UNITED STATES DEPARTMENT OF THE INTERIOR

HAROLD L. ICKES, Secretary

GEOLOGICAL SURVEY 

W. C. MENDENHALL, Director

Water-Supply Paper 899

SURFACE WATER SUPPLY 

of the UNITED STATES

COLORADO* "^ 5 PaVER -** BASIN

cv /: *

^ Prepared undefT;he flKre^tion of 

GLENN L. PARKERT^Cjief-flydraulic Engineer

AND OF ROBERT FOLLANSBEE, J. H%ARDINER, BERKELEY JOHNSON 

AND A. B.

In cooperation witirthe Slates:of

ARIZONA, COLORAL?5f*NEV

UTAH, AND WYOMING - 

and other agewei^ ^ ,,

UNITED STATES

GOVERNMENT PRINTING OFFICE 

WASHINGTON : 1941

For sale by the Superintendent of Documents, Washington, D. C. - - - Price 40 cents (paper cover)
CONTENTS

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

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

Explanation of data.................................................................. 1

Accuracy of field data and computed results.......................................... 3

Publications......................................................................... 4

Records of discharge collected by agencies other than the Geological Survey.......... 9

Cooperation.......................................................................... 10

Division of work..................................................................... 10

Gaging-station records............................................................... 11

Colorado River Basin............................................................... 11

Colorado River main stem......................................................... 11

Colorado River near Grand Lake, Colo........................................... 11

Colorado River near Granby, Colo............................................... 12

Colorado River at Hot Sulphur Springs, Colo.................................... 13

Colorado River at Glenwood Springs, Colo....................................... 14

Colorado River near Cameo, Colo................................................ 15

Colorado River near Cisco, Utah................................................ 16

Colorado River at Lees Ferry, Arlz............................................. 17

Colorado River at Bright Angel Creek, near Grand Canyon, Aria.................. 18

Lake Mead at Boulder Dam, Arlz.- Nev........................................... 19

Colorado River below Boulder Dam, Aria.-Nev.................................... 22

Colorado River at Needles, Calif............................................... 23

Colorado River near Topock, Arlz............................................... 24

Lake Havasu near Parker Dam, Arlz.-Calif....................................... 26

Colorado River below Parker Dam, Aria.- Calif.................................. 28

Colorado River near Plcacho, Calif............................................. 29

Colorado River at Yuma, Aria................................................... 30

Ail-American canal near Imperial Dam, Calif.................................... 31

All-American canal above Pilot Knob wasteway, Calif............................ 31

All-Amerlcan canal below Pilot Knob wasteway, Calif............................ 32

Yuma main canal at siphon-drop power plant, near Yuma, Ariz.................... 33

Yuma main canal below Colorado River siphon, at Yuma, Arlz..................... 34

Yuma main canal wasteway at Yuma, Arlz......................................... 35

Tributaries above Green River.................................................... 36

Arapaho Creek below Monarch Lake, Colo......................................... 36

Willow Creek near Granby, Colo................................................. 37

Fraser River near Winter Park, Colo............................................ 38

Fraser River at Granby, Colo................................................... 39

Vasquez Creek near Winter Park, Colo........................................... 40

St. Louis Creek near Fraser, Colo.............................................. 41

Ranch Creek above forks, near Fraser, Colo..................................... 42

Ranch Creek near Fraser, Colo.................................................. 43

Ranch Creek near Tabernash, Colo............................................... 44

North Fork of Ranch Creek near Fraser, Colo.................................... 45

Middle Fork of Ranch Creek near Fraser, Colo................................... 46

South Fork of Ranch Creek near Winter Park, Colo............................... 47

Meadow Creek near Tabernash, Colo.............................................. 48

Strawberry Creek near Granby, Colo............................................. 49

Williams River below Steelman Creek, Colo...................................... 50

Williams River near Leal, Colo................................................. 51

Williams River near Parshall, Colo............................................. 52

Blue River at Dillon, Colo..................................................... 53

Blue River below Green Mountain Reservoir, near Kremmling, Colo................ 54

Snake River at Dillon, Colo.................................................... 55

Tenmile Creek at Dillon, Colo.................................................. 56

Roaring Fork at Aspen, Colo.................................................... ~ 57

Roaring Fork at Glenwood Springs, Colo......................................... 58

Crystal River near Redstone, Colo.............................................. 59

West Divide Creek below Willow Creek, near Raven, Colo......................... 60

Plateau Creek near Collbran, Colo.............................................. 61

Plateau Creek near Cameo, Colo................................................. 62

Buzzard Creek near Helberger, Colo............................................. 63

Buzzard Creek near Collbran, Colo.............................................. 64

Taylor Park Reservoir at Taylor Park, Colo..................................... 65

Taylor River below Taylor Park Reservoir, Colo................................. 66

Taylor River at Almont, Colo................................................... 67

Gunnison River at Tola, Colo................................................... 68

Gunnlson River near Grand Junction, Colo....................................... 69

East River at Almont, Colo..................................................... 70

Tomlchi Creek at Sargents, Colo................................................ 71

Tomichi Creek at Gunnlson, Colo................................................ 72

Quartz Creek near Ohio, Colo................................................... 73

Cebolla Creek at Powderhorn, Colo.............................................. 74

Lake Fork at Gateview, Colo.................................................... 75

North Fork of Gunnison River near Somerset, Colo............................... 76

East Muddy Creek near Bardine, Colo............................................ 77

Leroux Creek near Cedaredge, Colo.............................................. 78

Surface Creek above Cedaredge, Colo............................................ 79

III
IV CONTENTS

Gaglng-statlon records Continued. 

Colorado River Basin Continued.

Tributaries above Green River Continued. Page

Surface Creek at Cedaredge, Colo............................................... 80

Uncompahgre River at Colona, Colo.............................................. 81

Uncompahgre River at Delta, Colo............................................... 82

Roubideau Creek near Delta, Colo............................................... 83

Roubideau Creek at mouth, near Delta, Colo..................................... 84

Kahnah Creek near Whitewater, Colo............................................. 85

Dolores River at Dolores, Colo................................................. 86

Dolores River near McPhee, Colo................................................ 87

Dolores River at Gateway, Colo................................................. 88

Green River Basin................................................................ 89

Green River at Warren Bridge, near Daniel, Wyo................................. 89

Green River near Linwood, Utah................................................. 90

Green River at Green River, Utah............................................... 91

Beaver Creek near Daniel, Wyo.................................................. 92

Horse Creek near Daniel, Wyo................................................... 93

Cottonwood Creek near Daniel, Wyo.............................................. 94

Cottonvrood Creek near mouth, near Big Piney, Wyo............................... 95

East Fork near Big Sandy, Wyo.................................................. 96

Silver Creek near Big Sandy, Wyo............................................... 97

New Fork below New Fork Lake, near Cora, Wyo................................... 98

New Fork near Pinedale, Wyo. ................'...................... . ... 99

New Fork near Boulder, Wyo..................................................... 100

Willow Creek near Cora, Wyo.................................................... 101

Lake Creek near Cora, Wyo...................................................... 102

Duck Creek at Cora, Wyo........................................................ 103

Pine Creek at Pinedale, Wyo.................................................... 104

Pole Creek below Little Half Moon Lake, near Pinedale, Wyo..................... 105

Fall Creek near Pinedale, Wyo.................................................. 106

Boulder Creek below Boulder Lake, near Boulder, Wyo............................ 107

South Piney Creek near Big Piney, Wyo.......................................... 108

North Piney Creek near Mason, Wyo.............................................. 109

Middle Piney Creek below South Fork, near Big Piney, Wyo....................... 110

Fontenelle Creek near Fontenelle, Wyo.......................................... 112

Big Sandy Creek at Leckie ranch, near Big Sandy, Wyo........................... 113

Little Sandy Creek near Elkhorn, Wyo........................................... 115

Blacks Fork near Millburne, Wyo................................................ 117

Blacks Fork near Urie, Wyo..................................................... 118

Blacks Fork near Lyman, Wyo.................................................... 120

East Fork of Smith Fork near Robertson, Wyo.................................... 121

West Fork of Smith Fork near Robertson, Wyo.................................... 123

Henrys Fork at Linwood, Utah................................................... 125

Burnt Fork at Burntfork, Wyo................................................... 126

Yampa River at Steamboat Springs, Colo......................................... 127

Yampa River near Maybell, Colo................................................. 128

Elk River at Clark, Colo....................................................... 129

Little Snake River near Dixon, Wyo............................................. 130

Little Snake River near Lily, Colo............................................. 131

Slater Fork near Slater, Colo.................................................. 132

Ashley Creek near Vernal, Utah................................................. 133

Duchesne River at Provo River Trail, near Hanna, Utah.......................... 134

Duchesne River near Tabiona, Utah.............................................. 135

Duchesne River at Duchesne, Utah............................................... 136

Duchesne River at Myton, Utah.................................................. 137

Rock Creek near Mountain Home, Utah............................................ 138

Strawberry River at Duchesne, Utah............................................. 139

Currant Creek near Fruitland, Utah............................................. 140

Uinta River near Neola, Utah................................................... 141

Whiterocks River near Whiterocks, Utah......................................... 142

White River near Meeker, Colo.................................................. 143

White River near Watson, Utah.................................................. 144

Price River above Scofield Reservoir, near Scofield, Utah...................... 145

Price River near Scofield, Utah................................................ 146

Price River near Heiner, Utah.................................................. 147

Huntington Creek near Huntington, Utah......................................... 148

Cottonwood Creek near Orangeville, Utah........................................ 149

Fremont River Basin.............................................................. 150

Fremont River below Fish Lake, near Fremont, Utah.............................. 150

Fremont River near Bicknell, Utah.............................................. 152

San Juan River Basin............................................................. 153

San Juan River near Pagosa Springs, Colo....................................... 153

San Juan River at Pagosa Springs, Colo......................................... 154

San Juan River at Rosa, N. Mex................................................. 155

San Juan River near Blanco, N. Mex............................................. 156

San Juan River at Farmington, N. Mex........................................... 157

San Juan River at Ship Rock, N. Mex............................................ 158

San Juan River near Bluff, Utah................................................ 159

West Fork of San Juan River above Borns Lake, near Pagosa Springs, Colo........ 160

West Fork of San Juan River near Pagosa Springs, Colo.......................... 161

Turkey Creek near Pagosa Springs, Colo......................................... 162

Rio Blanco near Pagosa Springs, Colo........................................... 163

Rito Blanco near Pagosa Springs, Colo.......................................... 164

Navajo River at Banded Peak ranch, near Clromo, Colo........................... 165

Navajo River at Edith, Colo.................................................... 166

Little Navajo River at Chromo, Colo............................................ 167

Piedra River at Bridge ranger station, near Pagosa Springs, Colo............... 168

Piedra River near Piedra, Colo................................................. 169
CONTENTS V

Gaging-station records Continued. 

Colorado River Basin Continued.

San Juan River Basin Continued. Page

Williams Creek near Bridge ranger station, near Pagosa Springs, Colo.......... 170

Weminuche Creek near Bridge ranger station, near Pagosa Springs, Colo......... 171

Los Pinos River below Snowslide Canyon, near Weminuche Pass, Colo............. 172

Los Pinos River near Bayfield, Colo........................................... 173

Los Pinos River at Ignacio, Colo.............................................. 174

Animas River at Howardsville, Colo............................................ 175

Animas River at Durango, Colo................................................. 176

Animas River near Cedar Hill, N. Mex.......................................... 177

Animas River at Farmington, N. Hex............................................ 178

Mineral Creek near Silverton, Colo............................................ 179

Cascade Creek near Tacoma, Colo............................................... 180

Lightner Creek near Durango, Colo............................................. 181

Florida River near Durango, Colo.............................................. 182

La Plata River at Hesperus, Colo.............................................. 183

La Plata River at Colorado-New Mexico State line.............................. 184

La Plata River near Farmington, N. Mex........................................ 185

Cherry Creek near Red Mesa, Colo.............................................. 186

West Mancos River near Mancos, Colo........................................... 187

Mancos River near Towaoc, Colo................................................ 188

Middle Mancos River near Mancos, Colo......................................... 189

East Mancos River near Mancos, Colo........................................... 190

Paria River Basin............................................................... 191

Paria River at Lees Ferry, ArIz............................................... 191

Little Colorado River Basin..................................................... 192

Little Colorado River above Lyman Reservoir, near St. Johns, Ariz............. 192

Lyman Reservoir near St. Johns, Ariz.......................................... 193

Little Colorado River at St. Johns, Ariz...................................... 194

Little Colorado River above Zuni River, near Hunt, Ariz....................... 195

Little Colorado River near Hunt, Ariz......................................... 196

Little Colorado River near Woodruff, Ariz..................................... 197

Little Colorado River at Grand Falls, Ariz.................................... 198

Silver Creek near Woodruff, Ariz.............................................. 199

Puerco River at Gallup, N. Mex................................................ 200

Puerco River near Adamana, Ariz............................................... 201

Chevelon Fork near Winslow, Ariz.............................................. 202

Clear Creek near Winslow, Ariz................................................ 203

Salt Creek near Winslow, Ariz................................................. 204

Moenkopi Wash near Tuba, Ariz................................................. 205

Bright Angel Creek Basin........................................................ 208

Bright Angel Creek near Qrand Canyon, Ariz.................................... 208

Virgin River Basin.............................................................. 209

Virgin River at Virgin, Utah.................................................. 209

Virgin River at Littlefield, Ariz............................................. 210

North Fork of Virgin River near Springdale, Utah.............................. 211

Williams River Basin............................................................ 212

Williams River near Alamo, Ariz............................................... 212

Williams River at Planet, Ariz................................................ 213

Santa Maria River near Alamo, Ariz............................................ 214

Date Creek near Congress, Ariz................................................ 215

Diversions between Boulder Dam and Imperial Dam................................. 216

Colorado River aqueduct near Parker Dam, Ariz.-Calif.......................... 216

Diversion for Colorado River Indian Reservation, near Parker, Ariz............ 217

Palo Verde canal near Blythe, Calif........................................... 217

Gila River Basin................................................................ 218

Gila River near Gila, N. Mex.................................................. 218

Gila River near Red Rock, N. Mex.............................................. 219

Gila River below Blue Creek, near Virden, N. Mex.............................. 220

Gila River at Hew Mexico-Arizona State line, near Virden, N. Mex.............. 221

Diversions from Gila River in Duncan Valley, N. Mex.-Ariz..................... 222

Gila River near Clifton, Ariz................................................. 223

Gila River below Bonita Creek, near Solomonsville, Ariz....................... 224

Diversions from Gila River in Safford Valley, Ariz............................ 225

Gila River at Calva, Ariz..................................................... 226

San Carlos Reservoir at Coolidge Dam, Ariz.................................... 227

Gila River below Coolidge Dam, Ariz........................................... 229

Gila River at Kelvin, Ariz.................................................... 230

Gila River at Ashurst-Hayden Dam, near Florence, Ariz......................... 231

Gila River near Laveen, Ariz.................................................. 232

Gila River below Gillespie Dam, Ariz.......................................... 233

Gila River near Dome, Ariz.................................................... 234

Sunset canal near Virden, N. Mex.............................................. 235

Sunset canal above New Mexico-Arizona State line, near Virden, N. Mex......... 236

Sunset canal wasteway near Virden, N. Mex..................................... 237

Moddle canal near Virden, N. Mex.............................................. 238

Moddle canal at New Mexico-Arizona State line, near Virden, N. Mex............ 239

Shriver canal at Virden, N. Mex............................................... 240

Valley canal near Virden, N. Mex.............................................. 242

San Francisco River near Glenwood, N. Mex..................................... 243

San Francisco River at Clifton, Ariz.......................................... 244

San Simon Creek near San Simon, Ariz.......................................... 245

San Simon Creek near Solomonsville, Ariz...................................... 246

San Carlos River near Peridot, Ariz........................................... 247

San Pedro River at Palominas, Ariz............................................ 248

San Pedro River at Charleston, Ariz........................................... 249

San Pedro River near Mammoth, Ariz............................................ 250

San Pedro River at Winkelnian, Ariz............................................ 251

Aravaipa Creek near Feldman, Ariz............................................. 252
VI CONTENTS

Gaging-station records Continued. 

Colorado River Basin Continued.

Gila River Basin Continued. Page

Florence-Casa Grande canal near Florence, Ariz................................ 253

Queen Creek near Florence Junction, Ariz...................................... 254

Santa Cruz River near Nogales, Ariz........................................... 255

Santa Cruz River at Continental, Ariz......................................... 256

Santa Cruz River at Tucson, Ariz.............................................. 257

Santa Cruz River at Rillito, Ariz............................................. 258

Santa Cruz River near Laveen, Ariz............................................ 259

Sonoita Creek near Patagonia, Ariz............................................ 260

Rillito Creek near Wrightstown, Ariz.......................................... 261

Rillito Creek near Tucson, Ariz..................."............................ 262

Sabino Creek near Tucson, Ariz................................................ 263

Pantano Wash near Tucson, Ariz................................................ 264

Salt River near Chrysotlle, Ariz.............................................. 265

Salt River near Roosevelt, Ariz............................................... 267

Reservoir system on Salt River at and below Roosevelt Dam, Ariz............... 268

Salt River at Stewart Mountain Dam, Ariz...................................... 269

Tonto Creek near Roosevelt, Ariz.............................................. 270

Verde River near Camp Verde, Ariz............................................. 271

Verde River below East Verde River, near Pine, Ariz........................... 272

Verde River above Bartlett Reservoir, near Cave Creek, Ariz................... 273

Bartlett Reservoir at Bartlett Dam, Ariz...................................... 274

Verde River above Camp Creek, near HcDowell, Ariz............................. 276

Granite Creek near Frescott, Ariz............................................. 277

Oak Creek near Cornville, Ariz................................................ 278

Diversion for city of Phoenix from Verde River, at McDowell, Aris............. 279

Diversions from Salt River at Granite Reef Dam, Aria.......................... 279

Agua Fria River near Mayer, Ariz.............................................. 280

Agua Frla River at Lake Pleasant Dam, Ariz.................................... 281

Lake Pleasant at Lake Pleasant Dam, Ariz...................................... 282

Hassayampa River near Morristown, Ariz........................................ 283

Hassayampa River near Wagoner, Ariz........................................... 285

Gillespie canal at Gillespie Dam, Ariz........................................ 286

Enterprise canal at GillesDie Dam, Ariz....................................... 287

Sulphur Spring Valley............................................................. 288

Whltewater Draw Basin........................................................... 288

Whitewater Draw near Douglas, Ariz............................................ 288

Miscellaneous discharge measurements................................................ 289

Index............................................................................... 291

ILLUSTRATION

Plate 1. Gaging-station structures: A, Colorado River at Lees Ferry, Ariz.; B, 

Williams River at Planet City, Ariz..................................
SURFACE WATER SUPPLY OF THE COLORADO RIVER BASIN, 1940

SCOPE OF WORK

This volume Is one of a series of 14 reports presenting results of measurenents of stage 

and flow made on streams, lakes, and reservoirs In the United States during the water year 

ending September 30, 1940. The work was begun in 1SS8 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 8,800 gaging stations in the United States 

and also a* many gaging stations in Alaska and Hawaii. In July 1940, 4,760 gaging stations 

were being maintained by the Geological Survey and cooperating organizations. Miscellaneous discharge measurements were made 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 on page 10.

DEFINITION OF TERMS

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

herein are defined as follows:

"Second-feet" Is an abbreviation for "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 run-off is distributed uniformly both as regards time and area.

"Run-off 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 run-off With rainfall, which is usually expressed in inches.

An "acre-foot" is the quantity of water required to cover an acre to .the depth of 1 

foot and is equivalent to 43,560 cubic feet. The term Is commonly used In connection with 

storage for irrigation.

"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 646,317 gallons and 

represents a run-off of 0.0372 inch from one square mile.

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

discharge."

"Control" is a term used to designate a feature below the gage that defines the stagedischarge relation at the gage. This feature may be a natural section, a reach of the 

channel, or an artificial structure.

EXPLANATION OF 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

1
2 EXPLANATION OF DATA

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

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

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

discharge. Typical structures in use at gaging stations are shown on plate 1.

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

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

For most of the gaging stations In the area covered by this report the data presented 

comprise a description of the station, a table showing the daily discharge of the stream, 

and a table of monthly and yearly discharge and run-off. Skeleton rating tables are published except for those stations whose dally 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 

determined from the best 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 minimrm 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. The peak discharge for 

the year with the time of its occurrence Is given below the table of monthly discharge for 

some stations. Selected lower peaks are also given If the peak discharge exceeded the 

mean discharge for that day by more than 10 percent. This supplementary information Is 

generally not given for stations having drainage areas of less than 10 square miles or 

more than 10,000 square miles.

The table of dally discharge gives, for stations'equipped with nonrecording gages, the 

discharge In second-feet corresponding to once-daily readings of the gage or the mean of 

twice-daily readings. For flashy floods the mean daily discharge is determined from gageheight graphs based on gage readings made once or twice daily or oftener, as stated In the 

station description. 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 mean daily gage height. For stations subject to such fluctuation the mean 

daily gage height may not Indicate the true mean daily discharge, which must be obtained 

by averaging the discharge for Intervals of the day or by using the discharge integrator, 

an instrument for obtaining the mean dally discharge from a continuous gage-height graph 

and containing as an essential element the rating curve of the station.

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

reservoirs, tributary streams, or other sources, which necessitates the use o f the slope 

or fall In a reach of the stream as a factor in the determination of discharge. Information requisite for determining the slope or fall Is obtained by means of an auxiliary
GEOLOGICAL SURVEY WATER-SUPPLY PAPER 899 PLATE 1

A. COLORADO RIVER AT LEES FERRY, ARIZ. 

Note landing tower.

B. WILLIAMS RIVER AT PLANET, ARIZ.

GAGING-STATION STRUCTURES.
EXPLANATION OF DATA 3

gage set at some distance from the base gage. The auxiliary gage, if on? Is used, is 

described under "Location." 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 usval manner. Discharge for periods of Ice effect is computed on the basis of occasional winter discharge 

measurements and gage heights, 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. The days included In the 

periods of ice effect and the days during the winter period on which discharge measurements were made are indicated in the table by symbols referring to footrotes.

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

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

column headed "Maximum" gives the maximum daily discharge and not the irstantaneous discharge when the water surface was at crest stage. Likewise, in the column headed "Minimum" 

the quantity given is the minimum daily discharge. The column headed "roan" gives the 

average flow in cubic feet per second during the month.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of stream-flow data depends primarily on (1) the permanency of the stagedischarge relation and (2) the accuracy of observation 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 daily records are accurate within 

5 percent; "good," within 10 percent; "fair," within 15 percent; and "poor," within 20 or 

a higher percent.

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 "run-off 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 of reservoirs or for other changes incident to use and control. Figures of second-feet per square mile and run-off 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 fox further development, as prior appropriations 

below the station must first be satisfied.

The table of monthly discharge gives a general idea of the flow at the station. The 

table of daily discharge allows more detailed studies of the variation in flow. It should 

be borne in mind, however, that the observations in each succeeding year may be expected
4 ACCURACY OF FIELD DATA AND COMPUTED RESULTS

to throw new light on data previously published, and that greater degrees ct refinement 

In computations and records may be warranted with tha Increase In data and the use of 

Improved equipment.

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 Rive- to 

	Mississippi River).

3. Ohio River Basin.

4. St. Lawrence River Basin.

5. Hudson Bay and upper Mississippi River Basins.

6. Missouri River Basin.

7. Lower Mississippi River Basin.

8. Western Gulf of Mexico basins.

9. Colorado River Basin.

10. The Great Basin.

11. Pacific slope basins in California.

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

13. Snake River Basin.

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

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

itsgard to 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 local offices of the water-resources 

branch of the Geological Survey as follows:

East of the Mississippi River:

Albany. N. Y., 526 Federal Building.

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

Atlanta, Ga., 5 North Rhodes Center.

Augusta, Maine, Statehouse.

Boston, Mass., 945 Post Office Building.

Charlottesville, Va., House G, Dawson Row, University of Virginia.

Chattanooga, Term., 442 Post Office Building.

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

Columbia, S. C., 119 United States Courthouse.

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

Harrisburg, Pa., 490 Education Building.

Hartford, conn., 225 Capitol Building, 410 Asylum Street.

Indianapolis, Irid., 316 Federal Building.

Louisville, Ky., 652 Federal Building.

Madison, Wis., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

Ocala, Fla., 302 Post Office Building.

St. Paul, Minn., 808 New Post Office Building.

South Charleston, W. Va., Armor Park School Building.

Trenton, N. J., 228 Federal Building.

Urbana, 111., 14 Post Office Annex, Elm Street.

West of the Mississippi River:

Austin, Tex., 300 State Highway Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., 230 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.

Los Angeles, Calif., G-31 United States post Office and Courthouse.

Portland, Oreg., 606 Post Office Building.
PUBLICATIONS

Rolla, Mo., Missouri Geological Survey Building, Missouri School or Mines

and Metallurgy.

St. Louis, Mo., 926 New Federal Building. 

Salt Lake City, Utah, 303 Federal Building. 

San Francisco, Calif., 465 Federal Office Building. 

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

Tacoma, Wash., 1100 Washington Building. 

Topeka, Kans., 305 Federal Building. 

Tucson, Arlz., 210 Post Office Building.

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

Director, Geological Survey, Washington, D. C.

Records of flow of streams in the United States have been published In the reports 

tabulated as follows:

Stream-flow data in reports of the Geological Survey 

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

Report Character of data Year

10th A, pt. 2 

llth A, pt. 2 

12th A, pt. 2 

13th A, pt. 3 

14th A, pt. 2 

B 131........

16th A, pt. 2 

B 140........

W 11.........

18th A, pt. 4

Descriptive information only.

Monthly discharge and descriptive Information...

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

.do.

W 15.

19th A, pt. 4 

W 27.........

20th A, pt. 4 

W 35 to 39...

21st A, pt. 4 

W 47 to 52...

22d A, pt. 4 

W 65, 66.....

W 75.........

Monthly discharge (long-time records, 1871-93).. 

Descriptions, measurements, gage heights, and

ratings.

Descriptive Information only. 

Descriptions, measurements, gage heights,

ratings, and monthly discharge (also many

data covering earlier years). 

Gage heights (also gage heights for earlier

years). 

Descriptions, measurements, ratings, and monthly

discharge (also similar data for some earlier

years). 

Descriptions, measurements, and gage heights of

streams east of the Mississippi River and

Missouri River and tributaries above Kansas

River. 

Descriptions, measurements, and gage heights of

streams west of the Mississippi River except

Missouri River and tributaries above Kansas

River. 

Descriptions, measurements, ratings, and monthly

discharge (also some long-time records). 

Measurements, ratings, and gage heights of

streams east of the Mississippi River and

Missouri River and tributaries. 

Measurements, ratings, and gage heights of

streams west of the Mississippi River except

Missouri River and tributaries. 

Monthly discharge (also for many earlier years). 

Descriptions, measurements, gage heights, and

ratings. 

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

Descriptions, measurements, gage heights, and

ratings. 

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

Descriptions, measurements, gage heights, and

ratings. 

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

1884 to Sept. 1890. 

1884 to June 30, 1891. 

1884 to Dec. 31, 1892. 

1888 to Dec. 31, 1893. 

1893-94.

1896. 

1895-96.

1897.

1897.

IP 98.

1899.

1899.

1900.

1900.

1901.

1901.

Note.- Reports containing records for years after 1901 are given in table on page 6.

The table on the following page gives, by years and drainage basins, the numbers of 

the papers on surface water supply published from 1899 to 1340. The de.ta for any particular 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 1020 for any station In the 

area covered by part 3 are published in Water-Supply Papers 285, 303, 323, 355, 403, 433, 

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

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

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

been made each year and are published under "Miscellaneous discharge m3asurements" at the 

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

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

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

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PUBLICATIONS 7

From time to time 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 in alphabetical order by States and drainage basins.

Reports containing compilation of discharge by States and drainage -basins

Water-Supply 

Paper

107

298

299

300

447

597-E

636-D

636-E

637-A

74

197

415

230

370

850

424

492

870

469

395

617

517

618

198

491

536

279

192

35S

491

109

Year 

ending

1903

1912

1912

1912

1918

1927

1927

1927

1927

1900

1905

1915

1906

1910

1937

1916

1919

1935

1921

1914

1927

1920

1926

1906

1917

1920

1909

1906

1913

1917

1904

State or drainage basin and title

STATE

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

in Mississippi .

California, Water resources of, part 1, Stream measurements

Sacramento River Basin.

California, Water resources of, part 2, Stream measurements

Joaquin River Basin.

California, Water resources of, part 3, Stream measurements

Great Basin and Pacific coast river basins.

California, southern, Surface water supply of Pacific slope

California, Surface water supply of Sacramento River Basin.

California, Surface water supply of San Joaquin River Basin

California, southern, Surface water supply of Pacific slope

in.

California, Surface water supply of minor San Francisco Bay

ern Pacific, and Great basins in.

Colorado, Water resources of.

Georgia, Water resources of.

Massachusetts, Surface waters of.

Nebraska, Surface water supply of .

Oregon, Surface water supply of.

Texas, Summary of records of surface waters of.

Vermont , Surface waters of .

Washington, Summary of hydrometric data in.

Washington, Summary of records of surface waters of.

Wyoming, Surface waters of, and their utilization.

DRAINAGE BASIN

Colorado River (Ariz., Colo., N. Mex., Utah, Wyo.) and its

utilization.

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

Great Salt Lake Basin, Water powers of.

Green River (Utah, Wyo.) and its utilization.

Kennebec River Basin (Maine), Water resources of.

Milk; River. (See St. Mary and Milk Rivers.)

New-Kanawha River Basin (N. C., Va., W. Va.), Surface water

of.

Penobscot River Basin (Maine), Water resources o* .

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

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

1913.

St. Mary and Milk Rivers (Mont., Canada), Water supply of.

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

in

in San

in the

of.

basins

, northsupply

, 1S88-

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 compilation of records of discharge

State

Alabama .....

Connecticut.' 

Do.......

Georgia. .... 

Do.......

a Includes 

b Includes

Year 

ending

1915 

1928

1926

1907 

1920b

records 

records

Report

Bull. 17, Water powers of Alabama....

Bull. 44, Water resources of 

Connecticut.

Bull. 16, Water powers of Georgia....

of monthly discharge In second-feet pe 

for years 1907- IS.

Issued by

Geological Survey of Alabama.

State Geological and Natural 

History Survey.

Commission. 

Geological Survey of Georgia. 

Do.

r square mile for years 1912-33.
PUBLICATIONS

State reports containing compilation of records of discharge Continued

State

Do .......

Do.......

Minnesota. . . 

Missouri. ... 

Do.......

Do.......

New Jersey. . 

Do.......

New Mexico. . 

North Carolina. 

Do.. .....

Ohio. .......

Do.......

Do.. .....

Do .......

Do.. .....

Pennsylvania 

Do .......

Tennessee . . . 

Do.......

Utah ........

Virginia....

Washington. . 

Wisconsin. . .

Year

ending

1911

1934

1927

1930 c

1932

1919

1924"

1912 

1926

1914

1928 *

1928 

1934 3

1925 

1923

1936 k

1939"1

1924n

1930°

1911

1924 

1930r

1905

1927 

1933 

1914

1 QO-lS

Report

Indiana.

Indiana.

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

Water- resources Investigation of 

Minnesota. 

Vol. 20, 2d series, Water Resources 

of Missouri.

of Missouri.

Bull. 33, Surface water supply of 

New Jersey.

Supply of New Jersey. 

Surface water supply of New Mexico... 

Bull. 34, Discharge records of North 

Carolina Streams.

Carolina streams.

records of Ohio.

of Oregon.

of Oregon.

of Oregon.

of Oregon. 

Report of the Water Supply Commission 

of Pennsylvania .

Bull. 34, Water resources of 

Tennessee.

Tennessee .

Bull. 31, Water resources of 

Virginia. 

Bull. 5, Monthly and yearly summaries 

of hydrometric data. 

1st report of Railroad Commission of 

Wisconsin to Legislature on water 

powers.

Wisconsin to Legislature on water 

powers.

Issued by

Department of Conservation.

Do.

Iowa State Plarnlng Board.

Do.

Agriculture. 

Do.

Do.

State Drainage Commission.

Missouri Geological Survey 

and Water Resources.

gation, and Drainage.

Do.

Department of Conservation 

and Development.

Commission. 

Office of the State Engineer. 

Department of Conservation 

and Development. 

Do.

tion, Ohio Stete University

Division of Conservation 

and Natural Resources.

Water Supply Commission of 

Pennsylvania.

Waters . 

Department of Education.

Conservation and Development 

Commission. 

Department of Conservation 

and Development. 

Railroad Commission of 

Wisconsin.

c Includes records for years 1927-30.

d Includes records for years 1919-24.

e Includes records for years 1924-28.

f Includes records for years 1928-35.

g Includes records for years 1935-39.

h Includes records for years 1927-39.

i Includes records for years 1914-28.

j Includes- records for years 1928-34.

k Includes records for years 1889-193b: 

records of daily and monthly discharge are not included.

1 Includes all available records prior to 1921.

m Includes records fcr years 1902-39.

n Includes records for years 1914-24.

o Includes records for years 1924-30.

p Includes records for years 1930-36.

q Includes records for years 1928-32.

r Includes average weekly discharg3 for years

1920-30. 

s Includes records for years 1914-23.

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, IdaJio, Indiana, Missouri, Montana, Nebraskf, New Mexico, 

New York (also New York City Board of Water Supply), North Dakota, Oregon, Pennsylvania, 

Utah, Washington, and Wyoming.
PUBLICATIONS

The reports listed In the foregoing tables cental a the customary records of discharge 

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

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

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

reports also contain other pertinent hydrologlc Information and analyses and compilations 

of data relating to earlier noteworthy floods. The following list give? the numbers and 

titles of these reports.

Water-Supply Tltie 

Paper

88 The Passalc flood of 1902.

92 The Passalc flood of 1903.

96 Destructive floods In the United States In 1903.

147 Destructive floods In the United States In 1904.

162 Destructive floods In the United States In 1905.

334 The Ohio Valley flood of March-April 1913.

426 Southern California floods of January 1916.

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

488 The floods in central Texas In September 1921.

520-G Some floods In the Rocky Mountain region.

636-C The New England flood of November 1927.

771 Floods in the United States, magnitude and frequency.

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

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

796-C Flood In La Canada Valley, California, January 1, 1934.

798 The floods of March 1936, Part 1, New England Rivers.

799 The floods of March 1936, Part £, 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 Hartford, Conn.

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

842 Floods in Canadian and Pecos River Basins of New Mexico, May and June 1937.

843 Floods of December 1937 in northern 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.

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 

The following table contains a list of gating stations for the area covered by this 

report at which records of daily discharge were collected during the water year October 

1939 to September 1940 by agencies other than the Geological Survey. The records for 

these stations are not contained In publications of the Geological Survey, nor have they 

been published elsewhere, but they are available in the files of the organizations named. 

Records of dally discharge collected by agencies other than the Geological Survey

Stream

Ashley Creek. ........ 

Big (Kolob) Creek..-. 

Boulgep Creek ........

Brush Creek .......... 

Do ................ 

Dry Pork ..............

Gooseberry Creek

Santa Clara Creek.... 

Do ................

Do ................

Sheep Creek (Korth 

Pork).

Sheep Creek (South 

Pork). 

White River. .........

White River (Left 

Pork).

Location

Rainbow Bridge, near New Harmony, 

Utah. 

Below Dry Pork, near Vernal, Utah. ..... 

Kolob Mountain, near Virgin, Utah- ..... 

Near proposed diversion, 9 miles east 

of Palrvlew, Utah. 

Buckle Ranch, near Jensen, Utah. ....... 

Tyzach Ranch, near Vernal, Utah. ....... 

Above Sinks, near Vernal, Utah. ........ 

Gooseberry upper dam alte, near Pairview, Utah.

At Mamouth dam site near Scofleld, 

Utah.* 

Lower dam site, near Central, Utah..... 

Below Wlnsor Dam, near Santa Clara, 

Utah. 

Near Gunlock, Utah. .................... 

Near Central, Utah. ....................

Above Lucerne Valley canal, near 

Manila, Utah. 

Below Lucerne Valley canal, near 

Manila, Utah. 

Above Lucerne Valley canal, near 

Manila, Utah. 

Below Left Pork, 1 mile east of 

Soldier Summit, Utah. 

Above forks, near Soldier Summit, Utah.

Period

19S9-40

1939-40 

1939-40 

19S8-40

1939-40 

1939-40 

1939-40 

1928-29, 

1931, 

1938-40 

1940

1939-40 

1939-40

1939-40 

1939-40 

1939-40 

1939-40

1939-40 

1939-40 

1938-40 

1938-40

Collected by

Bureau17. I-?.

l~.

I".

r-. 

r?.

Bureau 

Water 

Con-mi 

Bureau

r-. 

r-.

Do-

]>. 

F". 

Do.

Do. 

Do. 

Do. 

Do.

of Reclamation.

of Reclamation and 

Storage 

sslon. 

of Reclamation.

*Pormer Geological Survey station.

Hote.- The Soil Conservation Service began In 1936 to make studies of run-off from four areas 

comprising less than 3,000 acres each, seven areas comprising between 3,000 and 10,OOO acres each, 

and three areas comprising between 10,000 and 50,000 acres each In the vicinity of Mexican Springs, 

N. Mex. The records are In the files of that organization.
10 COOPERATION

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

Arizona (all stations except Virgin River at Littlefield): Office of the State 

Water Commission, J. C. Wanslee, commissioner; Salt River Valley Water Users' Association (for certain stations in Salt River Basin); Metropolitan Water District of 

Southern California (for certain stations on Williams River and for Colorado River 

below Boulder Dam); and Maricopa County Water District No. 1 (for stations on Agua 

Fria River).

Colorado: Office of the State engineer, M. C. Hinderlider. 

New Mexico: Office of the State engineer, T. M. McClure; and the New Mexico 

Interstate Stream Commission, T. M. McClure, Secretary. 

Utah: Office of the State engineer, T. H. Humpherys. 

Wyoming: Office of the State engineer, L. C. Bishop.

Funds were furnished by the Corps of Engineers, U. S. Army, for the construction and 

maintenance of eight gaging stations in Arizona and one in Hew Mexico.

Assistance in collecting the records was rendered also by the following municipalities, 

organizations, corporations, and individuals:

Arizona: Gila water commissioner, Charles A. Firth, appointed by the United 

States District Court.

Colorado: Denver Board of Water Commissioners, Bureau of Reclamatior, and 

Uncompahgre Valley Water Users' Association. 

New Mexico: Office of Indian Affairs. 

Utaht National Park Service, Bureau of Reclamation, and Office of Irdian Affairs.

DIVISION OF WORK

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

Survey, Glenn L. Parker, chief hydraulic engineer, Carl G. Paulsen, assistant chief 

hydraulic engineer, and Rudolph G. Kasel, chief of the division of surface waters. The 

data for the stations In the several States were collected and prepared for publication 

under supervision of district engineers as follows: In Arizona (except for Virgin River 

at LittlefIeld), in California, In Nevada, and for Puerco River at Gallup, N. Mex., and 

Gila River below Blue Creek, near Virden, N. Mex., J. H. Gardiner; in Colorado (except 

for Los Pinos River at Ignacio), 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 the stations named above) and for Los Pinos River at Ignacio, 

Colo., Berkeley Johnson; in Utah (except for the stations named below) and for Virgin 

River at Littlefield, Ariz., A. B. Purton; in Wyoming and for Green River near Linwood, 

Utah, and White River near Watson, Utah, Robert Follansbee.

The records were reviewed and the manuscript prepared for publication unde" the direction of B. J. Peterson, engineer In charge, and M. C. Boyer, associate engineer, 

section of reports.
GAGING-STATION RECORDS 

COLORADO RIVER BASIN

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., half a mile upstream from Grand Lake outlet and 3 miles south of town of Grand 

Lake.

Drainage area.- 101 square miles.

Records avallable.- July 1904 to September 1909, September 1910 to September 1918, and 

nay 1954 to September 1940.

Average discharge.- 19 years, 125 second-feet.

Extremes.- Maximum discharge during year, 406 second-feet June 3 (gage height, 3.79 

feet); minimum dally, 10 second-feet Dec. 19-22, 24, 26-28, 30, 31, Jan. 1.

1904-9, 1910-18, 1934-40: Maximum discharge, 1.840 second-feet June 15, 16, 1918 

(gage height, 7.0 feet, site and datum then In use); minimum, 1.6 second-feet June 

17, 1934 (gage height, 1.32 feet).

Remarks.- Records excellent except those for periods of Ice effect, which are fair.

Diversions above station for Irrigation. Transmountaln diversion by Grand River ditch 

through La Poudre Pass to Cache la Poudre River Basin.

Rating table, water year 1939-40, except periods of ice effect (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Mar. 9, 10, Mar. 17 to Apr. 17)

1.7

1.8

1.9

2.0

2.2

2.3

2.6

3.1

3.2

194

220

3.4

3.7

280

375

Discharge, in second-feet, water year October 1939 to September 1ST40

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

28 

27 

31 

30

29 

28 

29 

36 

38

40 

31 

30 

29

29

31 

32 

29 

25 

24

23 

22 

22 

22 

23

23 

24 

24 

22 

22 

24

Hov.

28 

26 

24 

22 

22

24

23 

21 

21 

19

19 

18 

18 

17

17

17 

17 

16 

16 

16

16 

16 

16

15 

15

15 

16 

16 

16 

15

Dec.

15 

16 

16 

14 

13

13 

14 

14 

14 

13

12 

12 

12 

12 

12

12 

11 

11 

10 

10

10 

10 

11 

10 

11

10 

10 

10 

12 

10 

10

Jan.

10

11 

11 

11 

11

12 

11 

11 

12 

12

11 

12 

*12 

12 

12

12 

11 

12 

12 

12

12 

12 

13 

13 

13

12 

11 

12 

12 

12 

12

Feb.

12 

12 

12 

12

12

12 

12 

12 

12 

12

12 

12 

12 

11 

*13

12 

11 

11 

12 

12

12 

12 

12 

12 

12

13 

13 

13 

12

Month

Dot 

Hov

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

uary

ater year 1939-4

Mar.

13 

14 

14 

14 

13

13 

13 

14 

14 

14

14 

13 

13 

13 

13

14 

16 

16 

28 

15

14 

18 

19 

20 

21

19 

19 

19 

19 

20 

21

Apr.

25 

24 

29 

28 

29

25 

23 

26 

18 

20

19 

26 

22 

31 

46

49

50 

58 

78 

94

105 

107 

94 

103 

119

121 

119 

96 

77 

53

Seoondfoot-days

855 

557 

370

25,935.4

364 

349 

494 

1,714 

6,122 

6,012 

1,157 

823 

1,103

19,920

May

47 

58 

85

121 

152

158 

172 

181 

181 

210

265 

298 

316 

232 

204

259 

250 

204 

190 

207

210 

176 

162 

160 

181

202 

256 

238 

226 

238 

283

Mqy^Yflimf

40 

28 

16

510

13 

13 

22 

121 

316 

364 

103 

88 

60

364

June

331 

361 

364 

328 

325

325 

256 

229 

192 

170

170 

185 

192 

220 

241

220 

217 

197 

181 

181

166 

160 

142 

123 

107

101 

93 

83 

77 

75

July

78 

103 

82 

70 

61

67 

54 

49 

44

43

37 

32 

25 

23 

21

20 

21 

36 

44 

31

29 

28 

22 

19 

19

17 

16 

16 

16 

16 

18

Minimum

32 

15 

10

4.8

10 

11 

13 

18 

47 

75 

16 

12 

30

10

Aug.

16 

14 

13 

12 

12

12 

12 

12 

12 

16

21 

20 

20 

20 

19

19 

20 

18 

14 

16

19 

19 

18 

26 

43

58 

88 

80 

61 

49 

44

Mean

27.6 

18.6 

11.9

71.1

11.7 

12.0 

15.9 

57.1 

197 

200 

37.3 

26.5 

36.8

54.4

Sept.

39 

38 

35

40 

35

31 

31 

30 

37 

46

40 

36 

37 

40 

39

34 

32 

32 

33 

32

32 

34 

33 

31 

32

35 

45 

42 

42 

60

Run-off in 

aore-feet

1,700 

1,100 

734

51,430

722 

692 

980 

3,400 

12,140 

11,920 

2,290 

1,630 

2,190

39,500

swinter discharge measurement made on this day. 

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

Jan. 7, 8, 11-23, Feb. 14-27, Mar. 3-5, 7, 8, 11-16.

30, 31, Nov. 9-30, Dee. 3-20, 22, 24, 27, 28,

400453 O - 41 - 2
12 COLORADO RIVER MAIN STEM

Colorado River near Granby, Colo.

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

W., 14 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 1940.

Extremes.- Maximum discharge during year, 1,860 second-feet June 2 (gage heigtt, 3.68 

feet): minimum daily discharge, 29 second-feet Jan. 19, 22, Feb. 17.

1908-11, 1934-40: Maximum discharge, 4,100 second-feet June 20, 1909 (fage 

height, 5.5 feet, datum then in use); minimum not determined, occurred during period 

of incomplete record in winter.

Remarks.- Records excellent except those for period Aug. 15 to Sept. 30, whicr are good, 

and those for periods of ice effect, which are fair. Diversions above station for 

irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

Z 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

89 

89 

84 

87 

92

92

89 

96 

120 

123

120 

114 

109 

101 

99

96 

94 

89 

S7 

82

80 

78 

74 

72 

72

72 

74 

74 

74 

72 

74

Hov.

74 

74 

74 

70 

70

76 

74 

72 

72 

64

57 

55 

55 

54 

56

56 

56 

54 

52 

55

55 

55 

55 

54 

53

56 

56 

55 

54 

53

Dec.

60 

62 

57 

58 

54

51 

*53 

54 

54 

53

50 

47 

46 

47 

49

50 

48 

46 

43 

44

43 

41 

41 

38 

39

39 

38 

35 

37 

40 

44

Jan.

42 

40 

42 

43 

41

38 

36 

38 

35

37

35 

«33 

33 

33

31

32 

33 

30

29 

32

32 

29 

30 

32 

34

34 

34 

35 

37 

35 

36

Peb.

38 

36 

37 

37 

35

35 

36 

36 

36 

36

35 

34 

32 

30 

30

*31

29 

30 

32 

32

32 

32 

35 

36 

37

39 

40 

40 

42

Month

Oot 

HOT 

Dec

C

Jan 

Peb 

Mar 

Apr 

Hay 

Jim 

Jul 

Aug 

Sep

W

uary

ater year 1939-4

Mar.

43

42 

40 

39 

41

43 

42 

41 

42 

44

44 

40 

37 

38 

37

39 

42 

44 

44 

48

50 

46 

47 

*45 

58

78 

70 

65 

62 

66 

90

Apr.

110 

110 

94 

86 

90

94 

82 

7S 

74 

72

VO 

70 

80 

106 

134

137 

120 

134 

170 

198

198 

222 

210 

238 

260

277 

291 

282 

273 

230

Secondfoot-days

2,768 

1,816 

1,461

100,952

1,081 

1,010 

1,507 

4,590 

25,865 

32,407 

10,772 

4,509 

4,383

92,169

May

195 

191 

226

304 

458

554 

651

679 

707 

856

1,030 

1,140 

1,210 

1,000 

880

1,000 

1,100 

1,010 

888 

904

947 

770 

686 

686 

777

896 

1,110 

1,150 

1,180 

1,260 

1,420

Maximum

123 

76 

62

1,980

43 

42 

90 

291 

1,420 

1,800 

623 

390 

210

1,800

June

1,670 

1,800 

1,780 

1,560 

1,560

1,570 

1,260 

1,080 

912 

784

777 

920 

1,000 

1,240 

1,440

1,320 

1,230 

1,120 

1,040 

1,060

1,010 

938 

864 

798 

721

679 

.616 

588 

574 

536

July

524 

623 

616 

554 

482

482 

464 

418 

368 

337

318 

314 

300 

277 

260

251

264 

384 

482 

406

358 

337 

300 

273 

242

218 

198

195 

180 

177 

170

Minimum

72 

52 

35

35

29 

29

37 

70 

191 

536 

170 

80 

117

29

Aug.

160 

140 

128 

123 

120

114 

114 

112 

109 

104

104 

101 

96 

96 

92

89 

87 

87 

80 

87

99 

99 

92 

104 

153

?22

337 

390 

342 

f86 

£42

Mean

89.3 

60,5 

47.1

277

34.9

34.8 

48.6 

153 

834 

1,080 

347 

145 

146

252

Sept.

210 

184 

166 

163 

153

137 

128 

126 

144 

163

160 

147 

137 

147 

140

126 

120

117 

123 

126

131 

137 

137 

131 

128

131 

150 

160 

166 

195

Run-off in 

acre-feet

5,490 

3,600 

2,900

200,200

2,140 

2,000 

2,990 

9,100 

51,300 

64,280 

21,370 

8,940 

8,690

182,800

«Winter discharge aeaeurement made on this day.

Note,- Stage-discharge relation affected by ice Oct. 30, 31, Nov. 10-15, Nov. 18 to Ap-. 5.
COLORADO RIVER MAIN STEM 13

Colorado River at Hot Sulphur Springs, Colo.

Location.- Water-stage recorder, lat. 40°05', long. 106°05' , In sec. 1, T. 1 N., R. 78 

W. , 1 mile east of Hot Sulphur Springs and 5 miles upstream from Beaver Creek.

Drainage area.- 782 square ml les .

Average discharge.- 34 years (1904-9, 1910-24, 1925-40), 704 second-feet.

Extremes . - Maximum discharge during year, 2,820 second-feet June 2 (gage height, 3.29 

feetj; minimum daily, 69 second-feet Jan. 19.

1904-9, 1910-24, 1925-40: Maximum discharge, 10,300 second-feet June 15, 1921 

(gage height, 8.7 feet, site and datum then in use); minimum not determined, occurred 

during period of no record in winter.

Remarks.- Records good except those for period of Ice effect, which are fair. Dlverslons above station for Irrigation. Transmountaln diversion through Pioneer bore 

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

diverted during water year 1939-40 was 29,390 acre-feet (see p. 39 for record by 

months). Transmountain diversion, by Grand River ditch through La Pcudre Pass to* 

Cache la Poudre River Basin.

Discharge, In second-feet, water year October 1939 to September 1940

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.

143

140

136

143

158

154

150

150

1S8

196

188

180

168

165

158

154

150

147

143

133

133

130

127

124

121

121

130

115

127

109

118

HOT.

136

143

136

124

130

143

140

127

127

112

103

109

109

109

109

103

98

96

95

100

102

100

98

96

95

97

99

97

96

95

-

Dec.

103

106

103

99

96

92

95

*96

100

10O

98

94

91

92

94

95

94

92

88

86

87

84

83

85

82

83

83

77

81

88

94

Jan.

94

91

94

96

96

8S

82

85

80

81

*78

75

72

75

73

72

75

73

69

72

75

73

71

78

83

84

83

84

86

83

86

Feb.

89

87

90

93

90

90

92

94

96

96

97

97

95

93

90

90

*92

90

*90

94

94

94

94

loo

105

109

112

114

120

_

-

Month

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

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

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

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

Water year 1939-'to..... .................

Mar.

120

118

116

118

122

126

124

122

125

130

135

130

124

124

128

132

140

148

152

160

165

160

160

2OO

«257

300

254

208

184

172

220

Apr.

300

291

2OO

204

225

241

192

168

200

184

168

150

188

268

370

370

286

315

410

498

522

522

504

492

510

558

598

612

57O

504

-

Secondfoot-days

4 499

3*324

2,841

175 ,042

257

2^787

4 8Y4

10,620

43,392

45,041

6 ,361

6,523

147,761

May

456

450

52S

688

930

1,070

1,180

1,210

1,210

1,420

1,660

1,820

1,950

1,690

1,500

1,610

1,770

1,720

1,490

1,480

1,680

1,430

1,220

1,190

1,250

1,430

1,740

1,820

1,810

1,900

2,090

MftTSnnwi

196

143

106

3,470

96

120

612

2^640

468

305

2,640

June

2,440

2,640

2,620

2,220

2,250

2,3OO

1,930

1,610

1,340

1,140

1,090

1,210

1,300

1,600

1,820

1,770

1,630

1,500

1,380

1,370

1,420

1,400

1,200

1,070

950

891

819

747

712

672

-

July

eso

£46

855 eio

ege

VI 2

f48

eo5

522

468

456

456

420

400

360

360

395

612

672

540

468

435

385

340

310

277

259

259

250

250

246

IHniTmiiii

1O9

95

77

77

69

87

116

150

450

672

115

176

69

Aug.

233

208

200

18S

184

172

176

176

172

161

172

158

140

133

133

124

124

118

115

130

150

172

158

165

241

305

405

468

420

355

305

Mean

145

111

91.6

480

SO 96*1,9

15V

354

1,400

1,501

484

205

217

404

Sept.

S68

241

820

329

816

192

180

176

186

229

229

204

196

204

200

192

184

180

192

220

208

216

212

SOB

204

220

268

272

272

305

"

Run-off in 

acre-feet

8,920

6,590

5,640

347,200

4,970

5,530

9,670

21,060

86 ,070

89,340

12 ,62C

12,940

293 ,100

 Winter discharge measurement made on this day.

Note,- Stage-discharge relation affected by ice Nov. 16 to Har. 25.
14 COLORADO RIVER MAIN STEM

Colorado River at Glenwood Springs, Colo.

Location.- Water-stage recorder, lat. 39°33', long. 107°19', in sec. 9, T. e 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.

Drainage area.- 4,560 square miles.

Records available.- January 1900 to September 1940. May to July 1899, at site Just 

above Roaring Fork.

Average discharge.- 41 years (1899-1940), 2,985 second-feet.

Extremes.- Maximum discharge during year, 11,100 second-feet June 3 (gage height, 7.90 

feet); minimum daily, 369 second-feet Dec. 28.

1900-1C40: Maximum disrharee , 30,100 second-feet June 14, 15, 1918 (gage height, 

12.55 feet); minimum daily, 286 second-feet Jan. 22, 1935.

Remarks.- Records excellent except those for periods Dec. 25 to Feb. 29 and July 20 to 

Aug. 31, which are good. Diversions above station for irrigation. During low-water 

period, flow is regulated by Shoshone power plant, 6 miles above station.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Jan. 3 to Feb. 27, July 20 to Aug. 28)

2.4 

2.7 

3.1 

3.4

338

475

700

915

3.7 

4.1 

4.6 

5.4

1,190

1,640

2,380

3,860

6.0 

7.8

5,220

10,760

Discharge, in second-feet, water year October 1939 to September 1940

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.

821 

932 

907 

859 

875

932 

915 

867

1,020 

1,000

949

1,030 

1,090 

1,050 

1,050

903 

903 

911 

796

892

832 

1,040 

691 

794 

761

750 

766 

873 

851 

728 

778

Hov.

780 

802 

765 

787 

951

805 

831 

864 

862 

841

675 

910 

75O 

812 

766

766 

736 

654 

627 

636

574 

664 

708 

633

717

602 

692 

775 

633 

709

Dec.

618 

673 

638 

672 

730

662 

620 

631 

632 

715

638 

709 

685 

580 

598

520 

663 

680 

508 

448

514 

554 

547 

525 

490

513 

385 

369 

405 

495 

554

Jan.

673 

640 

676 

664 

616

628 

592 

552 

574 

634

652 

574 

658 

558 

542

449 

506 

624 

436 

488

552 

505 

467 

474 

598

569 

670 

646 

640 

610 

616

Feb.

598 

616 

700 

646 

652

628 

652 

652 

604 

592

598 

616

547 

580 

569

670 

545 

547 

580 

604

564 

592 

616 

688 

732

746 

752 

765 

758

Month

Oot 

Hov 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jill 

Aug 

Sep

W

ua

a tar year 1939-4

Mar.

821 

799 

760 

741 

713

592 

709 

667 

702 

759

750 

741 

764 

561 

611

523 

737 

691 

759 

645

719 

763 

744 

941 

945

1,060 

1,060 

1,120 

1,120 

1,020 

983

Apr.

983 

1,130 

1,280 

1,310 

1,070

1,050 

1,160 

1,110 

1,000 

1,000

966 

924 

835 

867 

983

1,200 

1,400 

1,430 

1,400 

1,420

1,830 

2,120 

2,170 

2,140 

2,200

2,400 

2,580 

2,690 

2,600 

2,350

Seoondfoot-days

27,564

22,327 

17,971

850,690

18,083 

18,409 

24,520 

45,598 

179,130 

182,740 

63,403 

29,265 

30,748

659,758

May

2,090 

1,960 

2,160 

2,670 

3,860

3,820 

4,190 

4,410 

4,570 

4,980

5,820 

6,840 

7,750 

7,910 

7,140

7,020 

7,500 

7,350 

6,750 

6,390

6,270 

6,300 

5,700 

5,510 

5,680

6,120 

6,780 

7,380 

7,720 

7,940 

8,550

Maximum

1,090 

951 

730

12,800

676 

765 

1,120 

2,690 

8,550 

10,600 

3,380 

1,590 

1,330

10,600

June

9,640 

10,300 

10,600 

9,960 

9,000

8,490 

7,820 

6,720 

5,970 

5,220

4,640 

4,670 

5,120 

5,730 

6,300

6,270 

6,060 

6,030 

5,760 

5,450

5,650 

5,480 

5,270 

4,740 

4,320

3,940 

3,720 

3,480 

3,270 

3,120

July

2,990 

3,060 

3,310 

3,380 

3,360

3,030 

2,790 

2,670 

2,430 

2,250

2,090 

1,910 

1,830 

1,740 

1,670

1,620 

1,580 

1,700 

2,060 

2,400

2,090 

1,800 

1,650 

1,540 

1,430

1,340 

1,290 

1,190 

1,100 

1,120 

983

Minimum

691 

574 

369

369

436 

545 

523 

835 

1,960 

3,120 

983 

542 

710

369

Aug.

958 

1,000 

1,000 

932 

859

828 

786 

800 

859 

664

758 

843 

746 

758 

835

700 

634 

652 

765 

908

542 

915

1,000 

1,020 

983

1,070 

1,340 

1,500 

1,590 

1,540 

1,480

Mean

8f9 

744 

5fO

2,331

5f3 

655 

7?1 

1,5?0 

5,778 

6,0fl 

2,045 

944 

1,0!T5

1,8C3

Sept.

1,320 

1,210 

1,020 

958 

924

932 

940 

895 

802 

912

710 

996 

1,060 

945 

975

935 

932 

936 

943 

994

1,150 

1,100 

949 

,040 

,080

,070 

,110 

,290 

1,330 

1,290

Run-off in 

acre-feet

54,670 

44,280 

35,640

1,687,000

35 ,870 

36,510 

48,630 

90,440 

355,300 

362,500 

125 ,800 

58,050 

60,990

1,309,000
COLORADO RIVER MAIN STEM 15

Colorado River near Cameo, Colo.

Location.- Water-stage recorder, lat. 39°13', long. 108°15', In sec. 6, T. 10 S., R. 97 

W., 3.4 miles upstream from Plateau Creek and 6.7 miles northeast of Cameo.

Drainage area.- 8,055 square miles.

Records available.- October 1933 to September 1940.

Extremes.- Maximum discharge during year, 16,600 second-feet June 3 (gage height, 7.82 

feet); minimum dally, 700 second-feet Dec. 29.

1933-40: Maximum discharge, 36,000 second-feet June 16, 1935 (gare height, 10.91 

feet); minimum dally, that of Dec. 29, 1939.

Remarks.- Records excellent except those for period Nov. 11 to Feb. 10, which are good, 

nany diversions above station for Irrigation.

Rating tables, water year 1939-40, except periods of Ice effect (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Nov. 12 to Dec. 17, Dec. 20-25)

Oct. 1 to Jan. 31 Feb. 1 to Sept, 30

1.0 650 1.3 930 

1.2 800 2.1 1,770 

1.4 980 2.6 2,400 

1.8 1,390 4.0 4,660 

2.1 1,760 5.0 6,920 

6.5 11,150 

7.7 16,100

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

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 

SO 

31

Oct.

1,620 

1,550 

1,600 

1,600 

1,600

1,5SO 

1,630 

1,6SO 

1,630 

1,710

1,700 

1,650 

1,720 

1,750 

1,710

1,660 

1,560 

1,500 

1,570 

1,420

1,460 

1,430 

1,600 

1,320 

1,390

1,480 

1,480 

1,390 

1,390 

1,440 

1,340

Hov.

1,370 

1,410 

1,470 

1,410 

1,370

1,520 

1,410 

1,460 

1,470 

1,440

1,460 

1,310 

1,420 

1,340 

1,340

1,310 

1,280 

1,280 

1,210 

1,150

1,160 

1,140 

1,160 

1,230 

1,180

1,210 

1,150 

1,230 

1,240 

1,140

Dec.

1,160 

1,130 

1,120 

1,070 

1,120

1,150 

1,030 

1,060 

1,070 

1,070

1,130 

1,070 

1,140 

1,080 

1,000

1,020 

962 

1,020 

1,060 

944

854 

1,060 

1,080 

980 

917

900 

930 

720 

700 

820 

1,080

Jan.

1,000 

1,100 

1,090

1,100 

1,100

1,100 

1,080 

1,030 

980 

1,090

1,140 

1.1SO 

1,080 

1,110 

9SO

860 

920 

1,060 

980 

890

960 

1,030 

920 

S30 

S80

960 

960 

1,100 

1,080 

1,060 

1,040

Feb.

1,030 

1,050 

1,100 

1,120 

1,060

1,000 

950 

1,000

1,000 

970

980 

1,020 

1,010 

970 

1,060

1 ,070 

1,090 

940 

970 

1,050

1,030 

1,020 

1,090 

1,2SO 

1,2SO

1,430 

1,380 

1,320 

1,290

Month

Oot

Hers 

Dec

C

Jail 

Feto 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

«

uary

ater year 1939-4

liar.

1,250 

1,280 

1,250 

1,180 

1,150

1,160 

1,050 

1,140

1,120 

1,110

1,200 

1,220 

1,170 

1,130 

980

1,070 

1,060 

1,200 

1,150 

1,240

1,130 

1,210 

1,230 

1,270 

1,460

1,580 

1,730 

1,870 

1,760 

1,660 

1,540

Apr.

1,520 

1,580 

1,720 

1,750 

1,700

1,600 

1,630 

1,670 

1,590 

1,540

1,470 

1,450 

1,350 

1,310 

1,430

1,680 

1,930 

2,000 

2,000 

2,090

2,390 

3,000 

3,260

3,450 

3,S20

3,S60 

3,910 

4,340 

4,250 

3,910

Seoondfoot-days

48 ,160 

39,270 

31,497

1,316,777

31,690 

31,560 

39,550 

69,200 

273,140 

268 ,S70 

81,590 

41,300 

51,730

1,007,557

May

3,500 

3,190 

3,210 

3,960 

5,190

6,150 

6,610 

7,OSO 

7,830 

S,120

9,230 

1 0 ,400 

11 ,700 

12,500 

11,500

10 ,800 

11,600 

11,400 

10,100 

9,430

9,340 

9,030 

8,720 

8,390 

S.780

9,260 

9,320 

10,600 

11,400 

12 ,000 

12 ,800

Maximum

1,750 

1,520 

1,160

19 ,100

1,180 

1,430 

1,S70 

4,340 

12,300 

15 ,700 

4,170 

2,120 

3,060

15,700

June

14,100 

15,300 

15,700 

15,100 

13 ,600

12 ,400 

11 ,400 

10,100 

8,9SO 

7,960

7,020 

6,780 

7,490 

8,440 

9,230

9,170 

8,750 

8,840 

8,610 

8,190

7,960 

7,990 

7,700 

7,080 

6,320

5,720 

5,260 

4,880 

4,430 

4,320

July

4,170 

4,090 

4,020 

4,120 

4,100

3,910 

3,560 

3,370 

3,160 

2,940

2,780 

2,580 

2,420 

2,290 

2,180

2,110 

2,070 

2,130 

2,230 

2,550

2,700 

2,370 

2,130 

2,030 

1,390

1,770 

1,690 

1,690 

1,570 

1,500 

1,470

Aug.

1,410 

1,360 

1,340 

1,340 

1,290

1,240 

1,210 

1,1SO 

1,170 

1,180

980 

1,050 

1,110 

1,060 

1,060

1,130 

1,010 

940 

970 

1,090

1,130 

950 

1,270 

1,5SO 

1,4SO

1,720 

1,7SO 

2,020 

2,120 

2,090 

1,990

MiTi^wmm Mean

1,320 1,554 

1,140 1,309 

700 1,016

700 3,608

S30 1,022 

940 1,038 

9SO 1,276 

1,310 2,307 

3,190 S.S11 

4,320 8,962 

1,470 2,632 

940 1,332 

1,110 1,724

700 2,753

Sept.

1,S70 

1,690 

1,560 

1,440 

1,410

1,360 

1,350 

1.34O 

1,260 

1,230

1,270 

1,110 

1,430 

1,510 

1,500

1,520 

1,480 

1,630 

1,750 

1,910

1,890 

2,050 

2,160 

1,970 

2,000

1,990 

1,960 

2,030 

3,000 

3,060

Run-off in 

acre-feet

95,520 

77 ,390 

62,470

2,612,000

62,860 

62,600 

7S ,450 

137,300 

541,300 

533 ,300 

161,300 

31,920 

102,600

1,999,000

Note.- Stage-discharge relation affected by Ice Dec. IS, 19, Dec. 26 to Jan. 5, Jan. 15 t 

Feb. 10.
16 COLORADO RIVER MAIN STEM

Colorado River near Cisco, Utah

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

 RT~23~~E., 1 mile downstream from Dolores River and 11 miles south of Cisco.

Drainage area.- 24,100 square miles.

Records available.- November 1914 to September 1917, October 1922 to September 1940.

 October 1913 to November 1914, at site near Moab, 30 miles downstream, published as 

Colorado River near Moab, Utah; records equivalent.

Average discharge.- 22 years (1913-17, 1922-40), 8,231 second-feet.

Extremes.- Maximum discharge during year, 25,390 second-feet May 14 (gage height, 9.37 

reetj; minimum, 672 second-feet Aug. 19, 20 (gage height, 0.70 foot).

1914-17, 1922-40: Maximum discharge, 76,800 second-feet June 19, 1917 (gage 

height, 19.7 feet); minimum discharge recorded, 558 second-feet July 21, 1934 (gage 

height, 0.44 foot).

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

Discharge, IB second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

IB 

19

20

21 

22 

83 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

2,590 

2,590 

2,500 

2,590 

2,680

2,680 

2,760 

2,420 

a, 680 

2,500

2,590 

2,590

a, 500

2,590 

2,590

2,500 

2,500 

2,300 

2,2YO 

2,220

2,190 

2,110 

2,120 

2,120 

2,040

1,950 

2,190 

2,370 

2,270 

2,350 

2,270

Hov.

2,270 

2,270 

2,500 

2,500 

2,590

2,590 

2,680 

2,680 

2,680 

2,760

2,680 

2,760 

2,590 

2,760 

2,590

2,680 

2,590 

2,680 

2,320 

2,350

2,390 

2,300 

2,320 

2,420 

2,500

2,420 

2,500 

2,420 

2,590 

2,590

Dec.

2,420 

2,420 

2,230 

2,370 

2,220

2,270 

2,320 

2,270 

2,170 

2,200

2,230 

2,320 

2,200 

2,120 

2,190

1,920 

1,820 

1,800 

1,980 

2,140

1,980 

1,670 

1,770 

1,860 

2,110

1,980 

1,780 

1,710 

1,750 

1,460 

1,670

Jan.

1,840 

2,060 

2,400 

2,420 

2,420

2,420 

2,320 

2,350 

2,190 

2,110

2,190 

2,390 

2,590 

2,400

2,120

1,780 

1,710 

1,600 

1,840 

1,750

1,780 

1,930 

1,960 

1,750 

1,900

1,990 

2,200 

2,350 

2,500 

2,500 

2,390

Feb.

2,420 

2,590 

2,850 

2,760 

2,760

2,500 

2,370 

2,300 

2,280 

2,190

2,110 

2,140 

2,150 

2,110 

2,140

2,150 

2,190 

2,140 

2,030 

1,920

2,120 

2,060 

2,030 

2,070 

2,420

2,760 

3,400 

3,300 

3,030

Month

Dot 

Bov 

Dec

C

Jan 

Fet 

Mar 

Apr 

Xay 

Jim 

Jul 

Aug 

Sep

V

aleiKUr year 1939.... ..................

uary

11.....................................

ater year 1939-4

Mar.

2,850 

2,680 

2,680 

2,590 

2,500

2,420 

2,370 

2,350 

2,390 

2,300

2,340 

2,420 

2,500 

2,400

2,270

2,190 

2,120 

2,200 

2,370 

2,390

2,420 

2,370 

2,500 

2,680 

2,850

3,300 

3,580 

4,370 

4,890 

4,580 

3,970

Apr.

3,680 

3,780 

3,970 

3,780 

3,400

3,490 

3,400 

3,680 

3,680 

3,490

3,490 

3,210 

3,210 

3,300

3,580

4,270 

5,320 

5,320 

5,320 

5,760

7,430 

9,660 

10,900 

10,900 

11,600

12,200 

11,900 

12,900 

12,200 

10,600

Secondfoot-days

74,620 

75,970 

63,350

2,058,654

66,050 

69,290 

85 ,840 

189,420 

528 ,680 

372,510 

90,390 

43 ,573 

86,630

1,746,283

May

10,300 

9,660 

9,360 

9,660 

11,900

14,700 

15,100 

16,200 

16,600 

17,300

19,700 

22,100 

23 ,300 

25,000

24,100

22,500 

21,300 

22,500 

21,300 

18,500

16,600 

15,800 

15,100 

14,300 

14,300

15,100 

15,400 

16,600 

17,700 

18,100 

18,500

Ito-rimum

2,760 

2,760 

2,420

25,000

2,590 

3,400 

4,890 

12,900 

25 ,000 

22,500 

4,580 

3,210 

9,430

25,000

June

20,100 

21,700 

22,500 

22,500 

20,500

18,900 

17,300 

15 ,400 

14,000 

12,600

all ,700 

alO,800 

9,960 

10,600

11,600

12,200 

11,900 

11,200 

11,200 

10,600

9,960 

9,360 

9,360 

8,780 

7,950

7,180 

6,340 

5,880 

a5,440 

aS.OOO

July

4,580 

4,580 

4,370 

4,170 

4,270

4,170 

3,870 

3,490 

3,210 

3,630

2,760 

2,590 

2,350 

2,190

2,060

2,090 

4,470 

2,940 

2,680 

2,680

2,850 

3,030 

2,680 

2,420 

2,200

2,030 

1,720 

1,540 

1,590 

1,600 

1,580

IHn<immi

1,950

2,270 

1,460

904

1,600 

1,920 

2,120 

3,210 

9,360 

5,000 

1,540 

704 

1,380

704

Aug.

1,460 

1,320 

1,200 

1,200 

al,200

al,200 

1,220 

1,080 

970 

913

922 

895 

841 

796 

796

744 

712 

728 

704 

712

980 

1,080 

1,150 

1,200 

1,900

3,120 

3,210 

2,850 

?,940 

2,850 

?,680

Mean

2,407 

2,5?2 

2,044

5,640

2,131 

2,3F9 

2,769

6,314 i7,oeo

12,4fO 

2,916 

1,4C6 

2,868

4 ,7V1

Sept.

2,420 

2,200 

2,040 

2,040 

1,740

1,650 

1,580 

1,480 

1,380 

1,410

1,390 

1,440 

1,430 

1,460 

1,810

1,950 

2,120 

2,500 

3,030 

3,580

3,580 

4,270 

3,970 

3,970 

3,870

3,870 

3,780 

3,680 

9,430 

7,560

Run-off in 

acre-feet

148,000 

150,700 

125,700

4,084,000

131,000 

137,400 

170,300 

375 ,700 

1,048,000 

738,900 

179,300 

86,400 

171,800

3,463,000

a No gage-height record; discharge Interpolated.
COLORADO RIVER MAIN STEM 17

Colorado River at Lees Ferry, Ariz.

Location.- Water-stage recorder, lat. 36°51'45", long. 111°36'15", In KEiSEi sec. 13, 

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

River, 28 miles downstream from Utah-Arizona State line, 79 miles downstream from San 

Juan River, and 355 miles upstream from Boulder Dam. Datum of gage Is 3,106.16 feet 

(general adjustment of. 1929) or 3,106.35 feet (general adjustment of 1912) above mean 

sea level.

Drainage area.- 107,900 square miles.

Records available.- June 1921 to September 1940.

Average discharge.- 19 years, 17,120 second-feet.

Extremes.- Maximum discharge during year, 47,200 second-feet May 18 (gege height, 13.54 

feet); minimum, 1,650 second-feet Aug. 21 (gage height, 5.04 feet).

1921-40: 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 Parla River), from rating 

curve extended above 120,000 second-feet, verified at 220,000 seconc"-feet by comparison with rating curve for station near Grand Canyon.

Remarks.- Records excellent except those for period of no gage-height record, which are 

good. Diversions above station for irrigation. During the year 12f discharge 

measurements were made.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5,310 

5,500 

5,310 

5,360 

5,340

5,390 

5,340 

5,230 

5,230 

5,230

5,360 

5,610 

5,960 

6,140 

5,870

6,050 

6,110 

5,730 

5,560 

5,450

5,310 

5,150 

4,960 

4,860 

4,780

4,660 

4,540 

4,470 

4,400 

4,320 

4,440

Nov.

4,950 

4,980 

4,900 

4,980 

4,900

4,900 

4,870 

4,980 

5,060 

5,220

5,470 

5,610 

5,720 

5,960 

5,700

5,550 

5,410 

5,270 

5,250 

5,250

5,330 

5,360 

5,330 

5,060 

4,950

4,850 

4,720 

4,740 

4,820 

4,900

Dec.

5,000 

4,950 

4,870 

4,950 

5,030

4,870 

4,850 

4,770 

4,720 

4,600

4,640 

4,740 

4,740 

4,770 

4,770

4,820 

4,850 

4,770 

4,700 

4,640

4,520 

4,470 

4,380 

4,450 

4,400

4,160 

3,770 

3,680 

3,860 

3,900 

3,480

Jan.

3,100 

2,950 

3,050 

3,180 

3,300

3,590 

4,570 

4,930 

4,980 

5,110

5,270 

5,250 

5,440 

6,600 

6,120

5,550 

5,440 

5,160 

4,600 

b4 ,090

b3,680 

b3,050

b2,450 

b2,320 

b2,790

3,070 

3,120 

3,460 

3,970 

4,230 

4,210

Feb.

4,500 

4,770 

5,060 

6,210 

6,470

6,700 

6,470 

6,060 

5,810 

5,550

5,250 

5,160 

5,060 

4,980 

4,850

4,900 

4,900 

4,850 

4,770 

4,740

4,720 

4,740 

4,600 

4,400 

4,380

4,500 

4,670 

4,670 

4,980

Month

Oot 

HOT 

Dec

C

Jan 

Fob 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

»

alendar year 193

11.....................................

ater year 1939-4

Mar.

6,660 

7,740 

7,740 

7,200

6,800

6,280 

7,030 

8,400 

7,920 

8,330

8,100 

7,660 

7,590 

7,240 

7,140

6,630 

6,340

6,210 

6,120

5,840

5,810 

5,990 

5,960 

6,020 

6,120

6,240 

6,470 

7,340 

7,700 

8,360 

8,440

Apr.

9,220 

9,580 

9,420 

8,980 

8,790

9,220 

9,500 

8,820 

8,290 

8,140

8,290 

8,630 

8,480 

8,060 

7,880

7,990 

8,290 

8,630 

9,220 

9,750

10,500 

10,300 

10,300 

13,400 

18,500

19,200 

20,000 

21,100 

22,000 

22 ,600

Seoondfoot-days

163,010 

154,990 

141,120

4,456,210

128,630 

148,720 

217,420 

343,080 

1,019,500 

750 ,000 

197,490 

90,070 

203 ,080

3,557,110

May

22 ,700 

23,500 

22,200

20,800 

19,300

18,200 

20,200 

25,000

26,300 

28,900

31,500 

32,500 

35 ,300 

38,400 

41,400

44,200 

45 ,200 

45,700 

44,900 

45,300

43 ,200 

40,100 

37,900 

35,400 

34 ,300

33,100 

32,200 

32,500 

32,500 

32,900 

33,900

Maximum

6,140 

5,960 

5,030

48 ,300

6,600 

6,700 

8,440 

22,600 

45,700 

41,100 

11,600 

7,280 

14 ,600

45,700

June

34 ,700 

36,200 

38,500 

40,500

41,100

40,600 

38,500 

35 ,300 

33,700 

32,100

29,300 

26,600 

24 ,300 

21,900 

20,800

20 ,100 

20,100 

20,200 

20,400 

19,100

18,600 

18,300 

17,300 

16,600 

15 ,800

15,300 

14,700 

13,900 

13,200 

12,300

Jul'

11,400 

11,600 

11,000 

10,100 

9,340

3,980 

8,330 

7,740 

7,480 

7,280

6,830 

6,240 

5,900 

5,700 

5,360

5,110 

4,850 

4,570 

4 ,350 

4,600

5,000 

5,810 

4,670 

4,140 

4,110

4 ,380 

4,420 

4,060 

3,740 

4,700 

5,700

Minimum

4,320 

4,720 

3,480

2,370

2,320 

4,380 

5,810 

7,880 

18,200 

12,300 

3,740 

1,700 

3,030

1,700

Aug.

4,640 

3,700 

3,300 

a3 ,000 

a2,700

a2,500 

a2,400 

a2,290 

a2,220 

a2,080

a2,020 

1,950 

2,040 

2,070 

2,150

1,920 

1,830 

1,790 

2,040 

1,780

1,700 

1,840 

1,830 

2,080 

2,670

3,420 

7,280 

6,530 

4,870 

4,400 

5,030

Mean

5,258 

5,166 

4,552

12,210

4,119 

5,128 

7,014 

11 ,440 

32,890 

25,000 

6,371 

2,905 

6,769

9,719

Sept.

4,900 

4,600 

4,620 

4,500 

4,230

4,060 

3,830 

3,860 

4,140 

3,570

3,340 

3,030 

3,790 

5,090 

3,830

3,320 

3,920 

9,450 

8,930 

10,200

11,600 

11 ,000 

10,400 

12,400 

alO,400

a9 ,340 

8,520 

8,100 

9,510 

14,600

Run-off in 

acre-feet

323 ,300 

307,400 

279,900

8,839,000

255,100 

295,000 

431,200 

680 ,500 

2,022,100 

1,487,600 

391,700 

178 ,700 

402,800

7,055,000

a No gage-height record; discharge computed on basla of five discharge measurements and records 

for station near Grand Canyon.

b Stage-discharge relation affected by Ice.
18 COLORADO RIVER MAIN STEM

Colorado River at Bright Angel Creek, near Grand Canyon, Ariz.

Location.- Water-stage recorder, lat. 36°05'55", long. 112°05'30", at Kaibab Bridge, a

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

Grand Canyon Village, Coconlno County, and 267 miles upstream from Boulder Dam. 

Datum of gage is 2,418.7 feet above mean sea level (preliminary adjustment of 1929).

Drainage area.- 137,800 square miles (revised). 

Records available.- October 1922 to September 1940. 

Average discharge.- 18 years, 17,400 second-feet.

Extremes.- Maximum discharge during year, 46,800 second-feet May 18 (gage height, 17.66

 feet); minimum, 2,240 second-feet Aug. 21 (gage height, 0.84 foot). .... OQ 

1922-40: 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. During the year 137 discharge measurements were made.

 Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

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.

5,870 

5,750 

5,950 

5,820 

5,930

5,870 

5,830 

5,750 

5,650 

5,690

5,700 

5,870 

5,970 

6,330 

6,470

6,300 

6,500 

6,480 

6,190 

6,040

5,950 

5,870 

5,660 

5,440 

5,380

5,220 

5,080 

5,020 

4,980 

4,980 

4,840

HOT.

5,100 

5,470 

5,450 

5,340 

5,390

5,340 

5,310 

5,340 

5,470 

5,560

5,710 

5,900 

5,990 

6,060 

6,220

6,090 

6,020 

5,920 

5,710 

5,730

5,710 

5,690 

5,650 

5,540 

5,340

5,340 

5,190 

5,190 

5,240

5,260

Dec.

5,280 

5,320 

5,320 

5,310 

5,450

5,480 

5,360 

5,340 

5,300 

5,230

5,130 

5,150 

5,170 

5,170 

5,180

5,190 

5,220 

5,240 

5,140 

5,060

5,020 

4,890 

4,870 

4,840 

4,930

4,860 

4,570 

4,170 

4,160 

4,320 

4,340

Jan.

3,980 

3,610 

3,360 

3,430 

3,560

3,740 

4,220 

5,130 

5,350 

5,390

5,620 

5,820 

5,880 

6,360 

7,170

6,580 

6,010 

5,870 

5,580 

5,050

4,460 

4,000 

3,560 

2,870 

2,660

3,130 

3,440 

3,510 

3,870 

4,360 

4,670

Feb.

4,720 

5,000 

5,410 

5,800 

6,870

7,350 

7,400 

7,030 

6,750 

6,410

6,090 

5,750 

5,600 

5,520 

5,470

5,310 

5,320 

5,390

5,270 

5,150

5,120 

5,150 

5,180 

5,010 

4,880

4,980 

5,180 

5,390 

5,360

Month

dot 

HOT 

Dec

C

Jan 

Frt 

Mar 

Apr 

Ma, 

Jun 

Jul 

Aug 

Sep

1

uary

ater year 1939-4

Mar.

5,650 

7,820 

8,790 

8,610 

8,000

7,520 

6,990 

8,320 

9,000 

8,580

8,930 

8,520 

8,120 

7,920 

8,260

7,820 

7,460 

7,200 

6,990 

6,650

6,290 

6,270 

6,450 

6,500 

6,640

6,710 

6,940 

7,280 

8,020 

8,460 

9,050

Apr.

9,250 

10,200 

10,300 

9,800 

9,530

9,580 

9,870 

9,920 

9,210 

8,810

9,220 

9,240 

9,400 

9,130 

8,580

8,480 

8,520 

8,710 

9,300 

9,830

10,600 

10,900 

10,600 

11,200 

16,100

19,100 

19,600 

20,700 

21,500 

22,000

Seoondfoot-days

178,380 

167,270 

156,010

4,582,690

142,240 

163,860 

235,760 

349,180 

1,001,900 

765,700 

218,240 

128,540 

241,490

3,748,570

May

23,100 

22,900 

22,900 

21,400 

20,000

18,900 

19,100 

22,800 

26,300 

27,200

31,400 

31,800 

32,900 

36,700 

34,400

42,100 

44,400 

45,500 

44,400 

44,600

43,900 

40,600 

37,800 

36,900 

34,800

33,300 

32,100 

31,700 

32,100 

32,800 

33,100

Maximum

6,500 

6,220 

5,480

48,100

7,170 

7,400 

9,050 

22,000 

45,500 

41,600 

12,500 

9,230 

14,200

45,500

June

34,500 

34,500 

36,500 

39,500 

41,600

41,200 

39,900 

37,400 

34,600 

32,200

30,700 

28,400 

25,900 

23,300 

21,600

20,400 

19,900 

20,200 

20,700 

20,400

19,100 

18,800 

18,000 

16,900 

16,200

15,700 

15,400 

14,700 

14,100 

13,400

July

12,500 

11,600 

11,200 

12,000 

10,500

9,610 

9,430 

8,660 

7,980 

7,580

7,380 

7,060 

6,620 

6,240 

6,080

5,800 

5,500 

5,190 

4,840 

4,660

4,920 

5,470 

6,120 

4,980 

4,480

4,430 

4,660 

7,070 

5,740 

4,600 

5,340

MJ.p'tTffi^m

4,840 

5,100 

4,160

2,790

2,660 

4,720 

5,650 

8,480 

18,900 

13,400 

4,430 

2,320 

3,680

2,320

Aug.

6,440 

5,320 

4,260 

3,630 

3,310

3,130 

2,980 

2,850 

2,740 

2,600

2,460 

2,390 

2,320

2,350 

2,570

3,220 

5,060 

3,330 

2,990 

2,570

2,410 

2,380 

3,100 

4,940 

7,890

6,990 

7,730 

9,230 

7,130 

5,390 

4,830

Mean

5,764 

5,5V6 

5,033

12,560

4,588 

5,650 

7,605 

11,6*0 

32,320 

25,520 

7,010 

4,146 

8,050

10,240

Sept.

5,430 

5,260 

5,530 

5,480 

5,430

5,210 

6,030 

5,020 

4,400 

4,60O

4,110 

3,760 

3,680 

7,270 

8,980

6,200 

5,530 

8,690 

11, 300 

11,400

12,700 

 13,200 

13,300 

14,200 

14,100

11,200 

9,650 

9,030 

8,900 

11,900

Run- off in 

aore-feet

353,800 

331,800 

309,400

9,090,000

28E.100 

325,000 

467,600 

692,600 

1,987,200 

1,518,700 

432,900 

255,000 

479,000

7,435,000
COLORADO RIVER MAIN STEM 19

Lake Mead at Boulder Dam, Ariz.-Nev.

Location.- Water-stage indicator, lat. 36 0 00'59", long. 114°44 1 10", in SWi sec. 3, T.

 30 N., R. 23 W., Gila and Salt River meridian, on State line, in center of Boulder 

Dam on Colorado River. Datum of gage is at mean sea level (general adjustment of 

1912, subject to correction), or 0.38 foot above mean sea level (general adjustment 

of 1929, subject to correction). Elevations given herein are referred to general adjustment of 1912.

Drainage area.- 167,800 square miles (revised).

Records available.- February 1935 to September 1940.

Extremes.- Maximum contents during year, 22,188,000 acre-feet July 1 to e (elevation,

 1,182,2 feet); minimum, 19,825,000 acre-feet Apr. 4, 5, 20 (elevation, 1,164.2 feet).

1935-40: Maximum contents, 22,359,000 acre-feet (revised) June 29 to July 4, 1939 

(elevation, 1,183.45 feet).

Revisions: The figures of maximum and minimum contents for the period of record 

have been revised, as shown in the following table, based on survey completed In 1940. 

Figures previously published are of total contents; revised figures are of usable 

contents and supersede those published In the water-supply papers indicated.

Water 

Supply 

Paper

789

809 

829 

859 

879

Water 

year

1935

1935-36 

1936-37 

1937-38 

1938-39

Maximum

Date

July 30 to 

Aug. 2 

Sept. 10 

July 28 

Sept .24-27 

June 29 to 

"July 4

Elevation 

(feet)

928.45

1,025.85 

1,102.9 

1,173.9 

1,183.45

Contents 

(acre-feet)

 1,242,000

6,500,000 

12,946,000 

21,078,000 

22,359,000

Minimum

Date

Apr. 14 

Feb. 5 

Feb. 13- 18 

Mar. 17-23

Elevation 

(feet)

905.2 

1,021.9 

1,094.65 

1,156.1

Contents 

(acre-feet)

 351,000 

6,230,000 

12,143,000 

18,815,000

 Prior to the final closing of outlet tunnel No. 1 on May 1, 1936, the storage below 

elevation 895.0 feet was also available for release but Is not included in figures shown.

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 (revised) below elevation 895.0 

feet (gate sills in outlet towers), usable contents, 27,935,000 acre-feet (revised) 

between elevations 895.0 feet and 1,221.4 feet (top of automatic spillway gates in 

raised position), and uncontrolled storage, 1,217,000 acre-feet between elevations 

1,221.4 feet and 1,229.0 feet. Reservoir is used to store water for irrigation, 

municipal supply, and power development, and for flood control. Figures given herein 

represent usable contents. Records computed on basis of Pacific standard time.

Cooperation.- Records collected and prepared In cooperation with Bureau of Reclamation.

Revisions.- Revised figures of monthly contents for the water years 1935-39, superseding

 those published in Water-Supply Papers 789, 809, 829, 859, and 879, are given herein. 

Figures previously published are of total contents; revised figures are of usable 

contents based on survey completed in 1940.

Capacity table (elevation, in feet, and usable contents, in thousands of sore-feet)

(Complied by Bureau of Reclamation from computations made In 1940 by the Soil Conservation

Service, and supersedes table made in 1935 from preliminary surveys)

895 

92C

0 

9C4

950

990

2,183

4,242

1,030

1,070

1,110

1,150

13,660

18,077

1,190

1,229

23,265

29,152

Elevation at 7 a.m., In feet, water year October 1939 to September 1940

D«y

1

2

S

4

S

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

OA At

25

26

27

28

29

SO

31

Oct.

178.9

178.8

178.7

178.6

178.5

178.35

178.2

178.15

178.05

178.0

177.9

177.8

177.75

177.65

177.6

177.55

177.45

177.35

177.3

177.2

177.1

177.05

176.95

176.85

176.7

176.6

176.5

176.4

176.3

176.2

176.1

Nov.

176.0

175.9

175.75

175.65

175.55

175.5

175.4

175.3

175.2

175.1

174.95

174.9

174.8

174.7

174.6

174.45

174.35

174.25

174.15

174.05

173.95

173.8

173.7

173.65

173.55

173.45

173.4

173.3

173.2

173.05

Dec.

172.95

172.85

172.75

172.65

172.55

172.45

172.35

172.25

172.2

172.1

172.0

171.95

171.8

171.65

171.55

171.45

171.35

171.3

171.15

171.1

170.95

170.85

170.75

170.65

170.6

170.45

170.4

170.3

170.15

170.05

169.95

Jan.

169.8

169.7

169.6

169.5

169.35

169.2

169.05

169.0

168.85

168.75

168.65

168.6

168.5

168.45

168.4

168.3

168.25

168.15

168.05

167.95

167.85

167.8

167.65

167.55

167.45

167.3

167.2

167.15

167.1

167.0

166.9

Feb.

166.9

166.85

166.8

166.75

166.75

166.75

166.75

166.75

166.7

166.7

166.7

166.65

166.6

166.55

166.5

166.45

166.4

166.4

166.35

166.35

166.3

166.25

166.2

166.15

166.1

166.15

166.1

166.1

166.0

-

Mar.

166.0

166.0

166.0

166.0

166.0

166.0

166. C

166.0

166.0

166.0

165.95

165.9

165.95

3.65.95

165.9

165.85

165.8

165.75

165.65

165.6

165.55

165.45

165.35

165.25

165.15

165.05

164.95

164.95

164.85

164.75

164.65

Apr.

164.55

164.45

164.4

164.2

164.2

164.25

164.3

164.35

164.4

164.45

164.45

164.45

164.45

164.4

164.35

164.35

164.3

164.3

164.25

164.2

164.25

164.25

164.25

164.25

164.25

164.25

164.35

164.55

164.65

164.85

-

May

165.05

165.25

165.4

165.6

165.8

165.95

166.1

166.25

166.4

166.6

166.85

167.15

167.5

167.8

168.2

168.6

169.0

169.6

170.1

170.6

171.2

171.7

172.2

172.7

173.2

173.6

174.0

174.4

174.7

175.0

175.35

June

175.7

176.1

176.5

176.9

177.3

177.8

178.3

178.7

179.0

, 179.4

179.6

180.0

180.3

180.5

180.7

180.8

181.0

181.1

181.3

181.4

181.5

181.6

181.7

181.8

181.9

182.0

182.0

182.1

182.1

182.15

-

Juir

182,2

182,2

182,2

1S2,2

1£2,2

182,2

1S2.1

182.1

182,0

182.0

181.9

181.8

181.7

181.6

181.6

181.4

181.3

181.2

181.1

180-9

180.8

180-7

180-6

180-5

180-4

180-3

180-2

180-1

180-0

179.9

179.8

Aug.

179.7

179.6

179.5

179.4

179.3

179.1

179.0

178.9

178.7

178.6

178.5

178.3

178.1

178.0

177.8

177.6

177.5

177.4

177.3

177.2

177.1

177.0

176.8

176.6

176.5

176.4

176.3

176.2

176.15

176.1

176.1

Sept.

176.0

175.9

175.8

175.7

175.6

175.5

175.4

175.3

175.4

175.3

175.2

175.1

175.0

174.8

174.7

174.6

174.55

174.5

174.55

174.5

174.45

174.45

174.5

174.5

174.5

174.5

174.45

174.45

174.4

174.4

~

Note.- Add 1,000.00 feet to obtain elevations above mean sea level.
20 COLORADO RIVER MAIN STEM

Contents at 7 a.m. in thousands of acre-feet, of Lake Mead at Boulder Dam, Ariz.-Hev. water 

year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

21,743

21,729

21,716

21,702

21,689

21,669

21,649

21,642

21,628

21,622

21,609

21,595

21,588

21,576

21,569

21,562

21,549

21,536

21,529

21,516

21,502

21,496

21,482

21,469

21,449

21,436

21,422

21,409

21,396

21,383

21,369

Nov.

21,356

21,343

21,322

21,310

21,296

21,290

21,276

21,263

21,250

21,236

21,216

21,210

21,197

21,183

21,170

21,150

21,138

21,124

21.110

21,098

21,084

21,065

21,052

21,046

21,032

21,019

21,012

20,999

20,986

20,967

-

Dec.

20,954

20,940

20,928

20,914

20,901

20,888

20.874

20,862

20,855

20,842

20,829

20,822

20,803

20,784

20,770

20,758

20,744

20,738

20,718

20,712

20,692

20,680

20,666

20,654

20,647

20,628

20,621

20,608

20,588

20,576

20,562

Jan.

20,543

20,530

20,517

20,504

20,484

20,465

20,446

20,439

20,420

20,407

20,394

20,388

20,375

20,368

20,362

20,349

20,343

20,330

20,318

20,304

20,292

20,285

20,266

20,252

20,240

20,221

20,208

20,202

20,195

20,182

20,169

Feb.

20,169

20,162

20,156

20,150

20,150

20,150

20,150

20,150

20,144

20,144

20,144

20,138

20,131

20,124

20,118

20,112

20,105

20,105

20,098

20,098

20,092

20,086

20,080

20,074

20,067

20,074

20,067

v20,067

20,054

_

-

Mar.

20,054

20,054

20,054

20,054

20,054

20,054

20,054

20,054

20,054

20,054

20,048

20,041

20,048

20,048

20,041

20,035

20,029

20,022

20,010

20,003

19,996

19,984

19,972

19,958

19,946

19,934

19,920

19,920

19,908

19,896

19,882

Apr.

19,870

19,858

19,851

19,825

19,825

19,832

19,838

19,844

19,851

19,858

19,858

19,858

19,858

19,851

19,844

19,844

19,838

19,838

19,832

19,825

19,832

19,832

19,832

19,832

19,832

19,832

19,844

19,870

19,882

19,908

May

19,934

19,958

19,978

20,003

20,029

20,048

20,067

20,086

20,105

20,131

20,162

20,202

20,246

20,285

20,337

20,388

20,439

20,517

20,582

20,647

20,725

20,790

20,855

20,921

20,986

21,039

21,091

21,144

21,183

21,223

21,270

June

21,316

21,369

21,422

21,476

21,529

21,595

21,662

21,716

21,756

21,810

21,837

21,891

21,932

21,958

21,986

21 999

22^026

22,040

22,066

22,080

22,094

22,107

22,120

22,134

22,148

22,161

22,161

22,175

22,175

22,182

July

22,188

22,188

22,188

22,188

22,188

22,188

22,175

22,175

22,161

22,161

22,148

22,134

22,120

22,107

22,107

22,080

22,066

22,053

22,040

22,012

21,999

21,986

21,972

21,958

21,945

21,932

21,918

21,904

21,891

21,878

21,864

Av«.

21,850

21,837

21.824

21,810

21,796

21,770

21,756

21,743

21,716

21,702

21,689

21,662

21,635

21,622

21,595

21,569

21,556

21,542

21,529

21,516

21,502

21,489

21,462

21,436

21,422

21,409

21,396

21,383

21,376

21,369

21,369

Sept.

21,356

21,343

21,329

21,316

21,303

21,290

21,276

21,263

21,276

21,263

21,250

21,236

21,223

21,197

21,183

21,170

21, 16<1

21,157

21,164

21,157

21,150

21,150

21,157

21,157

21,157

21,157

21,150

21,150

21,144

21,144

Monthly elevation and contents, 1935-40

Date

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

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

Peb 29

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

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

Elevation 

(feet)

752 4

909 1

920.75

914 9

908.4

907 9

922 25

1 024 45

1,024.6

1,023.5

1,097.65

Contents 

(acre-feet)

»4, 140,000

*3, 673,000

6,414,000

6,339,000

12,432,000

Change in contents 

during month 

(acre-feet)

+657,000

-103,000

-206,000

-226,000

-245,000

44,000

+581,000

+272,000

+10,000

-3,000

-85,000

+339,000

+990,000

+1,658,000

+611,uOO

-319,000

-185,000

*Wior to the final closing of outlet tunnel Ho. 1 on May 1, 1936, the storage 

below elevation 895.0 feet was also available for release and is included in 

figures shown.
COLORADO RIVER MAIN STEM 21

Monthly elevation and contents, of Lake Mead at Boulder Dam, Ariz.-Nev., 

1935-40--Continued

Date

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

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

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

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

Water vear 1939-40. ......

Elevation 

(feet)

1,096.7 

1,096.0 

1,095.75

-

1,095.0 

1,094.85 

1,100.2 

1,109.2 

1,134.3 

1,165.6 

1,173.5 

1,171.95 

1,173.8

-

1,171.45 

1,168.7 

1,168.65

-

1,165.4 

1,157.4 

1,158.2 

1,162.9 

1,176.2 

1,183.45 

1,181.3 

1,177.35 

1,178.95

-

1,176.1 

1,173.05 

1,169.95

-

1,166.9 

1,166.0 

1,164.65 

1,164.85 

1,175.35 

1,182.15 

1,179.8 

1,176.1 

1,174.4

_

Contents 

(acre-feet)

12,340,000 

12,272,000 

12,248,000

-

12,176,000 

12,162,000 

12,681,000 

13,578,000 

16,262,000 

20,003,000 

21,026,000 

20,822,000 

21,065,000

-

20,758,000 

20,401,000 

20,394,000

-

19,978,000 

18,975,000 

19,074,000 

19,661,000 

21,383,000 

22,359,000 

22,067,000 

21,536,000 

21,749,000

-

21,369,000 

20,967,000 

20,562,000

-

20,169,000 

20,054,000 

19,882,000 

19,908,000 

21,270,000 

22,182,000 

21,864,000 

21,369,000 

21,144,000

_

Change in contents 

during month 

(acre-feet)

-92, COO 

-68, COO 

-24, COO

+5, 909, COO

-72, COO 

-14,000 

+519,000 

+897,000 

+2,684,000 

+3,741,000 

+1,023,000 

-204,000 

+243,000

+8,633,000

-307,000 

-357,000 

-7,000

+8,146,000

-416,000 

-1,003,000 

+99,000 

+587,000 

+1,722,000 

+976,000 

-292,000 

-531,000 

+213,000

+684,000

-380,000 

-402,000 

-405,000

+168,000

-393,000 

-115,000 

-172,000 

+26,000 

+1,362,000 

+912,000 

-318,000 

-495,000 

-225,000

-605.000
22 COLORADO RIVER MAIN STEM

Colorado River below Boulder Dam, Ariz.-Nev.

Location.- Water-stage recorder, lat. 36°00'15n , long. 114°44'35", in SWiNEi sac. 10, 

 T. 30' N., R. 23 W., Gila and Salt River meridian, or NWiNEi sec. 32, T. 22 S., R. 

65 E., Mount Diablo meridian, 1 mile downstream from Boulder Dam and 11 miles upstream from Willow Beach. Datum of gage is 599.75 feet above mean sea level (general 

adjustment of 1912, subject to correction), used locally as 600.00 feet as originally 

determined. Prior to Nov. 1, 1939, water-stage recorder at site 9 miles downstream 

at different datum.

Drainage area.- 167,800 square miles (revised) at Boulder Dam; 168,400 at former site 

near willow Beach (revised to include 540 square miles in noncontributing area between 

Searchlight and Boulder City, Nev.).

Records available.- April 1934 to September 1940. April 1934 to November 1939, collected 

at site 9 miles downstream (published as Colorado River near Willow Beach, Ariz.).

Extremes.- Maximum discharge during year, 22,900 second-feet Sept. 28 (gage height, 47.6 

feet); minimum, 2,920 second-feet Feb. 6 (gage height, 38.15 feet); minimum daily, 

5,090 second-feet June 2.

1935-40 (regulated): Maximum discharge, 51,200 second-feet Feb. 13, 1939 (gage 

height 54.96 feet, present site and datum); no flow Feb. 10, 1935 at present site.

Remarks.- Records excellent. Records Oct. 1-31 collected at former site near Willow 

Beach. Diversions above Boulder Dam for irrigation. Discharge completely regulated 

at Boulder Dam since Feb. 1, 1935. Records computed on basis of pacific standard 

time. During the year 209 discharge measurements were made.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9,000 

10,900 

12,200 

12,200 

12,000

12,000 

11,400 

9,920 

10,9OO 

10,500

10,700 

10,800 

10,700 

10,300 

9,330

11,000 

11 , 700 

11,900 

11,700 

11,600

11,000 

9,710 

11,300 

11,700 

11,400

11,200 

11,100 

10,500 

9,500 

11,100 

11,600

HOT.

12,100 

12,400 

12,200 

11,200 

9,600

12,100 

11,700 

12 , 600 

13,100 

13,300

10,800 

3,800 

11,800 

13,500 

13,600

13,600 

13,800 

12,300 

10,400 

13,400

13,700 

13,200 

10,300 

10,500 

10,400

9,360 

11,400 

12,400 

12,600 

12,200

Dec.

12,100 

11,500 

10,300 

12,500 

12,600

11,900 

11,600 

11,600 

11,000 

9,580

11,600 

12,000 

12,200 

12,100 

11,900

11,500 

10,500 

12,200 

11,900 

11,700

11,700 

11,800 

11,400 

9,390 

9,250

11,100 

11,900 

12,000 

11,600 

11,000 

10,200

Jan.

10,500 

12,700 

12,700 

13,500 

12,900

12,000 

10,300 

12,000 

12,000 

12,000

11,500 

10,900 

10,400 

9,570 

11,800

11,900 

12,800 

12,100 

12,000 

11,100

9,080 

11,700 

11,900 

11,800 

11,900

10,900 

8,620 

6,060 

3,900 

9,110 

9,080

Feb.

9,460 

8,610 

9,370 

5,670 

7,650

7,660 

8,590 

8,310 

3,330 

8,030

7,970 

3,620 

8,550 

9,400 

8,140

7,880 

7,100 

6,210 

8,530 

8,300

8,430 

8,220 

8,350 

7,220 

6,560

9,650 

8,080 

7,920 

7,450

Month

Dot 

Hoy 

Dec

0

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jill 

Aug 

Sep

«

alendar year 1939......................

11.....................................

ater year 1939-4

Mar.

6,870 

6,320 

5,490 

7,840 

8,800

8,170 

8,4OO 

7,890 

8,970 

9,090

8,430 

8,800 

8,830 

10,000 

10,700

10,700 

10,600 

10,800 

12,100 

12,100

12,100 

12,200 

12,200 

12,300 

12,300

12,500 

12,100 

12,100 

12,000 

13,200 

16,000

Apr.

16,000 

13,000 

17,900 

14,300 

8,000

6,930 

5,920

7,840 

3,060 

7,930

7,940 

7,780 

11,200 

11,200 

11,100

11,000 

11,100 

9,910 

9,730 

9,620

9,570 

10,300 

10,200 

10,100 

10,400

10,400 

10,300 

10,400 

10,400 

10,300

Secondfoot-days

340,860 

358,360 

354,120

4,358,480

343,720 

234,310 

319,900 

313,830 

290,030 

293,570 

339,320 

340,720 

350,510

3,879,250

May

10,300 

10,300 

10,300 

10, 300 

10,400

10,400 

10,200 

10,300 

10,200 

10,300

10,200 

10,400 

10,300 

10,400 

10,500

10,300 

10,300 

10,300 

10,400 

10,100

8,340 

8,240 

8,090 

7,990 

6,360

5,260 

8,450 

8,630 

8,260 

6,440 

7,770

Maximum

12,200 

13,800 

12,600

32,000

13, 500 

9,650 

16,000 

18,000 

10,500 

12,200 

13,000 

12,200 

13,400

18,000

June

6,300 

5,090 

7,620 

8,310 

7,760

7,960 

12,200 

12,200 

12,200 

11,700

11,300 

10,100 

9,470 

9,890 

9,620

9,850 

9,650 

9,830 

9,650 

9,680

9,570 

9,650 

9,670 

9} 730 

9,770

10,800 

11,000 

11,000 

10,900 

11,100

July

11,000 

10,800 

10,800 

10,900 

10,800

10,700 

10,700 

11,300 

11,900 

11,100

11,200 

11,400 

11,200 

11,100 

11,200

11,400 

11,400 

13,000 

12,500 

11,300

11,000 

10,600 

11,100 

11,500 

10,300

10,200 

8,450 

9,050 

9,820 

10, 600 

11,000

y^p-liyryipi

9,000 

8,800 

9,250

4,440

6,060 

5,670 

5,490 

5,920 

5,260 

5,090 

8,450 

6,690 

7,260

5,090

*!«.

11,100 

11,100 

10,800 

10,800 

11,200

11,500 

11,600 

11,500 

11,500 

10,600

10,900 

12,000 

12,000 

12,200 

11,300

11,100 

9,730 

6,690 

11,300 

11,600

10,600 

11,000 

11,100 

10,800 

11,000

11,000 

11,000 

1C, 800 

11,100 

11,000 

10,800

Mean

11,000 

11,950 

11,420

11,940

11,090 

8,080 

10,320 

10,460 

9,356 

9,781 

10,950 

10,990 

11,680

10,600

Sept.

10,900 

9,860 

10,200 

10,600 

11,200

11,500 

10,000 

8,990 

11,5OO 

12,000

11,700 

12,900 

13,OOO 

12,OOO 

10,5OO

12,400 

13,000 

12,900 

13,000 

12,900

11.9OO 

10,300 

12,700 

13,100 

13,4OO

13,300 

13,200 

12,100 

7,260 

12,200

Run-off in 

acre-feet

676,100 

710,800 

702,400

8,645,000

681,800 

464,700 

634,500 

622,500 

575,300 

582,300 

673,000 

675,800 

695,200

7,694,000
COLORADO RIVER MAIN STEM 

Colorado River at Needles, Calif.

Location.-Water-stage recorder, lat. 34°50'5011 , long. 114°36'15", In NWi sec. 29, 

T. 9 N., R. 23 E., San Bernardino meridian, at Needles, Calif., 18 miles upstream 

from gaging station near Topock, Arlz., 57.5 miles upstream from Parker Dam, and 

98 miles downstream from Boulder Dam. Datum of gage Is 466.23 feet (general adjustment of 1929) or 466.39 feet (general adjustment of 1912) above mean sea level; gage 

readings have been reduced to elevation above mean sea level (general adjustment of

Drainage area.- 170,600 square miles.

Records available.- April 1931 to September 1940 (elevations only).

Extremes.- Maximum elevation during year, 470.07 feet Apr. 5; minimum, 466.88 feet

1931-40: Maximum elevation, 472.10 feet June 25, 1933: minimum, 466.53 feet 

Oct. 2, 1934.

Remarks.- Records good. Flow completely regulated by Lake Mead above Boulder Dam.

Elevation, in feet, water year 1939-40

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

468.68

468.43

468.75

469.06

469.19

469.23

469.22

469.13

468.91

468.95

468.83

468.79

468.77

468.74

468 .67

468.48

468.68

468.82

46S.84

468.76

468.68

468.61

468.53

468.73

468.87

468.81

468.77

468.75

468.70

468.49

468.67

Nov.

468.76

468.78

468.85

468. S9

468.77

468.58

468. 7S

468.85

468. 92

468.94

468.95

46S.70

468.33

468.70

469.02

469.09

469.11

469.24

469.08

468.73

469.25

469.39

469.30

468.90

468.76

468.78

468.62

468.93

469.06

469.06

-

Dec.

468.99

468.95

46S.85

46S.60

46S.94

469. OS

468.85

468.81

468. 7S

468.69

468.46

468.79

468.92

468.95

468.93

468.91

468.79

468.60

468. S3

468.86

468.86

468. S3

468.83

468.81

468.55

468.37

468.59

468.76

468. 7S

468.71

468.64

Jan.

468.51

468.58

46S.87

468.95

469. IS

469.09

46S.85

468.49

468.75

468. S6

468.84

468.79

46S.77

468.59

468.43

468.71

46S.80

468.91

468.78

468.77

468.56

468.22

468.55

468.74

468.77

468.83

468.70

468.51

468.04

46S.41

46S.68

Feb.

468.73

468.74

468.51

468.50

468.06

46S.05

46S.09

468.39

468.33

468.37

468. 28

46S.24

468.38

468.36

468.54

468.48

468.35

468.16

467.93

468.05

468.39

468.40

468.35

468.38

46S.33

467.94

46S.34

468. 21

468.10

_

-

Mar.

467.94

467.66

467.49

467.19

467.39

468.37

468.18

468.34

468.37

468.39

468.69

468.43

46S.44

468.47

468.60

468. S7

469.06

468. S8

468.81

469.13

469.08

469.24

469.25

469.32

469.18

469.13

469. 29

469.19

469. S3

469.27

469.34

Apr.

469.78

469.74

469. S

470.0

469. S

469.1

469.0

468.6

468.3

468.5

468.6

468.5

468.4

468.9

469.2

469.2

469.06

469.06

468. 9S

468.80

468.80

468.80

468.76

468.91

46S.90

468.95

468.98

468 . 98

469.00

469.02

May

469.06

469.04

468.97

469. OS

469.11

469.03

469.09

469.03

469.10

469.07

469.04

469.13

469.11

469.08

469.04

469.04

469.06

469.06

469.12

469.02

468.96

468.54

46S.54

468.50

46S.49

468.25

467. S8

468.13

468.62

468.53

468.24

June

468.16

468.18

467.83

467.85

468.40

468.38

468.32

469.04

469.46

469.33

469.13

469.17

468.85

46S.69

468.95

468.78

468.71

46S.83

468.81

468.71

468.67

468.67

468.75

46S.70

468.71

468.72

468.83

469.12

469.03

469.02

Jul."

469.10

469.10

469.16

469.11

469.22

469.14

469.18

469 . 07

469.35

469.33

469.13

469.02

469.36

469.33

469.32

469.22

469.38

469.32

469 . 63

469.80

469.63

469.50

469.45

469.46

469.57

469.48

469.35

469.26

468. 9S

469.33

469.48

Aug.

469. 5S

469.44

469.36

469.39

469.49

469.47

469.55

469.53

469.51

469.58

469.35

469.49

469.56

469.76

469. S4

469.69

469.59

469.43

468.97

469.33

469.64

469.46

469.38

469.35

469.32

469.43

468.99

469.22

469.14

469.20

469.26

Sept.

469.32

469.39

469.34

468.79

469.22

469.33

469.37

469.06

468.99

469.16

469.50

469.39

469.59

469.75

469.59

469.32

469.50

469.64

469.62

469.63

469.58

469.43

469.17

469.52

469.71

469.75

469.70

469.73

469.69

468.90

-

Hote.- No gage-height record Apr. 

comparison with records at Willow E

3-16; elevations determined from recorded range in stage and 

sacli and near Topock, Arlz.
24 COLORADO RIVER MAIN STEM

Colorado River near Topock, Arlz.

Location.- Water-stage recorder, lat. 34°41'15", long. 114 0 27'45', In NWi sec. 13, T. 

15 N., R. 21 W., Glla and Salt River meridian, In Mohave Canyon, 3 miles downstream 

from Topock, 40 miles upstream from Parker Dam, and 116 miles downstream from Boulder 

Dam. Datum of gage is 423.02 feet (generaradjustment of 1929) or 423.08 feet (generaJ 

adjustment of 1912) above mean sea level. Auxiliary water-stage recorder, used In 

determining fall, lat. 34°42'55", long. 114°29'10 11 , In NEi sec. 3, T. 15 N., R. ?.I W., 

at highway bridge at Topock, 2.7 miles upstream.

Drainage area.- 172,300 square miles (revised). 

Records available.- February 1917 to September 1940.

Extremes.- Maximum discharge during year, 17,500 second-feet Apr. 5 (gage height, 24.68 

feet); minimum, 4,720 second-feet May 28; minimum dally, 4,980 second-feet May 28, 

minimum gage height, 21.03 feet Mar. 5.

1917-34 (unregulated): Maximum discharge, 174,000 second-feet June 22, 1921: 

minimum 1,480 second-feet Aug. 17, 1934.

1935-40 (regulated): Maximum discharge, 34,900 second-feet Feb. 2, 1939; minimum, 

375 second-feet Feb. 14, 1935; minimum dally, 422 second-feet Feb. 14, 1935.

Remarks.- Records good. Records computed on basis of mountain standard time. Discharge 

computed by using fall as determined by auxiliary water-stage recorder as a factor. 

Diversions above station for Irrigation. Flow regulated at Boulder Dam; no regulation between Boulder Dam and this station. Elevations given In the following table 

are In agreement with general adjustment of 1929.

Elevation, in feet, water year October 1939 to September 1940

D«y

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

2829

30

31

Oct.

446.25

445.75

445.28

445.46

445.71

445.72

445.71

445.78

445.59

445.29

445.35

445.31

445.28

445.28

445.30

445.15

444.90

445.27

445.53

445.62

445.67

445.67

445.50

445.36

445.61

445.77

445.79

445.76

445.71

445.46

445.28

Nov.

445.55

445.82

445.99

446.14

446.14

445.92

445.66

445.89

446.12

446.26

446.46

446.46

445.89

445.68

446.03

446.31

446.42

446.54

446.59

446.33

446.18

446.50

446.74

446.62

446.08

445.94

445.75

445.59

445.85

446.08

-

Dee.

446.30

446.32

446.28

446 . 07

445.87

446.12

446.30

446.28

446.25

446.18

445.95

445.71

446.04

446.20

446.23

446.23

446.24

446.14

446.02

446.08

446.13

446.17

446.21

446.15

445.92

445.78

445.64

445.83

446.09

446.20

446.20

Jan.

446.17

446.10

446.14

446.40

446.67

446.81

446.78

446.61

446.40

446.50

446.56

446.57

446.41

446.26

446.01

445.82

446.02

446.22

446.35

446.45

446.37

446.16

445.86

446.02

446.15

446.26

446.26

446.12

445.37

444.68

445.14

Feb.

445.29

445.51

445.45

445.25

445.16

444.44

444.59

444.62

444.87

444.87

444.84

444.76

444.98

445.12

445.20

445.25

445.13

445.03

444.75

444.51

444.92

445.07

445.17

445.14

445.22

445.02

444.82

445.29

445.25

-

Mar.

445.14

445.03

444.75

444.50

444.14

444.66

445.07

445.02

445.10

445.02

445.13

445.11

445.04

445.11

445.16

445.30

445.35

445.22

445.10

445.21

445.43

445.52

445.60

445.71

445.82

445.87

445.96

446.05

446.08

446.19

446.32

Apr.

446.67

446.93

446.97

447.30

447.60

447.00

446.69

446.31

445.83

445.89

445.94

445.84

445.76

445.84

445.99

446.01

445.96

445.99

446.04

445.87

445.91

445 . 94

445.98

446.07

446.09

446.11

446.12

446.13

446.13

446.17

-

May

446.18

446.16

446.12

446.14

446.16

446.13

446.15

446.17

446.15

446.22

446.16

446.16

446.21

446.24

446.25

446.28

446.31

446.27

446.30

446.37

446.48

446.32

446.12

446.07

446.08

446.11

445.78

445.48

446.02

446.20

446.20

June

445.76

445.78

445.50

444.95

445.23

445.55

445.56

445.58

446.09

446 . 02

445.97

445.94

445.90

445.80

445.93

446.03

445.92

445.90

445.95

446.02

446.00

446.00

445.93

445.99

445.98

445.86

445.87

446.06

446.03

445.88

-

July

445.79

445.74

445.74

445.69

445.63

445.65

445.63

445.62

445.61

445.77

445.77

445.65

445.67

445.67

445.56

445.51

445.58

445.63

445.60

445.76

445.86

445.74

445.71

445.61

445.64

445.69

445.64

445.64

445.35

445.33

445.62

Aug.

445.77

445.82

445.84

445.83

445.76

445.72

445.72

445.71

445.72

445.71

445.71

445.76

445.72

445.84

445.91

445.91

445.78

445.71

445.48

445.05

445.60

445.73

445.58

445.50

4*5.42

445=41

445.27

445.26

445.33

445.38

445.43

Sept.

445.47

445.54

445.64

445.42

445.47

445.63

445.75

445.73

445.65

445.44

445.71

445.87

445.93

445.96

446.01

445.91

445.87

446.02

446.10

446.07

446.14

446.11

446.02

445.87

446.00

446.13

446.20

446.23

446.18

445.89

~
COLORADO RIVER MAIN STEM 25

Discharge, In aecond-feet, of Colorado River near Topock, Arlz., water year October 1939 to

September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

10,600

9,500

9,350

10,600

11,300

11,200

11,100

11,200

10,500

9,700

10,100

10,000

10,100

10,400

10,400

9,790

9,200

10,800

11,400

11,400

11,400

11,200

10,200

9,820

10.700

11,100

11,000

10,700

10,400

9,530

9,310

Hov.

10,300

11,000

11,600

12,100

12,000

10,800

10,200

11,000

11,800

12,300

12,700

12,500

10,300

10,000

10,800

012,500

013,000

013,100

13,200

12,000

11,700

12,700

13,000

12,200

10,500

10,500

9,830

9,420

10,700

11,300

-

Dec.

12,100

11,900

11,600

11,000

10,800

11.800

12,000

11,700

11,500

11,300

10,400

9,830

11,200

11,500

11,700

11,700

11,600

11,100

10,500

11,200

11,500

11,500

11,500

11,400

10,700

9,730

9,350

10,400

11,200

11,400

11, 300

Jan.

10,900

10,700

10,900

11,900

12,500

12,600

12,300

11,700

11,200

11,600

11,900

12,000

11,400

11,000

10,600

10,300

11,500

12,000

12,500

12,000

11,500

10,500

10,100

10,900

11,200

11,500

11,400

11,000

8,760

7,020

8,770

Feb.

C9,000

C9.000

C9.000

c9,000

8,940

6,470

7,060

7,320

8,220

8,150

8,010

7,750

8,120

8,920

9,000

9,2EO

8,720

8,390

7,410

6,560

7,870

8,140

8,280

8,180

8,260

7,500

7,110

8,680

8,420

-

-

Month

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

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

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

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

Water year 1939-40......................

Mar.

8,230

7,950

7,240

6,560

5,500

7,480

8,420

8,350

8,670

8,470

9,050

8,550

8,240

8,400

8,580

9,250

9,940

9,880

9,880

10,400

11,300

11,200

11, 600

11,900

12,000

12,000

12,000

12,000

12,000

12,000

12,500

Apr.

14,400

15,500

15,800

16,800

17,200

12,500

9,000

7,500

7,000

8,000

8,000

8,000

8,000

8,000

10,500

11,000

10,800

10,500

10,500

9,470

9,330

9,430

9,410

9,740

9,710

9,880

9,970

9,970

9,820

9,870

-

Secondfoot-days

324,000

345,050

346,410

4,191,560

344,150

236,730

299,540

315,600

280, 650

272,360

323,190

330,250

343,260

3,761,190

May

9,960

9,830

9,630

9,880

9,880

9,720

9,810

9,830

9,760

9,930

9,580

9,780

9,860

9,980

9,810

9,830

9,850

9,790

10,000

10,100

9,930

9,050

8,110

7,800

7,650

7,410

6,050

4,980

7,160

7,940

7,760

Ma-^tmini

11,400

13,200

12,100

31,100

12,600

9,250

12,500

17,200

10,100

11,500

11,500

11,700

12,800

17,200

June

6,530

7,070

6,470

5,190

6,700

8.080

8,160

8,490

11,500

11,200

11,200

11,100

10,000

9,340

9,340

9,640

9,240

8,900

9,050

9,180

9,120

9,260

9,130

9,380

9,420

9,130

9,240

10,400

10,600

10,300

-

Jul^-

10,300

10,500

10,500

10,400

10,800

10,400

10,800

10,100

10,300

10,800

11,100

10,700

11,100

10,900

10,700

10,500

10,600

10,700

10,600

11,100

11,500

11,200

10,700

10,100

10,300

10 ; 400

10,200

10,800

9,850

8,880

9,360

Minimum

9,200

9,420

9,350

4,760

7,020

6,470

5,500

7,000

4,980

5,190

8,280

8,540

9,640

4,980

Aug.

9,930

10,300

10,500

10,700

10,500

10,600

10,8.00

10,900

11,100

11,100

11,100

11,000

10,800

11,300

11,600

11,700

11,400

11,000

9,980

8,540

10,700

11,000

10,400

10,300

10,200

10,300

10,500

10,500

10,500

10,500

10,500

Mean

10,450

11,500

11,170

11,480

11,100

8,163

9,663

10,520

9,053

9,079

10,430

10,650

11,440

10,280

Sept.

10,400

10,600

10,800

9,670

9,950

10,500

10,900

10,900

10,400

9,640

11,000

11,700

11,900

12,000

12,200

11,500

11,200

12,000

12,100

12,100

12,300

12,200

11,900

11,300

11,900

12,200

12,600

12,700

12,800

11,900

-

Run-off In 

acre-feet

648,600

684,400

687,100

8,314,000

682,600

469,500

594,100

626,000

556,700

540,200

641,000

655,000

680,800

7,460,000

c Slope-atage-dlseharge relation unstable; discharge computed on baala of reccrda for atatlona 

below Boulder Dam and below Parker Dam, and on changes In contents of Lake Havaru.
26 COLORADO RIVER MAIN STEM

Lake Havasu near Parker Dam, Arlz.-Calif.

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

RT~27~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 Boulder Dam. Datum of gage is 400.54 

feet above mean sea level (general adjustment of 1929), 400.00 feet above mean sea 

level (general adjustment of 1912), 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 (general adjustment of 1929).

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

Records available.- July 1938 to September 1940.

Extremes.- Maximum contents during year, 555,400 acre-feet Apr. 6 (elevation of water 

surface, 444.64 feet); minimum, 470,900 acre-feet Aug. 2 (elevation, 440.52 feet). 

1938-40: Maximum contents, 622,500 acre-feet Sept. 7, 1939 (elevation of water 

surface, 447.72 feet).

Remarks.- Lake is formed by concrete-arch dam; dam completed and storage began July 1, 

I93B7 Usable capacity, 688,000 acre-feet, 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. Drawdown below elevation 440.54 feet (contents 472,000 acre-feet) not legally remissible except in an 

extreme emergency. Lake is used for flood control, for 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. 216). Figures 

given herein represent usable contents.

Elevation, In feet, at 12 p.m. mountain standard time, water year October 1939 to September 1940

Dmy

1

2

S

4

5

6

7

S

9

10

11

12

IS

14

16

16

17

IS

19

20

21

22

23

24

26

26

27

28

29

SO

31

Oct.

443.98

443.40

442.88

442.66

442.66

442.62

442.64

442.68

442.64

442.54

442.64

442.64

442.60

442.50

442.50

442.40

442.24

442.26

442.38

442.62

442.64

442.74

442.72

442.62

442.74

442.78

442.84

442.86

442.88

442.80

442.72

Hov.

442.72

442.78

442.86

443.00

443.08

443.06

443.00

443.08

443.12

443.24

443.40

443.48

443.32

443.12

443.14

443.24

443.38

443.62

443.64

443.66

443.48

443.64

443.64

443.62

443.42

443.22

443.00

442.80

442.78

442.82

Dee.

442.86

442.92

442.96

442.90

442.82

442.90

442.96

442.98

442.98

442.96

442.86

442.88

442.94

442.84

442.84

442.86

442.88

442.84

442.74

442.74

442.72

442.72

442.74

442.78

442.68

442.68

442.48

442.62

442.64

442.76

442.86

Jan.

442.94

443.00

443.06

443.16

443.26

443.30

443.28

443.24

443.14

443.12

443.12

443.08

443.08

442.88

442.72

442.62

442.48

442.70

442.94

443.14

442.92

442.96

442.92

442.70

442.66

442.68

442.70

442.66

442.60

442.28

442.26

Feb.

442.38

442.44

442.66

442.64

442.60

442.34

442.28

442.22

442.24

442.24

442.30

442.42

442.62

442.62

442.66

442.66

442.66

442.72

442.66

442.40

442.40

442.42

442.46

442.46

442.44

442.42

442.34

442.48

442.52

-

Mar.

442.54

442.64

442.46

442.20

441.90

441.82

441.84

441.78

441.70

441.56

441.66

441.62

441.60

441.44

441.30

441.24

441.36

441.42

441.62

441.64

441.80

441.83

442.06

442.22

442.38

442.60

442.62

442.78

442.76

442.84

442.82

Apr.

443.02

443.10

443.36

443.92

444.46

444.48

444.16

443.72

443.16

442.78

442.36

442.04

441.76

441.66

441.66

441.60

441.66

441.70

441.76

441.76

441.72

441.70

441.64

441.62

441.64

441.62

441.66

441.72

441.74

441.80

-

May

441.78

441.70

441.72

441.72

441.76

441.72

441.76

441.80

441.82

441.80

441.82

441.84

441.88

441.88

441.90

441.86

441.86

441.84

441.83

442.14

442.64

443.02

443.36

443.66

443.84

444.02

444.13

444.04

444. 04

444.08

444.10

June

443.94

443.32

443.58

443.00

442.60

442.10

441.74

441.40

441.44

441.50

441.64

441.72

441.30

441.80

441.76

441.80

441.30

441.74

441.66

441.63

441.62

441.42

441.32

441.20

441.08

440.92

440.30

440.80

440.88

440.90

-

July

440.94

440.96

440.94

440.94

440.92

440.92

440.86

440.32

440.76

440.74

440.74

440.74

440.74

440.84

440.34

440.82

440.30

440.84

440.84

440.94

441.10

441.14

441.12

441.08

441.04

441.08

441.04

440.96

440.84

44O.66

440.58

Avs-.

440.66

440.66

440.62

440.64

440.74

440.76

440.78

440.88

440.96

441.04

441.18

44?.. 22

44X.12

441.14

44? .18

441.28

44X.34

441.30

44.1.18

440.93

440.82

440.80

440.76

44!-). 76

440.78

440.32

440.86

440.86

440.90

440.88

440.84

Sept.

440.96

440.94

441.04

440.96

440.34

440.76

440.80

440.92

440.88

440.60

440.66

440.78

440.90

441.04

441.20

441.30

441.38

441.30

441.28

441.26

441.26

441.26

441.20

441.04

440.96

440.94

440.94

441.02

441.06

440.96

~
COLORADO RIVER MAIN STEM 27

Usable contents at 12 p.m. in thousands of acre-feet, of Lake Havasu near Par! er Dam, Ariz.-Calif, 

water year October 1939 to September 1940

Day

1

2

S

4

5

6

7

e

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

541.5

529.4

518.6

514.0

513.8

513.2

513.6

514.4

513.6

511.5

511.3

511.3

510.7

510.5

510.5

508.7

505.5

505.9

508.1

510.9

513.4

515.7

515.1

513.0

515.5

516.5

517.6

518.0

518.4

517.0

515.1

Nov.

515.3

516.3

518.2

521.2

522.8

522.4

521.2

522.6

523.7

526.0

529.4

531.2

527.7

533.7

523.9

526.2

528.9

532.1

534.4

532.9

531.2

532.5

534.6

534.0

530.0

525.8

521.2

516.8

516.3

517.2

-

Bee.

518.2

519.3

520.3

518.8

517.2

518.8

520.3

520.7

520.5

520.1

518.0

518.4

519.7

517.8

517.8

518.2

518.4

517.6

515.5

515.5

515.1

515.1

515.7

516.3

514.4

512.3

510.1

510.9

513.4

515.9

518.2

Jan.

519.9

521.2

522.2

524. B

526.4

537.5

527.0

526.2

534.1

523.7

523.7

522.6

522.8

518.6

515.1

511.1

510.3

514.9

519.9

523.9

519.5

520.3

519.3

514.9

514.2

514.4

514.9

514.4

510.7

506.1

505.9

Feb.

508.1

509.3

511.9

513.4

512.6

507.5

506.3

505.1

505.3

505.5

506.7

508.9

511.1

510.9

514.0

513.8

514.4

515.1

511.9

508.5

508.7

509.1

509.7

509.9

509.5

509.1

507.5

510.1

510.9

_

-

Mar.

511.3

511,5

509.7

504.5

498.7

496.9

497.5

496.3

494.7

493.7

493.7

493.1

490.7

489.3

486.7

485.5

487.9

489.1

491.1

493.1

496.5

498.3

501.9

505.1

508.1

510.5

513.2

516.3

516.1

517.8

517.4

Apr.

521.6

523.0

528.5

540.3

551.6

552.0

545.5

536.3

524.5

516.5

507.9

501.5

495.9

491.9

491.9

492.5

493.7

494.5

495.9

495.9

495.1

494.5

493.5

493.1

493.3

493.9

493.9

494.9

495.5

496.5

-

May

496.3

494.7

494.9

495.1

495.7

495.1

495.9

496.7

497.1

496.7

497.1

497.5

498.1

498.1

498.5

497.9

497.9

497.5

498.1

503.5

513.6

521.6

528.7

534.8

538.8

542.6

545.7

543.0

543.0

543.8

544.0

June

540.9

538.4

533.3

521.0

510.5

502.5

495.3

488.5

489.5

490.7

491.5

494.9

496.5

496.5

495.9

496.5

496.5

495.5

493.9

492.1

490.9

488.9

487.1

484.5

482.1

478.9

476.7

476.7

478.1

478.7

-

July

479.5

479.7

479.5

479.3

478.9

478.9

477.9

476.9

4V5.9

475.5

475.5

475.5

475,5

4V7.5

4V7.5

4V7.1

476. 7

477. 5

477.5

479.5

482.5

483.5

482.9

482.3

481.5

482.1

481.3

479.9

477.3

473.7

472.1

Aug.

471.9

471.9

473.1

471.5

475.3

475.7

476.3

478.1

479.9

481.5

484.3

485.1

483.1

483.3

484.3

486.3

487.5

486.7

484.1

480.1

476.9

476.7

475.9

475.7

476.3

477.1

477.7

477.7

478.5

478.1

477.5

Sept.

479.7

479.3

481.5

479.9

477.3

475.7

476.5

478.9

478.3

472.7

474.3

476.3

478.5

481.5

484.7

486.7

488.1

486.7

486.1

485.7

485.9

485.9

484.7

481.5

479.9

479.5

479.5

480.9

481.9

479.7

-

Note.- Contents show storage above sill of regulating gatea

Honthly elevation and contents, water year October 1939 to September 1940*

Date

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

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

Water year 1939-40. ......

Elevation 

(feet)t

444.42 

442.72 

442.82 

442.86

-

442.26 

442.52 

442.82 

441.80 

444.10 

440.90 

440.58 

440.84 

440.96

-

Usable 

Contents 

(acre-feet)

550,800 

515,100 

517,200 

518,200

-

505,900 

510,900 

517,400 

496,500 

544,000 

478,700 

472,100 

477,500 

479,700

-

Change in contents 

during month 

(acre-feet)

-35,700 

+2.100 

+1^,000

+36,700

-12,300 

+5,000 

+6 , 500 

-20,900 

+47,500 

-65,300 

-6. ,600 

+5,400 

+2,200

-71,100

tElevation at midnight.
28 COLORADO RIVER MAIN STEM

Colorado River below Parker Dam, Ariz.-Calif.

Location.- Mater-stage recorder, lat, 34°15'30", long. 114°09'10", in NEJ sec. 32,

 TTTm., R. 18 W., Gila and Salt River meridian, or NEiSWi sec. 16, T. 2 F., 

R. 27 E., San Bernardino meridian, 4.1 miles downstream from Parker Dam, 11 miles 

northeast of Parker, Aria., and 160 miles downstream from Boulder Dam. Datum of 

gage is 346.16 feet (general adjustment of 1929) or 345.61 feet (general adjustment 

of 1912) above mean sea level.

Drainage area.- 178,800 square miles (revised).

Records available.- February to December 1934 (gage heights and fragmentary discharge 

records), January 1935 to September 1940.

Extremes.- Maximum discharge during year, 20,100 second-feet Apr. 3 (gage height, 25.14

 feet); minimum, 275 second-feet Feb. 13 (gage height, 14.93 feet); minimum daily,

4,860 second-feet May 21.

1935-40 (regulated): Maximum discharge, 42,400 second-feet Feb. 8, 1937; minimum,

250 second-feet.July I, 1938, caused by closure of construction diversion tunnel at

Parker Dam; minimum daily, 1,440 second-feet Feb. 15, 1935.

An unregulated discharge of probably less than 1,350 second-feet occurred Aug. 18,

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

date). 

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

at Boulder and Parker Dams. Records computed on basis of mountain standard time.

Water spilled from Gene Reservoir on Colorado River aqueduct returned to Lake Havasu

above station; water spilled from Copper Basin Reservoir returned to river 2 miles

below station; some water probably returned to river both above and below station

by percolation from both reservoirs. During the year 167 discharge measurements

were made.

Discharge, in second-feet, mater year October 1939 to September 1940

Day

1 

2 

S

4

e

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14,700 

14,600 

14,300 

12,700 

11,400

11,200 

10,800 

10,800 

10,800 

10,800

10,500 

10,300 

10,300 

10,300 

10,300

10,300 

10,300 

10,300 

10,100 

9,770

9,750 

9,840 

10,100 

10,200 

10,000

9,960 

9,980 

10,000 

9,980 

9,940 

9,960

Nov.

10,100 

10,100 

9,920 

10,100 

10,200

10,200 

10,000 

10,300 

10,400 

10,500

10,500 

10,800 

10,900 

10,900 

10,900

10,900 

10,800 

10,900 

11,100 

11,200

11,200 

11,600 

11,900 

11,900 

11,800

11,800 

11,800 

11,400 

10,800 

10,900

Dec.

11,000 

10,900 

10,600 

11,000 

11,000

11,000 

10,800 

11,000 

11,000 

11,000

11,000 

8,870 

10,200 

12,400 

11,200

11,200 

11,300 

11,300 

11,300 

11,300

11,000 

10,800 

10,800 

10,700 

10,800

10,600 

10,200 

9,920 

9,540 

9,620 

9,710

Month

OCt

HOT

Dec

Ca.

Jam 

F»b 

Man Apr' 

May 

JTOM 

Jul 

Augi 

3ep1

Wa

Lender year 1939. .....

ter year 1939-49......

Jan.

9,800 

9,780 

9,970 

10,400 

11,300

11,800 

12,000 

12,000 

11,900 

11,900

11,900 

11,900 

11,800 

11,SOO 

11,700

11,800 

11,600 

9,650 

10,100 

10,300

13,900 

10,100 

10,400 

13,200 

11,600

11,200 

11,000 

10,800 

10,400 

8,620 

8,720

Feb.

S,760 

8,780 

S,960 

9,490 

9,400

8,860 

8,340 

8,240 

7,820 

7,800

7,700 

6,180 

7,180 

8,960 

6,480

8,610 

7,460 

7,460 

7,460 

7,440

7,440 

7,460 

7,460 

7,440 

7,460

7,110 

7,520 

7,480 

7,460

Mar.

7,400 

7,400 

7,400 

7,400 

7,380

7,380 

7,400 

7,400 

7,720 

8,140

8,120 

S,140 

S,380 

8,380 

8,600

9,150 

9,300 

9,400 

9,400 

9,400

9,430 

9,700 

9,910 

9,910 

9,890

9,950 

9,970 

10,200 

10,800 

10,800 

11,100

Apr.

11,700 

15,200 

14,600 

11,300 

11,500

11,600 

11,500 

11,300 

11,200 

11,200

11,200 

10,800 

9,820 

9,800 

9,780

9,760 

9,760 

9,760 

9,550 

9,280

9,300 

9,300 

9,320 

9,340 

9,360

9,380 

9,380 

9,400 

9,430 

9,430

May

9,450 

9,450 

9,450 

9,450 

9,450

9,450 

9,450 

9,470 

9,490 

9,510

9,530 

9,530 

9,550 

9,550 

9,550

9,550 

9,570 

9,550 

9,570 

7,700

4,860 

5,020 

5,020 

4,990 

4,950

4,970 

4,900 

5,870 

6,920 

7,000 

7,220

June

7,960 

7,940 

8,040 

10,100 

10,900

11,000 

10,900 

10,900 

11,000 

11,100

10,700 

9,220 

9,010 

8,900 

S,920

8,920 

8,920 

9,050 

9,510 

9,490

9,490 

9,550 

9,590 

9,700 

9,760

9,720 

9,720 

9,820 

9,780 

9,760

Observed

Secondfoot -days

334,280 

325,820 

333,060

4,243,690

343,340 

228,210 

274,950 

314,250 

249,990 

289,370 

313,550 

313,440 

331,630

3,651,890

Discharge In 

second feet

Haxlmum

14,700 

11,900 

12,400

33,200

13,900 

9,490 

11,100 

15,200 

9,570 

11,100 

10,400 

10,600 

12,300

15,200

Minimum

9,750 

9,920 

8,870

2,610

8,620 

6,180 

7,380 

9,280 

4,860 

7,940 

9,550 

9,640 

9,930

4,860

Mean

10,780 

10,860 

10,740

11,630

11,080 

7,869 

8,869 

10,480 

8,064 

9,646 

10,110 

10,110 

11,050

9,978

Run- off 

In 

acre-feet

663,000 

646,300 

660,600

8,417,000

681,000 

452,600 

545,400 

623,300 

495,800 

574,000 

621,900 

621,700 

657,800

7,243,000

July

9,760 

9,890 

10,300 

10,300 

10,400

10,300 

10,300 

10,300 

10,300 

10,400

10,400 

10,400 

10,400 

10,300 

10,800

10,800 

10,200 

10,200 

10,800 

10,200

10,200 

10,800 

10,800 

10,800 

9,850

9,550 

9,620 

9,680 

9; 720 

9,700 

9,680

Return 

surface 

flow from 

Copper Basin 

Reservoir 

(acre-feet)

0 

0 

0

0

10,820 

6,450 

0 

0 

0 

0 

0 

0 

0

17,270

Ai-n.

9,660 

9,640 

9,700 

9,740 

9,800

9,800 

10,100 

9,740 

9,640 

9,680

9,700 

9,740 

10,200 

10,600 

10,600

10,600 

10,600 

10,600 

10,600 

10,500

10,500 

10,500 

10,400 

10,200 

10,000

10,100 

10,100 

10,100 

10,100 

10-100 

10,100

Sept.

10,100 

10,500 

10,600 

10,500 

10,300

10,300 

10,100 

10,000 

9,930 

10,200

10,100 n,ioo

10,100 

10,100 

10,200

10,200 

10,800 

11,700 

12,100 

12,100

12,100 

12,200 

12,300 

12,100 

12,100

12,100 

12,100 

12,200 

12,200 

12,200

Adjusted for 

return surface 

flow from 

Copper Basin 

Reservoir 

(acre-feet)

663,000 

646,300 

660,600

8,417,000

691,800 

459,000 

545,400 

683,300 

495,800 

574,000 

621,900 

681,700 

657,800

7,861,000
COLORADO RIVER MAIN STEM 29

Colorado River near Plcacho, Calif.

Location.- Water-stage recorder, lat. 33°02'00", long. 114°33'00", In NWi sec. 22, T. 

13 S., R. 23 E., San Bernardlno meridian, 4 miles downstream from Plcacho, 14i miles 

upstream from Imperial Dam (for All-Amerlcan canal), 133 miles down-stream from Parker 

Dam, and 289 miles downstream from Boulder Dam. Datum of gage Is 167.38 feet above 

mean sea level (general adjustment of 1929).

Drainage area.- 184,100 square miles (revised). 

Records available.- July 1934 to September 1940.

Extremes.- Maximum discharge during year, 15,400 second-feet Apr. 4; maximum elevation, 

185.85 feet sometime during period Sept. 20-30; minimum discharge, 3,800 second-feet 

May 29; minimum dally, 3,930 second-feet May 28, 29; minimum elevation, 182.80 feet 

Oct. 14.

1935-40 (regulated): Maximum discharge, 40,800 second-feet Sept. 5, 1939 (elevation, 186.13 feet); minimum, 990 second-feet July 4, 1938; minimum dally, 1,450 

second-feet Feb. 17, 1935.

For a period extending back to 1902 or longer, an unregulated minimum discharge 

of 538 second-feet and an unregulated minimum dally discharge of 568 second-feet both 

occurred Aug. 3, 1934.

Remarks.- Records good. Diversions above station for Irrigation. Flo-v regulated at 

Boulder Dam since Feb. 1, 1935, and at Parker Dam since July 1, 1938. Records computed on basis of mountain standard time. Elevation of spillway crest of Imperial 

Dam, 181.0 feet. Normal operating level of Imperial Reservoir, 179.5 feet.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

g 

3 

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14 

IS

16 

17 

18 

19 

80

81 

88 

83 

84 

85

86 

87 

88 

29 

30 

31

Oct.

12,000 

14,000 

14,400 

14,000 

13,300

11,200 

10,600 

10.400 

10,400 

10,400

10,400 

10,300 

9,820 

9,680 

9,750

9,760 

9,680 

9,750 

9,750 

9,620

9,490 

9,750 

9,880 

9,550 

9,750

9,680 

9,490 

9,490 

9,620 

9,490 

9,360

HOT.

9,620 

9.680 

9,750 

9,620 

9,750

9,820 

9,820 

9,750 

10,200 

10,200

10,100 

10,100 

10,200 

10,600 

10,600

10,800 

10,800 

10,700 

10,800 

10,900

11,100 

11,000 

10,900 

11,200 

11,200

11,300 

11,400 

11,500 

11,700 

11,200

Dec.

10,600 

10,800 

10,700 

10,600 

10,600

10,800 

10,500 

10,600 

10,800 

10,900

11,100 

11,000 

10,600 

10,400 

10,700

11,400 

11,400 

11,600 

11,400 

11,300

11,200 

11,000 

10,800 

10,800 

10,600

10,800 

10,500 

10,200 

9,950 

9,620 

9,420

Jan.

9,530 

9,530 

9,680 

9,530 

9,840

10,200 

10,900 

11,400 

11,500 

11,500

11,600 

11,700 

11,600 

11,600 

11,600

11,500 

11,500 

11,600 

10,300 

9,790

9,530 

10,700 

10,800 

9,480 

10,500

12,300 

11,900 

11,600 

11,200 

11,100 

10,400

Feb.

9,740 

9,890 

9,580 

9,280 

9,430

9,630 

9,230 

8,250 

7,990 

7,830

7,660 

7,460 

7,600 

7,350 

7,700

7,230 

7,540 

7,120 

7,080 

7,230

7,310 

7,420 

7,080 

7,120 

7,120

 7,120 

7,060 

6,970 

6,900

Month

Dot 

HOT 

Dec

0

Jan 

P«t 

Mar

API

Jin 

Jul

.a«

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

alendar year 1939 ..................;...

uary

ust....................................

ater year 1939-4 3......................

liar.

