Surface Water Supply 

of the United Stares 

1947

Part 9. Colorado River Basin

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

 

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1089

Prepared in cooperation with the States 

of Arizona, Colorado, New Mexico, 

Utah, and ff^yoming, and other agencies

. ( ** PUBLIC PROPERTY ,nd hmfh

be'remoM te iue oiiiciai files; PRIVATE POSSESSIO 

IS 'UNLAWFUL (R, $, Sup. M, 2, pp. 380, Set

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1949
UNITED STATES DEPARTMENT OF THE INTERIOR 

J. A. Krug, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

.Washington 25, 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)

Robert Follansbee-__--_-_-________-____--_-_-___--___ - -Denver, Colo.

J. H. Gardiner____.__-_-_________----__-____-_-_-__-__-Tu?son, 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......................................................................... 5

Records of discharge collected by agencies other than the Geological Survey.......... 11

Cooperation.......................................................................... 11

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

Gaglng-statlon records............................................................... 13

Colorado River Basin............................................................... 13

Colorado River main stem......................................................... 1?

Colorado River near Grand Lake, Colo........................................... 13

Colorado River near Granby, Colo............................................... 14

Colorado River at Hot Sulphur Springs, Colo.................................... 15

Colorado River near Dotsero, Colo.............................................. 16

Colorado River at Glenwood Springs, Colo....................................... 17

Colorado River near Cameo, Colo................................................ 18

Colorado River near Cisco, Utah.........................................:...... 19

Colorado River at Lees Ferry, Aris............................................. 20

Colorado River near Grand Canyon, Aric......................................... 21

Lake Mead at Hoover Dam, Ariz.-Hev............................................. 22

Colorado River below Hoover Dam, Ariz.-Nev..................................... 23

Colorado River at Needles, Calif............................................... 24

Colorado River near Topock, Arlz............................................... 25

Havasu Lake near Parker Dan, Arls.-Calif....................................... 27

Colorado River below Parker Dam, Aria.-Calif................................... 29

Diversions between Parker Dam and Imperial Dam................................. 30

Diversion for Colorado River Indian Reservation near Parker, Arlz............ 30

Palo Verde Canal near Blythe, Calif.......................................... 30

Colorado River at Imperial Dan, Arlz.-Calif.................................... 31

Colorado River at Yuma, Arls................................................... 32

Colorado River and Pilot Knob wasteway at Rockwood gate, Calif................. 34

Diversions and return flows at and below Imperial Dam............................ 35

01la Gravity Main Canal at Imperial Dam, Aria.-Calif........................... 35

All-Amerlcan Canal near Imperial Dam, Arlz.-Calif.............................. 36

All-American Canal above Pilot Knob wasteway, Calif............................ 37

Yuma Main Canal at siphon-drop power plant, near Yuma, Arls.................... 38

Yuma Main Canal below Colorado River siphon, at Yuma, Arlz..................... 39

Yuma Main Canal wasteway at Yuma, Arlz......................................... 40

Pilot Knob wasteway near Plldt Knob, Calif..................................... 41

Diversions at Laguna Dam, ArLz.-Calif.......................................... 42

Alamo Canal at Andrade, Califl.................................................. 43

Return surface flows from Yuma project, Ariz.-Calif............................ 44

Tributaries above Gunnlson River................................................. 45

Arapaho Creek at Monarch Lake Outlet, Colo..................................... 45

Willow Creek near Granby, Colo................................................. 46

Fraser River near Winter Park, Colo............................................ 47

Fraser River at Granby, Colo................................................... 48

Vasquez Creek near Winter Park, Colo........................................... 49

St. Louis Creek near Fraser, Colo.............................................. 50

Ranch Creek near Fraser, Colo.................................................. 51

Ranch Creek near Tabernash, Colo............................................... 52

Meadow Creek near Tabernash, Colo.............................................. 53

Williams River near Leal, Colo................................................. 54

Williams River near Parshall, Colo............................................. 55

Keyser Creek near Leal, Colo................................................... 56

Troublesome Creek near Troublesome, Colo....................................... 57

Blue River at Dlllon, Colo..................................................... 59

Blue River above Green Mountain Reservoir, Colo................................ 60

Green Mountain Reservoir near Kremmllng, Colo.................................. 61

Blue River below Green Mountain Reservoir, Colo................................ 62

Snake River at Dlllon, Colo.................................................... 63

Tenmile Creek at Frisco, Colo.................................................. 64

Tenmile Creek at Dillon, Colo.................................................. 65

Straight Creek near Dlllon, Colo............................................... 66

Willow Creek near Dillon, Colo................................................. 67

Rock Creek near Dillon, Colo................................................... 63

Boulder Creek near Dlllon, Colo,............................................... 69

Slate Creek near Dlllon, Colo.................................................. 70

Black Creek below Black Lake, near Dillon, Colo. ....... f ....................... 71

Black Creek above Green Mountain Reservoir, Colo............................... 72

Otter Creek above Green Mountain Reservoir, Colo............................... 73

Cataract Creek above Green Mountain Reservoir, Colo............................ 74

Elliot Creek feeder canal to Green Mountain Reservoir, Colo.................... 75

Plney River near State Bridge, Colo.......................'..................... 76

Cagle River at Redcllff, Colo.................................................. 77

Eagle River below Gypsum, Colo................................................. 78

Turkey Creak at Redcliff, Colo................................................. 79

Homestake Creek near Redcliff, Colo............................................ 80
VI CONTENTS

Gaging-statlon records Continued. 

Colorado River Basin Continued.

Tributaries above Gunnison River Continued. Page

Gore Creek near Minturn, Colo.................................................. 81

Roaring Fork at Aspen, Colo.................................................... 82

Roaring Fork at Glenwood Springs, Colo......................................... 83

Crystal River near Redstone, Colo.............................................. 84

Fourmile Creek near Carbondale, Colo........................................... 85

West Divide Creek below Willow Creek, near Raven, Colo......................... 86

Plateau Creek near Collbran, Colo.............................................. 87

Plateau Creek near Cameo, Colo................................................. 88

Buzzard Creek near Collbran, Colo.............................................. 89

Big Creek at upper station, near Collbran, Colo................................ 90

Cottonwood Creek at upper station, near Molina, Colo........................... 91

Bull Creek at upper station, near Molina, Colo................................. 92

Coon Creek at upper station, near Mesa, Colo................................... 93

Mesa Creek near Mesa, Colo..................................................... 94

Gunnison River Basin............................................................. 95

Taylor Park Reservoir at Taylor Park, Colo..................................... 95

Taylor River below Taylor Park Reservoir, Colo................................. 96

Taylor River at Almont, Colo................................................... 97

Gunnison River near Gunnison, Colo............................................. 98

Gunnison River at lola, Colo................................................... 99

Gunnison River below Gunnison tunnel, Colo..................................... 100

ffunnison River near Grand Junction, Colo....................................... 101

East River near Crested Butte, Colo............................................ 102

East River at Almont, Colo ..............\~...~................................... 103

Slate River near Crested Butte, Colo........................................... 104

Cement Creek near Crested Butte, Colo.......................................... 105

Ohio Creek near Baldwin, Colo.................................................. 106

Ohio Creek near Gunnison, Colo................................................. 107

Castle Creek near Baldwin, Colo................................................ 109

Tomichi Creek at Sargents, Colo.. ............................................... 110

Tonichl Creek near Doylevllle, Colo............................................ Ill

Tomichi Creek at Parlln, Colo.................................................. 112

Tomichi Creek at Gunnlaon, Colo................................................ 113

Quartz Creek near Ohio, Colo................................................... 114

Cochetopa Creek near Parlln, Colo.............................................. 115

Cebolla Creek near Lake City, Colo............................................. 116

Cebolla Creek at Powderhorn, Colo.............................................. 117

Sapinero Creek at Saplnero, Colo............................................... 118

Lake Fork at Gatevlew, Colo.................................................... 119

Curecanti Creek near Sapinero, Colo. f .......................................... 120

Cimarron Creek below Squaw Creek, at Cimarron, Colo............................ 121

Crystal Creek near Maher, Colo................................................. 122

Smith Fork near Crawforcl, Colo................................................. 123

East Muddy Creek near Bardlne, Colo............................................ 124

North Fork Gunnison River near Somerset, Colo.................................. 125

Minnesota Creek near Paonia, Colo.............................................. 126

Leroux Creole near Cedaredge, Colo.'............................................. 127

Surface Creek near Cedaredge, Colo............................................. 128

Surface* Creek at Cedaredge, Colo............................................... 129

Surface Creek at Eckert, Colo.................................................. 130

Ward Creek below Riser Creel:, near Cedaredge, Colo............................. 131

Uncompahgre River at Colona, Colo.............................................. 132

Uncompahgre River at Delta, Colo............................................... 133

Roubldeau Creek at mouth, near Delta, Colo..................................... 134

Kahnah Creek near Whltewater, Colo............................................. 135

Dolores River Basin.............................................................. 136

Dolores River at Dolores, Colo................................................. 136

Dolores River near McPhee, Colo................................................ 137

Dolores River at Gateway, Colo................................................. 138

Lost Canyon Creek at Dolores, Colo............................................. 139

Twomile Creek near La Sal, Utah................................................ 140

Heat Paradox Creek, near Paradox, Colo.......................................... 141

V/est Paradox Creek near Bedrock, Colo.......................................... 142

Buckeye Reservoir Outlet near Paradox, Colo.................................... 143

San Miguel River near Placerville, Colo........................................ 144

San Miguel River at Naturita, Colo............................................. 145

Fall Creek near Fall Creek, Colo............................................... 146

Beaver Creek near Norwood, Colo................................................ 147

Horsefly Creek near Sams, Colo................................................. 148

Cottonwood Cr^ek near Nucla, Colo.............................................. 149

Naturita Creek near Norwood, Colo.............................................. 150

Tabeguache Creek near Nucla, Colo.............................................. 151

Taylor Creek near Gateway, Colo................................................ 152

Roc Creek near Uranium, Colo................................................... 153

Deep Creek near Paradox, Colo.................................................. 154

Geyser Creel: near Paradox, Colo................................................ 154

Green River Basin................................................................ 155

Green River at Warren Bridge, near Daniel, Wyo................................. 155

CJreen River near Fontenelle, Wyo............................................... 156

Green River near Llnwood, Utah................................................. 157

Green River at Green River, Utah............................................... 158

Eieaver Creel: near Daniel, Wyo.................................................. 159

Horse Creek near Daniel, Wyo................................................... 160

New Fork River below New Fork Lake, near Cora, Wyo............................. 162

Hew Fork River near Boulder, Wyo............................................... 163

Pine Creek at Pinectale, Wyo.................................................... 164

Pole Creek below Little Half Moon Lake, near Plnedale, Wyo..................... 165
CONTENTS VII

Gaging-sf.atlon records Continued. 

Colorado River Basin Continued.

Green River Basin Continued. Page.

Fall Creek near Plnedale, VJyo................................................... 166

Boulder Creek below Boulder Lake, near Boulder, Wyo..................v......... 167

East Fork near Big Sanciy, Wyo.................................................. 168

Silver Creek near Big Sandy, VJyo............................................... 169

North Piney Creek near Mason, Wyo.............................................. 170

Middle Plney Creek below South Fork, near Big Plney, Uyo...........'.........».. 1?1

Labarge Creek near Viola, Wyo.................................................. 15B

Pontenelle Creek near Fontenelle, Wyo........................................... 173

Big Sancly Creek at Leckle Ranch, near Big Sandy, Wyo........................... 174

Little Sancly Creek near Elkhorn, Wyo........................................... 175

Blacks Fork near Mlllburne, Wyo.......................................i........ 176

Blacks Fork near Urie, Wyo..................................................... 177

Blacks Fork near Lyman, Wyo..................................................... 178

East Fork of Smith Fork near Robertson, Wyo. .......................... f ........ 179

Smith Fork at Mountainvlew, Wyo.,.............................................. 180

West Fork of Smith Fork near Robertson, Wyo.................................... 181

Hams Fork near Frontier, Wyo................................................... 182

Hams Fork at Diamondvllle, Wyo................................................. 184

Henrys Fork near Lonetree, Wyo................................................. 187

Henrys Fork near Burnt fork, VJyo................................................ 188

Henryc Fork at Llnwood, Utah................................................... 189

Burnt Fork near Burntfork, VJyo................................................. 192

Sheep Creek near Manila, Utah.................................................. 193

Carter Creek at mouth, near Manila, Utah....................................... 194

Yampa River at Steamboat Springs, Colo......................................... 195

Yanpa River near Maybell, Colo................................................. 196

Elk River at Clark, Colo....................................................... 197

Fortification Creek at Cralg, Colo............................................. 198

East Fork of Williams Fork near Willow Creek, Colo............................. 199

Little Snake River near Slater, Colo........................................... 200

Little Snake River near Dlxon, Wyo............................................. 201

Little Snake River near Lily, Colo............................................. 202

Battle Creek near Slater, Colo................................................. 203

Slater Fork near Slater, Colo.................................................. 204

Brush Creek above cave, near Vernal, Utah...................................... 205

Brush Creek near Vernal, Utah.................................................. 207

Brush Creek near Jensen, Utah.................................................. 208

Oaks Park Canal near Vernal, Utah.............................................. 209

Little Brush Creek near Vernal, Utah........................................... 210

Ashley Creek below Trout Creek, near Vernal, Utah.............................. 212

Ashley Creek near Vernal, Utah................................................. 213

Ashley Creek at Sign of the Maine, near Vernal, Utah........................... 214

Ashley Creek near Jensen, Utah................................................. 215

Smith Fork Ashley Creek near Vernal, Utah...................................... 216

Dry Fork above sinks, near Dry Fork, Utah...................................... 217

Horth Fork of Dry Fnrk near Dry Fork, Utah..................................... 218

East Fork of Dry Fork near Dry Fork, Utah...................................... 219

Duchesne River at Provo River Trail, near Hanna, Utah.......................... 220

Duchesne River near Hanna, Utah................................................ 221

Duchesne River near Tabiona, Utah.............................................. 223

Duchesne River at Duchesne, Utah............................................... 224

Duchesne River at Myton, Utah.................................................. 225

Duchesne River near Randlett, Utah............................................. 226

West Fork Duchesne River near Hanna, Utah...................................... 227

Wolf Creek above Rhodes Canyon, near Hanna, Utah............................... 228

Rock Creek near Mountain Home, Utah............................................ 229

Strawberry Reservoir near Soldier Springs, Utah";............................... 230

Strawberry River near Soldier Springs, Utah.................................... 231

Strawberry River at Duchesne, Utah............................................. 232

Willow Creek near Soldier Springs, Utah........................................ 233

Currant Creek below Red Ledge Hollow, near Fruitland, Utah..................... 234

Currant Creek near Fruitland, Utah............................................. 235

VJater Hollow near Fruitland, Utah.............................................. 236

Lake Fork above Moon Lake, near Mountain Home, Utah............................ 237

Moon Lake ReserveIr near Mountain Home, Utah................................... 238

Lake Fork below Moon Lake, near Mountain Home, Utah............................ 239

Lake Fork near Upalco, Utah.................................................... 240

Brown Duck Creek near Mountain Hone, Utah...................................... 241

Yellowstone Creek near Altonah, Utah........................................... 242

Uinta River above Clover Creek, near Heola, Utah............................... 243

Uinta River near Neola, Utah................................................... 245

Ulnta River at Fort Duchesne, Utah............................................. 246

VJhiterocks River above Paradise Creek, near Whiterocks, Utah.................... 247

VJhiterocks River near Whiterocks, Utah......................................... 249

Paradise Creek near Whiterocks, Utah........................................... 250

White River near Meeker, Colo.................................................. 251

VJhite River near Watson, Utah.................................................. 252

South Fork White River near Buford, Colo....................................... 253

Price River above Scofleld Reservoir, near Scofield, Utah...................... 254

Scofleld Reservoir near Scofield, Utah......................................... 255

Price River near Scofleld, Utah................................................ 257

Price River near Heiner, Utah.................................................. 25S

Price River at Wooclslde, Utah.................................................. 259

Gooseberry Creek near Scofield, Utah........................................... 261

White River near Soldier Sunmlt, Utah.......................................... 262

llorth Fork VJhite River near Soldier Summit, Utah............................... 263

Huntington Creek near Huntlngton, Utah......................................... 264
VIII CONTENTS

Gaging-station records Continued. 

Colorado River Basin Continued.

Green River Basin Continued. Page 

San Rafael River near Green River, Utah........................................ 265

Boulger Creek near Fairvlew, Utah.............................................. 2G7

Cottonwood Creek near Orangeville, Utah........................................ 268

Dirty Devil River Basin.......................................................... 269

Fremont River near Bicknell, Utah.............................................. 269

Dirty Devil River near Hanksville, Utah........................................ 270

Escalante River Pasin............................................................ 272

Escalante River near Escalante, Utah........................................... 272

San Juan River Basin............................................................. 273

San Juan River near Pagosa Springs, Cnlo....................................... 273

San Juan Rlv^r at Pagosa Springs, Colo......................................... 274

San Juan River at Rosa, H. Ilex................................................. 275

San Juan River near Blanco, II. Hex.

Sari Juan River near Bluff, Utah.

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

Rlto Blanco near Pagosa Springs. Colo..................................... ..... 284

Navajo River at Banded Peak Ranch, near Chromo, Colo........................... 285

llavajo River at Edith, Colo.................................................... 286

Little Navajo River at Chromo, Colo............................................ 287

Pledra River at Bridge ranger station, near Pagosa Springs, Colo............... 288

Piedra River near Pledra, Oolo................................................. 289

Williams Creek near Bridge ranger station, near Pagosa Springs, Colo........... 290

Weninuche Creek near Bridge ranger station, near Pagosa Springs, Colo.......... 292

Los PInos River below Snowslide Canyon, near Weminuche Pass, Colo.............. 294

Vallecito Reservoir near Bayfleld, Colo........................................ 296

Los Plnos River near Bayfield, Colo............................................. 297

Los Plnos River at Ignaclo, Colo................................................ 298

Animas River at Howanlsvllle, Colo............................................. 299

Animas River above Tacoma, Colo................................................. 300

Aninas River at Durango, Colo.................................................. 302

Animas River near Ceilar Hill, II. Hex........................................... 303

Animas River at Farmlngton, II. Hex. ..................., f ....................... 304

Cement Creek near Silverton, Colo.............................................. 305

Mineral Creek near Silverton, Colo............................................. 306

Hemosa Creek near Hermosa, Colo................................................ 307

LIghtner Creek near Durango, Colo.............................................. 308

Florida River near Durango, Colo............................................... 309

La Plata River at Hesperus, Colo............................................... 310

La Plata River at Colorado-Nev; Ilexico State line............................... 311

La Plata River near Faraington, N. Mex......................................... "12

Cherry Creek near Red Mesa, Colo............................................... 313

West Mancos River near Mancos, Colo............................................ 314

Middle Mancos River near Mancos, Colo.......................................... 315

East Mancos River near Mancos, Colo............................................ 316

Parla River Basin................................................................ 317

Paria River at Lees Ferry, Ariz.......'......................................... 317

Little Colorado River Basin...................................................... 318

Little Colorado River above Lyrian Reservoir, near St. Johns, Ariz.............. 318

Lynan Reservoir near St. Johns, Ariz........................................... 319

Little Colorado Rive 

Little Colorado Rive 

Little Colorado Rive 

Little Colorado Rive 

Little Colorado Rive 

Little Colorado Rive

belov; Lynan Reservoir, near St. Johns, Ariz.............. 320

above Zunl Rivfvr, near Hunt, Ariz........................ 321

near Hunt, Ariz.......................................... 322

near Wnortruf1, Ariz...................................... 323

at Grand Falls, Ariz..................................... 324

near Cameron, Ariz....................................... 325

Silver Creek near Shumway, Ariz................................................ 326

Silver Creel: near Woodruff, Ariz............................................... "27

Showlow Creek at Showlow, Ariz................................................. 328

Puerco River near Ariamana, Ariz................................................ 329

Chevelon Fork below Wildcat Canyon, near Winslow, Ariz......................... 329

Chevelon Fork near Winslow, Ariz............................................... 330

Clear Creek below Willow Croek, near Winslow, Aris............................. 331

Clear Creek near Winslow, Ariz................................................. 331

Moenkopi Wash near Tuba, Ariz.................................................. 332

Bright Angel Creek Basin......................................................... 333

Bright Angel Creek near Grand Canyon, Aris..................................... 333

Virgin River Basin............................................................... 334

Virgin River at Virgin, Utah................................................... 334

Virgin River at LIttlefield, Aria.............................................. 335

North Fork Virgin River near Springtlale, Utah.................................. 336

Ash Creek near New Harmony, Utah............................................... 337

Santa Clara River near Central, Utah........................................... 338

Santa Clara River above Wlnsor Earn, near Santa Clara, Utah..................... 339

Meadow Valley Wash near Panaca, Nev............................................ 340

Pill Williams River Basin........................................................ 341

Rill Williams River near Alamo, Ariz........................................... 341

Santa Maria River near Alamo, Ariz............................................. 34k1

01la River Basin................................................................. 343

Gila River near Gila, N. MPX................................................... 343

OJla River near Cliff, N. Mex.................................................. 344

Gila River near Reri Rock, II. Mex............................................... 345

Gila River below Blue Creek, near Virden, II. Mex............................... 346
CONTENTS IX

Gagin^-statlon records Continued. 

Colorado River PasIn Continued.

Glla River Basin Continued. Page

Gils River at New Mexico-Arizona State line, near Vlrden, N. Mex............... 347

Diversions fron Glla River In Duncan Valley, N. Mm:.-Arlz...................... 348

Glla Rlv^r near Clifton, Arlz.................................................. 549

Glla RlvAf near Solononsvllle, Arlz............................................ 350

Diversions from Glla River In Safford Valley, Arlz............................. ?52

Glla Rlvpr at Safford, Arlz.................................................... 353

Glla Rlv^r at Calva, Arln...................................................... 354

Sir Caring Reservoir at Coolldre Dan, Arlz..................................... 355

Olla Rlv^r below CoolldR? ^an, Arlz............................................ 356

Glla River at Wlnk^lMan, Arlz.................................................. 357

Glla River at Kelvin, Arlz..................................................... 358

Glla River at Ashurst-Hayden Dan, near Florence, Arlz.......................... 359

Glla River below Glllesrle Dan, Arlz........................................... 360

Glla River near Dome, Arlz..................................................... 362

Sunset Canal near Vlrden, N. Ilex............................................... 363

Sunset Canal above New Mexico-Arizona State line, n^ar Vlrdnn, n. Mex.......... 364

Si rnset Canal wasteway near Vlrden, N. Mex...................................... 365

Moddle vJanal near Vlrden, N. flex............................................... 566

Mo'Mle Canal n.t New Mexlcn-Arlzona State linn, near VlrMen, N. Mex............. 367

Shrlver Canal at Vlrden, N. Mt'x................................................ 368

Valley Canal near Vlrdeti, N. M«:............................................... 369

S?m FranclBCO Rlv^r near Glenvfrinri, N. Me]:...................................... ?70

San Franclsuu River at Cllftr.n, Arln........................................... 371

Eag;le Creel: near Double ulrcl- Ranch, near Morencl, Arlz....................... 3TS

Eagle Creek above pumplnr plant, near Horencl, Arln............................ 373

Ulllow Creek diversion frnn PlRCk River, near Morencl, Arlz.................... 374

Willow Cr^el: ne^r Point of Pln^s, near Morencl, Arlz........................... 375

Vflllow Creek near Dnublp Circle Ranch, near Morencl, Arln...................... 376

San Slnon Crpel^ near Solononsvlllo, Arlz....................................... 377

San Carlos Rl^er noar Peridot, Arlc............................................ 578

San Pedro Rlv^r at Charlestrin, Arlz............................................ 379

San Ppdro River n^ar RedlnRton, Arlz........................................... 380

Santa Cruc RIvpr npqr Nc^ales, Arli............................................ 381

S^ntn '^rnz Rlv»r ^t Tucson, Arl z............................................... 362

Santa Crus River at Rllllto, Ar^z.............................................. 3?3

Scmolta Creek near Patagnnla, Arlz............................................. 3E4

Tucson Arroyo at Vine Avenue, Tucson, Arl:j..................................... 385

Rllllto Creel: near Tucson, Arlz................................................ "86

Ealjlno Greek near Tucson. Arlz................................................. 337

Salt River nenr Chrysotlle, Arlz............................................... 3^8

Salt River near Roosevelt. Arlz................................................ 389

Reservoir systepi on Salt Klv^r at and bflow Roosevelt Dan. Arlz................ 390

Salt River below Stewart Mountetln Dan, Arlz.................................... "PI

Vftilte Rlv^r near HcNary, Arlz.................................................. 3%

Tonto Creek above Gun Creak, near Koopfvelt, Ar]z.............................. P93

Verde River b^low Tangle Creek, above Horseshoe Dan, Arlz...................... 394

Reservoir systen on Verde River at ELnd bplow Horseshoe D?i.n, Arlz............... 395

Vnrde ftlvf r below Partlett D^n, Arlz........................................... 396

Granite Creak near Prescntt, Arlz.............................................. 3P7

Amta Frla River notr Maypr, Arlz............................................... 3^2

Af;na Fr^a Rlvpr at Lake Pleasant Iian, Aric..................................... 3n&

L:tke Pleasant at Lake Pleasant Dan, Arlz....................................... 40C

HaRsayanpa Rlv^r near Morrlstown, Arlz......................................... 4L1

3ul]luir SiTlnp Valley.............................................................. 40^

Wlilt^.nt^r Drnw Pa^ln............................................................ 402

Whltewater Draw near Douglas, Arlz............................................. 402

Miscellaneous discharge TteasurpnentR................................................. 403

Ind^::................................................................................ 411

FlRUTP Gagln^-statlon structures: A, Colorado River at Lees Ferry. Arlz.;

B, Bill Williams River at Planet, Arlz

Gating at itlons In vlclnlt)^ nf Yuna, Arlz
SURFACE WATER SUPPLY OP THE COLORADO RIVER BASIN, 1947

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, 1947. 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 11,100 paging stations 

in the 48 States and also at many in the Territories of Alaska and Hawaii. In July 1947, 

5,810 gaging stations, including those in Hawaii, 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 acknowledged 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. Ir the present 

volume, the section on cooperation of the second kind appears on page 11.

DEFINITION OF TERMS

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

herein are defined as follows:

"Second-feet" is an abbreviation for "cubic 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 the rirnoff Is distributed uniformly both as regards time and area.

"Hunoff 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 inphes.

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.

"Second-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 646,217 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 used 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, 1947, PART 9

"Contents" is a term applied to the volume of water in a reservoir. It is computed on 

the basis of a level pool and does not include bank storage unless otherwise indicated.

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 g.'.ves 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 use 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 the 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 from 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 

occasional winter discharge measurements, consideration being given to the available information on temperature 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 Is 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 reiort the data 

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

A. COLORADO RIVER AT LEES FERRY, ARIZ. 

Note landing tower.

B. BILL WILLIAMS RIVER AT PLANET, AKIZ.

FIGURE 1. GAGING-STATION STRUCTURES.
4 SURFACE WATER SUPPLY, 1947, 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, its latitude and longitude as 

determined from the beet available maps, and information in regard to diversions that 

decrease the flow at the gage, artificial regulation from pondage or storage, and the 

accuracy of the records. Under "Average discharge" is given the average discharge for the 

number of years indicated. It is given only for stations for which there are 10 or more 

complete years of record. 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. Likewise the minimum discharge represents the lowest stage, unless otherwise qualified. Selected peak discharges 

with the times of their occurrence are given, below the table of monthly discharge, for 

some stations. This supplementary information is generally omitted for a station at which 

the drainage area of the stream is less than 10 or more than 10,000 square miles or at 

which, on most days, the peak discharge exceeds the mean discharge by less than 10 percent

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 essential 

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 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

t 

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

feet per second during the month.

For most gaging stations on lakes and reservoirs the data presented comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs a table showing daily contents 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.
SURFACE WATER SUPPLY, 1947, PART 9 5

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 dally 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 dally 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 reservoir contents, unless Its Inclusion Is Indicated. Even at those Stations 

where adjustments are made, In some Instances 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.

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 River 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.
6 SURFACE WATER SUPPLY, 1947, PART 9

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 

uf the Geological Survey as follows:

East of the Mississippi River:

Albany, M. Y., 526 Federal Building.

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

Atlanta, Ga., 411 Grand Theater Building.

Augusta, Maine, 420 Statehouse.

Baton Rouge, La., 538 Florida Street.

Boston, Mass., 939 Post Office Building.

Champaign, 111., 605 South Nell Street.

Charleston, W. Va., 408 Union Building.

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

Chattanooga, Tenn., 442 Post Office Building.

College Park, Md., 105 Engineering Building, University of Maryland.

Columbia, S. C.,207 Creason Building.

Columbus, Ohio, 404 Engineering Experiment Station, Ohio State University.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 205 Underwriters Building.

Jackson, Miss., 208 Millsaps Building.

Knoxville, Tenn., 337 Post Office Building.

Louisville, Ky., 531 Federal Building.

Madison, Wis., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

Morgantown, W. Va., 407 Mineral Industries Building.

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building.

Ocala, Fla., 302 Post Office Building.

Pittsburgh, Pa., 515 Plaza Building.

Raleigh, M. C., 244 Educational Building.

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

Trenton, M. J., 228 Federal Building.

Washington, D. C., Federal Works Agency Building.

Williamsburg, Ky., State Highway Building.

West of the Mississippi River;

Albuquerque, W. Mex., 723 Worth Second Street.

Austin, Tex., 302 West Fifteenth Street.

Bismarck, M. Dak., 7 Eltinge Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., 126 Mew 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, Mebr., 510 Rudge-Guenzel Building.

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

Oklahoma City, Okla., 203 Council Building.

Pierre, S. Dak., 301 Federal Building.

Portland, Oreg., 606 Post Of«fice 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, W. 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 th3 Director, 

Geological Survey, Washington, D. C.

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

may usually be obtained from the district offices listed above.
PUBLICATIONS

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 thos3 indicated 

have been included for some streams.

Stream-flow data for the years 1884-19O1, In reports of the Geological Survey 

(A > Annual Report; B « Bulletin; W . Water-Supply Paper)

Report

loth A, pt.

16th A, pt. 

B 140......

W 11.......

18th A, pt.

19th A, pt. 

W 27

W 28.......

W 35 to 39.

H 75.......

2

2

4

4

Character of data

Descriptive Information only.

Descriptive Information only. 

Descriptions, measurements, gage heights, ratings, and 

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.

Descriptions, measurements, gage heights, and ratings. .......

Monthly discharge ............................................

Year

1895.

1895-96.

1897.

1899.

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 Papers 283, 303, 323, 353, 403, 433, 

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

The records at most of the stations discussed in these reports extend ov?r 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 tha 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.

852060 O - 49 - 2
Numbers of water-supply papers containing results of stream measurements, 1

Year

1899 a... 

1900 g... 

1901..... 

1902..... 

1903.....

1906..... 

1907-8... 

1909.... .

1910. .... 

1911..... 

1912.. ... 

1913..... 

1914.....

1915. .... 

1916. .... 

1917.... . 

1918..... 

1919-20..

1921.... . 

1922.. ... 

1923. .... 

1924..... 

1925...'..

1926. .... 

1927..... 

1928.. .. . 

1929..... 

1930.....

1931. .... 

1932..... 

1933..... 

1934..... 

1935.....

1936. .... 

1937 ..... 

1938.....' 

1939..... 

1940.. ...

1941. .... 

1942..... 

1943.... . 

1944..... 

1945.....

1946. .... 

1947.. .. .

1

35

47, h48 

65, 75 

82 

97

0201, p202, q203 

241 

261

301 

321 

351 

381

431 

451 

471 

501

541 

561 

581 

601

641 

6S1 

661 

896

711 

726 

741 

756 

781

8O1 

821 

851 

871 

891

92l 

951 

971 

1001 

1031

1081

b35, 36 

48 

65, 75 

b82, 83 

b97, 98

q203, 204 

242 

262

302 

322 

352 

332

432 

452 

472 

502

542 

562 

582 

602

642 

662 

682

(597

712 

727 

742 

757 

782

802 

822 

852 

872 

892

922 

952 

972 

1002 

1032

1082

3

36 

48, 149 

65, 75 

83 

98

205 

243 

263

303 

323 

353 

383

433 

453 

473 

503

543

563 

583 

603

643 

663 

683 

698

713 

728 

743 

758 

783

803 

823 

853 

873 

893

923 

953 

973 

1003 

1033

1083

4

Sff

49 

65, 75 

m82, 83 

97

206 

244 

264

304 

324 

354 

384

434 

454 

474 

504

524 

544 

564 

584 

604

644 

664 

684 

699

714 

729 

744 

759 

784

804 

824 

854 

874 

894

924 

954 

974 

1004 

1034

1084

5

3S 

49 

k65, 66, 75 

k83, 85 

k98, 99, nlOO

207 

245 

265

285 

305 

325 

355 

385

405 

435 

455 

475 

505

525

545 

565 

585 

605

6Z5 

645 

665 

685 

700

715 

730 

745 

760 

785

805 

825 

855 

875 

895

925 

955 

975 

1005 

1035

1055 

1085

6

cS6, 37 

49, J50 

66, 75 

84 

99

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

7

37 

50 

k65, 66, 75 

k83, 84 

k98, 99

k205, 209 

247 

267

287 

307 

327 

357 

387

407 

437 

457 

477 

507

527 

547 

567 

587 

607

627 

647 

667 

687 

702

717 

732 

747 

762 

787

807 

827 

857 

877 

897

927 

957 

977 

1007 

1037

1057 

1087

a Rating tables and Index to Water-Supply Papers 35-39 g 

contained In Water-Supply Paper 39. Monthly discharge for 1899 In 21st Annual Report, part 4. 

b James River only. h 

c Qallatln River. i 

d Green and Gunnison Rivers and Colorado River above J

(Junnlson River.

e Mojave River only. k 

f Kings and Kern Rivers and south Pacific slope basins, m

Rating tables and Index to Water-Supply 

contained In Water-Supply Paper 52. Mo

for 1900 in 22d Annual Report, part 4.

Wlssahlckon and Schuylkill Rivers to Jam

Scioto River.

Loup, Platte, and Elkhorn Rivers and tri

Platte River.

Tributaries of Mississippi River from ea

Lake Ontario and tributaries to St. Lawr
PUBLICATIONS

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 papers. The following table gives the numbers and titles of these 

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

Reports containing compilations of records of discharge by States ana 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 alope basins in,,... 

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

Pacific, and Or eat basins In.

DRAINAGE BASIN 

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

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

at base stations In. 

Colorado River Basin (Arlz., Calif., Nev., N. Hex., Utah), Surface waters 

at stations on tributaries In lower. 

Columbia River Basin, upper (Mont., Idaho), Surface waters of. ...........

Green River (Colo., Utah, Wyo.) and Its utilization. .....................

New-Kanawha River Basin (N. 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. 

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

Susquehanna River Basin (Pa., Md.) Hydrography of ........................

Period

1895-1903 

1887-1912 

1878-1912 

1891-1912

1894-19?? 

1895-1927

1888-19U

1891-1938 

1888-1938 

18J3-1938

1394-1926

1895-1920

1895-1906 

1888-1913

1889-1937 

1S90-1904

Vater-Supply 

Paper

107 

298 

299 

300

636-E 

637-A

395

918 

1049 

91S

61S

536

392 

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.

State reports containing compilations of records of discharge

State

Colorado ......

Connecticut. . .

Florida.......

Period

1895-1915

1881-1935

1900-1927 

1912-33

1898-1946

1907 19

1908 11

Report

Water resources of Colorado, Appendix 2, 

Data on stream-gaging stations of 

Colorado.!

vols. 1 and 2, Stream-flow data of 

Colorado . 

Bull. 44, Water resources of Connecticut...

Bull. 31, Springs of Florida. ..............

and flood flow relating to Iowa streams..

resources of Iowa.

Issued by

Geological Survey of Alabama 

Arkansas Geological Survey.

State Planning Commission, 

Water Conservation Board, 

State engineer. 

Do.

State Geological and Natural 

History Survey. 

State Water Commission.

Florida Geological Survey.

Rivers and Lakes Commission.

Division o" Waterways.

Department of Conservation.

Do.

Iowa Geological Survey.

Do.

1 Contains records of yearly discharge only.
10

SURFACE WATER SUPPLY, 1947, PART 9 

State reports containing compilations of records of discharge Continued

State

Kansas ........ 

Do .........

Do .........

Louisiana. .... 

Maine .........

Minnesota. .... 

Missouri...... 

Do ......... 

Montana .......

Nebraska. .....

New Hampshire. 

New Jersey. . . .

Do .........

New Mexico... . 

North Carolina

Do ........

North Dakota . .

Do ......... 

Do .........

Ohio ..........

Do ....... .

Pennsylvania . .

Rhode Island.. 

South C.;-ollna

Tennessee. ....

Do .........

Washington. . . . 

Wisconsin. ....

Period

1895-1919

1924-28 

1928-35 

1935 39

1910-20 

1903-38

1887-1920 

1929-37

1892-1943

1909-12 

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 

1919-21

1882-1938 

1882-1944

1898-1921

1898-1944 

1902-39

1898-1939 

1878-1914 

1914-24 

1924-30 

1930-36 

1890-1911 

1928-32

1929-41 

1884-1946

1874-1924 

1920-30 

1889-1905 

1906-10 

1911-16 

1895-1927 

1927-42

1927-42 

1927-42 

1927-42

1878-1933 

1888-1914 

1914-23

Report

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

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

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

Qeol. Bull. 16, Surface water supply of 

Louisiana. 

1st annual report .......................... 

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. 

Water-resources Investigation of Minnesota. 

Vol. 20, 2d series, Water resources of 

Missouri. 

Vol. 26, 2d series, Surface waters of 

Missouri. 

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

sources of Montana. 

1st hydrographlc 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.^ 

Hydrologic Data on the Neuse River Basin. 

Hydrologlc Data on the Cape Pear River 

Basin. 

Hydrologic Data on the Yadkin-Pee Dee River 

Basin. 

Report to Governor of North Dakota on 

flood control. 

Surface water In North Dakota .............. 

Supplement B, 4th biennial report ..........

Bull. 73, Ohio stream flow, Part 1.........

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 . 

Bull. 9, Water resources of the State of 

Oregon. 

Report of the Water Supply Commission of 

Pennsylvania. 

Stream-flow records of Pennsylvania. .......

Bull . 17 , Summary of records of surface 

water supply of South Carolina.

Bull. 34, Water resources of Tennessee3 .... 

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

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

Bull. 4, Surface water supply 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 

hydrometrlc data. 

1st report of Railroad Commission of Wls2d report of Railroad Commission of Wisconsin to Legislature on water powers.

Issued by

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. 

State Drainage Commission.

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. 

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. 

Do.

Water Supply Commission of 

Pennsylvania. 

Department of Forests and 

Waters . 

Department of Public Works. 

South Carolina Research, 

Planning and Development 

Board. 

Department of Education. 

Do. 

Office of the State Engineer. 

Do. 

Do. 

Virginia Geological Survey. 

Virginia Conservation Commission.

Do. 

Do. 

Do.

Department of Conservation 

and Development . 

Railroad Commission of Wisconsin. 

Do.

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

discharge.

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

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

have issued annual or biennial reports in which are contained records of discharge: California, 

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

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

Oregon, Pennsylvania, Rhode Island, Washington, and Wyoming.
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 11

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 recert of these 

special reports also contain other pertinent hydrologlc 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 T11, 

Paper AJ.KJ."

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 Destrustive 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.

?73-E The New York State flood of July 1935..

796-B Flood on Republican and Kansas River.s, 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, New England rivers.

799 The floods of March 1936, part 2, Hudson River to Susquehanna River region.

800 The floods of March 1936, part 3, Potomac, James, and upper Ohio Rivers.

816 Major Texas floods of 1936.

836-A Stages and flood discharges of the Connecticut River at Harford, 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 1937.

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 BouldBr (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 1940 in southeastern States.

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

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The Western Colorado Power Co. continued, during the water year October 1946 to September 1947, to collect records of daily discharge for Cascade Creek near Taeoma, Colo., 

which now cover the years 1915-47. 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 Color-ado River below Boulder Dam and on Bill Williams River); 

San Carlos Irrigation and Drainage District; Maricopa County Municipal Water 

Conservation District No. 1, Qila Valley Irrigation District; ami i-ity of Tin-son. 

California: Imperial Irrigation restrict.
12 SURFACE WATER SUPPLY, 1947, PART 9

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, T. M. McClure succeeded by John H. 

Bliss; New Mexico Interstate Stream Commission, T. M. McClure, succeeded by John H. 

Bliss; State Highway Department, F. G. Healy, State Highway Engineer succeeded by 

B. G. Dwyre.

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

Utah: Office of the State Engineer, E. H. Watson; and Utah Water and Power Board, 

W. R. Wallace, Chairman, E. H. Watson, Executive Secretary.

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 four 

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 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) and for 

Green River near Linwood, Utah, Sheep Creek near Manila, Utah, Twomile Creek near La Sal, 

Utah, and White River near Watson, Utah, Robert Follansbee, 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 Ignaaio, Colo., Berkeley Johnson; in Utah (except for the four 

stations named above), and for Nevada, M. T. Wilson; in Wyoming, Robert Follansbee.

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

COLORADO RIVER BASIN

13

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., tfiree-quarters of a mile upstream from Grand Lake Outlet and 3 miles southwest of

town of Grand Lake. 

Drainage area.- 103 square miles. 

Kecoras available - July 1904 to September 1909, September 1910 to September 1918, May

Iyi)4 to September 1947.

Average discharge.- 26 years, 110 second-feet. 

Jgcremes.- Maximum discharge during year, 694 second-feet June 22 (gage height, 5.79

reet) ; minimum daily, 10 second-feet Jan. 28.

1904-9, 1910-18, 1934-47: 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 excellent except those for Nov. 1 to Mar. 31, and Sept. 16-30, which

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

River ditch through La Poudre Pass to Cache la Poudre Basin during the water year 1947

is given in the following table:

Grand River ditch

Month

June .......

July. ......

August. .... 

September. .

Total. . . .

Acre-feet

11,840

2,970 

577

24,820

Discharge, in second-feet, water year October 1946 to September 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.

21

21

21

26

30

34

33

34

33 ' 33

31

27

29

28

29

29

31

32

30

29

29

29

29

31

29

28

28

28

29

33

29

Nov.

29

26

28

31

32

30

29

29

30

31

32

32

31

*28

24

23

24

25

24

23

22

21

21

24

24

24

25

25

24

23

Dec.

23

21

21

20

20

21

21

21

21

21

21

21

21

21

21

21

21

19

*17

15

15

15

15

15

15

15

16

13

13

14

15

Jan.

16

17

16

16

14

13

13

13

14

13

13

12

12

13

12

13

14

14

*12

13

12

15

14

13

12

12

11

10

11

15

17

Feb.

15

14

14

14

14

14

14

14

14

14

14

14

14

*14

14

14

13

13

13

13

13

13

13

13

12

12

13

12

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

March.

Hay

September. .................................

Water year 1946-47 ... ..................

Mar.

12

14

16

16

16

16

16

17

16

16

16

15

*15

16

18

16

16

16

16

17

18

21

18

16

21

16

16

22

17

17

18

Apr.

19

20

21

20

18

20

18

18

18

IS

18

18

23

19

19

20

25

22

26

37

50

69

71

69

65

64

66

66

66

80

Secondfoot-days

569

18,417.8

996

33,818

May

103

133

189

292

438

425

412

466

480

485

-562

438

327

281

267

257

267

303

319

323

281

323

348

288

254

260

315

416

323

264

245

Maximum

23

400

80

62

664

June

236

236

292

311

288

267

292

470

526

443

380

358

323

260

251

327

389

430

461

480

616

664

550

448

416

466

520

556

586

412

-

Minimum

13

6.

21

10

July

331

327

371

376

 358

288

242

199

185

167

138

125

110

102

94

125

126

126

94

83

82

82

83

67

57

50

47

44

38

36

33

Aug.

32

29

26

25

26

26

21

21

26

57

58

64

56

52

56

51

51

51

49

44

43

42

40

41

57

42

36

32

30

29

27

Meai

18.4

2 50.5

13 4

33.2

92.7

Sept.

27

24

24

26

24

21

24

24

24

33

62

52

49

46

38

35

39

35

33

33

31

29

31

32

38

37

35

33

27

30

-

Runoff in 

acre-feet

1,130

36,520

1,980

67,080

* Winter discharge measurement made on this day. 

Mote.- Stage-discharge relation affected by ice. Nov. 

an. 1, 3, 30, 31, Feb. 1-3, 8-16, 21, Mar. 1-3, 7, 10.

3-7, 10-14, Dec. 18, 19, 21, 22, 2E
COLORADO RIVER MAIN 3TEM

Colorado River near Granby, Colo.

Location.- Water-stage recorder, lat. 40°07', long. 105°54', in sec. 22, T. 2 N., R. 76 

W., 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 1947.

Average discharge.- 16 years, 322 second-feet.

Extremes.- Maximum discharge during year, 2,830 second-feet June 10 (gage height, 4.37 

reet); minimum daily, 35 second-feet (regulated) Mar. 13.

1908-11, 1934-47: Maximum discharge observed, 4,100 second-feet June 20, 1909 

(gage height, 5.5 feet, datum then in use); minimum daily, 12 second-feet Sept. 17, 

1946; minimum observed, prior to starting construction of Shadow Mountain Reservoir, 

20 second-feet 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. For transmountain diversion by Grand River ditch through La Poudre Pass to Cache la Poudre River. Basin, 

see preceding page. Transmountain diversion through Alva B. Adams tunnel to Thompson 

Kiver Basin is given in following table:

Alva B. Adams tunnel

Month

August 

September- .

Total.

Discharge, in second-feet, water year October 1946 to September 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.

110

120

120

72

74

72

71

73

73

75

78

80

83

83

80

80

85

85

88

85

83

83

88

98

98

98

98

98

98

124

130

Nov.

120

120

115

115

120

115

110

110

110

120

130 .

130

120

*105

85

80

70

65

62

65

68

68

68

70

70

68

66

70

72

70

-

Dec.

70

66

64

64

65

64

60

58

58

58

60

60

60

60

58

54

52

50

48

*49

48

48

47

47

48

49

49

48

48

45

43

Jan.

44

45

45

45

45

43

42

41

41

42

42

42

42

41

40

39

39

39

39

*38

38

58

58

37

37

37

38

38

38

38

39

Feb.

40

40

40

39

38

39

39

39

40

39

38

38

38

*37

38

38

38

39

38

38

39

39

39

38

37

38

38

37

-

-

Month

October ........ ...........................

November ...............................

Decembe r ...................................

Calendar year 1946 ......................

January ..................................

February. ..................................

March. .......................... ..........

April. .....................................

May. ........................... ..........

June ............ .........................

July ................................... ...

August ................................ ....

September. ............................ ....

Water year 1946-4? ... .................

Mar.

36

37

38

37

37

36

36

37

38

38

37

36

*35

37

38

39

40

40

40

40

41

43

46

45

44

45

47

48

48

49

50

Apr.

54

56

57

56

54

54

54

54

56

60

64

66

64

90

120

120

120

*130

112

136

208

246

258

218

194

201

218

208

208

266

-

Secondfoot-days

2 ,781

2,757

1,698

Of ±

1,250

1,077

1 258

3J802

34,667

47,953

29,199

7 596

2*969

137,007

May

345

476

595

724

970

1,290

1,490

1,750

1,970

1,990

2,030

1,960

1,640

1,280

1,070

950

920

960

1,040

1,030

970

870

807

870

880

870

910

980

1,050

1,040

| 940

Maximum

130

1 30

70

2,020

45

40

50

266

2,030

2,800

2,100

142

2,800

June

861

764

789

686

630

581

644

1,420

2,520

2,800

2,680

2,430

1,630

861

807

940

1,120

1,270

1,440

1,820

2,430

2,530

2,400

2,250

2,000

1,800

1,900

1 , 950

2,000

2,000

-

Minimum

71

62

43

12

37

37

35

54

345

581

229

102

78

Z5

July

2,050

2,iob

1,700

1,400

1,200

1,400

1,500

1,600

1,700

1,500

1,200

1,100

1,000

900

800

840

880

910

870

724

637

512

434

402

345

266

246

240

229

236

278

Aug.

440

488

299

299

396

429

286

278

355

326

308

312

294

278

262

254

240

215

187

173

170

159

156

148

142

139

127

121

108

105

102

Mean

89 = 7

91.9

54,8

246

40.3

38.5

40.6

127

1,118

1,598

942

245

99.0

375

Sept.

98

95

92

92

85

85

83

78

78

83

98

92

90

90

92

95

98

98

92

90

88

85

98

108

136

142

139

133

121

115

-

Runoff in 

acre feet

5,520

5,470

3,370

178,400

2,480

2,140

2,5OO

7,540

68,760

95.11U

57,920

15,070

*

271,800

?-discharge
COLORADO RIVER MAIN STEM 15

Colorado River at Hot Sulphur Springs, Colo.

Location.- Water-stage recorder, lat. 40°05', long. 106°05', in see. 1, T. IN., R.

w. , 1 mile east of Hot Sulphur Springs and 3 miles upstream from Beaver Creek. 

Drainage area.- 782 square miles.

-feet, 

(gage height, 4.19

teet); minimum daily, 78 second-feet (regulated) Jan. 23-31.

1904-9, 1910-24, 1925-47: 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. 

Remarks.- Records excellent except those for period of ice effect, which are fair. DiVPr*Rl _,. ^j.vyin, nnR aVimra <auv, V ss R-ha-Mnn ^uau-L^u fnr» i'jj. ^ irrigation. r>r>1 rra-fM ,-\n Tyan Transmountain t3mnny~i4-o 1 >i rM diversion ITQT>O i nv* 4-V-,v*rMi through rrln TM Pioneer ny-i£}OT» bore 

of Moffat tunnel from Praser River Basin to South Platte River Basin. Total flow 

diverted during water year 1947 was 33,600 acre-feet (see p. 48 for record by months). 

Transmountain diversion by Grand River ditch through La Poudre Pass to Cache la Poudre 

River Basin, and through Alva B. Adams tunnel to Thompson River Basin (see j-p. 13, 14). 

Records of water analyses for the water year 1947 are given in Water-Supply Paper 1102.

Rating table, water year 1946-47, except period of Ice effect 

(gage height, In feet, and discharge. In second-feet)

.9

107

170

300

1.3 

1.6 

1.9 

2.4

505

710

980

1,570

3.0 

3.6 

4.1

2,480

3,540

4 , 540

Discharge, in second-feet, water year October 1946 to September 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.

154

182

182

147

154

147

144

147

140

147

140

150

178

170

178

178

182

182

182

170

174

178

174

182

182

190

182

178

182

206

202

Nov.

186

194

178

202

198

198

206

200

200

205

210

200

190

170

165

150

130

1£0

125

125

130

125

130

130

125

120

125

135

135

130

-

Dec.

125

125

125

130

130

125

125

125

125

120

125

130

130

135

135

130

125

110

105

115

110

105

*104

105

105

105

105

105

100

90

85

Jan.

95

95

95

95

98

94

90

90

92

92

94

94

94

90

90

*86

84

84

88

90

88

86

78

78

78

78

78

78

78

78

78

Feb.

82

82

84

84

80

90

90

90

90

86

86

86

86

86

*88

86

84

86

88

86

86

90

90

88

84

88

88

84

-

-

-

Month

October ......................... ..........

Novembe r ......... ........... ... . ......

Decembe r ...................................

Calendar year 1946 ...................

January. .................. ..... . . . .

February. .......................... .....

March. .......... ......... . ....

April .............................. ......

May. .......................................

June ........................... .... .....

July. ............................... . ...

August. ............... ...... . .....

September .... .................. .........

Water year 1946-47 ... ..................

Mar.

84

84

88

90

86

86

88

92

92

94

100

100

95

*102

110

105

110

115

120

120

130

130

130

120

120

120

120

130

140

150

140

Apr.

140

150

160

160

150

150

160

180

220

210

206

170

167

232

335

350

*320

380

310

325

483

607

628

478

400

405

494

450

440

535

-

Secondfoot-days

5,284

4,837

3,614

154,620

2,706

2,418

3,391

9 395

69*232

86,260

44,108

13,467

6,488

251,200

May

642

1,000

1,370

1,650

2,200

2,600

2,820

3,310

3,640

3,620

3,800

3,560

3,000

2,530

2,250

2,100

2,030

2,140

2,260

2,150

2,000

1,920

1,880

1,880

1,780

1,740

1,780

2,030

1,980

1,850

1,720

Maximum

206

210

135

3,000

98

150

628

3,800

4,540

'ess

4,540

June

1,630

1,530

1,600

1,710

1,710

1,580

1,740

2,680

4,160

4,440

4,180

4,080

3,090

2,280

2,000

2,140

2,400

2,680

2,930

3,360

4,280

4,540

3,900

3,400

3,040

2,790

2,870

3,050

3,200

3,270

-

Minimum

140

120

85

72

78

84

140

642

1,530

415

237

78

Julj3,220

3,020

2,450

2,020

1,960

2,170

2,250

2,280

2,210

2,iao

1,980

1,7*0

1,570

1,34-0

1,190

1,250

1,360

1,320

1,190

1,000

880

808

782

688

586

494

450

44-0

415

4fO

445

Aug.

572

665

483

488

586

635

472

466

523

579

553

593

565

505

478

461

450

435

415

360

335

325

315

310

315

291

286

268

255

246

237

M>an

170

161

117

424

87,3

86.4

109 '

313

2 2 33

2* 875

1 423

434

216

688

Sept.

228

219

214

214

202

198

210

210

202

242

320

291

264

246

228

210

206

206

198

194

186

178

182

190

219

219

214

206

198

194

-

Runoff in 

acre feet

10,480

9,590

7,170

306,700

5,370

4,800

6,730

18,630

137,300

171,100

87,490

26,710

12 ,870

498,200

lu Ho gage 

during most
COLORADO RIVER MAIN STEM

Colorado River near Dotsero, Colo.

Location.- Water-stage recorder, lat. 39°39', long. 107 0 05', In sec. 6, T. 5 S., R. 86 

W., ij miles west of Dotsero and 1^ miles downstream from Eagle River.

Drainage area.- 4,390 square miles.

Records available.- December 1940 to September 1947

Extremes.- Maximum discharge during year, 14,000 second-feet June 21 {gage height, 9.58 

reet); minimum dally, 528 second-feet Mar. 15.

1940-47: Maximum discharge, 15,400 second-feet June 7, 1942 {gage helfht, 10.02 

feet); minimum dally, 350 second-feet Jan. 5, 1944.

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

which are fair. Plow partly regulated by Green Mountain Reservoir on Blue River 

{capacity, 146,900 acre-feet usable storage).

Cooperation.- Gage-height record furnished by the Public Service Co. of Colorado. 

Discharge, in second-feet, water year October 1946 to September 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.

896

973

952

952

945

938

810

762

917

952

973

996

988

1,090

1,080

1,160

1,210

1,360

1,290

1,260

1,060

1,120

1,290

1,560

1,290

1,220

1,070

959

875

1,180

1,220

Nov.

1,210

1,000

988

1,110

889

996

980

1,100

1,030

1,000

804

840

868

774

889

861

792

726

692

762

*816

1,060

1,320

1,290

1,360

1,160

1,270

1,300

1,200

1,320

-

Dec.

1,210

1,040

1,280

1,240

1,190

1,230

1,220

1,180

1,300

1,260

1,230

1,280

1,290

1,310

1,310

1,240

1,260

bl.lOO

bl,050

bl,070

bl,080

1)1,070

bl.110

bl,170

bl,210

1,360

*1,380

1,350

1,210

1,000

840

Jan.

1,000

950

910

880

920

930

930

900

750

760

840

820

780

720

660

600

640

710

820

890

770

880

820

840

790

820

880

950

880

700

680

Feb.

750

960

1,000

1,000

1,020

1,090

1,100

900

840

1,020

1,030

1,050

1,050

1,000

970

1,130

860

880

830

820

900

1,080

1,100

1,020

660

700

780

800

_

-

Month

October. ...................................

November ......................... .........

December. ..................................

Calendar year 1946 ................. ....

January. ................................. .

February ...................................

March. .....................................

April. .....................................

May........................................

June .......................................

July .......................................

August .....................................

September. .................................

Water year 1946-47 ...................:..

Mar.

620

670

710

620

630

800

720

670

690

560

626

847

709

565

528

538

560

704

1,100

1,390

1,370

1,490

,660

,720

,390

,300

,300

,300

,520

,630

1,820

Apr.

1,770

1,640

1,810

2,000

1,840

1,540

1,490

1,450

1,370

1,490

1,410

1,500

959

861

1,260

1,880

1,640

1,760

1,910

1,770

2,090

2,810

2,930

2,630

2,240

2,020

2,220

2,200

2,510

2,510

Secondfoot-days

33,148

30,407

37,070

720,202

25,420

26,340

30,757

55,510

229, 690

294,290

206 , 910

69,000

38,565

1,077,107

May

2,830

3,650

5,250

6,870

8,180

9,140

9,650

10,400

11 ,400

11,600

11,500

10,600

9,650

8,660

7,580

7,140

6,550

6,150

6,170

6,810

6,760

6,830

7,180

6,550

5,660

5,820

6,530

6,950

6,870

5,800

4,960

Maximum

1,360

1,360

1,380

8,740

1,000

1 130

1 ,820

2,930

11,600

13,300

11 , 900

2 ,830

1,860

13,300

June

4,950

5,820

6,760

7,940

7,800

7,260

7,380

8,880

10,600

11,600

11,900

12,100

11,200

9,870

8,740

8,570

9,010

9,470

10,000

11,200

13,200

13,300

12,600

11,400

10,400

9,620

9,620

10,100

11,400

11,600

-

Minimum

762

692

840

680

600

660

528

861

2,830

4,950

2,740

1,210

810

528

July

11,900

11,200

10,700

10,600

9,980

9,670

9,580

9,180

9,470

9,180

8,520

7,940

7,240

6,530

6,240

5,800

5,430

5,890

5,790

4,830

4,120

4,620

4,460

4,450

4,130

3,820

3,490

3,040

3,210

3,160

2,740

Aug.

2,770

2,760

2,830

2,200

2,690

2,800

2,810

2,620

2,740

2,690

2,050

2,620

2,660

2,570

2,370

2,390

2,140

1,800

2,260

2,330

2,000

1,980

2,010

1,660

1,360

1,480

1,830

1,850

1,780

1,740

1,210

Mean

1,069

1,014

1,196

1,973

820

941

992

1,850

7,409

6J675

2,226

1,286

2,951

Sept.

938

810

847

1,190

1,360

1,060

1,120

1,060

1,030

1,220

1,630

1,760

1,860

1,770

1,640

1,580

1,390

1,490

1,460

1,490

1,150

1,340

1,240

1,220

1,260

1,130

1,110

1,050

1,120

1,240

-

Runoff in 

ao re-feet

65,750

60,310

73,530

1,428,000

50,420

52 240

6l!oiO

110,100

455,600

583,700

410,400

136,900

76,490

2,136,000

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 9, 10, Dec. 7-10, Dec. 30 to Mar. 9 (stage-discharge relation 

affected by ice most of period); discharge computed on basis of records for station at Olenwood 

Springs.
COLORADO RIVER MAIN STEM 17

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., at Glenwood Springs, half a mile upstream from Roaring Fork. 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 1947.

Average discharge.- 48 years, 2,910 second-feet.

Extremes.- Maximum discharge during year, 14,200 second-feet June 21 (gag3 height, 8.88 

reet); minimum daily, 604 second-feet Jan. 17.

1899-1947: 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 good except those for May 13 to Aug. 8, which are fair. Diversions 

above station for irrigation. Low flow regulated by Shoshone power plant 6 miles 

above station. Records of water analyses for the water year 1947 are given in WaterSupply Paper 1102.

Discharge, in second-feet, water year October 1946 to September 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.

1,130

952

963

1,110

1,020

1,260

1,170

890

985

996

985

1,070

1,060

1,200

996

1,200

1,230

1,280

1,370

1,220

1,200

1,030

1,250

1,370

1,400

1,380

1,310

1,060

8 SO

1,060

1,270

Nov.

1,310

87O

1,120

890

870

963

985

1,040

1,060

1,020

803

821

910

776

86O

910

821

724

732

692

840

1,120

1,060

1,460

1,380

1,340

1,310

1,340

1,350

1,350

-

Dec.

1,350

1,220

1,080

1,320

1,310

1,290

1,370

1,200

1,370

1,270

1,220

1,280

1,340

1,370

1,390

1,400

1,320

1,070

1,040

1,170

1,190

1,140

1,250

1,330

1,370

1,390

1,390

1,450

1,160

996

920

Jan.

830

1,040

996

910

900

952

974

910

900

776

776

840

850

803

749

676

604

639

724

785

941

794

920

840

860

794

821

920

963

9OO

7OO

Feb.

684

716

974

1,010

1,010

1,070

1,110

1,110

900

840

1,080

1,040

1,O7O

1,080

1,O4O

996

1,160

860

920

840

830

941

1,150

1,2£0

996

676

803

941

_

-

Month

October ....................................

November ......................... .........

December. ..................................

Calendar year 1946 .................. ...

January .................................. .

February .................... ....... . . ...

March. .....................................

April .....................................

May. ......................................

June . ................................. ...

July.... ............ .................. ...

August ................. ........ . .....

September. ...................... ......

Water year 1946-47 ......... ............

liar.

639

708

776

653

660

930

821

716

812

653

646

910

996

660

611

611

676

692

9OO

1,590

1,580

1,610

1,820

1,920

1,620

1,580

1,560

1,570

1,630

1,840

2,060

Apr.

1,990

:

i

,820

,980

,190

2,120

1,850

1

1

1

,700

,770

,800

1,580

1,500

1

1

1

,520

,410

,120

1,190

1,850

2

1

2

1

2

3

3

3

2

2

2

2

2

2

Secondfoot-days

35,277

30,727

38,966

777,621

26 ,087

27,047

34,450

62,120

245,060

305 45o *-, 

74,040

40,051

1,140,105

,O1O

,94O

,180

,980

,130

,020

,170

,060

,520

,220

,440

,440

,780

,84O

-

May

3.O6O

3,78O

5,380

7,110

8,500

9,430

9,910

10,600

11,700

12,100

12,100

11,200

10,200

9,110

8,180

7,740

7,230

6,810

6,930

7,470

7,530

7,470

7,930

7,470

6,750

6,60O

6,810

7,170

7,200

6,190

5,400

Maximum

1,400

1,460

1,450

9,080

1,040

1,200

2,O6O

3,170

12,100

13,500

11 , 9OO

3,270

1.8OO

13,500

June

5,400

6,190

7,080

8,150

8,280

7,710

7,900

9,300

10 , 9OO

11,900

12,400

12,500

11,600

10,400

9,560

9,500

9,780

10,100

10,600

11,400

13,300

13,500

12,800

11,600

10,600

10,000

1O.OOO

10 , 300

11,200

11,500

Minimum

86C

692

920

692

604

61]

1,120

3,060

5,400

3,260

1,520

758

604

July

11,900

11,400

10 , 900

1O.7OO

10 , 3OO

10,100

10,000

9,720

9,680

10,000

9,200

8,440

7,820

7.O3O

6,740

6,300

6,090

5,950

6,400

5,450

5,000

4,760

5,150

4,950

4,630

4,320

3,990

3,540

3,430

3,680

3,260

Aug.

3,270

3,

3,

3,

B60

330

220

2.7OO

3,090

2,

2 ,

2,

J70

730

580

2,800

2,220

2,

2,

2,

520

50

510

2,440

2,360

2,

1,

2,

90

330

L30

2,370

2,060

2,C

2,C

lit

)30

)BO

60

1,700

1,520

1,<

l.S

1,<

l.E

»30

>70

)OO

60

1,700

Mian

1 138

l!o24

1,257

2,130

842

QR6

1,111

2,071

10 ! 180

7,124

1^335

3,124

Sept.

1*, 310

758

803

1,070

1,260

1,250

1,210

1,260

890

1,330

1,510

1,760

1,800

1,720

1,640

1,580

1,500

1,470

1,500

1,53(3

1,460

1,290

1 , 390

1,340

1,330

1,380

1,280

1,140

1,060

1,230

-

Runoff in 

acre- feet

69,970

60,950

77,290

1,542,000

51,740

53,650

68,330

123,200

486 , 1OO

605,900

146^900

79,440

2,261,000

Note.- No gage-height record July 6 to Aug. 8; discharge 

" "~ and records for station at Dotsero.

computed on basis of 1 discharge measure-
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., 374 miles upstream from Plateau. Creek and 6.7 miles northeast of Cameo.

Drainage area.- 8,055 square miles.

Records available.- October 1933 to September 1947.

Average discharge.- 14 years, 4,056 second-feet.

Extremes.- Maximum discharge during year, 26,400 second-feet June 22 (gage height, 9.75 

reet); minimum daily, 1,000 second-feet Jan. 18.

1933-47: 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 periods of Ice effect or no gage-height 

record, which are fair. Many diversions above station for irrigation. Records of 

water analyses for the water year 1947 are given in Water-Supply Paper 1102.

Rating tables, water year 1946-47, except period of ice effect

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

(Shifting-control method used Nov. 25 to Dec. 29, Hay 1O)

Oct. 1 to Hay 10 Hay 11 to Sept. 30

1.8 1,540 6.1 10,540 1.8 l,42o 6.6 11,7OO 

* 2.3 2.2QO 7.3 14,700 2.5 2.37O 7.8 16,400 

3.7 4,560 8.5 20,300 4.0 4.86O 9.5 24,900 

4.5 6,180 5.0 7,100

Discharge, in second-feet, water year October 1946 to September 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.

1,590 

2,110 

1,950 

1,800 

1,800

1,850 

2,000 

1,950 

1,900 

1,900

1,900 

1,900 

1,950 

1,950 

1,900

1,950 

2,000 

2,100 

2,200 

2,200

2,100 

2,000 

2,000 

2,100 

2,250

2,300 

2,200 

2,100 

1,950 

1,800 

1,950

Nov.

2,050 

,850 

,700 

,750 

,650

,650 

,70O 

,750 

,800 

,700

,550 

,500 

,550 

,600 

,600

,550 

,500 

,400 

,400 

,400

,400 

,600 

,800 

,280 

,180

,120 

,040 

,060 

,060 

,060

Dec.

2,050 

2,040 

1,940 

1,710 

2,010

 1,940 

2,100 

2,110 

1,910 

2,010

1,900 

1,940 

2,010 

2,040 

2,050

2,040 

1,990 

1,880 

1,700 

1,740

1,870 

1,900 

1,900 

2,020 

2,010

2,040 

2,140 

2,140 

2,050 

bl,950 

bl,650

Jan.

bl,450 

bl,350

,600 

,550 

,500

,450 

,450 

,500 

,450 

 ,300

,250 

,250 

,350 

,400 

,300

,200 

, ,050 

,000 

,050 

,150

,250 

,350 

,350 

,400 

,350

,350 

,350 

,350 

,400 

,400 

,400

Feb.

,200 

,150 

,200 

,500 

,550

,550 

,650 

,650 

,500 

,400

,400 

,600 

,600 

,600 

,600

,550 

,600 

,700 

,400 

,450

,350 

,350 

,450 

,600 

,700

,450 

,250 

,400

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1946 ....................

ary

ember ......................... .......

ter year 1946-47 ... ......... .......

Mar.

1,450 

1,100 

1,200 

1,300 

* 1,150

1,200 

1,450 

1,300 

1,250 

1,350

1,200 

1,200 

1,300 

1,500 

1,300

1,200 

1,150 

1,300 

1,700 

2,380

2,400 

2,460 

2,770 

2,820 

2,580

2,200 

2,170 

2,170 

2,230 

2,550 

2,660

Apr.

2 

2 

2 

2

2

2 

2 

2

2

2 

1

2

2 

2

3 

3 

4 

4 

4

3 

3 

3 

3 

4

Secondfoot-days

61,650 

52,250 

60,780

1,287,760

41,550 

41,400 

53,990 

89,510 

407,900 

517,890 

369,300 

120,810 

72,010

1,889,040

,800 

,640 

,630 

,820 

,920

,66O 

,340 

,290 

,240

,230

,220 

,100 

,100 

,800 

,000

,120 

,720 

,630 

,920 

,970

,040 

,760 

,800 

,820 

,420

,880 

,580 

,930 

,970

,160

May

4,420

5,300 

7,880 

11,400 

14,700

16,400 

17,200 

18,000 

19,700 

2O.1OO

20,200 

18,800 

16,000 

14,300 

12,900

12,300 

11,600 

11,300 

11,100 

11,300

12,000 

12,800 

13,200 

12,800 

11,600

11,500 

11 , 900 

12,800 

12,900 

11,400 

10,100

Maximum

2,300 

2,280 

2,140

17,400

1,600

1,700 

2,820 

4,820 

20,200 

24,700 

20,400 

4,960 

3,180

24,700

June

9,690 

10,100 

11,900 

14,000 

14,800

13,200 

13,400 

16,500 

20,400 

21,000

20,000 

20,500 

18,400 

16,600 

14,700

14,000 

15,700 

17,000 

18,200 

19,700

23,000 

24,700 

21,600 

19,400 

17,600

16,900 

17,200 

18, lot) 

19,400 

20,200

Minimum

1,590 

1,400

1,650

1 , 300

1,000 

1,150 

1,100 

1,800 

4,420 

9,690 

5,280 

2,700 

1,460

1,000

July

20,300 

20.4OO 

19,800 

19,300 

19,500

18,200

17,300 

16,800 

16,200 

16,700

15,300 

14,100 

12,700 

11,700

11,000

10,900 

9,930 

9,570 

9,570 

9,000

7,880 

7,120 

6,550 

6,850 

7,120

6,750 

6,350 

5,970 

5,480 

5,680 

5,280

Aug.

4,960 

4,880 

4,790 

4,810 

4,250

4,940 

4,730 

4,570 

4,410

4,500

4,500 

3,750 

4,450 

4,390 

4,100

3,780 

3,850 

3,670 

3,350 

3,910

3,740 

3,480 

3,500 

3,450

3,030

2,740 

2,7OO 

2,970 

2,950 

2,870 

2,790

Mean

1,989 

1,742 

1,961

3 528

1,340 

1,479 1,7-tr

2,984 

13,160 

17.E60 

11,910 

3,897 

2,400

5,175

Sept.

2,400 

2,070 

1,460 

1,740 

2,020

2,120 

2,020 

2,010 

2,000 

2,080

2,550 

3,050 

3,06O 

3.180

3,020

2,890 

2,810 

2,650 

2,840 

2,810

2,810 

2,570 

2 , 380 

2,380 

2 , 310

2,280

2,260 

2,150 

2,040 

2,050

Runoff in 

acre feet

122,300 

103,600 

12O , 600

2,554,000

82,410 

82,120 

107 ,100 

177 ,500 

809,100 

1,027,000 

732 ,500 

239,600 

142,800

3,747,000

* Winter discharge measurement made on this day." 

b Stage-discharge relation affected by ice. 

Note. - Ho gage-height record Oct. 3 to Nov. 23, Jan. 3 to Har. 19, Apr. 14, 15 (st.ii .--discharge 

relation affected by ice during part of period); discharge computed on basis of records for Colorado 

River and Roaring Pork at Olenwood Springs.
COLORADO RIVER MAIN STEM 19

Colorado River near Cisco, Utah

Location.- Water-stage recorder, lat. 38°49', long. 109°18', in NW£ sec. 17, T. 23 S. , R. 

24 K., 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 1947.

uctober 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.- 29 years (1913-17, 1922-47), 8,193 second-feet.

Extremes.- Maximum discharge during year, 40,300 second-feet June 22 (gage height, 12.85 

reet); minimum daily, 2,000 second-feet Jan. 18-20.

1914-17, 1922-47: 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 125,000 second-feet July 4, 1884, from flood record 

at Fruita.

Remarks.- Records excellent except those for periods of ice effect or no gage-height

record, which are fair. Diversions above station for irrigation and power, including 

transmountain diversions. Records of water analyses and sediment loads for the water 

year 1947, are given in Water-Supply Paper 1102.

Discharge, in second-feet, waler year October 1946 to September 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

2,190

3,210

3,970

3,070

3,250

4,010

3,360

3,300

3,380

3,250

3,260

3,400

3,400

3,430

3,260

3,400

3,260

3,640

3,580

3,580

3,580

3,380

3,320

3,120

3,340

3,360

3,360

3,340

3,360

3,380

3,250

Nov.

3,830

3,990

3,890

3,340

3,320

3,250

3,210

3,580

3,930

3,640

3,530

3,340

3,030

3,070

3,250

3,250

3,320

3,260

3,030

2,890

2,940

2,990

a3,300

a3,800

a4,200

4,130

3,780

3,550

3,660

3,700

-

Dec.

3,680

3,600

3,570

3,510

3,320

3,490

3,600

3,810

3,780

3,510

a3 , 400

a3,250

a3,150

a3,250

a3,350

a3,400

3,490

3,450

3,160

2,710

a2,900

a3,100

*a3,300

33,300

a3,400

a3,500

a3,600

a3,700

a3,600

a3,250

*2,850

Jan.

,200

,100

,200

,300

,400

» ,450

,550

,550

,550

,600

,300

,300

,300

,400

,500

,300

,100

,000

,000

,000

,200

,300

,400

,450

,500

,500

,450

,500

,600

,600

,600

Feb.

2,450

2,200

2,200

2,500

2,650

2,750

2,800

2,800

2,750

2,600

2,600

2,850

2,900

2,900

2,900

2,900

3,000

3,100

2,900

2,650

2,550

2,450

2,550

2,850

*2,870

2,830

2,710

2,610

_

_

-

Month

October. ......................... .........

November ......................... .........

December. ..................................

Calendar year 1946 ......................

January .................................. .

February. ............................ .....

March. .....................................

April. ........................ ...... .....

May. .......................................

June .................. ....................

July. .................... .................

August .....................................

September. .................................

Water year 1946 47 . ............... ....

Mar.

2,710

2,660

2,370

2,320

2,540

2,490

2,420

2,590

2,540

2,340

2,590

2,560

2,500

2,590

2,620

2,440

2,370

2,390

2,690

3,030

3,430

3,850

4,330

4,930

4,890

4,270

3,600

3,490

3,510

3,870

4,390

Apr.

4,740

4,970

4,680

4,720

5,040

4,740

4,190

3,470

3,280

3,450

3,570

3,400

3,190

3,160

2,850

2,800

3,700

4,890

5,230

5,830

5,830

6,880

9,190

9,900

9,160

7,950

6,790

5,810

7,530

7,100

-

Secondfoot days

103,990

104,000

104,980

2,046,510

73,200

75 , 820

95 320

159 -,040

717,640

803,400

496,390

186,170

130,600

3,050,550

May

7,200

9,040

13,600

20,000

26,200

29,700

32,100

32,700

32,600

34,600

34,300

34,200

29,900

25,8OO

24,200

22,500

21,400

19,800

19,200

19,100

20,100

21,200

23,000

23 , 200

21,000

19,100

19,800

21,000

22,300

21,000

17.800

Maximum

4,010

4,200

3,810

26,600

2,600

3,100

4,930

9,900

34,600

38,100

28,000

8,900

"6,220

38,100

June

16,500

16,200

17,500

21,300

24,300

23,400

21,200

22,700

28,400

334,500

335,800

31,800

31,500

27,800

24,800

22,400

22,700

25,600

27,200

27,300

30,300

38,100

37,900

33,000

28,500

26,000

25,600

26,300

26,900

27,900

-

Minimum

2 19i

2',89C

2.71C

1.65C

2,OOC

2,20r

2,32f

2,80'

7,EOf

16.20C

6,17'

4.91C

3.01C

2,oor

July

28.OOO

27,400

26,500

25,600

25,600

25,300

23,400

23,300

22,400

22,000

21.60C

19.40C

'17.70C

'15.90C

14.40C

14.40C

14.90C

13.10C

12.40C

11,900

10.90C

f9,66C

3 , 100

9.66C

9.24C

3.56C

7,740

7.23C

6,84C

6.17C

6,29C

Aug.

5,720

5,390

5,280

5,190

5,920

5,280

6,500

6,040

5,810

6,080

7,180

6,380

5,520

6,520

6,380

5,900

5,390

5,450

5,470

5,250

5,940

8,900

7,660

7,980

a7,300

6,220

5,470

5,140

4,910

5,000

5,000

Mean

) 3,354

) 3,467

) 3,386

1 5,607

2,361

2,703

3,075

5,301

1 . 23,150

10 ' 010

f , O'JS

3 4,353

1 8,353

Sept.

4,870

4,390

3,890

3,450

3,160

3,400

3,530

3,530

3,410

4,090

4,870

5,740

6,220

5,900

5,780

5,670

5,540

5,060

4,740

4,970

4',910

4,810

4,410

4,070

3,830

3,550

3,360

3,300

3,140

3,010

-

Runoff in 

acre feet

206 , 300

206,300 .

208,200

3,978,000

145,200

150,400

189,100

315,500

1,423,000

1,594,000

984,600

369,300

259,000

6,051,000

Note.- Stage-discharge relation affected by ice Dec. 31 to Feb. 23.
20 COLORADO RIVER MAIN STEM

Colorado River at Lees Ferry, Ariz.

Location.- Water-stage, recorder, lat. 36°51'45", long. 111°36 I 15", in NE-J-SE^ sec. 13, 

T. 40 N., R. 7 E., at head of Marble Gorge at Lees Perry, just upstream from Parla 

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. Datom 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 1947. Also calendar year estimates 1895- 

iyiu, ana monthly estimates January 1911 to May 1921, published in Water-Supply 

Paper 918.

Average discharge.- 26 years (1921-47), 17,350 second-feet.

Extremes.- Maximum discharge during year, 80,400 second-feet May 13 (gage height, 16.26 

reet); minimum, 3,180 second-feet Jan. 9 (gage height, 6.20 feet).

1921-47: Maximum 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), f^om rating 

curve extended above 120,000 second-feet, verified at 320,000 second-fee*-, by comparison with rating curve for station near Grand Canyon.

Remarks.- Records excellent. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1346 to September 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

28

Oct.

4,860

5,260

5,050

4,840

4,920

5,810

7,490

7,840

6,980

7,320

7,920

7,150

6,840

6,810

6,700

6,600

6,640

6,670

6,640

6,540

6,500

6,470

6,700

6,770

6,980

6,910

6,570

6,370

6,600

6,910

7,320

Nov.

7,040

7,150

8,850

7,950

7,770

8,660

8,540

8,240

8,470

8,850

8,970

8,580

8,970

8,280

7,880

7,990

7,490

7,460

7,660

7,420

7,150

7,180

7,010

6,500

6,570

6,640

7,040

7,660

8,6BO

8,620

-

Dec.

8,130

7,770

7,630

7,560

7,560

7,520

7,700

7,920

8,060

7,840

7,950

8,210

8,240

8,430

8,100

7,600

7,010

6,840

7,350

7,520

7,380

7,250

6,670

6,080

5,810

5,600

5,580

5,630

5,900

6,280

*7,010

Jan.

7,250

7,040

b5,930

b*,740

b3.,900

b3,490

*b3,380

b3,240

b3,200

»b3,640

b3,990

b4,250

4,490

*4,920

4,970

b4,690

b4,460

4,340

b4,340

b4,080

*b3,740

b3,790

b3,900

b3,830

4,040

4,390

 4,620

4,890

5,180

5,430

5,630

Feb.

5,810

5,550

5,460

5,520

5,520

5,630

5,780

5,840

5,960

6,440

6,640

6,640

6,500

6,500

6,470

6,370

6,470

6,740

6,940

6,810

6,740

6,840

6,940

6,870

6,810

6,910

7,350

7,770

_

_

-

Month

November. ..................................

December. ..................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

May. .......................................

July......... ..............................

September ..................................

Water year 1946-47 ......................

Mar.

8,510

9,080

8,540

8,170

7,920

7,600

7,080

6,500

6,310

6,470

6,540

6,540

6,700

6,910

6,840

6,740

6,600

6,670

6,870

6,840

6,700

6,770

20,900

22,500

20,900

20,300

20,600

20,100

18,200

15,700

13,800

Apr.

12,800

12 , 2OO

11,900

12,400

13,700

14,300

13,700

13,300

12,900

13,000

12 , 300

11,300

10 , 300

9,560

9,040

8,810

8,770

8,810

8,700

8,390

8,660

10,200

12,000

14,400

16,900

21,300

21,000

22,400

21,300

19,000

-

Secondfoot days

224,130

4,411,880

139 780

329 900

294,480

6,802,180

May

17,800

17,900

16,900

16,900

20,100

35,200

47,400

56,800

62,200

64,800

68,900

74,600.

77,300

76,900

70,800

66,900

64,500

61,000

56,500

52,300

49,700

48,600

49,000

50,500

52,500

52,600

49,300

47,300

48,100

49,000

51,200

Maximum

8,430

49,200

22 500

77 300

13,800

77,300

June

49,700

47,200

45,800

44,600

44,800

48,300

51,700

50,100

47,700

50,800

57,800

63,200

64,900

65,200

63,000

58,300

54,700

52,100

50,500

50,500

51,500

54,000

59,800

67,600

67,300

64,100

61,500

57,800

54,200

52,500

-

Minimum

5,58

3,51

3 20

7,63

3,20

July

50,900

50,400

49,300

47,700

46,100

44,100

43,000

41,800

39,100

38,300

37,100

35,800

36,100

33,600

31,800

29,900

28,000

26,700

27,200

25,700

23,500

22,500

21,900

20,500

18,900

18,300

18,000

17,400

16,600

15,800

15,200

Aug.

14,800

14,000

13,600

13,200

21,400

17,100

13,200

13,300

12,300

14,400

14,800

13,700

15,100

15,200

14,400

13,500

14,000

22,600

29,000

20,600

21,700

32,200

38,400

45,000

38,100

25,900

20,800

18,700

16,000

14,600

15,000

Hear

3 7,230

3 12,090

3 9,816

3 18.640

Sept.

13,800

12,900

12,300

11,900

11,300

10,200

9,520

8,540

7,840

8,170

9,000

9,560

8,100

7,950

9,000

10 , 300

10, 100

9,720

9,560

8,970

9,280

12,500

11,000

10,500

10,000

9,600

8,970

8,320

7,950

7,630

Runoff in 

acre- feet

444,600

8,751,000

584,100

13,491,000

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
COLORADO RIVER MAIN STEM 21

Colorado River near Grand Canyon, Ariz.

Location.- Two water-stage recorders, lat. 36°05 I 55", long. 112 0 05'30", at Steibab 

Bridge, a quarter of a mile upstream from Bright Angel Creek, 11 miles by trail 

northeast of Grand Canyon, Coconino County, 26 miles downstream from Little Colorado River, and 267 miles upstream from Hoover Dam. Datum of gages is 2,418.7 feet 

above mean sea level, preliminary datum of 1929.

Drainage area.- 137,800 square miles.

Records available.- October 1922 to September 1947. Gage-height records collected lj 

miles downstream, 1908-13, published in reports of U. S. Weather Bureau.

Average discharge.- 25 years, 17,710 second-feet.

Extremes.- Maximum discharge during year, 80,100 second-feet May 14 (gage height, 23.10 

reet)~; minimum, 3,550 second-feet Jan. 10.

1922-47: Maximum discharge, 127,000 second-feet July 2, 1927 (gage height, 29.25 

feet); minimum, 700 second-feet Dec. 28, 1924 (gage height, -0.70 foot).

Maximum discharge known, 300,000 second-feet about July 8, 1884 (computed on 

basis of flood studies at Lees Ferry). Crest discharge of flood of June 19, 1921, 

220,000 second-feet (gage height, 37.5 feet, from floodmarks), from rating curve 

extended above 120,000 second-feet by logarithmic plotting.

Remarks.- Records excellent. Diversions above station for irrigation. Records of water 

analyses and sediment loads for the water year 1947 are given in Water-Supply Paper 

1102.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

6

11

16

18

21

&O

25

26

Oct.

5,160

5,390

5,630

5,320

5,160

5,450

6,170

7,930

7,160

7,580

8,120

7,400

7,140

6,950

6,820

6,860

7,130

7,190

Nov.

7,670

7,420

7,600

8,890

8,040

8,200

8,870

8,680

8,670

8,890

9,230

9,100

8,970

9,230

8,590

8,330

7,840

8,350

7,980

7,740

7,700

7,380 

6,950

6,940

8,760

9,110

9,410

~

Dec.

8,970

8,620

8,310

8,190

8,170

8,070

8,010

8.O60

8,090

8,070

8,090

8,280

ff,410

8,440

8,430

8,120

7,720

7,380

7,340

7,580

7,640

7,580

7,420

6,960 

6,410

6,090

5,980

6,030

6,120

6,470

6,880

Jan.

7,440

7,560

7,140

6,030

4,950

4,380

4,070

4,120

3,880

3,600

4,050

4,400

4,570

5,070

5,590

5,570

5,590

5,020

4,700

4,630

4,300

3,950

3,950

3,980 

3,950

4,220

4,600

4,960

5,310

5,530

5,710

Feb.

5,950

6,12C

5,910

5,84C

5,750

5,740

5,74C

5,910

5,99C

6,120

6,480

6,770

6,780

6,760

7,000

6,950

6,860

7,000

7,200

7,310

7,300

7,340

7,360

7,360 

7,360

7,250

7,370

7,600

_

-

-

Month

December. ..................................

Calendar year 1946 ......................

March.. ....................................

April ......................................

May. .......................................

September ..................................

Water year -1946-47 ......................

Mar.

8,170

9,050

9,210

8,760

8,360

8,110

.7,670

7,180

6,660

6,580

6,770

6,800

6,820

7,100

7,130

6,940

6,830

6,710

6,890

7,060

7,070

7,070

9,360

21,400 

21,500

20,800

20,500

20,800

19,700

17,300

15,100

Apr.

13,600

12 , 700

12,300

12,000

12,600

13,800

13,900

13,700

13,300

13,200

13,000

12,200

11,400

10,700

10,000

9,510

9,260

9,020

8,890

8,750

8,440

8,970

10,700

12,700 

14,900

19,000

21,500

22,100

22,900

20,900

-

Seccndfoot-days

211 150

248 210

235,930

4,597,870

152 820

395 940

322,820

6,924,890

May

18,600

18,100

18,100

17,800

18,500

27,800

41,900

53,300

59,500

62,800

65,200

71,800

76,400

77,400

72,700

67,800

65,000

62,500

59,200

55,200

51,500

49,500

49,100

50,200 

51,800

52,600

51,100

47,300

47,000

48,000

49,200

Maximum

8,970

48,500

21 500

17,100

77,400

June

49,900

47,300

45,700

44,600

43,800

46,100

49,800

50,900

48,100

48,800

54,300

61,800

65,000

63,600

63,300

58,700

54,900

52,100

49,500

49,100

49,500

52,500

56,400

63,400 

67,400

64,300

62,100

58,800

55,400

53,100

-

Minimum

5,98C

4,37C

8,20C

3,60C

July

51,400

50,300

49,300

47,800

46,300

44,700

43,300

42,200

40,000

38,000

37,500

36,000

35,800

35,000

33,000

30, 900

28,800

27,200

26,400

26,500

24,400

22,800

22,000

21, 100 

19,500

18,500

18,300

18,100

17,400

16,400

15,500

Aug.

15,000

14,400

13, 700

13,500

17,700

19,300

14,000

13,200

20,000

15,400

15,900

16,600

15,200

16,600

17,700

15, 300

14,900

19,300

31,700

25,300

23,300

32,300

38,500

48,600 

49,500

33,200

24,100

23,200

19,700

17,000

15,900

Mean

) 7,611

) 12,600

) 10,760

) 18,970

Sept.

17,100

15,800

14,000

13,500

13,000

11,600

10,800

10,000

9,160

8,680

9,260

10, 600

10,300

8,860

8,940

9,920

10, 800

10,400

10,100

9,700

9,310

11,000

12,400

11,300 

10,600

10,200

9,100

8,200

Runoff in 

acre- feet

468,000

9,120,000

3 233 000

1 329 000

640,300

13,740,000
22 COLORADO RIVER MAIN STEM

Lake Mead at Hoover, Dam, Aris.-Nev.

Location.- Water-stage indicator, 1st. 36"00'59", long. 114°44'10", in SWi s?c. 3,

T. 30 N., R. 23 W. Gila and Salt River meridian, in center of Hoover Dam on Colorado 

River. Datum of gage is 0.43 foot (revised) above mean sea level, datum of 1929, 

based on levels of 1940.

Drainage area.- 167,£ square miles.

Records available.- February 1935 to September 1947.

Extremes.- Maximum contents during year, 21,924,000 acre-feet Sept. 2 (gage height, 

l,iau.~24 feet); minimum, 16,218,000 acre-feet Apr. 25 (gage height, 1,133.91 feet). 

1935-47: Maximum contents, 27,790,000 acre-feet July 89, 30, 1941 (gage height, 

1,220.45 feet); minimum (since 1940), that of Apr. 25, 1947.

Remarks.- Reservoir is formed by concrete arch-gravity type dam; storage began Feb. 1, 

1935; 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 feec (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.

Usable contents at 12 p.m., In thousands of acre-feet, water year October 1946 to September 1947

Daj

1

2

3

4

6

7

10

11ia

13

14

15

16

IT

11

It20

21

28

28

24

28

28

27

28

29

30

31

Dot.

18,988

18,975

18,951

18,938

18,920

18,920

18,901

18,877

18,858

18,840

18,821

18,809

18,803

18,791

18,766

18,741

18,729

18,710

18,698

18,691

18,679

18,655

18,643

18,625

18,607

18,595

18,583

18,571

18,571

18,565

18,547

Nov.

18,529

18,523

18,523

18,505

18,492

18,480

18,468

18,456

18,450

18,450

18,444

18,438

18,432

18,426

18,420

18,420

18,420

18,408

18,390

18,365

18,359

18,347

18,335

18,335

18,329

18,311

18,299

18,293

18,287

18,275

-

Dec.

18,281

18,269

18,257

18,245

18/233

18,215

18,209

18,203

18,197

18,179

18,161

18,149

18,131

18,125

 18,125

18,113

18,095

18,077

18,053

18,029

18,023

18,018

18,003

17,994

17,994

17,988

17,964

17,952

17,946

17,928

17,904

Jan.

17,898

17,881

17,857

17,839

17,833

17,809

17,786

17,768

17,745

17,715

17,697

17,686

17,656

17,633

17,603

17,574

17,550

17,533

17,527

17,498

17,468

17,445

17,416

17,392

17,363

17,351

17,323

17,294

17,265

17,230

17,207

Feb.

17,189

17,183

17,160

17,137

17, 114

17,091

17,062

17,051

17,034

17,010

16,994

16,970

16,948

16,930

16,924

16,918

16,896

16,878

16,856

16,839

16,816

16,804

16,804

16,788

16,764

16,742

16,713

16,690

_

_

-

Mar.

16,679

16,676

16,653

16,637

16,616

16,597

16,575

16,562

16,560

16,534

16,510

16,489

16,463

16,444

16,431

16,426

16,404

16,376

16,351

16,326

16,304

16,292

16,291

16,276

16,290

16,304

16,313

16,327

16,348

16,375

16,383

Apr.

16,380

16,378

16,373

16,363

16,366

16,374

16,371

16,357

16,358

16,353

16,350

16,349

16,358

16,351

16,341

16,327

13,313

16,302

16,296

16,294

16,274

16,258

16,237

16,226

16,218

16,226

16,245

16,256

16,266

16,283

-

Hay

16,293

16,294

16,303

16,319

16,318

16,316

16,334

16,385

16,453

16,561

16,672

16,770

16,876

16,995

17,105

17,209

17,311

17,421

17,509

17,585

17,651

17,716

17,768

17,841

17,916

17,984

18,047

18,112

18,168

18,235

18,309

June

18,386

18,450

18,503

'18,554

18,603

18,654

18,714

18,796

18,859

18,914

18,974

19,044

19,132

19,229

19,337

19,422

19,502

19,575

19,643

19,699

19,773

19,853

19,921

19,995

20,084

20,177

20,265

20,356

20,446

20,523

-

July

20,593

20,658

20,721

20,796

20,862

20,935

20,995

21,044

21,088

21,131

21,173

21,216

21,263

21,296

21,332

21,359

21,384

21,405

21,423

21,448

21,465

21,477

21,488

21,493

21,500

21,508

21,522

21,520

21,521

21,518

21,513

Aug.

21,502

21,503

21,512

21,502

1,493

1,492

1,497

1,495

1,490

1,518

1,522

1,520

1,518

1,516

1,513

1,521

1,536

1,529

1,532

1,589

1,603

1,618

1,655

1,705

1,776

1,828

1,856

1,871

1,883

1,897

1,909

Sept.

21,921

21,924

21,921

21,917

21,905

21,899

21,901

21,885

21,875

21,858

21,838

21,823

21,810

21,810

21,791

21,770

21,748

21,735

21,724

21,715

21,713

21,698

21,689

21,684

21,673

21,660

21,656

21,657

21,641

21,625

-

Monthly gage height and contents, water year October 1946 to September 1947

Date

Dec. 31... .................

Calendar year 1946. ......

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

Water year 1946-47. ......

Gage height 

Ifeetjt

1,148.55

-

1,178.02

-

Contents 

(acre-feet)

17,904,000

-

21,625,000

-

Change In contents 

during month 

(acre-feet)

-371,000

-1,816,000

-284,000

*+2,615,000

t Sage height at 12 p.m.

t Correction made to gage Aug. 20 Increased gage heights thereafter 

0.22 foot. No adjustment made on account of this correction.
COLORADO RIVER STEM ^ 

Colorado River below Hoover Dam, Ariz.-Nev.

Location.- Water-stage recorder, lat. 36°00 I 1S", long. 114°44'35", in SW-jire-J- see. 10, T.

 3D 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 gags 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 1947. Record of diversion for use in Boulder 

City-Las Vegas area, April 1942 to September 1947.

Average discharge.- 13 years (1934-47), 13,960 second-feet (regulated, but; not adjusted for 

storage in Lake Mead).

Extremes (regulated).- Maximum discharge during year, 28,500 second-feet Mar. 18 (gage

height, 49.YB feet) ; minimum, 4,350 second-feet Nov. 7 (gage height, 39.56 feet); minimum daily, 7,280 second-feet Mar. 30.

1935-47: Maximum discharge, 51,200 second-feet Feb. 13. 1939 (gage height, 54.96 

feet); no flow Feb. 10, 1935.

Remarks.- Records excellent. Flow completely regulated by Hoover Dam sine? Feb. 1, 1935 

(see preceding pige). Diversions above Hoover Dam for irrigation and industrial uses. 

Diversion by pumping from Lake Mead 6 miles above Hoover Dam to Boulder City-Las Vegas 

area for municipal and industrial use began Apr. 7, 1942. Records of water analyses 

for the water year 1947 are given in Water-Supply Paper 1102.

Cooperation.- Record of diversions to Boulder City-Las- Vegas area furnished by Bureau of 

Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

'6

T

9

10

11

12

13

14

18

16

IT

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Oot.

14,800

15,100

14,600

13,000

10,500

8,440

14,000

14,800

15,100

15,300

15,000

12,100

9,440

15,700

16,300

15,800

15,500

15,200

11,900

9,410

15,000

15,300

15,600

15,500

15,30ii

12,400

9,340

15,300

15,600

15,700

14., 800

Nor.

14,200

10,100

7,800

14,300

14,700

14,500

14,200

13,700

10,500

7,340

11,800

14,600

14,200

14,700

13,600

10,400

7,680

13,900

16,300

17,500

14,400

14,400

13,800

8,220

14,300

14 , 400

14,000

8,280

13,900

12,500

-

Oeo.

9 , 040

14,500

15,400

15,200

15 , 200

15,300

11,800

3,480

14,800

15,500

16,400

16,300

16,200

12,800

9,150

16,300

16,700

16,800

16,200

16,100

12,300

9,190

15,700

13,300

8,950

14,900

15,900

13,700

9,730

16,100

15,300

MDnth

October. .................

December. ................

Calendar year 1946.....

January .................. 

February. ................

March.. ..................

April. ...................

May..................... . 

June .....................

July. ....................

August. ..................

3ep-»mb~r. ...............

Water year 1945-47.....

Jan.

9,660

16,500

17,000

14,400

11,900

17,200

16,300

14,500

15,400

16,000

13,400

9,930

17,000

17,500

17,900

17,600

17,500

14,100

10,200

17,700

17,500

18,300

18,900

18,500

15,000

10,700

19, 030

19,200

19,100

19,100

18,900

Feb.

14,400

9,990

17,100

17,600

18,300

18,300

19,000

13,800

11,000

17,700

17,800

17,300

16,700

16,600

12,000

9,400

17,600

17,200

17,500

17,000

17,100

12,400

8,840

17,000

18,500

19,000

19,200

18,400

-

_

-

Secondfoot-days

431,830

384,220

433,240

5,336,560

. 495,850 

440,750

(U.flVJ

^",380

79,610

e;,oeo

So, IIP

LE,^10

5,376,940

Mar.

14,600

10,100

18,300

19,000

19,400

18,500

18,500

14,600

9 , 780

18,400

18,000

17,900

18,300

18.100

14,000

10,200

18,600

20,400

19,300

19,400

17,900

12,600

8,210

14,600

14,600

15,200

IS, 000

15,100

10,700

7,280

14,300

Maximum

16,300

17,600

16,800

21,500

19,200 

19,200

20,400

17,20n

19,130 

18,400

18,20n

17,9' i r' IT, :on

2U , 400

Apr.

15,700

15,000

15,600

15,800

12,3OO

8,620

15,400

16,300

16,200

15,900

15,400

11,300

8,290

15,100

15,900

16,400

16,300

15,600

11,600

8,830

17,000

17 , 200

16,700

16,600

15,600

11,900

8,240

16,000

16,300

15,800

Minimum

8,440

7,340

8, 480

6,910

9,660 

8,840

7,CBO

8,°40

7.73T 

8,860

3,820

7,tV:i

^Z£±_

7,280

May

15,600

17,400

12,800

9,370

17,400

17 , 600

17,700

17,700

17,100

10,000

7,780

17,000

18,200

18,600

18,600

19,100

12,700

9,280

18,200

18,300

18,500

18,900

18,100

12,100

9,330

18,500

17,800

16,800

18,100

11,200

9,850

June

9,950

18,400

17,800

17,500

17,800

17,800

14,300

9,500

17,500

17,600

17 , 500

17,600

17,600

14,200

9,320

16,700

17,100

17,000

17,000

16,400

12,500

8,860

16,500

16,700

16,700

17,500

17,900

13,200

9,030

15,600

Mean

13,930

12 , 810

13 , 98C

14,620

IS.Oiin 

15,950

15 5 41 '

14^430

15,470 

15,440

15,050

14,070

14.17T

14,730

July

15.2CO

15,7CO

16 , OCO

9,500

12,100

8,8"0

14,600

15,400

16,300

16,100

16.2CO

13,200

10,500

15.6CO

16,600

17,400

17, SCO

16, SCO

15, SCO

12,100

16,100

16.6CO

15.9CO

16.2CO

16, SCO

13.9CO

1O.400

16, SCO

17, SCO

18.2CO

17.7CO

Runoff in 

acre-feet

856,500

762,100

859,300

10,580,nni

983,500 

886,100

355 , 800

858, 6UO

951,300 

918,500

9:5,300

865,000

,345,100

10,^60,000

Aug.

17,900

14,200

9,840

16,700

17,300

16,400

15,400

15,300

11,600

7,620

14,300

15,600

15,500

16,000

15,700

11,400

8,580

15,200

15,400

14,500

14,200

14,600

12,300

9,060

16,200

16,800

16,400

15,300

15,200

11,800

9,810

Sept.

8,790

15.500

16,400

16,000

16,000

12,800

9,140

15,000

15,000

16,000

14,900

15,700

14,400

9,900

15,800

16,400

17,200

14,900

15,300

13,200

8,980

14,100

14,900

15,200

15,800

16,500

11 , 900

8,700

15,400

15,200

Diversions to

Boulder CityLas Vegas 

industrial area

(acre-feet)

373

347

5,392

367 

307

454

460

669 

671

G99

764

6,345

852060 O - 49 - 3
24 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 JM., R. 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 1947 (elevations only).

Extremes.- Maximum elevation during year, 475.11 feet May 14; minimum, 471.64 feet

1931-47: Maximum elevation, 475.86 feet Nov. 30, 1944; minimum, 466.53 feet 

Oct. 2, 1934, site then in use.

Remarks.- Flow completely regulated by Hoover Dam. (See two preceding pages.)

Elevation, In feet, water year October 1946 to September 1947

Daj

1

X

X

4

1

6

T

10

11

12

IS

14

16

16

IT

18

19

80

21

22

25

24

28

26

27

28

29

30

31

Dot.

474.03

474.63

474.62

474.58

474.15

473.84

473.30

473.37

474.29

474.35

474.20

474.05

473.75

473.35

473.70

474.21

474.05

473.81

473.66

473.30

473.00

473.55

473.99

473.80

473.56

473.40

473.21

473.19

473.49

473.84

473.70

Nov.

473.54

473.39

472.86

472.63

473.0?

473.57

473.60

473.53

473.33

472.94

472.51

472.66

473.49

473.41

473.31

473.32

473.01

472.74

473.01

473.88

474.00

473.65

473.64

473.81

473.01

473.29

473.96

474.02

473.41

473.21

-

Dec.

473.84

473.24

473.43

474.33

474.37

474.32

474.30

473.87

473.13

473.27

474.21

474.33

474.32

474.25

473.89

473.19

473.67

474.07

474.11

473.91

473.84

473.42

472.89

473.46

473.70

473.11

473 . 40

474.11

473.79

473.19

473". 50

Jan.

473.83

473.22

473.49

473.79

473.46

473.34

473.73

473.61

473.38

473.50

473.63

473.37

473.03

473.66

473.85

473.60

473.34

473.27

473.04

472.68

473.49

473.55

473.58

473.57

473.58

473.30

473.03

474.01

474.01

473.84

473.77

Feb.

473.72

473.33

473.00

473.76

473.86

473.88

473.75

473.70

473.21

472.93

473.64

473.95

473.90

473.80

473.79

473.31

473.10

473.78

473.99

474.00

473.90

473.88

 473.43

473.05

473.66

474.25

474.09

473.95

_

_

-

Mar.

473.68

473.35

472.95

473.75

474.18

474.20

474.02

474.09

473.70

473.09

473.91

474.14

474.08

474.06

474.15

473.75

473.35

474.07

474.55

474.41

74.35

74.31

73.71

73.06

73.49

74.09

74.15

474.25

474.16

473.51

472.66

Apr.

473.12

474.25

474.15

474.21

474.32

473.73

473.07

473.37

474.35

474.40

474.31

474.18

473.62

472.80

473.17

474.27

474.39

474.39

474.31

473.76

472.95

473.48

474.45

474.34

474.25

474.19

473.78

472.92

473.25

474.41

-

Hay

474.41

474.31

474.52

474.16

473.31

473.70

474.67

474.74

474.64

474.55

473.71

472.49

473.53

474.79

474.76

474.69

474.63

474.01

473.24

473.79

474.82

474.77

474.72

474.63

473.88

473.27

473.72

474.45

474.20

474.25

473.45

June

472.94

472.61

473.67

473.90

473.53

473.43

473.45

473.30

472.93

473.64

47^.23

474.11

474.01

473.95

473.65

473.33

473.71

474.38

474.33

474.32

474.25

473.85

473.38

473.55

474.54

474.47

474.41

474.42

474.06

473.33

-

July

473.41

474.24

474.25

474.26

473.62

472.86

472.97

473.06

474.17

474.31

474.15

474.08

473.69

473.16

473.33

474.31

474.45

474.33

474.10

474.00

473.60

473.58

474.24

474.14

474.04

474.08

473.83

473.15

473.25

474.32

474.30

Aug.

474.19

474.13

473.76

473.17

473.19

474.14

474.10

473.82

473.95

473.51

472.54

472.60

473.85

473.99

473.88

473.94

473.49

472.68

473.07

473.90

473.76

473.66

473.59

473.48

472.85

473.03

474.05

474.01

473.73

473.68

473.38

s«pt.

472.81

472.20

472.88

474.19

474.10

474.16

473.80

472.85

472.98

473.98

474.21

474.04

474.06

474.11

473.20

473.18

474.28

474.35

474.10

473.99

473.71

472.83

472.60

473.76

473.90

474.00

474.14

473.80

472.60

472.69

-
COLORADO RIVER MAIN STEM 25

Colorado River near Topock, Ariz.

Location.- Water-stage recorder, lat. 34°41'15", long. 114°27'45", in NW£ sei. 13, T. 

15 N., R. 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 1947.

Average discharge.- 17 years (1917-34), 20,260 second-feet (unregulated); 13 years

(1934-47), 13,470 second-feet (regulated, but not adjusted for storage in Lake Mead).

Extremes.- Maximum daily discharge during year, 18,700 second-feet Feb. 1; maximum elevation, 452.25 feet May 11; minimum daily discharge, 9,270 second-feet Nov. 12; 

minimum elevation, 448.61 feet Dee. 10.

1917-34 (unregulated): Maximum discharge probably exceeded 200,000 second-feet 

June 22, 1921; minimum, 1,480 second-feet Aug. 17, 1934.

1934-47 (regulated): Maximum discharge, 35,700 second-feet Jan. 29, 1942; maximum 

elevation, 452.37 feet July 19, 1943; minimum discharge, 375 spcond-feet Feb. 14. 1935: 

minimum daily, 422 second-feet Feb. 14, 1936.

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 secondfeet (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; no regulation between Hocver Dam and 

this station.

atlon, in feet, water year October 1946 to September 1947

Day

1

2

3

4

I

6

7

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Dot.

449.53

449.51

449.78

449.94

450 . 13

45O.O4

449.84

449.43

449.59

449.90

450.09

450.36

450.57

450.47

450.15

450.36

450.61

450.78

450.86

450.95

450.77

450.34

450.42

450.53

450.72

450.86

451.00

450.94

450.57

450.68

45O.86

Nor.

451.07

450 . 95

451.04

450.85

450.42

450.59

450.78

450.86

450.86

450.95

450.74

450.16

450.18

450.43

450 . 52

450.59

450.58

450.25

449.75

449.90

450 . 1O

450.36

450.36

450.42

450.39

449.98

450.11

450.26

450.30

449.83

Deo.

449.87

449.78

449.17

449.11

449.30

449.44

449.54

449.62

449.38

448.77

449.00

449.29

449.52

449.68

449.78

449.58

449.07

449.37

449.65

449.95

450.07

450.17

449.89

449.40

449.68

449.57

449.17

449.25

449.57

449.31

449.96

Jan.

449.48

449.49

449.00

449.43

449.75

449.64

449. L8

449.46

449.55

449.36

449.35

449.50

449.35

448.78

449.00

449. 4O

449.66

449.72

449.76

449.38

448.85

449.29

449.58

449.85

450.14

450.22

449.86

449.34

449.85

450.30

450.52

Feb.

450.58

450.61

450.23

449.55

449.82

450.02

450.26

450 . 45

450.56

450.13

449.62

449.91

450.18

450.28

450.28

450.27

449.84

449.27

449.65

449.93

450.15

450.20

450.18

449.68

448.95

449.41

449.92

450.28

_

-

Mar.

450.49

450.57

450.24

449.62

450.06

450.50

450.87

450.94

450.87

450.38

449.58

449.92

450.22

450.34

450.44

450.46

450.10

449.56

449.98

450.58

450.92

451.09

451.09

450.53

449.86

450.10

450.24

450.25

450.38

450.51

450.18

Apr.

449.52

449.83

450.05

450.11

450.28

450.39

450.14

449.70

449.98

450.24

450.45

45O.58

450.72

450.48

449.99

450.22

450.54

450.77

450.93

451.07

450.34

450.33

450.55

450 . 80

450.99

451.15

451.23

451.01

450.52

450. G7

Hay

450.87

450.99

451.09

451.34

451.25

450.84

451.03

451.32

451.55

451.81

452.07

451.65

451.05

451.26

451.46

451.69

451.86

452.02

45L.59

450.98

45L.23

45L.53

451.77

451.98

452.07

451.65

451.16

451.29

451.59

451.76

451. 9O

Juno

451.64

451.14

450.74

451.13

451.42

451.62

451.81

451.99

451.86

451.36

451.35

451.47

451.64

451.76

451.94

451.75

451.19

451.06

451.25

451.39

451.34

451.56

451.38

450.83

450.93

451.15

451.24

451.46

451.71

451.59

July Aug.

451.15 451.91

451.18 451.98

451.31 452.01

451.48 451.75

451.68 451.33

451.36 451.30

451.12 451.46

450.71 451.50

450.79 451.53

450.97 451.62

451.18 451.26

451.37 450.57

451.55 450.67

451.49 450.85

451.13 451.02

451.21 451.10

451.46 451.13

451.74 450.71

451.80 450. LO

451. 8O 45O.25

451.85 450. 5"

451.59 45O.51

451.61 450.48

451.68 450.49

451.83 450.28

451.88 449.79

451.99 450.13

451.78 450.58

451.46 450.84

451.54 450.82

451.76 450.89

Sept.

450.74

450.42

450.03

450.31

450. 7O

450.88

451.14

450.97

450.39

45O.34

450.38

450.54

450.61

450.78

450.82

450.46

450.59

450.86

451.05

451.08

451.06

450.86

450.29

450.18

450.29

450.45

450.63

450.86

450.66

450.13

-
COLORADO RIVER MAIN STEM

Discharge, In second-feet, of Colorado Rlv Topock, Arlz., water year October 1946

Day

1

2

3

4

5

6

7

8

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 , 900

1 1 , 800

13,000

13,800

14,000

15,100

11,400

9,640

11,200

12,900

13,800

14,500

14,400

15,000

11,100

13,100

14,500

15,200

15,600

15,100

13,100

11,200

12,700

13,300

14,500

14,900

14,700

13,400

11,400

13,100

14,300

Nov.

15,200

15,000

13,900

11,400

9,280

11,900

13,300

14,000

14,300

13,700

11,800

9,270

11,400

13,500

14,400

14,700

13,900

11,900

9,660

11,900

14,200

16,200

15,500

14,700

13,700

10,800

12,700

13,500

13,500

11,000

-

Dec.

12,200

12,400

10,800

12,100

13,600

14,200

14,600

14,600

13,300

11,000

12,300

13,900

15,200

15,700

15,500

14,100

11,800

13,800

15,400

16,200

16,400

1S.1OO

13,900

11,600

13,500

13,600

11,400

13,300

15,300

14,500

12,500

Jan.

14,200

14,800

12,700

14,900

16,600

15,700

14,100

15,800

16,500

15,600

15,300

16,100

15,000

12,900

14,700

15,600

16,200

16,400

16,400

15,100

13,400

15,700

16,900

17,700

18,200

17,700

16,000

14,200

16,900

18,300

18,600

Feb.

16,700

18,300

16,200

13,603

15,900

17,200

17,800

18,100

17,900

15,600

15,700

16,000

17,300

17,400

17, 100

16,500

14,000

12,100

15,100

16,700

17,300

17,400

17,000

14,600

11,800

14,700

16,800

17,500

_

-

Month

October .............................

November. ........................ ......

Decembe r .............. ........... ........

Calendar year 1945 ......................

January. ................................. .

February ..................... . . .... .....

March . . . . .................. .............

April ............. .................. ....

May...................... .................

June ......... ................ . ... .....

July. ... . ....... .............. .........

August. ... ............... . . ...........

September ..... ............................

Water year 194R-47 ...... . . ...........

Mar

17,700

17,500

15,900

13,400

16,100

17,800

18,500

18,300

17,900

15,900

13,300

15,500

16,700

17,100

17,200

16,800

15,000

12,800

15,500

17,600

17,900

17,900

17,000

14,000

11,000

12,900

13,500

14,300

14,900

14,300

11,700

Apr.

3,340

12,100

13,800

14,400

15,100

14,800

12,600

10,400

12,500

14,500

15,300

15,300

14,700

12,400

10,300

12,700

14,200

15,500

15,800

15,000

13,000

11,200

13,700

15,600

16,100

16,000

15,400

13,300

11,000

13,000

-

Secondfoot-days

409,140

390,210

424,900

5,159,260

489,100

452,300

485 , 900

409,040

482,400

449,700

439,600

438,700

400 , 500

5,271,490

May

14,803

15,400

15,400

15,900

14,400

12,000

13,900

16,000

17,000

17,200

16,900

13,600

11,200

13,900

16,500

17,900

18,300

18,100

15,200

12,200

14,400

16,700

17,700

18,100

17,800

14,700

12,100

15,000

16,600

16,700

16,300

Maximum

15,600

16,200

16,400

20 , 700

18,600

18,700

18,500

16,100

18,300

17,400

16,600

17,100

15,500

18,700

June

13,600

±1,400

11,000

14,500

16,600

17,400

17,300

17,000

15,100

12,100

14,300

16,200

16,900

16,900

16,800

14,800

11,900

13,700

15,400

15,900

16,600

16,200

13,900

11,600

13,200

15,000

15,900

16,500

16,900

15,100

-

Minimum

9,640

9,270

10,800

7,870

12,700

11,600

11,000

9,540

11,200

11,000

li i , 600

10,500

10 , 100

9,271"

July

12,100

13,200

14,300

14,900

15,000

12,300

11,800

10,600

12,300

13,700

14,700

15,200

15,300

13,800

12,100

13,100

14,600

15,800

16,500

16,40C

15,700

13,70f

14,200

15,300

15,500

15, BOXIS, BOO

14,600

12,300

13,700

15,400

Aug.

16,600

17,000

17,100

15,300

12,300

13,800

15,500

15,700

16,000

15,800

13,200

10,500

12,100

13,900

14,700

15,200

15,300

13,000

10,800

12,600

14,000

14,300

14,000

14,000

12,600

10,800

12,700

14,700

15,400

15,100

14,700

Mein

13,200

13,010

13,710

14,130

15,780

16,150

15,670

13,630

15,560

14,990

14,180

14,150

13,350

14,440

Sept.

12,900

11,100

10,100

12,500

14,200

14,400

14,300

12,900

11,000

12,200

13,400

14,400

14,500

14,600

14,200

11,900

12,800

14,500

15,500

15,300

14,600

13,500

11,500

12,100

13,300

14.10O

14,600

15,200

13,600

11,200

-

Runoff in 

acre-feet

811,500

774,000

842,800

10,230,000

970,100

697,100

963,800

311,300

956 , 800

892,000

871,900

370,100

7 9- 1, ion

LO, 460,000
COLORADO RIVER MAIN STEM

Havasu Lake near Parker Dam, Ariz.- Calif.

Location.- Water-stage recorder, lat. 34°19', long. 114°09' , in SW-J- sec. 28, T. 3 N., 

H. ay 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 elevation above mean sea level, datum of 1929.

Drainage area.- 178,800 square miles at Parker Dam. 

Records available.- July 1938 to September 1947.

Extremes.- Maximum contents during year, 691,600 acre-feet (by temporary use of flash- 

 boards) July 27 (elevation, 450.6d feet); minimum, 598,900 acre-feet Feb. 27 (elevation, 446 .65 feet).

1933-47: 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. Atout 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) 

nc f 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. 29). Figures given herein represent 

usable contents.

Elevation at 12 p.m.. In feet, water year October 1946 to September 1947

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.

448.06

448.06

448.12

448.32

448.59

448.77

448.72

448.57

448.44

448.61

448.80

449.05

449.50

449.38

449.11

449.11

449.23

449.44

449.58

449.81

449.70

449.41

449.29

449.33

449.37

449.47

449.79

449.80

449.60

443.54

449.69

Nov.

449.92

450.14

450.24

450.03

449.70

449.61

449.55

449.60

449.78

449.89

449.76

449.35

449.09

449.11

449.18

449.30

449.42

449.19

448.68

448.41

448.43

448.64

448.87

449.26

449.30

449.02

448.95

449.02

449.04

448.77

-

Dec.

448.72

448.29

447.64

447.31

447.35

447.46

447.62

447.88

447.84

447.50

447.33

447.37

447.48

447.69

447.95

447.96

447.79

447.74

447.89

448.14

448.39

448.62

448.50

448.11

448.10

448.01

447.60

447.49

447.81

443.' E

447.65

Jan.

44-7.69

447.84

447.51

447.58

447.82

447.77

447.42

447.33

447.30

447.15

447.21

447.39

447.20

446.83

446.86

446.92

447.03

447.22

447.45

447.29

446.88

446.82

446.89

447.10

447 . 38

447.75

447.64

447.40

447.46

447.70

447.87

Fab.

448.07

448.44

448.25

447.74

447.60

447.62

447.76

447.97

448.24

448.15

447.83

447.71

447.79

447.86

447.96

448.21

447.94

447.48

447.32

447 . 36

447.44

447.56

447.84

447.58

446.99

446.68

446.69

446.94

_

_

-

Mar.

447.48

448.02

448.09

447.80

447.90

448.14

448.35

448 . 45

448.39

448.15

447.71

447.52

447.47

447.48

447.58

447.91

447.75

447.49

447.48

447.67

448.00

448.51

448.92

448.93

448.58

448.47

448 . 30

448.37

448.65

449.01

448.84

Apr.

448.31

448.14

448.18

448.23

448.41

448.72

448.69

448.52

448.39

448.56

448.81

449.03

449 . 30

449.22

448.87

448.81

448.89

449.12

449.36

449.55

449.35

443.01

448.93

449.09

449.37

449.56

449.79

449.71

449.35

449.24

-

May

449.29

449.42

449.66

449.91

449.91

449.62

449.56

449.68

449.94

450.28

450.64

450.48

450.00

449.77

449.78

449.85

450.08

450.24

450.10

449.75

449.70

449.77

449.97

450.21

450.35

450.17

449.84

449.77

449.87

450.06

450.44

June

450.38

450 . 05

449.53

449.49

449.59

449.76

450.05

450.42

450.45

450.07

449.91

449.84

449.86

450.15

450.45

450.39

450.00

449.64

449.39

449.37

449. 67

450.08

449.93

449.57

449.37

449.37

449.37

449.72

450.14

450.22

-

July

450.01

449.94

449.98

450.17

450.33

450.22

449.98

449.61

449.41

449.47

449.63

449.88

450 . 14

450.06

449.91

449.94

45'-'. '19

450.16

450.18

450.21

450.33

450.29

450.20

450.28

450.36

450 . 42

450.57

450.40

450.15

450.14

450.14

Aug.

450.14

450.18

450.30

450.36

450.02

449.66

449.63

449.61

449.82

449.98

449.89

449.46

449.21

449.11

449.15

449.16

449.24

449.07

448.66

448.41

448.34

448.32

448.40

448.58

448.53

448.22

448.17

448.36

448.59

448.92

449.25

Sept.

449 . 42

449.15

448.80

448.74

448.85

449.14

449 . 46

449.29

448.90

448. =52

448.46

448.38

448.61

448.89

449.05

448.87

448.85

448.88

448.93

449.15

449.32

449.17

448.78

448.47

448.34

448.28

448.51

448.85

448.87

448.58

Note.- Elevations are mean sea level, datum of 1929
COLORADO RIVER MAIN STEM

Usable contents it 12 p.m., in thousands of ac 

water year Octobe

e-feet, of Havasu Lake near Parker 

1946 to September 1947

Dam, Ariz.-Calif.,

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.

630.5

630.5

631.8

636.4

642.6

646.3

645.6

642.2

639.2

643.1

647.5

653.2

663.6

660.8

654.6

654.6

657.4

662.2

665.4

67U.7

668.2

661.5

658.8

659.7

660.6

662.9

670.2

670.5

665.9

664.5

668.0

Nov.

673.2

678.4

680.8

675.8

668.2

666.1

664.7

665.9

670.0

672.6

669.6

6S0.1

654.2

654.6

656.2

659.0

661.7

656.4

644.7

638.5

639.0

643.8

649.1

658.1

659.0

652.5

650.9

652.5

653.0

646.8

-

Dec.

645.6

635.8

620.8

613.4

614.3

616.7

620.3

626.3

625.4

617.6

613.9

614.8

617.2

622.0

627.9

628.2

624.2

623.1

626.6

632.3

638.0

643.3

640.6

631.6

631.4

629.3

619.9

617.4

624.7

630.2

621.0

Jan.

622.0

625.4

617.8

619.4

624.9

623.8

615.9

613. 9

613.2

609.9

611.2

615.2

611.0

602.9

603.5

604.9

607.3

611.5

616.5

613.0

604.0

602.7

604.2

608.8

.615.0

623.3

620.8

615.4

616.7

622.2

626.1

Feb.

630.7

639.2

634.8

623.1

619.9

620.3

623.6

628.4

634.6

632.5

S25.2

622.4

624.2

625.9

628.2

633.9

627.7

617.2

613.7

614.5

616.3

619.0

625.4

619.4

606.4

599.6

599.8

605.3

_

_

-

Mar.

617.2

629.5

631.2

624.5

626.8

632.3

637.1

639.4

637.8

632.5

S22.4

618.1

617.0

617.2

619.4

627.0

623.3

617.4

617.2

621.5

629.1

640.8

650.2

650.5

642.4

639.9

636.0

637.6

644.0

652.3

648.4

Apr.

636.2

632.3

633.2

634.4

638.5

645.6

645.0

641.0

638.0

642.0

647.7

652.8

659.0

657.1

649.1

647.7

649.6

654.8

660.4

664.7

660.1

652.3

650.5

654.2

660.6

665.0

670.2

668.4

660.1

657.6

-

May

658.8

661.7

667.3

673.0

673.0

666.3

665.0

667.7

673.7

681.8

690.4

686.6

675.1

669.8

670.0

671.6

677.0

680.8

677.4

669.3

668.2

669.8

674.4

680.1

683.4

079.1

671.4

669.8

672.1

676.5

685.6

June

684.2

676.2

664.3

663.4

665.6

669.6

676.2

685.1

685.8

676.7

673.0

671.4

671.9

678.6

685.8

684.4

675.1

666.8

661.0

660.6

667.5

677.0

673.5

665.2

660.6

660.6

660.6

668.6

678.4

680.3

-

July

675.3

673.7

674.6

679.1

683.0

680.3

674.6

666.1

661.5

662.9

666.6

672.3

678.4

676.5

673.0

673.7

677.1

678.9

679.4

680.1

683.0

682.0

679.8

681.8

683.7

685.1

688.7

684.6

678.6

678.4

678.4

Aug.

678.4

679.4

682.2

683.7

675.5

667.3

666.6

666.1

670.9

674.6

672.6

662.7

656.9

654.6

655.5

655.8

657.6

653.7

644.3

638.5

636.9

636.4

638.3

642.4

641.3

634.1

633.0

637.4-

642 . 6

650.2

657.8

Sept.

661.7

655.5

647.5

646.1

648.6

655.3

662.7

658.8

649.8

643.3

639.7

637.8

643.1

649.6

653.2

649.1

648.6

649.3

650.5

655.5

659.4

656.0

647.0

639.9

636.9

635.5

640.8

648.6

649.1

642.4

Note;- Dead storage below sill of outlet gates is 28,600 acre-feet.

Monthly elevation and contents water year October 1946 to September 1947

Date

Dec. 31....................

Calendar year 1946 .......

Mater year 1946-47. ......

Elevation 

(feet)t

447.65

-

449 °5

448.58

-

Contents 

(acre-feet)

621,000

-

642,400

-

Change in contents 

during mon*;h 

(acre-fee*;)

-25,800

+44,300

-5,300

-15,400

+7,600

t Elevation at 12 p.
COLORADO RIVER MAIN STEM

Colorado River below Parker Dam, Arlz.-Calif.

Location.- Water-stage recorder, lat. 34°15 I 30", long. 114°09 I 10", In NE^SWi sec. 16, 

'J.' an., R. 27 E. San Bernardlno meridian, 4.1 miles downstream from Parker Dam, 

10.4 miles upstream from Headgate Rock Dam, and 11 miles northeast of Parker, Arlz 

Datum of gage Is 346.16 feet above mean sea level, datum of 1929.

Drainage area.- 178,800 square miles.

Kecords available - February to September 1934 (gage heights and fragmentary discharge 

records), October 1934 to September 1947. Records of diversion to Colorado River 

aqueduct, January 1939 to September 1947.

Average discharge.- 13 years (1934-47), 13,410 second-feet (not adjusted for storage)- 

13 years (1934-47), 13,480 secpnd-feet (adjusted to Include storage In Havasu Lake, 

but not In Lake Mead). i

Extremes (regulated) - Maximum discharge during year, 20,600 second-feet May 18 (gage 

height, L'b'.aa ree^); minimum dally, 9,830 second-feet (bet. 13.

1935-47: Maximum discharge, 42,400 second-feet FebL 8, 1937; no flow at Parker 

Dam parts of several days In 1942 when gates In dam were closed; minimim dally, 1 440 

second-feet Feb. 15, 1935.

An unregulated discharge of probably less than 1,350 second-feet occurred Aug. 13. 

1934 (lowest unregulated discharge since 1917 and probably since a much earlier date).

Remarks.- Records excellent. Many diversions above station. Flow regulated by Hoover 

and Farker Dams (see pp. 22, 27). Diversion by 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 returned to river both above and 

below station by percolation from both reservoirs.

Cooperation.- Record of diversions to Colorado River aqueduct furnished b-r Metropolitan 

Water District of Southern California.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

T

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12,700

12,200

1C, JOO

11,900

11,700

10,200

11,800

11,700

11,600

11 , 500

11,300

10,900

9,830

12,600

12,300

12,800

12,800

12,900

13,100

12,100

13,400

13,500

13,400

13,600

13,900

13,000

11,500

12,900

13,000

13,400

12,900

Nov.

13,000

12,700

12,100

13,000

12,700

12,800

13,600

14.0OO

12,800

11,400

13,300

13,600

13,800

13,900

14,200

13,100

12,400

14,000

14,200

14,900

14,900

14 , 300

12 , 600

11,500

12,700

13,000

13,300

13,000

13,500

13,300

-

Dec.

12,700

16,600

17,400

16,200

14 , 100

13,500

13,700

12,600

13,50O

13,800

14,200

14,200

14,100

14,100

13,700

13,300

13,600

13,900

14,100

13,600

13,700

13,300

15,000

14,500

13,700

14,800

15,100

15,000

13,400

13,500

13,700

Jan.

13,700

13,60O

14,700

14,100

13,500

15,600

15,900

16,800

16,200

16,400

15,000

13,500

15.8OO

16,400

16,100

16,100

16,000

14.9OO

14,400

16,200

16,400

16,200

15,900

16,000

15,300

14,800

15,800

16,400

16,000

16,100

16,500

Month

October - .... ..............

November ........... ..........

December ..................

Calendar year 1946 .........

January ............ ..........

February ....... ..............

March ........... ........ ....

April ....... ...... . . .......

May ................ ..........

June ..........................

July ..........................

August ..... .................

September .....................

Water year 1946-47 ..........

Feb.

17,200

14 , 3OO

16,500

17,900

17,500

16,400

16,500

16,200

15 , 50O

15,800

16,200

16,600

16,300

16,500

16,100

13,400

16,100

16,400

16,500

16,500

16,000

15,700

13,400

16,300

16,500

17,400

17,100

16,500

_

_

-

Secondfoot-days

382,530

397,600

438,600

5,113,230

480,300

453,300

473,700

401,800

456,200

433,500

425,600

449,900

412,900

5,205,930

Mar.

13,500

12,800

14,800

15,300

15,500

15,300

16,000

17,100

18,600

18,000

17,800

17,100

17,300

17,200

16,700

14,300

16,200

15,400

16,400

16,500

16,300

13,500

13,400

14 , 300

14,000

14,200

14,900

14,900

12,400

10,800

13,400

Maximum

13,900

14,900

17,400

20,200

16,800

17 , 900

18, 600

14,700

16,500

17,200

16,300

17,200

15,600

18,600

Apr.

14,100

13,900

13,900

13,900

12,500

11,800

12,500

13,000

13,OOC

13,200

13,100

12,800

11,700

13,100

13,300

13,500

13,500

13,500

12,800

12 , 300

14 , 300

14,600

14,700

14,400

14,300

13,200

12,700

14,000

14,100

14,100

-

May

14,600

14,200

13,300

12,600

14 , 300

14,400

14,300

14,500

14,000

12 , 900

13,100

14,500

14,900

16,200

16,200

16,500

15,400

16,000

16,100

15,600

14,400

15,200

15,100

15,200

15,500

15,800

15,200

15,200

14,800

13,500

12,700

Minimum

9,830

11,400

12,600

9,830

13,500

13,400

10,800

11,700

12,600

11,700

11,800

10,900

10 , 900

9,830

June

12 , 9OO

14,600

15, GOO

14 , 900

15,000

14,900

13,200

32,200

14,600

15,000

16,400

16,500

15,800

13,800

13,200

15,100

15,800

16,600

17,200

15,900

12,600

11,800

14,300

14,500

14,500

14 , 500

15,000

12,400

11,700

13,600

Mean

12,340

13,250

14,150

14,010

15,490

16,190

15,280

13,390

14,720

14,450

13,730

14,510

13,760

14,260

July

13,300

13,500

13,300

11,800

12,500

12,900

13,fiOO

13,400

13,600

13,000

12,600

12,000

12,100

13,500

12,900

12,800

12,600

14,000

16,000

15,400

13,700

14,000

14,700

14,800

14,100

15,200

14,000

16,300

14,000

14,700

15 , 300

Runoff in 

acre -feet

758,700

788,600

870,000

10,140,000

952,700

899,100

939,600

797,000

904,900

859,800

844,200

892,400

819,000

10,330,000

Aug.

16,400

16,700

15,400

15,600

14,800

17,200

16,500

16,600

14,800

14,100

14,400

14,700

14,700

14,700

14 , 900

15,000

14,300

14 , 900

15,100

15,000

14,700

14,700

13,400

12,100

13,500

13,300

13,300

13,200

13,200

11,800

10 , 900

Sept.

11,200

13,300

13,000

13,400

13,200

11,800

10 , 90C

14,800

15,400

15,500

15,500

15,200

12 , 300

11,900

13,300

13,400

13,600

14,200

15,400

13,700

13,300

15,400

15,300

15,680

15,300

14,900

12,600

12,300

13,300

13,900

~

Diversion to Colorado River aqueduct (acre-feet)

25,871

5

0

80,395

o

0

443

4,727

14,992

25,066

18,326

0

0

89,430
30 COLORADO RIVER MAIN STEM

DIVERSIONS BETWEEN PARKER DAM AND IMPERIAL DAM 

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

Location.- Diversion for Col

inuaKe. 

Records available.- January 1915

on east side _ 

River through - 

made about every ten days. 

Cooperation.- Records furnished by Office of Indian Affair

Monthly diversion, water year October 1946 to September 1947

December. .................

July......................

Water year 1946-47......

Sf

Max Iraum

132

?7 C>

385

fonl-feet

Minirnuni

48

145

0

Mean

1°3

99.3

 5^3

162

Ac re -feet

6,110

117,500

Water returned 

to river by

drainage canal 

(acre-feet)

1,750

5 140

24,560

Palo Verde Canal near Blythe, Calif.

Location.- Palo Verde Canal receives water from Colorado River at intake structure,

 lat.~ 33°44'05" , long. 114°30'45", in SE^SWi sec. 18, T. 5 3., R. 24 E. San Bernardino

meridian, 10 miles northeast of Blythe and 43 miles downstream from Headgate Rock Dam. 

Records available.- January 1922 to December 1923, January 1925 to September 1947. 

Hemarks.- Figures given herein represent flow diverted from Colorado River and are based

on combined deliveries to laterals downstream and occasional current-mete? measurement;

at intake. Canal diverts water from right bank of Colorado River for irrigation uf

lands in Palo Verde Irrigation District in vicinity of Blythe and Ripley, Riverside

County.

;veral wasteways 

for project was

_ follows: 200 second-feet Jan. 16; 243 second-feet Feb! 20; 269 second-feet Apr. 16: 

244 second-feet July 15, 1947.

Cooperation.- Records furnished by Palo Verde Irrigation District except for three discnarge measurements on drainage canal.

Monthly diversion, water year October 1946 to September 1947

Month

Calendar year 1946......

Water year 1946-47......

Maximum

880

850

Minimum

200

260

Mean

528

584

Runoff in 

acre-feet

382,000

422,600
COLORADO RIVER MAIN STEM

Colorado River at Imperial Dam, Ariz. -Calif.

Imperial Dam on Colorado River is located in lat. 32°53'00", long. 114°27'50". 

alifornia end is in W? sec. 9, T. 15 S., R. 24 E. San Bernardino meridian.

. The

California end is in W? 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. We dam is 

E 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.

At the California end of the dam, water is diverted by Ail-American Canal for use in 

Arizona and California. At the Arizona end, water is diverted "by Gila Gravity Main Canal 

for use in Arizona. Water was first diverted "by Ail-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 the sum of 

daily records of discharge obtained at gaging stations on Colorado River at Yuma, AllAmerican Canal near Imperial Dam, Gila Gravity Main Canal at Imperial Dam, plus records of 

diversions by Yuma Canal and North Gila Valley Canal at Laguna Dam furnished by Bureau of 

Reclamation, minus record for Gila River' near Dome, neglecting drainage retu-n flow and 

channel losses between those stations and Imperial Dam. The combination of records shows 

the f IDW of Colorado River at Imperial Dam and above all diversions in the vicinity of 

Yuma.

Records available, October 1942 to September 1947 (monthly discharge only). Records 

of daily and monthly discharge were obtained for July 1934 to September 1942 at a gaging 

station 14-j 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 Water -Supply Paper 

918.

Monthly discharge, water year October 1946 to September 1947

Month

December. .................

Calendar year 1946......

Water year 1946-47......

Maximum

18,100

-

18,100

Minimum

12,500

-

11 900

10,300

Mean

13,910

13.1OO

13,420

Runoff In 

acre-feet

855,100

3,486,000

9,714,000
32 COLUMBIA RIVER MAIN STEM 

Colorado River at Yuma, Ariz.

Location.- Water-stage recorder, lat. 32°43'45", long. 114°37'15", in NW^NEir sec. 35, T. 

16 S., R. 22 E. San Bernardino meridian, 1,800 feet downstream from highway bridge 

at Yuma, 4 miles downstream from Glla River, 19 miles downstream from Imperial Dam, 

half a mile upstream from Yuma Main Canal wasteway, and 7 miles upstream from boundary 

between California and Mexico. Datum of gage is 102.32 feet above mean sea level, 

iima 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 1947.

Extremes.- Maximum discharge during year, 14,200 second-feet Feb. 5; maximum gage height, 

ib.bu feet Jan. 22; minimum discharge, 330 second-feet July 16 (gage height, 8.36 

feet).

1902-47: Maximum discharge, 250,000 second-feet Jan. 22, 1916 (gage freight, 34.0 

feet); minimum daily, 18 second-feet Aug. 25-27, 1934, caused by diversion at Laguna 

Dam; minimum gage height, that of July 16, 1947.

Remarks.- Records excellent except those below 1,000 second-feet, which are good. 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, Yuma 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 Dan.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,700

5,730

4,680

3,810

3,100

2,850

2,810

2,290

2,220

1,830

2,350

2,320

2,560

3,120

2,010

1,580

1,770

2,050

2,980

3,280

3,690

3,700

3,870

4,530

5,020

4,990

5,240

5,440

5,090

4,500

4,330

Nov.

4,440

5,130

5,250

5,280

5,410

5,340

5,330

5,410

5,710

5,790

6,350

6,340

5,550

5,890

7,470

7,730

8,330

8,400

8,010

7,380

7,610

7,930

8,840

1O,000

9,970

7,930

6,790

6,980

6,890

6,830

-

Dec.

7,260

8,180

8,180

8,260

10,30O

12,400

10,200

8,980

9,150

8,630

8,520

7,510

7,860

7,980

8,320

8,720

8,670

7,950

7,930

8,190

8,200

8,190

8,140

8,720

9,130

10,200

10,300

10,600

10,600

11,100

10,800

Jan.

8,890

9,090

9,210

8,830

8,790

9,600

8,590

8,840

9,590

10,700

11,000

11,400

11,100

9,370

9,930

11 , 700

11,000

10 , 400

10,900

9,910

8,820

9,560

9,770

9,960

9,620

10,300

9,760

9,130

9,460

10,100

10,300

Feb.

1O.3OO

10,800

11,400

9,770

9,590

10, 200

11,200

11,000

10,900

10,700

9,790

9,290

9,600

10,500

10,600

1O.3OO

10,200

8,920

8,620

8,630

9,250

9,570

9,860

9,850

7,630

7,340

8,010

9,510

_

-

-

Month

December. ..................................

Calendar year 1946 ......................

March ......................................

April. . ...................................

May

September. ..... .......... ................

Water year 1946-47 ...... ...............

Mar.

10,100

10,100

9,130

6,330

7,190

6,650

7.4OO

7,630

7,890

9,110

10,100

11,300

10,700

9,78O

10,100

10,000

9,930

8,730

8,770

8,060

8,320

9,460

9,840

9,140

7,020

6,990

6,670

5,360

4,940

4,350

3,460

Apr.

1,710

1,230

710

2,180

2,490

2,810

2,760

1,910

850

830

1,010

1,070

1,270

1,380

900

590

500

580

2,010

1,010

1,490

1,170

1,120

1,840

2,720

2,940

3,560

3,820

3,250

3,170

-

Secondfoot-days

279,170

1,918,030

93,990

2,025,060

May

3,300

3,890

4,510

5,090

5,150

4,470

3,760

3.76O

4,1OO

5,150

5,050

5,330

4,430

4,480

5,410

6,330

7,250

7,910

8,500

7,890

6,460

6,620

5,880

5,960

4,960

5,230

5,310

5,550

5,560

5,260

5,580

Maximum

12,400

14,200

5,000

12,400

June

5,440

5,03O

3,840

3,240

3,370

3,560

4,470

3,810

3,790

3,110

2,620

2,640

3,200

4,770

4,760

4,560

3,070

2,670

3,040

2,570

3,280

3,980

3,720

2,150

1,550

1,760

2,400

3,430

2,130

2,810

-

Minimum

7,26

21

0 93

1,34

50

July

1,860

1,070

600

550

1,220

1,020

960

690

670

540

680

960

1,370

1,390

880

660

710

740

900

1,090

1,760

2 , 500

2,820

1,890

1,960

3,350

1,710

2,230

2,760

2,420

2,670

Aug.

2,930

2,950

3,170

4,44O

4,710

4,100

4,030

4,330

5,410

6,260

6,060

5,880

4,910

4,520

4,570

4,880

4,580

5,090

5,390

5,170

4,820

4,810

4,720

4,840

4,900

4,660

3,670

3,150

3,670

3,220

3,400

Mean

3 9,005

3 5,255

3 3,133

3 5,548

Sept.

3,490

3,120

2,240

2,030

1,980

2,150

2,340

2,350

1,990

1,340

2,180

3,380

4,110

4,410

4,550

3,440

2,670

1,870

1,810

2,000

2,650

3,250

3,550

3,490

3,930

4,760

4,800

5,000

4,960

4,150

-

Runoff in 

acre-feet

553,700

3,804,000

199 9OO

185,400

4,017,000
33

POINTS AT WHICH STREAM-FLOW RECORDS ARE TAKEN

CALIFORNIA 

DRAINAGE CANAL

Colorado River at Imperial Dam 

Colorado River at Yuma 

Colorado River at Rockwood gate 

Gila Gravity Main Canal at Imperial Dam 

All-American Canal near Imperial Dam 

All-Amerlcan Canal above Pilot Knob wasteway 

Yuma Main-Canal at siphon-drop porter plant 

Yuma Main Canal below Colorado River siphon 

Yuma Main Caiial wasteway at Yuma 

Pilot Knob wasteway near Pilot Knob 

Yuma Canal at Lacuna Dam 

North Olla Valley Canal at Laguna Dam 

Alamo Canal at Andrade 

Return surface flows from Yuma project: 

14. California drainage canal

Cooper wastewav

Eleven Mile wasteway

Twenty-one Mile wasteway

Main Drain

YUMA MAIN GANA 

WASTEWA

JFT

[YUMA

Detail of area A.

19. East Main Canal 

20. 01la River near Dome

PUMPING PLANT NO. I

B CANA 

MESA 

PUMPING 

PLANT

S 0 N 0 R A

Figure 2. - Gaging stations in vicinity of Yuma, Ariz.
34 COLORADO RIVER MAIN STEM

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

Location.- Lat. 32°44'00", long. 114°42'40", in SE^SW^ sec. 25, T. 16 S., R. 21 E. San 

Bernardino meridian, at Rockwood gate, 1 mile upstream from international boundary, 

5 miles west of Yuma, Ariz., and 6 miles downstream from gaging station on Colorado 

River at Yuma.

Records available.- 1934 to September 1947 (1934-36, yearly discharge only; January 1937 

to September 1945, monthly discharge only). Records of discharge prior to October 

1938 have been published in Water-Supply Paper 1049 as Colorado River at Rockwood 

gate, Calif.

Remarks.- Records good. Records show water available at Rockwood gate, including water 

passing through Pilot Knob wasteway, and are the sum of records obtained at gaging 

stations on Colorado River at Yuma, Yuma Main Canal wasteway at Yuma, anl Pilot Knob 

wasteway near Pilot Knob, plus records of California Drainage Canal at Ynna furnished 

by Bureau of Reclamation. Rockwood gate is at head of Alamo Canal and can be used to 

control flow of Colorado River water into canal or to return water from Pilot Knob 

wasteway to Colorado River.

Discharge, in second-feet, water year October 1946 to September 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.

6,970

8,120

6,940

5,940

5,380

5,190

4,910

4,420

4,290

3,880

4,250

4,410

4,660

4,940

4,190

3,720

3,930

4,140

5,040

5,440

5,730

5,610

5,680

6,280

6,730

6,760

7,070

7,140

6,850

6,260

6,110

Nov.

6,290

7,080

7,260

7,050

7,180

7,130

7,120

7,230

7.S90

7,640

8,150

8,070

7,380

7,780

9,390

9,650

10,300

10,100

9,700

9,130

9,460

9,940

10,600

11,600

11,400

9,380

8,280

8,530

8,460

8,440

-

Dec.

8,930

9,640

9,680

9,820

11,900

13,900

11,800

10,600

10 , 600

10,100

10,000

9,100

9,450

9,600

9,970

10,200

10,200

9,530

9,530

9,800

9,890

9,910

9,660

10,400

11,200

11,900

12,100

12,500

12,500

12,800

12,500

Jan.

10,600

1O.80O

11,000

10 , 600

10,500

11,200

10,200

10,500

11,200

12,400

12,600

13,000

12,500

10,900

11,500

13,300

12,600

12,000

12,500

11,400

10,300

11,000

11,300

11,500

11,200

11,900

11,100

10,500

10,900

11,600

11,800

Feb.

11,900

12 , 400

12,800

11,200

11,000

11,700

12,700

12,500

12,400

12,100

11,200

10,700

11,100

12,000

12,100

11,900

11,600

10,300

10,000

10,100

10,800

11,200

11,500

11,200

9,000

8,750

9,440

11,000

_

_

-

Month

December ...................................

Calendar year 1945 ............... . . .

March. .....................................

April. .....................................

May...................................... .

July. ......................................

September. ........................ .... .

Water year 1946-47 ......................

Mar.

11,700

11,800

10 , 600

7,750

8,640

8,090

3,900

9,330

9,750

10,600

11,600

12,800

12,300

11 , 400

11,700

11,600

11,400

10,200

10,200

9,600

9,880

11,100

11,500

10,600

8,460

8,480

8,150

7,790

8,300

8,820

8,290

Apr.

6,590

6,000

5,660

7,250

7,650

8,110

7,650

6,830

5,780

5,810

6,O60

6,180

6,390

6,300

5,790

5,510

5,470

5,530

6,990

6,070

6,380

6,060

5,960

6,600

7,410

7,480

7,810

7,640

6,770

6,590

-

Secondfoot-days

329,710

2,967,100

2oo' q'O

209,500

3,077,910

May

6,510

6,730

7,220

7,740

7,610

6,810

6,200

6,330

6,740

7,840

7,740

7,760

6,820

6,700

7,060

7,870

8,800

9,480

9,900

9,290

9,150

8,930

8,320

8,550

7,690

7,840

7,930

8,310

8,510

8,160

8,470

Maximum

13,900

15,700

8,660

13,900

June

8,670

8,200

6,990

6,390

6,58O

6,860

7,940

7,470

7,360

6,760

6,240

6,260

6,920

8,680

8,840

8,610

7,020

6,690

6,760

6,980

7,850

8,740

8,400

6,760

5,940

6,010

6,580

7,810

6,730

7,280

-

Minimum

8,93

3,72

5 94(

5 , 46(

3.72C

July Aug.

6,360 8,420

5,630 8,310

5,630 8,530

6,010 9,340

6,580 9,480

6,420 8,890

5,970 8,860

5,610 9,140

5,620 10,200

5,580 11,000

5,740 10,600

6,02O 10,30O

6,450 9,220

6,340 8,590

5,810 8,480

5,590 8,820

5,680 8,560

5,770 8,770

5,940 8,960

6,160 8,730

6,680 8,460

7,470 8,560

7,900 8,640

7,020 8,810

7,060 8,670

8,490 8,300

6,880 7,330

7,190 7,040

7,590 7,530

7,480 7,370

8,250 7,610

Meat

D 10,640

3 f,129

3 p 544

3 q 759

3 F.983

J f,433

Sept.

7,580

7,210

6,410

6,320

6,340

6,640

7,000

7,020

6,640

5,900

6,560

7,690

8,350

8,660

8,590

7,260

6,360

5,550

5,460

5,660

6,320

6,680

6,880

6,640

6,980

7,870

8,110

8,330

7,800

CjS90

-

Runoff in 

acre-feet

654,000

5,885,000

415,500

6,105,000
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 35

Gila Gravity Main Canal at Imperial Dsm, Ariz.-Calif.

Location.- Water-stage recorder, lat. 32°52'35", long. 114°27 I 15", in SE^-SW^ sec. 30, 

T. 6"S. , R. 21 W. Gila and Salt River meriJian, 3,200 feet downstream from intake at 

east end of Imperial Dam. Datum of gage is 160.00 feet above mean sea level, datum 

of 1929.

Records available.- August 1943 to September 1947.

Extremes.- Maximum discharge during year, 580 second-feet Sept. 4 ge height, 15.93

feet); no flow Feb. 10, 11.

1943-47: Maximum discharge, 776 second-feet Sept. 7, 1945 (gage height, 16.44 

feet); minimum daily, that of Feb. 10, 11, 1947.

Remarks.- Records good except those below 50 second-feet, which are fair. Gila Gravity 

Main Canal diverts water from Colorado River at east end of Imperial Dam. Water is 

used for irrigation of lands in Aricona.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

b

6

7

8

9

10

11

13

15

16

IV

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

245

257

239

225

212

195

196

241

241

291

258

219

216

213

196

196

224

239

254

244

248

229

217

211

216

219

198

200

199

223

226

Nov.

227

230

229

216

212

201

196

162

116

141

155

17S

176

183

177

163

154

177

181

176

195

183

176

190

187

179

191

173

163

145

-

Dec.

138

137

149

129

129

153

149

121

154

145

149

159

157

149

141

150

167

149

151

187

175

125

129

35

3

137

165

133

118

121

45

Jan.

14

148

139

125

124

18^

153

157

149

129

133

145

135

121

122

124

149

136

127

125

132

131

179

182

145

134

154

184

153

145

131

Feb.

119

143

175

159

201

203

187

143

3

0

43

165

250

132

149

188

13"

185

205

188

150

155

193

216

220

226

206

-

_

-

Month

December. ............ ... ...... .....

Calendar year 194B ........ ...... .....

March ...................... . . . ........

April. . .................. ....... ......

May. .......... ... .. ....... ............

Wster year 194S-47 . ... . ...... ....

Mar.

165

142

167

179

179

175

167

149

150

160

191

193

195

153

122

137

181

210

179

153

158

171

179

191

190

17 a

198

198

172

171

170

Apr.

172

173

179

209

214

206

171

180

227

242

216

186

175

206

229

211

178

187

198

195

173

191

172

171

192

240

220

19l

187

215

-

Secondfoot days

4,149

73,901

5 323

71,644

May

235

242

234

229

228

227

237

249

250

238

197

198

244

250

250

232

219

189

199

241

249

225

230

231

245

237

230

252

249

255

249

Maximum

187

360

322

322

June

257

271

257

255

193

269

230

241

271

274

249

206

235

242

249

228

246

259

257

256

241

238

239

245

255

259

233

203

202

243

-

Minimum

19r

159

July

286

261

245

200

159

176

215

201

249

245

215

211

211

225

247

227

205

241

227

208

234

256

188

247

237

215

235

251

250

251

Aug.

208

170

197

242

209

264

239

237

198

194

208

197

222

240

222

230

240

225

226

223

220

219

235

232

247

178

305

203

185

189

200

Mean

134

202

172

196

Sept.

254

271

256

204

267

247

222

204

190

184

182

165

155

244

196

220

203

235

241

228

211

203

174

189

242

264

295

245

290

322

Runoff in 

acre-feet

8,230

146,600

142, 100
36 DIVERSIONS AND RETURN PLOWS AT AND BELOW IMPERIAL DAM 

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

Location.- Water-stage recorder, lat. 32°52'15", long. 114°28'50", in SEijNW£ sec. 17, 

T. ib S., R. 24 E. San Bernardino meridian, 6,000 feet downstream from intake at 

west end of Imperial Dam and 13^ miles upstream from turnout to Yuma Main Canal. 

Datum of gage is 150.00 feet above mean sea level, datum of 1929 (subject to undetermined changes caused by earthquake of May 18, 1940).

Records available.- October 1939 to September 1947.

Extremes.- Maximum discharge during year, 11,700 second-feet Apr. 19 (gage height, 21.82 

feet); minimum daily discharge, 3,630 second-feet Dec. 28.

1939-47: Maximum discharge, that of Apr. 19, 1947; no flow on some days of several 

years.

Remarks.- Records excellent. All-American 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 is diverted from All-American Canal through 

Pilot Knob wasteway to Alamo Canal for irrigation in Mexico.

Discharge, in second-feet, water year October 1946 to September 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.

6,720

7,440

8,010

7,910

8,030

7,850

7,490

7,630

7,880

8,150

7,860

7,680

7,480

7,210

8,280

8,380

8,220

8,260

7,880

7,870

7,910

8,020

7,510

6,830

6,770

6,790

 6,740

6,880

6,960

6,880

6,910

Nov.

6,910

6,870

6,460

6,270

6,170

6,080

6,240

6,380

6,260

5,970

5,610

5,740

5,790

5,610

5,170

4,940

4,850

4,880

4,900

5,120

5,200

5,430

5,050

4,510

4,580

4,960

5,060

4,850

5,120

5,220

-

Dec.

4,930

4,320

4,300

4,820

5,380

5,400

5,280

4,510

3,930

4,140

4,090

4,840

5,240

5,360

5,110

4,970

4,980

5,060

4,990

4,920

4,960

4,880

4,750

4,160

3,940

3,930

3,740

3,630

3,820

3,880

4,110

Jan.

4,260

4,320

4,450

4,580

4,590

4,640

4,950

5,030

5,180

5,390

5,130

4,820

4,900

4,430

4,450

3,780

4,850

5,100

4,960

5,420

5,630

5,500

5,610

5,570

5,520

5,210

5,250

5,540

5,290

5,260

5,470

Feb.

5,370

5,210

5,050

5,430

5,480

5,530

5,520

5,350

4,990

5,360

5,490

5,800

5,660

5,260

5,380

5,240

5,300

5,330

5,420

5,910

6,000

5,740

5,250

5,360

6,270

6,410

6,730

6,380

_

_

-

Month

October. ...................................

November . ........................ .........

December. ...............................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. ............................ ........

April. ......................... ...........

May.......................................

June .......................................

July. ............. .................... ...

August .....................................

September. ...... ....... ... ... ...... ...

Water year 1946-47 ... ...... ...........

Mar.

6,360

6,210

6,210

6,620

6,250

6,450

6,370

6,340

6,280

6,380

6,490

6,360

6,300

6,280

6,280

6,280

6,110

6,360

6,290

6,430

6,390

5,860

5,720

5,820

6,110

6,160

6,610

7,620

8,180

9,320

9,870

Apr. .

10,200

10,400

11,000

10,300

10,100

9,560

9,720

10,300

10,500

10,500

10,700

10,700

10,500

10,400

10,700

10,800

11,100

11,400

10,600

10,300

10,400

10,500

10 , 200

9,980

9,940

9,780

9,220

8,650

8,700

8,520

-

Secondf cot-days

234,430

166,200

142,370

2,724,350

155,070

156, 220

204,310

305,670

236,110

284,040

317,440

267,690

263,070

2,732,620

May

8,680

8,440

8,120.

7,620

7,390

7,520

7,820

8,140

8,120

7,810

7,130

6,970

7,330

7,300

6,950

6,950

6,890

6,600

6,220

6,470

7,760

7,720

7,980

7,960

7,680

7,600

7,960

7,980

8,360

8,380

8,260

Maximum

8,380

6,910

5,400

10,600

5,620

6,730

9,870

11,400

8,680

10,800

11,000

10,400

9,780

11,400

June

7,800

7,600

7,980

8,370

8,740

9,180

9,110

9,280

9,130

9,140

9,200

9,700

9,760

9,780

9,160

9,380

9,850

9,480

9,810

10,800

10,700

10,300

10,200

10,300

9,800

9,880

10,000

9,940

9,950

9,720

-

Minimum

6,720

4,510

3,630

3,630

3,780

4,990

5,720

8,520

6,220

7,600

9,430

7,920

7,900

3,630

July

9,800

10,100

10 , 700

10,500

10,100

10,400

10,300

10,500

10 , 600

11,000

11,000

10 , 600

10 , 100

9,920

10,200

10,100

10,400

10,700

10,500

9,940

9,430

9,720

10,200

10,500

10 , 300

9,780

10,000

9,990

9,960

10,000

10,100

Aug.

9,820

9,850

9,520

9,350

9,420

10,400

10,100

9,270

8,220

8,340

8,220

8,020

8,300

8,400

8,200

7,940

8,300

8,220

8,400

8,470

8,380

8,240

8,200

8,040

7,920

7,920

8,340

8,420

8,260

8,790

8,420

Mean

7,562

5 540 4)593

7,464

5,002

5 579

6^591

10,190

7,616

9,468

10,240

8,635

8,769

7,487

Sept.

8,320

8,440

8,430

8,320

8,750

8,960

9,050

9,020

9,100

9,060

8,660

8,870

8,800

8,710

8,780

8,760

8,910

9,470

9,780

9,520

9,270

9,260

9,160

8,920

8,530

8,120

8,140

8,060

7,900

8,000

-

Runoff in 

acre-feet

465,000

329,700

282,400

5,404,000

307,600

405^200

606,300

468,300

563,400

629,600

531,000

521,800

5,420,000
DIVERSIONS AND RETURN FLOWS AT AMD BELOW IMPERIAL DAM 37

AH-American Canal above Pilot Knob wasteway, Calif.

Location.- Water-stage recorder, lat. 32°45'00", long. 114°42'20", in NW£S"i^ sec. 24, 

T. ib S., R. 21 E. San Bernardino meridian, at bridge on U. S. Highway 80, 1 mile 

upstream from Pilot Knob wasteway, 5 miles downstream from turnout to Yuma Main Canal, 

Sf miles northwest of Yuma, and 19^ miles downstream from intake at Imperial Dam. 

Datum of gage is 148.52 feet above mean sea level, datum of 1929. Auxiliary waterstage recorder, in ME-^NW^ seq. 15, T. 16 S., R. 22 E., on wash overshoot structure 

4.4 miles upstream.

Records available.- October 1938 to September 1947.

Extremes.- Maximum daily discharge during year, 9,000 second-feet Apr. 3; maximum gage 

height, 15.98 feet Apr. 19; minimum dally discharge, 1,570 second-feet Jan. 16.

1938-47: Maximum daily discharge, that of Apr. 3, 1947; maximum gag? height, 

19.91 feet Apr. 1, 1945; no flow on several days since continuous operation began 

Sept. 18, 1940.

Remarks.- Records excellent. Discharge computed by using fall as determined by 

auxiliary water-stage recorder as a factor.

Discharge, in second-feet, water year October 1946 to September 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.

4,710

5,390

5,950

5,860

5,830

5,760

5,550

5,610

5,850

6,120

6,070

5,730

5,580

5,350

5,990

6,300

6,300

6,160

5,820

5,750

5,730

5,890

5,570

4,800

4,760

4,780

4,800

4,870

5,030

4,930

4,960

Nov.

4,980

4,970

4,600

4,370

4,290

4,170

4,320

4,430

4,360

4,020

3,890

3,810

3,840

3,690

3,350

3,060

2,950

2,960

2,950

3,130

3,160

3,320

3,010

2,450

2,380

2,750

2,970

2,830

3,040

3,240

Dec.

3,080

2,470

2,350

2,680

3,420

3,410

3,390

2,700

1,850

2,020

2,010

2,820

3,280

3,470

3,210

3,080

3,010

3,130

3,050

2,950

3,000

2,920

2,840

2,280

1,940

1,990

1,750

1,580

1,710

1,740

1,970

Jan.

2,110

2,250

2,370

2,500

2,560

2,540

2,830

2,910

3,110

3,270

3,250

3,010

2,850

2,380

2,320

1,570

2,590

3,210

3,010

3,290

3,540

3,400

3,570

3,510

3,490

3,110

3,140

3,310

3,270

3,110

3,290

Feb.

3,280

3,120

2,950

3,260

3,370

3,530

3,560

3,370

2,970

3,260

3,450

3,610

3,510

3,100

3,220

3,150

3,190

3,280

3,330

3,820

3,950

3,750

3,270

3,300

4,090

4,280

4,600

4,280

-

-

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1946 ............... ......

January ............................. .... .

February ............................ ...

March. .............................. ......

April. .....................................

May. ......................................

June ..................... .......... ......

July. ............ ....... .................

August ........... .................. ......

September. ....... ......................

Water year 1946-47 . .......... .........

Mar.

4,300

4,180

,120

,480

,180

,370

,280

,300

4,180

4,290

4,330

4,270

4,230

4,230

4,200

4,230

4,030

4,220

4,160

4,340

4,340

3,810

3,750

3,820

4,060

4,100

4,460

5,330

5,800

7,170

7,720

Apr.

8,410

8,380

9,000

8,380

8,100

7,620

7,690

8,170

8,480

8,410

8,580

8,560

8,320

8,240

8,570

8,580

8,910

8,970

8,610

8,350

8,390

8,560

8,180

7,930

7,880

7,730

7,180

6,600

6,650

6,430

-

Secondfoot-days

171,800

107,290

81,100

1,995,090

90,670

97,850

139,280

243,860

168,960

217,000

250,200

199,860

197,150

1,965,020

May

6,530

6,310

5,890

5,380

5,200

5,300

5,520

5,940

5,880

5,700

5,020

4,850

5,120

5,140

4,750

4,700

4,640

4,440

3,990

4,150

5,510

5,420

5,750

5,940

5,600

5,480

5,850

5,950

6,350

6,330

6,330

Maximum

6,300

4,980

3,470

8,670

3,570

4,600

7,720

9,000

6,530

8,300

8,710

8,100

7,330

9,000

June

5,770

5,630

6,010

6,350

6,610

6,890

6,740

6,970

6,930

6,900

6,910

7,300

7,200

7,280

6,980

7,210

7,600

7,170

7,900

8,300

8,260

7,960

7,970

8,060

7,560

7,620

7,750

7,720

7,800

7,650

-

Minimum

4,710

2,380

1,580

1,580

1,570

2,950

3,750

6,430

3.9SO

5,630

7,440

5,680

5,890

1,570

July

7,720

7,980

8,490

8,290

8,010

8,280

8,200

8,340

8,440

8,710

8,640

8,310

7,850

7,820

8,150

7,990

8,280

8,440

8,200

7,800

7,440

7,660

8,120

8,280

8,100

7,720

7,930

7,820

7,720

7,720

7,750

Aug.

7,560

7,540

7,380

7,090

7,290

8,100

7,930

7,220

6,300

6,310

6,310

6,010

6,'220

6,210

6,060

5,680

6,080

5,940

5,990

6,040

6,060

6,020

6,000

5,920

5,750

5,730

6,040

6,210

5,980

6,590

6,300

Mein

5,542

3,576

2,616

5,466

2,925

3,495

4,493

8,129

5,450

7,233

8,071

6,447

6,572

5,384

Sept.

6,160

6,230

6,260

6,210

6,580

6,770

6,930

6,910

6,970

6,950

6,510

6,600

6,530

6,440

' 6,590

6,540

6,640

7,210

7,330

7,060

6,940

6,920

6,810

6,620

6,250

6,050

6,170

6,130

5,890

5,950

-

Runoff in 

( acre-feet

340,800

212,800

160,900

3,957,000

179,800

194,100

276,300

483,700

335,100

430,400

496,300

396,400

391,000

3,898,000
33 DIVERSIONS AND RETURN PLOWS AT AND BELOW IMPERIAL DAM

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

Lucition.- Water-stage recorders on forebay and tailrace at power plant, lat. 32°46'35", 

lung. 114°38'05", in SE^SE^ sec. 10, T. 16 S. , R. 22 E. San Bernardino ireridian, 500 

feet from turnout in Ail-American Canal to Yuma Main Canal, 4 miles north of Yuma and 

142 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, 

datum of 1929 (subject to undetermined changes caused by earthquake of May 18, 1940).

Records available - July 1926 to September 1947 (prior to October 1938 monthly discharge 

only, published in Water-Supply Paper 1049).

Extremes.- Maximum daily discharge during year, 2,030 second-feet July 31; minimum daily, 

1,510 second-feet June 19.

1930-47: Maximum daily discharge, 2,040 second-feet Nov. 11, 1343; no flow on some 

days in 1937, 1938, 1939, and 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 was considered negligible. Rating 

of turbines checked by current-meter measurements. Records show quantity of water 

diverted from All-American Canal for power development at siphon-drop power plant and 

for irrigation on Valley division of Yuma project. Most of water not needed for 

irrigation is returned to Colorado River through Yuma Main Canal wasteway, 3-f miles 

downstream.

Cooperation.- Record of turbine gate openings in power plant and of Walapai Canal diver-^ 

sion furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 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.

1,830

1,870

1,840

1,890

1,900

1,910

1,830

1,870

1,870

1,870

1,710

1,880

1,880

1,730

1,890

1,890

1,890

1,890

1,9OO

1,900

1,890

1,890

1,890

1,890

1,890

1,900

1 , 900

1,890

1,890

1,890

1,900

Nov.

1,9OO

1,900

1,910

1,900

1 , 900

1,900

1,900

1,900

1,900

1,900

1,900

1,900

1 , 900

1,900

1 , 900

1,900

1,900

1,900

1,910

1,910

1,950

1,970

1,970

1 , 970

1 , 960

1,960

1,960

1,960

1,960

1,960

"

Dec.

1,960

1,960

1,960

1,960

1,970

1,970

1,970

1,970

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

1,960

1,970

1,960

1,970

1,970

1,970

1,970

1,970

Jan.

1,970

1,970

1,970

1,970

1,940

1,940

1,940

1,940

1,940

1,940

1,720

1,650

1,920

1,920

1,920

1,920

1,920

1,730

1,760

1,920

1,920

1,920

1,920

1,920

1,930

1,920

1,920

1,920

1,920

1,920

1,920

Month

October . ...... ........ ....

November ........ . . . . ...

December ...... ........ . ...

Calendar year 1946 . ...

January .... . . .........

February . . . . ... . . ......

March . ... . . . . April . ....

May ......

June ... . . . .

July . . .

August

September .

Water year lj4r,-4/

Feb.

1,920

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,940

1,960

1,970

1,970

1,970

1,970

1,960

1,960

1,960

1,960

1,960

.

_

-

Secondfoot-days

58,060

57,650

61,000

707,690

59,030

54 540

61 laid

60,080

62,050

59,540

62,560

62 , 530

CO,4FO

713,41l_

Mar

1,98O

1,980

1,980

1,980

1,980

1,980

1,980

2,000

2,010

2,000

2,000

2,000

2,010

2,010

2,000

2,000

2,000

2,000

2,000

2,000

2,010

2 ,OOO

2,000

2,000

2,000

2,000

2,000

2,000

2,000

2 ,010

2,000

Maximum

1,910

1,970

1,970

1,980

1,970

1,970

2,010

2,010

2,010

2,010

2,030

n i^ro

r.uco

:,u3o

Apr.

2,000

2,000

2,010

2,000

2,010

2,000

2,000

2,010

2,010

2,010

2,000

2,010

2,000

2,000

2,000

2,000

2,000

2.OOO

2,000

2,010

2,000

2,000

2,000

2,000

2,000

2 ,010

2,000

2,000

2 , 000

2 ,000

-

May

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

2,010

2,000

2,OOO

2,000

2,000

2,000

2,010

2,010

2,000

2,000

2,000

2,010

2,UOO

2,010

2,000

2,000

Minimum

1,710

1,900

1,960

1,550

1,650

1,920

1 , 980

2,000

2,000

l,51u

2,o:o

1,39"

2, nil

1 .fill!

June

2.OOO

2,00n

2,000

2,010

2,010

2,OOO

2,000

2,000

2,OOO

2,000

2,000

2,000

2,000

2,000

2,000

2,000

2,000

2,010

1,510

2,000

2,000

2 ,000

2,000

2,000

2 ,000

2,000

2, COO

2,000

2,000

2,000

Mean

1,873

1,922

1,968

1,939

1,904

1,948

1,997

2 ,005

2,0^2

1,985

2,018

2,017

?,nl5

1.97J

July

2,0oo

2,000

2,000

2,010

2,020

2,02n

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2.O2O

2,020

2,020

2,020

2,020

2,02O

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,030

Runoff In 

acre-feet

115,200

114,300

121,000

1, 404,000

117,100

108,200

122,800

119,200

123,100

118,100

124,100

124,000

113,9ui >

1,427 ,00n

Aug

2 ,020

2,020

2,010

2,010

2,010

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

2,010

2,010

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,010

2,020

2,020

Sept.

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,020

2,010

2,020

2,010

2,020

2,020

2,010

2,010

2,010

2,010

2,010

2,020

2,020

2,010

2,010

2,010

2,010

2,010

2,020

2,020

2,030

2,010

~

Diversion by 

Walapai Canal 

(acre-feet)

1,040

577

434

8,080

536

726

825

73fi

440

284

244

367

587

6,800
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 39

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

Location.- Two gages determine head on Colorado River siphon. At intake, water-stage 

recorder, lat. 32°43'50", long. 114°37'10", in SW^SE^- see. 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 3j miles downstream from siphon-drop 

power plant. At outlet, water-stage recorder In NW^NE^ see. 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 over 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 1947 (prior to October 1938 monthly 

discharge only, published In Water-Supply Paper 1049).

Extremes.- Maximum daily discharge during year, 718 second-feet Aug. 5; minimum daily, 

12 second-feet Dec. 25.

1930-47: Maximum daily discharge, 855 second-feet Mar. ^,4, 1931; no flow during 

short periods in most years.

Remarks.- Records excellent except those below 100 second-feet, which are poor. Daily 

aischarge 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 Yuma 

project and for supplementary municipal supply for city of Yuma. Records of water 

analyses for the water year 1947 are given in Water-Supply Paper 1102.

Cooperation.- Record of diversion for supplementary municipal supply for city of Yuma 

collected by Arinona Edison Co.

Discharge, in second-feet, water year October 1946 to September 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.

677

457

547

618

549

514

641

649

655

658

644

589

556

651

530

603

596

588

563

543

601

581

610

601

610

517

496

637

651

628

609

Nov.

564

499

447

628

615

597

593

599

569

555

562

621

568

536

489

449

422

589

576

524

510

505

449

417

609

574

539

471

439

404

-

Dec.

352

554

526

480

473

520

440

407

587

544

516

460

458

418

398

533

513

469

446

442

382

325

540

346

12

388

221

185

197

364

311

Jan.

341

349

317

300

286

427

410

408

398

358

189

166

547

495

446

437

425

224

188

539

504

521

490

459

417

386

602

588

557

538

512

Month

October ............ ...... . . ...

November .... . ... . . ... ......

December ... ... ... ..... ......

Calendar year 1946 ..... ......

January .... ...... ..........

February . . ...... ............

March ....... . ......... . . ....

April ....... ..... ........... .

May ................ ... .....

June ............ ... .........

July ............. ..........

August ................ ..... ...

September ..... ...... .....

Water year 1946-47 . . .........

Feb.

435

405

586

573

542

545

519

491

473

620

595

561

564

554

500

419

621

620

596

563

477

455

408

669

659

610

598

534

_

_

-

Secondfoot-days

18,369

15,919

12,827

195,951

12,824

15,192

16,263

17,436

17.76E

15,706

16,703

17,848

13,67,5

196,537

Mar.

452

400

615

619

599

607

560

370

221

601

572

520

496

474

449

439

639

611

583

526

512

473

398

618

629

588

583

554

474

413

668

Apr.

675

613

580

502

415

269

664

657

643

601

540

478

453

649

680

660

613

638

604

523

S99

580

662

569

522

490

448

663

657

589

-

Maximum

677

628

587

682

602

669

668

699

689

616

701

718

712

718

May

573

586

520

505

689

684

664

618

556

525

515

P51

630

592

556

544

522

500

648

647

599

556

538

490

450

608

607

582

543

54O

527

Minimum

457

404

12

12

166

405

221

269

450

415

19

29

573

I'd

June

475

604

592

586

571

556

415

430

616

589

575

527

450

456

455

560

596

546

554

495

496

471

557

510

511

518

504

463

424

6O3

-

Mean

592

531

414

537

414

542

525

581

573

524

539

576

656

538

July

582

549

398

103

201

205

582

661

65u

582

564

528

500

63E

650

653

607

560 53E"

52f

65£

636

668

674

687

633

616

70]

574

466

IE

RniDff ii 

jere-feet

56,430

31.57D

25,44'

'38 7'"i'"'

25,44'

'"' ,' 5 " "i

541530

55 ,24

31 , lo

33.lt'.'

<V,,4'-'

9y,s

Aug.

29

159

168

610

718

710

585

640

566

518

684

641

657

628

608

589

566

689

679

684

666

614

540

488

623

656

631

594

653

505

550

Divers!

Sept.

647

652

644

634

639

613

611

661

653

640

653

652

619

583

706

697

702

695

712

639

573

695

663

680

689

695

632

596

706

704

-

:m for 

nl:ipal

26

i

1 j ^ "1'-

j

1)5

1.5

1"

44

431

t Included in first five columns of table.

852060 O - 49 - 4
40 DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM

Yuma Main Canal wasteway at Yuma, Ariz.

Location.- Yuma Main Canal wasteway receives water from Yuma Main Canal at gates, lat.

 3yu 44iOO", long. 114°37'20", in SW&3E£ sec. 26, T. 16 S., R. 22 E. San Pernardino

meridian, 1,645 feet upstream from intake of Colorado River siphon on Yuma Main Canal, 

half a mile north of Yuma, and 3^ 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 1947. Records of monthly discharge prior to 

October 1938 have been republished in Water-Supply Paper 1049.

Extremes.- Maximum daily discharge during year, 2,010 second-feet July 31; minimum daily, 

9bt> second-feet June 19.

1930-47: Maximum daily discharge, that of July 31, 1947; no flow several days in 

1937, 1938, 1939, and 1945.

Remarks.-Records 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 October 1946 to September 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.

1,150

1,400

1,290

1,270

1,350

1,400

1,180

1,220

1,220

1,210

1,070

1,290

1,320

1,080

1,350

1,290

1,290

1,300

1,340

1,360

1,280

1,300

1,270

1,290

1,280

1,380

1,400

1,250

1,240

1,250

1,280

Nov.

1,340

1,400

1,460

1,270

1,280

1,300

l',310

1,300

1,330

1,340

1,330

1,260

1,320

1,350

1,410

1,450

1,480

1,300

1,330

1,380

1,430

1,460

1,510

1,540

1,340

1,370

1,410

1,480

1,510

1,550

-

Dec.

1,600

1,400

1,420

1,480

1,500

1,450

1,530

1,560

1,370

1,430

1,450

1,510

1,510

1,550

1,570

1,440

1,450

1,500

1,520

1,530

1,590

1,640

1,420

1,590

1,960

1,570

1,750

1,780

1,770

1,610

1,660

Jan.

1,630

1,620

1,650

1,670

1,650

1,510

1,530

1,530

1,540

1,580

1,530

1,480

1,370

1,420

1,460

1,480

1,500

1,510

1,570

1,370

1,410

1,400

1,430

1,460

1,510

1,530

1,310

1,330

1,360

1,380

1,410

Feb.

1,480

1,540

1,350

1,360

1,390

1,390

1,420

1,450

1,470

1,310

1,340

1,380

1,380

1,380

1,440

1,520

1,310

1,310

1,350

1,390

1,480

1,520

1,560

1,280

1,290

1,340

1,360

1,430

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

Hay

July. ..................... ................

September ..................................

Water year 1946-47 ......................

Mar.

1/530

1,580

1,350

1,350

1,380

1,370

1,420

1,630

1,790

1,390

1,420

1,470

1,510

1,530

1,550

1,560

1,350

1,370

1,400

1,470

1,490

1,530

1,600

1,380

1,360

1,410

1,410

1,440

1,520

1,600

1,320

Apr.

1,310

1,370

1,430

1,500

1,580

1,730

1,320

1,330

1,350

1,400

1,460

1,530

1,550

1,340

1,300

1,330

1,380

1,360

1,400

1,490

1,290

1,310

1,320

1,420

1,480

1,520

1,550

1,320

1,330

1,400

Secondfoot-days

48,110

510,320

40,660

521,185

Hay

1,420

1,400

1,480

1,500

1,310

1,310

1,330

1,380

1,440

1,470

1,480

1,330

1,350

1,390

1,430

1,460

1,470

1,500

1,330

1,330

1,390

1,440

1,460

1,490

1,540

1,390

1,400

1,410

1,460

1,450

1,460

Maximum

1,960

1,960

1 990

1,450

2,010

June

1,520

1,390

1,400

1,420

1,430

1,440

1,580

1,570

1,370

1,400

1,420

1,470

1,550

1,540

1,540

1,430

1,390

1,460

955

1,500

1,500

1,530

1,440

1,490

1,490

1,430

1,500

1,540

1,580

1,390

-

Minimum

1,370

1,070

955

1,290

955

July

1,410

1,450

1,6OO

1,910

1,820

1,820

1,430

1,350

1,370

1,440

1,460

1,490

1,520

1,380

1,360

1,360

1,410

1,460

1,480

1,500

1,360

1,380

1,350

1,340

1,330

1,390

1,400

1,310

1,340

1,550

2,010

Aug.

1,990

1,860

1,840

1,390

1,280

1,280

1,340

1,380

1,450

1,500

1,330

1,360

1,350

1,380

1,400

1,420

1,440

1,330

1,340

1,330

1,340

1,400

1,470

1,530

1,400

1,360

1,390

1,430

1,360

1,420

1,470

Heai

1,552

1.398

1 419

1,355

1,428

Sept.

1,370

1,360

1,370

1,380

1,370

1,410

1,410

1,350

1,360

1,370

1,370

1,360

1,400

1,440

1,300

1,300

1,300

1,300

1,290

1,380

1,450

1,310

1,340

1,330

1,320

1,310

1,390

1,420

1,300

1,300

-

Runoff in 

acre-feet

95,420

1,012,000

80,650

1,034,000
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 41

Pilot Knob wasteway near Pilot Knob, Calif.

Location.- Water-stage recorder on All American Canal 550 feet upstream from waste gates, 

lat. 32°44'15", long. 114°42'55", in NW^SWi sec. 85, T. 16 S., R. 21 E. San Bernardino meridian, 2 miles east of summit of Pilot Knob, 6 miles west of Yuma, and 20.8 

miles downstream from intake of All-American Canal at Imperial Dam. Datum of gage is 

at mean sea level, datum of 1929.

Records available.- July 1944 to September 1947.

Extremes.- Maximum daily discharge during year, 3,720 second-feet July 24; no flow Nov. 24 

to Mar. 27, May 16-20. Maximum elevation of water surface above wastewqy gates, 164.22 

feet. Apr. 19; minimum, 157.84 feet Dec. 29.

1939-47: Maximum daily discharge, 4,460 second-feet July 24, 1944; no flow during 

long periods.

Remarks.- Records excellent above 1,000 second-feet and good below. Daily discharge 

computed from head and openings of waste gates, rated by current-meter measurements 

made in Alamo Canal, and by the difference of the measured flow above a-?d 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 River through Rockwood 

gate .

Cooperation.- Record of gate openings furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

93

24

25

26

27

28

29

30

31

Oct.

1,040

930

902

798

869

875

857

834

785

771

754

725

715

689

761

782

795

713

654

730

688

541

464

380

362

321

355

379

454

437

. 437

Nov.

437

461

469

434

431

412

409

433

457

437

404

403

419

453

431

399

387

358

288

290

336

475

146

0

0

0

0

0

0

0

-

Dec. Jan. Feb.

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

May. .......................................

July .......................................

September .................... ... .........

Water year 1946-47 .... .................

 Mar.

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

907

1,760

2,800

3,440

Apr.

3,500

3,330

3,450

3,490

3,510

3,500

3,500

3,520

3,510

3,500

3,510

3,510

3,490

3,500

3,520

3,510

3,510

3,510

3,500

3,490

3,510

3,500

3,440

3,260

3,120

2,940

2,620

2,420

2,120

1,940

-

Secondfoot-days

9,169

0

515,620

71,600

72,660

504,240

May

1,700

1,360

1,150

1,070

1,080

954

1,030

1,110

1,120

1,150

1,140

1,030

965

737

132

0

0

0

0

0

1,230

806

913

1,030

1,120

1,140

1,150

1,260

1,410

1,370

1,350

Maximum

475

0

3,910

3,180

3,250

3,720

June

1,630

1,710

1,670

1,650

1,700

1,780

1,810

2,010

2,130

2,170

2,120

2,060

2,090

2,290

2,460

2,550

2,490

2,490

2,690

2,840

3,000

3,150

3,180

3,050

2,830

2,700

2,610

2,780

2,950

3,010

-

Minimum

0

0

1,630

1,170

0

July

3,030

3,040

3,370

3,480

3,470

3,510

3,510

3,510

3,510

3,510

3,520

3,500

3,490

3,490

3,510

3,510

3,500

3,510

3,490

3,490

3,490

3,510

3,660

3,720

3,700

3,690

3,700

3,570

3,420

3,440

3,490

Aug.

3,430

3,410

3,440

3,450

3,420

3,430

3,420

3,350

3,290

3,190

3,120

2,980

2,890

2,620

2,450

2,450

2,460

2,290

2,160

2,160

2,230

2,280

2,370

2,370

2,310

2,210

2,190

2,390

2,430

2,660

2,680

Me TO

306

0

1,413

3,291

2,387

2,422

1,381

Sept.

2,660

2,660

2,730

2,840

2,920

3,010

3,170

3,250

3,220

3,120

2,940

2,C80

2,770

2,740

2,680

2,450

2,330

2,310

2,280

2,200

2,140

2,040

1,920

1,750

1,650

1,710

1,840

1,820

1,460

1,170

-

Runoff in 

acre-feet

41,250

18,190

0

1,023,000

144,100

1,000,000
DIVERSIONS AND RETURN PLOWS AT AND BELOW IMPERIAL DAM

Diversions at Laguna Dam, Aris.-Calif.

Location - Laguna Dam, lat. 3£"49'30", long. 114°29'40", is a diversion dam scross Colorado Kiver, 5 miles downstream from Imperial Dam, 9 miles upstream from Gila River, and 

10 miles northeast of Yuma, Aria. Yuma Canal diverts water at California end of dam 

in SW-fNEij sec. 25, T. 15 S., R. 23 E. San Bernardino meridian, and North Gila Valley 

Canal diverts water at Arizona end of dam In 3W^ sec. 14, T. 7 S., R. 22 W. Gila and 

Salt River meridian.

Records available.- Yuma Canal: March 1910 to September 1947. North Gila Valley Canal: 

March 19at. to September 1947. Records of monthly discharge prior to Octoler 19d8 have 

been republished in Water-Supply Paper 1049.

Remarks.- Yuma Canal furnishes most of water for irrigation of the project ir California 

east of Yuma Main Canal. Records show total diversions.

North Gila Valley Canal furnishes water for irrigation of North Gila Valley, which 

lies north of Gila River In Arizona. Records show quantity of water diverted from 

Colorado River less that wasted back to river by regulation 500 feet below head gate. 

Records poor. Discharge estimated by gate tenders in the empluy of North Gila Valley 

Irrigation District.

Drain No. 1 returns some water from North Gila Valley District to Colorado River 

in NE^-NWi~ sec. 1, T. 8 S., R. 22 W. , 5 miles downstream from Laguna Dam and 14 miles 

upstream from gage jti Colorado River at Yuma. Record of drainage flow computed by 

Geul >gical Survey from 54 discharge measurements furnished by Bureau of Reclamation.

Canal wastewaVs 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 to Gila River channel in 

IIW-fUE-j sec. 22, T. 8 S., R. 22 W. Record computed from daily estimates by water 

master. ApprDximately one half of the total wasteway flow was returned to the Colorado 

Rlvei and one half to'the Gila River channel. None of the return flow to the Gila 

River channel reached the Colorado River as surface flow this year.

'"- operation.- Records _>f discharge except fur Drain No. 1 furnished by Bureau of Reclamation.

Monthly diversions, in second-feet, by Yuma and North Gila Valley Canals at Laguna Dam, 

water year October 1946 to September 1947

Month

Calendar year 1946.

Jun* ^ ...... .........

Water year 1946-47.

Yuma Canal

Maximum

223 

186 

175

229

199 

205 

E27 

236 

211 

186 

196

218

235

Min imum

50 

50 

56

5U

50

50 

52 

50 

55 

50 

50 

50

50

Mean

131 

112 

112

125

105 

135 

152 

164

lie

106 

116 

109 

146

125

Runoff in

acre-feet

8 , 070 

6,660 

6,870

90,330

6,450 

7,430 

9,260 

9,790 

7,160 

6,300 

7,150 

6,670 

8,690

90,660

North Gila Vallev Canals

Maximum

80 

9fi 

80

90

90 

80 

80 

So 

80 

70 

70 

70 

70

90

Minimum

50 

50 

40

0

40 

0 

20 

0 

0 

30 

40 

30

0

Mean

67.4 

74.2 

64.2

54.7

60.8 

68.2

53.5 

66.0 

56.8 

53.3 

57.4 

56.5 

53.7

60.9

Runoff in 

acre-feet

4,150 

4,410 

3,950

39,590

3,790 

3,290 

3,930 

3,490 

3,170 

3,530 

3,470 

3,190

44,110

Return flows, in acre-feet, from. Oila Valley District

Month

uctober. ..............

December. .............

Calendar year 1946. .

April

Water year 1346-47..

Drain No. 1

317

4,220

288

311

3,370

1F9

179

1,820

103

516

655

635

615

536

754

714

674

5,680
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM

Alamo Canal at Andrad^, Calif.

'atIon.- Staff gage supplemented by water-stage ieeorder, lat. 32°43'10", long. 

II4"43'30", In SW£SE£ sec. 35, T. 16 3., R. 21 E. San Bemardlno meridian, at Andrade, 

200 feet upstream from international boundary, 800 feet downstream frtm Hanlun heading, 

snd 1-5- miles' downstream from Ro^kwood gate.

Mirils available.- January 1908 to September 1947. Records prior to 1932 putlished in 

W'_it*:p-^apply Paper 918 as Imperial Canal at Hanlun heading, at Andrade, and in Waterui.prily Pupr-r 1043 as Alamo r*anal at Andrade.

re,:eivt!S some water frum right side of Colorado River at SE?SW? eec. 25, T. 16 ;].. R. 

21 E. S'ln Btj'i'narJino mierldian, at Rockwuod gate, 24^ miles downstream from Imperial 

Dan. Thiz ;^ar all water from Cn:t. 1 to Nov. 22, 194g. and Mar. 2^ tu Zept. 30, 1947, 

was revived frum Pilot Knob wasteway. Watei" ig used for irrigation of lands in 

tmp^rial Valley in Mexicu.

Hanlon healing is, a separate aat of gates on Alamo Canal, 1 mile below Pilot Knrb 

waateway, ust-d to '^unti^ol flow of water down canal. The gates may be operated t" allow 

Pilot Knob waetewiy water either to pass down canal or to berrtnrn-,t i: Cwl-^-i,.ihl"^i.

upAratlijM.- Record? furnished by Imperial Irrigation District; 37 discharge mrasur^metitp 

mqaA anl revrirds reviewed by Geological Siirvey.

Monthly discharge, water y?ar October 19t6 to September 1347

Month

December ..............

Calendar year 194C..

February ..............

Anrll

July..................

September ....... .....

Wat^r year 194^-47 . .

Maximum

1,791

3,89ii

1,922

3,281

3,765

Minimum

TOr)

821

286

427

n

1.A93

u

Mean

1.Z18

1,734

977

93' l

2,755

2,424

1,775

Runoff In 

acre -feet

81,030

l,255,UuO

54.25U

142, ino

169,:"']

144,20?

l,Za5,yno
44 DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM 

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

Yuma project of the Bureau of Reclamation lies on both sides of Colorado River in the 

vicinity of Yuani,

Most of the water for the project in California is diverted at Laguna Dam to the Yuma 

Canal. The remainder is supplied by the Walapai Canal, which diverts from the forebay 

of the siphon-drop power plant, and by several small canals from Yuma Main Canal between 

the power plant and Yuma Main Canal wasteway. Waste and drainage water from the 

Reservation division is collected by California Drainage Canal and is returned to Colorado 

River at the mouth of Yuma Main Canal wasteway, but the flow is not included in the 

records for the wasteway.

Water for the project in Arizona is supplied from Yuma Main Canal diverting from AllAmerican Canal. After passing through the siphun-drop power plant and returning some 

water not needed to the Colorado River through Yuma Main Canal wasteway, Yuma Main Canal 

crosses the Colorado River by means of a siphon and divides into East and West Main 

Canals of Valley division. East Main Canal extends to Arlzona-Sonora boundary and discharges waste water across the boundary. Waste water from West Main Canal is returned 

to Colorado River by Cooper, Eleven-Mile, and Twenty-one Mile wasteways which enter 

Colorado River 2-j, 5-j, and 15-J- miles, respectively, by airline downstream from Rockwood 

gate. Drainage water on Valley division is collected by Main drain which discharges 

across Arizona-Sonora boundary by pumping.

Records of monthly discharge are available as follows: California drainage canal, 

January 1913 to April 1920, October 1921 to March 1925, January 1934 to September 1947; 

Cooper wasteway, January 1934 to September 1947; Eleven-Mile wasteway, Januery 1924 to 

September 1947; Twenty-one Mile wasteway, October 1938 to September 1947; Msin drain, 

January 1919 to September 1947; East Main Canal, January 1924 to June 1928, January 1932 

to September 1947. Records of monthly discharge prior to October 1938 are published in 

Water-Supply Paper 1049.

Records furnished by Bureau of Reclamation. For record of return flows from North 

Gila Valley District see record of Diversions at Laguna Dam, Ari".-Calif.

Monthly return flows, In acre-feet, water year October 1946 to September 1947

Month

December .................

Calendar year 1946.....

September ................

Water year 1946-47.....

California 

drainage 

canal

,960 j

4 ,970

,370

54,070

wasteway

300

1,440

139

130

1,470

ElevenMile 

wasteway

7,900

51,610

3 9 9O

3,790

53,320

Twentyone Mile 

wasteway

2,500

24,370

894

1,160

18,800

Main

drain

6,723

67,830

6,770

61,600

East 

Main 

Canal

1,790

23,770

1 930

1,970

22,270
TRIBUTARIES ABOVE GUNNISON RIVER 45

Arapaho Creek at Monarch Lake Outlet, Colo.

Location.- Water-stage recorder, lat. 40°07', long. 105°45', In northeast corner of sec. 

28, 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 1947.

Extremes.- Maximum discharge during year, 970 second-feet June'9 (gage height, 4.30 

reet); minimum daily, 4.8 second-feet Feb. 15, 20, 24.

1944-47: Maximum discharge," that of June 9, 1947; minimum daily, 4.1 second-feet 

Dec. 4-6, 11, 1944.

Remarks.- Records good except those for periods of no gage-height record, vhich are fair. 

frlow partly regulated by Monarch Lake. Staff gage at winter station read twice daily 

Oct. 20 to Apr. 5.

Discharge, in second-feet, water year October 1946 to September 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.

20

20

20

18

17

16

16

18

18

17

18

20

22

21

21

20

23

30

30

28

29

29

28

28

29

30

30

31

32

31

30

Nov.

29

29

29

29

30

31

31

28

29

28

28

28

29

29

26

26

24

22

22

20

20

20

20

20

20

21

20

20

20

20

-

Dec.

20

19

19

20

19

20

20

20

20

19

19

18

17

17

17

17

16

15

16

15

15

14

14

12

13

13

12

14

11

12

12

Jan.

11

12

11

12

12

12

12

12

11

10

9.6

9.1

10

8.6

8.6

7.8

8.2

7.8

6.8

7.3

8.2

8.6

9.1

7.8

8.6

8.6

7.3

6.8

7.8

8.2

8.2

Feb.

7.8

6.0

6.8

6.0

5.2

5.5

6.0

6.0

6.8

5.5

5.2

5.0

5.5

5.0

4.8

5.2

6.0

5.2

5.5

4.8

5.2

5.5

5.0

4.8

5.0

6.0

5.0

4.8

_

_

-

Month

October .................................

November. ..................................

December ..................... A ............

Calendar year 1946 ......................

January .................................. .

February ...................................

March ........................... ........

April ......................................

May........................................

June .................... ..................

July. ................... ..................

August .....................................

September. .................................

Water year 1946-47 ......... ............

Mar.

5.2

6.0

6.0

6.0

5.5

6.4

6.4

7.8

6.8

7.8

7.3

6.O

6.4

6.4

6.0

6.0

6.8

6.4

6.0

6.4

6.4

7.8

6.0

5.5

5.2

5.5

5.5

6.4

6.8

7.8

8.2

Apr.

8.6

8.2

7.8

8.6

9.1

7.5

7.0

7.5

8.8

8.2

8.4

8.8

9.6

9.2

8.8

9.5

12

11

13

16

34

38

38

32

29

30

46

45

90

120

-

Secondfoot-clays

740

748

505

29,695.1

288.0

155.1

198.7

689.6

9,153

12,533

7,668

2,294

707

35,679.4

May

173

202

257

296

338

380

442

586

616

622

634

406

290

239

210

202

215

233

218

195

190

215

236

215

190

200

215

260

245

208

225

Maximum

32

31

20

699

12

7.8

8.2

120

634

868

454

112

34

868

June

138

188

327

344

355

334

450

868

816

458

338

248

190

205

242

352

442

526

640

828

764

505

284

230

257

317

462

480

475

470

-

Minimum

16

20

11

6.0

6.8

4.8

5.2

7.0

173

138

116

35

12

4.8

July

438

442

454

402

426

426

380

372

355

284

281

272

245

218

208

212

212

198

178

169

160

154

158

154

138

126

126

120

116

126

118

Aug.

112

108

102

106

104

96

89

82

78

86

93

100

98

86

74

67

63

61

73

72

66

63

60

56

53

50

44

42

39

36

35

Mean

23.9

24. 9

16.3

81.4

9.29

5.54

6.41

23.0

29^

418

247

74.0

23.6

97.8

Sept.

32

31

31

26

25

22

18

12

21

12

16

20

23

28

32

34

34

31

30

29

25

22

21

20

20

20

19

18

18

17

-

Runoff in 

acre-feet

1,470

1,480

1,000

58 , 900

571

308

394

1,370

18,150

24,860

15,210

4,550

1,400

70,760

Note.- No gage-height record Oct. 8-19. 'Apr. 6-30: discharge computed on basis of 1 discharge

easurement and records for stations on nearby streams.
46 TRIBUTARIES ABOVE GUNNISON RIVER 

Willow Creek near Granby, Colo.

Location.- Water-stage recorder, lat. 40°11', long. 106°00', in llWi see. 34, T. 3 N., R. 

77 W. , 200 feet downstream from Gold Run Creek and 7 miles northwest of O-ranby. 

Datum of gage Is 8,235.18 feet above mean sea level, unadjusted.

Drainage area.- 105 square miles.

Records available.- April 1935 to September 1947.

Average discharge.- 12 years, 62.0 second-feet.

Extremes.- Maximum discharge during year 656 second-feet May 8 (gage height, 4.23 feet); 

minimum daily, 9.0 second-feet Jan. 25-23, Mar. 1-5.

1935-47: Maximim discharge, 311 second-feet May 16, 1938 (gage height, 4.43 feet, 

site and datum then in use), from rating carve extended above 530 second-feet; minimom daily, 6 second-feet Feb. 17-24, 1938, Dec. 15, 16, 27, 1941.

Remarks.- Records good except those for period Oct. 1 to Apr. 18, which are fair. Water 

diverted above station for irrigation of hay meadows.

Discharge, in second-feet, water year October 1946 to September 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.

12

12

12

13

15

15

16

*15

15

15

13

14

15

14

16

17

18

18

15

16

16

17

16

17

16

14

16

15

17

18

15

Nov.

15

14

15

19

16

19

24

19

18

24

23

21

19

17 *b!5

b!5

b!4

b!4

14

14

14

14

14

14

14

14

15

15

15

15

-

Dec

14

14

14

14

14

14

14

14

14

14

14

15

15

15

15

14

14

13

13

12

12

12

IE

IE

IE

12

IE

IE

11

11

10

Jan.

10

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

10

10

10

10

10

10

9.5

9.2

9.0

9.0

9.0

9.0

9.2

9.4

9.S

Feb.

9.8

10

9.8

9.8

9.8

10

10

10

10

10

11111111 *11

11

10

10

10

10

10

10

10

10

10

' 10

10

9.5

_

_

-

Month

October. ....................... ....

November. ........................ ... ...

December .............. .................. .

Calendar year 194fi ................ ... .

January ............... .... ....... ....

February. ............. .......... ... , March. . .............. ... ... . ... .....

April . . ............... . . ... ..... .....

May .... ............. ... . . . .... ...

June ... .............. . . . . ............

July. . . .......... ........ . . ............

August. .......... . ...... ... ... .... ...

September. ... .................

Water year 1946-47 ... ....... ... ....

Mar.

9.0

9.0

9.0

9.0

9.0

9.E

9.E

9.2

9.E

9,2

9.E

9.4

9.4

*9.4

9.4

9.6

9.8

10

1011

13

16

14

13

12

13

15

17

20

21

20

Apr.

18

20

21

22

17

13

14

15

17

14

13

13

14

15

16

27

25

30

*26

36

65

93

108

90

84

90

82

70

73

87

Secondfoot-days

473

493

408

15,781.2

317.9

284.7

36E.2

1,228

11,459

7,616

2,943

938

597

27,119.8

May

123

224

298

386

482

486

506

588

566

534

530

442

382

362

366

362

358

374

378

366

354

362

362

314

283

280

286

326

280

255

244

Maximum

18

24

15

225

11

11

21

108

588

334

178

45

30

588

June

238

241

E58

272

258

248

255

290

326

280

E90

266

244

238

E44

ESS

272

290

283

276

334

283

244

227

213

210

202

199

192

185

-

Minimum

12

14

10

-

9.0

9.5

9,0

13

123

185

42

20

17

9.0

July

175

162

165

178

162

146

136

126

123

113

101

91

85

80

82

87

96

89

73

65

62

61

78

68

59

53

50

47

45

42

43

Aug.

41

36

34

35

39

36

33

31

33

45

36

42

34

32

33

29

30

32

30

27

26

6

5

4

4

2

2

1

o

0

0

Mean

If.. 5

16.4

13.2

43.2

10.3

10.2

11.7

40.9

370

254

94.9

30.3

19.9

74.3

Sept.

19

18

18

20

18

19

20

18

18

23

30

26

28

25

22

20

20

20

20

19

18

18

17

18

19

18

17

17

17

17

-

Runoff in 

acre feet

938

978

809

31,310

631

565

718

2,440

22,730

15,110

5,840

1,860

1,180

53,800

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 12-14, Nov. 19 

affected by ice during most of periods); discharge 

and weather records.

;o Apr. 18 (stage-discharge relation probably 

somputed on basis of 3 discharge measurements
TRIBUTARIES ABOVE GUNNISON RIVER 47

Fraser River near Winter Park, Colo".

Location.- Water-stage recorder, lat. 39°54'00", long. 105°46'35", in NE£ sec. 4, T. 2

 S., K. 75 W., 1^ miles northwest of Winter Park and 1\ miles, downstream from point of 

diversion for Moffat tunnel.

Drainage area.- 27.6 square miles.

Records available.- September 1910 to September 1930, September 1933 to September 1947

 in reports or Geological Survey. September 1910 to September 1947 in reports of State 

engineer. Records since June 9, 1936, equivalent to earlier records if diversion to 

Pioneer bore of Moffat tunnel is added to flow past station.

Average discharge.- 37 years, 42.1 second-feet (including diversion through Moffat tunnel).

Extremes.- Maximum discharge during year 278 second-feet June 20; maximum gage height,

 a.iiV feet Dec. 21 (ice jam); minimum daily discharge, 4.1 second-feet Oct. 6, 7, Sept. 

5, 6.

1910-47: 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 period of ice effect, which are fair. Small di-

 version through Berthoud Pass (166 acre-feet 1946-47). Considerable portion of flow 

above station diverted to Pioneer bore of Moffat tunnel.

Cooperation.- Records of flow diverted to Pioneer bore of Moffat tunnel furrished by 

State engineer.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

171-8

19

20

21

22

23

24

25

26

27

28

29

30

31

- Oct.

4.8

5.2

5.5

5.0

*5.0

4.1

4 1

4.5

5.0

4.8

4.5

11

10

11

10

8.6

6.6

8.3

11

11

9.9

9.5

9.9

9.9

19

17

16

15

16

15

15

Nov.

15

12

10

10

12

13

15

16

16

16

15

*16

16

16

15

15

16

16

14

13

12

11

11

10

9.5

9.0

9.0

10

11

11

-

Dec.

11

11

11

11

11

11

10

10

10

9.5

9.5

9.5

9.3

9.0

8.5

8.2

*8.2

8.0

8.2

8.4

8.2

8.4

8.4

8.4

8.4

8.4

8.4

8.2

8.0

7.6

7.6

Month

October. ...............

November. ..............

December. ...........

Calendar year 1946 . .

January. ...... .... . .

February. ......... . . . March ........... . . . . .

April. .......... .

May... ........ ...

June. ..... . . .........

July.. .... ............

August ........... ... .

September. .............

Water year 1946-47 .

Jan.

7.8

7.8

8.0

8.0

8.0

8.0

8.0

7.9

7.9

8.0

8.0

8.2

8.2

8.0

7.8

7.5

7.2

7.2

7.0

7.0

7.0

6.8

6.8

6.8

6.9

6.9

*6.9

6.6

6.6

5.8 - 5.5

Feb.

5

5

5

5

5

5

5

5^

5

5

5

*5

5

5

5

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

6,

_

-

2

4

5

5

2

2

2

O

O

2

2

5

5

5

5

5

5

2

5

5

5

5

5

5

5

3

2

0

Mar.

5

6

7

7

6

6.

6.

6.

6.

*6.

6.

6.

6.

6.

6.

6.

6.

6.

6.

6.

7.

7.

7.

7. 6'.

6.

7.

7.

6.

6.

6.

5

5

2

2

8

5

5

5

5

5

5

5

4

4

4

4

5

6

8

8

0

0

O

0

9

8

0

0

e

8

8

Apr.

8

8

9

9.

9.

10

12

14

18

*25

19

15

12

13

14

14

15

18

-

0

2

2

O

O

4

6

6

6

4

4

6

0

5

2

2

2

Hay

26

33

38

78

97

85

101

123

109

72

41

35

33

32

32

32

32

32

32

32

31

31

31

30

30

29

27

30

29

26

25

Ob^rved

Second- Maxi 

foot days

292.2 19

390.5 16

282.3 11

3,487.8 54

228.1 8.2

150.8 6.0

206,9 7.2

331.1 25

1,414 123

5,029 248

1,999.9 200

566.1 fiO

1 39 . 3 6.9

11,030.2 248

Minimum

4.1

9.0

7.6

3.6

5 s'o5

5.5

7.0

25

25

5.9

4.5

4.1

4.1

Mean

9.43

13.0

9.11

9.56

7.36

5.39

6.67

11.0

45.6

168

64.5

18.3

4.64

30.2

Runoff In 

acre-feet

580

775

560

6,920

452

299

410

2,800

9,970

3,970

1,120

276

T 1,870

June

25

25

25

53

109

111

141

192

238

168

150

162

165

158

150

160

205

248

242

235

228

238

182

165

168

192

212

225

232

225

-

July

198

200

178

190

172

143

78

52

20

76

139

129

125

119

62

13

11

8.6

7.6

7.2

7.2

7.2

7.6

6.9

6.6

6.2

5.9

5.9

5.9

6.2

5.9

Diversions

to 

Moffat

tunnel 

(acre-feet)

290

0

0

17,050

0

0

n

0

3,210

1 , 580

3,58n

2,050

1,310

12,02:

Aug.

5.

5.

5.

5.

6.

5.

5.

5.

5.

28

55

60

52

49

47

46

42

42

26

6.

5.

5.

5.

6.

5.

8.

4.

4.

4. 4.'

4.

Adjuste

divers

Runoff In 

acre-feet

870

775

560

23,960

452

299

410

657

6,010

11,550

7,550

3,170

1 , 590

33,890

9

9

9

9

6

5

5

5

9

2

9

5

5

2

5

6

8

8

5

5

5

Sept.

4.3

4.3

4.3

4.3

4.1

4.1

4.8

5.0

4.8

6__.2

6.9

6.2

5.2

4.8

4.5

4.5

4.5

4.5

4.5

4.3

4.3

4.3

4.3

4.5

4.5

4.3

4.3

4.3

4.3

4.3

-

d for

ion

nean 

(secondfeetT

14.1

13.0

9.11

33.1

7 .36

5.39

6.67

11.0

97.7

194

123

51.5

26.7

46.8

Winter discharge measurement made on this day.

ote - Stage-discharge relation affected by Ice Nov. 3 to Apr, 21 (no 

. 16, Jan. 17-26, Feb. 19 to Mar. 9, Apr. 9-21; discharge computed o

gage-height record Nov. 20 t 

i basis of weather records).
TRIBUTARIES ABOVE GUNNISON RIVER

Fraser River at Granby, Colo.

