060

20,720

Peak discharge (base, 150 see.-ft.J.- Apr. 28 (7:30 a.m.) 206 sec. -ft. i June 11 (3 p.m.) 152 see.- ft.

a No gage-height record; discharge interpolated on basis of trend of adjoining good record and 

recorded range in stage.
350

VIRGIN RIVER BASIN

Virgin River at Virgin, Utah

Location.- Chain gage, lat. 37°13', long. 113°11', in SE^SE^ see. 22, T. 41 S., R. 12 W., 

at east side of Virgin, 0.5 mile downstream from North Creek.

Drainage area.- 934 square miles.

Records available.- April 1909 to September 1949 (fragmentary prior to October 1926).

Average discharge.- 32 Years (1909-14, 1915-16, 1917-18, 1923-24, 1925-49), 211 secondreet.

Extremes.- Maximum daily discharge during year, 900 second-feet Sept. 9; minimum daily, 

 GO second-feet Oct. 8, 9, 11.

1909-49: Maximum discharge observed, 13,500 second-feet Mar. 3, 1938 (gage height,

10.7 feet, from floodmarks), by slope-area method; minimum observed, 23 second-feet

Sept. 30, 1931.

Remarks.- Records fair. Gage read once daily. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

a64 

64 

64 

66 

64

64 

64 

60 

60 

64

60 

64 

68 

68 

72

68 

68 

80 

85 

80

85 

85 

85 

80 

72

85 

80 

85 

85 

119 

80

Nov.

80 

80 

80 

80 80

80 

85 

90 

90 

85

90 

90 

100 

95 

95

100 

95 

95 

100 

105

105 

110 

102 

97 

92

92 

88 ioe

108 

97

Dec.

105 

95 

95 

100 

95

100 

100 

100 

100 

110

110 

110 

110 

110 

110

116 

116 

122 

122 

122

127 

127 

122 

105 

95

85 

105 

95 

105 

110 

116

Jan.

110 

110 

105 

110 

116

105

116 

105 

116 

116

124 

136 

149 

136 

122

105 

100 

97 

97 

102

108 

110 

102 

102 

100

105 

105 

108 

102 

105 

108

Feb.

108 

108 

110 

116 

116

116 

124 

124 

133 

133

113 

113 

124 

130 

133

146 

162 

156 

162 

180

206 

198 

187 

210 

206

184 

198 

238

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

St............... .......................

ter year 1948-49 .......................

Peak discharge (base, 900' sec. -ft.) .- Sept

Mar.

152 

146 

149 

169 

187

162 

169 

169 

162 

156

162 

169 

169 

184 

184

198 

206 

222 

214 

206

206 

206 

230 

184 

169

162 

169 

206 

206 

184 

198

Apr.

206 

184 

162 

169 

191

206 

214 

238 

273 

269

282 

316 

311 

292 

301

311 

311 

320 

320

361

393 

438 

450 

438 

395

404 

456 

655 

583 

399

Secondfoot-days

2,288 

2,788 

3,340

43,693

3,432 

4,234 

5,655 

9,846 

11,835 

6,548 

2,973 

2,561 

4,619

60,119

May

388 

399 

410 

421 

504

346 

366 

356 

377 

366

356 

335 

325 

325 

a328

340 

372 

663 

416 

536

450 

421 

416 

361 

372

351 

340 

301 

292 

301 

301

Maximum

119 

110 

127

480

149 

238 

230 

655 

663 

632 

256 

105 

900

900

June

296 

296 

287 

549 

311

632 

366 

356 

296 

222

222 

214 

187 

173 

162

159 

152 

159 

156 

143

124 

116 

127 

122 

133

124

116 

110 

119 

119

July

116 

119 

133 

256 

102

105 

102 

90 

90 

90

97 

95 

83 

80 

78

80 

76 

78 

78 

88

85 

90 

85 

85 

88

92 

88 

88 

80 

80 

76

Minimum

60 

80 

85

41

97 

108 

146 

162 

292 

110 

76 

66 

97

60

Aug.

80 

78 

78 

83 

78

72 

72 

76 

68 

70

70 

66 

66 

72 

83

78 

76 

78 

80 

80

83 

90 

97 

105 

97

100 

100 

95 

88 

100 

102

Mean

73.8 

92.9 

108

119

111 

151 

182 

328 

382 

218 

95.9 

82.6 

154

165

Sept.

97 

100 

108 

105 

119

116 

130 

d2oO 

d90O 

173

156 

146 

187 

119 

127

136 

149 

159 

143 

110

110 

113 

110 

110 

108

105 

108 

108 

159 

108

Runoff in 

acre-feet

4,540 

5,530 

6,620

86,660

6,810 

8,400 

11,220 

19,530 

23,470 

12,990 

5,900 

5,080 

9,160

'119,200

. 8 or 9 (time unknown) about 1,000 sec. -ft.

a No gage-height record; discharge Interpolated, 

d Doubtful gage-height record; discharge computed on basis of records for North Fork Virgin River 

near Sprlngdale, Utah, and Virgin River at Llttlefleld, Ariz.
VIRGIN RIVER BASIN 361

Virgin River at Littlefield, Ariz.

Location.- Water-stage recorder, lat. 36°53', long. 113°56', in SW^SWij sec. 4, T. 40 N., 

R~! nT"W., three-eighths of a mile downstream from Beaverdam Wash, three-eighths of a 

mile upstream from Littlefield, and 36 miles upstream from water line of Lake Mead 

at elevation 1,221 feet above mean sea level. Datum of gage is 1,763.68 feet above 

mean sea level, datum of 1929.

Drainage area.- 5,090 square miles.

Records available.- October 1929 to September 1949.

Average discharge.- 20 years, 260 second-feet.

Extremes.- Maximum discharge during year, 2,290 second-feet Sept. 10 (gage height, 6.35 

feet); minimum, 60 second-feet July 16, 20.

1929-49: Maximum discharge, 22,000 second-feet Mar. 3, 1938 (gage height, 12.8 

feet, present datum, from floodmarks) r by slope-area method; minimum observed, about 

50 second-feet on many days in several years, resulting from nearby fairly uniform 

spring inflow.

Remarks.- Records good. Many diversions above and several below station for irrigation. 

Kecords of chemical analysis, water temperatures, and suspended sediment loads for 

water year 1949 given in Water-Supply Paper 1163.

Revisions (water years).- W 959: 1932. W 979: 1930-31, 1933-37.

Discharge, in second-feet, water, year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

68 

68 

68 

70 

72

72 

70 

72 

74 

76

78 

78 

80 

82 

82

82 

84 

86 

99 

124

117 

117 

110 

112 

114

110 

112 

120 

120 

137 

260

Nov.

197 

179 

164

191 

176

182 

179 

179 

176 

156

167 

156 

159 

159 

156

156 

159 

134 

132 

134

142 

159 

153 

145 

153

164 

148

140 

148 

145

Dec.

150 

153 

140 

150 

140

148 

148 

156 

164 

176

164 

167 

176 

161 

156

150 

148 

148 

148 

145

137 

142 

170 

176 

161

167 

185

282 

185 

182 

179

Jan.

188 

191 

153 

145 

145

164 

179 

191 

204 

207

204 

201 

234 

271 

241

207 

176 

179 

201

234

259 

231 

267 

249 

197

210 

210 

207 

207 

204 

207

Feb.

201 

201

204 

207 

238

197 

210 

201 

179 

182

194 

194 

194 

182 

185

182 

182 

185 

210 

256

337 

361 

554 

480 

390

395 

315 

425

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mov

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 . s .....................

Mar.

400 

271 

267 

271 

302

345 

286 

282 

259 

249

252 

267 

224 

234 

252

259 

267 

275 

245 

341

490 

324,

354 

350 

302

252 

231

220 

328 

275 

220

Apr.

267 

306 

294 

290 

259

271 

298 

350 

548 

440

410 

400 

420 

415

415

390 

405 

485 

496 

520

597 

693 

830 

986

866

761 

740 

782 

740 

698

Secondfoot-days

3,014

4,788 

5,054,

55,844

6,363 

7,241 

8,894 

15,372 

14,120 

5,941 

2,270 

1,995 

3,536

78,588

Peak discharge (base, 1,500 sec. -ft. }.- Sept. 8 (5 p.ra

May

592 

550 

616 

658 

532

410 

336 

358 

422 

405

368 

306

286 

302 

336

324 

252

834 

920

838

904 

726 

604 

450 

390

336 

302 

241 

191 

170 

161

Maximum

260 

197

282

646

271 

554 

490 

986 

920 

691 

188 

68 

769

986

June

153

132 

120 

170

332

589 

691 

648 

504 

405

279 

227 

210 

179 

145

108 

80 

80 

80 '99

70 

74 

74 

72 

72

70 

72 

70 

68 

68

July

68 

68 

70 

95 

18<3

145

103 

74 

70 

65

65 

65 

63 

63 

63

63 

63 

63 

63 

63

63 

63 

63 

62 

62

63 

63 

63 

63 

62 

63

Minimum

68 

132 

137

56

145 

179 

220 

259 

161 

68 

62 

62 

65

62

Aug.

65 

63 

63 

63

63

63 

63 

63 

63 

63

62 

62

63 

62 

62

62 

62 

62 

63 

65

65 

68 

67 

67 

67

67 

67 

68 

68 

67 

67

Mean

97.2 

160 

163

153

205 

259 

287 

512 

455 

198 

73.2 

64.4 

118

215

.) 1,690 sec. -ft.; Sept. 10 (3:30

Sept.

67 

67 

67 

65 

65

65 

67 

161 

67 

769

222 

122 

94 

112 

99

84 

84 

78 

78 

78

78 

78 

78 

76 

78

80 

82 

136 

135 

204

Runoff In 

acre-feet

5,980 

9,500 

10,020

110,800

12,620 

14,360 

17,640 

30,490 

28,010 

11,780 

4,500 

3,960 

7,010

155,900

a.m.) 2,29(
352 VIRGIN RIVER BASIN

North Pork Virgin River near Springdale, Utah

Location.- Staff gage, lat. 37°12'35", long. 112°58'40", in SW^NW^ sec. 22, T. 41 S., R. 

10 w. , in Zion National Park, 0.2 mile downstream from point of diversion of Springdale Canal, 0.5 mile downstream from Pine Craek, and 1.9 miles northeast, of Springdale.

Drainage area.- 33§ square miles.

Records available.- October 1932 to September 1949. .June to November 1923 and April 1925 

to September 1933 at site a quarter of a mile upstream from Pine Creek.

Average discharge.- 23 years (1925-31, 1932-49), 105 second-feet.

Extremes - Maximum discharge during year, 1,100 second-feet Sept. 8 or 9 (gage height, 

4.52 feet, from f loodmark) ; minimum daily, 30 second-feet Sept. 5.

1925-49: Maximum discharge, 7,000 second-feet Mar. 3, 1938 (gage height, 11.95 

feet, present datum, from f loodmark) , by slope-area method; minimum observed, 24 

second -feet 'Dec., 17, 31, 1928.

Remarks . - Records fair. Gage read once daily. Figures given herein include Springdale 

Canal which diverts water in NW^NWi sec. 22, T. 41 S., R. 10 W. , for irrigation in 

vicinity of Springdale. Flow may be slightly affected by small diversions above 

station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

42 

44 

43 

48 

48

45 

43 

44 

44 

42

42 

43 

44 

44 

44

45 

45 

49 

52 

52

50 

48 

48 

48 

47

47 

47 

53 

50 

115 

51

Nov.

48 

46 

44 

43 

40

39 

39 

39 

38 

38

37 

38 

42 

44 

42

40 

39 

39 

35 

38

38 

38 

39 

38

40

37 

32 

31

33 

31

Dec.

30 

36 

36 

40 

30

32 

34 

36 

38

40

42 

42 

42 

42 

42

42 

42 

44 

42 

42

42 

42 

44 

42 

42

42 

50 

44 

44 

44 

42

Jan.

40 

46 

44 

36 

b40

44 

44 

44 

44 

44

48 

50 

54 

52 

50

48 

44 

44 

44 

44

50 

54 

52 

52 

48

50 

48 

44 

40 

42 

44

Feb.

46 

48 

48 

50 

50

52 

52 

52 

50 

50

52 

52 

54 

54

50

50 

54 

58

60 

70

70 

68 

70 

70 

72

62 

66 

72

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

mber. ............................. .....

lendar year 1948 

ary .

h. ......................................

1.......................................

ter year 1948- 49 .......................

Mar.

52 

62 

58 

61 

81

52 

59 67' 

50 

59

59 

55 

56 

59 

59

62 

64 

67 

70 

91

68 

98 

105 

75 

48

57 

57 

67 

62 

52 

61

Apr.

88 

54 

59 

61 

72

84 

93 

109 

104 

113

115 

150 

166 

176 

184

225 

244 

267 

301 

341

384 

495 

597 

615 

502

475 

548 

687 

520 

506

Secondfoot-days

1,505 

1,163 

1,252

27,049

1,426 

1,598 

1,993 

8,235 

12,161 

5,238 

1,780 

1,350 

1,586

39,287

May

476 

479 

553 

486 

392

352 

338 

426 

426 

411

338 

299 

311 

324 

311

338 

655 

636 

493 

581

528 

412 

366 

352 

311

299 

286 

263 

251 

239 

229

Maximum

115 

46

50

487

54 

72 

105 

615 

655 

488 

79 

48 

213

655

Peak discharge (base, 800 sec. -ft.).- Apr. 27 or 28 (time unknown]

June

218 

188 

208 

321 

346

464 

488 

291 

272 

216

197 

177 

160 

142 

133

119 

116 

113 

112

104

102 

96 

89 

94 

88

85 

80 

76 

71 

72

Minimum

July

42 

31 

30

30

36 

46 

48 

54 

229 

71 

44 

40 

41

30

1,000 sec

69 

68 

79 

76 

76

67 

56 

47 

63 

63

62 

59 

59 

63 

61

58 

58 

55 

54 

51

51 

52 

48 

51 

51

49 

49 

49 

47 

45 

44

Aug.

45 

44 

46 

48 

44

43 

44 

46 

46 

46

43 

42 

42 

40 

40

40 

40 

42 

42 

40

40 

43 

48 

48 

46

44 

43 

44 

44 

44 

343

Sept.

44 

42 

41 

42 

42

42 

42 

79 

213 

67

49 

48 

52 

47 

49

49 

44 

44 

42 

42

42 

42 

42 

44 

44

49 

47 

55 

52 

49

if.an Runoff In "ean acre-feet

48.5 2,990 

38.8 2,310 

40.4 2,480

73.9 53,650

46.0 2,830 

57.1 3,170 

64.3 3,950 

274 16,330 

392 24,120 

175 10,390 

57.4 3,530 

43.5 2,680 

52.9 3,150

108 77,930

.-ft.; May 17 or 18

sec.-ft.

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by ice.
VIRGIN RIVER BASIN 

Santa Clara River near Central, Utah

353

Location.- Water-stage recorder, lat. 37°24', long. 113°37', in SE£ sec. 11, T. 39 S., 

K. 16 W., 150 feet upstream from road bridge, 1 mile southeast of Central, and 

lj miles upstream from Kane Spring Draw. Prior to Apr. 9, 1949, at datum 1.00 foot 

higher.

Drainage area.- 97 square miles.

Records available.- April 1909 to September 1930, November 1938 to September 1949.

Average discharge.- 32 years (1909-30, 1939-49), 19.4 second-feet.

Extremes.- Maximum discharge during year, 132 second-feet Apr. 14 (gage height, 2.75 

reetj; minimum, 4.9 second-feet Dec. 5.

1909-30, 1938-49: Maximum discharge, 1,450 second-feet Oct. 6, 1916 (gage height, 

5.0 feet, from floodmarks, site and datum then in use), from rating curve extended 

above 200 second-feet; minimum daily, 2 second-feet on many days in 1939, 1940, 1941.

Revisions.- The maximum discharge for water year 1946 has been revised to 56 second-reet Oct. 9 (gage height, 1.30 i'eet), superseding figure published in WaterSupply Paper 1C59.

Remarks.- Records good. Many diversions above and below station for irrigation. Some 

water is diverted from Grass Valley to Pinto Creek for irrigation in Escalante Valley 

in Great Basin.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

30

31 

23 

23 

34 

25

26 

27 

28 

29 

30 

31

Oct.

5.6 

5.6 

5.9 

6.4 

6.4

6.4 

6.2 

6.4 

6.4 

6.4

5.9 

5.8 

5.8 

5.8 

5.6

5.9 

6.1 

6.2 

6.8 

6.6

6.4 

6.4 

6.4 

6.4 

6.6

6.6 

6.4 

6.2 

6.4 

7.5 

7.5

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mjkv

June 

July 

Augu 

Sept

Wa

Nov.

7.7 

7.1 

7.1 

7.1 

7.1

7.1 

6.9 

6.4 

6.4 

6.4

6.4 

6.4 

6.4 

6.2 

6.2

6.2 

6.2 

6.4 

6.4 

6.2

6.4 

6.2 

6.2 

6.2 

6.2

6.2 

5.3 

5.8 

5.8 

5.6

Dec.

6.1

5.8 

6.1 

6.1 

5.3

6.2

5.8 

5.9 

5.8 

5.9

5.9 

5.9 

5.9 

5.9 

5.9

5.8 

5.8 

5.8 

5.6 

6.6

7.7 

7.1 

7.1 

6.6 

6.4

6.8 

6.8 

6.8 

6.6 

6.8 

6.8

Month

Jan.

6.8 

6.9 

6.1 

6.2 

6.4

7.5 

8.1 

8.8 

8.8 

9.0

9.0 

9.0 

9.2 

9.2 

9.2

9.0

e.e

9.0 

8.8 

8.8

9.0

8.8 

8.1 

8.1 

8.3

8.3 

8.3 

8.3 

8.1 

7.9 

7.9

Feb.

.9 

.9 

.9

.7 

.7

.9 

.9 

.9

8.1 

8.1

8.1 

8.1 

8.1 

8.3 

8.1

8.1 

8.3 

8.3 

8.5 

9.0

9.2 

9.2

10 

10 

11

10 

10 

10

lendar year 1948 

ary

1.......................................

ter year 1948-49 .......................

Peak discharge (base, 60 sec. -ft. .- Apr.

Mar.

9.2 

9.5 

9.2 

9.5 

10

9.8 

10 

9.8 

9.5 

9.5

9.5

8.8 

6.9 

7.7 

8.5

10 

11 

14 

20 

21

16

15 

14 

10 

7.5

7.3 

7.9 

9.0 

7.9 

7.5 

7.3

Apr.

7.7 

7.9 

8.3 

11 

12

14 

15 

27 

29 

30

31 

39 

43 

52 

55

52 

51 

47 

44 

41

46

52 

58 

62 

58

51 

55 

60 

56 

51

Seeondfoot-days

195.0 

192.2 

193.6

4,621.8

" 255.7 

241.3 

322.8 

1,167.9 

1,628 

1,309 

630 

358.2 

277.8

6,771.5

May

46

52 

55 

52 

41

33 

31 

33 

42 

37

35 

32 

32 

39 

39

33 

38 

97 

81 

73

63 

60 

60 

62 

69

72 

70 

72 

65 

61 

53

Maximum

7.5 

7.7 

7.7

58

*~ 9.2 

11 

21 

62 

97 

72 

31 

14 

11

97

14 (10:30 p.m.) 132 sec.

June

48 

40 

42 

43 

44

60 

56 

54 

54 

52

72 

72 

66 

58 

54

46 

46 

48 

42 

37

30 

27 

24 

24 

23

25 

28 

28 

33 

33

Minimum

July

27 

27 

31 

28 

26

24 

23 

22 

21 

21

25 

31 

28 

22 

21

20 

18 

18 

16 

16

16 

16 

16 

16

16

15 

15 

15 

14 

13 

13

5.6

5.3 

5.3

4.9

6.1 

7.7 

6.9 

7.7 

31 

23 

13 

(9.1 

8.1

5.3

Aug.

14

13 

13 

14 

13

13 

13 

13 

13 

12

12 

12 

12 

12 

12

11

11 

11 

11 

11

11 

11 

12 

11 

11

9.9 

9.6 

9.1 

9.4 

9.1 

9.1

Mean

6.29 

6.41 

6.25

12.6

8.25 

8.62 

10.4 

38.9 

52.5 

43.6 

20.3 

11.6 

9.26

18.6

Sept.

8.9 

9.1 

9.1 

8.6 

9.1

8.6 

8.1 

8.6 

11 

9.4

8.9 

8.9 

11 

9.9 

9.1

9.4 

9.6 

9.4

8.9 

8.9

9.4 

8.9 

9.4 

9.4 

9.4

9.1 

9.6 

9.9 

9.1 

9.1

Runoff in 

acre-feet

387 

381 

384

9,170

507 

479 

640 

2,320 

3,230 

2,600 

1,250 

710 

551

13,440

-ft.; May 18 (5:30 p.m.) 112
354 VIRGIN RIVER BASIN 

Santa Clara River above Winsor Dam, near Santa Clara, Utah

Location.- Water-stage recorder, lat. 37°13', long. 113°47', near center of sec. 17, T. 

41 S., R. 17 W., 2 miles upstream from Winsor Dam, 2j miles downstream from Sandy Wash, 

8 miles downstream from Magotsu Creek, and 9 miles northwest of Santa Clara.

Drainage area.- 338 square miles.

Records available.- March 1942 to September 1949.

Extremes.- Maximum discharge during year, 364 second-feet Sept. 9 (gage height, 3.65 feet), 

minimum, 4.7 second-feet Feb. 6.

1942-49: Maximum discharge, 2,400 se?ond-feet Aug. 9, 1942, from rating curve extended above 200 second-feet by logarithmic plotting; maximum gage height, 6.50 feet 

July 31, 1945; minimum discharge, 3.1 second-feet Sept. 25, 1946.

Remarks.- Records good except those for periods of doubtful or no gage-height record,

which are fair. Many diversions above station for irrigation. Plow slightly regulated 

by plants of Southern Utah Power Co.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

alO 

alO 

alO

all 

12

12 

12 

12 

11 

9.9

10 

10 

9.6 

11 

13

11 

10

12 

12 

11

11 

11

11 

12 

12

12 

12 

11 

12 

14 

12

Nov.

12 

15 

16 

15 

15

15

15 

15 

15 

15

15 

15 

15 

13 

13

15 

15 

13 

14 

16

19 

16 

15 

15 

15

15

12 

12 

14

14

Dec,

14 

15 

15

14 

14

15 

17 

18 

16

17

16 

16 

16 

16 

15

14 

15

13 

12 

12

14 

15 

15 

12 

14

16 

19 

18 

16 

15 

16

Jan.

16 

16 

11 

11 

13

15 

16 

15 

10 

9.6

10 

12 

15 

17 

15

12 

12 

14 

13 

19

15 

16 

15 

15 

11

13 

14 

16 

17

19 

15

Feb.

15 

13 

13 

14 

10

8.9 

11 

13 

12 

12

13 

15 

14 

12 

12

13 

17 

19 

18 

18

18 

19 

23 

32 

35

37 

40 

34

Month

00 to 

Kove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ember. ..................................

ter year 194-8-49 .......................

Mar.

26 

28 

31 

43 

48

43 

46 

36

42 

47

51 

38 

47 

52 

58

62 

67 

63 

67 

88

66 

61 

54

51 

46

44 

42 

48

44 

42 

42

Apr.

4E 

46 

49 

58 

74

73 

62 

96 

101 

88

79 

79 

76 

64 

f77

f64 

f66 

a60 

a54 

a49

a43 

44 

46 

57 

52

46 

40 

48 

48 

40

Secondfoot-days

349.5 

439 

470

6,339.8

437.6 

510.9 

1,525 

1,821 

1,658 

1,309 

751 

537 

551

10,359.0

May

36 

32 

36 

42 

40

33 

33 

34

33 

32

33 

33 

29 

31 

38

36 

42 

115 

137 

110

91 

70 

64 

59 

62

66 

66 

64 

a58 

53 

50

Maximum

14 

19 

19

56

19 

40 

88 

101 

137 

76 

38 

19 

60

137

June

a45 

a42 

a40 

a4Z 

a43

a47 

360 

a56 

a56 

a56

a64 

a76 

374 

363 

356

350 

344 

345 

348 

340

335 

330 

325 

321 

19

22 

24 

28 

30 

28

July

29 

28 

30 

38 

33

31 

30 

31 

29 

29

30 

29 

27 

22 

24

25 

24 

22 

21 

20

18 

18 

17 

17 

18

18 

18 

18 

19 

19 

19

Minimum

9.6 

12 

12

8.8

9.6 

8.9 

28 

40 

29 

19 

17 

15 

15

8.9

Aug.

19 

19 

18 

18 

17

16

17 

17 

16 

18

18 

18 

18

17 

17

17 

17

17 

17 

16

16 

18 

18 

18 

18

17 

16 

15

17 

18 

17

Mean

11.3 

14.6 

15.2

17.3

14.1 

18.2 

49.2 

60.7 

53.5 

43.6 

24.2 

17.3 

18.4

28.4

Sept.

17 

17 

17 

15 

15

15 

15 

15 

60 

325

d22 

d!9 

d!7 

d!8 

d!8

d!7 

d!8 

d!7 

d!6 

d!6

d!6 die

d!7 die 

die

die die die

d!7

die

Runoff In 

acre-feet

693 

871 

932

12,580

868 

1,010 

3,020 

3,610 

3,290 

2,600 

1,490 

1,070 

1,090

20,540

Peak discharge (base, 500 see.-ft.).- Sept. 9 (7 a.m.) 364 sec.-ft. 

a No gage-height record; discharge computed on basis of 2 discharge measurements and records for 

station near Central.

d Doubtful gage-height, record; discharge computed on basis of records for station near Central, 

f Computed on basis of partly estimated gage-height record.
VIRGIN RIVER BASIN 355

Muddy River near Overton, Nev.

Location.- Water-stage recorder, lat. 36°38', lT>ng. 114°30', in NW^NE^ see. 21, T. 15 S., 

K. bY E., at Wells Siding diversion dam, 2 miles northwest of Logandale, 5 miles downstream from Meadow Valley Wash, 65 miles northwest of Overton, and 7j miles southeast 

of Moapa. Control for station is crest of Wells Siding diversion dam. Datum of gage 

is 1,432.46 feet above mean sea level, datum of 1929, Bureau of Reclamation bench mark.

Drainage area.- 8,180 square miles, much of which is noncontributing.

Records available.- December 1947 to September 1949. May 1913 to September 1916 at site 

15 miles downstream, a quarter of a mile above mouth.

Extremes.- Maximum daily discharge during year, 36 second-feet Feb. 5, 9-11; no flow for 

many days.

1947-49: Maximum daily discharge, 71 second-feet Feb. 29, 1948; no flow on'many 

days .

Highest floods known, Mar. 3, 1938, Aug. 11, 1941 (discharge, 10,000 second-feet, 

estimated).

Remarks.- Records fair. Record shows flow below Wells Siding diversion dam and does not 

include water diverted at dam for irrigation or for storage in Bowman Reservoir. Flow 

in canals diverting at dam was measured as follows: East Canal Mar. 31, 12.1 secondfeet; June 30, 12.7 second-feet; West Canal Mar. 31, 27.5 second-feet; June 30, 26.1 

second-feet; Bowman Canal Dec. 31, 0.46 second-feet; Mar. 31, 8.55 second-feet; May 4, 

0.18 second-feet. Diversions above station for irrigation.

Discharge, In second-feet, water year October 194& to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

K 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0

o

0 

0

o

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

1

Nov.

5 

7 

9 

11 

12

11 

13 

15 

15 

12

11 

11 

12 

13 

12

12 

13 

12 

12 

13

14 

13 

13 

13

12

12 

12 

14 

14 

15

Dec.

14

15 

16 

18 

19

18 

19 

19 

21 

22

26 

27 

27 

28 

30

32

30 

27 

26 

26

28 

27 

28 

28 

30

33 

33 

33 

30 

29 

29

Jan.

28 

27 

26 

25 

25

25 

26 

26 

26 

26

26 

27 

28 

30 

31

32 

32 

32 

34 

35

35 

35 

35 

34 

33

35 

35 

35 

34 

34 

35

Feb.

35 

35 

35 

35 

36

35 

35 

35 

36 

36

36 

35 

34 

33 

31

32 

32 

28 

24 

22

21

19 

15 

15 

15

17 

23 

33

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

M»v

June 

July 

Augu 

Sept

Ha

ber............ .........................

lendar year 1945

ter year 1948-49.. ......................

Mar.

30 

28 

25 

24

21

22 

24 

24 

19 

12

12 

14 

14 

12 

8

9 

8 

7

6 

8

9

10 

3 

1 

2

3 

2 

2 

2

2

Apr.

3 

3 

6 

3 

3

3 

2 

2

3 

4

3

2 

2 

1

1

1 

1

1 

1

1

1 

1 

1 

1 

1

1

O

0 

0 

0

Secondfoot-days

1 

363 

788

3,630

947 

S18 

365 

5?

0 

0

0 

0 

0

3,334

May

Maximum

1

15 

33

71

35 

36

30 

6 

0 

0

o 

o

0

36

June July

Minimum

O 

5 

14

0

25 

15 

1 

0

0 

0 

0 

0 

0

o

Aug.

Mean

0.03 

12.1 

25.4

9.9

30.5 

29.2 

11.8 

1.7 

0 

0 

0 

0 

0

9.1

Sept.

Runoff In 

aore-feet

2.0

720 

1,560

7,200

1,880 

1,620 

724 

103 

0 

0 

0 

0 

0

6,610
356 VIRGIN RIVER BASIN

Meadow Valley Wash near Panaca, Nevada

Location.- Water-stage recorder, lat. 37 0 52', long. 114°19', In sec. 13, T. IS., R. 68 

E., 200 feet downstream from road bridge at Delmues Ranch, 6 miles northeast of Panaca, 

and 9 miles southeast of Ploche.

Drainage area.- 450 square miles.

Records available.- November 1944 to September 1949.

Extremes.- Maximum discharge during year, 43 second-feet Mar. 20 (gage height, 1.61 feet), 

rrom rating curve extended above 18 second-feet; minimum dally discharge, 0.2 secondfoot Oct. 1-7,.Aug. 20, 21.

1944-49: Maximum discharge, 946 second-feet Aug. 5, 1946 (gage height, 4.40 feet), 

from rating curve extended above 33 second-feet on basis of two slope-area measurements; 

minimum daily, 0.1 second-foot July 4, 1945, May 13, Aug. 10, Sept. 23-30, 1946.

Remarks.- Records fair except those above 18 second-feet, which are poor. Diversions 

above station for irrigation.

Revisions.- W 1089: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.5 

.5 

.6 

.7 

.7

Nov.

0.7

.7 

.7 

.7 

.7

.7 

1.0 

1.1 

1.2 

1.2

1.7

1*7 

1.6 

1.6 

1.2

1.0 

1.2 

.9 

.9 

1.2

2.0 

2.2 

4.2 

3.5 

2.0

1.4 

1.4 

1.9 

2.0 

2.5

Dec.

2.8 

2.5 

3.3 

3.5 

2.0

1.7 

2.0 

2.3 

2.2 

2.8

3.7 4.2' 

4.2- 

4.4 

3.3

4.0 

4.9 

3.0 

2.5 

2.3

3.7 

4.9 

3.5 

2.5 

1.7

2.3 

3.0 

3.7 

3.0 

2.8 

3.3

Jan.

4.0 

4.0 

2.8 

1.7 

2.0

1.7 

1.7 

1.7 

1.7 

1.9

1.9 

2.0 

2.0 

2.0 

2.3

2.8 

2.2 

2.0 

2.0 

2.2

2.2 

2.3 

2.5 

2.6 

2.8

2.8 

2.6 

2.8 

2.8 

2.6 

2.6

Feb.

2.6 

2.6 

2.6 

2.6 

2.8

3.0 

3.0 

2.8 

3.0 

3.3

3.3 

3.3 

3.5 

3.7 

3.7

3.7 

4.0 

4.2 

4.6 

4.9

5.4 

6.8 

7:8 

9.4

11

12 

12 

13

Month

Octo 

Hove 

Dece

Ca

Janu. 

Pebn 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1948 

Eii*y

ter year 1948-49 ...............

Mar.

14 

14

15 

17 

19

19 

19 

19 

19 

25

26 

23 

24 

25 

29

35 

39 

39 

37 

39

35 

20 

16 

14 

15

16 

15 

13 

5.8 

8.5 

8.5

Apr.

7.5 

8.2 

7.1 

5.4 

4.6

4.0 

3.5 

3.3 

2.5 

2.2

1.2 

.7 

.6 

.6 

.5

.4 

.4 

.4 

.4

.4-

.5 

.5 

.5 

.5 

.5

.7 

.7 

.6 

.6 

.6

Secondfoot-days

11.0 

44.8 

96.0

1,317.6

73.2 

144.6 

662.8 

59.6 

48.2 

18.7 

13.6 

12.9 

12.9

1,198.3

May

'0.6 

.6 

.6 

.6 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.6 

.7

.7 

.8 

3.0 

7.5 

10

7.1 

3.0 

.7 

.6 

.6

.7 

.7

.7 

.7 

.7 

.7

Maximum

0'.7 

4.2 

4.9

48

4.0 

13 

39 

8.2 

10 

.9 

.7 

.6 

.6

39

June

0.7 

.6 

.7 

.7 

.9

.8 

.8 

.9 

.8

.7

.7 

.7 

.6 

.5

.5

.6 

.5 

.5 

.5 

.5

.5 

.5 

.6 

.6 

.6

.6 

.6 

.5 

.5 

.5

Minimum

July

0'.2 

.7 

1.7

.2

1.7 

2.6 

5.8 

.4 

.6 

.5 

.3 

.2 

.3

.2

0.5 

.5 

.5 

.6 

.6

.4

.3 

.3 

.3 

.4

.4 

.4 

.4 

.3

.3

.3 

.3 

.4 

.4 

.4

.4 

.3

.3 

.4

.6

.6 

.5 

.6 

.7 

.6 

.6

Aug.

0.6 

.6 

...4 

.4 

.4

.4 

.4 

.5 

.4 

.4

.4

.4 

.4 

.4 

.4

.4. 

.4 

.4

.3 

.2

.2 

.3 

.6 

.4 

.4

.4 

.4

.5 

.5 

.5 

.5

Mean

0.35 

1.49 

3.10

3.60

2

2.36 

5.16 

1.4 

1.99 

1.55 

.62 

.44 

.42

3.26

Sept.

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.6 

.6

.6 

.5 

.4 

.4 

.4

.4 

.4

.4 

.3 

.3

.3 

.3 

.3 

.3 

.4

.4 

.4 

.4 

.4 

.4

Runoff in 

acre-feet

22 

89 

190

2,610

145 

287 

1,310 

118 

96 

37 

27 

26 

26

2,370

Peak discharge (base. 100 sec.-ft).- Ho peak above baae.
BILL WILLIAMS RIVER BASIN 

Bill Williams River near Alamo, Ariz.

357

Location.- Water-stage recorder, lat. 34°14', long. 113°35', in SW£NW£ sec. 2, T. 10 N., 

h. is W., 1.5 miles downstream from Alamo, 2.0 miles downstream from mouth of Bullard 

Wash, and 6 miles downstream from confluence of Santa Maria and Big Sandy Rivers. Datum of gage is 1,002.95 feet above mean sea level, datura of 1929.

Drainage area.- 4,730 square miles, of which 400 square miles is below confluence of Santa 

nana ana Big Sandy Rivers.

Records available.- December 1939 to September 1949.

Extremes.- Maximum discharge during year, 2,900 second-feet Feb. 25 (gage height, 7.35 

reec); minimum daily, 4.5 second-feet Sept. 11, 12.

1940-49: Maximum discharge, 38,200 second-feet Mar. 14, 1941 (gage height, 23.0 

feet); minimum, 3 second-feet Aug. 21, 1942, on several days in May and July 1943, and 

on July 24, 1946.

Flood of Sept. 6, 1939, reached a stage of 39.6 feet, from floodmarks (discharge, 

77,000 second-feet, from slope-area determination made just below confluence of Santa 

Maria and Big Sandy Rivers). Floodmarks indicate a previous stage of about 46 feet.

Remarks.- Records good except those above 20 second-feet, which are fair, and those for 

periods of fragmentary or no gage-height record, which are poor. Diversions above 

station for irrigation. At low stages some ground-water inflow occurs below station 

as shown by the following measurements made Sept. i& at gage, 6.17 second-feet; 

500 feet downstream, 6.74 second-feet; 800 feet downstream, 6.98 second-feet; 1,250 

feet downstream, 7.14 second-feet.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.8 

6.8 

6.8 

6.8 

7.0

7.0 

7.0 

7.0 

7.2 

7.2

7.2 

7.2 

7.2 

7.2 

7.0

7.2 

7.4 

7.4 

7.4 

7.4

7.7 

7.7 

7.7 

7.7 

7.7

7.9 

7.9 

7.9 

7.9 

7.9 

7.9

Nov.

7.9 

7.9 

8.1 

7.9 

7.9

8.1 

8.1 

8.4 

8.4 

8.4

8.6 

8.6 

8.9 

8.9 

9.2

9.2 

9.2 

9.4 

9.4 

9.4

9.4 

9.4 

9.7 

9.7 

9.7

9.7 

9.4 

9.7 

9.7 

9.7

Dec.

9.4 

9.4 

9.4 

9.4 

9.4

9.4 

9.4 

9.4 

9.4 

9.4

9.2 

9.2 

9.2 

9.2 

9.4

9.4 

9.4 

9.4 

9.4 

9.2

9.2 

9.2 

9.4 

30 

30

14 

15 

23 

55 

20 

19

Jan.

15 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

15 

590 

262

158 

63 

30 

20 

19

18 

16 

16 

77 

340

869 

293 

146 

101 

f90 

f72

Feb.

55 

53 

48 

39 

37

35 

27 

18

14 

14

14 

14 

85 

101 

94

75 

58 

51 

432 

720

1,010 

870 

1,180 

1,460 

2,090

1,780 

1,260 

1,160

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948

u&ry ... ...... ..... ...

ter year 1948-49 .......................

Peak discharge (base, 800 sec. -ft.).- Jan.

Mar.

980 

726 

600 

719 

754

738 

624 

525 

440 

335

335 

371 

332 

293 

256

231 

213 

192 

172 

147

131 

123 

110 

99 

92

82 

75 

68 

63 

57 

57

Apr.

63 

63 

57 

52 

52

68 

75 

66 

55 

46

40 

38 

34 

32 

28

26 

26 

25 

25 

23

21 

19 

19 

18 

16

16 

14 

14

14 

12

Secondfoot-days

£28.1 

268.0 

420.8

3,933.5

3,364 

12,794 

9,940 

1,057 

314.0 

220.2 

158.4 

203.8 

178.9

29,147.2

14 (9 a.m.)

May

12 

12 

12 

12 

11

10 

10 

10 

10 

10

10 

10 

10 

10 

10

10

11 11

10 

10

10 

9.6 

9.6 

9.6 

9.6

9.1 

9.1 

9.1 

9.1 

9.1 

9.1

Maximum

7.9 

9.7 

55

367

869 

2,090 

980 

75 

12 

9.1 

5.4 

7.5 

22

2,090

June

9.1 

9.1 

9.1 

9.1 

9.1

9.1 

9.1 

9.1 

9.1 

8.6

8.0 

8.0 

7.5 

7.0 

7.0

7.0 

7.0 

7.0 

7.0 

6.5

-6.5 

6.5 

5.9 

5.9 

5.9

5.4 

5.4 

5.4 

5.4 

5.4

July

Minimum

6.8 

7.9 

9.2

5.1

14 

14 

57 

12 

9.1 

5.4 

4.8 

4.8 

4.5

4.5

1,190 sec. -ft. j Jan.

5.1

5.1 

5.1 

5.1 

5.1

5.1 

5.1

5.1 

5.1 

5.1

5.1

5.1 

5.1 

5.1 

5.1

5.4 

5.4 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.1 

4.8

4.8 

4.8 

4.8 

4.8 

4.8 

4.8

Aug.

4.8 

5.1 

5.1 

5.4 

5.9

5.9 

6.5 

6.5 

5.9 

5.9

6.5 

6.5 

6.5 

5.9 

5.9

6.5 

6.5 

7.0 

7.0 

7.0

7.5 

7.5 

7.5 

7.5 

7.5

7.5 

7.5 

7.5 

7.5 

7.0 

7.0

Mean

7.36 

8.93 

13.6

10.8

109 

457 

321 

35.2 

10.1 

7.34 

5.11 

6.57 

5.96

79.9

26 (5 a.m.)

Sept.

6.5 

6.5 

6.5 

5.9 

5.4

5.4 

5.1 

5.1 

5.4 

5.4

4.5 

4.5 

22 

8.6 

5.9

5.4 

5.4 

5.1 

5.1 

5.1

5.1 

a5

a5 

a5 

a5

a5 

a5 

a5 

aS 

a5

Runoff In 

acre-feat

452 

532 

835

7,800

6,670 

25,380 

19,720 

2,100 

623 

437 

314 

404 

355

57,810

1,280 sec.

ft.; Feb.~25 (4f:30 p.m.) 2,900 see.-ft.

a No gage-height record; discharge computed on basis of adjoining good record, weather records, snd 

records for Sants Maria River near Alamo.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
358 BILL WILLIAMS RIVER BASIN

Santa Maria River near Alamo, Ariz.

Location.- Water-stage recorder, 3at. 34°18', long. 113°31', in NE^SWi sec. 9 T. 11 N. 

RT~nr~W., half a mile upstream from confluence with Big Sandy River and 5y miles 

upstream from Alamo. Datum of gage is 1,126.6 feet above mean sea level (from 

river-profile survey).

Drainage area.- 1,520 square miles.

Records available.- December 1939 to September 1949.

Extremes.- Maximum discharge during year, 1,100 second-feet Feb. 25 (gage height, 6.36 

reet); minimum daily, 0.3 second-foot Sept. 9.

1939-49: Maximum discharge,15,000 second-feet Sept. 6 or 7, 1939, Mar. 14, 1941 

(gage height, 9.85 feet), by slope-area method; minimum, less than 1 second-foot 

on many days in most years.

Floodmarks indicate a stage of 12.0 feet occurred probably in 1937 or 1938.

Remarks.- Records fair except those above 20 second-feet and those after Aug. 6, which 

are poor. Several diversions, above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.4 

1.4 

1.4 

1.4

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

.3 

.3 

.4

.4 

.5 

.6 

.7 

.6

.6 

.5

1.5 

1.5 

1.4

1.5 

.4 

.5 

.6 

.6 

.7

Nov.

1.8 

1.9 

1.9 

1.9- 

1.9

1.9 

1.9

1.9 

1.9 

1.9

1.9 

1.9 

1.9 

1.9

1.9

2.0 

2.0 

2.0

2.0 

2.1

2.1 

2.1 

2.2 

2.2 

Z.Z

2.3 

2.3 

2.3 

2.3

2.3

Dec.

2.3 

2.3 

2/3 

2.3 

2.3

Z.3 

2.4 

Z.4 

2.4 

2.4

2.4 

2*4 

2.6 

Z.4 

Z.4

2.4 

2.4 

2.4 

2.4 

2.4

Z.4 

2.4 

2.9 

3.8 

4.4

3.0 

2.9 

3.6 

IE 

5.5 

4.8

Jan.

.6 

.5 '.3 

.2 

,Z

.2 

.2 

.2

.1 

.2

.2

.2 

.6 

Z50 

1Z3

74 

17 

4.7 

3.7 

3.7

3.7 

3.7 

3.0 

66 

261

459 

102 

60 

35

ZO

10

Feb.

7.0 

4.7 

4.7 

4.7 

3.7

3.7 

3.7 

3.7 

3.0 

3.0

3.0 

7.0 

57 

50 

32

18 

8 

18 

139 

215

337 

383 

556 

492 

555

336 

247 

183

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

204 

166 

138 

151

151

158 

138

113 

97 

84

50 

35 

Z7 

ZO 

18

14 

12 

12 

10 

8.3

8.3 

8.3 

8.3 

8.3 

8.3

8.3 

8.3 

.0 

.0 

.0 

.O

Apr.

16 

18 

18 

16 

12

12 

12 

1Z 

10 

7.0

.0 

.0 

.4 

.0 

.8

.8 

.8 

.0 

.0 

.8

.7 

.7 

.7 

.7 

.7

.7 

.7 

.0 

.7 

3.7

Se ondfoo -days

45.4 

60.8 

95.3

1,138.6

1,555.2 

3,677.9 

1,692.4 

237.9 

72.1 

44.2 

27.9 

52.4 

25.4

7,586.9

May

3.0 

3.0 

3.0 

3.0 

3.0

2.4 

2.4 

2.4 

1.9 

1.9

Z.4 

Z.4 

2.4 

1.9 

1.9

2.4 

2.4 

3.7 

2.4 

2.4

1.9 

1.9 

1.9 

2.4 

2.4

1.9 

1.9 

1.6 

1.6 

1.9 

2.4

Maximum

1.7 

2.3 

12

128

459 

556 

204

18 

3.7 

2.4

1.6 

11 

1.3

556

June

1.6 

1.6 

1.6 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

2.4

1.9 

1.9 

1.9 

1.9 

1.3

1.3 

1.6 

1.3 

1.6 

1.3

1.3 

1.3 

1.0 

1.0 

1.0

.8 

.8 

.8 

.8 

.8

July

1.0 

1.0 

1.3 

1.6 

1.6

1.3 

1.0 

1.0 

1.3 

.8

1.0 

1.0 

1.0 

.8 

.7

.7 

.7 

.8 

.7 

.7

.7 

.7 

.7 

.8 

.8

.7

.7 

.7 

.7 

.7 

.7

Minimum

1.3 

1.8

2.3

1.2

3.0 

3.0 

7.0. 

3.0 

1.6 

.8 

.7 

.5 

.3

.3

Aug.

0.7 

.8 

.7 

.6 

.6

.5 

11 

8.3 

3.0

1.9

1.3 

1.3 

1.3 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.3 

1.6 

1.6

1.3 

1.3 

1.3 

1.3 

1.0 

.7

Mean

1.46 

2.03 

3.07

3.11

50. Z 

131 

54.6 

7.93 

2.33 

1.47 

.90 

1.69 

.85

20.8

Sept.

0.6 

.5 

.5 

.4 

.4

.4 

.4 

.4 

.3 

.4

.5 

.5

.6 

1.0 

1.3

1.3

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.0 

.8 

.8

.8

.8 

1.3 

1.3

1.3

Runoff in 

acre-feet

90

121 

189

2,Z60

3,080 

7,300 

3,360 

472 

143 

88 

55 

104 

50

15,050

Peak discharge (base, 250 see.-ft.).- Jan. 14 (5 a.m.) 610 sec.-ft.; Jan.25 (7:30 p.m.) 720 sec.- 

ft.; Feb. 25 (12 m.) 1,100 sec.-ft.

N° te -- River not directly connected to gage except Jan. 14, Z5, 26, Feb. 19 to Mar. 10; discharge 

computed on basis of recorded variation in ground-water level and 18 discharge measurements.
GILA RIVER BASIN 359

Gila River near Gila, N. Hex.

Location.- Water-stage recorder, lat. 33°04'05", long. 108°32'10", in SE^SW^ sec. 19, T. 

14 t>. , R. 16 W. , at Hooker dam site, 1 mile upstream from Mogollon Creek and 7 miles 

northeast of Gila. Datum of gage is 4,655.8 feet above mean sea level (from river T 

profile survey).

Drainage area.- 1,870 square miles.

Records available.- April to December 1914 (at site 5 miles upstream and a quarter of a 

mile downstream from Turkey Creek) and October 1930 to September 1949 in reports of 

Geological Survey. April to December 1914, November 1927 to December 1928 (at site 

5 miles upstream and a quarter of a mile downstream from Turkey Creek), and January 

1929 to December 1931 in reports of State engineer.

Average discharge.- 21 years (1928-49), 138 second-feet.

Extremes.- Maximum discharge during year, 15,000 second-feet Jan. 13 (gage height, 11.09 

reetjy minimum daily, 33 second-feet Oct. 8.

1930-49: Maximun discharge, 25,400 second-feet Sept. 29, 1941 (gage height, 17.2 

feet, from floodmark), from rating curve extended above 1,100 second-feet on basis of 

velocity-area studies and logarithmic plotting; minimum daily, 19 second-feet July 15, 

1948.

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

One small diversion above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

5 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

37 

37 

38 

36 

35

34 

34 

33 

34 

34

34 

34 

34 

36 

38

4O 

39 

39 

44 

48

44 

43 

42 

41 

42

43 

43 

50 

50 

52 

72

Nov.

73

65 

60 

57 

55

55 

57 

57 

55 

54

53 

54 

54 

54 

53

54 

53 

53 

52 

53

53 

53 

54

55 

55

55 

57 

54 

52 

51

Dec.

51

51 

51 

52 

52

52 

53 

53 

53 

53

53 

54 

55 

55 

57

57 

57 

58 

58 

57

57 

59 

93 

256 

223

493 

2,990 

4,280 

1,400 

718 

424

Jan.

332 

282 

250 

202 

160

144 

142 

146 

188 

371

387 

537 

4,950 

6,920 

2,780

1,480 

885 

629 

535 

479

434

388 

378 

700 

835

360 

688 

531 

430 

338 

302

Feb.

287 

269 

259 

246 

228

214 

205 

196 

192 

186

178 

224 

341 

424 

341

290 

287 

347 

424 

452

487 

547 

710 

1,090 

1,310

1,250 

1,090 

940

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 600 sec. -ft.).- Dec.

Mar.

835 

710 

688 

760 

970

1,150 

1,830 

4,880 

2,550 

1,520

1,180 

1,060 

940 

860 

835

810 

810 

785 

760 

735

735 

656 

598 

551

507

479 

430 

388 

371 

371 

344

Apr.

344 

354 

335 

347 

347

368 

406 

430 

452 

475

441 

420 

42O 

430 

471

495 

491 

475 

463 

441

424 

402 

406 

420 

430

438 

479 

459 

452 

438

Secondfoot-days

1,260 

1,660 

12,075

43,407

27,683 

13,014 

30,098 

12,753 

8,032 

3,180 

2,899 

2,866 

4,689

120,209

28 (12:45 p

15,000 sec. -ft.; Jan. 25 (11 p.m.) 940 sec. -ft.; Feb. 26

May

427 

382 

354 

360 

357

332 

3O2 

277 

259

251

274 

305 

326 

299 

277

277 

264 

236 

212 

199

186 

182 

176 

174 

176

182 

201 

212 

205 

190 

178

Maximum

72 

73 

4,280

4,280

6,920 

1,310 

4,880 

495 

427 

167 

184 

198 

678

6,920

June

167 

161

150 

a!40

a!30

123

122 

117 

115 

117

110 

120 

120 

110 

103

148

128 

104 

90 

89

85 

a83 

85 

79 

71

68 

65 

62 

61 

61

July

61

75 

a70 

a64 

a64

a54 

a50 

51 

63 

70

65 

66 

65 

90 

71

91 

92 

89 

89 

82

87 

114 

143 

178 

184

167 

145 

115 

98 

126 

120

Aug.