7,010 

7,150 

7,150 

7,150 

7,190

7,160 

6,970 

6,940 

6,370 

6,800

7,080 

7,420 

7,500 

7,740 

8,030

8,080 

8,210 

8,390 

8,390 

8,340

8,480 

8,660 

8,760 

9,090 

9,380

9,330 

9,380 

9,530 

9,680 

9,790 

10,000

Apr.

10,100 

10,500 

11,400 

14,400 

11,000

10,600 

10,900 

11,000 

10,800 

10,500

10,100 

9,970 

9,920 

9,410 

8,830

8,970 

3,920 

8,920 

8,920 

8,920

8,870 

8,970 

8,970 

8,680 

8,360

8,320 

8,360 

8,640 

8,590 

8,540

Seoondfoot-days

324,650 

316,310 

332,490

3,952,790

336,610 

228,710 

251,530 

290,280 

221,340 

249,150 

263,750 

263,860 

294,420

3,372,100

May

8,450 

8,400 

3,320 

8,320 

8,400

8,590 

8,400 

8,400 

8,320 

8,320

8,270 

8,360 

8,450 

8,320 

8,270

8,320 

8,270 

8,540 

8,590 

8,540

8,400 

5,990 

4,030 

4,100 

4,130

4,060 

3 970 

2,930 

3,930 

4,810 

6,140

Mqx^rWyn

14,400 

11,700 

11,500

27,400

12,300 

9,890 

10,000 

14,400 

8,590 

9,560 

8,730 

8,970 

11,200

14,400

June

6,260 

6,800 

7,320 

7,160 

7,240

9,310 

9,610 

9,560 

9,560 

9,560

9,610 

9,510 

8,500 

7,660 

7,740

7,330 

8,090 

8,040 

7,870 

8,000

8,450 

8,400 

8,450 

8,450 

8,450

8,360 

8,360 

8,400 

8,400 

8,400

Jily

8,500 

3,450 

3,320 

8,360 

8,730

8,730 

8,680 

8,680 

8,680 

8,640

8,640 

8,640 

8,600 

8,700 

8,700

8,700 

8,600 

8,500 

8,500 

8,500

8,500 

8,600 

8,700 

8,700 

8,500

8,600 

8,200 

7,900 

8,000 

8,200 

8,000

Aug.

8,000 

7,900 

3,000 

8,100 

8,200

8,300 

8,200 

8,180 

8,270 

8,220

3,180 

8,180 

8,090 

8,000 

3,400

8,830 

8,730 

8,330 

8,830 

8,920

8,830 

8,870 

8,780 

8,870 

8,920

8,920 

8,870 

8,920 

8,970 

8,870 

8,680

Minimum Mean

9,360 10,470 

9,620 10,540 

9,420 10,730

3,230 10,830

9,480 10,830 

6,900 7,887 

6,300 8,114 

8,320 9,676 

3,930 7,140 

6,260 8.305 

7,900 8,508 

7,900 8,512 

8,730 9,814

3,930 9,213

Sept.

8,920 

9,160 

9,360 

9,510 

9,360

9,160 

8,920 

8,830 

8,830 

8,780

8,730 

9,020 

8,870 

8,870 

9,210

9,310 

9,460 

9,920 

10,100 

10,700

11,000 

11,100 

11,200 

11,200 

10,900

10,800 

10,700 

10,700 

10,900 

10,900

Run-off in 

acre-feet

643,900 

627,400 

659,500

7,840,000

666,700 

453,600 

498,900 

675,800 

439,000 

494,200 

523,100 

623.400 

684,000

6,688,000

Hote.- Discharge for periods of no gage-height record. July 17 to Aug. 7, 3eit. 20-30, computed 

on basis of recorded range of stage and records for stations below Parker Dam and at Tuma, talcing 

Into account diversions from the river between stations and changes In content-" In Imperial Reservoir.
30 COLORADO RIVER MAIN STEM

Colorado River at Yuma, Ariz.

Location.- Water-stage recorder, lat. 32°43'45", long. 114037'15", in NWiNEi sec. 35, T. 

16 S., R. 22 E., San Bernardino meridian, 1,800 feet downstream from highway bridge at 

Yuma, 5 miles downstream from Gila River, 7 miles upstream from international boundary 

at California-Mexico line, and 19 miles downstream from Imperial Dam. Datum of gage 

is 102.79 feet (general adjustment of 1912 and 1929), or 102.25 feet (Yuma project 

datum) above mean sea level (subject to correction due to undetermined changes caused 

by earthquake of May 18, 1940).

Drainage area.- 242,900 square miles (revised).

Records available.- April 1878 to December 1901 (gage heights only), January 1902 to 

September 1940.

Extremes.- Maximum discharge during year, 13,800 second-feet Jan. 16; maximum gage height, 

20.56 feet Oct. 3; minimum discharge, 3,060 second-feet May 31 (gage height, 15.15 

feet), caused by regulation at Laguna Dam; minimum daily, 3,220 second-feet ray 31.

1902-40: Maximum discharge, 250,000 second-feet Jan. 22, 1916 (gage heiglrt, 34.0 

feet); minimum daily, 18 second-feet Aug. 25-27, 1934, caused by diversion of river 

*">ow at Laguna Dam.

Remarrs.- Records excellent. Many diversions for irrigation from Colorado River and

tributaries. Ail-American canal diverted some water at Imperial Dam, 19 miles upstream, 

in £=ptember (see pp. 31-32). None was returned to river this year through Pilot Knob 

wastaway 7 miles downstream. Yuma main canal diverts water at Laguna Dam, 14 miles upstream, and that part of the diverted water not used for irrigation is returned through 

Yuma main canal wasteway half a mile downstream (see pp. 33-35 Tor records of canal 

and wasteway). Flow of Colorado River regulated at Boulder, Parker, and Imperial Dams. 

No regulation on Gila River below Gillespie Dam. Records computed on basis cf mountain 

standard time. During the year 215 discharge measurements were made.

Discharge, in second-feet, water year October 1939 to September

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

16

16

17ie

20

21

82 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

9,760 

11,600 

12,900 

12,200 

12,300

11,400 

9,570 

9,050 

8,870 

8,780

8,280 

8,750 

8,200 

8,030 

8,260

8,140 

8,080 

7,910 

8,430 

8,030

8,000 

8,000 

7,520 

7,390 

7,630

7,970 

8,030 

7,890 

7,860 

7,720 

7,660

HOT.

7,690 

7,690 

7,770 

7,970 

7,940

7,940 

7,830 

8,080 

8,080 

8,540

8,660 

8,540 

8,310 

8,490 

8,960

8,840 

8,660 

8,780 

9,050 

9,200

9,140 

9,140 

9,350 

9,230 

9,630

9,820 

9,790 

10,000 

9,850 

9,940

Dec.

9.600 

9,110 

9,020 

9,230 

9,050

8,960 

9,260 

9,170 

9,080 

8,840

9,050 

9,570 

9,200 

8,310 

8,260

8,520 

9,440 

9,320 

9,540 

9,540

9,320 

9,260 

8,990 

8,990 

9,350

9,510 

9,200 

8,990 

8,490 

8,030 

7,910

Jan.

7,630 

7,630 

7,500 

7,660 

7,770

8,540 

8,960 

9,820 

10,100 

10,100

9,910 

10,000 

10,400 

10,300 

11,000

13,700 

13 , 300 

12, 700 

12,000 

9,760

8,490 

7,630 

4,060 

3,840

3,740

5,710 

11,100 

10,700 

10,700 

10,700 

10,200

Feb.

8,110 

8,090 

8,510 

8,410 

7,880

7,940 

8,250 

S.430 

7,230 

6,470

6,330 

6,440 

5,780 

5,370 

5,110

5,250 

5,240 

5,290 

5,330 

5,250

5,290 

5,270 

5,300 

5,270 

5,190

5.090 

5,160 

5,350 

5,330

Month

Oct 

HOY 

Dec

0

Jan 

Pet 

Max 

Apr 

May 

Jim 

Jul 

Aug 

Set

1 ater year 1939-'

Bar.

5,270 

5,490 

5,170 

5,190 

5,130

5,090 

5,090 

5,080 

5,130 

5,160

5,160 

5,190 

5,790 

5,830 

5,840

5,880 

6,030 

6,430 

6,560 

6,720

6,720 

6,700 

6,830 

6,780 

7,140

7,250 

7,210 

7,140 

7,210 

7,610 

7,670

Apr.

8,170 

8,410 

8,610 

10,090 

12,020

8,920 

8,940 

8,590 

9,010 

9,OSO

8,840 

8,430 

8,370 

8,290 

7,330

6,900 

6,940 

7,060 

7,010 

6,990

7,080 

6,760 

6,830 

6,970 

6,900

6,330 

6,400 

6,510 

6,690 

6,650

Secondfoot-clays

274, 210 

262,910 

280, 110

3,305,840

285,650 

181,960 

189,490 

235,130 

183,600 

162,910 

199,160 

203,420 

225,120

2,683,670

May

6,720 

6,740 

6,780 

6,870 

6,630

6,690 

6,650 

6,700 

6,670 

6,450

6,450 

6,420 

6,270 

6,290

6,380

6,340 

6,400 

6,310 

6,250 

6,560

6,490 

5,860 

3,650 

4,340 

4,680

5,570 

5,570 

5,300 

4,360 

3,990 

3,220

Maximum

12,900 

10,000 

9,600

24,800

13,700 

8,510 

7,670 

12,020 

6,870 

6,250 

6,880 

7,250 

8,540

13,700

June

3,790 

3,960 

4,100 

4,810 

5,050

5,110 

4,840 

4,740 

4,970 

5,050

5,190 

5,270 

5,450 

5,780 

6,100

5,540 

5,670 

5,570 

6,130 

6,120

6,050 

5,840 

5,860 

6,250 

6,O50

6,060 

6,050 

5,930 

5,740 

5,840

July

6,170 

6,150 

6,380 

6,220 

6,130

6,430 

6,360 

6,340 

6,250 

6,510

6,600 

6,560 

6,180 

6,290 

6,540

6,540 

6,580 

6,450 

6,270 

6,610

6,790 

6,880 

6,610 

6,760 

6,700

6,540 

6,830 

6,380 

5,910 

6,OOO 

6,200

MlPJJBfl1"1

7,390 

7,690 

7,910

2,030

3,740 

5,090 

5,080 

6,330 

3,220 

3,790 

5,910 

5,800 

6,650

3,220

Aug.

6,270 

6,S20 

6,580 

5,800 

6,130

5,970 

6,S90 

6,360 

6,290 

6,180

6,230 

6,200 

6,040 

6,090 

6,060

6,140 

6,960 

7,250 7,no

7,090

7,100 

7,070 

6,940 

6,870 

6,870

6,950 

6,980 

6,960 

6,860 

6,720 

6,840

Sept.

6,710 

6,650 

6,660 

7,020 

7,440

7,580 

7,430 

7,230 

7,060 

7,020

6,840 

6,770 

6,810 

7,O30 

6,960

7,020 

7,010 

7,020 

7,480 

7,710

8,230 

8,540 

8,280 

8,240 

8,320

8,390 

8,520 

8,340 

8,400 

8,410

u.,,,.. Run-off in 116811 acre-feet

8,845 543,900 

8,76'* 521,500 

9,036 555,600

9,057 6,557,000

9,215 566,600 

6,274 360,900 

6,113 375,800 

7,836- 466,400 

5,923 364, 200 

5,430 323,100 

6,425 395,000 

6,562 403,500 

7,504 446,500

7,332 5,323,000
COLORADO RIVER MAIN STEM 31

All-Amerlcan canal near Imperial Dam, Calif.

Location.- Water-stage recorder, lat. d20 G2'10", long. 114°28'48", In SEiNWi sec. 17, T. 15 

S., R. 24 E., San Bernardino meridian, on left bank, 6,000 feet downstream from canal 

Intake at Imperial Dam. Datum of gage is 150.00 feet above mean sea level (general adjustment of 1929, subject to correction due to undetermined changes caused by earthquake 

of May 18, 1940).

Records available.- October 1939 to September 1940.

Extrernes.- Maximum discharge during year, 890 second-feet Sept. 27 (ga<re height, 9.20 

feet); no flow Oct. 1 to Sept. 5.

Remarks.- Records excellent except those during period temporary staff gage was used, Sept. 

6-15, which are fair. Flow passing this station is quantity available for irrigation 

on projects below, except for canal losses and wastes In Pilot Knob and Yuma main 

canal wasteways. This year water used only for canal priming.

Discharge, in second-feet, Sept. 6-3O, 194O

Sept 6 5

7 5

8 2

9 3

10 7

Sept. 11

12

13

14

15

8

5

2

4

8

Sept. 16

17

18

19

20

61

183

370

359

451

Sept. 21

22

23

24

35

544

540

529

529

529

Sept. 26

27

2S

29

30

525

656

734

678

691

Monthly discharge, In second-feet, water year October 1939 to September 1940

Month

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

Seoondfoot-days

_

Q

Mn-HTMiim

-

M^n^nnmi

-

Mean

-

248

Run-off in 

acre-feet

Q

Q

_

All-Amerlcan canal above Pilot Knob wasteway, Calif.

Location.- Water-stage recorder, lat. 32°45', long. 114°42', in SEi se?. 24, T. 16 S., R. 

21 E., San Bernardino meridian, at bridge on U. S. Highway 80, 1 mile upstr.eam from 

Pilot Knob wasteway, 5-g miles northwest of Yuma, and 19-|- miles downstream from head at 

Imperial Dam. Datum of gage Is 148.49 feet above mean sea level (general adjustment of 

1929, subject to correction due to undetermined changes caused by earthquake of May 18, 

1940.

Records available.- October 1958 to September 1940.

Extremes.- Maximum discharge during year, 565 second-feet Sept. 28 (gage height, 4.46 

feet); no flow Oct. 1 to Sept. 17.

1938-40: Maximum discharge, 707 second-feet Sept. 23, 1939; maximum gage height, 

6.22 feet Sept. 11, 1939; no flow during most of period.

Remarks.- Records good. Flow past this station less flow past station below Pilot Knob 

wasteway Is flow wasted through Pilot Knob wasteway, except for canal losses. This 

year there was no flow through Pilot Knob wasteway except negligible leakage. All 

flow In canal was used for priming purposes.

Discharge, In second-feet, Sept. 8-3O, 1940

Sept .18

19

20

21

22

20

130

188

303

333

Sept .23

24

25

26

336

336

343

347

Sept. 27

28

29

30

368

540

487

503

Monthly discharge, In second-feet, water year October 1939 to September 1940

Month Seoondf oat-days

13,534

4,234

4,234

Mn*y^TniiTffi

650

540

540

Minimum

0

o

0

Mean

37.1

141

11.6

Run-off in 

acre-feet

26,850

8,400

8,400

Note.- No flow Oct. 1 to Sept. 17.
32 COLORADO RIVER MAIN STEW

All-Amerlcan canal below Pilot Knob wasteway, Calif.

Location.- Water-stage recorder, lat. 32°43', long. 114°44', In SWi (revised) sec. 35, T. 

T5~S77 R. 21 E., San Bernardlno merldan, 1.6 miles downstream from Pilot Krob wasteway, 

64 miles west of Yuma, and 22 miles downstream from head at Imperial Dam. Datum of 

gage Is 147.70 feet above mean sea level (general adjustment of 1929, subject to correction due to undetermined changes caused by earthquake of May 18, 1940).

Records available.- April 1939 to September 1940.

Extremes.- Maximum discharge during year, 527 second-feet Sept. 28 (gage height, 3.71 

feet); no flow Oct. 1 to Sept. 19.

1939-40: Maximum discharge, 627 second-feet Sept. 23, 1939 (gage height, 3.92 feet); 

no flow during most of each year.

Remarks.- Records excellent. Water passing this station Is quantity available for Irrigatlon In Imperial and Coachella Valleys except for canal losses.

Discharge, In aecond-feet, Sept. 2O-30, 1940

Sept. 20

21

22

23

96

247

290

298

Sept. 24

26

26

27

300

303

308

322

Sept.SS

£9

30

488

461

471

Monthly discharge, in second-feet, October 1939 to September 1940

Month

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

Secondfoot-days

0

1,745

3,564

Maximum

0

0

577

488

m«-S«nnti

0

0

0

0

Mean

0

0

4-6

0

0

119

9.8

Run-off in 

aore-feet

0

0

3,460

0

0

7,110

7,110
COLORADO RIVER MAIN STEM 33

Yuma main canal at siphon-drop power plant, near Yuma, iris.

Location.- Two gages, consisting of staff gage on forebay and water-stage recorder on 

 tailrace at power plant, lat. 32°46'30", long. 114°38'00", in SEiSEi sec. 10, T. 16 S., 

R. 22 E., San Bernardino meridian, 500 feet downstream from turnout in Ail-American 

canal to Yuma main canal, 3i miles north of Yuma, and lOjs miles dowrstream from head 

of Yuma main canal at Laguna Dam. Datum of each gage is at mean sea level (Yuma project 

datum) or 0.70 foot above mean sea level (general adjustment of 1929), subject to correction due to undetermined changes caused by earthquake of May 18, 1940.

Records available.- October 1938 to September 1940.

Remarks.- Records excellent. Daily discharge determined from flow through turbines, computed from relation between discharge, head, and gate openings, to vhich is added small 

discharge bypassed around power plant through waste gates. Bypassed1 discharge computed 

on basis of gage readings at forebay, and record of gate openings, by orifice formula. 

Rating of turbines checked by current-meter measurements. Records show quantity of 

water available for irrigation on Valley division of Yuma project aril that available 

for spill through Yuma main canal wasteway 3 miles downstream.

Cooperation.- Record of gage heights at forebay and of turbine gate openings furnished by 

Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12

IS 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

51

Oct.

470 

1,190 

1,160 

1,280 

1,310

1,300 

1,360 

1,430 

1,400 

1,420

1,450 

1,540 

1,570 

1,600 

1,620

1,550 

1,570 

1,560 

1,590 

1,580

1,610 

1,610 

1,550 

1,550 

1,590

1,610 

1,600 

1,610 

1,630 

1,580 

1,610

HOT.

1,610 

1,620 

1,620 

1,350 

1,640

1,570 

1,580 

1,620 

1,640 

1,650

1,640 

1,650 

1,610 

1,630 

1,640

1,630 

1,640 

1,650 

1,660 

1,620

1,640 

1,650 

1,640 

1,650 

1,660

1,670 

1,640 

1,620 

1,650 

1,660

Dec.

1,660 

1,660 

1,670 

1,640 

1,640

1,650 

1,670 

1,670 

1,380 

1,660

1,650 

1,650 

1,650 

1,650 

1,660

1,680 

1,680 

1,630 

1,640 

1,660

1,670 

1,670 

1,680 

1,680 

1,680

1,660 

1,680 

1,670 

1,680 

1,680 

1,670

Jan.

1,690 

1,640 

1,650 

1,660 

1,670

1,510 

1,670 

1,680 

1,650 

1,650

1,670 

1,670 

1,700 

1,700 

1,670

1,660 

1,670 

1,680 

1,690 

1,700

1,710 

1,650 

1,650 

1,650 

1,660

1,680 

1,440 

1,710 

1,640 

1,650 

1,670

Feb.

1,680 

1,680 

1,700 

1,700. 

1,640

1,630 

1,670 

1,680 

1,680 

1,670

1,680 

1,640 

1,610 

1,630 

1,660

1,690 

1,700 

1,710 

1,640 

1,630

1,640 

1,670 

1,690 

1,680 

1,680

1,620 

1,620 

1,650 

1,650

Month

Dot 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr 

Ka; 

Jim 

Jul 

Aug 

Sep

11

 lender year 19? 9. .....................

11.....................................

afcer year 1939-4 0. .....................

Mar.

1,680 

1,340 

1,680 

1,640 

1,620

1,640 

1,680 

1,680 

1,680 

1,680

1,640 

1,620 

1,640 

1,630 

1,670

1,680 

1,690 

1,630 

1,600 

1,650

1,650 

1,650 

1,650 

1,660 

1,620

1,600 

1,620 

1,630 

1,670 

1,420 

1,680

Apr.

1,610 

1,620 

1,650 

1,650 

1,660

1,680 

1,680 

1,620 

1,630 

1,670

1,650 

1,670 

1,680 

1,680 

1,600

1,590 

1,630 

1,640 

1,640 

1,670

1,670 

1,590 

1,610 

1,630 

1,650

1,670 

1,680 

1,670 

1,610 

1,600

Secondfoot-days

45,500 

48,750 

51,270

580,277

51,390 

48,220 

50,620 

49,300 

49,890 

48,180 

50,290 

49,580 

47,860

590,850

May

1,650 

1,650 

1,650 

1,350 

1,660

1,600 

1,600 

1,610 

1,620 

1,620

1,630 

1,660 

1,580 

1,600 

1,620

1,640 

1,640 

1,650 

1,660 

1,580

1,580 

1,600 

1,610 

1,640 

1,650

1,650 

1,590 

1,580 

1,560 

1,600 

1,560

Mn-y^Timm

1»63Q 

1,670 

1,680

1,780

1,710 

1,710 

1,690 

1,680 

1,660 

1,670 

1,670 

1,660 

1,640

1,710

June

1,530 

1,620 

1,550 

1,570 

1,600

1,640 

1,630 

1,620 

1,640 

1,580

1,600 

1,600 

1,630 

1,640 

1,380

1,650 

1,590 

1,590 

1,580 

1,600

1,620 

1,650 

1,660 

1,590 

1,580

1,610 

1,620 

1,630 

1,660 

1,670

July

1,600 

1,580 

1,580 

1,620 

1,650

1,670 

1,670 

1,610 

1,590 

1,600

1,630 

1,640 

1,650 

1,670 

1,600

1,570 

1,610 

1,620 

1,660 

1,660

1,660 

1,590 

1,580 

1,590 

1,650

1,660 

1,650 

1,660 

1,590 

1,580 

1,600

Minimum

470 

1,350 

1,380

0

1,440 

1,610 

1,340 

1,590 

1,350 

1,380 

1,570 

1,390 

1,540

470

Aug.

1,620 

1,640 

1,390 

1,660 

1,600

1,580 

1,590 

1,610 

1,630 

1,640

1,630 

1,560 

1,550 

1,570 

1,590

1,620 

1,640 

1,650 

1,590 

1,570

1,580 

1,600 

1,620 

1,640 

1,660

1,590 

1,560 

1,570 

1,590 

1,620 

1,620

Mean

1,468 

1,625 

1,654

1,590

1,658 

1,663 

1,633 

1,643 

1,609 

1,606 

1,622 

1,599 

1,595

1,614

Sept.

1,590 

1,560 

1,560 

1,580

1,620

1,630 

1,630 

1,620 

1,560 

1,540

1,560 

1,590 

1,610 

1,620 

1,620

1,570 

1,570 

1,570 

1,610 

1,620

1,640 

1,640 

1,590 

1,580 

1,580

1,580 

1,610 

1,620 

1,630 

1,560

Run-off in 

acre-feet

90,250 

96,690 

101,700

1,151,000

101,900 

95,640 

100,400 

97,790 

98,960 

95,560 

99,750 

98,340 

94, 930

1,172,000
34 COLORADO RIVER MAIN STEM

Yuma main canal below Colorado River siphon, at Yuma, Arlz.

Location.- Two gages determine head on Colorado River siphon. At intake, wate^-stage recorder, lat. 32°43'45", long. 114°37'15", in SWiSEi sec. 26, T. 16 S., R. 22 E., San 

Bernardino meridian, on California side of river, 500 feet downstream from Yuma main 

canal wasteway and 3 miles downstream from siphon-drop power plant. At outlet, waterstage recorder in NWiNEi sec. 35, T. 16 S., R. 22 E., San Bernardino meridian, on 

Arizona side of river. Both gages are a quarter of a mile downstream from highway 

bridge over Colorado River at Yuma. Datum of each gage is 100.00 feet (Yuma project 

datum) or 100.54 feet (general adjustment of 1929} above mean sea level, subject to 

correction due to undetermined changes caused by earthquake of May 18, 1940.

Records available.- October 1938 to September 1940.

Remarks.- Records excellent except those below 300 second-feet, which are good. Daily discharge computed from relation between discharge and head on siphon, which is the difference between readings of stage at intake and outlet gages; Records show quantity 

of water delivered to Valley division of Yuma project for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

SO

21 

22 

S3 

24 

S5

26 

27 

28 

29 

SO 

51

Oct.

303 

562 

637 

640 

620

517 

452 

420 

573 

626

617 

585 

566 

486 

440

597 

656 

637 

594 

600

563 

524 

654 

685 

659

642 

617 

576 

482 

622 

631

Hov.

628 

599 

576 

546 

493

588 

636 

642 

614 

600

528 

496 

610 

600

554

514 

489 

476 

426 

552

566 

544 

507 

448 

391

395

538 

576 

510 

478

Dec.

463 

428 

373 

486

521

510 

448 

436 

365 

344

520 

560 

547 

524 

485

368 

349 

532 

554 

520

448 

381 

319 

319 

324

493 

531 

514 

464 

361 

304

Jan.

314 

531 

5S2 

534 

456

336 

314 

505 

531 

521

473 

404 

367 

319 

513

541 

534 

494 

403 

339

309

518 

557 

554 

514

444 

352 

309

519 

557 

544

Peb.

510 

463 

396 

339 

544

560 

528 

507 

496 

404

368 

597 

645 

590 

308

2 

2 

100 

650 

680

664 

641 

498 

373 

324

486 

570 

547 

503

Month

Dot 

Hov

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

uary

11.....................................

7- .....................................

ater year 1939-4

Mar.

475 

463 

432 

540 

606

620 

614 

603 

524 

452

£30 

675 

672 

693 

653

53S 

467 

610 

652 

651

62S 

579 

497 

420 

629

642 

638 

611 

582 

505 

419

Apr.

658 

706 

711 

688 

601

496 

436 

648 

659 

64S

653 

582 

496 

475 

656

685 

6S2 

664 

644 

516

428 

657 

703 

706 

665

554 

324 

403 

632 

656

Seoondfoot-daye

17,783 

16,120 

13,791

187,683

14,188 

13,295 

17,720 

18,032 

17,358 

17,958 

18,041 

18,277 

18,632

201,195

May

58S 

570 

516 

448 

436

654 

6SO 

649 

634

614

539 

43£ 

665 

69S 

688

640 

594 

481 

19 

500

646 

642 

600 

519 

484

471 

628 

651 

625 

544 

503

Majdjmm

685 

642 

560

771

5S2 

680 

693 

711 

698 

728 

706 

701 

701

728

June

457 

395 

628 

680 

656

617 

570 

501 

436 

679

698 

6S5 

670 

626 

537

460 

676 

728 

683 

659

560 

496 

467 

646 

685

688 

678 

631 

570 

496

July

655 

706 

69S 

632 

573

4S2 

471 

562 

659 

664

658 

5S6 

467 

424 

637

653 

642 

567 

470 

363

395 

641 

701 

689 

629

564 

465 

435 

626 

662 

665

Minimum

303 

391 

304

0

309 

2 

419 

324 

19 

395 

363 

419 

454

2

Aig.

629 

574 

479 

442 

631

701 

688 

637 

610 

507

465 

654 

691 

691 

692

634 

527

450 

65S 

680

657 

603 

538

419 

442

64C 

678 

654 

603 

517 

490

Mean

574 

537 

445

514

458 

458 

572 

601 

56C 

59f 

58? 

59C 

621

550

Sept.

454 

619 

686 

686 

646

626 

560 

472 

649 

683

655 

594 

5S8 

564 

541

685 

697 

687 

675 

629

507 

524 

655 

701 

693

696 

678 

599 

507 

676

Run-off in 

acre-feet

35,270 

31,970 

27,350

372,200

28,140 

26,370 

35,150 

35,770 

34,430 

35,620 

35,780 

36,250 

36,960

399,100
COLORADO RIVER MAIN STEM 35

Yuma main canal wasteway at Yuma, Ariz.

Location.- Water-stage recorders on Yuma main canal determining flow to wasteway at gates, 

 lat. 32°44'00", long. 114°37'15", in SWiSEi sec. 26, T. 16 S., R. 22 E., San Bernardino 

meridian, 500 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.

Records available.- October 1928 to September 1940 (1928-38, published as separate table 

in records for Colorado River at Yuma, Ariz.).

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. All 

flow in Yuma main canal wasteway is returned to Colorado River half a mile downstream 

from station on Colorado River at Yuma, and all flow bypasses that station.

Cooperation.- Record of diversions for irrigation from Yuma main canal furnished by Bureau 

of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

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.

167

621

513

640

690

783

908

1,010

S25

787

823

945

994

1,110

1,180

951

914

923

996

980

1,050

1,090

894

865

931

968

983

1,030

1,150

955

979

HOT.

982

1,020

1.040

804

1,150

975

934

966

1,020

1,050

1,110

1,150

1,000

1,030

1,090

1,120

1,150

1,170

1,230

1,070

1,070

1,110

1,130

1,200

1,270

1,280

1,100

1,040

1,140

1,180

-

Dec.

1,200

1,230

1,300

1,150

1,120

1,140

1,220

1,230

1,020

1,320

1,130

1,090

1,100

1,130

1,180

1,310

1,330

1,090

1,O80

1,140

1,220

1,290

1,360

1,360

1,360

1,160

1,150

1,160

1,210

1,320

1,370

Jan.

1,380

1,110

1,060

1,130

1,210

1,170

1,360

1,170

1,120

1,130

1,200

1,270

1,330

1,380

1,150

1,120

1,140

1,190

1,290

1,360

1,400

1,120

1,080

1,090

1,150

1,240

1,090

1,400

1,120

1,090

1,130

Feb.

1,170

1,220

1,300

1,360

1,100

1,070

1,140

1,170

1,180

1,270

1,310

1,040

965

1,040

1,350

1,690

1,700

1,610

984

944

976

1,030

1,190

1,310

1,360

1,130

1,040

1,100

1,150

-

Month

Calendar year 1939 ......................

Maron. ....................................

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

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

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

JTater year 1939-40 ......................

Mar.

1,200

S77

1,250

1,090

1,010

1,020

1,070

1,O80

1,160

1,230

1,010

943

968

92S

1,020

1,140

1,220

1,020

948

999

1,020

1,070

1,150

1,240

986

958

982

1,020

1,O80

911

1,260

Apr.

945

904

932

962

1,060

1,180

1,240

964

971

1,020

997

1,090

1,180

1,200

937

894

946

976

995

1,150

1,240

924

905

924

985

1,120

1,360

1,270

969

942

-

Seeondfoot-days

27.655

32,583

37,470

391,702

37,180

34,899

32,860

31,182

32,466

32 f 078

31,138

29,134

386,723

May

1,060

1,O80

1,130

902

1,220

939

918

961

986

1,000

1,090

1,230

9O8

902

932

1,000

1,040

1,170

1,640

1,070

926

958

1,010

1,120

1,170

1,180

955

919

930

1,060

1,060

Ha^Hanim

1,180

1,280

1,370

1,600

1,400

1,700

1,260

1,360

1,640

1,220

1,300

1, 220

1,150

1,700

June

1.120

1,220

918

890

944

1,020

1,060

1,120

1,200

S94

895

915

960

1,010

843

1,190

907

852

887

931

1,050

1,150

1,190

937

885

912

924

994

1,090

1,170

-

July

938

364

875

988

1,070

1,190

1,200

1,040

' 921

926

962

1,050 iaso

1,250

957

907

958

1..040

1,190

1,300

1,260

942

869

891

1,020

1.100

1,180

Ir 220

957

908

925

iHp^Tflum

167

934

1,020

0

1,060

944

01717 

Off

' 894

902

843

864

848

848

167

Aug.

981

1,060

911

1,220

963

869

890

970

1,020

1,130

1,160

900

846

869

890

9S4

1,110

1,200

927

879

912

990

1,080

1,220

1,220

944

872

906

983

1,100

1,130

Mean

892

1,086

1,209

1,073

1,199

1,203

1,060

1,039

1,047

1,003

1,035

1,004

971

1,062

Sept.

1,140

934

S64

884

964

1,000

1,070

1,150

904

843

905

996

1,010

1,060

1,080

878

863

874

935

991

1,130

1,120

928

879

887

884

932

1,020

1,120

884

-

Run-off in 

ac re-feet

54,350

64,630

74,320

776,900

73,750

69,220

65,180

61,350

64,400

59,660

63,630

61,760

57,790

771,000
36 TRIBUTARIES ABOVE GREEN RIVER

Arapaho Creek below Monarch Lake, Colo.

Location.- Water-stage recorder, lat. 40°18', long. 105°46', In SEi sec. 15, T. 2 N., R.

 75 W., 700 feet dovmstream from Roaring Fork, 2| miles dovmstream from outlet of

Monarch Lake, and 10 miles east of Granby. Datum of gage Is 8,244.30 feet above mean 

sea level (general adjustment of 1929).

Drainage area.- 59 square miles.

Records available.- June 1935 to September 1940.

Extremes.- Maximum discharge during year, 686 second-feet June 2 (gage height, 2.74 feet); 

minimum, 2.5 second-feet Jan. 13.

1934-40: Maximum discharge, 1,380 second-feet June 22, 1938 (gage height, 4.31 

feet), from rating curve extended above 900 second-feet; minimum, that of Jan. 13, 1940.

Remarks.- Records good. Flow partly regulated by Monarch Lake. Small diversions above

 station for Irrigation. Several second-feet diverted around station by power canal 

during summer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

I 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

IS 

19 

SO

Si 

82 

83 

84 

85

26 

27 

28 

89 

30 

31

Oot.

18 

18 

18 

19 

19

20 

20 

20 

20 

21

21 

20 

20 

21 

21

20 

20 

19 

19 

18

17 

16 

15 

14

14

14 

13 

11 

11 

11 

12

lav.

11 

11 

11 

11 

12

13 

13 

13 

11 

12

11 

11 

12 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

10 

11

11 

10 

10 

10 

10

Dec.

9.6 

9.6 

9.6 

9.6 

9.6

9.0 

9.0 

8.4 

8.1 

7.8

8.1 

8.1 

7.8 

7.8 

8.1

8.2 

8.3 

8.2 

8.0 

7.7

7.6 

7.5 

7.5 

7.6 

7.6

7.5 

7.4 

7.4 

7.2 

7.3 

7.7

Jan.

7.9 

7.8 

7.7 

7.8 

7.9

7.7 

7.6 

7.6 

7.6 

7.7

7.6 

7. '6 

«7.6 

7.6 

7.4

7-1 

6.8 

6.8 

6.8 

6.8

6.7 

6.5 

6.4 

6.3 

6.3

6.3 

6.2 

6.1 

6.1 

6.2 

6.4

Feb.

6.5 

6.5 

6.4 

6.4 

6.3

6.3 

6.2 

6.3 

6.3 

6.3

6.3 

6.2 6.1- 

6.0 

5.9

«5.9 

5.9 

5.9 

6.0 

6.1

6.0 

6.0 

5.9 

5.9 

6.0

6.2 

6.2 

6.3 

6.4

Month

Oot 

loi 

Dec

C

Jan 

Pet 

Max

API

Jen 

Jul 

Auj 

Bej

«

alendar year 1939.... ..................

i»rr

atar year 1939-4

liar.

6.4 

6.4 

6.5 

6.5 

6.5

6.4 

6.4 

6.6 

6.9 

7.1

7.0 

6.9 

6.7 

6.6 

6.8

7.0 

7.2 

7.4 

7.7 

8.0

8.6 

8.7 

8.9 

«9.2 

10

12 

11 

11 

10 

10 

11

Apr.

12 

12 

12 

10 

11

11 

11 

11 

11 

10

13 

11 

11 

12 

13

14 

16 

19 

30 

34

42 

50 

58 

61 

63

67 

78 

89 

80 

63

Secondfoot-daya

540 

334 

252.9

29,295.9

218.9 

178.7 

247.4 

935 

7,982 

11,566 

4,140 

1,321 

1,306

29,021.9

May

54 

50 

61 

102 

155

201 

211 

211 

235 

314

339 

354 

350 

283 

269

300 

321 

303 

266 

259

235 

201 

191 

208 

242

276 

332 

342 

396 

437 

484

M&jdUnuni

21 

13 

9.6

592

7.9 

6.5 

12 

89 

484 

638 

242 

142 

63

638

June

611 

638 

594 

514 

558

484 

373 

310 

276 

256

290 

346 

369 

484 

528

453 

441 

392 

380 

384

365 

346 

324 

310 

290

279 

252 

252 

245 

222

July

20S 

228 

242 

218 

158

181 

188 

168 

148 

136

131 

136 

131 

120 

109

104 

112 

191 

184 

142

125 

117 

104 

92 

82

78 

67 

65 

61 

58 

56

U<n<nniiii

11

10 

7.2

6.5

6.1 

5.9 

6.4 

10 

50 

222 

56 

20 

33

5.9

Aug.

3"?

31 

3' 

31

3" 

33 

33 

31 

30

29 

£6 

£5 

£3 

£3

F2 

fl £-1 

f> 

?0

£1ri

f2 £-4 

38

78 

131 

142 ir2

£4 

76

Mean

17.4 

11.1 

8.16

80.3

7.06 

6.16 

7.98 

31.2 

257 

386 

134 

42.6 

43.5

79.3

Sept.

63 

52 

46 

45 

44

40

38 

44 

46 

42

40

38 

38 

39 

38

36 

34 

33 

34 

36

38 

40 

44 

42 

42

48 

54 

56 

58 

58

Run-off in 

acre-feet

1.070 

662 

502

58,120

434 

354 

491 

1,850 

15,830 

22,940 

8,210 

2,620 

2,590

57,550

 Winter discharge measurement made on this day.

lot*.- Stage-discharge relation affected tiy ice Dec. 13 to Apr. 6.
TRIBUTARIES ABOVE GREEN RIVER 3 

Willow Creek near Granby, Colo.

Location.- Water-stage recorder, lat. 40°11', long. 106°00', in NWi fee. 34, T. 3 N.,

 R. 77 W., 100 feet downstream from Gold Run Creek and 7 miles northwest of Granby. 

Datum of gage is 8,240.99 feet above mean sea level (general adjustment of 1929).

Drainage area.- 105 square miles.

Records available.- April 1935 to September 1940.

Extremes.- Maximum discharge during year, 303 second-feet May 13 (gage height, 2.81

 feet); minimum daily, 7.5 second-feet Jan. 29, 30.

1935-40: Maximum discharge, 811 second-feet May 16, 1938 (gage height, 4.49 feet); 

minimum not determined, occurred during period of ice effect.

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

 which are fair. Water diverted above station for irrigation of hey meadows.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

84

85

26

27

28

29

SO

51

Oct.

11

11

11

13

13

13

12

12

14

13

12

12

12

12

11

11

11

11

11

11

11

10

10

11

10

11

11

11

11

10

10

Hov.

11

12

10

10

12

12

11

10

10

9.5

10

11

12

11

11

11

11

11

11

11

12

12

12

11

12

12

12

11

11

11

-

Dec.

11

11

11

11

11

10

10

10

9.0

8.5

9.0

9.0

9.0

8.6

9.0

9.0

9.0

9.0

8.6

8.6

8.5

8.5

8.5

8.6

8.6

8.6

8.6

8.4

8.2

8.4

8.6

Jan.

8.5

8.4

8.2

8.4

8.6

8.5

8.4

8.4

8.5

«8.5

8.5

8.4

8.4

8.4

8.2

8.0

8.0

8.0

8.0

8.0

8.0

7.8

7.8

7.8

7.7

7.6

7.6

7.6

7.5

7.5

7.8

Feb.

7.9

8.2

8.2

8.5

8.6

8.6

8.6

8.7

8.6

8.6

8.5

8.4

8.3

8.2

1)6.1

8.1

8.0

8.0

7.9

7.8

7.8

7.9

8.0

8.0

8.2

8.3

8.4

8.5

8.6

_

-

Month

Hoveniber . .................................

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

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

to.. .....................................

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

Water year 1939-4

Mar.

8.7

8.8

9.0

9.0

9.0

9.0

9.0

9.0

9.5

9.8

9.7

9.5

9.2

9.0

9.3

9.6

10

10

11

12

12

13

15

17

*22

20

16

16

15

15

18

Apr.

18

19

16

16

16

17

16

16

16

15

13

14

14

21

27

29

29

31

42

55

71

82

76

88

104

al!2

a!18

al!2

alOO

a82

-

Seocndf dot-days

353

333.5

284.8

25,019.3

251.0

239.5

369.1

1,385

6j8Y6

3,337 '

949

458

356

15,191.9

May

63

76

139

184

224

240

240

243

248

262

274

281

298

274

260

272

272

255

233

224

238

212

198

191

193

202

224

216

212

214

214

Maximum

14

12

11

539

8.6

8.7

22

118

298

228

51

27

16

298

June

226

228

228

212

204

200

176

153

132

118

107

101

98

96

95

91

86

82

77

75

76

70

66

59

55

51

48

45

43

39

July

49

51

44

43

40

47

37

34

33

31

30

31

27

26

24

24

28

48

49

32

27

26

22

22

19

18

17

18

18

17

17

Minimum

10

9.5

8.2

8.2

7.5

7.8

8.7

13

63

39

17

11

11

7.5

Aug.

16

15

15

14

13

13

13

14

13

12

13

12

11

11

11

11

11

11

12

13

12

16

15

17

20

25

27

26

18

15

13

Mean

11.4

11.1

9.19

68.5

8.10

8.26

11.9

46.2

222

111

30.6

14.8

11.9

41.5

Sept.

13

12

12

13

13

12

11

11

11

11

11

11

11

12

12

11

11

11

11

11

11

11

11

11

11

12

14

13

16

15

Run-off in 

acre-feet

70O

661

565

49,620

498

475

732

2,750

13,640

6,620

1,880

906

706

30,140

 Winter discharge measurement made on this day.

a Ho gage-height record} discharge computed on baals of records for Colorado River at Hot Sulphur Springs. *^ 

Hote.- Stage-discharge relation affected by loe Oct. 30, 31, HOT. 10 to Mar. 26.
38 TRIBUTARIES ABOVE GREEN RIVER

Fraser River near Winter Park, Colo. 

(Formerly published as Fraser River near West Portal, Colo.)

Location.- Water-stage recorder, lat. 39°54'00", long. 105°46'35n , In NE£ sec. 4, T. 2

S., R. 75 W., It miles northwest of Winter Park and 2i miles downstream from point

of diversion for Moffat tunnel. 

Drainage area.- 28 square miles. 

Re&pras available.- September 1910 to September 1930, and September 1933 to September

1940 in reports of Geological Survey. September 1910 to September 1940 In reports

of State engineer. Records since June 9, 1936, equivalent to earlier records If

that part of flow diverted through Moffat tunnel from Fraser River Is added to flow

past station. 

Average discharge.- 30 years, 43.2 second-feet (Including diversion through Moffat

tunnel). 

Extremes.- Maximum discharge during year, 35 second-feet Apr. 19 (gage height, 0.71

feet); minimum dally, 3.4 second-feet Oct. 3.

1910-40: Maximum discharge, 820 second-feet June 13, 1918 (gage height, 2.9

feet), from rating curve extended above 410 second-feet: minimum, 2 second-fe3t Mar.

30, 1912. 

Remarks.- Records good except those for periods of Ice effect, which are fair. Transmountaln diversion through Pioneer bore of Moffat tunnel to Soutfa Platte River Basin

since June 9, 1936. Small diversion through Berthoud Pass. 

Cooperation.- Records of flow diverted through Moffat tunnel furnished by State engineer.

Discharge, in second-feet, water year October 1939 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

25

24

25

26

27

28

29

30

51

Got.

3.7

3.V

3.4

4.1

4.9

4.9

4.9

4.9

5.6

5.6

5.6

5.6

5.6

5.6

5.2

5.2

5.2

5.2

4.9

4.9

4.9

4.9

4.9

4.9

4.9

5.2

5.2

4.9

5.2

4.9

4.9

Nov.

4.9

4.9

4.6

4.4

4.4

4.6

4.4

4.1

4.1

4.1

4.1

4.1

3.9

3.9

6.5

11

10

9.8

9.8

9.2

8.6

8.4

8.2

8.0

7.7

V.8

8.0

V.6

V.4

7.2

Dec.

7.4

7.6

7.4

7.2

7.0

6.7

»6.9

7.8

8.4

8.4

8.0

7.4

7.2

7.4

7.8

8.2

8.2

7.6

7.4

7.4

7.4

7.2

7.6

7.4

7.6

7.8

7.6

7.4

7.4

7.6

8.0

Month

Calendar year 1939.

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

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

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

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

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

Water year 1939-40.

Jan.

8

8

9

9

9

8

8

8

8

9

9

9

9

*8

8

8

8

7

7

8

8

7

8

8

8

9

9

9

8

8

8

.6

.6

.0

.2

.0

.6

.6

.6

.8

,2

.0

.0

.0

.8

.2

.4

.0

.5

.4

.2

.6

.5

.0

.1

.6

.0

.1

.1

.6

.6

.2

Feb.

8.

8.

8.

7.

7.

7.

7.

7.

7.

7.

8.

8.

8.

«8.

8.

7.

7.

7.

8.

8.

8.

9.

9.

9.

8.

8.

8.

9.

9.

_

-

2

2

2

8

8

8

8

8

8

5

6

4

2

0

0

6

3

8

4

8

6

1

4

0

9

6

8

2

0

Mar8.7

8.0

7.6

7.4

7.8

8.6

8.6

8.6

8.4

8.8

8.0

7.1

7.1

7.1

7.2

7.4

7.6

7.8

7.8

7.8

7.2

7.8

8.6

9.9

10

10

10

9.5

7.8

6.8

9.1

Apr.

16

17

15

13

14

17

16

16

16

14

14

16

20

23

30

30

27

31

31

26

26

22

16

13

14

16

17

14

12

9.9

Observed

Secondfoot-daya

153.5

195.7

234.4

4,422.8

265.1

240.6

254.1

561.9

401

384.3

215.2

132.9

141.7

3,180.4

Maximum

5.6

11

8.4

156

9.2

9.4

10

31

15

18

10

6.5

6.5

31

Minimum Mean

3.4 4.95

3.9 6.52

6.7 7.56

3.0 12.1

7.4 8.55

7.3 8.30

6.8 8.20

9.9 18.7

11 12.9

8.2 12.8

4.4 6.94

3.7 4.29

3.9 4.72

3.4 8.69

May

12

13

14

13

13

13

13

14

13

13

13

12

14

12

11

12

14

15

12

12

14

12

12

12

12

13

15

14

13

13

13

Run-off

(acrefeet)

304

388

465

8,770

526

477

504

1,110

795

762

427

264

281

6,300

June

14

14

15

15

16

18

17

17

16

15

14

14

13

13

12

12

12

12

12

12

14

12

11

10

9.9

9.5

9.5

8.6

8.2

8.6

-

July

9.1

10

9.5

9.1

9.1

8.6

7.8

7.5

7.2

7.2

7.5

7.2

6.5

6.5

7.5

7.2

7.5

9.1

7.8

6.2

5.6

5.6

5.2

5.2

4.9

4.9

5.6

5.9

5.2

4.6

4.4

Diversion 

by

Moffat 

Tunnel 

, acre-feet)

522

226

0

15,280

0

0

0

197

3,220

6,610

2,530

1,030

904

15,240

Aug.

4.4

4.1

4.1

3.9

3.9

3.9

4.1

4.1

4.1

3.9

3.9

3.9

3.9

3.7

3.7

3.7

3.7

3-7

3.9

3,9

4,6

5-2

4.6

5.2

6.6

5-e

5.2

4,9

4.4

4.1

4.1

Sept.

4.1

3.9

4.1

4.6

4.4

4.1

4.1

4.1

5.2

5.9

4.6

4.1

4.6

4.6

4.4

4.4

4.4

4.6

4.9

4.9

4.9

4.6

4.4

4.4

4.4

6.5

6.2

5.2

5.2

5.9

Adjusted for 

diversion

Run-off 

(acre-feet)

826

614

465

24,050

526

477

504

1,310

4,020

7,370

2,960

1,290

1,180

21.54C

Mean 

(secondfeet)

13.4

10.3

7.56

33.2

8.55

8.30

8.20

22.0

65.4

124

43.1

21.1

19.9

29.7

Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Oct. 28, 30, Hov. 10 to Jan. 26, Feb. 11 to Mar.17.
TRIBUTARIES ABOVE GREEN RIVER 3! 

Fraser River at Granby, Colo.

Location.- Water-stage recorder, lat. 40°05', long. 105°57', In sec. 1, T. 1 N., R. 76s

 W., Just downstream from Tenmlle Creek, half a mile southwest of Granby, and 2t miles 

upstream from mouth.

Drainage area.- 285 square miles.

Records available.- August 1904 to September 1909, September 1937 to September 1940.

 Records since June 9, 1936, equivalent to earlier records If flow diverted through 

Moffat tunnel Is added to flow past station.

Extremes.- Maximum discharge during year, 517 second-feet June 3 (gage height, 1.88 

feet); minimum dally, 27 second-feet Aug. 18, 19.

1904-9, 1938-40: Maximum dally discharge, 1,860 second-feet June 14, 15, 1906; 

minimum dally, 25 second-feet Sept. 22, 1939.

Remarks.- Records excellent except those for periods of Ice effect, which are fair, and

 those July 15 to September 30, which are good. Transmountaln diversion through 

Pioneer bore of Moffat tunnel to South Platte River Basin since June 9, 1936.

Cooperation.- Records of flow diverted through Moffat tunnel furnished by State engineer.

Discharge, in second-feet, water year October 1939 to Septembe" 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14ie

16

17

18

10

20

21

22

23

24

26

26

27

28

20

30

31

Oct.

31

33

31

35

41

41

40

37

49

47

44

41

40

40

37

37

36

35

35

35

35

35

34

34

31

34

36

35

37

36

38

Nov.

38

37

36

35

39

41

37

36

35

35

35

36

37

38

39

39

39

38

40

41

42

43

43

42

41

41

43

43

43

42

Dec.

44

47

46

46

46

45

#45

44

44

44

42

41

42

43

44

44

43

41

41

42

41

39

40

38

40

41

41

39

41

43

45

Month

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

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

Calendar year 1939

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

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

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

Water year 1939-40

Jan.

45

43

43

43

44

43

41

41

39

39

39

37

36

36

35

*36

35

34

33

34

34

33

34

36

36

37

36

38

39

39

40

Feb.

41

4

4

4

0

0

0

39

38

2

r

9

9

9

39

38

2

;

6

4

3

32

*34

;

3

3

5

35

34

2

4

6

8

1

41

42

4

4

4

3

4

6

Mar47

4

4

4

6

5

4

46

47

4

4

4

6

6

7

48

48

4

4

4

6

4

4

46

47

4

4

E

9

L8

0

54

#58

£

i

T

>8

«

0

84

92

£

r

e

e

0

0

1

6

91

Apr.

Ill

106

79

81

87

93

75

70

SI

79

71

64

77

113

157

145

104

126

190

232

242

203

142

151

145

154

173

170

142

129

-

Deserved

Seoondfoot-days

1.150

1,174

1,322

43,313

1,177

1,102

1,725

3,792

9,183

8,001

2,306

1,275

1,522

33,729

Maximum

49

43

47

815

46

46

92

242

400

436

183

75

79

436

Minimum

31

35

38

25

33

32

44

64

118

77

29

27

37

27

Mean

37.1

39.1

42.6

119

38.0

38.0

55.6

126

296

267

74.4

41.1

50.7

92.2

May

US

134

164

190

221

22S

254

239

235

2SO

338

361

390

342

324

33S

365

3SO

304

288

380

320

273

261

269

296

400

375

365

361

390

Run- off

acrefeet)

2,280

2,330

2,620

85,910

2,330

2,190

3,420

7,520

18,210

15,870

4,570

2,530

3,020

66,890

June

420

431

436

400

420

431

365

338

304

254

246

250

254

288

292

284

273

254

228

221

304

300

207

170

132

134

116

91

81

77

-

July

89

14S

145

140

121

134

91

75

66

57

61

70

52

44

39

46

75

183

137

87

71

62

43

34

34

30

29

33

36

39

35

Diversion

by

Moffat 

Tunnel 

(acre-feet)

1,090

401

0

31,130

0

0

0

232

6,080

12,170

5,320

2,210

1,890

29,390

Aug.

2S

31

34

36

35

33

35

37

40

39

46

37

35

31

30

30

29

27

27

35

40

55

43

46

75

71

68

66

52

44

40

Sept.

37

37

37

54

47

43

41

39

47

64

55

47

44

49

47

44

44

47

52

79

54

51

49

46

44

57

79

62

62

64

-

Adjusted for

diversion

Run- off 

(acre-feet)

3,370

2,730

2,620

117,000

2,330

2,190

3,420

7,750

24,290

28,040

9,890

4,740

4,910

96,280

Mean 

(secondfeet)

54.8

45.9

42.6

162

38.0

38.0

55.6

130

395

471

161

77.0

82.6

133

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by loe Oct. 31 to Hov. 2, Hov. 10 to Mar. 28.
40 TRIBUTARIES ABOVE GREEN RIVER

Vasquez Creek near Winter Park, Colo. 

(Formerly published as Vasquez Creek near West Portal, Colo.)

Location.- Water-stage recorder, lat. 39°55'15", long. 105°47'05", in NHi sec. 33, T. 1 

S. R. 75 W., a quarter of a mile upstream from mouth, li miles downstream from 

Moffat tunnel diversion, and 2J miles northwest of Winter Park. Datum of gage is 

8,768.48 feet above mean sea level (Bureau of Public Roads bench mark).

Drainage area.- 27.8 square miles.

Records available.- June 1907 to October 1909, August 1934 to September 1940. Records

 prior to May 26, 1937, equivalent to earlier records if that part of flow diverted 

through Moffat tunnel from Vasquez Creek is added to flow past station.

Extremes.- Maximum discharge during year, 19 second-feet Apr. 22 (gage height, 1.12

 feet); minimum daily, 0.1 second-foot June 4, 5, 8-27, 29, 30, July 3, 7-17, 21-24.

1934-40: Maximum discharge, 396 second-feet June 15, 1935 (gage height, 2.64 

feet); minimum daily, that of June 4, 5, 8-27, 29, 30, July 3, 7-17, 21-24, 1940.

Remarks.- Records good except those for periods of Ice effect, which are fair. Trans-

 mountain diversion through Pioneer bore of Moffat tunnel to South Platte River Basin 

since May 26, 1937.

Cooperation.- Records of flow diverted through Moffat tunnel furnished by State engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

Z

4

5

6

7

8

9

10

11

12

13

14

16

16

17

16

19

20

21

22

23

24

26

26

27

28

26

30

31

Oct.

1.6 i.'e

1.6

2.2

2.2

2.2

2.2

2.2

2.9

2.2

1.3

1.0

2.6

2.7

2.7

2.6

2.6

2.5

2.6

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.6

2.2

2.2

2.1

2.9

Nov.

2.7

2.7

2.6

2.3

2.5

2.5

2.6

2.3

2.3

2.6

2.7

2.7

2.5

3.8

7.6

9.0

8.6

8.4

8.0

8.0

7.8

7.6

7.2

7.0

6.8

7.0

7.0

6.4

6.0

5.6

-

Dec.

6.8

6.8

6.6

6.2

6.0

4.8

6.0

6.2

6.6

6.8

5.4

5.2

4.8

4.8

6.0

5.4

6.4

6.0

4.8

4.7

4.7

4.6

4.7

4.6

4.7

4.6

4.6

4.4

4.5

4.7

4.8

Month

Calendar year 1939.

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

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

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

Water year 1939-40.

Jan.

6.0

4

B

5

.9

.1

.2

5.2

5.0

4

4

E

.8

.8

.0

6.2

4.8

4

4

4

.8

.8

.5

4.2

«4.2

4

1

3

.1

.9

.9

4.2

4.7

4

4

4

.2

.3

.6

6.0

6.2

E

£

£

B

.4

.4

.3

.2

5.2

Feb.

6.

6.

6.

4.

4.

5.

5.

5.

5.

4.

6.

6.

5.

*5.

6.

4.

4.

5.

6.

6.

6.

6.

6.

6.

5.

5.

6.

6.

6.

2

1

0

9

9

0

0

0

0

9

2

3

2

1

0

8

8

0

4

4

4

8

8

8

6

6

8

9

0

Mar.

6.

6.

5.

6.

6.

6.

6.

5.

6.

5.

6.

6.

6.

6.

6.

6.

6.

6.

6.

5.

5.

6.

6.

6.

6.

6.

6.

6.

6.

6.

6.

8

3

1

4

4

7

4

4

7

7

7

7

8

4

2

6

7

7

7

7

7

7

7

7

0

0

0

3

JS

3

3

Apr.

7.8

7.8

7.0

7.4

7.4

7.4

6.7

7.8

7.0

6.7

8.2

8.9

8.5

8.6

9.3

8.9

8.6

9.3

11

16

16

14

13

14

12

12

7.0

6.3

6.1

6.0

Observed

Secondfoot-days

68.4

164.4

166.1

2,904.0

148.1

162.9

177.1

274.5

116.2

4.2

27.1

81.4

76.1

1,434.6

Maximum

2.9

9.0

6.8

66

6.4

6.0

6.3

16

8.2

.8

4.0

S

IT I

3.4

16

Minimum

1.0

2.3

4.4

.2

3.9

4.8

6.1

6.1

.6

.1

.1

2.0

2.0

.1

Mean

2.21

6.16

5.00

7.96

4.78

5.27

5.71

9.16

3.72

.14

.87

2.63

2.64

3.92

May

6.7

6.7

7.8

8.2

7.8

7.0

7.0

7.0

5.7

6.7

6.4

6.7

6.0

6.4

4.0

2.2

1.8

2.5

1.3

1.0

1.3

1.3

1.1

1.0

1.0

1.0

1.1

1.0

1.0

.9

.6

Run-off

acrefeet)

136

306

308

5,760

294

303

351

644

228

8.3

54

161

161

2,840

June

0.2

.8

.2

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

July

0.2

.2

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.4

2.9

1.3

.1

.1

.1

.1

.2

.8

3.2

4.0

4.0

4.0

3.7

Diversion 

by

Moffat 

Tunnel 

(acre-feet)

667

176

0

16,860

0

0

0

36

2.860

5.670

2,790

1,170

986

14,150

Aug.

3.r

3.r

3.P

2.5

2.V

2.6

2.5

2.7

2.7

2.6

2.5

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2.0

2.6

2.9

3.2

2.7

3.2

3.7

3.2

3.2

2.9

2.7

2.2

2.2

Sept.

2.2

2.2

2.2

2.9

2.7

2.6

2.6

2.6

2.6

2.9

2.5

2.2

2.5

2.5

2.6

O O

2.5

2.5

2.7

2.9

2.5

2.2

2.0

2.0

2.0

3.2

3.4

2.9

2.9

2.9

-

Adjusted for 

divers! on

Run-off 

(acre-feet)

705

481

308

21,610

294

303

361

679

3,090

6,580

2,840

1,330

1,140

17,000

scan 

(secondfeet)

11.4

8.09

6.00

29.9

4.78

6.27

6.71

9.74

60.2

93.7

46.3

21.7

19.2

23.4

 Winter discharge measurement made on, this day.

Hote.- Stage-discharge relation affected by loe Oct. 27 to Mar. 2, Mar.
TRIBUTARIES ABOVE OREEN RIVER 41

St. Louis Creek near Fraser, Colo.

Location.- Water-stage recorder, lat. 39°54'45", long. 105°52'35", In sec. 34, T. 1 3. 

R. 76 W., a third of a mile downstream from confluence of East ard West Branches 

and 44 miles southwest of Fraser.

Drainage area.- 32.8 square miles.

Records available.- August 1934 to September 1940.

Extremes.- Maximum discharge during year, 175 second-feet June 2 (gage height, 2.02 

reet); minimum dally, 6.0 second-feet Apr. 12.

1934-40: Maximum discharge, 353 second-feet June 15, 1935 (ge.ge height, 2.58 

feet), from rating curve extended above 210 second-feet; minimum, 3.2 second-feet 

Apr. 9, 1935 (gage height, 0.75 foot).

Remarks.- Records good except those for May 1-31 and those for periods of Ice effect, 

which are fair. No regulation or diversion.

Discharge, in second-feet, water year October 1939 to September 1940

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.

IS 

17 

17 

18 

19

19

17 

IS 

19 

17

17 

17 

17 

17 

17

16 

16 

15 

14 

14

14 

14 

13 

14 

13

13 

12 

11 

14 

11 

13

HOT.

13 

14 

13 

13 

14

14 

13 

- 13 

14 

14

14 

14 

14 

13 

13

12

11 

11 

11 

11

1O 

10 

9.5 

9.2 

9.2

9.2 

9.0 

8.S 

S.4 

S.O

Dec.

7.8 

7.S 

7.O 

6.8 

6.4

6.2 

6.4 

6.S 

7.2 

7.S

7.2 

7.0 

7.O 

7.0 

7.2

7.2 

7.O 

6.8 

6.6 

6.6

6.6 

6.6 

6.6 

6.S 

6.8

6.S 

6.8 

7.0 

6.8 

6.7 

7.5

Jan.

S.o 

8.5 

9.0 

9.O 

9.O

8.5 

8.0 

7.5 

6.4 

6.4

6.7 

7.0 

7.0 

7.5 

7.5

7.0 

7.0 

6.8 

6.6 

7.5

7.5 

7.5 

7.5 

7.5 

9.0

9.0 

9.0 

9.0 

8.6 

8.2 

7.S

Feb.

7.8 

8.0 

8.0 

8.0 

8.0

8.0 

S.O 

S.O 

8.0 

7.5

7.O 

7.5 

7.5 

7.5 

8.0

S.O 

7.6 

8.0 

6.7 

6.7

6.7 

.0 

.0 

.0 

.O

.O 

.5 

.5

S.5

Month

Oct 

Ho-v 

Dec

C

Jan 

Feb 

Mar 

Apr 

Hay 

Jun 

Jul 

Au« 

Sep

«

alendar year 193

11.....................................

ater year 1939-4

Mar.

8.0 

S.O 

S.O 

6.6 

6.8

7.5 

S.O

e.5 

s.o

8.0

s.o

7.4 

7.0 

7.O 

7.0

7.6

s.e

8.5 

8.5 

8.0

7.5 

7.5 

S.5 

S.O 

9.0

8.0 

8.0 

7.5 

7.5 

7.5 

S.5

Apr.

9.5 

9.0 

8.5 

8.0

S.E

8.5 

8.5 

7.5 

7.5 

7.5

6.7 

6.0 

S.5 

10

11

10 

9.5 

12 

14 

17

17 

15 

15 

16 

16

19 

23 

19 

15

14

Seoondfoot-days

4S1 

350.3 

214.8

12,062.1

241.5 

219.0 

242.4 

356.7 

1,495 

3,143 

1,533 

621 

591

9,488.7

May

14 

2O 

28 

33 

35

37 

3S 

37 

41 

46

52 

55 

5S 

47 

50

54 

55 

46 

45 

46

45 

43 

43 

45

47

52 

62 

63 

74 

S4 

100

Maximum

19 

14 

7.8

202

9.0 

8.5 

9.0 

23 

1OO 

141 

81 

26 

30

141

June

122 

134 

141 

136 

139

113 

102 

96 

89

S7

91 

96 

1O7 

118

113

111 

113 

109 

109 

115

118 

107 

1OO 

93 

89

S6 

79 

78 

75

72

July

71 

75 

81 

79 

69

65 

62 

58 

56 

53

53 

52 

5O 

47 

46

47 

52 

56 

50 

44

42 

39 

38 

36 

34

32 

30 

30 

30 

29 

27

Minimum

11 

8.0 

6.2

6.2

6.4 

6.7 

6.6 

6.0 

14 

72 

27 

14 

13

6.0

Aug.

25 

24 

23 

22 

22

22 

21 

20 

2O 

2O

2O

18 

17 

16 

16

16 

16 

14 

16 

19

21 

22 

18 

23 

26

25 

24 

21 

19 

18 

17

Mean

15.5

11.7 

6.93

33. O

7.79 

7.55 

7.82 

11.9 

48.2 

105 

49.5 

20.0 

19.7

25.9

Sept.

16 

13 

19 

24 

18

17 

18 

17 

18 

22

18 

16 

18 

18 

19

17 

17 

16 

19 

24

20 

19 

18 

18 

19

30 

29 

26 

24 

24

Run-off in 

acre-feet

954 

695 

426

23,940

479 

434 

481 

70S 

2,970 

6,230 

3,040 

1,230 

1,170

18,820

Hote.- Stage-discharge relation affected by ice Oct. 28, 30, 31, HOT. 1, 3. 4, HOT. 7 to Dec. 29, 

"""" 19, 29-31, Feb. 1, 2, 17, Mar. 4, 5, 12-16, Apr. 12.
42 TRIBUTARIES ABOVE GREEN RIVER

Ranch Creek above forks, near Fraser, Colo.

Location.- Water-stage recorder, lat. 39°56'30", long. 105°44'00", in SWi sec. 24, T. 

IS., R. 75 W., 0.8 mile upstream from North Fork and 4 miles east of Fraser.

Drainage area.- 3.8 square miles.

Records available.- April 1937 to September 1940.

Extremes.- Maximum discharge during year, 46 second-feet June 4 (gage height, 1.95 feet); 

minimum dally, 1.1 second-feet Oct. 28, 30, probably less during period of no record. 

1937-40: Maximum discharge, 67 second-feet June 21, 1938 (gage height, 3.45 feet); 

minimum dally, 0.4 second-foot Apr. 1-3, 10, 11, 16, 17, 19, 20, 1939.

Remarks.- Records fair. No diversion or regulation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

SB 

29 

30 

SI

Oct.

1.8 

1.8 

1.8 

1.7 

1.7

1.6 

1.4 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.4 

1.4

1.3 

1.3 

1.3 

1.3 

1.2

1.2 

1.3 

bl.l

1.4 

bl.l 

bl.2

Nov.

bl.3 

1.3 

1.3

Dec. Jan. Peb.

Month

Oot 

Nov 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

alendar year

11 23-3

ater year

Mar. Apr.

2.6 

2.3 

2.3

2.8 

3.3 

2.8 

2.3 

2.3

Seoondfcct-days

45.9

_

20.7 

278.2 

684 

251.2 

93.7 

83.0

-

May

2.3 

2.6 

3.4 

4.3 

4.5

4.9 

5.4 

5.6 

6.1

7.5

9.6 

10 

9.3 

8.0 

8.3

10 

11 

12 

8.9 

8.6

8.0 

7.7 

8.3 

8.3 

8.6

10 

12 

13 

16 

19 

25

Maximum

1.8

_

3.3 

25 

33 

14 

4.5 

3.3

-

June

28 

30 

30 

32 

33

28 

24 

21 

18 

18

18 

19 

24 

29 

29

29 

27 

25 

24 

24

24 

21 

20 

18 

17

16 

16 

15 

14 

13

July

14 

14 

13 

12 

12

11 

10 

10 

9.6 

9.3

8.9 

8.3 

8.0 

7.5 

6.9

7.2 

9.6 

8.9 

8.0 

7.2

6.4 

6.1 

5.8 

5.4 

5.1

4.9 

5.1 

4.7 

4.5 

4.0 

3.8

II^Ti \TBTBB

1.1

_

2.3 

2.3 

13 

3.8 

2.6 

2.5

-

Aug.

3.4 

3.3 

3.1 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

2.8 

2.6 

2.6

2.6 

2.6 

2.6 

2.6 

2.8

2.8 

3.0 

2.6 

3.4 

4.5

3.6 

3.6 

3.3 

3.1 

3.0 

2.8

Mean

1.48

-

2.69 

8.97 

22.8 

8.10 

3.02 

2.77

-

Sept.

2.8 

2.8 

3.0 

3.0 

2.8

2.6 

2.5 

2.5 

2.8 

3.1

2.8 

2.6 

2.8 

2.8 

2.6

2.6 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2.5 

2.5

3.3 

3.1 

3.1 

3.1 

3.1

Km-off in 

a'jre-feet

91

-

41 

552 

1,360 

498 

186 

165

-

b Stage-discharge relation affected by ice.
TRIBUTARIES ABOVE GREEN RIVER / 

Ranch Creek near Fraser, Colo.

Location.- Water-stage recorder, lat. 39°55'15", long. 105 0 47'05", In NEi sec. 22, T. 1 

S., R. 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 1940.

Extremes.- Maximum discharge during year, 139 second-feet June 4 (gage height, 2.40 

feet); minimum dally, 2.8 second-feet Feb. 8 to Mar. 9.

1934-40: Maximum discharge, 299 second-feet June 15, 1935 (gage height, 3.37 

feet); minimum dally, 1.5 second-feet (estimated), Feb. 3-7, Mar. 18-21, 1935.

Remarks.- Records good except those for periods of Ice effect, which are fair. No 

diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

4.8 

4.9

5.0 

4.9 

5.0 

5.7 

5.4

5.5 

5.4 

5.2 

5.2 

5.0

4.9 

4.8 

4.8 

4.8 

4.6

4.4 

4.4 

4.4 

4.4 

4.3

4.4 

4.6 

4.0 

5.4 

4.0 

4.5

HOT.

5.2 

4.9 

5.0 

4.8 

4.8

4.9 

5.0 

4.5 

4.1 

4.0

3.9 

4.1 

4.1 

4.1 

4.0

3 9

sis

3.7 

3.7 

3.8

3.9 

3.8 

3.8 

3.9 

3.8

4.2 

4.2 

4.0 

3.9 

4.2

Dec.

4.4 

4.2 

4.2 

4.2 

3.9

3.8 

«3.8 

3.9 

4.0 

4.0

3.9 

3.8 

3.7 

3.7 

3.7

3.8 

3.9 

3.8

3.8 

3.7

3.7 

3.7 

3.7 

3.7

3.7

3.7 

3.6 

3.6 

3.6

3.7 

3.7

Jan.

3.7 

3.8 

3.9 

3.8 

3.7

3.8

3.7 

3,6 

3,5 

3.4

3.3 

3.3

3!4 

3.4

3.3 

3.3 

3.3 

3.3 

3.2

3.2 

3.1 

3.0 

3.0 

3.0

3.0 

3.0 

3.1 

3.1 

3.0 

3.0

Feb.

2.9 

2.9 

2.9 

2.9 

2.9

2.9 

2.9 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

2.8 

2.8

2»8 

2«8 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

2.8

Month

Dot 

Hov 

Dec

0

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jill 

Aug 

Sep

W

alendar year 193

ater year 1939-40......................

Mar.

2.8 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

2.8 

2.9

3.0 

2.9 

2.9 

2.9 

2.9

2.9 

3.0 

2.9 

2.9 

2.9

3.0 

3.0 

3.1 

3.2 

3.5

3.4 

3.4 

3.4 

3.3 

3.4 

3.8

Apr.

4.2 

4.3 

4.0 

4.2 

4.3

4.3 

4.2 

4.2 

4.2 

4.E

4.2 

4.2 

4.6 

6.1 

6.9

6.9 

5.4 

6.5 

8.5 

11

12 

11 

11 

11 

12

14 

18 

15 

12 

11

Secondfoot-days

147.3 

126.0 

118.6

6,378.6

103.5 

81.9 

93.8 

233.4 

1,371 

2,078 

575 

259.5 

235.9

5,423.9

May

11 

13 

18 

22 

24

28 

32 

34 

38

47

55 

58 

57 

53 

55

58 

63 

56 

53 

45

39 

36 

36 

36 

39

44 

52 

54 

61 

70 

84

Maximum

5.7 

5.2 

4.4

132

3.9 

2.9 

3.8 

18 

84 

108 

33 

12 

10

108

June

97 

106 

108 

108 

108

97 

84 

76 

66 

65

64 

66 

75 

84 

81

79 

74 

67 

65 

63

69 

59 

53

48 

44

41 

37 

34 

31 

29

July

29 

33 

29 

26 

25

24 

20 

19 

18 

18

17 

16 

15 

16 

14

14 

21 

26 

22 

19

17 

16 

16 

15 

14

14 

14 

13 

12 

12 

11

Mlninmm

4.0 

3.7 

3.6

3.5

3.0 

2.8 

2.8 

4.0 

11

11 

6.3 

6.5

2.8

Aug.

10 

10 

9.8 

9.5 

10

9.2 

9.2 

9.0 

8.2 

8.2

8.0 

7.5 

7.3 

7.1 

7.1

6.7 

6.7 

6.3 

6.7 

7.1

8.5 

9.5 

6.9 

8.2 

12

10 

10 

9.0 

7.8 

7.3 

6.7

Mean

4.75 

4.20 

3.83

17.5

3.34 

2.82 

3.03 

7.78 

44.2 

69.3 

18.5 

8.37 

7.86

14.8

Sept.

6.7 

6.5 

6.7 

7.8 

6.7

6.5 

7.1 

6.9 

8.0 

10

8.0 

7,3 

7.8 

8.0 

7.5

7.1 

7.3 

7.8 

8.5 

8.5

7.8 

8.8 

8.0

7.3 

7.3

9.5 

9.8 

8.5 

9.0 

9.2

Run-off in 

acre-feet

292 

250 

235

12,650

205 

162 

186 

463 

2,720 

4,120 

1,140 

515 

468

10,760

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Oct. 28, 30, 31, Nov. 4, Nov. 7 to Jan. 5.
44 TRIBUTARIES ABOVE GREEN RIVER 

Ranch Creek near Tabernash, Colo.

Location.- Water-stage recorder, lat. 39°59'55", long. 105°49'10", in sec. 6, T. 1 S., R. 

75 W., a quarter of a mile upstream from Meadow Creek and li miles east or Tabernash.

Drainage area.- 50.7 square miles.

Records available.- September 1934 to September 1940.

Extremes.- Maximum discharge during year, 250 second-feet June 2 (gage height, 3.37 feet); 

minimum daily, 3.8 seccnd-feet Feb. 14, 17.

1934-40: Maximum discharge, 506 second-feet June 15, 1955 (gage height, 4.40 feet); 

no flow Feb. 15 to Mar. 13, 1937.

Remarks.- Records good except those for periods of Ice effect, which are fair. Several 

small diversions above station for Irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

S3. 

SS 

23

24 

25

26 

27

28 

29 

30 

31

Oct.

6.4 

6.4 

6.0 

7-2 

8.5

9.0 

9.0 

9.0 

12

10

10 

9.5 

10 

10 

10

9.5 

9.5 

10 

9.5

7.6

7.6 

8-0 

9.0 

9.5 

10

12 

12 

10 

13 

10 

12

HOT.

12 

14 

14 

13 

15

17 

15 

15

17 

16

16 

17 

15 

15 

14

14 

13 

12

12 

12

12 

11 

11 

11

11

9.8 

9.8 

11

11 

11

Dec.

12 

12

12 

11 

11

11 

11 

11 

11 

12

12 

11 

10 

9.4 

10

11 

10 

9.4 

9.0 

9.6

9.6 

9.0 

8.4 

8.4 

8.4

8.4 

8.2 

7.6 

7.6 

7.8 

8.2

Jan.

8.2 

7.7 

7.8 

8.0 

8-0

7.6 

7-2 

7.4 

7.4 

7.0

6.7 

6.4 

6.6 

6.6 

5.8

*5.9 

6.0

5.6 

4.7 

4.9

4.8 

4.5 

4.8 

5.1 

5.2

5.2 

5.2 

5.2 

5.1 

5.2 

5.2

Feb.

5.2 

5.1 

5.0 

4.8 

4.5

4.3 

4.5 

4.5 

4.5 

4.5

4.2 

4.3 

4.0 

*3.8 

4.0

3.9 

3.8 

3.9 

4.2 

4.3

4.3 

4.3 

4.5

4.7 

4.8

4.8 

4.9 

5.0 

5.2

Konth

Got 

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

fl

alendar year 1939......................

ater year 1939-4

Mar.

5,2 

5.2 

5.1 

5.0 

5.0

5.1 

5.2 

5.4 

5.6 

5.6

5.4 

5.2 

5.4 

5.6 

5.6

5.6 

5.6 

5.8 

6.0 

6.2

«6.6 

6.4 

6.3 

6.8 

8.0

10 

10 

9.6 

9.2 

9.6 

11

Apr.

15 

22 

30 

32 

32

29 

22 

23

17 

19

15 

14

17 

20 

22

25 

26 

31

44 

47

44 

34 

29 

32 

32

33 

42 

42 

32 

29

Secondfoot -days

292.2 

396.6 

307-0

12,713.6

191.0 

129.8 

202.3 

851 

3,370 

3,756 

1,016 

462 

511

11,484.9

May

25

27 

37

62

66 

83 

82 

10C lie

132 

137 

14C 

12C 

124

13] 

144 

13 

121 lie

126 

104

9e

9£ ID'- 

12] 

144 

136 

146 

156 

18£

|tqiylTipin>

13 

17 

22

258

8.2 

5.2 

11 

47 

182 

210 

69 

22 

21

210

June

204 

210 

204 

196 

196

191 

160

147 

123 

115

115 

116 

126 

142 

146

134 

128 

116 

108 

110

132 

113 

91 

81 

73

69 

61 

54 

48 

47

July

49 

69 

59 

50

47

49 

38 

35 

32 

30

32 

30 

26 

25 

24

25 

34 

59 

42 

30

26 

25 

24 

22 

21

20 

19 

20 

19 

19 

16

Minimum

6.0 

9.8

7.6

4.4

4.5 

3.8 

5.0 

14 

25 

47 

16 

8.0 

15

3.8

Aug.

15 

15 

14 

12 

12

12 

13 

13

13 

14

16 

14 

14 

14 

14

16 

16 

16

16 

18

17 

15 

8.0 

14

22

18 

19 

18 

15 

14 

15

Mean

9.43 

13. £ 

9. SO

34.6

6.1<5 

4.48 

6.63 

28.4 

109 

125 

32.8 

14.9 

17.0

31.4

Sept.

15 

15 

15 

18 

15

15 

15 

15 

18 

19

17 

15 

15

17 

17

16 

17 

17 

19 

19

17 

17 

17 

17 

17

20 

21 

18 

18 

20

Run-off in 

acre-feet

580 

787 

609

25,230

379 

257 

401 

1,690 

6,680 

7,450 

2,020 

916 i,olo

22,780

^Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice HOT. 22 to Apr. 3, Apr. 12-15.
TRIBUTARIES ABOVE GREEN RIVER 45

North Fork of Ranch Creek near Fraser, Colo.

Location.- Water-stage recorder, lat. 39°57'00", long. 105°44'20", in northeast corner of 

sec. 23, T. 1 S., R. 75 W., 0.6 mile upstream from mouth and 4 miles east of Fraser.

Drainage area.- 3.4 square miles.

Records available.- April 1937 to September 1940.

Extremes.- Maximum discharge during year, 31 second-feet June 2 (gage height, 1.68 feet); 

minimum dally, 0.4 second-foot Oct. 28, 30, probably less during period of no record.

1937-40: Maximum discharge, 62 second-feet June 21, 1938 (gage height, 2.00 feet), 

from rating curve extended above 40 second-feet; minimum, that of Oct. 28, 30, 1939.

Remarks.- Records good except those for period of ice effect, which are fair. No diversion 

or regulation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

SO

21

82

83

84

85

86

27

88

29

30

31

Oct.

0.9

 8

.8

.9

.9

1

1

1

1-1

.9

.9

.9

.9

.9

.8

 8

.8

.7

.7

.7

.6

.6

.6

.6

.6

.6

.5

b.4

b.6

b.4

b-5

HOT.

0.6

.6

.6

-

_

_

_

_

-

_

-

_

_

-

_

_

_

_

-

_

.

_

_

-

.

-

-

-

-

-

Dec. Jan. Feb.

Month

Maroh. ....................................

April 23-30. ..............................

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

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

Water year

Mar. Apr.

_

_

..

_

-

_

-

.

.

-

_

_

_

_

-

_

-

-

-

-

_

-

l.S1.1 1.1

l.S

2.1

1.9

1.3

1.1

-

Secondfoot-days

23. 4

_

-

_

_

11.2

288 Y

494.5

152 «2

71.4

64.3

-

May

1.1

1.6

2.6

5.6

4.1

4.6

5.4

5.6

6.6

8.2

9.2

9.8

9.5

9.5

9.8

11

IS

11

11

11

11

9.5

9.5

9.5

10

12

13

IS

15

18

20

HqTrtyiim

1.1

_

-

_

_

2.1

20

26

9.5

3.6

2.6

-

June

26

25

22

22

23

20

18

16

15

15

14

15

17

20

20

19

18

17

16

16

18

16

14

IS

12

11

10

9.6

8.8

8.2

-

July

S.6

9.5

6.2

7.2

6.8

6.5

5.7

5.4

5

4.6

4.6

3.9

S.9

S.6

S.5

3.9

6.S

6.6

5.4

4.7

4.1

4.1

S.8

S.6

S.5

3 .3

3.5

S.5

S.2

3.0

2.8

HHnlmmn

0.4

_

-

_

_

1.1 1.1

8.2

2.8

1.6

1.8

-

Aug.

2.7

2.7

2.4

2.S

2.3

2.S

2.4

2.4

2.2

2.2

2.2

1.8

1.7

1.7

1-6

1.7

1.7

1.6

1.8

2.2

2.3

2.4

2.4

2.8

3.6

3.1

3.3

2.8

2.4

2.2

2.2

Mean

0.75

_

-

_

_

1.40

9. SI

16.5

4.91

2. SO

2.14

-

Sept.

2.1

2.1

2.1

2.6

2.1

1.9

1-8

1-8

2.2

2.6

2.1

1.8

2.1

2.1

2.1

1.8

1.9

2.1

2.2

2.2

2.1

2.2

2.1

1.9

2.1

2.6

2.6

2.2

2.4

2.4

-

Run-off In 

acre-feet

46

_

-

_

_

_

28

673

981

302

142

128

-

b Stage-discharge relation affected by Ice-
46 TRIBUTARIES ABOVE GREEN RIVER 

Middle Fork of Ranch Creek near Fraser, Colo.

Location.- Water-stage recorder, lat. 39°56'00", long. 105°44'40", on line between sees. 

 25 and 26, T. 1 S., R. 75 W., 1.6 miles upstream from South Fork and 4.2 miles east 

of Fraser.

Drainage area.- 4.4 square miles.

Records available.- April 1937 to September 1940.

Extremes.- Maximum discharge during year, 110 second-feet June 3 (gage helgtt, 1.75 feet); 

minimum recorded, 0.8 second-foot Oct. 3 (gage height, 0.50 foot), less during period 

of record.

1937-40: Maximum discharge, 124 second-feet June 21, 1938 (gage height, 1.88 feet); 

minimum not determined, occurred during period of ice effect.

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

which are fair. No record Nov. 1 to Apr. 22. No diversion or regulatior.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

1.0 

.9 

.8 

1.1 

1.2

1-2 

1.2 

1.3 

1.4 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.2 

1.2 

1.1 

1.2

1.2 

1.2 

1.0 

1.0 

1.0

1.0 

1.0 

b.9 

bl.O 

b.9 

bl.O

HOT. Dec. Jan. Feb.

Month

Oct 

HOT

Dec

C

Jan 

Pat) 

Mar 

Apr 

Kay 

Jun 

Jul 

*a& 

Sep

W

alendar year

11 23-30

ater year

Mar. Apr.

2.2 

2.2 

1.8

2.3 

2.8 

2.* 

2.3 

2.3

Seoondfoot-days

35.1

_

18.3 

353.6 

801 

180.7 

83.7 

64.6

-

May

2-5 

3.5 

4.0

4.7 

5.8

6.6 

7-2 

8.2 

9.5 

11

15 

14 

14 

14 

13

14 

15 

14 

12 

11

10 

9.6 

10 

10 

11

12 

14 

14 

13 

19 

34

Mqyt imyri

1.4

_

34* 2 .8 

77 

10 

3.6 

2.6

-

June

44 

54 

77 

42 

56

51 

30 

24 

20 

20

20 

20 

24 

29 

28

27 

23 

22 

22 

20

21 

19 

17 

16 

15

14 

13 

12 

11 

10

July

10 

10 

9.6 

8.6 

8.2

7.8 

7.0 

6.5 

6.2 

5.8

5.5 

5.2 

5.0 

4.8 

4.6

4.6 

6.0 

7.0 

6.2 

5.5

4.8 

4.6 

4.6 

4.4 

4.2

4.2 

4.4 

4.3 

4.0 

3.8 

3.4

Minimum

0.8

_

1.8 

2.5 

10 

5.4 

2.2 

2.0

-

Aug.

3.4 

3.2 

3.0 

2.9 

2.9

2.9 

2 9 Q

2 9 

2\B 

2.8

2.6 

2.5 

2.4 

2.3 

2.3

2.3 

2.2 

2.2 

2.3 

2-4

2.8 

2.8 

2-4 

2.8 

3.6

3.2 

3-0 

2.8 

2.5 

2.5 

2.3

Mean

1.13

-

2.29 

11.4 

26.7 

5.85 

2.70 

2.15

-

Sept.

2.5 

2.3 

2.3 

2.5 

2.5

2.2 

2.2 

2.0 

2.3 

2.6

2.2 

2.0 

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

2.5 

2.3 

2.0 

2.0 

2.0

Run-off in 

acre-feet

70

_

36 

701 

1,590 

558 

166 

128

-

b Stage-discharge relation affected by ice.

Hote.- Ho gage-height record Apr. 29 to May 19j discharge computed on basic of weather reoorda

nd records for Ranch Creek near Fraser.
TRIBUTARIES ABOVE GREEN RIVER 47

South Fork of Ranch Creek near Winter Park, Colo. 

(Formerly published as Suiith Fork of Ranch Creek near West Portal, Colo.)

Location.- Water-stage recorder, lat. 39°54'45", long. 105°44'40", In SEi sec. 35, T. 1 

S., R. 75 W., 2.8 miles upstream from mouth and 5 miles northeast of Winter Park.

Drainage area.- 2.4 square miles.

Records available.- November 1936 to September 1940.

Extremes.- Maximum discharge during year, 24 second-feet June 1 (gage height, 1.14 feet); 

minimum recorded, 0.7 second-foot Oct. 1-3 (gage height, 0.12 foot); less during period 

of no record.

1936-40: Maximum discharge, 59 second-feet June 1, 1938 (gage helcht, 1.43 feet); 

minimum, probably between 0.2 and 0.4 second-foot at times during period of ice effect.

Remarks.- Records good. No diversion or regulation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

IB

17

18

19

20

21

22

23

24

25

26

27

282«

30

31

Oct.

0.7

.7

.7

.9

.9

.9

.9

.9

1.0

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

1.1

1.0 1.1

1.0

Hov.

1.0

1.0

.9

_

-

_

_

_

_

-

_

_

-

_

-

_

_

_

_

-

_

-

_

_

-

_

_

-

_

.

-

Dec. Jan. Feb.

Month

April 23-30. ..............................

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

Water year

Mar. Apr.

.

-

-

-

-

_

-

-

-

-

_

_

.

_

-

_

-

-

_

-

.

-

1.4

1.6

1.6

2.1

2.3

2.2

1.7

1.6

-

Secondfoot-days

29.5

-

-

_

-

14.5

97 1

35.5

-

May

1.5

1.7

2.1

3.5

4.6

5.4

6.0

7.3

9.1

12

13

12

13

14

14

14

14

14

13

12

12

12

13

13

13

14

14

14

14

15

Maximum

1.1

-

-

-

2.3

1.5

-

June

16

16

15

14

14

13

13

13

11

10

9.9

9.1

9.4

9.4

9.1

9.1

8.5

8.3

8.3

8.3

9.7

8.0

7.3

6.6

6.2

5.8

5.4

5.3

5.1

5.1

-

July

5.3

5.4

5.1

4.9

4.8

4.4

4.1

4.1

3.6

3.4

3.4

3.1

2.9

2.7

3.0

2.9

3.1

3.9

3.1

2.6

2.3

2.2

2.1

2.0

1.8

1.8

2.0

2.1

1.8

1-7

1.5

Minimum

0.7

-

-

-

1.0

-

Aug.

1.5

1.4

1.3

1.3

1.2

1.3

1.3

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.3

1-3

1.2

1.4

1.5

1.4

1.5

1-4

1.2

1.2

1.2

Mean

0.95

-

-

_

-

1.81

10.4

1.18

-

Sept.

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.5

1.5

1.2

1.2

1.3

1.2

1.1

1.1

1.1

1.2

1.1

1.1

1.2

1.1

1.0

1.0

1.1

1.3

1.?

1.2

1.2

1.2

-

Run-off in 

acre-feet

59

-

-

.

-

29

70

-
48 TRIBUTARIES ABOVE GREEN RIVER

Meadow Creek near Tabernash, Colo.

Location.- Water-stage recorder, lat. 40°02'55", long. 105°46'30", In sec. 15, T. 1 N., R. 

75 W., 5 miles northeast of Tabernash. Prior to Sept. 23, 1940, recorder at site 1,000 

feet upstream at different datum.

Drainage area.- 7.0 square miles.

Records available.- May 1936 to September 1940.

Extremes.- Maximum discharge during year, 148 second-feet May 31 (gage height, 3.22 feet, 

site and datum then in use); minimum mean monthly discharge, 0.4 second-foot during 

February.

1936-40: Maximum discharge, 197 second-feet June 3, 1938 (gage height, 3.67 feet, 

site and datum then in use); probably no flow at times during periods of ice effect.

Remarks.- Records fair. No diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4 

S

6 

7 

8 

9 

10

11 

12 

IS 

14 

IS

16 

17 

18 

19 

SO

21 

22 

83 

24 

25

26 

27 

28 

29 

SO 

51

Oct.

0.7

.5

lio

1.2

1.1 

1.3 

1.3 

1.6 

1.3

1.3 

1.3 

1.2 

1.1 

1.1

1.1 

1.0 

1.0 

1.0 

1.0

.9 

1.0 

1.0 

.8

.B

.8 

.8 

.7 

 8 

.8 

.8

HOT.

O.B 

.9 

.B 

.7 

.B

1.0 

.9

.6 

.8 

.8

.6 

.9 

.9 

.9 

.8

.9 

.8 

.8 

.7 

.8

.8 

.8 

.8 

.8 

.8

.7 

.9 

.8 

.7 

.7

Dec.

0.7 

1.0 

1.0 

.8

.6

.7 

.7 

.8 

«.9 

.8

.8

-7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.6

.6 

.6 

.6 

.6

,6 

.6 

.6 

.6 

.6 

.6

Jan.

 0.5

Feb.

> 0.4

i

Month

Dot 

Hov

Dec

C

Jan 

Feb 

Mar 

Apr May 

Jin 

Jul Aug

Sep

W

uary

ater year 1938-4O. . .

Mar.

 0.5 

(*)

Apr.

0.6 

.7

.7 

.7

.7

.7

.7

'.7 

.7

.7 

.8 

.8 

.8 

.9

1.0 

1.1 

1.3 

1.6 

2.0

«2.6 

2.9 

5.5 

5.9 

5.0

6.0 

6.4 

6.8 

6.0 

5.0

Secondfoot-days

31.1 

24.6 

22.0

3,938.8

15.5 

11.6 

15.5 

66.0 

1,446.8 

1,144 

204.9 

42.4 

55.5

5,079.9

Hay

4.8 

4.6 

5.2 

6.2 

10

15 

21 

25 

50

36

44 

56 

62 

62 

60

58 

58 

58 

61 

58

44 

46 

40 

46 

55

65 

81 

76 

81 

86 

92

HqT^tmim

1.6 

1.0 

1.0

118

6-p 

92 

96 

16 

1.6 

3.2

96

June

96 

81 

74 

6E 

68

55 

47 

42 

32 

28

52 

55

3B 

47 

48

40 

35 

51 

26 

50

51 

25 

19 

17 

15

15 

15 

16 

15 

15

July

15 

16 

12 

9.0 

8.8

8.5 

7.5 

6.6 

6.6 

6.2

6.6 

6.6 

5.4 

5.4 

5.0

5.6 

7.5 

10 

7.8 

6.0

5.2 

5-0 

4.6 

4.4 

4.0

4.4 

5.9 

5.5 

5.4 

2.6 

2.1

Minimum

O.E 

.7 

.6

_

.6 

4.6 

IE 

8.1 

1.1 

1.4

-

Aug.

1.5 

l.E 

1.4 

1.5 

1.5

1.5 

1.6 

l.E 

1.5 

1.4

1.5 

1.5 

1.3 

1.2 

1.2

1.1 

1.1 

1.1 

1.2 

1.2

1.5 

1.6 

l.E 

1.4 

1.5

1.5 

1.6 

1.4 

1.5 

1.5 

1.5

Mean

1.00 

.82 

.71

10.8

.5 

.4 

.5

2. 20 

46.7 

38.1 

6.61 

1.S7 

1.85

8.42

Sept.

1.5 

1.6 

1.6 

1.8 

1.7

1.7 

1.7 

1.6 

1.8 

1.9

1.8 

1.7 

1.8 

1.9 

1.9

1.9 

1.7 

1.6 

1.4

al.4

al.4 

al.4 

l.S 

1.8 

2.0

5.2

5.0 

2.2 

2.4 

2.6

Run-off in 

acre-feet

62 

49 

44

7,810

81 

23 

51 

151 

2,870 

2,270 

406 

84 

110

6,110

«Hinter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of engineers' observations and records for 

Arapaho Creek, below Monarch lake 

Hote.- Stage-discharge relation affected by ice Dec. 7 to Hay 16.
Strawberry Creek near Granby, Colo.

Location.- Water-stage recorder, lat. 40°05'10", long. 105°49'50", in SWiSWi sec. 32, T. 

2 N., R. 75 W., 0.6 mile downstream from Little Strawberry Creek and 6 miles east of 

Granby.

Drainage area.- 12.6 square miles.

Records available.- Hay 1936 to September 1940.

Extremes.- Maximum discharge during year, 48 second-feet May 11 (cage height, 1.66 feet); 

no flow Hov. 5, Sept. 7, and probably at tines during periods of ice effect.

1936-40: Maximum discharge, 132 second-feet May 29, 1936 (tage height, 2.91 feet): 

no flow at times in August, September, and November 1939 and September 1940, and 

probably at times during periods of ice effect in each year.

Remarks.- Records good except those for period 

sions above station for irrigation.

ice effect, which are fair. Two diverDischarge, in second-feet, water year October 1939 to September 191O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.4 

1.3 

1.3 

1.8 

E.8

3.0

E.5 

4.1 

3.P

3.2 

3.0 

3.0 

2.5 

2.3

E.O 

2 .0

1.8 

1.8

1.7

1.1 

.7 

.6 

.6

.6

.6 

.6 

.5 

.7 

1.0 

1.4

Hov.

1.4 

1.0 

1.0 

.7 

0

.1 

.1 

.1

.3 

.7

.5 

.6 

.7 

.6 

.7

.6

.8

Dec. Jan. Feb.

Month

Dot 

No? 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Se]

0

ember 1-

alendar year

 Oh 23-32 

^j_

ater year

liar.

1.5

1.6

1.6 

1.6 

1.6 

1.5 

1.6 

1.3

Apr.

2.1 

E.I 

2.0 

£.1 

E-3

£.5 

E.5

2.4 

2.4 

2 .4

2.3 

C .3 

3.0

5.4 

7.4

7.6 

6.8 

8.0

11 -»-15

16 

16 

16

14 

16

19 

E5 

19 

15

15

Secondfoot-days

55.9 

9.9

-

14.3 

E60.6 

829 

356.9

165.4 

50.0 

17.3

-

May

14 

21 

21 

21

35

29 

31

33

36 

36

38

37 

42 

40 

39

38 

37 

30 

26

2B 

17 

16

22 

31 

16 

15 

IE

Maximum

4.1 

1.4

-

1.8 

25

42

15

6.1

-

June

16 

16 

14 

11 

14

22 

El 

19

14

10 

10

8.5

IE

IE 

11 

9.9 

11 

11

7.3 

fc.2 

14 

IE

12

12 

11 

10 

9.6 

8.2

July

11 ' 

6.1 

3.8 

3.8

4.0 

6.7 

7.3 

6.7 

5.8

5.2 

0.4 

4.5 

4.5 

4.2

4.5 

6.7 

15 

12 

5.8

5.5 

4.5 

4.0 

3.0 

E.2

E.O 

2.0 

2.4 

E.2 

2.2 

2.2

Minimum

0.5

O

-

1.5 

2.0 

12

a.E

2.0 

.1

0

-

Aug.

2.4

2.4

E.O

1.8

1.4 

1.0 

l.E 

l.E 

.9

l.E

.8 

.6

.4

.1

.4

.1 

.2

1.6 

1.6 

1.8 

5.E

5.0 

6.3 

3.8 

E.O

.7

.6

Mean

1.80 

.58

-

1.59 

8.69 

26.7 

11.9 

5.34 

1.61 

.58

-

Sept.

0.3

!i .1 .1

.1

o

.2 

.1

.8

.9 

.6 

.1 

.1 

.1

.1 

.1 

.1 

.4 

.9

.9 

1.2 

1.0

1.4 

1.4

2.E 

1.6 

1.0 

.8 

.3

Rim-off in 

acre-feet

111 

£0

-

23 

517 

1,640 

708 

328 

99 

34

-

'"Winter discharge measurement made on this day. 

Hote.- Stage-discharge relation affected by ice Kar 23 to Apr. £2.
50 TRIBUTARIES ABOVE GREEN RIVER 

Williams River below Steelman Creek, Colo.

Location.- Water-stage recorder, lat. 39°46'45", long. 105°55'30", in sec. 20, T. 3 S., R. 

76 W., just downstream from Steelman Creek and 7 miles southeast of Leal.

Drainage area.- 16.3 square miles.

Records available.- October 1933 to September 1940 in reports of Geological Survey. July 

1933 to September 1940 in reports of State engineer. Records since May 10, 1940, 

equivalent to earlier records if flow diverted through Jones Pass tunnel is added to 

flow past station.

Extremes._- Maximum discharge during year, 68 second-feet June 1; maximum gage height, 1.95 

feet Way 5 (ice jam); minimum, 0.9 second-foot Aug. 14 (gage height, 0.09 foot), but may 

have been less during period of ice effect.

1933-40: Maximum discharge, 441 second-feet June 21, 1938 (gage height, 2.48 feet), 

from rating curve extended above 260 second-feet; minimum discharge recorded, that of 

Aug. 14, 1940,

Remarks.- Records fair. Transmountain diversion through Jones Pass tunnel to Clear Creek 

started I lay 10, 1940.

Discharge, In second-feet, water year October 1959 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

gg

23

24

25

26

27

28

29

30

31

Oct.

7.9

7.7

7.7

7.9

7.9

8.2

6.8

6.6

7.1

8.2

7.5

7.7

7.1

6.8

6.6

6.4

6.4

6.8

6.6

6.8

6.4

6.2

6.2

6.0

6.2

5.7

6.0

5.6

6.0

5.6

6.2

Nov.

6.6

6.4

6.4

6.4

6.6

5.7

5.6

6.0

6.2

6.2

6.2

6.2

6.0

5.8

5.4

4.9

4.6

4.3

4.2

4.3

4.3

4.3

4.2

4.1

4.1

4.2

4.1

3.8

3.5

3.3

-

Dec.

V

> 2.5

i

Month

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

Calendar year 1939

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

Hay. .................

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

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

Water year 1939-40

Jan.

> 1.6

Feb.

\

. 1.3

/

-

-

KarX

 1.2

(*)

Apr.

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.5

1.8

2.1

2.4

2.3

2.4

2.8

3.4

4.1

4.7

4.9

4.8

6.2

7.0

8.0

8.0

7.6

7.2

7-1

Observed

Secondfoot-days

210.8

153.9

77.5

,9,281.1

49.6

37.7

37.2

100.1

465.1

586

195.1

256.1

396

2,565.1

jlaxlnnna

8 2

6.6

203

_

8 .0

32

43

9 p o

£2

19

43

Minimum Bean

5.6 6.80

3.3 5.13

2.5

25.4

1.6

1.3

 1.2

1.1 3.34

7.1 15.0

10 19.5

2.5 6.29

ID 1 8 »£6

11 13.2

7.01

May

7.1

12

13

1C

18

21

20

25

32

29

11

12

IS

11

12

13

13

13

12

12

11

11

11

11

11

12

13

14

14

17

25

Run-off

acrefeet)

418

305

154

18,410

98

75

74

199

923

1,160

387

508

785

5,090

June

36

43

42

39

32

25

22

20

17

15

15

16

17

18

IS

17

17

16

15

20

18

16

13

13

12

12

11

11

10

10

July

9.8

9.6

9.S

9.6

8.4

7.9

7.7

7.5

7.1

7.1

7.1

6.8

6.6

6.8

6.2

6.0

7.1

7.5

6.6

6.0

5.7

5.5

5.1

a4.7

B.4.2

a3.7

a3.3

a3.2

a3.1

ag.9

a2.5

Diversion

by

Jones Pass 

tunnel 

acrn-f eet )

0

0

0

0

0

0

0

0

1,970

5,560

1,750

284

0

9,560

Aug.

a2.1

al.8

al.7

al.6

al.5

al.5

al.4

al.3

1.2

2.0

1.6

1.4

1.2

1.1

6.2

9.3

8.8

8.4

14

13

12

13

18

21

22

21

17

14

13

12

Sept.

12

12

16

14

12

12

12

13

13

13

12

12

13

12

12

12

12

12

12

12

12

12

12

11

12

17

19

17

17

17

Adjusted for

dlversl

Run-oT 

(acre-f set)

418

305

154

18,410

98

75

74

199

2,890

6,720

2,130

792

785

14.640

on

Mean 

secondfeet)

6.80

5.13

2.5

25.4

1.6

1.3

1.2

3.34

47.0

113

34.7

12.9

20.2

* Winter discharge measurement made on this day.

a Ho gage-height reeordj discharge computed on basis of records for station near lenl. 

Mote.- Stage-discharge relation affected by Ice Oct. 28, 30, 31, Nov. 4, 7, 8, Nov. 11 to Apr. 29, 

May S-S.
TRIBUTARIES ABOVE GREEN RIVER 51

Williams River near Leal, Colo.

Location.- Water-stage recorder, lat. 39°50', long. 106°03', in sec. 31, T. 2 S., R. 77 

W., Just downstream from Kinney Creek and 2 miles north of Leal.

Drainage area.- 84 square miles.

Records available.- October 1933 to September 1940 in reports of Geological Survey. July 

1933 to September 1940 in reports of State engineer. Records since Miy 10, 1940, equivalent to earlier records if flow diverted through Jones Pass tunnel is added to flow 

past station.

Extremes.- Maximum discharge during year, 588 second-feet June 2 (gage h3ight, 2.48 

feet); minimum daily, 13 second-feet Dec. 28, 29.

1933-40: 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 discharge, that of Dec. 28, 29, 1939.

Remarks.- Records excellent Dec. 1 to Mar. 15, Apr. 15 to Aug. 20, and the remainder 

fair. Transmountain diversion through Jones Pass tunnel to Clear Cre?k started May 

10, 1940.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Oct. 1 to Dec. 15, Mar. 1 to Apr. 19, Aug. 20 to Sept. 30)

0.3 

.6

1.0 

1.2 

1.5

122

188

1.8 

2.0 

2.2

274

346

435

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

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

33

32

35

35

36

34

34

40

37

38

38

37

36

35

35

34

33

33

32

32

32

32

31

32

32

32

26

31

26

32

Nov.

33

33

30

29

32

32

30

28

31

22

25

28

29

26

26

25

23

22

20

21

22

22

22

21

21

22

22

19

18

18

-

Dec,

18

IV

18

18

16

16

17

17

18

18

18

18

17

18

17

18

16

14

14

15

15

14

14

14

14

14

14

13

13

14

14

Month

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

Calendar year 1939

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

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

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

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

Water year 1939-40

Jan.

14

14

14

16

16

16

15

16

16

16

16

17

18

17

18

17

17

18

18

17

18

18

17

17

17

17

17

18

18

19

18

Feb.

17

1

1

1

7

6

6

16

15

]

]

]

7

6

7

18

17

]

]

]

7

7

7

17

16

:

]

]

8

7

7

16

16

]

]

]

6

6

5

15

15

]

]

]

5

5

4

_

-

Mar16

]

]

]

7

5

6

16

18

]

]

:

7

7

8

19

20

:

:

]

8

8

8

19

18

!

]

]

JO

19

IB

19

20

]

;

;

19

JO

22

24

24'

'

24

22

22

22

24

Apr.

25

J

!

',

25

24

24

24

25

!

!

;

24

22

23

22

18

;

;

;

21

25

29

32

30'

,

26

50

10

50

51

50

15

52

52

57

38

34

51

16

-

May

45

54

73

88

102

106

122

118

138

160

155

166

188

146

155

183

186

162

160

164

171

146

140

149

164

174

204

204

239

261

327

Observed

Secondfoot-daya

1,039

752

491

37,156

520

471

599

1,075

4,850

8,234

2,611

1,115

1,375

23,132

Maximum

40

33

18

810

19

18

24

68

327

430

171

67

67

430

Minimum

26

18

13

13

14

14

15

18

45

146

36

22

38

13

Mean

33.5

25.1

15.8

102

16.8

16.2

19.3

35.8

156

274

84.2

36.0

45.8

63.2

Run-off (acrefeet)

2,060

1,490

974

73,700

1,030

934

1,190

2,130

9,620

16,330

5,180

2,210

2,730

45,880

June

3S6

430

422

399

3S6

342

2S4

274

242

228

252

261

288

308

312

294

294

281

268

277

298

261

231

209

198

186

171

157

149

146

-

July

151

149

171

157

130

1FO

109

101

P3

87

S4

78

75

73

66

68

85

96

84

71

66

63

60

57

51

51

47

46

44

42

36

Diversion 

by 

Jonea Pass

Tunnel 

acre-feet)

0

0

0

0

0

0

0

0

1,970

5,560

1,750

284

0

9,560

Aug.

33

32

31

30

29

28

29

29

28

27

27

25

23

22

22

26

28

28

30

40

39

38

36

47

61

63

67

59

51

46

43

Sept.

42

38

40

59

44

40

41

38

44

48

43

40

43

44

44

43

43

43

44

45

42

43

41

41

42

60

67

60

56

57

Adjusted for 

diversion

Run-off 

(acre-feet)

2,060

1,490

974

73,700

1,030

934

1,190

2,130

11,590

21,890

6,930

2,490

2,730

55,440

Mean 

(seoondfeet)

33.5

25.1

15.8

102

16. S

16.2

19.3

35.8

188

368

113

40.6

45.8

76.4
52 TRIBUTARIES ABOVE GREEN RIVER

Williams River near Parshall, Colo.

Location.- Water-stage recorder, lat. 40°00', long. 106°11', in sec. 1, T. IS., R. 79 

W., 24 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.- 184 square miles.

Kecords available.- July 1904 to September 1924 and October 1933 to September 1940 in 

reports or Geological Survey. July 1904 to September 1924 and June 1933 to September 

1940 in reports of State engineer. Records since May 10, 1940, equivalent to earlier 

records if flow diverted through Jones Pass tunnel is added to flow past station.

Average discharge.- 27 years, 163 second-feet.

extremes.- Maximum discharge during year, 585 second-feet June 3 (gage height, 2.85 

feet); minimum daily, 21 second-feet Oct. 3.

1904-24, 1933-40: 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, but a higher discharge probably occurred June 15, when gage was 

destroyed; minimum daily discharge, 10 second-feet Sept. 15-17, 1934.

Remarks.- Records excellent except those for periods of ice effect, which are fair. 

Diversions above station for Irrigation. Transmountain diversion through Jones Pass 

tunnel to Clear Creek started on May 10, 1940.

ating table, water year 1939-40 except periods of Ice effect (gage height. In feet,

and discharge. In second-feet) 

(Shifting-control method used Mar. 12, Mar. 25 to Apr. 14)

0.9 14

1.0 22

1.1 31

1.3 52

1.4

1.5

1.6 

1.9

2.1 

2.7

240

510

Discharge, In seoond-feet, ureter year October 1939 to September 1940

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.

24

22

21

23

24

24

25

56

64

62

60

59

58

59

56

54

52

61

50

50

48

49

48

49

48

49

50

43

48

41

46

Nov.

48

49

45

42

46

49

43

41

44

39

39

43

44

44

43

43

43

40

38

40

39

42

43

41

39

40

43

40

38

40

-

Deo.

41

41

38

39

39

41

42

42

40

38

41

38

35

36

37

38

39

37

30

31

32

28

31

28

30

31

29

26

28

32

35

Month

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

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

Calendar year 1939

Peb 

Mar

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

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

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

Water year 1939-40

Jan.

*

34

32

33

35

33

29

28

32

28

F30

28

26

27

26

23

24

24

22

22

22

23

22

22

23

25

24

24

25

27

27

26

Peb.

28

£

£

£

8

7

7

26

26

£

£

I

6

5

6

26

26

£

£

£

6

5

4

26

24

»£

i

£

3

6

6

27

26

£

£

;

7

8

1

28

30

;

;

;

2

3

5

_

-

Mar35

;

;

;

3

1

3

35

36

I

;

;

6

56

57

38

37

;

?

3

6

5

6

37

41

t

t

Ito

t2

4

45

46

i

'

i

t

3

15

L6

i8

48

t

i

t

L

L6

t6

t2

13

49

Apr.

53

.

i

t

>3

18

19

50

52

i

t

i

18

14

18

44

39

;

'

]

9

14

)6

71

76

]

(

I

)8

>4

8

110

110

1(

I

<

)0

i2

6

96

103

15

1!

1(

c

>7

27

)5

96

May

90

105

135

170

200

206

226

206

216

280

280

289

338

276

272

284

284

256

248

248

248

226

200

197

206

220

268

272

298

325

384

Observed

Seoondfoot-days

1,413

1,268

1,093

44,788

826

784 

1,244

2 1V5

7*463

8,295

2,417

1,590

1,828

30,386

Maximum

64

49

42

715

35

36 

49

127

384

500

146

96

90

500

Minimum

21

26

18

22

23 

31

39

90

84

48

28

40

21

Mean

45.6

42.3

36.3

123

26.6

27.0 

40.1

72.5

240

276

78.0

51^

60.9

83.0

Run-off (acrefeet)

2,800

2,520

2,170

88,830

1,640

1,560 

2,470

4,310

14,780

16,460

4,790

3,150

3,630

60,270

June

465

466

500

451

428

420

343

320

268

244

256

256

284

312

325

289

284

260

240

233

294

256

200

176

166

148

127

110

92

84

-

July

100

105

115

145

100

92

77

74

72

62

67

69

62

63

62

68

58

75

125

120

106

96

74

70

64

62

59

56

52

50

48

Diversion

by Jones 

Pass 

Tunnel 

acre-feet)

0

0

0

0

0

0 

0

0

1,970

5,560

1,750

284

0

9,560

Aug.

45

42

40

39

38

37

37

43

51

52

66

51

43

34

28

28

30

30

34

48

51

51

49

57

88

94

96

90

76

68

65

Sept.

63

60

54

71

68

62

60

67

60

68

67

62

54

45

44

43

40

40

60

62

60

62

60

59

59

74

90

78

78

78

-

Adjusted for 

diversion

Hun-off 

(acre-fe?t)

2,800

g 520 2)170

88,830

1,640

1,560 

2,470

4,310

16,750

22,010

6,540

3,430

3,630

69,830

Mean 

secondfeet)

45.6

42.3

35.3

123

26.6

27.0 

40.1

72.6

272

370

106

55.9

60.9

96.2

*Wlnter discharge measurement made on this. day.

Note.- Stage-discharge relation affected by Ice Nov. 11 to Dec. 1, Dec. 13 to Mar. 11, Mar. 15-24.
TRIBUTARIES ABOVE GREEN RIVER 53

Blue River at Dillon, Colo.

Location.- Water-stage recorder, lat. 39°36'50", long. 106°03'05", in sec. 18, T. 5 S., 

K. 77 W., at edge of Dillon, a short distance upstream from Snake River and Tenmile 

Creek. Datum of gage is 8,821.42 feet above mean sea level (unadjusted).

Drainage area.- 129 square miles.

Records available.- October 1910 to September 1940.

Average discharge.- 30 years, 121 second-feet.

Extremes.- Maximum discharge during year, 392 second-feet June 2 (gage height, 3.05 feet); 

minimum daily, 10 second-feet Jan. 19, 22, Feb. 18.

1910-40: Maximum discharge observed, 1,180 second-feet June 2, 1914, June 14, 1924; 

maximum gage height observed, 4.35 feet June 2, 1914; minimum dibcharge observed, 7.4 

second-feet Mar. 22, 1933 (discharge measurement).

Remarks.- Records excellent except those for periods of" ice effect or no gage-height record, which are fair. Chain gage read twice daily at temporary site Oct. 8-20. Practically all water diverted above station is returned to river above.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

S

3

4

5

6

7

8

9

10

11

18

IS

14

IS

16

17

18

19

20

21

22

S3

84

85

86

27

88

29

SO

51

Oct.

a40

a3S

a38

a38

a38

a38

a38

40

40

38

38

36

36

36

36

36

36

35

35

34

a32

aS2

a30

a32

33

34

33

30

31

30

32

HOT.

30

30

30

32

30

30

31

32

30

27

24

26

27

28

28

27

25

23

21

22

24

24

25

25

23

22

22

23

22

22

-

Dec.

23

23

22

21

22

22

20

20

21

22

23

20

18

15

15

16

19

17

14

14

15

14

15

14

15

15

14

13

14

15

16

Jan.

16

17

17

18

17

17

16

18

«17

18

17

15

14

13

12

12

13

11

10

11

11

10

11

12

13

14

15

16

15

14

13

Feb.

14

16

16

16

16

*16

16

16

15

16

16

15

14

13

14

12

11

10

12

12

13

13

14

13

12

12

13

12

12

_

-

Honth

March.......... . . ... . , ..

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

Ihy....... ................................

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

Water year 1939-4

Mar.

12

13

15

15

16

15

14

16

17

19

*19

18

18

18

18

20

19

19

19

20

21

21

21

22

22

22

22

22

22

22

23

Apr.

23

24

24

24

25

25

24

26

24

24

27

31

21

23

25

26

26

28

30

33

37

36

42

44

47

50

55

61

64

69

-

Secondfoot-days

1,093

785

547

37,304

443

400

580

1,008

5,048

7,588

3,660

1,687

1,771

24,610

May

55

55

61

71

89

104

104

118

124

138

160

188

202

202

195

198

210

215

190

178

180

178

171

167

169

176

190

202

218

248

292

Mq yt ipiTTH

40

32

23

564

18

16

23

64

292

379

192

68

79

379

June

338

379

379

338

326

323

278

239

222

210

208

212

225

239

260

251

239

254

248

251

264

254

^39

228

218

210

200

188

188

180

-

July

185

192

176

173

165

156

146

138

130

122

120

114

107

104

107

105

109

116

120

114

307

102

98

95

89

86

82

79

77

74

72

M3-plnT'.TH

30

21

13

13

10

10

12

21

56

ISO

72

44

46

10

Aug.

68

64

61

60

60

59

59

58

58

56

56

55

53

52

51

50

47

45

45

44

44

47

48

47

49

52

58

64

62

60

55

Mean

35.3

26.2

17.6

102

14.3

13.8

18.7

33.6

163

253

118

54.4

59.0

67.2

Sept.

53

51

49

47

47

46

47

47

46

50

68

60

60

61

64

64

64

68

61

59

55

55

59

64

68

71

74

79

76

74

-

Run-off in 

acre-feet

2,170

1,560

1,080

73,980

879

793

1,150

2,000

10,010

15,050

7,260

3,350

3,510

48,810

 Winter discharge measurement made on this day.

a No gage-height records discharge computed on basis of records for Tenmile Creek at Dillon.

Hote.- Stage-discharge relation affected by Ice Oct. 28, 30, HOT. 10 to Mar. 29.
54 TRIBUTARIES ABOVE GREEN RIVER

Blue River below Green Mountain Reservoir, near Kremmling, Colo.

Location.- Water-stage recorder, lat. 39°56', long. 106°21', in NE| sec. 33, T. IS., R. 

80 W., Just downstream from Spring Creek, about 4 miles downstream from Green Mountain 

Dam and 10 miles southeast of Kremmling.

Drainage area.- 623 square miles.

Records available.- October 1937 to September 1940.

Extremes.- Maximum discharge during year, 2,800 second-feet June 2 (gage height, 4.98 

feet); minimum daily, 80 second-feet Feb. 18, 19.

1937-40: Maximum discharge, 4,000 second-feet June 4, 1938 (gage height, 5.93 

feet); minimum daily, 80 second-feet Feb. 18-24, 1938, Feb. 18, 19, 1940.

Remarks.- Records good except those for period of ice effect, which are fair. Many di- 

 versions above station for irrigation. Green Mountain Dam Is under construction.

Rating tables, water year 1939-40, except periods of ice effect (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control ffiethod used Mar. 25 to Apr. 5, Apr. 13-23, Aug. 24 to Sept. 30)

Oct. 1 to Apr. 23 Apr. 24 to Sept. 30

1.2 90 1.8 205 3.4 1,050 

1.4 120 2.0 270 3.9 1,530 

1.5 140 2.3 395 4.7 2,460 

1.6 166 2.8 645 

1.8 235

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

S 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

16

16 

17 

18 

19 

20

21 

22 

28 

24 

25

26 

27 

28 

29

30 

31

Oct.

228 

218 

204 

210 

214

221 

210 

210 

235 

224

214 

210 

204 

197 

190

186 

180 

176 

169 

166

163 

163 

158 

156 

153

156 

158 

136 

150 

136 

156

HOT.

158 

158 

148 

148 

145

145 

134 

126 

128 

110

107 

115 

115 

114 

110

107 

101 

98 

97 

98

100 

105 

105 

100 

100

105 

105 

110 

110 

110

Dec.

110 

115 

120 

120 

115

110 

110 

*114 

120 

115

115 

110 

105 

105 

105

105 

110 

110 

105 

100

100 

98 

96 

98 

100

98 

94 

92 

94

100 

105

Jan.

110 

110 

110 

115 

115

110 

110 

100 

98 

96

»96 

96 

96 

94 

92

88 

92 

88 

84 

86

86 

86 

84 

86 

88

92 

90 

90 

90 

90 

88

Feb.

86 

86 

88 

90 

88

86 

88 

90 

92 

92

92 

90 

88 

86 

84

84 

82 

80 

80 

*84

84 

86 

90 

92 

94

96 

100 

105 

110

Month

Dot 

HOT 

Dec

C

Jan 

Pet 

liar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

nary

11.....................................

ater year 1939-4

Mar.

110 

110 

105 

110 

110

115 

110 

110 

115 

115

120 

120 

115 

115 

120

120 

126 

130 

135 

145

150 

150 

150 

155

163

158 

158 

156 

 136 

132 

153

Apr.

176 

180 

145 

143 

158

166 

145 

130 

136 

136

124 

115 

134 

161 

204

224 

180 

176 

218 

263

299 

310 

281 

302 

314

318 

346 

350 

318 

290

Seeondf cot-days

5,751 

3,512 

3,294

179,586

2,956 

2,593 

4,016 

6,442 

29,028 

44,769 

18,514 

8,452 

8,078

137,405

May

260 

282 

334 

445 

555

560 

623 

628 

669 

816

1,020 

1,240 

1,410 

1,100 

 1,000

1,180 

1,280 

1,020 

874 

914

928 

842 

790 

854 

914

1,000 

1,270 

1,210 

1,420 

1,620 

1,970

Maximum

235 

158 

120

2,840

115 

110 

163 

350 

1,970 

2,440 

970 

422 

322

2,440

June

2,320 

2,440 

2,390 

2,100 

2,030

,920 

,400 

,330 

,160 

,010

,030 

,040 

1,450 

1,740 

1,750

1,480 

1,570 

1,600 

1,550 

1,560

1,610 

1,540 

1,360 

1,270 

1,120

1,090 

978 

956 

914 

861

July

900 

914 

949 

970 

848

783 

724 

675 

640 

612

590 

590 

540 

530 

510

525 

585

687 

731 

606

530 

520 

470 

450 

426

404 

382 

368 

359 

350 

346

Aug.

326 

314 

298 

286 

282

270 

274 

270 

266 

252

252 

238 

226 

214 

214

211 

211 

205 

205 

223

226 

232 

229 

238 

302

418 

422 

386 

350 

318 

294

Minimum Mean

136 18<3 

97 117 

92 lOii

92 498

84 95.4 

80 89.4 

105 130 

115 215 

260 9315 

861 1,492 

346 597 

205 27." 

242 269

80 375

Sept.

278 

263 

249 

270 

263

256 

252 

242 

242 

249

260 

256 

260 

266 

263

263 

260 

266 

270 

270

256 

260 

252 

260 

274

306 

322 

310 

322 

318

Run-off in 

acre-feet

11,410 

6,970 

6,530

356,200

5,860 

5,140 

7,970 

12,780 

57,580 

88,800 

36,720 

16,760 

16,020

272,500

 nWinter-dlBoharge measurement made on this day.

Note.- Stage-discharge relation affected by ice HOT. 21 to Mar. 24.
TRIBUTARIES ABOVE GREEN RIVER 55

Snake River at Dillon, Colo.

Location.- Water-stage recorder, lat. 39°36'50", long. 106°03'05", In sec. 18, T. 5 S.,

 R. 77 W., at private bridge at Dillon, 100 yards upstream from mouti. Datum of gage 

is 8,820.54 feet above mean sea level (unadjusted).

Drainage area.- 92 square miles.

Records available.- October 1910 to September 1919, December 1929 to Ssptember 1940.

Average discharge.- 20 years, 69.7 second-feet.

Extremes.- Maximum discharge during year, 460 second-feet June 2 (gage height, 3.27

 feet); minimum daily, 3.8 second-feet Jan. 19.

1910-19, 1929-40: Maximum discharge, 1,200 second-feet June 13, 1935 (gage height, 

4 25 feet), from rating curve extended above 500 second-ieet; minimum daily, 3 secondfeet Nov. 9, 1912.

Remarks.- Records excellent except those for periods of Ice effect or when shifting-

 control method was used, which are fair. One diversion above station for power.

Discharge, in second-feet, water year October 1939 to September 1940

Day

X

a

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

80

21 

22 

25 

84 

25

26 

27 

88 

29 

30 

31

Oct.

9.6 

9.6 

13 

11 

8.6

8.6 

8.6 

8.6 

8.9 

8.6

8.9 

8.6 

8.9 

9.6 

9.6

9.6 

9.6 

8.9 

9.2 

9.2

9.6 

9.2 

9.2 

9.6 

9.6

9.2 

10 

9.0 

9.6 

8.6 

9.2

HOT.

9.6

9.6 

9.6 

10 

9.6

9.6 

10 

10 

10 

9.0

8.6 

9.2 

9.6 

9.8 

10

10 

9.8 

9.2 

8.6 

9.2

9.6 

9.6 

10 

10 

9.4

8.4 

8.4 

9.2 

8.4 

8.4

Dec.

9.8 

9.4 

9.0 

9.0

8.4 

8.0 

8.0 

8.2 

8.4

7.6 

7.0 

6.0 

5.8 

6.0

6.4 

6.7 

6.4 

5.6 

6.0

6.2 

5.4 

6.0 

5.2 

5.8

5.6 

5.2 

4.8 

5.0 

5.2 

5.4

Jan.

5.4 

5.4 

5.2 

6.7

5.V 

5.6 

6.2 

*6.0 

6.4

6.0 

5.4 

5.4 

4.8 

4.4

4.4 

4.8 

4.2 

3.8 

4.6

5.0 

4.2 

4.6 

5.0 

5.4

5.8 

6.2 

6.6 

6.4 

6.0 

6.6

Feb.

6.4

V.5 

7.8 

7.8

8.1 

7.8 

7.5 

7.8 

7.5

7.8 

7.4 

6.4 

5.8 

6.2

6.0 

5.2 

5.8 

6.2 

6.6

7.0 

6.4 

6.8 

7.4 

7.0

5.7 

5.2 

7.8 

7.0

Month

Dot 

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

H ter year 1939-4

Mar.

8.0 

10 

7.5 

8.6

7.6 

8.9 

7.8 

7.0 

6.7

6.7 

6.7 

6.4 

6.6 

7.4

8.6 

7.0 

7.2 

7.0 

6.7

7.5 

8.9 

8.9 

8.6 

8.4

8.6 

7.8 

7.0 

6.7 

7.2 

8.6

Apr.

10 

8.6 

7.8 

7.8

8.4

7.5 

7.8 

8.1 

7.2

7.2 

12 

7.8 

11 

12

11 

10 

12 

16 

18

16 

15 

14

14 

14

14 

14 

14 

14 

14

Seoondfoot-days

290.0 

282.4 

209.9

21,112.2

166.6 

199.7 

238.6 

341.6 

2,400 

7,005 

1,765 

478 

348.2

13,725.0

May

14 

16 

16 

16 

17

14 

23 

30 

32 

52

69 

102 

108 

78 

86

108 

118 

88 

78 

78

74 

56 

56 

64 

75

86 

116 

116 

152 

186 

276

Maximum

13 

10 

9.8

432

6.7 

8.1 

10 

18 

276 

352 

120 

23 

14

352

June

344 

352 

322 

306 

322

283 

235 

222 

201 

204

222 

235 

254 

294 

283

261 

265 

248 

241 

254

261 

225 

195 

181 

159

142 

134 

124 

116 

120

July

120 

115 

111 

107 

92

83 

82 

75 

71 

59

56 

56 

49 

43

47

45 

45 

54 

58 

47

45

42 

35 

33 

31

27 

28 

30 

28 

26 

25

Minimum

8.6 

8.4 

4.8

4.8

3.8 

5.2 

6.4 

7.2 

14 

116 

25 

12 

9.5

3.8

Aug.

23 

23 

21

20 

19

19 

19 

19 

18 

17

16 

16 

14 

14 

13

13 

13 

12 

12 

12

12 

12 

12 

12 

13

13 

14 

14 

15 

14 

14

Mean

9.35 

9.41 

6.77

57.8

5.37 

6.89 

7.70 

11.4 

77.4 

234 

56.9 

15.4 

11.6

37.5

Sept.

13 

12 

12 

12 

11

11 

12 

14 

12

13

14 

13 

13 

12 

13

12 

12 

12 

11

11

10 

11 

9.9 

9.9 

9.5

10 

9.9 

10 

11 

12

Run-off in 

aore-feet

575 

660 

416

41,860

330 

396 

473 

678 

4,760 

13,890 

3,500 

948 

691

27,220

 Winter discharge measurement: made on this day.

Hote.- Stage-discharge relation affected by ice Oct. 28 to Nov. 1, HOT. 9 to Dec. 9, Dec. 11-16, 

18-SO, Jan. 7-28, 30, 31, Feb. 12-24, Mar. 1, 13-15. Shifting-control method used Jan. 29, Feb. 

1-11, 26-29, Mar. 2-12, Mar. 15 to Apr. 30, May 11-28.
56 TRIBUTARIES ABOVE GREEN RIVER 

Tenmlle Creek at Dlllon, Colo.

Location.- Water-stage recorder, lat. 39°36'45", long. 106°03'15", In sec. 18, T. 53.,

 R. 77 W., 250 feet dovmstream from highway bridge at Dlllon and 200 yard 5! upstream 

from mouth. Datum of gage Is 0,817.97 feet above mean sea level (unadjusted).

Drainage area.- 113 square miles.

Records available.- October 1910 to September 1919, April 1930 to September 1940.

Average discharge.- 20 years (1910-19, 1929-40), 126 second-feet.

Extremes.- Maximum discharge during year, 656 second-feet June 1 (gage height, 3.86 feet);

 minimum dally, 8 second-feet Jan. 19, 22, Feb. 17.

1910-19, 1930-40: 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 800 secondfeet; minimum, 2 second-feet Feb. 15-17, 20, 1918.

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

 which are fair. Diversions above station for Irrigation and mining. RoMnson Reservoir (capacity, 2,520 acre-feet) constructed above station In November 1936.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

6

6

7

8

9

10

11

12

13

14

16

16

17

18

19

20

21

22

83

84

85

86

27

28

29

50

31

Oct.

32

31

31

31

31

31

31

31

32

30

29

28

28

27

28

27

27

27

25

24

23

23

22

23

23

25

24

22

23

21

23

Hov.

24

24

27

22

23

24

23

22

19

17

15

17

18

19

19

IS

17

15

14

15

16

16

17

17

16

15

15

16

15

15

-

Dec.

16

16

15

15

16

16

15

15

16

17

18

16

14

13

13

14

16

13

12

13

13

12

13

12

13

13

12

11

12

13

14

Jan.

15

15

16

16

16

15

14

16

«15

16

15

13

13

12

10

10

11

10

8

10

10

S

9

10

11

12

13

14

13

13

12

Feb.

13

16

15

15

16

«16

16

15

14

15

14

13

12

11

12

11

8

9

11

12

12

11

12

12

11

10

11

10

10

_

-

Month

Feb 

Mar

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

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

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

Water year 1939-40. .....................

Mar.

10

11

12

12

12

11

10

11

12

12

*11

10

10

13

14

16

15

16

16

20

21

23

25

29

30

31

31

31

31

S3

36

Apr.

38

37

34

34

37

38

36

34

36

40

40

40

42

46

55

50

43

46

54

60

70

72

75

81

SO

84

91

86

75

67

-

Secondfoot-days

835

650

437

39,873

391

360 

574

1,619

7.B26

S,60S

3,169

1,317

1,170

26,748

May

67

81

110

139

156

151

180

ISO

216

269

306

330

330

266

269

290

298

280

269

276

258

225

249

280

298

322

302

290

338

362

438

Mcudnum

32

27

IS

SOO

16

16 

36

91

438

505

188

72

59

506

Jane

475

505

470

461

415

358

302

283

268

243

262

283

302

SIS

290

262

266

262

265

258

252

240

228

213

198

186

178

168

160

16S

-

July

188

176

170

163

148

142

135

131

118

93

102

99

88

83

83

90

106

110

118

90

S6

86

75

70

66

63

62

69

57

57

56

m^miM

21

14

11

11

B

B 

10

34

67

160

56

31

31

8

Aug.

51

49

46

43

42

41

42

45

41

41

40

37

32

31

34

S3

36

34

35

35

36

41

37

41

55

72

67

56

49

42

38

Mean

S<*.9 1«.S

14.1

10<J

1*.6

1?.4 

18.5

E4.0

2E2

283

IflO

49.5

3<J.O

73.1

Sept.

56

34

55

36

se

51

31

a34

aSS

a37

a42

41

43

38

38

42

37

37

56

34

55

56

57

43

46

62

69

49

46

46

-

Run-off in 

acre-feet

1,660

1,090

867

79,090

776

714 

1,140

3,210

15,620

16,870

6,290

2,610

2,320

63,060

 Winter discharge meaaureaent made on thla day.

a Ho gage-height record; discharge computed on basis of records for Blue Hirer at Dlllon.

Note.- Stage-discharge relation affected by Ice Oct. 30, 31, Nor. 10 to Mar. 19.
TRIBUTARIES ABOVE QREEN RIVER 57

Roaring Fork at Aspen, Colo.

Location.- Water-stage recorder, lat. 39°11'20", long. 106°48'55n , in sec. 7, T. 10 S., 

R. 84 W., at Aspen, three-quarters of a mile upstream from Hunter Creek.

Drainage area.- 109 square miles.

Records available.- January 1911 to September 1921 and January 1934 to September 1940 in 

reports or Geological Survey. January 1911 to September 1921, April 1932 to September 1940 in reports of State engineer. Records since May 24, 1935, equivalent to 

earlier records if flow diverted through Twin Lakes tunnel is added to flow past 

station.

Average discharge.- 18 years, 162 second-feet (including flow diverted through Twin 

Lakes tunnel].

Extremes.- Maximum discharge during year, 463 second-feet June 2 (gage height, 3.27 

feet); minimum daily discharge, 3.2 second-feet Aug. 15.

1911-21, 1933-40: 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 1,400 second-feet; minimum daily, 15 second-feet July 15, 16, 1934; minimum dally discharge since diversion through Twin Lakes tunnel began, that of 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 flow diverted through Twin Lakes tunnel furnished by State 

engineer.

Discharge, In second-feet, water year October 1939 to September 1940

D*7

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Oct.

12

11

11

11

11

11

10

10

11

10

10

10

10

10

11

111111

12

12

12

10

8.4

8.0

6.4

9.0

9.3

6.0

S.7

7.4

12

HOT.

11

11

11

10

11

12

11

9.3

10

7.4

7.7

11

19

20

19

18

18

17

17

16

17

17

18

18

18

17

16

17

16

17

-

Dee.

16

16

16

16

16

16

15

16

15

14

14

16

15

14

14

16

18

17

16

15

15

15

15

16

17

17

16

14

13

14

15

Month

Calendar year 1939

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

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

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

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

Water year 1939-40

Jan.

16

IS

18

18

19

20

20

21

23

23

22

23

22

20

18

18

18

17

16

17

15

14

14

14

15

16

17

17

16

15

15

Feb.

16

1

1

1

6

7

6

16

16

*1

1

1

6

6

6

16

17

1

1

1

6

6

6

16

16

1

1

1

4

4

5

15

14

1

1

1

6

6

6

16

16

1

1

1

6

6

6

_

-

Mar.

16

15

15

14

15

16

15

15

15

16

16

15

15

15

15

16

16

16

16

16

17

18

19

21

22

23

24

23

21

20

21

Apr.

23

Z

Z

Z

3

1

1

24

24

2

2

2

3

1

2

22

20

1

Z

Z

9

2

6

33

36

3

Z

3

1

S

9

55

67

1

7

e

5

6

5

83

93

1C

e

i

6

8

3

2

6

May

59

68

90

126

136

122

151

142

164

212

250

268

285

224

21S

257

2S5

207

185

180

164

151

172

201

212

231

254

274

310

302

344

Observed

Second - 

foot-days

315.2

437.4

478

27,988.6

555

458

537

1,341

6,244

5,375

891.6

400.1

570.2

17,602.5

Maximum

12

20

18

507

23

17

24

108

344

391

71

50

48

391

Minimum Mean

6.0 10.2

7.4 14.6

13 15.4

6.0 76.7

14 17.9

14 15.8

14 17.3

19 44.7

59 201

64 179

9.0 28.8

3.2 12.9

5.5 19.0

3.2 48.1

Run-off (acrefeet)

625

S68

948

55,530

1,100

90S

1,070

2,660

12,380

10,660

1,770

794

1,130

34,910

June

367

391

363

327

288

260

212

204

167

149

160

169

190

212

165

157

167

157

146

136

132

134

117

108

93

S3

78

71

66

64

-

Jul-r

7:

67

60

5 

51

50

4*

3T

3J

34

31

2T

24

25

2?

24

2 

24

2?

ISieifif

1!

1C

9.6

11

11

1C

9.0

Diversion 

by

Twin Lakes

Tunnel 

acre-feet)

290

130

29

35,950

32

41

51

451

6,960

13,510

2,380

90

1,OSO

27,040

Aug.

8.0

7.4

6.2

7.2

7.7

7.4

9.0

8.7

7.7

15

14

7.4

4.8

3.7

3.2

3.3

3.6

3.4

3.6

6.0

7.7

S.4

8.4

12

33

48

50

41

27

18

9.3

Sept.

6.2

5.7

5.7

6.0

5.7

5.5

5.7

6.2

6.2

6.2

6.0

5.7

7.4

12

11

11

11

22

22

20

18

28

37

48

47

44

42

39

40

40

Adjusted for 

diversion

Run-oi f 

(acre-feet)

915

997

977

91,480

1,130

950

1,120

3,110

21,340

24,170

4,150

684

2,210

61,950

Mean 

(secondfeet)

14.9

16. S

15.9

126

18.4

16.5

18.2

52.3

347

406

67.5

14.4

37.2

85.3

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice HOT. 18-22, Dec. 13-16, Dec. 1"? to Jan. 5, Jan. 

8, Jan. 13 to Feb. 5, Feb. 7, 13-16, 18, 19, and Mar. 13, 14.
58 TRIBUTARIES ABOVE ORESN RIVER 

Roaring Fork at Glenwood Springs, Colo.

Location.- Water-stage recorder, lat. 39°33', long. 107°20', in sec. 9, T. 6 S., R. 89

 W., at Glenwood Springs, 1,500 feet upstream from mouth. Datum of gage is 5,720.73 

feet above mean sea level (general adjustment of 1912).

Drainage area.- 1,460 square miles.

Records avaliable.- April 1906 to September 1909, September 1910 to September 1931, and 

October 1933 to September 1940 in reports of Geological Survey. April 1906 to 

September 1909 and September 1910 to September 1940 in reports of State engineer.

Average discharge.- 33 years, 1,494 second-feet.

Extrernes.- Maximum discharge during year, 5,320 second-feet June 1 (gage height, 4.38 

reetj; minimum daily, 220 second-feet Aug. 18.

1906-9, 1910-40: 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 excellent above 500 second-feet and good below. Diversions above 

station for Irrigation. Transmountain diversion through Twin Lakes tunnel to 

Arkansas River Basin. Total flow diverted during water year 1939-40 was 27,040 acrefeet (see p. 57 for record by months).

Rating table, water year 1939-40, except period of Ice effect (gage height, in feet,

and discharge. In second-feet) 

(Shifting-control method used Mar. 27 to May S, June 23 to July 27, Aug. 1 to Sept. 30)

0.7 220

1.0 415

1.3 660

2.3 1,740

2.9 2,520

3.7 3,920

4.1 4,720

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

Z

4

S

6

Y

8

9

10

11

12

IS

14

15

16

17

18

19

SO

21

22

23

24

25

26

27

88

29

SO

31

Oct.

615

597

597

606

606

597

5S8

5SS

615

597

579

570

554

546

530

522

522

514

506

498

498

490

475

460

460

482

490

482

468

468

468

lov.

475

490

482

475

475

475

475

475

475

475

468

468

468

468

468

452

422

401

380

359

380

373

373

380

380

373

380

373

366

359

~

Dec.

366

359

359

359

359

352

352

352

352

345

345

338

286

306

319

338

33S

345

274

268

326

300

326

319

326

332

268

250

256

359

401

Jan.

359

326

352

326

326

319

312

268

345

332

326

326

326

293

232

232

326

359

256

326

394

319

293

b245

b255

b280

b330

b350

338

338

338

Feb.

326

326

312

306

300

26S

312

280

300

300

293

293

256

268

332

293

244

268

319

286

262

300

293

300

286

300

300

306

319

_

-

Month

Calendar year 1939 ......................

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

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

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

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

Water year 1939-4 D. ...... ...............

Mar.

319

306

300

286

293

306

293

286

293

300

332

300

262

262

293

312

332

319

326

332

338

352

380

408

445

475

490

490

 438

401

408

Apr.

422

452

415

380

394

415

40S

373

366

373

359

326

338

387

475

546

546

498

554

730

926

1,070

1,120

1,270

1,300

1,210

1,370

1,280

1,120

530

-

Seoondfoot-days

16,588

12,363

10, 175

374,409

9,747

8,548

10, 677

19,953

77,997

77,190

23,431

10,731

19,542

297,442

May

915

882

1,110

1,670

1,990

1,850

2,030

1,970

2,310

2,810

3,070

3,150

3,540

3,060

2,860

3,070

3,360

2,650

2,280

2,320

2,280

1,990

1,980

2,310

2,580

2,700

2,930

3,060

3,520

3,630

4,120

HaxJJBUOl

615

490

401

5,270

394

332

490

1,370

4,120

4,540

1,460

770

1,040

4,540

June

4,540

4,520

4,340

3,380

3,600

3,270

2,650

2,630

2,230

1,900

1,960

2,230

2,550

3,000

3,020

2,460

2,600

2,660

2,510

2,440

2,270

2,310

2,110

2,020

1,790

1,710

1,560

1,530

1,480

1,420

-

July

1,460

1,430

1,360

1,270

1,130

1,110

1,020

981

926

882

350

790

730

670

642

633

642

660

633

615

562

530

506

468

452

438

415

401

408

394

373

Minimum

460

359

250

250

232

244

262

326

882

1,420

373

220

352

220

Aug.

326

300

230

262

250

250

256

262

238

226

256

268

244

244

244

232

226

220

256

256

280

326

319

345

452

624

770

750

660

579

530

Mean

535

429

928

l,r«6

?14 r95

344

ees

2,516

2,673

756

?46 esi

F13

Sept.

482

460

452

438

422

394

380

359

366

380

373

352

422

514

498

530

562

750

970

992

915

1,020

1,040

1,000

970

926

882

830

904

959

-

Run-off in 

acre-feet

32,900

25,510

20,180

742,600

19,330

16,950

21, 180

39,580

154,700

153,100

46,470

21,280

38,760

589,900

b Stage-discharge relation affected by Ice.
TRIBUTARIES ABOVE GREEN RIVER 59

Crystal River near Redstone, Colo.

Location.- Water-stage recorder, lat. 39°18', long. 107°13', In NEt sec. 9, T. 93., R. 

88 W., 75 feet downstream from Nettle Creek and 7 miles downstream from Redstone. 

Datum of gage is 6,485.07 feet above mean sea level (unadjusted).

Drainage area.- 197 square miles.

Records available.- May 1935 to September 1940. 1908-9 at site 3 miles downstream; 

records not equivalent.

Extremes.- Maximum discharge during year, 2,090 second-feet June 1 (gage height, 4.14 

feet); minimum dally, 46 second-feet Jan. 15.

1935-40: Maximum discharge, 4,400 second-feet June 21, 1938 (gage height, 5.96 

feet), from rating curve extended above 2,200 second-feet; minimum dally, that of 

Jan. 15, 1940.

Remarks.- Records good. Diversions above station for Irrigation.

Rating table, water year 1939-40, except periods of Ice effect (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Mar. 25 to May 14, Sept. 19-30)

0.6 46

'.7 56

1.0 94

1.3 144

1.4 166

2.0 340

2.4 490

2.7 650

2.9 SOO

3.4 1,230

3.9 1,830

Discharge. In second-feet, water year October 1939 to September 1940

Day

1

2

7,

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

89

30

31

Oct.

104

97

96

107

102

102

99

100

105

100

99

96

93

90

88

100

110

108

105

104

102

102

99

99

97

110

108

100

99

97

97

Hcv.

97

97

97

94

94

94

93

91

88

87

83

83

83

83

80

79

79

76

75

73

75

74

75

75

74

73

72

72

72

69

-

Dec.

70

70

68

68

66

67

68

68

67

67

68

69

67

68

66

68

6S

66

54

b54

b57

55

b57

b58

b58

58

47

b50

b60

b66

70

Jan.

64

61

64

62

64

64

60

57

66

63

62

64

61

56

b46

b47

b58

b60

51

63

66

54

b52

b50

b54

b59

b60

61

58

61

66

Feb.

64

64

62

61

5S

56

62

55

60

60

58

56

50

63

61

56

50

55

61

53

51

56

55

55

54

56

58

61

63

Month

 V...... .................................