Location.- Water-stage recorder, lat. 40°05', long. 105°57 1 , in sec. 1, T. IN., R. 76j 

W., Just downstream from Tenmile Creek, half a mile southwest of Granby, and 2j miles 

upstream from mouth.

Drainage area.- 285 square miles.

Records available.- September 1937 to September 1947. August 1904 to September 1909 at 

site Just Delow Tenmile Creek. Records since September 1937 equivalent to earlier 

records if diversion to Pioneer bore of Moffat tunnel is added to flow past station.

Average discharge.- 15 years, 201 second-feet (Including diversion to Moffat tunnel).

Extremes.- Maximum discharge during year, 1,520 second-feet June 22 (gage height, 3.16 

1'eet); minimum daily, 31 second-feet Oct. 1, 2.

1904-9, 1938-47:- Maximum daily discharge, 1,860 second-feet June 14, 15, 1906; 

minimum daily, 14 second-feet Sept. 22, 1944.

Remarks.- Records excellent except those for period of ice effect, which are fair. Diversion above station to Pioneer bore of Moffat tunnel.

Cooperation.- Records of flow diverted to Pioneer bore of Moffat tunnel furnished by 

S^ tate engineer. '

Rating table, water year 1946-47, except periods of ice effect 

(gage height, in fee.t, and discharge. In second-feet)

142

335

1.9 

2.4 

3.1

520

850

1,470

Discharge, in second-feet, water year October 1946 to September 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.

31

31

41

42

56

54

51

47

49

53

45

60

82

76

87

87

80

76

78

73

80

80

7S

80

76

82

78

76

80

80

73

Nov.

66

69

60

80

82

90

80

78

69

80

71

71

80.

76

*68

66

62

60

60

62

62

60

62

62

62

60

60

62

62

62

-

Dec.

fo

58

58

58

56

54

52

52

52

52

52

52

52

50

50

47

47

44

44

*42

43

43

43

42

42

44

44

43

42

41

41

Month

October. ...............

November. ..............

December. ..............

Calendar year 1946 . .

January. ...............

February ...............

March. .................

'April ..................

May. ...................

June ...................

July. ..................

August. ................

September. .............

Water year 1946-47 . .

Jan.

3

Secondfoot-days

2 ,062

2,044

1,500

45,644

1,202

1,050

1,480

4,021

18 ,456

28,221

13,016

4,151

2,085

79,288

42

43

43

43

42

41

40

39

39

40

40

40

40

39

39

38

37

38

38

38

37

37

37

36

36

36

36

36

37

37

38

Feb.

38

38

38

37

37

37

38

38

38

37

37

37

36

36

*37

37

37

38

37

37

37

37

38

39

38

39

Maximum

87

90

60

718

43

39

74

271

l.OOO

1 *922 450

217

133

1,450-

39

38

Mar.

39

40

40

40

39

39

40

41

40

40

40

*40

40

42

44

44

44

44

45

47

50

54

60

54

50

52

58

64

68

74

68

Apr.

62

56

72

68

62

62

52

52

56

70

74

1

32

32

33

151

151

1

1

*1

36

30

36

142

242

2

2

1

71

58

38

145

154

2

1

1

2

Observed

Minimum Mean

31 66.5

6O 68 . 1

41 48.4

30 125

3fi 38 8

3fi 37*5

39 47 * 7

62 134*

284 595

139 42O

73 134

54 69.5

31 217

23

98

94

39

May

284

411

500

580

724

738

773

914

993

939

1,000

780

675

628

550

532

532

604

604

562

510

532

526

475

430

435

435

544

465

393

388

Runoff in 

acre-feet

4,090

4,050

2 , 9SO

90,550

2 380

2! 080

2,940

7,980

36,610

55,980

25,820

8,230

4,140

157,300

June

380

402

430

598

647

610

759

1,140

1,320

1,100

957

1,070

1,010

930

829

850

993

1,110

1,220

1,330

1,450

1.400 1

1,120

890

815

882 9as

993

1,020

1,000

-

July

922

898

906

836

822

773

604

574

515

532

562

490

435

402

398

384

343

262

217

201

194

217

230

214

185

166

154

151

139

148 142'

Diversions

to

Moffat 

tunnel 

(acre-feet)

715

0

0

32,030

0

o

0

0

6,040

2,570

6>030

5,360

2,880

23,600

Aug.

145

136

142

148

151

136

125

128

130

201

182

217

207

172

163

154

154

154

160

119

108

105

103

105

108

97

92

82

78

76

73

Sept.

69

66

62

66

62

62

64

66

69

82

133

108

100

87

73

71

69

66

64

64

62

60

60

60

60

58

56

56

54

56

-

Adjusted for

diversion

Runoff in 

acre -feet

4,800

4,050

2,980

122,600

2 , 380

2,080

2,940

7,980

42,650

58,550

31 ,650

13,590

7,020

180,900

Mean 

(secondfeet)

78.0

68.1

48.4

169

38.8

37.5

47.7

134

693

984

518

221

118

250

* Winter discharge measurement made on this day.

M°te.- Stage-discharge relation affected by Ice Hov. 13 to Apr. 13 ( 

16-20, Feb. 16 to Mar. 17, Apr. 4-13; discharge computed on basis of 1 

weather records).

no gage-height record Jan. 

discharge measurement and
TRIBUTARIES ABOVE GUNNISON RIVER 49

Vasquez Creek near Winter Park, Colo.

Location.- Water-stage recorder, lat. 39°55 1 15", long. 105°47 I 0511 , in NW£ sec. 33, T. 

1 S., R. 75 W., a quarter of a mile upstream from mouth, ij miles downstream from 

Moffat tunnel diversion, and 2f miles northwest of Winter Park. Datum of gage is 

8,768.48 feet above mean sea level, unadjusted.

Drainage area.- isc-S square miles.

Records available.- June 1907 to October 1909, August 1934 to September 1947. Records 

since May 26, 1937, equivalent to earlier records if diversion to Pioneer bore of 

Moffat tunnel is added to flow past station.

Average discharge.- 13 years (1934-47J, 33.5 second-feet (including diversion to Moffat 

tunnel ). '

Extremes.- Maximum discharge during year, 225 second-feet June 21 (gage height, 2.46 

reet); minimum daily, 0.6 second-foot July 19.

1934-47: Maximum discharge, 396 second-feet June 15, 1935 (gage height, 2.64 feet); 

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. Diversion above station to Pioneer bore of Moffat tunnel'.

Cooperation.- Records of flow" diverted to Pioneer bore of Moffat tunnel furnished by State 

engineer.

Discharge, in second-feet, water year October 1946 to September 194T

Day

1

2

3

4

5

6

7

8

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

1.2

1.4

1.4

 1.8

1.5

1.5

1.4

1.4

1.6

1.8

17

15

16

13

13

14

14

13

15

15

14

13

13

12

13

12

13

13

12

14

Nov.

16

14

12

11

11

12

12

12

12

12

11

 12

12

12

12

11

12

12

11

10

9.5

9.5

9.1

9.1

8.5

7.7

7.8

7.9

8.3

8.5

-

Dec.

8.5

8.5

8.5

8.5

8.7

8.7

8.7

8.7

8.3

8.0

8.3

8.3

8.3

.2

.5

.5

* .5

.0

.0

.6

..4

.4

.6

.6

.4

.6

.9

.5

.2

.2

.5

Month

October. ...............

November ...............

December. ..............

Calendar year 1946 . .

January. ...............

February ...............

March...... ............

April............ ......

May. ...................

June. ..................

July. ..................

August .................

September. .............

Water year 1946-47 . .

Jan.

.5

.5

.8

.9

.9

.8

.8

.8

.8

.8

.8

.9

.9

.9

.5

7.2

(

(

(

>.8

5.8

5.8

e. a

6.8

(

(

(

»(

>.4

.4

.8

.8

6.8

e

(

f

f

>.8

>.8

>.8

.8

6.8

Feb.

6

6

e

6

6

6

6

6

6

6

7

*7

6

6

6

7

6

6

6

6

6

6

6

6

6

6

5

6

.8

.8

.8

.8

.8

.8

.8

.8

8

8

0

2

8

8

8

2

8

4

4

4

4

4

4

4

4

4

4

4

Mar.

5

7

7

7

6

6

6

6

6

6

6

»6

5

5

5

5

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

8

5

9

9

8

4

4

1

1

1

1

1

8

8

8

8

1

1

1

1

1

2

4

4

6

2

6

4

4

1

4

Apr.

6.1

6

6

6

6

4

4

4

1

7.0

7

7

6

6

0

2

4

4

6X4

6

6

7

7

7

6

6

7

8

*12

14

13

12

10

12

11

9

10

12

4

4

0

2

0

8

8

2

7

9

May

14

28

43

59

67

69

77

90

96

88

36

48

4.2

27

11

3.0

28

44

47

38

11

3.0

7.0

13

15

6.1

6.1

7.5

6.4

6.1

6.1

Observed

Secondfoot-day s

290.0

324 . 9

243!e

2,293.2.

225 0

186. 0

196 6

251.2

1,042.3

4,558.4

2,635.1

103.2

49.8

10,106.1

Maximum

17

1 C. ib

8.7

28

7.9

7.2

7.9

14

no 3D

206

195

4.4

2.8

206

Minimum

1.0

7.7

7.0

0

6.4

5.4

5 8

6.1

3.0

4.0

. 6

2.0

1.2

.6

Mean

9.35

7!86

6.28

7 26

6.64

6 34

8 37

33* 6

152

3.33

1.66

27.7

Runoff In 

acre-feet

575

644

483

4,550

446

369

390

498

2,070

9,040

5,230

205

99

20,050

June

5.4

4.0

14

96

94

94

117

154

186

170

162

154

152

158

160

160

168

184

188

206

203

192

190

186

179

184

195

201

201

201

-

July

195

192

192

181

179

173

166

160

156

150

146

137

128

117

114

117

64

2.4

.6

3.0

6.4

5.4

6.4

6.8

6.4

5.8

5.4

5.4

5.0

4.7

4.4

Diversion's 

to 

Moffat

tunnel 

(acre-feet)

426

O

0

14 , 980

O

0

O

0

2,840

987

2,450

3,310

1,560

11,570

Aug.

4.

4.

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

4.

3.

3.

3.

3.

3.

4.

3.

3.

3.

3.

3.

3.

2.

2.

2.

2.

2.

2.

Aijuste 

divers

RunoT in 

acre -feet

1,000

S44

483

19,530

446 1

4,

10,

7,

3,

1,

31,

369

390

498

910

030

680

520

660

630

4

0

8

8

8

6

4

4

4

8

6

6

O

8

6

4

4

4

0

4

2

2

2

2

0

8

4

2

2

2

0

Sept.

2.0

2.0

2.0

2.0

1.9

1.9

2.0

2.0

2.2

2.6

2.8

2.6

2.0

1.6

1.5

1.4

1.4

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.2

1.2

1.2

1.2

1.3

-

d for 

ion

Mean (secondfeetT

16.3

10.8

7.86

27 .O

7.26

6.64

6.34

8.37

79.8

169

125

57.2

27.9

43.7

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 3-7, 12-16, 25-27, 30, Dec. 1-5, 10-12, 17-26, 

Jan. 1-12, Feb. 9-11, Mar. 21-28 and Apr. 5-7, 12-18. No gage-height record May 8-25 and July 18-20j 

discharge computed on basis of 1 discharge measurement, records for St. Louis Creek near Fraser, and 

records of diversions.
50 TRIBUTARIES ABOVE GUNNISON RIVER

St. Louis Creek near Fraser, Colo.

Location.- Water-stage recorder, lat. 39°54'45", long. 105°52'35", in sec. 34, T. 1 S. , 

H Yb N., a third of a mile downstream from confluence of East and West Branches and 

4-j miles southwest of Fraser.

Drainage area.- 32,8 square miles.

Records available.- August 1934 to September 1947.

Average discharge.- 13 years, 37,0 second-feet.

Extremes.- Maximum discharge during year, 276 second-feet July 2 (gage height, 2.37 

feet); minimum daily, 6.5 second-feet Feb. 13, 14.

1934-47: 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 excellent above 50 second-feet and good below, except thorae for period 

or ice effect or no gage-height record, which are fair. No regulation o" diversion.

Discharge, in second-feet, water year October 19*6 to September 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.

15

16

18

18

19

16

16

16

16

15

18

16

16

18

16

16

16

16

16

17

16

15

16

15

14

14

14

14

14

14

13

Nov.

12

11

11

15

14

14

15

14

14

14

13

13

*14

14

13

14

14

13

13

13

13

13

13

13

12

12

13

13

12

12

-

Dec.

12

12

10

10

11

11

10

10

9.2

9.2

10

10

10

9.6

8.8

8.8

8.8 *8.8

8.5

8.2

8.0

8.0

.8

.8

.8

.8

.8

.8

.8

8.0

8.0

Jan.

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.2

8.2

8.2

8.2

8.0

8.0

8.0

7.8

7.5

7.5

7.8

8.8

8.2

7.8

7.8

7.8

*7.8

7.8

7.8

8.2

8.0

8.0

7.8

Feb.

7.5

7.5

7.0

7.O

6.8

6.8

7.2

7.0

7.0

7.2

6.8

6.8

*6.5

6.5

6.8

6.8

6.8

6.8

6.8

7.0

6.8

6.8

6.8

6.8

7.0

7.2

7.5

7.5

-

_

-

Month

December. ............. ....................

Calendar year 1946 ........ .............

March. .....................................

April. ....................... .............

May. ......................... .............

July. ......................................

September. ................... ... ..... ...

Water year 1946-47 ................ .....

Mar.

7.5 8.0

8.0

8.5

8.8

8.5

8.2

8.2

8.8

9.Z

*9.Z

9.2

9.2

9.2

9.2

9.2

9.6

9.Z

9.Z

9.0

9.0

9.4

9.9

9.4

9.2

9.2

9.2

9.2

9.2

9.2

9.2

Apr.

9.2

9.2

9.2

9.6

9.4

9.6

9.9

9.9

8.2

8.2

8.5

9.2

9,5

10

9.9

9.6

11

9.2

8.2

8.5

*8.8

11

9.9

8.0

8.0

9.2

9.2

8.5

8.5

11

-

Secondfoot days

394

Z82.5

12,546.5

948

16,570.8

May

14

23

36

45

52

51

55

64

74

74

70

59

56

59

58

58

58

60

61

63

66

70

70

67

69

74

78

85

75

72

74

Maximum

12

210

38

264

June

77

87

96

102

96

104

138

192

195

160

138

122

116

118

122

140

162

183

201

237

264

222 

183

168

171

201

219

231

237

240

-

Minimum

7.8

_

27

6.5

July

240

249

246

249

246

234

228

219

207

198

186

174

160

148

162

160

145

136

127

122

116

114

114

108

102

94

91

87

91

87

84

Aug.

78

78

75

75

74

67

66

64

72

74

67

69

63

58

54

52

52

54

50

46

46

45

44

44

41

39

37

36

35

35

33

Mean

9.11

34.4

31.6

45.4

Sept.

32

31

31

30

29

29

28

27

30

38

38

37

37

36

35

35

35

34

34

33

32

31

30

30

30

28

27

27

27

27

-

Runoff in 

acre-feet

560

24,880

 10 -J

1,880

32,870

Winter discharge measurement made on this day. 

Note. - Stage-discharge relation affected by Ice Nov. 1-5, 11-14, 17-21, Dec. 18 to M-ir. 3, Mar. 10 

13, 20-22, 24-28, 30, Apr. 5, 12-14. No gage-height record Nov. 23 to Dec. 17 (stage-discharge 

relation affected by Ice during most of period); discharge computed on basis of weather records and 

records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER S\ 

Ranch Creek near Fraser, Colo.

Location.- Water-stage recorder^ lat. 39°55'15", long. 105°47 1 05", in NW^- sec. 22, T. 

1 3., K. 75 W., 150 yards downstream from South Fork and 3 miles east of Fraser.

Drainage area.- 19.9 square miles.

Records available.- August 1934 to September 1947.

Average discharge.- 13 years, 20.8 second-feet.

Extremes.- Maximum discharge during year, 218 second-feet June 20 (gage height, 2.97 

feet);' minimum daily, 2.5 second-feet Mnr. 12-17.

1934-47: 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.- Rec&rds excellent except those for periods of ice effect, which are fair. No 

diversion above station.

Rating table, water year 1946-47, except periods of Ice effect

(gage height, In feet, and discharge, In seeond-feet) 

(Shifting-control method used Oct. 1-31, Nov. 27 to Dec. 5n)

2.0 

5.0 

4,5 

6,5

70

112

194

Discharge, in second-feet, water year October 1946 to September 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.

4.7

5.3

P.l

6.3

7.0

6.1

6.1

5.7

6.1

6.1

6.5

6.1

6.3

8.8

7.2

6.3

6.3

6.1

6.8

8.5

7.0

6.1

5.7

5.7

5.7

5.7

5.7

5.7

5.9

5.5

5.9

Nov.

5 4

5.2

5,2

5.6

6 0

6.5

6.1

5.9

5.9

5.9

5.9

6.1

*6.1

5.7

5.7

5.7

5.9

5.5

5.5

5.5

5.5

5.3

5.3

5.1

4.8

4.9

4.9

4.9

4.9

4.9

-

Dec.

4.7

4.7

4.7

4.7

4.7

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.4

*4.4

4.2

4.2

4.2

4.2

4.2

4.2

4.0

4.0

3.9

3.9

3.8

3.8

3.8

3.7

Jan.

3.7

3.8

3.8

4.0

4.1

4.0

4.0

4.1

4.1

4.2

4.1

4.0

4.0

4.1

4.1

4.0

4,0

4.0

4.0

4.0

4.0

3.9

*3.9

3.4

3.3

3.3

3.2

3.0

3.0

3.0

3.0

Feb.

3.0

3.1

3.3

3.0

3.0

2.9

2.8

2.7

2.7

2.8

3.2

2.9

*3.0

2.9

2 9

2.8

2.7

2.7

2.6

2.6

2.6

2.7

2.7

2.7

2.7

2.7

2.7

2.6

_

-

Month

October. ..................... .............

November. .................. ..... .........

December ............. .... ....... ....

Calendar year 1946 .......... ........

January. .... ........................ . .

February .... ............... .... .....

March. . . ... .............. . .......

April . . ...... ....... ... . . ....... . May..... ....... ... ................ ...

June . ...... . . .............. .... ....

July. ... ......... ...... ... ..... ...

August. . ......... ...... .... ...... ...

September ... ..... ........... .......

Water year 1946-47 ...... . . ...........

Mar.

2,7

2.9

2.9

2.9

2.8

2.8

2.8

2.8

2.8

*2.8

2.5

2.5

2.5

2.5

2.5

2.5

2.6

2.6

2.6

2.7 2.7

2.8

2.7

2.9

2.7

2.7

2.8

2,9

2.8

2,8

Apr.

3.0

3 . 2

3.2

3.0

3.2

3.0

3,2

3, 2

3.2

3.0

3.0

3.0

3.0

3.8

4.3

4.3

4.2

4.2

3.9

5.5

*7.0

8.8

8.0

6.5

6.3

7.8

6.8

5.9

6.3

7.0

-

May

10

20

27

36

43

45

51

60

66

85

88

70

64

61

' 59

59

60

62

59

61

65

66

62

58

59

61

63

69

59

56

56

Second Maximum 

foot-days

193 0

165.8 6.5

133.4 4.7

5,344.6 108

117.1 4,2

79.0 3,3

84.3 2,9

140.8 8.8

1,759 88

3,521 2O2

1,950 135

564 24

351.2 17

9,058,6 202

June

58

65

72

77

76

81

114

165

152

123

107

95

89

86

87

96

112

135

167

191

202

165

132

108

102

114

130

142

144

134

Minimum

4.7

4.8

3.7

3.7

3.0

2.6

2.5

3.0

10

58

12

9.6

2 5

July

127

128

135

122

124

122

113

107

82

73

66

59

54

50

47

49

47

43

37

36

38

36

36

34

33

31

27

23

22

24

25

Aug.

24

24

24

23

24

22

20

20

20

19

23

22

20

19

18

17

17

19

17

16

15

16

15

17

16

14

14

13

12

12

12

Sept.

ll

ll

ll

ll

ll

13

14

11

11

14

16

17

16

15

14

12

12

11

11

11

1C

10

9.9

10

10

9.9

9.6

9.6

9.6

9.6

-

Mean acre feet

6 = 23 383

5.53 329

4.30 265

14.6 10,590

3.78 232

2.82 157

2.72 167

4.69 279

56.7 3,490

117 6,980

62.9 3,870

18.2 1,120

11.7 697

24,8 17,970

* Winter discharge measurement made on this day.

Note.- Stagp -discharge relation affected by ice Nov. 1-5, 24-26, Dec, 31 to .Tan 1~ , Jan ;> tj

Ppb. 2, Feb. 8-10, Apr. 11-17.
52 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. 1 S., 

K. Yb W., a quarter of a mile upstream from Meadow Creek and ! § 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 1947.

Average discharge.- 13 years, 39.9 second-feet.

Extremes.- Maximum discharge during year, 416 second-feet June 21 (gage height, 3.82 

reetj; no flow Feb. 13 (field observation) and may have been no flow on other days 

during period of ice effect.

1934-47: Maximum discharge, 506 second-feet June 15, 1935 (gage height, 4.40 

feet), from rating curve extended above 250 second-feet; no flow Feb. 15 to Mar. 13, 

1937, Feb. 13, 1947, and perhaps other days in winter months.

Remarks.- Records good except those for period of ice effect, which are fair. Several 

small diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 19A7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.0

10

12

12

16

13

13

11

12

13

11

12

14

13

14

14

15

13

14

12

13

12

12

12

12

11

12

12

12

12

11

Nov.

9.4

9.0

10

13

14

14

13

13

14

13

13

13

*15

14

13

13

12

12

12

12

12

11

11

11

10

10

11

11

10

10

Dec.

 6.5

(*)

Jan.

> 3.0

(*)

Feb.

(*)

 1.5

_

_

-

Month

October ....................................

November ......................... .........

December. ...................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. .... .................................

August .....................................

September ........ ....... .................

Water year 1946-47 ....... ..............

Mar.

(*)

 4.5

Apr.

6.8

7.0

7.2

7.4

7.4

7.6

7.6

7.8

7.8

7.8

8.0

8.2

8.5

8.8

9.4

10

11

13

20 *30

36

45

45

32

30

38

41

34

31

37

-

Secondfoot-days

384.0

358.4

201.5

12,201.8

93.0

42.0

139.5

570.3

4,338

5,969

2 , 658

808

480

16,041.7

May

56

84

98

112

120

130

144

168

176

190

230

180

152

144

142

146

148

164

158

*156

156

154

160

132

124

116

114

146

124

107

107

Maximum

16

15

209

_

45

230

404

174

38

29

404

June

104

116

126

140

130

134

170

248

272

218

196

192

186

168

152

164

182

204

245

332

404

329

235

186

172

178

192

200

200

194

-

Minimum

9.0

9.0

_

_

6.8

56

104

32

16

13

-

July

174

172

170

160

150

138

130

126

124

112

96

83

74

70

68

74

72

74

63

58

55

53

56

51

44

42

38

33

32

32

34

Aug.

34

33

32

33

36

32

28

28

27

32

32

38

32

26

26

23

24

26

28

22

21

21

22

23

23

20

19

18

17

16

16

Mean

12.4

11 . 9

els

33.4

3.0

1.5

4.5

19.0

140

199

85.7

26 . 1

16.0

43.9

Sept.

15

14

13

13

13

13

13

14

14

19

29

23

27

24

20

17

16

16

16

16

14

14

13

14

14

13

13

13

13

14

-

Runoff in 

acre-feet

762

711

400

24,200

184

83

277

1,130

8,600

11,840

5,270

1,600

952

31,810

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 1 to Apr. 22 (no gage-helpht record Nov. 25 

to Dec. 17, Jan. 2-21, Mar. 12-17, Apr. 10-19; discharge computed on basis of 1 discharge measurement 

and weather records).
TRIBUTARIES ABOVE GUNNISON RIVER 53

Meadow Creek near Tabernash, Colo.

Location.- Water-stage recorder, lat. 40°02'55", long. 105°46'30", in sec. 15, T. 1 N.,

 K. 7b W., 5 miles northeast of Tabernash.

Drainage area.- 7.0 square miles.

Records available.- May 1936 to September 1947 (no winter records 1941-44).

Extremes.- Maximum discharge during year, 197 second-feet June 8 (gage height, 3.56

 feet), from rating curve-extended above 65 second-feet; minimum daily recorded, 0.4 

second-foot Oct. 1, probably less during period of no gage-height record.

1936-47: 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 affected periods.

Revision.- The maximum discharge and gage height for the water year 1945 have been 

revised to 169 second-feet June 13, 1945 (gage height, 3.38 feet), superseding 

figures published in Water-Supply Papers 1039 and 1059.

Remarks.- Records good except those below 10 second-feet and those for period of no 

gage-height record, which are fair. No diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

0.4

.7

1.2

1.2

1.6

1.4

1.5

1.4

1.3

1.5

1.3

1.3

1.5

1.5

1.5

1.5

1.5

1.4

1.3

1.4

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

Nov.

(*)

1.1

-

Dec.

0.8

(»)

Jan.

0.4

(*)

Feb.

(»)

0.5

-

_

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July...... .................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

>.

(»)

1.2

Apr.

1.3

1.4

1.3

1.3

1.3

1.3

1.3

1.4

1.4

1.3

1.3

1.3

1.4

1.4

1.5

1.6

1.8

2.0

2.1

2.5

3.5

5.2

5.0

4.8

4.6

5.4

6.0

5.2

6.0

7.5

Secondfoot-days

42.9

33.0

24.8

3,213.0

12.4

14.0

37.2

83.4

1,501

1,872

568.1

169.1

74.1

4,432.0

May

11

20

25

30

37

45

52

58

62

r 65

75

60

54

52

52

52

54

58

56

56

56

*58

54

40

42

52

51

53

42

36

43

Maximum

1.6

-

107

_

_

7.5

75

136

43

11

6.2

136

June

44

51

54

56

53

59

89

136

97

60

48

42

47

56

56

63

66

73

80

86

105

68

48

42

42

47

54

53

50

47

Minimum

0.'

.

_

_

_

1. 11

42

5.(

2.'

1.-

-

July

42

43

41

36

35

33

28

26

27

23

19

17

16

14

14

16

14

13

11

10

9.8

11

12

9.8

8.0

7.2

6.5

5.8

6.5

7.5

6.0

Aug.

6.0

5.4

7.5

9.2

7.5

6.5

5.6

5.6

6.0

10

9.2

11

9.2

6.2

5.4

5.2

5.2

5.6

5.4

4.0

3.7

3.6

3.6

3.5

3.4

3.0

2.7

2.6

2.5

2.4

2.4

Mean

L 1.38

1.1

.8

8.80

.4

.5

1.2

5 2.78

48.4

62.4

J 18.3

I 5.45

5 2.47

12.1

Sept.

2.1

2.0

2.0

2.1

1.9

1.9

2.0

2.0

2.0

3.2

4.8

5.4

6.2

4.6

3.1

2.6

2.4

2.2

2.2

2.1

2.0

1.8

1.7

1.9

2.1

1.7

1.6

1.5

1.5

1.5

Runoff in 

acre-feet

85

65

49

6,380

25

28

74

165

2,980

3,710

1,130

335

147

8,790

* Winter discharge measurement made on this day.

Note.- No gage-height record Oct. 7 to May 21 (stage-discharge relation probably affected by lee 

during moat of period); discharge computed on basis of 5 discharge measurements, weather records, 

and records for stations on nearby streams.
54 TRIBUTARIES ABOVE GUNNISON RIVER 

Williams River near Leal, Colo.

Location.- Water-stage recorder, lat 39°50', long. 106°03', in sec. 31, T. 23., 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 1947 in reports of Geological Survey, July 

1933 to September 1947 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.- 14 years, 105 second-feet (including diversion to Jones Pass tunnel).

Extremes.- Maximum discharge during year, 1,210 second-feet Ju.ie 21 (gage height, 3.68 

feet) ; minimum daily, 18 second-feet Jan. 29, 31, Feb. 1-9, 15-18.

1933-47: 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. Diversion above station to Jones Pass tunnel. 

Cooperation.- Records of diversion to Jones Pass tunnel furnished by State engineer.

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

36 

36 

39 

38 

41

36 

38 

36 

39 

39

34 

34 

39 

38

40

40 

40 

38 

36

37

38 

38 

39 

39 

39

38 

39 

38 

39 

39 

36

Nov.

29 

29 

32 

36 

35

35 

32 

35 

34 

32

30 

32 

33 

33 

34

»32 

32 

33 

32 

32

32 

32 

32 

33 

31

31 

33 

32 

31 

29

Dec.

30 

31 

28 

29

30

29 

29 

28 

26

26

28 

28 

28 

28 

26

26 

26 

b23 

23 

25

*24 

25

25

24 

24

24 

24 

24 

b21 

b21 

b20

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1946

1. ...........

ter year 1946-47 . .

Jan.

21 

20 

20 

2o 

20

20 

20

20 

21 

20

2O

20 

20 

20 

*b20

b20 

20 

20 

20 

20

20 

20 

19 

19 

19

19 

19 

19 

18 

19 

18

Secondfoot days

1,176 

968 

803

30,525

611 

519 

624 

753 

6,487 

16,550 

14,955 

3,252 

2,025

48,723

Feb.

18 

18 

18 

18 

18

18 

18 

b!8 

D18 

19

19 

19 

19 

19 

18

18 

18 

19 

19

19 

19 

19 

19 

19

L9 

19 

19

Maximum

41 

36 

31

672

21 

19 

21

39 

299 

1,020 

916 

194 

103

1,020

Mar.

b!9

20 

20 

20 

21

20 

20 

21 

21

20

21 

21 

21 

20 

»20

'20

20 

20 

20 

20

20 

20 

21 

20 

20

20

20 

19 

20 

19

Apr.

20 

20 

21 

20

20

20 

20 

20 

21 

21

20 

20 

20 

20 

20

20 

21 

24 

24 

23

31

39 

39 

33 

31

32 

35 

32 

32 

34

May

42 

74 

118 

171 

216

218 

223 

265 

299 

299

293 

223 

194 

199 

197

190 

185 

194 

185 

204

214 

233 

233 

214

206

226 

244 

271 

228 

211 

218

ibserved

Minimum

34 

29 ' 20

20

18 

18

19 

20 

42 

223 

205 

62 

49

18

*« 'acrf-Le?

37 . 9 2 , 330 

32.3 1,920 

25.9 1,590

83.6 60,530

19.7 1,210 

18.5 1,030 

20.1 1,240 

25.1 1,490 

209 12,870 

552 32,83u 

482 29,660 

105 6,450 

67.5 4,020

133 9fi,640

June

223 

257 

307 

325 

299

302 

596 

635

667 

500

442 

378 

347 

350 

372

422 

505

eon

730 

862

1,020 

802 

620 

550 

540

645 

778 

856 

898 

922

July

86E 

898

880 

862

80S

76C 

712 

672 61E"

56C 

50C 

454

422 

40 

43C 

40C 

368 

337 

31 6

302 

293 

304 

27S 

257

241 

233 

221 

221 

214 

206

Diversions 

to 

Jones Pass 

tunnel 

(a-re-feet)

0

0 

0

11,000

0

0 

0 

0 

0 

0 

1,980 

31

2,070

Aug.

194 

147 

145 

136 

147

128 

118 

114 

122 

118

112 

130 

111 

98 

91

90 

95 

112 

112 

93

90 

88 

86 

84 

81

75

72 

69 

66 

66 

62

Sept.

61 

58 

58 

57 

65

63

66 

65 

69 

84

100 

93 

103 

98 

83

78 

75 

70 

68 

65

61 

60 

57 

57 

57

53 

51 

49 

49 

52

Adjusted foidiversion

Ruroff in

acre-feet

2,330 

1,920 

1,590

71,530

1,210 

1,030 

1,240 

1,490 

12,870 

32 , 8 30 

29,660 

3,430 

4,110

98,710

<"?i°??-

37 .9 

32.3 

25.9

98.8

19.7 

18.5 

20.1 

25.1 

209 

552 

482 

137 

69.1

136

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
TRIBUTARIES ABOVE GUNNISON RIVER 55

Williams River near Par-shall, Colo.

records if diversion to Jones Pass tunnel is added to, flow past station.

Location.- Water-stage recorder, lat. 40°00', long. 106°11', in SE£ sec. 36, T. 1 N., R. 

79 W., 2-j 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.

. _ 1947 in reSeptember 1947 

iarller

Average discharge.- 34 years (1904-24, 1933-47), 157 second-feet (including diversion to 

Jones Pass tunnel).

Extremes.- Maximum discharge during year, 1,090 second-feet June 21 (gage height, 3.90 

feet); minimum daily, 35 second-feet Jan. 30 to Feb. 10.

1904-24, 1933-47: 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 when gage was destroyed; 

minimum daily, 10 second-feet Sept. 15-17, 1934.

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

which are fair. Diversions above station for irrigation and to Jones Pass tunnel.

Cooperation.- Records of diversion to Jones Pass tunnel furnished by State engineer.

Discharge, in second-feet, water year October 1946 to September 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

«S

27

28

29

30

31

Oct.

47

47

51

53

60

57

54

53

54

54

46

51

54

53

60

60

63

60

53

51

56

57

58

60

58

56

57

56

58

60

54

Nov.

46

53

48

57

54

57

53

54

53

48

46

47

50

52

55

*56

56

56

56

55

55

55

56

58

56

54

54

56

52

52

Dec.

52

54

5450*

49

48

46

45

44

42

43

45

47

47

47

45

45

45

44

47

48

50

*50

47

47

47

46

47

40

40

38

Month

October. ...............

November. ..............

December. ..............

Calendar year 1946 . .

January. ...............

February. ..............

March. .................

April ..................

May. Mav ...................

June ...................

July. ..................

August .................

September. .............

Water year 1946-47 . .

Jan.

*

40

40

38

38

38

38

38

38

40

38

38

38

38

38

38

38

38

38

38

38

38

38

38

37

37

37

37

37

37

35

35

Feb.

35

35

35

35

35

35

55

35

55

35

36

58

58

58

38

*37

57

57

58

38

38

58

58

58

38

38

58

58

Mar..

38

38

39

39

40

40

40

42

42

40

42

42

42

40

40

40

40

40

40

40

40

40

40

38

38

40

43

47

40

43

39

Apr.

41

4

4

4

4

6

4

41

40

-

2

4

9

9

0

40

38

4

;

4

1

9

4

56

54 * i

c

c

1

7

3

54

72

c

1C

E

2

6

6

77

78

c

£

e

c

4

2

2

6

May

120

215

294

362

432

437

419

514

575

560

570

455

386

382

350

346

314

330

322

350

362

398

414

362

346

378

398

473

394

346

350

Observed

Secondfoot-days

1,711

1,600

1,439

41,129

1,172

1,029

1,252

1,766

11 954

20 1.907

14,572

4,350

2,819

64,571

Maximum

63

58

54

894

40

38

47

106

575

1,030

828

221

158

1,030

Minimum Mean

46 55.2

46 53.3

38 46.4

113

35 37.8

35 36.8

38 40 . 4

38 58 . 9

120 386

346 697

209 470

84 140

66 94.0

35 177

acre-feet

3,390

3,170

2,850

81,560

2 320

2*040

2 ,480

3,500

23,710

41,470

28 , 900

8,630

5,590

128,000

June

346

378

460

514

468

446

532

762

888

772

715

675

685

685

690

685

745

800

888

940

1,030

910

756

645

595

670

750

794

833

850

-

July

811

806

828

822

811

772

730

695

680

645

580

527

470

430

410

425

394

366

326

302

287

284

298

275

251

242

236

224

215

221

209

Diversions 

to

tunnel 

(acre -feet)

0

0

0

11,000

0

0

0

0

0

0

1 980

91

2.O7O

Aug..

221

182

176

155

162

155

152

148

148

162

142

170

162

150

142

135

138

158

162

135

130

128

125

125

125

114

100

90

 88

86

84

Sept.

84

80

78

80

80

86

88

86

90

104

142

135

158

145

125

116

112

104

98

94

88

88

78

72

72

70

67

66

66

67

-

Adjusted for 

diversion

Runoff in

3,390

3,170

2,850

92,560

2 320

2 040

2*480

3)500

23,710

41,470

10*610

5,680

130,100

Mean secondfeet)

55.3

53.3

46.4

128

37 8

36 . 8

40.4

58 9

386

697

470

173

95.5

180

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 29 to Mar. 26. Ho gage-heigl-t record Nov. 

11-28 (stage-discharge relation affected by ice for part of period), July 13-16; discharge computed 

on basis of 1 discharge measurement, weather records, and records for station near leal.

852060 0-49-5
56 TRIBUTARIES ABOVE OUNNISON RIVER

Keyser Creek near Leal, Colo.

Location.- Water-stage recorder, lat. 39°54'50", long. 106 0.01'00", in SE^ sec. 33, T. 1 

S., R. 77 W., 200 feet upstream from Sitnpson Creek and 7 miles northeast of Leal.

Drainage area.- 13.7 square miles.

Records available.- August 1942 to September 1947 (no winter records 1942-43).

Extremes.- Maximum discharge during year, 154 second-feet June 21 (gage height, 2.89 

feet), from rating curve extended above 110 second-feet; minimum not determined, 

occurred during period of no gage-height record.

1942-47: Maximum discharge, that of June 21, 1947; minimum not dete-mined, 

occurred during period of no gage-height record.

Remarks.- Records good except those for periods of no gage-height record, which are 

poor. No diversion or regulation.

Discharge, in seoond-feet, water year October 1946 to September 1947

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.

5.6

6.0

6.4

6.4

7.2

6.4

6.0

6.4

*6.0

6.0

6.6

6.0

6.0

6.6

6.0

6.0

6.0

6.0

6.0

6.4

6.0

5.6

6.0

5.6

5.6

5.8

5.6

5.6

5.6

5.6

5.0

Nov.

' 5.0

"

Dec.

3.5

Jan.

3.0

Feb.

2.8

-

-

-

Month

October ....................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March. .....................................

April. .....................................

Mav. ny ........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

 3.6

Apr.

3.7

(*)

-

Seoondfoot-days

185.8

150.0

108.5

5,730.7

93.0

78.4

111.6

111.0

2, 686

1 884

594

290.8

7,522.3

May

5.2

8.0

14

26

35

36

36

42

45

43

42

36

37

37

38

39

40

40

40

42

49

50

46

43

46

48

52

56

52

. 52

54

Maximum

7.2

_

118

56

142

108

26

15

142

June

56

60

64

70

68

76

90

105

110

105

90

70

56

54

58

66

88

122

120

136

142

126

104

80

77

83

92

100

108

110

-

Minimum

5.C

.

.

5.'

54

27

117.'

_

July

107

108

108

107

104

96

94

86

81

76

70

64

58

54

56

58

50

47

44

42

40

39

40

37

36

34

32

30

30

29

27

Aug.

26

25

25

25

25

23

23

22

26

25

24

25

21

20

19

18

19

19

17

16

16

16

15

16

15

13

13

12

12

12

11

Hern

i c gg

s!o

3.5

15.7

3.0

sie

3.7

39 7

89.'5

60*8

19.2

' 9.69

20.6

Sept.

10

10

10

9.6

9.2

9.2

9.2

9.2

10

14

13

15

15

12

11

10

10

9.6

9.2

8.8

8.4

8.0

8.0

8.0

8.0

7.6

7.2

7.2

7.2

7.2

Runoff in 

acre feet

369

298

215

11,360

184

156

221

220

2,440

5 330

3^740

1,180

577

14,930

* Winter discharge measurement made on this day.

Note.- Mo gage-height record Oct. 10 to May 4 (stage-discharge relation affected by Ice during 

most of period), May 26 to June 17} discharge computed on basis of 1 discharge measurement at station, 

5 discharge measurements near mouth, weather records, and records for St. Louis CreeV: near Eraser.
TRIBUTARIES ABOVE t>UNNISON RIVER 5T

Troublesome Creek near Troublesome, Colo.

Location.- Water-stage recorder, lat. 40°04', long. 106°19', in sec. 12, T. IN., R. 80 

W., three-quarters of a mile upstream from mouth and 1 mile northwest of old Troublesome post office. Datum of gage is 7,351.16 above 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 1947. July 1937 to September 1941 in files of Bureau of Reclamation.

Average discharge.- 10 years (1904-5, 1921-24, 1941-47), 54.3 second-feet.

Extremes.- 1945-46: Maximum discharge during year, 290 second-feet Apr. 30 (gage height, 

2.63 feet); minimum daily, 1.4 second-feet July 11.

1946-47: Maximum discharge during year, 530 second-feet May 8 (gage height, 3.37 

feet), from rating curve extended above 370 second-feet; minimum daily, 14 secondfeet Oct. 1-3.

1922-24, 1941-47: Maximum discharge 1,230 second-feet July 23, 1945 (gage height, 

4.80 feet), from rating curve extended above 370 second-feet; minimum daily, that of 

July 11, 1946.

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, Oct. 1, 1945, to Sept. 30, 1947, except periods of ice effect

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

(Shifting-control method uaed Oct. 1 to Nov. 7, 1945, May 3-Z7, July 8-30, 1947)

Oct. 1, 1945, to Mar. 13, 1947 Mar. 14 to Sept. 30, 1947

0.9

1.0

1.1

1.2

0.2 

2.7 

9.0

1.3

1.5

1.6

1.8

2.1 

2.3 

2,6

152

198

280

1.1

1.2

1.3

1.4 

1.7 

2.1

92

165

2.4 

2.7 

3.2

230

315

510

Discharge, in aecond-feet, 1945-47

1945-46

Day

1

2

3

4

5

6

7

8

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

19

20

20

20

20

21

21

21

21

24

35

30

27

25

25

24 *22

22

27

25

25

25

5

6

6

5

3

3

6

Nov.,

30

30

29

27

26

27

27

(*)

23

*

Dec.

22

Jan.

(*)

22~

Feb.

25

(*)

-

_

-

Mar.

> 30

(*)

Apr.

70

68

60

46

54

60

66

64

60

52

48

54

66

80

110

116

122

140

170

180

160

170

179

193

224

246

246

241

260

260

-

May

244

219

172

146

161

186

193

193

193

198

174

150

130

107

101

103

S3

82

77

75

70

69

69

67

57

53

46

46

61

66

53

June

37

38

30

20

29

38

50

54

54

56

56

50

42

38

25

26

77

140

75

57

54

45

33

16

8.4

9.0

5.8

4.6

3.3

o . T->

-

July

3.3

2.7

2.7

2.2

2.4

2.4

2.4

2.7

2.2

1.7

1.4

1.7

1.7

1.7

2.4

2.2

2.2

3.3

5.8

5.2

3.3

2.2

4.0

9.0

11

19

18

15

18

19"'.'

Aug.

 >o

19

17

16

15

15

14

15

16

15

14

19

22

29

40

27

23

20

19

18

18

18

20

20

20

19

18

18

17

16

15

Sept.

15

15

15

14

13

13

13

13

12

13

14

14

15

14

15

15

15

13

15

13

14

13

13

14

14

14

14

14

14

14

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 8-13. No gage-height record Nov. 14 to Apr. 

22 (stage-discharge relation probably affected by ice during most of period); discharge conputed on 

basis of 4 discharge measurements and weather records.
TRIBUTARIES ABOVE GUMISON TUVSF

Discharge, in second-feet, of Troublesome Creek near Troublesome, Colo., 1945-47--Continued

1946-47

Day

1

2

3

4

5

6

7

8

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

14

14

15

15

15

17

17

16

15

16

17

18

17

17

*1G

20

22

22

20

17

17

20

22

21

21

20

20

22

23

22

Nov.

21

19

26

20

20

18

25

22

23

36

32

29

35

45

42

*37

32

35

40

36

34

32

35

38

36

32

35

38

36

31

-

Dec.

28

28

29

31

33

33

34

33

33

28

29

31

33

34

34

33

28

24

26

30

28

26

*27

30

25

26

27

25

21

20

20

Jan.

21

23

22

21

21

21

22

23

23

23

22

22

21

20

19

19

*20

20

20

22

20

20

20

21

21

20

19

18

18

18

18

Feb.

19

19

20

20

20

19

18

18

18

19

20

20

19

18

19

19

*19

20

21

20

19

19

20

20

20

20

20

19

_

-

Mar.

18

19

20

19

19

18

18

18

19

20

20

20

20

*20

21

19

24

35

51

57

66

92

76

46

42

36

40

55

82

102

76

Apr.

64

78

86

66

41

34

35

39

45

37

33

30

30

50

84

78

72

89

67

74

122

149

151

139

94

82

111

94

90

102

May

145

208

291

318

374

402

430

478

470

462

4S2

410

312

276

267

232

215

230

242

240

210

197

208

163

123

123

134

1S9

157

107

92

June

89

87

92

102

94

79

76

82

102

107

171

187

125

111

100

116

129

134

127

122

222

201

155

140

123

113

99

86

81

79

July

63

49

43

43

63

50

60

50

50

43

33

23

23

23

23

33

3?

35

29

30

30

29

40

41

36

33

31

35

34

36

35

Aug.

34

31

31

31

42

40

34

31

31

33

33

42

41

38

33

33

33

35

35

32

31

31

31

30

30

28

28

27

27

26

26

Sept.

25

23

23

23

23

24

24

23

24

30

43

33

29

26

25

24

24

23

21

20

20

19

19

19

19

20

19

2O

20

21

Winter discharge measurement made on this day.

nte^; No gage-height record :! >-/. 12 to Mar. 13 (stage-discharge relation affected by ice during 

t u" period;; discharge computed on basis of 4 discharge measurements and weather records.

Monthly discharge, in second-feet, 1945-47

Month

December. ...................................

Calendar year 1345 .......................

May

September. ..................................

Water year 1945-46 .......................

December. ...................................

Calendar year 1946 .......................

May.. . ...................... .............

September ..................................

Water year 1946-47 .....................

Secondfoot days

733

725

F82

17,971

190.8

417

14,345.2

562

940

887

14,534.2

54°

706

21,534

Maximum

35

30

-

354

244

140

40

15

260

23

45

34

260

151

43

478

Minimum

19

-

10

46

46

3.3

1.4

14

12

1.4

14

18

20

1.4

30

26

19

14

Mean

23.6

24.2

22

49.2

22

25

30

129

118

39.1

6.15

19.1

13.9

39.3

18.1

31.3

28.6

40-. 0

20.6

33.3

74.5

S63

118

32.5

£3.5

S3. 2

Runoff in 

acre- feet

1,450

1,440

1,350

35,620

1,350

1,390

1,840

7,670

7,250

2,330

378

1,170

827

28,440

1,110

1,860

1,760

28,940

1,270

1,080

2,360

4,440

16,160

2,400

2 , 00 J

1 , 400

42,840
TRIBUTARIES ABOVE GUNNISON RIVER 59

Blue River at Dillon, Colo.

Location - Water-stage recorder, lat. 39°36'50", long. 106°03'05". in sec. 18, T. b S., 

K. 77 W., at edge of Dillon, a short distance upstream from Snake River end 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 1947.

Average discharge.- 37 years, 113 second-feet.

Extremes.- Maximum discharge during year, 968 second-feet June 21 (gage height, 3.5*1

reet), from rating curve extended above 700 second-feet; minimum-daily, 18 second-feet 

Jan. 16, 17.

1910-47: 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. 

Practically all water diverted above station is returned to river above.

Discharge, in second-feet, water year October 194S to September 1947

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

Ifi

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

38

38

38

39

40

40

40

39

39

41

40

39

39

40

40

*41

42

42

40

38

38

38

38

38

37

37

36

36

36

36

35

Nov.

36

34

35

36

38

35

41

40

36

35

35

39

41

39

37

39

41

43

45

*43

40

42

39

36

35

36

38

40

36

34

-

Dec.

33

35

34

36

37

35

32

31

30

31

32

32

32

32

31

29

27

26

26

27

27

28

28

28

27

27

25

23

20

19

*19

Jan.

19

19

19

18

19

20

21

22

23

23

23

23

22

20

19

18

18

19

19

20

20

20

*19

19

19

20

20

19

19

19

20

Feb.

20

20

20

21

21

20

20

20

20

21

21

22

22

21

20

20

19

19

19

20

20

*20

20

21

21

21

21

21

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

March. .....................................

May. .......................................

July. ......................................

September .................... ............

Water year 1946-47 . . .... ............

Mar.

21

22

22

22

22

22

22

23

23

23

23

23

23

23

23

24

24

24

25

*25

25

26

26

26

26

26

26

26

26

26

26

Apr.'

26

26

26

25

24

24

25

25

26

25

25

24

24

28

27

25

26

28

*28

31

32

38

44

46

45

43

45

45

45

50

-

Secondfoot-days

1,198

1,144

899

36,572

618

571

744

951

9,867

17,685

13,447

4,843

2,677

54,644

May

67

106

168

247

302

320

316

370

445

476

500

395

330

312

312

295

277

283

289

302

309

326

334

320

312

342

366

395

375

342

334

Maximum

42

45

37

558

23

22

26

50

500

884

702

217

115

884

June

323

342

390

455

455

435

482

646

793

751

653

578

506

512

500

530

618

681

639

737

884

786

660

584

530

554

632

653

681

695

-

Minimum

35

34

19

_

18

19

21

24

67

323

220

103

71

18

July

688

695

702

660

681

639

578

590

578

560

518

482

430

400

390

430

482

405

346

323

298

298

295

298

274

256

241

232

229

229

220

Aug.

217

205

190

185

190

198

180

180

180

168

165

165

168

170

158

148

145

148

162

160

150

140

132

130

135

130

119

112

106

104

103

Hear

38.6

38.1

2f.O

100

ir.9

20.4

2*.0

31.7

318

590

434

156

8?. 2

150

Sept.

99

97

95

94

92

90

92

88

88

95

108

115

110

106

97

92

87

86

86

86

84

82

81

80

80

78

74

72

72

71

-

Runoff in 

acre-feet

2,380

2,270

1,780

72,540

1,230

1,130

1,480

1,890

19,570

35,080

26,670

9,610

5,310

108,400

Winter discharge measurement made on this day. 

Note.- No gage-height record Nov. 4 to Apr. 18 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 5 discharge measurements and weather records.
60 TRIBUTARIES ABOVE C-UNNISON RIVER

Blue Rivr abuve Grepji Mountain Reservoir, Colo.

Location - Water-stage recorder, lat. 39°49'55", long. 106° 13'25", in sec. 34, T. 23., 

R. 79 W., just upstream from high-water line of Green Mountain Reservoir, 1 mile 

'downstream from Brush Creek, and 18 miles southeast of Kremmling. Datum of gage is 

7,946.56 feet above mean sea level, unadjusted.

Drainage area.- 4T9 square miles.

Records available.- May 1944 to September 1947.

Extremes.- Maximum discharge during year, 3,750 second-feet June 21 (gage height, 4.36 

reet), from rating curve extended above 2,900 second-feet; minimum daily, 80 secondfeet Jan. 29 to Feb. 1, Feb. 7-10, Feb. 16 to Mar. 2.

1944-47: Maximum discharge, that of June 21, 1947; minimum daily, 69 second-feet 

Dec. 28, 1944, Jan". 4, 1945.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Many small diversions above station for irrigation.

Cooperation.- Three discharge measurements and gage-height record furnished by Bureau 

or Heciamation.

Discharge, in second-feet, water year October 1946 to September 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.

164

161

175

182

193

186

189

178

193

205

171

*182

201

186

201

197

205

193

178 175*

186

182

182

178

178

168

175

171

178

178

164

Nov.

147

161

151

178

158

158

170

150

140

140

145

155

150

140

140

140

140

150

150

150

140

150

140

140

130

130

140

140

140

125

-

Dec.

125

130

130

130

130

125

120

110

110

110

115

120

120

120

120

110

100

95

95

100

100

105

110

115

115

115

110

105

100

95

85

Jan.

85

85

85

90

90

95

100

100

100

100

100

95

90

85

85

80

80

80

85

85

85

*85

90

90

90

90

90

85

80

80

80

Feb.

80

85

85

85

85

85

80

80

80

80

85

85

85

85

85

80

80

80

80

80

*80

80

80

80

80

80

80

80

-

_

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March ......................................

April ......................................

May. ................ .................. ...

June .......................................

July. ............... ......................

August .............. ......................

September. .......... ......................

Water year 1946-47 ... ..................

liar.

 80

80

85

85

85

90

95

95

100

100

100

100

100

100

105

*105

105

110

110

110

110

110

110

110

110

115

115

120

120

125

125

Apr.

125

125

130

125

120

120

120

120

125

125

125

130

130

125

125

125

125

130

150

170

200

270

*320

274

244

248

282

244

248

278

-

Seoondfoot-days

5,655

4,388

3,470

148,186

2,740

2,290

3,210

5,178

38,305

65,770

52,100

20,696

10,229

214,031

May

362

612

851

1,110.

1,280

1,310

1,380

1,560

1,800

1,820

1,690

1,250

1,080

1,100

1,100

1,070

1,050

1,140

1,130

1,220

1,260

1,430

1,380

1,220

1,200

1,370

1,440

1,550

1,280

1,130

1,130

Maximum

205

178

130

2,340

100

85

125

320

1,820

3,420

2,580

960

534

3,420

June

1,130

1,250

1,510

1,690

1,520

1,460

1,840

2,700

2,860

2,290

2,170

2,000

1,780

1,770

1,820

2,070

2,400

2,600

2,640

3,100

3,420

2,840

2,350

2,080

2,040

2,260

2,460

2,540

2,580

2,600

-

Minimum

161

125

85

85

80

80

80

120

362

1,130

900

383

256

80

July

2,540

2,540

2,580

2,490

2,500

2,380

2,320

2,280

2,280

2,150

1,960

1,800

1,670

1,590

1,610

1,80Q

1,690

1,540

1,380

1,260

1,210

1,180

1,240

1,220

1,120

1,060

980

940

960

930

900

Aug.

920

860

832

822

960

841

784

765

756

738

720

880

774

711

657

630

621

657

729

648

594

568

560

551

534

492

462

432

411

404

383

Mean

182

146

11Z

406

88.4

81.8

104

173

1,?36

2,192

1,881

868

341

586

Sept.

362

355

355

344

333

328

328

516

328

397

534

455

470

440

383

350

338

344

338

328

316

300

291

282

287

282

269

260

256

260

-

Runoff in 

acre- feet

11,220

8,700

6,880

293,900

5,430

4,540

6,370

10,270

75,980

130,500

103,300

41,050

20,290

424,500

Winter discharge measurement made on this day. 

Note.- No gage-height record Nov. 7 to Apr. 23 (stage-discharge relation affected by ice during 

most of period); discharge computed on baaia of 4 discharge measurements and weather records.
TRIBUTARIES ABOVE GUNNISON RIVER 61 

Green Mountain Reservoir near Kremmling, Colo .

Location.- Mercury gage, lat . 39°52'45", long. 106°19'15", in NE^'sec. 15, T. 2 S., R. 80 

W., at Green Mountain Dam on Blue River, 0.6 mile upstream from Elllott C-eek and 13 

miles Toutheast of Kremmling. Datum of gage is 7,800 feet above mean sea level (Bueclatio ben Gage heights have been reduced to elevations above

mile . 

reau of Reclamation bench mark). 

mean sea level.

Records available.- November 1942 to September 1947.

Extremes . - , Maximum contents observed daring year, 148,620 acre-feet July 3 (elevation. 

Y,yt>u.81 feet); minimum observed, 52,630 acre-feet May 2 (elevation, 7,890.01 feet).

1943-47: Maximum contents observed, that of July 3, 1947; minimum observed, 40,690 

acre-feet Apr. 25, 1943 (elevation, 7,877.85 feet); no storage prior to N^v. 16, 1942.

Remarks . - Dam completed November 1942. Capacity of reservoir, 146,900 acre-feet between 

elevations 7,800 feet (sill of outlet gage) and 7,350 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 usable contents.

Cooperation.- Records furnished by Bureau of Reclamation.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31....................

Water year 1946-47. ......

Elevation 

(feet)

947 75

945 19

,927.90

95O 38

*

-

Contents 

(acre-feet)

104,490

-

Change In contents 

during month 

(acre-feet)

-32,400

8 090

-1,480
62 TRIBUTARIES ABOVE GUNNISON RIVER

Blue River below Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 39°56i, long. 106°21', in NE^ sec. 33, T. 1 S., R. 

bU 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 1947.

Average discharge._- 10 years, 484 second-feet.

Extremes.- Maximum discharge during year, 3,490 second-feet June 30 (gage height, 5.57 

reet); minimum daily, 12 second-feet regulated Oct. 6.

1937-47: 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 below 200 second-feet and those for period uf no 

gage-height record, which are fair. Flow regulated by Green Mountain Reservoir (see 

preceding page). Many small diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

234

192

172

202

69

12

172

198

172

272

197

297

177

258

232

281

323

300

239

129

311

407

409

384

309

131

13

196

191

356

156

Nov.

167

194

50

148

97

193

135

143

62

93

179

60

89

73

48

31

28

57

74

191

450

484

472

504

490

476

535

487

541

558

-

Dec.

372

558

588

558

553

537

484

510

566

547

558

599

585

606

537

433

546

610

549

578

634

644

655

632

645

706

614

606

669

650

650

Jan.

661

560

499

426

483

442

469

415

402

418

390

394

350

340

324

337

324

352

425

368

335

287

311

313

255

271

317

285

284

284

324

Feb.

288

290

286

323

301

291

315

288

315

284

302

300

304

310

286

312

398

253

322

308

342

350

233

106

176

220

154

174

_

-

Month

October. . ............................... .

November. ..................................

Decembe r ...................................

Calendar year 1946 ......................

January .................................. .

February .................... ..............

March. ..................... ..............

April ......................................

May.................................... ..

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

76

36

90

242

174

92

172

50

32

208

290

40

36

46

32

29

135

495

495

476

478

500

518

524

566

555

567

559

556

558

564

Apr.

566

562

552

561

433

547

539

493

477

492

657

112

81

387

564

208

338

347

334

368

337

338

341

361

353

318

232

730

606

654

Secondfoot-days

6,991

7,109

17,979

154,994

11,645

7,831

9,191

12 999

21*553

51,770

57,989

21, 718

12,070

238,845

May

687

791

1,030 819'

1,150

1,140

1,160

1,140

1,170

1,080

896

1,100

1,050

656

641

426

74

42

584

545

432

857

687

177

142

665

673

884

585

130

140

Maximum

409

558

706

1,520

661

398

567

730

1,170

3,300

3,090

1,020

624

3,300

June

1,010

1,300

1,430

1,470

1,470

1,490

1,440

1,070

1,510

1,960

1,980

2,020

2,020

1,980

1,890

1,600

1,340

1,340

1,330

1,330

1,420

1,600

2,080

2,240

1,730

1,390

1,480

2,630

2,920

3,300

Minimum

12

28

372

12

255

106

29

81

42

1,010

895

21

21

12

July

3,060

2,700

3,090

2,940

2,630

2,600

2,660

2,220

2,230

2,300

2,340

2,300

1,970

2,160

1,720

1,350

1,710

2,020

1,500

1,020

1,540

1,470

1,270

1,300

1,300

1,300

998

1,160

1,320

916

895

Aug.

923

933

388

902

982

1,000

1,020

984

910

200

1,000

813

833

771

990

695

200

885

884

622

677

753

424

28

567

762

813

787

786

165

21

Mean

226

237

580

425

376

280

296

433

695

1, 726

1,871

701

402

654

Sept.

21

307

410

564

316

384

206

346

303

350

426

555

624

440

485

520

477

400

531

242

474

416

423

489

310

311

280

398

509

553

Runoff in 

acre feet

13,870

14,100

35,660

307 400

23,100

15,530

18,230

25,780

42,750

102,700

115,000

43,080

23,940

473,700

Mote.- No gage-height record Mar. 18 to Apr. 15; discharge computed on basis of kilowatt hours 

generated by Green Mountain power plant.
TRIBUTARIES ABOVE OUNNISON RIVER 63

Snake River at Dillon, Colo.

Location - Water-stage recorder, lat. 39°36'50", long. 106 0 03'05", in sec. 18, T. 5 S., 

K. 'f'f W., at private bridge at Dillon, 100 yards upstream from mouth. Datum of cage 

is 8,820.54 feet above mean sea level, unadjusted.

Drainage area.- 92 square miles. »

Kecoras available.- October 1910 to September 1919, December 1929 to September 1947

Average QiscnargeT- 27 years, 66.0 second-feet.

Extremes.- Maximum discharge during year, 828 second-feet June 20 (gage height, 3.99 

ree t), from rating curve extended above 500 second-feet; minimum daily, 6.1 secoadI 6 61 JcLn« 23.

1910-19, 1929-47: 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 

wHlcH are fair. One diversion 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. 16 

Nov. 21 

Dec. 31 

Jan. 23 

Feb. 22 

Mar. 20

Second-feet

27.6 

19.0 

14.3 

10.8 

10.4 

9.2

Date

Apr. 20 

May 26 

June 19 

July 18 

Aug. 13 

Sept. 22

Second-feet

14.7 

38.4 

0 

42.6 

46.5 

45.0

Discharge, in second-feet, water year October 19-46 to September 19'' 7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

23

29

30

31

Oct.

9.9

9.9

9.9

9.9

9.9

9.9

9.5

9.5

9.9

9.9

11

9.5

9.9

9.9

10

*10

10

11

11

11

11

11

11

12

11

12

11

11

11

11

11

Nov.

10

11

12

11

12

11

11

11

11

11

11

12

12

11

11

12

12

12

13

*13

12

12

12

12

12

12

12

11

11

11

-

Dec.

11

11

11

11

11

10

10

11

10

10

10

11

11

11

10

9.1

9.2

9.4

9.4

9.6

9.8

9.8

9.3

9.8

9.6

9.2

8.8

8.6

8.4

8.2

*8.1

Jan.

7.8

7.8

7.8

7.8

7.8

7.8

7.6

7.6

7.2

7.0

6.8

6.6

6.6

6.6

6.6

6.4

6.2

6.2

6.2

6.2

6.2

6.2

*6.1

6.2

6.2

6.4

6.4

6.2

6.4

6.6

6.6

Feb.

6.6

6.6

6.4

6.4

6.4

6.6

6.6

6.8

7.0

7.0

7.2

7.4

7.6

7.6

7.6

7.6

7.6

7.6

7.6

7.6

7,5

*7.5

7.5

7.5

7.2

7.2

7.5

7.6

_

_

-

Month

Octobe r ....................................

November. ........................ .........

December. ..................................

Calendar year 1946 ......................

January .................................. .

February. ..................................

March. .....................................

April ................................ .....

Hay. .......................................

June .......................................

July.. ............ ........................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

7.6

7.8

8.0

8.2

8.2

8.2

8.2

8.2

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.2

8.2

8.2

8.2

*8..3

8.3

9.1

11

9.5

9.9

9.5

9.5

9.5

9.5

9.5

9.9

Apr.

9.9

9.5

9.5

9.1

9.1

9.1

9.5

9.9

10

11

11

11

11

12

11

11

13

13

9.9

13 ,

19

26

30

21

18

22

21

18

17

26

Secondf cot-days

324.5

347

306.1

15,453.9

210.1

201.3

266 7

430! 5

3 721

ll',323

8, 429

2 } 418

668

28,645.2

May

40

68

107

127

133

115

123

148

184

194

198

133

117

111

106

98

104

111

107

115

117

135

125

102

98

127

138

135

107

96

102

Maximum

12

13

11

440

7*8

7.6

11

30

198

680

542

172

45

680

June

106

140

172

181

16Q

166

266

435

542

410

340

295

250

246

266

345

425

4SO

490

624

680

520

405

365

385

465

520

558

558

548

Minimum

9.

10

8.

6 

6.4

7.

9.

40

106

OA O*

39

11

6.

July

542

536

526

485

490

455

425

420

405

385

345

320

290

275

268

285

242

190

169

158

148

140

129

121

119

109

96

9/

90

90

84

Aug.

100

82

90

78

94

75

74

74

69

68

74

172

111

106

93

88

87

88

88

74

70

69

70

75

65

57

53

50

42

43

39

Me<M>

5 10.5

11.6

L 9.87

40 1.

6 .78

L 7.19

5 8.60

L 14.4

120

377

272

78.0

22.3

L 78.5

Sept.

35

32

28

26

25

25

24

23

22

24

45

32

38

34

26

24

21

21

17

16

16

15

14

13

15

12

11

11

11

12

Runoff in 

acre-feet

644

688

607

30,650

417

399

529

854

7,380

16)720

4,800 

1,320

56,820

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 1, 3, 7, 10-14, 17-23, 25, 26, 29, 3O, Dec. 

1-4, 9-22, Jan. 1-4. Ho gage-height record Dec. 23-31, Jan. 5 to Mar. 19 (stage-discharge relation 

affected by ice during meat of period); discharge computed on basis of 3 discharge measurements, 

weather records, and records for stations on nearby streams.
64 TRIBUTARIES ABOVE GUNNISON RIVER

Tenmlle Creek at Frisco, Colo.

location.- Water-stage recorder, lat. 39°34'30", long. 106°06'35", In sec. 34, T. 53., 

N. VB W., 100 feet upstream from North Fork and half a mile west of Frieco. Datum 

of gage Is 9,099.32 feet above mean sea level, unadjusted.

Drainage area.- 79 square miles.

Reconds available.- July 1942 to September 1947.

Extremes.- Maximum discharge during year, 1,080 second-feet June 19 (gage height, 3.13 

reet Y7 from rating curve extended above 720 second-feet; minimum daily, 10 secondfeet Jan. 3, 4, 15, 16.

1942-47: Maximum discharge, that of June 19, 1947; minimum daily, 8.1 second-feet 

Jan. 4, 1945.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Flow partly regulated by Robinson Reservoir (capacity, 2,520 acre-feet). A few small 

diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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

2fl

29

30

31

Oct.

19

20

24

23

23

22

24

17

21

26

19

27

25

25

»28

22

24

22

24

26

22

20

20

20

20

19

22

22

20

18

16

Nov.

14

17

19

19

20

19

20

18

18

18

18

19

21

20

19

20

20

21

22

22

»21

22

21

21

20

21

22

22

20

20

-

Dec.

20

21

21

21

20

20

18

18

18

18

18

18

17

17

16

15

14

14

13

13

14

14

14

14

14

13

12

12

11

»11

11

Jan.

11

11

10

10

U

11

11

11

12

12

12

12

11

11

10

10

11

11

12

»12

12

11

11

11

11

11

11

11

11

11

12

Feb.

12

12

12

12

12

12

12

12

13

13

13

14

14

14

14

14

14

14

14

13

»13

13

14

14

14

* 14

14

14

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

14

15

15

16

16

17

17

17

17

17

17

17

17

18

19

20

21

21

»20

20

21

22

18

16

12

15

15

16

17

15

15

Apr.

15

15

14

15

14

14

15

16

14

15

14

13

15

14

14

15

15

14

*24

26

30

33

36

34

34

38

42

41

39

43

-

Secondfoot-days

490

27,290

8 554

1,630

46,246

May

53

105

183

294

391

391

437

508

552

552

472

346

332

352

346

346

378

390

375

410

450

490

430

400

417

486

515

515

391

372

391

Maximum

21

450

552

100

i 863

June

410

486

552

560

493

515

695

855

807

631

522

444

424

451

493

599

703

703

751

863

775

607

500

465

500

583

591

583

560

530

-

Minimum

11

.

40

10

July

515

486

465

465

458

410

404

398

384

352

320

288

264

250

230

300

250

215

200

186

180

172

195

183

162

152

137

134

149

128

122

Aug.

125

108

108

120

122

102

100

100

92

86

96

110

92

80

75

75

78

96

105

86

75

74

74

75

69

64

58

53

50

52

48

MeP.n

21 9

15.8

74.8

13 2

5IV5

85 4

54.3

127

Sept.

46

47

53

44

43

43

42

41

50

68

100

76

82

80

70

61

60

60

61

57

52

47

46

46

48

43

42

40

40

42

-

Runoff in 

acre-feet

1 350

972

54,140

23 940

3,230

91,730

Winter discharge measurement made on this day. 

Note.- No gage-height record Oct. 9-14, Oct. 30 to Apr. 18 (stage-discharge relation affected by 

ice during most of this period). Hay 18-24, July 14-17, Aug. 26-31, Sept. 8-16, 20, 21; discharge 

computed on basis of 5 discharge measurements, weather records, and records for station at Dlllon.
TRIBUTARIES ABOVE GUNNISON RIVER 65 

Tenmile Creek at Dillon, Colo.

Location.- Water-stage recorder, lat. 39°36'45", long. 106°03'15", in sec. 18, T. 5 S., 

K. vY W., at Dillon, 250 feet downstream from highway bridge 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 1947.

Average discharge.- 27 year (1910-19, 1929-47), 122 second-feet.

Extremes.- Maximum discharge during year, 1,220 second-feet June 8 (gage height, 4.54 

reetj, from rating curve extended above 720 second-feet; minimum daily, 15 second-feet 

Jan. 1, 3, 16, Mar. 24.

1910-19, 1930-47: 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 secondfeet; minimum daily, 2 second-feet Feb. 15-17, 20, 1918.

Remarks.- Records good except those for period of ice effect, which are fair. Plow partly 

regulated by Robinson Reservoir (capacity, 2,520 acre-feet). Diversions above station 

for irrigation and mining.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

7,

4

5

6

7

R

9

10

11

12

13

14

15

16

17

18

19

20

21

2?.

23

?.4

25

26

?7

2R

29

30

31

Oct.

26

27

33

32

34

29

33

29

33

34

28

34

33

33

35

*33

34

31

27

28

31

28

28

30

29

27

31

31

31

29

26

Nov.

23

27

28

28

30

29

31

28

27

27

27

29

31

30

29

30

31

33

34

*35

35

35

33

32

30

31

32

31

30

28

-

Dec.

29

29

30

30

30

27

26

24

24

25

25

25

25

24

23

21

20

20

20

20

20

20

20

20

20

19

18

17

16

*16

16

Jan.

15

16

15

16

16

17

17

17

18

18

17

17

16

16

16

15

16

16

17

17

17

16

*18

16

16

16

16

16

16

16

16

Feb.

18

18

19

19

19

19

19

19

19

19

20

21

22

23

23

23

23

22

22

23

*23

23

23

22

22

22

22

22

-

_

-

Month

December ...................................

Calendar year 1946 ......................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

23

24

24

24

24

25

25

25

25

25

24

24

25

25

26

28

30

28

*28

30

31

29

26

15

16

22

25

26

28

26

24

Apr.

24

24

23

24

23

22

25

26

23

25

23

20

24

22

21

22

22

20

20

28

46

59

68

59

50

53

68

53

53

66

-

Secondfoot-days

699

39,153

2,058

56,551

May

99

157

240

330

427

432

478

568

612

632

544

375

330

355

360

355

375

405

390

449

478

544

478

422

478

562

580

586

444

400

438

Maximum

30

701

31

113

966

June

444

ssa

632

652

568

568

742

966

924

716

638

544

496

520

568

664

794

320

827

952

868

697

593

556

580

671

710

710

704

697

-

Minimum

16

_

1 ft

46

15

July

671

671

645

645

632

580

550

544

544

484

432

395

365

340

335

390

360

301

273

254

240

237

258

244

217

201

190

187

198

176

173

Aug.

176

160

154

152

184

144

136

139

131

123

123

154

126

106

99

96

104

128

144

116

104

99

99

99

90

83

76

72

68

70

64

Mean

22.5

107

68.6

155

Sept.

57

53

62

53

48

50

48

46

61

87

113

92

99

99

85

81

81

83

83

79

70

66

61

61

64

59

55

53

52

57

-

Runoff in 

acre-feet

1,390

77,660

4,080

112,200

* Winter discharge measurement 

Note.- Stage-discharge relation

ide on this day.

iffected by ice Nov. 3-6, Nov. 9 to Mar. 16.
66 TRIBUTARIES ABOVE GUNNISON RIVER

Straight Creek near Dlllon, Colo.

Location.- Water-stage recorder, lat. 39°39'05", long. 106°00'55", in NW£ sec. 4, T. 5 

S., K. 77 W., 400 feet upstream from Laskey Creek and 3j miles northeast of Dillon. 

Datum of gage is 9,392.69 feet above mean sea level, unadjusted.

Drainage area.- 12.8 square miles.

Records available.- September 1943 to September 1947 (no winter records 1943-46).

Extremes.- Maximum discharge during year, 129 second-feet June 20; maximum gage height, 

a.b1 / reet June 29; minimum not determined, occurred during period of no gage-height 

per 3rd.

1943-47: Maximum discharge, 141 second-feet June 10, 1946; maximum gage height, 

that of June 29, 1947; minimum daily discharge determined, 2.6 second-feet Nov. 28, 

1943, but probably less during period of no gage-height record.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Wo diversion above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

30

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.8

5.0

5.5

5.5

6.0

5.5

5.7

b5.2

bS.4

b5.8

b5.0

b5.4

b5.2

*b5.7

Nov.

i 4 - 4

(»)

-

Dec.

I 3.0

Jem.

> 2.5

Feb.

, 2.2

~

-

Month

December. ..................................

Calendar year ......................

March ......................................

April ......................................

May. .......................................

September. .................................

Water year 1946 47 ... ..................

Mar.

.

> 3.0

Apr.

4.5

4.6

4.8

4.9

4.8

4.8

4.8

5.0

4.6

4.2

4.2

4.4

4.6

4.8

5.0

4.8

5.6

4.6

4.2

4.4

*5.7

5.5

4.8

4.0

4.0

5.7

S.5

3.8

4.0

4.5

-

Secondfoot days

93.0

_

262.0

6,396.3

May

6.0

11

16

23

27

26

28

32

34

35

30

21

19

18

18

18

19

20

20

22

23

29

31

28

27

30

33

34

28

25

26

Maximum

.

_

5 7

14

108

June

27

34

44

46

40

42

63

97

93

75

67

60

55

55

61

63

78

83

100

108

108

86

71

62

63

72

83

93

97

97

-

Minimum

-

_

7.1

-

July

96

97

98

100

100

96

93

89

88

82

75

69

66

61

61

63

56

52

47

43

40

41

42

38

33

31

29

27

28

28

28

Aug.

25

28

31

30

29

25

25

24

22

21

27

25

20

18

17

17

18

25

20

16

16

15

14

14

13

11

11

10

9.7

9.7

8.6

Hern

3.0

_

8.73

17.5

Sept.

8.3

8.0

8.3

7.7

8.3

7.7

7.1

7.1

8.0

11

12

14

14

12

9.7

8.9

8.6

8.3

8.0

7.7

7.4

7.4

7.4

8.0

8.0

7.7

7.4

7.4

8.0

8.6

-

Runoff in 

acre feet

325

184

_

520

12,680

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Oct. 15 to Apr. 20 (stage-discharge relation affected by ice during 

lost of pej-lod); discharge computed on basis of 2 discharge measurements and weather records.
TRIBUTARIES ABOVE GUNNISON RIVER 67 

Willow Creek near Dillon, Colo.

Location.- Water-stage recorder, lat. 39°39'00", long. 106°04'45", in NW-j sec. 1, T. 5 

S., K. 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 1947.

Extremes.- Maximum discharge during year, 162 second-feet June 20 (gage height, 8.32

feet); minimum daily recorded, 2.4 second-feet Sept. 29, but may have been less .during 

period of no gage-height record.

1942-47: Maximum discharge that of June 20, 1947; minimum daily, 0.4 second-foot 

July 29-31, Aug. 1, 6, 1942.

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 1946 to September 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.

4.6

4.8

6.0

5.8

6.2

5.5

6.0

5.8

6.2

6.2

5.8

5.2

6.0

*6.2

6.8

6.8

6.8

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.2

6.0

6.0

6.0

6.8

6.5

6.0

Nov.

. 5.8

(")

-

Dec.

, 4.0

Jan.

. 3.0

(»)

Feb.

 3.4

(*)

_

_

-

 Month

October. ...................................

November . ........................ .........

December ...................................

Calendar year 1946 ......................

January. ................................. .

February ............................. .....

March..... .................................

April ................ .....................

May. .....................................

June. ...................................

July.. ............ ..... ..... .........

August ............... .... ... ............

September ... ........ ... .................

Water year 1940-47 .................

Mar.

 3.8

(»)

Apr.

3.8

3.8

3.8

3.8

3.9

4.0

4.1

4.3

4.3

4.2

4.2

4.2

4.3

4.5

4.7

4.9

5.0

5.2

5.6

*6.8

7.5

8.9

9.2

7.8

7.2

8.9

9.2

8.2

7.5

8.9

-

Secondfoot-days

189.7

174.0

124.0

4,558.9

93 . 0

95.2

117.8

172.7

1 245

2^074

1,871

499

279. a

6,9?5.2

May

12

23

31

42

49

43

49

54

55

54

44

33

30

35

36

33

33

36

35

40

41

49

44

40

41

48

49

53

40

35

38

Maximum

6.8

-

84

9.2

55

124

25

16

124

June

37

46

49

50

39

38

52

83

84

57

52

48

42

41

47

57

74

74

73

118

124

92

69

62

72

92

97

103

103

99

~

Minimum

4.6

-

.6

_

_

3.8

12

37

14

12

2.4

-

July

99

99

112

120

110

97

101

103

95

90

76

69

62

58

60

62

51

48

44

37

35

52

35

31

28

26

23

21

17

16

14

Aug.

13

12

12

14

19

15

16

22

25

25

24

23

20

17

15

15

15

18

18

16

15

15

14

14

13

13

13

12

12

12

12

K'san

6.12

5.8

4.0

12.5

3.0

3.4

3.8

5.76

4O.2

69.1

R0.4

16.1

9.33

19.0

Sept.

12

11

12

31

10

9.9

9.5

9.1

10

15

16

15

14

12

11

9.9

9.5

9.9

9.9

9.5

8.7

8.3

7.5

7.2

7.2

4.4

2.7

2.6

2,4

2.6

~

Runoff in 

acre-feet

376

345

246

9,040

184

189

234

343

2,470

4,110

3,710

99n

555

13,750
68 TFTBUTARIE,. ABOVE rjINimjON R LVER 

Rock Creek near Dillon, Colo.

Location.- Water-stage recorder, lat. 39°43'25", long. 106°07'40", in NE£ sec. 9, T. 4 

o., R. 78 W., at bridge on State Highway 9, a quarter of a mile upstream from mouth 

and 9 miles northwest of Dillon. Datum of gage is 8,473.76 feet above mean sea level, 

unadjusted.

Drainage area.- 15.8 square miles.

Records available.- July 1942 to September 1947.

Extremes.- Maximum discharge during year, 236 second-feet June 20 (gage height, 2.42 

feet), from rating curve extended above 160 second-feet; minimum not determined, 

occurred during period of no gage-height record.

1942-47: Maximum discharge, that of June 20, 1947; minimum daily determined, 2.2 

second-feet Apr. 13, 17, 1945, but m^y have been less during periods of no gage-height 

record.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

A Tew small diversions above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

3

4

5

6

7

9

10

11

12

13

14

ib

16

17

18

20

21

22

2b

26

27

28

29

30

31

Oct.

4.8

4.8

5.8

5.8

6.5

6.0

6.5

5.5

6.0

? . 2

7.5

6.0

6.2

6.2

*6.5

6.2

6.5

6.0

R.O

7.2

6.8

6.2

6.2

6.2

5.8

5.3

5 . ^

5.fl

e.2

5.8

5.8

Nov.

(*)

-

Dec. Jan.

(*)

Feb.

(*)

-

-

-

Month

December . . ..... ..... ....................

Calendar year I94f ................ ....

January ........... .............. . .

March. ........... ......... . . .....

April . ........ ..... ...... ... ........

May. . .......... . ......... .............

July. ........ ... ........ . . ....

August ... .... ... ...... .... ... ....

Water year n-4P-4; ... . . . . . .........

Mar.

,

f 3 ' 4

(«)

'

Apr.

.0

.0

.0

.0

.0

.2

.4

.5

.5

.4

.3

.3

.5

.8

.2

.2

.2

.4

6.4

7.0

3.5

*11

10

8.9

7.5

8.6

10

9.6

8.9

10

Secondfoot-days

139.5

7,584.4

95 2

2 455

9, 3R4.fi

May

13

21

31

50

64

75

85

1Q1

110

101

75

47

40

45

47

44

44

50

43

49

56

68

64

57

58

68

70

70

49

44

49

Maximum

.

139

167

June

47

60

71

75

58

58

93

138

105

85

81

70

49

51

68

89

105

118

125

167

138

110

81

50

56

81

89

96

103

101

Minimum

.

_

-

July

98

103

96

101

103

96

113

103

125

101

85

67

58

56

73

120

81

77

77

70

64

63

73

65

61

57

53

51

55

55

55

Aug.

55

50

47

51

63

47

45

42

42

40

40

38

33

32

31

30

29

32

34

30

30

28

25

23

23

21

'19 20

19

18

17

Me=n

4.5

20.8

3 4

25.7

Sept.

17

17

17

17

16

16

16

15

16

23

23

20

19

18

16

13

13

14

15

14

13

12

10

11

11

10

10

10

10

10

Runoff in 

acre-feet

277

15,050

209

off

18,580

* Winter discharge measurement made on this day.

Note.- No gase-height record Nov. 1 to Apr. 21 (stage-discharge relation 

ostof period): discharge computed on basis of 4 discharge measurements an

ffected by Ice during 

weathe records.
TRIBUTARIES ABOVE GUNNISON RIVER 69

Boulder Creek near Dillon, Colo.

Location.- Water-stage recorder, lat. 39 0 44'15", long. 106°08'05", In NW-J sec. 4, T. 4 

S., H. 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 1947.

Extremes.- Maximum discharge during year, 166 second-feet June 20 (gage height, 2.78 feet): 

minimum not determined, probably no flow at times during period of no gage-height 

record.

1942-47: Maximum discharge, 255 second-feet June 21, 1943 (gage height, 2.97 feet), 

from rating curve extended above 130 second-feet; no flow at times.

Remarks.- Records poor. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1943, to September 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.

. 0.4

Nov.

, 1.2

(*)

-

Dec.

. 1.1

Jan.

, 1.0

(*)

Feb.

, 0.9

(*)

-

-

-

Month

October .............................. ... .

November . ........................ .........

December. ..'................................

Calendar year 1946 ......................

January. ................................. .

February. ............................ .....

March. .....................................

April ......................................

May. .......................................

June. ......................... ............

July..... ............................ .....

August ............................... .....

September. .................................

Water year i94fi 47 ................ .....

Mar.

, 1.2

(*)

Apr.

, 2.4

(*)

-

Secondfoct-days

12.4

36.0

34.1

4,247.4

31.0

25 2

40.3

72.0

1,123.0

2 179

1, 786

447.6

189 .8

5,976.4

May

8.0

11

20

28

35

40

47

54

50

45

37

27

29

30

32

29

29

37

35

38

43

54

50

45

44

45

48

55

34

22

22

Maximum

~

~_

129

~

~

~

55

130

94

51

o . 0

130

June

22

29

48

58

43

36

62

116

118

89

72

60

50

55

65

90

98

108

120

130

105

80

55

40

50

60

70

80

86

84

Minimum

_

-

"

~

8 . C

22

30

7.5

3.0

-

July

82

88

84

88

86

80

88

88

94

80

62

50

45

4?

48

83

64

50

38

39

3<!

31

4?

44

42

42

37

31

34

33

30

Aug.

33

29

23

25

51

28

15

13

13

13

13

13

12

11

10

10

9.8

10

11

10

9.8

9.6

9.6

9.2

8.9

8.5

8.2

8.0

7.8

7.7

7.5

Mean

0.4

1.2

1.1

11.6

1.0

.9

1.3

2.4

72 . 6

57.6

14.4

6.33

16.4

Sept.

7.4

7.4

7.1

7.1

7.0

6.9

6.9

6.9

6.8

8.2

8.8

7.8

7.8

7.6

7.0

6.5

6.3

6.4

6.5

6.3

5.9

5.7

b.4,

5.2

5.1

5.0

4.4

4.0

3.4

3.0

Runoff in 

acre-feet

25

71

68

8,430

61

50

80

143

2,230 

4,320

3,540

376

11,850

* Winter discharge measurement made on this day.

Mote.- No gage-height record Oct. 1 to May 26. June 18, 19, June 21 to July 18 (s'-.age-discharge 

relation affected by Ice during part of periods); discharge computed on basis of 6 discharge 

measurements, weather records, and records for stations on nearby streams.
70 TRIBUTARIES ABOVE GUNNISON RIVER

Slate Creek near Dillon, Colo.

. ei -stage recorder, lat. 39°46'-SS" (revised), long. 106°09'4S", InNE^sec. 19

list, Af J V'n oi2°o n f? et, up^ tream from mouth and !3 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 1947.

Extremes.- Maximum discharge during year, 188 second-feet June 20 (gage height, 2.24 feet); 

minimum observed, 3,0 second-feet Jan. 22 (discharge measurement), but may have been 

less during period of no gage-height record.

1942-47: 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, 

which are fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

6.5

6.2

6.2

8.2

8.2

7.6

7.0

7.0

6.5

7.0

6.5'

6.5

7.0

7.0

7.0

*7.0

7.0

7.0

6.5

6.2

5.7

5.9

5.7

5.4

5.4

5.4

5.1

4.8

5.4

5.7

5.1

Nov.

5.9

4.5

6.2

4.8

4.5

4.0

b4.5

3.7

4.0

b3.6

b3.3

b4.2

4.2

4.4

4.6

4.4

4.6

4.8

*4.8

4.8

4.4

4.8

5.0

5.0

4.4

4.4

4.6

4.4

4.2

4.0

-

Dec.

, 3.8

Jan.

> 3.4

(*)

Feb.

 3.7

(*)

_

_

-

Month

October ................... ................

November ...................................

December. ..................................

Calendar year 1946 ......................

January. ...........................

February ...................................

March. .....................................

April ............................... . ....

May. .......................................

June ............................... ...

July. ......................... ............

August .....................................

September ..................................

Water year 194R-47 ... ..................

Mar

, 3.8

(*)

Apr.

4.0

4.0

4.0

4.0

4.0

4.0

4.2

4.4

4.6

4.6

4.4

4.4

4.4

4.6

5.0

4.8

5.0

5.6

6.2

8.0

12

*16

14

9.Z

8.7

11

12

9.8

10

13

-

Secondfoot days

197.7

135.5

117.8

4,288.8

105 . 4

103.6

117.8

209.9

1,659

1,782

1, 936

878

420.1

7,662.8

May

17

28

38

54

62

66'

77

102

100

90

83

63

49

46

44

42

41

46

42

43

44

49

52

46

49

52

54

61

49

38

32

Maximum

8.2

6.2

85

16

102

138

112

63

27

138

June

29

30

36

43

32

23

38

77

84

52

49

47

36

37

42

55

69

73

84

138

138

82

51

39

35

52

66

79

84

82

-

Minimum

4.8

3.6

.

4.0

17

23

38

15

7.3

-

July

77

84

86

93

93

84

97

89

112

84

72

63

54

49

56

75

50

50

46

41

41

39

48

48

43

47

38

39

48

46

44

Aug.

48

45

36

39

63

39

34

30

31

31

31

30

28

25

24

24

23

24

29

24

24

24

24

24

22

20

18

17

16

16

15

Mean

6.38

4.52

3.8

11.8

3.4

3.7

3.8

7.00

53.5

59.4

62.5

28.3

14.0

21.0

Sept.

15

13

13

13

12

12

13

13

13

21

27

22

23

21

18

15

15

15

15

14

13

12

11

11

10

9.8

8.4

7.3

7.3

7.3

-

Runoff in 

acre- feet

392

269

234

8,510

209

205

234

416

3 290

3^530

3,840

1,740

833

15,190

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note^- No gage-height record Nov. 13 to Apr. 21 (stage-discharge relation affi-ct---<3 iy ice during 

most of period); discharge computed on basis of 4 discharge measurements and weather records.
TRIBUTARIES ABOVE GUNNISON RIVER 71

Black Creek below Black Lake, near Dillon, Colo.

Location.- Water-stage recorder, lat. 39°48', long. 'l06°16',- in sec. 8, T. 3 S., h. 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 1947.

Extremes.- Maximum discharge during year, 310 second-feet June 20 (gage height, 4.10 

feet) ; minimum daily, 1.7 second-feet Feb. 23.

1942-47: Maximum discharge, 384 second-feet July 1, 1943 (gage height, 4.72 feet), 

from rating curve extended above 260 second-feet; minimum daily, that of Feb. 23, 1947.

Remarks.- Records good above 20 second-feet and fair below. No diversion above station.

Discharge, in second-feet, water year October 1946 to September 1947

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.

20

19

19

18

17

16

14

13

12

11

11

10

10

9.0

9.0

8.7

9.8

9.8

8.7

8.4

8.1

8.1

8.1

8.7

7.8

7.8

6.9

6.9

7.2

7.8

7.8

Nov.

7.2

7.2

6.9

6.6

6.6

6.0

5.8

5.6

5.6

5.8

5.8

5.4

5.4

5.4

5.8

5.8

5.8

5.6

5.6

5.6

5.8

5.6

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.4

-

Dec.

5.2

5.2

5.2

5.0

4.8

4.8

4.6

4.6

4.6

4.6

4.4

4.2

4.0

4.0

3.8

3.7

3.7

3.6

3.4

3.2

3.2

3.1

3.1

3.1

3.1

3.0

3.0

3.0

3.0

3.0

3.0

Jan.

2.8

2.6

2.5

2.5

2.5

2.7

2.7

2.7

2.7

2.7

2.7

2.6

2.3

2.0

1.9

1.9

1.9

1.9

1.9

1.8

1.8

1.8

1.8

2.0

2.0

2.0

2.0

2.0

2.0

1.8

1.8

Feb.

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

2.3

1.8

1.7

1.8

1.8

1.9

2.1

2.5

-

-

-

Month

October ....................................

November. ........................ .........

December ...................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March .................................;....

April. .....................................

May. .......................................

June ............................... .......

July... ....................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

4.4

2.6

3.0

3.2

3.7

3.8

3.6

3.1

2.8

3.0

2.5

2.5

2.8

2.4

2.5

2.3

2.4

2.6

2.8

2.6

2.6

2.6

3.0

3.0

3.0

3.0

3.0

3.0

3.1

3.1

3.2

Apr.

3.4

3.2

3.2

3.2

3.2

3.4

3.2

3.2

3.2

3.2

3.7

3.8

3.8

3.8

4.0

4.2

4.2

5.0

5.6

5.6

6.9

9.4

13

12

10

8.7

9.0

9.8

9.0

8.7

-

Secondfoot-days

338.6

172.7

120.2

11,690.8

68.3

51.9

91.2

172.6

2,310.7

3,899

4,448

1,589

617.2

13,879.4

May

8.7

14

' 3675

115

106

118

140

160

144

120

71

51

48

52

52

55

68

56

56

60

71

73

60

62

76

83

97

68

53

62

Maximum

20

7.2

5.2

283

2.8

2.5

4.4

13

160

286

192

112

45

286

June

56

61

90

109

86

75

120

191

212

107

92

81

63

72

90

129

156

173

196

286

245

144

93

72

76

126

158

171

182

187

-

Minimum

6.9

5.2

3.0

2.3

1.8

1.7

2.3

3.2 si?

56

95

22

8.4

1.7

July

192

192

191

189

187

185

183

182

180

178

176

162

147

142

146

158

126

131

116

107

99

99

129

124

113

109

102

104

102

102

95

Aug.

104

91

81

78

112

77

69

71

67

64

63

62

50

47

42

37

30

40

49

38

38

38

37

34

31

27

24

22

22

22

22

Hern

10.9

£-.76

3.88

3f.O

2.20

1.85

T.94

f.75

74.5

13C

143

51.3

2C.6

3F.O

Sept.

22

20

19

19

19

19

18

18

18

26

45

40

41

39

29

22

19

19

19

19

19

18

15

15

12

12

11

8.4

8.4

8.4

-

Runoff in 

acre- feet

672

343

238

23,180

135

103

181

342

4,580

7,730

8,820

3,150

1,220

27,510

Note.- Backwater from beaver dam on control Oct. 1-10; discharge computed on basis of gage heights, 

discharge measurement, and veather records. No gage-height record Dec. 29 to Feb. 19 discharge computed on basis of discharge measurement Jan. 21 and veather records.

852060 O - 49 - 6
72 TRIBUTARIES ABOVE GUNNISON RIVER

Black Creek above Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 30°51'15", long. 106°15'10", in NEy fee. 29, T. 2 

S., K. 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 1947.

Extremes.- Maximum discharge during year, 266 second-feet June 21 (gage height, 2.46

reet }; minimum observed, 2.3 second-feet Jan. 20 (discharge measurement), but may have 

been less during period of no gage-height record.

1944-47: Maximum discharge, that of June 21, 1947; minimum daily, 1.4 second-feet 

Dec. 15-20, 1944.

Remarks.- Records fair. Small diversions above station for irrigation.

Cooperation.- Two discharge measurements and gage-height record furnished ty Bureau of 

Keciamation.

 Discharge. in second-feet, water year October 1946 to September 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.

6.7

6.7

6.9

8.2

9.8

9.5

10

9.5

9.5

9.8

8.8

*9.2

8.8

7.8

7.5

7.3

8.2

8.0

7.8

7.3

7.1

6.9

6.7

7.8

7.8

7.3

6.3

6.3

6.7

7.5

7.3

Nov.

7.5

7.1

b6.8

b6. 6

6.1

5.3

' 5.7

Dec.

' 4.0

Jan.

> 2.5

(»)

Feb.

 2.5

(*)

-

-

-

Month

October. ...................................

November. ........................ .........

December ...................................

Calendar year 1946 ......................

January. ..................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July .......................................

August ........................ ............

September. .................................

Water year 1946-47 ......................

Mar.

> 3.0

(»)

/

Apr.

> 5.0

*12

12

12

11

11

9.8

11

10

12

-

Secondfoot-days

245.0

176.2

124.0

9,939.6

77.5

70.0

93.0

205.8

1,958

3,927

4,409

1,584

625.4

13,494.9

May

12

20

35

72

103

100

103

120

130

127

112

70

47

39

38

39

38

57

46

45

43

58

60

48

46

59

64

79

60

41

47

Maximum

10

-

187

_

130

240

214

108

54

240

June

49

48

72

90

80

70

110

170

200

139

122

112

89

100

116

146

170

181

198

240

220

154

109

82

79

121

150

162

170

178

-

Minimum

6.3

-

_

_

_

_

12

48

92

21

9.2

-

July

175

176

182

182

196

184

199

194

214

190

164

154

142

139

140

154

125

120

110

106

103

100

121

122

112

108

100

103

102

100

92

Aug.

106

95

82

75

108

85

70

75

68

65

65

67

51

46

41

35

29

42

48

38

35

35

34

30

29

24

22

21

21

21

21

Meai

7.90

5.87

4.0

27.2

2.5

2.5

3.0

6.86

65.2

131

142

51.1

20.8

37.0

Sept.

20

19

18

19

18

18

19

20

19

37

54

36

36

35

25

19

18

21

24

22

20

17

14

14

12

12

11

9.4

9.2

9.8

-

Runoff in 

acre-feet

486

349

246

19,710

154

139

184

408

3,880

7,790

8,750

3,140

1,240

26,770

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 7 to Apr. 21, (stage-discharge relation affected by Ice during 

part of period) July 17-19; discharge computed on basis of 4 discharge measurements, weather records,

and records for station below Black Lake, near Dlllon.
TRIBUTARIES ABOVE GUNNISON RIVER 73 

Otter Creek above Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 39°51'10", long. 106°16'00", in NW£ s?c. 29, T. 2 

a., H. 79 W. (revised) at State Highway 9, 1,000 feet upstream from high-water line 

of Green Mountain Reservoir and 16 miles southeast of Kremraling.

Drainage area.- 9.4 square miles.

Records available- May 1944 to September 1947.

Extremes.- Maximum discharge during .year, 57 second-feet June 21 (gage height, 1.23 feet): 

minimum observed, 0.6 second-foot Jan. 22 (discharge measurement), but may have been 

less during period of no .gage-height record.

1944-47: Maximum discharge, that of June 21, 1947; minimum daily, 0.1 second-foot 

on many days during December 1944 and January 1945.

Remarks.- Records fair.

Cooperation.- Two discharge measurements and gage-height record furnished by Bureau of

Keciamation.

Discharge, in second-feet, water year October 1946 to September 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.

1.2

1.2

1.4

1.4

1.6

1.6

1.4

1.4

1.4

1.6

*1.4

1.4

1.4

1.4

1.4

1.4

1.6

1.4

1.4

1.4

1.2

1.4

1.4

1.4

1.4

1.2

1.2

1.4

1.6

1.6

1.4

Nov.

, 1.3

-

Dec.

 1.0

Jan.

> 0.6

(*)

Feb.

 0.7

(*)

-

_

-

Month

October ....................................

November ...................................

December ....................................

Calendar year 1946 ......................

January .................................. .

February. ..................... ............

March. .....................................'

April. ......................................

May.. ......................................

June .......................................

July

August ........................ ............

September . .................................

Water year 1946-47 ......................

« winter dlscnarge measurement made on thi£

Mar.

> 1.6

(*)

Apr.

 3.5

*6.2

5.4

4.4

4.4

4.7

4.7

4.7

5.0

6.2

-

Secondfoot days

43.6

39.0

31.0

1,583.6

18.6

19.6

49.6

119.2

500.6

695

326.0

136.5

64.0

2,042.7

day.

May

7.0

8.6

10

12

13

20

20

24

27

24

21

17

16

18

17

17

16

18

19

15

18

19

15

13

12

13

14

20

14

11

12

Maximum

1.6

-

40

_

_

_

27

50

18

7.0

3.8

50

June

11

13ie

20

17

13

15

27

40

26

27

22

19

19

19

21

23

26

27

38

50

37

26

20

17

19

21

21

23

22

-

Minimum

1.2

-

_

_

7.0

11

5.4

1.8

1.7

_

July Aug.

18 7.0

18 7.0

18 6.6

18 6.2

17 6.6

15 6.2

15 5.4

15 5.0

15 5.0

14 5.4

14 5.0

12 5.0

10 5.0

9.6 4.7

9.6 4.4

9.6 4.4

8.6 4.4

7.4 5.4

5.8 4.4

5.4 4.1

5.4 4.1

5.8 4.1

7.0 3.5

7.4 3.2

6.6 2.9

5.8 2.3

6.6 2.0

6.2 1.8

5.8 1.8

7.0 1.8

7.4 1,8

Meal

1.41

1.3

1.0

4.34

.6

.7

1.6

3.97

16.1

23.2

10.5

4.40

2.13

5.60

Sept.

1.7

1.7

1.7

1.7

1.7

1.7

1.8

1.8

1.8

2.9

3.8

3.2

2.9

2.3

2.3

2.0

2.0

2.3

2.6

2.6

2.3

2.0

2.0

2.0

2.0

2.0

1.8

1.8

1.8

1.8

Runoff in 

acre-feet

86

77

61

3,140

37

39

98

236

993

1,380

647

271

127

4,050

Note.- No gage-height record Nov. 1 to Apr. 21 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 3 discharge measurements and weather records.
74 TRIBUTARIES ABOVE GUNNISON RIVER

Cataract Creek above Green Mountain Reservoir, Colu.

Location.- Water-stage recorder, lat. 39°51 I 00", long. 106°17'25", in NE£ sec. 25, T. a 

S., K. 80 W., at Lawson Ranch, 1 mile upstrenm from high-water line of Green Mountain 

Reservoir and 16 miles southeast of Kremmling.

Drainage area.- 15.5 square miles.

Records available^- May 1944 to September 1947.

*

Extremes.- Maximum discharge during year, 308 second-feet June 21 (gage htight, C. 35 

reetj; minimum daily observed, 1.0 second-foot Jan. 20 (discharge measurement), but 

may have been less during period of no gage-height record.

1944-47: Maximum discharge, 333 second feet June 8, 1946 (gage height, a.45 feet); 

minimum daily, 0.2 second-foot several days during 1944.

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.

Cooperation.- Two discharge measurements and gage-height record furnished by Bureau of 

Keciamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

n

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.8

2.5

3.5

2.5

2.0

1.9

2.0

2.0

2.5

5.2

*4.2

4.8

3.8

3.2

5.2

5.9

4.8

4.8

4.5

4.5

4.5

4.2

4.2

4.5

4.5

4.5

4.0

4.2

4.5

5.2

4.8

Nov.

5.2

5.2

b5.0

5.2

4.8

5.2

(*)

Dec.

> 2.8

/

Jan.

> 1.4

(*)

Feb.

1 1<2

(*)

-

_

-

Month

December. .................................

Calendar year 1946 ......................

March. .....................................

May. ............ ..........................

September. ...... .................. .......

Water year 1946-47 ... ..... ............

Mar.

,

' 1.3

(*)

Apr.

*7.6

7.3

7.3

7.0

6.2

6.2

6.2

7.0

-

Seccndfoot-days

86.8

6,943.1

3 924

267.8

9,528.5

May

8.7

13

24

39

60 .

58

58

69

170

167

103

60

47

45

44

56

56

53

56

56

54

80

78

73

67

67

67

76

67

33

36

Maximum

_

180

_

17

247

June

39

58

76

103

88

83

112

186

218

143

101

98

71

83

83

112

155

174

186

247

241

155

112

86

80

117

158

167

190

202

-

Minimum

-

_

4.2

-

July

196

202

128

103

114

98

90

98

96

86

78

71

62

58

58

65

58

56

53

45

39

45

56

54

45

44

39

36

33

33

30

Aug.

27

26

24

24

27

26

24

20

23

24

23

30

20

19

17

14

19

16

18

15

12

12

12

15

12

9.4

8.0

7.6

6.2

7.0

6.6

Mean

2.8

19.0

73 2

8.93

26.1

Sept.

5.9

5.9

6.2

5.2

4.2

4.5

6.2

5.2

4.8

9.4

16

14

17

16

12

14

12

8.0

8.7

14

13

8.7

11

8.0

7.3

6.2

5.6

5.2

7.0

6.6

-

Runoff in 

acre- feet

237

275

172

13,770

531

18,900

Winter discharge measurement made on this day. 

t Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 7 to Apr. 22 (stage-discharge relation affected b;-r ice during 

ost of period); discharge computed on basis of 4 discharge measurements and weather records.
TRIBUTARIES ABOVE GUNNISON RIVER 75 

Elliott Creek feeder canal to Green Mountain Reservoir, Colo.

Location.- Water-stage recorder, lat. 39°52'10", long. 105°20'00", in SE^ sec. 15, T. 2 

S. , H. SOW., 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 1947 (no winter records in 1947).

Extremes.- Maximum discharge during year, 228 second-feet June 21 (gage height, 3.37 

reetj; no flow Sept. 30 and probably no flow during most of winter months.

1944-47: Maximum discharge, that of June 21, 1947; no flow during most of winter 

months.

Remarks.- Records fair. Elliott Creek feeder canal diverts all the flow of Elliott 

Creek to Green Mountain Reservoir except during extreme high water. No diversion 

Nov. 7, 1946, to Apr. 30, 1947, except that caused by overflow from ice jams. 

Drainage area of Elliott Creek above head gate of canal, 15.4 square miles.

Cooperation . - Three discharge measurements and gage-height record furnished by Bureau of 

TTeclamation.

Discharge, in second-feet, water year October 1946 to September 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.

2.3

2.0

1.8

1.8

1.8

1.8

1.8

1.8

1.5

2.3

2.0

2.0

a2.2

a2.0

a2.1

a2.1

aZ.l

al.9

al.8

al.8

al.9

al,9

al,9

al.9

al.9

al.8

al.8

al.8

al.8

1.8

1.8

Nov.

1.3

1.5

bl.3

1.5

1.3

1.5

-

-

-

-

.

-

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

-

Dec. Jan. Feb.

Month

October. ...................................

November 1 6 .......................... ....

December ...................................

Calendar year ......................

January. ................................. .

February ...................................

March ....... ................... ..........

April ......................................

May. .......................................

June ............ ..........................

July. ......................................

August .....................................

September. . . ..........................

Water year ...... ... ...........

Mar. Apr.

Secondfoot-days

59.2

8.4

-

_

_

1,432.8

2,589.8

1,039.2

357.2

142.8

_ 

May

5-7

8.0

9.0

9.7

9.7

9.7

13

a 35

a57

78

92

97

84

77

72

67

63

57

51

48

48

49

49

51

46

51

48

46

42

40

20

Maximum

2.3

1.5

_

_

97

203

96

14

7.3

-

June

4.8

29

69

77

63

60

109

162

150

65

49

37

32

35

42

63

95

108

112

152

203

109

70

58

65

107

130

121

110

102

-

Minimum

1.5

1.3

-

_

5.7

4.8

4.5

8.0

LI

-

July

92

96

91

86

89

71

62

63

57

44

36

27

20

15

10

15

11

9.3

6.6

5.4

4.5

5.4

14

20

14

11

12

12

12

14

14

Aug.

14

14

14

14

14

13

14

13

13

12

12

12

12

12

12

12

12

12

12

11

11

11

10

10

9.7

9.3

9.0

8.6

8.3

8.3

8.0

Mjan

1.91

1.40

_

_

_

46.2

86.3

33.5

11 5

4.76

-

Sept.

7.3

6.6

6.3

6.0

6.0

5.7

5.4

5.1

4.8

6.0

5.1

4.8

4.5

4.2

4.2

4.8

4.8

4.5

4.8

4.8

4.8

4.5

4.5

4.5

4.2

4.2

3.9

3.9

2.6

0

-

Runoff in 

acre-feet

117

17

-

_

_

_

2,840

5,140

2,060

7O3

283

-

a No gage-height record; discharge computed on ba 

b Stage-discharge relation affected by ice.

!is of records for stations
/b TRIBUTARIES ABOVE GUNNISON RIVER

Piney River near State Bridge, Colo.

Location.- Water-stage recorder, lat. 39°48', long. 106°35',. in sec. 16, T. 3 S., H. 8y 

W., at Perry Olsen Ranch, just downstream from Rock Creek and 6 miles southeast uf 

State Bridge. Datum of gage is 7,274.73 feet above mean sea level, unadjusted.

Drainage area.- 82.6 square miles.

Records available.- May 1944 to September 1947.

Extremes.- Maximum discharge during year, 644 second-feet June 8 (gage height, a.36 feet); 

minimum daily, 10 second-feet Oct. 1.

1944-47; Maximum discharge, that of June 8, 1947; maximum gage height, 2. 58 feet 

May 26, 1945. Minimum daily discharge, 2.9 second-feet Sept. 21, 1944.

Remarks.- Records fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 194T

Day

1

?

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.

10

12

16

19

19

18

19

18

19

20

22

24

28

26

28

28

32

29

26

24

29

24

24

26

24

24

23

23

29

28

23

Nov.

24

20

32

20

19

18

22

19

20

b20

b20

20

21

22

23

22

21

18

19

20

*20

20

20

19

17

17

19

19

19

19

"

Dec.

19

19

18

17

18

18

17

17

17

17

18

19

19

19

19

18

18

17

17

18

17

17

18

18

17

17

17

16

15

15

14

Jan.

15

15

15

15

14

15

16

16

16

16

15

15

15

14

13

13

13

*13

13

13

13

14

14

14

14

14

14

13

13

13

13

Feb.

13

13

14

14

14

14

14

14

13

13

14

14

14

14

14

14

#14

14

13

13

13

14

14

14

14

14

14

13

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April. ................................ ....

May........................................

July. ............. ........................

September. ................................

Water year 1946-47 ................. . .

Mar.

13

13

13

14

14

14

14

14

14

14

14

14

14

14

14

14

15

17

18

*19

19

20

21

19

18

18

18

19

21

22

21

Apr.

20

22

24

23

22

22

23

24

24

23

23

30

37

46

48

58

90

82

78

80

94

100

86

66

74

86

88

78

88

104

-

Secondfoot-days

714

540

25,055.2

384

591

34,800

May

144

213

302

421

480

452

502.

608

620

616

592

410

354

344

337

340

351

340

316

320

351

365

337

298

298

309

320

340

292

284

302

Maximum

32

19

548

36

620

June

309

334

351

463

340

334

421

596

600

418

393

323

295

316

330

372

474

470

519

544

572

414

320

278

260

302

330

337

337

326

-

Minimum

10

14

6.8

11

10

July Aug.

309 60

316 54

312 47

284 46

278 56

267 48

242 41

239 40

256 36

210 40

189 34

177 34

165 30

156 29

144 27

150 22

130 22

128 28

118 26

106 23

96 23

100 23

122 28

115 25

96 22

88 20

80 19

74 18

70 18

66 17

62 17

Meai

23.0

17.4

68.6

19.7

95.3

Sept.

16

16

16

16

15

16

18

16

17

28

36

33

35

33

28

28

26

24

20

18

16

16

15

16

14

13

13

11

11

11

Runoff in 

acre-feet

1,420

1,070

49 , 700

1,170

69,010

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by iee»

Kobe.- No gage-height record Nov. 12 to Apr. 16 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 4 discharge measurements and weather records.
TRIBUTARIES ABOVE GUNNISON RIVER 77

Eagle River at Redcliff, Colo.

Location.- Water-stage recorder, lat. 39°30'25", long. 106°22'00", In SW^- sec. 20, T. 6 

S., H. 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 1947.

Average discharge.- 18 years (1910-25, 1944-47), 64.5 second-feet.

Extremes.- Maximum discharge during year, 377 second-feet May 10 (gage height, 3.33 feet); 

minimum daily, 9.0 second-feet Dec. 10, 18, 30, 31, Jan. 16.

1910-35, 1944-47: 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 bOO 

second-feet; minimum daily, 1 second-foot Oct. 15, 1917.

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

which are fair. 4,220 acre-feet diverted in 1947 by Ewing, Wurtz, and Columbine 

ditches to Arkansas River Basin.

Discharge, in second-feet, water year October 1946 to September 1947

Day^

1

?

3

4

5

6

7

R

9

10

11

1?

13

14

15.

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12

12

14

14

16

15

18

17

17

18

19

20

22

23

20

22

23

25

26

24

23

26

27

22

21

22

24

26

25

23

23

Nov.

24

22

23

22

23

23

20

21

22

21

19

18

18

19

18

17

15

16

16

16

18

*20

20

12

14

11

12

11

12

12

-

Dec.

15

13

12

11

12

12

12

12

10

9.0

10

11

11

11

11

10

9.5

9.0

10

11

11

11

11

11

11

11

11

*11

10

9.0

9.0

Jan.

9.5

11

10

10

10

11

11

11

11

11

11

11

11

11

11

9.0

9.5

*10

10

10

10

10

10

10

10

10

10

10

9.5

9.5

10

Feb.

11

11

11

11

11

12

12

13

12

13

12

12

12

13

14

15

*15

1514"

13

13

14

15

14

14

14

13

13

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. ................................. ...

April. .....................................

May........................................

July. ............. ........... ........ ...

September ..................................

Water year 1946-47 ......................

Mar.

12

14

15

15

15

16

16

15

15

16

16

15

15

15

15

16

16

*16

17

16

22

26

23

18

21

15

14

15

18

20

18

Apr.

16

18

22

18

16

16

15

16

19

18

17

16

16

25

29

22

27

30

26

41

68

75

56

46

38

45

49

41

39

48

-

Seoondfoot-days

639

337.5

14,219.5

7 378

611

21,833.5

Hay

63

110

.153

189

209

205

225

249

289

313

309 -241

217

205

193

181

181

193

197

217

217

245

237

217

217

233

241

253

221

209

201

Maximum

27

15

214

181

30

321

June

201

209

217

233

221

217

245

297

309

281

273

249

241

249

237

249

273

285

297

321

297

281

245

221

213

213

209

205

201

189

-

Minimum

12

11

9.0

9.0

17

9.0

July

181

165

165

157

145

129

122

119

113

101

92

80

75

72

72

80

75

66

59

56

57

66

66

54

48

45

44

42

42

42

41

Aug.

39

37

39

39

45

37

35

35

34

33

31

32

28

27

26

26

29

32

28

26

25

24

23

24

22

22

22

22

22

22

22

Mewa

20.6

10.9

39.0

20.4

59.8

Sept.

21

21

22

21

20

21

21

20

21

29

30

24

23

22

22

19

19

20

20

19

18

18

17

17

18

18

18

17

17

18

Runoff in 

ao re-feet

1,270

669

28,200

718

1,210

43,300

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 22, 23, 26, Dec. 3-5, 9-18, 27-31, Jan. 1-11, 

Mar. 18, 19. No gage-height record Oct. 4 to Nov. 21, Dec. 19-26, Jan. 12 to Mar. 17 (stage-discharge relation affected by ice during part of periods); discharge computed on basis of 2 discharge 

measurements and weather records.
TRIBUTARIES ABOVE GUNNISON RIVER

Eagle River below Gypsum, Colo.

Location.- Water-stage recorder, lat. 39°39', long. 106°57' , in NWtr sec. b, T. 5 S., R 

Hb W- at Gypsum, 150 feet downstream from Gypsum Creek. Former gage at site 800 feet 

upstream at different datum.

Drainage area.- 957 square miles; 849 square miles at former site (revised)

Hecoras available.- October 1946 to September 1947, February 1907 to December 1909 at 

site above Gypsum Creek, 800 feet upstream, published as Eagle River at Gypsum (exclude flow of Gypsum Creek).

Extremes.- Maximum discharge during year, 5,150 second-feet June 21 (gage height, 8 05 

leet) from rating curve extended above 2,600 second-feet; minimum daily, 133 secondfeet Mar. 1.

. 1 ?? 7 "^' 194S-47: Maximum discharge observed, 5,720 second-feet June 20, 1909 (gage 

height, i 72 feet, site 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. ' 

hemarks. - Records excellent except those for periods of ifp effect r tin gape-height 

record which are fair. 4,220 acre-feet diverted in 1947 by Ewing, Wurtz, and Columbine ditches tc Arkansas River Basin. Records of water analyses for th? water year 

1947 are given in Water-Supply Paper 1102.

Rating table, water year 1946-47, except period of ice effect

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

(Shifting-control method used Nov. 7 to Dec. 2)

2.9

3.0 

3.3

125

145

250

3.7 

4.2 

4.7

375

670

1,010

5.3

6.4 

7.8

1,520

2,730

4,750

Discharge, in second-feet, water year October 1946 to September 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.

a!85 aiao

a!95

a!90

a2o5

a205

aE25

a220

a215

a235

2E7

237

262

265

254

E65

279

286

282

279

28E

279

E72

282

282

279

272

276

293

300

282

Nov.

265

258

251

254

262

251

244

248

251

240

218

206

218

224

234

218

203

203

206

212

221

206

212

227

215

197

227

224

218

215

~

Dec.

209

218

212

200

221

221

221

215

194

170

191

212

215

209

206

197

179

137

141

191

179

176

200

191

182

191

*194

185

145

138

134

Jan.

140

150

165

160

155

175

180

175

175

175

175

175

180

175

160

150

160

175

170

*170

175

175

180

175

175

175

170

165

170

150

155

Feb.

150

165

175

170

170

180

180

185

173

185

182

160

160

170

170

173

182

179

*170

160

145

158

160

158

155

152

160

155

_

_

-

Month

October. .............................. .

November . ........................ ..... ...

December . .......................... .......

Calendar year .................. ...

January. ............ .................... .

February. ..................................

March. .......... ............... ..........

April. .....................................

May................. .............. .......

June ................ ..........

July. .... ............................. ...

August ......................... ..... .....

September... ........ . ...................

Water year 1946-47 ...... .......... ....

Mar.

133

145

170

165

158

168

162

160

168

170

170

160

155

162

158

165

191

254

279

262

262

286

290

224

191

191

188

200

221

224

224

Apr.

206

206

224

227

206

191

185

179

197

203

203

188

182

194

248

254

240

293

282

272

363

521

575

485

410

380

497

449

405

415

-

Secondfcot-days

7,790

6,828

5,874

5,205

4,682

6,056

8,880

58,925

86,880

57,526

16,534

11,000

276,180

May

515

820

1,310'

1,800

2,270

2,320

2,490

2,660

3,090

2,980

2,890

2,220

1,760

1,660

1,550

1,610

1,550

1,640

1,570

1,690

1,780

2,100

2,070

1,690

1,590

1,930

2,060

2,280

1,900

1,560

1,570

Maximum

300

265

221

- *

180

185

290

575

3,090

4,740

3,190

820

612

4,740

June

1,560

1,760

2,240

2,630

2,320

2,020

2,410

3,610

4,320

3,300

3,020

2,740

2,240

2,200

2,220

2,550

3,200

3,550

3,660

4,200

4,740

3,640

2,830

2,330

2,290

2,680

3,060

3,160

3,210

3,190

-

Minimum

180

197

134

140

145

133

179

515

1,560

794

314

265

133

July

3,050

3,030

3,070

3,190

3,090

2,830

2,630

2,550

3,100

2,730

2,300

2,110

1,860

1,730

1,690

1,840

1,520

1,450

1,300

1,220

1,140

1,190

1,230

1,230

1,110

1,030

942

886

858

826

794

Aug.

794

716

664

644

820

728

605

575

816

664

605

593

551

521

473

461

461

515

533

485

473

467

449

425

425

390

367

347

332

321

314

Mean

251

228

189

168

167

195

296

1,901

2,896

1,856

533

367

757

Sept.

300

286

276

279

268

272

276

265

279

363

612

545

503

515

503

461

425

425

443

410

363

359

343

339

328

324

314

307

307

310

Runoff in 

acre-feet

15,450

13,540

11,650

10,320

9 290

12)010

17,610

116,900

172,300

114,100

32 790

21^820

547,800

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station

Note.- Stage-discharge relation affected by ice Dec. 30 to Feb. 7.

it Redcllff.
TRIBUTARIES ABOVE GUNNISON RIVER 79 

Turkey Creek at Redcliff, Colo.

Location - Water-stage recorder, lat. 39°30i50", long. 106°22'05", in sec. 19, T. 63., 

K. 8<J W. , at Redcliff, 800 feet upstream from mouth. Datum of gage is 8,639.42 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 1947.

Average discharge.- 11 ypars, 32.3 second-feet.

Extremes .- Maximum discharge during year, 300 second-feet June 9 (gage height, 2.76 feet); 

minimum observed, 1.6 second-feet, Feb. 17 (discharge measuremtnt), but may have been 

less during period of no gage-height record.

1913-21, 1944-47: Maximum discharge observed, 670 second-feet June 13, 1918 (gage 

height, 4.7 feet, datum then in use); minimum discharge, 1 second-foot Oct. 21, 1919 

(gage height, 1.34 feet, datum then in use).

Remarks.- Records excellent except those below 15 second-feet, which are fair. A few 

small diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 194T

Day

1

2

3

4

5

6

7

8

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

5.5

5.1

5.5

4.9

5.3

4.3

5.3

5.3

4.1

5.1

5.1

4.1

5.1

4.7

4.5

4.5

3.2

3.4

4.7

4.3

4.5

4.3

4.1

3.5

4.1

3.9

3.9

4.5

3.7

Nov.

> 4.0

(*)

~

Dec.

> 3.2

(*)

Jan.

> 2.0

(*)

Feb.

> 1.8

(*)

-

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

May. .......................................

July .......................................

September. ............................ ....

Water year 1946-47 ................. ....

Mar.

> 2.2

(*)

Apr.

I 4.6

*10

9.4

9.2

15

21

24

20

18

20

18

15

16

19

-

Secondfoot-days

139.3

99.2

8,221.4

50 4

293.5

13,042.4

Hay

32

57

70

99

98

98

108

120

122

120

104

88

80

81

84

84

88

93

94

99

113

118

113

102

106

118

127

131

118

111

108

Maximum

.

206

16

278

June

109

126

144

154

156

160

183

238

278

235

220

183

162

156

162

187

212

248

250

265

242

233

194

171

162

158

165

169

171

172

-

Minimum

3.2

.

_

32

5.8

_

July Aug.

167 30

162 27

156 25

158 25

147 26

140 21

131 20

122 20

124 19

113 18

104 18

94 19

85 19

80 18

75 18

70 18

66 19

60 19

55 17

52 16

50 16

49 16

49 16

44 15

41 14

38 14

36 14

35 12

35 12

33 12

33 11

Mean

4.49

3.2

22.5

18 2

9.78

35.7

Sept.

11

11

12

11

11

11

11

10

12

13

16

13

13

11

10

10

9.8

10

9.8

9.4

8.7

7.8

7.0

7.2

7.2

6.8

6.2

5.8

5.8

6.0

-

Runoff in 

acre-feet

197

16,300

582

25,870

Winter discharge measurement made on this day. 

Note.- No gage-height record Nov. 1 to .4pr. 17, Apr. 20-25 (stage-discharge relation affected by 

Ice during most of periods); discharge computed on basis of 5 discharge measurements and weather 

records.
80 TRIBUTARIES ABOVE GUMISON RIVER 

Homestake Creek near Redcliff, Colo.

Location.- Water-stage recorder, lat. 39°29', long. 106°22', in sec. 6, T. 7 S., R. 80 

W. , 3 miles upstream from mouth and 3 miles south of Redcliff.

Drainage area.- 58,9 square miles.

Records available.- May 1944 to September- 1947. 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.- 11 years, 99.0 second-feet.

Extremes.- Maximum discharge during year, 827 second-feet June 20 (gage height, 3.92 feet), 

rrom rating curve extended above 500 second-feet; minimum observed, 2.9 second-feet 

Feb. 17 (discharge measurement), but may have been less during periods of no gageheight record.

1910-18, 1944-47: 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 

Jan. 25, 1915 (discharge measurement).

Remarks . - Records excellent 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 1946 to September 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.

7.0

7.0

9.0

10

11

11

11

12

16

16

16

16

16

16

16

16

16

16

18

18

15

14

15

16

16

14

14

15

16

17

16

Nov.

15

15

15

15

15

15

15

15

15

14

13

13

14

15

15,

14

13

13

13

14

14

*14

13

14

13

13

14

14

14

14

-

Dec.

10

C)

Jan.

> 4.5

C)

Feb.

> 3.0

C)

-

-

-

Month

October. ...................................

November ...................................

December . ..................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March. .....................................

April. ............................. .......

May. .......................................

June ............................... .......

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

e.9

3.1

3.4

3.4

3.3

3.5

3.6

3.7

4.0

3.9

3.9

4.0

4.2

4.5

4.8

5.4

7.5

*10

10

9.5

9.5

10

11

9.0

7.0

6.6

6.6

7.0

7.0

7.0

7.0

Apr.

7.0

7.8

7.8

7.6

7.4

7.6

8.2

8.5

8.5

7.5

9.0

9.5

12

13

17

19

22

*25

24

41

58

82

78

 6

61

70

67

57

57

67

-

Seoondfoot-days

442.0

423

310

27,352.0

139.5

84.0

186.3

932.4

8,885

13,022

8,503

1,969

1,231

36,127.2

May

90

162

240

341

41J

420

420

440

490

460

400

262

202

212

226

189

186

209

198

237

258

323

297

223

248

350

360

370

244

198

220

Maximum

18

15

654

11

82

490

716

500

153

84

716

June

237

332

390

445

310

297

460

632

648

440

380

299

250

272

312

430

562

552

562

716

650

435

299

272

355

455

495

510

515

510

-

Minimum

7.0

13

2.9

7.0

90

237

106

30

23

-

July

500

455

500

495

490

450

435

405

455

395

326

281

246

235

250

268

216

201

177

168

165

162

168

188

153

137

125

118

,118

115

106

Aug.

106

95

89

99

153

108

86

82

74

66

65

72

63

59

52

48

50

65

61

52

51

45

41

48

44

38

35

32

30

30

30

Mean

14.3

14.1

10

74 9

4.5

3.0

6.0:

31.1 2"<7

434

274

63.5

41.0

99.0

Sept.

28

27

36

32

29

28

27

25

24

48

84

66

76

80

65

51

50

56

54

50

42

38

34

30

28

27

26

24

23

23

Runoff in 

acre- feet

877

839

615

54,260

277

X67 "

370

1,850

17 t 620

25, 830

16, 870

3,910

2,440

71,660

winter discharge measurement made on this day. 

Mote.- Stage-discharge relation affected by ice Nov. 1-14, 22-30, Dec. 1-19, 28-31, Jan. 1-b, 

Mar. 21-27, 30, Apr. 1-8. No gage-height record Nov. 15-21, Dec. 20-27, Jan. 6 to Mar. 17 (stagedischarge relation affected by ice during most of periods); discharge computed on basis of 2 discharge 

measurements and weather records.
TRIBUTARIES ABOVE GUNNISON RIVER 81

Gore Creek near Minturn, Colo.

Location .- Water-stage recorder, lat. 39°37', long. 108°26', in SW£ sec. 14, T. 5 S., 

H. Hi W. , at private bridge 1 mile upstream fro.n mouth and 2 miles north of Minturn.

Drainage area.- 100 square miles .

Records available.- May 1944 to September 1947 .

Extremes.- Maximum discharge during year, 1,340 second- feet June 8 (gage height, 4.75 

reet) , from rating curve extended above 830 second-feet; minirrum daily, 15 secondfeet Jan. 16, 30, Feb. 1.

1944-47: Maximum discharge, that of June 8, 1947; minimum daily, 11 second-feet 

Jan. 20, 1945.

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

wnich are fair. A few small diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

26

26

30

30

31

30

31

30

33

35

31

33

34

32

33

33

35

34

32

32

34

33

34

35

34

33

33

33

35

35

33

Nov.

30

32

33

32

31

31

30

b26

b27

b27

b26

27

29

30

30

29

27

27

29

31

32

*b32

b32

29

30

b26

29

28

28

b29

-

Dec.

b29

b29

30

b26

b28

26

26

26

25

b24

26

26

26

26

25

25

24

22

21

24

22

22

24

23

22

22

*21

20

20

18

17

Jan.

18

18

19

17

17

19

19

19

19

19

19

19

18

17

16

15

16

16

16

*16

16

16

17

17

17

17

17

17

16

15

16

Feb.

15

17

18

18

18

18

18

17

16

17

17

16

17

17

17

17

17

17

*17

17

16

17

17

17

17

17

17

17

_

_

-

Month

October. ...................................

November.'. .................................

December . ..................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April. .....................................

Bay.... ................................'....

June .......................................

July. ......................................

August .....................................

September. ............. ...................

Water year 1946-47 ......................

Har.

16

17

17

17

17

17

17

17

17

17

17

17

17

17

16

16

19

21

23

22

*23

22

23

21

b20

20

20

21

23

24

23

Apr.

22

23

25

24

22

20

21

21

21

20

19

19

19

25

30

33

33

*39

36

42

72

92

86

66

61

76

92

75

72

83

Secondfoot-days

1,003

745

42,055

533

476

594

1 289

14^664

23, 688

14,006

3 052

1*482

62,411

Hay

109

178

248

345

440

445

541

643

734

708

604

440

380

385

390

395

410

430

420

450

535

630

584

494

500

572

610

643

511

440

450

Maximum

35

33

30

822

19

18

24

92

734

1,100

170

74

1,100

June

456

578

688

740

630

617

832

1,070

1,040

812

773

630

559

578

650

78O

890

960

1,030

1,100

1,070

844

702

610

676

832

870

897

897

877

Minimum

26

26

17

15

15

16

19

109

456

158

51

«D

15

July

858

870

844

838

812

760

734

734

760

624

541

478

440

385

380

385

345

310

284

264

245

233

280

254

236

218

200

188

180

168

158

Aug.

165

155

145

148

170

140

128

121

117

111

107

109

99

94

88

83

83

94

97

82

81

81

75

72

68

63

59

57

55

54

51

Mecn

32 4

29.3

24.0

115

17.2

17.0

19.2

4-3.0

47 3

452

98 . 5

49.4

171

Sept.

49

48

49

46

45

46

45

42

46

63

74

62

70

70

61

54

53

52

51

48

46

43

42

41

41

41

39

38

38

39

Rnnof f in 

acre-feet

1 990

1^740

1,480

1,060

944

1,180

2,560

29 09O ielaao

27,780

6,050

o 040

123,800

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 12-21, Dec. 11 to Har. 20, Har. 26 to Apr. 17 (stage-discharge 

relation affected by ice during most of periods); discharge computed on basis of 3 discharge measurements and weather records.
82 TRIBUTARIES ABOVE GUNNISON RIVER 

Roaring Fork at Aspen, Colo.

Location.- Water-stage recorder, lat. 39°11'20", long. 106°48'55", in sec. 7, T. 10 S., 

K. B4 tf., at Aspen, three-quarters of a mile upstream from Hunter Creek. Datum of 

gage is 7,884.58 feet above mean sea level, datum of 1929.

Drainage area.- 109 square miles.

Records available.- January 1911 to September 1921 and January 1934 to September 1947 in 

reports or Geological Survey. January 1911 to September 1921 and April 1932 to September 1947 in reports of State engineer. Records since May 24, 1935, ecuivalent to 

earlier records if flow through Twin Lakes tunnel i s added to flow past station.

Average discharge.- 25 years (1911-21, 1932-47), 158 second-feet, including diversion by 

Twin Lakes tunnel.

Extremes.- Maximum discharge during year, 1,330 second-feet June 20 (gage height, 4.68 

reet); minimum daily, 8.9 second-feet Oct. 1, 2.

1911-21, 1932-47: 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 1,200 second-feet; minimum daily, prior to construction of Twin Lakes 

tunnel, 15 second-feet July 15, 16, 1934; minimum daily since diversion through Twin 

Lakes tunnel began, 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.

Cooperation.- Records of diversion by Twin Lakes tunnel furnished by State engineer.

Discharge, in second-feet, water year October 1946 to September 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.

8,9

8.9

13

14

16

14

23

*31

34

34

28

31

34

34

31

31

33

31

29

30

31

28

28

29

27

26

27

27

28

28

27

Nov.

22

25

28

25

25

25

24

26

25

24

23

22

23

24

25

25

24

23

23

*24

25

25

24

27

25

22

24

23

22

22

-

Dec.

22

21

21

22

23

23

24

22

21

20

21

23

22

22

22

20

20

19

18

20

19

19

21

20

20

20

21

19

18

17

16

Month

October. ...............

November. ..............

December. ..............

Calendar year 1946 . .

January. ............

February. ..............

March. .................

April. ...........

May. ...................

June ................

July. ............... .

August .................

September. .............

Water year 194S J47 . .

Jan.

17

19

22

21

21

22

24

25

26

26

26

26

27

28

28

27

*27

28

27

28

27

26

27

27

28

29

30

30

30

25

28

Feb.

28

' 28

29

26

25

2422'

23

24

26

23

22

22

23

23

23

23

*23

22

23

20

21

20

20

20

20

20

17

.

-

Mar.

19

16

17

20

20

20

20

22

23

22

20

20

20

23

20

2O

*20

22

22

21

22

22

23

22

20

20

20

22

22

23

23

Apr.

23

24

26

26

23

22

22

22

23

23

22

22

22

27

32

31

31

36

33

36

52

68

61

61

52

53

64

55

55

66

-

May

88

133

202

312

434

429

420

420

474

452

438

312

286

290

253

226

217

220

226

265

286

336

332

268

293

352

352

384

308

286

312

Observed

forays Ma*im-> Minim-> Mea« acre-fee?

814,8 34 8.9 26.3 1,620

724 28 22 24.1 1,440

636 24 16 20.5 1,260

27,501,5 720 89 75.3 54,560

802 30 17 25.9 1,590

640 29 17 22.9 1,270

643 23 16 E0.7 1,280

1,113 68 22 37.1 2.21T

9,605 474 88 310 19,050

18,96fi 1,170 308 632 37,620

14,972 1,020 114 483 29,700

2,164 133 37 69.8 4,29O

1,000 55 25 33.3 1.980

52,080.8 1,170 8,9 143 103,300

June

312

368

416

496

412

392

478

640

756

565

488

372

308

332

352

540

726

828

756

1,060

1,170

816

630

555

560

738

924

966

1,000

1,010

-

July Aug.

1,000 107

1,000 101

1,020 93

984

984

912

930

840

804

804

708

615

540

460

376

336

296

265

244

223

199

182

179

165

150

141

133

126

125

117

114

Diversions 

to Twin Lak«=s

tunnel 

(acre-feet)

319

208

152

38,920

117

99

125

22O

7,030

12,650

10,930

3,800

1,660

37,310

93

133

107

91

84

79

74

73

76

70

66

61

60

62

76

85

66

58

55

50

50

48

44

41

43

41

40

37

Sept.

34

32

33

30

30

30

30

29

30

35

55

41

45

39

33

32

36

46

39

35

34

31

29

28

30

28

27

25

26

28

-

Aijusted for 

diversion

Runo'f In ( S ec?"daere-feeb feet)

1 , 940 31 . 5

1,650 27.6

1,410 23.0

93,470 129

1,710 27.8

1,370 24.7

1,400 22.8

2,430 4O.8

26,080 424

50,270 845

40,630 661

8,090 132

3,640 61.2

140,600 194

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 1J.-13, 17-19, 25, 26, Nov 

9-12, 17-26, Dec. 29 to Jan. 13, Mar. 5-8.

30 to Dec. 4, Dec.
TRIBUTARIES ABOVE GUNNISON RIVER 83

Roaring Pork at Glenwood Springs, Colo.

Location.- Water-stage recorder, lat. 39°33', long. 107°20', in sec. 9, T. 6 S., R. 89 W., 

at uienwood 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, 

uctoDer laaa to September 1947 in report of Geological Survey. April 1906 to September 1909 and September 1910 to October 1947 in reports of State engineer.

Average discharge.- 41 years (.1905-9, 1910-47), 1,468 second-feet.

Extremes.- Maximum discharge during year, 11,100 second-feet June 21 (gage height, 6.39 

reet); minimum daily, 273 second-feet Dec. 31, Jan. 16.

1905-9, 1910-47: Maximum discharge, 17,600 second-feet June 14, 1918, June 14, 

1921; minimum, 145 second-feet Jan. 21, 1935 (gage height, 0.65 foot); minimum daily, 

179 second-feet Jan. 21, 1935.

Remarks.- Records good except those for period of ice effect, whi:h are fair. Diversions 

above station for irrigation. Transmountain diversion through Twin Lakes and BuskIvanhoe tunnels to Arkansas River Basin. Total flow diverted bv Twin Lakes tunnel 

during water year 1947 was 37,310 acre-feet (see preceding page), and that by BuskIvanhoe tunnel from Fryingpan Creek was 1,440 acre-feet (record of diversion furnished 

by State engineer).

Discharge, in second-feet, water year October 1946 to September 19'7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

437

437

479

472

500

500

597

588

579

633

624

615

633

615

606

606

642

642

606

579

588

579

570

579

570

563

549

556

588

588

549

Nov.

535

521

479

486

493

486

465

486

486

451

419

430

465

472

486

451

424

424

444

479

472

451

451

486

458

392

472

444

437

424

-

Dec.

424

430

402

414

437

430

430

424

380

364

392

414

402

392

386

386

353

304

296

375

336

348

380

358

358

*348

364

358

300

280

273

Jan.

280

b295

b315

b305

b290

b330

b340

b330

b325

326

326

331

331

304

b300

273

284

b310

*b304

b300

b305

b310

b315

b315

b310

316

308

312

308

276

296

Feb.

288

326

353

342

336

342

331

312

308

358

348

320

342

331

336

*358

364

358

348

336

312

348

331

336

331

331

348

336

.

_

-

Month

October. ...................................

November ...................................

December. ............. ....................

Calendar year 1946 ......................

January .................................. .

February ...................................

March ......................................

April ......................................

May. .......................................

June .......................................

July.. .....................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

284

320

342

336

331

342

331

326

342

326

342

331

320

342

336

348

380

465

514

507

528

579

597

465

402

408

397

444

521

556

542

Apr.

472

486

556

542

458

419

424

419

458

444

437

414

397

437

549

606

606

750

730

740

982

1,210

1,250

1,100

1,020

970

1,100

1,080

1,030

1,100

Secondfoot-days

17,669

13,869

11,538

395,988

9,570

9,410

12,604

21,186

112,770

172,390

131,410

42,426

28,105

582,947

May

1,390

2,030

3,040

4,220

4,770

4,940

5,230

5,280

6,140

5,620

5,800

4,350

3,460

3,160

2,970

2,820

2,660

2,790

2,680

2,980

3,200

3,820

2,750

3,060

3,000

3,730

3,730

4,150

3,340

2,800

2,860

Maximum

642

535

437

8,300

340

364

597

1,250

6,140

10, 100

7,570

1,970

1,410

10,100

June

2,880

3,340

4,170

5,130

4,260

3,860

4,870

7,290

8,490

6,450

6,250

5,180

3,970

3,890

3,860

4,390

5,600

6,270

6,270

8,210

10,100

7,880

5,880

4,990

4,890

5,600

6,690

7,050

7,340

7,340

-

Minimum

437

392

273

273

273

288

284

397

1,390

2,880

1,880

882

740

273

July

7,160

7,310

7,520

7,360

7,570

6,950

6,530

5,960

6,140

5,960

5,230

4,770

4,220

3,970

4,000

3,890

3,380

3,180

3,000

2,840

2,580

2,560

2,360

2,440

2,270

2,200

2,110

2,070

2,030

1,970

1,880

Aug.

1,880

1,730

1,640

1,610

1,970

1,710

1,570

1,520

1,460

1,490

1,490

1,570

1,460

1,370

1,310

1,270

1,270

1,380

1,440

1,310

1,270

1,320

1,280

1,200

1,130

1,040

1,020

982

926

926

882

Mean

570

A.K."? *D£

372

1,085

309

336

407

706

3,638

5,746

4 239

1;369

937

1,597

Sept.

860

860

850

820

780

800

800

790

800

1,020

1,410

1,210

1,160

1,100

1,040

994

982

1,160

1,170

1,110

1,020

937

882

850

840

820

790

750

740

760

Runoff in 

acre-feet

35,050

27,510

22,890

785,400

18,980

18,660

25,000

42,020

223,700

341,900

260,600

84 150

55^750

1,156,000

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.
84 TRIBUTARIES ABOVE GUMISON RIVER

Crystal River near Redstone, Colo.

Location.- Water-stage recorder, lat. 39° 19', long. 107° 13", in SVf£ sec. 31, T. 8 S., R. 

BB w., and 8 miles downstream from Redstone. Prior to Oct. 21, 1946, water-stage 

recorder at site l£ miles upstream. Datum of gage was 6,485.07 feet above mean sea 

level, unadjusted. Records equivalent.

Drainage area.- 225 square miles. Drainage area at former site, 220 square miles 

( revised) 1 .

Records available.- May 1935 to September 1947. 1908-9 at site 2 miles dovnstream; 

records not equivalent.

Average discharge.- 12 years, 374 second-feet.

Extremes.- Maximum discharge during year, 2,520 second-feet June 21 (gage height, 7.47 

reet), from rating curve extended above 1,100 second-feet; minimum daily, 45 secondfeet Mkr. 1.

193t>-47: 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 discharge observed, 32 second-feet Jan. 19, 1943 (discharge measurement).

Remarks.- Records good except those for period Oct. 1 to Mar. 31, which are fair. 

Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

64

72

72

74

78

84

100

102

111

111

96

92

92

87

86

86

102

99

86

82

80

86

84

82

78

86

86

92

110

156

140

Nov.

132

123

123

110

112

114

112

108

110

110

104

98

92

100

100

102

96

90.

90

 94

96

92

96

100

90

34

94

93

91

88

-

Dec.

88

88

84

82

90

90

90

86

80

78

84.

88

84

84

82

82

80

74

64

72

70

68

72

70

68

*72

82

76

53

53

54

Jan.

58

63

67

65

64

70

76

78

78

76

75

74

74

72

66

64

*63

66

69

69

69

69

69

70

68

63

61

63

61

56

60

Feb.

59

64

66

63

63

63

61

72

54

68

63

57

63

61

68

74

74

*72

69

69

63

69

66

68

63

66

68

64

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

February

Maroh. .....................................

May. .......................................

September ..................................

Water year 1946-47 ......................

Mar.

45

60

69

69

68

68

66

66

66

64

63

61

60

64

66

63

69

84

92

96

104

118

132

116

106

108

106

114

121

127

123

Apr.

121

128

134

130

123

117

117

117

130

125

123

116

114

132

166

179

185

207

197

215

276

320

302

273

243

255

270

252

237

255

Seocndfoot-days

2,388

118,025

5,370

140,724

May

329

515

807

986

1,080

1,170

1,310

1,360

1,400

1,340

1,270

960

782

710

702

694

726

790

790

884

977

1,080

1,000

824

892

1,030

1,020

1,090

858

718

710

Maximum

132

90

2,450

522

261

2,310

June

678

816

1,010

1,180

1,010

943

1,130

1,760

1,730

1,440

1,580

1,290

1,100

1,000

926

1,040

1,200

1,310

1,440

1,790

2,310

1,700

1,330

1,180

1,170

1,330

1,540

1,660

1,760

1,770

Minimum

53

53

R7fl

148

45

July

1,790

1,860

1,890

1,950

1,910

1,800

1,690

1,590

1,660

1,610

1,460

1,370

1,280

1,240

1,240

1,150

1,040

1,000

960

918

850

782

686

694

662

662

630

622

590

558

508

Aug.

501

468

420

444

522

404

382

370

352

347

360

329

310

276

255

243

249

276

252

225

223

292

255

228

211

201

191

189

181

185

177

Meai

1

77.0

323

18

92

1 33

3C

179

386

Sept.

170

170

162

157

153

157

155

148

159

249

240

195

181

170

161

148

157

221

258

261

223

191

177

170

164

159

155

152

148

159

Runoff in 

acre-feet

4,740

234,100

10,650

279,100

* Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by ice Dec. 30 to Jan. 11, Jan. 14-24, 31, and Feb. 1-2.

No gage-height record Oct. 1-7, Nov. 24 to Dec. 25 (stage-discharge relation probably affected by 

Ice during part of period); discharge computed on basis of 1 discharge measurement, veather records, 

and records for stations on nearby streams.
TRIBUTARIES ABOVE GUNNISON RIVER 85

Four-mile Creek near Carbondale, Colo.

Location.- Water-stage recorder, lat. 39°24', long. 107°23", in SE£ sec. 36, T. 7 S., R. 

9U W., at Holy Cross National Forest boundary, 9 miles west of Carbondale.

Drainage area.- 8.0 square miles.

Records available.- April 1942 to September 1947; no winter records, 1942-45 (discontinue!),

Extremes.- Maximum discharge during year, 120 second-feet May 3, from rating curve extendeel above 75 second-feet; maximum gage height, 3.87 feet Apr. 17 (ice jam ; no flow 

Sept. 1-8, 26-28.

1942-47: Maximum discharge, 146 second-feet May 15, 1944, from ratinf curve extended above 75 second-feet; maximum gage height, 4.53 feet Apr. 24, 1945 (ice jam); no 

flow at times.

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

which are poor. No diversion or regulation.

Discharge, in second-feet, water year October 1946 to September 194

Day

1

2

3

4

5

6

7

8

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

.3

.3

.3

.3

.4

.3

.3

.4

.4

.4

.4

.4

.3

.3

.6

.5

.4

.4

.4

.3

.3

.4

.3

.3

.3

.3

1.4

1.2

.9

Nov.

0.5

.4

.3

.3

.4

.3

.3

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

*.Z

.2

.2

.2

.2

.2

.1

.1

.2

.2

.2

-

Dec.

. 0.2

Jan.

 0.1

(*)

Feb.

 0.3

(»)

.

_

-

Month

October ....................................

November ...................................

December. ..................................

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March. ....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

. 0.5

(")

Apr.

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.8

.8

.9

 1.5

1.9

2.4

3.5

7.0

8.0

10

45

39

29

29

31

29

24

24

32

-

Secondfoot-days

13.0

1.2

6.2

1,643.5

3.1

8.4

15.5

325.6

1,201

382 . 6

64.7

7.5

6.8

204 -.6

May

52

73

66

52

70

67

61

57

52

52

43

37

36

34

33

33

33

31

30

29

28

*29

29

24

23

23

24

26

21

17

16

Maximum

1.4

.5

61

45

73

21

5.7

.9

2.3

73

June

16

16

18

21

19

16

15

14

15

13

14

14

14

15

12

9.3

9.3

9.3

8.9

9.3

14

15

14

12

10

8.9

8.4

8.4

7.4

6.4

-

Minimum

O.I

.1

o

.6

16

6.4

.4

.1

O

0

July Aug.

5.0 0.2

4.3 .2

5.3 .2

5.7 .2

3.9 .2

3.2 .2

3.2 .2

3.5 .2

4.1 .1

2.6 .3

2.0 .9

1.7 .4

1.6 .4

1.6 .5

1.4 .3

1.4 .2

1.3 .4

1.0 .4

1.0 .2

.8 .2

2.3 .2

1.9 .3

1.3 .2

1.0 .1

.8 .1

.6 .1

.6 .1

.4 .2

.4 .1

.4 .1

.4 .1

Meai

C.42

.24

.2

4.50

.1

.3

.5

1C. 9

38 . 7

12.8

2.09

.24

.23

5.59

Sept.

0

o

0

0

0

0

0

0

.5

2.3

1.2

.6

.2

.2

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

0

0

0

.3

.3

-

Runoff in 

acre- feet

26

14

12

3,250

6.1

17

31

646

2,380

759

128

15

13

4,O50

* Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Hov. 3-2O, Apr. 17-22. No gage-height record 

Hov. 21 to Apr. 16 (stage-discharge relation probably affected by ice during entire period); discharge 

computed on basis of 2 discharge measurements at station, 3 discharge measurements made several miles 

downstream, and weather records.
86 TRIBUTARIES ABOVE GUNNISON RIVER

West Divide Creek below Willow Creek, near Raven, Colo.

Location.- Water-stage recorder, lat. 39°17', long. 107°31', In NE^ sec. 14, T. 93., R. 

91 W., a quarter of a mile downstream from Willow Creek and 15 miles south of Raven.

Drainage area.- 32.7 square miles.

Records available.- October 1938 to September 1947 (discontinued).

Extremes.- Maximum discharge during year, 415 second-feet May 8 (gage height, 3.00 feet); 

minimum dally, 0.3 second-foot Oct. 1.

1938-47: Maximum discharge, 876 second-feet May 13, 1941 (gage height, 3.27 feet), 

from rating curve extended above 320 second-feet; no flow during periods in 1938-41.

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

which are poor. No diversion above station.

Plow increased above station by diversion from Clear Pork Muddy Creek (Gunnison 

River Basin) through Thompson Creek feeder ditch. No record of diversions during 1947.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

V

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

2V

28

29

30

31

Oct.

0.3

.4

1.8

1.2

1.5

1.3

1.9

1.4

1.8

2.3

1.4

1.6

1.8

1.5

1.7

1.5

1.9

1.8

1.1

1.3

1.3

1.3

1.4

1.2

1.1

1.1

1.3

1.3

3.9

3.5

2.6

Nov.

2.7

2,3

2,4

1,8

1.5

1.9

1.8

1.8

2.3

2.2

1.9

1.9

1.9

1.9

2.0

1.9

1.9

1.9

*2.3

2.1

2.0

2.0

2.0

2.0

2.0

1.5

1.4

1.6

1.9

2.0

Dec. Jan. Feb.

_

-

Month

December. ..................................

Calendar year 1946 ......................

April .......................... . . . . .

May. .......................................

July. ..................................

September ..................................

Water year 1946-47 .... .................

Mar.

(*)

Apr.

5.0

6.0

5.4

4.5

3.0

7.8

5.6

6.1

3.7

3.5

6.9

9.5

10

16

*34

44

31

30

45

62

80

64

40

34

45

53

42

42

Secondfoot-days

49 5

55.8

8,958.1

52.5

in, 883. 7

May

100

143

183

213

228

240

268

272

300

28S

261

189

172

172

180

186

174

174

160

169

177

177

155

137

137

134

130

126

104

96

94

Maximum

174

6.5

3OO

June

90

90

92

110

90

82

98

110

110

100

102

98

96

114

122

118

116

114

112

114

152

137

118

104

98

96

92

87

80

68

Minimum

.1

.9

.3

July

63

es

 8

73

66

58

54

52

54

42

36

31

27

24

20

20

17

14

12

11

14

11

10

8.6

6.5

5.8

5.5

4.8

4.5

4.8

3.6

Aug.

3.2

3.0

2.9

3.0

4.2

3.8

3.2

2.9

2.1

3.6

5.0

4.0

3.6

3.8

2.9

2.9

4.5

7.1

3.6

2.9

2.5

3.0

3.2

3.2

3.2

2.1

1.7

1.9

3.0

2.0

1.8

Mean

1.8

2«..5

1.75

23.8

Sept.

1.6

1.2

1.4

1.1

1.1

1.1

1.0

1.1

2.1

6.5

6.5

3.6

2.3

1.8

1.6

1.5

1.6

1.9

1.8

1.4

1.1

1.1

1.1

1.0

1.0

1.0

.9

1.0

1.0

1.1

-

Runoff in 

acre-feet

111

17,760

104

21,590
TRIBUTARIES ABOVE GONNISON RIVER 87 

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 192-7 (monthly discharge), October 1933 to 

September 194Y in reports of Geological Survey. August 1921 to September 1947 in 

reports of State engineer.

Average discharge.- 26 years, 101 second-feet.

Extremes.- Maximum discharge during year, 1,290 second-feet May 10 (gage height, 4.91 

feet); minimum daily, 11 second-feet Sept. 29.

1921-47: 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 daily, 3 second-feet Sept. 21, 1926.

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

which are fair. Five small divers! JH'B above station.

Discharge, in second-feet, water year October 1946 to September 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.

21

33

46

46

46

43

47

37

31

33

26

33

29

27

28

33

34

33

35

27

25

26

29

28

25

26

28

33

50

40

29

Nov.

32

30

35

29

*24

25

23

23

b23

b23

b23

b24

24

20

20

30

29

28

*25

19

18

20

17

b!9

b!7

b20

b21

22

20

21

-

Dec.

22

18

bIS

blS

18

19

*19

b!9

b!9

b!9

b!9

b!9

19

18

17

19

blS

b!7

b!5

b!7

blS

blS

19

19

18

14

15

b22

b23

b23

*b22

Jan.

b20

18

18

18

18

18

17

16

16

16

16

16

16

16

16

16

16

16

15

15

*15

15

15

15

15

15

15

15

15

15

15

Feb.

14

14

14

*14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

*14

14

15

15

15

15

15

15

15

15

_

-

Month

October. ...................................

November ......................... .........

December . ........... ....................

Calendar year 194R ......................

January ................. ........... .... .

February ............................. .....

March ......................................

April ................ ..................

May. ................ ......................

June ..................... .................

July ................ . ....................

August .............. ...................

September. ...... ... . ...................

Water year 1946-47 . . ..................

Mar.

b!5

15

15

*15

14

14

14

14

14

14

14

14

14

14

14

15

16

20

20

22

22

25

25

23

23

20

20

23

24

28

29

Apr.

26

30

33

32

28

27

23

27

29

26

24

28

30

35

55

64

73

87

82

104

129

152

143

121

101

109

137

135

116

135

Secondfoot-days

1,027

710

578

27 , 519

498

400

2,141

19,567

2^144

904

553

38,117

May

220

346

530

691

770

850

924

1,030

1,060

1,050

840

546

474

495

467

404

432

481

554

720

800

850

740

628

710

72O

610

488

335

384

418

Maximum

50

35

03

731

20

15

29

152

1.O6O

800

110

50

47

1,060

June

340

379

432

530

340

335

397

411

357

274

262

254

286

299

226

220

220

238

247

244

800

432

294

226

200

188

178

160

139

118

-

Minimum

21

17

14

1C

15

14

14

23

22C

118

35

11

11

July

106

100

101

109

91

80

87

94

100

110

94

75

63

64

66

65

60

62

56

50

52

54

56

52

50

47

44

42

41

38

35

Aug.

32

29

28

34

39

36

35

37

41

46

50

28

31

33

27

25

30

35

24

22

20

38

23

23

20

18

19

20

20

22

19

Mern

33.1

23 7

18.6

75.4

16.1

14.3

18 .4

71.4

631

301

69.2

29.2

18.4

104

Sept.

17

16

16

14

14

16

16

15

20

45

47

30

23

20

17

16

20

27

23

17

14

13

12

13

13

12

12

12

11

12

-

Runoff in 

acre-feet

2,040

1,410

1,150

54,590

988

793

1,130

4,250

38,810

4^250

1,790

1,100

75,610

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- Ho gage-height record Jan. 2 to Feb. 3 (stage-discharge relation affected ty ice during 

ost of period), July 8 to Aug. 13: discharge computed on basic, of 1 discharge measurement, weather 

ecords, and records for stations on nearby streams.

852060 O - 49 - 7
88 TRIBUTARIES ABOVE GUNNISON RIVER 

Plateau Creek near Cameo, Colo.

Location.- Water-stage recorder, lat. 39°II 1 , long. 108° 16', In SW-J- sec. 18, T. 10 S., 

K. yy tf., 1.1 miles upstream from mouth and 4 miles northeast of Cameo.

Drainage a'rea.- 604 square miles.

Records available.- April 1936 to September 1947.

Average discharge.- 11 years, 225 second-feet.

Extremes.- Maximum discharge during year, 2,500 second-feet May 9 (gage height, 5.99 

feet); minimum dally, 44 second-feet, Aug. 3.

1936-47: 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 s?cond-feet July 

14, 15, Aug. 17, 18, 1940.

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

which are fair. Many diversions above station for Irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

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.

47

124

67

76

121

95

115

95

93

90

90

88

100

98

98

95

100

100

95

93

95

93

90

90

90

88

86

86

106

121

112

Nov.

93

98

81

88

93

88

83

100

100

83

83

88

95

100

100

83

81

81

81

98

90

81

90

157

74

69

81

81

81

78

-

Dec.

81

83

74

78

86

*88

106

88

74

58

65

74

72

72

81

74

63

52

93

121

67

69

72

71

71

72

74

74

72

60

50

Jan.

50

54

56

54

50

55

*58

58

56

56

56

58

58

54

52

45

52

58

62

62

62

60

62

64

62

62

62

68

64

58

62

Feb.

60

64

72

72

72

70

68

66

60

70

62

70

70

*70

74

78

86

80

72

70

76

83

83

78

74

72

78

83

_

-

Month

October. ...................................

November . ................... ..............

December. ..................................

Calendar year 3 94fi ...................

January .................................. .

February .................................

March ......................................

April ......................................

May........................................

June ......... .................. ..........

July. ....................... ..............

August. ....................................

September ....................... ..........

Water year 1946-47 ......................

Mar.

63

74

*74

' 76

74

72

74

74

81

81

78

81

72

83

76

76

100

127

145

148

178

197

232

157

109

121

124

136

160

169

197

Apr.

a!80

a!90

a!86

alSO

115

103

112

103

121

121

103

88

88

115

175

218

214

298

256

256

378

450

426

312

242

236

323

342

309

323

-

Secondfoot-days

2 937

2*679

2^335

54,598

1,790

2,033 

3,509

6,533

35,761

16,650

2,957 

2,438

2,572

82,194

May

554

770

1,080

1,560

1,770

1,790

1,980

2,020

2,050

1,810

1,800

1,150

920

920

902

815

785

866

836

1,110

1,180

1,340

1,270

908

998

1,010

908

805

626

590

638

Maximum

124

157

121

828

68

86

232

450

2,050

1,240

163

211

2,050

June

582

534

614

760

662

538

586

602

574

498

490

578

542

630

526

454

438

434

506

466

1,240

938

690

570

482

434

394

346

292

250

-

Minimum

47

69

50

28

45

60

63

554

250

47

44

55

44

July

208

175

154

172

163

139

133

121

148

172

124

95

78

74

72

71

69

67

65

60

58

58

62

60

56

53

53

50

50

50

47

Aug.

48

47

44

48

56

50

47

52

67

98

133

78

93

163

93

88

93

93

90

83

78

95

103

86

76

69

67

81

81

69

69

Hern

94.7

75. '3

150

57.7

72.6

113

218

1,154 

555

95 4

78 . 6

85.7

225

Sept.

62

60

55

56

56

56

58

58

62

211

178

151

124

106

95

93

88

88

93

95

86

81

76

76

69

69

67

65

69

69

-

Runoff in 

acre-feet

5,830

5,310

4,630

1 K8,300

3,550

4,030

6,960

70^930

33,020 

5,870

4,840

5,100

IRj.OOO

* Winter dlschargemmeasurement made on this day.

a No gage-height record; discharge computed on basis of records for station at Collbran.

Note.- Stage-discharge relation affected by ice Dec. 29 to Feb. 20.
TRIBUTARIES ABOVE GONNISON RIVER

Buzzard Creek near Collbran, Colo.

Location.- Water-stage recorder, lat. 39°16', long. 107°52', In sec. 14, T. 93., R. 94 

W., half 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 

iaaa to September 1947 in reports of Geological Survey. August 1921 to September 1947 

in reports of State engineer.

Average discharge.- 26 years, 53.9 sec nd-feet.

Extremes.- Maximum discharge during year, 898 second-feet May 5 (gage heigf 1;, 5.65 feet); 

minimum daily, 0.7 second-foot Aug. 3.

1921-47: 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 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 1946 to September 1947

Day

1

?

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.9

2.6

2.9

3.3

4.8

5.7

4.8

4.3

4.8

4.0

4.3

4.8

4.3

4.3

3.8

3.6

5.4

7.9

7.5

6.2

5.7

6.0

5.7

,5.4

5.7

6.O

5.4

5.1

6.0

17

11

Nov.

7.2

6.0

5.1

5.1

 5.1

4.6

3.6

5.1

4.8

b4.8

b4.3

b4.6

l>4. 6

5.4

5.4

1)4.6

t>5.1

4.8

4.7

4.6

4.6

4.8

5.0

1)5.6

1)6.2

6.2

6.2

6.2

6.2

6.2

-

Dec.

6.5

6.8

6.2

5.4

5.1

5.7

*6.5

1)5.7

1)4.8

5.7

5.4

5.1

5.4

5.7

4.8

6.0

4.8

3.5

4.1

4.6

5.2

5.2

5.2

5.0

4.5

4.0

5.5

6.5

7.0

6.7

*6.5

Jan.

5.2

3.5

3.4

3.1

2.8

2.2

2.4

2.3

2.2

2.1

2.2

2.3

*2.3

2.4

2.3

2.2

2.0

2.1

2.2

2.4

2.5

2.5

2.6

2.8

2.9

2.8

2.7

3.0

2.9

2.8

2.7

Feb.

2.7

2.8

*2.9

2.9

2.9

2.9

2.9

2.9

3.2

3.9

3.6

3.9

4.3

4.0

3.9

4.6

5.0

5.3

*5.6

5.8

6.0

6.2

6.2

6.1

6.1

6.2

6.4

6.6

-

_

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May........................................

September ..................................

Water year 1946-47 ......................

Mar.

6.6

6.6

6.6

 6.6

6.4

6.6

6.6

6.8

7.0

7.2

7.4

7.6

7.8

8.0

8.2

8.6

8.8

*9.2

10

11

11

12

13

12

12

12

13

16

20

24

26

Apr.

44

58

58

47

29

20

*23

26

37

25

22

14

16

47

92

84

96

124

96

117

175

198

182

109

76

92

130

132

132

174

-

Secondfoot-days

170.2

156.7

169.1

12,622.9

81.8

125.8

324.6

2,475

10,344

3,361

432.0

139.2

128.6

17,908.0

May

270

370

516

610

676

628

604

580

577

447

471

336

297

280

266

270

243

237

223

243

239

245

241

209

194

200

201

191

177

153

150

Maximum

17

7.2

7.0

335

5.2

6.6

26

198

676

232

43

11

15

676

June

143

120

114

153

118

106

100

103

99

86

92

142

132

145

132

99

84

77

93

86

137

232

186

140

106

89

77

68

56

46

-

Minimum

1.9

3.6

3.5

.2

2.0

2.7

6.4

14

150

46

1.7

.7

2.0

.7

July

35

33

43

32

24

21

19

18

38

28

17

13

10

8.3

6.2

7.9

7.5

7.5

6.8

5.4

6.5

7.5

7.9

7.5

4.8

4.0

3.8

2.9

2.6

2.2

1.7

Aug.

1.2

.9

.7

.8

1.7

2.2

3.1

3.1

2.9

3.6

4.3

5.7

6.2

11

9.0

6.8

5.7

5.7

8.6

6.8

5.7

4.8

4.3

4.3

3.8

3.5

4.0

5.7

4.8

4.3

4.0

Hear

5.49

5.22

5.45

34.6

2.64

4.49

10.5

82.5

334

112

13.9

4.49

4.29

49.1

Sept.

3.6

2.7

2.9

2.7

2.0

2.0

2.0

2.1

3.1

7.9

15

10

6.8

4.3

3.5

3.1

2.6

2.9

9.4

6.8

5.4

4.6

3.8

3.5

3.1

3.3

2.9

2.6

2.0

2.0

-

Runoff in 

acre-feet

338

311

335

25,030

162

250

644

4,910

20,520

6,670

857

276

255

35,530

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 18-23, Dee. 19 to Apr. 1 (stage-discharge relation affected by 

ice during part of periods); discharge computed on basis of 6 discharge measurements and weather 

records. No gage-height record June 3O to July 6, July 21-23; discharge computed on basis of records 

for stations on nearby streams.
90 TRIBUTARIES ABOVE GDNNISON RIVER

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.,

IT! 94 rf., 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 1947.

Extremes.- Maximum discharge during year, 464 second-feet May 29 (gage height, 4.91 feet, 

result of failure of small reservoir dam), from rating curve extended above 180 secondfeet by logarithmic plotting; minimum daily, 4.2 second-feet Dec. 19, Feb. 13-22.

1945-47: Maximum discharge, that of May 29, 1947; minimum daily, 3.2 second-feet, 

Mar. 16-26, 1946.

Remarks.- Records good except those for periods of ice effect, which are fair. No diversion "above station. Several small storage reservoirs above station for irrigation.

Discharge, in second-feet, water year October 1945 to September 1946

Day

1

2

3

4

5

6

7

8

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

14

15

15

15

15

15

15

*15

14

14

13

13

13

13

13

12

12

12

11

10

10

10

9.9

9.6

9.9

12

15

12

blO

Nov.

bll

blO

b!2

blO

*9.6

9.0

9,0

9.0

9.0

8.5

8.2

8.0

8.0

8.0

8.2

7.7

7.4

*7.2

7.2

6.9

6.9

6.7

6.7

6.7

6.7

6.4

6.0

5.8

5.8

5.8

-

Dec.

5.8

5.8

5.6

5.6

5.6

5.4

5.4

5.4

*5.4

5.2

5.2

5.2

5.2

5.2

5.0

4.8

4.6

b4.3

b4.2

b4.8

5.2

5.2

5.2

5.4

5.8

5.8

6.0

6.0

7.7

9.6

9.6

Jan.

8.2

*8.0

7.2

7.2

7.2

7.2

6.9

6.9

6.9

6.9

6.9

6.9

7.2

7.2

7.2

6.9

6.9 6.9-

6.7

6.2

5.8

5.6

5.6

5.6

5.4

5.4

5.4

5.6

5.4

5.2

5.2

Feb.

5.2

4.8

4.8

4.8

4.6

4.6

4.6

4.6

4.4

4.4

4.4

4.4

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.4

.4

.4

.4

.4

.4

_

_

-

Month

October. ............................ . .

November. .............................. ...

December ...................................

Calendar year 1945 ...................

January .................................. .

February ............................... ...

March ......................................

April ......................................

May. .......................................

June. ......................................

July. ......................................

August .....................................

September. ..............................

Water year 1945-46 ... ...... ...........

Mar.

.4

.4

 .4

.6

.6

.6

.6

.8

.8

.0

5.0

5.0

5.0

5.2

5.0

5.0

5.6

5.8

5.8

5.8

5.8

6.2

6.2

5.4

5.2

5.0

5.2

5.4

5.8

6.0

5.8

Apr.

5.6

5.6

5.6

5.6

5.2

4.8

4.8

4.8

4.8

4.6

4.4

4.4

4.4

5.4

7.7

9.0

11

11

10

15

25

34

33

27

23

26

33

31

27

42

-

Secondfoot-days

394.4

237.4

175.2

9, 906 . 1

201 8

124!o

161.4

434.7

4> 626

2,729

1,790

1,082

477.0

12,432.9

May

66

96

128

150

160

173

173

177

173

177

132

118

123

124

109

107

123

132

142

164

195

226

202

179

188

184

168

154

160

114

109

Maximum

15

12

9.6

160

8 s'.z2

6.2

42

226

216

84

68

29

226

June

94

96

116

174

112

94

100

107

102

87

89

83

102

86

68

62

66

78

79

109

216 .

130

93

76

65

59

54

49

44

39

-

Minimum

9.6

5.8

4.2

3 2-

5.2

4.2

4.4

4.4

66

39

34

15

9.0

4.2

July

36

37

38

37

34

34

35

37

50

52

50

48

46

51

52

57

56

59

58

56

71

76

82

82

80

78

73

80

84

83

78

Aug.

68

63

58

59

57

52

52

50

50

49

38

28

30

26

24

23

24

22

20

24

26

32

30

28

28

27

22

20

19

18

15

Mean

12.7

7.91

5.65

27.1

6.51

4.43

5 21

14!s

149

91 O

57^7

34.9

15.9

34.1

Sept.

20

20

20

18

18

18

18

22

22

29

24

20

20

18

17

14

13

12

12

11

11

11

12

11

11

12

12

12

10

9.0

-

Runoff in 

acre-feet

782

471

348

19,660

400

246

320

862

9,180

5,410

3,550

2,150

946

24,660

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
TRIBUTARIES ABOVE GUNNISON RIVER 91

Cottonwood Creek at upper station, near Molina, Colo.

Location.- Water-stage recorder and Parshall flume, lat. 39°08', long. 10?°00', in SE-J 

see. 3. T. 11 S., R., 95 W., 6 miles southeast of Molina.

Drainage area.- 16.3 square miles.

Records available.- May 1945 to September 1947.

Extremes.- Maximum discharge during year, 79 second-feet May 6 (gage heigVt, 2.66 feet), 

rrom rating curve extended above 45 second-feet; minimum daily, 3.6 second-feet Jan. 4.

1945-47: Maximum discharge, 81 second-feet May 12, 1946 (gage height, 2.80 feet), 

from rating curve extender! above 45 second-feet; minimum daily, that of Jan. 4, 1947.

Remarks.- Records fair. No diversion above station. Several small reservoirs above 

station for irrigation.

Discharge, in second-feet, water year October 1945 to September 1S46

Day

1

2

3

4

5

6

7

8

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

13

13

12

12

12

12

13

11

11

11

11

*11

10

11

12

11

11

7.0

6.2

6.0

6.0

6.0

7.0

8.9

6.7

6.7

Nov.

b6.7

5.8

b4.8

b5.2

b5.2

*5.1

5.1

5.1

5.1

5.1

5.1

4.8

4.6

4.6

4.5

4.5

4.5

4.2

4.0

*3.9

3.9

3.9

3.9

4.2

b4.4

b4.6

4.6

4.6

4.6

4.6

-

Dec.

4.6

4.8

4.8

4.8

5.1

5.1

5.1

b5.4

5.6

*5.6

6.0

6.0

5.8

5.8

5.6

5.6

b5.6

b5.1

b4.7

b5.6

b5.6

5.6

5.6

5.6

5.6

5.6

5.9

5.8

b5.8

4.6

4.0

Jan.

4.1

4.1

3.9

3.6

3.7

4.0

3.8

*3.7

3.8

3.9

3.9

3.9

3.9

4.0

3.9

3.7

3.9

4.2

4.5

5.1

5.3

*5.4

5.4

5.6

6.0

5.8

5.4

6.0

5.8

4.6

5.0

Feb.

4.8

4.6

4.8

5.0

*5.0

5.0

5.0

5.0

5.0

4.8

4.7

4.6

4.6

4.6

4.6

4.6

4.5

4.4

*4.4

4.3

4.5

4.7

5.0

5.0

4.9

5.0

5.0

5.0

_

-

-

Month

October. ...................................

November. ........................ .........

Decembe r .............. ....................

Calendar year 1945 ......................

January .................................. .

February ...................................

March. . .................. ... ........ ...

April ....................... ...... .......

May......................... ..............

June. . . ........ . . .......................

July. ......................... ....... ....

August ........................ ........ ...

September ..................... .......

Water year 1945-46 ......... ....... ....

Mar.

5.0

5.0

5.0

4.9

4.8

4.8

4.8

4.9

4.9

5.0

5.0

5.1

5.3

5.6

6.0

6.2

6.8

7.0

*7.2

7.4

7.6

7.8

7.8

7.6

7.0

6.6

6.9

6.9

7.1

7.4

7.4

Apr.

7.1

7.4

7 .A

7.4

7.6

7.6

6.9

*7.1

7.6

7.4

7.6

8.3

8.1

8.1

8.6

8.6

9.1

9.4

9.4

11

16

16

14

12

12

14

15

14

15

22

-

Second 

foot-days

317.5

141.2

166.3

5,305.4

139.9

133.4

190.8

311.7

1,362

1,104

1 237

lloiS

785

6,903.8

May

32

44

50

55

56

57

56

57

55

59

50

42

42

41

38

35

34

32

34

36

39

37

39

41

40

41

48

46

44

42

40

Maximum

13

6.7

6.0

41

6.0

5.0

7.8

22

59

54

45

45

40

59

June

39

37

38

53

48

43

40

40

40

38

39

39

40

37

35

33

34

36

37

37

54

50

45

35

24

24

23

22

22

22

-

Minimum

6.0

3 9

4io

3 9

3.6

4.3

4.8

6.9

22

31

25

16

3.6

July

3]

39

39

36

34

34

35

36

40

37

37

35

34

34

40

44

40

44

44

44

43

45

44

42

43

44

44

43

4*

44

44

Aug.

45

44

44

44

42

40

39

37

34

34

34

33

32

30

29

31

32

31

29

29

29

31

29

29

28

27

26

26

26

26

25

Mean

10.2

4.71

5.36

14 5

4.51

4.76

6.15

10.4

43.9

36.8

39 9

32 . 7

2ei2

18.9

Sept.

24

29

29

28

29

29

28

29

35

40

35

32

31

29

29

28

28

26

25

25

24

23

22

21

20

19

18

17

16

17

-

Runoff in 

acre-feet

630

280

330

10,520

277

265

376

618

2,700

2 290

2)450

2,010

1,560

13,690

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Mote.- No gage-height record Dec. 30 to Mar. 25 (stage-discharge relation affected by ice during 

ost of period); discharge computed on basis of 5 discharge measurements and weather records.
92 TRIBUTARIES ABOVE GUNNISON RIVER

Bull Creek at upper station, near Molina, Colo.

Location.- Water-stage recorder, lat. 39°07 I , long. 108°02', in SWij sec. 5, T. 11 S,, R. 

95 W., 6 miles south of Molina.

Drainage area.- 9.7 square miles.

Records available.- May 1945 to September 1947.

Extremes.- Maximum discharge during year, 65 second feet May 10; maximum gage height, 

2.94 feet Oct. 12 (beaver dam); minimum daily discharge, 0.8 second-foot Nov. 16-23.

1945-47: Maximum discharge, that of May 10, 1947; maximum gage height, that of Oct. 

12, 1946; minimum daily discharge, that of Nov. 16-23, 1946.

Remarks.- Records good above 10 second-feet and fair below. One diversion and several 

small reservoirs above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

5.8

7.0

7.3

6.1

6.1

5.2

6.1

4.7

4.5

3.7

3.3

3.8

3.0

3.2

3.3

3.3

3.3

3.2

3.3

3.3

2.7

2.6

2.5

2.6

2.7

2.7

3.2

3.3

3.3

2.4

2.4

Nov.

2.4

2.7

4.0

3.5

3.8

*3.7

4.0

3.8

3.2

2.4

1.7

1.6

1.5

1.4

1.0

.8

.8

.8

*.8

.8

.8

.8

.8

.9

1.0

1.2

1.8

1.8

1.8

1.8

-

Dec.

1.8

1.8

1.8

1.8

2.0

2.0

2.1

2.1

2.1

*2.4

2.3

2.7

2.5

2.1

2.1

1.8

1.8

1.8

1.8

1.8

2.0

2.0

2.0

2.0

2.0

2.0

2.1

2.1

2.0

2.1

2.2

Jan.

2.2

2.2

*2.4

2.4

2.5

2.6

2.6

2.6

2.6

2.7

2.9

2.9

2.9

3.0

3.0

3.2

3»2

3.2

3.3

*3.3

3.3

3.3

3.3

3.3

3.3

3.5

3.3

3.3

3.3

3.2

3.2

Feb.

3.2

3.2

3.2

3.2

*3.2

3.2

3.2

3.2

3.2

3.2

3.0

3.0

3.0

3.0

2.9

2.

2.

*2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

_

-

-

Month

October ....................................

November ......................... .........

December ...................................

Calendar year 1946 ......................

January. ............................... . .

February ........................ ..........

March. .............. ......................

April. .............. ......................

May. .......................................

June ................ ......................

July. ......................................

August .............. ........... ...... ...

September. .................................

Water year 3 946 47 .......... ...........

Mar.

2.7

2.7

*2.7

3.0

3.0

3.2 sis

3.3

3.3

3.5

3.5

3.7

3.7

3.7

3.8

4.0

4.0

*4.0

4.0

4.0

4.0

4.0

4.0

3.8

3.5

3.5

3.5

3.5

3.5

3.7

3.7

Apr.

3.7

3.8

3.8

3.7

4.0

4.0

*3.5

3.8

3.7

3.7

3.7

4.7

4.9

4.0

4.5

4.5

4.7

4.9

4.7

5.8

7.6

7.9

6.3

5.2

4.9

5.8

6.8

6.5

6.8

10

-

Secondfoot-days

119.9

57.4

63.1

2,707.3

92.0

82 .O

109.7

151 9 i,on'

864

430.1

332 3

224.3

3,5.37.7

May

14

18

28

33

36

49

50

50

48

54

47

31

27

29

28

25

25

25

29

31

31

31

31

29

30

32

32

37

32

25

24

Maximum

7.3

4.0

2.7

31

3.5

3.2

4.0

10

54

48

20

19

15

54

June

23

22

29

45

37

30

33

41

38

29

32

33

29

27

21

21

23

27

29

24

46

48

38

28

22

19

18

18

18

16

-

Minimum

2.4

.8

1.8

. 8

2.2

2.7

Z.I

3.5

14

16

8.5

5.2

4.4

.8

July

16

14

14

14

12

11

12

14

20

18

18

16

14

12

10

10

10

9.4

8.5

8.5

9.7

12

14

16

16

16

17

18

17

17

16

Aug.

15

10

13

12

12

19

19

17

15

19

18

14

14

14

9.1

7.0

6.8

6.8

6.3

5.8

6.5

11

7.9

7.0

6.5

6.1

5.2

5.6

7 .0

8.5

8.2

Mean

3.87

1.91

2.04

7.42

2 97

2 93

3 54

5.O6

32.6

28 .8

13 9

10.7

7.48

9.69

Sept.

7.9

7.6

8.2

8.2

8.2

8.2

8.2

8.2

11

15

14

13

8.8

8.8

8.2

4,

5.

'. .'7

5.6

14

"

Runoff in 

acre- feet

238

114

125

5,370

182

163

218

301

2,010

1,710

853

659

445

7,020

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 9-26, Dec. 8-11, 17-19, Feb. 20, 21, Map. 1, 

24, 25, 27.
TRIBUTARIES ABOVE GUNNISON RIVER 93

Coon Creek at upper station, near Mesa, Colo.

Location.- Water-stage recorder, lat. 39°06', long. 108°07', in NE£ sec. 16, T. 11 S., R. 

96 I., 5 miles south of Mesa. Altitude of gage is 7,230 feet above mean seq level (by 

barometer).

Drainage area.- 6.1 square miles.

Records available.- May 1945 to September 1947 (discontinued).

Extremes.- Maximum discharge during year, 30 second-feet May 6 (gage height, 2.40 feet); 

minimum daily, 0.2 second-foot Dec. 3 to Jan. 17, Mar. 24-28.

1945-47: Maximum discharge, 35 second-feet May 12, 1945; maximum gage-height, that 

of May 6, 1947; minimum daily discharge, that of Dec. 3. 1946, to Jan. 17, 1947, 

Mar. 24-28, 1947.

Remarks.- Records fair. Several small reservoirs and one diversion above station for 

irrlgation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.4

.5

.7

.7

.8

.8

.9

.8

.7

.8

.6

.7

.6

.6

.5

.4

.5

.4

.5

.5

.5

.5

.5

.5

.5

.4

.6

.7

.6

.4

Nov.

0.4

.4

.4

.4

*,4

.3

.3

.3

.3

.3

.3

b.3

b.3

b.3

.3

.3

.3

*.5

.5

.5

.5

.5

.5

.5

.5

.5

.3

.3

.3

-

Dec.

0.3

.3

.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

Jan.

0.2

,2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.4

.4

,4

.4

.4

.4

Feb.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

-

_

-

Month

December. ..................................

Calendar year 1946 ......................

May. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.2

.2

,2

.2

.2

.3

.4

.4

Apr.

0.4

.5

.5

.4

.4

.4

.3

.3

.4

.4

.4

.4

.4

.5

.7

.7

.8

1.2

1.7

2.3

2.6

2.3

1.7

1.5

1.8

2.3

2.2

2.4

4.5

-

Second 

foot-days

18.1

11.4

6.4

615.4

8.2

10.5

296.3

115.9

129.5

42.6

809.6

May

6.1

9.3

13

18

19

19

20

19

16

15

12

9.3

9.3

8.8

8.1

7.4

7.6

7.6

7.4

6.7

6.3

6.1

5.4

5.2

4.8

4.8

5.0

4.5

4.0

3.8

Maximum

0.9

.5

.3

12

.4

.4

.4

20

6.1

5.9

7.2

4.0

20

June

3.4

3.3

3.8

5.4

4.2

3.8

3.4

3.2

3.3

3.3

3.2

3.0

3.8

3.4

3.3

3.4

3.3

3.9

3.6

6.1

5.9

5.2

4.8

4.4

3.9

3.8

3.4

3.3

3.3

-

Minimum

0.4

.3

.2

.2

.2

.2

.3

3.8

3.0

2.9

1.9

.6

.2

July

3.2

3.1

3.1

3.1

3.0

2.9

3.0

3.0

3.4

4.0

3.6

3.8

3.6

3.6

4.4

4.5

3.9

4.2

3.3

3.8

3.8

3.8

5.2

4.8

4.6

5.0

5.6

5.6

5.9

5.8

Aug.

5.4

5.2

5.0

7.2

4.5

4.6

4.4

5.0

5.0

5.4

5.4

5.0

5.4

6.3

5.8

5.0

3.8

3.3

3.1

3.1

3.0

2.4

1.9

2.9

2.3

1.9

3.6

3.4

3.4

3.4

Mean

0.58

.38

.21

1.69

.26

.38

.33

1.19

9.56

3.86

4.03

4.18

1.42

2.22

Sept.

2.8

2.5

3.3

4.0

3.8

3.3

1.9

1.5

1.5

1.8

1.6

1.3

1.2

1.2

1.1

1.0

.9

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

-

Runoff in 

acre-feet

36

23

13

1,220

16

21

20

71

588

230

248

257

84

1,610

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Oct. 10-11, Nov. 15 to Mar. 24 (stage-discharge relation affeeted by 

ice during most of period), Sept. 30: discharge computed on basis of 8 discharge measurements and 

weather records.
94 TRIBUTARIES ABOVE GUNNISON RIVER

Mesa Creek near Me-sa, Colo.

Location.- Water-stage recorder, lat. 39°05', long. 108°07', in SW£ sec. 16, T. 11 S., 

in96 W., an eighth of a mile upstream from unnamed stream and 5^ miles southeast of 

Mesa.-

Records available.- April 1941 to September 1947.

Extremes.- Maximum discharge during year, 35 se^ond-lVet May 10, maximum gage height, 

273TTTeet Dec. 31 (ice Jam); minimum daily discharge, 0.8 second-foot Nov. 16-23.

1941-47: Maximum discharge observed, 140 second-feet May 12, 1941, from rating 

curve extended above 50 second-feet; maximum gage height, that of Dec. 31, 1946; 

minimum daily discharge, 0.6 second-foot Mar. 9, 11-14, 1946.

Remarks.- Records good above 10 second-feet and fair below. Flow partly regulated by 

small reservoirs above station.

Discharge, in second-feet, water year October 1946 to September 1917

Day

1

2

7,

4

5

6

7

R

9

10

11

12

13

14

15

16

17

1R

19

20

?.l

22

23

24

25

26

27

2R

29

30

31

Oct.

8.3

8.6

8.6

9.0

9.5

9.0

9.5

9.0

9.0

9.0

9.5

8.6

8.3

8.3

 8.3

8.3

8.3

8.6

7.9

7.9

7.5

7.5

7.5

7.5

7.2

7.5

7.9

8.3

8.6

7.2

5.0

Nov.

.2

.2

.0

.8

» .4

.0

.0

.5

.5

.4

.4

.4

.4

.3

.9

.8

.8

.8

*.8

.8

.8

.8

.8

1.0

.9

1.1

1.5

2.0

3.1

3.4

-

Dec.

5.0

6.0

6.4

6.4

6.4

6.4

6.8

6.4

*6.4

5.6

5.6

6.0

6.0

6.0

6.0

6.0

5.4

4.5

5.6

6.8

6.0

6.0

6.0

6.0

6.0

6.4

6.4

5.6

4.5

5.1

4.5

Jan.

5.0

aS.O

aS.O

aS.O

aS.O

a5.4

a5.4

a5.4

a5.4

a5.4

a5.6

a5. 6

 5.7

5.7

5.7

5.7

5.7

5.7

5.7

*5.7

5.7

5.7

5.3

5.3

5.3

5.3

5.3

6.0

6.0

5.7

5.7

Feb.

5.7

5.7

*5.7

5.7

5.7

5.7

5.7

5.7

5.7

6.0

5.7

5.3

5.3

5.3

5.3

5.3

5.3

 5.7

5.7

6.0

6.0

6.0

6.0

6.0

6.0

6.4

6.8

6.4

_

_

-

Month

December . ......................... . .....

Calendar year 1946 .....................

March. ........................... .........

April ......... ............................

May........................................

September. ............ . ..................

Water year 1946-47 ............ .........

Mar.

6.0

6.0

*5.7

6.0

6.0

6.0

6.0

6.0

6.0

5.7

6.4

6.8

6.4

6.0

6.0

6.0

6.0

 6.0

6.0

6.0

6.0

6.0

6.4

6.4

6.0

6.0

6.0

5.7

6.0

6.0

6.0

Apr.

6.0

6.0

6.0

6.0

7.2

6.4

5.7

*5.7

6.0

6.8

6.4

8.6

6.8

6.0

6.4

6.4

6.8

7.5

7.2

7.9

9.5

10

8.3

6.8

6.4

7.9

9.0

8.6

10

14

-

Secondfoot-days

255 2

182.2

3,701.8

623

399.3

4,438.2

May

17

21

22

24

27

28

29

29

28

29

29

25

24

24

23

22

21

22

22

22

22

22

21

21

20

19

19

20

19

19

18

Maximum

9 5

6.8

23

20

30

June

18

18

20

24

24

23

23

23

23

23

24

26

25

25

24

23

23

23

23

23

28

30

29

28

27

26

25

24

24

23

-

Minimum

4.5

.6

8.3

.8

July

23

23

22

22

22

22

22

25

26

24

26

27

25

24

25

26

24

24

23

26

26

25

24

23

23

21

21

22

21

23

23

Aug.

23

22

21

22

22

22

22

21

20

20

20

19

18

18

19

20

20

20

19

19

19

19

18

18

18

20

22

22

20

20

20

Me in

5.88

10.1

P2.8

20.1

13.3

12.2

Sept.

18

18

20

19

18

16

14

13

14

14

14

13

14

14

14

13

13

14

14

14

13

13

11

9.

8.

8.

8.

9.

8.

9.

~

Runoff in 

acre-feet

146

361

7,340

1,240

792

8,800

* Winter discharge measurement made on this day.

a No gage-height record (stage-discharge relation affected by Ice during part of period); discharge 

computed on basis of weather records.

Note. - Stage-discharge relation affected by ice jiov. 3, 9-14, 18-20, 24, 26-28, DJC. 1, 10, 11, 

17-20, Dec. 28 to Jan. 1, Feb. 21, 28, Mar. 1, 25.
GUNNISON RIVER BASIN 95

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 1947 in reports of Geological Survey 

September 1937 to September 1938 in files of Bureau of Reclamation.

Extremes.- Maximum contents observed during year, 109,100 acre-feet June 21, 22 (elevation, 9,331,35 feet); minimum, 62,860 acre-feet Oct. 6-8 (elevation, 9,305.65 feet).

J938-47: Maximum contents observed, 109,600 acre-feet (revised) JVne 19, 1942 

(elevation, 9,331.60 feet); minimum, 9,950 a;re-feet (revised) Sept. 20-22 1940 

(elevation, 9,243.55 feet).

Remarks,- Dam completed by Bureau of Reclamation in September 1937. Capacity of reservolr, 106,200 acre-feet between elevations 9,187 feet (bottom of outlet gates) and 

9,330 feet (crest of spillway). No dead storage. Water used for irrigation in 'Jncompahgre Valley. No other reservoirs of any consequence in Gunnison River Basin. 

Figures given herein are of usable contents.

Cooperation.- Records furnished by Uncomcahgre Valley Water Users Association.

Revisions.- Revised figures of contents and change in contents for the water years 1945, 

T&46, superseding those published in water-supply papers indicated, are given herein:

Water-Supply 

Paper

1039.. ........

1059..........

Date

Sept. 30, 1945

Water year 1944-45

Contents 

(acre-feet)

73,120

Change in contents 

Tacre-feet )

-22,280

+32,800 

-14,650

Elevation and contents, water year October 1946 to September 1947

Date

Dec. 31....................

Mar 31

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

Water year 1946-47. ......

Elevation 

(feet)

9,306.65

9,307.95

-

9,328.15

-

Contents 

(acre-feet)

64,430

65,880

66,520

-

66,520

99,030

106,800

102,400

-

Change in contents 

during month 

( acre-feet)

+seo

+1,450

+640

-14,520

0

+1,820

-2,640

+9,670

-1,500

-40O

-4,400

+58,930
96 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 , 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).

Drainage area.- 245 square miles.

Records available.- October 1938 to September 1947. September 1933 to August 1934 (in

 reports oi' (leological 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.- 13 years (1929-33, 1938-47), 170 second-feet.

Extremes.- Maximum discharge during year, 1,270 second-feet June 21 (gage height, 4.48

 i'eet); minimum daily, 26 second-feet (regulated) Feb. 2 to Mar. 6, Mar. 19-30.

1938-47: Maximum discharge, that of June 21, 1947; no flow May 1 to J:ly 3, 1940, 

May 7-22, 1942, May 5-21, 1943. 

Remarks.- Records excellent. Flow regulated by Taylor Park Reservoir (see preceding

 page). One small diversion from Willow Creek above reservoir.

Cooperation.- Gage-height record and two discharge measurements furnished by Uncompahgre 

valley water Users Association.

Rating tables, water year 1946-47 (gage height, In feet,

and discharge. In second-feet)

(Shifting-control method used Oct. 21-31, May 7-12, 

16-31, June 1-5, 25-30, July 1-4, Aug. 1-9)

Nov. 8 to May 31 Nov. 1-7, June 1 to Sept. 30

1.2 31 0.6 17

1.3 42 .8 36

1.5 72 1.0 66

1.7 107 1.2 110

1.9 145 1.7 245

2.0 335

1.3 45 2.1 205

1.4 59 2.6 365

1.6 93 3.5 770

1.8 132

Discharge, in second-feet, water year October 1946 to September 1947

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.

145

145

145

145

137

97

102

82

50

51

51

51

52

52

48

39

46

48

48

48

50

50

50

50

50

51

51

51

51

51

51

Nov.

51

51

51

51

37

43

43

37

37

37

42

42

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

-

Dec.

47

47

47

47

47

47

47

47

47

47

47

47

47

47

47

47

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

Jan.

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

Feb.

34

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

_

-

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May

June ........................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

26

26

26

26

26

26

34

50

50

50

50

50

50

50

50

50

50

42

26

26

26

26

26

26

26

26

26

26

26

26

39

Apr.

Secondfoot-days

2 , 138

1,314

1,502

63,320

1 '736 550

1,083

4,093

1 734

20,'5b6

16,121

5 7 31

6^550

63,108

60

92

110

110

122

184

251

317

317

317

323

323

323

323

197

66

47

47

47

47

47

47

47

47

47

47

47

47

47

47

-

May

47

47

47

47

47

47

49

49

49

49

49

55

84

56

56

58

58

58

58

58

60

SO

60

60

60

61

61

61

61

61

61

Maximum

145

51

50

1,010

50

34

5!)

323

nA O*

1,240

785

283

330

1,240

June

61

61

5359'

75

330

472

745-

995

1,020

950

86O

517

576

661

666

785

895

955

1,110

1,240

1,100

945

795

720

740

770

79O

800

810

-

Minimum

39

37

47

35

50

26

26

47

47

53

277

160

130

26

July

785

770

770

780

775

745

735

710

705

661

607

553

508

476

548

562

526

46S

421

385

369

369

369

354

316

292

277

309

330

323

323

Aug.

283

262

180

160

205

220

205

200

192

195

188

172

175

175

172

170

185

195

211

170

170

172

172

165

162

168

162

165

160

160

160

Sept.

162

155

141

130

141

244

286

280

280

280

280

280

280

283

277

244

214

185

158

158

158

158

153

153

153

162

271

274

2fiO

330

-

Hoar Runoff in 

Mear acre-feet

69.0 4,240

43.8 2,610

48.5 2,980

173 125,600

50.0 3,070

26.3 1,460

34- . 9 2 150

136 3^120

55.9 3,440

685 40,770

52C 31,980

18f 11,370

21F 12,990

17? 125,200
GUNNISON RIVER BASIN

Taylor River at Almont, Colo.

Location.- Water-stage recorder, lat. 38°40', long. 106°51', in sec. 22, T. 51 N., R. 

IE., in Almont, 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 Septe-nber 1947 in 

reports of Geological Survey. July 1910 to September 1947 in reports of State engineer.

Average discharge.- 37 years, 346 second-feet.

Extremes.-, Maximum discharge during year, 1,680 second-feet June 21 (gage height, 3.95 

feet); minimum daily, 55 second-feet Feb. 28.

1910-47: Maximum discharge, 3,760 second-feet June 9, 1920 (gage height, 5.0 

feet), from rating curve extended above 2,300 second-feet; minimum befo-e storage 

began in Taylor Park Reservoir, 50 second-feet on several days in August 1913 (gage 

height, 1.2 feet); minimum daily, 24 second-feet Mar. 12, 1938.

Remarks.- Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. Plow partly regulated by Taylor Park Reservoir (see p.95), 

24 miles above station. Diversions from tributaries above station for irrigation.

Rating table, water year 1946-47, except period of Ice effect 

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

1.2 54 1.9

1.3 68 2.1

1.4 85 2.5

1.5 105 3.1

1.7 155 4.0

220

300

510

930

1,730

Discharge, in second-feet, water year October 1946 to September 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.

213

213

220

816

216

173

173

170

138

128

118

120

122

118

120

110

112

118

108

115

115

 115

118

115

115

112

115

115

122

120

118

Nov.

108

103

101

99

91

83

80

78

76

*75

75

83

87

89

84

78

76

91

91

87

82

91

93

86

78

78

97

101

103

97

-

Dec.

97

93

96

100

*105

93

95

93

85

90

100

107

104

100

100

100

101

98

89

110

103

110

112

103

101

105

110

105

loo

88

82

Jan.

84

38

96

94

93

96

98

105

105

105

102

102

*105

108

110

105

95

96

100

103

104

104

102

100

loo

100

98

96

94

94

95

Feb.

92

80

72

71

71

*71

71

71

66

66

71

67

70

70

66

68

73

64

65

62

62

64

66

68

68

67

60

55

_

_

-

Month

October. ............................. . .

November ......................... .........

December . ..................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. ......................................

April. ............................... .....

Hay........................................

June ................................. .....

July. ...........

Augu 

Sept

St. ....................................

ember. .................................

Water year 1946-47 ......................

Mar.

56

60

62

62

*61

68

88

87

86

92

85

90

90

92

95

101

99

93

83

83

83

87

87

82

82

82

82

82

85

87

93

Apr.

Secondfoot-days

4 301

2, 641 

3,075

96,588

3,077

1,917

2, 565

7,512 

12 527

32,' 333

21,091 

9,223 

8,977

109,239

105

142

*170

161

164

230

290

390

405

405

405

410

415

425

350

230

210

200

190

210

230

230

215

200

180

175

205

190

180

200

-

May

240

290

350

400

440

460

475

488

494

494

488

4OO

370

360

350

345

355

355

365

370

380

4O6

422

380

_395

444

472

494

428

411

40 S

Maximum

220

108

112

1,390

110

92

101

425 

494

1,550

1,060 

400 

411

1,650

June

400

438

450

510

472

661

890

1,250

1,560

1,530

1,430

1,320

1,140

882

930

1,050

1,210

1,310

1,360

1,510

1,650

1,510

1,290

1,110

1,020

1,040

1,100

1,110

1,110

1,090 -

Minimum

10! 

7J

a;

T

B>

51

IDE

24C

39C 

23Z 

212

55

July

1,060

1,030

1,000

1,020

994

946

930

898

890

829

766

710

654

612

696

710

675

619

564

522

499

504

510

488

444

411

390

416

422

444

438

Aug.

400

375

520

272

345

365

350

330

335

315

310

505

292

292

280

272

505

530

550

292

280

280

284

268

256

248

32

40

36

>32

232

Mean

139

88.0 

99.2

265

99.3

68 . 5

82 . 7

250

404

1,078

680 

298 

299

299

Sept.

224

228

220

213

288

370

360

350

355

385

411

385

375

365

360

330

300

280

248

236

232

232

228

228

228

228

288

330

330

370

Runoff in 

acre- feet

8,530

5,240 

6,100

191,600

6,100

3,800

5,090

14,900

64 | 130

41,830 

18,290 

17,810

216,700

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 1 to Mar. 17. No gage-height record Apr. 6 

to May 7j discharge computed on basis of records for station below Taylor Park Reservoir, East River 

at Almont, and Qunnison River near Gunnlson.
GUNNISON RIVER BASIN

Gunnison River near Gunnison, 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 Gunnison,

Drainage area.- 1,010 square miles.

Records available.- October 1910 to November 1914, October 1915 to Decembe" 1928, 

October 1944 to September 1947.

Average discharge.- 20 years, 85*9 second-feet.

Extremes.- Maximum discharge during year, 3,950 second-feet Jane 21 (gage height, 5.07 

feet); minimum daily, 130 second-feet Feb. 9.

1910-14, 1915-28, 1944-47: 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.- Records excellent except those for period of no gage-height record, which are 

fair. Flow partly regulated by Taylor Park Reservoir (see p. 95), 37 miles above 

station. Diversion above station for irrigation.

Rating tables, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control methoi used Oct. 7 to Dec. 3)

Oct. 1 to Mar. 18 Mar. 19 to Sept. 30

1.3 124 1.4

1.5 168 1.7

1.7 225 1.9

2.0 335 2.4

150 2.

230 3.

305 3.

580 5.

Discharge, in second-feet, water year October 1946

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

239

228

246

246

246

246

327

311

288

260

242

236

246

236

256

242

242

246

222

222

236

232

232

239

239

236

236

239

253

260

236

Nov.

222

232

203

225

232

206

210

242

225

213

194

200

232

225

239

194

184

181

184

194

203

194

191

216

189

163

200

191

184

178

-

Dec.

173

178

*173

170

175

175

175

175

170

165

175

175

175

175

170

165

155

150

160

165

160

160

165

165

160

160

165

160

150

140

140

Jan.

145

150

150

150

150

150

*155

160

160

160

160

160

160

160

155

150

145

150

155

155

155

155

155

155

155

155

155

150

155

155

150

Feb.

150

145

140

140

*140

140

140

135

130

135

140

140

140

140

145

150

155

150

145

145

145

160

160

160

160

160

160

160

_

-

Month

October. ...................................

November ......................... .........

December ................................

Calendar year 1946 ......................

January .................................. .

February ............................. .....

March. .....................................

April. ..................................

May. ....................................

June .......................................

July. ............. ........................

August .....................................

September ............. . . ..... ...........

Water year 1946-47 ... .................

Mar.

140

145

155

160

160

*160

170

190

195

190

190

190

190

195

195

190

175

180

*188

182

185

198

198

182

170

178

185

198

215

230

244

Apr.

Secondfoot-days

7,665

6,146

5,119

197,827

4,775

4,110

5,723

16,145

63,970

78,220

48,227

19,661

14,505

274,266

244

305

399

350

320

377

454

550

580

550

544

520

532

580

60S

460

377

460

448

492

678

818

792

768

629

587

744

657

594

728

-

7 800

0 1,080

7 1,920

1 4,000

to September 1947

May

1,100

1,62

2,16

2,58

0

0

0

2,680

2,690

2,78

2,81

2,98

0

0

0

2,760

2,900

2,26

1,87

1,79

0

0

0

1,750

1,690

1,69

1,82

1,82

3

3

D

1,960

1,980

2,07

2,09

1,74

D

D

D

1,690

1,840

1,96

2,03

1,79

1,55

D

D

D

D

1,520

Maximum

327

242

178

3,310

160

160

244

818

2,980

3,860

2,690

809

776

3,860

June

1,470

1,580

1,760

2,100

1,950

1,880

2,230

2,980

3,730

3,520

3,410

3,290

2,660

2,210

2,140

2,270

2,600

2,840

2,870

3,380

3,860

3,480

2,740

2,370

2,280

2,410

2,560

2,570

2,560

2,520

-

Minimum

22!

16

14C

13C

14

13C

14C

24

1.10C

1.47C

75

46

33

13(

July

2,480

2,470

2,540

2,690

2,620

2,480

2,470

2,270

2,140

2,030

1,830

1,640

1,490

1,400

1,530

1,540

1,420

1,280

1,170

1,090

1,030

1,060

1,040

953

90S

800

752

776

776

776

776

Aug.

760

599

571

536

809

752

752

752

736

706

685

706

571

585

594

568

515

599

728

629

615

508

01

556

532

504

t

i

'

182

187

176

182

465

Mean

> 247

5 205

) 165

) 542

5 154

) 147

) 185

t 538

) 2,064

) 2,607

I 1,556

5 634

5 484

) 751

Sept.

438

443

432

410

460

538

544

532

538

629

776

636

594

568

550

520

504

520

482

454

426

399

360

355

345

335

399

432

432

454

Runoff in 

acre- feet

15,200

12,190

10,150

392,400

9,470

8,150

11,350

32,020

126,900

155,100

95,660

39,000

28,770

544,000

* Winter discharge measurement made on this day.

Motp.- No gage-height record Dec. 4 to Mar. 18 (stage-discharge relation probably effected by ice 

during most of period); discharge computed on basis of 3 discharge measurements and weather records.
GUNNISON RIVER BASIN

Gunnison River at lola, Colo.

Location.- Water-stage recorder, lat. 38°29', long. 107°06', in NW£ sec. 2f, T. 49 N., 

R. 2 W., 1,000 feet upstream from highway bridge and 3,000 feet northeaft of Tola. 

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 1947.

Average discharge.- 13 years, 841 second-feet.

Extremes.- Maximum discharge during year, 5,080 second-feet June 21 (gage Ireight, 4.10 

TeeTTT minimum daily, 180 second-feet Feb. 9, 19.

1899-1903, 1938-47: Maximum discharge observed. 6,130 second-feet June 18, 1903 

(gage height, 6.0 feet, site and datum then in use); minimum daily prior to construction of Taylor Park Reservoir, 221 second-feet at times July to October 1902; minimum 

daily, 130 second-feet Feb. 19, 1939.

Remarks. - Records excellent except those for periods of ice effect or no |-age-helght 

record, which are fair. Flow partly regulated by Taylor Park Reservoir (see p. 95). 

Diversions above station for irrigation.

Rating table, water year 1946-47, except period of Ice effect

(gage height, In feet, and discharge, In seconcj-feet)

(Shifting-control method used July 22 to Aug. 14)

0.9 310 2.6 2,160

1.1 440 3.J

1.3 610 » 4.3

1.9 1,220

3,420

5,080

Discharge, in second-feet, water year October 1946 to September 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.

340

328

346

352

352

340

440

456

426

405

398

384

398

391

412

412

405

412

398

391

*398

391

391

391

398

391

3S4

391

412

433

419

Nov.

391

384

352

358

384

358

358

419

405

377

358

330

*310

310

340

350

330

305

305

310

340

330

340

365

330

300

335

340

350

350

-

Dec.

345

*345

340

345

345

335

335

330

315

280

290

305

310

300

295

295

290

265

250

280

270

275

280

270

270

275

280

275

260

250

240

Jan.

240

250

250

245

240

240

*240

255

260

250

250

250

250

245

235

230

230

235

240

240

235

235

235

230

230

225

225

225

225

220

210

Feb.

205

200

*185

190

190

190

190

190

180

185

190

190

190

195

195

200

200

190

180

185

190

205

205

205

205

205

205

205

_

_

-

Month

October .................... ... .......

November. ........................ .........

December . ..................................

Calendar year 1946 ......................

January. ................... ...... . . . .

February ...................................

March. .....................................

April. .....................................

May. ............ ........................

June ........................... ...........

July. .............................. .......

August ..................... .... ..........

September. ..................... ...........

Water year 1946-47 ... ..................

Mar.

195

195

200

205

210

210

215

*240

270

.275

270

270

270

270

270

260

245

265

280

265

280

300

290

280

280

310

330

370

400

410

420

Apr.

1

1

1

Secondfoot-days

12,185

10,414

9,140

254,688

7,370

5,445

8,550

22,250

80,910

97,870

59,030

27,960

21,1.31

362,255

470

540

610

540

*529

520

601

S70

720

700

690

640

630

690

770

680

620

680

700

740

910

,070

,080

,060

930

840

960

910

850

900

-

May

1,190

1,770

2,400

2,970

4,240

3,360

3,460

3,560

3,740

3,560

3,720

3,080

2,520

2,270

2,190

2,190

2,190

2,320

2,260

2,350

2,350

2,480

2,530

2,210

2,120

2,270

2,450

2,620

2,430

2,130

1,980

Maximum

456

419

345

3,780

260

205

420

1,080

4,240

4 , 720

3,020

1,050

1,090

4,720

June

1,940

2,050

2,210

2,660

2,520

2,370

2,750

3,660

4,620

4,530

4,340

4,470

3,660

2,970

2,640

2,710

3,100

3,480

3,560

4,070

4,720

4,660

3,620

2,980

2,750

2,820

3,020

3,040

3,000

2,950

Minimum

32£

30C

24C

20C

21C

18C

19E

47C

1,19C

1.94C

1.04C

72C

52£

18C

July

2,860

2,800

2,800

3,020

3,000

2,840

2,860

2,710

2,680

2,450

2,210

1,980

1,810

1,710

1,770

1,840

1,780

1,640

1,500

1,420

1,380

1,420

1,440

1,350

1,240

1,160

1,110

1,090

1,080

1,040

1,040

Aug.