97 

156 

158 

131 

168

127 

102 

172 

198 

170

151 

121 

104 

90

78

71 

64 

65 

63 

57

52 

50 

51 

48 

44

51 

52 

48 

44 

42 

41

Minimum Mean

33 40.6 

51 55.3 

51 390

19 119

142 893 1 

178 465 

344 971 

335 425 

174 259 

61 106 

50 93.5 

41 92.5 

42 156

33 329

Sept.

42 

75 

75 

76 

69

68 

65 

90 

a200 

a!70

alSO 

a!50 

a250 

aSOO 

678

395 

260 

189 

150 

131

147 

108 

93 

87 

83

80 

76 

72 

68 

66

Runoff In 

acre-feet

2,500 

3,290 

13., 950

86,100

54,910 

25,810 

59,700 

25,300 

15,930 

6,310 

5,750 

5,680 

9,300

238,400

.m.) 7,850 sec. -ft.; Jan. 13 (11:30 p.m.) 

(3 p.m.) 1,440 sec. -ft.; Mar. 8 (6 a.m.)

5,980 sec. -ft.; Sept. 15 (6:30-a.m.) 1,020 sec. -ft.

a No gage-height record; discharge computed on basis 

in stage, discharge measurements, weather records, and

of available recorder trace, recorde^ range 

records for Qila River stations downstream.

939921 O- 51 - 24
360 GILA RIVER BASIN

Gila River near Cliff, N. Mex.

Location.- Water-stage recorder, lat. 32°56'20", long. 108°36'20", in S| sec. 4, T. 16 

S., K. 17 W., on U. S. Highway 260, Ij- miles downstream from Bear Creek, ij miles 

south of Cliff, 2j miles southwest of Gila and 6f miles upstream from Mangas Creek. 

Datum of gage is 4,454.5 feet above mean sea level, datum of 1929.

Records available.- January 1942 to September 1949. September 1904 to December 1907

at site 6f miles downstream, below Mangas Creek (gage heights only prior to May 22,

1905, and during 1907).

Extremes.- Maximum discharge during year, 17,200 second-feet Jan. 14 (gage height, 12.6 

feet), by slope-area method; minimum daily discharge, 16Tsecond-feet Oct. 17.

1942-49: Maximum discharge, that of Jan. 14, 1949; minimum daily, 5.8 second-feet 

July 2, 7, 1946, Aug. 8, 1947.

Maximum stage known, 14.0 feet Sept. 29, 1941.

Remarks.- Records good. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

38

38 

37 

31 

29

28 

29 

28 

27 

28

30 

24, 

18 

17 

18

19 

16 

20 

35 

43

37 

32 

_30 

28 

28

27 

29 

36 

37 

44 

96

Nov.

84

76 

70 

67 

64

62 

60 

56 

57 

59

59 

62 

57 

57 

55

52 

50 

51 

50 

50

52

48 

48 

48 

51

48 

48 

47 

46 

47

Dec.

52 

52 

48 

51 

55

55 

55 

57 

57 

56

55 

55 

52 

55 

53

51 

52 

52 

56 

55

53 

53 

124 

314 

278

488 

2,380 

5,900 

1,280 

800 

578

Jan.

496 

433 

377 

296 

244

221 

214 

211 

277 

520

512

614 

4,710 

10,900 

3,270

1,860 

1,210 

945 

795 

680

612 

545 

618 

1,100 

1,280

1,380 

1,120 

845 

680 

545 

453

Feb.

417 

389 

363 

338 

J320

313 

293 

274 

261 

243

229 

252 

397 

545 

485

437 

445 

505 

612 

658

702 

770 

945 

1,240 

1,460

1,420 

1,280 

1,120'

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

h. ......................................

ter year 1948-49 .......................

Mar.

1,000 

845 

795 

870 

1,090

1,350 

1,950 

6,120 

2,940 

1,820

1,460 

1,320 

1,180 

1,060 

1,000

970 

970 

970 

920 

895

920 

820 

702 

635 

568

537 

497 

465 

457 

449 

425

Apr.

425 

425 

417 

429 

441

465 

509 

545 

568 

590

568 

590 

590 

612 

658

702 

702 

680 

658 

612

590 

590 

568 

590 

612

612 

612 

612 

590 

590

Secondfoot-days

977 

1,681 

13,322

44,735

33,963 

16,713 

36,000 

17,152 

9,324 

3,068 

3,225 

2,680 

64S25

148,430

May

568 

517 

481 

461 

449

413 

378 

344 

316 

300

300 

320 

320 

310 

300

293 

283 

271 

252 

229

215 

212 

190 

178 

183

193 

204 

240 

217 

204 

183

Maximum

96 

84 

5,900

5,900

10,900 

1,460 

6,120 

702 

568 

173 

209 

312 

920

10,900

June

173 

159 

152 

134 

124

116 

107 

101 

105 

103

98 

100 

-101 

91 

85

94 

111 

101 

94 

92

96 

100 

103 

94 

87

82 

76 

70 

64 

55

July

50 

50 

55 

53 

52

40 

40 

38 

171 

152

116 

98 

92 

109 

209

114 

118 

114 

105 

91

128 

91 

117 

166 

152

145 

128 

109 

91 

107 

124

Minimum

~16

46 

46

9.0

211 

229 

425 

417 

178 

55 

38 

19 

26

16

Aug.

103 

312 

193 

170 

188

150 

148 

139 

170 

152

143 

114 

107 

101 

79

45

34 

27 

28 

29

24 

24 

26 

23 

22

23 

23 

19 

20 

20 

24

Mean

31.5 

56.0 

430

122

1,225 

597 

1,161 

572 

301 . 

102 

104 

86.5 

211

407

Sept.

26 

50 

104 

77 

68

66 

74 

368 

163 

345

232 

215 

316 

725 

920

537 

359 

264 

212 

186

188 

145 

124 

107 

96

92 

84 

71 

62 

49

Runoff In 

acre-feet

1,940 

3,330 

26,420

88,720

75,300 

53,150 

71,400 

34,020 

18,490 

6,090 

6,400 

5,320 

12,550

|^29j,410

Peak discharge [basfeT«,500 see. -ft.).- Dec. 28 (2 a.m.) 10,000 sec. -ft. 5 Jan. 14 (6 a.m.) 17,200

3,250 sec.-ft.; Sept. 14 (7:10 p.m.) 3,550 sec.-ft.
GILA RIVER BASIN 361

Glla River near Red Rock, N. Mex.

Location.- Water-stage recorder, lat. 32°43'30", long. 108°40<30", in »£ sec. 23, T. 18 S., 

K. IB W., 4 miles northeast of Red Rook and 14 miles downstream from Mangas Creek.

Drainage area.- 2,860 square miles.

Records available.- May 1908 to December 1914 (gage-height record- only, mostly fragmentary, 

nay to octoDer 1908, January 1911 to July 1912) and October 1930 to September 1949 in 

reports of Geological Survey. November 1908 to December 1910 and August 1912 to December 193t in reports of State engineer.

Average discharge.- 31 years (1909-10, 1912-14, 1918-24, 1927-49), 186 second-feet.

Extremes.- Maximum discharge during year, 18,200 second-feet Jan. 14 (gage height, 18.1 

reet); minimum daily, 9.0 second-feet Aug. 20.

1930-49: Maximum discharge, 40,000 second-feet Sept. 29, 1941 (gage height, 31 

feet, from floodmark), computed on basis of known flow for station below Blue Creek; 

minimum daily, 3 second-feet Aug. 2-7, 1947.

Remarks.- Records good except those for Dec. 26 to Jan. 15, which are fair. Diversions 

above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

IS 

17ie

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

43 

45 

44

41n

36

36 

28 

22 

20 

25

22 

3O 

30 

36 

26

27

25 

30 

43 

61

52 

47 

39 

37 

37

37 

39 

44 

48 

52 

123

Hov.

119 

104 

92 

82 

78

72 

73 

68 

71 

74

76 

76 

74 

73 

72

68 

64 

62 

62 

55

54 

53 

62 

64 

64

68 

71 

68 

66 

64

Dec.

64 

68 

64 

62 

64

66 

68 

69 

69 

71

69 

68 

67 

62 

63

64 

64 

64 

66 

68

67 

66 

73 

293 

317

356 

1,380 

6,430 

1,700 

d900 

d600

Jan.

dSOO 

d450 

421 

334 

279

246 

230 

220 

274 

585

530 

512 

3.810 

12,200 

3,220

2,200 

1,500 

1.O6O 

880 

S3O

780 

730 

80S 

1,930 

1,900

1,740 

1,320 

910 

755 

576 

490

Feb.

450 

417 

385 

369 

348

330 

320 

307 

297 

282

267 

304 

558 

940 

655

508 

476 

522 

610 

655

655 

705 

855 

1,280 

1,640

1,64O 

1,450 

1,240

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

mber. ....................................

lender year 1948

ter year 1948-49 .......................

Peak discharge (base, 3,000 see. -ft.-).- De

IB, ZOO seo.-rt.; Jan. 25 (,l:3O!a.m. ) 3»01O a

Mar.

1,100 

910 

830 

880 

1,360

1,360 

1,610 

6,730 

3,600 

2,080

1,590 

1,450 

1,280 

1,130 

1,060

1,030 

1,000 

97O 

94O 

910

940 

805 

755 

680 

630

600 

526 

476 

454 

450 

437

Apr.

437 

445 

421 

425 

429

454 

544 

576 

6OO 

625

615 

605 

610 

625 

680

730 

755 

730 

705 

630

610 

580 

576 

595 

620

620 

630 

655 

655 

630

Secondfoot-days

1,225 

2,149 

13,502

48,978.4

42,219 

18,465 

38,343 

17,812 

10,161 

3,487 

4,400 

3,154 

7,267

162,184

May

610 

553 

499 

490 

490

463 

42£ 

397 

354 

334

334 

362 

358 

351 

348

344 

323 

307 

273 

254

24O 

240 

215 

185 

177

185 

194 

210 

22O 

218 

204

Maximum

123 

119 

6,430

6,43O

12,200 

1,640 

6,73O 

755 

610 

192 

308 

441 

1,530

12,200

June

192 

172 

16O 

148

136

13O

117 

109 

109 

112

1O6 

106 

121 

114 

102

107 

125 

13O 

102 

98

104 

110 

138 

114 

107

94 

86 

81 

80 

77

July

69 

60 

58 

63 

69

55 

47 

47 

96 

308

222 

236 

140 

121 

271

222 

134 

123 

128 

112

96 

169 

130 

246 

220

215 

177 

148 

136 

138 

144

Aug.

132 

441 

265 

181 

197

183 

164 

199 

197 

185

166 

130 

1]0 

99 

90

61 

43 

31 

17 

9.0

12 

15 

18 

20 

21

23 

31 

27 

29 

28 

30

Minimum Mean

2O 39.5 

53 71.6 

62 436

3.9 134

22O 1,362 

267 659 

437 1,237 

421 594 

177 328 

77 116 

47 142 

9.0 1O2 

33 242

9.O 444

Sept.

33 

37 

81 

146 

101

87 

127 

296 

286 

316

23O 

22O 

346 

533 

1,530

615 

369 

282 

228 

194

213 

179 

150 

126 

112

107 

98 

87

74 

64

Runoff In 

acre-feet

2,430 

4,260 

26,780

97,150

83,74O 

36,62O 

76,050 

35,330 

20,150 

6,920 

8,730 

6,26O 

14,410

321,700

3. 28 (9:15 a.m.) 10,200 sec. -ft.; Jan. 14 (6:30 a.m.) 

so. -ft.; Mar. 8 (11:3O a.m.) 8,500 sec. -ft.; Aug. 2

d Doubtful gage-height record; discharge computed from recorder trace and records for stations near 

Cliff and below Blue Creek.
362 GILA RIVER BASIN 

Gila River below Blue .Creek, near Virden, N. Mex.

Location.- Water-stage recorder, lat. 32°39', long. 108°51', In SEcSW^ see. 18, T. 19 

S., H." 19 ¥., at head of canyon, l£ miles downstream from Blue Creek, 10 miles east 

of Virden, and 16 miles upstream from State line. Datum of gage is 3,875 feet above 

mean sea level (from river-profile map).

Drainage area.- 3,220 square miles, excluding Animas River Basin.

Records available.- May 1914 to September 1915, .Tune 1927 to September 1949. January 

19^3 to May 1927 (discharge measurements only) and June 1927 to September 1931 at 

Virden Bridge, 8^ miles downstream.

Average discharge.- 22 years (1927-49), 180 second-feet.

Extremes.- Maximum discharge during year, 15,600 second-feet Jan. 14 (gage height, 17.43 

reet J; minimum, 12 second-feet Aug. 27 to Sept. 2.

1927-49: Maximum discharge, 41,700 second-feet Sept. 29, 1941 (gage height, 25.78 

feet); minimum, 1 second-foot July 14, 1934.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are fair. Some fluctuation at low flow caused by diversions above station for irrigation. Station is above all diversions for Duncan Valley.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39

37 

36 

32 

30

29 

27 

23 

21 

21

19 

21 

19

23

41

22 

22 

24 

31 

41

44 

41 

38 

36 

34

35 

37 

40 

42 

46 

7fl

Nov.

103 

92 

82

76 

70

69 

69 

65 

63 

65

65

66 

69 

66 

66

60 

58 

55 

56 

52

46 

45 

50 

53 

55

56 

55 

58 

58 

53

Dec.

51

56 

56 

56 

56

59 

59

60 

62 

64

64 

f62 

60 

59

60

62 

62 

62 

62 

64

65 

64 

66 

192 

310

283 

1,250 

3,880 

2,680 

1,120 

770

Jan.

575 

470 

405 

350 

291

250 

230 

225 

366

612

575 

575 

1,940 

10,400

5,670

2,620 

1,730 

1,270 

985 

874

811 

832 

949 

1,620 

1,910

1,820 

1,480 

1,080 

853 

670 

557

Feb.

487 

437 

405 

393 

371

350 

335 

321 

310 

302

288 

307 

577 

902

770

594 

522 

539

631 

709

729 

750 

874 

1,170 

1,480

1,590 

1,480

1,320

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 2,100 sec. -ft.).- De

sec. -ft.; Jan. 25 (5:30 a.m.; 2,260 sec. -ft.

Mar.

1,170 

1,050 

918 

896 

1,010

1,270 

1,370 

4,360 

3,840 

2,530

1,940 

1,640 

1,480

1,270 

1,140

1,080 

1,030 

1,030 

965 

925

925 

845 

765 

688 

635

600 

548 

500 

470 

455 

440

Apr.

425 

440 

440 

425 

440

455 

500 

548 

582 

618

618 

600 

618 

635 

670

725 

745 

745 

705 

652

635 

618 

582 

600 

618

600 

600 

618 

618 

600

Secondfoot-days

1,029 

1,896 

11,876

43,577.3

42,995 ' 

18,943 

37,785 

17,675 

9,700 

3,301 

4,927 

3,339 

6,873

160,339

c. 28 (6:30 

; Mar. 8 (6

May

582 

548 

485 

470 

470

440 

410 

396 

354 

328

316 

328

328 

316

316 

303 

289 

269 

241

219

217 

204 

191 

177

177 

181 

193 

206 

214 

204

Maximum

78 

103 

3,880

3,880

10,400 

1,590 

4,360 

745 

582 

191 

699 

427 

1,460

10,400

p.m.) 6,040 

p.m. ) 6,230

June

191 

183 

169 

162 

148

141 

129 

118 

106 

104

102 

100 

99 

97 

90

88 

89 

104 

104 

90

102 

93

106 

106 

97

90 

80 

75 

69 

69

July

69 

64 

58 

57 

58

56 

46 

41 

43 

164

412 

227 

144 

110 

106

279 

166 

f201 

f!43 rios

89 

140 

226 

699 

266

187 

155 

129

118 

122 

234

Minimum

19 

45 

51

2.2

225 ' 

288 

440 

4?5 

177 

69 

41 

12 

12

12

sec. -ft.; 

sec. -ft.;

Aug.

132

263 

f427 

f228 

183

175 

198

317 

189 

183

160 

139 

121 

108

100

81 

68 

52 

38 

24

19 

17 

16 

14

14

13

12 

12 

12 

12

12

Mean

33.2 

63.2 

383

119

1,387 

677 

1,219 

589 

313 

110 

159 

108 

229

439

Jan. 14, Cl 

Tuly llJlO

Sept.

12 

12 

34 

100

113

77 

71 

119 

376 

251

272 

212 

338 

319 

1,460

692 

396 

284 

219 

259

206 

171 

148 

132 

120

112 

102 

88 

97 

fSl

Runoff In 

acre-feet

2,040 

3,760 

23,560

86,430

85,280 

37,570 

74,950 

35,060 

19,240 

6,550 

9,770 

6,620 

13,630

318,000

p.m.) 15,600 

:30 p.m. )

. .. 

2,190 sec.-ft.; Sept. 15 (4:30 a.m.) 3,260 sec.-ft.

f Fragmentary gage-height record; discharge computed from partly or wholly estimated gage heights.
GILA RIVER BASIN

Gila River at New Mexico-Arizona State line, near Virden, N. Mex.

Location.- Water-stage recorder, lat . 32°41'10", long. 109°03'05", in NE^NE-i: sec. 3, T. 9 

 S. , K. 32 E. Gila and Salt River meridian (NE^NW^ sec. 6, T. 19 S., R. 21 W. New Mexico

meridian projected west of State line), 790 feet downstream from State line, and 3 miles

west of Virden.

Drainage area.- 3,360 square miles.

Records available.- May 1939 to March 1949 (discontinued).

Extremes . - Maximum discharge during period of October 1948 to March 1949, 14,800 second - 

feet Jan. 14 (gage height, 10.0 feet); no flow for several days.

1939-49: Maximum discharge, 39,500 second-feet Sept. 29, 1941 (gage height, 13.64 

feet, from floodmarks), from rating curve extended above 2,900 second-feet by comparison 

with peak at station below Blue Creek; no flow at times.

Remarks . - Records good except those for periods of no gage -height record, which are fair. 

Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948- to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

25 

22 

24 

18

11

1.4

.7 

0 

0 

.8

.9 

1.3 

1.6 

1.1 

12

.1 

0 

4.0 

20 

26

28 

19 

17 

14 

14

14 

15

18

17 

21 

57

Nov.

86 

79 

72 

64

56

52 

54 

51 

38 

38

40 

43 

44 

44 

44

45 

44 

37 

33

30

25 

22

23 

24 

26

25 

14

14 

16 

15

Dec.

14 

15 

20 

21 

26

35 

31 

29 

28 

29

30 

28 

26 

21 

20

18 

18 

19 

20 

20

19 

17

16 

78 

240

220 

859 

3,290 

3,490 

1,080 

716

Jan.

570 

478 

420 

390 

350

322

304 

300 

411 

580

585 

556 

1,160 

8,360 

6,020

2,640 

1,790 

1,410 

1,090

916

832 

825

860 

1,410 

1,960

1,900 

1,560 

1,180 

909 

754 

616

Feb.

535 

475 

444 

420 

392

370 

356 

345 

325 

320

310 

314 

452 

839 

748

610 

565 

560 

560 

590

688 

724 

784 

930 

1,360

1,510 

1,360 

1,180

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Tllendar year 1948

e period. . . ...... ......................

Mar.

1,050 

970 

895 

867 

970

1,180 

1,360 

3,550 

4,860 

a2,7OO

gl,900

Apr.

Secondfoot -days

403.9 

1,198 

10,493

36,060.8

r 41,458 

18,066 

20,302

May

Maximum

57 

86 

3,490

3,490

' 8,360 

1,510 

4,860

June July

Minimum

o 

14

14

0

300 

31C 

867

Aug.

Mean

13.0 

39.9 

338

98.5

1,337 

645 

1,846

Sept.

Runoff in 

acre-feet

801 

2,380 

20,810

71,520

82,230 

35,830 

40,270

.

14,800 sec.-ft.; Mar. 8 (11:30 p.m.) 6,230 sec.-ft.

a No gage-height record; discharge computed on basis of recession graph and records for station 

below Blue Creek.

g Computed from graph based on gage readings.
364 GILA RIVER BASIN

Diversions from Gila River in Duncan Valley, N. Mex.-Ariz.

Duncan Valley lies along Gila River in Hidalgo County, N. Hex., and Greenlee County, 

Ariz. The part in New Mexico is also known as Virden Valley. The valley extends from a 

point about 8 miles east of State line to vicinity of Guthrie, Ariz. Nine canals, listed 

in the following table according t;> their position from east to west, and several Dumps 

divert water from Gila River for Irrigation in the valley. The first four canals listed 

divert in New Mexico, with the Duncan Canal receiving water from the Moddle. Canal, and the 

others divert in Arizona. The intake of Sunset Canal, at eastern end of valley, is 

6 miles downstream from station on Gila River below Blue Creek, near Virden, N. Mex. The 

intake of York Canal at western end is about 14 miles upstream from station en Gila River 

near Clifton, Aria.

Records of daily and monthly diversions are available for Sunset and Moddle Canals for 

1914-15 and 1922-31; for Cosper-Windham Canal (included with records for Sunset Canal 

since 1935) for 1914-15 and 1922-27; for Valley Canal for 1914-15 and 1923-31; for Duncan 

Canal for 1923-28; and for Blaek-McClesky and Colmenero Canals for 1923-31; monthly records for all of these canals have been republished in Water-Supply Paper 1049. Discharge 

measurements are available for York Canal for 1914-15 and 1923-31 and for Colmenero Canal 

for 1914-15. Also available are combined monthly diversions in Duncan Valley, and annual 

diversions by each canal for 1936-49.

Records of daily diversions since January 1936, except for Sunset and Moddle (ModdleShriver) Canals for 1939-49, have been collected by Gila Water Commissioner, appointed by 

U. S. District Court for Arizona. Records of diversions since January 1939 for Sunset, 

Moddle, and Shriver Canals are available in regular water-supply pacers. Records for 

Shriver Canal, which is no longer in existence, are included with those for Noddle Canal 

since 1948. Water-stage recorders and Parshall flumes used to obtain records on the 

canals, and rated pumps used to obtain records of Dumped water. See cages 380-384 for 

records of Sunset and Moddle Canals for 1949. Water obtained by pumping from ground water 

for irrigation in Duncan Valley is not included in these records.

The following tabulations of annual diversions by each canal and combined monthly diversions by canals as a group have been compiled by Gila Water Commissioner and-the Geological Survey.

Annual diversions, in acre-feet, to each canal during water year 1948-49 

and calendar year 1946

Canal

Miscellaneous direct pumping..

Total. ......................

Water year 1948-49

3

23 , O20

Calendar year 1948

*2,720

1,540

162

127

0

0

10

9,420

* Record does not Include water diverted to Duncan Canal which amounted 

to 711 acre-feet during water year 1948-49 and 233 acre-feet during calendar 

year 1948.

t All water received through Moddle Canal, but not included In that record.

* Of this amount, 233 acre-feet was received from Moddle Canal during 

period October to December 1948, but is not included in that record.

Combined monthly discharge of canals diverting from Qlla River

in Duncan Valley, N. Mex.-Ariz., during water year

October 1948 to September 1949

Month

December. ................

Calendar year 1948.....

September. ...............

Water year 1948-49.....

Discharge In second-feet

Maximum

21 

29 

54

70

7.9 

4.3 

20 

116 

108 

70 

79 

75 

78

116

Minimum

0 

5.8 

14

0

0 

0 

0 

19 

36 

14 

11 

5.1 

8.4

0

Mean

12.7 

15.2 

29.1

13.0

2.7 

.5 

7.4 

87.6 

71.7 

35.1 

45.9 

32.4 

39.8

31.8

Diversions in 

acre-feet

783 

903 

1,790

9,42O

168 

28 

457 

5,210 

4,410 

2,090 

2,820 

1,990 

3,370

23,020

Note.- Records furnished by Qila Water Commissioner, except those for 

Sunset and Moddle-Shriver Canals.
GILA RIVER BASIN 366

Gila River near Clifton, Ariz.

Location.- Water-stage recorder, lat. 32°57 I 50", long. 109°18'15", in SW^SW^ sec. 30,

 T. 5 S., R. 30 E., 1,100 feet upstream from bridge on former U. S. Highway 666, 

6 miles upstream from San Francisco River, and 7 miles south of Clifton. Datum of 

gage is 3,339.3 feet above mean sea level, datum of 1929, unadjusted.

Drainage area.- 4,040 square miles.

Records available.- November 1910 to July 1918 (published as Gila River at Guthrie),

 March 1928 to October 1933, May 1935 to June 1947, May 1948 to September 1949.

Average discharge.- 23 years (1911-17, 1928-33, 1935-46, 1949), 246 second-feet.

Extremes.- Maximum discharge during year, 13,900 second-feet Jan. 15 (gage height, 15.3 

reet); minimum, 12 second-feet Oct. 8-10.

1910-18, 1928-49: Maximum discharge, 28,200 second-feet Sept. 29, 1941 (gage 

height, 20.12 feet, site and datum then in use); minimum, 8 second-feet July 11, 1948.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are fair. Diversions above station for irrigation. Station is below all Duncan Valley 

diversions.

Revisions [water years).- W 1059: 1911, 1912, 1915, 1917.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22

23 

24 

25

26 

27 

26 

29

30 31'

Oct.

18 

20 

18 

18 

17

15 

13 

12 

12 

12

13 

13 

13 

13 

13

13 

13 

13 

13 

13

21 

23 

20 

20 

18

17 

17 

17 

18 

21 

47

Nov.

76 

80 

75 

66 

60

53 

51 

51 

47 

45

47 

47 

49 

49 

49

47 

47 

44 

40 

38

33 

28 

25 

24 

25

24 

25 

24 

24 

25

Dec.

25 

24 

25 

30 

30

31 

35 

36 

36 

36

33 

33 

33 

31 

28

28 

27 

28 

27 

27

30 

31 

31 

28 

120

217 

354 

1,360 

3,100 

1,280 

643

Jan.

452 

362 

314 

277 

236

200 

172 

147 

150 

290

437 

404 

599 

2,650 

8,930

4,150 

2,180 

1,400 

1,100 

918

822 

842 

987 

1,370 

2,160

2,020 

1,720 

1,280 

952 

741 

592

Feb.

481 

428 

375 

336 

313

279 

259 

244 

223

209

203 

203 

244 

710 

864

612 

463 

434 

481 

564

626 

647 

703 

857 

1,130

1,280 

1,240 

1,200

Month

Goto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year

ter year 1948-49 .......................

Mar.

1,100 

990 

892 

843 

899

1,100 

1,320 

1,970 

4,970 

3,050

2,120 

1,720 

1,480 

1,320 

1,200

1,100 

1,060 

1,060 

1,060 

990

990 

955 

864 

787 

731

668 

626 

584 

512 

463 

445

Apr.

434 

406 

385 

340 

340

340 

365 

380 

4O1 

412

434 

440 

445 

440 

451

481 

538 

531 

512 

505

463 

440 

428 

440 

451

423 

412 

434 

457 

445

Secondfoot-days

524

1,318 

7,797

-

38,854 

15,608 

37,869 

12,973 

7,410 

1,965 

4,114 

3,840 

6,930

139,202

Peak discharne (base, 2,400 sec. -ft. ).- Dec. 29 (4:30

May

451 

440 

385 

350 

340

340 

331 

322 

313 

295

271 

275 

251 

244 

237

248 

248 

226 

219 

213

187 

161 

155 

140 

125

109 

101 

103 

105 

109 

116

Maximum

47 

80 

3 , 100

-

8,930 

1,280 

4,970 

538 

451 

114 

1,030 

593 

1,430

8,930

p.m.) 3,980

June

114 

107 

103 

95 

89

84 

75 

71 

68 

66

65 

64 

58 

56 

52

50

47 

48 

56 

58

56 

56 

59 

58 

65

58

53 

48 

45 

41

July

38 

40 

61

39 

36

34

33 

31 

30 

33

40 

292 

184 

120 

109

60 

145 

107 

142 

107

84 

65 

64 

388 

1,030

217 

158 

125 

107 

123 

72

Minimum

12 

24

24

-

147 

203 

445 

340 

101 

41 

30 

23 

25

12

Aug.

118 

131 

415 

289 

252

190 

181 

593 

328 

190

172 

142 

f!16 

f93 

f75

f66 

65 

54 

47 

39

34 

30

28 

26 

25

24 

24 

23 

23 

23 

24

Mean

16.9 

43.9 

252

-

1,253 

' 557 

1,222 

432 

239 

65.5 

133 

124 

231

381

see. -ft.; Jan. 15 (3

Sept.

25 

26 

30 

30 

46

62 

52 

63 

179 

175

187 

187 

182 

1,100 

1,430

944 

448 

f279 

233 

187

210 

155 

137 

114 

101

87 

79 

68 

58 

56

Runoff in 

acre-feet

1,040 

2,610 

15,470

-

77,070 

30,960 

75,110 

25,730 

14,700 

3,900 

8,160 

7,620 

13,750

276,100

a.m.) 13,90

sec.-ft.; Mar. 9 (9:30 a.m.; 5,940 sec.-ft.j July 24 (11 p.m.) 2,990 see.-ft.; Sept. 14 (10 p.m.) 

6,660 sec.-ft.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
366 GILA RIVER BASIN

Gila River near Solomonsville, Ariz.

Location.- Water-stage recorder, lat. 32°52 I , long. 109°31, in SE^NE^ sec. 31, T. 6 S., R. 

'dti K. , 0.6 mile downstream from intake of Brown Canal, 8 miles northeast of Solomonsville, and 13 miles downstream from San Francisco River. Datum of gage is 3,065.09 feet 

above mean sea level, datum of 1929.

Drainage area.- 7,950 square miles.

Records available.- April 1914 to September 1932, October 1940 to September 1949. February 

laaa to October 1933 and May 1935 to September 1940 at site 3 miles upstream above intake 

of Brown Canal, published as Gila River below Sonita Creek, near Solomonsville. Records 

of monthly discharge above intake of Brown Canal diversion available June 1914 to September 1949, and prior to October 1938, published as Gila River at head of Safford 

Valley, near Solomonsville, Ariz., in Water-Supply Paper 1049.

Average discharge (combined flow).- 35 years (1914-49), 499 second-feet.

Extremes (combined flow).- MTXlmum discharge during year, 25,200 second-feet Jan. 14 (gage 

neight, li.5 feet); minimum daily, 45 second-feet Oct. 12.

1914-49: Maximum discharge, about 100,000 second-feet Jan. 19, 1916, by slope-area 

method; minimum, 25 second-feet July 13, 1948.

Remarks.- Records good. Diversions above station for mining"and irrigation. No diversions 

above station for irrigation in Safford Valley except Brown Canal. Combined discharge 

table on following page shows sum of discharge at this station and of Brown Canal and is 

the amount of water available at head of Safford Valley.

Cooperation.- Record for Brown Canal furnished by Gila Water Commissioner.

KevlslonarTwater years).- W 1059: 1914, 1916-17, 1923(M), 1924-25, 1927, 1929(M), 1930(M),

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

60 

58 

58 

58 

58

56 

53 

47 

47 

46

46 

44

42 

44 

49

49 

49 

47 

56 

66

75 

75 

73 

64 

66

66 

66 

70 

73 

77 

95

Nov.

194 

157 

144 

129 

121

116 

110 

113 

113 

110

108 

113 

116 

113 

113

108 

110 

110 

108 

105

105 

100 

98 

93 

93

93 

93 

93 

88 

86

Dec.

91 

91 

91 

95 

95

100 

105 

100 

95 

110

103 

103 

100

loo

103

103 

100 

98 

93

91

93 

93 

128 

500 

308

543 

855 

2,870 

3,490 

2,240 

1,070

Jan.

782 

624 

532 

458 

396

337 

303 

283 

293 

1,050

1,140 

1,200 

8,960 

16,700 

13,400

6,550 

3,760 

2,580 

1,860 

1,550

1,400 

1,600 

1,910 

4,390 

4,660

4,520 

3,720 

2,390 

1,800 

1,350 

1,110

Feb.

960 

889 

834 

740 

681

636 

600 

584 

560 

520

513 

520 

528 

841 

1,190

948 

740 

681 

710 

856

996 

1,110 

1,290 

1,670 

2,200

2,340 

2,280 

2,050

Montli

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

1,980 

1,860 

1,650 

1,550 

1,800

2,220 

3,310 

6,610 

7,180 

5,350

3,850 

3,010 

2,360 

2,280 

2,080

2,140 

2,280 

2,300 

2,300 

2,280

2,280 

2,140 

1,940 

1,750 

1,600

1,440 

1,320 

1,180 

1,060 

1,010 

924

Apr.

1, 

1,

1, 

1, 

1, 

1, 

1,

1,

1,

1, 

1, 

1, 

1, 

1,

Secondfoot-days

1,833 

3,353 

14,147

73,801

91,608 

28,467 

75,034 

28,923 

15,072 

4,539 

10,294 

8,402 

9,031

290,703

912 

889 

812 

770 

730

690 

710 

780 

834 

900

936 

936 

960 

010 

060

160 

280 

220 

180 

110

010 

960 

960 

984 

010

020 

050 

020 

020

010

May

996 

960 

823 

790 

760

720 

681 

627 

592 

536

513 

513 

506 

492 

463

 463 

463 

443 

405 

392

358 

324 

293 

278 

260

238 

233 

242 

242 

233 

233

Maximum

95 

194 

3,490

3,490

16,700 

2,340 

,180 

,280 

996 

225 

,610 

,320 

,600

16,700

June

225 

213 

201 

186 

179

168 

162 

152

146 

146

137 

152 

162 

152 

137

126 

123 

123 

131 

149

149 

146 

152 

168 

146

143 

126 

123 

113 

103

July

108 

528 

187 

149 

145

141 

134 

123 

139 

279

295 

589 

514 

508 

368

246 

242 

248 

263 

395

268 

387 

257 

327 

1,610

589 

353 

268 

220 

206 

208

Aug.

160 

224 

362 

470 

474

338 

268 

1,100 

1,320 

525

421 

343 

277 

233 

195

175 

164 

149 

134 

116

105 

98 

105 

102 

92

82 

79 

75 

72 

72 

72

1 

Minimum Mean

42 59 . 1 

86 112 

91 456

26 202

283 2,955 

513 1,017 

924 2,420 

690 964 

233 486 

103 151 

108 332 

72 271 

60 301

42 796

Peak discharge (base, 3,500 sec. -ft.).- Dec. 29 (9:30 p.m.) 4,170 sec. -ft.; Jan. 14 (2

Sept.

69 

60 

72 

92 

152

160 

168 

149 

229 

286

233 

281 

319 

414 

1,600

1,010 

 64 

460 

358 

295

284 

303 

246 

216 

191

179 

168 

141 

123 

109

Runoff in 

acre-feet

3,640 

-6,650 

28,060

146,400

181,700 

56,460 

148,800 

57,370 

29,890 

9,000 

20, 420 

16,660 

17,910

576,600

a.m. )

25,ZOO sec.-ftT; Jan. Z4 (4 p.m.) 5,210 sec.-ft.; Mar. 9 (2 p.m.) 8,050 sec.-ft.
GILA RIVER BASIN 367

Combined discharge, in second-feet, of Gila River and Brown Canal 

near Solomonsville, Ariz., water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

60 

58 

58 

58 

58

56 

53 

47 

47 

46

46 

45 

46 

47 

50

50 

49 

51 

60 

66

75 

75 

73 

64 

66

66 

66 

70 

73 

78 

95

Nov.

194 

157 

144 

129 

121

116 

111 

113 

113

110

108 

113 

116 

113 

114

108 

110 

110 

111 

106

105 

100 

98 

93 

93

93 

93 

93 

88 

86

Dec.

91 

91 

91 

95 

95

100 

105 

100 

95

100

103 

103 

100 

100 

103

103

100 

98 

94 

91

93 

93 

128 

501 

308

544 

862 

2,880 

3,500 

2,260 

1,098

Jan.

782

624 

532 

458 

396

337 

303 

283 

293

1,050

1,140 

1,200 

8,960 

16,700 

13,400

6,550 

3,760 

2,580 

1,860 

1,550

1,400 

1,600 

1,910 

4,390 

4,660

4,520 

3,720 

2,390 

1,800 

1,350 

1,110

Feb.

960 

889 

834 

740 

681

636 

600 

584 

560 

520

513 

520 

528 

841 

1,190

948 

740 

681 

710 

856

996 

1,110 

1,290 

1,670 

2,2OO

2,340 

2,280 

2,050

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May. 

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

1,980 

1,860 

1,650 

1,550 

1,800

2,220

3,310 

6,610 

7,180 

5,350

3,850 

3,010 

2,360 

2,280 

2,080

2,140 

2,280 

2,310 

2,310 

2,290

2,390 

2,150

1,950 

1,770 

1,620

1,460 

1,330

1", 190 

1,070 

1,030 

949

Apr.

942 

919

841 

799 

759

719 

737 

807 

864 

933

969 

969 

994 

1,040 

1,090

1,190 

1,310 

1,250 

1,210 

1,140

1,040 

994 

988

1,010 

1,030

1,030 

1,060 

1,040 

1,030 

1,020

Secondfoot-days

1,852 

3,359 

14,217

74,407

91,608 

28,467 

75,229 

29,724 

15,407 

4,696 

10,623 

8,596 

9,115

292,893

May

1,000 

968 

833 

798 

764

723 

683 

627 

595 

546

529 

540 

536 

511 

481

481 

482 

461

419 

401

364 

329 

299 

285 

270

249 

243 

252 

252 

243 

243

Maximum

95 

194 

3,500

3,500

16,700 

2,340 

7,180 

1,310 

1,000 

235 

1,630 

1,330 

1,600

16,700

June

235 

223 

210 

195 

188

175 

167

157 

151

151

142 

158 

168 

157 

142

131 

128 

128 

136 

153

151 

148 

154 

172

151

148 

131 

126

115 

105

July

111 

547 

199 

158 

150

146

139 

128

142 

279

302 

605 

530 

525 

385

262

259 

261 

272 

406

279 

398 

268 

338 

1,630

599 

364 

278 

229 

215 

219

Minimum

45 

86

91

26

283

513 

949 

719 

243 

105 

111 

72 

62

45

Aug.'

168 

233 

372 

480 

487

350 

279 

1.11C 

1,330

536

432 

353 

287 

243 

204

181 

170 

155 

140 

122

111 

102 

105 

102 

92

82

79 

75 

72 

72 

72

Mean

59.7 

112 

459

212

2,955 

1,017 

2,427 

991 

497 

156 

343 

277 

304

802

Sept.

69 

62 

76 

93

154

165 

173 

154 

236 

294

242 

290 

322 

414 

1,600

1,010 

666 

461 

359 

295

284 

303 

246 

216

191

179 

171 

148 

128 

114

Runoff in 

acre-feet

3,670 

6,660 

28,200

147,600

181, 7OO 

56,460 

149,200 

58,960 

30,560 

9,310 

21,070 

17,050 

18,080

580, 900
368 GILA RIVER BASIN 

Diversions from Gila River in Safford Valley, Ariz.

Safford Valley lies along Gila River in Graham County, Ariz., extending from vicinity 

of Bonita Creek on the east to San Carlos Indian Reservation on the west. Twelve canals, 

listed in following table in downstream order, and one pump divert water from Gila River 

for Irrigation in the valley. Intake of Brown Canal, at upper end of the valley, is 0.6 

mile upstream from station on Gila River near Solomonsville. Intake of Colvin-Jones 

Canal, at lower end, is 25.8 miles upstream from station at Calva.

Records of monthly diversion for all canals except Fourness, Fort Thomas, and ColvinJones are available for 1914-15; records of daily and monthly diversions for all the 

canals except Colvin-Jones are available for 1920-31; records for Brown Canal are available also for water year 1931-32 (Tidwell Canal published as Michelana Canal inl.-ecords 

for 1914-15 and 1920-31). Records of combined monthly diversions in Safford Valley, and 

annual diversions by each canal are available for 1936-49.

Records of daily diversions sinSe January 1936 have been collected by the Gila Water 

Commissioner, appointed by U. S. District Court for Arizona. Water-stage recorders with 

Parshall flumes or weirs are used by water commissioner to obtain records of diversion by 

canals, and rated pump is used to obtain record of pumped water. See record for Gila 

River at Safford for flow of Gila River between intakes of Graham and Smithville Canals. 

Water obtained by pumping from ground water for irrigation in Safford Valley is not included in these records.

The following tabulation of annual diversions by each canal and combined monthly diversion by canals as a group has been compiled and furnished by Gila Water Commissioner.

Annual diversions, in acre-feet, by each canal during water year 1948-49 

and calendar year 1948

Canal

Miscellaneous direct 

pumping. .............

Total.. ..............

Water year 1948-49

242

152,800

Calendar year 1948

1,200

9,010

59

39,850

Combined monthly discharge of canals diverting from the Gila River in Safford valley, Ariz., 

during water year October 1948 to September 1949 __

Month

September ...........................

Water year 1948-49. ...............

Discharge In second-feet

Maximum

21.7 

39.9

338

382

156 

19.1 

558 

774 

546 

274 

370 

378 

351

774

Minimum

5.2 

14.9 

37.3

0

0 

0 

68.4 

525 

279 

114 

107 

69.0 

65.3

0

Mean

14.1 

28.3 

87.6

55.0

29.2 

3.3 

415 

668 

432 

180 

256 

219 

189

211

Diversions in 

acre-feet

865 

1,680 

5,380

39,850

1,800 

183 

25,510 

39,740 

26,540 

10,700 

15,750 

13,450 

11,240

152,800
GILA RIVER BASIN

369

Gila River at Safford, Ariz.

Location.- Water-stage recorder, lat. 32°50'50", long. 109°42'55", in SW£sw£ sec. 5, T. 

7 $., K. 26 E., at highway bridge 1 mile north of Safford and 4|- miles downstream from 

San Simon Creek. Datum of gage is 2,880.07 feet above mean sea level, datum of 1929.

Drainage area.- 10,460 square miles.

Records available.- June 1940 to June 1947, June 1948 to June 1949 (discontinued).

Extremes.- Maximum discharge during period October 1948 to June 1949, 23,900 second-feet 

Jan. 14 (gage height, 13.1 feet); minimum .discharge, 9.0 second-feet Dec. 20. (Maximum 

discharge for period is also maximum for water year.)

1940-49: Maximum discharge, 33,000 second-feet Sept. 30, 1941 (gage height, 13.0 

feet); no flow at times during summer months.

Remarks.- Records good. Many diversions above station for irrigation and mining. Canals 

diverting in Safford Valley above station are Brown, Tidwell,.Fourness, San Jose, 

Montezuma, Union, and Graham. Those diverting below station are Smithville, DodgeNevada, Curtis, Fort Thomas, and Colvin-Jones.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IB 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30, 

31

Oct.

52 

52 

47 

43

42

44 

43 

35 

35 

35

32 

31 

28 

27 

32

36 

39 

39 

39

47

58 

58 

60 

54 

57

50 

50 

50 

52 

56 

68

Nov.

154 

157 

143 

114 

99

102 

95 

97 

a 90 

a 90

a 90 

a 90 

93 

91 

82

80 

79 

34 

84 

79

77 

79 

73 

68 

66

68 

71 

77 

63 

62

Dec.

60 

60 

56 

58 

60

64 

70 

71 

66 

66

63 

80 

66 

62 

48

48 

57 

47 

54 

25

25 

37 

63 

412 

388

437 

806 

2,440 

3,220 

2,590 

834

Jan.

550 

442 

447 

422 

337

290 

250 

220 

220 

705

846 

846 

5,290 

18,400 

13,800

6,570 

3,340 

2,450 

1,700 

1,370

1,290 

1,370 

1,460 

4,080 

4,320

4,140 

3,220 

2,260 

1,600 

1,290 

1,100

Feb.

955 

842 

770 

728 

674

638

605 

570 

540 

512

484 

484

484 

662 

1,020

854 

668 

626 

674 

806

934

1,070 

1,250 

1,500 

2,020

2,320 

2,380 

2,080

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebri 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Th

Lendar year

e period.... ....... ....................

Mar.

1,860 

1,650 

1,460 

1,330 

1,330

1,550 

1,920 

4,220 

6,990 

5,000

3,380 

2,650 

2,380 

2,200 

1,970

1,920 

1,860 

1,860 

1,800 

1,800

1,750 

1,600 

1,420 

1,290 

1,130

1,040 

934 

836 

728 

662 

565

Apr.

520 

5OO 

464 

433 

384

356 

338 

374 

412 

456

496 

525 

545 

575 

626

656 

710 

710 

686 

674

626 

575 

550 

S10 

638

638 

638 

632 

615 

620

Secondfoot-days

1,391 

2,697 

12,433

-

84,625 

27,150 

61,085 

16,582 

6,680 

1,078

-

May

626 

575 

512 

444

408

380 

402 

329 

290 

240

221 

205 

187 

142 

140

140 

138 

129 

123 

166

157 

136 

91 

86 

82

69 

54

52 

50 

50 

56

Maximum

68 

157 

3,220

-

18,400 

2,380 

6,990 

'710 

626 

68

-

June

60 

57 

47 

40 

37

35 

68 

38 

30 

24

21 

19 

28 

31 

26

19 

30 

60 

35 

34

41 

45 

39 

51 

43

36 

29 

20 

17 

18

Minimum

July

27

62 

25

-

220 

484 

565 

338

50 

17

-

Aug.

Mean

44.9 

89.9 

401

-

2,730 

970 

1,970 

553 

215 

35.9

-

Sept.

Runoff in 

acre-feet

2,760 

5,350 

24,660

-

167,800 

53,850 

121,200 

32,890 

13,250 

2,140

423,900

Peak discharge (base. 3.50O sec.-ft.).- Dec. 30 (3 a.m.) 4,320 sec.-ft.; Jan. 14 (6 a.m.) 23,900 

sec.-ft.; Jan. 24 (4:30 pirn.) 5,000 sec.-ft.; Mar. 9 (3:30 p.m.) 7,790 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

Gila River near Solomonsville and San Simon Creek nesr Solomonsville.
370 GILA RIVER BASIN 

Gila River at Calva, Ariz.

Location.- Water-stage recorder, lat. 33°11'10", long. 110°13'10", in sec. 5, T. 3 S., 

K. 21 E., unsurveyed, on San Carlos Indian Reservation, at railroad bridge at head 

of San Carlos Reservoir, If miles northwest of Calva. Datum of gage is 2,514.77 

feet above mean sea level, datum of 1929.

Drainage area.- 11,490 square miles.

Records available.- March 1929 to September 1949.

Average discharge.- 20 years. 293 second-feet.

Extremes.- Maximum discharge during year, 19,400 second-feet Jan. 15 (gage height, 11.47 

feet); minimum, 0.1 second-foot Oct. 17.

1929-49: Maximum discharge, 27,900 second-feet Oct. 1, 1941 (gage height, 11.82 

feet); no flow for sjiort periods in most years.

Maximum discharge known, probably in excess of 100,000 second-feet occurred Jan. 20, 

1916, computed on basis of peak discharge at stations near Solomonsville and at Kelvin.

Remarks.- Records good except those for periods of fragmentary or no gage-height record, 

which are poor. Diversion above station for irrigation, metallurgical treatment of 

ores, and municipal uses. Two miscellaneous measurements made 13 and 9 miles, respectively, downstream from station and above San Carlos Reservoir showed 29.6 second-feet 

Dec. 1, just above San Carlos River, and 0.25 second-foot Sept. 1, 4i miles above San 

Carlos River.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14 

13 

10 

11

9.3

7.7 

13 

14 

11 

6.1

5.8 

4.8 

3.1 

3.1 

1.9

.8 

.2 

2.1 

8.8 

11

9.3 

15 

18 

18 

19

24 

24 

21 

20 

56 

46

Nov.

28 

85 

94 

83 

68

63 

63 

57 

57 

59

57 

51 

47 

49 

49

45 

45 

40 

47 

49

49 

49 

49 

47 

45

44 

42 

40 

45 

44

Dec.

38 

32 

3C 

18 

17

21 

25 

28 

29 

29

28 

27f 

30 

36 

27

22 

15 

15 

13 

9.3

12 

16 

14 

10 

266

223 

424 

901 

2,240 

2,430 

890

Jan.

503

410 

365 

338

281

246 

204 

170 

157 

254

739 

803 

1,350 

4,180 

13,500

14,200 

8,280 

3,140 

2,100 

1,650

1,310 

1,340 

1,450 

2,350 

4,850

4,580 

4,240

2,820 

1,860 

1,530 

1,310

Feb.

1,170 

1,010 

897 

815 

762

710 

660 

621 

592 

554

526 

508 

500 

504 

710

842 

762 

660 

635 

66Q

736 

842 

826 

1,070 

1,420

1,910 

2,100 

2,000

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Peak discharge (base, 3,500 sec. -ft.).- Ja

sec. -ft.; Mar. 10 (9 p.m.) 6,290 sec. -ft.; A 

a No gage-height record: discharge compute 

f Fragmentary gage-height record; dlscharg

Mar.

1,860 

1,570 

1,380 

1,270 

1,270

1,270 

1,450 

2,140 

4,010 

5,640

4,280 

P,870 

2,360 

2,150 

1,960

1,820 

1,730 

1,730 

1,690 

1,690

1,650 

1,610 

1,530 

1,420 

1,270

1,140 

f975 

f900

fa 25

f750 

f675

Apr.

601 

559 

518 

486 

425

355 

335 

319 

304 

316

367 

442 

473 

473 

482

473 

540 

621 

601

616

597 

540 

500 

47,3 

549

568 

540 

559 

582 

611

Secondfoot-days

421.0 

1,590 

7,915.3

40,273.1

80,510 

25,102 

56,885 

14,825 

6,922 

733.8 

5,314.0 

8,523 

4,125.4

212,866.5

May

621 

625 

573 

508 

430

392 

347 

339 

293 

256

242 

234 

210 

183 

164

151 

142 

127 

116 

102

99 

105 

105 

99 

84

77 

68 

64 

60 

56 

50

Maximum

56 

94 

2,430

2,430

14,200 

2,100 

5,640 

621 

625 

48 

954 

3,360 

932

14,200

June

48 

47 

45 

43 

42

37 

32 

30 

28

27

27 

26 

22 

20 

18

17 

17 

30 

26 

22

18 

17 

15 

14 

13

11 

11 

11 

10 

9.8

July

8.0 

f30 

f30 

f20 

f30

f!5 

f!5 

f!4 

f!3 

346

281 

148 

128 

197 

130

118 

75 

43 

27 

31

48 

113 

78 

954 

714

809 

339 

220 

164 

f94 

f82

Aug.