»atar year 1939-4(

Mar.

63

62

57

53

56

60

57

58

57

57

62

54

53

51

54

61

66

63

63

66

69

78

91

107

124

130

128

124

105

96

97

Apr.

102

105

97

93

99

108

107

102

99

99

94

86

88

108

142

157

142

140

194

280

361

414

450

499

470

462

499

446

378

325

-

Secondfoot-days

3,115

2,457

1,965

105,416

1,834

1,674

29,669

3,111

5,290

97,992

May

269

326

442

626

S45

713

818

800

1,020

1.2SO

1,350

1,340

1,410

1,290

1,300

1,370

1,290

962

935

1,010

953

752

872

1,090

1,210

1,220

1,280

1,390

1,530

1,530

1,680

Ma^

110

97

70

1,650

64

499

216

347

1,760

June

1,650

1,760

1,620

1,520

1,370

1,150

971

962

713

620

800

1,010

1,1SO

1,270

1,270

1,070

1,100

1,160

1,110

980

863

836

760

706

620

574

530

526

494

474

-

July

450

400

378

361

344

319

319

310

280

262

244

228

214

205

202

202

216

200

177

159

146

142

131

130

121

120

113

128

126

108

99

Minimum

88

69

47

47

46

SO

86

239

474

99

57

66

46

Aug.

93

91

S6

83

79

73

93

83

76

75

76

74

72

67

64

62

58

57

78

87

87

94

81

108

144

200

216

200

180

148

121

Mean

100

81.9

63.4

289

59.2

57.7

225

1,064

989

100

176

268

Sept.

100

115

104

90

76

70

69

66

86

99

87

83

108

115

107

105

121

274

322

337

289

347

316

289

256

242

219

208

283

307

-

Rim-off in 

acre-feet

6,180

4,870

3,900

209,100

3,640

3,320

13,380

65,400

58,850

13,560

6,170

10,490

194,400

b Stage-discharge relation affected by Ice.

400453 O - 41 - 5

9-232 February 1956

UNITED STATES DEPATIEHT OF THE INTERIOR 

Ueolof. al Surrey
60 TRIBUTARIES ABOVE GREEN RIVER 

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

Location.- Water-stage recorder, lat. 39°17', long. 107°31', In NEi sec. 14, T. 9 S., 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 1940. 

Extremes.- naximum discharge during year, 271 second-feet May 9 (gage heignt, 1.91 feet),

from rating curve extended above 170 second-feet; no flow on many days.

1938-40: Maximum discharge, that of May 9, 1940; no flow during parts of each

year. Remarks.- Records excellent above 10 second-feet and good below except those for periods

or ice effect or no gage-height record, which are fair.

Flow Increased above station by diversion from Clear Fork of East Muddy CreeK

(Gunnison River Basin) through Clear Fork ditch, and by diversion from Thompson Creek

(Roaring Fork Basin) through Thompson Creek feeder ditch In the amounts given In the

following table.

Thomps

Ditch

on Creek feeder ditchMonth

May

June 

July

May

June 

July

Divers Ion 

(acre-feet)

829 

57

149 

392 

21

Rating cable, irater year 1939-40, except period of Ice effect (gage height, In feet,

discharge. In second-feet) 

(Shifting-control method used June 30 to July 24)

0 0. 

.1

0.1 

.2 

.3 

.4 

.5

2.2

4

1.1 

1.4 

1.6

136

186

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

4

S

6

7

a

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

at

25

26

27

20

90

31

Oct.

0.7

.7

.7

.7

.8

.8

.8

1.2

1.8

1.5

1.8

1.8

1.6

1.5

1.5

1.4

1.2

1.2

1.6

.7

.7

.7

.7

.7

.8

1.5

1.4

.9

1.1

.9

1.2

HOT.

1.2

1.2

1.1

1.1

1.1

1.1

.9

.8

.9

.7

.8

.8

.8

.7

.7

.1

0

0

0

0

0

0

0

0

0

0

0

.1.1.1

-

Dec.

0.1

o

0

0

0

0

0

0

0

0

0

0

.1.1.1

.1

0

0

0

0

0

0

0

0

0

aO

aO

aO

aO

aO

aO

Jan. Feb.

Month

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

Calendar year 1939. .....................

Aprils. ...................................

Maj... ....................................

Water year

Mar.

_

-

-

-

-

.

-

-

-

-

.

-

.

*bO.S

bl

bl.4

bl.8

bl.6

bl.8

b2

b2.5

b4

b6

b8

blO

b!2

blO

b8

b7

7.5

9.8

Apr.

11

7.0

4.5

3.8

4.0

5.5

4.5

3.8

3.S

3.6

2.9

4.0

8.0

19

30

29

20

16

28

43

64

67

74

86

99

105

103

80

62

55

Second - 

foot-days

34.6

14.3

.5

7,265.8

1,214.0

*.Q 1

4.2 

25.6

-

May

55

84

125

17C

181

183

16E

176

186

176

178

17E

186

173

168

173

143

125

121

112

112

99

92

94

84

84

84

94

101

94

90

M&xiiBum

1.3

1.2

.1

183

92

1.5 

3.5

-

June

92

90

86

82

78

76

64

60

52

46

44

44

44

43

42

38

33

30

26

25

24

20

15

13

11

9

8

6.5

5.5

7.0

-

July

8.0

7.0

5.5

5.0

4.0

3.5

3.3

2.7

2.6

2.6

2.6

2.4

2.1

1.5

1.2

1.4

1.4

1.5

1.2

.7

.6

.4

.2

.1

.1

0

0

0

.2

.2

.1

yii> i flftiBi

0.7

0

0

0

_

6.5

0 

0

-

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.7

1.5

.9

.6

.3

.1

0

Mean

1.12

.48

.02

19.9

_

132

40.5

.14 

.85

-

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

.4

.2

.3

2.6

2.1

1.9

1.8

2.6

1.9

1.8

1.2

1.2

1.1

.9

1.8

3.5

Run-off in 

acre-feet

69

28

1.0

14,410

_

2,410

8.3

51

-

 Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records.

b Stage-discharge relation affected by Ice.

9-832 February 19S6

TOTTED STATES DEPAP'TIENT OF THE HJTERIOR 

Qeoloe, al Surrey
TRIBUTARIES ABOVE GREEN RIVER 

Plateau Creek near Collbran, Colo.

61

Location.- Water-stage recorder, lat. 39°15', long. 107°50', In NWi sec. 24, T. 9 S., R.

94 w., 7 miles east of Collbran. 

Drainage area.- 88 square miles. 

Records available.- August 1921 to September 1927 (monthly discharge) an1 October 1933

to September 1940 In reports of Geological Survey. August 1921 to September 1940 In

reports of State engineer.

Average discharge.- 19 years, 99.6 second-feet. 

Extremes.- Maximum discharge during year, 1,310 second-feet May 9 (gage height, 4.56

feet); minimum daily, 4.7 second-feet Dec. 28.

1921-40: Maximum discharge, 2,800 second-feet May 28, 1922 (gage height, 6.72 feet,

site and datum then In use), from rating curve extended above 1,300 second-feet;

minimum dally, 3 second-feet Sept. 21, 1926. 

Remarks.- Records good except those for periods of ice effect, which are fair. Five

small diversions above station.

Rating table, period May 15 to Sept. 30, 1940 (gage height. In feet, and discharge, 

In second-feet)

1.7

1.8

1.9

3.0

3.1 

3.3

6.5

8.5

11.5

15

19.5

31

2.5

3.6

3.7 

2.8 

3.0 

3.3

48

60

74

91

133

186

3.4 

3.6 

3.8 

4.1

252

335

450

Discharge, in second-feet, water year October 1939 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

SI

Oct.

8.6

7.8

7.8

8.2

8.3

10

8.9

9.3

11

9.6

11

10

10

9.6

S.9

8.6

8.9

8.6

8.6

7.8

8.3

7.8

7.8

7.8

8.6

10

10

10

11

10

9.6

Hov.

10

10

9.3

9.6

8.3

9.3

7.8

7.8

9.6

7.5

11

10

10

9.6

9.2

8.6

7.3

6.6

5.5

5.3

5.8

7.3

7.5

7.8

7.8

7.5

6.9

7.8

7.8

6.6

-

Dec.

6.3

6.3

7.3

6.9

6.6

6.6

6.6

6.9

6.9

6.6

7.5

6.6

6.0

6.4

7.2

7.5

7.8

7.5

6.9

7.3

5.5

5.8

6.3

6.4

6.2

5.6

5.0

4.7

5.8

7.5

8.4

Jan.

8.7

8.5

7.8

7.5

7.8

7.3

6.8

6.6

6.7

6.9

6.9

6.8

6.8

7.1

6.4

5.3

4.8

4.9

4.8

5.0

5.1

5.0

4.9

5.6

5.9

6.0

6.3

6.8

6.8

7.1

7.6

Feb.

8.0

8.0

7.8

7.3

6.8

7.4

7.8

7.4

7.0

7.8

7.5

6.8

6.4

*9.3

8.6

8.2

8.0

9.2

8.6

8.0

7.4

8.0

9.0

10

10

11

12

13

11

_

-

Month

Calendar year 1939. . ....................

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

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

toy.......................................

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

Water year 1939-40......................

Mar.

10

9.6

9.0

10

11

9.0

10

11

9.0

10

9.0

8.0

8.2

*8.4

8.8

9.0

9.2

9.2

9.6

11

13

15

20

25

32

37

38

29

28

18

19

Apr.

21

19

19

16

17

19

17

17

17

17

16

16

19

35

61

59

42

41

71

99

130

158

205

267

263

286

290

212

166

135

-

Secondfoot-days

283.1

244.5

204.6

20,525.9

200.1

246.2

463.0

8,750

18,390

1,295

507

318.6

806.1

19,707.2

Hay

125

163

260

414

499

584

568

584

740

780

760

740

760

700

632

592

368

357

362

294

271

252

228

208

202

186

172

164

155

140

130

l%ytm^m

11

11

8.4

608

8.7

12

38

290

780

184

85

86

107

780

June

124

115

109

93

81

81

68

59

53

46

43

37

34

32

30

28

24

22

20

19

22

21

21

18

16

15

15

14

14

21

-

juir

23

25

20

19

19

20

22

21

20

19

19

18

17

16

13

12

13

13

14

12

11

11

12

15

14

13

12

16

17

18

13

m^imim

7.8

5,8

4.7

4.7

4.8

6.4

8.0

16

125

14

11

6.5

6.5

4.7

Aug.

12

10

9.7

9.4

10

9.4

13

9.4

8.5

9.1

10

9.1

7.3

6.9

6.5

7.1

7.1

7.1

8.1

11

8.3

9.4

12

15

26

21

14

9.7

8.1

7.9

7.5

Mean

9.10

8.15

6.60

56.2

6.45

8.49

14.9

91.7

400

43.2

16.4

10.3

36.9

53.8

Sept.

7.7

7.5

7.5

7.7

7.5

7.3

7.5

7.7

7.9

7.9

7.1

6.5

8.5

12

11

8.8

11

107

84

42

29

36

41

66

60

29

22

24

55

70

Run-off In 

acre-feet

5SO

485

406

40,780

397

488

918

5,450

24,580

2,570

1,010

632

1,600

39,100

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice NOT. 20, 21, Dec. 13, 14. Dec.

9-23B February 19S6

TJHITBD STATES DBPAB"1MEHT OF THS ISTERIOR 

Oeologl JL Surrey
TRIBUTARIES ABOVE GREEN RIVER

Plateau Creek near Cameo, Colo.

Location.- Water-stage recorder, lat. 3t>°ll', long. 108°16', in SWi sec. 18, T. 10 S., 

R. 97 W., 1.1 miles upstream from mouth and 4 miles northeast of Cameo.

Drainage area.- 604 square miles.

Records available.- April 1936 to September 1940.

Extremes.- Maximum discharge during year, 1,800 second-feet May 13 (gage height, 5.08 

reet); minimum daily, 16 second-feet July 14, 15, Aug. 17, 18.

1936-40: Maximum discharge, 2,550 second-feet May 29, 1938 (gage height, 6.07 

feet), from rating curve extended above 1,400 second-feet; minimum daily, that of 

July 14, 15, Aug. 17, 18, 1940.

Remarks.- Records excellent except those for periods of ice effect, which are fair. 

Many diversions above station for irrigation.

Rating table, water year 1939-40, except periods of ice effect (gage height, in feet, and

discharge, in second-feet) 

(Shifting-control method used Oct. 1-25, Feb. 5 to Apr. 2)

1.2

1.3

1.4

1.5

1.7

1.8 

2.0 

2.2 

2.4

82

120

170

230

2.6 305

2.8 390

3.0 495

4.5 1,390

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

52 

53 

54 

56

58 

56 

58 

59 

60

59 

60 

59 

58 

58

58 

52 

53 

54 

56

50 

49 

50 

49 

50

64 

57 

59 

60 

60 

59

HOT.

59 

59 

60 

59 

60

60 

60 

64 

68 

67

59 

62 

64 

64 

62

59 

56 

54 

54 

58

60 

59 

59 

59 

59

59 

68 

62 

64 

60

Dec.

58 

56 

58 

58 

58

59 

58 

56 

60 

60

59

58 

46 

56 

53

56 

58 

59 

45 

48

51 

52 

54 

55 

53

47 

44 

42 

44 

51 

70

Jan.

78 

74 

68 

59 

62

60 

59 

56 

59 

58

59 

62 

64 

52 

48

#41 

42 

42 

38 

43

44 

42 

41 

45 

49

51 

53 

60 

59 

62 

65

Feb.

68 

68 

68 

64

62

56 

68 

62 

60 

64

62 

58 

52 

75 

74

59 

59 

79 

70 

60

58 

67 

68 

86 

84

118 

106 

104 

110

Month

Oct 

Hov 

Dec

C

Jan

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

V

uary

ater year 1939-4 1...... ................

liar.

96 

82 

80 

68 

77

82 

65 

68 

72 

72

79 

62 

52 

53 

59

72 

77 

68 

70 

74

74 

82 

93 

112 

128

152 

185 

191 

148 

118 

120

Apr.

150 

140 

102 

112 

122

125 

114 

110 

108 

110

95 

84 

91 

132 

206

227 

170 

160 

191 

258

317 

372 

390 

528 

628

592

736 

610 

490 

420

Secondfoot-days

1,744 

1,817 

1,682

48, 182

1,695 

2,089 

2,831 

7,890 

21,119 

1,504 

677 

764 

1,499

45,311

May

341 

381 

544 

820 

964

1,010 

1,100 

928 

1,040 

1,340

1,310 

1,230 

1,290 

1,290 

1,060

1,070 

802 

534 

580 

544

435 

381 

325 

293 

254

258 

240 

215 

203 

179 

158

Ma*!, 

67 

68 

70

982

78 

118 

191 

736 

1,340 

142 

35 

82 

206

1,340

June

142 

128 

120 

108 

95

86 

86 

72 

68 

60

46 

41 

36 

35 

32

29 

28 

27 

25 

23

26 

25

22 

22 

21

19 

20 

19 

20 

23

July

35 

31 

30 

26 

26

23 

22 

22 

19 

19

19 

18 

18 

16 

16

19 

21 

22 

22 

22

22 

22 

22 

22 

20

19 

20 

22 

23 

20 

19

Miniannn

49 

54 

42

20

38 

52 

52 

84 

158 

19 

16 

16 

24

16

Aug.

18 

17 

18 

19 

19

19

20 

21 

20 

21

21 

20 

19 

18 

18

18 

16 

16 

19 

19

19 

18 

22 

45 

45

82

40 

33

31 

28 

25

Mean

56.3 

60.6 

5*. 3

138

54.7 

72.0 

91.3 

263 

681 

50.1 

21.8 

24.6 

50.0

124

Sept.

25 

26 

26 

31 

27

26 

27 

26 

26 

26

25 

24 

28 

28 

28

28 

29 

56 

132

74

62 

62 

72 

80 

58

53 

50 

47 

91 

206

Hun-of f in 

acre-feet

3,460 

3,600 

3,340

95,580

3,360 

4,140 

5,620 

15,650 

41,890 

2,980 

1,340 

1,520 

2,970

89,870

*Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 20 to Jan. 3, Jan. 14 to Feb. 4.

0-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolot ,al Survey
TRIBUTARIES ABOVE GREEN RIVER 63

Buzzard Creek near Helberger, Colo.

Location.- Water-stage recorder, lat. 39°17', long. 107°43', .In NEi se~,. 13, T. 9 S., 

R. 93 W., 1.1 miles downstream from Hightower ranger station and 3 miles east of 

Heiberger.

Drainage area.- 76.5 square miles.

Records available.- April 1936 to September 1940.

Extremes.- Maximum discharge during year, 320 second-feet Hay 4 (gage height, 3.40 feet); 

no flow on many days.

1936-40: Maximum discharge, 720 second-feet Apr. 30, 1938 (gage height, 4.45 feet), 

from rating curve extended above 430 second-feet; no flow at times in each year.

Remarks.- Records good. One diversion above station to West Divide Creek for irrigation.

Discharge, In seeend-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

IS

13

14

IS

16

17

18

19

20

81

88

83

24

25

26

27

28

29

30

31

Dot.

0

0

0

0

0

0

o 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

2.6

2.6

2.4

1.6

1.4

Hov.

1.4

1.4

1.4

1.2

1.3

1.2

1.2

1.1

1.3

1.1

1

1

1

1.1

1

.e

.7

.6

.6

.5

.6

.5

.6

.4

.6

.6

.7

.7

.7

.6

-

Dec.

.7

.6

.6

.5

.4

.4

.4

.6

.6

.7

.9

.9

.7

.6

.8

.2

.1

0

0

0

.1

t.l

t.l

t.l

0

0

0

0

0

0

0

Jan. Feb.

Month

March 16-31...,. ..........................

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

 tor.......................................

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

Water year

Mar.

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

2.1

2.1

2.1

2.1

2.1

2.2

2.3

2.3

2.3

2.3

2.4

2.4

2.4

2.6

2.6

4.5

Apr.

16

12

13

12

13

16

13

13

14

12

9.7

9.7

16

31

44

37

33

28

41

60

74

78

82

107

144

136

132

83

63

62

-

Secondfoot -days

11.0

26.6

10.0

_

_

38.8

1,393.4

2,942

218.7

6.2

0

14.7

-

May

46

64

117

178

196

171

167

107

120

138

136

120

120

161

153

160

117

86

81

74

70

69

47

41

48

36

38

34

28

26

26

Maxjbnuni

2.6

1.4

.9

-

_

4.6

144

196

23

1.1

0

3.8

-

June

23

20

18

18

16

15

16

13

10

8.1

6.3

6.5

4.7

3.8

4.6

6.0

6.3

3.9

2.7

2.1

1.8

2.2

3.1

2.9

2.2

1.6

1.2

.8

.6

.5

Jo]-"

.7

.6

1.1

1.0

.6

.4

.2

.1

.1

.1

.1

.1

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

IH T»H rm-ftQ

0

.4

0

-

_

2.1

9.7

25

.5

0

0

0

-

Aug.

Mean

0.36

.88

.32

-

_

2.42

46.4

94.9

7.29

.17

0

.49

-

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.6

2.1

3.6

1.7

1.1

.6

.6

.9

3.8

-

Run-off in 

aore-feet

22

63

20

-

_

77

2,760

6,840

434

10

0

29

-

b Stage-discharge relation affected by Ice.

9-832 February 1936

TJHITED STATES DEPATCEHT OF THE IHTERIOR 

Oeolo& al Survey
64 TRIBUTARIES ABOVE GREEN RIVER 

Buzzard Creek near Collbran, Colo.

Location.- Water-stage recorder, lat. 39°16', long. 107°52', in sec. 14, T. 9 S., R. 94 

W., half a mile upstream from Brush Creek and 7 miles east of Collbran.

Drainage area.- 139 square miles.

Records available.- August 19E1 to September 1927 (monthly discharge only), October 1933 

to September 1940 in reports of Geological Survey. August 1921 to September 1940 in 

reports of State engineer.

Average discharge.- 19 years, 53.0 second-feet.

Extremes.- Maximum discharge during year, 345 second-feet May 7 (gage height, 3.96 feet); 

minimum dally, 0.4 second-foot Aug. 3-9, 12, 14-19, 22, 29-31, Sept. 1-6, 8-12, 14.

1921-40: Maximum discharge, 1,270 second-feet May 8, 1922 (gage height, 7.8 feet), 

from rating curve extended above 800 second-feet; minimum, 0.1 second-foot Aug. 27, 

1934 (gage height, 0.76 foot).

Remarks.- Records excellent except those below 5 second-feet which are fair. Several 

diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

5

6

7

a

9 

10

11

18 

IS 

14 

15

16

17 

18 

19 

20

21 

22 

28 

24 

85

26 

27 

28 

29

SO

SI

Oct.

1.2, 

1.1 

1.1 

1.2 

1.2

1.4 

1.2 

1.4 

1.6 

1.6

1.5 

1.5

1.5 

1.5 

1.5

1.5 

1.5 

1.6 

1.6 

1.4

1.4 

1.5 

1.5 

1.6 

1.7

2.4 

2.9 

3.1 

2.9 

2.9 

2.9

HOT.

2.9 

2.8 

2.6 

2.6 

2.6

2.5 

2.2 

1.9 

2.4 

2.1

2.1 

1.8 

1.8 

1.7 

1.9

1.7 

1.7 

1.7 

1.6 

.9

.9 

.9 

1.4 

1.0 

.9

1.0 

1.0 

.9 

1.0 

.8

Dec.

0.9 

.9 

.8 

.8 

.9

.9 

.8 

.8 

.8 

.9

.7 

.6 

.7 

.8 

1.0

1.1 

1.4 

1.2 

1.1 

.9

.8 

.8 

.8 

.8 

.7

.7 

.7 

.6 

.6 

.6 

.7

Jan.

0.8 

.8 

.8 

.8 

.9

.9 

.9 

.8 

.8 

.8

.8 

.8 

.9 

.9

.7

.6 

.6 

.6 

.6

.7

.7 

.7 

.7 

.8 

.8

.9 

.9 

1.0 

1.0 

1.1 

1.2

Feb.

1.2 

1.3

1.3 

1.2 

1.2

l.l' 

1.3 

1.2 

1.2 

1.2

1.1 

1.0 

1.0 

 1.8 

1.6

1.3 

1.3 

2.0 

1.9 

1.8

1.7 

2.0 

2.3

2.7 

3.2

3.2 

3.7 

3.7 

3.4

Month

Dot 

Ho? 

Dec

C

Jan 

Fell 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

fl

nary

 ter Tear 1939-4 0. .....................

Mar.

3.4

4.1 

4.6 

5.S 

5.0

4.1 

5.0 

3.1 

5.0 

3.2

2.9 

3.2 

3.2 

3.2

3.7

4.4 

4.6 

6.2 

6.2 

6.2

8.0 

14 

18 

34 

44

68 

85 

63 

43 

28 

71

Apr.

71 

48 

29 

32 

54

56 

42 

40 

41 

43

-23 

19 

32 

88 

109

110 

74 

71 

78 

113

158 

163 

156 

187 

269

224 

233 

182 

148 

132

Seoondfoot-days

52.9 

51.3 

25.8

10,261.7

25.3 

52.7 

563.1 

3,025 

4,765 

183.4 

36.5 

14.4 

31.9

8,827.3

May

10" 

122 

171 

24S 

280

271 

276 

240 

233 

262

251 

239 

215 

237 

201

206 

184 

136 

126

123

106 

96

75 

62 

68

55 

54 

41 

32 

25 

22

Maximum

3.1 

2.9 

1.4

267

1.2 

3.7 

85 

269 

280 

20 

1.6 

.8 

14

280

June

20 

19 

18

15 

14

12 

13 

11 

9.8 

8.6

7.0 

4.1 

2.9 

2.8 

2.5

2.4 

2.2 

2.1 

1.7 

1.7

1.7 

1.5 

1.4 

1.4 

1.4

1.2 

1.2 

1.2 

1.0 

1.6

July

1.6 

1.6 

1.2 

1.2 

1.2

1.1 

1.0 

1.1 

1.0 

1.1

1.1 

1.1 

1.0

1.1

1.5

1.5 

1.5 

1.4 

1.5 

1.4

1.4 

1.4 

1.2 

1.2 

1.1

1.0 

1.1 

1.1 

.6 

.6 

.6

Minimum

1.1 

.8 

.6

.5

.6 

1.0 

2.9 

19 

22 

1.0 

.6 

.4 

.4

.4

Aug.

O.E 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.5

.5 

.4 

.5 

.4 

.4

.4 

.4 

.4 

.4

.5

.5 

.4 

.6 

.6 

.6

.8 

.6 

.5 

.4 

.4 

.4

Mean

1.71 

1.71 

.83

28 1

.82 

1.82 

18-2 

101 

154 

6-11 

1.18 

.46 

1.06

24.1

Sept.

0.4 

.4 

.4 

.4

.4

.4 

.5 

.4 

.4 

.4

.4

.4 

.5 

.4

.5

.5 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

1.0

1.0 

.6 

.8 

2.9

14

Run-off in 

acre-feet

105 

102 

51

20,350

50 

105 

1,120 

6,000 

9,450 

364 

72 

29 

63

17,510

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Dec. 27-30, Jan. 7 to Feb. 24.

9-2S2 February 19S6

DHITED STATES DEPABTMEHT OF THE IHTERIOR 

Oeolog jl Surrey
TRIBUTARIES ABOVE GREEN RIVER 65

Staff gage, lat. 38°49', long. 106°36', at dam in sec. 16, T. 14 S., R. 83 W., on 

Taylor River Just downstream from Taylor Park and 17 miles northeast of Almont, Colo. 

Datum of gage is 9,187 feet above mean sea level (Bureau of Reclamation bench mark;). 

Records available, October 1938 to September 1940 in reports of Geological Survey, 

September 1937 to September 1938 in files of Bureau of Reclamation. Maximum contents 

observed during year, 85,400 acre-feet July 4 (elevation, 9,319.00 feet); minimum, 9,980 

acre-feet Sept. 20-22 (elevation, 9,243.55 feet). Maximum contents observed during 

period 1938-40, 108,820 acre-feet May 31, 1939 (elevation, 9,331.25 feet); minimum, that 

of Sept. 20-22, 1940.

Reservoir is formed by earth and rock-fill dam; storage began in September 1937. 

Capacity, 106,230 acre-feet between elevations 9,187 feet (bottom of outlet tunnel) and 

9,330 feet (crest of spillway). No dead storage. Water used for irrigation in Uncompahgre Valley. Gage read once daily. Records furnished by UncoTpahgre Valley Water 

Users' Association.

No other reservoirs of any consequence in Gunnison River Basin, 

following table are of usable contents.

Figures given in the

Elevation and contents, water year October 1939 to September 1940

Date

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

Calendar year 1939. ......

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

Water year 1939-40. ......

Elevation 

(feet)

9 285 45

9 274 55

9 277 30

9,279.05

-

9 2 86 4,0

9*292 OS

9,245.70

-

Contents 

(acre-feet)

32,040

-

84 050

10,840

-

Change In contents 

during month 

(acr'S-feet )

-9 510

+2 200

+1,500

-27,860

-15,760

-27,010
66 TRIBUTARIES ABOVE GREEN RIVER

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 Dam and 16 miles northeast of 

Almont.

Drainage area.- 155 square miles.

Records available^- October 1938 to September 1940. June 1929 to August 1934, summation 

or records ror~Taylor River, Texas Creek, and Willow Creek at Taylor ParJ' practically 

equivalent.

Extremes.- Maximum discharge during year, 825 second-feet Oct. 3 (gage height, 3.50 

feet); no flow May 1 to July 3.

1938-40: Maximum discharge, that of Oct. 3, 1939; no flow May 1 to July 3, 1940.

Remarks.- Records good. Flow regulated since September 1937 by Taylor Park Reservoir 

 (capacity, 106,000 acre-feet). One small diversion from Willow Creek above reservoir.

Cooperation.- Gage-height record and results of discharge measurements furnished by 

Uncompahgre Valley Water Users' Association.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

80

21

28

83

84

85

86

27

88

29

30

31

Oct.

312

315

682

160

125

182

215

215

218

212

210

208

208

208

208

208

20 S

208

208

208

210

210

210

226

865

250

250

250

250

150

27

HOT.

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

20

20

20

20

20

20

20

20

20

15

Dec.

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

Jan.

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

Feb.

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

-

Month

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

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

**........ ...............................

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

Water year 1939-4

Mar.

14

14

14

14

14

,14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

Apr.

14

14

14

14

14

14

14

14

14

14

14

71

99

99

99

44

10

10

10

10

10

10

10

10

10

10

10

10

10

10

-

Seoondfoot-days

7,016

695

310

75,642

620

580

434

706

0

0

16,823

16 f 990

10,262

54,436

Hay

lfmH mum

682

25

10

814

20

20

14

99

0

0

682

682

650

682

June July

0

0

0

202

385

496

545

570

595

650

676

676

676

660

682

666

615

535

515

600

666

682

650

655

655

660

671

635

615

610

580

Minimum

27

15

10

10

SO

20

14

10

0

0

0

21

57

0

Aug.

590

595

610

620

640

682

630

565

590

600

575

590

620

630

660

660

645

565

21

635

630

580

585

580

555

445

265

210

346

501

570

Mean

22f

sz.s

1C

207

2C

2C

H

2J.5

C

C

54f

54F

34r

14F

Sept.

570

555

550

550

550

530

545

550

540

530

580

650

635

590

506

465

277

196

150

84

74

86

82

66

64

59

57

57

57

57

"

Run-off in 

acre-feet

13,920

1,380

615

150,000

1,230

1,150

861

1,400

0

0

33,370

33,700

20,350

108,000

9-232 February 1936

UNITED STATES DEPARTMENT OP THE UITERIOR 

Qeoloi. .al Survey
TRIBUTARIES ABOVE GREEN RIVER 67

Taylor 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, 800 feet upstream from confluence with East River. Datum of gage Is 

8,011.98 feet above mean sea level (general adjustment of 1912).

Drainage area.- 440 square miles.

Records available.- July 1910 to September 1931 and October 1933 to September 1940 In 

reports or Geological Survey. July 1910 to September 1940 In reports of State 

engineer.

Average discharge.- 30 years, 360 second-feet.

Extremes.- Maximum discharge during year, 856 second-feet Oct. 3 (gage height, 2.97 

reet); minimum dally, 35 second-feet Jan. 15, 16.

1910-40: Maximum discharge, 3,760 second-feet June 9, 1920 (gage height, 5.0 

feet), from rating curve extended above 2,300 second-feet; minimum before storage 

began }.n Taylor Park Reservoir, 50 second-feet several days In August 1913 (gage 

height, 1.2 feet); minimum dally, 24 second-feet Mar. 12, 1938.

Remarks.- Records good except those for periods of Ice effect, which are fair. Flow 

partly regulated since September 1937 by Taylor Park Reservoir (capacity, 106,000 

acre-feet), 24 miles above station. Diversions from tributaries above station for 

Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

8

9

10

11

18in

14

16

16

17

IB

19

SO

81

as

m

PA

85

86

87

88

89

SO

51

Oct.

368

36S

752

240

179

208

267

262

267

25S

249

249

249

249

244

244

249

249

249

249

249

249

249

254

310

310

305

300

315

285

93

SOY.

86

83

SI

7S

7S

83

7S

76

81

76

76

7S

7S

7S

7S

76

7S

76

76

7S

72

72

78

83

74

74

81

72

74

74

-

Dec.

74

74

72

65

65

61

49

50

58

61

58

54

49

47

48

49

47

45

45

45

47

4S

49

49

4e

46

43

39

41

44

50

Jan.

52

52

52

53

53

52

50

45

49

51

52

4S

43

3S

*35

35

39

40

37

40

41

39

37

42

45

46

49

46

46

47

46

Feb.

51

52

50

4S

44

43

46

48

47

 47

47

47

45

45

4S

46

45

47

49

48

46

4S

49

4S

4S

49

4S

48

4S

-

-

Month

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

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

Water year 1939-40........... ...........

Mar.

49

48

48

49

49

4S

47

49

50

49

47

50

54

50

48

48

49

45

45

45

47

49

50

43

49

52

52

52

49

49

52

Apr.

56

56

50

49

52

54

50

50

50

50

47

56

151

15S

168

144

67

76

95

115

121

112

109

112

103

106

106

88

61

76

-

Seoondfoot-days

8,56S

2,326

1,620

110,659

1,402

3,265

18,520

11,686

75,227

Hay

63

74

95

124

118

86

9S

83

8S

124

144

14 e

137

140

146

168

168

137

118

11S

130

121

109

121

127

137

168

165

172

172

190

Mo^imm

752

86

74

1,160

196

776

680

776

June

196

193

186

172

15S

144

130

118

115

109

103

100

9S

100

106

'93

103

9S

95

93

93

90

83

SI

7S

72

69

65

61

63

-

Ju.\T

65

5S

5S

136

396

505

564

584

605

633

696

704

720

712

728

744

696

688

612

64S

736

776

752

720

720

752

752

720

ese

68S

664

m^^lpinl

93

72

39

39

61

56

121

35

A^.

648

64 S

656

664

6SO

72S

712

626

619

633

619

633

656

672

704

712

696

696

163

594

64S

59S

605

598

591

505

362

244

335

524

584

Mean

276

77.5

52.3

303

47.4

109

597

390

206

Sept.

584

584

577

570

564

564

564

564

557

550

570

672

680

619

564

518

401

262

240

151

124

134

162

144

137

134

124

121

124

127

-

Run-off in 

acre-feet

16,990

4,610

3,210

219,500

2,730

6,480

36,730

23,180

149,200

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affscbed by ice Dec. 13-18, Dec. 21 to Mar.

9-8S8 February 1936

TJHITED STATES DEPARTMENT OP THE I5TERIOR 

Qeolct al Surrey
68 TRIBUTARIES ABOVE GREEN RIVER 

Gunnison River at lola, Colo.

Location.- Water-stage recorder, lat. 38°29', long. 107°06', in NWi sec. 28, T. 49 N.,

 R. 2 W., 1,000 feet upstream from highway bridge and 3,000 feet northeart of lola.

Drainage area.- 2,490 square miles.

Records available.- October 1899 to November 1903, April 1938 to September 1940.

Extremes.- Maximum discharge during year, 1,650 second-feet May 17 (gage height, 2.15 

feet); minimum dally, 160 second-feet Mar. 7.

1899-1903, 1938-40: Maximum discharge observed, 6,130 second-feet Ji'ne 18, 1903 

(gage height, 6.00 feet, site and datum then In use); minimum dallydIscharge (prior 

to construction of Taylor Park Reservoir), 221 second-feet at times In r°rlod July to 

October 1902; minimum dally discharge, 130 second-feet Feb. 19, 1939.

Remarks.- Records good except those for period of Ice effect, which are fair. Flow

 partly regulated since September 1937 by Taylor Park Reservoir on Taylor River (capacity, 106,000 acre-feet). Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14 

IS

16 

17 

18 

19 

80

21 

22 

83 

84 

85

26 

27 

28 

29 

30 

31

Oct.

500 

490 

712 

570 

402

394 

450 

442 

434 

434

426 

418 

418 

426 

426

426 

426 

426 

426 

426

434 

434 

434 

434 

458

474 

490 

482 

482 

474 

370

Her.

312 

300 

300 

294 

294

306 

306 

300 

306 

312

294 

300 

312 

318 

312

300 

300 

318 

330 

330

330 

3C4 

318 

312 

312

300 

312 

306 

294 

288

Dec.

306 

288 

282 

270 

276

286 

300 

288 

282 

270

265 

270 

245 

245 

250

260 

260 

250 

240 

235

240 

250 

260 

265 

260

250 

230 

215 

210 

210 

220

Jan.

2 SO 

230 

240 

250 

250

240 

230 

230 

240 

250

250 

*223 

210 

200 

195

205 

210 

220 

205

215

220 

210 

200 

200 

205

210 

220 

220 

200 

195 

195

Peb.

205 

205 

190 

175 

170

170 

180 

185 

185 

*182

180 

180 

175 

180 

185

185 

180 

170 

180 

185

185 

170 

170 

180 

180

180 

185 

185 

185

Honth

Dot 

HOT 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jim 

Jul 

tag 

Sep

W

uary

11.....................................

y. .....................................

afcer year 1939-4

Mar.

180 

180 

185 

185 

190

180 

160 

*166 

170 

170

170 

180 

195 

180 

180

200 

220 

240 

240 

250

270 

320 

380 

450 

450

482 

530 

510 

450 

410 

434

Apr.

466 

458 

402 

354 

362

386 

378 

354 

338 

338

312 

294 

346 

426 

510

560 

458 

450 

520 

660

833 

899 

866 

92S 

855

767 

789 

701 

630 

550

Seoondfcot-days

14,038 

9,240 

7,980

284,424

6,788 

5,267 

8,507 

16,184 

33,532 

24,064 

20,494 

24,408 

13,475

183,977

May

466 

434 

466 

650 

778

680 

745 

745 

778 

1,050

1.310 

1,430 

1,410 

1,290 

1,210

1,320 

1,560 

1,410 

1,160 

1,110

1,280 

1,260 

1,080 

1,070 

1,140

1,200 

1,280 

1,260 

1,280 

1,290 

1,390

Maximum

712 

330 

306

3,210

250 

205 

530 

922 

1,560 

1,490 

822 

970 

670

1,560

June

1,490 

1,460 

1,440 

1,290 

1,200

1,100 

970 

888 

822 

734

660 

660 

690 

789 

844

811 

811 

800 

778 

745

712 

712 

680 

600 

520

474 

434 

362 

300 

288

July

282 

276 

255 

235 

330

510 

600 

620 

640 

650

712 

723 

745 

734 

734

811 

811 

822 

712 

701

723 

811 

789 

756 

734

767 

822 

822 

778 

778 

811

H^nlwim

370 

288 

210

130

195 

170 

160 

294 

434 

288 

235 

474 

225

160

Aug.

767 

833 

833 

811 

800

877 

970 

910 

877 

888

866 

866 

866 

866 

899

922 

877 

866 

550 

620

844 

789 

778 

789 

811

745 

640 

474 

474 

640 

660

Mean

453 

308 

257

779

219 

182 

274 

5S9 

1,082 

802 

661 

787 

449

503

Sept.

650 

620 

610 

610 

570

530 

520 

520 

520 

490

490 

590 

670 

660 

640

580 

550 

378 

402 

338

282 

294 

306 

255 

245

240 

235 

230 

225 

225

Run-off in 

acre-feet

27,840 

18,330 

15,830

564,200

13,460 

10,450 

16,870 

32,100 

66,510 

47,730 

40,650 

48,410 

26,730

364,900

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 15 to Mar. 24.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeolog al Surrey
TRIBUTARIES ABOVE GREEN RIVER oa 

Gunnison River near Grand Junction, Colo.

Location.- Water-stage recorder, lat. 39°02', long. 108°34', in NWi sec. 35, T. 1 3., 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.

Drainage area.- 8,020 square miles.

Records available.- October 1894 to December 1895 and May 1897 to September 1899 (at

 site near mouth), April 1917 to September 1928, and January 1934 to September 1940 

(at present site) in reports of Geological Survey. April 1917 to September 1930 and 

January 1934 to September 1940 in reports of State engineer.

Average discharge (river and power canal).- 20 years (1917-30, 1933-40), 2,968 second- reet. 

Extremes.- Combined flow (river and power canal): Maximum discharge, 9,020 second-feet 

flay 13; minimum daily, 306 second-feet Aug. 18.

1917-30. 1933-40: Maximum discharge, 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. 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 Gunnlson River Basin. 

Discharge tables include flow of power canal.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

80

81

eg

83

84

35

86

87

88

29

30

31

Oct.

953

925

911

1,030

1,070

1,150

867

800

825

882

880

895

880

858

835

814

795

772

745

740

731

716

694

682

660

678

815

837

873

836

852

Hov.

917

985

1,060

1,040

1,020

999

1,010

1,020

1,000

1,070

1,080

1,020

991

1,020

1,030

1,010

981

930

907

925

918

955

988

974

1,000

1,010

1,040

1,080

1,100

1,050

Dec.

992

928

907

928

907

902

897

871

886

909

948

913

905

864

745

700

757

822

839

774

705

709

704

756

767

784

740

625

600

661

737

Jan.

852

914

906

894

896

877

858

824

760

776

814

862

891

803

800

738

703

655

*602

665

695

700

6SO

696

740

790

780

830

810

790

780

Feb.

870

913

944

913

936

962

747

759

741

741

741

729

705

677

698

719

698

677

677

691

677

677

698

740

772

796

1,040

900

828

-

Month

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

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

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

Ha?.. ....... ........ . .... . . .

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

Water year 1939-40......................

Mar.

726

873

837

822

790

782

819

798

767

775

840

874

824

737

724

730

756

823

854

868

889

954

1,010

1,130

1,310

1,470

1,630

1,900

1,840

1,450

1,350

Apr.

1,200

1,410

1,370

1,190

1,080

968

1,090

1,100

968

860

795

731

584

511

70S

1,540

1,810

1,450

1,240

1,730

3,160

4,250

4,310

4,360

4,760

4,570

4,800

4,850

3,980

3,330

-

Secondfoot-days

26,001

30,130

' ie~

678,081

24,381

22,666

30,952

64,705

169,260

81,942

15,063

15,891

24,677

530,850

May

2,870

2,510

2,680

3,580

5,310

5,680

5,550

5,710

5,820

6,470

7,590

8,180

8,560

8,530

7,640

7,180

7,220

8,150

6,680

5,510

4,970

5,180

4,770

4,500

4,560

4,300

3,990

3,960

3,870

3,870

3,870

MajdjnusL

1,150

1,100

992

7,830

914

1,040

1,900

4,850

8,560

4,650

761

1,100

1,840

8,560

June

3,470

3,180

3,260

3,590

4,170

4,650

4,270

3,640

3,590

3,250

2,780

2,740

3,010

3,430

3,290

3,750

3,110

3,040

2,770

2,510

2,240

2,030

1,940

1,790

1,590

1,290

1,090

943

811

718

-

July

761

697

646

570

543

511

444

417

439

392

368

390

376

376

383

398

555

522

578

578

530

482

436

420

458

437

414

369

407

611

555

IHTI^IWITIH

660

907

600

307

602

677

724

511

2,510

718

368

306

411

306

Aug.

507

437

429

384

362

377

362

369

377

421

369

355

334

327

313

320

320

306

341

525

436

588

474

629

835

944

1,100

1,050

886

757

657

Mean

839

1,004

010 OJ.6

1,858

786

782

998

2,157

5,460

2 V3l *486

513

823

1,450

Sept.

590

614

622

582

500

472

441

456

448

441

418

411

542

466

669

741

756

818

1,040

1,040

1,100

1,120

1,140

1,190

1,230

1,200

1,180

1,110

1,500

1,840

-

Run-off in 

acre-feet

51,570

59,760

49,950

1,345,000

48,360

44,960

61,390

128,300

335,700

162,500

29,880

31,580

48,950

1,053,000

 Winter discharge measurement of river made on this day.

Note.- Stage-discharge relation affected by Ice on river Dec. 27-29, Jan. 18-31; on canal, Jan. 

21-83.

9-252 February 1936

UNITED STATES DEPAPTEBHT OP THE IHTERIOR 

Qeolog al Surrey
70 TRIBUTARIES ABOVE GREEN RIVER

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 8,009.51 feet above 

mean sea level (general adjustment of 1912).

Drainage area.- 295 square miles.

Records available.- April to October 1905, July 1910 to April 1922, October 1934 to 

September 1940.

Average discharge.- 13 years (1910-13, 1916-20, 1934-40), 365 second-feet.

Extremes.- Maximum discharge during year, 1,220 second-feet May 11 (gage height, 3.56 

reet;; minimum daily, 20 second-feet Jan. 15, 16.

1905, 1910-22, 1934-40: Maximum discharge, 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 except those for periods of ice effect, which are fair. 

Diversions above station for irrigation.

Discharge, In second-feet, water Tear October 1939 to September 1940

Day

1

a

3

4

5

6

7

B

9

10

n

12

IS

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

108

92

92

94

98

100

102

102

102

102

102

104

102

98

98

98

98

98

98

98

96

96

90

81

79

82

89

86

89

86

89

 or.

92

90

94

90

90

98

90

87

89

79

78

78

76

75

73

72

68

69

70

66

65

66

69

71

72

73

75

70

68

66

-

Dec.

69

67

66

65

65

60

60

57

56

55

52

50

49

47

48

49

47

45

44

43

43

44

44

45

41

37

33

30

31

32

33

Jan.

34

34

34

33

33

32

30

28

29

29

29

28

24

22

 20

20

21

22

21

21

21

22

22

22

23

23

23

22

22

23

23

Feb.

24

25

24

24

23

22

22

23

23

*23

24

25

23

22

26

29

27

27

31

34

32

31

31

37

33

35

43

44

45

-

Month

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

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

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

Water year 1939-4

Mar.

46

45

45

46

48

46

43

46

49

46

45

40

45

44

45

45

48

43

44

43

48

50

52

57

62

72

73

66

65

65

73

Apr.

75

73

69

65

70

70

75

75

78

73

65

62

72

89

141

155

131

150

228

355

470

510

505

560

495

495

575

500

415

332

-

Secondfoot -days

2 949

1,507

90,437

832

16,632

3,391 

2,340

67,903

May

248

256

350

560

645

580

708

714

834

1,010

1,090

1,110

1,080

926

905

996

1,130

884

774

798

792

690

675

732

816

864

884

891

926

898

996

Ha-rimnm

69

1,450

1,020

143 

148

1,130

June

1,020

975

940

846

786

732

640

630

540

460

450

500

550

615

615

550

570

550

505

495

495

505

455

415

365

336

300

276

260

256

-

July

260

224

208

181

172

155

150

143

126

119

119

112

110

110

108

102

100

94

100

98

94

92

94

92

90

89

90

89

86

62

79

Minimum

79

30

30

248

256

78 

24

20

Aug.

79

79

78

78

78

79

100

143

138

124

129

131

114

112

122

119

114

106

104

110

106

104

106

117

114

129

136

122

114

106

100

Mean

48.6

248

28 7

554

109 

78.0

186

Sept.

84

78

78

76

73

72

70

68

58

32

24

25

34

73

72

72

76

86

141

131

119

148

117

78

78

76

69

70

76

86

Run-off in 

acre-feet

2,990

179,400

32,990

6,730 

4,640

134,700

 Winter discharge measurement made on this day.

Eote.- Stage-discharge relation affected by Ice Hoy. 17-24, Dec. 12 to Feb. 29.

''-252 February 1936

UMITBD STATES DEPAR1"MENT OP THE IFEERIOR 

Qeologl 1 Surrey
TRIBUTARIES ABOVE GREEN RIVER 71

Tomichl Creek at Sargents, Colo.

Location.- Water-stage recorder, lat. 38°24', long. 106°25', in SWi seo. 21, T. 48 N., 

 RTTTE., 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, AprLl 1938 to September 1940.

Extremes.- Maximum discharge during year, 167 second-feet May 21 (gage height, 1.42 

feet); minimum daily, 11 second-feet Aug. 5.

1917-22, 1938-40: Maximum discharge, 792 second-feet June 9, 1931 (gage height, 

4.05 feet, site and datum then In use), from rating curve extended above 600 secondfeet; minimum discharge recorded, 6 second-feet Nov. 16, 1920.

Remarks.- Records good except those for period of ice effect, which are fair. Diversions 

aDove station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

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

sn

28 

29 

30 

31

Oct.

20 

19 

18 

18 

18

18 

19 

19 

19 

19

19 

19 

19 

19 

18

19 

22 

24 

25 

24

24 

24 

24 

23 

23

25 

24 

24 

27 

29 

29

HOT.

27 

26 

25 

27 

28

31 

27 

31

29

27 

31 

32 

28 

26

25 

25 

25 

25 

26

26 

27 

28 

30 

29

30 

32 

32 

30 

29

Dec.

32 

34 

34 

33 

33

*32 

31 

30 

29 

28

28 

28 

27 

27

27 

27 

26 

25 

26

25 

25 

25 

26 

26

24 

22 

21 

20 

20 

20

Jan.

21 

23 

23 

22 

20

21 

21 

20 

19

18

19 

»19 

18 

18 

17

17 

18 

18 

19 

19

17 

17 

18 

18 

18

19 

20 

18 

16 

16 

17

Feb.

18 

20 

2O 

19 

17

16 

17 

16 

»16 

16

17 

16 

15 

15 

16

15 

14 

14 

16 

15

14 

15 

16 

17 

16

16 

17 

18 

19

Month

Oct 

Hov 

Deo

C

Jan 

Pel) 

Mar 

Apr

 Tux 

Jill 

Aug 

Bep

11

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

nary

ater year 1939-4

Mar.

19 

18 

18 

IS 

17

18 

17 

*17 

19 

21

22 

21 

20 

20 

21

23 

24 

24 

24 

24

26 

29 

31 

33 

35

37 

41 

40 

39 

39 

43

Apr.

46 

49 

51 

52

47

43 

35 

35 

34 

32

32 

32 

40 

51 

52

47 

38 

42

54 

65

72 

67 

61 

65 

56

61 

65 

63 

61 

60

Seoondfcot-days

671 

843 

839

19,468

534 

476 

798 

1,508 

3,286 

1,324 

605 

5S5 

537

12,006

Hay

52 

61 

70 

88 

96

99 

112 

114 

121 

128

138 

140 

124 

114 

119

128 

138 

131 

110 

103

138 

119 

101 

94 

94

96 

96

92 

90

88

Mqyflflpiifl

29 

32 

34

263

23 

20 

43 

V2 

140 

87 

27 

25 

23

140

June

87 

83 

79 

76 

76

72 

58 

52 

51 

43

42 

42 

42 

40 

40

45 

45 

38 

34

47

32 

31 

£8 

25 

£1

20 

21 

21 

20 

23

July

27 

27 

24 

24 

27

27 

23 

22 

21

18

15 

17

17 

18 

18

22 

21

18 

18 

17

16 

15 

15 

15 

18

19 

20 

20 

16 

15 

15

Minimum

18 

25 

20

16

16 

14 

17 

32 

52 

20 

15 

11 

14

11

Aug.

15 

14 

13 

12 

11

14 

22 

20 

16

17

17 

15 

14 

13 

13

15 

14 

13 

15 

20

22 

21 

21 

22 

23

25

23 

21 

21 

18 

15

Mean

21.6 

28.1 

27.1

53.3

18.8 

16.4 

25.7 

50.3 

106 

44.1 

19.5 

17.3 

17.9

32.8

Sept.

14 

14 

15 

17 

15

14 

15 

15 

15 

15

17 

16 

17 

16 

15

16 

20 

21 

21 

18

19 

23 

21 

22 

22

21 

20 

20 

21 

22

Run-off in 

acre-feet

1,330 

1,670 

1,660

38,610

1,160 

944 

1,580 

2,990 

6,520 

2,630 

1,200 

1,060 

1,070

23,810

 Winter discharge measurement made on this day. 

Hote.- Stage-discharge relation affected by ice Nov. 16 to Apr. 3.

9-2S2 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeoloj. al Survey
72 TRIBUTARIES ABOVE GREEN RIVER

Tomlchl Creek at Gunnlson, Colo.

Location.- Water-stage recorder, lat. 38°32', long. 106°56', In sec. 11, T. 49 N., R. 1 

W., half a mile upstream from mouth and 1 mile south of Gunnlson.

Drainage area.- 1,020 square miles.

Records available.- November, December 1910 (gage heights only, datum then In use), April 

1938 to September 1940.

Extremes.- Maximum discharge during year, 326 second-feet Mar. 27 (gage height, 1.02 

 feet); minimum dally, 26 second-feet Sept. 16, 17, 19.

1938-40: Maximum discharge, 1,530 second-feet Mar. 24, 1939 (gage height, 2.93

feet), from rating curve extended above 1,000 second-feet; minimum dally, that of

Sept. 16, 17, 19, 1940.

Remarks.- Records fair. Diversions above station for Irrigation.

Discharge, in second-feet, water year October 19.39 to September 1940

Day

1

2

Z

4

5

6

7

S

9

10

11

12

13

14

15

16

17

18

19

SO

21

22

23

24

25

26

27

28

29

30

31

Oct.

50

47

46

45

46

45

45

46

46

51

51

48

48

52

56

59

57

57

59

60

65

65

63

65

65

73

89

83

76

76

80

Hov.

87

87

91

94

89

9.8

112

103

101

101

96

101

109

103

98

89

80

87

83

80

83

83

87

87

89

89

96

96

87

83

-

Dec.

83

83

83

85

89

89

92

94

96

91

91

93

76

68

73

78

87

89

80

73

64

62

64

62

62

63

56

52

52

55

58

Jan.

56

59

59

65

65

65

64

58

61

61

62

64

62

60

60

58

57

60

65

64

54

56

58

61

64

64

67

64

58

61

64

Feb.

68

76

76

73

70

68

67

68

70

68

68

68

70

68

67

67

70

70

70

68

68

67

67

67

67

67

65

65

68

_

-

Month

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

Calendar year 1939. .....................

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

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

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

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

Hater year 1939-4

Mar.

68

68

72

72

73

73

72

72

75

78

80

82

78

80

80

78

87

91

98

109

114

138

158

173

193

230

276

269

227

213

220

Apr.

237

224

183

158

158

164

155

140

138

135

126

116

118

132

158

170

161

143

138

132

135

140

138

135

132

129

118

114

107

103

Secondfoot-days

1,814

2,769

2,340

57,208

1,896

1,990

4J337

2,924

2 027

1,581

2,140

1,078

28,693

May

103

94

87

78

59

55

44

31

30

34

48

59

75

85

92

109

116

152

132

111

149

203

183

135

111

98

103

89

85

89

87

Maximum

89

112

96

1,080

67

76

27 6

203

94

70

49

276

June

94

94

94

89

83

83

82

72

73

72

68

64

59

59

59

59

58

61

67

68

68

68

61

55

56

58

58

51

47

47

-

July

44

46

44

46

46

46

43

44

46

47

46

43

46

46

49

51

55

56

54

49

48

51

52

52

55

55

56

61

64

70

70

Minimum

45

80

52

39

54

65

68

103

30

47

43

56

26

26

Aiig.

62

61

61

58

58

62

75

80

82

78

76

72

72

70

67

67

64

62

67

70

75

67

64

65

73

78

80

78

75

65

56

Mean

58.5

75.5

157

68 6

122

145

94,3

5llo

35^9

78 4

Sept.

49

47

46

46

43

41

40

38

38

38

36

31

30

30

28

26

26

27

26

27

28

29

30

32

37

38

41

41

43

46

Run-off i»

acre-feet

3,600

5,490

4,640

113,500

3 ,760 

3,950

7,530 

8,600

5,800

4,020

3,140 

4 240

2*140

56,910

Note.- Stage-discharge relation affected by ice Dec. 27-30, Jan. 13 to Feb. 2.

9-832 February 1936

UNITED STATES DEPAff EKT OP THE INTERIOR 

Qeologl 1 Survey
, TRIBUTARIES ABOVE GREEN RIVER '°

Quartz Creek near Ohio, Colo.

Location.- Water-stage recorder, lat. 38°34', long. 106°38', in SWi sec. 27, T. 50 N., R. 

3 &., half a mile downstream from Willow Creek and 1 mile southwest of Ohio.

Drainage area.- 101 square miles.

Records available.- April 1938 to September 1940.

Extremes.- Maximum discharge during year, 149 second-feet May 16 (gage height, 1.54 feet); 

minimum daily, 10 second-feet Feb. 6, Sept. 16, 17.

1938-40: Maximum discharge, 572 second-feet May 30, 1938 (gage telght, 2.71 feet); 

minimum daily, that of Feb. 6, Sept. 16, 17, 1940.

Remarks.- Records good except those for periods of ice effect, which are fair. Small dlversions above station for Irrigation. Slight regulation by power plant 3 miles above 

station.

Discharge, in second-feet, water ysar October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

18 

17

16 

16 

16 

17 

16

18 

19 

20 

20 

21

22 

21 

20 

20

19

20 

19 

19 

19 

19

21 

20 

18 

20 

20 

21

HOT.

22 

22 

20 

20 

20

22 

21 

21 

23 

22

22 

24 

27 

23 

20

18 

17 

17 

17 

19

19 

19 

20 

20 

19

19 

20 

18 

17 

16

Dec.

17 

16 

16 

16 

17

*17 

17 

17 

18 

18

19 

18 

16 

17 

17

18 

17 

17 

16 

17

17 

17 

17 

18 

17

16 

15 

14 

14 

15 

16

Jan.

18 

19 

19 

18 

18

17 

16 

16 

17 

18

19 

*19 

15 

13 

13

13 

13 

14 

12 

12

13 

12 

12 

12 

12

12 

13 

13 

12 

12 

11

Feb.

12 

13 

13 

13 

11

10 

11 

11 

*11 

11

12 

11 

11 

11 

12

13 

12 

12 

13 

15

15 

15 

15 

17 

17

17 

20 

21 

22

Month

Dot 

HOD

Dec

C

Jan 

Fet 

Mar 

Apr 

Ma9 

Jim 

Jul 

Aug 

Sep

H

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

alendar year

11.....................................

ater year 1939-4

Mar.

22 

21 

20

21

20 

24 

25 

22 

19

22 

23 

22 

21 

21

21 

22 

22 

22 

22

22 

23 

23 

24 

24

23 

22 

22 

21 

22 

24

Apr.

27 

27 

26 

25 

27

25 

24 

24 

24 

22

22 

23 

26 

29 

36

32 

28 

32 

39 

43

46 

48 

48 

50 

44

42 

42 

39 

36 

34

Secondfoot-days

591 

604

517

_

453 

397 

684 

990 

2,637 

1,638 

619 

633 

611

10.,374

May

32

37 

45 

53 

57

62 

77 

79 

83 

100

110 

100 

90 

100 

110

130 

132 

104 

84 

84

86 

72 

63 

79 

81

84 

92 

92 

100 

104 

115

Maximm

22 

27

19

_

19 

22 

25 

50 

132 

110 

 27 

25 

42

132

June

110 

104 

96 

92 

90

79 

72 

69 

63

57

55 

53 

50 

50 

50

49 

48 

48 

46 

47

42 

37 

36 

32 

31

29 

30 

24 

24 

25

JulT

27 

24 

22 

19 

22

22 

20 

20 

18 

IB

IB 

IB 

16 

16 

20

24 

26 

25 

21 

17

18 

18 

31 

21 

18

18 

19 

20 

19

17 

17

Minimum

16 

16 

14

_

11 

10 

19 

22 

32 

24 

16 

15 

10

10

Aug.

15 

17 

17 

18 

20

20 

24 

24 

24 

25

23 

24 

19 

18 

IS

18 

18 

19 

20 

20

21 

22 

23 

24 

22

22 

22 

21 

20 

18 

17

Mean

19.1 

20.1 

16.7

_

14.6 

13.7 

22.1 

33.0 

85.1 

54.6 

20.0 

20.4 

20.4

28.3

Sept.

17 

16 

15 

16 

15

15 

14 

12 

19 

16

13 

12 

14 

13 

12

10 

10 

12 

18 

20

22 

28 

36 

42 

36

30 

30 

30 

32 

36

Run-off in 

acre-feet

1,170 

1,200 

1,030

_

899 

787 

1,360 

1,960 

5,230 

3,250 

1,230 

1,260 

1,210

20,590

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 15 to Feb. 29, Mar. 13-P4.

9-292 February 1936

UNITED STATES DEP/TMENT OF THE INTERIOR 

Qeolo. cal Surrey
74 TRIBUTARIES ABOVE GREEN RIVER

Cebolla Creek at Powderhorn, Colo.

Location.- Water-stage recorder, lat. 38°17'30", long. 107°07'00", In SEi 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 1940.

Extremes.- Maximum discharge during year, 229 second-feet May 12 (gage height, 1.22 feet); 

minimum dally, 22 second-feet July 14.

1938-40: Maximum discharge, 1,060 second-feet May 29, 1938 (gage height, 2.40 

feet), from rating curve extended above 700 second-feet; minimum dally, that of July 

14, 1940.

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

whlcn are fair. Diversions above station for Irrigation.

Rating tables, water year 1939-40, except period of ice effect (gage height, In feet, and discharge,

in second-feet) 

(Shifting-control method used Oct. 26 to Nov. 13, Sept. 21-30

Oct. 1 to Mar. 8

0.5 

.6

32

42

60

Mar. 9 to Sept. 30 

22 0.7

28

38

50

88

114

180

Discharge, In second-feet, water year October 1939 to September 1940

Pay

1

2

3

4

5

6

7

8

9

10

11

IS

13

14

15

16

17

18

19

80

81

22

83

84

25

86

27

88

29

SO

31

Oct.

46

44

42

39

40

41

41

42

44

41

42

42

41

41

41

41

44

42

44

41

40

41

44

42

44

55

49

44

51

47

56

Sov.

55

47

44

41

42

51

40

40

49

37

37

41

40

37

38

40

41

42

40

38

38

40

43

44

45

43

42

41

45

49

-

Dec.

51

52

57

54

54

54

 55

55

55

55

51

50

49

50

50

49

48

46

45

43

45

47

47

48

47

43

38

35

36

38

40

Jan.

42

42

42

43

43

42

38

36

38

39

«39

38

35

31

31

32

34

34

33

35

35

34

34

35

36

37

37

36

36

37

38

Feb.

39

38

36

35

34

34

34

 35

35

35

34

33

33

34

34

33

33

33

34

34

32

32

33

32

31

32

34

34

33

_

-

Month

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

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

toy.......................................

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

W«t«r year 1939-4

Mar.

33

32

32

32

32

32

31

31

»31

31

31

31

31

32

33

33

33

32

31

32

33

35

36

38

39

41

44

43

39

38

39

Apr.

42

40

43

45

49

49

49

45

45

44

50

48

55

70

81

73

64

64

79

93

104

88

84

104

96

96

104

84

73

68

-

Seoondfoot-days

1,352

1,270

1,486

_

1,142

1,061

2,029

3 ,366 

1,645

1,037

1,244 

1,209

17 , 824

Hay

61

66

70

84

84

86

88

79

81

109

156

177

136

156

149

143

153

156

120

114

120

120

109

91

88

96

96

96

93

93

96

Mqy^iMiiH]

56

55

57

_

43

44

104

177

61

49

177

June

96

96

86

79

73

68

66

61

61

55

56

55

52

52

53

52

52

48

46

52

53

53

46

44

38

32

32

31

27

30

-

July

40

37

30

27

26

27

26

26

29

29

29

26

23

22

23

25

27

28

28

28

33

31

36

38

34

37

50

58

61

53

50

Minimum

39

37

35

_

31

31

31

40

61

27

22

33

22

Aug.

45

45

39

38

34

37

42

34

35

36

36

34

32

32

33

32

32

35

46

49

46

44

44

52

49

50

45

43

43

42

40

Mean

43.6

42.3

47.9

36 8

33!9

34.2

109'

3S\5

40.1

40.3

48.7

Sept.

39

38

40

34

34

35

36

37

38

37

36

37

33

33

36

36

36

a46

a47

a45

44

43

44

46

48

46

49

45

43

48

-

Run-off In 

acre-feet

2,680

2,520

2,950

_

2,270

1,950

2,100

4,020

6,680 

3,260

2,060

2,470 

2,400

35,360

 Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Tomichi Creek at Sargents.

Note,.- Stage-discharge relation affected by ice Nov. 14 to Apr. 2.

9-232 February 1936

UNITED STATES DEPAFnJENT OF THE INTERIOR 

Oeolog- J. Surrey
TRIBUTARIES ABOVE GREEN RIVER 75

Lake Fork at Gatevlew, Colo.

Location.- Water-stage recorder, lat. 38°07'50", long. 107°13'25", in sec. 29, T. 47 N., 

R. 3 W., at old village of Gateview, a quarter of a mile upstream from Indian Creek 

and about 15 miles upstream from mouth. Datum of gage is 7,833.02 feet above mean sea 

level (unadjusted).

Drainage area.- 324 square miles.

Records available.- April 1938 to September 1940.

Extremes.- Maximum discharge during year, 1,330 second-feet June 2 (gage height, 2.91 

feet); minimum daily, 31 second-feet Jan. 15, 16.

1938-40: Maximum discharge, 2,620 second-feet June 21, 1938 (gage height, 5.00 

feet), from rating curve extended above 1,700 second-feet; minimum daily, that of Jan. 

15, 16, 1940.

Remarks.- Records excellent except those for period of ice effect, wMch are fair. Diversions above station for irrigation.

Rating tables, water year 1939-40, except period of Ice effect (gage height, in feet, and discharge,

In second-feet)

Oct. 1 to Mar. 29

0.2 

.3

45

60

0.2 

.3 

.5

Mar. 30 to Sept. 30

67

105

0.7 

1.2 

1.7

155

310

510

2.1 

2.5 

2.7

710

980

1,140

Discharge, In second-feet, water year October 1939 to September 1940

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 

51

Oct.

88 

82 

86 

76 

74

73 

69 

71 

71 

71

71 

69 

67

65 

65

65 

62 

64 

58 

56

51 

57 

51 

58 

50

57 

64 

60 

52 

50 

51

Hov.

51 

54

51 

48 

46

50 

46 

45 

51 

48

48 

51 

48 

46 

45

45 

40 

38 

38 

38

37 

35 

35 

36 

37

35 

34 

33 

35 

36

Dec.

37 

37 

36 

36 

35

35 

«34 

34 

34 

33

33 

33 

32 

33 

33

34 

35 

34 

33 

32

33 

35 

37 

39 

37

35 

32 

33 

35 

36 

37

Jan.

38 

38 

38 

38 

36

35 

33 

33 

35 

36

636 

35 

34 

33 

31

31 

32 

33 

35 

37

37 

35 

35 

35 

36

39 

40 

38 

37 

37 

38

Feb.

40 

41 

42 

42 

39

38 

39 

*39 

39 

39

38 

38 

39 

38 

37

37 

37 

38 

37 

37

38 

39 

38 

37 

36

35 

37 

38 

40

Month

Dot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

W

alendar year

ater year 1939-4

Mar.

4G 

40 

39 

40 

38

36 

 38 

43 

42 

36

42 

44 

41 

40 

40

41 

42 

41 

41 

41

42 

44 

47 

49 

49

48 

47 

47 

53 

60 

60

Apr.

61 

55 

54 

54 

56

56 

58

56 

55 

55

54 

54 

55 

64 

81

85 

80 

80 

93 

120

167 

197 

209 

230 

236

251 

269 

236 

206 

200

Seoondf cot-days

2,004 

1,280 

1,072

_

1,104 

1,112 

1,351 

3,527 

17,257 

18,157 

5,722 

2,703 

2,635

57,924

May

155 

155 

179 

245 

300

310 

365 

393 

449 

560

672 

728 

746 

740 

746

752 

790 

625 

478 

429

413 

381 

413 

501 

610

688 

722 

849 

905 

898 

1,060

Maximum

88 

54 

39

_

40 

42 

60 

269 

1,060 

1,130 

310 

105 

120

1,130

June

1,130 

1,120 

1,040 

884 

828

699 

640 

635 

600 

514

532 

575 

635 

688

699

595 

615 

575 

537 

537

510 

501 

474 

453 

413

385 

365 

334 

324 

320

July

310 

303 

292 

269 

248

233 

218 

209 

203 

191

182 

173 

167 

164 

161

161 

152 

150 

145 

197

278 

188 

130 

145 

130

128 

125 

120 

120 

118 

112

Minimum

50 

33 

32

_

31 

35 

36 

54 

155 

320 

112 

67 

67

31

Aug.

105 

99 

99 

91 

91

91 

93 

91 

85 

83

81 

74 

74 

67 

72

74 

74 

71 

78 

93

93 

89 

85 

93 

103

99 

97 

93 

91

89 

85

Mean

64.6 

42.7 

34.6

_

35.6 

38.3 

43.6 

118 

557 

605 

185 

87.2 

87.8

158

Sept.

81 

80 

83 

80 

78

76 

74 

76 

72 

69

69 

67 

72 

69 

67

67 

69 

80 

103 

108

105 

110 

115 

118 

120

105 

108 

105 

101 

108

Run-off in 

acre-feet

3,970 

2,540 

2,130

_

2,190 

2,210 

2,680 

7,000 

34,230 

36,010 

11,350 

5,360 

5,230

114,900

Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Hov. 17 to Mar. 29.

400453 0-41-6 0 SJATESsDERARMHIT S». THE HPTKBIOR 

 ^ OeWf car-Survey- ' ^~
76 TRIBUTARIES ABOVE GREEN RIVER

North Fork of Gunnlson River near Somerset, Colo.

Location.- Water-stage recorder, lat. 38°56', long. 107°26', In sec. 10, T. 1? S., R. 90 

w., £ miles east of Somerset.

Drainage area.- 521 square miles.

Records available.- March 1934 to September 1940.

Extremes.- Maximum discharge during year, 2,790 second-feet May 12 (gage height, 4.24 

reet;; minimum daily, 35 second-feet Jan. 15.

1934-40: Maximum discharge, 5,360 second-feet Apr. 30, May 16, 1938, from rating 

curve extended above 2,800 second-feet; maximum gage height, 5.62 feet May 16, 1938; 

minimum dally discharge, 28 second-feet Sept. 19, 1934.

Remarks.- Records excellent except those for periods of ice effect, which are good. Dlversions above station for irrigation.

Rating table, water year 1939-40,except periods of ice effect (gage height, In feet, and discharge,

in aecond-feet)

1.1

1.2 

1.6

76

100

228

1.9 

2.2 

2.4

350

500

630

2,7 

3.7 

4.1

900

2,080

2,600

Discharge, tn second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

86 

78 

73 

81 

81

78 

76 

81 

90 

88

88 

86 

83 

83 

81

78 

75 

73 

72 

70

69 

69 

69 

68 

68

78 

83 

69 

73 

68 

69

lov.

70 

69 

69 

68 

68

70 

69 

65 

69 

63

57 

62 

63 

62 

60

52 

50 

49 

49 

62

56 

57 

66 

70 

68

69 

78 

66 

65 

57

Dec.

58 

56 

56 

55 

55

54 

57 

58 

62 

62

60 

60 

40 

50 

48

56 

55 

57 

44 

48

49 

52 

50 

51 

51

52 

44 

37 

45 

50 

55

Jan.

54 

52 

52 

52 

52

52 

54 

50 

45 

 43

43 

44 

43 

42 

35

39 

40 

41 

40

39

39 

41 

40 

40 

47

50 

54 

50 

50 

51 

54

Feb.

55 

57 

57 

55 

54

50 

56 

50 

55 

55

55 

52 

54 

57 

56

50 

48 

51 

56 

50

48 

56 

54 

54 

54

56 

58 

58 

62

Month

Dot 

lov 

Dec

C

Jan 

Pel) 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

W

uary

ater year 1939-4

Mar.

68 

65 

63 

62 

66

72 

66 

68 

72 

73

75 

66 

62 

55 

60

73 

93 

83 

103 

118

136 

168 

208 

243 

274

298 

324 

298 

232 

194 

211

Apr.

236 

236 

197 

194 

225

282 

251 

228 

218 

204

172 

159 

188 

298 

457

500 

416 

411 

560 

870

1,160 

1,310 

1,350 

1,490 

1,470

1,610 

1,680 

1,430 

1,160 

922

Seoondfoot-days

2,384 

1,898 

1,627

130,229

1,428 

1,573 

4,049 

19,884 

55,603 

22,679 

4,514 

2,249 

2,612

120,500

May

810 

933 

1,360 

1,920 

2,020

1,950 

2,030 

1,980 

2,160 

2,380

2,470 

2,500 

2,460 

2,310 

2,070

2,170 

2,080 

1,710 

1,600 

1,500

1,530 

1,380 

1,360 

1,440 

1,580

1,670 

1,670 

1,610 

1,620 

1,620 

1,710

Mn^niuni

90 

78 

62

2,430

54 

62 

324 

1,680 

2,500 

1,680 

262 

115 

181

2,500

June

1,680 

1,600 

1,500 

1,360 

1,220

1,090 

922 

900 

746 

638

678 

773 

820 

870 

860

764 

728 

678 

609 

560

518 

489 

446 

406 

359

337 

302 

286 

274 

266

July

262 

243 

221 

211 

201

186 

175 

168 

159 

146

140 

133 

124 

121 

136

159 

143 

136 

115 

109

127 

124 

124 

121 

112

109 

112 

124 

98 

90 

83

Minimum

68 

49 

37

37

35 

48 

55 

159 

810 

266 

83 

63 

55

35

Aup.

78 

75 

72 

69 

68

70 

78 

73 

69 

68

68 

65 

68 

68 

68

65 

63 

63 

65 

81

68 

66 

63 

70 

83

115 

93 

86 

76 

70 

65

Sept.

63 

63 

62 

61 

60

58 

57 

56 

55 

55

55 

55 

60 

62 

61

60 

68 

88 

103 

124

109 

159 

143 

143 

118

112 

95 

90 

136 

181

v..*. Run-off in 

"ean acre-feet

76.9 4,730 

63.3 3,760 

52.5 ,3,230

357 258,300

46.1 2,830 

54.2 3,120 

131 8,030 

663 39,440 

1,794 110,300 

756 44,980 

146 8,950 

72.5 4,460 

87.1 5,180

329 ! 239,000

|

 Winter discharge measurement made on thia day.

Hote.- Stage-discharge relation affected by ice Dee. 27-30, Jan. 8-26.

tf-232 February 1936

UNITED STATES DEPAFIn«EHT OP THE INTERIOR 

Qeolog. il Surrey
TRIBUTARIES ABOVE GREEN RIVER 

East Muddy Creek near Bardine, Colo.

77

Location.- Water-stage recorder, lat. 39°01', long. 107°22', In sec. 17, T. 12 S., R. 

89 W., a quarter of a mile downstream from Spring Creek and 6i miles upstream from 

Bardine .

Drainage area.- 136 square miles.

Records available.- my 1935 to September 1940.

Extremes.- Maximum discharge during year, 720 second-feet May 9 (gage height, 2.25 feet); 

minimum dally, 7.2 second-feet Sept. 9-12, but may have been less during period of no 

record.

1935-40: Maximum discharge, 1,330 second-feet Apr. 30, 1938 (fage height, 2.88 

feet), from rating curve extended above 550 second-feet; minimum ("ally, 6 second-feet 

Aug. 28, 1936.

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

and those below 10 second-feet, which are fair. Diversions above station for 

Irrigation.

Discharge, In second-feet; water year October 1939 to September 1940

Day

1

2

s

4

S

6

7

8

9

10

11

18

IS

14

IS

16

17

18

19

20

2122

23

84

85

86

27

28

29

90

31

Oct.

13

11

11

11

13

11

11

15

16

14

13

13

13

13

13

13

13

13

11

11

11

13

11

11

11

18

IS

15

14

15

14

HOT.

14

14

14

13

14

14

13

13

13

14

14

14

14

14

14

14

15

16

15

14

14

15

18

15

16

14

11

13

11

13

-

Dec.

16

14

14

14

11

11

13

*14

14

14

14

14

9

11

12

13

13

13

10

11

12

12

12

12

12

12

11

9

10

11

13

Jan. Feb.

Month

Deoenbar. .................................

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

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

Ifay......... ..............................

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

Water year

Mar.

a!2

a!2

a!2

all

al2

a!3

al2

al2

a!3

a!3

al4

alS

all

alO

al2

al4

a!7

al5

a!9

a21

a24

a29

a35

a45

a52

56

60

54

44

40

46

Apr.

4S

46

42

40

46

50

48

46

44

42

3S

36

40

54

79

108

81

72

94

150

201

248

270

232

SOS

313

333

284

224

190

-

Seoondfoot-days

403

420

381

_

753

3 ,807

10,092

483

470.4

400.4

-

May

173

212

323

469

530

496

496

456

510

496

4S9

489

516

482

420

420

359

29S

266

240

22S

201

1S7

1S3

180

1S3

176

157

160

150

147

Maximum

18

18

16

_

60

333

530

138

27

23

36

-

June

138

135

126

111

100

94

SI

76

72

64

62

62

62

56

56

52

50

48

46

42

40

3S

36

31

27

25

25

22

22

25

-

July

27

27

23

22

20

20

20

19

IS

15

15

15

14

13

11

11

11

13

14

13

13

11

11

13

14

13

a!3

B16

al4

al3

all

IHTijrniim

11

11

g

_

10 

36

147

22

11

9.4 

7.2

-

Aug.

a!2

a!6

a!8

alS

a!7

a!9

19

16

15

15

15

14

13

13

13

13

11

13

14

14

14

14

15

19

22

23

19

14

13

10

9.4

Mean

13.0

14.0

IS* 3

_

24*3

12V

326

60*8

15.6

15.2 

13.3

-

Sept.

9.4

8.9

S.9

S.9

8.4

8.4

7.8

7.8

7.2

7.2

7.2

7.2

9.4

11

9.4

S.9

9.4

20

19

20

IS

22

19

19

16

16

14

14

22

36

-

Run-off In 

acre-feet

833

756

_

""

1 ,400

7,550

20,020 

3,620

958

933

794

-

 Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for North 

near Somerset.

Note . - Stage-discharge relation affected by ice Dec. 8-31.

o"k of Ounnlson River

9-258 February 1936

UNITED STATES DEPAFTIEHT OF TEE INTERIOR 

Oeolog. il Surrey
78 TRIBUTARIES ABOVE GREEN RIVER

Leroux Creek near Cedaredge, Colo.

Location.- Water-stage recorder, lat. 38°55', long. 107°48', in sec. 16, T. 13 S., R. 93 

W., £00 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 1940.

Extremes.- Maximum discharge during year, 825 second-feet May 9 (gage height, 4.48 feet); 

minimum daily, 3.6 second-feet Mar. 13, but may have been less during period of no record.

1936-40: Maximum discharge, 1,120 second-feet May 28, 1938 (gage height, 5.01 feet), 

from rating curve extended above 550 second-feet; minimum daily, that of Mar. 13, 1940, 

but may have been less during periods of no record.

Remarks.- Records excellent except those below 10 second-feet, which are gocd, and those 

for periods of no gage-height record, which are fair. No records Dec. 1 to Feb. 29. 

One small diversion and several small reservoirs above station for irrigation.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Oct. 11 to Nov. 25)

1.0

1.1

4.2 

5.8 

7.8 

10.2

1.2

1.4

1.5 

1.7

13.4

21.4

2.0 

2.2 

2.4 

2.7

128

190

3.4 

3.6 

3.9

426

546

Discharge, In second-feet, water year October 1939 to September 1940

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.

7.4

6.8 

6.4 

6.6 

6.8

8.0 

7.0 

7.2 

7.6 

6.6

8.5 

8.0 

7.6 

7.0 

6.2

7.0 

7.0 

6.8 

7.0

6.6

6.2 

5.6 

5.5 

6.0 

7.0

7.0 

7.6 

7.0 

8.0 

6.0 

7.8

Hov.

9.2 

9.2 

9.7

8.5 

8.0

8.3 

7.0 

6.6 

7.6 

5.0

8.0 

8.5 

7.2 

6.8 

6.8

6.4 

6.2 

5.5 

5.2 

7.4

7.8 

7.0 

6.4 

6.6 

6.4

6.4 

6.2 

7.2 

8.4 

7.5

Dec. Jan. Feb.

Month

Oct 

Hoy

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year

ater yea

liar.

4.2 

4.1 

3.9 

3.B 

4.0

4.4 

4.0 

4.1 

4.4

4.6

4.6 

4.2 

3.6 

4.0 

4.7

5.4 

5.8 

5.3 

7.0 

8.6

11 

12 

14 

16 

19

20 

19 

16 

13 

12 

13

Apr.

13 

11 

12 

11 

14

16 

16 

15 

13 

12

11

13 

19 

36 

46

38 

31 

37 

61 

93

123 

144 

170 

168 

144

166 

179 

136

96 

BO

Seoondfoot-days

215.8 

217.0

-

259.7 

1,924 

8,299 

1,207 

633 

524 

569.2

-

May

84 

114 

164 

269 

323

3B6 

377 

346 

464 

521

437 

409 

484 

460 

419

416 

300 

260 

245 

212

190 

172 

172 

164 

160

156 

140 

124 

117 

112 

102

Maximum

8.5 

9.7

-

20 

179 

521 

108 

31 

24 

52

-

June

108 

79 

72

66 

62

59 

54 

50 

44 

38

34 

32 

30 

28 

27

28 

27 

26 

25 

27

31 

30 

30 

26 

27

27 

30 

29 

29 

32

July

31 

27 

25

21

21 

21 

20 

23 

23

23 

24 

23 

22 

21

20 

21 

21 

20 

19

17 

16 

17 

17 

17

17 

16 

21 

17 

16 

13

Minimum

5.5 

5.0

-

3.6 

11 

84 

25 

13 

11 

5.6

-

Aug.

15 

19 

20 

20 

19

21 

20

18 

16

19 

14 

15 

15

18

18 

15 

12 

12 

13

13 

16 

IB 

18 

20

24 

24 

17 

13 

11 

12

Mean

6.96 

7.23

-

8.38 

64.1 

268 

40.2 

20.4 

16.9 

19.0

-

Sept.

12 

10 

9.7 

10 

10

9)2

8.'s 

6.8

6.0 

5.6 

8.8 

9.0 

8.0

7.2 

9.7 

52 

52 

34

27 

32 

30 

30 

21

21 

19 

17 

36 

49

Run-off in 

acre-feet

428 

430

-

515 

3,820 

16,460 

2,390 

1,260 

1,040 

1,130

-

Note.- Ho gage-height record Nov. 26-3O, Mar. 1-25; discharge computed on basis of weather records and records for station on North Pork of Ounnison near Somerset.

'} -232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeoloj. ;al Survey
TRIBUTARIES ABOVE GREEN RIVER 79

Surface Creek above Cedaredge, Colo.

Location.- Water-stage recorder, lat. 38°59', long. 107°51', in NWiNWi sec. 12, T. 12 S., 

K. 94 W., 1 mile downstream from Caesar Creek and 8i miles northeaet of Cedaredge.

Drainage area.- 28.5 square miles.

Records available.- June 1939 to September 1940.

Extremes.- Maximum discharge during year, 293 second-feet May 6 (gage height, 2.66 feet); 

minimum, 6.1 second-feet Dec. 5 (discharge measurement), probably lower during period 

of no record.

1939-40: Maximum discharge, that of May 6, 1940; minimum daily, 5.8 second-feet 

Sept. 23, 1939, but probably lower during periods of no record.

Remarks.- Records excellent except those for periods of no gage-height record and those 

Apr. 12 to May 5, which are fair. No records Nov. 1 to Mar. 31. Discharge regulated 

by many small reservoirs.

Rating table for period Bay 5 to Sept. 30, 1940 (gage height, In feet, and discharge, In second-feet) 

(ShiftIng-control method used Sept. 30)

1.1

1.2 

1.6

1.7

1.8 

2.0

2.1

2.2 

2.4

138

161

215

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

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

oot.

14 

14 

17 

17 

15

16 

14 

14 

13 

12

11 

11 

12 

10

9.8

8.6 

7.4 

8.5 

11 

9.0

7.6 

9.0 

10 

13 

13

14 

15 

13 

13 

11 

8.5

HOT. Dec. Jan. Feb.

Month

Oet 

Hot

Dec

C

Jan 

Feb 

Mar 

Apr

fj 

Jun

Jul 

Aug 

Sep

V

alendar year

tin. ............. ........... ..

11.....................................

ater yea

Mar. Apr.

7.0 

6.5 

6.5 

7.0 

8.2

9.5 

13 

11 

8.2 

7.0

6.5 

9.4 

12 

24 

34

29 

23 

27 

46 

71

103 

116 

116 

125 

111

131 

111 

69 

51 

49

Secondfoot-days

371.4

-

1,347.8 

4,061 

2,224

'957.6 

783

-

May

54 

75 

109 

169 

185

196 

164 

159 

185 

188

174 

164 

174 

164 

145

136 

116 

113

96 

96

113 

109 

109 

111 

109

119 

IIP 

116 

108 

106 

98

Ma^

17

-

131 

196 

106 

63 

52 

59

-

June

88 

98 

96 

102 

106

100 

96 

98 

96 

67

62 

69 

68 

65 

61

56 

55 

66 

59 

53

52 

59 

54 

60 

60

82 

85 

74 

75 

62

July

59 

56 

54 

57 

57

60 

61 

60 

59 

62

63 

52 

56 

51 

52

59 

59 

56 

55 

42

37 

43 

42 

34

34

34 

38 

40 

34 

42 

43

Minium

7.4

_

6.5 

54 

52 

34 

9.6 

16

-

Aug.

28 

37 

37 

23 

21

38 

42 

36 

34 

24

21 

27 

28 

41 

45

52 

48 

39 

37 

31

23 

23 

23 

27 

29

34 

29 

16 

9.6 

23 

32

Mean

12.0

_

44.9 

132 

74.1 

50.0 

30.9 

26.1

-

Sept.

34 

33 

21 

21 

18

20 

18 

23 

23 

19

17 

17 

22 

20 

18

16 

22 

59 

43 

24

20 

28 

35 

33 

2S

22 

20 

20 

42 

47

Run-off in 

acre- feet

737

_

2,670 

8,090 

4,410 

3,080 

1,900

-

Hote.- Ho gage-height record Oct. 

station at Cedaredge.

16-31, Apr. 1-11; discharge computed on besls of records for

8-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolofc. al Surrey
80 TRIBUTARIES ABOVE GREEN RIVER 

Surface Creek at Cedaredge, Colo.

Location.- Water-stage recorder and concrete control, lat. 38°52', long. 107°55', In 

 Sec. 20, T. 13 S., R. 94 W., at Cedaredge.

Drainage area.- 43 square miles.

Records available.- May 1917 to September 1927 and October 1933 to September 1940 in

reports or Geological Survey. May 1917 to September 1940 in reports of State engineer.

Average discharge.- 23 years, 30.8 second-feet.

Extremes.- Maximum discharge during year, 224 second-feet Apr. 26 (gage height, 1.34 

feet); minimum daily, 0.2 second-foot Dec. 30; but may have been lower during period 

of ice effect.

1917-40: Maximum discharge, 715 second-feet May 24, 1920 (gage height, 1.95 feet); 

no flow Sept. 25, 1939, and practically no flow at times during some winters.

Remarks.- Records good except those for period of ice effect, wtilch are fair. Flow 

regulated by many reservoirs. Water Is diverted Into Surface Creek Basin from adjacent streams. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

s

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

51

Oct.

9.0

9.0

8.4

6.6

4.6

4.2

3.7

4.6

6.0

6.6

7.8

7.8

7.8

7.2

5.1

4.6

3.7

5,1

6.6

6.1

3.2

5.5

7.2

8.4

7.8

9.0

8.4

6.6

7.2

6.0

4.6

Hov.

5.1

5.5

5.5

5.5

4.6

4.2

2.3

2,3

2.3

2.3

2.8

2.8

3.2

3.7

4.2

3.2

1.9

3.2

3.7

4.2

3.7

3,2

1.9

1.9

2.3

1.9

1.4

1.1

1.0

1.0

Dec.

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.0

.8

.8

.7

.8

1.1

2.3

1.4

1.4

1.3

1.1

1.0

.9

.8

.8

.7

.7

.8

.7

.6

.4

.3

.2

.3

Jan.

(*)

 0.4

>

Feb.

<*)

 0.35

i

-

Month

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

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

to?..... ..................................

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

Water year 1939-4

Mar.

0.9

.9

.8

.9

1.0

.8

1.0

1.0

.8

.8

.8

.8

1.4

1.3

1.1

.8

.7

.7

.8

1.4

g g

4.6

7.2

9.6

16

15

11

9.0

7.8

6.1

5.5

Apr.

7.2

6.6

6.6

7.2

8.4

9.6

13

11

8.4

7.2

6.0

7.2

11

25

36

28

22

27

61

81

105

112

102

112

91

128

100

79

65

64

-

Seoondfoot-days

197.4

91.9

28.5

6,111.6

12.4

10.2

111«8

1,357.4

2,386

1,030

566.1

310.6 

414.2

6,496.5

May

72

86

91

118

118

115

105

95

116

102

89

77

86

77

64

57

52

56

6V

56

69

61

64

6£

5S

61

69

66

64

6£

69

Maximum

9 0

c c s',3

91

16

128

118

61

29

17 

37

128

June

54

61

59

57

61

54

48

46

46

38

36

35

30

29

28

23

20

23

18

18

21

23

21

17

16

30

34

2E

3C

26

July

25

21

20

18

16

21

25

28

27

21

18

19

24

25

25

28

29

24

21

10

5.6

10

9.6

6.0

9.0

10

12

20

16

12

11

IHYi^mmq

3 »2

1.0

.2

0

_

.7

6,0

53

16

5.5

3.2 

1.9

-

Aug.

10

11

9.0

9 e'.6C

11

9.0

11

12

10

9.0

9.6

9.6

8.4

7.8

15

14

9.6

9.C

11

7.£

6.6

6.6

12

16

17

16

10

4.£

3.£

6.6

Mean

6.37

3.06

.92

16.7

.40

.35

3.61

44.6

77.0

34.3

18.3

10.0 

13.8

17.8

Sept.

13

15

12

10

9.6

5.5

3.2

10

11

11

10

7.8

10

6.0

2.8

1.8

8.4

37

23

15

14

16

17

21

18

16

13

13

27

37

-

Run-off in 

acre-feet

392

182

57

12,130

25

20

222

2,650

4,730

2,040

1,120

616 

822

12,880

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dec. 19 to Mar. 4.

9-282 February 1936

TOUTED STATES DEPART»"?HT OP THE INTERIOR 

Oeologic . Surrey
TRIBUTARIES ABOVE GREEN RIVER 

Uncompahgr.e River at Colona, Colo.

Location.- Water-stage recorder, lat. 38°19'50", long. 107°46'40", in M'i sec. 17, T. 

47 N., R. 8 W., a quarter of a mile east of Colona.

Drainage area.- 437 square miles.

Records available.- March 1935 to September 1940. April 1903 to June 1906 and April 

1917 to November 1934, at site 3 miles upstream.

Extremes.- Maximum discharge during year, 1,850 second-feet June 1 (gage height, 3.08 

feet); minimum daily, 40 second-feet Aug. 35.

1903-6, 1917-40: Maximum discharge, 4,080 second-feet June 13, 14, 1921; minimum, 

16 second-feet Sept. 3, 1918.

Remarks_.- Records good except those for periods of ice effect, which are fair. Diversloris above station for irrigation.

Cooperation.- Gage heights and results of most of discharge measurements furnished by 

Uncompahgre Valley Water Users' Association.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

83

83

79

70

66

68

62

68

74

66

70

68

64

60

58

56

56

54

58

60

62

62

66

68

68

74

72

70

74

72

70

Nov.

7S

70

64

64

64

64

64

62

68

77

81

88

90

85

81

79

77

70

74

72

74

74

81

81

79

81

81

81

79

79

Dec.

77

81

81

81

81

81

81

77

77

77

77

77

68

72

72

72

72

70

66

*68

72

66

62

68

74

70

#52

50

58

64

72

Jan.

77

74

77

77

77

77

74

74

74

72

72

74

72

58

47

58

60

61

60

*59

60

64

62

61

82

93

90

88

86

84

88

Feb.

92

78

72

72

72

75

78

78

82

70

75

78

72

62

66

70

65

62

66

62

66

70

70

70

70

75

78

78

92

_

-

Month

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

April. . ................................... IT ... .................................

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

Water year 1939-4

Mar.

100

86

86

82

82

86

78

86

96

118

118

96

78

72

78

92

126

126

138

150

180

195

224

236

266

248

236

224

175

160

185

Apr.

190

155

142

138

146

170

155

146

142

146

134

134

155

260

302

296

248

230

348

497

632

533

524

515

497

578

551

376

302

278

-

Secondfoot-days

2*081

2,256

2*216

74,108

2,232

2,116 

4,303

8,920

21,934

33 £ 366

5,107 

2 224

3,846

80,503

May

302

341

470

641

614

578

632

596

740

856

820

856

784

856

883

811

856

643

508

466

472

460

508

594

722

775

820

950

1,02C

1,120

1,240

Maximum

So

81

938

93

92

266

632

1,240

1,350

376

125

290

1,350

June

1,350

1,340

1,200

1,060

1,000

856

811

829

748

690

766

811

910

1,040

980

838

865

856

802

706

636

608

562

532

478

466

418

370

358

382

-

July

376

318

302

275

270

240

219

207

207

195

178

156

142

142

136

139

132

150

132

120

118

112

102

106

100

98

96

90

94

82

74

Minimum

54

62

50

50

47

62

72

134

302

358

74

40

58

40

Aug.

68

66

66

64

62

64

62

57

54

54

51

50

50

44

40

46

51

51

57

112

86

74

74

88

12E

12S

HE

96

94

88

88

Mean

67.1

75 2

7l!s

203

72.0

73 O

139

297

708

776

165

71.7

128

820

Sept.

80

72

82

80

78

72

78

74

68

64

62

62

70

66

62

58

76

195

203

192

174

227

235

215

19£

181

164

167

207

290

~

Run-off in 

acre-feet

4,130

4,470

4,400

147,000

4,430

4,200

8,530

17,690

43,510

46,150

10,130

4,410

7,630

159,700

Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Dec. 20-27, 30, 31, Jan. 17-31, Feb. 13-15, 18-2S.

9-232 February 1936

UHITED STATES DKPAPnTtEHT OF THE IHTERIOR 

Qeolog. J. Surrey
82 TRIBUTARIES ABOVE GREEN RIVER

Uncompahgre River at Delta, Colo.

Location.- Water-stage recorder, lat. 38°45', long 108°05', in SWi sec. 13, T. 15 S., 

R. 96 W., at west edge of Delta, !$ miles upstream from mouth.

Drainage area.- 1,110 square miles.

Records available.- April 1924 to September 1931, September 1938 to September 1940. 

April 1903 to October 1923 at site 3i miles upstream.

Extremes.- Maximum discharge during year, 1,980 second-feet Sept. 30 (gage height, 4.25 

feet), from rating curve extended above 1,400 second-feet; minimum'daily, 65 secondfeet Apr. 13.

1903-31, 1938-40: Maximum discharge, 2,880 second-feet June 29, 1927 (gage height, 

5.93 feet), from rating curve extended above 1,400 second-feet; minimum dally, 7 

second-feet July 10-15, 17, 21, 24-28, 1910.

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

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

18

13

14

15

16

17

18

19

80

81

SS

83

84

25

26

27

88

29

30

31

Oct.

326

32E

310

E40

453

190

268

264

E97

314

318

310

301

305

301

305

301

268

248

22E

E44

2E9

229

218

214

225

248

244

268

E84

289

Hov.

E44

190

173

160

140

153

156

112

120

140

134

137

140

144

144

144

150

156

153

144

160

173

169

173

166

160

160

169

190

153

Dec.

144

134

134

134

150

150

147

144

147

160

150

153

150

140

140

144

153

156

129

122

140

129

129

137

156

140

124

120

117

115

137

Jan.

13 E

132

150

160

173

166

156

144

147

144

137

140

13E

98

94

98

104

108

102

115

132

129

120

132

153

153

147

134

127

1E9

132

Feb.

1E9

137

137

1E9

127

120

124

122

115

115

112

115

96

98

102

100

96

90

96

88

94

104

104

104

108

124

137

129

134

-

Month

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

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

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

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

Water yeari939-4C

Mar.

189

102

96

94

94

96

96

90

90

90

94

87

76

85

85

82

88

92

104

122

94

92

94

94

100

110

79

96

77

80

80

Apr.

106

1E9

163

129

115

169

200

183

147

104

84

73

65

85

183

207

144

102

115

218

448

462

347

322

272

264

301

236

180

23E

-

Secondfoot-days

8,555

4,707 

4,325

73,982

4,120

2 888 5)735

14,695

10,491

4,477

6,192 

10,880

80,395

May

193

193

240

339

443

394

385

377

356

503

494

555

585

555

555

476

615

650

411

310

430

503

476

540

60C

63E

58C

57E

52£

54C

66E

Maximum

453

E44

160

656

173

137

1S9

462

665

750

240

535

996

996

June

750

675

595

411

322

314

E68

385

416

368

347

425

347

289

650

434

335

360

318

310

310

293

260

22E

211

186

180

156

144

207

July

840

193

153

144

132

117

132

134

127

1E2

117

117

120

122

12.4

129

153

153

150

147

153

137

150

150

150

137

127

144

180

163

16C

IHMlimim

190

112

115

87

94

88

76

65

T J.VO Q^ 

144

117

150

65

Aug.

150

132

120

124

1E7

132

137

140

1E7

122

12E

115

110

115

no

112

108

108

127

137

115

127

204

466

476

49S

53E

48C

34;

86£

20-!

Mean

276

3.57

140

203

133

113

93.2

193

474

350

144

200

363

220

Sept.

818

236

229

186

160

150

160

160

160

160

156

153

173

222

297

276

256

389

512

531

535

550

560

620

580

595

555

535

570

996

-

Run-off in 

acre-feet

16,970

9,34C

8,580

146,800

8,170

6,510

5,730

11,470

29,150

20,810

8,880

12,280

21,580

159,500

 -8S8 February 1936

UNITED STATES DEP/TMENT OP THE IHTERIOH 

Qeolo, sal Survey
TRIBUTARIES ABOVE GREEN RIVER 83

Roubideau Creek near Delta, Colo.

Location.- Water-stage recorder, lat. 38°42', long. 108°09', in sec. 7, T. 51 N., R. 11 

W., 600 feet upstream from Buttermilk Creek and 54 miles southwest of Delta.

Drainage area.- 165 square miles.

Records available.- March 1939 to September 1940.

Extremes.- Maximum discharge during year, 640 second-feet May 11 (gage height, 3.24 

feet); minimum daily, 0.3 second-foot Jan. 18, 19.

1939-40: Maximum discharge, that of May 11, 1940; minimum daily, that of Jan. 18, 

19, 1940.

Remarks.- Records good except those for period of ice effect, which are fair. A few 

small diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

a

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 

SO 

31

Oct.

11

10 

10 

4.6 

7.4

4.0 

6.1 

6.4 

8.6 

8.2

5.2 

2.5 

3.3 

6.4

3.8

3.3 

2»9 

2^9 

3.3 

2.7

2.7 

2.7 

3.1 

2.5 

3.1

3.1 

5.8 

4.9 

7.0 

7.8 

9.0

HOT.

8.6 

3.3 

4.0 

5.8 

5.2

5.2 

2.2 

6.4 

8.6 

2.7

2.0 

2.9 

3.1 

3.6 

3.6

1.7

1.6 

1.8 

1.6

1.7 

1.7 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

Deo.

1.6

1.2 

1.2 

1.2 

1.2

1.2 

1.4 

1.5 

1.6 

1.6

1.7 

2.5 

1.8 

1.5 

1.4

1.2

1.1

1.1 

1.1

.8 

.8 

.7 

.7 

.6

.8 

1.2 

1.4 

1.7 

1.7 

1.4

Jan.

0.9 

.9

1.4 

1.4 

1.1

.9 

.9

.8 

.8 

.8

.5 

.5

.4 

.4 

.4

*.4

.3

.3

.4

.5

.6 

*.6 

.6 

.7

.9

.8 

.8 

.7 

*.7 

.7

Feb.

0.8 

.8 

.9 

.9

1.0

1.1 

1.1 

1.1 

.7 

.7

.8 

.8 

.6 

.6 

.8

.8

1.0 

.9 1.-2

1.2 

1.1 

1.2 

1.2 

1.4

2.0 

1.8 

1.8 

1.6

Honth

Oot 

Hov 

Deo

C

Jan 

Pet 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

«

alendar year

11.....................................

ater year 1939-4

Mar.

1.6 

1.7 

1.7 

1.4 

1.5

1.6 

1.6 

2.5 

2.0 

3.8

6.7 

11 

11 

9.0 

6.4

5.8 

4.0 

5.8 

4.0 

1.5

1.4 

2.0 

3.3 

3.8 

2.5

2.9 

4.3

13 

10 

6.4 

5.5

Apr.

6.7 

10 

7.0 

5.8 

5.2

7.0 

7.4 

8.6 

5.8 

7.8

16 

17 

11 

20 

36

47 

40 

35 

36 

60

139 

196 

213 

270 

313

358 

361 

257 

204 

170

Secondfoot-days

164.3

91.7 

40.0

-

21.5 

30.6 

139.7 

2,870.3 

9,121 

740.8 

S09.1 

137.6 

371.7

13,938.3

May

146 

163 

213 

347 

415

404 

434 

401 

460 

488

508 

488 

464 

422 

354

351 

422 

368 

300 

245

233 

218 

196 

180 

163

153 

142 

133 

118 

102 

90

Maximum

118.6 

2.5

-

1.4 

2.0 

13 

361 

508 

80 

22 

5.8 

104

508

June

80 

70 

63 

58 

47

43 

38 

36 

36 

35

32 

23

19 

16 

16

17 

13 

10 

10 

10

8.6 

8.2 

7.8 

7.4 

6.1

6.1 

5.8 

5.2 

5.8 

7.8

July

5.5 

5.2 

5.2 

6.1 

5.8

5.5 

5.5 

5.5 

5.2 

4.9

5.5 

5.2 

4.9 

4.9 

5.2

8.6 

22 

9.0 

7.4 

7.8

7.0 

7.0 

7.4 

6.7 

6.1

6.1 

5.8 

7.0 

7.4 

7.0 

6.7

M4.pi.in1

2.5 

1.6 

.6

-

.3

.6 

1.4 

5.2 

90 

5.2 

4.9 

3.6 

3.3

.3

Aug.

5.5 

5.8 

5.2 

4.3 

4.6

4.3 

4.0 

4.3 

3.6 

3.6

4.0 

.3 

.9 

.9 

.9

.6 

.6 

5.8 

5.5 

4.0

3.8 

4.6 

4.6 

4.6 

4.0

4.3

3.8 

3.8 

3.8 

3.8 

3.8

Mean

5.30 

3.06 

1.29

-

.69 

1.06 

4.51 

95.7 

294 

24.7 

6.75 

4.44 

12.4

38.1

Sept.

4.9 

3.8 

3.3 

3.6 

4.0

4.3 

4.0 

3.6 

4.3 

4.3

4.9 

5.2 

4.0 

6.1

7.8

8.2 

10 

10 

8.2 

8.2

9.0 

11 

12 

18 

26

22 

18 

19 

20 

104

Run-off In 

acre-feet

326 

182 

79

-

43 

61 

277 

5,690 

18,090 

1,470 

415 

273 

737

27,640

*Wlnter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by Ice Jan. 11 to Feb. 5.

9-832 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeolog al Survey
84 TRIBUTARIES ABOVE GREEN RIVER

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.

Drainage area.- 245 square miles.

Records 'available.- March 1939 to September 1940.

Extremes.- Maximum discharge during year, 923 second-feet May 17 (gage height, 4.18 

reet), from rating curve extended above 650 second-feet; minimum daily, 17 secondfeet Mar. 20.

1939-40: Maximum discharge, that of May 17, 1940; minimum daily, that of Mar. 20,

Remarks.- Records good except those for period of Ice effect, which are fair. A few 

small diversions above station for Irrigation. Increase In discharge between station 

near Delta and mouth Is mostly return flow from Irrigated lands under lower end of 

Ironstone canal.

Discharge, In second-feet, water year October 1939 to September

Day

1

8

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

28

23

84

85

26

27

88

29

30

31

Oct.

114

117

122

74

112

76

105

105

102

85

87

96

96

93

89

82

78

82

91

110

102

93

82

72

80

96

91

93

110

110

117

Sov.

105

52

62

70

56

52

40

56

82

102

78

74

74

76

76

72

68

62

62

64

64

68

64

64

62

60

60

58

47

55

Dec.

53

55

58

58

58

60

60

60

60

48

45

44

44

44

42

40

40

40

37

38

40

40

38

38

40

32

31

32

31

31

30

Jan.

40

48

45

40

34

29

26

26

27

27

28

36

29

28

27

*27

24

23

23

26

26

24

*24

22

26

24

24

25

26

27

28

Feb.

30

30

31

32

32

31

31

31

28

28

28

27

26

31

40

37

36

34

35

31

29

30

31

27

26

29

27

26

26

_

-

Month

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

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

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

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

Water year 1939-40 ......................

Mar.

25

30

38

38

37

35

36

45

44

45

52

56

55

45

47

44

41

42

32

17

30

36

27

40

52

45

45

70

68

64

44

Apr.

74

91

68

50

38

53

68

58

38

50

85

62

41

42

68

89

76

53

53

96

184

271

292

357

421

491

546

402

310

265

-

Secondfoot-days

2 962

1 985

1J367

_

889

1,325

4,792

2 254

l)820

1,865

3,250

36,344

May

226

256

316

530

628

618

676

587

669

696

706

642

552

523

472

475

578

488

418

354

344

325

295

271

256

235

217

170

153

145

134

Maximum

122

105

60

.

48

40

70

546

. 706

132

87

110

370

706

June

132

127

124

110

98

89

91

105

122

129

117

98

80

62

72

70

53

48

40

47

45

44

44

47

41

37

38

40

42

62

-

July

53

44

44

64

62

48

50

55

47

45

52

55

45

48

47

52

82

56

52

58

70

70

64

68

62

60

48

68

87

82

82

m«1imnn

74

40

30

_

22

26

17

38

134

3V

44

35

47

17

Aug.

70

66

56

53

55

52

55

52

52

45

45

38

37

38

64

55

40

55

66

55

35

52

100

110

72

74

74

70

70

74

85

Mean

95.5

6f5.g

44.1

_

23.7

30.3

42.7

1610

418

75.1

53.7

60.2

103

93.3

Sept.

78

66

56

52

48

47

52

50

50

50

48

72

82

110

119

105

117

142

124

132

140

142

145

150

158

147

132

129

137

370

-

Run-off in 

acre- feet

5,880

3,940

2,710

_

1,760

1,750

2,630

9,500

25,700

4,470

3,610

3,700

6,450

72,100

*Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Jan. 11-23.

.9-232 February 1936

UNITED STATES DEPAF'"ME1!T OP THE INTERIOR 

Oeclog. U. Survey
TRIBUTARIES ABOVE GREEN RIVER 

Kahnah Creek near Whitewater, Colo.

85

Location.- Water-stage recorder and concrete control, lat. 38°59', long. 108°14' In 

sec - 34, T. 12 S., R. 97 W., a quarter of a mile downstream from Intake of pipe line 

for Grand Junction water supply and 17 miles east of Whitewater.

Drainage area.- 55.0 square miles.

Records available - October 1917 to September 1921 and October 1933 to September 1940 in 

reports or Geological Survey. October 1917 to September 1921 and August 1922 to 

September 1940 in reports of State engineer.

Average discharge (including flow diverted by pipe line above station).- 22 years, 40 8 second-feet. ~ 

Extremes (combined flow).- Maximum discharge during year, 700 second-feet May 13- minimum daily, 4.3 second-feet Dec. 19.

1917-21, 1922-40: 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, that of Dec. 19, 1939.

Remarks.- Records excellent except those for periods of ice effect, which are fair Figures of diverted flow for Grand Junction water supply (obtained from several readings 

made each day on Cippoletti weir) furnished by State engineer and added to monthly 

discharge to give total flow of stream. Records of combined flow excellent. Regulation by a few small reservoirs above station.

Rating table, water year 1939-4O, except periods of lee effect (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 25 to Nov. 15, Apr. S-14)

0.3 

.4

0.5

3.0

8.5

17

0.7 

.8 52

76

104

1.1 140

1.4 260

2.O 53O

Discharge, in second-feet, water year October 1939 to September 1940

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

26

26

27

28

29

30

31

Oct.

3.0

2.5

2.5

3.O

3.0

3.6

3.6

5.2

4.6

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

3.0

3.0

3.O

2.8

2.8

3.0

8.O

8.0

6.3

5.2

7.4

7.4

7.4

Nov.

7.4

7.4

7.4

6.3

5.2

5.2

5.2

5.2

6.3

5.2

5.2

4.6

5.2

5.2

4.6

b4.3

b4.O

b3.5

b2.8

>>3.2

b3.5

b3.4

b3.2

b3.O

b2.8

2.8

2.8

2.8

2.8

£.8

-

Dec.

3.0

b2.6

b2.6

b2.5

b2.2

b2.3

2.8

2,8

£.8

2.5

£.5

2.5

bl.8

b2.5

b2.4

b2.8

b2.5

.8

.8

1.8

1.2

2.2

2.8

2.2

1.5

.8

1.8

b2.O

b2.2

b2.4

b2.6

Month

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

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

Calendar year 1939

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

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

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

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

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

Water year 1939-4O

Jan.

b2.8

bS.O

bS.O

b3.2

b3.3

b3.2

b3.1

b2.9

b2.8

b2.7

bS.O

b2.8

b2.7

t2.3

bl.5

bl.9

b2.2

b2.4

b2.4

b2.5

b2.4

b2.4

b2.3

b2.4

b2.6

b2.8

bS.O

b2.5

3.0

3.0

2.8

Feb.

2

2

2

2

2

b2

2

b2

b2

2

2

2

b2

2

2

S

b2

b2

2

2

2

2

2

2

2

3

3

3

3

Ob

Secondfoot -days

135.2

133.3

68,2

8,431.4

82 9

78*3

153.2

8 $ 276

575.4

373 ,6 

156.8

11,876.2

Maximum

8.0

7.4

3.O

301

3.3

3*6 

12

98

5O3

66

3O

27 

17

5O3

8

8

8

8

5

3

8

6

6

8

8

8

5

8

8

8

4

2

5

5

8

5

5

5

5

O

O

0

6

Mar3

2

2

2

2

2

b2

2

2

2

2

2

1

bl

b2

2

3

3

4

5

5

7

8

11

12

12

11

8

7

6

8

served

Minimum

2.5

2 

0 O

.8

.8

1.5

2 2

s'.o

54

15

7.4

4.1 

1.2

.8

O

8

5

8

5

5

2

5

5

8

8

2

8

7

1

8

0

O

1

2

8

4

5

0

4

8

5

Apr.

9.4

6.8

5.8

5.8

5.8

5.2

4.6

8.5

9.4

4.6

3.0

3.6

5.8

14

20

15

12

15

25

37

48

48

59

74

79

98

93

66

57

54

-

May

54

57

76

111

140

188

212

244

305

341

395

458

485

5O3

494

494

413

359

377

350

305

296

314

3O5

260

196

16C

133

96

82

71

Mean

4.36

4.44

2.20

23.1

2 .67

2.7O

4 94 

29^7

267

31 «7

18 6

5^23

32.4

Run-off (acrefeet)

268

264

135

16,720

164

155

304

1,77O

16,420

1,890

1,140

741 

311

23,560

June

66

59

59

54

5O

45

41

37

34

30

26

25

24

22

21

20

17

16

15

15

22

21

21

20

24

25

25

37

41

39

July

3O

30

3O

26

20

20

18

20

27

27

26

22

21

18

15

21

27

22

17

15

12

13

10

11

11

10

10

15

14

10

7.4

Diversion*

! acre-feet)

387

3OJ

360

4,870

32C

282

325

452

718

546

578

532 

465

5,270

Aug.

6.3

6.3

4.6

4.1

5.2

13

17

16

27

26

18

14

16

14

16

18

17

14

8.5

7.4

7.4

8.0

11

13

14

12

12

7.4

6.8

6.8

6.8

Sept.

4.1

3.0

2.5

3.6

3.6

4.1

4.6

2.0

2.0

1.8

1.5

1.2

4.6

5.2

5.2

4.1

3.0

5.8

1O

10

8.5

6.3

5.8

5.2

4.6

3.6

4.1

6.8

13

17

Adjusted for

diversion

Run- off 

(acre-feet)

655

566

496

21,590

484

437

62E

2 22G

2,430

1,720

1,270 

776

28,810

riBeui

secondfeet)

10.7

s!o5

29.8

7.87

7.59

10.2

 trf « O f .O

279

4O«9

28 »O

20. 7 

13.0

39.7

*Dlversion by Grand Junction intake and Raber ditches. 

b Stage-discharge relation affected by ice.

9-234 April 1936

UNITED STATES DEPAr TENT OF T 

Geological Surve
86 TRIBUTARIES ABOVE GREEN RIVER 

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.

Drainage area.- 508 square miles.

Records available.- June 1895 to October 1903, August 1910 to December 1912 (at site 

Just downstream from Lost Canyon Creek), May 1922 to September 1927 (monthly discharge), and October 1933 to September 1940 in reports of Geological Survey. June 

1895 to October 1903, August 1910 to December 1912, and April 1922 to September 

1940 in reports of State engineer.

Average discharge.- 19 years (1921-40), 465 second-feet.

Extremes.- Maximum discharge during year, 2,130 second-feet May 14 (gage height, 5.27 

reetj; minimum daily, 16 second-feet Dec. 24.

1895-1903, 1910-12, 1922-40: 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 good except those for period of ice effect, which are fair. Dlversions above station for Irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

£6

27

28

89

30

31

Oct.

73

67

64

61

60

57

55 

60

73

69

61

61

60

57

56

55

53

51

51

48

48

47

46

45

47

68

69

55

55

57

57

HOT.

60

60

59

58

57

53

58 

53

57

57

48

50

53

50

44

40

40

40

38

38

47

49

46

43

39

44

46

40

42

38

Dec.

37

38

39

33

40

33

31 

30

32

28

26

26

20

#22

20

21

22

21

20

20

21

21

17

16

22

20

18

20

21

22

23

Jan.

24

24

24

25

25

23

17 

21

23

26

30

27

24

20

27

#28

29

28

21

27

30

22

25

28

31

31

32

32

33

33

34

Feb.

35

35

35

36

29

27

40 

37

#37

37

38

37

36

40

43

40

39

41

43

38

45

46

45

45

46

47

48

45

45

-

Month

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

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

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

Aug 

Sep

Water year 1939-40. ............... ......

Mar.

45

50

50

#54

50

44

49 

51

65

60

59

5B

54

61

60

65

74

76

82

94

111

131

156

184

212

234

243

224

184

169

189

Apr.

307

191

169

169

191

191

191 

195

209

229

232

269

345

492

635

573

426

465

729

1,060

1,310

1,290

1,360

1,250

1,160

1,190

1,260

946

810

713

-

Secondfoot-days

1 ,786 

1,452

785

91,999

QOA Otf*

1,155

3,238

18 i 457

46,332

20,765

5,459 

4,304 

4,551

109,108

May

792

1,000

1,120

1,310

1,440

1,340

1,580 

1,430

1,450

1,690

1,680

1,650

1,640

1,870

1,860

1,840

1,860

1,750

1,420

1,290

1,220

1,230

1,260

1,460

1,500

1,500

1,67C

1,710

1,540

1,560

1,670

MmHmiip

73

60

40

1,610

34

48

243

1,360

1,870

1 1 690

226 

191 

383

1,870

June

1,690

1,670

1,530

1,410

1,240

1,140

994 

912

840

729

687

677

682

687

661

562

512

483

438

410

379

375

345

308

278

25V

234

214

20£

219

July

226

200

180

167

160

151

136 

154

176

173

167

160

158

156

180

180

191

195

184

173

180

171

171

184

189

168

167

165

219

19S

182

Minimum

45

38

16

16

17

27

44

169

792

.202

136 

64 

49

16

Aug.

178

184

176

173

171

180

191 

180

169

154

154

138

122

116

118

125

134

136

145

158

158

109

82

100

123

160

136

107

90

7Z

64

Mean

5*7 6

48.4

2H"«3

251?

2f. 6

31^*8 10''

615

1,4913

69J3

171? 

139 

152

29P

Sept.

61

62

91

82

70

62

68 

66

57

55

49

52

57

59

60

59

68

237

383

333

269

315

298

263

237

204

195

184

254

301

"

Run-off in 

acre-feet

3,640 

2,880

1,560

182,500

1,630 

2 290

6*420

36,610

91 900 

4l)l90

10,830 

8,540 

9,030

216,400

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dec. 4 to Mar. 12.

9-232 February 1936

UNITED STATES DEPAK'^IEHT OP THE INTERIOR 

Geologi J. Survey
TRIBUTARIES ABOVE GREEN RIVER 87

Dolores River near McPhee, Colo.

Location.- Water-stage recorder, lat. 37°34', long. 108°34', In NEi 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.- 803 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 1,880 second-feet May 14 (gage height, 3.85 

feet;; minimum dally, 2.1 second-feet Aug. 5.

1938-40: Maximum discharge, 1-..900 second-feet Mar. 25, 1939; maximum gage height, 

3.85 feet May 14, 1940; minimum dally, 2.1 second-feet July 20, 22, 1939, Aug. 5, 

1940.

Remarks.- Records good except those for period of Ice effect and those below 10 secondfeet, which are fair. Diversions above station for Irrigation. Montezuma Irrigation District diverts water from Dolores River, just below station, for irrigation 

In McElmo Creek 8asln.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6

7 

8 

9 

10

11 

12 

13 

14

IS

16

17 

IB 

19 

20

21 

22 

23 

24 

25

26 

27 

2B 

29 

SO 

SI

Oct.

6.1 

5.5 

5.5 

21 

19

19 

6.8 

7.8 

6.8 

6.8

7,4 

6.4 

6.8 

6.6 

6.4

5.9 

5.7 

5.5 

5.3 

5.0

5.0 

4.8 

4.6 

4.8 

5.3

7.1 

13 

7.8 

6.4 

6.1 

5.9

HOT.

6.1 

6.6 

6.4 

6,6 

6.4

6.4 

6.6 

7.1 

8.1 

7.4

6.8 

6.4 

6.1 

6.1 

5.9

5.7 

5.3 

5.0 

5.5 

5.9

5.7 

5.5 

5.0 

5.5 

4.4

4.3 

4.6 

4.6 

4.6 

4.6

Dec.

4.4 

4.3 

4.8 

4.6 

4.0

4.8 

4.1 

4.1 

4.1 

4.6

4.6 

5.0 

4.3 

*4.3 

4

4 

4 

4 

4 

4

4 

4 

4 

4 

4

4 

4 

4 

25 

25 

25

Jan.

25 

25 

10 

10 

10

10 

10 

10 

10 

10

27 

27 

27 

27 

27

*27 

27 

27 

28 

28

29 

29 

29 

30 

30

30 

31 

5 

5 

5 

5

Feb.

5 

5 

5 

5 

5

5 

5 

5 

*5 

42

43 

44 

45 

45 

40

40 

40

41 

41 

41

42 

47 

47 

47 

48

50 

50 

50 

50

Month

Dot 

HOT 

Dec

C

Jan 

Pet 

Mar 

Apr 

Kay 

Jun 

Jul Aim

Sep 

II

alendar year 193 J ......................

 ter year 1939-4C

Mar.

50 

30 

30 

30 

*31

19 

18 

16 

17 

22

22 

16 

16 

15 

15

18 

26 

29 

23 

27

42 

68 

86

126 

174

237 

289 

296 

180 

193 

289

Apr.

224

86 

68 

132 

263

388 

416 

380 

359 

289

256 

317 

416 

606 

812

804 

662 

662 

1,010 

1,420

1,660 

1,550 

1,580 

1,500 

1,360

1,340 

1,410 

1,090 

1,110 

1,010

Seoondfoot-days

236.1 

175.2 

193.0

64,192.2

630 

938 

2,450 

23,180 

39,971 

8,669.7 

150.4 

154.6 

2,113.5

78,861.5

May

970 

1,180 

1,210 

1,370 

1,510

1,260 

1,520 

1,350 

1,280

1,500

1,530 

1,460 

1,410 

1.62C 

1,620

1,630 

1,640 

1,580 

1,260 

1,040

917 

917 

917 

1,120

1,150

1,100 

1,230 

1,280 

1,110 

1,100 

1,190

Mmrlimmi

21 

8.1 

25

1,280

31 

50 

296 

1,660 

1,640 

1,220 

10 

11 

439

1,660

June

1,220 

1,210 

1,OSO 

961 

786

678 

535 

445 

359 

237

180 

168 

168 

187 

168

94 

55 

32 

13 

8.4

5.9 

8.7 

10 

8.7 

8.7

9.0 

8.7 

7.8 

8.4 

9.4 

_

July

10 

7.1 

6.6 

5.9 

7.1

6.1 

5.5 

4.6 

4.0 

4.1

3.8 

4.6 

4.6 

4.1 

4.1

4.4 

4.4 

5.3 

5.3 

4.6

4.4 

4.0 

3.8 

4.0 

5.0

3.5 

4.3 

4.1 

4.0 

4.1 

3.0

l»T»limiffl

4.6 

4.3 

4.0

2.1

5 

5 

15 

68 

917 

5.9 

3.0 

2.1 

2.9

2.1

Aug.

3.0 

3.0 

2.8 

2.7 

2.1

2.6

5.7 

5.9 

5.9 

5.7

5.9 

4.4 

4.3 

4.0 

3.8

3.8 

3.3 

2.8 

2.9 

4.4

5.3 

5.3 

6.1 

9.4 

9.7

11 

7.8 

6.6 

5.7 

4.6 

4.1

He an

7.62 

5.84 

6.23

176

20.3 

32.3 

79.0 

773 

1,289 

289 

4.85 

4,99 

70.4

215

Sept.

3.8 

4.3 

5.7 

5.5

4.1

3.6 

3.5 

3.2 

3.2 

2.9

3.0 

3.0 

3.5 

3.2 

3.0

3.2 

3.8 

28 

289 

270

163 

224 

187 

137 

90

54 

42 

38 

90 

439

Run-off In 

acre-feet

468 

348 

363

127,300

1,250 

1,860 

4,860 

45,980 

79,280 

17,200 

298 

307 

4,190

156,400

 Winter discharge measurement made on this day.

Bote.- Stage-discharge relation affected by Ice Dec, 13 to Mar.

,9-232 February 1936

UNITED STATES DEPA"1HENT OF THE INTERIOR 

Oeclcf, al Surrey
88 TRIBUTARIES ABOVE GREEN RIVER

Dolores River at Gateway, Colo.

Location.- Water-stage recorder, lat. 38°41', long. 108°58' , in SWi sec. 15, T. 51 N., 

R. 19 W. , 0.3 mile southwest 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 1940.

Extremes.- Maximum discharge during year, 4,590 second-feet Apr. 22 (gage height, 6.75 

feet) ; minimum daily, 45 second-feet Aug. 18.

1937-40: Maximum discharge, 13,000 second-feet Apr. 25, 1938 (gage helerht, 11.65 

feet); minimum daily, that of Aug. 18, 1940.

Remarks . - Records fair. Diversions above station for irrigation. Montezuma Irrigation 

District diverts water from Dolores River Basin Just below station at Dolcres for 

irrigation.

Discharge, In second-feet, water year October 1939 to September 194O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

147 

145 

145 

143 

141

139 

118 

114 

114 

112

114 

114 

112 

112 

112

112 

112 

112 

112 

110

110 

110 

108 

108 

103

116 

299 

165 

130 

122 

124

Hov.

122 

124 

122 

120 

122

124 

124 

118 

118 

118

118 

107 

1^3 

103 

103

105 

112 

118 

116 

114

110 

112 

114 

114 

114

118 

118 

120 

118 

116

Dec.

114 

110 

110 

112 

110

112 

114 

112 

112 

114

116 

112 

110 

105 

98

103 

103 

108 

105 

90

90 

87 

98 

99

107

87 

90 

94 

90 

98 

103

Jan.

108 

112 

114 

114 

122

118 

al!6 

al!2 

allO 

alOB

a!06 

a!65 

152 

128 

93

88 

118 

116 

96 

126

107 

141 

143 

120 

145

157 

174 

174 

171 

160 

165

Feb.

196 

a220 

a260 

227 

alSO

a!45 

a!60 

a!60 

a!50 

143

a!40 

a!50 

141 

132 

141

157 

141 

139 

152 

168

154 

147 

168 

209 

256

388 

839 

460 

318

Month

Oot 

HOD 

Dec

C

Jan 

Feb 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

H

alendar year 193 

nary , . .

9. .....................

11.....................................

ater year 1939-4

Mar.

296 

274 

248 

241 

206

192 

192 

192 

196 

202

192 

189 

185 

176 

168

162 

154 

157 

160 

160

168 

185 

206 

213 

252

337 

488 

720 

812 

760 

680

Apr.

790 

1,020 

817 

614 

597

707 

945 

,110 

,040 

,120

,210 

,100 

,200 

,540 

,900

,210 

,010 

,700 

,000 

,660

3,570 

4,020 

3,790 

3,670 

3,830

3,600 

3,410 

3,220 

2,910 

2,840

Seoondfoot-days

3,935 

3,465 

3,213

182,619

3,979 

6,241 

8,763 

61,150 

86,590 

33,618 

5,893 

3,641 

8,583

229,071

May

3,200 

3,090 

2,730 

2,860 

3,320

3,200 

3,050 

3,060 

2,820 

2,730

2,990 

3,430 

2,960 

2,970 

3,120

3,060 

3,120 

3,220 

2,970 

2,710

2,540 

2,280 

2,080 

2,100 

2,060

2,050 

2,440 

2,730 

2,730 

2,500 

2,470

Maximum

299 

124

116

3,870

174 

839 

812 

4,020 

3,430 

2,880 

356 

390 

1,330

4,020

June

2,700 

2,880 

2,730 

2,200 

2,100

1,890 

1,630 

1,510 

1,230 

1,220

1,370 

1,230 

884 

880 

920

880 

795 

738 

724 

654

597 

551 

526 

468 

452

428 

384 

345 

322

380

July

356 

337 

292 

270 

263

256 

241 

230 

227 

216

157 

141 

136 

130 

126

171 

326 

192 

185 

165

152 

143 

139 

132 

128

120 

108 

112 

152 

147 

143

Minimum

103 

103 

87

52

88 

132 

154 

597 

2,050 

322 

108 

45 

64

45

Aug.

136 

128 

122 

112 

105

124 

145 

139 

124 

112

94 

84 

73 

68 

64

56 

51 

45 

54 

53

56 

58 

79 

185

139

341 

390 

154 

139 

108 

103

Mean

127 

116 

104

500

128 

215 

233 

2,0.38 

2,793 

1,121 

190 

117 

236

6?6

Sept.

78 

79 

185 

154

110

103 

74 

64 

69 

86

81 

79 

83 

84 

90

84 

84 

141 

345 

400

412 

667 

632

518 

509

432 

345 

315 

950 

1,330

Run-off in 

aore-feet

7,800 

6,870 

6,370

362,200

7,890 

12,380 

17,380 

121,300 

171,700 

66,680 

11,690 

7,220 

17,020

454,300

a Ho gage-height record; discharge computed on basis of records for Uncompahgre Rlv»r at Delta, 

Colo.

9-232 February 1936

UNITED STATES DEP^'OTIEHT OP THE IHTERIOR 

Oeolc sal Survey
GREEN RIVER BASIN 89

Green River at Warren Bridge, near Daniel, Wyo.

Location.- Water-stage recorder, lat. 43°00', long. 110°07', in sec. 8, T. 35 N., R. Ill 

 W., at Warren Bridge, 12 miles north of Daniel. Datum of gage is 7,468.09 feet above 

mean sea level (unadjusted).

Drainage area.- 468 square miles.

Records available.- October 1931 to September 1940.

Extremes.- Maximum discharge during year, 1,720 second-feet June 17 (gage height, 3.80 

feet); minimum daily, 62 second-feet Feb. 21, 22.

1931-40: Maximum discharge, 3,260 second-feet June 26, 1932 (ga?e height, 5.08 

feet), from rating curve extended above 2,500 second-feet; minimum not determined, 

occurred during winter.

Remarks.- Records excellent except those for period of ice effect, which are fair. 

Natural regulation by lakes in Green River Basin.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

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.

230

234

246

242

230

220

220

206

198

189

180

174

171

168

162

160

160

158

158

158

155

152

150

148

145

148

148

138

142

138

135

HOT.

138

138

132

130

130

120

128

132

132

125

120

120

120

120

120

115

120

120

125

125

125

125

120

120

115

115

115

115

115

120

-

Dec.

»123

125

130

135

135

140

1S5

130

125

130

135

130

125

115

120

125

120

115

110

105

100

94

90

86

84

80

78

76

74

76

78

Jan.

80

82

82

80

76

72

70

68

»70

76

72

70

66

66

66

68

70

70

68

66

66

66

68

68

70

74

78

80

82

82

80

Feb.

76

76

80

76

72

76

78

72

74

78

72

68

66

70

74

68

66

64

66

64

62

62

64

70

80

88

92

96

105

_

-

Month

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

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

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

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

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

Water year 1939-40.. ....................

Mar.

100

94

98

100

98

94

90

94

90

94

88

82

78

*75

78

84

90

88

94

100

105

100

120

130

150

160

170

175

170

165

190

Apr.

210

205

190

180

175

175

170

170

170

»167

160

155

150

160

170

190

205

222

268

313

285

246

240

243

250

254

264

254

243

226

-

Seoondf cot-days

5,463

3,695

3,424

163,252

2,252

2,155

3,444

6,310

26,633

36,386 

14.344

7,815

7,891

119,812

May

215

250

293

352

375

356

325

325

380

470

626

764

1,040

1,170

1,110

1,080

1,060

1,010

978

944

904

832

864

1,000

1,200

1,370

1,540

1,550

1,440

1,380

1,410

Mfty^ffipirq

246

138

140

1,840

82

105

190

313

1,550

1,680 

678

289

458

1,680

June

1,530

1,640

1,580

1,410

1,240

1,250

1,080

936

832

699

632

699

928

1,260

1,530

1,660

1,680

1,650

1,590

1,580

1,600

1,580

1,440

1,220

1,000

888

880

896

784

692

-

Jvly

678

657

657

650

626

608

596

578

536

502

486

475

448

426

415

426

448

486

486

448

400

370

352

352

356

361

352

330

301

274

264

Minimum

135

115

74

74

66

62

75

150

215

632 

264

222

212

62

Aug.

277

285

282

271

264

260

254

250

216

229

226

232

236

246

246

243

229

222

222

226

236

246

260

271

268

274

289

285

268

246

226

Mean

176

123

110

447

72.6

74.3

111

210

859

1,213 

463

252

263

327

Sept.

218

212

218

240

250

282

301

285

274

268

274

282

285

282

274

274

264

250

246

250

250

243

236

236

229

229

218

246

317

458

-

Run-off in 

acre-feet

10,840

7,330

6,790

323,800

4,470

4,270

6,830

12,520

52,830

72,170 

28,460

15,500

15,650

237,600

ftWinter discharge measurement made on this da?.

Note.- Stage-discharge relation affected by Ice Nov. 10 to Apr. 17.

9-232 February 1936

UNITED STATES DEPABI"MEHT OP THE INTERIOR 

Oeolcgi J. Surrey
90 GREEN RIVER BASIN

Green River near Linwood, Utah

Location.- Water-stage recorder, lat. 40°58', long. 109°35', in SW, sec. 29, T. 3 N., R. 

21 E., a quarter of a mile upstream from Henrys Fork, 2 miles south of Wyoming-Utah 

State line, and 5 miles southeast of Linwood. Datum of gage is 5,844.64 feet above 

mean sea level (unadjusted).

Drainage area.- 14,300 square miles.

Records available.- October 1928 to September 1940.

Average discharge.- 12 years, 1,597 second-feet.

Extremes.- Maximum discharge during year, 4,340 second-feet May 31; maximum gage height, 

6.20 feet Mar. 12 (ice Jam); minimum daily discharge, 270 second-feet Jan. 22.

1928-40: Maximum discharge, 15,200 second-feet June 4, 1936 (gage height, 10.11 

feet, from recorded range of stage and floodmarks), from rating curve extended above 

11,000 second-feet; minimum, 196 second-feet Nov. 27, 1934 (gage height, -0.10 foot).

Remarks.- Records good except those for period of ice effect, which are fair. Diversions 

aoove station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

8122

23

24

25

26

27

28

29

SO

31

Oct.

565

551

544

565

565

565

565

572

579

572

565

551

544

537

537

518

512

512

512

512

512

512

512

512

506

518

512

500

500

488

488

HOT.

488

488

488

488

488

494

494

494

494

488

494

494

488

464

459

464

470

464

380

338

320

352

347

390

410

395

420

442

375

334

-

Dec.

400

470

454

488

459

470

432

442

476

551

565

586

520

500

520

540

530

500

460

470

460

410

420

430

390

320

330

320

340

390

450

Jan.

480

480

450

400

400

400

350

320

350

400

390

380

*355

370

360

360

380

320

300

320

330

270

300

340

360

350

370

400

380

370

360

Feb.

38O

410

420

420

430

410

400

400

420

430

410

*379

370

380

400

390

360

340

350

360

340

360

380

400

430

480

600

700

780

_

-

Month

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

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

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

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

Water year 1939-4 0. .....................

Mar.

S60

900

900

880

860

850

890

900

910

920

820

780

760

780

820

842

941

905

896

977

959

1,050

1,190

1,220

1,220

1,140

1,150

1,190

1,180

1,090

1,010

Apr.

986

977

968

959

950

941

923

S69

770

716

6S9

656

648

672

656

632

632

689

752

770

743

734

707

734

716

648

632

648

608

593

-

Secondfoot-days

16,503

13,204

14,083

517,852

11,395

12 329

29 790

22 ,618

45,182

66,670

17,636

10,757

9,654

269,821

May

579

586

565

537

500

470

442

437

442

4S8

4S2

476

454

579

995

1,380

1,810

2,010

2,140

2,220

2,180

1,990

2,010

1,940

1,740

1,590

1,660

2,680

3,390

4,120

4,290

Maximum

579

494

586

5,180

480

780

1,220

986

4,290

4,170

996

707

4,290

June

4,170

3,750

3,390

3,260

3,360

3,410

3,220

3,170

3,140

2,760

2,340

2,060

1,870

1,640

l,43tl

1,270

1,250

1,410

1,660

1,900

2,010

1,970

1,820

1,760

1,740

1,670

1,560

1,380

1,210

1,090

-

July

995

923

923

914

923

842

7S8

743

6S9

632

579

558

530

500

482

454

432

420

405

410

442

448

442

432

410

400

395

385

380

380

380

M^TI-SmiTOI

488

320

320

320

270

340

760

593

437

1,090

380

312

288

270

Aug.

380

380

380

385

375

365

360

365

370

370

370

370

365

360

356

347

338

334

334

329

320

320

312

312

316

320

316

316

324

334

334

Mean

£32

440

454

1,419

568

485

661

754

1,467

2, £22

669

347

322

737

Sept.

334

329

329

316

312

304

296

296

296

304

304

320

352

329

312

300

292

288

288

296

288

288

288

288

288

292

292

316

410

707

-

Run-off in 

acre-feet

32,730

26,190

27,930

1,027,000

22,600

24,450

59,090

44,860

89*620

34*980

21,340

19,150

635,100

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dec. 13 to Mar. 15.

9-232 February 1936

TJHITED STATES DEPAP|"MENT OF THE INTERIOR 

Oeolog. tl Surrey
GREEN RIVER BASIN 91

Green River at Green River, Utah

Location.- Water-stage recorder, lat. 39°00', long. 110°09', in NWiSWi sec. 15, T. 21 S.

 R. 16 E., 1 mile southeast of town of Green River and 22 miles upstreem from San 

Rafael River.

Drainage area.- 40,600 square miles.

Records available.- October 1894 to October 1899, February 1905 to Decemt'sr 1911, June

 1924 to September 1940. December 1910 to June 1924, at site 7 miles downstream, published as Green River at Little Valley, near Green River, Utah.

Average discharge.- 40 years (1894-99, 1905-40), 7,035 second-feet.

Extremes.- Maximum discharge during year, 16,200 second-feet May 17 (gage height, 9.37 

feet); minimum, 408 second-feet Jan. 19 (gage height, 4.65 feet).

1894-99, 1905-40: Maximum discharge (revised), 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 (gage height, 4.17 feet); minimum gage height, 4.08 feet Aug. 1, Dec. 5, 

1934.

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

Discharge, in second-feet, water year October 1939 to September 19*0

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

86

27

28

29

30

51

Oct.

1.S50

1,850

1.850

1,960

1,800

1,890

2,240

2,340

2,780

2,340

2,670

2,670

2,340

2,180

2,140

2,110

2,090

2,090

2,030

1,980

1,920

1,910

1,870

,840

,820

,800

,780

,750

,910

1,940

1,870

HOT.

1,840

1,820

1,780

1,770

1,770

1,770

1 ,750

1,730

1,750

1,730

1,730

1,730

1,720

1,720

1,700

1,680

1,680

1,680

1,650

1,600

1,550

1,510

1,480

1,480

1,480

1,470

1,450

1,450

1,500

1,530

Dec.

1,560

1,620

1,630

1,620

1,580

1,550

1,550

1,630

1,670

1,680

1,700

1,700

1,700

1,700

1,680

1,770

1,750

1,670

1,560

1,500

1,400

1,260

1,190

1,160

1,080

938

1,050

1,110

976

902

819

Jan.

786

786

976

1,320

1,720

1,870

1,960

1,850

1,910

1,890

1,780

1,750

1,840

1,850

1,,700

1,430

1,220

976

539

690

866

,110

,150

,020

963

,000

,000

1,070

1,250

1,430

1,450

Feb.

1,400

1,620

1,630

1,680

1,670

1,670

1.730

1,720

1,750

1,730

1,720

1,700

1,650

1,650

1,720

1,720

1,620

1,560

1,650

1,650

1,630

1,680

1,680

1,620

1,630

1,730

1,770

1,820

1,890

_

-

Month

Doc ember

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

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

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

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

Water year 1939-4 0. .....................

Mar.

2,030

2,670

3,810

4,710

4,240

4,240

4,550

4,400

3,950

3,400

3,270

3,140

3,140

3,140

2,900

2,780

2,670

2,670

2,560

2,670

2,670

2,670

2,780

2,900

2,900

2,780

2,900

3,020

3,270

3,540

3,810

Apr.

3,950

3,950

3,810

3,540

3,400

3,540

3,810

3,950

3,670

3,400

3,400

3,540

3,540

3,270

3,140

3,140

3,020

2,900

2,900

3,400

4,240

4,400

4,400

4,550

5,370

6,080

6,270

6,460

7,850

8,920

-

Seoondf oot-days

63,610

49,500

44,705

1,600,344

41,152

46,690

100,180

127,810

354,520

248,150

53,826

24,943

40,844

1,197,930

May

8,920

S,700

8,060

7,240

6,270

5,720

6,270

9,140

10,800

10,600

10,400

10,800

12,400

13,600

14,100

15,100

15,700

15,100

14,600

15,100

15,700

14,100

13,600

13,100

12,400

11,600

10,800

10,600

10,800

11,100

12,100

Mn yi nyiiTfl

2,780

1,840

1,770

17,400

1,960

1,890

4,710

8,920

15,700

13,600

3,540

1,550

2,660

15,700

June

12,800

13,400

13,100

13,600

13,600

13,400

12,800

12,100

11,600

10,600

9,600

9,140

8,480

7,440

6,650

6,460

6,270

6,080

5,900

5,540

5,370

5,370

5,040

5,040

5,040

5,200

5,040

4,550

4,840

4,100

-

July

3,540

3,400

3,080

2,780

2,560

2,4.1.0

2,280

2,180

2,180

2,140

2,030

1,910

If 8!?0

1,700

1,560

1,530

1,430

1,330

1,390

1,450

1,300

1,190

1,110

1,0.10

1,000

9f*0

9?S 9~0

9136

902

800

Minimum

1,750

1,450

819

819

539

1,400

2,030

2,900

5,720

4,100

890

611

775

539

Aug.

^ 878

830

808

808

742

720

819

775

710

700

690

680

680

640

630

620

611

620

620

660

710

650

630

660

742

950

1,050

1,360

1,550

1,310

1,090

»»an

2,052

1,650

1,442

4,385

1,327

1,679

3,232

4,260

11,440

8,272

1,736

805

1,361

3,273

Sept.

926

902

830

1,280

1,050

890

854

866

819

797

786

775

819

1,080

1,250

1,260

1,120

2,660

1,960

2,010

1,870

1,650

1,850

1,960

1,700

1,620

1,560

1,470

1,910

2,320

-

Run-off in 

acre-feet

126,200

98,180

88,670

3,174,000

81,620

96,580

198,700

253,500

703,200

492,200

106,800

49,470

81,010

2,376,000

400453 O - 41 - 7
92 GREEN RIVER BASIN

Beaver Creek near Daniel, Wyo.

Location.- Water-stage recorder, lat. 43°00', long. 110°09', In sec. 18, T. 35 N., R. Ill 

W., at Hanson ranch, half a mile downstream from forks, 1 mile upstream from mouth, 2 

miles southwest of Warren Bridge, and 11 miles northwest of Daniel.

Drainage area.- 141 square miles.

Records available.- November 1938 to September 1940.

Extremes.- Maximum discharge during year, 135 second-feet Apr. 17 (gage height, 4.85 

 feet); no flow July 8-15, 21-24, Aug. 2-25, Sept. 5-11.

1938-40: Maximum discharge, 179 second-feet Apr. 8 (gage height, 5.32 feet); no 

flow July 8-15, 21-24, Aug. 2-25, Sept. 5-11, 1940.

Remarks.- Records good except those for periods of ice effect and those below 5 secondfeet, which are fair. Diversions above station for Irrigation.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Rating table, water year 1939-40, except periods of ice effect (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Aug. 25 to Sept. 30)

Oct. 1 to Nov. 30 Dec. 1 to Sept. 3O

3.0 0.1

3.1

3.2

3.3

3.5

2.0

5

13

2.9

3.0

3.1

3.2

3.3

3.4

3.5

3.6

6.8

11

3.8 

4.0 

4.6

52

110

Discharge, in second-feet, water year October 1939 to September 1940

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.

1.6 

.5 

.4 

1.2 

1.6

.4 

.5 

2.0 

2.9 

.6

.8 

1.7 

1.7 

.8 

.5

1.4 

1.7 

1.4 

1.4 

1.7

2.3 

1.4

4.7 

4.4 

1.4

.8 

2.9 

3.8 

4.7 

4.4 

4.7

Hov.

3.S 

3.8 

3.5 

3.5 

2.9

2.6 

5.4 

6.2 

5.8 

5.0

8.6 

8.6 

8.6 

8.6 

8.6

9.0 

8.6 

8.6 

9.4 

10

9.4 

9.4 

9.4 

9.0 

9.8

10 

10 

9.8 

8.6 

8

Dec.

*8.1 

8 

8 

8 

8.5

8.5 

8.5 

8.5 

8.5 

8

8 

7.5 

8 

8 

8.5

9 

9 

8

7.5 

8

8 

8 

7.5 

7 

7

7 

6 

5 

5.5 

6 

6.5

Jan.

7 

7 

7 

7 

7

7 

6.5 

6 

«6.4 

6.5

7 

6.5 

6 

6 

6

6 

6.5 

6

5.5 

6

6 

6 

6 

6 

6.5

7 

7 

7 

7.5 

7.5 

7

Feb.