1,020

920

380

BIO

1,020

990

970

370

360

940

920

350

330

360

880

840

i.t

390

390

350

970

950

i

350

J60

)90

860

790

-

50

40

20

50

740

Mean

393

347

) 295

698

238

194

276

742

2,610

3,262

1,904

902

704

992

Sept.

680

670

660

640

650

750

780

750

750

910

1,090

960

890

830

790

730

700

730

710

680

660

610

565

556

538

529

547

592

58c

601

-

Runoff in 

acre-feet

24,170

20,660

18,130

505,200

14,620

10 , 800

16,960

44,130

160,500

194,100

117,100

55,460

41,910

718,500

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 12 to Dec. 31. No gage-heig!"t record Jan. 1 

to Apr. 4 (stage-discharge relation probably affected by Ice during most of period); discharge computed on basis of 3 discharge measurements and weather records.
GUNNISON RIVER BASIN

Gunnison River below Gunnison tunnel, Colo.

Location.- Water-stage recorder, lat. 38°32', long. 107°39', in NW£ sec. 10, T. 49 N., 

K. v w., a quarter of a mile downstream from Gunnison tunnel and 12 miles northeast of 

Montrose. Datum of gage is 6,527.06 feet above mean sea level, datum of 1929.

Drainage area.- 3,980 square miles.

Records available.- January 1943 to September 1947. April 1905 to September 1911 at site 

above East portal. Records since Jan. 20, 1943, equivalent to earlier records if flow 

through Gunnison tunnel is added to flow past station.

Extremes.- Maximum discharge during year, 8,690 second-feet June 10 (gage height, 9.03 

reet); minimum daily, 40 second-feet Oct. 1, 2.

1905-11, 1943-47: Maximum discharge recorded, 15,000 second-feet (discharge measurement) June 14, 1906; minimum daily prior to construction of Gunnison tunnel not determined; minimum daily, 5 second-feet on several days in September and October 1944.

Remarks.- Records excellent except those for period of ice effect, which are fair. Record of diversion through Gunnison tunnel during water year 1947 is published below:

Month

October 

November 

March 

April 

May

Runoff in 

acre-feet

24,740 

13,960 

11,310 

46,410 

52,510

Month

June 

July 

August 

September

Runoff in 

acre- feet

31,170 

54,900 

52,680 

44,520

Cooperation.- Record of diversion through Gunnison tunnel furnished by Uncompahgre Valley 

water users Association.

Discharge, in second-feet, water year October 1946 to September 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.

40

40

82

82

87

79

197

260

225

181

142

100

121

127

121

139

166

208

218

236

250

288

288

288

288

284

284

288

328

*385

349

Nov.

256

154

124

97

145

148

127

211

228

178

220

230

255

295

305

315

270

250

250

270

320

300

330

340

310

345

420

470

*470

450

-

Dec.

430

410

410

410

410

410

400

390

380

360

380

390

380

370

370

370

350

340

310

330

320

*315

330

330

340

350

380

360

340

330

320

Jan.

330

350

350

350

350

350

350

350

350

350

350

350

350

340

320

310

320

320

330

330

330

330

330

330

330

330

340

350

*360

360

350

Feb.

340

330

330

340

350

350

360

360

340

330

360

350

340

350

340

360

360

370

360

350

340

34O

360

370

370

*370

370

360

-

-

-

Month

December ...................................

Calendar year 1946 ........I..............

March. .....................................

May.......... ...............................

July. ......................................

September ...............................

Water year 1946-47 ......................

Mar.

340

350

360

360

360

360

295 '175

315

420

*420

410

390

380

320

120

125

165

215

205

235

270

260

260

220

286

278

330

402

370

525

Apr.

346

402

475

354

160

64

102

128

216

198

181

118

102

188

422

490

386

530

535

565

,030

,450

,500

,400

,020

796

1,040

1,140

898

1,000

-

Secondfoot days

11,315

278,231

10,540

9,850

131,420

78,262

12,613

483,991

May

1,950

3,040

4,490

5,620

5,890

6,080

5,830

5,600

5,880

a5,680

a5,730

a5, 340

a4,180

a3,480

a3,190

a3,090

a3,140

83,340

3,300

3,530

3,900

4,520

4,520

3,760

3,340

3,770

4,060

4,500

3,970

3,400

3,300

Maximum

385

430

6,530

360

370

525

3,080

5,250

1,210

8,240

June

' 3,2OO

3,600

4,180

4,670

4,480

4,120

4,370

6,940

8,240

8,210

7,330

7,140

6,300

4,880

4,280

4,700

5,560

6,210

5,760

6,300

8,000

8,190

6,430

4,480

4,710

5,070

5,430

5,580

5,580

5,480

-

Minimum

310

23

310

330

120

1,950

525

59

40

July

5,250

4,890

. ,640

,880

,770

,340

. ,590

,400

. ,100

,810

,320

,860

,470

,150

,330

,400

,150

,890

,610

,430

,25O

,320

,330

,160

970

832

730

645

640

580

525

Aug.

545

450

390

346

742

682

575

635

560

655

706

730

688

712

545

442

530

844

904

850

7OO

778

934

868

650

550

462

454

438

650

545

Mean

1 99

365

762

340

352

307

f75

4,239

5, £47

2,525 eii

4.20

1,326

Sept.

458

422

418

338

174

262

326

258

250

570

1,210

1,030

844

712

610

535

462

49O

530

535

475

402

330

274

238

167

59

80

66

88

-

Runoff in 

acre- feet

22,440

551,800

20,910

19,540

18,880

34,190

260,700

336,000

155,200

38,800

25,O20

960,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station at lola and 

diversion through Gunnison Tunnel.

Note.- Stage-discharge relation affected by Ice Nov. 11 to Mar. 25.
GUNNISON RIVER BASIN 

Gunnison River near Grand Junction, Colo.

101

Location.- Water-stage recorders on river and canal, lat: 39°02', long. 108a 34', in NW-J 

sec. 35, T. 1 S., 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 

September i«99 (at site near mouth), October 1901 to September 1906 (at site at 

Whitewater), October 1916 to'September 1947 (at present site).

Average discharge (river and power canal).- 39 years (1896-99, 1901-6, 1916-47), 2,761 

secona-reet.

Extremes (combined flow of river and power canal).- Maximum discharge, 13,900 second-feet 

June 22; minimum daily, tjav second-feet Apr. a.

1917-30, 1933-47: 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 

daily, 106 second-feet July 20, 1934.

Remarks.- Records excellent except those for Jan. 1 to Feb. 19, 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 Gunnison River Basin. Records include flow of power 

canal. Records of water analyses for the water year 1947 are given in Water-Supply 

Paper 1102.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

6

4

S>

6

7

8

9

10

11

1213

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

797

799

739

755

1,000

1,050

1,030

1,110

1.30O

1,280

1,250

1,250

1,230

1,200

1,190

1,190

1,230

1,260

1,230

1,220

1,160

1,150

1,130

1,120

1,120

1,140

1,130

1,1OO

1,130

1,180

1,330

Nov.

1,270

1,200

1,170

1,130

1,O50

1,040

1,110

1,070

1,220

1,240

1,160

1,070

1,030

1,090

1,220

1,240

1,170

1,030

983

l.OOO

1,050

1,160

1,170

1,180

1,280

1,170

1,010

1,050

1,100

1,100

-

Dec.

1,010

l.OOO

999 *963

933

974

1.09O

1,100

1,030

936

819

733

832

977

975

958

931

829

721

737

811

845

823

796

860

919

961

997

931

829

782

Jan.

720

780

78O

740

7OO

78O

76O

740

820

740

76O

BOO

780

74O

700

7OO

720

780

700

660

7OO

*697

70O

74O

7OO

720

760

770

720

70O

750

Feb.

700

700

750

76O

800

8OO

83O

84O

84O

900

940

99O

*938

950

960

l.OOO

1,020

98O

87O

837

833

789

766

763

781

771

754

805

_

-

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

Bay. .......................................

July. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

789

746

730

738

730

*750

754

762

642

754

843

813

805

766

770

809

706

779

944

1.O80

1,140

1,230

1,310

1,420

1,180

967

877

868

958

1,090

1,160

Apr.

1,280

1,160

1,150

1,280

1,160

913

770

637

695

779

848

740

747

649

686

1,10O

1,420

1,410

1,740

1,710

2,050

2,990

3,500

3,410

3,090

2,410

2,200

2,670

2,740

2,380

Seoondfoot-days

28,101

636,433

122 150

48,127

932,359

May

2,790

4,910

7,690

9,630

9,450

9,650

10,400

1O,700

10,700

11,400

11,400

10,200

8,150

6,880

6,300

6,230

5,880

5,770

5,920

6,060

6,420

6,940

7,370

6,94o

5,590

5,560

6,220

6,660

6,980

5,650

4,80O

Maximum

1,100

8,940

82

3 500

2,980

13,500

June

4,840

4,840

5,610

7,630

7,840

6,780

6,520

8,320

10,400

11,200

10,400

10,800

9,860

8,300

7,140

6,990

7,600

8,440

8,530

8,000

9,920

13,500

11,900

9,420

8,210

7,940

8,300

8,280

8.11O

7,840

Minimum

721

561

939

637

July

7,46O

6,840

6,420

6,4£0

6,680

6,170

6,010

6,2fO

5,900

5,580

5,040

4,360

3,830

3,320

3,140

4,120

3,780

3,260

2,910

2,570

2.37O

2,130

2,300

2,370

2,030

1,700

1,600

1,690

1,860

1,930

2,040

Aug.

2,200

2,310

2,37O

2,460

2,140

1,950

1,690

1,550

1,600

1,680

2,320

2,000

1,960

2,180

2,090

1.8OO

1,620

1.76O

2,1OO

1.94O

1.84O

1,890

2,310

2,460

2,250

1,970

1,790

1,600

1,410

1,490

1,840

Ifean

906

1,744

1 954

1,604

2,554

Sept.

1,680

1,520

1,380

1,310

1,190

1.O90

1,370

1,350

1.28O

1,720

2,600

2,980

2,620

2,380

2,200

2.O4O

1.9OO

1,760

1,740

1.80O

1,720

1,590

1,450

1,310

1,180

1,070

1.O20

963

939

975

Runoff in 

acre-feet

55,740

1,262,000

95 830

454 700

501 ' 5OO

242 300

95,460

1,849,000

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Jan. 1 to Feb. 19.
102 ' GUNNISON.RIVER .BASIN

East River near Crested Butte, Colo.

Location.- Water-stage recorder, lat. 38°52', long. 106°54', in NE£ sec. E, T. 14 S., R.

 85 W., at highway bridge, 1.2 miles downstream from Brush Creek and 4j miles east of

Crested Butte.

Drainage area.- 89.2 square miles. 

Records available.- April 1941 to September 1947 (no winter records in 1942). (April

to November 1940 for station 1 mile downstream in files of Bureau of Reclamation.) 

Extremes.- Maximum discharge during year, 926 second-feet June 20 (gage hei^it, 2.62 feet);

minimum daily, 17 second-feet Jan. 21-24, Jan. 30 to Feb. 4.

1941-47: Maximum discharge, 1,060 second-feet June 27, 1944 (gage height, 2.72

feet), from rating curve extended above 700 second-feet; minimum daily, 13 second-feet

Mar. 5-7, Mar. 17 to Apr! 2, 1944. 

Remarks.- Records excellent except those for periods of ice effect or no gage-height

 record, which are fair. Several small diversions above station for irrigation.

Rating table, water year 1946-47, except period of Ice effect 

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

0.1 22 0.8 92

.2 28 1.0 126

.4 46 1.3 195

.6 66 1.5 26O

1.7 350

2.3 700

2.7 990

Discharge, in second-feet, water year October 1946 to September 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.

32

36

47

42

42

40

48

42

48

50

39

39

42

38

40

39

43

41

35

37

38

35

37

36

34

33

33

34

41

37

34

Nov.

27

27

30

36

28

26

31

*30

31

32

b30

29

30

32

34

33

31

30

30

31

32

32

33

33

31

29

31

31

30

29

-

Dec.

29

29

29

2B

*29

29

29

28

26

26

27

28

28

28

2B

27

25

24

24

24

24

24

25

25

26

26

26

26

25

24

28

Jan.

21

20

20

20

20

20

20

20

20

20

19

19

19

18

18

18

18

18

18

18

17

17

17

17

18

18

18

18

18

17

17

Feb.

17

17

17

 17

18

18

18

18

18

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

-

-

-

Month

October ..........................

November ...................................

December ...................................

Calendar year 1946 ......................

January ...............................

February ...................................

March. .......................... . . . .

April. .....................................

May........................................

June .................................

July. ......................................

August .....................................

Septembe r . . . ..............................

Water year 1946-47 ... . . ...............

Mar.

19

19

19

19

*19

19

20

20

20

20

19

19

20

20

20

21

23

25

27

29

31

33

34

30

28

27

27

29

31

34

36

Apr.

Secondfoot-days

1,212

919

818

41,861

576

519

757

1 1 898

13,425

16,742

12,002

2^364

54,864

35

35

38

40

38

35

36

35

36

36

35

34

34

35

37

*38

36

38

41

59

106

130

119

121

102

112

112

100

105

14O

-

May

204

305

454

556

580

580

604

652

634

574

514

380

325

315

315

292

315

350

350

400

448

490

442

360

412

502

496

496

390

340

350

Maximum

50

36

29

793

21

19

36

140

652

784

682

188

113

784

June

380

484

532

574

454

448

604

784

763

628

616

496

448

375

385

484

592

616

622

735

742

574

436

424

484

568

604

616

628

646

-

Minimum

32

26

22

17

17

17

19

34

204

375

182

60

17

July

670

652

634

68?

611

622

563

514

523

503

449

412

385

380

460

375

325

305

283

263

253

253

222

216

207

207

193

192

201

18?

18?

Aug.

170

160

146

163

188

153

138

128

126

124

119

121

112

115

102

100

108

122

122

103

103

113

110

98

94

89

84

79

78

86

78

Sept.

76

73

72

70

79

74

78

72

78

112

113

89

88

85

78

74

88

106

loo

88

79

73

70

68

66

64

63

60

60

68

-

.. Runoff in * *° acre-feet

39.1 2,400

30.6 1,820

26.4 1,620

115 83,020

18.6 1,140

18.5 1,030

24 . 4 1 , 500

63.3 3,760

433 26,630

558 33,210

387 23,810

117 7,200

78.8 4,690

ISO 1O8,8OO

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 12 to Apr. 15 (stage-discharge relation probably affected by Ice 

during most of period); discharge computed on basis of 3 discharge measurements and weather records.
GDNNISON RIVER BASIN 103

East River at Almont, Colo.

Location.- Water-stage recorder, lat. 38°40', long. 106°51', in sec. 22, T. 51 N , R 1« 

E., at Almont, 400 feet upstream from mouth. Datum of gage is 8,008.29 feet above 

mean sea level, datum af 1929.

Drainage area.- 295 square miles.

Records available.- April to October 1905, July 1910 to 4pril 1322, October 1934 to 

September j.y<i/7

Average discharge.- 20 years (1910-13, 1916-20, 1934-47), 350 second-feet.

Extremes.- Maximum discharge during year, 2,100 second-feet May 9 (gage height 4 22 

feet); minimum daily, 43 second-feet Jan. 31.

1905, 1910-22, 1934-47: 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, 19 second-feet, Aug. 13, 1913.

Remarks.- Records excellent above 200 second-feet and good below except for period of 

ice effect, which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

a

9

10

11

1?.

13

14

15

16

17

18

19

20

21

22

23

24

2b

26

27

28

29

30

31

Oct.

70

68

77

74

73

73

94

94

103

108

106

104

112

118

143

141

143

143

124

130

137

132

128

128

124

124

J.24

124

135

139

132

Nov.

114

110

92

99

97

85

87

104

97

90

77

87

95

92

99

79

80

84

84

84

85

82

80

92

77

70

95

88

84

80

-

Dec.

80

85

73

*82

87

84

84

79

67

76

78

80

74

72

72

70

67

58

58

70

68

70

72

68

68

68

67

66

55

52

50

Jan.

52

54

56

54

52

54

56

56

56

54

54

55

*55

55

52

50

50

50

48

47

47

47

47

48

49

49

49

48

47

44

43

Feb.

45

47

50

*48

48

50

50

48

49

50

51

51

53

53

54

54

55

56

58

60

63

71

64

67

64

64

61

56

_

_

-

Month

October. ................................

Decembe r ..................................

Calendar year 1946 ......................

April ......................................

May.......................................

July.. ................. ...................

September. ............. ......... ..... ...

Water year 1946-47 .... .................

Mar.

54

55

54

54

*55

55

55

58

56

55

59

56

52

58

58

54

58

58

63

60

60

67

71

66

64

66

67

71

76

79

80

Apr.

79

92

95

87

82

79

84

79

85

80

80

71

70

90

114

128

135

168

166

205

313

410

395

376

305

302

350

302

280

376

-

Secondfoot-days

3,525

2,200

98,010

4,460

136,477

May

618

1,000

1,370

1,610

1,660

1,670

1,700

1,740

1,880

1,730

1,760

1,330

1,120

1,060

1,060

979

1,010

1,130

1,120

1,230

1,260

1,350

1,330

1,420

1,430

1,210

1,290

1,310

1,090

937

930

Maximum

143

87

1,780

1 930

395

256

1,930

June

902

1,010

1,130

1,300

1,110

1,040

1,230

1,650

1,930

1,620

1,600

1,450

1,190

1,040

1,000

1,090

1,300

1,380

1,370

1,710

1,920

1,610

1,210

1,060

1,090

1,250

1,350

1,370

1,370

1,370

-

Minimum

50

48

45

345

88

43

July

1,330

1,330

1,350

1,420

1,310

1,3?0

1,210

1,090

1,070

1,010

937

830

776

755 8-30

776

672

630

599

572

5?8

534

490

455

440

415

391

3S8

3S8

330

3i5

Aug.

345

325

298

317

395

345

354

341

325

313

294

305

288

280

249

242

260

302

298

263

256

263

260

232

217

208

196

185

176

185

179

Mean

114

71.0

269

1 32?

149

374

Sept.

163

166

158

153

153

150

153

146

146

211

256

190

176

166

158

148

153

196

185

173

155

124

106

103

101

99

97

95

92

88

-

Runoff in 

acre-feet

4,360

194,400

8,850

270,700

* Winter discharge measurement made on this day.

Note^- Stage-discharge relation affeeted by Ice Dec. 11-16, 18-26, Dec. 30 to Fjb. 2O.

852060 O - 49 - 8
104 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., half 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 1947. (April to November 1940 in files of 

bureau or Reclamation.)

Extremes.- Maximum discharge during year, 1,040 second-feet June 9 (gage height, 3.85 

feet); minimum daily, 7.6 second-feet Jan. 15, 16, 21-23.

1941-47: Maximum discharge observed, 1,240 second-feet May 13, 1941 (gage height, 

3.98 feet); minimum daily, 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.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

' 78

9

10

1112

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12

12

22

22

19

19

26

24

26

*31

21

21

24

20

22

21

25

25

20

21

25

24

26

29

25

25

25

25

37

32

31

Nov.

22

24

25

26

20

20

19

*21

20

19

17

16

16

17

17

17

17

18

18

19

19

20

19

16

16

15

17

18

18

17

-

Dec.

17

16

15

15

*15

14

14

15

15

14

13

13

14

14

14

14

13

13

12

11

11

11

11

12

12

12

12

11

11

11

11

Jan.

11

10

9.6

9.4

9.2

9.0

9.0

8.8

*8.5

8.5

8.3

8.2

8.0

7.8

7.6

7.6

7.8

7.8

7.8

7.8

7.6

7.6

7.6

7.8

8.0

8.2

8.2

8.0

8.0

8.0

8.0

Feb.

8.0

8.0

8.0

*8.0

8.0

8.0

8.2

8.6

8.8

8.8

9.0

9.0

8.8

8.8

8.8

8.8

9.0

9.2

9.4

9.4

9.6

9.6

9.6

9.6

10

10

10

10

-

_

-

Month

October ....................................

November ......................... .........

Decembe r ...................................

Calendar year 1946 ............... ......

January .................................. .

February. ........................... ...

March. .....................................

April .......... ...........................

May. .......................................

June .......................................

July.. .................................. ..

August. ....................... .........

September ...............................

Water year 1946-47 ......................

Mar.

10

10

10

10 *11

111111

1111

1111

11

12

12

12

12

13

14

16

17

18

19

19

18

18

20

22

24

28

31

Apr.

29

30

32

35

33

31

29

29

33

31

30

29

32

36

41

*50

56

69

92

98

146

176

182

156

126

128

137

124

124

176

-

Secondfoot-days

737

563

406

45,230.2

258.7

251.0

4fi4

2,320

18,794

17,837

9,080

2,080

1,128

53,918.7

May

275

450

664

820

820

804

820

852

876

836

780

515

410

383

378

365

428

505

535

594

670

740

677

535

588

698

712

698

515

437

414

Maximum

37

26

17

970

11

10

31

182

876

990

577

124

86

990

June

437

510

572

658

530

510

652

876

990

780

756

572

460

414

410

460

560

599

594

764

954

705

475

396

406

495

566

582

582

572

-

Minimum

12

15

11

8.6

7.6

8.0

10

29

275

396

111

37

21

7.6

July

555

540

572

577

540

525

455

378

410

396

341

308

281

272

287

260

224

218

203

188

173

170

156

153

146

137

135

128

126

115

111

Aug.

Ill

102

94

113

124

94

90

82

78

76

76 80

69

61

54

52

58

61

59

52

52

56

56

47

45

42

40

39

37

43

37

Me-m

23.8

18.8

13.1

124

8.35

8.96

15.0

77.3

606

595

293

67.1

37.6

148

Sept.

34

32

31

28

28

31

35

29

35

86

84

56

50

45

40

37

49

50

47

40

29

32

29

28

26

25

24

21

21

26

-

Runoff in 

acre-feet

1,460

1,120

805

89,700

513

498

920

4,600

37,280

35,380

18,010

4,130

2,240

107,000

winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 3, 4, 6, 7, 10-19, Nov. 25 to Dec. 4, Dec. 8, 

9-No gage-height record Dec. 10 to Apr. 15 (stage-discharge relation probably affected by ice 

during most of period) ; discharge computed on basis of 3 discharge measurements and weather records.
GUNNISON RIVER BASIN 

Cement Creek near Crested Butte, Colo.

105

Location^- Water-stage recorder, lat. 38 0 50', long. 106°50', In sec. 13, T. 14 S., R. 85 

W., near Pioneer Resort, l£ 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 1947. (April 

to September 1940 In files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 269 second-feet June 8 (gage height, 2.95 feet), 

from Fating curve extended above 180 second-feet; minimum dally, 8.3 second-feet Mar. 3-6.

1910-13, 1941-47: Maximum discharge observed, 330 second-feet June 7, 1912 (gage 

height, 1.9 feet, site and datum then in use), from rating curve extended above 270 

second-feet; minimum observed, 6 second-feet at times in January and Fsbruary 1913.

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 1946 to September 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.

14

15

16

15

15

14

16

16

18

17

14

14

14

13

14

14

14

13

13

14

14

14

14

14

14

14

14

14

15

14

15

Nov.

13

13

16

19

15

15

15

 13

13

b!3

b!3

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

13

12

12

12

-

Dec.

12

12

12

12

 12

12

12

11

11

11

11

11

11

11

11

10

10

9.5

9.2

9.4

10

10

10

10

10

10

10

10

9.5

9.0

9.0

Jan.

9.2

9.4

9.6

9.6

10

10

10

10

*10

10

10

10

10

9.6

9.4

9.4

9.8

10

10

10

10

10

10

10

10

10

10

10

10

10

10

Feb.

11

11

11 11

11

11

11

11

11

10

11

11

11

10

10

10

9.6

9.4

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.0

8.8

-

_

-

Month

October. ...................................

November . ........................ ..........

December ...................................

Cslendar year 1946 ............... ......

January. ................................. .

February ..................................

March. ..................... ...............

April .......... ...........................

May. ......................................

June ....................... ...............

July.. ............ ........................

August ..................... ...............

September. . . ..............................

Water year 194R-47 .......... ...........

Mar.

8.8

8.5

8.3

8.3

 8.3

8.3

8.5

8.8

9.0

9.0

9.0

9.0

9.1

9.3

9.5

9.8

10

10

10

10

11

11

11

11

11

10

10

10

11

11

11

Apr.

11

11

11

11

10

10

10

10

10

10

10

10

10

10-

11

*n'12

14

14

18

23

25

23

22

18

21

23

20

22

32

-

Secondfoot-days

449

399

327.6

9 729 9

3O6.O

282.4

453'

3,287

4 594

2, 198

964

658

14,217.5

May

45

60

71

90

115

120

123

130

138

125

110

102

98

89

89

85

83

85

92

96

108

126

120

106

116

136

140

147

120

110

112

Maximum

18

19

12

139

10

11

11

32

147

213

132

40

31

213

June

120

145

149

149

128

136

172

213

213

187

177

163

138

128

128

149

163

163

165

177

175

154

132

128

134

145

147

140

140

136

-

Minimum

13

12

9.C

T.t

9.2

8.£

8.:

10

45

120

39

23

18

8.2

July

132

124

122

116

106

96

92

89

83

78

75

71

68

68

74

68

63

59

56

53

54

59

52

49

45

44

42

41

40

40

39

Aug.

36

36

35

40

40

35

34

34

33

33

33

33

32

30

30

30

34

35

32

30

29

30

28

27

26

26

25

25

25

25

23

Mean

14.5

13.3

) 10.6

26.7

9.87

10.1

9.66

15.1

106

153

70.9

31.1

21.9

39.0

Sept.

23

24

23

22

22

23

23

22

25

31

28

25

23

22

22

21

23

22

21

20

20

20

20

19

19

19

19

18

19

20

-

Runoff in 

acre- feet

891

791

650

19,300

607

560

594

899

6,520

9,110

4,360

1,910

1,310

28,200

* Winter discharge measurement made on this day.

b Stage-'li^charge relation affected by ice.

Note.- No gage-height record Nov. 12 to Apr. 15 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 4 discharge measurements and weather records. No 

gage-height record May 4-13; discharge computed on basis of records for stations on nearby streams.
106 GUNNISON RIVER BASIN

Ohio Creek near Baldwin, Colo.

Location.- Water-stage recorder, lat. 38°42', long. 107°00', in SW£ sec. 34, T. 15 S., R. 

Be W., 800 feet downstream from Mill Creek and 5| miles southeast of Baldwin.

Drainage area..- 124 square miles.

Records available.- April 1941 to September 1947. (April to November 1940 in files of 

Bureau or Keclamation.)

Extremes.- Maximum discharge during year, 948 second-feet May 8 (gage height, 3.92 feet), 

from rating curve extended above 700 second-feet; minimum daily, 10 second-feet Jan. 

17-26.

1941-47: Maximum discharge, 1,040 second-feet May 17, 1944 (gage height, 4.21 feet), 

from rating curve extended above 700 second-feet; minimum daily, 10 second-feet Dec. 31, 

1944, Jan. 3, 1945, Jan. 17-26, 1947.

Remarks.- Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. Many small diversions above station for irrigation.

Rating table, water year 1946-47, except periods of Ice effect

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

(Shifting-control method used July 31 to Aug. 13)

0.6 

.7

.9 

1.0 46 3.4

148

195

350

740

Discharge, in aecond-feet, water year October 1946 to September 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.

14

14

21

18

18

18

27

23

25

23

20

21

20

18

20

19

21

21

18

21

21

20

18

20

19

18

19

20

24

24

21

Nov.

18

18

20

22

20

*20

19

20

19

19

18

18

19

21

19

18

19

20

21

21

19

18

18

19

20

20

19

20

21

20

-

Dec.

20

20

20

20

20

22

*22

21

19

16

16

18

18

18

18

17

17

16

15

15

14

14

14

15

15

15

16

16

15

14

15

Jan.

15

14

13

13

13

13

13

12

12

12

12

12

*12

11

11

11

10

10

10

10

10

10

10

10

10

10

1111

1111

11

Feb.

11

11

11

11

11

11

11

12

12

12

12

12

12

12

12

12

12

12

12

13

13

13

13

13

13

14

14

14

_

-

Month

October. ................................. .

November. ...................... . .

December ........ ..........................

Calendar year 1946 ............. . . .

January ............................ ....

February. .......................... . .....

March. ............................. .....

April. ............................... .....

May............. ...................... ...

June .... ........... ... .......... .... .

July. ................................ . ...

August ............... .......... . . .... .

September. ........... . . ...... . .

Water year 1946-47 ... .......

* Winter discharge measurement made on thi

Mar.

13

13

13

13

14

*15

15

15

15

15

15

16

16

16

16

16

16

17

20

24

24

27

28

28

28

27

28

32

35

40

42

Apr.

40

42

45

47

44

40

40

39

42

40

38

36

42

88

159

95

106

120

114

136

172

182

155

138

112

114

140

120

122

188

-

Secondfoot-days

624

583

531

23,794

354

341

652

2,796

14,238

9,573

5,096

2,190

1,535

38,513

a day.

May

276

364

462

564

609

679

740

736

724

640

637

462

378

382

378

343

354

385

406

448

455

480

462

374

371

402

416

413

340

282

276

Maximum

27

22

22

368

15

14

42

188

736

486

315

97

116

736

June

267

282

294

374

297

285

343

438

486

402

396

357

279

252

237

264

300

309

294

396

480

396

279

240

240

270

291

282

273

270

-

Minimum

14

18

14

12

10

11

13

36

276

237

74

52

31

10

July

264

252

273

315

276

243

249

234

231

204

182

163

152

144

152

155

138

130

124

120

116

134

138

118

103

90

84

82

80

74

76

Aug.

82

72

70

81

92

68

68

62

53

54

69

78

97

95

70

64

80

87

78

70

70

86

74

66

62

57

56

60

54

63

52

Mean

20.1

19.4

17.1

65.2

11.4

12.2

21.0

93.2

459

319

164

70.6

51.2

106

Sept.

46

45

44

41

40

44

47

41

47

101

116

80

69

62

56

50

56

63

59

54

49

44

41

39

38

35

33

32

32

31

-

Runoff in 

acre-feet

1,240

1,160

1,050

47,200

702

676

1,290

5,550

28,240

18,990

10,110

4,340

3,040

76,390

Note.- Stage-discharge relation affected by Ice Nov. 3-30, Mar. 29 to Apr. 9. 

record Dec. 1 to Mar. 19 (stage-discharge relation probably affected by Ice during most of period); 

discharge computed on basis of 3 discharge measurements and weather records.
GUNNISON RIVER BASIN 107 

Ohio Creek near Gunnison, Cole.

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 1947.

Extremes.- 1944-45: Maximum discharge during year, 498 second-feet (revised) May 14 (gage

 height, 4.98 feet); minimum daily, 14 second-feet Feb. 8.

1946-47: Maximum discharge during year, 748 second-feet May 8 (gage height, 5.62 

feet); minimum daily, 12 second-feet Jan. 16.

1944-47: Maximum discharge, that of May 8, 1947; minimum daily, flat of Jan. 16, 

1947.

Revisions.- The maximum discharge for water year 1946 has been revised to 404 

second-feet June 17 (gage height, 4.71 feet), superseding figure published in WaterSupply Paper 1059.

Remarks.- Records excellent except those for May 15 to June 30, which ar^ good, and those 

ror Oct. 15 to Apr. 2, which are fair. Diversions above station for irrigation.

Revisions.- Revised figures of discharge for high-water periods in the water year 1945 

are given herein. They supersede those published in Water-Supply Pap-er 1039.

Discharge, in second-feet, 1944-45, 1946-4? 

1944-45

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

Oot.

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

20

21

19

19

18

19

19

19

20

20

19

20

21

21

21

21

Nov.

23

25

23

22

22

27

37

40

37

34

32

33

*34

31

28

26

27

27

27

26

25

25

26

27

26

24

24

23

23

23

-

Dec.

23

23

23

22

22

22

22

23

22

21

20

20

21

22

22

22

21

21

22

22

22

21

22

22

21

20

19

20

22

19

18

Jan.

19

20

18

17

17

17

18

19

18

17

17

*17

17

17

17

17

17

17

17

16

16

16

16

17

17

17

17

17

16

16

17

Feb.

19

21

22

21

18

1?

16

14

*15

15

16

17

18

22

21

20

20

21

22

22

22

21

23

23

23

23

23

25

_

_

-

Mar.

2?

29

28

29

31

34

36

35

37

*39

40

41

42

43

43

41

40

40

39

38

39

40

39

38

38

39

38

37

37

38

41

Apr.

43

49

46

39

41

43

46

49

49

48

45

43

35

40

36

35

40

46

65

108

118

123

130

99

76

73

78

92

94

120

-

May

158

212

248

295

323

337

354

372

340

382

446

435

438

463

414

337

306

351

326

312

278

245

236

260

298

320

368

351

320

309

288

June

242

209

212

203

185

200

206

209

194

182

173

163

218

295

330

292

257

239

242

254

264

309

312

288

312

278

242

212

185

163

-

July

169

169

164

164

169

164

147

139

147

2OO

179

154

149

152

142

130

103

94

92

108

108

115

111

156

184

306

214

187

159

182

224

Aug.

302

224

184

228

224

228

195

179

154

152

125

125

182

144

123

108

94

87

92

108

113

85

73

71

83

73

92

94

73

67

64

Sept.

58

57

54

50

47

46

42

41

38

37

36

35

35

33

31

35

46

36

35

35

34

33

31

32

31

30

30

29

29

33

-

* Winter discharge measurement made on this day

Note.- Stage-discharge relation affected by ice Nov. 15 to Dec. 15. No gage -h-: ight record Nov.

3-12, Dec. 16 to <\pr. 11 (stage-discharge relation affected by ice during most of period); dis-
108 GUMISON RIVER BASIN

Discharge, in second-feet, of Ohio Creek near (Junnlson, Colo., 1944-45, 1945-47 Continued

1946-47

Day

1

2

3

4

5

6

7

8

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

26

29

29

29

30

52

39

39

35

29

27

29

27

27

27

27

27

25

25

26

26

25

25

25

25

26

26

28

30

29

NOV.

26

26

24

28

28

24

25

31

30

26

24

26

30

30

32

« 27

26

26

27

28

29

27

28

31

28

24

29

29

27

26

-

Dec.

25

26

25

25

27

27

*27

25

23

22

22

24

24

24

24

24

22

E2

20

22

20

20

21

21

21

22

22

20

19

17

16

Jan.

16

16

17

15

15

15

15

15

15

15

15

14

14

*13

13

12'

13

13

13

13

13

13

13

13

13

13

14

14

14

14

14

Feb.

14

14

*14

14

14

14

14

14

15

16

16

16

17

15

17

17

18

18

18

19

19

20

20

20

21

21

21

21

_

-

-

Mar.

20

22

22

22

22

*25

22

22

22

22

22

22

22

23

22

22

24

25

26

29

34

39

 36

31

a31

a 31

a33

a40

a 50

a60

a 56

Apr.

a 52

a 58

72

62

54

50

48

48

58

48

44

36

41

62

90

104

108

128

126

142

176

191

153

146

116

116

148

126

120

163

-

Hay

254

551

438

522

548

584

564

656

668

595

612

456

390

390

372

337

337

365

372

407

407

379

385

334

312

326

323

344

309

257

242

June

227

242

254

368

295

242

257

323

400

372

455

502

344

278

242

230

254

306

278

337

438

449

312

254

235

236

242

236

233

236

-

July

233

230

248

330

320

267

206

302

267

221

194

170

163

151

137

158

173

142

139

139

142

170

188

160

144

135

128

131

125

116

102

Aug.

118

102

100

110

153

120

114

115

100

96

95

122

114

128

94

88

94

112

102

94

98

114

104

92

84

75

68

76

74

82

72

Sept.

62

60

62

52

48

54

58

50

54

104

137

98

84

76

58

60

62

74

68

64

58

54

50

44

41

40

40

39

38

40

-

* 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. 23 to Mar. 1.

Monthly discharge, In second-feet, 1944-45, 1946-47

Month

December. ...................................

May.........................................

September. ..................................

Water year 1944-45 .......................

Calendar year 1945 .......................

December. ...................................

Calendar year 1946 .......................

May.........................................

July........................................

September ..................................

Water year 1946-47 ......................

Secondfoot-days

562

1,139

34,394

700

, 23,969

^ 435

897

2,894

12,938

9,058

5,842

3,113

1,839

39,910

Maximum

23

25

1 30

330

58

463

27

394

17

21

50

191

568

502

330

153

137

668

Minimum

18

1 ^A

29

14

25

24

16

16

12

14

20

36

242

227

102

68

38

12

Mean

18 9

21.4

38.0

94.2

28.8

27.4

22.6

65.7

14.0

17.1

28.9

96.5

417

302

188

100

51.3

109

Runoff in 

acre- feet

1,310

o'pgo

2,250

58,220

1,770

1,630

1,390

47 , 540

863

948

1,780

5,740

25,660

17,970

11,590

6,170

3,650

79,150
GUNNISON RIVER BASIN 109

Castle Creek near Baldwin, Colo.

Location.- Water-stage recorder, lat. 38°46', long. 107"06', in sec. 2, T. 15 S., R. 87 

W., lir miles upstream from mouth and 2 miles southeast of Baldwin.

Drainage area.- 17.5 square miles.

Records available.- October 1944 to September 1947 (no winter records 1944-45).

Extremes.- Maximum discharge during year, 276 second-feet May 8 (gage height, 5.71

feet), from rating curve extended above 120 second-feet; minimum observed, 3.7 secondfeet Mar. 6 (discharge measurement), but may have been less during period of no gageheight record.

1944-47: Maximum discharge, 362 second-feet July 23, 1945 (gage height, 6.62 feet), 

from rating curve extended above 100 second-feet; minimum observed, that of Mar. 6, 

1947.

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

whicn are fair. No diversion above station.

Discharge, in second-feet, water year October 1946 to September 19.S

Day

1

2

3

4

5

6

7

8

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

6.8

8.0

7.0

7.0

7.0

11

10

10

10

9.6

9.0

9.4

9.0

8.2

7.7

7.7

7.2

7.7

7.2

7.2

7.2

7.2

7.2

7.0

7.0

7.0

7.0

7.9

7.7

7.0

Nov.

6.7

6.2

7.4

7.9

5.7

*5.9

5.9

5.5

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.5

5.5

5.5

5.5

5.5

5.5

-

Dec.

(»)

5.2

Jan.

* 4.8

Feb.

(»)

4.6

_

_

-

Month

October. ................................. .

November. ..................................

December ................................. .

Calendar year 1946 ......................

January .................................. .

February. ............................ .....

March. .......................... . ........

April ......... ... ....... ... ...... ... .

May...................................... .

June ........................... ..... ... .

July. ............. ........... ...... ... .

August ........................ ...... ... .

September. ........ ........... ....... . . .

Water year 1346-47 . ........ ...... . . .

Mar.

X

(*)

> 5.6

Apr.

9.6

9.6

10

11

12

12

11

11

11

11

11

11

11

12

14

15

*b!6

b21

b23

b22

b26

29

27

24

22

24

25

24

23

25

-

Secondfoot-days

244.9

176.1

161.2

' 9,095.9

148.8

128.8

173.6

513.2

3,143

3,900

2,681

1,009

670

12,949.6

May

29

44

72

104

120

158

160

176

158

163

115

79

80

79

*65

62

73

79

106

111

120

124

102

82

97

118

124

111

85

74

73

Maximum

11

7.9

194

_

29

176

238

161

55

57

238

June

78

95

97

99

90

84

131

182

188

145

142

102

97

78

82

109

138

129

142

200

238

160

116

107

111

142

152

161

160

145

-

Minimum

6.(

5.

.

_

_

9.

29

78

43

22

13

-

July

142

145

159

161

147

131

131

123

124

116

97

73

74

72

BZ

73

70

64

64,

5?

56

57

63

55

52

43

47

45

45

45

48

Aug.

43

37

34

32

45

35

40

34

30

30

34

34

55

41

33

30

38

37

32

29

28

37

30

27

25

22

24

24

22

25

22

Mean

) 7.90

5 5.87

5.2

24.9

4.8

4.6

5.6

; 17.1

101

130

86.5

32.5

22.3

35.5

Sept.

19

19

19

18

18

19

19

17

22

57

42

34

29

25

24

22

27

29

28

24

22

19

18

16

16

15

14

13

13

13

Runoff in 

acre feet

486

349

320

19,030

295

255

344

1,020

6,230

7,740

5,320

2,000

1,330

25,69-J

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Oct. 1-15, Nov. 6 to Apr. 16, Apr. 22-30 (stage-discharge affected by 

ice during most of periods November to April); discharge computed on basis of 6 discharge mensurements, weather records, and records for Ohio Creek n«ar Biliwin.
110 GUNNISON RIVER BASIN

Tomichi Creek at Sargents, Colo.

Location.- Water-stage recorder, lat. 38°24 I , long. 106°25', in 3W^ sec. 21, T. 48 N., 

R. 5 E., 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 1947.

Average discharge.- 14 years, 66.3 second-feet.

Extremes.- Maximum discharge during year, 371 second-feet June 9; maximum gage height

recorded, 2.72 feet Apr. 4 (ice jam); minimum daily discharge, 12 second-feet Feb. 7-10.

1917-22, 1938-47: 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, 

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

20

21

22

21

23

22

24

*23

24

24

23

28

24

24

24

24

24

24

26

29

29

27

26

26

25

25

24 

24

27

27

24

Nov.

25

27

21

25

26

30

35

3D

30

33

*33

29

30

32

31

30

29

29

30

31

30

30

30

31

29

25

27 

27

27

27

~

Dec.

27

27

24

24

25

*26

26

25

23

22

23-

24

25

24

23

23

22

21

22

24

22

23

23

23

23

23

23 

23

21

19

17

Jan.

17

17

18

19

18

*19

20

20

20

20

20

20

20

19

18

16

14

14

15

15

15

15

15

15

16

16

16 

15

14

14

14

Feb.

14

14

14

14

13

13

12

12

12

*12

13

13

13

14

14

14

14

14

14

14

15

15

16

16

17

17

18 

19

-

_

-

Month

October. ...... ... . . ... .................

November. ................ ... ... .........

December. .......... ..... .................

Calendar year 1946 .... ... .... .....

January .................. ... ..... ....

February. ................ . . . . ...

March. ......................

April ....... . ....... . . . ...

May . ...... ...................

June . .... . ........... ..... ...

July. ..... ... ........... . . ...... .

August .... .......... .... . . ........

September. . ..... . . .... ...

Water year 1946-47 ... . - ... ....

Mar.

19

20

*21

22

23

23

24

24

24

24

24

24

24

24

24

25

26

27

28

29

30

32

34

36

33

31

30 

33

37

42

45

Apr.

Second 

foot-days

758

869

720

13, O28

524

4OO

862

1,340

7,392

6,777

2, 278

1,441

1,185

24,546

* Winter discharge measareraenfc made on this day.

Note.- Sfcaee-dlscharge relation ,if felted by lo'e NJV. J

height record Nov. 18 to Apr. 3 (ata.se-dlscha.rse relit Ic

discharge computed on basis of 4 discharge measure-neits,

45

43

39

*37

36

35

34

34

34

33

31

31

33

35

39

44

*56

51

46

57

64

68

63

53

44

50

54 

47

46

58

-

May

81

111

148

176

202

230

235

260

288

295

315

255

215

215

215

238

215

212

228

250

270

295

300

265

265

288

230 

302

258

235

240

Maximum

29

35

27

123

20

19

45

68

315

342

111

69

63

342

June

228

255

258

252

248

245

292

332

342

325

295

285

228

220

218

222

212

208

200

270

252

228

188

164

154

148

138 

131

122

117

Minimum

20

21

17

17

14

12

19

31

81

117

42

33

32

12

July

111 ioe ice

10S

10?

9S

10 e

104

95

90

79

71

71

69

66

69

71

63

64

64

57

58

64

60

51

47

46

46

46

43

43

Aug.

Mean

24.5

29.0

23.2

35 7

16.9

14.3

27 . 8

44.7

238

73.5

46.5

39 " 5

67.2

-7, 11-14, 16, 17, Apr. 1-lc. No

n probably affected hy Ice during

weather r-ecords, and records for

37

34

33

37

54

41

37

37

47

41

41

43

43

40

38

46

68

69

68

56

53

60

60

50

48

46

43 

43

41

46

41

Sept.

40

40

39

38

39

39

38

37

44

57

63

50

44

40

39

38

38

43

40

39

37

34

33

33

33

33

32 

32

34

39

Runoff in 

acre-feet

1,500

1,720

1 , 430

25,840

1,040

793

1,710

2,660

14,660

13,440

4,520

2 , 86O

2,350

48,680

L '- f '-

oeriod) ;

station at
OUMISON RIVER BASIN 111

Tomiohl Creek near Doyleville, Colo.

Location.- Water-stage recorder, lat. 38°25', long. 106°30', in Wfi£ sec. 22, T. 48 N., 

R. 4 E., a quarter of a mils downstream from Tie Creek and 6 miles southeast of 

Doyleville.

Drainage area.- 228 square miles. « 

Records available.- November 1944 to September 1947.

Extremes.- Maximum discharge during year, 373 second-feet June 9, from rating curve extended above 280 second-feet; maximum gage height, 5.85 feet May 11; minimum daily 

discharge, 13 second-feet Nov. 3.

1944-47: Maximum discharge, that of June 9, 1947; maximum gage height, that of 

May 11, 1947; minimum daily discharge, that of Nov. 3, 1946.

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

which are fair. Small diversion above station for irrigation.

Discharge, in second-feet, water yesr October 1946 to September 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.

18

18

18

18

20

19

22

*22

23

23

19

20

24

21

22

22

24

24

21

20

24

22

23

23

22

21

23

23

27

30

25

Nov.

21

18

13

17

25

25

26

29

29

25

*21

21

22

24

25

24

23

24

26

27

26

25

26

27

27

26

27

27

27

27

-

Dec.

28

28

29

28

28

*28

28

28

27

26

. 27

27

27

26

26

25

24

22

24

25

24

24

24

24

23

23

23

23

21

19

18

Jan.

17

16

17

17

17

17

18

18

18

*18

18

18

18

18

18

17

17

18

19

19

19

19

19

19

19

19

19

18

18

17

17

Feb.

17

18

18

18

17

17

*17

17

17

17

17

17

18

18

18

19

19

19

19

19

20

20

21

21

21

20

20

20

_

_

-

Month

October. .................... ........... .

November ......................... .........

December. ..................................

Calendar year 1946 ......................

January .................................. .

February ..................... .............

March ... .................................

April ................................ .....

May. ............. .........................

June ..................... .................

July. .................................. ...

August .......................... .........

September. ... ............... .............

Water year 1946-47 ....... . ............

Mar

21

21

*22

23

23

24

25

25

26

26

26

26

26

26

27

27

28

29

30

*32

34

36

40

45

49

42

38

43

45

52

56

Apr.

60

62

61

*59

42

31

31

30

36

36

34

33

42

44

79

63

62

64

60

68

85

85

78

71

60

63

68

61

55

63

-

Second 

foot-days

681

730

777

13,381

556

519

993

1,686

8,397

7,168

2,231

1,430

1,201

26,369

May

96

133

174

204

226

261

264

280

301

301

346

287

245

244

253

274

268

253

266

284

306

335

337

306

294

321

333

349

310

274

272

Maximum

3o

29

29

123

19

21

56

85

349

351

116

75

74

351

June

258

27S

279

268

268

260

299

339

351

335

301

297

255

232

226

221

224

220

213

271

266

245

212

181

168

161

150

140

130

122

-

Minimum

1

1

1

1

1

2

3<

9

12

5

2

3

1

Julj116

109

104

112

105

100

109

106

98

86

77

68

66

63

59

62

67

59

61

61

55

56

62

62

52

49

45

42

42

39

39

Aug.

34

30

29

34

55

40

35

34

42

39

39

41

41

39

36

42

67

75

71

61

53

59

64

53

49

46

44

43

42

48

45

lf«an

3 22.0

3 24, 3

3 2s!l

5 36.7

3 17.9

32.'o

3 56.2

3 271

> 239

3 72.0

3 46.1

> 40.0

5 72.2

Sept.

42

40

39

37

38

38

37

36

45

62

74

54

46

40

39

38

38

43

40

39

36

34

33

32

33

33

32

32

32

39

Runoff in 

acre-feet

1,350

1,450

1,540

26,540

1,100

1,030

1,970

3,340

16,660

14,220

4,430

2,840

3,380

52,310

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 6-9, 11-14, 16-18, 20, 21, 25-25, 27, 2 i, Dec. 

6-9, 14-28, Feb. 7-9, Feb. 21 to Apr. 4. No gage-height record Dec. 3-5, 10-13, D;c. 29 to Feb. 6. 

Feb. 1O-20 (stage-discharge relation probably affected by Ice during entire periods); discharge computed on basis of 1 discharge measurement and weather records.
GUNNISON RIVER BASIN

Tomichi Creek at Parlin, Colo.

Location.- Water-stage recorder, lat. 38°30', long. 106°44', in NW£ sec. 23, T. 49 N., 

R. 2 E., at Parlin, and a quarter of a mile downstream from Quartz Creek.

Drainage area.- 586 square miles.

Records available.- November 1944 to September 1947.

Extremes.- Maximum discharge during year, 499 second-feet June 13 (gage height, 5.61 

feet), from rating curve extended above 260 second-feet; minimum daily, 8.8 secondfeet Oct. 15.

1944-47: Maximum discharge, that of June 13, 1947; minimum daily, 3.5 second-feet 

July 10-14, 17, 18, 1946.

Remarks.- Records good except those for periods of ice effect or no gage-h3ight record, 

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year Octcber 1946 to September 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.

11

11

12

13

14

13

12

11

10

10

9.2

9.2

9.6

9.2

8.8

10

12

10

9.6

9.2

9.2

9.2

9.2

9.2

9.2

9.6

9.2

9.2

10

11

12

Nov.

11

10

11

14

14

14

15

18

19

16

*15

17

26

31

26

19

26

26

27

27

27

27

28

28

26

23

24

25

25

25

"

Dec

24

23

22

22

22

24

25

*26

25

22

21

21

21

21

21

20

19

19

16

17

18

18

18

18

18

18

18

18

16

13

13

Jan.

13

14

14

13

13

13

13

14

14

*14

14

14

14

13

12

11

10

11

11

11

11

11

12

12

12

12

11

11

10

10

10

Feb.

10

11

11

11

10

9.6

*9.0

9.0

9.0

9.3

9.2

9.3

9.5

9.8

10

10

10

111111

1111

12

12

12

12

12

12

_

-

-

Month

October ....................................

November ......................... .........

December ...................................

Calendar year 1946 ......................

January. ................................. .

February ........................ ........ .

March. .....................................

April. ....................... .............

May. .......................................

June .......................................

July .......................................

August .................... . . ... .....

September. ................ . . .... .....

Hater year 1946-47 ....... .............

Mar.

12

13

13

*14

14

15

16

16

17

18

18

18

19

19

20

21

22

24

27

*29

34

41

53

65

65

52

60

77

94

122

132

Apr.

136

134

126

121

96

84

70

72

80

. 80

73

57

49

68

33

102

84

98

97

98

106

114

115

114

103

100

103

106

97

93

Secondfoct-days

320.8

640

617

10,165.5

378

293.7

1,160

2, 859

8,647

6,470

1,450

1 452

1^054

25,341.5

May

104

126

149

174

205

226

265

259

262

318

371

447

367

262

250

324

339

332

276

268

262

268

286

318

290

268

279

328

391

351

282

Maximum

14

31

26

112

14

12

132

136

447

455

84

76

73

455

June

2S6

235

241

244

259

253

226

241

279

282

282

35i

455

307

211

185

178

176

158

166

214

250

229

190

144

128

110

75

72

65

Minimum

8* £

10

13

3.5

10

9.0

12

49

104

65

29

26

22

8.8

July

50

46

44

45

57

64

68

8*

70

57

5C

4?

3T

35

3E

41

38

34

36

3£

47

SO

52

46

41

36

33

33

33

29

Aug.

27

26

28

29

52

52

43

36

33

33

33

38

38

39

36

34

48

69

76

73

70

65

73

69

59

54

49

46

45

40

39

Me*n

10. 3

21 3

19^9

27.9

12.2

10.5

37.4

279'

216

46.8

46 . 8

35.1

69.4

Sept.

29

34

32

31

29

29

29

29

31

42

65

73

57

47

40

37

37

37

37

38

36

29

26

29

28

28

26

22

23

24

Runoff in 

acre-feet

636

1,270

1,220

20,140

750

 TAA

5^670

17,150

12,830

2, 880

2, 880

2,090

50,260

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 19, 20, Nov. 22 to Jan. 9, Mar. 3, 4. No 

gage-height record Jan. 10 to Mar. 2, Mar. 5-19 (stage-discharge relation affected by ice during 

most of periods); discharge computed on basis of 2 discharge measurements and weather records.
GUNNISON RIVER BASIN 113 

Tomichi Creek at Gunnison, Colo.

Location.- Water-stage recorder, lat. 38°32', long. 106°5G', in sec. 11, T. 49 N., R. 1 

W., half a mile upstream from mouth and I mile south of Gunnison. Datura 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 1947. November, December 1910 (gage heights 

only, datum then in use).

Extremes.- Maximum discharge during year, 910 second-feet June 11 (gage height, 3.09 

feet); minimum daily, 38 second-feet Oct. 1.

1938-47: 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, 1Q40.

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 1946 to September 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.

38

39

40

40

40

41

56

57

57

57

57

60

66

68

7 LI

70

70

66

70

71

71

73

73

75

73

71

70

70

75

84

84

Nov.

75

75

57

*60

73

70

79

10Z

102

84

73

75

79

84

87

84

79

79

80

83

86

82

86

90

88

86

88

95

96

102

-

Dec.

102

93

*95

86

86

93

102

109

82

78

78

79

79

78

78

76

74

68

62

70

66

70

70

67

67

68

68

68

56

49

45

Jan.

46

47

50

47

45

47

49

51

52

*52

52

51

51

50

47

44

45

48

48

48

49

50

50

50

51

52

52

51

50

47

49

Feb.

52

55

57

55

54

54

52

49

48

*53

52

52

52

55

55

58

58

58

58

57

56

58

60

60

60

61

60

60

_

_

-

Month

October. . .................................

November. ................. ..... .........

December. .................................

Calendar year 1946 ......................

January .................................. .

February. ....................... ..........

March.. ..... ....... ...... .... ..........

April ............... ...... .......... . .

nay Mnv . . . .......... ....... ..............

June .... .................. ....... .......

July. ... ........... ...... ....... .......

August ............... ....... ...... .....

September. ..... ..... . . ....... .....

Water year 1946-47 ... ...............

Mar.

56

59

61

*64

65

68

68

68

66

70

63

72

76

72

78

78

82

86

90

100

120

145

165

150

150

157

152

171

206

243

278

Apr.

270

262

262

*232

215

171

174

168

177

177

171

142

137

152

182

222

212

222

254

258

286

350

345

322

274

232

243

250

229

212

-

Secondfoot-days

1,952

2,479

2,362

35,003

1,521

1,560

3,384

6,803

17,758

17,790

6,409

6,679

5,659

74,356

May

240

294

380

470

520

550

595

62 j

635

684

712

744

684

575

E5D

605

673

656

575

530

510

530

555

580

545

550

550

662

717

662

605

Maximum

84

102

109

290

52

61

278

350

744

860

410

295

305

860

June

605

585

620

678

678

656

640

712

816

860

854

849

810

684

525

490

495

525

545

555

596

674

618

520

455

405

380

345

320

295

-

Minimum

3

5

4

3

4

4

5

13

24

29

13

14

13

3

July

280

252

234

248

300

325

365

380

410

320

243

195

173

154

142

152

162

If 7

HZirz

134

152

ies ie2

147

149

149

149

152

142

142

Aug.

144

142

144

160

239

248

205

190

19Z

202

187

187

187

187

184

181

Z20

Z57

Z95

295

280

266

Z71

271

Z57

ZZ3

Z09

198

205

2Z3

230

Mvin

3 63.0

7 82.6

5 76.2

3 95.9

1 49.1

3 55.7

5 109

7 227

D 573

5 593

2 207

2 215

2 189

3 204

Sept.

zoz

190

198

190

181

190

190

181

190

252

305

Z95

Z39

205

184

176

173

178

190

198

190

181

165

160

154

152

147

137

13Z

134

-

Runoff in 

acre feet

3,870

4,920

4,680

69.4ZO

3,020

3,090

6,710

13,490

35.Z20

35,290

12,710

13,Z50

11,220

147,500

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 13-16, 19-25, 27-29, Dec. 9-16, Mar. 8, 18-25. 

No gage-height record Dec. 17 to Mar. Z, Mar. 5 (stage-discharge relation probably affected by i<:e 

during most of per-lodra); discharge computed on basis of 2 discharge measurements ard weather records.
GUNNISON RIVER BASIN

Quartz Creek near Ohio, Colo.

Location.- Water-stage recorder, lat. 38°34 I , long. 106°38', In SW£ sec. 27, T. 50 N., 

H. 3 K., half a mile downstream from Willow Creek and 1 mile southwest of Ohio.

Drainage area.- 101 square miles.

Records available.- April 1938 to September 1947.

Kxlremes.- Maximum discharge during year, 502 second-feet June 9 (gage height, 3.53 

feetJ; minimum not determined, occurred during period of no gage-height record.

1938-47: Maximum discharge, 640 second-feet May 26, 1942, from rating curve extended above 470 second-feet; maximum gage height, 5.73 feet 

1945 (backwater from unnamed tributary 300 feet below station 

charge, 10 second-feet Feb. 6, Sept. 16, 17, 1940.

present datum) July 31, 

minimum daily disRemarks.- Records good except those for period of ice effect or no gage-height record, 

which are fair. Small diversions above station for irrigation. Slight regulation 

small power plant 3 miles above station.

Discharge, in second-feet, water year October 1946 to September 1947

by

Day

1

2

3

4

5

6

7

8

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

16

18

18

19

19

23

*22

23

22

22

24

24

24

24

24

24

24

22

21

22

22

22

22

22

21

20

22

24

22

22

Nov.

19

20

17

( )

17

~

Dec.

(*)

> 18

Jan.

(*)

19

Feb.

(*)

 20

_

_

-

Month

October. ............. .... ...........

November. ........................ .........

December. ............. ....................

Calendar year 1946 ...............

January. .......... ....................

February. .............................

March. .............................. .....

April ............... ...............

May............... ..... .............

June. ... ................ ...........

July. ... ..... ... ...... .............

August ........ .... . . . .... ........ .

September. .... ... . . ....... . . ......

Water year 1946-47 ... ... ........

Mar

(*)

1 19

I

Apr.

21

22

*23

21

20

21

20

19

19

19

19

20

20

20

23

24

25

27

29

35

46

49

43

39

33

32

32

30

31

39

-

Secondfoot-days

671

515

558

12 , 566

558

560

589

821

5 752

7^272

2, 856

1,433

1,293

22,878

May

56

84

131

165

191

206

224

245

263

236

218

170

148

143

141

143

141

143

145

158

173

209

215

182

197

248

263

269

221

206

218

Maximum

24

.

245

49

269

400

173

64

61

40O

June

215

239

248

242

212

224

308

383

400

330

281

239

191

176

200

239

251

245

236

305

290

245

206

191

191

206

2O 3

197

194

185

-

Minimum

ie

_

is

56

176

44

37

34

-

July

173

168

162

160

155

143

139

129

119

109

101

91

80

79

82

7P

76

73

73

67

6f

6E

6f

5f

sr

50

4E

51

4£

47

44

Aug.

42

40

40

47

60

50

47

48

48

45

40

37

38

40

38

42

57

57

64

62

49

53

52

48

45

43

41

42

41

46

41

Me-an

21.6

17.2

18

34.4

18

20

19

27.4

186

242

92.1

46.2

43.1

62.7

Sept.

40

43

45

43

44

47

45

44

49

58

61

53

50

46

45

43

43

44

42

42

40

38

38

37

37

36

36

34

34

36

Runoff in 

acre-feet

1,330

1,020

1,110

24,920

1,110

1,110

1,170

1,630

11,410

14,420

5,660

2,840

2,560

 45,370
GUNNISON RIVER BASIN 115

Cochetopa Creek near Parlin, Colo.

Location.- Water-stage recorder, lat. 38°24', long. 106°46', in NW£ sec. 23, T. 48 N., R. 

2 E., at Timney Ranch, 1 mile downstream from Bead Creek andlS miles southwest of 

Parlin. Datum of gage is 8,131.76 feet above mean sea level, datum of 1929.

Drainage area.- 346 square miles.

Records available.-- April 1941 to September 1947. 

Bureau of Reclamation.)

(April to December 1940 in files of

Extremes.- Maximum discharge during year, 317 second-feet July 8 (gage height, 3.31 

feet); minimum daily, 13 second-feet Jan. 17, 18.

1941-47: Maximum discharge, 594 second-feet May 14, 1944 (gage height, 5.02 feet), 

from rating curve extended above 380 second-feet; minimum daily, 6.6 second-feet 

Sept. 20, 1942.

Remarks.- Records good except those for periods of ice effect or no gage-h3ight record, 

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 19'7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

£5

25

26

27

28

29

30

31

Oct.

14

14

16

16

17

18

 26

23

20

21

23

24

28

24

25

25

25

25

21

22

23

24

24

23

22

Nov.

22

21

b!5

b!6

b!8

b!9

b20

b20

b!9

bid

b!6

*b!5

b!7

b!9

b25

28

27

28

29

32

33

32

33

33

33

32

32

33

34

34

-

Dec.

33

32

31

31

30

 30

32

34

31

28

28

28

28

28

27

26

25

25

25

26

26

26

26

25

25

25

24

23

21

18

16

Jan.

16

16

16

16

16

17

*17

17

17

17

17

17

17

17

15

14

13

13

14

16

17

17

17

17

17

17

17

16

16

15

15

Feb.

16

17

17

17

16

15

 15

15

15

15

15

16

16

17

17

18

IS

18

18

18

19

19

20

20

21

21

22

22

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

March. .....................................

Hay. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

22

23

24

»24

25

26

26

27

27

27

27

28

28

28

29

30

31

32

33

35

37

40

45

50

54

47

42

44

47

51

57

Apr.

60

58

*b54

b41

36

31

30

31

31

31

30

29

32

39

*59

76

64

75

84

88

112

129

116

98

51

45

48

43

40

41

Seoondfoot-days

833

11,142

493

2,434

23,210

Hay

75

90

112

164

145

166

154

156

177

159

177

161

123

116

123

142

148

129

116

100

90

106

111

122

93

99

117

145

150

120

126

Maximum

34

34

95

135

244

June

140

143

154

164

169

166

177

196

213

216

208

213

193

156

143

151

159

183

203

174

183

191

170

158

140

132

138

137

135

138

Minimum

15

16

10

1'

58

12

July

143

143

140

164 16.'

16*

172

244

198

159

13A

112

86

82

87

94

104

75

69

66

71

7f

7f

6t

64

G£

57

57

se

55

58

Aug.

61

59

57

61

72

74

61

62

74

66

54

57

62

66

66

61

62

75

93

90

87

76

88

112

94

84

80

93

123

114

He*n

25.1

26.9

30.5

129

107

81.1

63.6

Sept.

88

94

98

88

88

87

87

82

87

124

135

102

82

76

69

66

66

72

90

88

80

75

72

65

64

61

59

58

61

66

Runoff in 

acre-feet

1,400

1,490

1,650

22,100

990

2,110

7,960

10,000

6,650

4,830

46,040

» Winter discharge measurement made on this day. 

b Stage-discharge relation affected by loe.

Note.- No gage-height record Hov. 16 to Apr. 2 (stage-discharge relation affected by ice during 

moat of period); discharge computed on basis of 4 discharge measurements and weather records.
116 (KJNNISON RIVER BASIN

Cebolla Creek near Lake City, Colo.

Location.- Water-stage recorder, lat. 37°59', long. 107°10', in sec. 14, T. 43 N., R. 3 

W., Just downstream from Tumble Creek and 26 miles southeast of Lake City.

Drainage area.- 25.5 square miles.

Kecoras available.- July 1946 to September 1947.

Extremes^- Maximum and minimum discharges for period July 1946 to September 1947 not 

determined, occurred during period of no gage-height record.

Remarks.- Records excellent except those for July 16, 1946, to Oct. 31, 1946, which are 

rair, and thos.e for period of no gage-height record, which are poor. 559 acre-feet 

diverted above station during 1-947 to Clear Creek in Rio Grande Basin.

Cooperation.- Record of flow diverted to Clear Creek furnished by State engineer.

Discharge, In second-feet, 1946-47

1946

Day

1 

2 

3 

4 

5 

6 

7 

8

July

:

Aug.

8.5 

8.2 

.6 

.6 

.1 

.1 

.3 

.1

Sept.

6.4 

6.0 

5.9 

5.7 

5.7 

5.6 

5.6 

5.6

Day

9 

10 

11 

12 

13 

14 

15 

16

July

10

Aug.

6.9 

6.9 

7.6 

7.6 

7.3 

7.1 

7.1 

6.9

Sept.

5.6 

5.6 

6.1 

5.9 

5.7 

5.7 

5.7 

5.7

Day

17 

18 

19 

20 

21 

22 

23 

24

July

10 

10 

14 

15 

12 

8.2 

7.9 

7.9

Aug.

6.7 

6.6 

6.6 

6.6 

6.6 

6.9 

8.5 

6.4

Sept.

5.6 

6.3 

5.6 

5.4 

5.4 

5.4 

5.4 

5.4

Day

25 

26 

27 

28 

29 

30 

31

Jily

7.9 

8.2 

7.9 

12 

12 

9.5 

10

Aug.

6.1 

6.1 

6.4 

6.1 

6.0 

6.1 

6.6

Sept.

5.4 

5.4

5.6 

5.6 

5.6 

5.6

Day

1

2

3

4

5

6

7

8

9

10

1112'

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5.6

6.6

5.7

6.3

6.0

6.6

7.1

7.9

7.9

7.6

9.5

8.5

7.3

7.1

7.1

6.9

7.1

6.7

7.1

7.1

6.9

6.7

6.6

6.7

6.6

6.9

6.7

7.1

8.5

b7.9

6.4

Nov.

 as.o

"

Dec.

> a4.5

Jan.

. a4.0

Feb.

 a4.o

_

-

liar.

> a5.0

Apr.

 a 11

-

May

a70

aB6

alOO

al!2

a!25

aioa

a 102

a!30

98

85

66

52

46

48

46

42

40

43

54

67

7l

84

80

61

77

93

as

75

64

82

78

June

75

78

75

66

59

63

71

68

64

55

49

45

40

38

38

35

35

42

41

38

44

37

31

29

30

31

30

29

27

26

-

July

£6

24

26

25

23

23

31

29

23

20

19

18

17

19

19

20

18

17

15

15

15

16

14

14

14

12

12

12

11

11

11

Aug.

10

9.5

10

12

13

11

10

10

10

9.0

9.5

10

10

10

11

11

11

12

14

12

12

14

12

11

10

9.5

9.5

11

10

11

9.5

Sept.

9.0

9.5

8.5

8.2

8.2

9.0

8.2

9.0

11

14

13

12

9.5

9.0

9.0

9.0

9.5

10

11

9.5

9.0

9.0

9.0

8.5

8.5

8.5

8.5

8.5

9.0

9.5

a No gage-height record (stage-discharge relation affected by ice during most of period), dis-' 

charge computed on basis of weather records and records for station at Powderhon. 

b Stage-discharge relation affected by ice.

Monthly discharge, in second-feet, 1946-47

Month

December. ..................................

Calendar year ......................

Hay. .......................................

September. ................... .............

Water year 1946-47 ...... . . ............

Sacondfoct-days

170.2

-

218.7

139.5

.

124.0

569

Z84.1

6,178.8

Maximum

6.4

-

9.5

-

-

_

_

_

130

78

31

14

130

Minimum

5.4

-

5.6

-

-

_

_

40

26

11

9.0

8.2

-

I'oan

5.67

-

7.05

5.0

4.5

-

4.0

11

76.5

18.4

9.47

16.9

Runoff in 

acre-feet

322

338

1,090

434

298

277

-

246

4,710

2,760

1,130

564

12,270
GUNNISON RIVER BASIN 117

Cebolla Creek at Powder-horn, Colo.

Location.- Water-stage recorder, lat. 38°17'30", long. 107°07'00", in SE£ sec. 29, T. 

47 N., R. 2 W., 250 feet downstream from Powderhorn Creek and half a mile north of 

Powderhorn.

Drainage area.- 334 square miles.

Records available.- April 1938 to September 1947 (no winter records in 1944).

Extremes.- Maximum discharge during year, 1,260 second-feet May 9 (gage height, 2.67

reet), from rating curve extended above 500 second-feet; minimum daily. 35 second-feet 

Dec. 31, Feb. 9.

1938-47: Maximum discharge, 2,150 second-feet May 16, 1944 (gage height, 3.00 feet), 

from rating curve extended above 710 second-feet; minimum daily, 22 second-feet 

July 14, 1940.

Remarks.- Records excellent May 10 to Sept. 30, others 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 1946 to September 19

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

2V

28

29

30

31

Oct.

65

65

63

61

68

61

81

68

68

65

54

57

65

56

57

57

59

57

50

52

54

54

54

54

54

52

56

56

76

68

50

Nov.

48

47

40

48

*45

54

48

59

50

42

37

54

58

61

48

40

45

48

55

54

54

58

60

57

54

52

58

58

54

52

-

Dec.

52

54

*53

48

52

53

53

50

48

48

52

52

52

52

50

4S

42

39

37

45

43

45

46

45

46

45

46

44

40

37

35

Jan.

36

36

37

37

37

38

40

*41

40

40

40

39

38

38

37

36

37

38

38

39

39

40

40

40

40

40

39

39

38

38

37

Feb.

38

40

41

41

*40

39

38

37

35

37

38

38

38

39 ' 39

4O

41

42

41

40

40

40

41

42

42

44

42

40

_

_

-

Month

November . ........................ ... ...

December ...................................

Calendar year 194S ......................

March. ............................... .....

April. ............................... .....

May. .......................................

July. ............. ........... ............

September ..... ............................

Water year 1946-47 ......................

Mar.

38

38

40

40

40

40

*40

41

41

41

40

40

41

41

42

42

44

47

50

58

68

78

82

68

60

52

52

56

76

82

74

Apr.

82

*85

79

68

54

48

54

52

54

50

48

47

48

65

90

95

88

123

123

138

203

222

215

203

138

136

179

179

155

211

Secondfoot-days

1,450

28,118

1 192

1 592

3 332

3,309

45,790

May

310

362

498

620

656

710

524

516

755

460

418

319

262

244

239

226

215

203

215

248

292

348

372

266

266

342

397

432

319

324

354

Maximum

54

270

319

157

755

June

378

397

432

411

348

319

411

508

439

418

360

354

302

252

257

257

266

330

308

297

348

324

262

230

215

222

215

219

226

215

Minimum

35

35

89

35

July

211

211

215

25 1

22?.

23C

266

319

26f

22?

203

18?

171

164

166

171

164 i4e

14C

13E

14f

15C

140 lie

114

111 ice

10E

10C

92

97

Aug.

94

89

89

97

111

108

102

105

92

94

108

116

116

116

126

119

132

140

171

168

160

157

160

150

132

122

119

122

129

157

140

Mean

46.8

77.0

110

125

Sept.

132

129

126

122

119

119

119

108

116

154

157

129

116

114

105

102

100

105

108

108

102

94

94

92

89

89

89

89

89

94

-

Runoff in 

acre-feet

2,880

55,780

6,560

90,820

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 13, 17, 19-23, Nov. 27 to Dei. 15. No gage 

height record Dec. 16 to Apr. 1 (stage-discharge relation affected by Ice during most of period): 

discharge computed on basis of 3 discharge measurements and weather records.
118 GUNNISON RIVER BASIN

Sapinero Creek at Sapinero, Colo.

Location.- Water-stage recorder, lat. 33°23'30", long. 107°18'00", in sec. 28, T 49 N., 

R. 4 W., at crossing of 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 availal IH.- October 1910 to September 1914, October 1945 to Septenber 1947.

Extremes.- Maximum iischarge during year, 540 second-feet May 5 (gage height, 4.04 feet); 

minimum not determined, occurred during period of no gage-height record.

1910-14, 1945-47: Maximum discharge observed, 790 second-feet May 15, 1914 (gage 

height, 5.4 feet, datum then in use); minimum daily, 1.7 second-feet Aug. 12, 1946.

Remarks.- Records fair. Diversions for irrigation above station.

Discharge, in second-feet, water year October 1946 to September 1?47

Day

1

2

3

4

5

6

7

8

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

2.8

4.0

3.S

2.6

3.0

3.8

3.4

4.5

5.9

9.2

9.9

9.9

11

4.2

2.4

3.0

3.4

3.8

4.5

12

13

12

12

14

14

13

13

17

19

17

Nov.

15

14

12

14

15

b!4

b!3

12

12

11

13

b!5

*b!4

b!3

12

12

blO

bll

bll

bll

bll

b!2

b!2

12

bll

blO

b!2

b!4

b!7

b!7

-

Dec.

\

(*)

12

Jan.

\

(*)

5.0

Feb.

(*)

> 6.0

_

_

-

Month

October. .............................. ....

November ......................... .........

December ...................................

Calendar year 1946 ......................

January. ............................

February .................... ....... .....

March. ..................... ....... .

April ...... .................. ... .......

Hay................................ .......

June .......................................

July. .............................. ...

August .....................................

September. ................... ..... . ... .

Water year 1946-47 ... ...... ... . ... .

Mar.

8.0

10

9.0

10

10

11

13

*12

14

10

11

13

12

13

12

15

25

35

47

42

*45

48

52

48

38

26

26

30

40

52

50

Apr.

*48

50

51

45

40

34

33

35

38

35

35

33

35

52

99

112

133

161

133

161

234

234

186

164

126

126

150

144

126

161

Secondfoot-days

253 5

382

372

16,376.0

155.0

168.0

787.0

3,014

8,739

6,110

1,631

609.3

679

22,899.8

May

234

334

410

437

464

468

468

442

419

390

382

294

234

210

200

186

189

200

234

258

262

278

258

178

175

200

203

238

186

161

147

Maximum

19

17

268

52

234

468

278

144, G

63

468

June

136

154

182

210

206

139

214

258

278

254

250

218

192

175

161

178

218

230

218

230

258

278

226

200

189

182

175

164

147

140

Minimum

2.4

10

1.7

8.0

33

147

136

13

5.9

14

-

July

133

144

130

133

112

108

112

96

75

63

53

44

33

31

41

43

31

25

24

21

13

21

?0

17

17

17

14

13

14

14

14

Aug.

12

7.4

5.9

11

16

15

14

16

15

17

16

18

21

21

17

17

24

29

24

23

23

36

31

26

24

22

22

22

22

20

Mean

8.18

12.7

12

44.9

5.0

6.0

25 .4

100 '

282

204

52.6

19.7

22.6

62.7

Sept.

17

16

15

14

14

17

22

17

17

45

63

42

33

29

26

24

24

24

23

22

21

20

19

18

17

17

17

16

14

16

Runoff in 

acre feet

503

758

738

32,470

307

333

1,560

5,980

17,330

12,120

3,240

1,210

1,350

45,430

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 3 to Mar. 31 (stage-discharge relation affe 

ost of period)j discharge computed on basis of 4 discharge measurements and we

;ted by ice during 

ither records.
GUNNISON RIVER BASIN

Lake Fork at Gateview, Colo.

Loca

sea level, datum of 19 

Drainage area.- 370 square miles. 

Records available.- April 1938 to September 1947 (no winter records 1939, 1943, 1944).

Extremes._- Maximum discharge during year, 2,150 second-feet June 9 (gage height, 4.00 

feet); minimum daily, 35 second-feet Jan. 31, Feb. 9.

1938-47: Maximum discharge, 2,620 second-feet June 21, 1938 (gage height, 6.00 

feet, tiresent datum) , from rating curve extended above 1,800 second-feet; minimum daily, 

28 second-feet Feb. la, 1942.

Remarks.- Records excellent 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 1946 to September 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.

84

84

82

83

85

87

100

90

88

88

80

82

83

32

82

82

85

83

75

76

78

76

75

73

72

70

72

72

83

78

72

Nov.

69

69

65

69

»65

66

65

69

68

64

57

59

65

68

63

56

52

55

58

64

62

63

64

60

59

54

60

60

59

55

-

Dec.

55

58

*53

49

55

55

54

52

49

51

52

55

51

52

56

52

50

44

42

49

45

47

50

46

47

46

48

46

44

38

36

Jan.

36

37

38

37

36

37

39

*39

40

40

40

40

39

39

38

37

38

39

39

40

40

41

41

41

41

41

41

40

39

39

35

Feb.

36

36

40

40

*38

38

39

38

35

39

39

38

40

39

41

42

44

44

43

41

41

44

44

44

45

47

47

43

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. ...................... .............

April ......... ............................

July. ............. ...... ... .............

September. ............. .................

Water year 1946-47 ... ... .............

Mar.

41

45

48

48

48

48

*48

48

50

51

51

51

52

53

53

53

53

56

70

78

82

90

94

88

74

65

65

70

84

96

88

Apr.

90

*94

98

92

69

65

66

65

66

64

63

57

59

73

87

92

98

122

110

132

227

287

271

279

227

223

307

311

279

291

-

Secondfoot-days

1,527

77,911

145

8,510

119,311

May

399

545

753

1,030

1,210

1,380

1,310

1,210

1,470

1,140

936

718

578

584

596

525

490

495

530

602

746

944

1,040

776

739

944

1,100

1,200

896

808

936

Maximum

58

1,580

359

1,950

June

944

1,240

,470

,320

,120

,110

,^bO

,930

1,950

1,810

1,520

1,040

718

627

725

1,090

1,360

1,270

984

1,130

1,340

1,080

856

784

976

,250

,360

,410

,450

,460

-

Minimum

7fi

36

36

399

319

190

35

July

1,480

1,460

1,360

1,320

1,200

1,100

1,210

1,130

1,060

1,060

952

864

760

690

824

816

690

620

584

550

500

475

456

433

403

383

367

363

351

339

319

Aug.

311

287

271

263

307

291

271

275

271

259

247

251

239

235

235

208

223

235

247

259

255

303

395

395

339

303

275

279

279

323

299

Mean

49.3

213

284

327

Sept.

319

339

331

295

275

267

255

243

243

295

347

347

335

315

295

275

267

295

343

359

335

311

287

267

243

227

215

201

194

190

-

Runoff in 

acre-feet

3,030

154,500

2 390

16,880

236,700

* Winter discharge measurement made on this day.

Note.- No gage-height record Oct. 1, 2, Jan. 1 to Apr. 1 (stage-discharge relation affected by 

ice during most of period); discharge computed on basis of 3 discharge measurements and weather 

records. Stage-discharge relation affected by ice Nov. IP to Dec. ?1, Apr. 2-;.

852060 O - 49 - 9
120 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 to., at crossing of 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 1947.

Extremes.- Maximum discharge during year, 322 second-feet May 3 (gage-height, ,3.;>b feet), 

t'rom rating curve extended above 160 second-feet; minimum not determined, occurred 

during period of no gage-height record.

1946-47: Maximum discharge, that of May 3, 1947; minimum not determined, occurred 

during period of no gage-height record.

Remarks.- Records good except those for periods of Ice effect, which are fair, and those 

for period of no gage-height record, which are poor.

Discharge, in second-feet, water year October 1946 to September 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.

3.8

4.2

7.2

5.8

5.4

5.2

6.5

5.4

5.8

5.8

5.0

4.6

5.2

4.6

5.0

5.0

5.4

5.4

4.2

4.6

5.4

5.4

5.8

5.8

5.8

5.0

5.4

5.4

7.6

7.9

6.1

MOV.

5.8

4.6

4.8

 5.8

6.0

5.6

5.4

5.2

4.6

4.6

4.8

5.6

6.4

7.6

8.4

9.0

6.6

6.1

6.8

6.8

6.8

7.4

7.8

8.4

7.8

7.4

8.4

8.4

8.2

8.0

-

Dec.

(*)

6.0

Jan.

3.5

Feb.

4.0

.

_

-

Month

October. ...................................

Novembe r ...................................

December. ...................................

Calendar year ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

5.2

5.4

5.2

5.6

6.0

6.6

7.0

6.6

7.2

6.2

7.0

7.6

7.2

8.2

7.6

9.5

12

14

17

16

*17

18

19

18

15

9.9

9.4

11

12

14

14

Apr.

14

17

17

15

*15

14

13

13

14

13

11

14

15

20

33

38

45

49

43

48

75

84

78

75

58

60

75

70

62

80

-

Secondfoot days

169.7

199.1

186.0

-

108.5

112.0

324.4

1,178

5,319

4,129

1,140

273.1

285.3

13,424.1

May

141

215

260

242

242

256

254

244

230

220

212

150

118

109

105

101

105

121

140

166

IBS

190

184

152

152

162

154

156

132

114

110

Maximum

7.9

9.0

-

_

19

84

260

196

91

14

33

260

June

107

112

123

158

150

140

154

184

196

168

148

123

107

109

118

128

148

152

138

142

184

182

154

134

121

118

118

112

103

98

Minimum

3.E

4.6

-

_

5.2

11

101

98

10

6.5

5.3

-

July

88

85

91

90

77

73

72

60

50

46

39

35

31

27

27

27

23

20

18

16

16

19

18

14

13

12

11

11

10

10

11

Aug.

10

8.4

7.7

9.2

14

10

8.8

10

7.7

7.4

7.7

8.4

11

8.0

6.5

6.5

8.8

11

9.6

10

8.8

12

11

8.4

7.7

7.1

6.8

6.8

6.8

9.6

7.4

Mean

5.47

6.64

6.0

-

3.5

4.0

10.5

39.3

172

138

36.8

8.81

9.51

36.8

Sept.

6.2

5.9

5.6

5.6

5.6

7.4

9.2

6.8

7.4

27

33

19

15

12

11

10

10

9.6

8.8

8.4

8.4

7.1

6.5

5.9

5.9

5.9

5.6

5.6

5.3

5.6

Runoff in 

acre-feet

337

395

369

-

215

222

643

2,340

10,550

8,190

2,260

542

566

26,630

* Winter- discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 3-7, 10-17, 22-30, Dec. 1, Mar. 21-25. No 

gage-height record Dec. 2 to Mar. 20 (stage-discharge relation affected by Ice); discharge computed 

on basis of 1 discharge measurement and weather records.
GUNNISON RIVER BASIN 121

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., 

FT ET~ff., 350 feet downstream from Squaw Creek and a quarter of a mile northeast of 

Cimarron. 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 1947.

Extremes.- Maximum discharge during year, 1,240 second-feet June 8 (gage height, 6.10 

feet), from rating curve extended above 750 second-feet; minimum daily, 14 secondfeet Feb. 12, 13.

1943-47: Maximum discharge, 1,290 second-feet May 16, 1944 (gage height, 6.17 

feet), from rating curve extended above 750 second-feet; minimum daily, 14 secondfeet Sept. 25-27, 1943, Sept. 11, 14, 1944, Feb. 12, 13, 1947.

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

which are fair. During water year 1946-47, 37,840 acre-feet were diverted above 

station to Uncompahgre River Basin by Ciraarron and Owl Creek ditches.. Several small 

diversions in Cimarron Creek Basin for irrigation.

Cooperation.- Records of diversion to Uncompahgre River furnished by State engineer.

Discharge, in second-feet, water year October 1946 to September 1947

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

26

26

27

28

29

30

31

Oct.

33

35

46

43

48

44

61

55

65

63

32

30

35

33

34

36

39

34

29

29

30

30

32

33

30

30

32

32

43

38

35

Nov.

30

30

26

29

27

27

30

46

42

36

29

42

51

48

47

38

34

40

42

47

44

43

44

47

41

28

57

47

45

44

-

Dec.

43

47

36

41

54

53

53

*43

40

38

b37

b39

55

55

54

51

b48

b43

b41

g39

b42

b46

b48

b47

49

47

44

40

b34

b26

28

Jan.

27

28

29

30

30

31

33

33

33

33

33

34

33

32

30

28

*27

28

28

28

28

28

28

28

29

29

28

28

26

20

21

Feb.

21

20

17

17

16

17

18

16

15

18

*15

14

14

15

16

17

17

18

15

16

15

17

17

16

16

18

18

18

_

-

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

May................ .......................

July. ......................................

September .................................

Water year 1946-47 ............ .........

Mar.

16

19

22

25

25

25

28

*32

31

29

29

29

29

30

30

35

83

140

114

98

88

94

64

44

45

43

54

65

69

71

66

Apr.

59

69

66

57

45

42

47

45

51

49

45

41

46

69

89

79

88

101

96

106

136

138

142

132

92

76

108

124

95

134

-

Secondfoe t-day s

1,189

1,181

1,361

32,471

901

467

1,572

2,467

9,908

14,196

6,291

2,290

2,196

44,013

May

224

328

447

504

528

562

528

480

483

363

348

262

200

204

208

170

158

184

202

254

336

372

330

214

254

330

a350

a360

a255

a213

a260

Maximum

65

57

55

745

34

21

140

142

562

850

484

203

168

850

June

a250

a380

a470

a450

380

398

586

850

835

695

618

431

328

318

315

440

488

480

362

512

731

575

410

330

328

380

410

470

488

488

-

Minimum

2£

2£

26

16

2C

14

16

41

156

25C

24

1£

34

U

July

484

434

419

422

355

352

434

320

401

302

260

217

181

175

285

195

148

120

107

94

75

107

89

70

52

42

37

33

31

26

a24

Aug.

a22

a20

a!8

a30

55

a44

a41

42

42

122

63

52

81

121

63

51

110

154

112

85

75

88

91

91

65

54

50

72

63

203

110

Mean

38.4

43.9

89.0

29.1

I 16.7

50.7

82.2

320

473

203

73.9

73.2

121

Sept.

102

81

75

60

60

70

64

55

58

168

166

117

98

71

75

65

65

65

59

52

49

44

40

38

34

82

79

72

67

65

-

Runoff in 

acre-feet

2,360

2,340

2,700

64, 390

1,790

926

3,120

4,890

19,650

28,160

12,480

4,540

4,360

87,320

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for stations on nearby streams, 

b Stage-discharge relation affected by ice.

Note.- No t^ce-height record Dee. 31 to Mar. 7 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 2 discharge measurements and weather records.
122 GUNNISON RIVER BASIN

Crystal Creek near Maher, Colo.

Location.- Water-stage recorder, lat. 38°33', long. 107°30', in SE£ sec. 35, T. 50 N., 

R. b w., 1 mile downstream from North Fork and 7 miles southeast of Maher.

Drainage area.- 39.1 square miles.

Records available.- April 1917 to September 1919 (no winter records), July 1945 to 2e\,-

Eytremes.- Maximum discharge during year, 416 second-feet May 3 (gage height, 4.50 feet), 

from rating curve extended above 130 second-feet; minimum daily, 3.6 second-feet 

Oct. 1, FP}'. u'fj, 27.

1917-19, 1945-47: Maximum discharge observed, 419 second-feet June 13, 1917 (gage 

height, 3.2 feet, site and datum then in use); no flow at times during August 1918.

Remarks.- Records excellent above 100 second-feet and good below except those for periods 

of l''e effect or no gage-height record, which are fair. One diversion above station 

for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

3.6 

3.8 

6.6 

5.6 

5.3

4.3 

6.2 

5.6 

7.1 

6.2

4.8 

5.6 

6.2

4.6

5.6 

6.2 

5.8 

5.0 

6.2

6.6 

7.1 

7.1 

6.6 

6.2

5.8 

6.2 

6.2 

7.9 

7.5 

7.1

Nov.

6.6 

5.8

5.6 

5.8

6.0

6.2

6.6 

6.6 

6.4

6.0 

6.4 

6.8

7.1

7.3

7.6 

8.0 

8.4 

7.1

*6.6 

7.1 

6.6 

6.6 

7.5

7.0 

7.5 

7.5 

7.1 

7.5

Dec.

7.5 

7.5 

7.5 

7.5 

7.5

7.5

7.0 

6.6 

5.8

6.0 

6.0 

6.0

.5.6

5.4 

5.2 

*5.0 

4.8 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.2 

5.6 

5.2 

4.8 

4.6 

4.4

Jan.

4.4 

4.5 

4.6 

4.6 

4.6

4.7

5.1 

5.1 

5.1

5.1 

5.1 

5.1

4.8

4.9 

5.0 

5.1 

5.2 

5.2

5.2 

5.2 

*5.3 

5.2 

5.2

5.2 

5.1 

5.0 

4.7 

4.4 

4.4

Feb.

4.4 

4.4 

4.5 

4.5 

4.7

4.7

4.4 

4.4

4.8

4.7

4.5 

4.4

4.4

4.6 

.8 

.5 

.3 

.0

* .9 

.1

.1 

.1 

3.3

3.6 

3.6 

4.0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

nber. ..................................

lendar year 1946 

ary

h. .....................................

ember. .............. ....... .........

ter year 1946-47 ......... ............

Mar.

3.9 

3.8 

4.1 

4.1 

4.2

4.1

4.1 

4.1 

4.1

4.1 

4.3 

4.5

5.6

6.4 

*7.5 

11 

10 

11

12 

13 

13 

12 

10

9.2 

10 

11 

11 

12 

12

Apr.

12 

14 

14 

13

11

10 

10 

9.6 

*10 

9.6

9.6 

12 

14 

18 

33

34 

37 

40 

35 

45

64 

75 

68 

60 

46

55 

70 

S3 

51 

72

Secondfoot-days

183.9 

204.7 

181.5

9,055.6

152.8 

121.0 

234.9 

1,014.8 

4,628 

2,810 

798.8 

347.8 

301.8

10,980.0

May

121 

171 

236 

286 

280

284 

260 

238 

223 

212

216 

144 

105 

92 

93

87 

84

ICO 

116 

140

158 

158 

124 

93 

106

117

103 

90 

71 

61 

58

Maximum

7.9 

8.4 

7.5

162

5.3 

4.8 

13 

75 

286 

131 

53 

16 

30

286

June

57 

68 

72 

86 

71

72 

93 

119 

120 

98

90 

82 

78 

84 

103

109 

103 

95 

98 

.101

131 

117 

126

120 

111

103 

90 

80 

71 

62

Minimum

3.6 

5.6 

4.4

3.2

4.4 

3.5 

3.3 

9.6 

58 

57 

9.8 

7.4 

6.2

3.S

July

53 

46 

44

40 

35

35 

34 

34 

33 

31

28 

30 

30 

28 

27

27 

23 

21 

2T 

18

18 

27 

19 

17 

15

14 

13 

13 

12 

11 

9.8

Aug.

9.8 

9.4 

9.4 

11 

15

11 

13 

15 

9.8

10

12 

12 

14 

11 

9.1

8.8 

13 

14 

15 

14

11

16 

13 

10 

9.4

8,8 

8.4 

9.4 

7.7 

9.4 

?.4

Mean

5.93 

6.82 

5.85

24.8

4.93 

4.32 

7.58 

33.8 

149 

93.7 

25.8 

11.2 

10.1

30.1

Sept.

6.8 

6.8 

6.5 

6.5 

6.2

9.1

10 

8.0 

12 

29

30 

19 

14 

12

10

9.8 

9.8 

9.4 

9.1 

8.8

8.0 

7.4 

7.0 

7.0 

6.8

6.5 

6.5 

6.5 

6.5 

6.8

Runoff in 

acre- feet

365 

406 

360

17,960

303 

240 

466 

2,010 

9,180 

5,570 

1,580 

690 

599

21,770

* Winter discharge measurement made on this day.

Note.- Stage discharge relation affected by ice Nov. 3-5, 7, 9-14, L5-20, 2 , 2!, J', D?e, 1-4, 

8-17, Mar. 21-27. No gage-height record Dec;. 18 to Mar. 20 (stace-discharge relation affected by 

ine entire period); discharge computed on basis or 4 discharge measurements and weather records.
GUNNISON RIVER BASIN 123

Smith Fork near Crawford, Colo.

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 1947. (April 

Ib3fc> to September 1940 in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 324 second-feet May 6 (gage height, 3.50 feet), 

rrom rating curve extended above 160 second-feet; minimum daily, 3.4 second-feet Dec. 

18.

1941-44, 1945-47: Maximum discharge, 513 second-feet May 13, 1941 (gage height, 

3.80 feet), from rating curve extended above 430 second-feet; minimum daily, 2.0 

second-feet Feb. 11, 1941.

Remarks.- Records fair. A few small diversions above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

R

7

8

9

10

11

12

13

14

15

Ifi

17

18

19

20

21

2?

23

24

25

2R

27

2S

29

30

31

Oct.

9.2

11

12

11

11

10

1111

11

10

9.5

8.6

9.5

9.2

9.2

9.5

11

9.8

9.5

9.5

9.5

9.5

9.5

9.5

9.2

8.9

9.2

9.5

10

11

10

Nov.

9.8

9.2

8.9

8.9

8.9

8.9

8.6

8.9

8.9

8.6

8.0

8.0

8.3

8.3

8.3

8.2

8.2

8.2

8.2

8.0

*7.9

7.8

8.0

8.0

8.0

7.4

7.6

8.2

7.8

7.4

-

Dec.

7.2

6.8

6.8

6.8

6.8

6.8

7.0

S.4

5.8

5.2

.7

. .7

.7

 .5

.3

.1

.8

* .4

.5

.7

.8

.8

.9

.0

. 2

.4

.6

' .4

.2

3.7

3.7

Jan.

3.8

3.9

.0

.1

.1

.0

.3

.5

.6

.6

.8

.8

.8

.6

.6

.6

.7

4.9

5.0

5.0

5.2

5.4

*5.4

5.6

5.6

5.6

5.4

5.4

5.4

5.0

5.0

Feb.

5.3

5.6

5.8

5.9

5.9

5.9

5.9

6.0

6.2

6.3

6.3

6.2

6.2

6.1

6.0

6.1

6.4

7.0

7.3

7.6

*7.6

7.2

7.2

6.6

7.0

*6.8

6.8

7.3

_

_

-

Month ,

December .............. ....................

Calendar year 1946 ......................

May.......................................

September. .............. ..................

Water year 1946-47 ....... ........ .....

Uar.

.0

.8 1 .3

.0

.2

.2 ' .2

' .2

.3

.3

.3 ' .3

.6

8.6

8.6

9.5

*11

12

14

17

19

26

25

20

19

15

14

15

18

20

20

Apr.

20

21

23

22

17

15

15

15

16

15

14

14

14

23

37

46

51

56

55

62

84

102

113

96

78

78

97

88

79

86

-

Seoondfoot-days

249 4

151.7

12,481.0

1 452

1 2°5

473

13,592.0

May

128

208

274

288

288

292

272

252

212

234

228

186

157

148

140

128

117

134

142

155

165

165

153

106

90

95

93

88

60

44

42

Maximum

7.2

237

28

292

June

40

48

61

92

68

60

76

95

100

79

77

64

58

82

106

123

123

125

88

90

167

246

252

232

210

190

161

137

108

88

-

Minimum

3.4

3.4

12

3.4

July

77

76

76

71

71

77

74

61

54

48

44

40

39

36

33

32

30

29

26

24

23

23

23

22

20

19

18

16

15

14

14

Aug.

13

13

12

16

20

16

17

17

15

16

19

16

16

15

14

14

16

18

18

17

16

20

18

16

16

15

14

14

14

14

13

Mew

4.89

34.2

39 5

15.8

37.2

Sept.

12

12

12

12

12

13

13

12

14

28

28

22

20

18

18

18

18

18

18

17

16

15

14

14

14

13

13

13

13

13

-

Runoff in 

acre feet

495

301

24,760

295

938

26,960

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 11 to Dec. 30, Mar. 1, 2, 5-8, 10, 13. Ho 

gage-height record Dec. 31 to Feb. 25 (stage-discharge relation affected by Ice most of period); 

discharge computed on basis of 2 discharge measurements and weather records.
124 GUNNISON RIVER BASIN

East Muddy Creek near Bardine, Colo.

Location.- Water-stage recorder, lat. 39°01' , long. 107°22', In sec. 17, T. 12 S., R. 

b9 w., a quarter of a mile downstream from Spring Creek, and 65- miles 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 1947 (no winter records 1935-41).

Extremes.- Maximum discharge during year, 1,460 second-feet May 5 (gage height, 2.57 

J'eet), from rating curve extended above 400 second-feet on basis of shape of former 

curve defined to 800 second-feet; minimum dally, 6.5 second-feet Dec. 19.

1935-47: Maximum discharge, 2,190 second-feet May 13, 1941 (gage height, 3.41 

feet), from rating curve extended above 800 second-feet; minimum dally, 6 second-feet 

Aug. 28, 1936.

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

wnich are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1347

Day

1

2

3

4

5

6

7

8

9

10

11

1?.

13

14

15

16

17

18

19

20

21

22

23

24

25

2fi

27

28

29

30

31

Oct.

9.6

11

14

13

14

14

16

15

14

14

14

14

13

12

12

12

*16

15

12

12

13

12

12

12

12

11

12

14

25

25

16

Nov.

14

14

14

14

14

12

13

14

14

14

11

12

14

14

15

13

11

13

14

*16

17

14

16

17

14

15

15

16

16

15

-

Dec.

16

17

14

16

16

17

17

16

15

10

13

17

16

15

14

13

»7.4

7.0

6.5

13

12

12

13

13

13

13

14

11

10

11

11

Jan.

12

12

13

12

12

12

12

12

12

12

12

13

12

12

12

12

12

13

13

12

11

11

12

»12

12

12

12

12

11

11

12

Feb.

11

12

13

13

13

13

13

13

15

16

16

15

17

17

17

18

19

20

19

»18

18

20

19

18

16

17

18

16

_

_

-

Month

December ...................................

Calendar year 1946 ................. ....

March. .................................. .

April. .....................................

May. .......................................

September ..................................

Water year 1946-47 ......................

Mar.

11

16

17

18

19

18

18

17

18

19

19

18

18

20

22

24

28

»45

56

60

68

72

66

48

40

43

54

62

86

98

83

Apr.

79

95

79

60

43

36

41

43

*60

46

41

31

40

72

105

112

120

145

125

152

226

285

266

216

186

186

226

202

186

223

-

Secondfoot-days

425

408.9

22,453.1

372

758

35,669.5

May

404

670

952

1,080

1,130

1,080

1,110

1,070

1,020

912

896

593

495

448

442

474

442

436

388

418

436

413

382

305

310

310

295

305

232 188'

185

Maximum

17

471

285

58

48

1,130

June

176

170

194

280

224

194

204

245

255

220

260

236

208

240

232

216

216

212

216

216

352

325

285

232

212

200

197

194

185

179

-

Minimum

6.5

6.5

11

11

31

170

21

6.5

July

161

146

132

132

125

115

112

95

98

88

81

72

68

60

60

62

56

52

46

43

40

42

52

43

37

34

31

30

29

27

27

Aug.

29

30

30

32

37

37

32

31

30

34

42

52

58

43

37

37

37

58

38

34

34

37

35

32

32

29

29

28

29

29

28

Mean

13.2

61.5

25.3

97.7

Sept.

27

25

26

24

22

22

22

21

21

37

48

29

27

25

24

22

27

30

26

25

24

24

23

23

23

22

22

22

22

23

Runoff in 

acre-feet

811

44,540

1,500

70,750

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 3, 4, 11-14, Nov. 16 to Jan. 9, Mar. 18-23. 

No gage-height record Jan. 10 to Mar. 17 (stage-discharge relation affected by leq entire period); 

discharge computea on basis of 2 discharge measurements and weather records.
GUNNISON RIVER BASIN 125

North Fork Gunnison River near Somerset, Colo.

Location.- Water-stage recorder, lat. 38°56 I , long. 107°26', In sec. 10, T. 13 S.^R. 90 

w ., '6 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 1947.

Average discharge.- 13 years, 463 second-feet.

Extremes.- Maximum discharge during year, 3,830 second-feet May 7 (gage height, 4.72 

reet;; minimum daily, 33 second-feet Dec. 19.

1934-47: Maximum discharge, 5,850 second-feet May 13, 1941 (gage height, 6.30 

feet), from rating curve extended above 3,200 second-feet; minimum daily, 28 secondfeet Sept. 19, 1934.

Remarks.- Records excellent except those for periods of ice effect or no gate-height 

record, which are fair. Diversions above station for irrigation.

Rating tables, water -/ear 1946-47, except periods of ice effect

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

(Shifting-control method used Apr. 30 to Hay 3)

Oct. 1 to May 3 May 4 to Sept. 30

0.5 33 1.4 220 3.O 1,310

.7 57 1.7 355 4.0 2,540

.9 87 2.0 520 4.2 2,820

1.0 105 2.4 775

1.2 155 2.7 1,010

0.9 107 1.7 400 3.5 2,060

1.1 152 2.1 640

1.3 210 2.4 860 '

1.4 250 3.0 1,460

t.O 2,750

t.5 3,500

Discharge, in second-feet, water year October 1946 to September 194T

Day

1

2

3

4

5

6

7

8

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

79

110

94

100

9&

115

105

105

103

96

96

98

110

118

115

138

128

103

94

94

91

91

91

91

89

89

92

120

142

115

Nov.

94

96

74

84

84

81

71

85

84

81

64

70

92

92

100

79

64

71

76

*S4

98

82

92

110

82

85

90

96

94

89

-

Dec.

92

98

74

87

103

98

lol

92

31

51

68

101

91

77

74

71

 40

39

33

79

67

71

79

74

76

77

87

79

43

51

55

Jan.

60

64

66

62

58

64

64

62

60

60

60

60

62

58

56

56

60

62

62

60

60

62

64

»64

64

64

66

64

60

56

60

Feb.

58

68

72

70

70

68

68

67

67

72

70

68

74

72

70

74

78

SO

76

 73

70

81

76

74

68

 73

74

68

_

_

-

Month

October ....................................

November . ..................................

December . ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

45

65

71

74

79

74

71

68

74

74

74

71

70

85

84

87

112

161

192

213

240

252

256

185

150

158

170

202

224

260

248

Apr.

1

1

Seoond 

foot-days

3,179

2,544

2,309

125,046

1,900

1,999

4,189

14,256

67,120

45,930

18,369

5,899

4,397

172,091

213

260

260

216

173

155

158

158

213

185

173

142

138

206

372

410

448

514

498

616

874

060

040

906

733

733

866

812

754

970

-

May

1,510

2,110

2,790

3,160

3,290

3,350

3,440

3,350

3,320

3,100

3,120

2,330

1,930

1,810

1,750

1,730

1,700

1,760

1,750

1,880

1,960

2,030

1,890

1,550

1,590

1,710

1,730

1,730

1,400

1,180

1,170

Maximum

142

110

103

1,990

66

81

260

1,060

3,440

2,160

1,280

250

300

3,440

June

1,130

1,240

1,390

1,770

1,470

1,360

1,590

1,910

1,970

1,640

1,690

1,470

1,320

.1,360

1,330

1,370

1,480

1,460

1,520

1,650

2,160

1,960

1,710

1,460

1,390

1,480

1,480

1,450

1,390

1,330

-

Minimum

71

64

33

33

56

58

45

138

1,170

1 *204 130

145

115

33

July Aug.

1,280

1,220

1,180

1,240

1,100

1,030

970

820

796

745

668

610

556

520

526

508

442

412

380

365

340

335

350

325

280

255

238

238

226

210

204

Mean

103

84. t

74. E

343

61.2

71. 4

135

475

2,165

1,5T1.

5f3

IfO

1*7

471

204

195

186

195

250

204

195

189

189

218

210

218

218

195

180

172

192

226

192

174

174

250

207

180

172

160

152

147

147

163

145

Sept.

135

128

128

126

115

122

130

124

133

226

300

201

180

163

152

147

158

169

160

147

138

133

126

124

122

124

122

122

120

122

-

Runoff la 

ao re-feet

6,310

5,050

4,580

248,000

3,770

3,960

8,310

28 % 280

133,100

91 100

36 ! 430

11,700

8,720

341,300

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 27, Dec. 30 to Feb. 21 (no gaj-e-height record 

Jan. 1Z-23, Feb. 21; discharge computed on basis of weather records).
126 GUNNISON RIVER BASIN

Minnesota Creek near Paonia, Colo.

Location.- Water-stage recorder, lat. 38°52', long. 107°31', in sec. 1, T. 14 S., R. 91 

rf., naif a mile downstream from East Fork and 4| miles east of Paonia.

Drainage area.- 41.3 square miles.

Records available.- October 1941 to September 1947, discontinued. (April 1936 to June 

I941 in riles of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 147 second-feet May 11 (gage height, 2.33 feet); 

minimum daily, 2.3 second-feet Oct. 1.

1941-47: Maximum discharge, 270 second-feet May 22, 1942 (gage height, 3.70 feet), 

from rating curve extended above 150 second-feet: minimum daily, 1.4 seoond-feet Sept. 

17, 1946.

Remarks.- Records fair. One small storage reservoir and several small diversions above 

station for irrigation. One small diversion from Little Gunnison Creek in Coal Creek 

Basin to Minnesota Creek Basin.

Discharge, in second-feet, water year October 1946 to September 1917

Day

1

2

3

4

5

6

7

8

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

2.5

4.3

4.1

5.2

4.1

5.4

4.3

4.7

4.1

3.7

3.9

3.7

3.9

4.1

4.3

5.6

»4.3

4.1

4.1

4.5

4.1

3.7

3.7

3.5

3.5

3.7

3.9

7.1

6.3

5.6

Nov.

5.0

4.5

4.2

4.4

4.7

4.5

4.7

5.0

5.2

5.2

4.7

5.2

5.6

5.9

5.9

5.6

5.2

5.6

6.0

*6.6

6.3

6.3

6.6

6.6

6.6

6.0

6.0

6.2

6.3

6.3

-

Dec.

6.0

5.6

5.6

5.6

5.6

5.8

6.0

5.0

4.0

3.3

3.4

3.4

3.4

3.3

3.1

2.9

*2.8

2.7

3.0

3.1

3.2

3.2

3.2

3.2

3.2

3.5

3.9

3.3

2.9

2.5

2.6

Jan.

2.7

2.7

2.8

2.8

2.8

2.7

2.9

3.0

3.0

3.0

3.1

3.1

3.0

2.9

3.0

3.1

a3.1

a3.1

a3.1

a3.1

a3.1

a3.1

a3.1

*3.1

3.1

3.3

3.3

3.3

3.1

3.1

3.1

Feb.

2.9

2.9

3.1

3.1

3.1

3.3

3.3

3.2

3.2

3.5

3.5

3.4

3.6

3.7

3.8

a4.0

a4.1

a4.0

a3.9

*3.7

3.5

3.7

3.7

3.5

3.7

3.5

3.5

3.7

_

-

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May. ......:................................

September ..................................

Water year 1946-47 ......................

Mar.

3.5

3.5

, 3.5

3.7

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

4.5

3.9

3.9

5.9

7.3

*9.8

8.4

8.7

9.2

10

9.8

6.6

6.3

6.3

6.6

7.9

9.0

9.0

8.7

Apr.

8.4

9.2

9.2

8.4

7.3

7.1

6.8

6.3

7.1

6.3

6.1

5.9

5.9

8.2

11

11

12

16

15

17

28

33

30

29

23

21

23

24

22

27

-

Secondfoot-days

166.9

118.3

6,052.1

98.1

444.2

1,736

313.4

7,410.4

May

43

57

77

96

111

120'

131

129

124

132

140

129

114

104

95

90

85

88

90

93

90

89

88

77

72

72

74

77

65

58

56

Maximum

6.6

6.0

86

4.1

82

24

16

140

June

53

52

56

69

59

57

58

63

67

63

72

58

55

54

52

54

58

57

55

56

82

74

63

58

53

52

51

48

46

41

-

Minimum

4.2

2.E

1.4

2.9

6.1

2.3

July

35

34

35

34

32

26

24

22

20

16

ie

21

2C

19

19

2C

19ie

2C

2C

2?

23

24

2f

23

2E2c"

23

21

21

21

Aug.

20

20

19

22

23

20

20

20

19

21

21

21

21

22

22

20

22

21

20

20

19

24

12

6.6

6.3

6.6

5.6

5.6

5.6

13

17

Mean

5.56

3.82

16.6

10.4

20.3

Sept.

16

15

15

15

14

14

10

6.3

9.0

15

16

13

11

11

9.0

9.0

9.5

11

11

10

9.2

8.4

7.9

7.9

7.6

7.3

6.8

6.3

6.1

6.1

-

Runoff in 

acre-feet

331

235

12,000

3,440

622

14,690

Winter-discharge measurement made on this day. 

a Mo gage-height record; discharge computed on basis of weather records.

Note.- Stage-discharge relation affected by ice Nov. 3, 4, 7, 8, 11-13, 16-19, 24-30, Dec. 1-25, 

29-31, Jan. 1-16, Feb. 8-15, 21, Mar. 1-3.
GUNHISOH RIVER BASIN 127 

Leroux Creek near Cedaredge, Colo.

Location.- Water-stage recorder, lat. 38°55', long. 107°48', In sec. 16, T 13 S. R 93 

W772UO 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 1947 (no winter records 1936-46).

Extremes.- Maximum discharge during year, 1,110 second-feet May 8 (gage height 4 60 

I'eet), from rating curve extended above 650 second-feet; minimum dally recorded, 5.0 

second-feet Oct. 1, but may have been less during period of no recorc"

1936-47: 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 Dec. 8, 1939 (discharge measurement), Mar. 13, 1940 

but may have been less during periods of no record.

Remarks.- Records good except those for periods of no gage-height recorc", which are fair 

One small diversion and several small reservoirs above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

5.0

6.2

9.8

9.8

11

14

15

13

11

11

7.2

12

10

10

10

10

*10

9.8

6.8

9.0

28

22

16

13

9.5

9.8

11

12

20

16

11

Nov.

11

11

11

10

10

9.8

9.4

11

11

10

10

9.6

9.2

8.8

8.6

9.2

9.8

11

10

9.2

*8.4

8.6

9.2

11

10

8.0

8.5

9.0

9.8

10

-

Dec.

' 8.5

(*)

Jan.

 5.5

(*)

Feb.

L

. 5.5

(*)

_

_

-

Month

October .................................

November. ..................................

December. ..................................

Calendar year 1946 ........... ..........

January ............................. .... .

February ...................................

Harch. .....................................

April. ................................

Hay. ......................... .............

June ......... .............................

July ............... ....... ..........

Augu 

Sept

St. ................................ ...

ember. .................................

Water year 1946-4? .......... .... . ....

Mar.

5.3

5.3

5.4

5.3

5.3

5.4

5.4

5.4

5.5

5.5

5.5

5.5

5.4

5.4

5.3

5.3

*7.5

7.2

7.8

8.0

9.2

11

11

10

8.6

8.8

9.2

9.8

11

11

11

Apr.

10

10

10

10

10

11

11

*12

12

11

11

9.5

12

24

52

90

110

65

71

88

119

124

112

109

85

77

92

87

75

82

-

Secondfoot-days

368 . 9

292 . 1

263.5

_

170.5

154.0

1,601.5

9 052

4^482

1,471

905 

658

19,645.8

May

128

198

302

360

404

468

414

508

580

526

472

247

226

218

226

223

226

238

282

332

352

324

271

223

235

235

205

195

152

138

144

Maximum

28

11

.

11

124

580

244

64

40 

34

580

June

138

152

166

226

178

156

178

200

178

144

156

150

166

180

144

127

122

113

104

100

244

225

212

164

124

104

93

86

79

73

Minimum

5.0

8.0

.

5.3

9.5

73

38

23 

10

_

July

64

57

54

53

46

45

56

52

59

60

53

49

46

45

46

48

52

50

45

43

44

44

45

43

40

39

39

38

38

39

39

Aug.

39

39

36

36

36

34

32

36

40

31

29

26

25

24

24

23

28

28

24

23

25

35

29

25

23

25

28

26

25

27

24

Mean

11.9

9 .74 

8.5

5.5

5.5

7.33

292* 53. 4

149 

47.5

29.2 

21.9

53.8

Sept.

24

26

26

26

24

24

24

23

25

34

31

27

25

24

22

22

26

28

25

23

21

20

18

16

16

14

12

11

11

10

Runoff in 

acre- feet

579 

523

.

305

451

3,180

17,950

2, *920

1,800 

1,310

38,980

* Winter discharge measurement made on this day.

Note.- No gage-height record Oct. 5, 14-16, Nov. 2 to Mar. 16, Mar. 25 to Apr. 7, Apr. 16-18 

(atage-discharge relation affected by ice during most of periods), June 22, Aug. 6-9; discharge 

computed on basis of 4 discharge measurements, weather records, and records for stations on nearby
128 GUMISON RIVER BASIN

Surface Creek near Cedaredge, Colo.

Location.- Water-stage recorder, lat. 38°59', long. 107°51', in NW£NW£ sec. 25, T. 12 S., 

R. 94 W., 1 mile downstream from Caesar Creek and 8j miles northeast of Cedaredge.

Drainage area.- 28.5 square miles.

Records available.- June 1939 to September 1947 (no winter records 1939-46).

Extremes.- Maximum discharge during year, 410 second-feet May 3 (gage height, 3.05

feet), from rating curve extended above 300 second-feet; minimum observed, 2.5 secondfeet Feb. 19 (discharge measurement), but may have been less during period of no gageheight record.

1939-47: Maximum discharge, 578 second-feet May 12, 1941 (gage height, 3.62 feet), 

from rating curve extended above 300 second-feet; minimum observed, that of Feb. 19, 

1946.

Remarks.- Records good above 100 second-feet and fair below except those for periods of 

no gage-height record, which are poor. Discharge regulated by many small reservoirs.

Discharge, in second-feet, water year October 1946 to September 194-7

Day

1

2

3

4

5

6

7

8

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

21

22

16

16

17

16

15

14

14

17

15

14

14

14

14

14

13

15

15

14

14

15

16

17

13

13

20

23

16

14

Nor.

15

11

10

9.2

8.4

8.5

8.0

9.9

9.4

9.0

8.8

8.6 a.4

8.4

8.3

a.5

9.0

10

 10

7.8

7.6

7.6

7.0

3.5

7.0

6.5

6.7

6.9

7.2

7.4

-

Dec.

7.2

7.4

7.6

7.2

7.0

7.0

7.0

7.0

6.6

6.4

6.8

7.2

7.4

7.2

7.0

 7.0

6.6

6.2

6.0

6.0

6.2

6.4

6.4

6.4

6.6

7.0

7.4

7.0

6.6

6.0

5.6

Jan.

1 5.5

(«)

Feb.

. 4.0

(«)

_

_

-

Month

October . ...................................

November . ..................................

December . ..................................

Calendar year ......................

January. ................................. .

February. ........................... ......

March. .....................................

April ......................................

Hay. .......................................

June .......................................

July...... .............................. ..

August .....................................

September ..................................

Water year 1946-47 ............ .........

Mar.

( )

 5.0

Apr.

7.5

8.0 8.5

a.o

8.0

a.5

9.2

*10

11

10

10

13

12

15

27

39

53

51

48

34

116

114

92

69

56

53

76

66

55

73

-

Secondfoot-days

499

253.6

209.4

_

170.5

112.0

155.0

1,215.7

5,463

4,065

3,099

1,796

1,394

18,437.2

May

134

210

248

220

205

212

205

210

185

138

171

149

139

134,

132

153

168

166

166

168

202

208

185

168

160

171

171

178

157

149

151

Maximum

23

15

7.6

_

_

116

248

195

136

98

77

248

June

144

133

145

172

153

1.58

138 142

142

134

136

140

136

138

126

109

95

100

107

105

195

192

190

164

145

128

116

107

93

92

-

Minimum

13

6.

5.

_

_

_

7.!

132

92

79

30

26

-

July

8f

8F

90

100

90

97

1DC

ilf

12?

IIP

11?

10*

lor

107

10f

ise

134 lie 11?

95

9?

87

84

81

84

9C

9?

7S

8?

97

9C

Aug.

79

87

84

65

60

55

51

68

71

93

74

46

40

32

30

39

43

46

44

55

58

92

79

53

44

48

48

49

48

56

54

Me-m

16.1

> 8.62

5 6.75

-

5.5

4.0

5.0

5 40.5

176

136

no

57.9

46.5

50.5

Sept.

53

58

58

69

76

77

76

55

53

76

68

49

40

39

38

32

31

38

42

36

34

32

32

42

44

33

32

27

26

23

Runoff in 

acre-feet

990

513

415

-

338

222

307

2,410

10,840

8,060

6,150

3,560

2,760

36,560

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 3-4, 6-7, Nov. 9 to Dec. 12. No gage-height 

record Dec. 13 to Apr. 7 (stage-discharge relation affected by Ice during most of period); discharge 

computed on basis of 4 discharge measurements and weather records.
GUNNISON RIVER BASIH 129

Surface Creek at Cedaredge, Colo.

Location.- Water-stage recorder and concrete control, lat. 38°52', long. 107°55', in 

 see, 20, T. 13 S., R. 94 W., at Cedaredge.

Drainage area.- 43 square miles.

Records available.- May 1917 to September 1927 and October -1933 to September 1947 in

reports or ueoiogical Survey. May 1917 to September 1947 In reports of State engineer.

Average discharge.- 30 years, 30.1 second-feet.

Extremes . - Maximum discharge during year, 274 second-feet June 21 (gage height, 1.38 feet); 

minimum observed, 0.7 second-foot Feb. 19 (discharge measurement), but may have been 

less during period of no gage-height record.

1917-47: 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 some winters.

Remarks . - Records good except those for periods of no gage-height record, which are fair. 

Flow regulated by many reservoirs. Water is diverted into Surface Creek r^sin from 

nearby streams. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

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.

6.0

6.S

8.8

8.2

9.0

10

IS

12

11

13

10

10

10

9.4

no

11111111

10

101111

12

12

13

IS

14

16

12

10

Nov.

4.5

(*)

-

Dec.

. 2.5

Jan.

 2.0

(*)

Feb.

 1.5

(*)

-

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April.. ....................................

May. .......................................

June .......................................

July................ .......................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

(*)

2.0

Apr.

3.4

3 j

3.4

3.8

3.3

3.8

4.2

*4.4

5.0

4.4

3.9

2.2

3.4

11

26

40

45

46

39

63

89

89

67

49T

43

42

54

47

41

46

-

Secondfoot-days

336 .9

135.0

77.5

5,584.3

0

42 .'o

Qfifi "o

3 , 621

2 ,626

1,145

671

517

10,181.4

May

94

142

170

194

178

157

144

135

132

144

120

102

95

89

89

111

118

118

118

111

135

132

106

79

85

99

93

104

81

74

72

Maximum

16

_

83

89

194

64

60

35

203

June

66

69

77

129

91

74

72

85

93

81

a89

97

97

93

67

51

43

61

83

83

203

174

168

106

77

61

66

61

51

58

Mininum

6.0

-

_

2.2

72

43

12

14

10

_

July

61

57

58

64

55

50

51

51

S3

51

46

39

35

37

36

43

40

37

37

28

26

21

18

22

21

17

12

12

16

25

26

Aug.

20

22

21

22

22

23

28

18

15

60

41

22

16

15

16

17

16

18

15

15

17

40

32

26

22

18

14

15

16

19

16

Meai

10.9

4.5

2.5

15.3

2.O

1.5

2.0

29*5

117

87 .5

3?. 9

21 .6

17.2

27.9

Sept.

16

15

12

IS

15

18

18

19

21

35

34

23

22

22

22

19

19

18

18

15

11

10

10

12

12

12

11

12

15

16

Runoff in 

acre-feet

668

268

154

11,080

123

83

123

1,76O

7,180

5,210

2,270

1,330

1,030

20,200

Winter discharge measurement made on this day. 

a a No HO gage-height gage-ne.Lgni; record; recora; discharge aiscnarge Interpolated. interpolated.

Note.- No gage-height record Oct. 19 to Apr. 7 (stage-discharge relation proba 

during 'most of period); discharge computed on basis of 5 discharge measurements, 

and records for stations on nearby streams.

ibly affected by ice 

weather records,
130 GUNNISON RIVER BASIN

Surface Creek at Eckert, Colo.

Location.- Water-stage recorder, lat. 38°50' long. 107°58', in SE-q- sec. 14, T. 14 S., R. 

9fa W., 0.5 mile southwest of Eckert and 2-5- miles upstream from mouth. Prior to Sept. 

25, 1946, recorder at site 1,000 feet upstream at different datum (records equivalent).

Drainage area.- 55 square miles.

Records available.- April 1942 to September 1947.

~Extremes.- Maximum discharge during year, 262 second-feet June 21 (gage h^i^it, 4.09 feet); 

minimum daily, 0.3 second-foot Feb. 27 to Mar. 30, Apr. 1-14.

1942-47: Maximum discharge observed, 466 second-feet May 15, 1944 (gage height, 

4.06 feet, site and datum then in use), from rating curve extended above 150 secondfeet; no flow Apr. 14, 15, 1946.

Remarks.- Records good above 10 second-feet, fair between 3 and 10 second-feet, and poor 

below 3 second-feet. Many diversions above station for irrigation.

Discharge, in second-feet, water year October 1945 to September 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.

0.6

.9

3.6

4.6

5.8

2.6

1.5

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.8

.7

.7

.6

.6

.6

.7

Nov.

0.7

.9

.7

.7

.7

.7

.6

.9

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

.8

.8

.8

.9

.9

.9

1.2

3.8

2.6

1.7

1.5

-

Dec.

1.5

1.2

1.1

1.4

1.0

.9

.9

1.0

.9

.7

1.0

1.1

.8

.9

.6

.6

.6

.5

.5

.5

.5

.5

.4

.5

.4

.5

.5

.5

.5

.5

.5

Jan.

0.6

.6

.7

.7

.8

.9

1.0

.9

1.1

1.4

1.7

1.7

1.1

.9

.8

.8

.7

.5

.5

.6

.7

.7

.7

.8

1.2

1.2

1.4

1.4

.7

.9

1.1

Feb.

1.1

.8

.9

.8

.8

1.1

1.1

.8

1.1

1.4

1.4

1.1

1.2

1.1

1.2

1.2

1.0

.6

.6

.6

.5

.5

.5

.5

.5

.4

.3

.3

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

May. ........... ...........................

July... ....................................

September ...... ...........................

Water year 194R-47 ......................

Mar.

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

.3

.3

.6

Apr.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

7.0

9.2

4.1

9.2

3.6

20

39

14

1.5

.7

.8

.8

7.7

7.0

5.1

11

-

Secondfoot-days

23.0

622.6

28

59.4

1,384.7

May

25

44

64

56

38

23

5.4

3.4

3.8

16

6.7

3.6

2.0

2.0

1.8

4.3

12

14

12

6.1

23

6.1

.9

1.5

7.0

14

11

13

4.1

2.9

4.1

Maximum

1.5

16

12

102

June

1.1

1.5

4.8

31

2.2

2.2

4.3

6.1

3.1

1.5

10

14

22

14

.6

.6

.6

6.7

23

13

102

54

78

41

18

4.6

3.1

3.1

7.8

3.1

-

Minimum

.4

0

g

.9

.3

Jul-r

1.4

1.8

2.2

8.0

1.7

1.8

10

4.3

7.0

7.4

1.4

.9

.8

1.4

.9

6.4

1.2

.7

.7

.7

.7

.7

.7

.7

.7

1.4

1.0

.6

.6

.6

.6

Aug.

0.6

.6

.5

.7

.6

.7

.6

.6

3.1

2.9

1.8

.5

.4

.4

.4

.4

.4

.9

.7

.7

.7

8.0

2.0

3.6

4.6

2.4

3.4

3.8

a2.0

al.6

al.6

Mean

.74

1.71

93

2 23

1.98

3.79

Sept.

al.6

al.6

al.E

al.5

al.5

al.6

al.7

1.8

4.1

12

5.8

1.7

1.4

1.2

1.4

1.4

1.4

1.7

1.5

1.2

1.4

1.7

1.5

1.4

1.0

1.0

.9

.9

.9

1.0

-

Runoff in 

ao re-feet

46

1,230

118

2,750

a No gage-height record; discharge computed on basis of records for stations on nearby streams.
GUNNISOW RIVER BASIN 131 

Ward Creek below Kiser Creek, near Cedaredge, Colo.

Location.- Water-stage recorder, lat. 38°53', long. 107°58', in SE£ sec. 26, T. 13 S., R. 

95 W., 1 mile downstream from Kiser Creek and 3 miles southwest of Cedarsdge.

Drainage area.- 57.8 square miles.

Records available.- September 1944 to September 1947.

Extremes.- Maximum discharge during year, 139 second-feet July 9 (gage height, 3.33 feet), 

from rating curve extended above 80 second-feet; minimum daily, 1.9 second-feet Oct. 1. 

1944-47: Maximum discharge, 139 second-feet May 11, 1945, July 9, 1947, from rating 

curve extended above 80 second-feet; maximum gage height, 3.34 feet May 11, 1945; no 

flow July 14-17, 1946.

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

which are fair. Many diversions and small storage reservoirs above station for 

irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

1.9

2.1

2.2

3.3

4.1

4.4

3.9

3.7

3.9

3.7

3.7

4.1

3.9

3.7

3.5

3.5

4.6

6.5

6.5

6.7

6.5

6.2

5.8

5.3

5.5

5.8

5.8

7.0

8.0

7.6

7.2

Nov.

7.0

6.8

6.7

6.5

6.2

6.2

5.5

6.5

6.2

6.0

6.0

5.5

5.5

5.3

5.2

6.0

6.6

7.4

7.2

6.0

5.8

5.5

6.5

8.3

5.8

4.8

5.3

5.7

6.0

6.6

-

Dec.

6.4

6.4

6.4

6.0

5.8

5.8

5.8

6.0

5.8

5.0

5.5

5.5

5.8

5.3

5.5

*5.3

5.0

b4.7

b4.5

b4.8

5.0

5.0

5.0

5.0

5.3

5.8

6.5

5.8

5.3

b4.4

b4.0

Jan.

b4.2

b4.4

b4.8

b5.2

b5.6

6.0

5.0

3.9

5.3

5.3

5.5

5.5

5.5

5.3

b4.5

b3.8

3.8

4.2

4.4

4.7

5.0

5.3

5.6

6.0

6.4

6.4

*6.2

6.5

6.5

b4.5

b4.5

Feb.

b4.8

b5.2

b5.6

b6.2

b7.0

b7.3

7.5

7.8

7.8

8.0

7.8

7.2

7.8

9.2

9.2

8.3

7.8

7.8

*7.0

7.0

7.0

7.0

7.0

7.2

6.7

7.2

6.7

6.0

_

_

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

6.5

5.8

6.5

6.2

6.2

6.0

5.5

5.8

6.0

5.8

5.8

5.8

5.8

5.8

5.5

5.3

7.5

8.0

8.3

8.9

8.0

9.2

9.4

7.2

6.7

7.5

8.0

8.6

8.9

10

9.4

Apr.

7.5

8.6

8.3

7.0

5.8

4.6

4.8

3.9

4.6

3.7

2.8

2.6

3.0

3.9

4.4

6.7

8.6

4.8

5.5

10

10

5.5

3.9

3.0

2.2

4.1

4.1

4.1

5.3

10

-

Secondfoot-days

150.6

184.6

168.4

1,581.2

159.8

201.1

219 . 9

163.3

785.1

499.0

229 4

210! 9

192.0

3,164.1

Hay

25

49

58

64

67

62

79

54

43

38

31

25

19

18

19

21

20

19

16

8.3

6.0

6.0

5.8

5.3

4.4

3.5

3.0

3.7

4.1

3.9

4.1 -

Maximum

8.0

8.3

6.5

11

6.5

10'9.2

10

79

61

22

8.9

9.4

79

June

4.4

4.8

5.3

14

11

6.5

5.5

5.8

5.5

5.5

7.8

15

14

13

12

10

8.6

9.2

9.2

7.5

54

61

54

45

37

25

18

14

9.4

7.0

-

Minimum

1.9

4.8

4.0

0

3.8

4 .£

5.3

2.2

3.0

4.4

4 .fi

4.6

4.6

1.9

July

5.5

4.8

6.0

7.0

6.2

6.7

7.5

6.0

22

16

8.6

6.7

6.7

6.5

7.0

8.6

8.3

8.0

7.2

7.0

6.7

7.0

7.0

6.0

5.5

5.8

5.8

6.0

6.0

5.5

5.8

Aug.

5.3

4.8

4.8

6.5

6.5

5.5

5.3

5.5

5.8

6.2

6.5

6.5

6.5

6.5

6.7

7.0

8.3

8.9

7.8

7.0

7.0

8.9

8.6

8.0

7.5

7.0

7.5

7.0

6.5

8.3

6.7

Mean

4.86

6.15

5.43

4.33

5.15

7 . 18

7.09

5.44

?5.3

16.6

7.40

6.80

6.40

8.67

Sept.

6.2

5.8

5.5

5.3

5.0

5.3

5.3

5.5

6.2

8.9

9.2

9.2

9.4

9.2

8.9

7.0

7.8

7.2

6.7

6.5

6.0

6.0

6.0

5.3

5.0

4.6

4.6

4.8

4.8

4.8

-

Runoff in 

acre-feet

299

366

334

3,140

317

399

436

324

1,560

990

455

418

381

6,280

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Oct. 5-7, Oct. 28 to Nov. 3, Nov. 15-18, Nov. 27 to I>c. 4, Jan. 17-26 

(stage-discharge relation probably affected by ice during part of periods), May 15-19, June 14-16! 

discharge computed on basis of weather records and records for stations on nearby streams.
132 GUNNISON RIVER BASIN

Uncorapahgre River at Colona, Colo.

Location.- Water-stage recorder, lat. SS'ig'SO", long. 107°46'40", In NW$ sec. 17, T. 47 

 N., H. 8 W., a quarter of a mile east of Colona. Datum of gage is 6,321.80 feet above 

mean sea level, datum of 1929.

Drainage area.- 437 square miles.

Records available.- March 1935 to September 1947. April 1903 to June 1906, April 1917 

to Movemoer j.934 at site 3 miles upstream.

Average discharge.- 31 years (1904-5, 1917-47), 291 second-feet.

Extremes.- Maximum discharge during year, 1,790 second-feet June 21; maximum gage height, 

3.72 reet July 15; minimum daily discharge, 45 second-feet Mar. 1.

1903-6, 1917-47: Maximum daily discharge, 4,080 second-feet June 13, 14, 1921; 

minimum daily, 16 second-feet Sept. 3, 1918.

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

whicn are fair. Diversions above station for irrigation.

Cooperation.- Gage heights and most discharge measurements furnished by Uncomp'ahgre 

valley water Users' Association.

Discharge, in second-feet, water year October 1946 to September 1947

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.

78

81

92

96

132

112

145

135

140

128

112

123

130

123

125

123

130

128

112

114

116

110

106

1O2

104

104

104

102

132

130

123

Nov.

108

118

106

108

108

118

114

123

118

110

98

104

110

112

114

102

10O

106

1O8

114

112

112

114

125

114

90

114

114

114

112

-

Dec.

104

106

98

98

104

 104

104

85

70

67

70

90

88

88

87

87

72

70

57

b65

73

76

87

83

81

81

85

79

63

57

 64

Jan.

58

6466^

66

78

83

96

96

98

96

96

102

98

98

92

72

68

b72

b78

b78

b78

b80

b82

b80

b80

b80

b78

76

72

 61

72

Feb.

a70

a69

a65

a62

a6O

a6O

a62

a64

a6O

a68

67

64

66

66

72

81

79

72

64

67

 58

66

64

64

58

63

63

63

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

Uav

July

September. .................................

Water year 1946-47 ......................

Mar.

45

48

60

64

61

60

63

61

67

64

68

68

67

74

76

79

108

137

150

150

152

168

152

114

100

106

104

123

120

112

137

Apr.

112

130

145

125

102

90

100

92

98

94

94

83

79

106

147

158

165

220

198

234

333

337

277

289

201

2O4

277

297

230

269

-

Secondfoot-days

3 592

2,543

76,917

7,940

106,858

May

475

694

836 9O8"

892

914

836

831

908

716

660

506

485

425

386

337

305

305

325

395

512

616

584

381

390

528

567

606

440

386

480

Maximum

106

1,040

572

435

1,570

June

470

638

787

748

606

622

1.O2O

1,320

1.47O

1,350

1,230

1,020

765

672

699

919

1,050

974

776

1,070

1,670

1,140

941

875

919

1,070

1,110

1,120

1,100

1,110

-

Minimum

57

57

142

45

July

1,040

958

958

990

914

820

963

875

897

836

765

6P2

594

534

9f2

7F5

era

srs

518

4fO

445 se2

5C1

430

361

350

313

2S7

262

224

192

Aug.

186

163

150

192

297

217

204

211

217

317

337

297

345

363

321

281

430

475

410

410

372

572

572

445

376

354

372

368

372

480

363

Mean

82. 0

211

265

293

Sept.

390

345

317

285

258

265

237

214

214

386

435

354

317

297

273

254

254

281

325

297

265

244

230

2O8

195

180

171

155

152

142

-

Runoff in 

ao re-feet

5,040

152,600

15,750

211,900

* Winter discharge measurement made on this day. 

a No gage-height record (stage-discharge relation probably 

computed on basis of weather records.

b Stage-discharge relation affected by ice.

affected by ice durin3 period); discharge
GUNNISON RIVER BASIN 133

Uncompahgre River at Delta, Colo.

Location.- Water-stage recorder, lat. 38°45', long. 108°05', in SW£ sec. 13, T. 15 S., R. 

9b W., at west edge of Delta, l£ 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 1947. April 1903 to October 1923 at site 3^ miles upstream.

Extremes.- Maximum discharge recorded during year, 2,180 second-feet July 16 (gage height, 

5.U9 feet), but may have been higher on June 21 during period of no gage-height record; 

minimum daily, 35 second-feet Mar. 15.

1903-31, 1938-47; Maximum discharge recorded, 3,730 second-feet May 5, 1941 (gage 

height, 5.90 feet), 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, 

wnich are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2b

26

27

28

29

30

31

Oct.

252

241

241

290

242

254

390

470

464

448

431

431

458

448

426

442

502

458

426

380

358

354

306

283

338

318

276

272

283

306

298

Nov.

302

370

448

442

453

475

486

519

519

514

497

262

269

266

276

266

248

258

272

276

272

262

272

276

290

269

252

211

205

211

-

Dec.

202

187

157

163

157

160

160

152

143

130

122

118

127

122

108

118

110

98

86

92

90

88

92

94

98

104

110

106

79

65

64

Jan.

88

*92

94

74

84

90

92

86

86

75

75

90

98

88

84

83

75

92

106

115

100

100

92

96

120

118

122

tll8

blOO

*b80

b98

Feb.

blOO

b98

b94

b90

b92

b98

bllO

102

98

106

110

100

100

102

100

106

110

108

104

*94

83

72

54

51

47

48

51

57

_

_

-

Month

December. ............. ....................

Calendar year 1946 ......................

February

March. .....................................

May........................................

September. ................ ................

Water year 1946-47 ......................

Mar.

51

50

48

48

48

47

43

84

178

115

59

48

38

36

35

44

160

208

234

214

208

238

196

190

152

132

160

154

172

248

255

Apr.

217

244

230

262

17S

184

178

169

166

146

110

106

94

86

77

83

74

106

115

149

169

211

187

169

130

96

146

220

187

140

Second 

foot-days

3,702

100,664

16,491

127,399

May

238

475

709

96S

680

722

771

614

701

604

644

495

359

274

281

 284

256

246

274

270

347

570

447

355

264

327

359

460

452

343

327

Maximum

202

1,000

1,070

1,8OO

June

343

406

609

844

694

495

668

1,210

1,440

1,330

1,330

1,520

778

442

650

996

1,250

860

545

510

al,800

al , 60O

al,150

a955

948

1,240

1,110

1,040

828

860

-

Minimum

241

20E

64

47

74

311

3E

July Aug .

565 141

393 137

545 133

582 168

530 550

367 388

592 323

609 367

694 367

587 848

490 650

434 475

359 680

299 743

565 609

1,290 565

694 620

500 785

393 609

339 525

288 470

281 620

475 956

335 701

246 582

201 540

178 545

180 460

178 456

165 620

150 560

Mean

358

351

119

276

126

550

3*9

Sept.

535

475

402

351

335

420

587

485

495

9OO

1,070

S76

792

778

736

662

604

620

604

604

56O

515

465

429

380

311

343

367

388

402

Runoff in 

acre-feet

21,990

19,710

7,340

199,700

5,770

4,930

7,720

28,000

26,780

32,710

252,700

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of unpublished records for station below 

Garnet ditch head gate.

b Stage-discharge relation affected by Ice.
134 GUNNISON RIVER BASIN

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., half a mile upstream from mouth and 5 miles west of Delta. Datum of gage is 

4,869.20 feet above mean sea level, datum of 1929.

Drainage area.- 245 square miles.

Records available.- March 1939 to September 1947.

Extremes.- Maximum discharge during year, 806 second-feet Sept. 6 (gage height, 3.88 

'feet); minimum daily, 22 second-feet Mar. 23.

1939-47: Maximum discharge, 2,950 second-feet Aug. 5, 1945 (gage height, 7.76 

feet), from rating curve extended above 1,300 second-feet; minimum daily, 17 secondfeet 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 1946 to September 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.

114

112

112

133

140

133

138

131

133

133

133

138

131

131

140

143

133

127

120

108

106

94

96

93

67

78

69

70

74

67

63

Nov.

66

64

66

61

59

60

67

74

84

85

84

82

87

80

84

82

85

91

89

91

93

87

87

82

93

80

75

70

66

60

-

Dec.

56

54

60

58

54

 59

61

61

61

54

49

66

74

63

70

67

63

52

49

67

67

66

67

72

74

74

74

70

60

b40

b44

Jan.

a40

»b41

b43

a45

a47

a50

b49

b49

b50

b50

b49

45

43

45

45

a43

a40

a44

a45

a45

a45

a46

a45

b46

b46

b45

b41

b38

b39

*b35

b39

Feb.

44

39

37

37

37

35

35

31

31

40

43

43

44

45

46

47

45

43

43

 55

51

56

46

47

41

39

43

41

_

_

-

Month

October ....................................

November ....................... . . . .

December .............. ....................

Calendar year 1946 .....................

January ............................ ..... .

February ..................... ...... .....

March. .......................... . .....

April ......................................

May.. ............................. ........

June ......................... ............

July. ..................... ... ....... ....

August ........................ ..........

September. ................ . . ............

Water year 1946-47 ... . . . ....... ....

Mar

37

37

37

37

30

27

25

24

41

36

30

24

24

24

24

24

36

37

41

40

40

36

22

36

61

54

49

47

40

38

36

Apr.

40

32

34

39

55

58

49

36

35

43

44

63

50

45

59

96

120

156

180

211

320

398

338

345

274

244

238

252

244

238

-

Secondfoot-days

3,460

2,334

1,906

33,804

1,373

1,184

1,094

4,336

8,540

4,032

1,923

3,080

4,081

37,343

May

317

464

560

576

544

502.

450

394

328

359

345

301

338

348

280

272

238

219

208

195

177

146

127

129

118

109

102

106

104

93

91

Maximum

143

93

74

376

50

56

61

398

576

203

96

164

310

576

June

102

102

98

149

169

169

169

167

159

141

127

136

167

129

122

77

74

71

86

93

195

190

188

203

188

164

136

111

85

65

-

Minimum

6

5

4(

3(

3

3

2

3

9

6

4

3

8

2

July

50

52

51

45

52

51

66

74

77

64

52

45

50

48

4<3

63

91

8?

71

61

6?

71

93

9.'

T\

635<5

53

47

53

50

Aug.

41

36

36

50

85

109

104

104

108

101

120

117

118

109

108

102

98

85

66

58

69

118

151

159

164

162

132

lol

77

98

94

Mean

5 112

3 77.8

) 61.5

) 92.6

5 44.3

L 42.3

> 35.3

> 145

I 275

5 134

5 62.0

3 99.4

J 136

I 102

Sept.

91

85

96

90

82

183

129

104

115

310

214

177

175

172

167

162

164

156

151

151

141

134

118

108

91

88

99

104

111

113

Runoff in 

acre-feet

6,860

4,630

3,780

67,040

2,720

2,350

2,170

8,600

16,940

8,000

3,810

6,110

8,090

74,060

* Winter discharge measurement made on this day.

a Ho gage-height record (stage-discharge relation affected by ice during mos 

charge computed on basis of weather records, 

b Stage-discharge relation affected by Ice.

of period); dis-
GUNNISON RIVER BASIN 135

Kahnah Creek near Whltewater, Colo.

Location.- Water-stage recorder and concrete control, lat. 38°59", long. 1C8°14', In 

sec. i)4, 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 Whltewater.

Drainage area.- 55.0 square miles.

Records available.- October 1917 to September 1921 and October 1933 to September 1947 in 

reports or ueological Survey. October 1917 to September 1921 and August 1922 to 

September 1947 In reports of State engineer.

Average discharge (combined flow).- 29 years, 43.2 second-feet.

Extremes (combined flow*). - Maximum discharge during year, 724 second-feet May 7; minimum 

dally, b.ii second-feet Jan. 17.

1917-21, 1922-47: 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 below 10 second-feet and those for Oct. 7-12, which 

are rair. Figures of flow diverted for Grand Junction water supply (obtained from 

several readings made each day on Cippoletti 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 1946 to September 194T

Day Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept.

5.8 

6.8 

8.4 

9.0

12 

al2 

a!9 

al8 

a!7

a!6

alS

16

16

16

15

14

13

6.8 

4.8 

5.3 

4.8 

2.6

2.4 

2.4

4.8 

4.3

3.3 

b2.4 

2.8 

4.3 

3.3

3.3 

b3.2 

4.8 

5.3 

6.8

b5.4

b5.4

6.8

6.3

»6.3

b6.3 

b6.3 

b6.3

5.8 

5.8 

6.3 

6.8 

6.8

b6.4

b6.4

b5.3

5.3

5.3

5.3

5.3

b4.0

b4.0

»3.8

5.3 

6.3 

5.8 

5.8 

b5.4

b5.4

b5.4

6.3

5.3

5.3

5.3 

bS.O 

b4.6 

b4.8 

b4.8

bS.O 

bS.O 

b5.2 

b5.2 

5.8

5.3

5.8

5.3

4.8

b4.4

b4.6

b4.6

b4.6

»4.9

5.0

5.0

4.2 

4.2 

4.2 

4.8 

4.6

4.4 

4.4

4.4

4.5 

3.4

3.3

2.7

2.8

2.9

2.6

2.7

2.8

2.5

2.6

2.7

2.8 

3.1 

3.1

2.7 

2.3 

2.3

2.5 

2.5

2.5

2.6

2.7

2.7 

2.7 

2.9 

2.9 

3.1

3.1 

3.1 

»3.1 

3.1 

2.9

3.3 

3.3 

3.3 

3.1

2.9 

3.1 

3.3 

3.3 

3.1

3.1 

3.3 

2.9

2.7 

2.9 

3.1 

3.5 

3.3

3.5 

3.5

3.5 

3.5 

3.8 

3.5 

3.5

3.5 

4.4 

4.8 

4.0 

4.0

5.2 

6.0 

5.6 

3.5 

3.3

3.8 

4.0 

4.8 

5.6 

6.0 

5.2

4.4 

4.8 

4.8 

4.0 

3.6

2.8 

2.8 

3.3 

4.8 

4.0

3.8 

3.3 

3.3 

4.4 

6.4

146

215

262

330

440

452

360

278

188

148

150

153

143

131

146

148

165

168

175

165

143

134

158

155

136

120

100

92

82

76

84

84

136

92

74

70

69

64

52

52

62

69

113

86

62

52

52

58

52

122

118

10

8.0

22

16

16

20

15

14

14

14

14

11

10

8.8

14

14

22

18

17

8.0

11

12

12

13

14

16

14

14

10

7.2

7.6

6.8

12

10

9.6

8.0

8.8

8.8

10

Second- Discharge in second-feet Run-off in 

foot-days Maximum Minimum Mean aere-leet

Diversions

(acrefeet)

Run-off In Mean (secacre-feet ond-feet)

Adjusted 

far diversion

October.. 

November. 

December.

311.8

161.4

159.6

19

6.8

6.3

2.4 

2.4 

3.8

10.1

5.38

5.15

618

320

317

407

289

290

1,020

609

607

16.6

10.2

9.87

Calendar year 1946 7,196.3 244 19.7 14,270 19,780 27.3

January.. . 

February.. 

March.....

April.....

Hay.......

June......

July......

August....

September.

1J.1.1

83.3

123.9

257.5

5,591

2,116 

685.0 

572.8 

362.8

5.0

3.3

6.0

23

452

136

34

27

20

2.3 

2.5

2.7

2.8

34

29

8.0

8.8

6.8

3.58

2.98

4.00

8.58

180

70.5

22.1

220

165

246

511

11,090

4,200

1,360

1,140

720

267

238

288

434

720

651

708

718

632

487

403

534

945

11,810

4,850

2,070

1,860

1,350

7.92

7.26

8.68

15.9

192

81.5

33.6

30.2

22.7

Water year 1946-47 . . 10,536.2 452 2.3 20,910 5,640 26,540 36.7

Winter discharge measurement made on this day.

 No gage-height record; discharge computed on basis of records for stations on nearby streams, 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Jan. 3 to Mar. 8 (stage-discharge relation affected by ice during 

>st of period); discharge computed on basis of 3 discharge measurements, weather records and re

for JY* ri1vpT*s1nn diversion ahnvp* above st-.aMnn. static 

852060 O - 49 - 10

cords
136 DOLORES RIVER BASIN

Dolores River at Dolores, Colo.

Location.- Water-stage recorder, lat. 37°28', long. 108°30', in sec. 9, T. 37 N., R. 15 

w., at Dolores, a quarter of a mile upstream from Lost Canyon Creek. Dftum 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 and August 1910 to December 1912 (at site 

just downstream from Lost Canyon Creek), May 1922 to September 1927 (morthly discharge), and October 1933 to September 1947 in reports of Geological Survey. June 

1895 to October 1903, August 1910 to December 1912, and April 1922 to September 1947 

in reports of State engineer.

Average discharge.- 26 years (1921-47), 484 second-feet.

Extremes.- Maximum discharge recorded during year, 3,160 second-feet May 10 (gage height, 

5.44 feet); minimum daily, 35 second-feet Jan. 16.

1895-1903, 1910-12, 1922-47: Maximum 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 excellent except those for Nov. 1 to Dec. 15, which are food, and those 

ror periods of ice effect or no gage-height record, which are fair. Diversions above 

station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

76

94

202

165

ISO

151

149

140

132

125

102

88

96

92

92

94

99

96

87

80

84

83

81

77

76

76

77

94

148

193

142

Nov.

108

108

81

93

83

10O

88

113

98

73

68

84

104

98

98

76

70

77 *76

92

98

81

88

99

72

64

93

102

93

87"

Dec.

86

96

80

84

104

96

96

72

56

47

b53

b52

b52

b55

b55

*55

54

51

49

50

50

52

50

52

53

52

50

47

43

40

41

Jan.

42

43

40

39

40

42

44

44

42

42

43

44

45

44

40

35

39

45

43

41

*43

44

44

45

47

48

49

50

46

44

46

Feb.

48

50

51

51

51

*51

51

51

48

46

45

45

50

50

50

50

52

50

47

47

47

48

50

50

50

47

49

45

-

-

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March.. ....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. ...................... ..........

Water year 1946-47 ........ .............

Mar.

42

40

43

46

46

*46

b46

b50

b51

b51

b59

b59

b59

b64

b76

76

84

*102

118

128

151

186

177

139

121

139

144

180

202

223

266

Apr.

258

291

307

256

213

186

202

202

239

216

204

165

169

232

345

451

504

636

555

673

905

968

839

920

679

601

662

737

620

620

-

Secondfoot-day s

3,471

2 1 665

1,873

110,912

1,343

1,370

3,214

13,855

61,018

13I320

10,792

7,238

159,132

May

968

.1,500

1,850

2,500

2,700

2,S50

2,200

2,200

2,760

2,910

2,520

2,050

2,040

2,330

2,160

1,810

1,670

1,59O

1,590

1,750

1,830

1,920

1,930

1,620

1,660

1,770

1,930

1,950

1,550

1,400

1,510

Maximum

202

113

104

2,200

50

52

266

968

2,910

2,110

774

1,400

381

2,910

June

1,390

1,550

1,710

1,510

1,500

1.4OO

1,710

2,O80

2,110

2,000

,1,720

1,340

1,110

1,020

1,050

1,160

1,270

1,150

992

1,120

1,460

1,270

1,120

960

898

944

944

891

826

768

-

Minimum

76

64

40

30

35

45

40

165

968

768

288

126

35

July

718

673

641

605

560

508

774

631

520

466

410

363

324

304

375

410

313

327

330

339

363

363

360

339

339

336

339

336

339

327

288

Aug.

218

202

193

241

427

204

195

239

227

223

223

2O6

188

236

193

18S

216

227

225

211

230

1,40O

1,320

724

488

378

330

307

31O

469

354

Mean

112

88 .8

6O.4

304

43.3

48.9

104 4<52

1,938

1 239 '450

2M

456

Sept.

324

296

310

256

248

266

271

232

170

332

357

304

247

214

191

173

180

336

327

381

299

246

213

188

173

157

149

139

133

126

Runoff in 

acre-feet

6,880

5,290

3,720

220,000

2,660

2,720

6,370

27,480

121,000

77 300

26^420

21,410

14,360

315,600

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Dec. 16 to Mar. 6 (stage-discharge relation probably affected by Ice 

during entire period); discharge computed on basis of 4 discharge measurements and Feather records. 

No gage-height record May 4-6; discharge computed on basis of 1 discharge measuremert and records 

for stations on nearby streams. No gage-height record ,'l-pi 9-14; discharge computed on basis of 

1 discharge measurement, records for station near McPhee and records of diversions.
DOLORES RIVER BASIN 137

Dolores River near McPhee, Colo.

Location.- Water-stage recorder, lat. 37°34', long. 108°34', in NE£ sec. 12, T. 38 N., 

R. 16 W., 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 1947.

Extremes.- Maximum discharge during year, 2,870 second-feet May 14 (gage height, 4.50 

feet); minimum daily, 2.4 second-feet Oct. 25-27.

1938-47: Maximum discharge, 8,650 second-feet Oct. 13, 1941 (gage height, 7.58 

feet), from rating curve extended above 5,900 second-feet; minimum dailT, 1.6 secondfeet Oct. 9, 1945.

Remarks.- Records good except those for periods of ice effect 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 1946 to September 19'7

Day

1

2

3

4

5

6

7

8

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

4.4

21

46

53

39

23

29

14

14

7.9

4.4

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

2.4

2.4

2.4

4.4

18

108

51

Nov.

12

6.5

7.2

5.1

»4.4

3. '8

3.1

3.8

6.5

7.9

65

87

65

47

46

36

41

46

»53

41

29

20

18

20

13

18

51

49

41

26

-

Dec.

9.5

7.9

11

11

35

26

26

27

31

31

46

55

65

55

51

*57

56

53

53

53

53

55

53

55

55

54

52

50

45

40

42

Jan.

45

46

43

42

43

45

48

48

46

46

47

48

50

48

44

40

43

50

48

45

*49

49

49

50

52

53

54

56

52

50

52

Feb.

54

56

57

57

57

*57

57

57

57

53

50

50

56

56

56

56

58

55

50

50

50

53

55

55

55

53

55

50

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April ......................................

May. ................'.......................

June .......................................

July... ....................................

August ......... ...........................

September. ..... ............................

Water year 1946-47 .......... ...........

Mar.

50

48

50

60

68

*77

77

56

58

49

46

28

18

16

22

29

58

*115

160

178

213

227

143

94

79

98

143

173

178

209

241

Apr.

218

275

275

178

98

67

67

72

122

118

143

126

126

189

260

327

374

505

414

528

753

803

566

642

456

353

411

470

345

329

-

May

630

1,150

1,490

2,100

2,250

2,350

1,720

1,640

2,030

2,340

2,180

1,860

1,900

2,370

2,060

1,680

1,370

1,240

1,180

1,260

1,330

1,440

1,450

1,140

1,110

1,220

1,400

1,440

1,080

880

1,000

Second- Maximum foot-days "aximum

485 . 9 108

l,3is!4 65

48,095.6 1,520

1,481 56

1,525 58

3,061 241

9,610 803

48,290 2,370

23,901 1,590

1,738.8 250

5,873.0 1,410

3,442.5 255

101,593.9 2,370

June

880

1,050

1,240

1,030

1,010

890

1,160

1,570

1,590

1,520

1,210

835

601

508

522

608

721

623

487

565

910

835

664

501

419

446

446

406

354

300

-

Minimum

2.

7^

2.

40

50

16

67

630

300

7.

5.

9.

2.

July

250

213

173

147

104

58

245

195

87

41

20

16

10

8.7

10

38

17

9.5

9.5

7.9

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

Aug.

1

6.5

6.5

5.8

0

186

24

1

7.9

9.5

0

8.7

8.7

1

9.5

9.5

3

10

7.9

5

20

9.5

5

4

111

53

1,27

1,41

71

3

3

3

400

255

19

16

15

31

L

3

5

1

241

Mean

1 - 15.7

L 29.1

J 42.4

1 132

47 .8

54.5

98*7

320

1,558

797

! 56 1

3 189'

3 115

1 278

* Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Hov. 11 to Dec. 15. Ho gage-height rec

to Mar. 6 (stage-discharge relation affected by ice during most of period); discharge com

basis of 4 discharge measurements and weather records. Ho gage-height record Apr. 12 to

Sept.

191

169

173

108

82

94

104

72

94

255

232

182

126

91

67

49

44

182

200

250

200

135

98

72

53

41

31

24

14

9.5

Runoff in 

acre feet

964

1 730

2^610

95,400

2,940

3,020

6,070

19,060

95,780

47,410

3 450

ll| 650

6,830

201, 500

ord Dec . IS

puted on

May 6, July

24-29; discharge computed on basis of 1 discharge measurement, records for station .it Dolores, and

records of diversions.
138 DOLORES RIVER BASIN

Dolores River at Gateway, Colo.

Location.- Water-stage recorder, lat. 38°41', long. 108°58', in SW£ sec. 15, T. 51 N., 

R. 19 W. , 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 1947.

Average discharge.- 10 years, 1,061 second-feet.

Extremes.- Maximum discharge during year, 5,040 second-feet May 15 (gage height, 5.02 

feet); minimum daily, 92 second-feet Jan. 16.

1937-47: 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.

Rating tables, water year 1946-47, except periods of ice effect

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

(Shifting-control method used Oct. 1-5, Jan. 17 to Feb. 18, * 

Mar. 7 to May 5, Aug. 23 to Sept. 30

Oct. 1 to May 4 May 5 to Sept. 30

0.3 78 1.6 580 0.

.5 122 2.2 1,030

.7 176 3.1 1,840 1.

1.0 275 3.7 2,500 1.

1.3 410 1.

6 130 2.3 1,200

8 245 2.9 1,780

0 320 3.6 2,660

3 470 4.2 3,580

6 660 4.7 4,460

Discharge, In second-feet, water year October 1946 to September 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.

Ill

165

148

159

176

192

170

154

154

151

159

165

151

151

145

143

145

151

151

143

138

138

130

125

122

122

122

122

132

148

162

Nov.

179

198

189

182

173

165

156

182

173

170

162

145

140

140

127

132

192

198

195

189

189

186

198

230

227

211

182

170

192

173

-

Dec.

173

198

195

179

165

168

162

159

154

145

135

132

145

151

159

168

176

140

125

130

132

156

159

176

182

202

224

227

189

111

102

Jan.

93

*104

115

93

109

104

96

120

151

140

132

143

143

t)130

tno

b92

140

127

113

148

165

176

170

168

165

170

179

186

186

b!50

168

Feb.

b!55

b!65

176

176

179

*186

186

189

182

205

221

234

205

182

189

198

237

258

237

214

208

192

186

182

179

168

168

195

_

_

-

Month

October. ..................... ........ ....

November. ...................... . .........

December. ..................................

Calendar year 1946 ................. .

January ............................. ...

February. ......................... .....

March. ............. ......... ... .......

April. ........ . . ...... ....... .....

May. . . ... ................. .......

June . . ...... . . . . . . ........ . ... ....

July. ... .... .... ...... ......

August .............. . . . ... ......

September. . ... ... . . ..... .......

Water year 1946-47 ... ........

Har.

182

154

165

159

165

165

170

176

176

173

170

173

176

168

162

151

145

162

195

211

258

370

440

502

400

295

254

250

324

478

594

Apr.

1

1

1

1

1

1

1

1

1

1

1

1

1

Secondfoot-days

4,545

5,345

5,019

148,948

4,286

5,452

7,563

24,548

87,020

55,760

24,058

18,521

15,113

257,230

650

568

587

622

544

405

320

287

279

307

291

295

283

283

311

450

636

,070

,050

,210

,350

,760

,820

,670

,430

,330

,110

,130

,210

,290

May

1,350

1,420

1,930

2,460

4,010

4,300

4,140

3,550

3,220

3,110

3,580

3,700

3,610

3,610

4,150

3,920

3,600

2,750

2,420

2,290

2,330

2,450

2,590

2,410

2,130

2,150

2,130

2,130

2,190

1,780

1,610

Maximum

192

230

227

1,880

186

258

594

1,820

4,300

2,940

1,630

2,030

1,090

4,300

June

1,720

1,780

1,840

2,070

1,810

1,670

1,820

2,150

2,900

2,940

2,600

2,260

1,970

1,630

1,350

1,340

1,570

1,780

1,770

1,550

1,750

2,090

2,200

1,810

1,560

1,430

1,480

1,590

1,650

1,680

Minimum

11

12

10

8

9

15

14

27

1,35

1,34

25

18

21

9

July

1,630

1,530

1,420

1,330

1,280

1,140

1,160

1,250

1,100

1,170

1,080

90<,

772

667

618

960

759 60.'

518

470

437

395

405

395

380

323

300

263

259

251

273

Aug.

248

256

192

186

270

400

352

262

248

248

242

266

334

262

259

280

270

570

304

459

464

1,

1,

2,C

740

310

>30

1,470

1,060

l,t

368

758

554

)50

709

Mean

L 147

7 178

2 162

5 408

2 138

5 195

5 244

3 818

D 2, 807

D 1,859

3 776

5 597

I 504

2 705

Sept.

542

660

639

597

488

916

801

437

470

1,090

864

639

590

536

448

385

370

338

454

426

448

470

482

405

338

300

276

2ti6

224

214

Runoff in 

acre- feet

9,010

10, 600

9,960

295,400

8,500

10,810

15,000

48,690

172,600

110,600

47,720

36,740

29,980

510,200

* Winter discharge measurement made on this 

t> Stage-discharge relation affected by ice.

day.
DOLORES RIVER 139

Lost Canyon Creek at Dolores, Colo.

Location.- Water-stage recorder, lat. 37°28', long. 108°30", In SE£ sec. 16, T. 37 N., 

R. 15 W., three-quarters of'a mile upstream from mouth and three-quarters of a mile 

south of Dolores. Datum of gage Is 6,919.64 feet above mean sea level, datum of 

1929.

Drainage area.- 81 square miles.

Records available.- April 1922 to September 1927 (monthly discharge, no winter records), 

October 1941 to September 1947. (March to September 1941 in files of Bureau of Reclamation. )

Extremes.- Maximum discharge during year, 410 second-feet May 14 (gage height, 3.98 

feet); no flow on many days.

1922-27, 1941-47: Maximum discharge, 1,590 second-feet Oct. 14, 1941 (gage height, 

4.97 feet, site and datum then in use), from rating curve extended above 600 secondfeet; no flow on many days in each year.

Remarks.- Records excellent above 10 second-feet and fair below except those for period 

of no gage-height record, which are poor. Many small diversions and small storage 

reservoirs above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 19'7

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.5 

1.3

2.0 

1.3 

1.3 

1.5 

1.1

1.0 

.9 

.7 

.4 

.8

.7 

.8 

.8 

.4 

.2

.2

.1 

.1 

.1 

0

0 

0 

0

.1 1.1

3.9

Nov.

2.7 

1.6 

1.5 

1.1 

1.5

1.5 

1.6 

2.5 

3.0

2.1 

2.4 

2.5 

2.8 

2.8

1.8

1.5 

1.2 

1.2

1.2 

1.2 

1.2 

2.5 

1.8

1.6 

1.6 

1.6 

1.7 

1.8

Dec.

2.0 

2.0 

1.8 

1.7 

2.2

2.4 

2.2 

*1.8 

1.3

1.2 

1.2 

1.2 

1.3 

1.5

1.3

1.2 

1.0

.7

.3 

.3 

.3 

.4

.7

.9 

1.2 

1.6 

1.0 

b.7 

b.6

Jan.

0.5 

.3 

.2 

.1 

.1

.1 

.1 

.1 

.1

.1 

*.l 

.2 

.4 

.2

.1

.2 

.3

.4

.3 

.3 

.4 

.5 

.6

.6 

.7 

.8 

1.0 

.6 

.8

Feb.

0.7 

.8 

.8 

.9

1.0

1.1 

1.2 

*1.3 

1.5

1.4 

1.2

1.3 

1.3 

1.5

1.6

1.3 

1.3 

1.2

1.2 

1.3 

1.4 

1.5 

1.6

1.8 

1.7 

1.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ............. ....................

lendar year 1946 

ary

h. . ...................................

1. ............................. .......

St. ....................................

ter year 1946-47 ......... .....

Mar.

1.1 

1.3 

*1.5 

1.6 

1.3

1.3 

1.7 

1.5 

1.7

2.2 

2.1 

2.1 

2.7

3.2

3.9

5.3 

5.3 

6.0

4.6 

9.0 

13 

12 

13

6.9 

7.4 

6.9 

9.8 

12 

18

Apr.

26

51 

58 

39 

12

15 

11 

13 

21

10

13

7.2 

6.9 

8.5 

67

106 

109 

128 

84 

121

142 

140 

96 

90 

339

229 

46 

57 

32 

29

Secondfoot-days

21.3 

55.2 

38.3

1,871.4

10.4 

36.5 

165.3 

1,506.6 

2,322.2 

7.5 

0 

26.8 

2.6

4,292.7

May

67 

91 

85 

118 

102

55 

34 

28 

28 

140

126 

110 

176 

278 

222

153 

118

83 

63 

50

38 

30 

24 

29 

19

14 

11 

10 

11 

6.0 

3.2

Maximum

3.9 

3.0 

2.4

122

1.0 

1.8 

18 

142 

278 

2.4 

0 

9.8 

1.0

278

June

2.4 

1.7 

.9 

.3 

.6

.3 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.2 

.1

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

0 

1.1 

.3

0

.1 

.7 

1.1 

6.9 

3.2 

0 

0 

0 

0

0

July Aug.

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

7.0 

9.8 

4.2 

2.1

1.3 

.8 

.5 

.3 

.3 

.5

Mean

0.69 

1.84 

1.24

5.13

.34 

1.30 

5.33 

53.6 

74.9 

.25 

0 

.86 

.09

11.8

Sept.

0.8 

1.0 

.2 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

.2 

.2

0

0 

0 

0 

0 

0

Runoff in 

acre-feet

42 

109 

76

3,710

21 

72 

328 

3,190 

4,610 

15 

0 

53 

5.2

8,520

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Jan. 1 to Mar. 2 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 2 discharge measurements and weathe" records.
140 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 E.7 Just downstream from Pole Springs Canyon and 8-| miles northeast of La Sal.

Drainage area.- 21.9 square miles.

Records available.- August 1944 to September 1947.

Extremes^- Maximum discharge during year, 24 second-feet May 3 (gage height, 2.39 feet); 

minimum daily, 0.3 second-foot July 6-14, 25, Aug. 23 to Sept. 30.

1944-47: 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 10 to Sept. 17, 1946.

Remarks.- Records fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 19<'7

Day

1 

2 

3 

4 

5

6 

7 

8 

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

.4 

.4 

.4

.4 

.4 

.4 

.4

.5 

.5

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Nov.

0.4

.4

.4

.4

.4

.4

.4

.4 

.4

.4

.5 

.5

.5 

.5 

.5 

.5 

.5

Dec.

0.6

.6 

.6 

.6

.6 

.7 

.7 

.7

.8

.8 

.8 

.8

.8 

.8 

.8 

.7 

.6 

.6

Jan.

0.7

.7 

.7 

.7

.7 

.7 

.7 

.7

.7

.6 

.6 

.7

.7 

.7 

.7 

.7 

.7 

.7

Feb.

0.7

.7 

.7 

.7

.7 

.7 

.7 

.7

.8

o

o

.6 

.6 

.7

.8 

.8 

.8

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1946

h. .....................................

1. .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

0.6

.6 

.6 

.6

.6

.6 

.6 

.6

a. 8

2.4 

1.4 

1.3

1.3 

1.8 

2.4 

2.6 

3.4 

3.2

Apr.

3.9

4.9

3.2 

2.1

1.9 

2.2 

4.2 

4.4

3 9

6.7

7.7

3 2

3 9

2.9 

2.2 

2.4

2.1 

2.1 

2.2 

1.9 

1.9

Secondfoot-days

13.1 

12.8 

22.5

265.8

21.3 

20.5 

36.4 

106.8 

235.1 

22.2 

11.5 

11.5 

9.0

522.7

May

3.6

15 

Iff 

15

18 

17 

15

13

13

2.1 

1.9 

1.8

1.6 

1.3 

1.3 

1.3 

.8 

.8

Maximum

0.5 

.6 

.8

4.4

.7 

.8 

3.4 

9.0 

18 

2.1 

.4 

.4 

.3

18

June

0.8

1.0 

2.1 

1.4

1.1 

.8 

.7 

.7

.6

.7 

.7 

.6

.5 

.5 

.4 

.4

.4

Minimum

0.'

B 

.(

. 

. 

. 

1.

.

July

0.4

.4

.4 

.4 

.4

.4 

.3 

.3 

.3

.4

.4 

.4

.3

.4 

.4

.4 

.4 

.4 

.4

Aug.

0.4

.4

.4 

.4

.4 

.4 

.4 

.4

.4

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Mean

I 0,42 

I .43 

5 .73

L .73

; .69

3 .73 

3 1.17 

3 3.56 

J 7.58 

I .74 

5 .37 

5 .37 

5 .30

5 1.43

Sept.

0.3

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

Runoff in 

acre-feet

26 

25 

45

528

42 

41 

72 

212 

466 

44 

23 

23 

18

1,040

* Winter discharge measurement made on this day.

a No gage-height record (stage-discharge relation affected by ice during entire period); discharge 

computed on basis of weather records.

Note.- Stage-discharge relation affected by Ice Jan. 26 to Mar. 9, Mar. 19.
DOLORES RIVER BASIN 141 

West Paradox Creek near Paradox, Colo.

Location.- Water-stage recorder, lat. 38°33', long. 109°00", in sec. 30, T. 48 N., R. 19 

w., at La Sal National Forest boundary and 2 miles northwest of Paradox.

Records available.- August 1944 to September 1947.

Extremes.- Maximum discharge during year, 60 second-feet May 16 (gage height, 2.70 

reet); minimum daily, 0.2 second-foot Jan. 16-22.

1944-47: Maximum discharge, 102 second-feet May 1, 1945; maximum ga-re height, 

3.21 feet Sept. 12, 1946; minimum daily discharge, 0.1 second-foot Mar: 1-13, 1946.

Remarks.- Records fair. Diversions from Geyser and Deep Creeks in Roc Creek Basin are 

stored in Buckeye Reservoir (capacity, 3,000 acre-feet) and released do-«i West 

Paradox Creek for irrigation (see p. 154).

Discharge, in second-feet, water year October 1946 to September 19''7

Day

1

2

3

4

5

6

7

8

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

2.3

2.0

1.8

1.6

1.6

1.6

1.7

2.1

2.1

2.2

2.2

2.2

2.2

2.1

2.2

2.1

2.1

2.1

2.2

2.3

2.3

1.6

1.0

1.0

1.1

1.1

1.5

1.4

1.3

Nov.

1.2

1.2

1.2

1.3

1.2

1.2

1.2

1.6

1.5

1.1

1.5

1.6

1.5

1.6

1.4

1.1

1.2

1.5

*1.6

1.3

1.4

1.2

1.4

1.7

1.1

1.1

1.5

1.4

1.2

1.1

-

Dec.

1.2

1.1

1.1

1.2

1.3

1.3

1.4

1.1

1.1

1.2

1.3

1.3

1.3

1.3

1.3

bl.l

*b.9

.7

.7

.6

.7

.6

.6

.6

.6

.8

.7

.5

b.6

b.6

b.6

Jan.

bo. 4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

*.2

.2

.3

.3

.3

.3

.3

.3

.3

.4

.4

Feb.

0.

.5

.5

.5

.5

.5

.5

.5

.5

*.5

.4

.4

.3

.3

.3

.3

.3

.5

.4

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March ......................................

May........................................

July. ......................................

September. ..............................

Water year 1946-47 ......................

Mar.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

b.5

b.6

b.7

*.8

.8

1.0

1.9

2.7

2.0

1.4

1.9

3.2

4.6

5.7

6.7

6.1

Apr.

5.5

7.4

7.4

6.0

5.7

5.3

5.7

6.0

6.5

5.5

5.2

4.6

4.4

5.8

7.2

7.0

7.2

8.1

8.1

8.1

9.1

8.8

8.5

8.1

8.3

9.4

9.7

9.7

9.7

9.7

-

Secondfoot-day s

58

29.4

1,137.5

118.8

2,496.5

May

10

12

12

12

12

13

17

17

27

48

49

55

53

52

53

57

37

23

22

22

23

23

22

22

22

22

22

29

30

22

23

Maximum

1.4

12

25

5.3

57

June

23

23

23

25

22

22

20

22

22

22

22

22

22

13

13

8.6

8.8

8.8

8.8

9.9

9.1

11

10

10

10

9.8

8.6

8.6

8.6

8.6

Minimum

.5

.1

2.9

.2

July

8.6

8.6

10

11

10

10

10

17

17

17

18

18

18

16

16

13

12

11

11

11

12

10

9.

9.

9.

9.

9.

9.

11

13

13

Aug.

14

17

17

17

17

17

13

10

8.3

8.5

7.8

7.6

7.4

7.4

7.4

7.0

7.0

6.5

7.2

7.8

8.8

6.7

5.5

5.3

5.2

5.0

4.6

4.6

4.4

4.1

4.0

Me<m

.95

3.12

3.96

6.84

Sept.

.1

.4

- .4

.3

.0

3.2

3.2

3.1

3.1

3.2

2.9

2.9

2.9

3.1

3.1

3.2

3.2

3.2

3.9

4.7

4.7

4.7

4.7

4.7

4.7

4.9

5.0

5.0

5.3

5.0

-

Runoff in 

acre-feet

58

2,260

236

4,950

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Jan. 2 to Feb. 18 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 1 discharge measurement and weather records. No 

gage-height record May 21 to July 14j discharge computed on basis of diversions Just below station.
142 DOLORES RIVER BASIN

West Paradox Creek near Bedrock, Colo.

Location.- Water-stage recorder, lat. 38°20', long, 108°52', in sec. 16, T. 47 N. , R. 18 

W., half a mile upstream from mouth and 2 miles northeast of Bedrock.

Records available.- August 1944 to September 1947.

Extremes.- Maximum discharge during year, 16 second-feet Aug. 23, 1946 (gage height, 

3.IB feet); no flow at times.

1944-47: Maximum gage height, 4.29 feet Aug. 27, 1945 (discharge not determined); 

no flow at times in 1946, 1947.

Remarks.- Records poor. Most of flow diverted above station for irrigation.

Discharge, in seoond-feet. water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

10

11

13

15

17

19

21

23

25

26

27

Oct.

0

0

o

0

0

o

0

0

0

.1

0

0

.1

.3.1

.1

.1.1

.1

.1.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

Nov.

0.2

.3

.4

.1

O

o

0

.2

.5

.2

.2

.3

.3

.2

.1

.1

.1

.1

.1

.2

.4

.5

2.4

2.4

1.0

1.0

.6

1.2

1.4

-

Dec.

1.4

1.4

1.4

1.4

1.5

1.4

1.2

2.2

2.3

2.4

1.5

1.5

1.3

1.3

.9

*.8

.7

.6

.6

.7

.8

.8

.9

1.0

1.0

1.6

1.5

1.0

.8

.8

Jan.

0.9

.8

.9

1.0

1.0

.9

1.0

1.0

.9

.9

.9

1.0

1.1

1.1

1.0

1.2

1.4

1.5

1.8

*2.0

2.3

2.5

2.5

2.6

2.6

2.6

2.4

2.1

1.9

2.0

Feb.

1.9

2.0

2.1

2.1

2.1

2.1

2.0

1.9

1.8

1.7

1.8

2.0

2.1

2.0

1.9

2.0

2.1

*2.1

2.2

2.1

2.2

2.0

2.1

2.0

2.0

2.0

2.2

_

_

-

Month

December . ......... ... ..................

Calendar year 1946 ........... .......

March. .....................................

May.. .... ... ... .......... ..... .......

September ........ .... . . . ....... .......

Water year 1946-47 ... . . ... .........

Mar.

2.4

2.5

2.7

2.7

2.6

2.3

2.2

2.0

1.8

1.8

1.6

1.5

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.8

1.6

1.4

1.4

1.4

1.4

1.4

1.5

2.1

Apr.

1.4

1.4

1.3

.6

.2

.2

.2

.2

.4

.6

.4

.5

.4

.1

.2

.1

.2

.1

.1

.1

.2

.2

.2

.2

.4

.2

.1

Secondfoot-clays

37.4

606.6

5.1

272.2

May

0.5

.2

.2

.2

.1

.2

.1

0

.1

1.2'

3.1

1.1

1.4

2.4

2.0

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Maximum

2.4

31

.8

4.3

June

0.1

.1

.2

.4

.2

.3

.6

.7

.4

.1

.1

0

0

0

0

0

0

0

0

0

0

o

o

.1

.1

.2

.3

.5

.4

Minimum

.6

0

0

0

July

1.0

.6

1.5

1.6

1.4

.5

.4

.3

.2

.1

O

0

0

0

.1

0

o

0

0

0

o

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

.3

.2

.3

.3

.3

.2

.2

.2

.3

.3

.3

2

.2

.2

.2

2.2

2.7

.1

.1

.2

,2

.2

.1

,2

.1

Mean

1.21

1.66

1 83

.17

.75

Sept.

0.1

.1

.1

.1

.2

.2

.1

O

.2

.6

.2

.2

.4

.3

.2

O

0

0

0

.1

.2

0

0

0

.2

Runoff in 

acre-feet

74

1,200

93

9 5

10

538

* Winter discharge measurement made on this day.

Note.- No gage-height record Dec. 31 to Feb. 18 (stage-discharge relation i-robahly afferted by Ic

during part of period); discharge computed on basis of 1 discharge measurement and weather records.
DOLORES RIVER BASIN 

Buckeye Reservoir Outlet near Paradox, Colo.

143

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 1947. Records of monthly acre-feet, May 

to September 1945, published In Water-Supply Paper 1039, with record for West 

Paradox Creek near Paradox.

Extremes (regulated).- Maximum dally discharge during year, 43 second-feet May 12-16; 

minimum not determined, but probably no flow at times during winter.

1945-47: Maximum daily discharge, that of May 12-16, 1947; no flow at times during 

winter of 1945-46.

Remarks.- Records excellent above 6 second-feet and fair below except those for period of 

no gage-height record, which are poor. Plow is all diverted from Deep and Geyser 

Creeks and regulated by Buckeye Reservoir (capacity, 3,000 acre-feet).

Discharge, in second-feet, water year October 1946 to September 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.

3.0

3.1

3.1

2.7

2.3

2.3

2.3

2.2

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

1.3

.3

.3

.3

.3

.3

.3

.3

.3

Nov.

> 0.3

-

Dec.

' 0.3

Jan.

* 0.3

Feb.

> 0.3

_

_

-

Month

October. ..................................

November. ........................ .........

December. ..................................

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March. ..................... ...............

April ...................... ...............

May. .......................................

June ....................... ...............

Jnly. ... .............................. ...

August .....................................

September. ............................. ...

Water year 1946 47 ...... ...............

Mar.

.

' 0.3

Apr.

2.0

2.0

2.0

2.0

2.1

2.2

2.2

2.2

2.2

2.3

2.5

2.5

2.5

2.5

2.6

2.6

2.7

3.5

4.1

4.6

5.1

6.2

6.4

6.4

8.4

9.4

9.7

9.7

10

10

-

Seccndfoot-days

54.1

9.0

9.3

1,197.5

9. 3

fl " 4

9 3

132.6

COG

503

I5e'.l

2,687.5

May

12

14

16

18

18

26

28

28

31

34

39

43

43

43

43

43

31

24

24

25

25

25

25

25

25

25

29

33

33

29

27

Maximum

3.1

-

14

10

43

22

20

6.0

43

June

27

27

27

27

27

27

28

28

28

28

28

28

28

21

17

15

14

14

14

14

14

14

14

14

14

14

12

11

11

11

-

Minimum

0.3

_

-

0

2.0

12

11

11

5.1

4.3

-

July

11

11

111"

13

13

13

16

21

21

2?

2?

2?

21

21

IS

17

18

18

18

18

15

13

13

13

12

13

13

16ia

18

Aug.

19

20

20

20

20

19

15

11

9.2

8.6

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

9.4

9.9

8.0

7.0

7.0

7.0

7.0

6.4

5.9

5.9

5.9

5.5

5.1

M>in

1.75

.3

.3

3.28

.3

.3

.3

4.42

28 5

19 9

16 * 2

10.2

5.22

7.36

Sept.

.5

.9

.9

.9

.1

.6

.6

.6

.6

.6

.6

.6

.3

.3

.3

.3

.3

.3

5.5

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

4.9

-

Runoff in 

acre-feet

107

18

18

2,380

18

17

18

263

1 75O

1^180

626

311

5,320

Note.- No gage-height record Oct. 24 to Mar. 31; discharge computed on basis of observations by 

water commissioner.
144 DOLORES RIVER BASIN

San Mlguel River near Placerville, Colo.

Location.- Water-stage recorder, lat. 38°02 I , long. 108°07', in SE£ sec. 30, T. 44 N., 

K. J.J. rf., 100 feet downstream from Specie Creek and 3 miles northwest o* Placerville.

Drainage area.- 308 square miles.

Records avaiLable.- January to September 1909 (monthly discharge) at Saltaio Ranch. 

3 miles downstream, October 1909 to November 1912 (monthly discharge) at site 2? 

miles upstream (excludes flow of Specie Creek), and March 1942 to September 1947 in 

reports of Geological Survey. January 1909 to November 1912, April 1930 to September 

1934 (above Specie Creek; no winter records), and March 1942 to Septenrtnr 1947 in 

reports of State engineer.

Extremes.- Maximum discharge during year, 1,330 second-feet June 9 (gage height, 3.08 

reet;; minimum daily, 50 second-feet Jan. 4, 30.

1909-12, 1930-34, 1942-47: Maximum discharge, 10,000 second-feet Seot. 5, 1909 

(failure of Trout and Middle Reservoir Dams); minimum daily, 50 second-feet Dec. 

21-25, 1911, Jan. 4, 30, 1947, but may have been less during period of ice effect.

Remarks.- Records excellent above 100 second-feet and good below. Diversions above 

station for irrigation. Slight regulation by Lake Hope and Trout Lake of Western 

Colorado Power Co. (combined capacity, 5,040 acre-feet).

Rating table, water year 1946-47, except periods of Ice effect

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

(Shifting-control method used Oct. I to Nov. 13, Dec. 20 to Feb. 9)

0.20 

.40 

.50 86

0.70

.9 

1.3

120

165

290

1.8 

2.3 

2.8

495

780

1,130

Discharge, in second-feet, water year October 1946 to September 19'7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

100

115

130

122

124

111

116

113

113

109

94

96

94

94

96

102

106

104

96

97

94

96

96

94

96

96

88

97

120

115

102

Nov.

89

96

86

86

88

89

89

89

86

78

69

78

78

b70

b70

70

70

*73

77

83

81

80

82

86

80

73

83

78

77

78

-

Dec.

76.

74

72

76

77

77

78

69

60

64

71

77

76

76

72

72

66

68

62

70

66

72

70

70

65

66

68

69

57

58

55

Jan.

51

59

55

50

59

66

74

71

74

76

77

72

66

69

65

65

68

70

70

59

57

59

61

60

61

56

56

57

58

50

63

Feb.

60

59

54

58

61

63

63

66

60

57

55

58

60

59

60

60

57

58

59

58

59

59

55

54

54

57

56

56

_

_

-

Month

October. ...................................

November. ..................................

December .............. ....................

Calendar year 1946 .................... .

January. ................................. .

February ...................................

March. .....................................

April ......................................

May

June .......................................

July.... ...................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

54

52

55

56

55

54

56

54

53

52

55

55

53

54

52

52

58

65

68

71

82

102

97

77

68

71

77

94

102

106

116

Apr.

107

128

128

109

86

74

78

77

82

81

77

69

66

82

128

168

201

231

195

225

330

318

283

294

213

240

255

258

219

269

-

Secondfoot-days

3

2J412

2,149

74,452

~

1 , 635

5)071

17,619

17^459 10 , 326

ft 7 F.^ , «"

95,728

Hay

358

422

545

714

714

822

732

660

768

774

720

594

515

464

450

450

418

402

406

434

486

578

600

495

535

636

672

690

535

495

535

Maximum

96

78

1,000

77

66

116

330

822

1,150

906

414

1,150

June

530

648

702

630

572

567

808

1,070

1,150

1,100

997

690

545

520

572

780

906

794

660

836

1,070

801

666

567

572

708

822

885

920

920

-

Minimum

69

55

51

, 50 

54

52

66

358

520

314

213 . __ lou

50

July

892

871

829

829

780

750

. 906

780

720

702

630

572

510

482

708

584

490

446

438

426

410

418

398

394

386

378

358

374

350

334

314

Aug.

298

280

266

334

406

334

302

298

290

280

258

243

249

240

216

213

228

266

258

258

294

822

636

459

402

338

346

342

354

426

390

Mean

104

80 .4

69.3

204

63.0

Co A

OO . *

68 . 3

cco ^ Do

767

£63

333

eye.

262

Sept.

410

414

386

370

362

358

354

330

342

366

342

322

290

269

249

237

276

322

334

306

269

246

231

219

207

201

189

189

183

180

-

Runoff in 

acre- feet

400

4)780

4,260

147,700

3^240

4,200

10,060 34 950

45)640

2O 480

17I360

189,900

» Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
DOLORES RIVER BASIN 145

San Miguel River at Naturita, Colo.

Location.- Water-stage recorder, lat. 38°13', long. 108°34 I , in SE^SWi sec. 19, T. 46 N., 

K. 15 W., at highway bridge 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.

Records available.- October 1917 to September,1927, October 1940 to September 1947 in 

reports or Geological Survey. April 1918 to September 1929, October 1940 to September 

1947 in reports of State engineer. (April to September 1940 in files of Bureau of 

Reclamation.)

Average discharge.- 19 years, 415 second-feet.

Extremes.- Maximum discharge during year, 3,520 second-feet Sept. 6 (gage height, 6.62 

reet); minimum daily, 66 second-feet Jan. 1.

1917-29, 1940-47: Maximum discharge, 7,100 second-feet Apr. 15, 1?42 (gage height, 

9.80 feet), from rating curve extended above 3,800 second-feet; minimi'm daily, 38 

second-feet Aug. 31, 1918.

Remarks.- Records excellent Apr. 21 to Sept. 30, others 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 1946 to September 1347

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

Dot.

101

109

132

132

148

122

122

124

118

115

110

1O4

106

101

102

107

112

112

109

104

104

104

104

104

104

109

107

107

120

178

138

Nov.

122

118

114

106

110

115

114

115

120

114

98

90

99

80

81

85

96

99

104

112

110

106

107

124

115

99

101

109

99

99

-

Dec.

96

94

93

93

102

98

101

99

82

71

78

90

94

94

88

85

84

*80

68

74

77

82

88

91

88

84

85

82

73

70

67

Jan.

66

76

74

72

78

BZ

86

84

90

94

96

92

80

82

78

78

82

86

91

*b95

b90

b84

b9O

b90

b90

b86

b82

b84

b86

b74

b88

Feb.

b84

80

78

82

85

88

88

94

92

88

86

90

98

100

94

94

100

*104

94

99

82

94

96

88

81

85

90

87

-

.

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April... ...................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

68

70

77

84

80

74

74

78

78

74

78

81

75

74

77

77

94

120

142

154

176

208

222

148

117

117

130

172

200

204

263

Apr.

202

220

263

235

190

156

150

150

180

175

165

155

145

190

250

320

390

460

400

660

670

700

492

570

339

354

360

400

354

360

-

Seoondfoot-days

3,569

3,161

2,651

85,249

2j 606

2 521

3' 686

9,655

23,010

23,515

16,458

9,420

8,716

108,968

May

540

655

820

1,000

1,090

1,250

1,100

890

1,030

1,030

970

860

780

655

£20

630

545

508

512

' 545

600

675

7OO

590

560

660

720

740

635

535

565

Maximum

178

124

102

1,020

96

104

263

70O

1 250

l|l30

905

860

580

1,250

June

540

630

730

69O

640

675

775

1,050

1,130

1,130

1,O40

800

630

555

555

695

885

810

675

770

1,070

885

755

635

585

690

785

870

900

935

-

Minimum

101

80

67

64

66

78

68

145

508

540

242

176

148

66

July

905

8F5

srs

sro

810

6f5

9C5

BIO

745

7?0

srs

5TO

SCO

4fO

6^0

6SO

5C8

4J6

3S2

3T2

353

342

359

3C3

2T9

270

24?

2E2

2EO

ees

250

Aug.

252

190

182

180

346

232

196

192

194

178

176

190

228

218

184

192

204

252

235

230

228

830

860

550

400

327

306

279

441

600

348

r«an

115

105

85.5

234

84.1

90.0

119

322

742

784

531

304

291

299

Sept.

321

376

345

306

412

580

291

252

336

520

392

354

309

276

250

240

232

345

345

312

262

238

214

' 190

178

180

190

166

156

148

-

Runoff in 

acre-feet

7,080

6,270

5,260

169,100

5,170

5,OOO

7,310

19 150

45*640

46,64o

32,640

18 f 680

17,290

216,100

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice. 

Note.- Ho gage-height record Dec. 30 to Jan. 19, Feb. 2-17, Apr. 10-20; discharge computed on 

basis of weather records and records for station near Placervllle.
146 DOLORES RIVER BASIN

Pall Creek near Pall Creek, Colo.

Location.- Water-stage recorder, lat. 37°58', long. 108°01', in sec. 24, T. 43 N., R. 11 

w., 2.7 miles upstream from mouth and 2.8 miles south of Fall Creek. Datum of gage 

is 7,930.79 feet above mean sea level (levels by Bureau of Reclamation).

Drainage area.- 33.5 square miles.

Records available.- October 1942 to September 1947. (July 1941 to September 1942 in 

t'lies or bureau of Reclamation.)

Extremes.- Maximum discharge during year, 138 second-feet May 3 (gage height, 1.23 feet); 

minimum not determined, occurred during period of no gage-height record.

1942-47: Maximum discharge, 476 second-feet May 14, 1944 (gage height, 2.36 feet, 

from floodmarks), from rating curve extended above 150 second-feet; minimum not determined, occurred during period of no gage-height record.

Remarks.- Records good above 10 second-feet and fair below. No diversion or regulation 

aDove station.

Discharge, in second-feet, water year October 1946 to September 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.

8.7

15

21

17

16

14

14

12

12

11

9.8

9.8

^9.2

10

9.8

11

9.8

8.2

8.7

8.7

8.7

8.7

8.2

7.6

7.6

7.6

8.2

17

14

9.2

Nov.

11

9.2

8.0

8.8

7.6

7.0

7.0

7.2

7.6

8.2

9.0

7.2

6.1

5.6

6.2

7.0

8.0

8.4

7.6

*7.0

6.4

6.4

6.0

6.0

6.2

6.0

5.8

6.0

6.2

6.0

-

Dec.

' 5.5

Jan.

> 4.0

Feb.

. 3.5

-

-

-

Month

October. ..................... ... ....

November. ........................ .......

December. ...................................

Calendar year 1946 ......................

January. ................................

February. ........................ ......

March ......................................

April ......................................

May. .......................................

June .......................................

July.. .....................................

August. ....... ........... ................

September. .... .................... .......

Water year 1946-47 ...... ...............

Mar.

. 4.0

(*)

(*)

'

Apr.

5.4

8.7

9.2

7.0

6.2

5.4

5.0

5.0

*5.1

5.4

4.8

5.8

7.0

9.2

14

17

22

22

21

29

40

37

36

33

27

31

35

34

31

37

-

Second 

foot-days

342 5

214.7

170.5

6,999.8

124.0

98 .0

124.0

555.2

2,506

2,540

1,316 

875

743

9,608.9

May

59

76

91

103

99

112

99

99

108

110

96

79

70

67

66

59

55

57

59

66

74

86

87

73

74

84

87

92

73

70

76

Maximum

21

11

109

40

112

120

80

101

37

120

June

74

82

91

94

87

91

105

120

120

112

107

86

74

67

66

77

86

86

74

79

107

86

76

70

64

70

71

77

71

70

-

Minimum

7.6

5.6

.

4.8

55

64

17

16

17

_

July

63

70

63

67

6?

69

80

6*

57

51

47

44

33

33

45

45

33

3i3

31

31

30

31

23

23

2t

23

21

ZZ

21

19

17

Aug.

17

16

16

26

28

19

17

19

19

20

23

26

26

26

22

21

23

24

22

22

26

101

57

42

35

31

30

29

28

35

29

Mean

11.0

7.16

5.5

19.2

4.0

3.5

4.0

1 4.O fl . RD

84.7

42 .5

24is

26.3

Sept.

28

29

26

23

22

23

23

21

24

37

36

28

24

22

21

19

31

36

32

29

26

24

23

22

21

2 Li

19

19

18

17

-

Runoff in 

acre- feet

679

426

338

13,890

246

194

246

1,100

4,970

5,040

2,610 

1,740

1,470

19,060
DOLORES RIVER BASIN 147 

Beaver Creek near Norwood, Colo.

Location.- Water-stage recorder, lat. 37°56', long. 108°10' , In sec. 28, T. 43 N., R. 12 

W., 5UO feet upstream from Goat Creek and 16 miles southeast of Norwood. Datum of 

gage is 8,010.81 feet above mean sea level (levels by Bureau of Reclamation).

Drainage area.- 35.2 square miles.

Records available.- October 1942 to September 1947 (no winter records 1943, 1945).

(October, November 1940, April 1941 to September 1942 in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 401 second-feet May 5 (gage height, 2.26 feet); 

minimum daily, 0.6 second-foot Oct. 1.

1942-47: Maximum discharge, 576 second-feet May 23, 1944 (gage height, 2.76 feet), 

from rating curve extended above 370 second-feet; no flow Sept. 9-17, 1?46.

Remarks.- Records good above 10 second-feet and fair below except those for period of no 

gage-height record, which are poor. One large diversion above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

21

22

??,

24

25

26

27

28

29

so

31

Oct.

0.6

1.2

3.0

2.8

4.0

2.7

2.8

2.5

1.8

1.6

.8

.8

.8

.8

.8

1.0

1.8

1.8

1.3

1.0

1.0

3.6

4.9

4.7

4.9

4.9

6.9

22

14

7.4

Nov.

5.3

.8

.9

.6

.9

.7

.7

.5

.7

.7

.9

.8

.7

.7

.7

.9

.9

* .6

.8

.0

.9

.8

.2

.7

.4

.1

.3

.6

.4

~

Dec.

4.1

4.2

4.4

4.4

4.5

4.2

3.8

3.9

4.0

3.8

3.9

4.1

4.3

4.5

4.8

*4.9

4.9

4.8

4.5

4.4

4.5

4.6

4.7

4.8

4.8

4.6

4.4

a4.0

a3.4

a3.1

Jan.

> a3.3

Feb.

> a3.1

_

_

-

Month

December .............. ....................

Calendar year 1946 ......................

March. ...... ..............................

April .......................... .......

May.................................... ..

September ... ...................... .... .

Water year 1946-47 ... ..................

Mar.

I a2.8

Apr.

a3.8

34.1

a4.3

a4.2

a4.3

34.8

35.6

36.8

*39.6

11

9.4

10

11

13

18

22

27

32

35

68

77

72

72

53

47

56

59

50

60

-

Secondfoot-days

145.4

133.4

4,289.2

179.5

4,728.4

May

70

83

97

168

279

291

150

99

128

130

105

91

54

34

35

24

19

18

20

28

30

26

17

18

19

21

25

16

13

14

Maximum

4.9

132

291

27

291

June

14

15

19

22

63

69

21

26

25

20

17

15

13

11

9.4

8.7

9.0

10

9.4

20

13

11

9.0

7.8

7.2

6.3

5.8

5.3

4.8

-

Minimum

3.1

0

13

2.6

.6

July

5.1

4.2

3.9

4.2

3.6

5.3

8.4

4.8

5.5

3.9

4.8

3.1

2.6

7.5

9.0

6.9

3.4

6.9

2.8

2.1

2.8

2.6

2.1

1.9

2.0

2.2

2.0

1.7

1.7

1.5

Aug.

1.0

1.1

1.3

1.2

2.2

2.0

1.9

2.2

2.2

3.1

2.6

2.4

2.8

3.6

2.2

2.1

4.2

4.2

3.9

4.2

49

27

18

14

13

13

9.4

8.4

9.0

6.6

Mean

4.30

11.8

5.98

13.0

Sept.

8.4

9.0

7.2

5.5

4.4

4.6

4.6

3.6

4.2

9.0

9.4

6.0

5.1

4.2

3.6

3.9

9.8

27

11

4.8

4.2

3.1

3.0

2.8

2.8

2.6

2.6

2.8

2.8

-

Runoff in 

acre-feet

265

8,510

172

4,260

356

9,380

* Winter discharge measurement made on this day. 

a No gage-height record (stage-discharge relation affected by ice during most of period); 

computed on basis of 1 discharge measurement and weather records.

Note.- Stsge-diseharge relation affected by ice Nov. 19, 22, 26-30, Dec. I, 3, 4, 8-28.
148 DOLORES RIVKR BASIN

Horsefly Creek near Sams, Colo.

Location.- Water-stage recorder, lat. 38" 12', long. 108°03', in NVf£ sec. 35, T. 46 N., 

R~T~ir~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 1947 (no winter records 1942-45).

Extremes.- Maximum discharge during year, 319 second-feet Apr. 20 (gage height, 4.18

reet); no flow Oct. 1, 2 and probably at times during period of no gage-height record.

1942-47: Maximum discharge, 1,030 second-feet May 12,13.44 (gage height, 5.43 

feet), from rating curve extended above 500 second-feet; no flow at times each year.

Remarks - Records good Apr. 16 to June 30, remainder poor. A few small diversions above

Discharge, in second-feet, water year October 1946 to September 1947

Day

I

2

3

4

5

6

7

8

9

10

H

12

13

14

15

16

17

1819

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4

.6

.5

Nov.

0.4

.3

.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

-

Dec.

> 0.2

(»)

Jan.

> 0.1

Feb.

> 0.4

-

Month

December ...................................

Calendar year 1945 ......................

llarch. .....................................

May. .......................................

September ..................................

Water year 1946-47 ......................

Mar.

O.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.6

.6

.7

1.2

1.3

1.4

1.1

.9

*.9

.9

1.0

1.2

1.4

1.7

Apr.

1.6

1.8

2.1

1.9

1.7

1.8

2.1

2.9

5.0

6.8

6.4

9.0

13

32

52

96

118

102

107

104

81

65

43

38

32

39

42

31

40

-

Second 

foot-days

6.2

2,824.6

6.6

1,820.1

May

45

43

38

31

26

20

17

15

14

16

16

25

22

14

15

18

13

11

8.4

7.2

5.8

5.4

5.2

4.2

s.r

3.6

4.2

3.6

2.8

2.0

Maximum

346

45

.7

134

June

1.6

1.3

1.3

3.7

2.8

1.8

1.4

1.0

.8

.6

1.1

3.7

4.6

2.8

1.8

1.2

.9

1.4

1.9

6.8

5.6

3.8

2.4

2.1

1.6

1.7

1.3

1.2

1.0

-

Minimum

0

.1

0

July

0.9

.7

.6

.6

.5

.6

.5

.3

.3

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.5

.6

1.6

1.3

.a

.6

.5

.5

.6

.6

.8

.6

Mein

.2

7.74

2 15

.22

4.99

Sept.

0.4

.2

.3

.3

.2

.2

.2

.1

.1

.7

.6

.3

.3

.3

.2

.2

.2

.2

.2

.3

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Runoff in 

acre- feet

12

5,590

13

3,610

* Winter discharge measurement made on this day.

Note.- Periods of backwater from beaver dam Oct. 1 to Nov. 25, Mar. 26 to Apr. 15 and no gageheight record Nov. 26 to Mar. 25 (stage-discharge relation affected by backwater fi-ora beaver dam and 

ice;; discharge computed on basis of no flow observation on Oct. 1, 3 discharge measurements, and 

weather records.
DOLORES RIVER BASIN 149

Cottonwood Creek near Nucla, Colo.

Location.- Water-stage recorder, lat. 38°16', long. 108°22<, in sec. 1, T. 46 N., R. 14 

w., naif a mile upstream from North Fork and 10 miles east of Nucla.

Drainage area.- 43 square miles.

Records available.- May 1942 to September 1947, (no winter records 1942, 1943, 1945). 

(November 1941 to April 1945?. in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 35 second-feet Aug. 29 (gage height, 2.24 

reet); no flow Jan. 1-20, Mar. 1-18.

1942-47: Maximum discharge, 276 second-feet May 1, 1945 (gage height, 4.48 feet), 

from rating curve extended above 130 second-feet; no flow at times.

Remarks.- Records fair above 1 second-feet and poor below. A few small diversions above 

station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1917

Day

1

2

3

4

5

6

7

8

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

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

Nov.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

».l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Dec.

0.1

.1

.1

.1.1

.1

.1.1

.1

.1

.1.1

.1.1.1

.1.1 ».l

.1.1

.1

.1.1.1.1

.1.1

.1

.1.1

.1

Jan.

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1.1.1

.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

».l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

_

_

-

Month

October ....................................

November . ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April .....................................

May. .......................................

June .......................................

July.... ...................................

August .....................................

September ..................................

Water year 1946-47 ....... ..............

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

»0

0

.1.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.2

.2

Apr.

0.2

.2

.2

.2

.2

».2

.3

.8

1.7

1.1

1.0

.5

.5

3.6

7.4

7.4

7.4

8.3

7.7

9.4

14

15

11

11

7.7

6.6

5.2

7.1

6.6

6.0

-

Second- . 

foot-days

6.4

4.0

3.1

526.1

1.1

2.8

1.8

148.5

276.1

48.9

11.1

10.3

7.9

522.0

May

6.3

10

13

15

15

13

10

8.3

7.7

10

8.9

15

16

17

15

15

11

8.9

8.9

7.4

6.6

6.0

5.7

4.9

3.8

4.7

4.7

2.3

2.0

2.0

2.0

Maximum

0.3

.2

.1

17

.1

.1

.2

15

17

2.8

.7

2.9

1.5

17

June

2.0

1.6

1.3

1.7

1.4

1.3

1.1

1.0

1.1

1.3

1.7

2.7

2.7

2.3

1.7

1.4

.9

.8

1.0

1.3

2.1

2.8

2.7

2.3

2.1

1.8

1.5

1.3

1.1

.9

-

Minimum

0.2

.1

.1

.1

0

.1

0

.2

2.0

.8

.3

.2

.1

0

July

0.7

.6

.5

.5

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.5

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Aug.

0.2

.2

.2

.3

.3

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.7

.4

.2

.2

.2

.2

.2

2.9

.5

.2

H' -in

0.21

.13

.10

1.44

.04

.10

.06

4.95

8.91

1.63

.36

.33

.26

1.43

Sept.

0.2

.1

.1

.1

.1

.2

.2

.3

1.5

.7

.2

.2

.2

.2

.2

.2

.2

.2.2*

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

-

Runoff in 

acre-feet

13

7.9

6.1

1040

2.2

5.6

3.6

295

548

97

22

20

16

1040

Winter discharge measurement made on this day. 

Note.- Ho gage-height record Nov. 19 to Mar. 16 (stage-discharge relation affected by ice during 

titir-e period); discharge computed on basis of 3 discharge measurements and weather records. Stage 

iseharge relation affected by ice Nov. 11-18, Mar. 17 to Apr. 5.
150 DOLORES RIVER BASIN

Naturita Creek near Norwood, Colo.

Location.- Water-stage recorder, lat. 37°58', long. 108° 18', in SEij sec. 20, T. 43 N., R. 

13 W., 500 feet downstream from East Pork and 11 miles south of Norwood. Datum of 

gage is 7,601.12 feet above mean sea level (Bureau of Reclamation datum).

Drainage area.- 27.7 square miles.

Records available.- October 1941 to September 1947 (no winter records 19^1-45). (October 

to December 1940, May to September 1941 in files of Bureau of Reclamation.)

Extremes.- Maximum discharge during year, 323 second-feet Aug. 21 (gage teight, C. 95 

feet), from rating curve extended above 200 second-feet on basis of slope-area determination at gage height 4.80 feet; minimum daily, 0.2 second-foot Aug. 2. 3, sett. 

25-28, 30.

1941-47: 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 Sept. 13-16, 18, 22-25, 19<»5.

Remarks.- Records fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

0.6

.7

1.2

9.0

3.5

2.3

1.8

1.6

1.5

1.2

1.0 '.7

.6

.6

.5

.5

.9

.7

.6

.6

.6

.6

.6

.5

.6

.6

.6

1.1

19

4.8

2.0

Nov.

1.6

1.0

1.4

1.0

1.2

1.0

1.2

1.0

1.6

1.4

1.4

1.5

2.0

2.3

2.3

1.7

1.7

1.5

1.4

1.3

4.5

4.5

2.3

2.1

2.3

2.0

2.3

2.8

2.8

2.3

-

Dec.