66 

f64 

f62 

f53 

264

208 

152 

1,360 

3,360 

1,470

401 

260 

172

mo

79

61 

52 

42 

35 

31

31 

27 

26 

a24 

a22

a 20 

a 18 

a!6 

a!4 

a!2 

11

Minimum Mean

0.2 13.6 

28 53.0 

9.3 255

0 110

157 2,597 

500 896 

675 1,835 

304 494 

50 223 

9.8 24.5 

8.0 171 

11 275 

6.4 138

.2 583

n. 15 (1 p.m.) 19,400 sec. -ft.; Jan. 25 (2 p. 

ug. 9 (3 p.m.) 4,400 sec. -ft. 

d on basis of adjoining (good record, 

e computed from partly estimated gage heights

Sept.

10 

9.8 

9.8 

9.1 

24

9.8 

8.4 

8.4 

7.7 

7.0

7.0 

6.4 

7.0 

154 

837

932

606 

379 

285 

210

161 

111 

95 

66 

54

35 

24 

19 

17 

16

Runoff In 

acre-feet

835 

3 , ISO 

15,700

79,890

159,700 

49,790 

112,800 

29,400 

13,730 

1,460 

10,540 

16,910 

8,180

422,200

m.) 5,230
GILA RIVER BASIN 371

San Carlos Reservoir at Coolidge Dam, Ariz.

Location.- Water-stage recorder, lat. 33°10'30 M , long. 110°31'45", in NW£ sec. 17, T. 3 S., 

K. IB E., unsurveyed, at Coolidge Dam on Gila River. Datum of gage is at mean sea level, 

datum of 1929.

Drainage area.- 12,890 square miles.

Records available.- November 1928 to September 1949.

Extremes.- Maximum contents during year, 260,300 acre-feet Apr. 1-3 (elevation, 2,451,72 

i'eet); no usable storage Oct. 9-30; minimum stage, 2,382.47 feet Oct. 25.

1928-49: Maximum contents, 819,200 acre-feet Mar. 18, 1942 (elevation, 2,501.62 

feet, datum of 1929); minimum (since appreciable storage was attained in 1929), no 

storage part of each summer in 1939, 1946-48.

Remarks.- Reservoir is formed by concrete multiple-dome.dam; dam completed Oct. 25, 1928; 

storage began Nov. 15, 1928. Total usable capacity,' 1,205,000 acre-feet between elevations 2,382.63 feet (sill of lowest outlet gate) and 2,523.0 feet (top of automatic 

spillway gates in raised position) above mean sea level. Dead storage below elevation 

2,382.63 feet, 3,834 acre-feet according to 1947 survey. Figures given herein represent 

usable contents. Water is used Cor irrigation of San Carlos project and for power 

development, dependent on irrigation demands.

Usable contents at 12 p.m., in acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13ifi§

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

78

66

59

46

33

13

6

6

0

0

0

0

0

0

0

O

9

0

0

0

0

0

0

0

0

0

0

0

O

0

113

Nov.

140

180

331

414

442

449

456

442

435

442

442

442

421

414

400

393

379

365

352

358

372

372

386

393

386

386

372

365

365

372

-

Dec.

372

365

358

338

317

296

296

296

296

303

310

317

324

345

345

331

324

296

282

262

262

442

442

393

604

1,170

2,160

3,920

7,410

10,940

12,990

Jan.

13,810"

14,380

14,810

15,220

15,590

15,890

16,120

16,350

16,690

18,710

20,120

21,590

24,140

29,970

37,510

58,780

78,980

85,580

89,390

92,420

95,930

97,490

100,200

104,500

U.2,300

220,200

328,100

133,800

138,000

141,000

143,600

Feb.

145,700

145,400

149,100

150,600

151,900

153,200

154,400

155,500

156,600

157,500

158,600

159,400

160,300

161,100

162,300

163,900

165,400

166,700

167,900

169,100

170,500

172,100

173,800

175,400

177,600

180,600

183,900

187,000

-

-

-

Mar.

190,100

192,700

194,900

196,700

198,200

200,000

202,200

205,100

211,400

220,600

228,900

232,800

337,500

240, 700

243,400

245,600

247,900

249,800

251,700

253,200

254,800

256,400

257,300

258,400

259,100

259,600

260,000

260,200

260,000

260,000

259,900

Apr.

260,300

260,300

260,300

260,100

260,000

259,600

259,000

258,600

258,100

257,500

256,900

256,600

256,300

256,000

255,700

255,400

255,100

255,100

255,000

254,900

254,800

254,800

254,500

254,100

253,900

253,600

253,500

253,300

252,800

252,700

-

May

252, 700

252,400

252,400

252,100

251,900

251,500

251,200

250,800

250, 400

249 , 700

249,200

248,800

248,200

247,500

246,800

246,100

245,800

245,200

244, 600

243,900

243,200

242,700

242,100

241,600

240,900

240, 400

239,600

238,700

237,800

237,000

236,000

June

235,200

234, 200

233,200

232,200

231,400

230,400

229,400.

228, 400

227,200

226,500

225,600

224,500

223,200

222,000

220,900

219,600

218,200

216,900

215,600

214,300

212,900

211,500

210,000

208,600

207,200

205,700

204,300

202,800

201,200

199,700

-

July

198,300

197,000

195,800

194,400

192,900

191,500

189,600

187,900

186,300

185,000

183,900

182,500

180,900

179,500

178,100

176,500

174,900

173,200

171,400

169,900

168,400

166,900

166,100

166,800

167,100

168,100

168,000

167,300

166,200

165,000

164,100

Aug.

162,800

161,300

159,500

157,900

157,000

155,700

154,300

156,000

161,200

163,700

163,000

161,900

160,500

159,100

157,600

156,000

154,500

152,800

151,000

149,400

147,400

145,500

143, 700

141,900

139,900

138,000

136,200

134,300

132,300

130,300

128,300

Sept.

126,400

124,400

122,400

120,500

118,700

116,900

115,200

113,500

112,000

111,100

109,900

108,700

108,500

108,500

109,600

111,500

112,900

113,300

113,400

113,300

113,200

113,000

112,700

112,300

111,800

111,300

110,.700

110,300

109,700

109,000

-

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31. ..................

Calendar year 1948.». ....

Sept. 30.... ...............

Water year 1948-49 ......

Elevation 

" (feet)t

2,394.82

_

2,426.91

-

Contents 

(acre-feet)

12,990

-

128,300

109,000

-

-Change in contents 

during month 

(acre-feet)

+12,620

a+12,720

-35,800

-19,300

+108,900

t Elevation at 12 p.m.

a Computed using new capacity table for Dec. 31, 1947.
372 GILA RIVER BASIN 

Gila River below Coolidge Dam, Ariz.

Location.- Water-stage recorder and Parshall flume, lat. 33°10'15", long. 110°31'45", in 

" SWf sec. 17, T." 3 S., R. 18 E. , unsurveyed, 2,200 feet downstream from Coolidge Dam. 

Datum of gage is 2,309.33 feet above mean sea level, datum of 1929.

Drainage area.- 12,890 square miles.

Records available.- April 1914 to September 1949 (prior to October 1926, published as Gila 

tfiver near Ban Carlos) July 1899 to November 1905 at site 8 miles upstream, below mouth 

of San Carlos River. August 1910 to February 1911 at site 10 miles upstream, above 

mouth of San Carlos River.

Average discharge.- 37. years (1901, 1904, 1914-49), 415 second-feet (adjusted for storage

in San Uarios Keservoir).

Extremes.- Maximum discharge during year, 1,090 second-feet July 18 (head on flume, 4.07 

reetJ; minimum daily, 0.6 second-foot Oct. 5-18, 27-29.

"1914-49: Maximum discharge, 130,000 second-feet Jan. 20, 1916, computed on basis of 

peak discharge near Solomonsville and at Kelvin; no flow for several periods.

Maximum discharge since completion of Coolidge Dam, 1,240 second-feet July 31, 1937 

(head on flume, 4.35 feet); no flow at Coolidge Dam at times in most years when gates 

in dam were closed.

Revisions.- The figures of maximum discharge for some water years have been revised 

as shown in the following table. They supersede those published in the water-supply 

papers indicated.

Water-Supply 

Paper

459. ........

529.. .......

549. ........

589. ........

Water 

year

1914 

1917

1921

1922

1924

Date

Aug. 24 

Oct. 14

Aug. 21

Dec. 28

Gage height 

(feet)

8.25 

20.4

5.65

11.0

Discharge 

(second-feet)

t7,400 

74,000

$14,000

2,800

15,100

t Previously unpublished. 

t Estimated.

Remarks.- Records excellent except those below 5 second-feet, which are fair. Crest width 

of Parshall flume, 30 feet. Large diversions above San Carlos Reservoir for irrigation, 

metallurgical treatment of ore, and municipal supply. Flow regulated by San Carlos 

Reservoir at Coolidge Dam since Nov. 15, 1928 (see preceding page). Record includes 

flow of Warm Springs which enters between dam and gage and which amounted to 0.71 

second-foot by measurement on May 21.

Revisions (water years)- W 1049: 1899-1904. W 629: 1915, 1316. Revised figures of 

discharge, in .second-feet, for periods in water years 1921 and 1923 are given herewith. 

They supersede those published in Water-Supply Papers 529, 569.

Day 

(water 

year)

192O-21 

July 21 

22 

23

Discharge 

(secondfeet)

366 

339 

205

Day 

( water 

year)

1920-21 

July 24 

25 

26

Month

Water ye 

Calendar

Water ye 

Calendar

ar 1920-21. .............

year 1921. .............

ar 1922-23... ...........

Discharge 

(secondfeet)

173 

808 

4,100

Secondfoot-days

33,177.8 

91,755 

158,341.7 

152,610.7

14,835.5 

116,553.0 

186,403.0

Day 

(water 

year)

1920-21 

July 27 

Aug. 21 

22

Maximum

7,470 

11,000 

11,000 

11,000

5,000 

5,450 

11,800

Discharge 

( secondfeet)

4,700 

4,300 

11,000

Minimum

0.2 

900 

.2 

.2

.5 

.5 

.5

Day 

(water 

year)

192O-21 

Aug. 23 

1922-23 

July 22

Mean

1,070 

2,960 

434 

418

479 

319

511

Discharge 

(secondfeet)

9,000 

5,000

Runoff In 

acre-feet

65,810 

182,000 

314,100 

302,700

29,430 

231,100 

369,700
GILA RIVER BASIN 373

Discharge, In second-feet, of Olla River below Coolldge Dam, Arlz. 

water year October 1948 to September 1949

Day

1

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.3 

1.0 

.8 

.8 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.6 

.6 

.6 

.8 

1.0

Nov.

3.7 

6.0 

16 

36 

48

52 

54 

51 

50 

50

51 

51 

50 

46 

44

43 

41 

38 

36 

36

36 

36 

36 

37 

37

37 

36 

34 

33 

34

Dec.

34 

36 

34 

32 

28

25 

24 

24 

25 

27

26 

26 

27 

28 

32

32 

28 

27 

24 

23

22 

32 

55 

50 

51

51 

2.4 

2.4 

33 

46 

46

Jan.

46 

46 

46 

44 

44

44 

44 

44 

44 

20

2.0 

1.6 

2.0 

1.6 

1.4

1.0 

1.0 

1.4 

1.4 

1.4

1.0 

.8 

1.0 

1.0 

3.4

1.4

1.4 

1.4 

1.4 

1.4 

1.4

Feb.

1.4

1.4 

1.4 

1.4 

1.0

1.0 

1.4 

1.6 

1.6 

1.6

2.0 

2.0 

2.0 

2.0 

2.0

14 

1.6 

1.6 

1.6 

1.6

1.4 

1.6 

1.4 

152 

199

220 

256 

254

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

254 

264 

298 

300 

298

298 

330 

429 

429 

432

429 

441 

482 

479 

495

518 

518 

518 

627 

670

681 

715 

715 

715 

715

715 

711 

711 

711 

696 

666

Apr.

627 

558 

514 

511 

508

505 

505 

508 

531 

602

585 

585 

582 

582 

582

582 

582 

582 

585 

565

545 

541 

575 

585 

589

585 

585 

585 

585 

585

Secondfoot-days

22.3 

1,158.7 

952.8

32,554.6

452.4 

1,129.6 

16,260 

16,941 

13,553 

17,366 

21,798 

25,324 

13,132

128,089.8

May

585 

589 

538 

511 

511

511 

511 

514 

498 

457

460 

463 

463 

463 

463

408 

359 

365 

365 

362

356 

356 

356 

356 

359

362 

386 

441 

396 

396 

393

Maximum

1.3 

54 

55

300

46 

256 

715 

6T27 

589 

730 

886 

947 

947

947

June

393 

426 

444 

444 

444

466 

508 

508 

505 

500

511 

521 

555 

555 

585

638 

633 

645 

648 

645

648 

648 

648 

648 

652

692 

685 

711 

730 

730

July

730 

718 

692 

726 

726

726 

834 

838 

834 

830

834 

834 

834 

830 

830

830 

826 

846 

886 

850

715 

731 

427 

435 

251

435 

415 

511 

589 

598 

637

Minimum

0.6 

3.7 

2.4

.4

.8 

1.0 

254 

505 

356 

393 

251 

292 

36

.6

Aug.

715 

779 

826 

822 

695

816 

826 

640 

292 

630

768 

783 

779 

779 

783

791 

806 

850 

850 

866

931 

935 

918 

914 

914

914 

922 

939 

947 

947 

947

Mean

0.72 

38.6 

30.7

88.9

14.6 

40.3 

525 

565 

437 

579 

703 

817 

438

351

Sept.

947 

943 

939 

939 

842

886 

874 

830 

710 

417

606 

572^ 

30V 

36 

36

38 

39 

213 

230 

222

208 

208 

208 

225 

274

274 

274 

274 

274 

293

Runoff In 

acre-feet

44 

2,300 

1,890

64,570

897 

2,240 

32,250 

33,600 

26,880 

34,440 

43,240 

50,230 

26,050

254,100
374 GILA RIVER BASIN

Gila River at Winkelman, Ariz.

Location.- Water-stage recorder, lat. 33°00'10", long. 110°45'55", in NW^NEij sec. 13, T. 

b S., K. 15 E. , 1-5- miles north of Winkelman, 2 miles upstream from San Pedro River, and 

29 miles downstream from Coolidge Dam. Datum of gage is 1,920.95 feet above mean sea 

level, datum of 1929, supplementary adjustment of 1949.

Drainage area.- 13,280 square miles, of which 390 square miles is below Coolidge Dam.

Records available - September 1941 to September 1949. September 1917 to June 1918 (prior 

to closing or Coolidge Dam) and December 1928 to February 1935 (discharge measurements 

only) at site 1.5 miles downstream.

Extremes.- Maximum discharge during year, 3,380 second-feet Sept. 13 (gage height, 6.70 

i'eet); minimum daily, 0.1 second-foot Oct. 17.

1941-49: Maximum discharge, 55,000 second-feet Aug. 9, 1944 (gage height, 18.40 

feet), by slope-area method; no flow parts of June, July, and August 1947.

Remarks.- Records excellent except those below 10 second-feet, which are fair. Large

diversions above station for irrigation but none between Coolidge Dam and this station. 

Flow regulated by San Carlos Reservoir (see p. 371).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

. 19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.0 

.9 

.9 

.9 

.8

.7 

.6 

.4 

.4 

.2

.2 

.2 

.3 

.3 

.2

.2 

.1 

.2 

.5 

.7

.7 

.6 

.4 

.3 

.3

.3 

.3 

.4 

.4 

13 

11

Nov.

3.9 

2.6 

2.4 

2.2 

14

36 

43 

44 

44 

44

46 

46 

46 

44 

43

41 

41 

36 

35 

34

35 

35 

37 

38 

38

38 

37 

34

33 

32

Dec.

34 

35 

-35 

34 

32

30 

26 

25 

23 

24

25 

26 

26 

27 

29

31 

33 

30 

29 

26

25 

33 

59 

56 

48

93 

52 

35

18 

20 

38

Jan.

42

54 

61 

42 

39

39 

39 

42 

56 

85

42 

19 

22 

31 

25

36 

37 

22 

17

13 

12 

12

12 

13

16 

17 

16 

13 

12 

11

Feb.

10 

10 

10 

10 

10

10 

10 

10 

10 

9.6

9.2

9.6 

10 

10 

9.6

9.2 

8.8 

12 

10 

8.8

8.0 

7.6 

7.2 

7.2 

119

150 

202 

234

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 1,900 sec. -ft.). -

3.38O sec .-ft.

Mar.

241 

247 

295 

303 

306

306 

310 

405 

464 

469

464 

459 

498 

508 

498

529 

534 

523 

560 

668

668 

698 

704 

698 

698

704 

704 

704 

692 

692 

662

Apr.

656 

620 

534 

523 

523

518 

523 

529 

529 

614

620 

614 

609 

598 

592

587 

582 

582 

576 

570

529 

523 

534 

570 

570

565 

560 

560 

555 

555

Secondfoot-days

37.4 

1,005.1 

1,057

30,703.5

911 

931.8 

16,211 

17,020 

12,535 

17,318 

21,801 

24,762 

13,900

127,489.3

May

549 

549 

544 

479 

474

474 

474 

479 

479 

441

414 

423 

423 

418 

427.

427 

322 

318 

318 

318

314 

310 

310 

314 

314

322 

325 

432 

383 

378 

383

Maximum

13 

46 

93

284

85 

234 

704 

656 

549 

750 

884 

926 

975

975

June

374 

378 

436

436 

436

436 

493

513 

513 

518

508 

503 

529 

539 

549

609 

686 

750 

668 

656

650 

656 

656 

656 

656

680 

692 

698 

722 

722

July

716 

716 

710 

735 

728

716 

764 

842 

849 

856

828 

821 

821 

821 

814

821 

814 

807 

877 

884

776 

788 

520 

414 

382

259 

392 

387 

539 

662 

724

Aug.

564 

742 

821 

814 

769

722 

814 

926 

473

376

710 

770 

770 

770 

770

770 

770 

800 

821 

821

863 

919 

912 

891 

891

905 

898 

912 

926 

926 

926

Minimum Mean

0.1 1.20 

2.2 33.5 

18 34.1

.1 83.9

11 29.4 

7.2 33.3 

241 523 

518 567 

310 404 

374 577 

259 703 

376 799 

64 463

.1 349

Sept.

926 

926 

919 

926 

975

842 

870 

828 

788 

512

527 

614 

954 

149

78

67 

64 

87 

202 

238

211 

208 

208 

211

247

264 

264 

264 

264 

267

Runoff in 

acre-feet

74 

1,990 

2,100

60,890

1,810 

1,850 

32,150 

33,760 

24,860 

34,350 

43,240 

49,110 

27,570

252,900

June 18 (5:30 p.m.) 2,270 sec. -ft.: Sept. 13 {l p.m.)
GILA RIVER BASIN 375

Gila River at Kelvin, Ariz.

Location.- Water-stage recorder, lat. 33°06'15", long. 110°58'45", inNW^NW^-sec. 12, 

T. 4 S., R. 1-3 E., at Kelvin, 1,000 feet downstream from Mineral Creek, 17 miles 

downstream from San Pedro River, and 19j miles upstream from Ashurst-Hayden Dam. 

Datum of gage is 1,743.22 feet above mean sea level, datum of 1929, supplementary 

adjustment of 1949.

Drainage area.- 18,000 square miles of which 5,140 square miles is below Coolidge Dam. 

Records available.- January 1911 to September 1949.

Average discharge.- 38 years (1911-49), 556 second-feet (adjusted for storage in San Carlos Keservoir).

Extremes.- Maximum discharge during year, 5,610 second-feet Sept. 15 (gage height, 7.12 

feet) ; minimum daily, 2.4 second-feet several days in October.

1911-49: Maximum discharge, about 132,000 second-feet Jan. 20, 1916 (gage height, 

19.5 feet), from rating curve extended above slope-area measurement at 82,000 secondfeet; minimum, less than 1 second-foot in summers of several years.

Maximum discharge since completion of Coolidge Dam, 42,800 second-feet Aug. 8, 1930 

(gage height, 12.6 feet); minimum, 0.3 second-foot Aug. 4-6, 1947.

Remarks.- Records good except those for periods of fragmentary or no gage-height record, 

which are fair. Large diversions above station for irrigation, of which more than 

90 percent is above Coolidge Dam. Plow regulated by San Carlos Reservoir at Coolidge 

Dam since Nov. 15, 1928, (see p.371); no'other regulation.

Revisions (water years).- W 329: 1911. W 629: 1914-17. W 609: 1916(M). W 1119: 1913, 

1915, 1917(M), 19B1(M), 1922, 1923, 1927(M).

Discharge, In second-feet, water year October 1948 to September 1949

Bay

1 

2 

3 

4

5

6 

7

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

28 

14 

9

7 

5

4

3.5 

3.5 

3 

3

2.6 

2.4 

2.4 

2.7 

2.6

2.4 

2.4 

3.5 

5.0 

3.1

2.9 

2.7 

2.6 

2.4 

2.6

2.6

2.7 

2.9 

2.9 

5.0 

12

Nov.

22 

15 

9.6 

7.4 

6.1

18 

36 

42 

42 

43

43 

43 

45 

45 

43

42 

42 

40 

38

38

38 

38 

40 

45 

43

45 

43 

38 

39 

39

Dec.

39 

40 

43 

42 

40

39 

38 

37 

34 

34

35

36 

37 

36 

36

37 

39 

37 

35 

35

34 

43

63 

70 

60

94 

294

168 

f86 

f46 

f46

Jan.

72 

78 

90 

90 

68

58 

58 

58 

245 

380

219

100 

154 

E95 

196

171 

181 

120 

78 

52

43 

39 

36 

61 

240

236 

196 

164 

136 

90 

60

Feb.

53 

52 

49 

42 

37

34 

35 

37 

62 

67

60 

55 

70 

86 

68

104 

168 

134 

95 

65

49 

43 

38 

32 

98

196 

249 

272

Month

Oeto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Api1 ! 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1946

ter year 1948-49- .......................

Mar.

262 

253 

E81 

310 

321

321 

326 

352 

409 

428

440 

434 

453 

479 

472

486 

493 

500 

506 

615

623 

663 

687 

679 

671

639 

639 

647 

647 

631 

631

Apr.

639 

623 

585 

578 

556

520 

506 

506 

513 

534

593

585 

578 

578 

571

578 

585 

585 

585 

585

571 

534 

534 

556 

556

563 

556 

548 

548 

548

Secondfoot-days

150.4 

1,068.1 

1,753

43,754.5

4,064 

2,350 

15,298 

16,897 

12,356 

16,871 

28,908 , 

29,601 

18,814

148,130.5

Peak discharge (base, 4,000 sec. -ft.).- July. 31 (6:30

May

541 

534 

534 

486 

472

472 

472 

472 

466 

434

409

415 

415 

415 

415

415 

369 

326 

316 

310

305 

300 

305 

305 

300

310 

326 

369 

398 

375 

375

Maximum

28 

45 

294

1,420.

380 

272 

687 

639 

541 

780 

1,840 

3,220 

1,880

3,220

a.m.) 4,740

June

375 

370 

410 

420 

420

430 

460 

490 

490 

500

506 

500 

500 

527 

527

556 

608 

699 

780 

663

839 

663 

647 

639 

639

647 

671 

671 

704 

720

July

720 

720 

843 

720 

772

754 

754 

816 

807 

834

834 

861 

946 

825 

798

798 

798 

798 

880 

1,460

1,770 

1,260 

1,690 

f 1,080 

f 1,080

f 1,000 

700 

500 

600 

650 

fl,840

Minimum

2.4

6.1 

34

2.4

36 

32 

253 

506 

300 

370 

500 

740 

210

2.4

sec. -ft.;

Aug.

750 

740 

846 

S37 

1,100

897 

846 

3,220 

1,620 

1,100

837 

788 

759 

740 

750

750 

759 

778 

817 

817

837 

897 

928 

897 

897

887 

887 

897 

897 

918 

908

Mean

4.85' 

35.6 

56.5

120

131 

83.9 

493 

563 

399 

562 

933 

955 

627

406

Aug. 8 (2 p

Sept.

897 

908 

908 

887 

928

949

876 

827 

962 

676

713 

713 

1,700 

779 

1,880

707 

f350 

f280 

f240 

f230

220 

215 

215 

210 

224

264 

264 

264 

264 

264

Runoff In 

acre-feet

29S 

2,120 

3,480

86,790

8,060 

4,660 

30,340 

33,510 

24,510 

33,460 

57,340 

58,710 

37,320

293,800

.m. ) 5,230

sec. -ft. ; Sept. 13 (5:30 p.m.) 4,500 sec. -ft. j Sept. 15 (5:30 p.m.) 5,610 sec. -ft.

Note.- No gage-height record Oct. 1-10, June 2-10, July 27-30; discharge computed on basis of adjoining good record and records for stations at Wlnkelman and on Florenee-Casa Grande Canal near 

Florence.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

939921 O - 51 - 25
376 GILA RIVER BASIN

Gila River at Ashurst-Hayden Dam, near Florence, Ariz.

Location - Water-stage recorder, lat. 33°06'00", long. 111° 14'50", In SW^-NW^- sec. 8, T. 

4 a., K. 11 E., at Ashurst-Hayden Dam, 9 miles northeast of Florence. Permanent crest 

of dam is 1,562.6 feet above mean sea level, datum of 1929. Crest height varied from 

1.0 to 1.75 feet higher during year by use of flashboards. Florence-Casa Grande Canal 

diverts at left end of dam for irrigation of lands under San Carlos project.

Drainage area.- 18,300 square miles.

Kecoras available.- July 1923 to September 1949 (head on crest of dam only). Records of 

monthly diversions to Florence-Casa Grande Canal available January 1928 to September

Extremes.- Maximum head on dam during year, 2.7 feet Aug. 8; no flow over dam greater 

part of year.

1923-49: Maximum head on dam, 8.0 feet Sept. 28, 1926; no flow over dam greater 

part of each year.

Remarks.- Records show daily mean head on dam and monthly diversions to Florence-Casa 

urande Canal. Mean head is often not representative of flow passing dam because of 

extensive sluicing. Diversion records are those at canal gaging station (water-stage 

recorder and Parshall flume) 2.6 miles downstream at China Wash adjusted for intervening sluicing and pumping (but not natural losses), to show water available at dam, 

except for water passed over dam or sluiced through dam during times of flood runoff. 

Many diversions above station for irrigation. Flow regulated at Coolidge Dam except 

for periods of tributary inflow below that dam. San Pedro River contributes major 

portion of unregulated inflow.

Cooperation.- Records collected and prepared in cooperation with Office of Indian Affairs.

Dally mean head, In feet, water year October 1948 to September 1949

Day

1

2

3

4

5

S

7

8

9

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0

0

0

0

0

0

0

0

.03

.02

.01

0

0

.01 (t)

M(t)0

0

0

0

0

0

0 (t)

t

t

t

t

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.04

0

0

0

0

0

0

0

0

.02 (t) (t)

_-

liar.

0.04

(t

(tt

(t

.03 ) .03

.01

D (t)

0

(t D

.03

0

0

(ti;

D

0

(

<

3

3

)

0

0 (t(t

.02

.05

.03

Apr.

0.03

(t)

0

o

0

0

0

0

o

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

May

0

0

o

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 (t) .01

.03

June

(t)

0

0

.01 (t)

.03 (t) .03

.01 (t)

.01

.02

.03

0

.01

0

.02

.06

.03

.14

0

0

0

0

0

.01

.02

(t)

.01

0

-

July

(t)

0

.12

(t)

.04

(t)

0

.02

0

.04

.10

.03

.11

0

0

0

0

0

.03

.57

.56

.55

.34

.IS

.08

.45

.10

0

0

0

.57

Aug.

0.06

0

.04

.06

.25

.12

.12

.94

.61

.27

.03

O

(t)

.01

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

0

0

M(t)

.06

.11

0

0

.16

0

.07

.03

.65

.16

.22

.25

0

0

0

0

(t)

0

0

0

0

.01

0 (t)0

0

-

t Plow over crest for short time, but mean head'for day was less than 0.01 foot. 

Note.- Water below crest during months left blank and on days shown by zero except Dec. 27. N 

ige-height record during December; probably small flow occurred Dec. 27 on basis of records for 

;ation at Kelvin and Plorence-Casa Grande Canal.

Monthly diversions to Plorence-Casa Orande Canal 

water year October 1948 to September 1949

Month

January ....................

September. ....................

Water year 1948-49. .........

Secondfoot - 

days

97.8 

632.9 

1,497

36,671.1

3,027 

1,736 

14,270 

16,556 

11,418 

14,237 

21,973 

23,956 

13,541

122,941.7

Discharge In second-feet

Maximum

42 

31 

263

861

371 

229 

671 

661 

535 

617 

1,050 

900 

854

1,050

Minimum

0 

0 

22

O

40 

27 

232 

496 

257 

306 

451 

679 

138

0

Mean

3.15 

21.1 

48.3

100

97.6 

62. Q 

460 

552 

368 

475 

709 

773 

451

337

Runoff 

In 

acre-feet

194 

1,260 

2,970

72,750

6,000 

3,440 

28,300 

32,840 

22,650 

28 , 240 

43,580 

47,520 

26,860

243 , 900

Water sluiced 

above flumS 

(acre-feet)*

0 

3.0

12

866

26 

11 

343 

497 

143 

195 

455 

791 

386

2,860

* Included In first four columns of table.
.OILA RIVER BASIN 377

Gila River near Laveen, Ariz.

Location.- Water-stage recorder above concrete diversion dam, lat. 33°15', long. 112°10', 

in SWpw£ sec. 16, T. 2 S., R. 2 E., on Gila River Indian Reservation, at highway bridge, 

la miles south of Komatke, 8 miles south of Laveen, and 8 miles upstream from Santa Cruz 

River. Datum of gage is 1,018.90 feet above mean sea level, datum of 1929, PhoenixPicacho supplementary adjustment of 1949. Auxiliary water-stage recorder on overflow 

channel located a quarter of a mile south at datum 0.23 foot lower.

Drainage area.- 20,200 square miles.

Heeords available.- January 1940 to September 1946, December 1947 to September 1949.

Extremes.- Maximum discharge during year, 1,250 second-feet Aug. 10; maximum gage height, 

6.70 feet Sept. 17; minimum daily discharge, 0.1 second-foot on many days.

1940-46, 1947-49: Maximum discharge, 11,900 second-feet Jan. 2, 1941 (gage height, 

9.33 feet); no flow at times during summers of 1940 and 1943.

Remarks.- Records good except those for period of no gage-height record and those for 

June 17-30 which are fair. Records include flow over dam, through sluice gate in dam, 

and in overflow channel, but do not include flow in Cooperative Canal, which diverts at 

dam (see table below). Overflow channel had flow July 25, Aug. 6, 7, 9-11, Sept. 16-18 

(total runoff, 221 acre-feet). Large diversion above station for irrigation. Flow 

partly regulated by storage in San Carlos Reservoir (see p. 371).

Discharge measurements of Cooperative Canal, 1948-49

Day

1948

Oct. 7

18

29

Nov. 8

30

Dec. 21

28

1949

Jan. 13

Dls charge 

(second- feet)

7.19

7.58

4.29

13.9

8.12

7.39

8.20

5.87

Day

1949

Feb. 7

25

Mar. 17

Apr. 6

26

May 19

June 8

21

30

Discharge 

(second- feet)

3.15

10.4

9.60

13.7

7.11

6.05

0

7.30

5.16

Day

1949

July 14

25

27

27

28

Aug. 1

1

2

7

Discharge 

(second-feet)

3.71

0

0

11.9

5.99

50

9.25

5

24.4

Day

1949

Aug. 8

12

30

Sept . 8

12

13

15

19

23

Discharge 

(second- feet)

15

1.88

6.88

0

10

5.30

6.50

0

10.9

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30

31

Oct.

aZ 

al 

a. 5 

a. 3 

a. 2

a.l 

.1 

.1 

.2 

.2

.2 

.1 

.1 

.1 

.2

.2

.3 

.6

1

1

2 

2 

2 

3 

3

3 

3 

4 

4 

5 

5

Nov.

5 

5 

6 

6 

6

6 

6 

7 

7 

8

8 

6 

2 

3 

3

3 

2

3 

2 

2

2 

2 

3 

3 

3

3 

3 

3 

3 

3

Dec.

3 

3 

3 

3 

3

3 

3 

3 

3 

3

4 

3 

4 

4 

4

4 

4 

4 

4 

4

5 

5 

6 

6 

6

6 

6 

6 

6 

6 

6

Jan.

6 

7 

7 

6 

6

6 

6 

6 

6 

6

7 

7 

7 

8 

8

8 

8 

8 

8 

9

9 

9 

9 

9 

9

9 

9 

9 

9 

9 

9

Feb.

9 

9 

9 

9 

10

10 

10 

9 

10 

10

10 

10 

10 

10 

10

10 

6 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

3 

3 

3 

3 

3

3 

3 

3 

3 

2

2 

2 

3 

3 

3

2 

2 

2 

2 

1

1 

1 

2 

9 

5

.7 

.7 

.6 

.6 

.6 

.6

Apr.

0.6 

.6 

.6 

3 

4

1

1 

1

1 

1

1 

1 

1 

1 

1

1 

1 

1 

2 

2

2 

2 

2 

3 

3

4 

4 

4 

6 

3

Secondfoot-days

44.5 

124 

133

3,162.4

239

194 

72.8 

58.8 

51.7 

75.2 

2,497.9 

2,458 

1,621.4

7,570.3

May

3 

3 

3 

2 

2

2 

2 

2 

2 

.8

.9 

1 

1- 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

2

2 

2 

2 

2 

3 

3

Maximum

5 

8 

6

635

9 

10 

9 

6 

3 

6 

703 

779 

512

779

June

3 

3 

4 

5 

5

6 

4 

6 

6 

6

6 

6 

6 

5 

.1

.1 

f.l 

f.8 

f2

f.l

f.l 

f.l 

f.l 

f.l 

f.l

f.l 

f.l 

f.l 

f.l 

f.l

Minimum

July

0.1 

.2 

.4 

.3 

.4

.5 

.5 

.6 

.9

1

2 

2 

2 

2 

2

3 

3 

3

4 

4

300 

356 

353 

703 

287

f!66 

f214 

f48 

f!6 

13 

10

0.1

fc

3

.1

6 

3 

.6 

.6 

.8 

.1 

.1 

3 

.'6

.1

Aug.

387 

37 

19 

16 

15

50 

62 

f25 

578 

779

350 

f36 

18 

12 

9

8

7 

6 

6 

5

3 

3 

3 

3 

3

3 

3 

3 

3 

3 

3

Mean

1.44 

«.l 

4.3

8.64

7.7 

6.9 

2.35

1.96 

1.67 

2.51 

80.6 

79.3 

54.0

20.7

Sept.

2 

2

1 

.8 

.6

2

6 

7 

8 

9

4 

2 

2 

334 

186

512 

451 

f46 

f22 

11

3 

2 

1

1 

1

1 

1

1 

1

1

Runoff In 

acre-feet

88 

246 

264

6,270

474 

385 

144 

117 

103 

149 

4,950 

4,880 

3,220

15,020

Peak discharge (base. 1,200 sec.-ft.).- Aug. 10 (10:30 a.m.) 1,250 sec.-ft.; Sept. 17 (5 a.m.) 

1,210 sec.-ft.

a No gage-height record; discharge computed on "basis of adjoining good record. 

f Computed from partly estimated gage heights.
378 GILA RIVER BASIN

Gila River below Gillespie Dam, Ariz.

Location.- Water-stage recorder above left end of Gillespie Dam, lat. 33°13'45", long. 

TOTTS'SO", in SE-fNEi;- sec. 28, T. 2 S., R. 5 W., 8 miles downstream from Hassayampa 

River. Average elevation of crest of dam is 753.46 feet above mean sea level, datum of 

1929, and 5 feet above datum of gage. Gillespie Canal diverts from left bank and Enterprise Canal diverts from right bank at Gillespie Dam.

Drainage area..- 49,600 square miles.

Keeords available.- August 1921 to September 1949 (river only). Records for Gillespie 

Canal May 1935 to September 1949; for Enterprise Canal June 1935 to September 1939 

(discharge measurements only) and October 1939 to September 1949.

Extremes.- Maximum discharge during year, 976 second-feet Aug. 7 (height over crest of 

dam, 0.42 foot); no flow most of year.

1921-49: Maximum discharge observed, 70,000 second-feet Dec. 28, 1923 (height over 

crest of dam, 6.0 feet), by computation of flow over dam; no flow for several periods 

in each year.

Maximum discharge known, 250,000 second-feet (estimated) in February 1891.

Remarks.- River records good except those for Sept. 20-27, which are poor. Records inelude flow over crest and through sluice gates of Gillespie Dam but do not include flow 

in Gillespie and Enterprise Canals which divert from river immediately above dam. Other 

diversions above station for irrigation. Flow of Gila River and tributaries above this 

station is regulated by San Carlos Reservoir on Gila River (capacity, 1,205,000 acrefeet) ; by a series of reservoirs on Salt River (capacity, 1,755,000 acre-feet); by 

Bartlett and Horseshoe Reservoirs on Verde River (capacity, 247,400 acre-feet); and by 

Lake Pleasant on Agua Fria River (capacity,-178,000 acre-feet).

For records of combined flow of Gila River, Gillespie Canal, and Enterprise Canal, 

and for monthly records of Gillespie Canal and Enterprise Canal, see tables on following page. Records of diversion by Gillespie Canal obtained through use of water-stage 

recorder in SW^NE^ sec. 28, T. 2S..R. 5W., 200 feet downstream from head gates. 

Records of diversion by Enterprise Canal obtained through use of water-stage recorder 

in SW^NEv sec. 28, T. 2 S., R. 5 W., 600 feet downstream from intake.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct. Nov. Dec. Jan.. Feb.

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

, Mar. Apr.

Secondfoot-days

0 

0 

0

472

0 

0 

0 

0 

0 

0 

186 

2,577 

2,559

5,322

May

Maximum

0 

0 

0

158

0 

0 

0 

0 

0 

0 

142 

642 

665

665

June July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

Q 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

44

142 

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

1 

642 

530 

347 

170

555 

306 

26 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0 

0 

0

1.3

0 

0 

0 

0 

0 

0 

6,0 

83.1 

85.3

14.6

. Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

39 

390 

90 

85 

40

280 

280 

555 

665 

55

20 

15 

15 

10 

10

5 

5 

0 

<O 

0

Runoff In 

acre-feet

0 

0 

0

936

0 

0 

0 

0 

0 

0 

369 

5,110 

5,080

10,560
GILA RIVER BASIN

Combined discharge, In second-feet, of G3J.a River below Glllesple Bam and of Glllespie and 

Enterprise Canals at Glllesple Dam, Ariz., water year October 1948 to September 1949

379

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

25 

24 

25 

25 

26

24 

24 

24 

25 

25

26 

26 

25 

23 

25

25 

26 

30 

29 

29

29 

30 

30 

31 

30

29 

30 

29 

30 

37 

36

Nov.

31 

30 

30 

30 

30

30 

32

35 

37 

43

43 

42 

44 

41 

47

41 

39 

41 

41 

44

53 

55 

55 

52 

51

51 

51 

51 

55 

55

Dec.

55 

56 

54 

56 

57

59 

69 

61 

62 

61

63 

65 

70 

60 

52

53 

58 

62 

60 

60

62 

64 

71 

79 

85

94 

97 

98 

94 

96 

96

Jan.

96 

103 

111 

108 

107

106 

103 

89 

73 

71

71 

75 

87 

86 

114

113 

93 

82 

83 

78

77 

76 

79 

90 

119

129 

136 

142 

135 

133 

134

Feb.

140 

140 

142 

135 

125

111

106 

107 

102 

95

84 

84 

84 

88 

85

85 

83 

83 

85 

82

83 

85 

86 

86 

86

86 

84 

85

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendaT year 1948

h.......................................

ter year 1948-49 .......................

Mar.

80 

83 

79 

79

81

83 

87 

87 

84 

75

76 

78 

78 

82 

84

85 

81 

81 

75 

75

77 

75 

70 

73 

72

75 

77 

79 

75 

77 

74

Apr.

80 

76 

89 

99 

82

84 

90 

77 

71 

72

71 

71 

67 

78 

84

67 

78 

89 

90

91

89 

79 

77 

73 

76

73 

69 

64 

59 

53

Secondfoot-clays

852 

1,280 

2,129

25,214

3,099 

2,727 

2,437 

2,318 

1,798 

1,127 

1,762 

4,890 

4,522

28,941

May

52 

55 

63 

64 

75

77 

77 

80 

60 

56

63 

59 

58 

57 

58

60 

50 

49 

47 

48

56 

43 

48 

47 

55

52 

52 

53

53 

58 

73

Maximum

37 

55 

98

334

142 

143 

87 

99 

80 

56 

303 

767 

817

817

June

56 

51 

42 

42 

44

41 

40 

40 

40 

39

36 

40 

46 

42 

47

46 

45 

36 

38 

47

34 

30 '28 

26 

26

26 

26 

26 

23 

24

July

24 

22 

23 

22 

33

26 

30 

35 

30 

28

27 

25 

26 

29 

20

20 

24 

22 

20 

26

22 

24 

58 

128 

200

303 

140 

128 

115 

77 

55

Minimum

23 

30 

52

22

71 

82 

70 

53 

43 

23 

20 

44 

40

20

Aug.

54 

87 

117 

92 

59

111 

767 

584 

413 

254

658 

447 

161 

122 

101

74 '61 

66 

59 

60

57 

58 

57 

50 

47

45 

47 

45 

45 

44 

48

Mean

27.5 

42.7 

68.7

68.9

100 

97.4 

78.6 

77.3 

58.0 

37.6 

56.8 

158 

151

79.3

Sept.

47 

48 

50 

50 

49

44 

44 

42 

42 

41

95 

416 

90 

85 

87

421 

424 

704 

817 

198

123 

77 

77

66 

63

60 

98 

76 

48 

40

Runoff in 

acre-feet

1,690 

2,540 

4,220

50,010

6,150 

5,410 

4,830 

4,600 

3,570 

2,240 

3,490 

9,700 

8,970

57,410

Monthly diversion, in second-feet, by Glllespie and Enterprise Canals at Gillesple Dam, Ariz., 

water year October 1948 to September 1949

Month

December ..............

Calendar year 1948..

March

September. ............

Water year 1948-49..

Glllesple Canal

Maximum

24 

42 

81

156

129 

125 

77 

85 

65 

45 

135 

120 

129

135

Minimum

14 

20 

42

12

62 

71

60 

44 

34 

15 

12 

36 

0

0

Mean

17.4 

30.4 

57.1

56.5

88.9 

84.4 

68.0 

66.2 

46.6 

27.4 

38.6 

62.6 

53.0

53.2

Runoff in 

acre-feet

1,070 

1,810 

3,510

41 , 000

5,460 

4,690 

4,180 

3,940 

2,860 

1,630 

2,380 

3,850 

3,150

38,530

Enterprise Canal

Maximum

13

16 

17

22

ie

21

11 

14 

15 

13 

27 

21 

23

27

Minimum

7.9

9.6 

7.0

4.6

8.2 

11 

9.3 

8.8 

8.5 

7.9 

7.6 

7.8 

0

0

Mean

10.2 

12.2 

11.6

11.1

11.1 

13.0 

10.5 

11.1 

11.4 

10.1 

12.2 

12.0 

12.4

11.5

Runoff in 

acre-feet

624 

726 

714

8,070

683 

722 

648 

659 

701 

603 

747 

739 

739

8,300

Gila River near Dome, Ariz.

Location - Water-stage recorder, lat. 32°45'40", long. 114°25'10", in SWi sec. 4, T. 8 S.,

K. 21 W., at highway bridge 3 miles west of Dome and 12 miles upstream from mouth.

Datum of gage is 148.18 feet above mean sea level, datum of 1929. 

Drainage area.- 58,100 square miles (includes 344 square miles in Aubrey Valley Playa,

a closed basin, and excludes all other closed basins). 

Records available.- May 1929 to September 1949. January to December 1903 at site 12 miles

downstream.January 1904 to December 1906, at site 4 miles upstream. January 1907 to

April 1929 (monthly discharge only) published in Water-Supply Papers 918 and 1049. 

Extremes.- No flow during year.

T9Z9-49: Maximum discharge, 20,700 second-feet Feb. 15, 1932 (gage height, 16.75

feet); no flow during part or all of each year.

Maximum daily discharge, 200,000 second-feet (roughly estimated) Jan. 22, 1916. 

Remarks.- No flow during calendar year 1948 and water year ending Sept. 30, 1949. Diversions above station for irrigation. Flow above station regulated by reservoirs at

and above Gillespie Dam (see'p. 376). 

Revisions (water years).- W 918: 1905.
380 GILA RIVER BASIN 

Sunset canal near Vlrden, N. Hex.

Location.- Water-stage recorder and 6-foot concrete Parshall flume, lat 32°39'20" 

long. 108°56'00", In NW£ sec. 17, T. 19 S. a R. 20 W., 4.5 miles southeast of 

Vlrden.

Records available.- October 1914 to September 1915, July 1922 to September 1931, 

ana January 1939 to September 1949 In reports of Geological Survey. January 

1936 to December 1938 and May 1942 to September 1949 in files of Glla Water 

Commissioner, appointed by the U. S. District Court for Arizona.

Extremes.- Maximum daily discharge during year, 46 second-feet Apr. 18, May 3: no 

flow at times.

1939-49: Maximum daily discharge, 58 second-feet Apr. 12, 13, 1940; no flow 

at times.

Remarks.- Records good above 6 second-feet and fair below. Canal diverts from right 

EanTTof Gila River In SW^NWi sec. 21, T. 19 S., R. 20 W., for Irrigation In Virden 

Valley. No diversions between intake and station.

Discharge, In second-feet, water year October 1948 to September 194d

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.3 

2.8 

0 

3.7 

4.8

3.7 

5.8 

6.5 

6.2 

6.2

6.2 

6.0 

6.0 

6.2 

7.0

4.8 

5.9

0 

0 

0

6.5 

9.0 

9.0 

8.7 

8.7

9.8 

8.7 

9.0 

9.0 

7.5 

0

Nov.

0 

0 

0 

0 

6.4

6.7 

5.3 

5.3

4.0 

0

0 

0

0 

0 

0

1.7 

2.8 

2.7 

2.7 

2.7

2.7 

6.3 

9.2 

9.2 

9.0

9.0 

13 

14 

11 

11

Dec.

9.8 

10 

6.7 

5.3 

5.3

8.7 

10 

7.0 

0 

0

0 

0 

2.9 

9.2 

9.0

8.7 

9.0 

9.0 

9.0 

12

14 

14 

9.8 

0 

O

0 

8.8 

15 

25 

34 

25

Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

14 

31 

39

40 

42 

36 

43 

45

44 

45 

46 

41 

40

41 

41 

24 

9.4 

36

45 

33 

31 

31 

19

Secondfoot-days

168.9 

134.7 

277.2

2,073.7

O 

0 

O 

816.4 

840 

566 

767 

524.5 

626.8

4,721.5

May

0 

31 

46 

35 

36

30 

30 

20 

17 

17

15 

22 

25 

30 

18

18 

22 

24 

19 

26

35 

36 

36 

36 

32

30 

30 

32 

31 

31 

30

Maximum

9.0 

14 

34

40

O 

0

o

46 

46 

29 

40 

37 

36

46

June

29 

27 

26 

26 

25

25 

25 

23 

20 

18

18 

15 

14 

16 

15

16 

17 

16 

18 

17

16 

16 

15 

15 

15

17 

17 

17 

17 

15

July

14 

13 

12 

12 

14

16 

16 

15 

17 

22

26 

27 

30 

32 

35

40 

37 

28 

19 

18

23 

37 

26 

25 

33

31 

30 

28 

29 

32 

30

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

14 

12 

3.7 

0

0

Aug.

22 

17 

27 

37 

35

33 

27 

11 

5.9 

17

17 

27 

29 

29 

27

18 

15 

16 

16 

14

14 

13 

12 

9.8 

7.4

5.5 

3.7 

5.3 

6.0 

3.7 

4.2

Mean

5.45 

4.49 

8.94

5.67

0 

0 

0 

27. Z 

27.1 

18.9 

24.7 

16.9 

20.9

12.9

Sept.

5.3 

7.0 

12 

24 

26

25 

26 

20 

30 

34

36 

32 

29 

22 

20

6.4 

0 

0 

8.1 

22

26 

25 

25 

25 

27

27 

26 

25 

18 

18

Runoff In 

acre-feet

335 

267 

550

4,110

0 

0 

0 

,620 

,670 

,120 

,520 

,040 

,240

9,360
GILA RIVER BASIN 381

Sunset Canal above New Mexico-Arizona State line, near Virden, N. Mex.

on.- Water-stage recorder and 3-foot concrete Parshall flume, lat. 32°41 l , long. 

TJF 1 , in NE£SE£ see. 31. T. 18 S. , R. 21 W. , a quarter of a mile east of New

Locatior rusT

Mexico-Arizona State line and 2.5 miles west of Virden. 

Records available.- February 1939 to September 1949.

Extremes.- Maximum daily discharge during year, 14 second-feet Apr. 25; no flow at 

times.

1939-49: Maximum daily discharge, 17 second-feet Sept. 16, 1939; no flow at 

times.

Remarks.- Records fair except those for periods of no gage-height record, which are 

poor. Canal diverts from right bank of Gila River in SW^-HWf sec. 21, T. 19 S., 

R. 20 W., for irrigation in Virden Valley. Many diversions above and below station 

for irrigation.

Discharge, in seoond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0

0

0 

0 

4.0 

3.7 

.2

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

1.2 

6.3

3.7 

1.4

0 

0 

0 

0 

0 

0

Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

1.0 

1.2

1.1 

.6 

2.6

5.0 

1.6

0 

0 

0 

0 

0

Deo.

0 

0 

0 

0 

0

0 

1.3 

4.1 

.8 

0

0 

0 

0 

0 

1.3

6.1 

5.8 

4.4

.1 

0

0

0 

0

0

o

0 

0 

0 

0 

0 

0

Jan. Feb.

Month

Oo to 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194£

ter year 1948-49 .......................