7.5 

8 

8 

8.5 

8

8 

8.5 

8.5 

8 

9

8.5 

8 

8 

8.5 

9.5

9 

9 

9.5 

10 

9.5

10 

12 

13 

15 

16

17 

19 

20 

23

Month

Oct 

NOD 

Dec

C

Jan

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

11.....................................

ater year 1939-40. .....................

Mar.

22 

22 

23 

25 

26

27 

29 

28 

33 

32

32 

34 

36 

39 

41

38 

41 

40 

42

45

45 

50 

54 

52 

56

60 

50 

56 

58 

56 

60

Apr.

64 

62 

60 

56 

52

54 

50 

50 

52 

44

45 

38 

76 

87 

95

81 

92 

95 

98 

109

99 

72 

69

71 

71

73 

71 

55 

57 

42

Secondfoot-days

60.3 

224.5 

237.6

5,793.8

202.4 

316.5 

1,260 

2,040 

342.7 

7.8 

2.6 

2.4 

5.7

4,702.5

May

35 

32 

37 

43 

36

30 

21 

16 

12 

9.7

8.9 

9.7 

23 

18 

7.2

.4 

.3 

.4 

.3 

.4

.3 

.2 

.2 

.2 

.2

.3 

.2 

.2 

.2 

.2 

.2

Maximum

4.7 

10 

9

141

7.5 

23 

60 

109 

43 

2.7 

.2 

.5 

.6

109

June

0.2 

.2 

.2 

.2 

.3

2.7 

.6 

.3 

.2 

.2

.2 

.2 

.2 

.3 

.2

.1 

.1 

.1 

.1 

.1

.1 

.2 

.1 

.1

.1

.1 

.1 

.1 

.1

.1

July

0.2 

.2 

.2 

.2 

.1

.1 

.1 

0 

0 

0

0

0 

0

o

0

i i i i i

0 

0 

0 

0

.1

.1 

.1 .1

.2 

.2 

.2

Minimum

0.4 

2.6 

5

.1

5.5 

7.5 

22 

38 

.2 

.1 

0 

0 

0

0

Aug.

0.1 

O 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.4 

.5 

.4 

.4 

.4 

.2

Mean

1.95 

7.48 

7.66

15.9

6.53 

10.9 

40.6 

68.0 

11.1 

.26 

.08 

.08 

.19

12.8

Sept.

0.2 

.2 

.2 

.3 

0

0 

0 

0 

0 

0

0

.1 .1

.5 

.5

.4 

.4 

.2

,1 

.1

.2 

.2 

.2 

.1 

.1

.1 

.1 

.2 

.6 

.6

Run-off in 

acre-feet

120 

445 

471

11,500

401 

628 

2,500 

4,050 

680 

15 

5.2 

4.8 

11

9,330

#Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 27, Nov. 30 to Apr. 9.

9-232 February 1936

TOUTED 8TATES DEPARTMENT OP THE INTERIOR 

Oeolot Wl Survey
GREEN RIVER BASIN 93

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 

(general adjustment of 1929).

Drainage area.- 124 square miles.

Records available.- October 1931 to September 1940.

Extremes.- Maximum discharge during year, 298 second-feet May 29 (gage height, 1.68 feet); 

minimum daily, 1 second-foot July 22, 23.

1931-40: Maximum discharge, 1,670 second-feet May 31, 1936 (gage height, 3.53 

feet), from rating curve extended above 730 second-feet; minimum dally, that of July 

22, 23, 1940.

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

which are fair. Diversions above station for Irrigation.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

81 

22 

23 

24 

25

26 

27 

28 

29

30

31

Oct.

13 

13 

15 

14 

13

13

13 

14 

14 

14

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12

12 

12 

12 

12

12 

12 

12 

12 

12 

12

HOT.

13 

13 

13 

13 

13

14 

12 

13 

13 

14

15 

15 

15 

15 

15

16 

17 

14 

14 

13

14 

13 

13 

14 

14

14 

13 

13 

12 

13

Dec.

13

12 

13 

13

12 

11 

12 

11 

12

13 

12 

11 

10 

10

11 

11 

10 

9.5 

9.5

9 

8.5 

9 

9 

8.5

8 

8 

8.5 

9 

9.5 

10

Jan.

11 

12 

11 

11 

10

9.5 

9 

»9.4 

10 

11

11 

10 

9.5 

9 

9

9 

10 

10 

9 

8

8.5 

9 

9 

8.5 

9

9.5 

9.5

11 

12 

11 

10

Feb.

9.5 

10 

10 

11 

10

9.5 

10 

9.5 

9 

8.5

8 

7.5 

7 

7.5 

8

7.5 

7 

7.5 

7 

7

7 

7.5 

8.5 

9.5

10

11 

11 

12 

13

Month

Dot 

Not 

Dec

C

Jan 

Fell 

Mar 

Apr

Jun 

Jul 

Aug 

Sep

«

alendar year

ater year 1939-4

Mar.

13 

12 

13 

13 

14

13 

13 

14 

13 

15

14 

14 

14 

15 

17

18 

19 

17 

18 

19

20 

21 

22 

24 

26

28 

29 

30 

27 

25 

26

Apr.

27 

31 

27 

24 

27

29 

26 

28

31 

29

29 

26 

30

41 

51

50 

52 

63 

64

51

41 

34 

29 

27 

24

21 

18 

18 

16 

15

Seeondfoot-days

388 

413 

325.0

-

305.4 

260.5 

576 

979 

2,667 

1,519.8 

165.5 

251.1 

287.8

8,138.1

May

13 

10 

1O 

11 * 12

14 

15 

14 

14 

15

29 

42 

79 

108 

90

90 

99 

95 

84 

83

84 

70 

75 

126

151

213 

222

213 

255 

183 

148

Mqyj mug

15 

17 

13

-

12 

13 

30 

64 

255 

154 

9.0 

10 

15

255

June

133 

123 

113 

95 

123

154 

103 

86 

81 

67

54 

50 

45 

40 

40

34 

30 

21 

18 

18

13 

12 

10 

9.8 

8

8 

8 

7.5 

7.5 

8

July

f.6 

f.O 

f.6

7.5

e.s 

e.5 

e

e

 .5

f 

6.5

e

4.5

5.5 

4 

3 

2.5

2

1.5 

1 

1 

1.5 

2.5

7.5 

6.8 

8.3 

7.2 

7.2 

6.8

Minimum

12 

12 

8

-

8 

7 

12 

15 

10 

7.5 

1 

6.5 

7.9

1

Aug.

6.5 

6.8 

6.5 

6.5 

6.5

6.5 

7.2 

9.0 

8.6 

S.6

7.5 

7.5 

7.5 

7.9 

7.5

7.9 

7.9 

7.9 

7.9 

8.3

9.4 

9.0 

9.0 

9.4 

10

10 

10 

9.0 

8.6 

8.3 

7.9

Mean

12.5 

13.8 

10.5

-

9.85 

8.98 

18.6 

32.6 

86.0 

50.7 

5.34 

8.10 

9.59

22.2

Sept.

8.3 

8.3 

7.9 

8.6 

8.6

8.3 

8.3 

8.3 

9.0 

9.4

9.0 

8.6 

9.4 

10 

9.4

8.6 

8.6 

9.4 

9.8 

9.8

9.8 

9.4 

9.0 

9.0 

9.4

9.8 

9.8 

15 

15 

14

Run-off in 

aore-feet

770 

819 

645

-

606 

517 

1,140 

1,940 

5,290 

3,010 

328 

498 

571

16,130

eWinter discharge measurement made on this day.

Note.- Discharge for periods of no gage-height record, June 25-30, July 4-25, Aug. 1, 3-6, e 

puted on the basis of one discharge measurement and records for North Piney Creek near Mason. 

Stage-discharge relation affected by ice Nov. 10 to Mar. 31.

9-232 February 1936

UNITED STATES DEPAP"TffiHT OP THE INTERIOR 

Oeolog il Surrey
94 GREEN RIVER BASIN

Cottonwood Creek near Daniel, Wyo.

Location.- Water-stage recorder, lat. 42°47', long. 110°09', in sec. 11, T. 32 N., R. 112 

W., It miles downstream from forks and 7 miles southwest of Daniel.

Drainage area.- 204 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 141 second-feet May 30 (gage height, 5.66 feet); 

no flow Aug. 19-22.

1938-40: Maximum discharge, 248 second-feet May 31, 1939 (gage height, 5.96 feet); 

no flow Aug. 19-22, 1940.

Remarks.- Records good except those for period of tee effect, which are fair. Diversions 

above station for irrigation.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

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.

8.2 

11 

12 

12 

10

9.4 

10 

11 

10 

10

9.4 

9.4 

9.4

10 

10

10 

10

11 

1111

11 11 

11 

11

10

11 

11 

11

12 

12 

12

Hov.

13 

12 

11 

11 

11

12 

13 

15 

16 

17

16 

15 

16 

16 

16

17 

18 

17 

16 

15

15 

15 

15 

14 

14

13 

12 

15 

*17

18

Dec.

18 

17 

16 

16 

16

17 

17 

18 

IS 

18

16 

13 

14 

14 

14

15 

14 

12 

11 

12

12 

12 

10 

9 

9

9 

7 

6.5 

7 

7.5 

8

Jan.

9 

9 

9 

9 

9

9 

8 

7.5 

7.5 

*8.0

8.5 

8 

7 

7 

7

7.5 

8 

7 

6.5 

6.5

6.5 

6.5 

6.5 

7 

7

7.5 

8 

8.5 

8.5 

8.5 

8

Feb.

8.5 

9 

9.5 

10 

9

9.5 

10 

9.5 

10 

10

9.5 

9 

8.5 

9.5 

11

10 

10 

10 

10 

10

9.5 

10 

12 

13 

14

16 

17 

18 

22

Month

Oot 

No?

Dec

C

Jan 

Fefc 

Mar 

Apr 

toy 

Jun 

Jul 

Aug 

Sep

H

uary

11. ....................................

ater year 1939-40......................

Mar.

21 

20 

£1 

22 

21

24 

26 

24 

28 

30

28 

28 

30 

32 

34

32 

34 

32 

34 

36

38 

44 

44 

44 

46

48 

48 

*46 

44 

46 

45

Apr.

48 

#51 

50 

46 

42

45 

39 

46 

45 

38

36 

32 

38 

41 

46

53 

56 

64 

65 

44

37 

30 

27 

31 

33

32 

28 

27 

23 

20

Secondfoot-days

327.8 

441 

403.0

14,576.2

240.5 

324.0 

1,050 

1,213 

1,315 

1,008 

311.6 

38.7 

132.8

6,805.4

May

20 

20 

23 

25 

22

20 

20 

18 

18 

19

20 

22 

34 

45 

46

39 

39 

39 

41 

40

46 

44 

37 

35 

41

64 

100 

75 

119 

102 

82

MOY***"* 

12 

18 

18

228

9 

22 

48 

65 

119 

102 

31 

4.9 

13

119

June

54 

53 

60 

51 

65

102 

62 

46 

41 

35

29 

24 

23 

24 

23

22 

20 

19 

18 

22

20 

20 

18 

20 

20

25 

20 

23 

26 

23

July

24 

£8 

31 

26 

25

20 

17 

14 

13 

12

12 

9.1 

7.7 

6.5 

5.3

4.9 

6.5 

9.7 

8.5 

7.3

5.7 

3.9 

3.1 

2.3 

1.2

1.0 

.5

1.4 

1.6 

1.7 

1.7

Minimum

8.2 

11 

6.5

6.0

6.5 

8.5 

20 

20 

18 

18 

.5 

0 

1.0

0

Aug.

2.3 

2.0 

1.6 

.8 

.4

.2 

.2 

.4 

.8 

1.2

1.0 

.5 

.5 

.5 

.4

.2 

.1 

.1 

0 

0

0 

0 

1.4 

2.0

3.1

4.9 

4.9 

3.9 

2.5 

1.6 

1.2

Mean

10.6 

14.7 

13.0

39.9

7.76 

11.2 

33.9 

40.4 

48.4 

33.6 

10.1 

1.25 

4.43

18.6

Sept.

1.2 

1.1 

1.0 

1.6 

2.0

2.3 

2.3 

2.3 

2.3 

3.9

4.9 

4.2 

4.2 

4.9 

4.5

3.9 

3.9 

3.9 

4.5 

4.5

5.3 

4.9 

4.S 

4.2 

4.2

5.3 

5.3 

9.7 

13 

13

Run-off in 

acre-feet

650 

875 

799

28,900

477 

643 

2,080 

2,410 

2,610 

2,000 

618 

77 

263

13,500

 aWlater discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 7 to Apr. 4.

9-232 February 1936

UNITED STATES DEP^WMENT OP THE INTERIOR 

Qeolc cal Survey
GREEN RIVER BASIN 95

Cottonwood Creek near mouth, near Big Plney, Wyo.

Location.- Water-stage recorder, lat. 42°40', long. 110°00', In sec. 13, T. 31 N., R. 

Ill W., 2 miles upstream from incuth and 10 miles northeast of Big P'ney.

Drainage area.- 227 square miles (revised).

Records available.- November 1938 to September 1940 (discontinued).

Extremes.- Maximum discharge during year, 60 second-feet May 30 (gage height, 7.09 feet); 

no flow Aug. 3 to Sept. 30.

1938-40: Maximum discharge, 209 second-feet Mar. 31, 1939; no flow Aug. 31 to Sept. 

15, 1939, Aug. 3 to Sept. 30, 1940.

Remarks.- Records fair. Diversions above station for Irrigation. 

Cooperation.- Records collected In cooperation with Bureau of Reclamation.

Discharge, In second-feet, water Tear October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

81

88

83

84

85

86

87

88

89

30

31

Oct.

4.3

5.4

8.5

9.7

11

11

11

10

10

10

10

10

11

11

11

11

11

11

11

12

12

12

12

12

12

12

12

12

13

13

13

SOT.

13

13

14

13

13

12

12

13

14

10

9.7

9.1

8.5

7.5

9.4

9.7

9.7

9.4

8.8

8.8

7.8

S.5

S.I

8.5

8

8

8

8

*8.7

9

-

Dec.

 6.5

Jan.

(*)

 4.2

Feb.

 8.0

;

-

Month

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

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

toy.. .....................................

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

Water year 1939-4(3. .....................

Mar.

. 25

(*)

'

Apr.

48

*50

42

36

28

32

26

24

21

14

13

12

8.5

4.8

6.3

13

19

16

16

18

15

13

12

12

10

9.1

7.8

7.5

6.9

5.7

Secondf cot-days

334.9

300.2

201.5

_

130.2

232.0

775

546.6

276.5

357.8

41.2

.2

0

3,196.1

May

5.1

5.4

5.1

4.8

4.0

3.6

3.8

3.6

2.4

2.4

2.2

2.2

2.4

2.1

2.2

3.6

4.3

3.4

3.1

4.8

7.5

S.I

8.5

7.2

6.3

5.4

8.8

24

32

54

44

Maximum

13

14

_

_

_

50

54

47

6.6

.1

0

-

June

26

18

23

25

30

40

47

37

29

21

14

9.1

6.3

4.3

2.7

1.6

1.1

.8

.9

.8

.6

.5

.4

.3

.3

.6

5.1

4.8

4.0

3.6

Jrl.j

3.8

6.6

6.6

4.0

4.3

4.0

3.4

2.7

1.5

.8

.6

.4

.2

.2

.1

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Minimum

4.3

7.5

.

_

_

4.8

2.1

.3

.1

0

0

0

Aug.

0.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

10 * 3

10.0

6.5

.

4.2

e.o

25

18.2

8.92

11.9

1.33

.01

0

8.73

Sept.

Run-off in 

acre-feet

664

595

400

.

258

460

1,540

1,080

548

710

82

.4

0

6,340

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Nov. 25 to Apr. 4.

9-238 February 1986

UNITED STATES DEPAPTtEHT OP THE IHTERIOR 

Oeolog il Surrey
96 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 1940. May 1916 to September 1917 and TJay 

1921 to November 1923, at site 2 miles downstream (published as East Fork at East Fork 

Canal).

Extremes.- Maximum discharge during year, 680 second-feet May 12 (gage height, 5.38 feet), 

from rating curve extended above 370 second-feet; minimum discharge observed, 1.2 

second-feet Jan. 4 (discharge measurement), but probably less during perloc1 of ice 

effect.

1916-17, 1921-23, 1936-40: Maximum discharge, 1.400 second-feet June 2T.. 1917 

(gage height, 4.6 feet, site and datum then in use), from rating curve extended above 

850 second-feet); minimum discharge observed, that of Jan. 4, 1940, but probably less 

during period of ice effect.

Remarks.- Records excellent except those below 20 second-feet, which are good, and those 

for "period of Ice effect, which are fair. No diversions above station.

Cooperation.- Records collected in cooperation with Bureau of Reclamation. 

Discharge, In second-fact, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

SI 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

9.2 

12 

16

17 

17

16 

14 

14 

13 

12

12 

11 

11 

10 

9.5

9.2 

8.8 

8.8 

8.1 

7.4

7.4 

7.4 

7.0 

6.4 

6.4

6.4 

6.4 

5.8 

7.0 

5.8 

6.7

HOT.

7.0 

7.0 

6.7 

6.7 

5.2

5.0 

5.0 

5.0 

5.2 

4.2

4.0 

4.2 

4.2 

3.6

3.0 

3.0 

2.8 

2.6 

2.6

2.6 

2.6 

2.4 

2.4 

2.2

2.0 

1.8 

1.8 

1.6 

1.6

Dec.

(*)

;

Jan.

(«)

Feb.

Month

Dot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

W

alendar year 1939. ..............

uary

ater year 19 39 -40

Mar. Apr.

4.4 

4.2 

4.2 

4.2 

4.6

4.6 

4.8 

5.2 

*5.2 

5.0

4.6 

4.6 

7.0 

8.8

11

10 

11 

13 

16 

19

19 

19 

18 

20 

23

27 

30 

29 

30 

28

Seoondf cot-days

308.7 

111.2 

37.2

23,008.6

34.1 

37.7 

71.3 

394.4 

9,946 

4,219 

899.2 

93.4 

321.1

16,473.3

May

y

4S 

106 

152

17E

15S 

15E 

212 

291 

422

561 

608 

549 

450 

459

472 

37 £ 

347 

336 

330

231 

228 

277 

332 

33C

336 

400 

454 

43C 

344 

330

MqyjjtypH

17 

7.0

616

30 

608 

305 

100 

7.7 

49

608

June

305 

270 

234 

185 

222

237 

200 

167 

141 

130

136 

139 

149 

159 

153

143 

130 

115 

108 

115

147 

132 

105 

80 

69

62 

56 

50 

43 

37

July

47 

70 

100 

85 

70

57 

47 

40 

36 

33

31 

29

26 

23

21

21 

21 

19 

18 

16

14 

13 

11 

9.5 

8.6

6.8 

5.9 

5.9 

5.4 

4.7 

4.4

IH-ntinrflflj

5.8 

1.6

-

4.2 

37 

37 

4.4 

1.3 

2.8

-

Aug.

3.7 

2.8 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

3.1

2.8 

2.8 

2.8 

2.8 

2. -8

2.8

2.4 

2.4 

2.4

2.1 

1.8 

1.3 

1.3

1.3

1.6 

7.7 

7.7 

6.4 

5.0 

4.0

Mean

9.96 

3.71 

1.2

63.0

1.1 

1.3 

2.3 

13.1 

321 

141 

2^.0 

3.01 

10.7

45.0

Sept.

3.4 

3.4 

2.8 

3.4 

5.4

6.8 

5.4 

4.4 

4.4 

5.0

8.6 

10 

13 

13 

12

10 

9.5 

8.6 

10 

10

13 

13 

12 

11 

10

10 

10 

14 

30 

49

Run-off in

acre-feet

612 

221 

74

45,640

68 

75 

141 

782 

19,730 

8,370 

1,780 

185 

637

32,680

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 14 to Apr. 16.

9-252 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeologi J. Surrey
GREEN RIVER BASIN 97

Silver Creek near Big Sandy, Wyo.

Location.- Water-stage recorder, lat. 42°45', long. 109°31', in sec. 17, T. 32 N., R. 106 

W., at Miller ranch, 1 mile downstream from South Fork, 8 miles north-vest of Big Sandy, 

and 11 miles east of Boulder.

Drainage area.- 45.4 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 326 second-feet May 10 (gage height, 5.57 feet), 

from rating curve extended above 250 second-feet; no flow Oct. 1-24, Oct. 29 to liar. 

24, Aug. 2 to Sept. 30.

1938-40: Maximum discharge, 381 second-feet May 5, 1939 (gage height, 5.74 feet), 

from rating curve extended above 250 second-feet; no flow at tines during each year.

Remarks.- Records excellent Apr. 19 to July 5, fair for remainder of year. One small 

diversion above station.

Cooperation.- Records collected in cooperation with Bureau of Reclamatioi.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1.1.1

0

0

0

Hov. Dec. Jan. Feb.

Month

Oot 

Hoy

Calendar year 1939 ......................

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

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

Jun 

Jul 

Aug 

Sep

y. .....................................

Water year 1939-40............... .......

Har.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.3

.3

.3

.3

.4

Apr.

0.4

.3

.3

.3

.4

.5

.6

.6

.7

.8

.8

.9

1.5

3.5

6.4

6.0

5.5

6.1

7.3

8.5

7.6

7.0

6.4

7.3

7.9

8.8

9.8

9.4

9.4

7.6

Seoondf dot-days

0.4 

0

0

10,:235.9

0

0

1.9

133.6

3, 896. 3 

1,231.9 

81.7 

.1 

0

5,344.9

May

5.5

9.8

35

43

41

40

44

87

145

317

343

240

332

303

193

180

156

140

127

119

104

96

88

87

87

91

163

214

203

155

116

MayfrflniTq

0.1 

0

0

331

0

0

.4 

9.8

343

95 

13 

.1 

0

243

June

91

75

67

63

89

95

75

69

66

57

48

40

35

37

39

24

30

18

32

37

19

10

7.9

16

38

34

30

16

14

11

July

10

12

13

13

7.9

4.7

3.9

3.0

2.2

Ii9

1.6

1.3

1.0

.9

.8

.8

.7

.6

.6

.4

.3

.3

.3

.3

.3

.3

.Z

.Z

.1

.1

.1

Minimum

0 

0

0

0

0

0

0

.3

5.5 

7.9 

.1 

0

0

0

Aug.

0.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

f«an

0.01

0 

0

38.0

0

0

.06

4* 42

126 

41.1 

2.64 

0

0

14.6

Sept.

Run-off In 

acre-feet

0.8

0 

0

20,300

0

0

3.8

363

7 730 

2)440 

163 

.2

0

10,600

Note.- No gage-height record for periods Oct. 1 to Apr. 18 and July 6 to Sept. 30; discharge 

imputed on basis of six discharge measurements, engineers' notes, and weathsr records.

9-232 February 1936

UNITED STATES DEPAP"IMENT OF THE INTERIOR 

Oeolog. il Surrey
98 GREEN RIVER BASIN

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

Location.- Water-stage recorder, lat. 4G°05', long. L10°01', in sec. 20, T. 3fi N., R. 

110 W., 2 miles downstream from New Foi-k Lake and 9 miles north of Cora.

Drainage area.- 36.2 square miles.

Records available.- October 193S to September 1940.

Extremes.- Maximum discharge during year, 342 second-feet May 24 (gage height, 5.06 feet); 

minimum daily, 0.9 second-foot when fates at New Fork Lake were closed.

1938-40: Maximum discharge, that of May 24, 1940; minimum, 0.9 second-foot when 

gates at New Fork Lake were closed.

Remarks.- Records excellent except those for period 01' Ice effect, which are fair. Flow 

regulated for irrigation by New Fork Lake (capacity, 45,900 acre-feet). Ho diversions 

above station.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Rating tables, water year 1939-40, except period of ice effect (gage height, in feet, and 

discharge, in second-feet)

Oct. 1 to Nov. 16 Nov. 17 to Sept. 30

2.6

2.7

2.8

2.9

3.0

3.1

3.2

3.3 

3.5

0.9 

1.3 

1.9 

3.1 

4.8 

7.5

.7 

.8

2.9

3.0

3.1

3.2

3.3 

3.5

0.9

1.3

1.9

3.8

6.0

9.0

14

21

37

3.6

3.7

3.8

3.9 

4!o

4.1

4.2 

4.5 

5.1

116

136

202

352

Discharge, la second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

IS 

17 

18 

19 

20

21 

22 

23 

24 

25

29 

27 

28 

29 

90 

31

Oct.

32 

31 

30 

28 

28

28 

27 

26 

26 

24

23 

22 

21 

21 

20

20 

19 

18 

18 

17

17 

16 

16 

15 

16

17 

17 

16 

16 

14 

15

HOT.

14 

14 

13 

13 

8.8

1.6 

1.3 

1.1 

1.0 

1.0

.9 

.9 

.9 

.9

1.1 

1.0 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

Dec. Jan. Feb.

,

Month

Oet 

Ho? 

Dec

C

Jan 

Fefc 

Mar 

Apr

"?'

Jim

Jul 

Aue

Sep

11

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

alendar year 1939. .....................

uary

ater year 1939-4C

Mar. Apr.

2.0 

1.8 

 1.6 

1.6 

1.7

1.8 

1.7 

1.7 

1.7 

1.7

1.7 

1.7 

1.3 

1.8 

1.9

2.1 

1.9 

2.3 

1.9 

2.1

1.8 

1.9 

1.9 

2.3 

2.3

2.3 

1.9

1.8 

1.8 

1.7

Seoondfoot-days

654 

87.1 

27.9

18,287.8

27.9 

29.0 

43.4 

56.2 

3,078.6 

5,694 

1,550 

256.9 

194.7

11,699.7

May

1.7 

1.8 

1.8 

1. 

1.

1. 

1. 

1.

1. 

1.7

1.7 

1.8 

1.9 

1.8 

1.8

1.7 

1.6 

1.7 

1.7 

1.7

10 

231 

282 

297 

336

331 

326 

318 

313 

303 

297

Mn-y<Timtn

32 

14

320

2.3 

336 

295 

124 

16 

12

336

June

295 

257 

224 

221 

180

149 

147 

147 

145 

162

178 

178 

189 

224 

224

224 

193

176 

176 

176

187 

221 

214 

204 

193

187 

178 

162 

149 

134

July

124 

112 

100 

92 

85

78 

72 

67 

63 

58

54 

51 

48 

45 

43

41 

40 

38 

35 

34

32 

31 

29 

27 

26

24 

23 

21 

20 

19 

18

Minimum

14 

.9

_

1.6 

1.6 

134 

18 

4.7 

3.2

-

Aug.

16 

15 

14 

12 

12

12 

10 

10 

9.5 

9.5

9.0 

8.7 

8.4 

8.1 

7.8

7.5 

7.2 

6.9 

6.6 

6.3

6.0 

6.0 

5.8 

5.6 

5.6

5.6 

5.8 

5.3 

5.1 

4.9 

4.7

Mean

21.1 

2.90 

.9

50,1

.9 

1.0 

1.4 

1.87 

99.3 

190 

50.0 

8.89 

6.49

32.0

Sept.

4.5 

4.2 

4.5

4.7 

4.7

4.5 

4.7 

4.9 

5.1 

5.1

5.3 

5.3 

5.6 

6.0 

6.3

6.3 

6.3 

6.6 

7.2 

7.5

7.8 

8.1 

8.1 

8.1 

8.4

8.7 

9.0 

12 

12 

3.2

Run-off in 

acre-feet

1,300 

173 

55

36,280

55 

58 

86 

111 

6-110 

11,290 

3,070 

510 

386

23,200

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 17 to Apr. 10.

UNITED STATES DED MtTMENT OF THE INTERIOR
GREEN RIVER BASIN 99

New Fork near Plnedale, Wyo.

Location.- Water-stage recorder, lat. 42°50', long. 109°51', in sec. 15, T. 33 N., R. 

109 W., a quarter of a mile upstream from Pine Creek and 2 miles south of Plnedale.

Drainage area.- 241 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 240 second-feet probably on June 4 (gage 

height, 6.94 feet); minimum dally, 13 second-feet May 18-21, 23.

1938-40: Maximum discharge, 771 second-feet Mar. 25, 1939 (gage height, 7.93 

feet), from rating curve extended above 320 second-feet; minimum dally, that of May 

18-21, 23, 1940.

Remarks.- Records good except those for Nov. 16 to Apr. 25 and those for period of no 

gage-height record, which are fair. Flow regulated for irrigation by New Fork Lake 

(capacity, 45,900 acre-feet). Diversions above station for irrigation.

Cooperation.- Records collected In cooperation with Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

8

9

10

11

18

IS

14

16

16

17

18

19

20

81

82

S3

84

85

86

27

28

89

SO

31

Oct.

37

38

41

40

39

36

37

38

39

37

37

36

37

39

40

39

39

393'

39

37

37

37

3S

39

38

38

37

40

38

40

HOT.

40

40

39

39

33

33

33

33

39

34

34

34

36

33

33

36

36

41

42

39

37

36

35

37

36

33

35

34

33

35

-

Dec.

37

39

39

44

43

48

37

3S

37

39

3S

37

36

37

35

35

39

36

34

33

33

33

34

32

31

31

28

2S

2S

27

28

Jan.

28

30

30

23

23

26

24

23

22

22

*20

19

19

19

20

20

20

20

20

19

19

19

19

19

20

22

24

24

26

26

24

Feb.

24

25

26

25

25

*25

24

24

24

25

25

25

24

25

25

25

24

24

24

24

23

23

23

24

26

28

30

32

34

.

-

Month

Calendar year 1939.... ..................

March, ....................................

Apr 1 1 .....................................

fcf.. .....................................

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

Water year 1939-4

Mar.

32

32

34

34

34

34

32

32

31

31

30

88

»S8

30

31

30

32

32

33

33

37

47

58

67

76

74

86

84

73

77

90

Apr.

92

74

66

54

58

60

58

56

51

51

51

45

51

53

53

73

86

84

70

52

32

25

20

22

22

27

26

23

22

21

-

Secondfoot-days

1,187

1,078

1,094

23,770

699

735

1,402

1,478

650

2,450

1,960

723

544

14,000

May

19

IS

IS

IS

17

17

17

17

17

17

17

IS

20

17

16

15

14

13

13

13

13

14

13

14

15

17

22

37

53

63

58

|*fl Tinny

41

42

48

473

30

34

90

92

63

180

122

34

30

ISO

June

43

56

76

al80

a!75

a!65

a!50

al25

al!5

a95

a80

a70

a65

a60

56

56

63

68

73

67

58

5S

63

67

64

67

61

56

52

59

-

July

110

122

122

114

100

83

76

67

59

54

51

50

59

45

44

56

71

70

66

63

58

51

48

45

46

46

46

40

35

33

30

Minimum

3C33

27

18

19

23

23

2T

13

4T

3T

17

14

15

Aug.

32

34

32

30

30

31

30

29

30

30

25

22

22

22

22

21

20

20

19

20

19

18

18

18

19

20

20

19

17

17

17

Mean

38.3

35.9

35.3

65.1

22.5

S5.3

45.2

49.3

21.0

81.7

63.2

23.3

18.1

38.3

Sept.

17

17

a!8

22

22

21

21

20

21

20

15

15

15

16

16

16

15

16

16

16

15

15

15

14

14

16

16

25

30

30

-

Run-off in 

acre-feet

2,350

2,140

2,170

47, 130

1,390

1,460

2,780

2,930

1,290

4,860

3,890

1,430

1,080

27,770

 Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for station near Cora.

Hote.- Stage-discharge relation affected by Ice Nov. 26-30, Dec. 13, 15, 18, 19, 21, Dec. 25 to

9-838 February 1936

UNITED STATES DEPM»mWENT OF THE INTERIOR 

Qeolog. il Survey
100 GREEN RIVER BASIN

New Fork near Boulder, Wyo.

Location.- Water-stage recorder, lat. 42°45', long. 109°44', In sec. 9, T. 32 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 1940.

Average discharge.- 25 years, 390 second-feet.

Extremes.- Maximum discharge during year, 1,340 second-feet May 29 (gage height, 4.24 

feet); minimum dally, 60 second-feet Feb. 21, 22.

1915-40: Maximum discharge observed, 12,300 second-feet June 17, 1918 (gage 

height, 8.7 feet), from rating curve extended above 6,000 second-feet; minimum discharge, 42 second-feet Dec. 15-17, 1915.

Remarks.- Records excellent except those for periods of ice effect, which are fair. 

Diversions above station for Irrigation.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Rating table, water-year 1939-40, except period of ice effect (gage height, in feet, and

discharge, in second-feet) 

(Shifting-control method used Mar. 26 to Apr. 23)

1.6

1.7

1.8 

2.0 

2.2 

2.4

52

70

90

134

182

2.6 

2.8 

3.1 

3.5 

4.0 

4.3

310

395

545

780

1,130

1,390

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

e

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

119 

125 

127 

123 

121

119 

116 

112 

119 

116

116 

114 

112 

116 

114

114 

112 

112 

112 

112

112 

114 

116 

121 

125

121 

121 

121 

121 

119 

116

HOT.

119 

119 

116 

116 

110

105 

105 

108 

108 

103

103 

103 

103 

105 

105

100 

105 

105 

100 

100

105 

100 

105 

105 

105

100 

100 

100 

96 

96

Dec.

105 

105 

105 

120 

135

*160 

150 

145 

150 

150

155 

145 

135 

125 

130

130 

125 

125 

120 

110

105 

100 

98 

96 

92

88 

86 

84 

82 

84 

88

Jan.

90 

92 

88 

84 

*81

78 

76 

74 

76 

78

76 

72 

70 

70 

72

72 

74 

72 

68 

64

62 

62 

64 

66 

68

72 

74 

76 

78 

78 

74

Feb.

72 

74 

76 

74 

72

72 

74 

72 

70 

72

70 

66 

64 

66 

68

66 

64 

62 

64 

62

60 

60 

62 

66 

70

76 

82 

84 

90

Month

Oct 

Nov 

Dec

C

Jan

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

9

uary

 ter year 1939-4

Mar.

88 

84 

86 

88 

86

80 

82 

80 

78

74 

70 

68

*67 

70

74 

82 

80 

84 

88

94 

92 

100 

110 

120

144 

151 

153 

141 

141 

158

Apr.

165 

158 

144 

130 

127

125 

125 

123 

121 

114

112 

108 

105 

110 

112

127

141 

136 

127 

112

94 

84 

76 

78 

82

84 

88 

80 

76 

74

Secondfoot-days

3,638 

3,150 

3,628

109,483

2,301 

2,030 

2,995 

3,338 

13,988 

21,771 

6,018 

3,340 

2,415

68,612

May

72 

70 

70 

68 

65

63 

63 

65 

66 

72

80 

92 

175 

330 

515

578 

600 

606 

594 

584

556

510 

450 

515 

578

715 

906 

1,120 

1,310 

1,280 

1,220

llmHimim

127 

119 

160

1,440

92 

90 

158 

165 

1,310 

1,260 

300 

151 

121

1,310

June

,180 

,190 

,260 

,220 

,190

,170 

,080 

962 

864 

715

685 

622 

578 

572 

611

685 

754 

820 

787 

600

578 

567 

550 

525 

470

420 

346 

286 

244 

231

July

286 

300 

268 

250 

247

228 

216 

204 

190 

188

193 

190 

180 

170 

168

185 

202 

199 

188 

188

182 

170 

163 

165 

160

160 

158 

175 

153 

144 

148

Minimum

112

96 

82

82

62 

60 

67 

74 

63 

231 

144 

78 

66

60

A.g.

151 

148 

141 

134 

130

130 

127 

123

119 

116

112 

105 

108 

108 

114

112 

108 

103 

101 

101

90 

84 

78 

80 

84

92 

97 

92 

88 

84 

80

He an

117 

105

117

300

74. P 

70. C 

96. e 

111 

451 

726 

194 

108 

80. £

187

Sept.

80 

80 

84 

97 

90

80 

78 

78 

82 

82

76 

72 

74 

80 

76

74 

70 

72 

74 

76

72 

68 

66 

68 

70

72 

74 

110 

121 

119

Run-off in 

aero-feet

7,220 

6,250 

7,200

217,200

4,560 

4,030 

5,940 

6,620 

27,740 

43, 180 

11,940 

6,620 

4,790

136, 100

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 16-23, Nov. 25 to Mar. 25.

-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolog al Surrey
GREEN RIVER BASIN 101

Willow Creek near Cora, Wyo.

Location.- Water-stage recorder, lat. 43°00', long. 10y°56', In sec. 14, T. 35 N., R. 

110 W., a quarter of a mile downstream from forks and 4s miles northeast of Cora.

Drainage area.- 41.8 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 49 second-feet Apr. 17 (gage height, 6.51 

 feet), from rating curve extended above 30 second-feet; minimum dally, 0.8 secondfoot Aug. 4, 5, 10-19, Sept. 1-3, 16, 17, 26.

1938-40: Maximum discharge, 68 second-feet Mar. 31, 1939 (gage height, 6.79 feet), 

from rating curve extended above 30 second-feet; minimum dally, that of Aug. 4, 5, 

10-19, Sept. 1-3, 16, 17, 26, 1940.

Remarks.- Records gocd except those for periods of Ice effect, which are fair. Several 

small diversions above station for Irrigation.

Cooperation.- Records collected In cooperation with Bureau cf Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

IS 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.7 

5.6 

5.9 

5.6 

4.9

4.9 

5.1 

5.1 

4.9 

4.7

4.7 

3.9 

3.2 

3.2 

3.0

3.0 

3.0 

3.0 

2.8 

3.0

3.0 

3.0 

3.2 

3.0 

3.0

3.0 

3.0 

4.1 

4.5 

4.3 

4.5

Hov.

4.5 

4.5 

4.3 

4.5 

4.1

3.9 

4.1 

4.1 

4.1 

3.5

3.5 

3.7 

3.7 

3.5 

3.5

3.5 

3.7 

3.9 

4.5 

4.6

4.5 

4.3 

4.3 

4.3

4.3

4.3 

4.1 

3.7 

3.5 

3.5

Dec.

3.5 

3.2 

3.3 

3.3

3.5

3.5 

*3.5 

3.5 

3.5 

3.7

3.6 

3.5 

3.4 

3.5 

3.5

3.4 

3.6 

3.5 

3.4 

3.4

3.4 

3.5 

3.7 

3.7 

3.6

3.5 

3.5 

3.6 

3.6 

3.6 

3.9

Jan.

4.3 

4.3 

4.1 

4.1 

3.7

*3.6 

3.3 

3.1 

2.9 

3.0

2.9 

2.7 

2.6 

2.7 

2.7

2.7 

2.7 

2.8 

2.7 

2.6

2.5 

2.5 

2.6 

2.7 

2.8

3.0 

3.2 

3.4 

3.5 

3.4 

3.3

Feb.

3.3 

3.4 

3.5 

3.4 

3.3

3.3 

3.3 

3.2 

3.4 

3.5

3.4 

3.3 

3.2 

3.3 

3.4

3.3 

3.2 

3.2 

3.3 

3.2

3.1 

3.1 

3.3 

3.4 

3.6

3.8 

4.0 

4.2 

4.4

Month

Dot 

HOT 

Dec

C

Jan 

Peb 

Mar 

Apr 

Kay 

Jun 

Jul 

Aug 

Sep

H

alendar year 192 9......................

ater year!939-4C

Bar.

4.4 

4.2 

4.2 

4, 4 

4.6

4.4 

4.2 

4.4 

4.2 

4.2

4.0 

4.0 

3.8 

4.0 

4.2

4.2 

4.0 

4.4 

4.4 

4.6

5.4 

6.2 

8.0 

9.0 

10

10 

12 

11 

10 

11 

12

Apr.

11 

10 

8.9 

S.6 

10

13 

12 

10 

11 

10

10 

9.3 

16 

15 

13

19 

27 

25 

19

17

14 

11 

10 

12 

12

14 

12 

10 

10 

8.9

Seoondfoot-days

122.8 

120.4 

108.9

2,497.6

96.4 

99.3 

189.4 

388.7 

208.3 

78.3 

66.3 

31.2 

30.5

1,540.5

May

S.6 

6.8 

3.2 

3.2 

3.2

3.0 

2.8 

2.7 

2.2

2:4

3.3

4.7 r.5

9.6 

8.9

13 

11 

8.9 

9.3 

7.6

6.P 

5.1 

4.7 

5.6 

6.2

11 

13 

9.6 

8.2 

6.8 

7.9

Ma-riimmi

5.9

4.5 

3.9

44

4.3 

4.4 

12 

27 

13 

9.6 

3.5 

2.1 

2.2

27

June

7.3 

6.2 

5.3 

4.7 

9.6

6.5 

3.7 

3.9 

2.6

2.0

2.0 

S.2 

1.7 

E.O 

1.8

1.5 

1.3 

1.2 

1.2 

1.0

.0 

.9 

.9 

.9

1.2

1.0 

.9 

1.2 

1.3 

1.4

Jily

1.4 

2.0 

2.2 

3.5 

3.0

2.7 

2.4 

2.2 

2.4 

2.2

2.4 

2.2 

2.1 

2.0

1.8

2.6 

3.0 

2.8 

2.4 

2.2

2.2 

2.0 

2.0 

2.0 

2.0

2.0 

1.8 

1.4 

1.2 

1.2 

1.0

Aug.

0.9 

1.0 

1.0 

.8 

.8

.9 

.9 

.9 

.9 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8

.8 

.8 

.9

.9 

1.2 

1.2 

1.3 

1.5

2.1 

2.0 

1.3 

.9 

.9 

.9

Minimum Mean

2.8 3.96 

3.5 4.01 

3.2 3.51

2.3 6.84

2.5 3.11 

3.1 3.42 

3.8 6.11 

8.6 13.0 

2.2 6.72 

.9 2.61 

1.0 2.14 

.8 1.01 

.8 1.02

.8 4.21

Sept.

0.8 

.8 

.3 

.9 

1.0

1.0 

.9 

.9 

1.0 

1.0

.9 

.9 

.9 

1.0 

.9

.8 

.8 

.9 

1.0 

1.0

.9 

.9 

.9 

.9 

.9

.8 

.9 

2.1 

S.2 

1.8

Run-off in 

acre-feet

244 

239 

216

4,960

191 

197 

376 

771 

413 

155 

132 

62 

60

3,060

 Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Dec. 2-31, Jan. 7 to Apr. P,

9-252 February 19S6

UNITED STATES DEPATMEHT OF THE INTERIOR 

Qeolofc al Survey
102 GRSEN RIVER BASIN

Lake Creek near Cora, Wyo.

Location.- Water-stage recorder, lat. 43°00', long. 109°54', In sec. 19, T. 35 N., R. 109 

W., just downstream from Willow Lake and 5 miles northeast of Cora.

Drainage area.- 31.6 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 84 second-feet June 24; maximum gage height, 7.25 

feet June 21; minimum dally discharge, 0.1 second-foot Nov. 11 to Dec. 7, Dec. 13-28.

1938-40: Maximum discharge, 95 second-feet June 29, 1939 (gage height, 7.30 feet); 

minimum dally, that of Nov. 11 to Dec. 7, Dec. 13-28, 1939.

Remarks.- Records fair. Flow partly regulated for Irrigation by Willow Lake (capacity, 

15,000 acre-feet). No diversions above station.

Cooperation.- Records collected In cooperation with Bureau of Reclamation. 

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

1

8

9

10

11

12

13

14

IS

16

IV

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.5

3.2

2.9

2.7

2.6

2.5

2.4

2.2

2.1

2.1

1.9

1.6

1.4

1.2

1.0

.9

.8

.8

.7

.6

.6

.6

.6

.6

.5

.5

.4

.4

.4

.3

.3

HOY.

0.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1.! 

.1

.1

.1

.1

.1

.1

.1

-

Dec.

0.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

Jan.

..

(*)

 0.15

J

Feb.

.

 0.20

j

-

-

Month

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

Hay.......................................

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

Water year 1939-4 0....... ...............

liar.

,

 0.35

'

Apr.

0.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.8

.S

.S

.9

1.2

1.6

1.6

1.5

1.6

1.6

1.5

1.4

1.4

1.4

1.4

1.6

1.6

1.6

1.6

1.6

-

Secondfoot-days

42.3

4.3

3.9

7,281.1

4.65

5.8

10.85

33.8

1 719

2*013

1, 837 1

26.4

46.6

5,747.70

Hay

16

34

34

34

34

40

44

44

48

58

59

62

6O

5S

61

61

61

63

65

65

64

65

64

63

64

65

67

67

67

66

66

Majcijmun

3.5

.3

.2

91

1.6

67

83

80

1.2

5.8

83

June

66

67

68

67

66

61

58

57

56

56

55

54

54

54

54

54

56

64

66

75

83

83

82

83

82

81

80

78

77

76

-

July

76

74

73

72

72

72

71

69

68

67

65

62

60

60

70

80

77

75

74

72

69

67

67

69

66

59

26

1.7

1.2

1.0

1.2

VJT^miTni

0.3

.1

.1

.1

.6

16

54

1.0

.6

.5

-

Aiv<.

1.2

1.0

.0

.0

.1

.1

.1

.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.8

.8

.8

.8

.7

.

.6

.6

.6

.6

.6

.6

Mean

1.36

.14

.13

19.9

.15

.20

.35

1.13

55.5

67.1

59.3

.85

1.55

15.7

Sept.

0.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

1.0

5.6

5.8

5.8

5.8

5.8

3.8

1.2

.8

-

Run-off in 

acre-feet

84

S.5

7.7

14,440

9.2

12

22

67

3,410

3,990

3,640

92

11,390

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 4 to Apr. 11.

-fXH February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeologl J. Survey
GREEN RIVER BASIN 103

Duck Creek at Cora, Wyo.

Location.- Water-stage recorder, lat. 42°56', long. 110°00', in sec. 4, T. 34 N., R. 110 

V., ffiree-quarters of a mile west of Cora.

Drainage area.- 27.0 square miles.

Records available.- November 1938 to September 1940.

Extremes.- Maximum discharge during year, 13 second-feet Apr. 17 (gage height, 2.14 feet); 

minimum daily, 4.8 second-feet Mar. 10-13.

1938-40: Maximum discharge, 65 second-feet Mar. 31 (gage height, 3.07 feet), from 

rating curve extended above 20 seccnd-feet; minimum daily, that of Mar. 10-13, 1940.

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

which are fair. Flow is mainly return water from irrigated lands.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, in second-feet, water year October 1939 to September 1940

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.

8.4 

8.9 

8.9 

8.6 

8.5

8.4 

8.4 

8.4 

8.3

8.4 

8.4 

8.3 

8.2 

8.3

8.3 

8.5 

8.5 

8.6 

8.8

8.6 

8.4 

8.4 

8.3 

8.3

8.2 

8.2 

8.3 

8.3 

8.2 

8.2

HOT.

8.2 

8.1 

8.1 

8.0 

7.9

7.8 

8.0 

7.9 

7.8

7.6 

7.6 

7.6 

7.6 

7.7

7.6 

7.2 

7.1 

7.3 

7.5

7.5 

7.5 

7.5 

7.5 

7.5

7.3 

7.5 

7.2 

7.1 

7.1

Dec.

7.4 

7.6 

7.5 

7.5 

7.4

7.6 

7.6 

7.8 

7.9

7.5 

7.1 

6.9 

6.8 

6.7

6.7 

6.6 

6.4 

6.3 

6.3

6.3 

6.3 

6.4 

6.4 

6.4

6.4 

6.5 

6.5 

6.6 

6.7 

6.8

Jan.

6.8 

6.8 

6.8 

6.8 

6.9

*6.8 

6.7 

6.6 

6.6

6.2 

6.1 

6.0 

6.0 

6.0

6.0

5.8 

5.8 

5.8 

5.7

5.6 

5.6 

5.6 

5.8 

6.0

6.0 

6.0 

6.1 

6.2 

6.2 

6.2

Feb.

6.3 

6.4 

6.4 

6.4 

6.4

6.4 

*6.4 

6.4 

6.4

6.3 

6.2 

6.2 

6.2 

6.2

6.0 

5.8 

5.8 

5.8 

5.7

5.6 

5.6 

5.6 

5.6 

5.5

5.5 

5.4 

5.4 

5.4

Month

Dot 

HOT 

Dec

C

Jan 

Pet 

Mar 

API 

Has 

Jmjui

Aug

Set

«

alendar year 192

11.....................................

ater yea

Mar.

5.4 

5.3 

5.2 

5.2 

5.1

5.0 

5.0 

5.0 

4.9

4.8 

4.8 

4.8 

4.9 

5.0

5.0 

5.0 

5.0 

5.0 

5.1

5.2 

5.8 

5.5 

5.6 

5.6

5.6 

5.8 

5.5 

5.5 

5.9 

6.2

Apr.

6.1 

6.2 

5.7 

5.8 

5.8

5.9 

5.8 

5.7

5.8

5.6 

5.8 

6.2 

5.9 

6.2

6.7 

6.6 

6.0 

5.8 

5.8

5.6 

5.6 

5.7 

5.9 

5.8

5.8 

5.7 

5.7 

5.6 

5.6

Seoondfoot-days

860.9 

227.8 

214.6

2,577.5

191.9 

173.7 

161.9 

176.1 

167.9 

160.5 

208.3 

221.6 

219.6

2,384.8

May

5.5

5.6 

5.6 

5.5 

5.5

5.5 

5.6 

5.5 

5.5

5.6 

5.6 

5.8 

5.4 

5.3

5.3 

5.3 

5.3 

5.3 

5.4

5.4 

5.4 

5.4 

5.4 

5.3

5.4 

5.4 

5.4 

5.2 

5.0 

5.0

Maximum

8.9 

8.2 

7.9

27

6.9 

6.4 

6.2 

6.7 

5.8 

5.8 

7.6 

7.8 

9.1

9.1

June

5.0 

5.0 

5.1 

5.1 

5.6

5.2 

5.0 

5.0 

5.0

5.1 

5.0 

5.1 

5.2 

5.2

5.3 

5.4 

5.5 

5.5 

5.5

5.7 

5.7 

5.7 

5.6 

5.6

5.6 

5.6 

5.6 

5.7 

5.8

Jrty

6.0 

6.0 

5.9 

6.0 

6.0

6.0 

6.0 

6.1 

6.2

6.4 

6.4 

6.5 

6.5 

6.6

7.3

7.6 

7.5 

7.4 

7.2

7.2 

7.3 

7.1 

7.1 

7.1

7.1 

7.1 

7.1 

7.1 

7.1 

7.1

Minimum

8.2 

7.1 

6.3

4.9

5.6 

5.4 

4.8 

5.6 

5.0 

5.0 

5.9 

6.9 

7.0

4.8

Aug.

7.2 

7.1 

7.1 

7.1 

7.1

7.1 

7.0 

7.0 

7.0 

6.9

6.9 

7.0 

7.0 

7.0 

7.0

7.0 

7.0 

7.0 

7.0 

7.2

7.3 

7.3 

7.2 

7.4 

7.5

7.8 

7.6 

a7.4 

a7.2 

7.1 

7.1

Mean

8.42 

7.59 

6.92

7.06

6.19 

5.99 

5.22 

5.87 

5.42 

5.35 

6.72 

7.15 

7.32

6.52

Sept.

.1 

.0 

.2 

.4 

.3

.1 

.1 

.1 

.2 

.1

.1 

.1 

.2 

.5 

.1

.0 

.0 

.5 

.3 

.1

7.0 

7.0 

7.0 

7.2 

7.2

7.3 

7.2 

9.0 

9.1 

8.1

Run-off in 

aero-feet

517 

452 

426

5,110

381 

345 

321 

349 

333 

318 

413 

440 

436

4,730

 Winter discharge measurement made on this day.

a No gage-height record; discharge interpolated.

Note.- Stage-discharge relation affected by ice Jan. 6 to Mar. 14.

9-232 February 1936

UNITED STATES DEPA^^MENT OF THE INTERIOR 

Oeolog. il* Survey
104 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. 109 

W., at Pinedale, 3 miles upstream from mouth. Datum of gage Is 7,164.3 feet above 

mean sea level (general adjustment of 1912).

Drainage area.- 118 square miles.

Records available.- April to October 1904, May 1915 to September 1940.

Average discharge.- 25 years (1915-40), 133 second-feet.

Extremes.- Maximum discharge during year, 782 second-feet June 3 (gage height, 3.20 feet); 

minimum dally, 4.4 second-feet Jan. 13, 14.

1904, 1915-40: 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 above 100 second-feet and fair below. Diversions above station for 

irrigation. Flow regulated by Fremont Lake.

Cooperation.- Records collected In cooperation with Bureau of Reclamation. 

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

8

3

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

80

SI 

22 

83 

84 

25

86 

27 

88 

29 

30 

51

Oct.

20 

20 

2O 

19 

19

18 

16 

19 

24 

24

24 

23 

22 

22 

20

19 

19 

19 

19 

19

20 

19 

21 

34 

28

28 

27 

26 

25 

24 

24

HOT.

24 

24 

24 

24 

23

23 

24 

23 

19 

17

16 

16 

16 

17

18

17 

19 

24 

23 

22

20 

15 

24 

25 

32

31 

34 

37 

39 

37

Dec.

36 

34 

32 

32 

31

33 

29 

38 

27 

26

26 

25 

24 

24 

23

23 

23 

22 

22 

22

21 

21 

20 

21

20

17 

15 

14 

14 

15 

15

Jan.

16 

14 

9.4 

8.1 

7.5

7.5 

11 

9.8 

5.2 

5.2

6.3 

4.6 

4.4 

4.4 

4.8

5.8 

5.2 

5.4 

5.2 

5.0

5.0 

5.5 

6.0 

7.0 

9.0

11 

13 

16 

19 

18 

18

Feb.

17 

19 

21 

20 

19

*20 

21 

20 

20 

21

20

18 

17 

18 

20

19 

17 

18 

19 

18

17 

17 

18 

19 

20

21 

22 

23 

22

Month

Got 

Hoy 

Dec

0

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 1939.................. ..

itst........ ..... . . ..

ater year 1939-4

Mar.

«20 

19 

20 

19 

18

16 

16 

16 

16 

16

15 

14 

14 

15 

14

15 

14 

14 

13 

13

13 

13 

13 

13 

12

13 

14 

13 

14 

14 

14

Apr.

15 

15 

15 

14 

15

15 

14 

14 

15 

14

12 

12 

11 

11 

11

11 

9.8 

8.1 

8.1 

8.1

8.4 

8.7 

9.8 

11 

14

9.0 

8.7 

8.4 

8.7 

8.4

Seoondfoot-days

681 

707 

735

35,326

272.3 

561 

463 

343.2 

4,118.5 

11,336 

1,532 

763 

340.2

21,852.2

Hay

8.4 

8.7 

8.1 

6.6 

6.6

7.2

7.8 

8.1 

7.8 

7.5

8.7 

10 

13 

15 

16

17 

12 

17 

18 

25

34 3-6 

68 

190 

205

264 

469 

596 

676 

662 

690

UmHimuM

34 

39 

36

435

19 

23 

20 

15 

690 

760 

74 

41 

23

760

June

717 

760 

760 

696 

656

583 

493 

415 

358 

308

278 

264 

275 

318 

383

435 

493 

493 

351 

275

302 

311 

302 

278 

241

207 

150 

97 

69 

68

July

74 

62 

58 

62 

56

52 

47 

42 

42 

55

53 

50 

46 

45 

42

46 

44 

45 

45

52

46 

42 

52 

56 

47

44 

55 

60 

37 

36 

39

m-rHTimm

16 

15'

14

14

4.4 

17 

12 

8.1 

6.6 

68 

36 

14 

8.4

4.4

Aug.

37 

29 

25 

23 

20

19 

IS 

16 

16 

14

14 

20 

41 

29 

27

26 

25 

24 

24 

24

24 

22 

24 

29 

29

28 

31 

29 

28 

25 

23

Mean

22.0 

23.6 

23.7

96.8

8.78 

19.3 

14.9 

11.4 

133 

378 

49.4 

24.6 

11.3

59.7

Sept.

21 

22 

23 

16 

9.0

8.4 

8.7 

9.0 

9.4 

9.8

9.8 

10 

11 

11 

11

11 

10 

9.8 

9.4

9.4

9.0 

9.0 

8.7 

8.7 

8.7

8.7 

8.7 

13 

14 

13

Run-off in 

acre-feet

1,350 

1,400 

1,460

70,070

540 

1,110 

918 

681 

8,170 

22,480 

3,040 

1,510 

675

43,330

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dee. 12, 13, Dee. 18 to Jan. 1, Jan. 20 to Mar. 1.

"-238 February 1936

UMITED STATES DEWTMENT OF THE IHTERIOR 

Oeolot. jal Survey
GREEN RIVER BASIN 105

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. 108

 W., li miles downstream from Little Half Moon Lake and 7 miles east of Pinedale.

Drainage area.- 87.5 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 555 second-feet May 28 (gage height, 5.36 feet);

 minimum daily, 3.7 second-feet Aug. 30 to Sept. 1, but probably less during period of 

ice effect.

1938-40: Maximum discharge, that of Hay 28, 1940; minimum daily, that of Aug. 30 to 

Sept. 1, 1940, but probably less during period of ice effect.

Remarks.- Records excellent except those for period of ice effect, which are fair. Several 

small diversions above station for irrigation.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

SO

21 

22 

83 

24 

25

26 

27 

28 

29 

SO 

SI

Oct.

6.4 

7.1 

7.1

6.4

6.4 

6.4 

7.1 

7.1 

7.1

7.1 

7.1 

7.1 

7.1 

7.1

7.8 

7.8 

7.8 

7.8 

7.8

7.8 

7.1 

7.1 

7.1 

7.1

7.8 

7.1 

7.1 

8.5 

6.4 

6.4

HOT.

7.1 

7.1 

7.1

7.1

7.1 

7 

7 

7 

5.5

5.5 

5.5 

6 

6 

6

5 

5 

5

5 

5

5 

6 

6 

6 

6

6 

6 

6 

5.5 

6

Dec.

(*)

Jan.

(*)

Feb.

Month

Oot 

Ho? 

Dec

C

Jan 

Pet 

Mar 

Apr

Jux 

Jul 

Aug 

Sep

H

alendar year 193 3......................

ater year 1939-4

Bar.

6.5 

6 

5.5 

5 

5

5 

5.5 

6.5 

6.5 

6

6 

5 

5.5 

6 

7

8 

8 

7.5 

7 

7

7 

7 

7 

7

B

7.9 

8.6 

7.9 

7.9 

7.9 

7.9

Apr.

8.6 

8.6 

8.6 

8.6 

8.6

8.6 

8.6 

8.6 

8.6 

8.6

8.6

8.6 

8.6 

8.6 

10

12 

14 

13 

10 

11

11 

13 

14 

15 

16

17 

18 

19 

20 

21

Seoondfoot-days

222.2 

181.6 

124.0

26,679.0

139.5 

145.0 

208.6 

354.4 

8,856 

7,803 

1,698 

280.0 

163.5

20,175.8

May

22 

23 

24 

26 

30

32 

37 

44 

52 

60

80 

136 

274 

404 

454

460 

465 

462 

457 

446

434 

406 

367 

346 

359

409 

490 

546 

544 

507 

460

Maximum

8.5 

7.1

495

8.6 

21 

546 

432 

109 

22 

9.3

546

June

426 

426 

432 

415 

388

356 

333 

301 

272 

241

214 

193 

185 

196 

229

267 

286 

291 

282 

265

24B 

234 

219 

205 

191

174 

156 

138 

126 

114

July

109 

100 

94 

91 

86

80 

76 

72 

72 

68

62 

60 

57 

53 

51

51 

48 

45 

42 

40

38 

36 

36 

36 

33

30 

28 

27 

27 

26 

24

Minimum

6.4

5

-

5 

B.6 

22 

114 

24 

3.7 

3.7

-

Aug.

22 

20 

19 

17 

16

14 

13 

12 

11 

10

9.3 

8.6 

8.6

7.9 

7.2

7.2 

7.2

6.5 

5.8

5.1 

5.1 

5.1 

4.4 

4.4

5.1 

5.1 

4.4 

4.4 

3.7 

3.7

Hean

7.17 

6.05 

4.0

73.1

4.5 

5.0 

6.73 

11.8 

286 

260 

54.8 

9.03 

5.45

55.1

Sept.

3.7 

4.4 

5.1 

5.8 

6.5

6.5 

6.5 

5.8 

5.8 

5.8

5.8 

5.1 

5.8 

5.8 

4.4

4.4 

4.4 

4.4 

4.4 

5.1

5.1 

4.4 

4.4 

4.4 

4.4

4.4 

4.4

8.6 

9.3 

8.6

Run-off in 

acre-feet

441 

360 

246

52,940

277 

288 

414 

703 

17,570 

15,480 

3,370 

555 

324

40,030

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation -ffected by ice Nov. 7 to Mar. 25.

9-832 February 19S6

UNITED STATES DEPAP"1MENT OF THE rHTERIOR 

Qeolog. il Surrey
106 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 Plnedale.

Drainage area.- 37.2 square miles.

Records available.- October 1938 to September 1940. May 1904 to October 1905, at site li 

miles downstream (published as Fall Creek at Fayette); records equivalent.

Extremes.- Maximum discharge during year, 180 second-feet May 17 (gage height, 4.79 feet); 

minimum, 0.3 second-foot Dec. 4 (discharge measurement).

1904-5, 1938-40: Maximum discharge, 480 second-feet June 19-21, 1904 (gage height, 

3.00 feet, site and datum then In use), from rating curve extended above 200 secondfeet; minimum, that of Dec. 4, 1939.

Remarks.- Records good May 8 to Sept. 30; others poor. Practically no divers'ons above 

station.

Cooperation.- Records collected In cooperation with Bureau of Reclamation. 

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

2.0 

1.9 

1.7 

1.6

tl.5 

1.4 

1.4 

1.2 

1.0

.9 

.9 

.9 

t.9 

.9

.8 

.7 

.6 

.6 

.6

.6 

.5

t.s

.5 

.4

.4 

.4 

.4 

.4 

.4 

.4

Hov.

> 0.4

Dec.

(t)

 0.45

Jan.

(t)

 0.6

Peb.

' 0.95

Month

Dot 

HOT 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

nary

11.....................................

bomber. ................................

ater year lP.^9-4(

Mar.

. 1.6 

(t)

Apr.

(t)

» 1.9

(t)

Secondfoot-days

28.8 

12.0 

14.0

10,417.0

18.6 

27.6 

49.6 

57.0 

2,827.5 

2,063 

747.5 

86.0 

84.2

6,015.8

May

2.0 

1.9

1.8 

H.7 

1.7

1.8 

2.1 

2.7 

3.7 

4.8

8.3 

14 

42 

113 

153

168 

177 

174 

167 

160

147 

129 

121 

124 

142

159 

171 

171 

167 

153 

143

MmrlimiiB

2.4

194

177 

142 

37

10'

177

June

142 

140 

133 

118 

106

99 

91 

82 

74 

68

63 

62 

66 

70 

73

72 

68 

63 

58 

53

48 

44 

40 

36 

33

30 

27 

2S 

40 

36

July

32 

30 

29 

28 

30

36 

33 

31 

29 

27

25 

26 

37 

34 

32

30 

27 

26 

24 

22

21 

19 

18 

16 

15

13 

13 

13 

12 

10 

9.5

Minimum

0.4

.

1.7 

27 

9.5 

1.8 

1.4

-

Aug.

7.9 

7 

5.9 

4.S 

4.3

3.9 

3.3 

2.7 

2.4 

2.4

2.4 

2.4 

2.1 

2.1 

2.1

2.0 

2.0 

2.0 

2.0 

2.0

1.9 

1.9 

1.9 

1.9 

1.9

1.8 

1.8 

1.8 

1.8 

1.8 

1.8

Mean

0.93 

.4 

.45

28.5

.6 

.95

1.6 

1.9 

91.2 

68.8 

24.1 

2.77 

2.81

16.4

Sept.

1.8 

1.8 

1.8 

1.8 

1.7

1.7 

1.7 

1.5 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.5

1.5 

1.5 

1.5 

1.5 

1.5

1.5 

1.4 

1.4 

1.4 

2.7

6.7 

6.7 

10 

9.9 

9.5

Run-off In 

acre-feet

57 

24 

28

20,650

37 

55 

98 

113 

5,610 

4,090 

1,480 

171 

167

11,930

tDiseharge measurement made on this day.

Note.- No gase-height record Oct. 1 to May 7 (stage-discharge relation affected by lee during 

part of period); discharge computed on basis of nine discharge measurements and weather records.

9-232 February 1936

UNITED STATES DEPAF-TCEIIT OP THE IWEBRIOR 

Qeolog al Survey
GREEN RIVER BASIN 107

Boulder Creek belo%. 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 1940.

Extremes.- Maximum discharge during year, 1,070 second-feet May 28 (gege height, 4.21 feet); 

no now Nov. 28 to Apr. 15.

1938-40: Maximum discharge, 1,200 second-feet (caused by Boulder Lake dam failure) 

Nov. 25, 1938 (gage height, 4.54 feet); no flow Nov. 28, 1939 to Apr. 15, 1940.

Remarks.- Records excellent except those below 10 second-feet, which are fair. Flow 

slightly regulated by Boulder Lake (capacity, 11,000 acre-feet), t'o diversions above 

station.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Aug. 17 to Sept. 12, Sept. 18)

1.1

2.6

1.1

1.2

1.3

1.4

4.9

8.0

12

1.5

1.6

1.7

1.8

1.9 

2.2 

2.4 

2.6

70

128

174

236

3.0 

3.5 

4.2

410

660

1,060

Discharge, In second-feet, water year October 1939 to SeptembeDay

1 

8 

3

4 

5

6 

7 

S 

9 

10

11 

12 

IS

14 

15

16 

17 

IS 

19 

80

81 

88 

83 

84 

25

26 

27 

28 

29 

90 

31

Oct.

14 

14 

14 

14

14

14 

14 

14 

14 

14

14 

14 

14 

14 

13

12 

12 

12 

12 

12

12 

12 

12 

11 

11

10 

11 

12 

12 

11 

8.4

HOT.

4.7 

.5 

.4 

.3 

.2

.2 

.1 

.1 

.1 

.1

.1 

.2 

.3 

.3 

.4

*.4 

.4 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.1

.1 

0 

0 

0

Dec. Jan. Feb.

Month

Oot 

Ho? 

Dec

C

Jan 

Pet 

Har 

Apr 

Hay 

Jvm 

Jul 

Aug 

Sep

H

alendar year 193 9......................

ater year 1939-4

Mar. Apr.

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

4 

5 

5 

5 

5

4.7 

25 

26 

29 

41

66 

66 

62 

62 

60

Seoondfoot-days

391.4 

11.0 

0

50,251.4

0 

0 

0 

444.1 

14,798 

10,684 

6,229 

760.1 

649.9

33,967.5

Ray

60 

64 

72 

75 

84

90 

94 

98 

102 

122

146 

185 

233 

289 

324

445 

698 

737 

742 

820

754 

640 

620 

710 

820

910 

1,010 

1,060 

1,030 

922 

842

Ma-riimim

14 

4.7 

0

1,050

0 

0 

0 

66 

1,060 

803 

236 

100 

55

1,060

June

803

776 

726 

645 

570

560 

485 

360 

334 

324

280 

248 

285 

294 

260

272 

285 

276 

272 

268

256 

233 

236 

236 

229

233 

233 

240 

236 

229

July

219 

229 

219 

209 

2O5

219 

226 

226 

226 

229

236 

229 

222 

222 

226

222 

219 

209 

202 

205

209 

202 

205 

196 

180

169 

157 

146 

132 

122 

112

Minimum

8.4 

0 

0

0

0 

0 

0 

0 

60 

229 

112 

1.4 

.5

0

Aug.

100 

88 

77 

67 

61

52 

47 

41 

37 

34

30 

27 

24 

21 

18

9.6 

2.3 

2.0 

1.7 

1.7

1.6 

1.4 

1.4 

1.4 

1.4

2.3 

2.2 

2

1.7 

1.7 

1.7

Mean

12.6 

.37 

0

138

0 

0 

0 

14.8 

477 

356 

201 

24.5 

21.7

92.8

Sept.

1.6 

1.4 

1.6 

1.2 

1.4

1.1 

1.0 

1.0 

1.0

.8

.5 

.5 

6.8 

12 

12

12 

6.S 

2.2 

21 

54

54 

51 

38 

55 

52

50 

48

54 

54 

54

Run-off in 

acre-feet

776 

22 

0

99,680

0 

0 

0 

881 

29,350 

21,190 

12,360 

1,510 

1,290

67,380

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 9 to Apr. 10.

9 -25 400453 0-41-8

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolog. il Surrey
108 GREEN RIVER BASIN

South Plney Creek near Big Plney, Wyo.

Location.- Water-stage recorder, lat. 42°31', long. 110°19', In sec. 9, T. 29 N., R. 113 

W., 200 feet downstream from Beaver Creek and 10 miles southwest of Big Plney.

Drainage area.- 117 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 76 second-feet May 29 (gage height, 5.89 feet); 

minimum dally, 8.1 second-feet Aug. 4, 13, 17, 18.

1938-40: Maxlrm m discharge, 321 second-feet May 31, 1939 (gage height, 7.56 feet), 

from rating curve extended above 200 second-feet; minimum daily, that of Aug. 4, 13, 17, 

18, 1940.

Remarks.- Records'excellent except those for Feb. 28 to Mar. 10, Aug. 1 to Sept. 30, which 

are good and those for periods of Ice effect or no gage-height record, which are fair. 

No diversions above station.

Cooperation.- Records collected In cooperation with Bureau of Reclamation.

Rating tables, water year 1939-40, except period of ice aff (gage height. In feet, and discharge,

in second-feet) 

(Shifting-control method used Feb. 28 to Mar. 8, Aug. 11 to Sept. 30)

Oct. 1 to Jan. 31

5.3 20

5.4 26

5.5 33

4.9

5.0 

5.3

Feb. 1 to Sept. 30

48

66

5.6 

5.8

27

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

S 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

82 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

26

28 

29 

28 

27

26 

25 

26 

25 

25

25 

25 

25 

26 

25

26 

26 

25 

25

25

26 

25 

25 

25 

25

25 

25 

25

27 

25 

25

Hov.

25 

25 

24 

24 

24

22 

24 

23 

24 

21

22 

23 

22 

23 

22

21 

22 

22 

21 

20

20 

22

21 

20 

21

22 

20 

20

20 

20

Dec.

21 

19 

19 

22 

22

20 

21 

21 

21 

21

22 

20 

19 

19 

19

20

21 

20 

19 

18

17 

16 

16 

16 

15

14 

15 

15 

16 

17 

18

Jan.

18 

19 

19 

19 

18

18 

17 

16 

17 

18

19 

18 

 17 

16 

16

17 

18 

17 

16 

15

16 

17 

17 

18 

19

20 

21 

22

22 

21 

21

Feb.

21 

21 

21 

22 

21

22 

22 

20

21 

22

21 

21 

19 

20 

22

21 

21 

21 

21 

21

20

21 

21 

22 

22

23

24 

25 

25

Month

Oot 

Hov 

Dec

C

Jan 

Fob 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

W

alendar year 193 9...... .................

11.....................................

ater year 193 F-4 0. .....................

Mar.

24

24 

22 

24 

22

26 

26 

24 

28 

25

26 

24 

26 

27 

28

25

26 

24 

26 

25

26 

28 

30 

29 

30

31 

30 

28 

26 

28 

27

Apr.

30

29 

24 

24 

28

23

22 

22 

22 

22

22 

20 

22 

22 

23

26 

23 

22 

24 

27

30 

31 

30 

35 

38

36 

35 

30 

30 

27

Seoondfoot-days

796 

660 

579

22,046

562 

624 

815 

799 

1,060 

1,229 

549 

304 

381.6

8,358.6

Hay

27 

30 

31 

31

28

28 

26 

26 

25 

24

26

29 

37

35 

34 

34 

33 

34

36 

36 

35 

35 

35

35 

40 

44 

59 

49 

46

Mmr^wmm

29 

25 

22

277

22 

25 

31 

38 

59 

63 

33 

15 

23

63

June

46 

48 

53 

54 

63

59 

54 

51 

51

47 

44 

42 

42 

43

43 

44 

44 

43 

38

34 

32 

30 

30

28

26 

23 

23 

23

22

July

30 

33 

27 

25 

24

22

21 

20 

19 

18

18 

19 

18 

15 

15

17 

23 

21 

a20

a!8

a!4 

a!2 

a!2 

all 

all

11 

11 

11 

11 

11 

11

Minimum

25 

20 

14

14

15 

19 

22 

20 

34 

22 

11 

8.1 

9.0

8.1

Avg.

9.6 

9.0

8.7 

8.1 

8.4

9.6 

P. 6 

10 

8.7 

11

8.7 

8.4 

8.1 

8.7 

8.7

8.4 

8.1 

8.1 

8.7 

9.6

11 

11 

10 

11 

15

15 

13 

11 

9.6 

9.6 

9.6

Mean

25.7 

22.0 

18.7

60.4

18.1 

21.5 

26.3 

26.6 

34.2 

41.0 

17.7

y.ci

12.7

22.8

Sept.

9.6 

9.6 

9.6 

10 

11

9.6 

9 

9.6 

11 

13

13 

12 

13 

11 

10

10 

9.6 

11 

12 

14

16

14 

14 

13 

13

15 

14 

19 

23 

23

Run-off in 

acre-feet

1,580 

1,310 

1,150

43,730

1,110 

1,240 

1,620 

1,580 

2,100 

2,440 

1,090 

603 

757

16,580

 Winter discharge measurement made on this day.

a No gage-height record; dlecharge computed on basis of records for Middle Piney Creek below 

South Fork, near Big Piney, Wyo.

Hote.- Stage-discharge relation affected by ice Dec. 2 to Feb. 27.

P-232 February 1936

UNITED STATES DEPA"TMENT OF THE INTERIOR 

Oeolofc. al Surrey
GREEK RIVER BASIN 109

North Piney Creek near Mason, Wyo.

Location.- Water-stage recorder, lat. 32°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 Septemb3r 1940.

Extremes.- Maximum discharge during year, 218 second-feet June 2 (gaga height, 2.69 

feet); minimum dally, 7 second-feet Feb. 20, 21.

1915-16, 1931-40: Maximum discharge, 613 second-feet June 19, 1916 (gage height, 

3.93 feet), from rating curve extended above 450 second-feet; minimum not determined, 

probably occurred during winter.

Remarks.- Records excellent except those for period of no gage-height record, which are 

fair, and those for period of Ice effect, which are poor. Several small diversions 

above station.

Cooperation.- Records collected in cooperation with Bureau of Reclamation. 

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

S 

3

4 

S

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

IS 

17 

18 

19 

SO

21

es 

es

24 

25

26 

27 

28 

89 

SO 

SI

Oct.

17 

18 

19 

18 

17

17 

19 

20 

19 

19

19 

19 

18 

18 

18

18 

18 

18 

17 

17

17 

17 

17 

17 

17

17 

16 

17 

17 

17 

17

lov.

17 

17 

17 

17 

14

15 

17 

15 

16 

18

19 

19 

19 

19 

19

20 

22 

18 

18 

17

18 

17 

16 

17 

17

17 

16 

16 

15 

16

Deo.

15 

*14 

14 

15 

15

14 

13 

14 

13 

14

15 

14 

13 

12

12

13 

13 

12 

11 

11

10 

9.5 

10 

10 

9.5

9 

9 

9.5

10 

11 

12

Jan.

13 

14 

13 

12 

11

10 

9.5

11

13

12 

«11 

10 

9.5 

9.5

10 

11 

11 

10 

9

9.5 

10 

10 

9.5 

10

11 

11 

12 

13 

12 

11

Feb.

10

11

12 

12 

11

10 

11 

10 

9.5 

9

8.5 

8 

7.5 

8 

8.5

8 

7.5 

8 

7.5 

7

7 

7.5 

8 

8.5 

9

9.5

10 

10 

11

Month

Dot 

lov

Deo

C

Jan 

Fet 

Mar 

Apr May 

Jim 

Jul AU«

Sep

I

alendar year

ater year 1939-4

Mar.

10 

10 

9.5 

10 

9.5

9 

8.5 

9 

8.5 

9

8.5 

8.5 

8 

8.5 

9

10 

11 

10 

9.5 

10

10 

9.5 

10 

10 

11

11 

12 

12 

11 

10 

11

Apr.

11 

10 

10 

10 

10

9.8 

8.6 

9.6 

10 

9.8

10 

9.6 

11 

12 

13

14 

13 

13 

14 

15

15 

14 

14 

14 

16

14 

14 

13 

13 

13

Secondfoot -days

549 

518 

376.5

_

340.5 

264.5 

303.5 

363.4 

2,258 

3,354 

956 

567 

447

10,297.4

May

13 

15 

17 

22 

23

23 

23 

25 

29 

34

41 

49 

71 

68 

66

a 80 

84 

a 82 

a78 

83

77 

69 

72 

88 

104

127 

141 

153 

159 

160 

182

Mn^HppTifl

20 

22 

15

_

14 

12 

12 

16 

182 

206 

61 

23 

20

206

June

200 

206 

187 

160 

159

133

121 

122 

112 

101

96 

108 

124 

136 

135

127 

122

114 

105 

98

92 

84 

76 

68 

62

62 

61 

62 

62 

59

Jily

61 

60 

56 

52 

49

43 

42 

41 

39 

40

42 

38 

33 

22 

22

28 

30 

26 

23

21

20 

18 

16 

15 

16

16 

15 

16 

19 

19 

18

HHn^Bnim

16 

14 

9

.

9

7 

8 

8.6 

13 

59 

15 

15 

14

7

Aug.

17 

16 

16 

16 

16

15 

15 

20 

23 

23

22 

22 

21 

20

20

19 

18 

18 

18 

19

22

18 

17 

17 

20

20 

17 

16

16 

15 

15

Hean

17.7 

17.3 

12.1

_

11.0 

9.12 

9.79 

12.1 

72.8 

112 

30.8 

18.3 

14.9

28.1

Sept.

15 

14 

14 

15 

15

14 

14 

14 

14 

14

14 

14 

14 

14 

15

15 

15 

15 

15 

16

15 

14 

14 

14 

14

15 

15 

18 

20 

18

Run-off in 

acre-feet

1,090 

1,030

747

_

675 

525 

602 

721 

4,480 

6,650 

1,900 

1,120 

887

20,430

 Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of recorded range of stage and records for 

Horae Creek near Daniel, Wyo. 

Kote.- Stage-discharge relation affected by Ice Dec. 1 to Apr. 3.

9-832 February 19S6

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolc sal Survey
110 GREEN RIVER BASIN 

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

Location.- Water-stage recorder, lat. 42°36', long. 110°28', in sec. 7, T. 30 N., R. 114 

W., 1 mile downstream from South Fork and 18 miles northwest of Big Piney.

Drainage area.- 34.3 square miles.

Records available.- July 1939 to September 1940.

Extremes.- Maximum discharge during period, 49 second-feet June 1 (gage height, 5.49 

feet); minimum discharge observed, 1.7 second-feet Jan. 12 (discharge measurement), 

but probably less during period of Ice effect.

Remarks.- Records good except those for period of ice effect, vtiich are fair. 

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, In second-feet, 1939-40 

1939

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Mov. Dec. Jan. Feb. Mar. Apr. May June July

_

-

-

-

-

_

-

_

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

40

42

41

39

Aug.

37

35

34

33

33

32

32

31

30

29

28

26

25

25

25

25

24

24

24

24

23

23

22

21

21

21

21

21

21

20

19

Sept.

18

18

17

17

16

16

16

16

16

16

14

16

15

15

15

14

14

13

13

14

14

13

13

13

14

14

13

13

12

12

-

9-238 September 1937

UNITED STATES DEPARTMENT OF THE INTERIOR 

(Jeolot al Surrey
GREEN RIVER BASIN 111

Discharge, In second-feet, of Middle Plney Creek below South Pork, near Big Plney, Wyo.

1939-40 Continued

Day

1

Z

5

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

12

14

13

13

12

13

12

12

12

10

10

10

10

10

10

10

10

10

9.0

9.0

9.0

9.5

8.5

8.5

7.7

7.7

8.0

8.0

8.0

8.0

Nov.

7.4

7.4

7.4

7.4

7.4

6.8

6.8

6.8

6.2

6.5

6.5

6.5

6.2

5.9

5.6

6

7.5

8

8.5

8.5

8.5

9

9.5

10

11

11

10

9.5

9

9

-

Dec.

<»)

» 5.0

Jan.

1

(*)

. 2.0

Pel}.

. 3.0

j

-

-

Har.

. 5.0

Apr.

6.5

7

7

6.8

6.2

6.2

6.5

6.2

6.5

6.8

6.2

7.1

6.8

.1

.4

.1

.4

.7

8.0

8.6

10

8.6

8.0

8.0

8.0

7.7

7.7

7.7

7.7

8.0

-

May

7.7

8.6

8.6

8.6

8.0

7.7

7.7

7.4

7.4

7.7

7.7

8.0

12

11

12

14

17

19

20

21

22

21

21

24

27

33

38

40

41

43

44

June

46

44

41

36

36

31

30

30

29

32

34

37

40

40

39

39

39

42

40

40

40

42

39

36

33

34

38

36

35

36

-

July

36

35

33

32

30

29

29

29

30

30

30

30

28

28

27

27

27

26

25

25

23

23

20

20

20

19

18

16

15

14

13

Aug.

13

12

12

11

10

10

10

9.8

9.8

9.2

9.8

8.6

9.2

9.2

8.0

7.7

7.7

8.0

8.6

9.2

9.2

9.2

8.6

9.8

10

9.2

9.2

8.6

8.6

8.0

8.0

Sept.

8.0

8.0

8.6

8.6

8.0

7.7

7.7

7.4

8.0

8.0

8.0

8.0

.7

.7

.4

.4

.7

.4

.4

8.0

7.4

6.8

6.8

6.8

6.8

6.5

6.8

7.7

8.6

7.4

-

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 16 to Apr.

Monthly discharge, In second-feet, 1939-40

Month

Hay. ......................................

Water year 1939-40 .....................

Secondfoot-days

809

155.0

62.0

155.0

220.6

4,226.8

Maximum

37

18

_

_

_

10

44

48

Minimum

19

_

_

_

_

6.2

29

-

Mean

26.1

5.0

2.0

3.0

5.0

7.35

9

VQ

11.5

Run-off in 

acre-feet

1,600

orrt

307

123

173

307

437

Crro

S.380
112 GREEN RIVER BASIN

Fontenelle Creek near Fontenelle, Wyo.

Location.- Water-stage recorder, lat. 42°06', long. 110°13', in sec. 3, T. £4 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 1940.

Extremes.- Maximum discharge during year, 66 second-feet May 19 (gage height, 1.38 feet); 

no flow June 27-30, Sept. 18-27.

1915-19, 1931-40: Maximum discharge observed, 922 second-feet Apr. 19, 1938 (gage 

height, 4.00 feet, site and datum then In use), from rating curve extended above 380 

second-feet; no flow Aug. 1-5, Aug. 23 to Sept. 15, 1934, June 27-30, Sept. 18-27, 

1940.

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

which are fair. Diversions above station for irrigation.

Cooperation.- Records collected In cooperation with Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

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.

23 

24 

24 

27 

25

23 

22 

22 

22 

22

22

23

23 

23

24 

24 

25 

24 

24

24 

24 

24 

24 

23

24 

24 

24 

24 

24 

23

Hcv.

23 

25 

24 

24 

25

25 

25 

24 

24 

21

20

20 

20 

20 

17

18 

18 

17 

16 

20

21 

£1

22

20 

19 

18 

18 

19

Dec.

19 

19 

20 

21 

20

18 

19

19 

19 

SO

21 

20 

18 

18 

18

20 

19 

18 

18 

17

17 

16 

15 

15 

15

14 

14 

15 

14 

16 

18

Jan.

20

- 23 

22

£1

£0 

20 

21

22 

22 

*21 

20 

19

19 

20 

20 

18 

17

18 

19 

18 

17 

18

20 

21 

22 

22 

21 

20

Feb.

19 

20 

21 

22 

20

21

21 

20 

18

17 

16 

15 

16 

17

16 

15 

17 

17 

16

16

16 

17 

18 

21

24 

26 

29

Month

Dot 

Hoi 

Dec

C

Jan 

Feb 

Mar 

Apr 

Ma, 

Jun 

Jul 

Aug 

Sep

VI

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

afcer year 1939-4

Mar.

2S 

24 

25 

26 

26

25 

*24

£5 

23 

25

24 

23 

23 

24 

26

28 

32 

30 

30 

31

33 

35 

39 

44

48 

49 

49 

44 

38 

39

Apr.

42 

41 

36 

32 

32

35 

38 

35 

35 

38

39 

35 

35 

39 

42

46 

46

41 

41

35 

15 

13 

12 

12

13

11 

11 

9.6 

7.5

Secondfoot -days

731 

627 

550

18,263.6

631 

556 

972 

909.1 

385.8 

171.5 

131.9 

65.1 

16.2

5,746.6

May

3.7 

4.0 

4.5 

4.5 

4.5

5.0 

3.1 

1.3 

1.0 

.7

.8 

.9 

1.0 

1.9 

1.3

1.3 

2.2 

6.5

48 

40

36 

41 

32

28

27 

27 

20 

3.4 

1.9 

1.3

Maximm

27 

25 

21

255

24 

29 

49 

46 

48 

24 

12 

9.5 

2.2

49

June

1.0 

1.3 

1.3 

1.3 

1.6

2.2

4.0 

24 

20 

16

16 

14 

13 

11 

8.0

6.5 

4.0 

3.4 

3.1 

3.1

2.8 

2.5 

2.2 

2.5 

3.1

1.6 

0 

0 

0

0

July

1.6 

4.0 

5.0 

5.0 

5.5

4.5 

3.1 

2.8 

2.5

2.5

2.5 

2.8 

3.1 

2.2

1.9

1.6

.8

a3.5 

a5

a9 

a!2 

11 

9.6 

a7.5

a6.5 

a5. 5 

a4 

a2.5 

al.5 

.7

Minimum

22 

16 

14

9.4

17 

15 

23 

7.5 

.7 

0 

.7 

.3 

0

0

Aug.

0.6 

.4 

.4 

a. 4 

a. 3

a2.5 

a5.5 

a9.5 

6.5

a5.5

a4.5 

a3.5 

a2.5 

al.5 

al.O

a. 8 

a. 6 

a. 4 

a. 4

a. 4

a. 6 

a. 8

.9 

.8 

1.3

2.5 

2.5 

1.6 

2.2 

2.5 

2.2

Mean

23.6 

20.9 

17.7

50.0

20.4 

19.2 

31.4 

30.3 

12.4 

5-72 

4.25 

2.10 

.54

15-7

Sept.

1.3 

1.6 

1.0 

1.3 

al.O

a. 8 

a. 6 

a. 4 

a. 2 

a. 4

a. 4 

a. 6 

.9

.8 

.7

.5

.5 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.4 

.6 

2.2

Run- off in 

acre-feet

1,450 

1,240 

1,090

36,210

1,250 

1,100 

1,930 

1,800 

765 

340 

262 

129 

32

11,390

 Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of recorded 

notes.

Kote.- Stage-discharge relation affected by Ice Nov. 16-18, Nov.

range of stage and observe 

21 to Dec. 10, Dec. 12 to

9-832 February 1936

UNITED STATES DEPAP^MENT OP THE INTERIOR 

Qeolog al Survey
GREEN RIVER BASIN 113

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 19 miles southeast 

of Big Sandy. Former gage at same general location but different datum.

Drainage area.- 94 square miles.

Records available.- July 1910 to August 1911 (published as Big Sandy Creek near Big 

Sandy, Wyo.), July 1939 to September'1940.

Extremes.- Maximum discharge during period, 322 second-feet May 12 (gage height, 4.91 

feet), from rating curve extended above 240 second-feet; minimum discharge observed, 

4.8 second-feet Jan. 4 (discharge measurement), but probably less during period of Ice 

effect.

191C-11, 1939-40: Maximum discharge recorded, 396 second-feet June 12, 1911 (gage 

height, 8.3 feet, datum then In use), from rating curve extended above 160 second-feet; 

minimum discharge, that of Jan. 4, 1940, but probably less during period of Ice effect.

Remarks.- Records excellent except those for period of Ice effect, which are poor. 

Cooperation.- Records collected In cooperation with Bureau of Reclamation.

Rating table, July 24, 1939, to Sept. 30, 194O, except period of ice effect (gage height, in 

feet, and discharge, in second-feet)

2.7

2.8

2.9

3.0

6.0

8.5

11.5

3.2

3.3

3.4

3.7

3 9 

4^3 

4.7 

5.0

106

180

270

345

Discharge, in second-feet, 1939-40 

1939

Day

1

2

5

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

89

SO

Si

Oct. Hov. Dec. Jan. Feb. Mar. Agr. May June July

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

34

30

30

26 

2S

30

30

Aug.

28

26

24

22

21

20

20

20

19

18

18

17

16

15

14

13

14

12

13

13

12

12

11

11

11

11

11

11 

11

11

11

Sept.

11

9.7

9.4

9.4

9.4

9.7

15

15

14

12

12

12

15

20

19

18

18

17

16

15

14

14

14

14

16

20

17

14 

13

13
114 GREEN RIVER BASIN

Discharge, in second-feet, of Big Sandy River at Leckie ranch, near Big Sandy» Wyo., 1939-40 Contd.

1939-40

Day

1

2

S

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

SO

31

Oct.

14

17

22

22

20

19

19

19

IB

17

16

16

16

16

16

15

15

15

14

14

14

14

13

13

13

15

14

13

15

16

15

HOT.

15

15

14

14

14

13

14

12

12

11

10

10

10

10

9

9.5

9.5

9.5

9

9.5

10

9

9

9

8.5

8

7.5

7.5

7

7

-

Dee.

N

(«)

> 6

Jan.

(*)

 4

Feb.

' 5

-

-

Mar.

N

> 8

(*)

Apr.

14

13

12

13

13

13

14

15

15

14

13

13

20

26

33

26

22

30

36

37

33

30

26

34

42

51

49

45

48

43

Mar

46

71

111

158

142

124

110

135

170

220

268

292

275

248

237

248

206

200

191

198

158

147

164

191

198

200

242

248

235

228

224

June

215

204

182

156

178

193

172

153

133

124

119

128

138

146

137

129

120

111

104

101

95

87

82

75

69

64

60

54

50

49

July

79

110

193

140

110

90

75

74

80

93

115

104

77

60

48

43

42

37

32

29

25

22

20

19

17

17

17

17

17

15

14

Aug.

14

15

14

13

13

12

12

12

12

12

11

11

10

10

10

9.1

8.5

8.2

7.8

8.2

9.1

10

10

10

12

15

18

17

15

14

13

Sept.

13

12

11

12

14

14

14

13

13

14

16

17

19

18

17

16

15

15

16

17

20

20

18

17

17

17

16

23

48

69

-

 Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Hiov. 9 to Apr. 7.

Monthly discharge, in second-feet, 1939-40

Month Secondfoot-days

240

486

425.6

495

186

_

14,574.4

Maximum

34

28

20

_

_

292

215

TO

292

Minimum

26

11

9.4

_

_

-

Mean

31.0

15.7

14.2

-

6

_

190

3T.3

Run-off in 

acre-feet

476

964

844

369

_

28,900
GREEN RIVER BASIN 115

Little Sandy Creek near Elkhorn, Wyo.

Location.- Water-stage recorder, lat. 42°32' 

104 W., 7 miles northeast of Elkhorn.

long. 109°1S', In sec. 35, T. 30 N. , R.

Drainage area.- 20.9 square miles.

Records available.- July 1939 to September 1940.

Extremes.- Maximum discharge during period, 98 second-feet May 31 (gage height, 3.13 

reet); minimum discharge, 0.9 second-foot Jan. 4 (discharge measure-Rent ) , but less 

during period of Ice effect.

Remarks . - Records good except those for period of Ice effect, which are poor. Two 

small diversions above station.

Cooperation.- Records collected In cooperation with Bureau of Reclamation.

Discharge, in second-feet, 1939-40 

1939

D«y

1

2

S

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29 

SO 

SI

Oct. Nov. Dee. Jan. Feb. Mar. Apr. Hay June July

_

-

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

-

_

_

_

_

4.7

6.0

7.0

6.8 

8.8 

7.7 

7.2

Aug.

6.8

6.5

6.2

6.2

5.8

5.S

6.3

/.2

7.0

6.8

7.0

6.8

6.6

6.6

6.5

6.5

6.3

6.3

6.3

6,2

5.0

5.2

4.2

3.9

4.2

3.8

3.0

3.5 

3.6 

8.6 

12

Sept.

11

11

9.S

9.8

8.4

7.5

7.9

7.3

6.8

6.3

6.0

5.8

6.2

5.8

5.5

5.2

4.7

4.1

3.8

3.2

3.2

2.8

2.8

3.2

2.9

3.0

2.8

2.5 

2.5 

2.5

9-238 September 1937

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolog al Surrey
GREEN RIVER BASIN

Discharge, In second-feet, of Little Sandy Creek near Elkhorn, Wyo., 1939-40 Continued

1939-40

D«y

1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

25

24

25

26

27

28

29

30

31

Oct.

3.2

3.5

3.6

3.6

3.5

3.0

3.2

3.3

3.2

2.8

2.5

2.5

2.3

2.3

2.2

2.2

2.2

2.1

2.0

2.0

1.9

1.8

1.8

1.5

1.8

2.0

1.6

2.8

2.9

3.3

D.9

Nov.

2.8

2.6

2.3

2.6

3.0

2.9

2.9

3.0

2.1

2.6

2.9

3.3

2.9

3.5

1.8

2.1

2.5

2.7

2.8

2.9

2.8

2.9

2.8

2.8

2.8

2.8

2.8

2.6

2.5

2.4

-

Dec.

.

(«)

. 1.8

Jan.

.

(*)

 0.8

Pel).

 1.6

j

-

~

Mar.

. 4.0

Apr.

7.8

7.6

7.4

7.2

8.0

9.6

9.4

8.0

*8.3

8.2

8.2

8.4

9.0

11

13

12

11

12

13

11

11

12

12

9.8

10

11

10

11

9.8

9.3

-

May

9.8

12

20

30

22

17

15

18

22

24

25

27

25

23

31

58

63

58

53

57

49

40

37

46

63

72

88

92

86

87

89

June

88

86

76

61

62

56

45

38

30

27

25

29

40

52

54

50

44

39

35

33

30

27

23

20

17

16

14

12

10

9.6

-

July

12

13

20

22

18

15

13

11

9.6

8.6

8.1

7.7

7.0

6.3

6.2

6.2

6.0

5.0

4.9

4.4

3.8

5.5

6.2

6.2

6.5

7.3

7.9

8.1

8.8

8.6

7.2

Aug.

6.8

6.8

6.8

6.6

6.6

8.4

8.4

8.1

7.9

7.7

7.3

7.0

6.8

6.5

6.2

5.7

5.2

4.9

4.6

4.6

3.9

3.5

2.8

2.6

2.8

3.2

3.2

2.8

2.6

2.5

2.2

Sept.

1.9

1.9

l.S

1.9

2.5

2.0

2.0

2.0

2.1

2.5

2.5

2.6

3.2

3.5

3.3

3.2

3.0

2.9

3.2

3.2

3.5

3.3

3.2

3.2

3.2

3.0

2.9

4.2

6.0

5.8

-

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 10, JTov 16 to Apr. 18.

Monthly discharge, In second-feet, 1939-4U

Month

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

Water year 1939-40 .....................

Secondfoot-days

48.2 

186.7 

164.3

-

79.5 

81.4 

55.8

_ _

24.8 

46.4 

124.0 

296.8 

1,358.8 

1,148.6 

280.1 

165.0 

89.3

3,750.5

Maximum

'5.8

12 

11

-

3.6

3.5

_

13 

92 

88 

22 

8.4 

6.0

92

Minimum

4.7 

3'.0 

2.5

-

1.5 

1.8

_

7.2 

9.8 

9.6 

3.8 

2.2 

1.6

-

Mean

6.89 

6.02 

5.4S

-

2.56 

2.71 

1.8

_

.8 

1.6 

4.0 

9.89 

43. S 

38.3 

9.04 

5.32 

2.98

10.2

Run-off In 

acre-feet

96 

370 

326

-

158 

161

111

-

49 

92 

246 

589 

2,700 

2,280 

556 

327 

177

7,450
GRKEN RIVER BASIN 117

Blacks Fork near Mlllburne, 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, 4fe miles north of Utah-Wyoming 

State line, and 15 miles southwest of Mlllburne.

Drainage area.- 156 square miles.

Records available.- July 1939 to September 1940.

Extremes.- Maximum discharge during year, 1,010 second-feet May 15 (gage height, 2.82 

feet), from rating curve extended above 460 second-feet; minimum, 17 second-feet Jan. 

24 (discharge measurement), but probably less during period or Ice effect.

1939-40: Maximum discharge, that of May 15, 1940; minimum, that of Jan. 24, 1940, 

but probably less during period of Ice effect.

Remarks.- Records excellent except those for period of Ice effect, wnlch are fair. 

Cooperation.- Records collected In cooperation with Bureau of Reclamation.

Rating tables, water year 1939-40, except period of ice effect (gage helglt, in feet, and 

discharge, in second-feet)

Oct. 1 to Dec. 24

0.2 27

.3 37

.4 50

.5 65

Har. 19 to Sept. 30

0.1 21 0.6 90

.2 28 1.3 340

.4 52 2.4 818

.5 68

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

52

56

54

59

56

59

56

52

56

46

49

47

47

46

46

45

44

45

38

41

41

40

40

41

37

38

36

35

42

34

40

HOT.

37

36

35

36

35

33

31

31

33

 24

23

23

25

26

27

24

22

21

22

23

24

25

27

27

28

29

31

28

25

25

-

Dec.

,

21

'

Jan.

20

("~ )

Feb.

> 22

_

-

Kontn

Karen.....................................

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

fcy......... ..............................

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

Water year 1939-4C

Mar.

27

30

30

33

30

26

27

30

33

32

29

34

32

30

30

27

26

30

24

24

24

24

25

26

28

28

27

28

27

25

26

Apr.

26

27

26

27

25

26

27

26

25

26

27

28

30

36

40

38

35

45

58

81

97

114

144

ISO

212

212

190

158

131

100

-

Seoondfoot-days

1,420

836

651

-

620

638

872

2,219

17,125

8 109

2^042

1,056

2,018

37,606

Hay

107

165

266

336

321

317

364

437

522

618

721

767

772

726

777

809

758

685

645

610

610

57Q

596

601

574

658

658

583

522

504

526

M^^nnmi

59

37

-

_

34

212

809

513

151

51

162

809

June

513

487

445

392

384

325

295

344

284

266

280

291

298

310

291

277

266

252

234

230

22?

21E

194

176

162

151

141

131

117

138

-

July

151

127

110

97

90

83

79

72

66

66

65

63

62

57

57

66

72

63

65

55

50

48

46

44

42

41

40

40

40

41

42

Minimum

34

21

-

_

24

25

107

117

40

27

29

-

Aug.

36

35

35

33

33

34

35

34

32

33

29

28

27

27

28

30

30

29

30

36

36

36

39

40

47

51

42

36

33

32

30

Kean

45.6

27.9

21

-

20

22

28.1

74.0

552

270

6&,9

34.1

67.3

103

Sept.

29

30

36

48

58

42

40

42

41

45

40

41

47

47

46

41

42

48

62

114

110

93

86

79

79

86

72

162

162

148

-

Run-off in 

acre-feet

2,820

1,660

1,290

-

1,230

1,270

1,730

4,400

33,970

16,080

4,050

2,090

4,000

74,590

 Winter discharge measurement made on this day.

Bote.- Stage-discharge relation affected by ice Nov. 10 to Mar. 18.

9-232 February 1936

TOTTED STATES DEPATMENT OF THE IHTERIOR 

Oeolot. .al Survey
118 GREEN RIVER BASIN

Blacks Fork near Urie, Wyo.

Location.- Water-stage recorder, lat. 41°21', long. 110°20', in sec. 24, T. 16 N., R. 115 

W., Smiles downstream from Quartz Creek and 2i miles north of Urie. Prior to Apr. 

12, 1939, recorder at site 500 feet upstream.

Drainage area.- 261 square miles.

Records available.- August 1913 to September 1924, October 1937 to September 1940.

Extremes.- 1938-39: Maximum discharge during year, 159 second-feet my 12 (gage height, 

3.04 feet, site and datum then in use); minimum daily, 0.2 second-foot Sept. 2, Z.

1939-40: Maximum discharge during year, 452 second-feet May 16 (gage height, 4.22 

feet); minimum daily, 0.4 second-foot July 27.

1913-24, 1937-40: Maximum discharge, 2,600 second-feet June 20, 1917 (gage height, 

4.72 feet, site and datum then in use); minimum daily, that of Sept. 2, 3, 1939.

Remarks.- Records fair except those for June 1 to Sept. 30, 1939, which are poor. Dlversions above station for irrigation.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, In second-feet, 1938-40 

1938-39

Day

1

2

S

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

SI

Oct.

5.9

5.5

5.1

5.5

6.6

7.0

10

10

10

11

10

10

10

9.5

10

22

28

28

24

18

21

20

17

14

14

14

13

13

13

13

13

Nov.

12

14

13

14

18

14

12

13

16

14

13

12

13

14

13

12

12

11

13

17

16

13

11

12

13

14

13

14

15

16

-

Dec.

.

(»)

. 20

Jan.

»

19

Feb.

18

;

_

-

Mar.

(»)

75

Apr.

58

59

62

72

53

47

46

41

36

37

35

35

34

32

26

23

22

17

16

8.8

9.7

31

107

63

35

20

17

20

65

82

May

a90

a98

a 86

a74

94

84

39

29

27

37

60

124

54

32

37

65

66

48

50

51

48

37

34

42

60

40

31

23

21

36

64

June

82

46

33

26

25

20

20

16

18

18

16

13

13

14

14

16

16

16

14

12

9 2

7 5

5 5

5 5

5 5

6 6

5 1

4 8

4 0

3 6

July

3.6

2.9

a2.8

a2.8

a2.7

3.6

3.6

3.3

3.6

3.6

4.0

4.4

4.4

5.1

5.1

4.8

4.4

3.6

2.9

2.2

1.9

2.2

1.6

.9

1.2

1.6

1.4

1.4

4.0

3.6

5.5

Aug.

5.1

3.6

2.4

2.2

2 .9

3.3

2.9

2.2

1.4

1.4

1.9

2.4

2.6

2.9

3.3

2.9

2.2

1.6

1.6

1.9

1.2

1.2

1.2

.9

.9

.9

1.2

.9

1.4

.9

.9

Sept.

0.3

.2

.2

.3

.4

.6

1.4

1.6

1.2

.6

.6

.9

2.2

1.9

1.9

1.6

1.4

1.4

1.4

1.2

1.6

1.9

£ 9

4!4

7.5

9.2

5.9

6.6

7.0

5.5

 Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station near Lyram.

Rote.- Stage-discharge relation affected by Ice Hov. 8 to Apr. 1.

9-238 September 1937

UNITED STATES DEPARTMENT OF TEE INTERIOR 

0«olog il Survey
GREEN RIVER BASIN 1:9

Discharge, in second-feet, of Blacks Pork near [Trie, Wyo., 1938-40--Continued 

1939-40

D«y Apr. May Jtly Aug. Sept.

4.8 

4.8 

5.1 

5.1 

4.0

4.0 

2.9 

3.3 

3.6 

2.9

3.3

3.6 

4.0

4.8 

5.1 

5.5 

5.5

5.9 

6.2 

6.6 

6.6 

6.2

6.2 

5.9 

6,2 

6.2

7.5 

7.9 

8.4

8.8 

8.8 

8.8 

7.2

«4.4 

4.8 

4.0 

4.4 

4.0

5.1 

4.4 

4.8 

4.0 

4.4

4.8 

5.9 

6.6 

6.2 

5.9

6.2 

7.0 

6.6 

7.9 

6.6

14

12

12

13

15

14

12

12

9.7

7.5 

7.0 

6.2

5.9 

6.2 

6.6 

7.5 

9.2

11

7.5

6.6

11

19

11

9.2

11

18

45

180

271

281

234

310

279

194

137

47

203

101

61

28

20

14

14

16

12

10

7.9

7.9

7.0

5.9 

4.4 

3.6 

4.0

4.8

5.9 

5.9 

5.9

2.2

1.9 

1.9 

1.6 

1.4

1.2

1.2

.6

1.6 

1.9 

1.9 

1.9

1.6

1.6

1.6 

1.2

1.2

0.9 

.9 

.9

.9

.6 

1.2 

1.4 

1.9 

2.4

1.2

1.8

.6

.6

1.4 

1.6 

1.9 

1.6 

1.9

1.2 

1.2 

1.2 

1.2 

1.2

.6 

1.2 

1.2

1.2

a.9 

a. 9 

a.9 

a.9 

2.9

3.3 

2.6 

2.6 

2.9 

3.6

3.6

4.0

6.2

10

9.2

 Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for station near Lyman.

Hote.- Stage-discharge relation affected by ice Nov. 10 to Mar. 2.

Monthly discharge, in second-feet, 1938-40

Month Secondfoot-days Run-off in 

acre-feet

October 1938 ............................. 411.1

November.................................. 407

December.................................. 620

Calendar year 1938 ..................... 20,190.3

January 1939 ............................. 589

February.................................. 504

March..................................... 2,325

April..................................... 1,209.5

May....................................... 1,681

June...................................... 505.3

July...................................... 9

August.................................... 62.3

September................................. 73.8

Water year 1938-39 ..................... 8,486.7

October 1939 ............................. 156.6

November.................................. 191.4

December.................................. 186

Calendar year 1939 ..................... 7,582.6

January 1940 ............................. 155

February.................................. 217.5

March..................................... 759

April..................................... 342.0

Hay....................................... 2,749.3

June...................................... 384.5

July...................................... 59.8

August.................................... 32.6

September................................. 74.0

Water year 1939-40 ..................... 5,307.7

107

124

82

5.5

5.1

9.2

124

7.0 

8.8

45

26

310

20

5.9

2.4

10

310

5.1

11

8.8

21

3.6

.9

.9

.2

.2

2.9

4.0

17

5.9

6.6

3.6

.4

.6

.6

13.3

13.6

20

55.3

19

18

75

40.3

54.2

16.8

3.18

2.01

2.46

23.3

5.05

6.38

6.0

5.0

7.5

24.5

11.4

88.7

12.8

1.93

1.05

2.47

14.5

815

807

1,250

40,040

1,170

1,000

4,610

2,400

3,330

1,000

196

124

146

16,830

311

380

369

15,040

307

431

1,510

678

5,450

763

119

65

147

10,550
120 GREEN RIVER BASIN

Blacks Fork near Lyman, Wyo.

Location.- Water-stage recorder, lat. 41°27 f , long. 110°10', In sec. 21, T. 17 N., R. 113 

W., 4 miles downstream from Cottonwood Creek and 12 miles northeast of Lym£n.

Drainage area.- 821 square miles.

Records available.- October 1937 to September 1940.

Extremes.- Maximum discharge during year, 1,140 second-feet May 27 (gage height, 4.39 

feet); no flow Aug. 8, 15-22.

1937-40: Maximum discharge, 1,440 second-feet May 17, 1938 (gage height, 4.75 

feet); no flow Aug. 8, 15-22, 1940.

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

Cooperation.- Records collected In cooperation with Bureau of Reclamation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

8

3

4

S

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

28

23

24

25

26

27

28

29

SO

31

Oct.

4.0

4.5

5.8

5.8

5.6

5.6

5.3

6.5

7.7

9.7

7.4

7.0

7.2

7.2

7.2

7.0

7.0

7.7

7.2

6.7

6.7

6.7

7.4

7.2

7-9

7.9

7.7

7.4

7.9

7.9

8.4

HOT.

8.4

9.3

9.3

9.3

8.8

9.3

8.8

8.8

8.8

11

12

11

11

10

14

11

7.0

7.2

7.7

7.9

8.4

10

9.7

11

11

12

14

8.8

9.5

8.2

"

Dec.

I*)

9

Jan.

 8.5

(*)

Feb.

11

t

-

Month

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

Calendar year 1939. .....................

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

Kay.. ...... ......... ......................

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

Water year 1939-4C)......................

liar.

45

48

54

62

*56

45

49

54

62

56

54

52

52

54

70

135

119

92

77

76

72

72

68

70

71

72

78

95

98

80

70

Apr.

63

68

74

65

51

57

63

44

37

37

41

36

28

27

27

31

28

21

18

18

16

16

18

21

28

SO

32

42

43

44

Seoondfoot-days

215.2

293.2

279

23,884.3

265.5

319

2,158

1,124

l)o72.9 170 8

29!?

584.3

14,780.6

May

38

29

21

20

28

41

28

19

20

51

238

490

570

595

590

585

645

550

365

171

112

111

88

84

90

144

860

635

470

345

238

Mfryiflpnfl

9.7

14

790

I

135 

74

860

168

13

2*6

128

860

June

168

139

114

101

92

89

57

33

26

24

19

16

14

13

12

11

11

11

10

11

12

11

9.S

8.8

8.8

8.4

8.2

8 »2

8.2

19

-

July

12

13

10

9.3

8.2

7.2

6.5

6.0

5.6

5.3

5.1

5.3

5.1

4.9

4.9

5.6

5.8

6.0

5.8

5.6

5.3

4.9

4.5

4.2

3.3

2.9

2.4

2.0

1.4

1.0

1.7

Hiniimm

4.0

7.0

.6

I

45 

16

198 «2

1.0 

0

1.0

0

J-ta;.

2.2

2.2

1.8

1.4

.8

.4

.2

0

.2

1.6

1.5

1.1

.9

.4

0

0

0

0

0

0

0

0

1.2

1.2

2.0

2.5

2.6

1.6

1.4

1.3

1.2

Bean

6.9't

9.77

9

66.4

11 '

69.6 

37.5

267 

35.8

5.51 

.96

19.5

40.4

Sept.

1.1

1.0

9.3

19

7.4

3.3

2.1

2.0

2.6

2.8

2.0

2.1

2.3

4.7

3.7

g O

1.7

1.6

1.6

128

83

10

7-0

5.8

7-9

7.4

6-7

74

96

86

Run-off in 

acre-feet

427

coo QQ&

553

47,360

523

653

4,280

2, 250

16,410

2,130 

359

59

1,160

29,330

 "Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Nov. 29 to Mar. 16.

'-282 February 1956

UNITED STATES DEPATIENT OF THB IHTERIOR 

Geolof, al Surrey
GREEN RIVER BASIN 121

East Fork of Smith Fork near Robertson, Wyo.

Location.- Water-stage recorder, lat. 41°03', long. 110°24', on west line of sec. 4, T. 

12 N., R. 115 W., 1 mile upstream from Gilbert Creek and 11 miles southeast of Robertson.

Drainage area.- 59.0 square miles.

Records available.- July 1939 to September 1940.

Extremes.- Maximum discharge during period, 364 second-feet May 13 (gage height, 2.50 

feet), from rating curve extended above 130 second-feet; minimum, 3.0 second-feet Jan. 

23 (discharge measurement), but may have been less during period of ice effect.

Remarks.- Records good except those for period of ice effect, which are fair. No diversions 

above station.

Cooperation.- Records collected in cooperation with Bureau of Reclamation.

Discharge, In second-feet, 1939-40 

1939

D«y

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

SO

31

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July

_

-

-

-

-

_

-

-

-

-

_

-

-

_

-

_

33

32

27

22

21

20

19

18

17

18

18

19

23

27

23

Aug.

21

19

19

18

18

17

21

18

16

15

14

14

13

13

16

14

13

11

11

10

11

11

10

9.7

11

10

11

12

16

15

13

Sept.

11

9.4

8.2

8.2

9.7

12

18

18

15

14

15

14

30

42

34

30

26

24

22

20

19

20

20

19

22

22

19

21

21

18

9-238 September 1937

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolc>gloal Surrey
122 GREEN RIVER BASIN

Discnarge, in second-feet, of East Pork of Smith Pork near Robertson, Wyo1939-40

1939-40--Contimied

Day

1

2

5

4

5

6

7

8

9

10

11

12

15

14

15

16

17,

18

19

20

21

22

25

24

25

26

27

28

29

30

51

Oct.

18

19

19

21

20

20

19

19

19

17

17

17

17

16

16

15

15

15

14

14

13

13

13

13

13

12

13

14

13

13

12

Nov.

13

12

12

12

11

11

11

11

9.7

7.0

-53.4

3.6

3.3

3.4

3.3

3.7

3.4

3.6

3.6

3.6

3.7

4.0

4.1

4.1

4.1

4.2

4.3

4.2

3.8

3.7

Dec.

 4.0

'

Jan.

> 3.7

(*)

Feb.

. 4.5

,

_

-

Mar.

. 5.4

Apr.

5.2

5.4

5.4

5.2

5.0

5.0

5.4

5.2

5.2

5.0

5.0

*5.3

5.4

6.4

8.2

9.4

10

11

15

21

Z>Q

36

42

43

58

72

54

42

36

30

-

May

29

39

63

83

85

85

94

114

170

227

265

298

301

244

268

295

259

205

183

165

157

139

152

157

141

167

170

157

139

122

126

June

119

122

112

96

96

78

68

71

61

56

56

57

57

58

61

57

53

51

48

47

44

42

40

38

41

38

34

33

28

27

-

July

34

33

27

24

23

20

20

19

17

16

15

15

15

13

13

17

18

17

18

15

13

12

11

10

9.1

8.8

8.2

7.6

7.3

7.9

7.9

Aug.

7.0

6.6

6.4

6.6

6.2

6.4

7.0

7.3

6.4

6.4

6.0

4.8

4.6

4.7

4.8

5.0

5.2

5.0

5.2

6.0

6.4

6.6

7.9

9.7

10

12

10

7.9

6.4

6.0

5.2

Sept.

5.4

5.2

6.6

11

15

13

11

11

11

11

11

11

12

13

13

12

12

12

16

21

28

24

22

22

21

22

20

39

46

42

~

^Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by Ice HOT. 10 to Apr. 18.

Monthly discharge, In second-feet, 1939-40

Month

The period. ..............................

Calendar year .....................

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

Water year 1939-40 .....................

Secondfoot-days

337

-

-

X3.4 V

205 7

519.2

9,906.8

Maximum

33

21

-

13

-

_

_

72

46

301

Minimum

8 2

-

12

3.5

-

_

_

5.0

5.2

-

Mean

22 5

-

15.8

6.16

4.0

-

4.5

5.4

19.7

17.3

27.1

Run-off in 

acre-feet

2,690

970

367

246

-

259

352

1,170

10,110

1,050

19,640
GREEN RIVER BASIN 123 

West Fork of Smith Forte near Robertson, Wyo.

Location.- Water-stage recorder, lat. 41°01', long. 110°29', in sec. 15, T. 12 N., R., 116 

W., three-quarters of a mile downstream from Arohie Creek and 13 miles southwest of 

Robertson.

Drainage area.- 37.2 square miles.

Records available.- July 1939 to September 1940.

Extremes.- Maximum discharge during period, 96 second-feet Hay 11 (gage height, 2.37 feet), 

from rating curve extended above 35 second-feet; minimum daily, 0.2 second-foot Aug. 13,

Remarks.- Records good except those for periods of ice effect, which are fair. No diversions above station.

Cooperation.- "Records collected in cooperation with Bureau of Reclamation.

Discharge, In second-feet, 1939-40

D«y

1

2

S

4

5

6

7

S

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Pel). Mar. Apr. Hay June

_

Jul7

_

_

_

_

-

_

_

_

_

-

_

_

r.7

3.7

r.s

Z.2

3.0

f .6

f .2

F.I

1*7

1.9

1.7

1.5

1.5

F.9 r.7

f .6

5.4 E-.8

4.7

Aug.

3.3

2.5

2.2

2.1

2.1

2.1

2.3

1.7

1.4

1.4

1.3

1.3

1.3

1.3

1.1

1.0

.9

.7

.7

.7

.8

.7

.7

.9

1.3

1.2

1.3

1.6

3.5

2.3

1.9

Sept.

1.3

1.1

1.0

1.3

1.6

3.3

6.2

3.7

2.3

2.1

2.2

2.1

2.2

2.5

2.1

1.9

1.7

1.6

1.4

1.4

1.4

1.9

2.1

2.0

2.5

2.5

2.0

4.1

3.3

2.0

400453 0-41-9

81JIT9D'STATES DfiPAPTMENT 

Geolog al ~
124 GREEN RIVER BASIN

Discharge, In second-feet, of West Pork of Smith Pork near Robertson, Wyo., 1939-4 >-Contimied

1939-40

Omy

1

2

S

4

S

6

7

8

9

10

11

12

15

14

15

16

17

18

19

80

21

22

23

24

26

26

27

28

29

SO

31

Oct.

2.2

2.5

2.5

2.7

2.3

2.7

2.2

2.3

3.2

2.5

2.5

2.5

2.2

2.0

1.9

1.9

1.5

1.5

1.4

1.4

1.5

1.4

1.4

1.4

1.5

2.1

1.6

1.5

2.1

1.9

2.1

HOT.

2.2

2.1

1.7

2.1

2.1

2.1

2.1

2.1

2.0

1.5

bl.2

bl.3

bl.2

bl.2

bl.2

1.3

1.0

.9

.9

1.0

1.0

bl.o

bl.5

bl.3

bl.l

1.0

.9

1.0

1.0

.8

-

Dee. Jan. Feb. Mar. Apr.

_

-

_

_

-

_

_

_

-

-

_

_

*b3.o

W.4

b4.0

b5.6

bV.O

bS.O

b!5

*b28

b27

*b26

29

29

31

34

29

28

22

20

-

May

22

30

44

52

46

42

47

58

70

73

76

77

76

69

69

65

68

53

49

47

46

45

44

44

40

46

50

44

40

37

36

June

34

32

29

28

27

26

24

26

23

20

20

19

18

17

16

14

13

12

11

10

9.2

8.4

7.6

6.5

5.0

4.3

4.0

3.8

3.5

5.0

July

7.3

5.4

4.0

3.3

2.6

2.2

2.1

1.9

1.5

1.5

1.7

1.9

1.5

1.3

1.4

2.9

3.5

3.2

2.9

1.7

1.2

1.0

1.0

1.0

.6

.5

.5

.5

.5

.7

.8

Aug.

0.6

.5

.4

.4

.4

.4

.5

.4

.4

.4

.3

.3

.2

.3

.3

.3

.3

.4

.4

.5

.6

.7

1.0

1.3

2.1

2.2

1.1

.8

.6

.5

.5

Sept.

0.5

.5

1.0

2.0

1.9

1.1

.9

.9

.9

1.0

1.0

1.3

1.3

1.1

1.1

.9

.9

1.0

1.3

3.0

2.5

1.7

1.3

1.1

1.4

2.1

1.4

4.0

4.7

4.1

*Winter discharge measurement made on this 

b Stage-discharge relation affected by lee.

Monthly discharge. In second-feet, 1939-40

Month

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

Secondfoot-da ya

-

ftO A

il ft

47.9

-

Maximum

_

2

n

_

4.7

-

Minimum

_

_

.5

-

Mean

_

a «!

_

1.60

-

Run-off In 

acre-feet

344

TO A

_

95

-
GREEK RIVER BASIN 125

Henrys Fork at Llnwood, Utah

Location.- Water-stage recorder, lat. 41°00', long. 109°39', In sec. £3, T. 12 N., R. 109 

W., 200 feet north of Utah-Wyoming State line, at Llnwood. Datum cf gage Is 5,992.57 

feet above mean sea level (general adjustment of 1912) .

Drainage area.- 531 square miles.

Records available.- October 1928 to September 1940.

Average discharge.- 12 years, 71.0 second-feet.

Extremes.- Maximum discharge during year, 396 second-feet May 27; maximum gage height, 4.30 

feet (Ice jam) Dec. 22; no flow July 13 to Aug. 26, Aug. 30 to Sept. 26.

1928-40: 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 19J"4, 1935, 1939, and 

1940.

Remarks.- Records good except those for period of Ice effect, which are fair. 

above station for irrigation.

Diversions

Discharge, In second-feet, water year October 1939 to Septembe- 1940

Day

1

2

3

4

5

6

7

8

9

10

11

18

IS

14

IS

16

17

18

19

20

8122

23

24

25

26

27

28

29

SO

31

Oct.

14

14

19

27

32

32

31

34

46

53

48

46

45

35

31

38

42

40

42

42

40

40

40

40

40

42

42

42

45

46

43

 or.

45

45

43

42

40

42

40

38

40

38

32

35

40

40

40

35

30

32

34

36

38

40

44

44

42

40

48

46

46

46

-

Dec.

48

52

52

50

55

59

61

62

53

48

46

38

36

36

40

46

52

46

44

40

38

36

36

36

34

28

30

26

26

32

34

Jan.

40

40

40

40

38

34

32

30

32

34

34

34

*32

34

32

28

32

28

24

24

28

24

26

28

30

32

34

36

36

36

34

Feb.

34

34

34

34

34

34

34

34

32

34

28

*26

28

30

30

28

26

26

28

30

28

30

32

40

40

44

50

56

58

_

-

Month

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

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

toy.......................................

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

Alter year 1939-4ta. .............. ......

Mar.

56

54

52

52

48

34

32

30

34

35

28

21

20

27

34

42

46

48

50

50

45

57

61

97

101

88

80

66

57

53

55

Apr.

62

62

57

55

53

61

57

50

48

48

48

42

37

38

38

45

50

45

40

40

42

42

43

53

76

74

68

70

64

57

-

Seoondfoot-days

1,171

1,201

1,320

20,868.9

1,006

996

1,553

2.^565

3,754

271.5

g Q

2 *8

112

12,955.1

May

55

48

43

43

57

72

64

61

62

62

134

213

231

223

186

221

257

213

162

141

126

115

95

90

61

130

299

106

61

64

59

Ito^Hnmm

53

48

62

316

40

58

101

76

299

45

.3

48*1*9

299

Jane

45

38

35

25

19

19

19

16

13

8.5

14

5.0

3.8

2.9

1.8

1.2

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

-

July

0.3

.3

.3

.3

.3

.3

 2

.2

.2

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.9

.8

.1

0

0

m«<imim Mean

14 37.8

30 40.0

26 42.6

0 57.2

24 3g.5

26 34.3

20 50.1

37 52.2

43 121

.1 9.05

0 .09

0 .09

0 3.73

0 35.4

Sept.

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

19

26

19

48

-

Run-off in 

acre-feet

2,320

2,380

2,620

41,380

2,000

1,980

3,080

3,100

7,450

539

5.6

5.6

222

25,700

Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Hov. 18-30, Dec. 13 to Mar.

9-232 February 19S6

UNITED STATES DEPATMEHT OF THE INTERIOR 

Qeolofc. ,al Surrey
126 GREEN RIVER BASIN

Burnt Fork at Burntfork, Wyo.

Location.- Chain gage., lat. 41°02', long. 110°01', in sec. 11, T. 12 N., R. 112 W., a 

quarter of a mile west of Burntfork and 1 mile upstream from mouth. Datum of gage Is 

7,098.70 feet above mean sea level (general adjustment of 1912).

Drainage area.- 73 square miles.

Records available.- July 1929 to September 1940.

Extremes.- Maximum discharge observed during year, 21 second-feet May 4 (gage height, 2.40 

feet); minimum daily, 0.2 second-foot Aug. 9-15, Sept. 15-20, 23, 24.

1929-40: Maximum discharge, 4,360 second-feet Aug. 2, 1936 (gage height, 9.60 feet, 

from floodmarks), by slope-area method; no flow June 27, 30, July 2, 5-7, 17, 18, 25, 

1934.

Remarks.- Records good except those for periods of Ice effect, which are fair. Gage read 

twice dally. Diversions above station for irrigation.

Rating tables, water year 1939-40, except periods of ice effect (gage height, In feet, and

discharge, In second-feet) 

(Shifting-control method used Bar. 1 to Apr- 6, Apr. 13-19, June 28 to Aug. 6, Sept. 28-30)

Oct. 1 to Jan. 31 Feb. 1 to Sept. 30

1.6 2.7 1.8 5.S 1-2 0 1-7 3.4 

1.7 4.0 1.9 7.8 1.3 .3 1.9 7 

1.4 .8 2.1 11 

1.5 1.4 2.3 17 

1.6 2.2

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

84 

25

26 

27 

28 

29 

30 

31

Oct.

5.4 

5.8 

5.6 

5.8 

6.0

5.8

6.4 

7.2 

6.8

6.S 

7.2 

6.6 

6.4 

6.4

6.6 

4.9 

5.1 

4.7 

4.5

4.4 

3.9 

3.9 

3.6 

3.6

3.6 

3.4 

3.4 

3.4 

3.2 

3.2

HOT.

3.1 

3.2 

3.1 

3.2 

3.2

3.1

3.4 

3.4 

3.5

3.7 

4.0 

3.9 

4.0 

4.2

3.7 

4.0 

3.9 

3.7 

3.6

3.6 

3.9 

3.6 

3.7 

3.6

3.7 

3.9 

3.7 

3.4 

3.9

Dec.

4.7 

4.9 

4.9 

4-2 

3.9

3.7

3.7 

3.7

3.5

4-0 

3.9 

4.2 

6.2

6.4

6.6 

6.4 

6.0 

5.8 

5.8

5.6 

5.0 

5.4 

5.2 

4.4

4.2 

4.2 

4.4 

4-6 

4-8 

5.0

Jan.

5.2 

4.8 

4.6 

4.4 

4.5

4.0

3.6 

4.0

5.4

4.8 

5.0 

*4.6 

4.0 

4.4

4.6 

4.4 

3.0 

2.2 

2.6

2.8 

2.6 

2.4 

2.6 

2.8

2.8 

2.8 

2.8 

2.6 

2.4 

2.4

Peb.

2.4 

2.4 

2.4 

2.4 

2.4

2.4

2.4 

2.2

2.2

2.0 

*1.9 

l.S 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

2.0 

2.0

2.0 

2.0 

2.2 

2.4

Month

Oot 

HOT 

Dec

0

Jan 

Peb 

Mar

Apr

JUD

Jul 

Aug 

Sop

R

uary

Si::::::::::::::::::::::::::::::::::::

ater year 1939-i

liar.

2.2 

2.7 

2.0 

2.6 

3.3

3.2

2.4 

2.6 

2.7

2.9 

3.0 

2.6 

3.9 

3.6

4.0 

2.6 

3.6 

2.4 

3.6

4.5 

3.2 

3.2 

3.4 

3.6

3.4 

3.4 

2.9 

3.0 

3.0 

2.8

Apr.

2.9 

2.7 

2.6 

2.3 

2.3

2.3

2.1 

2.0 

2.0

1.9 

1.7 

1.8 

1.8 

1.9

2.1 

2 «2 

2.3 

3.0 

4.2

5.0 

4.8 

6.6 

7.0 

8.4

8.8 

8.4 

6.6 

6.2 

4.2

Seoondfoot-days

159.2 

108.0 

149.0

2,262.9

112.7 

59.9 

95.5 

112.2 

161.6 

22.9 

18.9 

17-0 

14.2

1,031.1

May

4.2 

3.2 

5.E 

16 

9.C

S.£

5.£

6.4 

8.^

12 

11

s.e

7.E 

7.C

7.£ 

6.E 

4.1 

2. i.e

i.e i.e

1.6 

I.Ei.e

1.9 

2.C1.1

I.Ei.e

l.S

MqiHuimii

7.2 

4.2 

6.6

69

5.4 

2.4 

4.5 

8.8 

16 

1.5 

.8 

1.0 

.9

16

June

1.5 

1.5 

1.2 

1.2 

1.1

1.1

1.0 

.8

.8

.6 

.5 

.5 

.6 

.6

.6

.6 

.6 

.6 

.6

.7 

.6 

.6 

.6 

.4

.6 

.6 

.6 

.6 

.6

July

0.6 

.7 

.7 

.7 

.7

.7

.6 

.5 

.5

.4 

.5 

.4 

.5 

.6

.6 

.6 

.8 

.8 

.6

.7 

.6 

.8 

.8 

.6

.5 

.6 

.6 

.5 

.6 

.4

Aug.

0.5 

.5 

.4 

.4 

.4

.4

.4 

.2 

.2

.2 

.2 

.2 

.2 

.2

.4 

.4 

.4 

.6 

.6

.6 

.8 

.9 

1.0 

1.0

1.0 

1.0 

.9 

.9 

.9 

.8

Minimum Mean

3.2 5-14 

3.1 3.60 

3.5 4-81

.8 6.20

2.2 3.64 

1.8 2.07 

2.0 3.08 

1.7 3.74 

1.5 5-21 

.4 .76 

.4 .61 

.2 .55 

.2 .47

.2 2.82

Sept.

0.8 

.8 

.9 

.9 

.8

.6

.4 

.4 

.4

.4 

.4 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.3

.3 

.2 

.2 

.4

.6 

.6 

.8 

.9 

.9

Run-off in 

acre-feet

316 

214 

296

4,490

224

119 

189 

223 

321

45 

37 

34 

28

2,050

Winter-discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dec. 19, 20, 22, Dec. 24 to Peb. 29.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeologi J. Surrey
GREEN RIVER BASIN 127

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 

6,696.33 feet above mean sea level (general adjustment of 1912).

Drainage area.- 604 square miles.

Records available.- May 1904 to October 1906 and October 1909 to September 1986 (monthly 

 discharge), and October 1933 to September 1940 In reports of Geological Survey. May 

1904 to October 1906 and March 1910 to September 1940 In reports of S^ate engineer.

Average discharge.- 33 years, 492 second-feet.

Extremes.- Maximum discharge during year, 3,220 second-feet May 31 (gage height, 4.94 

feet); minimum daily, 14 second-feet Sept. 13.

1904-6. 1909-40: Maximum discharge, 6,820 second-feet June 14, 1931 (gage height, 

7.08 feet); minimum daily, 4 second-feet Sept. 8, 1934.

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 1939 to September 1940

Day

1

a

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

81 

22 

23 

24 

25

26 

27 

28 

89 

30 

31

Oct.

95

S6 

77 

S4 

95

a98 

al02 

107 

114 

124

122

114 

110 

110 

110

110 

107 

97 

97 

95

90 

90 

93 

90 

77

86 

97 

95 

102 

95 

107

Hcv.

110 

117 

112 

107 

112

117 

114 

110 

117 

102

86 

100 

110 

107 

93

95 

79 

74 

88 

66

102 

127 

84 

95 

97

90 

95 

86 

81 

68

Dec.

72 

79 

72 

72 

72

74 

81 

74 

79 

79

74 

90 

68 

79 

81

79 

97 

97 

95 

48

61 

b56 

54 

56 

63

68 

70 

b64 

54 

50 

56

Jan.

65 

79 

90 

90 

90

68 

D85 

b82 

77 

77

86 

90 

81 

84 

b60

b66 

70 

h65 

b60 

b59

b60 

h68 

066 

b68 

66

68 

77 

74 

86 

S6

ae

Feb.

74 

77 

61 

84 

77

79 

61 

6S 

81 

8S

72 

84 

79 

74 

65

77 

b66 

b70 

b74 

70

79 

77 

72 

77 

79

SI 

81 

88 

100

Month

Oct 

HOT 

Dec

C

Jan 

Fefc 

Mar dpl May 

Jim 

Ail

£* Set

V

alendar ysar 1939. .....................

uary

ater yearl939-4C

Mar.

112 

127 

114 

120

114

104 

114 

107 

a!07 

a!06

a 105 

a!04 

104 

104 

104

107 

120 

127 

130 

143

146 

165 

211 

246 

267

285 

297 

285 

249 

235 

281

Apr.

388 

3S4 

293 

285 

356

410 

384 

361 

370 

379

301 

263 

330 

515 

733

758 

673 

581 

614 

679

703 

691 

626 

733 

914

934 

927 

914 

862 

790

Secondfoot-days

3,076 

2,961 

2,216

148,463

2,340 

2,255 

4,940 

17,150 

58,052 

30,733 

3,893 

1,626 

1,974

131,216

May

673 

709 

810 

1,070 

1,250

1,340 

1,380 

1,410 

1,610 

1,670

2,110 

2,220 

2,380 

2,210 

2,240

2,480 

2,530 

2,150 

2,150 

2,120

1,980 

1,710 

1,720 

1,770 

1,860

1,950 

2,430 

2,440 

a2,470 

a2,490 

2,520

MmHimim

124 

127 

97

2,610

90 

100 

297 

934 

2,530 

2,620 

361 

117 

198

2,620

June

2,620 

2,570 

2,440 

2,210 

1,890

1,620 

1,410 

1,320 

1,120 

1,080

1,050 

1,040 

1,040 

1,020 

954

914 

610 

745 

673 

603

592 

554 

476 

420 

34S

301 

263 

235 

211 

204

July

235 

356 

361 

289 

242

211 

174 

146 

127 

114

110 

90 

86 

66 

S4

72 

72 

90 

107 

90

77 

6S 

74 

65 

65

63 

56 

61 

74 

74 

74

MIll'tTITVnB

77 

66 

48

34

58 

65 

104 

263 

673 

204 

56 

24 

14

14

Aug.

74 

65 

56 

56 

51

48 

60 

53 

53 

60

63 

56 

48 

40 

35

35 

34 

34 

30 

32

24 

26 

24 

30 

3S

S6 

117 

107 

88 

70 

53

Mean

99.2 

9S. 7 

71.5

407

75.5 

77.8 

159 

572 

1,873 

1,024 

126 

52.5 

65.8

359

Sept.

40 

23 

24 

29 

26

26 

26 

20 

20 

27

26 

18 

14 

34 

48

51 

54 

65 

70 

74

84 

117 

112 

97 

84

107 

198 

140 

146 

174

Run-off in 

acre-feet

6,100 

5,870 

4,400

294,600

4,640 

4,470 

9,800 

34,020 

115,100 

60,960 

7,720 

3,230 

3,920

260,200

a Ho gage-height record; discharge interpolated, 

b Stage-discharge relation affected by lee.

9-232 February 1936

UNITED STATES DEPAP-TIEHT OP THE IHTERIOR 

Qeolog al Surrey
128 GREEN RIVER BASIN 

Yampa River near Maybell, Colo.

Location.- Water-stage recorder, lat. 40°30', long. 108°02', In sec. 2, T. 6 II., R. 95 W., 

3 miles east of Maybe11.

Drainage area.- 3,410 square miles.

Records available.- April 1904 to October 1905, June 1910 to November 1912, April 1916 to 

September 1917, and October 1917 to September 1926 (monthly discharge), and October 

1933 to September 1940 In reports of Geological Survey. April 1916 to September 1940 

In reports of State engineer.

Average discharge.- 24 years (1916-40), 1,664 second-feet.

Extremes.- Maximum discharge during year, 9,170 second-feet May 14 (gage height, 7.64 

feet); minimum dally, 41 second-feet Sept. 7, 8.

1904-5, 1910-12, 1916-40: Maximum discharge observed, 17,900 second-feet May 19, 

1917 (gage height, about 10.4 feet, site and datum then In use), from rating curve 

extended above 12,000 second-feet; minimum dally, 2 second-feet July 17-19, 1934.

Remarks.- Records excellent above 1,000 second-feet and good below, except those for 

period of Ice effect, which are fair. Diversions above station for Irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

81

22

23

24

25

26

27

28

29

30

31

Oct.

352

329

285

275

265

255

285

324

358

356

376

370

564

352

334

329

318

302

296

290

285

275

260

250

245

280

290

280

296

285

265

HOT.

270

250

285

285

296

296

296

296

318

312

312

302

250

260

265

265

255

210

189

180

175

186

210

228

221

200

218

240

240

200

-

Dec.

197

204

197

180

168

163

175

192

265

235

232

172

1S7

132

128

163

189

170

125

114

141

95

126

132

139

139

137

«123

150

146

148

Jan.

157

172

194

189

192

178

165

163

152

141

143

135

128

130

114

120

125

125

116

126

130

132

150

*168

170

175

180

175

172

178

183

Feb.

20O

250

250

240

228

224

224

224

*221

218

221

221

218

221

221

221

218

218

221

221

218

224

235

255

270

312

352

436

448

-

Month

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

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

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

Water year 1939-4KX..... ................

Mar.

460

*448

448

448

448

448

448

406

424

430

412

418

358

312

312

312

340

400

394

424

460

520

574

643

784

880

1,070

1,260

1,250

1.010

906

Apr.

1,130

1,430

1,600

1,200

1,100

1,220

1,390

1,370

1,180

1,200

1,300

1,170

948

965

1,420

2,230

2,380

2,180

2,010

2,380

2,840

3,190

4,130

4,450

3,860

5,080

4,920

5,080

4,730

4,290

Seoondfoot-days

9,428

7,510

5,014

482,968

4

l7t7Q

, f iO

7,230

17,447

72,373

188 S70

97^920

12,125

2,306

2,743

427,244

May

3,400

2,S50

3,180

4,160

5,700

6,230

6,160

6,030

6,140

6,730

7,300

7,770

8,210

8,850

8,090

7,260

7,820

8,180

6,890

6,250

6,160

6,030

5,140

4,810

4,730

5,020

5,120

6,250

6,290

5,920

5,700

Mo^Tm-mi

376

318

265

7,610

194

448

1,260

5,080

8,850

6,560

983

121

302

8,850

June

6,230

6,560

6,560

6,510

5,940

5,540

4,830

3,820

3,750

3,160

2,700

2,780

2,980

3,110

3,210

3,100

3,130

2,960

2,580

2,330

2,340

2,610

2,180

1,910

1,630

1,380

1,230

1,080

940

840

-

July

752

744

840

982

931

816

685

615

538

434

424

340

307

280

250

210

270

245

240

302

296

245

214

189

172

163

128

118

113

116

116

Minimum

245

175

95

55

114

200

312

948

2 ,850

OwJ AAn

113

44

41

41

Aug.

121

120

113

110

105

99

96

92

86

62

77

74

70

68

65

62

57

55

52

50

47

45

51

44

49

120

60

49

54

63

70

Mean

3T4 2."0

162

1,2?8

154

2«J

SSS

2,412

6,076

3, S"4

O ^*nJ i

74.4

91.4

1,197

Sept.

66

64

59

43

44

42

41

41

42

58

44

47

49

74

59

50

47

48

55

64

69

76

128

141

172

175

159

204

275

302

-

Run-off in 

acre-feet

18,700

14,900

9,950

918,300

9,480

14,340

34,610

143,500

373,600

194,200

24,050

4,570

5,440

847,300

Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dec. 12 to Mar. 6.

9-232 February 1936

UNITED STATES DKPAP^MENT OF THB INTERIOR 

Oeolog al Surrey
GREEN RIVER BASIN 

Elk River at Clark, Colo.

129

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.

Drainage area.- 206 square miles.

Records available.- May 1910 to November 1913 and December 1913 to September 1922 (monthly 

discharge only, published as Elk River near Clark) and October 1933 to September 1940 

in reports of Geological Survey. May 1910 to September 1922 and April 1930 to September 1940 in reports of State engineer.

Average discharge.- 22 years, 373 second-feet.

Extremes.^ Maximum discharge during year, 2,680 second-feet May 13 (gage height, 4.63 

reet), from rating curve extended above 1,900 second-feet; minimum daily, 27 secondfeet Jan. 19,

1910-22, 1930-40: Maximum daily discharge, 4,470 second-feet June 6, 9, 1912; 

minimum discharge observed, 22 second-feet Apr. 7, 1935 (gage height, 0.62 foot).

Remarks.- Records excellent above 100 second-feet and good below, except those for 

periods of ice effect or no gage-height record, which-are fair. Practically no 

diversion or regulation.

Discharge, In second-feet, water year October 1939 to September 1°40

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.

83

77

74

83

102

115

115

104

108

100

94

90

83

78

78

77

75

74

71

68

65

65

64

64

64

74

75

64

75

58

66

Hov.

72

74

69

68

69

82

75

66

75

48

57

65

59

58

54

51

44

48

46

50

54

52

52

61

52

56

58

51

50

50

Dec.

53

50

52

53

56

54

57

57

53

53

54

57

54

61

59

65

58

59

57

60

 64

56

62

56

56

57

56

45

47

50

53

Jan.

55

56

58

57

54

42

30

32

32

39

32

31

30

29

 28

29

34

30

27

32

33

28

35

40

38

38

42

45

38

33

35

Pel).

37

42

45

43

41

42

38

38

40

42

43

37

34

34

37

34

30

31

32

34

32

33

33

32

31

31

33

631

37

-

Honth

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

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

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

Vuy.. .....................................

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

Water year 1939-40....... ...............

Mar.

39

40

48

58

65

62

58

54

54

56

56

57

64

72

65

65

59

56

56

56

57

61

71

77

78

80

82

78

72

75

88

Apr.

110

112

102

104

108

108

104

94

94

86

82

74

86

132

195

221

221

268

364

475

552

569

569

752

850

925

940

715

536

425

Seoondfcot-days

2,483

1,756

1,724

100,272

1,162

1,047

1,959

9,973

42,818

28,755

6,200

2,129

1,897

101,903

May

435

619

964

1,230

1,200

1,160

1,160

1,290

1,520

1,630

1,740

1,830

2,180

1,590

1,540

2,000

1,960

1,510

al,460

al,350

al,190

al,120

1,140

1,210

1,250

1,270

1,470

1,470

1,350

1,380

1,600

MflTfJBIUBI

115

82

65

1,540

58

45

88

940

2,180

1,750

394

1 VO J.O«

108

2,180

June

1,700

1,750

1,740

1,570

1,480

1,310

1,070

1,030

865

806

858

980

1,060

1,090

1,060

1,100

983

880

880

872

964

768

687

580

530

500

455

425

394

364

-

July

360

394

384

340

308

283

272

257

240

223

213

195

188

182

173

170

203

218

178

159

143

132

126

117

112

102

94

100

112

117

100

Minimum

58

44

45

34

27

30

39

74

435

364

94

50

46

27

Aug.

106

83

78

75

71

68

68

66

64

62

65

59

57

54

52

51

50

51

52

56

56

58

56

56

71

132

117

86

75

69

65

Mean

80.1

58.5

55.6

275

37.5

36.1

63.2

332

1,381

953

200

68*7

63.2

278

Sept.

61

58

54

62

51

47

46

46

54

85

62

53

51

53

57

53

57

59

66

62

64

102

74

64

61

68

77

64

78

108

~

Run-off in 

ao re-feet

4,920

3,480

3,420

198,900

2,300

2,080

3,890

19,780

34 1 930

57,030

12 j 300

4*220

3,760

202,100

 Winter discharge measurement made on this day.

a Ho gage-height record} discharge computed on basis of records for Little SnnJce River at Dlxon, 

Wyo.

Hote.- Stage-discharge relation affected by ice Dec. 20 to Mar. 5.

9-232 February 1936

UNITED STATES DEPAff <KHT OP THB INTERIOR 

Qeologl 1 Surrey
130 GREEN RIVER BASIN

Little Snake River near Dlxon, 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 Dlxon. Datum of gage Is 

6,332.81 feet above mean sea level (unadjusted).

Drainage area.- 988 square miles.

Records available.- May 1910 to September 1923, March 1938 to September 1940.