1.7

1.8

1.4

1.4

1.7

1.7

1.7

1.6

1.5

1.4

1.2

1.4

1.5

1.6

1.7

*1.4

1.4

.3

1.0

.3

.3

1.0

1.6

2.1

2.5

3.0

2.6

3.5

6.6

3.0

1.0

Jan.

1.8

Feb.

> 4.8

(*)

_

_

-

Month

October. ........................... . .

November ........ ................ .....

December ...................................

Calendar year 1946 .................. ...

January. ................................. .

February ............................. .

March. .....................................

April. .......... ...................

May.................................... ...

June ...................................

July. ............... ......................

August ..:...................... .........

September. .................................

Water year 1946-47 ......................

Mar.

4.6

5.4

5.4 '5.3

6.4

5.3

6.0

6.4

7.2

8.0

8.2

8.0

9.0

10

11

14

19

*b23

b22

b!9

b21

18

12

11

9.0

12

10

12

12

13

11

Apr.

8.7

9.0

8.7

6.0

7.5

3.8

3.3

3.3

*4.0

5.2

4.2

3.8

3.2

2.6

2.6

2.8

3.0

3.3

4.0

4.2

5.0

5.2

4.3

5.8

4.8

4.5

5.5

6.3

5.8

2.S

-

Secondfoot-days

61.1

57.9

56.4

1,203.1

55* 8

134.4

545 . 2

143^5

244.3

103.3

56.4

83 7

49! 9

1,391.9

May

2.3

2.1

5.8

14

IS

14

7.8

7.5

6.9

12

17

18

14

11

12

13

8.4

7.2

6.6

5.2

4.5

4.0

5.2

4.5

4.0

4.0

3.5

4.0

4.2

3.0

2.5

Maximum

19

4.5

6.6

46

23

9.0

18

10

6.9

22

11

23

June

2.5

2.3

2.0

5.8

3.2

2.5

2.1

1.6

1.4

1.6

4.5

6.6

4.5

3.3

2.6

2.3

1.6

2.3

2.6

2.5

10

9.5

6.9

4.5

3.8

3.0

2.5

2.0

1.7

1.6

Minimum

O.E

\.<

.!

.;

4.i

Z.f

2.1

1.*

B t

,'.

.!

Jul-'

1.7

1.5

1.5

1.2

1.0

1.7

F. 5

f.O

4.5

1.8

1.2

1.1

1.0

1.2

6.9

S.O

2.8

2.1

2.0

2.0

1.8

2.1

1.7

1.2

.9

.8

.8

.8

.6

.6

.4

Aug.

0.3

.2

.2

.6

.8

.5

.4

.6

.6

.8

.6

1.1

2.1

1.4

.6

1.0

16

2.3

2.5

1.7

14

22

3.0

1.7

1.1

1.1

1.2

1.4

1.1

1.8

1.0

Mean

j 1.97

) 1.9S

3 1.82

3.30

1.8

4.8

11.1

4.78

I 7.88

t 3.44

1 .82

2.70

1.66

3.31

Sept.

0.8

11

2.1

1.0

.9

1.2

1.5

.6

5.2

10

2.0

.9

.7

.6

.6

.5

3.1

3.5

.6

.4

.4

.4

.3

.3

.2

.2

.2

is

.2

Runoff in 

acre-feet

121

115

112

2,390

111

267

685

285

485

205

112

166

qq*/*/

2,760

* Winter discharge messurement made on this d-jy. 

b Stage-diaoharge relation affected by ice.

Note.- No gage-height record Dec. 30 to Mar. 17 (stage-discharge relation iffected by iue during 

most of period;; discharge computed on basis of 1 discharge measurement and weather records.
DOLORES RIVER BASIN 151

Tabeguache Creek near Wucla, Colo.

Location.- Water-stage recorder, lat. 38 0 22', long. 108°20', in SE-j sec. 31, T. 48 N. , R. 

13 W., 1 mile downstream from head gate of Glencoe ditch and 13 miles northeast of 

Hue la.

Drainage area.- 20.7 square miles.

Records available.- April 1946 to September 1947.

Extremes.- Maximum discharge during year, 126 second-feet Apr. 27 (gage height, 3.05 feet) 

from rating curve extended above 40 second-feet; minimum daily recorded, 0.1 secondfoot Oct. 1, Aug. 3, but may have been less 'luring period of no gage-height record. 

1946-47: Maximum discharge, that of Apr. 27, 1947; no flow at times.

Remarks.- Records good above 20 second-feet and fair below except those for period of no 

gage-height record, which are poor. Diversion above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

0.1

.2

.6

1.2

1.6

1.0

.9

.8

.7

.5

.4

.3

.3

.3

.3

.4

.9

.8

.6

.5

.5

.4

.4

.5

.5

.4

.4

.6

.9

1.2

.8

Nov.

0.6

*.5

.5

.4

.4

.4

.4

.5

.5

.5

.4

.4

.4

.5

.5

.5

.4

.4

.5

.4

.4

.4

.4

.5

.7

.7

.6

.5

.6

.6

-

Dec.

0.

b!

b..

Jan.

. 0.3

Feb.

> 0.4

-

Month

October ....................................

November ......................... .........

December ..................................

Calendar year ......................

January .................................. .

February ........................ .... .....

March ...... ...............................

April. ....................................

May ........................................

June .... . . .......... ............ .......

July. ... ......... ........... ............

August ............. .............. ........

September. .................................

Water year 194R-47 .... .... ............

Mar.

0.6

Apr.

2.0

2.5

3.0

2.7

2.5

3.2

5.0

8.0

11

12

11

12

15

18

23

23

27

29

28

35

44

48

45

41

35

31

32

33

31

31

-

Secondfoot-days

19.0

14.5

12.5

_

9.3

11.2

643 9

1,186.'4

134.8

22 . 6

30.5

23.7

2,127.0

May

35

52

54

58

52

51

50

40

38

44

41

52

53

64

62

62

56

46

40

35

31

27

25

21

IB

15

14

14

12

11

S.-i

Maximum

1.6

.7

.5

-

4-8

63

10

1.7

10

1.6

63

June

8.8

7.8

7.5

10

7.8

6.0

5.4

4.3

3.1

2.4

4.1

4.8

4.6

4.6

2.9

2.2

1.7

1.9

1.7

1.6

5.4

8.8

7.2

4.3

3.8

3.1

2.9

2.4

2.0

1.7

Minimum

0.1

.4

.2

-

2.0

9.4

1.6

.2

.1

.5

-

July

.6

.3

.3

.3

.9

.2

.6

.2

.2

.7

.7

.6

.5

.5

1.1

1.7

.6

.4

.4

.3

.3

.7

.7

.4

.2

.2

.2

.2

.2

.2

.2

Aug.

0.2

.2

.1

.2

1.2

.6

.4

.5

.5

 .4

.9

1.3

.5

.4

.3

.4

.5

.4

.3

.3

.4

10

2.2

1.2

.9

.8

.7

.7

.7

2.4

.9

Mean

j.ei

.48

.40

-

.3

.4

.6

21 5

33!3

4.49

.73

.98

.79

5 . 33

Sept.

0.7

.6

.5

.7

1.0

.1

.O

.9

.2

.6

.3

.1

.9

.9

.8

.8

.9

.8

.7

.7

.7

.5

.5

.6

.6

.5

.5

.6

.5

.5

-

Runoff in 

ao re-feet

38

29

25

-

18

22

37

1.230

2,350

267

45

60

47

4,°20

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height records Dec. 9 to Apr. 14 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of weather records.

852060 O - 49 - 11
153 DOLORES RIVER BASIN

Taylor Creek near Gateway, Colo.

Location.- Water-stage recorder, lat. 38°31i, long. 109°07', in sec. 24, T. 26 S., R. 

at> K., in Utah, a quarter of a mile downstream from South Taylor Cree'c and 12'miles southwest of Gateway.

Drainage area.- 12 square miles.

Records available.- October 1944 to September 1947 (no winter records 1944-46).

Extremes.- Maximum discharge recorded during year, 50 second-feet Apr. 17 (gage height, 

i.ay reet), from rating curve extended above 18 second-feet, but may have been higher 

during period of no gage-height record; minimum daily recorded, 0.1 sscond-foot Oct 1 

1944-47: Maximun. discharge, 413 second-feet Aug. 6, 1945 (gage height, 5.72 feet), 

from rating curve extended above 26 second-feet by logarithmic plotting- no flow at 

times June to August 1946.

Remarks.- Records fair except those for periods of no gage-height records, which are poor. 

MO diversions above station.

Discharge, in seccnd-feet. water year October 1946 tc September 1947

Day

Xz

3

4

5

6

7

8

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

1.6

* .5

.5

.7

.8

.5

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.9

1.9

.9

.7

Nov.

0.7

bl.O

bl.O

.5

.5

.5

*.5

 bl.O

bl.O

b.8

b.7

.6

.7

.8

.7

.6

.5

.5

.5

.6

.6

.6

.6

b.9

bl.3

bl.l

b.9

.6

.7

.6

-

Dec.

0.7

.6

.6

.6

.7

.8

.8

1.3

.7

.7

.7

.7

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.6

.6

.6

.7

.7

b.6

.6

.6

.6

Jan.

> 0.6

Feb.

, 0.6

-

Month

October. ...................................

November . ........................ .........

December . ................................ .

Calendar year .....................

January ............................ ... ...

February ............................. .....

March. .......................... . . ..... .

April ......................................

Bay. ......................................

June ...................................

July. ........................... ..........

August. ....................................

September. .................................

Water year 1946-47 ................ .....

Mar.

2.5

Apr.

12

10

16

15

14

12

12

13

14

11

16

13

20

3O

32

29

*28

25

23

27

28

23

18

16

13

14

18

18

16

18

Seccndfoct-days

18.8

21.6

2O. O

_

18.6

16.8

77.5

554

427.3

107.1

12.8

8.0

6.6

1,289.1

May

19

21

24

25

25

25

23

20

18

25

20

18

14

12

15

14

11

9.6

8.7

8.7

9.2

7.3

7.3

6.9

6.1

6.1

6.4

6.9

5.8

5.3

5.0

Maximum

1 l'.Z9

1.3

_

32

25

8 . 2

1.3

.5

.5

32

June

4.7

4.4

5.3

8.2

5.8

5.3

4.7

4.4

4.4

4.2

3.9

3.9

3.3

2.9

2.6

2.2

2.2

2.2

2.4

2.1

5.3

5.6

3.4

2.9

2.4

2.1

1.8

1.6

1.5

1.4

-

Minimum

0.1

.5

.5

_

10

5.0

1.4

.2

.2

.2

.1

July

1.2

1.0

.9

.9

.6

.6

.5

.5

.7

.5

.4

.3

.3

.3

.4

.3

.3

.3

.3

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

Aug.

0.2

.2

.2

.3

.3

.2

.2

.2

.3

.2

.3

.2

.5

.2

.2

.2

.2

.2

.2

.2

.4

.5

.2

.4

.2

.2

.2

.3

.3

.4

.2

Mean

0.61

.72

.65

_

.6

.6

2.5

IF). 5

13.8

3.57

.41

.26

.22

3.53

Sept.

0.2

.2

.3

.2

.2

.2

.2

.2

.3

.5

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

-

Runoff in 

acre feet

37

43

40

_

37

33

154

1,100

848

212

25

16

13

2,560

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 29 to Apr. 16 (stage-discharge relation affected by ice during 

moat of period), Sept. 8-30: discharge computed on basis of weather records and records for stations 

on nearby streams.
DOLORES RIVER BASIN 153

Roc Creek near Uranium, Colo.

Location.- Water-stage recorder, lat. 38°26', long. 108°56', in SE£ sec. 2, T. 48 N., R. 

J.9 W., at La Sal National Forest boundary, l£ mile west of Uranium.

Drainage area.- 69.5 square miles.

Records available.- August 1944 to September 1947 (no winter records in 1945).

Extremes.- Maximum discharge during year, 145 second-feet Aug. 22 (gage heifh't, 2.27 

Feet, from rating curve extended above 25 second-feet; minimum daily, 0.6 second-foot 

Aug. 3.

1944-47: Maximum discharge, 146 second-feet Aug. 6, 1945 (gage height, 4.69 feet, 

site and datum then in use), from rating curve extended above 40 second-feet; no flow 

July 7, 1946.

Remarks.- Records good above 10 second-feet and fair below except those for periods of 

no gage-height record, which are poor. Two small diversions above station for irrigation. Most of flow of Oeyser and Deep Creeks in Roc Creek Basin is diverted to Buckeye 

Reservoir in West Paradox Creek Basin; release from Buckeye Reservoir (5,320 acre-feet 

in 1947) is approximately equal to amount diverted from Roc Creek Basin.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

7 

8

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

1.8

1.8

1.7

2.3

2.0 

1.8

1.7

1.7

1.4

1.4

1.5

1.5

1.4

1.4

1.6

1.6

1.4

1.4

1.5

1.4

1.5

1.4

1.4

1.4

1.5

1.7

2.7

2.3

1.7

Nov.

1.3

1.3

1.7

1.6

1.5

1.7 

1.9

1.9

1.9

2.1

2.3

2.1

2.3

2.2

1.6

l.S

2.1

2.2

1.9

1.9

1.8

2.0

2.2

1.3

1.7

2.2

' 2.3

2.1

1.9

-

Dec..

1.8

2.0

1.9

*2.3

1.8

2.0 

1.3

2.1

2.6

2.2

1.8

2.1

2.1

2.0

2.2

2.2

1.6

bl.5

bl.5

bl.6

bl.6

bl.7

bl.8

bl.8

bl.9

b2.0

2.1

b2.2

2.8

2.9

Jan.

2.7

*2.9

3.0

3.1

3.2

2.7 

2.5

2.2

2.1

2.1

2.2

2.5

2.1

1.9

1.8

2.1

2.2

2.4

2.6

2.7

2.7

2.8

3.0

3.1

3.3

3.4

3.5

2.7

2.4

2.6

Feb.

2.3

2.4

2.6

2.7

2.7

2.5 

2.4

2.3

2.3

2.4

2.5

2.6

2.6

2.4

2.3

2.4

2.4

2.4

2.4

2.4

2.6

2.4

2.5

2.4

2.4

2.5

2.6

-

-

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April ................................ ... .

May...................................... .

July. ......................................

September . .................................

Water year 1946-47 ...... ...............

Mar.

2.8

2.9

3.1

3.1

2.8

*2.4 

2.4

2.2

2.1

2.0

1.9

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

2.1

2.6

3.5

2.8

2.4

4.0

6.0

11

15

21

*20

Apr.

12

11

24

21

16

16 

19

19

12

16

12

15

26

40

32

28

27

30

34

29

24

17

14

12

12

13

14

12

16

-

Secondfoot-days

61.2

1,614.7

42.5

2,147.0

May

24

27

32

32

30

25 

23

22

34

34

30

23

17

20

24

16

14

13

12

12

11

11

11

9.5

8.6

8.6

9.8

9.2

7.7

6.5

Maximum

2 3

2.9

21

34

2.6

40

June

6.5

6.1

6.5

14

9.2

6.3 

5.7

5.9

5.9

5.9

12

13

12

11

11

11

11

11

10

19

23

15

12

12

11

10

9.8

9.5

9.5

-

Minimum

1.3

0

1.0

.6

July

9.2

8.9

8.6

8.3

7.7

7.1 

6.8

9.2

b.l

3.6

1.7

1.3

1.3

1.4

1.3

1.0

.9

.8

.8

.8

1.5

1.7

1.1

.9

.8

.8

.8

.8

.8

.8

Aug.

0.8

.7

.6

1.0

2.6

1.5 

1.7

1.5

1.4

1.7

1.7

5.7

2.4

1.6

1.3

1.4

1.3

1.1

1.1

5.2

9.4

2.1

1.8

1.7

1.5

1.5

1.4

al.6

al.7

al.8

Meat

1.97

*.42

1.42

£-.88

Sept.

al.3

al.3

a2.1

al.7

1.3

1.6 

1.4

2.1

2.6

1.7

1.6

1.3

1.3

1.3

1.3

1.3

1.3

1.2

1.3

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.3

1.3

-

Runoff in 

acre- feet

121

3,200

84

4,260

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of records for stations on neerby streams. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 31 to Mar. 30 (stage-discharge relation affected by Ice during 

most of period;! discharge computed on basis of 2 discharge measurements and veather records.
154 DOLORES RIVER BASIN

Deep Creek near Paradox, Colo.

Location.- Water-stage recorder, lat. 38°30', long. 109°09', in NEj sec. 3, T. 27 3., R. 

25 £. , 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 1947 (no winter records in 1945).

Extremes.- Maximum discharge recorded during year, 0.1 second-feet June 11 (gage height, 

l.ia reet); minimum daily, 0.1 second-foot at times during summer.

1944-47: Maximum discharge, that of June 11, 1947; maximum gage height, 1.26 feet 

May 3, 1945; minimum daily discharge, 1.1 second-foot at times each year.

Hemarks.- Records poor. Most of flow diverted a quarter of a mile above station to Buckeye "Reservoir in West Paradox Creek Basin.

Discharge, in second-feet, water year October 1946 to September 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.

0.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.7

.7

.6

.5

Nov.

0.5

*

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.3

.3

.3

.3

.3

.3

-

Dec.

0.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

Jan.

0.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

Feb.

\

0.4

_

_

-

Month

October. ................................

November . ........................ .........

December ...................................

Calendar year 1946 ......................

January. ................................. .

February ............................. . . .

March. .............................. ......

April .................................. ...

May. ......................................

June .......................................

July. ............... ......... ........

August .....................................

September . .................. ..........

Water year 1946-47 .... ............ ...

Mar.

' 0.8

Apr.

1.0 1.1

1.4

1.3

1.2

1.1

1.2

1.4

1.2

1.0

1.2

1.0

1.3

1.6

2.2

2.2

2.2

2.2

2.1

2.1

2.1

1.9

1.6

.9

.8

.8

.8

.8

.8

1.1

-

Secondfoot-days

11.6

16.0

13.3

373 * 5

14.5

11.2

24.8

41.6

17.0

1C1.9

6l!s

3.4

4.7

341.6

May

1.6

1.4

.8

.8

.6

.5

.5

.4

.5

1.6

1.6

1.2

.7

.5

.4

.3.3'

.2

.2

.2

.2

.3

.3

.2

.2

.3

.3

.3

.2

.2

.2

Maximum

0.7

.7

.5

.5

_

2.2

l.S

7.6

6.4

.2

.2

7.6

June

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.1

7.6

6.4

6.2

6.2

6.6

6.0

5.8

5.6

5.0

5.6

5.8

5.8

6.6

6.4

6.4

6.4

6.4

6.0

6.0

-

Minimum

0.2

.3

.3

.1

.4

_

.8

.2

.2

.1

.1

.1

.1

Jul-'

5.8

6.2

6.4

6.2

6.0

6.2

6.0

8.2

5.0

3.2

.3

.3

.3

.3

.3

.3

.2

.2

.1

.1

,2

.2

.2

.2

.1

.2

.2

.2

.2

.2

.1

Aug.

0.1

.1

.1

.2

.2

.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

Mean

0.37

.53

.43

1.02

.47

.4

.8

1. 39

.55

4.06

1.99

.11

.16

.94

Sept.

0.1

.1

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Runoff in 

acre feet

23

32

26

741

29

22

49

83

34

242

122

6.7

9.3

678

Note.- Ho gage-height record Jan. 8 to Apr. 16 (stage-discharge relation probably affected by Ice

during "part of period); discharge computed on basis of weather records.
GREEN RIVER BASIN 155 

Green River at Warren Bridge, near Daniel, Wyo.

Location.- Water-stage recorder, lat. 43°00 I , long. 110°07 I , in sec. 8, T. 35 N., R. Ill 

w., at Warren Bridge, 12 miles north of Daniel. Datum of gage is 7,46f.09 feet above 

mean sea level, datum of 1929.

Drainage area.- 468 square miles.

Records available.- October 1931 to September 1947.

Average discharge.- 13 years (1933-36, 1937-47), 492 second-feet.

Extremes.- Maximum discharge during year, 2,630 second-feet May 11 (gage height, 4.49 

feet); minimum daily, 115 second-feet Mar. 1-3.

"1931-47: 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 1946 to September 19J-7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

262

268

279

279

279

276

265

259

256

244

244

226

229

226

226

226

223

223

217

208

205

*205

205

205

199

202

211

220

232

220

190

Nov.

152

135

b!30

135

142

150

160

158

150

140

145

152

162

175

175

165

170

*175

180

175

160

170

170

160

140

150

160

170

170

170

-

Dec.

175

170

170

160

160

165

170

170

170

165

160

165

170

170

170

*155

140

145

155

160

165

165

155

140

140

145

145

135

130

120

120

Jan.

120

125

125

130

130

130

130

130

130

135

135

135

135

130

125

125

*125

135

135

135

140

140

140

140

135

135

130

125

125

125

130

Feb.

130

135

135

135

135

130

125

125

130

130

130

135

135

135

135

135

135

140

*140

140

140

140

140

140

135

130

125

120

_

_

-

Month

October. .................................

November. ........................ ........

December ................................. .

Calendar year 1946 ....................

January ..................................

February ............... ..................

March ......... ........ ...................

April. ................. ................

May.................... ...... ............

June ............ ....... . . ..............

July. ......... ... . . ...... .... ... .

August. ......... ..... .... ..... .......

September. ..... .... .... .... . ...

Water year 1946-47 . . . . ...............

Mar.

115

115

115

120

120

120

125

125

125

125

125

125

125

125

120

120

*120

120

125

130

130

135

130

130

130

135

140

145

150

155

160

Apr.

160

165

165

160

155

150

145

140

135

135

135

135

145

160

185

*b!94

b200

b220

b230

b255

b290

b280

262

235

256

290

336

419

485

567

-

Second 

foot-days

7,209

4,746

4,825

174,577

4,065

3,740

3,980

6,789

47,918

44,610

49,586

27,107

10,859

215,434

May

636

720

902

1,140

1,330

1,530

1,890

2,190

2,430

2,510

2,570

2,330

1,920

 1,650

1,520

1,460

1,500

1,500

1,430

1,370

1,360

1,380

1,310

,210

,200

,310

,470

,690

,640

,500

1,320

Maximum

279

180

175

2,060

140

140

160

567

2,570

2,290

2,260

1,480

443

2,570

June

1,320

1,340

1,390

1,440

1,310

1,320

1,290

1,300

1,650

1,800

1,590

1,310

1,120

1,090

1,160

1,310

1,530

1,700

1,790

2,010

2,280

2,290

1,840

1,360

1,190

1,260

1,470

1,600

1,410

1,140

-

Minimum

190

130

120

_

120

120

115

135

636

1,090

918

449

265

115

July

95f

918

1,12C

1,42C

1.60C

1,66C

1.73C

1,89C

2,10C

2.26C

2,19C

2,13C

2,04C

1,84C

1,68C

1.62C

1,69C

1,700

1.65C

1,59C

1.64C

1.68C

1,65C

1,66C

1,55C

1,420

1,31C

1.23C

1.20C

1.22C

1,240

Aug.

1,200

1,160

1,160

1,150

1,210

1,220

1,110

1,080

1,200

1,370

1,480

1,440

1*230

958

814

734

692

650

622

594

580

615

650

664

629

560

503

473

461

449

449

Mean

233

158

156

478

131

134

128

226

1,546

1,487

1,600

874

362

590

Sept.

443

437

413

401

407

419

407

407

401

395

375

355

327

293

276

272

265

314

370

370

360

340

336

345

360

375

365

355

340

336

-

Runoff in 

acre-feet

14,300

9,410

9,570

346,300

8,060

7,420

7,890

13,470

95,040

88,480

98,350

53,770

21,540

427,300

* Winter-discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 3 to Apr. 15 (stage-discharge relation probably affected by ice

during entire period]j discharge computed on basis of 5 discharge measurements and weather records.
156 GREEN RIVER BASIN

Green River near Fontenelle, Wyo.

Location - Water-stage recorder, lat. 42°07', long. 110°11', in SW£ sec. 20, T. 25 N., 

K. na W. , l-j miles downstream from Muddy Creek and 4 miles northwest of Fontenelle.

Drainage area.- 3,970 square miles.

Records available.- October 1946 to September 1947.

Extremes.- Maximum discharge during year, 10,500 second-feet June 22 (gage height, 7.46 

reetJ, from rating curve extended above 6,000 second-feet; minimum daily, 360 secondfeet Dec. 31, Jan. 1.

Remarks.- Records excellent 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 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

ao

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a670

a700

a720

750

757

757

757

757

844

900

876

860

844

844

844

844

844

844

828

820

813

806

799

792

785

785

799

930

1,130

1,080

960

Nov.

876

771

715

715

750

820

844

844

836

778

735

730

735

750

*828

785

680

730

680

630

610

606

695

750

720

690

771

745

715

757

-

Dec.

778

720

690

6B5

735

764

771

799

750

725

720

771

750

750

*764

745

626

603

600

620

660

700

620

540

510

560

590

600

450

380

360

Jan.

360

390

385

390

400

400

405

410

415

420

425

410

400

*400

395

390

390

395

410

420

435

450

460

470

480

470

450

410

390

380

380

Feb.

400

415

430

440

445

430

415

395

380

380

385

390

400

420

430

*440

455

480

510

540

560

570

560

540

510

485

490

510

-

.

-

Month

October ....................................

November ...................................

December. ............. ....................

Calendar year ......................

January. ...................................

February ...................................

 arch. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

490

500

520

540

540

520

520

530

550

570

600

630

690

780

900

1,100

1,350

*1,800

2,600

3,600

3,100

2,310

2,460

2,000

1,520

1,300

1,160

1,070

1,080

1,330

1,460

Apr.

1,330

1,330

1,270

1,260

1,100

990

930

876

868

852

836

820

*813

892

1,360

1,620

1,490

1,420

1,440

1,430

1,600

1,740

1,890

1,740

1,590

1,490

1,440

1,540

1,720

1,980

-

Secondfoot-days

25,739

22 291

20^336

.

12,785

12,805

38,120

39,657

163,820

194,440

142,540

77,490

32,300

782,323

May

2,100

2,100

2,300

2,640

3,040

3,520

4,050

4,820

5,520

6,330

8,640

9,480

9,510

8,130

6,720

5,820

5,250

5,120

5,120

4,980

4,820

4,820

5,100

4,920

4,480

4,200

4,520

5,520

7,020

6,870

6,360

Maximum

1,130

876

799

_

480

570

3,600

1,980

9,510

10,200

6,420

3,920

1,330

10,200

June

5,910

5,520

5,220

5,490

5,430

5,400

5,820

5,520

6,420

7,920

9,320

8,940

7,200

5,820

5,020

4,800

4,900

5,640

6,180

6,780

8,520

10,200

9,960

8,310

6,600

5,400

5,220

5,640

5,820

5,520

-

Minimum

670

606

360

_

360

380

490 Q-l *

OJ.O

2,100

4,800

2,900

1,370

910

360

July

4,8«0

4, EDO

3,720

3,790

4,320

4,650

5,100

5,350

5, £20

6,?70

6,420

6,150

5, £20

5,520

5,150

4, £20

4,680

4,f80

4,f80

4,420

4,350

4,380

4,4-80

4,f20

4,320

3,S80

3,640

3,J60

3,160

3, CIO

2.SOO

Aug.

2,940

2,920

2,920

2,880

2,880

2,760

2,670

2,950

3,030

3,300

3,920

3,880

3,640

3,300

2,900

2,640

2,460

2,280

2,120

2,000

1,920

1,960

2,000

1,890

1,820

1,770

1,700

1,650

1,560

1,460

1,370

Mean

830

743

656

_

412

457

1,230

1,322

5,285

6,481

4,598

2,500

1,077

2,143

Sept.

1,330

1,300

1,260

1,220

1,170

1,120

1,100

1,080

1,100

1,120

1,120

1,070

1,010

960

930

910

940

1,010

1,180

1,190

1,120

1,070

1,020

1,010

1,010

1,010

1,000

990

980

970

-

Runoff in 

acre-feet

51,050

44,210

40,340

_

25,360

25,400

75,610

78,660

324,900

385, 700

282,700

153,700

64,070

1,552,000

* Winter lischarge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station nerr Llnwo 

Note.- Stage-discharge relation affected by Ice Nov. Id-21, Dec. 19 to Mar. 21.
GREEN RIVER BASIN 157

Green River near Linwood, Utah

Location.- Water-stage recorder, lat. 40°58 r , long. 109°35 r , in SW£ sec. 29, T. 3 N., R. 

iil K., a quarter of a mile upstream from Henrys Pork, 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 1947.

Average discharge.- 19 years, 1,817 second-feet.

Extremes.- Maximum discharge during year, 17,100 second-feet June 13 (gage height, 10.39 

reet); minimum daily, 380 second-feet Dec. 31, Jan. 1.

1928-47: Maximum discharge, that of June 13, 1947; minimum discharge recorded, 196 

second-feet Nov. 27, 1934 (gage height, -0.10 foot).

Remarks.- Records excellent except those for period Dec. 1 to Mar. 25, which are fair. 

Diversions above station for irrigation.

Rating table, water year 1946-47, except periods of Ice effect

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

(Shifting-control method used Dec. 2-15, 22, 23, Mar. 16-23)

1.4 470 4.4 3,620

2.0 890

2.7 1,470

5.7 6,000

7.5 9,980

3.4 2,250 10.3 16.9OO

Discharge, in second-feet, water year October 1946 to September 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.

761

789

789

789

842

1,000

1,000

970

1,010

1,020

1,030

1,030

986

962

930

922

1,010

1,230

1,090

1,020

1,030

1,010

978

938

898

890

874

906

1,280

1,660

1,460

Nov.

1,390

1.23O

1,150

1,040

858

858

938

1,030

1,070

866

874

761

586

506

705

850

874

1,010

1,010

782

994

1,110

890

826

818

754

834

986

1,060

1,230

-

Dec.

1,270

1,140

1,190

1,220

1,040

930

994

1,110

1,170

1,190

1,090

*906

1,070

1,160

1,360

1,250

950

600

620

680

800

906

946

600

560

660

720

760

600

430

380

Jan.

380

420

400

420

425

430

430

430

*440

450

460

450

440

420

415

410

410

420

440

450

470

500

520

540

550

540

520

480

450

420

430

Feb.

450

470

500

520

520

480

470

460

460

470

*490

520

540

560

590

610

650

690

710

730

740

740

720

680

640

620

670

700

_

_

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March .............................. .......

April. ............................. .......

May............. ..........................

June .......................................

July... ....................................

August .....................................

September ..................................

Water year 1946-47 ......................

liar.

670

680

700

730

700

700

700

730

760

820

930

1,100

1,400

2,100

2,700

3,990

5,740

7,790

*8,590

8,100

7,480

6,220

5,700

5,000

4,370

3,310

2,740

2,460

2,260

2,160

2,170

Apr.

2

2

2

2

2

2

1

1

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

2

2

2

2

2

2

2

Secondfoot-days

31,104

27,890

28, 302

730,317

13,960

16,400

93,500

63,050

237 930

292)090

175,050

104,660

43,050

1,126,986

,290

,430

,380

,320

,210

,130

,990

,740

,600

560

620

540

460

570

590

550

880

170

120

110

170

320

550

760

840

640

470

340

290

410

-

May

2,580

2,860

3,100

3,230

3,760

4,880

5,980

6,860

7,900

9,090

11,100

12,800

14,000

13,500

12,800

11,300

9,760

8,140

7,310

7,090

6,880

6,560

6,500

6,760

7,050

6,620

6,320

7,120

7,460

8,830

9,790

Maximum

1,660

1,390

1,360

9,120

550

740

8; 590

2,840

14,000

16,700

7,070

6,380

1,870

16,700

June

8,830

8,230

7,840

7,420

7,290

7,400

7,050

7,330

7,400

7,700

10,600

14,300

16,700

14,300

11,100

8,730

7,810

7,440

7,640

8,730

10,500

13,400

15,200

15,500

13,300

10,400

8,140

7,090

7,350

7,370

-

Minimum

761

506

380

380

380

450

670

1,460

2,580

7,050

3,810

1,980

1,200

380

July

6,970

6,520

6,100

5,560

5,130

5,220

5,760

6,360

6,580

6,660

7,030

7,070

6,950

6,600

6,340

6,020

5,720

5,480

5,360

5,220

5,160

5,070

5,070

5,150

5,220

5,110

4,910

4,570

4,300

4,030

3,810

Aug.

3,680

3,6

3.E

3,5

20

60

90

3,590

3,560

3,E

3,4

3,*

40

00

70

3,750

6,380

5,6

5,0

4,7

20

90

70

4,460

4,010

3,6

3,3

3,1

20

20

40

2,930

2,730

2,5

2,4

2,4

60

30

30

2,420

2,370

2,2

2,2

2,1

2,0

90

80

20

50

1,980

Mean

1,003

930

913

2,001

450

586

3,016

2,102

7,675

9 736

5*647

3,376

1,435

3-088

Sept.

1,870

1,790

1,710

1,650

1,600

1,560

1,510

1,450

1,410

1,390

1,360

1,360

1,350

1,320

1,270

1,230

1,200

1,200

1,260

1,360

1,630

1,650

1,550

1,450

1,390

1,340

1,320

1,300

1,290

1,280

Runoff in 

acre-feet

61,690

55,320

56,140

1,448,000

27, 690

32,530

185, 500

125,100

471,900

579 400 347)200

207,600

85,390

2,235,000

* Winter-discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 16-21, Dec. 24 to Mar. 15.
158 GREEN RIVER BASIN

Green River at Green River, Utah

 Location.- Water-stage recorder, lat. 39°00', long. 110"09' , in NW^SW^ se:. 15, T. 21 S., 

RT~nr~E., 1 mile southeast of town of Green River, 22 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 1929.

Drainage area.- 40,600 square miles.

Records available.- October 1894 to October 1899, October 1904 to December 1911, June 

1924 to September 1947. December 1910 to June 1924 at site 7 miles downstream, published as Green River at Little Valley, near Green River.

Average discharge.- 48 years (1894-99, 1904-47), 6,740 second-feet.

Extremes.- Maximum discharge during year, 33,000 second-feet May 1 (gage height, 12.68 

reet); minimum daily, 1,080 second-feet Jan. 4, 5.

1894-99, 1904-47: Maximum discharge, 68,100 second-feet June 27, 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 period of ice effect, which are good. Diversions above station for irrigation. Records of water analyses and sediment loads for 

water year 1947 are given in Water Supply Paper 1102.

Discharge, in second-feet, water year October 1946 to September 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.

1,520

2,180

2,340

2,100

2,300

2,160

2,530

2,700

2,440

2,280

2,280

2,380

2,410

2,370

2,370

2,350

2,370

2,370

2,470

2,540

2,490

2,540

2,620

2,690

2,600

2,540

2,560

2,540

2,580

2,580

2,820

Nov.

3,240

3,190

3,140

3,490

3,490

3,440

3', 120

3,070

3,000

3,020

3,120

3,020

2,890

2,750

2,640

2,560

2,540

2,470

2,310

2,230

2,310

2,470

2,640

2,770

2,730

2,910

2,960

2,860

2,800

2,690

-

Dec.

2,620

2,710

2,800

2,890

2,910

2,960

3,020

3,000

3,340

3,240

3,070

2,890

2,860

2,820

2,820

2,890

2,800

2,690

2,580

2,290

1,530

1,670

1,720

* 1,700

1,840

2,230

2,310

2,270

2,000

*1,650

1,500

Jan.

1,350

1,150

1,150

1,080

1,080

1,210

*1,250

1,260

1,560

1,690

1,670

1,670

1,510

*1,460

1,450

1,510

1,510

1,450

1,450

1,420

1,420

*1,420

1,420

1,460

1,560

1,620

1,700

*1,790

1,790

2,000

2,040

Feb.

2,230

2,170

*2,120

2,060

2,020

2,000

2,040

2,190

2,270

*2,250

2,270

2,130

2,130

2,060

2,060

2,120

*2,190

2,290

2,450

2,600

2,840

3,490

4,100

4,460

4,950

4,490

4,190

3,930

_

-

Month

October. ........................... ...

November. ........................ ....... .

December .............. ....................

Calendar year 1946 ......................

January ............................. .... .

February. ..................................

March. ................ .............. ... .

April. .................... ............. .

Mnir way. ... ....... ...........................

June. . . ...................................

July. ......................................

August .................... ................

September. ............... . . .............

Water year 1946-47 ... . ................

Mar.

3,540

3,190

2,960

2,860

2,980

3,020

3,120

3,260

3,410

3,260

3,000

2,960

3,140

3,240

3,260

3,360

3,730

4,250

4,490

12,700

15,800

16,000

15,600

14,200

14,000

13,500

11,400

9,490

7,880

7,080

6,610

Apr.

6,610

7,350

7,880

7,790

7,150

7,110

7,430

7,270

6,690

5,880

5,180

4,880

4,720

4,750

4,950

4,650

4,340

4,310

4,820

6,320

6,880

7,430

8,420

8,460

10,200

11,800

11,400

10,000

9,060

8,970

-

Second 

foot-days

75,020

85,870

77,620

1,774,000

46,100

76,100

207,290

212, 700

705,790

679,400

330,680

184,200

83,600

2,764,370

May

9,100

8,970

8,630

9,490

13,700

19,100

22,400

24,200

26,300

28,600

29,700

30 , 100

31,600

32,600

32,600

30 , 600

28,000

26,500

24,800

23,700

23,200

23,100

22 , 800

22,300

22,200

22,000

21,700

21,000

21,600

22,200

23,000

Maximum

2,820

3,490

3,340

18,000

2,040

4,950

16,000

11 , 800

32,600

30,000

17,400

8,630

3,870

32,600

June

23,000

21,900

20,900

20,600

21,200

20,900

21,200

21,500

20,800

21,800

23,000

24,000

25, 600

25,800

26,700

25,500

22,000

19,800

19,000

18,600

20,000

22,200

23,700

27,200

30,000

27,800

24,600

21,900

19,800

18,400

-

Minimum

1,520

2,230

1,500

1,420

1,080

2,000

2, 860

4,310

8,630

18,400

6,500

4,100

2,470

1,080

July

17,400

16,800

16,200

15,200

14,100

13,300

12,6CO

11,800

11,600

11, SCO

11,9CO

11, SCO

11,600

11, SCO

11,400

10,9CO

10,200

9,6?0

9,320

8,930

8,540

8,330

8,oeo

7,830

7,630

7,470

7,230

7,110

7,110

f6,880

f6,5CO

Aug.

f6,170

f5,740

5,350

5,150

5,050

5,220

5,280

5,180

5,250

5,490

5,700

5,740

6,460

6,320

8,420

8,120

7,510

7,000

6,650

6,090

6,020

8,630

7,920

7,080

f5,840

f5,080

f4,650

4,460

4,340

4,190

4,100

loan

2,420

2,862

2,504

4,860

1,487

2,718

6,687

7,090

22,770

22,650

10,670

5 942

2^787

7,574

Sept.

3,870

3,790

3,540

3,340

3,190

3,020

2,890

2,770

2,660

2,620

2,600

2,540

2,520

2,660

2,540

2,470

2,600

2,660

2,620

2,580

2,580

2,560

2,470

2,470

2,540

2,730

2,840

2,770

2,640

2,520

-

Runoff in 

acre-feet

148,800

170,300

154,000

3,519,000

91,440

150,900

411,200

421,900

1,400,000

1,348,000

655,900

365,400

165,800

5,484,000

* Winter discharge measurement made on this day.

f Fragmentary gage-height record; discharge computed from partly estimated f;age heights.

Note.- Stage-discharge relation affected by Ice Dec. 29 to Feb. 15.
GREEN RIVER BASIN 159

Beaver Creek near Daniel, Wyo.

Location.- Water-stage-recorder, lat. 43°00 I , long. 110°09 I , 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 1947 (no winter records In 1943).

Extremes.- Maximum discharge recorded during year, 530 second-feet May 2 (gage height,

7.09 feet), from rating curve extended above 250 second-feet; minimum daily 0 8 secondfoot July 29 to Aug. 8.

1938-47: Maximum discharge, 724 second-feet May 2, 1943 (gage height, 8.23 feet), 

from rating curve extended above 250 second-feet; no flow at times in most years.

Remarks.- Records good Apr. 22 to July 1, others fair above 5 second-feet a"d poor below. 

Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

2.0

2.4

2.5

2.4

2.6

3.2

5.5

8.0

10

13

12

12

13

13

13

13

13

13

13

13

13

*14

14

13

13

13

14

16

20

15

13

Nov.

10

( )

"

Dec.

> 11

Jan.

 10

(*)

Feb.

> 13

(*)

_

_

-

Month

October. ...................................

November . ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

Haroh ......................................

April. .....................................

Uav ay .........................................

June .......................................

July.. .....................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

15

(«)

'

Apr.

24

25

27

26

26

26

27

28

28

29

29

30

32

34

40

*47

50

52

50

58

100

135

161

176

176

190

269

349

423

415

-

Secondfoot-days

337.6

300

341

8,334.3

310

364

465

5» 167

2 929

63.4

195 2

19l!7

13,745.9

May

340

397

384

343

242

161

140

128

105

112

269

255

215

149

114

93

79

80

88

87

76

72

90

62

52

47

95

215

274

242

161

Maximum

20

_

_

423

397

306

12

11

7.4

423

June

143

116

151

179

140

306

204

142

220

200

178

163

116

70

51

42

29

37

39

38

74

45

32

28

20

16

58

50

25

17

-

Minimum

2.0

-

-

O

.

_

_

24

47

16

',

e'.o

.8

July

12

8.0

5.0

3.7

3.2

2.7

2.2

1.9

1.4

1.4

1.3

1.3

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.0

1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

.8

.8

.8

AU8-

0.8

.8

.8

.8

.8

.8

.8

.8

5.0

8.3

11

11

9.2

8.3

8.3

8.0

8.0

8.0

8.0

7.7

7.7

8.0

8.6

8.6

8.6

8.6

8.3

8.0

7.4

7.4

6.8

Hern

10* 9

11

22.8

10

13

15

103

167

97 6

2.0E

6.3C

6.3!

37.7

Sept.

6.8

6.8

6.8

6.6

6.6

6.6

6.3

6.3

6.4

6.5

6.5

6.4

6.2

6.3

6.4

6.2

6.8

7.4

6.8

6.2

6.2

6.2

6.2

6,2

6.0

6.0

6.0

6.0

6.0

6.0

-

Runoff in 

ao re-feet

670

595

676

16,540

615

722

922

6,110

10,250

5,810

126

387

380

27,260

* Winter discharge measurement made on this day.

Note.- No gage-height record Oct. J-21, 23-31, Nov. 1 to Apr. 21 (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.
160 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 7,349.88 feet above mean sea level, 

datum of 1929.

Drainage area.- 124 square miles.

Records available.- October 1931 to September 1947 (no winter records 1931-39, 1943,

Extremes.- 1945-46: Maximum discharge during year, 575 second-feet June 6 (gage height, 

 y.40 feet); minimum daily, 6.0 second-feet July 19-30.

1946-47: Maximum discharge during year, 744 second-feet May 11 (gage height, 2.58 

feet), from rating curve extended above 600 second-feet; minimum not determined (occurred during period of no gage-height record).

1931-47: Maximum discharge, 1,670 second-feet May 31, 1936 (gage height, 3.53 

feet), from rating curve extended above 800 second-feet; minimum daily, 1 second-foot 

July 22, 23, 1940.

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

which are poor. Diversions above station for irrigation.

Revisions.- Revised figures of discharge for the water year 1>946, superseding those 

puoiisned in Water-Supply Paper 1059, are given herein.

Discharge, In second-feet, 1945-4V 

1945-46

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.

27

26

26

26

25

24

24

24

24

23

22

23

25

24

 24

26

30

28

25

25

24

24

21

20

20

19

20

18

18

19

20

Nov.

20

20

21

2O 20 '

23

24

16

(*)

-

Dec.

14

Jan.

14 (*)

Feb.

15

_

_

-

Mar.

> 22

Apr.

 40

119

137

248

252

244

205

198

219

264

298

302

276

252

256

-

Hay

177

140

146

202

236

298

312

316

289

248

194

149

149

130

124

132

137

212

276

280

334

334

294

284

248

320

334

400

338

24O

202

June

184

194

244

366

462

486

438

385

37 O

385

348

32O

289

260

244

230

205

352

348

194

155

143

132

112

119

81

7O

68

67

61

July

60

54

54

49

46

34

32

27

13

9.2

8.0

7.5

7.5

7.5

7.5

6.8

6.8

6.8

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.O

6.0

6.0

6.8

AU6 .

6.8

6.5

6.5

6.5

6.5

6.5

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.5

6.5

6.8

6.5

6.5

6.5

6.2

6.5

Sept.

6.5

6.5

6.5

6.2

6.5

7.5

9.5

11

10

9.8

9.8

9.8

9.8

9.5

9.8

10

1O

10

10

11

11

11

11

11

11

11

11

11

11

10

-

* Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by Ice Nov. 8-25. No gage-height record Nov. 26 to Apr. 

16 (stage-discharge relation affected by Ice during moat of period); discharge computed on basis of 

2 discharge measurements and weather records.
GREEN RIVER BASIN 161

Discharge, in second-feet, of Horse Creek near Daniel, Wyo., 1945-47--Continued

1946-47

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.

10

12

12

11

12

13

18

26

28

26

24

24

25

25

25

25

25

26

»26

25

24

24

24

24

24

24

27

29

29

26

25

NOV.

1)24

b23

b25

b25

b25

b25

b24

21

620

b20

b!9

618

b!7

17

b!6

b!6

b!7

*b!8

18

17

16

15

14

14

14

13

13

12

12

12

-

Dec.

7

(*)

»

Jan.

> 6

Feb.

7

_

-

Mar.

12

Apr.

16

17

18

18

17

18

19

20

20

19

20

29

34

54

*79

83

90

96

92

103

103

99

85

79

79

79

94

114

146

155

-

May

149

188

272

352

410

474

486

450

510

516

659

516

380

320

316

316

361

370

361

343

390

415

380

338

352

380

405

480

375

289

236

June

236

256

294

284

260

338

268

280

395

338

325

268

216

188

188

202

216

216

212

226

256

194

149

124

117

114

135

132

114

99

-

July

85

74

57

51

37

33

31

34

36

35

31

28

25

24

21

19

20

21

18

18

17

15

14

13

13

13

13

13

13

13

13

Aug.

13

14

15

16

17

16

17

18

22

35

43

45

47

38

34

33

31

28

26

25

31

42

36

31

31-

30

28

28

27

27

24

Sept.

22

22

20

20

20

19

19

18

18

19

19

19

18

17

18

17

18

24

22

20

19

18

18

18

18

18

18

18

18

18

~

* Winter discharge measurement mad.e on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 19 to Apr. 11 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 1 discharge measurement and weather records.

Monthly discharge, in second-feet, 1945-47

Month

Depember. ......................... .- 

Calendar year .......................

April..................... 

Water year 1945-46 .......................

December ..................... i .... 

Calendar year 1946 ......................

February. .......................... 

March. .....................................

May..................... ...................

June .............................. 

August ............................. - 

Water year 1946-47 ......................

Second*- 

foot-days

724

516

434

.

434

420

682

3,910

7,475

7,312

. 515.4

196.7

288.7

22,907.8

540

217

22,688.8

196

1,895

11,789

848

868

24,319

Maximum

30

_

-

.

_

_

_

302

400

486

60

6.8

11

486

29

25

486

-

155

659

85

47

659

Minimum

18

-

-

-

_

-

-

-

124

61

6.0

6.2

6.2

6.0

10

12

-

-

.

-

16

149

13

13 

17

Mein

23.4

17.2

14

-

14

15

ZZ

130

241

244

16.6

9.62

62.8

22.5

18.0

7

62.2

6

7

63.2

380

27.4

28.0 

19.0

6F.O

Runoff in 

acre-feet

1,440

1,020

861

-

861

45,440

1,380

1,070

430

45,000

369

389 

738

3,760

1,680

1,720 

1,130

49,220
162 GREEN RIVER BASIN

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

Location.- Water-stage recorder, lat. 43°05', long. 110°01 I , In sec. 20, T. 36 N., R. 

11U W. , 2 miles downstream from New Fork Lake and 9 miles north of Cora.

Drainage area.- 36.2 square miles.

Records available.- October 1938 to September 1947 (no winter records in 1943).

exene aove secon-ee; maxmum gage eg, . ee ay , ; mnmum 

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 periods of no gage -height record, which are fair. 

Flow regulated by irrigation by New Pork Lake (capacity, 45,900 acre-feet). No 

diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

26

27

26

26

26 

26

26

25

25

24

24

24

24

23

21

18

13

11

10

9.4

9.1

9.1

9.1

9.1

9.1

9.1

9.4

9.8

9.4

9.4

9.1

Nov.

9.1

8.8

8.4

8.4

8.8

8.8

9.1

9.1

9.1

8.8

8. 8

8.4

8.4

8.4

8.4

a.o

8.0

7.8

7.8

7.8

7.8

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

-

Dec.

* 7.0

Jan.

> 6.4

Feb.

. 6.0

_

-

-

Month

October. ...................................

November. ........................ .........

December . ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June ......... .............................

July ................... ...................

August ....................................

September. ................................

Water year 1947 ... ..................

Mar.

» 7.0

Apr.

> 5.0

-

Secondfoot-days

536.1

250.0

217.0

16,260.8

198 . 4

168.0

217.0

150. 0

1,471.2

8,179.4

'400.6

383.5

18,350.2

May

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

3 .

2.

8.

185

185

185

225

318

306

Maximum

27

9.1

278

318

300

369

92

40

369

June

300

294

288

282

282

276

273

270

97

7.7

7.0

7.0

7.0

6.7

52

192

195

212

300

297

282

270

264

255

252

245

248

245

238

235

-

Minimum

9.3

7.£

-

2.4

6.7

92

4.E

5.2

-

July

232

228

235

369

369

369

3<53

357

354

354

351

351

345

359

359

356

333

3?4

315

309

21-2

185

182

182

182

170

94

94

92

92

92

Aug.

92

,92

74

5.5

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.9

4.9

4.9

5.2

5.5

5.8

5.8

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Mean

17.3

8.33

7.0

44.6

6.4

6.0

7.0

5.0

47 . 5

206 '

264

12.9

12.8

50.3

Sept.

5.2

5.2

5.2

5.5

5.5

5.5

5.5

8.0

20

20

20

20

20

19

20

20

20

20

13

6.4

6.4

6.4

7.0

7.7

8.0

8.0

8.0

8.0

20

40

-

Runoff in 

acre feet

1,060

496

430

32,260

394

333

430

298

2,920

12,260

16,220

795

761

36,400

Note.- No gage-height record Oct. 14-21, Nov. IE 

ice during part of period): discharge computed on 

Lake, and records for stations on nearby streams.

to May 18 (stage-discharge relation affected by 

asis of weather records, gate openings at New Po
GREEN RIVER BASIN lbd 

New Fork River near Boulder, Wyo.

Location.- Water-stage recorder, lat. 42°45', long. 109°44', in sec. 9, T. 3£ N., R. 108 

W., 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 1947.

Average discharge.- 32 years, 393 second-feet.

Extremes.- Maximum discharge during year, 3,340 second-feet June 22 (gage height, 6.39 

feet;; minimum daily, 116 second-feet Feb. 19-21.

1915-47: Maximum discharge observed, 12,300 second-feet June 17, 1918 (gage height, 

8.7 feet), from rating curve extended above 6,000 second-feet; mininvun, 42 second-feet 

Dee. 15-17, 1915.

Remarks.- Records good except those for period of no gage-height record, which are fair, 

flow partly regulated by New Fork Lake (capacity, 45,900 acre-feet). Diversions above 

station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1917

Day

1

2

3

4

5

6

7

8

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

133

130

130

136

136

' 141

144

136

133

127

130

133

127

130

127

124

127

130

130

*127

127

127

124

130

130

147

200

200

173

163

Nov.

144

138

138

144

152

155

158

160

165

165

162

160

158

152

152

152

155

158

158

*160

162

160

152

152

152

150

155

160

162

162

-

Dec.

160

155

150

155

160

158

155

150

148

142

140

140

142

144

146

*150

150

148

146

150

150

146

150

152

152

150

148

144

142

142

138

Jan.

136

136

138

140

142

142

140

138

136

134

132

132

134

134

134

134

134

*132

132

130

128

126

126

126

128

130

132

132

132

130

130

Feb.

130

130

128

128

128

128

126

126

126

126

126

122

120

118

118

118

118

118

*116

116

116

122

124

124

122

118

118

118

_

_

-

Month

October. ...................................

November. ..................................

December. .............................. ...

Calendar year 1946 ......................

January .................................. .

February. ..................................

March. .............. ......................

April ..................................

May........................................

June .......................................

July ....... ^ ............ .................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

120

122

124

128

130

130

128

130

134

138

140

142

142

140

138

*142

152

170

175

180

175

170

170

165

160

155

155

155

160

170

180

Apr.

180

175

180

130

180

180

175

170

180

175

170

170

210

250

265

270

*276

269

265

265

273

324

324

324

312

292

284

269

269

265

-

Secondfoot-days

4,274

4,653

4,603

129,782

4,130

3,428

4,620

7,121

36,818

55,070

53,410

21,996

6,713

206,836

May

265

269

292

342

430

570

790

,050

,310

,550

,770

,840

,800

,650

,500

,330

,220

,240

,240

,260

,170

,200

,340

,260

,140

,080

,230

,600

,860

,690

,530

Maximum

200

165

160

2,260

142

130

180

324

1,860

3,230

2,410

1,070

347

3,230

June

1,500

1,430

1,380

1,450

1,430

1,470

1,500

1,380

1,690

1,990

1,880

1,840

1,560

1,340

1,260

1,310

1,500

1,700

1,900

2,270

3,040

3,230

2,780

2,380

2,080

1,870

1,940

2,110

2,020

1,840

-

Minimum

122

13E

13E

126

116

12C

17C

26E

1.26C

1.07C

36]

166

116

July

1,640

,470

,430

,530

,700

,880

,000

,110

,310

,410

,360

,300

,190

,050

,880

,830

,760

,740

,710

,670

 ,630

,620

,650

,630

,530

,440

,330

,240

1,200

1,100

1,070

Aug.

1,050

1,050

1,070

964

826

757

735

752

802

880

1,010

1,020

988

916

844

784

713

647

592

555

545

565

515

485

470

455

435

425

405

380

361

Mean

138

155

148

356

133

122

149

237

1,188

1,836

1,723

710

224

567

Sept.

347

333

320

288

280

269

262

242

254

246

228

221

210

203

200

196

193

221

235

207

193

186

176

176

176

170

166

166

170

179

-

Runoff in 

acre-feet

8,480

9,230

9,130

257,400

8,190

6,800

9,160

14,120

73,030

109,200

105,900

43,630

13,320

410,200

* Winter discharge measurement made on this day.

I'r.te.- No gage-height record Nov. 2 to Apr. 16 (stage-discharge relation affected by ice during 

03t of period}: discharge computed on basis of 5 discharge measurements and weather records.
164 GREEN RIVER BASIN

Pine Creek at Pinedale, Wyo.

Location.- Water-stage recorder, lat. 42°52', long. 109°52', in sec. 33, T. 34 N., R.

1U9 W., at Pinedale, 3 miles upstream from mouth. Datum of gage is 7,165.40 feet

above mean sea level, datum of 1929. 

Drainage area.- 118 square miles.

Kecoras avaliaDle.- April to October 1904, May 1915 to September 1947. 

Average aiscnarge.- 32 years, 133 second-feet. 

Extremes.- Maximum discharge during year, 1,050 second-feet June 21 (gage heignt, 3.35

feet); minimum daily, 11 second-feet Oct. 22-26.

1904, 1915-47: Maximum discharge, 2,310 second-feet June 17, 1918 (gage height,

5.0 feet); minimum, 2 second-feet Apr. 1-26, May 6-8, 1931. 

Remarks.- Records good except those for Oct. 1 to Mar. 15, which are fair. Diversions

aDove 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).

Discharge measurements during year, in second-feet, of diversions above station

are given in the following table:

Beyer ......................

Total second -feet ........

Oct. 22

21.9

Nov. 21

0

.5

Date

Dec. 15

O

1.4

May 21

.2

.7

June 25

18.2

182

July 24

.8

138

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

9

11

12

13

14

15

16

17

19

20

21

22

23

24

25

26

27

29

31

Dot.

34

32

32

32

31

30

29

27

26

25

23

21

20

19

18

17

16

16

14

13

12

11

11

11

11

11

12

17

16

16

16

Nov".

21

35

35

36

36

36

36

36

36

35

35

35

34

34

34

34

 34

35

36

38

36

36

36

36

35

35

35

35

35

35

-

Dec.

36

36

36

35

44

1)46

1)48

47

45

45

45

51

b51

b51

 51

1)54

b56

1)58

1)56

1)54

1)54

1)54

52

50

47

48

50

50

50

50

50

Jan.

49

48

49

50

51

51

51

50

49

48

47

46

46

46

47

47

 47

46

46

46

44

44

45

45

44

43

42

41

41

41

41

Feb.

41

41

40

40

40

40

39

39

38

38

38

37

37

36

35

35

34

34

 33

32

32

33

33

33

32

32

32

31

.

_

-

Month

December. ..................................

Calendar year 1946 ......................

Haroh

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

31

31

31

31

31

31

31

30

30

30

29

29

29

28

28

»29

28

29

28

29

28

28

28

27

32

29

32

29

32

48

48

Apr.

48

50

50

50

50

50

50

48

47

47

45

44

44

45

43

43

43

43

44

39

36

38

39

39

38

38

26

18

19

19

Secondfoot-days

1,500

44,988

954

1 233

1,432

67,006

May

19

20

21

23

26

32

41

54

80

120

182

233

284

312

318

318

326

358 '

374

378

378

394

402

394

386

358

398

522

554

502

474

Maximum

34

58

906

48

137

1,010

June

450

406

394

386

362

358

336

336

398

442

522

604

538

486

474

494

534

559

640

845

1,010

972

900

818

730

710

735

730

670

608

Minimum

35

11

20

11

July

5J9

534

sea

6?1

7C5

7?5

8C1

872

940

984

1,000

9£0

9£4

8S4

ass

834

8C6

801

8C6

781

730

6S5

685

680

645

6C4

5S9

5f+

542

510

4SO

Aug.

483

483

430

294

197

212

230

259

294

362

474

510

494

454

422

382

350

329

301

273

259

242

191

197

191

188

179

173

161

152

146

Mean

48.4

123

300

47.7

184

Sept.

137

134

115

85

85

82

74

57

55

48

48

48

48

45

44

31

24

21

21

22

22

22

21

22

21

20

20

20

20

20

Runoff In 

ao re-feet

2,980

89,240

2,840

132,900

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 23 to Mar. 15 (stage-discharge relation probably affected by ice

during most of period); discharge computed on basis of 2 discharge measurements and weather records.
GREEN RIVER BASIN 165

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

Location.- Water-stage recorder, lat. 42°53', long. 109°43', In sec. 26, T. 34 N., R. 

1UB W., lj miles downstream from Little Half Moon Lake and 7 miles east of Pinedale.

Drainage area.- 8V.5 square miles.

Records available.- October 1938 to September 1947 (no winter records 1943-45).

Extremes.- Maximum discharge during year, 958 second-feet June 21 (gage height, 6.67 

reetj; minimum daily, 17 second-feet Oct. 25, 26.

1938-47: Maximum discharge, 1,090 second-feet June 23, 1943 (gage height, 6.73 

feet); minimum observed, 2.9 second-feet Nov. 10, 1944 (discharge measurement), but 

may have been less during period of no record.

Remarks.- Records excellent above 60 second-feet and fair below. Several small diversTons above station for irrigation.

Discharge, in seccnd-feet. water year October 1946 tc September 194-7

Day

1

2

3

4

5

6

7

8

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

21

21

22

22

22

22

22

22

22

22

21

21

21

20

19

19

20

19

19

19

19

19

18

17

17

22

33

33

32

32

Nov.

32

32

32

32

32

32

32

33

32

30

29

28

28

28

28

27

24

24

23

25

26

24

24

24

24

24

24

24

24

24

-

Dec.

25

25

24

24

25

27

28

27

26

25

23

28

32

33

34

34

49

45

45

45

45

45

42

35

35

36

40

40

40

40

40

Jan.

> 40

Feb.

' 37

_

-

-

Honth

October. ...................................

November ...................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April.. ....................................

May. .......................................

June .......................................

July... .................. .................

August

September. .................................

Water year 1946-47 .... .................

liar.

35

Apr.

39

39

40

42

50

44

46

50

44

46

46

47

48

50

52

50

50

52

52

54

58

64

72

74

76

76

76

76

76

79

-

Seccudfoct-days

678

825

1,062

29,978

1,240

1,036

1,085

1,668

14 399

15i791

12,930

4,936

1,310

56,960

May

84

92

110

154

221

329

457

577

673

730

764

737

663

577

502

448

433

439

445

445

448

472

499

475

439

433

493

599

612

556

493

Maximum

33

33

49

662

_

79

764

938

660

257

73

938

June

460

433

416

408

391

374

354

366

466

574

574

508

430

382

385

445

550

673

734

810

938

886

722

576

471

441

483

544

526

471

-

Minimum

17

23

24

.

39

84

354

208

67

26

17

July

399

348

351

429

534

586

607

628

660

656

618

586

544

492

441

411

390

387

375

354

354

351

340

323

311

287

268

246

230

216

208

Aug.

206

206

204

204

200

196

190

188

190

204

226

248

257

243

222

196

174

152

135

122

113

110

102

94

90

86

84

79

76

72

67

Mean

21 9

27!5

34.3

82.1

40

37

35

55.6 4<34

5?6

417

159

43.7

156

Sept.

63

63

57

50

48

46

44

39

41

39

36

35

33

29

28

26

26

34

35

36

38

38

38

39

44

49

54

61

66

73

-

Runoff in 

acre-feet

1 340

l!640

2,110

59,480

2,460

2,050

2,150

3,310

28 1 560

31,320

25,650

9,790

2,600

113,000

Note.- No gage-height record Dec. 30 to Apr. 27 (stage-discharge relation probably affected by 

lee during part of period); discharge computed on basis of weather records.
166 GREEN RIVER BASIN

Fall Creek near Plnedale, 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.- 3V.2 square miles.

Records available.- October 1938 to September I94V (no winter records 1913, 1944). May 

lyiw to October 1905 at site 1-J miles downstream, published as Fall C-eek at Fayette.

Extremes.- Maximum discharge during year, 480 second-feet June 21 (gage height, 7.70 

reet); minimum daily, 2.5 second-feet Oct. 17, 19, 20.

1904-5. 1938-47: Maximum discharge, 546 second-feet June 22, 1943 (gage height, 

7.83 feet); minimum daily, 0.1 second-foot Sept. 21, 1942.

Remarks.- Records excellent above 20 second-feet and fair below. Practically no diversion 

above station.

Rating table, water year 1946-47, except periods of Ice effect 

[gage height, in feet, and discharge, In aecond-feet) 

(Shifting-control method used Oct. 9-21, Sept. 6-3O)

4.7 1.8 5.2 13 6.5 142

4.8 3.0 5.3 18 6.7 174

4.9 4.5 5.4 24 7.O 236

5.0 6.5 5.7 50 7.3 326

5.1 9.0 6.1 91 7.5 400

Discharge, in second-feet, water year October 1946 to September 1947

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

Tk

28

29

30

31

Oct.

4.0

3.9

3.8

4.0

4.0

3.8

3.9

3.8

3.8

3.8

3.4

3.4

3.4

3.3

3.3

3.0

2.5

2.6

2.5

2.5

2.6

2.7

2.8

2.7

2.7

2,7

2.7

2.7

2.8

2.8

2.9

Nov.

2.9

2.8

2.8

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.8

2.8

2.8

2.8

2.9

2.9

2.9

*2.9

2.9

3.0

3.0

3.2

3.2

3.0

3.2

3.3

3.3

3.3

3.3

-

Dec.

3.2

3.2

3.2

3.2

3.3

3.4

3.4

3.6

3.6

3.6

3.8

4.2

4.9

5.7

6.1

b6.3

b6.3

b6.3

b6.5

b6.8

b7.2

b7.6

7.8

7.5

7.5

7.5

b7.5

b7.5

b7.5

b7.5

b7.5

Jan.

b7.4

b7.4

7.5

7.5

7.5

7. "5

7.2

7.0

6.8

6.8

6.8

7.0

7.0

7.0

6.8

6.8

6.8

6.5

6.5

6.5

6.5

6.5

6.3

6.3

6.3

6.3

6.3

6.5

6.5

6.3

6.5

Feb.

6.5

6.5

6.5

6.5

6.5

6.5

6.3

6.3

6.3

6.3

6.3

6.1

6.1

6.1

6.1

6.1

5.9

5.9

5.9

5.9

5.9

5.7

5.7

5.5

5.5

5.5

5.5

5.5

_

_

-

Month

October ....................................

November . ..................................

December ...................................

Calendar year 1946 ....... . ............

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August ......................... ...........

September. .................................

Water year 1946-47 .......................

Mar.

5.5

5.5

b5.5

b5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.7

5.7

5.5

5.5

5.5

5.5

5.3

5.5

5.3

5.5

5.7

5.3

5.3

5.3

Apr.

5.5

5.7

5.7

5.9

7.8

6.3

7.8

7.2

6.1

6.5

6.3

6.5

6.8

7.0

6.8

6.8

7.0

7.2

7.5

7.8

8.3

10

13

13

14

14

14

16

18

19

-

May

22

29

50

73

109

158

229

289

351

366

344

295

236

212

204

192

194

200

206

206

210

227

229

202

178

190

227

271

236

198

178

Second- Maximum foot-days "aximum

98* 8 4,0

173i2 I'.B

10,617.8 336

210.6 7.5

169.4 6.5

170.1 5.7

273 5 19

6,311 366

6,134 408

3,960 221

1,111 62

234.8 13

18,935.6 408

June

174

170

176

180

163

152

146

176

295

290

241

174

138

128

142

186

251

295

316

408

396

246

190

152

138

148

182

182

158

141

-

Minimum

2 2*85

s'.z

_

6.3

5.5

5.3

5.5

22

141

52

14

4.9

2.5

July

12.1

123

149

20'

221

216

210

218

210 IS"*

167

155

143

123

122

115

111

109

105

10.3

102

93

93

8D

8.1

74

69

65f'\

56

52

Aug.

48

46

45

45

45

43

41

41

43

48

58

62

61

56

48

43

38

34

30

27

26

23

22

21

19

19

18

17

16

14

14

Sept.

13

12

11

11

10

9.8

9.0

8.5

8.5

7.8

6.8

6.5

6.3

5.7

5.1

4.9

5.1

5.5

5.7

5.3

5.3

5.5

5.7

6.5

7.8

8.5

9.0

9.8

9.8

9.4

-

u==r, Runoff in Mean acre-feet

3.19 196

2.97 177

5.59 ' 344

29.1 21,070

6.79 416

6.05 336

5.49 337

9.12 542

204 12 520

204 12^170

128 7,850

35.8 2,200

7.83 466

51.9 37,560

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ioe.

Note.- No gage-height record Oct. 22 to Nov. 18; discharge computed on basis of weather records.
GREEN RIVER BASIN 167

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 Boulder Lake and 5 miles north of Boulder.

Drainage area.- 130 square miles.

Records available.- October 1938 to September 1947 (no winter records 1943, 1945). 

April iyu4 to uctober 1906, May 1915 to October 1924, May 1931 to November 1932 at 

site 4 miles downstream; records not equivalent.

Extremes.- Maximum discharge during year, 2,240 second-feet June 21 (gage height, 5.74 

feet); minimum daily, 0.2 second-foot Apr. 20-22 (temporary regulation by cofferdam) .

1938-47: Maximum discharge, 2,440 second-feet June 22, 1943 (gage height, 5.°6 

feet); no flow Nov. 28, 1939, to Apr. 15, 1940, Nov. 18, 1944.

Remarks.- Records excellent above 50 second-feet and fair below. Flow slightly regulatea by Boulder Lake (capacity, 11,000 acre-feet). No diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

43 

45 

41 

21

2b

38 

41 

41 

41 

40

39 

38 

39 

38 

38

37 

36 

3& 

36 

30

37 

37 

36 

35 

34

33 

34 

36 

36 

36 

36

Nov.

36 

36 

37 

36 

37

36 

36 

37 

36 

36

35 

34 

34 

33 

33

32 

32 

32

*31 

31

32 

32 

32 

32 

32

32 

33 

33 

33 

33

Dec.

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

34 

35 

35

34 

34 

35 

37 

38

41 

40 

39 

38 

37

37 

37 

36 

35 

35 

36

Jan.

' 39

Feb.

41

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May

June 

July 

Augu 

Sept

Wa

ber... .................................

mber. .................... .............

lendar year 1946 

ary

^

ember. ................... .........

ter year 1946-47 .... . .......... ....

* Winter d 

Note.- Sta

record Jan. 

charge compu

Mar.

 43

Apr.

44 

44 

45 

46 

46

45 

46 

46 

46 

45

44 

44 

44 

44 

44

45 

45 

 19 

.4 

.2

.2 

.2 

.3 

1.0 

6.8

6.8

7.2 

7.2 

7.2 

7.6

May

8.6 

8.6 

9.2 

13

66

59 

24 

24 

216 

583

962 

1,120 

1,040 

908 

816

761 

778 

810 

852 

832

866 

962 

974 

872 

794

827 

950 

1,070 

992 

872 

822

June

794 

783 

794 

778 

740

725 

778 

1,200 

1,720 

1,530

1,100 

878 

788 

772 

822

980 

1,200 

1,320 

1,560 

2,030

1,980 

1,480 

1,110 

914 

800

827 

956 

938 

878 

778

forays Maximum Minimum

1,134 45 21 

1,014 37 31 

1,077 41 32

64,441 1,620

1,209 

1,148 

1,333 

827.1 46 .2 

19,871.4 1,120 8.5 

31,953 2,030 725 

22,971 1,120 372 

7,582 ' 376 136 

4,621 197 117

94,740.5 2,030 .2

JulJ705 

705 

8?7 

1,050 

1,120

1,120 

1,070 

1,120 

1,100 

1,030

956 

908 

849 

788 

730

696 

673 

660 

619 

614

606 

596

6C7 

596 

5T4

534 

492 

4f6 

4?8 

3F6 

372

Aug.

349 

335 

328 

317 

310

295 

281 

277 

284 

313

353 

376 

364 

342 

310

281 

252 

220 

197 

181

166 

160 

154 

149 

144

141 

144 

144 

141 

138 

136

lf«an

36.6 

33.8 

34.7

177

39 

41 

43 

27.6 

641 

1,065 

741 

245 

154

260

ischarge measurement made on this day. 

ge-dlscharge relation affected by ice Dec. 16-20, Dec. 28 to Jan. 13. No gag 

14 to Apr. 17 (stage -discharge relation affected by ice during part of period 

ted on basis of weather records.

Sept.

136 

136 

133 

133 

131

128 

128

128 

128 

126

124 

124 

121 

121 

119

117 

149 

197 

194 

190

187 

187 

184 

187 

187

187 

187 

184 

184 

184

Runoff in 

acre-feet

2,250 

2,010 

2,140

127,800

2,400 

2,280 

2,640 

1,640 

39,410 

63,380 

45,560 

15,040 

9,170

187,900

e-hel-ht 

); dls852060 O - 49 - 12
168 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 1947. May 1916 to September 1917, May 1921 

to November 1923 at site 2 miles downstream, published as East Fork at East Pork 

Canal. No winter records 1916-17, 1921-23, 1941-45.

Extremes.- Maximum discharge during year, 1,260 second-feet June 9 (gage height, 6.44 feet 

reetJ, from rating curve extended above 820 second-feet; minimum not determined, 

occurred during period of no gage-height record.

1916-17, 1921-23, 1938-47: 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 excellent except those for Septanber, which are good, ancf 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 1946 to September 1947

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

Got.

13

14

19

18

22

23

19

21

20

19

14

16

16

15

14

14

14

13

12

 12

13

12

12

11

13

13

13

16

18

30

33

Nov.

34

20

25

25

19

19

17

16

16

14

b!4

b!3

b!3

b!2

b!2

b!2

fell

bll

bll

bll

*bll

12

12

12

11

12

12

12

12

12

Dec.

11

Jan.

10

Feb.

. 10

_

.

-

Month

October ....................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March. ......................................

April ......................................

May........................................

June .......................................

July.. .....................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

12

Apr.

13

13

13

13

13

13

13

13

13

12

12

15

16

18

20

22

24

24

 25

27

25

25

26

28

31

35

40

42

48

56

Secondfoot-days

512

443

341

34,334.0

510

280

372

688

17 ,028

14,911

9,945

2,464

1,504

48,798

May

66

120

210

360

511

668

845

970

1,080

946

860

632

502

436

432

484

588

578

570

516

606

610

475

412

458

619

624

619

445

354

432

Maximum

33

34

95Z

56

1,080

1,090

592

171

138

1,090

June

441

416

462

412

369

404

475

815

1,090

686

466

347

383

392

412

480

628

646

682

890

700

4Z4

351

288

291

412

516

400

351

282

-

Minimum

11

11

8.1

 _

12

66

282

134

22

13

-

July

301

441

592

578

520

498

574

493

432

416

392

340

301

279

285

298

320

zaa

267

261

241

Z50

247

'199 217

176

162

151

149

143

134

Aug.

138

126

120

114

112

100

91

132

149

151

171

134

105

87

77

69

62

54

50

45

41

48

48

41

37

32

30

28

26

24

22

Mean

16.5

14.8

11

94.1

10

10

12

22.9

549

497

321

79.5

50.1

134

Sept.

22

19

18

15

15

15

14

13

14

24

25

22

20

17

15

14

18

62

82

77

80

118

138

126

120

100

85

77

70

69

-

Runoff in 

acre-feet

1,020

879

676

68,110

615

555

738

1,360

33,770

29,580

19,730

4,890

2,980

96,790

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Mote.- No gage-height record Oc't. 16-19, Nov. 22 to May 4 (stage-discharge relatior affected by 

Ice during most of period); discharge computed on basis of 1 discharge measurement, veather records, 

and records for stations on nearby streams.
GREEN RIVER BASIN 

Silver Creek near Big Sandy, Wyo.

169

Location.- Water-stage recorder, lat. 42°45', long. 109°31', in sec. 17, T. 32 N., R. 

J.Ufa' W., at Miller Ranch, 1 mile downstream from South Pork, 8 miles northwest of Big 

Sandy, and 11 miles east of Boulder.

Drainage area.- 45.4 square miles.

Records available.- October .1938 to September 1947 (no winter records 1942-45).

Extremes.- Maximum discharge during year, 720 second-feet June 9 (gage height, 6.92 feet), 

rrom rating curve extended above 450 second-feet; minimum daily, 0.7 second-foot 

Oct.. 1, Sept. 7, 8.

1938-47: Maximum discharge, that of June 9, 1947; maximum gage height, 7.04 feet 

May 26, 1942; no flow at times in most years.

Remarks.- Records excellent above 25 second-feet and good below, except those for periods 

or ice effect or no gage-height record, which are poor. One small diversion above 

station.

Discharge, in second- feet, water year October 1946 to September 1947

Day

1

2

3

4

5

e

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.

0.7

1.2

1.8

2.8

3.2

3.2

2.8

2.8

2.5

2.0

1.4

2.2

1.8

1.8

al.8

al.9

a2.0

a2.0

a2.4

a2.8

*2.5

2.8

2.8

2.5

3.9

3.9

4.7

7.2

8.5

11

15

Nov.

b!6

b7.0

9.0

9.0

6.4

6.2

6.2

5.8

5.2

4.8

5.2

5.0

5.0

4.2

4.0

4.0

3.9

3.9

3.7

*3.8

3.8

4.0

4.0

3.9

3.9

3.9

4.0

3.9

3.8

3.7

-

Dec.

 3.5

Jan.

 3.0

Feb.

3.0

"

-

-

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March.. ....................................

April.. ....................................

May. .......................................

June ........................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

 4.0

Apr.

5.0

5.2

5.3

5.4

5.6

5.8

5.6

5.6

5.6

6.2

7.0

7.8

8.8

10

12

13

14

*14

16

17

16

15

16

15

19

26

28

31

34

a37

-

Secondfoe t-day a

107.9

157 »2

108 '.5

9,990.7

93.0

84 0

124 !o

411.9

10,674

1J702.5

312.3 

273.6

22,850.9

May

a42

a58

a85

158

232

294

400

525

578

547

503

396

332

298

292

318

364

378

372

380

435

435

352

306

348

418

452

430

318

276

352

Maximum

15

16

300

37 

578

617

116

29 

27

617

June

346

348

356

316

280

312

366

494

617

406

320

260

232

270

292

330

352

328

316

414

376

248

167

137

133

138

190

170

153

135

Minimum

0.7

3.7

0

5.0 

42

133

8.5

1.7 

.7

.7

Julj112

104

110

116

104

90

82

82

74

59

51

45

43

41

38

38

66

63

55

45

41

42

47

35

30

24

19

16

12

10

8.5

Aug.

8.5

7.2

5.5

9.5

14

18

10

14

24

24

29

20

17

14

12

11

9.5

8.5

7.6

6.8

6.4

6.8

6.8

5.5

4.7

4.3

3.9

3.5

2.8

1.8

1.7

Mean

3 .48

s'.5 5.24

27.4

3.0

3.0

4.0

13.7 

344

29354 9

loil

9.12

62.6

Sept.

1.5

1.4

1.1

1.0

.8

.8

.7

.7

1.0

2.2

2.2

1.8

1.4

1.1

1.1

1.0

1.8

12

16

15

19

25

27

24

22

21

19

18

16

18

Runoff in 

acre-feet

214

312

215

19,820

1 PA J.O*

167

246

817

21,170 

17,460

3,380 

619

543

45,330

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for stations on nearby streams, 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 3 to Apr. 17 (stage-discharge relation affected by ice during 

ost of period); discharge computed on basis of 1 discharge measurement and weather records.
170 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 1947 (no winter 

records most years).

Extremes.- Maximum discharge during year, 395 second-feet June 21 (gage height, 3.62 feet); 

'minimum not determined, occurred daring period of no record.

1915-16, 1931-47: Maximum discharge, 613 second-feet June 19, 1316 (gage height, 

3.93 feet), from rating curve extended above 450 second-feet; minimum not determined,

probably occurred during winter.

Remarks.- Records good except for September and those for periods of ice effect, which are 

fair, and those for period of no gage-height record, which are poor. Several small diversions above station.

Discharge, in second-feet, water year October 1946 to September 1917

Day

1

2

3

4

5

6

7

8

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

31

28

28

31

32

31

29

29

27

26

27

27

27

28

28

28

28

26

24

25

25

26

26

26

26

28

28

26

26

26

Nov.

b25

25

27

b26

b26

b27

b27

b26

b24

b22 '

b20

b!9

b!9

b20

b20

*b20

20

20

19

18

17

16

16

15

15

14

14

14

14

14

Dec.

13

Jan.

 9.0

Feb.

. 8.5

_

_

-

Month

October. ...................................

November . ........................ ........

December. ..................................

Calendar year 1946 ......................

January. ........................... ...

February. ..................................

March ......................... ....... ....

April ........-.........!........... ........

May. .......................................

June .......................................

July. ...................... .......... ....

August .................... ................

September. ...................... . ........

Water year 1946-47 ............ .........

Mar.

10

Apr.

26

-

Secondfoot-days

851

599

403

_

279.0

238.0

310

780

6 , 868

8,424

5,799

2 151

1*059

27,761.0

May

72

90

125

170

205

215

215

220

220

230

240

245

240

240

240

235

234

238

236

230

234

242

238

238

242

270

282

286

252

226

218

Maximum

32

27

_

_

286

383

268

96

43

383

June

226

232

256

246

234

238

234

286

338

316

302

276

246

232

240

270

316

332

350

383

379

338

284

260

256

290

300

274

256

234

Minimum

 24

14

_

_

72

226

100

45

29

-

July

228

236

258

264

262

260

262

268

258

250

234

220

202

192

192

202

186

173

163

157

148

146

142

134

124

117

110

108

102

101

100

Aug.

95

95

96

92

90

84

81

86

86

90

84

75

70

66

64

63

61

60

57

56

62

70

61

57

55

52

51

51

49

47

45

Me=n

27.5

20.0

13

-

9.0

8.5

10

26

222

281

187

69.4

35.3

76.1

Sept.

43

42

41

41

39

39

38

38

39

39

36

36

34

34

34

34

37

43

37

34

32

31

31

31

31

29

29

29

- 29

29

-

Runoff in 

acre feet

1,690

1,190

799

-

553

472

615

1,550

13,620

16,710

11,500

4,270

2,100

55,070

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 17 to May 16 (stage-discharge relation affected by ice during 

part of period); discharge computed on basis of weather records and records for stations on nearby 

s t re ams .
GREEN RIVER BASIN 171 

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

Location.- Water-stage recorder, lat. 42 C 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 19.39 to September 1947 (no winter records 1943, 1946).

Extremes.- Maximum discharge during year, 184 second-feet June 20 (gage height, 6.24 

reet); minimum not determined, occurred during period of no record.

1939-47: 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 periods of ice effect or no gage-height record, 

which are fair. Flow regulated by Middle Piney Lake (usable capacity, 4,200 acrefeet)..

Discharge, in second-feet, water year October 1946 to September 1S47

Day

1

2

3

4

5

6

7

8

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

10

10

10

9.7

9.7

10

10

9.7

9.4

9.1

9.1

9.1

9.1

8.8

8.5

*8.8

8.5

8.5

8.2

8.2

8.2

7.9

7.9

8.2

7.9

7.6

7.6

7.6

Nov.

7.4

7.4

7.6

7.8

7.8

7.8

7.6

7.2

7.0

6.8

6.4

6.2

6.2

6.4

6-. 5

*6.5

6.4

6.4

6.2

6.2

6.2

6.2

6.0

6.0

6.0

6.0

6.0

6.2

6.2

6.0

-

Dec.

. 5.0

Jan.

' 4.5

Feb.

' 4.2

-

-

~

Month

October. ...................................

November . ........................ .... ....

December ...................................

Calendar year .................... .

January .................................. .

February. ..................................

March. .............................. ......

April ...................................

May. ................................ ...

June ............. .........................

July. ............ .........................

August ........... .........................

September. ....... .........................

Water year 1946-47 ........ .............

Mar.

 5.5

Apr.

 14

~

Secondfoot-days

277.3

198.6

155.0

_

139.5

117.6

170.5

420

3)88!

3,694

1,551

572

14,068.5

May

33

38

50

75

92

100

98

100

105

110

110

105

100

95

90

90

90

93

93

93

96

100

100

100

103

109

110

110

104

100

100

Maximum

10

7.8

.

110

174

146

80

28

174

June

100

100

104

103

102

103

102

110

120

112

112

116

121

135

135

141

150

155

160

174

174

162

145

137

133

138

143

137

130

127

-

Minimum

7.6

6.0

_

33

100

82

28

16

-

July

124:

129

137

141

143

145

145

146

145

146

141

1315

130

127

127

127

121

118

114

112

108

106

104

100

97

94

91

89

86

84

82

Aug.

80

80

79

76

73

70

66

61

61

61

56

52

50

50

47

46

43

41

40

40

42

42

38

36

35

34

32

31

32

29

28

M?an

8.95

6.62

5.0

_

4.5

4.2

5.5

14

129° 93 3

119

50.0

19.1

38.5

Sept.

28

25

24

24

22

22

19

18

19

19

18

18

17

17

18

16

19

21

20

19

18

18

18

17

17

17

16

16

16

16

-

Runoff in 

acre-feet

550

394

307

_

277

233

338

833

5,740

7,700

7,330

3,080

1,130

27,910

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 1-16. No gage-height record Nov. 17 to May lc 

(stage-discharge relation affected by ice during most of period); discharge computed on basis of 

weather records and records for stations on nearby streams.
172 GREEN RIVER BASIN

Labarge Creek near Viola, Wyo.

Location.- Water-stage recorder, lat. 42 0 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 1947. April to September 1913, 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, 585 second-feet May 11 (gage height, 6.00 feet); 

minimum daily, 43 second-feet Dec. 31 to Jan. 3. .

1913, 1915-16, 1940-47: Maximum discharge, that of May 11, 1947; maximum gage 

height, 6.01 feet May 5, 1943; minimum daily discharge, 4 second-feet Jily 5-14, 1915.

Remarks.- Records fair. Several small diversions above "station for irrigation.

Discharge, in second-feet, water year October 1946 to September 194 7

Day

1

Z

3

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

28

26

27

28

29

30

31

Oct.

63

70

70

70

73

75

77

77

77

75

74

77

75

78

78

77

77

77

74

73

74

74

74

73

74

74

78

88

84

75

72

Nov.

64

62

68

69

69

68

68

68

65

57

57

55

54

62

*64

63

60

58

58

60

56

54

56

54

52

54

54

56

56

58

-

Dec.

56

52

52

54

56

56

54

50

48

47

47

47

48

49

*50

49

47

46

47

47

46

47

49

50

50

48

46

44

44

44

43

Jan.

43

43

43

45

46

47

48

48

49

52

52

52

50

*49

48

47

48

49

49

50

50

52

54

54

52

52

52

50

49

49

49

Feb.

50

52

54

52

52

50

48

47

47

47

47

48

49

49

50

50

*50

50

49

48

48

49

50

50

49

48

46

46

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May

July. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

47

46

50

52

52

52

52

52

54

56

56

54

53

52

*52

55

66

70

74

66

63

63

64

58

56

55

54

53

56

62

62

Apr.

60

60

58

57

54

54

52

52

55

52

54

50

54

65

78

80

78

84

93

114

131

117

99

87

88

90

114

141

198

212

-

Secondfoot-days

1,513

34,526

3 512

3 409

2,448

46,297

May

230

344

442

480

498

526

536

536

550

546

564

546

484

448

438

448

476

473

470

459

466

456

420

401

398

414

428

459

404

362

362

Maximum

69

56

363

212

98

564

June

353

350

350

344

326

347

344

353

431

417

490

459

424

362

332

320

320

326

317

323

350

350

299

262

258

250

242

242

230

218

Minimum

62

52

42

^

4**

23C

77

42

July

21f

20C

18£

143

13S

137

131

131

12E

125

115

105

96

98

108

114

114

111

103

95

93

95

92

87

81

77

74

75

75

80

93

Aug.

115

117

117

117

112

109

111

135

131

155

157

123

115

111

109

106

103

93

86

95

104

120

106

98

96

95

98

99

95

93

88

He^o

75.1

60.0

48.8

94.6

56 7

81.6

127

Sept.

87

86

84

82

82

81

80

80

84

86

84

81

80

78

80

78

86

98

90

82

81

80

78

78

77

77

77

77

77

77

Runoff in 

acre-feet

4,620

3,570

3,000

68,500

4,860

91,850

* Winter discharge measurement made on this day.

Mote.- No gage-height record Nov. 16 to Mar. 14 (stage-discharge relation affected by ice- .luring 

most of period); discharge computed on basis of 3 discharge measurements and weather records. No 

gage-height record July 10-15; discharge computed on basis of weather reoopls and records for stations on neirby streams.
GREEN RIVER BASIN 173

Fontenelle Creek near Fontenelle, Wyo.

Location.- Water-stage recorder, lat. 42°06', long. 110 0 13', in sec. 3, T. 24 N., R. 113 

W., 6 miles west of Fontenelle.

Drainage area.- 224 square miles.

Records available.- May 1915 to September 1919, October 1931 to September 1947.

Average discharge.- 19 years (1916-19, 1931-47), 58.5 second-feet.

Extremes.- Maximum discharge during year, 590 second-feet June 12 (gage height, 3.19

t'eet}, from rating curve extended above 360 second-feet; minimum daily, 21 second-feet 

Jan. 15.

1915-19, 1931-47: 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,

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 1946 to September 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.

30

37

37

34

35

37

37

37.

38

37

32

31

31

36

32

32

34

32

31

30

29

30 *30

30

31

31

34

46

51

40

34

Nov.

30

32

44

40

51

40

39

36

33

32

34

35

38

44 *47

48

47

47

49

52

48

45

48

47

45

48

54

55

55

56

-

Dec.

44

50

48

52

54

54

50

44

42

42

43

45

46

47

*47

45

32

34

34

37

34

36

37

39

34

30

27

25

25

25

25

Jan.

24

23

22

23

25

25

25

26

26

28

27

25

23

*22

21

22

23

23

23

24

25

25

25

25

26

26

26

25

24

23

23

Feb.

24

24

25

25

25

25

25

24

23

23

23

23

24

24

25

*25

25

25

24

24

25

25

26

26

25

24

23

23

_

_

-

Month

October. ................................. .

November. ........................ .........

December ...................................

Calendar year 1946 ......................

January. .......... ...................... .

February ...................................

March.. ....................................

April ......................................

May. .......................................

June .......................................

July..... ..................................

August .....................................

September. ..... ...........................

Hater year 1946-47 ..... ... ............

Mar.

23

23

25

26

26

26

26

26

28

30

29

28

28

30 *b31

b33

b36

b40

42

40

39

40

43

42

42

42

b44

b47

b52

b56

b54

Apr..

b58

b60

b64

b60

58

58

60

62

64

60

64

60

*60

107

154

130

116

120

118

138

150

156

130

109

103

102

114

136

154

176

-

Secondfoe t-days

1,066

1,319

1,227

23,926.5

753

682

1,097

3,001

8,479 .

8,364

2,032

1,988

1,219

31,227

May

176

208

249

285

310

316

320

316

310

324

386

464

372

306

246

222

215

215

220

215

210

222

249

249

243

222

240

327

320

252

270

Maximum

51

56

54

348

28

26

56

176

464

558

148

144

68

558

June

270

252

234

228

222

231

234

231

320

334

428

558

523

400

324

296

285

276

270

264

313

327

273

220

200

183

178

168

162

160

-

Minimum

29

30

25

21

23

23

58

176

160

34

36

32

21

July

14-3

13?

Ill

lO^

107

ID'5

919"

9~

81

6")

58

56

55

51

474<J

514^5

3^

37

44

51

44

V>

37

3S

3S

31

3<3-;

Aue .

36

42

49

46

54

54

46

78

144

118

138

96

79

70

62

61

58

55

54

52

55

70

68

58

54

52

51

49

48

47

44

I'ean

34*4

44!o

39 *6

65.6

24.3

24.4

35.4

100

274

279

65.5

64.1

40.6

85.6

Sept.

40

39

38

36

35

35

32

32

35

38

37

36

37

37

37

38

46

66

68

51

46

44

43

42

40

39

38

38

38

38

-

Runoff in 

acre-feet

2,110

2,620

2 430

47,460

1,490

1,350

2,180

5,950

16,820

16,590

4,030

3 940 2)420

61,930

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 7 to Mar. 14, Mar. 19-26, Apr. 5-12 (stage-discharge relation 

affected by ice during most of periods); discharge computed on basis of 4 discharge measurements and 

weather records.
174 GREEN RIVER BASIN

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

Location.- Water-stage recorder, lat. 42°35', 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 1947 (no winter records J.yiU-11, 1942-45).

Extremes.- Maximum discharge during year, 875 second-feet June 9 (gage height, 6.16 feet), 

from rating curve extended above 700 second-feet; minimum not determined, occurred 

during period of no gage-height record.

1910-11, 1939-47: Maximum discharge, 890 second-feet May 27, 1942 (gage height, 

6.18 feet), from rating curve extended above 700 second-feet; minimum observed, 4.8 

second-feet Jan. 4, 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. Few diversions above stations.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

fi

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

23

29

29

50

32

51

50

50

29

29

29

50

29

27

26

26

25

24

*23

24

24

24

24

25

26

25

30

30

33

37

Nov.

b38

b26

b30

b30

b27

b26

26

25

24

23

25

24

22

22

22

22

21

21

20

20

*21

22

23

21

21

22

25

22

21

20

-

Dec.

1 1V

Jan.

> 12

Feb.

1 10

-

-

-

Month

October. .............................

December. ..................................

Calendar year 1946 ......................

March. ..................... ...............

April. ..................... ...............

May........................................

September. . . ............... . . ...........

Water year 1946-47 ...... ..............

Mar.

I 15

Apr.

22

22

21

21

21

20

20

20

20

20

19

19

22

26

30

38

44

40

44

48

50

57

29

50

29

32

45

60

59

77

Secondioot-days

852

527

30,316

1,637

40,098

May

73

140

180

276

498

638

633

646

682

552

584

459

.405

526

297

505

540

337

337

300

333

358

323

294

279

340

376

459

383

353

333

Maximum

584

732

104

732

June

347

309

306

, 306

288

344

340

437

732

535

434

394

390

372

365

376

456

478

486

682

570

423

387

320

288

300

351

326

297

265

-

Minimum

.

28

-

July

231

270

376

434

408

405

434

459

398

358

340

297

268

245

237

240

251

268

226

213

196

194

190

174

156

149

140

134

127

125

120

Aug.

120

120

114

110

112

102

94

104

104

117

151

117

101

91

80

75

71

66

59

56

57

64

58

51

48

46

44

43

39

37

35

Moan

27 5

17

83.1

54.6

110

Sept.

33

32

31

30

30

30

29

28

30

43

43

39

36

33

31

30

48

102

104

96

90

91

91

85

78

73

67

64

61

59

Runoff in 

acre feet

1,050

60,140

3,250

79,540

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 7 to Apr. 20 (stage-discharge relation affected by ice during 

ost of period); discharge computed on basis of Z discharge measurements and weather records.
GREEN RIVER BASIN 176

Little Sandy Creek near Elkhorn, Wyo.

i

Location.- Water-stage recorder, lat. 42°32', long. 109°13', In sec. 35, T. 30 N., R. 

1U4 w., 7 miles northeast of Elkhorn.

Drainage area.- 20.9 square miles.

Records available.- July 19.39 to September 1947 (no winter records 1942-45).

Extremes.- Maximom discharge during year, 234 second-feet June 9 (gage height, 4.15 feet); 

minimum not determined, occurred during period of no gage-height record.

1939-47: Maximum discharge, that of June 9, 1947; maximum gage height, 4.25 feet 

June 26, 1944, minimum observed, 0.9 second-foot Jan. 4, 1940 (discharge measurement), 

but may have been less during period of ice effect.

Remarks.- Records good except those for periods of 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 1946 to September 1S47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.9

6.3

6.0

6.0

6.5

6.0

5.8

5.8

5.8

5.8

6.7

5.2

6.6

6.6

6.4

6.2

6.0

6.0

6.6

7.4

6.3

6.0

6.3

7.2

6.3

6.0

6.3

7.7

8.4

28

20

Nov.

19

14

9.0

10

10

7.0

6.8

6.6

6.4

6.2

6.8

6.6

6.2

5.8

5.8

5.8

5.8

5.8

5.7

5.7

5.8

6.0

6.0

5.6

5.6

5.8

6.0

6.0

5.8

5.6

-

Dec.

> " 5.0

Jan.

4.5

Feb.

 4.0

_

_

-

Month

October. ............................... ...

November ......................... .........

December ................................

Calendar year 1946 ............... ......

January .................................. .

February. ....................... .... .....

March. .............................. ......

April ........ .................. ..........

Mnw Bay. .....................................

June . .....................................

July .............. ........................

August ................... ..... ...... .

September .... ... ....... .............

Water year 1946-47 .... ................

Mar.

> 4.3

Apr.

> 7.5

-

Secondfoot-days

231 . 1

213 . 2

15s!o

8,007.1

139 . 5

112. 'o

133.3

225 0

1* 896

2,697

3,014

803

396

10,015.1

May

22

24

27

32

40

56

80

100

108

104

92

80

60

52

50

52

54

56

56

56

57

62

63

56

52

54

66

81

73

66

65

Maximum

28

19

138

1 Ofl

183

175

44

16

188

June

51

56

56

56

53

64

55

71

188

162

111

88

77

77

70

70

92

116

126

181

172

115

86

68

56

59

77

84

81

69

Minimum

4.9

5.6

_

£2

53

46

13

11

-

July

55

60

107

162

153

144

153

175

151

148

141

127

112

101

99

IDS

105

90

80

83

81

80

73

66

61

56

53

49

49

47

46

Aug.

44

42

42

41

38

35

32

31

32

38

38

33

30

26

24

22

21

19

18

17

17

18

18

18

17

16

16

16

16

15

13

M-in

7.45

7.11

5.0

21.9

4.5

4.0

4.3

7.5

61.2

39 .9

97.2

25.9

13.2

27.4

Sept.

14

14

13

13

14

14

13

13

15

15

14

13

12

11

11

11

16

16

16

13

13

12

12

12

12

12

12

13

13

14

Runoff in 

acre feet

458

423

307

15,880

277

232

264

446

3, 760 

5 350

s!980

1,590

785

19,860

Note.- No gage-height record Oct. 13-19, Nov. 2 to May 20 (stage-discharge relation affected by 

ice during most of period); discharge computed on basis of weather records and records for etatlons 

on nearby streams.
176 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, 4| miles north of Utah-Wyoming State 

line, and 15 miles southwest of Millburne.

Drainage area.- 156 square miles.

Records available^- July 1939 to September 1947 (no winter records 1942-45).

Extremes.- Maximum discharge during year, 1,420 second-feet May 8 (gage height, 2.84 

feet j, from rating curve extended above 550 second-feet; minimum not determined, 

occurred during period of no gage-height record.

1939-47: Maximum discharge, 1,960 second-feet June 26, 1944 (gage height, 3.46 

feet), from rating curve extended above 1,000 second-feet; minimum not determined, 

occurred during period of no gage-height record.

Remarks.- Records good except those for periods of ice effect, which are fair, those for 

period of no gage-height record, which are poor. No diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

25

55

37

39

44

39

37

42

35

39

33

33

35

31

35

35

37

35

28

31

31

35

35

22

37

31

33

35

35

30

29

Nov.

30

31

30

32

47

57

57

52

48

43

27

24

23

24

25

22

23

26

28

28

27

26

28

29

29

29

26

22

20

21

-

Dec.

21

25

31

37

33

31

30

31

31

39

39

39

33

28

30

30

24

23

25

27

26

28

30

27

31

32

34

31

27

20

16

Jan.

14

Feb.

19

.

-

-

Month

October. ...................................

November ...................................

December ............................. ... .

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March. ........................ .......... .

April ......................................

May................... ....................

June .......................................

July. ......................................

August ................ ....................

September. .................................

Water year 1946-47 ......................

Mar.

30

Apr.

 49

95

-

Secondfoot days

1,078

934

909

50,749

434

532

930

1,516

21,438

20,077

11,720

4,119

2,329

66,016

May

142

259

418

704

850

902

1,000

1,100

1,160

902

738

586

508

466

460

562

612

645

652

690

722

843

801

704

794

815

872

843

606

538

544

Maximum

55

57

39

948

1,160

1,170

638

187

103

1,170

June

562

593

600

526

544

520

710

1,040

1,030

710

664

574

593

550

556

690

836

738

865

1,170

888

652

550

478

460

538

612

632

652

544

-

Minimum

22

20

16

142

460

183

95

60

-

July

526

562

638

638

568

520

532

556

520

520

466

406

378

356

378

389

345

320

310

305

295

286

286

241

219

202

198

195

191

191

183

Aug.

187

187

176

176

165

149

146

149

155

168

158

133

127

124

127

118

112

106

106

109

121

155

121

112

115

109

106

103

98

106

95

Mean

34.8

31.1

29.3

139

14

19

30

50. 5

692

669

378

133

77.6

181

Sept.

92

89

86

84

84

84

78

75

89

95

81

75

75

70

70

70

92

89

103

84

75

70

68

70

68

65

60

60

60

68

Runoff in 

acre feet

2,140

1,850

1,800

100,700

861

1,060

1,840

3,010

42 520

39 f 82O

23 250

8^170

4,620

130,900

Mote.- Stage-discharge relation affected by ice Oct. 31, Hov. 1-5, 10-23, Dec. 19-23. No gagehelght record Dec. 24 to Apr. 29 (stage-discharge relation affected by Ice during moat of period); 

discharge computed on basis of weather records.
OREEN RIVER BASIN 177

Blacks Pork 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 2f miles north of Urie.

Drainage area.- 261 square miles.

Records available.- August 1913 to September 1924 (no winter records), October 1937 to 

September 1947.

Average discharge.- 10 years (1S37-47), 54.6 second-feet.

Extremes.- Maximum discharge during year, 998 second-feet May 9 (gage height, 5.97 feet); 

minimum daily, 2.5 second-feet Oct. 1.

1913-24, 1937-47: Maximum discharge observed, 2.660 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 Oct. 1 to Nov. 30 and those for periods of ice 

errect, which are fair. Diversions above station For irrigation.

Discharge, in second-feet, water year October 1946 tc September 19*7

Day

1

2

3

4

5

6

7

8

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

3.9

4.5

10

21

17

16

16

17

17

16

12

14

14

13

14

20

21

20

15

16

IS

IS

15

11

10

9.2

14

24

18

14

NOT.

13

16

15

16

22

20

22

23

40

49

38

38

40

48

49

46

48

49

45

47

92

81

61

58

58

60

64

63

57

56

-

Dec.

57

58

54

47

54

35

40

43

51

37

40

51

33

 40

57

54

40

41

42

42

40

48

50

41

34

32

34

32

27

23

20

Jan.

18

17

18

19

20

22

24

24

23

21

 20

20

20

20

20

19

19

19

19

20

20

21

22

22

22

23

23

23

23

23

23

Fab.

23

23

23

24

25

25

26

25

25

24

24

23

23

24

25

27

31

33

35

35

35

35

35

35

33

32

30

30

_

_

-

Month

October . ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January

February. ..................................

March.. .....................................

April. .....................................

May

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

30

32

31

33

35

37

38

37

33

56

108

*92

72

79

128

193

220

206

134

136

110

108

115

81

63

65

55

61

65

88

78

Apr.

58

59

61

56

48

46

48

44

50

51

60

54

56

65

75

71

65

78

71

67

80

76

76

64

52

45

47

47

42

41

Seoondfoct-days

447.1

1,334

1,257

17,351.7

CA*J O**

788

2,674

1,753

8,914

11,138

1,640

642

416.0

31,650.1

May

49

63

108

298

556

661

610

781

872

652

502

375

252

218

172

164

146

134

128

122

160

178

186

148

150

181

233

312

222

156

125

Maximum

24

92

58

_

24

35

220

80

872

858

173

50

32

872

June

107

101

220

260

217

119

103

206

598

676

751

781

568

302

222

218

267

302

269

463

858

742

538

405

340

335

335

358

250

227

Minimum

2.5

13

20

1.7

17

23

30

41

49

101

12

14

8.6

2.5

July

1T3

IE"

128

1J7

126

81

5««

647 1?

67

5+

37

27

28

37

4<5

l*>

3S

3?

28

3<

3T

23

23

16

14

14

13

12

12

14

Aug.

16

18

20

19

21

18

16

22

28

50

36

27

23

23

26

24

21

18

15

14

16

20

20

IS

17

16

15

IB

17

16

14

M>«n

14.4

44.5

40.5

47.5

20.9

28.1

86.3

58.4

288

571

52.9

20.7

13.9

86.7

Sept.

13

12

11

11

11

11

9.2

8.8

11

13

14

13

12

10

11

11

14

18

52

23

20

17

16

16

15

14

12

12

12

13

Runoff in 

acre-feet

887

2,650

2,490

34,420

1,280

1,560

3,300

3,480

17,680

22,090

3,250

1,270

825

62,760

* Winter discharge measurement made on this da?.

Mote.- Stage-discharge relation affected by ice Dec. 17-19, Dec. 28 to Mar.
178 GREEN RIVER BASIN

Blacks Pork near Lyman, Wyo.

Location.- Water-stage recorder, lat. 41°27', long. 110°10', in sec. 21, T. 17 N., R. 113 

W., 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 1947.

Extremes.- Maximum discharge during year, 2,390 second-feet June 12 (gage height, 6.58 

reet), from rating curve extended above 1,400 second-feet; minimum daily, 10 secondfeet Oct. 1, 3.

1937-40, 1941-47: Maximum discharge, that of June 12, 1947; no flor Aug. 8, 15-22, 

1940.

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

which are poor. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

iO

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

10

12

10

12

43

75

61

61

47

42

36

27

25

26

28

*28

88

102

66

58

48

47

44

44

43

35

37

80

208

142

92

Nov.

52

32

28

27

48

46

44

42

36

*34

32

33

37

44

52

50

56

54

66

170

160

140

120

110

110

120

120

120

120

115

-

Dec.

115

115

95

78

70

72

82

94

100

74

80

68

80

*149

160

» 95

80

88

95

100

85

90

100

80

85

95

105

90

70

50

35

Jan.

28

26

25

26

29

32

36

37

35

34

*32

31

30

29

29

29

29

28

29

31

33

35

35

37

39

40

40

40

39

36

35

Feb.

35

36

38

40

43

45

45

44

43

42

41

41

*42

44

46

49

52

56

58

56

56

56

56

56

56

50

47

43

_

_

-

Month

December . ..................................

Calendar year 1943 ......................

March ......................................

May........................................

September . .................................

Water year 1946-47 ......................

Mar.

45

46

43

47

49

47

50

54

60

140

220

160

150

180

220

300

400

450

*390

350

330

320

330

300

172

155

151

130

137

146

175

Apr.

180

151

137

132

126

121

104

100

98

*135

170

202

236

278

245

236

210

190

192

182

167

202

233

236

219

172

146

151

153

153

Seoondfoot-days

2,775

36.J01.0

973

79,632

May

153

158

227

380

580

800

845

1,210.

1,700

1,640

1,380

1,220

1,020

795

730

645

620

645

660

650

640

620

620

615

526

485

544

705

865

790

625

Maximum

160

.

108

2,290

June

521

480

485

557

562

480

424

428

845

1,440

1,510

2,290

1,510

1,060

755

557

526

680

765

914

1,940

2,080

1,520

1,080

835

700

645

675

600

580

Minimum

35

6.4

18

10

July

508

458

356

294

275

242

202

175

208

248

263

192

148

128

126

139

142

128

110

104

106

112

104

100

90

7]

59

56

50

45

47

Aug.

54

61

119

106

108

85

71

71

119

353

263

163

115

94

96

94

88

72

64

57

53

59

59

58

54

48

44

54

58

51

41

M"in

89,5

99.5

32.4

218

Sept.

33

31

26

23

22

22

20

18

20

26

26

26

25

20

20

20

47

45

108

71

53

42

35

33

31

31

26

24

24

25

Runoff in 

acre- feet

5,500

72,010

1,930

157.900

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 5 to Dec. 28,. Mar. 14-24. Ko gage-height 

record Dee. 29 to Mar. 13 (stage-discharge relation affected by ice during entire p?riod); discharge 

computed on basis of 2 discharge measurements and weather records.
GREEN RIVER BASIN 179

East Fork of Smith Fork near Robertson, Vfyo.

Location.- Water-stage recorder, lat. 41°03', long. 110°24', on west line of sec. 4, T. 

Vd N., R. 115 Vf., 1 mile upstream from Gilbert Creek and 11 miles southeast of 

Robertson.

Drainage area.- 53.0 square miles.

Records available.- July 1939 to September 1947 (no winter records 1942-45).

Extremes.- Maximum discharge during year, 377 second-feet June 9 (gage height, 2.63 feet), 

from rating curve extended above 210 second-feet; minimum recorded, 5.2 second-feet 

Oct. 1 (gage height, 0.58 foot), but may have been less during period o<" no record.

1939-47: 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 second-feet 

Jan. 23, 1940 (discharge measurement), but may have been less during pe-lod of Ice 

effect.

Remarks.- Records fair except those for period of no gage-height record, which are poor. 

No diversion above station.

Discharge, in second-feet, water year October 1946 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.5

14

12

11

13

12

11

13

11

13

12

11

12

*11

11

11

11

10

14

15

12

11

10

10

9.9

8.8

9.9

8.8

9.9

b!4

b!3

Nov.

b!4

b!2

b!2

b!2

16

18

17

16

14

*11

10

11

11

12

11

10

10

11

11

11

11

11

11

12

11

11

12

12

11

11

-

Dec.

, 10

Jan.

' 7.5

Feb.

\

' 8.5

-

-

"

Month

October. ...................................

November. ........................ .........

December . ..................................

Calendar year 1946 ......................

January. ................................'. .

February. ......... .................. .....

March...... .......................... .....

April ......................................

May............................... ........

June .......................... ...........

July. ......................................

August .....................................

September. ... ............................

Water year 1946-47 .... .................

Mar.

.

> 10

'

Apr.

15

-

Secondfoot-days

351.8

363

310

14,758.5

232.5

238.0

310

450

4,931

5,709

3,535

1,300

606

18,336.3

May

25

27

30

34

40

48

60

120

220

200

170

161

148

137

127

146

178

190

185

204

231

Z43

240

207

231

240

276

266

201

178

168

Maximum

15

18

249

276

349

207

61

31

349

June

175

198

198

157

170

150

198

318

349

225

185

139

135

148

124

139

213

195

213

311

269

207

180

152

135

148

170

180

180

148

-

Minimum

6.5

10

_

25

124

58

26

16

-

July

141

148

163

178

161

146

144

207

168

175

146

127

114

105

108

132

112

102

94

90

90

87

82

75

68

62

69

66

58

59

58

Aug.

61

61

56

56

58

49

45

51

56

58

56

44

41

39

43

38

35

30

29

28

28

51

43

36

34

31

30

28

26

31

28

Me in

11.3

12.1

10

40.4

7.5

8.5

10

15

159

190

114

41.9

20.2

50.2

Sept.

24

23

21

19

19

20

18

16

18

21

31

27

23

19

17

16

20

27

30

23

19

18

16

16

20

18

18

16

16

17

-

Runoff in 

acre-feet

698

720

615

29,290

461

472

615

893

Q yon

,11 1 320

7,010

2,580

1,200

36,360

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 11 to May 11 (stage-discharge relation affected by ice during 

part of period); discharge computed on basis of veather recordf and records for stations on nearby 

streams.
180 GREEN RIVER BASIN

Smith Fork at Mountalnview, 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 1947.

Extremes.- Maximum discharge during year, 796 second-feet May 9 (gage height, 3.93 feet); 

minimum daily, 6.7 second-feet Oct. 1.

1941-47: Maximum discharge, 946 second-feet May 24, 1942 (gage height, 3.96 feet), 

from rating curve extended above 425 second-feet; minimum daily, 4.8 sscond-feet Nov. 7, 

13, 1942.

Remarks.- Records excellent above 60 second-feet and good below except those for periods 

or ice effect or no gage-height record, which are fair. Many diversions above station 

for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

6.7

7.6

9.0

10

a!2

a!3

a!4

al4

a!3

a!4

a!5

a!4

*16

17

17

17

30

25

22

21

22

22

23

22

21

22

22

28

35

27

23

Nov.

23

. 22

22

22

25

21

21

17

*25

33

36

37

37

37

35

28

30

30

29

31

30

29

31

33

36

36

35

32

31

30

-

Dec.

31

32

33

34

33

31

29

28

33

34

31

30

26

*28

31

27

26

26

26

27

25

26

27

28

29

30

30

30

27

24

20

Jan.

(*)

. 13

Feb.

(*)

18

_

-

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January. ................................. .

February ...................................

March. .....................................

April. .....................................

Hay MOJT ........................................

June .......................................

July. ......................................

August .....................................

Septsmber ..................................

Water ysar 1946-47 ......................

Mar.

20

20

20

20

20

21

21

21

21

21

22

*22

24

27

32

36

42

48

52

55

54

52

51

48

46

43

36

44

53

76

60

Apr.

47

51

48

38

35

34

33

32

36

*32

36

36

51

61

74

70

64

74

51

53

76

85

82

67

58

51

54

53

54

67

-

Secondfoot-days

564.3

884

892

16 j 765*6

403

504

l!s03

8,501

6,919

1,340.6

610

394

23,742.9

May

74

106

158

218

278

288

334

435

598

615

480

346

291

297

230

255

310

291

270

258

276

273

246

198

170

175

190

282

246

170

143

Maximum

35

37

34

76

85

615

571

109

54

36

615

June

123

118

125

134

104

97

92

141

420

307

420

470

346

307

238

175

179

246

202

270

571

435

300

225

179

148

138

134

141

134

-

Minimum

6.7

17

20

4.9

20

32

74

92

10*

9.6

6.7

July

109

96

79

79

79

72

70

71

93

94

78

54

43

30

26

34

38

31

25

17

13

16

14

12

10

9.6

9.6

9.6

9.6

9.6

9.6

Aug.

10

17

20

19

19

16

12

16

30

54

46

36

28

26

28

25

14

16

17

14

11

13

15

13

14

13

11

15

17

13

12

M«ian

18.2

29.5

28.8

45 Q

13

18

36.4

53.4

274

231

43 2

19 .*7

13.1

65.0

Sept.

11

11

10

10

10

10

9.6

9.6

9.6

9.6

9.6

11

11

11

10

10

13

17

36

30

20

17

14

13

13

13

11

11

11

12

Runoff in 

acre-feet

1,120

1,750

1,770

33,270

799

1,000

2,240

3,180

16,860

13,720

2* 660 

1,210

781

47,090

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for stations on rearby streams.

Note.- Stage-discharge relation affected by Ice Nov. 2-5, 13-15, 21-30, Dec. 1-4, 9-12, 17-28, 

Mar. 21-23. No gage-height record Dec. 29 to Mar. 20 (stage-discharge relation affected by Ice 

during entire period); discharge computed on basis of 3 discharge measurements and weather records.
GREEN RIVER BASIN 

West Pork of Smith Pork near Robertson, Wyo.

181

Location.- Water-stage recorder, lat. 41°01', long. 110°29', in sec. 15, T. 12 N. t R. 

116 W., three-quarters of a mile downstream from Archie Creek and 13 miles southwest 

of Robertson.

Drainage area.- 37.2 square miles.

Records available.- July 1939 to September 1947 (no winter records 1942-45).

Extremes.- Maximum discharge recorded during year, 296 second-feet May 16 (gage height, 

2.28 feet), but may have been higher on May 9; minimum recorded, 1.6 second-feet Sept. 

4 (gage height, 0.71 foot), but may have been less during period of no record.

1939-47: Maximum discharge, 540 second-feet May 25, 1942 (gage heigl 4:, 2.76 feet), 

from rating curve extended above 190 second-feet; minimum, 0.2 second-foot Aug. 13, 

1940, Peb. 25, 1941 (discharge measurement), but may have been less during winter.

Remarks.- Records fair 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 1946 to September 1947

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.9

5.0

3.5

4.4

6.0

5.5

4.7

6.0

4.7

5.0

5.0

4.4

6.0

4.7

5.5

5.5

7.5

5.5

5.5

6.0

6.5

4.7

5.0

5.0

4.4

4.1

4.7

6.5

7.5

11

7.5

Nov.

8.0

5.5

5.5

6.5

7.0

6.5

6.0

5.5

5.0

4.1

3.8

3.8

3.8

4.1

4.1

3.5

3.8

4.4

4.7

4.7

4.7

4.7

5.5

7.5

5.5

4.7

4.4

4.4

4.7

4.4

-

Dec.

4.7

4.4

5.0

5.5

5.0

4.7

4.7

4.4

4.4

4.7

5.5

5.5

5.5

4.7

4.4

4.1

3.8

1)3.8

b4.0

1)4.1

b3.8

b4.0

b4.2

b4.0

1)4.3

4.7

4.8

4.5

3.9

2.9

2.4

Jan.

, 2.7

Feb.

' 4.0

-

-

-

Month

October ....................................

November . ........................ .........

December ...................................

Calendar year 1946 ......................

January ............................. .... .

February ............................ .....

March. .....................................

April ............................ ......

May. .....................................

June. ............... ... ..................

July ...................... ................

August .....................................

September . ... ... ...... . . ...........

Water year 1946-47 ... ... ..............

Mar.

' 7.8

/

Apr.

> 19

-

Secondfoot-days

169.2

150.8

136.4

6,983.8

83.7

112.0

241.8

570

4,551

2,234

663

283.7

116.7

9,312.3

May

30

60

90

120

150

180

200

230

275

240

208

165

168

165

168

204

188

174

165

174

174

144

115

100

102

100

100

123

98

75

66

Maximum

11

8.0

5.5

180

275

135

34

25

7.5

275

June

58

56

58

58

42

39

46

60

83

79

91

95

123

126

93

69

71

71

60

98

135

115

102

83

69

62

51

48

54

39

-

Minimum

1.

3.

2.'

.

30

39

14

2.C

1.

_

July

32

29

26

26

24

22

23

34

34

32

24

20

19

16

20

24

18

17

15

15

16

20

22

19

15

15

14

15

15

20

22

Aug.

22

25

22

22

18

15

14

16

16

18

16

8.5

6.5

6.0

7.5

5.0

3.8

2.9

2.9

2.6

3.8

5.0

3.5

3.2

2.9

2.9

2.6

2.9

2.6

2.6

2.0

Hern

} 5.46

5 5.03

1 4.40

3 19.1

2.7

4.0

7.8

19

147

74.5

21.4

3 9.15

1 3.89

25.5

Sept.

1.9

1.9

1.9

1.7

2.9

3.5

2.3

1.9

5.5

6.5

4.4

3.8

3.5

2.6

2.6

2.9

6.0

6.0

7.5

5.5

5.0

4.4

3.8

3.8

3.8

3.8

3.5

3.5

3.8

6.5

Runoff in 

acre- feet

336

299

271

13,860

166

222

480

1,130

9,030

4,430

1,320

563

231

18,480

b Stage-discharge relation affectea by ice.

Note.- No gage-height record Dee. 26 to May 9 (stn;e-discharge relation affected by ice during 

most of period); discharge computed on basis of weather records.
182 GREEN RIVER BASIN

Hams Fork near Frontier, Wyo.

Location.- Hater-stage recorder, lat. 41°51 ! , long. 110°33 ! , in SWij sec. 26, T. 22 N., 

K. 116 W., li miles upstream from Willow Creek and 3-j? miles northwest of Frontier.

Drainage area.- 298 square miles.

Records available.- May 1945 to September 1947.

Extremes.- 1945-46: Maximum daily discharge during year, 1,610 second-fest Apr. 20;

minimum daily determined, 13 second-feet Aug. 10-13, Sept. 11, but may have been less 

during period of ice effect.

1946-47: Maximum discharge daring year, 1,370 second-feet May 13 (gage height, 

5.65 feet); minimum observed, 12 second-feet Nov. 13 (discharge measurement), but may 

have been less during period of ice effect.

1945-47: Maximum daily discharge, that of Apr. 20, 1946; minimum discharge observed, that of Nov. 13, 1946.

Remarks.- Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. Several small diversions above station for irrigation and 

domestic water supply for town of Kemmerer.

Discharge, In second-feet, 1945-47 

1945-46

Day

I

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.

25

24

23

23

23

22

22

22

22

22

22

23

24

25

26

28

32

*35

35

34

33

30

30

28

26

25

25

25

25

25

32

Nov.

38

41

38

37

38

28

(*)

-

Dec.

> 26

Jan.

 25

(*)

Feb.

' 26

_

_

-

Mar.

31

30

28

26

E4

33

26

22

26

26

26

43

47

40

35

34

37

29

56

54

54

52

50

46

45

50

65

70

80

92

120

Apr.

115

108

100

110

120

135

IPS

160

180

170

160

190

230

42O

510

760

1 , 100

1,300

1 , 600

1,610

1 , 500

1,390

1,200

1,280

1,550

1,500

1 , 600

1 , 590

1 , 500

1,350

May

1,250

922

810

814

846

886

882

864

846

914

774

634

574

542

514

462

458

470

498

530

506

494

482

510

502

458

450

458

518

570

518

June

466

442

414

398

414

454

506

514

498

470

450

442

426

394

366

330

311

302

311

305

269

242

215

208

220

195

158

150

122

114

July

110

104

96

94

96

84

78

74

68

57

51

54

54

54

52

433-i

35

333"!

22

20

22

23

27

30

3C

46

47

49

47

Aug.

43

35

24

26

25

23

20

16

14

13

13

13

13

25

30

35

32

32

35

34

32

36

50

45

39

30

25

25

24

22

25

Sept.

38

65

64

68

72

66

58

50

44

27

13

15

16

?0

28

25

25

27

28

26

31

30

31

33

32

29

30

30

28

27

-

* Winter discharge measurement made on this day.

Note.- Stage-disehargp relation affected by ire Nov. 6 to Mar. 2? (no gage-hei-ht record Dec. .'1

to Jan. 16; discharge computed on basis of weather records). No gage-height record Mar. 23 to May

1, July 28 to Aug. 26, Aug. 28 to Sept. 50; discharge computed on basis of records for station at

Dlamondvllle.
QREEN RIVER BASIN 183

Discharge, in second-feet, of Hams Fork near Frontier, Wyo., 1945-47 Continued

1946-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

S3

24

25

26

27

28

29

30

31

Oot.

26

24

22

21

24

25

25

24

24

24

24

23

25

24

24

23

22

22

22

21

20

20 *20

21

21

21

22

30

27

24

24

Nov.

24

23

23

24

25

26

26

22

22

22

22

23 *24

25

23

21

21

22

24

22

22

20

21

23

22

21

24

26

28

29

-

Deo.

1 »23

Jan.

(»)

18

Feb.

' 22 (»)

,

_

-

Bar.

24

22

23

24

25

24

22

22

24

24

23

26

28

29 *31

140

260

310

290

260

230

230

190

185

140

106

106

108

110

158

130

Apr.

135

135

152

138

130

140

142

144

115

96

96

102

98

106

128

324

410

466

486

562

574

554

474

394

386

402

470

562

644

729

-

Hay

742

824

1,020

1,170

1,250

1,300

1,300

1,260

1,220

1,230

1,280

1,330

1,330

1,100

891

752

688

670

648

648

626

614

622

598

554

530

558

738

756

606

578

June

598

582

542

510

486

470

478

458

598

747

711

999

945

670

578

534

502

490

486

478

546

618

570

458

383

334

320

314

299

296

July

269

233

215

202

192

175

158

158

155

155

148

112

98

96

90

82

86

90

87

78

76

76

76

70

64

57

55

55

59

86

118

Aug.

122

126

120

120

118

78

74

74

76

84

82

78

76

76

76

80

78

76

76

76

80

80

76

76

76

75

75

74

74

72

72

Sept.

70

69

66

52

50

50

47

47

46

35

33

33

31

31

33

31

36

36

35

34

35

34

35

35

35

35

31

33

33

33

-

Winter discharge measurement made on this day. 

Note.- No gage-height record Oct. 1-22, Apr. 6-12j discharge computed on basis cf records for 

station at Diamondville. Stage-discharge relation affected by ice Nov. Z to Mar. 29.

Monthly discharge, in second-feet, 1945-47

Month

December. ...................................

Calendar year .......................

Vtnir

September. ..................................

Water year 1945-46 .......................

December. ...................................

Calendar year 1946 .......................

May. ........................................

September . .................................

Water year 1946-47 ......................

Secondfoot-days

806

.

23,503

19,956

10,106

1,680

854

1,076

62,589

719

713

62,207

558

3,324

9,294

27,433

16,000

3,671

2,596

1,204

66,828

Maximum

-

_

1,610

514

110

50

72

1,610

30

1,610

310

729

1,330

999

269

126

70

1,330

Minimum

-

.

100

450

114

20

13

13

13

20

-

22

96

530

296

55

72

31

-

lf«an

26

.

45.1

783

337

54.2

27.5

35.9

171

23.2

23.3

23

170

18

107

310

885

533

118

83.7

40.1

183

Runoff in 

acre-feet

1,600

.

1,440

2,770

46,620

39,580

20,040

3,330

1,690

2,130

124,100

1,430

1,390

1,410

123,400

1,110

1,220

6,590

18,430

54,410

31,740

7,280

5,150

2,390

132,600

852060 O - 49 - 13
184 GREEN RIVER BASIN

Hams Fork at Diamondville, Wyo.

Location.- Staff gage, lat. 41"46', long. 110°32', in SW£ sec. 24, T. 21 N., R. 116 W., 

at fiignway bridge at Diamondville. Former gage at same site, but at datum 1 foot 

higher.

Drainage area.- 386 square miles.

Records available.- May 1918 to February 1933, May 1945 to September 1947 (no winter 

records iy^a-30).

Extremes.- 1945: Maximum discharge observed during period May to September, 582 secondFeet June 8 (gage height, 3.62 feet); minimum daily, 15 second-feet Sept. 5-8.

1945-46: Maximum discharge observed during year, 1,650 second-feet Apr. 20, 21, 

28 (gage height, 5.66 feet); minimum daily observed, 13 second-feet Aug. 11-14, but 

may have been less during period of ice effect.

1946-47: Maximum discharge observed during year, 1,460 second-feet May 7 (gage 

height, 5.30 feet); minimum daily not determined, occurred during period of no gageheight record.

1918-33, 1945-47: Maximum discharge observed, 3,250 second-feet May 11, 1923 

(gage height, 5.06 feet, present datum), from rating curve extended above 1,800 

second-feet; no flow Aug. 29-31, 1919, July 6, 7, Aug. 14, Aug. 25 to Sept. 27, 1931.

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, 1945-47 

1945

Day

1

t

3

4

I

I

T

10

u

IX

13

14

11

1C

IT

19

19to

81

28a*

24

28

26

27

28

29

30

31

Oot. Nor. Deo. Jan. F«b. Mar. Apr. May

_

_

_

_

-

_

512

516

522

505

508

519

456

463

418

372

346

418

435

372

400

400

350

294

260

256

260

282

249

253

350

June

516

519

488

491

530

558

568

578

572

540

533

463

446

449

456

432

386

331

306

296

304

323

340

359

362

346

368

386

326

296

-

July

269

247

228

198

180

171

182

1*6

139

130

128

112

99

99

96

85

47

45

51

49

41

40

34

32

30

36

41

37

34

34

32

Aug.

31

27

29

33

30

30

29

28

27

27

27

26

29

33

31

28

24

20

28

33

37

36

34

37

34

26

22

22

21

17

16

sept.

16

16

16

16

15

15

15

15

21

19

17

16

16

16

16

16

16

16

16

17

17

16

20

22

2-1

21

22

22

23

23

852060
GREEN RIVER BASIN 185

Discharge, in second-feet, of Hams Pork at Diamondvllle, Wyo., 1945-47 Continued

1945-46

Day

1

2

3

4

5

6

7

8

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

33

22

22

22

22

22

22

22

22

22

24

23

23

23

26

29

*29

30

30

30

30

26

26

24

23

22

23

23

23

26

Nov.

29

32

32

30

32

34

32

( )

-

Dec.

28

Jan.

27

(*)

Feb.

C)

28

_

_

-

Mar.

31

31

29

27

25

35

30

23

27

*27

26

46

48

45

38

34

39

32

59

58

54

54

53

47

46

53

68

73

83

94

120

Apr.

115

115

104

115

126

138

170

169

190

180

166

192

241

446

533

782

,180

,360

,510

,650

,600

,470

,200

,240

,340

,490

,620

,610

,490

1,330

May

1,280

932

790

814

832

870

860

837

824

905

802

678

589

550

526

502

446

452

502

530

519

502

452

516

512

456

452

452

522

582

536

June

460

435

404

391

391

442

484

502

484

449

424

414

404

370

322

308

288

271

265

273

247

217

199

182

196

192

182

138

133

122

-

July

120

116

109

109

108

106

96

83

80

71

58

56

58

59

61

50

45

44

31

30

34

23

21

23

23

29

40

46

46

47

48

Aug.

46

41

29

24

25

24

23

21

15

14

13

13

13

13

25

34

34

32

32

34

33

32

44

47

36

26

24

24

24

23

23

Sept.

29

58

66

61

69

69

59

51

48

35

18

14

16

16

26

24

24

24

27

26

32

30

30

32

31

30

30

30

30

26

-

* Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Nov. 7 t;o Mar. 1.

Day

1

2

3

4

5

6

7

8

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

23

21

23

25

24

24

23

23

23

22

24

23

23

23

24

25

24

24

23

23

24

24

24

24

24

39

36

41

24

Nov.

24

23

25

29

28

31

31

31

29

b26

b23

*b25

b27

b29

b28

626

21

22

26

23

25

20

24

26

25

22

28

b29

b29

b28

-

Dec.

(«)

27

Jan.

(*)

. 21

Feb.

(*)

26

-

-

-

Mar.

b24

22

23

25

26

26

22

23

26

25

24

28

*29

31

75

1§6

283

355

310

271

235

255

198

205

150

108

108

108

112

116

204

Apr.

170

164

187

164

127

142

146

157

120

99

96

102

90

121

130

340

442

488

554

678

650

622

575

400

385

418

435

610

710

750

-

May

758

810

1,050

1,170

1,310

1,390

1,450

1,290

1,170

1,200

1,290

1,360

1,380

1,120

885

742

702

674

650

650

642

610

630

618

575

540

558

722

762

650

575

June

610

582

564

512

480

463

470

522

582

762

710

1,010

1,050

650

564

516

491

491

470

460

522

614

586

460

385

298

265

285

275

265

-

July

241

211

198

184

176

168

148

145

145

145

144

136

128

108

80

78

85

85

86

86

86

83

85

72

58

58

58

58

58

61

86

Aug.

120

120

120

132

124

124

100

80

108

100

83

79

72

82

86

86

86

80

78

79

83

83

ao

78

78

78

75

72

72

72

72

Sept.

72

71

72

71

65

58

58

58

58

58

58

52

46

46

46

46

46

46

52

53

47

47

47

42

35

34

34

34

34

34

-

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 1 to Feb. 28 (stage-discharge relation probably affected by Ice 

during entire period); discharge computed on basis of 3 discharge measurements and veather records.
186 GREEN RIVER 'BASIN

Monthly discharge, in second-feet, of Hams Pork at Diamondville, Wyo., 1945-47

Month

December. ...................................

Calendar year .......................

March. ......................................

April. ......................................

The period. ...... ..... ... .. ...

Calendar year .......................

March ............................. .........

April.............. ........................

u- v

September . ..................................

Water year 1945-46. ......................

December ....................................

Calendar year 1946 .......................

April .......................................

May.........................................

September. ..................................

Ifater year 1946-47 .......................

Secondfoot-days

_

-

23,872

1,061

62,913

837

62,731

1,521

69,144

Maximum

?3

-

-

_

69

1,650

1,650

355

132

72

1,450

Minimum

_

-

104

446

14

-

.

2°

540

34

-

Mean

429

-

31 9

-

35.4

172

25 2

27

172

50.7

189

Runoff in 

acre-feet

25 520

53,710

-

2,100

124,800

1,660

124,400

3,020

137,100
GREEN RIVER BASIN 187

Henrys Fork near Lonetree, Wyo.

Location.- Water-stage recorder, lat. 41°00', long. 110°17', in SE£ sec. 20, T. 12 N., R. 

J-il W., at Utah-Wyoming 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 1947 (no winter records 1943-45).

Extremes.- Maximum discharge during year 562 second-feet May 8 (gage height, 3.53 feet), 

I'rom rating curve extended above 250 second-feet; minimum not determined, occurred 

during period of no gage-height record.

1943-47: Maximum discharge, 822 second-feet June 26, 1944 (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 excellent above 25 second-feet and fair below except those for periods 

or ice effect or no gage-height record, which are poor. One diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

10

14

14

14

14

14

14

15

13

14

15

13

14

13

13

13

14

12

14

15

13

13

11

13

13

11

12

12

15

12

10

Nov.

. 10

-

Dec.

> 9,5

Jan.

> 8.5

Feb.

» 9.0

-

-

-

Month

October ....................................

November. ............ ........ . . ........

December . ..................................

Calendar year 1946 ...................

January .................. ............. . .

February ............................. . .

March. .....................................

April ................................ .....

May........................................

June .......................................

July. ...... ............. .................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

> 10

>

Apr.

> 20

-

Secondfoot-days

407

300

294.5

10,424.2

263.5

252.0

310

600

5 ,389

4,845

2,969

1,092

556

17,278.0

May

42

50

60

80

100

150

210

334

362

266

179

130

132

153

120

144

172

179

165

193

228

242

218

165

204

228

252

221

153

135

122

Maximum

15

_

207

_

362

302

207

51

25

362

June

125

141

138

115

128

115

165

302

274

138

128

115

120

130

118

144

218

156

204

282

235

190

1B2

147

132

150

150

144

141

118

-

Minimum

10

_

_

_

42

115

50

22

16

-

July

118

122

135

133

125

118

133 20"?

13 5

130

10?

91

91

87

91

101

91

87

8?

B2

81

81

77

67

62

5S

5?

51

51

51

50

Aug.

51

51

47

48

48

43

40

41

47

47

44

39

37

36

38

34

31

29

27

26

26

35

30

27

26

24

24

24

22

26

24

Mian

13.1

10

9.5

28.6

8.5

9.0

10

20

174

162

95.8

35.2

18.5

47.3

Sept.

21

21

20

19

19

20

18

18

18

20

19

18

18

17

16

16

19

22

25

21

19

18

18

18

17

16

16

16

16

17

-

Runoff in 

acre-feet

807

595

584

20,660

523

500

615

1,190

10,690

9,610

5,890

2,170

1,100

34,270

Note_._- Stage-discharge relation affected by Ice Oct. 30 to Nov. 12. Ho gage-height record Nov. 13 

LI May 7; discharge computed on basis of weather records and records for stations on nearby streams.
188 GREEN RIVER BASIN

Henrys Fork near Burntfork, Wyo.

Location.- Water-stage recorder, lat. 41°02 I , long. 110°03', In sec. 4, T. 12 N., R. 112 

W., at Ulnta-Sweetwater county line, 2-g- miles upstream from Burnt Fork and 2f miles 

west of Burntfork School.

Drainage area ± - 242 square miles.

Records available.- October 1943 to September 1947.

Extremes.- Maximum discharge during year, 924 second-feet June 21 (gage height, 4.93 

feet), from rating curve extended above 500 second-feet; minimum daily, 14 secondfeet Oct. 1, Jan. 3, 4, 9-15.

1943-47: Maximum discharge, 1,040 second-feet June 26, 1944, from rating curve 

extended above 400 second-feet; maximum gage height, that of June 21, 1947; minimum 

daily discharge, 7.4 second-feet July 21, 1946.

Remarks.- Records good except those for period of ice effect, which are fair. Many 

small diversions above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

21

24

26

30

Oct.

14

16

21

24

30

34

36

39

38

38

33

53

34

33

*31

28

35

37

30

29

32

32

33

29

29

32

31

45

55

38

39

Nov.

37

43

38

48

52

53

54

49

47

42

40

*44

44

46

47

47

47

44

37

35

37

40

42

43

42

40

37

34

32

31

-

Dec.

32

34

36

39

41

38

36

33

31

36

40

40

*37

35

32

33

31

31

32

32

31

32

33

33

35

36

36

36

34

28

22

Jan.

18

15

14

14

15

16

16

15

14

*14

14

14

14

1-4

14

15

15

16

16

17

18

18

19

19

19

19

19

19

18

18

18

Feb.

18

18

19

19

20

20

19

19

19

20

20

*21

22

23

24

25

26

28

28

28

27

27

27

27

25

25

24

23

_

-

Month

December. ..................................

Calendar year 1946 ......................

March ....................... ....... . . .

April .... .............. ..................

May.............. .........................

September ................. ..............

Water year 1946-47 ... . . . . ...... ....

Mar.

23

22

22

22

23

24

24

24

24

24

24

*24

24

26

32

39

46

56

62

62

61

60

56

55

52

55

51

60

59

56

55

Apr.

42

44

45

38

33

32

29

31

*32

28

29

31

65

83

76

61

57

61

56

57

66

81

73

63

52

48

51

51

51

52

-

Seoondfoot-days

1,055

14,599.1

641

1,247

1,518

7,197

9,126

4,360

2,147

987

31,062

May

59

76

91

102

119

143

172

293

448

460

428

279

215

215

192

176

199

215

2U8

203

220

246

258

210

199

228

297

488

329

223

208

Maximum

41

175

19

28

62

83

488

811

360

106

52

811

June

197

203

226

236

182

182

178

297

496

360

368

392

252

223

195

150

203

290

223

372

811

582

442

382

366

265

258

258

286

251

 Minimum

22

7.4

14

18

22

28

59

150

40

20

14

July

195

175

165

175

162

146

175

335

360

314

185

132

110

103

109

155

136

112

96

82

100

104

102

116

82

71

67

69

73

73

81

Aug.

94

106

90

90

103

80

69

88

90

100

92

81

75

80

85

84

69

58

51

49

49

55

55

50

45

42

42

51

44

40

40

Mean

34.0

40. 'I

16.3

22.9

40.2

50.6

232

304

69.3

32.9

85.1

Sept.

35

31

32

29

30

31

29

28

32

38

37

35

25

20

21

23

28

43

52

49

40

37

35

35

35

34

31

31

30

31

Runoff in 

acre-feet

2 520

2,090

28,960

1,000

1,270

2,470

3,010

14,280

18,100

8,650

4,260

1,960

61,610

* Winter discharge measurement made on this day.

Note.- Stago-discharge relation affected by ice Nov. 10 to Mar. 23.
GREEN RIVER BASIN 189

Henrys Fork at Linwood, Utah

Location.- Staff gage, lat. 41°00', long. 109 D 39', in sec. 23, T. 12 N., R. 109 W., 300 

reet north of Wyoming-Utah State line at Linwood. Datum of gage is 5,995.24 feet 

above mean-sea level, adjustment of 1912. Prior to Aug. 24, 1944, rater-stage recorder at site 330 feet downstream, at datum 2.67 feet lower.

Drainage area.- 531 square miles.

Records available.- October 1928 to September 1947.

Average discharge.- 19 years, 80.2 second-feet.

Extremes.- 1944-45: Maximum discharge observed during year, 548 second-feet June 23 

(gageTieight, 3.56 feet), from rating curve extended above 480 second-feet; minimum 

not determined, occurred during period of no gage-height record.

1945-46: Maximum discharge observed during year, 748 second-feet July 25 (gage 

height, 4.20 feet), from rating curve extended above 480 second-feet; minimum daily, 

4.8. second-feet Aug. 7-11.

1946-47: Maximum discharge observed during year, 920 second-feet June 22 (gage 

height, 4.65 feet), from rating curve extended above 480 second-feet; minimum daily, 

25 second-feet Jan. 3.

1928-47: Maximum discharge, 6,750 second-feet Aug. 3, 1936 (gage height, 7.19 

feet, from floodmarks), by slope-area method; no flow several days in 1934, 1935, 

1939, 1940.

Remarks.- Records good Mar. 18 to Sept. 30, 1947, others fair, 

for irrigation. Gage read twice daily.

Diversions above station

Discharge, in second-feet, 1944-47 

1944-45

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

43

53

63

67

60

61

59

55

50

47

49

53

52

47

47

53

55

53

53

53

51

51

49

48

47

46

46

47

47

49

51

Nov.

53

53

54

54

50

51

49

49

49

49

50

49

46

47

45

39

40

40

(»)

. 40

-

Dec.

(*)

42

(*)

Jan.

> 44

Feb.

> 45

(*1

-

_

-

Mar.

' 75

Apr.

96

92

88

88

90

92

94

98

*108

99

64

59

64

77

70

64

55

70

172

192

230

228

139

97

114

82

77

76

86

89

-

May

99

125

134

137

134

134

134

139

174

222

242

275

326

344

356

312

182

161

166

177

172

166

123

95

72

110

128

123

134

137

203

June

169

125

117

289

208

200

149

123

108

139

169

106

97

146

172

154

142

91

70

95

128

242

467

377

338

320

233

214

169

156

-

Jily

121

89

97

112

100

loo

117

91

93

211

286

208

298

242

267

174

110

119

108

258

344

239

154

154

121

99

74

63

58

60

70

Aug.

67

72

88

244

156

104

144

117

34

74

62

58

146

182

149

125

86

a78

a 80

a96

a86

374

370

366

62

59

59

49

45

45

45

Sept.

45

48

45

46

46

46

45

44

43

40

39

36

36

38

38

35

38

38

40

40

39

38

42

46

42

40

53

60

89

86

-
190 GREEN RIVER BASIN

Discharge, In second-feet, of Henrys Pork at Llnwood, Utah, 1944-47--ContInued

1945-46

Day

1

2

3

4

5

6

7

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.

79

66

56

56

54

53

53

50

49

47

46

49

62

108

93

86

76

66

60

56

56

59

59

56

56

58

58

55

54

53

55

NOV.

60

56

58

59

59

59

59

42

27

37

49

41

45

47

67

 56

50

b50

b52

b54

56

60

b56

b58

b60

b60

bSO

b58

b56

b54

-

Dec.

50

Jan.

' 45

(*)

Feb.

C)

37

_

_

-

Mar.

(*)

> 80

Apr.

' 160

(»)

-

May

180

160

140

140

150

180

170

150

140

130

120

100

86

70

70

68

66

60

69

69

76

61

67

100

93

58

55

48

54

63

53

June

50

52

50

45

61

128

125

102

97

88

68

61

49

38

33

27

27

39

49

46

38

30

30

25

19

14

13

9.4

9.4

8.2

July

7.4

7.4

7-4

7.8

9.0

11

11

11

9.4

9.4

8.6

8.6

8.6

8.6

8.6

8.6

8.6

8.2

.8

.8

.4

.0

.0

.0

250

195

139

46

33

21

21

Aug.

20

17

13

12

9.4

7.0

4.8

4.8

4.8

4.8

4.8

6.3

29

42

24

9.8

7.0

6.6

6.3

6.3

9.0

25

49

40

16

35

26

24

17

13

9.8

Sept.

7.8

5.6

5.6

5.6

6.3

.0

.0

.0

.8

.8

8.6

306

410

128

43

37

35

37

32

35

36

32

33

29

31

25

26

25

26

27

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Dec. 1 to May 11 (stage-discharge relation affected by Ice during 

part of period); discharge aomputed on basis of 4 discharge measurements, weather records and 

records for stations on 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

Oot.

31

42

39

42

50

56

61

61

60

56

62

56

54

54

54

56

56

82

76

68

66

64

58

54

54

58

58

61

161

74

59

Nov.

54

55

50

54

58

70

76

74

64

55

*55

55

58

58

58

58

58

55

50

50

55

58

60

62

64

62

55

47

45

44

-

Dec.

47

52

58

70

62

60

58

60

64

66

64

 60

55

48

52

48

45

43

45

48

45

48

50

48

48

50

52

48

43

40

35

Jan.

30

27

25

26

28

30

30

30

 29

29

28

28

28

29

29

30

31

32

33

33

34

35

35

35

35

33

32

31

30

30

31

Feb.

32

34

36

38

39

39

38

37

37

38

 40

42

45

48

52

58

64

68

68

64

62

62

62

58

50

43

42

44

_

_

-

Mar.

46

48

46

44

42

42

44

45

50

75

 blOO

bllO

bl!5

b!30

blSO

b!60

b!80

197

216

197

236

157

166

208

81

60

81

76

106

102

76

Apr.

77

79

69

70

58

60

51

*60

66

69

64

83

79

205

141

110

86

85

81

77

76

106

106

88

83

83

77

70

72

74

May

69

77

106

137

184

255

300

308

514

536

530

308

320

280

278

272

275

308

306

278

286

345

324

264

320

308

331

400

379

331

303

June

269

269

303

317

283

269

247

356

445

454

460

600

430

394

289

238

252

415

328

356

760

814

469

385

400

379

322

258

238

241

July

236

241

184

186

18?

186

26?

335C

a41C

364

238

20?

12C

132

134

164

176

174

171

122

137

12C

106

134

12?

11C

94

9C

81

83

86

Aug.

116

189

120

124

122

124

110

114

159

171

145

139

124

120

148

137

118

108

85

70

70

79

77

74

68

69

74

92

70

66

66

Sept.

60

49

45

42

42

44

41

36

37

37

40

46

41

39

38

40

46

45

57

69

69

57

51

49

51

49

41

47

43

45

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station near Burntfork.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 3, 4, Nov. 12 to Mar. 10 (stage-discharge relation probably 

affected by Ice during entire period); discharge computed on basis of 4 discharge measurements and 

weather records.
GREEN RIVER BASIN 191

Monthly discharge, in second-feet, of Henrys Pork: at Linwood, Utah, 194-4-47

Month

December. ...................................

Calendar year 1944 .......................

March. ......................................

Man

September. ..................................

Water year 1944-45 .......................

November ................... .... ...........

December ....................................

Calendar year 1945 .......................

April .......................................

May.........................................

September ...................................

Water year 1945-46 ......................

October 1946 ...............................

December. ...................................

Calendar year 1946 ......................

March. ......................................

April .......................................

May.........................................

September . ..................................

Water year 1946-47 ......................

Secondfoot-days

1,302

44,123.7

2,872

1,361

32,072

1 1,550

32,859

2 480

1,429.1

22,069.8

1,612

22,240.8

2,505

9,312

11,240

5,411

3,348

1,396

44,096

Maximum

54

-

832

244

89

467

467

128

250

410

_

70

_

205

536

814

410

189

69

814

Minimum

-

3.7

_

55

72

58

45

35

.

_

_

5.6

4.8

31

35

4.8

32

42

51

69

81

66

36

25

Mean

CT D

42

121

44

45

175

150

92.6

45.4

87.9

L K

90.0 j

80

29 3

47.6

60.5

52,0

60.9

109

83.5

300

375

175

108

4S.5

121

Runoff in 

acre- feet

2,580

87,510

2,710

2,500

6,050

10,780

5,700

2,700

63,610

3,070

65,170

4 920

2,830

43,760

3,410

3,200

44,110

6,720

4,970

18,470

22,290

10,730

6,640

2,770

87,470
192 GREEN RIVER BASIN

Burnt Fork near Burntfork, Wyo.

Location.- Water-stage recorder, lat. 40°57', long. 110°04', in SW£ sec. 31, T. 3 N., 

RT~T7~E., half a mile west of Ashley National Forest boundary and 7 miles southwest 

of Burntfork.

Drainage area.- h'^.S square miles.

Records available.- April 1943 to September 1947 (no winter records 1943-45).

Extremes.- Maximum discharge during year, 241 second-feet May 8 (gage height, 6.43 feet); 

minimum not determined, occurred during period of no gage-height record.

1943-47: Maximum discharge, 740 second-feet June 26, 1944 (gage height, 7.28 feet), 

from rating curve extended above 200 second-feet; 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 1946 to September 1947

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.

10

16

11

12

13

12

12

12

10

7.4

9.0

12

11

11

*11

11

11

9.0

11

12

12

11

9.0

11

11

9.0

10

10

12

10

9.0

Nov.

\

 8.5

~

Dec.

' 8.0

Jan.

 7.0

Feb.

7.5

_

-

~

Month

October. ...................................

November . ........................ .........

December. ..................... ............

Calendar year 1946 ......................

January .................................. .

February- ......................... ........

March. ........................ ............

April ......................... ............

May................ .......... ............

June .......................... . ..........

July. ......................... ............

August ......................... ...........

September. ..............................

Water year 1946-47 ......................

* Winter discharge measurement made on thi

Mar.

> 8.5

Apr.

16

~

May

35

40

48

60

85

120

200

229

164

135

119

86

76

79

94

103

116

113

113

119

122

121

113

105

108

113

119

135

116

106

111

fSys «---

337.4 16

255 

248

7,368.5 88

217

210

263.5 -

480

3 4O3 229

3 1 652 180

2 , 620 154

1,542 61

694 36

13,921.9 229

June

113

118

130

119

113

110

121

178

180

137

137

127

111

87

78

85

119

122

122

158

148

134

138

130

113

106

108

103

108

99

-

Minimum

7.4

_

35

78

47

38

16

_

July

102

108

102

111

103

99

130

154

143

119

108

92

84

80

84

93

80

72

67

67

64

75

60

57

52

47

47

53

54

56

57

Aug.

56

57

55

61

59

57

55

55

5556'

55

53

51

51

53

50

47

46

44

44

46

50

50

46

45

43

43

41

40

40

38

Sept.

36

36

31

26

26

25

24

24

24

24

22

22

22

20

20

20

26

26

26

23

22

22

20

20

19

19

18

19

16

16

-

 ___ Runoff in Mean acre-feet

10.9 669

8 . 5 506

8.0 492

20.2 14,620

7.0 430

7.5 417

8.5 523

16 952

110 6,750

122 7 240

84.5 5J200

49.7 3,060 

23.1 1,380

38.1 27,620

3 day.

Note.- No gage-height record Oct. 17 to May 7 "(stage-discharge relation affected by ice during

entire period); discharge computed on basis of weather records.
GREEN RIVER BASIN 193

Sheep Creek near Manila, Utah

Location.- Water-stage recorder, lat. 40°53', long. 109°54', in NE-J- sec. 28, T. 2 N., R. 

18 E., 350 feet downstream from confluence of North and South Forks and 12 miles southwest or Manila.

Drainage area.- 45.9 square miles.

Records available.- October 1942 to September 1947 (no winter records in 1943).

Extremes.- Maximum discharge recorded during year, 694 second-feet May '8 (gate height, 

5.60 feet), from rating curve extended above 250 second-fee't; minimum daily discharge, 

0.1 second-foot Oct. 1, 3-16, 19-21, 24-27.

1942-47: Maximum discharge, that of May 8, 1947; minimum daily, 0.1 S3cond-foot on 

many days in September and October 1946.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Une large diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

0.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.2

.2

.1

.1

.1

.1

.2

.2

.4

.8

Nov.

1.2

7.8

blO

b!2

13

11

11

*11

11

10

10

10

10

10

10

11

11

11

10

8.5

9.0

9.5

10

10

10

11

10

10

9.6

3.2

-

Dec.

' 8.0

Jan.

* 7.5

Feb.

8.0

_

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March...... ................................

April ......................................

May........................................

June .......................................

July. ......................................

August. ....................................

September . .................................

Water year 1946-47 ......................

liar.

.

8.5

Apr.

18

-

Secondfoot-days

4.8

297*8

248.0

2,250.3

0*9 c

tOC «O

224.0

263.5

540

4,648

2,217

863.1

24.2

278.4

9,841.3

May

50

80

110

160

210

300

394

466

340

255

228

170

150

150

118

108

120

116

118

128

116

96

79

67

66

74

85

98

78

60

58

Maximum

0.8

13

60

466

194

68

2.2

28

466

June

48

45

58

46

41

36

44

82

90

55

56

53

SO

43

30

29

40

46

40

76

128

168

194

160

132

97

86

82

84

78

Minimum

0.

1.

_

_

50

29

.

^ 

.

July

60

47

50

53

52

43

50

68

67

61

58

60

48

Z3

23

25

15

13

9.9

6.9

6.9

5.8

4.9

3.1

1.8

1.6

1.3

1.3

1.3

1.5

.8

Aug.

1.5

2.2

1.1

1.1

1.0

.8

.8

.8

.8

1.0

.8

.7

.7

.7

.8

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.4

Mean

I 0.15

I 9.93

8-0

L 6,17

7.5

8.0

8.5

18

150

fX Q I O -3

3 27.8

1 .78

1 9.28

L 27.0

Sept.

0.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.4

.4

.4

7.0

16

15

28

27

27

18

15

15

14

15

14

13

13

12

12

12

Runoff in 

acre-feet

9.5

591

492

4,460

461

444

523

1,070

9,220

4,400

1,710

48

552

19,520

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 9 to May 6 (stage-discharge relation affected by ice during most 

of period); discharge computed on basis of unpublished records for statloti 7 miles downstream.
194 OREEN RIVER BASIN

Carter Creek at mouth, near Manila, Utah

Location.- Water-stage recorder, lat. 40°53'25", long. 109°35'20", in SE£ sec. 19, T. 2 

N., R. 21 E. (unsurveyed), 600 feet upstream from mouth and 10 miles southeast of 

Manila, Utah.

Drainage area.- 110 square miles.

Records available.- October 1946 to September 1947.

Extremes.- Maximum discharge recorded during year, 495 second-feet May 9 (gage height, 

3.62 reet); minimum not determined, occurred during period of no gage-height record.

Remarks.- Records good except those for periods of no gage-height record, which are fair.

Discharge, in second-feet, water year October 1946 to September 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.

> a25

40

55

64

54

45

Nov.

I a4G

/

a38

a37

1> a36

'

36

34

32

32

32

-

Dec.

30

32 

32

\ a27

Jan.

\ a23

Feb.

» a23

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

May. ......................................

July. ......................................

September ............... ..................

Water year 1946-47 .....................

Mar.

.

> a23

26

26

28

2F

32

32

Apr.

31

32 

35

32

28

28

28

27

30

28

27

27

28

49

75

75

75

82

75

93

106

117

106

100

97

96

96

93

97

100

Secondfcot-days

908

850

_

644

9 122

1,032

32,787

May

108

133 

164

203

234

274

327

407

454 404'

400

334

309

288

263

263

277

279

285

300

309

324

315

291

277

279

300

362

297

277

268

Maximum

32

_

446

46

454

June

260

252

265

265

247

241

241

274

291

257

271

26O

234

236

219

205

219

224

221

294

446

421

425

432

439

446

425

390

376

346

-

Minimum

32

_

.

205

27

-

Julv

324

237 

279

271

2b4

214

214

231

229

212

187

177

164

154

151

145

136

130

120

118

115

alio

a!05

alOl

a97

a93

a90

aS6

aS3

a79

aS7

Aug.

> a60

45

44

45

50

49

46

44

41

42

48

41

40

40

Mean

29 3

27.4

_

23

24

34.4

89.8

Sept.

39

37 

37

36

36

36

35

35

3S

38

35

34

32

31

31

30

46

43

45

38

34

32

32

32

30

30

28

28

27

27

-

Runoff in 

acre-feet

1,690

_

2,050

65,030

a No gage-height record; discharge computed on basis of 1 discharge measur 

Ulnta River stations.

ent and records for
GREEN RIVER BASIN 195

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., at 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 September 192" (monthly

discharge only), October 1933 to September 1947 In reports of Geological Survey. May

1904 to October 1906, March 1910 to September 1947 in reports of State Engineer. 

Average discharge.- 40 years, 480 second-feet. 

Extremes.- Maximum discharge during year, 2,620 second-feet May 9 (gage height, 4.81

1'eet); minimum daily, 57 second-feet Sept. 28.

1904-6. 1909-47: 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 excellent except those for Oct. 1 to Feb. 25, which are fair. Diversions above station for irrigation.

Rating tables, vater year 1946-47, except periods of ice effect 

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

(Shifting-control method used Oct. 1- 

16, Dec. 6-21, Jan. 11-13, 20-28)

Oct. 1 to July 9 July 10 co Sept. 3O

0.8 65 2.1 525

.9 85 2.5 780

1.1 138 3.0 1,140

1.5 255 4.0 1,940

1.7 335 4.8 2,610

0.9 45 1.7 295

1.0 65 1.9 400

1.1 90 2.3 645

1.5 210

Discharge, in second- feet, water year October 1946 to September 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.

69

83

144

144

127

169

175

186

186

198

201

195

210

222

219

222

235

250

300

290

210

190

*180

185

195

200

195

185

185

190

240

Nov.

280

265

225

205

190

195

200

195

192

190

175

185

200

210

212

200

180

190

195

205

195

185

185

205

180

150

175

170

170

160

-

Dec.

155

160

135

140

*145

121

124

108

92

105

100

118

118

110

81

100

83

75

85

92

90

95

120

108

112

128

150

135

110

112

105

Jan.

130

130

125

140

150

165

175

150

b!40

144

138

141

149

b!25

bllO

blOO

b!20

b!35

b!35

*138

135

141

141

141

138

135

135

138

b!30

b!20

110

Feb.

116

130

100

102

108

110

116

b94

b90

88

95

105

102

102

116

116

121

127

bllO

blOS

bllO

110

105

113

 121

118

113

105

_

_

-

Month

October. ...................................

November. ........................ .........

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March ......................................

April ......................................

M

a-n- ay. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 .... .................

Mar.

130

113

108

95

113

132

130

121

118

127

127

127

132

132

124

124

135

149

175

219

322

465

626

558

344

294

272

283

445

564

520

Apr.

1

1

1

1

Secondfoot-days

5,980

5,864

3,512

141,955

4,204

3,048

7,324

21,382

64,070

52,720

14,781

6,095

3,721

192,701

445

505

542

664

485

362

366

348

420

460

384

286

290

440

697

969

871

,120

892

927

240

480

400

948

752

710

864

850

794

871

-

May

990

1,340

1,730

2,OOO

2,240

2,360

2,390

2,470

2,580

2,520

2,570

2,330

1,970

1,920

1,920

1,960

2,040

2,150

2,190

2,110

2,130

2,280

2,320

2,080

1,960

2,080

2,160

2,180

1,920

1,600

1,580

Maximum

300

280

160

2,580

175

130

626

1,480

2,580

2,390

1,080

315

230

2,580

June

1,610

1,820

1,920

2,060

1,960

1,860

2,090

2,240

2,240

1,980

1,800

1,830

1,550

1,520

1,500

1,650

1,750

1,690

1,720

1,750

2,070

2,390

1,870

1,550

1,470

1,520

1,480

1,380

1,280

1,170

-

Minimum

69

150

75

48

loo

88

95

286

990

1,170

156

114

57

57

July Aug.

1,080 174

997 3

927 ]

878 ]

86

71

62

857 186

731 226

671 2

658 2

619 I

34

26

42

619 254

568 315

478 2

406 2

330 2

86

68

64

305 254

378 230

484 2

472 2

394 :

18

07

95

300 177

264 168

264 1

305 I

367 1

68

71

71

305 162

242 144

204 :

189 :

174 2

159 I

35

32

29

26

156 114

Mean

193

195

113

389

136

109

236

713

2,067

1,757

477

197

124

528

Sept.

114

108

96

96

93

99

111

105

96

132

230

226

218

186

165

153

141

138

138

135

129

129

129

120

114

78

59

57

61

65

-

Runoff in 

acre feet

11,860

11,630

6,970

281,600

8,340

6,050

14,530

42,410

127,100

104,600

29,320

12,090

7,380

382,300

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- Ho gage-height record Oct. 17 to Dec. 5, Dec. 22 to Jan. 8 (stage-discharge relation 

affected by Ice during part of period); discharge computed on basis of 2 discharge n^asurements, 

veather records, and records for stations on nearby streams.
196 _ GREEN RIVER BASIN

Yampa River near Maybe11, Colo.

Location.- Water-stage recorder, lat. 40°30 I , long. 108°02', in sec. 2, T. 6 N., R. 95

W., 'J 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. 

Kecords avallable.- April 1904 to October 1905, June 1910 to November 1912, April 1916

to September iy47.

Average discharge.- 31 years.(1916-47), 1,617 second-feet. 

Extremes.- Maximum discharge during year, 12,400 second-feet May 10 (gage height, 8.72

feet); minimum daily, 132 second-feet Oct. 1.

1904-5, 1910-12, 1916-47: 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 Nov. 12 to May 7, which are fair. Diversions

above station for irrigation.

Rating table, water year 1946-47, except period of ice effect

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

(Shifting-control method used Mar. 23 to May 24)

1.4 128 2.5 650

1.6 172 3.0 1,050

1.8 235 3.7 1,770

2.0 340 4.4 2,700

5.4 4,380

6.7 7,060

8.7 12,200

Discharge, in second-feet, water year October 1946 to September 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.

.132

143

152

189

296

324

324

318

307

296

296

302

307

302

302

312

324

382

436

454

418

382

370

382

400

400

382

376

382

430

496

Nov.

580

520

442

424

370

382

418

388

406

370

430

412

415

425

430

400

385

390

400

415

400

400

400

425

375

360

425

415

400

390

-

Dec.

385

390

360

365

400

385

*424

394

388

318

255

285

388

382

358

329

218

139

250

329

218

218

302

334

370

334

334

312

280

250

210

Jan.

220

230

245

240

245

260

265

260

250

250

255

250

230

200

190

160

180

210

230

230

235

*213

215

220

225

215

210

215

220

200

215

Feb.

195

200

210

205

205

212

220

220

230

240

260

280

270

250

250

270

300

330

315

300

300

305

305

310

320

330

350

360

_

_

-

Month

October. .................. .......

November. ..................................

December. ..................................

Calendar year 1946 ........... ......

January ............................. .... .

February ................ ... . . .... .

March.. ....................................

April. .................. .............

May. ......................... .............

June .......................................

July. .................................. ...

August .....................................

September. ..............................

Water year 1946-47 .... .................

Mar.

360

370

380

375

370

380

400

415

420

450

480

540

550

560

550

470

520

580

720

1,020

1,500

2,500

3,930

3,050

2,100

1,880

1,730

2,040

 2,880

3,420

3,270

Apr.

3

2

2

2

2

1

1

1

1

1

1

1

1

1

1

2

2

2

3

3

3

4

5

5

3

3

3

3

3

3

Secondfoot-days

10,316

12,392

9,904

437,779

6,983

7,542

38,210

82,800

248,220

159,820

59 809

16^330

8,352

660,678

,020

,380

,780

,910

,680

,890

,420

,430

,340

,770

,820

,490

,160

,100

,620

,760

,910

,720

,750

,130

,270

,520

,200

,080

,710

,030

,190

,910

,440

,370

-

May

4,150

5,340

6,990

8,980

10,100

10,600

11,400

11,800

12,000

12,100

11,800

11,400

10,400

8,630

8,030

7,680

7,350

7,350

7,370

7,040

6,530

6,490

6,850

6,720

5,700

5,400

5,820

6,160

6,780

5,620

5,640

Maximum

496

580

424

6,740

265

360

3,930

5,200

12,100

7,540

3,860

768

532

12,100

June

5,380

5,240

5,300

5,640

6,250

6,310

5,860

6,090

6,810

7,540

6,340

5,360

5,080

4,180

3,930

3,890

4,400

4,940

4,860

5,220

5,880

7,540

7,470

4,980

4,200

4,000

4,340

4,430

4,180

4,180

-

Minimum

132

360

139

126

160

195

360

1,100

4,150

3,890

629

302

194

132

July

3,860

3,460

3,390

3,420

3,340

3,290

2,940

2,700

2,730

2,580

2,490

2,200

1,960

1,730

1,570

1,480

1,550

1,650

1,640

1,400

1,230

1,130

1,080

1,100

1,150

1,010

880

792

736

692

629

Aug.

608

E

(

;

>94

>08

>94

574

556

£

f

£

43

78

15

601

720

'

60

68

06

657

636

i

i

>74

>32

08

472

448

4

;

2

12

88

82

376

346

;

2

2

;

29

24

07

12

302

Mean

333

413

319

1,199

225

269

1 233

2, 760

8,007

5,327

1,929

527

278

1,810

Sept.

280

265

240

228

214

210

207

214

228

240

250

394

532

490

460

400

340

307

296

296

285

265

245

232

228

214

207

197

194

194

-

Runoff in 

acre-feet

20,460

24,580

19 , 640

868,300

13,850

14,960

75,790

164,200

492,300

317,000

118,600

32,390

16,570

1,310,000

Winter discharge measurement made on this day. 

Note.- No gage-height record Nov. 12 to Dec. 6; discharge computed on basis of weather records 

and records for stations on nearby streams. Stage-discharge relation affected ty ice Jan. 29 to 

Mar. 22.
GREEN RIVER BASIN 197 

Elk River at Clark, Colo.

Location.- Water-stage recorder, lat. 40°43', long. 106°55', in sec. 28, T. 9 N., R. 85 

W., at Clark, 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 1947 

in reports of Geological Survey. May 1910 to September 1922, April 1930 to September 

1947 in reports of State engineer.

Average discharge.- 29 years, 361 second-feet.

Extremes.- Maximum discharge during year, 3,170 second-feet May 4 (gage height, 4.98 

feet), from rating curve extended above 2,200 second-feet; minimum daily, 54 secondfeet Oct. 1.

1910-22, 1930-47: Maximum daily discharge, 4,470 second-feet June 6, 9, 1912; 

minimum discharge observed, 22 second-feet Apr. 7, 1935 (gage height, 0.63 foot).

Remarks.- Records fair. Practically no diversion or regulation.

Discharge, in second-feet, water year October 1946 to September 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.

54

100

1Z6

96

96

83

86

78

77

74

66

69

74

68

75

75

86

85

75

69

72

75

78

74

74

71

69

75

126

119

102

Nov.

86

85

-75

86

78

71

82

82

82

71

77

68

80

83

80

80

72

92

88

92

92

108

92

90

100

106

98

83

83

82

-

Dec.

78

^

71

85 *78

72

71

72

70

68

70

73

74

72

72

69

68

69

70

69

68

68

70

71

71

70

68

66

62

60

58

Jan.

61

60

58

59

57

58

60

60

61

62

63

62

61

58

56

55

56

59

6Z

 65

64

64

65

66

68

68

66

65

64

6Z

64

Feb.

66

66

66

68

70

70

70

70

72

74

73

71

71

73

74

76

78

73

67

65

70

74

76

70

66

 64

62

59

_

-

Month

October ....................................

November ......................... .........

Decembe r ........................... ... . .

Calendar year 1946 ...................

January. ................................. .

February. .... ...................... ......

March. ............................. ...

April. ........ ................... ....

May............. ...................... . .

June ............ .................. .......

July. ........ . . . ................ .......

August ... ...... ......... ..... . ...

September. ...... ....... ... ...... ....

Hater year 1946-47 ... . . .......

Mar.

64

66

67

68

71

74

73

73

74

75

75

76

78

80

79

78

76

76

76

77

80

85

88

85

83

78

80

78

88

88

86

Apr.

86

92

92

92

90

90

90

83

90

88

83

82

alOO

 117

134

143

152

19Z

190

216

304

420

470

394

360

394

450

376

368

515

-

Secondfoot-days

2,547

2,544

2,181

108,020

1,909

1,954

Z,395

6,353

46,916

38,460

19,264

4,558

2,564

131,645

May

858

1,440

1,740

2,070

Z,090

2,080

2,200

2,300

2,290

2,170

2,170

1,590

1,530

1,430

1,370

1,310

1,370

1,330

1,220

1,130

1,Z30

1,350

1,280

1,040

1,070

1,240

1,330

1,630

1,130

948

980

Maximum

126

108

85

1,810

68

78

88

515

2,300

1,980

1,160

233

170

2,300

June

940

1,000

1,290

1,580

1,Z90

1,270

1,540

1,850

1,980

1,420

1,220

1,200

al, 150

al,080

al,040

al,120

al,180

al,150

al,160

al,210

al,400

al,600

al,500

al,320

al,200

al,250

al,200

al,140

al,100

al,080

Minimum

54

68

58

53

^5

59

64

82

858

940

243

80

66

54

July

al,060

1,050

1,070

1,080

1,160

1,060

988

972

902

888

768

659

574

530

520

520

558

558

470

420

394

368

372

376

336

308

288

268

260

Z50

Z43

Aug.

Z33

226

210

195

213

195

182

185

173

188

213

173

168

173

15Z

141

134

126

117

108

108

117

112

102

94

88

85

102

86

85

80

Mean

8?. 2

8*. 8

70.4

29<?

61.6

69.8

77.3

212

1,513

1.2SZ

621

147

85.5

361

Sept.

77

71

71

71

69

71

71

71

62

170

157

134

119

94

83

78

86

96

82

77

74

74

74

7Z

75

74

71

66

69

85

Runoff in 

acre-feet

5,050

5,050

4,330

214,300

3,790

3,880

4,750

1Z.600

93,060

76,280

38,210

9,040

5,090

261,100

» Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Yampa River at Steamboat 

Springs.

Note.- Stage-discharge relation affected by ice Dec. 9 to Jan. 8, Mar. 5-19. No gage-height record 

Jan. 9 to Mar. 4 (stage-discharge relation affected by ice during most of period); discharge computed 

on basis of Z discharge measurements and weather records.
198 GREEN RIVER BASIN

Fortification Creek at Craig, Colo.

Location.- Water-stage recorder, lat. 40°30'50", long. 107°3S'30", in SE-q- sec. 31, T. 7 

H., K. 90 W., at Craig, 1 mile upstream from mouth. Datum of gage is 6,178.24 feet 

above mean sea level, datum of 1929.

Drainage area.- 258 square miles.

Records available - June 1905 to July 1906, October 1909 to September 1918 (monthly discharge only 1913-18), September 1943 to September 1947 (discontinued).

Average discharge.- 13 years (1909-18, 1943-47), 56.9 second-feet.

Extremes.- Maximum discharge during year, 841 second-feet Mar. 23 (gage height, 10.44 

feet); no flow Oct. 1-5, Aug. 2-7, 9, 11-12, Aug. 17 to Sept. 30.

1905-6, 1909-18, 1943-47: Maximum discharge determined, that of Mar. 23, 1947, but 

may have been higher on Mar. 27, 1914; maximum daily discharge, 750 second-feet Mar. 

27, 1914; no flow at times nearly every year.

Remarks.- Records good above 10 second-feet and fair below except those for periods of ice 

ice effect or no gage-height record, which are fair. Diversions above station for 

Irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

0

0

0

0

0

a. 6

al.o

al.2

al.2

al.2

al.2

al.l

al.l

al.l

al.2

al.4

a3.6

a3.5

2.3

1.8

1.1

.8

.4

.6

1.3

1.3

1.1

1.1

2.4

8.7

6.6

Nov.

5.4

4.5

5.3

3.0

Z.7

2.3

3.5

2.8

3.0

4.5

4.4

4.1

4.0

4.4

*4.7

4.7

4.4

4.2

4.1

4.5

4.6

4.4

4.8

5.5

6.0

5.2

4.7

5.0

5.4

5.0

-

Dec.

, 4.0

(*)

Jan.

. *3.2

Feb.

(*)

> 6.0

-

-

-

Month

October. .............................. ...

November. ........................ ... ....

December ...................... ...... ....

Calendar year 1946 ................. ...

January .................................. .

February ....................... ..... .....

March. ..................... ...............

April ......................... ............

May.......................................

June ............................ ..........

July. ............. ................ .......

August ............................ ........

September. ........... . .......... .......

Water year 1946-47 ...... . . ............

Mar.

7.0

7,0

7.0

7.2

7.4

7.8

8.2

7.4

7.8

*8.6

11

60

*84

140

230

303

394

642

688

688

*679

691

625

168

109

213

276

359

347

261

202

Apr.

108

120

116

99

56

38

49

42

127

130

70-

43

37

70

129

136

116

175

164

139

224

273

302

192

145

150

222

182

153

200

-

Secondfoot-days

48.9

131.1

124.0

7,015.4

99.2

168.0

7,245.4

4,007

9 113

2^061

128.2

3.0

0

23,128.8

May

275

365

476

510

555

536

527

506

504

419

578

542

317

294

262

235

243

232

£04

176

161

176

178

148

121

117

101

112

104

77

62

Maximum

8.7

6.0

268

_

691

302

578

140

19

1.3

0

691

June

58

54

61

112

140

97

81

90

113

124

92

101

87

67

52

45

49

44

46

. 55

95

112

67

48

38

31

29

26

24

23

-

Minimum

0

2.3

o

7.0

37

62

23

.1

0

0

0

July

19

15

12

11

8.8

7.4

6.0

4.4

4.8

5.2

2.4

2.0

2.6

2.3

2.1

2.9

3.2

2.5

1.5

1.8

1.5

1.6

1.6

1.6

1.4

1.1

.9

.6

.5

.4

.1

Aug.

0.1

0

0

0

0

0

0

.3

0

.5

0

0

.3

1.3

.4

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

J'«an

1.58

4.37

4.0

19 2

3.E

6.0

P34

134

294

68.7

4.14

.10

0

63.4

Sept.

Runoff in 

acre-feet

97

260

246

13 920

197

333

14,370

7,950

18,080

4,090

254

6.0

0

45,880

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for stations on nearby streams.

15": flo gage-height record Nov. 25 to Dec. 5, Dec. 17 to Feb. 13, Feb. 24 to Mar. 10 (stage 

relation affected by Ice during entire period); discharge computed on basis of 3 discharge 

merits and weather records.
GREEN RIVER BASIN 199

East Fork of Williams Pork near Willow Creek, Colo.

Location.- Water-stage recorder, lat. 40°13', long. 107°16', in NW£ see. 22, T. 3 N., 

RT~S8~W., 0.6 mile downstream from Poose Creek and 7 miles southeast of Willow Creek.

Drainage area.- 96 square miles.

Records available.- September 1943 to September 1947 (discontinued).

Extremes - Maximum discharge during year, 1,090 second-feet May 9, from rating curve 

extended above 360 second-feet; maximum gage height, 2.93 feet May 4; minimum discharge not determined, occurred during period of no gage-height record.

1943-47: Maximum discharge, that of May 9, 1947; maximum gage height, that of 

May 4, 1947; minimum dally discharge, 18 second-feet Feb. 11, 1944, Feb. 27, 1945, 

Jan. 13, 1946, but may have been less during period of no gage-height record in 1947,

Remarks.- Records fair. Practically no diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

26 

29 

45 

45 

43

34 

34 

32 

32 

31

29

31 

31 

32 

31

37 

46 

43 

37 

 39

37 

35 

36 

35 

32

32 

32 

34 

48 

44 

40

Nov.

38 

40 

42 

37 

33

33 

37 

32 

30 

26

28 

30 

31 

29 

24

23 

25 

27 

25

21

23 

21 

20 

22 

23

25 

22

21 

21 

21

Dec.

> 21

Jan.

19

Feb.

(*) 

22

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ..................................

lendar year 1945 

ary

h. ..................... ............

1. ....................... ..........

St. ....................................

ember. .................................

ter year 1946-47 ......................

* Winter d 

Note.- Sta

No gage-heig 

period) ; dis 

record May 6 

South Fork Wl

Mar.

(*) 

24

Apr.

28 

29 

30 

30 

29

29 

25 

29 

26 

26

25 

31 

32 

44 

63

53 

66 

72 

64 

80

109 

115 

95 

79 

71

83 

85 

82 

99 

137

Secondfoot-days

1,112 

830 

651

26,285

589 

616 

744 

1,766 

17,425 

14,122 

6,851 

2,108 

1,410

48,224

May

210 

318 

437 

536 

590

670 

730 

800 

860 

840

800 

700 

640 

480 

520

490 

485 

515 

490 

485

530 

608 

596 

505 

545

608 

566 

590 

428 

420 

433

Maximum

48 

42

460

137 

860 

728 

374 

105 

76

860

June

433 

475 

525 

566 

495

495 

608 

722 

728 

530

490 

392 

330 

338 

361

420 

424 

451 

485 

500

535 

530 

397 

384 

388

410 

433 

442 

438 

397

Minimum

26

20

18

25 

- 210 

330 

93 

48 

37

.

July

374 

366 

370 

366 

356

330 

316 

325 

334 

302

264 

240 

220 

204 

204 -

204 

193 

186 

168 

158

155 

158 

162 

14?

127

116 

110 

11C 

10C 

9f 

93

Aug.

88 

86 

86 

95 

93

83

81 

81 

81 

105

81 

74 

74 

71

67

64 

62 

59 

57 

55

55 

55 

53 

53 

53

51 

51 

49 

49 

48 

48

Sept.

48 

48 

48 

46 

46

46 

64 

57

55 

76

71 

58 

52 

47 

44

42 

45 

45 

43

41

41 

41 

41 

40 

38

38 

38 

37 

37 

37

 ,,_ Runoff in *' ** acre-feet

35. 9 2,210 

27.7 1,650 

21 1,290

72.0 52,140

19 1,170 

22 1,220 

24 1,480 

58.9 3,500 

562 34,560 

471 28,010 

221 13,590 

68.0 4,180 

47.0 2,800

132 95,660

ischarge measurement made on this day. 

ge-discharge relation affected by ice Oct. 31, Nov. 1-4, 6-22, 24-30, lee. 1-11, Apr. 1-3 

it record Dee. 12 to Mar. 31 (stage-discharge relation affected by Ice during most of 

charge computed on basis of 2 discharge measurements and weather records. No gage-height 

-16, Sept. 12-30} discharge computed on basis of 1 discharge measurement and records for 

tilte River near Buford.

852060 O - 49 - 14
200 GREEN RIVER BASIN

Little Snake River near Slater, Colo.

Location.- Water-stage recorder, lat. 41°00', long. 107°10', in SW£ sec. 15, T. 12 N., 

RT~87~~W., at Focus Ranch, a quarter of a mile downstream from Willow Creek and 11 miles 

east of Slater. Datum of gage is 6,829.57 feet above mean sea level, unadjusted.

Drainage area.- 285 square miles.

Records available.- October 1942 to September 1947 (discontinued).

Extremes.- Maximum discharge during year, 2,450 second-feet May 9 (gage height, 7.64 feet), 

from rating curve extended above 1,400 second-feet; minimum daily, 20 second-feet 

Sept. 3-5, 30.

1942-47: Maximum discharge, 3,140 second-feet June 1, 1943 (gage height, 8.22 feet), 

from rating curve extended above 1,400 second-feet; minimum daily, 8.6 second-feet 

Sept. 10, 1944.

Remarks.- Records excellent except those for Nov. 11 to Mar. 22, July 10 tc Sept. -30, which 

 are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22

29

58

41

46

43

41

39

37

37

34

34

37

36

41

44

»54

54

46

41

44

45

47

44

46

46

48

51

99

106

64

Nov.

42

47

48

50

44

40

42

42

41

40

30

33

34

34

35

22

*25

22

24

28

27

29

29

28

27

30

29

29

30

29

-

Dec.

28

29

28

28

30

30

29

29

28

28

29

30

32

33

34

33

32

31

32

33

32

32

33

34

33

34

35

35

33

30

29

Jan.

31

29

28

30

2S

28

29

30

31

32

33

32

30

»29

28

30

32

33

33

34

34

35

36

37

37

36

35

34

31

29

30

Feb.

31

32

31

30

32

31

30

29

30

35

31

29

 31

34

35

38

37

36

33

32

34

35

36

35

35

33

32

30

_

-

Month

December. ..................................

Calendar year 1946 ......................

March....... ...............................

April ................................ .....

Hay

September. .................................

Water year 1946-47 ......................

Mar.

26

29

28

29

30

31

31

30

30

32

»33

34

36

39

43

54

70

94

160

320

280

260

220

144

102

75

77

97

106

106

95

Apr.

91

122

134

108

77

68

66

 57

70

67

56

50

60

119

180

183

191

222

201

267

367

445

416

307

310

363

420

359

343

506

-

Secondfoot days

966

75,739

779

89,944

May

726

1.1CO

1,430

1,590

1,760

1,810

1,840

1,910

2,020

1,940

1,310

1,430

1,410

1,390

1,340

1,310

1,330

1,310

1,240

1,180

1,210

1,260

1,260

1,140

1,090

1,170

1,250

1,430

1,160

1,010

958

Maximum

35

1,310

56

2,020

June

995

950

1,100

1,400

1,210

1,120

1,160

1,260

1,360

1,180

1,010

942

785

726

705

762

815

792

815

792

1,060

740

586

518

494

494

470

416

406

364

-

Minimum

28

18

20

20

July

347

335

321

31C

285

262

248

228

225

231

191

167

149

136

126

134

180

139

114

104

97

106

139

117

89

75

68

66

66

60

60

Aug.

60

53

50

47

58

57

57

60

53

82

82

58

64

108

53

42

41

37

34

31

30

31

31

29

28

26

25

26

26

26

25

Mean

31.2

218

26.0

216

Sept.

23

21

20

20

20

23

24

22

22

54

56

48

34

28

a25

a24

a23

a27

a26

a25

a23

a21

a21

a21

a21

a22

a22

a22

a21

a20

-

Runoff in 

acre-feet

1,920

150,200 .

1,550

178,400

* Winter discharge measurement made on this day.

a No sage-height record; discharge computed on basis of records for station near D'.xon. 

Note.- Stage-discharge relation affected by ice Nov. 11 to Mar. 22 (no gage-height record Jan. 

to Feb. 12; discharge computed on basis of 1 discharge measurement and weather records).
GREEN RIVER BASIN 201

Little Snake River near Dixon, Wyo,

Location.- Water-stage recorder, lat. 41°02', long. 107°32', in sec. 6, T. 12 N., R. 90 

W., 600 feet upstream from Willow Creek and 1 mile west of Dixon. Datm of gage is 

6,332.81 feet above mean sea level, unadjusted.

Drainage area.- 988 square miles.

Records available.- May 1910 to September 1923 (no winter records), March 1938 to September 1947.

Extremes.- Maximum discharge during year, 4,400 second-feet May 9 (gage h?ight, 5.70 

feet); minimum daily, 8.5 second-feet Oct. 1.

1910-23, 1938-47: Maximum discharge observed, 8,960 second-feet May 23, 1920 

(gage height, 8.3 feet, datum then in uae), from rating curve extended above 6,000 

second-feet; minimum daily, 0.6 second-foot Aug. 24-27, 1939.

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 1946 to September 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.

8.5

10

18

33

29

42

55

58

52

48

47

42

50

54

54

60

77

92

87

75

64

64

67

72

73

85

84

85

100

209

148

Nov.

107

98

92

92

109

92

85

109

96

84

80

87

100

100

109

85

*89

82

75

94

84

90

86

84

82

90

94

90

98

90

-

Dec.

80

84

82

78

82

78

80

78

74

72

75

78

76

78

80

76

70

70

72

74

70

72

74

78

74

78

74

68

64

62

60

Jan.

64

60

58

61

57

59

62

62

62

64

70

66

64

*62

58

56

58

60

63

66

66

66

66

70

72

74

70

68

65

63

66

Feb.

71

74

71

76

78

76

76

76

82

90

86

84

*88

92

98

102

104

98

90

86

90

96

100

94

94

86

84

74

_

_

-

Month

October. ............................ ......

November . ........................ .........

December. ..................................

Calendar year 1946 ...................

January. ...................................

February ...................................

March. .....................................

April ...................................

May..................................... ..

June ................. .....................

July. ............. .................... ...

August ........... .........................

September. ..............................

Water year 1946-47 ......................

Mar.

60

70

68

74

74

72

76

82

84

86

92

98

*98

102

115

145

250

430

800

1,590

1,560

1,360

1,240

643

332

374

356

531

890

1,300

917

Apr.

690

935

971

762

393

275

285

201

280

»310

261

185

201

464

1,210

899

746

1,180

850

1,080

1,880

2,080

1,820

1,110

926

1,020

1,390

1,220

1,040

1,560

-

Second 

foot-days

2,042.5

2,753

2,311

142,602.8

1,978

2,416

13,969

26,224

84,320

48,859

6,451

1,069

1,057

193,449.5

May

2,190

2,890

3,130

3,300

3,690

3,750

3,820

3,920

4,020

3,850

3,710

3,120

2,740

2, -830

2,640

2,570

2,530

2,490

2,360

2,180

2,140.

2,230

2,230

2,000

1,830

1,920

2,090

2,410

2,230

1,830

1,680

Maximum

209

109

84

2,760

74

104

1,590

2,080

4,020

2,470

696

125

112

4,020

June

1,760

1,680

1,790

2,470

2,380

2,040

1,990

2,170

2,380

2,4'40

2,040

1,890

1,660

1,470

1,360

1,370

1,510

1,480

1,510

1,520

1,890

1,820

1,410

1,200

1,090

1,020

988

907

840

784

-

Minimum

8..

75

60

4.

56

71

60

185

1,680

784

22

16

18

8..

July

696

632

584

553

539

469

3F9 3J-7

320

280

2EO

173

1?5

1C4

80

72

$7

1?5 ' ea

64

£2

40

43

70

eo

42

34.

30

26

25

?2

Aug.

20

19

18

16

16

19

18

19

18

25

125

78

50

97

88

52

40

35

34

26

23

25

30

27

24

22

21

21

20

22

21

Mean

5 65.9

91.8

74.5

I 391

63.8

86.3

451

874

2,720

1,629

218

34.5

35.2

5 530

Sept.

21

19

19

18

18

18

19

22

26

35

112

92

75

52

40

36

34

33

42

38

35

32

26

26

26

26

29

30

30

27

-

Runoff in 

acre-feet

4,050

5,460

4,580

282,900

3,920

4,790

27,710

52,010

167,200

96,910

12,800

2,120

2,100

383,600

* Winter discharge raeaaureraent made on this day.

Note.- Stage-discharge relation affected by ice Nov. 22 to Mar. 19.
202 GREEN RIVER BASIN 

Little Snake River near Lily, Colo.

Location.- Water-stage recorder, lat. 40°32", long. 108°25', in sec. 20, T. 7 N., R. 98 

I., 6 miles north of Lily and 10 miles upstream from mouth.

Drainage area.- 3,730 square miles.

Records available.- June to August 1904 and October 1921 to September 1947.

Average discharge.- 26 years (1921-47), 605 second-feet.

Extremes.- Maximum discharge during year, 5,910 second-feet June 22 (gage height, 5.92 

feet); no flow Oct. 1.

1904, 1921-47: Maximum discharge, 14,200 second-feet May 27, 1926 (gage height, 

10.5 feet), from rating curve extended above 3,600 second-feet; no flov at times in 

1924, 1930, 1931, 1934-36, 1939-40, 1942, 1944, 1946.

Remarks.- Records good above 150 second-feet and fair below, except those for period of 

no gage-height record, which are poor. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 19<-7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

Oct.

0

3.0

Zl

17

123

130

135

140

150

140

130

1Z5

1ZO

1Z5

130

150

170

ZOO

Z40

Z30

*ZZO

190

165

170

190

ZOO

Z10

ZOO

zzo

Z40

Z80

Nov.

Z90

Z55

Z10

190

195

Z10

190

180

Z05

ZOO

195

*190

175

190

200

210

ZZO

180

160

146

150

160

140

135

130

1Z5

1Z5

135

140

140

-

Dec.

135

100

105

100

97

98

98

95

94

90

88

90

94

96

100

105

95

85

82

85

88

84

86

88

84

88

90

84

75

68

65

Jan.

64

63

63

6Z

60

60

6Z

64

66

70

72

70

67

65

6Z

60

59

64

67

68

70

*70

71

73

76

78

75

72

70

70

7Z

Feb.

74

76

76

78

8Z

80

80

86

90

94

98

9Z

94

100

105

109

110

11Z

103

97

94

100

108

112

108

103

96

91

_

»

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

Mnv

July. ...................... ...............

September . .................................

Water year 1946-47 ......................

Mar.

86

82

80

83

86

90

94

98

104

108

112

115

115

1ZO

150

195

250

3ZO

440

800

1,040

*1,500

Z,140

2,200

1,320

910

748

710

617

740

1,110

Apr.

1,280

994

935

1,060

1,020

884

650

532

521

477

455

521

488

455

499

610

1,050

901

884

1,140

918

1,240

1,680

1,790

1,770

1,290

1,200

1,200

1,280

1,270

Secondfoot-days

4,764.0

2,822

166,279.2

2,085

2,648

16,563

28,994

97,660

57,578

10,778

2,596

3,594.0

235,453.0

May

1,230

1,680

2,650

3,800

4,460

4,960

5,020

4,920

4,920

4,980

4,880

4,670

3,910

3,130

3,090

2,880

2,760

Z.7ZO

2.7ZO

2,570

2,360

2.Z40

2.Z70

2,280

2,160

1,950

1,960

2,160

3,480

2,760

3,090

Maximum

280

290

125

3,130

78

112

2,200

1,790

5,020

4,730

842

419

679

5,020

June

1,770

1,790

1,740

1,830

2,590

Z,750

Z,Z10

2,130

2,380

2,730

2,880

2,210

2,040

1,830

1,580

1.4ZO

1,370

1,440

1,880

1,530

1,770

4,730

Z,490

1,750

1,430

1,250

1,140

1,040

994

884

Minimum

o

1Z5

65

0

59

74

80

455

1,230

884

68

10

4.6

0

July

842

783

101

650

62 <

59 >

572

5Z1

510

510

62.'

430

36*

296

238

214

Z01

186

207

Z04

19Z

159

142

1Z8

115

180

183

139

107

86

68

Aug.

54

40

Z8

Z7

Z3

17

12

11

10

14

45

24

95

ZZ5

188

169

138

135

112

79

158

419

148

102

72

56

48

46

38

34

29

Mean

154

179

91.0

456

67.3

94.6

534

966

3,150

1,919

348

83.7

1ZO

645

Sept.

26

18

12

10

7.2

5.6

4.8

4.8

5.6

20

100

679

567

348

240

200

148

138

130

200

220

124

86

68

54

46

38

32

31

Runoff in 

acre-feet

9,450

10,650

5,600

329,800

4,140

5,250

32,850

57,510

193,700

114,200

21,380

5,150

7,130

467,000

* Winter discharge measurement made on this day.

Note.- No gage-height record Oct. 6 to Mar. 22 (stage-discharge relation affected by Ice during 

most of period)) discharge computed on basis of 4 discharge measurements, weather records, and records for station near Dixon, Wyo.
GREEN RIVER BASIN 203

Battle Creek near Slater, Colo.

Location.- Water-stage recorder, lat. 41°00', long. 107°15', in NW£ sec. 14, T. 12 N., 

R. 88 W. (Colorado), at 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 1947.

Extremes.- Maximum discharge during year, 876 second-feet May 8 (gage height, 3.34 feet), 

from rating curve extended above 260 second-feet; minimum daily, 5.8 second-feet Oct. 

1.

1942-47: Maximum discharge, 967 second-feet June 1, 1943 (gage height, 5.64 feet), 

from rating curve extended above 600 second-feet; minimum daily, 4.0 second-feet Nov. 

22, 1942.

Remarks.- Records good above 30 second-feet and fair below. Diversions above station for 

irrigation.

Discharge, in second-feet, water year October 1946 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5.8

8.2

13

7.4

9.0

9.6

9.6

9.0

10

9.6

8.2

9.6

11

8.6

9.6

12

16

14

10

8.2

7.0

8.6

9.6

7.8

9.0

8.2

8.6

9.6

17

17

14

Nov.

10

11

7.4

11

11

9.6

9.6

12

9.6

10

8.6

8.8 10 '

10

10

7.0

*9.0

11

13

12

10

11

10

9.5

10

9.8

9.6

9.8

10

10

-

Dec.

9.4

9.2

9.0

9.0

9.6

10

9.6

9.2

8.8

8.6

8.6

8.8

9.0

9.2

9.4

9.0

8.4

8.0

8.2

8.4

8.0

8.4

8.6

8.8

9.0

9.4

9.6

9.8

9.2

8.6

8.4

Jan.

8.8

8.8

8.6

8.4

8.4

8.6

8.8

9.0

9.2

9.4

9.6

9.6

9.4

*9.2

8.4

8.0

8.2

8.4

8.6

8.8

9.0

9.2

9.6

9.8

10

9.8

9.6

9.4

9.0

8.8

8.6

Feb.

9.0

9.6

9.6

9.6

9.6

9.6

9.2

8.8

9.2

9.6

9.2

8.8

*8.4

8.6

9.0

9.0

9.0

8.6

8.4

8.4

8.6

8.8

9.0

8.8

8.6

8.4

8.0

7.6

_

.

-

Month

October. ...................................

November. ..................................

December. ............. ....................

Calendar year 1946 .....................

January. ...................................

February ............................. .....

March. .....................................

April. .....................................

May........................................

June .......................................

July. ......................................

August. ....................................

September ..................................

Water year 1946-47 ......................

Mar.

7.2

7.6

7.8

8.2

8.0

8.2

8.8

9.2

9.2

9.6

10

*11

11

12

13

14

17

41

126

195

136

122

98

63

45

42

36

47

47

47

37

Apr.

40

40

40

35

32

35

27

25

27

25

22

20

24

42

59

58

66

72

66

89

127

144

117

92

94

106

124

106

107

146

-

Secondfoot-days

314.8

300.3

277.2

25,919.3

279.0

249.0

1,253.8

2,007

14,982

10,157

2,135

528.4

292.0

32,775.5

May

214

366

495

565

518

580

656

668

646

605

555

437

404

429

490

515

540

535

475

425

461

500

470

405

401

452

475

560

430

361

349

Maximum

17

13

10

605

10

9.6

195

146

668

640

156

71

28

668

June

349

353

438

545

461

443

490

590

640

480

393

328

265

238

238

277

310

324

353

361

421

286

232

208

196

196

198

186

186

172

Minimum

5.

7.

8.

-

8.

7.

7.

20

214

172

17

8.

6.

5.

July

15F

15C

144

146

13E

12C iir

10£

9f

8T

74

6T

5£

5C

4e

5T

6?

5C

4f

4?

42

41

5C

37

31

2T2e

2C

IS

IT

IT

Aug.

18

17

16

16

17

14

13

15

13

51

71

25

23

23

17

16

15

14

13

11

12

13

11

10

9.9

9.0

8.5

9.6

8.8

9.6

9.0

Mew

3 10.2

3 10.0

3 8.94

71.0

3 9.00

3 8.89

2 40.4

66.9

483

339

68.9

5 17.0

3 9.73

3 89.8

Sept.

7.8

7.4

7.0

7.0

6.8

7.4

9.6

7.8

8.5

28

26

21

15

11

9.9

8.8

8.2

8.0

7.4

7.4

7.4

7.4

7.2

7.0

7.2

7.0

6.8

6.8

7.0

8.2

Runoff in 

acre-feet

624

596

550

51,420

553

494

2,490

3,980

29,720

20,150

4,230

1,050

579

65,020

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 11-14, Nov. 21 to Mar. 15 (no gage-height 

record Jan. 22 to Mar. 11; discharge computed on basis of 1 discharge measurement and weather records) .
204 GREEN RIVER BASIN

Slater Fork near Slater, Colo.

Location.- Water-stage recorder, lab. 40°59', long. 107°23', In SW£ sec. 21, T. 12 N., R. 

89 W., about 1 mile upstream from mouth and ij miles south of Slater.

Drainage area.- 161 square miles.

Records available.- May 1910 to May 1912, October 1933 to September 1947 in reports of 

Geological Survey. May 1910 to May 1912, June 1931 to September 1947 in reports of 

State engineer.

Average discharge.- 16 years (1931-47), 71.0 second-feet.

Extremes.- Maximum discharge during year, 1,150 second-feet May 5 (gage height, 8.20 

feet); minimum dally, 6.0 second-feet Oct. 1.

1910-12, 1931-47: Maximum dally discharge, 1,700 second-feet May 19, 1912; no 

flow Aug. 2-10, 1934, Aug. 18, 25-27, 1936.

Remarks.- Records good above 50 second-feet and fair below. Diversions above station 

For irrigation.

Discharge, in second-feet, water year October 1948 to September 1947

Day

1

2

3

4

5

6

7

8

10

11

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Oct.

6.0

12

30

20

20

20

21

20

19

18

17

17

18

18

18

18

22

24

22

20

19

19

19

20

20

20

18

47

35

Nov.

24

24

20

27

24

16

21

24

19

17

22

23

24

26

22

19

*23

24

22

19

16

26

25

26

20

27

28

24

23

-

Dec.

20

23

17

28

22

23

27

21

23

19

26

28

24

23

21

15

17

13

14

21

21

21

23

21

21

23

24

21

19

18

18

Jan.

19

18

18

19

18

17

17

18

18

18

19

17

16

*15

14

15

17

18

18

18

19

19

20

20

20

19

19

18

17

16

17

Feb.

17

16

18

17

18

18

17

17

17

20

18

17

*18

19

22

27

26

25

24

23

24

28

26

26

26

26

23

28

_

-

-

Month

December . ..................................

Calendar year 1946 ......................

May........................................

September .......................... .......

Water year 1946-47 ......................

Mar.

22

26

26

26

24

20

47

35

30

26

27

25

*20

26

22

24

45

84

103

85

86

96

75

42

35

34

34

44

51

47

39

Apr.

32

44

48

44

30

26

29

23

32

29

27

22

23

42

79

72

77

106

87

133

202

252

228

152

134

163

195

158

164

253

-

Secondfoot-days

678.0

655

22,590.0

551

1,326

2,906

15,260

8,733

1,778

442.0

377.4

33,986.4

May

363

523

708

785

845

834

834

843

785

660

824

534

469

474

427

384

395

384

355

333

331

357

344

295

290

292

352

437

305

243

255

Maximum

62

28

28

476

20

28

103

253

845

496

128

38

24

845

June

262

271

366

496

366

318

355

421

465

371

323

315

248

225

231

260

298

273

285

299

449

320

229

196

188

204

205

179

169

146

-

Minimum

6.0

16

13

1.6

14

17

20

22

243

146

12

8.6

6.7

6.0

July

128

124

126

126

120

101

92

80

84-

97

7C

se

4F

4?

se

3S

5C

41

32

26

23

26

54

38

25

20

16

16

14

12

12

Aug.

13

12

11

11

14

16-

15

16

14

38

35

19

15

20

17

14

15

13

11

9.9

9.0

12

14

11

9.9

11

9.7

9.9

9.4

8.6

8.6

Mem

21.9

22.6

21.1

61.9

17.8

21.5

42.8

96.9

492

291

57.4

14.3

12.6

93.1

Sept.

8.6

8.6

8.4

7.8

6.7

7.0

8.4

9.9

11

24

23

22

17

15

13

13

13

15

14

13

12

12

11

11

12

12

12

12

12

13

Runoff in 

acre-feet

1,340

1,340

1,300

44,790

1,090

1,200

2,630

5,760

30,270

17 , 320

3,530

877

749

67,410

* Winter discharge measurement made on this day.

Note. - Staire-dlscharge relation affected by ice Dec. 30 to Feb. 2O (no gage-helgh*; reco 

17-20)7

: ! Jan. 3-5,
GREEN RIVER BASIN 205

Brush Creek above cave, near Vernal, Utah

Location.- Water-stage recorder, lat. 40°42', long. 109°36', In sec. 29, T. IS., R. 21 

E., at road bridge a quarter of a mile downstream from Government Creek, 1 mile upstream from cave, and 17^ miles northwest of Vernal. Apr. 24 to Oct. P, 1946, at 

datum 2.0 feet low^r.

Records available.- April 1946 to September 1947.

Extremes.- 1946: Maximum discharge during period, 52 second-feet Apr. 25; minimum, 1.2

 second-feet Sept. 29, 30.

1946-47: Maximum discharge during year, 234 second-feet May 8; minimum, 0.1 

second-foot Sept. 29, 30.

Remarks.- Records fair. Oaks Park Canal diverts above station from Brush Creek to Ashley

 Creek Basin. Plow regulated by Oaks Park Reservoir (capacity, 6,250 acre-feet). For 

records of diversion see records for Oaks Park Canal page 209.

Discharge, in second-feet, 1946-47 

1946

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. Nov. Dec. Jan. Feb. Mar. Apr.

_

.

_

-

_

_

_

-

_

_

_

_

-

_

_

_

-

.

_

_

34

34

32

26

21

19

17

Hay

13

12

11

10

9.8

9.4

8.3

7.8

7.8

8.9

7.6

7.1

6.8

7.3

8.5

7.8

6.6

6.2

8.0

5.4

5.2

4.7

5.4

6.2

7.6

12

11

20

8.9

13

15

June

16

15

13

12

12

10

11

11

11

11

11

11

11

11

10

11

10

11

10

9.8

9.6

9.4

8.9

8.7

8.7

9.4

8.5

7.3

6.8

6.8

July

6.9

6.8

' 6.8

6.8

6.6

5.9

5.8

5.5

5.4

5.3

5.1

5.2

7.8

5.8

4.9

4.6

4.6

4.5

4.2

3.8

3.7

3.8

5.2

4.9

4.6

4.5

3.8

4.5

4.7

2.4

2.8

Aug.

2.6

2.7

2.5

2.5

2.4

2.6

2.6

2.4

2.3

2.3

1.5

1.8

1.8

1.8

1.9

2.0

2.2

2.1

2.0

2.0

2.3

2.8

3.1

2.4

2.9

3.3

2.8

2.7

2.3

2.3

2.4

Sept.

2.4

2.4

2.2

2.2

2.0

2.0

2.0

2.0

1.9

1.4

1.3

1.3

1.4

1.6

1.5

1.5

1.5

1.7

1.6

1.6

1.5

1.4

1.3

1.3

1.4

1.4

1.3

1.3

1.2

1.2
206 GREEN RIVER BASIN

Discharge, in second-feet, of Brush Creek above cave, near Vernal, Utah, 1946-47 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

26

26

27

28

29

30

31

Oct.

1.5

2.7

2.3

1.6

> 1.0

Nov.

. 0.9

> .8

> .7

-

Deo.

1 0.7

. .6

Jan.

> 0.5

Feb.

' 0.5

_

_

-

Mar.

' 0.5

Apr.

' 0.6

\ '

1

, 1.0

-

May

5.0

12

E5

50

70

90

115

141

104

92

86

73

68

68

73

77

70

67

65

69

65

57

53

61

122

148

148

160

125

116

116

June

110

104

112

116

101

88

86

88

86

73

79

78

78

85

74

64

63

58

54

74

102

88

90

91

92

86

80

72

70

61

July

54

49

43

40

35

31

35

31

27

22

18

16

8.1

8.6

8.3

.9

.9

.9

.4

.2

.6

.6

.6

.3

.5

.4

.0

.9

.9

.6

.4

Aug.

.4

.4

.3

.8

.9

.4

.0

.0

.0

.4

.8

.6

.2

.2

3.0

3.0

3.0

3.0

3.0

3.5

5.0

5.5

4.3

2.9

2.3

2.1

2.0

2.1

1.3

2.0

2.0

Sept.

2.2

2.2

2.1

1.9

2.2

2.2

2.3

2.4

4.3

4.0

3.8

3.8

3.6

3.6

3.3

3.2

3.5

3.3

3.3

3.3

3.2

3.0

3.2

3.3

3.3

3.4

3.0

.2

.1

.1

Note.- Ho gage-height record Oct. 4 to May 7; discharge computed on basis of 1 discharge measur 

ment, weather records, and records for stations on nearby streams.

Monthly discharge, in second-feet, 1946-47

Month

December. ...................................

Calendar year .......................

Unv

September. ..................................

December. ...................................

Calendar year .......................

May........................'.................

September . .................................

Water year 1946-4? ......................

Secondfoot-days

_

183

278.3

311.9

157.2

73.3

48.8

_

35.1

24.0

20.1

_

15.5

14.0

15.5

23.0

2,591.0

2,503

525.1

109.4

83.3

5,959.0

Maximum

_

_

34

20

16

6.9

3.3

2.4

.

2.7

-

-

_

_

_

160

116

54

5.5

4.3

160

Minimum

_

_

17

4.7

6.8

2.4

1.5

1.2

-

_

-

-

_

_

-

-

5.0

54

4.4

1.3

.1

.1

Mean

_

_

.

26.1

9.00

10.4

5.07

2.36

1.63

-

1.13

.80

.65

-

.50

.50

.77

16.9

16.3

Runoff in 

acre- feet

.

-

-

552

145

2,090

70

-

31

11,820
GREEN RIVER BASIN 207

Brush Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40°35', long. 109°26', In NW^NEi sec. 10, T. 3 S., 

R. 22 E. , 2 miles upstream from Little Brush Creek and 10 miles northeast o/ Vernal.

Drainage area.- 82 square miles.

Records available.- March 1939 to September 1947.