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

1.4 

6.7 

8,3

8.8 

8.5 

8.3 

5.2

0

.1 

.1 

7.3 

4.5 

2.5

1.1

.4 

.6 

2.4 

14

12 

11 

10 

3.6 

.2

Secondfoot-days

20.5 

13.1 

23.9

295.1

0 

0 

0 

117.0 

146.7 

62.4 

126.8 

80.2 

89.1

679.7

May

1.1 

4.1 

12 

11 

3.0

2.5 

3.0 

1.5 

1.9 

3.2

6.6 

8.3 

12 

8.8 

6.6

2.4 

2.8 

2.3 

2.5 

2.1

1.4 

7.0 

9.6 

7.9

5.0

1.1 

.2 

0 

.6 

6.7 

9.5

Maximum

6.3 

5.0 

6.1

9.3

0 

0 

0 

14 

12 

7.5 

13 

9.8 

9.1

14

June

6.5 

2.4 

0

0 

0

1.5 

7.0 

4.7 

.9 

.5

0 

0 

0 

0 

0

3.6 

6.0 

5.0 

3.6 

.1

.6

0 

.2

.2

0

1.0 

7.5 

6.7 

3.2 

1.2

July

0 

.4

0 

0 

0

6.0 

7.0 

6.0 

2.9 

.1

0 

.4 

2.2 

8.5 

8.6

8.2 

1.7 

.9 

.7 

.6

5.4 

11 

9.8 

2.9 

.9

.5 

1.7 

13 

10 

12 

5.4

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

aO.5 

aO 

aO 

2.6 

9.3

9.8 

9.1 

3.7 

.2 

4.2

.2 

1.9 

5.7 

6.4 

5.2

a2 

a.l

aO 

aO 

0

3.0 

4.3 

5.8 

a3.5 

a. 5

aO 

0 

2.1 

.1 

0 

0

Mean

0.66 

.44 

.77

.81

0 

0 

0 

3,9 

4.73 

2.08 

4.09 

2.59 

2.97

1.86

Sept.

0 

.3 

2.2 

1.6 

6.7

9.1 

3.1 

.3 

.6 

.5

2.9 

8.1 

6.3 

1.6 

1.4

2.5 

1.1 

0 

.8 

3.0

5.5

5 

.5 

.4 

2.7

6.0 

7.3 

4.1 

2.5 

2.8

Runoff in 

acre -feet

41 

26 

47

586

0 

0 

0 

232 

291 

124 

252 

159 

177

1,350

a No gage-height record; discharge computed on basis of available trace and records for stations 

at head and »t wasteway.
382 GILA RIVER BASIN

Sunset Canal wasteway near Virden, N. Mex.

Location.- Water-stage recorder and 3-foot concrete Parshall flume, lat. 32°41'40", 

 long. 109°02'55", in NW£SE£ sec. 31, T. 18 S., R. 21 W., Just below intake, at New 

Mexico-Arizona State line, and 2f miles west of Virden.

Records available.- February 1939 to September 1949.

Extremes.- Maximum daily discharge during year, 0.3 second-foot Sept. 27; no flow most 

or year.

1939-49: Maximum daily discharge, 11 second-feet Feb. 23, 1940; no flow at times.

Remarks.- Records fair. Discharge represents waste from Sunset Canal to Gila River by 

way of Carlyle Canyon. Intake of wasteway is between State line and station on Sunset Canal above State line. ,^

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

.1 

aO 

aO

ao 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec.

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

Jan. Feb.

lendar year 1948 

ary

ter year 1946-49 ............... ........

Mar. Apr.

Secondfoot-days

0.1 

0 

0

7.5

0 

0 

0 

0 

.3 

.4 

.1 

0 

1.2

2.1

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

0

.1

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.1

.1

Maximum

0.1 

0 

0

4.0

0 

0 

0 

0 

.1 

.1 

.1 

0 

.3

.3

June

0.1 

.1 

0 

0 

0

0

.1

0 

0 

0

0 

6

0 

0 

0

0

.1

0 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

July

'$ 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

0 

0 

0 

0

o

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

0 

0 

0

0 

0 

0 

0 

0 

0

Aug.

Mean

! 0.003'' 0 ~ " 

0

.02

0 

0 

0 

0 

.01 

.01 

.003 

0 

.04

.01

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.1

.1 

.1.0. 

.1

0 

0 

0 

0

.2

.1 

0 

0 

0

0 

.3

.1 

0 

0

Runoff in 

acre-feet

0.2 

0 

0

15.2

0 

0 

0 

0 

.6 

.6 

.2 

0 

2.4

4.2

a Ho gage-height record Oct. 9-11; discharge estimated.
GILA RIVER BASIN 

Moddle Canal near Virden, N. Mex.

383

Location.- Water-stage recorder and 6-foot concrete Parshall flume, lat. 32°40'30", long. 

 !U8 u b9 l 30", in-NE? sec. 10, T. 19 S., R. 2LW., 1 mile downstream from Intake and 1 mile 

southeast of Virden.

Records avail 

January

-lau-ie. - October 1914 to September 1915, July 192S to September 1931, and 

. 939 to September 1949 in reports of Geological Survey. January 1936 to December 1938 and May 1942 to September 1949 i_n files of office of Gila Water Commissioner, appointed by U. S. District Court <pP*jtflzona.

Extremes.- Maximum daily discharge during year, 40 second-feet Jan. 14; no flow at times. 

 rggg-49: Maximum daily discharge, 70 second-feet (estimated) Sept. 30, 1941; no 

flow at times.

Remarks.- Records good except th^se for periods of no gage-height record, which are fair. 

Canal diverts from left bank of Gila River in NWtSE? sec. 11, T. 19 S., R. 21 W., for 

irrigation in Virden Valley including lands formerly under the Shriver Canal which is 

no longer in existence. Water used by Duncan Canal is now also received from Moddle 

Canal. No diversions between, intake and station.

Discharge, In second-feet, water year October 1S48 to September 1949

Day

1 

2 

3 

4

5

6

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.1 

6.9 

6.9 

6.6 

6.4

6.1 

6.1 

6.4 

5.9 

5.6

5.4 

5.2 

4.9 

4.9

6.9

6.4 

6.1 

3.2

0 

0

2.9 

4.9 

4.9 

4.7 

4.7

4.9 

4.9 

5.4 

5.4 

5.6 

6.4

Nov.

5.9 

5.6 

5.2 

4.9 

4.7

4.7 

4.7 

4.5 

4.5 

4.3

4.3 

4.3 

4.5 

4.5 

4.5

4.5 

4.5 

4.3 

6.9 

8.8

8.2 

7.9 

8.2 

8.2 

8.2

8.5 

8.5 

8.8 

8.8 

8.8

Dec.

8.5 

8.2 

8.5 

8.8 

9.0

9.0 

11 

11 

12 

12

12 

12 

12 

11 

13

14 

14 

13 

14 

14

14 

15 

17 

20 

19

19 

18 

17 

14 

9.3 

3.9

Jan.

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

40 

10

0

0 

0 

0 

0

0 

0 

0 

0 

2.6

5.8 

1.4

0 

0 

0 

0

Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1943

ter year 1948-49 .......................

Mar.

0

0 

0 

0 

0

0 

aO 

aO 

aO 

a5

aO 

aO 

aO 

aO 

aO

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

13 

30 

26 

28 

29

26 

24 

a26 

a28 

27

26 

a22 

a26 

a26 

a24

a20 

19 

23 

28 

27

27 

28 

30 

34 

35

34 

35 

36 

36 

36

Secondfoot-days

161.7 

184.2 

393.2

1,490.3

59.8 

0 

5 

829 

746.1 

277.2 

365.8 

255.0 

310.9

3,587.9

May

36 

32 

33

34 

32

31 

26 

26 

22 

19

7.1 

18 

29 

29 

17

14 

19 

22 

25 

21

18 

17 

19 

20 

22

27 

26 

26 

27 

26 

26

Maximum

7.1 

8.8 

20

25

40 

0 

5 

36 

36 

26 

30 

24 

28

40

June

25 

26 

25 

25 

25

25 

24 

13 

5-. 6 

5.9

5.6 

5.2 

5.9 

5.6 

4.7

4.0 

4.3 

5.9 

4.9 

2.8

3.4 

5.9 

a2 

0 

1.5

3.6 

4.0 

4.5 

3.9

0

Minimum

July

0 

0 

0

o

0

1.0 

3.3 

5.9 

4.5 

6.8

15 

18 

13 

14 

22

26 

28 

19 

14 

9.3

14

28 

30 

18 

.1

.2 

2.2

8.5 

15 

24 

26

0 

4.3 

3.9

0

0 

0 

0 

13 

7.1 

0 

0 

0 

0

0

Aug.

23 

7.9 

23 

21 

16

13 

14 

8.7 

.9 

.4

11 

17 

24 

24 

15

5.9 

4.3

3.4 

3.6 

4.4

2.8 

2.4 

0 

0

.4

1.8 

1.6 

1.5 

. 1.5 

1.3 

1.2

Mean

5.22

6.14 

12.7

4.07

1.93 

0 

.16 

27.6 

24.1 

9.24 

11.8 

8.23 

10.4

9.83

Sept.

1.2 

.9 

.8 

12 

10

7.4 

7.4 

7.7 

15 

17

27 

23 

28 

26 

11

0 

7.2 

6.4 

2.5 

.9

5.6 

1.2

6.5 

10 

9.9

17 

21 

14 

7.9 

6.4

Runoff in 

acre-feet

321 

365 

780

2,960

119 

O 

9.9 

1,640 

1,480 

550 

726 

506 

617

7,110

a No gage-height record; discharge computed on basis of figures furnished by Glla Water Commissioner 

and a study of the trace.
384 GILA RIVER BASIN

Moddle Canal at New Mexico-Arizona State line, near Virden, H. Hex.

Location.- Water-stage recorder and 4-foot concrete Parshall flume, lat. 32°41', long.

109"Uy' , in NE^SE? sec. 6, T. 19 S., R.'2l'W. , 500 feet upstream from New Mexico-Arizona

State line and 2f miles west of Virden.

Records available.- February 1939 to September 1949.

Extremes.- Maximum daily discharge during year, 30 second-feet Apr. 30, May 1; no flow 

at times.

1939-49: Maximum daily discharge, 34 second-feet Aug. 13, 1944; no flow at times.

Remarks.- Records fair except those for periods of doubtful or no eage-height record,which 

are poor. Canal diverts fro-n left bank of Gila River in W^SE^T sec. 11. T. 19 S., R. 

21 W., for irrigation in Virden Valley. Many diversions above and below station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.3 

5.5 

5.6 

4.0 

2.9

3.7 

5.6 

5.8 

d5.5 

5.3

5.0 

5.1 

4.6 

d4.5 

d6.5

d6.0 

dS.O

32.0 

0 

0

.4 

1.8 

2.0 

1.9 

.8

3.0 

4.0 

3.7 

5.0 

5.3 

6.0

Nov.

5.6 

4.8 

3.5 

4.0 

a4.0

d3.6 

d3.5 

d3.5 

d3.0 

2.5

2.6 

d2.5 

d2.5 

d2.5

d2.5

d2.5 

d2.5 

2.2 

2.6 

6.6

8.8 

7.6 

5.8 

5.8 

5.8

7.0 

8.4 

8.4 

7.3 

5.1

Dec.

5.1 

6.8 

7.8 

8.0 

8.4

9.3 

9.9 

11 

12 

12

9.7 

7.4 

9.5 

7.8 

6.8

9.7 

9.0 

7.6 

7.4 

9.5

9.7 

10 

13 

18 

d!5

d!5

d!4 

12 

d9 

d6

2.9

Jan.

ao 

aO 

aO 

0 

0

0 

0 

o 

0 

0

0 

0 

0 

12 

9.7

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

Month

Ooto 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Ma v

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

1.4

.1 

0 

U 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

t+r.

1.6 

9.4 

13 

14 

16

17

14 

18 

14 

U

17 

15 

19 

21 

£1

18 

15 

16

21 

25

24

23 

25 

28 

29

27

26 

26 

30

Secondroot-days

121.8 

137.0 

299.3

1,148.0

21.7 

0 

1.5 

585.0 

559 

188.5 

291.6 

188.6 

225.0

2,619.0

May

30 

£8 

22 

28 

£6

25 

24 

19 

12 

dlO

d4 

12 

d24 

d25 

d!5

12 

19 

16 

20 

13

12 

11 

11 

12 

14

21 

23 

16 

23

20 

12

Maximum

6.5 

8.8

18

24

12 

0 

1.4 

30 

30 

23 

28 

21 

24

30

June

15 

21 

19 

21

21

d23 

d21 

d!3 

.2 

.7

1.1 

4.1 

4.1 

4 

d3.5

d3.5

3.1 

d2.5 

32.5

1.2

dl.O

dO 

dO 

0 

d 0

dO 

dl 

dl 

dl 

dO

July

c

du

ao

0

0

.2

1.3 

2.7 

4.3 

6.2

8.2 

17

12 

12 

21

23 

23 

18 

12 

6.2

8.0 

24 

28 

17 

do

dO 

d.5 

d3 

dlO 

die 

d!8

Minimum

0 

2.2 

2.9

0

o 1

0 

0 

1.6 

4 

0 

0 

0 

0

0

Aug.

dl'6 

5.6 

17 

d!5 

d!4

d!2 

d!2 

d6 

dO 

dO

dlO 

d!8 

21 

13 

7.8

5.0 

3.4

d2 

d2 

d2.5

2.3 

3.8 

d.2

dO 

dO

dO 

dO 

do 

dO 

dO 

dO

Mean

3.93 

457 

9.65

3.14

.7 

0 

.05 

19.5 

18.0 

6.28 

9.41 

6.08 

7.50

7.18

Sept.

d 0

d 0 

d 0 

9.1 

j.1

8.0 

7.2 

7.0 

13 

13

22 

20 

d24 

d22 

d8

O 

0 

0 

.4 

.1

4.5 

.1 

2.3 

3.5 

3.5

9.0 

17 

11 

4.6 

4.7

Runoff In 

acre-feet

242

272 

594

2,280

43.0 

0 

3.0 

1,160 

1,110 

374 

578 

374 

446

5,200

a No gage-height record; discharge computed on basis of State watermaster's notes.

d Doubtful gage-height record due to effect of pumping of ground water into canal below State line; 

discharge computed on basis of records for station at head, notes of Geological Survey resident 

engineer, and State watermaster.
GILA RIVER BASIN 

Valley Canal near Virden, N. Hex.

385

Location.- Water-stage recorder and 4-foot concrete Parshall flume, lat. 32°41'35", long. 

109*02'20", in SWJSW£ sec. 32, T. 18 S., R. 21 W., H miles downstream from intake and 

2j miles west of Virden.

Records available.- October 1914 to September 1915, July 1923 to September 1931, and May 

1939 to December 1949 (discontinued) in reports of Geological Survey. January 1936 to 

September 1946 (at site half a mile downstream and below wasteways) in files of office 

of Gila Water Commissioner, appointed by U. S. District Court for Arizona; records not 

comparable.

Extremes.- Maximum daily discharge during period October 1948 to December 1949, 48 seeondreet Jan. 14, 15; no flow at times.

1939-49: Maximum daily discharge, 62 second-feet (estimated) Scot. 29, 1941; no flow 

at times.

Remarks.- Records good except those for periods of no gage-height record, which are fair, 

canal diverts from right bank of Gila River in NE^-NW^' sec. 4, T. 19 S., R. 21 W. , New 

Mexico, for irrigation in Euncan Valley in Arizona. There are two wgsteways between 

this gaging station and the point of use. For annual net diversion see cage 364. 

Discharge,

Day

1

Z

3

4

5

e

-7

8

9

10

11

12

13

14

15

IE

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

0

0

4.1

12

14

11

3.3

.1

.1

.4

0

0

5.5

21

12

14

2.2

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

0

 o

0

0 -

7.3

IS

16

16

16

16

16

7.5

0

4.9

9.9

9.1

7.6

4.9

4.0

6.8

7.3

9.9

14

IS

IS

15

-

Dec.

15

15

14

14

8.1

0

0

4.1

13

13

14

14

14

13

13

13

14

14

14

14

15

15

15

19

23

17

9.9

19

33

12

aO

Jan.

aO

aO

aO

0

0

.6

4.1

7.8

11

9.2

0

0

6.2

48

48

16

0

0

0

0

0

0

0

2.8

.1

0

4.2

1.8

.4

0

0

Feb.

0

0

0

0

1.4

6.2

6.1

5.8

5.4

5.4

5.4

5.6

10

16

14

11

9.6

9.4

10

11

12

12

13

15

17

19

18

16

_

-

Mar.

15

13

12

12

7.5

3.2

5.5

25

37

3.4

11

14

12

11

9.1

6.8

6.7

3.2

0

0

14

17

14

12

7.5

7.2

12

13

18

11

16

Apr.

0

2.2

14

19

19

24

27

28

28

29

29

28

26

25

24

26

26

26

25

24

24

21

22

22

22

21

23

25

24

23

May

22

20

19

19

18

17

15

5.8

0

2.6

10

8.3

8.9

13

14

14

12

11

11

10

a8.5

a8. 5

alO

a!2

a!4

16

17

20

21

23

23

June

£3

22

21

22

21

19

18

19

19

20

20

20

19

19

18

16

15

15

17

13

8.8

11

0

0

5.3

13

13

12

12

10

July

0.1

0

0

0

0

0

0

1.3

3.3

10

20

14

24

22

19

26

23

23

25

21

19

18

22

18

13

13

15

20

18

17

17

Aug.

19

22

22

19

19

18

18

19

17

17

16

14

12

10

13

17

15

14

9.1

6.0

4.0

2.4

0

1.7

5.2

3.3

2.6

.5

.1

.1

.1

Sept.

0

0

0

5.7

16

16

15

20

25

23

26

23

25

27

21

18

9.2

4.8

7.8

10

14

11

8.4

6.8

6.1

4.4

8,3

11

12

18

a No gage-height record; discharge computed on basis of recorded range in stage and engineer's 

and observer's notes.

Day

1

3

6

Oct.

16

16

17

18

19

19

£1

19

Nov.

21

19

18

16

17

19

19

19

Dec.

0

0

0

0

5.4

9.4

9.6

8.6

Day

9

10

11

12

13

14

15

16

Oct.

17

17

19

20 ,

19

21

25

27

Nov.

22

23

24

24

11

5.4

12

13

Dec.

8.1

9.9

13

12

13

12

11

10

Day

17

18

19

20

21

22

23

24

Oct.

23

21

13

3.5

7.8

9.9

12

17

Nov.

14

14

14

14

17

17

17

17

Dec.

9.1

7.5

7.3

10

11

12

12

13

Day

25

26

27

28

29

30

31

Oct.

17

17

18

19

19

19

20

Nov.

12

aO

aO

aO

aO

0

Dec.

14

14

14

12

12

11

11

a No gage-height record; discharge computed on basis of available fragments of gage-height 

record and observer's notes.

Monthly discharge, in ^econd-feet, 1948-49

Month

Mftv . . .......

September. ..................................

Water year 1948-49 .......................

December. ...................................

Calendar year 1949. ......................

Secondroot-days

99.7

233.2

411.1

254 3

336.1

392.5

4,218.8

546.2

418.4

291.9

4,731.3

Maximum

21

16

33

48

29

26

22

27

48

27

24

14

48

Minimum

O

0

0

0

0

0

0

0

0

0

0

35

0

0

0

Mean

3.22

7.77

13.3

5.17

22.5

13.6

10.8

13.1

11.6

17.6

13.9

9.42

13.0

Runoff in 

acre-feet

198

463

815

318

504

692

1,340

915

836

667

779

8,370

1,080

830

579

9,380
386 GILA RIVER BASIN 

San Francisco River near Glenwood, N. Mex.

Location.- Water-stage recorder, lat. 33 0 15'05", long 108°52'40", In NE^NW^ sec. 23, T. 12 

3., H. 20 W., a quarter of a mile upstream from hot springs and 6 miles south of Glenwood. Datum of gage is 4,522.06 feet above mean sea level, datura of 1929.

Drainage area.- 1,660 square miles.

Records available.- October 1930 to February 1934 (at site 4g miles upstream) and February 

1934 to September 1949 in reports of Geological Survey. October 1927 to December 1931 

(at site 4| miles upstream) in reports of State engineer.

Average discharge.- 20 years (1928-31,1932-49), 67.4 second-feet.

Extreme^.- Maximum discharge during year, 7,800 second-feet, Jan. 13 (gage height, 10.74 

feet), by slope-area method; minimum daily, 9.1 second-feet Aug. 31, Sept. 2.

1930-49: Maximum discharge, that of Jan. 13, 1949; minimum daily, 7.7 second-feet 

June 21, 1934.

Remarks.- Reiords good except those for periods of no gage-height record and those above 

1,000 second-feet, which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12

14 

12 

12 

10

11 

11 

11 

9.5 

9.5

12 

14 

16 

16 

13

12 

13 

15 

26 

18

17 

18 

18 

18 

18

18 

17 

17 

19 

24 

74

Nov.

65 

40 

31 

29 

26

25 

25 

24 

24 

22

23 

24 

24 

25 

25

26 

25 

24 

24 

23

25 

24 

24 

24 

24

23 

22

17 

a!5 

a!2

Dec.

19 

20 

21 

23 

22

18 

19 

21 

23 

21

22 

65 

25 

26 

29

28 

24 

24 

24 

24

23 

26 

149 

196 

67

126 

462 

782 

188

90 

61

Jan.

53 

46 

42 

28 

21

22 

22 

32 

56 

144

220 

292 

4,290 

3,050 

744

301 

118 

67 

51 

76

107 

118 

480 

1,240 

604

585 

310 

220 

169 

131 

109

Feb.

90 

88 

81 

76 

72

67 

65 

63 

61 

54

49 

51 

58 

63 

56

49 

46 

49 

58 90'

118 

151 

216 

370 

470

455 

400 

370

Month

Oc to 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

345 

292 

288 

345 

515

615 

1,250 

2,370 

al.OOO 

3600

a 550 

a 500 

a 450 

a 400 

a 400

3500 

625 

610 

585 

625

575 

471 

411 

342 

302

283 

253 

236 

246 

232 

211

Apr.

208 

204 

204 

211 

194

181 

194 

218 

239 

261

261 

257 

268 

291 

299

302 

291 

272 

253 

239

223 

222 

225 

238 

228

250 

242 

232 

228 

228

Secondfoot-days

525 

764 

2,628

17,681.5

13,748 

3,836 

16,427 

7,155 

3,185 

1,134 

1,962 

1,838.1 

1,120.1

54,322.2

Peak discharge (base, 8OO sec. -ft).- Dec. 28 (12:3O a.n

7,800 sec. -ft.; Jan 24 (2:30 a.m.) 1,710 sec. -ft.; Mar. £ 

(4:45 p.m.) 2,370 sec. -ft. ; July 24 (3:4O p.m.) 1,440 sec 

a No gage-height record; discharge computed on basis oi 

and records for station at Clifton.

May

201 

175 

172 

178 

162

144 

124 

113 

105 

100

124 

127 

121 

105 

102

92

a80 

a70 

60 

56

53 

52 

56 

62 

67

77 

 90 

97 

90 

a70 

a60

Maximum

74 

65 

782 .

782

4,290 

470 

2,370 

302 

201 

52 

223 

184 

67

4,290

 June

a52 

46 

42 

42 

46

46 

41 

40 

39 

41

44 

45 

42 

42 

40

39 

37 

40 

39

36

35 

32 

31 

29 

29

30 

29 

28 

26 

26

July

28 

29

49 

35 

33

32 

31 

30 

42 

44

42 

45 

182 

105 

72

67 

63 

67 

85 

"alOO

223 

74 

84 

116 

81

a50

a40 

a3(3 

28 

26 

29

Aug.

27 

95 

157 

131 

105

65 

147 

184 

135 

113

102 

74 

58 

47 

41

35 

32 

30 

27 

26

25 

23 

24 

21 

19

19 

18 

21 

16 

12 

9JL

Minimum Mean

9.5 16.9 

12 25.5 

18 84.8

8.0 48.3

21 443 

46 137 

211 530 

181 238 

52 103 

26 37.8 

26 63.3 

9.1 59.3 

9.1 37.3

9.1 149

Sept.

12 

9.1 

61 

67 

34

32 

39 

30 

46 

40

56 

52 

53 

44 

50

44 

37 

32 

32 

30

47 

32 

31 

29 

30

39 

28 

28 

27 

29

Runoff In 

acre-feet

1,040 

1,520 

5,210

35,070

27,270 

7,610 

32,580 

14,190 

6,320 

2,250 

3,890 

3,650 

2.22O

107,800

.) 1,490 sec. -ft. j Jan. 13 (2:40 p.m.) 

(2:15 a.m.) 3,010 sec. -ft.; July 21 

.-ft.; Aug. 2 (10:30 p.m.) 875 sec. -ft. 

available recorder trace, weather records,
GILA RIVER BASIN 387

San Francisco River at Clifton, Arlz.

Location.- Water-stage recorder, lat. 33°03'00", long. 109°17'45", in SW^SE^ sec. 30, 

T. 4 S., R. 30 E., at Railroad Boulevard Bridge at Clifton, 8j miles uostream from 

mouth. Datum of gage is 3,431.67 feet above mean sea level, datum of 1929.

Drainage area.- 2,790 square miles.

Records available.- July 1927 to October 1933, May 1935 to September 1949. October 1910 

to July 191B (fragmentary) at several sites, none of which was more than 2j miles upstream.

Average discharge.- 23 years (1913-15, 1916-17, 1927-33, 1935-49), 209 second-feet.

Extremes.- Maximum discharge during year, 24,100 second-feet Jan. 13 (gage height, 15.4 

reet); minimum, 18 second-feet Oct. 12.

1927-49: Maximum discharge, that of Jan. 13, 1949; minimum, 8 second-feet June 18, 

19, 1939.

A peak discharge of 90,000 second-feet occurred Jan. 19, 1916 (gage height, 16.8 

feet, from floodmark, at gage 60 feet upstream from present gage) by slope-area measurement, computed In 1940 on basis of data compiled from 1916 records. A greater flood 

occurred Oct. 14, 1916.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are fair. Diversions above station for irrigation, mining, and municipal uses.

Revisions (water years).- W 1049: 1911, 1913-15, 1917.

Discharge, In second- feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IB 

19 

20

21 

22 

23 

24

25

26 

27 

2B 

29 

30 

31

Oct.

28 

27 

30 

29 

29

30 

27 

26 

27 

22

21 

19 

24 

25 

29

26 

24 

28 

55 

43

41 

38 

38

37 

37

38 

39 

41 

42 

44 

86

Nov.

110 

86 

63 

55 

50

48 

47 

47 

46 

44

44 

46 

47 

47 

47

47 

48 

47 

47 

47

47 

48 

49 

49 

49

46

SO 

49 

44 

43

Dec.

41 

42 

44 

44 

44

44 

41 

42 

44 

46

46 

46 

47 

46 

52

52 

54 

54 

54 

55

54 

58 

218 

395 

186

346 

728 

1,910 

550 

253 

182

Jan.

159 

145 

155 

114 

81

80 

84 

84 

287 

624

547 

759 

12,400 

9,880 

2,720

f 1,590 

f 1,020 

735 

650 

590

590 

780 

1,450 

3,560 

2,230

f2,080 

fl,260 

825 

612 

458 

413

Feb.

362 

333 

310 

286 

270

250 

231 

221 

212 

201

190 

190 

192 

205

eoe

197 

190 

195 

224 

270

333 

403 

512 

690 

895

970 

848 

780

Month

Octo 

Hove

Dece

ca

Janu 

Pabr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

 ber .....

 her. ...................................

lendar year 1946

ter year 1948-49 .......................

Peak discharge (base. 1,200 sec. -ft.).- De

sec. -ft.; Jan. 24 14 a.m.) 3,940 sec. -ft.; f 

sec. -ft.; July 24 (8 p.m.) 1,320 sec. -ft. j A

Mar.

758 

650 

610 

630 

780

945 

1,380 

3,910 

f2,430 

f 1,600

f 1,380 

f 1,260 

f 1,170 

f 1,080 

f 1 , 050

1,040 

1,080 

1,080 

1,020 

1,020

998 

848 

780 

690 

610

570 

512 

454 

448 

437 

403

Apr.

403 

403 

374 

378 

356

343 

353 

371 

403 

440

448 

448 

476 

512 

550

590 

590 

570 

550 

53O

494 

476 

494 

512 

512

530 

550 

530 

512 

494

Secondfoot -day s

1,030 

1,539 

5,820

'34,993

46,960 

10,168 

31,623 

14,192 

6,821 

2,042 

4,657 

4,621 

2,124

131,597

Hay

458 

410

374 

371 

360

339 

308 

280 

262 

243

245 

260 

250 

233 

212

208 

197 

171 

152 

138

131 

121 

116 

113 

115

118 

128 

140 

133 

123 

112

Maximum

66 

110 

1,910

1,910

12,400 

970 

3,910 

590 

458 

105 

427 

1,310 

209

12,400

June

105 

96 

88 

80 

80

78 

77 

74 

74 

71

74 

90 

84 

74 

67

61 

55 

57 

66 

57

55 

59 

82 

61 

56

50 

46 

44 

40 

40

July

427

187 

f!04

f86 

f79

f72 

68 

66 

12'j 

202

151 

306 

182 

273 

184

133 

112 

100 

102 

116

112 

209 

120 

238 

293

191 

112 

86 

75 

70 

72

Aug.

79 

104 

165 

213 

228

156 

133 

1,310 

466 

258

219 

164 

f!18 

f94 

f80

74 

74 

68 

61 

59

55 

56 

60 

52 

46

42 

40 

39 

39 

38 

31

Minimum Mean

19 33.2 

43 51.3 

41 IBS

15 95.6

80 1,515 

190 363 

403 1,020 

343 473 

112 220 

40 68.1 

66 150 

31 149 

27 70.8

19 361

c. 28 (2 a.m.) 2,890 sec. -ft.; Jan. 13 (10 p. 

lay 8 (11 a.m.) 4.520 sec. -ft. ; July 1 (7:30 p 

ug. 8 (7:30 p.m.) 4,680 gee. -ft.

Sept.

27

29 

47 

78 

88

102 

68 

91 

67 

75

70 

79 

79 

94 

209

f96 

f70 

f63 

f59 

56

71 

70 

59 

54 

55

59 

63 

52 

48 

46

Runoff In 

acre-feet

2,040

3,050 

11,540

69,400

93,140 

20,170 

62,720 

28,150 

13,530 

4,050 

9,240 

9,170 

4,210

261,000

m. ) 24,100 

.m. ) 6,010

f Fragmentary gage-height record; discharge computed from wholly or partly estimated gage heights.
388 GILA RIVER BASIN 

Eagle Creek near Double Circle Ranch, near Morenci, Ariz.

Location.- Water-stage recorder, lat. 33°18'00", long. 109"29'30", in SE& sec. 32, T, 1 S., 

RT~2B~E., unsurveyed, half a mile upstream from head of box canyon, 2{ miles downstream 

from Willow Creek, 3£ miles downstream from Double Circle Ranch, and 17 miles northwest 

of Morencl. Altitude of gage, 4,724 feet (by barometer).

Drainage area.- 377 square miles.

Keeords available.- August 1944 to September 1949.

tixtremes. - Maximum discharge during year, 2,400 second-feet Jan. 13 (gage height, 4.80

feet), from rating curve extended above 270 second-feet' on basis of slope-area determination for high water of Sept. 11, 1944, at gage height, 4.80 feet; minimum, 4.0 secondfeet June 13.

1944-49: Maximum discharge, 2,400 second-feet Sept. 11, 1944, Jan. 13, 1949 (gage 

height, 4.80 feet), by slope-area method; minimum, 1.7 second-feet June 21, 1946,

Remarks.- Records excellent except those for periods .of ice effect or fragmentary or no 

gage-height record, which are fair, and those above 300 second-feet, which are poor. 

Diversions above station for irrigation, no diversions between mouth of Willow Creek 

and this station. Water pumped from Black River into Eagle Creek Basin, 25 miles upstream, is an appreciable part of flow past this station (see p. 390).

Inflow between station and point 85- miles downstream, below Sheep Wash, as determined 

by discharge measurements, was 3.2 second-feet Dec. 17, 6.2 second-feet May 10, and 4,4 

second-feet Sept. 14. Discharge measurements of the combined flow of Eagle Creek, 900 

feet above Willow Creek and Double Circle ditch, are given below.

Day

1948 

Oct. 20 

Nov. 13 

Dec. 3 

17

Discharge 

(second-feet)

0.34 

1.31 

1.53 

2.03

Day

1949 

Jan. 7 

Feb. 5 

24 

Mar. 22

Discharge 

(second-feet)

3.5S 

20.5 

98.3 

28.7

Day

1949 

Apr. 3 

May 11 

June 2 

Aug. 24 

Sept. 14

Discharge 

(second-feet)

22.0 

5.08 

3.52 

1.54 

5.44

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

13.0 

13.0 

12.2 

12.6 

12.6

13.5 

13.5 

13.5 

13.5 

13.0

13.0 

12.6 

12.6 

12.6 

12.6

12.6 

13.0

14.1 

17.1 

15.3

14.1 

14.1 

14.7 

14.1 

14.1

14.7 

13.5 

13.0 

13.5 

16.7 

15.9

Nov.

13.5 

13.0 

13.0 

12.6 

12.6

12.2 

12.2 

12.6 

12.2 

12.6

13.5 

13.5 

*14-1 

14.1 

14.1

14.1 

14.7 

14.7 

13.5 

15.9

15.9 

17.1 

17.1 

17.7 

18.3

17.7 

19.8 

b!5.6 

b!6.8 

b!8.4

Dec.

blS.O 

b!5.6 

*b!6.9 

18.9 

b!5.9

b!7.0 

bl8.5 

b!8.9 

18.5 

18.6

18.0 

19.1 

19.0 

20.4 

21.2

21.2 

*21.2 

21.2 

20.4 

12.7

8.0 

8.0 

9.0 

8.7 

8.3

9.9 

25.7 

42 

26.3 

17.7 

14.7

Jan.

14.1 

14.1 

12.8 

b9.0 

b8.3

b7.3 

*7.6 

7.6 

10.4 

16.7

63 . 

165 

1,480 

555 

f!60

f!21 

f98 

f98 

f87 

f87

f87 

f87 

*139 

*300 

212

155 

114 

*82 

58 

42 

39

Feb.

36 

34 

32 

29.1 

*26.2

23.6 

22.7 

21.8 

19.2 

17.9

17.9 

17.9 

18.5 

18.5 

17.2

16.6 

16.6 

16.6 

17.9 

24.5

44 

66 

98 

*136

141

123 

107 

94

Month

Octo 

Hove 

Dece

Ca

Janu 

Febri 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lender year 1948

ter year 1948-49 ...............

Peak discharge (base, 150 sec. -ft.).- Jan.

sec. -ft. ; Mar. 8 (e a.m.; 190 sec. -ft. ; July

Mar.

78 

66 

62 

63

74

79 

117 

175 

126 

94

76 

65 

57 

52 

48

48 

46 

42 

39 

39

42 

37 

36 

34 

34

39 

42 

39 

35 

31 

29J.

Apr.

37 

39 

38 

35 

32

32 

37 

39 

38 

37

35 

35 

36 

31

30

29.1 

30 

31 

31 

28.0

26.2 

23.6 

21.0 

21. 0 

20.1

21.0 

21.0 

19.2 

17.2 

16.6

Secondfoot-days

424.3 

443.1 

549.5

5,941.1

4,336.9 

1,253.7

1,844.1 

887.0 

515.7 

501.1 

1,105.0 

713.2 

558.1-

13,131.7

May

17.2 

17. S 

17.9 

al8.7 

a!9.6

a!9.2 

alS.S 

alS.E 

alS.C 

18. E

18.6 

18.5 

14.6 

9.6 

10.7

20.1 

21.8 

21.0 

20.1 

19.2

19.2 

18.5 

17.9 

18.5 

19.2

13.0 

8.6 

7.6 

6.9 

9.2 

18.5

Maximum

17.1 

19.8 

42

58

1,480 

141 

175 

39 

21.8 

21.8 

132 

144 36'

1,480

June

20.1 

17.9 

21.0 

21.0 

21.0

21.0 

21.8 

21.0 

13.4 

7.3

6.6 

5.6 

7.2 

15.2 

16.6

16.6 

17.2 

19.2 

18.5 

20.1

21.8 

21.0 

20.1 

19.2 

18.5

18.5 

15.2 

12.6 

L3.3 

12.6

July

21,1 

25.8 

18.5 

18.5 

25.4

19.2 

17.9 

15.9 

17.9 

62

53 

18.5 

44 

31 

19.2

13.9 

12.6 

17.4 

132 

54

31 

26.3 

46 

99 

107

47 

27.1 

22.7 

21.0 

20.1 

20.1

Minimum

12.2 

12.2 

8.0

3.9

7.3 

16.6 

29.1 

16.6 

6.9 

5.6 

12.6 

12.6 

12.6

5.6

Aug.

19'. 2 

19.2 

25.4 

24.5 

23.6

21.8 

21.0 

144 

47 

28.0

25.4 

23.6

20. L 

18.5 

17.9

16.6 

14.6 

13.3 

12.6 

13,3

12,6 

13.3 

13.9 

14.6 

15.9

15,2 

15.2 

15,2 

15.2 

15.9 

16.6

Mean

13.7 

14.8 

17.7

16.2

140 

44.8 

59.5 

29.6 

16.6 

16.7 

35.6 

23.0 

18.6

36.0

Sept.

15.9 

15.9 

18.0 

17.2 

21.0

17.9 

16.6 

21.2 

24.3 

19. Z

24,8 

21.0 

36 

27.1 

24.5

20.1 

18.5 

18.5 

17,9 

17.2

16, S 

15.2 

15,2 

15,2 

15.8

14.6 

13,3 

13.3 

13.9 

18.6

Runoff In 

acre-feet

842 

879 

1,090

11,790

8,600 

2,490 

3,660 

1,760 

1,020 

994 

2,190 

1,410 

1,110

26,040

13 (4 p.m.) 2.400 sec. -ft.; Jan. 23 (11:30 p.m.) 478 

10 (9:30 p.m.) 222 sec. -ft. ; July 13 (6 p.m.) 160 sec.-

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for other stations In basin.

b Stage-discharge relation affected by Ice.

f Computed on basis of wholly or partly estimated gage heights.
GILA RIVER BASIN 389

Eagle Creek above pumping plant, near Morenci, Ariz.

Location.- Water-stage recorder, Parshall flume and weir, lat. 33°04'00", long. 109°26 I 45", 

in sec. 22, T. 4 S., R. 28 E., 2\ miles upstream from Phelps Dodge Corp. pumping plant, 

5 miles west of Morenci, and 13 miles upstream from mouth.. Crest-stage indioator 35 

feet upstream from recorder.

Drainage area.- 613 square miles.

Records available.- April 1944 to September 1949.

Extremes.- Maximum discharge during year, 2,500 second-feet Jan. 13 (gage height, 6.8 

i'eet, from floodmarks), from rating curve extended above 260 second-feet on basis of 

weir formula, minimum, 7.0 second-feet Jan. 5.

1944-49: Maximum discharge not determined, occurred Sept. 26, 1944 (stage, about 

10 feet, from floodmarks); minimum, 3.2 second-feet July 1. 1946.

A discharge of 13,000 second-feet (by slope-area method) occurred Feb. 10, 1932, at 

a stage of 11 feet above normal low water at suspension bridge 2j miles downstream; the 

stage of flood of Sept. 26, 1944, was about 2.5 feet lower at same site.

Remarks.- Records excellent below 50 second-feet, good between 50 and 100 second-feet, and 

poor above. Diversions above station for irrigation, mostly above Willow Creek. Water 

from Black River was pumped into Eagle Creek Basin, 5lf miles upstream from this 

station, for about three-quarters of the year (see following page). Diversions by 

pumping for mining, metallurgical treatment of ores, and domestic use in and near 

Morenci and Clifton are made from Eagle Creek, 2| miles downstream from this station, 

and from San Francisco River near Clifton. The monthly quantities diverted are shown 

in tabl« below. More than 97 percent of the pumpage was from Eagle Creek.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31,

Oot.

18.4 

17.6 

18.0 

18.0 

17.6

18.0 

17.2 

17.6 

17.6 

17.2

17.2 

17.2 

17.2 

17.6 

18.0

18.4 

18.0 

17.6 

19.7 

19.7

18.4 

18.0 

18.0 

18.0 

18.0

18.9 

19.3 

19.7 

19.3 

20.6 

24.6

HOT.

22.4 

21.0 

20.6 

20.6

20.1

20.1 

20.1 

20.6 

21.0 

21.0

21.5 

21.5 

21.0 

21.0 

21.0

20.6 

20.6 

20.6 

20.6 

20.6

21.5 

22.8 

22.8 

23.3 

23.3

23.7 

24.6 

23.3 

21.9 

22.8

Dec.

23.3 

23.7 

23.7 

24.6 

24.6

21.9 

24.2 

25.6 

25.6 

25.6

25.6 

25.1 

25.6 

26.1 

27.5

26.5 

26.1 

26.1 

26.5 

26.1

20.6 

19.7 

21.5 

19.7 

19.7

26.5 

46 

94 

52 

34 

27.0

Jan.

25.6 

24.6 

25.6 

20.1 

f!6.2

f!7.1 

f!8.4 

18.4 

33 

75

133 

228 

e950 

e80o 

a400

a260 

a!70 

a!30 

112 

107

108 

130 

e!93 

e320 

e280

e240 

e200 

6160

e!30 

105 

87

Month

Oct 

Nov

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

ember ....... ..........

alendar year 1948. ......

uary

oh......... .............

11. .....................

e

tember. .................

ater year 1948-4

Feb.

78 

69 

63 

56 

50

45 

42 

40 

36 

33

32 

32

31 

35 

34

31 

30 

35 

44 

48

59 

79 

113 

161 

180

168 

140

nd

Secondfoot-dayt

570.6 

646.5 

886.7

8,457.5

5,517.0 

1,883 

2,401 

1,210.1 

670.9 

633.4 

1,662.5 

1,034.3 

775.2

17,891.2

Bar.

109 

100 

89 

82 

85

92 

10O 

183 

156 

125

1O9 

93 

84 

75 

69

65 

62 

61 

58 

55

56 

54 

52 

49 

48

48 

53 

51 

50 

45 

43

Apr.

47 

55 

51 

48 

45

43 

46 

49 

50 

46

45 

45 

45 

43 

40

40 

39 

41 

41 

41

38 

37 

S3 

SO 

30

2ao

29.0 2as

27.5

260.

Hay

25.6 

25.1 

26.1 

26.5 

27.0

26.1 

25.1 

23.7 

23.7 

21.9

22.8 

23.7 

23.3 19. r

16.4

16.4 

23.3 

24.2 

23.7 

23.3

22.8 

22.4 

22.4 

21.5 

21.5

21.9 

17.8 

14.8 

13.3 

12.2 

12.7

June

19.7 

21.5 

20.6 

22.4 

22.4

21.5 

21.5 

22.4 

23.3

18.7

14.4 

28.6 

14.5 

11.2 

16.4

18.0 

18.4 

22.4 

22.4 

22.4

23.7 

26.5 

31 

27.5 

25.6

23.3 

21.9 

18.4 

16.4 

16.4

Discharge in second-feet

Maximum

24.6 

24.6 

94

94

950 

180 

183 

55 

27.0 

31 

212 

157 

71

950

Minimum

17.2 

20.1 

19.7

11.5

16.2 

30 

43 

26.1 

12.2 

11.2 

16.0 

16.4 

16.8

11.2

Mean

18.4 

21.6 

28.6

23.2

178 

67.2 

77.5 

40.3 

21.6 

21.1 

53.6 

33.4 

25.8

49.0

July

16.0 

23.6 

31 

26.1 

25.6

34 

28.0 

24.2 

25.0 

32

90 

79 

47 

78 

40

29.5 

24.2 

23.3 

85 

e!65

52 

40 

38 

e!37 

6212

83 

49 

36 

31 

28.5 

29.5

Runoff 

in 

acre-feet

1,130- 

1,280 

1,760

16,830

10,940 

3,730 

4,760 

2,400 

1,330 

1,260 

3,300 

2,050 

1,540

35,480

Aug.

26.5 

25.1 

30 

36 

46

29.5 

26.5 

6155 

e!57 

62

47 

36 

32 

25.8 

22.8

21.0 

19.5 

17.6 

17.6 

16.8

16.8 

16.4 

17.2 

16.8 

17.2

16.8 

16.4 

16.4 

16.8 

16.4 

17.6

Sept.

17.2 

16.8 

17.6 

44 

28.5

24.6 

22.4 

22.4 

31 

26.5

25.5 

30 

26.8 

71 

44

32 

26.5 

24.6 

23.3 

22.8

22.8 

21.9 

20.6 

20.1 

19.3

19.7 

19.7 

18.0 

18.0 

17.6

Pumpage to Clifton 

and Morenci from' 

San Francisco River 

and Eagle Creek 

(acre-feet)

753 

734 

1,016

10,250

814 

709 

700 

691 

597 

679 

675 

789 

833

8,990

Peak discharge (base, 280 sec. -ft.).- Jan. 13 (9 p.m.) 2,500 see. -ft.; Jan. 24 (5 a.m.) 4OO sec.-

ft.; July 19 (11 p.m.) 555 sec.-ft.; July 24 (9:30 p.m.) 

Sept. 14 (6 p.m.) 282 sec.-ft.

a No gage-height record; discharge computed on basis of records for other stations in basin.

e Stage-discharge relation unstable, high velocities affecting gage heights; discharge computed on 

basis of records for other stations in basin and partly estimated effective gage heights.

f Computed from partly estimated gage heights.
390 GILA RIVER BASIN

Willow Creek diversion from Black River, near Morenci, Ariz.

Location.- Water-stage recorder and steel-edged rectangular weir, lat. 33°24'45", long. 

109"42'45", in SWv sec. 23, T. IN., R. 25 E., unsurveyed, on San Carlos Indian 

Reservation, just downstream from end of diversion pipe line, 5? miles southeast of 

pumping plant (on'Black River, 2,100 feet downstream from Freezeout Creek), 3 miles 

northeast of Point of Pines, and 29 miles northwest of Morenci. Datum of'gage is 

5,985.19 feet above mean sea level (Phelps Dodge Corp. bench mark).

Records available.- April 1945 to September 1949.

Extremes.- Maximum discharge during year, 22.2 second-feet June 25 (gage height, 2.81 

feet); no flow Dec. 20 to Mar. 19.

1945-49: Maximum discharge, 22.7 second-feet Mar. 18, 1947 (gage height, 2.82 feet)' 

no flow for some periods in each year.

Remarks.- Records excellent. The entire flow consists of Black River (head of Salt River) 

water which is pumped into headwaters of Willow Creek (tributary of Eagle Creek) for 

mining, metallurgical treatment of ores, and domestic supply in vicinity of Morenci.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

13.3 

12.8 

12.9 

13.2 

14.1

14.0 

14.0 

14.0 

13.8 

13.8

13.8 

13.8 

13.8 

13.6 

13.8

13.8 

13.6 

13.6 

12.7

:s.o

13.3 

13.3 

13.0 

12.9 

13.4

11.8 

11.3 

11.7 

14.2 

12.3 

11.9

Nov.

11.9 

11.8

11.7 

11.3 

10.7

10.7 

10.7 

10.7 

10.9 

11.2

10.9 

11.0 

11.0 

10.7 

10.8

11.8 

12.0 

11.8 

12.2 

12.9

13.4 

13.4 

13.3 

13.7 

13.8

14.0 

13.7 

13.7 

13.2 

12.8

Dec.

12.8 

13.6 

13.3 

13.4 

12.8

13.7 

16.1 

15.4 

15.7 

15.5

15.5 

15.5 

15.5 

15.5 

16.8

17.0 

16.8 

17.0 

4.5 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

o

Jan. Feb.

Month

Octo 

Nove 

Dece

ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

6.2 

9.1

9.1 

9.2 

9.4

10.0 

14.0

18.3 

17.8 

13.6 

7.9 

10.6 

9.5

Apr.

11.9 

14.7 

13.2 

12.9 

12.3

14.3 

13.7 

14.0 

13.1 

13.7

13.5 

14.0 

10.3 

10.4 

8.7

11.4 

13.2 

13.0 

10.6 

8.2

12.0 

10.9 

10.3 

9.9 

9.8

10.0

7.5 

5.4 

5.9 

9.2

Secondfoot-days

410.5 

361.7 

276.4

4,488.5

0 

0 

144.7 

338.0 

370.5 

488.1 

448.0 

455.1 

489.0

3,782.0

May

10.7 

11.0 

10.9 

10.9 

10.9

8.7 

10.0 

8.7

11.6 

13.7

12.8 

3.0 

.1- 

12.4 

18.7

18.0 

17.3 

17.4 

16.8 

16.7

17.0 

17.1 

17.5 

19.4 

5.4

.1 

0 

0 

13.6 

20.3 

19.8

Maximum

14.2 

14.0 

17.0

20.2

0

0 

18.3

14.7 

20.3 

20.7 

15.8 

18.1 

17.4

20.7

June

15.2 

20.5 

20.2 

19.4 

19.5

19.2 

19.8 

6.1 

.1 

.1

0 

13.7 

20.7 

20.2 

20.3

20.0 

20.3 

19.4 

19.5 

20.6

20.0 

20.2 

20.3 

19.8 

20.5

16.0 

13.4 

14.3 

14.3 

14.5

July

15.7 

15.6 

15.4 

15.0 

15.3

15.4 

15.0 

15.4 

14.9 

15.1

15.4 

15.1 

15.6 

12.4 

7.7

9.2

13.3 

15.8 

14.9 

15.4

15.0 

15.4 

14.9 

15.2 

15.4

15.4 

13.4 

13.8 

14.0 

13.7 

14.2

Minimum

11.3 

10.7 

0

0

0 

0 

0 

5.4 

0 

0 

7.7 

12.5 

14.0

0

Aug.

13.8 

13.8 

14.0 

13.7 

14.0

13.8 

13.7 

14.1 

14.9 

18.1

16.5 

15.4 

12.6 

14.0 

13.8

13.7 

12.6 

12.8 

12.6 

12.5

12.6 

12.6 

14.7 

18.1 

16.8

16.1 

16.8 

16.5 

17.0 

16.7 

16.8

Mean

13.2 

12.1 

8.92

12.3

0 

0 

4.67 

11.3 

12.0 

16.3 

14.5 

14.7 

16.3

10.4

Sept.

16.5 

16.8 

16.5 

17.3 

16.8

16.8 

17.4 

16.9 

16.5 

17.3

16.7 

17.1 

16.8 

16.7 

17.0

16.7 

17.0 

17.1 

17.0 

17.0

15.8 

16.1 

15.8 

15.8 

15.2

14.0 

15.0 

14.7 

14.1 

14.6

Runoff In 

acre-feet

814 

717 

548

8,910

O 

0 

287 

670 

735 

968 

889 

903 

970

7,500
GILA RIVER BASIN 391

Willow Creek near Point of Pines, near Morenci, Ariz.