Extremes.- Maximum discharge during year, 3,470 second-feet May 13 (gage height, 5.58 

feet); minimum dally, 1.8 second-feet Aug. 18, 19.

1910-23, 1938-40: Maximum discharge observed, 8,960 second-feet May 23, 1920 

(gage height, 8.3 feet), from rating curve extended above 6,000 second-fe^t; minimum 

daily, 0.6 second-foot Aug. 24-27, 1939.

Remarks.- Records excellent above 30 second-feet and good below, except thos? for periods

 of ice effect, which are fair. Diversions above station for irrigation.

Rating table, water year 1939-4O, except periods of ice effect (gage height, in feet, and 

discharge, in second-feet)

0.7

.8

.9

1.0

1.1

1.2

1.3

1

2

4

8

13

20

29

1.6

1.6

1.7

1.8

1.9

2.0

2.1

60

62

76

94

116

142

172

2.3

2.6

2.8

3.4

3.7

4.7

6.6

240

326

490

900

1,170

2,330

3,370

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

SO

21

22

23

24

25

26

27

SB

29

30

51

Oct.

14

12

9.5

11

12

14

16

16

14

23

31

28

26

24

22

21

23

27

43

44

47

48

44

46

47

60

68

72

62

65

60

HOT.

62

70

72

69

68

69

72

70

68

76

62

60

44

60

50

62

44

47

67

55

55

67

65

66

67-

62

60

62

56

58

-

Dec.

66

67

66

66

60

65

62

66

60

60

66

63

69

66

68

69

66

68

72

68

61

67

62

64 ' 62

50

48

46

48

66

60

Jan.

64

61

60

60

62

60

64

60

66

60

64

*62

58

54

6d

62

64

52

46

47

48

46

50

64

60

63

67

70

74

72

70

Feb.

74

77

74

74

70

64

68

66

70

*70

74

74

66

62

66

62

60

66

74

76

71

76

84

88

100

110

120

130

140

-

Month

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

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

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

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

Water year 1939-4 3...... ................

Mar.

160

148

134

119

114

114

96

106

101

94

96

92

87

78

80

89

107

89

96

105

96

112

134

169

212

248

316

284

244

226

289

Apr.

408

442

289

284

264

316

284

240

262

276

244

192

219

335

548

662

548

668

755

964

1,110

1,160

916

1,260

1,780

3,800

2,040

1,660

1,480

1,070

Seoondfoot-days

1,047.6

1,774

1,824

126,218.5

1,800

2,306

4,434

22,346

70,848

19,760

369. 9

124 9

soil?

126,936.0

May

678

1,060

1,660

2,660

2,640

2,470

2,340

2,370

2,620

2,720

2,860

2,930

3,320

2,920

2,690

2,760

3,060

2,620

2,380

2,360

2,160

2,020

1,910

1,870

1,930

1,890

2,070

2,020

2,020

1,850

1,920

llq^Wmq

72

76

72

2,920

74

140

316

2,040

3,320

1,970

38

12

29

3,320

June

1,970

1,910

1,360

1,660

1,500

1,370

1,150

1,020

840

741

686

669

626

581

529

484

414

330

268

222

198

192

163

116

86

58

43

37

33

26

-

July

23

28

38

32

24

19

16

14

12

10

9.6

9.5

10

10

9.0

9.6

9.0

9.6

9.6

9.0

7.6

7.2

6.4

6.4

6.8

6.6

4.8

4.4

3.4

3.2

3.6

Minimum

9.6

44

46

.6

46

60

78

192

878

26

1.8

2.6

1.8

Aug.

3.8

3.6

3.4

3.0

3.0

3.8

3.8

3.4

3.0

2.6

2.8

2.0

2.2

2.6

2.8

2.6

2.0

1.8

1.8

2.0

2.6

3.0

3.4

4.8

4.0

6.2

12

12

9.6

7.2

5.2

Mean

33-8

59.1

58.8

346

EO T OO iX

79.6

143

745

2,285

669

11.9

4.03

10.1

347

Sept.

4.0

3.6

3.6

2.8

2.8

2.6

3.0

3.0

4.4

6.2

6.0

7.2

6.8

7.2

9.5

9.0

11

10

10

14

15

19

24

29

21

12

11

16

12

18

~

Run-off in 

acre-feet

2,080

3,520

3,620

250,500

3,570

4,670

8 f f I9\J on

44 320

140^500

39,190

734

248

698

261,700

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by Ice Dec. 13, 14, Dec. 26 to Mar. 1.

9-238 February 1936

UNITED STATES DERAILMENT OF THE INTERIOR 

Qeolog il Surrey
GREEN RIVER BASIN 131

Little Snake River near Lily, Colo.

Location.- Water-stage recorder, lat. 40°32', long. 108°25', In sec. 20, T. 7 N., R. 

98 W., 6 miles north of Lily and 10 miles (revised) upstream from mouth.

Drainage area.- 3,730 square miles.

Records available.- June to August 1904, May 1922 to September 1927, ard October 1933 

to September 1940 In reports or Geological Survey. June to August 1904 and May 1922 

to September 1940 In reports of State engineer.

Extremes.- Maximum discharge during year, 3,520 second-feet May 14 (gag-e height, 4.43 

feet); no flow July 26-31, Aug. 1-21, 29-31, Sept. 1-8, 11-19.

1904, 1922-40: Maximum discharge, 14,200 second-feet May 27, 19£6 (gage height, 

10.5 feet); no flow at times In 1924, 1930, 1931, 1934-36, 1939-40.

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 1939 to September 194O

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.7 

15

151 

140 

80 

70 

48

40 

132 

58 

50 

42

30 

24 

22 

23 

23

22 

24 

24 

25 

26

44 

34 

32 

38 

48 

52

Hov.

55 

46 

46 

44 

48

55 

55 

52 

60 

52

55 

55 

55 

58 

48

46 

23 

20 

28

44

52 

48 

50 

40 

46

55 

52 

52 

46 

24

Dec.

65 

52 

55 

68 

40

34 

38 

50 

50 

49

52 

40 

32 

33 

35

38 

41 

30 

25 

35

30 

21 

22 

26 

21

IS 

20 

 15 

17 

21 

26

Jan.

31 

34 

35 

32 

30

24 

20 

22 

29 

2S

22 

26 

17 

18 

16

21 

24 

12 

9 

12

14 

9 

15 

16 

13

20 

23 

29 

31 

23 

29

Feb.

35 

40 

44 

44 

39

32 

37 

34 

31 

40

35 

31 

29 

36 

35

33 

26 

32 

40 

45

35 

52 

60 

54 

64

82 

72 

105 

100

Month

Dot 

Hoi

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

H

nary

 ter year 1939-4

Mar.

94 

80 

90 

74 

90

SO 

86 

94 

SO 

86

78 

70 

64 

78 

100

140 

160 

135 

190 

240

300 

366 

383 

394 

445

468 

462 

608 

562 

550 

422

Apr.

340 

405 

550 

601 

562

538 

445 

451 

479 

422

388 

411 

416 

350 

320

439 

678 

772 

706 

706

872 

1,140 

1,290 

1,260 

1,150

1,740 

2,090 

2,100 

1,880 

1,740

Seoondf cot-days

1,318.3 

1,410 

1,099

142,746.1

684 

1,342 

6,969 

25,241 

68,881 

23,019 

232.5 

123.5 

877.1

131,196.4

May

1,500 

1,140 

961 

1,220 

2,260

2,730 

2,540 

2,320 

2,280 

2,490

2,720 

2,890 

2,920 

3,100 

3,070

2,640 

2,680 

2,920 

2,860 

2,400

2,250 

2,200 

2,100 

1,970 

1,880

1,860 

1,860 

1,880 

1,930 

1,690 

1,620

«»* »

151 

60 

68

3,260

35

105 

562 

2,100 

3,100 

1,740 

40 

118 

433

3,100

June

1,510 

1,720 

1,670 

1,560 

1,740

1,600 

1,430 

1,310 

1,160 

1,050

889 

780 

713 

671 

643

608 

562 

532 

491 

422

366 

320 

282 

254 

233

174 

132 

85 

60 

52

July

40 

3? 

£4 

23 

1<3

15 

12 

12 

IP

9.0

7.5 

7.5 

5.5 

3.8 

3.0

1.4 

3.4 

1.4 

1.0 

.8

.6 

.6 

.5 

.3 

.2

0 

0 

0 

0 

0 

0

HHfi^^p^

0.2 

20 

15

0

9 

26 

64 

320 

961 

52 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.3

.1 

.2 

4.1

118 

.7 

.1 

0 

0 

0

Mean

42.5 

47.0 

35.5

391

22.1 

46.3 

225 

841 

2,222 

767 

7.50 

3.98 

29.2

358

Sept.

0 

0 

0 

0 

0

0 

0 

0 

2.4 

4.8

0 

0 

0 

0 

0

0 

0 

0 

0 

16

68 

72 

9.0 

5.0 

4.6

4.6 

4.2 

5.5 

248 

433

Hun-off In 

acre-feet

2,610 

2,800 

2,180

283,100

1,360 

2,660 

13,820 

50,060 

136,600 

45,660 

461 

245 

1,740

260,200

 Winter discharge measurement made on this day.

Hote»- Stage-discharge relation affected by Ice Dec. 9 to Mar. 21.

9-292 February 1936

UHITED STATES DEPATMEHT OF THE IHTERIOR 

Oeolot al Surrey
132 GREEN RIVER BASIN

Slater Fork near Slater, Colo.

Location.- Water-stage recorder, lat. 40°59', long. 107°23', In SWi 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 and October 1933 to September 1940 in reports 

of Geological Survey. May 1910 to May 1912 and June 1931 to September 1940 in reports 

of State engineer.

Extremes.- Maximum discharge during year, 434 second-feet May 17 (gage height, 5.42 feet); 

minimum daily, 0.5 second-feet Aug. 2, 17.

1910-12, 1931-40: Maximum dally discharge, 1,700 second-feet May 19, 1912; no 

flow Aug. 2-10, 1934, Aug. 18, 25-27, 1936.

Remarks.- Records good except those below 10 second-feet, which are fair, and those 

for period of ice effect, which are poor. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

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.

11

10

9.8

11

14

14

15

15

17

17

17

16

16

16

16

16

16

16

15

15

14

14

13

13

12

14

14

13

13

12

13

HOT.

14

14

13

13

13

14

14

14

14

11

11

11

12

12

11

9.4

8.4

8.4

8.4

8.4

9.2

9.2

9.0

8.7

7.8

8.7

9.0

9.6

S.8

8.2

-

Dec.

12

11

10

10

10

10

11

12

13

12

13

11

10

10

11

12

13

12

12

13

12

13

11

11

10

10

10

10

10

11

12

Jan.

13

13

12

13

12

12

11

10

12

13

14

*14

13

12

11

11

11

10

9.4

9.6

9.8

9.7

10

11

12

13

14

15

15

15

14

Feb.'

15

16

15

14

13

13

13

14

14

*14

14

15

14

12

13

12

12

12

13

14

13

15

16

18

20

22

24

27

28

-

Month

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

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

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

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

Water year 1939-4 D ......................

Mar.

29

27

25

23

22

20

18

19

18

17

17

17

16

16

15

*17

19

17

18

19

19

19

21

24

26

30

35

32

26

26

37

Apr.

46

45

34

33

34

40

36

33

38

42

35

30

38

59

76

84

68

89

139

180

209

196

168

251

31S

291

309

238

211

150

-

Secondfoot-days

437.8

322.2

348

18,399.5

374.5

455

684

3,520

8,927

3,147.2

215.6

72.9 

266.9

18,771.1

May

132

162

265

337

345

345

332

302

306

297

301

346

367

376

320

361

379

310

270

262

248

231

206

223

228

254

295

294

280

267

266

Maximum

17

14

13

341

15

28

37

318

3V 9

r>ert 60 f

17

8.7 

35

379

June

267

259

254

236

218

195

167

140

127

110

104

105

112

109

106

98

86

73

62

64

50

47

40

32

27

21

15

15

10

8.2

-

July

9.6

15

17

16

16

16

14

11

9.4

8.1

7.4

6.8

6.0

4.3

4.2

4.1

4.9

7.8

6.6

5.4

4.6

4.0

3.2

3.3

2.4

2.1

1.7

.9

.9

1.1

1.8

Minimum

9.8

7.8

10

1.2

9 4

12

15

30

132

8.2

.9

.5 

1.4

.5

Aug.

0.8

.5

.9

1.2

1.8

1.1

2.3

1.8

1.8

1.2

1.4

1.6

1.8

1.8

2.0

2.3

.5

.7

1.4

1.2

1.9

1.7

1.6

2.1

3.3

6.2

8.7

6.4

4.9

4.2

3.8

Mean

14.1

10 ,,7

11.2

50.4

12 1

is!? 11?' 22 1

288

105

6.95

2.35 

8.90

51.3

Sept.

3.2

2.6

2.1

1.7

l.S

1.4

1.4

2.4

2.1

7.8

4.5

4.1

7.5

12

8.1

6.9

S.6

6.2

12

10

9.8

11

13

15

13

14

16

15

22

35

-

Run-off in 

acre-feet

868

639

690

36,500

743

902

10360

6 980 17)710 6,240

428

145 

529

37,230

 Winter discharge measurement made on this day.

Hcte.- Stage-discharge relation affected by ice Dec. 12 to Mar. 16.

9-232 February 1936

UNITED STATES DEPATCENT OP THE IKTERIOR 

Geolog al Surrey
GREEN RIVER BASIN 133

Ashley Creek near Vernal, Utah

Location.- Water-stage recorder, lat. 40°35', long. 109°37', in sec. 1, T. 3 S., R. 20 

E., three-quarters of a mile upstream from head of Utah Power & Light Co.'s canal 

and 12 miles northwest of Vernal.

Drainage area.- 101 square miles.

Records available.- June 1914 to September 1940. March 1900 to December 1904 (fragmentary), at site Just below Dry Fork. October 1911 to June 1914, at power plant 1| 

miles downstream.

Average discharge.- 24 years (1914-16, 1918-40), 103 second-feet.

Extremes.- Maximum discharge during year, 703 second-feet May 9 (gage height, 7.78 

feet); minimum, 21 second-feet Mar. 2.

1911-40: Maximum discharge, 2,050 second-feet May 29, 1921; minimum discharge 

recorded, 16 second-feet Mar. 21, 1937.

Remarks.- Records good. Flow is increased by water diverted from Oaks Park Reservoir 

(capacity, 6,250 acre-feet) on Brush Creek for Irrigation in Ashley Creek Basin. 

No diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

1112

IS

14

15

16

17

IB

19

20

HI

22

23

24

25

26

27

28

29

30

51

Oct.

S9

69

89

95

102

113

111

102

99

99

102

99

97

97

97

97

95

93

S9

S9

87

85

85

83

SI

79

79

77

77

74

77

HOT.

77

75

74

75

74

72

70

68

72

60

59

59

57

57

57

54

52

52

50

50

50

50

50

50

50

49

49

49

46

42

-

Dec.

41

41

41

41

42

41

41

41

41

40

40

3S

34

36

35

35

35

33

30

30

30

30

30

30

31

31

30

30

30

30

30

Jan.

30

29

29

28

28

2S

2S

2S

2S

28

27

27

27

27

27

27

27

26

26

26

26

25

25

24

24

24

24

24

24

24

24

Feb.

24

24

24

24

24

24

24

24

24

24

24

23

23

23

23

23

23

23

23

23

23

23

24

24

23

23

23

23

22

_

-

Month

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

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

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

Water year 1939-40...... ................

Mar.

22

22

23

23

23

23

23

23

23

23

23

23

23

25

23

23

23

24

24

24

24

24

24

25

24

25

26

26

24

25

24

Apr.

24

24

24

24

24

25

25

25

25

25

S6

26

27

30

30

34

34

34

49

93

148

145

153

216

232

235

195

135

130

120

Secondfoot-days

2,827

1,749

1,088

31,685

819

679

732

2,337

8,802

3,484

2,066

1,097

1,502

27,132

May

122

184

317

414

396

365

353

365

451

495

441

409

396

361

344

320

294

258

232

220

223

210

195

181

167

161

2O4

210

192

169

153

VflTHnmrn

113

77

42

531

30

24

26

235

495

167

108

46

95

495

June

167

164

161

153

153

158

150

14S

140

122

106

102

102

97

93

93

93

91

89

S3

85

104

118

115

113

104

75

104

102

99

-

July

102

108

99

97

99

97

93

68

56

77

77

75

74

72

70

68

72

53

46

46

45

62

72

59

50

44

41

38

36

35

35

Minimum

74

42

30

30

24

22

22

24

122

75

35

30

36

22

Aug.

35

34

34

33

32

33

33

36

33

31

30

30

30

30

30

32

33

32

32

34

34

35

40

41

45

46

46

44

41

40

38

Mean

91.2

58.3

35.1

86. S

26.4

23.4

23.6

77.9

264

116

66*6

35.4

50.1

74.3

Sept.

36

36

36

39

40

40

39

36

36

40

40

39

39

39

40

42

41

44

52

56

57

60

60

60

60

63

63

81

93

95

"

Run-off in 

acre-feet

5,610

3,470

2,160

62,840

1,620

1,350

1,450

4,640

17,460

6,910

4,100

2,180

2,980

53,930

9-232 Febr\»T '936

OTITED STATES DEPApn-MEHT OP THB INTERIOR 

Qeolog. il Survey
134 GREEN RIVER BASIN

Duchesne River at Provo River Trail, near Hanna, Utah

Location.- Water-stage recorder, lat. 40°37', long. 110°54', in SEi sec. 27, T. 3 N., 

R. 9 W., Uinta meridian, 400 feet downstream from Provo River Trail bridge, 7 miles 

upstream from Hades Creek, and 12 miles northwest of Hanna. Altitude of gage, 8,120 

feet (from topographic map).

Drainage area.- 39 square miles.

Records available.- July 1929 to September 1933, October 1935 to September 1940.

Extremes.- Maximum discharge during year, 566 second-feet May 15 (gage height, 3.05 

 feet); minimum discharge recorded, 2 second-feet Dec. 5, but may have been less during period of ice effect.

1929-33, 1935-40: Maximum discharge recorded, 888 second-feet June 24, 1932; 

minimum recorded, 1 second-foot Aug. 30, 1931.

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

which are fair. Records show flow of river at proposed diversion tunnel to Provo 

River. No diversions above station.

Cooperation.- Water-stage recorder graph and five discharge measurements furnished by 

Bureau or Reclamation.

Discharge, In second-feet, water year October 1939 to September 194O

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

SO

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

12 

13 

15 

16

16 

15 

14 

14 

14

14 

14 

14 

14 

a!4

a!3 

a!3 

a!3 

a!3 

a!2

al2

a!2 

a!2 

a!2 

all

all 

a!2 

all 

alo 

alo 

alO

HOT.

a9 

a9 

9 

8

> a6

5 

4 

4

Dec.

4 

4 

3 

3 

3

3 

3 

3 

4 

4

4

> b3

i

Jan.

b3

Feb.

 b3

Month

Oct 

Hov 

Dec

C

Jan 

Peb 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

W

uary

»ter year 1939-4 D

Mar.

a5

i

Apr.

a8 

a8 

a8 

a8 

a8

a8 

aS 

a8 

a8 

a8

a8 

alO 

a!2 

a!6 

21

18 

18 

24 

33 

41

44 

44 

47 

50 

52

50 

44 

40 

37 

33

Seoondfoot-days

396 

186 

98

15,094

93 

87 

155 

722 

8,9O9 

2,130 

467 

166 

461

13,890

May

35 

49 

72 

88 

83

86 

101 

131 

192 

251

343 

411 

443 

435 

477

53O 

498 

456 

392 

369

343 

340 

351 

347 

340

376 

340 

a3OO 

a25O 

a240 

a240

MjOclimnq

16 

9

333

52 

530 

230 

39 

9 

41

530

June

a230 

a!9O 

a!60 

al40 

al30

alOO 

a 90 

a85 

a70 

a66

a 64 

a 64 

a 62 

61 

60

56 

51 

49 

46 

44

41 

38 

35 

33 

30

28 

27 

25 

24 

31

July

39 

30 

25 

24 

23

21 

19 

18 

17 

16

15 

14 

14 

13 

13

16 

16 

14 

13 

12

11 

10 

9 

9 

9

8 

8 

8 

8 

8 

7

114 Tl 3 Ml TIH

10 

4

-

8 

35 

24 

7 

5 

5

-

Aug.

7 

6 

6 

6 

6

6 

6 

6 

6 

5

5 

5 

5 

5 

5

6 

5 

5 

6 

8

7 

6 

6 

6 

8

9 

7 

6 

6 

5 

5

Mean

12,8 

6.2 

3.2

41.4

3.0 

3.0 

5.0 

2''-l 

287 

7^.0 

15.1 

6.0 

15.4

sa.o

Sept.

5 

5 

9 

14 

15

9 

8 

8 

8 

9

8 

8 

13 

12 

10

8 

9 

14 

14 

25

24 

24 

19 

16 

16

16 

16 

38 

41 

4O

Run-off in 

acre-feet

785 

369 

194

29,940

184 

173 

307 

1,430 

17,670 

4,220 

926 

369 

914

27,540

a Ho gage-height record; discharge computed on basis of records for Duchesne Hlver near Tabiona 

and Rock Creek near Mountain Home.

b Stage-discharge relation affected by ice.

9-232 February 1936
GREEN RIVER BASIN 135

Duchesne River near Tabiona, Utah

Location.- Water-stage recorder, lat. 40°18', long. 110°36', in SWi sec. 17, T. 2 S.,

 R. 6 W., Uinta meridian, at bridge on State Highway 35, 5J miles upstream from Rock 

Creek and 8 miles southeast of Tabiona.

Drainage area.- 352 square miles.

Records available.- January 1919 to September 1940.

Average discharge.- 21 years, 205 second-feet.

Extremes.- Maximum discharge during year, 1,060 second-feet May 16 (gape height, 6.25

 feet); minimum, 50 second-feet July^Sl.

1919-40: Maximum discharge observed, 2,500 second-feet June 13, 1921; minimum 

recorded, 27 second-feet Oct. 17, 1934.

Remarks.- Records good except those for periods of ice effect, which are fair. Several 

diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

SI

Oct.

105

109

113

156

142

131

123

125

119

115

115

115

115

115

115

115

115

113

113

109

109

109

105

102

104

109

111

109

111

109

1051

HOT.

95

95

93

95

95

98

98

97

98

95

93

93

93

93

90

87

86

86

87

90

90

90

92

87

86

88

92

90

86

88

Dec.

98

98

93

93

90

88

93

93

92

90

90

84

87

87

87

92

87

87

87

87

84

84

86

87

84

81

b78

b80

b82

b86

b90

Jan.

88

S7

92

87

90

86

S2

90

90

88

87

90

81

hSO

b78

b78

b80

b78

b75

b78

b80

b78

hSO

hSO

b84

h86

b90

b92

h88

h86

h88

Feb.

b90

38

84

84

SI

hSO

h82

SI

b80

b80

82

80

hSO

b78

b80

h82

81

hSl

81

81

84

86

84

82

82

87

87

87

88

-

Month

Calendar year 1939 ......................

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

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

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

Water year 1939-4

Mar.

90

82

S4

86

86

82

81

87

86

84

82

78

81

78

80

84

84

81

82

84

87

90

92

98

100

100

102

102

95

92

93

Apr.

93

93

88

90

92

92

92

88

88

90

88

87

86

97

105

105

98

97

107

119

125

129

136

147

171

168

149

145

129

107

Seoondfoot-days

3,561

2,746

2,725

56,243

2,617

2,403

2,713

3,301

16,420

4,463

2,318

1,368

3,053

48,188

May

97

98

113

161

192

200

197

242

352

499

644

751

854

854

906

001

June

355

325

302

268

255

245

214

203

189

173

159

138

127

111

100

90

 )46 | "4

793

715

688

595

605

589

563

574

589

514

444

409

384

Mmr^Tffiim

156

98

98

769

92

90

102

171

991

355

123

88

181

991

78

82

76

75

71

72

35

90

105

104

102

107

~

Jvly

123

113

102

93

SS

84

80

75

76

3Q

78

76

76

74

75

75

78

74

72

70

66

&( 

62

60

60

53

53

58

57

57

54

Minimum

102

86

78

55

75

78

73

86

97

71

54

53

60

53

Aug.

53

53

54

55

55

56

56

55

56

54

54

55

56

63

66

62

61

60

66

60

63

63

59

88

71

68

62

61

61

61

61

Mean

115

91.5

87.9

154

84.4

82.9

37.5

110

530

149

74.8

60.3

102

131

Sept.

60

62

90

SI

80

72

71

71

68

66

66

68

80

86

S2

75

78

88

106

177

140

127

129

125

127

125

123

178

171

1S1

~

Run-off in 

ao re-feet

7,060

5,450

5,400

111,600

5,190

4,770

5,380

6,550

32,570

8,850

4,600

3,700

6,060

95,580

b Stage-discharge relation affected by ice.

9-232 February 19S6

UNITED STATES DEPAP^MEHT OF THE INTERIOR 

Qeolog il Surrey
136 GREEN RIVER BASINDuchesne River at Duchesne, Utah

Location.- Water-stage recorder, lat. 40°09'55", long 11O°23'50", In SWiNEi sec. 1, T. 

4 S., R. 5 W., Ulnta meridian, at Duchesne, half a mile upstream from Strawberry 

River.

Drainage area.- 660 square miles.

Records available.- December 1917 to September 1940.

Average discharge.- 23 years, 371 second-feet.

Extremes.- Maximum discharge during year, 2,330 second-feet May 16 (gage height, 4.35 

reet; minimum, 49 second-feet Sept. 2.

1917-40: Maximum discharge observed, 4,420 second-feet June 10, 1922 (gag« 

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 above station, for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

Z

3

4

6

6

7

8

9

10

11

12

IS

14

16

16

17

18

19

80

21

28

tts

24

25

26

27

28

29

SO

31

Dot.

160

173

186

243

243

213

206

206

206

189

1S2

179

179

179

179

179

179

182

176

163

160

160

153

138

136

147

147

144

147

lor.

144

141

135

129

132

132

132

132

129

132

117

126

126

123

183

117

114

114

120

129

132

132

129

129

126

126

Dec.

144

150

147

144

144

135

138

141

13S

138

13S

135

129

13S

13S

144

144

141

126

120

129

120

117

ISO

144

,,,

Jan.

206

193

176

173

169

163

141

144

176

166

157

153

141

109 '

> b!60

Feb.

X

 b!60

4

153

166

157

157

157

163

itt

1501 135 141?

117 163

123

166

196|/

166

_

-

Month

March..". ....... ...... .

Hay.......................................

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

Water year!939-4C

Mar.

166

150

147

147

141

132

135

138

141

138

147

135

129

135

135

135

13S

138

135

135

135

138

138

144

150

153

163

160

157

150

147

Apr.

150

153

147

141

129

117

111

111

117

120

117

114

106

111

129

141

129

114

126

141

150

160

157

173

199

210

196

189

166

141

-

Seoondfoot-days

4,251

90,705

3,155

5,030

81,130

*«y

126

123

14<

19<

254

27S

see

339

464

698

991

128C

1500

164C

1820

2050

193C

166C

144(

1300

128C

1100

UK

114C

HOC

1110

use

1050

S5i

77!

748

Marl mum

196

1,200

203

377

2,060

June

698

66C

694

526

488

447

419

3S7

377

353

339

31£

303

28S

254

239

28C

803

1SJ

179

163

157

141

132

147

141

16C

151

15C

163

-

July

203

18S

157

141

132

123

111

106

95

103

100

97

95

92

92

95

111

111

109

97

92

84

79

76

71

68

68

68

68

66

63

Minimum

106

53

T ^Q

T 9^

63

51

51

Aug.

56

56

63

61

63

68

73

71

ee

79

73

6]

se

63

71

76

K

6«

71

73

63

7e

76

84

91

9J

84

6(

5£

ee

53

Mean

137

248

102

168

222

Sept.

61

51

76

103

126

109

100

97

92

89

81

81

98

109

106

96

102

144

344

308

303

270

846

817

210

213

203

278

377

353

-

Run-off In 

acre-feet

8,430

179,900

ft AA/\

6,260

9,980

160,900

b Stage-discharge relation affected by ice.

-"^2 February 1936

TOUTED STATES DEPAPm¥ENT OF THE INTERIOR 

Qeolog. il Surrey
GREEN RIVER BASIN 137

Duchesne River at Myton, Utah

Location.- Water-stage recorder, lat. 40°12 f , long. 110°03', In NWi s<sc. 25, T. 3 S., R. 

2 w., Ulnta meridian, at Myton, 3 miles downstream from Lake Fork.

Drainage area.- 2,750 square miles.

Records available.- October 1899 to November 1910, July 1911 to September 1940.

Average discharge.- 32 years (1899-1902, 1911-40), 630 second-feet.

Extremes.- Maximum discharge during year, 1,980 second-feet Sept. 29 (gage height, 3.98 

reet); minimum, 3 second-feet July 27.

1899-1940: Maximum discharge observed, 12,800 second-feet June 10, 1922 (gage 

height, 7.94 feet), from rating curve extended above 8,000 second feet; minimum, less 

than 1 second-foot July 16, 1931, and on several days In August an-J September 1934.

Remarks.- Records good except those for period of Ice effect, which are fair. Large 

diversions above station for Irrigation. Flow affected by reservoirs above station.

Discharge, in second-feet, water year October 1939 to Septenbe- 1940

Day

1

e

s

4 

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

80

81 

88 

83 

84 

85

86 

87 

88 

89 

90 

51

Oct.

166 

144 

167 

275 

S09

294 

270 

275 

284 

265

232 

218 

218 

214 

209

206 

201 

201 

201 

218

196 

184 

196 

201 

192

2O9 

218 

209 

192 

188 

184

 ov.

175 

167 

162 

129 

144

14S 

144 

152 

152 

148

140 

140 

148 

152 

166

148 

144 

159 

180 

205

223 

223 

218 

227 

218

814

237 

246 

237 

214

Dee.

218 

246 

237 

227 

227

214 

21S 

227 

223 

223

205 

184 

175 

192 

192

201 

241 

237 

201 

214

256 

223 

192 

246 

255

205 

176 

156 

196 

1)240 

b270

Jan.

(*) 

> 1)240

Feb.

> b250 

(*)

Month

Dot 

 o-s

Dec

C

Jaa 

Fet 

Max

Apr

sJill

Au« 

Sej

1

raary

 vam... ............. ....................

ater yearl939-4(

Mar.

b420 

b410 

MOO 

U380 

b360

335 

520 

330 

351 

304

304 

270 

241 

260 

270

289 

2S9 

265 

241 

237

218 

196 

192 

171 

171

171 

180 

192 

184 

171 

159

Apr.

156 

159 

156 

140 

122

105 

102 

98 

137 

167

159 

148 

140 

133 

156

218 

227 

175 

175 

167

156 

175 

119 

105 

83

102 

122 

119 

133 

83

Seoondfoot-days

6,725 

5,340 

6,715

109,486

7,440 

7,250 

8,281 

4,237 

25,357 

6,745 

237 

159 

6,172

84,668

»ay

66 

59 

54 

54

171

346 

265

305 

270 

481

745 

1,060 

1,280 

1,410 

1,500

1,660 

1,700 

1,580 

1,440 

1,270

1,130 

992 

936 

944 

944

904 

976 

912 

775 

647 

681

Maximum

309 

246 

270

1,200

420 

227

1,700 

556 

20 

* 9 

1,230

1,700

June

556 

543 

493 

428 

394

394 

3S9 

37S 

346 

314

255 

223 

209 

188 

156

122 

95 

80 

72 

49

44

78 

340 

280 

105

33 

95 

66

8 

12

July

80 

12 

9 

8 

11

9 

8 

9

7 

5

5 

6 

6 

6 

6

6 

7 

9 

10 

9

8 

9 

11 

8 

6

4 

4 

4 

4 

5 

6

Aug.

5 

5 

5 

6 

5

6 

5 

5 

5 

5

4 

4 

4 

4 

4

4

4 

5 

4 

4

4 

4 

6 

9 

5

6 

8 

6

5 

6 

7

Mini mm Mean

144 217 

12f 178 

15C 217

V 300

240 

250 

159 267 

63 141 

54 S18 

f 225 

f 7,6 

t 5.1 

t 206

' 232

Sept.

4 

4 

92 

86 

61

38 

36 

29 

29 

22

20 

17 

22 

79 

196

89 

49 

S6 

207 

234

660 

340 

294 

276 

237

241 

223 

415 

1,230 

868

Run-off in 

aore-feet

13,340 

10,590 

13,320

217,200

14,760 

14,380 

16,430 

8,4OO 

50,290 

13,380 

470 

315 

12,240

167,900

«Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

9-838 February 19S6

TOUTED STATES DEPAHMF"" OF THB XHTBRIOR 

Geological turrey
138 GREEN RIVER BASIN

Rock Creek near Mountain Home, Utah

Location.- Water-stage recorder, lat. 40°30', long. 110°35', In SWi sec. 9, T. 1 N., R. 

6 W., Ulnta meridian, at Lower Stlllwater 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.

Drainage area.- 149 square miles.

Recorls available.- November 1337 to September 1940.

Extremes.- Maximum discharge during year, 1,200 second-feet May 16 (gage height, 4.71 

feet); minimum, 7 second-feet Mar. 13, probably caused by Ice jams above station.

1939-40: Maximum discharge observed, 1,790 second-feet June 4, 1930 (gage 

height, 11.19 feet, site and datum then In use); minimum discharge, that of Mar. 13, 

1940.

Remarks.- Records good except those for periods of Ice effect, which are fair. No dlversions above station.

Cooperation.- Water-stage rectrder graph and seven discharge measurements furnished by 

Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

74 

85 

89 

108 

99

100 

97 

95 

92 

86

85

81 

82 

83 

81

80 

79 

79 

75 

73

73 

71 

71 

70 

72

71 

68 

64 

70 

63 

68

Hov.

66 

64 

63 

62 

63

61 

57 

57 

62 

48

55 

55 

53 

53 

50

46 

47 

45 

44 

49

50 

47 

50 

48 

47

46 

49 

48 

44 

42

Dec.

46 

43 

42 

43 

43

42 

42 

43 

43 

43

43 

36 

40 

39 

37

37 

37 

35 

30 

33

31 

39 

38 

30 

28

27 

b26 

b35 

b37 

b29 

b31

Jan.

33 

33 

32 

33 

33

39 

35 

33 

33 

34

34 

33 

b32 

b30 

b39

b31 

b30 

b38 

b28

b39

b30 

b29 

b38 

b39 

b30

b33 

34 

34 

33 

33 

34

Feb.

34 

34 

34 

34 

34

34 

35 

34 

34 

b34

b33 

32 

b31 

b33 

b33

33 

34 

34 

33 

33

33 

34 

33 

34 

34

35 

36 

36 

37

Month

Got 

NOT 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

ua

11.....................................

ater year 1939-4C

Mar.

37 

33 

37 

34 

36

34 

34 

36 

34 

36

36 

34 

33 

32 

34

35 

36 

35 

37 

37

38 

39 

40 

43 

44

53 

53 

45 

42 

43 

42

Apr.

43 

44 

42 

43 

43

44 

41 

43 

43 

44

44 

43 

46 

53 

60

56 

51 

55 

64 

79

88 

90 

96 

102 

108

106 

99 

95 

88 

81

Secondfoot-days

2,481 

1,569 

1,106

44,955

977 

980 

1,179 

1,951 

17,017 

6,237 

2,276 

1,436 

1 3,100

40,289

May

80 

96 

129 

173 

178

163 

183 

330 

285 

413

563 

696 

81E 

836 

950

1,070 

1,000 

90S 

806 

723

712 

623 

669 

685 

669

69C 

669 

E76 

496 

474 

477

Maximun

108 

66 

46

673

35 

37 

53 

108 

1,070 

462 

124 

54 

234

1,070

June

463 

434 

386 

338

317

380 

258 

252 

234 

222

222 

217 

215 

208 

198

187 

172 

163 

157 

151

144 

136 

129 

122 

116

109 

106 

100 

96 

106

July

124 

111 

103 

97 

95

88 

85 

82 

80 

77

75 

70 

71 

69 

69

79 

92 

79 

77 

68

65 

61 

58 

54

53

50 

49 

49 

48 

49 

49

Minimum

63 

42 

35

35

28 

31 

33 

41 

80 

96 

48 

38 

39

25

Aug.

49 

48 

47 

47 

45

46 

50 

51 

51 

49

46 

44 

44 

44 

45

47 

44 

41 

44 

50

49 

49 

46 

47 

50

54 

47 

43 

42 

39 

38

Mean

80.0 

52.3 

35.7

123

31.5 

33.8 

38.0 

64.4 

549 

208 

73,4 

46.3 

103

110

Sept.

39 

39 

48 

72 

79

62 

61 

61 

59 

60

58 

60 

71 

80 

76

68 

70 

96 

106 

176

180 

178 

155

131 

134

128 

119 

200 

234 

210

Run-off In 

acre-feet

4,920 

3,110 

2,190

89,140

1,940 

1,940 

2,340 

3,830 

33 ,750 

12,370 

4,510 

2,850 

6,150

79,900

b Stage-discharge relation affected by Ice.

" -232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeolofc. al Survey
GREEN RIVER BASIN 139

Strawberry River at Duchesne, Utah

Location.- Staff gage, lat. 40°10', long. 110°25', in SWiNEi sec. 2, T. 4 S., R. 5 W., 

Uinta meridian, at bridge three-quarters of a mile west of Duchesn3 and It miles 

upstream from mouth.

Drainage area.- 1,040 square miles.

Records available.- June 1908 to November 1910, March 1914 to Septembsr 1940.

Average discharge.- 26 years (1914-40), 165 second-feet.

Extremes.- Maximum discharge observed during year, 810 second-feet Seot. 15 (gage 

height, 6.3 feet); minimum observed, 14 second-feet Aug. 12-15, 22, 23.

1908-10., 1914-40: Maximum discharge observed, 3,230 second-feet Ka.y 27, 1922, 

from rating curve extended above 1,500 second-feet; minimum observsd, 1 second-foot 

on several days in July 1931.

Remarks.- Records fair. Gage read twice daily. Diversions above station for irrigation. 

Water diverted from Strawberry Valley Reservoir (capacity, 250,000 acre-feet) to 

Great Salt Lake Basin.

Discharge, in second-feet, water year October 1939 to September 1940

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.

50

54

56

89

90

65

59

59

64

57

56

54

54

53

52

53

50

49

49

52

53

53

53

50

53

53

53

53

53

53

53

HOT.

53

54

53

53

54

54

54

54

54

56

56

57

58

58

57

64

64

65

65

65

70

68

71

70

68

70

68

66

62

68

~

Dec.

64

66

64

b64

b66

68

66

71

68

71

66

72

64

71

74

71

79

89

84

79

80

77

72

64

65

b64

b62

b62

b64

b68

b70

Jan.

(*)

. b60

Feb.

. b60

(*)

t -

-

Month

Hovember. ..... .. ....

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

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

toy.. .....................................

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

Water year 1939-4

Mar.

blSO

b!35

142

142

119

98

91

86

74

71

70

62

58

61

65

65

66

65

61

61

64

68

70

71

71

71

80

82

76

71

71

Apr.

71

71

71

71

71

71

71

71

71

72

74

79

86

98

123

121

113

117

111

111

113

115

115

123

131

140

146

140

133

131

-

Secondfoot-days

1 745 _ ' OQ

2,165

33,744

1,860

1 740

2)517

3,031

3,925

1,436 

854

648

2,911

24,661

Hay

129

129

123

117

142

144

155

148

146

148

153

160

157

155

153

151

146

142

131

123

119

115

111

104

96

94

92

89

87

86

80

Maximum

90

71

89

800

142

146

160

72

65

37

364

364

June

72

65

62

61

59

59

58

57

57

57

54

50

48

44

39

38

38

44

44

46

48

48

46

41

38

37

35

31

28

32

July

39

38

35

34

33

28

27

26

25

24

27

26

26

23

20

22

65

38

31

29

28

27

26

21

17

19

19

22

20

20

19

Minim""1

49

53

62

20

58

71

28

17

14

19

14

Aug.

19

18

15

19

18

19

20

20

20

18

18

15

15

14

15

17

18

18

29

19

20

15

37

30

32

32

26

27

24

21

20

Mean

56,3

61.0

69.8

92.4

60

60

81 £

101

127

47.9

27.5

20 .9

97.0

67.4

Sept.

19

19

36

47

42

40

38

42

38

38

36

109

102

102

364

71

68

142

74

246

274

107

113

76

66

62

61

76

266

135

Run-off in 

acre-feet

3,460

3 ,630

4,290

66,940

3,690

3,450

4 990

6,010

7,790

2,850

1 ,690

1,290

5,770

48,910

«Wlnter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

9-232 400453 O - 41 - 10

UNITED STATES DEPAF"1MEHT OP THE IMTERIOR 

Oeolog. J. Surrey
140 GREEN RIVER BASIN

Currant Creek near Fruitland, Utah

Location.- Water-stage recorder, lat. 40°12', long. 110°54', in SEi 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 1940.

Extremes.- Maximum discharge during year, 189 second-feet Sept. 20 (gage height, 2.22 

feet;; minimum daily, 5 second-feet Aug. 19.

1935-40: Maximum discharge observed, 370 second-feet May 16, 1938 (gfge height, 

3.15 feet); minimum daily, that of Aug. 19, 1940.

Remarks.- Records excellent except those for periods of ice effect, which are fair. 

Currant Creek feeder canal, constructed by Bureau of Reclamation in 1936, diverts water from the headwaters of Currant Creek to Strawberry Reservoir, from which 

It is further diverted through Strawberry tunnel to the Great Basin for Irrigation 

in Strawberry Valley Project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

S

6

7

8

9

10

11

12

IS

14

IS

Ifi

17

18

19

80

81

P.P,

83

84

85

8fi

87

88

89

30

51

Dot.

20

21

22

32

28

26

24

24

24

23

21

21

21

20

20

20

20

20

20

20

20

20

21

21

21

24

23

22

22

22

21

HOT.

21

21

21

21

21

21

21

21

21

21

21

20

21

21

20

20

18

18

18

20

20

19

20

20

19

20

21

21

21

19

-

Dec.

21

21

21

21

20

21

21

21

20

20

20

17

18

19

18

20

20

17

14

18

16

16

16

18

16

14

b!3

blS

b!6

b!8

b20

Jan.

21

21

21

21

21

IB

16

22

21

22

21

21

18

b!7

b!6

b!5

b!6

b!5

b!2

b!4

b!6

b!4

b!5

b!5

b!6

b!8

b!8

b!9

b!8

b!8

b!8

Feb.

b!9

b20

b!9

b20

b!9

b!9

b!9

b20

b!9

b!9

b20

b!9

b!7

b!8

b!9

b!9

b20

b20

b20

b21

b20

23

22

21

21

23

24

24

24

_

-

Month

Oct

Hnf

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

toy.. .....................................

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

Water yeari939-4(

Mar.

24

21

23

21

23

21

21

22

23

23

21

20

20

20

21

23

24

22

24

24

26

28

30

32

34

35

3«

36

Si

31

32

Apr.

32

32

29

28

28

29

29

29

3O

32

32

32

34

40

44

42

38

39

45

52

64

54

53

62

76

70

59

55

5C

4«

-

Seeondfoot-days

664

561

13,439

586

349

469

8,604

May

47

62

64

77

71

66

66

68

74

77

74

71

7C

66

66

66

6]

5£

55

53

6C

4(

4^

4£

44

44

4<

4S

4-

4:

38

MffTfipumn

32

21

144

og

21

36

77

June

36

35

34

34

34

36

33

30

29

28

27

24

24

23

21

20

19

18

18

17

16

16

16

14

14

14

14

13

13

14

_

July

21

20

16

14

14

13

11

10

10

9

9

9

S

9

10

11

14

14

14

14

12

1C

10

S

9

8

8

7

£

e

9

Minimum

20

13

10

7

8

5

Aug.

9

8

8

8

8

8

8

9

9

8

8

7

7

7

7

8

8

7

E

7

6

8

e

1C

1C

1C

1C{

E

e

Mean

27.1

18.1

3-«,8

T7 O

91 "*

11.3

15.6

21? .6

Sept.

8

8

10

14

16

14

14

14

12

12

12

12

16

15

14

14

16

18

18

35

21

18

17

14

14

14

14

27

2C

16

-

Run-off in 

acre-feet

1,360

1,110

26,640

692

930

17,070

b Stage-discharge relation affected by ioe.

9-838 February 1936

UNITED STATES DEPAPTffiHT OF THE INTERIOR 

Qeolog. il Survey
GREEN RIVER BASIN 141

Ulnta River near Neola, Utah

Location.- Water-stags recorder, lat. 40°32', long. 110°04', In SWi sec. 25, T. 2 N., R. 

2 w., Uinta meridian, 600 feet downstream from bridge, 1 mile upstream from Pole 

Creek, and 7 miles north of Neola.

Drainage area.- 181 square miles.

Records available.- July 1921 to September 1927 (fragmentary), September 1929 to September 1940.

Average discharge.- 12 years (1925-26, 1929-40), 154 second-feet.

Extremes.- Maximum discharge during year, 714 second-feet May 10 (gage neight, 2.41 

feet); minimum discharge recorded, 39 second-feet Mar. 14 (during period of Ice 

effect).

1929-40: Maximum discharge, 2,240 second-feet June 5, 1938 (gage height, 3.33 

feet, site and datum then In use), from rating curve extended above 1,300 secondfeet; minimum discharge recorded, 38 second-feet Sept. 17-19, 1933, but may have 

been less during periods of ice effect.

Maximum discharge known, more than 3,000 second-feet June 9, 1922 (not determined more exactly because of unstable channel conditions).

Remarks.- Records good except those for periods of Ice effect, which are fair. Water 

diverted from Pole Creek and used at Uinta Power & Light Co.'s plant enters river 

500 feet above station. Summer flow slightly regulated by storage In several small 

mountain lakes and reservoirs.

Discharge, In second-feet, inter year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

IS

13

14

IS

16

17

18

19

80

81

88

83

84

85

86

87

88

29

30

31

Dot.

200

211

208

226

211

214

202

197

191

ISO

175

170

162

162

155

153

148

150

141

141

141

139

137

134

132

130

128

124

122

119

121

BOY.

121

119

117

115

113

110

108

104

108

93

99

98

96

94

90

86

88

82

85

88

86

86

88

85

85

83

88

86

82

82

-

Dec.

83

82

82

80

82

80

80

79

80

79

77

73

74

73

69

73

72

65

64

64

61

b60

b59

b61

b62

b60

b60

b57

b60

b64

b68

Jan.

70

69

69

67

66

66

60

67

67

65

65

66

65

b63

b61

b59

b59

b68

b56

b57

b68

b57

b57

b59

b61

b62

b62

61

61

60

60

Feb.

60

60

61

61

60

61

61

60

b59

60

60

b59

bS6

b57

b68

b68

b57

b68

b68

b5S

b57

b59

b60

60

61

61

62

62

62

_

-

Month

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

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

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

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

Ally ......................................

Water year 1939-413 ......................

Mar.

60

69

60

68

60

68

58

59

59

60

59

56

b54

b55

56

60

60

60

61

61

62

65

65

65

66

66

74

67

64

62

61

Apr.

62

66

64

61

61

61

60

60

60

60

60

59

60

65

69

66

64

70

110

121

130

141

160

168

180

166

150

141

132

122

-

Seoondfoot-days

5,024

2,865

2,183

56,200

3.^933

1,726

n OOQ

2*838

10,168 

5,152

3,687

c^58S 

5,055

45,003

May

121

137

235

351

324

27S

324

362

489

575

560

466

480

398

440

475

427

332

310

278

278

254

254

248

251

288

285

261

229

217

241

Mtt-^mi .

226

121

83

822

70

62

74

160

575 

238

162

103

494

575

June

238

238

214

197

202

178

165

178

166

160

165

172

172

183

186

178

176

168

168

172

168

162

158

153

146

144

137

137

139

146

Ju]-

162

146

139

144

134

186

124

121

117

117

113

117

117

117

117

122

124

130

124

119

110

108

106

106

99

94

96

93

83

82

80

klnlmm

119

OOoc

57

_

56

56

64

COov

121 

137

80

73

70

64

Aug.

79

79

82

S6

88

88

91

91

86

85

80

79

77

79

80

80

77

73

80

82

82

80

88

86

96

103

91

85

79

76

74

Mean

168

95.5

70.4

151

62.4

59.5

61.0

94*6

3S8

1*79 J. I A

116

83.3

168

183

Sept.

70

72

82

101

128

103

96

94

94

91

90

101

115

121

113

106

110

150

175

229

264

238

220

200

200

208

188

370

494

432

-

Run-off In 

acre-feat

9,960

5,680

4,330

109,600

3,830

3,420

3,760

5,630 

20,170

10,220

7,110

5,12C 

10,030

89,260

b Stage-discharge relation affected by lee.

9-838 February 1936

TOTTED STATES DEPAPTIEHT OF THE IHTERIOR 

Oeolog al Survey
142 GREEN RIVER BASIN 

Whlterocks River near Whiterocks, Utah

Location.- Water-stage recorder, lat. 40°34', long 109°56', in SWi sec. 18, T. 2 N., R. 

IE., Uinta meridian, 25 feet downstream from bridge, three-quarters of a mile upstream from heading of United States Whiterocks and Farm Creek canals, and 6i miles 

north of Whiterocks. *

Drainage area.- 115 square miles.

Kecords available.- August 1921 to September 1928, February 1930 to September 1940.

September 1899 to August 1904 and April 1907 to November 1910 at site nearby. November 1917 to June 1321, at site downstream from point of diversion of United States 

Whiterocks canal and above that of Farm Creek canal; records equivalent if flow of 

Whiterocks canal is included.

Average discharge.- 16 years (1899-1903, 1908-10, 1930-40), 118 second-feet.

extremes.- Maximum -Us charge during year, 535 second-feet May 3 (gage height, 3.00

feet); minimum discharge recorded, 21 second-feet Mar. 6, but may have been less during periods of ice effect.

1921-28, 1930-40: Maximum discharge, 2,750 second-feet June 21, 1922, from rating 

curve extended above 1,700 second-feet; minimum discharge recorded, 10 second-feet 

Dec. 5, 1933 (revised), but may have been less during periods of ice effect.

Remarks.- Records good except those for periods of ice effect, which are fair. Flow 

slightly regulated by storage in small mountain lakes.

Rating table, water year 1939-4O, except periods of Ice effect (gage height, In feet, 

and discharge, In second-feet)

0.9O 

1.00 

1.10 

1.20

20

26

33

41

1.40 

1.6O 

1.80 

2.OO

121

165

2.20 

2.40 

2.6O

218 

2S1 

355

Discharge, in second-feet, water year October 1939 to September 194O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17ie

1920

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

125 

127 

13S 

147 

140

138 

138 

129 

127 

123

117 

115 

115 

115 

115

112 

110 

106 

102 

97

92 

89 

88 

85 

82

82 

80 

78 

76 

73 

78

Nov.

75 

71 

70 

70 

68

67 

65 

62 

62 

53

56 

55 

53 

52 

50

48 

49 

47 

4S 

52

50 

4S 

49 

48 

47

47 

49 

47 

44 

46

Dec.

49 

46 

46 

46 

46

46 

45 

44 

43 

44

43 

39 

43

40 

41

42 

39 

37 

36 

b40

b38 

b36 

b35 

b36 

b37

b36 

b35 

b33 

b35 

b38 

b40

Jan.

b42 

b43 

b42 

40 

39

38 

b34 

b37 

b36 

35

36 

34 

b33 

b31 

b29

b30 

b30 

b28 

b25 

b27

b27 

b25 

b26 

b27 

b27

b28 

b30 

b30 

b30 

b29 

b30

Feb.

b31 

31 

32 

32 

b31

b29 

b30 

30 

b29 

b29

b27 

b25 

b23 

b24 

b25

b25 

b25 

b26 

b27 

b26

b25 

b27 

28 

2S 

28

30 

30 

30 

30

Month

Oot 

Nev 

Dec

C

Jan 

Feto 

Mar 

Apr 

May

Jun

Jul 

Aug 

Sep

W

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

ua

11.....................................

ater year 1939-4C

Mar.

30 

29 

30 

27 

28

2S 

29 

28 

27 

b27

b26 

b24 

bS5 

b26 

b27

28 

29 

30 

31

31

32 

32 

33 

33 

34

34 

39 

34 

31 

52 

32

Apr.

32 

35 

32 

34 

33

33 

32 

32 

32 

32

32 

31 

34 

39 

40

39 

35 

38 

52 

71

112 

127 

142 

17O 

175

149 

121 

97 

86 

75

Secondfoot-days

3,333 

1,64S 

1,254

34 ,747

998 

S13 

9S6 

1,992 

6,184 

2,S06 

1,506 

1,294 

3,O3S

25,792

May

71 

108 

272 

344

281

239 

233 

242 

299 

328

299 

268 

281 

233 

233

221 

212 

185 

168 

156

154 

144 

132 

125 

123

132 

149 

142 

142 

136 

132

Mn-^imim

147

75 

49

500

43 

32 

39 

175 

344 

127 

65 

70 

310

344

June

127 

123 

121 

119 

121

123 

123 

112 

104 

99

96 

94 

92 

91 

89

89 

88 

86 

8S 

S6

8S 

S8 

85 

82 

SO

79 

60 

57 

56 

60

July

65 

65 

5S 

53 

52

48 

46 

50 

47 

50

50 

50 

49 

48 

49

54 

5S 

56 

52 

50

47 

46 

45 

43 

43

43 

41 

39 

37 

37 

35

Minimum

73 

44 

33

_

25 

23 

24 

31 

71 

56 

35 

32 

43

23

Aug.

34 

33 

33 

38 

39

3S 

40 

39 

35 

35

34 

33 

32 

33 

39

39 

37 

35 

39 

44

43 

44 

56 

53 

60

70 

56 

50 

46 

44 

43

Kean

1OS 

54.9 

4O.5

95.2

32.2 

28.0 

29.9 

66.4 

199 

93,5 

48.6 

41.8 

101

7O.5

Sept.

43 

43 

48 

5S 

83

62 

57 

55 

55 

56

53 

58 

64 

66

64

57 

60 

94 

117 

125

154 

127 

115 

108 

115

134 

127 

242 

31O 

288

Run-off in 

acre-feet

6,610 

3,27O 

2,490

68,92O

1 S 98O 

1,610 

1,840 

3,950 

12,270 

5,57O 

2,99O 

2,57O 

6,O3O

51,180

b Stage-discharge relation affected by ice.

9-232 February 1936

UNITED STATES DEPAP*"MENT OP THE IHTERIOR 

Qeoleg al Survey
GREEN RIVER BASIN 14, 

White River near Meeker, Colo.

Location.- Water-stage recorder, lat. 40°02', long. 107°52' in sec. 30, T. 1 N., R. 93 

W-, 1 mile upstream from Curtis Creek and 3i miles east of Meeker.

Drainage area.- 762 square miles.

Records available.- May 1901 to October 1906 and May 1910 to November 1913 (at site 2$ 

 miles downstream), and October 1933 to September 1940 in reports of Geological Survey. 

May 1901 to October 1906 and May 1910 to September 1940 in reports of State engineer.

Average discharge.- 35 years, 642 second-feet.

Extremes.- Maximum discharge during year, 2,740 second-feet May 13 (gage height, 3.52 

feet); minimum daily, 202 second-feet Aug. 18, 19.

1901-6, 1910-40: Maximum daily discharge, 6,070 second-feet June 16, 19E1; minimum daily, 112 second-feet July 17, 1934.

Remarks.- Records excellent except those for periods of ice effect, which are good.» 

Diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

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

SO

31

Oct.

345

335

335

350

375

370

355

370

395

375

370

360

360

355

350

345

340

340

335

335

330

335

325

320

320

355

355

335

345

330

325

HOT.

325

335

330

325

330

335

325

320

335

310

310

325

325

315

310

300

296

296

282

296

315

305

310

310

310

310

315

300

310

296

Dec.

310

305

296

300

296

296

300

300

300

300

296

292

274

300

282

296

292

292

216

232

269

224

282

269

274

248

248

244

292

300

315

Jan.

305

296

300

292

292

287

282

269

300

292

292

300

287

282

244

278

315

305

252

b310

b320

b290

b260

b240

b240

b250

b250

252

b280

b290

b290

Feb.

b290

b280

274

b280

282

278

296

2S2

278

282

287

260

264

296

296

282

244

b250

b300.

b300

305

287

300

296

292

292

292

278

296

_

Month

Calendar year 1939. .....................

March, ....................................

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

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

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

Water year 1939-4 0. .....................

Mar.

300

305

300

296

296

300

292

296

300

300

300

296

274

248

269

278

296

278

287

287

296

305

315

330

335

345

355

360

325

310

335

Apr.

355

365

330

320

320

335

335

320

325

340

325

300

330

365

423

459

429

447

519

560

588

637

623

725

822

922

938

808

725

644

-

Seoondfoot-days

10,770

9,406

8,740

185,501

8,742

8,239

9,409

14 934

53,834

31,149

9 882

7^626

8,886

181,617

May

581

658

815

1,300

1,530

1,570

1,630

1,520

1,900

2,150

2,260

2,320

2,540

2,320

2,120

2,140

2,240

1,790

1,750

1,790

1,720

1,480

1,480

1,560

1,620

1,730

1,860

1,750

1,810

1.890

2,010

Maximum

395

335

315

1,960

320

305

360

938

2,540

2,240

483

335

370

2,540

June

2,120

2,240

2,240

2,050

1,890

1,630

1,320

1,240

1,110

979

930

930

962

938

922

875

830

762

725

718

695

665

651

609

567

539

539

513

483

477

-

July

477

483

453

435

423

400

390

395

345

320

320

310

305

292

287

274

296

300

292

269

269

269

252

248

232

228

216

269

282

282

269

Aug.

252

252

256

252

248

232

236

248

240

236

232

224

216

213

210

216

206

202

202

224

224

232

236

260

300

335

325

292

274

269

282

MiTi^nnim Mean

320 347

282 314

216 282

200 508

240 282

244 284

248 304

300 498

581 1,737

477 1,038

216 319

SOS 246

269 296

202 496

Sept.

274

274

282

282

274

278

282

274

278

287

282

282

310

305

287

269

274

292

292

282

296

330

315

310

305

335

320

305

340

370

-

Run-off in 

acre-feet

21,360

18,660

17,340

367,900

17,340

16,340

18,660

29,620

106*800

61,780

19,600

15,130

17,630

360,300

b Stage-discharge relation affected by ice.

9-232 February 1936

UNITED STATES DEFA^ItEST OF THE INTERIOR 

Geolog al Surrey
144 GREEN RIVER BASIN

White River near Watson, Utah

Location.- Water-stage recorder, lat. 39°58', long. 109°10', in sec. 2, T. 10 f., R. 24

 E., Salt Lake meridian, Just downstream from Evacuation Creek and 7 miles north of 

Watson.

Drainage area.- 4,020 square miles.

Records available.- April to October 1906 (published as White River near Dragor. Utah),

 arid October 1933 to September 1940 in reports of Geological Survey. April 1923 to 

September 1940 in reports or State engineer of Colorado.

Average discharge.- 17 years, 753 second-feet.

Extremes.- Maximum discharge during year, 2,270 second-feet May 14 (gage height, 3.44 

feet): minimum daily, 150 second-feet Aug. 17.

1906, 1933-40: Maximum daily discharge, 8,160 second-feet July 15, 1929; minimum 

discharge, 52 second-feet July 19, 20, 1934.

Remarks.- Records good except those for periods of ice effect, which are fair. Diversions 

above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

&

6

7

8

9

10

11

12

18

14

15

16

17

18

19

20

81

82

83

84

25

86

27

28

29

90

31

Oct.

462

438

404

678

426

414

409

409

744

522

426

398

387

362

387

387

392

382

382

387

382

387

392

398

387

534

504

420

387

376

376

HOT.

370

370

370

376

376

382

376

382

376

3S7

392

376

3S2

387

387

382

376

365

354

365

370

398

387

382

376

365

360

360

360

354

-

Dec.

348

365

370

360

343

343

365

336

354

343

343

348

348

326

326

338

354

360

310

300

- 305

310

330

340

310

310

270

250

280

330

370

Jan.

400

360

370

370

360

350

330

320

360

350

340

340

330

300

280

310

340

330

320

310

340

320

290

280

330

340

350

370

390

380

380

Feb.

370

360

350

340

330

340

350

360

*361

350

340

350

340

340

350

340

330

350

380

370

380

390

410

400

390

410

420

430

450

_

-

Month

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

Uiy................. ......................

Water year 1939-40............. .........

Mar.

450

430

420

430

400

380

390

400

410

430

398

370

365

348

354

316

343

426

438

387

370

370

360

370

387

404

438

498

546

516

450

Apr.

416

444

488

515

482

454

460

449

422

416

416

410

383

372

388

438

604

532

515

526

618

702

785

834

939

1,060

1,150

1,190

1,190

1,130

-

Seoondfoot-days

10,287

227,060

28,990 

8 788

7,332 

12,306

195,430

May

1,070

988

974

1,030

1,230

1,500

1,590

1,650

1,590

1,790

1,960

2,040

2,120

2,210

2,190

1,990

1,970

2,060

1,830

1,700

1,680

1,620

1,460

1,430

1,430

1,480

1,570

1,640

1,600

1,610

1,660

Maximum

744

398

370

3,630

a 210

1,920

995 

1,310

2,210

June

1,680

1,750

1,870

1,920

1,760

1,680

1,500

1,320

1,160

1,090

1,030

946

690

848

806

771

757

708

654

618

600

600

588

554

542

498

466

449

444

471

-

July

466

394

410

400

378

361

350

335

330

310

275

265

260

245

240

240

345

315

275

275

240

225

215

210

176

192

180

255

196

210

220

HH^-timim

376

250

164

372

444

150 

260

150

AUT.

215

:

:

:

92

92

84

188

184

:

:

:

80

60

76

176

176

:

:

:

68

68

60

152

152

:

50

55

52

155

164

:

:

j

55

76

i25

356

995

i

'

;

60

:00

556

515

275

Mean

431

332

622

966

237 

410

534

Sept.

260

270

260

295

265

265

265

270

275

482

361

300

295

515

400

345

345

356

335

400

37S

564

444

410

394

427

388

482

1,010

1,310

-

Run-off in 

acre-feet

26,500

20,400

450,400

24 980

57,500

14,540 

24,410

387,600

*Wlnter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Dec. 19, 20, Dec. 22 to Mar. 10.

 232 February 1936

TOOTED STATES DEPAP-i-MEHT OP THE IBTERIOR 

Oeolog al Surrey
GREEN RIVER BASIN 145

Price River above Scofleld Reservoir, near Scofleld, Utah

Location.- Water-stage recorder, lat. 39°46', long. 111°11', In SEi rec. 18, T. 12 S., 

 R. 7 E., at mouth of canyon, 800 feet upstream from bridge, half s mile upstream from 

Pontown Creek, and 4 miles north of Scofleld.

Drainage area.- 62 square miles.

Records available.- June 1931 to September 1932 (fragmentary), October 1938 to September 

I535T

Extremes.- Maximum discharge during year, 520 second-feet May 13 (gage height, 3.00 

feet).; minimum discharge recorded, 4 second-feet Aug. 13, 14, but may have been less 

during period of Ice effect.

1931-32, 1938-40: Maximum discharge, 673 second-feet May 19, 1932; minimum discharge recorded, 3 second-feet Sept. 10-30, 1932.

Remarks.- Records fair. Small transmountaln diversions at headwaters for irrigation in 

the Great Basin.

Rating table, water year 1939-40, except period of Ice effect (gage height. In feet, 

and discharge, In second-feet)

0.3 

.4 

.5 

.6 

.7

4

7

10

15

21

0.8 

1.0 

1.2 

1.4 

1.6

26

45

65

69

119

1.8 

2.0 

2.3 

2.6 

2.9

155

199

276

369

480

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8 

8 

9 

12 

12

12 

12 

12 

12 

10

9 

9 

9 

8

e

8 

6

e

6 

8

7 

7 

7 

8 

8

8

e

8 

8 

6 

8

Nov.

8 

8 

8

e

8

7 

8 

8 

9 

10

11 

10 

12 

12 

14

13 

12 

10 

10 

10

12 

12 

12 

12 

10

10 

10 

10 

10 

12

Dec.

12 

14

11 

11 

10

10 

10 

10 

10 

10

9 

b8

Jan.

> b7

Feb. | HOT.

> b8

Month

Dot 

HOT 

Dec

C

Jan 

Fet 

Mar 

Apr

 Fui 

Jul

AU«

Sep 

« ater year 1939-40......................

 blO

20 

19 

16

Apr.

17 

15 

17 

17 

17

15 

17 

16 

18 

19

21 

24 

31 

43 

49

43 

41 

57 

80 

108

131 

134 

142 

174 

197

199 

161 

131 

119 

106

Seoondfoot-days

275 

306 

277

10,835

217 

232 

337 

2,159 

6,741 

1,274 

490 

195 

236

14,741

a No gage-height record; discharge computed on basis 

Ington and Cottonwood Creek near Orangeville. 

b Stage -discharge relation affected by ice.

May

106 

122 

183 

262 

296

305 

311 

346 

397 

441

464 

468 

480 

472 

453

430 

397 

349 

311 

279

254 

226 

204 

183 

168

170 

161 

151 

133 

119 

100

Maximum

12 

14

242

199 

480 

92 

26 

8 

15

480

June

92 

84 

79 

75 

72

67 

63 

57 

54 

51

48 

46 

42 

30 

30

30 

30 

30 

29 

28

27 

26 

26 

25 

24

22 

22 

22 

20 

23

July

26 

a26 

a24 

a22 

a21

al9 

a!8 

a!7 

a!7 

a!6

a!5 

a!5 

14 

14 

14

17 

17 

17 

17 

16

14 

14 

14 

14 

13

12 

11 

10 

10 

9 

7

Aug.

7 

6 

6 

6 

6

6 

6 

6 

6 

6

5 

5 

5 

5 

5

6 

6 

6 

6 

8

7

7 

7

e

6

7 

7 

7 

7 

6 

6

Sept.

6 

6 

7 

7

e

7 

7 

7 

7 

7

6 

7 

7 

7 

6

6 

6 

9 

9 

9

11 

15 

8 

6 

8

8 

12 

alO 

a9 

a8

Minimum Mean ^re'feeV

7 8.9 545 

7 10.2 607 

6.9 549

29.7 21,490

7.0 430 

8.0 460 

10.9 668 

15 72.0 4,280 

100 282 17,340 

20 42.5 2,530 

7 15.8 972 

5 6.3 387 

6 7.9. 472

40.3 29,240

of records for Huntington Creek near Hunt9-2S2 February 1936

UNITED STATES DEPAP"1MENT OF THE INTERIOR 

Oeolog al Survey
146 GREEN RIVER BASIN

Price River near Scofield, Utah

Location.- Water-stage recorder and concrete control, lat. 39°47', long. 111°07' , in SEi

 sec. 10, T. 12 S., R. 7 E., 1,000 feet downstream from Scofield Reservoir, 5 miles 

northeast of Scofield, and 9 miles upstream from White River.

Drainage area.- 163 square miles.

Records available.- November 1917 to September 1921 and 1925 (fragmentary), Ap~il 1926 

to September 1931, October 1938 to September 1940.

Extremes.- Maximum discharge during year, 254 second- feet (regulated), June 27, 28 (gage

 height, 2.68 feet); practically no flow at times when reservoir gates were closed.

1917-20, 1926-31, 193S-40: Maximum discharge, 1,000 second-feet on or about May 

24, 1920 (gage height, 10.4 feet, from floodmark, site and datum then in us3), from 

rating curve extended above 500 second-feet; practically no flow at times when reservoir gates were closed.

Remarks.- Records good except those for periods of no gage-height record, whlG1! are fair. 

 Flow completely regulated by Scofield Reservoir (capacity, 42,000 acre-feet). Small 

diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

£3 

24 

25

26 

27 

28 

29 

30 

31

Oot.

1 

1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

8 

12

14 

14 

14 

13 

8

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

HOT.

1

Dec.

1

Jan.

2

Feb.

> 2

Month

Oot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

lug 

Sep

W

uary

ater year 1939-4C)

Mar.

2

Apr.

2

13

53 

53 

53 

53 

72

Seoondfoot-days

85 

30 

31

17,957

62 

58 

62 

350 

4,662 

5,089 

4,895 

2,831 

131

16,286

May

72 

72 

83 

94 

95

97 

97 

118 

142 

150

152 

154 

156 

158 

160

162 

163 

165 

167 

168

168 

169 

169 

169 

169

162 

199 

203 

203 

203 

203

Maximum

14

220

72 

203 

232 

204 

182 

20

232

June

203 

203 

172 

159 

159

159 

16S 

174 

210 

193

90 

77 

84 

97 

104

104 

103 

130 

194 

194

186 

207 

213 

213 

212

212 

221 

232 

223 

194

July

169 

163 

163 

163 

169

190 

190 

185 

169 

163

163 

165 

185 

190 

189

187 

186 

170 

163 

156

108 

86 

86 

85 

79

80 

114 

187 

204 

199 

189

Minimum

)

_

72 

77 

79 

3 

3

-

Aug.

182 

174 

169 

109 

126

115 

100 

98 

81 

74

114 

143 

140 

109 

127

156 

151 

106 

82 

79

73 

70 

65 

60 

40

20 

10 

3 

10 

20 

20

Mean

2.7

1 

1

49.2

2 

2

2 

11.7 

150 

170 

158 

91.3 

4.4

50.0

Sept.

20 

20 

10 

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

Run-off in 

acre-feet

169 

60 

61

35,610

123 

115 

123 

694 

9,250 

10,090 

9,710 

5,620 

260

36,280

Note.- Discharge for periods of no gage-height record, Oct. 3-7, 25, 26, Nov. 1 to Apr. 24, and 

Hay 11-15, Interpolated, Aug. 24 to Sept. 30, computed on basis of records for station near HeLner, 

time of reservoir gate changes, and one gage reading on Sept. 28.

-832 February 1936

milTED STATES DBPAP^EHT OF TUB INTERIOR 

Oeolog. a Survey
GREEN RIVER BASIN 147

Price River near Helner, Utah

Location.- Water-stage recorder, lat. 39°43'05", long. 110°51'55", In SWi sec. 1, T. 13

 8., H. 9 E., two-thirds of a mile north of Helner and three-quarters of a mile downstream from Willow Creek.

Records available.- June 1934 to September 1940.

Extremes (regulated).- Maximum discharge during year, 9,340 second-feet Sept. 13 (gage 

height, 7.98 feet), by slope-area method; minimum discharge recorded, 3 second-feet 

Nov. 10, but may have been less during periods of Ice effect.

1934-40: Maximum discharge, that of Sept. 13, 1940; minimum, less than 1 secondfoot at times during period Sept.- 1-10, 1934.

Remarks.- Records good except those for periods of Ice effect or douttful gage-height

 record, which are fair. Station Is above diversions from the malr stream for Irrigation. Several small diversions from tributaries above station for Irrigation and 

municipal supply. Flow regulated by Scofleld Reservoir (capacity, 42,000 acre-feet).

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

8

8

8

15

14

11

10

11

11

9

8

S

8

12

18

23

21

21

21

20

14

9

8

7

S

S

6

6

7

6

6

HOT.

6

6

6

6

7

7

7

7

8

6

7

7

7

6

6

6

9

9

S

16

14

14

16

14

16

14

17

14

10

16

-

Dec.

14

12

18

18

12

14

14

13

12

12

14

11

blO

bll

til

bll

11

18

11

blO

b8

«b6

b4

b7

b6

b5

b4

b4

b6

b8

b9

Jan.

b9

8

6

6

6

b5

b4

b6

b6

b8

b8

1)7

b6

b5

*1>5

b5

1)7

1)6

b4

1)5

b6

1)5

1)5

b6

b6

b8

W

b8

b6

*1>7

1)9

Pel).

1)11

1)11

blO

b9

1)7

1)7

b8

b8

1>S

b8

b8

1)7

1)5

1)6

1)7

b6

t)5

b6

1)7

b6

«fc8

9

8

9

10

14

17

23

29

-

-

Month

Calendar year 1939.... ..................

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

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

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

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

Water year 1939-4 0......................

Mar.

25

80

22

28

22

19

IS

80

84

23

16

b!4

1)13

16

20

2S

48

43

44

47

48

54

57

58

63

60

63

53

48

47

51

Apr,

55

58

46

44

45

48

45

49

55

60

60

65

76

90

95

90

SZ

80

88

99

107

109

109

113

184

151

166

163

163

171

-

Secondfoot-days

350

891

306

29,804

196

277

1,106

2,700

6,854

5,487

4,455

8,659

8,119

86,800

May

166

163

163

806

217

214

211

211

229

847

247

844

244

23S

23S

235

235

832

229

286

886

280

817

814

211

814

826

835

832

232

232

Ii^y5nnlff)

23

17

14

325

9

89

63

171

247

835

1 Qo Iwtf

161

580

520

June

229

229

217

189

1S6

186

1S6

189

214

229

d!30

d90

d95

d!05

dllO

dllO

dllO

d!20

176

203

203

200

217

220

220

214

214

232

229

235

-

July

192

173

163

163

15S

161

181

179

173

156

146

144

146

156

166

16S

166

161

144

132

117

77

76

71

70

63

78

139

184

179

173

Mi.pi.gTOn

e

e

4-

-

4

5

13

44

163

90

63

12

4

4

Aug.

161

153

149

115

94

107

85

85

77

64

68

132

12S

111

94

144

139

124

S2

76

77

6S

80

71

58

22

20

12

12

26

25

Mean

11.3

9.7

9.9

80.0

6.3

9.6

35.7

90.0

221

183

144

85.8

70.6

73.2

Sept.

24

26

S9

2S

15

S

S

6

6

6

5

4

520

65

27

IS

74

21S

174

80

33

IS

19

16

13

11

102

189

294

23

-

Run-off in

aore-feet

694

577

607

57,940

3S9

549

2,190

5,360

13,590

10,880

S,840

5,270

4,200

53,150

Peak discharge.- Sept. 13 (3:30 p.m.) 9,340 sec.-ft.; Sept. 17 (11 p.m.) 1,430 sec.-ft.; Sept. 

19 UO p.m.) 814 sec.-ft.; Sept. 27 (8:30 p.m.) 1,060 sec.-ft.; Sept. 2S J4:30 a.m.) 1,360 sec.- 

ft.; Sept. 29 (4:30 a.m.) 1,960 sec.-ft.

 Winter discharge measurement made this day.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of records for station near Scofleld.

9-832 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeolog al Surrey
148 GREEN RIVER BASIN

Huntington Creek near Huntlngton, Utah

Location.- Water-stage recorder, lat. 39°22'15", long. 111°03 I 4511 , In SEi sec. 6, T. 17

 S., R. 8 E., 1 mile upstream from Fish Creek and 7 miles northwest of Huntirgton.

Drainage area.- 188 square miles.

Records available.- May 1909 to September 1917, October 1918 to November 1920 (fragmentary), 

April I9<di co September 1940.

Average discharge.- 25 years (1910-17, 1921-29, 1930-40), 98.1 second-feet.

Extremes.- Maximum discharge during year, 761 second-feet Aug. 6 (gage height, 3.98 feet);

 minimum recorded, 12 second-feet Nov. 10, but may have been less during periods of Ice 

sf f set

1909-40: 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; mirlmum recorded, 2 second-feet (revised) Nov. 5, 1926, during period of Ice effect, end may have 

been lower (luring other periods of Ice effect.

Remarks.- Records good except those for period of Ice effect, which are fair. Small dlver-

 slons above station for Irrigation. Flow slightly regulated by small reservoirs above 

station.

Rating table, water year 1939-40, except period of ice effect (gage height. In feet,

and discharge, In second-feet) 

(Shifting-control method used Aug. 7 to Sept. 30)

1.0 10 1.4 29 2.2 145 3.0 371 

1.1 13 1.6 48 2.4 191 3.3 4S1 

1.2 17 1.8 74 2.6 245 3.6 600 

1.3 22 2.0 106 2.8 306 4.0 770

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

81 

82 

£3 

24 

25

26 

27 

28 

89 

30 

51

Oct.

27 

28 

31 

32 

33

36 

32 

32 

33 

33

31 

29 

29 

28 

28

28 

28 

28 

27 

27

27 

27 

27 

27 

27

28 

25 

26 

28 

26 

27

HOT.

27 

26 

26 

25 

26

26 

24 

23 

27 

21

24 

23 

23 

23 

22

21 

20 

21 

23 

26

25 

22 

23 

22 

22

26 

26 

26 

22 

20

Dec.

28 

23 

22 

21 

22

22 

23 

23 

23 

22

23 

18 

*b22 

b21 

b22

b22 

b23 

b22 

b!8 

b!8

b!8 

b!7 

W.6 

b!8 

b!8

b!6 

b!5 

b!4 

b!7 

*b24 

b26

Jan.

 *b!9 

(*)

Feb.

> b22

(*)

28 

26 

26

26 

26 

26 

26

Month

Oot 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

Hater year 1939-40......................

Mar.

26 

23 

27 

24 

26

26 

25 

26 

26 

26

26 

22 

23 

23 

26

26 

2S 

26 

26 

28

28 

29 

31 

33 

34

34 

36 

34 

32 

32 

35

Apr.

34 

32 

31 

31 

31

31 

29 

32 

32 

33

32 

35 

41 

49 

77

71 

68 

78 

92 

112

131 

137 

131 

137 

141

135 

116 

98 

89 

82

Secondfoot-days

895 

711 

637

25,215

589 

668 

865 

2,16S 

11,587 

4,744 

3,114 

1,103 

1,081

28,162

May

S4 

117 

186 

257 

262

239 

239 

296 

371 

406

417 

493 

489 

497 

500

4S9 

439 

399 

417 

406

351 

371 

381 

410 

443

552 

528 

458 

396 

347 

347

Maximum

36

27 

28

55

36

141 

552 

357 

143 

66 

84

552

June

337 

31S 

293 

265 

231

212 

201 

191 

174 

158

149 

149 

149 

145 

135

119 

110 

103 

99 

91

84 

86 

104 

117 

112

112 

108 

112 

133 

147

July

143 

137 

139 

133 

131

126 

121 

114 

110 

106

104 

104 

98 

96 

96

101 

103 

111 

103 

92

89 

86 

84 

82 

78

77 

74 

73 

70 

68 

66

Aug.

66 

61 

65 

46 

45

64 

61 

47 

42 

35

32 

31 

29 

28 

28

28 

26 

27 

27 

28

29 

27 

27 

31 

32

28 

26 

25 

24 

24 

24

IH ionium Mean

25 28.9 

20 23.7 

14 20.5

14 69.1

19.0 

23.0 

22 27.9 

29 72.5 

84 374 

84 158 

66 100 

24 35.6 

23 36.0

76.9

Sept.

23 

24 

29 

31 

34

30 

31 

28 

27 

28

28 

2S 

35 

35 

53

28 

84 

59 

40 

56

42 

54 

55 

S3 

51

30 

29

63 

39 

34

Run-off in 

acre-feet

1,780 

1,410 

1,260

50,020

1,170 

1,520 

1,720 

4,500 

22,980 

9,410 

6,180 

2,190 

2,140

55,860

 Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

.« 338 February 1956

UNITED STATES DEPAP^MEUT OF THE INTERIOR 

Geolog al Survey
GREEN RIVER BASIN 149

Cottonwood Creek near Orangeville, Utah

Location.- Water-stage recorder, lat. 39°15'55", long. 111°07'40", in SWj 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 1940.

Average discharge.- 24 years (1910-20, 1921-27, 1932-40), 106 second-feet.

Extremes.- Maximum discharge recorded during year, 1,100 second-feet Sept. 17 (gage

height, 4.42 feet), from rating curve extended above 500 second-feet; minimum discharge 

recorded, 6 second-feet Dec. 19, during period of ice effect.

1909-27, 1932-40: Maximum discharge, 2,500 second-feet Aug. 22, 1928, Sept. 9, 

1927, from rating curve extended above 900 eecond-feet; minimum discharge observed, 4 

second-feet Jan. 24, 1933 (discharge measurement), but may have been less during periods of ice effect.

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

 which are fair. Small diversions above station for irrigation. Fphralm and Spring 

City tunnels, constructed by Bureau of Reclamation in 1936 and 19?8, respectively, 

and several small canals divert from headwaters of Cottonwood Creek to the Great 

Basin for irrigation in San Pitch River Basin.

Discharge, In second-feet, water year October 1959 to September 1940

Day

1

2

3

4

S

5

7

8

9

10

11

12

13

14

IS

16

17

18

19

80

21

22

83

24

25

26

27

28

29

SO

31

Oct.

26

24

26

28

21

29

29

89

27

85

25

26

25

25

25

25

25

25

24

24

24

24

24

24

24

24

21

22

23

22

22

ROT.

22

21

20

20

20

21

20

19

22

18

19

18

18

18

15

16

18

18

20

20

19

19

19

as

18

20

20

20

17

19

-

Dec.

25

18

18

18

18

18

18

18

18

18

17

15

*b!9

b!8

b!8

b!8

b!9

b!8

b!4

b!4

b!4

blS

b!2

b!4

b!4

blS

b!2

b!2

blS

*b!8

b20

Jan.

 «b!5

(»)

Feb.

> b!6

(«)

; 18

18

17

18

18

19

19

-

-

Month

Jlaroh.....................................

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

toy.. .....................................

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

Water year 1939-4 0. . . . .

Mar.

21

18

20

18

20

18

18

20

20

19

18

17

18

17

19

20

21

19

20

20

21

23

25

28

29

28

29

24

23

25

26

Apr.

25

23

25

23

25

24

23

25

27

27

27

29

34

42

44

37

34

59

50

65

77

84

88

98

94

86

77

70

70

66

-

Seoondfoot-days

773

572

510

28,648

465

479

662

1,454

16,443

6,337

1,552

748 

1,059

31,034

May

70

82

105

136

142

160

145

172

216

256

319

364

514

796

a900

a880

a800

a700

a750

a720

a660

a700

a750

a850

al,000

a950

a850

a750

a650

534

522

Mo^nnim

29

22

23

497

29

98

1,000

516

90

SO 

88

1,000

June

516

481

437

405

352

S12

299

279

256

238

221

217

214

205

189

175

158

148

1S8

131

124

113

107

99

93

88

83

83

83

93

-

July

90

81

76

74

69

66

63

60

59

55

52

50

49

48

45

50

52

55

49

41

39

39

39

35

34

32

31

30

SO

29

SO

Aug.

28

27

27

26

26

27

SO

26

25

24

24

24

23

23

23

22

22

23

23

23

25

24

23

26

27

24

23

22

20

20

20

in«4mnm Mean

2? 24.9

15 19.1

12 16.4

78.5

15

16.5

17 21*5

2<3 48*6

70 530

Q|X 211

2P 50.1

2C 24.1 

2C 34.6

84.8

Sept.

20

20

24

24

23

23

26

23

22

22

24

24

37

31

30

23

88

68

45

68

78

59

32

27

26

25

24

52

27

24

-

Run-off in 

acre-feet

1,530

1,130

1,010

56,790

922

950

1,310

2 7 880

52,610

12,570

3,080

1,480 

2,060

61,530

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on 

Huntlngton.

b Stage-discharge relation affected by Ice.

basis of records for Huntlngton Creek near

9-232 February 1936

UNITED STATES DEPARTMENT QF THE INTERIOR 

Qeolog. il Surrey
150 FREMONT RIVER BASIN

Fremont River below Fish Lake, near Fremont, Utah

Location.- Water-stage recorder, lat. 38°35'30", long. 111°40'30", in NEi sec. 34, T. 25

 S., H. 2 E., half a mile downstream from outlet gates of Fish Lake, 3i mllen northeast 

of Twin Creefks ranger station, and 10 miles northwest of Fremont.

Drainage area.- 27 square miles.

Records available.- June 1939 to September 1940.

Extremes (regulated).- 1939: Maximum daily discharge during period, 50 second-feet June

 8; practically no flow at times when gates at outlet of Fish Lake were closed.

1939-40: Maximum daily discharge during year, 58 second-feet June 6; practically 

no flow at times when gates at outlet of Fish Lake were closed.

Remarks.- Records good except those for periods of no gage-height record and ttose below

 5 second-feet, which are fair. Flow regulated by gates at outlet of Fish Lake, half a 

mile above station. No diversions above station.

Rating table, period June i, 1939, to Sept. 3O, 1940 (gage height, In feet, and discharge,

In second-feet)

7.4

7.5

7.6

7.7

7.8

B.B 

9.0 

9.2

Discharge, In second-feet, 1939-40 

1939

D«y

i

2

S

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June

0

0

0

0

0

0

35

50

41

37

33

26

25

23

24

28

31

28

26

24

26

30

30

3S

36

36

34

34

34

July

34

34

32

31

29

27

26

25

24

24

23

22

21

31

20

19

IS

17

16

15

13

13

12

12

12

11

11

11

11

11

11

A!«.

10

9

9

9

9

10

10

10

10

9

8

7

7

7

7

6

6

6

6

6

6

5

5

4

3

3

3

3

3

3

2

Sept.

2

2

2

2

2

3

3

2

2

2

3

4

5

4

3

3

.5

!

-

9-238 Septaiber 1937

UNITED STATES DEPARTMENT OF THE INTERIOR 

al Surrey
FREMONT RIVER BASIN 151

Discharge, In second-feet, of Fremont River below Pish Lake near Premont, Utah, 1939-40 Continued

1939-40

D«jr

1

2

S

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.

. 0.5

HOT.

(*)

 0.5

-

Dee.

X

 0.5

Jan.

«

. 0.5

Feb.

\

 0.5

,

-

-

liar.

. 0.5

Apr.

 0.5

~

Mar

. 0.5

(»)

June

1

1

1

1

37

58

57

53

50

49

47

47

45

43

42

40

39

38

36

36

34

34

32

32

30

30

28

27

26

28

-

July

27

24

24

23

22

21

21

20

19

18

17

16

16

15

14

15

14

14

13

12

12

12

11

11

11

10

11

9

7

6

6

Aug.

6

5

5

5

5

a5

a5

a5

a5

a5

a5

a4

a4

a4

a4

a4

a4

a4

a4

a4

a4

a3

a3

a3

a3

a3

a3

3

3

3

.3

Sept.

5

5

3

3

3

2

2

2

2

2

1

1

1

1

1

1

1

1

1

1

1

0

0

1

0

0

0

0

0

0-

"Discharge measurement made on this day. 

a Ho gage-height record; discharge Interpolated.

Hote.- Ho gage-height record Sept. 16, 1939 to June 5, 1940 when outlet gates were closed at Fish 

Lake;discharge computed on basis of two discharge measurements.

Monthly discharge, in second-feet, 1939-40

 1

Month

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

Secondfoot-days

51

_

16

_

1,780

Maximum

5

_

_

_

58

Minimum

.5

_

_

0

Mean

24 9

TO c;

1.7

_

.5

4.9

Run-off in 

acre-feet

t ion

101

3,180

32

"73

3,540
152 FREMONT RIVER BASIN 

Fremont River near Bicknell, Utah

Location.- Staff gage, lat. 38°18', long. 111°31', In NEi sec. 7, T. 29 S., R. 4 E., 

1,000 feet upstream from highway bridge, 1,000 feet downstream from Torres canal and 

Mill ditch, 1 mile downstream from Government Creek, and 3 miles southeast of Blcknell.

Drainage area.- 776 square miles.

Records available.- May 1909 to December 1912 (published as Fremont River near Thurber), 

October 1937 to September 1940.

Extremes.- Maximum discharge observed during year, 121 second-feet Apr. 21; minimum 

observed, 39 second-feet July 1.

1909-12, 1937-40: Maximum discharge observed, 420 second-feet Apr. 10, 1912; minimum observed, 18 second-feet June 2, 4, 13-15, 17, 18, 1912.

Remarks.- Records poor. Records Include flow of Torrey canal and Mill ditch and represent flow of Fremont River above these diversions. Discharge computed by combining 

flow In canals with that In river below canals. Gages read once dally. Several diversions above station for Irrigation. Flow affected by Fish Lake and Johnson and 

Forsythe Reservoirs.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

?,

Z

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

SO

21

S?.

23

PA

25

26

m

?fi

29

SO

31

Oct.

71

71

77

75

75

70

69

68

71

70

69

67

66

60

59

59

62

66

66

66

64

62

64

65

65

66

67

65

66

65

68

Hov.

69

66

68

69

72

72

73

68

75

68

74

72

73

79

69

73

74

74

6S

73

73

76

76

78

80

83

83

83

83

84

-

Dec.

84

62

81

82

81

80

82

86

86

82

82

80

80

80

80

82

86

83

79

72

7S

83

81

76

76

70

72

69

61

89

92

Jan.

S9

86

90

81

b80

b78

b77

b81

86

89

89

92

b90

b80

b71

b73

b73

74

79

77

74

79

76

75

92

92

89

89

81

86

92

Feb.

S9

89

92

92

90

86

S9

86

86

89

89

86

80

88

89

85

85

90

85

90

82

92

96

102

103

109

106

105

102

_

-

Month

Calendar year 1939. .............:.......

March, ....................................

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

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

Water year 1939-4

Mar.

101

97

97

97

98

90

92

95

92

92

92

83

91

91

84

84

84

81

81

79

76

75

70

70

68

68

77

75

68

68

68

Apr.

71

68

65

71

71

69

67

65

67

109

76

71

102

94

82

80

79

78

75

103

121

111

76

73

66

71

66

66

66

65

-

Secondfoot-days

2,477

30,103

2,560

2,584

1,451

2,178

25,590

May

67

67

60

59

57

57

57

58

59

64

64

62

60

60

61

61

63

61

59

63

64

62

61

61

60

59

56

58

57

59

60

Maximum

77

92

234

92

109

101

60

59

107

121

June

60

57

56

56

53

56

56

54

52

52

51

54

53

50

4S

48

49

48

46

46

47

49

45

41

41

41

40

44

41

41

-

July

39

40

42

40

41

43

46

48

56

45

45

49

55

55

50

53

53

53

59

57

46

42

48

46

44

43

41

41

44

44

43

Minimum

59

66

61

57

71

80

68

40

39

61

39

Aug.

44

45

43

44

47

4S

55

50

49

47

46

46

48

48

50

54

54

49

49

53

a56

60

61

67

66

65

64

71

73

70

65

Mean

66.9

74.3

79.9

SI. 5

SI. 6

9^.4

S"<.4

60.6

49.2

46.8

72.6

& >. 9

Sept.

65

64

6S

66

64

107

79

7S

73

73

71

72

65

65

78

94

84

84

63

72

61

75

70

68

74

72

65

67

71

70

~

Run-off in 

acre-feet

4,110

4,420

4,910

59,710

5,080

5,260

5,130

3,720

2,930

2,880

4,320

50,760

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by ice.

9-232 February 1936

UNITED STATES DBMTMENT OF THE INTERIOR 

Qeolot ,al Surrey
SAN JUAN RIVER BASIN 153

San Juan River near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°22'05", long. 106°53'40", In S^i sec. 12, T. 36 

N., R. 1 W., a quarter ol a mile upstream from private highway brldg3, half a mile 

upstream from West Fork of San Juan River, and 9.5 miles northeast o* Pagosa Springs.

Drainage area.- 86.9 square miles.

Records available.- May 1935 to September 1940.

Extremes.- Maximum discharge during year, 606 second-feet May 17 (gage height, 2.87 

feet); minimum daily, 5.5 second-feet Dec. 20.

1935-40: Maximum discharge, 1,670 second-feet May 28, 1938 (gage height, 4.00 

feet, site and datum then in uee); minimum daily, that of Dec. 20, 1939. 

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records good except those for periods of ice effect or no gag3-height record, 

wnich are fair. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

SO. 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Dot.

39 

35 

33 

31 

27

26 

26 

33 

32 

29

26 

25 

24 

23 

21

20 

19 

19 

18 

18

17 

16 

16 

15 

18

29 

20 

20 

20 

18 

19

HOT.

20 

19 

18

17 

18

19 

18 

16 

18 

15

14 

14 

13 

11 

10

9.6 

9.5 

9.5 

9.6 

9.6

9.6 

9.5 

9.3

e.9

s.e

9.3 

9.2 

8.6 

8.2 

8.5

Dec.

S.2 

8.6 

9.0 

9.6 

9.1

8.6 

8.S 

8.6 

9.2 

9.0

8.5 

8.0 

6.8 

7.4 

7.9

*8.5 

8.0 

7.9 

6.5 

5.5

6.4 

6.7 

8.2 

7.8 

8.6

7.O 

6.0 

6.5 

7.2 

7.8 

8.3

Jan.

S.O 

7.7 

S.5 

9.0 

9.1

7.6 

6.0 

6.8 

7.9 

7.9

7.3 

7.3 

6.6 

6.5 

6.6

7.0 

7.7 

8.0 

7.8 

7.9

8.6 

9.3

*9.1

9.°4

9.1 

8.5 

7.3 

7.9 

9.1 

9.1

Feb.

8.2 

7.6

8*. 5 

7.3

6.6 

6.6 

6.4 

6.2 

6.6

8.0 

7.2 

7.0 

S.O 

9.4

9.0 

8.2 

9.0 

9.5 

9.2

8.5 

9.4 

8.8 

8.2 

8.2

8.5 

9.1 

11 

13

Month

Dot 

NOT 

Dec

C

Jan 

Feb 

Mar 

Apr

Joi 

Jul 

Aug 

Sep

11

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

alendar ysar 1939......................

list..................... .

ater year 1939-4

Mar.

14 

12 

12 

11 

12

12 

11 

13 

16 

18

16 

14 

13 

19 

18

24 

29 

26 

34 

33

37 

46 

54 

66 

86

83 

80 

7O 

62 

57 

60

Apr.

64 

62 

61 

59 

77

76 

74 

76 

77 

80

S7 

95 

120 

150 

195

175 

130 

149 

178 

250

265 

260 

285 

260 

226

257 

268 

205 

168 

147

Seoondfoot-days

732 

377.7 

244.2

30,288.9

247.6 

241.4 

1,O58 

4,576 

11,077 

5,246 

1,201 

976 

1,178

27,155.1

May

142 

178 

257 

353 

365

365 

369 

349 

329 

369

369 

361 

401 

453 

449

445 

490 

508 

409 

369

313 

305 

309 

313 

305

325 

357 

369 

369 

389 

393

Ma-rinnini

39 

20 

9.6

469

9.4 

13 

86 

285 

SOS 

381 

73 

83 

97

50 S

June

3S1 

3S1 

345 

317 

2 89

274 

25O 

232 

211 

185

170 

160 

160 

17O 

160

147 

140 

132 

126 

US

111 

106 

99 

93 

88

84 

75 

67 

76 

99

Jul'

73 

64 

57 

54 

51

51 

44 

41 

39 

37

37 

40 

39 

45 

39

43 

36 

35 

32 

30

3O 

30 

27 

26 

24

24 

39 

36 

29 

26 

23

Minimum

15 

S.2 

5.5

5.5

6.0 

6.2 

11 

59 

142 

67 

23 

16 

19

5.5

Aug.

22 

21 

19 

17 

16

26 

33 

33 

23 

19

19 

17 

16 

17 

18

19 

18 

16 

17 

30

52 

54 

42 

83 

75

62 

52 

42 

37 

32 

29

Mean

E3.6 

12.6 

7.88

S3.0

7.99

a 32

34.1 

153 

357 

175 

38.7 

31.5 

39.3

74.2

Sept.

26 

28 

35 

28 

24

22 

22 

24 

20 

19

19 

19 

42 

31 

28

24 

27 

81 

97 

69

56 

57 

49 

45 

48

46 

40 

40 

48 

64

Run-off in 

acre-feet

1,450 

749 

484

60,080

492 

479 

2,100 

9,080 

21,970 

10,410 

2,380 

1,940 

2,340

53,870

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 16-28, Dec. 1 to Jan. 4, Jan. 14-25, Feb. 

6-2CT: No gage-height record Mar. 20 to Apr. 18, Apr. 20-24; discharge computed on basis of records 

for station at Pagosa Springs.

9-232 February 1936

UNITED STATES DEPAFTCENT OF THE INTERIOR 

Oeolog. il Surrey
154 SAN JUAN RIVER BASIN

San Juan River at Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°15'55", long. 1"7°00'40", In S& sec. 13, T. 35 

 N., R. 2 W., under lower highway bridge at town of Pagosa Springs. Datum of gage Is 

7,052.03 feet above mean sea level (unadjusted).

Drainage area.- 298 square miles.

Records available.- January 1911 to November 1914, May 1935 to September 1940.

Extremes.- Maximum discharge during year, 1,600 second-feet May 17 (gage height, 5.16 

feet); minimum dally, 23 second-feet Dec. 20.

1911-14, 1935-40: Maximum discharge recorded, 4,710 second-feet June 15, 1935, 

from rating curve extended above 3,300 second-feet; minimum dally, 22 seccnd-feet 

Dec. 19, 1938.

Greatest flood known occurred Oct. 5, 1911 '(discharge, about 25,000 second-feet; 

gage height, about 17 feet).

Remarks.- Records good. Diversions above station for Irrigation.

Discharge, In Eecond-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

103 

94 

88 

84 

79

77 

74 

97 

92 

82

79 

72 

71 

69 

68

66 

64 

58 

57 

53

50 

50 

50 

49 

54

95 

71 

69 

76 

71 

76

Hov.

74 

74 

69 

69 

69

74 

71 

66 

77 

68

66 

68 

64 

58 

55

53 

53 

49 

52 

48

52 

50 

48 

45 

43

46 

49 

44 

41 

41

Dec.

38 

40 

40 

45 

44

40 

41 

40 

42 

43

40 

38 

30 

32 

32

38 

37 

36 

29

28 

28 

37 

34 

39

38 

25

32 

35 

37

Jan.

36 

35 

38 

40 

39

39 

33 

35 

40 

40

39

37 

32 

30 

33

37 

39 

38 

40 

35

40 

37 

36 

40

40

40 

40 

36 

37 

40 

41

Feb.

45 

41 

39 

44 

41

37 

41 

41 

39 

39

41 

44 

37 

40 

45

42 

38 

41 

43 

41

36 

43 

44 

43 

44

45 

50 

53 

61

Month

Oct 

Nov 

Dec

C

Jan 

Pet) 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

W

uary

ust....................................

ater year 1939-4

Mar.

71 

63 

60 

60 

63

61 

58 

63 

79 

88

82 

69 

52

57 

77

103 

126 

119 

134 

144

168 

210 

249 

279 

315

308 

270 

246 

208 

192 

218

Apr.

221 

208 

ISO 

173 

195

195 

187 

192 

197 

205

205 

229 

298 

424

474

396 

346 

350 

483 

680

798 

782 

857 

830 

736

766 

814 

614 

483 

404

Secondfoot-days

2,236 

1,736 

1,108

87,724

1,162 

1,238 

4,292 

12,922 

32,460 

13,276 

2,841 

2,267

3,768 

79,328

May

376 

496 

798 

1,110 

1,190

1,160 

1,140 

1,060 

980 

1,080

1,080 

1,040 

1,130 

1,270 

1,290

1,280 

1,370 

1,340 

1,130 

1,020

902 

848 

920 

930 

950

1,000 

1,070 

1,110 

1,120 

1,130 

1,160

Maximum

103 

77 

45

1,300

41 

61 

315 

857 

1,370 

1,150 

187 

182

357 

1,370

June

1,150 

1,080 

1,000 

920 

839

758 

674 

602 

525 

442

400 

365 

353 

361 

346

318 

295 

276 

267 

249

240 

258 

249 

210 

192

182 

175 

155 

155 

240

July

1S7 

155 

138 

128 

126

121 

106 

99 

90

S7

85 

87 

79 

87 

77

82 

76 

72 

69 

64

68 

64 

61 

60 

54

54 

84 

140 

90

77 

74

Minimum

49

41 

23

23

30 

36 

52 

173 

376 

155 

54 

39

52 

23

Aug.

63 

58 

52 

48 

44

63 

77 

6S 

52 

46

44 

41 

40 

40 

44

43 

42 

39 

44 

71

99 

94 

82 

157 

182

148 

130 

103 

95 

84 

74

Mean

72.2 

57.9 

35.7

240

37.5 

42.7 

138 

431 

1,048 

443 

91.6 

73.1

126 

217

Sept.

72 

69 

94 

79 

66

60 

58 

57 

53 

53

57 

52 

82 

72

71

58 

58 

190 

357 

255

190 

218 

192 

173 

161

161 

146 

142 

202 

270

Run-off In 

acre-feet

4,440 

3,440 

2,200

174,000

2,300 

2,460 

8,510 

25,630 

64,420 

26,330 

5,640 

4,500

7,470 

157,300

9-232 February 1936

UNITED STATES DEP*TMENT OP THE IHTERIOR 

OeolCt :al Survey
SAN JUAN RIVER BASIN 155

San Juan River at Rosa, N. Mex.

Location.- Water-stage recorder, lat. 37°00'20", long. 107°24'10", in sec. 21, T. 32 N., 

R. 5 W., about 75 feet upstream from highway bridge, a quarter of a mile downstream 

from Piedra River, and about a mile north of Rosa.

Drainage area.- 1,990 square miles.

Records available.- October 1930 to September 1940 in reports of Geological Survey. 

Septemoer !9<iO to December 1931 in reports of State engineer.

Average discharge.- 20 years (1920-40), 1,166 second-feet.

Extremes.- Maximum discharge during year, 3,780 second-feet May 18 (gage height, 4.36 

reet); minimum daily, 80 second-feet Dec. 28.

1930-40: Maximum discharge, 10,400 second-feet June 21, 1935 (gage height, 7.60 

feet, datum then in use), from rating curve extended above 8,200 second-feet; minimum 

daily, 70 second-feet (estimated) Dec. 1, 2, 1934.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records good except those for periods of ice effect, which are poor. Diversions 

above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

30 

31

Oct.

348

314 

290 

278 

260

249 

238 

249 

296 

272

260 

249 

249 

238 

227

216 

216 

216 

200 

200

196 

192 

192 

192 

192

278 

327 

254 

249 

249 

227

Nov.

232 

238 

232 

227

244 

244 

238 

244 

272

244 

244 

244

210

200 

196 

192 

196 

187

192 

*b!80 

b!90 

187 

178

178 

187 

192 

182 

174

Dec.

174 

164 

169 

164 

174

174 

174 

174 

169 

174

174 

169 

b!50 

b!30 

119

b!30 

b!50 

b!50 

b!40 

bllO

104 

113 

b!20 

146 

b!50

blEO 

b90 

b80 

b90 

blOO 

b!20

Jan.

bllO 

bllO 

b!30 

b!40 

b!60

b!50 

b!40 

b!30 

b!40 

»b!60

b!60 

b!70 

b!40 

bllO 

*b90

blOO 

b!20 

b!40 

b!50 

b!60

b!60 

*b!50 

b!40 

b!40 

b!50

b!60 

b!60 

b!60 

»b!40 

b!50 

b!60

Feb.

b!70 

b210 

b230 

b200 

«blBO

b!60 

b!40 

b!60 

b!60 

b!50

b!50 

b!60 

*b!70 

b!50 

b!80

b!70 

b!60 

b!50 

»b!70 

b!60

bl80 

210 

205 

249 

232

284 

320 

376 

406

Month

Dot 

NOT 

Dec

C

Jan

Feb 

Mar 

Apr 

May

JUD

Jul

Aug 

Sep

H

uary

ater year 1939-4 0. .....................

Mar.

414 

383 

348 

334 

362

348 

296 

320 

438 

533

533 

362 

284 

254 

290

390 

570 

580 

610 

640

710 

837 

992 

1,080 

1,140

1,210 

1,100 

1,090 

870 

771 

837

Apr.

870 

848 

760 

710 

720

750 

710 

690 

690 

710

700 

720 

870 

1,180 

1,510

1,350 

1,200 

1,160 

1,280 

1,790

2,240 

2,180 

2,350 

2,260 

1,960

1,870 

2,040 

1,700 

1,420 

1,220

Secondfoot-days

7,613 

6,378 

4,365

275,324

4,380 

5,842 

18,926 

38,458 

73,930 

29,572 

7,380 

7,106 

10,285

May

1,090 

1,180 

1,730 

2,510 

2,830

2,750 

2,750 

2,670 

2,300 

2,510

2,590 

2,510 

_ 2,510 

2,830 

2,920

2,830 

2,920 

3,420 

2,750 

2.350

2,060 

2,020 

2,220 

2,080 

2,050

2,020 

2,200 

2,340 

2,320 

2,320 

2,350

Mn-y3irmTfl

348 

272 

174

3,780

170 

406 

1,210 

2,350 

3,420 

2,430 

600 

644 

926

3,420

June

2,430 

2,260 

2,020 

1,860 

1,690

1,540 

1,390 

1,230 

1,170 

1,000

914 

848 

804 

826 

837

793 

771 

700 

660 

640

560 

580 

670 

560 

488

462 

430 

383 

376 

680

Jily

600 

454 

362 

327 

327

320 

296 

272 

244

210

196 

186 

172 

196 

212

186 

196 

186 

181 

163

138 

142 

145 

145 

142

201 

181 

308 

273 

223 

196

Minimum

192 

174 

80

73

90 

140 

254 

690 

1,090 

376 

138 

101 

150

80

Aug.

168 

158 

145 

128 

128

128 

168 

218 

181 

142

131 

138 

131 

124 

134

124 

120 

117 

101 

142

280 

366 

400 

579 

644

476 

410 

332 

287 

266 

240

Mean

246 

213 

141

754

141 

201 

611 

1,282 

2,385 

986 

238 

229 

343

585

Sept.

223 

218 

218 

234 

212

190

176 

172 

163 

150

154 

150 

163 

206 

181

176 

168 

245 

734 

770

537 

516 

537 

486 

438

457 

457 

428 

600 

926

Run-off in 

acre-feet

15 , 100 

12,650 

8,660

546,100

8,690 

11,590 

37,540 

76,280 

146,600 

58,660 

14,640 

14,090 

20,400

424,900

 Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

9~8S! 4004530-41-11

UNITED STATKS DEPAP"IBENT OP THE INTERIOR 

Seolog. il Survey
156 SAN JUAN RIVER BASIN 

San Juan River near Blanco, N. Mex.

Location.- Water-stage recorder, lat. 36°44', long. 107°49', in sec. 18, T. 29 N., R. 9 

W . , naif a mile upstream from highway bridge, 1 mile upstream from Canyon Largo, and 

li miles east of Blanco.

Drainage area.- 3,320 square miles.

Records available.- December 1908 to October 1910 (January to October 1910, gage heights 

only) , October 1930 to September 1940 In reports of Geological Survey. D3cember 1908 

to December 1909, June 1927 to December 1931 in reports of State engineer.

Average discharge.- 12 years (1928-40), 1,417 second- feet.

Extremes.- Maximum discharge during year, 4,480 second-feet May 18 (gage height, 4.87 

reet; ; minimum daily, 25 second-feet Aug. 6.

1930-40: Maximum discharge, 18,000 second-feet Apr. 16, 1937, from rating curve 

extended above 11,000 second-feet by logarithmic plotting and on basis of velocityarea studies; maximum gage height 7.65 feet Aug. 21, 1932; minimum dally discharge, 

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 poor. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 194O

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

as

23

24

25

26

27

28

29

30

31

Oct.

37S

323

292 2 en

277

249

244

239

263

303

277

258

244

239

235

230

226

221

221

221

217

217

213

208

208

312

462

367

282

282

282

HOT.

277

292

277

277

282

292

263

2S8

258

345

350

313

329

345

334

308

297

292

277

282

253

277

230

226

226

221

249

263

273

226

-

Dec.

244

235

187

191

208

230

217

213

217

221

235

253

235

204

180

160

187

211

204

142

153

142

168

168

208

a2QO

a!80

a!50

a!30

alSO

alSO

Jan.

a!90

a!60

a!60

a210

a250

a270

a270

a260

a230

a240

263

277

292

b250

b210

b!50

«b!40

b!70

b20O

b210

b220

b220

b210

*b200

b200

b210

b220

b220

b200

b210

b220

Feb.

239

308

361

329

287

253

258

226

204

226

230

258

226

239

217

217

199

191

199

195

239

268

282

389

483

455

890

815

761

-

-

Month

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

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

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

Water year 1939-40......................

Mar.

761

592

608

518

548

57O

511

455

555

743

743

6O8

449

384

350

431

624

77O

752

788

842

950

1,140

1,310

1,400

1,560

1,500

1,450

1,310

1,050

993

Apr.

1,070

1,110

1,030

960

910

950

930

870

870

870

880

86O

930

1,24O

1.720

1,870

1,710

1,480

1,290

1,600

2,070

2.21O

2,650

2,880

2,850

2,610

2,520

2,500

1,920

1,630

-

Seoondfoot-days

8,277

8,392

6,003

337,405

6,732

9,444

25,265

47,040

87 f 780

30,794

5,069

8,069

13,697

256,562

May

1,360

1,430

1,820

2,520

3,110

3,230

3,210

3,210

2,940

2,880

3,210

3,130

3.06O

3,300

3,430

3,380

3,460

3,890

3,750

3,130

2,520

2,460

2,720

2,520

2,390

2,410

2,540

2,690

2,690

2,670

2,720

MflTf^HHHH

462

350

253

4,640

292

890

1,560

2,880

3,890

2,690

518

1,270

1,420

3,890

June

2,690

2,580

2,460

2,150

1,910

1,66O

1.500

1,350

1,220

1,140

982

900

842

797

806

797

743

68O

600

555

525

511

518

525

449

425

367

339

318

455

-

July

518

425

313

263

226

230

226

191

164

139

113

86

81

67

71

96

86

204

168

91

86

61

59

61

99

110

113

272

187

153

110

IHn^nnm!

208

221

130

17

140

191

350

860

1,360

318

59

25

74

25

Aug.

79

49

39

31

27

25

345

183

213

179

142

132

156

122

102

110

57

69

96

261

292

292

532

892

1,270

761

449

356

308

292

208

Mean

267

280

194

924

217

326

815

1,568

2,832

1,026

164

260

457

'701

Sept.

176

164

142

146

160

139

110

93

113

96

76

76

74

79

122

96

99

172

422

1,240

1,210

1,020

950

890

815

725

672

1,190

1,010

1,420

"

Run-off in 

acre-feet

16,420

16,650

11,910

669,300

13,350

18,730

50,110

93,300

174,100

61,080

10,050

16,000

27,170

508,900

 Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for stations at Pffgosa Springs 

and Rosa.

b Stage-discharge relation affected by ice.

9-232 February 1936

UHITKD STATES DEPAD"1MEHT OP THE INTERIOR 

Qeolog al Survey
SAN JUAN RIVER BASIN 157

San Juan River at Farmlngton, N. Hex.

Location.- Water-stage recorder, lat. 36°43', long. 108°13', In NEjNEi sec. 20, T. 29 N. 

R. 13 W., 1,900 feet downstream from Anlmas River and 1 mile southwest of Farmlngton.

Drainage area.- 6,580 square miles.

Records, available.- June 1904 to September 1906, September 1912 to December 1914, and 

October 1930 to September 1940 In reports of Geological Survey. September 1912 to 

July 1918 and November 1921 to December 1931 in reports of State engineer.

Average discharge.- 17 years (1922-25, 1926-40), 2,451 second-feet.

Extremes.- Ifexlmum discharge during year, 7,760 second-feet May 15 (ga?e height, 3.76 

reet); minimum daily, 83 second-feet Aug. 5, 6.

1930-39: Ifexlmum discharge, 32,800 second-feet Sept. 28, 1935 (gage height, 8.0 

feet, estimated), from rating curve extended above 18,000 second-fe^t; minimum dally, 

27 second-feet Aug. 22, 1939.

Remarks.- Records for January to September good, others fair. Diversions above station 

ror irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

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 

51

Oct.

904 

770 

662 

607 

61B

596 

575 

596 

61B 

651

651 

596 

556 

499 

464

44B 

423 

406 

431 

44B

406 

433 

392 

350 

350

499 

862 

795 

639 

556 

537

HOT.

547 

5S5 

575 

566 

566

556 

585 

596 

70S 

745

782 

720 

640 

651 

61B

596 

556 

537 

537 

537

506 

4B9 

481 

4B1 

499

469 

461 

461 

537 

516

Dec.

506 

499 

464 

44S 

459

44S 

439 

439 

456 

472

461 

499 

499 

489 

464

464 

446 

472 

472 

365

299 

360 

317 

330 

414

456 

376 

311 

286 

371 

423

Jan.

537 

673 

684 

547

61S

556 

414 

431 

464 

499

527 

684 

720 

456

51S

464 

414 

431 

439 

376

371 

392 

406 

423 

44S

446 

489 

506 

547 

537 

527

Feb.

651 

846 

690 

820 

695

547 

527 

537 

516 

499

508 

537 

464 

431 

469

489 

464 

371 

423 

454

439 

461 

556 

596 

862

795 

1,410 

1,360 

1,230

Month

Oct 

Koi 

Dec

C

Jan 

Fell 

Mar 

Apr 

Ma, 

Jim 

Jul

£eSep 

«

alendar year 193 

nary 

9......................

ater year 1939-4

Mar.

1,210 

990 

916 

960 

662

890 

916 

820 

834 

1,130

1,210 

1,100 

795 

556 

461

506 

770 

1,040 

1,130 

1,130

1,130 

1,250 

1,470 

1,750 

1,800

1,930 

1,900 

2,110 

2,090 

1,650 

1,390

Apr.

1,430 

1,490 

1,490 

1,430 

1,280

1,300 

1,430 

1,390 

1,300 

1,200

1,200 

1,210 

1,320 

1,650 

2,210

2,110 

2,520 

1,900 

1,750 

2,210

3,140 

3,230 

3,550 

4,220 

4,330

3,790 

3,760 

3,590 

3,020 

2,520

Seoondfoot-days

17,316 

17,167 

13,150

583,016

15,550 

16,901 

36,722 

66,970 

149,440 

63,351 

10,026 

12,399 

25,059

446,055

May

2,110 

1,640 

2,260 

2,620 

3,970

4,840 

4,880 

5,330 

4,970 

5,170

5,660 

6,120 

6,070 

6,200 

6,650

6,630 

6,500 

6,850 

6,240 

4,930

4,360 

3,830 

3,900 

4,160 

4,430

4,540 

4,760 

4,970 

4,850 

4,660 

4,700

^B3rtnMin

904 

782 

506

7,550

720 

1,410 

2,111 

4,330 

6.R50 

5,050 

661 

2,180 

2,400

6,850

June

4,970 

5,050 

4,850 

4,510 

4,000

3,530 

3,050 

2,770 

2,560 

2,300

1,980 

1,820 

1,780 

1,820 

1,900

1,840 

1,600 

1,480 

1,320 

1,210

1,170 

1,070 

1,090 

1,070 

970

672 

766 

671 

594 

736

July

845 eei

692 

580 

515

455 

436 

400 

33 Z 

264

199 

141 

110 

106 

100

126 

156 

575 

375 

256

157 

157 

96 

93 

100

144 

271 

59 e 

350 

282 

226

MinijsuBi

350 

461 

280

27

371 

371 

4S1 

1,200 

1,840 

594 

93 

S3 

120

83

Aug.

16S 

120 

91 

85 

83

83 

700 

291 

226 

213

199 

171 

171 

171 

135

123 

126 

67 

95 

145

661 

346 

569 

692 

2,180

1,400 

854 

676 

574 

534 

406

Mean

559 

572 

424

1,597

502 

652 

1,165 

2,232 

4,821 

2,112 

323 

400 

835

1,219

Sept.

326 

350 

332 

210 

213

202 

17S 

144 

132 

144

120 

129 

202 

144 

157

182 

174 

510 

93S 

2,400

2,300 

2,050 

1,980 

1,860 

1,580

1,360 

1,240 

1,610 

2,090 

1,800

Run-off In 

acre-feet

34,350 

34,050 

26,080

1,156,000

30,840 

37,490 

72,840 

132,800 

296,400 

125,700 

19,690 

24,590 

49,700

884,700

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolog il Surrey
158 SAN JUAN RIVER HASIN

San Juan River at Ship Rock, N. Mex.

Location.- Water-stage recorder, lat. 36°47'35", lone. 10&°43'55", in SMi sec. 22, T. 30 

N., R. 18 W., 3 miles northwest of Ship Rock and about 6 miles downstream fron Chaco 

River. Datum of gage, 4,848.6 feet above mean sea level (river-profile survey).

Drainage area.- 12,800 square miles.

Records available.- January to October 1911, October 1930 to September 1931, and October 

1932 to September 1940 in reports of Geological Survey. January to October 1911 and 

November 1915 to December 1931 in reports of State engineer.

Average discharge.- 20 years (1916-20, 1921-25, 1927-31, 1932-1940) 2,782 second-feet.

E"t.remes^.- Maximum discharge during year, 7,430 second-feet May 16 (ga^e height 5.60 feet); 

mininium daily, 20 second-feet Aug. 6, 7.

1930-31, 1932-40: MaxLmum discharge, 44,200 second-feet Sept. 2£, 1935 (gage height, 

9.44 feet, site and datum then in use, from floodmarks), from rating- curve extended 

above 20,000 second-feet by logarithmic plotting; minimum daily, 6 second-feet Aug. 25, 

26, 1939.

A stage of about 6.5 feet, site and datum then in use, occurred Aug. 11, 1929 (discharge, about 80,000 second-feet). A greater discharge probably occurred Oct. 6, 1911, 

when a stage of 22.0 feet on old gage (relation to present datun unknown) was recorded.

Remarks.- Records from February to September good; from October to January fair e:;cept those 

for periods of ice effect or no tage-height record, which are poor. Diversions above 

station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

894 

796 

752 

708 

700

708 

692 

678 

646 

652

672 

620 

614 

608 

584

545 

545 

525 

505 

520

510 

515 

495 

448 

436

475 

700 

738 

738 

633 

596

Nov.

578 

566 

578 

572 

590

620 

659 

672 

730 

692

626 

722 

646 

652 

596

608 

614 

578 

550 

555

520 

505 

535 

555 

584

608 

573 

560 

555 

578

Dec.

560 

555 

550 

515 

520

515 

540 

535 

545 

540

555 

560 

560 

545 

510

505 

495 

505 

530 

b470

b390 

n370 

b350 

b420 

b500

520 

444 

416 

364 

344 

408

Jan.

470 

510 

566 

596 

596

652 

614 

572 

646 

708

787 

883 

883 

596 

540

475 

456 

432 

436 

456

460 

448 

396 

424 

475

4FO 

480 

465 

495 

480 

515

Feb.

525 

685 

730

666 

646

602 

555 

596 

566 

560

566 

530 

500 

490 

475

510 

525 

480 

500 

535

520 

584 

685 

769 

832

988 

1,460 

1,330 

949

Month

Got 

Hov 

Deo

C

Jasi 

Peb 

Mar 

Apr **

Jim 

Jul 

Aug 

8ep

«

nary

ater year 1939-4

Mar.

894 

916 

722 

778 

730

832 

861 

841 

850 

927

1,040 

1,030 

872 

700 

633

659 

738 

796 

938 

1,060

,030 

,000 

,260 

,590 

,760

,880 

,140 

,000 

,000 

,650 

,420

Apr.

1,400 

1,630 

1,590 

1,440 

1,260

1,160 

1,230 

1,240 

1,040 

1,100

1,160 

1,210 

1,350 

1,570 

2,020

2,780 

2,840 

2,400 

1,980 

1,020

2,780 

3,480 

3,480 

4,260 

4,480

4,030 

3,700 

3,920 

3,370 

2,780

Seeondfoot-days

19,248 

17,976 

15,136

555,420

17,002 

19,359 

34,547 

68,600 

148,270 

61,790 

12,546 

14,120 

30,099

458,693

May

2,200 

1,710 

1,960 

2,630 

4,140

4,830 

4,950 

5,310 

5,190 

5,190

5,680 

6,070 

6,070 

5,940 

6,600

6,600 

6,330 

6,330 

6,460 

5,070

4,600 

4,140 

4,030 

4,140 

4,260

4,370 

4,260 

4,720 

4,830 

4,830 

4,830

MftT^imim

894 

730 

560

6,880

883 

1,460 

2,140 

4,480 

6,600 

5,070 

2,310 

2,870 

3,050

6,600

June.

4,950 

5,070 

4,830 

4,370 

3,920

3,480 

3,050 

2,780 

2,420 

2,200

1,920 

1,720 

1,670 

1,590 

1,780

1,820 

1,570 

1,520 

1,400 

1,230

1,160 

1,060 

1,060 

988 

974

832 

752 

614 

515 

545

July

752 

949 

778 

608 

520

452 

396 

384 

324 

261

a!70 

a 90 

a60 

a50 

d50

51 

45 

165 

412 

344

213 

122 

96 

62 

51

45 

103 

2,310 

1,840 

567 

276

Minimum

436 

505 

344

8

396 

475 

633 

1,040 

1,710 

515 

45 

20 

107

20

Aug.

191 

112 

57 

36 

a25

20 

20 

448 

210 

170

160 

132 

100 

105 

100

78 

58 

56 

44

50

218 

490 

436 

1,280 

2,870

2,720 

1,420 

760 

685 

545 

515

Mean

621 

599 

488

1,522

548 

668 

1,114 

2,287 

4,783 

2,060 

405 

455 

1,003

1.253

Sept.

396 

340 

380 

320 

a220

alSO 

al60 

a!30 

allO 

a!20

a!40' 

107 

122 

183 

151

163 

183 

804 

2,010 

2,560

3,050 

2,780 

2,360 

2,300 

1,980

1,570 

1,300 

1,350 

2,710 

1,900

Run-off in 

acre-feet

38,180 

35,650 

30,020

1,102,000

33,720 

38,400 

68,520 

136,100 

294,100 

122 , 600 

24,880 

28,010 

59,700

909,900

No gage-height record; discharge computed on basis of records for station at Frr-mington.

Stage-discharge relation affected by Ice.

Doubtful gage-height record; discharge computed on basis of records for station at Farmlngton.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolofc al Surrey
SAN JUAN RIVER BASIN 159

San Juan River near Bluff, Utah

Location.- Water-stage recorder, lat. 37°09', long. 109°52', in SW? sec. 7, T. 48 S., R. 

19 E., 1,600 feet downstream from Gypsum Wash, 1,800 feet upstream from bridge, and 20 

miles southwest of Bluff. Altitude of gage, 4,050 feet (from river-oroflie map).

Drainage area.- 23,900 square miles.

Records available.- October 1914 to September 1917, March 1927 to September 1940.

Average discharge.- 15 years (1915-17, 1927-40), 2,736 second-feet.

Extremes.- Maximum discharge during year, 18,500 second-feet Sept. 30 (gage height, 14.1 

feet); minimum daily, 31 second-feet Aug. 20.

1915-17, 1927-40: Maximum discharge, 70,000 second-feet Sept. 10, 1927-(gage 

height, 32.0 feet), from rating curve extended aoove 15,000 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. Ilex., probably exceeded, at this station, that of Sept. 10, 1927, but stage was not accurately determined.

Remarks.- Records excellent except those for July 13 to Sept. 30, which are fair. Many 

diversions above station for irrigation. No diversions between station and nouth of 

river.

Discharge, in second-feet, water year October 1939 to September 1940

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 

90 

31

Oct.

974 

878 

854 

776 

724

681 

628 

602 

691 

643

607 

643 

654 

628 

582

563 

539 

475 

475 

$58

441 

453 

445 

424 

408

420 

404 

484 

1,550 

776 

659

Hov.

578 

568 

612 

602 

578

558 

568 

582 

649 

800

854 

794 

713 

708 

638

654 

638 

628 

582 

597

587 

573 

568 

558 

553

520 

553 

549 

530 

563

Dec.

582 

587 

534 

544 

558

516 

511 

511 

563 

549

539 

516 

488 

506 

506

488 

475 

441 

432 

449

480 

462 

441 

357 

470

520 

506 

506 

294 

166 

259

Jan.

266 

332 

441 

794 

981

830 

776 

. 708 

633 

654

794 

890 

1,620 

1,120 

782

530 

453 

462 

432 

354

400 

502 

428 

278 

420

563 

670 

764 

649 

602 

649

Feb.

670 

1,130 

1,690 

1,960 

1,480

994 

860 

747 

643 

633

602 

558 

539 

558 

558

530 

544 

582 

582 

502

525 

558 

534 

582 

649

788 

1,060 

1,880 

2,220

Month

Oot 

Nov

Deo

C

Jan 

Pel 

Mar 

Apr 

May 

JUE

Jul 

Aug 

Sep

«

alandar year 193 9......................

ater year 1939-4

liar.

1,870 

1,520 

1,530 

1,220 

1,090

981 

890 

962 

B78 

800

830 

1,190 

1,120 

1,030 

776

659 

612 

617 

818 

968

988 

1,020 

1,080 

1,220 

1,410

1,710 

1,770 

2,220 

2,040 

1,990 

1,620

Apr.

1,420 

1,330 

,500 

,460 

,410

,230 

,200 

,260 

,200 

,170

,140 

,090 

,100 

,120 

,200

,720 

,520 

,510 

,220 

,900

,730 

,340 

,200 

,410 

,450

,230 

,710 

,570 

,780 

,030

Secondfoot -days

19,539 

18,455 

14,756

570,515

19,777 

25,158 

37,429 

63,150 

145, 5PO 

63 , 627 

16,342 

20,677 

57,791

502,291

May

2,510 

2,320 

1,910 

2,030 

2,520

3,990 

4,930 

4,930 

5,270 

5,010

5,100 

5,690 

5,950 

6,030 

5,990

6,620 

6,620 

6,440 

6,800 

6,530

4,960 

4,640 

4,020 

3,870 

3,720

3,940 

4,300 

4,380 

4,780 

4,940 

4,850

^"Tlnnini

1,550 

854 

587

11,000

1,620 

2,220 

2,220 

4,450 

6,800 

5,250 

3,140 

5,300 

12,130

12,130

June

4,990 

5,250 

5,180 

4,930 

4,100

3,660 

3,270 

2,860 

2,560 

2,270

2,060 

1,880 

1,650 

1,600 

1,530

1,490 

1,550 

1,460 

1,370 

1,300

1,100 

1,040 

955 

916 

910

848 

854 

697 

724 

623

July

913 

549 

719 

854 

659

558 

416 

388 

328 

301

281 

235 

196 

150 

118

118 

280 

218 

77 

46

74 

253 

a!50 

alOO 

78

51 

552 

1,430 

3,140 

2,220 

890

Minimum

404 

520 

166

0

266 

502 

613 

1,090 

1,910 

623 

46 

31 

139

31

Aug.

384 

224 

148 

112 

93

74 

52 

47 

120 

339

154 

124 

114 

96 

83

62 

59 

54 

41 

31

137 

154 

328 

1,650 

4,500

5,300 

2,930 

974 

994 

697 

602

Mean

630 

615 

476

1,563

638 

868 

1,207 

2,105 

4,696 

2,121 

527 

667 

1,926

1,372

Sept.

506 

462 

388 

380 

318

361 

269 

199 

202 

181

157 

139 

678 

281 

275

194 

311 

3,000 

3,330 

5,450

2,930 

4,380 

4,100 

2,770 

2,220

2,090 

1,710 

1,710 

6,170 

12,130

Run-off in 

acre-feet

38,760 

36,600 

29,270

1,131,600

39,230 

49,900 

74,240 

125,300 

288,800 

126,200 

32,410 

41,010 

114,600

996,300

a Ho gage-height record; discharge estimated.

9-232 February 19S6

UNITED STATES DEWTMENT OF THE INTERIOR 

OleolOi ;al Surrey
160 SAN JUAN RIVER BASIN

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

Location.- Water-stage recorder, lat. 37°29'00n , long. 106°55'45", In sec. 36, T. 38 N., 

R. 1 W., half a mile downstream from Beaver Creek, li miles upstream froir Borns Lake, 

and 16 miles northeast of Pagosa Springs.

Drainage area.- 41.2 square miles.

Records available.- April 1937 to September 1940.

Extremes.- Maximum discharge during year, 430 second-feet May 14 (gage helglit, 3.31 feet); 

minimum not determined, occurred during period of Ice effect.

1937-40: Maximum discharge, 1,100 second-feet June 3, 1938 (gage height, 4.43 feet), 

from rating curve extended above 600 second-feet; minimum not determined. 

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records good except those for period of Ice effect,which are fair. 

slons or regulation.

No diverDischarge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

81 

22 

23 

84 

85

26 

87 

88 

29 

SO 

31

Oct.

29 

28 

27 

26 

24

24 

24 

32 

27 

25

24 

24 

23 

23 

22

21 

20 

20 

20 

18

18 

IS 

18 

18 

19

17 

19 

21 

21 

22 

23

Hov.

24 

23 

21 

20

20

21 

19 

18 

18 

18

18 

18 

17 

15 

12

12 

12 

12 

12 

12

11 

11 

11 

10 

9

10 

9 

8 

8 

8

Dec. Jan. Feb.

Month

Dot 

Hov 

Dec

0

Jan 

Fet 

Mar 

Apr

Jui 

Jul

AU£

Sep 

W

alendar year 193

y. .....................................

ater year 1939-4(

Mar.

11 

10 

10 

10 

10

11

10 

10 

12 

13

12 

12 

11 

12 

13

13 

14 

16 

18 

22

27 

33 

40 

46 

50

54 

50 

48 

45 

40 

42

Apr.

44 

41 

40 

37 

39

39 

38 

39 

40 

42

43 

46 

54 

70 

95

80 

74 

70 

90 

124

132 

135 

142 

137 

133

156 

137 

90 

70 

59

Seoondfoot-days

695 

437 

248.0

21,461.4

232.5 

246.5 

725 

2,336 

5,739 

2,600 

S90 

746 

1,296

16,191.0

May

63 

97 

166 

224 

228

217 

210 

179 

171 

187

189 

179 

206 

224 

192

187 

176 

162 

146 

135

130 

146 

166 

176

184

206 

250 

263 

232 

224 

224

Maximum

32 

24

450

54 

156 

263 

203 

49 

55 

139

263

June

203 

171 

158 

142 

135

123 

115 

110 

99 

86

81 

75 

74 

72 

69

65 

60 

58 

58

56

68 

78 

67 

57 

53

55 

49 

47 

51 

65

July

49 

45 

43 

43 

42

39 

33 

30 

28 

26

26 

24 

26 

26 

23

23 

22 

22 

20 

21

23 

21 

20 

19 

18

23 

37 

30 

29 

32 

27

Minimum

17 

8

-

10 

37 

63 

47 

18 

15 

18

-

Aug.

23 

21 

20 

18 

18

23 

21 

19 

18 

17

16 

16 

15 

15 

17

16 

15 

15 

24 

32

27 

24 

27 

55 

47,

42 

35 

30 

29 

25 

26

Mean

F2.4 

H4.6 

8.0

£3.8

7.5 

8.5 

£3.4 

77.9 

IF1? 

F6.7 

£8.7 

24.1 

*5.2

44.2

Sept.

23 

24 

30 

24 

22

20 

20 

19 

18 

20

20 

21 

26 

21 

21

19 

32 

90 

139 

83

63 

70 

64 

5S 

54

54 

51 

54 

68 

68

Run-off in 

acre-feet

1,380 

867 

492

42,560

461 

489 

1,440 

4,630 

11,380 

5,160 

1,770 

1,480 

2,570

32,120

Hote.- Stage-discharge relation affected by Ice Hov. 16 to Apr. 17.

9-238 February 1936

WITH) STATES DBPAP-TJEHT OF THE INTERIOR 

Qeclog al Surrey
SAN JUAN RIVER BASIN 161

West Fork of San Juan River near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°22'30", long. 106°53'45", in MFi 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,

Drainage area.- 87.9 square miles.

Records available.- April 1935 to September 1940.

Extremes.- Maximum discharge during year, 735 second-feet May 14 (gage teight, 3.25 feet); 

minimum daily, 13 second-feet Jan. 14.

1935-40: Maximum discharge, 2,250 second-feet June 15, 1935 (gage height, 6.83 feet, 

site and datum then in use), from rating curve extended above 1,300 fecond-feet; minimum daily, 10 second-feet Dec. 19, 1937.

Greatest flood known occurred Oct. 5, 1911 (discharge not determired).

Remarks.- Records excellent except those for Oct. 1 to Dec. 13, which are good, and those 

for period of ice effect, which are fair. Diversions above station for Irrigation.

Discharge, in second-feet, irater year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

21

22

23

84

25

26

27

SB

29

SO

51

Oot.

49

47

43

41

39

39

39

50

48

37

37

35

35

33

31

30

30

88

28

87

86

86

86

86

29

48

32

38

33

31

34

HOT.

36

36

34

33

33

35

31

30

34

30

30

30

88

86

86

86

85

85

24

84

86

83

83

83

28

81

81

80

19

19

-

Dec.

80

20

20

21

19

19

18

18

18

18

18

18

17

17

18

*18

18

17

16

14

15

16

17

17

17

17

14

15

16

17

17

Jan.

17

16

17

17

17

16

15

16

17

17

17

16

15

13

15

15

16

16

16

14

15

14

*14

15

18.

17

17

17

16

16

18

Feb.

19

80

19

80

21

80

19

19

19

80

21

82

81

80

22

82

81

28

83

88

»23

84

25

85

85

84

85

26

28

-

-

Month

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

Calendar year 1939. .....................

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

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

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

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

Water year 1939-4 0......................

Mar.

86

83

88

81

20

21

81

88

85

87

85

83

21

83

27

83

40

40

4S

55

63

78

96

109

122

184

105

96

80

78

89

Apr.

85

74

71

6S

75

75

74

75

80

83

81

85

111

154

164

147

137

140

180

884

844

244

864

864

847

261

264

811

183

157

-

Seoondfoot-days

1,077

S18

540

38,843

495

637

1,603

4,582

12,384

5,852

1,638

1,294

2,190

32,984

May

149

191

303

419

471

444

466

487

391

419

431

403

466

538

507

466

484

444

363

335

311

307

319

339

355

375

407

435

444

453

468

Mo-rfiim.il

50

36

21

685

18

28

184

864

53 S

448

104

86

200

538

June

448

419

379

335

307

891

264

247

230

205

191

186

ISO

175

170

164

149

135

132

184

130

148

135

113

108

98

91

80

S8

142

-

July

104

S6

77

71

70

66

5S

55

58

50

50

48

46

46

41

48

40

37

35

35

38

35

36

35

33

38

62

95

56

51

50

Minimum

26

19

14

14

13

19

80

68

149

80

33

25

29

13

Aug.

44

40

37

34

38

44

40

36

31

29

28

87

86

27

31

89

27

25

32

49

51

41

39

86

86

75

62

51

50

44

48

Mean

34.7

87.1

17.4

106

16.0

22.0

51.7

151

398

195

5S« S

41.7

73.0

90.1

Sept.

48

39

50

43

38

35

33

31

29

32

34

32

48

38

37

33

38

186

200

149

105

182

109

102

96

95

83

85

126

164

-

^re-fU?

8,140

1,610

1,070

77,040

982

1,260

3,180

8,970

24,440

11,610

3,850

8,570

4,340

65,480

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dec. 14 to Feb. 23.

9-232 February 19S6

UNITED STATES DEPA*1I'MEHT OF THE INTERIOR 

Qeolog al Survey
162 SAN JUAN RIVER BASIN

Turkey Creek near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°22'15", long. 106°56'45", at west side of sec. 10, 

T. 36 N., R. 1 W., 2i miles upstream from mouth and 8 miles northeast of Pagosa Springs.

Drainage area.- 23.0 square miles.

Records available.- May 1937 to September 1940.

Extremes.- Maximum discharge during year, 209 second-feet May 4 (gage height, 2.33 feet); 

minimum daily, 0.4 second-foot July 9-17, 24, 25.

1937-40: Maximum discharge, 602 second-feet May 26, 193P (gage height, 3.20 feet), 

from rating curve extended above 300 second-feet; minimum daily, 0.4 second-foot Sept. 

2F, 1937, July 25, 26, 1939, July 9-17, 24, 25, 1940.

Greatest flocd known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records fair. A large part, of flow diverted from drainage basin above station 

during irrigation season.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

7.5 

7.8 

7.2 

7.2

7.2 

7.8 

12 

10 

8.4

8.4 

9.1 

8.1 

5.5 

5.0

6.8 

6.5 

4.8 

5.0 

4.3

4.0 

4.0

3.8 

3.fi 

4.0

6.2 

5.5 

6.2 

6.0 

6.2 

6.0

HOT.

7.8 

9.9

9.9 

9.9 

8.4

6.5 

6.0

5.7 

6.2 

5.5

5.2 

5.2 

5.0 

5.2 

6.5

6.2 

6.2 

6.0 

6.0 

6.0

6.2 

6.2 

6.0 

6.0 

5.8

6.2 

6.5 

6.2 

6.5 

7.5

Dec.

9.9 

9.1

9.1 

8.8 

8.8

8.4 

8.1 

9.4 

8.4 

8.1

7.8 

7.8 

7.4 

6.5 

6.2

*6.3 

7.8 

7.2 

5.7 

5.2

5.0 

5.5 

5.6 

5.6

5.8

5.6

6.2 

6.4

6.8 

6.8

Jan.

 7.5 

(*)

Feb.

. 8.5 

(«)

Month

Dot 

Nov 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 1939. .....................

ater year 19.39-4

Mar.

10 

10 

10 

10 

10

10 

10 

10

11

12

11 

10 

11 

12

12 

13 

14 

17 

20

23

28 

34 

37 

43

43 

35 

31 

26 

23 

24

Apr.

24 

24

19

21 

19 

21 

21 

21

22 

26 

35 

50

51 

45 

50 

78 

103

91

98 

91 

82 

73

73 

73 

65 

63 

53

Seoondfoot-days

201.6 

196.4 

221.1

9,067.4

232.5 

246.5 

582 

1,494 

2,584 

7 92.. 2 

27.6 

85.7 

251.4

6,915.0

May

55 

67

91 

128 

128

116 

111 

96 

89 

93

89 

82 

89 

98 

89

84

80 

59 

50

45 

53 

71 

69 

71

73 

80 

82 

82 

84 

89

MaxiMun,

12 

9.9 

9.P

175

43 

103 

128 

89 

4.3 

9.4 

44

128

June

89 

80 

69 

61 

59

53 

48 

43 

33 

27

25 

23 

22 

17 

16

14

11 

11 

10 

9.9

9.9 

11 

9.4 

7.2 

6.0

6.0 

5.2 

4.0 

4.5

8.1

July

4.3 

1.8 

1.1 

.9 

.£

.9 

.7 

.6 

.4 

.4

.4 

.4 

.4

.4 

.4

.4 

.4 

.6 

.6 

.6

.5 

.5 

.5 

.4 

.4

.5 

.9 

2.6 

2.2 

1.5 

1.0

Minimi mi

3.6 

5.0 

5.0

.4

10

45 

4.0 

.4 

.7 

1.4

.4

Aug.

0.7 

.7 

.7 

.7 

.7

1.3 

3.2 

2.2

2.0

1.8

1.8 

1.8 

1.7 

1.8 

2.4

2.8 

2.8 

2.6 

2.8 

4.0

3.8 

3.0 

4.0 

9.4 

6.5

5.7 

3.8 

3.2 

2.8 

2.6 

2.4

Mean

P. 50 

6.55 

7.13

24.8

7.5 

8.5 

18.8 

49.8 

F?.4 

26.4 

.89 

2.76 

8.38

18.9

Sept.

2.4 

2.8 

4.0 

3.0

3.0

2.8 

2.8 

2.6 

2.6 

2.6

2.2 

1.8 

1.8 

1.7 

1.7

1.4 

1.4 

7.8 

33 

14

S.4 

18 

13 

9.4 

7.5

7.5 

7.2 

11 

30 

44

Run-off in 

acre-feet

400 

390 

439

17,990

461 

489 

1,150 

2,960 

5,130 

1,570 

55 

170 

499

13,710

 Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice 16-26, Dec. 13-17, Dec. 23 to Mar. 19.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geolo jal Surrey
SAN JUAN RIVER BASIN 163

Rio Blanco near Pagosa Springs, Colo.

Location.- Water-stage recorder, lat. 37°12'45", long. 106°47'40", at center of sec. 1, T. 

34 N., R. 1 E., at highway bridge, 0.4 mile upstream from White Creek and 12.5 miles 

southeast of town of Pagosa Springs.

Drainage area.- 58 square miles.

Records available.- May 1935 to September 1940.

Extremes.- Maximum discharge during year, 506 second-feet May 17 (gage height, 2.97 feet); 

minimum daily, 7.2 second-feet Dec. 27.

1935-40: Maximum discharge, 1,340 second-feet May 17, 1937 (gage height, 4.06 feet), 

from rating curve extended above 600 second-feet; mininum daily, 6.6 second-feet Feb. 

24. 27, 28, 1938.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

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 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

25 

22 

19 

18 

15

13 

14 

21 

22 

23

21 

18 

17 

16 

16

14 

14 

15 

14 

14

13 

12 

13 

13

18

27 

23 

21 

20 

IB 

19

Hov.

23 

22 

21

19

18

18 

20 

18 

18 

22

23 

24

22 

20 

18

17 

16 

16 

14 

13

15 

14 

13 

12 

12

11 

12 

11 

11 

11

Dec.

ll 

11 

11 

12 

11

11

11 

11 

10 

11

11 

1C 

10 

9.6 

10

9.6 

9.6 

9.6 

9.0 

9.0

9.0 

8.4 

8.4 

9.0 

9.0

9.0 

7.2 

3.0 

8.6 

9.0 

9.4

Jan.

9.4 

9.0 

9.4 

9.6 

9.4

8.4 

8.6 

9.2 

9.6 

9.6

9.4 

9.0 

8.0 

7.4 

8.0

8.6 

8.8 

8.4 

8.8 

8.4

9.2 

8.4 

8.0 

8.8 

*9.4

9.4 

9.4 

9.0 

9.4 

9.8 

10

Feb.

11 

12 

10 

11 

10

9.4 

9.4 

9.2 

9.0 

9.0

9.4 

11 

9.4 

10 

11

10 

9.4 

10 

11 

10

11 

11 

*12 

13 

16

16 

16 

17 

21

Month

Oot 

Ho\ 

Dec

C

Jan 

Pel 

Mai 

Apr 

May 

Jan 

Jul 

Aug 

Sep

«

alendar year 1939. .....................

ater year 1939-4

Mar*

22 

21 

21 

19 

19

21 

23 

25 

29

30

27 

26 

29 

32 

32

49 

57 

54 

71 

82

94 

123 

132 

142 

144

127 

103 

82 

66 

71 

76

Apr.