Extremes.- Maximum discharge during year, 433 second-feet June 23 (gage height, 5.08 

feet) , resulting when dam in fish pond upstream was blasted out, from rating curve 

ext^nded above 250 second-feet; minimum recorded, 14 second-feet several times in 

October, February, and March, but may have been less during periods of no gage-height 

record.

1939-47: Maximum discharge, that of June 23, 1947; minimum recorded, 7 second-feet 

Jan. 2, 1940, but may have been less during periods of ice effect.

Remarks . - Records good. 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 r- 209.)

Discharge, in second-feet, water year October 1946 to September 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.

17

aZl

a!7

a!6

a!6

a!5

15

15

15

15

14

14

14

15

15

15

15

16

15

15

15

14

14

14

14

14

14

14

15

16

17

Nov.

17 17

17

17

17

17

17

17

16

16

16

15

16

15

15

15

15

15

15

15

15

15

16

16

16

16

16

16

16

16

-

Dec.

17

17

17

17

17

17

18

18

17

17

17

*17

17

17

17

16

16

b!6

16

16

15

15

15

15

IS

15

16

16

b!5

b!5

b!5

Jan.

> b!5

(*)

Feb\

' al4

*14

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

.

_

-

Month

October ....................................

November. ..................................

December .............. ....................

Calendar year 1946 ......................

January. ........... ..................... .

February ...................................

March. .....................................

April. .....................................

MAV May. .......................................

June .......................................

July.. ................... .................

August .....................................

September ..................................

Water year 1946 47 ......................

Mar.

b!4

14

14

14

14

14

14

15

15

15

15

15

15

15

15

15

*16

16

15

15

15

16

16

15

15

16

16

16

17

16

17

Apr.

16

17

17

17

18

17

17

17

18

18

17

17

17

17

19

22

25

29

32

34

44

70

78

69

68

61

62

62

64

71

-

Secondfoot-days

471

478

504

7,347

465

407

470

1,050

6,846

5,990

2,250

1,069

781

20,781

May

98

141

181

210

227

237

245

249

247

245

253

246

239

231

225

221

225

220

216

215

217

217

216

212

216

225

233

239

238

233

229

Maximum

21

17

18

96

15

17

78

253

227

173

57

35

253

June

227

223

223

225

225

222

215

213

211

203

198

193

186

191

190

182

173

163

154

154

182

190

212

204

210

213

212

208

198

190

-

Minimum

1'

i:

IS

1]

_

14

1

9(

1543<2"

2C

14

July

173

a!58

a!45

a!33

a!22

alll

a!04

96

89

85

76

68

61

55

53

52

50

49

47

48

47

46

46

46

45

43

42

41

41

39

39

Aug.

38

39

38

38

39

39

37

36

36

38

39

57

a45

a38

a35

a34

a33

332

331

a31

a30

a30

a29

a29

a28

27

27

28

27

33

a28

Mean

I 15.2

i 15.9

i 16.3

L 20.1

15

14.5

I 15.2

i 35.0

) 2ri

I 200

) 72.6

r 34.5

) 26.0

L 56.9

Sept.

a26

a26

325

a25

24

25

25

25

26

26

26

26

25

24

24

24

24

25

25

24

24

24

28

35

35

35

32

26

22

20

-

Runoff in 

acre-feet

934

948

1,000

14,570

922

807

932

2,080

13,580

11,880

4,460

2,120

1,550

41,210

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather recorda and records for 

on nearby streams,.

b Stage-discharge relation affected by ioe.
208 GREEN RIVER BASIN

Brush Creek near Jensen, Utah

Location . - Staff gage, lat. 40°24', long. 109°21', in SW£ sec.4,T. 5 S., R. 23 E., 

aDout 2,000 feet above mouth and 2f miles north of Jensen.

Records available.- April 1939 to September 1947.

Extremes.- Maximum discharge observed during year, 232 second-feet June 17 (gage height, 

a.60 reet); minimum discharge during year, 0.2 second-foot Oct. 4-18, July 23-26.

1939-47: 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 secondfeet; no flow on many days in some years.

Remarks.- Records fair. Gage read once daily; twice daily during high water. Many 

diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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. .

0.2

59

3.0

.2

.2

.2

.2

.2

.2

.2

a. 2

.2

.2

a. 2

.2

.2

.2

.2

.3

.5

.6

.6

.6

.6

.6

.7

.7

.7

176

24

16

Nov.

14

12

11

aio

9.3

9.3

10

10

alO

10

10

10

10

11

12

13

14

14

14

14

14

14

16

19

19

19

20

20

21

20

-

Dec.

19

18

16

16

16

16

20

23 *21

b20

Jan.

> a20

(*)

Feb.

(*)

 a20

_

_

-

Month

October ....................................

November. ........................ .........

December.,. ..................................

Calendar year 1946 ................. ....

January. ...................................

February. .............. ..................

March ......................................

April .............. .......................

May. .......................................

June .......................................

July. .............. .......................

August. ....................................

September. .................................

Water year 1946-47 .......................

Mar.

 a20

*22

21

22

48

44

22

23

22

23

21

21

21

14

15

14

14

13

12

11

Apr.

5.7

3.7

3.4

1.8

1.9

2.8

16

16

16

17

13

15

3.0

2.7

1.6

1.2

2.0

5.7

7.6

20

29

39

58

44

26

28

30

29

41

53

Second 

foot-days

287 1

409! 6

605

3,280.7

620

560

643

533.1

4, 767

5, 218

826 . 7

583 . 6

107.4

15,160.5

May

78

126

165

188 iaa

186

182 '

182

190

196

208

216

200

159

141

139

132

126

123

123

126

128

126

123

123

123

131

152

165

161

161

Maximum

176

21

23

176

48

216

232

99

104

20

232

June

154

159

176

184

180

172

165

165

163

159

166

163

166

168

168

168

232

165

154

165

192

176

180

184

188

192

188

184

176

166

-

Minimum

0.2

9.3

16

0

11

1.2

78

154

.2

.3

1.6

.2

July

99

94

84

70

68

54

50

47

44

41

40

38

35

3.5

23

.4

.3

2.5

.3

.3

.3

.3

.2

.2

.2

.2

.3

.3

.3

.3

.3

Aug.

0.3

.3

.3

.3

.3

.3

.3

21

91

27

25

34

a33

31

21

21

21

19

17

16

21

104

34

12

3.7

4.2

5.0

5.0

5.2

5.2

5.2

Mean

9.26

13.7

19.5

8.99

20

20

20.7

17.8

154

174

26 . 7

18.8

3.58

41.5

Sept.

6.9

6.2

4.2

3.7

2.8

2.2

1.9

1.7

2.0

1.8

1.6

1.6

1.9

1.9

1.9

1,7

1.7

1.9

1.7

1.7

1.7

1.9

2.2

15

20

5.0

2.8

2.8

2.5

2.5

-

Runoff in 

acre- feet

569 ai2

1,200

6,500

1,230

1,110

1,280.

1,060

9,460

10,350

1,640

1,160

213

30,080

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of 2 discharge measurements, weather records, 

and records for station near Vernal.

b Stage-discharge relation affected by Ice.
GREEN RIVER BASIN 209

Oaks Park Canal near Vernal, Utah

Location.- Water-stage recorder, lat. 40 0 44', long. 109°38', in SE£ sec. 12, T. IS., 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 1947.

Extremes.- Maximum discharge during year, 34 second-feet July 18 to Aug. 3; no flow Oct. 

19 to about Apr. 30.

1946-47: Maximum discharge, 44 second-feet June 8, 1946; no flow at times.

Remarks.- Records good except those for period of no gage-height record, which are poor. 

.Canal diverts water from Brush Creek, water shic'h has been" stored in Oaks Park Reservoir 

for irrigation in Ashley Creek Basin.

Discharge, in second-feet, water year October 1946 to September 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.

2.3

2.2

Z.2

Z.O

Z.O

Z.O

Z.O

1.9

1.9

1.7

1.6

1.6

1.6

1.7

l.S

.6

.1

.1

O

0

0

0

0

0

0

0

0

0

0

0

-

Nov. Dec. Jan. Feb.

Month

December ...................................

Calendar year ......................

May. .......................................

September . .................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

0

_

35 2

554.7

1,880.6

May

> al.O

2.1

Z.O

1.8

1.7

1.6

Maximum

0

.

32

34

June

1.5

1.5

1.5

1.4

1.3

1.3

l.Z

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.2

l.Z

1.2

l.Z

1.2

1.3

1.4

1.2

l.Z

l.Z

l.Z

l.Z

1.2

1.0

1.0

1.0

Minimum

0

_

0

July

1.0

1.0

1.0

1.0

1.0

.9

1.0

1.0

.9

.9

.8

3.4

ZO

25

27

Z7

3Z

34

34

34

34

34

34

34

34

34

34

34

34

34

34

Aug.

34

34

34

33

30

30

29

29

29

29

27

14

9.3

9.6

9.6

9.5

11

17

17

Z6

26

26

Zl

13

10

9.8

9.8

6.Z

4.7

5.8

9.5

Mean

0

_

1 18.5

5.15

Sept.

11

11

11

1Z

14

14

14

ZO

3Z

3Z

3Z

3Z

31

28

ZZ

ZZ

ZZ

23

23

ZZ

20

ZO

ZO

ZO

ZO

ZO

5.5

.4

.4

.4

Runoff in 

acre- feet

0

0

_

1,Z30

1,200

1,100

3,730

a No gage-height record; discharge computed on basis of weather records.
210 GREEN RIVER BASIN

Little Brush Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40°43', long. 109°30', in SE£ sec. 24, T. IS., R. 

21 K., half a mile upstream from cave, three-quarters of a mile upstream from Kane 

Hollow, and 17-j miles north of Vernal.

Drainage area.- 28 square miles.

Records available.- October 1945 to September 1947.

Extremes.- 1945-46: Maximum-discharge observed during year, 60.4 second-feet Apr. 25 

(discharge measurement); minimum not determined, occurred during period of no gageheight record.

1946-47: Maximum discharge during year, 384 second-feet May 8 (gape 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 diversion above station.

Discharge, In second-feet, 1945-47 

1945-46

Das

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.

5.4

5.4

5.4

5.0

*4.7

4.9

5.8

5.4

5.1

5.1

4.3

4.7

5.8

4.3

3.6

3.8

4.0

4.0

3.6

3.6

b3.6

b3.5

b3.4

b3.3

b3.3

b3.4

b3.5

b3.6

3.6

3.2

3.4

Nov.

3.2

2.8

2.8

2.8

2.6

b2. 4

*bZ.3

b2. 3

> b2.2

, bl.9

] \ 181>8

-

Dec.

' 1.7

 1.4

Jan.

' 1.2

Feb.

> 1.0

_

_

-

Mar.

 1.0

Apr.

' 1.2

),,

3.5

7.0

15

30

*55

50

40

30

25

25

May

30

25

23

27

34

40

37

36

36

35

30

30

29

32

36

41

38

36

36

33

33

32

32

32

32

29

27

28

30

28

31

June

35

33

31

28

25

23

22

20

19

17

16

16

15

15

14

13

14

14

14

13

12

11

10

9.2

9.2

8.8

8.2

8.2

13

14

-

Julv

14

13

13

13

14

14

14

12

12

12

11

12

16

16

12

11

11

11

10

10

10

11

15

15

15

15

14

14

13

13

13

Aug.

12

12

12

12

11

11

11

10

9.6

9.2

9.2

9.2

9.2

8.8

8.8

8.8

4.9

3.0

2.0

1.6

1.8

1.9

4.7

3.2

1.9

2.4

5.6

5.8

2.6

1.6

1.6

Sept.

1.7

2.1

1.7

1.3

1.3

1.4

1.3

1.4

1.5

1.6

1.3

1.3

1.4

1.0

1.0

1.2

1.2

1.2

1.0

.9

.8

.8

.8

.7

.7

.8

.7

.7

.7

.7

-

Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Oct. 1-4, Nov. 28 to May 6, Aug. 18-21, Sept. 11-15; 

puted on basis of 1 discharge measurement, trends of winter flow, weather records, 

stations on nearby streams.

discharge commd records for
GREEN RIVER BASIN 211

Discharge, in second-feet, of Little Brush Creek near Vernal, Utah, 1945-47--Coitinued

1946-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.8

2.7

1.4

.9

1.0

1.5

1'.6

1.6

1.4

1.6

1.2

1.3

1.3

1.3

1.5

1.6

*1.9

2.2

2.0

1.7

1.7

1.7

1.6

1.5

1.5

1.5

1.7

1.9

2.0

1.8

1.5

Nov.

I"

},..

. .9

. .8

-

Dec.

. 0.8

.7

Jan.

> 0.6

Feb.

0.5

-

-

-

Mar.

 0.5

Apr.

> 0.8

2.0

2.5

3.0

4.0

4.5

5.0

6.0

7.0

-

May

20

35

70

150

170

210

*280

284

240

210

246

221

189

180

187

207

215

199

204

221

232

221

192

177

168

180

175

166

139

131

133

June

131

128

131

137

128

110

107

107

101

83

86

80

90

96

87

80

78

71

65

88

110

109

122

129

133

129

113

98

88

75

-

July

63

57

51

45

41

36

40

34

33

31

27

26

24

23

22

22

20

19

19

19

18

17

16

16

15

14

13

13

12

12

12

Aug.

11

11

11

11

12

12

1CV

10

10

11

11

10

12

11

11

10

10

9.2

8.5

8.2

9.6

11

9.6

8.8

8.5

8.2

7.9

8.5

7.9

7.9

7.6

Sept.

7.3

7.3

7.3

7.0

7.0

7.0

6.7

7.0

7.

7.

6.

6.

6.

6.

6.

6.

6.

6.

6.

5.8

5.8

7.0

28

27

24

20

7.6

1.7

1.6

1.5

-

* Winter discharge measurement made on this day.

Ho be.- Ho gage-height record Hov. 4 to May 7 (stage-discharge relation affected by ice for most 

of period); discharge computed on basis of 1 discharge measurement, trends of winter flow, and 

weather records. Stage-discharge relation affected by ice Oct. 20 to Hov. 3.

Monthly discharge, in second-feet, 1945-47

Month

December ....................................

Calendar year .......................

May. ........................................

September. ..................................

Water year 1945 46 .......................

December. ...................................

Calendar year 1946 .......................

September. ..................................

Water year 1946-47 .......................

Secondfoot-days

131.7

66.3

46.4

.

37.2

28.0

31.0

306.0

' 998

500.6

399

208.4

34.2

2,786.8

28.0

23.2

2,642.5

14.0

15.5

95.0

5,652

3,090

810

305.4

260

10,360.6

Maximum

5.8

3.2

.

_

_

55

41

35

16

12

2.1

55

2.7

-

55

_

_

_

284

137

63

12

28

284

Minimum

3.2

_

-

-

-

-

_

23

8.2

10

1.6

.7

.7

.8

-

-

.

_

-

_

20

65

12

7.6

1.5

-

Mean

4.25

2.21

1.50

-

1.2

1.0

1.0

10.2

32.2

16.7

6.72

7.64

1.58

.933

.75

7.24

.6

.5

.5

3.17

182

103

26.1

9.85

8.67

28.4

Runoff in 

acre-feet

261

-

74

5,530

97

56

5,240

37

28

20,560
GREEN RIVER BASIN

Ashley Creek below Trout Creek, near Vernal, Utah

Location.- Water-stage recorder, lat. 40°44', long. 109°41', in NE£ sec. 16, T. IS., R.

20 E., 1,000 feet downstream from Trout Creek, 3 miles upstream from South Pork, and

21 miles northwest of Vernal.

Drainage area.- 27 square miles.

Records available.- October 1943 to September 1947.

Extremes.- Maximum discharge during year, 601 second-feet May 8 (gage height, 3.64 feet; 

minimum not determined, occurred during period of no gage-height record.

1943-47: Maximum discharge, that of May 8, 1°47; minimum nut 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. Flow slightly regulated at headwaters by Long Park Reservoir (capacity, 500 acre-feet). No diversion above station.

Discharge, in second-feet, water year October 1946 to September 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

29

27

28

29

30

31

Oct.

3.4

11

4.5

4.2

(*)

' b4.5

4.6

5.0

5.0

4.5

4.0

Nov.

» 4.0

> 3.7

> 3.4

-

Dec.

3.4

> 3.0

Jan.

' 2.5

Feb.

2.0

_

_

-

Month

October. ..........................

November . ......... .............. ... .....

December . ............. ............

Calendar year 1946 ................ .....

January. ...........................

February. .................................

March. ............. .............. . .

April ......................................

'May. .......................................

June ......... ........ .............. .....

July. ...............................

August .....................................

September. ........................... .....

Hater year 1946-47 ................ .....

Mar.

2.0

Apr.

> 3.0

6.0

. 10

-

Secondfcot-days

145.2

111.0

99.0

4,097.2

77.5

56.0

62.0

175.0

 5,397

3,528

1,114

456.4

190.3

12,411.4

May

25

60

150

210

225

260

338

*405

338

262

222

194

165

148

168

211

204

200

222

237

250

230

204

187

187

207

207

207

154

160

160

Maximum

11

-

.

_

405

170

70

32

11

405

June

151

154

168

154

133

123

116

108

91

74

81

88

133

121

101

86

90

82

74

124

153

133

158

170

157

143

112

90

84

76

-

Minimum

3.4

-

.

_

25

74

18

7.6

5.0

-

July

70

62

58

55

51

47

51

45

44

42

37

34

32

31

29

28

27

26

28

30

25

24

24

22

19

18

22

34

34

33

32

Aug.

32

32

31

29

26

18

16

16

15

16

14

12

11

12

12

14

13

11

9.7

8.2

10

17

12

9.7

9.1

8.2

8.8

9.4

8.2

8.5

7.6

Mean

4.68

3.70

3.19

11.2

2.5

2.0

2.0

5.83

206

118

35.9 

14.7

6.34

34.0

Sept.

7.0

6.6

6.4

6.4

6.4

6.2

6.0

6.4

7.6

7.0

6.2

5.8

5.8

5.6

5.4

5.4

11

8.5

7.9

6.2

5.6

5.4

5.6

7.9

6.0

5.6

5.2

5.0

5.0

5.2

Runoff in 

acre-feet

288

220

196

8,130

154

111

123

347

12,690

7,000

2,210

905

377

24,620

* Winter discharge measurement made on this day. 

b Stage-discharge relation relation affected by Ice.

Note.- No gage-height record Oct. 27 to May 6; discharge computed on basis of weather records and 

records for nearby stations.
GREEN RIVER BASIN 213

Ashley Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40°34'50", long. 109°37'20", In SE£ sec. 1, T. 3 

3., H: 20 E., three-quarters of a mile upstream from head of Utah Power & Light Co.'s 

canal, 4j miles upstream from Dry Fork, and 10 miles northwest of Vernal.

Drainage area.- 101 square miles.

Records available.- June 1914 to September 1947. October 1911 to June 1914 at power 

plant 15- miles downstream.

Average discharge.- 31 years (1914-16, 1918-47), 104 second-feet.

Extremes.- Maximum discharge during year, 1,190 second-feet May 8 (gage height, 3.94 feet); 

minimum, 24 second-feet Mar. 7-16.

1911-47: Maximum discharge, 2,050 second-feet May 29, 1921; minimum recorded, 16 

second-feet Mar. 21, 1937, Mar. 21, 1943, Mar. 27, 1944.

Remarks.- Records good. 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 records for Oaks Park Canal p. 209.) City of Vernal pipe line 

(capacity, approximately 5 second-feet) 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 1946 to September 1947

Day

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.

45

65

64

60

59

59

60

59

58

58

54

56

56

54

56

58

56

56

53

53

63

54

53

48

52

52

54

50

53

54

58

Nov.

60

58

54

56

56

54

53

53

52

45

48

50

50

49

48

45

46

48

46

45

42

45

48

46

43

44

45

44

44

44

-

Dec.

43

43

42

42

42

43

43

43

39

40

40

42

42

42

42

40

37

34

37

39

38

38

37

36

36

36

36

35

34

34

35

Jan.

35

35

34

33

33

33

33

33

33

32

32

32

32

32

32

31

31

31

30

31

31

30

30

30

30

29

29

29

29

29

29

Feb.

28

28

28

28

27

27

27

27

27

26

26

26

26

26

26

26

26

26

26

26

25

25

25

25

25

25

26

26

_

_

-

Month

October ....................................

November . ..................................

December. ............. ....................

Calendar year 1946 ......................

January ....................................

February ......................... .........

March. ........................... .........

April ......................................

May........................................

June .......................................

July ................................... ...

August ........................... .........

September. ....................... .........

Water year 1946-47 ................. ....

Mar.

26

26

26

25

25

25

24

24

24

24

24

2424'

24

24

24

25

26

26

27

27

28

29

28

27

29

28

29

30

31

a31

Apr.

a32

a33

a32

30

29

30

31

30

31

31

31

30

30

34

38

43

46

56

58

67

95

123

119

115

111

109

119

115

115

128

-

Secondfoot-days

1,720

1,461

1,210

24,437

973

735

814

1,891

15,945

10,109

5,363

3,546

2,707

46,474

May

184

327

542

740

852

887

894

873

608

458

441

368

365

346

384

458

480

472

527

561

592

546

480

445

437

476

485

513

404

396

404

Maximum

65

60

43

359

35

28

31

128

894

480

220

146

110

894

June

384

388

433

396

. 368

342

365

392

353

288

299

302

334

365

327

306

316

306

292

313

a480

a380

a380

a350

a320

a300

a270

a26o

a260

a240

-

Minimum

45

42

34

18

29

25

24

£9

184

240

142

86

63

24

July

3220

211

211

211

199

193

211

196

190

182

168

157

162

165

162

165

165

160

168

a!90

162

162

162

160

144

142

142

154

154

149

146

Aug.

146

146

144

144

142

129

124

124

122

129

129

115

106

108

106

a!03

alOO

a99

a98

a97

allo

a!40

a!30

allO

a98

93

93

95

86

90

90

Me*n

55.5

48.7

39.0

67 .0

31.4

26. 2

26*3

63.0

514

337

173

114

90.2

127

Sept.

88

86

88

86

88

88

88

90

106

110

106

103

101

99

93

90

106

101

101

93

88

88

86

93

88

84

78

65

63

63

-

Runoff in 

acre-feet

3,410

2,900

2,400

48,460

1,930

1,460

1,610 

3,750

31,630

20,050

10 , 640

7,030

5,370

92,180

a No gage-height record; discharge computed on basis of other Ashley Creek stations.
214 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-f se?. 31, T. 33., R. 

ai K., three-quarters of a mile downstream from Dry Pork and 4f miles northwest of 

Vernal.

Records available.- June 1939 to September 1947. March 1900 to December 1904 (fragmentary 

tary, published"as Ashley nreek near Vernal).

Extremes.- Maximum discharge during year, 2,090 second-feet May 8 (gags height, 5.33 

reet, from rating curve extended above 1,000 second-feet); minimum recorded, 24 second-feet Apr. 12.

1939-47: Maximum discharge, 2,650 second-feet July 21, 1945 (from rating curve 

extended above 1,500 second-feet); minimum recorded, 15 second-feet Mar. 9, 1944.

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

which 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. 209). Diversions above station for irrigation and municipal water supply.

Discharge, in second-feet, water year October 1946 to September 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

2R

?9

30

31

Oct.

36

52

56

54

58

57

57

53

53

54

49

51

51

51

53

54

52

52

48

48

47

48

48

46

48

48

56

54

62

60

62

Nov.

63

62

58

58

60

60

58

60

57

47

49

56

57

60

56

51

51

53

53

54

47

51

56

57

49

51

51

51

49

49

Dec.

49

49

48

48

48

49

52

51

47

47

48 '

*48

48

48

47

47

43

41

43

46

46

45

45

43

43

45

45

45

b45

-

Jan.

b45

45

b44

b43

b43

43

43

43

b43

42

b41

b41

b40

b40

b39

b38

b38

b37

b36

*35

34

34

34

34

34

34

34

34

33

b33

33

Feb.

b32

32

32

32

32

32

b32

b32

b32

' b31

30

*30

31

31

31

31

b31

31

b31

31

31

31

31

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

May........................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

b31

31

31

31

31

31

32

32

35

36

36

35

36

36

36

36

*39

38

37

37

37

36

34

31

30

32

31

33

34

35

35

Apr.

36

37

36

35

35

36

38

37

39

34

32

32

32

32

36

40

43

49

52

54

74

106

103

98

96

93

99

96

96

104

-

Second 

foot-days

1,439

25,246

1,190

1,730

3,911

2,776

67,576

May

147

285

538

834

1,120

1,140

1,460

1,600

1,430

1,050

980

763

670

606

621

706

779

806

855

955

1,020

999

883

784

748

779

828

889

680

650

670

Maximum

52

402

45

39

106

1,600

151

115

1,600

June

655

635

737

675

621

568

596

716

680

a540

a620

a680

a560

a630

a580

a540

505

505

492

606

769

621

626

587

546

528

479

449

449

416

-

Minimum

 Iff

41

21

32

147

101

62

30

July

384

358

343

332

315

298

322

312

292

292

260

240

229

229

220

215

218

215

197

231

213

202

197

207

180

169

158

164

162

155

153

Aug.

151

149

141

141

141

133

124

124

122

127

135

122

122

120

127

120

120

117

113

111

126

173

169

133

120

110

104

110

101

104

101

Mean

52 2

46.4

69.2

38.4

57.7

126

92.5

185

Sept.

96

93

90

88

90

90

90

94

111

115

111

108

104

103

94

93

103

104

103

96

91

88

86

93

88

85

79

65

63

62

-

Runoff in 

acre- feet

2,850

50,090

5,510

134,000

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of records for other Ashley Creek 

b Stage-discharge relation affected by ice.
GREEN RIVER BASIN 215

Ashley Creek near Jensen, Utah

Location.- Water-stage recorder, lat. 40°22', long. 109°25', in NE£, sec. 23, T. 5 S., 

R. 22 E., immediately downstream from U. S. Highway 40 bridge, 3 miles upstream from 

mouth and 3 miles west of Jensen, Utah.

Records available.- October 1946 to September 1947.

Extremes.- Maximum discharge during year, 1,370 second-feet May 9 (gage height, 5.02 

fee-t); minimum observed, 3.9 second-feet Oct. 10 (discharge measurement).

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. 209). Union Canal is only diversion between gage and mouth of Creek.

Discharge, in seoond-feet, water year October 1946 to September 19.'7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

 a4.0

t3.9

a4.0

a4.0

a4.5

a5.0

a5.0

5.4

6.4

7.0

8.0

7.7

8.3

8.8

9.3

10

11

11ii

12

17

14

12

Nov.

12

12

9.8

10

11

13

14

20

21

16

16

16

17

20

20

18

18

18

17

17

24

21

22

43

30

26

26

29

29

27

-

Dec.

27

27

27

27

28

30

51

40

*32

29

29

28

29

29

29

27

26

25

32

37

42

40

40

46

46

44

50

50

43

40

38

Jan.

37

38

40

44

49

54

58

' 60

(*)

> 58

Feb.

' 58

(*)

> 56

56

57

_

_

-

Month

October. ...................................

November. ........................ .........

December. ..................................

Calendar year ......................

January. ...................................

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July

August. ................... ................

September ..................................

Water year 1946-47 ............ .........

Mar.

52

54

56

60

62

62

61

61

66

65

64

60

*57

56

56

50

53

56

53

46

40

38

36

34

32

32

29

28

27

23

21

Apr.

21

20

20

18

20

19

16

16

21

21

18

18

16

16

17

16

16

16

20

24

17

41

27

17

13

13

15

16

18

15

May

15

17

136

366

634

747

757

966

1,190

783

648

451

368

365

242

248

361

332

365

472

587

644

528

443

365

376

546

932

783

560

550

forays Maxi221.3 17

592!s 43

1,088 51

1 738 

. ' co-j

l)490 66

561 41

15,777 1,190

15,195 873

1,108 130

801.9 71

459 24

40,619.0 1,190

June

435

419

629

799

610

533

515

644

692

498

582

624

489

564

485

403

403

403

332

365

873

663

601

555

519

476

387

281

236

a!80

Minimum

3.9

9.8

25

37

21

13

15

180

11

8.C

12

3.9

July

a!30

a90

a65

a45

a37

a3K

a35

40

41

48

42

3^

33

34

34

30

27

27

27

26

2F

2*

24

24

2Z

2C

18

16

14

11

Aug.

9.8

8.3

8.0

8.8

12

11

10

10

12

23

32

28

24

23

33

30

29

23

21

20

24

71

54

44

40

36

34

32

32

31

28

Mean

7.14

19.8

35.1

56. 1

56.7

48.1

18.7

509

506

35.7

25.9

15.3

111

Sept.

24

21

19

18

18

17

14

13

13

14

13

15

14

13

12

12

13

13

13

13

15

16

16

16

16

17

16

15

15

15

Runoff in 

acre-feet

439

1,180

2,160

3,450

3,150

2,960

1,110

31,290

30,140

2,200

1,590

910

80,580

* Winter discharge measurement made on this day.

t Computed fron ills in^r^ ne isurement .

a No gage-height records discharge computed on basis of records for other Ashley Creelc stations.

Note.- Stage-discharge relation affected by ice Dec. 18-24, Dec. 30 to Feb. 26 (n-> gage-height record June 9-2O, Feb. 17-25) .

852060 O - 49 - 15
216 GREEN RIVER BASIN

South Fork Ashley Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40 0 44', long. 109°42', In NE^ sec. 17, T. 1 S., R. 

20 E., at lower end of Hicks Park, 3-5- miles upstream from mouth and 21 miles northwest of Vernal.

Drainage area.- 20 square miles.

Records available.- October 1943 to September 1947.

Extremes.- Maximum discharge recorded during year, 248 second-feet June 20 (gage height, 

3.21 feet); minimum not determined, occurred during period of no gage-height record.

1943-47: Maximum discharge, 391 second-feet June 26, 1944 (gage height, 3.72 

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. Plow slightly regulated by Twin and Goose Lake Reservoirs (capacity, 

500 acre-feet). No diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

5.3

16

8.0

7.1

7.4

7.4

b7.0

b6.5

*b6.8

> b6.5

 b6.0

[ b7.0

} ,..

Nov.

\

> 6.0

'

},,

> 4.5

-

Dec.

> 4.3

> 4.0

Jan.

' 3.7

Feb.

> 3.5

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January .................................. .

February. ..................................

March. .....................................

April. .....................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 194S-47 ......................

Mar.

> 3.5

Apr.

> 4.5

5.0

5.5

6.0

6.5

7.0

8.0

 9.5

-

Secondfoot-clays

212.5

145.0

128.5

3,441.1

114.7

108 ! 5

191.0

4.OOO

3,264

1 , 398

544

276.0

10,480.2

May

15

25

45

80

140

170

200

240

200

170

150

125

105

94

100

110

*116

124

145

159

170

159

139 

126

129

149

149

141

102

109

114

Maximum

16

.

80

240

176

78

40

18

240

June

105

116

176

116

107

109

139

166

137

100

95

87

102

100

88

95

105

100

102

149

139

118

116

103

95

88

80

78

79

74

-

Minimum

5.3

-

.

15

74

21

11

c c

"

-

Jily

68

68

68

68

66

60

78

66

62

57

47

45

42

40

39

39

37

33

45

55

38

35

38 

34

28

26

25

24

24

22

21

Aug.

20

19

18

20

20

18

16

17

17

23

20

17

15

19

18

20

17

14

12

11

19

40

22 

16

15

13

14

14

13

14

13

Mean

6.65

4.83

4.15

9.43

3.7

3.5

3.5

6 .37

129

109

45.1

17.5

9.20

28.7

Sept.

12

10

10

10

10

9.6

9.2

9.6

12

10

9.2

8.4

8.0

7.7

7.7

7.4

18

13

12

9.2

7.7

7.4

7.7 

10

8.0

7.4

6.8

6.2

5.9

5.9

-

Runoff in 

acre-feet

421

288

255

6,830

228

194

215

379

7,930

6,470

2,770

1,080

557

20,790

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Oct. 30 to May 16j discharge computed on basis of weather records and 

records for nearby stations.
OREEN RIVER BASIN

Dry Fork above sinks, near Dry Pork, Utah

217

Location.- Water-stage recorder, lat. 40°38', long. 109°49', in sec. 20, T. 2 S., R. 19 

ITfunsurveyed), 14 miles upstream from mouth and 9 miles northwest of Dry Fork.

Drainage area.- 48 square miles.

Records available.- March 1939 to September 1947.

Extremes.- Maximum discharge during year, 569 second-feet May 8 (gage heifht, 4,45 feet), 

from rating curve extended above 200 second-feet; minimum not determinecf, occurred 

during period of no gage-height record.

1939-47: Maximum discharge, 784 decond-feet June 26, 1944 (gage height, 4.54 feet), 

from rating curve extended above 350 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-1-eight record, 

which are poor.

Rating table, water year 1946-47, except period of Ice effect

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

(Shifting-control method used Sept. 1-30)

1.8 12

2.0 17

2.2 26

2.4 40

2.6 60

2.8 85

3.0 115

3.3 172

3.6 250

4.0 382

4.1 420

Discharge, in second-feet, water year October 1946 to September 19'

Day

1

2

3

4

5

6

7

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.

13

35

28

22

22

24

24

24

23

b22

b21

23

22

*20

19

19

20

20

b!9

b!8

19

19

19

16

17

17

b!6

b21

b22

b20

b20

Nov.

b20

b20

b20

b20

b23

*20

19

19

17

b!7

b!7

b!7

b!7

17

17

a!7

a!5

-

Dec.

I

\ a!3

J

13

13

13

' a!3

1-

Jan.

a!2

Feb.

al2

_

-

-

Month

October. ...................................

November. ..................................

December. ........................ .........

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

Bay.. .....................................

June .......................................

July.... ...................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

r.

a!2

. a!3

Apr.

a!3

a!4

a!5

a!6

a!7

*a!8

19

18

22

25

25

22

21

21

20

22

21

21

24

-

Secondfoot-days

644

527

399

8,926.9

372

336

384

517

7,041

5,514

2,481

1,333

780

20,328

May

32

57

96

174

214

244

309

416

378

265

230

189

162

145

147

174

206

230

250

271

306

312

302

259

253

259

268

259

214

201

a219

Maximum

35

23

201

_

_

25

416

290

127

86

50

416

June

a200

a215

a230

212

199

189

222

290

206

a!85

a!65

al50

a!40

a!50

a!55

166

194

189

191

253

236

186

164

147

143

142

145

155

157

138

-

Minimum

13

-

-

_

32

138

41

31

20

-

July

127

122

120

122

115

10"

12^

122

112

103

83

80

73

71

67

73

73

63

61

67

64

60

67

70

56

50

47

45

44

42

41

Aug.

39

38

36

42

42

38

36

40

39

56

59

49

46

48

47

43

40

36

' 33

31

36

S6

67

47

42

38

36

39

35

36

33

Hero

20.8

17.6

12.9

24.4

12

12

12.4

17.2

227

184

80.0

43.0

26.0

55.7

Sept.

30

29

28

27

27

26

25

25

27

27

24

23

22

21

21

21

50

35

35

27

25

24

23

31

24

22

21

20

20

20

-

Runoff in 

acre-feet

1,280

1,040

791

17,710

?38

666

762

1,020

13,970

10,940

4,920

2,640

1,550

40 , 320

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for 

on nearby streams.

b Stage-discharge relation affected by Ice.
218 GREEN RIVER BASIN

North Fork of Dry Fork near Dry Fork, Utah

Location.- Water-stage recorder, lat. 40°38', long. 109°48', in sec. 17, T. 2 S., R. 19 

E., 2 miles upstream from mouth and 9j miles northwest of Dry Fork.

Drainage area.- 12 square miles.

Records available.- April 1946 to September 1947.

Extremes.- Maximum discharge during year, 136 second-feet May 7 (gage height. :_J .t">0 feet); 

minimum recorded, 0.4 second-foot Oct. 19, but may have been less during period of ice 

effect or no gage-height record.

1946-47: Maximum discharge, that of May 7, 1947; minimum recorded, that of Oct. 19, 

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 1946 to September 1947

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.

2.2

2.7

2.1

Z.I

1.9

Z.I

1.9

Z.I

1.9

1.9

1.6

1.9

Z.I

2.1

1.9

1.8

1.8

1.6

1.0

1.0

1.1

1.1

1.0

.9

1.1

i.o

1.0

1.6

1.7

l.Z

1.2

Nov.

1.2

1.1

1.1

1.1

1.2

*1.Z

1.1

.9

.8

.9

.9

.9

.8

.9

.9

.9

.9

.9

.9

.9

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

-

Dec.

0.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

. bl.o

1.0

1.0 } -

Jan.

. 0.9

Feb.

> 0.9

-

-

-

Month

October. ...................................

November. ..... .................. .........

December. ..................................

Calendar year 1946 ......................

January .............................. ... .

February ............................. ...

March. .....................................

April. ........ ............................

May. .......................................

June ......................................

July. .................................. ...

August ............................... .....

September. ...'..... .................. .....

Water year 1946-47 ................ .....

Mar.

1

> O.9

1.0

Apr.

1.1

1.2

1.3

1.3

1.3

1.5

1.7

2.0

2.Z

2.5

2.5

2.5

2.6

2.8

3.0

3.4

*4.0

4.8

4.8

7.4

9.5

9.5

8.5

7.7

7.4

7.4

7.9

7.7

7.7

8.Z

-

Secondfoot-days

50.6

Z8.6

29.7

27.9

25. 2

29.6

135 4

1 743

932

514.1

221. 5

129 U

3,867.0

May

11

Zl

41

57

70

81

97

103

83

7Z

67

54

49

48

51

56

57

58

59

61

63

59

55

50

49

49

48

49

4Z

41

42

Maximum

2.7

l.Z

9.5

103

41

Z3

9 3

c /

103

June

40

39

41

40

37

35

36

39

36

33

33

32

3Z

30

Z8

Z7

27

26

Z6

30

32

30

29

29

27

26

Z4

23

23

22

-

Minimum

0.9

I

1.1

11

Z2

9.6

5.4 sio

.8

July

22

22

ZZ

22

ZZ

22

23

ZZ

21

20

20

19

18

18

17

17

16

15

14

14

14

14

14

13

12

11

11

10

9.9

9.6

9.6

Aug.

9.3

9.3

8.9

9.3

8.9

8.3

8.0

7.7

8.0

8.6

8.0

8.0

7.7

7.0

7.0

6.7

6.7

6.2

5.9

5.7

6.7

8.3

6.4

5.7

5.7

5.4

5.7

5.7

5.4

5.9

5.4

Mean

1. 63

!96

.9

. 9

4isi

56 . £

31.1

16.6

7.14

4.31

10.6

Sept.

5.4

5.4

5.1

4.9

4.9

4.9

4.9

419

5.1

4.9

4.6

4.6

4.4

4.4

4.1

4.1

5.1

4.4

4.1

4.1

3.9

3.9

3.7

3.7

3.7

3 .

3

3.o

3.3

3.0

Runoff in 

acre feet

100

57

59

~"

55

50

59

268

3,460 

1,850

1,020

439

257

7,670

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 26 to Apr. 17; discharge computed on basis of 1 discharge 

easurement, weather records, and records for stations on nearby streams.
GREEN RIVER BASIN 219 

East Fork of Dry Fork near Dry Fork, Utah

Location.- Water-stage recorder, lat. 40°39 I , long. 109°46' , In see. 14, T ,\ S., R. 19 

EHfunsurveyed), 3j miles upstream from mouth and 8 miles northwest of Dry Fork.

Drainage area.- 12 square miles.

Records available.- April 1946 to September 1947.

Extremes.- Maximum discharge during year, 234 second-feet May 8; minimum not determined, 

occurred during period of ice effect.

1946-47: Maximum discharge, that of May 8, 1947; minimum, 1.7 second-feet Aug. 19, 

1946, but may have been less during period of ice effect.

Remarks.- Records fair. No diversion above station.

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.6 

4.8 

4.4 

4.2

4.1

3.9 

3.9 

3.8 

»3.8 

b3.6

b3.4 

4.2 

4.2 

3.9 

3.7

3.7 

3.7 

3.6 

b3.5

b3.5

3.6 

3.6 

3.6 

b3.2 

3.3

3.3 

3.0 

3.6 

3.7 

b3.4 

3.4

Nov.

1"

1 (*)

 3.0

. 2.5

Dec.

. 2.5 

12.0

Jan.

2.0

Feb.

' 2.0

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

May

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber ...................................

lendar year 

ary

h.. ...................... .............

1. .....................................

ember. . ................. .............

ter year 1946-47 ......................

Mar.

 2.0 

. 2.5

Apr.

, 3.0

}... 

}...

4.5

6.0 

8.0 

7.3 

6.9 

6.9

"' 7.0 

7.3 

7.0 

7.6 

10

Secondfoot-days

116.2 

88.8 

75.5

-

62.0 

56.0 

70.5 

142.0 

2,591 

1,799 

628.6 

207.9 

131.5

5,969.0

May

20 

35 

60 

80 

110

*140 

158 

195 

161 

103

83 

53 

45 

42 

46

56 

63 

67 

79

100

121 

110 

81 

72 

73

83 

88 

81 

58 

62 

66

Maximum

4.8

-

10 

195 

100 

36 

11 

5.6

195

June

64 

72 

90 

74

60

64 

90 

100 

76 

58

56 

48 

49 

49 

48

49 

53 

52 

56 

94

88 

68

60 

50 

44

41 

37 

35 

37 

37

Minimum

3.0

-

20 

35 

9.3 

4.8 

2.9

-

July

36 

35 

34 

33 

32

31 

33 

30 

28 

27

25 

23 

20 

19 

18

17 

17 

15 

15 

15

13 

13 

14 

13 

12

11 

11 

10 

9.8 

9.3 

9.5

Aug.

8.4 

7.7 

7.5 

7.9 

7.5

6.9 

6.2 

6.2 

6.2 

7.5

6.8 

6.4 

5.8 

5.8 

5.6

5.5 

5.6 

5.3 

4.8

5.0

7.3 

11 

7.9 

6.8

6.6

6.4 

6.8 

6.9 

6.6 

6.8 

6.2

Mein

3.75 

2.96 

2.44

-

2.0 

2.0 

2.27 

4.73 

83.6 

60.0 

20.3 

6.71 

4.38

16.4

Sept.

5.6 

5.6 

5.5 

5.3 

5.5

5.0 

5.0 

5.2 

5.3 

4.8

4.7 

4.4 

4.2 

4.2 

3.9

4.1 

5.5 

4.5 

4.4 

4.2

4.1 

3.9 

3.8 

3,6 

3.5

3.4 

3.4 

3.1 

2.9 

2.9

Runoff in 

acre-feet

230 

176 

150

-

123 

111 

140 

282 

5,140 

3,570 

1,250 

412 

261

11,840

¥inter discharge measurement made on this day. 

b Stage-discharge relation affMted by Ice. 

Note.- No gage-height record oet- 31 to May 6; discharge 

ent, weather records, and records for nearby stations.

tnputed pn basis of 1 discharge measure-
220 GREEN RIVER BASIN 

Duchesne River at Provo River Trail, near Hanna, Utah

Location.- Water-stage recorder, lat. 40°37', long. 110°54', in SE£ sec. 27, T. 3 N., R. 

9 w. uinta meridian, 400 feet dovmstream from Provo River Trail, 7 miles upstream 

from Hades Creek, and 12 miles northwest of Hanna. Datum of gage is 8,135.97 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 1947.

Average discharge.- 15 years (1929-33, 1935-43, 1944-47), 54.1 second-feet.

Extremes.- Maximum discharge during year, 698 second-feet June 7 (gage height, 3.32 feet); 

minimum not determined, occurred during period of no gage-height re-jord1929-33, 1935-43, 1944-47: Maximum discharge recorded, 888 second-feet June 24, 

1932; minimum recorded, 1 second-foot Aug. 30, 1931, Nov. 28, 1941.

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

Kecords show flow of river at proposed diversion tunnel to Provo River. No diversion 

above station.

Discharge, in second-feet, water year October 1946 to September 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.

12

15

13

11

10

11

16

20

19

17

15

Nov.

12

10

M

10

(*)

11

~

Dec.

11

> 10

Jan.

> 9

Feb.

8

_

-

-

Month

October .............................. ...

November ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ................... ...............

March.. ....................................

April. .....................................

May........................................

June .......................................

July. ....'..................................

August ......................... ...........

September. .................................

Water year 1946-47 ... ..... . . ...

Mar.

8

1"

12

Apr.

12

13

15

18

23

27

27

26

29

33

31

28

26

25

26

29

27

29

35

Secondfoot-days

387

308

321

20 522 9

279

224

302

611

9,761

9 527

2 '691 415

327.8

25,153.8

May

55

98

152

218

270

303

403

502

484

373

300

239

210

182

167

193

215

239

293

352

434

476

447

411

476

510

502

388

290

283

296

Maximum

20

-

580

35

510

593

174

34

15

593

June

306

334

341

287

283

320

463

593

510

341

290

236

212

245

316

411

459

414

430

489

338

277

224

193

185

201

212

212

218

187

Minimum

8

6*2

55

185

13

8.0

-

July

174

169

169

162

145

130

127

115

105

96

88

78

72

65

65

64

59

54

50

47

44

43

41

38

35

33

32

30

29

28

28

Aug.

29

29

27

28

26

25

23

28

31

34

30

25

23

22

22

19

18

17

16

16

26

31

23

19

18

16

15

14

14

14

13

Mean

12.5

10.3

10.4

56 . 2

9

8

9.7

20.4

315

318

77 9

22.3

10.9

68.9

Sept.

12

12

12

11

15

14

12

11

13

13

12

11

11

10

9.6

9. .6

10

11

14

12

11

10

10

9.6

9.2

8.8

8.4

8.4

8.0

9.2

Runoff in 

acre- feet

768

611

637

40,700

553

444

599

1,210

19,360

4)790

1,370

650

49,890
GREEN RIVER BASIN 221

Duchesne River near Hanna, Utah

Location.- Water-stage recorder, lat. 40°32'00", long. 110°52'15", In NE£ sec. 35, T. 2 

N., R. 9 W. Ulnta 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 Duehesne River near Hanna), March 1946 to September 1947

Extremes.- Ib46: Maximum discharge during period March to September, 39, second-feet 

Jane b; minimum, 18 second-feet Sept. 28', 2 Q .

1946-47: Mnximum discharge during water year, 887 second-feet May 26; minimum 

recorded, 13 se;ond-feet Oct. 24.

1921-23, 1930, 1946-47: Maximum discharge observed, 1,490 second-feet June 8, 9, 

1922; minimum recorded, that of Oct. 24, 1946.

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, 1946-47 

1946

Day

1

2

3

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. Nov. Dec. Jan. Feb. Mar.

.

-

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

-

-

.

_

_

_

-

_

35

36

31

30

Apr.

30

30

29

30

35

34

35

36

35

32

37

69

89

95

115

146

175

202

227

244

241

259

303

358

412

434

404

427

393

May

327

303

327

412

504

565

544

504

500

446

372

354

368

340

337

307

337

430

480

461

524

516

446

358

307

294

307

310

275

244

227

June

238

262

383

591

730

755

610

611

585

552

500

430

389

372

364

340

297

272

241

216

199

187

180

168

155

144

138

132

126

120

-

July

115

111

106

100

99

99

92

87

81

76

75

76

76

70

67

64

62

59

57

53

51

49

53

59

56

52

47

43

42

49

47

Aug.

41

39

37

36

35

35

35

34

32

31

31

36

33

33

32

30

28

27

26

26

31

33

46

36

32

30

29

28

26

25

24

Sept.

26

26

24

23

22

22

21

21

21

20

20

20

20

20

20

20

20

20

20

20

19

19

19

19

19

19

19

18

18

19
GREEN RIVER BASIN

Discharge, In second-feet, of Duchesne River near Hanna, Utah, 1946-47--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.

22

29

23

24

24

24

24

25

24

24

21

21

21

21

21

21

23

22

20

21

21

*21

21

19

20

20

24

36

35

33

29

Nov.

b23

1)21

b!8

1)19

1)19

1)20

20zi

21

1)19

21

20

20

21

1)19

bl8

22

23

21

*b20

bis

24

23

1)22

1)19

1)23

23

22

22

21

-

Dec.

b20

1)19

1)20

20

20

20

20

1)19

b!6

b!7

1)19

1)20

20

20

1)19

> 1)17

Jan.

, alS

Feb.

 a!7

_

_

-

Mar.

» alS

 ^35

*37

31

35

39

36

Apr.

36

37

37

35

33

32

33

33

34

32

32

33

37

55

73

81

82

82

79

94

104

97

84

76

73

75

84

79

89

104

-

Hay

146

224

323

434

512

552

640

755

736

632

552

469

412

364

340

364

400

430

492

565

657

696

674

636

696

746

755

632

520

508

520

June

524

544

552

480

484

496

640

778

714

524

484

408

378

397

457

552

598

548

569

632

508

442

378

330

313

323

330

327

337

294

-

July

275

266

266

256

233

213

208

199

187

175

161

152

144

138

138

132

124

117

109

104

100

102

97

90

87

79

75

72

69

67

69

Aug.

70

70

67

69

66

62

60

64

70

72

69

57

55

55

53

49

47

45

43

43

56

70

55

47

45

41

40

39

39

39

36

Sept.

34

33

32

31

33

36

31

30

32

33

30

29

28

26

26

26

28

28

32

29

26

25

24

24

24

23

22

21

22

23

-

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of weather records 

near Tabiona and other nearby stations.

b Stage-discharge relation affected by ice.

and records for station

Monthly discharge, in second-feet, 1946-47

Month

December. ...................................

Calendar year .......................

March. ......................................

May.........................................

September. ..................................

The period. ............. ..................

October 1946 ...............................

December. ...................................

Calendar year .......................

March. ......................................

April. ......................................

May. ........................................

September. .................................

Water year 1946-47 ......................

Second 

foot-days

614

_

561

.

14 341

841

43,339

Maximum

26

_

36

.

275

36

778

Minimum

120

18

_

19

18

.

21

-

Mean

167

345

32.2

20.5

_

23.7

18.1

.

Of; Q

28.0

119

Runoff in 

ao re-feet

1,220

61,810

1,460

1,240

1,110

.

944

1,670

85,960
QREEN RIVER BASIN 223

Duchesne River near Tabiona, Utah

Location.- Water-stage recorder, lat. 40°18'00", long. 110°36'10". in SW^STC^ sec. 18, T. 

2 S., R. 6 W. Uinta meridian, at bridge on State Highway 35, 6? miles instream from 

Rock Creek and 8 miles southeast of Tabiona.

Drainage area.- 352 square miles.

Records available.- January 1919 to September 1947.

Average discharge.- 28 years, 209 second-feet.

Extremes.- Maximum discharge during year, 1,450 second-feet May 9 (gage height, 6.81 

feet); minimum, 67 second-feet Oct. 1.

1919-47: Maximum discharge observed, 2,500 second-feet June 13, 1921, from rating 

curve extended above 1,100 second-feet; minimum recorded, 27 second-fee4; Oct. 17, 1934.

Remarks.- Records excellent except those for periods of ice effect, which are fair, 

Several diversions above station for irrigation.

Rating table, water year 1946-47, except periods of Ice effect 

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

3.7 71 5.0 419 

3.9 99 5.5 630 

4.1 136 6.0 885 

4.3 185 6.5 1,220 

4.6 275 6.8 1,370

Discharge, in second-feet, water year October 1946 to September 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

71 

78 

78 

81 

94

109 

114 

120 

120 

120

128 

130 

132

138 

136

138 

141 

141

136 

136

156 

136 

132 

130 

132

132 

134 

167 

175 

148 

143

136 

136 

132 

138 

141

141 

143 

145 

141

124

136 

136 

141 

143 

130

130 

130 

134 

134 

138

122 

132 

141 

134 

124

132 

134 

130 

128

126

124 

124 

122 

132 

132

132 

134 

128 

120 

118

124 

128 

126 

126 

122

122 

98 

*104 

blOS 

b!05

113 

113 

113 

113 

113

116 

116

> b90

' blOO

*102 

101

blOO 

blOO

b!04 

b!04 

104 

102 

104

104 

104 

99 

99 

104

101 

98 

106 

106 

109

116 

116 

118 

111 

104

101 

106 

111 

114 

*104

102 

106 

101

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber . ..................................

lendar year 1946 

ary

h. ......................................

1. ........................ . . . . . .

St. ....................................

ember ..................................

ter year 1946-47 ... ..................

101 

102 

104 

102 

96

96 

101 

102 

102 

113

111 

102 

106 

113 

111

124 

138 

143 

143 

141

138 

141 

150 

130 

118

128 

113 

'126 

126 

134 

130

Apr.

124 

126 

128 

124 

116

116 

113 

116 

124 '118

118 

111- 

118 

132 

162

185 

191 

196 

185 

199

231 

234 

207 

193 

191

188 

205 

202 

207 

225

Secondfoot-days

3,906 

4,032 

3,583

72,410

3, 103 

2,958 

3,685 

4,885 

27,533 

20,122 

7,502 

4,739 

3,778

89,826

May

269 

373 

517 

710 

836

897 

990 

1,230 

1,330 

1,230

1,100 

891

780 

725

650

680 

740 

780 

858 

933

1,060 

1,120 

1,120 

984 

1,070

1,100 

1,200 

1,030 

815 

760 

755

Maximum

175 

145 

134

897

118 

150 

234 

1,330 

997 

435 

199 

143

1,330

June

750 

750 

790 

710 

700

665 

755 

958 

997 

785

720 

630 

598 

581 

594

670 

760 

710 

705 

790

775 

660 

608 

538

500

492 

492 

484 

492 

463

Minimum

71 

122

64

98 

96 

111 

269 

463 

116 

120 

101

71

July

435 

411 

400 

392 

360

347 

329 

326 

308 

295

282 

265 

256 

246 

237

231 

216 

202 

193 

182

172 

169 

169 

154 

150

136 

136 

132 

124 

116 

122

Aug.

124 

120 

122 

141 

141

143 

145 

162 

175 

180

175 

162 

157 

159 

164

162 

152 

145 

143 

134

192 

199 

167 

157 

150

152 

141 

143 

141 

148 

143

Me in

126 

134 

116

198

100 

106 

119 

163 

888 

671 

242 

153 

126

246

Sept.

143 

141 

141 

143 

143

143 

143 

136 

132 

132

126 

124 

122 

118 

120

118 

143 

132 

132 

126

122 

122 

120 

118 

114

109 

109 

104 

101 

101

Runoff in 

acre-feet

7,750 

8,000 

7,110

143, 600

6,150 

5,870 

7,310 

9,690 

54,610 

39,910 

14,880 

9,400 

7,490

178,200

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
224 GREEN RIVER BASIN

Duchesne River at Duchesne, Utah

Location.- Water-stage recorder, lat. 40°09'55", long. 110°23'50", in S'fjNE-j sec. 1 T. 

4 S., R. 5 W. Uinta meridian, at Duchesne, half a mile upstream from Strawberry 

River.

Drainage area.- 660 square miles.

Records available.- December 1917 to September 1947.

Average discharge.- 30 years, 372 second-feet.

Extremes.- Maximum discharge during year, 2,270 second-feet May 27 (gag? height, 4.88 

feet); minimum, 74 second-feet Oct. 1.

1917-47: 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 of ice effect, which are fair. Diversions 

acove station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

Z3

24

25

26

27

28

29

30

31

Oct.

76

104

109

117

146

182

194

194

199

190

190

190

194

199

199

199

211

211

203

199

199

199

194

190

182

186

186

246

310

251

228

Nov.

211

194

203

207

215

211

215

237

233

203

199

215

224

235

215

211

207

215

220

220

*203

207

224

228

199

203

220

207

203

199

-

Dec.

194

190

186

199

199

203

211

199

182

175

179

203

194

194

182

175 *145

110

140

180

165

Jan.

 165

(*)

Feb.

170

*182

175

164

171

171

182

164

156

160

156

_

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 .....................

January. ................................. .

February. .................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1946-47 ...... ...............

Mar.

149

156

156

160

156

149

153

168

160

168

194

171

168

182

186

175

215

220

228

215

215

211

220

207

182

186

171

175

220

190

203

Apr.

194

190

199

190

179

179

179

171

190

190

182

175

160

164

199

237

246

256

256

256

289

320

300

265

242

228

233

256

242

256

Secondfoot-daya

5,877

6,381

5,455

117,335

5,115

4,741

5,709

6,623

44,867

41,523

16,027

8,179

4,623

155,120

May

305

450

702

1,020

1,260

1,390

1,530

1,790

2,000

1,910

1,800

1,480

1,270

1,150

1,050

1,050

1,140

1,200

1,320

1,460

1,680

1,840

1,900

1,750

1,850

1,930

2,110

1,990

1,610

1,470

1,460

Maximum

310

237

211

2,060

.

_

228

320

2,110

2,110

929

437

207

2,110

June

1,450

1,420

1,530

1,430

1,380

1,320

1,500

1,990

2,110

1,700

1,470

1,300

1,170

1,150

1,160

1,350

1,600

1,530

1,530

1,690

1,720

1,380

1,320

1,130

1,050

1,020

1,050

1,060

1,030

983

-

Minimum

76

194

110

74

_

149

160

305

983

211

203

123

76

July

920

893

920

929

875

804

762

736

694

660

605

553

517

497

476

490

463

431

387

364

347

342

342

310

289

265

251

246

233

215

211

Aug.

228

233

215

237

260

246

237

251

320

359

342

305

305

269

279

269

256

237

215

203

220

437

320

269

251

237

228

224

220

274

233

Mean

190

213

176

321

165

169

184

221

1,447

1,384

517

264

154

425

Sept.

207

199

194

190

171

179

171

168

156

156

153

143

136

130

130

130

164

171

164

164

160

143

136

139

136

130

127

123

123

130

-

Runoff in 

acre- feet

11,660

12,660

10,820

232,800

10,150

9,400

11,320

13,140

88,990

82,360

31,790

16,220

9,170

307 , 700

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 15 to Pet. 18 (no gage-height record Jan. 6- 

28, Feb. 6-17; discharge computed on basis of weather records and records for station near Tablona).
GREEN RIVER BASIN 225

Duchesne River at Myton, Utah

Location.- Water-stage recorder, lat. 40°12', long. 110°03', in NW£ sec. 25, T. 3 S., R. 

2-W. Uinta meridian, at Myton, 3 miles downstream from Lake Pork.

Drainage area.- 2,750 square miles.

Records available.- October 1899 to September 1947 (fragmentary 1903-11).

Average discharge.- 39 years (1899-1902, 1911-47), 610 second-feet.

Extremes.- Maximum discharge during year, 2,780 second-feet May 9 (gage height,^4.80 

feet); minimum, 27 second-feet Oct. 1.

1899-1947: Maximum discharge observed, 12,800 second-feet June 1Q, 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. Flow affected by 

reservoirs above station.

Discharge, in second-feet, water year October 1946 to September 19*7

Day

1

2

3

4

5

6

7

8

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

60

77

63

92

186

186

194

233

201

163

153

153

153

153

156

167

167

175

167

178

178

J.75

175

175

178

178

194

337

342

310

Nov.

279

287

274

279

318

328

318

375

410

375

346

385

420

450

415

405

385

420

445

465

420

390

450

496

390

356

425

430

415

395

-

Dec.

390

380

375

385

425

430

455

430

390

351

366

445

455

440

420

410

314

213

233

 314

390

370

395

395

395

395

405

385

262

190

190

Jan.

205

220

 240

270

300

340

360

365

360

355

345

335

325

315

305

300

290

290

300

320

315

310

305

*300

300

.

1

> 300

'

Feb.

300

300

 300

305

315

325

 330

340

350

355

360

370

380

390

415

430

450

465

*480

470

450

480

510

520

460

415

*390

366

_

_

-

Month

October ....................................

November .................................

December . ..................................

Calendar year 1946 .....................

January .................................. .

February. .... . ...........................

March ...... ...............................

April. .....................................

Mnv way . ... ...................................

June .......................... ............

July. ......................... ............

August ........................ ............

September. ................... .... ........

Water year 1946-47 . . ... . ...........

Mar.

337

342

337

351

351

346

328

351

342

370

508

410

390

440

425

370

491

496

470

420

390

405

420

435

336

337

346

342

370

370

400

Apr.

385

366

380

332

300

262

258

229

245

266

221

221

201

197

221

296

342

375

400

366

460

530

518

415

361

337

328

400

366

356

-

Secondfoot-days

5,356

11,546

11,393

135,398

9,470

11,021

12,056

9,934

54,489

48,120

11,353

5,592

2,641

192,971

May

385.

508

796

1,250

1,700

1,900

2,050

2,320

2,620

2,610

2,520

2,190

1,840

1,500

1,330

1,240

1,290

1,390

1,480

1,610

1,790

1,970

2,080

2,020

1,940

2,080

2,290

2,410

2,070

1,700

1,610

Maximum

342

396

455

1,710

365

520

508

530

2,620

2,570

944

496

160

2,620

June

1,560

1,520

1,600

1,760

1,540

1,530

1,620

2,180

2,570

2,170

1,730

1,680

1,390

1,280

1,270

1,360

1,670

1,72.'

1,690

1,840

2,080

1,680

1,600

1,390

1,340

1,260

1,290

1,260

1,320

1,220

Minimum

37

274

190

11

205

300

328

197

385

1,220

63

63

46

37

July

944

803 82'

843

793

674

623

54T

545

470

423

375

318

293

263

263

273

243

201 is-;

173

167

173

175

13i

12-

111

111

93

83

63

Aug.

65

63

63

71

108

101

95

86

124

258

342

241

209

178

178

182

160

153

128

114

95

483

496

300

225

197

182

153

163

182

197

Mean

173

385

368

371

305

394

389

331

1,758

1,604

366

180

88.0

529

Sept.

160

138

145

142

121

114

114

105

108

101

89

86

80

63

60

92

92

105

86

83

80

74

60

49

46

49

49

46

52

52

Runoff in 

acre-feet

10,620

22,900

22,600

268,600

18,780

21,860

23,910

19,700

108,100

95,440

22,520

11,090

5,240

382 , 800

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Dec. 31 to Feb. 25 (no gage-height re 

Feb. 3).
226 GREEN RIVER BASIN

Duchesne River near Randlett, Utah

Location.- Water-stage recorder, lat. 40°13', long. 109°47', in SE^SE^ fee. 17, T. 33., 

R. 2 E. Uinta meridian, a quarter of a mile downstream from Uinta River, 1-5- miles 

southeast of Randlett, and 6^ miles southeast of Fort Duchesne.

Drainage area.- 3,920 square miles.

Records available.- October 1942 to September 1947.

Extremes.- Maximum discharge during year, 4,270 second-feet June 9 (gage height, 5.39 

feet); jninimum, 59 second-feet Oct. 1.

1942-47: Maximum daily discharge, 7,000 second-feet June 27, 1944, based on records for Duchesne River at Myton and Uinta River at Fort Duchesne; minimum discharge, 

17 second-feet July 25, Aug. 11, 1946.

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

which are fair. Flow regulated by several reservoirs. Diversions atove station for 

irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

72

97

121

124

150

215

306

275

301

296

263

263

247

251

259

259

283

29,2

292

292

283

283

283

271

271

275

271

275

417

558

459

Nov.

428

428

400

412

440

453

446

503

604

537

490

524

558

604

634

565

510

537

580

604

604

530

611

755

611

484

573

627

604

588

-

Dec.

580

565

558

544

580

596

659

634

551

490

503

55ff

611

588

573

551

453

319

296

*348

484

480

480

490

490

500

500

380

380

270

215

Jan.

235

260

295

330

365

410

450

475

470

460

450

435

425

415

405

400

410

425

440

455

465

460

450

' 440

(*)

Feb.

440

440

440

*480

500

520

540

550

560

600

580

600

620

640

660

700

730

*750

780

740

720

760

820

870

890

800

680

600

-

_

-

Month

October. ...................................

November. ..................... . . . . . .

December. ..................................

Calendar year 1946 ......................

January. .......... ...................... .

February. ........................ ....... .

March ......................................

April. ........ ... .............. ... ....

May.............................. .........

June .......................................

July. ......... ............... ............

August ........ ........................ ...

September. .............. ........ .........

Water year 1946-47 .... ........... .....

Mar.

560

570

560

580

600

590

580

596

588

*596

755

668

588

627

642

544

642

727

684

634

580

573

565

580

517

465

446

440

471

459

465

Apr.

465

440

446

412

389

338

338

310

314

353

301

283

275

259

259

310

363

412

428

417

459

565

611

517

440

400

378

428

434

406

-

Secondfoot-days

8,304

16,244

15,326

163,857

12,905

18 , 010

17,892

11,760

72,316

79,840

16,454

12,377

5,965

287,393

May

406

484

746

1,250

1,750

2,110

2,460

3,110

3,760

3,540

3,280

2,960

2,420

1,860

1,610

1,490

1,540

1,720

1,900

2,140

2,580

2,870

2,990

2,860

2,620

2,910

3,160

3,610

3,270

2,510

2,400

Maximum

558

755

659

1,650

475

890

755

611

3,760

4,150

1,310

1,030

368

4,150

June

2,340

2,300

2,500

3,340

.2,750

2,590

2,580

3,230

4,150

3,520

3,060

3,360

2,610

2,430

2,340

2,300

2,660

2,840

2,620

2,740

3,590

3,090

2,690

2,340

2,260

2,080

2,020

1,930

1,9OO

1,680

Minimum

72

40C

21S

18

235

440

440

259

406

1,680

159

144

131

72

July

1,310

1,180

1,050

1,010

940

801

774

710

764

676

588

517

446

428

412

4OO

417

417

389

333

328

328

314

343

301

255

247

229

202

186

159

Aug.

144

144

164

173

271

301

271

271

288

490

668

551

459

378

358

389

368

324

255

205

218

757

1,030

710

551

490

453

428

428

406

434

Mean

268

541

494

449

416

643

577

392

2,333

2,661

531

399

199

787

Sept.

368

275

236

f215

f!98

f!82

186

182

198

198

198

205

198

189

189

176

198

222

251

240

218

215

186

167

156

150

144

131

144

150

Runoff in 

acre-feet

16,470

32,220

30,400

325,000

25,600

35,720

35,490

23,330

143,400

158,400

32,640

24,550

11,830

570,000

* Winter discharge measurement made on this day.

f Computed on basis of partly estimated gage-height record.

Note.- Stage-discharge relation affected by ice Dec. 22 to Mar. 6 (no gage-height record Jan. 23-
GREEN RIVER BASIN 227 

West Pork Duchesne River near Hanna, Utah

Location.- Water-stage recorder, lat. 40°27', long. 110°53', in SE£ sec. 27, T. IN., R. 

9 Wrf 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 tc March 1922, 

October 1922 to September 1923, October 1945 to September 1947.

Extremes.- Maximum discharge during year, 384 second-feet May 8 (gage height, 3.54 feet); 

minimum recorded, 7.1 second-feet Dec. 17.

1904, 1921-23, 1945-47: Maximum daily discharge, 534 second-feet June 12, 1923; 

minimum recorded, that of Dec. 17, 1946.

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

wnicn are fair. No diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

16

ZO

16

16

16

17

18

18

17

17

15

16

16

16

16

16

16

17

15

16

16

16

16

15

17

 17

18

23

Zl

15

16

Nov.

14

14

14

 15

16

16

18

18

16

15

17

18

18

16

14

14

15

16

16

*16

14

16

16

16

15

17

16

16

16

15

-

Dec.

15

14

15

17

16

16

16

15

12

14

15

16

15

15

15

11

b8

bio

*15

15

14

14

15

14

14

14

14

12

b9

blO

b!5

Jan.

b!3

b!3

' a!3

Feb.

> a!4

*16

14

15

14

_

-

-

Month

October ....................................

November ......................... ....... .

December. ............. ....................

Calendar year 1946 ......................

January. ................................. .

February .............. ... ................

March. ................ .... ...............

April. ..................... .............. .

May. .......................................

June ................................. .....

July. .............. . . ......... ........ .

August ................ ... ...............

September. ... i ......................... . .

Water year 1946 47 ................ . .

Mar.

15

15

16

15

15

15

16

16

16

16

16

15

15

16

16

17

18

ZO

ZO

Zl

Z2

Z3

Z3

ZO

16

18

16

19

ZO

zz

zz

Apr.

zo

zz

zz

Zl

19

19

18

19

ZO

19

ZO

18

ZZ

29

40

47

48

48

47

58

68

65

55

51

5Z

55

63

59

65

80

-

Secondfoot-days

5ZO

473

430

15,614

403

395

550

1,189

7,745

3,845

1,434

83Z

C44

18,410

May

105

140

193

Z51

Z70

Z6Z

304

349

343

309

Z51

215

200

198

200

Z36

260

284

290

307

323

323

298

279

Z65

262

249

Z23

190

183

183

Maximum

Z3

18

17

Z51

Z3

80

349

176

76

36

2Z

349

June

173

176

173

162

155

150

153

157

162

135

138

135

131

127

123

119

119

116

112

125

129

125

114

103

96

93

88

88

88

80

-

Minimum

1J

It

£

£

IE

1£

10E

8C

2S

2C

1£

£

July

73

73

70

63

63

6?

6?

61

53

55

52

43

47

48

52

43

44

43

403,-»

33

40

42

37

3*

32

32

30

29

29

30

Aug.

32

32

30

32

32

29

28

32

32

36

32

27

26

27

27

25

23

22

22

22

32

34

25

23

22

21

22

22

22

21

20

Mean

> 16.8

15.8

1 13.9

1 42.8

13

14.1

> 17.7

39.6

250

128

47.9

26.8

18.1

50.4

Sept.

19

19

19

18

18

18

18

18

18

19

18

18

18

17

17

18

22

21

21

20

18

18

18

17

17

17

16

16

16

17

Runoff in 

acre- feet

1,030

938

853

30,960

799

783

1,090

2,360

15,360

7,630

2,940

1,650

1,080

36,510

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for 

ear Mountain Home and Duchesne River near Tabiona. 

b Stage-discharge relation affected by ice.
GREEN RIVER BASIN

Wolf Creek above Rhodes Canyon, near Hanna, Utah

Location.- Water-stage recorder, lat. 40°28', long. 110°55', in NW-J- sec. 21, T. IN., R. 

9 W. Uinta meridian, l| miles upstream from Rhodes Canyon, 2^ miles upstream from 

mouth, and 5| miles northwest of Hanna.

Drainage area.- 9 square miles.

Records available.- October 1945 to September 1947.

Extremes.- Maximum discharge during year, 48 second-feet May 26 (gage height, 2.28 feet); 

minimum not determined.

1945-47: Maximum discharge, that of May 26, 1947; minimum not determined.

Remarks.- Records good-'except those for periods of no gage-height record, which are fair. 

No diversion above" station.

Discharge, in second-feet, water year October 1946 to September-1947

Day

1

2

3

4

5

6

T[

8

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

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

4.8

4.8

4.8

4.8

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.4

4.4

4.4

4.6

4.8

4.6

4.2

4.2

Nov.

4.2

4.2

4.1

4.2

4.2

4.2

4.4

4.4

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.1

4.1

4.2

4.2

4.2

4.1

4.0

4.0

4.0

4.0

-

Dec.

3.9

3.9

3.9

3.9

3.9

3.9

3.8

3.6

3.5

3.5

3.5

3.5

3.5

3.4

3.4

3.4

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

3.2

3.1

Jan.

3.1

3.1

3.1

3.1

3.1

3.1

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

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

Feb.

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

3.0

2.9

2.9

3.0

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

3.1

3.0

_

_

-

Moath

October ............................... ....

November . ..................................

December . ............. ....................

Calendar year 1946 .......................

January .................................. .

February ...................................

March. .....................................

April. .....................................

Hay

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......... ............

Mar.

3.0

3.0

3.0

3.0

3.2

Apr.

3.2

3.2

3.3

3.3

3.3

3.3

3.3

3.2

3.3

3.2

3.2

3.3

3.3

3.4

3.5

3.5

3.6

3.6

3.6

3.6

4.0

3.9

3.9

3.8

3.6

3.8

3.9

3.9

3.9

4.1

Secondfoot-days

146.0

125.2

107.0

2,371.8

93

82 .9

96 «0

106.0

806.1

645

405.6

267 . 7

225.7

3,106.8

May

4.8

5.9

7.4

17

25

28

32

37

36

32

26

21

18

17

17

19

22

25

30

33

36

36

35

37

36

37

32

28

25

2S

25

Maximum

5.2

4.4

3.9

22

3.1

3.1

4.1

37

25

20

9.6

8.5

37

June

25

24

23

22

22

21

21

23

25

23

23

23

22

21

19

19

20

21

20

23

23

22

21

21

20

20

20

20

19

19

Minimum

4.J

4.C

3.3

_

3.C

2! =

3.J

4.£ 191

9.6

8 C

e!e

.

July

20

18

19

18

17

17

17

16

15

14

14

13

13

13

12

12

12

12

11

11

11

11

11

11

10

10

9.9

9.9 9.6"

9.6

9.6

Aug.

9.6

9.6

9.2

9.2

9.2

9.2

8.8

8.8

8.8

9.2

8.8

8.5

8.5

8.5

8.3

8.3

8.0

8.0

8.3

8.3

9.2

9.2

8.5

8.5

8.3

8.0

8.3

8.3

8.3

8.0

8.0

Mean

4.71

4.17

3.45

6.50

3.02

2.96

3.10 * 53

oc "X

21 5

13.1

7.52

8.51

Sept.

8.0

8.0

8.0

7.7

7.7

8.3

8.5

8.5

8.0

7.6

.6

.6

.2

.2

.2

7.4

8.2

8.2

8.0

7.5

7.0

7.0

7.0

7.0

7.0

6.8

6.8

6.8

6.9

7.0

Runoff in 

acre-feet

290

248

212

4,710

136

164

190

210

1,600

1,280

304

531 *

448

6,160

Note.- No gage-height record Mar. 4-31, Sept. 8-3O; discharge computed on basis of weather records 

nd records for Rock Creek near Moutain Home and West Fork Duchesne River near Hinna.
GREEN RIVER BASIN 229

Rock Creek near Mountain Home, Utah

Location.- Water-stage recorder, lat. 40°29'30", long. 110 0 34'40", in SW£ sec. 9, T. 1

«., K. 6 W. Uinta meridian, at Lower Stillwater dam site "B", a third of a mile upstream 

from Corral Creek, 7 miles downstream from South Fork, and 12 miles northwest of 

Mountain Home. Altitude of gage, about 7,2£>0 feet.

Drainage area.- 149 square miles.

Records available.- November 1937 to September 1947.

Extremes.- Maximum discharge during year, 1,330 second-feet June 8 (gage height, 4.71 

feet); minimum, 18 second-feet Nov. 2.

1937-47: Maximum discharge observed, 1,790 second-feet June 4, 1938 (gage height, 

11.19 feet, site and datum then in use); minimum discharge, 7 second-fe^t Mar. 13, 

1940, Mar. 20, 1942 (probably caused by ice jams above station).

Remarks.- Records excellent. No diversion above station.

Discharge, in second-feet, water year October 1946 to September 19'7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

57

84

66

66

68

72

70

72

67

66

58

62

61

60

63

61

62

62

56

60

61

60

58

52

.59

56

68

97

93

73

67

Nov.

58

60

56

62

61

60

58

60

58

49

56

58

58

61

58

58

56

56

57

59

65

63

61

59

56

63

61

61

59

57

-

Dec.

56

53

54

54

55

56

57

54

49

48

53

55

56

56

54

46

36

38

48

54

50

50

50

48

49

50

51

47

38

45

46

Jan.

50

47

42

45

46

46

45

44

43

43

43

43

44

45

42

42

43

43

43

43

43

42

42

42

43

42

43

45

45

45

46

Feb.

47

47

47

45

45

45

44

42

41

42

43

42

44

43

42

42

42

42

41

40

41

42

42

42

41

39

42

41

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

Unv

September . .................................

Water year 1946-47 ......................

liar.

43

45

44

44

42

42

43

42

41

42

42

43

44 ' 44

44

47

51

54

56

56

57

60

62

56

51

56

50

55

55

58

56

Apr.

54

56

56

53

51

50

49

49

55

53

55

51

52

59

74

82

85

89

84

89

107

108

93

85

84

79

93

86

88

95

-

Secondfoot-days

1,556

53,565

1 525

2,711

73,178

May

126

200

306

419

524

611

728

902

960

843

770

622

538

504

453

476

524

553

628

710

830

934

940

882

995

1,060

1,140

960

758

740

746

Maximum

97

57

1,140

108

1,260

June

752

758

788

694

716

710

928

1,260

1,170

806

746

628

564

584

650

830

960

869

940

1,040

843

699

638

553

533

574

611

616

616

569

-

Minimum

52

36

_

49

73

36

July

543

553

579

569

528

490

494

471

440

423

394

355

330

309

306

313

293

277

258

249

240

234

226

213

200

188

183

176

171

169

169

Aug.

171

171

162

167

164

154

148

156

180

183

171

148

137

137

140

129

124

119

116

114

159

213

152

133

124

119

116

116

118

138

116

Mein

50.2

147

43 9

90.4

200

Sept.

108

104

104

100

102

102

95

94

98

104

97

93

88

84

84

82

98

95

101

94

86

82

82

80

79

78

74

73

74

76

-

Runoff in 

ao re-feet

3,090

106,200

20 520

8*920

5)380

145,200
230 GREEM RIVER BASIN

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 Springville, Utah. Datum 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 

ana Trail Hollow above diversion dams).

Records available.- October 1945 to September 1947. Records for January 1913 to September 

1945 in files of Salt Lake City district office of Geological Survey.

Extremes.- Maximum contents observed during year, 149,200 acre-feet July 1 (elevation,

 77552700 feet); minimum observed, 101,950 acre-feet Oct. 1 (elevation, 7,534.50 feet).

Remarks.- Reservoir is formed by a rock-faced earth-fill dam with concrete core-wall in

 sec. 3, T. 43., R. 11 W. Unita 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 tunnel, 13,000 acre-feet (elevation, 7,512.0 

feet). Dead storage prior to Jan. 1, 1934, approximately 28,000 acre-feet when outlet 

was lowered. 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 head waters of Currant Creek through Currait Creek feeder 

canal since 1936. Small transmountain diversions from tributaries through Daniels Pass 

to Provo River Basin. Contents given herein represent usable storage.

Monthly elevations and contents, water year October 1946 to September 1947

Date

Calendar year 1946. . . .

Feb. ..................

May ..................

July . . .

Aue

Oct. ..................

Water year 1946-47....

Elevation 

(feet)

-

7,535.10

-

Contents 

(acre-feet)

-

105,500

-

Change In contents 

during month 

(acre-feet)

'

-4,780

+3,550

a Interpolated.
GREEN RIVER BASIN 231

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 S., R. 10 W. Uinta meridian, half a mile downstream from Stinking Springs, 2£ miles 

upstream from Willow Creek,, and 3 miles south of Soldier Springs. Datum of gage is 

7,369.1 feet above mean sea level (levels by Bureau of Reclamation).

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 1947.

Extremes.- Maximum discharge during year, 165 second-feet Apr. 20 (gage height, 2.48 

feet); minimum, 8.8 second-feet Jan. 30.

1942-47: Maximum discharge, 453 second-feet Apr. 20, 1946; minimum recorded, that 

of Jan. 30, 1947.

Remarks.- Records good. 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 1946 to September 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.

19

19

19

18

18

18

18

19

19

19

18

18

19

19

19

19

18

18

18

18

18

18

18

17

17

17

18

19

21

19

17

Nov.

17

17

17

17

17

17

17

17

17

17

17

17

17

17

16

16

16

17

17

17

16

16

17

17

16

16

16

16

16

15

-

Dec.

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

14

14

14

14

14

14

14

14

14

14

14

14

14

Jan.

14

14

14

14

13

13

13

13

13

 a!3

» al2

12

12

12

12

12

Feb.

12

11

11

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

13

13

12

_

-

-

Month

October. ...................................

November. ........................ ..... ...

December ........ .................. .......

Calendar year 1946 ......................

January. ................................. .

February ........................... .......

March. .....................................

April. ..................................

May. ................................... ...

June .......................................

July. ......................... ........ ...

August .....................................

September . ...... ......................

Water year 1946 47 .................. ...

Mar.

12

13

13

12

12

13

13

13

13

13

13

13

13

13

13

13

14

14

14

16

17

17

17

16

16

15

15

16

17

19

19

Apr.

21

22

21

20

19

19

20

22

24

23

22

23

27

43

64

93

99

96

95

105

96

87

65

60

58

53

58

59

56

53

Secondfoot-days

569

498

452

9,653

394

336

447

1,523

1,414

1,207

898

733

596

9,067

May

50

48

48

47

46

45

45

45

46

50

54

53

55

48

48

45

43

42

43

42

42

42

43

43

42

42

42

45

44

43

43

Maximum

21

17

15

238

14

13

19

105

55

45

34

26

21

105

June

42

42

42

43

43

41

42

41

43

43

43

45

43

41

40

39

38

38

37

39

44

43

41

39

38

37

36

35

35

34

Minimum

17

15

14

-

11

12

19

42

34

25

21

19

-

July

34

32

32

32

31

31

31

31

32

31

30

29

29

29

29

29

29

29

29

29

28

29

28

26

26

26

26

26

25

25

25

Aug.

25

25

26

25

25

25

25

26

26

26

25

24

24

24

24

24

23

23

23

23

23

23

23

23

22

22

21

22

21

21

21

Mean

18.4

16.6

14.6

26.4

12.7

12.0

14.4

50.8

45.6

40.2

29.0

23.6

19.9

24.8

Sept.

20

21

20

20

21

20

20

20

20

20

20

20

20

20

20

20

21

20

21

20

20

20

19

19

19

19

19

19

19

19

Runoff in 

acre-feet

1,130

988

897

19,160

781

666

887

3,020

2,800

2,390

1,780

1,450

1,180

17,970

a No gage -height record; discharge interpolated.

852060 O - 49 - 16
232 GREEN RIVER BASIN

Strawberry River at Duchesne, Utah

Location.- Staff gage, lat. 40°10 I , long. 110°25', in SW^-NE^- sec. 2, T. 4 S., R. 5 W. 

tfinta meridian, at bridge three-quarters of a mile west of Duchesne and l| miles 

upstream from mouth.

Drainage area.- 1,040 "square miles (includes area tributary to Strawberry Reservoir). 

Records available.- June 1908to November- 1910, March 1914 to September 1947. 

Average discharge.- 33 years (1914-47), 159 second-feet.

Extremes.- Maximum discharge observed during year, 812 second-feet May 5 (gage height, 

3.84 feet); minimum observed, 43 second-feet Oct. 1.

1908-10, 1914-47: Maximum discharge observed, 3,230 second-feet May 27, 1922, 

from rating curve extended above 1,500 second-feet; minimum observed, 1 second-foot 

several days in July 1931.

Remarks.- Records fair. Gage read twice daily. Diversions above station for irrigation, 

tfater diverted from Strawberry Reservoir above station to Great Basin (see p. C30).

Discharge, in second-feet, water year October 1946 to September 1917

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

44

75

56

57

68

74

75

71

80

70

65

65

68

65

65

65

66

65

68

65

65

64

66

65

65

65

65

74

116

102

81

Nov.

80

81

75

80

78

82

80

88

91

84

73

75

81

87

90

75

74

82

85

90

81

73

85

91

81

73

80

75

84

80

-

Dec.

74

70

68

77

85

84

88

82

82

71

81

84

81

84

84

84

*65

73

75

}-

i "

Jan.

65

> 70

Feb.

} "

^ 80

82

84

88

92

96

100

110

120

*130

140

150

170

190

*200

160

*130

*100

90

_

_

-

Month

October ....................................

November . ........................ .........

December ...................................

Calendar year 1946 ......................

January. ................................. .

February. .................................

March. .....................................

April. ........................ ............

May........................................

June .......................................

July .......................................

August ............................ .......

September. ................... ............

Water year 1946-47 ... ..................

Mar.

86

84

84

84

90

82

94

104

104

*116

171

106

107

139

119

118

183

156

152

13?

126

119

137

152

123

118

111

116

123

123

125

Apr.

132

132

139

135

132

132

126

126

132

137

126

125

125

128

164

203

239

270

259

272

323

338

326

281

267

265

278

300

278

297

-

Secondfoot-clays

2,155

2,434

2,342

40,102

2,070

3,002

3,684

6,187

14,885

5,293

2 432

2 594

Z, 049

49,127

Hay

357

413

535

609

719

755

710

723

719

682

660

622

559

504

489

470

452

452

437

430

413

399

363

351

323

312

297

303

295

270

262

Maximum

116

91

88

546

200

183

338

755

246

112

177

118

755

June

246

234

236

246

226

212

194

192

188

194

186

190

186

177

171

152

145

139

132

128

158

177

201

164

154

145

137

132

132

119

-

Minimum

4

7

4

8

12

26

;Q

5

5

5

4

July

112

112

lOij

93

95

87

87

81

879^5

8'

73

74

73

71

70

83

a?

75

71

61

64

75

75

63

656-2

59

56

515

57

Aug.

55

55

55

61

84

69

80

71

119

91

91

85

81

73

91

80

78

84

70

66

75

177

109

94

84

82

81

90

81

98

84

Mean

1 69.5

5 81.1

75.5

L 110

66.8

107

2 119

5 206

2 480

3 176

5 78.5

5 83.7

3 68.3

1 135

Sept.

80

75

71

64

61

77

70

66

64

71

65

65

65

62

60

57

118

81

80

78

74

70

69

65

61

60

56

56

53

55

-

Runoff in 

acre- feet

4,270

4,830

4,650

79 , 550

4,110

5,950

7,310

12,270

29,520

10,500

4,820

5,150

4,060

97,440

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Dec. 18 to Mar. 14.
GREEN RIVER BASIN 233

Willow Creek near Soldier Springs, Utah

Location.- Water-stage recorder, lat. 40°07'05", long. 111°00'35", in SE^-NE^ sec. 21, T. 

4 £>., K. 10 W. Uinta meridian, 700 feet upstream from mouth and A\ iriles southeast of 

 Soldier Springs.

Drainage area.- 44 square miles.

Records available.- May 1943 to September 1947(discontinued).

Extremes.- Maximum discharge during year, 59 second-feet May 8 (gage height, 1.86 feet); 

no now at times.

1943-47: Maximum discharge, 192 second-feet July 30, 1943 (gage height, 2,35 feet), 

from rating curve extended above 65 second-feet; no flow during several months of each 

year.

Remarks.- Records good.

Discharge, in second-feet, water year October 1946 to. September 1947

Day

1

?.

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

2fl

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

October ................... ... . . ....

December ...................................

Calendar year 1946 ......................

March. ..................... ...............

April ......................................

May. .......................................

July. ........'.......................... ...

September ..................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

o

1,523.2

0.1

1,549.2

May

0

0

0

10

29

37

39

49

49

47

44

42

35

33

31

31

31

32

33

33

33

33

32

32

30

29

28

30

26

25

24

Maximum

0

49

2 6

.1

49

June

23

22

22

21

21

20

19

19

20

18

18

18

16

15

13

12

12

12

11

12

14

13

12

11

10

9.1

8.7

7.7

7.4

7.1

-

Minimum

o

o

0

0

Jily

6.8

6.1

5.8

5.5

5.3

5.3

5.3

5.3

7.4

7.4

6.5

5.8

5.3

5.3

5.1

4.9

4.4

4.2

3.8

3.4

3.4

4.0

3.2

3 .0

3.2

3.1

3.0

2.6

2.5

2.4

2.2

Aug.

2.6

2.4

1.9

1.7

1.5

1.8

1.9

1.8

1.8

1.8

1.4

1,7

1.4

1.5

1.9

1.4

1.2

1.0

.8

.7

1.0

1.0

.5

.4

.4

.2

.2

.1

.1

.4

.1

Mean

0

4.17

.003

4.24

Sept.

0.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0

o

0

0

0

o

0

0

-

Runoff in 

acre-feet

0

3,020

,2

3,080
234 GREET: RIVER BASIN

Currant Creek below Red Ledge Hollow, near Fruitland, Utat

Locatipn.- Water-stage recorder, lat. 40°20', long. 111°03', in NWjj sec. P, T. 23., R. 

1U W. Uinta meridian, 600 feet downstream from Red Ledge Hollow and 13^ miles northwest of Fruitland.

Drainage are a.- 48 square miles.

Records available.- October 1945 to September 1947.

Extremes.- Maximum discharge during year, 326 second-feet May 3 (gage height, 3.65 feet); 

minimum, 4.2' second-feet Oct. 1 (gage height, 1.41 feet).

1945-47: Maximum discharge, that of May 3, 1947; minimum, 3.1 secord-feet Sept.7-10, 

1946.

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 1946 to September 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.

5.5

7.4

5.2

5.4

5.4

5.9

6.3

7.0

7.0

6.5

5.7

5.7 

5.7

5.9

6.1

6.3

7.2

7.2

6.8

6.8

*6.8

6.8

6.8

6.8

7.2

7.4

9.2

20

16

11

b9.0

Nov.

b8.5

b7.6

b7.2

b7.6

b8.2

b8.2

8.2

8.8

bS.S

bS.O

b8.2

b8.2 

8.5

9.6

68.4

67.8

b8.4

b8.8

b9.4

9.9

b9.0

b9.5

9.9

ill

12

12

11

I bll

-

Dec.

all

Jan.

> alO

Feb.

alO

a9

-

-

Month

October. ................................

November. ........................ ........

December. ..................................

Calendar year 1946 ......................

January ............................. .... .

February ............... ..................

March. ................. ..................

April .................. ... ...........

May. ....................... ........... ...

June ............ ....... . . . . ... .......

July .... .................. . . ............

August. ....................................

September. ................................

Water year 1946-47 ...... ...............

Mar

^

' a9

> alO

J

} -

> a!3

I

V a!5

'

Apr.

> a!5

a!7

a20

( a25

a35

a55

a80

a70

a60

a55

aS2

a74

a80

a72 *69

69

82

90

83

ion 

129

Secondfoot-days

232.0

275 5

341

8 , 222 .1

310

267

356

1,497

4 297

1*298

'454.0

255.8

9,892.5

May

160

192

230

242

217

213

224

215

189

183

178

157 

141

127

127

124

121

116

111

106

102

96

92

88

85

83

86

83

72 

69

68

Maximum

20

12

200

129

242

63

23

16

13

242

June

63

60

60

55

54

50

49

53

55

49

54

51 

45

40

38

36

35

37

35

39

47

47

41

36

32

31

28

27

27 

24

-

Minimur

5 2

7.2

3.1

68

24

8.5

7.8

7.2

5.2

July

23

22

21

19

19

19

19

20

19

17

16

14 

14

16

17 '

16

14

13

12

11

11

12

13

11

10

9.9

9.6

9.2

9.2

8.5

9.6

Aug.

10

11

1011

9.9

9.2

9.6

11

11

13

10

8.8 

7.8

8.5

8.5

7.8

8.2

8.2

7.8

8.2

16

16

11

9.6

9.2

9.2

9.6

9.9

10 

10

9.2

Moan

7.48

9.18

11

22 5

10

9.5

11.5

49.9

139

43.3

14.6

9.98

8.53

27.1

Sept.

8.8

8.8

8.5

7.8

9.2

8.5

8.2

8.2

9.2

9.2

8.8

8.2 

7.8

7.2

7.2

7.2

13

11

11

8.8

8.2

7.8

7.8

8.2

7.8

7.6

7.6

7.6

7.8 

8.8

-

Runoff in 

acre-feet

460

546

676

16,300

615

530

706

2,970

8,520

2,570

900

613

507

19,610

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basts of 

stations.

b Stage-discharge relation affected by ice.

ather records and records for nearby
GREEN RIVER BASIN 235

Currant Creek near Fruitland, Utah

Location.- Water-stage recorder, lat. 40 0 12', long. 110°54', in SE£ sec. 21, T. 3 S., R. 

9 W. Uinta meridian, 200 feet downstream from Deep Creek, 250 feet downstream from 

bridge on U. S. Highway 40, and 3^ miles southwest of Fruitland.

Drainage area.- 142 square miles.

Records available.- January 1935 to September 1947.

Average discharge.- 12 years (1935-47), 45.8 second-feet.

Extremes.- Maximum discharge during year, 446 second-feet May 4, 5 (gage height, 3.39 feet); 

minimum recorded, 9.2 second-feet Mar. 6.

1935-47: Maximum discharge, 1,040 second-feet July 26, 1941 (gage height, 5.85 

feet), from rating curve extended above 425 second-feet; 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 doubtful 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 1946 to September 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.

20

25

23

22

22

24

25

26

26

25

24

23

23

23

23

24

25

25

24

24

24

24

24

24

24

25

27

39

42

32

28

Nov.

27

26

24

25

27

27

27

30

29

25

26

26

27

29

25

24

27

27

28

30

27

29

32

31

30

33

35

33

32

33

~

Dec.

32

34

31

34

36

36

36

32

29

28

30

32

31

31

30

30

20

19

24

27

26

27

28

27

28

29

29

25

20

24

25

Jan.

27

26

26

27

27

29

29

29

> a29

a27

27

26

25

23

27

Feb.

25

27

28

27

27

27

27

24

25

32

28

27

28

27

28

30

30

30

28

26

26

27

27

27

25

24

27

25

_

-

-

Month

October. ...................................

November . ........................ .........

December. ..................................

Calendar year 1946 ......................

January. .................................. .

February. ................... ..............

Maroh. .....................................

April. .....................................

May........................................

June .......................................

July..... ..................................

August ...................... ..............

September ................... ..............

Water year 1946-47 ......................

Mar.

25

25

26

26

25

24

26

26

27

32

27

27

29

27

29

39

40

a44

a44

a44

a42

a45

a47

a45

43

42

39

43

46

51

49

Apr.

46

48

49

46

43

41

39

40

44

46

51

48

50

68

97

116

110

95

74

87

114

114

93

86

88

91

110

97

110

134

-

Secondfoot-days

789

851

890

16,339

852

759

1,104

2 275

5^844

2 134

1^093

830

765

18,186

May

173

219

294

332

314

278

282

302

276

256

260

228

204

187

170

170

168

158

153

146

142

136

126

122

118

112

107

112

103

99

97

Maximum

42

35

36

264

32

51

134

332

9fi

47

38

32

332

June

96

92

91

91

86

83

78

76

82

79

82

80

78

69

66

63

58

56

57

60

74

75

70

69

60

58

55

51

51

48

-

Minimum

2C

24

1£

17

2 ,

24

24

3 C

97

48

24

16

23

16

July

47

45

43

42

41

41

42

42

43

40

38

36

35

35

39

39

37

34

32

31

30

35

33

30"9

7

7

7

5

4

4

Aug.

28

28

27

28

27

27

27

38

37

35

32

27

22

20

20

18

17

17

17

16

26

38

d31

d28

d28

28

28

29

30

29

27

M?an

25.5

28 .4

28.7

44.8

27 . 5

27 !l

35.6

189

71.1

35.3

26 .8

25.5

49.8

Sept.

25

25

24

24

24

25

24

24

24

26

26

25

25

34

23

23

27

31

32

29

27

27

27

27

26

25

24

24

24

E4

-

Runoff in 

acre- feet

1,560

1,690

1,770

32,410

1,690

1,510

2,190

4,510

11,590

4,230

2,170

1,650

1,520

36,080

a No gage-height record; discharge computed on basis of weather records and records for nearby 

stations.

d Doubtful gage-height record; discharge computed on basis of records for nearby stations.
GREEN RIVER BASIN

Water Hollow near Fruitland, Utah

Location.- Water-stage recorder, lat. 40°14', long. 110°59', between sees. 2 and 11, 

T. 3 S., R. 10 W. Uinta meridian, li miles upstream from mouth and 7\ miles northwest of Fruitland.

Drainage area.- 15 square miles.

Records available.- April 1946 to September 1947.

Extremes.- Maximum discharge during year, 18 second-feet Aug. 9 (gage height, 1.69 feet); 

minimum not determined.

1946-47: Maximum discharge, that of Aug. 9, 1947; minimum not determined.

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 1946 to September 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.

.3

.0

.5

.5

.5

.0

.0

.0

.7

.7

.0

.5

.7

.5

.5

.7

.7

.7

.5

.5

* .5

.3

.5

.3

.3

 .3

.5

.5

.5

.3

b4.2

Nov.

b4.1

b4.0

b3.9

b4.1

b4.1

b4.1

4.1

4.3

b4.2

b4.0

b4.1

b4.2

4.3

4.5

b4.3

b3.9

b4.0

b4.0

b4.1

4.1

b4.0

b4.1

4.3

4.7

b4.b

b4.3

4.3

 s

( b4.3

[

-

Dec.

b4.2

b4.0

b3.8

3.9

4.1

4.1

 a4.0

Jan.

 a3.5

Feb.

 a3.5

> aS.ii

-

_

-

Month

October. ...................................

November ......................... .........

December ................................. .

Calendar year 1946 .................... .

January ............................. ....

February .................. ...............

March. . ...................................

April. .................... .............. .

May. ( ... ..................................

June ... .................. ... ...........

July. ... ................. .......... .....

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

> a3.0

a3.5

*3.7

3.5

b3.9

3.9

3.7

3.5

3.3

Apr.

3.2

3.5

3.5

3.5

3.7

3.5

3.5

3.5

3.9

3.7

3.7

3.7

3.9

4.1

4.1

4.3

4.3

4.5

4.7

4.7

5.2

5.8

5.8

5.5

S.5

5.5

6.0

5.8

5.8

5.8

-

May

6.0

6.6

7.0

8.4

11

14

15

16

16

16

16

15

14

14

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

forays "«* j

143.7 5.5

125.5 4.7

124.1

108.5

9] .£

102.0 3.9

134.2 6.0

380.0 16

C86.3 11

204.3 7.3

177.6 8.8

135.8 4.7

2,013.5 16

June

11

11

11

10

10

10

10

10

10

10

10

10

10

10

9.6

9.6

9.2

9.2

9.2

9.6

10

9.6

9.6

9.2

8.8

8.0

8.0

8.0

8.0

7.7

Minimum

4.2

3.9'-

-i n

6.0

7.7

5.5

4.7

4.3

-

July

7.3

7.3

7.0

7.0

7.0

7.0

7.3

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

6.6

6.6

6.3

6.3

6.3

6.3

6.3

6.0

6.0

6.0

5.8

5.8

5.8

5.5

5.6

Aug.

6.0

E

E

E

.8

.8

>.8

5.8

5.8

E

I-

.8

.3

.8

a6.5

a6.0

aEa'

aEa'

aE

aE

aE

aE

.8

.5

.4

.2

.1

.0

.0

>.o

a5.4

a£a'

at

aE

.8

.4

.2

.6

a5.2

5.0

;

14

.0

.2

.0

.7

4.7

Mean

4.64

4.18

4.00

3.50

3 27

3]29

4.47

12 . 3

9 54

6 .59

5.73

4.53

5.52

Sept.

.5

.5

.5

.5

.5

.7

.5

.7

.7

.7

.5

.5

.5

.5

.3

.5

.7

.5

.5

.5

.5

.5

.5

.7

.5

.5

.3

.5

.5

4.5

-

Runoff in 

acre-feet

285

249

246

215

181

202

266

754

568

405

352

269

3,990

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records and records for Currant 

Creek stations.

b Stage-discharge relation affected by Ice.
GREEN RIVER BASIN 237

Lake Fork above Moon Lake, near Mountain Home, Utah

Location.- Water-stage recorder, lat. 400 36', long. 110°31', in NW£ sec. 1, T. 2 N., 

H. 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 1947. April 1933 to Septembe- 1934 at site 

'i\ miles upstream, published as West Fork of Lake Fork above Moon Lake, near Mountain 

Home.

Extremes.- Maximum discharge during year, 1,040 second-feet June 7 (gage height, 2.74 

1'eet); minimum not determined, occurred during period of no gage-height record.

1933-34, 1942-47: 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 

which are fair.

Discharge, in second-feet, water year October 1946 to September 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.

44

51

40

39

40

40

40

40

f41

40

f41

43

f43

f43

f42

43

43

42

43

f42

f42

42

41

41

f40

f40

42

46

46

*43

43

Nov.

b42

b41

b40

b40

f40

f40

40

40

f40

b39

b38

b38

39

40

b38

b37

b36

b36

b36

b35

b34

33

-

Dec.

33

Jan.

28

Feb.

26

I

-

Month

October. ...................................

November . ........................ .........

December . ..................................

Calendar year 1946 ......................

January. ............................ ......

February. ........................... ......

March ......................................

April ......................................

May........................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

' 27

Apr.

\-

>

> 40

'

42

45

46

47

*47

49

50

51

50

56

65

57

51

49

43

50

54

51

52

62

Secondfoot-days

1,306

1,106

1,023

31,134

868

728

837

1, 388

12, 889

12,616

6,949

3 442 1)931

45,083

May

89

136

206

291

329

381

438

634

614

476

381

317

294

283

263

276

302

321

350

409

504

575

582

575

660

712

673

515

419

414

404

Maximum

51

42

865

65

712

828

395

171

102

828

June

403

424

404

355

377

404

650

828

627

409

368

298

291

310

363

515

527

476

608

601

400

338

291

266

280

342

377

381

372

325

Minimum

39

_

-

_

89

266

115

75

44

-

July

323

359

395

377

329

294

329

298

283

269

253

240

228

216

225

228

211

195

187

180

175

170

161

150

140

128

124

119

117

115

119

Aug.

121

117

115

122

110

loo

97

124

140

153

126

110

loo

98

95

88

86

79

75

75

120

171

115

100

95

117

115

110

120

138

110

Mean

42.1

36.9

33

85.3

28

26

27

46.3

416

421

224

111

64.4

124

Sept.

102

95

91

88

85

84

78

74

78

77

68

62

57

53

52

51

72

65

66

56

52

50

50

49

48

46

44

44

45

49

-

Runoff in 

acre- feet

2,590

2,190

2,030

61,760

1,720

1,440

1,660

2,750

25,560

25 020

13^780

6,83O

3,830

89,400

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

f Computed from partly estimated gage-height record.

Hote. - No gage-height record Nov. 22 to Apr. 14; discharge computed on basi 

and records of nearby stations.

s of weather records
238 GREEN RIVER BASIN

Moon Lake Reservoir near Mountain Home, Utah

Location.- Mercury indicating gage, lat. 40°33'40", long. 110°29'30", in NE£ sec. 19, T. 

2 N., R. 5 W. Uinta meridian, at dam on Lake Fork, if miles downstream from Brown Duck 

Creek, 11 miles upstream from Yellowstone Creek, and 12^ 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 1947.

Extremes.- Maximum contents observed during year, 35,950 acre-feet June 23, July 5, 9-12 

(elevation, 8,137.20 feet); minimum not determined.

1938-47: 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 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 aire-feet. Total 

dead storage, 13,740 acre-feet. Figures given herein represent usable contents. Water 

is used for irrigation on lands 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 1946 to September 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.

a249

-

-

_

-

_

-

_

-

-

_

-

_

-

-

_

-

-

_

-

_

-

-

-

-

_

-

-

-

-

a945

Nov.

1,640

-

Dec.

1,770

-

_

_

2,130

_

_

_

-

2,470

_

_

_

_

2,860

_

_

-

_

3,120

_

_

3,240

_

-

.

-

_

-

-

3,890

Jan.

.

-

_

_

4,170

_

_

_

-

4,520

_

_

_

_

-

4,860

_

_

_

5,120

_

_

_

_

-

_

_

_

_

-

5,740

Feb.

_

_

_

6 , 040

_

_

_

_

6 , 280

_

_

_

_

6,580

.

_

_

_

-

.

6,950

_

_

-

_

7,280

_

-

Mar,

7,300

_

_

-

_

_

_

_

-

_

_

_

_

-

_

.

_

_

-

_

_

_

_

-

_

_

8,880

-

9,080

Apr.

_

_

_

9,380

_

_

_

_

9,820

.

_

_

10,100

10,220

10,150

10,120

9,940

9,790

9,530

9,300

9,180

9,000

8,730

8,390

7,950

7,570

7,140

6,740

6,250

-

May

5,980

5,710

5,600

5,600

6,020

6,370

6,910

8,080

9,260

10,360

11,240

11,830

12,420

12,660

12,910

13,160

13,300

13,470

13,690

14,030

14,760

15,980

16 , 90J3

17,830

18,940

20,030

21,410

22,390

23,050

23,650

24,390

June

24,600

25,070

25,620

26,030

26,420

26,700

27,180

_

29,370

29,910

30,280

30,560

30,720

30,860

31,010

31,380

32,120

32,500

33,360

34,230

35,070

35,340

35,720

35,800

35,880

35,880

35,880

35,950

35 , 800

35,650

-

July

35,840

35,860

35,860

35,860

35,9hO

35,860

35,860

35,8£0

35,950

35,950

35,950

35.9EO

35,650

35,140

34,760

34, SCO

34,040

33.8EO

33,460

33,020

32.5CO

31,900

31,340

30,7£0

30.0FO

29,540

28,820

28,220

27,510

27,040

26,450

Aug.

25,760

25-, 320

24,700

24,190

23,620

23,020

22,560

22,260

21,800

21,670

21,480

21,340

21,180

21,480

21,240

21,150

20,960

20,730

20,570

20,280

20,000

19,720

19,650

19,620

19,530

19,460

19,370

19,250

18,940

18,880

Sept.

18,780

18,440

18,200

_

17,020

_

_

15,720

15,280

14,790

14,360

13,940

-

12,990

12,500

12,040

11,620

11,120

10,700

10,200

9,960

9,500

9,060

8,620

8,150

7,660

7,220

6,780

-

a Ho gage-height record; contents Interpolated.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946....

July 31...... ...........

Water year 1946-47....

Elevation 

(feet)

-

-

Contents 

(acre-feet)

-

Q'nAfi

-

Change In contents 

during month 

(acre-feet)

+719

-9,260

+6,554
GREEN RIVER BASIN 239 

Lake Fork below Moon Lake, near Mountain Home, Utah

Location.- Water-stage recorder, lat. 40°33'30", long. 110°29'30", in E| sec. 19, T. 2 N., 

R. 5 W. Uinta meridian, 2,000 feet downstream from Moon Lake Dam, 2 miles downstream 

from Brown Duck Creek, and 12 miles northwest of Mountain Home.

Drainage area.- 110 square miles.

Records available.- April 1942 to September 1947. September 1921 to September 1934 

(fragmentary) at dam site 2,000 feet upstream, published as West Fork of Lake Fork 

near Mountain Home.

Extremes.- Maximum discharge during year, 801 second-feet (regulated) June 26 (gage height, 

3.32 feet); no flow Nov. 24 to Apr. 15 (gates closed).

1921-34, 1942-47: Maximum discharge recorded, 2,070 second-feet (regulated) June 

26, 1944 (gage height, 5.46 feet), from rating curve extended above 1,130 second-feet; 

no flow at times when reservoir gates are closed.

Remarks.- Records good. Flow regulated by Moon Lake Reservoir (see preceding page). No 

diversion above station.

Discharge, in seoond-feet, water year October 1946 to September 1947

Day

1

?

7,

4

5

6

7

8

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

47

49

49

49

49

49

42

35

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

32

32

32

32

32

Nov.

32

32

31

32

32

32

32

32

32

31

31

32

32

a33

a33

a33

a33

a34

a34

a34

a34

a34

a23

0

0

O

0

0

0

0

-

Dec. Jan. Feb.

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April. ....... ...... ......................

May. ......................................

July. ......................................

September. .................................

Water year 1946-47 .... .................

Mar. Apr.

0

0

O

0

0

O

0

O

0

O

0

O

O

0

O

111

137

143

168

196

196

175

193

220

275

275

271

271

267

267

Secondfoot-days

0

41,650.2

8,424

49,016

May

267

264

264

264

267

271

240

181

143

157

168

171

189

220

237

267

304

304

292

234

162

171

199

203

203

196

220

244

252

252

260

Maximum

0

430

317

506

June

264

267

267

271

279

287

292

296

296

296

279

275

275

275

275

279

283

283

213

271

283

279

287

383

331

350

359

506

485

335

-

Minimum

c

c

213

27 C

182

C

July

296

334

462

446

393

326

296

404

322

296

275

309

364

383

388

383

388

383

398

338

409

4?4

414

4?4

440

474

419

404

404

419

414

Aug.

404

383

383

378

354

335

300

283

279

252

237

226

216

216

223

216

196

193

193

223

271

256

157

124

124

145

196

196

196

190

177

M?an

0

114

243

281

134

Sept.

177

177

199

234

296

313

317

317

317

317

317

317

313

313

. 309

309

304

300

300

3OO

296

182

283

279

275

275

275

271

271

271

-

Runoff in 

acre-feet

0

82,600

16,710

97,220

a No gage-height record; 

and engineer's notes.

discharge interpolated on basis of 1 ciischa easurement made No
240 GREEN RIVER BASIN

Lake Fork near Upalco, Utah

Location.- Water-stage recorder, lat. 40°15'30", long. 110°13'00", in NE-J-NE^ sec. 4, T. 

3~~S77~R. 3 W. Uinta meridian, a quarter of a mile upstream from bridge on State 

Highway 86, lj 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 1947.

Extremes.- Maximum discharge during year, 465 second-feet June 9 (gage height, 3.33 feet); 

minimum, 0.4 second-foot May 3.

1942-47: Maximum discharge, 4,520 second-feet June 26, 1944 (gage height, 6.05 

feet), from rating curve extended above 1.400 second-feet; minimum daily, 0,1 secondfoot Apr. 16, May 22, 1943.

Remarks.- Records good except those for periods of ice effect, which are fair. Many

diversions above and below station for irrigation. Flow partly regulated by Moon Lake 

Reservoir.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

X

4

5

e

7

n

<t

10

11i?is

14

15

16

17in

19

20

21

22

?X

24

25

26

27

28

29

30

31

Oct.

2.4

7.0

3.5

4.2

12

37

24

26

24

12

4.8

2.7

3.5

4.6

5.2

6.7

9.9

9.1

8.1

8.4

6.4

3.1

4.0

5.8

6.7

7.0

7.8

13

40

27

8.7

Nov.

4.6

4.2

4.2

16

32

32

36

58

62

71

82

82

88

106

90

84

94

106

106

122

95

114

135

133

88

114

124

108

99

95

-

Dec.

94

88

*84

95

99

106

114

94

80

95

112

118

106

103

94

90

67

61

72

85

95

95

95

95

95

90

92

92

70

58

55

Jan.

60

63

67

72

76

80

85

89

89

88

87

85

83

80

79

78

( (*)75

Feb.

76

76

*76

78

80

82

84

87

90

93

96

100

103

106

110

112

*116

94

101

101

108

101

103

103

99

86

84

80

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

May........................................

September. .................................

Water year 1946-47 ......... ............

Mar.

90

80

75

74

76

78

76

72

72

84

112

95

108

116

92

81

112

110

95

76

75

87

88

71

62

68

65

68

61

56

50

Apr.

45

46

37

28

22

18

17

16

24

23

18

16

11

5.6

1.6

2.6

3.4

3.5

1.8

2.1

22

12

4.8

2.6

1.3

1.8

1.0

1.4

0.8

.7

-

Secondfoot-days

344.6

2,789

11,820.8

2 525

715 9

132.3

22,286.1

May

0.6

.5

.5

6.3

13

7.6

76

132

176

70

57

21

3.4

1.0

.8

.6

13

14

25

39

53

42

72

58

73

126

203

204

111

41

28

Maximum

40

118

135

14

373

June

22

35

67

99

72

88

141

368

373

201

216

208

135

118

112

150

231

198

225

275

228

184

207

204

264

234

299

285

321

223

-

Minimum

2.4

4.2

55

.8

50

1.5

.5

Jul'r

67

20

110

122

68

31

13

26

31

3.1

1.7

1.2

1.4

1.8

1.8

12

8.4

5.6

1.2

1.1

6.0

1.1

1.1

.8

.8

.8

.8

.8

.8

.8

.9

Aug.

1.2

1.1

.8

5.4

20

12

6.7

11

17

63

55

£4

19

9.9

15

16

14

12

16

12

11

172

121

32

17

8.4

7.2

5.4

3.1

3.1

4.6

Mean

11.1

90.0

32.4

4.41

61.1

Sept.

2.4

2.3

2.0

1.5

1.8

4.7

2.7

2.7

3.2

3.1

3.5

4.6

4.8

4.0

8.5

5.0

14

12

7.8

6.4

6.1

5.2

3.0

3.5

3.5

3.1

2.5

2.5

2.7

3.2

-

Runoff in 

acre- feet

684

5,530

23,450

4 730

262

44,210

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Dec. 18-24, Dec. 29 to Feb. 16 (no gage-height 

record Jan. 7-22, Feb. 7-16; discharge computed on basis of 2 discharge measuremerts, weather records, 

and records for stations on nearby streams).
GREEN RIVER BASIN 

Brown Duck Creek near Mountain Home, Utah

241

Location.- Water-stage recorder and Parshall flume, lat. 40°34', long. 110°31', In NE£ 

sec. _13, T. 2 N., R. 6 W. Uinta meridian, a quarter of a mile upstreair 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 tc September 1934, October 1942 to Septemler 1947.

Extremes.- Maximum discharge during year, 85 second-feet May 8 (gage height, 2.26 feet); 

minimum not determined, occurred during period of no gage-height record.

1933-34, 1942-47: Maximum discharge, 86 second-feet Aug. 8, 1943; minimum recorded, 

0.9 second-foot Oct. 29, 1942, but may have been less during period of no gage-height 

record.

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

j<Uow regulated by Brown Duck Lake Reservoir (usable contents, 3,720 acre-feet). Sometime during period July 12-14, 1946, a diversion above station of aboi't 0.7 secondfoot was begun for power purposes.

Discharge, in second-feet, water year October 1946 to September 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.

2.4

2.8

2.0

2.2

2.6

2.8

3.2

3.2

3.2

2.7

2.4

2.6

2.4

2.2

1.6

1.5

1.5

1.5

1.4

1.5

1.4

1.4

1.4

1.4

1,3

1.3

1.2

1.2

1.3

*al.3

al.3

Nov.

 al.3

-

Dec.

, al.3

Jan.

. al.2

Feb.

' al.u

.

_

-

Month

October ................... ................

November ......................... .........

December ................................. .

Calendar year 1946 ......................

January ....................................

February ...................... ............

March. .......................... ..........

April. .....................................

May. .......................................

June .........:................ ............

July. ......................................

August .....................................

September. . .............. ................

Water year 1946-47 ... ..................

Mar.

.

> al.O

Apr.

al.5

al.7

a2.1

a2.5

I a3.0

1

> a3.5

1

1

*a4.0

7.8

7.8

7.4

7.1

8.0

8.0

6.7

6.3

5.5

5.3

5.1

5.1

5.1

5.3

6.7

-

Secondfoot days

60.2

39.0

40.3

2,864.6

37.2

28 0

31 .'o

141.5

1,070.9

592

306.8

544.5

278.5

3,169.9

Hay

8.9

13

19

27

34

40

49

63

30

42

36

32

30

28

27

30

31

33

36

39

43

44

41

40

40

42

41

36

33

32

31

Maximum

3.2

,

42

53"fl O

30

30

48

24

63

June

30

29

29

26

26

24

25

25

25

22

23

21

19

18

18

18

18

18

17

16

18

18

17

15

14

13

13

12

12

11

-

Minimum

I.!

_

-

l.E

8.!

11

5~.2

2.7

-

Jul-'

11

11

1C

9.9

S.6

9.4

9.6

9.4

9.2

9.2

8.5

8.2

8.0

7.4

7.6

8.0

7.4

6.9

6.5

6.3

5.9

5.9

5.9

5.7

5.5

5.5

5.3

11

30

28

25

Aug.

21

17

14

14

14

13

15

16

19

26

40

41

41

48

45

34

18

9.8

6.7

5.9

9.8

10

7.8

6.7

5.7

5.3

5.9

6.9

8.0

10

10

Moan

1.94

1.3

1.3

7.85

1.2

1.0

1.0

4.72

34.5

19.7

9.90

17.6

9.28

8.68

Sept.

11

11

12

14

20

9.9

5.9

7.5

20

24

23

22

19

12

8.2

5.5

5.9

5.1

4.9

4.4

4.0

3.8

3.7

3.7

3.3

3.3

3.2

2.8

2.7

2.7

Runoff in 

acre-feet

119

77

80

5,690

74

56

61

281

2,120

1,170

609

1,080

552

6,280

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of 2 discharge measurements, weather records, 

and records for nearby stations.
242 GREEN RIVER BASIN 

Yellowstone Creek near Altonah, Utah

Location.- Water-stage recorder, lat. 40°31'00", long. 110 0 20'30", in SW^NE^ sec. 4, T. 

1 N., H. 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 mouth, 

and 8-5- miles northwest of Altonah.

Drainage area.- 131 square miles.

Records available.- October 1944 to September 1947.

Extremes.- Maximum discharge during year, 882 second-feet June 8 (gage height, 3.41 feet); 

minimum recorded, 39 second-feet Mar. 29.

1944~47rMaximum discharge, that of June 8, 1947; minimum recorded, 34 second-feet 

Apr. 13, 1945.

Remarks . - Records good except those for periods of ice effect or no 

wnicn are fair. Some diurnal fluctuation caused by power plant

age-height record, 

miles upstream.

Rating table, water year 1946-47, except periods of ice effect 

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

1.1

1.2

1.3 

1.5 82

1.7 

1.9 

2.1 

2.4

113

154

207

310

2.7 

3.0 

3.4

446

613

875

Discharge, In second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

fi

7

n

9

10

n

i?

33

14

15

16

17

18

19

20

M

2?

23

?4

25

26

27

28

29

30

31

Oct.

66

99

81

80

81

85

83

83

80

78

76

77

76

75

74

74

76

76

74

74

74

74

72

68

71

70

76

*92

99

83

82

Nov.

81

80

b78

76

72

71

71

72

70

70

b70

b69

68

71

b70

70

68

b70

b73

71

69 "j

> b69

)

69

66

66

-

Dec.

66

b65

*b67

65

65

65

65

b64

b59

b66

b68

b68

68

64

67

65

b57

b55

b63

b71

b66

b61

b58

b61

64

62

63

63

b59

b56

b56

Jan.

> b56

V 356

Feb.

> a54

' 352

_

.

-

Month

December. ...................................

Calendar year 1946 , ......................

April ......................................

September. .................................

Water year 1946-47 ......................

Mar.

.

I

) ( )

b51

b51

51

50

b50

b50

50

50

51

51

52

53

54

55

58

59

57

55

57

54

60

55

54

58

Apr.

58

60

60

*58

59

57

57

57

60

57

58

56

58

65

76

81

81

83

78

86

93

93

83

77

77

74

81

78

77

83

-

Secondfoot-days

2,429

2,128

1,962

38,416

1,736

1,478

1,643

2,121

14,553

14, 284

8,626

5,228

3,842

60,030

May

99

134

187

262

331

402

498

650

713

560

498

407

361

335

302

323

356

370

402

477

566

650

681

625

694

746

772

656

526

498

472

Maximum

99

81

71

565

_

_

60

93

772

820

446

235

152

820

June

498

509

520

451

462

446

572

820

752

520

482

407

374

379

384

482

584

488

601

681

477

407

374

339

327

366

402

417

402

361

-

Minimum

66

66

55

-

_

_

50

56

99

327

169

136

108

-

Jul-'

352

374

431

446

407

374

397

397

374

348

327

295

276

262

258

283

276

248

229

226

219

216

204

196

187

176

172

169

169

169

169

Aug.

172

172

169

187

187

169

164

169

199

199

182

166

156

156

159

154

174

154

145

141

162

235

193

185

176

159

145

139

136

174

150

Mean

78.4

70.9

63.3

105

56

52.8

53.0

70.7

469

476

278

169

128

164

Sept.

141

132

132

128

128

128

126

122

126

128

134

145

143

139

136

136

152

141

141

130

126

122

121

119

115

113

110

110

108

110

-

Runoff in 

acre feet

4,820

4,220

3,890

76,210

3,440

2,930

3,260

4,210

28,870

28,340

17,110

10,370

7,620

119,100

* 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 stations.

b Stage-discharge relation affected by ice.
GREEN RIVER BASIN 243

Ulnta River above Clover Creek, near Neola, Utah

Location.- Water-stage recorder, lat. 40°38', long. 110°10', In NW£ sec. 30, T. 3 N., R. 

2 W. Ulnta meridian, 2 miles upstream from Clover Creek and 15 miles northwest of 

Neola.

Drainage area.- 132 square miles.

Records available.- October 1945 to September 1947.

Extremes.- 1945-46: Maximum discharge during water year, 638 second-feet Apr. 26 (gage 

height, 3.40 feet); minimum determined, 24 second-feet Mar. 17, but may have been less 

during period of no gage-height record.

1946-47: Maximum discharge during water year, 1,040 second-feet May 8 (gage height, 

4.25 feet); minimum determined, 31 second-feet Feb. 20, Mar. 5.

Remarks.- Records excellent except those for periods of doubtful or no gage-height record, 

which are good. Flow partly regulated by several small mountain lakes and reservoirs 

including Fox Lake, Crescent Lake, Atwood Lake, and Chain Lake; total capacity, about 

3,600 acre-feet. No diversion above station.

Discharge, in second-feet, 1945-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

> a!09

69

Nov.

66

66

65

64

64

65

63

52

52

63

65

64

66

65

65

64

63

61

61

58

56

63

63

59

58

56

56

56

56

55

-

Dec.

55

53

54

55

55

53

53

51

46

48

51

50

48

47

46

46

46

46

45

45

46

47

48

50

51

51

50

50

50

50

51

Jan.

48

48

48

48

48

48

47

47

47

47

46

47

46

46

46

46

46

46

46

45

45

44

44

44

43

43

43

42

41

41

41

Feb.

41

41

40

40

40

40

40

» a39

_

_

-

Mar.

a38

38

38

38

38

38

38

36

38

38

40

38

38

37

38

37

40

43

44

42

42

42

Apr.

41

41

40

39

41

41

41

41

40

38

41

45

48

52

50

56

69

78

86

95

111

116

140

188

313

444

486

398

439

394

-

Hay

270

234

217

321

421

416

350

282

259

227

197

173

170

155

160

168

176

223

237

223

244

227

194

176

173

170

176

168

157

142

147

June

185

170

237

376

444

407

342

338

342

329

301

248

241

237

244

263

244

210

179

163

168

168

179

188

173

176

176

179

173

170

-

July

173

173

170

160

173

203

170

170

155

150

142

142

160

168

176

168

163

160

163

168

150

131

126

15F

16 F

15C

14C

13f

147

15C

15F

Aug.

138

136

129

122

120

126

124

113

111

109

107

120

126

138

136

131

120

111

107

103

111

120

152

136

131

140

142

136

126

118

111

Sept.

116

120

111

103

98

96

93

91

90

88

86

91

loo

90

91

93

93

91

90

86

82

79

76

74

74

73

72

70

69

68

-

a No gage-height record; discharge computed on basis of records for station near Neola and stations 

n nearby streams.
244 GREEN'RIVER BASIN

Discharge, In second-feet, of Uinta River above Clover Creek near Neola, Utah, 1945-47 Continued

1946-47

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

80

152

102

100

102

102

102

102

98

95

91

90

88

88

88

88

88

88

82

84

84

84

82

79

79

79

86

105

109

91

88

Nov.

86

79

85

85

80

78

72

72

68

64

69

70

69

72

69

68

68

65

64

63

65

77

75

72

69

65

63

61

61

60

-

Dec.

60

59

61

60

60

61

61

60

53

63

63

60

59

58

58

56

48

47

55

66

60

56

53

57

58

58

57

53

46

42

44

Jan.

47

45

45

48

48

47

46

45

44

44

45

45

45

45

45

45

45

45

45

45

45

46

46

46

46

46

46

46

46

46

46

Feb.

45

46

45

45

44

44

42

41

41

42

41

40

40

40

40

40

41

40

40

40

40

40

40

39

39

39

39

39

_

-

 Mar.

40

40

40

39

39

39

39

38

39

39

39

39

33

38

39

39

40

41

44

45

46

51

51

48

47

48

47

50

51

53

54

Apr.

54

54

55

51

51

48

47

47

48

46

46

45

47

59

70

74

76

78

74

82

91

90

80

76

73

72

74

73

73

82

-

Hay

103

160

248

338

439

573

764

853

868

673

578

477

412

367

334

358

407

458

496

573

653

703

688

628

693

780

770

648

520

501

491

June

515

539

549

472

472

463

628

837

749

544

525

449

412

403

435

564

663

613

698

729

554

482

439

398

407

449

472

477

458

416

-

Jvly

416

435

482

496

463

435

515

505

463

426

398

367

346

329

346

367

354

321

309

309

297

294

301

301

290

280

270

265

260

260

250

Aug.

260

270

265

278

267

244

237

248

252

259

241

234

230

225

225

225

230

210

200

195

220

270

220

205

195

185

180

180

175

200

170

Sept.

160

155

152

147

147

147

142

142

145

142

136

133

131

126

122

122

173

150

179

170

160

157

152

150

147

145

140

140

138

140

-

Note.- No gage-height record Nov. 21-24, Dec. 18 to Jan. 5; discharge computed on basis of weather 

records and records for station near Neola. Doubtful gage-height record July 25 to Aug. 3, Aug. 13 

to Sept. 2j discharge computed on basis of weather records and records for station near Neola.

Monthly discharge, in second-feet, 1945-47

Month

December. ...................................

Calendar year .......................

March. ......................................

Mav

July.. ......................................

September. .................................'.

Water year 1945-46 .......................

October 1946 ...............................

December ....................................

Calendar year 1946 .......................

March. ......................................

May.........................................

September . ..................................

Water year 1946-47 .......................

Secondfoot-days

3,339

1,830

1,537

-

4,912

2,654

39,986

2,876

2,114

1,752

40,022

4,390

67,434

Maximum

66

55

-

421

203

152

120

486

152

66

486

179

868

Minimum

_

52

45

-

_

142

163

126

103

68

-

79

60

42

_

38

122

38

Mean

108

61.0

49.6

-

39.3

38.7

135

221

242

158

124

88.5

110

92.8

70.5

56.5

110

43.2

534

146

185

Runoff in 

acre-feet

6,620

3,630

3,050

-

2,180

2,380

8,040

13,590

14,380

9,740

7,640

5,260

79,300

5,700

4,190

3,480

79,370

2,660

32,830

22,120

8,710

133,800
GREEN RIVER BASIN 245

Uinta River near Heola, Utah

Location.- Water-stage recorder, lat. 40°32'10", long. 110°03'40", in SE^SWi sec. 25, T. 

a n., K. 2 W. Uinta meridian, 800 feet downstream from bridge, three-quarters of a 

mile upstream from Pole Creek, and 7 miles north of Heola.

Drainage area.- 181 square miles.

Records available.- July 1921 to September 1927 (fragmentary), September 1929 to September 

1947.

Average discharge.- 19 years (1925-26, 1929-47), 173 second-feet.

Extremes.- Maximum discharge during year, 1,430 second-feet May 8 (gage height, 4.55 feet); 

minimum recorded, 36 second-feet Feb. 22 (gage height, 1.44 feet).

1929-47: 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 doubtful or no gage-height 

record, which are fair. Water diverted from Pole Creek and used at Uinta Power & Light 

Co.'s power plant, enters river 500 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 usec1 through power 

plant, wastes through spillway of forebay at penstock intake and enters river half a 

mile below station. Considerable spill occurs at times when one of tvo power units is 

not operating. Second unit operated only intermittently during this year. Summer flow 

slightly regulated by several small mountain lakes and reservoirs.

Discharge, in second-feet, water year October 1946 to September 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.

77

134

alls

allo

alls

alls

alls

allS

allO

alOS

aloO

100

100

98

100

86

98

98

88

98

100

90

93

80

88

87

100

143

162

115

101

Nov.

100

104

103

82

78

74

73

73

72

63

68

69

69

73

68

75

83

83

83

84

75

88

87

84

80

83

83

80

80

78

-

Dec.

78

 77

79

79

75

75

77

74

74

69

75

75

74

74

72

70

60

b57

66

77

73

64

61

64

67

67

67

66

55

b49

b50

Jan.

b52

b50

b55

b64

b69

75

»69

67

63

61

61

69

57

64

63

b59

b54

b55

b56

57

54

50

47

48

50

50

50

50

51

49

51

Feb.

b50

51

50

48

48

50

*49

49

46

43

46

46

46

46

46

46

46

46

43

43

43

43

41

41

40

43

43

43

_

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July......... ..............................

August ............................ ........

September. .................................

Water year 1946-47 ......................

Mar.

43

42

42

43

43

43

44

43

43

43

43

45

43

43

42

43

45

47

50

52

59

62

66

58

56

59

56

55

43

57

66

Apr.

64

64

66

61

58

57

56

54

58

54

54

52

53

60

74

79

82

87

83

91

104

112

103

91

87

83

87

86

84

88

Secondfoot-days

3 , 236

2 395

2^140

45,877

1,770

1 275

1, 519

2,232

19,675

18,189

7 995

4/940

77,605

May

107

168

262

389

508

638

900

1,120

1,140

838

729

566

497

450

402

416

460

508

548

663

764

838

838

702

764

860

956

838

638

590

578

Maximum

162

104

79

502

75

51

66

112

1,140

1,040

572 '335

194

1,140

June

590

620

663

57 S

566

536

663

1,040

980

676

644

554

514

508

497

584

743

670

715

868

656

548

508

445

412

455

497

502

497

460

Minimum

77

63

49

49

471

40

42

52

107

412

265

194

136

40

Jul-'

445

460

502

550

502

475

5*8

5T2

530

486

460

4?0

3f9

380

376

407

394

368

3*7

339

3^2

srs

K-Z

351

309

d290

d2?0

d27S

d270

(3270

d265

Ang.

d290

d285

d280

d310

335

302

292

296

299

313

289

270

259

256

256

253

259

240

227

220

232

299

262

232

222

208

203

199

194

217

196

Mean

104

79.8

69 .0

126

57.1

45.5

49.0

74.4

635

606

395

258

165

213

Sept.

181

172

168

164

162

164

162

160

164

162

156

150

147

141

139

136

183

170

194

192

183

176

174

172

168

164

160

16O

158

158

-

Runoff in 

acre feet

6,420

4,750

4,240

91,000

3,510

2,530

3,010

4,430

39,020

36,080

24, 280

15,860

9,800

153,900

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for Uinta River 

above Clover Creek.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed as explained In footnote a.
246 GREEN RIVER BASIN

Uinta River at Fort Duchesne, Utah

Location.- Water-stage recorder, lat 40"18 I , long. 109°51', in NW-q: sec. 23, T. 23., R.

1 E. Uinta 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 1947. September 1899 to Tecember 1904, 

April to June 1906, 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.- 10 years (1899-1902, 1903-10,1942-47), 169 ^econd-feet.

Extremes.- Maximum discharge during year, 1,390 second-feet May 9 (gage height, 3.39 

feet); minimum, 2.1 second-feet Oct. 1.

1899-1904, 1906-10, 1917-20, 1942-47: Maximum discharge, more then. 7,500 secondfeet in June 1917; no flow at times.

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

which are fair. Many diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

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.

2.2

4.6

5.4

2.8

3.3

2.8

2.7

6.0

9.6

12

14

14

14

13

13

14

17

18

19

16

15

15

14

14

15

15

14

17

40

53

36

Nov.

35

34

26

31

31

30

30

34

43

40

35

36

37

45

48

3?

35

45

51

62

66

62

75

106

69

*71

80

82

82

82

-

Dec

80

86

89

93

93

103

117

101

91

91

114

120

109

101

93

91

86

66

80

*80

80

80

70

75

80

80

80

75

70

65

60

Jan.

60

65

70

75

80

90

(*)

(*)

Feb.

(*)

95

(*)

100

*110

110

110

110

106

103

*103

_

-

Hcnth

October. ...................................

November. ........................ .........

December . ..................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April ......................................

May...... ..................................

June .......................................

July. ......................................

August .....................................

September. ...................... ...."......

Water year 1946-47 ................. ....

Mar.

109

109

103

106

101

109

103

112

109

114

117

106

103

106

106

86

112

112

106

96

91

89

77

60

51

40

35

35

43

32

31

Apr.

30

31

32

34

31

31

32

30

27

30

20

16

14

13

10

9.2

9.6

9.2

8.7

8.2

6.0

4.5

6.0

4.8

3.9

3.6

6.0

6.9

4.2

2.8

-

Secondfoot-days

451.4

1,540

2,699

12,756.9

2,690

2,752

2,709

474.6

14,481.9

19, 882

724.6

953.8

562

49,920.3

May

2.7

4.2

34

61

151

237

464

899

1,230

850

721

531

383

164

98

86

117

168

216

345

F49

774-

817

616

581

692

817

874

772

573

555

Maximum

53

106

120

120

110

117

34

1,230

1,240

101

71

30

1,240

June

' 523

523

685

839

682

599

643

1,010

1,240

877

820

802

643

608

555

59O

726

774

721

780

957

752

663

539

484

484

462

367

314

220

-

Minimum

2.'

26

60

2.'

60

31

2.£ 2.-

220

6.S

6.C

12

2.2

July

1C1

a£5

a? 7

a31

a35

a30

20

El

54

32

26

19

16

16

14

12

16

16

16

15

17

16

14

18

17

17

15

11

12

8.7

6.9

Aug.

7.4

6.0

7.4

10

25

22

21

20

25

28

53

36

34

27

27

28

30

26

20

18

25

71

67

56

43

40

39

37

36

34

35

Mean

! 14.6

51.3

87.1

35.0

86.8

98.3

87.4

467"

663

23.4

3O.8

18.7

137

Sept.

30

24

16

12

12

14

14

13

14

17

17

15

15

15

16

16

18

23

26

30

26

25

23

19

21

19

18

18

16

20

-

Runoff in 

acre- feet

895

3,050

5,350

25,300

5,340

5,460

5,370

941

28,720

39,440

1,440

1,890

1,110

99,010

* 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.

Note.- Stage-discharge relation affected by ice Dec. 20 to Feb. 25 (no gage-height record Jan. 4- 

24; discharge computed same as explained in footnote a.
GREEN RIVER BASIN 247

Whiterocks River above Paradise Creek, near Whiterocks, Utah

Location .- Water-stage recorder, lat. 40°38', long. 109°58', in Sw£ sec. 23, T. 3 N., 

H. 1 W. Uinta meridian, 2f miles upstream from Paradise Creek and 12 miles northwest 

of Whiterocks.

Records available.- October 1945 to September 1947 .

Extremes.- 1945-46: Maximum discharge recorded daring year, 484 second-feet May 5 (gage 

height , 3.23 feet); minimum not determined, occurred during period of no gage-height 

record.

1946-47: Maximum discharge during year, 1,100 second-feet May 8 (gage height, 

3.95 feet); minimum daily, 28 second-feet Feb. 27.

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

which are fair. Ho diversion above station.

Rating table, water years 1945-46, 1946-47, except periods of lee e

(gage height. In feet, and discharge, In second -feet) 

(Shifting-control method used Apr. 16-27, Sept. 19-30, 1947)

1.2 

1.4 

1.6

2.0 96

2.2 128

2.5 192

2.8 283

3.1 412

3.5 668

3.8 940

Discharge, in second-feet, 1945-47 

1945-46

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

78

74

72

70

68

SS

64

63

GO

56

56

68

64

70

60

61

61

57

52

51

49

48

46

47

47

47

47

45

44

46

47

Nov.

45

43

39

40

39

40

38

37

*b35

b37

b40

b38

b40

b38

b35

\

^ b34

1

j

b35

b35

b35

b33

b32

b31

b31

31

31

31

-

Dec.

31

b32

b34

b35

30

30

30

28

25

23

26

b27

b27

b27

b27

b27

b27

b27

27

27

'

' 10

Jan.

» 30

.

, 25

Feb.

 23

« 24

_

_

-

Mar.

, 24

Apr.

24

24

24

23

23

24

25

25

25

25

25

26

28

30

30

35

40

50

55

60

70

80

100

190

290

350

320

270

290

280

-

Hay

200

164

178

259

330

310

243

216

216

187

155

145

136

121

128

141

138

147

160

151

178

180

158

149

147

145

141

134

128

114

106

June

111

114

138

197

237

240

208

187

180

173

162

147

136

130

125

130

136

123

111

102

96

92

88

82

78

76

80

99

98

98

-

July

96

95

95

93

96

100

99

96

88

85

83

85

86

85

86

82

80

80

80

81

77

76

74

81

85

85

62

59

62

61

66

Aug.

60

68

61

56

55

57

58

52

50

54

53

63

68

72

72

72

68

64

62

60

67

71

104

92

102

125

128

125

105

95

89

Sept.

90

89

82

78

75

72

72

71

70

68

67

67

70

66

64

67

68

74

74

69

63

58

55

54

53

51

51

50

49

48

-

* Vilntpr discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Ncte^- No gage-height record Oct. 1-11, Dec. 19 to May 1; 

rpcords and records for nearby stations.

852060 O - 49 - 17

discharge computed on basis of weather
GREEN RIVER BASIN

Discharge, in second-feet, of Whiterocks River abo-v 

near Whiterocks, Utah, 1945-47--Contin

Paradise Creek,

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

61

125

82

77

80

77

76

71

69

68

*66

64

63

61

61

61

66

66

61

60

59

59

58

54

55

55

58

78

85

77

*b71

Nov.

b64

b60

b67

b65

58

56

55

54

53

b50

bSO

58

50

55

b53

b50

b51

51

47

47

b43

b54

b52

b52

b52

b54

51

46

45

45

-

Dec.

46

47

47

43

44

44

45

b42

b40

b41

b43

b44

45

43

43

42

41

41

41

41

41

43

43

44

44

44

41

39

37

36

36

Jan.

, 36

38

41

39

37

Feb.

36

35

33

33

33

31

29

28

29

_

_

-

Mar,

31

33

35

36

37

39

41

40

38

38

40

38

40

41

43

44

Apr.

41

43

44

40

.41

41

39

39

40

40

38

39

40

43

47

*52

53

57

54

63

72

70

63

58

55

54

59

56

57

66

Hay

90

143

229

330

417

593

795

900

804

566

466

378

338

306

280

330

398

444

502

660

768

768

676

573

600

653

668

60S

466

455

455

June

423

444

502

439

402

398

496

701

616

444

423

369

334

313

302

347

412

402

412

526

466

383

338

298

283

294

2 98

298

302

280

July

259

263

266

280

266

252

338

364

302

259

237

216

203

192

192

197

197

187

173

173

173

168

175

180

153

139

136

130

130

126

162

Aug.

162

158

153

166

164

155

153

164

158

205

187

168

162

158

160

158

155

141

134

130

141

190

164

145

139

128

118

114

106

123

110

Sept.

100

98

93

90

89

89

86

86

93

88

82

80

78

75

74

72

130

118

118

92

85

81

80

82

77

76

74

71

70

71

-

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 16 to Apr. 15; discharge computed on basis 

nd records for nearby stations.

eather records

Monthly discharge, in second-feet, 1945-47

Month

December ....................................

Calendar year .......................

Hay . . . ...

September ...................................

Water year 1945-46 .......................

December. ...................................

Calendar year 1946 .......................

Hay. .......................................

September. .................................

Water year 1946-47 ......................

Secondfoot-days

897

n 559

n 328

1,985

24,996

1,311

26,269

2,598

51,009

Maximum

78

35

350

90

350

47

350

130

9OO

Minimum

23

50

48

.

54

36

.

28

70

28

M)an

28.9

.

23 4

1 32

82 5

66.2

68.5

42.3

72.0

34 8

86.6

140

Runoff in 

acre-feet

3 540

1,780

.

3,940

49,590

2,600

52,110

" 290

9,260

5,150

101,200
GREEN RIVER BASIN 

Whiterocks River near Whiterocks, Utah

249

Location.- Water-stage recorder, lat. 40°34', long. 109°56', in Sw£ sec. 18, T. 2 N., R. 

1 E. Uinta meridian, 25 feet downstream from abandoned bridge, three-quarters of a 

mile upstream from heading of United States Whiterocks Canal, and 6| miles north of 

Whiterocks.

Drainage area.- 115 square miles.

Records available.- August 1921 to September 1928, February 1930 to September 1947. 

September isay 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 White - 

rocks Canal and above that of Farm Creek Canal (records equivalent if flow of Whiterooks Canal is included).

Average discharge.- 23 years (1899-1903, Iy08-10, 1930-47), 121 second-feet.

Extremes^- Maximum discharge during year, 1,130 second-feet May 8 (gage height, 3.94 

reetlT minimum determined, 24 second-feet Feb. 21, but may have been less during 

periods of ice effect.

1921-28, 1930-47: Maximum discharge, 2,750 second-feet June 21, 1922, from rating 

curve extended above 1,700 second-feet; minimum determined, 10 second-feet Dec. 5 1933, 

but may have been less during periods of ice effect.

Remarks - Rec.ords good except those for periods of ice effect, which are fair. Flow 

siigntly regulated by small mountain lakes. One diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

53

115

78

70

76

74

72

69

65

65

63

63

63

61

61

62

64

66

61

61

61

61

60

57

59

59

70

96

113

83

78

Nov.

71

64

72

70

65

64

62

61

58

53

67

64

58

61

59

56

57

57

54

54

49

66

60

55

54

59

55

53

52

52

~

Dec.

51

*50

51

51

51

52

53

49

44

b45

b47

b49

50

51

49

47

45

\

1

\ b45

\ b47

b47

b49

b49

49

46

43

b41

b40

b40

Jan.

(*)

' b4u

b44

44

44

43

b42

42

Feb.

b40

38

37

37

*37

35

35

35

b35

b35

35

35

35

35

35

35

35

35

35

35

35

b35

35

35

35

b33

b32

b33

_

-

-

Month

October. ............ ......................

November ......................... .........

December .............................. ....

Calendar year 1946 ...................

January. .................................

February ....:........................ ....

March. ...... ..............................

April. .....................................

May. .......................................

June .................. ........ ...........

July.. ............................... .....

August ..................................

September ................... ...... .......

Water year 1946-47 ... . ...............

Mar.

b34

b35

b35

*35

35

35

35

35

34

34

34

34

34

35

35

35

38

40

40

42

43

46

47

42

41

45

42

45

45

48

48

Apr.

45

47

48

44

45

44

43

42

45

44

42

43

46

55

61

63

66

67

67

77

84

86

79

72

71

71

75

72

74

84

-

Secondfoot-days

2,159

1,782

1,466

28, 863

1,275

1,206

if 802

16,717

lH, 967

7,511

5,390

2,772

56,034

May

115

192

287

388

456

583

716

892

876

623

546

452

413

388

369

400

448

490

540

668

770

756

697

600

606

653

684

635

509

485

480

Maximum

115

72

53

40

48

892

653

384

£59

138

892

June

452

470

546

475

443

417

490

653

618

461

443

404

380

369

357

396

434

430

434

551

509

425

384

350

361

354

350

346

343

322

-

Minimum

53

49

40

32

34

42

115

154

113

77

32

July

306

309

315

322

303

303

373

384

329

296

273

253

235

225

227

232

232

208

199

208

199

196

225

196

177

166

160

156

154

160

190

Aug.

188

183

179

201

208

199

199

205

199

259

220

199

181

183

185

175

166

154

145

145

181

217

173

160

145

136

125

120

113

134

113

Mean

69 . 6

47 3

79.1

41.1

35 2

2Q° g

6oll

432

242

174

9^.4

154

Sept.

106

101

98

92

92

92

89

91

100

94

88

87

t)6

80

79

78

138

125

127

100

91

88

87

88

84

80

79

77

77

78

-

Runoff in 

acre- feet

4,280

3,530

2,910

57,240

2, 530

1,960 

2,390

3,570 

33,160

25 720

14,9OO

10,690

5,500

111,100

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
GREEN RIVER BASIN

Paradise Creek near Whiterocks, Utah

Location.- Water-stage recorder, lat. 40°37', long. 109 0 56', in NE^ sec. 36, T. 3 N., 

R. 1 W. Uinta meridian, 1,000 feet upstream from mouth and 10 miles no~th of Whiterocks.

Drainage area.- About 10 square miles.

Records available.- April 1946 to September 1947.

Extremes.- Maximum discharge during year, 109 second-feet May 8 (gage height, 2.56 

feet); minimum, 0.5 second-foot (gage height, 0.83 foot).

1946-47: Maximum discharge, that of May 8, 1947; no flow Aug. 17-2T, 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 1946 to September 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.

0.8

3.0

1.9

1.8

2.0

2.0

1.9

1.9

1.5

1.4

*1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.2

1.1

1.1

1.1

1.0

.9

.8

1.0

1.0

1.3

bl.4

bl.6

bl.4

*bl.2

Nov.

1.2

 1.1

-

Dec.

> 1.1

. 1.0

Jan.

> l-.O

Feb.

> 0.9

_

_

-

Month

October ....................................

November ...................................

December ...................................

Calendar year ......................

January. ................................. .

February. ..................................

March..... .................................

April. .....................................

May ........................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

.

> 0.9

j

1.0

1.1

1.1

> 1.2

Apr.

. 1.2

1.3

1.5

1.7

2.0

*2.2

2.4

3.0

3.4

4.7

5.9

5.9

5.4

5.2

5.2

4.9

5.2

5.2

5.2

5.2

Secondfoot-days

41.5

34.5

32.5

.

31.0

25.2

31.7

88.7

1,293.9

718

309.6

230.0

42.4

2,879.0

May

7.9

19

34

50

51

57

70

76

58

54

48

37

34

37

43

44

44

44

47

51

51

44

37

33

34

35

33

36

30

28

27

Maximum

3.0

-

_

76 5.9'

33

15

25

1.9

76

June

26

24

28

28

25

22

21

21

20

18

19

24

28

28

28

26

26

26

24

26

33

28

26

24

23

24

20

18

18

16

Minimum

o.a

-

_

7.9

16

5.6

1.6

1.2

.8

July

15

15

14

13

13

12

14

13

12

12

11

10

9.8

9.3

9.3

9.8

10

9.3

8.9

8.9

8.9

8.9

8.9

8.9

7.9

7.2

6.6

5.9

5.9

5.6

5.6

Aug.

5.4

4.9

4.7

13

23

23

23

24

23

25

15

3.8

3.0

2.8

2.6

2.5

2.1

2.0

1.8

1.6

1.9

4.5

2.9

2.4

2.1

1.9

1.7

1.6

1.6

1.6

1.6

Ifoan

1.34

1.15

1.05

_

1.0

.9

1.02

2.96

41.7

23.9

9.99

7.42

1.41

7.89

Sept.

1.4

1.4

1.4

1.3

1.3

1.3

1.2

1.3

1.5

1.5

1.4

1.3

1.2

1.2

1.2

1.2

1.8

1.6

1.5

1.4

1.3

1.3

1.3

1.4

1.4

1.5

1.6

1.6

1.7

1.9

Runoff in 

acre-feet

82

68

64

_

61

50

63

176

2,570

1,420

614

456

84

5,710

* Winter discharge measurement made on this day. 

b Stage-discharge relation effected by loe.

Note.- No gage-height record Nov. 1 to Apr. 15; discharge computed on basis of weather records and 

records for Whiterocks River near Whiterocks.
GREEN RIVER BASIN 251

White River near Meeker, Colo.

Location.- Hater-stage recorder, lat. 40°02', long. 107°52', in sec. 30, T. IN., R. 93 

w., 1 mile upstream from Curtis Creek and 3j miles east of Meeker.

Drainage area.- 762 square miles.

Kecoras available.- May 1901 to October 1906, May 1910 to November 1913 (at site 2j miles 

aownstream), and October 1933 to September 1947 in reports of Geological Survey. May 

1901 to October 1906 and May 1910 to September 1947 in reports of State engineer.

Average discharge.- 42 years, 636 second-feet.

jsxcremes.- Maximum discharge during year, 3,590 second-feet May 9 (gage height, 3.78 

reet); minimum daily, 188 second-feet Jan. 16.

1901-6, 1910-47: Maximum daily discharge, 6,070 second-feet June 16, 1921; minimum 

daily, 112 secpnd-feet July 17, 1934.

Remarks.- Records'excellent above 500 second-feet and good below, except those for periods 

or no gage-height record, which are fair. Diversions above station for irrigation.

Rating tables, water year 1946-47, except period of lee effect

(gage height. In feet, and discharge, In second-feet) 

(Shifting-control method used Oct. 2 to Hov. 12, Dec. IT31, Mar. 24 to Apr. 21, Aug. 29 to Sept. 3o)

Oct. 1 to Dec. 31 Jan. 1 to Sept. 30

0.9 196 0.8 188 2.1 870

1.1 243 1.1 ;

1.2 270 1.2 !

1.3 310 1.4 :

>60 2.5 1,250

>95 3.0 1,860

595 3.3 2,400

1.6 480 1.8 650 3.7 3,380

Discharge, in second-feet, water year October 1946 to September 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.

256

343

450

398

420

387

414

392

382

392

365

370

382

365

365

370

432

409

387

382

387

387

3BZ

387

382

376

370

376

432

432

404

Nov.

343

360

316

343

360

332

338

365

354

290

306

310

326

332

338

310

294

302

310

326

310

316

316

343

298

286

343

321

321

310

~

Dec.

298

310

286

302

321

310

326

321

302

262

298

326

310

306

298

294

259

230

262

310

286

298

321

302

*302

321

338

316

262

259

214

Jan.

b240

b260

274

270

281

313

318

318

300

304

318

a315

a310

a280

a220

*188

227

281

288

288

304

270

278

322

322

281

Z70

295

300

247

281

Feb.

274

288

318

322

292

362

270

250

247

292

313

274

313

304

*270

322

331

318

331

288

257

260

267

292

a288

a290

a292

a264

.

-

-

Month

October. .................. ................

Novembe r ......................... .........

Decembe r ...................... ............

Calendar year 1946 ......................

January. ................................. .

February ................................

March. .....................................

April .............. .......... ....... .

May. ........... . . .......................

June ............... ........... ...........

July ............... ... . . ........ ......

August ............................ ........

September. . . ..................... ........

Water year 1946-47 ......................

Mar.

260

318

331

336

304

284

313

318

304

288

308

304

284

304

*300

300

322

390

481

520

520

559

618

488

384

368

384

395

425

462

455

Apr.

Secondfoot-days

11,976

9,719

9,150

181,285

8 1 763

8, 189

11,627

15,710

77,780

64,670

32, 820

16, 903

11,864

279,171

431

419

425

431

413

384

378

362

362

373

378

362

356

373

462

481

455

443

449

449

592

915

942

783

699

650

755

706

727

755

-

May

1,130

1,610

2,160

2,690

3,070

3,120

3,170

3,220

3,380

3,350

3,300

2,810

2,550

2,360

2,490

2,400

2,320

2,400

2,280

2,220

2,340

2,580

2,740

2,470

2,360

2,530

2,440

2,620

2,130

1,760

1,780

Maximum

450

365

338

2,160

322

362

618

942

3,380

3,220

1,970

664

494

3,380

June

1,830

1,880

2,110

2,400

2,220

1,910

2,220

2,840

3,220

2,720

2,380

2,130

1,720

1,610

1,560

1,680

1,970

2,060

2,110

2,340

3,090

2,760

E.110

1,830

1,760

1,800

1,990

2,110

2,180

2,130

-

Minimum

256

286

214

214

18f

247

26C

356

1 13C

l',56C

604

437

351

188

July

1,970

1,800

1,760

1,680

1,620

1,530

1,430

1,350

1,430

1,300

1,160

1,080

996

951

924

924

879

854

879

755

748

762

762

734

699

664

650

644

644

637

604

Aug.

592

c

c

£

72

52

59

598

592

c

E

=

72

72

46

598

598

6

6

6

24

64

44

611

546

C

E

I

40

33

14

500

500

c

;

c

07

07

07

500

494

4

c

4

4

81

26

68

49

437

Mean

386

324

295

497

283

292

375

524

2,509

2,156

1,059

545

395

765

Sept.

419

413

401

407

395

425

425

395

401

462

494

431

407

390

384

373

384

395

384

378

384

378

373

373

378

378

362

362

362

351

-

Runoff in 

acre- feet

23,7 50

19,280

18,150

359,600

17, 380

16,240

23^060

31,160

154,300

65 ! 100

33,530

23,530

553,800

* Winter discharge measurement made on this day.

a Ho gage-height record (stage-discharge relation affected by ice during part of period); 

computed on basis of weather records.

b Stage-discharge relation affected by ice.
252 GREEN RIVER BASIN

White River near Watson, Utah

Location.- Water-stage recorder, lat. 39°58', long. 109°10', in sec. 2, T. 10 S., R. 24 

E. Salt Lake meridian, just downstream from Evacuation Creek and 7 miles north of 

Watson. Datim of gage is 4,949.78 feet above mean sea level, datum of 1929.

Drainage area.- 4,020 square miles.

Records available.- April to October 1906 (published as White River near Dragon) and

October lyaa to September 1947 in reports of Geological Survey. April 1923 to September 1947 in reports of State engineer of Colorado.

Average discharge.- 24 years (1923-47), 740 second-feet.

Extremes.- Maximum discharge during year»r 6,200 second-feet Aug. 12 (gage height, 5.67 

reet) , from rating curve extended above 2,700 second-feet; minimum daily, 245 secondfeet Jan. 16.

1906, 1923-47: Maximum daily discharge, 8,160 second-feet July 15, 1929; minimum 

discharge, 52 second-feet July 19, 20, 1934.

Remarks.- Records excellent except those for periods of ice effect, which are fair. 

Diversions above station for irrigation.

Rating tables, water year 1946-47, except period of ice effect

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

(Shifting-control method used Oct. 1, May 15 to June 9)

Oct. 1 to May 31 June 1 to Sept. 30

0.6 245 1.9 990 0.7 360 1.8 1,110 

1.0 425 2.5 1,680 1.0 530 2.6 1,960 

1.6 750 3.7 3,220 1.4 790 3.4 2,990

Discharge, in second-feet, water year October 1946 to September 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.

316 

608 

485 

445 

580

624 

619 

455 

435 

415

415 

410 

395 

405 

400

400 

560 

440 

445 

420

400 

390 

390 

390 

390

390 

385 

380 

445 

586 

490

Nov.

460 

435 

395 

400 

395

405 

400 

390 

410 

415

400 

380 

370 

380 

390

*415 

415 

400 

385 

390

410 

405 

410 

450 

460

430 

400 

435 

455 

430

Dec.

420 

395 

395 

395 

380

405 

425 

435 

425 

385

370 

348

400 

400 

390

380 

362 

344 

249 

253

308 

366 

370 

366 

395

390 

405 

460 

330 

316 

316

Jan.

249 

265 

285 

250 

270

250 

255 

270 

280 

290

280 

285 

290 

270 

*256

245 

270 

255 

250 

270

285 

290 

280 

275 

270

270 

270 

295 

280 

250 

275

Feb.

250 

260 

275 

270 

270

280 

285 

285

290 

310

340 

360 

315 

*294 

310

340 

390 

450 

430 

410

410 

400 

400 

400 

410

430 

460 

480

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1946 

ary

h. .............................. ......

1. .............................. ...

St. .................................

ember. .... ...... .................. . .

ter year 1946-47 ......................

Mar.

470 

480 

500 

500 

490

495 

520 

525 

565

642

*684 

555 

520 

535 

545

455

540 

1,110 

1,300 

1,040

1,000 

963 

927 

900 

868

813 

757 

714 

648 

678 

738

Apr.

648 

530 

515 

510 

510

495 

460 

450 

455 

470

515 

510 

480 

455 

465

525 

560 

555 

575 

597

570 

702 

860 

876 

792

702 

678 

750 

771 

744

Secondfoot-day s

13,908 

12,315 

11,578

200,360

8,375

9,804 

21,477 

17,725 

70,546 

58,500 

30,678 

18,802 

13,246

286,954

May

764 

972 

1,480 

2,070 

2,590

2,870 

2,900 

3,000 

3,030 

3,140

3,120 

3,040 

2,810 

2,460 

2,260

2,270 

2,250 

2,130 

2,200 

2,130

2,040 

2,030 

2,200 

2,300 

2,160

2,000 

2,120 

2,220 

2,270 

2,040 

1,680

Maximum

624 

460 

460

1,760

295

480 

1,300 

876 

3,140 

2,870 

1,970 

1,650 

671

3,140

June

1,590 

1,620 

1,650 

1,950 

2,040

2,020 

1,720 

1,550 

2,260 

2,660

2,630 

2,290 

2,090 

1,690 

1,520

1,450 

1,490 

1,700 

1,820 

1,900

1,970 

2,660 

2,870 

2,260 

1,880

1,760 

1,710 

1,800 

1,940 

2,010

Minimum

316 

370 

249

249

245 

250 

455 

450 

764 

1,450 

518 

454 

393

245

July

1,970 

1,840 

1,650 

1,600 

1,560

1,500 

1,390 

1,290 

1,390 

1,250

1,200 

1,050 

948 

876 

832

790 

776 

783 

720 

706

650 

638 

644 

657 

638

608 

578 

554 

542 

530 

518

Aug.

518 

506 

482 

506 

572

572 

614 

664 

638 

536

1,010 

969 

664 

626 

614

590 

560 

524 

524 

506

542 

1,650 

644 

518 

488

470 

459 

459 

454 

464 

459

Mean

449 

410 

373

549

270 

350 

693 

591 

2,276 

1,950 

990 

607 

442

786

Sept.

448 

432 

410 

404 

404

398

426 

442 

420 

448

671 

548 

530 

488 

459

448 

437 

470 

448 

426

426 

426 

420 

415 

410

404 

404 

393 

393 

398

Runoff in 

acre-feet

27,590 

24,430 

22,960

397,400

16,610 

19,450 

42,600 

35,160 

139,900 

116,000 

60 , 850 

37,290 

26,270

569,100

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Jan. 2 to Mar. 5.
GREEN RIVER BASIN 253

South Fork White River near Buford, Colo.

Location.- Water-stage recorder, lat. 39°55', long. 107°33', in SE^ se?. 36, T. IS., R. 

91 W., 50 feet upstream from Peltier Creek and 6 miles southeast of Buford.

Drainage area.- 156 square miles.

Records available.- July 1903 to October 1906, June 1910 to November 1915 and October 1942 

to September'1947 (discontinued). July 1919 to November 1220 at site 5 miles downstream (records not equivalent).

Average discharge.- 13 years, 266 second-feet.

Extremes.- Maximum discharge during year, 1,790 second-feet June 9 (gage height, 6.00 

feetj, from rating curve extended above 1,200 second-feet; minimum, 56 second-feet 

Dec. 18 (gage height, 1.01 feet).

1903-6, 1910-15, 1942-47: Maxinum discharge observed, 3,230 second-feet June 17, 

1906 (gage height, 8.2 feet, site and datum then in use), from rating curve extended 

above 1,600 second-feet; minimum, that of Dec. 18, 1946.

Remarks.- Records excellent above 150 second-feet and good below, except those for periods 

of ice effect, which are fair. No diversion or regulation.

Discharge, in aecond-feet, water year October 1946 to September 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.

94

131

137

130

128

117

128

121

119

121

110

119

119

114

116

117

128

122

114

114

119

117

117

116

114

112

114

117

149

135

128

Nov.

117

119

133

121

122

116

141

119

112

96

108

112

114

117

111

108

119

*122

116

105

96

108

104

108

108

100

114

106

101

104

-

Dec.

116

106

105

126

105

102

106

105

102

99

111

111

105

102

99

97

78

75

71

93

98

93

108

97

*101

108

110

99

98

90

80

Jan.

82

89

82

88

93

101

99

97

94

96

99

99

97

92

88

*82

94

94

95

97

99

89

88

98

102

92

89

97

97

86

94

Feb.

95

102

112

108

100

102

96

87

93

110

104

94

97

93

*92

93

93

92

90

89

86

90

86

85

86

93

84

92

-

-

-

Month

October. ................................. .

November . ........................ ....... .

December. .................... ..........

Calendar year 1946 .................... .

January. ................................. .

February ................................. .

March. ..... ...............................

April. . ...................................

May. ......................................

June .......................................

July. ..:.......... ...................... .

August .................... .............. .

September . . .......... ...................

Water year 1946-47 ......................

Mar.

82

85

84

85

85

88

88

85

80

81

84

82

79

84

*80

79

80

82

82

82

82

85

88

85

79

85

82

86

87

87

87

Apr.

87

89

93

93

89

88

87

87

90

90

92

88

89

101

117

124

126

139

137

155

194

213

198

176

161

159

174

168

168

183

-

Secondfoot days

3,737

3,377

3,096

74,640

2,889

2,644

2,590

3,855

27,065

33,511

15,616

5,609

4,019

108 , 008

May

220

325

484

642

710

798

818

882

1,050

1,060

1,020

882

782

746

778

762

782

866

830

902

950

1,090

1,190

1,080

1,100

1,210

1,160

1,200

1,010

854

882

Maximum

149

141

126

1,230

102

112

88

213

1,210

1,680

1,010

168

1,680

June

934

990

1,160

1,230

1,050

966

1,170

1,560

1,680

1,340

1,230

1,030

850

787

780

930

1,140

1,160

1,190

1,310

1,510

1,270

1,020

906

882

946

1,080

1,150

1,170

1,090

-

Minimum

94

96

71

71

82

84,

79

87

220

780

235

140

116

71

July

1,010

938

938

878

843

766

714

678

717

640

570

524

486

454

434

420

388

392

356

332

336

346

336

307

286

271

262

259

256

244

235

Aug.

229

217

211

211

223

217

205

198

198

202

195

192

195

192

182

178

178

180

168

166

163

166

161

156

154

148

146

150

146

142

140

Mean

121

113

99.9

204

93.2

94.4

83.5

128

873

1,117

504

181

134

296

Sept.

138

136

136

138

134

148

138

136

138

166

168

152

144

136

132

131

138

138

131

129

125

125

123

123

122

122

120

118

118

116

-

Runoff in 

acre-feet

7,410

6,700

6,140

148,000

5,730

5,240

5,140

7,650

53,680

66,470

30,970

11,130

7,970

214,2OO

*-Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Nov. 11-13, 21, 26, Dec 18, Jan. 15 to Feb. 5,
254 GREEN RIVER BASIN

Price River above Scofield Reservoir, near Scofield, Utah

Location.- Water-stage recorder, lat. 39°46', long. Ill"11', in SEj sec. 18, T. 12 S., R. 

YE., at mouth of canyon, 800 feet upstream from bridge, half a mile upstream from 

Pontovm Creek, and 4 miles north of Scofield.

Drainage area.- 62 square miles.

Records available.- June 1931 to September 1932 (fragmentary), October 1938 to September 1^47. 

Extremes.- Maximum discharge during year, 622 second-feet May 4 (gage height, 3.08 feet); 

minimum not determined, occurred during period of ice effect.

1931-32, 1938-47: Maximum discharge, 673 second-feet May 19, 1932; minimum 

determined, 3 second-feet Sept. 10-30, 1932, Nov. 9, 194L, 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 or no gage-height record, 

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 1946 to September 3947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7.5

17

13

11

9.7

10

12

11

11

11

9.7

9.2

8.8

8.3

8.3

8.3

11

11

9.7

11

10

11

»11

8.3

7.9

7.5

9.7

20

23

15

12

Nov.

10

8.4

8.4

8.5

8.5

8.5

8.5

9.2

9.2

9.2

8.4

8.4

9.2

10

9.6

9.3

9.1

8.9

8.6

10

9.0

10

8.5

8.5

8.5

8.5

*8.5

8.5

8.5

8.5

-

Dec.

8.5

8.5

8.5

9.0

9.0

9.0

' 8.5

(*)

}"

Jan.

\

. 7.0

. 8.0

Feb.

> 8.0

(*)

 9.0

Month

October. ...................................

November. ........................ .........

December ...................................

Calendar year 1945 ......................

January. ...................................

February ................:............ .....

March. .....................................

April. .....................................

May........................................

June .......................................

July. ............. ........................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

.

1

> 9.0

J

' 10

*12

12

16

24

28

25

26

27

30

22

26

26

20

22

18

23

24

24

Apr.

24

24

25

24

26

25

25

22

20

26

21

20

22

34

51

67

82

94

94

119

148

161

134

119

119

124

143

143

159

204

-

Secondfoot-days

343 9

266.9

259.0

13,779.6

229 0

243 !o

53O.O

2 299

8 1 712

2,093

906

552

303.7

16,737.5

May

273

340

415

498

540

535

531

506

447

388

340

311

275

253

234

230

230

228

223

226

213

194

178

163

154

143

134

150

131

116

113

Maximum

23

10

9.0

384

_

-

30

204

540

104

42

24

12

540

June

104

96

94

93

85

79

71

68

69

67

74

79

82

74

65

59

58

56

54

60

82

80

74

63

60

54

48

45

51

49

-

Minimum

7.E

8.4

_

20

113

45

19

12

7.£

-

July

42

39

38

37

36

36

39

37

36

33

SO

30

?9

30

32

32

SO

28

re

?5

"5

26

26

23

22

20

?0

?O

?O

19

20

Aug.

22

23

22

22

22

20

20

20

20

22

24

20

19

18

20

18

17

16

15

15

19

19

15

13

13

13

12

13

14

14

12

r<> an

11.1

8.90

8.35

37.8

7 39

S".68

17.1

76 . 6

281

69 .8

29 2

17 .8

10.1

45.9

Sept.

11

11

12

11

11

11

10

11

12

12

11

11

10

9.7

9.7

9.7

11

11

9.7

9.7

9.7

9.7

9.7 9.7

9.2

8.8

8.3

8.3

7.9

7.9

-

Runoff in 

acre feet

682

529

514

27,340

454

482

1,050

4,560

17,280

4,150

1,800

1,090

602

33,190

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 1-12, Nov. 15 to Mar. 13 (ro gage-height 

record Dec. 28 to Feb. 13, Mar. 3-13; discharge computed on "basis of weather records and records for 

stations on nearby streams).
GREEN RIVER BASIN 255

Scofield Reservoir near Scofield, Utah

Location.- Inclined staff gage, lat. 39°47', long. 111°08', in sec. 10, T. 12 S., R. 7 E., 

SWTeet 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 1947. Fragmentary records 1926 to 1941 on

rue in orrice of State Engineer.

Extremes.- Maximum net contents during year, 36,170 acre-feet June 1 (elevation, 7,606.1 

 feet); minimum, 1,220 acre-feet Oct. 5-12 (elevation, 7,587.1 feet). 

1941-47: Maximum net contents, that of June 1, 1947.

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, roclc-faced dam 800 feet downstream 

I'rom old dam used up to Nov. 7, 1945. Use of new dam began Nov. 8, 1945. Usable capacity of reservoir formed by new dam is 65,000 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.- Revised figures of contents and monthly elevations for the wqter year 1946, 

superseding those published in Water-Supply Paper 1059, are given herewith.

Contents, in acre-feet, 1945-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a530

_

280

-

.

_

^

_

-

_

_

_

-

_

_

_

_

-

Nov.

al,030

Dec.

1,800

Jan.

a2,570

2 , 600

-

-

-

_

_

_

-

_

_

_

-

_

_

r

-

_

_

_

-

_

_

_

_

-

Feb.

2,910

Mar.

4,560

_

_

-

-

_

_

_

-

_

_

_

-

_

_

_

-

_

_

_

-

_

_

_

_

5, RIO

Apr.

5,610

_

_

-

-

_

_

-

-

-

_

-

_

-

-

_

9,480

-

-

-

.

-

_

_

13,320

14 060

14 063

1? 9RO

16 730

17 510

-

Hay

18,100

18,700

19,100

19, SOD

20,710

21,110

21,723

22,130

22,130

£2,750

22,960

23,160

23,370

23,163

23,160

23,160

23,160

23,160

22,960

22,750

22,540

22,540

22,340

22,130

22,130

22,130

21,930

21,520

21,520

£1,520

21 , 520

June

21,720

21,720

21,720

21.720

21,720

21,520

21,523

21,320

21,320

21,320

20,910

20,910

20,710

23,500

23,100

20,100

19,500

19,500

19,300

19,300

19,100

13,700

18,500

18,100

17,900

17,320

17,120

16,920

16,540

16,340

-

July

16.150

15,960

15,570

15,190

15,190

15,000

14,620

14,440

13,880

13,690

13,320

12,960

12.600

12,240

12,060

11,700

11,350

11,000

3,980

3,980

9,810

9 , 480

9,31")

8,820

8,660

8,660

8,500

8,340

8,340

8,180

8,180

Aug.

7 , 560

7 , 400

7,250

6,940

6,790

5,490

6 , 200

6,050

5 , 900

5,610

5,470

5,190

5,190

5,190

5,190

5,050

4,910

4,770

4,530

4,490

4,220

4,080

3,950

3.950

3,950

3,950

3,950

3,950

4,490

4,360

4,220

Sept.

,030

,95J

,820

,680

,420

,160

.310

,780

,660

,413

. 290

,040

, b'2 ' ,800

,800

,680

,560

,450

,530

,220

,220

, 220 '

,100

,450

,920

, =1 JO

. ,630

,560

,560

,450

-

interpolate 1.
GREEN RIVER BASIN

Contents, in acre-feet, of Scofield Reservoir near Scofield, Utah, 1945-47 Continued

1946-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,330

1 , 330

1,330

1,330

1,2X0

1,220

1,220

1,220

1,220

1,220

1,220

1,220

1,330

1,330

1,330

1 , 330

1,330

1,330

1,330

1,330

1,450

1,450

1,450

1,450

1,450

1,450

1,450

-

-

-

-

Nov.

al,740

-

-

-

-

_.

-

-

-

-

_

-

-

-

-

_

- .

-

-

-

.

-

-

-

3,160

.

-

-

-

-

-

Deo.

a3,450

-

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

4,360

_

-

-

-

-

_

-

-

-

-

-

Jan.

a4,830

-

-

-

-

_

-

-

-

-

_

-

-

_

-

_

-

-

-

-

.

-

-

-

5,760

_

-

-

-

-

-

Feb.

5,760

5,760

5,760

5,760

5,760

5,900

5,900

5,900

5,900

5,900

6,050

6,050

6,050

6,050

6,050

6,200

6,200

6,340

6,340

6,340

6 , 340

6,340

6,340

6,340

6,340

6,340

6,490

6,490

-

_

-

Mar.

6,490

6,490

6,640

6,640

6,640

6,640

6,640

6,640

6,790

6,790

6,940

5,940

6,940

7,090

7,090

7,250

7,250

7,250

7,400

7,400

7.560

7;560

7,710

7,870

7,870

8,020

8,020

8,020

8,180

8,180

8,340

Apr.

8,340

8,340

8,500

8,660

8,990

9,150

9,310

9,640

9,980

10,150

10,320

10,490

10,660

10,330

11,000

11,350

11,530

11,700

11,700

12,420

12,780

12,960

12,960

13,510

13,880

14,250

14,620

15,000

15,380

15,760

-

Hay

16,540

17,320

18 , 300

19,700

20,710

22,130

23,160

24,620

25,880

27,370

28,020

28,890

29,550

31,100

31,780

32,690

33,140

33,370

33,600

33,830

34,530

34,760

34.990

34,990

35,230

35,460

35,700

35,700

35,930

35,930

35,930

June

36,170

35,930

35,700

35,700

35,700

35,700

35,700

35,460

35,460

35,460

35,460

35,230

35,230

35,230

35,230

34,990

34,760

34,760

34,760

34,530

34,530

34,990

35,230

35,230

35,230

34,760

34,760

34,530

34 , 300

34,060

July

33,83C

33,60C

33,140

32,690

32.23C

31.78C

31.55C

31.33C

30,88C

30.43C

30.21C

29,77C

29,55C

29,110

28,67.:

2d,02C

27.53C

27,370

27.16C

26,73C

26.30C

26.09C

25.67C

25.25C

25,040

24,620

24,20C

23.78C

23.37C

22.96C

22,960

Aug.

22,340

21,930

21,720

21,520

21,320

20,910

20,710

20,503

20 , 300

20,100

20,300

20,3OO

20,100

19,900

19,700

19,500

19,500

19,300

19,100

18,900

18,900

18,900

18,900

18,900

18,900

18,900

18,700

18,700

18,700

18,700

18,700

Sept.

18,500

18,300

18,100

17,900

17,710

17,510

17,120

16,730

16,540

16,150

15,960

15,570

15,330

15,190

15,000

14,810

14,810

14,620

14,440

14,620

14,620

14,620

14,620

14,440

14,060

13,880

13,320

13,320

13,140

12,780

No gage-height record; contents Interpolated.

Monthly elevations and contents, water years October 1945 to Septembe

Date

Dec. 1. ..................

Calendar year 1945.....

Jan. 1, 1946. ............

fllln- T

Calendar year 1946.....

Water year 194R-47.. . . .

Elevation 

(feet)

-

-

592 3

599 8

-

Contents 

(acre-feet)

-

-

-

Change in contents 

during month 

(acre-feet)

-

+2,250

+730

+11,270

Note.- 8,000 acre-feet of dead storage not included in
GREEN RIVER BASIN 257

Price River near Scofield, Utah

Location.- Water-stage recorder and concrete control, lat. 39°47' long. 111°07', in 

SEt sec. 10, T. 12 S., R. 7 E., 800 feet downstream from new Scofield Reservoir Dam, 

S 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 13S1, June to September 1925, April 1926 

to September 1931, October 1938 to September 1947.

Average discharge.- 14 years (1926-31, 1938-47), 60.3 second feet.

Extremes.- Maximum discharge during year, 228 second-feet (regulated) July 12-18 (gage 

height, 1.70 feet); minimum not determined, occurred during period of no gage-height 

record.

1917-20, 1926-31, 1938-47: Maximum discharge, 1,000 second-feet 01 or about May 

24, 1920 (gage height, 10.4 feet, from floodmark, site and datum then in use), from 

rating curve extended above SOU second-feet; no flow Nov. 8, 1945.

Remarks.- Records good. Plow completely regulated by Scofield Reservoir (see preceding 

page). Small diversions above Scofield Reservoir for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

24

24

23

22

.4

.4

.4

.4

.4

.4

> .4

.h.4

> .4

Nov.

. 0.4

.4

.3

.3

.3

.2

.2

-

Dec.

0.2

> .2

Jan.

> 0.1

Feb.

> 0.1

_

_

-

Month

October. ...................................

November . .................. ..............

December . ................. ...............

Calendar year 1946 ......................

January ..... ....................... ....

February. .................. ....... . ...

March ....... ............. ........... ...

April. ........ ...........................

May.......... ....................... ......

June .... ... . . ...... ... ...............

July. ... .................... ......... ...

August ..................... ..... ...

September. . . . . ........... ... . ...

Water year 1946 47 ... . . ...............

Mar.

 0.1

Apr.

 0.1

.1

.1

.1

.2

.'2

.2

.1

-

Secondfoot days

103.8

11.3

6.2

17,291.1

3.1

2.8

3.1

3.4

1 390.3

3 569.9

6 323

2 488.7

3 lib. 9

17,022.5

May

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4

.4

.4

13

25

25

25

25

27

40

58

87

94

104

113

118

118

118

118

132

147

Maximum

24

-

228

.2

147

228

174

153

228

June

147

147

147

147

147

135

118

118

118

118

113

116

121

118

118

118

121

121

121

109

37

.9

53

90

119

141

141

141

150

179

-

Minimum

n

-

-

_

.2

.9

178

.4

.2

-

July

204

204

204

204

208

208

201

197

197

197

212

225

228

223

228

228

228

217

184

184

184

181

181

178

178

192

211

208

238

238

208

Aug.

174

153

153

153

153

150

138

138

86

48

48

48

62

73

73

73

73

73

73

87

94

45

8.3

.4

13

39

52

52

52

52

52

Mean

3.35

.38

47.4

.1

.1

.1

.11

44.8

119

204

80.3

104

46.6

Sept.

52

83

loo

97

137

153

153

150

147

147

14?

142

102

102

100

100

100

31

.3

.2

.2

.2

97

103

147

147

147

144

144

144

-

Runoff in 

acre-feet

206

22

12

34,290

6.1

5.6

6.1

6.7

2,760

7.08U

12,540

4,940

6,180

33,760
253 GREEN RIVER BASIN

Price River near Heiner, Utah

Luxation.- Water-stage recorder, lat. 39°43'05", long. 110"51'55", in SW£ sec. 1, T. 13 

S., R. 9E., two-thirds of a mile north of Heiner and three-quarters of a mile downstream from Willow Creek.

Drainage area.- 45!j square miles.

Records available.- June 1934 to September 1947.

Avfrage discharge.- 13 years, 110 second-feet.

EM ivmt-'S.- Maximum discharge during year, 2,180 second-feet Oct. 1 (gage height, 4.68 

tv>et); minimum, 3.0 second-feet Nov. 1.

1 J 34-17: Maximum discharge, 9,340 second-feet Sept. 13, 1940 (gage height, 7.98 

1' i-t), by Elopp-area method; minimum, less than 1 second-foot at times Sept. 1-10,

I "34.

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

whi'ii nr.j t'-ilr. Station is above diversions from main stream for irrigation. Several 

small diver-clone from tributaries above station for irrigation and municipal supply. 

Flow -ilTe^ted by Scofield Reservoir (see p. 255).

Discharge, in second-feet, water year October 1946 to September 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.

190

60

37

25

10

12

15

12

10

9.0

8.0

7.4

6.8

6.2

5.8

5.6

5.7

5.8

6.0

6.0

*6.0

5.7

5.4

4.5

5.7

4.5

5.7

24

22

12

7.2

Nov.

5.7

b5.1

b4.8

b4.6

b4.5

5.4

6.0

7.2

6.3

5.1

b4.5

bS.O

8.0

11

bll

blO

b9.6

8.4

8.0

9.8

b9.0

b9.4

9.8

7.2

(*)

. bS.O

-

Dec.

bS.O

b7.8

b7.6

7.2

8.0

8.8

8.8

7.5

b7.4

b7.0

b8.0

9.8

9.3

8.8

b8. 5

b7.4

b6. 6

b6.0

b7.0

*b8.0

b7.6

b7.4

6.9

6.9

7.2

7.5

b7.3

b7.1

b6.9

b6.0

b6.0

Jan.

' b6.0

b5.9

55.9

5.8

*5.7

5.7

b5.7

5.7

5.7

6.6

6.9

8.0

8.4

bS.O

b7.6

8.0

Feb.

b8. 4

bs.e

9.3

10

12

14

14

b!4

b!3

13

13

*b!3

13

17

25

29

28

35

35

b30

b25

24

24

29

bZ5

b21

b!9

17

-

_

-

Month

October ....................................

November ......................... ........

December ...................................

Calendar year 1946 ................. ....

January. ........................... .... .

February ............................. .....

March .................................. ...

April. ................................ . . .

May..... ................................

June .................................. ....

July. ......................................

August ................................ ...

September .............. ...................

Water year 1946 47 ... . . . - ...... ....

Mar.

b!5

b!4

b!4

b!5

b!6

b!7

16

20

22

37

41

*26

26

43

62

81

79

85

81

70

67

67

79

69

55

56

49

52

54

58

60

Apr.

70

74

77

79

79

75

75

72

75

74

74

57

67

70

92

114

133

143

146

146

151

159

146

130

126

120

136

138

138

143

Secondfoot-days

546.0

223.4

234.3

26,462.7

195. 6

538.5

1,450

3,189

7,330

5,186

7,217

3,497

3, 028 . 5

3E.635.3

May

165

199

246

284

305

302

294

277

260

253

274

237

218

211

230

227

218

211

202

202

218

230

233

230

233

230

227

233

224

214

243

Maximum

190

11

9.8

274

8.4

35

85

159

305

237

270

235

156

305

June

233

233

233

237

227

221

193

182

182

182

179

182

173

167

159

156

156

159

159

162

143

67

56

133

136

170

170

1', 0

179

187

Minimum

4.5

4.5

6.0

5.7

8.4

14

67

165

56

202

14

6.3

4.E

July

237

237

237

240

237

240

240

?33

c33

230

?30

253

260 2-63

?63

?70

?63

?60

T18

?08

roe

m

?oe

?02

202

"02

F27

227

227

224

227

Aug.

211

173

196

187

208

208

165

170

151

83

74

70

81

156

98

90

90

38

85

92

235

156

43

25

14

19

58

69

64

79

59

Mean

17.6

7.45

7.56

72.5

6.31

19.2

46.6

106

236

173

233

113

101

89.4

Sept.

56

59

96

96

107

146

148

156

154

148

146

143

107

98

100

100

103

93

20

10

8.0

7.2

6.3

83

105

143

148

146

148

148

Runoff in 

acre- feet

1-.080

443

465

52,480

388

1,070

2,880

6,330

14,540

10,290

14,310

6,940

6,010

64,750

19; discharge computed on basis or weather records
GREEN RIVER BASIN "d 

Price River at Woodside, Utah

Location.- Water-stage recorder, lat. 39°17', long. 110°21', in SE^ sec. f, T. 18 S., R. 

14 E., 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 1947.

Extremes.- 1945-46: Maximum discharge during ptriod, 967 second-feet Aug. 24 (gage 

height, 2.77 feet); minimum, 5.3 second-feet Aug. 10.

1946-47; Maximum discharge during year, 6,820 second-feet Aug. 22 (gage height, 

6.55 feet); minimum, 9.6 second-feet Oct. 1.

1909-11, 1945-47: Maximum discharge observed, 8,100 second-feet Se^t. i. 1909, by 

float measurement; minimum, no flow on several days during July, August, September 

1910.

Remarks - Records good except those for periods of ice effect or doubtful or no gageheight record, which are fair. Many diversions above station for irrigation. Flow 

affected by Scofield Reservoir (see'p. 255).

Discharge, in second-feet, 1945-47 

1945-46

Day

1

2

3

4

5

6

7

8

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.

_

_

_

_

-

.

_

_

_

-

_

-

_

_

_

_

_

_

_

-

_

_

_

_

-

_

48

52

42

41

-

Dec.

50

38

25

(323

(323

*25

36

29

b25

/

b!5

\

>*b6.0

I

'

»

1

>blO

j1

Jan.

 alO

i a29

(*)

Feb.

' b29

(*)

b42

b60

b70

b90

_

-

Mar.

102

91

94

86

73

89

71

65

*63

57

67

78

69

78

76

73

73

61

59

73

115

105

81

67

59

61

55

59

71

76

67

Apr.

59

67

83

,71

59

55

61

71

73

73

67

59

50

47

53

67

71

86

94

69

73

78

89

67

52

42

37

38

41

41

Hay

32

42

83

69

46

31

24

30

24

25

30

37

89

65

46

41

35

36

33

31

33

34

48

42

41

32

31

27

33

31

30

June

33

33

29

22

18

15

13

13

14

13

15

16

17

16

14

14

14

19

19

17

16

16

14

11

10

10

11

10

10

8.6

July

8.2

7.8

7.2

9.2

11

52

26

19

15

14

13

11

11

16

18

14

13

12

14

14

15

14

13

11

21

76

61

36

24

27

22

Aug.

15

14

11

9.2

7.5

7.2

7.2

6.1

6.4

5.5

7.8

34

105

259

201

163

63

29

21

17

62

323

139

530

a270

alOO

a40

55

48

25

24

Sept.

21

18

18

19

16

14

12

11

11

9.6

13

11

11

18

19

13

11

10

10

11

11

11

11

11

12

11

13

11

10

10-

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records Tor stations near Scofield and 

near Heiner.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of records for stations near Scofield 

and near Heiner.
Discharge, in second-feet, of Price River at Woodside, Utah, 1945-47--Continued

1946-47

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.

12

850

174

67

62

76

123

69

46

43

37

33

30

28

23

21

20

20

21

21

21

21

22

21

20

20

22

23

46

67

41

Nov.

36

33

31

27

26

28

31

48

60

64

44

41

44

71

83

58

40

36

34

38

41

43

41

43

49

37

36

38

36

40

Dec.

40

41

38

36

37

40

49

57

51

43

36

37

38

40

40

*38

36

27

20

34

*

I

\ bsn

J

\

> *b20

)

Jan.

(*)

' b!8

(*)

 b!5

(*1

' *b2 j

Feb.

b25

626

*b28

629

b30

b32

b34

b36

b38

b40

b42

*b45

b48

b52

b60

b70

*b80

83

69

71

74

71

67

*69

69

64

51

55

_

-

Mar.

51

44

48

46

51

46

43

41

44

48

48

53

58

49

57

76

113

130

133

123

113

120

110

123

107

88

83

85

85

80

71

Apr.

80

91

88

93

91

88

93

96

93

85

80

67

60

58

64

88

96

93

80

74

71

83

93

120

71

48

46

43

57

83

-

Hay

78

80

120

166

208

204

163

130

105

107

107

217

221

147

123

120

116

105

96

83

67

57

57

55

55

53

55

49

49

49

46

June

44

49

51

74

116

91

85

64

49

43

53

60

55

48

43

41

41

38

37

37

46

78

105

67

49

46

40

37

33

33

-

July

28

24

30

29

28

31

36

41

51

57

43

33

30

29

33

36

41

49

43

38

34

31

31

67

38

30

28

28

28

28

27

Aug.

26

28

34

30

82

137

144

88

232

486

341

133

195

96

105

123

130

130

123

107

186

3,350

a 300

al50

alOO

80

67

55

180

85

64

Sept.

60

55

46

41

43

38

37

46

44

80

58

49

44

44

38

33

30

33

33

54

27

21

19

19

18

17

24

33

30

29

-

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of 

stations.

b Stage-discharge relation affected by ice.

ather records and records for nearby

Monthly discharge, in second-feet, 1945-47

Month

December 1945 ..............................

Calendar year .......................

September. ..................................

Thf period ................................

December. ...................................

Calendar year 1946 .......................

September. .................................

Water year 1946-47 ......................

Secondfoot-days

_

542.0

.

387.6

_

1,078

15,468.5

2,373

1,653

1,100

7,387

1,123

25,777

Maximum

_

50

_

115

94

33

530

21

_

57

850

83

133

120

221

116

67

3,350

80

3,350

Minimum

_

_

-

_

55

37

24

8.6

7.2

5.5

9.6

.

12

5.5

25

41

43

46

33

24

26

17

12

Mean

_

_

17.5

_

16.7

34.2

74.6

63.1

39.7

16.0

20.2

84.0

12.9

_

67.7

42.6

34.8

42.4

18.5

52.1

76.4

79.1

106

55.1

35.5

238

37.4

70.6

Runoff in 

acre-feet

_

_

1,080

_

1,030

1,900

4,590

3,750

2,440

953

1,240

5,170

769

22,920

4,170

2 , 530

2,140

30,680

1,140

2,890

4,690

4,710

6,520

3,280

2,180

14,650

2,230

51,130
GREEN RIVER BASIN

Gooseberry Creek near Scofield, Otah

Location.- Water-stage recorder, lat. 39°43', long. 111°18 I , in SW-J sec. 6, T. 13 S., R. 

b K., 300 feet downstream from old Mammoth Dam, 5-| miles upstream frcm mouth, and 7 

miles west of Scofield.

Drainage area.- 16.4 square miles.

Records available.- October 1930 to September 1931, May 1940 to September 1947.

Extremes.- Maximum discharge during year, 292 second-feet May 4 (gage height, 2.06 feet); 

minimum not determined, occurred during period of no gage-height record.

1930-31, 1940-47: Maximum discharge, 366 second-feet May 18, 1941 (gage height, 

2.25 feet); minimum discharge recorded, 1.6 second-feet Aug. 30, 1946.

Remarks.- Records good except those for period of 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.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

0.3 

3.6 

8.5

0.4 

.6

1.3 

1.7 

1.9

121

202

250

Discharge, in second-feet, water year October 1946 to September 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.

3.6

9.0

7.5

6.0

5.1

5.6

6.0

5.6

5.6

5.6

5.1

4.6

4.1

4.1

3.6

4.1

4.6

4.6

4.1

3.2

3.2

3.2

3.2

2.8

2.8

3.2

4.1

8.0

11

8.5

6.0

Nov.

4.6

4.6

3.6

3.2

3.2

2.8

2.8

3.2

3.2

3.2

2.8

2.8

3.6

5.1

5.6

5.1

4.6

4.1

3.6

4.1

3.6

3.6

4.6

6.5

5.6

4.6

4.6

4.1

3.6

3.6

-

Dec.

,

> 3.6

'

4.0

4.5

5.0

4.5

4.0

3.5

3.2

3.2

3.6

3.5

3.4

3.2

2.6

2.5

2.9

3.0

Jan.

 2.5

Feb.

> 2.5

_

-

-

Month

October. ..................... .............

November . ..................................

December. . ................................

Calendar year 1946 ......................

January. ................................. .

February .............................. .....

March. ............................... .....

April. ........ ...................... .....

May. .......................................

June ............ ..........................

July. ......................................

August .....................................

September. ................ ................

Water year 1946-47 ......'.... ...........

Mar.

2.5

3.0

.5

.0

.5

.8

.5

.3

.0

.5

.1

.6

.0

.0

.0

Apr.

7.5

8.0

8.5

8.5

8.0

8.0

8.0

7.5

7.5

8.0

7.5

7.0

6.5

9.0

12

15

19

27

26

34

44

50

37

31

30

32

39

43

52

88

-

Secondfoot-days

157.7

120.2

104.0

5,306.8

77.5

70.0

111.8

688.5

3,778

952

385. 3

261.9

153.2

6,860.1

May

125

165

204

235

235

230

232

218

189

157

139

134

116

102

95

93

90

88

90

96

89

80

73

67

64

63

58

70

73

54

54

Maximum

11

6.5

5.0

135

7.0

88

235

48

20

10

7.0

235

June

48

46

44

44

40

36

33

31

31

29

32

37

41

36

29

26

24

24

23

26

29

36

32

27

28

24

22

21

29

24

-

Minimum

2.E

2.6

6.5

54

21

T'.C

2.8

-

July

20

19

18

18

16

16

18

16

15

15

13

12

12

12

12

13

12

11

11

10

9.6

9.6

10

9.6

9.0

8.5

8.0

8.0

8.0

8.0

8.0

Aug.

9.0

9.6

9.6

8.5

8.5

8.0

8.0

8.0

8.0

9.6

10

9.0

9.0

8.5

9.0

8.5

8.0

7.5

7.5

8.0

9.6

10

8.5

8.0

8.0

8.0

7.5

7.5

8.0

8.0

7.0

Mean

5.09

4.01

3.35

14 "">

2,5

2^5

3.61

23.0

122

31.7

12.4

8.45

5.11

18.8

Sept.

6.5

6.5

6.5

6.0

5.6

5.6

5.6

5.6

6.0

6.0

6.0

6.0

6.0

5.6

6.0

6.0

7.0

5.1

5.1

4.6

4.1

4.1

4.1

3.6

3.6

3.6

3.2

2.8

3.2

3.6

-

Runoff in 

acre- feet

313

238

206

10,530

154

139

222

1,370

7,490

1,890

764

519

304

13,610

Note.- No gage-height record De 

scores for nearby stations.

1 to Mar. 26; discharge computed on basis
262 GREEN RIVER BASIN

White River near Soldier Summit, Utah

Location.- Water-stage recorder and concrete control, lat. 39°55', long. 111°04 I , in SE^ 

sec. 30, T. 10S..R. 8E., 600 feet downstream from North Pork and 1 mile southeast 

of Soldier Summit.

Records available.- April 1938 to September 1947.

Extremes.- Maximum discharge during year, 165 second-feet May 5 (gage height, 1.86 feet); 

minimum daily, 1.7 second-feet Oct. 1, but may have been less during period of no gageheight record.

1938-47: 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 from North Fork for irrigation.

Discharge, in aecond-feet, water year October 1946 to September 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.

1.7

2.2

2.4

2.2

2.4

2.6

2.9

2.9

2.9

2.6

2.4

2.4

2.2

2.2

2.0

2.4

2.8

2.9

2.8

2.6

2.8

2.8

2.8

2.8

.2.8

2.8

2.8

3.6

4.6

4.1

3.1

Nov.

2.6

2.4

2.2

2.2

2.2

2.6

2.6

2.8

2.8

2.6

Z.4

2.4

2.6

2.9

2.8

2.6

2.6

2.6

2.6

2.6

2.8

2.6

2.8

3.1

*3.1

3.1

2.9

3.1

3.1

2.9

-

Dec.

2.9

2.9

2.9

2.9

2.9

2.9

3.1

3.1

2.9

2.9

2.9

2.9

2.9

2.9

2.9

(*)

> b2.9

b2.5

b2.5

b2.5

a2.5

Jan.

> a2.5

(*)

> a2.8

Feb.

> a2.8

(*)

> b2.8

, a2.8

-

_

-

Month

Oc-tober. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January. ................................. .

February ...................................

March. .....................................

April. .....................................

May. ............................ .......

June ............ ..........................

July. ............. ........................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

\

> a2.8

(*)

a5.0

alo

alE

a20

a26

a25

a23

a22

a22

a22

a21

a!9

a!9

a!9

*20

22

27

30

Apr.

31

34

34

33

29

27

25

25

26

25

25

24

28

39

53

58

59

63

61

66

74

74

67

62

61

63

71

72

74

81

Secondfoot-days

84.5

8O. 6

88.7

4,746.6

80.8

78.4

403. 4

1,464

2,447

531

221.7

106.7

83.4

5,670.2

May

101

124

144

155

158

149

137

131

119

103

98

92

81

77

71

65

61

57

54

51

49

45

44

41

38

35

34

35

33

30

29

Maximum

4.6

3.1

3.1

15Z

_

30

81

158

27

11

5.2

4.1

158

June

27

27

26

26

24

22

21

20

22

21

20

22

18

16

16

16

16

16

14

14

16

14

14

13

13

12

12

11

11

11

Minimum

1.7

2.2

2.5

.

_

24

29

11

4.1

2.8

2.0

1.7

July

11

10

9.7

10

9.7

9.3

109.7'

9.0

8.6

.8

.5

.5

.5

.5

.5

.1

; .4

.7

.5

.5

.5

.2

.9

.6

.6

.6

.6

.4

.1

Aug.

4.1

4.4

4.4

4.4

3.8

3.1

2.9

2.9

2.9

2.9

3.1

3.1

3.1

3.1

3.3

3.1

3.3

3.3

3.6

3.3

3.3

4.1

3.3

3.1

2.9

2.9

2.8

3.1

3.8

5.2

4.1

Mean

2.73

2.86

13.0

2.61

2.8,

13.0

48.8

78.9

17.7

7.15

3. 44

z'.7S

15.5

Sept.

3.3

2.8

2.9

2.9

2.9

4.1

3.3

3.1

3.1

3.3

3.1

2.8

2.8

2.4

2.4

2.4

2.8

2.9

2.9

2.9

2.9

2.6

2.2

2.0

2.2

2.4

2.4

2.2

2.6

2.8

Runoff in 

acre- feet

168

160

176

9,420

160

156

800

2,900

4 , 85'J

1,050

440

212

165

11,240

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of 4 discharge measurements, weather records, 

nd records for nearby stations, 

b Stage-discharge relation affected by Ice.
GREEN RIVER BASIN 

North Fork White River near Soldier Summit, Utah

263

Location.- Water-stage recorder, lat. 39°56', long. 111°04', in NE^ sec. 30, T. 10 S., R. 

BE., 500 feet upstream from mouth and 1 mile southeast of Soldier Sumit.it.

Records available.- October 1942 to September 1947 (discontinued). April 1938 to September 1942 (Fragmentary) in files of Bureau of Reclamation.

Extremes.- Maximum discharge during year, 86 second-feet May 4; minimum not determined, 

occurred during period of no gage-height record.

1942-47: Maximum discharge, 121 second-feet May 9, 1944 (gage height, 3.50 feet); 

no flow at times during 1942-43.

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

wnicn are poor. One small diversion above station for irrigation.

Discharge, in second feet, water year October 1946 to September 1947

Day

1

2

3 

4

7

9

11

13

L6

21

22 

23

24

25

26

28

29

31

Oct.

0.2

a.S

> a. 4

.4

.3 

.3

.3

.3

.3

.3

.6

a. 9

a. 7

a. 6

Nov.

aO.5

a.S

f -

a.S

a. 6

a. 6

\"

a. 6

a. 6

a.S

a. 6 

a. 7

a.S

.7

a. 7

\

1

-

Dec.

\ ao.6

a.S

f "

Jan.

S ao.4

I a.S

Feb.

ao.s

a.S

V a. 6

> a. 7

-

_

-

Month

December ...................................

April. .....................................

May........................................

July 

Augu st ... ... . . September. ...... ..........................

Water year 1946-47 ......................

Mar.

/

a. 9

a2.s

aS.o

a9.o

alo

a!2

a!2

all

..

I alO

.

1

S a9.0

1

9.6

11

14

18

Apr.

a!8

a!9

a!9

a!8

a!4

a.12 119.6

9.6

9.3

9.3

9.0

11

18

29

34

34

34

34

38

43

43 

40

39

37

37

41

42

44

49

-

Secondfoe t-days

13.7

16.5

17.7

18 2

1 123

12ft 2

29.2

6.6

2,372.7

May

53

63

75 

a79

a75

64

59

54

49

a46

a42

36

33

30

28

27

25

24

23

21

19 

18

IS

15

15

14

14

12

11

11

Maximum

0.9

.8

-

79

1.4

79

June

9.6

8.8

8.2 

7.7

8.0

6.5

5.8

6.3

5.8

5.6

6.0

a5. 4

a4.5

a3.9

a3.4

3.0

2.8

2.4

1.4

1.7

1.6 

1.4

1.6

1.6

1.6

1.7

1.7

1.6

Minimum

_

-

.4

-

July

1.3

1.3

1.2 

1.3

1.3

1.4

1.3

.9

.9

1.0

.9

1.0

1.0

a: .0

.9

.8

.8

.8

.8

.8

.8

.7

.4

Aug.

0.4

.4

.4 

.4

.4

.4

.4

.4

.4

.4

f -

.5

.4

.5

.4

1

j

Mean

.55

.57

.94

.22

6.50

Sept.

aO.3

> a. 2

0

.2

.2

.2

.2

-

Runoff in 

acre-feet

35

58

24 

13

4,710

a No gage-height record; discharge computed on basis of 6 discharge measurements, weather records, 

and records for White River near Soldier Summit.

852060 O - 49 - 18
264 GREEN RIVER BASIN

Huntington Creek near Huntington, Utah

Location.- Water-stage recorder, lat. 39° 22< 15", long. 111°03'45", in SE£ sec. 6, T. 17 

S., K. 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 1947.

Average discharge.- 32 years (1910-17, 1921-29, 1930-47), 98.7 second-feet.

Extremes.- Maximum discharge during year, 740 second-feet May b (gage height, 3.71 feet; 

minimum determined, 10 second-feet Dec. 17, but may have been less during periods of 

ice effect

1909-4?! Maximum discharge, 2,500 second-feet Aug. 2 or 3, 1930 (gage height, 7.5 

feet, from floodmark), from rating curve extended above 600 second-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 1946 to September 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

25

26

27

28

29

30

31

Oct.

36

51

34

30

31

39

37

37

38

38

38

39

218

31

32

32

33

34

29

31

36

37

38

33

35

35

38

55

58

41

44

Nov.

35

33

38

35

34

32

33

34

31

28

35

35

34

35

30

26

30

36

34

32

30

33

34

31

27

*34

35

33

29

28

-

Dec.

28

34

28

31

31

35

31

31

28

27

34

35

33

33

32

32

18

20

*23

26

30

30

30

30

30

29

29

25

20

23

23

Jan.

23

23

23

23

25

26

27

28'

29

29

29

29

29

26

24

24

25

27

29

(*)

> 30

Feb.

> 30

28

*33

31

32

32

30

31

33

31

31

34

31

31

30

31

33

28

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

33

33

31

31

29

28

38

31

31

31

31

31

31

31

31

32

36

36

36

38

40

41

47

38

36

38

46

40

42

47

46

Apr.

45

50

48

42

44

42

42

46

40

41

39

44

58

82

lol

117

124

111

165

193

169

126

111

104

104

126

123

152

205

Secondfoot-days

889

29,203

1,196

34,603

May

284

371

469

532

550

522

545

496

423

367

337

301

277

265

252

265

304

333

352

337

344

367

352

322

304

294

29S

315

290

255

258

Maximum

35

443

255

56

550

June

255

243

232

249

243

240

243

243

240

200

195

195

198

183

183

186

183

178

176

178

223

203

190

178

176

169

165

161

154

146

Minimum

18

18

39

31

18

July

140

136

132

150

144

140

148

142

150

172

188

183

183

181

181

181

174

169

163

161

146

142

156

148

144

138

138

138

136

134

134

Aug.

134

132

130

130

130

124

124

124

123

124

121

a!05

a86

a86

a8 6

a82

a78

a74

71

72

121

90

74

70

61

53

51

58

58

52

48

Mean

43 2

28.7

80.0

91 5

39.9

94.8

Sept.

44

44

45

42

44

42

40

56

53

46

41

39

37

36

35

35

36

33

31

31

32

35

37

38

38

40

39

39

41

47

-

Runoff in 

acre-feet

1,760

57,920

2,370

68,630

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather rec 

Creek near Orangevllle.

Note.- Stage-discharge relation affected by ice Dec. 18-24, Dec. 29 to Feb. 11.

md records for Cottonwo
GREEN RIVER BASIN 

San Rafael River near Green River, Utah

265

Location.- Water-stage recorder, lat. 38°52', long. 110°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. Prior to Sept. 10, 1947, water-stage recorder

400 feet downstream at different datum.

Drainage area.'- 1,690 square miles.

Records available.- May 1909 to July 1920, October 1945 to September 1947.

Extremes.- 1946: Maximum discharge during year, 2,410 second-feet Aug. 12 (gage height, 

5.94 reet), from rating curve extended above 800 second-feet by logarithmic plotting; 

no flow Aug. 7-10.

1947: Maximum discharge during year, 8,640 second-feet Aug. 22 (gage height, 9.26 

feet) , from rating curve extended above 800 second-feet by logarithmic plotting; minimum daily, 3.8 second-feet Oct. 1.

1909-20, 1945-47: Maximum discharge, that of Aug. 22, 1947; no flow at times.

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

which are poor. Small diversions for irrigation above and below station.

Discharge, In second-feet, 1945-47 

1945-46

Day

1

2

3

4

5

6

7

8

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

55

70

60

55

55

60

55

> 50

Nov.

> 50

48

45

43

40

38

35

38

41

45

\ 50

; c)57

63

-

Dec.

69

74

63

36

50

39

> 38

(*)

 25

Jan.

(*)

> 25

(*)

> 37

Feb.

> 40

45

50

55

58

60

62

65

70

90

130

200

250

240

-

-

-

Mar.

*230

150

136

130

134

124

103

109

108

104

108

111

113

111

*102

88

83

80

72

69

72

90

84

76

68

62

59

56

56

57

58

Apr.