Location.- Water-stage recorder and concrete control, lat. 33°22'45", long. 109°38'00", 

in NW£ sec. 2, T. IS., R. 26 E., unsurveyed, on San Carlos Indian Reservation, at 

hea~ct of box canyon, 4 miles east of Point of Pines, 10 miles west of Double Circle 

Ranch, and 23 miles northwest of Morenci. Altitude of gage, 5,804 feet (by barometer).

Drainage area.- 102 square miles.

Records available.- August 1944 to September 1949.

Extremes.- Maximum discharge during year, 529 second-feet Jan. 13 (gage height* 6.37 

feet), from rating curve extended above 30 second-feet on basis of slope-area determination at gage height 7.96 feet; no flow on many days in December, January, May, and 

June.

1944-49: Maximum discharge, 1,200 second-feet July 10, 1946 (gage height, 7.96 

feet), by slope-area method; no flow on many days each year.

Remarks.- Records excellent except those above 30 second-feet and those for periods of 

no gage-height record, which are poor. Almost all flow past this station is water 

pumped from Black River (see record on preceding page).

Discharge, in second-feet, water year October 194'8 to September 1949

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17

le

19 

20

21 

22 

23

24 

25

26 

27 

2B 

29 

30 

31

Oct.

12.6 

12.3 

12.3 

12:3 

13.3

13.6 

13.3 

13.3 

13.3 

13.3

13.3 

13.3 

13.3 

13.0 

13.3

13. & 

13.3 

13.6 

12.8 

12.6

12.6 

12.3 

12.0 

11.6 

12.3

11.8 

10.6 

9.7 

13.3 

12.6 

11. 0

Nov.

11.0 

11.0 

11.0 

11.0 

10.6

10.4 

10.4 

10.4 

10.4 

11.3

10.8 

*10.8 

10.6 

10.4 

10.6

11.3 

11.6 

10.8 

11.9

12.2

12.8 

b!2.9 

12.6 

13.3 

13.3

13.2 

bll.8 

bll.4 

bll.8 

12.5

Dec.

12.3 

*12.9 

13.2

11.7 

13.8

13.0 

16.0 

15.0 

15.2 

15.1

15.2 

14.9 

15.4 

15.5 

16.1

16.7 

16.4 

*16.7 

*8.6 

*.2

O 

.3 

.9

.2 

0

.9 

2.1 

10.5 

.2 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

13

45 

75 

348 

95

a27

a!5 

a5 

a4 

a3 

a3

a3 

a2 

48 

50 

a31

a22 

a!4 

a7 

a5 

a4 

a3

Feb.

a3

a2 

*b2 

bl.3 

b.9

.9

.6 

.8 

.6 

.3

.3

.7 

.7 

.7 

.4

.3

.1 

.1 

2.2 

7.6

15.5 

19.7 

34 

44 

41

29.7 

21.5 

18.0

Month

Octo 

Hove 

Dece

Ca

~anu 

Febr 

Hare 

Aprl 

MAV

June 

July 

Augu 

Sept

Ma

lendar year 1948

ter year 1948-49- .......................

Pealk discharge (base, 60 sec. -ft.)-- Jan.

Mar.

14.0 

11.0 

8.7 

8.5 

9.6

9.2 

23.2 

30 

16.6 

fll.5

f7.8 

f5.2 

f3.4 

2.4 

1.8

1.5 

1.1

*.7 

2.1 

9.2

8.9 

9.2 

9.2 

9.6 

12.5

18.0 

17.4 

14.6 

7.3 

10.2 

8.7

Apr.

11.0 

15.0 

13.0 

12.8 

11.6

17.4 

17.1 

17.1 

15.3 

15.0

13.8 

14.1 

11.2 

10.1 

8.2

9.6 

12.0 

12.0 

10.3 

7.0

11.5 

10.3 

9.8 

9.6 

9.4

9.6 

8.0 

4.6 

5.2 

7.2

Secondfoot-days

391.5 

344.1 

289.3

4,355.0

822 

248.9 

303.1 

338.8 

335.7 

445.3 

433.7 

427.1 

469.5

4,849.0

13 (2 p.m. )

May

9.8 

10.1 

10.1 

10.1 

10.1

7.6 

9.2 

7.8 

9.6 

12.8

11.5

6.1 

.1 

6.2 

16.8

16.6 

16.6 

16.0 

15.5 

15.5

15.7 

15.5 

15.7 

17.7 

9.2

.1 

0 

0 

6.4 

18.8 

18.5

Maximum

13.6 

13.3 

16.7

27.5

3|48 

44 

30 

17.4 

18.8 

19.1 

21.8 

17.4 

17.9

348

529 sec. -ft.

June

13.8 

18.8 

18.5 

18.5 

18.0

18.5 

18.3 

9.2

.1 

0

0 

7.1 

19.1 

18.3 

18.8

18.5 

19.1 

18.3 

18.0 

19.1

18.5 

18.3 

18.3 

17.7 

18.3

15.2 

11.5 

12.5 

12.5 

12.5

July

13.6 

14.9 

14.1

13.6 

14.4

14.4 

13.8 

14.4 

14.6 

15.2

14.6 

15.4 

14.9 

13.1

7.1

8.7 

11.4 

14.9 

14.1 

15.5

14.4 

14.4 

15.7 

21.8 

14.9

14.4 

12.5 

13.0 

13.0 

13.3 

13.6

Minimum

9.7 

10.4 

0

0

0 

.1 

.7 

4.6 

0 

0 

7.1 

11.3 

12.5

0

; Jan. 23

Aug.

13.3 

13.3 

13.3 

13.0 

13.0

13.0 

15.3 

14.1 

13.0

17.4

15.5 

14.9 

11.3 

12.5 

12.5

12.5 

11.3 

11.3 

11.3 

11.5

11.5 

11.8 

12.7 

17.4 

16.0

15.3 

16.0 

15.7 

16.0 

15.7 

15.7

Mean

12.6 

11.5 

9.33

11.9

26.5 

8.89 

9.78 

11.3 

10.8 

14.8 

14.0 

13.8 

15.6

13.3

(6:30 p.m.)

Sept.

15.7 

15.7 

16.0 

16.3 

15.7

16.0 

16.0 

17.5 

16.0 

16.0

16.3 

16.0 

17.9 

17.4 

16.6

16.0 

16.3 

16.0 

16.0 

16.0

15.5 

15.2 

15.2 

15.2 

14.9

12.5 

14.1 

13.8 

13.6 

14.1

Runoff In 

acre-feet

777 

663 

574

8,640

1,630 

494 

601 

672 

666 

683 

860 

847 

931

9,620

161 sec.-

fie.; July 24 (7 p.m.; 167 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of other records in basin.

b Stage-discharge relation affected by ice.

f Fragmentary gage-height record; discharge computed on basis of recorded range In stage, and rec- 

"vpds for other stations in barfin.

939921 0-51-26
392 GILA RIVER BASIN

Willow Creek near Double Circle Ranch, near Morenci, Ariz.

Location.- Water-stage recorder, lat. 33°21'15", long. 109°31'30", in NE^ sec. 13, T. 

l'1 S. , H. 27 E., unsurveyed. on San Carlos Indian Reservation, 1 mile upstream from 

lower end of box canyon, 2-jj miles northwest of Double Circle Ranch, 2j miles upstream 

from mouth, and 19 miles northwest of Morenci. Altitude of gage, 4,949 feet (by 

barometer).

Drainage area.- 149 square miles.

Records available.- August 1944 to September 1949.

Extremes.- Maximum discharge during year, 2,010 second-feet Jan. 13 (gage height, 6.49 

reet); minimum, 0.4 second-foot May 30.

1944-49: Maximum discharge, that of Jan. 13, 1949, from rating curve extended 

above 70 second-feet on basis of slope-area determination at 1,100 second-feet; no 

flow Sept. 1-10, 1944, and part of June 29, 1S46.

Remarks.- Records excellent except those for periods of ice effect or fragmentary gageHeight record, which are fair, and those over 50 second-feet which are poor. Major 

portion of flow past this station is water pumped from Black River (see p. 390).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19. 

20

21 

22 

23 

24 

25

26 

27 

28

<;9

30 

31

Oct.

11.3 

11.3 

11.3 

11.3 

12.1

12.5 

12.5 

12.5 

12.5 

12.5

12.5 

12.5 

12.5 

12.5 

12.5

12.5 

12.5 

12.9 

14.3 

12.9

12.5 

12.5 

12.5 

12.5 

12.9

12.9 

11.3 

11.3 

12.5

13.4 

13.4

Nov.

12.1 

12.5 

12.5 

12.5

12.1

11.7 

11.7 

H.7 

11.3 

12.1

12.1 

12.1 

*12,l 

12.1 

12.1

12.1 

12.9

12. a

b!2.7 

13.9

14.7 

14.7 

14.7 

15.2 

15.2

15.5 

14.8 

b!3.0 

b!2.3 

b!2.3

Dec.

b!3.5 

b!4.2 

*b!4.0 

b!4.3 

b!2.5

b!4.8 

bl5.6 

bl5.6 

b!5.5 

bl5.6

b!6.0 

bis. 2 

16.5 

16.7 

17.2

17.2 

 17.8 

17.8 

17.2 

*6.4

3.6 

3.4 

4.4 

4,. 4 

3.2

4.2

6.2 

10.9 

6.2 

3.6 

2.9

Jan.

2.7 

2.9 

b2.0 

bl.9 

bl.9

bl.9 

*1.6 

1.3 

2.3 

2.4

53 

105 

800 

216 

74

f32 

f29 

f!9 

f22 

f!4

f!2 

flO 

*79 

136 

76

44

32 

 >20.4 

13.8 

7.8 

b6.7

Feb.

b5.7 

5.2 

5.0 

4.4 

*3.6

3.4

3.0 

2.9 

2.5 

2.4

2.2 

2.1 

2.2 

2. .5 

2.5

2.2 

2.2 

3.2 

3.8 

4.9

11.4 

18.5 

27.6 

*43 

42

31 

24.6 

19.5

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

ber. ................ ....................

lendar year 1948 

ary

1.......................................

ter year 1948-49 .......................

teak discharge (base, 60 sec. -ft. .- Jan.

sec. -ft.; July 10 (6 p.m.; 190 sec. -ft.; Jul 

ft.} July 24 (10 p.m.) 438 sec. -ft.

Map.

16.2 

13.8 

11.3 

9.8 

9.4

10.1 

11.3 

33 

21.4

15.2

10.9 

8.1 

6.2 

4.8 

3.8

3.2

2.5 

2.0 

1.6 

2.7

7.8 

8.7 

9.1 

9.4 

10.1

16.2 

17.8 

17.8 

12.0 

9.6 

10.5

Apr.

11.7 

 14.3 

14.7 

13.8 

13.4

15.1 

18.3 

18.9 

17.8 

16.7

15.2 

14.7 

14.3 

10.5

10.1

9.1 

11.7 

12.5 

12.5 

9.4

9.4 

10.1 

9.8 

9.8 

9.4

9.1 

9.1 

7.7 

5.5 

5.5

Seeondfoot-days

385.1 

387.5 

357.6

4,452.1

1,822.6 

283.5 

326.3 

360.1 

303.7 

409.9 

629.7 

415.0 

475.5

6,156.5

13 (3:30 p.m 

y 13 (4:30 p

May

7.8 

9.1 

9.4 

10.1 

9.8

9.4 

8.1 

8.7 

7.8 

10.9

11.3 

10.9 

5.2 

2.4 

7.5

14.7 

15.2 

14.3 

13.8 

13.8

13.8 

13.8 

13.8 

15.7 

14.7

5.4

2.1 

1.3 

.7 

7.0 

15.2

Maximum

14.3 

15,5 

17.8

33

800 

43 

33 

18.9 

15.7 

17.8 

62 

20.9 

27.9

800

June

15.7 

13.8 

16.7 

17.2 

16.7

17.2 

17.2 

16.7 

6.0 

2.7

1.7 

1.0 

8.3 

15.2 

15.7

15.7 

16.2 

17.8 

16.2 

17.2

17.8 

17.8 

17.2 

16.7 

16.7

16.2 

11.1 

10.5 

10.5 

10.5

July

10.9 

12.5 

12.5 

12.1 

12.1

13.8 

12.5 

12.1 

12.9 

37

23.4 

19.5 

34 

19.0 

12.0

8.7 

9.1 

13.4 

62 

24.2

17.2 

15.7 

25.2 

53 

53

23.7 

14.7 

13.8 

13.4 

12.9 

13.4

Aug.

12.9 

13.4 

13.4 

13.8 

13.4

12.9 

13.4 

20.9 

15.2 

15.7

15.7 

15.2 

12.5 

12.1 

12.1

12.1 

10.9 

10.9 

10.5 

10.5

10.5 

10.5 

11.7 

14.3 

14.7

14.3 

14.3 

14.3 

14.3 

14.3 

14.3

Minimum Mean

11.3 12.4 

11.3 12.9 

2.9 11.5

1.1 12.2

1.3 58.8 

2.1 10.1 

1.6 10.5 

5.5 12.0 

.7 9.80 

1.0 13.7 

8.7 20.3 

10.5 13.4 

12.9 15.8

.7 16.9

Sept.

14.3 

14.3 

15.2 

16.2 

15.2

15.2 

15.2 

16.4 

17.4 

16.3

18.5

16.2 

27.9 

19.9 

18.9

16.7 

16.2 

15.7 

15.7 

15.7

15.2 

14.3 

14.3 

14.7 

14.7

13.6 

12.9 

12.9 

12.9 

12.9

Runoff In 

acre-feet

764 

769 

709

8,840

3,620 

562 

647 

714 

602 

813 

1,250 

823 

943

12,220

.) 2,010 sec. -ft.; Jan. 23 (9:30 p.m.) 315 

.m. ) 188 sec. -ft.; July 19 (5 p.m.J 575 seo.-

Winter discharge measurement made on this day. 

b Stage-discharge reflation affected by ice. 

f Fragmentary gage-Height record; discharge computed from partly estimated gage heights.
GILA RIVER BASIN 393

San Simon Creek near Solomonsville, Ariz.

Location. - Water-stage recorder and concrete control, lat. 32°48'06", long. 109°38 I 19", in 

NW^-NE^ sec. 25, T. 73., R. 26 E., 1 mile southwest of Solomonsville and 2f miles upstream from mouth. Datum of gage is 2,960.15 feet above mean sea level, datum of 1929.

Drainage area.- 2,280 square miles.

Records available.- June 1931 to September 1932, May 1935 to September 1949.

Average discharge.- 15 years (1931-32, 1935-49), 13.3 second-feet.

Extremes.- Maximum discharge during year, 8,100 second-feet Aug. 8 (gage height, 15.55 

reet }; no flow on many days.

1931-49: Maximum discharge, 27,500 second-feet Aug. 9, 1931 (gage height, 19.0 

feet), by slope-area method; no flow on many days in each year.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are poor. Small diversions above station for irrigation. Records do not include 

waste water passing station from San Jose Canal, which diverts from Gila River.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Ooto 

Move

Decei

Ca

Janu 

Pebr 

Marc 

Apr! 

M&v

June 

July 

Augu 

Sept

Ha

Oct.

O 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.7

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

4.3

Nov.

0.2 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0 

O

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

38 

15 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

39 

f3 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

Month

lendar year 1948

ter year 1948-49 .......................

Mar. Apr.

Secondfoot-days

5.0 

.2 

53

2,403.8

r 42

0 

0 

0 

0 

76.4 

1,713.5 

4,981.9 

476.5

7,348.5

May

Maximum

4.3 

.2

38

764

39 

0 

0 

0 

0 

44 

653 

1,740 

224

1,740

June

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

30 

44 

f .1 

O

0 

0 

0 

2.3 

0

0 

0 

0 

0 

0

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

0 

0 

0 

96 

f .1

0 

0 

0 

653 

107

f7 

fl 

f4 

.2 

0

0 

0 

O 

0 

36

.2 

22 

385 

285 

69

fl 

0 

0 

0 

11 

36

Aug.

fO.l 

0

0 

194 

125

f .8 

1,120 

1,740 

1,500 

282

f!8 

f2 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0.16 

.07 

1.7

6.57

1.4 

0 

0 

0 

0 

2.55 

55.3 

161 

15.9

20.1

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

115 

137 

224

f .5

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff In 

acre-feet

9.9 

.4

105

4,780

83 

0 

0 

0 

0 

152 

3,400 

9,880 

945

14,580

Peak discharge (base. 2.500 see.-ft.).- July 9(9:30 p.m.) 6,310 see.-ft.,* July 23 (7 p.m.) 2,860 

sec.-ft.j Aug.i7]ilo p.m.) 7,610 sec.-ft. Aug.l 8 (9 a.m.) 8,100 sec.-ft. 

f Fragmentary'gage-height record; discharge computed from partly estimated gage heights.
394 GILA RIVE? BASIN

San Csrlos River near Peridot, Arlz.

Location.- Water-stage recorder, lat. 33°19'20", long. 110°26'50", in NW$ sec. 30, T.

1 s., H. 19 E., unsurveyed, on San Carlos Indian Reservation, at highway bridge

2 miles downstream, from San Carlos and 2 miles upstream from Peridot. Datum of gage 

is 2,582.71 feet above mean sea level, datum of 1929.

Drainage area.- 1,040 square miles.

Records available.- March 1929 to September 1943. August 1910 to January 1911 and April 

iaj.4 to September 1915 (fragmentary) .at site 9} miles downstream.

Average discharge.- 20 years (1929-49), 50.5 aecond-feet.

.Extremes.- Maximum discharge during year, 3,2.60 second-feet Jan, 9 (gage height, 6.88 

feet); no flow on many days during summer.

1929-49: Maximum discharge, 40,600 second-feet Mar. 14, 1941 (gage height, 11.4 

feet, site and datum then in use), from rating curve extended above 23,000 second-feet 

on tasis of records of inflow to Sah Carlos Reservoir; no flow on several days in most 

years.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are ralr. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.0 

1.6 

1.6 

1.6 

1.6

1.6 

1.9 

1.5 

1.4 

1.8

2.0 

2.6 

2.3 

2.0 

1.9

2.0 

2.3 

3.2 

6.0 

6.0

4.7 

4.4 

3.5 

3.2 

3.5

3.5 

3.5 

5.8 

4.7 

20 

7.0

Nov.

7.0 

6.5 

4.7 

4.1 

4.1

4.1 

4.1 

4.7" 4. '4 

5.5

6.0 

5.5 

5.5 

5.5 

6.0

6.0 

6.0 

5.5 

5.5 

6.0

6.0 

6.5 

7.5 

8.0 

8.0

8.0 

7.5 

7.0 

7.5 

8.0

Dec.

8.5 

7.5 

7.0 

7.5 

7.5

7.5 

7.5 

7.5 

8.0 

8.0

8.0 

8.5 

8.5 

8.0 

9.5

10 

9.5 

9.0 

9.0 

9.0

9.0 

17 

22 

17 

IS

114 

134 

279 

79 

37 

25

Jan.

19 

18 

20 

21 

17

16 

17 

16 

551 

1,220

228 

120 

956 

600 

fU7

f!08 fee

f75 

*f66 

f60

66 

124 

173 

456 

254

184 

224 

162 

125 

86 

66

Feb.

60 

46 

45 

45 

45

39 

37 

34 

34 

34

34 

35 

37 

53 

58

53 

50 

53 

56 

51

50 

51 

51 

56 

54

53 

42 

40

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Va

fflber. ...................................

lendar year 1948

ter year 1948-49 .......................

Mar.

37 

35 

31 

27 

24

22 

21 

21 

22 

22

19 

16 

14 

11 

11

11 

10 

9.7 

9.1 

9.7

9.7 

10 

10 

10 

9.1

ID 

10 

9.7 

8.5 

9.1 

9.1

Apr.

10 

13 

11 

11 

12

12 

12 

12 

11 

11

11 

10 

9.1 

9.1 

7.9

6.8 

6.2 

6.8 

7.4 

6.2

5.8 

5.5 

5.5 

5.2 

4.8

4.8 

4.4

4il 

3.0

Secondfoot-days

110.7 

180.7 

913.5

4,950.7

6,261 

1,296 

487.7 

242.7 

46.4 

1.5 

455.1 

1,599.6 

100.3

11,695.2

Peak Discharge (base 2,000 sec. -ft.).- Jan. 9 {10:30 D

May

2.7 

3.0 

3.0 

Z.4 

3.8

4.1 

4.1 

4.1 

2.2 

1.6

1.3 

.9 

.7 

.4 

.3

.5 

.7 

1.3 

.7 

.3

.6 

2.5 

2.5 

1.5 

.2

0 

0 

0 

0 

0 

0

Maximum

20 

8.0 

279

279

1.220 60 

37

13 

4.1 

1.5 

205 

785 

47

1,220

June

0 

0 

0 

O 

0

0 

0 

0 

0 

1.5

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

0 

O 

0 

61 

1.8

0 

0 

0 

f2.7 

f4.3

.6 

0 

0 

0 

0

0 

0 

17 

205

93

6.2 

2.5 

2.2 

21 

13

9.8 

4.8 

2.7 

1.2 

1.4 

8.9

Aug.

2.3 

.3 

0 

0 

0

0 

51 

685 

785 

48

19

f8 

fl 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

O

Minimum Mean

1.4 3.57 

4.1 6.02 

7.0 29.5

0 IS. 5

16 202 

34 46.3 

8.5 15.7 

3.0 8.09 

0 1.50 

0 .05 

0 14.7 

0 51.6 

0 3.34

0 32.0

Sept.

0 

0 

0 

2.6 

6.7

1.8 

1.6 

1.6 

9.0 

f4

f3 

f3 

47 

ft. 

3.8

2.3 

1.4 

-.8 .6 ~ 

.7

.7

.6 

.4 

.6 

.6

.6 

.4

.3

jl

Hunof f In 

acre -feet

220

358 

1,810

9,820

12,420 

2,570 

967 

481 

92 

3.0 

903 

3,170 

199

23,190

m.) 3,260 sec. -ft.; Jan. 13 (9 p.m.) 2,120

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
GILA RIVER BASIN 

San Pedro River at Charleston, Ariz.

395

Location.- Water-stage recorder, lat. 31°37'40", long. 110°10'30", in NE^NE^ sec. 11, T. 

21 5., R. 21 E., in Spanish land grant of San Juan de las Boquillas y Nogales, at 

highway, bridge a quarter of a mile south of Charleston, 1^ miles upstream from Charleston dam site, 8j miles upstream from Babocomari River, and 29 miles upstream from 

Benson. Datum of gage is 3,954.26 feet above mean sea level, datum of 1929.

Drainage area.- 1,220 square miles, of which 696 square miles is in Mexico.

Records available.- January 1904 to August 1906 (January and February 1904, gage heights 

only}, October 1910 to August 1912 (discharge measurements and some gage heights), 

September 1912 to September 1949.

Average discharge.- 38 years (1905, 1912-49), 71.2 second-feet.

Extremes.- Maximum discharge during year, 6,720 second-feet July 24 (gage height, 7.65 

reet); minimum, 1.4 second-feet July 15, 16.

1S48-49: Maximum discharge, 31,000 second-feet Aug. 13, 1940 (gage height, 13.1 

feet, site and datum then in use), from rating curve extended above 8,500 second-feet 

on basis of slope-area determination at gage height 21.9 feet; minimum, 1.1 secondfeet July 14, 15, 1948.

Maximum discharge known, about 98,(JOO second-feet Sept. 28, 1926 (gage height, 21.9 

feet, site and datum-then in use, from floodmarks), by slope-area measurement.

Remarks.- Records good except those for periods of fragmentary or no gage-height record, 

which are poor. Diversions above station-for irrigation.

Revisions (water years).- W 119: 1939(m.).

Discharge, In second-feet,-water year October 1943 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

f26 

f22 

19 

17 

14

13 

12 

11 

10 

9.9

9.9 

8.9 

8.9 

8.4 

.8.4

8.4 

9.4 

10 

12 

11

11 

9.9 

9.9 

9.4 

9.4

8.9 

10 

10 

11 

11 

11

Nov.

10 

10 

9.9 

9.4 

9.4

9.9 

10 

9.9 

9.9 

11

10 

11 

11 

11 

11

11 

11 

10 

10 

11

11 

12 

12 

12 

12

12 

12 

11 

11 

11

Dec.

11 

11 

12 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

12 

12 

14 

16 

18

24 

29 

46 

31 

23 

22

Month

Octo 

Hove 

Deeei

Ca

Janu 

Febr 

Hare 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

Jan.

22 

22 

21 

2O 

21

19 

20 

21 

24 

24

25 

23 

45 

219 

85

56 

43

37 

32 

30

27 

26 

26 

25 

27

35 

38 

29 

26 

26 

26

Feb.

24

25 

22 

21 

19

19 

19 

19 

19 

19

19 

22 

143 

263 

207

114 

72 

54 

48 

41

36 

36 

35 

30 

28

26 

26 

26

her. ....................................

 her. ...................................

lendar year 1948 

ary

\

ter year 1948-49 .......................

Mar.

25 

23 

22 

22 

20

20 

20 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

17 

17

18 

18 

18 

18

17

17 

19 

17 

17 

18 

17

Apr.

16 

15 

17 

17 

17

17 

14 

15 

15 

14

15 

14 

15 

IS 

13

13 

13 

13 

13 

13

14 

12 

11 

9.9 

9.9

10 

10 

9.9 

9.9 

9.4

Secondfoot -day a

360.7 

322.4 

468

16,960.8

' 1,120 

1,432 

589 

401.0 

217.3 

394.4 

11,131.7 

4,323.3 

3,024.0

23,783.8

Peak discharge (base, 4.000 see. -ft.).- July 19 (10:30

May

11 

10 

10 

10 

9.9

8.4 

8.1 

8.1 

8.1 

a8

a8 

a7 

a7 

7.4 

7.0

7.4 

7.0 

7.0 

6.6 

6.6

6.2 

6.6 

6.2 

5.4 

5.0

5.0 

4.6 

4.3 

4.0

3.7 

3.7

Maximum

26 

12 

46

1,530

219 

263 

25 

17 

11 

196 

1,880 

1,060 

769

1,880

June

3.4 

3.4 

3.2 

2.9 

3.2

2.9 

2.7 

2.9 

2.9 

2.7

2.3 

2.3 

2.3 

2.1 

1.9

1.9 

61 

25 

196 

f!5

f£.2 

fll 

fll 

6.2

5.0

3.7 

3.2 

2.7 

2.7 

2.7

Minimum

July

2.7 

21 

152 '252

37

25 

20

17 

17 

42

633 

205 

f88 

f66 

f!48

f55 

f38 

585 

1,500 

1,520

381 

1,880 

406 

1,420 

859

151 

84 

59 

48 

324 

f96

8.4 

9.4 

11

1.7

19 

19 

17 

9.4 

3.7 

1.9 

2.7 

7.0 

7.0

1.9

a.m. ) 5,160 sec. -ft.;

Aug.

50 

80 

41 

517 

107

f66 

603 

1,060 

996 

209

98

57 

41 

33 

28

23 

19 

16 

14 

12

11 

11 

57 

48 

58

21 

14 

9.5 

8.9 

7.9 

7.0

Mean

11.6 

10.7 

15.1

46.3

36.1 

51.1 

19.0 

13.4 

7.01 

13.1 

359 

139 

101

65.2

July 22 (2

Sept.

7.0 

37 

79 

196

132

61 

53 

55 

769 

260

218 

55 

268 

320 

102

40 

26 

18 

15 

102

60 

28 

22 

20 

18

16 

14 

12 

11 

10

Runoff In 

acre-feet

715 

639 

928

33,650

2,220 

2,840 

1,170 

795 

431 

782 

22,080 

8,530 

6,000

47,180

p.m.) 5.01C

sec.-ft.; July 24 (9 p.m.) 6.7ZO sec.-ft.j Aug. 8 (8 p.m.) 4,460 sec.-ft.

a No gage-height record; discharge computed on basis of adjoining good record.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
396 GILA RIVER BASIN

Santa Cruz River near Lochiel, Ariz.

Location.- Water-stage recorder, lat. 31°21'30", long. 110°35'40", in Sw£ sec. 11, T. 24 

S., H. 17 E. , unsurveyed, on southern border of Spanish land grant of San Rafael, 1^ 

miles upstream from international boundary and 2| miles northeast of Lochiel.

Drainage area.- 83 square miles.

Records available.- January to September 1949.

Extremes.- Maximum discharge during period, 1,650 second-feet Sept. 13 (gage height, 5.75 

feet), from velocity-area studies; no flow on many days.

Remarks.- Records good except those above 50 second-feet, which are fair, and those for 

Jan. 1-19, which are poor.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

< 0.2

.2

.1 

.1 

.2 

.2 

.3

.2

.1 

.1 

.1 

.2 

.1

Feb.

0.1 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.2

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.2

Month

Oeto 

Nove

Dece

Ca

Janu 

Febn 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Th

lendar year 

az*y

Mar.

0.2

.1 

.1 

.1 

.1

.1 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Apr.

0.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1.

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Secondfoot-days

5.7 

3.3 

3.3 

3.8 

3.0 

0 

121.0 

319.0 

291.5

-

May

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.1 

.1 

.1 

.1

.2 

.1 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

.2 

.2 

.2 

.2 

0 

39 

199 

214

-

June

Minimum

July

0 

.3

.1 

0 

.2

.2 

.2 

.2 

.2

14

.6 

1.0 

.2 

.2 

.2

.1 

.1 

.1 

0 

30

.4 

1.5 

39 

30 

1.0

.2 

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 0 - 

0 

0 

0 

0

-

Aug.

0

12 

4 

85

12 

199 

3

0 

0

0 

0

0 

0 

0 

0 

0 

0

Mean

0.18 

.12 

.11 

.13 

.10 

0 

3.90 

10.3 

9.72

-

.1 

.1

.9 

.8

.0 

.2

.2

.1 

.1 

.1 

.1

.1 

.1

.1 

.1

.3 

.6

Sept.

0 

0 

12 

27 

1.8

.2 

.1 

O 

0 

0

0

214 

9.5 

1.2

.4 

.2 

.2 

.3 

.2

0 

0 

0 

0 

0

0 

0 

.2

.1 

.1

Runoff In 

acre-feet

11 

6.5 

6.5 

7.5 

6.0 

0 

240 

633 

578 .

1,490

Peak discharge (base, 400 see.-ft.).- July 10 (5:30 p.m.) 400 sec.-ft.j July 23 (4:30 p.m.) 599 

sec.-ft.; Aug. 5 (lZ:30 a.m.) 802 sec.-ft.; Aug. 8 (1:30 p.m.) 1,600 sec.-ft.; Sept. 13 (4!30 p.m.) 

1.650 sec.-ft.

Note.- No gage-height record Jan. 1-19; discharge computed on basis of weather records and record for Sonolta Creek near Patagonia.
GILA RIVER BASIN 397 

Santa Cruz River near Nogales, Ariz.

Location.- Water-stage recorder, lat. 31°20'40", long. 110°51'05", in NW£ sec. 18, T. 24

 S., K. 15 E., unsurveyed, in Spanish land grant of Buena Vista, three-quarters of a 

mile downstream from international boundary and 5| miles east of Nogales.

Drainage area.- 542 square miles, of which 357 square miles is in Mexico.

Records available.- May 1930 to December 1933, July 1935 to September 1949. March to November 19U7 ana April 1909 to December 1912 (discharge measurements and fragmentary 

gage-height record), January 1913 to June 1920, April 1921 to June 1922 at or within 

three-quarters of a mile of Yerba Buena dam site, 5^ miles downstream.

Average discharge.- 17 years (1903-33, 1935-49), 18.0 second-feet.

Extremes.- Maximum discharge during year, 6,350 second-feet Sept. 14 (gage height, 10.5

 feet); minimum daily discharge, 0.3 second-foot on several days in October and Novem1930-49- Maximum discharge, 12,000 second-feet Aug. 31, 1935 (gage height, 12.3 

feet), on basis of slope-area determinations at gage heights 9.5 and 10.9 feet; no flow 

for several days or parts of days each year.

Remarks.- hecords good except those above 10 second-feet ana those after July 1, which are 

rair, and those for periods of fragmentary or no gage-height record, which are poor. 

Many small diversions above station for irrigation.

Revisions (water years).- W 959: 1935(M).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5

.7 

.7 

.7 

.7

.7 

.5

Nov.

0.5 

.5 

.4 

.3 

.3

.4 

.5 

.5 

.5 

.4

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.7 

.7

.7

.7 

.7 

1.0 

1.0

Dec.

1.0 

1.0 

1.2 

1.2 

1.5

1,2 

1.4 

1.7 

2.3 

2.3

2.3

2.0 

2.0 

2.0 

2.0

2.6 

1.7 

1.2 

1.0 

1.0

1.0 

2.3 

3.3 

1.7 

2.3

2.9 

6.7 

4.5 

3.3 

3.3 

3.3

Jan.

3.3 

3.7 

4.5 

3.3 

3.3

3.3 

3.7 

3.7 

6.1 

5.5

5.5 

5.5

229 

71 

12

9.2 

7.3 

4.5 

3.7 

3.7

2.6 

3.3 

4.3 

6.2 

27

66 

6S 

57 

49 

37 

34

Feb.

30 

25 

20 

17 

14

12 

16

12 

8.6 

8.6

8.6 

19 

135 

153 

141

112

91 

74 

62 

49

42 

36 

33 

28 

25

22 

20 

18

Month

Octo 

Hove 

Dece

Ca

Jarra 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Lendar year . 1948 . . .

ter year 1948-49 .......................

Peak discharge ~fbase~, 27000 sec. -ft.).- Ju

sec. -ft.; July 20 {4 p.m.) 5,350 sec. -ft.; J

Mar.

17 

16 

15 

13 

11

12 

10 

9.S 

6.7 

5.5

6. 

7.

7. 

6.

4.

4. 

5. 

6. 

4.

4. 

4.

4.! 

6.

6. 

4. 

3. 

4. 

3.3 

3.3

Apr.

.1 

.7 

.7 

.5 

.5

.1 

.1 

.9 

.3 

.9

.9 

.5 

.3 

.0 

.7

.0 

.7 

.0 

.7 

.7

.7 

.4 

.7 

.2

.4

.2 

.2 

.2 

.2 

.0

Secondfoot-days

14.8 

15.5 

67.2

4,439.9

746.2 

1,231.8 

225.2 

73.6 

37.8 

29.6 

1,935.4 

1,135.2 

1,530.3

7,042.6

ly~3 (3T30~ p 

uly 29 (4:30

May

1.0 

1.0 

1.0 

1.2 

1.7

1.7 

.9

1.0 

.9 

.9

1.0 

1.2 

1.2 

1.2 

1.4

1.7 

2.0 

1.4 

1.2 

1.4

1.7 

2.0 

1.7 

1.0

1.0

.9 

1.0 

1.0 

.9 

.9 

.7

Maximum

0.7 

1.0 

6.7

305

229 

153

17 

4.9 

2.0 

2.0 

331 

418 

916

916

June

0.7 

.9 

.9 

1.4 

1.4

1.4 

1.7 

1.7 

2.0 

1.7

1.4 

1.4 

1.2 

1.0 

.9

.7 

.9 

.9 

.9 

.9

.9 

.7 

.4 

.4 

.5

.5 

.5 

.5 

.5

.7

July

0.7 

147 

164 

f39 

f61

al5

alO 

a5 

a3 

f31

a5 

a3 

a2 

al

al

al 

f225 

108 

12 

331

f67 

144 

55

61 

84

20 

10 

6.7 

255 

50 

f!8

Aug.

f8.0 

5.9 

45 

54 

186

21 

13 

418 

285 

33

14 

7.3 

5.5 

3.7

2.9

2.6 

2.3 

2.3 

2.0 

2.0

1.7 

2.3 

2.9 

2.0 

2.6

2.0 

2.0 

1.7 

1.7 

1.4 

1.4

Minimum Mean

0.3 0.48 

.3 .52 

1.0 2.17

0 12.1

2.6 24.1 

S.6 44.0 

3.3 7.26 

1.0 2.45 

.7 1.22 

.4 .99 

.7 62.4 

1.4 36.6 

1.7 51.0

.3 19.3

Sept.

1.7 

1.7 

1.7 

79 

f27

f4.9 

f4.9 

f2.9 

24 

82

4.5 

4.1 

240 

916 

47

13 

10 

7.4 

6.3 

5.9

5.4 

5.0 

4.2 

4.2 

4.6

5.0 

5.0 

4.2 

4.2 

4.5

Runoff In 

acre-feet

29

31 

133

8,810

1,480 

2,440 

447 

146 

75 

59 

3,840 

2,250 

3,040

13,970

.a~.) 2,750 sec. -ft.; July 17 (9 p.m.) 2,300 

p.m.) 3,310 sec. -ft. j Aug. 8 (1:30 p.m.)

2,840 sec.-ft".; Sept. 13 (7 p.m.) 4,960 sec.-ft.; Sept. 14 (6 p.m.) 6,350 sec.-ft. 

a Ho gage-height record; discharge computed on basis of adjoining good record, 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
398 GILA RIVER BASIN 

Santa Cruz River at Tucson, Ariz.

Location.- Water-stage recorder, lat. 32°13'15", long. 110°58 I 50", in NE^NE^- sec. 14, T. 

14 s., R. 13 E., at Congress Street Bridge in Tucson. Datum of gage is 2,327.16 feet 

above mean sea level, datura of 1929.

Drainage area.- 2,190 square miles, of which 403 square miles is in Mexico.

Records available - October 1905 to September 1949. Prior to October 1917 daily discharge 

record fragmentary; monthly discharge frequently estimated from information available 

to complete period.

Average discharge.- 44 years (1905-49), 21.4 second-feet; median of yearly mean discharges, 

J.6 second-feet.

Extremes.- Maximum discharge during year, 3,800 second-feet Aug. 8 (gage height, 6.63 

reet); no flow during greater part of year.

1905-49: Maximum discharge, about 16,000 second-feet Dec. 23, 1914, from rating 

curve extended above 9,000 second-feet; no flow during greater part of each year.

Remarks.- Records good except those for periods of iragmentary or no gage-height record, 

which are poor. Diversions above station for irrigation of about 2,200 acres in 

Mexico and 12,000 acres in United States, and small diversions for municipal supply 

and mining.

Revisions (water year).- W 859: 1915(M).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

3 

0 

0

0 

0 

2 

18 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan.

0 

0

0 

0

o

0 

0 

0 

0 

0

0 

0 

0 

0 

3

2 

0 

0 

0 

0

0 

0 

0 

0 

f .9

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

n

i

.3 

.2 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Way.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar. Apr.

Secondfoot-dayB

20 

0 

0

4,380

5.9 

18.5 

0 

0 

0 

0 

842.5 

2,563.1 

1,846

. 5,296.0

May

Maximum

18 

0 

0

1,130

3 

17 

0 

0 

0 

0 

179 

1,190 

604

1,190

June July

0 

0 

0

43 

4

.2 

2 

4 

15 

2

1

0

o

0

0 

0 

8 

17 

84

130 

157 

179 

85 

10

4 

.6 

.6 

.1 

0 

96

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

1 

10 

.1 

261

433

3 

al 

1,190 

647 

16

al 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0.6 

0 

0

12.0

.19 

.66 

0 

0 

0 

0 

27.2 

82.7 

61.5

14.5

Sept.

0 

0 

0 

1 

34

a2 

0 

0 

56 

fS67

f6 

0 

212 

510 

604

2 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

27. 

f25 

0

Runoff In 

acre-feet

40 

0 

0

8,690

12 

37 

0 

0 

0 

0 

1,670 

5,080 

3,660

10,500

Peak discharge (base, 1.700 sec.-ft.).- July 23 (10 p.m.) 2,010 aec.-ft.j Aug. 5 (8:30 a.m.) 2,670 

sec.-ft.; Aug. 8 (2:30 p.m.; 3,800 see.-ft.; Sept. 10 (3:30 a.m.) 1,960 Beo.-ft.j Sept. 14 (9 a.m.) 

2,210 see.-ft.; Sept. 15 (8 a.m.) 2,540 sec.-ft.

a No gage-height record; discharge computed on basis of adjoinltig good record and engineers' 

field estimates and observations.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
GILA RIVER BASIN 

Santa Cruz River near Laveen, Ariz.

399

Location.- Water-stage record, lat. 33°13', long. 112°10', in NE^NE^ sec. 29, T. 23., 

H. 2 K., on Gila River Indian Reservation, at highway bridge 3 miles south of Komatke, 

9 miles upstream from mouth, and 9j miles south of Laveen. Datum of gage is 1,020.86 

feet above mean sea level, datum of 1929, Phoenix-Picacho supplementary adjustment of 

1949.

Drainage area.- 8,970 square miles.

Records available.- January 1940 to September 1946, December 1947 to September 1949.

Extremes.- Maximum discharge during year, 1,780 second-feet Sept. 17 (gage height, 13.61 

feet); no flow Oct. 28 except for slight seepage flow amounting to less than 0.05 second-foot.

1940-46, 1947-49: Maximum discharge, 5,020 second-feet Sept. 21, 1946 (gage height, 

16.70 feet); no flow on several days in 1940, 1948, and 1949 except for slight seepage 

flow amounting to less than 0.05 second-foot.

Remarks.- Records good above 5 second-feet, fair below. Many diversions above station, 

mostly by pumping from the underground basin, for irrigation and municipal uses.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.1 

.1 

.1 

.1

.3 

.2

1 

.3

.2 

.2 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1

.1 

0 

.1 

.1 

.1

Nov.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.2

.2

.2

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.2

.3

.2 

.3 

.3 

.3

Dec.

0.3 

.4 

.3 

.3 

.4

.5

.4 

.3 

.3 

.3

.4 

.4 

.5 

.5 

.5

.6 

.7 

.7 

.7 

.7

.7 

.8 

.9 

.8 

.9

.9 

1

.7 

.7 

.7

Jan.

0.7 

.6 

.6 

.7 

.7

.7 

.8 

.9 

1

1

1

1 

1 

1 

1

1 

1 

1 

1 

1

1

1 

1

1

3

9

1 

1

1 

1

Feb.

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1

1 

1

1 

1

1 

1 

1 

1 

Z

Z 

2

2 

2

2

2 

1

2

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194£

ter year 1948-49 .......................

Peak discharge (base, 300 sec. -ft.).- July

ft.; Aug. 7 (4 p.m. J 1,02O sec. -ft.; Sept. 1 

ft.; Sept. 14 (4:30 p.m.) 307 sec. -ft.; Sept

Mar.

1

1 

1

1

2

Z 

Z 

Z

z

z

z 

z

z 

z 

z

z 

z

2

Z

z

z 

z 

z

3 

3

3 

3 

3 

3 

4 

4

Apr.

5 

6 

4 

6 

4

3 

3 

3 

3

2

3 

2

2 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

2

2

2 

2 

Z

Z 

1

May

1

2 

2 

3

2

2 

1 

1 

1 

.9

.9 

.8 

.7 

.7 

.7

.6 

.6 

.6 

.6 

.6

.6 

.6 

.5 

.5 

.5

.5 

.4 

.4 

.3 

.3 

.3

fo^Says » 

4.8 1 

5.1 .3 

18.0 1

1,444.7 495

39.7 9 

36 2 

68 4 

89 6 

27.6 3 

177.9 129 

314.6 159 

914 507 

3,558.0 1,280

5,252.7 1,280

June

0.3 

.2 

.2 

.2 

.2

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2

.8

.2 

.2 

129

21 

7

4 

f3

tz

f2 

f]

fl 

f.8 

f2 

f.8 

.7

Minimum

July

0.2

1 

2 

2 

2

1 

.4

1

3

159 

27 

7 

6 

5

5 

4 

3 

3 

3

3 

2

1

3

3 

2 

3 

6 

8 

45

Aug.

11 

5 

4 

3 

10

830 

507 

89

12 

11

3

3

3 

3 

3 

3 

3

Sept.

2 

2 

2 

1

1

.8 

.3 

.5

.3 

191

373 

173 

56 

153 

683

126- 

1,280 

375 

84 

34

f8 

f3 

1 

.6 

1

2 

2 

1 

1 

.5

 .-_ Runoff in Mean acre-feet

0 0.15 9.5 

.1 .17 10 

.3 .58 36

0 3.95 2,870

.6 1.88 79 

1 1.3 71 

1 2.2 135 

1 3.0 177 

.3 .89 55 

.2 5.93 353 

.2 10.1 624 

3 29.5 1,810 

.3 119 7,060

0 14.4 10,420

11 (2:30 p.m.) 373 sec. -ft.; Aug. 6 (8 p.m.) 1,400 sec. 

0 (4 p.m.) 448 sec. -ft.; Sept. 11 (6:30 p.m.) 565 sec.- 

. 15 (11 a.m.) 1,280 see.-ft.; Sept. 17 (4 p.m.) 1,780

sec.-ft.

f Computed from partly estimated gage heights.
400 GILA RIVER BASIN

Sonoita Creek near Patagonia, Ariz.

Location.- Water-stage recorder, lat. 31°30'00", long. 110°49'00", in SEj-SW^ sec. 21, T. 

22 S., R. 15 E.,,5 miles downstream from Patagonia. Datum of gage is 3,818.61 feet 

above mean sea level, datum of 1929.

Drainage area.- 210 square miles.

Records available.- June 1930 to December 1933, July 1935 to September 1949.

Average discharge.- 17 years (1930-33, 1935-49), 6.77 sejond-feet.

Extremes.- Maximum discharge during year, 5,790 second-feet Aug. 8 (gage height, 9.4 feet); 

no flow on many days.

1930-49: Maximum discharge, 14,000 second-feet Sept. 30, 1946 (gage height, 13.0 

feet), bj slope-area method; no flow for all or parts of several days during summer of 

each year since 1940 when station was moved to present site.

Remarks.- Records good except those for July to September, which are fair, and those for 

periods of ice effect or fragmentary or no gage-height record, which are poor. Several 

small diversions above station for irrigation and mining.

Revisions"(water year).- W 1059: 1934(M).

Discharge, In second-feet, water year October 1948 to September 19*9

Day

1 

2 

3 4'

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.5 

.4 

.4 

.5

.6 

.5 

.4

.4 

.5

.6

.4 

.4 

.4 

.4

.4

.6 

a. 6 

a. 6 

a. 7

.7

.6 

.6 

.6 

.6

.7 

.7 

.7 

.8 

.8 

.9

Nov.

0.9 

.7 

.7 

.7 

.7

.6 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.9

.9 

.9

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0

1.1

Dec.

1.1 

1.2 

1.1 

1.2 

1.3

1.4 

1.4 

1.3 

1.2 

1.3

1.3 

1.3

1.3 

1.2 

1.2

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.6 

1.4 

1.6

1.5 

5.1 

2.6 

1.9 

1.9 

2.0

Jan.

2.1 

2.5 

2.6 

b2.0 

bl.9

1.8 

1.8 

1.9 

13 

8.2

3.6 

2.2 

6.2 

8.6 

4.8

5.0 

4.8 

4.0 

3.8 

3.8

3.6 

3.1 

3.1 

3.8 

8.9

9.5 

11 

8.6 

6.4 

5.6 

4.5

Feb.

4.8 

4.3 

3.8

4.0 

4.0

4.3

1.3 

4.0 

3.6

4.3 

4.8 

8.6

22 

29

22 

17 

13 

9.5 

8.2

6.4 

5.4 

4.5 

4.5 

4.3

3.6 

3.1 

3.1

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

ber................. ....................

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

2.8 

2.8 

3.1 

3.3 

3.3

3.6 

4.0 

4.0 

4.3 

4.3

4.0 

4.0 

4.0 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

3.6

3.3 

3.3 

3.3 

3.3 

3.6

3.6 

3.3 

3.3 

3.3 

3.1 

2.8

Apr.

Secondfoot-days

17.6 

25.1 

47.5

2,061.8

152.7 

214.2 

110.1 

91.0 

37.2 

4.0 

275.2 

1,090.5 

466.0

2,531.1

3.1 

3.1 

3.3 

3.3 

3.3

3.3

3.6 

3.3 

3.3 

3.1

3.1 

3.1 

3.1

2.8

3.1 

3.3 

3.3 

3.3 

3.6

3.6 

3.3 

3.1 

3.1 

2.8

2.5 

2.2 

2.1 

1.9 

1.9

May

1.9 

1.9 

1.9 

1.8 

1.6

1.6 

1.5 

1.4 

1.4 

1.4

1.4 

1.4 

1.4

1.4

1.5 

1.3 

1.2 

1.2 

1.2

1.0 

1.0 

.9 

.7 

.7

.6 

.6 

.6 

.5 

.5 

.3

Maximum

0.9 

1.1 

5.1

217

13 

29 

4.3 

3.6 

1.9 

.3 

126 

910 

242

910

June

0.3 

.3 

.3 

.3 

.2

.2

.2

.2 

.2

-2 

.2 

.2

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

0 

0 

0

0 

0 

0

o 

o

July

0 

0 

0 

6.7 

.5

43 

a2 

al 

al 

a. 5

a. 2 

a. 2 

a. 2

a.l

a.l 

a.l 

0 

.1 

4.1

3.3

27 

126 

22 

a5

a3 

a2 

a2 

a2 

f!9 

f4.0

Minimum

0.4 

.6 

1.1

0

1.8 

3.1 

2.8 

1.9 

.3 

0 

0 

1.7 

2.0

0

Aug.

f3.3 

f3.3 

f5.3 

f3.3

2.6

2.1 '12 

910 

70 

14

7.9 

6.4 

5.1

3.7

3.5 

2.9 

2.3 

2.4 

2.6

2.3 

2.6 

2.4 

2.2 

2.3

2.2 

2.0 

1.8 

2.0 

1.7 

1.7

Mean

0.57 

.84 

1.53

5.63

4.93 

7.65 

3.55 

3.03 

1.20 

.13 

8.88 

35.2 

15.5

6.93

Sept.

2.2 

2.0 

2.0 

36 

3.2

f2.3 

f2.2 

f2.0 

f47 

a5

a3 

f7.3 

242

18

5.6 

4.2 

3.3 

3.3 

3.3

a3

a3 

a3 

a3 

a3

a3 

a3 

a3 

3.1 

a3

Runoff In 

acre -feet

35 

50 

94

4,080

303 

425 

218 

180 

74 

7.9 

546 

2,160 

924

5,020

Peak discharge (base. 1,200 see.-ft.).- July 6 (4:3O p.m.) 1,330 sec.-ft.; July 23 (3 p.m.) 2,450 

sec.-ft.; Aug. 8 (1:38 p.m.) 5,790 sec.-ft.; Sept. 9 (3:30 p.m.) 1,580 sec.-ft.; Sept. 13 (7 p.m.) 