72 

59 

58 

58 

59

56 

54 

56 

53 

52

56 

76 

105 

137 

130

101 

91 

99 

139 

168

176 

189 

157 

152 

147

142 

137 

119 

108 

99

Seoondfoot-days

548 

504 

302.4

21,789.4

277.8 

334.2 

1,849 

3,105 

7,001 

3,268 

921 

914.0 

982

20,006.4

May

108 

139 

178 

220 

220

211 

214 

194 

203 

217

217 

208 

241 

254 

254

266 

310 

362 

257 

226

214 

229 

241 

244 

254

244 

232 

229 

223 

206 

186

^"Trlnnvn

27 

24 

12

320

10 

21 

144 

189 

362 

186 

56 

128 

100

362

June

176 

155 

186 

144 

142

153 

153 

150 

139 

130

122 

115 

117 

122 

117

108 

103 

100 

91

88

79 

72 

70 

70

68

58 

51 

48 

62 

79

July

56

48 

41 

38 

38

33 

32 

30 

25 

23

23 

22 

31 

40 

34

37 

27 

30 

27 

24

24 

29 

24 

21 

20

21 

28 

27 

27 

22 

19

Mln^np^q

12 

11 

7.2

T.2

7.4 

9.0 

19 

52 

108 

48 

19 

9.2 

10

7.2

Aug.

18 

15 

15 

14 

13

16

27

17 

16

17 

14 

13 

13 

13

13 

12

9.B 

9.2 

40

54 

54 

40 

128

88

62 

46 

34 

29 

25 

22

Mean

17.7 

16.8 

9.75

59.7

8.96 

11.5 

59.6 

104 

226 

109 

29.7 

29.5 

32.7

54.7

Sept.

18 

20 

21 

20 

15

13 

16 

IB 

13 

10

11 

18 

33 

24 

21

IB 

27 

79 

100 

60

46

48 

39 

38 

39

33 

27 

33 

50 

74

Run- off In 

acre-feet

1,090 

1,000 

600

43,230

551 

663 

3,670 

6,160 

13,890 

6,480 

1,830 

1,810 

1,950

39,690

Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Dec. 27 to Feb. 23.

9-832 February 1936

UNITED STATES DEPARTIP'NT OF THE INTERIOR 

Qeologici Survey
164 SAN JUAN RIVER BASIN

Rito Blanco near Pagosa Springs, Colo.

Location'.- Water-stage recorder, lat. 37°11'40", long. 106°54'20", in SWi se?.. 12, T. 34 

N., R. 1 W., at road crossing 500 feet upstream from Sheep Cabin Creek and 75 miles 

southeast of town of Pagosa Springs. Prior to Nov. 21, 1939, water-stage recorder at 

site 100 feet upstream at datum 2 feet higher.

Drainage area.- 23.3 square miles.

Records available.- May 1935 to September 1940.

Extremes.- Maximum discharge during year, 134 second-feet May 17 (gage height, 2.31 feet); 

no flow Aug. 18, 19.

1935-40: Maximum discharge, 310 second-feet June 9, 1935 (gage height, 2.87 feet, 

site and datum then in use); no flow July 25, Aug. 13, 14, 16-18, 20, 24-26, 1939, Aug. 

18, 19, 1940.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records good except those for periods of ice effect, which are fair. Diversions 

above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

Z 

4 

S

6

7

e

9 

10

11

12 

13 

14

15

16 

17 

18 

19 

20

21 

82 

23 

24

es

26 

S7 

28 

29 

30 

31

Oct.

1.5 

1.4 

1.2 

1.1

1.1

1.1 

.7 

.5 

.6 

.5

.4

.4 

.4 

.4 

.4

.4 

.4 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.3

.S 

.7 

.4 

.4 

.4 

.4

HOT.

0.4

.2 

.2 

.2 

.2

.2 

.2 

.1 

.3 

.3

.2 

.3 

.3 

.2 

.3

.4 

.4 

1.1 

1.0 

1.4

1.5 

1.5 

1.6 

1.6 

1.1

1.4 

.9 

1.1 

.8 

.S

Dec.

0.6

.8 

.8 

.9 

1.1

1.1 

1.1 

1.1 

1.4 

1.5

1.

1. 

1. 

1 , 

1.

.5 

.4

.3 

.4 

.5 

.6

Jan.

0.7 

.6 

.7 

.7 

.7

.6 

.6 

.7

.8 

.8

.8 

.7 

.7 

.6 

.7

.8 

.9 

.8 

.9 

.8

.9 

.8 

.8 

.9 

*.9

1.0 

.9 

1.0 

1.0 

1.1 

1.1

Feb.

1.2 

1.3 

l.S 

1.3 

1.2

1.1 

1.2 

1.2 

1.4 

1.2

1.4 

1.4 

1.4 

1.5 

1.5

1.4 

1.2 

1.2 

1.3 

1.2

1.1 

1.2 

*1.2 

1.0 

.9

.9 

.8 

.9 

.9

Month

dot 

Hov 

Dec

C

Jaa 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

«

alendar year 1939. . ....................

uary

ater year 1939-4 0. .....................

Mar.

1.0 

.8 

.8 

.7 

.7

.9 

1.0 

1.0 

1.4 

1.6

1.5 

1.7 

1.8 

2.4 

2.7

4.3 

6.1 

7.0 

8.6 

10

13 

16 

20 

25 

28

26 

20 

17 

14 

14 

15

Apr.

15 

14 

12 

12 

13

12 

12 

14 

14 

15

15 

20 

30 

43 

44

33 

27 

26 

34 

54

58 

58 

68 

58 

49

51 

52 

38 

33 

26

Secondfoot-days

18.1 

20.2 

24.7

3,351.0

25.0 

34.7 

264 

950 

1,714 

370.8 

54.7 

19.5 

42.4

3,538.1

May

26 

36 

56 

70 

72

66 

64 

54 

49 

49

43 

36 

37 

44 

54

60 

82 

118 

92 

70

54 

54 

62 

56 

51

46 

46 

46 

41 

40 

40

Masimu*

1.5 

1.6 

1.5

68

1.1 

1.5 

28 

68 

118 

38 

7.4 

2.1 

7.0

118

June

38 

37 

34 

31 

26

24

21 

18 

17 

15

11 

9.5 

9.0 

8.6 

8.6

8.2 

7.4 

6.1 

5.3 

4.3

4.0 

4.0 

3.4 

2.7 

2.7

2.4 

2.1 

1.4 

1.7 

7.4

July

4.0 

3.4 

2.4 

1.6 

1.7

1.8 

1.4 

1.2 

1.4 

1.0

1.0 

.9 

.8 

1.0

1.2

1.1 

1.0 

.9 

.7 

.6

1.2 

7.4 

5.7 

2.4 

1.4

.9 

I. 1 / 

1.5 

1.5 

1.2 

.7

V^Ti^imim

0.3 

.1 

.3

0

.6

.8 

.7 

12 

26 

1.4 

.6 

0 

.3

0

Aug.

0.6 

.6 

.5 

.3 

.2

.5 

1.0 

.9 

.5 

.3

.4 

.3 

.2 

.2 

.2

.2 

.1 

0 

0

.6

2.1 

1.2 

.8 

1.6 

1.6

1.2

1.5 

.7 

.6 

.3 

.3

Mean

0.58 

.67 

.80

9.18

.81 

1.20 

8.52 

31.7 

55.3 

12.4 

1.76 

.63 

1.41

9.67

Sept.

0.4 

.4 

.5 

.5 

.5

.4 

.4

.3 

.3 

.3

.3 

.3 

2.1 

.6 

.6

.5 

.5 

4.0 

7.0 

3.4

2.1 

2.7 

2.1 

1.7 

2.1

1.6 

1.5 

1.5 

2.1 

1.7

Run-off in 

acre- feet

36 

40 

49

6,650

50 

69 

524 

1,SSO 

3,400 

735 

108 

39 

84

7,010

 Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by Ice Dec. 27 to Feb. 7, Feb. 17 to Mar. 4.

9-232 February 1936

TJNITED STATES DEPAF'"MEHT OF THE INTERIOR 

Oeolog. J. Surrey
SAN JUAN RIVER BASIN 165

Navajo River at Banded Peak ranch, near Chromo, Colo.

Location.- Water-stage recorder, lat. 37°05'00", long. 106°41'30", In rwi sec. 24, T. 33 

N., R. 2 E., on Banded Peak ranch, half a mile downstream froii Aspen Creek and 9 

miles northeast of Chromo.

Drainage area.- 69.8 square miles.

Records available.- April 1937 to September 1940.

Extremes.- Maximum discharge during year, 500 second-feet May 31 (gage height, 3.05 

reet); minimum dally, 12 second-feet Dec. 28.

1937-40: Maximum discharge, 876 second-feet May 2S, 1938 (gage height, 3.42 feet); 

minimum dally, that of Dec. 28, 1939.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records good except those for periods of Ice effect, which are fair. No dlversion or regulation above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

SO.

22

23

24

25

26

27

28

29

SO

31

Oct.

35

33

32

32

31

30

30

54

33

33

32

32

32

31

32

31

31

31

31

30

30

30

29

29

30

32

27

28

27

27

27

HOT.

27

27

27

27

27

26

27

27

29

26

25

26

26

26

25

25

25

24

25

24

25

25

25

24

23

SS

21

20

21

21

-

Dec.

19

20

20

21

21

22

22

22

22

22

21

20

20

21

20

19

19ie

18

19

18

16

16

14

14

14

13

12

14

16

18

Jan.

20

19

18

18

18

18

18

19

20

21

21

20

19

16

17

18

20

19

20

16

20

19

18

20

19

20

19

20

22

23

23

Feb.

22

22

21

20

20

18

19

19

18

18

19

21

20

21

22

21

20

22

23

22

21

24

23

22

22

23

22

23

24

_

-

Month

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

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

Mav.. ... .. ......

f"Sep

Water year 1939-4(

Mar.

25

24

23

22

23

24

24

25

26

26

25

26

30

33

36

41

42

43

48

58

76

84

99

107

126

124

105

90

76

78

84

Apr.

92

84

76

76

80

78

76

78

80

86

86

99

136

167

159

136

121

121

14S

193

212

227

236

224

185

190

193

159

141

126

-

Seoondfoot-days

952

751

571

30,720

600

612

1,673

4,065

9,460

5,169 

1 422

1^463 

1,341

28,079

May

126

156

221

269

291

304

313

297

294

329

336

332

361

377

394

408

419

3SO

294

246

228

240

243

264

258

279

324

349

363

377

388

Maximum

35

29

22

415

23

24

126

£36

419

391

68

137 

80

419

June

391

360

335

304

282

264

246

237

204

185

172

161

151

161

159

144

137

127

122

118

110

108

99

95

90

90

82

79

76

80

-

Jay

68

61

58

55

53

50

52

48

45

44

43

43

46

45

42

46

43

42

39

3S

37

49

46

40

38

39

40

46

46

42

38

Minimum

27

20

12

12

16

18

22

76

126

76

37 

30 

29

12

Aug.

38

36

34

32

32

36

40

42

35

37

36

32

31

30

32

37

37

31

34

80

64

61

61

137

88

66

60

52

49

44

39

Mean

30.7

25.0

18.4

84.2

19 4

2l!l

54.0

136

305

IV 2

45.9 

47.2 

44.7

76.7

Sept.

36

38

39

37

32

34

36

34

30

30

29

45

50

39

37

34

38

70

80

53

50

56

50

49

50

46

44

45

52

76

-

Run-off in 

acre-feet

1,S90

1,490

1,130

60,910

1,190

1,210 

3,320

8,060

18,760

10,250

2y820 

2,900 

2,660

55,680

Hote.- Stage-discharge relation affected by ice Dec. 27-31, Jan. 14-23, Pet. 6-21.

8-232 February 1956

UNITED STATES DEPAP^MEHT OP THE INTERIOR 

Qeolog il Survey
166 SAN JUAN RIVER BASIN 

Navajo River at Edith, Colo.

Location.- Water-stage recorder, lat. 37°00'10", long. 106°54'20" (revised) In NWi sec.

 24, T. 32 N., R. 1 W., at highway bridge at Colorado-New Mexico State line, a quarter

of a mile east of Edith and 1 mile upstream from Coyote Creek. 

Drainage area.- 165 square miles. 

Records available.- September 1912 to December 1914 and June 1935 to September 1940 In

 reports of Geological Survey. September 1912 to December 1928 and June 1935 to

September 1940 In reports of Colorado State engineer. September 1912 to December

1928 In reports of New Mexico State engineer. 

Average discharge.- 21 years, 183 second-feet. 

Extremes.- Maximum discharge during year, 635 second-feet May 18 (gage height, 3.41

feet); minimum dally, 19 second-feet Dec. 28.

1935-40: Maximum discharge, 2,370 second-feet Apr. 15, 1937 (gage height, 5.77

feet), from rating curve extended above 1,200 second-feet; minimum dally, that of

Dec. 28, 1939.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined). 

Remarks.- Records excellent except those for period of ice effect, which are fair. Dlversions above station for Irrigation.

Rating table, water year 1939 40, except period of Ice effect (gage height, ir feet, and

discharge, in second-feet) 

(Shifting-control method used July 23 to Sept. 30)

C.8 22 1.1 45 2.1 206 

.9 28 1.3 68 2.6 330 

1.0 36 1.7 130 3.2 540

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

80

81 

22 

23 

24 

25

26 

27 

28 

89 

30 

31

Oct.

44

42 

40 

39 

39

38 

3S 

43 

45 

42

40 

39 

36 

30 

2f>

28

27 

26 

27 

28

29 

29 

29 

30 

30

38 

33 

34 

33 

30 

31

. HOT.

32 

32 

31 

32 

33

34 

33 

30 

37 

36

33 

34 

33 

30 

29

29 

2S 

29 

29 

29

29

28 

27 

28 

28

28 

29 

27 

26 

26

Dec.

24 

25 

25 

26 

26

26 

26 

25 

26 

26

25 

26 

24 

23 

23

24 

26 

25 

23 

23

21 

20 

20 

21 

21

23 

21 

19 

20 

22 

23-

Jan.

23 

23 

24 

24 

24

24 

23 

25 

26 

27

27 

26 

25 

24 

25

26 

27 

26 

27 

26

27 

26 

26 

28 

*28

28 

28 

27 

28 

30 

31

Feb.

32 

31 

29 

31 

30

29 

31 

32 

31 

31

32 

33 

31 

33 

35

34 

32 

35 

37 

35

33 

*38 

36 

35 

35

36 

35 

36

40

Month

Dot 

HOT 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 193 3......................

ater year 1939-4

Mar.

43 

39 

37 

35 

40

39 

3S 

42 

45 

47

44 

42 

48 

54 

60

70 

88 

86 

96 

105

141 

162 

188 

206 

226

228 

200 

186 

141 

130 

150

Apr.

156 

157 

130 

130 

134

125 

124 

124 

125 

127

128 

139 

174 

238 

286

228 

202 

192 

224 

292

333 

333 

354 

345 

286

281 

286 

240 

221 

196

Seoondfoot-days

1,066 

909 

728

41,413

809 

968 

3,056 

6,309 

11,522 

5,674 

1,544 

1,525 

1,429

35,539

May

186 

217 

281 

357 

386

392 

392 

364 

342 

378

381 

374 

423 

454 

468

482 

520 

528 

398 

336

302 

302 

316 

319

313

313 

357 

402 

402 

409 

426

Maxfcnu*

45

37 

26

500

31 

40 

228 

354 

528 

430 

75 

137 

88

528

June

430 

402 

360 

333 

310

281 

262 

247 

233 

198

192 

178 

168 

172 

174

170 

155 

152 

139 

127

120 

116 

111 

106 

100

95 

87 

82 

82 

92

July

75 

69 

64 

63 

62

64 

57 

55 

60 

48

47 

44 

47 

48 

45

50 

46 

49 

46 

41

40 

40 

57 

44 

39

39 

40 

43 

46 

46 

40

Aug.

40 

39 

35

31 

30

35 

36 

44 

35 

31

37 

31 

30 

27 

27

29 

34 

28 

27 

62

88 

71 

72 

137 

109

76 

68 

58 

57 

53 

48

Minimum Hear

26 34.4 

26 30.3 

19 23.5

19 113

23 26.1 

29 33.4 

35 98.6 

124 F10 

186 J72 

82 189 

39 49.8 

27 49.2 

29 47.6

19 97.1

Sept.

46 

44 

48 

45 

42

40 

42 

35 

31 

29

30 

30 

60 

35 

35

 31 

33 

55 

87 

56

46 

56 

54 

49 

54

55 

54 

56 

63 

88

Run-off in 

acre-feet

2,110 

1,800 

1,440

82,130

1,600 

1,920 

6,060 

12,510 

22,850 

11,250 

3,060 

3,020 

2,830

70,450

*Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected ice nee. 21 to Mar. 20.

9-232 February 1936

UNITED STATES DEPAF'"MEHT OF THE INTERIOR 

Qeolog. il Surrey
SAN JUAN RIVER BASIN 

Little Navajo River at Chromo, Colo.

167

Location.- Water-stage recorder, lat. 37°02'10", long. 106°&0'35", in SEi sec. 4, T. 32

N., R. IE., at highway bridge at Chromo, a quarter of a mile upstream from mouth.

Prior to Nov. 21, 1939, water-stage recorder at site 400 feet downstream at different

datum.

Drainage area.- 21.9 square miles. 

Records available.- May 1935 to September 1940. 

Extremes.- naximum discharge during year, 63 second-feet Apr. 14 (gage height, 2.66

reet); minimum daily, 0.1 second-foot June 20 to Sept. 27.

1935-40: Maximum daily discharge, 240 second-feet (estimate"!) Apr. 15, 1937; no

flow Aug. 31, 1938, and July 7, 1939.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined). 

Remarks.- Records excellent Apr. 15 to May 31; others good except those for periods of

ice effect, which are fair. Diversions above station for Irrigation.

Rating tables, water year 1939-40, except periods of Ice effect (gage height, In feet, and

discharge. In second-feet) 

(Shifting-control method used Dec. 9-25, Jan. 4-13, Jan. 25 to Feb. 6, Feb. 12 to Apr. 15)

Oct. 1 to HOT. 21 Nor. 22 to Sept. 30

2.8 0.9 1.2 0.1 1.7 3.2 2.2 24 

2.9 l.S 1.3 .3 l.S 5.8 2.3 31 

3.0 4.4 1.4 .6 1.9 9.0 2.5 50 

1.5 1.0 2.0 13 

1.6 1.0 2.1 18

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4

S 

6

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

81 

22 

25 

24 

25

26 

27 

28 

29 

30 

51

Oct.

1.4 

1.4 

1.3 

1.3

1.6 

1.6

1.7 

2.3 

2.3

1.8

1.7 

1.7 

1.6 

1.6 

1.7

1.6

1.6

1.6 

1.6

1.6 

1.6 

1.7 

1.6 

1.7

2.8 

2.3 

2.1 

2.1 

1.7 

1.7

IOV.

1.4 

1.1 

1.3 

1.4

1.4 

1.4

1.4 

1.5 

2.3

2.1 

2.6 

2.6

2.8

3.4

2.6

2.3 

2.8

2.6 "2,4

2.6 

2.2

1.5 

1.5 

1.4 

1.2 

1.3

Dec.

1.0 

1.2 

1.3

1.6

1.6

1.5

1.4 

1.4

1.6

1.4 

1.3 

1.4

1.4

1.7 

1.9

I.'

1.4

1.6 

1.5

1.4 

1.3

1,3 

1.2 

1.2 

1.1 

1.2 

1.3

Jan.

1.4 

1.5 

1.5 

1.6

1.6 

1.6

1.6 

1.6 

1.6

1.5 

1.5 

1.5

1.3

1.3 

1.2

1.3 

1.4

1.3 

1.3

1/4 

1.5

1.4 

1.3 

1.2 

1.3 

1.3 

1.4

Feb.

1.5 

1.5 

1.6 

1.6

1.6 

1.6

1.5 

1.5 

1.4

1.3 

1.3 

1.2

1.3

1.2

1.1

1.2 

1.0

1.0 1.1

1.2 

1.2

1.2 

1.2 

1.6 

1.9

Month

Dot 

Son 

Dec

C

Jan 

Pet 

Mar 

Apr 

Jfaj

Jut,

Jul Aua

Se] 

!

uary

ater year 1939-4

Mar.

1.9 

1.8 

l.S 

1.6

1.8 

1.8

2.4 

2.1 

3.1 

3.1

2.8 

2.8 

3.5 

3.5 

6.3

12 

14 

14 

16 

16

16 

21 

22 

25 

26

24 

21 

17 

12 

11 

12

Apr.

13 

13 

11 

11 

11

11 

9.6 

9,8 

11 

12

12 

14 

23 

39 

39

34 

30 

28 

35

41

42 

42 

40 

38 

36

36 

37 

33 

30 

26

Seoondfoot-days

53.9 

59.3 

43.9

3,367.2

43.9 

38.5 

318.3 

767.6 

651.1 

36.5 

3.1 

3.1 

3.9

2,023.1

May

27 

30 

36 

39 

39

36 

34 

27 

23 

22

18 

14 

IS 

16 

16

15 

22 

28 

23 

21

18 

19 

21 

16 

12

12 

12 

11 

9.4 

9.0 

7.7

MfrX^ff"m

2.8 

3.4 

1.9

78

1.6 

1.9 

26 

42 

39 

5.8 

.1 

.1 

.8

42

June

4.5 

5.S 

4.5 

4.5 

3.5

2.5 

2.4 

2.? 

1.7 

,£

.4

'.4

.e 

.?

'.2 

.2

.2 

.1

.1 

.1 

.1

.1 

.1

.1 

.1

.1 

.1 

.1

July

0.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Aug.

0.1 

.1 

.1 

,1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Sept.

0,1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.S

MiniMun Mean «££%£

1.3 1.74 107 

1.1 1.98 118 

1.0 1.42 87

0 9.23 6,680

1.2 1.42 87 

1.0 1.33 76 

1.6 10.3 631 

9,8 25.6 1,620 

7.7 21.0 1,290 

.1 1.22 72 

.1 .10 6.1 

.1 .10 6.1 

.1 .13 7.7

.1 5.53 4,010

Hote.- Stage-discharge relation affected by ice Dec. 26 to Jan. 3, Jan. 14-24, Feb. 7-11.

f-ZZZ February 1936

UNITED STATES DEPAP^HEHT OP THE INTERIOR 

Qeolog al Surrey
168 SAN JUAN RIVER BASIN

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

Location.- Water-stage recorder, lat. 37°25'30n , long. 107°11'30", In sec. 22, T. 37 N., 

K. 3 w., a quarter of a mile downstream from Bridge ranger station, 1 mile downstream 

from Middle Fork, and 15 miles northwest of town of Pagosa Springs.

Drainage area.- 82.3 square miles.

Records available.- April 1937 to September 1940.

Extremes.- Maximum discharge during year, 586 second-feet May 14 (gage height, 2.39 

feet); minimum dally, 10 second-feet Aug. 10-14, 18.

1937-40: Maximum discharge, 1,060 second feet May 28, 1938 (gage height, 3.90 

feet); minimum discharge not determined.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

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

which are fair. A few small diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

Z

4

5

6

'/

8

9

10

11

12

13

14

15

16

17

18

19

no

21

£2

Hi 24

us

26

87

28

89

SO

31

Oct.

55

52

50

45

40

36

34

47

41

35

33

32

31

29

27

27

27

26

26

25

23

23

19

20

23

37

26

29

31

29

35

Nov.

36

35

32

30

30

29

26

24

26

22

22

21

26

23

24

24

22

20

18

16

17

16

16

15

15

15

15

15

15

14

Dec.

f 12

(*)

'

Jan.

\ 14

'

Feb.

> 16

t

_

-

Month

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

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

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

Water year 1939-40

Mar.

18

19

19

20

21

22

22

23

24

24

24

21

19

20

25

27

29

31

35

42

54

70

90

111

115

104

88

72

61

VO

69

Apr.

62

61

53

52

55

55

50

50

53

53

50

55

80

116

111

89

89

104

147

190

196

201

215

198

178

192

188

14£

116

98

-

Seoondf oo t -days

372

26,815

434

1,746

22,694

May

102

14S

238

348

367

348

360

29E

27S

32C

32C

302

345

414

364

328

328

29<

233

211

193

19E

223

225

223

24S

28<

30C

308

322

339

Kayj^jpnq

 ta

 

204

414

June

314

275

245

220

206

180

152

137

121

106

98

91

91

85

81

76

68

65

59

56

58

66

62

53

46

43

39

35

39

76

_

July

50

40

33

34

36

33

29

27

22

18

17

17

18

16

15

15

15

16

18

16

18

15

14

14

13

13

IS

19

16

18

16

Minimum

19

_

ie

-

Jug.

14

13

12

11

12

13

13

12

11

10

10

10

10

1C

13

15

11

10

15

22

24

22

25

46

54

50

36

30

28

25

22

Mean

32 7

12

73.5

44 8

O-l <Z

58.2

62.C

Sept.

19

19

35

31

25

23

21

17

19

16

15

14

13

13

13

14

17

111

152

108

85

105

91

77

73

76

72

95

173

204

-

Run-off In 

aore-feet

V38

53 ,190

3,460

45,020

*Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 17 to Har. 23. Ho gage-height record July 

'4-20, 22-26, 28, 31, Aug. 1-19, Sept. 1O-17, 20; discharge computed on basia of records for 

Williams and Weninuehe Creeks near bridge ranger station, near Pagosa Springs.

February 1936

UNITED STATES DEPAPTIENT OF THE INTERIOR 

Oeolog al Surrey
SAN JUAN RIVER BASIN 

Piedra River near Piedra, Colo.

169

Location.- Water-stage recorder, lat. 37°15', long. 107°20', in sec. 5, T. 34 N., R. 4 

W., it miles above crossing of U. S. Highway 450, 2 miles upstreem from Yellow Jacket 

Creek, and 3 miles north of Piedra. Station is 2 miles upstream from staff gage at 

Piedra used 1911-12 and li miles upstream from chain gage used Oct. 1, 1939, to 

Mar. 19, 1940. Datum of gage is 6,585.0 feet above mean sea level (planetable survey by the Bureau of Reclamation).

Drainage area.- 371 square miles.

Records available.- November 1911 to July 1912, October 1939 to September 1940.

Extremes.- Maximum discharge during year, 1,220 second-feet May 5 (gage height, 4.43 

reet); minimum daily, 23 second-feet Dec. 20.

1911-12, 1939-40: Maximum discharge observed, 3,000 second-feet May 27, 1912 

(gage height, 4.6 feet, site and datum then in use); minimum daily, that of Dec. 

20, 1939.

Remarks.- Records excellent except those July 1-31, which are good, and those for peri-

 ods of ice effect or no gage-height record, which are fair. Chain gage read twice 

daily Nov. 1 to Mar. 19. Diversions above station for irrigation.

Rating tables, water year 1939-40, except periods of lee effect

discharge, In second-feet) 

(Shifting-control method used June 30 to July 29)

;e Ieight, in feet, and

HOT. 1 to Mar. 19

1.7

1.8 

2.1

2.3

2.4

103

122

Mar. 20 to Sept. 30

1.3

1.4

1.5

1.6 

1.9

34

40

50

63

120

8.2

2.4 

2.9 

3.5 

4.2

192

250

435

705

1,080

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

a

z

4

S

6

7

8

9

10

11

18

13

14

16

16

17

18

19

80

81

82

83

84

85

86

87

88

89

30

31

Oct.

 aeo

HOT.

75

74

74

74

74

82

77

75

77

70

74

66

68

61

61

55

51

51

55

53

54

52

50

48

49

50

50

49

46

44

~

Dec.

42

42

44

45

45

43

43

45

43

45

43

37

34

32

36

36

43

32

25

23

27

28

34

33

36

30

25

27

29

34

36

Jan.

38

36

40

42

42

40

36

38

42

44

43

40

38

35

37

40

44

43

44

40

44

43

40

42

44

«46

48

47

47

47

47

Feb.

47

53

49

49

49

27

49

49

42

37

49

51

37

36

45

41

47

45

47

49

45

48

48

47

53

60

48

51

55

-

-

Month

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

Jam 

Peb

Man 

Anr

wry...................................

3h. ....................................

11..................................... May7. ;.;;;;.;.;;;:;;..:;;:;:;:;:;;"; "."

Augi 

Sep

ut............... .....................

Water year!939-4C

Mar.

59

59

65

65

65

68

71

70

75

73

62

61

55

59

81

85

87

96

111

124

152

192

244

292

344

363

330

302

257

264

296

Apr.

292

257

220

206

232

232

214

223

223

229

217

241

316

453

494

431

379

379

494

682

800

770

820

740

669

664

705

561

480

411

-

Second - 

foot-days

2 480

1 ,841

1,117

_

1,297

1*355 

4,527

13,034

oo 9QP

7*038

2 5V5 1)919 4,361

64,536

May

379

466

678

944

1,030

944

996

690

810

690

905

860

825

978

932

835

850

885

682

628

579

561

602

588

574

588

628

628

620

602

615

Maximum

82

45

_

48 

60

363

820

1,030

6X0

164 

161 

476

1,030

June July

610 164

561 124

502 106

453 104

415 131

383 127

334 108

302 100

278 90

241 83

220 80

206 76

203 76

192 76

179 76

187 72

169 74

152 72

138 67

133 63

131 81

129 68

140 65

116 56

104 54

96 49

10C 62

9C 74

85 81

188 60

56

MininniET

44 

23

_

35

2V 

55

S06

5V 9

QCoo

49 

36 

44

25

Aug.

46

47

45

41

39

42

53

53

44

40

40

39

38

38

38

40

39

36

38

60

87

65

70

108

161

154

110

89

85

72

60

Mean

80.0

61.4 

36.0

_

41.8

46.7 

146

434

742

235

85 ! 

61.9 

145

176

Sept.

60

55

67

70

60

55

51

48

47

47

50

48

49

49

47

45

44

192

458

313

223

257

238

198

182

182

179

176

395

476

Run-off in 

acre-feet

4,920

5 f 65C 

8,280

_

2,570

2f69C 

8,980

&5f85G

45,600

13,960

5,110 

3,810 

8,650

128,000

 (Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for San Juan River at Pagosa 

Springs.

Hote.- Stage-discharge relation affected by Ice HOT. 20 to Dec. 3, Dec. 19 to Jan. 27, Feb.

9-838 February 1936

TJNITKD STATES DEPAP"1MEHT OF THB INTERIOR 

Oeolog. il Surrey
170 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., 

R. 3 W., 24 miles north of Bridge ranger station, 3J miles upstream from mouth, and 

17 miles northwest of town of Pagosa Springs.

Drainage area.- 43.7 square miles.

Records available.- Nay 1937 to September 1940.

Extremes.- Maximum discharge during year, 222 second-feet May 6 (gage height, 2.45 feet); 

mltilmum discharge observed, 4.7 second-feet Dec. 17 (discharge measurement, but may 

have been less during period of Ice effect.

1937-40: Maximum discharge, 687 second-feet June 29, 1938 (gage height, 3.24 feet 

from rating curve extended above 350 second-feet; minimum not determined.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

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

which are fair. No diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

25

25

25

26

26

27

27

27

21

18

18

18

18

17

17

a!5

al4

a!4

a!4

al4

al4

a!3

a!3

al2

al4

a!6

14

15

15

14

15

HOT.

16

17

16

15

15

16

15

14

15

14

13

12

11

9.6

9.2

 9.0

8.5

8.0

8.0

8.0

8.2

8.0

8.0

7.6

7.6

7.8

8.0

7.5

7.4

7.4

-

Dec.

. 6.2

(*)

'

Jan.

 6.0

Feb.

> 8.4

_

-

Month

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

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

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

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

Water year 1939-4C ......................

Mar.

X

 25

Apr.

50

45

41

43

47

46

45

44

43

41

42

47

52

64

88

80

72

74

88

125

140

140

149

138

115

108

105

86

74

64

-

Seoondfoot-days

561

326.8

192.2

13,201.6

210.8

243.6

775

2 296

3 > 928

1,042 

430

389 7

1, 024U

11,419.7

May

62

76

118

164

170

170

180

164

161

180

177

167

167

174

167

152

149

135

110

105

100

95

102

95

100

82

80

82

78

86

80

^mrfrowH

27

17

194

149

180

70

23

28

102

180

June

70

64

60

56

54

48

47

46

44

42

39

36

38

35

35

35

32

28

26

25

22

21

18

17

16

17

15

14

14

28

-

July

23

a!9

al6

a!7

a!8

a!5

14

a!3

al4

a!2

all

alO

alO

alO

all

all

all

11

10

12

18

14

14

13

11

10

15

22

15

17

13

Minimum

12

7.4

_

41

14

10

7.5

8.5

-

Aug.

11

10

9.6

9.0

9.6

13

11

10

8.5

8.0

7.5

7.5

7.5

8.5

9.0

8.0

7.5

7.5

11

15

14

13

13

22

28

28

21

17

16

15

14

Mean

ie.i

1C. 9

e.2

se.2

6.8 e.4

2e

76.5

127

 z* 17 Ofl. . f

13.9

If. 6

34.2

31.2

Sept.

13

13

10

10

12

13

9.0

9.0

8.5

9.0

9.0

9.0

9.0

9.6

9.0

8.5

10

54

72

47

37

46

56

52

90

59

57

90

102

92

-

Run-off In 

acre-feet

1,110

648

381

26,190

418

483

1,540

4,550

7,790

2,070

853

773

2,030

22,650

 Winter discharge measurement made on this day.

a Ho gage-height record} discharge computed on basis of records for Wemlnuohe Oreek near Bridge 

ranger station.

Note.- Stage-discharge relation affected bjr Ice Nov. 11 to Apr. 16.

( -832 February 1936

UNITED STATES DEPAPTMEHT OP THE INTERIOR 

Oeolog. al Surrey
SAN JUAN RIVER BASIN 171

Wemlnuche 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., 

K. 3 W., 3i miles northwest of Bridge ranger station, 5 miles upstream from mouth, 

and 19 miles northwest of town of Pagosa Springs.

Drainage area.- 53.4 souare miles.

Records available.- April 1937 to September 1940

Extremes.- Maximum discharge during year, 232 second-feet May 5 (gage height, 3.11 feet); 

minimum discharge observed, 2.2 second-feet Dec. 17 (discharge measurement), but may 

have been less during period of Ice effect.

1937-40: Maximum discharge, 651 second-feet June 29, 1938 (gage height, 4.73 feet), 

from rating curve extended above 400 second-feet; minimum not determined.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

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

wnicn are fair. A few diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to Septembe" 194O

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14

15

16

17 

18 

19 

20

SI 

22 

23

at

25

26 

27 

28 

29 

80 

51

Oct.

24 

22 

21 

20 

18

IB 

17 

35 

29 

22

21 

22 

21 

IB 

18

17 

16 

15 

15 

15

15 

14 

14 

13 

15

23 

19 

2O 

22 

20 

22

HOT.

22

20 

18 

19

17 

16 

16 

18 

15

15 

14 

12 

11 

1O

*1O 

9 

8.5 

8.2 

B.4

8.5 

8.5 

8.2 

B.O 

8.0

8.2 

8.2 

8.2 

B.O 

7.B

Dec.

 6.O 

(*) 

Jan.

 6.5

Feb.

> 9.0

Month

Dot 

Hot 

Dec

C

Jan 

Pet 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

«

nary

«ter year 1939-4

Mar.

11 

11 

12 

12 

12

13 

13 

14 

14 

15

14 

13 

32 

14 

IB

19 

20 

21 

24 

27

31 

37 

46 

57 

7O

80 

76 

70 

64 

60 

66

Apr.

61 

49 

44 

45 

52

52 

49 

48 

46 

45

44 

47 

59 

87 

93

80 

74 

75 

100 

126

143 

140 

147 

136 

125

123 

allO 

a95 

a8O 

a6B

Seoondfoot-days

6O1 

370.7 

1B6.0

14,273.8

201.5 

261.0 

966 

2,443 

4,101 

1,052 

379.1 

354.6 

1,061.0

11,976.9

Winter discharge measurement made on this day. 

a No gage-height record} discharge computed on basis 

ranger station. 

Hote.- Stage-discharge relation affected by Ice Nov.

May

a70 

a85 

129 

166 

185

171 

177 

16O 

156 

172

174 

166 

158 

174 

160

150 

154 

149 

130 

117

108 

105 

104 

99 

98

100 

104 

101 

97 

91 

91

Maximum

35

22

246

BO 

147 

1B5 

88 

27 

33 

117

185

June

88 

82 

74 

67 

62

57 

49 

43 

40 

36

32 

29 

29 

27 

26

33 

29 

26 

23 

21

20 

20 

18 

15 

14

15 

15 

13 

13 

36

July

27 

3H 

15 

13 

15

14 

12 

13 

12 

11

1O 

9 2 

8^9 

8.9 

9.2

9.2 

1O 

10 

9.6 

10

12 

10 

11 

10 

B.9

8.2 

11 

21 

17 

14 

11

Aug.

9.2 

8.6 

7.5 

6.5 

6.2

8.6 

9.2 

8.2 

6.8 

6,0

5.8 

5.2 

5.O 

4.8 

5.0

5.O 

5.O 

4.8 

9.2 

16

14 

13 

18 

31 

33

29 

20 

16 

14 

13 

11

nupjppmi ¥f?Hn

13 19.4 

7.8 12.4 

6.0

39.1

6.5 

9.0 

11 31.2 

44 B1.4 

70 132 

13 35.1 

8.2 12.2 

4.8 11.4 

7.0 35.4

32.7

Sept.

11 

10 

11 

1O 

9.2

8.2 

7.B 

7.2 

7.O 

7.2

7.5 

7.5 

1O 

8.2 

8.2

7.2 

7.B 

96 

117 

82

60 

69 

59 

47 

45

43 

38 

50 

97 

113

Run-off in 

aore-feet

1,190 

735 

369

28,310

400 

51B 

1,92O 

4,850 

8,130 

2,090 

752 

703 

2,10O

23 ,76O

of records for Pledra River at Bridge 

12 to Har, 29.

9-232 400453 O - 41 - 12

UNITED STATES DEPAPITTENT OP THE INTERIOR 

Qeolog al Surrey
172 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 II., 

R. 4 W., 100 feet downstream from Snowslide Canyon, 3i miles south of Weminuche Pass, 

and 7 miles southwest of Rio Grande Reservoir dam.

Drainage area.- 23.8 square miles.

Records available.- October 1937 to September 1940.

Extremes.- Maximum discharge during year, 217 second-feet May 13 (gage height, 2.04 

feet); minimum occurred during period of no record.

1937-40: Maximum discharge, 650 second-feet my 29, 1938 (gage height, 3.26 feet), 

from rating curve extended above 300 second-feet; minimum occurred during period of 

no record.

Remarks.- Records excellent except those for period of no gage-height record, which are 

fair. Two small diversions above station from Los Pinos River Basin to Rio Grande 

Basin.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in aeocnd-feet) 

(Shifting-control method used Sept. 18-30)

0.7 5.0

.8 10.4

.9 16

1.0 22

1.1 30

1.2 40

1.3 62

1.4 66

1.5 81

1.6 101

1.7 125

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14 

13 

13 

12 

12

12 

12 

14 

13 

14

14 

13 

12 

12 

10

10 

9.9 

9.3 

8.8 

8.8

8.8 

8.2 

8.2 

8.8 

8.8

12 

18 

18 

15 

16 

12

Nov.

12 

9.9

s.e

7.7 

7.7

5.5 

7.2

7.2 

5.0 

7.7

Dec. Jan. Feb.

Month

Oot 

Hot

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sap

W

'ember 1-

alendar year

11.....................................

ater year

Mar. Apr.

45

Seoondfoot-dsys

370.6 

78.7

-

1,350 

2,394 

753 

345.2 

288.0 

630.0

-

May

44 

54 

76 

100

110

100 

105 

100 

95 

106

108 

91 

111 

115 

106

93 

80 

66 

62 

56

52 

48 

52 

58 

59

63 

65 

58 

55 

53 

53

Maximum

18 

12

-

115 

50 

17 

16 

70

-

June

50 

45 

40 

38 

36

32 

28 

27 

24 

24

28 

28 

26 

25 

25

24 

23 

21 

20 

20

19 

18 

17 

16 

15

15 

15 

14 

16 

24

July

17 

15 

14 

13 

13

13 

13 

14 

13 

13

12 

12 

12 

11 

11

12 

11 

10 

9.3 

9.3

9.3 

8.2 

7.7 

8.2 

7.7

7.7 

9.3 

12 

10 

9.3 

8.2

Minimum

8.2 

5.0

-

44 

14 

7.7 

6.1 

7.2

-

Aug.

7.2 

7.2 

7.7 

6.6 

7.7

10 

9.3 

8.2

7.2 

6.6

6.6 

6.1 

6.6 

6.6 

6.6

6.6 

6.6 

8.8 

12

14

11 

10 

10 

16 

15

14 

12 

11 

11 

9.9 

9.9

Mean

12.0 

7.87

-

45 

77.2 

25.1 

11.1 

9.29 

21.0

-

Sept.

9.3 

9.9 

11 

9.9 

9.3

8.8 

8.8 

8.2

7.7 

7.7

8.2 

8.8 

9.3 

8.2 

7.7

7.2 

12 

70 

58 

39

30 

31 

26 

24 

25

23 

20 

24 

50 

58

Run-off In 

acre-feet735 

156

-

2,680 

4,750 

1,490 

685 

571 

1,250

-

Note.- No gage-height record Apr. 

Weminuche Creek near Bridge ranger

1 to May 9; discharge computed on basis of record'' for 

itatLon.

-232 February 1936

UNITED STATES DEPAP'^MENT OP THE INTERIOR 

Qeolog al Survey
SAN JUAN RIVER BASIN

Los Plnos River near Bayfleld, Colo. 

(Locally known as Pine River)

Location.- Water-stage recorder, lat. 37°21', long. 107°36', in sec. 26, T. 36 N., R. 7 

W., a quarter of a mile downstream from Red Creek and 9 miles north of Bayfield. 

Datum of gage Is 7,415.08 feet above mean sea level (general adjustment of 1912).

Drainage area.- 284 square miles.

Records available.- October 1933 to September 1940 in reports of Geological Survey. 

October 1927 to September 1940 (at present site) and May to September 1926 (at site 

2 miles upstream) in reports of State engineer.

Average discharge.- 13 years, 345 second-feet.

Extremes.- Maximum discharge during year, 1,110 second-feet May 17 (gage height, 3.68 

feet); minimum daily, 10 second-feet Apr. 19-20 (caused by storage in Vallecito 

Reservoir).

1926-40: Maximum daily discharge, 5,070 second-feet May 26, 1936; minimum daily 

(unregulated), 38 second-feet Dec. 21, 22, 1937.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records excellent except those Sept. 18r30, which are good. Natural regulation 

by many lakes. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

B

9

10

11

18

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

169

162

152

143

138

134

132

143

150

13S

134

132

127

125

121

117

113

109

105

102

98

97

95

93

97

127

127

117

117

115

115

Hov.

119

123

123

121

119

123

121

115

117

119

111

111

109

105

102

98

93

93

92

88

88

S7

86

86

84

82

86

86

82

78

-

Dec.

74

74

70

72

75

74

72

70

70

70

70

68

62

59

58

59

60

60

54

53

53

53

54

54

59

58

50

52

55

53

56

Jan.

56

56

56

56

56

53

50

48

53

54

54

59

56

52

50

50

53

56

55

58

54

55

54

54

54

55

55

54

53

54

54

Feb.

56

62

60

59

56

54

54

55

55

58

58

59

59

55

60

56

56

58

55

56

55

56

59

60

59

62

62

62

64

_

-

Month

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

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

Hay.. .....................................

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

Water year 1939-4 0. .....................

Mar.

66

63

64

63

62

62

60

62

6S

70

70

64

59

59

64

70

76

81

S7

93

105

127

157

182

211

238

241

228

208

195

195

Apr.

195

195

184

177

177

179

174

174

172

177

177

1S2

206

267

340

340

302

62

10

10

19

353

554

655

662

588

570

510

434

388

-

Seoondfoot-days

3,844

3,047

1,921

94,660

1,677

1,680

3,450

8,433

10*834

4,090

5^078

6,903

75,347

May

484

588

554

642

768

852

922

958

966

996

1,030

1,040

1,040

1,060

1,070

1,OSO

1,090

1,090

1,040

915

754

754

714

6S1

714

768

768

775

768

768

741

Mqy^Uff 1"?

169

123

75

1,300

59

64

241

662

1,090

727

222

148

582

1,090

June

727

714

694

662

520

4S4

458

484

444

374

345

324

345

345

305

270

270

267

305

324

274

250

247

234

217

206

192

182

174

197

-

July

222

208

190

174

164

155

145

134

127

129

132

119

111

113

115

113

117

127

127

123

119

115

113

113

105

100

104

113

123

121

119

Ifin^imim

93

78

50

50

48

54

59

10

484

174

100

69

68

10

Aug.

113

107

102

95

90

88

98

102

92

86

SO

76

76

76

74

74

74

70

69

87

105

102

100

109

129

143

148

141

132

123

117

Mean

124

102

62.0

259

54.1

5*7 9

inQQ1 Cvi

851

361

132

99 .3

230

206

Sept.

109

105

105

105

98

95

88

88

84

81

SO

76

74

70

69

68

70

152

484

582

542

504

484

439

383

349

324

309

366

520

~

Run-off in 

acre-feet

7,620

6,040

3,810

187,800

3,330

3,330

6,840

16,730

52,340

21,490

8,110

6,110

13,690

149,400

9r-232 February 1936

UMTTED STATES DEPATCENT OP THE IBTERIOR 

Oeolog al Surrey
174 SAN JUAN RIVER BASIN

Los Pinos River at Ignacio, Colo.

Location.- Water-stage recorder, lat. 37°07'45", long. 107°37'50", in sec. 5, T. 33 N., 

R. 7 W., three-quarters of a mile upstream from Ignacio and about 2 miles upstream from 

Rock Creek.

Drainage area.- 448 square miles.

Records available.- April 1899 to October 1903, September 1910 to December 1914, October 

1930 to September 1940 in reports of Geological Survey. April 1899 to October 1903, 

September 1910 to November 1912, March 1913 to December 1931 in reports of State engineer of New Mexico.

Average discharge.- 28 years (1910-11, 1913-40), 373 second-feet.

Extremes.- Maximum discharge during year, 754 second-feet May 17 (gage height, 3.12 feet); 

minimum daily, 1.9 second-feet Aug. 3-5.

1910-14, 1930-40: Maximum discharge recorded, 5,570 second-feet Aug. 27, 1932 (gage 

height, 6.19 feet), from rating curve extended above 2,600 second-feet by logarithmic 

Blotting; minimum discharge observed, 0.1 second-foot Aug. 11, 1913.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined), when gage was 

destroyed.

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

which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

15 

14 

14 

18

21 

17 

25 

22 

23

23 

22 

20 

15

> a25

40 

32 

29 

24 

26

96

88 

74 

69 

67 

67

HOT.

67 

69

74 

94 

94

90 

96 

98 

alOO 

98

92 

88 

87 

85 

81

76 

72 

70 

70 

69

67 

67 

70 

67 

69

72 

77 

79 

79 

77

Dec.

74 

72 

59 

34 

31

31 

29 

29 

29 

37

72 

72 

67 

64 

62

62 

60 

60 

56 

40

45 

45 

60 

55 

60

60 

45 

45 

50 

55 

60

Jan.

60 

55 

60 

65 

60

60 

55 

55 

60 

*60

60 

55 

50 

50 

*50

60 

60 

60 

60 

55

60 

»60 

60 

60 

60

60 

60 

55 

»55 

60 

65

Feb.

70 

65 

60 

69 

64

70 

65 

59 

65 

65

64 

65 

«65 

70 

69

56 

64 

65 

67 

60

59 

64 

67 

69

74

87 

92 

98 

108

Month

Oct 

Hov 

Dec

0

Jan 

Feb 

Mar 

Apr

Jun 

Jul

Set 

W

nary

11................ .....................

 tor year 1939-40. .....................

Mar.

108 

100 

102 

96 

98

102 

96 

108 

138 

126

117 

98 

85 

81 

92

106

117 

124 

126 

129

136 

156 

181 

204 

227

258 

273 

273 

237 

217 

214

Apr.

217 

224 

214 

208 

204

211 

204 

201 

201 

201

201 

208 

220 

273 

341

358 

325 

243 

72 

53

50 

184 

465 

599 

613

550 

490 

445 

333 

265

Secondfoot-days

1 , U29 

2,394 

1,620

58,025.6

1,805 

2,015 

4,525 

8,373 

14,938 

1,129.4 

136.2 

217.2 

4,021.7

42,203.5

May

268 

450 

372 

395

502

571 

620 

641 

634 

648

690 

676 

669 

669 

648

641 

683 

714 

655 

557

410 

354 

321 

258 

240

289 

285 

281 

262 

281 

254

Magnum

96 

100 

74

958

65 

108 

273 

613 

714 

224 

8.0 

24 

425

714

June

224 

214 

192

181 

93

29 

20 

16 

19 

12

8.6 

8.2 

7.7 

8.2 

8.2

7.2 

5.9 

5.9 

5.1 

6.8

8.6 

7.7 

5.9 

5.4 

5.1

4.8 

4.5 

4.5 

4.8 

6.3

July

5.4 

5.1 

4.5 

4.2 

5.1

5.9 

5.9 

4.8 

4.8 

4.2

3.9 

4.2 

4.2

4.5 

3.9

4.2 

8.0 

6.3 

5.1 

4.8

4.8 

4.5 

4.2 

3.6 

3.0

2.7 

3.3 

3.6 

3.0 

2.4 

2.1

Minimum

14 

67 

29

2.7

50 

56 

81 

50 

240 

4.5 

2.1 

1.9 

8.6

1.9

Aug.

2.3 

2.1 

1.9 

1.9 

1.9

2.7 

3.6 

3.3 

3.0 

3.3

3.9 

4.2 

3.6 

3.9 

3.9

4.5 

4.5 

4.2 

3.6 

5.1

5.9 

4.8 

5.1 

12 

24

19 

14 

15 

18 

17 

15

Mean

33.2 

79.8 

.52.3

159

58-2 

69.5 

146 

279 

482 

37.6 

4.39 

7.01 

134

115

Sept.

15 

14 

15 

20 

18

14 

14 

13 

10 

8.6

11 

8.6 

10 

10 

9.5

10 

11 

29 

220 

425

420 

376 

363 

350 

309

265 

230 

214 

237 

372

Run-off in 

acre-feet

2,040 

4,750 

3,210

115,100

3,580 

4,000 

8,980 

16,610 

29,630 

2,240 

270 

431 

7,980

83,720

*Winter discharge measurement made on this day.

a No gage-height record) discharge computed on basis of weather records and record-" for San Juan 

River at Fagosa Springs, Colo.

Mote.- Stage-discharge relation affected by Ice Dec. 20 to Feb. 3, Fab. 6, 9, 10, 13.

9-232 February 1936

TOUTED STATES DEPAP-TtEHT OF THE INTERIOR 

3eolo& al Surrey
SAN JUAN RIVER BASIN 175

Animas River at Howardsville, Colo.

Location.- Water-stage recorder, lat. 37°50', long. 107°36', in sec. 12, T. 41 tl., R. 7 

W., 0.4 mile southwest of HowardsvLlle and half a mile downstream from Cunningham 

Creek. Datum of gage is 9,616.98 feet above mean sea level (general adjustment of 

1912).

Drainage area.- 55.9 square miles'.

Records available.- May 1936 to September 1940.

Extremes.- Maximum discharge during year, 800 second-feet Nay 31 (gage height, 3.10 

feet); minimum daily, 12 second-feet Jan. 16.

1936-40: Maximum discharge, 1,700 second-feet June 21, 1938 (gage height, 4.50 

feet), from rating curve extended above 800 second-feet; minimum not determined, 

occurred during period of no record.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records excellent except those for periods of ice effect, which are fair. No 

diversions above station.

Rating table, water year 1939-40, except periods of ice effect (gage height, in feet, 

and discharge, in second-feet)

0.6

.7

1.3

1.5

1.6

64

94

112

158

185

2.2 

2.6 

2.8

300

500

620

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6

7 

8 

9 

10

11 

12 

13

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

40 

38 

36 

35 

32

31 

29 

32 

32 

28

28 

28 

28 

27 

27

26 

26 

25 

25 

24

24 

24 

23 

23 

24

24 

22 

21 

21 

22 

22

IOT.

22 

22 

22 

22 

22

22 

22 

22 

22 

21

20 

20 

21 

20 

20

20 

20 

20 

20 

20

20 

19 

19 

19 

19

19 

19 

19 

19 

18

Dec.

18 

18 

18 

18 

18

18

17 

17 

16 

17

16

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

bl5

b!4 

b!4 

b!5 

b!5 

b!5 

15

Jan.

16 

16 

16 

16 

16

16 

b!5 

b!4 

b!5 

b!6

b!6 

16 

b!5 

b!4 

b!3

b!2 

b!4 

b!5 

b!4 

b!5

16 

*b20 

b!7 

b!6 

15

15 

15 

b!4 

15 

15 

15

Feb.

15 

15 

14 

15 

15

15 

15 

15 

15 

15

14 

15 

15 

15

14

14 

14 

15 

15 

15

14 

14 

14 

14 

13

14 

14 

13 

14

Month

Oot 

Hov 

Dec

C

Jan 

Peb 

Mar 

Apr

Jim 

Jul

£*Sep

W

alendar year

ater year 1939-4 0......................

Mar.

14 

14 

14 

13 

14

14 

14 

14 

14 

14

14 

14 

13 

14 

14

14 

14 

14 

14 

14

14 

15 

16 

17 

20

20 

20 

20 

20 

20 

20

Apr.

20 

20 

19 

19 

19

20 

20 

20 

20 

20

20 

20 

24 

28 

32

31 

29 

37 

57 

94

132 

148 

174 

185 

174

172 

169 

132 

108 

98

Seoondfoot-days

847 

610 

502

-

473 

419 

480 

2,061 

11,268 

8,888 

1,848 

942 

1,501

29 , 839

May

88 

99 

144 

202 

232

248 

292 

320 

430 

495

524 

548 

500 

495 

506

475 

400 

280 

228 

224

202 

192 

260 

360 

425

440 

485 

506 

518 

572 

578

Mnjpwiyfl

40 

22 

18

-

20 

15 

20 

185 

578 

584 

114 

40 

94

584

June

584 

548 

475 

440 

405

355 

350 

340 

292 

276

305 

350 

380 

395 

350

310 

310 

276 

25£ 

228

22C 

21C 

199 ise

16S

155 

13£ 

13? 

12f 

13f

July

114 

105 

98 

91 

84

78 

75 

70 

65 

62

59 

56 

57 

57 

53

56 

57 

54 

49 

48

46 

46 

45 

43 

41

42 

40 

42 

40 

39 

36

Minimum

21 

18 

14

-

12 

13 

13 

19 

88 

125 

36 

24 

26

12

Aug.

36 

35 

33 

32 

31

31 

32 

29 

28 

27

26 

26 

24 

24 

25

25 

24 

24 

26 

29

28 

29 

32 

36 

40

40 

38 

36

32 

31

Mean

27.3 

20.3 

16.2

-

15.3 

14.4 

15.5 

68.7 

363 

296 

59.6 

30.4 

50.0

81.5

Sept.

29 

29 

30 

29 

28

29 

29 

28 

27 

26

26 

27 

28

27 

27

26 

32 

75 

89 

81

81 

88 

83 

78 

74

71 

65 

67 

78 

94

Run-off in 

acre-feet

1,680 

1,210 

996

-

938 

831 

952 

4,090 

22,350 

17,630 

3,670 

1,870 

2,980

59,200

*18inter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

9-232 February 1936

UHITKD STATES DERSTMEHT OP THE INTERIOR 

Qeolot. .al Surrey
176 SAN JUAN RIVER BASIN

Anlmas River at Durango, Colo.

Location.- Water-stage recorder, lat. 37°17', long. 107°52', In sec. 20, T. 3f N., R. 9 

W., 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 (general adjustment of 1989).

Drainage area.- 698 square miles.

Records available.- June 1895 to December 1905, January 1910 to December 1914, October 

1933 to September 1940 in reports of Geological Survey. June 1895 to December 1905, 

Decenber 1910 to September 1940 in reports of State engineer.

Average discharge.- 39 years (1895-1900, 1901-5, 1910-40), 900 second-feet.

Extremes.- Maximum discharge during year, 3,170 second-feet Way 15 (gage height, 4.43 

feet); minimum daily, 188 second-feet Dec. 87.

1895-1900, 1901-5, 1909-40: Maximum discharge, 25,000 second-feet Oct. 5, 1911 

(gage height, 13.6 feet), from rating curve extended above 7,000 second-feet; minimum 

daily, 50 second-feet Dec. 88, 1917.

Remarks.- Records excellent except those for period of no gage-height record, which are 

 good. Diversions above station for irrigation. Natural regulation by many lakes and 

artificial regulation for power.

Discharge, In second-feet, water year October 1939 to September 1940

 *y

i

2

3

4

S

6

7

8

9

10

11

12

18

14

IS

16

17

18

19

20

81

22

23

24

25

26

27

28

29

SO

31

Oct.

364

346

328

319

307

294

282

286

303

290

278

270

266

258

250

250

239

235

231

223

220

208

198

198

208

246

250

239

231

220

220

MOT.

231

231

231

227

227

227

223

227

231

239

223

223

223

227

220

212

208

208

201

198

205

205

198

201

205

208

208

205

201

198

-

Dec.

194

190

194

194

187

187

187

187

183

183

183

183

183

169

169

169

176

173

169

156

156

153

163

153

160

143

122

125

134

166

194

Jan.

194

169

176

176

176

166

140

160

169

176

163

163

163

128

134

140

153

156

146

140

153

160

150

169

163

160

160

156

150

150

156

Feb.

160

166

163

166

153

146

166

163

150

150

156

163

143

153

166

146

143

146

150

166

160

145

160

160

165

165

170

170

170

_

-

Month

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

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

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

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

Water year 1939-4 0. .....................

Mar.

170

175

180

180

180

ISO

190

187

194

194

190

183

180

183

187

187

194

201

208

223

239

262

298

341

393

437

427

398

355

332

337

Apr.

350

360

332

319

319

332

332

341

355

360

360

360

407

521

656

644

543

510

613

896

1,270

1,270

1,420

1,380

1,260

1,150

1,270

1,020

853

750

-

Seoondfoot-days

8,057

6,471

5,285

201,380

4,915

4,580

7,585

20,553

60,218

34,193

10,496

6,758

12,721

181,832

May

676

721

941

1,430

1,830

1,660

2,030

1,900

2,130

2,460

2,630

2,770

2,650

2,790

2,850

2,600

2,540

2,070

1,630

1,480

1,340

1,250

1,280

1,650

1,940

1,970

2,120

2,310

2,140

2,150

2,280

^flTMnnirn

364

239

194

2,460

194

170

437

1,420

2,850

2,390

588

355

1,130

2,850

June

2,390

2,320

2,090

1,7SO

1,640

1,440

1,360

1,300

1,200

1,060

1,060

1,100

1,170

1,250

1,260

1,080

1,040

1,020

923

896

823

823

779

757

708

650

594

560

526

594

-

July

588

521

482

452

427

412

398

373

350

328

315

298

298

328

307

294

303

364

341

298

303

278

282

274

266

258

266

278

294

266

254

mnlimini

198

198

122

122

128

143

170

319

676

526

254

150

187

122

Av<t.

239

£

£

£

J27

220

208

194

198

£

£

£

!12

05

01

190

190

]

]

1

76

69

66

156

160

]

]

]

L60

50

53

180

194

1

£

£

94

>16

!42

298

350

!

j

Z

i

555

528

S03

374

250

Mean

260

21f

170

ssr

15f

158

245

685

1,943

1,140

33f

21f

42<

49V

Sept.

246

227

227

250

242

227

220

205

194

201

194

190

194

198

194

187

194

412

1,130

941

764

808

793

682

594

549

526

499

588

845

-

Run-off in 

acre-feet

15,980

12,840

10,480

399,500

9,750

9,080

15,040

40,770

119,400

67,820

20,820

13,400

25,230

360,600

__________________________________ ________ ________ ________ _______1________ 

Note.- Ho gage-height record Feb. 22 to Mar. 5; discharge computed on baaia of recorded range of 

stage and weather recorda.

February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolog: J. Surrey
SAN JUAN RIVER BASIN 177

Anlmas River near Cedar Hill, N: Hex.

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.

Records available.- November 1933 to September 1940.

Extremes.- Maximum discharge during year, 4,020 second-feet May 15 (gage height, 5.81 

feet); minimum dally, 125 second-feet Aug. 19.

1933-40: Maximum discharge, 9,540 second-feet June 16, 1935; maximum gage height, 

7.63 feet June 30, 1938; minimum dally, 90 second-feet (estlmatec1 ) Jan. 21, 1935. 

Greatest flood known occurred Oct. 5 or 6, 1911 (discharge not determined).

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

which are poor. Diversions above station for Irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

6

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

SI

Oct.

397

374

354

334

334

323

309

320

334

330

316

306

302

292

284

278

270

267

264

264

261

242

233

233

242

326

323

281

270

260

264

HOT.

274

274

278

274

267

284

2S1

270

281

296

267

267

267

264

264

254

246

24S

242

236

239

245

239

236

239

239

239

236

233

224

Dec.

215

209

206

209

212

212

212

215

212

212

209

206

206

194

194

191

200

194

188

blBO

1)176

1)180

1)196

1)196

1)190

1)170

b!70

a!60

a!60

a!76

a210

Jan.

a240

a280

a290

a280

a260

a260

a240

a220

a240

a240

1)265

1)280

1)266

1)220

blBO

blBO

blBO

b200

b200

b!86

b!86

b!90

b!66

b!76

b200

b210

b210

b210

b216

b210

b200

Feb.

b210

b260

218

216

200

191

206

209

b200

b200

197

203

b!90

b200

197

191

173

188

179

176

176

179

218

230

216

274

306

312

326

-

Month

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

Calendar year 1939 ......................

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

 V............. ..........................

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

Water year 1939-4

Mar.

309

274

281

284

274

281

2S4

284

323

323

284

264

242

242

236

267

264

274

267

270

284

316

366

430

482

662

674

660

466

436

426

Apr.

455

487

460

430

420

440

440

436

460

466

465

470

614

638

790

836

73S

659

752

1,050

1,490

1,640

1,800

1,840

1,660

1,440

1,660

1,310

1,060

929

-

Seoondfoot-days

9,167

7,701

6,066

229,611

6,876

6,239

10,406

26,082

66,440

36,981

11,687

7,909

14.912

210,466

May

806

790

946

1,460

2,010

1,800

2,170

2,060

2,220

2,760

2,960

3,060

2,960

3,160

3,480

3,060

2,960

2,380

1,820

1,660

1,460

1,430

1,440

1,780

2,060

2,060

2,270

2,670

2,260

2,250

2,480

Maximum

397

295

215

2,760

290

326

674

1,840

3,480

2,660

673

622

1,260

3,480

June

2,660

2,570

2,200

1,810

1,680

1,490

1,400

1,330

1,260

1,160

1,160

1,200

1,280

1,370

1,340

1,160

1,100

1,100

1,030

1,010

964

921

913

860

805

730

680

612

600

626

-

July

673

606

644

604

487

460

446

410

3S4

346

330

326

323

364

360

330

566

392

388

326

302

302

302

302

274

267

274

284

298

S81

267

Minimun

233

£24

160

150

166

173

?36

420

V90

COO

F67

126

188

326

Aug.

261

242

236

224

212

260

306

212

206

209

212

194

186

176

170

160

158

140

126

346

264

239

233

622

409

388

388

366

326

292

270

Mean

296

267

196

629

222

216

336

869

2,143

1 233

37V

265

497

676

Sept.

260

24S

233

257

267

261

239

224

212

221

209

206

212

216

203

188

209

a376

1,260

1,230

921

913

996

873

762

680

662

612

694

1,110

-

Run-off in 

acre-feet

18,180

16,270

12,010

466,600

13,640

12,370

20,640

61,730

131,800

73,360

23,180

16,690

29,680

417,400

Peat discharge.- May 15 (10 to 11 a.m.) 4,020 sec.-ft.; July 17 (6 p.m.) 3,480 sec.-ft.; Aug. 20 

(3 p.m.) 2,760 sec.-ft.; Aug. 24 (2 p.m.) 1,620 sec.-ft.; Aug. 24 (4 p.m.) 1,890 sec.-ft.

a No gage-height record; discharge computed on basis of weather records and records for San Juan 

River at Pagosa Springs, Colo., Los Finos River at Ignacio, Colo., and Anlmaa River at Parmlngton, 

N. Hex.

b Stage-discharge relation affected by ice.
178 SAM JUAN RIVER BASIN

Animas River at Farmington, N. Mex.

Location.- Water-stage recorder, lat. 36°43'20", lone. 108°12'00", in SEs sec. 16, T. 29 

 N., R. 13 W., 25 feet downstream from bridge on State Highway 17, half a mile southeast of Farmington,and 1.1 miles upstream from mouth.

Drainage area.- 1,360 square miles.

Records available.- June 1904 to October 1905 (published as Animas River near Famir.gton), 

September 1912 to December 1914 and October 1930 to September 1940 in reports of Geological Survey. June 1904 to October 1905 (published as Ani-uas River near Farmington), 

September 1912 to December 1931 in reports of State engineer.

Extremes.- Maximum discharge during year, 3,740 second-feet Hay 15 (gage height, 4.94

feet), from rating curve extended above 3,500 second-feft by logarithmic plotting; minimum daily, 8.5 second-feet Aug. 18.

1930-40: Maximum discharge, 9,350 second-feet June 16, 1935, from rating curve extended above 6,400 second-feet by logarithmic plotting; maximum gage height, 7.25 

feet June 30, 1938, site and datum then in use; minimum daily discharge, that of Aug. 

18, 1940.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

Remarks.- Records good except those for periods of no gage-height record, which are 

fair. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

"**7

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

51

Oct.

386 

363 

328 

316 

320

303 

287 

291 

291 

276

246 

227 

220 

213 

196

182 

238 

280 

a280 

a275

a275 

276 

253 

257 

272

324 

303 

284 

264 

249 

238

Nov.

£46 

246 

238 

238 

242

249 

253 

253 

272 

287

299 

276 

268 

268 

264

264 

249 

249 

249 

238

224 

231 

234 

224 

220

224 

227 

227 

231 

231

Dec.

231 

220 

220 

220 

220

216 

216 

220 

227 

227

227 

224 

220 

220 

206

213 

213 

224 

224 

213

202 

210 

224 

231 

227

a210 

a!90 

al80 

al80 

a200 

a240

Jan.

a280 

324 

316 

316 

291

295 

268 

242 

368 

272

291 

324 

303 

253 

196

196 

210 

227 

227 

213

216 

220 

192 

196 

231

224 

234 

231 

242 

231 

224

Feb.

249 

316 

307 

287 

272

242 

238 

246

238 

224

227 

242 

220 

246 

242

246 

238 

220 

a220 

a220

220 

231 

242 

249 

246

253 

320 

311 

316

Month

Oot 

Ho?

Deo

C

Jan 

Peb 

Mar

Apr

Jut 

Jul 

Aug 

Sep

H

 lendar year 193 

uapy .

9. ................

 tor year 1939-40. .....................

Mar.

332 

299 

307 

299 

299

291 

284 

287 

299 

324

307 

291 

268 

260 

257

264 

276 

287 

295 

291

296 

320 

350 

386 

435

517 

556 

544 

484 

410 

395

Apr.

390 

425 

435 

410 

381

381 

376 

368 

354 

332

350 

354 

354 

400 

592

759 

703 

550 

512 

696

1,110 

1,400 

1,400 

1,540 

1,400

1,240 

1,220 

1,250 

954 

794

Seoondfoot-days

8,513 

7,421 

6,695

197,288

7,853 

7,328 

10,509 

21,430 

61,767 

29,512 

4,477 

3,673.6 

11,677

180,745.5

May

649 

522 

568 

978 

1,660

1,790 

1,860 

2,080 

2,000 

2,390

2,730 

2,820 

2,910 

2,910 

3,180

3,090 

2,910 

2,560 

2,080 

1,600

1,430 

1,360 

1,320 

1,480 

1,860

2,000 

2,160 

2,310 

2,160 

2,160 

2,230

Maximum

386 

299 

240

2,570

368 

320 

556 

1,540 

3,180 

2,310 

456 

568 

1,270

3,180

June

2,310 

2,310 

2,160 

1,790 

1,540

1,360 

1,190 

1,100 

1,050 

922

845 

860 

898 

994

1,040

1,020 

845 

830 

766 

689

682 

604 

636 

562 

639

478 

420 

363 

328 

381

July

456 

420 

337 

295 

276

246 

224 

213

179 

119

77 

53 

34 

28 

32

37 

32 

299 

216 

157

101 

81 

66 

58 

56

45 

51 

73 

75 

75 

66

Minimum

182 

220 

180

17

192 

220 

257 

332 

522 

328 

28 

8.5 

44

8.6

Aug.

49 

34

re

*T4

ro

ri ir4 ei

45 

£5

£4 

£5 

18 

15 

18

10 

10 

8.5 

30 

SB

281 

114 

89 

133 

558

390 

350 

316 

280 

24? 

199

Mean

276 

247 

216

541

253 

253 

339

714 

1,992 

984 

144 

118 

386

494

Sept.

163 

148 

119 

101 

106

89 

75 

62 

60 

47

44 

45 

45 

53 

54

54 

58 

182 

696 

1,270

1,020 

860 

1,030 

914 

738

630 

568 

706 

630 

1,010

Run-off in 

acre-feet

16,890 

14,720 

13,280

391,400

15,580 

14,530 

20,840 

42,510 

122,500 

68,540 

8,880 

7,290 

22,960

368,500

a No gage-height record; discharge computed on basis of weather records and records fir Animas 

River near Cedar Hill and Los Pinos River at Ignacio, Colo.

T(j February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolofe al Survey
SAN JUAII RIVER BASIN 

Mineral Creek near Silverton, Colo.

179

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.

Drainage area.- 43.9 square miles.

Records available.- May 1936 to September 1940.

Extremes.- Maximum discharge during year, 660 second-feet May 31 (gage height, 3.23 feet); 

minimum daily, 9.2 second-feet Jan. 13.

1936-40: Maximum discharge, 1,700 second-feet June 29, 1938 (gage height, 4.69 

feet), from rating curve extended above 500 second-feet; minimum occurred during period 

of no record.

Greatest flood known occurred Oct. 5, 1911 (discharge not determined).

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

which are fair. No diversions above station.

Discharge, In second-feet, water year October 1939 to Septemt«r 1940

Day

1 

3 

Z

4 

5

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

30

81 

28 

83 

84 

85

36 

87 

88 

89 

30 

31

Oct.

51 

47 

44 

42 

39

38 

37 

39 

37 

32

34 

32 

31 

31

30

29 

28 

27 

27 

26

25 

25 

25 

25 

26

26 

22 

21 

23 

24 

25

HOT.

26 

25 

25 

24 

23

24 

21 

21 

21 

19

20 

21 

21 

18 

18

18 

17 

16 

15 

17

17

16 

16 

17 

17

18 

17 

17 

16 

15

Dec.

15 

15 

14 

16 

16

15 

16 

15 

16 

16

16 

14 

13 

13 

13

14 

14 

14 

11 

12

12 

12 

12 

13 

14

13 

14 

14 

14 

14 

14

Jan.

14 

14 

14 

14 

14

14 

13 

14 

14 

14

14 

14 

9.2 

blO 

bll

b!4 

bis 

b!7 

b!6 

b!7

b!6 

*b!6 

b!5 

b!6 

15

14 

14 

14 

14 

15 

15

Feb.

16 

16 

15 

15 

15

14 

14 

13 

13 

14

15 

14 

13 

15 

16

16 

15 

14 

16 

14

14 

16 

14 

14 

14

12 

14 

14 

14

Month

Oct 

Hov 

Dec

C

Jan 

Fet> 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

n

uary

ater year 1939-4

Mar.

14 

14 

14 

14 

12

14 

12 

13 

14 

14

13 

12 

12 

12 

13

13 

14 

14 

14 

16

18 

21 

26 

31 

38

39 

35 

30 

27 

27 

29

Apr.

27 

25 

22 

20 

22

21 

23 

23 

23 

21

19 

21 

31 

48 

55

42 

37 

42 

74 

124

150 

171 

187 

168 

136

136 

127 

93 

72 

61

Seoondfcot-days

968 

576 

434

-

443.2 

419 

589 

2,021 

8,906 

7,416 

2,072 

1,062 

2,255

27,161.2

Hay

63 

83 

130 

195 

211

223 

251 

264 

320 

390

395 

410 

400 

400 

415

385 

335 

247 

211 

207

183 

171 

215 

264 

278

300 

360 

365 

370 

405 

460

MqyJTTPlTl

51 

26 

16

-

18 

16 

39 

187 

460 

500 

118 

56 

191

500

June

500 

450 

380 

350 

320

291 

268 

251 

231 

227

251 

273 

300 

325 

278

243 

251 

239 

223 

211

203

191 

179 

171 

157

139 

130 

124 

121 

139

July

118 

106 

101 

93 

86

81 

76 

72 

68 

63

59 

58 

63 

59 

56

59 

68 

68 

56 

56

55 

56 

56 

56 

58

58 

53 

61 

55 

51 

47

lltn^nmm

21 

15 

11

-

9.2 

12 

12 

19 

63 

121 

47 

26 

26

9.2

Aug.

42 

41 

38 

35 

34

35 

34 

31 

30 

29

28 

27 

37 

26 

26

27 

26 

26 

27 

30

28 

29 

32 

45 

55

56 

50 

44 

38 

34 

32

Mean

31.2 

19.2 

14.0

-

14.3 

14.4 

19.0 

67.4 

287 

247 

66.8 

34.3 

75.2

74.2

Sept.

31 

34 

35 

32 

31

31 

30 

29 

28 

2fc

26 

28 

28 

27

LI

37 

17P 

191 

157

139 

161 

136 

112 

99

93 

83 

93 

146 

161

Run-off in 

acre-feet

1,920 

1,140 

861

-

879 

831 

1,170 

4,010 

17 , 660 

14,710 

4,110 

2,110 

4,470

53,870

 Winter discharge measurement made on this day: 

b Stage-discharge relation affected by Ice. 

Sote.- No gage-height record Jan. 29 to Feb. 

durlng~part of period.

17; stage-discharge relation probably affected by Ice

9-2S8 February 1936

UNITED STATES DEPAPi-MENT OP THE INTERIOR 

Geolog al Surrey
180 SAN JUAN RIVER BASIN 

Cascade Creek near Tacoma, Colo.

Location.- Staff gage, lat. 37°40', long. 107°49', in sec. 11, T. 39 N., R. 9 W., at crossing of U. S. Highway 550, 10 miles north of Tacoma.

Drainage area.- 26.8 square miles.

Records available.- October 1934 to September 1940 in reports of Geological Survey. Octo-

 ber 1926 to September 1940 in reports of State engineer. January 1915 to September B26 

in files of office of State engineer.

Average discharge.- 26 years, 51.1 second-feet.

Remarks.- Complete records furnished by Western Colorado Power Co. No diversions above

 station. Flow in flume is combined with flow over diversion dam to get total flow in 

creek. Staff gage read twice daily.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

f.

3

4

S

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

21

W

23

24

25

26

27

28

29

90

SI

Oct.

34

32

32

27

24

22

20

20

18

20

18

18

18

17

17

16

16

14

14

14

13

13

12

12

12

10

10

10

10

10

10

HOT.

10

12

12

12

12

12

12

12

10

10

10

12

10

12

12

9.3

9.3

9.3

9.3

8*2

8.2

8.2

8.2

8.2

8.2

7.1

7.1

7.1

7.1

7.1

-

Dec.

7.1

6.1

6.1

6.1

6.1

6.1

6.1

6.1

6.1

6.1

6.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

4.2

4.2

3.3

3.3

3.3

3.3

3.3

3.3

Jan.

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

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

3.3

Feb.

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

3.3

3.3

3.3

3.3

2.5

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

_

-

Month

March. .".,...., ., .

Hay.......................................

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

Water year 1939.4

Mar.

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

4.2

4.2

4.2

6.1

7.1

8.2

10

12

17

24

24

23

17

17

14

12

Apr.

12

9,3

8.8

10

10

9.3

9.3

10

10

12

12

17

27

33

36

22

18

24

42

60

75

90

107

90

66

56

53

44

39

31

-

Seoondfoot-days

157.5

14,093.6

2 772

724

1,182

18,542.8

May

28

39

60

103

129

145

141

141

172

193

1S8

207

235

221

226

207

197

164

137

137

103

103

150

1S7

175

187

205

182

182

187

187

MI) if 1 muni

34

12

7.1

223

36

180

235

June

186

182

173

164

154

137

129

112

103

95

95

95

103

107

103

87

76

69

62

60

66

60

53

53

50

44

42

39

31

42

-

July

36

31

31

26

26

26

24

24

22

22

22

22

22

20

18

20

22

22

24

24

22

20

18

18

22

24

22

26

26

22

80

iii«'im\'nn

10

7.1

3.3

3.3

18

11

8.5

AKJ.

18

17

17

14

12

12

15

12

12

12

11

11

11

11

11

11

10

10

11

12

11

11

14

20

31

33

28

22

18

18

15

Mean

17.2

9.73

5.03

38.6

159

23.4

39.4

34.3

Sept.

14

12

15

14

12

12

11

11

11

11

11

11

14

12

18

12

14

120

103

80

60

80

69

60

47

44

42

44

112

112

-

Run-off In 

acre-feet

1,060

579

312

27,960

1,440

2,340

84,860

 >--?58 February, 1936

TOITED STATES DEP'ITMENT OP THE IHTERIOR 

Oeolc cal Survey
SAN JUAN RIVER BASIN 

Llghtner Creek near Durango, Colo.

181

Location.- Water-stage recorder, lat. 37°16', long. 107°53', In sec. 30, T. 35 N., R. 9 W., 

half a mile above mouth and half a mile west of Durango. Prior tc Oct. 1, 1939, waterstage recorder at site 2 miles upstream at different datum.

Drainage area.- 66 square miles.

Records available.- October 1939 to September 1940. October 1933 to September 1939 In reports of Geological Survey, and June 1927 to September 1939 at site 2 miles upstream In 

reports of State engineer.

Average discharge.- 13 years, 19.2 second-feet.

Extremes.- Maximum discharge during year, 322 second-feet Aug. 24 (gege height, 2.92 feet); 

minimum dally, 1 second-foot or less at times during period of Ice effect.

1927-40: Maximum discharge, 1,830 second-feet June 26, 1937 (rage height, 5.00 feet, 

from floodmarks, site and datum then In use), by slope-area method: minimum dally, 1 

second-foot or less at times during periods 1930-31, 1933-35, 193f-40.

Remarks.- Records fair except, those for period of Ice effect, which ere poor. No dlverslons above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

81

22

23

24

25

26

27

28

29

30

31

Dot.

1.7

1.8

2.1

2.2

2.1

2.5

3.3

3.3

3.3

3.3

3.9

3.1

3.3

3.5

3.5

3.7

4,1

4.3

3.9

3.9

4.5

4.5

3.9

3.9

4.8

6.8

5.5

5.2

4.3

4.1

4.1

lor.

4.3

4.3

4.1

3.9

4.3

4.1

3.9

4.1

4.8

3.9

3.5

3.5

a3.5

a3.3

a3.2

a3.0

a3.0

a2.7

a2.5

a2.3

2.3

2 z'.z»5

2.3

2.5

2.4

2.1

2.1

2.2

2.0

-

Dec.

2.0

2.2

2.0

2.0

2.1

2.2

2.2

2.2

2.4

2.2

2.0

2.1

2.2

2.2

2.3

2.2

2.0

1.9

2.0

2.0

2.0

2.2

2.0

1.9

1.8

1.7

1.6

1.5

1.5

1.4

1.4

Jan.

»

(«)

. i.o

Feb.

X

1.5

;

-

-

Month

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

Calendar year 1939......................

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

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

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

Water year 1939-'10......................

liar.

2.0

2.0

2.5

2.5

3.0

3.3

3.3

3.7

6.8

6.2

5.0

4.1

4.5

3.9

4.1

5.8*

6.S

5.S

6.0

6.0

7.4

11

20

24

28

28

35

33

27

23

23

Apr.

23

21

22

24

24

23

21

21

23

28

28

31

38

52

60

46

34

 31

37

51

60

55

50

44

37

33

32

30

35

29

-

Seoondfoot-days

114.4

94.9

61.4

3,265.0

31.0

43.5

346.7

1,043

784

165.4

127 »1 247!?

252.5

3,311.6

May

27

24

31

41

42

34

33

32

28

28

28

29

30

33

30

32

33

31

26

21

IS

19

20

20

18

16

14

12

12

11

11

MqT^tmim

6.8

4.8

2.4

72

_

_

35

60

42

11

9.4

44

168

168

June

11

11

9.8

9.4

10

8.6

7.0

6.5

6.0

5.8

5.2

5.0

4.5

4.5

4.1

4.3

4.5

3.9

3.9

7.0

4.8

3.9

3.5

3.3

3.1

3.3

3.5

3.3

2.5

2.2

-

July

2.2

1.9

1.9

2.3

4.3

a6

a5

5.0

3.5

2.7

2'.95

2.9

2.9

2.7

2.2

2.0

2.2

2.2

2.2

2.3

6.5

5.8

8.2

9.4

9.0

6.8

6.2

4.1

4.5

4.3

Wnirniim

1.7

2.0

1.4

-

_

2.0

21

11

2»2 1)9

1.5

1.5

-

Aug.

4.8

4.8

4.5

4.5

4.5

4.5

4.3

4.8

4.1

12

9.4

7.0

2.7

1.7

1.5

2.4

5.0

4.8

5.0

9.0

14

7.0

26

44

18

10

7.0

7.0

5.0

4.3

4.1

Mean

3.69

3.16

1.98

8.95

1.0

1.5

11.2

34.8

25.3

5.51

4.10

7 99

s!42

9.06

Sept.

3.7

3.7

3.7

3.9

3.3

3.1

3.1

2.7

2.4

2.4

2.7

2.4

2.4

2.7

2.4

2.5

4.5

7.0

3.3

2.5

2.3

2.7

2.7

2.3

2.0

1.7

1.5

3.1

1.8

168

-

Run-off in 

aore-feet

227

188

122

6,480

61

86

688

2,070

1,560

328

252

491

501

6,570

 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. 27 to Mar. 5.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolot .al Surrey
182 SAN JUAIJ RIVER BASIN 

Florida River near Durango, Colo.

Location.- Water-stage recorder, lat. 37°20', long. 107°45', in sec. 4, T. 55 II., R. 8 W., 

just downstream from Red Creek and 10i miles northeast of Durango. Datura oi' gage is 

7,301.88 feet (revised) above mean sea level (general adjustment of 1929).

Drainage area.- 96 square miles.

Records available .- May to July 1899, April 1901 to October 1903, September 1910 to September 1912, and October 1933 to September 1940 in reports of Geological Survew. Hay to 

July 1899, April 1901 to Octoler 1903, September 1910 to September 1924, ard April 1927 

to September 1940 in reports of State engineer. Station has been located at several 

different sites in the vicinity; all records equivalent.

Average discharge.- 22 years (1910-12, 1917-24, 1927-40), 122 second-feet.

Extremes.- Maximum discharge during year, 565 second-feet May 14 (gage height, 2.75 feet); 

minimum daily, 5.0 second-feet Dec. 28, 29, Jan. 7, 8, 19, 20, 25, Feb. 12, 13.

1899, 1901-3, 1910-24, 1927-40: Maximum discharge observed, 4,640 secord-feet June 

28, 1927 (gage height, 4.50 feet, site and datum then in use); minimum daily, 0.4 

second-foot Feb. 15, 1918.

Greatest flood known occurred Oct. 5, 1911 (discnarge not determined).

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 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

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 

37 

36 

34 

31

28 

27 

33 

30

28

30

29 

27 

27 

25

23 

23 

22 

22 

21

20 

19 

18 

19 

21

29 

19 

22 

22 

19 

21

Hov.

22

21

22 

22

22 

21 

22 

23 

20

21

22

18 

18

19 

20 

18 

16 

14

15 

10 

8.4 

6.2 

*11

6.0 

6.0 

6.2 

6.4 

6.5

Dec.

6.5 

6.4 

6.6 

7.3 

7.6

7.6 

7.5 

7.8 

8.0

8.2

9.0 

8.4 

8.0 

8.0 

7.4

8.4 

8.3 

8.2 

8.1 

7.9

7.7 

8.1 

*8.3 

7.0

6.0 

5.8 

5.0 

5.0 

5.2 

5.3

Jan.

5.5 

6.2 

6.4 

6.2 

5.4

5.2 

5.0 

S.O 

7.0 

8.0

8.2 

8.4 

7.5 

5.3

5.1 

5.3 

*5.6 

5.0 

5.0

5.3 

5.2 

5.1 

5.2 

5.0

5.2 

5.6 

5.4 

5.3 

5.5 

5.5

Feb.

5.6 

5.9 

5.8 

5.6 

5.4

5.3 

5.6 

5.5 

5.1 

5.5

5.2 

5.0 

5.0 

5.4 

5.6

*5.6 

5.5 

5.5 

5.5 

5.5

5.7 

5.7 

5.9 

6.0 

6.1

6.3 

6.5 

6.8 

6.9

Month

Oot 

Hov 

Dec

0

Jan 

Pet 

Mar 

Apr 

May

Jun

Jul 

Aug 

Sep

«

alendar year 193

ater year 1939-

Mar.

7.0 

6.8 

6.6 

6.6 

6.6

6.4 

6.2 

6.3 

7.2 

8.0

7.7 

6.3

6.2 

7.0 

9.0

10 

13 

16 

19 

21

25 

29 

38 

43 

49

54 

58 

a55 

a52 

a50 

a50

Apr.

a50 

a50 

a47 

a45 

a45

a46 

47 

45

52 

52

49 

52 

64 

82 

98

94 

81 

73 

88 

130

158 

174 

205 

186 

161

149 

161 

135 

113 

102

Seoondfoot-days

802 

483.7

228.5

20,920.1

1-

1 

6

2, a

8,7 

2,5 

9J 

5 

2,0

8.8 

55.0 

35.9 

54

38 

,0 

39.8 

36.2

20,113.9

Hay

94 

110 

176 

282 

143

307 

359 

343 

374 

398

410 

414 

351 

418 

414

366 

347 

282 

232 

214

186 

17P 

194 

244 

269

279 

282 

256 

229 

220 

220

MftxInTvn

40

23 

9.9

426

8.4 

6.9 

58 

205 

418 

208 

53 

39 

214

418

June

208 

194 

171 

154 

133

119 

106 

100

92 

81

81 

79 

73 

68 

70

66 

59 

56 

53

46 

48 

75 

56 

51

47 

43 

41 

38 

51

July

53 

45 

40 

36 

35

35 

33

28 

25 

21

19 

18 

18 

16 

16

18 

30 

47 

37 

31

27 

30 

36 

32 

29

27 

27 

29 

29 

28 

25

Minimum

18 

6.0 

5.0

3.9

5.0 

5.0 

6.2 

45 

94 

38 

16 

7.5 

8.8

5.0

jug.

18 

16 

14 

11 

9.7

11 

15 

15 

11 

9.2

7.9 

7.9 

7.5 

9.2 

9.2

9.2 

9.7 

8.4 

7.9 

11

11 

19 

21 

29 

35

39 

35 

31 

27 

23 

22

Mean

25. e

16.1 

7.?7

57.3

5.77 

5.69 

22.1 

94.5 

284 

83.6 

29. T 

16.4 

66.9

55.0

Sept.

21 

18 

20 

21 

19

16 

15 

12 

11 

8.8

9.2 

11 

13 

12 

10

9.2 

10 

79 

214 

168

137 

192 

156 

124 

102

84 

77 

86 

154 

197

Run-off In 

acre-feet

1,590 

959 

453

41,490

355 

327 

1,360 

5,620 

17,440 

4,970 

1,820 

1,010 

3,980

39,880

Winter discharge measurement made on this day

a No gage-height record; discharge computed on basis of 

Note.- Stage-discharge relation affected by ice Nov. 17 t

of records for Animaa River at Durango.

»-232 February 1936

UNITED STATES DEPA DTMENT OP THE INTERIOR 

Oeolot ;al Survey
SAN JUAN RIVER BASIN 

La Plata River at Hesperus, Colo.

183

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 8,107.75 feet above mean sea 

level (datum of Bureau of Reclamation).

Drainage area.- 37 square miles.

Records available.- June to August 1904, April to August 1906, August to December 1910, and 

October 1933 to September 1940 In reports of Geological Survey. June to August 1904, 

April to August 1906, August to December 1910, and May 1917 to September 1940 In reports 

of State engineer.

Average discharge.- 23 years (1917-40), 46.5 second-feet.

Extremes.- Maximum discharge during year, 250 second-feet Hay 15 (gage height, 1.80 feet); 

minimum daily, 3.6 second-feet Dec. 16-30, but may have been less during period of Ice 

effect.

1904, 1906, 1910, 1917-40: Maximum discharge, 1,460 second-feet June 28, 1937 (gage 

height, 4.60 feet, datum then In use); no flow Apr. 4, 1906.

Greatest flood known occurred Oct. 5, 1911 (discharge not detemined).

Remarks.- Records good except those for period of ice effect, which are fair, 

slon above station for Irrigation.

One diverDischarge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

81 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.1 

9.1 

9.1 

9.1

7.9

7.3 

7.0 

7.6 

6.7 

6.7

5.9 

5.6 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.6 

6.2

6.2 

6.2 

5.9 

5.6 

5.9

B.B 

7.0 

6.4 

6.2 

5.9 

5.9

Hov.

5.6 

5.6 

5.4 

5.4 

5.4

5.4 

5.4 

5.6 

6.2 

6.4

6.4 

6.2 

6.2 

6.2 

6.2

5.9 

5.9 

5.6 

5.4 

5.4

5.1 

5.1 

5.1 

5.1 

5.4

5.4 

5.4 

5.4 

5.4 

5.4

Dec.

5.1 

5.1 

5.1 

5.1 

5.1

5.1 

4.5 

4.5 

4.5 

4.5

4.5 

4.3 

4.3 

4.3 

4.3

3.6 

3.6 

3.6

3.6 

3.6

3.7 

3.7 

3.7 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

3.8 

3.8

Jan.

{*)

 4.3 

(*)

Feb.

(*)

 4.8 

(*)

Month

Oot 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

H

alendar year 193 9. .....................

il................ .....................

ater year 193 g_/

Mar.

4.8 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.3 

5.3 

*5.3 

5.3 

5.3

5.6 

5.8 

6.0 

6.2 

6.6

7.3 

8.2 

8.5 

9.7 

14

39 

41 

37 

36 

36 

35

Apr.

36 

34 

32 

30 

30

30 

36 

39 

42 

44

44 

60 

68 

103 

122

90 

68 

68 

107 

167

164 

150 

137 

103 

84

84 

S6 

71 

60 

52

Secondfoot -days

205.3 

168.6 

129.8

8,307.9

133.3 

139.2 

378.2 

2,241 

3,856 

1,459 

424.0 

257.4 

583.3

9,975.1

May

50 

62 

88 

132 

152

142 

161 

150 

150 

161

147 

139 

145 

170 

196

189 

177 

152 

118 

100

74 

79 

82 

91 

84

94 

111 

106 

114 

116 

124

Mayiimim

9.1 

6.4 

5.1

174

41 

167 

1£6 

114 

24 

12 

52

196

June

114 

106 

104 

109 

99

92 

82 

67 

31 

24

27 

29 

27 

28 

24

20 

21 

21 

33 

45

42 

44 

42 

40 

36

34 

32 

30

28 

28

July

20 

24 

23 

22 

21

22

18 

16 

14 

14

14 

12 

12 

12 

11

12 

11 

11 

11 

9.2

8 B 

8 8 

8 8 

9 7 

9 7

11 

11 

12 

12 

12 

11

MJTl^TlnTOI

5.4 

5.1 

3.6

1.0

4.8 

30 

50 

20 

B.B 

4.7 

4.4

-

Aug.

12 

12 

11 

10 

9.7

10 

10 

8.4 

7.0 

7.0

5.3 

4.7 

4.7 

7.0 

6.6

6.0 

6.0 

6.0 

5.3 

6.0

7.5 

7.9 

6.0 

8.8 

8.4

7.9 

9.2 

11 

12 

12 

12

Mean

6.62

5.62 

4.19

22.8

4.3 

4.8 

12.2 

74.7 

124 

48.6 

13.7 

8.30 

19.4

27.3

Sept.

14 

14 

14 

14 

13

12 

11 

11 

11 

11

10 

9.7 

7.9 

6.0 

4.7

4.4 

5.6 

19 

45 

36

30 

28 

29 

30 

27

26 

25 

28 

35 

52

Rim-off in 

aore-feet

407 

334

257

16,470

264 

276 

750 

4,440 

7,650 

2,890 

841 

511 

1,160

19,780

Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by ice Dec. 19 to Mar. 20.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

OeolOfc al Surrey
184 SAN JUAN RIVER BASIN 

La Plata River at Colorado-New Mexico State line

Location.- Water-stage recorder, 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. 

Hex. Datum of gage is 5,975.15 feet above mean sea level (general adjust-nent of 1929).

Drainage area.- 331 square miles.

Records available.- October 1933 to September 1940 in reports of Geological Survey. February 1920 to September 1940 in reports of State engineer of Colorado.

Average discharge.- 20 years, 34.8 seconoi-feet.

Extremes.- Maximum discharge during year, 1,460 second-feet Aug. 24 (gage height, 5.83 

feet); no flow Oct. 14, 20-25, 28-31, Nov. 5, 7, 8, 11-16, May 21, 23-29, June 10-19, 

July 2-12, Aug. 5, Sept. 6-10, 13-15.

1920-40: Maximum discharge, 4,750 second-feet Aug. 24, 1927 (gage height, 11.36 

feet); no flow at times in 1922, 1924, 1928, 1930, 1933-40.

Remarks.- Records good except those for period of ice effect, which are fair. Diversions 

above station for irrigation.

Diecharge, in second-feet, water year October 1939 to September 1940

Day

1

e

3

4 

5

6 

7 

8 

9

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1.1 .1 .1

.2

.5 

.2 

.7 

.7 

.1

.1 

.2 

.1 

0 

.1

.6 

.1 

.1 

.1 

0

0 

0 

0 

0 

0

.7 

.2 

0 

0 

0 

0

Hov.

0.1 

.2 

.5 

.2 

0

.1 

0 

0

1.8 

1.0

0 

0 

0 

0 

0

0 

.2 

1.3 

2.2 

1.7

1.8 

1.2 

2.3 

2.5 

1.4

2.0 

1.7 

1.7 

2.2 

3.4

Dec.

5. a

4.8 

3.4 

3.4 

3.6

3.6 

3.4 

3.4 

2.6 

3.2

4.2 

3.6 

2.6 

3.4 

3.2

4.4

5.C

s;s

5.2 

4.6

4.2 

4.6 

5.0 

5.0 

6.8

4.4 

6.3 

6.1 

5.8 

5.5 

8.0

Jan.

6.1 

»6.1 

7.0 

4.6 

7.6

6.5 

5.3

10 

11 

11

10 

12 

11 

6.0

5.0

»3.4 

4.0 

5.0 

7.0 

9.2

10 

7.2 

9.2 

11 

10

10 

9.5 

8.4 

10 

9.6 

10

Feb.

12 

20 

12 

12 

10

7.8 

11 

9.8 

7.8 

6.1

6.3 

8.2 

5.0 

7.4 

7.8

5.9 

5.0 

4.8 

5.5 

5.2

5.7 

8.2 

12 

16 

13

27 

SO 

20 

21

Month

Oct 

No? 

Dec

C

Jan

Peb 

Mar 

Apr

Jm 

Jul £" 

Sep

fl

nary

ater year 1939-4 0. .......... ,.

liar.

21 

20 

16 

16 

14

14 

14 

14 

16 

15

14 

12 

12 

11 

12

12 

14 

15 

16 

19

21 

21 

18 

18 

18

20 

21 

22 

20 

18 

15

Apr.

15 

19 

16 

16 

17

14 

12 

9.8 

12 

12

14 

19 

30 

55 

61

42 

61 

39 

33 

48

44 

56 

77 

58 

39

32 

48 

46 

32 

22

Seoondfoot-days

5.1 

29.5 

140.0

5,160.0

252.7 

312.5 

509 

998.8 

1,399.4 

859.6 

65.1 

371.4 

186.5

5,129.6

Hay

16 

16 

19 

50 

71

49 

56 

66 

67 

73

66 

74 

77

119 

115

86 

.82 

100 

18 

1.2

0 

1.2 

0 

0 

0

0 

0 

0 

0 

87 

91

Moyfomflm

0.7 

3.4 

8.0

107

12 

27 

22 

77 

119 

98 

14 

186 

61

186

June

85 

83 

73 

98 

90

85 

76 

64 

14 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

1.6

18 

24 

23 

23 

21

18 

17 

16 

16 

14

July

1.2

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.4 

1.8 

3.0

4.2 

1.8 

2.S 

3.S 

4.0

3.6 

4.0 

3.4 

14 

5.9

2.2 

3.4 

1.7 

1.2 

1.2 

1.5

Minimum

0 

0 

2.6

0

3.4 

4.8 

11 

9.8 

0 

0 

0 

0 

0

0

Aug.

1.1 

1.1 

.7 

.2 

0

.1 

22 

.8 

1.2 

.2

.2 

.2 

.2 

.2 

.7

.5 

.5 

.1 

.1 

.3

16 

10 

1.2 

186 

109

6.6 

4.0 

2.8 

2.5 

1.5 

1.4

Mean

0.16 

.98 

4.52

14.1

8.15 

10.8 

16.4 

33.3 

45.1 

28.7 

2.10 

12.0 

6.22

14.0

Sept.

1.4 

.7 

.6 

.7 

.5

0 

0 

0 

0 

0

.7 

.5 

0 

0 

0

.9

2.e

21 

14 

61

6.1 

5.2 

5.2 

3.4 

4.0

4.0 

4.6 

4.2 

5.0 

40

Run-off in 

acre-feet

10 

59 

278

10,240

501 

620 

1,010 

1,980 

2,780 

1,700 

129 

737 

370

10,170

 Winter discharge measurement made on this day.

Kobe.'- Stage-discharge relation affected by ifee Dec. 27 to Jan. 31.

("-B52 February 1936

UNITED STATES DEPAtmEHT OP THE INTERIOR 

Oeologl 1 Survey
SAN JUAN RIVER BASIN 

La Plata River near Farmington, H. Hex.

185

Location.- Water-'stage recorder and rock and concrete control, lat. 36°44'30n , long. 108° 

14'45", in SWi sec. 7, T. 29 N., R. 13 W., 1,800 feet upstream from mouth and 2s miles 

northwest of Farmington.

Records available.- March 1938 to September 1940.

Extremes.- Maximum discharge during year, 2,720 second-feet Aug. 24, f-om rating curve extended above 1,500 second-feet by logarithmic plotting; maximum gag>3 height, 4.50 feet 

Aug. 24; no flow during many periods.

1938-40:' Maximum gage height, 6.03 feet Sept. 11, 1939 (discharge not determined); 

no flow during many periods.

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

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

IS

16

17

16

19

SO

21

22

23

24

25

26

27

88

89

30

31

Oct.

i

i

i

i

i

i

i

2

2

Z

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Mov.

2

2

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Dec.

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

2

2

2

Jan.

3

3

3

3

3

3

4

4

b3

b3

b4

b3

«b!5

b!4

b!2

b!2

b!3

b!3

b!4

«b!4

b!5

b!5

b!6

b!7

»bl7

bl8

bl8

b!9

19

20

25

Feb.

24

27

13

11

13

13

11

11

11

10

13

13

15

15

17

17

14

12

10

10

10

10

9

13

25

32

54

25

20

-

Month

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

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

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

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

Water year 1939-4 o..... .................

liar.

21

17

16

15

19

19

19

19

14

11

14

8

5

10

6

6

5

4

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0

1

1

1

1

0

0

0

0

0

0

0

0

Seoondfoot-dayB

55

18

32

2,783

345

47S

228

5

4

3

12

1,191

549

2,920

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

1

0

0

0

0

1

1

0

MaxiMum

2

2

2

250

25

54

21

1

1

3

7

590

143

590

June

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

a3

July

a7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

aO

0

0

0

0

0

0

0

0

0

5

0

0

0

0

MSi^immi

1

0

0

0

3

9

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

0

0

29

4

1

0

0

0

0

2

1

0

0

0

0

1

3

6

6

590

457

78

7

3

1

1

1

Mean

1.8

.6

1.0

7.6

11.1

16.5

7.4

.2

.1

.1

.4

38.4

18.3

8.0

Sept.

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

118

143

60

52

45

6

5

3

3

2

9

8

94

Run-off in 

acre-feet

109

36

63

5,520

684

948

452

7*.9 9 9

6.0

24

2,360

1,090

5,790

Winter discharge measurement made on this day.

a Fragmentary or no gage-height record; discharge computed on baa Is of westher records and records for station at State line.

b Stage-dlacharge relation affected by Ice.

9-232 February 1936

TOTTED STATES DEPARTMENT OF THE INTERIOR 

Qeolog al Surrey
186 SAN JUAN RIVER BASIN

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., near mouth, 2 miles northwest of Red Mesa.

Drainage area.- 66 square miles.

Records available.- October 1933 to September 1940 In reports of Geological Survey, 

narcn 1928 to September 1940 In reports of State engineer.

Average discharge.- 12 years, 8.43 second-feet.

Extremes.- Maximum discharge during year, 1,480 second-feet Aug. 25 (gage h3lght, 5.90 

reet), from rating curve extended above 800 second-feet on basis of slops-area 

measurement; no flow Oct. 1 to Nov. 19, June 4 to Aug. 23, Aug. 28 to Se~>t. IS, 

Sept. 22-28.

1928-40: Maximum discharge, that of Aug. 25, 1940; no flow at times during 

1931, 1933-36, 1938-40.

Remarks.- Records poor. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

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. Hov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.5

.5

.5

*.6

.5

.5

.5

.5

.5

.5

-

Dec.

(*)

> 0.8

'

Jan.

 0.8

Feb.

 1.0

_

-

Month

Feb 

Mar

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

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

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

Water year 1939-4

Mar.

2.0

2.0

2.0

2.0

2.0

2.5

2.6

2.5

2.5

2.5

3.0

3.0

*3.2

2.8

2.4

2.2

4.2

5.0

7.4

12

10

9.7

9.4

9.0

9.0

9.4

10

10

9.7

7.4

7.1

Apr.

7.8

8.4

7.4

9.7

14

12

14

13

14

15

12

13

13

18

25

26

23

SO

19

24

29

32

34

34

30

27

26

25

25

24

-

Seoondfoot-days

0

5.2

24.8

1,237.9

24.8

29.0 

168.4

594.3

325.4

1.9

0

88.2

10.0

1,272.0

May

22

22

22

24

26

25

24

22

16

16

14

12

9.4

7.8

7.8

7.8

8.7

5.8

5.0

4.2

3.8

4.5

3.8

2.8

1.7

1.6

1.4

1.2

1.1

1.0

1.0

Maximum

0

.5

58

12

34

26

.9

0

80

4.5

80

June

0.9

.5

.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

0

0

0

-

July

l»n<immi

0

0

0

_

2.0

7.4

1.0

0

0

0

0

0

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5.6

80

2.0

.6

0

0

0

0

Mean

0

.17

.8

3.39

.8

1.0 

5.43

19.8

10.5

.06

0

2.85

.33

3.48

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.6

4.5

.5

0

0

0

0

0

0

0

.2

3.2

Run-off in 

acre-feet

0

10

49

2,450

49

58 

334

1,180

645

3.8

0

175

20

2,520

'Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 20 to Mar. 13.

0-232 February 1936

TJNITED STATES DEPARTMENT OF THE INTERIOR 

Qeologl. . Survey
SAN JUAN RIVER BASIN 

West Mancos River near Mancos, Colo.

187

Location.- Water-stage recorder, lat. 37°22 1 30", long. 108°15 1 20", Ir sec. 14. T. 36 N., 

R. 13 W., li miles upstream from confluence with Middle Mancos River and 3s miles 

northeast of Mancos.

Drainage area.- 42.1 square miles.

Records available.- September 1910 to December 1911, April 1938 to September 1940.

Extremes.- Maximum discharge during year, 247 second-feet May 17 (gage height, 2.49 

reet); minimum dally, 2.9 second-feet Dec. 15, but probably less during period of 

no record.

1910-11, 1938-40: Maximum discharge, 380 second-feet June 29, 1938 (gage height, 

2.93 feet), from rating curve extended above 220 second-feet; minimum dally, 2.5 

second-feet Aug. 20, 1939, but probably less during period of Ice effect.

Remarks.- Records good. No diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

8

9

10

11

12

IS

14

16

16

17

18

19

20

21

85

86

27

tw

31

Oct.

10

9.3

8.6

8.3

8.1

7.4

7.4

8.1

8.3

7.6

7.4

7.2

6.9

6.5

6.5

6.5

6.7

6.3

6.3

6.3

6.3

5.8

5.6

5.6

6.0

8.1

6.3

5.6

5.4

5.4

5.8

HOT.

5.6

5,6

5.6

5.2

5.2

5.2

5.2

4.9

5.4

5.2

4.7

4.7

4.7

4.7

4.5

4.5

4.5

4.5

4.7

4.5

4.5

4.1

4.1

4.1

4.1

3.7

4.1

4.1

4.3

4.5

-

Dec.

5.2

5.6

5.2

5.4

5.2

4.1

4.5

4.5

3.9

3.9

4.3

3.7

4.1

4.1

2.9

.

-

-

-

-

_

-

-

_

-

_

-

-

_

_

-

Jan. Feb.

Month

Aug 

Septeaber .................................

Water year

Mar.

_

_

_

_

-

_

_

.

_

-

_

_

_

_

-

7.6

7.4

8.1

9.0

10

12

20

19

20

23

26

26

84

16

17

19

Apr.

17

16

15

IS

24

24

21

19

19

20

21

26

37

56

66

57

45

47

76

111

126

124

126

126

120

126

120

91

SI

70

Seoondf (Kit-days

66.6

.

256.0 

543.1

-

*»7

76

99

117

142

142

140

158

144

142

142

137

137

137

165

170

175

206

188

142

122

109

111

105

111

111

126

144

144

135

140

149

Mmf1'flpiH|

5.6

_

26 

66

-

Jane

153

146

133

131

117

113

105

101

93

89

64

8S

90

91

84

74

70

66

62

59

54

51

47

42

3S

35

34

29

26

33

July

Og

25

23

20

20

18

17

16

16

15

14

13

18

18

12

18

17

15

13

12

11

10

11

11

10

8.S

12

18

11

9.3

S.6

V^plnpTm

2.9

_

4.1 

5.6

-

Aug.

7.6

7.2

6.0

5.2

4.9

5.2

6.7

6.0

5.4

4.9

5.S

5.6

5.2

4.7

4.3

4.3

4.1

4.3

4.3

5.2

6.3

10

10

18

25

26

16

12

9.9

8.3

7.6

Mean

6

QC

4 CO

4.44

_

8.26 

18.1

-

Sept.

7.4

9.3

S.5

S.I

7.4

6.9

6.5

5.8

5.6

5.S

5.6

5.5

6.9

6.9

6.5

6.0

6.3

54

66

54

34

37

33

26

20

17

17

15

20

33

Run-off In 

acre-feet

279

132

_

506 

1,080

-

9-21 400453 O - 41 - 13

BUTTED STATES DEPAFITCENT OP THE INTERIOR 

Qeolog al Survey
188 SAN JUAN RIVER BASIN

Mancos River near Towaoc, Colo.

Location.- Water-stage recorder, lat. 37°02', long. 108°45', in NWi sec. 18, T. 32 N., 

R. 17 W., at crossing of U. S. Highway 84, 12 miles south of Towaoc. Datum of 

gage Is 5,051.17 feet above mean sea level (unadjusted). Prior to Mar. 15, 1940, 

water-stage recorder 2-| miles downstream.

Drainage area.- 550 square miles; prior to Mar. 15, 1940, 558 square miles.

Records available.- October 1933 to September 1940 In reports of Geological Survey. 

February 19H1 to September 1940 In reports of State engineer.

Average discharge.- 19 years, 54.3 second-feet.

Extremes.- Maximum discharge during year, 4,600 second-feet Sept. 22 (gage height, 

8.65 feet, from floodmarks), by slope-area method: no flow Oct. 3-5, June 25 to 

July 26, July 31 to Aug. 6, Aug. 13-20, Sept. 10-17.

1921-40: Maximum discharge, 4,900 second-feet Aug. 26, 1934 (gage height, 6.55 

feet, site and datum then In use); 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 1939 to September 1940

Day

1

a

z

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.

1.0

.6

0

0

0

.6

1.0

1.6

3.0

4.9

3.2

2.2

1.6

2.0

2.0

2.0

2.0

1.0

1.0

1.2

1.2

1.2

al.2

al.2

al.5

al.5

al.8

a2.0

a2.5

a3.0

a3.5

HOT.

a3.5

3.S

3.8

3.8

3.8

4.0

4.0

4.3

4.0

4.0

4.6

4.9

4.9

5.2

4.6

4.0

4.0

3.4

3.2

3.4

3.6

3.6

3.4

3.4

3.4

3.4

3.6

3.6

4.0

3.6

Dec.

3.4

3.2

3.0

3.2

3.2

3.2

3.2

3.2

3.2

3.0

3.2

3.6

3.0

3.0

2.4

2.6

3.6

4.0

4.6

2.6

1.6

1.4

2.4

2.4

4.0

3.6

2.2

3.0

2.6

3.0

3.4

Jan.

3.0

4.6

6.4

5.5

4.9

4.0

2.0

3.0

3.6

4.6

4.0

5.5

6.1

3.6

2.6

*4.2

4.2

4.5

4.2

4.3

5.0

4.0

5.0

5.4

4.9

4.8

4.7

4.4

5.1

5.2

5.5

Feb.

6.0

7.2

6.4

5.9

5.4

4.5

5.1

4.8

4.6

5.5

6.1

6.4

6.1

5.8

7.0

7.0

5.5

3.4

5.5

5.5

7.0

7.0

7.0

7.0

9.5

12

20

25

31

_

-

Month

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

^ ..... ..................................

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

Water year 1939-'10......................

Mar.

41

36

33

33

32

39

30

26

3S

49

45

36

22

14

16

19

22

24

22

23

23

24

28

31

32

34

32

36

35

30

26

Apr.

27

30

30

36

40

45

46

40

38

36

38

40

54

78

114

118

90

67

78

125

168

150

a!70

a!45

alOO

a75

a80

a8S

a64

a52

Seoondf dot-days

51.5

116.8

94.0

6,675.2

138* 8

239.2

931

2,262

3,113

444.4

184.9

315.9

1,420.5

9,312.0

May

a45

a40

a48

a90

a!60

a!20

al30

a!40

145

145

127

122

118

110

117

118

118

178

208

125

90

84

72

58

58

54

60

64

60

56

53

Mn-wl-m^n

4.9

5.2

4.6

242

6.4

31

49

170

208

58

174

114

857

857

June

58

58

58

46

39

28

23

21

17

15

14

12

10

9.9

8.2

7.1

5.4

5.0

3.6

2.4

2.4

1.2

.1

.1

0

0

0

0

0

0 -

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

174

S.8

2.0

.1

0

Minimum

0

3.2

1.4

0

2.0

3.4

14

27

40

0

0

0

0

0

Aug.

0

0

0

0

0

0

2.4

35

13

4.4

2.4

.1

0

0

0

0

0

0

0

0

18

16

11

5.0

114

32

24

13

11

8.2

6.4

Mean

1.66

3.89

3.03

18.3

4.48

8.25

30.0

75.4

100

14.8

5.96

10.8

47.4

25.4

Sept.

4.6

4.0

4.6

6.0

8.2

6.0

4.0

1.0

.1

0

0

0

0

0

0

0

0

35

96

73

46

857

53

35

26

25

30

22

28

56

-

Run- off in 

aore-feet

102

232

186

13,230

275

474

1,850

4,490

6,170

881

367

627

2,820

18,470

 Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for La Plata River a*. ColoradoNew Mexico State line.

Hote.- Stage-discharge relation affected by ice Jan. 16 to Feb. 8.

9-232 February 1936
SAN. JUAN RIVER BASIN 189

Middle Mancos River near Mancos, Colo.

Location.- Water-stage recorder, lat. 37 0 22'15", long. 108°13'3511 , in SEi sec. 13, T. 

36 N., R. 13 W., 500 feet upstream from East Mancos River and 4 niles northeast of 

Mancos.

Drainage area.- 13.7 square miles.

Records available.- March 1938 to September 1940.

Extremes.- Maximum discharge during year, 47 second-feet May 4 (gage height, 2.12 feet); 

no flow Nov. 21, and probably at times during period of ice effect.

1938-40: Maximum discharge, 131 second-feet May 17, 1938 (gape height, 2.64 

feet), from rating curve extended above 70 second-feet; no flow Aug. 24-27, Sept. 

3-5, Nov. 21, 1939, and at times during period of no record.

Remarks.- Records fair. Diversions above station for Irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

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.

0.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.4

.3

.3

.3

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

Hov.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

0

.1

.1

.1

.1

,1

.1

.1

.2

.2

-

Dec.

0.2

.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

.1

.1

.1

Jan.

 0.1

'

Feb.

S

 0.1

_

-

Month

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

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

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

Water year 1939-4C) ......................

Mar.

0.1

.1

.1

.1

.1

.2

.2

.2

.0

 2

.2

.2

.2

.2

.2

.3

.3

.3

.4

.4

.5

1.0

1.5

2.0

2.6

2.6

2.6

2.5

1.9

1.8

2.2

Apr.

2.2

2.2

2.3

2.3

3.5

3.5

3.2

3.3

3.7

4.0

3.8

6.0

9.3

15

17

13ii

12

19

27

31

32

34

34

2S

31

31

25

20

17

Seoondfoot-days

5.9

3.8

3.4

-

3.1

2.9

25.4

446* 3

671« 8

154.0

42.0

24.0

14.8

1,397.4

May

19

21

27

36

41

36

37

29

32

27

24

28

28

31

29

25

30

28

19

14

11

11

10

9.6

S.7

S.7

10

11

11

10

9.8

Maximum

0.4

.3

.2

-

2.6

34

41

9.6

2.3

2.2

i!e

41

June

9.6

S.7

7.9

6.5

5.4

5.2

4.6

4.0

3.5

2.8

3.8

6.5

6.7

5.8

4.4

4.4

6.7

6.5

6.5

6.2

5.6

5.2

5.0

4.4

3.8

3.5

3.2

2.6

2.5

2.5

July

2.3

2.3

2.0

1.9

1.9

2.3

1.9

l.S

1.4

1.3

1.1

1.1

1.1

1.0

1.0

1.0

2.3

1.9

1.5

1.3

1.1

1.0

.9

1.0

1.0

.6

1.0

.9

.7

.7

.7

Minimum

0

0

.1

.1

-

g

g

2

.1

.2

.7

.5

.6

.4

.2

0

Aug.

0.8

.7

.5

.5

.5

.6

1.0

.S

.7

.6

.6

.6

.6

.5

.4

.5

.5

.5

.5

.4

.4

.8

.8

1.4

1.5

2.2

1.4

1.1

1.0

.8

.8

Mean

0.19

.13

.11

-

.10

.10

 8S

14*9

2l!v

5.13

1.35

.77

.49

3.82

Sept.

0.8

.8

.8

.7

.6

.6

.5

.4

.4

.3

.3

.3

.4

.3

.3

.3

.3

.6

1.6

1.0

.4

.5

.3

.3

.3

.2

.2

.2

.3

.8

Run-off in 

acre-feet

12

7.5

6.7

-

6.1

5.8

50

886

1,330

305

83

48

29

2,770

Mote.- Stage-discharge relation affected by ice Dec. 15 to Mar. 13.

9-232 February 1936

UNITED STATES DEPAP-TIEHT OF THE INTERIOR 

Oeolog il Surrey
190 SAN JUAN RIVER BASIN 

East Mancos River near Mancos, Colo.

Location.- Water-stage recorder, lat. 37°22'10", long. 108°13'35", in NEi sec. 24, T. 

36 N.,-R. 13 W., 800 feet upstream from mouth and 4 miles northeast of Mancos.

Drainage area.- 11.1 square miles.

Records available.- March 1938 to September 1940.

Extremes.- Maximum discharge during year, 90 second-feet May 15 (gage height, 1.23 

feet); minimum dally, 0.2 second-foot Sept. 6.

1938-40: Maximum discharge, 145 second-feet Apr. 28, 1938 (gage height, 1.46 

feet); no flow Aug. 17-27, 1939.

Remarks.- Records good, above 5 second-feet, and fair below except those for period of 

ice effect, which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

28

25

24

85

26

27

28

29

SO

31

Oct.

1.0

1.1 1.1

al.l

al.l

al.l

al.l

al.l

1.1

1.0

.9

.7

.7

a. 8

a. 9

1.1

1.1

1.1

1.1

1.1

1.0

1.0

1.1

1.1

1.3

1.9

1.5

1.3

1.4

1.3

1.5

HOT.

1.6

1.6

1.5

1.5

1.5

1.5

1.3

1.2

1.4

al.3

al.2

al.l

1.1

1.1

.9

.8

a. 9

a. 9

a. 9

.9

.9

1.1

1.3

al.2

al.l

al.l

1.1

1.1

al.O

al.O

-

Dec.

al.l

al.l

al.l

1.1

1.4

1.1

1.1

al.l

al.l

al.O

1.0

.8

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Jan.

 0.5

'

Feb.

 0.7

.

-

Honth

Fet 

Mar

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

Hay.......................................

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

Water year 1939-4 0......................

Mar.

0.8

.8

.8

1.0

1.0

1.0

1.0

1.0

1.5

1.5

1.5

2.0

2.0

2.2

2.4

2.2

2.8

3.0

3.8

5.4

5.7

9.5

12

14

17

16

14

9.5

7.2

6.3

6.9

Apr.

6.6

5.4

5.4

4.2

4.5

4.2

4.8

5.7

5.7

6.3

6.6

9.5

15

27

35

25

17

16

29

40

45

45

45

33

26

26

25

22

20

17

-

Seoondfoot-days

34.7

35.1

22.7

-

15.5

20.3 

155.8

576.9

1,164

341.7

60.3

37.6 

80.6

2,545.2

May

17

23

30

42

44

45

47

41

38

36

3S

34

38

59

70

64

68

50

32

25

23

25

24

29

29

35

37

34

29

27

31

Maximum

1.9

1.6

1.4

-

17

45

70

31

4.8

5.1 

17

70

June

31

27

23

22

17

15

14

13

12

9.5

10

11

10

11

8.9

6.9

6.6

7.2

10

9.5

8.4

8.9

7.S

7.2

6.3

6.3

5.7

5.1

5.4

6.0

July

4.8

4.2

3.S

3.6

3.4

2.6

2.4

1.9

l.S

1.7

1.6

1.6

1.4

1.1

1.4

1.1

1.6

2.0

1.6

1.2

1.2

1.1

1.5

1.5

1.0

.7

1.8

2.1

1.7

1.5

1.4

Minimum

0.7

.8

.5

-

_

.8

4.2

17

5.1

.7

.5 

.2

.2

Aug.

0.9

1.0

.8

.6

.6

1.0

1.8

1.1

.9

.8

1.2

1.0

.8

.6

.7

.6

.6

.5

.5

.8

.6

.8

.5

1.5

3.4

5.1

3.6

2.2

1.4

1.0

.7

Mean

1.12

1.17

.73

-

.5

.7 

5.03

19.2

37.5

11.4

1.95

1.21 

2.69

6.95

Sept.

0.8

.7

.6

.6

.4

.2

.4

.4

.4

.4

.4

.4

.9

.5

.4

.4

.4

10

17

11

6.0

6.3

4.2

3.4

2.4

1.9

1.7

1.5

2.4

4.5

Run-off in 

acre-feet

69

70

45

-

31

40 

309

1,140

2,310

678

120

75 

160

5,050

a No gage-height record; discharge computed on baala of weather records. 

Note.- Stage-dlacharge relation affected by Ice Dec. 14 to Bar. 13.

r-252 February 1936

 UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolog al Surrey
PARIA RIVER BASIN 191

Paria River at Lees Ferry, Arlz.

Location.- Water-stage recorder, lat. 36°52'15", long. 111 036'30", in NWiNEi sec. 13, 

T. 40 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 (general adjustment of 

1929).

Drainage area.- 1,570 square miles (revised). 

Records available.- November 1923 to September 1940. 

Average discharge.- 17 years, 36.3 second-feet.

Extremes.- Maximum discharge during year, 14,000 second-feet Sept. 6 (gage height, 16.0 

reet), from rating curve extended above 1,100 second-feet on basis of slope-area 

determinations at gage heights 11.2 feet and 12.4 feet; minimum, 2 second-feet 

July 25.

1923-40: Maximum discharge, 16,100 second-feet Oct. 5, 1925 (gage height, 17.5 

feet), by float-area method; no flow during several periods In December and January 

of many years.

Remarks.- Records good except those for periods of Incomplete gage-height record and 

tnose above 1,000 second-feet, which are fair. During the year 73 discharge measurements were made. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

18 

14 

16

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

81

Oct.

23 

17 

15 

19 

30

21 

18 

17 

17 

18

17 

15 

14 

13 

14

13 

18 

19 

19 

18

17 

16 

17 

15 

14

13 

13 

12 

12 

12 

13

HOT.

12 

13 

13 

12 

13

13 

13 

13 

18 

22

19 

15 

17 

18 

17

17 

16 

16 

15 

14

14 

15 

16 

16 

18

19 

18 

21 

42 

28

Dec.

19 

19 

19 

20 

19

20 

20 

20 

20 

20

20 

19 

18 

16 

18

19 

21 

20 

19 

18

17 

18 

19 

15 

20

21 

9 

6 

6 

6 

26

Jan.

35 

30 

29 

26 

27

36 

21 

14 

19 

36

50 

199 

323 

32 

12

8 

10 

15 

16 

15

15 

16 

14 

16 

16

27 

35 

29 

27 

25 

26

Feb.

28 

185 

allO 

69 

59

33

27 

35 

21

17

21 

21 

16 

15 

19

25 

18 

18 

20 

17

18 

19 

22 

24 

22

27 

186 

82 

51

Month

Dot 

Hoi 

Dec

C

Jar 

Pet 

Max

Apj

JIB 

Ju] 

Aug 

8«i

1

alendar year 1939. .....................

nary

t ember .................................

later year 1939-4

Peak discharge. -

(1:36 a.m.) 5,800 e 

a Gage -height rec 

record for precedli

0......................

Mar.

43 

27 

21 

20 

17

15 

13 

14 

14 

13

13 

12 

11 

11 

12

13 

12 

12 

12 

12

11 

10 

10 

8

7

7 

8 

8 

9 

10 

8

Apr.

7 

6 

14 

10 

7

7 

6 

6 

5 

5

5 

4 

4 

4 

4

4 

5 

5 

7 

6

5 

4 

5 

6 

5

4 

5 

5 

5 

4

Seoondfoot-days

509 

513 

547

16,838

1,199 

1,225 

413 

169 

124 

93 

105 

1,224 

7,214

13,335

May

4 

4 

4 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

4 

4 

12 

11 

7

5 

4 

4 

4 

3

3 

3 

3 

3 

3 

3

Maximum

30 

42 

26

6,200

323 

186 

43 

14 

12 

5 

5

2,300

2,300

June

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

4 

3

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

5

J.ly

4 

3 

5 

5 

3

3 

3 

3 

3 

3

3 

3

3 

3 

3

3 

4 

4 

3 

3

4 

4 

3 

3 

3

3 

3 

5 

4 

3 

3

Aug.

3 

3 

3 

3

4

4 

4 

4 

4 

4

4 

4 

4 

4 

4

5 

5 

5 

5 

5

5 

54 

45 

796 

142

45 

21 

15 

9 

6 

5

Sept.

4 

5 

14 

34 

18

al,100 

al,600 

94 

29 

17

17 

38 

168 

875 

127

63 

293 

2,300 

112 

36

25 

27 

21 

66 

50

20 

22 

14 

13 

12

Minimum Mean *-£££»

12 16.4 1,010 

12 17.1 1,020 

6 17.6 1,080

2 46.1 33,410

8 38.7 2,380 

15 42.2 2,430 

7 13.3 819 

4 5.6 385 

3 4.0 246 

3 3.1 184 

3 3,4 208 

3 39.5 2,430 

4 240 14,310

3 36.4 26,450

Aug. 24 (6:30 a.m.) 5,130 sec. -ft.; Sept. 6 (11 p.m.) 14,OCO sec. -ft.; Sept. 14 

ec.-ft.; Sept. 18 (4:30 a.m.) 7,800 sec. -ft. 

ord incomplete; discharge computed from gage^pelghts estimated on basis of 

ig and following days and floodmarks.

0-232 February 1936

UNITED STATES DKPAjrHCEHT OF THB IHTKRIOR 

Qeologi J. Survey
192 LITTLE COLORADO RIVER BASIN

Little Colorado River above Lyman Reservoir, near St. Johns, Arlz.

Location.- Water-stage recorder, lat. 34°20', long. 109°22', in NEiSEi sec. 27, T. 11

 N.~ R. 28 E., 1 mile downstream from Coyote Creek, 4i miles upstream from Lyman 

Dam, and 13 miles south of St. Johns. During period Apr. 10-26, staff gage at same 

site and datum; Aug. 2 to Sept. 30, staff gage 1 mile upstream, 600 feet below mouth 

of Coyote Creek, at different datum.

Drainage area.- 747 square miles.

Records available.- April to September 1940.

Extremes.- Maximum discharge during period, 16,000 second-feet July 25, by slope-area 

method; minimum, about 0.5 second-foot July 16-24.

Remarks.- Records good prior to July 15 and poor thereafter. Flow regulated by several

 small reservoirs. Diversions above station for irrigation. Staff gagee, used Apr. 

10-26 and Aug. 2 to Sept. 30, read twice daily. Water-stage recorder destroyed by 

flood on July 25.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

83 

84 

25

26 

27 

28 

29 

30 

31

Oot. Hov. Dec. Jan. Peb.

Month

Oot 

HOT 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

T

alendar year

he period

Mar. Apr.

. al5

13

18 

13 

19 

3.20 

22

14 

7 

5 

2 

2

a2 

2 

2

1 

2

2 

3 

3 

2 

3

Seoondfoot-days

292 

120 

328 

3,140.7 

709 

324

-

May

3 

2 

3 

2 

2

1 

1 

1 

1 

3

5 

5 

4 

4 

3

3 

7 

8 

5 

4

4

3 

8 

9

7

6 

3 

3 

4 

3 

3

MqyfaffliHH

22 

9 

125 

1,600 

130 

80

-

June

3 

2 

2 

2 

2

2 

2 

2 

3 

2

2 

2 

2 

2

1

1 

1 

2 

2 

2

2 

59 

14 

10 

5

125 

20 

8 

18 

28

July

8 

6 

5 

5 

5

4 

3 

3 

3 

3

3 

2

1 

.6 

.6

a.5 

a.5 

a.5 

a.5 

a.5

a.5 

a.5 

a.5 

a.5 

al,600

al,300 

alOO 

a40 

a20 

a!5 

9

IHyi^nnTin

1

1 

1

.5 

2 

3

-

Aug.

7 

6 

a6 

a5 

a.5

a4 

a4 

a3 

3 

2

2

4 

5 

70 

130

34 

a5 

a5 

a5 

110

alO 

50 

44 

41 

49

a60 

a 15 

a 10 

a5 

a5 

a.5

Mean

9.7 

3.9 

10.9 

101 

22.9 

10.8

-

Sept.

80 

40 

a30 

4 

3

7 

5 

5 

4 

4

4 

6 

4 

4 

4

3 

4

6 

6 

6

8 

7 

8 

8 

8

8 

10 

13 

15 

10

Run-off in 

ao re-feet

579 

238 

651 

6,250 

1,410 

643

9,750

a Doubtful or no gage-height record; discharge Apr. 1-9 computed on basis of weather records and 

record for following days; Apr. 14, 21 Interpolated; July 16-24 computed on basis of preceding 

trend of flow, weather records, and reservoir records; remaining periods computed en basis of 

reservoir records and record for preceding and following days.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE IHTERIOR 

Geolog. al Survey
LITTLE COLORADO RIVER BASIN 

Lyman Reservoir near St. Johns, Ariz.

193

Location.- Water-stage recorder, lat. 34°22', long. 109°23', In sec. 9, T. 11 N., R. 28 

E., In control tower of Lyman Dam on Little Colorado River, 9f miles south of 

St. Johns.

Drainage area.- 790 square miles.

Records available.- May to September 1940.

Extremes.- Maximum contents during period, 5,770 acre-feet July 28 (ga?e height, 32.24 

feet); minimum, 29 acre-feet July 25 (gage height, 20.10 feet).

Remarks.- Reservoir is formed by an earth and rock-fill dam, rubble faoed; dam completed 

and storage began in 1920; original dam washed out Apr. 14, 1915. Capacity, 21,900 

acre-feet between gage height 20.0 feet (bottom of Lyman canal) and 50.0 feet (average 

elevation of spillway crest). Contents between 2.0 feet, sill of o-Jtlet gates, and 

20.0 feet, 4,500 acre-feet (based on survey in 1920), not available for release to 

Lynan canal but can be released to the river channel. Water is usel for irrigation 

in the vicinity of St. Johns. Figures given herein represent contents above gage 

height 20.0 feet.

Capacity table (gage height, in feet, and contents, in acre-feet)

(Prepared by Field, Fellows, and Hlnderlider, firm of consulting engineers, from surveys of the

firm)

20.0 0

20.5 153

21.0 315

22.0 658

24.5 1,630

27.5 3,030

31.5 5,285

37.0 9,170

44.0

50.0

15,310

21,900

Contents, In acre-feet, at 12 p.m., Hay to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

80

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Fee. Mar. Apr. M«y

_

-

-

_

-

_

_

-

-

-

_

-

-

-

-

.

-

-

-

1,070

1,000

950

901

852

804

752

705

654

604

566

528

June

481

436

396

382

368

355

341

325

312

308

292

282

275

269

252

236

217

201

185

169

156

305

348

348

328

604

590

552

570

562

-

July

542

515

487

453

463

392

368

338

312

282

256

243

223

211

188

185

179

172

153

134

119

106

88

54

3,180

5,560

5,740

5,770

5,750

5,740

5,670

Aug.

5,620

5,540

5,430

5,340

5,260

5,180

5,080

5,060

4,880

4,780

4,650

4,550

4,440

4,480

4,640

4,580

4,480

4,400

4,310

4,400

4,390

4,480

4,510

4,550

4,620

4,720

4,720

4,710

4,690

4,670

4,660

Sept.

4,760

4,800

4,890

4,880

4,880

4,880

4,830

4,770

4,700

4,650

4,610

4,560

4,500

4,460

4,410

4,350

4,360

4,430

4,400

4,370

4,350

4,320

4,300

4,280

4,250

4,200

4,170

4,150

4,130

4,110

Monthly gage height and contents. May to September 1940

Date

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

Gage height 

(feet)

29.52

Contents 

(acre- feet)

4,110

Change ir contents 

during- month 

(acre-feet)

-550
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LITTLE COLORADO RIVER BASIN 195

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

Location.- Water-stage recorder, lat. 34°38', long. 104°40', in SWiSV'i sec. 2, T. 14 N., 

R. 25 E., 500 feet upstream from Zuni River and 3 miles northwest of Hunt.

Drainage area.- 3,680 square miles, including 830 square miles in closed basin surrounding Quemado , N. Hex.

Records available.- March to September 1940.

Extremes.- Maximum discharge during period, 577 second-feet July 26 (gage height, 3.46 

feet); no flow during extended periods.

arks.- Records good. Diversions above station for irrigation. Some regulation by

numerous reservoirs above station, the largest of which is Lyman Peservoir (see p. 

193).

Discharge, in second-feet, water year October 1939 to September 1940

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

SO

31

Oct. Hov. Dec. Jan. Feb.

Month

November. . . . .

Karen.....................................

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

fcy.. .....................................

Aug 

Sep

ust. ...................................

tember. ................................

The perlod. .............................

liar. Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2.1.1

0

0

0

0

0

.1

0

0

0

0

Seoondfoot-days

0

.5

0

0

1.455i2 

1,515

-

May

Maximum

0

0

0

243 

256 

117

-

June Jily

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

20

243

8

.9

.2

.1

0

Mlnl^wi

0

0

0

0

0

0 

15

-

Aug.

0

0

0

0

0

0

3

.2

0

0

0

0

0

0

18

7

6

15

9

18

97

22

17

85

136

214

256

221

153

105

73

Mean

0

o"

0

46J9

50.5

-

Sept.

55

40

31

25

17

15

85

117

88

65

51

40

46

41

40

31

29

82

58

63

66

65

60

82

50

38

30

32

45

28

Run-off in 

acre-feet

0

1.0

0

0

540

2,890 

3,000

6,430

Peak discharge.- July 26 (6 a.m. 

298 sec.-ft.

577 sec.-ft.; Aug. 21 (4 a.m.) 186 sec.-ft.; Aug. 27 (2 p.m.)

9-832 February 1936

UNITED STATES DEPA"TMEHT OP THE INTERIOR 

Oeoloj. al Survey
196 LITTLE COLORADO RIVER BASIN 

Little Colorado River near Hunt, Ariz.

Location.- Water-stage recorder, lat. 34°39", long. 109°42', in NWiNWi sec. 4, T. 14 N., 

R. 25 E., at bridge on U. S. Highway 260, 2 miles downstream from Zuni Fiver and 5 

miles northwest of Hunt. Staff gage at same, site and datum Mar. 22 to Apr. 10, 1940.

Drainage area.- 6,280 square miles (revised), Including 830 square miles in closed basin 

surrounding Quemado, N. Hex., and excluding 964 square miles in North Plains Basin, 

New Hex., a closed basin.

Records available.- May 1929 to October 1933 and March to September 1940.

Extremes.- Maximum discharge during year, 2,110 second-feet July 26 (gage freight, 10.34 

feet); no flow on several days.

1929-33, 1940: Maximum discharge, 8,000 second-feet July 28, 1929 (gage height, 

19.0 feet, datum then in use); no flow at times in various years.

Remarks.- Records good except those during period of unstable control, July 25 to Aug. 

26, which are fair. Diversions above station for irrigation. Some regulation by 

numerous reservoirs above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

21

26

aso

Oct. HOT. Dee. Jan. Feb.

Month

Feb 

Mar

HUT. ...

The period

Mar.

_

-

_

_

-

_

.

_

_

-

_

_

_

-

_

_

_

-

_

0.3

.3

.3

.3

.3

.2

.3

.7

.3

.3

Apr.

0.2

.4

.2

.2

.1

.2

.1

.1

.2

.2

o

.2

.2

.2

.2

.2

.5

.8

.4

.2

.2

.2

5

4

1

1

.9

.9

.9

.S

Seoondfcot-days

19 9

3,189

-

May

0.6

.6

.4

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

0

.1

.1

.1

.1

.1

0

.1.1.1.1.1

.1.1

.1.1.1

Maximm

393

0

June

0.1

.2

.2

.2

.1

0

0

0

0

0

0

0

0

0

.9

.3

0

0

0

.1

.1

.1

.1

.1

.3

.3

.3

.3

.4

.6

-

July

38

7

1

.2

.2

.2

.2

.2

.3

.7

.8

.7

.9

.6

.3

9

.5

.2

.3

.3

.1

0

.1

.1

35

850

130

7

280

45

5

Minimum

0 2

IS

-

Aug.

2

al

a. 2

a.l

0

0

140

130

22

e

6

6

5

5

2S9

70

11

14

9

70

140

240

60

100

220

690

302

245

156

107

73

Mean

106

-

Sept.

54

41

31

25

18

393

324

145

98

6S

55

67

362

172

66

39

33

268

178

83

75

75

62

89

55

42

35

46

108

82

-

Run-off in 

acre-feet

39

6,330

15,380

Peak discharge.- July 26 (2:20 p.m.) 2,110 sec.-ft.; Aug. 26 (7 a.m.) 1,120 sec.-ft.j Sept. 6 

2:40 p.m.) oss so,..-ft-..

a Ho gage-1 

Aug. 3 and 5

(2740 p.m.) 922 sec.-ft.

a Ho gage-height record; discharge computed on basis of engineer's field observations of flow

Iff. 3 ftnri R.

9-238 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeologi I Surrey
LITTLE COLORADO RIVER BASIN 

Little Colorado River near Woodruff, Arlz.

197

Location.- Water-stage recorder and concrete control, lat. 34°48', long. 110°03', In 

sec. 7, T. 16 N., R. 22 E., 14 miles northwest of Woodruff and 4 miles downstream 

from Sliver Creek. Datum of gage Is 5,123.5 feet above mean sea level (from river 

profile map, based on general adjustment of 1929).

Drainage area.- 8,100 square miles (revised).

Records available.- March 1905 to December 1908, December 1915 to December 1919 (fragmentary), April 1929 to December 1933, September 1935 to September 1940.

Extremes.- Maximum discharge during year, 13,000 second-feet July 26 (gage height, 13.45 

feet), by slope-area method; no flow part of each month from March to July.

1929-40: Maximum discharge, that of July 26, 1940; no flow on some days In spring 

or summer of each year.

Maximum discharge recorded, 25,000 second-feet Dec. 5, 1919 (page 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. Diversions above station for Irrigation. Some regulation by 

reservoirs above station (combined capacity, about 73,000 acre-feet).

Discharge, in secend-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

IS

13

14

16

16

XI

1*

19

20

81

28

83

84

85

86

27

28

29

30

31

Oct.

Z

2

3

3

4

5

5

3

3

3

3

3

2

3

2

2

2

2

3

2

2

2

3

3

4

5

7

10

8

5

 or.

8

7

5

4

3

4

5

5

8

13

24

12

9

8

S

6

6

6

6

6

6

6

6

6

8

6

4

3

23

15

-

Dec.

S3

13

8

6

6

*6

6

5

6

5

4

4

*b4

b4

M

4

5

b5

b4

b4

b4

b4

b4

Jan.

b4

b4

t>6 *e

8

8

20

25

26

32

22

15

12

b6

be

b7

b7

b7

b7

*b9

11

blO

b9

b9

b!3

12

12

11

10

10

12

Feb.

le

118

*72

26

16

13

12

12

11

10

12

12

blO

10

12

12

9

S

*8

7

8

9

10

12

12

12

11

10

8

-

-

Month

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

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

MBT. ...............

.filly......................................

Wator year 1939-4

Mar.

6

7

7

6

6

6

6

6

6

6

6

6

5

5

5

5

6

6

6

6

5

5

4

2

2

.8

2

.8

.3

0

.4

Apr.

0.5

.2

.1

.1

0

0

0

cl

cl

cl

C.2

cO

cO

CO

cl

c.5

c.3

24

11

6

5

4

3

14

4

1

.5

.4

.4

.6

-

Seoondfcob-days

108

236

176

5,253.4

360

502

140.3

_ "

90

7,381.2

7,290.9 

6,376

23,243.4

May

0.9

1

.4

.3

0

0

0

0

0

0

0

.2

0

0

0

0

0

0

0

0

0

0

.2

0

.1

.1

0

0

0

0

0

Maximum

10

24

29

338

32

1 J.1O 1 Q 

7

24

1

60

5,270

1,110 

1,030

5,270

June

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

13

10

7

60

-

July

10

e

6

2

.7

0

0

0

0

0

0

0

0

0

0

184

349

26

6

2

.5

0

0

0

31

5 , 270v

682 /

sy

186

299

38

Minimum

2

3

4

0

4

7

0

0

0

0

0

.9

26

0

Aug.

15

9

6

5

4

4

4

190

65

26

10

6

3

.9

L.060

482

56

105

280

218

852

217

243

397

879

1,110

367

263

181

127

86

Mean

3.5

7.9

5.7

14.4

11.6

17.3

4.53

2.66

.10

3.0

238

235

229

63.5

Sept.

65

47

50

39

26

52

536

175

121

77

63

617

1,030

411

121

59

43

859

573

127

95

103

203

337

99

62

80

269

328

209

Run-off in 

acre-feet

214

468

349

10,420

714

996

278

158

6.3

179

14,640

14,460 

13,640

46,100

Peak discharge.- July 16 (Ilr30 p.m.) 2,670 sec.-ft.; July 26 (6$40 a.m.) 13,000 aec.-ft.; Aug. 

15 (9:45 a.m.) 4,540 sec.-ft.; Aug. 21 (3 a.m.) 2,070 aec.-ft.; Aug. 25 (10 p.m.) 2,120 aec.-ft.; 

Sept. 12 (9tlO p.m.) 4,210 sec.-ft.

 Winter discharge measurement made on thla day.

b Stage-discharge relation affected by Ice.

c Construction of concrete control; discharge based on engineer's field estimates.
198 LITTLE COLORADO RIVER BASIN

Little Colorado River at Grand Falls, Arlz.

Location.- Water-stage recorder, lat. 35°26", long. 111°12', In T. 24 II., R. 11 E., unsurveyed, at Grand Falls, on Navajo Indian Reservation, 38 miles northeast of Flagstaff, and 96 miles upstream from mouth. Datum of gage is about 4,440 feet above mean 

sea level (from river-profile map).

Drainage area.- 21,200 square miles (revised). 

Records available.- November 1925 to September 1940. 

Average discharge.- 15 years, 304 second-feet.

Extremes.- Maximum discharge during year, 20,100 second-feet July 27 (gage height, 19.57 

feet); no flow on many days.

1925-40: Maximum discharge, 50,500 second-feet Apr. 5, 1929 (gage height, 30.0 

feet); no flow during some periods in most years.

A discharge of about 120,000 second-feet occurred Sept. 19, 1923 (gage height, 47.0 

feet, from floodmarks).

Remarks.- Records excellent except those for day of ice effect or periods of incomplete 

gage-height record, which are fair. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September

Day

1

a

3 

4

5

6 

7 

8 

9 

10

11 

18 

13 

14 

IS

16 

17 

18 

19 

20

81 

28 

23 

24 

85

86 

27 

88 

29 

50 

31

Oct. Hov. Dec.

0 

0 

3 

13 

24

22 

17 

12 

6 

4

1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0

13

23 

19

20 

IS

16 

16 

15 

19 

b20

18 

12 

9 

8 

12

14 

12 

11 

10 

13

17 

17 

16 

15 

14 

14

Feb.

13 

13 

57 

465 

278

277 

209 

164 

135 

130

114 

88 

72 

65 

54

54 

51 

48 

38 

34

33 

31 

27 

22 

20

20 

16 

12 

155

Month

Oot 

HOT 

Deo

C

Jan 

Fat) 

Mar 

Apr

ssAll 

Aug 

Bep

V

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

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

alendar year 193

ater year 1939-

Mar.

555 

619 

545 

576 

375

316 

a260 

a230 

a 170 

a!40

a!20 

132 

334 

531

311

a220 

alSO 

allO 

98

87

81 

7S 

82 

92 

107

116 

102 

100 

98 

86 

72

Apr.