56

57

59

61

60

56

58

61

64

68

68

70

72

75

80

93

120

134

150

170

189

217

269

334

364

456

451

535

529

501

Hay

501

404

321

265

269

354

440

440

451

478

473

462

378

312

246

235

211

217

242

282

30B

349

334

316

290

246

249

253

221

214

202

June

183

181

192

178

172

192

203

217

214

203

202

195

170

164

159

134

132

134

113

99

90

80

69

62

55

49

45

39

36

32

-

July

27

24

21

20

19

60

44

29

20

13

16

13

11

15

16

14

12

10

17

13

7.4

7.0

6.1

4.0

2.2

.5

32

24

20

11

7.8

Aug.

6.1

5.8

4.9

4.0

3.4

1.4

0

O

0

0

34

931

149

485

189

149

108

63

38

30

26

95

92

129

353

136

87

217

68

60

31

Sept.

ai

16

16

22

15

12

3.6

5.2

3.0

2.6

2.4

2.2

2.0

2.2

2.4

3.2

4.0

3.8

3.6

3.4

3.6

3.8

3.6

4.9

5.2

4.0

3.6

3.8

3.8

3.8

-

* Winter discharge measurement made on this day.

Note.- No gage-height record Oct. 1 to Nov. 28; discharge computed on basis of weather records and 

records for Cottonwood Creek near Orangeville combined with Huntlngton Creek near Funtington. Stagedischarge relation affected by Ice Dec. 7 to Mar. 1.
GREEN RIVER BASIN

Discharge, in second-feet, of San Rafael River near Green River, Utah, 1945-47 Continued

1946-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.8

4.0

14

37

31

47

201

109

58

50

45

36

32

31

30

31

31

32

33

29

32

35

34

35

35

35

35

36

39

45

51

Nov.

50

45

41

36

34

43

46

78

88

90

87

72

78

141

208

143

94

76

70

72

76

79

72

78

92

79

66

66

74

76

-

Dec.

72

69

71

71

78

83

90

104

94

79

68

»63

69

80

70

60

50

30

*35

> 40

35

30

33

Jan.

I

> *33

'

 *35

30

28

*27

27

28

30

31

31

30

*28

35

^

> 55

J (*)

64

Feb.

66

70

72

74

75

77

*80

84

88

90

94

98

*102

108

111

116

116

116

114

*114

109

99

101

99

108

99

98

113

-

-

-

Mar.

102

87

81

88

84

75

69

63

63

66

61

63

63

54

55

53

53

56

60

64

67

66

63

61

64

68

63

63

63

61

64

Apr.

69

71

72

75

59

SO

46

42

46

50

52

50

46

45

40

39

47

59

66

69

56

54

81

83

61

52

48

45

44

50

-

Hay

46

42

103

224

435

610

736

784

913

802

604

700

569

430

364

339

298

321

435

628

736

760

790

730

670

652

676

706

610

501

414

June

393

359

430

694

581

529

501

524

552

529

435

388

373

330

303

290

261

269

253

261

413

1,440

604

424

424

37S

359

298

249

214

-

July

162

134

126

109

102

101

96

96

118

122

96

79

64

57

55

57

70

81

68

58

53

49

51

56

55

51

46

39

36

36

35

Aug.

32

30

27

29

219

203

93

102

98

208

152

148

136

175

170

157

141

490

120

70

222

3,330

1,500

600

250

175

150

200

250

200

160

Sept.

125

100

90

85

80

70

60

55

50

52

65

54

48

45

42

40

37

35

34

31

31

30

30

30

28

26

26

24

23

21

"

» Winter discharge measurement made on this day.

Note.- No gage-height record Oct. 17-21, Dec. 15-28, Aug. 23 to Sept. 9; discharge computed on 

basis of 3 discharge measurements, weather records, and records for Cottonwood Creek near Orangeville and Huntington Creek near Huntlngton. Stage-discharge relation affected by ice Dec. 29 to 

Feb. 14.

Monthly discharge, in nd-feet, 1945-47

Month

December. ...................................

Calendar year .......................

April. ......................................

Hay

July. .......................................

September. ..................................

Water year 1945-46 ........................

December. ...................................

Calendar year 1946 .......................

Harch. ......................................

Hay.........................................

September . ..................................

Water year 1146-47 .......................

Secondfoot-days

1 443

1,034

-

190.7

33,558.3

1,794

35,012.1

1,467

56,373.8

Maximum

74

-

22

931

104

535

913

125

3,330

Minimum

-

2.0

0

30

L °

21

3.8

Mean

33.4

-

6.36

91 .-9

57.9

35.9

48.9

154

Runoff in 

acre-feet

2,050

-

378

66,560

3,560

69,440

2,910

111,800
GREEN RIVER BASIN 267 

Boulger Creek near Fairview, Utah

Location.- Water-stage recorder, lat. 39°38', long. 111°16', In NVf£ sec. 4, T. 14 S., R. 

b E., 2 miles upstream from mouth and 9j miles east of Fairview.

Records available.- May 1938 to September 1947. April to September 1928, May to September 

19<i9, ana April to August 1931 In files of State engineer.

Extremes.- Maximum discharge during year, 45 second-feet between May 1 and 15 (gage height, 

STWTeet from high-water mark In gage well); minimum discharge not determined, occurred 

during period of ice effect.

1938-47: Maximum discharge, 69 second-feet May 16, 1940 (gage height, 2.11 feet); 

minimum not determined, occurred during period of ice effect.

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

wtiich are poor. Diversion above station to Gooseberry Creek Basin where water is rediverted to Sevier River Basin for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

1.3

2.2

1.9

1.9

1.9

1.9

1.8

1.8

1.6

1.6

bl.5

1.5

1.3

1.3

*1.1

bl.2

bl.3

bl.3

bl.3

1.3

1.3

1.3

1.3

bl.3

1.2

l".2

1.3

1.4

1.4

1.3

1.2

Nov.

1.2

1.2

1.2

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

b.9

.9

.9

.9

.9

.8

.8

.9

.9

.8

1.0

1.0

.9

.9

.9

.8

.8

-

Dec.

0.8

.8

.8

.8

.8

.7

.6

b.6

> .6

Jan.

> 0.6

Feb.

0.5

-

-

-

Month

October. ............................ . . ...

November. ........................ . . ......

December. ........... ......................

Calendar year 1946 .................. ...

January ............................. . . . .

February. ....................... ... . ...

March ............... ......................

April. .............. ......................

May................. ............... .. ...

June .......................................

Jnly. .................... ............. ...

August ....... ....... ................. ...

September. ............................. ...

Water year 1946-47 .................. ...

Mar.

' 0.4

*b.

b.

b.

b.

b.

Apr.

1

> bo. 4

/

.4

.4

.4

.4

.5

.5

.5

.5

.6

.9

1.2

1.5

1.9

1.9

1.9

2.6

2.8

2.8

2.5

2.3

2.2

2.2

1.9

1.9

2.9

4.7

-

Secondfoot-days

45. 2

28.5

19.7

1,244.0

15.5

11.2

12= 4

43.9

269 6

lisle

61.9

36.3

1,338.3

May

6.5

11

17

23

33

40

39

35

30

26

22

18

17

16

*17

18

21

25

27

27

26

25

23

21

20

19

18

16

14

14

14

Maximum

2.2

1.2

.8

26

4.7

40

14

5.2 4)1

1.6

40

June

14

14

13

12

11

10

10

10

9.8

8.2

8.2

8.5

8.5

8.2

8.5

8.5

8.2

7.8

7.8

9.5

9.5

9.2

7.8

7.8

7.8

7.2

6.5

6.2

6.2

5.7

-

Minimum

1.1

1

6.5

5.7

2.5

1.0

.9

-

July

5.2

5.2

4.9

4.9

4.7

4.5

4.3

4.1

4.1

3.9

3.7

3.3

3.1

3.1

3.3

3.1

2.9

2.8

2.6

2.5

2.6

2.6

2.6

2.8

2.6

3.9

4.3

4.7

4.7

4.3

4.3

Aug.

4.1

3.7

3.3

3.1

2.9

2.6

2.3

1.9

2.6

3.7

2.8

1.8

1.5

1.5

1.5

1.4

1.4

1.5

1.5

1.5

1.9

1.6

1.5

1.3

1.1

1.0

1.1

1.2

1.5

1.6

1.5

M=>an

1.46

.95

.64

3.41

.5

.4

.40

1.46

21.9

3.73

2! oo

1.21

3.67

Sept.

1.5

1.5

1.6

1.5

1.5

1.4

1.3

1.4

1.3

1.3

1.2

1.3

1.1

1.0

1.0

1.0

1.0

1.1

.9

1.0

1.0

1.0

1.1

1.2

1.1

1.2

1.2

1.1

1.1

1.4

-

Runoff in 

acre- feet

90

57

39

2,470

31

22

25

1 '535 34O

229

123

72

2,650

* Winter discharge measurement made on this 

b Stage-discharge relation affected by ice. 

Note.- No gage-height record Dec. 9 to Mar. 

ecords and records for nearby stations.

day.

26, May 2-14; discharge computed on basis of weather
263 GREEN RIVER BASIN

Cottonwood Creek near Orangeville, Utah

Location.- Water-stage recorder, lat. 39°15'55", long. 111°07'40", in SV£ sec. 10, T. 18 

S., R. 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 1947.

Average discharge^- 31 years (1910-20, 1921-27, 1932-47), 104 second-feet..

Extremes.- Maximum discharge during year, 824 second-feet May 8 (gage height, 4.22 feet); 

minimum dally, 10 second-feet Dec. 29, occurred during period of ice effect.

1909-27, 1932-47: 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), but may have been less 

daring periods of ice effect.

Remarks.- Records good except those for periods of ice effect or no gag?-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, 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 1946 to September 1947

Day

1

23"

4

5

6

7

8

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

36

25

24

23

31

27

27

25

25

21

23

23

22

23

24

24

24

22

23

24

23

23

21

21

20

21

28

53

23

21

Nov.

20

20

20

21

21

21

20

21

20

18

21

20

21

21

20

16

18

21

21

20

18

18

20

19

17

»16

20

19

18

18

-

Dec.

19

18

18

20

19

18

19

17

alS

a!5

a!9

a!9

a!9

a!9

alS

a!8

a!2

a!4

*15

17

18

18

18

18

18

18

18

14

10

13

13

Jan.

13

13

13

13

14

15

17

19

20

20

20

20

18

16

14

14

14

14

16

19

\ (")

22

Feb.

 \

> 22

(*)

23

24

25

24

23

23

22

25

25

23

23

25

21

_

_

-

Month

October. ........................... .......

November ......................... .........

December. ..................................

Calendar year 1946 ......................

January. ................................. .

February ............................ ......

March. .....................................

April.............................. .......

May...........:.................... .......

June ............ .................. .......

July. ............. ............. ..........

August .............. ........ ..........

Septembe r ............... ... . .... . .....

Water year 1946-47 ................. ....

Mar.

21

23

22

21

21

21

21

22

24

29

29

23

*25

30

36

39

39

42

43

43

42

45

49

36

31

35

32

40

43

44

43

Apr.

41

43

43

39

35

39

37

37

38

34

34

31

36

46

58

67

77

85

73

93

114

105

90

88

90

88

100

94

98

122

-

Secondfoot-days

757

584

525

26,956

564

636

1,014

1,975

13,351

8,472

3,569

1,942

1,144

34,533

May

159

226

321

422

552

627

682

666

622

514

445

377

336

324

308

305

330

377

449

483

514

506

492

470

466

466

458

402

363

343

346

Maximum

36

21

20

441

25

49

122

682

363

192

115

42

682

June

353

363

356

343

327

330

350

359

340

290

276

260

251

246

260

270

270

252

273

282

302

265

246

241

241

238

231

224

216

207

-

Minimum

2Cie

1C

1C

i:

2]

21

3]

15S

207

77

42

34

1C

Jjly

192

181

176

170

161

157

155

153

147

135

125

118

112

109

107

101

94

90

85

83

85

93

93

80

77

79

79

96

80

77

79

Aug.

79

76

83

77

79

105

63

62

66

69

72

58

56

60

57

54

53

50

48

58

115

65

53

51

46

46

46

63

46

44

42

Mean

24.4

19.5

16.9

73.9

18.2

22.7

32.7

65.8

431

282

115

62.6

38.1

94.6

Sept.

42

40

42

40

42

40

38

41

40

39

38

38

37

36

38

38

39

38

38

37

36

38

38

37

37

37

36

35

35

34

Runoff in 

acre-feet

1,500

1,160

1,040

53,460

1,120

1,260

2,010

3,920

26,480

16,800

7,080

3,850

2,270

68,490

Winter discharge .neasure:.. 

a No gage-height record; di 

Creek near Huntington

made on this day.

rge computed on basis of weather records and records fcr Hunting-ton

Note_._- Stage-discharge relation affected by ice Dec. 19-24, Dec. 28 to Feb. 16 (no gage-height record Jan. 18-21, Jan. 28 to Feb. 1, Feb. 5-13; discharge computed on basis of 2 discharge measurements, 

weather records, and records for Huntington Creek n~- ir HI ntington) .
DIRTY DEVIL RIVER BASIN 269

Fremont River near Bicknell, Utah

Location.- Staff gage, lat. 38" 18', long. 111°31', in NE£ sec. 7, T. 29 S., R. 4 E., 500 

reet upstream from/ highway bridge, 1,500 feet downstream from Torrey Caral and Mill 

ditch, i mile downstream from Government Creek, and 3 miles southeast of Bicknell.

Drainage area.- 776 square miles.

Records available.- May 1909 to December 1912 (published as Fremont River rear Thurber), 

uctober 1937 to September 1947 (1944-46 fragmentary).

Average discharge.- 10 years (1909-12, 1937-43, 1947), 95.3 second-feet.

Extremes.- Maximum discharge observed during year, 186 second-feet Apr. 15; minimum 

ocserved, 55 second-feet July 26.

1909-12, 1937-47: 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 

second-feet; minimum observed, 18 second-feet June 2, 4, 13-15, 17, 18, 1912.

Remarks.- Records fair. Records include flow of Torrey Canal and Mill ditch and represent 

now of Fremont River above these diversions. Discharge computed by combining flow in 

canals with that in river below canals. Gages read once daily except as noted. Several diversions above station for irrigation. Plow affected by Fish Lake and Johnson and 

Forsythe Reservoirs.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?

3

4

5

6

7

8

9

10

11

1?.

13

14

15

17

18

19

20

?.l

??

73

?.4

25

?.fi

7.7

78

?.9

30

31

Oct.

84

91

84

88

91

97

90

94

94

91

89

89

92

93

94

89

90

88

89

85

85

91

85

86

82

86

86

84

100

88

85

Nov.

87

81

84

97

97

94

97

103

104

98

105

105

116

123

121

105

102

105

106

111

116

112

123

119

116

108

112

108

108

108

-

Dec.

Ill

105

105

108

105

108

116

108

105

108

108

108

*108

114

107

107

110

101

107

110

104

104

104

104

110

114

114

b!05

blOO

b90

b90

Jan.

91

94

b94

b94

94

97

97

94

91

91

94

97

94

b93

*b93

b90

b90

b90

t>94

97

97

94

97

104

104

110

107

107

blOS

blOO

b!02

Feb.

104

101

104

107

110

114

110

107

107

107

110

110

110

114

110

114

114

110

*107

110

107

110

110

110

110

114

107

107

-

_

-

Month

December . ..................... ............

Calendar year 1946 ......... ............

September. .... .............. ...........

Water year 1946-47 ...... ...............

Mar.

104

114

110

107

107

107

106

111

110

105

107

124

110

94

110

107

107

107

105

104

104

106

103

101

94

92

92

92

95

99

126

Apr.

115

118

108

95

95

101

101

88

97

88

81

85

81

85

186

178

160

142

116

76

76

80

80

83

V5

76

78

75

77

77

-

Secondfoct-days

3,298

36,784

2,480

32,799

May

72

68

71

94

95

95

77

88

86

85

90

90

87

89

88

88

87

86

87

86

70

70

66

64

68

64

67

67

66

62

62

Maximum

123

116

507

110

114

126

95

72

91

186

June

60

62

62

65

65

64

64

64

65

67

71

69

63

60

64

64

68

71

83

102

143

96

86

75

75

77

73

70

67

66

-

Minimum

81

90

57

90

101

92

75

62

55

59

77

55

July Aug.

69 59

70 59

67 61

a72 64

70 66

72 68

58 65

58 63

64 61

68 a76

63 a90

63 a80

64 a79

64 79

64 80

63 79

61 82

61 79

61 79

59 79

59 78

56 78

59 76

58 70

58 70

55 75

58 74

61 70

60 78

60 69

60 69

Mean

106

101

96.6

109

105

99.1

78.5

62.4

82.7

89.9

Sept.

84

91

91

84

84

84

84

84

84

81

81

82

82

82

a81

a83

87

82

88

82

80

77

83

84

a82

a80

79

77

77

80

-

Runoff in 

acre- feet

6,290

6,540

72,950

5,940

6,060

6,470

5,900

4,830

3,840

4,470

4,920

65,060

Winter discharge measurement made on this day. 

a Ho gage-height record; discharge interpolated, or computed on basis of weather rscorde. 

b Stage-discharge relation affected by ice.
270

DIRTY DEVIL RIVER BASIN

Dirty Devil River near Hanksville, Utah

Location.- Water-stage recorder, lat. 38°24', long. 110°41', in SE£ sec. 3, T. 28 S., R. 

11 E., a quarter of a mile downstream from confluence of Fremont and Muddy Rivers and 

2 miles northeast of Hanksville.

Records available.- November 1945 to September 1947.

Extremes.- 1945-46: Maximum daily discharge during period November to September, 500 

second-feet Aug. 24; minimum not determined.

1946-47: Maximum daily discharge during year, 5,000 second-feet Aug. 22; minimum 

not determined.

Remarks.- Records poor November 1945 to September 1946 and fair thereafter. Several diversions above station for irrigation.

Discharge, In second-feet, 1945-47

1945-46

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IT

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

_

_

_

_

-

_

_

-

_

-

.

_

_

_

-

_

_

-

-

-

.

_

_

-

-

.

52

54

52

53

-

Dec.

47

45

40

36

38

49

31

39

44

28

25

31

30

30

K 100

Jan.

100

Feb.

100

130

175

179

182

186

185

190

179

181

185

_

-

Mar.

188

188

190

186

181

173

178

186

194

199

205

202

199

203

187

184

184

184

182

185

193

181

194

192

196

199

197

199

206

212

210

Apr.

208

225

216

203

202

202

203

220

215

217

211

208

210

219

234

233

224

229

222

223

216

223

220

217

217

216

,

I 210

j

-

May

loo

150

75

65

45

39

33

24

17

4

7

14

17

24

26

26

31

28

23

June

19

20

19

14

8

1

1

1

2

1

1

2

2

1

1

1

2

2

7

7

9

9

13

5

6

4

2

3

7

4

-

July

5

6

4

4

5

17

11

4

1

1

6

7

9

18

12

4

4

4

3

6

7

8

10

9

10

10

7

9

15

91

74

Aug.

33

16

12

19

21

13

9

7

10

14

50

300

200

97

96

109

88

66

70

78

300

150

50

500

250

100

70

120

60

62

60

Sept.

60

65

56

48

47

43

43

42

41

38

34

43

60

63

70

76

69

3*

74

70

64

60

60

62

59

58

53

46

47

49

Mote.- Stage-discharge relation Indefinite. 

26 discharge measurements made during period, 

Fremont River near Bicknell.

Discharge computed on basis of Interpolation between 

gage-height record, weather recoris, and records for
COLORADO RIVER BASIN

Discharge, in second-feet, of Dirty Devil River near Hanksville, Utah, 1945-47 Continued

1946-47

Day

1

2

3

4

5

6

7

8

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

52

52

52

52

120

130

98

96

95

88

82

76

72

70

70

70

70

70

70

70

72

76

82

87

88

88

88

115

105

100

Nov.

99

97

96

100

105

104

112

135

180

130

135

140

145

160

150

140

135

140

145

ISO

155

160

170

170

165

160

158

155

152

150

-

Dec.

145

140

137

134

130

133

140

137

133

130

128

125

124

120

115

110

116

102

97

92

89

as

32

30

76

79

77

74

72

70

67

Jan.

57

50

63

67

66

70

73

77

80

.30

78

78

78

76

75

75

74

73

71

67

63

59

57

60

68

78

83

88

93

100

105

Feb.

110

113

118

124

130

136

142

147

152

155

158

160

165

162

160

159

158

157

155

155

155

154

153

152

152

151

150

148

_

-

-

Mar.

145

150

145

143

142

140

140

131

125

120

122

124

123

118

114

112

111

110

109

107

105

104

102

100

98

95

97

100

102

103

104

Apr.

105

105

104

107

108

105

98

90

82

78

74

70

66

64

62

58

55

53

51

50

48

46

43

41

25

30

31

47

40

33

-

Hay

28

22

18

23

60

75

80

100

115

122

250

260

185

130

105

85

48

31

42

28

24

27

21

28

32

36

44

33

42

90

97

June

98

56

43

89

78

50

45

42

17

16

36

30

28

29

30

23

14

14

19

21

1,400

750

520

200

120

100

94

65

53

43

-

July Aug .

27 Z

18 3

16 4

15 50

15 150

30 98

60 61

58 30

90 15

86 150

55 400

25 250

19 185

15 150

15 95

17 60

18 62

14 250

10 55

9 30

8 700

9 5,000

9 400

5 260

4 180

2 130

2 110

1 200

1 1,500

1 210

2 92

Sept.

86

84

90

130

100

90

79

75

71

65

62

64

59

56

57

57

56

54

52

50

48

46

44

44

44

45

46

47

48

50

-

^o_te._- Discharge computed on basis of interpolation between 154 discharge measi 

sar, 'gage-height record, weather records, and records for Premont River near 3ic

Monthly discharge, in second-feet, 1945-47

Month

December 1945. ..............................

Calendar year .......................

March. ......................................

May

September. ..................................

Tht i ,^r - 3d. ......... .....................

December. ...................................

Calendar year 1946 .......................

May. .......................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Secondfoot-days

1,723

-

381

1,674

-

4 193

3,329

36,748

2,292

4,131

3,642

1,969

2,281

4,123

657

10,882

1,899

41,875

Maximum

-

-

212

20

91

-

145

500

105

1S5

150

108

260

1,400

90

5,000

130

5,000

Minimum

_

25

-

_

173

202

4

1

1

7

34

-

67

1

57

110

95

25

18

14

1

2

44

1

Mean

_

56

-

100

136

192

216

69

5.8

12

98

55

-

107

101

74

143

117

66

74

137

21

351

63

115

Runoff in 

acre-feet

_

_

3,420

-

6,150

7,560

11,820

12,840

4,260

345

756

6,010

3,320

56,480

6,600

72,890

4,550

3,190

7,220

3,910

4,520

8,180

1,300

21,580

3,770

83,050
272 ESCALANTE RIVER BASIN

Escalante River near Escalante, Utah

Location.- Water-stage recorder, lat. 37°46', long. Ill"34', in NEj- sec. 9, T. 35 S., R. 

3 E., 2 miles northeast of Escalante and 150 feet below Pine Creek.

Drainage area.- 315 square miles.

Records available.- August 1909 to April 1913. October 1942 to September 1947.

Extremes.- Maximum discharge during year, 1,100 second-feet Aug. 16 (gage height, 5.52 

feet, from floodmark in well), by slope-area method; minimum daily, 1.0 second-foot 

Apr. 10, 11,'12.

1909-13, 1942-47: Maximum discharge, 1,270 second-feet Oct. 18, 1943 (gage height, 

6.60 feet); minimum, 0.1 second-foot Aug. 20, 1946.

Remarks.- Records poor. Many diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

4.0

3.2

a2.5

2.2

3.2

10

aS.O

a4.0

a3.n

a2.5

a2.5

2.2

2.0

2.2

2.0

2.4

2.2

2.2

2.0

2.0

2.0

2.0

2.0

1.4

1.4

1.6

2.2

11

d45

d20

dlO

Nov.

d8.0

d7.0

6.3

5.9

5.9

5.6

5.3

7.4

5.9

4.6

5.6

7.1

11

11

9.8

11

11

14

13

15

14

12

13

16

13

18

19

17

16

16

-

Dec.

14

14

15

25

d30

d!5

11

10

11

9.6

15

16

16

16

14

14

d!5

d!6

d!5

14

13

12

13

11

12

9.6

9.8

9.6

10

d9.5

a3.0

Jan.

> a9.0

^ alO

> all

Feb.

> all

11

14

12

8.4

8.0

8.4

5.0

4.4

5.0

4.8

6.1

13

7.7

5.9

5.0

_

-

Month

October. ...................................

Ncvembe r ....... ................. . . ...

Decembe r ....... ...........................

Calendar year 1946 ......................

January .................................. .

February ............... ........... ......

March. ............. ... ... .......... ....

April. .....................................

MaV ay .......................................

June ......................................

July.. .......... .. .......... ....... ....

August .......... . . .......... ............

September. ......................... . . ...

Water year 1946-47 ... ..................

Mar.

4.6

4.2

3.8

4.0

3.6

3.8

3.8

4.0

3.8

3.6

3.6

3.8

3.8

3.8

3.8

4.0

4.4

4.4

4.8

4.4

4.0

5.0

5.9

5.0

5.3

4.6

4.8

5.3

5.6

5.6

5.3

Apr.

3.8

3.4

2.2

2.4

d2.C

1.8

1.6

1.4

1.6

1.0

fl.O

fl.O

3.6

2.6

3.6

4.2

4.6

4.2

d4.3

d4.4

d4.5

4.6

3.4

2.8

2.2

2.0

3.0

2.2

2.0

1.8

-

Secondfoot-days

160.9

324.4

424.1

3,337.6

312

261 . 7

136 . 4

83 2

863 .2

145.6

149.0

838 . 9

3,797.4

May

2.0

3.6

17

f46

f46

f42

f69

64

52

27

39

d30

d27

25

29

33

30

24

24

32

38

37

29

24

22

18

13

6.8

6.2

4.S

3.0

Maximum

45

19

30

121

14

5.9

4.6

69

14

33

300

10

300

June

4.2

4.8

4.8

4.6

4.6

4.2

3.8

3.6

3.4

4.0

3.8

4.0

4.0

3.4

3.4

3.2

4.2

3.6

d3.3

d3.2

14

9.6

8.4

7.1

7.4

B.5

d4.0

d5.5

f3.4

3.6

Minimum

1,i

4.(

9.C

. 2

4.

3.e

l.C

2.C

3.5

2.e

3.C

2.4

l.C

July

2.8

3.0

3.2

3.2

3.6

33

alO

aS.O

a4.0

a3.5

a3.0

3.0

3.4

4.0

4.8

4.4

4.2

4.2

4.0

4.0

4.0

4.0

3.8

3.8

d3.3

d2.8

2.6

3.4

4.0

3.6

3.4

Aug.

3.2

3.4

3.6

4.2

4. <

3.6

3.6

3.6

f6.2

i4.5

d7.0

d21

=.1.1

a4.0

a3.0

a300

73

f29

19

20

123

f76

f!5

16

10

11

12

f26

f!2

3.7.0

a5.0

Mean

5 . 19

10.8

 > 13.7

9 14

10.1

9 35

4.40

2.77

^4's5

4isi

) 27.1

3.27

10.4

Sept.

a4.0

a3.0

a3.0

a3.o

alO

aS.O

a3.0

a2.8

a2.8

%2.8

a2 . 8

2.8

3.0

3.4

3.2

3.2

3.0

2.8

3.2

3.2

3.0

3.0

3.0

3.0

2.8

2.8

2.6

2.6

2.8

2.4

Runaff in 

acre-feet

319

643

841

6 , 620

6X9

5X9

271

165

1,710

296

1,660 

194

7,530

a No gage-height record} discharge computed on basis of 1 discharge measurement, weather rocorJs, 

and records for stations on nearby streams.

d Doubtful gage-height record; discharge computed on basis of weather records' and records for stations on nearby streams.

f Fragmentary gage-height record; discharge computed on basis of partly estimated gage heights.
SAN JUAN RIVER BASIN 273

San Juan River near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37"22'05", long. 1,06°53'40", in SE£ sec. la, T. 36 

N . , R . 1 W., a quarter of a mile upstream from private highway bridge, half a mile 

upstream from West Fork, 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.

Hecords available.- May 1935 to September 1947.

Average discharge.- 12 years, 132 second-feet.

Extremes.- Maximum discharge during year, 724 second-feet May 10 (gage height, 3.14 feet); 

minimum daily, 14 second-feet Feb. 1-5.

1935-47: 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 excellent above 100 second-feet and good below except those for period 

or ice effect, which are fair. Diversions above station for Irrigation.

Rating table, water year 1946-47, except period of ice effect

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

(Shifting-control method used Aug. 4 to Sept. 30)

0.9 14 1.5 60 2.0 168

1.0 19 1.6 75 2.2 240

1.2 31 1.7 92 2.4 33O

1.3 38 1.8 112 2.9 590

1.4 47 1.9 138

Discharge, in second-feet, water year October 1946 to September 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.

25

30

34

44

68

42

55

55

52

45

32

32

32

30

30

30

30

30

26

27

27

27

27

26

26

25

25

29

306

162

96

Nov.

66

55

44

44

41

34

32

*35

34

33

26

27

28

29

27

24

24

24

23

24

25

25

25

24

23

21

19

20

20

20

-

Dec.

20

19

19

 18

19

19

19

20

19

18

19

19

19

19

20

20

19

17

17

18

18

19

19

19

19

19

18

18

17

17

16

Jan.

16

15

15

15

16

16

16

15

15

*15

15

15

15

16

16

16

16

17

16

16

16

15

15

15

15

16

16

16

15

15

15

Feb.

14

14

14

14

*14

15

16

18

19

19

20

20

20

20

20

21

21

20

20

20

20

21

21

21

21

21

19

19

_

_

-

Month

October ......................... ..........

November . ....................... .........

December . .................................

Calendar year 1946 ........... ..........

January .......... .........................

February. ... .\ ................... . . ....

March. .....................................

April. ........... . . .... ..... ..........

May. ............. ................... .....

June ............. ... . . .................

July. ......................................

August. .......... . ..... ..... ..........

September. ...... ... .......... ..........

Water year 1946-47 ... . ......... .....

Mar.

19

19

20

20

*20

20

20

19

18

18

19

19

19

19

19

21

27

32

34

38

45

52

46

40

37

43

18

57

54

54

55

Apr.

59

72

75

60

51

45

45

43

43

42

40

37

37

47

70

84

106

122

112

150

195

185

178

182

141

122

120

106

98

104

-

Hay

162

276

390

425

435

465

365

405

480

552

440

370

390

405

395

365

345

350

340

355

360

370

360

340

321

360

330

330

321

298

330

forays -"I 

1,525 306

896 66

576 20

23,251.9 440

481 17

522 21

971 57

2 771 195

11 430 552

8,021 415

2 252 144

E[ 503 308

1,938 244

33,886 552

June

326

370

355

365

360

370

365

410

415

400

355

285

202

202

236

232

213

262

195

217

276

240

182

162

159

185

185

182

162

153

-

Minimum

25

19

16

8.2

15

14

18

37

153

30

27

32

14

July

141

144

144

138

130

120

115

102

92

87

75

70

72

69

75

63

56

56

52

46

44

42

44

39

^6

35

37

35

32

31

30

Aug.

29

29

27

41

59

45

62

63

57

55

43

51

60

64

57

78

117

92

117

106

100

308

175

130

102

85

89

72

64

63

63

Sept.

59

51

50

47

43

42

37

41

55

54

45

39

37

35

33

32

51

244

171

138

106

87

75

68

60

55

48

47

45

43

-

Hoar- Runoff in Mear acre-feet

43.2 3,020

29 .9 1 780

is! 6 l|l40

65.7 46,120

15.5 954

18.6 1,040

31.3 1,930

9^.4 5 500

369 22,670

267 15,910

72.6 4,470

80.7 4,960 

64.6 3,840

9?. 8 67,210

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 12 to Mar.
274 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 

M -, R. 2 W., under lower highway bridge 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 1947.

Average discharge^- 12 years (1935-47), 390 second-feet.

Extremes.- Maximum discharge during year, 1,750 second-feet, May 10 (gage height, 5 31 

I'eet) ; minimum daily, 54 second-feet Jan. 21-23, Jan. 30 to Feb. 3.

1911-14, 1935-47: Maximum discharge, 5,790 second-feet May 13, 1941 (gage height, 

7.92 feet), from rating curve extended above 4,500 second-feet: minimum daily, 19 

second-feet Dec. 10, 1945.

Maximum stage known, 17.8 feet Oct. 5, 1911 (discharge, about 25,000 secund-feet).

Remarks.- Records good except those for July and those for period of no gage-height 

record, which are fair. Diversions above stations for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

68

83

97

99

164

115

184

153

170

144

99

99

99

94

97

94

90

 87

74

81

79

76

76

74

72

72

72

87

592

402

249

Nov.

181

157

153

141

132

126

120

112

117

104

85

92

99

102

112

87

87

85

85

92

99

90

87

102

92

74

90

97

104

107

-

Dec.

107

107

99

102

104

104

104

90

74

65

74

71

69

72

72

71

65

69

56

57

61

62

65

69

72

69

74

69

61

56

58

Jan.

55

61

61

55

56

61

62

57

56

55

56

56

59

57

58

55

55

57

56

55

54

54

54

55

56

55

56

56

55

54

54

Feb.

54

54

54

55

57

64

69

72

72

72

68

62

71

69

74

85

92

87

72

74

69

74

79

83

79

79

72

71

_

_

-

Month

October ....................................

November ......................... .........

December ........................ ..........

Calendar year 1946 ......................

January. ................................. .

February. ......................... . . . ...

March .....................................

April ......................................

May. .......................................

June .......................................

July. .................................. ...

August .....................................

September . .................................

Water year 1946-47 ............ .........

Mar.

57

61

83

69

66

68

64

60

64

63

69

63

57

63

60

66

82

101

115

130

154

191

173

136

124

145

166

206

188

180

184

Apr.

191

234

242

198

163

148

154

139

139

133

127

112

112

130

195

250

297

365

328

430

554

527

491

50b

383

328

333

310

271

267

-

Secondfoot-days

4,042

3,211

2,348

66,457

1,746 

1 , 983

3,308 

8,057

33,189

6 ) 035

5)967

103,533

May

402

718

1,030

1,300

1,330

1,360

1,290

1,330

1,430

1,490

1,460

1,200

1,100

1,140

1,080

972

909

860

842

895

944

979

1,020

909

909

1,030

1,100

1,140

944

986

1,090

Maximum

592

107

1,150

62

92

206

554

1,490

1,400 

491

729

702

1,490

June

1,050

1,200

1,260

1,150

1,150

1,140

1,310

1,400

1,380

1,280

1,070

881

758

74O

770

776

752

824

734

724

80O

788

690

652

614

619

619

608

564

522

-

Minimum

68

74

56

26

54 

54

57

112

402

522

69

64 

71

54

Jily

491

455

430

420

369

324

324

284

234

206

184

173

160

166

170

151

148

133

133

115

104

99

118

96

87

82

78

82

77

73

69

Aug.

66

66

64

73

166

124

106

121

115

112

92

127

136

136

136

163

276

280

284

297

259

729

718

501

360

284

271

218

188

184

170

Mean

130

107

75.7

182

56.3 

70.8

107

269

1,071

894

195

220 

199

284

Sept.

170

157

139

139

130

127

112

106

157

163

133

115

101

89

78

71

82

638

702

a500

a400

a300

a230

a210

a!85

3165

3155

3145

3135

3133

Runoff in 

acre-feet

8,020

6,370 

4,660

131,800

3,460

3 930

6, 560

15 980 

65^830

53,210

11,970

13,530 

11,840

205.400

a No gage-height record; discharge computed on basis of records for station nraar Pagosa Springs.
SAN JUAN RIVER BASIN 275

San Juan River at Rosa, N. Hex.

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 1947 in reports of Geological Survey. 

September lyau to December 1931 in reports of State engineer.

Average discharge.- 27 years (1920-47), 1,186 second-feet.

Extremes.- Maximum discharge during year, 5,340 second-feet Aug. 22 (gage height, 5.30 

reet); minimum daily, 87 second-feet Dec. 31.

1930-47: Maximum discharge, 17,LOO second-feet Apr. L'3, 1942 (gage height, 8.bu 

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 periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?

3

4

5

6

7

n

9

10

11

12

13

14

15

16

17

18

19

20

?1

?.?.

23

24

25

26

?7

2fl

?9

30

31

Oct.

173

178

286

286

450

418

767

531

504

468

414

324

304

286

276

276

276

268

253

226

232

226

223

220

214

205

211

220

720

1,500

746

Nov.

545

454

390

321

335

324

304

321

342

314

286

241

304

304

328

314

247

253

244

247

272

272

259

304

324

272

241

282

307

314

-

Dec.

304

296

282

268

279

307

318

304

250

209

175

212

208

205

220

220

208

192

176

114

127

166

178

189

214

223

247

229

170

109

87

Jan.

96

124

 151

b!30

b!40

151

158

*170

176

b!70

blSO

b!60

b!70

b!60

b!40

allO

*b!30

b!4o

b!60

blSO

b!70

*b!60

b!70

b!60

blSO

b!70

blSO

b!90

*b!70

b!60

blSO

Feb.

b!60

b!70

blSO

b!90

*b200

b220

b250

b230

b280

b320

b280

*b260

247

247

256

314

349

402

*328

282

259

247

259

272

282

290

282

276

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. ..................... . . ...... ...

April .......... .............. ....... ....

Mnv

July.. ........................ ............

September. .................... ...........

Water year 1946-47 ......... ............

Mar.

200

160

189

238

229

214

232

211

226

250

310

346

279

300

286

304

402

560

612

661

707

854

812

655

540

552

645

746

720

665

675

Apr.

655

710

764

710

595

536

518

513

486

482

464

426

402

426

540

690

788

990

927

1,010

1,380

1,390

1,330

1,240

1,190

990

934

920

884

824

-

Second 

foot-days

6,686

183,155

7 332

23 714

20,167

275,256

May

872

1,430

2,380

3,040

3,120

3,440

3,040

3,120

3,440

3,870

4,330

3,520

3,040

3,200

2,960

2,660

2,520

2,320

2,250

2,120

2,250

2,320

2,450

2,380

2,120

2,320

2,520

2,660

2,250

2,120

2,380

Maximum

318

2,620

2 950

2,490

4,330

June

2,120

2,450

2,810

2,450

2,520

2,380

2,740

3,120

2,960

2,880

2,520

a2,100

al,800

al,500

al,450

al,600

al,6oO

1,670

1,620

1,500

1,550

1,770

1,500

1,370

1,230

1,230

1,190

1,180

1,080

1,000

-

Minimum

87

87

304

87

July

920

878

842

848

800

730

740

788

680

610

540

486

438

422

410

410

378

356

342

307

279

259

256

276

241

220

197

183

189

168

148

Aug.

135

124

118

142

523

508

335

342

342

324

314

310

422

540

446

430

1,210

1,220

1,110

934

1,150

2,940

2,950

1,670

1,190

941

842

725

655

645

625

Meal

216

502

672

754

Sept.

585

531

490

459

450

422

406

374

438

565

477

426

378

349

324

304

356

1,390

2,490

1,820

1,320

1,010

842

725

650

595

550

518

477

446

-

Runoff in 

acre- feet

13,260

363,300

40,000

545,900

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis' of records for stations at Pagosa Springs, 

Colo., and Blanco, N. Mex.

b Stage-discharge relation affected by ice.
dlb 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 

H . , R. 9 W., half a mile upstream from highway bridge, 1 mile upstream from Canyon 

Largo, and Ij miles east of Blanco.

Drainage area.- 3,320 square miles.

Records available - December 1908 to October 1910 (gage heights only January to October 

lyiU) ana October 1930 to September 1947 in reports of Geological Survey. December 

1908 to December 1909 and June 1927 to December 1931 in reports of State engineer.

Average discharge.- 19 years (1928-47), 1,469 second-feet.

Extremes.- Maximum discharge during year, 10,200 secund-feet Aug. 22 (gage height, 6.50 

reet); minimum daily, 140 second-feet Jan. 1.

1930-47: Maximum discharge, 23,300 second-feet May 14, 1941 (gage height, 8.46 

feet); minimum daily, 17 second-feet Aug. 18, 24, 25, 1939.

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

which are fair. Diversions above station for irrigation. Records of water analyses 

for the water year 1947 are given in Water-Supply Pa^er 1102.

Discharge, in second-feet, water year October 1946 to Septembsr 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.

280

293

307

425

430

978

1,090

887

684

702

614

515

500

406

351

335

310

297

280

263

243

243

234

224

232

237

224

232

269

1,500

1,060

Nov.

720

542

490

406

339

343

339

328

402

367

339

304

280

335

339

363

332

273

273

273

283

310

297

304

398

355

290

283

332

380

-

Dec.

380

425

371

328

318

339

347

355

339

269

246

211

231

232

234

226

*236

233

189

tiso

163

169

223

252

249

290

*355

351

242

200

b!70

Jan.

tl40

*181

206 tiso

t200

b220

b230

b250

*252

257

234

232

246

b230

b210

*b!80

b!50

b!70

b200

b230

b220

b210

*b230

a220

a200

a220

a240

a250

a250

*b230

b200

Feb.

t220

b230

b250

b260

t270

*300

334

372

355

430

384

363

355

328

402

435

500

500

440

355

310

300

286

293

300

300

314

328

_

_

-

Month

October. ................. .. ...... ...

November . ............ ........... .... . . .

December ...................................

Calendar year 1946 ...................

Jsnuary. ............................. ... .

February ............................ . .

March. .............................. . .

April. .............................. ...

May.......................... .'......... ..

June ..................... ..............

July. ......................................

August ................... .............

September. .............. .................

Water year 1946-47 ............... . .

Mar.

283

232

209

300

318

304

300

307

297

310

332

398

393

351

371

347

371

510

666

714

774

859

958

838

666

597

678

744

831

708

654

Apr.

660

624

720

750

660

536

495

510

460

460

475

480

445

375

375

495

642

738

908

804

1,080

1,320

al,250

al,200

1,180

950

852

873

859

786

-

Secondfoot-days

14,645

10,619

8,323

205,651

6,668

9,514

15,620

21,962

94,190

69,060

18,527

40,749

26,520

336,397

May

780

1,190

1,930

2,850

3,220

3,490

3,310

3,140

3,310

4,200

5,370

4,750

3,680

3,400

3,310

3,310

2,980

2,690

2,620

2,550

2,620

2,690

2,760

3,060

2,760

2,900

3,060

3,310

3,140

2,830

2,980

Maximum

1,500

720

425

2,550

257

500

958

1,320

5,370

3,580

1,130

5,640

2,740

5,640

June

3,140

3,140

3,310

3,140

3,060

3,060

3,220

3,560

3,580

3,490

3,140

2,690

2,300

2,020

1,900

1,960

1,750

1,650

1,900

1,700

1,650

2,020

1,850

1,600

1,460

1,420

1,420

1,370

1,320

1,240

-

Minimum

224

273

150

150

140

220

209

375

780

1,240

269

263

455

140

July

1,130

1,060

998

990

990

943

915

901

845

714

648

654

608

553

526

520

510

475

450

425

420

388

406

343

355

328

297

300

293

273

269

Aug.

283

266

263

417

720

958

744

594

751

597

586

531

602

780

732

991

1,490

2,420

2,180

1,720

1,340

5,640

5,520

2,300

1,750

1,420

1,190

1,090

966

958

950

Mean

472

354

268

563

215

340

504

732

3,038

2,302

598

1,314

884

922

Sept.

845

804

750

678

614

586

692

485

520

678

696

636

575

536

495

465

455

897

2,740

2,180

1,750

1,420

1,170

1,040

922

831

BIO

774

762

714

-

Runoff in 

acre feet

29,050

21,060

16,510

407,900

13,230

18,870

30,980

43,560

186,800

137,000

36,750

80,820

52,600

667,200

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of records for stations at Rosa and at Farmington.

t Stage-discharge relation affected by ice.
SAN JUAN RIVER BASIN 277

San Juan River at Farmington, N. Mex.

Location.- Water-stage recorder, lat. 36 0 43', long. 108°13', in SE£ sec. 17, T. 29 N., R. 

13 W.y 360 feet downstream from highway bridge, 4,000 feet downstream from Animas 

River, and 1 mile west of Farmington.

Drainage area.- 6,580 square miles.

Records available - June 1904 to September 1906, September 1912 to December 1914, and 

uctober 193U to September 1947 in reports of Geological Survey. September 1912 to 

July 1918 and November 1921 to December 1931 in reports of State engineer.

Average discharge.- 24 years (1922-25, 1926-47), 2,498 second-feet.

Extremes.- Maximum discharge during year, 15,000 second-feet Aug. 22 (gage height, 5.72 

reetjy minimum daily, 330 second-feet Jan. 17.

1930-47: Maximum discharge, 32,800 second-feet Sept. 28, 1935 (gage height, 8.0 

feet, estimated), from rating curve extended above 18,000 second-feet; irinimum daily, 

-27 second-feet Aug. 22, 1939.

Remarks.- Records good except those for period of ice effect, which are fair. Diversions 

aoove station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?,

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

??

23

24

25

26

27

?.R

29

30

31

Oct.

550

612

678

796

846

937

1,280

1,260

1,080

1,020

950

833

784

772

700

667

645

612

580

570

530

5EO

510

481

500

510

510

530

560

1,390

1,630

Nov.

1,110

1,050

924

846

736

724

678

678

760

760

700

656

590

634

689

667

678

623

580

590

623

634

667

667

724

760

678

656

667

678

-

Dec.

700

724

736

667

645

656

656

656

667

601

570

540

*530

580

570

580

580

b560

b500

*b450

b490

472

520

570

612

623

700

*784

623

b520

*b460

Jan.

b400

b450

b470

b390

b360

b450

*b600

b540

b500

b490

b500

b500

b520

*b550

b480

b400

b330

b40o

b450

b520

*b500

b500

b520

t>490

b500

b520

b54O

b560

b540

b480

*b450

Feb.

b470

bSOO

b550

*601

612

678

700

736

760

784

712

700

689

678

678

796

784

772

760

724

656

601

601

601

612

623

634

689

_

_

-

Month

December ...................................

Calendar year 1946 ......................

April. ...... .: ................. ......... .

May. .......................................

September ....... ..........................

Water year 1946-47 .......... ...........

liar.

656

560

500

510

612

623

612

590

580

570

601

667

712

656

645

623

612

748

963

963

1,080

1,150

1,260

1,310

1,110

885

859

976

1,050

1,030

963

Apr.

924

898

950

1,030

911

859

808

772

736

736

736

700

700

656

590

772

989

1,090

1,310

1,280

1,430

1,880

1,940

1,920

1,920

1,580

1,320

1,310

1,260

1,150

Secondfoot-days

18,542

4O9.O85

47,845

654,857

May

1,110

1,680

2,830

4,820

6,650

6,850

6,650

5,700

5,880

7,700

8,820

8,150

6,260

5,700

5,880

5,700

5,160

4,990

4,820

4,820

4,820

5,340

5,520

5,700

4,990

5,160

5,880

6,450

6,260

5,340

5,160

Maximum

1,110

784

6,260

3,300

11,100

June

5,520

5,520

6,260

6,260

5,700

5,520

5,700

7,050

7,920

7,700

7,250

5,880

4,660

3,770

3,710

4,220

4,470

4,660

4,400

3,860

4,340

4,440

3,830

3,230

2,950

3,150

3,680

3,770

3,770

3,630

Minimum

450

336

500

540

911

330

July

3,460

3,280

3,050

2,830

2,830

2,760

2,980

3,080

2,760

2,530

2,210

2,030

1,810

1,620

1,510

1,840

1,620

1,340

1,250

1,190

1,140

1,040

1,000

937

859

796

724

667

645

601

540

Aug.

490

463

427

481

1,080

1,700

1,280

1,070

1,240

989

911

898

808

1,140

1,140

1,580

3,110

3,570

3,540

3,660

2,900

9,670

11,100

5,930

4,120

3,600

3,020

2,640

2,270

2,230

2,170

Mem

598

1,121

1,595

1,794

Sept.

1,880

1,830

1,670

1,530

1,370

1,240

1,280

1,050

1,580

1,240

1,420

1,420

1,320

1,050

1,070

924

911

1,000

3,100

3,300

3,100

2,570

2,090

1,750

1,670

1,470

1,340

1,310

1,220

1,140

Runoff in 

acre feet

36,780

811,400

94,900

1,299,000

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
278 SAN JUAN RIVER BASIN

San Juan River at Ship Rock, N. Mex.

Location.- Water-stage recorders, lat. 36°47'35", long. 108°43'55", in SW£ sec. 22, T. 30 

N., R. 18 W. , 3 miles northwest of Ship Rock and 6 miles downstreati 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). Datum of 

middle and upstream gages is 1.85 feet higher.

Drainage area.- 12,800 square miles.

Records available - January to October 1911, October 1930 to Septembe- 1931, and October 

laaa to September 1947 in reports of Geological Survey. January to uctuber 1911 and 

Novemlftr 1915 to December 1931 in reports of State engineer.

Average discharge.- 27 years (1916-20, 1921-25, 1927-31, 1932-47), 2,763 second-feet.

Extremes.- Maximum discharge during year, 29,300 second-feet Aug. 22 (gage height, 8.40 

feet, middle gage); minimum daily, 350 second-feet Jan. 17.

1930-31, 1932-47: 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 second-feet 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 seeond-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 fair except those for periods of ice effect or no gage-height record, 

wnich are poor. Diversions above station for irrigation.

Discharge, in second-feet, water'year October 1946 to September 1947

Day

1

?,

X

4

5

6

7

8

9

10

11

1?

13

14

15

16

17

1R

19

20

?1

22

23

24

25

?F>

27

?R

29

30

31

Oct.

580

575

595

677

812

840

1,280

1,380

1,150

1,000

1,020

952

888

880

770

704

671

644

597

607

573

559

540

520

a500

3530

a520

3540

550

674

2,050

Nov.

1,320

992

872

904

840

764

728

710

752

819

758

722

694

677

812

784

770

740

677

677

682

704

728

734

791

819

758

704

710

740

~

Dec.

777

791

819

752

722

704

716

722

728

694

638

606

585

628

616

616

606

611

606

545

570

535

535

*S95

628

644

699

758

b680

*b500

b460

Jan.

b430

b400

b470

b450

b390

*b380

b480

b560

b520

b500

b520

b520

b530

*b560

b540

3450

3350

a380

a500

*b560

3550

3540

3570

3540

a530

b540

b570

 628

590

560

530

Feb.

525

555

590

606

628

672

693

719

784

798

848

752

734

722

682

833

856

812

798

764

688

644

628

616

622

638

660

699

_

.

-

Month

December. ..................................

Calendar year 1946 ...................

April ............................... ... .

May. .......................................

September ..................................

Hater year 1946-47 ......... ..... .....

Mar.

710

655

585

545

600

638

611

611

622

616

616

638

699

694

638

644

633

655

798

992

1,080

1,150

1,330

1,480

1,270

1,040

936

1,030

1,120

1,190

1,050

Apr.

960

976

960

1,050

1,050

936

812

746

734

704

682

677

644

595

540

520

677

840

1,150

1,260

1,260

1,760

2,120

1,930

1,930

1,760

1,540

1,380

1,340

1,180

-

Secondfoot-days

20,086

416,966

53,122

696,490

May

1,050

1,310

3,060

5,600

6,420

6,650

6,880

5,800

5,600

8,000

11,000

10,500

6,650

5,200

5,800

5,600

5,400

4,820

4,480

4,3QO

4,650

4,650

5,200

5,600

4,820

5,000

5,800

6,200

6,420

5,000

5,000

Maximum

819

6,080

3,650

19,400

June

5,400

5,200

5,800

6,200

5,600

5,400

5,400

6,650

8,000

7,780

7,550

6,000

4,200

3,620

3,240

3,860

4,480

4,480

4,040

3,830

4,650

4,820

4,010

3,400

3,140

3,370

3,710

3,650

3,600

3,570

-

Minimum

460

340

952

350

July

3,370

3,350

3,240

3,000

2,970

3,000

3,120

3,220

3,070

2,620

2,480

2,140

2,040

1,720

1,540

1,720

1,680

1,440

1,280

1,200

1,140

1,040

960

944

819

746

728

628

555

520

468

Aug.

423

383

372

383

588

1,560

1,520

1,090

991

1,E80

968

888

819

936

1,080

1,310

7,210

5,280

4,330

4,690

3,060

18,400

19,400

8,990

4,650

3,600

3,000

2,640

2,560

2,880

2,790

Mean

648

1,142

1,771

1,908

Sept.

2,390

2,220

1,860

1,770

1,5-60

1,400

1,470

1,440

1,470

1,540

1,580

1,650

1,600

1,490

1,230

1,130

1,040

952

2,730

3,650

3,240

2,620

2,370

2,060

1,820

1,610

1,470

1,330

1,270

1,160

-

Runoff in 

acre- feet

47,960

39,840

827,000

105,400

1,382,000

* Winter discharge measurement made on this dsy. 

a Ho gage-height records discharge computed on bssls of records for stations EV. Fa 

near Bluff, Utah.

6 Stage-dlschsrge relstlon sffected by Ice.

"ln>jton and
SAN JUAN RIVER BASIN 279 

San Juan River near Bluff, Utah

Location.- Water-stage recorder, lat. 37°09', long. 10-9°52', in SW£ sec. 7, T. 42 S., R.

19 E., 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-orofile map).

Drainage area.- 23,000 square miles.

Records available.- October 1914 to September 1917, March 1927 to Septembe" 1947.

Average discharge.- 23 years (1914-17, 1927-47), 2,862 second-feet.

Extremes.- Maximum discharge during year, 27,700 second-feet Aug. 23 (gage height, 17.80 

feet); minimum daily, 154 second-feet Jan. 20.

1914-17, 1927-47: 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. Diversions above station for irrigation. No dive-sion between 

station and mouth of river. Records of water analyses and sediment loais for the 

water year 1947 are given in Water-Supply Paper 1102.

Discharge, in second-feet, water year October 1946 to September 1947

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.

719

943

817

686

732

908

964

1,190

1,700

1,380

1,270

1,240

1,150

1,110

1,010

1,040

999

331

331

771

738

712

650

674

609

509

632

650

632

700

324

Nov.

2 , 330

1,720

1,390

1,120

999

936

908

1,330

1,250

1,040

971

1,010

887

831

790

873

964

964

943

824

732

732

738

859

887

894

923

915

845

745

-

Dec.

790

810

859

880

894

845

852

852

817

838

784

738

686

644

656

686

674

632

620

662

614

592

586

609

592

680

771

771

915

838

f810

Jan.

f644

f515

f434

f338

f!87

f226

373

351

404

564

581

f500

626

581

494

f484

f429

f325

f205

f!54

f313

f458

f662

f632

662

603

693

771

887

f745

f662

Feb.

f620

f609

603

693

700

838

901

908

943

943

971

1,060

887

817

810

824

810

946

1,010

887

894

817

745

738

726

686

686

700

_

_

-

Month

October ....................................

November . ........................ .........

December. ..................................

Calendar year 1946 ......................

January. ................................. .

February ........................ ..........

March.... ..................................

April. ....... .............................

May. .......................................

June . . ...... .............................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Uar.

732

824

797

700

650

626

674

712

644

656

668

680

644

644

726

693

693

700

712

680

845

985

1,100

1,190

1,420

1,230

1,140

957

950

1.-060

1,170

Apr.

1,190

1,050

1,030

1,070

1,070

1,140

1,080

1,030

880

790

859

810

778

764

693

650

548

537

310

1,090

1,450

1,250

1,720

2,040

1,980

2,000

1,790

1,550

1,390

1,250

Secondfoot-days

27,721

30,356

22,997

447,230

15,503

22,790

25,902

34,289

165,840

139,130

55,269

147,971

62,690

750,458

May

1,190

1,120

1,080

2,580

4,830

5,820

6,220

6,710

6,010

6.26O

6,730

10,800

9. 690

6,980

6,190

6,190

5,870

5,290

4,850

4,530

4,450

4,720

5,010

5,340

5,580

4,780

4,860

5,530

6,040

5,850

4,740

Maximum

1,700

2,330

915

6,130

887

1,060

1,420

2,040

10,800

7,460

3,360

23,800

4,500

23,800

June

4,750

5,320

4,880

5,660

5,880

5,170

5,170

5,150

6,370

7,440

7,460

7,060

5,920

4,590

3,690

3,450

3,810

4,530

4,420

4,020

3,660

4,000

4,290

3,810

3,160

2,850

2,800

3.2OO

3,310

3,310

Minimum

60

73

58

33

15

60

62

53

1,08

2,80

50

31

1.06C

15

July

3.36C

3,20C

3.02C

2.89C

2.57C

2.76C

2,62C

2.90C

3, 11C

2.78C

2.39C

2,27C

1,98C

1.83C

1.61C

1,530

1,520

1.51C

1,290

1,180

1,140

1,110

1,060

929

859

852

726

644

603

526

500

Aug.

448

404

373

317

1,400

967

784

1,460

1,230

1,290

1,910

1,500

1,020

1,070

978

1,210

12,900

12,500

6,600

4,990

6,290

19,200

23,800

16,600

7,160

4,880

4,160

3,190

2,770

2,730

3,840

Mean

3 894

2 1,012

5 742

t 1,225

1 500

3 814

3 836

7 1,143

) 5,350

D 4,638

D 1,783

7 4,773

) 2,090

t 2,056

Sept.

2,950

2,460

2,290

2,020

1,960

1,770

1,490

1,520

1,880

3,810

2,130

1,550

1,690

1,690

1,560

1,330

1,250

1,170

1.06C

4,500

3,920

3,470

2,760

2,340

2,150

1,870

1,650

1,560

1,480

1,410

Runoff in 

acre- feet

54,980

60,210

45,610

887,000

30,750

45,200

51,380

68,010

328,900

276,000

109 , 600

293,500

124,300

1,488,000

f Fragmentary gage-height records discharge computed on basis of partly estimated jage heights 

852060 O - 49 - 19
280 SAN JUAN RIVER BASIN

West Fork San Juan River above Borris Lake, near Pagosa Surings, Colo.

Location.- Water-stage recorder, lat. 37°29'00", long. 106°55<45", in sec. 36, T. 38 N., 

R. 1 W., half a mile downstream from Beaver Creek, ij miles upstream from Borns Lake, 

and 16 miles northeast of Pagosa Springs.

Drainage area.- 41.2 square miles.

Records available.- April 1937 to September 1947.

Average discharge.- 10 years, 82.4 second-feet.

Extremes.- Maximum discharge during year, 565 second-feet June 7 (gage height, 3.85 

feet]; minimum daily, 12 second-feet Jan. 29-31, Feb. 1, 24-28, Mar. 1-7.

1937-47: Maximum discharge, 1,100 second-feet June 3, 1938, from rating curve extended above 600 second-feet; maximum gage height, 4.87 feet June 23, 1941; minimum 

daily discharge, 7.2 second-feet Feb. 21, 1939. 

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 or regulation.

Discharge, in second-feet, water year October 1946 to September 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.

E9

43

38

49

46

49

64

61

61

50

39

35

34

34

34

33

33

32

30

31

31

31

31

29

28

27

28

37

148

75

52

Nov.

41

36

33

31

29

29

28

26

29

28

27

26

24

24

24

24

26

25

26

24

22

22

22

24

22

24

26

29

30

30

-

Dec.

30

29

29

28

27

27

26

22

23

b22

22

22

22

22

22

21

22

20

b!7

18

b!8

18

17

16

16

16

16

15

b!5

14

13

Jan.

13

13

14

14

13

13

14

14

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

Feb.

12

13

13

14

14

14

15

15

15

14

13

13

13

14

14

14

14

14

13

13

13

13

13

12

12

12

12

12

_

_

-

Month

October ....................................

November ...................................

December. ..................................

Calendar year 1946 ......................

January

February ..................................

March. ..................... ...............

April ...................... ..............

May. .......................................

June .......................................

July. ......................................

August ....................................

September . .................................

Water year 1946 47 .... . ...............

Mar.

12

12

12

12

12

12

12

13

13

13

14

14-

14

14

14

14

14

15

16

18

21

22

21

19

19

23

26

27

25

26

24

Apr.

23

30

32

26

20

20

18

19

18

18

17

17

18

22

25

30

36

38

37

54

68

60

61

62

48

45

43

42

40

44

Secondfoot-days

1 'sn 342

645

19,615.4

404

373

523

1,031

6,213

7,458

1,825

1,975

2,389

24,989

May

66

100

150

180

190

220

200

200

220

230

200

185

170

179

162

144

137

135

144

176

204

237

232

204

237

264

300

291

255

294

307

Maximum

148

41

30

414

14

15

27

68

307

435

124

226

300

435

June

307

363

367

347

343

355

415

435

423

367

291

220

186

199

212

212

207

212

181

186

199

181

169

156

158

167

167

156

144

133

Minimum

27

22

13

7.

12

12

12

17

66

133

22

20

32

12

Julv

124

118

113

111

100

91

95

83

77

71

66

58

55

53

50

50

49

46

42

38

36

38

42

34

31

29

30

27

24

22

22

Aug.

20

20

20

40

41

31

27

25

23

27

22

40

34

35

42

59

68

75

72

70

76

226

196

142

107

93

83

73

65

63

60

Mean

43.3

27.0

20.8

5 53.7

13.0

13.3

16.9

34.4

200

249

58.9

63.7

79.6

68.5

Sept.

58

52

49

46

43

42

41

48

55

54

48

43

39

37

35

32

87

300

285

199

144

111

94

80

73

67

62

58

54

53

Runoff in 

acre feet

2,660

1,610

1,280

38,910

801

740

1,040

2,040

12,320

14,790

3,620

3,920

4,740

49,560

b Stage-discharge relation affected by Ice.

Mote. Mo gage-height record Oct. 12-18, Dec. 30 to May 13 (stage-discharge relation affected by 

ice during part of period); discharge computed on basis of 4 discharge measurements made at point 3 

miles downstream and records fop West Pork San Juan River near Pagoaa Springs and San Juan Hiver at 

Pagosa Springs.
SAN JUAN RIVER BASIN 281

West Pork San Juan River near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°22'30", long. 106°53'45", in N^ sec. 12, T. 36 

N., R. 1 W., 30 feet downstream from highway bridge, 0.6 mile upstream from mouth, and 

10 miles northeast of Pagosa Springs. Datum of gage is 7,605.57 feet above mean sea 

level, datum of 1929.

Drainage area.- 87.9 square miles.

Records available.- April 1935 to September 1947.

Average discharge.- 12 years, 166 second-feet.

Extremes.- Maximum discharge during year, 984 second-feet June 7 (gage height, 3.75 feet); 

minimum daily. 29 second-feet Feb. 28, Mar. 1, 3-5.

1935-47: Maximum discharge, 2,300 second-feet June 23, 1941 (gags height, 5.83 

feet), from rating curve extended above 1,300 second-feet; minimum daily, 10 secondfeet Dec. 19, 1937.

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. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

34

44

43

51

SI

51

83

72

74

55

47

49

46

45

45

43

44

41

39

4C

39

40

39

33

38

37

37

45

289

187

114

Nov.

89

77

68

66

51

SO

60

53

53

51

52

. 52

50

49

49

50

53

51

53

56

47

49

52

49

47

49

62

53

57

56

-

Dec.

58

58

57

*61

55

51

51

52

51

b41

b43

b44

t> 44

b43

b43

b42

b4L

b41

b36

b38

b39

40

41

41

42

42

42

40

39

36

36

Jan.

35

37

37

36

35

38

40

40

38

*3S

36

36

38

36

37

36

36

37

36

35

35

34

33

33

33

33

34

34

33

32

32

Feb.

31

31

31

31

*32

33

35

35

34

31

31

31

32

33

35

36

33

31

31

30

31

31

32

32

30

30

30

29

_

_

-

Month

October. ...................................

November. ........................ ... ....

December. ............. .................. .

Calendar year 1946 ................ . .

January. ............................ ... .

February. ......... ......... ........ ... .

March. . ........................... . .....

April. ............ ........... . . ...... .

May. ......................................

June .................. . . . ..... .........

July. ............. .................. .....

August ........ ............ . . ............

September ......... ......... ..............

Water year 1946-47 ............ .........

Mar

29

30

29

29

*29

31

31

31

32

33

34

33

33

34

33

33

36

41

45

56

67

78

66

60

56

66

77

85

79

81

72

Apr.

66

81

82

67

54

52

54

53

52

50

50

48

48

53

57

85

93

100

99

123

172

169

154

160

126

110

116

105

92

95

Secondfoot-days

1,920

1,679

1,387

31,962

1,101

892

1,469

2,675

13,773

13,333

3,057

3,223

3,421

47,931

May

143

249

417

57S

592

640

580

624

644

612

548

424

392

420

368

333

312

294

302

340

378

428

456

382

417

484

512

512

424

4S6

504

Maximum

289

89

61

613

40

33

85

172

 344

760

«217

347

389

760

June

496

608

616

575

576

596

708

760

756

692

544

434

364

372

389

392

378

400

347

347

392

347

322

302

291

288

288

274

249

229

Minimum

3^

4

3

12

3

2

2

4

1422 r

M

4

4<

2!

Jily

217

205

199

190

169

160

163

138

121

108

99

90

87

82

81

74

76

73

70

62

57

61

73

58

54

51

51

51

47

46

44

Aug.

44

44

43

54

74

57

49

46

46

48

45

58

56

57

64

83

100

112

114

116

116

347

347

242

184

143

133

117

100

95

89

Mean

I 61.9

' 56.0

, 44.7

87.6

35.5

S 31.9

J 47.4

) 89.2

> 444

444

98.6

5 104

114

131

Sept.

84

79

73

70

65

62

60

67

79

82

73

62

55

53

51

49

74

389

389

308

223

178

140

121

108

100

90

84

78

74

Runoff in 

acre-feet

3,810

3,330

2,750

63,380

2,180

1,770

2,910

5,310

27,320

26,450

6,060

6,390

6,790

95,070

* Winter discharge measurement made on this day.

b Stage-discharge relation affected b/ ice.

Note.- No gape-height record Dec. 22 to Mar. 4 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 2 discharge neasure-nents and records for San Juan 

River at Pagosa Springs.
282 SAN JUAN RIVER BASIN

Turkey Creek near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°22'15", long. 106°56'45", at west aide of sec. 

10, 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 1947.

Average discharge.- 10 years, 37.1 second-feet.

Extremes.- Maximum discharge during year, 181 second-feet May 10 (gage height, 2.16 

feet); minimum daily, 1.4 second-feet Oct. 24-27.

1937-47: 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 1946 to September 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.

2.0

3.5

3.2

3.3

4. LI

3.8

8.8

7.8

8.4

6.7

3.6

3.5

2.8

2.5

2.4

2.0

2.1

2.0 l'.9

1.7

1.6

1.5

1.5

1.4

1.4

1.4

1.4

2.B

49

26

16

Nov.

10

7.1

7.3

9.6

6.2

6.2

5.B

7.3

26

20

21

19

12

12

13

16

15

17

16

16

12

12

12

12

11

IS

17

15

14

14

-

Dec.

16

16

*19

19

19

18

18

17

b!3

bll

oil

bll

bll

bll

bll

bll

bll

bll

b9.0

b9.3

9.8

10

n

10

n

10

n

9.3

9.3

3.4

8.4

Jan.

8.3

8.3

8.5

8.4

8.1

3.2

8.4

8.6

8.2

»8.0

7.3

7.3

7.9

8.0

3.0

8.0

7.9

7.8

7 8

7.3

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.5

7.r,

7.5

Feb.

7.4

7.4

7.4

7.5

*7.6

8.0

8.4

8.6

8.6

8.5

8.3

8.0

8.0

8.3

8.4

8.7

9.0

9.0

8.4

7.4

7.4

7.4

7.8

3.0

3.2

8.3

8.0

7.3

_

_

-

Month

October. ...................................

November . ........................ ........

December. .......................... .......

Calendar year 1946 ............. ........

January. .......................... ...... .

February. .......... .............. ........

March. ........................... ........

April . .................. ..............

May. ..................... ...............

June. ....... .............................

July. ........................... . ........

August ....................... . . . ........

September. ..... . ................ .......

Water year 1946-47 ................. ...

Mar.

6.6

7.7

8.9

8.2

7.3

6.7

*S.O

6.0

6.2

6.2

6.7

6.7

6.9

6.9

6.9

8.0

10

11

12

14

18

19

17

15

14

16

20

23

20

19

20

Apr.

22

26

25

22

19

17

17

16

16

15

15

13

14

20

27

33

36

42

41

51

57

55

53

53

43

39

38

35

32

34

Secondfoot-days

130.0

399.0

378.0

5,560.4

246.1

225 3

359 . 9

3 1?5

'279.3

445.6

347.5

8,818.7

May

48

73

114

136

148

148

130

130

136

151

133

109

112

112

107

93

86

80

78

86

88

88

38

76

74

88

94

94

69

71

80

Maximum

49

26

19

109

8.5

9.0

23

57

151

117

24

73

64

151

June

78

100

100

88

88

90

109

117

117

102

84

59

45

43

49

49

49

57

46

44

54

46

41

37

35

37

38

37

34

30

Minimum

1.

5.

- 8.

7 l'.^

6.C

13

48

30

2.

2 .

2."

1.4

Jul''

24

25

2?

21

ie

17

2Cif

14

1?

10 '

9.2

7.1

4.8

4.6

4.4

4.2

2.8

3.6

3.5

3.3

3.3

3.6

a3.5

a3.2

a3.2

a3.2

a3.1

a3.0

a2.9

a2.8

Aug.

a2.8

a2.7

d3.2

4.2

7.3

5.0

3.0

2.8

2.4

3.0

2.2

7.1

5.8

4.2

3.5

8.4

19

23

20

17

13

73

63

40

27

20

19

13

9.6

8.8

7.6

Mean

I 5.31

3 13.3

I 12.2

5 15.5

> 7.94

5 8.05

) 11.6

30.9

101

63.6

3 9.01

> 14. 4

r 11.6

L 24.2

Sept.

7.3

6.2

5.2

5.2

4.8

4.4

3.5

4.6

7.6

7.3

6.2

4.8

3.8

3.3

3.0

2.7

4.0

48

64

46

30

20

13

10

7.8

6.7

5.8

4.8

4.0

3.5

Runoff in 

acre-feet

357

789

750

11,220

488

447 U4

1,340

6 ^00

3^780

554

884

689

17,490

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for stations jn ne irby strea is.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Dec. 5-8, Dec. 21 to Mar. 6 (stage-discharge relation probably affected by ice during most of periods); discharge computed on basis of 2 llsi'harge measurements and 

weather records.
SAN JUAN RIVER BASIH 283

Rio Blanco near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°12'45", long. 106°47'40", in ceiter of sec. 1, 

T. 34 N., R. IE., at highway bridge, 0.4 mile upstream from White Cr?ek and 12.5 

miles southeast of Pagosa Springs.

Drainage area.- 58.0 square miles.

Records available.- May 1935 to September 1947.

Average discharge.- 12 years, 93.2 second-feet.

Extremes.- Maximum discharge during year, 880 second-feet Aug. 4 (gage height, 3.50 

feet), from rating curve extended above 470 second-feet; minimum daily, 13 secondfeet Oct. 1, Jan. 11-12.

1935-47: Maximum discharge, 1,490 second-feet Oct. 12, 1941, from rating curve 

extended above 450 second-feet; maximum gage height, 4.06 feet May 17, 1937; minimum 

daily discharge, 6.0 second-feet Sept. 3, 1942.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records fair.

Discharge, in second-feet, water year October 1946 to September 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.

13

16

19

52

56

37

55

80

56

41

30

29

27

26

26

25

26

25

23

Z4

23

24

23

ZZ

2E

23

22

26

260

126

76

Nov.

55

45

34

33

31

30

28

28

28

26

26

26

26

28

29

27

27

29

30

27

E5

24

26

29

26

28

33

36

36

36

Dec.

35

35

36

*34

3£

32

31

28

27

26

27

28

28

29

30

28

27

23

23

27

26

26

22

22

20

19

19

18

19

18

19

Jan.

17

17

18

16

16

16

16

15

15

14

*a!3

a!3

a!4

a!4

a!4

a!4

a!4

a!4

a!4

a!4

a!4

a!4

a!4

a!4

a!4

a!4

a!4

14

14

14

14

Feb.

15

15

17

18

19

21

*22

22

21

2O

19

17

17

18

19

19

20

20

18

17

17

18

18

18

18

18

18

16

_

-

Month

October. .................. ................

November. . . ... .......... ...... .........

December . . .......... ... .............. .

Calendar year 1946 ........ .............

January ................... ..............

February .................. .... .... .....

March ..................... ....... ........

April. . .............. ...... ............

May. .. ............. ....................

June ... ................ .... .......... .

July. . . ........................... ..... .

August .................... ..........

September. ............ ... ........... . .

Water year 1946-47 . .............. .....

Mar.

14

15

18

17

16

 18

16

17

15

16

15

15

17

16

16

19

27

31

35

36

53

65

48

37

36

47

67

74

58

53

49

Apr.

53

67

56

4S

36

33

35

32

32

32

30

26

30

49

82

90

120

100

98

16S

168

155

165

148

110

98

94

82

78

108

-

Secondfoot-days

1,333

912

814

18,609

452

515

976

2,411

8,563

6,055

1,493

3,226

1,843

28,593

May

182

297

395

439

431

346

336

360

403

480

419

308

325

318

269

215

188

180

188

215

215

209

221

185

195

236

251

230

162

180

185

Maximum

260

55

36

344

18

22

74

168

480

411

102

478

463

480

June

206

284

254

236

254

284

332

384

411

364

260

188

134

144

148

132

136

172

144

158

188

192

168

140

130

138

134

118

112

110

Minimum

13

24

18

10

13

15

14

ZS

162

110

18

16

15

13

July

102

98

94

88

74

70

80

72

62

53

49

47

51

45

52

41

37

36

35

31

30

29

32

28

25

21

23

26

24

20

18

Aug.

19

19

16

157

104

48

48

51

39

37

32

62

106

80

53

136

212

146

122

100

108

478

300

206

144

108

86

67

53

48

41

Mean

43.0

30.4

26.3

51.0

14.6

18.4

31.5

80.4

276

202

48.2

104

61.4

78.3

Sept.

36

33

30

28

27

27

26

25

34

34

29

23

21

18

17

15

157

463

185

146

92

67

58

46

42

37

35

33

31

28

-

Runoff in 

acre-feet

2,640

1,810

1,610

36,900

897

1,020

1,940

4,780

16,980

12,010

2,960

6,400

3,660

56,710

Teak discharge.- Aug. 4 (9 p.m.) 880 sec. -ft.; Aug. 22 (8 a.m.) 844 sec. -ft.; Sspt. 18 (3 a.m.)

760 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of 1 discharge measurement and

Note.- Stage-discharge relation affected by ic

ather 

Dec. 30 to Jan. 10, Jan. ?.B to Feb. 25, Mar. 1-4.
284 SAN JUAN RIVER BASIN

Rito Blanco near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°I1'40", long. 106°54'20"., in SW£ sec. 12, T. 34 

N., K. 1 W., at road crossing, 600 feet upstream from Sheep Cabin Creek and 7-J miles 

southeast of Pagosa Springs.

Drainage area.- 23.3 square miles.

Records available.- May 1935 to September 1947.

Average discharge.- 12 years, 19.3 second-feet.

Extremes.- Maximum discharge during year, 93 second-feet May 10 (gage height, 2.25 

reet); minimum daily, 0.1 second-foot July 12-14, 16-20, 26-31, Aug. 1-3.

1935-47: 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.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

0.5

.8

.4

.4

2.1

1.9

3.7

3.0

4.4

3.7

1.7

1.0

.7

.4

.2

.2

.4

.3

.3

.4

.4

.4

.4

1.2

.8

.8

.4

.5

17

8.3

6.5

Nov.

5.8

4.8

2.8

4.3

4.8

5.0

*5.1

.3.4

3.4

3.0

2.7

2.8

3.0

3.7

4.2

3.4

2.9

2.7

2.7

2.7

2.6

3.0

2.7

3.0

3.0

2.5

3.0

3.6

4.0

4.5

Dec.

C)

> 3.0

Jan.

(*)

> 1.5

J

Feb.

(*)

3.0

_

_

-

Month

October. .......... . . .............. ......

November. ...... ................. ...... . .

December ..................... ..... ....

Calendar year 1946 .....................

January. ................................

February. ................. . ... .... . . .

March. ..................... ........ ...

April ................................ . .

May. ....................................

June ...... . . . . ... . ... ........ .

July. .................... ............

August. ... .......... ...... ..... ..... . .

September. ............... ............

Hater year 1946-47 ... .......... ...

Mar.

(*)

' 6

16

14

13

12

12

Apr.

14

18

17

13

11

9.6

9.2

7.8

7.8

7.4

6.2

7.4

11

17

19

24

24

24

23

30

33

31

30

31

23

20

19

18

15

17

Secondfoot-days

63.2

105.1

91 O

1,807.3

46.5

84.0

223

537.4

'421.3

15 . 9

244.2

114.8

3,486.4

May

25

38

43

47

a51

a58

a56

a60

a66

71

74

68

66

67

74

64

57

54

51

46

43

41

40

38

36

35

38

38

33

31

29

Maximum

17

5.8

44

33

74

26

1.9

45

20

74

June

25

25

26

24

24

24

24

25

24

23

19

17

15

8.8

5.8

5.4

6.5

19

8.8

8.3

8.3

8.8

8.8

6.5

9.2

8.8

4.0

3.7

3.0

2.6

Minimum

o .

2 .1

6 . 'i

25

2.6

.]

.]

. '

.]

July

1.9

1.7

1.2

1.0

.8

.8

1.9

1.7

.8

.7

.5

.1

.1

.1

.2

.1

.1

.1

.1

.1

.2

.2

.3

.4

.2

.1

.1

.1

.1

.1

.1

Aug.

0.1

.1.1

2.3

4.8

.8

.3

2.3

1.2

2.1

.7

1.9

2.6

2.3

1.2

2.8

10

5.4

7.0

12

10

45

33

22

17

13

11

9.6

8.8

7.8

7.0

UlBJl

' 2.04

3.50

3.0

4.95

1.5

3.0

7.19

17.9

49.6

14.0

.51

3 .83

9.55

Sept.

6.2

6.5

5.1

3.4

1.7

1.2

.8

.7

1.2

2.8

1.7

1.2

1.0

.8

.7

.7

2.8

20

11

7.8

6.2

5.1

4.4

3.7

3.7

3.4

2.8

2.8

2.8

2.6

Runoff In 

acre-feet

125

208

184

3,580

92

167

442

1,070

3,050

836

32

484

CCVt

6,920

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for stations on nparhy streams.

No t e.- Stage-discharge relation affected by ice Nov. 4-7, 1O-12, 15-20, 22, 23, Nov. 26 to 

Jan. 3. No gage-height record Jan. 4 to Mar. 26 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 3 discharge measurements and weather records.
SAN JUAN RIVER BASIN 285

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

Location.- Water-stage recorder, lat. 37°05'00", long. 106°41'30", in NWij sec. 24, T. 33 

M., K. 2 E., on Banded Peak Ranch, half a mile downstream from Aspen Creek and 9 miles 

northeast of Chromo.

Drainage area.- 69.8 square miles.

Records available.- April 1937 to September 1947 (no winter records in 1943).

Extremes.- Maximum discharge during year, 525 second-feet June 7 (gage height, 2.42 

reet); minimum daily, 26 second-fe«t on many days in January.

1937-47: Maximum discharge, 1,340 second-feet May 13, 1941 (gage height, 4.02 

feet); minimum daily, 12 second-feet Dec. 28, 1939. 

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records excellent except those for periods of no gage-height record, which 

are rair. No diversion or regulation above station.

Discharge, in second-feet, water year October 1946 to September 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.

32

35

35

53

52

40

46

46

45

41

35

34

34

33

33

33

33

33

32

32

32

32

32

32 32

32

31

32

89

66

52

Nov.

44

42

36

37

37

37

37

38

38

38

37

37

38

38

38

37

36

35

34

34

35

37

38

40

39

38

38

43

43

43

-

Dec.

42

42

42

41

*38

38

38

37

35

33

33

34

33

34

34

34

34

33

29

30

30

31

32

33

33

33

32

31

29

27

28

Jan.

27

28

28

26

26

27

27

26

*26

26

26

26

27

26

27

26

26

26

26

26

26

26

26

27

27

26

26

27

26

26

26

Feb.

27

27

27

28

29

30

*31

31

31

30

29

29

30

31

32

34

36

34

32

32

31

32

34

35

35

34

34

33

_

_

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ................. ................ .

February ................ ..................

March.-.. ..................................

April .............. . . ..................

May........................................

June .................... ..... ...........

July. ................... ..................

August .....................................

September ................................

Water year 1946-47 ......................

Mar.

31

29

32

34

33

*32

31

30

31

33

34

33

32

33

33

34

37

42

55

60

65

72

66

58

55

59

67

80

78

80

76

Apr.

84

»91

80

70

64

63

65

62

62

62

59

56

57

64

74

79

99

110

101

139

163

163

169

166

130

115

112

105

95

103

Secondfoot-days

1,219

1,142

1,053

24, 278

818

878

1, 465

2, 862

8, 961

7,330

2 352

2, 382

if OO /

32,319

May

148

230

290

342

366

362

362

388

425

450

379

302

283

283

266

241

224

220

230

238

258

280

283

241

244

280

314

302

234

244

252

Maximum

89

44

42

709

28

36

SO

169

450

415

130

214

244

450

June

272

338

330

306

314

354

402

415

402

366

286

220

181

199

205

196

202

220

202

214

227

199

175

160

166

169

169

160

145

136

Minimum

31

34

27

24

26

27

29

56

148

136

41

3J) ^q

26

July

13?

125

125

130

115

105

115

112

101

91

84

74

72

68

68

65

65

63

60

56

55

53

55

50

48

46

47

46

44

43

41

Aug.

42

40

38

48

68

56

51

50

48

53

47

66

87

74

68

115

105

80

73

73

78

214

175

133

99

82

73

66

62

58

60

Mian

39 .3

38 . 1

34.0

66.5

26.4

31.4

47.3

95.4

289

244

75.9

76.8

61.9

88.5

Sept.

57

53

49

47

47

46

44

46

56

56

49

46

44

42

41

39

52

244

130

103

80

69

63

57

54

53

49

48

47

46

-

Runoff in 

acre-feet

2,420

2,270

2,090

48,150

1,620

1,740

2,910

5,680

17,770

14,540

4,670

4,720

3,680

64,110

* Winter discharge measurement made on this day.

Note.- No gage-height record Dec. 18 to Apr. 1 (stage-discharge relation probably affected by ice 

during most of period); discharge computed on basis of 3 discharge measurements and weather records.
SAN JUAN RIVER BASIN

Navajo River at Edith, Colo.

a quarter 01 a miie east 01 jsaitn, ana i mile upstream irum uoyote ureeK. uat 

gage is 7,033.00 feet above mean sea level (Bureau of Reclamation berch mark).

iptemU^i J.O-TI ill J.-CfUJ.-|*a Ul IjUiUi-aUU Ul/ai~" «»->/l"tn~al1 0=r^-(-Q ,KQ», lal" -(- TI<J,laTr,Ho», 11-198 1

ports of New Mexico State engineer.

Average discharge.- 28 years (1912-28, 1935-47), 180 second-feet.

Extremes.- Maximum discharge during year, 746 second-feet May 10 (gage height, 4.28 feet); 

minimum daily, 30 second-feet Dec. 30, Jan. 4.

1935-47: Maximum discharge, 2,840 second-feet Apr. 23, 1942 (gage height, 6.5b 

feet), from rating curve extended abi_ve 1,100 second-feet; minimum daily, 11 secondfeet Feb. 4, 1943.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for period of ice effect, which are fair. Diversions 

above station for irrigation.

Rating table, water year 1946-47, except period of Ice effect

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

(Shifting-control method used Mar. 13 to May 8)

2.4 30

Z.I 73

2.9 108

3.1 157

3.4 250

3.7 | 370

3.9 480

4.1 620

Discharge, in second-feet, water year October 1946 to September 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.

31

40

44

55

99

67

82

73

78

70

58

54

52

52

52

51

52

51

48

45

43

44

44

43

41

41

41

44

92

122

87

Nov.

72

67

60

58

55

57

54

57

58

54

48

50

52

54

55

52

48

48

48

48

50

50

50

57

55

48

51

55

58

57

-

Dec.

57

55

55

55

*55

52

54

50

44

37

37

38

38

41

41

40

36

38

31

32

32

33

34

35

36

35

35

33

31

30

31

Jan.

31

32

31

30

31

32

33

32

*32

32

32

32

33

33

33

32

32

32

32

31

31

31

31

31

31

31

32

32

32

32

32

Feb.

33

34

36

39

42

47

*50

50

48

46

43

40

43

45

47

48

51

49

45

43

42

44

46

48

48

47

46

42

_

_

-

Month

December ....................... ...........

Calendar year 1946 ......................

May. .................................. ...

September. ......'..........................

Water year 1946-47 ......... ...........

Mar.

37

42

48

47

46

*45

41

39

39

40

41

40

38

40

44

50

61

76

78

85

87

94

88

75

68

73

82

94

92

94

92

Apr.

95

*113

122

99

82 (

72

78

75

73

72

68

62

62

73,

95

99

117

141

117

154

197

188

185

191

152

134

147

152

131

120

-

Second-^ 

foot-days

1,796

1,251

28,626

1,916

7,659

2,231

39,075

May

163

266

354

375

438

444

395

420

508

620

592

444

390

410

385

342

330

310

310

310

322

330

358

310

294

322

342

354

278

266

282

Maximum

122

57

410

33

420

246

203

620

June

270

338

350

322

322

342

390

420

390

370

318

250

200

194

215

200

203

243

215

229

243

232

200

191

179

185

171

168

157

152

-

Minimum

31

48

30

22

30

33

37

163

152

37

44

30

July

141

139

139

147

131

126

129

134

117

103

92

85

78

76

73

68

68

67

68

64

61

60

61

55

52

50

48

47

44

43

41

Ang.

40

38

37

45

104

67

61

55

58

67

53

82

80

115

94

129

168

113

108

104

110

226

246

177

129

108

95

87

82

75

75

Mean

57.9

40.4

78.4

31.7

255

74.4

107

Sept.

76

67

64

61

61

60

55

55

62

76

60

55

51

48

45

44

51

203

177

131

103

90

80

73

67

67

64

62

62

61

-

Runoff in 

acre-feet

3,560

2,480

56,780

1,950

15,190

4,430

77,500

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Dec. 20 to Mar. 12.
SAN JUAN RIVER BASIN 287

Little Navajo River at Chromo, Colo.

Location.- Water-stage recorder, lat. 37°02'10", long. 106°50'35", in SE£ sec. 4, T. 32 

N"., R. IE., at highway bridge 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 1947.

Average discharge.- 12 years, 14.4 second-feet.

Extremes.- Maximum discharge during year, 105 second-feet Aug. 22 (gage height, 3.20 

reet); no flow June 26 to Aug. 3.

1935-47: 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 flow 

Aug. 31, 1938, July 7, 1939, May 18 to Aug. 10, Aug. 12-20, 1946, June 26 to Aug. 3, 

1947.

Maximum flood known occurred Oct. 5, 1941.

Remarks.- Records fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1?47

Day

1

2

3

4

5

6

7

8

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

.Z

.2

.4

.4

.8

.4

.6

.5

.3

.3

.2

.2

.2

.2

.3

.3

.2

.3

 .5

1.3

1.3

1.2

1.2

1.2

1.3

1.4

4.3

4.1

2.8

Nov.

2.1

1.8

1.2

1.9

3.1

2.0

*3.0

2.0

2.2

2.1

1.9

2.3

1.9

2.1

2.1

2.5

2.2

2.2

2.3

2.4

2.3

2.6

2.4

2.9

2.7

3.2

2.4

2.8

2.9

2.7

-

Dec.

2.8

2.8

2.7

2.9

*3.0

2.7

3.0

2.9

3.0

2.7

2.3

2.1

2.2

2.3

2.4

2.3

2.1

2.5

2.1

2.2

2.4

2.7

2.5

2.6

2.7

2.8

2.9

3.0

2.0

1.6

1.7

Jan.

\

(«)

» 1.8

Feb.

(*)

> 2.3

_

_

-

Month

October. ...................................

November ......................... .........

December. ............. ....................

Calendar year 1946 ......................

January .................................. .

February ................................. .

March. .................................... .

April. ................................... .

May........................................

June .......................................

July... ....................................

August .....................................

September. .................................

Water year 1946-47 ...... ...............

Mar.

1.8

2.0

1.8

1.9

2.0

*2.1

2.8

3.9

4.2

6.6

5.4

4.4

5.0

3.9

5.8

6.6

6.6

7.8

7.8

11

11

11

9.5

7.0

7.4

7.4

"119.5

10

10

12

Apr.

12

15

15

11

9.0

7.8

5.8

2.5

2.8

.9

.4 '

1.0

1.4

3.3

8.2

8.2

10

14

13

19

21

18

17

14

- 8.2

5.0

5.8

4.4

2.0

2.2

Secondfoot-days

26. 9

67.2

77.8

1,109.7

55.8

64.4

199.2

257 . 9

755!4

33.5

0

295 7

103)5

1,937.3

May

4.4

13

15

18

24

20

15

16

22

52

50

40

46

52

47

41

36

30

27

25

23

21

23

23

19

16

12

12

6.6

3.6

2.8

Maximum

4.3

2.9

3.0

30

12

21

52

6.2

0

74

25

74

June

3.0

3.0

2.0

1.8

3.0

2.8

1.5

.5

.4

.4

.4

.4

.3

.3

.2

.2

.3

.3

.7

.6

.9

2.0

2.1

6.2

.2

0

0

0

0

0

-

Minimum

0.2

1.2

1.6

0

1.8

.4

2.8

0

0

0

1.3

0

July Aug.

0

0

0

.7

1.2

.6

.4

.4

.6

1.9

.6

1.1

.6

1.1

7.8

26

20

12

10

8.2

17

74

39

22

12

9.0

7.8

6.2

5.8

5.0

4.7

Mean

0.87

2.24

2.51

3.04

1.8

2 . 3

6.43

8 . 60

24.4

1.12

0

9.54

3.45

5.31

Sept.

4.7

3.9

3.6

3.3

3.3

3.0

2.8

2.2

3.6

5.0

3.0

2.5

2.2

1.9

1.9

1.9

3.0

25

7.4

4.2

2.0

1.8

1.8

1.6

1.4

1.3

1.3

1.3

1.3

1.3

-

Runoff in 

acre- feet

53

133

154

2,200

111

128

395

512

1,500

66

0

587

205

3,840

Winter discharge measurement made on this day. 

Note.- Stage-disoharge relation affected by ice Nov. 17-20, 26, 27, Dec. 2-4, 10-26, 29, 30. 

No gage-height record Dec. 31 to Mar. 5 (stage-discharge relation affected by ice d iring most of 

period); discharge computed on basis of 2 discharge measurements and weather recordi.
288 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., 

W. 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). Water-stage recorder 350 

feet downstream at different datum April 1937 to September 1941.

Drainage area.- 82.3 square miles.

Kecords avaliaDle.- April 1937 to September 1941, July 1946 to September 1947.

Extremes.- ia4F:Maximum discharge during period July to September, 633 second-feet 

Aug. 12 (gage height, 4.55 feet), from rating curve extended above 380 second-feet; 

minimum daily, 28 second-feet July 11.

1946-47: Maximum discharge during year, 830 second-feet June 7 (ga^e height, 5.03 

feet), from rating curve extended above 380 second-feet; minimum daily determined, 15 

second-feet Mar. 14, but may have been less during other periods of no gage-height 

record.

1937-41, 1946-47: Maximum discharge, 1,570 second-feet June 23, 1941 (gage height, 

4.41 feet, site and datum then in use); minimum not determined. 

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Record.3 good except those for periods of ice effect or no gage-height record, 

which are fair. A few small diversions above station for irrigation.

Day

1

2

j

4

5

6

July

a36

a33

a32

a37

a40

a43

Aug.

39

39

33

32

32

30

Sept.

77

69

61

55

52

47

Day

7

8

9

10

11

12

July

a25

a38

a43

29

28

34

Aug.

30

32

30

29

64

188

Sept.

42

40

38

37

37

38

Day

13

14

15

16

17

18

July

-49

38

36

32

30

31

Aug.

198

140

107

89

76

67

Sept.

34

32

33

33

30

90

Day

19

20

21

22

23

24

July

4O

114

69

59

52

43

Aug.

65

61

59

96

101

98

Sept.

140

66

55

49

45

41

Day

25

26

27

28

29

30

31

July

40

37

35

35

34

37

40

Aug.

82

67

68

66

6Y

69

82

Sept.

38

37

34

33

32

36

-

ge-helght record; discharge computed on basis of records

1946-47

station near Piedra.

Day

1

2

3

4

5

6

7

8

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

50

50

51

59

55

75

68

71

65

50

50

47

46

47

44

44

42

36

3/

37

36

35

34

33

34

34

43

202

107

72

Nov.

59

54

45

43

41

38

41

41

39

38

34

40

36

35

37

31

34

34

35

40

36

33

33

34

33

30

38

41

38

38

-

Dec.

38

38

38

38

39

*37

37

31

b30

b29

30

32

30

31

32

30

29

27

26

26

26

27

28

29

29

29

28

26

22

17

18

Jan.

(*)

> 17

Feb.

(*)

19

_

_

-

Mar.

16

16

18

17

16

16

*16

16

16

16

16

16

16

15

17

21

25

32

39

46

52

60

51

43

36

43

50

56

52

48

51

Apr.

49

56

*51

44

40

32

35

31

31

31

31

31

32

37

49

60

75

89

83

98

130

128

110

115

110

90

92

78

70

63

-

May

100

180

270

330

370

4OO

385

375

418

389

347

275

252

252

235

216

206

200

210

250

280

307

307

258

283

358

382

382

319

358

389

June

375

462

466

442

454

438

542

574

542

482

364

268

226

238

250

255

245

280

230

226

250

224

204

190

184

186

184

176

160

144

-

July

130

126

117

112

101

93

104

90

78

68

59

51

44

44

44

44

47

41

39

35

34

34

40

30

27

26

25

25

24

22

22

Aug.

22

21

21

60

62

40

32

30

29

34

30

47

47

41

41

72

95

146

170

152

144

386

350

230

172

142

136

110

98

95

86

Sept.

77

70

67

65

61

57

57

60

72

72

66

56

52

49

44

43

56

395

462

331

212

162

128

106

92

81

75

69

64

60

-

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 11 to Apr. 2 (stage-discharge relation affected by ie 

most of period), Apr. 5 to May 7; discharge computed on basis of 3 discharge measurements 

records, and records for station on nearby streams.

Monthly discharge, in second-feet, 1946-47

Month

September. ..................................

The period. .........

March. ......................................

May. ........................................

September ...................................

Water year 1946-47 .......................

Secondfoot -days

2 2^6 '

1,451

3,261

34,464

Maximum

140

59

39

462

574

Minlnum

30

43

-

Mean

48.4

109

94.4

"Runoff in 

.irre-fppt.

2,880

6,470

63,370
SAN JOAN RIVER BASIN 

Piedra River near Piedra, Colo.

289

Location.- Water-stage recorder, lat. 37°14', long. 107 C 20', in sec. 8, T. 34 N., R. 4 W., 

at crossing of U. S. Highway 160, three-quarters of a mile upstream from Yellow Jacket 

Creek and 1^ miles north of Piedra.

Drainage area.- 371 square miles.

Records available.- November 1911 to July 1912, October 1939 to September 1947.

Extremes.- Maximum discharge during year, 1,940 second-feet May 10 (gige height, 4.90 

reet); minimum, 33 second-feet Dec. 30 (gage height, 1.45 feet).

1911-12, 1939-47: 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 dally, 23 second-feet Dec. 20, 1939. 

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records excellent except those for periods of ice effect which are fair. 

Diversions above station for irrigation.

Rating table, water year 1946-47, except periods of ice effect

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

(Shifting-control method used Oct. 1-29)

1.6 43 2.5 170

1.8 60 2.7 225

2.0 82 2.9 300

2.3 132 3.5 610

3.9 900

4.4 1,370

4.7 1,700

Discharge, in second-feet, water year October 1946 to September 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.

87

106

178

139

170

146

195

178

195

175

136

134

132

127

123

119

119

116

101

100

100

96

95

93

90

88

87

106

415

355

207

Nov.

160

154

121

118

109

100

103

114

101

103

76

103

114

101

106

76

82

82

85

87

106

82

81

104

90

65

82

98

101

98

-

Dec.

95

92

*85

93

109

111

108

78

72

68

70

80

76

78

80

76

72

74

68

60

63

66

68

72

74

72

74

68

65

47

54

Jan.

50

58

58

48

50

53

55

*51

56

50

52

54

56

55

54

53

53

54

54

54

55

55

55

54

56

54

54

54

54

54

54

Feb.

54

56

58

61

63

67

67

*69

69

72

68

67

68

67

68

71

77

74

70

68

67

68

71

72

72

72

72

69

_

-

-

Month

October. ...................................

November. .... ... .............. .....

December ..... ... ... . .... ... .... .

Calendar year 1946 .............. . ...

January ......... . .............. . ...

February. . . . . . ..........

March. ........... ..... . . ....

April ........ . . .... ... ......

May. ............ ......... ........

June ........ .... ... . . . ....

July. ........ .......... ...

August .... . . .........

September . . ......

Water year 1946-47

Mar.

61

60

71

67

64

63

62

59

64

60

65

62

58

67

67

70

96

141

164

190

216

253

201

160

146

135

213

239

207

192

210

Apr.

Secondfoot-days

4,508

3,002

2,368

67,160

1,667

1,897

3,833

8,040

32,838

20,504

4,267

7 511

8*444

98,879

195

225

232

195

166

156

160

158

158

150

145

132

132

150

190

253

280

365

335

420

535

525

455

475

375

315

325

310

268

260

-

May

370

659

1,080

1,360

1,410

1,490

1,300

1,260

1,390

1,640

1,590

1,220

1,170

1,240

1,120

990

945

820

785

860

900

954

963

820

799

927

1,010

1,040

860

876

990

Maximum

415

16u

111

1,030

58

77

253

535

1,640

1,220

288

990

1,080

1,640

June

835

936

1,050

900

954

868

1,020

1,220

1,170

1,120

936

680

540

530

562

568

562

592

568

530

562

545

510

440

410

415

410

390

355

325

-

Minimum

87

65

47

36

48

54

58

132

370

325

57

118

47

July

288

272

253

250

232

213

216

216

190

164

148

130

118

112

118

116

119

108

103

95

87

84

93

84

75

71

68

65

63

59

57

Aug.

55

53 .

52

56

156

109

78

80

77

78

77

78

118

98

101

127

219

310

390

320

292

828

990

604

445

33S

315

264

250

292

264

Sept.

219

195

182

175

162

160

166

150

192

198

190

162

148

137

127

118

121

788

1,080

844

592

455

352

300

253

225

210

195

178

170

-

Mean Runoff in 

Mean acre-feet

145 8,940

100 5,950

76.4 4,70J

184 133,200

53.8 3,310

67.8 3,760

124 7,600

268 15,950

1,059 65,130

693 40,670

138 8,460

242 14,900

281 16,75'J

271 196,100

Note_._- Stage-discharge relation affected by ice Dec. 21-28, Dec. 31 to Feb.
290 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., 

K. 3 W. , 2j miles north of Bridge ranger station, 3-i miles upstream from mouth, and 

17 miles northwest of Pagosa Springs. Water-stage recorder at same site at different 

datum May 1937 to September 1941.

Drainage area.- 43.7 square miles.

Records available.- May 1937 to September 1941, May 1946 to September 1947.

Extremes.- 1946: Maximum discharge during period May to September, 295 second-feet June 

1 ( gage height, 2.75 feet), from rating curve extended above 200 second-feet; minimum, 

5.8 second-feet Aug. 10 (gage height, 1.32 feet).

1946-47; Maximum discharge during year, 280 second-feet May 5 (gage height, 2.65

-, - , - , height, 

3.68 feet, datum then in use), from rating curve extended above 450 second-feet; 

minimum not determined.

Maximum flood known occurred Oct. 5, 1911.

Remarks . - Records good except those for period Nov. 11 to Apr. 30, which sre fair. No 

diversion above station.

Cooperation.- Gage-height record May 28 to Oct. 10, 1946, and seven dischsrge measurements 

lurnisTTecI by Bureau of Reclamation.

Rating tables, water years 1945-46, 1946-47, except periods of Ic

(gage heightj In feet, and discharge, In second-feet) 

(Shifting-control method used Aug. 11 to Sept. 30, 1946)

May 28, 1946 to Mar. 31, 1947 Apr. 1 to Sept. 30, 1947

1.3

1.4

1.5

1.6

1.8

2.0

2.1

2.2

2.3 110

2.4 140

2.6 220

1.3

1.4

1.5

1.6

11 1.8 50

1.9 64

2.0 80

2.2 120

2.3 145

2.4 175

2.6 255

Discharge, in second-feet, 1946-47 

1946

Day

1

2

3

4

5

6

Y

8

9

10

11

12

13

14

15

16

1Y

18

19

20

21

22

23

24

25

26

2Y

28

29

30

31

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May

.

_

_

.

-

_

_

_

_

-

.

_

<f

-

.

_

_

_

-

_

_

_

-

.

_

77

71

57

51

June

56

70

122

176

204

208

220

208

188

184

188

176

152

137

125

113

104

88

73

66

59

51

49

45

39

35

33

29

26

24

-

July

21

19

19

19

24

19

18

25

19

16

16

20

19

17

16

14

1C

14

1?

ze

IS

leif

13

12

14

13

12

12

13

14

Aug.

15

15

12

12

10

9.5

9.0

9.0

6.6

6.6

15

37

36

28

24

24

20

19

18

18

19

28

30

30

27

24

23

22

2?

19

24

Sept.

35

30

25

21

19

18

16

15

15

14

15

15

14

13

14

16

13

34

69

38

31

26

23

24

18

18

17

16

16

18

-
SAN JUAN RIVER BASIN 291

Williams Creek near Bridge ranger station, near Pagoaa Springs, Colo., 1946-47 Continued

1946-47

Day

1

2

3

4

5

6

7

8

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

40

36

34

39

34

44

41

44

39

32

31

29

28

28

26

25

24

20

20

19

19

19

18

15

15

18

24

87

59

45

Nov.

36

34

32

34

34

*22

22

20

21

21

15

17

19

19

19

17

15

15

16

17

18

16

16

17

16

14

IS

18

19

19

-

Dec.

15

Jan.

> 12

Fab13

-

_

-

Mar.

14

13

14

14

14

13

13

13

13

13

13

13

13

13

13

14

IS

18

21

24

29

33

31

26

23

25

29

35

32

32

33

Apr.

32

34

*3S

32

28

23

25

23

23

23

23

23

23

28

36

41

44

56

51

66

86

84

74

77

61

53

57

57

58

44

-

Hay

64

112

142

211

227

227

211

211

207

215

203

179

169

166

151

140

128

125

128

138

151

157

160

140

142

166

175

183

163

169

169

June

160

179

179

169

172

172

203

223

223

211

175

132

114

116

125

130

125

145

114

110

122

110

98

86

80

86

88

90

82

77

July

72

67

64

63

57

57

58

53

47

40

36

32

28

28

28

26

26

24

23

21

20

21

21

18

17

16

15

14

14

14

13

Aug.

12

12

12

24

33

21

17

16

17

17

14

18

20

17

20

27

41

50

53

39

42

116

116

77

58

48

43

38

35

43

38

Sept.

33

29

28

28

26

26

25

23

27

28

29

24

21

20

19

18

31

157

211

145

100

78

64

54

48

43

40

37

33

32

* Winter wdischarge discharge measurement measurement made on this day.

Mote.- Stage-discharge relation affected by Ice Nov. 11, 12, 16-30, Dec. 1-9. No gage-height 

cord Dec. 10 to Apr. 11 (stage-discharge relation affected by Ice during most of period); dlslarge computed on basis of 1 discharge measurement, weather records, and records for Piedra Rlv

ar1 P ! pr^T'a .

charge 

PI

Monthly discharge, In second-feet, 1946-47

Month

December. ...................................

Calendar year .......................

April. ......................................

Hay. ........................................

September. ..................................

The period ................................

December ....................................

Calendar year .......................

April.. .....................................

September . ..................................

Water year 1946-47 .......................

Secondfoot-days

-

.

656

_

970

465

_

372

364

620

1,321

4,096

1,033

1,134

1,477

17,595

Maximum

-

.

26

37

69

.

87

36

-

_

35

86

227

'23

72

116

211

227

Minimum

-

_

_

_

12

6.6

13

.

15

14

-

.

_

13

23

64

77

13 

12

18

-

Mean

-

-

_

_

_

_

108

16.9

19.7

21.9

-

31.3

20.5

15

-

12

13

20.0

44.0

165

137

33.3

36.6

49.2

48-2

Runoff in 

acre-feet

.

-

-

_

_

_

_

6,440

1,040

1,210

1,300

9,990

1,920

1,220

922

-

738

722

1,230

2,620

10,170

8,120

2,050

2,250

2,930

34,890
292 SAN JUAN RIVER BASIN

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

Location.- Water-stage recorder, lat. 37°28'15", long. 107°14'00", In sec. 5, T. 37 N., 

R. 3 W. , 3-| miles northwest of Bridge ranger station, 5 miles upstream from mouth, 

and 19 miles northwest of Pagosa Springs. Water-stage recorder at same site but 

different datum April 1937 to September 1941.

Drainage area.- 53.4 square miles.

Records available.- April 1937 to September 1941, May 1946 to September 1947.

Extremes.- 1946: Maximum discharge during period May to September, 325 se?ond-feet 

June ti (gage height, 4.21 feet); minimum dally, 13 second-feet July 11.

1946-47: Maximum discharge during year, 372 second-feet May 5 (gage height, 4.39 

feet); minimum dally not determined, occurred during period of no gage-height record.

1937-41, 1946-47: Maximum discharge, 867 second-feet May 13, 1941 (gage height, 

5.34 feet, datum then In use), from rating curve extended above 500 second-feet; 

minimum not determined.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good except those for period of no gage-height record, wliich are poor. 

A few small diversions above station.

Discharge, In second-feet, 1946-47 

1946

Day

1

2

3

4

5

6

7

8

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

_

_

_

_

-

_

_

_

-

_

_

_

-

_

_

_

_

-

.

_

_

75

73

86

106

91

86

52

53

June

67

81

144

208

240

242

250

225

200

192

198

178

158

140

128

113

103

91

73

64

56

48

45

39

35

30

26

23

21

19

-

July

17

16

16

16

19

19

16

18

16

14

13

16

26

25

24

23

19

19

23

53

38

25

24

20

20

19

20

18

24

22

23

Aug.

25

24

19

18

17

16

16

17

15

14

25

64

50

42

38

31

26

26

23

23

30

37

51

56

49

36

37

36

36

34

34

Sept.

48

51

42

35

30

27

24

22

21

20

20

22

19

18

19

19

17

28

56

34

27

24

22

20

20

19

19

19

18

19

-
SAN JUAN RIVER BASIN 293

Discharge, In sesond-feet, of tfemlnuche Creek near Bridge ranger station, near Pagosa Springs, Colo.

1946-47 --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.

20

44

54

38

42

36

53

39

39

34

23

22

22

20

20

19

19

19

16

16

16

16

16

16

15

15

16

23

103

59

36

Nov.

29

29

26

27

28

*21

16

13

16

18

18

18

13

-

Dec.

 11

Jan.

 9

Feb.

> 10

-

_

-

Mar.

11

11

12

11

11

11

11

11

11

11

11

11

11

11

11

11

12

13

15

17

20

23

21

17

14

16

18

22

19

18

19

Apr.

18

19

*21

21

19

13

14

13

13

13

13

13

13

16

20

28

35

42

41

64

84

83

67

73

56

44

51

45

39

40

-

May

83

150

228

285

398

315

265

245

282

308

280

218

194

192

186

166

154

152

160

178

186

186

300

166

180

205

212

205

186

196

186

June

170

188

200

182

182

172

205

235

225

205

178

142

118

118

118

122

122

134

117

117

136

122

110

100

96

94

91

86

81

75

-

July

68

65

60

60

57

57

60

56

50

42

35

31

29

30

32

30

30

26

24

22

21

21

22

19

18

16

16

16

14

14

14

Aug.

13

12

12

17

28

18

17

19

16

16

14

19

19

19

19

30

64

81

80

60

93

218

184

122

91

72

72

60

62

103

101

Sept.

67

60

54

45

44

54

51

46

62

59

54

44

40

36

33

31

45

154

166

120

89

72

60

51

46

42

39

37

35

33

-

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. 13 to Apr. 13 (stage-discharge relation affected by Ice during 

most of period); discharge computed on basis of 1 discharge measurement and weather records.

Monthly discharge, In second-feet, 1946-47

Month

December.'. ..................................

Calendar year .......................

April.......................................

September. ..................................

The pf>r iod ................................

December. ..................................

Calendar year .......................

Hay . ... . ... ... . . .......

September. .................................

Water year 1946-47 ......................

Secondfoot-days

3,437

779

_

341

_

6,447

1,055

1,751

1,769

19,059

Maximum

64

56

_

_

23

315

68

218

166

315

Minimum

_

53

19

13

14

17

.

-

.

11

13

83

75

14

12

31

-

Mean

_

_

_

79.0

115

21.4

31.1

26.0

.

30.0

16.4

11

.

9

10

14.2

34.4

208

141

34.0

56.5

59.0

52.2

Runoff in 

acre-feet

.

_

_

1,250

6,820

1,310

1,910

1,550

12,840

1,850

978

676

-

553

555

875

2,040'

12,790

8,410

2,090

3,470

3,510

37,800
294 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, 3j miles south of Weminuche Pass, 

and 7 miles southwest of Rio Grande Reservoir Dam.

Drainage area.- 25.3 square miles (revised).

Records available - October 1937 to September 1941, May 1945 to September 1947 (no winter 

records 1937-41, 1945-46).

Extremes.- 1945: Maximum discharge during period May to September not determined, occurred

 during period of no gage-height record; minimum daily, 8.6 second-feet Sept. 11-lfa,

1945-46- Maximum discharge during water year not determined, occurred during period 

of no gage-height record; minimum daily determined, 5.4 second-feet Oct. 31, Sept. 10, 

but may have been less during period of no gage-height record.

1946-47: Maximum discharge during water year, 312 second-feet June 8 (gage height, 

2.71 feet); minimum not determined, occurred during period of no gage-height record.

1937-41, 1945-47: Maximum discharge, 650 second-feet May 29, 1938, from rating 

curve extended above 300 second-feet; maximum gage height, 3.98 feet June £3, 1941; 

minimum discharge 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. Two small diversions above station from Los Pinos Rivsr Basin to Rio 

Grande Basin.

Cooperation - Eight discharge measurements and gage-height record for 1945 and 1946 

rurnisned by Bureau of Reclamation.

Discharge, In second-feet, 1945-47

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

1945

May

> 90

June

78

76

72

84

120

120

120

114

94

82

78

94

125

156

148

140

122

115

109

106

109

111

107

100

98

90

80

73

67

63

-

jL.ly

60

56

53

50

47

44

41

38

39

39

38

33

31

30

28

27

27

29

29

27

27

27

31

29

24

23

21

19

18

19

18

Aug.

18

16

16

16

15

17

19

19

17

15

14

18

17

14

14

13

12

12

12

13

12

12

12

12

12

12

14

12

12

12

12

Sept.

14

12

12

12

10

10

10

9.5

9.0

9.0

8.6

8.6

8.6

8.6

8.6

9.5

10

9.0

9.0

9.5

9.0

9.0

9.0

8.6

8.6

8.6

9.0

10

11

11

-

Oct.

11

11

11

10

10

9.0

9.0

9.0

10

22

30

29

25

20

15

14

13

12

11

11

11

10

7.8

12

11

9.5

7.4

7.0

7.0

6.2

5.4

1946

May

> 75

June

68

100

150

190

230

250

245

225

190

194

190

160

144

128

124

119

119

88

71

62

51

46

47

39

34

28

26

23

ZO

19

-

July

18

17

15

15

19

18

19

20

18

15

15

17

17

17

16

15

17

16

22

30

20

15

14

12

12

12

12

14

14

12

15

Aug.

17

12

11

9.5

8.6

8.2

8.6

8.2

7.8

8.2

12

16

15

16

14

12

11

10

10

10

12

18

24

20

18

18

17

17

15

14

13

Sept.

12

14

15

12

10

8.2

7.4

6.6

5.8

5.4

6.2

6.6

6.2

5.8

6.6

6.2

5.8

13

14

9.0

7.8

7.0

6.6

6.6

6.6

6.2

5.8

5.8

5.8

6.2

-

Note.- No gage-height record May 1 to June 13, Sept. 19-30, Oct. 1-21, 1945, May 1 to June 9,

1946; discharge computed on basis of recorded range In stage wljen available, weather records, and

records for stations on nearby streams.
SAN JUAN RIVER BASIN 295

Discharge, In second-feet, of Los Plnos River below Snowsllde Canyon, Colo., 1945-47 Continued

1946-47

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.

25

32

31

30

29

29

30

30

27

22

21

20

15

14

16

15

16

16

17

16

16

16

16

16

15

14

12

11

12

b!2

Nov.

bll

bll

10

10

10

10

blO

blO

b9.5

b9.5

9.5

9.5

9.0

8.2

8.2

7.8

8.6

8.6

8.6

8.6

8.6

8.2

8.2

8.2

8.2

8.6

9.0

9.0

9.0

9.5

bll |

Dec.

 7.5

Jan.

 5.5

'

Feb.

' 5.0

_

Mar.

*

> 5.7

1 '

Apr.

> 11

-

May

> 115

June

170

185

195

195

195

210

230

250

240

220

180

140

115

120

125

122

119

117

111

117

134

111

91

85

85

83

80

74

70

64

-

July Aug .

61 12

5Q 12

55 12

54 21

5S 17

5? 13

5* 15

4' 15

4< 14

4' 13

3- 12

31 13

2: 13

27 13

2T 15

2T 17

27 26

2: 26

2; 26

2i 22

2' 44

2- 111

2; 74

1J 51

IE 41

16 43

15 46

15 38

IE 40

i: 51 i; 42

Sept.

36

33

30

29

29

32

27

28

36

34

31

25

22

21

19

18

33

65

98

64

52

44

40

36

34

32

30

28

28

32

-

b Stage-discharge relation affected by Ice.

Note.- Ho gage-height record Oct. 1-7, Nov. 3-6, Dec. 1 to June 16 (stage-discharge relation 

affected by Ice during part of periods); discharge computed on basis of weather records and records 

for stations on nearby streams.

Monthly discharge. In second-feet, 1945-47

Month

September. ..................................

The period ................................

December. ...................................

Calendar year .......................

March. ......................................

May 1946 ...................................

August .

September. ..................................

Water year .......................

December. ..............'.....................

Calendar year .......................

May.........................................

July ....

September. ..................................

Water year 1946-47 ......................

Secondfoot-days

291.3

-

386.3

-

.

_

_

_

2,325

3,380

508

411.1

240.2

-

Z74.1

232.5

_

140.0

991

1,066

12,688.8

Maximum

14

-

30

-

-

_

_

_

_

250

30

24

15

-

32

11

-

_

_

_

_

_

250

61

111

98

250

Minimum

8.6

-

5.4

-

-

_

_

-

_

-

19

12

7.8

5.4

-

11

7.8

-

-

_

_

_

_

64

13

12

18

-

l'«an

9.71

-

12.5

_

-

-

.

_

-

_

75

113

16.4

13.3

8.01

-

19.4

9.14

7.5

-

5.5

5.0

5.7

11

115

141

32.0

29.3

35.5

34.8

Runoff in 

acre-feet

6,050

875

578

15,060

766

_

-

-

_

-

-

-

4,610

6,700

1,010

815

476

-

1,190

544

461

-

338

278

350

655

7,070

8,400

1,970

1,800

2,110

25,170

Time basis; Mountain war time up to 2 a.m., Sept. 30, 

To convert war time to standard time, subtract 1 hour.

852060 O - 49 - 20

1945; mountain standard ti-re thereafter.
296 SAN JUAN RIVER BASIN

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 Plnos (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 1947.

Extremes.- Maximum contents during year, 113,100 acre-feet July 10 (elevation, 7,660.05 

reet); minimum, 45,950 acre-feet Oct. 11-13 (elevation, 7,630.2 feet).

1941-47: Maximum contents, that of July 10, 1947; minimum, 1,520 acre-feet Oct. 24, 

35, 1944 (elevation, 7,584.1 feet).

Remarks.- 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.- Gage heights furnished by Bureau of Reclamation.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31. ..................

Calendar year 1946. .....

Water year 1946-47......

Elevation 

(feet)

,635.6

-

-

Contents 

(acre-feet)

56,080

-

95 * 590

-

Change In contents 

during month 

(acre-feet)

_

+4,170

+2, 3*0

+17,330

+47,850
SAN JUAN RIVER BASIN 297

Los Pinos River near 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 

H.., a quarter of a mile downstream from Red Creek 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 1947 in reports of Geological Survey. 

October isa 1 / to September 1947 (at present site) and May to September 1926 (at site 

2 miles upstream) in reports of State engineer.

Average discharge.- 20 years (1927-47), 358 second-feet.

Extremes (regulated).- Maximum discharge during year, 1,410 second-feet May 27 (gage 

height, 3.93 feet); minimum daily, 41 second-feet Nov. 7, 9-11.

1926-47: 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 Dei. 21, 22, 

1937.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records excellent above 100 second-feet and good below. Discharge regulated 

cy storage in Vallecito Reservoir (see preceding page). Diversions above station for 

irrigation.

Discharge, in second-feet. water year October 1946 to September 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.

326

326

322

322

318

318

289

264

264

258

237

196

100

1OO

75

60

60

60

60

60

60

60

60

60

60

60

60

60

65

61

60

Nov.

60

60

60

60

59

52

41

42

41

41

41

42

42

42

42

42

42

42

42

42

42

42

42

43

42

66

149

149

149

149

-

Dec.

93

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

53

55

54

54

54

54

54

Jan.

55

55

55

55

55

56

56

56

56

56

57

57

57

57

57

57

57

56

56

56

56

56

56

56

56

56

56

56

56

56

56

Feb.

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

57

_

_

-

Month

October. ...................................

November ......................... .........

December .............. .................. .

Calendar year 1946 ................ .....

January. .......... ...................... .

February. ............................ .....

March ......................................

April ...................................

May. .......................................

June .................. ....................

July. ............. ... ....................

August ............................... .....

September. .................................

Water year 1946-47 .......... ...........

Mar.

56

56

56

56

55

55

55

55

54

54

54

54

53

53

53

52

52

52

52

52

52

52

52

52

52

52

52

53

53

53

53

Apr.

53

53

54

53

53

53

53

53

53

53

54

54

54

55

55

55

55

55

55

68

209

244

244

244

264

300

300

300

334

354

-

Secondfoot-day s

4,681

1,808

1,690

80,750

1,738

1,596

1,655

3,884

19,465

25,632

18,568

15 192

10',SS7

106,576

May

354

400

470

495

495

5OO

500

5OO

510

515

520

382

300

292

422

525

525

525

525

525

530

588

705

876

932

924

1,050

1,120

1,120

1,120

1,220

Maximum

326

149

93

600

57

57

56

354

1,220

1,280

663

649

445

1,280

June

1,280

1,200

1,040

1,040

1,040

1,050

1,050

1,060

1,060

1,060

1,070

1,070

1,070

1,010

972

852

663

642

607

607

614

614

614

621

621

621

621

621

621

621

-

Minimum

60

41

53

33

55

57

52

53

292

607

530

350

264

41

July

621

621

621

621

621

570

530

530 53")

564

600

600

600

600

600

600

600

600

600

600

600

600

600

594

594

588

583

621

64?

649

663

Aug.

649

649

649

628

570

564

564

564

564

564

558

535

515

515

510

480

465

455

431

431

431

445

440

440

440

386

350

350

350

350

350

Mean

151

60.3

54.5

221

56.1

57.0

53.4

129

628

854

599

49O

356

292

Sept.

350

350

350

314

292

272

264

264

264

310

338

338

338

338

338

338

342

338

338

382

408

408

408

408

408

408

436

445

440

44O

-

Runoff in 

acre-feet

9,280

3,590

3,350

160,200

3,450

3,170

3,280

7,700

38,610

50,840

36,830

30,130

21,160

211,400
298 SAN JUAN RIVER BASIH

Los Pinos River at Ignacio, Colo.

(Lucally known as Pine River)

Location.- Water-stage recorder, lat. 37°07'45", long. 107°37'50", in sec. 5, T. 33 N., 

K. 7 W., 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 and

October ib)3U to September 1947 in reports of Geological Survey. April 1899 to uctober 

1903, September 1910 to November 1912, and March 1913 to December 1931 in reports of 

State engineer of New Mexico.

Average discharge.- 28 years (1910-11, 1913-40), 373 second-feet, prior to completion of 

Vallecito Dam.

Extremes.- Maximum discharge recorded during year, 1,190 second-feet Aug. 22 (gage height, 

TTSTTTeet); minimum daily, 13 second-feet Apr. 27.

1910-14, 1930-47: Maximum discharge recorded, 5,570 second-feet Aug. 27, 1932, 

(gage height, 6.19 feet), from rating curve extended above 2,600 secord-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, which are poor. Pluw

regulated by Vallecito Reservoir (see p. 'J96). Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?

3

4

5

6

7

n

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

2R

?.*

30

31

Oct.

46

51

51

56

71

66

71

51

46

45

43

90

102

80

80

56

43

41

37

37

37

37

33

29

29

32

33

45

61.

49

41

Nov.

41

41

41

41

43

43

37

43

45

41

39

43

43

43

45

43

43

41

41

43

46

46

46

64

58

49

64

46

49

54

-

Dec.

102

80

69

66

66

66

66

66

64

64

66

69

66

66

64

*66

66

64

64

bSO

b55

b50

*b40

29

27

37

69

66

b60

b50

b40

Jan.

b45

b55 *b62

b50

b55

b70

b80

*b75

b70

b65

b65

b65

b70

b70

b65

b60

*b55

a60

a 70

a65

a65

*b70

b70

a70

a70

a70

a75

a75 *b70

b65

b60

Feb.

b65

b70

b75

b80 *b80

b80

bSO

b80

b75

b70

b67 *64

64

64

74

74

71

69

66

66

64

64

64

64

64

64

64

69

_

_

-

Month

December. ............. ....................

Calendar year 1946 ......................

March. .....................................

May. .......................................

September ............... .............. ...

Water year 1946-47 ... ..................

Mar.

64

71

69

66

66

66

66

66

66

66

66

66

66

66

66

66

66

69

71

71

71

74

74

69

66

66

69

71

74

71

71

Apr.

69

71

66

64

61

64

71

71

66

61

58

56

56

54

49

46

49

41

16

17

29

37

19

16

14

17

13

21

32

39

-

Secondfoot-days

1,589

1,362

1,883

19,441.5

1 951

2 115

4,841

48,172

May

41

35

45

86

83

61

51

39

54

321

652

594

365

340

389

530

370

330

345

330

311

293

400

571

599

571

613

736

709

676

700

Maximum

102

102

158

80

227

772

June

772

727

524

504

524

543

514

472

478

466

472

490

472

448

408

361

138

125

104

101

101

138

128

113

113

119

107

107

128

125

-

Minimum

29

27

3.1

79

13

JUI-T

101

110

107

107

101

104

74

67

60

 55

134

151

141

119

110

116

113

113

116

122

131

180

128

116

113

101

107

144

122

122

148

Aug.

141

148

148

240

193

168

307

182

189

200

196

204

186

189

186

186

164

168

154

154

208

604

330

272

260

235

175

171

164

175

164

Mean

51.3

45.4

60.7

53.3

3E7

161

132

Sept.

161

161

154

141

98

93

79

82

85

85

141

154

161

161

157

154

164

164

168

182

227

227

223

208

193

193

193

212

212

208

-

Runoff in 

acre-feet

3,150

3,730

38,550

SE E90

9,600

95,540

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records and records £o 

Bayfleld.

b Stage-discharge relation affected by Ice.
SAN JUAN RIVES BASIN

Animas River at Howardsville, Colo.

Location.- Water-stage recorder, lat. 37°50', long. 107°36' , in sec. 12, T. 41 N., R. 7 

W., 0.4 mile southwest of Howardville 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 1947 (no winter records 1936-39)".

Extremes.- Maximum discharge during year, 1,120 second-feet June 8 (tage height, 3.68 

feet) ; minimum daily, 12 second-feet Mar. 1.

1936-47: Maximum discharge, 1,700 second-feet June 21, 1938 (gage height, 4.5U 

feet), from rating curve extended above 800 second-feet; minimum daily, 11 secondfeet Feb. 27, 28, 1941, Mar. 17-20, 1945.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records gcod except those for periods of ice effect or no 

wnich are fair. No diversion above station.

record,

Discharge, in second-feet, water year October 1946 to September 19.<-7

Day

1

2

3

4

5

6

7

8

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

32

31

32

32

32

34

31

33

33

27

27

27

27

28

29

30

30

27

27

27

27

27

27

27

27

27

29

35

31

29

Nov.

27

27

26

26

26

26

26

27

26

26

25

25

26

26

26

25

24

24

24

24

24

24

24

23

24

24

22

24

24

24

-

Dec.

24

24

24

24

23

23

23

24

24

24

24

*24

22

22

22

22

20

22

22

22

22

22

21

21

21

21

20

20

18

16

16

Jan.

16

16

17

18

18

18

18

18

a!8

a!8

a!8

a!8

a!8

a!8

a!7

a!7

»17

17

17

17

17

17

16

16

16

16

16

16

15

a!6

a!6

Feb.

a!6

a!7

*17

17

16

17

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

13

_

_

-

Month

October. ............................. .....

November . ........................ ... .....

December ................................. .

Calendar year 1946 ................ ...

January ........... ...................... .

February .......... ............. .... . .

March. ..................... ...

April ............................ ... . . .

May. ............................. .... .

June ........... ..........................

July. ............. .................... ...

August ............ ............. ....

September. ........ . .... ..... .....

Water year 1946-47 ......

Mar.

12

13

15

15

15

15

14

14

14

14

13

13

*13

13

13

13

13

13

14

14

14

15

15

14

14

14

14

16

16

16

*17

Apr.

17

18

18

18

18

18

18

18

18

18

18

18

18

20

22

24

27

28

27

32

50

42

43

42

39

42

46

46

47

63

-

Secondfoot-days

909

749

677

32,863

526

449

438

873

9 454

14^525

10,650

3,761

3,300

46,311

May

101

178

309

435

475

515

435

460

495

358

284

222

190

190

184

163

155

172

194

232

309

386

345

256

318

405

425

372

272

292

327

Maximum

35

27

24

717

IB

17

17

63

515

745

608

318

214

745

June

340

450

470

405

381

425

608

745

745

650

520

340

264

280

430

570

565

460

410

515

505

354

296

336

455

550

590

614

632

620

-

Min imum

27

22

16

11

15

13

12

17

101

264

131

73

70

12

July

608

570

565

565

500

490

525

470

480

450

425

381

340

350

43C

35f

32T

29f

28C

25C

22f

236

218

204.

187

175

16S

15E i4e

14?

133

Aug.

125

113

111

129

127

109

101

99

95

97

92

87

85

79

73

79

87

89

97

105

125

318

272

197

163

138

123

117

111

107

111

Mean

29 3

25 .0 2i!e

90.0

17 ,0

16 .0

14.1

29.1

305

484

344

121

110

127

Sept.

119

109

97

92

89

85

78

73

85

113

123

117

103

103

97

89

111

158

214

197

163

142

125

111

101

92

84

78

76

a70

-

Runoff in 

acre-feet

1,800

1,490

1,340

65,180

1 , 040

891

869

1 730

18 1 750

28, 810

21,120

7,460

6,550

91,850

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed en basis of weather records. 

Note.- Stage-discharge relation affecteJ by ice Dee. 13-18, 28-31, Jan. 1-3, 

PeFT'S, 28, Mar. 1-27.
SAN JUAN RIVER BASIN

Animas River above Tacoma, Colo.

Location - Water-stage recorder, lat. 37°34'00", long. 107°46 I 30", in sec. 8, T. 38 N., 

R. 8 W., 0.8 mile upstream from Tank Creek and 3.3 miles north of Tacoma.

Drainage area.r 348 square miles.

Records available.- January 1946 to September 1947. March 1908 to November 1909, February 

to October 1911 at site 4-| miles downstream, records not equivalent.

Extremes.- 1946: Maximum discharge during period January to September, 5,060 second-feet 

June 8 (gage height, 6.73 feet); minimum daily, 89 second-feet Jan. 27.

1946-47: Maximum discharge during year, 5,950 second-feet June 9 (gage height, 7.12 

feet); minimum daily, 78 second-feet Mar. 1. 

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records excellent above 500 second-feet and good below except those for periods 

of ice effect or no gage-height record, which are fair. Most of flow of Cascade Creek 

diverted around station for power development. 25,630 acre-feet diverted from Cascade 

Creek for period Jan. 22 to Sept. 30, 1946; 37,790 acre-feet diverted for water year 

1946-47.

Cooperation.- Records of diversion furnished by Western Colorado Power Co.

Rating table, Feb. 16 to Sept. 30, 1947 (gage height, in feet,

and discharge in second-feet) 

(Shifting-control method used Feb. 16 to Mar. 23)

2.2 80

2.3 95

2.6 155

2.8 210

3.0 280

3.3 420

3.9 800

4.4 1,170

4.8 1,580

5.5 2,600

6.6 4,800

Discharge, in second-feet, 1946-47 

1946

Day

1

2

3

4

5

6

7

8

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.

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

*104

109

102

103

96

89

105

105

94

104

Feb.

110

104

108

103

99

99

105

101

92

103

97

100

93

96

99

98

101

94

97

97

96

102

102

*109

106

103

100

103

_

_

-

Mar.

104

101

104

101

100

97

98

92

99

101

104

103

103

103

103

104

103

108

118

120

122

139

136

147

150

153

185

212

198

*218

244

Apr.

237

218

195

205

225

237

304

279

268

262

276

344

420

415

395

425

557

563

533

563

650

828

982

1,120

1,310

1,370

1,100

996

968

905

-

May

961

975

1,120

1,110

1,270

1,300

1,150

1,100

1,200

1,150

884

748

664

638

599

575

569

624

657

644

722

814

722

670

644

683

774

716

670

587

533

June

563

618

975

1,980

3,100

3,440

3,640

3,620

3,360

3,360

3,720

3,520

3,320

3,000

3,020

3,020

3,320

2,390

1,770

1,700

1,550

1,400

1,490

1,330

1,260

1,240

1,180

1,080

1,010

940

-

July

884

794

800

748

722

696

683

780

722

664

618

716

676

657

605

557

557

509

527

702

575

527

509

425

400

385

390

376

372

367

410

Aug.

445

385

358

324

304

282

276

265

248

244

304

376

465

390

372

354

324

320

354

316

312

320

425

405

349

324

316

316

308

300

320

Sept.

312

308

290

265

251

234

222

210

202

195

195

215

200

190

195

192

180

228

258

234

222

215

205

200

192

192

190

182

180

185

-

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Jan. 22 to Mar. 26.
SAN JUAN RIVER BASIN

Discharge, in second-feet, of Aniraas River above Tacoma, Colo., 1946-47--Continued

1946-47

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.

185

265

279

372

282

272

304

279

268

268

240

225

220

215

218

215

218

218

190

200

210

210

200

200

190

190

190

225

280

240

225

Nov.

220

220

215

210

205

205

205

200

200

185

190

200

200

190

180

170

175

175

175

180

185

185

185

188

172

172

180

178

180

174

-

Deo.

180

180

170

176

176

170

*170

154

152

146

158

168

162

164

152

152

150

154

158

165

160

160

155

155

155

148

148

142

128

120

105

Jan.

105

105

105

105

105

105

*110

110

110

110

110

110

110

110

105

105

105

105

105

105

105

105

105

105

100

100

100

100

88

92

98

Feb.

100

100

100

*100

100

100

100

100

100

92

86

88

90

88

90

95

99

94

88

97

86

101

94

90

86

92

89

84

_

_

-

Mar.

78

101

95

*105

95

92

89

92

90

86

90

88

86

90

89

88

103

109

119

131

143

158

158

155

149

149

160

180

180

180

198

Apr.

192

214

210

186

175

162

170

165

172

168

170

160

160

192

259

288

325

400

340

385

540

572

498

540

410

395

410

410

375

450

May

754

1,240

2,030

2,740

2,960

2,840

2,240

2,160

2,570

2,040

1,620

1,240

1,170

1,220

1,110

989

989

1,050

1,170

1,430

1,740

2,090

2,000

1,390

1,710

2,300

2,420

2,220

1,470

1,580

1,820

June

1,630

2,380

2,420

2,030

1,920

2,270

3,840

4,600

4,640

4,120

3,100

1,620

1,220

1,360

2,030

3,000

3,040

2,200

1,750

2,450

2,700

1,610

1,290

1,270

1,780

2,420

2,660

2,680

2,570

2,520

Jul''

2,520

2,440

2,210

2,260

1,880

1,880

2,180

1,790

1,710

1,560

1,440

1,280

1,150

1,090

1,520

1,200

1,030

940

898

849

748

800

748

696

650

612

f92

f79

?53

522

486

Aug.

468

438

410

696

780

553

486

462

438

438

432

410

426

380

355

375

516

592

605

624

754

3,000

2,030

1,070

814

690

618

566

560

754

650

Sept.

735

650

586

516

498

504

456

420

486

631

683

624

553

492

450

405

438

624

926

954

774

670

592

528

492

450

426

390

365

355

Winter discharge measurement made on this day. 

Note.- No gage-height record Oct. 11, Oct. 21 to Nov. 22, discharge computed or basis of records 

for station at Howardville. Stage-discharge relation affected by ice Dec. 20-25, Dec. 31 to Feb. 1

Monthly discharge, in second-feet, 1946-47

Month

Calendar year .......................

January 1947 ................ ..............

March. ...................................... 

April. ............. ........................

June ........................................

Water year 1945-47 ......................

Secondfoot-days

-

1,011 

2,817 

3,970 

17,150 

25,473

18^353

in, 401 

^,539

-

7.10, 

5,399 

4,833

_

3,238

3,726 

9,093

54,3nr 

73,120

38,813

lf,673

240,709

Maximum

_

109 

110 

244 

1,370 

1,300 

3,720 

884 

465 

312

-

304 

220 

180

110 

101 

198 

572

2,960 

4,640 

2,520 

3,000 

954

4,640

Minimum

.

89 

92 

92 

195 

533 

563 

367 

244 

180

-

185 

170 

105

88 

84 

78 

160 

754 

1,220 

48S 

355 

355

78

Mean

.

101 

101 

128 

572 

822 

2,187 

592 

336 

218

-

232 

190 

156

104 

93.9 

120 

303 

1,752 

2,437 

1,252

556

659

Runoff in 

acre-feet

_

2,010 

5,590 

7,87 > 

34,020 

50,520 

130,100 

36,400 

20,630 

12,970

30:.i.' i

14,270 

11,300 

9,590

6,420 

5,210 

7,390 

18,040

1 , 70u 

145,000 

!">', 980 

42,430 

33,070

477,400
302 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 

S., at Western Colorado Power Co.'s plant at Durango, half a mile upstream from 

Lightner Creek. Datum 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 Octocer iyaa to September 1947 in reports of Geological Survey. June 1895 to December 1905 

and December 1910 to September 1947 in reports of State engineer.

Average discharge.- 46 years (1895-1900, 1901-5, 1910-47), 904 secund-feet.

Extremes.- Maximum discharge during year, 5,130 second-feet June 10 (gage height, 5.36 

reet); minimum daily, 139 second-feet Dec. 30.

1895-1900, 1901-5, 1910-47: Maximum discharge, 25,000 second-feet Oct. 5, 1911 

(gage htight, 11 feet), from rating curve extended above 7,000 second-feet; discharge 

of flood of June 29, 1927, 20,000 seoond-feet (gage height, 9.65 feet); minimum dailv, 

50 second-feet Dec. 22, 1917.

Remarks.- Records excellent Apr. 11 to July 31, others good except those for periods of no 

gage-neight record, which are fair. Diversion above station for irrigation. Natural 

regulation by many lakes and artificial regulation for power.

Discharge, in second-feet, wster year October 1946 to September 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.

240

279

385

354

374

348

348

374

359

348

334

308

304

283

299

304

299

304

299

283

262

270

274

270

262

250

247

266

338

444

364

Nov.

325

308

295

270

274

274

274

291

295

291

258

266

283

279

287

270

250

233

244

247

262

250

247

266

244

244

254

266

247

262

-

Dec.

258

244

258

262

266

270

270.

258

226

240

250

254

254

244

236

219

230

226

212

205

222

209

205

240

219

202

212

212

180

139

166

Jan.

180

195

205

182

205

212

222

212

212

205

212

185

a!94

a200

a!90

al50

a!60

a!90

a!85

188

205

209 209*

209

209

199

185

199

199

199

199

Feb.

185

199

188

195

199

199

199

199

188

188

199

199

195

192

192

195

192

202

199

195

202

195

195

182

192

192

199

202

-

.

-

Month

October. ...................................

November ...................................

Decembe r ...................................

Calendar year 1946 ......................

January ............................. ......

February. .......................... ...

March. .....................................

April. ............................

May. .......................................

June .......................................

July. .................................... .

August ............. .............. ........

September. .................................

Water year 1946-47 ................ .....

Mar.

180

174

163

195

188

192

185

185

185

169

177

180

177

180

185

182

172

205

222

233

250

279

295

283

270

274

283

299

329

329

343

Apr.

359

374

390

385

369

a360

a365

a365

a375

a370

369

354

338

348

426

517

573

664

622

622

768

872

816

848

760

664

650

657

636

622

-

Secondfoot-days

9,673

8,056

7,088

213,752

6,105

5,458

6,963

15,838

79,518

82,960

43,144

28,510

22,239

315,552

May

848

al,350

2,240

3,390

3,620

3,900

3,250

2,940

3,590

3,320

3,090

2,440

2,220

2,400

2,320

2,050

1,880

1,870

1,920

2,230

2,500

2,850

2,900

2,290

2,190

2,760

3,070

3,120

2,390

2,110

2,470

Maximum

444

325

270

3,780

222

302

343

872

3,900

4,760

2,530

3,570

1,270

4,760

June

2,130

2,570

3,120

4,460

2,580

2,410

3,350

3,500

4,760

4,720

3,920

2,600

1,900

1,710

1,980

2,820

3,340

2,830

2,160

2,410

3,110

2,400

1,880

1,680

1,760

2,290

2,570

2,680

2,680

2,640

-

Minimum

240

233

139

139

150

182

163

338

848

1,680

562

464

497

139

Julv

2,530

2,5.10

2,260

2,250

2,110

1,8.10

2,180

2,130

1,790

1,790

1,620

1,520

1,390

1,260

1,450

1,460

1,290

1,230

1,100

1,070

980

930

903

858

822

742

690

665

641

601

562

Aug.

540

518

490

525

1,140

849

682

609

585

555

548

525

525

518

478

464

617

777

912

894

857

2,460

3,570

2,010

1,370

1,090

950

822

786

940

894

Mean

312

269

229

586

197

195

225

528

2,565

2,765

1,392

920

741

865

Sept.

903

885

849

759

716

665

657

578

593

716

867

822

716

657

593

585

585

682

950

1,270

1,120

940

849

759

690

633

609

562

532

497

*

Runoff in 

acre feet

19,190

15,980

14,060

424,000

12,110

10,830

13,810

31,410

157,700

164,500

85,570

56,550

44,110

625,800

a No gage-height record; discharge compute! on basis of weather records and records for stations

on nearby streams.
SAN JUAN RIVER BASIN 303

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. Prior to Oct. 

5, 1946, datum was 1.58 feet higher.

Records available.- November 1933 to September 1947. 

Average discharge.- 13 years (1934-47), 986 second-feet.

Extremes.- Maximum discharge during year, 7,340 second-feet Aug. 2? (gage height, 8.00 

feet); minimum daily, 120 second-feet Jan. 17.

1933-47: Maximum discharge, 11,900 second-feet May 14, 1941 (gage height, 9.50 

feet, datum then in use): minimum daily, 90 second-feet Jan. 21, 1935. 

Maximum flood known occurred Oct. 5 or 6, 1911.

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

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2'6

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

22

23

24

2b

26

27

28

29

30

31

Oct.

268

a280

a330

a39o

397

390

358

397

372

364

361

328

325

300

306

318

309

309

312

289

283

283

286

286

278

276

278

298

420

546

456

Nov.

401

372

378

344

344

337

337

358

368

344

312

309

325

321

328

312

289

270

273

283

292

281

276

315

295

273

270

283

263

270

-

Dec.

268

250

258

263

268

273

281

281

248

248

260

265

273

268

260

248

255

258

243

227

243

232

232

260

260

246

*276

273

236

b!85

b!80

Jan.

b!90

*b200

b215

b!70

b!90

b210

b240

b230

b220

*b210

b210

b220

b230

b220

*b200

blSO

a!20

al-iO

alSO

a!70

a!60

a!9o

*a230

a220

a220

a230

a230

a240

a200

*a!70

b!60

Feb.

b!70

b!90

216

221

234

241

*241

243

232

229

234

236

236

241

246

250

241

238

236

227

232

227

232

218

225

227

238

246

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March ......................................

April. ......................................

Mnv

September ..................................

Water year 1946-47 .......... ...........

Mar.

' 223

221

195

225

234

227

229

223

229

223

236

241

227

225

229

232

223

243

263

270

269

312

347

321

300

298

303

309

337

344

350

Apr.

390

393

420

420

390

397

344

344

341

358

334

337

318

303

358

456

523

640

675

675

820

1,010

975

975

940

790

730

730

700

675

Secondfoot-days

10,393

9,423

7,818

223,244

33,234

25,661

337,086

May

850

1,430

2,300

3,370

3,710

4,000

3,520

3,080

3,620

3,710

3,520

2,840

2,480

2,620

2,550

2,360

2,180

2,120

2,120

a2,30o

a2,500

2,920

3,000

2,480

2,300

2,690

3,080

3,170

2,550

2,240

2,550

Maximum

546

401

281

3,870

240

350

4,600

2,620

1,430

4,600

June

2,360

2,620

3,260

2,840

2,690

2,550

3,340

4,300

4,600

4,600

4,000

2,690

2,070

1,850

2,070

2,760

3,260

2,840

2,300

2,360

3,080

2,550

2,070

1,850

1,900

2,360

2,620

2,690

2,690

2,690

Minimum

26E

26!

18C

17C

12C

19E

1.85C

532

12C

July

2,620

2,620

2,360

2,360

2,240

1,960

2,300

2,300

1,960

1,960

1,800

1,650

1,520

1,350

1,520

1,600

1,350

1,190

1,120

1,080

975

910

940

850

760

700

673 63-j

615

575

541

Aug.

523

496

464

532

1,170

820

650

605

580

550

546

528

611

536

482

669

732

760

975

1,040

975

3,660

4,200

2,420

1,750

1,390

1,190

1,040

1,010

1,210

1,120

M'*n

335

314

252

612

199

230

262

559

2,795

855

924

Sept.

1,080

1,080

1,040

940

850

820

790

923

730

880

1,010

975

880

790

675

645

635

760

1,010

1,430

1,270

1,040

910

820

730

650

630

600

536

532

Runoff in 

acre- feet

20,610

18,690

15,510

442,800

12,230

12,790

16,120

33,240

166,300

89,330

65,920

50,900

668,500

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of weather records and records for station at 

Farmington.

b Stage-discharge relation affected by ice.
304 SAN JUAN RIVER BASIN

Animas River at Farmington, N. Mex.

Location.- Water-stage recorder, lat. 36°43'20", long. 108°12'00", in ST£ sec. 16, T. 

29 N., R. 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 Rive- near Farmington), 

September 1912 to December 1914, and October 1930 to September 1947 in reports of 

Geological Survey. June 1904 to October 1905 (published as Animas River near Farmington) and September 1912 to December 1931 in reports of State enginee-.

Average discharge.- 34 years (1912-25, 1926-47), 1,023 second-feet.

Extremes.- Maximum discharge during year,, 11,200 second-feet Aug. 22 (gage height, 9.03 

feet); minimum.daily, 140 second-feet Jam 17.

1930-47: 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.

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

wnich are fair. Diversions above station for irrigation. Records of water analyses 

for the water year 1947 are given in Water Supply Paper 1102.

Discharge, in second-Teet, water year October 1946 to September 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.

215

226

284

336

318

318

322

332

332

322

318

322

309

296

280

288

292

280

280

280

272

280

276

268

272

272

264

276

322

451

473

Nov.

395

354

345

340

318

314

309

318

350

345

332

296

304

292

300

304

309

284

260

264

268

280

276

292

318

288

276

292

296

276

-

Dec.

288

288

276

288

288

288

292

292

288

264

272

*272

288

288

284

276

260

284

«b260

b250

b260

292

280

264

300

*300

327

300

276

b250

«b200

Jan.

b210

b230

b250

t>190

b210

b250

*b280

b260

b240

b230

b230

b240

*b260

b250

b240

b210

b!40

b!60

b210

b200

*b!90

b240

b260

b260

b250

b260

b270

b280

a230

b200

«b!80

Feb.

b210

b230

b240

*260

276

280

280

276

272

264

253

250

253

250

246

250

246

236

232

228

222

228

225

236

225

239

242

268

_

_

-

Month

October ....................................

November . ..................................

December. ....................................

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March. .....................................

April ......................................

Hay. .......................................

June. ......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

250

232

228

218

246

242

239

236

239

253

246

253

246

239

232

228

232

218

242

250

264

280

322

336

314

280

268

272

276

292

280

Apr.

2S8

304

322

332

309

288

272

264

260

268

256

242

228

215

208

256

296

314

451

420

456

669

746

648

711

568

462

440

430

390

-

Secondfoot-days

9,378

9,195

8,635

194,351

7,110

6, 917

7 953

11,' 313

77,877 

73,730

37,712

34,095

22,763

306,678

May

435

912

1,800

2,780

3,280

3,540

3,360

2,860

3,100

3,720

3,720

3,100

2,480

2,480

2,400

2,190

2,060

1,990

1,920

2,120

2,330

2,620

2,860

2,550

2,120

2,400

2,860

3,020

2,620

2,060

2,190

Maximum

473

395

327

3,640

28O

280

336

746

3,720

4,500

2 330

5^540

1,090

5,540

June

2,190

2,190

2,780

2,620

2,260

2,120

2,550

3,540

4,400

4,500

4,100

2,700

1,740

1,400

1,510

2,190

2,780

2,700

2,120

1,920

2,550

2,550

1,860

1,510

1,460

1,800

2,330

2,480

2,480

2,400

-

Minimum

21

26C

20C

13(

14<

21<

21!

20!

43.

1,40(

32

24!

47!

14C

July

2,330

2,260

2,120

1,990

1,990

1,860

1,920

2,120

1,800

1,800

1,620

1,460

1,300

1,140

1,070

1,400

1,140

974

864

808

776

669

697

620

555

495

462

410

381

354

327

Aug.

280

264

246

250

584

822

507

400

368

345

336

314

309

425

332

1,010

1,110

856

872

1,050

983

4,760

5,540

3,180

1,990

1,460

1,250

1,080

992

1,040

1,140

Mean

5 303

> 306

> 279

) 532

3 229

3 247

, 257

3 377

5 2,512

1 2,458

J 1,217

> 1,100

3 759

> 840

Sept.

1,030

1,030

992

888

800

768

768

739

858

725

856

872

760

662

614

562

537

568

739

1,060

1,090

938

808

725

676

614

568

537

501

478

Runoff in 

acre-feet

18,600

18,240

17,130

385,500

14,100

13,720

15,770

22,440

154,500

146,200

74,800

67,630

45,150

608,300

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and 

near Cedar Hill.

b Stage-discharge relation affected by ice.

pe-.ords for station
SAN JUAN RIVER BASIN 305

Cement Creek near Silverton, Colo.

Location.- Water-stage recorder, lat. 37°51'20". long. 107°40'35", in sec. 31, T. 42 N., 

FT! 7 W. , at Yukon mine, 0.2 mile downstream from Porcupine Gulch and 3 iriles northwest 

of Silverton. Datum of gage is 9,880.28 feet above mean sea level (Bureau of Reclamation bench mark). Water-stage recorder at same site and datum May 1936 to September 

1937.

Drainage area.- 13.5 square miles.

Records available.- May 1936 to September 1937, July 1946 to September 1947.

Extremes.- Maximum discharge during period July 1946 to September 1947, 241 second-feet 

June 7 (gage height, 3.18 feet); minimum, 1.4 second-feet Feb. 28 (gage height, 1.26 

feet), from rating curve extended below 9 second-feet.

1936-37, 1946-47: Maximum discharge, 547 second-feet July 18, 1936 (gage height, 

4.45 feet), by slope-area method; minimum, that of Feb. 28, 1947. 

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good above 40 second-feet and fair below. All upstream diversions 

returned to creek above station.

Discharge, in second-feet, 1946-47 

1946

Day

1

2

3

4

5

6

7

8

July

_

_

_

_

_

_

_

-

Aug.

21

20

19

17

16

16

16

15

Sept.

12

11

11

10

10

9.4

8.8

8.2

Day

9

10

11

12

13

14

15

16

July

_

_

_

_

_

_

_

-

Aug.

14

14

17

20

17

16

15

15

Sept.

8.2

8.2

9.4

8.8

8.8

8.2

9.4

8.2

Day

17

18

19

20

21

22

23

24

July

_

_

_

-

_

-

-

-

Aug.

14

14

12

12

11

12

19

15

Sept.

8.2

12

9.4

8.2

8.2

8.2

7.6

7.6

Day

25

26

27

28

29

30

31

July

31

29

29

25

23

22

23

Aug.

13

12

13

14

12

12

12

Sept.

.6

.6

.6

.6

.6

.6

-

Day

1

2

3

4

5

6

7

8

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

a!5

a!3

a!3

a!3

a!4

a!3

a!2

12

11

11

10

10

9.4

10

9.4

10

10

9.4

10

9.

9.

9.

9.

9.

9.4

8.8

9.4

10

9.4

10

Nov.

10

9.4

8.8

8.8

8.8

a.z

8.2

9.4

8.8

8.8

a. 8

8.2

8.2

8.8

8.8

8.2

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.8

9.4

-

Dec.

9.4

9.4

10

10

10

10

9.4

9.4

10

10

12

11

11

11

11

11

11

11

9.4

11

10

11

11

11

11

11

11

11

8.8

8.2

8.8

Jan.

9.4

11

11

11

11

10

10

9.4

10

9.4

9.4

9.4

9.4

9.4

9.4

8.8

9.4

10

9.4

10

9.4

10

9.4

11

10

10

11

11

8.2

11

9.4

Feb.

8.2

10

9.4

10

9.4

9.4

9.4

9.4

9.4

10

10

9.4

10

9.4

9.4

9.4

10

10

10

10

8.8

10

10

10

10

10

10

6.1

_

-

-

Mar.

11

10

9.4

8.8

8.8

8.8

8.8

8.8

8.8

8.2

8.8

8.2

8.2

8.2

8.2

8.2

8.2

7.6

7.6

8.8

9.4

10

9.4

9.4

8.8

8.8

8.8

8.8

9.4

9.4

11

Apr.

11

11

12

11

10

9.

9.

9.

9.

9.

9.

9.

9.

9.

12

15

13

24

17

20

31

31

30

30

21

21

24

24

20

24

-

May

57

97

122

128

138

126

110

125

124

90

71

54

51

54

48

43

52

64

78

97

119

132

110

88

119

140

142

131

114

118

128

June

128

154

152

135

129

146

182

170

160

157

129

90

80

82

106

126

129

110

103

122

111

86

77

81

101

121

119

114

119

112

-

July

114

107

99

97

86

90

90

80

84

81

78

75

74

77

81

73

69

64

63

55

49

47

43

39

35

34

33

32

32

29

30

Aug.

28

25

24

33

28

26

25

24

24

25

23

22

23

21

20

22

23

24

25

24

29

59

38

27

22

21

20

19

18

19

23

Sept.

24

22

20

22

20

20

19

18

22

24

25

21

20

20

20

19

20

32

55

45

33

28

25

22

19

15

15

15

14

14

-

a No gage-height record; discharge computed on basis of records for stations on nearby streams. 

Monthly discharge, In second-feet, 1946-47

Month

September. ..................................

The period. ................................

December. ...................................

Calendar year .......................

May.........................................

September. ..................................

Water year 1946-47 .......................

Seccndfoot-days

i A?

264.6

-

329.2

264.0

319.8

-

698

12,479.5

Maximum

12

-

15

10

12

-

182

55

182

Minimum

22

7.6

-

8.8

8.2

8.2

-

8.2

6.1

7.6

9.4

77

29

14

6.1

Mean

8.82

-

10.6

8.80

10.3

-

9.91

9.54

8.92

16.8

99.0

121

65.8

25.3

22.9

34.2

Runoff in 

acre-feet

361

922

525

1,810

653

524

634

-

609

530

549

997

6,090

7,200

4,050

1,560

1,360

24,760
306 SAN JOAN RIVER BASIN 

Mineral Creek near Silver-ton, Colo.

Location.- Water-stage recorder, lat. 37°48'50", long. 107°41'45", in sec. 13, T. 41 N. 

R. 8 W. , 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.

Drainage area.- 43.9 square miles.

Records available.- May 1936 to September 1947 (no winter records 1936-39).

Extremes.- Maximum discharge during year, 810 second-feet June 7 (gage flight, 3.40 

feet); minimum, 4.2 second-feet Mar. 1 (gage height, 0.86 foot).

1936-47: Maximum discharge, 1,700 second-feet June 29, 1938 (gage height, 4.69 

feet), from rating curve extended above 550 second-feet; minimum, 3. A 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 

aiversion above station.

Discharge, in second feet, water year October 1946 to September 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

31

Oct.

33

56

52

50

50

52

50

47

47

43

34

38

36

35

37

35

37

35

31

32

33

32

31

30

30

29

30

33

41

34

30

Nov.

29

28

28

27

27

27

27

26

27

25

24

26

26

26

24

21

23

23

24

24

24

25

25

24

24

26

26

25

25

23

-

Dec.

23

24

22

24

24

24

23

21

21

21

23

*22

21

21

21

21

15

19

18

20

19

19

19

19

20

20

20

19

17

b!4

b!4

Jan.

b!4

b!4

b!4

b!5

b!5

*b!5

b!5

b!5

16

16

16

15

15

16

15

b!5

*b!5

b!5

b!5

b!5

b!5

15

15

14

14

14

14

14

12

b!3

b!4

Feb.

b!4

b!4

*14

14

14

14

14

14

14

14

12

12

13

12

14

15

15

14

15

14

14

15

15

15

15

15

15

11

_

_

-

Month

December .............. ....................

Calendar year 1946 ......................

May. .......................................

September . ............... .................

Water year 1946 -47 ......................

Mar.

9.0

18

16

17

18

17

ID

17

16

16

16

IS

IS

15

15

14

15

15

15

16

18

19

17

16

16

17

17

19

19

19

21

Apr.

21

22

22

20

19

18

18

17

18

17

16

16

17

22

26

30

39

43

38

46

59

63

63

63

51

53

59

53

48

59

Secondfoot-days

1,183

759

628

29,977.6

455

3,366

41, 957.0'

May

117

212

306

357

393

375

322

362

366

282

215

177

165

168

159

147

159

177

198

236

286

318

286

229

278

344

357

326

240

258

266

Maximum

56

29

24

618

393

194

668

June

274

362

375

318

298

362

558

668

662

608

470

298

229

250

357

481

. 476

384

318

435

486

322

266

274

348

445

486

498

514

520

Minimum

29

21

14

8.2

63

9.C

July

503

476

445

445

393

411

460

402

425

384

348

326

294

31 S

406

310

274

250

240

208

187

198

180

165

153

144

147

150

142

130

122

Aug.

119

109

106

204

180

125

112

101

94

112

104

94

94

84

78

82

96

117

122

122

147

380

274

171

136

119

109

109

117

180

153

Mean

38.2

25.3

20.3

82.1

14.0

134

112

115

Sept.

156

144

128

119

114

112

96

89

101

130

139

128

114

104

89

80

99

133

194

177

147

122

109

99

89

82

75

70

64

63

Runoff in 

acre feet

2,350

1,510

1,250

59,480

902

776

1,010

16.030

17,920

8,230

6,680

83,230

* Winter discharge measurement made on this day. 

b Stace-dlsoharge relation affected by ice.
SAN JUAN RIVER BASIN 307

Hermosa Creek near Hermosa, Colo.

Location.- Water-stage recorder, lat. 37°25'30", long. 107°50'15", in NWi 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 £o June 1912, April 1913 to September 1914 (fragmentary), and October 1940 to September 1947 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 1947 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, 755- second-feet May 10 (gage height, 2.55 feet); 

minimum dally, 13 second-feet Jan. 16.

1920-28, 1940-47: 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.

Ratine table, water year 1946-47, except periods of Ice effect

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

(Shifting-control method used Aug. 4 to Sept. 19)

1.0

1.1

1.2

1.5

1.6

1.7

59

75

95

118

150

2.0

2.2

2.3 

2.5

190

290

420

500

700

Discharge, in second-feet, water year October 1946 to September 19»'7

Day

1

2

3

4

5

6

7

8

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

32

37

31

33

31

32

29

28

26

20

20

21

21

22

22

24

23

19

to

20

20

20

20

20

19

21

26

69

5B

37

Nov.

25

24

23

21

20

20

20

21

23

23

19

22

25

24

24

19

21

23

25

25

24

*22

22

26

21

25

25

25

25

25

-

Dec.

24

23

*22

25

26

26

27

21

18

18

18

19

19

20

20

20

20

20

14

16

17

18

18

18

18

18

18

18

14

14

18

Jan.

17

16

16

16

17

*17

17

17

17

17

17

17

17

16

16

13

14

15

16

16

16

16

16

16

16

16

16

16

15

16

17

Feb.

17

17

17

*17

17

17

17

17

14

16

15

15

16

15

16

17

17

17

16

17

16

17

17

16

16

16

16

16

_

-

Month

October. ...................................

November . ........................ .........

December. ..................................

Calendar year 1946 ......................

January. ................................. .

February. ....................... .........

March. ........................... .........

April ......................................

May. .......................................

June .......................... ............

July. ............. .......................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

16

18

18

19

19

19

18

19

*18

18

20

18

19

21

23

22

31

40

45

56

69

81

70

61

55

58

64

79

83

91

106

Apr.

97

106

104

91

79

70

72

69

75

70

72

65

65

87

124

158

178

210

178

220

265

270

240

240

1B6

166

166

170

158

170

-

Second 

foot-days

842

687

605

21,242

500

457

1,294

4,221

7,'405

1 958

3,'o83

2,336

37,714

May

265

344

357

436

580

620

550

530

610

650

630

510

500

580

580

550

484

436

420

436

436

420

406

378

371

371

399

399

364

350

364

Maximum

69

26

27

304

17

17

106

270

650

385

113

385

109

650

June

350

357

364

350

344

338

371

385

378

357

308

260

220

200

205

215

220

210

190

205

230

200

178

162

154

147

144

131

121

111

-

Minimum

19

19

14

10

13

14

16

65

111

33

29

46

13

July

102

10C

91

8S

91

8S

104

113

87

77

70

64

61

58

65

61

56

52

50

47

46

49

45

42

39

38

37

35

34

33

33

Aug.

30

29

29

62

95

56

50

49

45

46

58

49

47

47

42

49

73

91

89

79

134

385

332

225

170

134

116

109

104

150

109

Mein

27.2

22.9

19 5

58.2

16.1

16.3

41.7

141

462

247

99 . 5

77^9

103

Sept.

102

109

106

93

87

95

87

77

93

106

106

87

77

70

65

62

73

81

83

100

79

70

64

59

56

52

52

50

49

46

-

Runoff in 

acre feet

1,670

1,360

1.2OO

42,120

992

906

2,570

8,370

28,420

 z'oon

e'i2o

4,630

74,810

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 1-12, 16-20, 25-30, Dec. 1-4, Dee. B to Mar. 

(no gage-height record Feb. 1 to Mar. 4; discharge computed on basis of 1 discharge measurement and 

weather records).
308 SAN JUAN RIVER BASIN

Lightner Creek near Durango, Colo.

Location.- Water-stage recorder, lat. 37°16', long. 107°53', In sec. 37, 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 1939 (at site 2 miles upstream), and October 193y to September 1947 in reports of Geological Survey. June 1927 to September 

1939 (at site 2 miles upstream), and October 1939 to September 1947 in reports of 

State engineer.

Average discharge.- 20 years, 22.2 second-feet.

Extremes.- Maximum discharge during year, 786 second-feet Aug. 20 (gag? height, 4.00 

reet); minimum daily, 1.2 second-feet Aug. 11, 12.

1927-47: 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 fair above 10 second-feet and poor below. No diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

1.6

6.3

6.0

4.6

4.9

4.4

3.8

4.1

3.6

3.8

3.6

4.1

3.6

3.0

3.0

3.0

2.7

2.7

3.0

3.0

1.9

1.8

1.8

1.7

1.8

1.9

2.1

4.0

6.6

3.8

3.0

Nov.

2.7

4.1

3.8

3.0

3.3

3.0

2.2

3.0

3.8

3.0

2.1

2.5

2.7

3.0

3.0

3.0

2.5

2.1

2.1

2.7

2.7

2.5

3.0

3.3

2.5

2.5

3.0

2.7

2.7

2.7

-

Dec.

3.0

3.0

3.0

3.0

3.0

3.0

4.1

3.8

3.0

3.0

3.3

2.5

2.1

2.7

2.5

2.1

*2.2

3.8

2.5

3.0

3.6

3.6

2.7

2.

2.

2.

2.

b2.

2.

2.

2.

Jan.

2.8

3.6

3.5

3.3

3.6

3.7

4.2

4.5

4.3

4.0

4.0

4.2

4.4

4.2

3.8

3.5

4.0

4.3

4.0

4.0

4.2

4.4

4.5

4.5

4.6

4.8

5.0

5.2

4.7

4.3

4.4

Feb.

4.6

5.2

5.8

5.8

5.8

6.0

6.2

6.4

6.5

6.6

6.6

6.6

6.5

7.2

7.0

8.0

8.4

8.2

8.0

7.8

7.5

7.4

7.6

8.4

*8.2

8.9

8.0

8.0

-

_

-

Month

December ...................................

Calendar year 1946 ......................

April. .....................................

May

Jnly. .........

Augu 

Sept

St. ....................................

ember. .................................

Water year 1946-47 ......................

Mar.

7.7

7.7

8.0

9.3

9.3

8.4

8.4

8.0

8.0

8.4

8.4

6.6

6.0

6.6

7.O

8.4

8.9

9.3

9.3

8.4

B.4

12

14

11

9.8

10

10

12

14

15

16

Apr.

18

20

20

18

16

14

13

13

13

12

12

11

11

10

11

12

19

25

22

24

29

31

25

24

19

15

13

13

12

10

Secondfoot-days

90.1

2,272.9

426.8 

184.1

3,960.5

May

12

26

36

47

46

42

39

34

38

60

76

86

71

76

76

64

58

59

57

58

53

46

45

36

31

31

31

29

25

22

24

Maximum

4.1

173

98 

14

98

June

21

20

22

18

16

15

16

18

16

16

16

14

12

12

11

11

11

11

11

10

10

10

8.8

8.8

8.0

7.7

7.3

7.0

6.0

5.6

Minimum

2.1

1.2

1.2

July

5.6

6.0

5.3

5.3

5.3

4.9

4.4

5.3

4.9

4.6

4.6

4.4

4.4

4.2

4.2

4.2

4.0

4.0

4.2

4.2

4.2

4.2

4.2

4.0

4.0

4.2

3.6

3.1

3.1

2.7

2.6

Aug.

2.6

2.7

2.7

30

4.0

2.0

2.0

2.0

2.0

2.0

1.2

1.2

2.0

3.0

3.0

3.0

7.7

2.4

2.3

28

24

98

57

28

17

14

11

10

33

17

12

Mean

3 39

2 84

2.91

6.23

13.8

10.9

Sept.

10

14

9.2

7.0

7.O

7.0

6.6

8.0

7.3

6.6

6.6

6.3

6.0

4.9

4.6

4.9

4.9

5.3

7.0

5.3

4.6

4.6

4.4

4.2

4.4

4.6

4.4

4.0

3.8

Runoff in 

acre-feet

179

4,500

847 

365

7,850

Peak discharge.- Aug. 4 (2 p.m.) 297 see.-ft.; Aug. 20 (10 p.m.) 783 sec.-ft.5 Aug. 29 (9 p.m.) 

239 sec.-ft.

* Winter discharge measurement made on this day,

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 29 to Feb. 25 (stage-discharge relation affected by ice during 

most of period), Oct. 28, 29, Dec. 2-5, Mar. 8, Aug. 5-1O, 12-16; discharge computed on basis of 

weather records.
SAN JUAN RIVER BASIN 309

Florida River near Durango, Colo.

Location.- Water-stage recorder, lat. 37°20', long. 107M5', in sec. 4, T. 35 N., R. 8 

W., Just downstream from Red Creek and 9 miles northeast of Durango. latum 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 19iy, and October 1933 to September 1947 in reports of Geological Survey. 

May to July 1899, April 1901 to October 1903, September 1910 to Septemter 1924, and 

April 1927 to September 1947 in reports of State engineer. Station has been located 

at several different sites in this vicinity; all records equivalent.

Average discharge.- 29 years (1910-12, 1917-24, 1927-47), 120 second-feet.

Extremes.- Maximum discharge during year, 1,210 second-feet Aug. 22 {gage height, 3.85 

reet); minimum daily, 5.5 second-feet Jan. 17, 18.

1899, 1901-3, 1910-24, 1927-47: Maximum discharge observed, 4.640 second-feet 

June 28, 1927 (gage height, 4.50 feet, site and datum then in use); mirimum daily, 

0.4 second-foot Feb. 15, 1918.

Maximum flood known occurred Oct. 5, 1911.

Remarks.- Records good above 20 second-feet and fair below, 

lor irrigation.

Diversions atove station

Discharge, in second-feet, water year October 1946 to September 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.

14

40

58

47

53

48

55

50

52

48

38

41

39

34

35

33

32

32

29

29

28 28

26

25

22

23

23

28

56

47

36

Nov.

28

33

27

27

27

30

28

24

24

27

28

25

21

 18

20

21

28

28

30

24

17

16

17

20

15

28

28

21

21

22

-

Dec.

22

21

24

25

17

17

18

18

18

16

16

16

16

18

20

17

*17

14

12

12

12

12

10

14

12

10

12

10

9.0

8.0

7.0

Jan.

8.0

7.0

6.5

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

6.5

5.5

5.5

6.Q

*6.5

8.0

9.0

9.0

10

10

9.0

8.0

6.5

7.0

7.0

7.5

Feb.

8.0

8.0

9.0

9.0

10

11

11

10

9.0

8.0

7.0

7.0

7.5

8.0

9.0

10

 11

11

11

10

10

11

11

12

12

,12

J2

12

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April. ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

10

9.0

9.0

10

10

10

10

11

12

12

11 »12

13

11

11

12

15

17

17

19

22

25

21

17

16

20

23

25

25

25

27

Apr.

27

28

28

26

22

21

24

21

22

21

21

17

18

20

23

28

32

44

47

58

81

94

88

105

92

81

76

74

69

67

-

May

103

198

342

518

529

545

502

476

513

418

342

285

259

265

252

226

220

206

208

265

316

342

355

281

291

364

399

372

291

342

372

Second- u=»im., foot-days Maxi«n»

1,149 58

723 33

470.0 25

\20,154.4 645

226.5 10

276.5 12

1 437.0 27

1,375 105

10,397 545

9,697 616

2,295 180

4,263.7 935f

t X o

33,689.7 935

June

316

418

461

364

372

368

550

616

561

508

394

271

223

243

291

327

316

274

223

259

285

237

220

223

237

262

243

226

211

198

-

Minimum

14

15

7.0

3.0

5.5

7.0

9.0

17

103

198

12

8*1

33

5.5

July

180

162

149

147

135

135

167

147

12*

105

83

76

67

59

64

56

51

44

41

41

Zf

35

3*

30

27

22

19

18

17

14

12

Aug.

11

8.6

8.1

21

70

41

40

36

40

40

36

31

39

48

36

48

112

169

154

135

234

935

681

327

217

164

137

117

103

124

101

Mean

37.1

24.1

15.2

55.2

7.31

9.63

15.7

45.8

335

3£3

74. 0

138

77.7

92.3

Sept.

110

128

112

90

85

86

72

66

103

119

105

86

72

62

53

48

56

88

110

121

97

79

69

59

53

48

44

40

36

33

-

Runoff in 

acre feet

2,280

1,430

932

39,980

449

548

966

2,730

20,620

19,230

4,550

8,460

4,620

66,820

* Winter discharge measurement made on this day.

Note . - No gage-height record Dec. 9-15, Dec. 17 to Mar. 12 (stage -discharge relation affected by 

Ice during part of period) ; discharge computed on basis of 4 discharge measurements and weather 

records.
310 SAN JUAN RIVER BASIN

La Plata River at Hesperus, Colo.

Location.- Water-stage recorder, lat. 37°17', long. 108°02', in sec. 14, T. 35 N., R. 11 

W., 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 1906, August to December 1910, 

ana October 1933 to September 1947 in reports of Geological Survey. June to August 

1904, April to August 1906, August to December 1910, and May 1917 to September 1947 

in reports of State engineer.

Average discharge.- 30 years (1917-47), 47.4 second-feet.

Extremes.- Maximum discharge during year, 441 second-feet Aug. 22 (gage height, 1.97 

feet); from rating curve extended above 270 second-feet; minimum daily, 4.6 secondfeet Oct. 26.

1904, 1906, 1910, 1917-47: 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 above 15 second-feet and fair below. One diversion above station 

for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

8.0

16

18

16

18

17

16

15

15

15

11

8.6

8.6

8.6

9.8

9.8

9.8

9.2

8.6

7.7

7.7

7.7

7.1

7.1

6.2

4.6

6.2

8.0

11

9.2

8.0

Nov.

7.7

.4

.4

.4

.7

.4

.4

8.0

8.0

8.0

8.0

7.7

8.0

9.2

9.2

*8.6

8.0

8.0

8.0

7.7

7.7

7.4

7.4

7.4

6.8

6.8

6.8

6.8

6.8

6.8

-

Dec.

6.8

7.0

8.0

9.0

10

9.0

8.0

7.0

8.0

7.0

6.0

7.0

7.0

10

11

*11

8.0

8.0

7.O

8.0

8.0

8.0

9.0

10

9.0

9.0

7.0

6.0

6.0

6.0

6.0

Jan.

6.0

6.5

7.0

6.0

7.0

7.0

8.0

8.0

7.0

7.0

7.0

8.0

8.0

8.0

6.0

5.5

6.0

8.0

7.0

7.5

8.0

8.4

8.4

*8.4

9.0

9.0

9.0

10

8.0

7.0

6.0

Feb.

6.0

6.0

6.0

6.0

6.0

*6.4

6.4

6.0

6.0

5.5

5.0

6.0

8.0

*8.8

8.5

8.5

9.0

8.5

8.0

8.0

7.5

9.0

10

12

*13

13

14

13

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

May

September. .................................

Water year 1946-47 ......................

Mar.

12

3.0

9.0

10

10

10

10

10

10

10

10

10

9.0

9.0

9.0

9.5

*10

12

12

*14

15

22

25

23

24

26

29

35

37

38

38

Apr.

39

39

39

39

37

34

35

33

32

30

29

25

24

25

27

32

34

49

48

60

84

87

75

77

63

54

53

51

40

51

-

Secondfoot-day s

229.5

246.8

8,186.8

2 195

653

13,293.9

May

89

166

215

284

269

250

259

255

a240

194

147

120

111

124

127

114

103

a!20

127

151

173

177

173

133

140

169

181

154

111

111

127

Maximum

9.2

11

140

42

340

June

114

143

143

105

96

89

140

143

127

103

78

57

45

57

69

61

66

64

68

87

88

41

29

28

30

29

26

23

23

23

-

Minimum

4.6

6.8

6.0

4.0

5.0

24

13

4.6

Jvly

21

36

56

a 30

a48

52

61

58

50

43

39

35

31

26

22

20

17

15

14

18

16

17

15

14

14

13

12

12

11

10

9.2

Aug.

8.8

8.8

7.0

41

48

26

21

18

16

15

13

12

12

10

10

12

25

35

29

26

78

340

176

88

60

46

40

35

36

42

34

Mean

10.6

7.65

7.96

22.4

8.22

44.8

21.8

36.4

Sept.

42

39

36

33

30

29

26

26

26

26

24

21

18

16

14

13

18

23

21

25

21

18

16

14

13

13

13

13

13

13

-

Runoff in 

acre- feet

652

455

490

16,230

456

2,670

1,300

26,360

* Winter discharge measurement made on this day.

a No gage-height record) discharge computed on basis of records for stations on nearby streams. 

Mote.- No gage-height record Dec. 1 to Mar. 19 (stage-discharge relation affected by ice during 

most of period); discharge computed on basis of 6 discharge measurements and weather records.
SAM JUAN RIVER BASIN 

La Plata River at Colorado-Hew Mexico State Line

311

Location.- Water-stage recorder and masonry control, lat. 37°00', long. 108°11', in sec. 

 10, 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 mefn sea level,

datum of 1929.

Drainage area.- 331 square miles.

Records available.- October 1933 to September 1947 in reports of Oeological Survey. 

yeoruary lyaoto September 1947 in reports of Colorado State engineer.

Average discharge.- 27 years, 37.8 second-feet.

Extremes.- Maximum discharge during year, 1,430 second-feet Aug. 22 (gafe height, 5.65 

reet), from rating curve extended above 450 second-feet; no flow Apr. 27-29, June 24 

to July 2, July 15, 17-25.

1920-47: 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 12 second-feet and fair below. Diversions above station 

for Irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

a

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26'£t

28

29

30

31

Oct.

2.8

4.5

5.4

4.5

4.5

3.5

8.6

8.3

2.1

8.1

1.8

2.0

1.8

1.7

1.8

1.8

2.1

8.6

8.6

3.3

8.6

2.3

8.1

E.I

8^1

1.8

2.3

2.6

3.5

3.5

3.3

Nov.

3.1

3.5

4.0

4.0

3.8

3.8

4.3

6.4

8.7

8.3

7.8

5.9

4.0

4.0

4.5

4.5

4.0

3.8

3.5

3.5

13

14

12

9.8

7.8

6.4

6.4

5.4

5.9

5.9

-

Dec.

5.9

5.9

5.9

5.4

5.9

 6.8

8.3

5.9

5.9

5.4

b5.4

b5.4

b5.4

 6.2

6.0

5.4

5.9

b5.4

5.4

 6.0

7.0

b7.5

b7.0

b7.5

b8.0

b7.0

b7.0

6.0

b5.0

4.0

4.0

Jan.

b4.0

b4.5

3.5

3.0

4.0

4.0

5.0

5.0

5.0

4.5

5.0

5.5

6.0

5.0

 4.4

3.0

3.5

4.0

3.5

3.5

3.6

3.7

3.5

3.5

4.0

4.3

*4.3

5.0

4.3

4.0

4.3

Feb.

5.0

8.0

10

10

10

12

12

12

12

12

12

11

12

 11

10

11

13

12

12

12

9.8

9.8

9.8

11

10

12

13

14

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

May. .......................................

September ..................................

Water year 1946-47 ......................

Mar.

8.7

8.7

12

12

13

13

12

11

11

10

12

13

13

18

12

13

13

13

13

14

15

17

20

15

10

7.8

6.4

5.9

7.3

7.3

5.4

Apr.

4.3

3.8

3.8

9.2

3O

36

17

6.4

11

17

14

12

S.7

8.3

9.2

10

13

18

32

13

8.8

1.4

1.4

1.4

.6

.1

0

0

0

.1

Seoondfcot-days

187.8

4,784.7

13O 4

284 5

2 215

368 4

96.2

5,905.8

May

48

115

100

97

101

7O

81

81

112

118

115

85

63

47

55

53

46

55

61

71

58

58

71

75

58

67

77

71

45

30

31

Maximum

8.3

193

118

6.8

317

June

38

61

93

55

48

47

76

69

47

62

51

46

33

33

45

40

38

45

49

72

81

11

.2

0

0

0

O

0

0

0

Minimum

4.0

0

30

1.7

0

July

O

O

2.0

16

23

25

80

6?

V.

35

23

23

20

2.3

0

.1

0

O

0

O

0

0

0

0

0

1.4

1.5

1.5

1.4

1.4

.8

Aug.

O.8

l.O

1.1

2.0

10

4.3

4.0

3.8

7.3

12

4.0

3.5

4.0

3.8

3.3

6.4

11

7.8

7.3

8.3

26

317

63

14

5.9

3.8

2.6

2.1

3.3

4.5

4.5

Mean

6.06

13.1

3.21

16.2

Sept.

6.8

3.8

2.6

2.3

3.3

2.1

2.0

1.8

2.1

3.1

2.8

3.1

2.6

2.6

2.6

3.1

3.3

5.0

5.4

5.9

5.4

4.0

3.5

3.3

2.8

3.1

2.6

1.8

1.7

1.7

Runoff in 

acre-feet

372

9,500

OCQ

191

11,710

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 14, 15, 19-21, 28, 3O, 31, Jan. 3 to Feb. 8 (stage-discharge 

relation affected by ice during most of periods); discharge computed on basis of 4 discharge measurements and weather records. r 

852060 O - 49 - 21
312 SAN JUAN RIVER BASIN

La Plata River near Farmington, N. Mex.

Location.- Water-stage recorder, lat. 36°44'30", long. 108°14'45", in SW£ sec. 7, T. 29 

N., R. 13 W., 1,800 feet upstream from mouth and 2-J miles northwest of Farmington.

Records available.- March 1938 to September 1947.

Extremes.- Maximum discharge during year, 2,580 second-feet Aug. 22 (gage height, 5.20 

feet); no flow at times.

1938-47: 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 1946 to September 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.

0

0

0

0

0

0

0

0

1

1

1

1

0

1

4

2

2

2

1

1

1

1

1

2

2

2

3

3

3

3

-

Dec.

2

3

2

2

2

2

3

4

3

3

2

1

1

1

1

1

1

*1

2

2

3

b3

bi

b8

9

*9

19

bl5

b!2

*b8

b6

Jan.

aS

a6

a5

a4

a3

*b8

b7

b6

bS

b4

b6

b8

*blO

b8

a6

a4

a2

aS

a8

*alO

blO

blO

blO

blO

b!2

b!3

b!4

*b!5

blO

b8

blO

Feb.

b!2

blS

*b20

b20

b!8

blS

12

11

12

*16

15

12

6

5

4

4

*5

b3

b2

b2

b2

b2

bl

1

*1

1

1

2

_

-

Month

December. ..................................

Calendar year 1946 ......................

May. .......................................

September ..................................

Water year 1947 ......................

Mar.

1

2

2

1

1

1

1

1

1

0

0

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

1

1

1

1

1

1

11

1

1

1

0

0-

Secondfoot-days

135

1,381

32

2,522

May

0

0

1

0

0

0

0

0

46

130

118

49

28

13

a6

12

a6

a3

S3.

2

2

2

2

4

3

1

6

8

2

1

1

Maximum

19

40

6

722

June

0

0

0

11

1

11

1

0

0

0

0

0

1

0

0

0

1

1

6

10

4

2

1

1

1

1

0

0

-

Minimum

0

3

0

0

0

Jul-'

0

0

1

11

41

5

8

1

0

0

0

0

0

0

7

1

0

o

0

0

0

0

0

1

0

0

0

0

0

0

Aug.

0

0

0

c

1

0

0

1

1

0

0

0

0

1

0

224

31

13

5

3

48

722

185

20

10

6

4

3

2

1

0

Mean

1.3

4.4

3.8

2.2

1.1

6.9

Sept.

0

1

0

0

0

0

0

6

3

4

2

 1

1

1

1

1

1

1

1

2

4

1

1

0

0

0

0

0

0

0

Runoff in 

acre-feet

75

268

2,740

63

5,000

Peak discharge.- Nay 11 (12:30 a.m.) 758 sec.-ft.s July 6 (7:30 p.m.) 772 sec.-ft.! Aug. 16 (8 

p.ra.J 2,20O see.-ft.} Aug. 22 (5:30 p.m.) 2,580 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed from available trace, weather records, and discharge 

measurements.

b Stage-discharge relation affected by ice.
SAN JUAN RIVER BASIN 313

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 1947 in reports of Geological Survey. 

March 1928 to September 1947 in reports of State engineer.

Average discharge.- 19 years, 9.69 second-feet.

Extremes.- Maximum discharge during year, 98 second-feet May 13 (gage height, 3.10 feet); 

no flow July 1-6, 9-31, Aug. 1-4, 10-16.

1928-47: Maximum discharge, 1,480 second-feet Aug. 25, 1940 (gage heigttt, '5.90 

feet, site and datum then in use), from rating curve extended above 800 second-feet 

on basis of slope-area determination; no flow at times during 1931, 1933-36, 1938-41, 

1945-47.

Remarks.- Records poor. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1?47

Day

1

2

3

4

5

6

7

8

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

3.0

2.0

3.0

2.0

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

^ 4

1.4

1.4

1.4

1.4

1.7

2.6

2.2

2.6

Nov.

1.4

1.2

1.2

1.1

1.2

1.1

1.1

1.4

1.8

1.8

1.8

1.6

1.4

1.4

1.4

1.1

1.0

.8

.6

1.2

1.0

1.1

1.0

1.4

1.8

1.2

1.4

1.4

1.4

1.4

-

Dec.

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

2.0

2.0

2.2

1.8

2.2

2.0

1.8

1.6

1.6

1.3

1.1

1.0

l.u

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

Jan.

> 0.9

> .8

Feb.

^

' 0.8

.9

.9

1.0

.9

.9

_

-

-

Month

October. .................. ................

November. ........................ .........

December. ............. .................. .

Calendar year 1946 .................... .

January .................................. .

February ...................... ..........

March. ................................... .

April. ............................ ...... .

May............................... ...... .

June .........'................. ....... ....

July. ..................... ................

August .................... ................

September. .................................

Water year 1946-47 ......................

Mar.

0.9

.9

.9

1.3

.8

.6

.6

.7

.8

.7

.9

1.0

.9

4.0

4.0

6.4

5.4

6.4

7.6

8.0

8.0

8.9

9.2

6.6

4.8

4.0

4.6

5.6

7.2

9.2

9.2

Apr.

9.2

7.2

7.2

6.8

6.0

6.0

7.0

3.2

3.2

3.2

2.2

1.5

1.5

1.6

1.8

2.9

8.0

13

19

20

16

18

12

10

7.6

4.6

3.0

4.2

6.6

5.2

-

Secondfoot-days

50.9

38.7

44.4

611.0

26.3

23.8

130 . 1

217^7

700.5

39.5

10.6

84.9

38.5

1,405.9

May

13

13

17

20

22

13

15

22

18

31

45

54

65

41

34

28

22

22

20

18

19

20

18

18

16

15

13

13

14

12

9.5

Maximum

3.0

1.8

2.2

17

9.2

20

65

11

10

42

6.6

65

June

8.9

11

7.6

3.0

1.5

1.0

.6

.5

.5

.7

.4

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

Minimum

0.5

.6

1.0

0

.6

1.5

9.5

.1

0

0

.3

o

July

0

o

o

0

0

0

10

.6

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

8.0

3.0

1.0

.2

.1

O

0

o

0

0

o

0

.4

1.1

1.4

1,4

8.3

42

9.8

2.7

1.2

1.0

.8

.6

.5

.4

1.0

Mean

1.64

1.29

1.43

1.67

.85

.85

4.20

7.26

22.6

1.32

.34

2.74

i.;r

3.85

Sept.

0.8

.6

.8

.8

.6

.3

.3

.4

.6

2.0

1.4

1.1

.8

.8

.8

.6

.6

6.6

3.7

4.6

3.7

1.6

1.0

.7

.7

1.0

.5

.4

.4

.3

Runoff in 

acre- feet

101

77

88

1,210

52

47

258

432

1,390

78

21

168

76

2,790

Note.- No gage-height record Oct. 1-24, Nov. 8-14, 28-30, Dec. 1-5, Dec. 19 to Feb. 24, 

Aug. 5-7; discharge computed on basis of weather records and records for La Plat L River it 

New Me::lco State line.
314 SAN JUAN RIVER BASIN

West Mancos River near Mancos, Colo.

Location.- Water-stage recorder, lat. 37°22'30", long. 108°15'20", in sec. 14. T. 36 N., 

R. 13 W., lj miles upstream from confluence with 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 1947 (no 

winter records 1943-47) .

Extremes.- Maximum discharge during year, 266 second-feet May 9 (gage height, 2,07 feet); 

minimum daily determined, 6.5 second-feet Nov. 15-16, but may have been less during 

period of no record.

1910-11, 1938-47: Maximum discharge, 1,080 second-feet May 13, 1941 (gage height, 

3.89 feet), from rating curve extended above 260 second-feet; minimuir daily recorded, 

2.5 second-feet Aug. 20, 1939, but may have been less during period cf ice effect.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Pio diversion above station.

Discharge, in second-feet, water year October 1946 to September 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.

e.e

18

23

18

16

14

15

13

12

11

8.2

3.1

8.8

8.5

9.1

8.8

8.5

8.0

7.9

8.2

8.2

8.2

7.9

7.6

7.9

7.9

7.9

8.8

18

16

12

Nov.

8.8

9.7

9.4

8.2

8.5

9.4

9.7

9.4

9.0

9.0

9.0

7.5

8.2

b7.3

b6.5

b6.5

b7.0

b7.9

 8.7

8.0

.5

.5

.5

.5

.0

.0

.0

.O

.0

.0

-

Dec. Jan. Feb.

Month

October. ........................ ..........

November ......................... .........

December ...................................

Calendar year ......................

January. ................................. .

February ...................................

March. ............... .....................

April..... .................................

May........................................

June ................. ... ... ............

July. ............. ........................

August ............... .....................

September. ........... ....... ..........

Water year ... . . ......... ....

Mar.

11

9.0

9.0

10

10

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.0

9.0

9.0

9.0

 9.4

9.7

11

13

15

16

13

12

14

13

14

16

16

17

19

Apr.

20

23

24

21

19

18

17

17

18

18

18

16

16

19

30

42

51

58

54

74

95

97

89

90

68

72

86

87

74

84

-

Secondfoot-days

344.3

239.7

_

358.9

1,415

4,493

2,500

835.1

910.4

497.6

-

May

120

152

168

200

203

182

180

180

206

233

187

170

177

194

180

147

127

116

106

107

111

116

118

102

100

102

118

116

94

87

94

Maximum

23

9.7

_

19

97

233

133

60

157

33

-

June

89

107

107

99

102

100

123

133

129

120

102

82

70

72

78

82

82

67

64

76

81

66

57

54

60

66

62

60

57

53

Minimum

7.

6.

_

9.

16

87

53

9.

8.8.'

-

July

49

47

44

43

3S

47

60

43

43

31

31

23

3T

27

27

2<

21

18

18

16

16

17

16

14

13

13

12

12

11

n

9.1

Aug.

9.4

8.8

8.2

24

35

18

14

14

14

16

16

14

12

13

12

13

20

28

29

25

44

157

94

58

42

34

29

27

25

32

25

Mean

; 11.1

5 7.99

_

3 11.6

47.2

145

83.3

L 26.9

2 29.4

I 16.6

-

Sept.

33

28

23

20

21

20

18

16

20

26

22

18

16

14

12

12

12

17

20

22

16

14

12

11

10

9.7

9.4

8.8

8.5

8.2

Runoff in 

acre-feet

683

475

_

712

2,810

8,910

4,960

1,660

1,810

987

-

* Winter disch ir^e Measurement made on this day.

b Stake-discharge relation affected by ice.

Note.- No jige-heiuht record Oct. 18, 19, Nov. 9-13, 19-30, Mar. 1-16 (st.iise-discharge relation 

affected by Lee during part of period); discharge computed on basis of 1 discharge measurement and 

weather records.
SAN JUAN RIVER BASIN ' 315 

Middle Mancos River near Mancos, Colo.

Location.- Water-stage recorder, lat. 37°22'15", long. 108°13'35", in SE^ sec. 13, T. 36 

N., R. 13 W., 1,300 feet upstream from East Mancos River and 4 miles northeast of 

Mancos.

Drainage area.- 13.7 square miles.

Records available.- March 1938 to May 1941, October 1941 to September 1947 (no winter 

records 1939, 1941, 1943, 1945, 1946, 1947).

Extremes.- Maximum discharge during .year, 75 second-feet May 13 (gage height, 1.59 feet); 

minimum daily determined, 0.3 second-foot Oct. 1, but may have been less during period 

of no record.

1933-47: Maximum discharge, 297 second-feet May 15, 1944 (gage height, 2.38 feet), 

from rating curve extended above 78 second-feet; 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 1?47

Day

1

2

3

4

5

6

7

8

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

.4

.4

.5

.5

.4

.6

1.0

1.0

.8

.6

.6

.6

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

*.4

. 4

.4

.5

1.2

1.1

.5

Nov.

0.4

.4

.4

.4

.5

.4

.4

.4

.9

.8

b.6

b.8

.9

.9

.9

.9

1.0

1.3

*1.4

1.5

1.5

1.6

1.6

1.4

1.1

1.3

1.5

1.6

1.6

1.6

-

Dec. Jan. Feb.

Month

October ....................................

November. ........................ .........

December. ..................................

Calendar year ......................

January .................................. .

February. ..............................

March. .......................... ..........

April. .......... .......................

May............. ................. ......

June ............ .................. .......

July. .................................. ...

August .......... ... ......... ...........

September ........................... ......

Hater year ... .................

Mar.

t2.2

Apr.

3.3

3.6

2.9

3.0

3.0

4.0

4.0

3.6

3.6

*3.8

3.8

3.4

3.6

4.8

7.4

8.1

7.4

8.4

7.4

11

16

18

16

16

12

12

14

14

12

13

-

May

22

31

35

39

38

33

31

29

36

57

46

52

53

58

57

50

42

40

31

29

26

23

22

19

16

16

16

16

12

11

10

Second- u=»<m,,», foot-days "ax1"" 

17.0 1.2

30.0 1.6

-

_

_

243.1 18

996 58

124.4 9.7

51.6 4.3

67.2 10

51.2 3.3

-

June

9.7

8.7

7.8

6.8

6.3

6.0

6.6

6.6

6.6

6.3

6.0

5.3

4.1

4.0

3.1

2.6

2.1

1.7

1.4

1.8

2.2

2.3

2.2

1.8

1.4

1.1

1.8

2.9

2.6

2.6

Minimum

o.;

.4

-

.

_

_

2.S

10i.:

.4

.4

.7

-

July

2.3

2.1

1.8

1.8

l.S

2.1

3.6

4.3

3.4

3.1

2.8

2.2

2.0

2.2

2.0

2.0

1.7

1.4

1.3

1.0

.9

j 1 1

- ill

.6

.7

.4

.4

.5

.4

.4

.4

Aug.

0.4

.4

.4

1.2

3.0

1.5

1.2

1.2

1.3

1.4

1.4

1.2

1.0

1.0

.9

1.1

1.2

1.4

1.4

1.3

2.8

10

7.8

4.8

3.4

2.9

2.5

2.3

2.2

2.6

2.0

Sept.

2 2

2^8 z'.S

2.8

2.1

2.0

2.0

2.1

2.6

3.3

2.5

2.0

1.7

1.6

1.2

1.2

1.1

1.6

2.1

2.2

1.6

1.3

1.1

1.0

.9

.9

.7

.7

.7

.7

 Runoff in M<san acre- feet

0.55 34

l.OO 60

-

-

_

_

_

8 . 1O 482

32.1 1,980

4.15 247

1.66 102

2.17 133

1.71 102

-

* Winter discharge measurement made on this day.

f Result of discharge measurement.

b Stage-discharge relation affected by ice. 

NJ J.:O.- No gage-height record Oct. 18. 19, Nov. 5, 16-30, Apr. 1, 4-7 (stage-discharge relation

affected by ice during part of periods), May 5, Aug. 4-11; discharge computed on bisis of 2 discharge measurements, weather records, and records for West Mancos River near Mancoi.
316 SAN JUAN RIVER BASIN

East Mancos River near Mancos, Colo.

Location.- Water-stage recorder, lat. 37°22'10", long. 108°13'35", in NE£ sec. 24, T. 36 

N., R. 13 W., 8.00 feet upstream from mouth and 4 miles northeast of Mancos.

Drainage area.- 11.1 square miles.

Records available.- March 1938 to September 1^47 (no winter records 1938-41, 1943-47).

Extremes.- Maximum discharge during year, 70 second-feet May 5 (gage height, 1.08 feet); 

minimum daily recorded, 1.2 second-feet July 27, Aug. 1, 2, but may have been less 

during period of no record.

1938-47: 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 1946 to September 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.

1.8

3.5

5.5

4.7

4.7

4.1

3.8

3.2

3.2

2.6

1.8

2.0

2.0

1.9

1.9

1.8

1.7

al.6

al.5

1.5

1.5

1.5

1.5

1.4

*1.4

1.4

al.4

al.S

4.7

3.5

2.3

Nov.

1.8

1.8

1.8

al.S

al.9

2.3

2.9

b2.6

b2.6

b2.6

b2.6

b2.3

2.3

b2.3

b2.3

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

2.3

2.3

-

Dec. Jan. Feb.

Month

October. ................................. .

November. ........................ ....... .

December . ..................................

Calendar year ..... .............. .

January .................................. .

February ...................................

March. ..................... ............. .

April. . ............................. .....

Mav may ........................................

June. ................. ....... ...... .....

July. . . .................. .......... ....

August ............................ ...... .

September. .................................

Water year ......... ...... .....

Mar.

4.0

3.0

3.0

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.0

3.0

3.0

3.0

*3.5

3.8

4.1

5.5

7.5

9.0

7.5

6.5

6.0

5.0

5.0

6.5

7.0

7.5

7.5

Apr.

7.5

9.5

10

8.5

8.0

7.5

7.5

6.5

6.5

7.0

6.5

5.5

5.5

7.0

9.5

14

17

22

19

22

24

25

25

28

22

19

19

20

18

18

Second 

foot-days

76.9

68.4

.

145.4

424.5

1,451

363.7

124.3

198.3

100.5

-

May

35

52

54

59

a62

66

68

64

64

64

55

46

44

50

57

49

43

40

39

43

43

a42

a41

a40

a40

a39

39

36

29

24

24

Maximum

5.5

2.9

.

9.0

28

68

26

7.0

35

6.5

-

June

23

26

25

20

18

16

19

22

21

18

15

12

9.5

8.0

8.0

9.0

9.0

7.5

6.5

6.5

6.5

6.5

5.5

4.7

5.0

7.0

7.0

7.5

7.5

7.5

Minimum

1.4

1.8

-

_

3.0

5.5

24

4.7

1.2

1.2

1.5

-

Jul-r

7.0

7.0

7.0

6.5

6.5

6.5

7.0

7.0

7.0

6.5

6.0

5.5

4.4

4.1

4.4

4.1

3.8

3.2

2.3

1.9

1.9

1.8

1.6

1.6

1.5

1.4

1.2

1.4

1.4

1.4

1.4

Aug.

1.2

1.2

1.4

3.8

10

4.7

3.2

2.3

2.6

3.2

2.9

2.6

2.0

1.9

1.7

1.9

3.2

6.0

5.5

5.0

7.0

35

30

1610-

7.5

5.5

5.0

5.0

6.0

5.0

Mean

2.48

2.28

.

_

4.69

14.2

46.8

12.1

4.01

6.40

3.35

-

Sept.

6.0

6.5

6.0

4.7

4.1

4.1

3.5

3.8

4.1

5.5

4.1

3.8

3.5

2.9

2.6

2.0

2.0

3.2

3.2

3.8

3.8

2.9

2.3

2.3

1.8

1.7

1.7

1.5

1.6

1.5

Runoff in 

ac re feet

153

136

-

_

288

842

2,880

721

247

393

199

-

* Winter discharge measurement made on this day.

d Ho gage-height reoordj discharge computed on basis of records for stations on nearby streims. 

b Stage-discharge relation affected by ice.

Note.- Ho gage-height record Hov. 13, 16-30, Mar. 1-17 (stage-dischirge relatior affected by ice 

uring moat of period); discharge computed on basis of 2 discharge meiaurementa ard weather records.
PARIA RIVER BASIN 317

Paria River at Lees Ferry, Ariz.

Location.- Water-stage recorder, lat. 36°52'15", long. 111°36'30", in MM^NE^ sec. 13, T. 

4U N., R. 7 E. , half a mile upstream from mouth and 1 mile northwest of Lees Ferry. 

Datum of gage is 3,123.4 feet above mean sea level, datum of 1929.

Drainage area.- 1,570 square miles.

Records available.- October 1923 to September 1947. Records of monthly discharge prior 

to uctoDer 193H have been republished in Water-Supply Paper 1049.

Average discharge.- 24 years, 34.2 second-feet.

Extremes.- Maximum discharge during year, 7,650 second-feet Aug. 22 (gag's height, 11.77 

1'eet), from rating curve extended above 500 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, 2.9 second-feet July 31, Aug. 1.

1923-47: Maximum discharge, 16,100 second-feet Oct. 5, 1925 (gage height, 17.5 

feet), by float-area method; no flow during periods In winters of several years prior 

to 1928.

Remarks.- Records good except those for periods of ice effect, fragmentary gage-height 

record, and those above 500 second-feet, which are poop. Diversions above station for 

irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

49

43

18

17

20

223

95

57

35

26

22

21

23

20

22

23

21

19

18

15

14

14

14

14

14

13

12

12

366

363

60

Nov.

32

28

21

15

25

22

21

28

43

33

20

25

23

32

76

45

27

25

25

25

25

34

31

34

59

34

27

27

28

28

-

Dec.

26

26

26

24

24

25

48

50

34

25

19

20

22

20

20

21

20

17

16

14

16

19

22

24

24

24

31

34

29

*13

b8

Jan.

b8

b9

b4

b4

b6

b!2

b!3

b!4

*b!4

b!4

b!4

bis

19

25

blS

bll

bll

b!2

blE

*bll

b!4

b!4

b!4

b!8

23

27

29

28

28

16

*15

Feb.

16

16

21

24

28

28

33

27

26

29

33

31

26

24

23

23

22

23

20

19

18

18

17

17

17

16

16

17

_

_

-

Month

December. .......................... .......

Calendar year 1946 ......................

Mav

September. .................................

Water year 1946-47 ......................

Peak discharge.- Aug. 22 (4:30 a.m.) 7.650

Mar.

20

19

IS

18

17

18

18

18

17

18

16

17

16

15

14

14

15

15

15

14

14 -

14

13

13

14

10

8.9

8.4

7.6

7.2

6.7

Apr.

7.6

 8.4

7.6

7.6

7.S

7.2

7.6

7.6

7.2

7.2

7.3

6.7

6.3

5.9

5.4

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.4

5.4

5,4

5.4

5.9

6.3

6.3

7.2

-

Secondfoot-days

741

11,303.7

275.3

11,714.7

May

7.2

6.7

6.3

5.9

5.4

5.4

5.4

5.4

5.4

5.9

6.3

6.7

17

18

16

13

11

8.9

7.6

6.3

5.9

5.0

4.5

.2

.0

.2

.0

.7

.0

 .O

3.7

Maximum

50

788

29

3 040

27

3,040

June

3.4

3.7

4.2

4.5

4.0

4.0

4.0

4.0

3.7

3.4

3.7

4.0

4.0

4.0

4.E

4.0

3.7

3.4

4.0

3.7

4.7

5.4

6.7

6.3

5.0

4.2

3.7

3.7

3.4

3.4

-

Minimum

12

8

2.3

6.7

4.4

2.9

July

4.0

4.0

4.0

4.0

4.0

4.E

4.7

5.0

4.2

4.0

3.4

4.0

3.4

3.4

3.7

4.0

3.7

4.5

4-2

3.7

3-4

4.0

18

21

8-0

5-4

4.5

3.4

3.2

3.2

3.2

Aug.

2.9

3.2

3.2

3.4

138

38

26

28

48

100

f32

34

31

26

18

18

205

292

52

57

703

3,040

150

41

24

18

14

457

172

65

26

Mean

23.9

31.0

9.18

32.1

Sept.

18

20

16

13

11

23

27

13

7.6

5.7

4.8

4.8

5.1

5.1

6.8

8.7

7.6

5.7

7.2

9.1

9.6

7.6

6.8

5.1

4.6

4.6

4.6

4.4

4.4

4.4

-

Runoff in 

acre- feet

1,470

22,420

890

430

546

23,230

sec. -ft.; Aug. 28 (3 a.m.) 1,620 sec. -ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by lee.

f Fragmentary gage-height record; discharge computed from partly estimated gage-height record.
318 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^SEir sec. 27, T. 11 N., 

K. 28 E., 1 mile downstream from Coyote Creek, 4| miles upstream from Lyman Dam, and 

13 miles south of St. Johns.

Drainage area.- 747 square miles.

Records available.- April 1940 to September 1947 (discontinued).

Extremes.- Maximum discharge'during year, 1,620 second-feet Aug. 22 (gage height, 9.98 

reet); minimum daily recorded, 0.6 second-foot July 14.

1940-47: Maximum discharge, 16,000 second-feet July 26, 1940 (gage height, 17.1 

feet, from floodmarks) by slope-area method; minimum daily, 0.1 second-foot (regulated) 

July 1-6, 1946.

Remarks.- Records fair except those for periods of ice effect oY fragmentary or no gageneignt record, which are poor. Flow regulated by many small reservoirs having a 

combined capacity of about 15,500 acre-feet. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

7!

4

5

6

7

R

9

10

11

12

13

14

15

16

17

1R

19

20

?1

22

?3

24

25

?6

27

28

29

30

31

Oct.

76

73

69

64

62

-58

54

51

48

46

41

31

28

27

25

23

20

19

18

16

17

18

16

14

15

14

13

13

12

19

21

Nov.

17

15

12

11

11

10

11

11

10

10

9

9

9

8

9

11

11

20

1"

-

Dec.

> 15

*b!7

blS

b!7

15

b!5

b!3

b!2

blZ

b!2

b!3

b!2

b!2

12

12

11

11

12

b!2

b!2

b!2

Jap.

bll

bll

bio

bio

blO

b9

b9

b9

b9

b9

blO

blO

blO

blO

*9

b8

Ib8

b9

b9

blO

blO

b9

b9

b9

b9

b9

blO

10

blO

b9

blO

Feb.

bll

bio

bll

11

10

11

13

10

10

10

11

101111

*10

11

12

15

14

13

11

10

9

9

9

8

8

8

~

_

-

Month

December. ...................................