3,130 sec.-ft. r

a No gage-height record; discharge computed on basis of adjoining good record.

b Stage-discharge relation affected by Ice.

f Fragmentary gage-height record; discharge comouted from partly estimated gage heights.
GILA RIVER BASIN 

Tucson Arroyo at Vine Avenue, Tucson, Arlz.

401

Location.- Water-stage recorder and concrete low-water control, lat. 32°13 1 05", long.

 110n 57'00", In SWjNEi sec. 18, T. 14 S., R. 14 E., at Vine Avenue, a quarter of a it 

downstream from Arroyo Chico and 2r miles upstream from mouth. Datum of gage Is 

2,411.9 feet above mean sea level (city of Tucson bench mark).

Drainage area.- 21.5 square miles.

Records available.- June 1944 to September 1949.

Extremes.- Maximum discharge during year, 364 second-feet Sept. 28 (gage height, 5.56 

feet); no flow most of year.

1944-49: Maximum discharge, 4,100 second-feet July 24, 1948 (gage height, 9.9 

feet); no flow most of each year.

Remarks.- Records good.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

35

36 

37 

28 

29 30' 

31

Oct.

0 

0 

O 

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0

.1

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0 

0

Nov. Dec.

0 

0 

0

o

0

0 

0 

0 

0

o

0

o

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.3

.1

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Jan.

0

o

0 

0

o

0 

0

o 

.1

0

0

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.3

0 

0 

0 

0 

0 

0

Feb.

lendar year 1948 

ary

ter year 1948-49 .......................

Peak discharge (base, 200 sec. -ft.).- Sept

Mar. Apr.

Secondfoot-days

0.1 

0 

.4

329.8

.4

0

o

0

o

0 

4.0 

38 

81.2

124.1

. 13 (2:30 p

May

Maximum

0.1 

0 

.3

287

.3 

0 

0 

0 

0 

0 

4.0 

38 

44

44

June

Minimum

July

O 

0 

0 

0 

0

0 

0 

0 

0 

0

4.0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

0 

0 

38 

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0

0

0 

0 

0

o

0 

0

Mean

0.003 

0 

.01

.90

.01 

0 

0 

0 

0 

0 

.13 

1.2 

2.71

.34

.m.) 212 sec. -ft.; Sept. 28 (9:30

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

29 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

3.1 

44 

5.1

0 

0

Runoff In 

acre-feet

O.E 

0 

.8

655

.8 

0 

0 

0 

0 

0 

7. 

75 

161

246

p.m.) 364
402 GILA RIVER BASIN 

Rillito Creek near Tucson, Ariz.

 Location.- Water-stage recorder, lat. 32°17'40", long. 110°59'05", in SW£SE£ sec. 14, T. 

13 s., R. 13 E., 1,100 feet downstream from Pima Canyon, 1,803 feet downstream from 

bridge on U. S. Highway 89, 4^ miles upstream from mouth, and 5 miles north of Tucson. 

Datum of gage is 2,288.23 feet above mean sea level, datum of 1929, supplementary adjustment of 1949.

Drainage area.- 916 square miles.

Records available.- October 1908 to September 1949 (prior to October 1917, monthly dlacharge onlv).

Average discharge.- 41 years (1908-49), 20.8 second-feet; median of yearly mean discharges,

b.3 second-reet.

Extremes.- Maximum discharge during year, 1,640 second-feet Sept. 15; no flow during greater part of year.

1911-49: Maximum discharge, 28,000 second-feet Dec. 23, 1914, estimated by the 

Arizona. Agricultural Experiment Station in 1941 on basis of their original flood record; 

no flow during greater part of each year.

A discharge of 24,000 second-feet occurred Sept. 23, 1929.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are poor. Several small diversions above station for irrigation and for municipal and 

domestic supply, mostly by pumping from ground-water.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0

o

0 

0

o

0 

0 

0

o 

o

o 

o

0'8

0 

0

o

0

o

0

o

0 

0 

0

0 

f!68 

96 

0 

0 

0

Jan.

0 

O 

O

o

0

o 

o 

o

75 

72

4 

0 

316 

164 

f20

f.6 

0 

0 

0 

0

0 

O 

O 

0 

0

0

o 

o

0 

0 

0

Feb.

O 

0 

0

o

0 

0

o 

o 

o

0 

0

o 

o

0 

0

0

o

0 

0 

0

o 

o

0

o

.9

o

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 ...............

Mar.

o 

o 

o 

o

0 

0

o

4

o

0

o 

o 

o 

o 

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

o

0 

0 

0

Apr.

0 

0 

O 

0 

O

0 

O 

.2 

0 

0

O 

O 

0 

0 

0

0 

0 

0 

O 

O

0 

0 

O 

0 

0

0

o

0 

0 

0

£££.

0 

0 

264

740.6

651 .'S 

.9 

4 

.2 

O 

0 

32.3 

130.8 

388.2

1,472.0

May

Maxiau.

0

o

168

168

316 

.9 

4 

.2 

0 

0 

17 

91 

237

316

June

Minimum

July

0 

0

o

0 

0

o

0 

0

o 

c

0 

0 

0 

0

o 

o

0 

0 

0 

0

0 

0

o

17 

.3

o

0 

0 

0 

9 

6

0 

0 

0

0

0 

0 

0 

0 

o 

o 

0 

0 

o

0

Aug.

0 

O

c

3 

29

.7 

.2 

91 

3

1

O 

0 

O 

0 

0

0 

0 

0 

0

o

0 

0 

2 

.9

O

0 

0 

0 

0 

0

o

Mean

0

o

8.5

2.02

21.0 

.03 

.1 

.01 

0 

O 

1.04 

4.22 

12.9

4.03

Sept.

0 

0

o

3 

3

1 

0 

0

o

0

0 

0 

129is

237

f.2 

0 

0 

0 

0

0 

0 

0 

O0

0 

0 

0 

0 

0 

0

Runoff In 

ao re-feet

0

o

524

1,470

1,290 

1.8 

7.9 

.4 

0 

0 

64 

259 

770

2,920

Peak discharge (baseT'J760Q see.-ft.).- Sept. 13 (3:30 p.m.) 1.300 see.-ft.; Sept.'15 (4:30 a.m.) 

1,640 sec.-ft.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
GILA RIVER BASIN 

Sabino Creek near Tucson, Ariz. 

Location.- Water-stage recorder and concrete control, lat. 32°19'00", long. 110°48'35'V

sec. 9, T. 13 S., R. 15 E., half a mile north of Coronado National Forest 

boundary and 12 miles northeast of Tucson.

Drainage area.- 34.0 square miles.

Records available.- July 1904 to June 1912 (monthly discharge only), June 1932 to SepEemoer 1949.

Average discharge.- 24 years (1904-11, 1932-49), 12.3 second feet.

Extremes.- Maximum discharge during year, 1,430 second-feet Aug. 8 (gage height, 5.78 

reet); no flow June 26 to July 1.

1932-49: Maximum discharge, 4,100 second-feet Mar. 3, 1938 (gage height, 7..13 

feet), from rating curve for spillway of dam 1,000 feet downstream, extended above 

2,500 second-feet by logarithmic plotting; no flow at times during most years.

Remarks.- Records excellent except those above 50 second-feet, which are good, and those 

lor period of fragmentary gage-height record, which are fair. No diversions above 

station except for domestic supply. Slight regulation since 1933 by several small 

dams constructed to provide recreational lakes.

403

Discharge, In second- feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

25

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

Si

Oct.

fO.5 

f.4 

.3 

.2 

.2

.-2 

.2 

.1 

.1 

.08

.08 

.06 

.06 

.06 

.06

.06 

.08 

.1 

.2 

.1

.1 

.08 

.06 

.06 

.06

.06 

.06 

.1 

.1 

.1 

.2

Nov.

0.2 

.2 

.2 

.1

.1

.1 

.1 

.08 

.08 

.08

.08 

.06 

.06 .06' 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

Dec.

0.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.OS

.08 

.08 

.1 

.06 

.06

.06 

»06 

.06 

.06 

.06

.06 

11 

51 

24 

14

56 

357 

131 

45 

24 

17

Jan.

25 

21 

17 

13 

11

11 

12 

11 

169 

106

64 

84 

344 

139 

74

49 

36 

28 

24 

23

21 

21 

23 

21 

23

21 

20 

19 

17 

14 

13

Feb.

12 

12 

11 

9.8 

9.0

8.6 

8.2 

9.O 

8.6 

9.4

11 

10 

12 

12 

10

15 

2O 

25 

29 

29

30 

36 

52 

53 

49

38

33 

26

Month

Oeto 

Hove 

Deee

Ca

Janu 

Febr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

her. ....................................

nber. . .

lendar year 1948

uai*v

i.......................................

ter year 1948-49 .......................

Mar.

23 

20 

19 

21 

28

26 

61 

58 

35 

26

21 

18 

16 

14

13

12 

12 

11 

9.8 

9.4

9.0 

7.9 

7.2 

6.6 

7.6

8.2 

11 

17 

15 

12 

9.8

Apr.

13 

15 

19 

27 

40

46 

50 

54 

44 

33

27 

23 

20 

17 

16

15 

13 

12 

11 

10

9.8 

8.6 

8.2 

8.2 

7.9

7.6 

7.2 

6.3 

5.5 

4.7

Secondfoot-days

4.12

731.36

1.50O.96

1,474 

589.6 

564.5 

579.0 

36.84 

.52 

166.60 

512.8 

118.12

4,779.92

Peak discharge (base, 150 sec. -ft.).- Dec. 27 (2 p.m.)

May

4.2 

3.7 

3.3 

2.0 

2.6

2.4 

2.2 

2.1 

1.8 

1.5

1.3 

1.2 

1.0 

.8 

.8

.8 

.8 

.7 

.5 

.5

.4 

.3 

.2 

.2 

.2

.1 

.1 

.08 

.06 

.06 

.04

Maximum

0.5 

.2 

357

357

344 

55 

61 

54 

4.2 

.04 

54 

229 

71

357

June

0.04 

.04 

.03 

.03 

.03

.03 

.03 

.02 

.02 

.02

,O2 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.01 

.01

.01 

.01 

.01 

.01 

.01

O 

O 

O 

O 

0

July

O 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

14 

12 

4.9 

3.1 

1.9

1.4 

.8 

.7 

.5 

.8

2.1 

1.6 

10 

24 

9.4

5.5 

3.3 

2.6 

1.9 

12 

54

Aug.

8 

6 

10 

8 

20

7 

48 

229 

71 

29

17 

11 

8 

6 

5

4 

3 

2 

2 

2

1 

1 

1 

1

Minimum Mean

O.Og O.133 

.06 .082 

.06 23.6

0 4.1O

11 47.5 

8.2 21.1 

6.6 18.2 

4.7 19.3 

.04 1.19 

0 .017 

0 5.37 

.1 16.5 

.06 3.94

0 13.1

9 

O

6 

9

2 

6 

5

7 

7 

1 

6 

2

8 

8 

5 

3 

9

.8 

.6 

.5 

.3

.2

.1

Sept.

O.I 

.06 

.06 

.1 

.08

.06 

.06 

.2 

.2 

.3

.2 

.2 

71 

20 

6.6

3.9 

2.7 

2.1 

1.8 

1.4

1.3 

1.0 

.8 

.8 

.6

.5 

.5 

.5 

.5 

.5

Runoff In 

acre-feet

8.2 

4.9 

1.45O

2,980

2,920 

1,170 

1,120 

1,150 

73 

l.O 

330 

1,020 

234

9,480

916 sec. -ft.; Jan. 9 (2 p.m.) 277 sec. -ft.;

(12:30 p.m.) 430 see.-ft. ' "

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
404 GILA RIVER BASIN 

Salt River near Chrysotile, Ariz.

Location.- Water-stage recorder, lat. 33°48', long. 110°30", in sec. 5, T. 5 N., R. 18 E., 

unsurveyed,'on San Carlos Indian Reservation, 1,200 feet upstream from bridge on U. S. 

Highway 60, 5? miles northeast of Chrysotile, 8 miles upstream from Cibecue Creek, and 

33 miles downstream from confluence of Black and White Rivers. Datum of gage is 

3,354.57 feet above mean sea level, datum of 1929.

Drainage area.- 2,830 square miles.

Records available^- September 1924 to September 1949.

Average discharge.- 25 years, 637 second-feet.

Extremes.- Maximum discharge during year, 14,200 second-feet Jan. 14 (gage height, 8.65 

 feet); minimum, 98 second-feet Oct. 16-18 (gage height, 1.41 feet).

1924-49: Maximum discharge, 52,900 second-feet Feb. 7, 1937 (gage height, 15.18 

feet); minimum, 65 second-feet July 8, 9, 1946 (gage height, 1.25 feet).

iFJood peak of 74,000 second-feet (gage height, 18 feet, from floodmarks), from rating 

curve extended above 52,000 second-feet by logarithmic plotting occurred prior to 1924 

_and is believed to be the peak of flood of Jan. 19, 1916.

Remarks.- Records excellent except those for periods of fragmentary or no gage-height 

record, which are fair. Several small diversipns above station for irrigation and one 

transmountain diversion from Black Riverto Eggle "Creek Basin for mining and treatment of 

ore (see p. 390).

Revisions (water years).- W 859: 1926, 1927, 1929, 1930, 1934, 1936. W 899: 1927, 1932,

1937, 193(5 (M) .

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

5 

4 

5

6

7 

8 

9 

10

11 

12 

15 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

26 

29 

5O 

31

Oct.

114 

114 

114 

111 

108

106 

106 

104 

101 

101

101 

104 

101 

104 

104

98 

98 

101 

111 

124

156 

147 

158 

158 

155

124 

121 

124 

144 

155 

240

Nov.

224 

200 

188 

184 

174

164 

155 

150 

147

141

155 

158 

141 

155 

155

156 

150 

ISO 

130

121

118 

121 

118 

114 

116

121 

124 124- 

114 

111

Dec.

114 

116 

116 

118 

124

116 

116 

116 

118 

127

155 

158 

158 

141 

147

157 

160 

157 

157 

150

144 

a2OO 

a850 

al,050 

aSOO

a650 

al,250 

al,950 

al,450 

a900 

aSSO

Jan.

a 550 

a 500 

a420 

3300 

a210

a!70

8200

a570 

a5,000 

a2,200

81,800 

81,700 

6,050 

7,740 

3,110

1,880 

1,260 

852 

720 

728

697 

674 

1,260 

2,560 

1,720

1,160 

957 

720 

572 

455 

554

Feb.

582 

376 

382 

588 

560

327 

352 

317 

527 

512

302 

312 

332 

360 

382

566 

554 

388 

615 

852

1,110 

1,220 

1,480 

1,860 

1,830

1,670 

1,480 

1,510

Month

Octo 

Nove 

Decei

Ca

Janu. 

Pebn 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Bber .... ..........--.-----------------

lendar year 1948

ter year 1948-49 .......................

Mar.

1,530 

1,540 

1,240 

1,540 

1,600

1,850 

2,050 

4,250 

5,210 

2,560

2,100 

2,120 

2,100 

2,000 

2,020

2,180 

2,560 

2,450 

2,500 

2,650

2,660 

2,210 

2,040 

1,830 

1,650

1,550 

1,390 

1,320 

1,530 

1,560 

1,470

Apr.

1,470 

1,560 

1,260 

1,340 

1,280

1,540 

1,450 

1,650 

1,970 

2,120

2,130 

2,260 

2,630 

3,100 

3,660

3,940 

5,830 

3,540 

3,340 

3,230

3,160 

3,200 

3,490 

3,590 

3,450

3,440 

3,340 

2,940 

2,820 

2,740

Secondfoot-days

3,725 

4,251 

12,555

200,548

44,669 

19,926 

62,420 

79,070 

55,656 

15,104 

14, 582 

15,520 

5,558

510,792

May

2,540 

2,270 

2,070 

1,990 

1,800

1,670 

1,520 

1,560 

1,280 

1,220

1,200 

1,180 

1,140 

1,090 

1,060

1,010 

957 

878 

810 

736

705 

682 

667 

674 

690

728 

777 

785 

752 

728 

667

Maximum

240 

224 

1,950

5,150

7,740 

1,860 

4,250 

5,940 

2,540 

650 

1,150 

2,560 

517

7,740

June

630 

594 

565 

545 

524

504 

485 

466 

441 

447

472 

472 

558 

545 

511

466 

441 

447 

460 

447

429 

376 

354 

338 

322

502 

271 

244 

230 

218

July

210 

222 

248 

239 

230

276 

239 

222 

214 

349

401 

573 

344 

423 

554

520 

558 

416 

522 

1,150

705 

669 

1,070 

975 

797

690 

594 

f504 

f412 

f388 

f488

Minimum

98 

111 

114

74

170 

302 

1,240 

1,260 

667 

218 

210 

146 

133

98

Aug.

f327 

f302 

f570 

f276 

f253

f253 

f284 

1,450 

2,366 

1,890

f 1,220 

f869 

f659 

f558 

491

429 

382 

544 

512 

281

262 

244 

248 

235 

222

193 

182 

170 

159 

149 

146

Mean

120 

141 

405

547

1,441 

712 

2,014 

2,636 

1,150 

437 

464 

501 

185

851

Sept.

139 

135 

155 

156 

149

174 

185 

178 

170 

197

512 

517 

281 

244 

259

222 

201 

195 

182 

167

189 

152 

152 

225 

156

149 

149 

146 

146 

142

Runoff in 

acre-feet

7,380 

8,390 

24,900

397,400

88,600 

39,520 

123,800 

156,800 

70,680 

25,990 

2-8,530 

30,780 

11,020

616,400

Peak discharge (base, 5,500 sec. -ft.}.- Jan. 14 '(12:50 a.m.) 14.200 sec. -ft. j Mar. 8 (1:30 p.m.)

(11:30 p.m.) 4,790 sec.-ft.; Aug. 8 (11:30 p.m.)'4,840 sec.-ft.

3 No gage-height record; discharge computed on basis of recorded range in stage, and records for 

station near Roosevelt.

f Fragmentary gage-height record; discharge computed from wholly or partly estimated gage heights.
GILA RIVER BASIN 

Salt River near Roosevelt, Ariz.

405

Location.- Water-stage recorder, lat. 33°37', long. 110°55' , in M£ sec. 9, T. 3 N., R. 14 

K., unsurveyed, 100 feet downstream from bridge on Globe-Young highway, a quarter of a 

mile downstream from Final Creek, 1 mile upstream from diversion dam for power canal, 

14 miles east of village of Roosevelt, and 17 miles upstream from Roosevelt Dam. Datum 

of gage is 2,177.14 feet above mean sea level, datum of 1929.

Drainage area.- 4,310 scjuare miles.

Records available.- January 1913 to September 1949.

Average discharge.- 36 years, 935 second-feet.

Extremes^.- Maximum discharge during year, 15,500 second-feet Jan. 14 (gage height, 16.45 

reet); minimum, 103 second-feet Oct. 17, 18.

1913--19: Maximum discharge, 117,OOtf second-feet Mar. 14, 1941 (gage height, 24.4 

feet), from rating curve extended above 55,000 second-feet on basis of velocity-area 

studies and float-area measurements at 66,000 and 102,000 second-feet; minimum, 71 second-feet July 9, 1946.

Minimum discharge known, about 42 second-feet Aug. 5, 1911.

Remarks.- Records excellent. Several small diversions above station for irrigation and 

one transmountain diversion from Black River to Eagle Creek Basin. Records show inflow 

to Roosevelt Reservoir See page 409 for records for Tonto.Creek, which also contributes 

to Roosevelt Reservoir.

Revisions (water years).- W 1049: 1914, 1916, 1918, 1919, 1926.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

e

9

10

11

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 31 '

Oct.

122

125 

125 

125 

125.

122 

119 

116 

116 

113

113 

113 

109 

109 

116

116 

109 

116 

119 

119

135 

149 

160 

146 

149

146 

138 

142 

156 

189 

232

Nov.

293 

260 

220 

216 

208

197 

185 

170 

170 

166

163 

152 

163 

163 

156

160 

163 

163 

160 

160

156 

149 

152 

152 

146

146 

149 

152 

152 

146

Dec.

135 

142 

146 

142 

149

156 

152 

142 

142 

146

156 

152 

160 

156 

163

170 

181 

189 

181 

174

170 

178 

477 

1,070 

1,060

753 

1,050 

1,940 

1,910 

1,170 

804

Jan.

618 

538 

506 

450 

331

248 

228 

252 

374 

3,740

2,680 

1,910 

5,860 

11,800 

4,740

2,710 

1,860 

1,290 

1,040 

961

947 862' 

989 

i 2,770 

2,690

2,260 

1,570 

1,160 

888 697' 

571

Feb.

538

538 

527 

516 

516

475 

450 

460 

450 

450

436 

446 

501 

543 

554

571 

549 

621 

862 

1,150

1,470 

1,670 

1,880 

2,480 

8, =580

2,350 

2,060 

1,980

Month

Octo 

Hove 

Dece

<*

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (t.3e, 4,000 sec. -ft.).- Ji

Mar.

2,130 

1,810 

1,630 

1,650 

1,910

2,250 

2,420 

4,180 

4,180 

3,030

2,580 

2,520 

2,530 

2,430 

2,400

2,570 

2,740 

2,910 

2,950 

3,080

3,220 

2,800 

2,490 

2,240 

1,990

1,850 

1,700 

1,510 

1,640 

1,810 

1,710

Apr.

1,730 

1,590 

1,430 

1,450 

1,400

1,400 

1,530 

1,690 

2,010 

2,280

2,270 

2,330 

2,640 

3,080 

3,640

3,950 

3,990 

3,670 

3,520 

3,340

3,310 

3,260 

3,520 

3,720 

3,710

3,510 

V3,6JO

3,160 

2,980 

2,890

Secondfoot-days

4,089 

5,196 

13,716

218,981

I" 57,540 

27,623 

74,860 

82,610 

38,337 

14,015 

16,558 

18,685 

7,134

360,363

May

2,790 

2,450 

2,180 

2,070 

1,920

1,760 

1,620 

1,470 

1,350 

1,280

1,250 

1,220 

'1,200 

1,150 

1,110

1,110 

1,100 

1,030 

945 

877

818 

751 

743 

735 

735

751 

801 

826 

801 

776 

718

Maximum

232 

293 

1,940

5,130

11,800 

2,580 

4,180 

3,990 

2,790 

678 

1,660 

2,550 

462

11,800

June

678 

637 

614 

575 

560

546 

518 

497 

490 

471

490 

484 

568 

553 

539

497 

471 

458 

477 

477

465 

427 

393

366 

356

330 

306 

273 

256 

243

Minimum

July

226 

243 

247 

260 

282

282 

296 

247 

226 

234

422 

553 

521 

421

433

448 

452 

421 

371 

876

1,070 

686 

1,100 

1,660 

971

835 

710 

598 

497 

471 

499

109 

146 

135

81

228 

436 

1,510 

1,400 

718 

243 

226 

175 

153

109

Aug.

377 

497 

452 

440 

446

701 

706 

974 

2,550 

2,150

1,580 

1,130 

851 

702 

575

504 

440 

393 

356 

320

296 

273 

264 

260 

247

234 

214 

202 

190 

186 

175

Mean

132 

173 

442

598

1,856 

987 

2,415 

2,754 

1,237 

467 

534 

603 

238

987

n. 10 (1 p.m.) 6,340 sec. -ft.; Jan. 14 (7:30

Sept.

168 

164 

153 

186 

220

194 

194 

206 

222 

226

339 

351 

356 

462 

335

301 

273 

252 

239 

230

210 

218 

252 

206 

256

198 

186 

183 

179 

175

Runoff In 

acre-feet

8,110 

10,310 

27,210

434,300

114,100 

54,790 

148,500 

163,900 

76,040 

27,800 

32,840 

37,060 

14,150

714,800

a.m.)
406 GILA RIVER BASIN

Reservoir system on Salt' River at and below Roosevelt Dam, Ariz.

Location.- This system comprises four storage reservoirs created by four separate dams on

 Salt Hiver; Roosevelt Lake, formed by Roosevelt Dam, in sec. 20, T. 4 N., R. 12 E., unsurveyed; Apache Lake, formed by Horse Mesa Dam, 17 miles downstream from Roosevelt 

Dam; Canyon Lake, formed by Mormon Flat Dam, 26 miles downstream from Roosevelt Dam; 

Sahuaro Lake, formed by Stewar-t Mountain Dam, 36 miles downstream from Roosevelt Dam.

Drainage area.- 6,220 square miles at Stewart Mountain Dam-.

Records available.- July 1910 to September 1949 (prior to October 1934, contents at end of

 eacn montn only, published- in Water-Supply Paper 1049).

Extremes.- Maximum contents of system during year, 766,300 acre-feet June 7, 8; minimum

 contents, 131,500 acre-feet Dec. 22.

1910-49: Maximum contents, 1,764,000 acre-feet May 22, 1941; minimum, 20,680 acrefeet Sept. 16, 1940.

Remarks.- Total capacity of the four reservoirs is 1,755,000 acre-feet, divided as follows:

 Roosevelt Lake, 1,382,000 acre-feet; Apache Lake, 245,000 acre-feet; Canyon Lake, 58.00C 

acre-feet; Sahuaro Lake, 70,000 acre-feet. Dams forming these reservoirs were built as 

follows: Roosevelt 1905-11; Horse Mesa 1924-27; Mormon Plat 1923-25; Stewart Mountain 

1928-30. Records given herein represent asable contents. Dead storage negligible. 

Water from this system is used for Irrigation of Salt River Valley and for generation 

of power. The four dams forming these reservoirs completely develop fall in Salt River 

from Roosevelt Lake to Stewart Mountain Dam. Since 1910, spill over Roosevelt Dam be-

-e of capacity storage has occurred only uuring the following periods: Apr. 15 to 

June 21, 1915, Jan. 19 to May 30, 1916, Apr. 21 to June 7, 1917, Feb. 17 to June 3, 

1920, and Apr. 13 to June 24, 1941.

Cooperation.- Records of daily contents furnished by Salt River Valley Water Users' 

Association.

Contents at 12 p.m., In thousands of acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

192.1

190.7

190.1

188.3

186.4

184.8

183.1

182.2

181.1

180.3

179.5

178.2

176.9

175.8

174.9

174.2

173.2

172.7

171.8

170.8

170.2

169.7

169.0

168.1

167.5

166.7

165.6

165.0

164.3

163.8

163.5

Nov.

163.6

163.3

162.4

161.5

160.5

160.1

159.9

159.5

158.8

158.2

157.2

156.7

156.3

155.7

155.4

154.2

153.1

152.1

151.5

151.1

150.4

149.7

149.0

148.3

147.9

147.3

146.4

146.0

145.3

144.1

-

Dec.

143.0

142.2

142.1

141.1

140.6

140.4

140.1

139.5

138.6

137.8

137.7

136.9

137.4

137.0

136.0

135.1

134.4

133.8

133.6

133.1

132.2

131.5

132.9

132.9

137.6

139.3

142.6

146.8

149.7

151.5

153.1

Jan.

154.2

155.2

156.1

157.1

157.6

158.5

159.4

160.0

160.7

168.4

174.6

179.5

197.4

226.6

236.4

243.3

249.7

252.3

254.2

256.6

259.5

262.0

265.5

272.8

282.9

290.7

296.3

300.7

304.0

306.3

308.4

Feb.

310.2

311.8

313.5

315.0

316.5

317.8

319.4

320.9

322.3

323.7

325.2

326.7

328.4

330.3

332.4

334.3

335.5

337.9

340.8

344.4

349.0

354.3

360.0

366.8

373.7

329.7

384.4

39d.2

_

-

-

Mar.

395.5

399.8

404.0

408.1

412.5

417.5

423.2

431.8

440.4

446.5

452.0

456.8

461.8

467.1

472.0

477.2

482.6

488.4

494.2

499.8

506.1

511.2

515.5

'519.7

523.8

527.7

530.8

533.6

536.8

540.4

544.2

Apr.

548.0

551.5

554.5

557.1

560.0

563.4

566.5

570.0

574.2

578.6

583.1

587.7

592.8

598.7

605.9

613.4

620.9

628.0

634.9

641.4

647.7

653.2

659.7

666.6

673.2

679.9

686.4

691.8

697.0

702.0

-

Hay

707.1

711.3

715.4

718.9

722.2

725.2

728.0

730.5

732.7

734.7

737.0

739.2

740.8

742.4

744.2

745.9

747.6

749.2

750.3

751.3

752.4

753.4

754.5

755.4

756.1

756.9

758.3

759.2

759.8

760.8

761.8

June

762.8

763.8

763.9

764.6

765.4

765.9

766.3

766.3

766.1

765.6

764.7

763.7

762.3

761.0

759.6

757.8

756.6

756.6

755.4

753.9

752.2

750.5

748.2

746.5

744.4

742.3

740.2

738.2

735.9

733.3

-

July

730.9

728.9

727.4

725.8

723.9

721.9

719.8

717.5

715.6

715.1

714.1

712.8

711.0

709.6

707.8

705.9

703.9

702.3

700.5

698.8

698.0

697.9

696.8

697.2

697.8

697.6

696.4

695.2

694.1

691.3

689.3

Aug.

687.7

685.9

684.5

682.8

681.2

680.3

680.5

681.5

684.1

687.4

688.2

688.1

687.0

686.7

685.7

684.2

682.4

680.4

678.2

676.4

675.2

674.0

672.3

670.9

669.5

668.0

666.5

665.0

663.5

661.2

658.9

Sept.

656.6

653.8

651.4

649.1

647.0

644.2

641.6

639.2

636.8

635.0

634.3

633.7

635.2

636.3

636.9

637.2

637.1

637.4

637.2

636.3

634.8

633.2

631.5

629.7

628.4

627.0

625.7

624.5

623.6

622.4
GILA RIVER BASIN 

Salt River below Stewart Mountain Dam, Ariz.

407

Location.- Water-stage recorder, lat. 33°33 T , long. 111°32', in SEi sec. 33, T. 3 N., R. 

BE., unsurveyed, in Tonto National Forest, threej-quarters of a mile downstream from 

Stewart Myrtata Danand 9 miles upstream from Verde River. Datum of gage is 1,396.33 feet 

above mean sea level, datum of 1929.

Drainage area.- 6,220 square miles.

Records available.- OctobeV 1934 to September 1949.

Average discharge.- 15 years, 922 second-feet.

Extremes - Maximum discharge during year, 1,630 second-feet Sept. 8;i maximum gage height, 

y.ya reet Oct. 5; minimum daily discharge, 8 second-feet Mar. 8-10, Aprs 5-6.

1934-49: Maximum discharge, 11,700 second-feet May 7, 1941 (gage height, 15.97 

feet); minimum, 3 second-feet Jan. 8-20j 1935, and for several days in January and 

February 1943.

Remarks - Records excellent except those for Oct. 1 to Dec. 23, which are good, and those 

for Dec. 24 to June 6, which are fair. Flow regulated by Stewart Mountain Dam and three 

other dams (combined capacity, 1,755,000 acre-feet, see preceding page). Water is 

available for diversion at Granite Reef Dam, 13 miles downstream, for irrigation in 

Salt River Valley.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

716 

702 

702 

74"4 

1,020

918 

730 

709 

702 

532

572 

709 

730 

730 

751

486 

506 

539 

554 

480

545 

-586 

606 

552 

552

552 

579 

579 

519 

500 

417

Nov.

271 

296 

50* 

626 

640

613 

405 

381 

405 

424

455 

467 

486 

500 

532

579 

579 

579 

566 

480

387 

405 

436 

448 

318

417 

532 

519 

579 

674

Dec.

674 

606 

500 

480 

358

324 

405 

486 

448 

493

393 

260 

271 

436 

552

579 

566 

500 

364 

467

660 

633 

368 

15 

12

12 

11

10 

10 

10 

10

Jan.

10 

11 

11 

11 

11

10 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

12 

12 

12 

12

12 

10 

9 

9 

9 

9

Feb.

9 

9 

9 

9 

9

9 

9 

9 

9 

9

10 

10 

10 

10 

10

10 

96 

12 

11 

11

11 

11 

11 

11 

10

10 

10 

10

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Va

lendar year 1943

uary. ( . . . . . . . . . .

ter year 1948-49 -..;....................

Mar.

9 

9 

9 

9 

9

9 

9 

8 

8 

8

9 

9 

10 

10 

10

10 

10 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

9

9 

9 

9

Apr.

9 

8 

8 

9 

8

8 

9 

9 

9 

9

9 

9 

9 

10 

10

10 

10 

10 

10 

10

10 

10 

,10 

10 

10

10 

101111' 

11

Sec endfoot -days

19,519 

14,499 

10,913

254,213

335 

364 

301 

286 

315 

24,907 

37,274 

33,262 

26,511

166,486

May

10 

10 

10 

10 

9

9 

9 

9 

10 

10

10 

10 

10 

11 

11

10 

10 

10 

10 

10

10 

10 

10 

1011

11 

11 11 

11 11 11

Maximum

1,020 

674 

674

1,560

12 

96 

11 

11 

IX 

1,270 

1,400 

1,390 

1,590

1,590

June

11 

11 11 11 

11

34 

282 

276 

308 

650

862 

910 

1,170 

1,160 

1,170

1,220 

1,210 

1,070 

934 

966

1,270 

1,270 

1,270 

1,260 

1,260

1,260 

1,260 

1,260 

1,260 

1,260

July

1,280 

1,280 

1,040 

950 

1,150

1,230 

1,220 

1,200 

1,210 

1,200

1,190 

1,230 

1,230 

1,530 

1,220

1,230 

1,230 

1,240 

1,230 

1,230

1,230 

1,230 

1,400 

990 

854

1,070 

1,240 

1,290 

1,300 

1,330 

1,320

Minimum

417 

271 

10

7

9 

9 

8 

8 

9 

11 

654 

516 

23

6

Aug.

1,310 

1,320 

1,320 

1,310 

1,310

1,170 

516 

688 

770 

910

1,110 

1,090 

1,070 

800 

1,010

1,290 

1,390 

1,380 

1,370 

1,220

942 

974 

990 

910 

934

862 

886 

886 

974 

1,240 

1,310

Mean

630 

483 

352

695

10.8 

13.0 

9.7 

9.5 

10.2 

830 

1,202 

1,073 

884

462

Sept.

1,320 

1,320 

1,320 

1,250 

1,340

1,460 

1,590 

1,560 

1,300 

1,030

452 

622 

680 

225 

23

77 

175 

108 

279 

788

902 

1,010 

1,130 

1,110 

894

956 

1,050 

971 

788 

781

Runoff In 

acre-feet

38,720

28T760 

21,650

504,200

664 

722 

597 

567 

625 

49,400 

73,9?O 

65,970 

52,580

334,200

93BM1 0-51-27
408 GILA RIVER BASIN 

White River near McNary, Ariz.

Location.- Water-stage recorder, lat. 34°02'45", long. 109°44'15", in E^ sec. 31, T. 8 N., 

H. 2b K.. unsurveyed, on Fort Apache Indian Reservation, 2 miles downstream from Paradise 

Creek, 6f miles southeast of McNary. Altitude of'gage, 7,750 feet (from Indian Irri- . 

gat ion Service river-profile map).

Drainage area.- 74 square miles.

Records available.- June 1945 to June 1949 (discontinued).

Extremes.- Maximum discharge during period, October 1948 to June 1949, 656 second-feet Apr. 

lb (gage height, 3.70 feet); minimum, 4 secor.d-feet Nov. 19, caused by ice jam upstream. 

(Maximum discharge for period is also maximum for water year.)

1945-49: Maximum discharge, 1,290 second-feet Sept. 19, 1946 (gage height, 5.36 

feet), from rating curve extended above 350 second-feet by logarithmic plotting; minimum, 

that of Nov. 19, 1948.

Remarks. - Records good except those for periods of i?e effect or no gage-height record, 

which are poor. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

13 

14 

12 

11 

12

11 

11 

10 

10 

10

11

12 

11 

11 

11

10 

1011

17 

18

15 

14 

13 

12 

12

12 

13 

19 

15 

17 

21

Nov.

19 

20 

18 

18 

14

15 

15 

14 

13

12

11 

(*)

Dec.

10

PI

15

44

125 

39

> 25

Jan.

> 15

Feb.

15 

30

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

May.

June 

July 

Augu 

Sept

Th

lendar year

e period .......................

Mar.

50

*55 

48

52 

54 

54

59 

70

79 

88 

92 

108 

106

94 

98 

79 

66 

60

50 

51 

57 

57 

54 

48

Apr.

46 

48 

39 

38 

41

51

62 

95 

108 

114

143 

190 

263 

352 

411

376 

306 

262 

242 

233

250 

256 

250 

222 

225

239 

217 

211 

225 

220

Secondfoot-clays

399 

340 

648

-

465

615 

1,979 

5,735 

5,306 

3,694

-

May

206 

206 

206 

201 

198

184 

167 

163 

167 

176

181 

179 

176 

181 

184

170 

156 

145 

137 

133

133 

137 

143 

154 

167

181 

184 

176 

174 

174 

167

Maximum

21 

20 

125

-

108 

411 

206 

176

-

June

163 

160 

158 

154

150

141 

133 

126

124

122

133 

176 

167 

160 

156

152 

150 

160 

152 

128

113

100 

89 

86 

75

65 

59 

53 

47 

42

Minimum

July

10

-

38 

133 

42

-

Aug.

Mean

12.9 

11.3 

20.9

-

15.0 

22 r O 

63.8 

191 

171 

123

-

Sept.

Runoff In 

acre-feet

791 

674 

1,290

-

922 

1,220 

3,930 

11,380 

10,520 

7,330

38,060

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 6, Nov. 9 to Dec. 21, Dec. 25 to about Mar. 

(ho gage-height record Dec. 5-13, Feb. 12 to Mar. 8; discharge computed on basis of 3 discharge 

measurements, weather records, and records for Show Low Creek near Show Low).
GILA RIVER BASIN 

Tonto Creek above Gun Creek, near Roosevelt, Ariz.

409

Location.- Water-stage recorder, lat. 33°59', long. 110°18', in NE^SW^ sec. 2, T. 7 N., 

K. iu K., in Tonto National Forest, 600 feet upstream from Gun Creek, 23^ miles 

northwest of village of Roosevelt, and 26 miles upstream from Roosevelt Dam. Datum 

of gage is 2,523.14 feet above mean sea level, datum of 1929.

Drainage area.- 678 square miles.

Records available.- December 1940 to September 1949. January 1913 to December 1940 at 

site iu miles downstream, published as Tonto Creek near Roosevelt.

Extremes.- Maximum discharge during year, 9,830 second-feet Jan. 13 (gage height, 9.60 

reet); minimum, 1.6 second-feet Sept. 5.

1940-49: Maximum discharge, 32,000 second-feet Mar. 14,1941 (gage height, 15.1 

feet)-, by slope-area method; no flow for short periods in several years.

Remarks.- Records excellent. Small diversions above station for irrigation. 

Revisiqns (water years).- W 879: 1937, 1938. W 1049: 1916, 1917, 1922, 1926, 1935.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

2,9 

30 

31

Oct.

2.3 

2.1 

2.1 

2.'1 

2.1

2.3 

2.3 

2.3 

2.3 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.9 

3.6 

3.6

3.3> 

3.3 

3.8 

3.8 

3.8

4.0 

4.5 

5.3 

8.3 

20 

39

Nov.

30 

17 

15 

12 

12

12 

11 

11 

11 

12

12 

11 

11 

11 

11

11 

11 

11 

11 

11

12 

11 

12 

12 

12

11 

9.2 

8.8 

8.8 

8.3

Dec.

8.8 

10 

11 

11 

11

11 

12 

12 

12 

12

14 

12 

14 

14 

15

16 

15 

16 

16 

17

16 

24 

1,150 

728 

211

147 

394 

831 

288 

169 

118

Jan.

104 

96 

94 

71 

58

60 

59 

55 

59 

720

795

808 

5,530 

2,200 

913

670 

502 

400 

316 

282

267 

303 

575 

1,190 

1,600

1,390 

920 

596 

420 

324 

307

Feb.

255

248 

237 

210 

190

175 

163 

190 

194 

200

240 

282 

333 

342 

329

324 

395 

616 

824 

844

873 

807 

1,000 

1,050 

899

. 689 

579 

698

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc

Aprl

Mjtv

June 

July 

Augu

Sept 

Ha

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 1,500 sec. -ft.).- De

Mar.

632 

524 

455

475 

502

475 

535 

620 

415 

338

329 

316 

290 

282 

294

316 

320 

294 

278 

290

251 

213 

200 

172 

148

143 

129 

118 

129 

'132 143 

Apr.

146

137 

148 

163 

157

160 

175 

184 

203 

194

187 

184 

190 

194 

187

178 

157 

148 

143 

129

121 

114 

108 

104 

99

93 

82 

77 

70 

66

Secondfoot -days

148.3 

359.1 

4,335.8

15,033.1

21,684 

13,186} 9,758' 

4,298 

1,167 

403.7 

734.4 

873.9 

510.1

i 57,458.3

May

63 

60 

59 

55 

52

49 

48 

45 

41 

39

38 

36 

36 

35 

33

35 

38 

38 

37 

34

34 

33 

33 

32 

29

26 

23 

22 

22 

22 

20

Maximum

39

30 

1,150

1,150

5,530 

1,050 

632 

203 

63 

18 

87 

211 

134

5,530

c. 23 (10 p.m.) 2,540 se

June

18 

17 

17 

17 

15

15 

15 

15 

16 

17

17 

16 

15 

15 

14

11 

10 

17 

18 

17

13 

11 

10 

10 

10

9.4 

8.4 

6.8 

6.8 

6.3

July

5.5 

6.3 

9.4 

17 

17

17 

ZZ 

19 

12 

11

23 

28 

31 

26 

17

12 

9.4 

8.9 

7.9 

49

37 

43 

87 

60 

41

29 

22 

19 

18 

16 

14

Minimum

2.1 

8.3 

8.8

0

55 

163 

118 

66 

20 

6.3 

5.5 

2.9 

1.9

1.9

Aug.

18 

15 

15 

49 

28

66 

81 

119 

211 

57

32 

24 

21 

17 

15

12 

11 

9.4 

8.! 

7.4

6.8 

6.8 

7.4 

6.3 

6.3

5.2 

4.5 

4.2 

3.8 

3.2 

2.9

Mean

4.78

12.0 

140

41.1

699 

471 

315 

143 

37.6 

13.5 

23.7 

28.2 

17.0

157

Sept.

2.4

2.1 

2.1 

1.9 

1.9

2.3 

2.4 

2.6 

3.6 

4.8

5.8 

7.4 

134 

113 

31

2^ 

.17 

IS 

10 

12

10 

10 

9.4 

8.4 

10

10 

10 

10 

23 

18

Runoff In 

acre-feet

294 

712 

8,600

29,820

43,010 

26,150 

19,350 

8,520 

2,310 

801 

1,460 

1,730 

1,010

113,900

c.-ft.; Dec. 28 (12:3O a.m.)

1,77
410 GILA RIVER BASIN 

Verde River below Tangle Creek, above Horseshoe Dam, Ariz.

Location.- Water-stage recorder, lat. 34°04'25", long. 111°42'50", in sec. 35, T. 9 N., R. 

b K., unsurveyed, in Tonto National Forest, If miles downstream from Tangle Creek and 

9 miles upstream from Horseshoe Dam. Datum of gage is 2,029.0 feet above mean sea 

level, datum of 1929.

Drainage area.- 5,860 square miles (includes 344 square miles in Aubrey Valley Playa, a 

closed basin).

Records available.- August 1945 to September 1949.

Extremes.- Maximum discharge during year, 11,000 second-feet Jan. 13 (gage height, 11.24 

feet); minimum,83 second-feet Sept. 2 {gage height, 1.55 feet), caused by power regulation on Fossil Creek.

1945-49: Maximum discharge, 11,500 second-feet Sept. 19, 1947 (gage height, 11.47 

feet); minimum, 56 second-feet July 16, 17, 1948 (gage height, 1.30 feet), caused by 

power regulation on Fossil Creek.

Greatest flood since 1924 occurred Mar. 3, 1938, discharge, 100,000 second-feet, 

(gage height, 19.0 feet, from floodmarks), computed from comparison of peak discharge 

at other stations on Verde River.

Remarks.- Records excellent except those for periods of fragmentary gage-height record, 

whicti are good. Small diversions above station. Low flow slightly regulated by power 

plant 32 miles above station using water from Fossil Creek. This station is above.all 

major reservoirs on Verde River.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

IB 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

150 

146 

143 

152 

152

159 

153 

148 

139 

144

146 

148 

150 

152 

152

161 

169 

161 

165 

176

184 

184 

184 

180 

174

182 

189 

195 

2*4 

230 

239

Nov.

269 

264 

241 

233 

230

230 

226 

217 

224 

226

224 

226 

228 

230 

239

230 

217 

215 

213 

213

215 

228 

235 

230 

230

23O 

235 

237 

237 

239

Dec.

244 

241 

239 

237 

250

230 

237 

241 

241 

237

239 

2*7 

237 

235 

235

235 

235 

237 

239 

241

241 

250 

639 

905 

485

388 

511 

1,150 

622 

457 

391

Jan.

388 

460 

493 

420 

355

327 

313 

308 

303 

349

464 

643 

5,820 

4,180 

1,77O

1,180 

9OO 

755 

655 

581

548 

532 

6O6 

1,050 

1,700

1,360 

977 

770 

660 

564 

f528

Feb.

f505 

f472 

f444 

f434 

f434

f423 

f417 

f434 

f440 

f4l7

f458 

f498 

f540 

f536 

f486

f461 

479 

704 

1,140 

1,480

1,820 

2,000 

2,7OO 

3,370 

3,350

3,100 

2,730 

2,860

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

wa

lendar year 194S

ter year 1948-49 .......................

Mar.

2,540 

1,770 

1,810 

2,31O 

2,63O

3.04O 

3,270 

4,140 

3.O10 

2,290

2,530 

3,200 

3.30O 

3,190 

3,300

3,730 

4,080 

4,130 

3.87O 

3,990

3,950 

2,640 

2,790 

2,040 

1,440

1,190 

1,03O 

906 

1,590 

2,130 

1,460

Apr.

1,510 

1,170 

1.O8O 

1,280 

1,74O

2,120 

2,710 

2,750 

3,750 

3,520

3.O7O 

2,830 

2,790 

2,710 

2,46O

2.O60 

1.74O 

1,5OO 

1,290 

1,20O

1,O2O 

867 

770 

693 

610

517 

451 

394 

345 

318

Secondfoot-days

5,216 

6,911 

10,806

119,344

29,959 

33,332 

83,296 

49,268 

6,056 

5,192 

5,726 

6,499 

8,499

250,760

Peak discharge (base, 4.OOO sec. -ft.}.- Jan. 13 (4:30

4,140 sec. -ft.; Mar. 8 (12:30 p. m .) 4, §00 sec. -ft.; Mar. 

4-.480 sec. -ft.; Sept. 10 (7:30 p.m.) 4,040 sec. -ft. 

f Fragmentary gage-height record; discharge computed f

May

292 

272 

249 

231 

218

205 

213 

210 

213 

198

193 

198 

191- 

183 

176

187 

201 

193 

198 

189

180 

185 

187 

178 

176

160 

160 

159 

153 

153 

155

Maximum

239 

269 

1,150

2,050

5,820 

3,550 

4,140 

3,750 

292 

324 

327 

666 

988

5,820

June

147 

f!31 

f!28 

125 

f!35

f!35 

f!42 

f!55 

f!60 

170

159 

164 

176 

180 

f!62

164 

f!49 

212 

198 

324

255 

228 

213 

208 

189

176 

fl59 

f!57 

f!51 

f!40

July

133 

125 

128 

119 

200

263 

223 

208 

f!83 

f!68

f!83 

170 

180 

191 

168

153 

153 

142 

157 

155

244

278 

327 

258 

228

223 

1S9 166' 

146 

138 

127

Aug.

114 

170 

189 

356 

359

274

666 

658 

440 

312

263 

231 

201 

185 

166

153 

147 

137 

125 

117

112 

116 

114 

111 

110

117 

111 

110 

fl!2 

112 

fill

I 

Minimum Mean

139 168 

213 230 

230 349

68 328

303 966 

417 1,190 

906 2,687 

318 1,642 

153 195 

125 173 

119 185 

110 210 

106 283

106 687

Sept.

flOS 

106 

111 

119 

127

125 

119 

122 

122 

988

964 

602 

417 

694 

483

342

289 

263 

247 

231

213 

189 

178 

170 

168

160 

168 

174 

231 

269

Runoff in 

acre-feet

10,350 

13,710 

21,430

236,700

59,420 

66,110 

165,200 

97,720 

12,010 

10,300 

11,360 

12,890 

16,860

497,400

p.m.} 11,000 sec. -ft.j Feb. 25 (2 p.m.) 

20 (11 p.m.) 5,260 seo.-ft.; Apr. 9 (11 p.m.)

rom partly estimated gage heights.
GILA RIVER BASIN 411

Reservoir system on Verde River at and below Horseshoe Dam, Ariz.

Location.- This system comprises two storage reservoirs created by Horseshoe and Bartlett 

iiams on Verde River. Horseshoe Reservoir, formed by Horseshoe Dam, lat. 33°59'15", 

long. 111°42 I 45", in sec. 2, T. 7 N., R. 6 E., unsurveyed; and Bartlett Reservoir, 

formed by Bartlett Dam, lat. 33°49', long. 111°38', in sec. 34, T. 6 N., R. 7 E., unsurveyed. Datum of gage on Horseshoe Reservoir is 1,900.00 feet and pn Bartlett Reservoir, 1,609. 46 feet above mean sea level, datum of 1929.

Drainage area.- 6,160 square miles at Bartlett Dam.

Records available.- July 1939 to September 1949. Prior to 1946 published as Bartlett 

Reservoir at Bartlett Dam.

Extremes.- Maximum contents during year', 206,200 acre-feet Apr. 17, 18; minimum, 1,910 acrereet Oct. 16.

1939-49: Maximum contents, that of Apr. 17, 18, 1949; no storage at times when 

natural flow of river was passed through reservoir system.

Remarks.- Horseshoe Reservoir Is formed by earth and rock-fill dam; dam completed and 

 storage'began Nov. 15, 1945. Bartlett Reservoir is formed by concrete multiple-arch dam; 

dam completed May 1939 and storage began Feb. 5, 1939. Total capacity of the two reservoirs is 247,400 acre-feet divided as follows: Horseshoe Reservoir, 67,900 acre-feet 

between elevations 1,915.0 feet (sill of outlet gates) and 1,933.0 feet (crest of spillway); Bartlett Reservoir, 179,500 acre-feet between elevations 1,619.46 feet (10 feet 

above sill of outlet gates) and 1,797.46 feet (top of spillway gates). No dead storage. 