78 

97 

84 

65 

50

40 

36 

259 

525 

462

354 

312 

a240 

alBO 

a!40

alOO 

a 80 

a 60 

43 

27

a!5 

alO 

a5 

12 

31

26 

a!5 

alO 

a6 

a3

Seoondfoot-days

0 

0 

104

42,076

412 

2,695 

6,793 

3,365 

1 

0 

6,167 

21,199 

25,938

66,674

May

al 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

24

4,520

23 

465 

619 

525 

1 

0 

4,540 

3,170 

3,320

4,540

June July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

4 

2 

1 

0 

0

0 

4,540 

1,070 

a320 

alSO 

a BO

Minimum

0 

0 

0

0

0 

12 

72 

3 

0 

0 

0 

1 

66

0

Aug.

a60 

a40 

aC5 

21 

14

8 

4 

2 

1 

3

84 

2 

30 

19 

1,320

3,170 

995 

474 

203 

483

486 

891 

2,270 

2,260 

1,720

2,910 

1,990 

945 

383 

238 

148

Mean

0 

0 

3.4

115

13.3 

92.9 

219 

112 

.03 

0 

199 

684 

865

182

Sept.

102

72 

66 

517 

411

159 

allO 

a 90 

358 

152

120 

182 

1,500 

3,270 

1,610

a630 

a260 

alSO 

3,320 

1,980

606 

2,710 

904 

1,330 

832

470 

187 

116 

534 

3,190

Run-off in 

acre-feet

0 

0 

206

83,450

817 

5,350 

13,470 

6,670 

2.0 

0 

12,230 

42,050 

51,450

132,200

a Qage-height record incomplete; discharge computed from gage heights estimated on basis of partial record, record for preceding and following days, and weather records, 

b Stage-discharge relation affected by ice.

£ -3SS February 1936

UNITED STATES DBPAPIHENT OP THB INTERIOR 

Oeolog al Surrey
LITTLE COLORADO RIVER BASIN 19 

Silver CreeV: near Woodruff, Arlz.

Location.- Water-stage recorder, lat. 34°44', long. 110°02', In sec. 32, T. 16 N., R. 23 

E., half a mile upstream from mouth and 3 miles south of Woodruff. Control for station Is crest of diversion dam 1,700 feet downstream.

Drainage area.- 942 square miles.

Records available.- April 1929 to October 1933, October 1935 to September 1940.

Extremes.- Maximum discharge during year, 11,000 second-feet July 26 (gage height, 12.37 

feet), by slope-area method; no flow on many days.

1929-40: Maximum discharge, 12,100 second-feet July 21, 1929 (gage height, 11.67 

feet), from rating curve In effect at time extended above 3,000 second-feet on basis 

of records for Little Colorado River near Woodruff; maximum gage height, that of July 

26, 1940; no flow during several days In spring and summer of each year.

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

which are poor. Diversions above station for Irrigation. Regulation by several 

reservoirs (combined capacity, about 27,000 acre-feet). Records show discharge over 

dam and do not Include flow In canal that diverts at dam. See table of miscellaneous 

discharge measurements for flow In canal.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

5

6 

7

9

10

11 

18 

13 

14 

15

16 

17 

18 

IS 

20

21 

22 

23 

84 

25

86 

27 

28 

29 

30 

31

Oct.

1 

1 

1 

1 

2

3 

3 

2 

2

3

4 

3 

3

2 

2

2

2 

2 

2

2 

3 

4 

4 

5

6 

7 

10 

10 

5 

4

HOT.

6 

5 

4 

4 

2

3 

3 

4 

5

7

5 

6 

10 

10 

9

7 

6 

6

7 

7

7 

6 

6 

4 

4

4 

3 

2 

25 

12

Dec.

6 

7 

6 

4 

4

*4 

4 

4 

4 

4

4 

3 

3 

3 

3

3 

3 

3 

3 

3

*3 

3 

3 

3 

5

b4 

b3 

a3 

a3 

a3 

a3

Jan.

a3 

a3 

a4 

*8 

10

9 

8 

9 

9 

9

8 

7 

7 

7 

6

6 

6 

6 

7 

*7

8 

8 

8 

B

1

7 

6 

5 

5 

5 

10

Feb.

11 

13

10 

9

7 

7 

8 

7 

7

7 

7 

7 

8 

10

9

^

7 

*7 

7

7 

8 

9 

9 

9

9 

9 

8 

6

Month

Oot 

HOT 

Deo

C

Jan 

Feb 

Mar 

Apr

Jun 

Jul 

Aug 

Sep

11

uary

11.....................................

ater year 1939-4

Peak discharge. -

 Winter discharge 

a Ho gage-height 

Colorado River near 

b Stage-discharge

0......................

Mar.

6 

7 

6 

6 

6

8 

9 

9

8

S

8 

6

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 

0 

0

0 

0 

0 

0 

0

0 

2 

7 

8 

8

S 

7 

3 

15

1

0 

0 

0 

0 

0

May

Second- ifa-n,,.,,. 

foot-days

103 10 

189 25 

114 7

3,167 336

216 10 

240 13 

88 9 

59 15 

0 0 

46 21 

3,454 2,750 

1,519 522 

1,861 306

7,889 2,750

June

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 

16 

5 

4 

21

July

4

1 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

323 

192 

11 

2

0

0 

0 

0 

0 

0

2,750 

110 

31 

14 

10 

6

Aug.

4 

2

1 

1 

0

0 

0 

0 

0

1

2 

2 

2 

2 

88

33 

11 

59 

155 

147

31 

15 

62 

127 

522

184 

29 

13 

10 

6 

5

Sept.

5 

5 

5 

4 

4

20 

13 

7 

3 

2

62 

306 

142 

19 

22

6 

14 

202 

94 

25

10 

10 

68 

193 

38

18 

112 

191 

184 

77

Min^M Mean *»£££

1 3.3 204 

2 6.3 375 

3 3.7 226

0 8.7 6,280

3 7.0 428 

6 8.3 476 

0 2.8 175 

0 2.0 117 

00 0 

0 1.5 91 

0 111 6,850 

0 49.0 3,010 

2 62.0 3,690

0 21.6 15,640

July 26 (1:30 a. a.) 11,000 sec. -ft.; Aug. 25 (3:20 p.m.) 1,610 sec. -ft. 

measurement made on -this day.

relation affected by ice.
300 LITTLE COLORADO RIVER BASIN

Puerco River at Gallup, N. Hex.

Location.- Water-stage recorder, lat. 35°32', long. 108°44', In SWiNWi sec. 15, T. 15 

N., R. 18 W., 1,500 feet upstream from Second Street bridge In Gallup. Datum of 

gage is 6,490.36 feet above mean sea level (general adjustment of 1929).

Drainage area.- 558 square miles.

Records available.- May to September 1940.

Extremes.- Maximum discharge during period, 3,500 second-feet Sept. 21 

feet), by velocity-area studies; no flow many days.

Remarks.- Records poor. Small diversions above station.

5age \ eight, 7.3

Discharge, in second-feet, water year October 1939 to September 1940

1-y

1

2

S

4

S

6

7

8

9:"*

:i" <>

! *

r*.' *

 «

:-Y

!'**

!'*

! ^

n

r«!"*

r*!'5

I 1 A

r?f «

r*^

n

Oct. HOT. Dec. Jan. Feb. t

Month

' -tober. ..................................

'^center . .................................

'vril.. ...................................

-»;::::::::::::::::::::::::::::::::::::::

'ng

r«p

The period. .............................

Har. Apr.

Secondfoot -days

""

-

0

125

243

445 

1,151

-

May

Ma-rlmm*

-

0

110

110

100 

300

-

June

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

110

15

July

0

0

0

0

0

0

0

0

0

0

0

4

0

10

2

10

2

30

1

0

0

0

0

0

0

0

70

110

3

0

0

Minimum

-

0

0

0

0 

0

-

Aug.

0

S

0

0

0

1

0

0

0

0

0

0

0

10

25

1

0

67

85

25

0

90

100

10

0

20

0

0

0

0

0

Mean

-

0

4.2

7.8

14.4 

38.4

-

Sept.

0

0

0

0

0

25

1

0

0

0

80

20

10

2

0

0

20

300

7

4

270

25

100

5

20

30

3

70

70

90

Run-off in 

acre-feet

~

0

348

480

883 

3,380

3,890

Peak discharge.- July 27 (12 p.m.) 1,450 Bee.-ft.; Sept. 11 

'3 a.m.] 1,150sec.-ft.> Sept. 21 (7.p.m.) 3,500 Bee.-ft.

6:45 p.m.) 1,380 see.-ft.; Sept. 18

February 1936

UNITED STATES DEPAPnT£ENT OP THE INTERIOR 

Oeolog. J. Surrey
LITTLE COLORADO RIVER BASIN 201

Puerco River near Adamana, Ariz.

Location.- Water-stage recorder, lat. 34°59', long. 109°48', in sec. 9, T. 18 N., R. 24 E. 

at highway bridge in Petrified Forest National Monument, three-quarters of a mile downstream from Dead River and li miles southeast of Adamana. Datum oi gage is 5,312.79 

feet above mean sea level (general adjustment of 1929).

Drainage area.- 2,760 square miles.

Records available.- March to September 1940.

Extremes.- Maximum discharge during period, 7,500 second-feet Aug. 23 (gage height, 5.9 

feet), from rating curve extended above 5,500 second-feet; no flow during greater part 

of period.

Remarks.- Records poor. Minor diversions, mostly by pumping, above station.

Discharge, In second-feet, water year October 1939 to September 1940

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

2S

29

30

31

Oct. lev.

-

Dec. Jan. Feb.

_

-

Honth

Maroh.....................................

Hay.. .................. .....

Jul 

Aug 

Bep

y...... ................................

1I8t........ ... ...

Water year 1939-4C

Mar. Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4

6

1

0

0

0

0

0

0

0

0

0

0

0

0

-

Seoondfcct-days

~

0

11

0

so

474 

5,991 

5,997

May

Ita^um

~

0

6

0

70 

120 

2,000

1,150

June

0

0

0

0

0

0

0

0

0

0

c

c

c

c

0

p0

0

0

0

0

0

0

0

0

0

0

0

10

70

-

July

50

20

3

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

60

60

40

0

100

120

20

0

Mlni^

~

0

0

0

0 

0 

0

0

Aug.

0

0

0

0

0

0

170

30

10

5

0

0

0

750

150

500

120

100

50

70

800

430

2,000

200

150

200

140

100

10

5

1

Mean

~

0

.4

0

2.7 

15.3 

193 

200

Sept.

0

250

60

20

5

25

30

20

10

5

2

150

500

400

200

10

20

SOO

400

70

40

250

350

700

60

20

20

30

400

1,150

-

Run-off in 

acre-feet

"

0

22

0

159 

940 

11,880 

11,890

24,890

Peak discharge.- Aug. 14 (S:45 p.m.) 7,000 sec.-ft.; Aug. 21 (9:45 p.m.) 5,200 sec.-ft.; Aug. 2 

(4:30 a.m.) 7,500 sec.-ft.; Sept. 30 (S:30 a.m.) 3,500 sec.-ft.; Sept. 30 (2p.m.) 2,SOO sec.-ft.

9-292 February 1936

UNITED STATES DBPAP^ItEHT OF THE IMTERIOR 

Oeolog. il Surrey
202 LITTLE COLORADO RIVER BASIN 

Chevelon Fork near WLnslow, Ariz.

Location.- Water-stage recorder, lat. 34°56', long. 110°31', In sec. 27, T. 18 N., 

K. 17 E., 3 miles upstream from mouth and 12 miles southeast of Winslow.

Drainage area.- 1,010 square miles.

Records available.- December 1905 to December 1908, December 1915 to December 1919, 

March 1929 to February 1934, September 1935 to September 1940.

Extremes.- Maximum discharge during year, 1,180 second-feet July 25 (gage heiglit, 7.01 

feet); minimum, 3 second-feet on many days.

1929-40: Maximum discharge, 16,100 second-feet April 4, 1929 (gage height, 17.8 

feet), from rating curve extended above 6,000 second-feet; minimum, about 1 secondfoot at times in each of several years.

Remarks.- Records good except those above 10 second-feet in November, July, August, and 

September, which are poor. No diversions above station. Chevelon canal (see list of 

miscellaneous discharge measurements at end of report) diverts below station and has 

maximum capacity of about 10 second-feet.

Discharge, In second-feet, water year October 1939 to September 1940

"~f

1

2 

3 

4 

5

6 

7

a

9 o

 1 

'2 

'3 

H 

-5

"6 

".7 

' 8 

'.9 

"0

"1 

"P. 

"3

~4 

X|>

"7 

"n

«"X>

,To 

n.

Oct.

4 

3 

3 

3

4

3 

3 

3

4

4

4 

4 

4 

4 

4

4 

4 

4 

4 

4

4

4 

4 

4 

4

3 

4 

4 

4 

4 

4

HOT.

4 

4 

4 

4 

4

4

4 

4 

4 

4

4 

4 

4 

4 

4

4 

4 

4 

4 

4

3 

3 

3

4 

5

4 

3 

3 

SO 

20

Dec.

8 

6

5 

4

4

4 

4 

4

4 

4

4 

4 

4 

4 

4

4 

4 

4 

4 

4

4 

4 

4 

4 

8

6 

4 

4 

4 

4 

4

Jan.

6

6 

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 

4 

4

Feb.

4 

28 

154 

178 

125

97 

90 

74 

64

55

44 

36 

30 

28

28

24 

23 

21 

19 

17

15 

15 

15 

14 

13

11 

44 

375 

370

Month

"'OK 

"x -0

C 

ran

r>b 

r>r 

j'^r

cTm 

.lul

f'« rip 

w

nary

11.....................................

ater yeari939-4C

Mar.

332

291 

247 

197 

158

118 

104 

112 

88 

98

115 

352 

201 

118 

84

64 

51 

46 

46 

44

43 

44 

52 

46 

39

33 

29 

25 

22 

18 

17

Apr.

22 

19 

16 

12 

11

128 

327 

332 

223 

154

108 

74 

52 

36 

24

19 

17 

13 

11 

8

7 

7 

14 

11 

9

6 

6

5 

5

5

Seoondf oo t -days

117 

208

13,092

128 

2,011 

3,234 

1,681 

134 

103 

319 

407 

218

8,697

May

5

5 

5 

5

5

4 

4

5 

5 

5

5 

4 

4 

4 

4

4 

4 

4 

4 

4

4 

4 

4 

5 

4

4 

4 

4 

4 

4 

4

Maximum

4 

80 

8

987

6 

375 

352 

332 

5 

4 

94 

160 

40

375

June

4 

4 

4 

4 

4

4 

4 

4 

4 

4

4 

4 

4 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3

3 

3

July

3

4 

4 

4 

4

4 

4 

4 

4 

4

4 

4 

4 

4 

4

8 

21 

4 

4

5

5 

5 

5 

5 

82

94 

6 

4 

4 

4 

4

Minimum

3 

3 

4

2

4 

4 

17 

5 

4 

3 

3 

3 

3

3

Auft.

4 

4 

4 

3 

3

3 

3 

3 

3 

3

3

3 

3 

3

51

24 

6 

4 

3 

3

3 

6 

160 

55 

25

6 

4 

3 

3

Mean

3.8

6.9

35.9

4.1 

69.3 

104 

56.0 

4.3 

3.4 

10.3 

13.1 

7.3

23.8

Sept.

3 

30 

40 

6 

4

4 

4 

4 

4 

4

3 

3

6

4 

3

3 

10 

30 

6 

5

4 

4 

4 

6 

4

4

4 

4 

5

Run-off in 

acre-feet

232 

413 

272

25,960

254 

3,990 

6,410 

3,330 

266 

204 

633 

807 

432

17,240

Peak discharge.- Feb. 29 (4 a.m.) 447 

(5 p.m.) 845 see.-ft.

2.-ft.; July 25 (10:30 p.m.) 1.18O see.-ft.; Aig. 23

.^ J February 1936

UNITED STATES DEPARTMFHT OP THE INTERIOR 

Geologies Surrey
LITTLE COLORADO RIVER BASIN 

Clear Creek near Wlnslow, Ariz.

203

Location.- Water-stage recorder, lat. 34°58', long. 110°38', In SEJ sec. 9, T. 18 N., 

R. 16 E., 1J miles upstream from mouth and 5 miles southeast of Wlnslow. Control 

for station Is crest of diversion dam 1,000 feet downstream.

Drainage area.- 607 square miles.

Records available.- March 1929 to February 1934, October 1935 to September 1940. June 

1906 to January 1909, at site 3 miles upstream.

Extremes.- Maximum discharge during year, 1,840 second-feet Aug. 15 (gage height, 6.85 

feet); no flow on many days.

1929-40: 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 5 second-feet, which are fair. Water diverted 

above station for municipal and Industrial supply. Records show discharge over dam 

and do not Include flow In canal that diverts at dam or leakage through dam (see 

table of miscellaneous discharge measurements at end of report for flow at mouth of 

creek, which Includes leakage).

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

IS 

13 

14 

15

16 

17 

18 

19 

SO

21 

22 

23 

24 

25

S6 

27 

28 

29 

50 

51

Oct. Hcv.

0 

0 

0 

0 

0

0 

.5 

.5 

.5 

.5

.5 

.5 

.5 

1 

1

.5 

.5 

.5 

.5 

.5

.5 

.5

.5

1 

1

.5 

.5 

.5 

2 

1

Dec.

1 

1 

1 

1 

1

1 

1 

2 

2 

2

2 

2 

3 

3

3

3 

3 

2 

2 

2

2 

2 

2 

2 

2

1 

1 

1 

1 

1 

1

Jan.

1 

1 

1

1 

1

1 

1

1 

1 

1

1 

1 

2 

2 

2

2 

2 

2 3' 

3

4 

4 

4 

4 

4

4 

4 

4 

4 

4 

4

Peb.

4 

4 

2 

22 

170

12S 

102 

72 

65 

50

34 

28 

26 

26 

26

18 

13 

16 

20 

15

10 

9 

8 

8 

7

5 

4 

209 

440

Month

Oct 

HOT 

Dec

C

Jan 

Peb 

Mar 

Apr 

Hay 

Jim 

Jul 

Aug 

Sep

W

alendar yeari93E

ater yearl939-4C

Mar.

396 

372 

323 

276 

240

184 

158 

156 

133 

144

170 

336 

331 

216 

144

123 

102 

87 

87 

87

97 

123 

13S 

144 

133

128 

112 

112 

107 

169 

123

Apr.

97 

SO 

72 

72 

60

170 

269 

323 

339 

300

261 

210 

158 

112 

63

68 

61 

47 

42 

42

68 

87 

72 

57 

47

47 

42 

32 

26

Seoondfoot-days

0 

16.0 

54

15,187.3

74 

1,543 

5,457 

3,400 

94 

0 

0 

417.0 

0

11,055.0

May

24

20 

16 

13 

9

7 

3 

2 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

b

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

2 

3

1,200

4 

440 

398 

339 

24 

0 

0 

307 

0

440

June J>ly

Minimum

0 

0

1

0

1

2

87 

26 

0 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

32

307

17 

36 

5 

.5

.5

.5 

0 

17 

1 

.5

0 

0 

0 

0 

0 

0

Mean

0 

.53 

1.7

41.6

2.4 

53.2 

176 

113 

3.0 

0 

0 

13.5 

0

30.2

Sept.

Run-off in 

acre-feet

0 

32

107

30,120

147 

3,060 

10,320 

6,740 

1S6 

0 

0 

827 

0

21,920

Peak discharge.- Mar. 12 (2 to 6 p.m.) 432 sec.-ft.; Aug. 15 (1 a.m.) 1,840 sec.-ft.

9-2SS 400453 O - 41 - 14

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeolot al Surrey
204 LITTLE COLORADO RIVER BASIN 

Salt Creek near Winslow, Ariz.

Location.- Staff gage, lat. 34°59', long. 110°39', in SWiSEi sec. 4, T. 18 N., R. 

16 E., half a mile downstream from county highway bridge, one mile upstream from 

mouth, and 4 miles southeast of Winslow.

Drainage area.- 287 square miles.

Records available.- October 1939 to September 1940.

Extremes.- Maximum discharge during year, 2,900 second-feet Aug. 14 or 15 (gage height, 

7.6 feet, from floodmarks), by computation of flow over dam; no flow during long 

periods.

Remarks^- Records fair except those above 100 second-feet, which are poor. Gage read 

twice daily or oftener. Small diversions above station for irrigation.

Cooperation.- Gage-height record collected in cooperation with the Arizona Game and 

r'isn Commission.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

T8

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct. HOT.

-

Dec. Jan. Feb.

_

-

Month

Oot 

Hon 

Dec

Jan 

Fob 

Mar 

Apr

Jun 

Jul 

Aug 

Sep

n.....................................

y. .....................................

Water yearl939-4C

liar. Apr.

-

Seoondfoot-days

0 

0 

0

0 

0 

0 

0 

25.1 

54.5 

1.5 

627.9

1,537.0

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

20

4

.6

.4

.1

0

0

0

0

Maximum

0 

0 

0

0 

0 

0 

0 

20 

34 

.9 

340

450

June

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

34

9

8

3

.5

-

July

0.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.9

.2

0

0

0

IHT^nnim

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

180

340

59

2

.2

8

3

.2

.1

16

12

5

2

.3

.1

0

0

0

Mean

0 

0 

0

0 

0 

0 

0 

.81 

1.82 

.05 

20.3

4.20

Sept.

0

.3

.1

0

0

0

0

0

0

0

48

110

15

2

.1

0

.1

12

3

3

53

450

93

7

1

.3

.1

0

25

5

-

Run-off in 

acre-feet

0 

0

0 

0 

0 

0 

50 

108 

3 

1,250

3,050

9-232 February 1936

UNITED STATES DEPAjmjEHT OF THE INTERIOR 

Qeolog. il Survey
LITTLE COLORADO RIVER BASIN 

Moenkopi Wash near Tuba, Ariz.

205

Location.- Water-stage recorder, lat. 36°06', long. 111°18'. In T. 31 N., R. 10 E., unsurveyed, on Navajo Indian Reservation, at highway bridge, 5 miles southwest of Tuba

and 17 miles upstream from mouth. 

Drainage area.- 2,270 square miles. 

Records available.- July 1926 to September 1940. 

Average discharge.- 14 years, 23.3 second-feet. 

Extremes.- Maximum discharge during year, 7,580 second-feet Sept. 30 (gage height, 8.7

leet), from rating curve extended above 3,000 second-feet on basis of velocity-area

studies; no flow for many days.

1926-40: Maximum discharge, 15,100 second-feet Aug. 4, 1929 (gage height, 15.4

feet), by slope-area method; no flow on several days In each year.

Revisions.- The figures of maximum discharge for the water years 1935 to 1939 have

been revised, as shown In the following table. They supersede those published In the

water-supply papers Indicated.

Water-Supply 

Paper

829.........

879... ......

Water 

year

1938-39

Date

Sept. 11

Gage height 

(feet)

9 0

 7 *^n

8.30

Discharge 

(second-feet

2

«20A

5 p<7n

6,890

Remarks.- Records good except those for period of ice effect, which are fair. Diversions

above station for Irrigation. 

Revisions.- Revised figures of discharge for high-water periods In the water years 1935

to j.939 are given herein. They supersede those published In Water-Supply Papers 789,

809, 829, 859, and 879.

Day 

(water year)

1934-S5 

Aug. 24.......

Sept. 1.......

1935-S6

3.......

1936-37

July 9.......

Discharge 

( second-feet )

277

686

Day 

(water year)

1936-37 

July 12.......

28....... 

29

1938-39

,12.......

Discharge ' 

(second- feet)

75f

28C

STC

32IT

708

Discharge, in second feet, water year, October 1939 to September 1940

D«y

1

2

S

4

5

6

7

S

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

SI

Oct.

0.1

.1

.1

.8

3.1

3.1

3.1

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

1.3

4.2

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.1

3.1

3.6

3.6

3.6

3.6

i.6

Nov.

4.2

4.2

4.2

4.2

4.9

4.9

4.2

4.2

4.9

6.4

6.4

5.6

4.9

4.2

4.2

4.2

4.2

3.6

3.6

3.6

3.6

3.6

3.6

3.6

5.6

5.6

4.9

4.9

4.9

4.9

-

Dee.

4.2

4.2

3.6

4.9

4.9

4.9

4.9

4.9

4.9

5.6

5.6

5.6

4.9

4.2

4.9

4.9

5.6

4.9

4.2

3.6

b3.7

b3.6

b2.7

b3.1

7.2

4.9

b.9

2.6

3.1

b2.6

4.9

Jan.

4.9

b5.6

7.2

5.6

6.4

5.6

1.5

2.6

7.2

4.9

4.9

3.6

4.9

b2.2

2.6

2.6

2.6

b2.6

b2.6

3.1

4.2

3.6

3.1

3.1

4.2

4.2

4.2

3.6

3.6

2.6

2.6

Feto.

3.1

11

14

7.2

5.6

3.6

3.1

4.2

3.6

3.1

4.9

5.6

5.6

4.2

5.6

4.9

4.2

4.2

4.9

4.2

.9

5.6

7.2

7.2

6.4

6.4

6.4

5.6

3.6

-

-

Mar.

3.1

3.1

3.1

3.1

3.1

2.6

.3

.6

1.5

2.2

.9

.3

.2

.1

.2

.2

1.3

4.9

4.2

4.9

4.2

3.1

.5

.2

.1

.2

.2

.3

.6

.6

.2

Apr.

0.2

.3

.1

.2

.2

.1

.1

.2

.2

.1

0

0

0

0

.2

.5

.3

.1

.1

0

0

0

0

9.1

3.2

.3

.2

.2

.1

.2

-

Hay

0

0

0

0

o

0

0

0

0

0

0

o

0

0

0

0

0

0

0

.1

.2

.1

.2

0

.2

.3

.1

0

0

0

0

June July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.4

.2

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

0

0

0

2.8

.3

.1

0

0

0

0

.1

0

34

20

18

2.6

161

317

S4

1,100

503

369

44

14

4.3

.8

.4

Sept.

0.4

137

177

139

18

7.1

3.4

1.5

.9

.4

2.1

2.7

6.4

630

658

48

647

750

135

19

8.7

5.3

1,170

94

20

10

5.8

456

819

2,590

-

Peak discharge.- Aug. 24 (10 p.m.) 2,900 sec.-ft.; Sept. 14 (3:15 a.m.) 4,330 sec.-ft.; Sept. 23 

(9:15 a.m.) 5,740 sec.-ft.; Sept. 28 (12 p.m.) 3,820 sec.-ft.; Sept. 30 (5:30 p.m.) 7,580 sec.-ft. 

b Stage-discharge relation affected by ice.

UNITED STATES DEPARTMENT OF THE INTERIOR
206 LITTLE COLORADO RIVER BASIN

Monthly discharge, In second-feet, of Moenkopl Wash near Tuba, Arlz., 1934-40

Month

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

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

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

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

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

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

Water year 1937-38 .....................

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

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

Secondfoot-days

170.9

5,760.9

14 2

836.4

210.9

4,263.8

181.0

12,505.6

6,180.5

11,577.1

164.3

11,836.3

1,110.2

4,311.0

160.2

3,690.6

Maximum

10

2,600

407

16

659

8 5

8.3

2,700

4,390

4,390

5X9

9.6

4,390

8

f\

862

862

13

862

Minimum

3.4

0

2

0

3.7

0

4.1

0

.1

0

3 8

1.8

0

0

0

.8

0

Mean

5.51

15.8

10 8

27.9

6.80

11.7

8

T e

5.84

3*. 2

2O3\.7

22 i

4

*0

5.30

3?.4

5 23

37.0

11.8

5.17

10.1

Run-off in 

acre-feet

339

11,420

289

1 n-t

1,660

418

8,460

359

24,810

12,260

22,970

25V

326

23.480

2,200

8,550

318

7,320

9-232a September 1937 UNITED STATES DEPARTMENT OF THE IHTERIOR 

Geolog] 1 Surrey
LITTLE COLORADO RIVER BASIN 

Monthly dlsoharge, In second-feet, of Moenkopl Wash near Tuba, Arlz., ] 934-40* Continued

207

Month

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

Water year 1939-40 .....................

Secondfoot-days

94.1 

136.0 

134.7

3,529.4

122.2 

156.1 

50.1 

16.2 

1.2 

0 

2.6 

2,675.4 

8,561.7

11,950.3

Maximum

4.2 

6.4 

7.2

1,570

7.2 

14 

4.9 

9.1 

.3 

0 

2.4 

1,100 

2,590

2,590

Minimum

0.1 

3.6 

.9

o'

1.5 

.9 

.1 

0 

0 

0 

0 

0 

.4

0

Mean

3.04 

4.53 

4.35

9.67

3.94 

5.38 

1.62 

.54 

.04 

0 

.08 

86.3 

285

32.7

Run-off in 

acre-feet

187 

270 

267

7,000

242 

310 

99 

32 

2.4 

0 

5.2 

5,310 

16,980

23,700
208 BRIGHT ANGEL CREEK BASIN

Bright Angel Creek near Grand Canyon, Ariz.

Location.- Staff gage, lat. 36°05'55", long. 112°05'38", an eighth of a mile upstream 

from mouth and 11 miles by trail from Grand Canyon Village, Coconino County. Datum 

of gage is 2,444.7 feet above mean sea leva! (preliminary adjustment of 19£9).

Drainage area.- 100 square miles.

Records available.- October 1923 to September 1940.

Average discharge.- 17 years, 38.3 second-feet.

Extremes.- Maximum discharge during year, 602 second-feet Aug. 24 (gage height, 3.30 

feet, from floodmark); minimum discharge observed, 17 second-feet Aug. 31.

1923-40: Maximum discharge, 4,400 second-feet Aug. 19, 1936, by slope-area 

method; minimum, 9 second-feet (regulated) June 29, 1934.

Remarks.- Records good. Gage read twice daily or oftener. Small diversions above station for Irrigation. Some fluctuation in flow caused by power plant 9 miles above 

station; no regulation by storage. During the year 79 discharge measurements were made.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

SO

to.

22 

23 

24 

25

26 

27 

28 

29 

90 

31

Oct.

34 

32 

34 

32 

31

29 

30 

29 

30 

28

27 

28 

29 

28 

28

28 

28 

26 

27 

27

26 

26 

27 

26 

26

26 

26 

26 

25 

25 

25

Hov.

25 

25 

25 

26 

25

25 

26 

25 

26 

26

26 

26 

25 

25 

26

26 

26 

26 

26 

26

26 

26 

25 

25

26

25 

25 

25 

25 

25

Dec.

25 

25 

25 

24 

24

24 

24 

24 

24 

25

24 

25 

24 

25 

24

24 

24 

25 

25 

25

25 

25 

25 

25 

25

25 

25 

24 

24 

24 

25

Jan.

25 

25 

25 

25 

26

26 

27 

29 

28 

27

29 

48 

33 

28 

27

26 

26 

26 

26 

26

26 

26 

26 

26 

26

26 

26 

26 

26 

26 

26

Feb.

28 

31 

32 

41 

36

30 

30 

30 

23 

28

28 

28 

29 

29 

30

30 

28 

27 

27 

28

28 

27 

28 

29 

29

73 

48 

40 

36

Month

Dot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr

JuB

Jul 

Aug 

Sep

V

nary ^ , f

ater year 1939-40

Mar.

37 

34 

33 

32 

31

31 

31 

31 

31 

33

34 

34 

33 

32

32

31 

33 

33 

38 

39

43

47 

55 

62 

76

82 

102 

118 

103 

93 

93

Apr.

125 

112 

102 

85 

79

77 

SO 

82 

88 

100

123 

140 

154 

179 

218

218 

170 

150 

157 

188

218 

230 

223

200 

200

202 

193 

157 

137 

129

Seoondfcot-daya

869 

765 

761

12,995

844 

936 

1,537 

4,516 

2,545 

973 

723 

681 

746

15,896

Hay

131 

131 

144 

146 

144

142 

123

110

102

98

95 

90 

85 

79 

76

74 

73 

69 

63 

59

57 

53 

51 

49 

46

46 

45 

44 

42 

39 

39

Mn^^pin]

34 

26 

25

127

48 

73 

118 

230 

146 

40 

26 

52 

62

230

June

38 

38 

37 

38 

39

40 

39 

38 

39 

37

34 

33 

31 

32 

30

31 

31 

30 

31 

28

28 

31 

28 

28 

27

28 

28 

28 

26 

27

July

26 

25 

26 

25 

24

24 

24 

26 

24 

24

24 

24 

23 

23 

24

25 

26 

26 

23 

23

22 

21 

20 

22 

21

22 

21 

21 

22 

21 

21

Minimum

25 

25 

24

19

25 

27 

31 

77 

39 

26 

20 

18 

18

18

Jug.

21 

21 

21 

21 

22

21 

21 

21

20 

20

22 

21 

23 

21 

21

21 

20 

21 

21 

21

27 

22 

22 

52 

26

21 

18 

18 

18 

18 

18

Mean

28.0 

25.5 

24.5

35.6

27.2 

32.3 

49.6 

151 

82.1 

32.4 

23.3 

22.0 

24.9

43.4

Sept.

18 

20 

20 

21 

19

20 

19 

20 

21 

21

22 

43 

24 

22 

21

24 

62 

30 

28 

28

25 

25 

25 

24

23

24 

24 

25 

24 

24

Run-off in 

acre-feet

1,720 

1,520 

1,510

25,780

1,670 

1,860 

3,050 

8,960 

5,050 

1,930 

1,430 

1,350 

1,480

31,530

 252 February 19S6

UNITED STATES DEPAJ>*1HENT OF THB INTERIOR 

Qeolog si Surrey
VIRGIN RIVER BASIN 209

Virgin River at Virgin, Utah

Location.- Chain gage, lat. 37°13', long. 113°11', in SEiSEi sec. 22, T. 41 S., R. 12 

W., at east edge of Virgin, 0.5 mile downstream from North Creek.

Drainage area.- 990 square miles.

Records available.- April 1909 to September 1926 (fragmentary) and October 1926 to 

September 1940.

Average dls charge.- 21 years (1910-14, 1915-16, 1917-18, 1923-24, 1926-40), 218 second-reet.

Extremes.- Maximum discharge observed during year, 4,370 second-feet Sept. 17 (gage 

height, 7.90 feet), from rating curve extended above 500 second-feet on basis of 

slope-area determinations at gage heights 8.05 and 10.7 feet; minimum observed, 

53 second-feet July 30.

1909-40: Maximum discharge, 13,500 second-feet Mar. 3, 1938 (gage height, 10.7 

feet, from floodmarks), by slope-area method; minimum discharge observed, 23 secondfeet Sept. 30, 1931.

Remarks.- Records poor. Gage read once daily. Diversions above station for irr-igaCooperatlon.- Fifty-four discharge measurements furnished by U. S. Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

81

83

24

25

26

87

88

89

30

31

Oct.

133

122

a!66

189

166

169

140

120

194

169

154

114

143

122

122

117

114

114

112

117

120

al!4

107

133

133

114

117

125

103

125

140

HOT.

128

128

131

114

117

117

107

alOO

92

107

109

101

103

107

112

122

120

131

112

125

114

109

105

105

105

a!08

112

120

133

143

-

Dec.

133

120

112

117

117

109

103

112

120

117

120

125

120

114

117

114

107

107

103

101

105

112

105

101

98

103

117

105

107

105

107

Jan.

112

109

128

133

125

125

a!42

158

239

268

246

1,410

122

136

162

151

147

143

128

114

a!24

133

143

151

147

117

169

154

158

220

282

Feb.

455

477

342

166

162

166

151

151

151

158

a!52

147

a!49

151

199

173

162

a!58 154'

189

a220

a250

275

189

169

gl.100

360

289

225

-

Month

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

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

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

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

Water year 1939-4

Mar.

204

183

183

183

189

194

194

199

215

204

183

158

162

154

162

178

 183

204

215

239

232

246

239

282

282

296

289

379

324

360

342

Apr.

282

342

305

268

268

239

275

282

246

305

379

399

a395

a390

388

399

314

314

388

388

360

388

324

421

399

379

379

324

289

268

-

Seoondfoot-days

4,128

3,437 

3,453

60,251

6,096

7,090 

7 057 10 \ 097

6,180

2,452

2,109

2 134 

8^054

62,287

Hay

260

275

239

260

a250

246

260

253

275

260

282

220

189

209

204

194

194

250

166

162

178

173

169

151

140

131

122

114

120

117

117

Maximum

194

143 

133

3,500

1,410

1,100

3V9

421

232

109

103

200 

1,500

1,500

June July

101 73

105 70

109 70

105 68

101 70

101 70

101 71

96 70

92 65

88 56

80 55

78 55

73 59

66 60

73 80

78 103

78 96

76 86

73 80

74 74

71 74

68 70

70 a65

76 60

66 62

76 60

70 59

68 60

71 60

68 53

55

Hininnm

103

98

53

109

147

154

239

114

66

CiZ

OO

55 

66

53

Aug.

56

59

55

59

62

74

70

60

58

59

56

58

55

76

71

59

56

55

a58

60

56

56

glOO

g200

114

86

a72

58

58

56

62

Mean

133

115

111

165

197

244

228

337

199

81 .7

68.0

268 -

170

Sept.

66

194

133

122

112

g700

gl.OOO

g800

239

178

14O

g250

g300

74

109

109

gl.500

g650

120

128

107

136

151

117

112

107

103

103

98

96

-

Run-off in 

acre-feet

6J820

6,850

119,510

14 1 060

14.OOO

20,030

12,260

4,860

4,180

4,230 

15,970

123,500

a. Ho gage-height record; discharge interpolated.

g Computed from graph baaed on one or more gage readings daily.

9-232 February 1936

UNITED STATES DEPAFTCENT OP THE INTERIOR 

Oeolog il Surrey
210 VIRGIN RIVER BASIN

Virgin River at Littlefield, Ariz.

Location.- Staff gage, lat. 36°53', long. 113°56', in SWi sec. 4, T. 40 N., R. 15 W., 

hair a mile downstream from Beaverdam Wash'and half a mile east of Littlef'eld. Prior 

to Nov. 8, 1939, at datum 0.53 foot higher.

Drainage area.- 4,400 square miles.

Records available.- October 1939 to September 1940.

Average discharge.- 11 years, 261 second-feet.

Extremes.- Maximum discharge observed during year, 12,800 second-feet Sept. 18 (gage 

height, 7.4 feet), from rating curve extended above 1,100 second-feet on basis of 

slope-area determination at 22,000 second-feet; minimum observed, 53 eecond-feet June 

15, 25-27, July 5, 6.

1929-40: Maximum discharge (revised), 22,000 second-feet Mar. 3, 1938 (gage height, 

10.3 feet, datura then in use, from floodmark), by slope-area method; minimum observed, 

23 second-feet Aug. 31, 1935 (published in error as 25 second-feet in Water-Supply 

Paper 879).

Remarks.- Records poor. Gage read once daily. A few second-feet of water diverted from 

Beaverdam Springs; no other diversion in Arizona, but several canals divert water 

above station In Utah. A few miles below station Bunkerville and Mesquite canals divert water for irrigation in Nevada.

Cooperation.- Two discharge measurements furnished by U. S. Bureau of Reclamation. 

Discharge, in second-feet, water year October 1939 to September 1940

^ay

1

S

3

4

S

6

7

S

9

11

12

13

14

IS

16

17

16

19

SO

21

22

23

24

25

26

27

28

29

SO

31

Oct.

184

218

357

204

211

184

156

146

173

181

156

156

151

151

143

131

129

123

116

114

101

103

108

110

106

103

106

110

110

106

99

 or.

103

110

106

92

88

103

101

a93

85

101

108

106

114

116

134

177

134

125

127

141

163

148

146

161

170

167

173

181

175

173

-

Dec.

164

164

167

167

153

159

167

167

148

170

156

146

139

148

136

141

148

146

161

153

161

141

148

173

175

167

164

169

178

188

184

Jan.

194

204

201

198

321

274

246

274

303

351

333

345

2,650

333

288

269

269

264

254

238

222

207

264

234

218

218

226

211

218

207

201

Feb.

222

909

730

1,190

922

385

357

327

258

250

293

230

222

234

250

204

218

211

218

204

201

207

230

g650

303

g4,500

g3,200

gl,600

1,260

_

-

Month

Calendar year 1939. .....................

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

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

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

Water year 1939-40..... .................

Mar.

81S

590

631

530

428

444

351

254

246

274

274

250

238

194

207

254

204

218

198

184

175

164

148

181

167

173

198

288

250

222

175

Apr.

254

S82

452

259

250

234

173

170

164

170

201

207

188

201

246

238

201

201

181

211

198

211

226

250

250

226

226

178

184

175

-

Seoondfoot-days

4,546

3,911

4,938

74,948

10,235

8,888

2,851

1,686

18,334

87,564

Hay

167

170

159

164

153

143

148

139

125

101

101

94

87

67

59

69

58

56

85

82

70

60

59

56

56

56

55

55

56

56

55

Ifa-Hniim!

357

181

188

5,000

2,650

818

882

170

59

56

4,600

4,600

June

55

56

56

58

59

56

58

55

55

55

54

54

54

54

53

54

54

54

56

55

54

55

55

54

53

53

53

54

54

54

-

July

55

54

54

54

53

53

54

54

54

54

54

54

54

54

54

54

54

54

65

55

54

55

65

55

55

55

65

55

65

55

56

Minimum

99

85

136

52

194

201

148

164

55

53

53

64

53

AT*.

56

56

56

56

58

58

56

56

56

56

56

56

56

58

58

58

58

58

58

59

59

59

60

58

gl,400

g300

74

60

56

56

59

Mean

147

130

169

205

330

688

287

240

92.0 54. e

54.4

611

239

Sept.

54

59

gl,900

gl.SOO

134

108

g2,400

g550

gl,200

g250

101

60

gl,200

gl , 800

g!20

60

153

g4,600

g600

169

125

80

169

134

148

127

108

112

345

188

-

Run-off in 

acre-feet

9,020

7,760

9,790

148,700

20,300

39,560

17,630

14,290

5,650

3,260

3,340

36,360

173,700

a No gage-height record; discharge Interpolated.

g Computed from graph based on one or more gage readings dally.

 *? February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeologl 1 Surrey
VIRGIN RIVER BASIN 211

North Fork of Virgin River near Springdale, Utah

Location.- Staff gage, lat. 37°12'35", long. 112 0 58 1 40 n , In SWiNWi 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.- 360 square miles.

Records available.- October 1932 to September 1940. June to November 1923 and April 1925 

to September 1932, at site a quarter of a mile upstream from Pine Creek.

Average discharge.- 14 years (1925-31, 1932-40), 100 second-feet.

Extremes.- Maximum discharge observed during year, 4,110 second-feet Sept. 7 (gage height, 

9.3 reet, from floodmarks), from rating curve extended above 300 second-feet on basis 

of slope-area determination at gage height 11.0 feet; minimum observed, 30 second-feet 

Aug. 11-13.

1925-40: Maximum discharge, 7,000 second-feet Mar. 3, 1938 (gage height, 11.0 

feet, from floodmarks), by slope-area method; minimum discharge observed, 24 secondfeet Dec.' 17, 31, 1928.

Remarks.- Records fair except those above 300 second-feet, which are poor. Gage read 

once daily. Records give combined flow of North Fork of Virgin F'ver and Springdale 

canal, which diverts In NWiNWi sec. 22, T. 41 S., R. 10 W., for irrigation in vicinity 

of Springdale.

Discharge, in second-feet, water year October 1939 to Septeml-r 1940

Day

1

S

3

4

5

6

7

8

9

10

11

IS

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

20

SO

31

Oct.

48

52

61

75

66

75

72

76

76

76

67

62

62

62

60

58

59

59

60

60

60

56

56

59

59

60

57

57

57

57

57

Nov.

56

56

54

54

a53

53

53

53

55

55

54

54

54

52

52

51

51

51

47

47

47

47

47

49

47

51

51

60

55

53

-

Dec.

49

49

51

51

51

53

53

51

51

51

51

51

45

51

45

45

47

49

49

47

47

45

a 43

a39

a37

34

31

40

40

42

42

Jan.

42

43

57

53

57

53

53

60

82

64

64

gl!5

g!30

52

44

46

46

46

46

44

44

44

44

50

52

52

52

54

54

54

61

Feb.

63

81

61

61

63

68

68

61

52

58

48

48

48

50

48

48

48

61

52

48

48

61

85

71

80

g404

g!30

89

83

_

-

Month

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

Calendar year 1939.... ..................

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

April ..................................... iu,.. .....................................

fiiij.. ....................................

Water year 1939-40. .....................

Mar.

73

61

61

d62

d65

d70

72

72

87

84

70

59

59

57

54

54

72

80

85

S7

96

104

112

118

146

149

g206

149

189

a!75

a!55

Apr.

a!35

149

128

131

112

126

116

116

164

139

149

153

149

258

233

184

168

168

168

168

234

207

211

289

314

234

211

198

193

198

-

Seoondfoot-days

1,921

1,562

1,430

27,786

1,758

2,186

2,983

5,403

3,607

1,562

1,248

1*150

4,657

29,467

May

197

1S4

184

184

180

167

159

148

138

133

133

131

115

109

10L

98

93

118

9L

91

87

85

85

82

80

78

75

73

71

69

68

Ifa-ri^. ,

76

60

53

1,400

130

404

206

314

197

77

60

74

1,000

1,000

June

68

77

75

62

61

57

59

57

55

55

53

53

51

51

49

49

52

50

47

47

45

43

43

43

45

45

45

43

43

45

-

July

48

45

45

45

43

41

41

42

39

41

39

39

39

39

39

60

46

42

42

40

41

37

39

37

35

35

35

37

35

33

33

lltiHimim

48

47

51

51

42

48

54

112

68

43

33

30

34

30

Aug.

33

33

33

33

35

37

35

35

32

32

30

30

30

37

34

34

34

34

34

34

41

39

58

74

55

39

37

36

34

34

34

Mean

62.0

52.1

46.1

76.1

56.7

75.4

96.2

180

116

52.1

40.3

37.1

155

80.5

Sept.

34

g!21

77

56

54

g600

gl,000

g400

g200

72

72

61

g!50

61

61

61

g700

g200

66

45

46

66

66

61

66

56

45

45

66

50

-

Run-off in 

acre-feet

3,810

3,100

2,840

56,120

3,490

4,340

5,920

10,720

7,150

3,100

2,480

2,280

9,240

58,470

a No gage-height record; discharge Interpolated.

d Doubtful gage-height record; discharge computed on basis of records for Virgin River at Virgin.

g Computed from graph based on one or more gage readings dally.

9-252 February 19S6

TOTTED STATES DF>4HTMEHT Of THE INTERIOR 

QeoL jlcal Survey
212 WILLIAMS RIVER BASIN 

Williams River near Alamo, Ariz.

Location.- Water-stage recorder, lat. 34°14', long. 113°35', In SWiNWi sec. 2, T. 10 N., 

R. 13 W., 1.5 miles downstream from Alamo and 6 miles downstream from confluence of 

Santa Maria and Big Sandy Rivers. Datum of gage Is 1,002.95 feet above me?n sea level 

(general adjustment of 1929).

Drainage area.- 4,730 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 2,700 second-feet Feb. 3 (gage height, 6.75 

reetj; minimum discharge observed, 4 second-feet on many days July to September.

Flood of Sept. 6, 1939, reached a stage of 39.6 feet, from floodmarks (discharge, 

77,000 second-feet, from slope-area measurement made just below confluence of Santa 

Maria and Big Sandy Rivers). Floodmarks Indicate a stags 6 feet higher at an earlier 

date (date and discharge not determined).

Remarks.- Records poor. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2 

3

4

5

6

7

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. HOT. Dec.

50

50 

64

52

40

44

40

40

38

38

42

40

36

34

34

38

38

36

38

38

t38

40

40

40

40

40

52

44

42

44

44

Jan.

t44

46 

44

42

48

44

69

t76

SI

76

120

160

160

120

100

90

80

70

60

60

50

50

50

50

50

40

40

40

40

t40

40

Feb.

60

500 

1,800

1,000

1,000

800

600

500

300

200

150

100

90

80

80

70

70

70

70

70

70

70

70

70

70

70

70

70

80

_

-

Month

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

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

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

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

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

The period. .............................

Mar.

100

90 

80

80

80

70

60

60

50

50

40

40

40

35

35

30

30

30

25

t25

25

25

25

25

20

20

20

20

20

20

25

Apr.

50

50 

150

100

80

75

60

t49

40

40

35

30

30

30

25

25

25

20

20

20

20

15

15

15

15

14

13

12

til

11

Seoondfoot-days

1,294

-

2,080

8,250

1,295

1,095

230

150

124

125

404

-

May

10

10

10

10

10

9

9

9

9

8

8

8

8

7

7

7

7

6

6

t6

6

6

6

6

6

6

6

6

6

6

6

Mmriimmi

64

_

160

1,800

100

150

10

5

4

5

150

-

June

 5

,

HHTi-Stinmi

5'

4C

6

2(

1]

I

.

i

i

i

July

\ '

t4

4

t4

4

4ug.

4

t4

4

5

4

Mean

I 41.7

.

) 67.1

) 284

) 41.8

L 36.5

> 7.4

> 5.0

L 4.0

I 4.0

I 13.5

Sept.

4

4

tv

4

4

4

4

4

4

4

40

15

10

5

4

4

15

150

50

20

10

6

t4

4

4

4

4

4

4

4

Run-off in 

acre-feet

2,570

-

4,130

16,360

2,570

2,170

456

298

246

248

801

29,850

tDischarge measurement.

Note.- No gage-height record Dec. 1-2, 23-26, and channel not connected to gage during low and 

medium'stages Feb. 4 to Sept- 30; discharge computed on basis of record of variations In groundwater level in gage well, 9 discharge measurements, field observation of flow Sept. 18, and records for station at Planet.

 232 February 1936

UNITED STATES DEP*»THENT OF THE INTERIOR 

Oeolo,. jal Survey
WILLIAMS RIVER BASIN 213

Williams River at Planet, Ariz.

Location.- Water-stage recorder, lat. 34°16', long. 113°59', in NEi sec. 36, T. 11 N., R. 

 17 W., 1 mile west of Planet and 6 miles upstream from upper end at Lake Havasu when

lake is at elevation of 450 feet above mean sea level. Datum of gage is 556.33 feet

above mean sea level (general adjustment of 1929).

Drainage area.- 5,140 square miles.

Records available.- January 1913 to December 1915, October 1910 to December 1912 (gage 

heights only), and October 1928 to September 1940.

Average discharge.- 12 years (1928-40), 147 second-feet.

Extremes.- Maximum discharge during year, 2,600 second-feet Feb. 3 (gage height, 5.13 

feet); minimum, 14 second-feet Dec. 28.

1928-40: Maximum discharge, 92,500 second^feet Feb. 7, 1937 (gage height, 13.1 

feet), from rating curve extended above 51,000 second-feet on basis of velocity-area 

study; minimum, 7 second-feet Sept. 30, Oct. 1, 1934.

Floods estimated as greater than 150,000 second-feet occurred about Feb. 21, 1891, 

and Jan. 20, 1916.

Remarks.- Records good except those during period of no gage-height record, which are 

fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

S3.

22

23

24

25

26

2V

28

29

30

31

Oct.

200

110

80

70

63

56

49

46

46

49

46

42

42

38

35

33

32

30

29

30

29

29

27

27

27

27

27

27

29

29

29

HOT.

27

25

25

25

25

25

25

25

25

24

24

25

25

25

22

22

24

24

25

27

27

27

25

24

22

22

22

22

22

24

-

Dec.

24

24

24

24

24

24

24

24

24

24

25

25

25

25

25

25

27

27

27

27

27

27

27

27

24

21

17

15

19

24

24

Jan.

24

25

27

27

27

25

25

22

19

19

17

21

35

94

49

60

46

38

32

30

29

29

29

27

27

27

27

29

29

29

32

Feb.

42

42

1,630

1,250

909

546

416

248

163

139

97

76

67

61

53

50

49

45

44

42

42

42

44

44

44

42

39

39

44

_

-

Month

Calendar year 1939. .....................

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

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

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

Water year 1939-4 0......................

liar.

53

55

49

49

45

42

39

39

37

35

35

33

33

34

33

23

28

29

29

31

29

28

28

27

27

27

27

25

25

24

24

Apr.

26

24

23

34

76

50

37

32

29

29

29

29

29

29

29

29

29

28

28

28

29

31

31

31

31

29

31

29

29

27

-

Secondfoot -days

1,433

731

750

117,615

976

6,349

1,047

945

739

672

637

612

617

15,508

May

27

26

26

25

25

25

24

24

25

25

25

2525

26

26

25

24

23

23

22

22

22

22

22

22

22

22

22

22

22

23

Mfl^Efaflum

200

27

27

31,500

94

1,630

55

76

27

24

21

25

54

1,630

June

23

23

23

24

24

24

23

23

23

22

22

22

22

22

22

22

22

22

22

22

22

20

22

22

22

22

22

22

22

22

-

July

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

20

20

20

20

20

20

20

20

20

20

20

20

20

20

MJrPJWl11?

27

£2

15

11

17

39

£4

£3

?2

?2

ro

16

17

15

Aug.

21

21

20

20

20

19

18

19

19

19

19

19

19

19

18

18

17

17

17

16

25

23

21

21

21

21

21

21

21

21

21

Mean

46.8

24.4

24. 2

322

31.5

219

33.8

31.5

23. S

22.4

20.5

19.7

20.6

42.4

Sept.

21

21

21

21

20

19

20

20

19

19

22

21

19

17

17

17

23

21

54

21

a20

a!9

al9

a!9

a!8

a!7

a!7

a!8

aid

19

-

Run-off In 

acre-feet

2,840

1,450

1,490

233,300

1,940

12,590

2,080

1,870

1,470

1,330

1,260

1,210

1,220

30,750

Peak discharge.- Jan. 14 (1 a.m.) Ill sec.-ft.J Feb. 3 {2:30 p.m.) 2,600 sec.-ft. 

a No gage-height record; discharge computed on basis of seepage record, »-eather records, and 

adjacent record.

9-2S2 February 1936

UNITED STATES DEPAPTIEHT OF THE INTERIOR 

Qeolog al Survey
214 WILLIAMS RIVER BASIN

Santa Maria River near Alamo, Arlz.

Location.- Water-stage recorder, lat. 34°18', long. 113°31', In NEiSWi sec. 9, T. 11 N., 

R. 12 W., half a mile upstream from confluence with Big Sandy River and Ei miles upstream from Alamo. Datum of gage is 1,126.6 feet above mean sea level (river profile 

survey).

Drainage L-area.- 1,520 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 262 second-feet Sept. 17 (gage height, 3.20 

feet); minimum, 1 second-foot on many days July to September.

Flood of Sept. 6 or 7, 1939, reached a stage of 10.0 feet, from floodnarks (discharge, 15,000 second-feet, by slope-area method). Floodmarks indicate that a stage 

2 feet higher occurred probably in 1937 or 1938 (discharge not determined).

Remarks.- Records fair. Several diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. HOT. Dec.

7 

*7

} 

> 

8 

«8

Jan.

8 

8 

9 

9 

10

10 

11 

11 

11 

11

11 

11 

10 

10 

10

10 

11 

10 

10 

11

11 

10 

10 

10 

10

9 

9 

8 

8 

8 

B

Peb.

9 

11 

159 

120 

80

55 

30 

24 

19 

11

10 

10 

10 

11 

11

14 

14 

12 

11 

10

11 

12 

17 

17 

14

12 

17 

17 

21

Month

Oot 

HOD 

Dec

C

Jan 

Peb 

Mar 

Apr

£2Jim 

Jul

£" 

Sep

T

alendar year

lie perio

Mar.

17 

14 

19 

19 

14

11 

11 

10 

10 

9

10 

8 

7 

8 

9

8

7 

7 

7 

8

8 

8 

8 

8 

8

8 

8 

8 

8

7 

7

Apr.

9 

7 

49 

47 

30

21 

17 

11 

9 

9

10 

8 

7 

8 

12

17 

14 

11 

11 

10

9 

8 

8

8 

7

7 

6 

6 

7 

6

Secondfoot -days

223

_

303 

769 

299 

389 

82 

60 

36 

31 

48

-

May

6 

5 

5 

5 

4

4 

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

Maximum

8

_

11 

159 

19 

49 

6 

2 

2 

1 

13

-

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

July

2 

2 

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 

1

Minimum

7

-

8 

9

7 

6 

2 

2

1 

1 

1

-

Aug.

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1 

1

Mean

7.2

-

9.8 

26.5 

9.6 

13-0 

2.6 

2.0 

1.2 

1.0 

1.6

-

Sept.

1 

1 

1 

1 

1

1 

1 

1 

1 

1

6

1 

1 

1 

1

1 

13 

2

1 

1

1 

1 

1 

1

1

1 

1 

1 

1 

1

Run-off in 

acre-feet

442

601 

1,530 

593 

772 

163 

119 

71 

61 

95

4,450

*Winter discharge measurement made on this day.

Note.- Discharge Dec. 1-29 computed on basis of 2 discharge measurements and field engineer's 

observations during construction of station.
WILLIAMS RIVER BASIN 215

Date Creek near Congress, Arlz.

Location.- Water-stage recorder, lat. 34° 12", long. 133°08'., In NWtSEi sec.. 13, T. 10 N.,

R. 9 w., 0.6 mile upstream from Sawyer'dam site, 17 miles west of Congress, and 25

miles upstream from mouth. 

Drainage area.- 127 square miles. 

Records available.- October 1939 to September 1940. 

Extremes.- Maximum discharge during year, 25 second-feet Sept. 3 (gage height, 3.50

reet); no flow during year except on Sept. 3. 

Remarks.- Record for Sept. 3 poor; computed on basis of gage-height record, gage height

of zero flow, and measured area and estimated mean velocity at peak of flow. Small

diversions above station for Irrigation.

Monthly discharge, water year October 1939 to September 194C 

Sept. 3..........1.0

Month

Water year 1939-40...

Mean 

(second-feet)

-.003

Run- off 

(acre-feet)

2.0

Note.- Ho flow during year except Sept. 3.
216 DIVERSIONS BETWEEN BOULDER DAM AND IMPERIAL DAM

Colorado River aqueduct near Parker Dam, Arlz.-Calif.

Location.- Venturl meters at Intake pumping plant of Metropolitan Water District of 

 Southern California, lat. 34°19', long. 114°09', In SWi sec. 28, T. 3 N., R. 27 E.,

San Bernardlno meridian, on Lake Havasu, 1.8 miles upstream from Parker Dam, which

is 156 miles downstream from Boulder Dam.

Records available.- January 1939 to September 1940.

Extremes.- Maximum dally diversion during year, 679 second-feet Mar. 4; no diversion 

during several periods.

1939-40: Maximum dally diversion, 692 second-feet Mar. 26, 1939; no diversion during several periods.

Remarks.- Records given herein are those of -flow diverted to Colorado River aqueduct, by 

pumping, from Lake Havasu on Colorado River. Figures represent diversion to Colorado 

River aqueduct, and Include evaporation losses and return flow to Colorado River by 

percolation, mostly from Gene and Copper Basin Reservoirs. Pumped water measured by 

venturl meters, Individually rated by salt-velocity method. Between Jen. 9 and Mar. 

13 some water was returned to Lake Havasu from Gene Reservoir and to Colorado River 

from Copper Basin Reservoir; records of return flow computed from freqrent gageheight readings on reservoirs for changes In their contents, and from record of openIng and closing of reservoir gates. Figures of monthly diversion have been adjusted 

for this return surface flow. Records are on basis of Pacific standard time.

Pumping first began Jan. 7, 1939. Water first flowed through San Jfclnto tunnel 

Nov. 1, 1939, and reached the terminal reservoir, Lake Mathews (formerly known as 

Cajalco Reservoir) on Nov. 2, 1939.

Cooperation.- Records furnished by Metropolitan Water District of Southerr California. 

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

6

6 

7 

8 

9 

10

11 

12 

13 

14 

16

16 

17 

18 

19 

20

21 

22 

23 

24 

26

26 

27 

28 

29 

30 

31

Oct.

0 

2SS 

441 

440 

440

424 

441 

437 

399 

0

0 

0 

0 

0 

0

266 

428 

339 

215 

218

65 

0 

149 

131 

170

221 

222 

202 

223 

1S4 

224

Nov.

224 

361 

439 

435 

429

423 

3S8 

421 

422 

421

423 

374 

420 

421 

507

651 

645 

222 

427 

649

650 

418 

223 

224 

288

291 

431 

387 

430 

401

Month

Oct< 

Now 

Dec(

Ca]

Jam 

Febi 

Mart 

Apri 

May 

June 

Julj 

Augi 

Sept

Wat

>mber . ..........

.endar year 1939

er year 1939-40

Dec.

277 

227 

435 

433 

360

0 

175 

221 

222 

222

222 

342 

212 

209 

SIS

45 

0 

18 

215 

213

214 

214 

214 

214 

213

136 

49 

248 

427 

415 

37

Jan.

0 

0 

0 

0 

0

143 

321 

150 

0 

0

412 

455 

459 

462 

463

464 

465 

466 

473 

477

373 

475 

474 

475 

474

475 

474 

476 

480 

473 

434

Second-foot 

days

6,567 

12,445 

6,641

86,974

10,293 

3,031 

11,619 

4,011 

5,338 

5,815 

6,785 

3,162 

6,420

82,127

Feb.

62 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

375 

478

478 

465 

450 

437 

253

33 

0 

0 

0

Mar.

0 

0 

7 

679 

669

657 

650 

642 

636 

619

647 

648 

648 

646 

613

0 

20 

607 

0 

2

660 

608 

0 

S3 

666

580 

0 

30 

639 

0 

24

Apr.

608 

0 

18 

666 

608

0 

20 

438 

424 

0

0 

0 

0 

21 

661

525 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

22

May

664 

603 

6 

207 

11

399 

0 

0 

13 

408

0 

7 

213 

198 

0

15 

436 

402 

0 

0

9 

221 

218 

205 

0

0 

0 

15 

449 

438 

201

Observed

Discharge in 

second-feet

Maximum

441 

651 

435

692

480 

478 

679 

666 

664 

434 

422 

425 

429

679

Minimum

0 

223 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Mean

212 

415 

214

238

' 332 

105 

375 

134 

172 

194 

219 

102 

214

224

Run-off

in 

acre-feet

13,030 

24,680 

13,170

172,500

20,420 

6,010 

23,050 

7,960 

10,590 

11,530 

13,460 

6,270 

12,730

162,900

June

0 

0 

14 

434 

214

0 

0 

0 

0 

10

431 

432 

425 

421 

299

210 

209 

205 

208 

208

195 

0 

13 

420 

401

213 

213 

213 

213 

214

July

214 

213 

216 

216 

205

0 

0 

13 

412 

408

414 

332 

205 

207 

205

206 

207 

208 

198 

0

7 

422 

418 

406 

207

207 

207 

208 

209 

208 

207

Return surface 

flow from 

Gene and 

Copper1 Basin 

Reservoirs 

in acre-feet

0 

0 

0

0

33,890 

7,780 

0 

0 

0 

0 

0 

0 

0

41,670

Aug.

208 

198 

0 

8 

425

422

417 

228 

204 

217

221

207 

208 

199 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sept.

0 

0 

0 

8 

423

424 

421 

429 

422

412

239

206 

196 

0 

13

412 

302 

208 

209 

209

209 

211 

208 

211 

209

211 

199 

0 

8 

423

Adjusted for 

return surface 

flow from 

Gene and 

Copper Basin 

Reservoirs 

in acre -feet

13,030 

24,680 

13,170

172,500

-13,470 

-1,770 

23,050 

7,960 

10,590 

11,530 

13,460 

6,270 

12,730

121,200

Note.- Contents in regulation reservoirs on Sept. 30, 1940: Lake Mathews, 73,670 acre-feet; Gene 

and Copper Basin Reservoirs (combined), 28,730 acre-feet.

9-237 September 1936

UNITED STA"" T DBPARTMENl 

Jeoi, i.cal E
DIVERSIONS BETWEEN BOULDER DAM AND IMPERIAL DAM * 

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

Location.- Pump house on left bank of Colorado River, lat. 34°09', long. 114°18', In 

see. 2, T. 9 N., R. 20 W., Gila and Salt River meridian, on Colorado River Indian 

Reservation, 1 mile southwest of Parker (revised) and 17 miles downstream from 

Parker Dam.

Records available.- January 1915 to December 1938 (calendar-year discharge), January 

1937 to September 1940 (monthly discharge).

Remarks.- Discharge computed from records of pump operation checked by current-meter 

ana Parshall-flume measurements. Water Is pumped to canals for Irrigation of lands 

In Colorado River Indian Reservation, which lies on east side of Colorado River and 

extends from Parker on the north to a point near Ehrenberg on the south.

Cooperation.- Records furnished by Office of Indian Affairs.

Monthly diversion, In a eoond-feet, water year October 1939 to 

September 1940

Month

Calendar year 1939" 

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

Water year 1939-40....

Maximum

S5

150

eo

154

155

Minimum

0

0

0

0

Mean

4.0

34.6

7.1

V3 0

49.4

Run-off In 

acre -feet

24S

159

25,030

436

'

35,640

Palo Verde canal near <Blythe, Calif.

Location.- Water-stage recorder, lat. 33°43', long. 114°31', in SWi sec. 19, T. 5 S., 

R. 24 E., San Bernardlno meridian, below settling basin, three-quarters of a mile 

downstream from intake on Colorado River and 9i miles northeast of Blythe.

Records available.- January 1922 to December 1923, January 1925 to September 1940.

Remarks.- Figures given herein are those of flow diverted from Colorado River less flow 

returned to river by canal wasteways and by drainage canal, and rspresent net 

diversion. Flow diverted from river computed on basis of gage heights and dally 

current-meter measurements; flow in canal wasteways and drainage canal computed on 

basis of occasional current-meter measurements.

Canal diverts water from right bank of Colorado River in NEi ssc. 19, T. 5 S., 

R. 24 E., San Bernardlno meridian, 10 miles northeast of Blythe, for irrigation of 

lands in Palo Verde Irrigation district in vicinity of Blythe and Rlpley, Riverside County, Calif.

Cooperation.- Records furnished by Palo Verde Irrigation District.

Monthly diversion. In acre-feet, water year October 1939 to 

September 194O

Month

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

Calendar year 1939. .

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

Water year 1939-40. .

Total 

diversion

13,500

253,520

321,600

Return flow 

to river from 

canal wasteways 

and drainage 

canal

7.26O

68,460

82,860

Net 

diversion

6,240

185,060

238,940

Note.- Return flow to the river through canal wasteways consists 

of excess water In the canals at lower end of project averaging 

about 20 sec-ft. Drainage canal flow consists of surfroe drainage from project and some underground seepage flow originating In 

canals. Irrigated areas, and river.
218 GILA RiyER BASIN

Gila River near Olla, N. Mex.

Location.- Water-stage recorder, lat. 33°04'05", long. 108°3S'10", In SEiSV'i sec. 19, 

T. 14 S., R. 16 W., at Hooker dam site, 1 mile upstream from Mogollon Creek and 

7 miles northeast of Glla . Datum of gage Is 4,655.8 feet above mean set. level 

(river-profile survey).

Drainage area.- 1,870 square miles (revised).

Records available.- April to December 1914 (at site 3 miles upstream and at out a quarter 

of a mile downstream from Turkey Creek) and October 1930 to September 1?40 In reports 

of Geological Survey. April to December 1914 and November 1937 to December 1938 (at 

site 3 miles upstream) and January 1939 to December 1931 In reports of State engineer.

Average discharge.- 13 years (1938-40), 136 second-feet.

Extremes.- Maximum discharge during year, 2,370 second-feet Oct. 8 (gage height, 7.73 

reet), from rating curve extended above 1,100 second-feet by logarithmic plotting; 

minimum dally, 34 second-feet July 13.

1930-40: Maximum discharge, 6,110 second-feet Keb. 16, 1937 (gage height, 10.13 

feet), from rating curve extended above 1,100 second-feet; minimum dally, 31 secondfeet June 23, 37, 1934, July 14, 1939.

Remarks.- Records good. One small diversion above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

81

22

23

24

25

26

27

28

29

30

31

Oct.

53

49

48

47

45

46

100

1,830

780

413

246

182

146

123

109

102

95

92

85

83

82

81

79

78

83

89

85

83

81

79

76

HOT.

76

72

74

74

75

75

78

75

82

94

82

78

78

78

78

78

75

75

75

75

74

74

74

75

78

74

71

70

98

101

-

Dec.

90

82

76

74

72

71

70

70

70

7O

68

70

67

67

66

66

66

66

66

65

63

65

67

66

83

83

75

68

63

63

66

Jan.

66

66

67

67

81

107

98

92

88

85

85

102

137

125

104

92

88

85

85

82

81

81

81

79

78

78

75

76

75

75

74

Feb.

82

1,470

1,020

594

428

335

279

240

215

186

170

159

153

144

141

139

132

127

122

117

112

125

777

780

558

520

544

549

536

-

Month

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

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

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

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

Water year 1939-4C) ......................

Mar.

500

46O

385

332

276

246

233

224

222

238

439

572

420

293

243

213

194

186

188

190

198

220

233

248

248

250

253

256

253

233

215

Apr.

202

202

192

182

174

184

172

159

14B

146

146

150

148

142

146

150

153

153

142

132

130

135

153

170

159

144

141

137

132

125

-

Secondfoot-days

5,570

2,336

2,174

36, 541

2,655

10,754

8,661

4,649

£» 86V

1,417

1,725

3,020

2,273

48,101

May

118

112

110

112

114

118

117

112

107

109

106

100

95

89

86

83

89

88

89

85

78

85

94

86

78

76

71

70

67

63

61

Mnyiflf^iTfl

1,830

101

90

1,830

137

1,470

572

202

118

96

115

222

209

1,830

June

58

57

54

51

49

47

46

44

42

40

38

38

38

38

38

37

39

38

37

36

38

42

50

57

58

49

48

48

66

96

July

95

67

55

49

46

67

49

44

39

37

36

34

35

35

36

42

38

41

47

115

92

55

47

47

45

63

57

57

79

88

88

mti"tmmn

45

70

63

21

66

82

186

125

61

36

34

47

44

34

Axig.

61

55

58

68

86

102

120

222

90

88

95

89

113

194

194

107

81

75

72

128

144

128

100

86

104

79

68

60

55

51

47

Mean

180

77.9

70.1

100

85.6

371

279

155

92.5

47.2

55.6

97.4

75.8

131

Sept.

49

49

47

45

44

2O9

110

83

72

67

71

162

104

81

72

62

60

60

60

55

51

88

79

68

66

61

61

61

63

113

Run-off in 

acre-feet

11,050

4,630

4,310

72,470

5.27O

21,330

17,180

9,220

5,690

2,810

3,420

5,990

4,51O

95,410

Peak discharge.- Oct. 8 (4 p.m.) 2,370 sec.-ft.; Feb. 2 (10 a.m.) 2,260 sec.-ft.; Feb. 23 (1 p.m.) 

1,230 sec.-rt.T Aug. 7 (12 p.m.) 755 sec.-ft.; Sept. 12 (1 a.m.) 603 sec.-ft.

9-232 February 1936

UNITED STATES DEPAP1TIENT OP THE IMTERIOR 

Oeolog al Surrey
GILA RIVER BASIN 219

Gila River near Red Rock, N. Hex.

Location.- Water-stage recorder, lat. 32°45', long. 108°40', in sec. 23, T. 18 S., R. 

 18 W., 4 miles northeast of Red Rock and 11 miles downstream from Mangus Creek.

Drainage area.- 2,860 square miles (revised).

Records available.- May 1908 to December 1914, October 1930 to September 1940 in

reports of Geological Survey. May 1908 to December 1931 in reports of State engineer.

Average dlscnarge.- 22 years (1909-10, 1912-14, 1918-24, 1927-40), 177 second-feet.

Extremes.- Maximum discharge during year, 15,300 second-feet Oct. 8 (gage height, 15.42 

feet), from rating curve extended above 4,700 second-feet by logarithmic plotting; 

minimum daily, 27 second-feet June 15, 16.

1930-40: Maximum discharge, that of Oct. 8, 1939; minimum daily, 6.0 second-feet 

July 12, 1939.

Remarks.- Records fair except those for periods of doubtful or no gage-height record, 

which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

81

22

23

24

25

26

27

28

29

90

31

Oct.

50

51

52

48

41

44

1,100

6,190

1,4SO

449

290

230

196

173

159

151

142

140

131

125

117

111

107

106

100

130

108

102

99

97

95

HOT.

97

9S

97

9S

96

96

94

94

99

104

101

97

96

94

93

94

94

96

92

92

91

93

96

9S

101

101

100

99

114

117

-

Dec.

115

110

108

105

102

100

99

99

9S

97

95

95

95

95

96

94

94

94

95

95

95

96

97

99

110

113

108

105

101

98

99

Jan.

99

101

104

104

111

135

137

131

130

124

121

125

142

153

141

133

12S

124

122

122

a!20

a!20

a!20

a!20

alSO

a!20

115

114

114

113

110

Feb.

115

3,890

,3,240

1,290

804

670

535

441

349

a330

298

263

244

234

223

217

206

196

186

180

173

175

1,130

1,460

719

575

570

590

622

_

-

Month

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

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

Kay.. .....................................

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

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

Water year 1939-'10....... ...............

Mar.

605

550

461

422

394

349

316

290

27S

262

362

726

610

457

390

35S

334

322

310

304

304

322

337

343

340

343

346

343

331

313

292

Apr.

290

278

263

aS40

a220

a220

aSlO

a200

alSO

162

a!60

alSO

153

156

145

153

164

154

158

153

150

13S

154

192

ISO

171

164

173

177

166

Seoondfoot-days

12,414

2,932

3,102

52,535.8

3,773

19,927

11,734

5,484

3,231

1,794

1,681

5,223

2,801

74,096

May

150

130

119

111

109

111

113

110

96

S7

93

94

105

97

93

93

107

106

115

113

106

109

116

113

111

10S

9S

95

S4

73

66

MAjdniuia

6,190

117

115

6,190

153

3,S90

726

290

150

257

116

596

171

6,190

June

64

59

53

49

44

41

3S

36

d33

31

a30

a29

a28

aSS

a27

a27

a28

a31

d33

36

39

257

134

100

93

8S

83

79

77

99

July

116

.105

8S

80

74

66

65

63

55

52

48

a45

a40

a40

a70

33

32

38

37

39

36

41

60

63

28

31

32

32

57

50

65

Minimum

41

91

94

6.C

99

115

27S

138

66

27

28

39

40

27

Aug.

69

188

135

101

139

133

214

361

197

167

171

171

206

583

596

d260

aSOO

a 150

alSO

allO

171

1S4

14S

113

94

121

d70

51

42

39

39

Mean

400

97.7

100

144

122

6S7

379

183

104

59.8

54.8

16S

93.4

202

Sept.

40

71

64

70

165

143

171

131

112

88

78

133

125

105

88

80

78

70

70

73

71

86

101

100

83

68

59

66

97

115

Run-off in 

acre-feet

24,620

5,820

6,150

104, 200

7,480

39,520

23,870

10,880

6,410

3,560

3,330

10,360

5,560

147,000

Peak discharge.- Oct. 7 (11 p.m.) 4,960 sec.-ft.j Oct. 8 (7 a.m.) 15,300 sec.-ft.; Feb. 2 (1 p.m.) 

7.93O sec.-ft.; Feb. 83 (4 p.m.) 2,750 sec.-ft.; June 22 (8 p.m.) 3,030 sec.-ft.; Aug. 15 (4 a.m.) 

2,880 sec.-ft.

a No gage-height record; discharge computed on basis of records for statiors near Glla and below 

Blue Creek.

d Doubtful gage-height record; discharge computed on basis of records for stations near Gila and 

below Blue Creek.

9-83S 400453 O - 41 - 15
220 OILA RIVER BASIN

Gila River below Blue Creek, near Virden, N. Hex.

Location.- Water-stage recorder, lat. 32°39', long. 108°51', in SEiSWi sec. 18, T. 19 S., 

R. 19 W.. at head of canyon, Just downstream from ranch formerly known as Fuller 

ranch, 1$ miles downstream from Blue Creek, 10 miles east of Virden, and 16 miles 

east of Duncan, Ariz. Datum of gage is 3,875 feet above mean sea level (f-om riverprofile map).

Drainage area.- 3,220 square miles (revised), excluding that of Animas Basin.

Records available.- June 1931 to September 1940. May 1914 to September 1915, at site 6 

- miles downstream, above intake of Sunset canal. January 1923 to September 1926, at 

site 8 miles downstream, below intake of Sunset canal. October 1926 to September 

1931, at Virden Bridge, 8| miles downstream.

Extremes.- Maximum discharge during year, 11,000 second-feet Sept. 6 (gage height, 15.88 

feet); minimum, 6 second-feet July 20.

1931-40: Maximum discharge, that of Sept. 6, 1940; minimum, 1 second-foot July 14, 

1934.

Remarks.- Records good. Diversions above and below station for irrigation. Station is 

above all diversions for Duncan Valley. During the year, 39 discharge measurements 

were made.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

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.

41 

44 

46 

46 

41

42 

1,300 

4,170 

1,500 

598

402 

308 

247 

209 

187

172 

161 

150 

144 

134

127 

120 

115 

113 

114

133 

115 

107 

102 

98 

96

HOT.

96 

96 

94 

96 

96

96 

96 

96 

102 

109

113 

111 

107 

107 

107

107 

107 

1Q4 

102 

96

94 

92 

96 

100 

102

100 

100 

100 

113 

125

Dee.

122 

115 

111 

109 

107

104 

102 

104 

102 

102

102 

100 

98 

100 

100

100 

98 

96 

94 

92

92 

92 

92 

92 

109

113 

113 

109 

104 

100 

102

Jan.

104 

104 

107 

109 

117

184 

178 

147 

142 

137

129 

125 

142 

158 

150

139 

132 

127 

125 

122

122 

122 

120 

117 

117

115 

111 

111 

109 

107 

107

Feb.

109 

2,330 

2,610 

982 

700

594 

493 

433 

3S8 

349

308 

284 

254 

236 

222

209 

196 

1S7 

175 

163

155 

152 

515 

1,260 

840

674 

659 

659 

654

Month

Oet 

HOT 

Dec

C

Jan 

Pet 

Max 

Apr £zJOB 

Ail 

Aug 

Sep

«

fuary* ....

y.... ..................................

ust....................................

ater year 1939-40......................

Mar.

633 

579 

517 

466 

421

375 

350 

331 

320 

320

358 

589 

584 

488 

434

395 

362 

339 

327 

316

312 

316 

339 

335 

331

327 

331 

331 

316 

305 

294

Apr.

290 

276 

260 

231 

212

212 

215 

206 

190 

174

156 

153 

146 

144 

142

137 

153 

158 

161 

142

135 

127 

124 

179 

181

168 

149 

146 

153 

146

Seeondfoot-days

11,182 

3,060 

3,176

47,368

3,936 

16,790 

12,041 

5,266 

2,874 

1,381 

1,222 

4,219 

3,467

68,614

May

131 

118 

105 

98 

90

87 

88 

90 

88 

76

71 

74 

76 

86 

84

81 

90 

101 

109 

103

100 

105 

116 

114 

112

107 

96 

82 

74 

65 

57

Maximum

4,170 

125 

122

4,170

184 

2,610 

633 

290 

131 

270 

113 

445 

1,120

4,170

June

56 

53 

47 

44 

36

29 

27 

24 

24 

21

20 

19 

16 

16 

15

13 

12 

12 

10 

10

14 

47 

270 

110 

81

84 

78 

67 

61 

65

July

73 

86 

74 

62 

58

52 

45 

42 

32 

26

19 

17 

14 

14 

55

14 

12 

10 

9 

8

17 

16 

16 

50 

43

31 

27 

31 

113 

81 

75

Mlnlnum

41 

92 

92

2

104 

109 

294 

124 

57 

10 

8 

28 

39

8

Aug.

7S 

84 

150 

100 

121

106 

116 

335 

177 

109

103 

163 

129 

432 

445

267 

15S 

116 

105 

92

114 

137 

118 

81 

73

76 

71 

57 

44 

34 

28

Mean

361 

102 

102

130

127 

579 

388 

176 

92.7 

46.0 

39.4 

136 

116

187

Sept.

78 

48 

42 

39 

121

1,120 

152 

122 

105 

90

74 

82 

117 

103 

87

82 

72 

64 

66 

68

62 

86 

80 

84 

70

59 

53 

51 

64 

126

Run-off in 

acre-feet

22, 180 

6,070 

6,300

93,960

7,810 

33, 300 

23,880 

10,440 

5,700 

2,740 

2,420. 

8,370 

6,880

136,100

??a^,<^S£b*rBe< - Oot - 7 '6:45 p.m.l 4,850 sac. -ft.. { o«t.. 7 (iisfiO p.m.) 10,000 ffec.-ft.t Oct. B

K.-232 February 1936

UNITED SKATES DEPAPTCEHT OF TEE INTERIOR 

Oeolog il Surrey
GILA RIVER BASIN 221

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

(Formerly published as Gila River at New Mexico-Arizona State line, near Duncan, Ariz.)

Location.- Water-stage recorder, lat. 32°41', long. 109°03', in NEiNEi sec. 3, T. 9 S., 

RT~32~E., Gila and Salt River meridian (NWiNEi sec. 6, T. 19 S., R. 21 W., New 

Mexico meridian projected west of State line), about 790 feet downstream from State 

line, 3 miles west of Virden, and 4 miles southeast of Duncan, Ariz.

Drainage area.- 3,360 square miles.

Records available.- May 1939 to September 1940.

Extremes.- Maximum discharge during year, 7,700 second-feet Oct. 7, from rating curve 

extended above 1,740 second-feet by logarithmic plotting; maximum gage height, 7.47 

feet Sept. 6; minimum dally discharge, 2.3 second-feet Aug. 31.

1939-40: Maximum discharge, that of Oct. 7, 1939; no flow July 8, 10-14, 16, 

1939.

Remarks.- Records good except those for Oct. 7-9, Feb. 3, June 23, Aug. 3, 8, 14, 15, 

sept. '6, 7, which are fair. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to Septemt«r 1940

Day

1

%

3

4

S

6

7

8

9

10

11

18

IS

14

IS

16

17

18

19

20

21

28

83

934

85

86

27

28

29

30

SI

Oct.

2.7

3.3

3.9

3.9

3.9

4.S

1,040

5,620

2,430

776

466

327

266

220

196

173

147

127

119

102

83

86

89

70

70

83

89

102

123

119

99

Bov.

86

89

86

S3

80

7S

68

58

58

56

58

63

73

63

56

52

52

58

54

50

41

45

47

 0

63

60

63

58

66

76

-

Dec.

80

78

73

70

73

78

89

93

89

93

102

109

102

93

S9

86

78

80

76

76

76

66

63

73

112

115

93

68

58

52

52

Jan.

96

S9

89

99

99

127

135

123

123

119

112

112

119

135

151

147

135

112

115

112

115

115

119

123

123

123

105

105

96

89

99

Feb.

102

1,420

2,970

1,300

902

769

632

540

46S

3S4

322

283

256

240

215

200

191

178

164

143

139

160

363

1,380

1,000

769

750

730

717

_

-

Month

Haroh .....................................

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

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

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

Water year 1939-40. .....................

Mar.

691

632

570

504

466

408

372

354

327

327

327

534

678

576

498

426

372

322

261

240

225

235

300

327

300

283

272

272

266

261

250

Apr.

240

230

230

200

155

143

147

147

127

112

89

86

96

86

80

70

70

68

66

6S

63

86

93

109

123

123

115

102

93

86

-

Seoondfoot-days

13,024. 5

1,900

2,535

-

3,561

17,687

11,866

3,503

1,372

574.1

507.6

2,539.9

2,630.6

61,700.7

May

SO

70

56

52

52

48

54

56

47

38

26

25

32

28

29

22

20

28

41

50

45

54

6S

63

73

7S

63

26

20

15

13

Mn^jpnp

5,620

89

115

-

151

2,970

691

240

SO

155

89

418

1,400

5,620

June

11

11

11

11

9.6

S.2

7.0

6.6

7.0

7.4

6.6

5.8

5.8

6.6

5.4

5.8

5.S

4.7

4.7

4.7

7.8

6.6

155

68

25

32

66 -36-

24

18

-

July

23

29

33

24

15

11

8.6

8.2

7.0

6.6

5.8

5.0

4.7

4.5

27

18

4.7

4.5

4.2

6.6

4.2

3.4

3.7

4.7

9.6

6.6

22

16

70

89

28

MirluTOi

2.7

41

52

-

89

102

225

63

13

4.7

3.4

2.?

5.4

2.?

Aug.

23

49

149

70

73

63

31

234

115

39

96

86

66

359

418

168

93

63

41

2S

21

35

69

57

30

33

23

8.2

a5

2.4

2.3

Mean

420

63.3

Sl.S

-

115

610

383

117

44.3

19.1

16.4

SI. 9

S7.7

169

Sept.

18

9.6

5.4

5.4

6.2

1,400

160

112

80

58

31

49

69

47

33

25

17

18

15

20

33

39

41

50

39

26

21

23

32

148

-

Run-off In 

aore-feet

25,830

3,770

5,030

-

7,060

35,080

23,540

6,950

2,720

1,140

1,010

5,040

5,220

122,400

Peak discharge.- Oct. 7 (11:30 p.m.) 7,700 sec.-ft.j Oct. 8 (6:40 a.m.) 7,090 sec.-ft.; Oct. 8 

(10:30 p.m.) 6,900 sec.-ft.; Sept. 6 (7 a.m.) 6,540 sec.-ft. 

a Nc gage-height record; discharge Interpolated.

9-8S8 February 19S6

UHITED STATES DEPAWTMEHT OF THB IMTERIOR 

Qeolog. al Surrey
222 GILA RIVER BASIN 

Diversions from Glla River In Duncan Valley, N. Mex.-Arlz.

Duncan Valley lies along Glla River In Greenlee County, Ariz,, and Hidalgo County, 

N. Hex. The part In New Mexico Is also known as Vlrden Valley. The valley extends 

from a point in New Mexico about 8 miles east or the State line westward to the 

vicinity of Guthrle, Ariz. Ten canals, listed In the following tables according to their 

position from east to west, and six 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 the eastern end of the valley, is 4 miles downstream from 

the station on Glla River below Blue Creek, near Virden, N. Mex.; the Intake of York 

canal, at the western end, is about 5 miles upstream from the station on Glla River near 

Clifton, Ariz.

Records of dally and monthly diversions are available for Sunset and Moddle canals 

for 1914-15 and 1922-31; for Valley and Colmonero canals for 1914-15 and 1923-31; and 

for Duncan canal for 1923-28. Discharge measurements are available for York canal for 

1914-15 and 1923-31.

Records of dally diversion since January 1936, except for Sunset, Moddle, and Shrlver 

canals for 1939-40, have been collected by Gila Water Commissioner, appointed by United 

States District Court for Arizona. Water-stage recorders and rectangular sharp-crested 

weirs were used by the water commissioner to obtain records of diversion by the canals, 

and rated pumps were used to obtain records of pumped water. See pp. 235-240 for 

records of Sunset, Moddle, and Shriver canals for 1940.

The following tabulations of the annual diversions by each canal and the combined 

monthly diversions by the canals as a group have been compiled and furnished by the 

Glla Water Commissioner.

Annual diversions, In acre-feet, from Glla River by canals and 

pumps In Duncan Valley, N. Mex.-Arlz.

Canal

Total diversions. . ...............

Water year 

1939-40

509

74

40.040

Calendar 

year 1939

100

35.600

Combined monthly diversion, In second-feet, from Glla River by 

canals and pumps In Duncan Valley, N. Mex.-Arlz., during water 

year October 1939 to September 1940.

Month

Calendar year 1939.....

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

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

Water year 1939-40.....

Maximum

132

112

93 5

99.2

134

Minimum

0

28.9

0

Mean

49.1

92 4

42 2

64.7

55.3

Run-off In 

acre-feet

35,600

3,850

40,040
GILA RIVER BASIN 

Glla River near Clifton, Arlz.

223

Location.- Water-stage recorder, lat. 320 58', long. 109°18', in SEi sec. 25, T. 5 S., R. 

29 E., at highway bridge, 7 miles south or Clifton and 5 miles upstream from San Francisco River. Datum of gage is 3,335.3 feet above mean sea level (subject to correction 

for general adjustment of 1929).

Drainage area.- 4,040 square miles.

Records available.- March 1928 to October 1933, May 1935 to September 1940. November 1910 

to July 1918, at site 4 miles upstream, published as Glla River at Guthrie, Arlz.

Average discharge.- 10 years (1928-33, 1935-40), 165 second-feet.

Extremes.- Maximum discharge during year, 6,300 second-feet Oct. 8 (grge height, 12.05 

feetj; minimum, 18 second-feet June 18.

1928-40: Maximum discharge, about 11,500 second-feet Aug. 26, 1934 (gage height, 

16.0 feet, from floodmarks), from rating curve extended above 6,000 second-feet; minimum not determined, probably occurred in 1934; minimum recorded, 9 second-feet July 8, 

1939.

Remarks.- Records good except those for periods of no gage-height record or wholly or 

partly estimated gage-height record, which are fair. Diversions for Irrigation above 

station, which is below all diversions from Gila River above San Francisco River. During the year 52 discharge measurements were made.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

5

6 

7

a

9 

10

11

18 

13 

14 

15

16 

17 

18 

19 

20

21 

82 

23 

84 

85

86 

27 

88 

29 

30 

31

Oct.

24 

25 

24 

24 

23

23 

590 

4,510 

2,580 

908

422 

C300 

C245 

C200 

186

151 

125 

106 

95 

90

77 

65 

65 

65 

65

65 

68 

69 

75 

84 

77

Hoy.

69 

66 

70 

70 

73

77 

75 

69 

65 

63

64 

69 

74 

75 

70

68 

63 

57 

64 

69

64 

64 

60 

64 

77

82 

82 

86 

104 

103

Dec.

118 

120 

111 

106 

104

106 

103 

10} 

95 

86

80 

87 

84 

84 

80

81 

81 

80 

77 

77

72 

69 

65 

66 

82

109 

104 

99 

84 

75 

70

Jan.

78 

104 

104 

103 

103

106 

133 

139 

123 

122

118 

114 

114 

120 

141

139 

133 

123 

120 

120

120 

122 

120 

120 

122

120 

120 

116 

114 

114 

111

Feb.

120 

746 

2,900 

1,370 

804

610 

509 

436 

401

357

315 

288 

273 

248 

234

223 

206 

191 

181 

165

154 

149 

180 

899 

885

702 

632 

610 

589

Month

Dot 

HOT 

Dec

C

Jan 

Feti 

Mar 

Apr 

May 

Jin 

Jul 

Aug 

Bep

H

nary

ust ..................... ,. , .

ater year 1939-4

Peak dia charge. -

3,150 sec. -ft.; Sept

Mar.

568 

528 

490 

440 

391

354 

312 

270 

237 

226

229 

288 

548 

509 

440

387 

328 

282 

242 

223

206 

203 

216 

323 

312

279 

282 

273 

262 

265 

248

Apr.

242 

234 

223 

213 

138

154 

137 

149 

147 

129

111 

92 

90 

95 

90

92 

87 

84 

80 

77

78 

73 

82 

93 

103

106 

111 

107 

99 

88

Secondfoot-days

11,426

2,156 

2,756

44,028

3,656 

15,377 

10,161 

3,654 

1,475 

1,217 

1,656 

4,522 

3,788

61,844

May

81 

77 

72 

65 

a55

a50 

a50 

47 

49 

42

37 

32 

29 

29 

29

29 

28 

28 

29 

37

43 

47 

54 

63

65

69 

70 

63 

44 

33 

29

MaxHnu*

4,510 

104 

120

4,510

141 

2,900 

568 

242 

81 

201 

401 

370 

1,160

4,5fO

June

26 

a26 

a25 

a24 

a24

a23 

23 

22 

21 

21

21 

21 

21 

20 

20

20 

20 

19 

20 

20

20 

44 

201 

190 

61

51 

64 

49 

a52 

a48

July

a45 

a40 

a3S 

a35 

33

29 

25 

25 

25 

26

26 

26 

27 

28

34 

29 

26 

26 

26

45 

28 

25 

175 

a50

a35 

a25 

72 

113 

401 

C85

Aug.

c70 

C230 

322 

243 

210

99 

77 

112 

200 

C100

C270 

c370 

C270 

C330 

C310

C280 

C130 

cllO 

86 

70

64 

57 

72 

80 

68

95 

48 

44 

a40 

a35 

a30

Minimum Mean

23 369 

57 71.9

65 88.9

11 121

78 118 

120 530 

203 328 

73 122, 

2E 47.6 

19 40.6 

25 53.4 

3C 146 

25 126

IS 169

Sept.

38 

a30 

a30 

a25 

175

1,160 

, 230 

C120 

c95 

80

a70 

a 60 

a55 

aSO 

a45

a40 

39 

40 

58 

35

308 

306 

80 

73 

74

65 

53 

49 

79 

226

Run-off in 

acre-feet

22,660 

4,280 

5,470

87,330

7,250 

30,500 

20,150 

7,250 

2,930 

2,410 

3,280 

8,970 

7,510

122,700

Oct. 8 (6 a.m.) 6,300 aec.-ft.; Oct. 9 (7:30 a.m.) 3,840 aec.-ft.; Feb. 3 (7a.m. 

. 6 (2:30 p.m.) 2,920 aec.-ft.

Ho gage-height record; discharge computed on baala of field estimates, weather records, and 

recorda for Blue Creek near Vlrden, N. Hex., Bonlta Creek near Solomonairllle, and San Franciaco 

River at Clifton.

c Computed on baala of gage-height record wholly or partly estimated and of recorda for stations 

named above.
224 GIIA RIVER BASIN 

SIla River below Bonita Creek, near Solomonsville, Ariz.

Location.- Water-stage recorder, lat. 32°53', long. 109°30', in SEi sec. 21, T. 6 S., R. 

28 E., unsurveyed, three-eighths of a mile downstream from Bonita Creek and 10 miles 

northeast of Solomonsville.

Drainage area.- 7,900 square miles.

Records available.- February 1932 to October 1933, May 1935 to September 1940. April 1914 

to September 1932, at site 3 miles downstream and below intake of Brown canal, published 

as Sila River near Solomonsville, Ariz.

Average discharge.- 17 years (1921-33, 1935-40), 379 second-feet (includes d'version in 

Brown canal during period 1921-32).

Extremes.- Maximum discharge during year, 9,840 second-feet Sept. 6 (gage height, 15.24 

feet); minimum, 34 second-feet June 18.

1914-40: Maximum discharge, about 100,000 second-feet Jan. 19, 1916, by slope-area 

method; minimum not determined, probably occurred in 1934; minimum recordsd, 27 secondfeet July 14, 1939.

Remarks.- Records good. Diversions for irrigation above station, which is a*)ove all diversions for irrigation in Safford Valley. During the year 52 discharge measurements 

were made.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7

a

9 

10

11

12 

13 

14 

IS

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

23 

29 

30 

51

Oct.

75 

75 

70 

68 

68

68 

478 

5,250 

3,240 

1,100

500 

400 

350 

274 

249

225 

204 

187 

168 

161

151 

135 

135 

138 

138

151 

138 

138 

138 

144 

144

HOT.

138 

131 

131 

131 

131

135 

135 

131 

131 

138

138 

138 

135 

138 

138

135 

135 

128 

128 

131

135 

131 

125 

138 

157

161 

161 

161 

187 

204

Dee.

195 

195 

184 

180 

172

165 

168 

168 

165 

161

151 

154 

157 

157 

157

157 

154 

151 

151 

151

151 

151 

151 

154

184

229 

221 

204 

195 

176 

165

Jan.

157 

172 

180 

180 

184

231 

257 

257 

234 

221

212 

208 

199 

204 

216

229 

225 

212 

204 

199

204 

204 

199 

199 

199

195 

191 

187 

187 

187 

184

Feb.

195 

1,880 

4,360 

2,330 

1,300

944 

829 

686 

610 

527

483 

441 

411 

393 

379

364 

340 

323 

309 

290

274 

271 

326 

1,020 

1,260

968 

897 

874 

852

Month

Oot 

Hov 

Dec

C

Jan 

Fob 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

3ep

«

uapy t e t

U.. ...................................

ater year 1939-4

Mar.

852 

829 

762 

674 

610

56S 

515 

475 

444 

422

452 

511 

784 

784 

674

568 

503 

460 

430 

404

386 

379 

389 

471 

471

456 

452 

452 

444 

437 

418

Apr.

397 

393 

379 

364 

333

300 

277 

277 

277 

255

237 

216 

201 

207 

198

193 

190 

190 

181 

170

167 

156 

223 

213 

216

216 

207 

207 

201 

196

Seeondfoot-days

14,760 

4,236 

5,274

86, 814

6,317 

24,136 

16,476 

7,237 

3,728 

3,527 

4,123 

15-,490 

 11,165

116,469

May

187 

17C 

153 

148 

134

129 

124 

116 

116 

111

108 

101 

96 

91 

93

93 

93 

93 

98 

103

111 

124 

145 

151 

137

137 

134 

129 

113 

101 

89

Ma^

5,250 

204 

229

5,250

257 

4,360 

852 

397 

187 

657 

477 

2,030 

3,370

5,250

June

86 

77 

77 

75 

66

61 

57 

55 

49 

47

45 

43 

43 

43 

45

47 

39 

51 

45 

47

49 

61 

280 

657 

268

164 

129 

145 

269 

407

July

196 

a!50 

a!30 

allO 

a90

79 

68 

57 

53 

55

55 

59 

57 

55 

54

184 

86 

68 

57 

47

53 

76 

49 

120 

202

364 

335 

253 

255 

477 

229

Mliyliwm

68 

125 

151

28

157 

195 

379 

156 

89 

39 

47 

137 

121

39

Aug.

200 

375 

650 

575 

542

309 

255 

234 

287 

222

198 

631 

376 

2,030 

2,010

1,360 

632 

478 

316 

580

364 

290 

296 

462 

513

375 

265 

207 

173 

148 

137

Mean

476 

141 

170

238

204 

832 

531 

241 

120 

118 

133 

500 

372

318

Sept.

347 

178 

159 

134 

129

3,370 

1,220 

456 

319 

262

213 

178 

140 

191 

213

167 

129 

129 

162 

121

196 

607 

349 

260 

245

196 

162 

151 

188 

594

Run-off In 

acre-feet

29,280 

8,400 

10,460

172,200

12,530 

47,870 

32,680 

14,350 

7,390 

7,000 

8,180 

30;720 

22,150

231,000

Peak discharge.- Oct. 8 (8s30 a.m.) 8,070 aec.-ft.; Oct. 9 (11 a.m.) 4,360 aeo.-ft.; Feb. 3 (8 

a.m. ) 4,930 aec.-ft.; Aug. 14 (10:30 a.m.) 3,820 aeo.-ft.; Aug. 15 (12 p.m.) 3,730 aec.-ft.; Sept. 

6 (3 p.m.) 9,840 aec.-ft.

a Ho gage-height record; dlacharge computed on baala of recorde for Glla River ne*r Clifton and 

Son Francisco River at Clifton.

-2S2 Febi>uary 1936

UNITED STATES DEPWTIENT OF THE IHTERIOR 

Oeolog al Surrey
GILA. RIVER BASIN 

Diversions from Gila River in Safford Valley, Ariz.

225

Safford Valley lies along Gila River in Graham County, Ariz., extending from the vicinity of Bonita Creek on the east to San Carlos Indian Reservation on the west. Twelve 

canals, listed in the following table according to their position from east to west, and 

two pumps divert water from Gila River for irrigation in the valley. Intake of Brown 

canal, at the eastern end of the valley, is about 2 miles downstream from the station on 

Gila River below Bonita Creek, near Solomonsville; intake of Colvin-Jones canal, at the 

western end, is about 20 miles upstream from station on Gila River near Calva.

Records of monthly diversion for all the canals except Fourness, Fort Thomas, and ColvlnJones 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 in records for 1914- 

15 and 1920-31.) Records of monthly diversions for all canals are available for 1936-40.

Records of daily diversions since January 1936 have been collected by the Gila Water 

Commissioner, appointed by United States District Court for Arizona. Water-stage recorders with Parshall flumes or weirs were used by the water commissione" to obtain records of diversion by the canals, and rated pumps were used to obtain records of pumped 

water.

The following tabulation of annual diversion by each canal and combined monthly diversion by the canals as a group have been compiled'and furnished by Gila Water Commissioner.

Annual diversions, In acre-feet, from Gila River by canals and pumps In 

Safford Valley, Ariz.

Canal

Total .............................

Water year 

1939-40

23 780

S 840

36

106.800

Calendar year 

1939

24

78.820

Combined monthly diversion, in second-feet, from Gila River by caials in 

Safford Valley, Ariz., during water year October 1939 to Septembe- 1940.

Month

Calendar year 1939. .....

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

Water year 1939-40......

Maximum

246

421

421

436

Minimum

88.8

0

57 3

en A.

.3

Mean

166

109

147

Run-off in 

acre-feet

10,200

78,820

106,800
226 OIIA RIVER BASIN 

Olla River at Calva, Arlz.

Location.- Water-stage recorder, lat. 33°11', long. 110°13', In sec. 5, T. 3 S., R. 21 E., 

unsurveyed, on San Carlos Indian Reservation, at railroad bridge at head of San Carlos 

Reservoir, li miles northwest of Calva. Datum of gage Is 2,514.77 feet a^ove mean sea 

level (general adjustment of 1929).

Drainage area.- 11,490 square miles.

Records available.- March 1929 to September 1940.

Average discharge.- 11 years, 279 second-feet.

Extremes.- Maximum discharge during year, 5,620 second-feet Oct. 9 (gage height, 7.15 feet); 

no flow during parts of June and July.

1929-40: Maximum discharge, 21,500 second-feet Feb. 12, 1932 (gage height, 9.7 feet); 

no flow on several days each year.

Maximum discharge known, probably in excess of 100,000 second-feet, occurred Jan. 20, 

1916, computed on basis of peak discharge at stations near Solomonsvllle and at Kelvin.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Large diversions above station for irrigation. During the year 64 discharge measurements were made.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

5

6 

7 

S 

9 

10

11 

18 

13 

14 

IS

16 

17 

IS 

19 

80

81 

88 

83 

84 

85

86 

87 

88 

89 

30 

31

Oct.

10 

8 

6 

3 

2

2 

262 

1,940 

4,710 

2,040

792 

436 

328 

860 

202

163 

140 

115 

101 

86

77 

77 

72 

66 

58

57 

64 

53 

53 

59 

62

Bov.

65 

66 

58 

62 

62

66 

65 

53 

53 

50

43 

47 

58 

62 

54

52 

57 

74 

64 

57

59 

58 

54 

65 

101

94 

118 

111 

130 

162

Dec.

158 

155 

150 

147 

}40

122 

105 

94 

83 

78

78 

69 

57 

51

48

46 

43 

40 

38 

37

36 

36 

35 

35 

45

53 

46 

53 

53 

50 

42

Jan.

39 

74 

15S 

190 

806

809 

223 

264 

260 

244

237 

244 

244 

237 

226

226 

223 

823 

223 

219

216 

212 

219 

226 

223

230 

209 

202 

183 

186 

193

Feb.

206 

492 

3,390 

3,880 

1,970

1,230 

875 

700 

571 

526

457 

394 

352 

358 

319

297 

297 

272 

268 

260

230 

230 

391 

326 

1,220

1,020 

790 

733 

722

Month

Oot 

BOTF 

Dec

C

Jan 

?eb 

Xar 

Apr 

Xay 

Jun 

Jul 

Aug 

Bep

H

alandar year 1939..... .................

nary «

ater year 1939-40. .....................

Mar.

679 

669 

607 

553 

436

352 

328 

297 

264 

252

868 

237 

252 

528 

502

406 

347 

323 

288 

248

216 

180 

152 

138 

145

202 

174 

142 

126 

118 

107

Apr.

98 

98 

96 

94 

92

77 

6S 

62 

61 

53

48 

45 

43 

42 

42

38 

37 

37 

35 

34

32 

31 

32 

32 

34

37 

34 

33 

39 

41

Seoondfoot-days

12,304 

2,120 

2,823

57,820

6,46S 

22,770 

9,536 

1,545 

1,185 

1,416 

1,335 

11,438 

7,476

79,816

Hay

39 

57 

77 

82 

77

78 

83 

74 

57 

46

36 

35 

32 

26 

82

18 

17 

16 

18 

15

13 

16 

18 

17 

18

32 

34 

42 

43 

29 

18

Ksudinm

4,710 

162 

158

4,710

264 

3,880 

679 

98 

83 

356 

504 

2,310 

2,620

4,710

June

14 

18 

10 

11 

12

9 

8 

6 

4 

3

2

1 

1 

0 

0

0 

0 

0 

0 

0

0 

47 

356 

148 

249

176 

82 

a20 

alO 

235

July

504 

132 

97 

74 

55

43 

31 

88

15 

11

7 

5 

3 

1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

36 

62 

48 

26 

28 

135

Hininum

Z 

43 

35

0

39 

806 

107 

31 

13 

0 

0 

25 

26.

0

Aug.

76 

116 

306 

523 

505

807 

a70 

a40 

a30 

a25

176 

581 

215 

8,310 

1,140

1,930 

605 

386 

253 

151

315 

174 

297 

178 

182

213 

184 

141 

76. 

52 

41

Mean

397 

7T.7 

71.7

15 B

20'» 

785 

30S 

51.5 

39.8 

47.8 

4-5.1 

36T 

24T

818

Sept.

38 

158 

134 

74 

58

927 

2,680 

534 

310 

218

176 

181 

93 

65 

59

aSO 

a45 

a40 

a35 

a30

26 

865 

555 

390 

162

88 

66 

46 

35 

82

Run-off in 

acre-feet

84,400 

4,800 

4,410

114,700

12,830 

45,160 

13,910 

3,060 

2,350 

2,810 

2,650 

22,690 

14,830

158,300

a No gage-height record; discharge June 28, 29, Aug. 7-10 computed from gage-height graph based 

on partial record and trend of record for preceding and following days; discharge Sept. 16-20 interpolated.

9-838 February 1936

UNITED STATES DEPAP^KENT OP THE INTERIOR 

Qeolog al Survey
GIU RIVER BASIN 

San Carlos Reservoir at Coolidge Dam, Ariz.

227

Location.- Water-stage recorder, lat. 33°10'301', long. 110°31'45", in NWi sec. 17, T. 3 S., 

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 (revised). 

Records available.- November 1928 to September 1940.

Extremes.- Maximum contents during year, 53,000 acre-feet Mar. 20 (elevation, 2,409.16 feet): 

minimum 1,190 acre-feet July 24 (elevation, 2,383.99 feet).

1928-40: Maximum usable contents, 444,200 acre-feet Apr. 5. 1932 (elevation, 2,471.56 

feet): minimum (since appreciable storage was attained in 1929), 396 acre-feet July 23, 

1939 (elevation, 2,383.33 feet).

Remarks.- Reservoir is formed by concrete multiple-dome dam; storage be^an Nov. 15, 1928; 

dam completed Oct. 25, 1928. Total usable capacity about 1,200,000 acre-feet between 

elevations 2,383.0 feet (sill of outlet gates) and 2,523.0 feet (top of automatic spillway gates) above mean sea level. Dead storage below elevation 2,383.0 feet, 10,350 

acre-feet according to 1937 survey. Figures given herein represent usable contents. 

Water is used for irrigation of San Carlos project and for power dev3lopment, dependent 

on irrigation demands.

Elevation at 12 p.m., In feet, water year October 1939 to September 1940

D«y

i

2

S

4

6

6

7

B

9

10

11

18

IS

14

16

16

17

18

19

20

81

22

83

84

86

86

87

28

89

50

51

Oct.

369.28

389.04

388.77

388.52

383.26

388.02

388.58

390.23

394.90

396.97

397.51

397.73

397.84

397'. 88

397.87

397.82

397.77

397.69

397.59

397.47

397.33

397.20

397.06

396.90

396.72

396.51

396.33

396.13

595.95

395.74

395.59

HOT.

395.45

395.30

395.14

394.99

394.85

394.70

394.56

394.42

394.31

394.16

394.02

393.86

393.69

393.57

393.43

393.30

393.17

393.05

392.94

392.82

392.69

392.57

392.45

392.35

392.25

392.16

392.09

392.09

392.13

392.09

-

Dee.

392.10

392.08

392.07

392.06

392.08

392.07

392.07

392.01

391.87

391.76

391762

391.45

391.17

390.69

390.61

390.34

390.17

390.01

389.82

389.64

389.45

389.24

389.06

388.90

388.76

388.63

388.47

388.30

388.16

388.06

388.02

Jan.

387.96

387.89

387.92

338.00

388.15

386.33

388.52

388.72

388.92

389.11

389.24

389.38

389.48

389.68

389.85

389.98

390.14

390.29

390.41

390.54

390.64

390.70

390.75

390.79

390.85

390.92

?90.96

391.00

391.04

391.06

391.07

Feb.

391.30

392.86

395.95

399.28

400.73

401.58

402.21

402.72

403.01

403.19

403.32

403.37

403.42

403.47

403.47

403.55

403.75

403.94

404.13

404.30

404.48

404.55

404.64

404.83

405.48

406.06

406.46

406.78

407.10

-

-

Mar.

407.38

407.71

407.97

408.23

408.41

408.49

408.55

408.59

408.60

408.60

408.57

408.55

408.51

408.65

408.82

408.96

409.04

409.09

409. 12

409.11

409.07

409.01

408.90

408.81

408.72

408.65

408.56

408.46

408.34

408.20

408.06

Apr.

407.94

407.83

407.72

407.61

407.47

407.33

407.16

407.01

406.86

406.67

406.48

406.28

406.10

405.89

405.68

405.46

405.25

405.04

404.84

404.62

404.38

404.16

403.93

403.68

403.45

403.22

402.97

402.75

402.52

402.30

-

May

402.07

401.85

401.63

401.40

401.18

400.95

400.72

400.50

400.26

400. 00

399.72

399.47

399.20

398,93

398.65

398.35

398.06

397.80

397.52

397.25

396.97

396.72

396.47

396.22

395.95

395.67

395.41

395.16

394.93

394.68

394.45

June

394.19

393.95

393.70

393.50

393.31

393.12

392.93

392.72

392.52

392.32

392.04

39L.76

391.56

39L.35

391.11

390.89

390.65

390.38

390.09

389.81

389.50

389.32

389.47

389.79

389.84

389.57

389.65

389.68

389.42

388.99

-

July

399.18

388.91

398.70

398.65

398.40

388.25

398.23

398.06

397.70

377.32

396.98

396.57

396.14

395.68

395.23

395.08

395.06

395.05

394.82

394.56

394.36

394.20

394.04

394.20

394.40

394.41

394.46

394.42

394.23

394.08

394.03

Aug.

384.08

384.14

384.63

385.83

386.68

386.95

386.78

386.43

386.00

385.60

385.34

385.71

385.64

388.06

389.97

391.97

392.15

392.03

391.99

391.67

391.22

390.68

390.48

390.59

390.51

390.22

389.93

389.55

389.09

388.55

387.95

Sept.

387.33

386.99

387.04

386.82

386.57

386.95

389.83

389.83

389.45

389.28

389.02

388.77

388.44

388.04

387.59

387.11

386.60

386.32

386.11

385.87

385.65

385.65

386.14

386.71

386.70

386.41

385.97

385.70

385.73

385.80

Ho be.- Add 2,000 feet to obtain elevations above mean aea level.

9-838 September 1937

DHITED STATES DEPARTMENT 0? THE INTERIOR 

Oeolog il Survey
GI1A RIVER BASIN

Contents at 12 p.m., in acre-feet, of San Carlos Reservoir at Coolidge Dam, Ariz 

October 1939 to September 1940

for water year

D*T

i

2

S

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

30

51

Oct.

8,510

8,130

7,720

7,360

6,970

6,610

7,440

10,000

18,100

22,100

23,200

23,700

23,900

24,000

24,000

23,900

23,800

23,600

23,400

23,200

22,900

22,600

22,300

22,000

21,600

21,200

20,900

20,500

20,100

19,700

19,400

HOT.

19,100

18,800

18,500

18,200

18,000

17,700

17,400

17,200

17,000

16,700

16,400

16,200

15 , 800

15,600

15,400

15,200

14,900

14,700

14,500

14,300

14,100

13 , 900

13,700

13,500

13,300

13,200

13,000

13,000

13,100

13,000

-

Dec.

13,100

13,000

13,000

13,000

13,000

13 , 000

13 , 000

12 , 900

12,700

12,500

12,300

12,000

11,500

11,000

10,600

10,200

9,900

9,640

9,340

9,060

8,770

8,440

8,170

7,920

7,710

7,520

7,280

7,030

6,820

6,670

6,610

Jan.

6,520

6,420

6,470

6,580

6,800

7,080

7,360

7,650

7,950

8,240

8,440

8,660

8,820

9,130

9,390

9,590

9,850

10,100

10,300

10,500

10,600

10,800

10,800

10,900

11,000

11,100

11,200

11,200

11,300

11,300

11,400

Feb.

11,700

14,400

20,100

26,900

30,200

32,200

33,700

35,000

35,800

36,200

36,600

36,700

36,800

36,900

36,900

37,200

37,700

38,200

38,700

39,100

39,600

39,800

40,100

40,600

42,400

44,000

45,200

46,100

47,000

_

-

Mar.

47,800

48,800

49,500

50,300

50,800

51,000

51_,200

51,300

51,400

51,400

51,300

51,200

51,100

51,500

52,000

52,400

52,700

52,800

52,900

52,900

52,800

52,600

52,200

52,000

51,700

51,500

51,200

51,000

50,600

50,200

49,800

Apr.

49,400

49,100

48,800

48,500

48,100

47,700

47,200

46,700

46,300

45 , 800

45,200

44,600

44,100

43,500

43,000

42,300

41,800

41,200

40,600

40,000

39,400

38,800

38,100

37,500

36,900

36,300

35,600

35,100

34,500

34,000

-

M«y

33,400

32,900

32,300

31,800

31,200

30,700

30,200

29,700

29,100

28,500

27,900

27,400

26,800

26,200

25,600

25,000

24,400

23 , 800

23,200

22,700

22,100

21,600

21,100

20,600

20,100

19,600

19,100

18,600

18,100

17,700

17,200

June

16,800

16,300

15,900

15,500

15,200

14,800

14,500

14,100

13,800

13,400

13,000

12,500

12,200

11,800

11,400

11,000

10,700

10,200

9,760

9,330

8,850

8,570

8,800

9,300

9,370

8,960

9,080

9,130

8,720

8,060

-

July

8,350

7,940

7,620

7,540

7,180

6,960

6,920

6,P70

6,150

5,610

5,120

4,560

3,970

3,350

2,760

2,550

2,530

2,520

2,230

1,900

1,650

1,450

1,250

1,450

1,700

1,710

1,780

1,730

1,490

1,300

1,240

Aug.

1,300

1,380

1,P90

3,550

4,700

5,080

4,840

4,360

3,770

3,240

2,900

3,390

3,300

6,670

9,580

12,800

13,200

13,000

12 , 900

12,400

11,600

10,700

10,400

10,600

10,400

9,980

9,520

8,920

8,210

7,400

6,510

Sept.

5,620

5,140

5,210

4,900

4,560

5,080

9,360

9,360

8,770

8,510

8,100

7,720

7,240

6,640

6,000

5,300

4,600

4,210

3,920

3,600

3,310

3,310

3,970

4,740

4,730

4,330

3,730

3,380

3,420

3,510

Monthly elevation and contents, water year October 1939 to September 1940

Date

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

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

Elevation 

(feet)

2 389 55

2 395 59

2*392 09

2)388.02

2 394 45

2*388 99

2,385.80

-

Contents 

(acre-feet)

6,610

3,510

-

Change in conterts 

during month 

(acre-feet)

-6,390

-3 , 000

-5,430
GILA RIVER BASIN 

Gila River below Coolidge Dam, Arlz.

229

Location.- Water-stage recorder and Parshall flume, lat. 33°10'15", long. 110°31'45", in 

SWt sec. 17, T. 3 S., R. 18 E., unsurveyed, 2,200 feet downstream f-om Coolidge Dam. 

Datum of gage is 2,309.94 feet above mean sea level (Indian Irrigation Service bench 

mark).

Drainage area.- 12,890 square miles (revised).

Records available.- April 1914 to September 1940. July 1899 to November 1905, at site 8 

miles upstream, below mouth of San Carlos River. August 1910 to February 1911, at site 

9 miles upstream, above mouth of San Carlos River.

Average discharge.- 14 years (1914-38), 636 second-feet unregulated; 12 years (1928-40) 274 

second-feet, regulated.

Extremes.- Maximum discharge during year, 634 second-feet Aug. 17, 18 (head on flume, 2.94 

feet); minimum daily, 1 second-foot Aug. 15.

1914-28 (unregulated): Maximum discharge, 130,000 second-feet Jan. 20, 1916, computed on basis of peak discharge at Solomonsville and at Kelvin; no flow for several 

periods.

1928-40 (regulated): Maximum discharge, 1,240 second-feet July 31, 1937 (head on 

flume, 4.35 feet); no flow on several days in most years.

Remarks.- Records excellent. Crest width of Parshall flume, 30 feet. Large diversions 

above San Carlos Reservoir. Discharge regulated at Coolidge Dam since Nov. 15, 1928. 

Flow of about half a second-foot from warm spring between dam and gage (see list of 

miscellaneous discharge measurements) included in records.

Discharge, in second-feet, water year October 1939 to September- 1940

Day

1 

S 

3 

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

83 

84 

25

86 

27 

28 

29 

30 

31

Oct.

180 

171 

171 

175 

173

171 

173 

112 

14 

102

185 

193 

193 

193 

196

193 

193 

193 

198 

198

207 

198 

200 

220 

233

233 

228 

228 

228 

219 

196

Her.

196 

196 

196 

196 

196

196 

198 

200 

193 

180

196 

177 

175 

175 

175

173 

173 

173 

171 

171

171 

171 

171 

171 

171

171 

171 

171 

171 

171

Dec.

171 

171 

171 

164 

141

137 

137 

16S 

212 

184

223 

221 

290 

298 

290

272 

196 

196 

196 

196

196 

225 

191 

193 

193

191 

191 

191 

191 

146 

110

Jan.

109 

109 

107 

112 

145

145 

129 

129 

129 

129

170 

151 

147 

127 

131

127 

129 

131 

129 

124

143 

163 

177 

177 

177

177 

175 

175 

175 

175 

191

Feb.

189 

149 

160 

122 

100

101 

109 

46 

187 

298

298 

300 

300 

303 

303

237 

14 

12 

13 

11

10 

163 

24S 

166 

103

191 

248 

250 

216

Month

Dot 

Hoi

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

jul

*"« 

Bep

«

uary

ust........ . ., ......

later year 1939-4

Mar.

231 

203 

203 

198 

219

248 

343 

240 

265 

288

380 

292 

295 

290 

298

295 

300 

310 

298 

300

300 

300 

300 

298 

285

263 

262 

272 

303 

336 

292

Apr.

288 

272 

272 

270 

272

285 

290 

288 

295 

316

316 

318 

318 

326 

324

334 

343 

343 

325 

324

321 

340 

348 

351 

337

318 

316 

305 

316 

316

Seoondfoot-days

5,767 

5,416 

6,052

61,961

4,514 

4,847 

8,507 

9,387 

8,969 

5,481 

4,267 

9,583 

8,250

81,040

Hay

308 

311 

305 

308 

316

316 

318 

316 

317 

313

313 

311 

305 

305 

305

308 

311 

310 

303 

295

280 

268 

268 

268 

267

252 

252 

238 

228 

231 

223

MqT^myflH

233 

200 

298

487

191 

303 

336 

351 

318 

299 

332 

616 

598

616

June

221 

221 

207 

164 

160

155 

155 

157 

157 

157

210 

207 

152 

158 

172

155 

172 

189 

206 

181

190 

160 

154 

144 

217

29° 

188 

9 

203 

361

July

316 

332 

214 

70 

17 S

105 

11 

119 

216 

226

205 

238 

258 

255 

258

219 

69 

8 

121 

145

109 

93 

78 

65 

57

6 

6 

60

98 

74 

58

Aug.

65 

65 

87 

206 

229

58 

219 

258 

260 

270

265 

259 

305 

116

1

265 

588 

453 

326 

427

616 

602 

536 

438 

340

343 

3P9 

405 

396 

393 

393

Minimum Mean

14 186 

171 181 

110 195

1 170

107 146 

10 167 

198 274 

270 313 

223 289 

9 183 

6 138 

1 309 

84 275

1 '221

Sept.

396 

280 

203 

2J5 

205

311 

506 

598 

567 

326

318 

321 

324 

316 

318

324 

316 

204 

153 

153

155 

153 

155 

155 

217

272 

311 

212 

182 

84

Run-off in 

acre-feet

11,440 

10,740 

12,000

122,900

8,950 

9,610 

16,870 

18,620 

17,790 

10,870 

8,460 

19,010 

16,360

160,700

9-238 February 1936

UNITED STATES DEPAF'PMEIJT OP THE INTERIOR 

Qeolog il Survey
230 GILA RIVER BASIN 

Gila River at Kelvin, Ariz.

Location.- Water-stage recorder, lat. 33°06'15", long. 110°58'45", in MWi sec. 12, T. 4 S., 

R. 13 E., at Kelvin, 1,000 feet downstream from Mineral Creek, 15 miles downstream from 

San Pedro River, and 19 miles upstream from Ashurst-Hayden Darn.

Drainage area.- 18,000 square miles (revised). 

Records available.- January 1911 to September 1940.

Average discharge.- 17 years (1911-28) unregulated, 760 second-feet; 12 years (1928-40) 

largely regulated, 389 second-feet.

Extremes.- Maximum discharge during year, 38,200 second-feet Aug. 14 (gage height, 12.06 

feet); minimum, 24 second-feet Feb. 23; minimum daily, 26 second-feet Feb. 22.

1911-40: 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,COO secondfeet; minimum, less than one second-foot in summers of several years prior to 1929.

Remarks.- Records fair prior to June 1 and good thereafter, except those for period of no 

gage-height record, which are poor. Large diversions for Irrigation above station. 

Flow regulated at Coolidge Dam (capacity about 1,200,000 acre-feet); no otrer regulation. Dxiring the year 50 discharge measurements were made.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

81 

28 

83 

24 

25

26 

27 

28 

29 

90 

31

Oct.

151 

148 

140 

140 

144

144 

241 

1,070 

396 

165

150 

180 

178 

178 

169

169 

169 

173 

173 

183

178 

183 

173 

173 

213

235 

225 

213 

207 

207 

192

Hov.

178 

178 

173 

173 

183

183 

187 

187 

255 

219

192 

183 

169 

160 

164

164 

173 

173 

169 

169

164 

160 

164 

169 

164

160 

155 

162 

219 

178

Dec.

173 

160 

160 

160 

155

140 

129 

125 

151 

190

169 

204 

218 

288 

294

281 

262 

187 

173 

178

173 

206 

208 

196 

225

254 

219 

213 

207 

213 

17 P

Jan.

133 

122 

115 

112

122

144 

148 

133 

125

129

129 

169 

160

155 

125

125 

125 

129 

125 

118

118 

133 

155 

173

173

173 

173 

173 

173 

173 

169

Peb.

233 

478 

413 

334 

225

160 

151 

144 

115 

151

288 

294 

294 

294 

294

281 

224 

60 

37 

32

28 

26 

586 

945 

a480

a!70 

a200 

a250 

a250

Month

Oot 

Hov 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

J\m 

Jul

Au« 

Bep

1

uary

 ter year 1939-4

Mar.

207 

225 

207 

201 

196

213 

242 

236 

236 

260

260 

242 

254 

260 

248

281 

281 

288 

308 

301

294 

288 

288 

288 

281

274 

260 

260 

260 

294 

315

Apr.

281 

281 

248 

242 

242

248 

260 

274 

267 

274

301 

294 

288 

301 

308

308 

315 

337 

337 

315

308 

308 

329 

329 

344

322 

301 

288 

281 

28L

Seoondfcot-days

6,660 

5,327 

6,090

88,461

4,429 

7,437 

8,048 

8,812 

8,483 

6,552 

6,299 

34,405 

10,543

113,085

Hay

281 

281 

281 

281 

281

281 

281 

281 

281

281

288 

288 

288 

288 

288

288 

288 

288 

294 

288

288 

274 

274 

267 

260

260 

242 

248 

230 

225 

219

^ay^ii"""

1,070 

255 

294

5,560

173 

945 

315 

344 

294 

741 

532 

11,100 

798

11,100

June

219 

207 

213 

207 

155

151 

151 

148 

144 

140

144 

195 

207 

173 

138

165

152 

162 

170 

200

315 

194 

510 

381 

206

213 

741 

279 

91 

181

July

309 

294 

326 

196 

138

131 

112 

94 

73 

122

165 

140 

169 

196

196

224 

303 

4L1 

220 

142

173 

150 

131 

120 

291

532 

367 

216 

142 

115 

101

iHpimm

140 

155 

125

2

112 

26 

196 

242 

219 

91 

73 

58 

173

26

Aug.

76 

58 

322 

424 

391

668 

298 

343 

260 

248

313 

347 

329 

11,100 

8,890

844 

661 

796 

979 

772

639 

631 

595 

1,030 

751

575 

437 

413 

397 

405 

413

Mean

215 

178 

196

242

143 

256 

260 

294 

274 

218 

203 

1,110 

3£1

309

Sept.

440 

413 

372 

267 

242

230 

394 

561 

604 

516

383 

798 

546 

352 

344

344 

359 

386 

246 

192

192 

310 

360 

240 

187

237 

2P7 

328 

230 

173

Run-off In 

aore-feet

13,220 

10,570 

12,080

175,500

8,780 

14,750 

15,960 

17,480 

16,830 

13,000 

12,490 

68,240 

20,910

224,300

a No gage-height record; discharge computed on basis of records for stations below Coolidge Dan, 

San Pedro River near Mammoth, Aravaipa Creek near Peldman, and Florence-Casa Orande caral at 

Ashurst-Hayden Dam.

 932 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolog al Survey
GILA RIVER BASIN 231

Glla River at Ashurst-Hayden Dam, near Florence, Arlz.

Location.- Water-stage recorder, lat. 33°06', long. 111°15' (revised), In NWi sec. 8, 

 f. 4S., R. 11 E., at Ashurst-Hayden Dam, 10 miles northeast of Florence. Permanent 

crest of dam Is 1,563.0 feet (general adjustment of 1912) or 1,562.5 feet (general 

adjustment of 1929) above mean sea level. Crest height temporarily Increased by 

amounts varying from 0 to 0.9 foot by use of timbers and sand bags throughout the 

year.

Drainage area.- 18,300 square miles (revised).

Records available.- July 1923 to September 1940 (head on crest of c?am only).

Extremes.- Maximum head during year, 3.3 feet Aug. 14; no flow over dam greater part 

of year.

1923-40: Maximum head, 8.0 feet Sept. 28, 1926; no flow over dam greater part 

of each year.

Remarks.- Figures given herein represent dally mean head on dam, corrected to eliminate 

effect of temporary drawdown when sluicing occurs. Records do not include water 

sluiced during periods of no flow over dam.

Florence-Casa Grande canal diverts water at this dam (see p. 253). Many other 

diversions above station for Irrigation. Flow regulated at Coolldge Dam, except for 

periods of tributary Inflow below that dam. San Pedro River contributes major portion of unregulated inflow.

Cooperation.- Water-stage recorder graph and data on height of temporary crest furnished 

by ornce of Indian Affairs.

Mean head. In feet, water year.October 1939 to September 1940

Dv

1

2

5

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

50

31

Oct.

0

0

0

0

0

0

0

.30

.01

0

0

0

0

0

0

0

0

0

(o)

0

0

(c)

0

0

(c)

(c)

0

0

0

0

0

HOT. Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.01

0

0

0

0

0

0

0

0

Jan.

0

0

0

0

0

0

(e]

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

(c)

.04

(o)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.13

.21

0

0

0

0

0

-

-

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

0

0

0

(o)

Apr.

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

0

0

0

-

Hay June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.ov

0

.18

(c )

0

(c)

.14

.or

0

0

-

July

(o)

0

0

0

0

0

0

0

0

0

.01

.02

( c )

(c)

0

0

(c)

0

0

0

0

0

0

.03

.13

.02

0

(o)

0

0

0

Aug.

0

0

0

(c)

0

0

0

(o)

0

0

0

0

0

1.14

1.65

.23

.06

.04

.29

.20

.06

0

0

.09

.04

0

0

0

0

0

0

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

.04

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

~

c Flow over crest of dam for short time, but mean head for day was less than 0.01 foot. 

Note.- Water below creat of dan during months left blank and on days shown by zero.

9-238 September 1957

UNITED STATES DEPARTMENT OF THE INTERIOR 

.Oeolog al Survey
232 01LA RIVER BASIN 

Oila River near Laveen, Ariz.

Location.- Water-stage recorder above concrete diversion dam, lat. 33°15', long. 112° 

 10', In SW^NWi sec. 16, T. 2 S., R. 2 E., on Gila River Indian Reservation, at

highway bridge, li miles south ot Komatke, 8 miles south of Laveen, and 8 miles

upstream from Santa Cruz River.

Drainage area.- 20,200 square miles.

Records available.- January to September 1940.

Extremes.- Maximum discharge during period, 8,740 second-feet Aug. 17 (gage height, 

9.21 reet); no flow at times during summer months.

Remarks.- Records good except those for period of no gage-height record and for period 

when entire flow was through sluice gate, which are poor. Records include flow 

over dam, through sluice gate in dam, and in bypass channel a quarter of a mile 

south of gage, but do not include flow in Cooperative canal, which diverts at dam 

(see table at end of report for miscellaneous canal measurements). Large diversions for irrigation above station. Flow partly regulated by storage in San Carlos 

Reservoir (see p. 227).

Discharge, In second-feet, water year October 1939 to September 1940

nay

1 

S 

3 

4 

S

6

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Mov. Dec. Jan.

> a!5 

/

Feb.

^ alO

elO 

e!2 

e!3 

e!4

e!4 

e!4 

e!4 

ell 

ell

ell 

eS 

eS 

e9 

e!2

elS 

e!2 

e9 

14 

113

e26 

ell 

e8 

e6

Month

dot 

MOT 

Dec

C

Jan "«b 

x*r 

Apr -Hy 

Jun 

Jul 

4ug 

<tep

T

alendar year

he pe rlo

Mar.

e4 

e4 

e4 

e4 

e4

e4 

e4 

e4 

e4 

e4

e4 

e4 

e4 

e4 

e5

e5 

e6 

e5 

e6 

e6

e6

e7 

e7 

e7 

e7

e7 

e7 

e7 

e7 

e7 

e7

Apr.

e7 

e7 

e7 

e7 

e8

11 

14 

14 

14 

14

12 

12 

10 

10 

12

12 

10 

10 

10 

8

8 

8 

8 

7 

7

7 

5 

3 

3 

3

Secondfoot-days

465 

432 

164 

26S 

129 

58 

167 

8,261 

154

-

May

3 

3 

3 

3 

3

3 

3 

5 

5 

5

5

7 

7 

7 

7

7 

5 

5 

5 

5

5 

5 

3 

3 

3

3 

3 

2 

2 

2 

2

TUflXlJTTnMTI

113 

7 

14 

7 

24 

84 

4,180 

44

-

June

2 

2 

2 

2 

2

2 

3 

3 

5 

5

3 

24 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

el 

e2 

0

July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

el 

eg 

e2 

e£

e£ 

e3 

e3 

e3 

84

65 

0 

0 

0 

0 

0

Minimum

4 

3 

2 

0 

0 

0 

0

-

AUjT.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

V24

2,6-30 

4,180 

102 

82 

?13

52

e6 

e4 

el 

0

60 

e7 

0 

0 

0 

0

Sept.

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

el 

el 

44 

e!2

e5 

e2 

e4 

e3 

e4

e4 

e5 

e6 

e7 

e8

e9 

e9 

elO 

elO 

elO

 Run-off in 110811 acre-feet

15 922 

14.9 857 

5.3 325 

8.9 532 

4.2 256 

1.9 115 

5.4 331 

266 16,390 

5.1 305

20,030

a No gage-height record; discharge computed on basis of two discharge measurements made by Office 

of Indian Affairs and weather records, 

e Entire flow through sluice gate.

February 1936

TOUTED STATES DEPATIEHT OF THE IHTERIOR 

Oeolog al Surrey
GILA RIVER BASIN «*> 

Glla River below Glllespie Dam, Ariz.

Location.- Water-stage recorder above left end of Glllespie Dam, lat. 33°14', 

long. 112°45. in SElNEi sec. 28, T. 2 S., R. 5 W., 8 miles downstream from 

Hassayampa River. Datum of gage Is 5.00 feet below average elevation of crest of 

dam which Is 753.46 feet above mean sea level (general adjustment of 1929).

Drainage area.- 49,600 square miles (revised). 

Records available.- August 1921 to September 1940.

Extremes.- Maximum discharge during year, 2,620 second-feet Aug. 19 (height over crest 

of dam, 0.87 foot); no flow during greater part of year.

1921-40: Maximum discharge, 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.

A peak discharge of 250,000 second-feet (estimated) occurred in this reach of 

Gila River in February 1891.

Remarks.- Records good except those for Mar. 16, which are poor. Records do not Include 

flow In Glllespie and Enterprise canals which divert -from dam Just upstream (see 

pps. 286 and 287 ), but do Include discharge through sluice gates. Other diversions above station for Irrigation. Flow of Gila River and tributaries above this 

station Is regulated by San Carlos Reservoir on Glla River (canaclty, about 

1,200,000 acre-feet), by a series of reservoirs on Salt River (capacity, 1,771,000 

acre-feet, revised), by Bartlett Reservoir on Verde River (capacity, 182,600 acrefeet), and by Lake Pleasant on Agua Frla River (capacity, 178,000 acre-feet, revised), 

For records of combined flow of Glla River, Gillesple canal, and Enterprise canal, 

see table on following page.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

SO

81

22

23

24

25

26

27

28

29

30

31

Oct. HOT. Dec. Jan. Feb.

Month

Jan 

Pet 

Mar

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

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

Jul 

Alut

y.... .*..... ...........................

Water year 1939-4

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

052

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

Seoondfoot-days

0

0

0

17,923

0 

0 

62

0

0

0

0 

3,170

0

3,222

May

Maximum

0

0

0

2,720

0 

0 

62

0

0

0

0 

1,640

0

1,540

June July

Minimum

0

0

0

0

0 

0 

0

0

0

0

0 

0

0

0

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

490

1,640

1,140

0

0

0

0

0

0

0

0

0

0

0

0

Mean

0

0

0

49.1

0 

0 

1.7

0

0

0

0 

102

0

8.S

Sept.

Run-off in 

acre-feet

0

0

0

36,660

0 

0

103

0

0

0

0

6,290

0

6,390

c Entire flow through sluice gates; discharge computed on basis of partial gage-height record 

above dam and records for Oillespie and Enterprise canals.

9-238 February 1936

UUITED STATES DEWTMEHT OF THE INTERIOR 

QeoloL ;al Surrey
234 GILA RIVER BASIN

C anblned discharge, In second-feet, of Gila River below Glllesple Dam and of Glllesple ard Enterprise 

canals at Glllesple Dam, Ariz., for water year October 1939 to September 1940

r-y

i

2 

S 

4

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

30

31 

32 

33 

34 

35

36

37 

38 

39 

30

31

Oct. HOT.

138 

142

Dec.

136 

132 

133 

133 

132

130 

128 

124 

124 

121

123 

117 

111 

106 

106

108 

113 

111 

108 

107

109 

110 

112 

117 

136

132 

135 

132 

130 

132 

137

Jan.

140 

150 

152 

144 

138

136 

138 

143 

143 

142

140 

138 

137 

131 

136

142 

143 

146 

147 

149

153 

153 

150 

149 

150

149 

148 

149 

157 

175 

182

Feb.

171 

172 

168 

159 

155

153 

150 

151 

153 

149

144 

147 

149 

147 

157

162 

158 

155 

152 

152

150 

147 

149 

150 

148

148 

148 

146 

143

Month

not "n 

Tec

C

Tan "Hi 

" w 

*nr "\j 

.Tun 

,Tul 

>i« "<ip

H

alendar year

ater year 1939-40......................

Mar.

140 

138 

140 

143 

143

138 

134 

131 

130 

130

131 

130 

129 

124 

124

139 

100 

122 

125 

124

124 

126 

124 

125 

126

125 

127 

128 

128 

128 

125

Apr.

128 

129 

127 

125 

125

121 

116 

113 

116 

119

117 

112 

110 

99 

98

105 

102 

98 

104 

104

96 

96 

98 

101 

96

95 

97 

95 

96 

94

Seoondfoot-days

2,753 

3,009 

3,775

_

4,550 

4,433 

4,001 

3,231 

1,951 

1,118 

944 

5,259 

1,925

36,949

*ay

89 

87 

87 

86 

83

87 

86 

80 

74 

74

74 

69 

68 

59 

55

55 

64 

54 

53 

55

55 

55 

52 

50 

47

45 

46 

45 

42 

43 

42

MftJcJlBRini

137

-

182 

172 

143 

129 

89 

46 

33 

1,750 

186

1,750

June

43 

44 

46 

41 

37

38 

39 

41 

42 

41

37 

38 

37 

36 

36

36 

35 

36 

36 

35

35 

35 

37 

37 

35

34 

34 

33 

32 

32

July

32 

31 

32 

33 

31

31 

30 

31 

31 

30

29 

30 

30 

31 

31

32 

32 

33 

32 

31

31 

31 

31 

30 

29

30 

28 

28 

28 

28 

27

Minimum

106

-

131 

143 

100 

94 

42 

32 

27 

27 

50

27

Au,T.

27 

27 

27 

27 

28

28 

30 

29 

29 

30

31 

29 

28 

30 

30

46 

695 

1,750 

1,360 

178

137 

128 

86 

66 

60

57 

55 

56 

55 

51 

49

Sept.

50 

52 

54 

54

52

50 

53 

52 

51 

51

58 

59 

57 

52 

52

52 

59 

66 

123 

186

115 

71 

62 

59 

57

56 

57 

57 

55 

53

M Run-off in ltealL acre-feet

89 5,460 

100 5,970 

122 7,490

-

147 9,020 

153 8,790 

129 7,940 

108 6,410 

62.9 3,870 

37.3 2,220 

30.5 1,870 

170 10,430 

64.2 3,820

101 73,290

Gila River near Dome, Arlz.

Location.- Water-stage recorder, lat. 32 045'30n , long. 114°25'1511 , In SWi sec. 4, T. 8

 S., R. 21 W., 3 miles west of Dome and 12 miles upstream from mouth. Datum of gage 

is 148.18 feet above mean sea level (general adjustment of 1929).

Irainage area.- 58,100 square miles.

Records available.- May 1929 to September 1940. October 1903 to December 1906, at site 

4 miles upstream.

"Extremes.- No flow during year.

 I32S-40: Maximum discharge, 20,700 second-feet Feb. 15, 1932 (gage heigtts, 16.75 

feet); no flow during part of each year.

Maximum dally discharge, 200,000 second-feet (estimated), Jan. 22, 1916.

Remarks.- No flow during 1939-40 water year. Mean discharge during 1939 calendar year, 

4.9 second-feet (run-off, 3,540 acre-feet). Diversions above station for Irrigation. 

Flow regulated by reservoirs above station (see p. 233). No regulation below 

Gillesple Dam.
GILA RIVER BASIN 235

Sunset canal near Vlrden, N. Hex.

Location.- Water-stage recorder and concrete control, lat. 32°39', lo^. 108°56', In 

SWtNWt sec. 17, T. 19 S., R. 20 W., about li miles downstream from Intake, 4 miles 

southeast of Vlrden, and about 12 miles east of Duncan, Arlz.

Records available.- October 1914 to September 1915, July 1922 to September 1931, and 

January 1939 to September 1940 In reports of Geological Survey. January 1936 to 

December 1938 In files In office of Glla Water Commissioner, appointed by United 

States District Court for Arizona.

Extremes.- Maximum discharge during year, 62 second-feet Apr. 4; maximum gage height, 

2.49 feet July 2; no flow at times.

1939-40: Maximum discharge, 66 second-feet July 17, 1939 (gage height, 2.77 feet); 

no flow at times.

Remarks.- Records good. Canal diverts from right baok of Glla River In SWiNWi sec. 21, 

T. 19 S., R. 20 W., for Irrigation In Vlrden Valley. No diversions between Intake 

and station.

Discharge, in second-feet, water year October 1939 to Septembe- 1940

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

51

Oct.

33

31

25

26

24

24

25

.8

0

0

7.4

19

23

18

14

15

27

31

30

30

31

23

17

29

28

28

22

9.6

0

4.2

7.1

Mov.

5.2

1.8

.4

1.1

.9

.9

11

16

19

21

23

22

22

22

22

24

28

28

24

23

24

24

20

13

14

14

15

15

13

6.2

-

Dec.

0.2

0

0

6.1

9.5

9.1

8.7

8.2

8.0

7.6

7.8

7.2

7.4

7.4

7.4

7.2

7.2

6.4

5.4

6.2

7.6

14

18

17

18

12

7.2

7.8

12

11

7.6

Jan.

0

0

0

.2

3.2

6.6

1.1

1.1

1.1

1.2

1.4

1.2

1.1

.5

.3

.3

8.2

14

15

14

9.6

0

0

0

0

6.3

6.3

0

3.4

5.8

4.0

Feb.

0

0

0

0

0

0

.3

1.8

2.7

2.5

.8

1.4

10

14

12

8.7

7.2

13

28

35

36

28

6.7

0

0

1.4

3.5

6.0

8.0

_

-

Month

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

Pet 

Mar

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

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

Water year 1939-4 3......................

Mar.

14

20

16

21

19

15

14

24

34

33

38

40

36

26

25

23

22

37

42

45

51

51

35

14

42

45

48

51

53

50

51

Apr.

54

55

55

56

56

57

56

55

55

51

55

58

58

51

54

52

49

52

52

52

52

49

44

38

39

35

33

34

40

46

-

Secondfoot-days

602.1

473.5

259.2

8,643.1

105.9

227.0 

1,035

1,492

1 297 

'V08.8

873

1,130.3

929

9,132.8

May

50

48

50

46

48

51

40

42

49

50

45

43

38

49

48

48

48

46

38

38

40

36

28

31

29

28

32

43

44

39

32

Maximum

33

28

18

56

15

36 

53

5S

51 

46

56

52

41

58

June

34

35

36

35

31

26

23

20

18

17

16

14

11

11

11

7.6

6.8

6.8

5.2

4.8

6.6

15

37

45

42

38

35

35

40

46

-

July

55

56

55

48

44

41

38

37

28

21

15

12

12

11

13

16

13

13

13

13

17

18

19

32

45

31

34

28

24

33

38

Minimum

0

.4

0

0

0

0 

14

33

28

4.9

11

9.3

11

0

Aug.