Calendar year 1946 ......................

April .............................:........

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

8

8

7

6

5

5

5

5

4

4

4

4

4

4

4

4

4

5

6

5

4

7

11

10

7

4

3

3

3

3

2

Apr.

3

2

2

3

3

3

2

2

2

2

2

2

2

2

2

2

~

2

2

2

2

2

2

2

2

2

2

2

2

2

-

Secondfoot-days

360

427

9,421.2

64

100

112

232

4,192.3

May

2

2

2

2

2

2

2

2

3

4

3

3

3

3

4

3

2

2

2

4

5

5

5

4

4

4

4

5

4

4

4

Maximum

20

18

748

5

60

144

June

5

5

4

5

5

5

5

5

5

5

5

4

3

2

-

Minimum

11

.1

1

_

July

I'

5

15

6

1

.8

.8

.7

.6

.9

2

1

1

.8

.8

.8

95

5

2

2

1

1

1

1

.9

.8

Aug.

0.8

.8

.8

1

17

36

5

25^

10) 1447

10

9

9

8

9

13-

69 104'

fll

f9

fa

101^

96

f!4

fll

83

48

12

37

47

27

5'«an

12.0

13.8

25.8

10.6

2.1

3.2

3.7

7.7

11.5

Sept.

20

12

7

5

4

5

5

5

4

4

3

3

2

2

2

1

2

30

60

15

10

7

5

4

4

3

3

2

2

1

-

Runoff in 

acre-feet

714

847

18,690

198

460

8,320

Peak discharge.- Aug. 10 (3:30 a. to.) 900 sec. -ft.; Aug. 22 (11:30 p.m.) 1,620 sec. -ft.; July 22

(5 p.m.J 1,460 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.

Hpte.- No gage-height record Nov. 17 to Dec. 11, June 10 to July 8, Sept. 13-30; discharge computed 

on Basis of weather records, and records for Lyman Reservoir and stations in adjoining basins.
LITTLE COLORADO RIVER BASIN 319

Lyman Reservoir near St. Johns, Ariz.

Location.- Water-stage recorder, lat. 34°22', long. 109°23< , in NE£ sec. 9, T. 11 N., 

R~!28 E. , in control tower of Lyman Dam on Little Colorado River, 9 1/3 miles south 

of St. Johns.

Drainage area.- 790 square miles.

Records available.- May 1940 to September 1947 (discontinued).

Extremes.- Maximum contents during year, 13,600 acre-feet Feb. 87 (gage height, 42.18 

feet); minimum, 5,500 acre-feet (estimated) Sept. 30.

1940-47: 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, 191fa. Capacity, 21,900 

acre-feet between gage heights 20.0 feet (bottom of Lyman Canal) and 50.0 feet 

(average elevation of permanent spillway crest). Capacity, 28,500 acre-feet between 

gage heights 20.0 and 55 feet (top of wooden dam on spillway). 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 b-Jt 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 1946 to Septemter 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.

10,800

10,900

11,000

11,100

11,200

11,300

11,300

11,400

11,500

11,500

11,600

11,600

11,600

11,600

11,600

11,700

11,700

11,700

11,800

11,800

11,800

11,800

11,800

11,800

11,800

11,800

11,800

11,800

11,800

11,900

11,900

Nov.

11,900

12,000

12,000

12,000

12,000

12,000

12,000

12,000

12,000

12,000

12,100

12,100

12,100

12,100

12,100

12,100

12,100

12,100

12,200

12,200

12,200

12,200

12,200

12,200

12,300

12,300

12,300

12,300

12,300

12,400

-

Dec.

12,400

12,400

12,400

12,400

12,500

12,500

12,500

12,500

12,600

12,600

12,600

12,600

12,600

12,700

12,700

12,700

12, 700

12,700

12,700

12,700

12,700

12,800

12,800

12,800

12,800

12,800

12,800

12,800

12,800

12,800

12,900

Jan.

12,900

12,900

12,900

12,900

12,900

12,900

12,900

13,000

13,000

13,000

13,000

13,000

13,000

13,000

13,000

13,000

13,000

13, 100

13,100

13,100

13,100

13,100

13,100

13,200

13,200

13,200

13,200

13,200

13,200

13,200

13,200

Feb.

13,200

13,300

13,300

13,300

13,300

13,300

13,300

13,300

13,400

13,400

13,400

13,400

13,400

13,400

13,400

13,400

13,400

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,600

13,500

_

_

-

Hair.

13,500

13,500

13,500

13,500

13,500

13,500

13, 500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,500

13,400

13,400

Apr.

13,400

13,400

13,400

13,400

13,400

13,400

13,400

13,400

13,400

13,300

13,300

13,300

13,300

13,300

13,300

13,300

13,300

13,200

13,200

13,100

13,000

13,000

13,000

12,900

12,900

12,800

12,700

12,700

12,600

12,600

Hay

12,500

12,500

12,500

12,400

12,400

12,300

12,300

12,200

12,200

12,100

12,100

12,100

12,000

12,000

11,900

11,900

11,800

11,800

11,800

11,600

11,600

11,500

11,400

11,300

11,300

11,200

11,000

11,000

10,900

10,800

10,700

June

10, 700

10,600

10,500

10, 400

10,400

10,300

10,200

10,100

10,000

9,990

9,920

9,840

9,750

9,670

9,590

9,510

9,470

9,440

9,440

9,370

9,310

9,270

9,230

9,190

9,110

9,010

8,940

8,840

8,760

8,660

July

8,580

8,460

8,370

8,270

8,200

8,120

8,090

8,140

8,120

8,070

,990

,900

,780

,620

,490

,400

,310

,220

,120

,030

,940

,050

6,970

6,910

6,840

6,760

6,680

6,610

6,530

6,450

6,350

Aug.

6,270

6,160

6,060

6,060

6,090

6,140

6,100

6,100

6,110

6,500

6,490

6,460

6,460

6,470

6,470

6,440

6,540

6,750

6,710

6,680

6,610

6,720

6,940

6,920

6,880

7,030

7,080

7,090

7,100

7,170

7,220

Sept.

7,280

7,320

7,310

7,260

7,200

7,130

7,060

6,980

6,880

6,780

6,680

_

_

.

-

_

,

_

-

_

_

_

-

_

_

_

_

-

Monthly gage height and contents, water year October 1946 to September 1947

Date

Dec . 31 ....................

Calendar year 1946

Sept. 30... ..........'.......

Water year 1946-47 .......

Gage height 

(feet)t

38.90 

40.34 

40.83 

41.38

-

41.80 

42.17 

42.06 

41.08 

38.93 

36.33 

33.14 

34.39

-

Contents 

(acre-feet)

10,700 

11,900 

12,400 

12,900

-

13,200 

13,500 

13,400 

12,600 

10,700 

8,660 

6,350 

7,220 

a5,500

-

Change In contents 

during month 

(acre-feet)

+1,200 

+500 

+500

+10,200

+300 

+300 

-100 

-800 

-1,900 

-2,040 

-2,310 

+870 

-1,720

-5,200

t Cage height at 12 p.m. 

a Estimated.
320 LITTLE COLORADO RIVER BASIN

Little Colorado River below Lyman Reservoir, near St. Johas, Ariz.

Location.- Water-stage recorder and concrete control, lat. 34°22', long. 109 0 23', in 

NE£ sec. 9, T. 11 N., R. 28 E., 65 feet downstream from outlet tunnel in Lyman Dam 

and 9 1/3 miles south of St. Johns, used to determine water released to river_channel. 

Water-stage recorder on Lyman Reservoir, 300 feet upstream in control tower on Lyman 

Dam, used to determine water spilled three-eighths of a mile north at spillway in 

SW£ sec. 4, T. 11 N., R. 28 E.

Drainage area.- 790 square miles.

Records available.- April 1941 to September 1947 (discontinued).

Extremes (regulated).- Maximum daily discharge recorded during year, 6.7 second-feet

July 31 to Aug. 2, Aug. 5; minimum daily recorded, 0.5 second-foot on many days during 

February and March.

1941-47: Maximum discharge observed, 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 except those below I second-foot, which are fair, and those after 

Sept. 12, which are poor. Record shows all water spilled and released from Lyman 

Reservoir to river channel, but does not include flow diverted to Lynan Canal which 

was measured In second-feet as follows:

May 3......14.1

May 19......19.1

May 26......37.1

June 9......30.0

July 9......21.3

July 24......25.8

Aug. 6......21.1

Aug. 28. .... .22.1

Sept.12...... 36.8

No flow over Lyman Dam spillway this year. Since 1929, spill has occurred only during 

period Apr. 8 to about May 6, 1932, and Apr. 30 to May 13, 1941. Flow completely regulated by many reservoirs (combined capacity, 48,500 acre-feet), the largest of which 

is Lyman Reservoir (capacity, 33,000 acre-fe.et, see preceding page).

Discharge, in second-feet, water year October 1946 to September 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.

4.2

4.2

4.2

4.2

4.2

4.2

4.2

3.9

3.9

3.9

3.9

3.9

3.4

3.0

2.8

2.2

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

Nov.

2.0

2.0

2.0

2.2

2.0

2.0

2.0

2.0

2.0

1.8

1.8

1.8

1.7

1.4

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

1.1

1.1

1.1

-

Dec.

1.1

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

Jan.

0.6

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.7

.7

7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

Feb.

0.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

_

_

-

Month

October. ...................................

November. ..................................

December ....................................

Calendar year 1946 ......................

January. ................................. .

February

March. .....................................

April. .....................................

May. .......................................

June ......................... . . ..........

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

0.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

Apr.

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

1.0

1.4

1.4

1.3

1.3

1.3

1.3

1.3

Secondfoot-days

90.9

45.7

20.5

710.4

21.1

17.1

18.4

23.9

59.8

88.1

120.0

92.4

134.5

732.4

May

1.3

1.2,

1.8

1.8

1.2

1.2

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.4

1.4

1.4

1.6

1.6

1.6

2.4

3.0

3.0

3.0

2.8

2.8

2.8

2.8

2.8

3.0

3.0

3.0

Maximum

4.2

2.0

1.1

6.4

.7

.7

.6

1.4

3.0

3.9

6.7

6.7

-

June

3.0

3.0

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.8

2.8

2.6

2.6

2.6

2.6

2.6

3.6

3.9

3.9

3.9

3.9

3.9

Minimum

2.C

1.]

.£1 1

^ i

1.2

2.6

2.6

1.6

-

July

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.7

3.7

3.7

3.7

3.7

3.7

3.9

3.9

3.9

3.9

3.9

3.9

4.2

4.2

4.5

3.6

2.8

2.8

3.0

3.2

3.4

4.8

6.7

Aug.

6.7

6.7

6.4

6.4

6.7

4.2

2.4

2.0

2.2

2.2

1.6

1.8

1.8

1.8

2.7

3.2

3.2

3.2

3.0

1.8

1.7

1.7

1.8

1.8

1.8

2.0

2.2

2.2

2.6

2.4

2.2

Mean

2.93

1.52

.66

1.95

.68

.61

.59

.80

1.93

2.94

3.87

2.98

4.48

2.01

Sept.

2.2

2.2

2.2

2.2

2.4

3.9

5.1

4.8

4.8

4.8

5.1

5

Runoff in 

acre- feet

180

91

41

1,410

42

34

36

47

119

175

238

183

267

1,450

Note.- No gage-height record Sept. 13-30; discharge estimated on basis of discharge measurement of 

Sept. 12.
LITTLE COLORADO RIVER BASIN 

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

321

Drainage area.- 3,680 square miles (including 830 square miles in closed bssin surrounding yuemado, N. Mex.).

Records available.- March 1940 to September 1947.

Extremes.- Maximum discharge during year, 301 second-feet Aug. 4 (gage height, 2.86 feet); 

no flow on several days.

1940-47: Maximum discharge, 1,100 second-feet Aug. 13, 1945 (gage height, 4.13 

feet); no flow during periods in each year except in 1941, 1946.

Remarks.- Records good except those for periods of ice effect, which are pcor. Diversions above station for irrigation. Considerable regulation by many reservoirs 

(combined capacity, 52,000 acre-feet), the largest of which is Lyman Reservoir 

(see p. 319).

Discharge, in second-feet, water year October 1946 to September 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.

16 

14 

10 

9.3 

8.3

7.7 

6.2 

6.7 

5.7 

5.3

5.3 

5.3 

4.9 

4.5 

4.5

4.9 

4.9

5.7 

5.7

5.7 

5.7 

B.7 

5.3 

4.9

4.9 

4.9 

4.9 

5.3 

4.9 

4.9

Nov.

5.3 

6.2 

6.2 

7.2 

9.3

9.3 

9.3 

9.9 

8.8 

8.3

8.3 

8.8 

8.3 

7.7 

7.7

8.3

8.3

7.7 

7.2

6.7 

6.7 

6.7 

6.7 

6.2

6.7 

6.2 

6.7 

6.7 

6.7

Dec.

6.7 

6.7 

6.7 

6.Z 

6.7

6.7 

6.Z 

5.7 

6.2 

6.Z

*6.7 

6.2 

6.7 

6.7 

6.7

7.2 

7.2

6.7 

6.7

7.2 

7.7 

7.2 

7.2 

7.2

7.7 

7.7 

7.2 

5.3 

5.3 

b6.7

Jan.

6.2 

6.7 

6.7 

6.7 

6.2

6.2 

6.2 

6.2 

6.2 

6.7

8.3 

9.9 

8.8 

8.3 

*7.2

6.2 

4.9

6.7 

7.2

9.3 

10 

blO 

blO 

bll

b9.3 

9.3 

7.2 

b6. 7 

6.2 

b6.7

Feb.

b7.7 

b8.3 

8.8 

8.8 

8.8

8.8 

8.3 

5.7 

3.8 

2.6

2.0 

1.8 

1.8 

1.6 

1.6

1.2 

1.1

*.8 

1.0

1.0 

1.0 

1.0 

1.1 

1.2

1.2 

1.1 

1.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ..... .............................

rnber ..... .............................

lendar year 1946 

ary

h. .....................................

ter year 1946-47 ......... ....

 Mar.

1.2 

1.1 

1.1 

1.1 

1.2

1.2 

1.2 

1.4 

1.6 

1.4

3 .4 

3.4 

3.4 

3.4 

2.8

1.6 

1.0

1.0 

1.0

.6 

.6 

.5 

.5 

.5

.4 

.4 

.6 

.6 

.6 

.5

Apr.

0.6 

.6 

.6 

.7 

.7

.7 

.7 

.6 

.6 

.5

.5 

.5 

.5 

.6 

.6

.7 

.7

.7

.4 

.4

.5 

.4 

.2 

.1

0

o

0 

0 

0 

.2

May

0.4 

.5 

.4 

O 

.4

.2 

O 

.2 

.7

.6

.3 

.4 

.2 

.2 

.1

.2 

.2

.2

.4

.1

0 

0 

.1

.2 

.2 

.2

.3 

.3 

.2

June

0.2 

.2

.2 

.2

.2

.2

.2 

.4 

.1 

.1

.1 

.2

'.Z 

.2

.2 

.3

.4 

.2

.2 

.1 

.2 

.2 

.2

.1 

.1 

.2

O

0

forays Maximum Minimum

196.9 16 4.5 

225.8 9.9 5.3 

208.4 7.7 5.3

4,106.3 174 .2

234.4 11 4.9 

94.3 8.8 .8 

40.3 3.4 .4 

13.3 .7 0 

7.8 .7 0 

5.7 .4 0 

7.3 .5 0 

1,018.9 174 .1 

353.9 67 .5

2,407.0 174 0

July

0 

O

.1

.2 

.2

.2

.3 

.5 

.4 

.3

.2 

.2 

.2 

.2 

.3

.5 

.4

.3 

.2

.3 

.4 

.4 

.2 

.2

.1 

.1 

.1 

.2 

.1 

.1

Aug.

0.2 

.2 

.2

26 

8.3

2.0 

1.0 

.8 

13 

7.2

1.0 

.5 

3.0 

8.7 

.7

.4 

.2 

.2

.2

.1

.1 

16 

3.9 

23 

96

170 

174 

154 

125

103 

80

Mean

6.35

7.5; 

6.72

11.3

7.56 

3.37 

1.30 

.44 

.25 

.19 

.-24 

32.9 

11.8

6.59

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Sept.

67 

59 

51 

41 

32

21

15 

12 

11 

10

8.3 

6.2 

3.4 

2.3

1.6

1.0 

1.0 

1.0 '

1.1 

1.2

1.1

1.0 

.7 

.7 

.8

.8

1.0

.6 

.6

.5

Runoff in 

acre-feet

391 

448 

413

8,150

465 

187 

90 

26 

15 

11 

14 

2,020 

702

4,770
322 LITTLE COLORADO RIVER BASIN 

Little Colorado River near Hunt, Ariz.

Location.- Water-stage recorder, lat. 34°39', long. 109°42', in NE^NW^ (revised) sec. 4, 

f." 14 N. , R. 25 E., at bridge on U. S. Highway 260, 2 miles downstream from 2uni 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 clos9d basin surrounding yuemado, 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 1947. Records of 

monthly discnarge prior to October 1938 have been republished in Water-Supply Paper 

1049.

Average discharge.- 11 years, 27.5 second-feet.

Extremes.- Maximum discharge during year, 1,290 second-feet Aug. 23 (gage height, 10.50 

i'eet); minimum daily, 0.1 second-foot Apr. 27-29.

1929-33, 1940-47: 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-htight record, which are poor. Diversions above 

station for irrigation. Considerable regulation by many reservoirs (combined capacity, 

about 61,000 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 1946 to September 1947

Day

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

28

29

30

31

Oct.

30

31

16

f!3

f!2

fll

f9.2

fS.Z

f7.Z

f7.0

6.5

6.5

5.0

5.0

5.5

5.5

5.Z

5.0

5.4

5.4

5.7

5.7

5.7

5.7

5.6

5.9

5.9

5.9

6.4

6.1

6.2

Nov.

6.6

7.2

7.2

8.2

9.4

9.0

9.2

9.9

9.0

9.0

9.0

9.4

9.2

9.2

9.7

11

10

9

9

9

8

8

8

8

7

7

7

7

7

7

-

Dec.

7

7

7

7

7

7

7

7

7

7

*6.6

7.0

7.4

7.8

8.2

8.4

8.0

8.4

b8.0

b8.0

b8.8

b8.6

b8. 6

8.2

8.2

8.4

8.4

8.2

b7.6

b7.6

b7.4

Jan.

b7.2

8.0

b7.6

b7.4

b7.6

b7.6

b7.6

b7.6

b7.8

b8. 2

b8.4

b9.9

9.9

b9.9

*8.8

b7.6

b7.8

b9.2

b8.4

b8.4

blO

b!3

b!4

b!5

b!4

b!3

blO

b8. 8

8.8

b7.6

b9.2

Feb.

b8. 6

bll

9.9

10

10

10

9.7

7.6

4.7

3.3

2.5

1.8

1.8

1.6

1.6

1.4

1.2

1.2

*1.1

1.1

1.1

1.3

1.3

1.4

1.6

1.6

1.6

1.6

_

_

-

Month

December. . ... t .............................

Calendar year 1946 ......................

March. .....................................

April. ....................................

May. .......................................

September. .................................

Water year 1946-47 ....... ..............

Mar.

1.6

1.4

1.5

1.5

1.6

1.6

1.6

1.6

1.8

1.9

4.1

4.0

3.9

3.7

3.1

2.1

1.4

1.1

1.1

1.1

1.0

.7

.7

.7

.6

.6

.5

.7

.7

.7

.7

Apr.

0.6

.6

.6

.8

.7

.7

.7

.7

.51

.3

.5

.5

.6

.6

.6

.6

.7

.7

.6

.4

.5

.6

.4

.3

.2

.2

.1

.1

.1

.2

Secondfoot-days

237,6

10,611.6

1,026.6

6,157.9

May

0.5

.6

.6

.4

.4

. .2

.3

.2

.8

1.3

1.0

1.2

1.1

.8

.7

.7

.6

.7

.7

.6

.6

.3

.3

.3

.4

.5

.6

.6

.6

.6

.6

Maximum

8.8

601

189

856

June

0.6

.5

.6

.6

.6

.7

.6

.7

.5

.3

.3

.3

.4

.4

.4

.4

.6

.8

.8

.8

.8

.7

.6

.6

.6

.6

.5

.5

.5

.4

-

Minimum

6.6

.3

.8

.1

July

0.4

.4

.5

.5

.5

.6

.7

1.0

.6

.5

.4

.3

.3

.3

.4

.5

.6

.4

.4

.4

.5

.6

.6

.4

.3

.2

.2

.2

.2

.2

.2

Aug.

0.2

.2

.2

157

168

5.0

1.6

29

110

46

69

81

25

25

82

56

53

41

25

T7.6

28

159

502

856

339

230

190

165

148

139

f!25

Mean

7.67

29.1

9 3O

1 59

50

34.2

16.9

Sept.

f!42

189

102

72

f71

f37

f32

30

70

50

62

43

28

17

12

9

6

4

3

2

1

fl

f20

10

5

4

2

1

.6

.e

Runoff in 

acre- feet

524

472

21,050

2,040

12,220

Peak discharge.- Aug. 4 (9:5o p.m.) 665 

1,290 sec.-rt.; Aug. 24 (8 a.m.) 995 see.-ft. 

. * Winter discharge measurement made on this day

b Stage-discharge relation affected by Ice

-ft.; Aug. 9 (2 a.m.) 433 sec.-ft.; Aug. 23 (2:30 a.ii
LITTLE COLORADO RIVER BASIN 323

Little Colorado River near Woodruff, Ariz.

Location.- Water-stage recorder and concrete control, lat. 34°48', long. 110°03', in 

Nfi£ sec. -7, T. 16 N., R. 22 E., l£ miles northwest of Woodruff ana 5? miles (revised) 

downstream from Silver Creek. Datum of gage is 5,123.5 feet above mean sea level 

(from river-profile survey, based on datum of 1929).

Drainage area.- 8,100 square miles.

Records available.- March 1905 to December 1908, December 1915 to December 1919

(fragmentary), April 1929 to December 1933, September 1935 to September 1947. Records 

of monthly discharge prior to October 1938 have been republished in Water-Supply Paper 

1049.

Average discharge.- 16 years (1929-33, 1935-47), 61.8 second-feet.

Extremes.- Maximum discharge during year, 4,560 second-feet Aug. 29 (gage height, 8.26 

1'eet); no flow most of period June 29 to July 4.

1929-47: 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 period of ice .effect or no gage-height record, 

which are poor. Diversions above station for irrigation. Some regulation by reservoirs above station.

Discharge, in second-feet, water year October 1946 tc September 19-*7

Day

2

3

4

b

6

7

8

y

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

2fi

27

m

29

30

31

Oct.

56

43

40

35

35

40

40

35

30

25

25

25

25

21

18

17

17

17

17

17

16

16

15

15

1"

Nov.

15

14

13

12

11

10

9

9

12

14

14

14

15

17

19

14

14

12

10

10

10

10

12

13

11

10

12

13

13

Dec.

14

14

15

15

15

14

12

12

11

10

11

10

10

10

10

10

11

10

*6.5

5.4

6.5

8.3

12

12

11

11

10

7.7

5.4

5.9

Jan.

b8

bS

b7

b8

b9

b8

b8

b8

b6

7

10

15

18

12

b8 *b8

9

blO

blO

blO

blO

b8

b8

blO

b!4

16

16

14

b8

b8

Feb.

15

18

18

IS

18

17

17

17

15

11

11

11

11

10

9.0

*8.3

7.7

7.7

8.3

8.3

8.3

7.7

7.1

6.5

5.9

7.1

9.0

_

-

-

Month

December . ..................................

Calendar year 1946 ......................

March. .....................................

May. .......................................

July... ....................................

September. .................................

Water year 1946-47 ......................

Mar.

9.7

9.7

9.7

8.3

7.1

5.9

4.9

6.5

11

9.0

6.5

4.9

6.5

5.4

2.8

2.5

1.4

1.1

.8

.6

.4

.1

.1

.6

.1

1.4

1.4

.7

.8

.5

Apr.

.6

.5

1.4

1.4

1,7

1.1

.7

.7

.7

1.1

.8

.9

.7

.9

2.2

2.0

1.7

1.1

2.5

.7

.7

2.8

1.7

.7

.6

2.0

1.7

4.9

2.8

-

Seoondfoot-days

329.7

25,883.3

130.1

149.6

21.2

565.3

1,827.3

15,189.7

May

2.0

2.0

.5

.1

.1

.7

1.7

2.8

30

20

15

9.0

6.5

4.0

3.6

2.8

2.5

2.2

2.8

2.0

1.1

.9

8.8

5.9

3.3

4.9

3.3

3.6

3.6

2.2

Maximum

15

3,OOO

18

18

11

4.9

30

2.5

167

305

1,850

June

1.4

.9

.6

.6

.5

.5

.4

.4

.3

.4

.1

.3

.4

.4

.6

1.1

1.4

1.4

2.5

1.1

.8

.7

.5

.5

.5

.4

.1

0

.2

-

Minimum

14

9

5.4

0

6

5.£

.1

c

.]

o

0

.4

5.£

0

July

0

o

.2

.6

1.1

139

122

16

3.1

1.7

1.4

1.7

2.0

2.2

2.8

1.1

.7

.3

.3

.1

167

58

30

7.7

2.8

1.1

.8

.6

.6

.4

Aug.

.4

.5

.5

1,750

140

24

62

567

975

94 '

125

758

184

100

260

183

68

53

66

36

47

1,850,

67l) 5287

264

221

205

678

264

185

Mean

24.6

12, S

10.6

70.9

4.20

18.2

> 60.9

41.6

Sept.

180

152

94

172

70

36

305

139

86

56

65

46

34

22

17

12

8.3

7.7

56

31

11

7.7

13

20

15

11

9.0

7.7

5.9

"

Runoff in 

acre feet

1,510

750

654

51,340

607

630

258

83

297

42

1,120

20,550

3,620

30,120

Peak discharge.- Aug. 5 (11 a.m.) 3,OOO sec.-ft.; Aug. 10 (9:30 a.m.) 2,160 see.-ft.; Aug. 13 

(2:30 a.m.) 2,440 sec.-ft.; Aug. 23 (lO:30 a.m.) 3,7OO sec.-ft.; Aug. 29 (3:30 p.m.) 4,560 see.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Oct. 4-14, Oct. 19 to Nov. 8, Nov. 12-14; discharge computed on basis 

of recorded range In stage, precipitation records, and records for related upstream stations.
324 LITTLE COLORADO RIVER BASIN

Little Colorado River at Grand Falls, Ariz.

Location.- Water-stage recorder, lat. 35°26 I , long. lll°12i, in T. 24 N., R. 11 E., unsurveyed, at Grand Falls on Navajo Indian Reservation, 30 miles northeast of Flagstaff 

and 96 miles upstream from mouth. Altitude of gage, about 4,440 fert (from riverprofile map).

Drainage area.- 21,200 square miles.

Records available.- October 1925 to September 1947. Records of.monthly discharge prior 

to October I93b have been republished in Water-Supply Paper 1049.

Average discharge.- 22 years, 293 second-feet.

Extremes.- Maximum discharge during year, 10,600 second-feet Aug. 24 (gage height, 15.45 

reet); no flow on many days.

1925-47: Maximum discharge, 50,500 second-feet Apr. 5, 1929 (ga^e height, 30.0 

feet); no flow during some periods in each year.

A discharge of about 120,000 second-feet occurred Sept. 19, 1923 (gage height, 47.0 

feet, from floodmarks).

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are ralr, and those for period of ice effect or no gage-height reco-d, which are poor. 

Diversions above station for irrigation, municipal, and railroad USBS. Some regulation 

by reservoirs above station.

Discharge, in second- feet, water year October 1946 to Septembe- 1947

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.

fill

52

43

24

f!6

fll

flO

f8

 7

7

7

6

6

6

5

4

3

Z

2

Z

1

o

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

0

0

34

41

33

28

23

1915-

13

12

10

448

692

474

356

271

232

196

184

156

1,300

1,340

f710

f440

f306

Dec.

f249

*212

190

164

156

146

124

107

93

84

79

84

87

79

69

56

45

40

30

25

22

19

*17

16

15

12

11

10

5

28

210

Jan.

134

*160

140

120

loo

90

90

90

80

70

60

55

50

45

40

 30

a40

a35

a30

a25

a20

a2o

a20

a20

a20

a30

*63

43

24

21

17

Feb.

16

 12

21

37

41

40

36

34

32

30

34

226

335

302

286

*279

264

288

339

335

294

232

181

148

127

107

89

80

_

-

Month

October ..................................

November. ..................................

December. ................................

Calendar year 1946 ......................

January .................................. .

February. ..................................

March.. ....................................

April ...........................:........

May. .......................................

June .......................................

July... ....................................

August ................................... .

September ................................ .

Water year 1946-47 ......................

Mar.

68

58

57

58

68

70

64

72

113

118

101

87

72

64

58

57

99

111

95

93

95

107

120

280

275

232

187

154

120

97

89

Apr.

74

66

56

46

39

35

28

22

IS

11

8

fS

f3

f2

fl

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Secondfoot-days

333

7,333

2,484

68,619

1,782

4,245

3,339

411

21.)

O

0

37,542

6,386

64,068

May

0

0

0

0

0

0

o

0

0

0

0

0

0

0

3

10

4

1

0

0

0

0

116

52

25

2

0

0

0

0

0

Maximum

111

1,340

249

6,610

160

339

280

74

116

0

0

7,070

1,460

7,O7O

June

Minimum

0

o

5

0

17

12

57

0

0

0

0

0

2

0

July Aug.

0

o

0

0

. 0

989

551

168

113

635

2,800

930

320

2,290

900

923

2,540

1,310

565

393

462

 552

2,550

7,070

1,860

962

2,100

1,160

995

954

3,450

Mean

10.7

244

80.1

188

57.5

152

108

13.7

6.9

0

0

1,211

213

176

Sept.

1,460

745

395

299

164

104

152

193

222

615

537

277

140

a80

a50

a30

a20

18

15

13

438

169

100

63

37

22

13

8

5

2

Runoff in 

acre-feet

660

14,540

4,930

136,100

3,530

8,420

6,620

815

422

0

0

74,460

12,670

127,100

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for nearby 

stations.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

Note.- Stage-discharge relation affected by ice Dec. 3, Dec. 31 to Jan. 27, Feb. 2, 3.
LITTLE COLORADO RIVER BASIN 325

Little Colorado River near Cameron, Ariz.

Location.- Water-stage recorder, lat. 35°56', long. 111°34', unsurveyed, or Navajo Indian 

Reservation, 3 miles downstream from Coconino dam site, 9f miles downstream from 

Moenkopi Wash, t<|- miles northwest of Cameron, and 45.5 miles upstream from mouth.

Drainage area.- 26,500 square miles. 

Records available.- June to September 1947.

Extremes.- Maximum discharge during period, 21,900 second-feet Aug. 9 (gage height, 19.60 

feet); no flow on many days.

Remarks.- Records good. Diversions above station for municipal and railroad uses, and 

for irrigation of 25,200 acres. Some regulation by reservoirs above station (combined 

capacity, about 69,000 acre-feet, not including Lone Pine Reservoir and Lake Mary).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?

3

4

5

6

7

8

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

December. .................................

Calendar year ...................

May. ......................................

September. .................................

Thp period. . .............................

Mar. Apr.

Secondfoot-days

10,168

-

May

Maximum

5,120

-

June

Minimum

.

_

_

_

0

o

o

0

-

July Aug.

o

o

o

0

0

22

560

347

6,990

1,000

1,960

1,970

1,350

1,850

1,790

902

2,12O

3,510

928

536

1,580

1,960

2,890

7,280

3,430

1,400

1,010

2,790

1,210

1,100

2,O80

Mem

_

_

_

_

_

o

0

1,696

. 339

-

Sept.

3,120

984

554

1,070

351

209

181

286

258

223

727

436

266

143

89

69

53

38

24

203

82

394

175

91

65

42

24

9

2

0

-

Runoff in 

acre feet

_

_

_

_

_

0

0

104, 30 J

an,i7u

124,500
326 LITTLE COLORADO RIVER BASIN

Silver Creek near Shumway, Ariz.

Location.- Water-stage recorder, lat. 34°22'30", long. 110°OQi3Q", in S'^SEij sec. 4, T. 11 

." . 22 E. , 1,000 feet downstream from overflow channel from Mexican Lake, 1 mile 

stream from dam forming Daggs Reservoir, 4? miles southeast of S'-umway, and 8-i 

north of Showlow. Datum of gage is 5,913.48 feet above mean sea level, datum of

downs 

miles 

1929 .

Drainage area.- 172 square miles, of which S3 square miles are considered as noncontributTng:

Records available.- March 1942 to September 1947, Monthly records only prior to October

ib44.

Extremes.- Maximum daily discharge during year, 33 second- feet July 22-25; minimum daily, 

U.4 second-foot, Aug. 25, 26.

1942-47; Maximum daily discharge, 40 second- feet June 26, 1942; minimum daily, 0 2 

second- foot on many days in 1945, 1946.

Remarks . - Records good except those for period Dec. 29 to Feb. 19, whic 1! 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, arid below elevation 5,965.5 feet, crest of spillway from Mexican Lake). No overflow from Daggs Reservoir and Mexican Lake this year through Mexican Lake overflow channel.

Discharge, in second-feet, water year October 1946 to September 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

Got.

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

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

3.3

9.5

7.4

1.6

1.6

1.7

1.7

1.7

Nov.

1.7

1.8

1.8

1.9

1.9

 1.7

1.7

1.7

1.8

1.8

1.7

1.7

1.7

1.8

1.8

1.7

1.7

1.6

1.6

1.5

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.2

-

Dec.

1.2

1.2

1.2

1.2

1.2

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

1.2

1.2

l.Z

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1

1

1

Jan.

> 1

Feb.

1

1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.2

1.2

_

-

Month

Ootober. ............................... ...

November ......................... .........

December ...................................

Calendar year 1946 ......................

January ................. ..................

February ...................................

March ......................................

April ......................................

May.. .....................................

June. ......................................

July .......................................

Auguat .....................................

September ... ............... ..............

Water year 1946-47 ... ..................

Mar.

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

1.0

1.0

1.0

3.5

5.7

5.7

11

16

16

16

16

18

22

22

22

Apr.

22

22

22

22

22

21

21

21

21

21

21

21

21

21

22

22

22

22

22

22

22

22

22

22

22

22

23

23

22

22

-

Secondfoot-days

52.3

47 5

35 '.5

3,006.0

31

28.6

195.7

653

911

763

884

252 9

513!9

4,368.4

May

23

22

24

28

29

32

32

31

31

32

32

32

32

32

32

32

32

32

32

32

31

32

32

32

31

27

24

24

25

25

£4

Maximum

9.5

1.9

1.2

26

22

23

32

27

33

32

21

33

June

23

23

24

24

25

25

26

26

26

26

26

26

26

26

26

26

27

27

27

26

26

25

25

26

25

C5

25

25

25

25

-

Minimum

1.0

1.2

1

.2

1.0

21

22

23

24

.4

5 " 9

.4

Jily

25

25

24

24

24

24

24

25

25

25

25

26

27

28

29

30

30

30

30

31

31

33

33

33

33

32

32

32

31

31

32

Aug.

32

31

31

29

18

4.1

3.5

.5

.6

.5

.6

.7

.7

.7

.7

.9

.7

.6

.6

.6

.6

.5

.9

.6

.4

.4

9.5

20

21

21

21

Mean

1.69

1.58

1.15

8.24

1

1.02

6.31

21.8

29.4

25.4

28.5

8. 16

17.1

12.0

Sept.

21

20

20

20

19

19

19

19

19

19

19

19

19

19

20

20

20

20

19

19

19

18

16

14

12

9.2

5.9

9.S

11

10

-

Runoff in 

acre-feet

104

94

70

5,970

61

57

388

1,300

1,810

1,510

1,750

502

1,020

8,670

Note.- Wo gage-height record Dec. 29 to Feb. 19; discharge computed on basis of 2 discharge 

measurements and recorded range in stage.
LITTLE COLORADO RIVER BASIN 327

Silver Creek near Woodruff, Ariz.

location.- Water-stage recorder, lat. 34°44', long. 110°02', in SE£ sec. 32, T. 16 N.,

 H. {Jti H., half a mile upstream from mouth and 3 miles south of Woodruff. Control lor 

station is crest of diversion dam 1,700 feet downstream. 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 July 1947 (discontinued).

 Records of monthly discharge prior to October 1938 have been republished, with some 

additions, in Water-Supply Paper 1049.

Average discharge.- 15 years (1929-33, 1935-46), 25.6 second-feet.

Extremes.- Maximum discharge during period October to July 1947, 358 second-feet July 7 

(gage height, 3.33 feet); no flow on many days.

1929-47- 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 each year.

Revisions.- The maximum discharge for the water year 1929 has been revised to 10,500 

second-feet July 21, 1929 (gage height, 11.67 feet), superseding figure published in 

Water-Supply Paper 689.

Remarks.- Records good above 5 second-feet and fair 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 dam. Canal flow was measured as 

follows: Oct. 16, 2.45 second-feet; Nov. 15, 2.18 second-feet; Feb. 17, 5.02 secondfeet; May 6, 7.33 second-feet; June 10, 6.04 second-feet; July 15, 6.46 second-feet.

Discharge, in second-feet, water year October 1945 to September 1947

Day

1

2

3

4

5

6

V

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Oct.

24

24

24

24

24

24

22

21

21

20

20

19

19

18

17

17

17

18

18

16

16

15

15

14

12

11

10

13

11

11

12

Nov.

14

13

12

11

11

10

8

8

8

9

9

8

7

7

8

8

8

8

7

6

6

6

6

6

7

7

8

7

7

7

-

Dec.

7

7

8

8

8

8

7

7

8

8

8

8

8

8

9

B

8

8

8

8

8

8

9

9

9

8

8

8

8

8

8

Jan.

7

8

8

7

6

8

8

8

7

7

6

7

8

8

8

6

7

8

8

8

8

7

8

8

8

8

8

7

7

6

7

Feb.

7

8

9

9

10

8

8

8

8

8

8

8

8

8

8

8

6

3

3

5

6

6

.6

O

0

0

2

6

_

_

-

Month

December ...................................

Calendar year 1946 ............... .......

March. .....................................

April. ......................... ...... ....

May. ................................... ...

July l-]5... ........ . . ........... .......

September. ..................... . . . .....

The period - ..... ......... . . ...

liar.

8

8

s

6

2

.1

0

O

3

3

2

0

O

O

0

0

0

0

0

O

0

0

O

O

0

1

1

0

O

0

1

Apr.

0

0

0

.6

1

.9

O

0

.1

.7

.6

.4

.3

.6

.8

1

.6

.1

1

.4

O

.7

0

0

0

.1

.5

1

2

.6

-

Secondfoot-days

248

7,858.3

-

-

May

0.8

.8

.2

0

0

.6

.3

2

1

3

4

6

4

2

2

2

1

1

2

1

.7

.6

.3

9

3

3

3

3

3

2

.8

Maximum

9

1,320

-

-

June

o

o

0

0

0

0

o

0

0

0

0

o

o

0

0

.3

0

0

1

.5

0

0

0

o

o

o

0

0

0

0

Minimum

7

O

_

-

JUy

0

0

0

0

.6

.3

55

46

4

3

2

2

3

3

4

.

_

_

_

-

_

_

.

-

.

_

_

_

_

-

Aug.

Mean

8.0

21.5

1 39

_

-

Sept.

Runoff in 

acre-feet

492

15,570

123

_

3,340

852060 O - 49 - 22
328 LITTLE COLORADO RIVER BASIN

Showlow Creek at Showlow, Ariz.

Location.- Water-stage recorder, lat. 34°15 I 10", long. 110 0 01'40", in NE£ sec. 20, T. 

iU N., R. 22 E., at bridge on U. S. Highway 60 at Showlow. Datura 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 1947. Monthly records only prior to 

October 1944.

Extremes.- Maximum discharge during year, 166 second-feet Nov. 25 (gage height, 3.96 feet) 

 no flow Apr. 21, 22, May 8.

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

which are poor. Many small diversions above station for irrigation. Some regulation 

by" storage reservoirs upstream, the largest of which are Lakeside Reservoir on Showlow 

Creek and Scott Reservoir on Porter Creek (capacity, about 1,200 acre-feet each).

Discharge, in second-feet, water year October 1946 to September 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.

4

3

3

3

3

4

4

4

4

3

4

4

3

3

4

4

4

5

5

5

5

4

4

4

5

5

6

7

12

9

7

Nov.

7

7

7

7

8

a

8

9

11

11

10

13

13

17

30

36

26

22

17

15

13

11

11

31

103

35

20

16

13

20

-

Dec.

19

18

18

8

4

5

4

4

4

4

5

4

4

5

5

4

4

4

4

4

4

4

5

5

5

6

9

10

7

6

5

Jan.

5

6

6

5

S

6

4

6

6

7

7

6

6

6

6

4

6

7

6

6

6

6

7

8

a

8

8

b7

6

5

5

Feb.

5

5

4

5

5

5

4

4

7

9

11

14

16

15

15

15

15

14

11

a

7

5

4

4

3

3

3

5

_

-

Month

October ....... ..................... ......

November . ................."....... .........

December. ..................................

Calendar year 1946 ......................

January. ...................... .......

February ............................ ....

March. .......................... ......

April ........................ ..... .......

May.................. ....... .. V ... ......

June .................. .....................

July. ............. ................ .......

August ............................. ......

September. ........... .....................

Water year 1946-47 ......................

Mar.

7

9

13

15

14

12

10

9

8

7

6

5

5

5

4

3

2

2

2

1

1

1

1

2

1

.6

.6

f .7

f .5

a. 5

a. 5

Apr.

ao.4

a. 4

a. 3

a. 3

a. 2

a. 2

a. 2

a.l

a.l

a.l

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

o

.1

.4

.4

.6

.6

.4

.2

.8

1

May

2

.

.

.

3

3

3

.4

.2

Q't

t

5

8

2

.

f

Z

3

4

S

.3

.2

t

\

2

a

i

.1

.1

t

..

i

i

L

.1

.1

t

\

.

i

?

2

.2

Second- _ _ , _ _ foot-days "ax1"" 

144 12

555 103

197 19

3,223:7 979

191 8

221 16

148.8 15

7.9 1

2t! .8 8

17.8 2

24.0 4

181.3 34

66.2 8

1,777.8 103

June

'1.1

.5

.7

.9

.4

.4

.2

.2

.4

.3

.2

.1

.4

.7

.6

1

.6

2

2

2

1

.4

.4

.2

.2

.2

.2

.2

.4

-

Minimum

3

7

4

0

4

3

O

0

.]

.]

.]

.£

O

July

0.8

1

.a

.3

.4

.8

.6

.2

.2

.4

.4

.6

.4

2

4

2

.4

.4

.1

.1

.1

.2

2

2

]

1

.6

.6

.3

.2

.1

Aug.

C.I

.6

.a

3

11

4

1

.6

.4

1

6

5

4

6

15

33

17

4

2

2

1

.8

.8

.a

.8

.6

34

13

7

3

3

Sept.

7

3

1

1

2

2

1

1

2

1

3

2

1

1

1

.a

.a

f .a

f .8

ra

a4

a3

a3

a3

a3

aZ

aZ

a2

a2

u«an Runoff in M<3an acre-feet

4.6 286

18.5 1,100

6.4 391

8.83 6,400

6.2 379

7 . 9 438

4.60 295

.26 16

.77 47

.59 35

.77 48

5.85 360

2.21 131

4.87 3,530

a No gage-height record: discharge based on a normal recession trend following a small rise, or by

Interpolatlon.

b Stage-Jlscharge relation affected by Ice.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
LITTLE COLORADO RIVER BASIN 329

Puereo River near Adamana, Ariz.

Location revised).- Water-stage recorder, lat. 34°58'45", long. 109°47'40", inNE^-see. 9, 

Ji., at highway bridge in Petrified Forest National Monument, a quarter

Datum of gage is

T . ia N ., R . __ _., _ _ __.._ ______ ______ _ _ ________

of a mile downstream from Dead Wash and If miles east of Adamana.

5,312.92 feet above mean sea level, datum of 1929. 

Drainage area.- 2,760 square miles. 

Kecords available.- Maroh 1940 to September 1947. 

extremes.- Maximum discharge during year, 22,000 second-feet Aug. 10 (gage height, 8.6

feet], from rating curve extended above 17,000 second-feet by logarithmic plotting;

no flow during most of year.

1940-47; Maximum discharge, 30,000 second-feet Aug. 12, 1946 (gag3 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 pimping, above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ......................... .........

mber. ..................................

lendar year 1946 

ary

h. .....................................

1. .....................................

ember. .................................

ter year 1946-47 ......................

Peak discharge.- A

7,280 sec. -ft.; Aug. 

(6 a.m.) 15,800 sec. 

a No gage-height r 

curves, and probable

Mar. Apr. May

o 

o 

o

0 

0

0 

0 

0

0 

5

1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

June

foot^s Maximul11 Minimul11

000 

ooo

000

22,480 2,490 0

000 

000 

000 

000 

000 

650 

34 30 0 

22,473 5,150 0 

1,940 1,130 0

24,453 5,150 0

July

0 

0 

0 

0 

0

0

1

0 

0 

0

0

o

0 

0 

0

o

30 

a2 

al 

0

0

0 

0

0 

0

0 

0 

0 

0 

0 

0

Aug.

0 

0 

0 

283 

49

16 

2 

93 

306 

826

130 

213 

2,150 

627 

984

801 

496 

539 

697 

1,120

841 

2,310 

2,170 

796 

306

101 

454 

224 

103 

5,150 

686

Sept.

100 

25 

13 

15 

159

50 

42 

195 

1,130 

136

57 

a!5 

a3 

0 

0

0 

0 

0 

0 

O

0 

0 

0 

0 

0

0 

0

o 

o

0

 _, Runoff in 

Mean acre-feet

0 0

o o 

o o

61.6 44,590

0 0 

0 0 

0 0 

0 0 

.2 12 

0 0 

1.1 67 

725 44,570 

64.7 3,850

67.0 48,500

og. 10 (12 m.) 22,000 sec. -ft.; Aug. 13 (11 a.m.) 7,500 sec. -ft.; Aug. 22 (4 a.m.) 

22 (2 p.m.) 8,440 sec. -ft.; Aug. 22 (11:30 p.m.) 6,630 sec. -ft.; Aug. 30 

-ft.; Sept. 9 (4:30 a.m.) 6,420 sec. -ft. 

scord; discharge computed on basis of adjoining record, shape of normal recession 

time that flow stopped.

Cnevelon Fork below Wildcat Canyon, near Wins low, Ariz.

Location.- Water-stage recorder, lat. 34°38', long. 110°43', in SW£ sec. 36, T. IS N., R. 15 E. 

three-eighths of a mile downstream from Wildcat Canyon, 25 miles south of Winslow. 

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.

Kecords available.- May to September 1947.

Extremes.- Maximum discharge during period, 72 second-feet Aug. 23 (gage height, 3.19 

feet) ; no flow most of period.

Remarks.- Records good. The station is .lust downstream from Wildcat Reservoir site. No 

diversion above station.
LITTLE COLORADO RIVER BASIN

Discharge, In second-feet, of Chevelon Fork below Wildcat Canyon, near Wlnslow, Arlz., 

May to September 1947

Day

1

Z 

3 

4 

5

Aug.

0 

0 

0 

0 

0

Sept.

2.9 

2.2 

1.8 

1.3 

.9

Day

6

I

9

10

Aug.

0 

0 

0 

0 

0

Sept.

0.5 

.2 

.2 

.3 

.2

Day

11 

12 

13 

14 

15

Month

May .................... .

June 

July 

Augu 

Sept

Th e period May 1 to Sept. 3u, 

1947.. ......................

Aug.

0 

0 

0 

0 

0

Sept.

0.1 

0

0 

0 

0

Secondfoot-days

0 

0 

0 

166.2 

10.6

-

Day

16 

17 

18 

19 

20

Aug.

0

0 

0

0 

0

Sept.

0

0 

0 

0 

0

Maximum

0 

0 

0 

50 

2.9

-

Day

21 

22 

23 

24 

25

Aug.

0 

0 

18 

50 

38

Minlmum0 

0 

0 

0 

0

-

Sept.

0 

0 

0 

0 

0

Day

26 

27 

28 

29 

30 

31

Mean

0 

0 

0 

5.36 

.35

-

Aug.

22 

13 

8.9 

6.4 

5.2 

4.7

Sept.

0

0 

0 

0 

0

Runoff in 

acre-feet

0 

0 

0 

330

21

351

Arl".

Location.- Hater-stage recorder, lat. 34°56', long. 110°31', in SE^-SH^ sec. 27, T. 18 N., 

K. 17 E., 3 miles upstream from mouth and 12 miles southeast of Hinslow. Altitude of 

gage, about 4,905 feet (from river-profile map).

Drainage area.- 1,010 square miles, including some area which is probably noncontributing.

Kecords available.- December 1905 to December 1908 (January 1907 to December 1908, gage 

neignts ana some discharge measurements only), December 1915 to December 1919, March 

1929 to February 1934, September 1935 to September 1947. Records of monthly discharge 

prior to October 1938 have been republished, with some additions, in Water-Suoply 

Paper 1049.

Average discharge.- 19 years (1916-19, 1929-33, 1935-47), 51.9 second-feet.

Extremes.- Maximum discharge during year, 2,460 second-feet Aug. 4 (gage height, 8.84 

t'eet); minimum daily, 3.3 second-feet on several days during year.

1916-19, 1929-47: 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 secondfoot at times in each of several years.

Remarks - Records good except those for periods Apr. 33 to May 26, Aug. 5 to Sept. 30, 

wnieh are fair, and those for periods of no gage-height record or wind-affected gage 

heights, which are poor. No diversion above station. Chevelon Cana,L diverts 2 miles 

downstream from station.

I'i:;enarbe, in seeund-fepc, water -jea.r October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

2?!

24

25

26

27

28

29

30

31

Oct.

9.6

8.0

6.5

5.6

5.3

5.0

5.0

5.3

5.3

5.3

5.0

5.0

5.0

5.0

4.8

4.4

4.4

4.4

4.4

4.2

4.4

4.4

4.4

4.4

4.6

4.4

4.4

4.4

4.2

4.2

4.6

Nov.

4.8

13

35

25

a!8

a!3

alO

aB

a7

a6

5.9

6.2

5.6

8.5

132

492

326

215

160

120

102

101

86

82

919

562

261

164

123

105

-

Dec.

86

72

63

55

50

42

35

30

£7

26

26

23

19

16

14

12

10

8.4

7.0

6.5

5.4

4.9

4.4

4.2

4.0

3.6

3.4

110

284

140

112

Jan.

136

110

82

67

57

46

44

43

36

34

29

24

20

22

26

20

19

18

16

16

16

13

12

10

9.4

9.1

e8.4

e7.4

9.1

13

20

Feb.

21

22

23

20

20

19

25

46

84

139

147

131

124

117

118

144

142

147

126

92

72

61

53

47

42

35

631

30

_

_

-

Month

December. ................................"..

Calendar year 1946 ......................

Hay

September . .............................. .

Water year 1946-47 ......................

Mar.

34

36

34

31

55

90

71

63

53

47

46

45

58

96

73

60

57

56

58

58

75

114

90

73

58

45

36

29

26

20

18

Apr.

14

12

e9.1

7.0

6.5

6.2

5.2

4.4

4.4

4.9

5.4

5.4

4.7

4.2

4.2

4.0

3.6

e3.4

3.4

3.8

3.8

3.4

3.3

3.3

3.4

3.3

3.4

3.6

4.0

4.7

-

Secondfoot-days

155.9

4,116.0

1,303.8

11,854.5

125.3

154.1

132.2

11,792.8

May

4.9

5.2

4.9

4.9

4.7

4". 4

3.8

3.8

3.4

4.9

4.9

4.9

4.9

e4.4

4.4

4.9

4.4

4.4

4.4

4.4

4.2

4.2

4.0

6.2

5.4

4.2

e4.0

3.8

4.0

3.8

3.8

Maximum

9.6

919

284

919

136

147

114

14

6.2

5.7

8.8

396

6.3

919

June

4.0

3.8

3.4

3.6

3.6

3.6

3.6

3.4

e3.3

3.3

e3.4

3.8

4.4

4.4

4.4

4.2

3.8

5.4

5.7

e3.8

e4.0

4.9

5.7

5.7

4.9

4.7

3.8

3.8

4.2

4.7

-

Minimum

4.2

4.8

3.4

2.9

7.4

19

18

3.3

3.4

3.3

4.0

4.0

3.3

3.3

July

5.2

4.9

5.2

4.9

4.7

4.4

6.0

8.8

7.7

6.0

4.9

5.2

5.2

4.4

5.4

6.0

5.2

5.2

4.9

4.7

4.4

4.2

4.2

4.0

4.0

4.0

4.2

e4.0

4.0

4.0

4.2

Aug.

4.2

4.2

4.4

396

31

12

10

8.0

8.6

14

6.7

5.2

4.4

4.2

4.0

59

9.8

8.0

5.7

4.9

4.4

6.1

6.2

5.4

4.7

62

22

7.4

6.2

5.7

5.2

Mean

5.03

137

4?.l

32.5

32.0

74.2

S'S.O

5.07

4.47

4.18

4.97

23.9

4.41

32.3

Sept.

4.7

4.7

4.7

4.4

4.4

4.4

4.4

6.3

4.7

4.0

3.8

4.2

4.0

3.8

3.8

3.6

3.3

3.3

3.6

5.2

4.7

4.4

4.7

4.7

4.7

4.7

4.7

4.9

4.7

4.7

-

Runoff In 

acre-feet

309

8,160

2,590

23,510

1,970

4,120

3,380

301

275

249

306

1,470

262

23,390

Peak discharge.- Nov. 25 (9 a.m.) 1,550 sec.-ft.) Aug. 4 (3:30 a.m.) 2,460 sec.-ft. 

a NO gage-height record; discharge computed on basis of recorded range In stage and trends Indicated by adjoining good record.

e Oage height affected by wind; discharge computed from estimated non-wlnd-affected gage heights.
LITTLE COLORADO RIVER BASIN 331 

Clear Creek below Willow Creek, near Winsipw, Ariz. 

Location.- Water-stage recorder, lat. 34°40', long. 111°00', in NW^ sec. 30, T. 15 N., R.

13 E. , 2 miles dirftijf ream frorr Willow Creek and 30 miles southwest of Winslow. 

Drainage area.- 321 squire miles. 

Kecords available.- June to September 1947. 

Extremes.- Maximum discharge during peri 3d, 60 second-feet Aug. 17 (gage height, 4.21

reet); no flow most of period. 

Remarks.- Records good. No diversion above station.

Discharge, In second-feet, 1947

Day

Aug. 1 

2 

3

4 

5

Discharge

0 

0 

0 

0 

0

Day

Aug. 6 

7 

8 

9 

10

Discharge

0

0 

0 

0 

0

Day

Aug. 11 

12 

13 

14 

IS

Month

June ..................................

Septemb

The p erlod June 1 to Sept. 30, 1947..

Discharge

0 

0 

0 

0 

0

Secondfoot-days

0 

0 

141.5

0

-

Day

Aug. 16 

17

, 1 "2 °

Discharge

0 

16 

36 

18 

13

Maximum

0 

0 

36 

0

-

Day

Aug. 21 

22 

23 

24 

25

Discharge

8 

6 

5 

16

10

Minimum

0 

0 

0 

0

-

Day

Aug. 26 

27 

28 

29 

30 

31

Mean

0 

0 

4.56 

0

-

Discharge

6 

4 

2 

1 

.4 

.1

Runoff in 

acre-feet

0 

281 

0

281

Clear frec-n near Wiaslow, Ariz.

Location.- Water-stit 1 recorder, lat. 34°58', long. 110°38', in SE^ sec. 9, T. 18 N., R.

 16 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. '

Kecords available.- June 1906 to January 1909 (gage heights only and some discharge 

measurements January 1907 to January 1909), March 1929 to February 1934, September 

1935 to September 1947. Jane 1906 to January 1909 at site 2-J miles upstream. Records 

of monthly discharge prior to October 1938 have been republished in Water-CupplyPaper 1049.

Average discharge.- 1G years (1929-33, 1935-47), 86.5 second-feet.

iixtremes.- Maximum discharge during year, 1,740 second-feet Nov. 25 (gage height, 6.83 

feet); no flow on many days.

1929-47: 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 period of no gageheight record, which are poor. Water diverted above station for municipal and railroad 

use. Records show discharge over dam and do not include flow in caml that diverts at 

dam or leakage through dam. Average leakage below dam this year was 2.5 second-feet 

based on two discharge measurements.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

17

18

19

20

21

22

23

24

25

26

28

30

31

Oct.

9.0

6.0

4.0

3.1

1.8

1.4

1.0

1.0

1.0

.6

.6

:e

.6

.6

.6

1.0

1.4

1.0

1.0

1.4

1.8

1.8

1.8

1.4

1.4

1.4

1.8

2.2

1.8-

1.4

1.4

Nov.

1.8

2.2

79

68

50

42

32

26

24

20

16

12

10

13

13

416

449

308

254

190

158

138

123

107

683

906

457

284

190

144

-

Dec.

112

97

83

76

68

65

61

57

65

68

65

54

45

36

36

34

28

26

26

22

18

15

13

10

9.0

9.0

8.0

11

474

240

a!40

Jan.

a!30

a!40

allO

a80

a60

a50

a50

a40

a40

a30

a30

a30

a20

a20

a30

a20

a!5

a!4

a!2

alO

9.0

9.0

9.0

7.0

6.0

5.0

5.0

5.0

7.0

7.0

10

Feb.

15

16

15

13

12

12

12

15

26

75

128

133

128

133

133

144

177

203

196

151

128

123

107

87

80

72

65

65

_

_

-

Month

Nove 

Dece liber. ......................... . .

January ...... ............. ...............

March. ........................ ............

April ......................................

May. .......................................

July. ......................................

September ....... ............ .............

Water year 1946-47 ...... ...............

Mar.

68

83

83

80

83

87

92

83

80

68

61

54

47

61

80

76

76

83

97

123

190

247

210

196

170

133

123

107

102

97

87

Apr.

76

72

61

50

45

42

36

34

30

24

20

16

15

12

9.0

8.0

8.0

6.0

4.0

2.7

.1

0

0

0

0

0

0

0

0

0

-

May

0

0

O

0

0

0

0

O

O

0

0

0

o

0

0

0

o

0

0

0

0

0

.1

0

0

0

0

0

0

Second- Maximum 

foot-days

55.9 9.0 

5.21F.O 906 

2,071.0 474

1,010.0 140

218.5 125

15,371.8 906

June

Minimum

0.6 

1.8 

8.0

5.0

0

0

Jvly

0

0

0

o

0

1.2

0

0

0

o

0

0

o

0

0

0

0

0

0

0

o

0

0

0

0

Aug.

0

O

2.7

0

324

87

30

2.7

0

2.2

Sept.

1.4

.2

.2

.2

0

53

.6

Mean H«n°« in 

acre-feet

1.80 

174 

66.8

32.6

lO4

7.28

42.1

111 

10,350 

- 4 L110__

2,000

433

30,490

a No gage-height record; discharge computed on basis of records for Chevelon Fork near Winslow.
332 LITTLE COLORADO RIVER BASIN

Moenkopi Wash near Tuba, Ariz.

Location.- Water-stage recorder, lat. 36°02', long. 111 0 24', in T. 31 N., R. 9 E., unsurveyed, on Navajo 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 1947. Records of monthly discharge prior to 

October 1938 have been republished in Water-Supply Paper 1049.

Average discharge.- 21 years, 21.2 second-feet.

Extremes.- Maximum discharge during year,2,860 second-feet Aug. 17 (gage height, 5.15 

feet); no flow on many days in spring and sumrrpr.

1926-47: Maximum, discharge, 15,100 second-feet 1 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 fragmentary or no gageheight record, which are poor. Diversicns above station for irrigation

Discharge, in second feet, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

11

4.2

2.8

2.2

2.0

2.4

2.8

2.8

2.8

2.8

2.8

2.8

2.4

1.7

2.4

1.8

.6

.7

.6

.2

.2

.1

0

0

0

0

0

3.3

3.9

3.6

3.9

Nov.

4.2

3.6

3.6

3.9

3.6

3.6

3.6

95

alO

1 a5

-

Dec.

} -

4.5

5.2

5.2

5.6

5.6

4.2

4.8

4.2

4.2

4.8

*4.5

5,2

4.8

5.2

5.2

4.8

b5

b5

b6

7

8

7

6

6

6

b5

b5

b4

Jan.

b4

b3

b3

b3

b3

b3

b3

b3

b3

b3

b3

b3

b3

b3

*b3

b2

b2

b3

b3

b3

b3

3

3

4

4

4

7

6

6

7

b6

Feb.

b5

b5

*b5

6

7

7

6

6

6

5

6

5

4

4

3

.8

.2

.2

.2

.2

.2

2

2

4

3

2

.6

.3

_

_

-

Month

Deosmber ...................................

Calendar year 1946 ......................

Janu 

Febr

Ufa*.

July 

Augu 

September ..................................

Water year ia46 47 ......................

Mar:

0.2

.1

0

o

0

0

0

0

0

0

0

o

0

o

0

0

0

4

4

4

4

3

1

.9

.2

0

Apr.

Secondfoot-days

66.8

236.1

160.0

5,268.7

112 

96.7

41.4

0

8.2

0

0 

3,553.4 

309.1

4,583.7

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7

1

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

11

95

8

1,250

7 

7

4

0

7

0

0 

827 

78

827

June

Minimum

0

_

-

0

2

.2

0

0

0

0

0 

0 

0

0

July Aug.

0

0

0

32

1.2

.1

22

2.2

279

f78

fl7

f!39

f232

f357

35

36

437

f447

27

25

306

827

f96

17

14

9.7

24

33

f25

f9.2

M-mn

£.15

7.87

5.16

14.4

3.6 

3.45

1.34

0

.26

0

0 

115 

10.3

12.6

Sept.

5.4

3.4

69

f78

f28

13

9.2

7.2

5.4

3.0

2.2

2.0

1.1

.1

0

0

1.3

1.6

.1

69

f7.7

f2.0

f .3

0

0

0

o

0

0

Runoff in 

acre feet

132

468

317

10,450

222 

192

82

0

16

0

0 

7,050 

613

9,090

Peak discharge.- Nov. 8 (5:30 a.m.) 655 sec.-ft.; Aug. 9 (9 a.m.) 840 sec.-ft.; An^. 14 (4 

1,790 sec.-ft.j Aug. 17 (8 p.m.) 2,860 sec.-ft.; Aug. 21 (5:30 p.m.) 2,220 ser.-ft.: AUG. 2C (7:.iO 

a.m.) 2,170 sec.-ft. _^

» Winter discharge measurement made on thls-day.

a Ho gage-height record; discharge computed on Tiasls of adjoining good record, weather records, 

and record for Parla River at Lees Ferry.

b Stage-discharge relation affected by Ice.

f Discharge computed from wholly or partly estimated gage heights.
BRIGHT ANGEL CREEK BASIN 

Bright Angel Creek near Grand Canyon, Ariz.

333

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 1947. Records of monthly discharge prior to 

October 193H have been republished in Water-Supply Paper 1049.

Average discharge.- 24 years, 39.9 second-feet.

Extremes.- Maximum discharge during year, 310 second-feet Aug. 27 (gage height, 3.10 

reet); minimum daily, 18 second-feet July 19.

1923-47: Maximum discharge, 4.400 seennd-feet Aug. 19, 1936, by slope-area method; 

minimum, 9 second-feet (regulated) June 29, 1934.

Remarks.- Records good. Small diversions above station for irrigation. Some fluctuation 

in now caused by power plant 9 miles above station; no regulation by storage.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

S

3

4

5

6

7

8

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

21

2222-

23

27

21

20

21

22

22

22

22

22

22

23

24

22

22

22

22

22

22

23

23

23

24

24

25

24

23

Nov.

24

24

23

23

23

23

23

25

24

24

23

23

23

24

24

23

22

22

22

23

23

24

26

28

25

25

24

24

24

24

-

Dec.

24

24

24

24

24

24

24

24

ZA

24

24

24

24

23

22

22

22

22

23

23

23

23

23

22

22

24

28

28

25

25

25

Jan.

25

25

25

25

25

25

25

25

24

24

24

25

26

26

25

25

24

24

24

24

24

24

24

24

25

25

25

26

26

25

24

Feb.

23

23

23

23

23

24

24

24

25

25

25

25

24

24

24

25

25

25

25

24

24

23

23

23

24

24

25

24

_

_

-

Month

October. ............. .....................

November ................... ..... ........

December ................. ...............

Calendar year 1946 .................... .

January. ....................... ......... .

February .................... . . ..... .....

March. ...... .............. ... .... .....

April. . . ................... . . ... . . ....

May.. .. .................. .... ...... ...

June ......... ....... ......... . . ........

July. ... . . .............. ........... ...

August. . .... ............... ....

September. ...................... ...

Water year 1946-47 ... . . - ......

Mar.

24

24

24

24

25

25

24

25

24

24

23

23

23

23

23

24

24

25

26

28

30

32

34

35

34

35

38

41

43

46

50

Apr.

52

51

49

48

46

41

40

39

41

40

40

39

39

39

40

44

46

49

52

51

50

51

50

45

41

38

37

3S

36

36

-

Secondfoot-days

714

712

737

11,697

767

673

903

1,306

920

634

609

740

fi21

9,336

May

35

35

36

36

37

37

35

34

34

34

35

32

30

30

31

29

28

27

26

26

26

26

26

25

25

24

24

25

24

24

24

Maximum

 *7

28

28

150

26

25

50

52

37

24

22

22

52

June

24

23

23

21

21

21

20

20

20

21

21

22

22

21

21

21

21

21

21

21

21

23

22

21

20

21

20

20

20

20

-

Minimum

20

22

22

20

24

23

23

36

24

20

18

20

20

18

July

20

20

20

20

20

20

20

22

20

20

20

20

20

19

20

19

19

19

18

19

19

19

19

19

19

19

20

20

20

20

20

Aug.

20

20

20

21

20

20

20

25

34

23

31

25

24

23

23

25

24

23

23

27

30

23

23

23

2;

22

36

23

23

22

21

Mean

23.0

23.7

23.8

32.0

24.7

24.0

29 1

43 5

29 7

2l!l

19.6

23 9

2o!7

25.6

Sept.

21

21

21

20

20

21

20

20

20

20

20

20

20

20

20

21

22

22

22

22

22

21

21

21

21

20

20

20

21

21

-

Runoff in 

acre- feet

1,420

1,410

1,460

23,200

1,520

l,:5n

1,790

o 590

1 ,8 2O

1,260

1,210

1,470

1,230

18,510
334 VIRGIN RIVER BASIN

Virgin River at Virgin, Utah

Location.- Chain gage, lat. 37"13', long. 113°11', in SE^SE^ sec. 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 1947 (fragmentary prior to October 1926).

Average discharge.- 28 years (1910-14, 1915-16, 1917-18, 1923-24, 1926-47), 214 secondfeet.

Extremes.- Maximum discharge observed during year, 1,040 second-feet Oct. 29 (gage height, 

TTSDTeet); minimum observed, 53 second-feet July 29.

1909-47: 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; channel conditions unstable. Diversions 

above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

5

fi

7

n

9

10

11

12

13

14

15

16

17in

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

173

356

136

97

202

ISO

116

116

116

110

105

105

110

110

116

173

127

127

122

127

127

122

122

122

122

122

133

543

1,040

159

146

Nov.

105

95

100

100

105

105

105

140

105

95

1.05

105

301

524

143

122

116

140

133

133

140

146

6600

e300

136

124

130

136

136

136

-

Dec.

133

133

127

127

140

194

226

124

136

136

136

143

143

149

159

159

194

166

152

140

133

130

130

136

173

287

468

133

130

119

113

Jan.

119

133

140

133

173

143

162

162

162

166

166

a!70

a200

a200

a200

a200

136

133

130

119

133

133

140

140

140

136

130

119

130

113

113

Feb.

119

127

122

127

133

127

133

133

143

184

166

152

133

146

146

156

149

143

143

136

136

146

143

143

156

149

149

143

_

_

-

Month

December ...................................

Calendar year 1946 ......................

Harcft. ............................ . ......

Hay........................................

Septenber ....... ............ .............

Water year 1946-47 ......................

Mar.

159

143

143

149

143

136

136

136

133

127

130

130

133

"176 149

194

234

296

287

278

260

287

251

260

242

278

269

296

316

316

316

Apr.

296

287

278

264

222

247

247

264

292

238

202

187

210

242

269

287

316

316

335

427

382

361

340

273

247

251

260

296

320

325

-

Seoondfoot-days

5,582

4,861

4,969

46,271

4,574

3,983

6,503

8,481

8,278

2,871

2,505

59,061

Hay

316

306

361

361

351

320

330

330

301

301

421

346

311

296

296

301

306

278

278

242

234

218

210

202

187

173

159

162

143

122

116

Maximum

600

468

1,040

200

184

316

427

421

843

97

1,040

June

113

97

130

113

133

95

92

83

66

78

80

72

90

113

113

102

97

102

108

113

130

140

116

95

66

62

58

74

74

66

-

Minimum

97

95

113

53

113

119

127

187

116

70

53

July

72

70

70

66

66

76

72

72

76

72

68

68

68

72

72

68

68

68

64

64

64

60

60

60

56

60

60

56

53

64

60

Au6 .

60

60

68

68

68

68

64

68

796

843

191

234

92

78

66

92

83

97

97

102

156

110

100

85

85

76

90

140

97

83

92

Mean

180

162

160

127

148

142

210

283

267

95.7

142

83.5

162

Sept.

83

78

78

70

74

74

78

78

83

88

88

92

88

83

83

97

88

92

88

88

88

92

92

85

85

76

76

74

78

88

-

Runoff in 

acre-feet

11,070

9,640

9,860

91,780

9,070

7,900

12,900

16,820

16,420

5,690

4,970

117,200

a Ho gage-height record; discharge computed on basis of weather records and records for North Pork 

Virgin River near Springdale, Utah and Virgin River near Littlefield, Ariz.

e Gage reading not representative of average for day; discharge computed on basis of weather 

records and records for North Pork Virgin River near Springdale, Utah and Virgin River near Littlefield, Ariz.
VIRGIN RIVER BASIN 335

Virgin River at Littlefield, Ariz.

Location.- Water-stage recorder, lat. 36°53', long. 113°56', in SW£sw£ se-;. 4, T. 40 N., 

RT~I5~~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. Datura 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 1947. Records of monthly discharge prior 

to October lyaa have been republished in Water-Supply Paper 1049.

Average discharge.- 18 years, 268 second-feet.

Extremes.- Maximum discharge during year, 9,400 second-feet Oct. 29 (gage height, 9.35 

reet); minimum, 55 second-feet Sept. 11.

1929-47: Maximum discharge, 22,000 second-feet Mar. 3, 1938 (gage height, 12.8 

feet, present datum, from floodmarks), 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 except those for periods of fragmentary or no gage-height record, 

which are poor. Many diversions above and several below station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

198

1,660

509

186

a!50

a300

aZ50

a230

a!70

a!60

alSO

a!50

alSO

also

alSO

a!70

212

2OO

152

139

149

If6

124

124

115

118

115

3,460

6,760

1,510

608

Nov.

f429

f345

f326

f290

263

237

224

214

248

208

174

174

237

2,330

1,270

429

299

217

211

189

372

345

220

3,130

fl,320

f875

688

521

396

380

-

Dec.

306

250

210

195

189

189

525

726

404

281

238

253

256

253

259

256

241

228

219

216

216

213

216

216

210

238

701

1,960

705

433

334

Jan.

293

275

262

247

247

256

259

256

247

250

247

250

253

256

244

219

228

225

231

238

244

241

244

238

238

241

241

238

253

234

225

Feb.

216

207

213

210

204

213

256

247

250

265

293

275

250

244

241

241

244

241

228

222

216

207

198

177

156

156

153

168

_

_

-

Month

December. .............................. ...

Calendar year 1946 ......................

January

May.......................... .............

September. ................... .............

Water year 1946-47 ... ..................

Peak discharge.- Oct. 2 (8:3O a.m.) 4.3OO

Mar.

168

165

165

153

153

156

139

133

145

165

165

150

148

145

150

156

180

192

222

287

321

290

337

413

284

241

253

268

309

344

360

Apr.

360

347

300

287

247

231

204

192

192

262

225

204

165

168

189

250

287

306

321

318

350

377

367

296

272

256

247

253

244

231

-

Secondfoot-days

11,136

85,168

2,122

96,925

May

303

307

375

397

416

370

357

334

284

247

337

722

541

482

413

341

296

247

225

204

195

174

133

119

108

92

82

84

82

84

70

Maximum

1,960

6,760

293

293

102

6,760

June

68

70

72

70

82

74

74

74

74

72

72

72

72

72

74

74

74

74

74

72

72

72

70

70

70

70

70

70

70

70

-

Minimum

189

58

153

62

62

July

72

72

72

72

74

8t

73

7T

7T

72

72

72

72

74

93

72

77

74

7*

74,

77

73

77

77

74

77

73

73

8?

8?

8?

Aug.

84

82

84

84

82

82

139

131

89

2,100

689

331

621

179

87

f75

f87

f90

f!04

f!07

159

179

122

f95

f!02

fl!7

fl!7

f!75

300

172

127

Msan

359

233

70.7

266

Sept.

102

f87

f85

f81

f79

f77

f73

f69

67

67

62

63

63

63

65

65

67

67

67

67

69

69

69

69

67

67

69

71

69

67

-

Runoff in 

acre-feet

22,090

168,900

4 29O

4, no

192,200

sec. -ft.; Oct. 29 (2:30 p.m.) 9,400 sec. -ft.; Nov. 14

(3:30 p.m.) 5,140 sec.-ft.; Nov. 24 (5 p.m.) 6,640 see.-ft.; Dec. 28 (7:30 a.m.) 2,790 sec.-ft.; 

Aug. 10 (7:30 a.m.) 3,950 see.-ft.

a No gage-height record; discharge computed on basis of records for related upstream stations.

f Fragmentary gage-height record; discharge computed on basis of wholly or partly estimated gage 

heights.
336 VIRGIN RIVER BASIN

North Fork 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 Creek, and 1.9 miles northeast of Springdale.

Drainage area.- 336 square miles.

Records available.- October 1932 to September 1947. June to November 1923, April 1925 to 

iieptember laaa at site a quarter of a mile upstream from Pine Creek.

Average discharge.- 21 years (1925-31, 1932-47), 106 second-feet.

Extremes ._- Maximum discharge during year, 3,520 second-feet Oct. 1 or 2 (gage height, 8.2 

reet, from floodmark), from rating curve extended above 600 second-feet on basis of 

slope-area determinations at gage heights 4.90 and 11.95 feet; minimum observed, 36 

second-feet Dec. 29.

1925-47; Maximum discharge, 7,000 second-feet Mar. 3, 1938 (gage height, 11.95 

feet, present datum, from floodmarks), by slope-area mtthod; minimum discharge 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^-NWj sec. 22, T. 41 S., R. 10 W., for irrigation in 

vicinity of S^ringdale. Flow may be slightly affected by small diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to Septembe- 1947

Day

1

2

3

4

5

fi

7

R

9

10

11

1?,

13

14

15

Ifi

17

1R

19

20

21

22

23

24

25

2fi 272R

2930

31

Oct.

6520

e310

49

77

106

74

57

63

60

52

49

49

52

49

47

116

52

49

49

49

47

49

47

47

47

47

57

e360

e800

el!5

79

Nov.

63

71

60

54

52

52

49

116

85

37

42

103

178

113

100

52

47

52

49

47

54

63

312

286

57

49

57

68

71

65

-

Dec.

68

65

65

68

68

6160

116

100

68

65

57

63

63

63

60

60

54

57

42

49

54

54

52

57

57

192

284

70

36

38

38

Jan.

48

58

61

45

S3

56

56

58

61

56

58

58

75

70

72

72

48

47

- 53

61

67

67

70

71

68

68

71

68

65

52

54

Feb.

58

61

58

67

72

81

86

84

85

65

73

70

70

76

70

70

66

69

72

63

61

61

64

70

73

84

78

70

-

_

-

Month

December . ..................................

Calendar year 1946 ......................

September. .................................

Water year 1946-47 ......................

Mar.

70

73

78

84

73

59

59

67

70

73

73

78

70

81

87

111

141

143

184

220

227

224

210

196

167

220

216

231

245

276

276

Apr.

286

263

241

241

224

207

222

197

227

227

182

148

173

204

261

258

269

307

306

346

332

348

270

259

247

235

236

235

216

235

-

Secondfoot-days

2 504

2,343

25,772

1,887

1,977

4,382

7,402

8,169

2,889

1,527

1,794

1,347

39 , 845

May

293

386

444

422

388

418

373

321

304

318

421

316

300

336

270

235

233

239

215

195

195

189

177

169

150

153

163

147

137

132

130

Maximum

 z-i n

284

800

75

86

276

348

444

144

63

129

53

800

June

142

137

144

139

114

96

125

123

114

110

108

107

106

104

86

78

76

81

78

85

94

90

82

78

74

66

66

63

61

62

-

Minimum

36

29

47

58

59

148

130

61

37

38

39

36

July

61

58

57

55

54

59

63

63

53

50

50

49

49

54

52

50

50

47

47

47

46

46

43

42

43

43

37

41

41

38

39

Aug.

38

38

44

48

43

43

43

44

129

104

61

90

49

50

48

53

53

50

48

70

85

70

53

48

49

50

68

60

63

52

50

Mean

75.6

70.6

60.9

70.6

141

247

264

96.3

49.3

57.9

44.9

109

Sept.

48

44

43

44

49

49

49

52

49

49

42

43

42

42

48

48

53

50

43

44

43

42

43

43

44

42

39

39

39

42

"

Runoff in 

acre- feet

4,650

51,120

3,740

3,920

8,690

14,680

16,200

5,730

3,030

3,560

2,670

79,030

e Oage readings not representative of average for day; discharge computed on basis of records for 

Virgin River at Virgin, Utah, and at Littlefield, Arlz.

Note.- No gage readings for Springdale Canal Feb. 11 to Mar. 20; discharge estimated.
VIRGIN RIVER BASIN 337

Ash Creek near New Harmony, Utah

Location.- Water-stage recorder, lat. 37°25', long. 113"12', in Ej sec. 7, T. 39 S., P.. 

12 W., 2 miles downstream from Kanara Creek and >, miles southeast of Ne>i Harmony.

Records available.- January 1939 to September 1947 (discontinued).

Extremes.- Maximum discharge during year, 1,430 second-feet Nov. 14 (gage height, 6.14 

feet), from rating table extended on basis of two slope-area measurements; no flow at 

times June to September.

1939-47: Maximum discharge, 1,500 second-feet Sept. 28, 1940, by slope-area 

method, maximum gage height, that of Nov. 14, It'46; no flow at times.

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

116

12

4

4

4

20

5

4

4

3.9

3.9

3.8

3.8

3.7

3.7

8.0

3.6

3.5

3.5

3.4

3.0

2.8

2.6

2.6

3.0

3.2

1QA

721

498

80

50

Nov.

35

26

18

11

fi.2

6.5

5.1

7.1

4.9

5.1

3.5

6.3

280

377

78

35

23

21

19

72

42

29

77

131

48

30

26

26

26

26

-

Dec.

23

20

18

18

17

19

97

30

22

18

17

15

13

12

11

10

9.0

7.1

6.8

6.3

5.7

6.8

6.8

6.5

7.5

21

100

25

10

8

6

Jan.

5

Feb.

> 6

4.6

4.3

4.9

5.1

_

-

Month

October. ...................................

November. ................... .... .........

December . ..................................

Calendar year 1946 ...................

January .................................. .

February. ..................................

March ......................................

April . .......... ...... ..................

May............. .................. .....

June ......... ...................... .....

July. ................................ .....

August. . . . .............. . . ...... .....

September ........ ..... .......... ....

Water year '1946-47 ... ... . ............

Mar.

4.6

4.6

4.3

4.3.

4.3

3.9

3.7

3.5

3.4

2.6

2.6

2.8

2.6

3.0

3.4

4.1

6.8

12

15

19

22

27

31

26

24

22

22

24

26

27

28

Apr.

27

26

22

18

13

9.3

8.2

6.8

7.5

7.5

7.5

7.5

6.8

6.8

10

14

19

23

22

19

18

26

22

18

15

13

11

9.3

7.8

6.8

Second 

fqot-days

1,688.0

1,502.7

592.5

4,192.5

155

162 . 9

389.5

427.8

309.9

11.5

0

2.0

O

5,241.8

May

9.0

14

26

33

33

33

30

22

14

10

29

10

5

4

3

2.3

2.3

2.3

2.4

2.5

2.5

2.5

2.5

2.4

2.2

2.4

2.3

1.9

1.6

1.2

1.6

Maximum

721

377

100

721

31

27

33

1.9

0

1.0

0

721

June

1.1

1.0

.8

.8

.6

.4

.3

.4

.8

.3

.4

.3

.2

.1

.1

.1

.1

.1

.1

.1

1.9

.6

.3

.2

.1

.1

0

0

0

Minimum

2.6

3 '

5.7

0

4.2 z'.e

e.e

1.2

0

O

0

0

0

July Aug.

O

0

0

0

0

0

0

0

0

.2

0

0

0

O

0

0

0

0

.1

.4

.1

.1

.1

0

0

1.0

0

0

0

Mem

54.5

50.1

19.1

11.5

-

5.82

12.6

14 3

io!o

.38

0

.06

0

14.4

Sept.

Runoff in 

acre- feet

3,350

2, 980

1,180

8, 320

307

323

77i

849

615

23

0

4.0

0

10,400

Mote. - No gage-height record Oct. 2-18, Oct. 30 to Nov. 1, Dec. 28 to Feb. 24, Apr. lu-13, 2J-I? 

May 12-24; discharge computed on basis of 1 discharge measurement and records for S<nt' Cl r. Rlv 

above Winsor Dam, near Santa Clara, and Santa Clara River near Central.
338 VIRGIN RIVER BASIN

Santa Clara River near Central, Utah

Location.- Water-stage recorder, lat. 37°24', long, 113°37', in SE-j sec. 11, T. 39 S., 

R. it; W., 150 feet upstream from road bridge, 1 mile southeast of Central, and lj 

miles upstream from Kane Spring Draw.

Drainage area.- 97 square miles.

Records available.- April 1909 to September 1930, November 1938 to September 1947,

Average discharge.- 30 years (1909-30, 1938-47), 19.6 second-feet.

Extremes.- Maximum discharge during year, 426 second-feet Oct. 29 (gage height, 3.90 

feet, from rating curve extended above 100 second-feet by logarithmic plotting; 

minimum, 5.1 second-feet Sept. 25.

1909-30, 1938-47: 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; mininum daily, 2 second-feet on many days in 1939, 1940, 1941.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

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 1946 to September 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.

44

81

18

11

11

11

11

14

14

14

12

11

11

10

9.4

10

11

10

9.0

8.7

8.2

8.0

7.7

7.4

7.2

7.2

15

295

226

80

55

Nov.

45

40

35

32

30

29

28

30

27

26

25

25

30

85

60

35

30

27

26

25

35

30

140

97

57

50

45

40

35

32

-

Dec.

30

28

27

26

25

25

40

30

25

24

24

23

23

23

22

22

21

19

19

20

19

18

18

18

21

26

30

23

16

18

16

Jan.

20

18

15

18

19

19

17

17

17

17

16

16

16

16

14

12

15

16

15

15

14

14

14

14

14

14

14

14

14

14

14

Feb.

14

14

14

15

16

18

18

18

18

20

18

18

18

19

21

21

20

1G

13

13

13

13

12

13

13

14

14

14

-

Month

October. ...................................

November ............................ .....

December ..................................

Calendar year 1946 ............ .........

January .................................. .

February .................. ..............

March. ..................... ...............

April. ..................... ..............

May. ....................... ...............

June ............ ..... ....................

July... ...................................

August ..................................

September. ................. ..............

Water year 1946-47 ...... .......... ....

Mar.

14

16

16

16

16

15

15

15

15

14

14

14

14

14

15

16

18

20

22

23

21

18

16

16

16

16

17

16

18

22

22

Apr.

23

24

26

25

22

21

17

16

18

18

18

18

16

16

20

25

28

34

34

32

36

34

30

28

26

23

22

19

18

20

-

Secondroot-days

1,047.8 

1 *719 251

5,026,9

482

448

520

707

1 , 683

776

435

299 . 6

185.7

8,554.1

May

26

39

60

73

77

80

86

78

70

60

64

56

55

54

49

48

49

48

49

51

53

53

53

51

47

47

47

44

40

38

38

Maximum

295

140

40

295

20

21

23

36

86

37

20

24

7.7

295

June

37

34

36

32

29

27

24

27

28

28

27

24

23

21

20

19

24

24

23

23

32

29

26

24

22

23

22

25

23

20

Minimum

7.2

25

16

3.0

12

12

14

16

26

19

10

6.9

5.4

5.4

Jily

18

17

16

16

16

18

20

16

15

14

15

16

16

16

14

14

13

12

14

12

12

13

13

12

12

11

11

10

11

11

11

Aug.

11

11

10

10

9.3

8.7

9.0

9.7

1224 '

9.3

8.7

11

10

9.3

9.3

9.3

9.3

9.3

8.5

9.0

8.7

8.7

8.5

8.2

6.9

8.5

8.5

8.2

7.7

8.0

Mean

'3

41 '.7

23.2

13.8

15.5

16.0

16.8

23.6

54.3

25 9

14!o

6.1!

23.4

Sept.

7.4

7.7

7.7

7.2

7.2

6.7

6.7

6.7

6.4

6.0

5.6

5.6

5.6

5.8

5.6

5.6

5.8

6.2

6.4

6.2

6.4

6.0

5.8

5.8

5.6

5.4

5.6

5.6

5.6

5.8

Runoff in 

acre- feet

080

2^480

1,430

9,980

956

889

1,030

1,400

3,340

1,540

863

594

368

16,970

:>rd Oct. 3u to Nov. 72, Nov. ?7 to 

for stations on nearby stream.",.

Dec. 15; discharge computed
VIRGIN RIVER BASIN 339

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

Location.- Water-stage recorder, lat. 37°13', long. 113°47', near center of sec. IV, T. 

41 S., R. IV W., 2 miles upstream from Winsor Dam, 2^ miles downstream from Sandy Wash, 

8 miles downstream from Ma,gotsu Creek, and 9 miles northwest of Santa Clara.

Drainage area.- 338 square miles.

Records available.- March 1942 to September 1947.

Extremes.- Maximum discharge during year, 1,500 second-feet Nov. 24 (gage height, 6.25 

reet), by slope-area method; minimum recorded, 6.9 second-feet July 25.

1942-47: Maximum discharge, 2,400 second-feet Aug. 9, 1942, from rating curve 

extended above 200 second-feet "by logarithmic plotting; maximum gage 1 eight, 6.50 feet 

.July 31, 1945; minimum discharge, 3.1 second-feet Sept. 25, 1946.

Remarks.- Records fair. Many diversions above station for irrigation. Flow slightly 

regulated by plants of Southern Utah Power Co.

Discharge, in second-feet, water year October 1946 to September 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.

93

130

30

16

15

15

15

17

17

17

16

14

14

13

12

13

14

13

12

11

11

11

10

10

10

13

25

400

340

200

100

Nov.

65

52

45

44

37

36

35

39

39

35

34

33

65

120

90

60

40

36

34

33

45

37

137

450

80

70

60

55

50

45

-

Dec.

41

39

37

36

35

40

75

45

35

33

32

31

30

29

29

29

29

29

29

29

28

27

26

24

24

32

250

259

150

100

60

Jan.

45

40

38

36

34

33

32

31

30

29

28

27

27

26

26

25

25

24

24

24

23

24

21

24

26

25

28

27

22

24

24

Feb.

24

20

22

24

24

24

25

24

24

31

33

30

27

27

25

24

27

27

25

25

24

24

19

24

21

21

22

23

_

_

-

Month

October. ...................................

November. ........................ .........

December. ..................................

Calendar year 1946 ......................

January. .......... ...................... .

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July.......... .... ........................

August ............................ .........

September ..................................

Water year 1946-47 ......................

Note .- No gage-height record Oct. 2 to Nov

Mar.

22

23

22

22

23

23

23

23

23

22

22

21

21

21

21

21

20

21

50

32

29

28

29

24

23

24

22

21

22

26

28

Apr.

30

33

32

31

29

26

22

21

24

31

25

25

25

25

24

27

30

32

35

31

31

31

33

34

26

25

25

25

18

22

-

May

23

30

45

71

74

72

84

82

70

58

82

71

65

64

62

60

58

53

49

49

66

59

56

52

49

46

46

46

40

40

37

£££. "* 

1,627 400

2,001 450

1,692 259

9,484.2 450

872 45

690 33

732 32

823 35

1,759 84

903 33

472.1 24

516.8 92

350.9 14

12,443.8 450

June

38

35

33

35

33

30

27

26

33

34

35

35

35

33

26

22

26

30

26

26

30

37

37

30

29

31

30

26

20

20

-

Minimum

10

33

24

3.«

21

19

20

18

23

20

8 . J

9.=

9.J

3 .

July

21

22

23

24

21

22

20

18

19

17

If

17

16

16

18

16

14

14

12

12

12

12

11

11

8.7

8.2

9.3

11

11

11

9.9

Aug.

9.9

9.9

11

12

11

12

14

13

27

92

17

17

17

17

17

16

16

16

16

16

16

14

14

14

12

11

14

12

11

11

11

Mean

52.5

66.7

54.6

26.0

28.1

24.6

23.6

27.6

56.7

30.3

» 15.2

9 16.7

) 11.7

' 34.1

Sept.

12

11

11

9.9

12

14

13

12

11

11

11

11

12

11

11

11

11

12

12

13

12

14

12

12

12

12

11

11

11

12

-

Runoff in 

acre- feet

3,230

3,970

3,360

18,820

1,730

1,370

1,450

1,640

3,490

1,800

936

1,030

696

24,700

. 1, Nov. K. 10-12, 14-22, Nov. 24 to Dec. IK. DPC -,n

to Jan. 18, May 14-16, Aug. 11-19: discharge computed on basis "of weather records and rpcordVfor" 

nearby stations.
340 VIRGIN RIVER BASIN

Meadow Valley Wash near Panaca, Nev.

Location.- Water-stage recorder, lat. 37°52', long. 1140 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 Pioche.

Drainage area.- 450 square miles (revised).

Records available.- November 1944 to September 1947.

Extremes.- Maximum discharge during year, 619 second-feet Oct. 1 (gage height, 3.59 feet), 

from rating curve extended above 33 second-feet on basis of two slone-area measurements; minimum daily, 0.2 second-foot on several days, but may have been less during 

period of no gage-height record.

1944-47: Maximum discharge, 946 second-feet Aug. 5, 1946 (gage height, 4.40 fe.et), 

from rating curve extended above 33 second-feet on basis of two slone-area measurements; minimum, 0.1 second-foot July 3, 4, 1945, May 13, Aug. 10, Sept. 23-30, 1946.

Remarks.- Records fair except those for periods of no gage-height reco-d and those above 

5U second-feet, which are poor. Diversions above station for irrigation.

Discharge, in second-feat, water year October 1946 to September 1947

Day

1

2

3

4

&

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

23

25

26

27

28

29

30

31

Oct.

61

32

12

5.4

4.7

5.4

5.0

4.3

4.7

4.7

3.9

3.9

3.9

3.9

3.6

3.9

4.7

4.7

4.3

4.3

4.3

3.9

4.3

4.3

4.3

4.3

5.0

144

240

31

13

Nov.

11

9.4

4.3

7.2

8.3

8.3

7.7

7.7

7.2

5.0

6.3

6.3

11

14

14

11

8.8

8.3

9.4

11

20

13

19

59

20

12

15

15

13

12

-

Dec.

11

11

9.4

10

10

10

13

13

8.8

7.2

6.3

9.4

8.8

10

11

11

7.2

2.6

3.3

5.8

6.7

7.2

7.7

8.3

11

19

34

14

3.9

3.3

2.4

Jan.

2.6

3.9

3.0

3.0

3.9

5.8

4.7

4.3

5.0

.43

5.4

5.4

7.2

2.4

2.6

2.1

1.8

2.4

3.6

5.0

6.3

5.4

6.3

7.2

3. 8

11

11

7.7

4.3

5.4

6.3

Feb.

5.8

7.7

9.4

11

14

15

20

16

14

14

13

a!3

a!3

12

alO

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

\ a.S.0

1

I^ a3.0

J

.7

.4

.4

.7

.4

.4

.7

.4

.3

.3

.3

.3

.7

.4

Apr.

0.2

.2

.2

.2

.2

.2

.3

.2

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.4

.4

.4

.4.-4

Secondfoot-days

296.3

2,134.7

10.0

1,999.9

May

0.

.4

.4

.4

.6

.7

11

11

14

11

11

5.4

1.4

1.0

.8

.7

.8

.7

.8

.7

.6

.6

.6

.7

.7

.6

.6

Maximum

59

34

240

20

.4

.6

240

June

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.6

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.2

.2

.3

.4

.3

Minimum

3.6

4.3

2.4

.1

0.3

.2

.2

.2

-

-

July

0.3

.3

.3

.3

.3

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.6

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

Aug.

0.4

.6

.6

.6

.6

.6

.6

.7

2.6

2.4

.6

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.2

1

1

Mean

20.6

12.5

9.56

58.5

5.10

12.1

1.88

0.27

2.55

.38

.35

.33

54.8

Sept.

\ aO.3

f -

.4

.4

.4

.4

.4

.4

.3

.3

Runoff in 

acre-feet

1,270

73

588

4,240

670

116

15.9

22.4

21.8

19.8

3,970

a Mo gage-height record; discharge computed on basis of weather records and records for nearby 

stations.
BILL WILLIAMS RIVER BASIN 341

Bill Williams River near Alamo, Ariz.

Location.- Water-stage recorder, lat. 34°14', long. 113°35', in SW^NW£ sec. 2, T. 10 N., 

H. 13 W., 1.5 miles downstream from Alamo, 2.0 miles downstream from 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, datum of 1929.

Drainage area.- 4,730 square miles, of which 400 square miles is below confluence of 

santa Maria and Big Sandy Rivers.

Records available.- December 1939 to September 1947.

Extremes.- Maximum discharge during year, 7,230 second-feet Dec. 28 (gage teight, 9.22 

reet); minimum daily, 6 second-feet several days in July, August, and September.

1940-47: Maximum discharge, 38,200 second-feet Mar. 14, 1941 (gage height, 23.0 

feet); minimum, 3 second-feet Aag. 21, 1942, on several days in May and July 1943, and 

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). Ploodmarks indicate a previous stage of at out 46 feet.

Remarks.- Records fair except those above 40 second-feet and those for period of no gageheight record, which are poor. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1943 to September 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.

8

14

30

14

9

9

9

8

8

8

8

8

8

7

8

8

8

7

8

8

8

8

8

8

8

8

8

8

8

26

14

Nov.

13

13

12

12

12

11

11

11

11

11

11

11

11

12

10

13

21

13

10

10

10

10

10

11

10

32

26

15

13

13

-

Dec.

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

12

13

14

21

16

3,720

1,140

293

116

Jan.

92

59

48

45

42

37

37

39

37

36

36

34

34

34

34

34

,34

34

34

36

36

34

34

33

31

29

27

28

27

26

25

Feb.

25

24

24

24

24

23

23

23

23

23

22

22

22

 22

22

21

21

21

21

20

20

20

2O

19

19

19

19

19

-

_

-

Month

October ............... ....................

November ......................... ....... .

December ...................................

Calendar year 1945 ...................

January ....................................

February ........................ .... ....

March ......................................

April ............................. ........

May........................................

June ................... . . .................

July. ................ ... .................

August ................... .................

September ................ .................

Water year 1946-47 ......................

Mar.

19

18

18

18

18

18

18

18

18

18

17

17

16

16

16

16

16

16

16

16

17

16

16

15

15

15

14

14

14

14

13

Apr.

13

13

13

13

12

12

12

12

12

11

11

11

11

11

10

10

10

10

10

10

10

10

10

10

10

10

9

9

9

9

-

Secondfoot-days

307

389

5 , 625

10,450

1,146

605

506

323

264

229

232

591

551

10,768

May

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

3

8

3

8

8

8

3

3

3

8

8

8

8

8

8

Maximum

30

32

3,720

3,720

92

25

1 Q

13

Q

,.

12

87

292

3,720

June

8

8

8

7

7

7

7

7

7

7

7

7

7

7

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

-

Minimum

7

10

12

3

25

19

13

9

7

6

6

6

6

July

8

e

i

i

7

E

8

6

E

7

7

7

8

8

8

8

e

7

7

7

7

7

7

7

7

7

7

7

If

7

e

Aug.

6

6

6

6

6

6

6

87

41

65

29

20

18

18

25

59

22

17

17

15

14

13

12

11

11

10

10

9

9

9

8

Mein

9.9

13.0

181

28

37.0

21 .6

16.3

10 . 8

8 .5

7.6

7.5

19.1

18 .4

29.5

Sept.

292

31

a2O

a!4

a!2

all

alO

a9

a9

a8

a8

a8

-

Runoff in 

acre feet

6O9

772

11,163

20,730

2,270

1 200 liooo

641

524

454

460

1,170

1,090

21,350

Peak discharge.- Dec. 28 (10 a.m.) 7,230 sec.-ft.; Sept. 19 (6 p.m.) 4,650 sec.-ft.

a No gage-height record; discharge computed on "basis of records for Santa Maria River near Alamo.

Note.- River directly connected to gage Dec. 23 to Jan. 24 and part of Aug. 8, 9, 15, Sept. 19; 

discharge for remainder of year computed on basis of recorded variations in ground-water level and 

12 discharge measurements.
BILL WILLIAMS RIVER BASIN 

Santa Maria River near Alamo, Ariz.

Location.- Water-stage recorder, lat. 34°18<, long. 113°31', in NE£SW£ sec. 9, T. 11 N., 

RTTS~W., half a mile upstream from confluence with Big Sandy River and s£ miles upstream from Alamo. Datum of gage is 1,126.6 feet above mean sea level (from riverprofile survey) .

Drainage area.- 1,520 square miles.

Records available.- December 1939 to September 1947.

Extremes . - Maximum discharge during year, 1,610 second-feet Sept. .19 (gage height, 6.70 

feet ) ; minimum daily, 2 second-feet on many days.

1939-47: Maximum discharge, 15,000 second-feet Sept. 6 or 7, 1939, Mar. 14, 1941 

(gage height, 9.85 feet), by slope-area method; minimum, 1 second-feet 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 10 second-feet, which are poor. Several 

diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to Septembe- 1947

Day

1

2

3

4

b

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

S2Y

28

29

30

31

Oct.

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

4

4

Nov.

2

2

2

2

2

2

2

2

2

2

2

2

2

3

3

2

3

3

3

2

2

3

3

3

3

S

4

4

4

4

-

Dec.

4

3

4

4

4

4

4

4

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

7

6

88

15

13

11

Jan.

8

8

Feb.

_

-

-

Month

December ...................................

Calendar year 1946 .................... .

April ..................... ................

May. .......................................

July

September. .................................

Water year 1946-47 ......................

Mar.

6

6

6

6

6

6

6

6

6

6

6

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

Apr.

5

5

5

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

-

Secondfoot-days

222

1,657

123

172

1,559

May

4

4

4

3

3

3

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

Maximum

88

88

66

88

June

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

-

Minimum

3

2

2

2

July

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

14

9

3

2

Aug.

2

2

2

2

2

2

2

3

14

3

3

2

2

2

5

11

5

4

3

3

2

2

2

2

2

2

2

2

2

2

2

Mean

7.2

4.5

5.7

4.3

Sept.

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Z

36

27

13

7

5

4

3

3

2

2

2

2

-

Runoff in 

acre feet

440

3,290

244

119

341

3,O90

Note - River not directly connected to gage except Dec. 28, July 28, Sept. 19; discharge compute 

basis of recorded variation In ground-water level and 12 discharge measurements.
GILA RIVER BASIN 343

Gila River near Gila, N. Mex.

Location.- Water-stage recorder, lat. 33°04'05", long. 108°32'10", .in SE-J-SW^ sec. 19, T. 

14 S., R. 16 W., at Hooker dam site, 1 mile upstream from Mogolion Creek and 7 miles 

northeast of Gila. Datum of gage is 4,655.8 feet above mean sea level (frum river-profile survey).

Drainage area.- 1,870 square miles. 

Records

Average discharge.- 19 years (1928-47), 131 second-feet.

Extremes.- Maximum discharge during year. 1,980 second-feet Aug. 30 (gage height, 6.00 

reet); minimum daily, 21 second-feet June 29, 30, July 1.

1930-47: Maximum 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, 20 second-feet 

June 30, 1946.

Remarks.- Records good. One small diversion above station for irrigatior.

Discharge, in second feet, water year October 1946 to September 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.

64

61

59

66

63

63

59

58

58

58

57

57

57

57

57

54

54

55

57

57

57

55

55

55

55

57

58

69

119

185

232

Nov.

175

142

123

113

109

106

97

95

95

93

90

89

85

84

82

82

82

82

81

81

79

79

79

82

87

85

87

90

90

89

-

Dec.

87

87

84

82

81

79

79

79

79

79

79

78

76

75

75

73

72

71

72

71

68

66

68

69

71

73

92

93

93

87

84

Jan.

81

84

82

69

73

73

73

76

76

76

75

73

75

75

76

73

73

75

73

69

66

66

68

68

66

68

68

68

69

71

66

Feb.

66

66

69

69

68

68

68

68

69

69

69

69

69

69

69

69

69

69

71

71

71

69

68

68

66

69

75

76

_

_

-

Month

October. ...... ............................

November ......................... ....... .

December ...................................

Calendar year 1946 ............ ...

January. ............................. ... .

February. ....................... .... ... .

March. ............................ .........

April ......... ...................... .....

May.............................. .........

June ............................. ... .....

July. ......................................

August ............ ....... ...... .........

September. .................................

Water year 1946-47 ............ .... ....

Peak discharge..- Aug. 22 (11 p.m.) 965 sec

Mar.

73

71

71

71

69

69

71

71

69

68

68

66

66

66

66

65

63

63

61

61

61

63

64

65

66

66

65

65

65

65

65

Apr.

65

66

66

71

73

75

73

69

64

63

66

65

66

69

69

68

64

61

61

61

61

61

60

61

61

61

61

60

60

58

-

Secondfoot-days

2,168

2,833

2,422

 25,440

2,244

1,936

2,059

1,939

1,666

875

942

4,503

2,739

26,326

.-ft.; Aug.

May

54

52

52

52

52

53

54

54

54

63

64

65

64

63

63

61

61

58

54

52

51

51

54

53

51

50

48

43

41

40

39

Maximum

232

175

93

280

84

76

73

75

65

41

57

654

391

654

25 (7 p.m.

June

38

37

32

32

31

31

31

30

29

29

28

27

26

26

25

25

26

41

34

35

34

32

30

28

26

24

23

23

21

21

-

Minimum

54

79

66

20

66

66

61

58

39

21

21

24

49

21

July

21

23

28

27

29

31

29

28

27

27

28

24

24

24

23

25

28

28

57

52

40

34

40

38

33

32

31

28

28

28

27

Aug.

26

24

24

26

28

28

28

28

31

45

45

37

35

49

48

192

81

65

55

68

71

291

408

391

328

214

160

129

289

654

605

Mean

69.9

94.4

78.1

69.7

72.4

69.1

66.4

64.6

53.7

29.2

30.4

145

91.3

72.1

Sept.

391

232

165

129

184

123

100

99

100

82

72

68

63

59

57

54

52

57

60

65

63

59

55

53

51

50

49

49

49

49

-

Runoff in 

acre- feet

4,300

5,620

4,800

50,440 ,

4,450

3,840

4,080

3,850

3,300

1,740

1,870

8,930

5,430

52,210

520 sec. -ft.; Aug. 29 (8 p.m.)

1,610 sec. -ft. j Aug. 30 (8 p.m.) 1,980 sec. -ft.

852060 O - 49 - 23
344 GILA RIVER BASIN

Gila River near Cliff, N. Mex.

Location.- Water-stage recorder, lat. 32°56'SO", long. 108°36'20", in Sj sec. 4, T. 16 S., 

FT17 W., on D. S. Highway 360, \\ miles downstream from Bear Creek, ij miles south of 

Cliff, 2-g miles southwest of Gila, and 6| miles upstream from Mangas Creek. Datum of 

gage is 4,454.5 feet abcve mean sea level, datum of 1929.

Records available.- January 1942 to September 1947. September 1904 to December 1907 at 

site fcjf miles downstream, below Mangas Creek (gage heights only prior to May 22, 1905, 

and during 1907). Records of monthly discharge prior to October, 1938 have been republished, with some additions and revisions, In Water-Supply Paper 1049.

Extremes.- Maximum discharge during year, 4,740 second-feet Aug. 23 (gags height, 7.95 

feet), from rating curve extended above 2,500 second-feet by logarithmic plotting; 

minimum daily discharge, 5.8 second-feet Aug. 8.

1942-47; Maximum discharge, 6,880 second-feet Sept. 12, 1942, fron rating curve 

extended above 2,500 second-feet by logarithmic plotting; maximum gage height, 8.33 

feet Sept. 4, 1946; minimum daily, that of 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 1946 to September 1947

Day

1

?

,1

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

123

24

25

26

27

28

29

30

31

Oct.

80

83

76

94

75

78

76

68

62

58

54

53

58

50

44

43

37

43

53

58

60

54

46

39

45

43

58

70

137

270

267

Nov.

203

166

156

148

148

141

134

127

125

123

117

114

108

104

102

98

100

98

94

94

94

91

89

94

106

100

102

102

102

102

-

Dec.

100

96

96

94

91

82

85

89

85

82

83

83

83

83

82

78

82

82

82

78

83

80

78

78

80

83

108

110

110

102

96

Jan.

96

98

96

82

85

87

89

91

93

91

89

87

87

87

87

87

87

87

89

85

80

78

78

82

80

78

76

78

83

87

85

Feb.

82

82

82

82

78

75

76

75

71

75

71

71

68

65

65

70

60

54

53

66

68

68

64

65

66

68

75

76

_

_

-

Month

December. ...................................

Calendar year 1946 ................ .....

March. .....................................

April.. ....................................

May. .......................................

September ........ .........................

Water year 1946-47 ......................

Mar.

75

78

76

75

75

78

82

83

76

60

49

50

50

50

50

40

37

40

37

43

36

32

41

38

39

40

36

37

38

32

38

Apr.

44

40

34

43

49

52

45

38

33

31

28

34

40

38

38

32

38

33

38

40

30

24

23

21

23

24

32

33

30

34

-

Secondfoot-days

2 332

2,724

24,768.7

1,971

1,042

743.2

2,404

25,689.5

May

27

22

28

29

28

24

26

24

23

29

29

28

33

26

26

31

29

33

36

33

29

39

44

46

48

43

34

33

26

31

31

Maximum

110

610

82

52

225

26

425

703

June

28

28

19

19

20

19

20

20

23

19

13

13

11

11

12

9.3

8.8

225

86

29

19

12

12

12

10

9.9

9.3

8.8

8.8

8.3

-

Minimum

78

5.8

21

8.3

20

5.8

July

8.3

7.8

7.3

7.3

8.8

23

26

17

15

15

17

15

12

12

12

11

9.9

9.9

11

13

16

15

12

10

8.8

8.3

8.3

7.3

7.3

7.3

7.3

Aug.

7.3

6.8

6.8

6.3

6.3

6.3

6.3

5.8

6.8

8.8

9.3

7.8

8.8

320

74

261

91

75

50

73

89

422

574

644

377

248

186

148

268

703

685

Mean

87.9

67.9

70.4

24.8

80.1

70.4

Sept.

425

274

189

143

158

125

104

91

93

76

59

43

34

39

28

21

78

61

41

32

41

40

29

30

28

30

28

24

20

20

-

Runoff in 

ao re-feet

5,400

49,120

4,770

50,970

Peak discharge.- Aug. 23 (12 p.m.) 4,740 seo.-ft.j Aug. 30 (12 p.m.) 1,640 see.-ft.
GILA RIVER BASIN 345

Gila River near Red Rock, N. Mex.

Location.- Water-stage recorder, lat. 32°43'30", long. 108°40'30", in w| sec. 23, T. 18 

S., K. 18 W., 4 miles northeast of Red Rock 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 fragmen- 

 tary, May to uctober 1908, January 1911 to July 1912) and October 1930 to September 

1947 in reports of Geological Survey. November 1908 to December 1910, August 1912 

to December 1931 in reports of State engineer. Records of monthly discharge prior 

to October 1938 have been republished, with some additions and revisions, in WaterSupply Paper 1049.

Average discharge.- 29 years (1909-10, 1912-14, 1918-24, 1927-47), 180 second-feet.

Extremes.- Maximum discharge during year, 3,890 second-feet Aug. 22 (gage height, 11.30 

reet), from rating curve extended above 790 second-feet by logarithmic plotting; 

minimum daily, 3 second-feet Aug. 2-7.

1930-47: Maximum gage height, about 31 feet Sept. 29, 1941 (discharge not determined), from floodmarks; minimum daily discharge, that of Aug. 2-7, 1947.

Remarks.- Records good except those for August and periods of doubtful cr1 no gage-height 

record, which are poor. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

a82

86

78

94

82

84

84

"7276

66

65

62

61

64

53

54

49

47

53

59

66

64

59

45

45

45

47

80

99

226

251

Nov.

226

179

158

146

146

146

137

134

128

130

128

125

119

114

114

112

112

111

111

108

108

106

102

104

114

112

110

112

114

114

-

Dec.

112

112

111

110

110

102

98

102

1O6

99

99

102

99

104

96

98

96

98

98

95

93

96

95

91

96

98

114

120

122

120

114

Jan.

112

116

114

100

99

102

104

104

105

105

104

102

100

100

loo

100

105

104

1O5

102

99

96

95

95

95

93

92

91

95

98

99

Feb.

95

93

95

93

93

89

89

86

85

85

85

84

81

80

77

80

81

72

67

68

78

81

76

77

77

78

84

85

_

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July....... ................................

August .....................................

September. .................................

Water year 1946-47 ................. ....

Mar.

86

81

89

84

88

93

96

95

93

71

65

50

57

58

50

47

48

50

58

65

67

56

53

51

54

42

40

32

39

46

43

Apr.

57

58

49

53

62

71

70

60

57

54

52

52

64

65

67

6261 '

57

46

52

48

32

25

27

32

41

52

45

40

45

-

Secondfoot-days

0 398

3^780

3,206

3,131

2,314 

1,947

' 1,556

858

563

5 815

2^625

29,471

May

38

35

32

38

39

39

35

29

29

35

32

36

39

40

38

40

47

47

35

37

38

47

50

54

58

59

54

49

52

44

33

Maximum

251

226

122

633

116

95

96

71

59

255

82

853

480

853

June

33

35

33

27

24

29

24

23

23

22

19

17

17

11

7

5

9

15

255

53

a30

a21

a20

19

20

16

14

12

13

12

-

Minimum

45

102

91

6

91

67

32

25

29

5

5

3

22

3

July

7

7

13

15

11

17

82

32

25

22

18

18

14

16

30

18

18

41

a!5

a!2

alO

12

13

15

16

14

12

13

12

10

5

Aug.

4

3

3

3

3

3

3

4

4

5

5

6

8

d43

d336

211

d!20

dlOO

99

64

80

645-

446-

853

406

305

198

194

206

755

d700

Mean

77.4

103

79.2

101

82 . 6

51 9

41.2

28 6

18 2

188

87.5

80.7

Sept.

d480

a290

215

148

125

135

108

92

73

66

57

50

36

32

37

26

26

180

59

46

39

39

38

33

a34

37

37

36

29

22

Runoff in 

acre-feet

4,760

7,500

6,360

57,310

6 ,210

4,590

3, 86O 

3,090

2 530

1^700

1,120

11,530 

5,210

58,460

Peak discharge.- June 19 (12:40 a.m.) 985 see.-ft.; Aug. 22 (4:40 p.m.) 3,89O sec.-ft.; Aug. 23 

(7 a.m.) 760 sec.-ft.; Aug. 24 (4:35 a.m.) 2,92o sec.-ft., Aug. 3O (4:50 p.m.) 1,440 sec.-ft.

a No gage-height record; discharge computed on basis of records for stations near Cliff and below 

Blue Creek.

d Doubtful gage-height record; discharge computed on basis of records for stations near Cliff and 

below Blue Creek.
346 GILA RIVER BASIN

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

Location.- Water-stage recorder, lat. 32°39> , long. 108°51', in SEjj3W£ sec. 18, T. 19 S., 

K~. 19 tf., at head of canyon, 1-j 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, June 1927 to September 1947. January 

19^3 to May iya? (discharge measurements only) and June 1927 to September 1931 at 

Virden Bridge, 8| miles downstream. Records of monthly discharge prior to October 

1938 have been republished, with some additions, in Water-Supply Pap«r 1049.

Average discharge.- 20 years (1927-47), 171 second-feet.

Extremes.- Maximum discharge during year, 3,400 second-feet Aug. 22 (gage height, 8.46 

feet); minimum, 2.0 second-feet July 30.

1927-47: Maximum discharge, 41,700 second-feet Sept. 29, 1941 (gage height, 25.78 

feet); minimum, 1 second-foot July 14, 1934.

Remarks.- Records excellent except those for period of fragmentary gage-height record and 

those above 500 second-feet and below 10 second-feet, which are good. Some fluctuation 

at low flow caused by diversions above station for irrigation. Station is above all 

diversions for Duncah Valley.

Discharge, in second-feet, water year October 1946 to September 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.

87

81

78

78

84

75

74

69

66

62

60

59

56

58

52

49

48

43

42

49

50

51

48

39

37

38

38

54

70

165

219

Nov.

210

168

156

143

141

139

133

130

124

126

124

123

119

116

113

111

111

108

108

105

102

102

98

98

106

108

106

108

109

111

-

Dec.

109

108

108

108

106

100

98

100

106

105

103

102

102

103

97

96

92

92

91

91

91

92

92

92

96

97

105

114

117

116

114

Jan.

ill

114

111

105

100

100

10S

105

106

105

105

105

102

100

100

102

108

105

106

103

100

98

98

96

97

97

94

92

94

96

98

Feb.

94

92

91

91

91

88

85

85

84

82

82

77

74

73

69

69

75

69

64

60

66

68

67

63

62

63

69

74

_

_

-

Month

October. ...................................

November . ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March.......... ............................

April ......................................

May. .......................................

June .......................................

July. ......................................

Auguat .....................................

September ..................................

Water year 1946-47 ......................

Peak discharge.- AUK. 22 (9:30 D.m.l 5.400

Mar.

77

74

80

75

75

81

88

90

90

80

69

62

59

58

52

51

50

50

52

56

58

55

51

51

47

43

38

36

31

29

33

Apr.

38

41

42

42

48

53

56

55

52

49

49

47

52

52

52

52

50

51

43

41

40

36

31

27

25

21

26

26

24

22

May

22

19

17

14

18

23

21

19

19

21

21

21

21

21

26

25

24

26

27

23

23

24

28

36

40

37

31

31

32

30

27

forays » 

2 ,07 9 219

3,656 210

3,143 117

26,774 798

3,156 114

2,127 94

1 841 90

1*243 56

767 40

540.0 152

242 . 9 32

5,239.2 765

2,579 483

26,613.1 765

sec. -ft.; Aug. 23 (2 a

June

22

21

18

16

14

11

10

9.0

8.6

8.6

8.2

8.2

8.2

8.2

8.2

7.4

7.0

7.8

152

62

29

21

18

13.

9.0

7.4

7.0

7.0

6.6

6.6

Minimum

37

91

1.8

92

60

29

21

14

6.6

2.6

18

2.6

.m.) 1,620

Jily"

5.8

4.7

4.7

4.7

5.0

5.4

32

22

15

9.6

7.0

5.4

4.4

4.4

5.4

7.8

6.6

7.6

23

10

7.0

5.8

5.4

4.7

4.7

4.1

3.8

3.5

2.9

2.9

2.6

Aug.

2.9

3.2

3.2

3.5

2.9

2.9

2.6

2.6

2.9

2.9

2.9

2.9

2.9

2.9

237

119

120

73

58

74

57

584

589

765

356

335

217

182

198

555

679

Sept.

483

308

212

158

124

133

106

96

77

f61

f55

f49

f43

f38

f33

28

114

130

56

39

30

29

28

26

21

21

21

21

21

18

 _ Runoff in 

*ean acre-feet

67.1 4,120

122 7,250

101 6,230

73.4 53,090

102 6,260

76.0 4,220

59.4 3,650

41.4 2,470

24.7 1,520

18.0 1,070

169* 10,390

86.0 5,120

72.9 52,780

see . -ft . ; Aug . 24

(9 a.m.) 2,490 see. -ft.; Aug. 31 (10 a.m.) 1,340 see. -ft.

f Fragmentary gage-height record; discharge computed from partly estimated gag? heights.
GILA RIVER BASIN 347

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

Location.- Water-stage recorder, lat. 32°41'10", long. 109°03'05", in NE-rNEt sec. 3, T. 

93., R. 32 E. Gila and Salt River meridian NE^NWi 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 September 1947.

Extremes . - Maximum discharge during year, 2,280 second-feet Aug. 30 (gage height, 5.30 

feet) ; no flow many days.

1939-47: 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 above 300 second-feet and below 10 second-feet, which 

are fair, and those for periods of no gage-height record, which are poor'. Diversions 

above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

47

44

43

37

44

42

40

36

33

28

25

24

22

a22

a2O

a!9

al8

16

13

16

12

19

19

14

11

12

13

22

46

102

184

Nov.

192

155

142

132

134

131

126

123

120

117

116

111

107

104

101

98

95

94

92

89

88

87

84

81

81

79

85

87

91

96

-

Dec.

95

95

90

90

78

72

69

66

71

72

64

64

62

* 57

58

55

56

55

53

53

51

52

52

53

57

58

64

71

76

78

81

Jan.

107

114

114

110

104

104

103

103

104

102

101

103

99

94

94

94

97

95

94

90

86

83

81

82

82

81

80

76

76

76

83

Feb.

81

77

75

77

78

76

72

70

64

66

58

54

51

52

50

48

52

48

39

30

30

31

32

29

28

27

29

32

-

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. ..................... ...............

April ......................................

May. .......................................

June. ..............................:.......

July.. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

43

51

53

55

53

51

61

63

64

61

47

40

33

35

33

30

24

24

29

42

45

46

40

35

30

28

26

23

21

23

24

Apr.

24

28

34

34

35

43

45

44

40

38

39

38

41

44

40

40

38

39

37

30

30

26

22

a!5

alO

a5

a7

a5

2.3

1.5

Secondfoot-days

1,043

3 238

2*068

18,995.6

2,912

1,456

1,233

874 . 8

33.0

105.2

0

4,378

1,842.1

19,183.1

May

0.9

.8

1.9

2.7

1.0

.6

1.9

1.7

1.2

1.9

1.2

.6

.6

.4

O

.5

.4

.3

.6

.4

.1

0

0

1.6

2.7

5.0

3.1

.7

.1

.1

0

Maximum

184

192

95

601

114

64

45

5.0

44

O

794

460

794

June

0

0

.1

.2

0

0

0

.1

.2

O

0

0

0

0

O

0

O

0

44

27

20

alO

a3

.6

0

0

0

0

0

0

Minimum

11

79

51

O

76

27

21

1.5

0

0

0

0

0

0

Jul-' Aug.

0

0

o

0

0

o

o

0

0

o

0

0

0

o

98

45

110

43

17

26

29

91

794

710

352

301

155

126

126

676

679

Mean

33.6

66.7

52.0

93.9

52.0

39.8

29.2

1.06

3. 51

O

141

61.4

52.6

Sept.

460

280

186

132

87

81

68

59

53

37

26

a!5

a9

aS

a2

.6

67

168

60

a25

alo

a5

a3

a2

al

a. 5

ao

ao

ao

0

Runoff in 

acre-feet

2,070

 6,420

4,100

37 , 680

5,780

2 ,8 9O

2,450

1,740

65

209

O

8,680

3,650

38,050

a Ho gage-height record; discharge computed on basis of records for stations below Blue Creek and 

near Clifton, Ariz.
348 GILA RIVER BASIN

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

Duncan Valley lies along Gila River in Hidalgo County, N. Mex., 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. Ten canals, listed 

in the following table according to their position from east to west, and several pumps 

divert water from Gila River for irrigation in the valley. The first four canals listed 

divert in New Mexico, the others 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 

on Gila RiveV near Clifton, Ariz.

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 Black-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 1936-47.

Records of daily diversions since January 1936, except for Sunset, Moddle, and Shriver 

Canals for 1939-47, 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 papers. Water-stage recorders 

and rectangular sharp-crested weirs used to obtain records on the canals, and rated pumps 

used to obtain records of pumped water. See pp.363-368 for records of Sunset, Moddle, and 

Shriver Canals for 1947. 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, by each canal during water year 194-6-47 

and calendar year 1946

Canal

Sunset........................

Miscellaneous direct pumping..

Total.......................

Water year 1946-47

24

46

12,020

Calendar year 1946

36

14,720

* Total diversion by Moddle Canal for the water year 1946-47 was 2,800 

acre-feet, of which 22 acre-feet were for Shriver Canal and are included 

In the figures for Shriver Canal. Shriver Canal record published elsewhere in this report does not include the 22 acre-feet diverted froir 

Moddle Canal.

t Total diversion by Moddle canal for the calendar year was 3,957 acrefeet, of which 44 acre-feet were diverted for Shriver Canal and are included In the figures for Shriver Canal. Shriver Canal record published 

elsewhwere in this report does not include the 44 acre-feet diverted from 

Moddle Canal.

Combined monthly discharge of canals diverting from Gila River in Dvjncan 

Valley, N. Mex.-Ariz., during water year

October 1946 to September 1947 __

Month

Calendar year 1946. ....

Water year 1946-47.....

Discharge in second-feet

Maximum

30.9 

32.3 

45.8

72.4

7.1 

41.0 

28.8 

20.4 

20.4 

47.1 

14.9 

82.0 

63.4

82.0

Minimum

11.8 

3.3 

8.9

0

0 

11.4 

6.0 

0 

6.4 

4.1 

1.0 

.5 

10.5

0

Mean

23.0 

12.4 

33.3

20.3

2.4 

26.1 

16.5 

7.3 

14.0 

10.9 

5.3 

26.1 

22.1

16.6

Diversions in 

acre-feet

1,410 

741 

2,050

14,720

ISO 

1,450 

1,020 

433 

860 

651 

329 

1,610 

1,320

12,020
OILA RIVER BASIN 349

Gila River near Clifton, Ariz.

Location.- Water-stage recorder, lat. 32°57'55", long. 109°18'25", In NE^SE^ sec. 25, 

T. 53., R. 29 E., at highway bridge on U. S. Highway 666, 6 miles upstream from 

San Francisco River, 7 miles south of Clifton. Datum of gage Is 3,3?5.3 feet above 

mean sea level, datum of 1929, unadjusted.

Drainage area.- 4,040 square miles.

Records available.- November 1910 to July 1918, published a's Gila River at Guthrie,

March 1928 to October 1933, May 1935 to June 1947 (discontinued). Records of monthly 

discharge prior to October 1938 have been republlsh^d In Water-Supply Paper 1049.

Average discharge.- 22 years (1911-17, 1928-33, 1935-46), 240 second-feet.

Extremes.- Maximum discharge during period October 1946 to June 1947, 189 second-feet 

Nov. 1 (gage height, 6.02 feet); minimum, 10 second-feet June 16.

1910-18, 1928-47: Maximum discharge, 28,200 second-feet Sept. 29, 1941 (gage 

height, 20.12 feet); minimum, 9 second-feet July 8, 1939.

Remarks . - Records excellent. Diversions for irrigation above station. 

all Duncan Valley diversions.

Station is below

Discharge in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

U

9

10

11

13

14

Ib

16

17

18

19

20

21

26

Oct.

65

55

55

55

51

54

53

52

47

45

40

36

37

32

28

28

28

30

28

30

30

30

32

33

30

27

27

38

45

50

121

Nov.

172

163

142

128

125

128

125

119

114

114

114

110

108

105

101

97

96

94

96

94

92

92

91

87

83

83

83

86

88

93

-

Dec.

97

97

98

94

93

84

76

76

75

77

76

70

69

67

66

65

63

62

61

59

61

60

63

63

64

70

73

73

76

81

83

Jan.

88

110

111

108

108

105

107

105

105

1U7

103

104

104

100

100

100

104

108

108

107

105

101

101

100

103

105

105

101

97

97

97

Feb.

94

89

86

83

86

84

81

77

75

73

74

71

65

58

58

59

56

61

57

50

74

40

38

38

38

36

38

40

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

March

May. .......................................

September ................... ..............

The period ...............................

Mar.

44

50

56

60

61

59

60

62

66

67

69

59

51

46

44

43

42

39

37

36

42

46

47

43

41

38

36

34

33

30

30

Apr.

28

30

31

34

35

34

38

41

41

40

39

38

38

41

42

40

38

37

36

32

26

23

24

22

20

18

17

17

17

17

Second 

foot-days

1 312

3 223

2,292

24,519

934

_

.

May

17

16

17

17

17

17

17

17

17

16

16

17

17

16

16

16

15

15

15

15

15

15

15

15

15

14

13

13

13

12

12

Maximum

98

423

32

_

-

June

12

12

12

12

12

13

14

14

14

14

13

13

12

12

11

11

11

12

12

15

32

28

18

14

13

13

13

12

12

12

Minimum

5<

1!

J_

.

-

July Aug.

Mean

J 42.3

) 73.9

' 67.2

> 15 4

-

-

Sept.

Runoff in 

acre-feet '

4,550

48,620

2 920

.

29,920
350 GILA RIVER BASIN

Gila River near Solomonsville, Ariz.

Location.- Water-stage recorder, lat. 32°52', long. 109°31', in SE^NE^ sec. 31, T. 6 S., 

K. a« K., 0.6 mile dovmstream 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.

Kecoras available.- April 1914 to September 1932, October 1940 to September 1947. Pebruary iy^a to October 1933 and May 1935 to September 1940 at site 3 miles upstream 

above intake of Brown Canal, published as Gila River below Bonita Creek, near 

Solomonsville. Records of monthly discharge for both sites prior to October 1938 

have been republished, with some revisions and additions, in Water-Supply Paper 1049. 

Records of monthly discharge above intake of Brown Canal diversion available June 

1914 to September 1947, and prior to October 1938 published as Gila River at head of 

Safford Valley, near Solomonsville, in Water-Supply Paper 1049.

Average discharge (combined flow).- 33 years (1914-47), 500 second-feet.

Extremes (combined flow).- Maximum discharge during year, 9,260 second-feet Aug. 30 (gage 

height, Y.bU reet); minimum, 27 second-feet July 13.

1914-47: Maximum discharge, about 100,000 second-feet Jan. 19, 1916, by slope-area 

method; minimum, 27 second-feet July 14, 1939, and July 13, 1947.

Remarks.- Records excellent except those after Aug. 9, which are good. Diversions above 

station for mining and irrigation. No diversions above station for irrigation in 

Safford Valley except Brown Canal. Combined discharge table on page shows sum of 

discharge at this station and of Brown Canal, and is the amount of water available at 

head of Safford Valley. Records of water analyses for the water year 1947 are given 

in Water-Supply Paper 1102.

Cooperation.- Record for Brown Canal furnished by Gila Water Commissioner.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

11

12

16

21

26

'60

Oct.

174

151

140

140

132

132

127

127

124

114

112

102

100

98

91

89

89

86

89

99

89

91

91

93

98

93

93

107

216

612

311

Nov.

292

274

249

229

236

239

239

229

219

216

216

207

197

194

194

194

194

191

191

191

188

185

185

188

191

200

194

188

182

188

-

Dec.

194

194

191

188

188

185

179

174

171

171

174

165

165

165

159

162

156

156

154

151

148

151

148

146

143

146

182

210

232

210

194

Jan.

191

200

207

2OO

188

185

191

191

191

194

194

197

197

197

200

200

197

204

200

200

200

194

194

191

194

191

191

188

185

185

182

Feb.

179

176

171

171

171

171

168

159

156

154

154

148

143

135

130

132

130

130

132

127

120

112

110

107

107

107

107

114

_

_

-

Month

December ...................................

Calendar year 1946 ......................

April.. ....................................

May. .......................................

July .......................... ............

September. ..................... ...........

Water year 1946-47 .......... ...........

Peak discharge.- Aug. 23 (9 a.m.) 6,100 se

Mar.

122

124

132

135

137

140

132

130

135

140

143

137

122

107

105

102

100

102

105

100

102

107

107

110

102

100

96

96

93

93

91

Apr.

89

89

96

100

102

100

100

102

98

98

98

98

100

100

105

105

100

96

96

93

91

91

91

89

86

84

82

82

76

72

Secondfoot-days

5,352

57,860

3 549

6,4O9

56,744

May

68

66

66

62

62

62

64

64

66

86

76

76

72

70

62

62

64

62

58

58

56

56

54

52

52

47

43

45

43

47

47

Maximum

232

734

935

2,330

June

43

43

43

40

58

42

43

45

43

40

35

33

33

33

37

57

37

45

52

82

72

68

51

38

35

35

37

37

33

Minimum

89

143

28

30

59

30

Jul"

32

37

35

33

33

43

43

49

43

38

37

32

30

30

30

33

35

35

37

76

56

43

49

122

72

56

51

47

40

38

35

Aug.

37

35

33

38

37

33

38

57

393

94

123

208

189

138

170

300

202

366

192

144

213

226

2,330

1,510

1,050

1,500

f700

304

289

1,410

1,280

Mean

2O 9

173

159

44 3

214

155

Sept.

785

490

f327

f257

216

166

144

16O

258

349

199

166

f!38

f!08

76

71

71

935

399

229

179

114

92

84

76

68

66

66

59

61

Runoff in 

acre-feet

10,620

114,800

2 63o

12,710

112,600

c.-ft.; Aug. 26 (5)30 a.m.) 3.84O sec. -ft.; Aug. 30

(2:30 a.m.) 4,loO sec.-ft.; Aug. 30 (lo p.m.) 9,250 sec.-ft. 

f Computed on basis of partly estimated gage-height record.
GILA RIVER BASIN 351

Combined discharge, in second-feet, of Gila River near Solomonsville and Brown Canal near 

Solomonsville, Arlz., water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

i5

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

174

151

140

140

132

132

128

128

125

115

116

107

105

103

96

92

89

86

89

89

89

91

91

93

98

93

93

111

221

615

311

Nov.

292

274

249

229

236

239

239

229

219

216

216

207

197

194

194

194

194

191

191

191

188

185

185

191

194

200

194

192

187

193

-

Dec.

 196

194

191

188

188

185

179

174

171

171

174

165

165

165

161

164

158

158

156

154

152

155

152

150

147

150

186

214

236

214

197

Jan.

191

200

207

200

188

185

191

191

191

194

194

197

197

197

200

200

197

204

200

200

200

194

194

191

194

191

191

188

185

185

182

Feb.

179

176

171

171

171

171

168

159

156

154

154

148

143

136

130

132

130

130

132

127

120

112

110

107

107

107

107

114

-

_

-

Month

December. ..................................

Calendar year 1946 .....*.................

March. .....................................

May.........................................

September . .................................

Water year 1946-47 ......................

Mar.

122

124

132

135

137

140

135

132

135

140

143

137

129

117

114

112

110

109

107

102

104

109

109

112

104

102

100

98

95

95

93

Apr.

92

92

98

102

104

102

102

104

100

ion

100

100

102

102

107

107

102

98

98

96

94

93

91

89

86

84

82

82

76

72

Secondfoot-days

4 243

5,410

58,553

3 922

2 857

1 377

13 799

6,497

57,289

May

68

66

66

64

64

63

65

64

66

86

76

76

72

70

62

62

64

62

60

60

56

56

54

52

52

49

46

46

43

47

47

Maximum

236

739

82

942

2,340

June

43

43

43

42

41

43

43

45

43

40

58

34

33

33

57

37

39

46

52

82

72

78

68

53

41

36

35

37

37

34

Minimum

185

147

28

182

93

59

30

July

33

37

35

33

33

43

43

49

43

38

37

32

30

30

30

33

35

35

37

76

56

45

50

122

72

56

51

47

42

39

35

Aug.

37

35

33

38

37

33

38

57

400

101

126

211

196

144

179

308

210

376

199

150

220

233

2,340

1,520

1,060

1,510

706

308

294

1,420

1,280

Mean

175

160

194

44 9

217

157

Sept.

790

492

327

257

216

166

144

160

258

352

201

171

143

113

80

74

74

942

408

234

184

119

97

88

81

72

68

66

59

61

Runoff in 

acre- feet

420

10,730

116,200

12,890

113,600
GILA RIVER BASIN

Diversions from Gila River in Safford Valley, Ariz.

Canal, at lower end, is 25.8 miles upstream from station at Calva

Records of monthly diversion for all canals except Fourness, Port 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 ir records for 

1914-15 and 1920-31). Records of combined monthly diversions in Safford Valley, and annual 

diversions by each canal are available for 1936-47, and have been republished for the 

period prior to October 1938 in Water-Supply Paper 1049. Also republishec? in Water-Supply 

Paper 1049 are records of monthly discharge prior to October 1938 for the individual 

canals, except for Colvin-Jones Canal.

Records of daily diversions since 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 were used by water commissioner to obtain records of diversions 

by canals, and rated pump was 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 diversion by each canal and combined monthly diversion by canals as a group have been compiled and furnished by Gila Water Commissioner.

Annual diversions, in cre-feet, by each canal during water year 19*6-47 

and calendar year 1946

Canal

Brown. ........................

Graham .....................

Curtls ...................... .

Colvin-Jones ..................

Miscellaneous direct pumping..

Total. ......................

Water year 1946-47

19

62.640

Calendar year 1946

27

69.910

monthly discharge of canals diverting from Gila R 

Ariz., during water year October 1946 to Sept

Gila River in Safford Valley, 

;ember 1947

Month

Calendar year 1946........

July........................

September. ..................

Water year 1946-47. .......

Discharge in second-feet

Maximum

144 

157 

186

400

58.7 

64.0 

121 

107 

69.1 

108 

125 

490 

363

490

Minimum

73.5 

35.4

155

0

0 

8.0 

39.9 

32.8 

20.4 

32.8 

30.5 

32.6 

47.5

O

Mean

102 

85.9

171

96.6

14.0 

33.5 

85.1 

69.9 

46.4 

45.4 

45.4 

199 

135

86.5

Diversions in 

acre-feet

6,290 

5,110

10,510

69,910

861 

1,860 

5,230 

4,160 

2,850 

2,700 

2,790 

12,260 

8,020

62,640
GIL A RIVER BASIN

Gila River at Safford, Ariz.

Location.- Water-stage recorder, lat. 32°50'50", long. 109°4S'55", in SW^SW^- sec. 5, T. 

7 5 . , R . 26 E., at highway bridge, 1 mile north of Safford and 4j miles downstream from 

from San Simon Creek. Datum of gage is 2,880.07 feet above mean sea level, datum of

19S9.

Praia age area.- 10,460 square miles.

Records available.- June 1940 to June 1947 (discontinued).

Extremes . - Maximum discharge during period October 1946 to June 1947, 1,920 second-feet 

June 18 (gage height, 5.40 feet); no flow parts of May and June.

1940-47: Maximum discharge, 33,000 second-feet Sept. 30, 1941 (gage height, 13.0 

feet); no flow at times during summer months.

Remarks - Records good except those for period of fragmentary gage-heigh*-. record, which 

are 1'air. Many diversions above station for irrigation and mining. Canals diverting 

in Safford Valley above station are Brown, Tidwell, Pourness, San Joss, Montezuma, 

Union, and Graham. Those diverting below station are Smithville, Dodge-Nevada, Curtis, 

Fort Thomas, and Colvin- Jones .

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

fi

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

??

?3

24

25

26

27

28

29

30

31

Oct.

80

59

49

43

48

46

34

IS

re

4

6

7

23

24

23

25

28

29

46

47

37

18

15

20

20

16

£5

48

102

562

269

Nov.

221

211

189

186

201

201

201

192

183

186

189

189

192

192

186

186

180

166

134

138

131

103

92

92

85

90

96

99

96

88

-

Dec.

88

88

75

73

72

63

52

51

40

37

34

32

28

40

38

34

29

27

19

23

32

23

27

26

30

34

47

96

122

131

114

Jan.

168

171

201

195

189

183

186

195

192

177

171

171

192

192

192

186

183

192

198

186

174

166

161

166

145

134

127

131

124

140

168

Feb.

168

161

153

150

155

150

143

138

136

120

127

120

122

114

109

112

112

105

107

105

96

87

81

80

 81

78

77

77

_

-

-

Month

December. ..................................

Calendar year 1946 ......................

May. ........... ......... ................

September .................... ..........

The period .......... ...................

Mar.

85

87

87

94

92

96

92

96

97

90

77

81

73

54

45

46

36

12

14

13

14

30

33

29

29

36

27

20

13

10

15

Apr.

21

18

21

29

38

45

40

39

30

25

26

26

26

25

24

26

30

34

37

49

54

52

48

43

36

41

45

40

37

32

-

Secondfoot-days

1,777

4,595

1,625

35,159.1

5,356

1,623

363.1

199.3

-

-

May

26

26

25

24

18

15

18

18

27

38

39

39

33

8

4

2

0

o

o

o

0

o

0

1

z

.1

0

0

0

0

0

Maximum

562

221

131

1,480

201

168

97

54

39

185

-

-

June

0

0

.2

0

0

0

0

0

0

.2

0

0

.5

.7

0

.6

.4

185

11

.6

0

.1

0

0

0

0

0

0

0

0

-

Minimum

4

85

19

0

124

77

10

18

O

0

_

-

-

July Aug.

Mean

57.3

156

52.4

96.3

173

117

52.4

34.6

11.7

6.64

_

-

-

Sept.

Runoff in 

acre-feet

3,520

9,310

3,220

69,720

10,620

6,470

3,220

2.O6O

720

395

_

-

39,540

f Fragmentary gage-height record; discharge computed from partly estimated gage height.
354 GILA RIVER BASIN 

Gila River at Calva, Ariz

Location.- Water-stage recorder, lat. 33°11'10", long. 110°13 I 10", in sec. 5, T. 3 S., 

R. 21 E., unsurveyed, on San Carlos Indian Reservation, at railroad Iridge at head of 

San Carlos Reservoir, 1-| 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 1947. Records of monthly discharge prior to 

October 1938 have been republished in Water-Supply Paper 1049.

Average discharge'.- 18 years, 288 second-feet.

Extremes.- Maximum discharge during year, 3,200 second-feet Aug. 24 (gage height, 6.20 

feet); no flow parts of June, July, August.

1929-47: Maximum discharge, 27,900 second-feet Oct. 1, 1941 (gage height, 11.82 

feet); no flow for short 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. Diversions above station for irrigation, metallurgical treatment 

or ores, and municipal uses.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?.

X

4

5

fi

7

8

9

10

11

1?

13

14

15

Ifi

17

1R

19

20

?1

??

?3

?4

25

?fi n

?R

?9

30

31

Oct.

38

47

36

24

18

21

12

9.2

7.4

6.4

5.6

5.1

4.7

4.7

4.0

4.2

3.8

3.6

3.8

4.0

5.1

6.4

7.4

5.1

4.5

4.5

4.7

5.3

7.8

30

363

Nov.

172

163

155

140

144

144

144

132

128

124

132

128

121

114

114

114

114

117

114

97

93

90

79

68

70

62

53

47

58

55

-

Dec.

49

51

53

47

38

37

37

30

24

22

19

19

22

21

19

21

20

19

18

20

20

18

18

19

19

19

48

36

53

73

87

Jan.

82

151

159

172

167

163

163

172

159

159

155

151

151

163

167

163

163

167

176

176

167

159

155

151

151

140

144

140

136

132

140

Feb.

147

144

136

140

136

140

136

121

110

107

104

100

107

110

110

110

107

107

107

104

107

104

97

90

90

87

90

87

-

-

-

Month

December. ..................................

Calendar year 1946 ........... ..........

March.. ....................................

May.......................... . ..........

September. ... ... . ......... . ..........

Water year 1946-47 . . . ... ..........

Man

87

87

90

90

90

90

93

90

87

87

84

76

76

65

55

47

42

40

36

31

30

26

26

24

24

23

21

21

20

19

18

Apr.

19

18

17

21

18

19

17

16

14

15

15

13

13

13

13

13

13

12

12

13

16

21

22

24

25

21

17

17

20

18

-

Secondfoot-days

996

27,410.7

2,321.4

22,999.0

May

17

14

10

10

a9

a8

a7

a7

a7

a8

a8

8.1

10

10

11

7.0

5.1

3.6

3.0

2.1

1.9

3.6

2.8

1.9

1.5

.8

.6

.4

.2

.1

.1

Maximum

172

87

1,120

588

1,390

June

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

22

15

2.6

.4

0

0

0

0

0

0

0

0

-

Minimum

47

18

0

.8

0

July

0

0

0

0

0

0

0

0

14

4

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

-

Aug.

0

0

0

0

7.9

0

0

0

0

43

7.2

1.8

13

18

1.9

41

29

84

96

50

4.5

119

318

1,390

538

456

521

232

160

297

897

Mean

110

32.1

75.1

77.4

63.0

Sept.

588

261

160

99

50

21

11

16

35

24

78

39

11

5.2

3.4

2.7

14

96

380

240

118

35

15

7.8

3.6

2.5

1.8

1.4

1.2

.8

-

Runoff in 

aore-feet

1,400

1,980

54,380

4,600

45,620

a Mo gage-height record; discharge computed on basis of adjoining record and recorded range In 

stage.
GILA RIVER BASIN 355

San Carlos Reservoir at Coolidge Dam, Aric.

Location.- Water-stage recorder, lat. 33°10'30", long. 110°31'45", in NW^ sec. 17, T. 3 

Si. , R. 18 E. , unsurveyed, at Coolidge Dam on Gila River. Datum of gage is at. mean 

sea level (Indian Irrigation Service bench mark).

Drainage area.- 12,890 square miles.

Records available.- November 1928 to September 1947. Record of elevation and contents 

at end of each month prior to October 1938 has been republished, with some revisions, 

in Water-Supply Paper 1049.

Extremes.- Maximum contents during year, 18,800 acre-feet Feb. 8-10 (elevation, 2,395.53 

feet); no storage May 14-21, May 30 to Aug. 8; minimum elevation, less than 2,383.12 

feet, bottom of intake.

1928-47: Maximum contents, 819,200 acre-feet Mar. 18, 1942 (elevation, 2,502.34 

feet); minimum (since appreciable storage was attained in 1929), no storage part of 

each summer in 1939, 1946, 1947.

Remarks.- Reservoir is formed by concrete multiple-dome dam; dam completed Oct. 25,

1928; storage began Nov. 15, 1928. Total usable capacity, about 1,200,000 acre-feet 

between elevations 2,383.4 feet (sill of outlet gages) and 2,523.0 feet (top of 

automatic spillway gates in raised position) above mean sea level. Dead storage below elevation 2,383.4 feet, 10,830 acre-feet according to 1937 survey. Figures given 

herein represent usable contents. A correction of -480 acre-feet applied to the usable 

capacity table because the elevation of sill of outlet gates has been corrected since 

original table was made. Water is used for 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 1946 to September 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.

15,400

15,400

15,400

15,400

15,400

15,400

15,400

15,400

15,300

15,100

14,900

14,800

14,600

14,500

14,400

14,200

14,000

13,900

13,800

13,600

15,400

13,000

12,700

12,400

12,200

11,900

11,600

11,400

11,200

11,000

11,400

Nov.

11,600

11,700

11,800

11,800

12,100

12,200

12,400

12,600

12,800

13,000

13,100

13,200

13,400

13, 600

13,800

14,000

14,200

14,300

14, 400

14,500

14,500

14,700

14,800

14,800

14 . 900

14,900

14,900

15,000

15,000

15,100

-

Dec.

15,100

15,100

15,200

15,200

15,200

15 , 200

15,300

15,300

15,300

15,300

15,300

15,300

15 , 200

15,200

15,200

15,100

15 , 100

15,000

14,800

14,600

14,300

14,100

13,900

13,600

13,400

13,200

13,000

12,800

12 , 800

12,800

12,700

Jan.

12,700

12,700

12,800

13,000

13,200

13,300

13,300

13,400

13,400

13,400

13,400

13,500

13,500

13,500

13,600

13,600

13,600

13,600

13,700

13,900

14,200

14,500

14,900

15,200

15,500

15,800

16,100

16,400

16,600

16,900

17,100

Feb.

17,400

17,700

17,900

18,200

18,400

18,600

18,700

18,800

18,800

18,800

16 , 700

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,500

18,500

18,500

18,400

18,400

18,400

18,300

_

_

-

Mar.

18,300

18,200

18,100

18,000

18,000

17,900

17,800

17,800

17,700

17,700

17,700

17,600

17,600

17,600

17,400

17,400

17,200

17,000

16,800

16,600

16,400

16 , 100

15 , 900

15 , 600

15 , 300

15,000

14,700

14 , 300

14,000

13,600

13,200

Apr.

12,800

12,400

11,900

11,400

10,900

10,400

9,970

9,550

8,990

8,520

8,040

7,500

7,020

6,540

6,030

5,560

5,080

4,500

3,940

3,360

2,760

2,240

1,670

1,250

970

770

640

540

480

420

-

May

400

360

320

280

230

190

160

120

80

80

80

50

40

0

0

0

0

O

0

0

0

190

EDO

190

180

140

80

50

400'

0

June July Aug.

0

0

0

0

0

0

0

0

1,340

1,410

1,420

1,280

1,160

1,200

1,210

1,210

1,320

1,390

1,480

1,660

1,680

1,510

1,800

4,660

5,670

5,940

6,860

6,760

G , r^7o

6,860

8,520

Sept.

9,740

10,100

10,000

9,790

9,440

8,940

8,780

8,260

7,730

7,180

6,760

6,490

6,060

5,590

5,130

4,640

4,220

5,170

6,500

6,950

7,080

6,860

6,520

6,120

5,710

5,310

4,910

4,520

4,120

3,710

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31. ...................

Calendar year 1946 .......

Sept . 3O ....................

Water year 1946-47. ......

Elevation 

(feet)t

2 393 62

2 393 51

2,392.19

-

2 394 65

: !:l

2,386.31

-

Contents 

(acre-feet)

12,700

-

3,710

-

Change in contents 

during month 

(acre-feet)

-2,400

+600

-4,810

-11,490

t Elevation at 12 p.m.

* Elevation below sill of lowest outlet gats.
356 GILA RIVER BASIN

Glla River below Coolldge Dam, Arlz.

Location.- Water-stage recorder and Parstiall flume, lat. 33° 10'15", long. 110°31 "45", in 

swi sec. 17, T. 3 S., R. 18 E., unsurveyed, 2,200 feet downstream from Coolldge Dam. 

Datum of gage Is 2,309.94 feet above mean sea level (Indian Irrigation Service bench 

mark).

Drainage area.- 12,890 square miles.

Kecpras available.- April 1914 to September 194V. 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. Records of monthly discharge 

prior to October 1938 have been republlshed, with .some additions and revisions, In 

Water-Supply Paper 1049.

Average discharge,- 16 years (1901, 1904, 1914-28), 582 second-feet (unregulated); 19 

years (ia<ia-4Y), 288 second-feet (regulated).

Extremes.- Maximum discharge during year, 551 second-feet Mar. V (head on flume, 2.65 

reet); minimum daily, 0.4 second-foot several days in July.

1914-28 (unregulated): 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.

1928-47 (regulated): Maximum discharge, 1,240 second-feet July 31, 193V (head on 

flume, 4.35 feet); no flow at Coolidge Dam at times in most years when gates in dam 

were closed.

Remarks.- Records excellent. 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 since Nov. 15, 192? (see preceding 

page). Record includes flow of Warm Springs which enters between dam E-nd gage and 

which averaged 0.53 second-foot, varying from 0.33 to 0.67 foot, based on seven discharge measurements made during year.

Discharge, in second-feet, water year October 1946 to September 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.

1.0

1.0

1.0

1.0

1.0

1.0

.8

.8

60

83

68

66

68

72

74

72

70

70

70

78

77

158

131

137

130

133

133

112

109

10S

110

Nov.

110

109

109

109

48

67

64

59

61

65

66

66

66

56

2.0

2.0

39

68

66

68

68

68

71

70

68

66

61

39

39

36

-

Dec.

34

40

39

38

37

37

36

36

37

38

37

38

41

49

65

58

64

79

123

121

130

132

140

152

146

158

173

158

146

156

140

Jan.

Ill

118

123

113

115

132

164

164

169

164

158

164

169

154

146

160

167

160

154

95

34

28

27

25

24

24

24

28

32

28

27

Feb.

26

25

46

48

50

62

92

111

130

140

176

132

130

131

132

128

127

125

127

127

126

128

130

131

128

128

127

128

_

_

-

Month

October ....................................

November ...................................

December. ..................................

Calendar year 1946 .................. ...

January. ................................. .

February. ..................................

March. .....................................

April. ...................... .............

May. ......................................

June .......................................

July... ....................................

August ...................... ..............

September ................... ..............

Water year 1946-47 ....... ..............

Mar.

126

129

127

131

130

129

185

111

110

110

111

111

109

110

110

113

111

141

142

150

157

155

164

167

160

195

195

202

206

206

206

Apr.

206

218

249

254

252

246

237

227

222

222

227

220

220

220

218

215

183

224

220

220

213

204

204

162

113

82

59

47

37

30

-

Secondfoot-days

2,196.6

1,886.0

2,678

31,235.2

3,201

3,091

4,509

5,651

145.3

22.8

20.2

1,749.0

5,092

30,241.9

May

24

19

16

12

10

8.8

7.3

6.0

4.8

5.4

4.8

4.2

4.2

2.8

2.4

1.6

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

Maximum

158

110

173

233

169

176

206

254

24

.8

1.0

256

225

256

June

'0.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.6

.6

.6

.8

.8

.8

.8

.8

.8

.6

.6

.6

.8

.8

.8

.8

.8

-

Minimum

0.8

2.0

34

.4

24

25

109

30

.8

.6

.4

.6

132

.4

July

0.8

.8

1.0

.8

1.0

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.8

.8

.8

.6

.6

.6

.6

.4

.4

.6

.4

Aug.

0.6

.6

.6

.8

1.0

.8

1.0

1.4

1.0

.8

1.0

61

91

1.6

1.6

1.6

1.4

1.4

1.4

1.4

20

57

80

152

175

215

256

256

170

40

156

M^-rn

70.9

62.9

86.4

85.5

103

110

145

188

4.69

.76

.65

56.4

170

82.9

Sept.

152

167

175

173

190

222

222

235

225

213

177

177

175

175

173

171

173

175

164

146

152

152

152

152

146

134

132

132

134

136

-

Runoff in 

acre-feet

4,360

3,740

5,310

61,940

6,350

6,130

8,940

11,210

288

45

40

3,470

10,100

59,980
GILA RIVER BASIN 357

Gila River at Winkelman, Arlz.

Location.- Water-stage recorder, lat. 33°00'10", long. 110°45'55", in NW^NE^ sec. 13,

T. b B., R. 15 E., If miles north of Winkelman, 2 miles upstream from San Pedro River, 

and 29 miles downstream from Coolidge Dam. Datum of gage is 1,921.03 feet above mean 

sea level, datum of 1929.

Drainage area.- 13,280 square miles.

Records available.- September 1941 to September 1947. September 1917 to June 1918 (prior 

to closing or Uoolidge Dam), and December 1928 to February 1935 (discharge measurements only) at site 1.5 miles downstream. Record of monthly discharge September 1917 

to June 1918 has been republished in Water-Supply Paper 1049.

Extremes.- Maximum discharge during year, 24,300 second-feet Aug. 8 (gage height, 13.68 

feet), from rating curve extended above 3,000 second-feet on basis of slope-area determination at gage height 18.40 feet; no flow parts of June, July, August.

1941-47: 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 above 400 second-feet, which are fair, and those 

below 10 second-feet, which are good. Large diversions above station for irrigation 

but none between Coolidge Dam and this station. Flow regulated by San Carlos Reservoir (see p. 355).

Discharge, in second-feet, water year October 1946 to September 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.

12

9

7

5

4

4

4

4

4

4O

75

66

65

66

70

74

72

70

72

72

83

.77

138

124

128

125

129

130

114

104

96

Nov.

105

104

106

104

105

60

68

66

66

68

72

74

72

68

65

26

18

32

63

65

66

66

68

81

75

66

65

60

46

43

-

Dec.

41

40

43

42

41

41

41

40

40

40

41

40

40

41

49

61

54

61

90

112

119

127

127

151

146

160

183

174

148

154

151

Jan.

127

110

119

117

110

114

140

157

157

166

154

160

163

168

143

148

160

160

151

154

65

42

36

33

30

29

29

28

32

34

31

Feb.

30

29

29

42

46

49

66

83

112

119

129

132

116

116

117

118

118

117

114

119

117

119

119

119

126

123

128

128

_

-

Month

October. ...................................

November . ........................ .........

December . ..................................

Calendar year 1946 ......................

January ......'..............................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. ......................... .......

Water year 1946-47 ......................

Mar.

124

127

122

123

124

124

127

176

111

106

106

105

106

loo

101

99

101

100

123

127

133

142

141

154

158

189

177

177

180

180

180

Apr.

180

180

206

229

226

226

222

209

206

196

199

196

196

196

196

193

190

183

199

199

196

190

171

180

132

100

79

60

46

38

-

Secondfoot-clays

2,043

2,043

2, 638

35,623.8

3,267

2,780

4 143

5 219

'276.0

5*6

5.4

4,559.6

5,001

31,980.6

May

31

25

20

19

17

14

12

9.5

7.4

15

12

9.5

7.4

5.6

7.8

6.0

4.8

4.0

2.8

2.8

18

11

2.8

2.4

2.0

1.6

1.6

1.0

1.0

1.0

1.0

Maximum

138

106

183

1,020

168

132

189

229

31

1.0

4.0

2 '400 230

2,230

June

1.0

1.0

.8

.6

.4

.4

.4

.2

.2

.2

.2

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

Minimum

4

18

40

.4

28

29

99

38

1.0

0

o

o

121

0

Jul-'

0

0

0

0

0

0

0

o

0

0

0

o

0

0

0

0

0

0

0

0

0

1.4

4.0

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

0

o

0

2.23QA

46)

10/

5.6

109

416

99

24

31

18

13

12

10

24

18

42

83

134

171

219

228

346

184

87

*Mean

65.9

68. 1

85* 1

97.6

105

99.3

134

174

8*90

.19

.17

147

167

87.6

Sept.

134

134

154

154

154

186

215

202

199

199

166

154

154

154

154

151

151

181

400

251

149

147

145

145

145

129

125

123

121

125

Runoff in 

acre-feet

4,050

4,050

c OTr*

70,650

6,480

5,510 

8, 22o

10,350

547

11

11

9,040 

9,920

63,420
GILA RIVER BASIN

Gila River at Kelvin, Ariz.

Location - Water-stage recorder, lat. 33°06 I 15", long. 110°58'45", in NW^-NW^ see. 12, 

T . 4 S . , R. 13 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 1,743.27 feet above mean sea level, datum of 1929.

Drainage area.-. 18,000 square miles.

Records available - January 1911 to September 1947. Records of monthly discharge prior 

to October 1938 have been republished in Water-Supply Paper 1049.

Average discharge. - 17 years (1911-28), 759 second-feet (revised, unregulated); 19 years 

(19H8-4Y), aya second-feet (largely regulated) .

Extremes . - Maximum discharge during year, 10,000 second-feet Aug. 8 (gage height, 8.67 

f ee t ) f minimum , 0.3 second-foot Aug. 4-6.

1911-47: 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, that of Aug. 4-6, 1947; also less than 1 second-foot in summers of 

several years prior to 1929.

Remarks . - Records good except those for period 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. Flow regulated by San Carlos Reservoir (see 

p. 355); no other regulation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?.

7,

4

5

6

7

8

9

10

11

1?.

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

f49

50

59

47

39

35

32

30

29

26

69

71

67

71

72

76

76

72

72

72

80

85

125

124

131

128

131

134

132

115

111

Nov.

114

112

112

110

108

74

74

78

72

85

80

82

76

78

85

59

41

35.

59

74

78

80

80

116

118

89

84

85

71

64

~ ,

Dec.

60

54

56

57

56

51

51

51

50

51

54

57

54

56

56

76

84

80

93

130

135

143

148

160

168

183

214

271

201

174

168

Jan.

152

140

142

145

140

142

150

174

171

177

177

177

182

185

174

163

168

177

171

165

133

80

67

58

54

48

46

45

48

53

50

Feb.

48

47

46

46

59

59

63

84

103

126

137

163

141

139

134

138

135

132

131

133

135

135

141

140

141

140

146

146

«

_

-

Month

December. ................................

Calendar year 1946 ......................

April. .....................................

May. .......................................

September .................... .............

Water year 1946-47 ......................

Mar.

138

135

136

134

138

140

138

172

138

128

122

120

117

116

115

112

116

117

135

135

140

147

148

153

155

153

171

174

180

182

182

Apr.

185

185

194

214

220

220

217

207

197

194

194

194

194

191

188

185

182

177

182

188

191

185

177

174

152

117

78

62

51

43

-

Secondfoot-days

J,242

51,832

fi,710

43,890.3

Hay

36

30

26

22

19

17

15

13

12

12

17

13

10

7

6

16

9.0

5.8

4.2

3.4

28

34

16

10

7.5

a6

a5

a4

a3

a2

a2

Maximum

271

2,190

185

182

1,260

2,570

June

a2

a2

1.5

1.5

1.5

1.5

1.2

1.2

.9

.9

.2

.5

.5

.2

.2

1.2

.9

.9

.9

.9

.2

.2

.2

.2

.2

1.2

.9

.9

.9

.9

"

Minimum

50

1

118

.3

July

0.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.5

1.5

1.5

18

15

10

6.2

4.4

3

1.8

1.2

.9

Aug.

0.6

.6

.6

.3

.3

2.2

1.8

1,590

2,570

1,410

212

f81

649

420

238

759

425

216

f83

f54

123

205

267

338

199

169

274

267

433

564

301

fc'an

105

142

224

120

Sept.

f257

173

162

162

155

169

348

816

272

192

169

142

135

132

126

124

129

211

184

1,260

184

155

148

142

139

135

126

124

121

118

~

Runoff in 

acre-feet

6,430

102,800

13,310

87,060

a No gage-height record; discharge computed on basis of adjoining record.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
GILA RIVER BASIN 359

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

Location.- Water-stage recorder, lat. 33°06'00", long. 111°14 I 50", in SWi;-NW£ sec. 8, T. 

4 S., R. 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 1.00 foot 

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.

Records available.- July 1923 to September 1947 (head on crest of dam only). Records of 

diversions to S'iorence-Casa Grande Canal available January 1928 to September 1947. 

Records of monthly discharge of Florence-Casa Grande Canal prior to October 1938 have 

been republished, with some additions, in Water-Supply Paper 1049.

Extremes.- Maximum head on dam during year, 2,3 feet Aug. 8; no flow over dam greater 

part of year.

1923-47: 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 

uranae 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 cf flood runoff. 

Many diversions above station for irrigation. Flow regulated at Coolldge Dam except 

for periods of tributary inflow below that dam. San Pedro River contributes ma)or 

portion of unregulated inflow.

Cooperation.- Records collected and prepared in cooperation with Office cf Indian Affairs.

Daily mean head, in feet, water year October 1946 to September 1947

Day

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.

0

O1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

.01

.06

.04

.01 (t).01 (t) 0

0

Nov.

(t)0

0

0

0

(t)0

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0

0

o

.06

0

0

0

0

0

-

Dec.

0

0

0

o

0

o

0

0

0

0

0

o

0

o

0

o

.01

o

.01

.02

o

0(t)

0

.01

(t)

.02

.05

0

0

0

Jan.

0(t)

0

0

o

o

6

.01

0

0

o

0(t) (t)

o

0

0

0

0

0

0(t)0

0

0

0

0

0

0

0

o

Feb.

0

o

0

o

0

o

0

0(t).02

o

.02

.05

.01

0

0

o

0

0

(t)

0

0

(t)0(t)

(t) (t)

.01

_

-

Mar.

0

0

0

0

0

0 (t)

0

(t)

0

0

0

0

0

0

0

t

t

t

t

(t) w0

o

0

(t) w0

0 (t) (t)

Apr.

0

0(t).02 (t)

(t) (t)

0

o(t)

0(t)

o

0

0

0

0

0(t)0

0

0

0(t)

.02

0

0

0

0

0

-

May

0

0

o

0

o

0

o

0

0

0

o

0

0

0

0

0

0

0

0

0

.03

0

0

0

0

0

0

0

0

o

0

June July

0

0

o

0

0

0(t)

o

0

0

o

0

0

0

o

0

0

0

0

0

0

0

0

o

0

o

0

o

0

o

0

Aug.

0

o

0

o

0

0

0

.15

.61

.40

(t)o

.11 (t)

0

.13 (t) (t)

0

0

.01

.04

.02

.04 (t)

0(t) (t)

.05

.02

.09

Sept.

(t)

0

0

0 - o

0

.02

.3

.01 (t)

0

0

0

0

0

o

0

.02

.01

.15

(t)0

(t)0

0

0

0

0

0

0

t Flow over crest for short time, but mean head for day was less than 0.01 Too*;. 

Note.- Water below crest during months left blank and on days shown by zero.

Monthly div Plorence-Casa Qrande Canal, 

r 1946 to September 1947

Month

Calendar year 1946.....

September. ...............

Water year 1946-47. ....

Secondfoot - 

days

2,041 

2,359 

2,986

42,817

3,952 

2,866 

4,008 

4,952 

351 

0 

14 

7,646 

6,180

37,355

Discharge in second-feet

Maximum

128 

115 

260

1,160

180 

141 

172 

215 

82 

0 

10 

880

880

Minimum

16 

36 

48

0

48 

41 

102 

43

0 

0 

0 

0 

108

0

Mean

65.8 

78.6 

96.3

117

127 

102 

129 

165 

11.3 

0 

.5 

247 

206

102

Runoff 

in 

acre -feet

4,050 

4,680 

5,920

84,920

7,840 

5,680 

7,950 

9,820 

696 

0 

28 

15,170 

12,260

74,090

Water sluiced 

above flume 

(acre-feet >*

5.4

11 

34

427

31

24 

37 

27 

12io

'0 

133 

151

465

t Included in first four 

852060 0-49-24

:olumns of table.
360 GILA RIVER BASIN

Gila River below Gillespie Dam, Ariz.

Location.- Water-stage recorder above left end of Gillespie Dam, lat. 3r°13'45", long. 

Iiyu 4i>'30", in SE^NE-^ 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.

Records available.- August 1921 to September 1947 (river only). Record? for Gillespie 

Canal May 193b to September 1947; for Enterprise Canal June 1935 to September 1939 

(discharge measurements only) and October 1939 to September 1947. Records of monthly 

discharge of Gila River and Gillespie Canal prior to October 1938 have been republished 

along with combined monthly flow of river and canals June 1935 to September 1938 (previously unpublished) in Water-Supply Paper 1049.

Extremes.- Maximum discharge during year, 4,390 second-feet Aug. 9 (height over crest of 

dam, 1.23 feet, adjusted for drawdown caused by sluicing); no flow most of year.

1921-47; 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 fair except those Aug. 10-18, which are poor, records include

 now over crest and through sluice gates of Gillespie Dam but do not include flow in 

Gillespie and Enterprise Canals which divert from river immediately ebove dam. Other 

diversions above station for irrigation. Plow of Gila River and tributaries above 

this station is regulated by San Carlos Reservoir on Gila River (capacity, about 

1,200,000 acre-feet), by a series of reservoirs on Salt River (capacity, 1,755,000 

acre-feet, revised), by Bartlett and Horseshoe Reservoirs on Verde River (capacity, 

247,400 acre-feet), and by Lake Pleasant on Agua Fria River (capacity, 178,000 acrefeet).

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 SE-q-NE^ sec. 28, T. 2 S., R. 5 W., 200 feet downstream from head gates. 

Records of diversion by Enterprise Canal obtained through use of water-stage recorder 

in SW-c-NE^ sec. 28, T. 2 S. , R. 5 W., 600 feet downstream from intake. 

Discharge, in second-feet, water year October 1946 to Sept

Day

1

2

3

4

5

6

7

8

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

100

80

65

28

14

5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

19

28

38

32

17

4

0

27

14

28

14

20

28

14

-

Dec.

28

38

5

0

0

0

0

0

O

0

0

0

0

0

O

0

7

12

14

19

7

8

220

210

90

17

80

100

80

80

80

Jan.

65

65

50

50

50

65

38

20

10

10

10

7

14

20

10

10

11

1

7

25

13

7

2

0

0

O

3

2

0

1

0

Feb.

1

7

10

7

3

0

0

0

1

14

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

_

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

Bay........................................

June .......................................

July. ......................................

August .....................................

September . ................................

Water yesr 1946-47 ... ..................

Mar.

0

0

0

0

0

1

2

1

O

0

0

0

0

0

0

O

O

0

0

O

0

0

0

0

0

O

0

0

0

0

0

Apr.

Second 

foot-days

342

283

1,095

15,636

566

43

4

0

0

0

0

3,500

551

6,384

May

Maximum

100

38

220

2,530

65

14

2

0

0

0

0

1, 880

501

1,880

June

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

July Aug.

0

0

0

0

0

0

0

0

1,880

500

100

200

200

30

200

300

40

50

0

0

O

0

0

0

0

0

0

0

0

0

0

Mean

11.0

9.4

35.3

42.8

l!s

.1

0

0

0

0

113

18.4

17.5

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

O

0

0

0

O

0

501

50

0

0

0

0

0

0

0

0 -

0

Runoff in 

acre-feet

678

561

2,170

31,010

1,120

85

7.9

0

0

0

0

6,940

1,090

12,650

Note.- Leakage through the sluice gates Dec-. 26 to Jan. 17 and Aug. 18 to Sept. 31 estimated as 

4OO acre-feet and is not included"in these records.
GILA RIVER BASIN 361

Combined discharge, In second-feet, of Glla River below Olllesple Dam and of Glllesple and 

Enterprise Canals at Glllesple Dam, Arlz., water year October 1946 to September 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.

225

274

255

239

202

184

171

171

176 172

152

144

141

143

145

145

142

139

140

136

131

135

135

128

124

124

124

125

128

132

134

Nov.

133

136

136

142

144

140

141

141

141

134

130

125

131

146

151

153

181

190

200

194

178

161

152

187

175

191

177

184

191

178

-

Dec.

192

202

165

156

155

152

149

146

150

154

154

152

150

149

151

152

166

172

174

179

167

165

322

210

162

179

251

268

249

251

250

Jan.

232

232

217

216

215

230

202

181

172

171

171

167

175

181

171

171

171

156

164

185

173

164

155

151

148

149

156

155

151

152

154

Feb.

156

166

171

166

161

157

155

151

152

169

150

147

147

143

142

141

141

141

141

145

148

149

149

148

151

148

148

147

_

-

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April .....................................

May. .......................................

June .................... ... ..............

July. ......................................

August ...:.................................

September. .................................

Water year 1946-47 ......................

Mar.

147

147

148

150

151

154

156

155

153

151

151

148

146

149

149

149

144

139

141

143

142

140

139

137

135

141

146

143

139

137

132

Apr.

129

126

124

124

124

123

124

125

125

129

130

133

133

130

129

130

128

128

126

121

120

117

112

113

113

109

103

104

103

103

-

Seccndfoot-days

4,916

4,763

5,694

60,325

5,488

4,230

4,502

3,638 

2 , 889

1 , 816

1,422

5 , 623

0, * ?fll C.OJ.

48,262

Bay

109

109

108

107

107

106

99

97

92

83

100

101

101

95

94

95

92

92

93

83

85

87

82

87

85

83

81

84

85

85

82

Maximum

274

200

322

2,730

232

171

156

133

109

77

56

2,000

722

2,000

June

77

75

71

70

72

74

75

67

71

72

65

61

58

65

66

68

66

61

56

53

54

50

50

46

46

45

45

45

46

46

-

Minimum

124

125

146

41

148

141

132

103

81

45

41

49

57

41

July

46

45

43

42

43

46

47

44

43

42

41

43

43

44

47

46

46

45

44

46

56

48

48

50

47

46

47

48

49

50

47

Aug.

51

49

52

53

57

54

59

88

2,000

531

100

208

242

102

232

361

113

142

110

104

88

92

91

84

82

83

82

83

82

76

72

M>an

159

159

184

165

177

151

145

121

93.2

60.5

45.9

181

109

132

Sept.

72

74

73

65

63

60

57

61

61

120

117

72

69

66

65

63

70

61

75

722

262

196

161

119

96

72

72

76

74

67

Runoff in 

acre-feet

9,750

9 450

ll!290

119,700

10, 890

8^930

7,220

5,730

3,600

11,' 150

6,510

95,730

Monthly diversion, it second-feet, by Glllesple and Enterprise Canals at ailles->ie Dam, 

water year October 1946 to September 1947

Month

Calendar year 1946..

July. .................

September. ............

Mater year 1946-47..

Glllesple Canal

Maximum

167

148

155

188

152 

147 

143 

116 

92 

63 

38 

92 

197

197

Minimum

112 

113 

0

0

140 

130 

120 

88 

67 

26 

24 

0 

46

0

Mean

136 

136 

135

112

146

139 

137 

105 

77.0 

41.0 

29.1 

53.9 

79.2

101

Runoff in 

acre-feet

8,370 

8,080 

8,320

81,010

8,990 

7,700 

8,400 

6,280 

4,740 

2,440 

1,790 

3,320 

4,710

73,140

Enterprise Canal

Maximum

14 

16 

17

18

15 

14 

16 

17 

19 

23 

20 

31 

24

31

Minimum

6.6 

12 

.2

.2

8.5 

8.5 

0 

14 

14 

14 

9.9 

0 

7.1

0

Mean

11.4 

13.5 

13.0

10.6

1Z.5 

10.9 

8.56 

15.8 

16.2 

19.5 

16.8 

14.7 

11.8

13.7

Runoff in 

acre-feet

702 

801 

798

7,650

770 

606 

526 

940 

994 

1,160 

1,040 

901 

702

9,940
362 GILA RIVER BASIN

Gila River near Dome, Ariz.

Location.- Water-stage recorder, lat. 32°45 I 40", long. 114°25 I 10", in SW-J- sec. 4, T. 83., 

R~!2T~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 1947. January 1903 to April 1329 (monthly discharge only) published in Water-Supply Paper 918. Records of monthly discharge prior 

to October 1938 have been republished in Water-Supply Paper 1049.

Extremes.- Maximum discharge during year, 380 second-feet Aug. 9 (gage height, 5.25 feet); 

no flow entire year except Aug. 9-11.

1929-47: 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.- Records poor. Diversions above station for irrigation. Flow above station

regulated by reservoirs at and above Gillespie Dam (see p. 360). No flow during calendar 

year 1946.

Discharge, in sacond-feet, 1946-47

1

Month

August ......................

Water year 1946-47. .......

1. ............

Secondfoot -days

212 i

212

Maximum

119

119

119

93

1

Minimum

0

0

Mean

6.8

.6

Runoff in 

acre-feet

420

420

Note.- No flow except as shown.
GILA RIVER BASIN 

Sunset Canal near Virden, N. Wex.

363

Location.- Water-stage recorder and 6-foot concrete Parshall flume, lat. 32 0 39'20", 

long. 108°56iOO", in NW£ see. 17, T. 19 S., R. 20 W. , 4.5 miles southeast of 

Virden.

Records available.- October 1914 to September 1915, July 1922 to September 1931, and 

January 1939 to September 1947 in reports of Geological Survey. January 1936 to 

December 1938 and Way 1942 to September 1947 in files of Gila Water Commissioner, 

appointed by U. 8. District Court for Arizona. Records of monthly discharge prior 

to October 1938 have been republished, with some additions and revisions, in WaterSupply Paper 1049.

Extremes.- Maximum daily discharge during year, 40 second-feet on Aug. 31; no flow at 

times .

1939-47: Maximum daily discharge, 58 second-feet Apr. 12, 13, 1940; no flow at 

times.

Remarks . - Records good. Canal diverts from right bank of Gila River in SWj-NWr sec. 

 HI, T. 19 S., R. 20 W., for irrigation in Virden Valley. No diversion between intake and station.

Discharge, in second-feet, water year October 1946 to September 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.

0

0

4.1

6.5

10

9.0

8.7

8.4

8.4

12

9.2

9.5

9.5

9.8

9.8

9.0

6.0

5.5

5.1

1.8

5.8

.6

. 

4.2

4.1

.1

.6

4.6

4.5

4.5

7.2

Nov.

3.2

1.2

4.9

7.0

2.8

.7

.7

.6

.4

.4

.4

.3

.5

.7

.7

.7

.7

.7

.7

.8

.8

.8

3.3

6.0

6.7

14

8.6

8.4

6.0

3.0

-

Dec.

3.0

3.2

6.9

3.6

7.2

9.1

6.7

10

10

13

15

16

16

16

16

17

16

16

16

16

17

17

17

17

17

17

18

18

18

21

19

Jan.

0

0

o

0

0

0

1.5

2.3

2.3

2.3

2.3

2.3

2.5

.7

0

0

0

0

0

4.3

5.8

5.8

5.8

1.4

0

0

O

0

0

3.1

5.5

Feb.

8.4

7.7

6.5

6.5

6.5

6.5

6.2

7.9

9.4

7.7

11

10

5.6

0

0

0

0

4.9

12

15

16

16

17

17

17

17

17

16

_

_

-

Month

October. ...................................

Novembe r ......................... .........

Decembe r ........................... ..... .

Calendar year 1946 ......................

Janu 

Febr 

Marc

ary. .......... ........................

uary. ................... ..............

h . . . . .... .................. ......

April. ............................. ....

May. . .......... ................... ... .

June ...... . . . ... . . .... ... ......

July.. ....... .... . ... .... .... .......

August ............. ... ..... .......

September. .......... .... . ... ..........

Water year 1946-47 ...... ......... ...

Mar.

8.2

0

0

0

2.0

5.1

2.8

5.1

5.3

5.1

4.8

4.2

2.8

0

0

.9

6.6

4.2

6.0

7.0

g6.2

g5.5

g9.0

E13

g!4

13

12

13

a. s

4.8

5.3

Apr.

5.5

5.2

.9

3.5

2.1

0

4.0

5.5

5.5

3.9

1.4

2.4

O

2.8

4.6

4.0

4.2

4.4

4.4

4.2

4.2

4.4

4.8

11

9.0

4.8

5.5

5.8

5.5

5.3

-

Secondfoot-days

179.1

85.7

428.7

3,172.3

47.9 

264.8

175.4

128.8

297.3

281.7

164.2

415.9

341.5

2,811.0

May

5.1

4.8

5.1

5.3

5.5

5.5

5.1

4.8

4.8

0

0

2.3

6.4

14

14

14

13

14

14

13

13

14

14

15

16

16

15

14

14

5.6

10

Maximum

12

14

21

36

5.8 

17 

14

11

16

24

15

40

37

40

June

13

13

13

14

12

9.8

8.4

7.2

7.4

6.7

6.5

6.2

6.0

6.0

6.0

5.5

4.4

4.8

20

24

14

13

14

12

8.4

6.5

5.8

5.3

4.4

4.4

-

Minimum

0

z'.t

o

0

o

0

0

0

4.4

1.2

.1

0

0

July

4.0

2.8

2.7

2.5

2.8

3.4

9.7

15

14

10

7.2

5.3

3.4

3.2

3.2

5.1

4.8

g3.8

g!4

11

7.4

5.3

4.4

3.7

3.7

3.2

2.2

2.2

1.6

1.4

1.2

Aug.

1.0

.9

1.0

1.3

1.0

.7

.7

.6

.8

.7

.8

.9

.8

.7

21

26

15

17

20

16

14

20

33

33

33

33

27

16

14

26

40

M<*an

5.78

5 2.86

13.8

8.69

1.55 

9.46

5.66

4.29

9.59

I 9.39

5.30

13.4

11.4

7.70

Sept.

37

25

10

9.2

8.2

9.0

9.0

8.4

8.2

13

16

16

15

6.6

12

16

9.2

0

5.1

3.4

2.2

7.8

11

13

12

13

15

12

7.2

12

Runoff in 

acre-feet

355

170

850

6,290

95 

525 

348

255

590

559

326

R25

677

5,580

g Computed from graph "based on gage readings.
364 GILA RIVER BASIN

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

Location.-' Water-stage recorder and 3-foot concrete Parshall flume, lat. 32°41', long. 

109°02', in NE^SE^ sec. 31, T. 18 S., R. 21 W., a quarter of a mile east of New 

Mexico-Arizona State line and 2.5 miles west of Virden.

Records available.- February 1939 to September 1947.

Extremes . - Maximum daily discharge during year, 16 second-feet Aug. 22; no flow at times. 

1939-47: Maximum daily discharge, 17 second-feet Sept. 16, 1939; no flow at times.

gation.

Discharge, in second-feet, water year October 1946 to September 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.

0

o

0

0

4.8

4.6

0

O

0

0

0

0

7.0

3.3

0

0

0

o

0o'

0

0

0

0

0

0

0

0

0

0

0

Nov.

0.1

o

1.1

6.0

4.7

.5

.4

.3

.1

.2

.3

.2

.2

.2

.3

.3

.3

.3

.2

.2

.2

.3

.5

2.6

2.2

6.0

5.9

3.6

2.7

2.6

-

Dec.

0.6

.2

.2

.1

.2

.4

.1

0

0

1.2

.5

1.3

0

0

0

.1

4.2

15

8.3

0

0

0

0

0

9.3

8.2

2.0

0

0

0

0

Jan.

0

0

0

0

0

0

0

.1

.3

.2

.3

.3

.2

.3

0

0

0

0

0

0

.3

0

0

0

0

0

0

0

0

0

1.4

Feb.

1.6

.7

0

0

0

0

0

0

2.2

.3

0

.5

0

0

0

0

0

0

8.2

9.1

6.3

1.2

0

0

0

0

0

0

_

_

-

Month

October. ................................

November. ........................ .........

December. ..................................

Calendar year 1946 .................. .

January ..................................

February ............................. .....

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

0

0

0

o

0

0

0

0

7.0

5.4

0

0

0

0

0

0

4.8

6.6

8.0

8.1

.8

0

o

0

0

0

0

0

0

3.9

2.3

Apr.

0

0

O

0

0

0

0

1.7

0

0

0

0

0

0

1.4

0

0

0

0

0

0

0

0

0

1.5

5.2

5.7

0

0

0

-

Secondfoot-daya

19.7

42.5

51.9

480.1

3.4

30.1

46.9

15.5

41.3

45.1

32.3

96.5

66.0

491.2

May

o

o

0

0

0

3.1

3.0

0

0

0

0

0

0

5.2

6.1

4.3

3.5

0

0

0

0

3.0

5.8

5.0

0

0

0

.3

0

0

2.0

Maximum

7.0

6.0

15

15

1.4

9.1

8.1

5.7

6.1

7.8

4.6

in

15

16

June

6.4

6.3

.6

0

0

.1

0

0

.5

4.6

4.9

0

0

0

0

O

0

0

0

7.8

7.5

1.8

.1

0

0

0

0

0

2.2

2.3

Minimum

C

C

C

C

C

C

C

C

C

C

C

C

C

July

2.8

0

0

0

1.9

1.2

0

0

2.8

3.6

.3

3.1

.1

0

0

.6

1.8

0

0

0

0

2.1

.7

1.1

4.6

4.3

.5

0

0

.8

0

Aug.

3.1

0

0

0

0

0

1.8

.1

.7

.2

0

0

1.2

.4

0

6.6

10

6.8

0

.1

3.0

16

7.9

1.2

.6

13

11

5.2

aO

aO

7.6

Mean

0.64

1.42

1.67

1.32

.11

1.08

1.51

.52

1.33

1.50

1.04

3.11

Z.20

1.35

Sept.

12

7.3

.1

.2

a.l

.5

1.6

aO

.1

2.7

15

10

.9

0

0

0

1.8

.1

0

0

O

0

0

6.0

4.4

2.6

.5

.1

0

0

Runoff in 

acre-feet

39

84

103

952

6.7

60

93

31

82

89

64

191

131

974

No gage-height record; discharge computed on basis of records for station near Virden.
GILA RIVER BASIN 365

Sunset Canal wasteway near Virden, N. Mex.

Location.- Water-stage recorder and 3-foot concrete ParshalL flume, lat. 32°41 I 40", 

long. 109°02'55", in W^SE^ sec. 31, T. 18 S., R. 21 W., just below irtake, at New 

Mexico-Aricona State line, and 2f miles west of Virden.

Records available.- February 1939 to September 1947.

Extremes.- Maximum daily discharge during year, 0.4 second-foot Dec. 18; no flow most 

of year.

1939-47: Maximum daily discharge, 11 second-feet Feb. 23, 1940; nc 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 ftation on 

Sunset Canal, above State line.

Discharge, in second-feet, water year October 1946 to September 1947

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.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

.1.1

.1.1 -

Dec.

0.1

o

0

0

0

o

0

0

0

0

0

0

o

0

0

0

.1

.4

.Z

0

o

o

o

0

.2

.Z

0

0

0

0

0

Jan.

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

o

0

0

0

0

.1

Feb.

0.2

0

o

o

0

0

0

0

.1

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

_-

Month

December . ............. ....................

Calendar year 1946 ......................

Janu 

Febr

May. ......................................

September. ............... .................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

1.2

2.3

.1 

.3

.3

O

.1

2.4

Hay

Maximum

0

.1

.4

.4

.1 

.2

0

.2

O

0

.1

.4

June

0.2

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

u

0

0

.1

0

0

0

0

0

0

0

0

0

0-

Minimi 

cc

c

c

c 

c

c

c

c

c

c

c

c

c

July Aug.

Mean

0

.01

.04

.01

0 

.01

0

0

0

.01

0

0

0

.01

Sept.

0

o

0

0

0

0

0

0

0

0

.1

0

o

0

0

j

j

0

0

0

0

0

o

0

0

0

o

0

0

o

-

Runoff in 

acre feet

0

.8

2.4

4.6

.2

.6

0

O

0

.6

0

0

.2

4.8

Note.- No gage-height record Nov. 15-19; discharge computed on basis of records of water-master.
GILA RIVER BASIN

Moddle Canal near Virden, N. Mex.

Location.- Water-stage recorder and 6-foot concrete Parshall flume, lat. 32 0 40'30", 

long. 108°59'30", in NEy sec. 10, T. 19 S., R. 21 W., 1 mile downstream from intake 

and 1 mile southeast of Virden.

Records available.- October 1914 to September 1915, July 1922 to September 1931, and 

January 1939 to September 1947 in reports of Geological Survey. January 1936 to 

December 1938 and May 1942 to September 1947 in files of Office of Gila Water Commissioner, appointed by U. S. District Court of Arizona. Records of monthly discharge prior'to October 1938 have been republished, with some additions and revisions, 

in Water-Supply Paper 1049,

Extremes.- Maximum daily discharge during year, 30 second-feet Feb. 11; no flow at times.

1939-47: Maximum daily discharge, 70 second-feet (estimated) Sept. 30, 1941; no 

flow at times.

Remarks.- Records good. Canal diverts from left Tjank of Gila River in NW^SE^ sec. 11, 

T. 19 S., R. 21 W., for irrigation in Virden Valley. No diversion between intake 

and station.

Discharge, in second-feet, water year October 1946 to September 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.

16

12

7.7

7.1

7.1

2.2

0

1.7

2.8

4.9

5.6

7.9

9.3

9.6

9.9

5.8

4.0

3.4

5.6

7.9

8.2

8.2

7.7

8.8

12

17

15

7.9

5.5

3.5

4.0

Nov.

6.4

7.9

7.4

6.4

6.4

3.3

0

0

0

1.6

6.1

5.4

3.8

3.2

4.0

5.4

5.2

4.9

4.5

4.5

3.8

3.8

3.6

4.7

11

12

5.6

5.6

5.6

5.6

-

Dec.

5.4

5.4

5.4

5.4

6.6

.7

.4

.1

.9

.9

8.2

8.2

9.6

11

11

12

12

12

11

11

11

12

12

11

7.9

8.5

7.7

7.7

8.2

7.4

5.2

Jan.

5.2

5.4

2.6

0

0

0

0

0

0

1.7

3.8

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

16

30

15

.1

.1

.7

.9

.7

i.6

.9

.7

.9

.9

.9

.9

.4

.7

_

_

-

Month

October. ................................ .

November ...................................

December ..................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April. ...... ..............................

May........................................

June .......................................

July. ......................................

August ......................... ...........

September .......................... .......

Water year 1946-47 ... ..................

Mar.

6.1

6.4

7.4

6.9

6.9

6.9

7.1

6.9

6.9

7.1

7.1

7.9

7.4

7.4

7.4

6.9

6.6

6.6

3.1

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.2

0

0

4.0

7.9

7.9

8.2

7.9

7.7

7.9

8.2

Secondfoot-days

228.3

147.7

270.8

1,995.0

18 . 7

177.7

129.0

60 . 9

44.7

21.7

0

189 . 0

120.9

1,409.4

May

6.1

a5

ao

aO

aO

0

0

0

0

1.8

5.2

5.6

4.3

0

0

0

0

0

0

0

0

0

0

0

0

0

1.5

3.9

1.9

3.3

6.1

Maximum

17

12

12

26

5.4

30

7.9

8.2

6.1

14

0

23

16

30

June

0.7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7.0

14

0

0

0

0

0

0

0

0

0

0

Minimum

0

0

5.

0

0

0

0

0

0

0

0

0

0

0

Jul-i- Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

12

10

0

5.8

17

11

0

11

23

20

19

18

7.7

3.8

4.7

7.0

19

Mean

7.36

4.92

? 8.74

5.47

.60

6.35

4.16

2.03

1.44

.72

0

6.10

4.03

3.86

Sept.

16

3.5

.3

0

0

1.6

4.7

5.5

3.5

7.4

9.6

8.2

5.1

6.2

5.4

3.0

1.4

2.6

4.4

7.9

3.4

3.2

3.2

3.2

*3.4

1.8

0

0

2.8

3.6

Runoff in 

acre-feet

453

293

537

3,960

37

352

256

121

89

43

0

375

240

2 , 800

a No gage-height record; discharge computed on basis of records for station at State line.
GILA RIVER BASIN 

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

367

Location.- Water-stage recorder and 4-foot concrete Parshall flume, lat. 32°41', long. 

109"OSfi , in NE^SE? sec. 6, T. 19 S., R. 21 W., 500 feet upstream from New MexicoArizona State line and 2^ miles west of Virden.

Records available.- February 1939 to September 1947.

Extremes - Maximum daily discharge during year, 20 second-feet Sept. 1; no flow at times 

1539-47: Maximum daily discharge, 34 second-feet Aug. 13, 1944; ro flow at times.

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

which are poor. Canal diverts from left bank of Gila River in NWrSEt si -- - -

S., R. 21 W., for irrigation in Virden Valley, 

station.

ec. 11, T. 19 

Many diversions above and below

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6 t

8

y

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

9.3

6.0

5.6

4.8

1.3

aO

.2

1.0

3.1

4.8

5.8

5.1

7.0

8.6

4.6

1.5

3.1

4.4

7.0

6.2

5.8

1.6

.9

2.4

4.4

6.8

7.2

6.4

1.7

3.5

Nov.

3.8

6.6

4.3

3.5

4.3

4.0

0

0

0

0

0

0

0

1.5

3.2

4.6

4.6

4.4

4.1

3.8

3.1

2.9

2.9

3.4

7.7

12

5.1

5.1

5.1

5.1

-

Dec.

5.1

5.1

5.1

5.3

5.3

6.0

5.1

5.0

5.1

5.1

4.8

5.6

6.8

8.2

9.O

9.7

9.9

10

10

10

11

11

9.5

7.4

1.7

4.3

6.2

5.3

5.0

5.8

4.1

Jan.

4.1

4.4

3.2

0

O

0

0

0

0

.3

3.8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

4.3

6.0

6.0

5.6

5.6

6.0

6.0

6.8

7.6

8.0

6.8

6.6

7.2

7.6

7.0

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

May. .......................................

September. .................................

Water year 1946-47 ......... ............

Mar.

5.8

2.0

.5

.3

3.1

5.3

6.4

6.4

6.0

6.6

6.4

6.8

6.6

6.8

6.6

6.4

6.0

5.8

3.9

0

O

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

O

3.8

7.0

7.4

7.2

6.6

6.6

7.4

-

Secondf pot-days

207.5

1,426.5

36 5

18 "5

154 3

109.7

1,031.1

May

5.5

3.4

0

0

0

0

0

0

0

.4

4.1

5.1

5.0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

3.4

1.1

1.7

6.6

Maximum

11

21

20

20

June

1.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.9

14

aO

aO

aO

0

0

0

0

0

0

0

-

Minimum

1.7

0

0

0

July Aug.

0

O

O

0

O

0

O

0

0

0

0

O

0

O

5.6

10

O

1.9

16

10

O

9.5

19

17

16

17

5.3

3.2

3.9

2.9

17

Mean

6.69

3.91

3.66

2.82

Sept.

20

3.6

.2

0

0

.2

4.1

5.5

6.6

6.0

9.0

7.2

4.8

4.0

6.2

2.4

4.2

3.1

2.0

7.0

2.9

2.8

2.8

1.9

1.1

.4

0

0

.2

1.5

-

Runoff in 

acre- feet

412

2,830

193

218

2,045

a No gage-height record; discharge computed on basis of records for station near Virden. 

Note.- Backwater from water pumped into canal below control Dec. 15-19, Apr. 24 to May 21, 

Aug, 15-28, Aug. 31 to Sept. 2, Sept. 19, 20, 26-30.
368 GILA RIVER BASIN

Shriver Canal at Virden, N. Mex.

- Water-stage recorder and 2-foot metal Parshall flume, lat. 3?°40<35", long. 

'50", In SW^SE^ sec. 3, T. 19 S., R. 21 W., 1,700 feet downstream from headin

cat

108°59 

and 1 mile south of Virden.

ding

Records available.- January 1939 to September 1947 in reports of Geological Survey. 

January 1936 to December 1938 and May 1942 to September 1947 in file? of office of 

Gila Water Commissioner, appointed by U. S. District Court for Arizora.

"Extremes.- Maximum daily discharge during year, 4.8 second-feet May 26; no flow at times.

1939-47: Maximum daily discharge recorded, 11 second-feet Oct. 8, 1939; no flow 

at times.

Remarks.- Records fair. Canal diverts water from left bank of Gila River for irrigation 

of lands in New Mexico.

Discharge, in second-feet, water year October 1946 to September 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.

0

0

0

o

0

0

o

0

o

0

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0

0

o

o

0

0

.7

Nov.

2.0

.9

0

0

0

0

0

o

o

0

0

0

0

0

0

o

0

o

0

0

o

0

o

0

0

0

0

0

0

0

-

Dec. Jan. Feb.

0

0

o

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

o

0

1.0

_

_

-

Month

October. ...................................

November. ........................ .........

December. ..................................

Calendar year 1946 ......................

January. ................................. .

February. ............................ .....

March. ........................ ............

April ......................................

May........................................

June .................. ....................

July ..................................... .

August ................................... .

September. ............................... .

Water year 1946-47 ......................

Mar.

2.3

.5

0

0

.1

0

0

0

0

0

0

0

0

.9

1.7

.3

1.2

1.6

.7

0

 0

0

0

0

0

0

0

0

0

0

0

Apr.

o

0

0

0

0

o

0

0

o

0

0

0

o

0

0

o

0

o

0

0

0

0

o

0

0

0

0

0

o

1.0

-

Secondfoot-days

0.7

2.9

0

95 5

0

1.0

9.3 i!o

31.4

12.7

1.4

17 8

s!i

83.3

May

1.6

1.1

0

0

0

0

0

0

0

0

O

0

0

.3

1.2

1.0

.9

1.0

.9

.9

.8

.9

1.1

1.8

4.5

4.8

3.4

1.6

1.7

1.0

.9

Maximum

0.7

2.0

0

4.5

O

1.0

2.3

1.0

4.8

1.7

.3

2.2

2.5

4.8

June

0.9

.8

.8

.6

.5

.5

.5

.3

.4

.4

.3

.3

.4

.3

.2

.2

.3

.3

1.7

.8

.2

.1

0

.1

.3

.3

.3

.3

.3

.3

Minimum

C

C

C

C

Cc

c

c

c

c

c

c

c

c

July

0 3

2

2

2

1

0

0

0

0

0

0

0

0

0

0

0

0

o

.3

.1

0

0

o

0

0

0

0

0

0

o .

o

Aug.

0

0

0

0

0

0

0

o

0

0

0

o

0

0

0

.9

0

.7

1.6

.9

0

.4

2.1

1.6

1.4

1.7

1.2

1.9

2.2

1.0

.2

Mean

0.02

.10

o

. 26

O

.04

.30

.03

1.01

.42

.05

.57

.17

.23

Sept.

0.1

o

0

0

.6

0

0

0

0

0

0

0

0

0

0

0

.7

.3

0

0

0

0

0

0

0

0

2.5

0

0

0

Runoff in 

acre-feet

1.4

5.8

O

188

O

2.0

18

2.0

62

25

2.8

35

10

164

Note.- Backwater from obstruction in flume Dec. 6-12; no gage-height record Jan. 9-13; no flow 

during period as reported by engineer and water-master.
GILA RIVER BASIN 369

Valley Canal near Virden, N. Mex.

Location.- Water-stage recorder and 4-foot concrete Parshall flume, lat. 32°41'35", 

 long. 109°02'20", in SW^SW^ sec. 32, T. 18 S., R. 21 W., 1^-miles downstream from 

intake and 2-J miles west of Virden.

Records available.- October 1914 to September 1915, July 1923 to September 1931, and 

May 1939 to September 1947 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. Records of monthly discharge prior to October 1938 have been republished 

in Water-Supply Paper 1049.

Extremes.- Maximum daily discharge during year, 32 second-feet Oct. 31; no flow at times.

1939-47: Maximum daily discharge, 62 second-feet (estimated) Sept. 29, 1941; no 

flow at times.

Remarks.- Records good. Canal diverts from right bank of Gila River in NEijNWi sec. 4, 

T. 19 S., R. 21 W., New Mexico, for irrigation in Duncan Valley in Arizona. There 

are two wasteways between this gaging station and the point of use. For annual net 

diversion see page 343 .

Discharge, in second-feet, water year October 1946 to September 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.

24

25

24

23

26

26

28

26

22

19

19

18

19

19

19

19

21

21

19

20

20

21

23

20

17

19

19

20

24

28

32

Nov.

22

12

11

12

9.4

9.4

9.8

10

7.4

4.2

5.1

5.6

5.8

5.8

4.8

4.8

4.8

4.5

4.4

7.8

10

9.8

8.9

10

12

11

9.4

9.9

14

15

-

Dec.

14

14

14

12

14

14

14

14

14

14

14

14

14

14

14

14

14

13

13

13

13

12

12

12

12

12

12

13

13

13

8.5

Jan.

0

o

0

0

o

1.6

2.0

2.2

2.5

2.4

2.4

2.5

3.9

8.1

8.3

8.4

11

12

12

12

12

11

11

13

14

15

15

15

15

16

9.1

Feb.

6.8

8.1

9.2

8.4

8.4

8.1

8.4

10

9.2

9.9

12

12

12

13

13

13

13

12

10

8.6

10

13

14

13

13

13

13

14

_

_

-

Month

December ...................................

Calendar year 1948 ......................

March. .....................................

May........................................

July.. .....................................

September ..................................

Water year 1946-47 ......................

Mar.

15

16

16

16

16

16

16

17

17

17

16

15

14

14

13

12

11

10

5.0

0

.1

.1

0

O

0

0

0

o'0

0

0

Apr.

0

0

0

0

0

0

0

o

0

0

0

o

0

0

o

0

0

0

0

0

0

o

.3

3.2

.9

5.8

3.6

6.1

5.5

3.6

-

Secondfoot days

407.5

2,722.5

237 4

65 2

240,1

2,728.2

May

3.3

2.9

3.9

3.2

1.2

4.4

5.2

4.4

3.8

6.4

4.4

3.5

3.5

.3

0

.9

.5

O

1.6

.4

0

O

0

0

0

0

.7

0

2.4

4.5

3.8

Maximum

32

14

32

25

21

32

June

0.8

0

0

0

.4

0

0

0

0

0

0

0

0

0

0

0

0

0

2.9

6.1

0

0

0

.1

0

o

0

0

0

o

-

Minimum

8.5

O

.7

0

July Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

o

7.7

2.7

0

5.7

9.8

4.1

0

7.8

24

22

17

18

13

13

16

25

22

Moin

13.1

7.46

34

8.00

7.47

Sept.

18

8.5

4.5

8.0

12

13

13

12

8.9

3.9

2.4

6.6

5.5

3.2

1.9

.7

4.6

21

16

11

10

6.6

7.6

8.6

6.0

4.3

4.7

5.2

9.4

3.0

-

Runoff in 

acre feet

1 35O

808

5,400

476

5,410
370 OILA RIVER BASIN

San Francisco River near Glenwood, N. Mex.

Location.- Water-stage recorder, lat. 33°15'05", long. 108°52'40", in NE^NW^ sec. 23, 

T. 12 S., R. 20 W., a quarter of a mile upstream from hot springs and 6 miles south 

of Glenwood. Datum of gage is 4,552.06 feet above mean sea level, datum of 1929.

Drainage area.- 1,660 square miles.

Records available.- October 1930 to February 1934 (at site 4| miles upstream) and Pebruary 1934 to September 1947 in reports of Geological Survey. October 1927 to December 1931 (at site 4| miles upstream) in reports of State engineer.

Average discharge.- 18 years (1928-31, 1932-47), 64.2 second-feet.

Extremes.- Maximum discharge Curing year, 1,960 second-feet Oct. 29, Aug. 23; maximum 

gage height, 4.88 feet Aug. 23, from rating curve extended above 1,300 second-feet by 

logarithmic plotting; minimum daily, 8.2 second-feet June 23.

1930-47: Maximum discharge, 6,000 second-feet July 25, 1940 (gage height, 7.32 

feet), from rating curve extended above 1,300 second-feet by logarithmic plotting; 

minimum daily, 7.7 second-feet June 21, 1934.

Remarks.- Records good except those above 300 second-feet, which are fair, and those for 

periods of no gage-height record, which are poor. Diversions above station for 

irrigation.

Discharge, in second-feet, water year October 1946 to September 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.

29

27

26

26

26

26

26

26

25

25

25

25

26

26

2B

25

25

24

24

24

24

24

24

23

23

22

24

26

563

175

53

Nov.

37

33

32

30

34

34

32

33

32

33

33

32

32

32

32

33

33

32

33

33

33

32

33

34

38

34

33

33

32

31

-

Dec.

30

30

30

30

30

31

31

32

31

30

29

29

31

31

31

31

31

30

31

32

30

30

30

30

30

32

37

40

35

32

28

Jan.

26

26

26

23

21

21

25

29

29

28

28

29

31

31

30

28

27

28

30

29

29

30

30

26

26

28

28

27

28

27

26

-Feb.

26

26

27

27

26

26

25

25

25

24

24

24

24

23

23

23

22

23

23

21

20

22

22

20

20

21

23

25

_

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July... ....................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

24

24

24

a£3

a23

a23

a24

a24

a£3

23

23

21

18

18

18

17

16

14

14

15

14

16

17

16

16

14

14

16

16

15

13

Apr.

12

13

15

16

16

17

15

13

12

12

13

14

14

IS

14

14

14

13

14

15

12

12

14

14

14

15

14

14

12

17

Secondfoot-days

1 493

988

965

13,748.7

850

660

576

420

479

396

470

'722'

10,314.2

May

14

17

18

19

17

16

15

14

17

20

21

18

16

14

14

13

14

15

14

13

13

13

14

15

16

16

16

15

14

14

14

Maximum

563

38

40

563

31

27

24

17

21

17

47

846

59

846

June

17

12

12

12

14

16

12

14

8.6

9.4

9.8

14

15

15

16

14

14

15

16

16

14

14

8.2

11

13

14

14

11

12

13

Minimum

22

28

8.3

21

20

13

12

13

8 « 2

11

8.6

13

8.2

July

11

11

12

14

14

14

13

14

12

12

all

all

a 12

12

14

14

14

47

27

15

11

21

22

12

14

14

14

15

15

14

14

Aug.

11

10

9.4

10

9.8

8.6

9.4

11

23

26

25

66

23

80

39

101

46

28

25

25

59

369

846

123

45

32

39

33

37

53

73

Mean

48.2

31.1

37.7

27.4

18 6

14.0

15.5

13.2

15 2

74.0

24.1

28.3

Sept.

a40

32

27

23

25

25

25

59

41

26

22

17

17

16

17

18

40

50

23

21

20

19

18

17

16

14

13

13

14

14

Runoff in 

acre feet

2,960

1,960

1,910

27 » 260

1 , 69O

1,310

1,140

95O

785

932

4 55O

1^430

20,450

Peak discharge.- Oct. 29 (2:4o p.m.) 1, 

(8 a.m.) 1,960 see.-ft.

a No gage-height record; discharge computed on basis of 

and records for station at Clifton, Arlz.

sec.-ft.; Aug. 22 (10 p.m.) 1,150 sec.-ft.; Aup. 23

.liable fragments of gage-height record
QILA RIVER BASIN 371

San Francisco River at Clifton, Ariz.

Location.- Water-stage recorder, lat. 33°03'00", long. 109°17'45", in SW£SE£ sec. 30, T. 

4 b., K. 30 E., at Railroad Boulevard Bridge at Clifton, 8| miles upstream 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 1947. October 1910 

to July i9ia (fragmentary) at several sites, none of which was more than 2| miles upstream. Records of monthly discharge prior to October 1938 have been republlshed, 

with some revisions, in Water-Supply Paper 1049.

Average discharge.- 21 years (1913-15, 1916-17, 1927-33, 1935-47), 208 second-feet.

Extremes.- Maximum discharge during year, 5,860 second-fee% Aug. 23 (gage height, 10.56 

reet); minimum, 17 second-feet June 12 (gage height, 2.14 feet).