Records given herein represent usable contents. Water is used for irrigation of Salt 

River Valley and for municipal supply.

Contents at 12 p.m., In acre-feet, water year October 1948 to September 1949

D«J

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IB

16

17

18

19

20

21

22

23

24

25

26

27

£20

30. 

31

Oct.

6,950

6,700

6,510

6,090

5,690

5,520

4,960

4,590

4,220

3,860

3,500

3,140

2,790

2,450

-2,120

1,910

2,040

2,200

2,480

2,730

2,850

2,980

3,030

3,250

3,320

3,420

2,900

2,850

2,940 

3,290 

3,«70

Nor.

4,080

4,500

4,870

5,070

5,130

5,360

5,600

5,880

5,320

4,950

4,770

4,890

5,140

5,400

5,650

5,900

6,130

6,340

6,520

6,740

7,030

7,330

7,640

7,930

8,220

8,530

8,810

9,120

9,440 

9,740

Dec.

10,050

10,340

10,650

10,960

11,290

11,580

11,900

12,210

12,540

12,860

13,200

13,560

13,910

14,270

14,640

14,990

15,380

15,760

16,140

16,^10

16,810

17,190

18,940

20,640

21,170

21,300

21,780

23,530

23,060 

22,260 

27,900

Jan.

23,640

24,620

25,400

25,820

25,970

26,250

26,470

26,830

27,350

28,080

29,140

30,690

43,5M>

51,010

54,390

56,670

58,380

59,740

61,070

62,240,

63,410

64,49O

"65,760

68,510

73,320

76,760

79,140

80,990

82,460 

83,470 

84,360

Feb.

85,150

86,030

86,690

87,470

87,930

88,280

88,640

89,140

89,890

90,680

91,430

92,230

93,030

94,080

94,650

94,680

95,08O

95,520

96,540

97,910

99,260

100,300

102,000

105,300

109,600

112,900

115,800

118,900

I

Mar.

121,200

121,900

122,500

124,20*

127,100

130,90*

135,000

140,600

143,400

144,700

146,400

149,500

153,100

156,100

158,600

161,900

166,000

170,700

175,300

180,200

185,200

187,000

187,700

187,400

185,800

184,400

182,900

181,000

180,200 

180,400 

180,100

Apr.

18O.60O

181,500

182,200

181,000

184,200

185,800

188,200

190,600

194,900

198,700

2Ol,OOO

201,800

202,200

203,6OO

204,100

205,400

206,200

2O6,2OO

2O5,2OO

203,800

202,000

200,100

198,400

197,000

195,000

192,600

190,000

187,600

184,600 

181,900

Hay

179,700

177,300

174,500

171,400

168,200

165,500

163,200

161,400

159,500

156,900

154,400

151,800

149,500

147,500

145,800

144,300

142,700

140,800

139,200

137,100

135,700

134,500

133,100

131,400

129,100

126,600

124,200

122,000

120,300 

118,600 

116,600

June

114,500

112,500

110,400

108,900

107,60*

106,100

104,400

102,600

100,500

99,330

98,620

98,120

97,740

97,700

97,000

95,890

94,880

94,830

94,590

94,280

94,770

95,040

94,890

94,580

93,540

92,620

93,150-

92,220

91,150 

9O,140

July

89,330

88,750

83,260

87,870

86,810

85,900

84,910

83,720

82,530

81,410

8O,6SO

79,810

78,240

76,590

75,730

74,980

74,280

73,340

72,110

70,680

69,380

68,630

69,430

70.O2O

69,820

69,790

69,45O

69,170

68,840 

68,460 

68.210

Aug.

67,740

66,730

65,770

64,900

64,210

63,980

64,890

65,980

66,300

66,630

67,100

67,510

67,520

66,800

65,910

64,740

63,450

62,140

60,860

59,620

53,310

57,050

55,690

54,280

53,040

51,780

50,560

49,330

48,120 

46,830 

45.080

Sept.

43,040

41,030

39,040

37,130

35,300

33,440

31,660

29,890

28,23O

28,070

28,210

27,410

26,640

26,170

25,070

23,920

22,800

21,640

20,450

19,380

18,220

17,120

15,980

14,890

13,810

12,790

11,810

11,050

10,100 

9,370
412

GILA RIVER BASIN 

Verde River below Bartlect Dam, Ariz.

Location.- Water-stage recorder, lat. 33°48'30", long. 111 C 40'00", In NE^ sec. 6, T. 5

 N., H. 7 E., 2i miles downstream from Bartlett Dam and 3^ miles upstream from Camp 

Creek. Datum of gage is 1,572.34 feet above mean sea level, datum of 1929.

Drainage area.- 6,160 square miles.

Records available.- August 1888 to September 1949. Prior to 1941 at sities 3 to 20 miles 

downstream (see" Water-Supply Paper 1049).

Average discharge.- 61 years (1888-1949), 721 secondrfeet (adjusted for storage in 

Bartlett ana Horseshose Reservoirs).

Extremes.- Maximum discharge during year, 2,910 second-feet Mar. 24 (gage height, 5.98 

reet); minimum, 2.4 second-feet Jan. 27.

1888-1939: Maximum discharge (flow not determined but probably over 150,000 

second-feot) occurred Feb. 24, 1891; minimum daily, 29 second-feet July 11, 13, 1901. 

Floods of Nov. 27, 1905, and Mar. 4, 1938, reached maximum discharges of 96,000 and 

95,000 second-feet, respectively.

1939-49: Maximum discharge, 45,800 second-feet Mar. 15, 1941 (gage height, 17.5 

feet, present site and datum, from floodmarks); no flow at Bartlett Dam at times in 

several years when gates in dam were closed.

Remarks.- Records excellent. Small diversions above station for irrigation. Flow

 completely regulated by Bartlett Dam since Feb. 5, 1939, and also by Horseshoe Dam 

since Nov. 15, 1945 (see preceding page), except during periods of spill.

Discharge, in second-feet, water year October 1948 -to September 1949

Day

1 

2 

3 

4 

5

6

r

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

349 

272 

230 

355 

352

346 

340 

334 

331 

328

325 

322 

322 

319 

325

274 

105 

88 

19 

33

102 

102 

107 

107 

145

263 

260 

249 

183 

47 

47

Nov.

48 

50 

52 

119 

210

109 

96 

164 

396 

413

328 

181 

96 

96 

100

100 

100 

102 

105 

94

54 

54 

56 

56 

58

58 

58 

56 

56 

56

Dec.

58 

56 

58 

59 

61

63 

64 

64 

66 

66

61 

53 

54 

53 

54

44 

27 

42 

40 

38

79 

164 

31 

143 

180

272 

416 

556 

870 

834 

25

Jan.

4 

14 

80 

198 

241

222 

216 

148 

86 

77

71 

96 

110 

4 

53

96 

81 

109 

90 

79

73 

73 

71 

61 

29

3 

3 

4 

22 

168 

170

Feb.

138 

82 

115 

141 

138

138 

182 

222 

127 

124

155 

216 

216 

262 

467

588 

408 

602 

656 

705

922 

1,200 

1,280 

1,360 

1,230

1,190 

1,140 

1,240

Month

Octo 

Hove 

Dece

Ca

janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

nber. ...........--.---------.----------.

lender year 1948

h. ......................................

ter year 1948-49 .......................

Mar.

1,390 

1,470 

1,500 

1,440 

1,100

896 

988 

1,180 

1,510 

1,550

1,530 

1,480 

1,300 

1,530 

1,900

1,900 

1,820 

1,690 

1,560 

1,490

1,560 

1,910 

2,490 

2,290 

2,370

1,950 

1,840 

1,970 

2,060 

2,080 

1,770

Apr.

1,410 

716 

716 

896 

1,200

1,400 

1,420 

1,510 

1,550 

1,480

1,830 

2,430 

2,620 

2,100 

1,870

1,570 

1,280 

1,440 

1,860 

1,930

1,950 

1,930 

1,740 

1,440 

1,630

1,810 

1,870 

1,930 

1,930 

1,740

Secondfoot -day s

6,981 

3,521 

4,651

103,957

2,752 

15,244 

51,514 

49,198 

41,552 

21,299 

16,428 

18,514 

28,041

259,695

May

1,490 

1,520 

1,740 

1,900 

1,920

1,680 

1,410 

1,200 

1,390 

1,620

1,620 

1,660 

1,490 

1,290 

1,060

996 

1,120 

1,140 

1,040 

980

889 

819 

988 

1,190 

1,340

1,520 

1,530 

1,380 

1,160 

1,150 

1,320

Maximum

355 

413 

870

1,690

241 

1,360 

2,490 

2,620 

1,920 

1,400 

988 

1,050 

1,230

2,820

June

1,360 

1.39O 

1,340 

1,190 

1,110

1,140 

1,230 

1,400 

1,260 

845

422 

26O 

223 

479 

710

868 

819 

499 

199 

196

196 

223 

355 

433 

349

271 

452 

676 

722 

682

July

557 

440 

404 

321 

370

614 

924 

959 

854 

777

595 

600 

716 

812 

826

600 

548 

664 

840 

959

988 

742 

18 

9 

8

6 

63 

294 

330 

327 

263

Minimum

19

48 

25

3

3 

82 

896 

716 

819 

196 

6 

8 

648

3

Aug.

322 

562 

699 

752 

740

547 

191 

188 

188 

114

8 

8 

152 

526 

581

746 

819 

819 

819 

812

812 

805 

798 

791 

784

777 

770 

764 

758 

812 

1,050

Mean

225 

117 

150

284

88.8 

544 

1^662 

1,640 

1,340 

710 

530 

597 

935

711

Sept.

1,230 

1,200 

1,170 

1,150 

1,120

1,090 

1,080 

1,060 

1,040 

1,030

1,020 

1,020 

1,050 

1,000 

980

966 

938 

917 

896 

861

833 

812 

791 

758 

728

682 

664 

659 

648 

648

Runoff in 

acre-feet

13,850 

6,980 

9,230

206,200

5,460 

30,240 

102,200 

97,580 

82,420 

42,250 

32,580 

36,720 

55,620

515,100
GILA RIVER BASIN 

Oak Creek near Cornvllle, Ariz.

413

Location.- Water-stage recorder, lat, 34°46', long. 111°53', in SE£ sec. 23, T. 16 N., R. 4 

317771^Jyidge 0.2 mile upstream from Page Springs, 4 miles northeast of Cornville, and 

11 miles upstream from mouth.

Drainage area.- 357 square miles.

Records available.- July 1940 to September 1945, April to September- 1949.

Extremes.- Maximum, discharge during year, 2,260 second-feet Sept. 9 (gage height, 7.15 feet); 

minimum, 12 second-feet July 1 (gage height, 2.20 feet).

1940-45, 1948-49: Maximum discharge, 6,020 second-feet July 30, 1945 (gage height, 

7.80 feet); minimum, 6 second-feet July 27, 1940 (gage height, 1.98 feet). 

Maximum stage known, 23 feet Mar. 3, 1938, from floodmarks.

Revisions^- The maximum discharge for the water year 1948 has been revised to 605 secondfeet July 26 (gage height, 4.71 feet), superseding figure published in Water-Supply 

Paper 1119. -

Remarks.- Records good except those for periods of douotful gage-height record, which are 

poor. Several small diversions above station for irrigation.

Rating table, water year 1948-49 (gage height, in feet,

and discharge, in second-feet)

(Shifting-control method used Dec. 28 to Feb. 24, 

Apr. 28 to July 21)

2.3 15 3.5 179 

2.5 30 4.0 320 

2.7 47 4.5 510 

2.9 70 5.0 750 

3.2 116 5.8 1,200

Discharge, in second- feet, water year October 1948 to September 1949

Day

1 

2 

Z 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

2O

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

28 

28 

26 

24 

28

28 

27 

25. 

25 

25

26 

26 

26 

25 

26

26 

26 

26 

30 

32

32 

31 

30 

30 

30

32 

32 

38 

40 

48 

75

Nov.

43 

40 

40 

39 

39

40 

39 

38 

38 

37

37 

36 

36 

36 

35

34 

34 

34 

35 

36

35 

35 

35 

35 

35

36 

34 

34 

34 

34

Dec.

35 

36 

35 

33 

33

34 

34 

34 

34 

35

34 

33 

33 

32 

33

33 

34 

35 

36 

36

36 

36 

43 

85 

57

48 

50 

162 

84 

57 

56

Jan.

83 

87 

63 

50 

46

46 

46 

46 

46 

55

57 

58 

146 

174 

135

102 

84 

71 

64 

65

60 

58 

81 

84 

88

81 

68 

58 

55 

51 

50

Feb.

51 

51 

50 

50 

50

49 

48 

50 

51 

49

51 

63 

63 

54 

50

50 

54 

71 

102 

122

141 

150 

218 

287 

334

275 

251 

272

Month

Octo 

NOve 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

186 

161 

199 

290 

376

426 

498 

510 

f380 

f406

532 

596 

625 

635 

725

832 

970 

942 

942 

1,020

560 

725 

458 

d320 

d250

d200 

d200 

516 

620 

d350 

d300

Apr.

d250 

d250 

d270 

f402 

494

778 

778 

1,140 

1,190 

992

890 

907 

898 

795 

f627

470 

386 

296 

281 

223

174 

150 

131 

118 

99

87 

70 

60 

51 

48

Secondfoot -day s

951 

1,093 

1,396

-

2,258 

3,107 

15,750 

13,305 

966 

1,073 

749 

777 

1,605

43,030

Peak discharge (base, 800 sec. -ft.).- Mar. 20 (2 a.m.)

May

46 

44 

39 

35 

34

36 

36 

36 

35 

32

32 

32 

32 

28 

27

32 

37 

34 

32 

32

32 

30 

23 

24 

23

24 

24 

21 

23 

22 

24

Maximum

75 

43 

162

-

174 

334 

1,020 

1,190 

46 

161 

35 

59 

260

1,190

June

24 

24 

24 

24 

27

28 

28 

29 

41 

32

35 

51 

35 

32

30

24 

22

161 

64 

44

37 

36 

33 

35 

32

29 

28 

24 

21 

19

July

16 

21 

20 

24 

27

24 

27 

24 

22 

23

24 

28 

26 

35 

25

33

31 

18 

17 

21

24 

33 

24 

28 

28

24 

21 

20 

21 

20 

20

Aug.

21 

21 

29 

59 

31

27 

25 

28 

37 

29

25 

21 

21 

21 

23

24 

24 

22

21 

21

21 

19 

39 

24 

21

24

21 

22 

19 

18 

19

Sept.

20 

19 

23 

24 

23

23 

22 

23 

26O 

251

f!53 

f49 

flOS 

76 

39

37 

36 

32 

32 

32

32 

30 

29 

30 

29

28 

28 

50 

39 

33

Minimum Mean »£«£

24 30.7 1,89O 

34 36.4 2,170 

32 45.0 2,77O

-

46 72.8 4,480 

48 111 6,160 

161 508 31,240 

48 444- 26,390 

21 31.2 1,920 

19 35.8 2,130 

16 24.2 1,490 

18 25.1 1,540 

19 53.5 3,180

16 118 85,360

1,470 sec. -ft.; Mar. 29 (6 a.m.) 832 sec. -ft.

Apr. 9 (2 a.m.) 1,840 sec.-ft.; June 18 (2:30 p.m.) 970 sec.-ft.; Sept. 9 (10 p.m.) 2,260 sec.-ft.

d Doubtful gage-height record; discharge computed on basis of weather records and records for Clear 

Creek below Willow Creek, near Wlnslow.

f Computed from wholly or partly estimated gage heights.
414 GILA RIVER BASIN 

Agua Pria River near Mayer, Ariz.

Location.- Water-stage recorder, lat. 34°19', long. 112"04', in NWiSEjL sec. 20, T. 11 N., 

H. 3 E., at Sycamore dam site, 700 feet downstream from Bigbug Creek and 12 miles 

southeast of Mayer. Altitude of gage, 3,434 feet (levels by Maricopa County Municipal 

Water Conservation District No. 1).

Drainage area.- 588 square miles.

Records available.- January 1940 to September 1949.

Extremes.- Maximum discharge during year, 2,440 second-feet Jan. 13 (gage height, 6-37 

reet); minimum daily, 0.1 second-foot on many days.

1940-49: Maximum discharge, 13,000 second-feet Mar. 1, 1941 (gage height, 11.97 

feet), by alope-area method; negligible flow at times during summer months in most 

years when entire flow was diverted to Perry Canal above station, seepage flow only 

past gage.

Remarks.- Records fair expept those for periods of fragmentary or no gage-height record, 

'wnicn are poor. Diversions above station for irrigation and mining. Figures of daily 

discharge do not include water diverted Just above station to Perry Canal.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1

2

3

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

fO.l

f.l f.l

f.l

f.l f.l f.l f.l f.l

f.l f.l.1

;i

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

17

a7

Month

OctoberNovember. . .

December. . .

Calendar 

year 1948

January. . . .

February. . .

March. .....

April......

June .......

July.......

August. ....

September. .

Water year 

_J1948-49. .

Nov.

a4

al

a. 8

a. 7

. a. 6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.5

.5

.4

.4

.4

.5

.5

.5

.5

-

Deo.

0.6

.5

.4

.4

.5

.5. 5

.5

.2

.1

.1

.2

.2

.5

3.2

1.2

1.4

1.4

1.6

1.6

1.8

3.8

2.4

2.4

2.4

3.0

20

3.1

1.6

2.4

Jan.

4.8

5

3.4

2.2

2.2

2.2

2.4

3.4

9

11

52

932

169

45

12

6

2.5

1.9

1.1

.7

.6

52

70

241

113

58

23

7

7

a7

Feb.

a7

a6

6

6

4.9

4.9

4.3

4.3

3.S

6

18

Mar.

a 48

a30

a24 

323

a32

a36

a36

25

a21

a!5

a!2

alO

6 aS

3.1 a7 j-n a6

l!9K

36 b

93 ft a5

91 V

99 1 a2

107

158

157

160

69

68

65

_

-

. al

.6

1.0

Apr.

1.2

1.0

.6

3 z'.z2

1.2

.6

.5

.5

.4

.4

.4

.4

.4

.2

.2

.4

.4

.4

.2

.2

.2

.4

.2

.2

.2

.Z

.2

.1

.1

-

Hay

0.1

.1.1.1

.1

.1.1

.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.2

.2

.2

.2

.2

.2

.4

.4

.5

.6

.6

.8

.6

.8

Observed

Secondfoot -days

27.0

20.2

56.9

1,774.6

1,848.8

1,215.9

376.6

16.8

1 9.0

40.5

143.3

86.1

239.0

4,080.1

Discharge in second-feet

Maximum

17

4

20

416

932

160

48

3.2

.8

7

72

46

74

932

Minimum

0.1

.4

.1

-

.6

1.9

.6

.1

.1

.1

.1

.6

.5

.1

Mean

0.87

.67

1.84

4.86

59.6

43.4

12.1

.56

£9

1.35

4. 62

2.78

7.97

11.2

Runoff 

in 

acre-feet

54

40

113

3,520

3,670

2,410

747

33

18

80

284

171

474

8,090

June

0.8

1.0

1.0 

1.0

1.0

1.0

1.0

1.0

1.2

7

2.4

1.6

1.4

1.4

1.4

1.4

1.4

7

fl.6

fl.4

1.3

1.0

.5

.1

.1

.1

.1

.1

.1

.1

-

Diversion by

Perry Canal 

(acre-feet)

18

0

4.4

182

0

0

82

184

89

22

12

0

0

411

July

0.1

.2

2.-S 3 . 8

2.4

1.8

1.6

1.3

.1

11

5

6

5

2.0

1.4

1.0

1.0

1.0

1.0

.8

.2

.1

72

f!4

al.5

al.Z

^ al

Aug.

f9

al.6

al.Z 

al.O

1.0

1.2

1.4

46

a5

a2

> al

a. 9

a. 8

.8

Sept.

0.5

.5

.5 

.5

.5

.5

.6

.6

15

35

f!4

f3.8

f4.8

74

a3.5

a2

al.5

.6 |\

.8

.8

8

.8 I ,

.8 \f al

.8

11

.8

.8 f

. 6 1 f69

.6 al.Z

.6 1.0

.6 1

Adjusted for diversion

Runoff 

in 

acre-feet

72

40

117

3,700

3,670

2,410

829

217

107

102

296

171

474

8,500

Mean 

(secondfeet)

1.16

.67

1.91

5.11

59.6

43.4

13.5

3.66

1.73

1.72

4.82

2.78

7.97

11.7

Peak discharge (base. 2,000 sec.-ft.).- Jan. 13 (8:30 a.m.) 2,440 sec.-ft.

a Ho gage-height record; discharge computed on basis of adjoining good record and weather records.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
OILA RIVER BASIN 

Agua Fria River at Lake Pleasant Dam, Ariz.

415

Location.- Staff gage, lat. 33°51', long 112°16', in NW£ sec. 21, T. 6 N., R. IE., left 

upstream end of Lake Pleasant Dam, 24^ miles upstream from New River. Datum of gage 

is 1,431.2 feet above mean sea level, datum of 1929.

Drainage area.- 1,460 square miles.

Records available.- November 1910 to September 1914 (gage heights and discharge measurements only), October 1914 to September 1919, October 1919 to September 1924 (gage 

heights only and some discharge measurements), October 1933 to September 1949 (monthly 

discharge).

Average discharge.- 21 years (1914-19, 1933-49), 139 second-feet.

Extremes.- 1910-24, 1933-49:- Maximum discharge, about 105,000 second-feet Nov. 27, 1919 

(gage height, 33 feet, datum then in use, from floodmarks), from rating curve extended 

above 13,000 second-feet on basis of velocity-area studies; no flow during spring and 

summer of several years.

A discharge of about 105,000 second-feet (gage height, 30 feet, same datum as in 

1919, from floodmarks) occurred Jan. 27, 1916. On basis of comparative gage heights, 

flood of Nov. 27, 1919, is believed to'have been greater.

Remarks.- Records poor. Figures given herein represent flow into Lake Pleasant. Discharge computed on basis of three factors as follows: 1. Change in contents of Lake 

Pleasant and in contents of small reservoir behind diversion dam l£ miles downstream 

from Lake Pleasant. 2. (a) Release from Lake Pleasant as measured by water-stage 

recorder and sharp-crested rectangular weir in canal 650 feet downstream from intake 

at diversion dam, rated by current-meter measurements and frequently checked by a 

Clausen-Pierce weir rule; and (b) spill from Lake Pleasant as measured over diversion 

dam (none since May 13, 1941). 3. Effect of rainfall and evaporation on lake; evaporation assumed as 0.85 of that measured once daily in 3-foot-square land pan buried 1^ 

feet in ground near left end of Lake Pleasant Dam. Effect of bank storage and bank 

release in Lake Pleasant is not taken into account. Diversions above Lake Pleasant 

for irrigation.

Cooperation.- Records collected and prepared in cooperation with Maricopa County Municipal 

water conservation District No. 1.

Revisions (water year).- W 1049: 1918.

Monthly discharge, water year October 194s to September 1949

Month

Calendar year 1948. .......

May. ........................

September. ..................

Water year 1948-49. .......

Mean 

(second-feet)

0 8

87 2

7 9

35.3

48.8

Runoff In 

acre-feet

932

2,100

35,320

939921 O - 51 - 28
416 GILA RIVER BASIN

Lake Pleasant at Lake Pleasant Dam, Ariz.

Location.- Staff gage, lat. 33°S1', long. 112°16', In NW^ sec. 21, T. 6 N., R IE at

left upstream end of Lake Pleasant Dam on Agua .Pria River. Datum of gage is 1 431 2

feet above mean sea level, datum of 1929 

Drainage area.- 1,460 square miles.

Hecoras available.- February 1928 to September 1949. (Yearly data only prior to 1939 ) 

Extremes.- Maximum contents during year, 29,400 acre-feet Apr. 21-23 (gage height 110 39

feet); minimum, 120 acre-feet Dec. 3-13. '

1928-49: Maximum contents, 178,500 acre-feet Apr. 19, 1941 (gage height, 170.13

feet), of which 500 acre-feet was uncontrolled storage; no storage 'Sept. 5, 1933, July

Remarks.- Lake is formed by multiple-arch dam; dam completed and storage began in 1927

Capacity, 163,800, acre-feet (revised) between gage heights 59 feet (25 feet above center 

line of outlet works) and 170.0 feet (top of spillway gates). There is no storage below 

gage height 59 feet because of accumulated sediment. Water released from reservoir 

flows down river channel l£ miles to diversion dam where it Is diverted for irrigation 

near Beardsly. Figures given herein represent usable contents in Lake Pleasant Contents of small reservoir formed by diversion dam is not included

Cooperation.- Gage-height record furnished by Maricopa County Municipal Water Conservation 

District No. 1.

Capacity table (gage height. In feet, and contents, In acre-feet).

(Prepared by Geological Survey from contour surveys made "by the Maricopa County Municipal Water Conservation District Ho. 1 In 1913 and 1934, and underwater field survey by the. 3eologlcal Survey below caire height 61.9 .feet In "May 1948. This table 

first used Oct. 1, 1948, but Is practically the same as table used during the 

1947-48 water year during which the contents did not exceed 4,O6O acre-feet)

59

60

65

70

75

80

30

670

1,700

3,110

5,050

85

90

95

100

110

12O

7,600

10,800

14,570

18,820

28,920

41,740

130

140

150

160

170

58,020

78,080

102,200

130,700

163,800

Contents at 5 p.m.. In acre-feet, water year October 1948 to September 1949

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

151

150

150

149

148

148

147

147

146

146

145

145

144

142

142

140

139

138

138

137

136

135

134

133

132

132

131

132

132

131

131

Ncv.

135

134

134

133

132

132

131

130

130

129

129

12.8

128

127

127

126

126

125

122

122

122

122

122

122

121

121

121

121

121

121

-

Dec.

121

121

120

120

120

120

120

120

120

120

120

120

120

128

128

128

128

128

128

130

131

134

159

418

476

481

486

625

751

795

810

Jan.

813

899

954

967

981

986

986

986

986

996

1,370

1,710

2,480

6,630

7,590

8,030

8,310"

8,500

8,640

8,730

8,840

8,920

9,000

9,290

11,300

14,100

15,000

15,500

15,800

16,000

16,200

Feb.

16,300

16,500

16,600

16,700

16,800

16,900

17,000

17,100

17,100

17,200

17,300

17,500

17, 600

17,800

17,900

18,000

18,100

18,200

18,500

18,900

19,300

19,800

20,400

21,100

21,800

22,500

23,000

23,400

_

_

-

Mar.

23,900

24,100

24,300

24,500

24,700

25,000

25,300

25,600

25,800

26,000

26,200

26,400

26,500

26, 700

26,800

27,000

27,100

27,300

27,400

27,600

27,700

27,800

27,900

28,000

28,000

28,100

28,100

28,200

28,200

28,200

28,300

Apr.

26,400

28,400

28,500

28,500

28,600

28,700

28,800

28,900

28,900

29,000

29,000

29 ,.100

29,200

29,200

29,200

29,200

29,300

29,300

29,300

29,300

29,400

29,400

29,400

29,300

29,300

29,300

29,300

29,300

29,300'

29,300

-

Hay

29,300

29,300

29,200

29., 200

29,200

29,200

29,100

29,100

29,100

29,100

29,000

29,000

29,000

28,900

28,900

28,800

28,800

28,700

28, 700

28,600

28,600

28,500

28,500

28,400

28,400

28,300

28,300

28,200

28,200

28,100

28,000

June

28,000

28,000

27,900

27,900

27,800

27,800

27,700

27,700

27,700

27,600

27,600

27,500

27,500

27,500

27,700

27,500

27,200

27,200

27,000

26,800

26,600

26,400

26,200

25,900

25,700

25,400

25,200

24,900

24,600

24,300

-

July

24,100

23,800

23,500

23,300

23,000

22, 700

22,400

22,100

21,800

21,500

21,200

20, 800

20,500

20,200

19,800

19,500

19,100

18,800

18,500

18,100

17,700

17,200

17,000

16,600

16,200

15,900

15, 600

15,200

14,900

14,500

14,200

Aug.

13,800 '

13,400

13,100

12,800

12,500

12,200

12,100

12,100

12,000

11,800

11,600

11,400

11,200

11,000

10,800

10,600

10,300

10,100

9,860

9,600

9,320

9,050

8,780

8,540

8,270

7,990

7,690

7,410

7,120

6,850

6,600

Sept.

6,350

6,100

5,900

5,640

5,370

5,120

4,900

4,660

4,400

4,120

4,530

4,440

4,330

4,850

4,870

4,950

4,950

4,960

4,950

4,950

4,950

4,950

4,920

4,880

4,820

4,790

4,740

4,680

4,590

4,550

-

Monthly gage height and contents, water year October 1948 to September 1949

Date

Dec. 31.. .................

Calendar year 1948! .....

Sept. 30. ..................

Water year 1948-49. .....

Gage height 

(feet)t

65.76

-

78.85

-

Contents 

(acre-feet)

121

810

-

29,300

24,300

6,600

4,550

-

Change In contents 

during month 

(acre-feet)

-23

-10

-1-689

+600

+7,200

+4,900

+1,000

-1,300

-3,700

-10,100

-7,600

-2,050

+4,400

t Gage height at 5 p.m.
GILA RIVER BASIN 417

Hassaymapa River at Box dam site, near Wickenburg, Ariz.

Location.- Water-stage recorder, lat. 34°02'35", long. 112°42'35", in SE£ sec. 7, T. 8 N. 

R. 4 W., unsurveyed, at Box dam site, 1\ miles upstream from Wickenburg. Datum of 

gage is 2,238.28 feet above mean sea level, datum of 1929.

Drainage area.- 417 square miles.

Records available.- January to June 1938, May 1946 to September 1949.

Extremes.- Maximum discharge during year, 2,910 second-feet Sept. 26 (gage height, 5.55 

reet); minimum, 0.2 second-foot Oct. 3.

1938, 1946-49: Maximum discharge, about 10,000 second-feet Mar. 3, 1938 (gage 

height, 8.5 feet, present site and datum, from floodmarks); minimum, that of Oct. 3, 

1948.

Remarks.- Records good except those below 1 and above 100 second-feet, which are fair, 

and tnose for periods of fragmentary or no gage-height record, which are poor. Small 

diversions above station for irrigation and mining.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30' 

31

Oct.

0.6 

.4 

.4 

.4. 

.3

.3 

.6 

.6 

.B 

.9

.9 

.9 

.6 

.5 

.8

.4 

.6 

.8 

.8 

.8

.6 

.5 

.6 

.9 

1.0

1.0 

1.2 

.6 

.4 

.4 

.5

Hov.

0.6 

1.0 

.9 

.5 

.5

.9 

1.0 

1.2 

1.3 

1.3

1.2 

1.3 

1.0 

.9 

.9

.8 

.6 

.6 

.6 

.8

1.0 

.8 

.5 

.8 

1.2

1.2 

1.0 

fl.O 

fl.2 

fl.3

Dec.

1.5 

1.5 

1.4 

1.3 

1.2

al.2 

al.2 al.2- 

al.2 

al.2

1.2 

1.0 

1.2 

1.0 

1.0

1.0 

1.0 

.9 

.9 

.8

.8 

.8 

14 

e3.7 

1.5

.9 

f.6 

f.5 

f.5 

f .4 

f9

Jan.

f!7 

6 

5 

5 

4.5

4,5 

4.5 

5 

5 

5

9 

7 

210 

. a80 

a30

alO 

a5 

1.5 

.8 

.4

.4 

e.4 

e.3 

11 

236

f!06 

57 

34 

22 

11 

12

Feb.

8 

8 

8

9 

9

8 

7 

8 

9 

9

12 

18 

23 

20 

20

21 

25 

41 

63 

72

75 

75 

90 

102 

105

90 

79 

75

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

U»v

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

60 

46 

38 

42 

50

58 

54 

55 

52 

45

43 

46 

45 

43 

43

46 

50 

50 

46 

43

43 

41 

37 

36 

f29

f26 

f22 

f20 

f!9 

21 

26

Apr.

37 

36 

33 

32 

28

30 

34 

38 

45 

46

43 

40 

40 

38 

37

36 

34 

34 

31 

27

22 

2O 

19 

17 

17

15 

14 

13 

11 

9

Secondfoot -days

19.9 

27.9 

55.6

1,007.2

905.3 

1,089 

1,280 

876 

74.8 

40.1 

375.5 

109.8 

988.6

5,842.5

May

8 

7 

5 

4.2 

3.7

3.7 

3.4 

2.9 

2.3 

1.8

1.8 

1.7 

1.8 

1.7 

1.7

1.5 

1.7 

1.8 

2.1 

1.8

1.7 

1.4 

1.5 

1.5 

1.7

1.7 

1.4 

1.0 

.9 

.9 

1.5

Maximum

1.2 

1.3

14

539

236 

1O5 

60 

46 

8 

1.7 

131 

37 

485

485

June

1.7 

1.7 

1.5 

1.3 

1.3

1.2 

1.0 

1.0 

1.0 

1.4

1.5 

1.5 

1.4 

1.5 

1.7

1.5 

1.5 

1.5 

1.5

1.7

1.4 

1.4 

1.4 

1.4 

1.3

1.3 

1.2 

.6 

.9 

.8

July

0.9 

.8 

.9

131 

fl!2

f2.3 

2.3 

1.8 

1.8 

1.7

11 

34 

3.4 

2.6, 

2.1

2.1 

2.1 

2.1 

2.3 

2.1

1.8 

1.7 

22

10 

4.0

2.9 

2.6 

2.6 

2.6 

2.3 

3.7

Minimum

0.3 '.5 

.4

.3

.3

7 

19 

9 

.9 

.6 

.8

.3

Aug.

2.3 

2.3

4.1 

10 

f2.1

fl.8 

f37 

f!8 

f2.1 

1.8

al.6

 al.4 

> al.3

> al.2 

al.l

Mean

0.64 

.93 

1.79

2.75

29.2 

38.9 

41.3 

29.2 

2.41 

1.34 

12.1 

3.54 

33.0

16. 0

Sept.

> al.l

f al.O

f5 

51

162 

a5 

a2 

f84 

f!6

f2.1 

fl.8 

fl.8 

fl.8 

2.9

1.8 

1.4

1.3 

1.3 

1.4

485 

f59 

f79 

f!2 

2.6

Runoff in 

acre-feet

39 

55 

110

2,000

1,80O 

2,160 

2,540 

1,740 

148 

80 

745 

218 

1,960

11,600

Peak discharge (base. 500 see.-ft.).- Jan. 18 (1 p.m.) 651 sec.-ft.; Jan. 25 (11:30 a.m.) 708 sec.- 

ft.j July 4 ;il p.m.) 2,510 Beo.-ft.i July 23 (8 a.m.) 359 sec.-ft.} Aug. 7 (8:3O p.m.) 434 sec.-ft.; 

Sept. 10 (3 a.m.) 570 sec.-ft.; Sept. 11 (3 a.m.) 1,310 sec.-ft.; Sept. 14 (7:3O p.m.) 970 sec.-ft.; 

Sept. 26 (1 p.m.) 2,910 sec.-ft.

a No gage-height record; discharge computed on basis of adjojjiing good record.

e Gage height affected by unstable channel conditions; discharge computed from estimated effective 

gage heights.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
418 SULPHUR SPRING VALLEY

WHITEWATER DRAW BASIN 

Whitewater Draw near Douglas, Ariz.

Location.- Water-stage recorder, lat. 31°21'15", long. 109°35'00", In SW&3E£ sec. 10, T. 

24 a., R. 27 E., at bridge on U. S. Highway 80, lj miles upstream from International 

boundary and 2 miles west of Douglas. Datum of gage is 3,907.10 feet above mean sea 

level, datum of 1929.

Drainage area.- 1,023 square miles.

Records available.- August to October 1911 (gage heights and discharge measurements only), 

July to October 1912, January 1913 to September 1919, October 1919 to April 1922 (gage 

heights and discharge measurements only), June 1930 to December 1933, May 1935 to 

September 1949.

Average discharge.- 22 years (1913-19, 1930-33, 1935-46, 1947-49), 11.9 second-feet.

Extremes.- Maximum discharge during year, 1,790 second-feet July 18 (gage height, 9.77 

reetj; minimum daily, 0.1 second-foot on many days.

1930-49: Maximum discharge. 3,450 second-feet Aug. 10, 1931 (gage height, 12.15 

feet); minimum, 0.1 second-foot at times during several years.

Maximum discharge known, 4,050 second-feet (estimated) July 27, 1919.

Remarks.- Records fair. Diversions above station for irrigation, mostly by pumping from 

ground water.

Discharge, In aeeond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.4

.4 

.4

.5 

.5

.6

.6 

.6 

3.9 

3.7 

.9

.5 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Nov.

0.4 

.4 

.4 

.4

.3

.'3 

.3 

.4 

.3 

.3

.4

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4

.3 

.3

.3 

.4 

.4 

.4 

.4

Dec.

0.4 

.4 

.4 

.4 

.4

.5 

.5 

.5 

.5 

.4

.3 

.3 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.4 

.6

.9 

19 

6.7 

.9 

.5 

.5

Jan.

0.6 

.5 

.6 

.5 

.5

.4 

.4

.6 

.7 

2.4

.6 

.5 

8.7 

4.8 

.6

.6 

.5 

.4 .4- 

.4

.4

.4 

.4 

.4 

.6

3.9 

3.0 

.9 

.5 

.3 

.4

Feb.

0.4 

.3 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4

.7 

.5 

.6 

.4

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

Month

Oo to 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

0.2 

.2 

.2 

.2 

.3

.3 

.4 

.4 

.4 

.4

.4

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Apr.

0.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.3 

.3

.2 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Secondfoot-days

18.8 

10.1 

38.2

4,288.2

35.9 

9.2 

9.4 

6.9 

6.0 

12.0 

2,014.3 

350.0 

640.1

3,150.9

May

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Maximum

3.9 

.4

19

1,190

8.7 

.7 

.4 

.3 

.3 

6.3 

, 622 

123 

295

622

June

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1

.1

.2 

6.3 

.7 

.3

.3 

.2 

.2 

.2

.1

.1 

.1 

.1. 

.2 

.2

July

0.4 

6.9 

70 

5.4 

1.1

.4

.3 

.3 

.4 

28

338 

68 

3.2 

1.6 

9.8

6.0 

15 

387 

622 

138

42 

2.3 

19 

209 

5.8

3.2 

1.2 

- .9 

24 

4.5 

.6

Minimum

0.3 

.3 

.3

.1

.3 

.2 

.2 

.2 

.1 

.1 

.3 

.3 

.2

.1

Aug.

0.4 

.4 

22 

8.4 

1.8

.6 

.6 

105 

123 

38

12 

3.3 

1.4 

.8 

.6

.6 

.6 

.5 

.4 

.4

.4 

.4

.6 

5.7 

13

4.8 

1.8 

1.1 

f .7 

f.4 

f .3

Mean

0.61 

.34 

1.23

11.7

1.16 

.33 

.30 

.23 

.19 

.40 

65.0 

11.3 

21.3

8.63

Sept.

fO.2 

.2 

.2 

.4 

.2

.2 

.3 

13 

70 

34

6.1 

37 

21 

295 

133

12 

5.9 

3.0 

1.3 

.9

.7 

.6 

.6 

.6 

.6

.7 

.6 

.6 

.6 

.6

Runoff In 

acre-feet

37

20 

76

8,510

71 

18 

19 

14 

12 

24 

4,000 

694 

1,270

6,260

Peak discharge (base. 1,000 see.-ft.).- July 11 (3 a.m.) 1,450 sec.-ft.; July 18 (12 p.m.) 1,790 

sec.-ft.

f Discharge computed from partly estimated gage heights.
MISCELLANEOUS DISCHARGE MEASUREMENTS 419

Measurements of stream flow in the Colorado River Basin made at points other -than 

gaging stations are given in the following table:

Miscellaneous discharge measurements In Colorado River Basin during 

water year October 1948 to September 1949

Tributaries above Gunnlson River

Date

Hay 26

May 11

Oct. 20

May 4

Sept. 18

Stream

South Pork Williams 

River.

Slmpson Creek. .....

North Pork Tenmile 

' Creek.

.... do .............

Tributary to or 

diverting from 

Williams River....

Keyser Creek. .....

Tenmile Creek. ....

.... do ............

Locality

Sec. 17, T. 3 S., R. 77 W., at mouth, 

near Leal, Colo.

Sec. 25, T. IS., R. 77 W. , at mouth, 

near Leal, Colo.

Sec. 34, T. 5 S., T. 78 W. , near 

Frisco, Colo.

near Dlllon, Colo.

.... do ...............................

Discharge 

(sec. ft.)

82.7

31.4

5.4 

20.6

12.7

1.4

.7

.3

2.2

2.7

2.5

2.3

2.5

6.S

20.7

26.7

53.2

110

2.5

.5

2.0

3.2

8.7

1.4

Tributaries between Gunnlson River and Green River

Sept. 24 Indian Creek. ...... Colorado River. . . . Lat- 37°50', long. 109°31', approximately sec. 9, T. 34 S., R. 22 E., 

Utah (unsurveyed) Just above small 

drainage from south that Joins 

Indian Creek lOOjfeet above gaging 

station on Indian Creek near Montlcello, Utah.

O.S

Green River Basin

July 21

Jan. 5 

Mar. 24

23

Nov. 23

Feb. 23

Mar. 17

Apr. 4

May 2

16

Aug. 9

Sept .'12

Upper Ashley Canal. 

Duchesne River. ....

Rock Creek. ........

canal.

....do.............

Ashley Creek. ..... 

Green River. ......

River. 

Duchesne River. . . .

.. . .do. ...........

Sec. 31, T. 3 S., R. 21 E., Salt 

Lake meridian, Utah, about 400 

feet below point where Upper 

Ashley Canal takes water out of 

Ashley Creek. 

Sec. 19, T. IN., R. 8 W., Utah, 

100 feet above mouth of West Pork 

Duchesne River.

quarter of a mile above mouth. 

Sec. 24, T. 1 S., R.' 12 E., approximately 10 miles below gaging 

station on Rock Creek near 

Mountain Home, Utah.

Utah, 200 feet above confluence 

of Ulnta power canal and -Pole 

Creek power canal.

.... do ...............................

58.6 

35.4

42.7

9.4

Tributaries between Green River and Little Colorado River

Oct. 2 

2 

3 

* Plel

Sprlngi ............

Clear-water Canyon 

Creek

t estimate.

Colorado River. . . .r ;At mouth of Gypsum Canyon, In Utah. 

Enters river on left bank at mile 

196.5 above Lees Perfy, Arlz. 

At mouth, In Utah. Enter B river on 

bank at mile 192 above Lees Ferry, 

Arlz. 

At mouth, In Utah. Enters river on 

left bank at mile 182.8 above 

Lees Ferry j Arlz.

*Qj.2 

*.l 

 1.0
420 MISCELLANEOUS DISCHAROE MEASUREMENTS

Miscellaneous discharge measurements in Colorado River Basin during water year 

October 1948 to September 1949 Continued

Tributaries between Green River and Little Colorado River Continued

Date

Oct. 3

5

4

4

4

5

5

5

5

6

7

7

Stream

Unnamed spring .....

Springs .

(Premont River).

yon.

Creek.

Creek

Tributary to or 

diverting from 

Colorado River. . . .

....do............

....do............

Locality

At mouth, in Utah. Enters river on 

right bank at mile 175 above Lees 

Perry, Ariz.

right bank at mile 174 above Lees 

Perry, Ariz.

mouth. Enters river on right bank 

at mile .169. 5 above Lees Perry, 

Ariz. i

right bank at mile 161 above Lees 

Perry, Ariz.

left bank at mile 150 above Lees 

Perry, Ariz.

left bank at mile 149.8 above Lees 

Ferrjr, Ariz.

right bank at mile 136.6 above 

Lees Perry, Ariz.

right bank at mile 132 above Lees 

Perry, Ariz .

right bank at mile 130 above Lees 

Perry, Ariz.

left bank at mile 125 above Lees 

Perry, Ariz.

right bank at mile 120.4 above 

Lees Perry, Ariz.

right bank at mile 118.2 above 

Lees Perry, Ariz.

left bank at mile 113.2 above Lees 

Perry, Ariz.

right bank at mile 95.5 above Lees 

Perry, Ariz .

mouth. Enters river on right 

bank at mile 88.2 above Lees Ferry, 

Ariz.

right bank at mile 84.3 above Lees 

Perry, Ariz.

right bank at mile 81.8 above Lees 

Perry, Ariz.

river on left bank at mile 78 above 

Lees Perry, Ariz.

right bank at mile 77 above Lees 

Perry, Ariz.

mile 76 above Lees Perry, Ariz.

left bank at mile 68.6 above Lees 

Perry, Ariz.

left bank at mile 63.4 above Lees 

Perry, Aria.

left bank at mile 50.8 above Lees 

Perry, Ariz.

right bank at mile 49.3 above Lees 

Perry, Ariz .

left bank at mile 44.4 above Lees 

Perry, Ariz .

right bank at mile 40.5 above Lees 

Perry, Ariz .

right bank at mile 40 above Lees 

Perry, Ariz.

right bank at mile 39.5 above Lees 

Perry, Ariz.

left bank at mile 3±.5 above Lees 

Perry, Ariz.

right bank 3 miles above UtahArizona State line and at mile 33.3 

above Lees Perry, Ariz.

Discharge 

(sec. -ft.)

*1.0 

*2.0

27.1

*.4

*.l

*1.0

*.5

*.2

*.8

*1.6

*.4

40.5

*.2

*.l

*.2

*.2

*.l

*.l

*.8

*.S

*.2

*.6

*.8

*.6

*.l

*.7

* Field estimate.
MISCELLANEOUS DISCHARGE MEASUREMENTS 421

charge measurements in Colorado River Basin during water yeai 

October 1948 to September 1949 Continued

Miscellaneous di

Tributaries between Green River and Little Colorado River Continued

Date

Oct. 7

Stream

Warm Creek .........

Tributary to or 

diverting from 

Colorado River. . . .

f 

Locality

At mouth, at Utah-Arizona State line, 

in sec. 7, T. 44 S., R. 5 E. (unsurveyed) . Enters river on right 

bank at mile 27.8 above Lees Perry, 

Ariz.

Utah-Arizona State Jline . Enters 

river on left bank at mile 25.4 

above Lees Perry, Arlz.

bank at mile 19.8 above Lees Perry, 

Arlz.

bank at mile 16.7 above Lees Perry, 

Ariz.

Discharge 

(sec. -ft.)

*2.5 

4.2

*.l

7.6

* Field estimate.

Little Colorado River Basin

Nov. 16

Dec. 16

June 28

Nov. 16

17

Little Colorado

River.

. . . .do.. ...........

Concho Creek. ......

Puerco River. ......

....do............ .

Colorado River. . . .

.... do ............

Little Colorado

Hiver.

.... do ............

... .do........ ....

Si sec. 3, T. 17 H., R. 20 E., 50

feet below Leroux Wash, near Hoibrook, Ariz.

Si sec. 3, T. 17 H.,, R. 20 E., 600

feet below Leroux Wash, near Hoibrook, Ariz.

Sec. 18, T. 12 H., R. 26 E., below

springs at head of Concho Reservoir, 3 miles southwest of Concho,

Ariz.

NWj sec. 9, T. 17 H., R. 21 E., at

mouth, near Holbrook, Ariz.

....do...... .........................

5.91

8.36

2.46

0

0

Kanab Creek Basin

Oct. 4

Feb. 4 

Mar. 5

Aug. 11

Kanab Creek. .......

....do.............

.. ..do. ............

Colorado River. . . .

. ...do. ...........

.... do ............

SEi sec. 5, T. 43 S., R. 6 W., at 

highway .bridge 4 miles north of 

Kanab, Utah.

Sec. 16, T. 43 S., R. 6 W. , at entrance to head of canal and 2 miles 

north of Kanab, Utah.

highway bridge 4 miles north of 

Kanab, Utah.

trance to tunnel at head of canal 

and 2 miles north of Kanab, Utah.

highway bridge 4 miles north of 

Kanab, Utah.

....do...............................

5.4

13.2

6.0

Virgin River Basin

June 30

30

30

30

30

30

Virgin River. ......

Beaver Dam Wash. . . .

Llttlef leld Canal . .

Bunkerville Canal..

Muddy River ........

....do.............

Colorado 'River. . . .

Virgin River. .....

Beaver Dam Wash . . .

Virgin River. .....

....do............

....do............

'Ei sec. 19, T. 13 S., R. 71 E., at

bridge on U. S. Highway 91, lfc miles '

below Mesquite, He/., below all diversions for Mesquite and Bunkerville.

SWfc sec. 4, T. 40 H., R. 15 W., at

mouth below heading of Littlefleld

Canal, 3/4 mile above Littlefield,

Ariz.

SWfc sec. 4, T. 40 K., R. 15 W., at

mouth of Beaver Dam Wash, 3/4 mile

above Littlefield, Ariz.

Ei sec. 19, T. 13 S., R. 71 E., at

bridge on U. S. Highway 91, li miles

below Mesqulte, Hev.

SE-fc sec. 15, T. 14 S., R. 65 E., at

Home Ranch weir 5 miles northwest of

Moapa, Nev.

NE£ sec. 2, T. 15 S., R. 66 E., at

U. S. Highway 91, at Glendale, Hev.

8.80

4.15

.98

11.9

40.8

39.4

Gila River Basin

Jan. 19 

June -24

June 23

Gila River......

San Pedro River.

.... do..........

Colorado River.... 

Gila River........

.... do............

E£ sec. 19, T. 8 S., R. 32 E., at 

State highway bridge at Duncan, 

Ariz.

E£ sec. 33, T. 23 S., R. 22 E., at 

bridge i mile east of Falomlnas, 

Ariz., and 4 miles below international boundary.

Wt sec. 11, T. 17 S., R. 20 E., at 

bridge on U. S. Highway 86, 1 mile 

east of Benson, Arlz.
422 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements 

October 1948 to S<

In Colorado River Basin during water year 

iptember 1949 Continued

Olla Hlver Basin Continued

Date

Nov. 12

June 29

29

24

23 

23 

Mar. 30 

June 21

Mar. 30

Stream

Black HI vert .......

....do.............

East Fork Black 

Hlver.

West Pork Black

Hlver.

Beaver Creek. ......

Monte zuma Well 

(outflow).

Ague Prla River. . . . 

.... do .............

Black Canyon, 

Creak

Tributary to or x 

diverting from 

Black Hlver. ......