1927-47: Maximum discharge, 12,400 second-feet Feb. 8, 1937 (gage height, 12.7 

feet); 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 excellent except those for periods of fragmentary or no gage-height 

record, which are good. Diversions above station for irrigation, mining, and municipal uses.

Discharge, in second-feet, water year October 1946 to September 1947

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.

67

60

57

55

55

56

52

54

51

49

49

50

50

49

49

48

47

47

47

47

47

47

46

44

44

42

45

55

303

569

154

Nov.

96

82

73

72

72

72

69

68

67

67

67

66

63

62

62

62

60

60

60

62

60

60

60

64

73

73

71

68

67

67

-

Dec.

67

66

64

63

63

63

63

63

63

63

63

60

60

63

63

63

64

64

64

63

62

62

62

63

66

69

137

113

147

92

80

Jan.

71

69

69

63

58

58

59

60

66

67

66

66

66

68

68

67

63

68

67

66

66

63

63

63

62

59

62

62

63

64

62

Feb.

62

60

60

62

62

61

60

56

56

59

60

60

59

58

58

59

59

58

56

58

56

53

55

55

54

54

59

78

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May........................................

June .......................................

July.. .....................................

August ................................. ...

September . ..............................

Water year 1946-47 ......................

Mar.

72

66

66

64

62

62

66

64

64

64

60

59

58

55

55

56

51

51

52

49

49

48

47

48

45

46

48

45

46

a45

a44

Apr.

a46

a46

a47

a48

a49

a50

f49

a45

a44

a44

a43

a45

a46

a43

a43

45

44

44

43

42

45

44

41

41

41

41

40

41

41

36

Secondfoot-daya

2 435

2!o25

'

CO ,C*1

1,994

1,647

1,707

1,317

1,053

711

883

5,104

2,132

23,226

May

37

38

36

38

36

35

33

36

37

41

44

44

41

36

34

34

34

34

35

34

30

29

30

30

29

28

29

29

28

28

26

Maximum

569

147

569

71

78

72

50

44

42

83

1,680

373

1,680

June

26

26

27

22

22

21

23

23

21

20

20

19

20

23

23

24

25

26

42

34

25

23

23

HI

21

21

23

23

23

21

Minimum

42

60

60

16

58

53

44

36

26

19

19

21

33

19

July

22

23

21

21

28

22

23

28

26

23

21

20

19

21

21

23

23

23

54

49

33

29

85

50

29

27

27

26 ' 24

22

22

Aug.

22

22

21

21

21

22

21

f208

69

69

68

66

63

70

125

134

134

74

56

60

180

234

1,680

633

165

f!44

258

102

78

149

135

Mean

78 . 5

67.5

71.5

71.9

64.3

58 .8

55.1

43. 9

34.0

23 7

po ' c

165

71.1

63.6

Sept.

99

74

62

55

50

47

53

132

132

78

66

54

44

40

40

38

43

373

166

70

59

51

49

44

40

38

35

34

33

33

-

Runoff in 

acre-feet

4,830

4,020

4.4OO

52,050

3,960

3,270

3,390

2,610

2,090

1,410

lo!l20

4 

'

?3O

46,080

Peak discharge.- Oct. 30 (3:3O a.m.) 1,040 aee.-ft.; Aug. 23 (3:30 a.m.) 5,86O see.-ft. 

a No gage-height record; discharge computed on basis of recorded range In stage, and records for 

nearby stations.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
372 GILA RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°18'00", long. 109"29 I 30", In SH£ sec. 32, T. 

1 S., R. 28 E., unsurveyed, half a mile upstream from head of box canyon, 2f miles 

downstream from Willow Creek, 3^ miles downstream from Double Circle Ranch, and 17 

miles northwest of Morenci. Altitude of gage, 4,724 feet (by barometer).

Drainage area.- 377 square miles.

Records available.- August 1944 to September 1947.

Extremes.- Maximum discharge during year, 2,070 second-feet Aug. 25 (ga^e height, 4.76 

feet), from rating curve extended above 50 second-feet on basis of slope-area determination at 2,400 second-feet; minimum, 5.4 second-feet Mar. 17.

1944-47: Maximum dischlPge, 2,400 second-feet Sept. 11, 1944 (ga^e height, 4.80 

feet), by slope-area method; minimum, 1.7 second-feet June 21, 1946.

Remarks.- Records excellent except those above 50 second-feet, which ar3 poor. Diversions above station for irrigation, mostly above Willow Creek. Wate" pumped from 

Black River into Eagle Creek Basin. 25 miles upstream, is an appreciable part of 

flow past this station (see p. 374).

Discharge measurements made on Eagle Creek 900 feet above Willow Creek during 

this year are given below.

Day

1946 

Oct. 4 

23 

Nov. 14 

Dec. 2 

22

Discharge 

(sec. -ft.)

3.55 

3.22 

3.36 

3.80 

4.93

Day

1947 

Jan. 16 

Feb. 10 

Mar. 12 

20 

28

Discharge 

(sec. -ft.)

6.72 

4.69 

3.81 

3.33 

3.21

Day

1947 

Apr. 7 

18 

May 2 

13 

June 4

Discharge 

(sec. -ft.)

0.52 

3.10 

.44 

2.32 

.80

Day

1947 

Ju-ie 22 

July 12 

AM?,. 2 

22 

Se-it.12

Discharge 

(sec. -ft.)

0.97 

.65 

.57 

7. '61 

.84

Discharge, in second-feet, water year October 1946 to September 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.

18.9

19.5

18.9

20.4

20.4

19.5

19.5

19.5

19.5

20.4

18.'9

19.5

19.5

19.5

19.5

19.5

19.5

19.5

20.4

19.5

19.5

19.5

20.4

22.0

22.0

22.0

23.8

24.6

26.3

26.3

24.6

Nov.

24.6

23.8

22.9

22.0

23.8

22.9

22.9

22.9

21.2

21.2

21.2

20.4

20.4

19.5

20.4

18.3

17.1

17.7

17.7

17.7

17.1

17.1

17.7

19'. 5

18.9

18.3

18.3

18.3

18.3

18.3

-

Dec.

18.9

19.5

19.5

19.5

19.5

19.5

19.5

19.5

20.4

20.4

20.4

19.5

19.5

19.5

20.4

20.4

19.5

19.5

20.4

18.9

18.9

16.5

12.2

10.4

9.9

10.8

13.0

13.0

11.2

10.4

9.0

Jan.

8.7

9.0

8.7

t>7.6

7.3

7.6

8.3

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

7.3

7.3

7.3

7.3

7.3

7.3

7.3

7.6

7.6

8.0

8.0

7.6

7.6

6.3

8.0

8.0

Feb.

8.3

8.3

8.0

8.0

8.0

7.6

7.6

7.6

7.6

7.6

7.6

7.3

7.3

7.3

7.3

7.3

6.6

5.6

6.3

7.0

7.0

7.0 ~7.0

7.3

6.6

6.3

7.3

7.3

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

May. .......................................

September ..................................

Water year 1946-47 ......................

liar.

7.0

7.0

7.0

7.0

6.6

6.6

6.6

5.9

6.3

5.9

5.9

6.3

5.9

5.9

6.3

5.9

5.6

5.9

5.9

7.3

10.8

13.0

14.1

16.5

17.1

18.3

18.9

19.5

20.4

21.2

22.9

Apr.

22.0

21.2

19.5

19.5

19.5

18.9

18.9

19.5

20.4

21.2

22.9

19.5

22.0

23.8

23.8

21.2

20.4

18.9

18.9

18.9

20.4

20.4

20.4

21.2

21.2

18.9

19.5

19.5

20.4

18.9

-

Secondfoot-days

529.5

4,930.5

674.3

6,751.7

May

18.9

18.9

18.9

18.9

18.9

19.5

19.5

19.5

-21.2

23.8

21.2

17.7

18.3

17.7

20.4

22. 9

21.2

21.2

21.2

18.9

18.9

18.9

17.1

15.9

15.3

14.7

14.7

15.3

15.3

15.9

16.5

Maximum

PR *

20.4

104

22 9

ow o

1 1 ft

43

118

June

16.5

17.1

16.5

17.7

18.9

18.9

18.9

19.5

19.5

18.9

18.9

18.9

18.9

18.9

18.9

18.9

17.7

20.4

22.0

18.9

18.3

18.3

18.3

18.3

18.3

18.3

18.3

17.7

17.7

17.7

Minimum

18

9.

1.

y

13

13

17.

5.

July

17.7

17.7

17.1

17.1

17.1

17.1

17.1

17.7

17.1

16.5

16.5

16.5

16.5

17.1

18.3

18.3

17.1

17.1

17.1

17.1

17.1

67

47

17.1

15.3

14.7

14.7

14.1

14.1

14.1

13.5

Aug.

13.5

14.1

14.7

15.3

18.3

17.7

16.5

92

26.1

17.1

16.5

51

82

30

96

33

23.8

20.4

20.4

32

41

84

77

25.4

118

34

24.6

23.8

31

24.6

67

Mean

D 17.1

3 13.5

7 22.5

5 18.5

Sept.

24.6

22.9

22.9

22.9

21.2

19.5

18.9

35

29.9

19.5

18.9

17.7

17.7

18.9

18.3

18.3

43

34

23.8

22.0

23.8

20.4

20.4

20.4

20.4

18.9

18.9

20.4

20.4

20,4

Runoff in 

acre-feet

1,050

9,770

2 380

1,340

13,380

b Stage-discharge relation affected by Ice.
GILA RIVER BASIN 373

Eagle Creek above pumping plant, near Morenci, Ariz

Location.- Water-stage recorder, Parshall flume and weir, lat. 33°04'00", long. 109°26'45", 

In sec. 22, T. 4 S. , R. 28 E., 2-=r miles upstream from Phelps Dodge Corporation pumping 

plant, 5 miles west of Morenci, and 13 miles upstream from mouth.

Drainage area.- 613 square miles.

Records available.- April 1944 to September 1947.

Extremes.- Maximum discharge during year, 710 second-feet Aug. 8 (gage height, 4.95

reet) , from rating curve extended above 260 second-feet on basis of weir formula' minimum, 12.6 second-feet Feb. 19, 20.

1944-47: 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 100 second-feet, good between 100 and 250 second-feet, 

and poor above. Diversions above station for irrigation of 500 acres, mostly above 

Willow Creek. Water from Black River was pumped into Eagle Creek Basin, 51-r miles 

(revised) upstream from this station, for about three-quarters of the year (see p. 374). 

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 table below. More than 97 percent of the pumpage was from Eagle 

Creek.

Discharge, in second-feet, water year October 1946 to September 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.

25.6 

25.1 

24.6 

25.6 

26.1

26.1 

25.1 

24.6 

24.6 

24.6

24.2 

24.2 

24.6 

24.6 

24.2

23.7 

24.2 

24.2 

24.6 

25.1

25.1 

24.6 

24.2 

26.1 

26.1

26.5 

"28.5 

30 

32 

30 

29.0

Nov.

28.5 

29.0 

29.0 

28.0 

31

30 

28.5 

29.0 

29.5 

29.0

28.5 

28.5 

28.5 

28.5 

30

29.5 

27.0 

27.0 

27.0 

27.0

27.0 

26.5 

26.5 

27.5 

28.0

27.0 

27.0 

27.0 

27.0 

27.5

Dec.

27.5 

27.5 

28.0 

28.0 

28.0

28.0 

27.5 

27.5 

28.0 

28.0

28.0 

28.0 

28.5 

28.5 

28.5

28.5 

28.0 

28.0 

28.0 

28.0

27'. 5 

27.0 

23.7 

20.6 

19.7

19.3 

25.6 

25.1 

25.6 

22.8 

20.6

Month

Oct 

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr

Maj

Jul 

Aug 

Sep

W

alendar year 1946

Q

tember. ..........

ater year 1946-47

Jan.

19.3 

19.3 

18.9 

18.0 

15.6

16.4 

16.8 

16.8 

16.8 

16.8

16.4 

16.0 

16.0 

16.0 

16.0

15.6 

16.0 

16.4 

16.4 

16.0

16.0 

16.0 

16.0 

15.6 

15.2

15.2 

15.2 

15.2 

15.6 

15.2 

14.8

Secondfoot-days

797.7 

844. 0 

817.5

7,546.6

505.5 

336.2 

496.0 

794.7 

690.9 

593.1 

686.7 

1,747.4 

976.6

9,336.3

Feb.

14.8 

14.5 

14.5 

14.5 

14.5

14.1 

14.1 

14.1 

14.1 

14.1

14.1 

14.1 

13.7 

13.7 

13.7

13.7 

13.7 

13.3 

13.0 

13.0

13.3 

 13.0 

13.0 

13.0 

13.0

13.0 

14.1 

14.5

Mar.

14.1 

13.3 

13.3 

13.3 

13.3

13.7 

13.7 

13.7 

13.3 

13.3

13.3 

13.0 

13.3 

13.3 

13.3

13.3 

13.3 

13.7 

13.3 

13.3

13.7 

15.6 

17.6 

18.9 

20.1

21.5 

22.4 

23.7 

24.2 

24.6 

25.6

Apr.

26.5 

26.5 

27.0 

27.5 

26.5

26.1 

25.6 

25.6 

25.6 

26.1

26.5 

26.5 

26.5 

28.0 

28.0

28.0 

27.5 

27.0 

26.1 

25.6

25.6 

26.5 

26.5

27.0 

27.0

27.0 

26.1 

25.6 

25.6 

25.1

Discharge in second-feet

Maximum

32 

31 

28.5

115

19.3

14.8 

25.6 

28.0 

27.5 

25.1 

86 

250 

114

250

Minimum Mean

23.7 25.7 

 26.5 28.1 

19.3 26.4

3.5 20.7

14.8 16.3 

13.0 13.8 

13.0 16.0 

25.1 26.5 

18.0 22.3 

18.4 19.8 

17.2 22.2 

17.2 56.4 

23.7 32.6

13.0 25.6

Hay

24.2 

22.8 

23.7 

22.8 

22.8

22.8 

23.3 

23.7 

24.6 

27.5

27.0 

25.1 

22.8 

21.9 

21.9

24.2 

24.2 

23.7 

23.3 

23.3

21.9 

21.9 

22.4 

20.6 

19.7

18.4 

18.0 

18.0 

18.0 

18.0 

18.4

acre-i

June

18.9 

18.9 

18.9 

18.4 

18.9

19.3 

19.3 

19.3 

19.3 

19.3

19.3 

19.3 

19.3 

19.3 

19.3

18.9 

18.9 

21.9 

25.1 

23.7

21.5 

21.0 

20.6 

20.1 

19.7

19.7 

19.3 

18.9 

18.4 

18.4

in

eet

1,580 

1,670 

1,620

14,960

1,000 

766 

984 

1,580 

1,370 

1 , 180 

1 , 360 

3,470 

1,940

18,520

July

18.4 

18.9 

18.4 

18.9 

19.3

24.2 

20.6 

24.2 

21.0 

20.1

19.7 

18.9 

18.4 

18.4 

19.7

20.1 

18.9 

18.0 

18.4 

18.9

18.9 

19.7 

86 

33 

23.7

20.6 

19.7 

18.9 

18.0 

17.6 

17.2

Aug.

17.2 

17.2 

17.6 

18.0 

20.6

20.6 

19.7 

85 

106 

35

28.5 

35 

109 

45 

51

92 

39 

32 

51 

39

79 

70 

250 

69 

41

115 

40 

33 

39 

35 

98

Sept.

46 

33 

29.5 

30 

29.5

27.0 

26.1 

29.0 

51 

32

26.5 

24.6 

24.2 

24.2 

24.6

23.7 

32 

114 

38 

36

32 

29.5 

28. O 

27.5 

27.5

26.5 

25.6 

26.1 

26.5 

26.5

Pumpage to Clifton and 

Morenci from San Francisco 

River and Eagle Creek 

(aire-feet)

1,024 

903 

872

7,940

829 

896 

926 

921 

871 

978 

986 

929 

967

11,100

Peak discharge.- Aug. 8 (4:3O p.m.) 710 sec.-ft.; Aug. 23 (1 a.m.) 495 sec.-ft.
374 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" 4ii "45", in SW-£ 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 Corporation bench mark). Prior to 

June 26, 1946, recorder at site 3^ miles upstream at different datum.

Records available.- April 1945 to September 1947.

Extremes.- Maximum discharge during year, 22.7 second-feet Mar. 18 (gage height, 2.82 feet;

 no now Dec. 21 to Mar. 17.

1945-47: -Maximum discharge, that of Mar. 18, 1947; no flow for seme periods in 

each year.

Remarks. - Records excellent. The entire flow consists of Black River (1-ead 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 vicirity of Morenci.

Discharge, in second-feet, wster year October 1946 to September 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.

17.7

17.4

18.3

17.4

17.2

17.2

17.2

17.4

17.4

17.2

16.9

17.4

17.2

17.4

17.4

17.7

17.7

18. C

17.7

17.2

18.3

18.6

20. C

19.7

19.7

19.7

20.0

19.7

19.7

19.7

19.4

Nov.

19.4

18.6

16.9

16.9

17.2

16.9

16. S

16.1

16.1

16.9

16.4

16.6

16.4

16.6

14.2

13.2

14.2

14.2

14.5

14.2

14.2

14.2

14.0

14.0

14.0

14.0

14.0

14.0

14.0

14.2

Dec.

14.7

15.0

15.3

15.0

14.5

14.2

14.2

14.2

14.2

14.2

14.2

14.2

14.2

14.2

14.2

14.2

14.2

14.2

14.2

14.2

3.7

O

0

O

0

O

O

0

O

0

O

Jan. Feb.

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

o

0

o

o

o

0

0

o

o

0

o

o

0

o

0

o

5.2

20.6

20.3

19.1

19.1

19.7

19.4

19.7

20.0

19.1

19.1

19.1

19.0

19.7

19.1

Apr.

19.1

19.1

19.1

19.1

19.1

19.1

18.8

19.1

19.4

19.4

19.4

18.3

17.7

18.0

18.0

17.7

16.1

16.1

16.1

17.7

17.4

17.7

17.7

17.7

17.7

17.7

17.7

17.7

17.7

17.7

-

Secondfoot-days

563.5

463.0

291.2

3,353.4

O0"

543.1

528 . 9

568 . 3

602 . 3

573 9

57o!e

4,983.0

May

17.7

17.7

17.7

17.7

17.7

17.2

17.2

18.3

18.3

17.2

13.4

15.3

15.3

17.4

19.7

18.6

18.6

18.8

17.4

17.4

16'. 4

15.8

16.1

16.1

15.8

16.1

16.1

16.1

16.1

18.0

17.2

Maximum

20. o

19.4

15.3

21.5

O

0

19.

19.

19.

19.

19.

19.

20.6

June

17.2

17.2

17.7

19.1

19.1

19.1

19.7

19.7

19.7

19.7

19.4

19.4

19.4

19.4

19.4

19.1

18.0

18.0

17.7

18.0

18.3

18.8

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

-

Minimum

16.9

13.2

O

0

0

0

0

16.1

13.4

17.2

19.4

17.4

17.7

0

Jvly

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.4

19.7

19.4

19.4

19.4

19.4

19.4

19.4

19.7

19.4

19.4

19.4

19.4

19.4

19.4

19.7

Aug.

19.1

19.4

19.7

19.4

19.4

19.4

19,4

19.4

19.4

19.1

19.. 7

19.4

19.4

19.4

19.4

18.6

17.7

17.4

17.4

17.4

17.4

17.7

17.7

17.7

17.7

17.7

17.7

17.7

17.7

17.7

17.7

Mean

18 . 2

15 4

9^39

9.19

O

0

18 .1

17.1

18.9

19.4

18 . 5

19.0

13.7

Sept.

17.7

18.6

19.4

19.4

19.7

19.4

19.4

19.4

19.4

18.6

18.6

18.3

18.6

18.6

18.6

19.4

19.4

19.4

194

18.3

18.3

18.3

18.6

19.4

19.4

19.4

19.4

19.4

19.7

19.4

Runoff in 

acre-feet

1,120

93 8

578

6,660

0

0

552

1,080

1,050

1,130

1,190

1,140 

1,130

9,890
GILA RIVER BASIN 375 

Willow Creek near Point of Pines, near Morenci, Aria.

Location.- Water-stage recorder and concrete control, lat. 33°22'45", long. 109°39'00", 

in MV sec. 2, T. 1 S. , R. 26 E. , unsurveyed, on San Carlos Indian Reservation, at 

head 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 1947.

Extremes.- Maximum discharge during year, 717 second-feet Aug. 12 (gage height, 6.90 feet), 

rrom rating curve extended above 25 second-feet on basis of slope-area determination 

at gage height 7.96 feet; no flow on many days from December to March.

1944-47: 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, which are poor. Almost 

all of flow past this station is water pumped from Black River (see reco-d on preceding page).

Discharge, in second-feet, water year October 1946 to September 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.

16.6

16.0

16.6

16.6

16.0

16.0

16.0

16.6

16.6

16.6

16.0

16.0

16.6

16.6

16.6

16.6

16.6

16.6

16.6

16.0

16.6

17.2

19-.0

19.0

19.0

18.4

19.6

19.0

21.5

19.0

18.4

Nov.

18.4

18.4

16.0

16.0

16.6

16.6

16.0

15.4

16.0

16.0

16.0

16.0

16.0

16.0

13.8

10.8

12.8

12.8

12.8

12.8

12.8

12.8

12.8

13.8

13.3

13.3

13.3

12.8

12.8

12.8

-

Dec.

13.8

13.8

13.8

13.8

13.8

13.3

13.3

13.3

13.3

13.3

13.3

13.3

13.3

13.3

13.3

13.3

12.9

13.3

13.3

13.2

7.4

.3

.1

0

0

.1

.3

.5

.2

0

0

Jan. Feb.

Month

December. ............. ....................

Calendar year 1946 ........ .............

May. .......................................

July .................... ... ...... .....

September. ....... ..... ... ............

Hater year 1946 47 ... ..... ..... .....

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

15.9

18.4

17.8

17.2

17.8

17.8

17.8

17.8

17.2

17.2

17.2

17.2

18.4

17.8

Apr.

17.8

17.8

18.4

18.4

17.8

17.8

17.8

18.4

18.4

18.4

18.4

16.6

16.6

16.6

16.6

16.6

15.4

14.8

14.8

15.4

15.4

16.0

16.0

16.0

16.0

16.0

16.0

16.0

16.0

16.0

-

Secondfoot-days

435 7

276.9

3,344.8

245 5

524 4

548.3

4,800.2

May

16.0

16.0

16.0

16.0

16.0

16.0

16.0

16.0

17.2

16.0

11.3

13.3

13.3

14.3

18.4

17 '.2

17.2

17.2

16.6

15.4

15.4

14.8

14.8

14.8

14.3

14.8

14.8

14.8

14.3

16.6

16.0

Maximum

13.8

120

52

27.3

66

June

16.0

16.0

15.4

17.2

17.2

17.2

17.8

17.8

17.8

17.8

17.8

17.8

17.8

17.8

17.8

17.8

17.2

19.0

17.2

17.2

16.6

17.2

18.4

17.8

17.8

17.8

17.8

17.8

17.8

17.8

-

Minimum

0

0

17.2

0

July

17.8

17.8

17.8

17.8

17.8

17.8

18.4

17.8

17.8

17.8

17.8

17.8

18.4

18.4

17.8

17.8

17.8

17.8

17.8

17.8

17.8

66

18.4

17.8

17.8

17.8

17.8

17.8

17.8

17.8

17. S

Aug.

17.8

17.8

17.8

19.0

19.6

18.4

18.4

20.8

18.4

18.4

18.4

52

22.1

20.2

18.4

17.8

16.6

16.6

17.2

17.2

16.6

42

21.8

16.6

16.6

16.6

16.6

21.4

17.2

37

24.2

Mean

1 t.S

8.95

9.16

7 92

18.3

13.2

Sept.

17.2

17.2

18.4

18.4

18.4

18.4

18.4

27.3

19.0

17.2

17.2

17.2

17.2

17.2

17.2

18.4

19.0

18.4

18.4

17.2

17.2

17.2

17.8

18.4

18.4

18.4

18.4

18.4

18.4

18.4

-

Runoff in 

acre- feet

549

6,630

954

1,090

9,520

Peak discharge.- July 22 (3:30 p.m.) 5OO sec.-ft.; Aug. 12 (3:2O p.m.) 717 

852060 O - 49 - 25
376 GILA RIVER BASIN

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

Location. - Water-stage recorder, lat. 33°21 I 15", long. 109°31'30", in FE-q- sec. 13, T. 

1 a., R. 27 E., unsurveyed, on San Carlos Indian Reservation, 1 mile upstream from 

lower end of box canyon, 2-f miles (revised) northwest of Double Circle Ranch, 2| 

miles upstream from mouth, and 19 miles northwest of Morenci. Altitude of gage, 

4,969 feet, revised (by barometer).

Drainage area.- 149 square miles.

Records available.- August 1944 to September 1947.

Extremes.- Maximum discharge during year, 629 second-feet July 22 (gage height, 5.37 

feet), from rating curve extended above 70 second-feet on basis of slope-area determination at 1,100 second-feet; minimum, 0.2 second-foot Jan. 24.

1944-47: Maximum discharge, 1,240 second-feet July 10, 1946 (gape height, 6.03 

feet), 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, 1946.

Remarks.- Records excellent except those for periods of ice effect, which are good, and 

those above 70 second-feet, which are poor. Major portion of flow past this station 

is water pumped from Black River (see p. 374).

Discharge, in second-feet, water year October 1946 to Septembe- 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.

is. e

16.6

16.6

16.1

15.6

15.2

15.2

15.6

15.6

15.6

15,6

16.1

16.1

16.1

16.1

16.6

16 _6

16.6

16.6

16.6

17.0

17.0

19.4

18.9

18.5

18.5

18.9

19.4

21.6

20.5

18.9

Nov.

18.9

19.4

17.5

17.5

18.5

'18.0

17.5

18.0

17.5

18.0

17.5

17.0

17.0

17.5

18.5

14.7

15.2

15.2

15.2

15.2

15.2

15.2

15.2

15.6

14.7

14.3

14.3

13.9

13.9

13.9

-

Dec.

14.7

15.2

15.2

15.2

14.7

14.3

14.3

13.9

13.9

13.9

13.9

13.9

13.9

13.9

13.9

13.9

13.9

14.3

14.3

13.6

13.8

8.5

4.4

3.1

2.6

2.7

3.6

3.6

3.7

3.0

1.9

Jan.

2.0

1.8

1.5

1.3

bl.3

1.3

1.2

1.0

.9

1.0

.9

1.0

.0

.0

.1

.0

.1

.2

bl.l

bl.o

bl.o

bl.o

bl.l

b.9

,9

.9

1.1

1.1

1.3

1.1

1.0

Feb.

.2

.1

,1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.O

.0

.O

.0

.1

.1

.1

.2

.2

.2

.2

.2

.1

.4

1.4

-

_

-

-Month

October. ...................................

November . ........................ .........

December ...................................

Calendar year 194S ............ .........

January. ............................. ... .

February ...................................

March. .....................................

April. ............................... .....

May........................................

June ................................. .....

July. ............. .................. .....

August .................................

September. ....... ........................

Water year 1946-47 . ..... ...... .....

Mar.

1.3

1.3

1.3

1.3

1.3

1.3

.3

.3

.3

.3

.3

.2

.2

.2

1.2

1 . 2

1.2

1.2

7.6

13.6

15.0

IF. 3

17.9

18.4

18.9

18.9

18.9

18.9

18.9

19.5

19.5

Apr.

19.5

18.9

19.5

20.1

19.5

18.9

18.9

19.5

19.5

18.4

18.4

17.4

16.9

16.4

16.4

15.5

15.5

14.0

13.6

13.6

15.5

15.5

15.5

16.0

16 4

16.0

16.0

16.0

16.4

16.0

Secondfoot-days

530.3

490.0

335.7

3,476.52

35.1

31.7

245.6

5O9 7

464.5

497.6

742.1

541.4

5, 035. (5

May

16. n

16.0

16.0

16.0

15.5

15.5

15.0

15.5

16.4

17.4

14.5

13.6

13.6

13.2

16.9

17/4

16.9

16.9

16.9

15.0

14.5

14.0

14.0

13.2

13.2

13.2

13.2

13,2

12.8

14. n

15.0

Maximum

21.6

19.4

15.2

134

2.0

1.4

19 . 5

20 1

17.4

18.4

82

77

31

S2

June

15.5

15.5

15.5

16.9

16.9

16.9

16.9

17.4

17.4

16.9

16.9

16.9

16.9

16.9

16.9

16.4

15.5

17.4

18.4

16.4

16.0

16. 0

16.4

16.4

16.4

16.4

16.4

16.4

16.4

16.4

Minimum

15.2

13.9

1.9

.04

.9

l.n

1.2

13.6

15.5

16.0

15 5

16. n

.9

July

IS. 4

16.4

16.9

16.9

16.9

17". 4

17.9

18.4

17.4

16.9

16.9

16.9

16.9

17.4

17.9

17.9

17.4

17.4

17.9

17 9

17.9

82

32

18.4

17.4

17.4

16.4

16.4

16.0

16.0

16.0

Aug.

15.5

15.5

15.5

16.9

21.3

17.4

16.9

77

24.2

18.4

17.4

51

42

19.5

18.4

18.9

16.0

16,0

16.0

16.4

17.4

30

51

16.9

17.2

17.3

16.0

16.0

22.0

17.1

51

Mean

17.1

16.3

1O.8

9.52

1.13

1.13

7.92

17.0

15.0

16,6

19.7

25 9

18.0

13.8

Sept.

16.9

16.0

16.9

17.4

16.9

16.9

16.9

31

22.7

17.9

17.4

16.9

16.9

16 9

16.9

17.4

22.4

21.3

18.9

17.4

17.9

16.9

16.9

16.9

16.9

16.9

16.9

16.9

16.9

16.4

-

Runoff in 

acre feet

1,050

972

66S

6,900

70

63

487

1,010

921

987

1,210

1,470

1,070

9,980

b Stage-discharge relation affected by Ice.
GILA RIVER BASIN 

San Simon Creek near Solomonsville, Ariz.

377

Location.- Water-stage recorder, lat. 32°48'06", long. 109°38'19", in NW-pE£ sec. 25, 

T. 73., R. 26 E., 1 mile southwest of Solomonsville and 2j 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 1947. Records of 

monthly discharge prior to October 1938 have been republished in Water-Supply Paper 

1049.

Average discharge.- 13 years (1931-32, 1935-47), 13.3 second-feet.

Extremes.- Maximum discharge during year, 2,700 second-feet June 18 (gage height, 7.34 

feet); no flow on many days.

1931-47: 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 below 10 second-feet, which are fair. Small diver - 

sions 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 1946 to September

Day

]

2

3

4

5

6

7

8

9

10

1]

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

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

21

0

0

Nov. Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

o

0

0

1

0

0

0

o

Jan. Feb.

Month

December. ............. ....................

Calendar year 1946 ......................

MPV

September ................ .................

Water year 1946 -47 ... .................

Peak discharge.- June 18 (5 p.m.) 2,700 se

Mar. Apr.

Secondfoot-days

1

1,504.7

355.2

2,040.9

May

Maximum

1

594

151

292

c.-ft.; Aug. 8 (6 p.m.

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

166

15

.1

0

0

0

0

0

0

0

0

0

0-

Minimum

(

July

0

0

0

0

0

0

11

36

f2

0

0

0

0

0

0

0

0

z

.2

0

0

0

0

0

0

0

o

0

0

0

0

Aug.

0

0

0

0

.1

0

0

137

f6

0

0

f .2

.2

0

99

.9

0

7

0

fZ

45

12

246

3

70

85

48

143

4

171

292

tf»an

) .03

) 4.12

) 3 59

) 11.8

) 5.59

Sept.

45

.1

0

0

0

0

0

50

1

7

0

0

0

0

0

0

0

0

151

101

f.l

0

0

0

0

0

0

0

0

0-

Runoff in 

acre-feet

2.0

2,990

705

4,050

2,540 sec. -ft.; Aug. 23 (l . i.)

2,620 sec.-ft.

f Computed from partly estimated gage-height record.
378 GILA RIVER BASIN 

San Carlos River near Peridot, Ariz.

Location.- Water-stage recorder, lat. 33°19'20", long. 110°26'50", in NWjj sec. 30, T. 1 

S., R. IS 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 1947. August 1910 to January 1911, April 

1914 to September 1915 (fragmentary) at site 9^ miles downstream. Records of monthly 

discharge prior to October 1938 have been republished in Water-Supply Paper 1049.

Average discharge.- 18 years (1929-47), 53.6 second-feet.

Extremes.- Maximum discharge during year, 15,000 second-feet Aug. 8 (gage height, 11.1 

I'eet), from rating curve extended above 500 second-feet by logarithmic plotting and on 

basis of studies of inflow to San Carlos Reservoir; no flow on many days during 

summer.

1929-47: 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 basis of records of inflow to San Carlos Reservoir; no flow on several days in most 

years.

Remarks.- Records good except those for periods of fragmentary gage-height record and 

tnose above 400 second-feet, which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

12

12

11

10

10

10

9.9

9.9

9.3

9.3

9.9

10

9.9

8.7

8.2

7.6

8.2

8.2

8.2

8.7

8.7

9.3

8.7

9.3

9.9

9.9

11

17

19

15

Nov.

11

10

10

10

10

10

10

11

13

14

13

12

11

11

14

14

12

12

12

12

12

12

. 13

38

29

16

13

12

12

12

-

Dec.

12

12

12

12

12

12

12

12

12

12

12

12

13

13

13

13

12

12

12

13

13

13

14

14

14

16

20

31

156

51

30

Jan.

22

20

19

16

15

15

15

14

14

13

14

14

14

14

12

11

10

9.9

9.9

9.9

9.9

9.9

9.9

10

10

10

101111

12

11

Feb.

11

12

12

10

10

10

10

11

11

11

10

10

9.9

9.9

9.3

10

10

10

10

10

10

10

10

10

10

11

13

14

_

_

-

Month

October ....................................

November. ..................................

December. ...................................

Calendar year 1946 ...........'...........

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .............. ......................

September ..................................

Water year 1946-47 ......................

Mar.

14

12

12

11

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

10

10

11

11

11

10

101111

10

9.9

9.3

Apr.

9.3

9.9

9.9

10

11

9.9

8.7

8.7

8.7

9.3

9.3

8.2

7.6

8.2

7.6

7.6

7.0

7.0

7.0

7.0

6.6

6.6

6.6

6.6

6.6

6.6

6.2

6.6

6.6

6.6

-

Secondfoot-days

321. 8

401

617

8,053.9

396.4

295.1

348.2

237.5

214.1

32.2

0

1 590 2

I'leeig

5,618.4

May

6.6

5,8

5.4

5.4

5.0

4.7

3.9

3.1

3.1

18

7.0

5.4

4.7

4.3

3.5

3.5

3.5

3.5

2.2

1.8

70

14

f4.7

f3.5

3.5

3.5

3.9

3.1

2.9

2.4

2.2

Maximum

19

38

156

948

22

14

14

11

70

2.4

0

1,130

487

1,130

June

2.2

2.2

2.2

2.2

2.4

1.8

1.6

1.6

1.8

1.3

.9

.8

.8

.8

.7

.6

.6

.7

1.3

1.1

.7

.7

.6

.8

.7

.6

.4

.1

o

0

-

Minimum

7.6

10

12

0

9 . c

9.3

9.3

6.2

1.8

0

0

0

3.8

0

July Aug.

0

0

0

0

0

0.7

0

1,130

92

31

14

30

42

17

18

68

f!7

flO

7.5

7.5

7.0

27

11

6.5

6.0

5.5

4.4

3.8

3.2

4.1

27

Mean

10.4

13.4

19.9

22.1

12.8

10.5

11.2

7.92

6.91

1.07

0

51.3

38.9

15.4

Sept.

9.0

5.5

4.1

4.1

7.0

149

110

7.0

6.0

4.7

3.8

3.8

4.1

3.8

4.1

3.8

17

487

f!78

f66

f27

14

9.5

7.5

6.5

5.5

5.0

5.0

5.0

4.1

-

Runoff in 

acre-feet

638

795

1,220

15,980

786

585

687

471

425

64

0

3,150

2,310

11,130

Peak discharge^- Aug. 8 (4:30 p.m.) 15,000 see. -ft.; Sept. 18 (5 p.m.) 1,290 se^.-ft. 

f Fragmentary gage-height record; discharge computed from partly estimated E'lge heights.
GILA RIVER BASIN 379

San Pedro River at Charleston, Ariz.

Location.- Water-stage recorder, lat. 31°37'40", long. 110°10'30", in NF.-jNE-j sec. 11, 

T. Hi S., R. 21 E., In Spanish land grant of San Juan de las Boquilles y Nogales, at 

highway bridge a quarter of a mile south of Charleston, \\ miles upstream from 

Charleston dam site, 8j miles upstream from Baboeomari River, and 29 miles upstream 

from Benson. Datum or gage is 3,954.26 feet above mean sea level, detain of 1929.

Drainage area.- 1,220 square miles, of which 596 square miles is in Mexico.

Records available.- January 1904 to August 1906 (January and Feburary 1S04, gage heights 

only), October 1910 to August 1912 (discharge measurements and some gage heights), 

September 1912 to September 1947. Records of monthly discharge prior to October 1938 

have been republished, with some additions, in Water-Supply Paper 1049.

Average discharge.- 36 years (1905, 1912-47), 72.1 second-feet.

Extremes.- Maximum discharge during year, 10,100 second-feet Aug. 9 gage heights, 8.60 

reet); minimum, 2.9 second-feet June 11, 30.

1928-47: Maximum discharge, 31,000 second-feet Aug. 13, 1940 (gage height, 13.1 

feet, site ana 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 second-foot 

Jun3 27, 1939.

Maximum discharge known, about 98,000 second-feet Sept. 28, 1926 (gage height, 21.9 

feet, site and datum then li use, from floodmarks), by slope-area measurement.

Remarks.- Records good. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 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

Oot.

25

19

16

14

12

12

11

9.9

10

12

10

9.4

8.4

8.1

7.4

7.0

7.0

7.0

6.7

6.7

6.7

6.7

6.7

6.7

6.7

7.4

8.1

13

15

15

15

Nov.

15

14

14

15

15

15

15

13

13

13

14

13

13

13

13

13

12

11

11

11

10

10

101111

11

10

10

10

9.9

-

Dec.

11

10

11

11

12

13

15

17

19

19

20

20

19

19

19

18

16

15

16

17

17

16

16

16

16

16

17

17

17

17

18

Jan.

18

19

19

18

17

19

19

19

18

19

19

19

19

19

19

18

18

19

19

19

19

17

13

15

15

15

14

12

13

13

12

Feb.

11

11

11

12

12

12

13

13

14

15

15

15

15

17

16

16

16

17

17

17

17

19

19

19

19

19

18

18

_.

_

-

Month

October. ...................................

November ......................... .........

December. ...................................

Calendar year 1946 ...................

January. ........................... L . . . . .

February. ......................... .........

March. .....................................

April.. ....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1945-47 ... .................

liar.

17

17

17

17

15

16

16

15

16

15

17

16

15

15

15

15

15

17

17

17

15

15

15

15

14

13

13

12

12

11

12

Apr.

11

10

11

13

13

14

13

13

12

11

11

10

10

12

11

11

11

11

11

9.9

10

10

9.9

9.9

9.4

8.9

9.9

10

10

8.9

-

Second 

foot-days

325 . 6

368 . 9

500

16 f 657 .3

531

433

467 325 . 8

239 6 150:4 963 . 2

11 223 1

'753!s

16,281.1

May

8.4

8.1

8.1

8.1

8.1

8.

7.

7.

7.

8.

6.

7.

7.0

6.7

6.7

7.4

7.0

7.0

7.0

7.4

8.1

9.9

11

9.4

8.9

7.4

7.4

6.7

6.7

6.7

6.7

Maximum

25

15

20

3,760

19

19

17

14

11

13

277

2,920

208

2,920

June

6.4

6.4

6.0

5.3

5.3

5.0

4.8

4.3

4.1

3.9

3.9

3.9

3.9

3.9

3.9

3.6

3.6

4.1

13

9.9

6.4

5.7

5.0

4.5

4.1

4.1

4.3

3.9

3.6

3.6

-

Minimum

6 . ' 10"9 . !

3.S

12

11

11

8.9

6.7

3.6

3.4

5.7

8.4

3.4

July

3.4

3.6

4.3

4.5

29

51

37

71

25

15

11

8.9

7.4

7.7

52

12

16

11 277-

44

25

89

35

21

17

13

11

2F

15

10

8.4

Aug.

6.7

6.0

5.7

5.7

38

16

28

413

2,920

186

107

851

666

204

L,790

643

163

96

74

72

67

644

442

88

50

35

43

1,010

259

137

157

Mean

10.5

12 3

16.1

45.6

17.1 

15.5

15.1

10.9

7 73

5.01

31.1

362

25 1

44.6

Sept.

65

38

32

23

17

15

13

45

25

17

13

11

9.9

8.9

8.9

8.4

8.4

12

208

.47

28

19

14

12

11

8.9

8.9

8.4

8.9

8.9

-

Runoff in 

acre-feet

<

646

732

992

33,040

1,050 

859

926

646

475

298

1,910

22, 260

1/490

32,280

Peak discharge.- Aug. 9 (3 a.m.) 10,100 sec.-ft. ; Aug. 12 (6 a.m.) 3,760 sec.-ft.; Aug. 13 2 a.m.) 

2,880 sec.-ft.; Aug. 15 (10 a.m.) 4,620 sec.-ft.j Aug. 22 (5:30 p.m.) 5,080 sec.-ft.; Aug. 28 (4 a.m.) 

3,120 sec.-ft.
380 GILA RIVER BASIN 

San Pedro River near Redington, Ariz.

Location.- Water-stage recorder, lat. 32°23', long. 110°27', in NW£ sec. 19, T. 12 S., 

K. iy £., half a mile upstream from Coohise-Pima county line, 4 miles upstream from 

Redington, and 30 miles downstream from Benson. Datum of gage is 2,937.53 feet 

above mean sea level, datum of 1929.

Drainage area.- 2,940 square miles, of which 696 square miles is in Mexico. 

Records available.- June 1943 to June 1947 (discontinued).

Extremes.- Maximum discharge during year, 23,000 second-feet Aug. 8 (gage height, 12.0 

reetj, from' peak recorded after station was discontinued, from rating curve extended 

above 7,000 second-feet by logarithmic plotting to peak discharge of 90,000 secondfeet at gage height 21.5 feet (see below); no flow many days May and June.

1943-47: Maximum discharge, that of Aug. 8, 1947; no flow many days in each year. 

Maximum discharge known, 90,000 second-feet Sept. 28, 1926 (gage height, 21.5 

feet, from floodmark), computed on "basis of peak discharge of same flood for San 

Pedro River at Charleston and Gila River at Kelvin.

Remarks.- Records poor. Gage well not connected to river when discharge is 200 secondreet or less. Figures of daily discharge not sufficiently accurate for publication. 

Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

R

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

.

_

_

_

-

_

.

_

tl.89

_

_

_

_

-

_

-

-

_

-

_

-

-

t.70

-

_

_

-

-

_

-

Nov.

tO. 98

Dec.

tl.13

Jan.

tl.56

Feb.

tl.lZ

Month

December. ..................................

Calendar year 19*6 ......................

May. .......................................

September . .................................

Thp period .................. ... .... ...

Mar.

tl.io

Apr.

to. 49

Secondfoot-days

May

*o

Maximum

50

10

4.O9O

15

1

.5

-

-

June

*o

Minimum

0.7

1

o

.5

-

-

Jul'' Aug.

Mean

3.5

1.2

2.1

36.4

2.3

l.C

.9

.2

-

-

Sept.

Runoff in 

'acre-feet

214

73

127

26,380

144

56

61

54

10

0

-

739

t Result of discharge measurement. 

* Field observation of no flow.

Note.- Discharge computed on basis of 8 discharge measurements, 2 field observations of no flow, 

nd records for station at Charleston.
GILA RIVER BASIN 381

Santa Cruz River near Nogales, Ariz.

Location.- Water-stage recorder, lat. 31°32 I 40", long. HO'Sl'DS", in NW£ sec. 18, T. 

24 t>., R. 15 E. , unsurveyed, in Spanish land grant of Buena Vista, three-quarters of 

a mile downstream from international boundary and Sj 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 1947. March to 

November 19UY |and 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, 65- miles downstream. Records of 

monthly discharge prior to October 1938 have been republished, with some additions, in 

Water-Supply Paper 1049.

Average discharge.- 15 years (1930-33, 1935-47), 18.3 second-feet.

Extremes.- Maximum discharge during year, 2,550 second-feet Aug. 29 (gage height, 7.05 

I'eet); no flow on many days.

1930-47: Maximum discharge, 12,000 second-feet Aug. 31, 1935 (gage height, 12.3 

feet), on basis of slope-area determinations at gage iheight 9.5. and 10.9 feet; no flow 

for several days or parts of days each year.

Remarks.- Records good prior to July 3 and fair thereafter except those for periods of 

fragmentary or no gage-height record, which are poor. Many small diversions above 

station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

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.

32

5.4

5.9

5.9

5.9

5.9

5.4

6.7

5.9

5.4

5.9

5.9

5.9

5.4

5.4

5.0

5.0

4.2

4.2

5.0

5.0

5-0

5.0

5.0

5.9

8.0

10

8.6

7.4

8.0

Nov.

6.7

5.9

6.7

6.3

5.9

5.9

5.4

5.9

5.0

5.9

5.9

5.9

5.9

6.3

6.3

6.3

6.3

6.7

6.3

5.9

5.0

5.0

5.9

6.7

5.9

4.6

4.2

4.2

4.2

-

Dec.

3.5

3.5

3.5

3.5

3.8

3.8

4.2

5.4

6.7

6.3

6.3

6.3

5.4

5.9

5.9

5.0

4.6

5.0

4.6

3.8

3.5

3.5

3.5

4.6

7.4

8.0

5.4

5.0

3.8

4.2

Jan.

5.9

8.0

6.7

5.4

5.4

5.4

5.0

4.6

3.5

2.7

2.5

2.7

2.5

2.7

2.5

2.2

2.2

2.0

2.5

2.7

2.7

2.0

2.0

2.0

3.1

3.8

4.2

6.3

5.0

5.4

Feb.

5.4

5.9

5.9

6.3

7.4

7.4

5.9

5.9

5.9

5.4

5.9

5.4

6.3

6.3

5.9

6.3

5.4

4.2

3.8

3.8

3.5

4.2

3.5

3.1

5.0

4.6

3.1

.

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

May........................................

September. .................................

Water year 194S-47 ......................

Mar.

3.8

4.2

2.7

2.2

1.5

1.5

1.7

2.2

3.1

4.2

4.2

3.5

2.2

1.7

2.0

2.7

4.6

3.5

2.0

2.2

2.7

3.8

3.1

2.2

2.2

2.7

3.1

2.7

2.7

2.7

Apr.

2.2

2.7

3.1

5.4

5.4

3.8

2.0

2.2

2.2

3.5

2.5

2.7

4.6

4.2

2.7

2.2

1.5

1.3

1.3

1.5

1.7

2.2

2.2

2.0

1.5

2.0

2.0

1.5

1.3

-

Secondfoot-days

149.7

8,689.6

174,5

2,679.6

May

1.2

l.C

.S

.s

.S

.9

.9

1.2

1.2

1.7

1.7

1.3

1.3

2.C

2.2

2.0

1.2

1.3

1.3

30

12

5.4

2.C

1.5

1.3

1.2

1.5

1.3

.3

.6

Maximum

32

8.0

817

.6

131

281

June

0.5

.6

.5

.4

.2

.1

.1

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Minimum

3.5

0

0

0

July

0

0

0

55

86

22

.7

.5

.3

.1

0

0

O

.3

0

0

0

0

68

38

a5

a2

al

0

0

0

0

0

o

0

Aug.

0

0

0

11

.2

.2

281

244

6.7

.4

13

56

.3

71

70

9.3

5.0

4.2

7.4

50

rs.9

fl.2

f.6

f.4

f.3

.2

.2

225

87

f!7

lf«an

4.83

23.8

2.76

.08

5.82

7.34

Sept.

a5

a2

al

al

0

fll

al

a. 5

.1

0

0

0

0

. O

0

0

0

131 ri3

1.3

1.0

.6

.6

.4

.2

.2

.2

.2

.2

-

Runoff in 

acre-feet

342

297

17,220

236

170

5.0

2,330

346

5,310

Peak discharge.- July 5 (7 p.m.) 1,160 sec.-ft.; July 20 (4:30 p.m.) 95O sec.-ft.; Aug. 8 

(10:30 p.m.) 2,460 sec.-ft.; Aug. 15 (10 a.m.) 354 sec.-ft.; Aug. 29 (6:30 p.m.) 2,550 sec.-ft.; 

Sept. 19 (4 p.m.) 1,450 sec.-ft.

a No gage-height record: discharge computed -"n basis of adjoining record and normal recession trends.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
382 GILA RIVER BASIN

Santa Cruz River at Tucson, Ariz.

Location.- Water-stage recorder, lat. 32°13'15", long. 110°b8'50", in NE^NE^ sec. 14, 

T. 14 S., R. 13 E., at Congress Street Bridge in Tucson. Datum of gfge is 2,327.16 

feet above mean sea level, datum of 1929.

Drainage area.- 2,190 square miles, of which 403 square miles is in Mexico.

Records available.- October 1905 to September 1947. Prior to October 1917 daily discharge record fragmentary; monthly discharge frequently estimated from information 

available to complete period. Records of monthly discharge prior to October 1938 

have been republished in Water-Supply Paper 1049.

Average discharge.- 42 years (1905-47), 21.8 second-feet; median of yearly mean discharges, 15.2 second-feet.

Extremes.- Maximum discharge during year, 2,960 second-feet Oct. 1 (gage height, 7.20 

feet) ; no flow during greater part of year.

1905-47: Maximum discharge, about 15,000 second-feet Dec. 23, 1914, from rating 

curve extended above 9,000 second-feet; no flow during greater part cf each year.

Remarks.- Records good except those for periods of 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 ard mining.

Discharge, in second-feet, water year October 1946 to September 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.

1,140

28

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

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

16

7

0

0

0

0

0

Dec. Jan. Feb.

Month

October. ...................................

November. ........................ . . . ....

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March ......................................

April. .....................................

May........................................

June .......................................

July... ....................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

19

al

0

0

0

0

1

0

0

0

0

0

0

0

Apr.

Secondfoot-days

1, 168 

23

0

8,412

0

0

21

0

0

0

236

1,405

431

3,284

May

Maximum

1,140

16

0

1,340

0

0

19

0

0

0

173

299

229

1,140

June

Minimum

(

(

(

(

Cc

Ccc

c

c

c

c

c

July

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

14

6

0

0

0

0

0

0

173

42

al

Aug.

0

0

0

0

31

al

0

67

127

299

al

64

95

111

178

56

75

a4

al

aO

a2

12

00

00

0

0

0

0

0

21

260

Mean

) 37.7

1 8

) 0

) 23.0

) 0

) 0

) .7

) 0

) 0

) 0

7.6

) 45.3

) 14.4

) 9-0

Sept.

a3

0

0

0

0

61

15

11

0

0

0

0

0

0

0

0

0

0

78

229

34

0

0

0

0

0

0

0

0

0

Runoff in 

acre-feet

2,320

46

0

16 , 700

0

0

42

0

0

0

468

2 'ess 790

6,520

Peak discharge.- Oct. 1 (1:30 p.m.) 2,960 sec.-ft.j July 29 (7:30 p.m.) 1,630 sec.-ft.; Aug. 10 

(3 a.m.) 1,690 sec.-ft.} Aug. 14 (4 p.m.) 1,270 sec.-ft.j Aug. 31 (1:30 a.m.) \,yo sec.-ft.; Sept. 

19 (10:30 p.m.) 1,270 sec.-ft.

a No gage-height record; discharge computed on basis of adjoining record and field estimates of 

low discharge.
GILA RIVER BASIN 383 

Santa Cruz River at Rillito, Ariz.

Loca-bion.- Water-stage recorder, lat. 32°24'05", long. 111 0 08'25", in ME$SWt sec. 8; T. 

J.2 S.. R. 12 E., 1 mile southeast of Rillito, 7-f miles downstream from Canada del Oro, 

and 8f miles downstream from Rillito Creek. Datum of gage is 2,052.33 feet above mean 

sea level, datum of 1929. Supplementary water-stage recorder 900 feet downstream at 

datum 1.10 feet higher; referred to as lower gage.

Drainage area.- 3,520 square miles.

Records available.- October 1939 to June 1947 (discontinued).

Extremes.- Maximum discharge during year, 7,500 second-feet Aug. 15 (gage height, 11.8 

I'eet, upper gage), from recorded peak after station was discontinued; no flow during 

greater part of year.

1939-47: Maximum discharge, 17,000 second-feet Aug. 14, 1940 (gage height, 9.9 

feet, lower gage); no flow during greater part of each year.

Remarks.- Records fair. Many diversions above station for irrigation. Lo-ter gage not 

used during year.

Discharge, in second-feet, water year October 1946 to September 1917

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,190

40

1

o

0

0

o

o

.1

0

0

0

0

0

o

0

o

0

o

o

o

0

0

0

0

0

0

0

0

0

0

Nov.

O

0

0

0

0

o

0

0

0

o

0

o

0

0

0

0

0

0

0

0

0

<y

0

20

17

o

0

o

o

0

-

Dec. Jan. Feb.

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .......:.............................

September ..................................

The juried ...............................

Mar. Apr.

Secondfoot-days

1,231.1

37

O

9,511.1

0

0

0

0

0

0

_

-

May

Maximum

1,190

20

0

1,820

0

O

o

0

o

0

_

_

-

June

Minimum

0

0

0

0

o

0

o

o

o

o

_

_

-

July Aug.

Mean

39.7

1.2

0

26.1

0

0

0

O

0

0

_

_

-

Sept.

Runoff in 

acre feet

2,440

73

0

18,860

0

0

0

0

0

0

_

_

2,510

Peak discharge.- Oct. 1 (2 p.m.) 3,600 sec.-ft.; Aug. 15 (2:30 p.m.) 7,5OO sec.-f 1-..
384 GILA RIVER BASIN

Sonoita Creek near Patagonia, Ariz.

Location.- Water-stage recorder, lat. 31°30'00", long. 110°49'00", in SE^SWi sec. 21, T. 

VV 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 1947. Records of 

montniy discharge prior to October 1938 have been republished in Water-Supply Paper 

1049.

Average discharge.- 15 years (1930-33, 1935-47), 6.83 second-feet.

Extremes.- Maximum discharge during year, 2,360 second-feet Aug. 12 (gage height, 7.60 

reet) ; no flow during part of each day Sept. 26-30.

1930-47; Maximum discharge, 14,000 second-feet Sept. 30, 1946 (ga-ze height, 13.0 

feet), by 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 prior to July 16 and fair thereafter, except thoss for periods of 

fragmentary or no gage-height record, which are poor. Several small diversions above 

station for irrigation and mining.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

fi

7

8

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

5

5

4

4

3.2

3.2

3.0

3.2

3.0

2.8

2.8

2.9

2.9

2.9

2.8

2.9

2.9

2.9

2.8

2.8

2.8

2.8

2.6

2.6

2.4

2.9

2.9

2.8

2.6

2.6

Nov.

2.4

2.4

2.4

2.4

2.4

2.3

Z. 4

2.6

2.6

2.6

2.6

2.6

2.6

2.8

2.8

2.8

2.6

2.6

2.6

2.6

2.8

2.8

2.9

3.0

3.2

3.2

3.2

3.2

3.5

3.5

-

Dec.

3.5

3.5

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.7

4.0

4.0

4.0

4.0

Jan.

3.7

3.7

3.7

3.7

3.7

3.7

3.5

3.5

3.5

3.5

3.7

3.7

3.7

4.0

4.0

4.0

4.0

4.0

4.0

4.0

3.7

3.7

3.7

3.7

3.7

3.7

3.5

3.5

3.7

4.0

3.7

Feb.

3.7

3.7

4.0

4.0

4.0

3.7

3.7

3.7

4.3

4.3

4.6

4.6

4.3

4.3

4.3

4.3

4.6

4.6

4.8

4.6

4.6

4.6

4.6

4.8

4.8

4.8

4.8

4.8

_

_

-

Month

December ...................................

Calendar "year 1946 ......................

April. .....................................

May. .......................................

July. ......................................

September. .................................

Water year 1946-47 ......................

Peak discharge.- July 20 (3:30 D.m. } 1.860

Mar.

4.8

4.8

4.8

4.8

4.6

4.6

4.8

4.8

4.8

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.5

4.4

4.3

4.3

4.0

4.0

4.0

3.7

3.7

3.5

3.2

3.2

3.2

3.1

Apr.

3.1

3.1

3.0

3.0

3.0

3.0

2.9

2.9

2.9

2.9

2.8

2.8

2.8

2.8

2.7

2.7

2.7

2.7

2.7

2.6

2.6

2.6

2.6

2.5

2.5

2.5

2.5

2.5

2.4

2.4

-

Second 

foot-days

113.1

3,280.5

132 7

150.7

1,461.9

May

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.0

1.7

1.6

1.7

1.8

1.8

1.6

1.6

1.8

1.7

1.8

1.8

1.7

1.4

1.3

1.2

1.1

1.2

1.2

1.1

1.0.

Maximum

4.0

1,120

94

144

sec. -ft. j Aug. 12 (2 p

June

1.0

1.0

1.0

1.0

.9

.9

.8

.9

.8

.8

.7

.7

.7

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.6

.7

.6

.6

.5

.4

-

Minimum

3.5

0

.5

.2

July

0.4

.4

.6

.9

1.0

1.5

1.0

.8

.7

.6

.4

.3

.3

.7

12

f.8

f.6

f.5

f.5

144

tr

£ 

1

.8

.7

.6

.5

.4

.3

.3

.2

Aug.

0.2

fl.7

f.3

20

f2.0

f.8

3.1

4.0

3.3

2.2

2.4

133

2.0

1.8

41

3.0

1.8

1.4

1.0

.8

6.6

f.8

f.5

f.4

f.4

f.4

.4

24

7.1

4.0

2

Mean

2 75

3.65

8.99

73

5.02

4.01

Sept.

1

.8

.7

.6

.5

14

f2.8

f2.2

fl.7

1.3

fl.2

fl.2

fl.l

fl.l

fl.l

fl.l

fl.2

fl.4

94

3.5

2.6

2.2

2.2

2.0

1.7

1.4

1.5

1.6

1.4

1.6

Runoff in 

acre- feet

224

6,510

230

43

299

2,900

.m. ) 2,360 sec. -ft.

f Fragmentary gage-height record; discharge computed from vholly or partly estimated gage heights.

Mote.- No gage-height record Oct. 2-5, Mar. 18-2O, Mar. 30 to Apr. 8, Apr. 1O to May 8, July 21 to 

Aug. 1, Aug. 31 to Sept. 5; discharge computed on basis of adjoining record, recorded range in stage, 

or by interpolation.
GILA RIVER BASIN 385

Tucson Arroyo at Vine Avenue, Tucson, Ariz.

Location.- Water-stage recorder and concrete low-water control, lat. 32°13'05", long. 

HOT?100", in SW^NEt sec. 18, T. 14 S., R. 14 E., at Vine Avenue, a quarter of a mile 

downstream from Arroyo Chico and 2i 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 1947.

Extremes.- Maximum discharge during year, 172 second-feet at 12:01 a.m. Oct. 1, stage 

railing, peak occurred previous day (discharge, 519 second-feet); no flow during 

greater part of year.

1944-47: Maximum discharge, 877 second-feet July 28, 1945 (gage height, 6.98 feet); 

no flow during greater part of each year.

Maximum discharge known, 2,700 second-feet Aug. 13, 1940, Sept. 24, 1943 (gage 

height, 9.2 feet, from floodmarks), from rating curve extended above 650 second-feet 

by logarithmic plotting.

Remarks.- Records good.

Discharge, in second-feet, water year October 1946 to September 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.

10

o

0

0

0

0

o

o

o

0

0

o

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

o

o

0

0

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0

24

.3

0

0

0

o

0

-

Dec.

0

0

0

0

0

o

0

o

0

0

o

0

0

0

0

0

o

0

0

0

0

0

o

0

0

.2

0

0

0

0

0

Jan. Feb.

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

May. .........:.............................

September ..................................

Water year 1946-47 ...... ,^ ..............

Mar. Apr.

Secondfoot-days

24 3

.2

334.3

.5

42.4

May

Maximum

.2

81

.5

24

June

Minimum

0

0

0

0

July Aug.

O

o

o

0

o

0

o

7.0

o

0

0

o

o

0

.4

o

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1'oan

.01

.92

0

.02

.12

Sept.

0

0

0

0

0

0

o

.5

0

0

0

o

o

o

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0 -

Runoff in 

acre- feet

20

.4

663

0

0

0

1.0

84.4
386 GILA RIVER BASIN

Rillito Creek near Tucson, Ariz.

Location. - Water-stage recorder, lat. 32°17'40", long. 110°59'05", in SW-J-SE^ sec. 14, 

T. 13 S., R. 13 E., 1,100 feet downstream from Pima Canyon 1,800 feet downstream 

from bridge on U. S. Highway 89, 4^ miles upstream from mouth, and 5 iriles north 

of Tucson. Datum of gage is 2,288.25 feet above mean sea level, datuir of 1929.

Drainage area.- 916 square miles.

Records available.- October 1908 to September 1947 (prior to October 1917, monthly 

discharge only). Records of monthly discharge prior to October 1938 have been republished in Water-Supply Paper 1049.

Average discharge.- 39 years (1908-47), 21.7 second-feet; median of yearly mean discharges, 9.0 second-feet.

Extremes.- Maximum discharge during year, 7,660 second-feet Aug. 15; no flow during 

greater part of year.

1911-47: Maximum discharge, 28,000 second-feet Dec. 23, 1914, estimated by 

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 above SO second-feet and fair below. 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 1946 to September 1947

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

?4

25

26

27

28

29

30

31

Oct.

68

.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

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

0

0

0

0

0

321

0

0

0

0

0

-

Dec. Jan. Feb.

Month

December. ..................................

Calendar year 1946 ......................

January

March. ......................................

May........................................

September. .................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot days

68.3

33

0

1,597.3

74

2,075.3

May

Maximum

68

32

0

497

36

898

June

Minimum

C

C

C

C

C

C

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

1

0

Aug.

0

0

0

0

0

0

0

650

87

0

0

243

15

7

888

0

0

0

0

0

4

4

0

0

0

0

0

0

0

1

0

l'«an

) 2.20

) 1.1

) 0

) 4.38

2.5

5.69

Sept.

0

0

0

0

0

0

0

33

0

0

0

0

0

0

0

0

0

0

36

5

0

0

0

0

0

0

0

0

0

0

Runoff in 

acre-feet

135

65

0

3,160

147

4,120

Peak discharge.- Aug. 8 (7 p.m.) 5,740 sec.-ft. ; Aug. 12 (8 p.m.) 3,530 see.-ft.j Aug. 15 (1 p.m.) 

7,660 sec.-ft.
GILA RIVER BASIN 387

Sabino Creek near Tucson, Ariz.

Location - Water-stage recorder and concrete control, lat. 32°19'00", long. 110°48'35" ) 

IrTSEpE^ 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.- 35,0 square miles.

Records available.- July 1904 to June 1912 (monthly discharge only), June 1932 to Septemoer J.94Y. Records of monthly discharge prior to October 1938 have teen republished in 

Water-Supply Paper 1049.

Average discharge.- 22 years (1904-11, 1932-47), 12.7 second-feet.

Extremes.- Maximum discharge during year, 227 second-feet Dec. 26 (gage height, 3.47 

reet); no flow May 25 to Aug. 8.

1932-47: 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. No diversion above station. Slight regulation since 1933 

by several small dams constructed to provide recreational lakes.

Discharge, in second-feet, water year October 1946 to September 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.

27

13

8.7

6.6

5.4

4.6

4.1

3.4

3.4

4.1

3.9

3.0

2.6

2.2

2.1

1.9

1.6

1.5

1.4

1.2

1.0

.9.'9

.8

.8

.7

.7

.8

.9

.8

.8

Nov.

0.8

.8

.8

.8

.8

.8

.8

.7

.6

.7

.7

.6

.6

.6

.8

1.6

2.4

2.1

1.6

1.4

1.3

1.0

.9

4.3

25

8.0

4.6

3.2

2.4

1.9

-

Dec.

1.8

1.6

1.4

1.3

1.3

1.2

1.0

1.0

.9

.8

.8

.8

.7

.7

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

36

61

16

8.3

5.7

4.1

Jem.

3.6

3.2

3.0

2.8

2.6

2.4

2.4

2.2

2.2

2.1

2.1

1.9

1.9'

1.9

1.8

1.8

1.6

1.6

1.6

1.5

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

Feb.

1.0

1.0

1.0

1.0

.9

.8

.8

.8

.8

.8

.8

.8

.7

.7

.6

.5

.5

.5

.4

.4

.4

.4

.4

.3

.3

.3

.4

.6

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

Janu 

Febr

ary. ................................. .

uarv. .................. ... . March. .......................... ..........

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

0.7

.7

.6

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.1

.2

.09

.07

Apr.

0.09

.07

.07

.07

.07

.07

.05

.05

.05

.04

.04

.04

.04

.04

.04

.03

.03

.03

.03

.04

.04

.03

.03

.03

.02

.02

.02

.02

.02

.02

-

Seoondfoot-days

110.8

72.6

151.2

2,023.30

58.8 

17 9

9. 26

1.24

 25

0

0

105.6

11.49

539.14

May

0.02

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

0

0

0

0

0

o

0

Maximum

27

25

61

155

3.6 

1.0

.7.'02 09

0

0

20

1.5

61

June

Minimua

0.7

.6

.4

0

1.3 

.3

.07

.02

0

0

0

0

.03

0

July Aug.

0

0

0

0

0

0

0

7.1

9.0

3.0

1.8

1.4

5.7

4.5

20

14

5.2

2.6

1.8

1.5

2.1

9.3

5.4

3.0

1.9

1.5

1.2

.9

.8

.9

1.0

Mean

3.57

2.42

4.88

5.54

1.90 

.64

 299

.041

o' 008

0

3.41

.383

1.48

Sept.

1.5

.8

.7

.S

.4

.3

.3

1.5

1.3

.9

.8

.4

.2

.2

.2

.2

.2

.2

.2

.2

.1

.07

.05

.05

.05

.04

.04

.03

.03

.03

Runoff in 

acre-feet

220

144 

300

4,010

117

36

X8 2 5'.5

0

0

209 

23

1.070
388 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, Sf 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 1947. Records of monthly discharge prior 

to octooer lyaa have been republished in Water-Supply Paper 1049.

Average discharge.- 23 years, 631 second-feet.

Extremes.- Maximum discharge during year, 8,160 second-feet Sept. 18 (gage height, 6.97 

reet); minimum', 73 second-feet Aug. 4 (gage height, 1.27 feet).

1924-47: 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).

Flood 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 period of no gage-height record, which are 

rair. Several small diversions above station for irrigation and one transmountain diversion from Black River to Eagle Creek Basin for mining and treatment of ore (see 

p. J/4).

Discharge, in second-feet, water year October 1946 to Septesber 1947

Day

1

2

3

4

5

6

7

8

9

IP

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

408

391

379

340

324

309

289

279

265

256

247

238

234

229

217

210

198

194

190

190

187

183

180

176

176

173

173

180

229

391

391

Nov.

403

319

284

270

256

256

242

265

279

274

274

260

270

284

335

374

362

352

335

324

314

304

289

560

874

916

781

664

619

569

-

Dec.

535

501

482

451

432

432

432

432

420

403

385

368

352

335

330

324

309

289

284

265

247

242

242

260

265

270

294

550

881

482

385

Jan.

346

309

319

279

217

225

256

279

274

256

242

238

238

260

270

265

242

229

238

225

225

221

221

225

225

221

225

234

242

252

247

Feb.

238

238

247

247

252

256

270

289

309

324

335

340

340

352

368

397

426

444

444

426

414

408

385

374

368

374

426

470

_

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January. ................................. .

February. .................................

March.. ....................................

April.. ....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

470

463

432

426

414

403

397

391

385

391

379

391

408

414

420

432

451

495

501

508

528

555

598

612

612

619

641

664

679

694

687

Apr.

664

641

627

627

598

576

562

542

501

482

463

451

438

426

408

397

391

391

397

403

408

414

403

391

379

357

340

324

319

309

-

Second 

foot-days

7,826

11,908

11,879

138,727

7,745

9,761

15,460

13,629

9,751

3,598

2,994

9,496

19,765

123,812

May

299

294

294

299

314

314 

319

314

314

346

476

470

444

391

357

346

335

319

294

279

270

260

385

314

284

274

256

242

229

217

202

Maximum

408

916

881

7,200

346

470

694

664

476

190

135

629

3,500

3,500

June

190

180

170

163

153

147

141

132

129

126

121

113

110

105

103

103

100

100

105

116

110

110

113

110

103

98

93

88

84

82

-

Minimum

173

242

242

67

217

238

379

309

202

82

79

77

150

77

July

82

79

79

82

84

86

as

93

lo£

10E

103

10C

93

9?

IS?

121

11C

11?

10C

9f

9f

93

10?

10F

9F

9f

93

919r

8f

84

Aug.

82

82

79

77

306

234

234

255

240

242

225

183

236

534

464

629

538

384

306

280

306

291

322

356

384

328

317

312

410

420

440

Mean

252

397

383

380

250

349

499

454

315

120

96.6

306

659

339

Sept.

650

520

430

400

340

330

330

280

320

270

230

210

190

175

165

155

150

2,450

3,500

2,100

1,700

1,080

821

638

534

444

390

350

317

296

-

Runoff in 

acre-feet

15,520

23,620

23,560

275,200

15,360

19,360

30,660

27,030

19,340

7,140

5,940

18,830

39,200

245,600

Peak discharge.- Sept. 18 (about 7 p.m.) 8.160 sec. -ft.: Sept. 21 (9:30 a.m.) 2.520 sec. -ft.

Note.- No gage-height record Aug. 30 to Sept. 19; discharge computed on basis of recorded range In 

stage and records for station near Roosevelt.
GILA RIVER BASIN 389

Salt River near Roosevelt, Ariz.

 Location.- Water-stage recorder, lat. 33°37' , long. 110°55', in NE£ 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 square miles.

Records available.- January 1913 to September 1947. Records of monthly discharge prior 

to uctober 1938 have been republished, with some additions and revisions, in WaterSupply Paper 1049.

Average discharge.- 34 years, 942 second-feet.

Extfcmes.- Maximum discharge during year, 6,170 second-feet Sept. 19 (gage height, 13.88 

feet); minimum, 79 second-feet Aug. 2-4.

1913-47: Maximum discharge, 117,000 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 except those for Aug. 5 to Sept. 10, whicl- are good. Several 

small diversions above station for irrigation and one tranemountain diversion from 

Black River to Eagle Creek Basin. Records show inflow to Roosevelt Reservoir. See 

page 393 for records for Tonto Creek, which alpo contributes to Roosevelt Reservoir.

Discharge, in second-feet, water year October 1946 to Septembe- 1947

Day

1

?

3

4

5

6

7

8

9

10

11

12

13

14

15

Ifi

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

510

470

444

419

394

370

347

335

319

302

 285

274

269

258

248

237

227

222

217

212

217

212

203

198

193

193

193

203

305

372

436

Nov.

425

406

347

319

296

291

291

291

330

335

324

3-19

291

313

406

4S3

470

457

432

406

388

382

370

591

1,230

1,170

1,040

895

780

712

-

Dec.

664

625

580

552

517

503

483

483

476

463

444

419

406

388

376

370

359

347

330

330

319

302

296

296

307

319

432

1,260

1,290

976

625

Jan.

515

468

422

402

358

310

301

334

348

338

318

310

30&

310

329

334

319

296

292

292

278

278

274

274

274

274

274

283

296

315

315

Feb.

310

306

306

310

315

324

334

358

392

427

453

458

463

453

463

478

505

521

532

526

500

484

473

458

442

437

521

642

-

-

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April ................................... .

May........................................

July. ......................................

September. ... .............................

Water year 1946-47 ... - . .......... ....

Mar.

630

582

560

537

532

521

500

494

489

478

473

468

468

489

494

489

500

526

554

554

571

588

630

667

680

674

686

705

724

738

738

Apr.

724

686

674

667

648

624

624

594

560

521

500

478

453

442

432

417

402

407

402

412

417

417

422

407

397

382

367

348

334

324

-

Secondfoot-days

9 084

15,537

170,398

3 812

20,589

143,428

Hay

319

310

310

310

329

338

343

338

338

348

453

515

489

468

412

377

372

358

334

310

296

292

274

382

310

292

278

252

244

231

219

Maximum

1,290

12,800

3,900

3,900

June

207

199

184

180

169

158

151

144

134

127

124

115

112

109

103

100

103

103

103

106

109

115

gl!5

gl!5

gl!2

gl!2

g!09

g!03

g97

g94

Minimum

291

296

76

324

94

89

169

82

July

g92

92

94

92

89

92

100

103

100

106

109

109

106

103

103

127

134

115

109

109

103

100

100

103

109

103

94

97

94

97

94

Aug.

84

82

82

84

84

259

244

368

329

261

256

244

283

338

843

829

842

630

448

372

436

377

329

387

407

402

424

348

383

515

577

Mean

£93

493

501

467

337

686

393

Sept.

586

618

505

412

417

329

401

292

343

315

269

248

223

199

188

176

169

510

3,900

2,660

1,850

1,430

1,010

795

648

538

465

g408

g358

g325

-

Runoff in 

acre- feet

29 340

30,820

338,000

40,840

284,500

Peak discharge^- Sept. 19 (6:30 a.m.) 6,170 sec.-ft.j Sept. 21 (8:30 p.m.) 2,280 sec.-ft. 

g Computed from graph based on tvice-daily gage readings"and recorded range In stage.
390 Gir,A 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 River: 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 downstreair from Roosevelt 

Dam; Canyon Lake, formed by Mormon Flat Dam, 26 miles downstream from Roosevelt Dam; 

Sahuaro Lake, formed by Stewart Mountain Dam, 36 miles downstream from Roosevelt Dam.

Drainage area.- 6,220 square miles at Stewart Mountain Dam.

Records available.- July 1910 to September 1947 (prior to October 1934, contents at end 

or each montn only, published in Water-Supply Paper 1049).

Extremes.- Maximum contents of system during year, 444,900 acre-feet Oct. 1; minimum, 

Z2TT79W) acre-feet Sept. 29.

1910-47: Maximum contents, 1,764,000 acre-feet May 22, 1941; miniirum, 20,680.acrefeet Sept. 16, 1940.

Remarks.- Total capacity of the four reservoirs is 1,755,000 acre-feet (revised), divided 

as follows: Roosevelt Lake, 1,382,000 acre-feet (revised on basis of silt survey made 

in spring of 1947); Apache Lake, 245,000 acre-feet; Canyon Lake, 58,000 acre-feet; 

Sahuaro Lake, 70,000 acre-feet. Dams forming these reservoirs were built as follows: 

Roosevelt 1905-11; Horse Mesa 1924-27; Mormon Flat 1923-25; Stewart Mountain 1928-30. 

Records given herein represent usable 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 because 

of capacity storage has occurred only during following periods: Apr. 15 to Jane 21, 

1915, Jan. 19 to May 30, 1916, Apr. 21 to June 7, 1917, Feb. 17 to June 3, 1920, 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 1946 to September 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.

444.9

443.0

441.5

439.7

437.9

436.0

434.3

432.0

429.8

427.7

425.6

423.8

422.2

420.4

418.5

416.9

415.7

414.1

412.6

411.5

410.3

408.8

407.5

406.0

4O4.9

403.6

402.3

400.9

399.7

399.3

396.8

Nov.

397.8

397.2

396.9

396.5

395.7

394.4

393.3

392.5

391.7

331.1

390.7

390.1

389.5

389.5

390.9

392.0

392.2

393.2

393.6

393.9

393.9

393.6

393.0

395.1

396.9

399.7

401.6

402.8

403.9

404.6

-

Dec.

405.2

404.8

405.2

405.3

405.1

404.9

404.8

404.6

404.5

404.5

404.2

404.1

404.0

403.9

403.4

402.9

402.3

401.7

401.1

400.1

399.4

398.6

398.2

397.7

396.8

395.5

396.9

408.1

412.8

414.7

403.0

Jan.

405.1

406.9

408.2

409.3

410.5

411.5

412.4

412.3

412.3

412.2

412.2

412.2

412.0

412.0

411.9

412.2

412.1

412.0

411.8

412.0

411.8

411.4

411.3

411.1

410.8

410.6

410.5

409.9

410.2

410.4

409.9

Feb.

409.8

410.7

410.5

410.5

410.1

410.0

409.7

409.8

409.6

409.4

409.5

409.9

410.0

409.9

409.9

409.9

410.2

409.8

409.7

410.0

410.7

411.0

411.4

412.0

412.6

413.3

414.1

414.9

_

_

-

Mar.

415.1

415.4

415.9

416.5

417.3

417.4

417.4

417.6

417.6

418.0

418.4

417.9

417.4

416.4

415.8

416.2

416.1

415.8

415.1

414.0

413.3

412.5

412.3

411.7

410.9

409.8

408.9

408.0

407.6

407.5

407.6

Apr.

407.1

406.6

405.9

405.7

405.9

406.2

406.4

406.0

404.9

404,3

403.7

402.9

402.2

401.5

400-.3

399.0

397.4

395.7

394.4

393.5

392.4

391.1

389.6

388.5

387.2

386.3

385.9

385.5

384.5

383.0

-

Hay

382.1

381.1

380.0

379.2

378.0

376.7

374.8

373.1

371.5

371.1

370.6

371.1

371.3

371.3

371.2

371.2

370.9

370.8

370.8

370.2

369.2

368.5

367.5

366.9

366.3

366.1

365.4

364.2

363.1

361.9

360.6

June

359.9

359.0

357.4

356.0

354.5

353.0

351.5

350.0

348.6

347.3

345.3

343.5

342.0

340.7

339.4

337.8

335.9

334.2

332.7

331.2

329.5

328.2

327.2

325.7

324.1

322.6

321.2

319.8

318.6

317.6

-

Jul-'

316.4

314.9

312.7

311.1

309.6

308.2

307.3

305.8

304.1

302.2

300.3

298.3

296.6

294.8

293.6

292.7

292.0

290.8

289.4

288.1

286.8

285.5

284.1

282.6

281.2

279.8

278.2

277.0

275.3

273.6

272.1

Aug.

270.6

269.2

267.9

266.4

265.1

264.3

262.9

263.0

262.8

261.9

261.0

261.0

260.2

259.1

258.1

259.3

260.1

260.2

260.2

259.3

258.2

258.2

258.4

258.3

258.1

257.0

255.4

253.5

251.7

249.9

248.2

Sept.

245.8

244.6

243.7

242.3

241.1

239.4

238.0

236.8

235.7

233.7

231.8

230.6

229.3

227.8

226.6

224.9

223.1

224.5

225,6

227.3

229.4

230.1

229.8

228.8

227.9

226.6

225.2

224.1

222.9

225.6

-
GILA RIVER BASIN 391

Salt River below Stewart Mountain Dam, Ar-iz.

Location.- Water-stage recorder, lat. 33°33', long. 111°32', in SE£ sec. 33, T. 3 N., R. 

at:., unsurveyed, in Tonto National Forest, three-quarters of a mile downstream from 

Stewart Mountain Dam and 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 - October 1934 to September 1947. Records of monthly discharge prior 

to October ibtaa have been republished in Water-Supply Paper 1049.

Average discharge.- 13 years, 977 f second-feet.

Extremes (regulated).- Maximum discharge during year, 1,830 second-feet Nov. 1; maximum 

gage neignt, y.ya feet Sept. 2; minimum daily discharge, 19 second-feet Jan. 4, 5. 

1934-47: Maximum discharge, 11,700 second-feet May 7, 1941 (gage h3ight, 15.97 

feet); minimum, 3 second-feet Jan. 8-20, 1935, and for several days in January and 

February 1943.

Remarks.- Records excellent except those for May 10-25, Aug. 15 to Sept. 30, which are 

good. Flow regulated by Stewart Mountain Dam and three other dams (combined capacity, 

1,755,000 acre-feet, see preceding page). Water is available for dive-sion at Granite 

Reef Dam, 13 miles downstream, for irrigation in Salt River Valley.

Discharge, in second-fset, water year October 1946 to Septsmber 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.

1,420

1,300

1,350

1,540

1,510

1,260

1,300

1,510

1,510

1,520

1,450

1,310

1,110

1,140

1,190

1,180

1,140

1,180

1,030

823

830

859

992

1,020

1,030

1,000

874

815

852

794

772

Nov.

828

667

606

681

815

888

911

866

723

619

606

592

592

579

376

271

185

185

266

370

461

519

572

964

318

335

387

364

370

430

-

Dec.

486

545

539

545

545

545

545

552

552

545

552

552

552

579

592

681

744

780

765

794

730

702

653

619

681

1,110

1,050

978

911

844

254

Jan.

20

20

20

19

19

20

51

408

493

500

506

500

500

512

512

506

506

526

526

493

519

526

506

512

512

506

461

526

532

526

512

Feb.

512

49

413

506

526

526

467

461

532

532

539

532

526

526

519

519

519

519

526

519

512

424

442

506

442

442

436

436

_

_

-

Month

October. ...................................

November. ....................... ... ....

December . . ..... .......................

Calendar year 1946 ........... ..........

January .................................

February. .... ................... . . ....

March .............. ......... . ... ......

April .................. . .....

May.............. . ......... ..... .......

June ................ ........ . ..........

July. ... ......... . ...... .... .. .

August ........... ........ ... ... . . .

September. ...'..... .......

Water year 1946-47 .... . . . . ....

Mar.

436

430

424

430

442

436

436

442

442

448

455

566

599

633

579

526

579

653

940

1,060

992

978

780

874

1,150

1,220

1,200

1,150

1,010

744

794

Apr.

815

911

962

716

512

500

526

815

1,040

918

859

844

772

837

1,080

1,220

1,290

1,220

1,130

918

978

1,100

1,130

1,020

1,040

852

606

653

1,000

1,070

-

Secondfoot-days

35,611

15,746

20,522

367,733

12,295

13,408

21,848

27,334

23,226

30,492

28,221

CB.412

29,758

284,875

May

1,010

933

918

859

903

1,040

1,260

1,190

1,080

918

493

296

324

474

539

474

455

424

455

772

866

758

723

667

592

619

702

780

881

933

888

Maximum

1,540

911

1,110

2,040

532

539

1,220

1,290

1,260

1,260

1,110

1,440

1,570

l,57n

June

751

787

955

978

1,010

1,020

1,000

888

918

1,030

1,140

1,220

1,150

1,040

970

1,040

1,240

1,260

1,150

1,070

874

859

933

1,140

1,110

1,080

1,040

1,010

911

918

-

Minimum

772

185

254

6

19

49

424

500

296

751

744

3U2

467

19

July

1,040

1,100

1,080

918

859

76">

823

911

95S

1,080

1,110

1,070

1,060

96?

815

780

744

780

815 SO''

803

815

918

933

918

863

844 76-5

933

1,080 86"

Aug.

815

815

808

815

801

751

709

586

579

572

552

559

572

955

1,090

352

302

674

1,010

1,190

1,260

716

613

599

837

1,100

1,280

1,300

1,330

1,430

1,440

V«an

1,149

525

662

1,007

397

479

705

911

749

1,016

910

852

992

780

Sept.

1,520

1,570

1,070

1,020

1,080

1,040

1,020

1,000

1,020

1,120

1,090

1,060

948

830

881

1,040

1,080

1,040

1,000

667

467

526

815

1,160

1,140

1,100

1,000

852

765

837

-

Pil lOff in 

acre-feet

70,630

31,230

40,700

729,400

24,390

26,590

43,330

54,220

46,070

60,480

55,980

52,393

59,020

565,000

852060 O - 49 - 26
392 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. 

IT! 2fa E. , unsurveyed, on Fort Apache Indian Reservation, 2 miles downstream from Paradise Creek, 6-J miles southeast of McNary. Altitude of gage, 7,750 feet (from Indian

Irrigation Service river-profile map).

Drainage area.- 74 square miles.

Records available.- June 1945 to July 1947 (discontinued).

Extremes.- Maximum discharge during period October 1946 to July 1947, 219 second-feet

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

whi'.'ti are poor. No diversion above station.

Discharge, In second-feet, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

R

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

2R

29

30

31

Oct.

68

66

59

59

56

51

47

44

42

42

38

37

35

33

31

30

29

27

26

23

21

20

*19

18

18

18

21

27

110

60

44

Nov.

37

33

33

}

330

31

31

36

36

40

42

*39

36

34

*29

26

27

64

55

54

47

45

44

42

-

Dec.

41

39

38

38

41

45

47

41

37

40

33

37

30

29

28

22

26

*28

25

26

24

28

24

19

18

19

21

13

10

10

10

Jan.

I'

1"

\

>

*16

V

> 15

I

/

10

Feb.

10

15

15

20

24

30

30

27

29

31

a34

a36

a37

a37

*37

35

31

33

36

35

33

30

29

_

*.

-

Month

December. ..................................

Calendar year 1946 .... .................

May

September. ... ... ............. .... ....

The period ......... .... ... ....

Mar.

28

29

26

26

26

24

26

23

25

24

28

29

25

28

33

54

58

49

52

58

69

73

66

70

73

77

77

84

86

82

74

Apr.

Secondfoot-days

887

14,760

391

_

.

+ Wintr-r Uls^h-irgH mfnsur^mant mudf- on thin ddy.

75

76

74

71

71

74

71

65

62

60

57

56

55

54

56

59

61

67

71

72

74

71

68

62

57

55

53

50

49

49

-

May

50

56

64

71

74

75

76

76

79

124

113

101

88

82

82

86

78

71

69

68

67

71

71

71

65

64

61

59

54

49

46

Maximum

47

805

37

19

-

_

June

42

40

38

36

35

31

29

26

26

23

22

22

20

19

18

17

18

24

20

18

16

16

15

14

13

13

12

11

10

10

-

Minimum

18

10

_

10

46

' -

_

July

10

12

15

13

13

14

15

19

15

13

_

-

_

-

-

_

_

_

-

-

_

_

_

_

-

_

-

-

_

-

Aug. Sept.

 Runoff in Mean acre-feet

28.6 1,760

40.4 29,280

-

21,470

j. No gige-hPlght rei-nrd; dlschirgp romjutert on trisls of we-ithT records and records fur stattouj

Note^- Stage-discharge relation affected by Ice Nov. 15-22, Dec. 17, 18, Dec. 29 to Feb. 15 (no 

gage-height record Jan. 1 to Feb. 9; discharge computed on basis of 4 discharge measurements, 

weather records, and records for stations on Little Colorado River above Lyman Reservoir and Salt 

River near Chrysotlle.
GILA RIVER BASIN 393

Tonto Creek above Gun Creek, near Roosevelt, Ariz.

Location.- Water-stage recorder, lat. 33°59', long. 111°18', in NE^-SW^ sec. 2, T. 7 N., 

 R . 10 E . , in Tonto National Forest, 600 feet upstream from Gun Creek, 23j 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 1947. January 1913 to December 1940 at 

sTfc'e 1U mileo downstream, published as Tonto Creek near Roosevelt. Records of monthly 

discharge prior to October 1938 have been republished, with some additions , in 

Water-Supply Paper 1049.

Extremes.- Maximum discharge during year, 7,130 second-feet Dec. 28 (gage height, 8.78 

feet ) ; no flow for several days during summer.

1940-47: Maximum discharge, 32,000 second-feet Mar. 14, 1941 (gage height, 15.1 

feet), by slope-area method; n>~' flow for short perioJs in several years.

Remarks . - Records excellent except those above 400 second-feet and those below 15 secondfeet , which are good. Small diversions above station for irrigation.

aber 19'7

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

48 

41 

34 

31

30 

27 

26 

24 

23

21 

20 

20 

20 

19

18 

18 

17 

17 

17

16 

16 

16 

17 

17

16 

16 

20 

31 

56 

41

Nov.

36 

31 

28 

26 

24

23

21 

26 

30 

31

34 

33 

33 

41 

887

292

173 

131 

106 

86

77 

67 

65 

282 

486

232

161 

127 

110 

96

Dec.

84 

77 

71 

65 

62

58 

55 

53 

49 

48

44 

41 

41 

39

37

37 

36 

33 

31 

31

30 

28 

28 

28 

27

34 

629 

4,040 

1,010 

505 

322

Jan.

233 

194 

160 

121 

114

105 

95 

86 

74 

72

69 

65 

67 

110 

170

152 

116 

108 

97 

84

78 

72 

67 

63 

61

59 

58 

56 

74

76 

67

Feb.

63 

59 

59 

58 

58

61 

65 

69 

74 

76

70 

65 

63 

59 

58

58 

58 

56 

52 

49

46 

43 

41 

40 

38

38 

47 

88

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

Uflv

June 

July 

Augu 

Sept

Wa

ber... .......................... ...

mber. ............. .... . .

lendar year 1946 ......................

ary. ....

h. ................. .... .... . . .

1. .......... .... . .

St. ........... ... .... . . .

ter year 1946-47 .... .........

Mar.

86 

69 

59 

56 

56

52

51 

49

46

46

44

41 

41 

43 

40

40 

40 

41 

43 

44

44

46 

44 

43 

40

38 

37 

34 

33 

33 

31

Apr.

30 

30 

30 

30 

30

29 

27 

28 

27 

28

24

21 

19 

18 

18

18 

18 

18 

17 

17

16 

16 

16 

16 

16

18 

16 

15 

15 

15

Secondfoot-days

779 

3,795 

7,673

29,312.6

3,025 

1,611 

1,410 

636 

393.3 

61.0 

69.1 

3,637.5 

261.2

23,351.1

Hay

14 

13 

12 

12 

11

11 

10 

9.B 

9.2 

28

29 

27 

18. 

16 

15

15 

15 

13 

12 

11

9.8 

9.2 

9.2 

10 

9.8

8.2 

8.7 

7.2 

7.2 

6.7 

6.3

Maximum

56 

887 

4,040

4,070

233 

88 

86 

30 

29 

6.3 

46 

872 

26

4,040

June

6.3 

6.0 

5.6 

5.6 

4.9

4.2 

3.8 

3.5

3.1 

2.6

2.6 

2.4 

2.1 

1.9 

1.7

1.2 

.9 

1.2 

1.2 

.2

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

16 

21 

27

0

56 

38 

31 

15 

6. 

0 

0

2!

July

0 

0 

0 

0 

0

0 

0 

.2 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

46 

9.9 

2.9 

2.4

1.9 

1.7 

1.4 

1.2 

.£ '.B

Aug.

0.5 

.4 

.2 

.2 

43

16 

6.3 

36 

25 

26

6.0 

4.9 

200 

166 

46

872 

580 

240 

101 

59

218 

403 

254 

96 

60

44 

35 

34 

26

21 

18

Ho*n

25.1 

.126 

*248

80.3

97.6 

57.5 

45.5 

21.2 

5 12.7 

2.03 

2.23 

1 117 

3 8.71

3 64.0

Sept.

20 

26 

16 

12

10

8.0 

8.4 

8.8 

11 

11

9.8 

8.0 

6.9 

6.1 

5.0

4.7 

4.5 

3.9 

4.7 

12

13 

9.3 

9.3 

8.0 

5.8

5.0 

4.7 

3.9 

2.8 

2.6

Runoff in 

aore fset

1,550 

7,530 

15,220

58,150

6,000 

3,200 

2,800 

1,260 

780 

121 

137 

7,210 

518

46,330

Peak discharge.- Nov. 15 (3:30 a.m.) 1,930 sec.-ft.; Dec. 28 (7 a.m.) 7,13O sec.-ft., Aug. 16 

(3 p.m.) 2,800 sec.-ft.; Aug. 17 (7:3O p.m.) 2,660 sec.-ft.
394 GILA RIVER BASIN

Verde River below Tangle Creek, above Horseshoe Dam, Arl-.

Location.- Water-stage recorder, lat. 34°04'25", long. 111°42'50", in sec. 35, T. 9 N., R. 

b E., unsurveyed, in Tonto National Forest, l£ miles dovmstream froir 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 Dasin).

Records available.- August 1945 to September 1947.

Extremes.- Maximum discharge during year, 11,500 second-feet Sept. 19 (gage height, 11.47 

reet); minimum, 79 second-feet July 4, 21 (gage height, 1.59 feet), caused by power 

regulation on Fossil Creek.

1945-47: Maximum discharge, that of Sept. 19, 1947; minimum, 71 second-feet June 

17, 1946.

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 computed from twice-daily gage readings and 

tnose computed from fragmentary gage-height record, which 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 1946 to September 1947

Day

1

?

3

4

5

6

7

R

«»

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

?»

29

30

31

Oct.

210

202

197

197

208

200

186

205

202

197

191

186

178

160

189

186

189

191

189

186

163

178

178

191

197

197

194

186

202

210

224

Nov.

227

230

233

224

247

253

253

264

267

291

g264

g276

g264

g282

g629

g559

g481

399

374

352

336

324

324

379

2,100

1,270

765

543

453

399

-

Dec.

380

358

342

333

324

318

306

297

294

303

300

300

297

294

288

270

276

276

276

273

270

258

250

267

267

285

342

4,200

1,930

1,060

782

Jan.

608

522

480

443

391

369

375

359

353

344

331

328

312

350

473

388

350

331

325

306

322

316

312

319

347

388

372

359

344

322

316

Feb.

309

297

273

282

282

282

291

340

372

417

446

420

391

372

369

362

378

385

359

331

303

279

270

244

261

250

252

264

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

Hay. ......................................

September. ...... ......................

Water year 1946-47 .......... ...........

Mar.

270

273

264

279

282

264

264

252

235

219

233

219

219

214

222

224

204

222

222

222

222

227

227

198

233

219

204

194

198

204

171

Apr.

188

191

191

198

214

216

198

224

211

201

184

188

191

175

196

186

175

168

156

152

121

133

135

137

139

152

156

137

156

146

-

Secondfoot-days

5,969

13,262

16,016

118,988

11,455

7,100

8,098

99,330

May

152

150

142

139

113

133

128

120

120

121

140

150

206

216

214

216

219

206

171

173

158

139

130

124

123

112

118

115

113

108

101

Maximus

224

4,200

6,590

608

297

1,630

1,200

June

100

85

101

104

106

102

101

101

98

107

107

104

102

102

98

83

101

102

104

107

110

116

102

115

108

106

104

104

107

96

-

Minimum

160

224

250

78

306

171

101

96

144

83

Jlly

112

109

100

98

104

103

98

143

137

117

115

112

112

94

117

115

112

109

108

103

88

297

187

120

109

108

109

97

115

120

117

Aug.

112

111

112

96

122

182

178

263

373

297

290

295

509

552

321

413

869

687

638

404

474

576

1,160

534

376

395

358

283

308

f264

f244

Mean

193

517

326

370

229

270

272

Sept.

f200

f!86

178

178

155

144

441

361

288

332

253

213

197

191

178

161

150

168

1,630

321

321

290

241

213

208

184

180

191

184

161

-

Runoff in 

acre- feet

11,840

26,300

31,770

236,000

22,720

14,080

16,060

197,000

Peak discharge.- Dec. 28 {8:30 a.m.) 6.110 sec. -ft.: Sent. 19 (4 p.m.) 11,500 sec. -ft.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

g Computed from graph based on twice-daily gage readings.
GILA RIVER BASIN 395

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

Location.- This system comprises two storage reservoirs created by Horseshce and Bartlett Dams on Verde River. Horseshoe Reservoir, formed by Horseshoe Dam, lat. 33°59'15" 

long. 111°42'45", in sec. 2, T. 7 N., R. 6 E., uftsurveyed; and Bartlett Reservoir, 

formed by Bartlett Dam, lat. 33°49', long. lll°3iB', in sec. 34, T. 6 N., R. 7 E., 

unsurveyed. Datum of gage on Horseshoe Reservoir is 1,900.00 feet and on 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 1947. Prior to 1946 published as Bartlett 

Heservoir at Bartlett Dam..

Extremes.- Maximum contents during year, 51,540 acre-feet Feb. 8; minimum, 1,480 acrefeet Aug. 5.

1939-47: Maximum contents, 184,800 acre-feet Feb. 17, 1941; 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 conpleted and 

storage began Nov. 15, 1945. Bartlett Reservoir is formed by concrete nultiple-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 1946 to Seotember 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

16,600

16,800

17,010

17,240

17,440

17,660

17,830

17,950

17,800

17,820

18,000

18,180

18 , 350

18,490

18,690

18,870

19,050

19,230

19,420

19,580

19,680

19,600

19,560

19,450

19,300

19,280

19,360

19,400

19,500

19,610

19,720

Nov.

19,830

19,940

20,080

20,200

20,200

20,580

20,800

20,980

21,130

21,140

21,240

21,430

21,630

21,900

22,700

23,590

24,180

24,660

24,310

24,930

25,490

26,130

26,590

27,470

31,190

33,800

35,100

36,490

37,220

37,130

-

Dec.

38 , 360

39,030

39,340

39,310

39,120

38,860

38,880

39,070

39,360

39,060

38 , 320

37,540

37,040

36,600

36 , 330

35,870

35,110

34,340

33,600

32,880

32,160

31,440

30,760

30,730

30,680

30,320

30,070

36,040

38,610

39,760

41,030

Jan.

42,010

42,720

43,200

43,440

43,380

43,090

41,790

42,380

42,800

43,260

44,120

45,110

46,240

46,730

47,690

47,830

47,720

47,710

48,180

48,600

48,760

48,550

48,210

48,090

48,360

48,770

49,290

49,580

49,750

49,800

50,040

Feb.

50,210

50,140

50,540

50,750

50,870

51,020

51,440

51,540

51,120

50,790

49,420/

49,370

49,750

50,180

50,430

50 , 580

51,080

51,100

5O.36O

49,650

48,900

48,510

48,370

47,820

46,850

45,600

44,640

44,400

_

_

-

Mar.

44,430

43,870

44,170

44,990

44,040

44,530

44,230

43,820

43,280

42,280

41,020

39,470

37 , 960

36,490

35,060

33,750

32,430

31.E60

30,290

29,300

28,430

27,960

27,530

27,060

27,640

26,190

25,560

25,070

24,670

24,290

23,870

Apr.

23,450

23,080

22,690

22,340

22,220

22,320

22,090

21,750

21,330

21,110

20,770

20,310

19,830

19 , 340

13,880

18,380

17,g 30

17,100

16,350

15,940

15,420

14,960

14 , 500

14,080

13,620

13,180

12,670

12,380

11,710

11,340

-

Hay

11,010

10,690

10,350

10,020

9,640

9,290

8,950

8,600

3,240

7,980

,900

,710

,840

,900

,950

8,000

8,050

8,080

8,040

8,020

,970

,890

,830

,760

,690

,590

,500

,410

,320

,220

,100

June

6,990

6,850

6,740

6,640

6,540

6,450

6,340

6,240

6,120

6,030

5,940

5,840

5,750

5,650

5,550

5,420

5,310

5,230

5,140

5,050

4,970

4,900

4,830

4,760

4,680

4,600

4,50/1

4,410

4,320

4,220

-

July

4,150

4,080

3,810

3,640

3,560

3,430

3,390

3,340

3,210

3,220

2,770

2,910

2,880

2,520

2,610

2,580

2,520

2,430

2,350

2,280

2,160

2,190

2,510

2,430

2,420

2,350

2,270

2,000

1,930

1,890

1,840

Aug.

1,770

1,520

1,530

1,510

1,480

1,680

1,830

2,960

3,960

4,750

5,250

5,760

6,890

8,050

8,660

9,350

10,920

12,190

13,220

13,840

14,730

15,890

17,710

18,530

19,090

19,690

20,220

20,600

20,870

21,280

21,700

Sept.

21,880

21,520

20,190

19,360

18,510

17,730

17 , 900

18,270

18,390

18,760

18,920

19,070

19,060

19,030

18,97O

18,780

18,170

17 , 600

20,270

20 , 520

20,710

20,820

20,880

20,790

20,570

20,140

19,890

19,630

19,360

18,910

-
396 GILA RIVER BASIN

Verde River below Bartlett Dam, Arlz.

Location.- Water-stage recorder, lat. 33°48'30", long. 111°40'00", in NEj- sec. 6, T. 5 

"., R. 7 E., 2-5- 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 1947. Prior to 1941 at sites 3 to 20 miles 

downstream (see Water-Supply Paper 1049). Records of monthly discharge prior to 

October 1938 have been republished, with some additions and revisions, in Water-Supply 

Paper 1049.

Average discharge - 59 years (1888-1947), 728 second-feet (adjusted for storage in 

hiartiett and Horseshoe Reservoirs).

Extremes.- "Maximum discharge during year, 1,050 second-feet (regulated) Mar. 15 (gage 

neignt, 4.41 feet); minimum, 6 second-feet (regulated) Nov. 28.

1888-1939 (unregulated): Maximum discharge (flow not determined but probably over 

150,000 second-feet) 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.

1939-47 (regulated): 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 good. Small diversions above station for irrigation. Flow regulated 

Dy Bartlett Dam since Feb. 5, 1939, and by Horseshoe Dam since Nov. 15, 1945.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?

3

5

6

7

8

9

10

11

12

13

14

15

16

17in

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

55

56

56

55

56

56

55

98

233

164

55

54

54

54

52

52

50

50

50

55

77

167

164

167

160

152

143

147

140

142

136

Nov.

136

136

140

140

148

IfaO

150

143

145

143

145

167

167

148

114

100

91

89

108

156

176

253

213

115

8

7

6

23

85

100

-

Dec.

loo

113

215

340

441

457

302

218

314

577

740

740

608

572

465

532

700

680

680

675

660

675

631

284

287

505

501

493

501

360

10

Jan.

19

- 46

118

226

331

445

410

84

226

312

180

118

136

108

130

331

417

337

87

57

191

389

449

335

159

104

43

129

202

242

153

Feb.

163

340

60

149

192

168

40

243

546

546

546

618

485

445

457

309

378

590

817

778

795

528

350

559

817

910

784

403

.

_

-

Month 

December. ..................................

Calendar year 1946 ......................

April. .....................................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

245

43

200

302

437

457

481

510

528

817

940

1,020

994

1,010

982

916

940

850

730

725

665

461

393

405

409

405

409

405

405

405

405

Apr.

397

397

401

371

258

152

299

389

389

401

401

393

393

397

401

401

411

409

397

393

385

389

396

405

405

397

409

417

405

382

-

Second 

foot-days

14,376

98,156

9,634

96,639

May

360

347

337

334

324

324

318

315

312

321

226

192

187

187

192

189

187

187

187

187

187

184

164

154

154

152

154

152

152

152

152

Maximum

740

1,430

449

795

1,020

June

152

149

146

149

149

149

146

144

144

144

144

144

144

142

142

142

139

139

136

136

136

132

134

132

132

127

127

124

124

124

-

Minimum

50

10

2

152

64

6

July

122

120

118

142

139

139

134

136

136

136

134

122

122

124

127

134

139

136

132

132

129

129

129

129

129

129

127

127

127

132

132

Aug.

129

127

127

132

134

134

136

121

38

36

27

36

36

36

80

43

37

36

36

36

38

29

21

20

19

31

22

21

21

62

62

Mean

464

269

225

130

321

265

Sept.

64

434

795

746

626

578

350

223

210

132

172

176

202

202

202

271

477

457

320

188

185

180

185

211

284

328

332

332

332

440

-

Runoff in 

acre-feet

28,510

194,700

19,110

191,700
GILA RIVER BASIN 397

Granite Creek near Prescott, Ariz.

Location.- Water-stage recorder, lat. 34°34', long. 112°87 I , in SW£ sec. 26, T. 14, N., 

R, 2 W., unsurveyed, at bridge on U. S. Highway 89, 2 miles north of Prescott and 

4j miles upstream from Willow Creek. Datum of gage is 5,207.3 feet above mean sea 

level (Arizona Highway Department bench mark).

Drainage area.- 39 square miles.

Records available.- July 1932 to September 1947 (discontinued). Records of monthly 

discharge prior to October 1938 have been republished in Water-Supply Paper 1049.

Average discharge.- 14 years (1932-34, 1935-47), 5.88 second-feet.

Extremes.- Maximum discharge during year, 251 second-feet July 21 (gage height, 5.72 

feet); no flow on many days.

1932-47: Maximum discharge, 2,900 second-feet Feb. 7, 1937 (gage l°ight, 9.20 feet), 

from rating curve extended above 1,500 second-feet; no flow during part of each year.

Remarks.- Records fair. City of Prescott takes water for municipal supply from storage 

reservoirs on tributaries of creek and from underground infiltration gallery on main 

stream immediately above station. Water for irrigation stored 3 miles below station 

in Lake Watson (capacity, 3,760 acre-feet).

Discharge, in second-feet, water year October 1946 to September 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.

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

o

0

o

0

0

0

0

0

o

0

.3

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

3

3

.8

.3

.1

.1

O

0

0

2

33

14

8

6

5

5

3

-

Dec.

3

2

2

2

1

1

2

1

1

.6

.4

.2

0

0

0

0

0

0

0

0

0

o

0

0

o

3

26

44

19

10

8

Jan.

7

5

3

3

3

3

2

2

2

1

1

.8

.9

.8

.8

.4

.6

.3

.1

.1

.1

.4

.5

.2

.2

.1

.3

.1

.4

.4

.2

Feb.

0.1

.1

.1

.1

0

.1

0

.1

0

.2

0

.1

.1.1

0

0

0

0

0

0

0

0

o

0

0

0

0

0

_-

Month

December ...................................

Calendar year 1946 ......................

May. .......................................

September ..................................

Water year 1946-47 ......................

liar. Apr.

Secondfoot-days

0.3

126.2

1,060.5

.1

0

279.4

Peak discharge.- Nov. 24 (5:30 a.m.) 48 sec. -ft.; Dec

May

Maximum

0.3

33

44

100

.2

.1

0

44

June

Minimum

0

0

0

0

0

0

0

0

0

Jul-r

0

o

0

0

0

0

0

c

c

c

c

c

c

c

c

c

c

0

0

5

16

0

0

Aug.

0

0

0

0

0

0

.1

0

0

0

0

0

0

o

0

0

0

o

0

0

0

0

0

Mean

0.01

2.78

4.07

2.91

.04

.93

.003

0

.76

27 (9 p.m.) 69 sec. -ft.; July 21

Sept.

Runoff in 

acre-feet

0.6

165 '

250

2,100

79

2.2

0

0

57

.2

0

554

(7:30 -un.)

251 see.-ft.
398 GILA RIVER BASIN

Agua Fria River near Mayer, Arlz.

Location - Water-stage recorder, lat. 34"19', long. 112°04 I , in NW^SE^ sec. 20, T. 11 N., 

K. 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 1947.

Extremes.- Maximum discharge during year, 1,590 second-feet Aug. 16 (gage height, b.fa? 

reetj; negligible flow at times during summer months when entire flow vas diverted to 

Perry Canal above station, seepage flow only past gage.

1940-47: Maximum discharge, 13,000 second-feet Mar. 1, 1941 (gage height, 11.97 

feet), by slope-area method; negligible flow at time during summer months in most years 

when entire flow was diverted to Perry Canal above station, seepage flow only past gage.

Remarks.- Records fair except those for periods of fragmentary or no gage-height record, 

which are poor. Diversions above station for irrigation and mining. Figures of daily 

discharge do not include water diverted just above station to Perry Caral.

Discharge, In second-feet, water year October 1946 to Sepberaber 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.

5 

1.5 

1.1 

1.0 

1.0

.9 

.9 

.8 

.3 

.2

.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nov.

0.2 

.3 

.3 

.3 

.3

.4 

.5 

.7 

1.1 

1.4

1.3 

1.4 

1.5 

6 

12

6 

4.6 

4.1 

3.8 

3.3

3.3 

3.3 

3.6 

3.6 

3.3

3.3 

2.8 

2.5 

2.8 

3.1

Month

Oc b 

Nov 

Cec

Ca

Jan 

Peb 

Mar 

Apr 

Ha; 

Jun 

Jul 

Aug 

Sep

Wa

ember ...........

lendar year 1946

tember. .........

ter year 1946-47

Dec.

3.1 

2.8 

3.6 

3.1 

3.6

3.6 

3.3 

3.1 

2.8 

3.1

2.8 

2.8 

2.5 

2.5 

2.5

2.5 

2.8 

2.8 

2.8 

3.3

3.1 

, 2.8 

2.5 

2.8 

3.1

3.8 

10 

36

18 

10 

7

Jan.

6 

6 

5

4.8 

4.5

4.5 

4.5 

4.5 

4.2 

4.2

4.2 

4.2

4.5 

4.S 

4.8

4.2 

3.9 

3.4 

3.7 

3.4

3.9 

4.2 

3.9 

3.7 

4.2

3.9 

4.2 

4.5 

4.5 

4.5 

4.8

Feb.

3.9 

3.9 

3.7 

3.4 

3.2

2.9 

2.7 

2.5 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2.5 

2.7 

2.5 

2.7 

2.5

2.3 

2.3 

2.3 

2.3 

2.1

2.1 

2.1 

1.9

liar.

1.7 

1.7 

1.9 

1.7 

1.7

1.9 

2.1 

2.1 

2.1 

2.1

2.3 

2.3 

2.1 

2.3 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

1.9 

1.9 

1.9 

2.1 

2 

2

Apr.

2

2.1 

2.1 

2.3

2.1

1.9 

1.9 

1.7 

1.7 

1.6

1.6 

1.6 

1.6 

1.0 

.2

Hay

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.5 

.4 

.3 

.3 

.3

.3 

.3 

.3 .'3 

.3

.3 

.4 

.4 

.5 

.4

.4 

.4 

.5 

.5 

.5 

.5

Observed

Secondfoot -days

16.0 

81.1 

158.5

2,445.4

135.6 

74.0 

62.9 

55.4 

10.1 

6.6 

27.3 

841.9 

88.7

1,558.1

Discharge In second-feet

Maximum Minimum

5 0.1 

12 .2 

36 2.5

214 .1

6 3.4 

3.9 1.9 

2.3 1.7 

.2 

.5 .2 

.5 .1 

7 .1 

198 .6 

26

19S .1

Mean

0.52 

2.70 

5.11

6.70

4.37 

2.64 

2.03 

1.85 

.33 

.22 

.88 

27.2 

2.96

4.27

Hunoff 

In 

acre-feet

32 

161 

314

4,840

269 

147 

125 

110 

20 

13 

54 

1,670 

176

3,090

June

0.5 

.5 

.4 

.5 

.5

.5 

.3 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.3 

.5

.5 

.2 

.1

.1 

.1

July

0.1

.1 

.1 

.1 

.1

.2 

.2 

3.8 

2.9

.7

.5 

.3 

.2

.1 

.1

.1 

.1 

.1 

.1 

.2

2.0 

7 

2.3 

1.1 

.9

.8 

.7 

.6 

.6 

.6 

.6

Diversion 

by 

Perry Canal 

(acre-feet)

45 

18 

2.4

496

20 

39 

37 

21 

74 

53 

19 

0 

13

341

Aug.

0.6 

.7 

1.0 

14 

. 13

2.3

1.6 

27 

93 

f9

f24 

f29 

f!3 

f25 

f27

f!98 

f41 

f32 

5 

2

22

94 

15 

1.4 

1.3

28 

30 

f2 

f2 

f2 

86

Sept.

fio

4 

2

1

.5

.4

.4 

.4 

26 

26

f9 

. .5

Adjusted for diversion

Funoff 

In 

acre -feet

77 

179 

316

5,340

289 

186 

162 

131 

94 

66 

73 

1,670 

189

3,430

Mean 

(secondfeet)

1.24 

3.01 

5.15

7.39

4.70 

3.34 

2.63 

2.19 

1.52 

1.11 

1.20 

27.2 

3.18

4.74

f Fragmentary gage-height recordj discharge computed from wholly or partly estimated gage heights.

Note.- No gage-height record Mar. 30 to Apr. 16, July 10-13, Aug. 19, 20, Sept. 2-16, 22-30; dlscharge computed on basis of adjoining good record, recorded range In stage, and ether available Information.
GILA RIVER BASIN 399

Agua Fria River at Lake Pleasant Dam, Ariz.

Location.- Staff gage, lat. 33"51«, long. 112°16', in NW£ sec. 21, T. 6 N., R. 1 E., at 

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 1947 (monthly 

discharge). Records of monthly discharge prior to October 1938 with one revision 

(August 1918) have been republished in Water-Supply Paper 1049.

Average discharge.- 19 years (1914-19, 1933-47), 150 second-feet.

Extremes.- 1910-24, 1933-47: Maximum discharge, about 105,000 second-feet Nov. 27, 1919 

(gage height, 33 feet, datum then in use, from floodmarks), from ratirg 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 the 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 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 0.7 of that 

measured once daily in 3-foot-square buried land pan 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 

toater Conservation District No. 1.

Monthly discharge, water year October 1946 to September 1947

Month

May.........................

Water year 1946-47 ........

Mean 

(second-feet)

8.9 

11.7 

21.0

15.5

8.9 

3.0 

1.6 

0 

2.6 

1.1 

1.0 

62.9 

1.3

10.5

Runoff In 

acre-feet

549 

698 

1,290

11,050

548 

168 

97 

0 

157 

66 

64 

5,870 

78

7,580
400 GILA RIVER BASIN

Lake Pleasant at Lake Pleasant Dam, Ariz.

Location.- Staff gage, lat. 33°51', long. 112°16', in NW^ sec. 21, T. 6 N., R. IE., at 

left upstream end of Lake Pleasant Dam on Agua Fria River. Datum of gage is 1,431.2 

feet above mean sea level, datum of 1929.

Drainage area.- 1,460 square miles.

Records available.- February 1928 to September 1947. Yearly summary of gage heights and 

contents prior to October 1938 have been republished in Water-Supply Paper 1049.

Extremes.- Maximum contents daring year, 7,560 acre-feet Oct. 1 (gage height, 83.86 

feet); minimum, 352 acre-feet Aug. 8.

1928-47: Maximum contents, 178,500 acre-feet-Apr. 19, 1941 (gage h?ight, 170.13 

feet), of which 500 acre-feet was uncontrolled storage; no storage Sept. 5, 1933, 

July 19 to Aug. 13, 1940.

Remarks.- Lake.is formed by multiple-arch dam; dam completed and storage began in 1927. 

Capacity, 178,000 acre-feet between gage heights 57.0 feet (22.0 feet above center 

line of outlet works) and 170.0 feet (top of spillway gates). There is no storage 

below gage height 57.0 feet because of accumulated silt. Water released from reservoir flows down river channel 1-J- 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 Conservalion District.No. 1.

Contents at 5 p.m., in acre-feet, water year October 1946 to September 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

Dot.

7,560

7,520

7,400

7,240

7,050

6,830

6,660

6,510

6,310

6,100

5,870

5,720

5,530

5,330

5,160

4,960

4^780

4,590

4,370

4,140

3,900

3,700

3,520

3,290

3,060

2,850

2,590

2,400

2,200

2,000

1,790

Nov.

1,590

1,370

1,130

908

681

493

513

524

536

549

555

562

580

735

965

985

1,000

1,020

1,030

1,040

1,050

1,050

1,070

1,110

1,120

1,140

1,190

1,210

1,230

1,240

-

Dec.

1,250

1,260

1,270

1,280

1,280

1,290

1,300

1,300

1,310

1,320

1,320

1,33Q

1,340'

1,340

1,350

1,350

1,360

1,360

1,370

1,380

1,380

1,380

1,390

1,400

1,400

1,420

1,440

1,630

2,140

2,360

2,480

Jan.

2,550

2,590

2,620

2,650

2,670

2,680

2,690

2,700

2,710

2,720

2,730

2,740

2,750

2,750

2,780

2,830

2,860

2,880

2,890

2,890

2,900

2,900

2,920

2,920

2,930

2,930

2,930

2,940

2,950

2,950

2,950

Feb.

2,950

2,950

2,960

2,970

2,970

2,970

2,980

2,980

2,990

2,990

3,000

3,000

3,000

3,000

3,000

3,000

3,000

3,010

3,010

3,010

3,020

3,020

3,020

3,020

3,020

3,020

3,030

3,040

_

-

Mar.

3,040

3,040

3,040

3,040

5,030

3,030

3,030

3,030

3,030

3,030

3,030

3,030

3,030

3,030

3,030

3,030

3,020

3,020

3,020

3,020

3,020

3,030

3,030

3,040

3,040

3,040

'3,030

3,030

3,030

3,020

3,020

Apr.

2,600

2,600

2,600

2,550

2,420

2,260

2,090

1,910

1,670

1,480

1,230

969

702

445

446

450

453

454

456

458

459

460

464

468

471

473

471

471

471

470

-

May

471

474

474

474

474

473

473

471

47O

470

526

530

532

530

530

533

533

533

533

533

533

532

528

526

524

522

521

518

518

516

513

June

512

510

508

507

505

504

502

500

498

496

494

493

492

488

487

484

482

477

474

470

465

462

460

459

458

456

454

453

450

448

-

July

445

443

443

442

440

438

436

432

431

428

424

419

416

413

413

413

412

408

407

406

402

398

395

394

390

388

386

383

378

372

368

Aug.

364

362

360

359

356

354

353

352

2,700

2,920

3,150

3,170

3,180

3,200

3,220

3,240

3,490

3,320

3,070

2,940

2,780

2,880

2,880

2,710

2,540

2,360

2,180

2,060

1,910

1,720

1,540

Sept.

1,390

1,270

1,110

935

731

481

479

485

485

484

487

488

488

487

482

481

482

482

482

485

485

494

500

500

500

499

499

499

499

499

-

Monthly gage height and contents, water year October.1946 to Septembe- 1947

Date

Dec. 31....................

Calendar year 1946. ......

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

Water year 1946-47. ......

Gage height 

(feet)t

70.33

-

60.48

-

Contents 

(acre-feet)

2,480

-

2 950

499

-

Change In contents 

during month 

(acre-fe?t)

+1,240

-810

-1,041

-7,051

ge height at 5 p.
GILA RIVER BASIN 401

Hassayampa River near Morristown, Ariz.

Location.- Water-stage recorder, lat. 33°53', long. 112°39', in SE^ sec. £, T. 6 N., R. 4 

W., TOO feet downstream from San Domingo, W=ish., 900 feet upstream froir Atehison, Topeka 

& Santa Fe Railroad "bridge, and 3.0 miles northeast of Morristown. Datum of gage 

is 1,831.16 feet above mean sea level, datum of 1929.

Drainage area.- 774 square miles.

Records available.- October 1938 to July 1947 (discontinued).

Extremes.- Maximum discharge during period October 1946 to July 1947, 9.2 second-feet 

Dec. a8 (gage height, 6.07 feet); no flow during long periods.

1938-47: Maximum discharge, 7,700 secontWeet Aug. 3, 1943 (gage height, 9.9 feet), 

from rating curve extended above 1,600 second-feet on basis of slope-area determination 

at 6,100 second-feet; no flow on many days each year.

A discharge of 6,000 second-feet occurred Aug. 8, 1947 (gage height, 8.95 feet, from 

floodmark) and is known to be maximum for the 1947 water year.

Remarks.- Records fair except those for periods of fragmentary or no gage-height record, 

which are poor. Many small diversions above station for irrigation and mining.

Discharge, in second-feet, water year October 1946 to September 19.17

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

a2

a2 

a2 

a2

al 

al 

al 

al 

1.0

.7 

.8

.6 

.7 

.6

.6 

.8 

.7 

.5 

.4

.4 

.5 

.6 

.5

.6

.5

1.0 

.7 

.7 

.8 

.8

Nov.

0.9 

.6 

.4 

f.2

a.l 

a.l 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

2.2 

1.1

.8 

f.3 

.6 

.4

f.3

f.2 

f.2 

fl.2 

.5 

a. 4

.4 

.6 

.5 

.6 

.7

Dec.

0.5 

.6 

.7 

.8

1.2 

1.2 

1.1 

1.1

.9 

.6 

.7 

.4 

.5

.7

1.3 

*1.3

1.3 

1.3

1.3 

1.4 

1.5 

1.8 

2.0

2.8 

2.0 

2.9 

4.4 

1.3 

1.1

Jan.

1.2 

1.2 

.9 

bl.O

1.0 

.8 

.9 

.9

1.0 

f.8 

f.8 

f.5 

f.7

*b.8 

.8 

.6 

.6 

.6

.6 

.5 

.5 

.7 

.7

.8 

.9 

1.0 

al 

al 

al

Feb.

al 

al 

al 

al

al 

al 

al 

al

al 

al 

al 

al 

al

al

al 

*1.2 

1.2

1.2 

1.2 

1.3 

1.3

1.1

1.3 

1.2 

1.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May. 

June 

July 

Augu 

Sept

Tl

mber ...................... ............

lendar year 1946 ................... . .

1-1& . . 

st

ember. .............................. . .

ie period ................. ...........

Mar.

0.8 

.9 

.9 

.8

1.1 

1.1 

1.3 

1.1 

1.0

.7 

.6 

.7 

.5 

.6

.8 

.4 

.5 

.5 

.3

.3 

.3 

.3 

.4 

.3

.2 

.2 

.3 

.3 

.3 

.3

Apr.

0.3 

.3 

.6 

.4

.4

.5 

.4 

.3

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

27.5 

14.5 

40.9

1,319.9

25.8

30.2 

18.8 

3.3 

0 

0 

0

-

May

Maximum

2 

2.2 

4.4

273

1.2 

1.3 

1.3 

.6 

0 

0 

0

-

June

Minimum

0.4 

.1 

.4

0

.5

1 

.2

0 

0 

0 

0

-

July Aug.

Mean

0.89 

.48 

1.32

3.62

.83

1.08 

.61 

.11

0 

0 

0

-

Sept.

Runoff in 

acre-feet

55 

29 

81

2,620

51 

60 

37 

6.5

0 

0 . 

0

320

* Winter discharge measurement made on this day. 

a Ho gage-height record; discharge computed on basis of weather records and records for station at 

Box dam site, near Wickenburg.

b Stage-discharge relation affected by ice.

f Fragmentary gage-height record; discharge computed from wholly or partly estimated gage heights.
402 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^SEy sec. 10, T. 

H4 S., 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 July 

1947 (temporarily discontinuea). Records of monthly dlscnarge prior to October 1938 

have been republished in Water-Supply Paper 1049.

Average discharge.- 20 years (1913-19, 1930-33, 1935-46), 12.1 second-feet.

Extremes.- Maximum discharge during period October 1946 to July 1947, 403 second-feet 

June 18 (gage height., 7.42 feet); minimum, 0.1 second-foot several days in May and 

June.

Maximum discharge during water year 1946-47,1,580 second-feet sometime during 

period July 9 to Sept. 30 (gage height, 9.33 feet, from floodmark).

1930-47- Maximum discharge, 3,£50 second-feet Aug. 10, 1931 (gag3 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.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?,

3

4

5

8

7

8

9

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Oct.

20

12

1.3

.6

.4

.3

.3

.3

.4

.4

.4

.5

.3

.5

.3

.3

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.6

.6

.5

.5

Nov.

0.5

.4

.4

.4

.5

.5

.4

.4

.4

.4

.4

.4

.4

,7>

.4

.3

.5

.4

.4

.4

.4

.4

.4

.5

.5

.5

.4

.4

.4

.3

-

Dec.

0.3

.3

.3

.3

.3

.3

.4

.4

.5

.4

1.6

.9

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.6

.5

.4

.4

.5

Jan.

0.4

.6

.5

.4

.4

.4

.5

.5

.5

.4

.4

.4

.4

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.(

.4

Feb.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.6

.6

.6

.5

.6

.5

.6

.5

.5

.4

.4

.5

.5

.5

_

_

-

 Month

December . ...................................

Calendar year 1946 ......................

April.. ....................................

May. .......................................

September. .................................

The period ........... ...................

Mar.

O.S

.5

.4

.4

.4

.5

.5

.5

.5

.5

.S

.5

.5

.5

.5

.5

.5

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Apr.

0.5

.4

.4

.5

.5

.4

.4

.4

.3

.4

.4

.4

.3

.5

.4

.4

.3

.3

.3

.3

.3

.2

.3

.2

,Z

.2

.2

.2

.Z

.2

Seccndfcot-days

14.0

1,671.3

1 0 O

 IT n

_

_

May

0.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

.Z

.2

.2

.3

.3

.3

.3

.5

.3

.2

.2

.4

.4

.2

.1

Maximum

1.6

347

_

.

June

0.3

.2

.1

.1

.2

.3

.2

.Z

.Z

.2

.Z

.2

.5

.2

.2

.2

.Z

30

48

1.3

.3

.3

.2

.2

.2

.3

.4

.3

.3

.3

-

Minimum

.3

.1

_

.

Jily

0.3

.5

.5

5.3

2.1

.3 i.e

3.4

_

-

_

_

..

_

-

_

_

_

-

_

_

_

-

_

_

_

_

_

-

Aug.

Mean

.45

4.58

 tn

I

KK

_

_

Sept.

Runoff in 

ao re-feet

28

3,310

25

_

451
MISCELLANEOUS DISCHARGE MEASUREMENTS 403

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 1946 to September "1947

Colorado River main stem

Date

Oct. 7

15 

Sept. 24

Stream

Colorado River.....

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

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

Tributary to or 

diverting from 

Pacific Ocean. . .

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

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

Locality

Sec. 12, T. 20 S., R. 25 E., at Westwater, Utah, 1 mile below Bitter 

Creek, 5 miles below Colorado-Utah 

State line, and at mile 345 above 

Lees Ferry, Arlz.

E., Utah, 800 feet above confluence 

with Green River, at mile 216.7 above 

Lees Ferry, Arlz.

E., Utah, lj miles above confluence 

with Dirty Devil River at mile 171 

above Lees Perry, Arlz. 

Approximately sec. 20, T. 40 S., R. 10 

E., Utah, 2 miles above confluence 

with Escalante River at mile 90 above 

Lees Ferry, Arlz. 

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

Discharge 

(sec. -ft.)

3,310

5,770

7,300

Tributaries between Gunnlson River and Green River

Oct. 7

Sept. 21

July 8

8

Oct. 8

July 8

Oct. 8

July 7

Sept. 21

Oct. 9

June 30

July 7

Sept. 21

Oct. 9

June 30

July 7

Sept. 21

Oct. 9

June 30

July 7

Sept. 21

Oct. 9

Sept. 21

21

Oct. 9

June 22

Sept. 22

June 22

22

Bitter Creek. ......

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

Unnamed wash .......

Cottonwood Creek . . .

Coates Creek.......

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

Dolores River ......

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

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

Onion Creek. .......

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

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

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

Rock Creek. ........

do

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

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

Castle Creek. ......

do

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

Nigger Bill Creek .

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

Unnamed stream. ....

Mill Creek.........

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

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

Kane Springs Wash . .

Indian Creek. ......

t Plell estimate.

Colorado River. .

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

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

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

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

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

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

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

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

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

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

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

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

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

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

....do..........1

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

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

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

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

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

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

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

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

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

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

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

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

Sec. 1, T. 20 .6., R. 25 E., near Wefstwater, Utah. Enters rlvar on right

bank at mile 346.1 above Lees Fer y,

Arlz.

Sec. 1, T. 20 S., R. 25 E., near Westwater, Utah. Enters river on right

bank at mile 346.1 above Lees Fer'-y,

Arlz.

Sec. 13, T. 20 S., R. 25 E., near Westwater, Utah. Enters river on lef ;

bank at mile 343.4 above Lees Fer-y,

Arlz.

Sec. 24, T. 21 S., R. 24 E., Utah.

Enters river on right bank at mile

_ 329.9 above Lees Ferry, Arlz.

Sec. 11, T. 22 S., R. 24 E., Utah.

Enters river on left bank at mile

321.6 above Lees Ferry, Arlz.

Sec. 8, T. 23 S., R. 24 E., Utah, at

mouth. Enters river on left bank 314

miles above Lees Perry, Arlz.

Sec. 16, T. 23 S. , R. 24 E., 2 mile's

above mouth.

Sec. 9, T. 23 S., R. 24 E., J mile

above mouth.

Sec. 10, T. 24 S., R. 23 E., Utah.

Enters river on left bank at mile

302.8 above Lees Perry, Arlz.

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

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

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

Sec. IS, T. 24 S., R. 23 E., Utah. Enters

river on left bank at mile 301.2 above

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

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

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

Sec. 26, T. 24 S., R. 22 E., Utah. Enters

river on left bank at mile 295.9 above

Lees Ferry, Ariz.

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

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

Sec. 30, T. 25 S., R. 22 E., Utah. Enters

river on left bank at mile 285 above

Lees Ferry, Ariz.

... .do. ..............................:...

Sec. 26, T. 25 S., R. 21 E., Utah, 500

feet above Moab bridge on left bank, at

mile 282 above Lees Perry, Arlz.

Sec. 3, T. 26 S., R. 21 E., near Mo*b,

Utah. Enters river on left bank at

mile 279 above Lees Perry, Arlz. 

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

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

Sec. El, T. 26 S., R. 21 E., Utah. Enters

river on left bank at mile 275.9 above

Lees Ferry, Arlz.

Approximately sec. 12, T. 29 S., R. 19 E.,

Utah. Enters river on left bank at

mile 233.3 above Lees Perry, Arlz.

t25

0

0

0

t.3

0

166

896

405

t.6

t.2

t.05

t.3

2.3

t.l

t.l

t.4

7.9

t.2

t .8

3.3

t2.0

1.1

t.05

7.3

34 . 2

5.5

t25

19.7
404 MISCELLANEOUS DISCHARGE MEASUREMENTS

charge measurements in Colorado River Basin during water year 

October 1946 to September 1947 Continued

Miscellaneous di

Tributaries between Gunnison River and Green River Continued

Date

June 22

Stream

Salt Wash ..........

Tributary to or 

diverting from --

Colorado River..

Locality

At mouth. Enters river on left bank in 

Utah, at mile 220.1 above Lees Ferry, 

Ariz.

Discharge 

(sec. -ft.)

tl.5

t Field estimate. Qreen River Basin

Sept. 12 

14 

17

Oct. 10 

June 12

Sept. 10 

June 12

12

June 13

Sept . 10 

June 13

June 13

June 13

June 13

11

June 13

June 13

Qreen River ........ 

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

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

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

Henrys Fork ........

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

Sheep Creek. .......

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

Alien Creek. .......

Dutch John Draw....

Cart Creek. ........

Unnamed wash .......

Little Davenport 

Creek.

Colorado River.. 

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

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

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

Qreen River. ....

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

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

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

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

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

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

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

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

Sec. 31, T. 2 N., R. 25 E., Utah, at 

Taylor ranch 7 miles above Ut.ahColorado State line and 385.2 miles 

above confluence with Colorado River. 

Sec. 21, T. 7 H., R. 103 W., Colorado, 

1 mile above confluence with Yampa 

River and 343.1 miles above confluence 

with Colorado River. 

Sec. 33, T. 8 S., R. 20 E., at highway 

bridge at Ouray, Utah, 0.2 mile above 

confluence with Duchesne Rive- and 

245.6 miles above confluence with 

Colorado River.

Creek, 12 miles .north of corner common 

to Carbon, Emery, Grand, and Ulnta 

Counties, Utah, and 181.8 miles above 

confluence with Colorado Rive-.

Approximately sec. 13, T. 30 S., R. 18 

E., Utah, 500 feet above confluence 

with Colorado River. 

Sec. 30, T. 3 H., R. 21 E., Utah, 1 mile 

above confluence with Qreen R'.ver. 

Enters river on right bank at mile 

435.8 above confluence with Colorado 

River. 

Sec. 29, T. 3 N., R. 21 E., Utah, i mile 

above confluence with Green River. 

Sec. 11, T. 2 N,, R. 20 E., Utah, 1,000 

feet above confluence with Qreen Hiver. 

Enters river on right bank at mile 

426.5 above confluence with Colorado 

River.

feet above confluence with Green 

River. Enters river on right bank 

at mile 421.1 above confluence with 

Colorado River.

feet above confluence with Green 

River. Enters river on right bank 

opposite Skull Canyon at mile 416.1 

above confluence with Colorado River.

feet above confluence with Green River. 

Enters river on right bank at mile 

412.1 above confluence with Colorado 

River. 

Sec. 18, T. 2 N., R. 22 E., Utah, 20 

feet above mouth. 

Sec. 18, T. 2 N., R. 22 E., Utah, 

% mile above confluence with Qreen

at mile 411.9 above confluence with 

Colorado River. '

Sec. 10, T. 2 N., R. 22 E., Utah. EnteES

river on left bank at mile 408.3 

above confluence with Colorado River.

Sec. 10, T. 2 N., R. 22 E., Utah. 

Enters river on right bank at mile 

407.9 above confluence with Colorado 

River.

Sec. 23, T. 2 N., R. 22 E., Utah, on 

right bank at mile 405.8 above confluence with Colorado River.

left bank at mile 401.5 above confluence with Colorado River.

Enters river on right bank at mile 

400.2 above confluence with Colorado 

Hiver.

Sec. 15, T. 2 H., R. 23 E., Utah. 

Enters river on right bank at mile 

399.4 above confluence with Colorado 

Hiver.

1,310 

1,390 

1,840

3,070 

460

54.8 

79.5

.6 

5.4

t3.0

t20.0

ts.o

t6.0

tl.O

t Field estimate.
MISCELLANEOUS DISCHARGE MEASUREMENTS 405

Miscellaneous discharge measurements 

October 1946 to S

in Colorado River Basin during water year 

lepteniber 1947 Continued

Oreen River Basin Continued

Date

Sept. 11 

June 13

June 13

12

June 15

June 15

15

Sept. 12 

June 15

16

Sept. 14 

14

June 16

June 17

June 17 

18

Dec. 19

Stream

Little Davenport 

Creek.

Jackson Creek. .....

Red Creek. .........

Willow Creek. ......

Grouse Creek. ......

Beaver Creek. ...... 

Vermilion Creek. . . .

Yampa River ........

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

Pool Creek. ........

Unnamed stream .....

Sage Creek. ........

Brush Creek. .......

Tributary to or 

diverting from 

Oreen River ..... 

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

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

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

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

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

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

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

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

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

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

Locality

Sec. 15, T. 2 N., R. 23 E. , Utah. 

Enters river on right bank at mile 

399.4 above confluence with Colorado 

River. 

Sec. 13, T. 2 N., H. 23 E., Utah. 

Enters river on right bank at mile 

397.7 above confluence with Colorado 

River.

Sec. 18, T. 2 N., R. 24 E., Utah. 

Enters river on left bank at mile 

396.2 above confluence with Colorado 

River .

Enters river on right bank at mile 

383.3 above confluence with Colorado 

River . 

Sec. 3, T. IN., H. 25 E., Utah, £ mile 

above mouth. Enters river on left 

bank at mile 380.4 above confluence 

with Colorado River.

several channels on right bank, 

return flow from irrigation, l£ miles 

upstream from Utah-Colorado State line 

and at mile 379.8 above confluence 

with Colorado River. 

Sec. 12, T. 10 N., H. 104 W., Colorado, 

 j mile above mouth. Enters rivsr on 

left bank at mile 377.7 above confluence with Colorado River. 

Sec. 13, T. 10 N., H. 104 W., Colorado, 

Sec. 5, T. 9 N., B. 102 W., Colo., at 

mouth. Enters river on left bank at 

mile 363.5 above confluence witn 

Colorado River.

right bank in Colorado, at mile 352.6 

above confluence with Colorado River.

right bank in Colorado, at mile 347.7 

above confluence with Colorado Biver. 

Sec. 28, T. 7 N., H. 103 W., Colo-ado, 

1,000 feet above confluence with 

Oreen River. Enters on left bank at 

mile 342.5 above confluence witn 

Colorado River. 

300 feet above mouth ................... 

Sec. 32, T. 7 N., H. 103 W., Colo-ado. 

Enters river on left bank at mile 

341.7 above confluence with Colorado 

River . 

Sec. 20, T. 7 N., H. 103 W., Colo-ado. 

Enters river on right bank at mile 

340.2 above confluence with Colorado 

River .

Enters river on right bank, ^ mile 

downstream from Colorado-Utah S^ate 

line and at mile 336.0 above confluence, with Colorado River.

Sec. 26, T. 3 S., H. 25 E., Utah. 

Enters river on right bank at mile 

334.5 above confluence with Colorado 

River .

Enters river on left bank at mile 

314.9 above confluence with Colorado 

River . 

Sec. 9, T. 5 S., R. 23 E., Utah. 

Enters river on right bank at mile 

302.1 above confluence with Colorado 

River.

Enters river on right bank at mile 

260.6 above confluence with Colorado 

River.

an, 100 feet above confluence with 

West Pork Duchesne Biver near S v.ockmore, Utah.

ridian, 1,000 feet above confluence 

with Oreen River at Ouray, Utah. 

Enters river on right bank at mile 

245.4 above confluence with Colorado 

River.

Discharge 

(sec. -ft.)

to. 3 

T1.5

t4.0

t.05

4.3

T2.0

4.2

T.5 

4.2

5,320

653 

t.5

t.5

t.2

153

t Field estimate.
406 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Colorado River Basin during water year 

October 1946 to September 1947 Continued

Green River Basin Continued

Date

Aug. 28 

Apr. 23

Feb. 24 

Apr. 14

June 18

Sept. 18 

Oct. 1

Oct. 2

19

Oct. 4

Oct. 4

Oct. 4

Oct. 4

Sept. 20 

21

Stream

West Pork... ....... 

Rock Creek. ........

Deep Creek. ........ 

Lake Pork ..........

White River. .......

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

Minnie Maud Creek 

(Nine Mile 

Canyon) .

Range Creek ........

Coal Creek .........

Rattlesnake Creek..

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

Saleratua Wash.....

Tributary to or 

diverting from 

Duchesne River.. 

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

Duchesne River..

Green River .....

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

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

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

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

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

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

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

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

Locality

SK£ sec. 25, T. 1 N., R. 10 W. Uinta 

meridian, at forest boundary, 

4^ miles above regular gaging 

station West Pork Duchesne River 

near Hanna, Utah 

SEj sec. 25, T. 2 N., R. 7 W. Uinta 

meridian, Immediately below confluence with Miners Gulch and 4 miles 

above gaging station Rock Creek near 

Mountain Home, Utah.

ridian, 4j miles above gaging station 

Water Hollow neap Fruit land, Utah. 

SWfc sec. 21, T. 3 S., R. 9 W. Uinta 

meridian, 150 feet above confluence 

with Currant Creek, 3| miles southwest of Fruitland, Utah. 

Sec. 19, T. 1 N., R. 4 W., at highway 

bridge, 2 miles above confluence with 

Yellowstone Creek and 6 miles northwest of Altonah, Utah.

an, at highway bridge 4 miles vr=st of 

Randlett, Utah.

Sec. 4, T. 9 S., R. 20 E., at highway 

bridge ij miles south of Ouray, Utah. 

Enters river on left bank at mile 

243.6 above confluence with Colorado 

River.

ij miles above confluence with Green 

River. Enters river on left bank at 

mile 237.3 above confluence with 

 Colorado River. 

Sec. 13, T. 9 S., R. 19 E. ............. 

Sec. 26, T. 11 S., R. 18 E., Utah. 

Enters river on right bank at irile 

211 above confluence with Colorado 

River .

right bank in Utah, at mile 18C.2 

above confluence with Colorado River.

right bank in Utah, at mile 171.3 

above confluence with Colorado River.

right bank In Utah, at mile 16F.6 

above confluence with Colorado River.

left bank in Utah, at mile 164.3 

above confluence with Colorado River.

left bank at mile 163.8 above confluence with Colorado River.

McPherson Ranch. Enters river on 

left bank at mile 156 above corfluence with Colorado River.

Sec. 32, T. 17 S., R. 17 E., Utah. 

Enters river on right bank at mile 

148.9 above confluence with Colorado 

River.

Sec. 18, T. 18 S., R. 17 E., Utal ,

143.5 above confluence with Colorado 

River .

Sec. 31, T. 18 S., R. 17 E., Utah. 

Enters river on left bank at mile 

139.5 above confluence with Colorado 

River.

Enters river on right bank in Utah, 

at mile 135.3 above confluence with 

Colorado River. 

500 feet above mouth ................... 

Sec. 15, T. 21 S., R. 16 E. Enters 

river on right bank, '0.2 mile below 

Denver & Rio Orande Railroad bridge 

at Green River, Utah, and 117.1 miles 

above confluence with Colorado River.

Discharge 

(sec. -ft.)

19.9 

80.9

3.8 

12.2

1,840

t.l 

3.1

tl.5

3.3

t.6

t.3

34.3 

t.l

t Field estimate.
MISCELLANEOUS DISCHARGE MEASUREMENTS 407

Miscellaneous discharge measurements in Colorado River Basin during water year 

October 1946 to September 1947 Continued

Green River Basin Continued

Date

Oct. 7

July 3 

Sept. 23

Stream

Browns Wash ........

San Raf ael River . . . 

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

Tributary to or 

diverting from 

Green River .....

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

Locality

Sec. 22, T. 21 S., R. 16 E. Enters 

river on left bank, 0.3 mile below 

Denver Sc Rio Grande Railroad bridge 

at Green River, Utah, and 117.0 

miles above confluence with Colorado 

River .

Sec. 25, T. 23 S., R. 16 E., | mile 

above mouth. Enters river on right 

bank at mile 94.9 above confluence 

with Colorado River. 

A quarter of a mile above mouth. ........

Discharge 

(sec. -ft.)

tl.5

139 

23.3

t Field estimate.

Tributaries between Green River and San Juan River

Oct. 12

Oct. 13

Sept. 22 

23

June 26

23

23

Oct. 14

Oct. 15

Oct. 15

Sept. 24

Dark Canyon Creek..

Dirty Devil River 

(Fremont River) .

Blue Motch' Creek.! .

Warm Springs Creek.

do

Bullfrog Creek.....

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

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

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

Escalante River....

Hole-in- the-Rock 

Creek.

Colorado River..

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

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

do

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

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

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

At mouth. Unsurveyed. Enters river 

on left bank in Utah, at mile 182.8 

above Lees Ferry, Ariz.

Unsurveyed. 1,600 feet above mouth. 

Enters river on right bank in Utah, 

at mile 169.5 above Lees Ferry, Ariz.

1,000 feet above mouth. .................

At mouth. Unsurveyed. Enters river on 

left bank in Utah, at mile 149.8 above

At mouth. Unsurveyed. Enters river on 

right bank in Utah, at mile 136.6 above 

Lees Ferry, Ariz .

right bank in Utah, at mile 132 above 

Lees Ferry, Ariz.

right bank in Utah, at mile 130 above

left bank in Utah, at mile 125 above 

Lees Ferry, Ariz. 

At mouth. Unsurveyed. Enters river on 

right bank in Utah, at mile 120.4 

above Lees Ferry, Ariz.

right bank in Utah, at mile 118.2 

above Lees Ferry, Ariz .

left bank in Utah, at mile 113.2 above 

Lees Ferry, Ariz.

left bank at mile 113.2 above Lees 

Ferry, Ariz .

At mouth. Unsurveyed. Enters river on 

right bank in Utah, at mile 88.2 above 

Lees Ferry, Ariz.

At mouth. Unsurveyed. Enters river on 

right bank in Utah, at mile 84.3 above 

Lees Ferry, Ariz.

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

tl.O

63.9

37.2 

tl.2

t.2 

t.5

t.3

t.3

1.0

t.4

52.3

t.2

t.2

t Field estimate.

San Juan River Basin

June 27

May 3

2

2

San Juan River..... 

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

McElmo Creek. ......

Colorado River..

San Juan River..

At mouth. Unsurveyed. Enters river on 

left bank in Utah, at mile 78 above 

Lees Ferry, Ariz.

At Utah-Colorado State line and 50 feet 

below confluence with Yellow Jacket 

Creek.

feet above mouth, at Aneth, Utah.

mouth .

left bank at mile 132.7 above corfluence with Colorado River.

2,770

25.1

t Field estimate.

Tributaries between San Juan River and Little Colorado River

Unnamed wash

(Mystery Canyon).

852060 O - 49 - 27

Colorado River.. At mouth. Unsurveyed. Enters river on 

left bank in Utah, at mile 73.6 above 

Lees Ferry, Ariz.
408 MISCELLANEOUS DISCHARGE MEASUREMENTS

iscellaneous discharge measurements in Colorado River Basin during water 

October 1946 to September 1947--Continued

Tributaries between San Juan River and Little Colorado River Continued

Date

Sept. 25 

25 

June 28

Sept. 25 

June 29

Sept. 25 

Oct. 16

June 29 

Sept. 25 

25

June 29

Sept. 25 

June 29

Sept. 25 

June 29

Sept. 25 

June 29

29

Sept. 26 

June 29

29

Sept. 26 

Oct. 17

June 29 

Sept. 26 

June 29

Sept. 26 

Oct. 18

Nov. 22 

Dec. 15 

Jan. 18 

Feb. 21 

Mar. 22 

Apr. 26 

May 25 

June 14 

July 13 

Aug. 19 

Sept. 20

Stream

Unnamed wash 

(Mystery 

Canyon) . 

Oak Creek

Aztec Creek. . . .

West Canyon 

Creek.

Last Chance 

Creek.

Unnamed wash . . .

Cottonwood 

Canyon .

Warm Creek. ....

Kanab Creek ....

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

Tributary to or 

diverting from 

Colorado River..

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

do

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

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

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

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

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

do

Drainage

Locality . area . (sq.ml.)

At mouth. Unsurveyed, Enters river 

on left bank In Utah, at mile 73.6 

above Lees Ferry, Arlz . 

At mouth. Unsurveyed. Enters river 

on left bank In Utah, at mile 71.4 

above Lees Ferry, Arlz. 

At mouth. Unsurveyed. Enters river 

on left bank In Utah, at mile 68.6 

above Lees Ferry, Arlz .

At mouth. Unsurveyed. Enters river 

on left bank in Utah, at mile 63.4 

above Lees Ferry, Ariz .

At mouth. Unsurveyed. Enters river 

on right bank In Utah, at mile 55.6 

above Lees Ferry, Ariz .

do

At mouth. Unsurveyed. Enters river 

on left bank In Utah, at mile 50.8 

above Lees Ferry, Arlz. 

At mouth. Unsurveyed. Enters river 

on right bank in Utah, at mile 49.3 

above Lees Ferry, Arlz.

At mouth. Unsurveyed. Enters river 

on left bank in Utah, at mile 44.4 

above Lees Ferry, Arls.

At moutH. Unsurveyed. Enters river 

on right bank In Utah, at mile 40.5 

above Lees Ferry, Arlz .

At mouth. Unsurveyed. Enters river 

on right bank in Utah, at mile 40 

above Lees Ferry, Aria. 

At mouth. Unsurveyed. Enters river 

on left bank In Utah, at mile 34.5 

above Lees Ferry, Arlz.

At mouth. Unsurveyed. Enters river 

on right bank, 3 miles above UtahArizona State line and at mile 33.3 

above Lees Ferry, Ariz. 

Sec. 7, T. 44 S., R. 5 E. (unsurveyed) , 

at Utah-Arizona State line. Enters 

river on right bank at mile 27.8 

above Lees Ferry, Ariz.

Unsurveyed. 2.5 miles below UtahArizona State line. Enters river on 

left bank at mile 25.4 above Lees 

Perry, Arlz.

At mouth. Unsurveyed. Enters river on 

right bank in Arizona, at mile 16.7 

above lees Ferry, Ariz

SEj- sec, 5, T. 43 S., R. 6 W., at high- 0.73 

(fay bridge, 4 miles north of Kanab, 

Utah.

to tunnel at head of canal and 2 mllef 

north of Kanab, Utah.

Discharge 

(sec. -ft.)

to.i

t.05 

t.7

t.3

t.5

t.l 

t.5

tl.O 

t.8 

t.2

t: .8

t.4 

1.2

t.2 

t.4

t.2

1.3

t.3

t.05 

t .1

tl.2

tl.4 

5.3

4.0 

8.0

6.0

K.6 

9.6

11.4 

9.7 

9.0 

7.5 

9.3 

6.9 

4.6 

5.9 

6.1 

6.4 

6.3

t Field estimate.

Little Colorado River Basin

June 12 Concho Creek. .. Little Colorado 

River.

See. 18, T. 12 N., R. 26 E., below 

springs at head of Concho Reservoir, 

3 miles southwest of Concho, Ariz.

2.83

Virgin River Basin

July 2 Virgin Rive Colorado River.. At bridge on U. S. Highway 91, 2 miles

southwest of Mesqulte, Nev.*

Beaver Dam Wash Virgin River.... At mouth, % mile northeast of Littlefield, Arlz. 

Below all diversions for Mesqulte and Bunkervllle, Nev.
MISCELLANEOUS DISCHARGE MEASUREMENTS 409

Miscellaneous discharge measurements In Colorado River Basin during witer year 

October 1946 to September 1947 Continued

Virgin River Basin Continued

Date

July 2

2

Stream

Littlefleld Canal..

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

Tributary to or 

diverting from 

Virgin River. . . .

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

Locality

At mouth of Beaver Dam Wash, J mile 

northeast of Llttlefleld, Arlz.

2 miles southwest of Hequlte, He-'.

Home Ranch weir, 5 miles northwest 

of Hoapa, Nev. 

NE£ sec. 2, T. 15 S., R. 66 E., below 

Meadow Valley Wash, at bridge on 

U. S. Highway 91 at Glendale, Nev.

Discharge 

(sec. -ft.)

1.31

38.8

Glla River Basin

Qlla River......

.do.

Blue River......

Bonlta Creek....

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

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

San Pedro River.

Aravalpa Creek..

Black River.....

East Fork Black 

River.

West Fork Black 

River.

White River..... 

Carrlzo Creek...

Clbecue Creek... 

Cherry Creek.... 

Verde River..... 

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

Willow Creek.......

Colorado River..

San Francisco 

River.

Glla River......

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

San Pedro River.

Salt River......

Black River.

Salt River...../ 

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

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

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

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

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

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

Granite Creek...

* Minimum observed flow for period June 2 to 

upstream was 21.5 second-feet at time of

sec. 13, T. 19 S., R. 21 W., 

at Vlrden Bridge, N. Hex.

sec. 29, T. 6 S., R. 31 E., 

0.4 mile below Apache Grove, neaYork, Arlz.

Sec. 31, T. 1 S., R. 31 E., Z\ nll<;8 

above Juan Miller Creek and 8j miles 

above mouth.

Sec. 5, T. 6 S., R. 28 E., about 250 

yards below Intake of Safford water 

supply and 4 miles above mouth.

Sec. 8, T. 6 S., R. 28 E., about

1 mile below Intake of Safford water 

supply and 3 miles above mouth.

Sec. 21, T. 6 S., R. 28 E., 1,000 feet 

above mouth.

SE£ sec. 33, T. 23 S., R. 22 E., at 

site of former gaging station at 

bridge on Arizona State Highway 92, 

half a mile east of Palominas, Arlz.

NW£ sec. 3, T. 20 S., R. 21 E., at 

bridge on Arizona State Highway.82, 

Just below Babacomarl River, ? mile 

west of Fair-bank, Arlz.

NE£ sec. 4, T. 7 S., R. 17 E., 1 rile 

above site of former gaging station, 

7 miles above mouth, and 6j miles 

southeast of Peldman, Arlz.

Sec. 32, T. 2 N., R. 25 E., below

pumping plant, 2,500 feet below Freezeout Creek and 8 miles north at !<->int 

of Pines, Arlz.

£ mile below site of former gagingstation, about ^ mile below large 

spring, at bridge on Arizona State 

Highway 73, and 5-J miles above confluence with White River.

SWj sec. 14, T. 6 N., R. 28 E., at road 

crossing 14 miles south of Eager, 

Arlz.

HWj- sec. 12, T. 4 N.. R. 28 E., at 

Buffalo Crossing, J mile above confluence with West Fork Black Hirer 

and 14 miles southwest of Alpine, 

Arlz.

HWj sec. 11, T. 4 N., R. 28 E., at 

road crossing, lj miles above confluence with East Fork Black River 

and 15 miles southwest of Alpine, 

Arlz.

400 feet below bridge on Arizona State 

Highway 73 and 5 miles above movth.

Sec. 24, T. 7 N., R. 19 E., 400 feet 

below bridge on U. S. Highway 60, 

22 miles above mouth.

Sec. 31, T. 8 N., R. 18 E., 100 feet 

below road crossing at Clbecue, 

Arlz.

Sec. 10, T. 4 N., R. 15 E., at rord 

crossing, £ mile above Devore Ranch 

and 2J miles above mouth.

Sec. 36, T. 18 N., R. 1 E., at hl?Jiway bridge J mile above Perkinsvllle, 

Arlz.

Sec. 1, T. 12 N., R. 5 E. (unsurveyed), 

750 feet above Chasm Creek, 9 miles 

southeast of Camp Verde, at site of 

former gaging station.

NW£ sec. 25, T. Hi N., R. 6 E., 

opposite Verde Hot Springs Hotel, 

1 mile above Chllds power plant, 

Arlz., and 4j miles above Fossil 

Creek.

Sec. 18, T. 14 N., R. 2 W., at bridge 

on Wllllamson Valley road, 4 miles 

northwest of Prescott, Arlz. 

Sept. 30; pumpage from Black River 400 feet 

measurement.
Miscellaneous discharge measurements In Colorado River Basin during water year 

October 1946 to September 1947 Continued

Glle River Basin Continued

Date

June 23

24

24

25

25

26

26

23

20

Stream

Willow Creek......

Sycamore Creek....

Oak Creek. ........

Beaver Creek ......

West Clear Creek..

Childs powerplant flume.

East Verde River..

Agua Frla River...

Hassayampa River..

Tributary to or 

diverting from--

Oranlte Creek....

Verde River. .....

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

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

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

Fossil Creek. ....

Verde River ......

Olla River... ....

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

Locality

KEj sec. 15, T. 14 N., R. 2 W., at head

of Willow Creek Reservoir, 4 Files

northeast of Preseott, Ariz.

SWi sec. 8, T. 17 N., R. 3 E., \ mile

above mouth and 6 miles northwest of

Clarkdale, Ariz.

SE-J sec. 23, T. 16 N., R. 4 E., at

site of former gaging station at

bridge, 0.2 mile above Page Springs

and 4 miles northeast of Cornville,

Ariz.

SWj-NVJi- se . 29, T. 14 N., R. 5 F.,

1/8 mile above mouth and 1/8 irile

below site of former gage at Camp

Verde, Ariz.

SEj sec. 18, T. 13 N., R. 6 E., above

all diversions at mouth of canyon,

1 mile above Clear Creek ranger

station and 5 miles above mouth.

SWj sec. 36, T. 12 N., R. 6 E., at

road crossing about ^ mile above

Stehr Lake, Ariz.

NW-i sec. 17, T. 11 N., R. 10 E., above

Sycamore Creek, at bridge on county

highway 6 miles north of Payscn,

Aris.

Sec. 4, T. 8 N., R. 2 E., below mouth

of Bumblebee Canyon, about 1 irile

below bridge on Arizona State Highway 69, at Canon, Ariz.

NEiSEj sec. 9, T. 11 N., R. 3 W., at

site of former gaging station, at

bridge on Kirkland Junction-Wagoner

road, 5j miles above Milk Creek and

7j miles upstream from Wagoner, Ariz.

Discharge 

(sec. -ft.)

0

11.0

14.6

8.80

12.9

42.9

1.72

.59

.67
INDEX

Page 

Accuracy of field data and computed

results.......................... 5

Acre-foot, definition of............... 1

Adamana, Ariz., Puerco River near...... 329

Agencies other than Geological Survey,

records collected by............. 11

Agua Fria River at Lake Pleasant Dam,

Ariz............................. 399

discharge measurement of............. 410

near Mayer, Ariz..................... 398

Alamo, Ariz., Bill Williams River near. 341 

Santa Maria River near............... 342

Alamo Canal at Andrade, Calif.......... 33,43

All-American Canal above Pilot Knob

wasteway, Calif.................. 33,37

near Imperial Dam, Ariz.-Calif....... 33,36

Alien Creek, Utah, discharge measurements of......................... 404

Almont, Colo., East River at........... 103

Taylor River at...................... 97

Altonah, Utah, Yellows tone Creek near.. 242 

Alva B. Adams tunnel, Colo., diversion

through.......................... 14

Andrade, Calif., Alamo Canal at........ 33,43

Animas River above Tacoma, Colo.......300-301

at Purango, Calif.................... 302

at Parmington, N. Hex................ 304

at Howardsvi lie, Colo................ 29,9

near Cedar Hill, N. Mex.............. 303

Arapho Creek at Monarch Lake Outlet,

Calif............................ 45

Aravaipa Creek, Ariz., discharge

measurement of................... 409

Ash Creek near. New Harmony, Utah. ...... 337

Ashley Creek at Sign of the Maine, near

Vernal, Utah..................... 214

below Trout Creek, near ?ernal, Utah. 212 

near Jensen, Utah.................... 215

near Vernal, Utah.................... 213

South Fork, near Vernal, Utah........ 216

Aspen, Colo., Roaring Fork at.......... 82

Aztec Creek, Ariz., discharge measurements of......................... 408

Baldwin, Colo., Castle Creek near...... 109

Ohio Creek near...................... 106

Sardine, Colo., East Muddy Creek near.. 124

Bartlett Dam, Ariz., Verde River below. 396

Battle Creek near Slater, Colo......... 203

Bayfield, Colo., Los Pinos River near.. 297 

Vallecito Reservoir near............. 296

Beaver Creek (tributary to Green River 

in Colorado), Colo., discharge 

measurement of................... 405

Beaver Creek (tributary to Green River

in Wyoming) near Daniel, Wyo..... 159

Beaver Creek (tributary to San Miguel

River) near Norwood, Colo........ 147

Beaver Creek (tributary to Verde River),

Ariz., discharge measurement of.. 410

Beaver Dam Wash, Ariz., discharge

measurement of................... 408

Bedrock, Colo., West Paradox Creek near 142

Beyer ditch, Wyo., discharge measurements of......................... 164

Bicknell, Utah, Fremont River near..... 269

Big Creek at upper station, near

Collbran, Colo................... 90

Big Piney, Wyo., Middle Piney Creek

near............................. 171

Big Sandy, Wyo., Big Sandy Creek near.. 174 

East Fork near....................... 168

Silver Creek near.................... 169

Big Sandy Creek at Leckie Ranch, near

Big Sandy, Wyo................... 174

Bill Williams River at Planet, Ariz.... 3 

near Alamo, Ariz..................... 3 , 341

Bill Williams River Basin, Ariz.,

gaging-station records in.......341-342

Bitter Creek, Ariz., discharge measurements of........................ 403-404

Black Creek above Green Mountain Reservoir, Colo.. ..................... 72

below Black Lake, near Dillon, Colo.. 71

Black River, Ariz., discharge measurements of......................... 409

East Fork, discharge measurements of. 409 

West Fork, discharge measurement of.. 409 

Willow Creek diversion from, near

Morenci, Ariz.................... 374

Black & McClesky Canal, Ariz., diversion

by............................... 348

Blacks Fork near Lyman, Wyo............ 178

near Millburne, Wyo.................. 176

near Urie, Wyo....................... 177

Blanco, N. Hex., San Juan River near... 276

Bloom ditch, Wyo., discharge measurements of......................... 164

Blue Notch Creek, Utah, discharge

measurement of................... 407

Blue River (tributary to Colo-ado

River) above Green Mountain Reservoir, Colo....................... 60

at Dillon, Colo...................... 59

below Green Mountain Reservoir, Colo. 62

Blue River (tributary to San Francisco 

River), N. Hex., discharge 

measurement of................... 409

Bluff, Utah, San Juan River near....... 279

Bljthe, Calif., Palo Verde Canal near.. 30

Bonita Creek, Ariz., discharge measurements of......................... 409

Boulder, Wyo., Boulder Creek near...... 167

New Fork River near.................. 163

Boulder Creek (tributary to Blue River)

near Dillon, Colo................ 69

Boulder Creek (tributary to New Fork 

River) below Boulder Lake, near 

Boulder, Wyo..................... 167

Boulger Creek near Falrview, Utah...... 267

Brazil ditch, Wyo., discharge measurements of......................... 164

Bright Angel Creek near Grand Canyon,

Ariz............................. 333

Brown Canal, Ariz., diversion by....... 352

Brown Duck Creek near Mountain Home,

Utah............................. 241

Browns Wash, Utah, discharge measurements of......................... 407

Brush Creek above cave, near Vernal,

Utah............................205-206

discharge measurement of............. 405

near Jensen, Utah.................... 208

near Vernal, Utah.................... 207

Buckeye Reservoir Outlet near Paradox,

Colo. ............................ 143

Buford, Colo., South Fork White River

near............................. 253

Bull Creek at upper station, near

Molina, Colo..................... 92

Bullfrog Creek, Ariz., discharge

measurements of.................. 407

Bunkerville Canal, Nev., discharge

measurement of................... 409

Burntfork, Wyo., Burnt Fork near....... 192

Henrys Fork near..................... 188

Burnt Fork near Burntfork, Wyo......... 192

Butler Wash, Utah., discharge measurement of.......................... 407

Buzzard Creek near Collbran, Colo...... 89

Cqlifornia drainage canal, Calif.,

return flow from................. 44

Calva, Ariz., Gila River at. ........... 354

Cameo, Colo., Colorado River near...... 18

Plateau Creek near................... 88

Cameron, Ariz., Little Colorado River

near............................. 325

Carbondale, Colo., Fourmile Creek near. 85 

Carrizo Creek, Ariz., discharge measurement of.......................... 409

411
412 INDEX

Page

Cart Creek, Utah, discharge measurements of......................... 404

Carter Creek at mouth, near Manila,

Utah............................. 194

Casa Grande Canal. See Florence-Casa

Grande Canal. 

Castle Creek (tributary to Colorado

River), Ariz., discharge measurements of......................... 403

Castle Creek (tributary to Ohio Creek)

near Baldwin, Colo. .............. 109

Cataract Creek above Green Mountain

Reservoir, Colo. ................. 74

Cebolla Creek at Powderhorn, Colo...... 117

near Lake City, Colo................. 116

Cedar Hill, N. Mex., Animas River near. 303 

Cedaredge, Colo., Leroux Creek near.... 127

Surface Creek at..................... 129

Surface Creek near................... 128

Ward Creek near...................... 131

Cement Creek (Gunnison River Basin)

near Crested Butte, Colo......... 105

Cement Creek (San Juan River Basin)

near Silverton, Colo............. 305

Central, Utah, Santa Clara Creek near.. 338 

Chandler Creek, Utah, discharge measurements of......................... 406

Charleston, Ariz., San Pedro River at.. 379 

Cherry Creek (Gila River Basin), Ariz.,

discharge measurement of......... 409

Cherry Creek (San Juan River Basin)

near Red Mesa, Colo .............. 313

Chevelon Fork below Wildcat Canyon,

near Winslow, Ariz..............329-330

near Winslow, Ariz................... 330

Childs power-plant flume, Ariz., discharge measurement of............ 410

Chinle Creek, Utah., discharge measurement of.......................... 407

Chromo, Colo., Little Havajo River at.. 287 

Havajo River near.................... 285

Chrysotile, Ariz., Salt River near..... 388

Cibecue Creek, Ariz., discharge measurement of.......................... 409

Cimarron Creek below Squaw Creek, at

Cimarron, Colo................... 121

Cisco, Utah, Colorado River near....... 19

Clark, Colo., Elk River at............. 197

Clear Creek below Willow Creek, near

Winslow, Ariz.................... 331

near Winslow, Ariz................... 331

Cliff, N. Mex., Gila River near........ 344

Clifton, Ariz., Gila River near........ 349

San Francisco River a±............... 371

Coal Creek, Utah, discharge measurements of......................... 406

Coates Creek, Ariz., discharge measurements of......................... 403

Cochetopa Creek near Parlin, Colo...... 115

Collbran, Colo., Big Creek near........ 90

Buzzard Creek near................... 89

Plateau Creek near................... 87

Colmenero Canal, Ariz., diversion by... ' 348 

Colona, Colo., Uncompahgre River at.... 132

Colorado River at Glenwood Springs,

Colo. ............................ 17

at Hot Sulphur Springs, Colo......... 15

at Imperial Dam, Ariz.-Calif......... 31,33

at Lees Ferry, Ariz.................. 3,20

at Needles, calif.................... 24

at Yuma, Ariz........................ 32,33

oelow Hoover Dam, Ariz.-Nev.......... 23

below Parker Dam, Ariz.-Calif........ 29

discharge measurements of............ 403

diversion from....................... 42

near Cameo, Colo..................... 18

near Cisco, Utah..................... 19

near Dofrsero, Colo................... 16

near Granby, Colo.................... 14

near Grand Canyon, Ariz.............. 21

near Grand Lake, Colo................. 13

near Topock, Ariz.................... 25-26

Colorado River and Pilot Knob wasteway

at Rockwood gate, Ca]if.......... 33,34

Colorado River aqueduct, diversion to.. 29 

Colorado River Indian Reservation, diversion for, near Parker, Ariz... 30

Page

Colorado River main stem, Cclo.-UtahAriz.-Nev.-Calif., discharge 

measurements on.................. 403

gaging-station records on............ 13-34

Colvin-Jones Canal, Ariz., diversion by 352 

Computations, accuracy of results of... 5 

Consho Creek, Ariz., discharge measurement of.......................... 408

Contents, definition of................ 2

Control, definition of................. 1

Coolidge Dam, Ariz., Gila River below.. 356 

San Carlos Pv eservoir at.............. 355

Coon Creek at upper station, near Mesa,

Colo............................. 93

Cooper wasteway, Ariz., return flow

from............................. 44

Cooperation, record of................. 11-12

Cora, Wyo., Hew Fork River rear........ 162

Cottonwood Canyon, Ariz., discharge

measurement of................... 408

Cottonwood Creek (tributary to Colorado 

River), Ariz., discharge measurement of.......................... 403

Cottonwood Creek (tributary to Plateau 

Creek) at upper station, near 

Molina, Colo..................... 91

Cottonwood Creek (tributary to San

Miguel River) near Nucla, Colo... 149 

Cottonwood Creek (tributary to San

Rafael River) near Orangeville, 

Utah............................. 268

Craig, Colo., Fortification Creek at... 198 

Crawford, Colo., Smith Fork near....... 123

Crested Butte, Colo., Cement Creek near 105 

East River near...................... 102

Slate River near..................... 104

Crystal Creek near Maher, Cclo......... 122

Crystal River near Redstone, Colo...... 84

Cub Creek, Utah, discharge ireasurement

of............................... 405

Curecanti Creek near Sapinero, Colo.... 120

Currant Creek below Red Ledge Hollow,

near Fruitland, Utah.............. 234

near Fruitland, Utah................. 235

Curtis Canal, Ariz., diversion by...... 352

Daniel, Wyo., Beaver Creek rear........ 159

Green River near..................... 155

Horse Creek near....................160-161

Dark Canyon Creek, Ariz., discharge

measurements of.................. 407

Data., accuracy of...................... 5

explanation of....................... 2-4

Deep Creek (tributary to Currant Creek),

Utah, discharge measurement of... 406

Deep Creek (tributary to Roc Creek)

near Paradox, Colo............... 154

Delta, Colo., Roubideau Creek near..... 134 

Uncompahgre River at................. 133

Diamondville, Wyo., Hams Fork at......184-186

Dillon, Colo., Black Creek near........ 71

Blue River at........................ 59

Boulder Creek near................... 69

Rock Creek near...................... 68

Slate Creek near..................... 70

Snake R iver at....................... 63

Straight Creek near.................. 66

Tenmile Creek at..................... 65

Willow Creek near.................... 67

Dirty Devil River, Ariz., discharge

measurements of.................. 407

near Hanksville, Utah...............270-271

Dirty Devil River Basin, Utah, gagingstation records in..............269-271

Dixon, Wyo., Little Snake River near... 201

Dodge-Nevada Canal, Ariz., diversion by 352

Dolores, Oolo., Dolores River at........ 136

Lost Canyon Creek at................. 139

Dolores River at Dolores, Colo......... 136

at Gateway, Colo.....;............... 138

discharge measurements of............ 403

near McPhee, Colo.................... 137

Dolores River Basin, Colo., gagingstation records in..............136-154

Dome, Ariz., Gila River near..........33, 362

Dotsero, Colo., Colorado River near.... . 16

Douglas, Ariz., Whitewater Draw near... 402
INDEX 413

Page

Douglas, Arlz., Whitewater Draw near... 402 

Doylevllle, Colo., Tomlchi Creek near.. Ill 

Dry Fork above sinks, near Dry Fork,

Utah............................. 217

East Fork of, near Dry Fork, Utah.... 219

North Fork of, near Dry Fork, Utah... 218 

Dry Gulch, Utah, discharge measurements

of............................... 406

Duchesne, Utah, Duchesne River at...... 224

Strawberry River at.................. 232

Duchesne River at Duchesne, Utah....... 224

at Myton, Utah....................... 225

at Provo River Trail, near Hanna,

Utah............................. 220

discharge measurements of............ 405

near Hanna, Utah....................221-222

near Randlett, Utah.................. 226

near Tabiona, Utah................... 223

West Pork, near Hanna, Utah.......... 227

Duncan Canal, Ariz., diversion by...... 348

Duncan Valley, N. Mex.-Ariz., diversions from Gila River in......... 348

Durango, Colo., Animas River at........ 302

Florida River near................... 309

Lightner Creek near.................. 308

Dutch John Draw, Utah, discharge

measurements of.................. 404

Eagle Creek (tributary to Gila River) 

above pumping plant, near 

Morenci, Ariz....................

near Double Circle Ranch, near

Morenci, Ariz....................

Eagle Creek (tributary to Green River), 

Utah, discharge measurements of..

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

below Gypsum, Colo...................

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

East Main Canal, Ariz., return flow

from.............................

East Mancos River near Manaos, Colo....

East Muddy Creek near Bardine, Colo....

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

near Crested Butte, Colo.............

East Verde River, Ariz., discharge

measurement of...................

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

Edith, Colo., Navajo River at..........

Eleven-Mile wasteway, Ariz., return

flow from........................

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, Ariz., discharge

measurements of..................

near Escalante, Utah..................

Escalante River Basin, Utah, gagingstation record in. ...............

Fairvierf, Utah, Boulger Creek near..... 

Fall Creek near Fall Creek, Colo.......

near Pinedale, Wyo...................

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

La Plata River near..................

San Juan River at....................

Flat Canyon Creek, Utah, discharge

measurements of..................

Floods, special reports on.............

Florence, Ariz., Gila River near.......

Florence Creek, Utah, discharge

measurement of...................

Florence-Casa Grande Canal, diversions 

to...............................

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

Fontenelle, Wyo., Fontenelle Creek near

Green River near.....................

Fontenelle Creek near-Fontenelle, Wyo.. 

Fort Duchesne, Utah, Uinta River at....

Fort Thomas Canal, Ariz., diversion by. 

Fortification Creek at Craig, Colo.....

Fourmile Creek neat Carbondale, Colo... 

Fourness Canal, Ariz., diversion by....

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

St. Louis Creek near.................

Fraser River at Granby, Colo...........

373

372

404

77

78

168

44

316

124

103

102

410

130

286

44

197

175

75

361

407

372

272

267

146

166

304

312

277

406

11

359

406

359

309

173

156

173

246

352

198

85

352

51

50

48

Page 

Fraser River near Winter Park, Colo.... 47

Kremont ditch, Wyo., discharge measurements of......................... 164

Fremont River near Bicknell, Utah...... 269

Frisco, Colo., Tenmile Creek at........ 64

Frontier, Wyo., Hams Fork near........182-183

Fruitland, Utah, Currant Creek near...234,235 

Water Hollow near.................... 236

ateview, Colo. , Lake Fork at.......... 119

Gateway, Colo., Dolores River at....... 138

Taylor Creek near.................... 152

Geyser Creek near Paradox, Colo........ 154

Gila Gravity Main Canal at Imperial

Dam, Ariz.-Calif................. 33,35

Gila River at Ashurst-Hayden Dam, near

Florence , Ariz................... 359

at Calva, Ariz....................... 354

at Kelvin, Ariz...................... 358

at New Mexico-Arizona State line,

near Virden, N. Mex.............. 347

at Safford, Ariz..................... 353

at Winkelman, Ariz................... 357

below Blue Creek, near Virden, N. Mex. 346 

below Coolidge Dam, Ariz............. 356

below Gillespie Dam, Ariz...........360-361

discharge measurement of............. 409

diversions from, in Duncan Valley,

N. Mex.-Ariz..................... 348

in Safford Valley, Ariz............ 352

near Cliff, N. Mex................... 344

near Clifton, Ariz.................. 349

near Dome, Ariz.....................33, 362

near Gila, N. Mex.................... 343

near Red Rock, N. Mex................. 345

near Solomonsville, Ariz............350-351

See also Gila River and canals. 

Gila River Basin, N. Mex.-Ariz., discharge measurements in..........409-410

gaging-station records in...........343-401

Gillespie Canal, Ariz., monthly diversion by....................... 361

Gillespie Dam, Ariz., Gila River

below........................... 360-361

Glenwood, N. Mex., San Francisco River

near............................. 370

Glenwood Springs, Colo., Colcrado River

at............................... 17

Roaring Fork at...................... 83

Gooseberry Creek near Scofield, Utah... 261 

Gore Creek near Minturn, Cole .......... 81

Gorge Creek, Utah, discharge measurements of......................... 404

Graham Canal, Ariz., diversicn by...... 352

Granby, Colo., Colorado River near..... 14

Fraser River at...................... 48

Willow Creek near.................... 46

Grand Canyon, Ariz., Bright ^ngel Creek

near............................. 333

Colorado River near.................. 21

Grand Falls, Ariz., Little Cclorado

River at......................... 324

Grand Junction, Colo., Gunnison River

near............................. 101

Grand Lake, Colo., Colorado River near. 13 

Grand River ditch, Colo., diversion by. 13 

Granite Creek near Prescott, Ariz...... 397

Green Mountain Reservoir, Colo., Black

Creek above...................... 72

Blue River above..................... 60

Blue River below..................... 62

Cataract Creek above................. 74

Elliott Creek feeder canal to........ 75

near Kremmling, Colo................. 61

Otter Creek above.................... 73

Green River, Utah, Green River at...... 158

San Rafael River near...............265-266

Green River at Green River, Utah....... 158

at Warren Bridge, near Daniel, Wyo... 155 

discharge measurements of............ 404

near Fontenelle, Wyo................. 156

near Linwood, Utah................... 157

Green River Basin, Wyo.-Utah-Colo.,

discharge measurements in.......404-407

gaging-station records in...........155-268

Grouse Creek, Utah, discharge measurement of.......................... 405

Gunnison, Colo., Gunnison River near... 98
INDEX

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

Tomichi Creek at .................

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

below Gunnison tunnel, Colo. ......

near Grand Junction, Colo. ........

near Gunnison, Colo. ..............

North Fork, near Somerset, Colo.

Page

. 107-108 

.. 113 

.. 99 

.. 100 

.. 101 

.. 98 

.. 125

tributaries. ................ 45-94, 403-404

discharge measurements of ........ .403-404

Gunnison River Basin, Colo., gagingstation records in. ............. .95-135

Gunnison tunnel, Colo., Gunnison River

below. ........................... 100

diversion through. ................... 100

Gypsum, Colo., Eagle River below....... 78

Halls Treek, Ariz., discharge measurements of .......................... 407

Hams Fork at Diamondville, Wyo. ...... .184-186

near Frontier, Wyo. ................. 182-183

Hanksville, Utah, Dirty Devil River

near. .......................... .270-271

Hanna, Utah, Du:hesne River near 220, 221-222 

West Fork Duchesns River near. ....... 227

Wolf Creek above Rhodes Canyon, near. 228 

Hansen Creek, Ariz., discharge measurements of ......................... 407

Hassayampa River, Ariz., discharge

measurement of. .................. 410

near Morristown , A^i z ................ 431

Havasu Lake near Parker Dam, Ariz.-

Caljf. ........................... 27-28

Heiner, Utah, Price River near ......... 253

Henrys Fork at Linwood, Utah. ........ .189-191

discharge measurements of ............ 404

near Burntfork , Wyo .................. 188

near Lonetree , Wyo ................... 187

Hermosa Creek near Hermosa, Colo....... 307

Hesperus, Colo., La Plata Fiver at..... 310

Hole- in- the-Rock Creek, Ariz., discharge

measurements of .................. 407

Homestake Creek near Redcliff, Colo.... 80

Hoover Tarn, Ariz.-Nev., Colorado River 80 

below. ........................... 23

Lake Mead at ......................... 22

Horse Creek near Daniel, Wyo. ........ .160-161

Horsefly Creek near Sams , Colo ......... 148

Horseshoe Dam, Ariz., Verde River above 394 

Hot Sulphur Spring, Colo., Colorado

River at. ........................ 15

Howardsville, Colo., Animas River at... 299 

Hunt, Ariz., Little Colorado River

near ............................321,322

Huntington ''reek near Huntington,

Utah ............................. 264

Ignacio, n olo. , Los Pinos River at..... 298

Imperial Dam, Ari/. -Calif . , AllAmerican Canal near .............. 33,36

Colorado River at .................... 31,33

diversions and return flows at and

below. ........................... 35-43

Gila Gravity Main Canal at ........... .33.35

Indian f^reek, Ariz., discharge measurement of .......................... 403

lola, Colo., Gunnison River at. ........ 99

Jackson Creek, Utah, discharge measurements of.........................

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

Brush Creek near.....................

Jones Hole Creek, Utah, discharge

measurements of..................

Jones Pass tunnel, Colo., diversions to

Kahiah Creek near Whitewater, Colo.....

Kanab Creek, Utah, discharge measurements of.........................

Kane Creek, Utah, discharge measurements of.........................

Kane Springs Wash, Ariz., discharge

ment of..........................

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

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

Kremmlirig, Colo., Green Mountain Reservoir near........................

La Plata r iv,.,- at Colorado-New Mexies 

State line.......................

405

215

203

405

54

135

408

408

403

358

56

Page 

La Plata River at Hesperus, Colo....... 310

near Farmington, N. Mex.............. 312

La Sal, Utah, Twomile Creek near....... 140

Labarge Creek near Viola, Wyo.......... 172

Laguna Dam (Colorado River), Ariz.-

Calif., diversions at............33, 42

Lake Canyon, Ariz., discharge measurements of......................... 407

Lake City, Colo., Cebolla Creek near... 116 

Lake Fork (Green River Basin) above 

Moon Lake, near Mountain Home, 

Utah............................. 237

below Moon Lake, near Mountain Home,

Utah............................. 239

discharge measurement of............. 406

near Upalso, Utah.................... 240

Lake Fork (Gunnison River Basin) at

Gateview, Colo................... 119

Lake Mead at Hoover Dam, Ariz.-Nev..... 22

Lake Pleasant at Lake Pleasant Dam,

Ariz............................. 400

Lake Pleasant Dam, Ariz., Agua Fria

River at......................... 399

Lake Pleasant at..................... 400

Last Chance Creek, Utah, discharge

measurements of.................. 408

Leal, Colo. , Keyser Creek near......... 56

Williams River near.................. 54

Lees Ferry, Ariz., Colorado River at... 3,20 

Paria River at....................... 317

Leroux Creek near Cedaredge, Colo...... 127

Lightner Creek near Durango, Colo...... 308

Lily, Colo., Little Snake River near... 202 

Linwood, Utah, Green River rear........ 157

Henrys Fork at...................... 189-191

Little Brush Creek near Verral, Utah..210-211 

Little Colorado River above Lyman

Reservoir, near St. Jchns, Ariz.. 318 

above Zuni River, near Hurt, Ariz.... 321

at Grand Falls , Ariz................. 324

below Lyman Reservoir, near St. Johns,

Ariz. ............................ 320

near CaSneron, Ariz................... 325

near Hunt, Ariz...................... 322

near Woodruff, Ariz.................. 323

Little Colorado River Basin, Ariz.-

N. Mex., discharge measurement in 408 

gaging-station records in...........318-332

Little Davenport Creek, Utah, discharge

measurements of.................404-405

Little Navajo River at Chroiro, Colo.... 287

Little Sandy Creek near Elkrorn, Wyo... 175 

Little Snake River near Dixcn, Wyo..... 201

near Lily, Colo. ..................... 202

near Slater, Colo.................... 200

Littlefield, Ariz., Virgin River at.... 335

Littlefield Canal, Ariz., discharge

measurement of................... 409

Lonetree, Wyo., Henrys Fork near....... 187

Los Pinos River at Ignacio, Colo....... 298

below Snowslide Canyon, near Weminuche

Pass , Colo...................... 294-295

near Bayfield, Colo.................. 297

Lost Canyon Creek at Dolores, Colo..... 139

Lyman, Wyo., Blacks Fork near.......... 178

Lyman Reservoir near St. Johns, Ariz... 319

McElmo Creek, Colo., discharge measurements of.........................

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

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

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

Main drain, Ariz., return flow from....

Mancos, Colo., East Mancos River near..

Middle Mancos River near.............

West Mancos River near...............

Vlanila, Utah, Carter Creek near........

Iheep Creek near.....................

Vlason, Wyo., North Piriey Creek near....

Vlaybell, Colo., Yampa River near.......

Vlayer, Ariz., Agua Fria Rive" near.....

dotf Creek near Tabernash, Colo......

Meadow Valley Wash near Panama, Nev....

Vleeker, Colo., White River, near........

"lesa, Colo., Coon Creek near...........

Mesa Creek near......................

"lesa Creek near Mesa, Colo. ............

Middle Mancos River near Mancos, Colo..

407

392

137

122

44

316

315

314

194

193

170

196

398

53

340

251

93

94

94

315
INDEX

Page 

Middle Piney Creek below South Fork,

near Big Piney, Wyo.............. 171

Mill Creek, Ariz., discharge measurements of. 403 

Millburne, Wyo., Blacks Fork near...... 176

Mineral Creek near ?ilverton, Colo..... 306

Minnesota Creek near Paonia, Colo...... 126

Minnie Maud rreek, Utah, discharge

measurements of.................. 406

Minturn, Colo., Gore Creek near........ 81

Moddle canal at New Mexico-Arizona

State line, near Virden, N. Mex.. 367 

diversion by......................... 348

near Virden, N. Mex.................. 366

Moenkopi Wash near Tuba, Ariz.......... 332

Moffat tunnel, Colo., diversions to..47,48,49 

Moki Creek, Ariz., discharge measurement of.......................... 407

Molina, Colo., Bull Creek near......... 92

Cottonwood creek near................ 91

Monarch Lake Outlet, Calif., Arapho

Creek at......................... 45

Montezuma Canal, Ariz., diversion by... 352 

Moon Lake Reservoir near Mountain Home,

Utah. ............................ 238

Morenci, Ariz., Eagle Creek near......372,373

Willow Creek near................... 375,376

Willow Creek diversion from Black

River near....................... 374

Morristown, Ariz., Hassayampa River

near............................. 401

Mountain Home, Utah, Brown Duck Creek

near............................. 241

Lake Fork near...................... 237,23,9

Moon Lake Reservoir near............. 238

Rock Creek near...................... 229

Mountainview, Wyo. Smith Fork at...... 180

Muddy Fiver, Nev. , discharge measurements of......................... 409

Myton, Utah, Duchesne River at......... 225

Naturita, Colo., San Miguel River at... 145 

Naturita Creek near Norwood, Colo...... 150

Navajo Creek, Ariz., discharge measurements of......................... 408

Navajo River at Banded Peak Ranch, near

Chromo, Colo ..................... 285

at Edith, Colo....................... 286

Needles, Calif., Colorado River at..... 24

Neola, Utah, Uinta River near.... 243-244,245

Nevada Canal. See Dodge-Nevada Canal. 

New Fork River 'Below New Fork Lake,

near Cora, Wyo................... 162

near Boulder, Wyo.................... 1C3

New Harmony, Utah, Ash Creek near...... 337

Nigger Bill Creek, Ariz., discharge

measurements of.................. 403

Nogales, Ariz., Santa Cruz River near.. 381 

North Gila Valley Canals, diversion by,

at Laguna Dam, Ariz.-Calif....... 33,42

North Piney Creek near Mason, Wyo...... 170

Norwood, Colo., Beaver Creek near...... 147

Naturita Creek near.................. 150

Nucla, Colo., Cottonwood Creek near.... 149

Tabeguache Creek near................ 151

Oak Creek (tributary to Colorado River),

Utah, discharge measurement of... 408

Oak Creek (tributary to Verde River),

Ariz., discharge measurement of.. 410

Oaks Park Canal near Vernal, Utah...... 209

Ohio, Colo., Quartz Creek near......... 114

Ohio Creek near Baldwin, Colo. ......... 106

near Gunnison, Colo. ................107-108

Onion Creek, Ariz., discharge measurements of......................... 403

Orangeville. Utah, Cottonwood Creek

near............................. 268

Otter Creek above Green Mountain

Reservoir Colo.................. 73

Pagosa Springs, Colo., Piedra River near 288 

Rio Blanco near Hito Blanco near..... 284

Fan Juan River at.................... 274

San Juan River near.................. 273

Turkey Creek near.................... 282

Weminuche Creek near................292-293

West Fork San Juan River near.......280,281

Williams Creek near.................290-291

Page 

Palo Verde Canal near Blythe, Calif.... 30

Panaca, Nev., Meadow Valley Wash near.. 340 

Paonia, Colo., Minnesota Creek near.... 126

Paradise Creek near Whiterocl's, Utah... 250 

Paradox, Colo., Buckeye Reservoir Outlet near......................... 143

Deep Creek near...................... 154

Geyser Creek near.................... 154

West Paradox Creek near.............. 141

Paria River at Lees Ferry, Ariz........ 317

Parker, Ariz., diversion for Colorado

River Indian Reservation near.... 30

Parker Dam, Ariz.-Calif., Colorado

River below...................... 29

Havasu Lake near..................... 27-28

Parlin, Colo., Cochetopa Creek near.... 115

Tomichi Creek at..................... 112

Parshall, Colo., Williams River near... 55 

Patagonia, Ariz., Sonoita Creek near... 384 

Peridot, Ariz., San Carlos River near.. 378 

Perry Canal, Ariz., diversion by....... 398

Piedra River at Bridge ranger station,

near Pagosa Springs, Colo........ 288

near Piedra, Colo.................... 289

Pilot Knob wasteway, Calif., AilAmerican Canal above............. 33,37

Colorado River and, at Rockwood gate,

Calif............................ 33,34

near Pilot Knob, Calif............... 33,41

Pine Creek at Pinedale , Wyo............ 164

Pine River. See Los Pinos River.

Pinedale, Wyo77~Fall Creek near........ 166

Pine Creek at........................ 164

Pole Creek near...................... 165

Piney River near State Bridge, Colo.... 76

Placerville, Colo., San Miguel River

near............................. 144

Planet, Ariz., Bill Williams River at.. 3 

Plateau Creek near Cameo, Colo......... 88

near Collbran, Colo.................. 87

Pole Creek below Little Half Moon Lake,

near Pinedale, Wyo............... 165

Pool Creek, Colo., discharge measurement of.......................... 405

Pot Creek, Colo., discharge measurements of......................... 405

Powderhorn, Colo., Cebolla Creek at.... 117

Prescott, Ariz., Granite Creek near.... 397

Price River above Scofield Reservoir,

near Scofield, Utah.............. 254

at Woodside, -Utah. ................. .259-260

discharge measurement of............. 406

near Heiner, Utah.................... 258

near Scofield, Utah.................. 257

Publications on stream flow by Geological Survey.......................5-9,11

by State agencies .................... 9-10

Puerco River near Adamana, Ariz........ 329

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

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

near Tabernash, Colo.................

Randlett, Utah, Duchesne River near....

Range Creek, Utah, discharge measurement of..........................

Rattlesnake Creek, Utah, discharge

measurements of..................

Raven, Colo., West Divide Creek near...

Red Creek, Utah, discharge measurement

of...............................

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

Red Reck, N. Mex., Gila River near.....

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

Homes take Creek near.................

Turkey Creek at......................

Redington, Ariz., San Pedro River at... 

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

Rillito, Ariz., Santa Cruz River at....

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

Rio Blanco near Pagosa Springs, Colo... 

Rippling Brook, Colo., discharge

measurement of...................

Rito Blanco near Pagosa Springs, Colo.. 

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

at Glenwood Springs, Colo. ...........

Robertson, Wyo., East Fork of Smith

Fork near........................

West Fork of Smith Fork near.........

114

51

52

226

406

406

405

313

345

77

80

79

380

84

383

386

283

405

284

82

83

179

181
416 INDEX

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

Rock Creek (tributary to Blue River)

near Dillon, Colo................

Rock Creek (tributary to Colorado

River at mtle 55.6 above Lees 

Ferry), Ariz., discharge measurements of.........................

Rock Creek (tributary to Colorado

River at mile 301.2 above Lees 

Ferry), Ariz., discharge measurements of.........................

Rock Creek (tributary to Duchesne

River) discharge measurement of., 

near Mountain Home, Utah............

Rock Creek (tributary to Green River)

discharge measurements of........

Rockwood gate, Calif., Colorado River

Page 

153

403

406

229

406

Page 

Sargents, Colo., Tomlchl Creek at...... 110

Scofleld, Utah, Gooseberry Creek near.. 261 

Price River near.................... 254,257

Scofield Reservoir near.............255-256

Scofleld Reservoir near Scofield,

Utah............................255-256

Second-feet per square mile, definition

of............................... 1

Second-foot, definition of............. 1

Second-foot-day, definition of......... 1

Sexton Canal, Ariz., diversion by...... 348

Sheep Creek, Utah, discharge measurement of.........................

near Manila, Utah...................

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

and Pilot Knob wasteway at....... 33,34

Roosevelt, Ariz., Salt River near. 

Tonto Greek near.....................

Roosevelt Dam, Ariz., Reservoir system

on Salt River at and below.......

Hosa, N. Mex., San Juan River at.......

Roubideau Creek at mouth, near Delta,

Colo.............................

Runoff in inches, definition of........

389 Shumway, Ariz., Silver Creek near. 393 ...... . - . -

275

Sablno Creek near Tucson, Ariz......... 387

Safford, Ariz.. Glla River at.......... 353

Safford Valley, Ariz., diversions from

Gila River in.................... 352

Sage Creek, Utah, discharge measurements of......................... 405

St. Johns, Ariz., Little Colorado River

near. ...........................318,320

Lyman Reservoir near................. 319

St. Louis Creek near Fraser, Colo...... 50

Saleratus Wash, Utah, discharge

measurement of................... 406

Salt River below Stewart Mountain Dam,

Ariz............................. 391

near Chrysotile, Ariz................ 388

near Roosevelt, Ariz................. 389

reservoir system on, at and below

Roosevelt Dam, Ariz.............. 390

Salt Wash, Ariz., discharge measurement of.......................... 403

Sams, Colo., Horsefly Creek near....... 148

San Carlos Reservoir at Coolidge Dam,

Ariz............................. 355

San Carlos River near- Peridot, Ariz.... 378

San Francisco River at Clifton, Ariz... 371 

near Glenwood, N. Mex................ 370

San Jose Canal, Ariz., diversion by.... 352

San Juan River at Farmington. N. Mex... 277 

at Pagosa Springs, Colo.............. 274

at Rosa, N. Mex...................... 275

at Ship Rock, N. Mex................. 278

discharge measurements of............ 407

near Blanco, N. Mex.................. 276

near Bluff, Utah..................... 279

near Pagosa Springs, Colo............ 273

West Fork, above Borns Lake, near

Pagosa Springs. Colo............. 280

near Pagosa Springs, Colo.......... 281

San Juan River Basin, Colo.-N. Mex.-

Utah, discharge measurements in.. 407 

gaglng-station records in...........273-316

Slate Creek near Dillon, Colo..........

Slate River hear Crested Butte, Colo.., 

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

Little Snake River near..............

Slater Fork near.....................

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

Smith Fork (tributary to Blacks Fork)

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

near Placervllle, Colo...............

San Pedro River at Charleston, Ariz....

discharge measurements of............

near Redlngton, Ariz.................

San Rafael River, Utah, discharge 

measurements of.

145

144

379

409

380

407 

near Green River, Utah..............265-266

San Simon Creek near Solomonsville,

Ariz.............................

Santa Clara River above Windsor Dam,

near Santa Clara, Utah...........

near Central, Utah...................

Santa Cruz River at Rillito, Ariz......

at Tucson, Ariz......................

near Nogales, Ariz. ..................

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

Saplnero, Colo., Curecanti Creek near..

Sapinero Creek at....................

Saplnero Creek at Sapinero, Colo.......

377

339

338

383

382

381

342

120

118

118

404 

193 

278 

328 

368 

diversion by......................... 348

Showlow Creek near Showlow, Ariz. 

Shriver Canal at Virden, N. Mex.

326 

Silver"creek (tributary to East Fork)

near Big Sandy, Wyo.............. 169

Silver Creek (tributary to Little

Colorado River, 

Ariz.

near Shumway,

326 

near Woodruff, Ariz.................. 327

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

Mineral Creek near...................

Skull Creek, Utah, discharge measurement of.

at Mountainview, Wyo

305

306

404

70

104

203

200

204

204

180

East Fork, near Robertson, Wyo....... 179

West Fork, near Robertson, Wyo.......

Smith Fork (tributary to Colorado

River), Utah, discharge measurement of.

Smith Fork (tributary to Gunnison River) 

near Crawford, Colo..............

Smithville Canal, Ariz., diversion by.. 

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

Snap Canyon Creek, Utah, discharge

measurement of

181

407

123

352

63

406

Soldier Springs, Utah, Stravberry

Reservoir near. .................. 230

Strawberry River near................ 231

Willow Creek near.................... 233

Soldier Summit, Utah, North Fork White 

River near.......................

White River near.

263 

262 

Solomonsville, Ariz., Gila Fiver near 350-351

San Simon Creek near.

Somerset, Colo., North Fork Gunnison

River near. 

Sonoita Creek near Patagonia, Ariz...., 

Scringdale, Utah, North Fork Virgin

River near.

Stage-discharge relation, definition

of...............................

State Bridge, Colo., Piney Fiver near.. 

Steamboat Springs, Colo., Yampa River

at.

Stewart Mountain Dam, Ariz., Salt River

below.

Straight Creek near Dillon, Colo. 

Strawberry Reservoir near Soldier

377

125

384

336

195

391

66

Strawberry River at Duchesne, Utah..... 

near Soldier Springs, Utalr

Sulphur Spring Valley, Ariz., gaglngstation record in

232

231

402

Sunset Canal above New Mexico-Arizona

State line, near Virden, N. Mex.. 364 

diversion by......................... 348

near Virden, N. Mex.................. 363

Sunset Canal wasteway near Virden,

N. Mex........................... 365

Surface Creek at Cedaredge, Colo....... 129

at Eckert, Colo...................... 130

near Cedaredge, Colo................. 128

Sycamore Creek, Ariz., discharge

measurement of................... 410
INDEX 417

Tabeguache Creek near Nucla, Colo....... 151

fabernash, Colo., Meadow Creek near....' 53

Ranch Creek near.....................' 52

Tabiona, Utah, Duchesne River near..... 223

Tacoma, Colo., Animas River above.....300-301

Taylor Creek near Gateway, Colo........ 152

Taylor Park Reservoir at Taylor Park,

Colo............................. 95

Taylor River below................... 96

Taylor River at Almont, Colo. .......... 97

below Taylor Park Reservoir. Colo.... 96

Tenmile Creek at Dillon, Colo. ...'...... 65

at Frisco, Colo...................... 64

Terms, definition 3f................... 1-2

Tidwell Canal, Ariz., diversion by..... 352

Tomichi Creek at Gunnison, Colo........ 113

at Parlin, Colo. ; .................... 112

at Sargents , Colo..................... 110

near Doyleville, Colo................ Ill

Tonto Creek above Gun Creek, near

Roosevelt, Ariz.................. 393

Topock, Ariz., Colorado River near..... '25-26

Trail Creek, Utah, discharge measurements of......................... 404

Troublesome Creek near Troublesome,

Colo. . .......................... 57-58

Tuba, Ariz. , Moenkopi Wash near........ 332

Tucson, Ariz., Rillito Creek near...... 386

Sabino Creek near.................... 387

Santa Cru? River at.................. 382

Tucson Arroyo at Vine Avenue......... 385

Tucson Arroyo at Vine Avenue, Tucson,

Ari7............................. 385

Turkey Creek (tributary to Eagle River)

at Redcliff, Colo. ............... 79

Turkey ^reek (tributary to San. Juan

River) near Pagosa Springs, Colo. 282 

Twenty-one mile wasteway, Ariz., return

flow from........................ 44

Twin Lakes tunriel, Colo.. Diversions to 82 

Twomile Creek near La Sal, Utah........ 140

Uinta River above Clover Creek, near

Neola, Utah.....................243-244

at Fort Duchesne, Utah............... 246

near Neola, Utah..................... 245

Uncompahgre River at Colons, Colo...... 132

at Delta, Colo....................... 133

Union Canal, Ariz . , diversion by....... 352

Upalco, Utah. Like Fork near........... 240

Uranium, Colo.. Roc Creek near......... 153

Urie, Wyo., Blacks Fcrk near........... 177

Vallecito Reservoir near Bayfield, Colo. 296

Valley Canal, N. Mex., diversion by.... 346 

near Virden, N. Mex.................. 369

Vasquez Creek near Winter Park, Colo... 49

Verde River below Bartlett Dam, Ariz... 396 

below Tangle Creek, above Horseshoe

Dam, Ariz. ....................... 394

discharge measurements of............ 409

reservoir system on, at and below

Horseshoe Dam, Ariz.............. 395

Vermillion Creek, Colo. discharge

measurements of.................. 405

Vernal, Utah, Ashley Creek near...212,213,214 

Brush Creek near................205-206,207

Little Brush Creek near.............210-211

Oaks Park Canal near................. 209

South Fork Ashley Creek near......... 216

Viola, Wyo., Labarge Creek near........ 172

Virden, N. Mex , Gila River near......346,347

Moddle Canal near...................366,367

Shriver canal at..................... 368

Sunset Canal near...................363,364

Sunset Canal wasteway near........... 365

Valley Canal near.................... 369

Virgin River at Littlefield, Ariz...... 335

at Virgin, Utah...................... 334

discharge measurement of............. 408

North Fork, near Springdale, Utah.... 336

Virgin River Basin, Utah-Ariz., discharge measurements in..........408-409

gaging-station records in...........334-340

Wahweap Creek, Ariz., discharge

measurements of.................. 408

Walapai Canal, Ariz., diversion by..... 33

Ward Creek below Kiser Creek, near

Cedaredge, Colo.................. 131

Warm Creek, Ariz., discharge measurements of......................... 408

Warm Springs, Ariz., discharge measurements of......................... 407

Water Hollow, Utah, discharge measurement of.......................... 406

near Fruitland, Utah................. 236

Watson, Utah, White River near......... 252

Weminuche Creek near Bridge ranker

station, near Pagosa Springs, 408 

Colo. ........................... .292-293

Weminuche Pass, Colo., Los Pinos River

near............................ 294-295

West Canyon Creek, Utah, discharge

measurement of................... 408

West Clear Creek, Ariz., discharge

measurement of................... 410

West Divide Creek below Willow Creek,

near Raven, Colo................. 86

West Fork, Utah, discharge measurement

of............................... 406

West Mancos River near Mancos, Colo.... 314

West Paradox Creek near Bedrock, Colo.. 142 

near Paradox, Colo................... 141

White River (tributary to Gresn River),

Colo., discharge measursment of.. 406 

near Meeker, Colo.................... 251

near Watson, Utah.................... 252

South Fork, near fluford, Colo........ 253

White River (tributary to Price River)

near Soldier Summit, Utah........ 262

North Fork, near Soldier Summit, Utah 263

White River (tributary to Salt River),

Ariz., discharge measursment of.. 409 

near McNary, Ariz.................... 392

Whiterocks, Utah, Paradise Craek near.. 250 

near Whiterocks, Utah................. 249

Whiterocks River near...........247-248,249

Whiterocks River above Paradise 

Creek, near Whiterocks, 

Utah............................ 247-248

Whitewater, Colo., Kahnah Cresk near... 135

Whitewater Draw near Douglas, Ariz..... 402

Williams Creek near Bridge ranger 

station, near Pagosa Springs, 

Colo............................290-291

Williams Fork, East Fork of, near

Willow Creek, Colo............... 199

Williams River near Leal, Colo. ........ 54

near Parshall, Colo.................. 55

Willow Creek, Colo., East For'< of

Williams Fork near............... 199

Willow Creek (tributary to Blue River)

near Dillon, Colo................ 67

Willow Creek (tributary to Colorado

River) near Granby, Colo. ........ 46

Willow Creek (tributary to Eagle Creek) 

near Double Circle Ranch, near 

Morenci, Ariz.................... 376

Willow Creek (tributary to Eagle Creek) 

near Point of Pines, near Morenci, 

Ariz............................. 375

Willow Creek (tributary to Granite

Creek), Ariz., discharge measurements of....................... .409-410

Willow Creek (tributary to Green River),

Utah, discharge measurements of.. 405

Willow Creek (tributary to Strawberry

River) near Soldier Springs, Utah 233

Willow Creek diversion. See Black 

River.

Winkelman, Ariz., Gila River at........ 357

Winslow, Ariz., Chevelon Fork near 329-330,330 

Clear Creek near..................... 331

Winter Park, Colo., Fraser River near 47 

Vasquez Creek near................... 49

Wolf Creek above Rhodes Canyon, near

Hanna, Utah...................... 228

Woodruff, Ariz., Little Colorado River

near............................. 323

Silver Creek near.................... 327

tfoodside, Utah, Price River at........259-260

Work . division of...................... 12

scope of............................. 1

Yampa River at Steamboat Springs, Colo. 195
INDEX

Page

Yampa River, Colo., discharge measurement of.......................... 405

near Maybell, Colo................... 196

Yellowstone Creek near Altonah, Utah... 242 

York Cansl, Ariz., diversion by........ 348

Yuma, Ariz., Colorado River at......... 32,33

gaging-stations in vicinity of....... 33

Yuma Main Canal at................... 33,39

Yuma Main Canal near................. 33,38

Yuma Main Canal wasteway at.......... 33,40

Yuma Canal, diversion by, at Laguna

Dam, Ariz.-Calif.................

Yuma Main Canal at siphon-drop power

plant, near Yuma, Ariz...........

below Colorado River siphon, at Yuma,

Ariz.............................

Yuma Main Canal wasteway at Yuma, Ariz. 

Yuma project, Ariz.- Calif., return

surface flows from...............

Page 

33,42

33.38

33.39

33.40

O