Verde Hlver. ...... 

Wet Beaver Creek. . 

Olla Hlver........

Ague Prla Hlver . . .

Locality

mouth at Kelvin, Arlz.

pumping plant, 2,500 feet below 

Preezeout Creek and 8 miles north 

of Point of Pines, Arlz.

SWi sec. 14, T. 6 N., R. 28 E., at 

road crossing 14 miles south of 

Eager, Arlz.

Buffalo Crossing, f mile above confluence with West Pork Black Hlver 

and 14 miles southwest of Alpine, 

Arlz.

road crossing lj miles above confluence with East Pork Black River 

and 15 miles southwest of Alpine, 

Arlz.

crossing i mile above Devore Ranch 

and 2i miles above mouth. 

SWiNWi sec. 29, T. 14 N. , B. 5 E. , 

1/8 mile below site of former gage 

at Camp Verde, Arlz. 

Wi sec. 32, T. 15 N., R. 6 E., at 

Montezuma Well, 9 miles northeast 

of Camp Verde, Arlz. 

Si sec. 34, T. 9 N., R. 2 E., above 

mouth of Black Canyon, at Canon, 

Arlz.

of Black Canyon, about 1 mile 

below bridge on Arizona State Highway 69 at Canon, Arlz. 

Ei sec. 33, T. 9 N., H. 2 E., i mile 

above mouth, near Canon, Arlz.

Discharge 

(sec. -ft.)

13 7

1.93

9.93 

2.07

.5

25.1

t Water pumped from Black Hlver at time these 

13.5 sec.-ft.5 Dec. 18, 17.9 sec.-ft.j June 21,

measurements were made was as follows: Nov. 12, 

21.4 sec.-ft.; July 12, 18.3 see.-ft.
INDEX

Accuracy of field data and computed

results.......................... 5-6

Acre-foot, definition of.......... .... 1

Adamana, Ariz., Puerco River near...... 343'

Agencies other than Geological Survey,

records collected by............. 12-14

Agua Fria River at Lake Pleasant Dam,

Ariz............................. 415

discharge measurement of............. 423

near Mayer, Ariz..................... 414

Alamo, Ari2., Bill Williams River near. 357 

Santa Maria River near............... 358

Alamo Canal at Andrade, Calif.......... 40,50

All-American Canal above Pilot Knob

wasteway, Calif...................40,44

near Imperial Dam, Ariz.-Calif....... 40,43

Almont, Colo. , East River at........... 113

Taylor River at...................... 113

Altonah, Utah, Yellowstone Creek near.. 258 

Alva B. Adams tunnel at East Portal,

near Estes Park, Colo............ 16

diversion by......................... 26,27

Andrade, Calif., Alamo Canal at........ 40,50

Animas River above Tacoma, Colo........ 315

at Durango. Calif.................... 316

at Farmington, N. Mex................. 318

at Howardsville, Colo................ 3'14

near Cedar Hill, N. Mex.............. 317

Arapho Creek at Monarch Lake Outlet,

Calif..,......................... 55

Araz drain, Ariz., return surface flows

from, to Colorado River........40,51-52

Ashley Canal (upper), Utah, discharge

measurement of................... 420

Ashley Creek at Sign of the Maine, near

Vernal, Utah..................... 232

below Trout Creek, near Vernal, Utah. 230 

near Jensen, Utah.................... 233

near Vernal, Utah.................... 231

South Fork, near Vernal, Utah........ 234.

Aspen, Colo., Roaring Fork at.......... 97

Aztec Creek, Utah, discharge measurement .of.......................... 421

Baldwin, Colo., Castle Creek near...... 124

Ohio Creek near...................... 122

Sardine, Colo., East Muddy Creek near.. 139 

Bartlett Dam, Ariz:,' Verde River below. 418 

Battle.Creek near Slater, Colo......... 222

Bayfield, Colo., Los Pinos River near.. 312 

Vallecito Reservoir near............. 311

Beaver Creek (tributary to Green Riv<-_

in Wyoming) near Daniel, Wyo....178-179 

Beaver Creek, East Fork (tributary to

Henrys Fork), near Lonetree, Wyo. 209 

Middle Fork,near Lonetree, Wyo....... 208

West Fork, near Lonetree, Wyo........ 210

Beaver Creek (tributary to San Miguel

River) near Norwood, Colo........ 163

Beaver Creek (tributary to Verde River),

Ariz., discharge measurement of.. 423 

Beaver Dam Wash, Ariz., discharge

measurement of................... 421

Bedrock, Colo., West Paradox Creek near 158 

Berthoud Pass ditch, of Colo., diversion

by...................... ........ 26»27

BickneHl, Utah, Fremont River near..... 289

Big Creek at upper station, near Coilbran, Colo. .,...........'.'........ 107

Big Piney, Wyo., Middle Piney Crnek

near............................. 191

Big Sandy, Wyo., Big Sandy Creek near,. 194 

East Fork near....................... 188

Silver Creek near.................... 189

Big Sandy Creek at Leckie Ranch, near

Big Sandy, Wyo................... 194

Bill Williams River near Alamo, Ariz... 357 

Bill Williams River Basin, Ariz.,

gaging-station records in.......357-358

Black Canyon Creek, "Ariz., discharge

measurement of................... 422

Black Creek above Green Mountain Reservoir, Colo....................... 83

below Black Lake, near Dillon, Colo.. 82 

Black Gore Creek near Minturn, Colo.... 96

Black River, Ariz., discharge measurements of......................... 423

East Fork, discharge measurements of. 423 

West Fork, discharge measurement of.. 423 

Willow Creek diversion from, near

Morenci, Ariz.................... 390

Black & McClesky Canal, Ariz., diversion by....................... 364

Blacks Fork near Green River, Wyo...... 199

near Lyman, Wyo...................... 198

near Millburne, Wyo.................. 196

near Urie, Wyo....................... L97

Blanco, N. Mex., San Juan River near... 294 

Blue Notch Creek, Utah, discharge

measurement of................... 420

Blue River above Green Mountain Reservoir, Colo........................ 71

at Dillon, Colo....................... 70

below Qreen Mountain Reservoir, Colo. 73 

Bluff, Utah, San Juan River near....... 297

Boreas Pass ditch, Colo., diversion by. 26,27 

Boulder, Wyo.; Boulder Creek near...... 187

New Fork River near .............t ..... 183

Boulder Creek (tributary to Blue River)

near Dillon, Colo................ 80

Boulder Creek (tributary to New Fork 

River) below Boulder Lake, near 

Boulder, Wyo.......... ......... 187

Boulger Creek near Fairview, Utah...... 282

Bright Angel Creek near Grand Canyon,

Ariz............................. 349

Brown Canal, Ariz., diversion by....... 368

Brown Duck Creek near Mountain Home,

Utah............................. 257

Brush Creek above cave, near Vernal,

Utah............................. 225

near Jensen, Utah.................... 227

near Vernal, Utah.................... 226

Buckeye Reservoir Outlet near Paradox,

Colo............................. 159

Bull Creek At upper station, near

Molina, Colo...................... 109

Bullfrog Creek, Utah, discharge

measurement of................... 420

Bunkerville Canal, Wev., discharge

measurement of.................... 421

Burntfork, Wyo., Burnt Fork near....... 211

Henrys Fork near..................... 206

Burnt Fork near Burntfork, Wyo......... 211

Busk Ivanhoe tunnel, Colo., diversion

by............................... 26/27

Buzzard Creek near Collbran, Colo...... 106

California drainage canal, Calif., 

return surface flow from, to 

Colorado River.................40,51-52

Calva, Ariz., Gila River at.....'....... 370

Cameo, Colo., Colorado River near...... 22

Plateau Creek near................... 105

Cameron, Ariz., Little Colorado River

near............................. 339

Carter Creek at mouth, near Manila,

Utah............................. 215

near Manila, Utah.................... 214

Casa Grande Canal. See Florence-Casa 

Grande Canal.

Castle Creek near Baldwin, Colo........ 124

Castle Dale, Utah, Cottonwood Creek

near............................. 284

Ferron Creek near...................287-288

San Rafael River near. 

Cataract Creek above Green Mountain 

Reservoir, Colo...............

Cebolla Creek at Powderhorn, Colo.

280

85 

131 

near Lake City, Colo................. 130

Cedar Hill, N. Mex., Animas River near. 317 

Cedaredge, Colo., Currant Creek near... 142

423
424

Cedaredge, Colo., Leroux Creek near..., 

Surface Creek at....................

Surface Creek near...................

Ward Creek near......................

Cement Creek (Gunnlson River Basin)

near Crested Butte, Colo.........

Cement Creek (San Juan River Basin)

near Silverton, Colo.............

Central, Utah, Santa Clara Creek near.,

Charleston, Arlz., San Pedro River at..

Cherry.Creek (01 la, River Basin), Ariz.,

discharge measurement of.........

Cherry Creek (San Juan River Basin)

near Red Mesa, Colo..............

Chevelon Fork below Wildcat Canyon,

near Winslow, Ariz...............

near Winslow, Ariz...................

Chromo, Colo., Little Navajo River at., 

Navajo River near....................

Chrysotile, Ariz., Salt River near.....

Cimarron Creek below Squaw Creek, at

Cimarron, Colo...................

Cisco, Utah, Colorado River near.......

Clark, Colo., Elk River at.............

Clear Creek below Willow Creek, near

Winslow, Ariz....................

near Winslow, Ariz..... .............

Clearwater Canyon, Utah, discharge

measurement of...................

Cliff, N. Hex., Gila River near........

Clifton, Ariz. , Gila River near........

San Francisco River at. ..............

Collbran, Colo., Big Creek near........

Buzzard Creek near...................

Plateau Creek near...................

Colmenero Canal, Ariz., diversion by.., 

Colona, Colo., Uncompahgre River at..., 

Colorado River at Glenwood Springs,

Colo.............................

at Kite, Utah........................

at Hot Sulphur Springs, Colo.

Page 

141 

144 

143 

146

121

319

353

395

422

327

344

345

305

303

404

135

23

219

346

347

419

360

365

387

107

106

104

364

147

21 

24 

19 

at Imperial Dam, Ariz.-Calif......... 38,40

at Lees Ferry, Ariz.................. 3, 25

at Needles., Calif.................... 32

at Yuma, Ariz........................ 39,40

below Davis Dam, Ariz.-Nev........... 31

below Hoover Dam, Ariz.-Nev.......... 30

below Parker Dam, Ariz.-Calif........ 37

below 'Shadow Mountain Dam, Colo...... 17

diversion from....................... 26

near Cameo, Colo..................... 22

near Cisco, Utah..................... 23

near Dotsero, Colo................... 20

near Granby, Colo.................... 18

near Grand Canyon, Ariz.............. 28

near Grand Lake, Colo................ 14

ne-j. Topock, Ariz. ................... 33-34

return surface flows to.............. 40,51

Colorado River and Pilot Knob wasteway

at Rockwood gate, Calif.......... 40,41

Colorado River aqueduct, diversion to.. 37 

Colorado River Indian Reservation, diversion for, near Parker, Ariz... 38 

Colorado River main stem, Colo.-UtahAriz.-Nev.-Calif., gaging-station 

records on....................... 14-41

Columbine ditch, Colo., diversion by... 26,27 

Colvin-Jones Canal, Ari2., diversion by 368 

Computations, accuracy of results of... 5-6 

Concho Creek, Ariz., discharge measurement of.......................... 421

Contents, definition of................ 2

Continental Divide ditch, Colo., divers ion by....................... 26

Control, definition of................. 1

Coolidge Dam, Ariz., Gila River below.372-373 

San Carlos. Reservoir at.............. 371

Cooper wasteway, Ariz., return surface

flows from, to Colorado River..40,51-52 

Cooperation, record of................. 12

Cora, Wyo., New Fork River near........ 182

Cornville, Ariz., Oak-Creek near....... 413

Cottonwood Canyon Creek, Utah, discharge

measurement of................... 420

Cottonwood Creek (.tributary to Green

River) near Daniel, Wyo.......... 181

Cottonwood Creek (tributary to Plateau 

Creek) at upper station, near 

Molina, Colo..................... 108

Cottonwood Creek (tributary to San

Miguel River) near Nucla, Colo... 165 

Cottonwood Creek (tributary to San

Rafael River) near Castle Dale,

Utah............................. 284

near Orangeville, Utah. .............. 283

Crawford, Colo., Iron Creek near....... 138

Smith Fork near...................... 137

Crested Butte, Colo., Cement. Creek near 121 

East River near...................... 118

Slate River near..................... 120

Crystal Creek near Maher, Colo......... 136

Crysta.1 River near Redstone, Colo......3, 101

Curecarati Creek near Sapinero, Colo.... 134

Currant Creek (Green River Basin) below 

Red Ledge Hollow, near Fruitland, 

Utah............................. 250

near Fruitland, Utah............... . 251

Currant Creek (Gunnison River Basin)

near Cedaredge, Colo............. 142

Curtis Canal, Ariz., diversion by...... 368

Dallas Creek, East Fork, near Ridgway,

Colo.. ........................... 150

Daniel, Wyo., Beaver Creek near.......178-179

Cottonwood Creek near............ ... 181

Green River near..................... 172

Horse Creek near..................... 180

Dark Canyon Creek, Utah, discharge

measurement of................... 419

Data, accuracy of...................... 5-6

explanation of....................... 2-5

Davis Dam, Ariz.-Nev., Colorado River

below. ..........'................. 31

Deep Creek near Paradox, Colo........... 170

Delta, Colo., Roubideau Creek near..... 151

Uncompahgre River at................. 148

Diamondville, Wyo., Hams Fork at....... 204

Dillon, Colo., Black Creek near........ 82

Blue River at........................ 70

Boulder Creek near................... 80

Rock "Creek near...................... 79

Slate Creek near...................... 81

Snake River at....................... 74

Straight Creek near.................. 77

Tenmile Creek at...................... 76

Willow Creek near.................... 78

Dirty Devil River, Utah, discharge

measurement of..................... 420

Dixon, Wyo., Little Snake River near... 220 

Dodge-Nevada Canal, Ariz., diversion by 368 

Dolores, Colo., Dolores River at....... 153

Dolores River at Dolores, Colo......... 153

at Gateway, Colo..................... 155

near McPhee, Colo.................... 154

Dolores River Basin, Colo., gagingstation records in..............153-171

Dome, Ariz., Gila River near....... 40,379

Dotsero, Colo., Colorado River near.i.. 20 

Douglas, Ariz., Whitewater Draw near... 418 

Doyleville, Colo., Tomichi Creek near.. 126 

Dry Fork above sinks, near Dry Fork,

Utah............................. 235

East.fork of, near Dry Fork, Utah.... 237

North Fork of, near Dry Fork, Utah... 236 

Duchesne, Utah, Duchesne River at....... 241

Strawberry River at.................. 249

Duchesne River at Duchesne, Utah....... 241

at Myton, Utah....................... 242

at Provo River Trail, near Hanna,.

Utah............................. 238

'discharge measurements of............ 419

near Hanna, Utah... ; ................. 239

near Randlett, Utah.................. 243

near Tabiona, Utah................... 240

West Fork, near Hanna, Utah.......... 244

Duncan Canal, AMz., diversion by...... 364

Dune an Valley, if. Mex.-Ari3., diversions from Gila River in...... 364

Durango, Colo., Ahimas River at........ 316

Florida River near................... 323

Lightner Creek near.................. 322

Eagle Creek (.tributary to Gila River)

above pumping plant, near Morenol, 

Ariz....,........'................ 389

near Double Circle Ranch, near

Morenci, Ariz.................... 388

Eagle River at Redcliff, Colo.......... 89
INDEX 425

Eagle River below Gypsum, Colo.........

East Fork near Big Sandy, Wyo..........

East Inlet near Grand Lake, Colo.......

East Main Canal, Ariz., return surface 

flows from.....................40,

East Mancos River near Mancos, Colo....

East Muddy Creek near Sardine, Colo....

East River at Almont, Colo..............

near Crested Butte, Colo.............

Eckert, Colo., Surface Creek at........

Edith, Colo. , Navajo River at. .........

Eleven-mile wasteway, Ariz., return

surface flows from, to Colorado 

River... ...................... .40

Elk River at Clark, Colo...............

Elkhorn, Wyo., Little Sandy Creek near.

Elliott Creek feeder canal to Green

Mountain Reservoir, Colo .........

Enterprise Canal, Ariz., monthly divers ion by.......................

Escalante River, Utah, discharge

measurement of...................

near Escalante, Utah.................

Estes Park, Colo., Alva B. Adams tunnel 

near........................... .

Eureka ditch, Colo., diversion by......

Ewing ditch, Colo. , diversion by........

Fairview, .Utah, Boulger Creek near.....

Fall Creek (Dolores River Basin) near 

Pall Creek, Colo.................

Fall Creek (Green River Basin) near

Pinedale, Wyo....................

Parmington, N. Hex., Animas River at... 

La Plata River near..................

San Juan River at.

Page

90

188

54

51-52 

329 

139 

119 

118 

145 

304

51-52 

219 

195

379

420

290

16

26,27

26,27

282

162

186 

318 

326 

295 

Perron Creek near Castle Dale, Utah...287-288

(upper station) near Perron, Utah...285-286 

Floods, special reports on............. 11

Florence, Ariz., Gila River near....... 376

Florence-Casa Grande Canal, diversions

to............................... 376

Florida River near Durango, Colo....... 323

Fontenelle, Wyo., Fontenelle Creek near 193

Green River near.................... 173

Fontenelle Creek near Fontenelle, Wyo.. 193 

Fort Duchesne, Utah, Uinta River at.... 261

Fort Thomas Canal, Ariz. , ^diversion by. 368 

Fourness Canal, Ariz., diversion by.... 368

Fraser, Colo., Ranch Creek near..:..... 61

St. Louis Creek near..........:...... 60

Fraser River at Granby, Colo.-.......... 58

near Winter. Park, Colo............... 57

Fremont Pass ditch, Colo., diversion by 26,27 

Fremont River near Bicknell, Utah...... 289

Frisco, Colo., Tenmile Creek at........ 75

Frontier , Wyo., Hams Fork near......... 203

Fruitland, Utah,' Currant Creek near.. .250,251

Water Hollow near.................... 252

Fryingpan Creek at Norrie, Colo........ 99

North Fork, near Norrie, Colo........ 100

Fuohs ditch, Colo., diversion by........ 26,27

Gateview, Colo., Lake Fork at.......... 133

Gateway, Colo., Dolores River at....... 155

Taylor Creek near'. ................... 168

Geyser Creek near Paradox, Colo........ 171

Gila Gravity Main Canal at Imperial Dam,

Ariz.-Calif...................... 40,42

Gila River at Ashurst-Hayden Dam, near

Florence, Ariz................... 376

at Galva, Ariz....................... 370

at Kelvin, Ariz...................... 375

at New Mexico-Arizona State Una,

near Virden, N. Mex.............. 363

at Safford, Ariz..................... 369

at Winkelman, Ariz................... 374

below Blue Creek, near Virden,- N. Mex. 362 

below Coolidge Dam, Ariz............372-373

below Gillespie Dam, Ariz...........378-379

discharge measurement of............. 421

diversions from, in Duncan Valley,

N. Mex.-Ariz..................... 364

in Safford Valley. Ariz............ 368

near Cliff, N. Mex................... 360

hear Clifton, Ariz................... 365

near Dome, Ariz......................40,379

near Gila, N. Mex.................... 359

Page

Gila River near Laveen, Ariz........... 377

near Red Rock, N. Mex................ 361

near Solomonsville, Ariz............ 366-367

See also Gila River and canals.

Gila River Basin, N. Mex.-Ariz., discharge measurements in..........421-422

gaging-station records in...........359-417

Gillespie Canal, Ariz., monthly diversion by....................... 379

Gillespie Dam, Ariz., Gila River

below...........................378-379

Glenwood, N. Mex., San Francisco River

near............................. 386

Glenwood Springs, Colo., Colorado River

at... ............................ 21

Roaring Fork at...................... 98

Gold Park, Colo., Homestake Creek at..'. 92

Gooseberry Creek near Scofield, Utah... ,277

Gore Creek at upper station, near

Minturn, Colo..................... 94

near Minturn, Colo................... 95

Graham Canal, Ariz., diversion by.... . 368

Granby, Colo., Colorado River near..... 18

Fraser River at...................... 58

Willow Creek near.................... 56

Grand Canyon, Ariz., Bright Angel Creek

near............................. 349

Colorado River near.................. 28

Grand Falls, Ariz., Little Colorado

River at.......................... 338

Grand Junction, Colo., Gunnison River

near....................... ..... 117

Grand Lake; Colo., Colorado River near. 14 

East Inlet near...................... 54

North Inlet at....................... 53

Shadow Mountain Reservoir near....... 15

Grand River ditch, Colo., diversion by. 26,27

Grand Valley, Colo., Parachute-Creek at 103 

Parachute Creek near................. 102

Green Mountain Reservoir, Colo., Black

Creek above...................... 83

Blue River above..................... 71

Blue River below..................... 73

Cataract Creek above................. 85

Elliott Creek feeder canal to........ 86

near Kremmling, Colo................. 72

Otter Creek above.................... 34

Green River, Utah., Green River at...... 177

San Rafael River near................ 281

Green River, Wyo., Blacks Fork near.... 199

Green River at Greert River, Utah....... 177

at Warren Bridge, near Daniel, Wyo,.. 172 

near Fontenelle, Wyo.................. 173

near Jensen, Utah.................... 175

near Linwood , Utah................... 174

near Ouray, Utah..................... 176

Green River Basin, Wyo.-Utah-Colo.,

discharge measurements in........ 419

gaging-station records in...........172-288

Gunnison,. Colo., Gunnison River near... 114 

Ohio Creek near...................... 123

Tomichi Creek at..................... 128

Gunnison River at lola, Colo........... 115

below Gunnison tunnel, Colo.......... 116

near Grand Junction, Colo............ 117

near Gunnison, Colo.................. 114

North Fork, near Somerset, Colo...... 140

tributaries......................53-110,419

discharge measurements of.......... 420

Gunnison River Basin, Colo., gagingstation records in../........... .111-152

Gunnison tunnel, Colo., Gunnison River

below............................ 116

diversion through.................... 116

Gypsum, Colo., Eagle River below....... 90

Halls Creek, Ariz., discharge measurements of......................... 420

Hams Fork at Diamondville, Wyo......... 204

near Frontier, Wyo................... 203

Hanna, Utah, Duchesne River near......238,239

West Fork D.uchesne River near........ 244

Wolf Creek above Rhodes Canyon, near. 245 

Hansen Creek, Utah, discharge measurement of.......................... 420

Hassayampa River at Box dam site, near

Wickenburg, Ariz................. 417

Havasu Lake near Parker Dam, Ariz.-

Calif............................ 35-36
426 INDEX

Page 

Heiner, Utah, Price River near......... 275

Henrys Fork at Linwood, Utah........... 207

near Burntfork, Wyo.................. 206

near Lonetree, Wyo................... 205

Hermosa Creek near Hermosa, Colo....... 321

Hesperus, Colo., La Plata River at..... 324

Kite, Utah, Colorado River at.......... 24

Hole-in-the Rock Creek, Utah, discharge

'measurement of................... 420

Homestake Creek at Gold Park, Colo..... 92

near Redcliff, Colo.................. 93

Hoover Liam, Ariz.-Nev., Colorado River

below............................ 30

Lake Mead at......'................... 29

Horse Creek near Daniel, Wyo........... 180

Horsefly Creek near Sams, Colo......... 164

Horseshoe Dam, Ari'z., Reservoir system

on Verde River at and below...... 411

Verde River above.................... 410

Hot Sulphur Spring, Colo., Colorado

River at........'................. 19

Howardsville, Colo., Animas River at... 314 

Hunt, Ariz., Little Colorado River

near.............................335,336

Huntington Creek near Huntington, Utah. 279

Ignacio, Colo., Los Pinos River at.....

Imperial Dam, Ariz.-Calif., AilAmerican Canal near..............

Colorado River at....................

diversions and return flows at and

below..........................42,

Gila Gravity Main Canal at...........

Indian Creek, Utah, discharge measurement of..........................

lola, Colo., Gunnison River at.........

Iron Creek near Crawford, Colo.........

Ironton, Colo., Red Mountain Creek near

Jensen, Utah, Ashley Creek near........

Brush Creek near.....................

Green River near.....................

Jones Canal. See Colvln-Jones Canal. 

Jones Pass tunnel, Colo., diversion by.

Kahnah Creek near Whltewater, Colo.....

Kanab Creek, Utah, discharge measurements of.........................

Kane Creek, Utah, discharge measurement of..........................

Kelvin, Ariz., Gila River at...........

Keyser Creek near Leal, Colo...........

Kremmling, Colo., Green Mountain Reservoir near........................

La Plata River at Colorado-New Mexico 

State line.......................

at Hesperus, Colo....................

near Farmington, N. Mex..............

La Sal, Utah, Twomile Creek near.......

Labarge Creek near Viola, Wyo..........

Laguna Dam (Colorado River), Ariz.-

Calif., diversions at.......'...:.

North Gila Valley Canal at...........

Lake Canyon Creek, Utah, discharge

measurement of...................

Lake City, Colo., Cebolla Creek near... 

Lake Fork (Green River Basin) above 

Moon Lake, near Mountain Home, 

Utah.............................

below Moon Lake, near Mountain Home 

Utah.............................

near Upalco, Utah.....................

Lake Fork (Gunnison River Basin) at

Gateview, Colo...................

Lake Mead at Hoover Dam, Ariz.-Nev.....

Lake Pleasant at Lake Pleasant Dam,

Ariz.............................

Lake Pleasant Dam, Ariz., Agua 'Fria

River at.........................

Lake Pleasant at.....................

Larkspur ditch, Colo., diversion by....

 Laskey Gulch, Colo., discharge measurements .of.........................

Last Chance Creek, Utah, discharge

measurement of...................

Laveen, Ariz., Gila River near.........

Santa Cruz River near................

313

40,43

38,40

,51-52 

40,42

419

115

138

149

233

227

175

26,27

152

421

420

375

68

72

325

324

326

156

192

40

49

420

130

253

255

256

133

29

416

415

416

26,27

419

420

377

399

Leal, Colo., Keyser Creek near......... 68

Williams River near.................. 64

Lees Ferry, Ariz., Colorado River at... 3, 25 

Paria River at....................... 331

Leroux Creek near Cedaredge, Colo...... 141

Lightner Creek near Durango, Colo...... 322

Lily, Colo., Little Snake River near... 221 

Linwood, Utah, Green Elver near........ 174

Henrys Fork at....................... 207

Little Brush Creek near Vernal, Utah... 229 

Little Colorado River above Lyman Reservoir, near St. Johns, Ariz.......' 332

above Zuni River, near Hunt, Ariz.... 335

at Grand Falls , Ariz.................. 338

at Woodruff, Ariz.................... 337

below Lyman Reservoir, near St. Johns,

Ariz............................ 334

discharge measurements of............ 421

near Cameron, Ariz................... 339

near Hunt, Ariz...................... 336

Little Colorado River Basin, Ariz.-

N. Mex., discharge measurements 

in............................... 421

gaging-statlon records in...........332-348

Little Navajo River at Chromo, Colo.... 305

Little Sandy Creek near Elkhorn, Wyo... 195 

Little Snake River near Dlxon, Wyo..... 220

near Lily, Colo...................... 221

Littlefield, Ariz., Virgin River at.... 351

Littlefield Canal, Ariz., discharge

measurement of................... 421

Lochiel, Ariz., Santa Cruz River near.. 396 

Lonetree, Wyo., East Fork Beaver Creek

near............................. 209

Henrys Fork near..................... 205

Middle Fork Beaver Creek near........ 208

West Fork Beaver Creek near.......... 210

Los Plnos River at Ignacio, Colo^_...... 313

below Snowslide Canyon, near Wemlnuche

Pass, Colo....................... 310

near Bayfield, Colo.................. 312

Lyman, Wyo., Blacks'Fork near..,......'. 198

Lyman Reservoir near St. Johns, Ariz... 333

McNary, Ariz., White-River near......... 408

McPhee, Colo., Dolores River near...... 154

Maher, Colo., Crystal Creek near....... 136

Main drain, Ariz., return surface flows

from.. .................... .......40,51-52

Mancos, Colo., Eas.t Mancos River near. 329 

Middle Mancos River near............ 330

West Mancos River near.............. 328

Manila, Utah, Carter Creek near.......214,215

Red Lake Outlet near................ 216

Sheep Creek near................. ...212,213

Mason, Wyo., North Piney Creek near.... 190

Maybell, Colo.-, Yampa River near....... 218

Mayer, Ariz., Agua Fria River near..... 414

Meadow Creek near Tabernash, Colo...... 63

Meadow Valley Wash near Panaca, Nev.... 356

Meeker, Colo., White River near........ 265

Mesa Creek near Mesa, Colo.............. 110

Middle Mancos River near Mancos, Colo.. 330 

Middle Piney Creek below South Fork,

near Big Piney, Wyo.............. 191

Millburne, Wyo., Blacks Fork -near...... 196

Mineral Creek (Gila River Basin), Ariz.,

discharge measurements of........ 422

Mineral Creek (San Juan River Basin)

near Silverton, Colo..........;.. 320

Minnie Maud Creek at Nutter Ranch, near

Myton, Utah.....................270-271

Minturn, Colo., Black Gore Creek near.. 96 

Gore Creek near ....................... 94J 9£>

Piney River near..................... 87

Moddle Canal at New Mexico-Arizona

State line, near Virden, N. Mex.. 384 

diversion by......................... 364

near Virden, N. Mex.................. 383

Moenkopi Wash near Tuba, Ariz.......... 348

Moffat tunnel, Colo., diversion by...26,57,58 

Moid. Creek, Utah, discharge measurement of.. ( ....................... 420

Molina, Colo., Bull Creek near......... 109

Cottonwood Creek near................ 108

Monarch Lake Outlet, Calif., Arapho

Creek at......................... 55

Montezuma Canal, Ariz., diversion by... 368
INDEX 427

Page 

Montezuma Well outflow, Ariz., discharge

measurement of................... 422

Moon Lake Reservoir near Mountain Home,

Utah............................. 254

Morenoi, Ariz., Eagle Creek near......388,389

Willow Creek near...................391,392

Willow Creek diversion from Black

River, near...................... 390

Mountain Home, Utah, Brown Duck Creek

near.............................. 257

Lake Fork near......................253,255

Moon Lake Reservoir near............. 254

Rock Creek near...................... 246

Mountainview, Wyo., Smith Fork at...... 201

Muddy River, Nev., discharge measurements of......................... 421

near Overton, Nev.................... 355

Myton, Utah, Duchesne River at......... 242

Minnie Maud Greek near..............270-271

Naturita, Colo., San Miguel River at... 161 

Naturita Creek near Norwood, Colo...... 166

Navajo Credk, Utah, discharge measurement of.......................... 420

Navajo Creek (2.5 miles downstream from 

Utah-Arizona State line), discharge measurement of............ 421

Navajo River at Banded Peak Ranch, near

Chromo, Colo..................... 303

at Edith, Colo....................... 304

Needles, Calif., Colorado River at..... 32

Neola, Utah, Uinta River near.........259-260

Nevada Canal. See Dodge-Nevada Canal. 

New Fork River Eelow New Fork Lake,

near Cora, Wyo................'... 182

near Boulder, Wyo.................... 183

Nigger Bill Creek, Ariz., discharge

measurement of................... 410

Nogales, Ariz., Santa Cruz River near.. 397 

Norrie, Colo., Fryingpan Creek at...... 99

North For.K Tryingpan Creek near...... 100

North Gila Valley Canal at Laguna Dam,

Ariz.-Calif...................... 49

diversion by, at Laguna Dam, Ariz.-

Calif............................ 40,49

North Inlet at Grand Lake, Colo........ 53

North Piney Creek near Mason, Wyo...... 190

Norwood, Colo., Beaver Creek near...... 163

Naturita Creek near.................. 166

Nucla, Colo., Cotfconwood Creek near.... 165

Tabeguache Creek near................ 167

Oak Creek near Cornville, Ariz......... 412

Oaks Park Canal near Vernal, Utah.;..... 228

Ohio, Colo., Quartz Creek near.......

Ohio Creek near Baldwin, Colo.......... 122

near Gunnison, Colo.................. 123

Onion Creek, Ariz., discharge measurement of-........'.................... 410

Orangeville, Utah, Cottonwood Creek

near... . .^......................... 283

Otter Creek above Green Mountain

Reservoir, Colo.................. 84

Ouray, Utah, Green River near.......... 176

Willow 'Creek near...................267-269

Overton, Nev., Muddy River near........ 355

Pagosa Springs, Colo., Piedra River

. near............................. 306

Rio Blanco near...................... 301

Rito Blanco near..................... 302

San Juan River at.................... 292

San Juan River near.................. 291

Turkey Creek near.................... 300

Weminuche Creek near................. 309

West Pork San Juan River near.......298,299

Williams Creek near.................. 308

Panaca, Nev., Meadow Valley Wash near.. 356

Parachute Creek at Grand Valley, Colo.. 103

near Grand Valley, Colo.............. 102

Paradise Creek near Whiterocks, Utah... 264 

Paradox, Colo., Buckeye Reservoir Outlet near......................... 159

Deep Creek near....................... 170

Geyser Creek ne'ar.................... 171

West Paradox Creek" near.............. 157

Paria River at Lees Ferry, Ariz........ 331

Parker, Ariz., diversion for Colorado

River Indian Reservation near.... 38

Page 

Parker Dam, Ariz.-Calif., Colorado

River below...................... 37

Havasu Lake near..................... 35-36

Parlin, Colo., Tomichi 'Creek at........ 127

Parshall, Colo., Williams Fork Reservoir ............................. 66

Williams River near.................. 65

Patagonia, Ariz., Sonoita Creek near... 400 

Peridot, Ariz., San Carlos River near.. 394 

Perry Canal, Ariz., diversion by....... 404

Piedra Pass ditch, Colo., diversion by. 26,27' 

Piedra River at Bridge ranger station,

near Pagosa Springs, Colo........ 306

near Piedra, Colo.................... 307

Pilot Knob wasteway, Calif., AllAmerican Canal above............. 40,44

Colorado River and, at Rockwood gate,

Calif............................ 40,41

near Pilot Knob, Calif............... 40,48

Pine Creek at Pinedale, Wyo............ -184

Pine River. See Los Pinos River.

Pinedale, Wyo77~Fall Creek near........ 186

Pine Creek at........................ 184

Pole Creek near...................... 185

Piney River below Piney. Lake, near

Minturn, Colo.................... 87

near State Bridge, Colo.............. 88

Placerville, Colo., San Miguel River

near............................. 160

Plateau Creek near Cameo, Colo......... 105

near Collbran, Colo.................. 104

Point of Pines Creek, Ariz., discharge

measurement of................... 414

Pole Creek below Little Half Moon Lake

near Pinedale, Wyo............... 185

Pole Creek power canal, Utah, discharge

measurements of.................. 419

Powderhorn, Colo., Cebolla Creek at.... 131

Price Creek, Utah, discharge measurement of.......................... 412

Price River above Scofield Reservoir,

near Scofield, Utah.............. 272

at Woodside, Utah..................... 276

near Heiner, Utah..................... 275

near Scofield, Utah.................. 274

Publications qri stream flow by Geological Survey.......................6-9,11

by State agencies..................... 10-11

Puerco River, Ariz., discharge measurements of......................... 421

near Adamana, Ariz................... 343

Quartz Creek near Ohio, Colo. 129

129 Raber-Lohr ditch, Colo., diversion'by.. 26,27 

Ranch Creek near Fra'ser, Colo.......... 61

near Tabernash, Colo................. 62

Randlett, Utah," Duchesne River near.... 243

Range Creek, Utah, discharge measurement of.......................... 412

Red Canyon, Utah, seeps at, discharge

measurement of................'... 420

Red Creek, Utah, discharge measurements of.......................... 411

Red Lake Outlet near Manila, Utah...... 216

Red Mesa, Colo., Cherry Creek near..... 318

Red Mountain Creek near Ironton., Colo.. 149 

Red Rock, N. Mex., Gila River near..... 361

Redcliff, Colo., Eagle River at........ 89

Homestake Creek near................. 93

Turkey Creek at...................... 91

Redstone, Colo., Crystal River near....3, 101

Ridgway, Colo., East Fork Dallas Creek

near............................. 150

Rlllito Creek near Tucson, Ariz........ 402

Rio Blanco near Pagosa Springs, Colo... 301 

Rito Blanco near Pagosa Springs, Colo.. 302 

Roaring Pork at Aspen, Colo............ 97

at Glenwood Springs, Colo............ 98

Robertson, Wyo., East Fork of Smith

Fork near........................ 200

West Fork of Smith'Fork near......... 202

Roc Creek near Uranium, Colo........... 169

Rock Creek (tributary to Bine River),

near Dillon, Colo................ 79

Rock Creek (tributary to Colorado

River at mile 55.6 above Lees

Ferry), Ariz., discharge rreasurement of....../................... 410
428 INDEX

Rock Creek (tributary to Duchesne 

River), Utah, discharge

Page

measurement of................... 419 Shumway, Ariz., Silver Creek near.

near Mountain Home, Utah............. 246 Silver Creek (tributary to East Pork)

Rock Creek (tributary to Green River)

discharge measurement of......... 412 Silvpr Creek (tributary to Little

Rockwood gate, Calif., Colorado River

and Pilot Knob wasteway at....... 40,41

Roosevelt, Arlz., Salt River near...... 405 Silver Creek (tributary to Little Tonto Creek near.................... '"" '" "' ' -..--.*----.,--* 

Roosevelt Dam, Ariz., Reservoir system 

on Salt River at and.beloW......

Rosa, N. Mex., San Juan River at......

Roubideau Creek at mouth, near Delta, 

' Colo............................

Runoff in inches, definition of.......

409 "Colorado River) near Woodruff, 

Ariz...........................

406 Silverton, Colo., Cement Creek near....

293

151

Sabino Creek near Tucson, Ariz......... 403

Safford, Ariz., Gila River at.......... 369

Safford Valley, Arlz., diversions from

Gila River in.................... 368

St. Johns, Ariz., Little Colorado River

near.................... 332,334

Lyman Reservoir near................. 333

St. Louis Creek near Fraser, Colo...... 60

Salt River below Stewart Mountain Dam,

Ariz............................. 407

near Chrysotile, Ariz................ 404

near Roosevelt, Ariz................. 405

reservoir system on, at and below

Roosevelt Dam, Ariz.............. 406

Sams , Colo., Horsefly Creek near....... 164

San Carlos Reservoir at Coolidge Dam,

Ariz.............................. 371

San Carlos River near Peridot, Ariz.... 394

San Francisco River at Clifton, Ariz... 387 

near Glenwood, N. Mex................ 386

San Jose Canal, Arlz., diversion by.... 368

San Juan River at Famftngton, N.. Mex... 295 

at Pagosa Springs, Colo.............. 292

at Rosa, N. Mex...................... 293

at Ship Rock, N. Mex................. 296

discharge measurement of............. 420

near Blanco, N. Mex.................. 294

near Bluff, Utah..................... 297

near Pagosa Springs, Colo............ 291

West Fork, above Borns Lake, near

Pagosa Springs, Colo............. 298

near Pagosa Springs, Colo.......... 299

San Juan River Basin, Colo.-N. Mex

Utah, gaging-station records in.291-330

1 Slate Creek near Dlllon, Colo..........

Slate River near Crested Butte, Colo..,

San Miguel River at Naturita, Colo....

near Placerville, Colo...........'....

San Pedro River at Charleston, Ariz....

discharge measurements of............

San Rafael River, Utah, near Castle

Dale, Utah.......................

near Green River, Utah...............

San Simon Creek near Solomonsville,

Ariz.............................

Santa Clara River above Winsor Dam,

near Santa Clara, Utah...........

near Central, Utah...................

Santa Cruz River at Tucson, Ariz........

near Laveen, Ariz....................

near Lochiel, Ariz...................

near Nogales, Ariz...................

Santa Maria River near Alamo, Ariz.....

Sapinero, Colo., Curecanti Creek near..

Bapinero Creek at.

161

160

395

421

280

281

393

354

353

398

399

396

397 

358 

134 

132 

Sapinero Creek at Sapinero, Colo....... 132

Sargents, Colo., Tomichi Creek at...... 125

Savery Creek near Savery, Wyo.......... 224

Scofield, Utah, Gooseberry Creek near.. 277 

Price River near....................272,274

Scofield Reservoir near.............. 273

Scofield Reservoir near Scofield, Utah. 273 

Second-feet per square mile, definition

of............................... 1

Second-foot, definition of............. 1

Second-foot-day, definition of......... 1

Sexton Canal, Ariz., diversion by...... 364

Shadow Mountain Dam, Colo., Colorado

River below...................... 17

Shadow Mountain Reservoir near Grand

Lake, Colo........................ 15

Sheep Creek at mouth, near Manila,

Utah............................. 213

near Manila, Utah.................... 212

Ship Rock, N. Mox., San Juan River at.. 

Show Low Creek near Show Low, Ariz.....

near Big Sandy, Wyo.

Colorado River) near Shumway, 

Ariz.

Mineral Creek near. 

Simpson Creek,-Colo., discharge

measurements of.

Page 

296 

342 

340

189

340

341

319

320

419

81

120

Slater, Colo., Battle Creek near....... 222

Slater Fork near. 

Slater Fork near Slater, Colo.

223

223

Smith Fork (tributary to Blacks Fork)

at Mountainview, Wyo............. 201

East Pork, near Robertson, Wyo. 200

West Fork, near Robertson, Wyo....... 202

Smith Fork (/tributary to Colorado

River), Utah, discharge measurement of..........................

Smith Fork (tributary to Gunnison River)

near Crawford, Colo.

420

137

368

74

247 

Strawberry River near................ 248

Soldier Summit, Utah, White River near. 278 

Solomonsville, Ariz., Gila River near.366-367

Smithvllle Canal,. Ariz., diversion by.. 

Snake River at Dillon, Colo.............

Soldier Springs, Utah, Strawberry

Reservoir near.

San Simon Creek near. 393 

Somerset, Colo., North Fork Gunnison

River near....................... 140

Sonoita Creek near Patagonia, Ariz..... 400

Springdale, Utah, North Fork Virgin

River near....................... 352

Squaw Pass ditch, Colo., diversion by... 26,27

1 

88

Stage-discharge relation, definition of 

State Bridge; Colo., Piney River near.. 

Steamboat Springs, Colo., Yampa River

at. 217

407

77

Stewart Mountain Dam, Ariz., Salt River 

below............................

Straight Creek near Dillon, Colo.......

Strawberry Reservoir near Soldier

Springs, Utah.................... 247

Strawberry River at Duchesne, Utah..... 249 

near Soldier Springs, Utah........... 248

Strawberry tunnel, Utah, diversion by., 

Sulphur Spring Valley, Arlz., gagingstation record in.

27

418

Sunset Canal above New Mexico-Arizona

State line, near Virden, N. Mex.. 381

diversion by......................... 364 " - 380

382 

Surface Creek at Cedaredge, Colo....... 144

at Eckert, Colo

near Virden, N. Mex. 

Sunset Canal wasteway near Virden,

N. Mex.

145

near Cedaredge, Colo................. 143

Tabeguache Creek near Nucla, Colo....... 167

Tabernash, Colo., Meadow Creek near....

Ranch Creek -near.

Tabiona, Utah, Duchesne River near.....

63

62

240

Tabor ditch, Colo., diversion by....... 26,27

Tacoma, Colo., Animas River above...... 315

Tarbcll ditch, Colo., diversion by..... 26,27

Taylor Creek near Gateway, Colo........ 168

Taylor Park Reservoir at Taylor Park,

Colo.

Taylor River below................... 112

Taylor River at Almont, Colo........... 113

below Taylor Park Reservoir, Colo.... 112

inmile Creek at Dillon, Colo.......... 76

at Frisco, Colo...................... 75

North Fork, Colo., discharge measurements of......................... 419

Terms, definition of................... 1-2

Tidwell Canal, Ariz., diversion by..... 368

Tomichi Creek at Gunnison, Colo........ 128

at Parlin, Colo...................... 127

at Sargents, Golo.................... 125
INDEX 429

Tomlchl Creek near Doylevllle, Colo.... 

Tonto Creek above Gun Creek, near

Roosevelt, Ariz..................

Topock, Arlz., Colorado River near.....

Trachyte Creek, Utah, discharge measurement of..........................

Treasure Pass ditch, Colo., diversion

by...............................

Troublesome Creek near Troublesome

Colo.............................

Tuba, ArIz., Moenkopl Wash near........

Tueson, Arlz., Rllllto Creek near......

Sablno Creek near....................

Santa Cruz River at..................

Tueson Arroyo at Vine Avenue.........

Tueson Arroyo at Vine Avenue, Tueson,

Arlz.............................

Turkey Creek (tributary to Eagle River)

at Redcllff, Colo................

Turkey Creek (tributary to San Juan

River) near Pagosa Springs, Colo. 

Twenty-one mile wasteway, Arlz., return

surface flows from, to Colorado

River..........................40.

Twin Lakes tunnel, Colo.^ diversion

by...............................

Twomlle Creek near La Sal, Utah........

Ulnta River above Clover Creek, near

Neola, Utah......................

at Fort Duchesne, Utah...............

near Neola, Utah.....................

Uncompahgre River at Colona, Colo......

at Delta, Colo.......................

Union Canal, Ariz., diversion by.......

Upalco, Utah, Lake Fork near...........

Uranium, Colo., Roc Creek near.........

Urie, Wyo., Blacks Fork near...........

Page 

126

409 

33-34

420

26,27

69

348

402

403

398

401

401

91

300

51-52

26,27

156

259

261

260

147

148

368

256

169

197

Valleclto Reservoir near Bayfield, Colo. 311 

Valley Canal, N. Mex., diversion by.... 364

near Vlrden, N. Mex.................. 385

Vasquez Creek near-Winter Park, Colo... 59 

Verde River below Bartlett Dam, Ariz... 412 

below Tangle Creek, above Horseshoe

Dam, Ariz........................ 410

reservoir system on, at and below

Horseshoe Dam, Ariz.............. 411

Vernal, Utah, Ashley Creek near...230,231,232 

Brush Creek near....................225,226

Little Brush Creek near.............. 229

Oaks Park Canal near................. 228

South Fork Ashley Creek near......... 234

Viola, Wyo., Labarge Creek near....:... 192

Virden, N. Mex., Gila River near......362,363

Moddle Canal near...................383,384

Sunset Canal near................... 380,381

Sunset Canal wasteway near........... 382

Valley Canal near.................... 385

Virgin River at Littlefield, Ariz...... 351

at Virgin, Utah....................... 350

discharge measurements in............ 421

North Fork, near Springdale, Utah.... 352

Virgin River Basin, Utah-Ariz., discharge measurements in........... 421

gaging-station records in...........350-356

Wahweap Creek, Utah, discharge measurement of.................. ....... 421

Ward Creek below Kiser Creek, near

Cedaredge, Colo.................. 146

Warm Creek, Utah, discharge measurement of.......................... 421

Warm Springs Creek, Utah, discharge

measurement of................... 420

Warm Sulphur Springs, Utah, discharge

measurement of................... 420

Water Hollow near Fruitland, Utah...... 252

Watson, Utah, White River near......... 266

Weminuche Creek near Bridge ranger 

station, near Pagosa Springs, 

Colo. ............>................ 309

Weminuche Pass, Colo., Los Pinos River

near............................. 310

West Canyon Creek, Utah, discharge

measurement of................... 420

West Mancos River near Mancos, Colo..,. 328

West Paradox Creek near Bedroqk, Colo.. 1S8

near Paradox, Colo................... 157

White River (tributary to Green River),

near Meeker, Colo................ 265

near Watson, Utah.................... 266

White River (tributary to Price River]

near Soldier Summit, Utah........ 278

White River (tributary to Salt River)

near McNary, Ariz................ 408

Whiterocks, Utah, Paradise Creek near.. 264 

near Whiterocks, Utah................ 263

Whiterocks River near...............282.263

Whiterocks River above Paradise Creek,

near Whiterocks, Utah............ 262

near Whiterocks, Utah................ 263

Whitewater, Colo., Kahnah Creek near... 152 

Whitewater Draw near Douglas, Arlz..... 418

Wickenburg, Ariz., Hassayampa River

near............................. 417

Williams Creek near Bridge ranger 

station, near Pagosa Springs, 

Colo............................. 308

Williams Fork Reservoir near Parshall,

Colo............................. 66

Williams River below................. 67

Williams River below Williams Fork

Reservoir, Colo.................. 67

near Leal, Colo...................... 64

near Parshall, Colo.................. 65

South Fork, Colo., discharge measurements of......................... 419

Willow Creek (tributary to Blue River)

near Dillon, Colo................ 78

Willow Creek (tributary to Colorado

River) near Granby, Colo......... 56

Willow Creek (tributary to Eagle Creek) 

near Double Circle Ranch, near 

Morenci, Ariz.................... 392

near Point of Pines, near Morenci,

Arlz............................. 391

Willow Creek (tributary to Green River)

near Ouray, Utah. ............... .267-269

Willow Creek diversion. See Black

River. 

Winkelman, Ariz., Gila River at........ 374

Winslow, Ariz., Chevelon Fork near....344,345

Clear Creek near....................346,347

Winter Park, Colo., Fraser River near.. 57 

Vasquez Creek near................... 59

Wolf Creek above Rhodes Canyon, near

Hanna, Utah...................... 245

discharge measurement of............. 419

Woodruff, Ariz., Little Colorado River

at............................... 337

Silver Creek near.................... 341

Woodside, Utah, Price River at'......... 276

Work, division of...................... 1.2-13

scope of............................. 1

Wurtz ditch, Colo., diveraion by....... 26,27

Yampa River at Steamboat Springs,

Colo...'.......................... 217

near Maybe 11, Colo. .................. 218

Yellowstone Creek near Altonah,

Utah............................. 258

York Canal, Ariz., diversion by........ 364

Yuma, Ariz., Colorado River at......... 39,40

gaging-stations in vicinity of....... 40

Yuma Main Canal.at................... 46

Yuma Main Canal near................. 40,45

Yuma Main Canal wasteway at.......... 40,47

Yuma Canal, discharge of, at Laguna

Dam, Arlz.-Calif................. 40,49

Yuma Main Canal at siphon-drop power

plant, near Yuma, Ariz........... 40,45

below Colorado River siphon, at

Yuma, Ariz'....................... 40,46

Yuma Main Canal wasteway at Yuma,

Ariz............................. 40,47

Yuma project, Ariz.-Calif., return

surface flows from..............40,51-52

A U. S. GOVERNMENT PRINTING OFFICE : O-I951