40

32

9.3

17

27

36

46

42

51

52

43

44

48

46

44

42

35

17

32

38

44

44

36

26

41

43

41

37

31

f25

21

Mean

19.4

15.8

8.36

23.7

3.42

7.83 

33.4

49.7

41.8 

23.6

28.2

36.5

31.0

25.0

Sept.

35

31

35

32

31

11

25

33

31

29

29

31

38

41

35

33

35

32

32

31

29

33

27

30

34

31

26

25

28

36

-

Run-off in 

acre-feet

1,190

939

514

17,135

210

450 

2,050

2,960

2,570 

1,410

1,730

2.240

1,840

18,100

f Computed from partly estimated gage height.

9-23 400453 O - 41 - 16

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeolo£ al Survey
236 QILA RIVER BASIN

Sunset canal above New Mexico-Arizona State line, near Virden, N. Hex.

Location.- Water-stage recorder and 3-foot concrete Pai'shall flume, lat. 32°41', long. 

109"02', In NEjSEi sec. 31, T. 18 S., R. 21 W., about 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 1940.

Extremes.- Maximum discharge during year, 34 second-feet Oct. 7 (gage height, 1.85 

feet); from rating curve extended above 15 second-feet by logarithmic plotting; no 

flow at times.

1939-40: Maximum discharge, that of Oct. 7, 1939; no flow at times.

Remarks.- Records good. Canal diverts from right bank of Qila River in SW|NWi sec. 

21, T. 19 S., R. 20 W., for Irrigation. Numerous diversions above and telow station for Irrigation.

Discharge, in second-feet, water Tear October 1939 to Septemberl940

Day

1

9

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

81

22

23

24

25

26

27

28

89

30

31

Oct.

0.4

2.8

6.0

6.5

.3

.3

2.8

.1

0

0

0

7.7

9.1

10

4.0

.9

1.0

5.0

5.3

3.0

1.7

6.2

1.2

.4

6.8

3.0

1.6

.1

0

0

0

HOT.

0

0

0

0

0

0

0

0

0

1.3

3.9

5.3

7.3

5.1

3.7

.3

.5

2.3

2.6

3.0

3.1

.5

6.0

7.2

6.6

2.3

5.7

5.7

8.6

.4

-

Dec.

0

0

0

0

2.9

7.7

6.7

6.2

6.7

3.6

3.4

5.6

5.1

5.4

4.7

3.5

3.5

2.3

.6

.3

1.3

2.7

4.7

8.4

8.2

7.4

3.0

2.4

4.7

3.8

3.4

Jan.

0.1

0

0

0

0

4.9

.8

.4

.3

.2

.3

.6

.4

.4

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Pel).

0

0

0

0

0

0

0

0

0

0

0

0

2.4

9.6

8.2

6.7

2.0

.4

11

13

6.7

8.1

11

.2

.1

.1

.8

3.4

4.4

-

Month

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

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

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

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

Mar.......................................

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

Water year 1939-4

Mar.

7.3

7.6

3.6

10

11

8.0

9.3

6.5

12

8.7

5.4

7.3

S.4

6.0

5.3

10

10

12

12

11

9.1

S.5

6.0

1.4

7.0

6.4

12

11

9.3

7.2

9.6

Apr.

11

2.7

1.7

11

7.8

8.5

3.9

5.6

1.6

.6

.6

1.2

11

11

12

12

16

7.8

1.7

3.2

4.4

6.4

6.0

5.1

11

11

8.5

7.3

6.5

7.0

Seoondfoot-days

86.2

81.4

118.4

-

8.5

88.1

258.9

204.1

144.7

88.5

95.8

153.4

139.6

1,467.6

Hay

3.6

1.2

.3

.4

.3

3.8

7.0

8.5

7.3

8.0

1.4

0

0

7.3

8.4

7.3

6.5

9.1

8.4

1.8

.6

.4

1.0

4.1

8.4

12

11

8.2

5.7

2.6

.1

MaxiJBUDi

10

8.6

8.4

-

4.9

13

12

16

12

12

9.5

12*9 3

16

June

0.5

2.2

5.6

12

5.6

1.3

0

.1

.7

7.5

2.5

0

0

0

0

0

0

1.5

3.6

.6

0

0

4.9

7.5

1.5

.8

4.3

9.3

8.7

7.8

July

8.2

9.5

2.4

1.1

.2

6.2

5.4

6.5

4,1

.4

2.4

0

0

0

0

1.2

3.2

3.9

.6

0

0

0

1.4

3.5

7.0

5.6

.8

2.7

5.7

6.8

7.0

IHn<imim

0

0

0

-

0

0

1.4

.6

0

0

0

0

.1

0

Aug.

9.3

7.2

.1

6.8

6.4

2.3

f2

a6

6.8

7.8

5.6

7.0

6.5

3.5

5.4

8.0

6.5

7.0

7.3

6.4

4.4

1.9

fl.O

0

4.4

4.6

7.0

5.1

5.7

1.2

.2

Mean

2.78

2.71

3.82

-

.27

3.04

8.35

6.80

4.67

2.95

3.09

4»95

4*. 65

4.01

Sept.

0.1

5.0

6.2

7.3

3.3

.4

1.5

6.5

8.9

7.7

5.1

2.1

.7

1.2

3.0

8.1

8.4

6.5

5.4

1.1

.1

2.4

7.0

12

10

6.5

5.3

2.5

2.9

2.4

-

Run-off in 

aero-feet

171

161

235

-

17

175

514

405

287

176

190

3O4

277

2,910

a No gage-height record; discharge estimated. 

f Computed from partly estimated gage height.

9-252 February 1936

UNITED- STATES DEP*<miENT OF THE INTERIOR 

Oeolx cal Survey
GILA RIVER BASIN 237

Sunset canal wasteway near Vlrden, N. Mex.

Location.- Water-stage recorder and 3-foot concrete Parshall flume, lat. 32°41', long. 

109"02', In NWiSEi sec. 31, T. 18 S., R. 21 w., just below Intake, at New MexicoArizona State line, 2| miles west of Vlrden.

Records available.- February 1939 to September 1940.

Extremes.- Maximum discharge during year, 25 second-feet Mar. 17 (gag<? height, 1.53 

feet), from rating curve extended above 11 second-feet by logarithmic plotting; no 

flow at times.

1939-40: Maximum discharge, that of Mar. 17, 1940; no flow at times.

Remarks.- Records fair except those estimated, which are poor. Discharge represents 

waste from Sunset canal to Glla River by way of Carlyle Canyon. Intake of wasteway 

Is between gaging station on Sunset canal above New Mexico-Arizona State line and 

the State line.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

28

24

25

26

27

28

29

30

31

Oct.

0.2

0

0

0

0

0

1.7 0"

0

0

0

7.8

8.9

7.8

1.5

.1

0

.4

3.4

2.2

.1

4.4

.9

.4

4.1

.3

0

.1

0

0

0

 ov.

0

0

0

0

0

0

0

0

0

1.0

3.5

1.7

4.7

4.8

3.5

.2

.5

2.6

2.0

.8

.9

.2

1.9

.4

1.2

.2

2.8

3.3

6.5

.2

-

Dec.

0

0

0

0

2.2

7.2

6.6

6.2

6.6

3.8

3.4

5.6

5.1

5.4

4.7

1.5

0

0

.3

.3

1.3

3.0

4.7

S.7

7.6

7.2

2.S

2.2

4.4

3.7

3.1

Jan.

0

0

0

0

0

5.2

.7

.4

.3

.2

.3

.6

.4

.4

.1

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

2.5

s.o

3.2

4.0

1.7

0

7.8

2.0

1.0

8.3

11

0

0

0

.6

1.9

0

_

-

Month

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

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

Hay. ............................... .

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

Water year 1939-4

Mar.

0.8

2.2

1.1

3.4

1.4

0

.1

0

4.6

4.8

1.0

.3

.2

0

.2

.3

1.0

6.2

2.3

0

1.2

.2

.1

1.0

2.9

.8

3.6

2.1

1.4

.9

0

Apr.

1.8

.3

1.6

5.1

1.2

1.5

.2

.3

.6

.1

.5

1.1

4.7

2.9

2.1

*.8

2.8

.8

.4

1.3

2.0

3.8

5.3

5.0

9.5

6.3

6.0

4.1

.S

1.2

~

Secondfoot-days

44.3

42.9

107.8

-

6.6

52.0

44.3

74.1

54.4

15.3

21.2

44.6

41.5

551.0

Hay

0.1

.4

.4

.2

.2

1.2

4.8

5.4

2.7

.4

.2

.1

0

5.1

5.0

3.S

2.4

3.9

1.1

.3

0

.1

0

1.3

4.4

7.0

3.2

0

.6

.1

0

MnT^nmifl

S.9

6.5

8.7

-

5.2

11

6.2

9.5

7.0

2.9

3*2

4.3

5.3

11

June

0.5

.9

1.2

.9

0

0

0

0

.2

1.4

.1

0

0

0

0

0

0

0

0

0

0

0

.2

1.3

.3

.2

.4

2.1

2.7

2.9

~

Jily

2.4

.2

.3

1.2

.2

g 9

i!e

2.3

.1

0

.4

0

0

0

0

.2

0

0

0

0

0

0

0

.1

1.7

1.1

.2

.2

.9

2.0

3.2

Minimum

0

0

0

-

0

0

0

.1

0

0

0

0

0

0

Aug.

4.3

f3.6

0

2.2

1.2

2.1

.8

2.7

3.4

2.7

fl.O

f.l

f.l

3.0

3.2

3.0

f2.5

a2.5

a2

0

.6

.6

0

0

0

.4

1.6

f.8

fO

fO

fO

Mean

1.43

1.43

3.4S

-

.26

1.79

1.43

2.47

1.75

.51

.68

1.44

1.38

1.51

Sept.

0

.2

1.7

1.3

.2

f.3

1.0

2.4

3.4

2.6

.5

.4

.1

.1

0

1.7

.3

.7

0

0

0

1.9

5.0

4.2

5.3

1.2

.7

1.7

2.2

2.4

~

Run-off in 

aore-feet

S3

S5

214

-

17

103

88

147

108

30

42

88

82

1,090

a Ho gage-height record; discharge estimated, 

f Computed from partly estimated gage heigtit.

9-232 February 1936

TOUTED STATES DEPAPI"HENT OF THE IHTERIOR 

Oeclog al Surrey
238 GILA RIVER BASIN

Moddle canal near Virden, N. Hex.

Location.- Water-stage recorder and concrete control, lat. 32°40', long. 10B°59', in 

SWtNWt sec. 11, T. 19 S., R. 21 W., half a mile downstream from Intake, 1J- miles 

southeast of Virden, and about 8 miles ^southeast of Duncan, Ariz.

Records available.- October 1914 to September 1915, July 1922 to September 1931, and 

January 1939 to September 1940 in reports of Geological Survey. January 1936 to 

December 1938 in files in office of Glla Water Commissioner, appointed b;' United 

States District Court for Arizona.

Extremes.- Maximum discharge during year, 148 second-feet Aug. 2 (gage height, 2.45 

feet), from rating curve extended above 60 second-feet by logarithmic plotting; no 

flow at times.

1939-40: Maximum discharge, that of Aug. 2, 1940; no flow at times.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are poor. Canal diverts from left bank of Gila River in NWiSEt sec. 11, T. 19 S., 

R. 21 W., for irrigation In Virden Valley. No diversions between intake and station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

S

6

7

8

9

10

11

18

13

14

IS

16

17

18

19

20

21

US

89

84

85

86

87

88

89

SO

31

Oct.

4.0

9.8

15

15

12

9.4

10

27

0

0

0

0

0

0

0

0

0

0

0

5.2

22

26

30

26

26

32

32

33

15

4.2

28

»OV.

33

34

35

36

f22

f!6

15

16

19

20

21

20

19

19

19

19

19

18

19

18

18

18

19

20

SO

20

12

4.6

7.2

11

-

Dec.

12

7.8

1.8

1.0

.6

.6

.6

6.1

9.8

9.8

9.8

8.8

8.8

9.1

9.4

9.8

9.4

9.4

13

19

19

18

IS

18

6.5

0

.2

12

20

21

15

Jan.

0

0

.1

1.3

1.6

3.1

2.7

1.8

1.6

1.4

3.6

5.6

2.4

3.3

3.5

3.5

2.9

2.4

2.4

2.4

2.9

2.2

2.7

3.8

3.5

3.1

2.9

3.3

2.7

2.0

2.0

Feb.

3.3

7.2

5.2

3.5

4.6

1.1

.2

0

0

0

0

0

0

0

0

7.9

33

34

30

28

26

28

28

0

5.0

18

8.3

3.0

5.4

-

lonth

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

Ifesv ........ ........

Water year 1939-4 0..... .................

Mar.

11

25

22

34

45

41

37

34

30

30

35

44

32

f21

f!7

f26

42

37

37

41

39

38

35

24

25

26

26

26

24

24

24

Apr.

23

22

22

22

30

35

34

33

34

40

36

36

35

35

35

34

36

36

41

44

41

33

28

36

3S

39

38

36

36

35

-

Seoondfoot-days

304.3

5,159.3

769.0

6,218.7

May

34

33

31

31

30

28

28

28

27

24

21

22

25

25

24

23

24

27

29

28

28

23

22

25

25

25

24

23

20

17

16

Ifffiy^TmlMI

21

56

34

42

45

June

17

16

13

10

8.4

5.1

4.3

4.0

3.3

3.1

2.9

2.7

2.4

2.2

2.4

2.2

2.2

1.8

1.3

1.0

1.0

4.6

30

44

30

23

21

22

18

17

-

July

19

32

9.9

0

9.8

9.4

6.5

4.0

2.7

2.0

1.3

1.3

1.0

.7

13

f!2

f2.5

1.4

1.3

1.3

1.0

.8

1.0

12

21

3.5

11

23

fl

4.0

22

lHT»<Hfl-flB

0

0

0

0

lug.

f24

f23

0

0

9.3

37

35

42

33

26

27

34

41

f37

f38

35

f34

f33

f32

32

31

42

18

21

28

18

18

f9

5.9

4.0

1.8

Mean

9.82

14.1

24.8

17.0

Sept.

10

.6

3.7

7.2

4.8

13

0

0

23

2S

22

19

34

30

25

23

18

17

16

17

14

12

26

28

22

is

15

14

19

29

-

Run-off In 

acre-feet

604

10,240

152

1,530

12,340

f Fragmentary gage-height record; discharge computed from partly or wholly estimated gage-height 

graph.

9-898 February 1936

UNITED STATES DEMTMEHT OF THE IHTERIOR 

Oeolo, jal Surrey
GILA RIVER BASIN 

Mbddle canal at New Mexico-Arizona State line, near Vird-?n, N. Mex.

239

Location.- Water-stage recorder and 4-foot concrete Parshall flume, lat. 32°41', long. 

109"02', In NEiSEi sec. 6, T. 19 S., R. 21 W., about 500 feet upstream from New 

Mexico-Arizona State line, about 2| miles west of Vlrden, and about 4& miles southeast 

of Duncan, Arlz.

Records available.- February 1939 to September 1940.

Extremes.- Maximum discharge during year, 60 second-feet Oct. 7 (gag° height, 2.27 feet), 

from rating curve extended above 26 second-feet by logarithmic plotting; no flow at 

times.

1939-40: Maximum discharge, that of Oct. 7, 1939; no flow at times.

Remarks.- Records good. Canal diverts from left bank of Glla River In NWiSEi sec. 11, 

T. 19 S., R. 21 W., for Irrigation In Vlrden Valley. Many diversions above and below 

station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

8

3

4

S

6

7

a

9

10

11

18

IS

14

IS

16

17

18

19

20

81

88

83

84

85

86

27

28

29

30

31

Oct.

1.2

5.8

10

S.5

6.9

4.8

8.1

0

0

0

0

0

0

0

0

0

0

0

0

7.2

20

14

15

13

16

17

8.9

2.3

0

O

3.4

HOT.

7.1

7.1

6.7

4.9

3.1

6.7

10

10

6.7

5.7

5.7

5.5

4.6

4.0

4.0

5.1

6.9

8.1

7.5

7.3

9.4

12

13

10

8.3

2.7

1.4

1.4

3.4

1.8

-

Dec.

0.9

1.1

.9

.8

.3

.3

.3

3.2

5.3

3.2

3.2

3.1

2.6

4.8

5.9

8.5

9.4

9.4

11

15

15

15

12

6.9

2.0

0

0

2.6

9.1

13

9.8

Jan.

0.1

0

0

0

0

0

0

0

0

0

0

.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

0

.6

1.6

5.1

1.1

.4

0

0

0

0

0

0

0

0

0

7.0

11

14

18

15

12

0

0

0

0

0

0

0

-

-

Month

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

RoYenber . .................................

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

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

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

JUy......................................

Water year 1939-40..... .................

Mar.

0

11

15

18

24

27

30

26

20

14

9.8

7.5

6.5

9.6

12

15

17

15

13

15

16

11

5.3

3.7

1.1

.2

8.8

10

4.6

10

14

Apr.

13

11

8.7

13

15

22

15

13

15

13

15

11

4.6

9.1

13

10

13

19

23

21

10

2.0

6.4

15

18

18

16

15

13

13

-

Seoondfoot-days

162.1

190.1

174.6

-

.7

85.8

392.1

403.8

241.1

125*3

67.7

300.0

238.3

2,381.6

May

15

12

15

14

10

10

7.9

9.4

7.7

2.9

4.8

3.4

1.9

S.5

6.5

8.9

7.2

6.9

6.9

12

6.5

2.2

5.8

5.7

2.4

1.5

4.5

12

9.3

9.3

11

Ka-^mm

20

13

15

-

.6

18

30

23

15 '

Oi fci.

19

22

21

30

June

12

10

6.5

6.5

3.8

.8

.5

.2

0

0

0

0

0

0

.0

0

0

0

0

0

0

0

21

20

15

7.6

2.9

5.7

6.1

6.7

-

July

5.3

5.2

.7

0

3.2

3.7

1.6

1.7

0

0

0

0

0

0

0

2.9

0

0

0

.8

0

0

0

2.8

13

1.0

.3

2.9

3.6

0

19

Minimm

0

1.4

0

-

0

0

0

2.0

1.5

0

0

0

0

0

Aug.

14

15

0

0

0

6.4

19

18

16

16

12

7.5

22

14

11

12

4.8

13

13

20

15

19

7.2

5.6

f!6

fO

fl.6

1.9

0

0

0

Mean

5.23

6.34

5.63

-

.02

2.96

12.6

13.5

7.78

4.18

2 .18

9.68

7.94

6.51

Sept.

0.9

0

.1

2.8

2.2

.1

0

0

8.9

18

15

17

18

17

18

21

19

15

14

13

5.9

.3

.7

1.2

2.2

3.6

6.1

5.1

7.1

6.3

-

Run-off in 

acre-feet

322

377

346

-

1.4

170

77S

801

478

249

134

595

473

4,720

f Computed from partly estimated gage height.

9-232 February 1936

UHITKD STATES DEPARTMENT OF THE INTERIOR 

Oeelc cal Surrey
240 GILA RIVER BASIN

Shriver canal at Virden, N. Hex.

Location.- Water^stage recorder and concrete control, lat. 32°40', long. 109°00', in 

dtSEt sec. 3, T. 19 S., R. 21 W., a quarter of a mile downstream from heading, 1 mile 

southeast of Virden, N. Mex., and about 9 miles southeast of Duncan, Ariz.

Records available.- January 1939 to September 1940.

Extremes.- 1939: Maximum discharge during period January to September, 14 seiond-feet 

Aug. 3 (gage height, 1.60 feet), from rating curve extended above 6 second-feet by 

logarithmic plotting; no flow at times.

1939-40: Maximum discharge during water year, 29 second-feet Oct. 8, f~om rating 

curve extended above 6 second-feet by logarithmic plotting; maximum gage height, about 

3.6 feet Sept. 6; no flow at time's.

Remarks.- Records fair except those for periods of fragmentary gage-height record, which 

are poor. Canal diverts water from left bank of Glla River for Irrigation on lands in 

New Mexico.

Discharge, In second-feet, 1939-40

D«T

1

2

S

4 

5

6

7

S

9

10

11

12

IS

14

15

16

17ie

19

20

21

22

23

24

26

26

27

28

29

SO

51

Oct. Nor. Dee. Jan. Feb.

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.8

4.4

4.8

2.1

0

0

0

0

-

-

-

Mar.

0

0

0

0

0 

1.9

3.5

3.4

3.2

2.7

2.3

2.4

1.9

1.1

1.0

1.0

.9

.8

.8

.8

3.0

4.4

5.4

5.1

4.6

4.4

3.9

5.1

4.4

3.8

2.7

Apr.

2.1

1.9

2.3

2.5

2.5

2.1

1.8

1.2

2.0

1.2

0

0

2.9

5.6

5.6

6.4 6.-1

5.8

5.9

5.6

4.4

3.4

4.2

3.9

5.2

4.8

5.4

5.9

6.4

-

««y

6.4

6.5

5.9

5.2

5.0

3.8

2.9

3.2

3.4

3.2

4.6

4.0

3.8

4.4

4.9

5.0

4.9

3.8

3.6

3.6

3.5

4.6

3.8

3.0

2.6

2.3

2.4

2.5

2.7

2.7

June

2.4

2.2

2.2

2.2

2.0

2.4

2.1

2.1

2.5

2.7

2.6

2.

2.

2.

2.

2.

2.

2.

2.

2.6

2.5

2.5

2.4

2.2

1.9

.7

.4

1.3

1.2

-

July

1.1

1.1

1.2

1.3

1.3

1.3

1.2

1.2

1.3

1.4

1.2

1.2

1.1

1.1

.9

4.3

3.4

1.6

1.6

1.8

1.7

1.9

1.9

2.3

3.8

3.1

2.2

2.1

2.1

2.6

Aug.

2.8

4.9

10

4.3

5.4

5.1

3.6

3.7

4.5

2.2

1.3

3.3

6.7

4.8

5.1

4.1

2.9

7.1

6.0

4.1

3.1

3.5

4.0

4.7

6.1

5.6

5.6

4.4

2.6

2.5

Sept.

2.5

a2.3

a2.2

a2.0

2.3

1.6

.5

.1

0

.1

.2

.2

.2

1.8

0

.6

.9

.1

.1

0

0

.1

0

0

0

0

0

.4

.6

-

a No gage-height record; discharge Interpolated.

9-258 September 1937

TOUTED STATES DKPARTHEHT OF THE INTERIOR 

Oeolc cal Surrey
GILA RIVER BASIN 241

Discharge, In second-feet, of Shrlver canal at Vlrden, H. Hex., 1939-40 Continued

1939-40

Apr. July Aug. Sept.

0.9 

.8 

.8

1.0

2.2

11

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

fO 

fO

0

0

0

1.4

3.9 

2.7 

1.5 

.5 

0

0

.7 

1.8 

1.8 

1.7

2.2 

6.1 

6.8 

6.0 

4.9

4.5 

4.4 

2.2

.2

.3

1.5

2.4

1.7

1.6

1.4

1.1

.6

.4

.3

0.1

0

0

0

0

1.6 

2.9

1.4 

1.2 

2.0

4.9 

4.8 

4.7

4.4

4.6

4.7 

4.2 

4.4

4.4 

4.2 

4.0 

5.3 

6.0

5.3 

4,4

3.2 

2.7 

1.7

1.6 

4.2

4.6

4.7 

2.1

1.1 

2.9 

4.1 

4.5 

4.0

3.4 

4.0 

5.0 

5.6 

5.3

4.7 

5.2 

5.8 

5.8 

5.8

5.8 

5.3 

3.4 

2.3

2.1

2.2

1.1

1.1

.6

.4

1.7

3.0 

2.9 

2.7 

2.5 

2.9

3.3 

3.2 

3.2 

2.9

2.7

2.8 

2.0 

.1 

2.0 

3.1

1.2 

.7 

.1

0

0

.8 

3.2 

2.0 

1.2 

1.0

1.6 

2.3 

3.7 

3.5 

1.6

.5

1.3 

2.1

2.0

2.0

2.1 

2.0 

3.0

.6 

1.5

2.3

2.4 

2.1

1.5 

2.3 

2.7 

2.1

1.6

1.7 

2.3 

1.7 

2.1 

fl.l 

1.0

f2.8 

f2.6 

fO

f.8 

fl.4

1.4 

2.4 

3.4 

fl.5 

f.5

f.3

fl.3

.3

2.9 

f4.1

fE.O 

fl.O

f.S 

fO

0

.2 

1.1 

3.6

.7 

0

0

0

1.6

2.5

1.3 

1.1 

1.0 

1.5

f5 

0 

0

f Fragmentary gage-height record; 

heights.

discharge computed from partly or wholly estimated gage

Monthly discharge, In second-feet, 1939-40

Secondfoot-days

Run-off In 

aere-faet

January 1939 ........

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

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

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

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

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

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

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

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

The period.........

October 1939 ........

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

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

Calendar year 1939

January 1940 ........

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

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

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

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

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

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

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

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

Water year 1939-40

0

14.1

74.5

109.5

122.8

66.8

55.4

138.7

20.6

18.7

1.2

0

622.3

0

3.4

64.2

79.6

122.8

54.4

57.7

40.4

12.9

0

4.8

5.4

6.4

6.5

2.7

4.3

10

2.5

11

0

1.4

6.8

6.0

5.8

3.3

3.7

4.1

5

0

0

0

0

2.3

.4

.9

1.3

0

0

0

0

0

1.1

0

.5

0

0

0

.50

2.40

3.65

3.96

2.23

1.79

4.47

.69

.60 

.04

1.70

0

.12 

2.07 

2.65 

3.S 

1.81 

1.86 

1.30

.43

0

28

148

217

244

132

110

275

41

1,200

37

2.4

0

1,230

0

6.7

127

158

244

108

114

BO

26

455.3 11 1.24 903
242 GILA RIVER BASIN 

Valley canal near Virden, N. Mex.

Location.- Water-stage recorder and 4-foot concrete Parshall flume, lat. 32°41', long. 

109 U 01', in SWiSW$ sec. 32, T. 18 S., R. 21 w., 1J miles downstream from.intake, about 

2i miles west of Virden, and about 44 miles southeast of Duncan, Ariz.

Records available.- October 1914 to September 1915, July 1923 to September 1S31, and May 

1939 to September 1940 in reports of Geological Survey. January 1936 to lecember 1938 

(at site about half a mile downstream and below wasteways) in files in office of Gila 

Water Commissioner, appointed by United States District Court for Arizona.

Extremes.- Maximum discharge during year, 66 second-feet Oct. 7 (gage height, 2.24 feet); 

no flow at times.

1939-40: Maximum discharge, 95 second-feet Aug. 5, 1939 (gage height, 2.87 feet); 

no flow at times.

Remarks.- Records good. Canal diverts from right bank of Gila River In NEiNWj sec. 4, 

T. la S., R. 21 W. (New Mexico), for irrigation in Duncan Valley in Arizona.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

?.

Z

4

5

6

7

8

9

1U

11

18

13

14

15

16

17

18

19

20

21

22

2S

84

25

26

87

28

29

SO

31

Oct.

1.7

2.1

3.2

4.0

4.5

4.H

17

6.5

0

0

0

.4

1.8

.9

.6

.8

.6

1.9

1.4

.9

.1

0

0

.2

3.0

2.3

1.3

.5

.4

.2

.5

HOT.

0

.4

.8

3.7

6.4

8.2

8.2

9.0

16

21

24

28

14

9.3

20

22

23

24

25

25

28

19

18

23

25

26

30

32

33

35

-

Dec.

35

36

36

35

27

24

28

30

33

35

14

3.2

6.2

11

13

13

13 '14

13

12

12

19

24

24

15

.5

27

43

38

36

37

Jan.

17

0

0

0

0

0

0

.1

.2

13

21

22

25

29

30

31

31

31

32

33

32

32

26

12

12

11

10

12

9.7

9.0

8.8

Feb.

9.5

5.2

.1

0

0

0

0

0

8.3

16

15

14

13

13

12

12

10

9.9

12

13

13

12

2.8

0

5.9

13

11

13

17

-

-

Month

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

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

Water year 1939-40. .....................

Mar.

18

14

11

12

16

18

16

14

12

12

15

22

28

27

25

23

21

18

22

29

30

32

32

15

25

27

27

28

27

26

24

Apr.

24

24

23

22

21

20

20

19

19

17

20

23

22

21

21

20

21

21

22

20

18

20

21

22

23

22

20

21

20

17

-

Seoondfoot-days

706.9

_

624

500.0

314.5

4,845.1

May

15

14

15

12

11

11

11

12

12

11

9.0

10

14

16

16

15

15

21

23

22

20

21

22

23

23

22

22

19

17

14

12

Ito-riimim

43

_

32

24

23

16

43

June

10

7.9

8.2

5.0

3.4

4.0

3.7

4.3

.5.2

4.6

3.6

5.4

3.6

2.7

2.8

2.8

3.7

4.3

3.0

2.1

4.0

4.8

6.8

3.8

1.1

1.0

3.6

.9

.2

0

-

July

0.1

1.5

3.6

4.0

1.8

3.6

3.8

3.2

3.4

2.7

2.4

1.8

1.9

1.6

3.8

6.1

2.7

1.4

1.2

3.2

3.2

2.2

1.2

2.9

8.4

4.3

6.4

8.2

13

13

8.8

Minimum

.5

_

17

9.0

1.4

0

Aug.

8.2

10

20

18

19

18

14

21

14

7.7

9.9

12

12

20

14

18

22

17

12

11

18

22

18

11

4.5

9.5

11

8.2

7.1

5.2

Mean

22.8

_

15 8

21 5°

20.8

16.1

10.5

13.2

Sept.

. 11

9.3

12

5.6

3.6

f!3

1.4

12

4.7

4.3

7.7

6.7

14

15

15

15

13

13

11

7.7

4.8

14

15

15

14

12

9.9

9.3

9.5

16

-

Run-off in 

acre-feet

1,400

_

972

1,240

992

624

9,600

f Computed from partly estimated gage height.

, -232 February 1936

UNITED STATES DEPARTMENT OP THE IHTERIOR 

Oeolot el Survey
GILA RIVER BASIN 243

San Francisco River near Glenwood, N. Hex.

Location.- Water-stage recorder, lat. 33°15'05" (revised), long. 10P°52'40", In NEiNWi 

sec. 23, T. 12 S., R, 20 W., a quarter of a mile upstream from tt« hot springs and 6 

miles south of Glenwood. Datum of gage is 4,552.06 feet above mean sea level (general 

adjustment of 1929).

Drainage area.- 1,660 square miles.

Records available.- October 1930 to February 1934 (at site 4i miles upstream ) and 

reoruary 1934 to September 1940 in reports of Geological Survey. October 1927 to 

December 1931 (at site 4i miles upstream) In reports of State engineer.

Average discharge.- 11 years (1928-31, 1932-40), 56.5 second-feet.

Extremes.- Maximum discharge during year, 6,000 second-feet July 25 (gage height, 7.32 

reet), from rating curve extended above 800 second-feet by logarithmic plotting; 

minimum dally, 11 second-feet July 17-20.

1930-40: Maximum discharge, that of July 25, 1940; maximum gage height, 8.16 feet 

Sept. 16, 1931, site and datum then In use; minimum daily discharge, 7.7 second-feet 

June 21, 1934.

Remarks.- Records fair except those for days of no gage-height, record, which are poor, 

inversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

e

3

4

5

6

7

8

9

10

11

18

IS

14

15

16

17

18

19

SO

21

W

23

84

85

26

27

28

29

90

31

Oct.

19

20

20

19

19

18

91

320

75

43

35

33

31

23

28

28

28

26

27

27

27

29

29

30

31

32

32

31

30

28

28

Hov.

29

28

28

28

28

27

27

27

29

30

29

29

27

26

26

26

27

26

26

26

26

26

26

28

29

28

28

28

34

31

-

Dec.

30

29

28

27

27

27

27

28

27

28

23

29

28

2S

28

28

27

27

27

27

27

27

28

28

32

32

30

24

22

23

24

Jan.

29

29

29

29

30

33

32

30

29

29

29

29

30

28

24

24

25

27

26

26

28

30

28

27

29

28

2S

27

27

26

26

Feb.

31

454

216

95

81

65

47

42

38

36

34

34

33

32

32

31

30

29

30

31

30

34

44

53

44

46

53

65

81

_

-

Month

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

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

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

Vay... ....................... .............

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

Water year 1939-4

Mar.

104

102

90

86

79

69

65

61

61

73

114

170

136

109

92

83

77

75

73

71

73

75

75

77

79

79

81

86

79

75

69

Apr.

65

67

63

53

49

47

46

44

38

32

32

33

36

38

38

33

34

31

31

29

34

36

37

34

32

30

32

37

38

35

Secondfoot-days

1,262

833

852

17,055.2

S71

1,876

2 , 638

1 189

965

586

1,703

6,401 

3,138

22,314

May

27

34

38

41

42

35

30

27

29

33

33

32

33

32

27

26

32

36

36

34

31

34

26

24

29

23

28

28

27

27

26

MmHumm

320

34

32

678

33

454

170

67

42

49

594

2,020 

506

2,020

June

24

20

18

16

16

14

15

16

14

13

13

12

14

16

13

15

16

16

15

15

16

15

34

26

22

23

22

22

46

49

-

July

41

31

25

20

19

16

15

16

16

16

13

12

12

15

13

17

11

11

11

11

13

15

16

14

594

450

107

46

33

36

38

Minimum

i J.On

26

22

9.2

24

29

61

£9

24

12

11

22

30

11

Aug.

268

1S6

75

214

90

49

130

44

29

22

88

41

728

532

2,020

170

353

94

89

337

a!30

96

84

77

118

84

66

56

48

42

41

Mean

40.7

27 8

27^5

43. 7

28.1

64.7

85.1

39 0 6

31*1

19.5 54 9

206

105

61.0

Sept.

44

44

51

42

263

506

164

77

a60

a45

a50

51

112

123

66

46

36

34

34

30

39

252

126

123

60

46

42

46

219

307

Run-off in 

acre-feet

2,500

1,650

1,690

33,820

1,730

5*230

2,360

1,910

1,160

3,380

12,700 

6,220

44,250

Peak discharge.- July 25 (8 p.m.) 6,000 sec.-ft.; Aug. 1 (8 p.m.) 3,320 sec.-ft.; Aug. 13 (9 

p.m. J 5,050 sec.-ft.; Aug. 15 (1 a.m.) 4,150 sec.-ft.; Aug. 15 (10 a.m.) 4,900 sec.-ft.; Sept. 5 

(5 p.m.) 1,890 sec.-ft.

a Ho gage-height record} discharge computed on basis of records for Glla River near Olla, near 

Red Rock, and at Hew Mexico-Arizona State line.
244 QILA. RIVER BASIN

San Francisco River at Clifton, Arlz.

Location.- Water-stage recorder, lat. 33°03'00", long. 109°17'45", In SWiSEi sec. 30, T. 

4. S., R. 30 E., at Railroad Boulevard bridge at Clifton. Datum of gage is 3,430.5 

feet above mean sea level (subject to correction for general adjustment of 1929).

Drainage area.- 2,790 square miles.

Records available.- July 1927 to October 1933, May 1935 to September 1940. October 1910 

to July 1918 (fragmentary) at several sites, none of which was more than £. miles 

upstream.

Average discharge.- 11 years (1927-33, 1935-40), 159 second-feet.

Extremes.- Maximum discharge during year, 8,700 second-feet Sept. 6 (gage height, 11.6 

feet); minimum, 17 second-feet (regulated) June 16, 17 (gage height, 2.14 feet).

1927-40: Maximum discharge, 12,400 second-feet Feb. 8, 1937 (gage height, 12.7 

feet); probably no flow at times in 1934; minimum discharge recorded, 8 second-feet 

June 18, 19, 1939.

Remarks.- Records good except those for period of unstable control, which are fair. 

Diversions above station for irrigation, mining, and municipal supply. During the 

year 51 discharge measurements were made.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

SO

83.

22

23

84

85

85

27

28

29

30

31

Oct.

37

36

35

35

35

35

123

1,150

224

109

7S

65

58

54

50

48

49

49

49

49

49

49

50

51

61

57

52

51

49

49

48

HOT.

4S

47

47

46

47

4S

49

50

55

58

59

57

53

54

54

54

55

55

55

54

53

53

58

60

66

64

63

62

72

80

-

Dec.

72

6S

66

63

58

59

60

62

59

54

58

63

63

63

63

62

62

63

63

59

62

62

64

63

78

95

77

71

64

58

57

Jan.

57

62

62

59

64

125

102

87

82

77

73

69

68

67

66

66

64

63

64

62

64

64

65

65

64

63

62

62

60

60

60

Feb.

117

2,120

1,270

466

2S2

236

188

156

137

130

US

115

112

105

103

101

96

92

89

87

84

87

180

254

166

137

146

152

158

-

-

Month

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

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

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

Water year 1939-40..... .................

Mar.

174

185

174

164

154

145

136

134

129

137

168

229

245

209

181

162

145

143

145

143

139

141

143

150

148

150

152

162

160

154

145

Apr.

136

141

134

122

109

109

106

103

99

96

93

89

87

85

88

89

94

90

83

78

75

79

85

88

85

78

75

75

79

78

-

Seoondfoot-days

2,934

1,676

1,991

35,293

2 128

7^484

4,946

2)036

1, 568

1^987

9,041 

6,569

45,188

May

76

67

68

74

74

76

73

66

63

65

66

65

59

64

62

58

58

60

66

66

63

74

93

73

65

65

59

58

56

53

51

Iffl-y^tmmi

1,150

80

95

1,150

125

O 1 gQ

245

141

93

266

477

2 150

2)450

2,450

June

48

46

45

40

35

33

31

29

28

27

27

25

24

23

26

21

22

26

27

27

28

47

192

109

72

57

49

40

98

266

~

July

101

74

57

47

41

39

34

29

28

26

28

27

23

22

26

27

29

28

24

23

22

24

28

47

41

477

256

124

90

74

69

Minimum

35

46

54

12

57

84

129

75

51

PTci. 2°

55

60

21

Aug.

65

292

145

172

307

126

150

136

82

68

60

9S

78

1,300

2,150

543

395

227

136

631

272

190

212

198

296

253

149

112

81

62

55

Kean

94.6

55-9

64.2

96.7

68 6

160

94.3

65-7

52.3

54.1

292

219

123

Sept.

273

119

94

70

104

2,450

461

245

130

070

065

060

070

0110

ollO

c85

76

75

80

70

74

161

225

156

142

99

87

80

204

524

-

Run-off in 

ao re-feet

5,820

3,320

3,950

69.99O

4,220

14 840

9 * 810

5,610

4,040

3,110

3,940 

17,930

13,030

89,620

Peak discharge.- Oct. 8 (4 a.m.) 3,480 sec.-ft.; Feb. 2 (7 a.m.) 2,920 sec.-ft.j AUIT. 14 (6i30 

a.m.) 3,850 sec.-ft.; Aug. 15 (7 p.m.) 3,750 sec.-ft.; Aug. 15 (6 a.m.) 3,290 sec.-ft.; Sept. 6 

(10:30 a.m.) 8,700 sec.-ft.

o Control unstable.

( -238 February 1936

UNITED STATES DEPARTMENT OF TEE IHTHRIOR 

Oeolog al Surrey
GILA RIVER BASIN 

San Simon Creek near San Simon, Ariz.

245

Location.- Water-stage recorder, lat. 32°13', long. 109°10', in SWi sec. 10, T. 14 S., 

K. 31 E., 4i miles southeast of San Simon.

Drainage area.- 803 square miles.

Records available.- June 1931 to October 1933, May 1935 to September 1940. August 1919 

to September 1925, at site 3i miles downstream.

Average discharge.- 13 years (1919-25, 1931-33, 1935-40), 5.3 seconcJ-feet.

Extremes.- Maximum discharge during year, 4,500 second-feet June 29 (gage height, 10.9 

feet), from rating curve extended above 400 second-feet on basis of slope-area 

measurements at 1,900 and 2,250 second-feet; no flow during most of year.

1919-25, 1931-40: Maximum discharge, 5,350 second-feet July £1, 1923; no flow 

during most of each year.

Remarks.- Records fair. Small diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to Septeobn? 1940

Day

1

f.3

4

5

6

7

8

9

10

11

18

IS

14

15

16

17

1ft

19

20

81

f.P.

23

84

25

86

27

28

29

SO

31

Oct.

0

0

0

0

0

0

17

9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

3

1

2

0

0

0

0

0

MOT.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

17

0

0

0

0

0

0

171

0

0

0

17

0

-

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5

17

0

0

0

0

0

0

Jan.

0

0

0

0

4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

39

3

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

-

-

Month

Calendar year 1939......................

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

Water year 1939-4

Mar. Apr.

0

0

0

0

4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5

0

0

0

0

0

0

0

-

Seoondfoot-days

33'

52

22

1,188

9

OnO

911

3,091

*ay

FfflTrlmufli

17

17

17

310

5

25V

OQQ

529

692

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

38

30

19

2

0

692

21

-

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

257

6

23

1

ie

0

0

0

If^yi^Bpim

c

c

c

c

c

c

c

c

Aug.

0

2

76

223

19

0

94

7

0

0

0

0

0

298

174

18

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

1.1

1.7

.7

3.3

.1

1.4

0

.3

26.7

30.4

8.4

Sept.

0

0

3

0

0

20

0

0

0

0

0

0

0

0

0

0

0

20

32

0

290

529

17

0

0

0

0

0

0

0

-

Run-off in 

acre-feet

65

103

44

2,350

7.9

83

0

18

1,590

1,810

6,140

Peak discharge.- June 29 (6 p.m.) 4,500 sec.-ft.; July 24 (5t30 p.m.) 2,ICO sec.-ft. ; 

(9r30 p.m.) 1,060 sec.-ft.; Aug. 7 (8p.m.) 1,260 sec.-ft.; Sept. 21 (10t30 p.m.) 2,440 

Sept. 22 (7:30 a.m.) 1,300 sec.-ft.

,m.) 2,ICO sec.-ft.; Aug.

- " ~ % " "" sec.-ft.;

9-232 February 1936

UNITED STATES DEPAPTffiNT OF THE INTERIOR 

Oeolog il Survey
246 OILA. RIVER- BASIN

San Simon Creek near SolomonsvlHe, Arlz.

Location.- Water-stage recorder, lat. 32°48', long. 109°38', In NWiNEi sec. 2o, T. 7 S., 

R. 26 E., 1 mile southwest of SolomonsvlHe and 24 miles upstream from mouth. Datum 

of gage Is 2,960.15 feet above mean sea level (general adjustment of 1929).

Drainage area.- 2,280 square miles.

Records available.- June 1931 to September 1932, May 1935 to September 1940.

Extremes.- Maximum discharge during year, 6,080 second-feet Sept. 5 (gage height, 11.0 

feet); no flow on many days.

1931-40: 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 fair except those below 10 second-feet, which are poor. Small diversions 

above station for irrigation. Records do not Include waste water from San Jose canal, 

which diverts from 01la River.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

80

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

0

0

0

0

140

782

SO

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

28

0

0

0

0

0

0

HOT.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

53

0

0

0

0

0

0

0

0

0

0

0

117

a6

-

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7

0

0

0

0

0

0

Jan. Feb.

0

224

27

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

.

-

Month

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

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

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

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

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

Water year 1939-4 0.............. ........

Mar. Apr.

Seoondfoot-days

1,030

176

7

2,837

0

251

0

0

0

601

421

1,751 

1,883

6,120

May

H^TTf pn«n

782

117

7

782

0

224

0

0

0

460

216 

292

466

782

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

25

106

10

0

0

0

0

0

460

-

July

33

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

216

126

46

0

0

0

0

!Hy»^<mim

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

4

7

96

292

249

al6

1

0

10

0

41

1

95

207

143

254

74

41

al

0

0

141

18

1

5

2

0

0

0

0

52

Mean

3T..2

5.9

.2

T.8

0

F-7

P

P

0

20 "Q

IT. 6

5P-5

er.e

16.7

Sept.

67

0

0

0

466

222

0

0

0

0

0

0

0

0

0

0

0

1

0

4

80

211

462

79

7

0

0

46

11

227

-

Rim-off in 

acre-feet

2,040

349

14

5,620

0

498

0

0

0

1 ,.LVU 1 oft

855

3,470

3,750

12,130

Peak discharge.- Oct. 8 (4:05 a.m.) 1,660 sec.-ft.; June 30 (10:30 a.m.) 2,410 sec.-ft.; Sept. 

5 HO:50 p.m.) 6,080 sec.-ft.j Sept. 22 (7:00 p.m.) 895 sec.-ft.j Sept. 23 (5:15 a.m.) 720 sec.-ft.

a No gage-height record; discharge computed on basis of record for preceding and following days, 

weather records, and engineers' notes.

 ..232 February 1936

UNITED STATES DEPAPTIENT OF THE INTERIOR 

Qeolog al Surrey
QILA RIVER BASIN 247

San Carlos River near Peridot, Arlz.

Location.- Water-stage recorder, lat. 33°16', long. 110°26', In sec. 7, T. 2 S., R. 19 E., 

unsurveyed, on San Carlos Indian Reservation, at railroad bridge at head of San Carlos 

Reservoir, 2 miles south of Peridot. Datum of gage Is 2,506.6 feet above mean sea 

level (Southern Pacific Railroad bench mark).

Drainage area.- 1,070 square miles.

Records available.- March 1989 to September 1940. August 1910 to January 1911, April 1914 

to September 1915 (fragmentary), at site 5i miles downstream.

Average discharge.- 11 years, 48.3 second-feet.

Extremes.- Maximum discharge during year, 6,000 second-feet Aug. 3 (gage height, 6.70 

feet); no flow June 15-17.

1929-40: Maximum discharge, 29,400 second-feet Feb. 7, 1937 (gf?e height, 10.7 

feet), from rating curve extended above 15,000 second-feet on basis of records of Inflow of San Carlos Reservoir; no flow on several days of most years.

Remarks.- Records good except those for periods of unstable control, which are fair, and 

those for periods of no gage-height record, which are poor. Small diversions above 

station for Irrigation. During the year 40 discharge measurements were made.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

8 

3

4 

S

6

7

a

9 

10

11

12 

13 

14 

IS

16 

17 

18 

19 

80

SO. 

28 

83 

24 

85

26 

87 

28 

89 

30 

31

Oct.

2 

2 

2 

2 

2

2 

3 

75 

25 

10

6 

4 

3 

3 

3

3 

2 

2

1 

1

1 

2 

2 

2 

2

3 

3 

3 

4 

4 

4

Nov.

4 

2

1 

1 

2

2 

2 

2

4 

7

8 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

7

e

8 

8

7 

7 

S 

113 

23

Dec.

12 

10 

S 

8 

8

8 

S 

8

e

10 

10

g

s

8 

8

g

9

g 

g 

g

10 

10 

10 

10 

15

25 

21 

20 

17 

14 

14

Jan.

12 

12 

11 

11 

12

SS 

55 

32 

23 

21

20

20 

20 

61 

40

37 

29 

24 

20 

16

14 

12 

10

g

S

a8 

a8 

as 

a7 

a7 

a7

Feb.

90 

ol,370 

o480 

146 

68

48 

39 

32 

26 

25

22 

16 

16 

13 

12

10 

8 

7 

6 

S

g 

g 

11

C60 

55

a50 

a 40 

a30 

a25

Month

Oot 

lov 

Dec

C

Jan 

Fob 

Mar 

Apr

Jtn 

fcl 

Aug

Sep

«

wmlmv-,..,,.., ............. , ..

nary

ust........ . . .

ater year 1939-4

Peak dlacharee.-

a No gage-height

10... ...................

Mar.

23 

20 

16 

IE 

13

12 

10 

S 

8 

10

12 

12 

12 

11 

12

12 

10 

10 

10 

10

S 

8 

S 

8 

S

10 

10

S

s 

s 

e

Apr.

S 

8 

7 

6 

8

S 

6 

6 

5 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

5

4 

3 

3 

3 

2

a2 

a£ 

a2 

a2 

a2

Seoondfoot-days

183 

284 

342

9,5O8.5

662 

2,731 

338 

152 

33.0 

226.5 

589.5 

1,763 

688

7,997.0

May

2 

2 

2 

2 

2

2

2 

2

1 

1

1 

.5 

.5 

.5 

a. 5

a. 5 

a. 5 

a. 5 

a. 5 

a. 5

1 

2 

1 

.5 

.5

a. 5 

a. 5 

a. 5 

al 

al 

al

Maximum

75 

113 

25

1,150

8S 

1,370 

23 

8 

2 

130 

228 

580 

350

1,370

June

1 

.5 

.5 

.5

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

0

0 

0 

 5

1 

1

8 

.5 

o30 

olSO 

c40

a4 

a2

al 

al 

a. 5

Jily

0.5 

.E 

a. 5 

a. 5 

a. 5

a. 5 

a. 5 

a. 5 

a.5 

a. 5

.5 

a.5 

a.5 

a.E 

a.5

228 

4

1 

1 

1

1 

.5 

.5 

olSO 

0150

S_ 

2 

2

1 

1 

1

Aug.

1 

27

cseo

0200 

238

alO 

a4 

a3 

a3 

a2

2 

2 

2 

1 

20

a3

8,2

al

al 

3

1 

1 

0260 

0270 

ollO

a5 

a4 

a3 

a3 

a3 

a3

MinijnuBi Mean

1 5.9 

1 9.5 ' 

8 11.0

.5 26.1

7 21.4 

6 94.2 

8 10.9 

2 5.1 

.5 1.06 

0 7-55 

.5 19.0 

1 57.0 

2 22.9

0 21.8

Sept.

9 

6 

66 

21

S

48 

14

4 

3 

3

3 

18 

S 

4 

3

4

4 

6 

4 

6

3 

7 

9 

7 

7

3 

2 

4 

C35O 

55

Run-off in 

acre-feet

363 

563 

678

18,870

1,310 

5,420 

670 

301 

65 

449 

1,170 

3,510 

1,360

15,360

Feb. 2 (7(30 a.m.) 2,860 sec. -ft.} Aug. 3 (8 p.m.) 6,000 sic. -ft. 

record; discharge computed on basis of diacharge measurementa, partial gage-

_ . ecord for preceding and following days, and weather records, 

o Unstable control.

9-838 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolot al Surrey
248 GILA RIVER BASIN 

San Pedro River at Palomlnas, Arlz.

Location.- Water-stage recorder, lat. 31°23', long. 110°07', in SEi sec. 33- T. 23 3., R. 

22 E., at bridge half a mile east of Palominas, 4 miles downstream from international 

boundary, and 12 miles southwest of Bisbee. Datum lowered 4.20 feet Oct. 10, 1939.

Drainage area.- 741 square miles (revised), of which 649 square miles are in Mexico. 

Records available.- May 1930 to October 1933, May 1935 to September 1940.

Extremes.*- Maximum discharge during year, 22,000 second-feet Aug. 14 (gage height, 16.45 

feet), by slope-area method; minimum, 0.5 second-foot June 19.

1930-40: Maximum discharge, that of Aug..14, 1940; no flow June 29, July 1, 1930.

Maximum stage known, about 24.2 feet, present datum, from floodmarks, Sept. 28, 1926 

(discharge not determined).

Remarks.- Records good except those above 1,000 second-feet, which are fair, 

sions above station in Arizona and probably none in Mexico.

No diverDischarge, in second-feet, water year October 1939 to September 1940

Day

1 

S 

3

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

20

21 

28 

83 

84 

25

86 

27 

28 

29 

30 

31

Oct.

6 

6 

6 

6 

6

6 

8 

10 

8 

7

6 

6 

6 

6 

5

6 

6 

6

5 

5

5 

5 

5 

5 

5

5 

4 

4 

4 

4 

4

HOT.

4 

4. 

4 

4 

4

4 

4 

5 

5

5

4 

5 

4 

5 

5

5 

6 

6 

6 

6

6 

6 

6 

8 

1

7 

7 

7 

10 

10

Dec.

8 

7 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

8

7 

7 

7 

7

7 

7

Jan.

7 

7 

7 

7 

9

12 

10 

8

8 

7

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

7 

7 

6 

6

6 

6 

6 

7 

7 

7

Feb.

10

53 

19 

12 

9

8 

8 

7 

7 

7

7 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

11 

40 

15 

10

8 

8 

8 

7

Month

Got 

HOM 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

uary

ater year 1939-4

liar.

7 

7 

7 

7 

6

6 

6

5 

5 

5

4 

4 

4 

4 

4

4 

4 

4 

4 

4

4 

4 

4 

3 

4

3 

3 

3 

4 

4 

4

Apr.

3 

4 

4 

4 

4

4 

4

4 

4 

4

4 

3 

3 

3 

3

3 

3 

3 

2

2 

2 

3 

3 

3

3 

3 

3 

3 

3

Seoondfoot-days

176 

169 

197

14,155.5

213 

314 

141 

97 

66 

319.9 

1,474 

11,870 

788

15,824.9

May

2

;

 

r

£ 

£ 

£ 

£ 

£

£ 

£ 

£ 

£ 

£

£ 

£ 

£ 

£ 

£

£ 

I 

2 

£ 

£

£ 

£ 

£ 

]

a

2

Ma^HnntlM

10 

10

8

2,610

12 

53 

7 

4 

3 

185 

734 

6,420 

162

6,420

June

1 

1 

1 

1 

.9

.9 

 9 

 9 

.9 

.9

.8 

.8 

.8 

.8

.8

.8 

.7 

.7 

.7 

.7

.9 

1 

50 

185 

22

11 

14 

8 

6

5

July

5

4 

4 

4

4 

4 

3 

3 

3

3 

4 

4 

3 

5

19 

54 

22

7 

6

10 

6 

76 

92 

734

46 

103 

30 

136 

57 

18

HHTiHmum

4 

4 

6

.3

6 

6 

3 

2 

1 

.7 

3 

11 

6

.7

Aug.

12 

3S 

44 

575 

289

108 

27 

28 

13 

11

53 

243 

1,560 

6,420 

203

53 

32 

608 

305 

70

34 

45 

322 

550 

83

38 

27 

22 

20 

19 

18

Meat

5.7 

5.6 

6.4

38.8

6.9 

10.8 

4.5 

3.2 

2.1 

10.7 

47.5 3"3 

26.3

43.2

Sept.

23 

27 

21 

14 

12

11 

10 

9 

9 

8

9 

10 

9

7 

7

6 

6 

14 

11 

9

7 

72 

59 

31 

13

8 

24 

162 

50 

130

Run-off in 

acre-feet

349

335 

391

28,070

422

623 

280 

192 

131 

635 

2,920 

23,640 

1,560

31,380

Peak discharge.- Aug. 14 (2:30 a.m.) 22,000 sec.-ft.

9-252 February 1936

UNITED STATES DEPATIENT OF THX INTERIOR 

Oeolot al Surrey
GILA RIVER BASIN 249

San Pedro River at Charleston, Ariz.

Location.- Water-stage recorder, lat. 31°39', long. 110°11', In SWi sec. 35, T. 20 S., R. 

21 E., unsurveyed, In Spanish land grant of San Juan de las Boqulllas y Nogales, at 

Charleston dam site, three-quarters of a mile north of Charleston and 6 miles upstream from Babocomarl River. Datum of gage is 3,923.0 feet above mean sea level 

(Southern Pacific Railroad bench mark).

Drainage area.- 1,250 square miles (revised), of which 696 square miles are in Mexico.

Records available.- May 1928 to December 1933, May 1935 to September 1940. 1904 to 1906 

and 1910 to 1928, at several sites upstream or downstream.

Average discharge.- 23 years (1915-33, 1935-40), 72.5 second-feet.

Extremes.- Maximum discharge during year, 31,000 second-feet Aug. 13 (gage height, 13.1 

feet),from rating curve extended above 8,500 second-feet on basis of slope-area determination at gage height 21.9 feet; minimum, 4 second-feet June 15-21.

1928-40: Maximum discharge, that of Aug. 13, 1940; minimum, 1 second-foot June 27, 

1939.

Maximum discharge known, about 98,000 second-feet Sept. 28, 1926 (gage height, 21.9 

feet, from floodmarks), by slope-area measurement.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

16 

16 

16 

16 

16

15 

144 

33 

20 

17

16 

16 

16 

16 

17

18 

17 

16 

16 

16

16 

16 

17 

17 

17

17 

16 

16 

16 

15 

14

Nov.

15

12 

12 

13 

13

14 

14 

16 

17 

17

16 

16 

16 

15 

15

14 

16 

15 

16 

16

16 

17 

18 

20 

20

22 

20 

20 

24 

24

Deo.

22 

22 

22 

22 

17

19 

18 

16 

17 

16

16 

17 

16 

17 

18

18 

17 

19 

19 

19

22 

19 

16

15 

17

17 

18 

16 

15 

14 

13

Jan.

13 

16 

17 

18 

19

20 

24 

19 

17 

16

16 

16 

22 

20 

16

14 

15 

15 

16 

16

14 

14 

17 

18 

20

22 

22 

22 

20 

20 

20

Feb.

68 

163 

40 

32 

24

22 

24 

26 

26 

26

26 

22 

22 

22 

22

24 

20 

20 

19 

18

19 

22 

34 

40

28

M22 

19

Month

Oot 

Nor 

Deo

C

Jan 

Feb 

Kar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

V

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

uary

ater year 1939-4

Peak discharge -

(6 a.m.) 2,»70 sec. 

14 (7:20 a.m.) 24,5 

a No gage-height

liar.

19 

19 

20 

18 

18

18 

17 

17 

16 

16

15 

15 

16 

15 

16

16 

16 

16 

17 

17

17 

17 

16 

16 

16

14 

14 

14 

14 

14 

14

Apr.

14 

14 

14 

14 

14

12 

12 

12 

12 

13

11 

10 

10 

10 

10

9 

10 

9

8 

8

9 

10 

10 

10 

9

8 

10 

9 

9

e

Secondfoot-days

650 

497 

549

24,720

554 

896 

503 

318 

270 

501 

4,151 

19,104 

1,494

29,487

Hay

9 

10 

9

8 

8

10 

9 

9 

10 

10

10 

10 

9 

8

8

8 

9 

9 

9

8

8 

10 

10 

10

8

8 

8 

.8 

7 

7 

6

Maxl^

144 

24 

22

3,080

24 

163 

20 

14 

10 

194 

964 

9,100 

202

9,100

June

6

5 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

4

4 

4 

4 

4 

4

4 

9 

50 

194 

20

24 

18 

18

July

16 

14 

11 

9

8

8 

8 

S 

8 

8

8 

10 

6 

5

6

964 

488 

46 

17 

12

10 

14 

120 

585 

903

208 

137 

91 

125 

242 

56

Aug.

34 

30 

183 

383 

S20

217 

64 

36 

34 

32

133 

343 

4,110 

9,100 

410

145 

81 

676 

480 

158

100 

104 

305 

516 

224

81 

56 

49 

49 

55 

96

Minimum Mean

14 21.0 

12 16.6 

13 17.7

2 67.7

13 17.9 

18 30.9 

14 16.2 

8 10.6 

6 8.7 

4 16.7 

5 134 

30 616 

19 49.8

4 80.6

Sept.

202 

a60 

a40 

a30 

Si

53 

26 

25 

25 

24

23 

24 

22 

21 

20

19 

19 

89 

81 

23

21 

20 

44

39 

34

27 

24 

87 

140 

151

Run-off in 

acre-feet

1,290 

986 

1,090

49,030

1,100 

1,780 

998 

631 

536 

994 

8,230 

37,890 

2,960

58,480

July 16 (6:30 p.m.) 10,700 sec. -ft. j July 24 (7 p.m.) 2,7fO sec. -ft.; July 25 

-ft.; Aug. 4 (12 p.m.) 2,310 sec. -ft.; Aug. 13 (9:35 p.m.) 31,000 sec. -ft.) Aug. 

00 sec. -ft. 

record; discharge computed on basis of records for statior at Palominas.

9-232 February 1956

TOTTED STATES DBP»RTMKHT OF THE INTERIOR 

Qeol -oal Surrey
250 GILA RIVER BASIN

San Pedro River near Mammoth, Ariz.

Location.- Water-stage recorder, lat. 32°44', long. 110°39', in NEi sec. 18, T. 8 S., R. 

17 E., at highway bridge li miles north of Mammoth. Datum of gage Is 2,307.06 feet 

above mean sea level (general adjustment of 1929).

Drainage area.- 3,610 square miles (revised). 

Records available.- May 1931 to September 1940.

Extremes.- Maximum discharge during year, 50,000 second-feet Aug. 14 (gage height, 12.7 

feet),from rating curve based on four float-velocity measurements between 20,000 and 

41,000 second-feet; no flow during part of year.

1931-40: Maximum discharge, that of Aug. 14, 1940; no flow during part of each year. 

Maximum flood known occurred Sept. 28, 1926 (discharge, 90,000 second-feet, computed on basis of peak discharge of San Pedro River at Charleston and of Gila River at 

Kelvin).

Remarks.- Records fair except those for periods of no gage-height record or unstable controi, which are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 194O

Day

1

a

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19

20

81 

22 

23 

24 

25

26 

27 

28 

29

30

31

Oct.

0 

0 

0 

0 

0

0 

680 

140

1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

HOT.

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 

2

1

Dec.

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1

1 

1 

1

1 

1

1 

1 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

2

1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0 

0

Feb.

1 

8 

150 

75 

25

15 

5 

5 

5 

2

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

SO 

20 

10

10'5 

5

1

Month

Oot 

Ho-v 

Dec

C

Jan 

Fet 

Mar 

Apr

Jut 

Jul Aug

Sep

«

eaber. .................................

alendar year 1939. .....................

uary

ust.. ..................................

ator year 1939-4

Mar. Apr.

Seoondfoot-days

821 

3 

24

23,539

3 

372 

0 

0 

0 

280 

3,092 

26,146 

1,266

32,007

May

HffiT^miim

680 

2

1

4,950

2 

150 

0 

0 

0 

200 

650 

19,200 

210

19,200

June

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

5 

0 

5 

5 

5

0 

200 

50 

10 

0

July

0 

0 

0 

0 

0

0 

0 

0 

0 

2

1 

0 

0 

0 

0

10 

650 

325 

45 

10

0 

0 

0 

50 

500

580 

500 

330 

SO 

2 

7

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

1 

0

0

Aug.

5 

e80 

e200 

e!30 

e250

270 

e200 

e50 

e30 

e25

e40 

e50 

e60 

19,200 

1,590

424 

263 

6360 

e770 

e320

e95 

640 

e75 

876 

6290

6250 

e!20 

e50 

825

7

1

Mean

re. 5 .1

.8

vs. 2

.1

12.8 

0 

0 

0 

9.3 

P9.7 

843 

42.2

E7.5

Sept.

elO 

e!25 

94 

19 

5

9 

eSO 

e55 

e30 

e25

e25 

elOO

77 

1 

0

0 

0 

2 

4 

2

e35 

e210 

8200 

e45 

e35

e25 

e20 

12 

9 

12

Run-off in 

acre-feet

1,630 

6.0 

48

56,610

6.0 

738 

0 

0 

0 

555 

6,130 

51,860 

2,510

63,480

Peak discharge.- Aug. 14 (9:25 a.m.) 50.000 sec. -ft.? Aue. 14 (7 D.m.) 28,800 sec. -ft.

Kote.- Ho gage-height record Oct. 1 to Aug. 6 except Oct. 7-9, July 17-19, 26, 27, Aug. E-5j 

discharge computed on basis of partial gage-height graph, weather records, engineers' observations, 

information from local residents, and comparison with records on Oila River below Ccolldge rum and 

at Kelvin and on Aravaipa Creek.
GILA. RIVER BASIN 251

San Pedro River at Winkelman, Ariz.

Location.- Measuring section, lat. 32°59', long. 110°47', in SWi sec. 23, T. 5 S., R. 15 

E., at mouth, 1 mile west of Winkelman.

Drainage area.- 4,480 square miles (revised).

Records available.- April to August 1890 (monthly discharge only, published as San Pedro 

River at Dudleyville, Ariz.), December 1928 to September 1940 (discharge measurements 

only, of which those for October 1933 to September 1934 were published as miscellaneous 

measurements).

Remarks.- Diversions above station for irrigation.

Discharge measurements, In second-feet, water year October 1939 to September 1940

Oct. 2

13

Nov. 1

15

Dec. 1

15

0.1

6.16

.35

1.77

10.2

8.09

Jan.

Feb.

Mar.

2

13

2

5

16

1

11.6

7.58

98.5

39.3

11.4

12.1

Mar.

Apr.

May

11

21

1

20

1

21

1.36

1.50

5.88

2

.50

0

June 3

21

July 2

11

26

Aug. 2

0

1.67

5. 3^

5

385

3.F8

Aug. 30

Sept. 3

13

14

20

26.7

161

110

27.6

17.9

400453 O - 41 - 17
252 GILA RIVER BASIN

Aravaipa Creek near Feldman, Arlz.

Location.- Water-stage recorder, lat. 32°50', long. 110°38', in NWi sec. 9, T. 7 S., R. 

17 E., 6 miles upstream from mouth and 6 miles southeast of Feldman.

Drainage area.- 540 square miles (revised).

Records available.- Hay 1931 to September 1940. April 1919 to September 1921, at site 6 

miles downstream.

Extremes.- Maximum discharge during year, 5,480 second-feet Sept. 21 (gage height, 8.6 

feet); minimum, 0.3 second-foot Aug. 30.

1931-40: Maximum discharge, 10,000 second-feet Aug. 15, 1935 (gage height, 10.9 

feet), from rating curve extended above 3,000 second-feet; minimum, that of Aug. 30, 

1940.

Greatest flood known, 20,000 second-feet Aug. 2, 1919, at former site.

Remarks.- Records below 20 second-feet good, those between 20 and 100 second-feet fair, 

and those during periods of unstable control or above 100 second-feet poor. Several 

diversions above and below station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

81 

28 

23 

24 

85

26 

27 

88 

29

30 

31

Oct.

5 

6 

6 

6 

6

6 

772 

23 

11 

10

10 

10 

9 

9

7

6

4 

4 

3 

3

3 

2 

2 

3 

5

6 

6 

6 

6 

6 

6

Sov.

5 

5 

5 

6 

6

6 

6 

5 

8 

11

12 

12 

12 

11 

9

8 

8 

9 

8 

8

8 

8 

9 

10 

10

10

11 

11 

12 

12

Dec.

12 

12 

12 

12 

11

11 

11 

10 

10 

10

10 

9 

9 

10 

10

10 

10 

9 

9 

9

10

11 

11 

12 

37

38 

29 

27 

21 

18 

14

Jan.

13 

12 

11 

10 

11

11 

11 

11 

1011

11 11 11

12 

12

12 

11 

10 

10 

10

10 

10 

10 

10 

9

8 

8 

7 

7 

7 

7

Feb.

9 

105

35 

21 

16

15 

14 

14 

13 

10

10 

9 

9 

8 

8

8 

S 

8 

7 

7

7 

9 

C650 

c90 

060

050 

040 

C30 

C25

Month

Dot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

«

ua

11.....................................

ater year 1939-4

Peak discharge .-

(7 a.m.) 3,080 sec. 

c Control unstab]

0. .....................

Mar.

19 

17 

15 

13

13

12 

12 

11

11 

11

11 

11 

11 

11 

10

10 

10 

9 

8 

8

7 

8 

9 

8 

9

9

8 

8 

7 

7 

7

Apr.

S 

9 

8

7 

7

7 

7 

7 

6 

5

5 

6

7 

7 

7

7 

7 

7 

7 

7

7 

7 

8 

9 

8

8 

8 

9 

8 

9

Secondfoot -days

967 

261 

434

5,491

314 

1,295 

320 

219 

166 

1,203 

259.7 

1,216.6 

774

7,429.3

May

7 

7 

6 

6 

6

6 

7 

6 

6

5

5 

5

5 

5 

5

6 

5 

6 

6

5

6 

7 

6 

6 

5

4 

4 

3 

3 

4 

3

Maximum

772 

12 

38

772

13 

650 

19 

9 

7 

480 

83 

286 

229

772

June

4 

3 

3 

3 

3

3 

3 

3 

4 

4

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

C480 

C125 

C35

C150 

C285 

20 

20 

19

July

14 

10 

7 

4 

3

3 

2 

3 

4

4

3 

3 

3 

3 

3

83 

39 

5 

3 

3

3 

2 

3 

3 

2

13 

27 

2 

1 

 9 

.8

Aug.

0.7 

.6 

282 

286 

12

94 

31 

48 

11 

53

73 

102 

11 

185 

6

4 

3 

2 

2 

2

1 

1 

.9

1 

1

.9 

.6 

.5 

.4 

.4 

.6

Sept.

15 

6 

34 

11 

10

179 

10 

10 

8 

7

39 

49 

29 

8 

7

8 

9 

10 

12 

8

229 

25 

7 

7 

7

6 

6 

6 

6 

6

iHnlmm. Minimum if. Mean Run-off in acre-feet

2 31.2 1,920 

5 8.7 518 

9 14-0 861

1 15-0 10,890

7 10.1 623 

7 44-7 2,570 

7 10.3 635 

5 7.3 434 

3 5.4 329 

3 40.1 2,390 

.8 8.38 515 

.4 39.2 2,410 

6 25.8 1,540

.4 20.3 14,740

Oct. 7 (3 p.m.) 4,470 sec. -ft.; Oct. 7 (5:30 p.m.) 4,920 sec. -ft.; Feb. 23 

-ft.; June 23 (3 a.m.) 2,600 sec. -ft.; Sept. 21 (8:10 p.m.) 5,480 sec. -ft. 

e.

' -252 February 1936

UNITED STATES DEP/TMEHT OF THE IHTERIOR 

Oeolo ;al Surrey
GILA RIVER BASIN 253

Florence-Casa Grande canal near Florence, Ariz.

Location.- Water-stage recorder and Parshall flume, lat. 33°05', lorg. 111°17' (revised) 

in NEt sec. 14 (revised), T. 43.. R. 10 E., at China Wash, 3 miles downstream from 

Ashurst-Hayden Dam and head and 6« miles northeast of Florence.

Records available.- January 1928 to September 1940.

Remarks.- Records given herein are those of discharge at gaging station less flow pumped 

from wells into canal in reach between head and gaging station. Records represent 

flow diverted from Gila River at Ashurst-Hayden Dam except for weter wasted by sluicing 

or lost from canal between head and gaging station. All sluicing- is done above 

station. Discharge at gaging station computed on basis of gage heights and rating 

for Parshall flume; that of pumps on basis of records of pumpage.

Canal diverts water from left bank of Gila River at Ashurst-Hryden Dam in NWi 

sec. 8, T. 43., R. 11 E., for irrigation of lands under San Carlos Project. Most 

of the diverted water passed through San Carlos Reservoir and was released from 

Coolldge Dam; the remainder originated below Coolidge Dam, mostly from San Pedro 

River Basin.

Cooperation.- Records furnished by Office of Indian Affairs; records of daily diversion 

are available in files of that organization at Coolidge, Ariz.

Monthly diversions, In second-feet, water year October 1"?39 to 

September 1940

Month

Calendar year 1939....

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

Water year 1939-40....

Maximum

522

272

810

279

578

744

Minimum

128

10

160

0

Mean

188

185

1 **Q

209

320

221

Run -off In 

acre-feet

11, 590

133,700

14 720

19,060

160,700

Note.- Waste water returned to river through sluice gates and 

not Included In this table amounted to about 4,000 acre-feet for 

the water year 1939-40.
254 GILA RIVER BASIN

Queen Creek near Florence Junction, Ariz.

Location.- Water-stage recorder, lat. 330 17'15", long. 111°19'30", in SWiNEi sec. 4, 

T. 2 s., R. 10 E., at highway bridge, three-quarters of a mile downstream from 

mouth of Whitlow canyon, If miles north of Florence Junction, and 3i mllee downstream from Whitlow dam site. Datum of gage is 1,918.77 feet above mean sea 

level (unadjusted).

Drainage area.- 191 square miles.

Records available.- August 1939 to September 1940. January 1896 to August 1P99 and 

February 1915 to September 1920, at several sites at or near Whitlow dam ?lte 

(drainage area, 143 square miles).

Extremes.- Maximum discharge during year, 1,110 second-feet Oct. 26 (gage height, 

5.75 feet); no flow most of year.

1939-40: Maximum discharge, 13,200 second-feet Aug. 7, 1939 (gage height, 10.6 

feet, from floodmarks), by slope-area method; no flow most of each year.

Maximum discharge observed at Whitlow dam site, 10,000 second-feet Aug. 1, 1919.

Remarks.- Records good except those below 5 second-feet, which are fair, 

diversions upstream.

SIM 11

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

O 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

43

60 

0 

0 

0 

0 

0

Nor. Dec. Jan. Feb.

11 

24 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

5 

0 

0

0 

0 

0 

0

Month

Dot 

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

«

alendar year^lQS9......................

ater year 1939-4

Peak discharge. -

UU:45 p.m.) 660 ae

0. .....................

Mar. Apr.

Seoondfoot-days

103 

0 

0

370

0 

40 

0 

0 

0 

14 

11 

69 

0

237

May

Maximum

60 

0 

0

95

0 

24 

0 

0 

0 

12 

9 

50 

0

60

June

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

12 

2 

0 

0 

0

July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

9 

2

0 

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0 

0 

50 

8 

2

0

S 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0

1

0 

0 

0 

0 

0 

0

Mean

3.3

0 

0

1.0

0 

1.4 

0 

0 

0 

.5 

.4 

2.2 

0

.6

Sept.

Run-off in 

acre-feet

204 

0 

0

734

0 

79 

0 

0 

0 

28 

22 

137 

0

470

Oct. 25 (9:15 p.m.) 805 sec. -ft.; Oct. 26 (2 a.m.) 1,110 sec. -ft.; Aug. 3 

c.-ft.

-252 February 1936

UNITED STATES DEFAP^MEHT OF THE INTERIOR 

Qeolog al Survey
GILA RIVER BASIN 255

Santa Cruz River near Nogales, Ariz.

Location.- Water-stage recorder, lat. 31°21', long. 110°51', in NWi sec. 18, T. 24 S., 

K. 15 E., unsurveyed, in Spanish land grant of Buena Vista, three-quarters of a 

mile downstream from International boundary and 5£ miles east of Nogales.

Drainage area.- 542 square miles (revised), of which 357 square miles are In Mexico.

Records available.- May 1930 to December 1933, July 1935 to Septembe- 1940. March to 

November 1907 and April 1909 to June 1920 (fragmentary), at site 5i miles downstream. April 1921 to June 1922 at site 6 miles downstream.

Extremes.- Maximum discharge during year, 1,800 second-feet Aug. 4 (gage height, 6.80 

reet;; no flow during parts of June and July.

1930-40: Maximum discharge, 14,000 second-feet Aug. 31, 1935 (gage height, 12.3 

feet), from rating curve extended above 3,000 second-feet; no flow for several days 

or parts of days each year.

Remarks.- Records good except those for periods of unstable control, July 17-24, Aug. 

2-7, 11-19, and those above 300 second-feet, which are fair. Several small 

diversions above station for Irrigation. No water diverted around station by Buena 

Vista canal since April 1939.

Discharge, In second-feet, water year October 1939 to Septembe-1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

SO

81 

22 

83 

24 

25

26 

27 

88 

89 

30 

51

Oct.

5 

6 

6 

6 

6

6 

124 

213 

53 

3S

32 

27 

23 

22 

20

19 

17 

16 

15 

14

12 

12 

12 

11 

12

11 

10 

9 

8 

7 

7

HOT.

7 

8 

8 

8 

8

9 

9 

9 

10 

9

8 

S 

8 

9 

10

10 

10 

10 

9 

9

8 

8 

9 

9 

8

8 

S 

8 

8 

8

Dec.

8 

8 

8

S 

S

8 

8 

8

S 

S

9 

9 

9 

9 

9

7 

7 

7 

7 

6

4 

4 

5 

7 

11

10 

9 

S 

7 

6 

6

Jan.

6 

6 

6 

6 

9

13 

12 

12 

11 

11

10 

9 

10 

9 

9

7 

9 

9 

9 

9

11 

13 

13 

13 

13

12 

11 

13 

10 

9 

10

Feb.

12 

87 

34 

19 

17

18 

19 

17 

16 

16

17 

16 

15 

14 

14

14 

13 

13 

12 

11

11 

24 

146 

74 

37

29

22 

15 

10

Month

Dot 

HOT 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

H

alendar year 193 9......................

Si::::::::::::::::::::::::-::::: :

atsr year 1939-4

Peak discharge. -

(8 p.m.) 1.340 see. 

(2:2.0 p.m.) 725 see

0. .....................

Mar.

7 

8 

7 

S 

7

7 

6 

7 

7 

9

10 

9 

8 

S 

9

9 

10 

11 

11 

8

6 

6 

6 

5 

5

4 

6 

5 

5 

4 

4

Apr.

5 

5 

4 

4 

4

5 

4 

3 

2 

2

2 

2 

2 

2 

2

1 

1 

1 

1 

1

.9 

.9 

1 

1 

.7

.7 

1 

1 

1 

.9

May

1 

1 

.9 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.3 

.2 

.2 

.2 

.2 

.2

Second- Ito-rimim

foot-days

779 213 

258 10 

236 11

10,407.3 1,130

310 19 

762 146 

222 11 

62.1 5 

13.4 1 

.8 .2 

534 154 

1,669.2 273 

22.7 2

4,869.2 273

June

0.2 

.2 

.2 

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

61 

154 

4 

6

13 

2 

151 

75 

56

2 

2 

1 

1 

4 

2

Aug.

0.5 

78 

96 

218 

60

24 

6 

2 

1 

.5

120 

67 

229 

273 

41

12 

44 

237 

83 

10

7 

5 

14 

22 

8

4 

3 

2 

1 

.7 

.5

Sept.

0.7 

1 

.5 

1 

.4

.5 

.4 

.4 

.4 

.4

.4 

.9 

.4 

.4 

.3

.4 

.9 

1 

.9 

.9

.9

.7 

.7 

.7 

.7

.9 

.9 

1 

2 

2

Minimum Mean «££«.?

5 25.1 1,550 

7 8.6 512 

4 7.6 468

0 26.5 20,650

6 10.0 615 

10 26.3 1,510 

4 7.2 440 

.7 2.07 123 

.2 .43 27 

0 .03 1.6 

0 17.2 l',060 

.5 53.8 3,310 

.3 .76 45

0 13.3 9,660

Aug. 2 (6:10 p.m.) 792 sec. -ft.; Aug. 4 (5:55 p.m.) 1,800 sec. -ft.; Aug. 13 

-ft., (9:50 p.m.) 1,440 sec. -ft., (11:45 p.m.) 1,260 see. -ft.; Aug. 18 

.-ft.

9-ese February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeoloi ,al Surrey
256 GI1A RIVER BASIN 

Santa Cruz River at Continental, Arlz.

Location.- Water-stage recorder, lat. 31°51', long. 110°59', In NEi sec. 23, T. 18 S. 

R~TT3~~E., In Spanish land grant of San Ignaclo de la Canoa, at highway bridge at 

Continental.

Drainage area.- 1,640 square miles, of which 403 square miles are In Mexico. 

Records available.- May to September 1940.

Extremes.- Maximum discharge during period, 12,100 second-feet Aug. 14 (gage height, 

8.85 feet) by float-area method; no flow during greater part of period.

Remarks.- Records poor prior to Aug. 7 except those for July 23, which are eoccellent; 

records good after Aug. 7 except those below 5 second-feet, which are poor. 

Several small diversions above station for Irrigation.

Discharge, in second-feet, water Tear October 1939 to September 1940

Day

1

a

3 

4

s

6 

7 

8 

9 

10

11 

18 

IS 

14

15

16 

17 

18 

19 

20

21 

88 

23 

84 

85

26 

87 

28 

29 

SO 

SI

Oct. HOT. Dec. Jan. Feb.

Month

Dot 

Bov 

Deo

C

Jan 

Pet 

Mar

fa' 

JOB 

Jul 

Au« 

Sep

T

alendar year

lie perlo

Peak discharge. -

12 (8 p.m.) 1,780 s

Mar. Apr.

Secondfoot-days

0 

103 

305 

5,084 

878

-

May

HAjdjnuni

0 

25 

198 

3,080 

846

-

June

0 

O 

0

o

0

0 

0 

0 

0 

0

o 

o

0 

0 

0

0 

0 

0 

0

}-

0 

0

3

0 

0 

0 

0

July

0 

O 

0 

0 

0

0

o

0 

0 

0

0 

0

o

0 

0

0 

50 

15 

0 

0

0 

0 

025 

CIS 

198

0 

0 

1 

3 

0 

0

Minimum

0 

0 

0 

0 

0

-

Aug.

0 

O 

0

o

200

1 

0 

0 

0 

0

226 

10 

1,520 

3,080 

0

0 

0 

0 

32 

2

0 

13 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0 

3.4 

9.8 

164 

29.3

-

Sept.

11 

0 

2 

0 

0

0 

0 

0 

0 

0

0 

846 

4 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

7 

8

Run-off in 

acre-feet

0 

204 

605 

10,080 

1,740

12,630

Aug. 13 (8:30 p.m.) 10,600 sec. -ft.; Aug. 14 (2:45 a.m.) 12,100 sec. -ft.; Sept. 

ec.-ft.

c Computed from graph based on eight staff-gage readings and three discharge measurements.

Note.- Discharge for periods, of no gage-height record, May 1 to July 22, computed on basis of 

weather records, engineers' observations, notes on flow kept by a resident of Continental, two 

floodmark readings, and records for Santa Cruz River at Tucson and near Nogales; July 25 on basis 

of floodmark and one discharge measurement, July 26 to Aug. 1 on basis of weather records and observations of engineer working at station; Sept. 3 on basis of partial gage-height record.
QILA RIVER BASIN 257

Santa Cruz River at Tucson, Ariz.

Location.- Water-stage recorder, lat. 32°13', long. 110°59', in NE$- sec. 14, T. 14 S., 

R. 13 E., at Congress Street Bridge in Tucson. Datum of gage is 2,327.16 feet 

above mean sea level (general adjustment of 1929).

Drainage area.- 2,190 square miles (revised), of which 403 square iriles are in Mexico. 

Records available.- October 1905 to September 1940. 

Average discharge.- 28 years (1912-40), 23.1 second-feet.

Extremes.- Maximum discharge during year, 11,300 second-feet Aug. 14 (gage height, 

13.05 feet); no flow during greater part of year.

1905-40: Maximum discharge, about 15,000 second-feet Dec. 23, 1914, from rating 

curve extended above 9,000 second-feet; no flow during greater part of each year.

Remarks.- Records good above 40 second-feet, fair between 15 and 40 second-feet, and 

poor below 15 second-feet. Several diversions above station for irrigation. During 

the year 37 discharge measurements were made.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3

4 

S

6 

7 

8 

9 

10

11 

18 

IS 

14 

15

16 

17 

18 

19 

80

81 

88 

89 

84 

85

86 

87 

88 

89 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

15 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Hov.

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 

20 

0

Dec. Jan. Feb.

0 

134 

1 

0 

0

1 

1

1 

1 

0

0 

0

1

1 1

1 

1

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

Heath

Oot 

lav 

Dec

C

Jan 

Feb 

Mar 

Apr

Jut 

Jul 

Aug 

Sep

11

alendar year 1939 ......................

uary

ruary

ater year 1939-4

Har. Apr.

Seeondfoot-days

15 

20 

0

12,225

0 

144 

0 

0 

0 

267 

931 

5,092 

330

6,799

May

Maximum

15 

20 

0

2,420

0 

134 

0 

0 

0 

89 

506 

4,270 

241

4,270

June

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

15 

S9 

73 

61 

0

29

0 

0 

0 

0

July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

s

al 

506 

140 

1 

0

0 

0 

0 

119 

142

14 

0 

0 

0 

0 

0

Minimum

0

0 

0

0

0 

0 

0 

0 

0 

0 

C 

C 

C

C

Aug.

0 

44 

S 

76 

66

12

al 

0 

0 

0

29 

5 

377 

4,270 

24

0 

0 

153 

17 

6

al 

0 

2

al 

0

0 

0 

0 

0 

0 

0

Mean

0.5 

.7 

0

33.5

0 

5.0 

0 

0 

0 

S.9 

30.0 

164 

11.0

18.6

Sept.

3 

0 

32

0 

0

0 

0 

0 

0 

0

0 

49 

241 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

5

Run-off in 

acre-feet

30 

40 

0

24,250

0 

286 

0 

0 

0 

530 

1,850 

10,100 

655

13,490

Peak discharge.- July 17 (2:30 p.m.) 1,590 sec.-ft.; (5 p.m.) 1,200' sec.-ft., (10 p.m.) 1,890 

se«.-ft.; Aug. 2 (7:30 a.m.) 628 sec.-ft.; Aug. 14 (4:30 a.m.) 11,300 sec.-ft.; Sept. 13 (1:30 a.m.) 

880 see.-ft.

a HO gage-height record; discharge computed on basis of engineers' field estimates of flow.

9-898 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeolog al Surrey
258 GILA RIVER BASIN

Santa Cruz River at Rlllito, Ariz.

Location.- Water-stage recorder, lat. 31°24' f long. 111°09', In NEiSWi sec. 8, T. 12 S. 

RT~nT~E., 1 mile southeast of Rlllito, 7f miles downstream from Canada del Oro, and 

8f miles downstream from Rlllito Creek. Datum of gage Is 2,053.43 feet above mean 

sea level (general adjustment of 1929). Supplementary staff gage 900 feet upstream 

at different datura.

Drainage area.- 3,530 square miles.

Records available.- October 1939 to September 1940.

Extremes.- Maximum discharge during year, 17,000 second-feet Aug. 14 (gage height, 9.9 

reet); no flow during greater part of year.

Remarks.- Records good except those for period Sept. 12-30, when supplementary staff 

gage was used, which are fair, and those for period of no gage-height record, which 

are poor. Several diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1a

a

4

5

6

7

fl

9

10

11

18

IS

14

IS

IB

17

IB

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct. HOT.

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

6

17

-

Dec.

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan.

0

0

0

0

0

16

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

Feb.

z

164

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

150

27

0

0

0

0

0

-

-

Month

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

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

Water year 1939-4

Mar. Apr.

Secondfoot -days

1

.

21

0

306 

751

8,198 

567

10,811

May

Mny4flinM|

1

_

16

0

192

7,490 

420

7,490

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4

52

192

30

2

12

14

0

0

0

-

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

204

342

0

0

0

0

2

35

148

12

8

0

0

0

0

Minimum

0

_

0

0

0

0 

0

0

Aug.

0

20

2

40

25

S

5

2

42

1

18

13

419

7,490

a40

a2

0

a!5

a35

0

0

0

a20

al

0

0

0

0

0

0

0

Mean

.03

-

.7

0

10.2 

24 2

264 

18.9

27.9

Sept.

0

0

a 15

a2

0

0

0

0

0

0

0

25

420

0

0

0

0

0

0

0

eo

25

0

0

0

0

0

0

0

0

-

Run-off in 

acre-feet

2

_

42

0

607

16,260 

1,120

20,250

Peak discharge.- June 23 (7:30 a.m.) 1,200 aec.-ft.; July 17 (6 p.m.) 1,430 sec.-ft.; July 18 

(1:30 a.m.) 1,660 aec.-ft.; Aug. 14 (4 a.m.) 17,000 aec.-ft.

a No gage-height record; discharge computed from graph based on three discharge meaaurementa, 

englneera' observations, and records for Santa Cruz River at Tucaon and Rlllito Creek near Tucaon.

" 832 February 1936

UNITED STATES DKPAWHIENT OF THE IHTERIOR 

Qeolog al Surrey
GILA RIVER BASIN 259

Santa Cruz River near Laveen, Arlz.

Location.- Water-stage recorder, lat. 33°13', long. 112°10', In NEiNEi sec. 29, T. 

2 S., R. 2 E., on Glla River Indian Reservation, at highway bridge, 3 miles south 

of Komatke, 9 miles upstream from mouth, and 94 miles south of Leveen. Datum of 

gage Is 1,021.1 feet above mean sea level (general adjustment of 1912, levels by 

Office of Indian Affairs.)

Drainage area.- 8,970 square miles.

Records available.- January to September 1940.

Extremes.- Maximum discharge during period, 1,200 second-feet Sept. 18 (gage height, 

9.30 feet); no flow on several days during July, August, and September.

Flood In September 1939 reached a stage of 9.5 feet, from flcodmarks (discharge, 

1,260 second-feet).

Remarks.- Records good except those for period of no gage-height record, which are 

poor. Several diversions above station for Irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

8

S

4

5

6

7

a

9

10

11

18

13

14

15

16

17

18

19

20

21

22

23

84

25

26

27

28

89

30

31

Oct. Nov. Dec. Jan.

.

a3

'

Feb.

a5

a3

a3

a3

a3

a3

a3

a3

a3

a3

3

3

3

3

3

3

3

3

3

3

3

3

3

2

2

2

2

2

2

_

-

Month

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

Jan 

Peb 

Mar

uary 1940.................... ..........

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

Jul 

Aug 

Sep

y. .....................................

The perio(J... ...........................

Mar.

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

3

Apr.

3

3

3

3

3

3

3

3

3

3

3

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

-

Seoondfoot-days

93 

83 

93

71

2S.O

23.0

160.3 

1,059.0 

1,519.5

-

May

2

1

1

1

1

1

1

1

1

1

.9

.9

.9

.S

.8

.8

.7

.7

.7

.7

.7

.7

.7

.8

.8

.9

.9

.9

.9

.9

.9

Maximum

5 

3

3

2

1

96 

536 

945

-

June

0.9

1

1

1

1

.9

.9

.9

.9

.9

.9

.9

.9

.9

.S

.7

.7

.7

.7

.7

.7

.7

.7

.7

.5

.5

.5

.5

.5

.4

-

July

0.4

.4

.4

.4

.4

.4

.3

.3

.3

.2

,2

.2

.1

.1

.1

.1

0

0

0

0

0

0

0

0

1

32

96

26

1

0

0

Mi^

2 

3

2

.7

.4

0 

0 

0

-

Aug.

0

0

.1

.3

59

26

1

0

0

0

0

0

0

0

0

33

535

303

57

33

5

2

.9

.7

.5

.5

.4

.4

.4

.4

.4

Mean

3 

2.9 

3.0

2.4

.90

.77

5.17 

34.2 

50.6

-

Sept.

0.4

.4

.3

.3

.3

.5

.4

.3

.3

.3

.5

.5

74

21

3

.4

35

945

246

98

84

6

1

.7

.4

.3

.2

0

0

0

Run-off in 

acre-feet

184 

165 

184

141

56

46

318 

2,100 

3,010

6,200

Peak discharge.- July 27 (1 a.m.) 227 sec.-ft.; Aug. 17 (7 p.m.) 743 sec.-ft.; Sept. 18 (10 a.m.) 

1,200 sec.-ft.

a No gage-height record; discharge computed on basis of several field estimates by engineers and 

weather records.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeolo& al Surrey
260 GILA RIVER BASIN 

Sonoita Creek near Patagonia, Ariz.

Location.- Water-stage recorder, lat. 31°30', long. 110°49', in sec. 21, T. 2£ S., R. 15 

K., unsurveyed, in Spanish land grant of San Jose de Sonoita, 5 miles downstream from 

Patagonia. Prior to Mar. 6, 1940, water-stage recorder 2,700 feet downstream at datum 

18.00 feet lower.

Drainage area.- 210 square miles.

Records available.- June 1930 to December 1933, July 1935 to September 1940.

Extremes.- Maximum discharge during year, 2,580 second-feet Aug. 13 (gage height, S.42 

reet); no flow on many days.

1930-40: Maximum discharge, about 20,000 second-feet sometime in August. 1934 

(gage height, 18.0 feet, present site and datum, from floodmarks), by slope-area measurement; probably no flow at present site for several days during summer of each year.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Several small diversions above station for irrigation and mining. Extreme low-water 

records at present site not comparable with those at former site; for comparison see 

table of miscellaneous measurements at end of report.

Discharge, In second-feet, water year October 1939 to September 1940

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.

0.9 

.7 

.6 

.6 

.6

.6 

6 

6

S 

Z

1 

1

1 

1 

1

1 

1 

1 

1

1

1 

Z 

2 

2 

2

2 

2 

2 

2 

2 

2

Hov.

2 

2 

2 

2 

2

2 

2 

3 

4 

4

3 

2 

2 

2 

2

2 

S 

3 

2 

2

2 

3 

3 

4 

4

S 

S 

4 

6 

4

Dec.

3 

3 

3 

3 

3

3 

S 

3 

S 

S

S 

S 

2 

2 

2

2 

2 

S 

3 

3

3

3 

S 

4 

6

4 

4 

4 

4 

3 

S

Jan.

3 

3 

3 

3 

6

6 

4 

4 

4 

4

4 

3 

3 

S 

3

3 

3 

4 

S 

3

S 

4 

4 

4 

3

3 

S 

3 

2 

S 

3

Feb.

e

28 

7 

6 

4

3 

2 

3 

2 

2

2 

2 

2 

2 

2

3 

3 

3 

S 

3

S 

17 

44 

8 

4

S 

S 

3 

4

Month

Dot 

BOT

Dec

C

Jan 

Pet 

Mar 

Apr

Jui Jill

Aug 

Bep

I

enter. .................................

alendar year 1939. .....................

1M

ater year 1939-4to......................

Mar.

4 

4 

4 

3 

4

4 

a4 

a4 

a4 

a4

a4 

a4 

as 

a3 

as

as 

as 

as 

aS 

a3

a3 

a2 

a2 

a2 

a2

a2 

a2 

a2 

a2 

a2 

a2

Apr.

al

al

1 

1 

1

1 

1 

1 

1 

.8

.6 

.6 

.6 

.6 

.6

.8 

1 

1 

.8 

.6

.6 

.6

1 

1 

1

1 

1 

.8 

.6 

.4

Seoondfoot-days

49.9 

83 

96

2,470.8

105 

175 

94 

25.0 

12.1 

11.5 

368.9 

474.4 

119.2

1,614.0

Hay

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.4 

.3

.3 

.4 

.4 

.5 

.6

.6 

.4 

.5 

.5 

.3

.4

1 

.5 

.4 

.3

.2 

.2 

.^

.2 

.1 

a.l

Maximum

5 

5 

6

200

5 

44

4 

1 

1 

S 

172 

201 

81

201

June

aO.l 

a.l 

a.l 

a.l

.1

.1 

.1 

.1 

.1 

.1

.1 

0 

0 

0 

0

0 

0 

0 

0 

2

2 

S 

2 

.6 

.3

.1 

.2 

.1 

.1 

0

July

0

0

0

.1

0

0 

0 

0 

0

.1

.1 

.1

0

.1

.2

.2 

172 

a5 

a2 

al

al 

al 

al 

109 

32

5

2

1 

27 

7 

2

lH»«4minn

0.5 

2 

2

.2

2 

2 

2 

.4 

.1 

0 

0 

.6 

.3

0.

*«*.

1 

9 

3 

2 

2

1 

.8 

18 

S 

3

4 

2 

201 

106 

2

84 

3 

14 

2 

2

1 

1 

2 

2

1

1 

.8 

.8 

.6 

.6 

.8

Mean

1.61 

2.8 

3.1

6.77

3.4 

6.0 

3.0 

.83 

.59 

.38 

11.9 

15.3 

3.97

4.41

Sept.

0.8 

.6 

2 

.4 

.4

.3 

.4 

.4 

.4 

.4

1 

3 

2

1 

1

1 

1 

1 

1

1

6 

3

1 

1 

.5

.6 

2 

2 

81 

3

Run-off In 

aore-feet

99 

165 

190

4,900

208 

S47 

186 

50 

24 

23 

732 

941 

236

3,200

Peak discharge.- July 17 (4 p.m.) 1,480 sec.-ft.; Aug. 13 (10t30 p.m.) 2,580 sec.-f:.

a No gage-height record; discharge computed on basis of records for preceding and following days.

1 .-CS2 February 19S6

TOTTED STATES DEPAPTIEHT OP THE IHTERIOR 

Qeolog al Survey
01 LA. RIVER BASIN 261

Rllllto Creek near Wrightstovm, Ariz.

Location.- Water-stage recorder, lat. 32fl6', long. 110°51', in NEiVEi sec. 31, T. 13 

S., R. 15 E., at highway bridge 1 mile downstream from Sabino Cr3ek, 2 miles upstream from Pantano Wash, and 3i miles northwest of Wrightstown.

Drainage area.- 221 square miles.

Records available.- June to September 1940.

Extremes . - Maximum discharge during period, 5,400 second-feet Aug. 13 (gage height, 

7.8 reet), by slope-area method; no flow during greater part of period.

Remarks . - Records poor. Several small diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

81

28

83

84

25

86

87

88

89

SO

51

Oct. HOT. Dec. Jan. Feb.

Month

Apr

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

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

The perioa........... ...................

Mar. Apr.

Seoondfoot-days

_

-

0

0

282

34

-

May

Maximum

_

-

0

0

273

31

-

June July

Minimum

_

-

0

0

0

0

-

Aug.

0

0

0

0

0

0

0

al

0

1

0

0

273

7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

_

-

0~

0

9.1

1.1

-

Sept.

0

0

0

0

0

0

0

0

0

0

0

31

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Run-off in 

acre-feet

_

-

"o

0

569

67

626

Peak discharge.- Aug. 10 (11:30 p.m.) 35 sec.-ft.; Aug. 13 (8:45 p.m.) 5,400 sec.-ft.; Sept. 12 

(9 p.m.} 367 sec.-ft. 

a No gage-height record; discharge computed on basis of engineer's field estimate Aug. 9.

9-232 February 1936

TOTTED STATES DEPAPTIEHT OF THB INTERIOR 

Qeolog al Surrey
262 GILA RIVER BASIN

Rilllto Creek near Tucson, Ariz.

Location.- Water-stage recorder, lat. 32°18', long. 110°59', In sec. 23, T. 13 S., R. 13 

E., at Oracle Road Bridge, 4 miles upstream from mouth and 4 miles north of Tucson. 

Datum of gage is 2,290.78 feet above mean sea level (general adjustment of 1929).

Drainage area.- 903 square miles.

Records available.- January 1911 to September 1940.

Average discharge.- 27 years (1913-40), 25.4 second-feet.

Extremes.- Maximum discharge during year, 13,200 second-feet Aug. 13 (gage height, 10.30 

feet); no flow during greater part of year.

1911-40: Maximum discharge, 24,000 second-feet Sept. 23, 1929, from rating curve 

extended above 12,000 second-feet by velocity-area study; no flow during greater part 

of each year.

Remarks.- Records fair except those below 25 second-feet, which are poor. Several small 

diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

S3.

22

23

24

25

26

87

88

29

30

31

Oct.

0

0

0

0

0

0

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

HOT.

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

1

0

Dec. Jan.

0

0

0

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

16

0

0

0

0

0

0

0

0

0

0

0

c

0

0

0

0

0

0

0

0

114

2

0

0

0

0

0

_

-

Month

Jan

Fell 

Mar

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

Mav. ...

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

Water year 1939-410....... ...............

Mar. Apr.

Secondfoot-days

2

1

0

3,469

1 

132 

0

0

0

226

12

3,578

260

4,211

Hay

Vq-ytiitiini

2

1

0

1,890

1 

114 

0

0

0

224

12

2,270

143

2,270

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

224

1

0

0

0

0

0

0

-

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

12

0

0

0

0

Minimum

0

0

0

0

0 

0 

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

0

0

0

9

12

0

1

0

1,240

2,270

0

0

0

3

7

0

0

0

36

0

0

0

0

0

0

0

0

Mean

0.1

0

0

9.6

0 

4.6 

0

0

0

7.6

.4

115

8.7

115

Sept.

0

0

10

0

0

0

0

0

0

0

0

143

107

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Run-off .in 

acre-feet

4

2

0

6,880

2

268 

0

0

0

446

84

7,100

516

8,360

Peak discharge.- June 23 (4:30 a.m.) 2,810 sec.-ft.; Aug. 13 (11:40 p.m.) 13,200 sec.-ft.

9-232 February 1936

UHITKD STATES DEPAB""MENT OF THE IHTERIOH 

Oeologi J. Survey
GILA. RIVER BASIN 263

Sabino Creek near Tucson, Ariz.

Location.- Water-stage recorder and concrete control, lat. 32°19', long. 110°49', in E$ 

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.- June 1932 to September 1940.

Extremes.- Maximum discharge during year, 904 second-feet Feb. 23 (gage height, 4.98 

reet); no flow June 7-19.

1932-40: 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 several years.

Remarks.- Records excellent. No diversions above station. Slight regulation by several 

small dams constructed to provide recreational lakes.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

S

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.03

.02

.02

.02

.02

.02

.04

21

4.7

2.3

1.7

1.3

1.0

.S

.6

.6

.5

.4

.4

.3

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.09

HOT.

0.09

.05

.05

.05

.05

.04

.05

.04

1.8

12

3.7

1.7

1.0

.S

.7

.6

.5

.4

.4

.3

.2

.2

.2

.2

.2

.2

.1

.2

.3

.4

Dec.

0.4

.4

.4

.6

.6

.6

.6

.5

.5

.5

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.4

.4

.4

.4

.4

.4

.4

Jan.

0.3

.3

.4

1.0

1.8

2.7

3.2

2.9

2.3

2.2

2.0

1.8

1.7

1.6

1.6

1.4

1.2

1.1

1.0

.8

.7

.6

.6

.6

.5

.4

.4

.4

.4

.3

.3

Feb.

21

93

19

9.7

6.4

4.5

3.8

3.1

2.9

2.4

2.3

2.1

1.8

1.7

1.6

1.5

1.4

1.2

1.0

1.1

1.0

1.5

436

95

39

28

23

17

12

_

-

Month

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

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

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

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

Water year 1939-4 0......................

Mar.

10

7.9

6.4

5.5

4.9

4.0

4.0

3.6

3.3

3.3

4.9

5.5

4.9

4.0

3.8

3.4

2.9

2.7

2.6

2.3

2.3

2.1

2.1

2.1

2.0

1.8

1.7

1.7

1.5

1.4

1.2

Apr.

1.2

2.0

2.4

2.4

2.1

1.8

1.5

1.2

1.1

.9

.8

.2

.2

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

1.1

.9

.5

.4

.3

.2

.2

-

Secondfoot-days

37.66

26.52

11.6

1,069.88

36.5

834.0

109.8

24.9

.99

155.06

10.56

3"7 22

28^06

1,312.87

May

0.2

.1

.09

.05

.04

.03

.03

.03

.03

.03

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.01

.01

.01

.01

.01

.01

Vq^TfpiTM

21

12

.6

108

3.2

436

10

2.4

.2

49

5.8

9.9

13

436

June

0.01

.01

.01

.01

.01

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

2.3

48

49

16

24

7.9

3.6

2.0

1.0

.6

.6

-

July

o.s

.4

.3

.1

.03

.02

.02

.02

.02

.02

.02

.02

.01

.01

.01

.01

.02

.02

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

i01

5.8

2.8

Aug.

1.1

.6

.6

1.1

.5

.5

.6

.9

5.9

3.3

1.2

.6

.7

2.4

.7

.4

.2

.08

.06

.04

.04

.03

.03

9.9

3.6

1.2

.6

.3

.1

.08

.06

Minimum Mean

o.or 1.21

.04 .884

.2 .37

0 2.93

.3 1.18

1.0 28. 8

1.2 3.54

 2 »S3

.01 .032

0 5.17

.01 .341

.or 1.20

.Or ' .935

0 3.59

Sept.

0.06

.06

13

5.9

2.0

1.0

.6

.3

.2

.1

.06

.06

.06

.04

.03

.03

.03

.04

.03

.03

.03

.3

1.8

.9

.5

.3

.2

.2

.1

.1

-

Run-off in 

acre-feet

75

53

23

2,120

72

1,650

218

49

2«0

308

21

74

56

2,600

9-232 February 1936

UNITED STATES DEPAjmCKHT OF THE INTERIOR 

Oeolog. U. Surrey
264 GILA RIVER BASIN

Pantano Wash near Tucson, Ariz.

location.- Water-stage recorder supplemented by staff gage. lat. 32°15', long. 110°51', 

NEtNWt sec. 6, T. 14 S., R. 15 E., at highway bridge, if miles upstream from moi-th 

and 7 miles east of Tucson.

drainage area.- 602 square miles.

Records available.- June to September 1940.

Extremes.- Maximum discharge, during period, 9,200 second-feet Aug. 13 (gage height, 4.50 

feet;; no flow during greater part of period.

Remarks.- Records fair except those below 100 second-feet, which are poor. Several small 

diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

~>ay

1

3

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14 

IS

16 

17 

18 

19 

80

21 

88 

83 

84 

85

86 

87 

88 

89 

30 

31

Oct. HOT. Dec. Jan. Feb.

Month

Oet 

Hoy 

Dec

0

Jan 

Feb 

Mar 

Apr

Jm 

Jul 

Aug 

Sep

T

alendar year

he perio

Peak discharge. -

(7:30 p.m. ) 3,520 s

Mar. Apr.

£££.

340 

36 

2,341 

372

-

May

Ma** 

340 

20 

1,660 

286

-

June

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

C340 

0 

0

0 

0 

0 

0 

0

July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

10 

0 

3 

3 

0

20 

0 

0 

0 

0 

0

Minimum

0 

0 

0 

0

-

Aug.

0 

0 

0 

0 

0

0 

0 

10 

25 

6

6 

0 

672 

1,560 

0

0 

0 

16

1 

0

0 

10 

46 

0 

0

0 

0 

0 

0 

0 

0

Mean

11.3 

1.2 

75.5 

12.4

-

Sept.

0 

0 

17 

0 

0

1 

0 

0 

0 

0

0 

285 

60 

0 

0

0 

2 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

7

SSre-SeV1

674 

71 

4,640 

738

6,120

June 23 (12:01 a.m.) 3,230 sec. -ft.; Aug. 13 (12 p.m.) 9,200 sec. -ft.; S^pt. 12 

ec.-ft.

o Computed on basis of one discharge measurement, floodmark, several gage-height readings, and 

records for Rlllito Creek near Tucson.

Hote.- Channel away from recording gage Aug. 14-21, Aug. 23 to Sept. 11, and Sept. 13-30; discharge computed from staff-gage readings and 11 discharge measurements.
GILA RIVER BASIN 265

Salt River near Chrysotile, Ariz.

Location.- Water-stage recorder, lat. 33048', 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, 5i miles northeast of Chrysotile, and 8 miles upstream from Cibecue 

Creek. Datum of gage is 3,353.8 feet above mean sea level (general adjustment of 

1929).

Drainage area.- 2,830 square miles.

Records available.- September 1924 to September 1940.

Average discharge.- 16 years, 604 second-feet.

Extremes.- Maximum discharge during year, 6,300 second-feet Aug. 15 (gage height, 6.40 

reet); minimum, 96 second-feet Oct. 5, July 12, 13: minimum gage-height, 1.44 feet 

July 12, 13.

1924-40: Maximum discharge, 52,900 second-feet (revised) Feb. 7, 1937 (gage 

height, 15.18 feet); minimum, 89 second-feet July 14, 1939 (gage height, 1.39 feet).

Revisions.- The figures of maximum discharge for some water years have been revised, as shown in the following table. They supersede those published in the watersupply papers indicated.

Water-Supply 

Paper

649, 859.... 

734, 859.... 

829, 859.... 

859 .........

Water 

year

1926-27 

1931-32 

1936-37 

1937-38

Date

Feb. 17 

10 

7 

Mar. 4

Gage height 

(feet)

9.9 

13.3

15.18 

9.68

Discharge 

(second-feet)

19,900 

40,000 

52,900 

19,000

Remarks.- Records excellent except those for period of faulty gage-height record, which 

are good. Several small diversions above station.

Revisions.- Revised figures of discharge for high-water periods in the water years 1927, 

1932, and 1937 are given herein. They supersede 'those published in Water-Supply 

Papers 649, 734, 829, and 859.

Day 

(water year)

1926-27

Discharge 

(second -feet)

Day 

(water year)

1931-32

Discharge 

(second -feet)

11,800

Day 

(water year)

1936-37

Discharge 

(second-feet)

Discharge, In second-feet, water year October 1939 to September 1940

D«y

1

2

S

4

6

6

7

8

9

10

11

12

IS

14

16

16

17

18

19

20

21

22

23

24

26

26

27

28

29

SO

31

Oct.

115

110

105

102

96

99

99

134

346

284

860

211

1S6

171

160

149

146

143

140

137

137

134

137

134

137

146

156

164

160

156

153

Nov.

143

143

143

140

140

140

143

146

167

256

246

233

224

199

1S2

175

167

164

160

160

153

149

149

149

153

160

160

164

320

199

-

Dec.

175

167

164

164

156

156

153

153

153

153

153

153

153

149

146

143

140

143

143

140

137

143

153

153

190

194

171

156

140

130

140

Jan.

156

164

168

164

175

194

233

220

199

1S6

1S6

190

207

256

265

215

194

190

1S6

179

175

171

179

168

168

16S

160

160

160

164

16S

Feb.

203

1,720

1,320

822

598

528

451

391

357

309

279

269

260

246

246

246

233

224

207

203

199

203

228

345

444

414

451

521

569

_

-

liar.

641

641

598

583

555

508

508

60S

528

619

749

1,070

960

797

694

664

6S7

694

725

741

789

873

960

1,030

1,080

al,150

al,250

al,350

1,300

1,160

1,120

Apr.

al,200

al,200

al,050

al,020

943

925

699

S99

916

987

1,020

969

890

864

839

805

789

765

765

741

702

709

717

717

702

656

627

634

591

535

-

May

495

4S2

488

488

515

508

495

470

457

432

420

420

408

391

374

368

362

379

397

432

403

391

391

379

36S

36S

352

324

304

289

274

June

260

251

246

233

224

207

207

194

182

179

175

164

156

149

143

134

130

130

127

127

17S

124

127

aS35

396

304

260

203

203

194

-

July

1S2

179

164

153

140

130

121

110

104

102

102

96

99

138

127

12S

122

141

134

124

113

107

107

118

676

679

267

215

203

179

146

Aug.

137

124

221

327

220

194

269

255

203

194

164

16S

156

168

1,300

29&,

203

179

407

264

175

242

194

320

228

287

233

256

216

190

175

Sept.

324

323

1,020

455

270

320

220

179

175

186

175

244

190

182

171

168

164

16S

256

256

283

447

412

309

294

269

251

269

1,290

al,130

-

Peak discharge.- Feb. 2 (2:30 p.m.) 3,490 sec.-ft.; Aug. 15 (4 a.m.) 6,300 

(8:50 a.m.) 3,73O sec.-ft.

a Gage-height record faulty; discharge computed on basis of partial record, 

records for station near Roosevelt.

iec.-ft.; Sept. 29 

weather records, and

9-238 September 1937

UNITED STATES DEPARTMENT OF THE INTERIOR 

Ooolog al Survey
866 GILA RIVER BASIN

Monthly discharge, In second-feet, of Salt River near Chrysotlle, Ariz., 1926-27, 1951-52,

1936-37, 1939-40

Month

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

Water year 1926-27 .....................

Hay. ......................................

Water year 1931-32 .....................

Hay.......................................

Water year 1936-37 .....................

Calendar year 1939 .....................

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

Water year 1939-40 .....................

Secondfoot-days

294 If SOBCF

288,983

20,302

269,765

19 044

455,110

284,272

7 258

540,528

149,801

5,768

12,986

25,076

6,442

5,406

127,017

Maximum

19 &

16,700

1,080

5,700

»7PA

30,800

278

8,890

25,000

5,870

265

1,820

1,350

835

679

1,300

1,820

Minimum

219

178

157

385

153

2*79

i n**

183

1 AK

145

278

PTQ

140

91

1S6

199

508

124

96

96

Mean

0«Q

SOfi°

269

2 190

<z-i p

792

656

739

A*T<Z

1,840

777

242

2 *700

2 5YO

5 T 1 O

932

410

186

448

824

836

215

174

347

Rin-off In 

acre-feet

122 000

19 200

20 700

573,000

40,300

535,000

29 100

902,000

563,800

675,000

9,530

897,100

11,440

25,760

50,640

49,740

25,040

12,780

10,720

1«,840

261,900
CILA RIVER BASIN 267

Salt River near Roosevelt, Arlz.

Location.- Water-stage recorder, lat. 33°37' , long. 110°55', In NEi se". 9, T. 3 N., R. 

14 E. , 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, 17 miles upstream from Roosevelt Dam, and 14 miles east of village of Roosevelt. Datum of gage Is 2,177.14 feet above mean sea level (general adjustment of 

1929).

Drainage area.- 4,310 square miles.

Records available.- October 1913 to September 1940.

Average discharge.- 27 years, 953 second-feet.

Extremes . - Maximum discharge during year, 4,610 second-feet July 16 (gage height, 10.80 

feet); minimum, 104 second-feet July 13 (gage height, 5.50 feet).

1913-40: Maximum discharge, about 100,000 second-feet Jan. 19, 1916, by computation,, of flow over Roosevelt Dam; minimum, 91 second-feet June 30, 1934. 

Minimum discharge known, about 42 second-feet Aug. 5, 1911.

Remarks.- Records excellent. Several small diversions above station for Irrigation. 

During the year 241 discharge measurements were made. See page 27C for records for 

Tonto Creek, which also contributes to Roosevelt Reservoir.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

S

6 

7

a

9 

10

11 12- 

IS 

14 

IS

16 

17 

IB 

19 

20

81 

88 

83 

84 

85

86 

87 

88 

29 

30 

31

Oct.

144 

137 

139 

139 

137

132 

134 

137 

170 

349

303 

276 

234 

214 

200

188 

183 

180 

173 

168

168 

165 168' 

165 

175

224 

262 

205 

197 

188 

186

HOT.

186

183 

177 

177 

177

177 

177 

177 

221 

372

307 

284 

269 

251 

234

224 

211 

2O8 

197 

200

197 

194 

188 

194 

191

191 

205 

208 

239 

400

Dec.

244 

221 

202 

2OO 

197

197 

194 

191 

197 

197

191 

194 

197 

194 

191

186 

186 

186 

191 

191

183 

180 

188 

191 

211

254 

244 

218 

200 

186 

175

Jan.

183 

202 

216 

216 

226

240 

247 

299 

284 

250

240 

244 

247 

284 

326

314 

284 

250 

240 

236

236 

226 

222 

226 

222

219 

219 

212 

206 

209 

216

Feb.

261 

1,160 

3,01O 

1,450 

967

767 

661 

542 

469 

425

371 

350 

338 

330 

310

303 

295 

291 

276 

258

254 

258 

280 

303 

455

491 

542 

668 

731

Month

Oot 

HOT 

Deo

C

Jan 

Pet 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

fl

alendar year 1939......................

««t. ..>.................

ater year 1939-4

liar.

789 

819 

774 

745 

716

655 

622 

622 

603 

648

796 

1,020 

1,180 

991 

S73

796 

7S1 

804 

819 

842

849 

904 

1,010 

1,060 

1,100

1,180 

1,260 

1,340 

1,300 

1,220 

1,140

Apr.

1,180 

1,310 

1,220 

1,070 

1,090

1,070 

1,070 

1,030 

1,020 

1,050

1,100 

1,070 

1,000 

964 

940

924 

901 

685 

854 

854

779 

765 

765 

772 

758

715 

674 

661 

668 

604

Secondfoot-days

5,840 

5,616 

6,177

176,817

7,441 

16,816 

28,258 

27,763 

13,576 

6,672 

6,833 

10,537 

13,005

149,534

May

556 

522 

506 

501 

511

545 

539 

517 

496 

474

449

449 

449 

440 

411

397 

392 

397 

415 

440

444 

425 

420 

425 

397

392 

383 

357 

331 

310 

286

Maximum

349 

400 

254

5,750

326 

3,010 

1,340 

1,310 

556 

520 

S25 

1,170 

1,390

3,010

June

278 

270 

259 

247 

233

212 

205 

198 

192 

182

176 

173 

159 

145 

145

137 

135 

130 

ISO 

149

145 

178 

148 

520 

475

407 

350 

267 

215 

212

Ji;ly

208 

192 

189 

170 

156

140 

132 

127 

118 

113

109 

109 

106 

109 

148

504 

406 

190 

173 

165

156 

145 

137 

158 

350

825 

538 

282 

240 

233 

205

Minimum

132 

177 

175

96

183 

254 

603 

604 

286 

130 

106 

156 

208

1O6

Aug.

176 

156 

164 

391 

424

241 

229 

291 

274 

212

202 

173 

385 

418 

1,170

626 

289 

240 

389 

447

295 

212 

369 

370 

462

532 

336 

282 

290 

259 

233

Mean

188 

221 

199

484

240 

5SO 

912 

925 

438 

222 

220 

340 

434

409

Sept.

229 

474 

315 

1,390 

406

323 

375 

251 

215 

208

233 

515 

355 

244 

222

215 

219 

226 

246 

335

302 

950 

501 

431 

344

323 

302 

306 

1,260 

1,290

Run-off in 

acre-feet

11,580 

13,120 

12,250

350, 7OO

14,760 

33,350 

56,050 

55,070 

26,930 

13,230 

13,550 

20,900 

25,800

296,600

Peak discharge.- Feb. 2 (12:50 a.m.) 3,820 see.-ft.; July 16 (6:30 a.m.) 4,610 see.-ft.

9"a 400453 0-41-18

UNITED STATES DEPARTM*1*!! OP THE INTERIOR 

Oeologlct Survey
268 GILA RIVER BASIN

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

Location.- This system comprises four storage reservoirs created by four separate dams 

on Sclt 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 downstream 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.- 6,820 square miles (revised) at Stewart Mountain Dam. 

Records available.- October 1934 to September 1940.

Extremes.- Maximum daily contents of system during year, 168,900 acre-feet Apr. 12, 13; 

minimum dally contents, 20,680 acre-feet Sept. 16.

1934-40: Maximum daily contents, 1,312,200 acre-feet May 3, 1937; minimum daily 

contents, that of Sept. 16, 1940.

Remarks.- Total storage capacity of the four reservoirs is 1,771,000 acre-feet, divided 

as follows: Roosevelt Lake, 1,398,000 acre-feet; Apache Lake, 245,000 acre-feet; 

Canyon Lake, 58,000 acre-feet (revised); Sahuaro Lake, 70,000 acre-feet. Water from 

this system is used for irrigation of Salt River Valley near Phoenix and for the 

generation of power. The four dams forming these reservoirs completely develop the 

fall in Salt River from Roosevelt Lake to Stewart Mountain Dam.

Cooperation.- Records of daily contents furnished by Salt River Valley Water Users' 

Association.

Contents, In acre-feet, water year October 1939 to September 1940

Day

1

2

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

51

Oct.

164,700

164,900

'164,700

163,800

162,700

161,400

160,300

159,500

153,400

157,600

156, 500

155,100

153,900

153,300

152,500

151,500

150,400

149,700

148,600

147,500

146,400

145,500

144,500

143,400

142,400

141,500

140,000

139,300

139,000

138,100

137,300

Nor.

136,400

135, 100

134,100

133,300

132,300

131, 500

130,700

129,800

129,200

129,100

129,300

129,600

129,400

128,700

128,000

127,400

126,700

126,600

126,600

125,900

124,900

123, 700

121,900

120,600

120,000

120,200

120,800

121, 500

122,400

123,300

-

Dee.

124,000

124,800

125,600

126,200

126, 800

127,400

128, 000

128,600

129,200

129,600

130,100

130,600

131,000

130,700

129,800

129,600

129,200

128, 500

127,400

126,100

124,700

123,700

123,100

122,700

122, 500

121,800

120,400

118,900

117,300

116,300

115,900

Jan.

116,300

116,900

117,300

117,900

113,500

119,000

119,600

120, 100

120,900

121, 500

122,200

122,900

123,200

123,600

124,300

125,000

125,600

126,300

127, 000

127,500

127,700

128,200

128,900

129,400

129,600

129,600

129,700

130,000

129,700

129,000

128,700

Feb.

129,100

131,400

135,000

137,900

139,800

141, 100

142,300

143, 500

144,700

145,600

146, 400

147,200

147,800

148, 500

149,100

149,500

149,600

149,900

150,700

151,200

151,500

152, 000

152, 500

153, 000

153, 400

154,200

154,600

155,300

156,000

-

Mar.

157,400

158,300

160,000

161,300

162,100

163,100

164,400

165,600

166,900

167,600

167, 500

167,400

167,800

167,700

167,600

167,500

167,300

167,100

166,700

165,900

165,500

164,900

164,300

163,900

163,700

162, 800

162,300

162, 800

163, 300

163,700

164,200

Apr.

164,600

165,200

165,900

166,000

166, 500

166,900

167, 300

167,600

167,900

167,900

168,600

168,900

168,900

168,800

168, 400

167,700

167,400

167,100

166,600

166,300

166,000

166,000

165,900

165,600

165,200

164,800

164,800

165,300

165, 500

165,600

-

May

165, 500

165, 100

164, 700

164,000

163,300

162,600

162,100

161,500

160,600

160,000

159,200

158,600

158, 200

157,700

156,800

155,500

154,500

153,500

152,700

152, 100

151,300

150,400

149,700

149,100

148,300

147,100

145,800

144,200

142,700

141,300

139,800

June

138, 500

137,200

135, 500

134,000

132,500

131,000

129,500

128, 500

127, 700

125, 500

123,500

121,500

119,500

117, 100

114,800

112,600

110,200

107,600

105,500

103,900

102,600

101,000

99,660

98,310

97,240

95,980

94,710

93,090

91,970

90,140

-

July

39,110

87, 530

85,710

33,800

81,860

30,010

78, ISO

76,080

74,260

72,530

70,910

68,850

67,060

65,310

63,860

62,410

61,400

59,970

59,230

58,140

56,740

54,850

52, 560

50,320

48,630

47,890

46,040

44,660

42,840

41,310

40,160

Au«t.

39,330

33.110

37, 440

36.650

36 . 600

35 960

35.690

35.290

34,860

34,190

33 . 660

32.840

31,860

30,640

30, 120

30.190

29,550

29,180

28 700

23 760

28 . 160

27,650

27, 160

27,350

28 500

29,820

30-860

31.630

32,640

32,730

32, 050

Sept.

31,060

30,930

30,620

30,950

30,740

29,590

23,370

27,570

26,280

24,620

23, 380

23,080

21,550

21,890

21,060

20,680

20,750

21,630

22,250

22,980

23,850

25,120

26, 440

27,280

27,040

26,540

25,950

25,700

26, 530

26,620

-

Monthly contents, in acre-feet, water year October 1939 to 

September 1940

Date

Oct. 31......................

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

Contents

115,900

128 700

-

Change In contents 

during month

-7,400

-137,700
GILA RIVER BASIN 269

Salt River at Stewart Mountain Dam, Ariz.

Location.- Water-stage recorder, lat. 33°33', long. 111°32', in SEi sec. 33, T. 3 N., 

R. 8 E., unsurveyed, in Tonto National Forest, three-quarters of a mile downstream 

from Stewart Mountain Dam and 9 miles upstream from Verde River. Datum or gage is 

1,396.33 feet above mean sea level (general adjustment of 1929).

Drainage area.- 6,220 square miles (revised). 

Records available.- October 1934 to September 1940.

Extremes (regulated).- Maximum discharge during year,, 1,730 second-feet, March 27; minimum, 7 secona-reet Feb. 7-13, Aug. 27-29.

1934-40: Maximum discharge, 3,450 second-feet Sept. 16, 1937; minimum, 3 secondfeet Jan. 8-20, 1935.

Remarks.- Records excellent except those for period of backwater from aquatic growth, 

July 17 to Sept. 19, which are good. During the year 50 discharge neasurements were 

made. Discharge completely regulated at Stewart Mountain Dam and at three other dams, 

as described under heading "Reservoir system on Salt River at and below Roosevelt Dam, 

Ariz,." (see page 268). Entire flow is diverted, for irrigation, at Granite Reef Dam, 

13 miles downstream, by Salt River Valley Water Users' Association.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

8

9

10

11

12

18

14

15

16

17

18

19

80

81

88

85

84

85

86

87

88

89

SO

51

Oct.

12

12

80

727

759

784

734

672

709

696

363

1,050

986

752

709

690

696

636

715

765

721

690

740

791

784

836

778

624

642

666

746

Hov.

734

759

810

890

67S

678

654

778

654

499

69

40

494

555

601

630

630

604

45

494

642

759

772

709

560

19

14

14

14

14

-

Dec.

14

14

14

12

11

10

10

10

10

10

10

10

10

371

595

549

245

526

734

856

643

823

586

385

354

629

830

890

1,010

1,140

59

Jan.

13

12

11

10

10

10

10

10

10

9

9

9

9

9

9

9

9

9

9

9

9

9

9

8

114

219

149

116

380

516

516

Feb.

372

14

12

11

11

10

9

7

7

7

7

7

7

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

_

-

Month

Marob.. ........... . .... .

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

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

Water year 1939-4C

Mar.

s

8

9

9

9

10

10

10

11

133

S96

715

791

883

890

890

890

896

1,060

1,080

1,200

1,370

1,360

1,210

1,280

1,580

1,590

1,060

1,050

966

965

Apr.

965

965

951

951

903

765

636

734

917

919

S96

890

930

993

1,030

1,230

1,090

1,120

1,170

1,070

958

917

924

1,060

1,070

1,100

S63

696

642

703

Secondfoot-days

21,085

14,813 

11,570

273,892

2 '609 240

22, 859

29^613

33 , 880

34,685

18,674 

16,915

235,001

Hay

869

979

9S6

1,040

993

1,040

1,000

1,030

1,030

1,010

1,040

965

910

937

1,010

1,090

1,070

917

678

607

784

830

810

804

S36

930

958

1,090

1,090

1.14Q

1,140

Ifa-Hiimi.

1,050

890

1,140

2,180

516

372

1,590

1,230

1,140

1,380

1,340 

993

1,030

1,590

June

1,090

1,030

1,030

1,110

1,130

1,200

1,140

1,020

903

958

1,220

1,330

1,340

1,330

1,260

1,250

1,290

1,290

1,380

979

1,000

1,010

1,020

1,010

1,010

1,010

1,100

1,120

1,150

1,150

July

1,140

1,120

1,120

1,120

1,120

1,110

1,100

1,090

1,100

1,090

1,090

1,090

1,110

1,100

1,050

1,080

966

903

S45

S43

930

1,110

1,340

1,300

1,280

1,280

T-,260

1,280

1,280

1,280

1,120

Minimum

12

14

10

6

8

7

8

636

607

903

843

7

10

7

Aug.

944

993

863

810

727

727

666

648

642

678

630

678

836

972

937

778

784

740

672

666

672

673

672

517

10

3

7

7

7

26

679

Mean

680

494

373

750

72»3

21.0

737

935

955

1,129

1,119 

602

564

642

Sept.

883

740

672

612

721

924

917

784

850

986

1,030

910

791

772

666

572

393

14

12

25

99

68

10

55

531

613

618

595

521

521

Run-off in 

acre-feet

41,820 29 j 380

22,950

543,200

4,440

1,210

45,340

55,650

58,740

67, 200

68,800 

37 040

33^550

466,100

9-298 February 1956

OTITED STATES DEPARTMENT OF THE INTERIOR 

Qeolog al Surrey
370 QILA. RIVER BASIN

Tonto Creek near Roosevelt, Arlz.

Location.- Staff gage, lat. 33°52', long. 111°18', In sec. 14, T. 6 N., R. 10 E., 16 

miles upstream from Roosevelt Dam and 16 miles northwest of village of Roosevelt.

Drainage area.- 841 square miles (revised). 

Records available.- October 1913 to September 1940.

Extremes.- Maximum discharge observed during year, 992 second-feet Feb. 1 (gage height, 

3.45 feet, from floodmarks); minimum observed, 0.4 second-feet June 15-17, 19-22. 

July 16.

1913-40: Maximum discharge not determined; no flow at times during the drier 

years.

Remarks.- Records for low and uniform flow fair; those for high and varying flow poor. 

Staff gage read once dally. Several small diversions above station for Irrigation. 

See page 267 for records for Salt River, which also contributes to Roosevelt Reservoir. During the year 52 discharge measurements were_made.

Cooperation.- Gage readings furnished by Salt River Valley Water Users' Association.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

5

6

7

11

14

16

17

18

19

20

81

28

88

24

25

26

27

29

Oct.

7

6

6

5

5

5

4

3

3

3

3

3

3

3

2

1

1

1

1

1

1

1

2

1

1

2

2

2

2

2

2

HOT.

2

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

4

4

4

9

17

IS

-

Dec.

11

10

10

10

10

8

s

s

7

7

7

7

7

7

7

7

7

7

7

7

7

7

S

8

10

10

10

10

10

8

8

Jan.

8

S

8

S

10

10

20

24

20

20

20

20

20

54

48

36

34

30

26

21

21

21

20

18

18

15

15

15

13

12

11

Feb.

299

2S2

427

267

206

13S

9S

7S

62

54

42

33

28

2S

25

21

16

16

16

15

13

11

11

10

10

10

9

21

40

-

-

Heath

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

te.. ......................... ............

Jtaly...................... ................

Water year!939-4C

Mar.

40

40

40

40

36

31

30

26

19

15

15

27

29

25

21

19

11

11

13

11

9

9

9

7

9

7

S

S

S

5

5

Apr.

5

10

56

56

44

38

49

44

42

33

34

29

24

20

17

17

17

17

15

12

10

9

9

8

7

7

7

7

7

7

-

Seoondfoot-days

355

16, 924. S

228.5

S97.6 

523

6,582.4

May

6

6

6

5

5

4

4

4

4

4

4

3

3

3

3

3

3

3

3

3

2

2

2

3

3

2

2

2

2

2

2

Ma-riimim

11

625

110

258 

66

427

June

2

1

1

1

2

1

1

1

1

1

.9

.8

.7

.7

.4

.4

.4

.5

.4

.4

.4

.4

.9

84

25

26

38

17

10

7

July

3

2

2

.S

.8

.5

.5

.5

.S

.8

.8

.7

.6

.6

.6

.4

.5

4

1

.7

.7

.6

.6

40

31

110

13

7

2

1

1

Wn^Tipm

7

0

.4

.6

1

.4

Aug.

1

1

.6

1

46

139

33

12

7

7

13

3

1

1

60

6

4

2

58

13

56

16

16

76

258

28

17

10

6

4

2

Hean

8.2

46.4

3

*

7.37

29.0 

17.4

1S.O

Sept.

1

1

21

32

22

66

29

10

7

4

32

14

48

17

9

6

4

14

61

16

12

12

22

15

12

10

7

6

6

7

-

Run-off in 

acre-feet

506

33,5701

204

453

1,780 

1,040

13,060

9-832 February 19S6

UHITED STATES DBPAJWHEHT OP THE INTERIOR 

Oeolcg al Survey
01LA RIVER BASIN 271

Verde River near Camp Verde, Arlz.

Location.- Water-stage recorder, lat. 34°27', long. 111°47', In sec. 1, T. 12 N.,

R. 5 E., unsurveyed, a short distance downstream from Camp Verde dam site, about 750 

feet upstream from Chasm Creek, and 9 miles southeast of Camp Verde. Datum of gage 

Is 2,874.1 feet above mean sea level (general adjustment of 1929).

Drainage area.- 5,000 square miles (Includes 344 square miles In Aubrey Valley Playa, 

a closed basin).

Records available.- April 1934 to September 1940. December 1912 to March 1920, at site 15 

miles upstream published as Verde River at Camp Verde, Arlz., drainage area 4,220 square 

miles.

Extremes.- Maximum discharge during year, 7,560 second-feet Aug. 4 (gage height, 10.2 

feet); minimum, 41 second-feet July 17.

1934-40: Maximum discharge, 97,000 second-feet Mar. 3, 1938 (gage height, 26.1 

feet), by slope-area method, verified by comparison with records for other stations 

on Verde River; minimum, that of July 17, 1940.

Remarks.- Records good except those for periods of estimated gage heights, which are fair, 

small diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to Septeml«r 1940

Day

1

2

z

4

5

6

7

8

9

10

11

13

14

16

17

18

19

20

21

B2

23

85

26

28

31

Oct.

182

176

176

173

170

167

156

145

156

153

151

148

151

148

148

148

142

145

142

142

142

142

145

145

151

148

145

148

148

140

138

HOT.

142

148

145

145

151

153

156

156

167

185

185

179

179

173

170

173

176

179

176

176

173

176

179

179

185

185

188

197

200

203

-

Dec.

200

197

197

200

200

200

203

200

203

200

200

200

200

200

203

203

200

200

194

191

191

194

200

200

206

203

200

197

197

194

188

Jan.

191

194

185

185

188

200

210

213

216

220

216

226

905

684

418

315

26S

250

240

226

223

216

210

210

206

203

197

191

185

185

185

Feb.

216

2,230

2,180

1,840

2,660

1,250

756

572

443

354

299

261

247

233

226

220

213

206

200

194

188

185

194

194

210

386

4,010

1,860

1,310

_

-

Month

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

Calendar year 1939 ......................

toy.......................................

Water year 1939-4

Mar.

9S5

833

725

561

438

350

307

276

258

258

265

268

223

200

188

182

179

182

182

173

167

165

162

151

151

156

142

135

135

138

132

Apr.

145

153

212

597

626

514

386

292

223

170

130

118

99

91

104

99

128

165

159

182

151

128

108

125

142

142

142

145

393

405

Seoondf cot-days

6,161

109,027

23 337

8,511

87,417

May

258

191

148

122

108

104

95

91

89

87

81

83

91

83

89

83

83

87

S7

89

79

79

81

97

99

104

97

95

93

89

81

Mq-Himim

206

6,600

1,040

4,010

June

S3

83ai

72

64

63

63

64

63

73

6S

6S

64

66

56

54

58

48

46

56

119

108

174

130

108

211

156

148

135

138

July

132

118

104

102

93

87

77

70

66

61

50

46

44

44

43

43

44

50

50

48

61

66

56

58

61

61

61

59

56

48

48

Minimum

1S3

50

18*5

1 "O

140

4T

Aug.

52

53

S9

476

141

105

9S

107

105

100

100

94

92

380

321

207

192

266

396

224

232

320

366

756

1,390

639

350

a280

a230

a200

a 185

Mean

199

299

284

239

Sept.

a!70

a!70

672

423

a2SO

a230

a200

a!85

192

223

195

190

1S1

162

14S

140

17S

238

292

356

338

615

265

220

198

190

175

175

1,040

470

Run-off in 

acre-feet

12,220

216,200

16,880

173,400

Peak discharge.- Feb. 27 (5 a.m.) 6,040 sec.-ft.; Aug. 4 (7:45 p.m.) 7,560 sec.-ft. 

a Computed from gage heights estimated on basis of partial record and record for station below 

East Verde River near Pine.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE IHTERIOR 

Oeolog al Surrey
272 GILA. RIVER BASIN 

Verde River below East Verde River, near Pine, Ariz.

Location.- Water-stage recorder, lat. 34°16', long. 111 041', in sec. 30, T. 11 N.,

R. 7 £., unsurveyed, 2i miles downstream from East Verde River and 15 miles southwest 

of Pine. Zero of gage is 2,401.6 feet above mean sea level (general adjustment of 

(1929).

Drainage area.- 5,610 square miles, revised (includes 344 square miles in Aubrey Valley 

Fiaya, a closed basin).

Records available.- June 1934 to September 1940.

Extremes.- Maximum discharge during year, 6,630 second-feet Aug. 4 (gage height, 10,83 

feet); minimum, 62 second-feet July 15 (gage height, 6.23 feet), affected b,-' regulation of flow of Fossil Creek by power plant.

1934-40: Maximum discharge, 110,000 second-feet Mar. 3, 1938 (gage height, 24.7 

feet), by slope-area method, verified by comparison with records for other stations 

on Verde River; minimum, 48 second-feet (regulated) July 17, 1939 (gage height, 6.22 

feet).

Remarks.- Records good. Several small diversions above station for irrigation, 

regulation by power plant, 9 miles upstream, using water from Fossil Creek.

Some

Discharge, In second-feet, water year October 1939 to September .1940

'Nty

i

?,

3

4

5

6

7

fl

9

10

11

18

13

14

15

IS

17

Ifl

19

20

sn

22

23

PA

25

SK

87

?fl &

90

31

Oct.

227

223

216

216

216

212

202

194

194

205

205

205

208

20S

1S4

19S

198

191

194

18S

191

17S

1S1

198

198

198

191

194

178

1S4

181

Nov.

188

198

198

194

191

202

212

212

227

246

242

223

227

235

227

231

231

227

216

219

219

219

219

231

231

227

223

242

262

262

-

Dec.

254

250

231

235

242

246

246

250

246

231

235

242

235

242

242

238

227

231

242

238

231

231

235

238

238

238

246

242

246

246

223

Jan.

223

235

235

231

235

242

246

262

276

267

25S

254

681

941

567

429

367

331

317

302

284

284

280

280

280

280

276

254

262

276

254

Feb.

284

2,460

2,790

1,910

2,830

1,590

1,020

785

635

531

430

401

366

345

329

318

313

299

304

294

290

280

285

290

275

324

3,460

1,970

1,450

_

-

Month

^V........ ...............................

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

Water yearl939-4C

liar.

1,070

907

806

709

57O

461

407

37S

350

318

345

350

324

2S5

258

249

224

237

245

232

220

220

217

19S

194

213

217

206

206

209

194

Apr.

213

237

232

491

752

666

512

407

340

266

224

1S7

170

164

167

174

180

224

224

241

220

224

191

184

209

213

220

194

327

537

-

Seoondfoot-days

7,417

130,139

11,222

110,081

Hay

3S3

29C

22S

180

148

161

161

157

151

142

127

116

142

14E

142

142

130

130

124

133

139

13C

133

142

136

127

142

13S

142

136

136

IffmHtimtn

262

254

7,160

1,280

3,460

June

127

119

119

124

116

114

111

111

98

101

121

119

111

10S

101

84

93

101

9S

89

119

157

169

209

170

387

272

224

194

1SC

July

ISO

174

161

139

136

133

127

119

119

111

106

93

84

82

73

84

84

S9

91

93

86

98

103

188

152

103

103

86

86

96

93

!Hy»<ppmi

223

68

£23

93

73

AUT.

93

96

96

b80

697

191

.67

Lbl

L4S

236

144

L33

L41

323

456

314

^66

34 b

582

378

1,

Mean

199

239

357

362

301

366

342

bk!V

77C

280

883

466

324

471

441

J44

Sept.

198

ISO

563

575

334

258

237

209

224

253

262

241

237

224

177

167

194

280

324

383

424

614

35C

285

249

228

217

227

766

742

"

Run-off in 

aore-feet

14,710

258,100

22,260

218,300

Peak discharge.- Feb. 27 (7 a.m.) 5,290, sec.-ft.; Aug. 4 (10 p.m.) 6,630 sec.-ft.

^t February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolcj. al Surrey
GILA RIVER BASIN 273

Verde River above Bartlett Reservoir, near Cave Creek, Ariz.

Location.- Water-stage recorder, lat. 33°37', long. 111°41', In SEi sec. 13, T. 7 N., 

 j_^ unsurveyed, 16 miles upstream from Bartlett Dam and 17 miles northeast of

Cave Creek post office, 

adjustment of 1929).

Datum of gage Is 1,829.5 feet above mean sea level (general

Drainage area.- 6,040 square miles (revised).

Records available.- September 1938 to September 1940. August to September 1889, January 

1895 to November 1899, January 1901 to February 1925, at site 38 miles downstream and 

three quarters of a mile upstream from mouth, published as Verde River near McDowell, 

Arlz. (drainage area, 6,620 square miles, revised). February 1925 to February 1939, 

at site 21 miles downstream, published as Verde River above Camp Creek near McDowell, 

Arlz. (drainage area, 6,180 square miles, revised).

Average discharge.- 15 years (1925-40), 597 second-feet.

Extremes.- Maximum discharge during year, 5,020 second-feet Feb. 27 (gage height, 8.62 

reet); minimum, 63 second-feet July 16 (gage height, 2.75 feet).

1938-40: Maximum discharge, 100,000 second-feet Mar. 3, 1938 (gage height 25.0 

feet, from floodmarks), based on ccmparlspn of peak discharge at other stations on 

Verde River; minimum, 56 second-feet, July 18, 1939 (gage height, 2.55 feet). 

Flood of Mar. 3, 1938, Is known to be the highest, at least since 1924.

Remarks.- Records excellent. Small diversions above station. Low flow slightly regulated 

Dy power plant, 45 miles above station, using water from Fossil C~eek. During the year 

102 discharge measurements were made.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

s

6

7

8

9

10

11

12

13

14

16

16

17

18

19

SO

S3.

US

89

84

25

26

27

28

29

SO

31

Oct.

264

241

237

231

228

228

212

209

198

200

206

206

206

206

209

189

203

200

195

19S

192

195

183

1S9

200

209

206

198

198

186

192

Bov.

1S9

195

203

203

200

189

19S

206

234

247

254

247

228

244

247

244

247

244

237

225

234

234

234

237

244

250

231

250

281

2S1

-

Dec.

285

278

267

244

257

257

261

261

264

257

241

247

247

247

254

257

254

234

244

244

241

241

241

247

250

244

254

257

261

257

254

Jan.

237

244

257

254

254

254

254

261

2S5

292

296

296

296

971

692

512

422

368

347

330

314

296

307

300

296

296

2S8

2S5

267

271

274

Feb.

329

1,090

3,520

2,110

2,710

2,180

1,230

865

701

589

490

421

390

361

336

320

316

316

297

301

289

2S5

285

2S2

285

278

2,280

2,440

1,660

_

-

Month

Calendar year 1939 ......................

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

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

1U7 ........ ...............................

Jtaly. .....................................

Water yearl939-4<} ......................

Mar.

1,240

989

S82

764

630

524

452

412

361

357

324

34S

353

316

289

270

259

242

252

256

245

232

228

225

209

212

225

225

212

212

212

Apr.

209

232

242

256

604

646

563

444

382

324

259

225

190

176

165

171

1S4

182

212

209

225

209

212

1S4

182

193

199

209

187

335

-

Seoondf cot-days

6,414

6, 957

7,847

136,603

10,316 

26,956

11 957

8 ) 010

4,702

^z or»c 3, 275

11,022 

9,636

111,061

Hay

412

324

267

215

176

150

150

150

14S

141

134

121

113

123

132

130

126

121

117

113

115

123

123

123

126

123

115

126

123

123

119

Maximum

264

285

9,030

971

3,520

1,240

646

412

506

271

1,240 

1,020

3,520

June

117

110

104

95

99

99

95

94

94

87

83

97

95

92

91

S6

SO

72

86

S4

80

97

134

143

213

320

506

245

209

182

-

July

165

163

156

148

130

123

119

113

106

106

101

94

S7

80

74

6S

70

69

70

72

74

74

70

83

271

146

106

97

S4

74

80

Aug.

76

76

78

107

887

349

196

163

153

146

233

143

134

220

355

361

289

245

525

445

384

350

417

502

1,070

1,240

609

408

320

282

259

Minimum Mean

183 207

18*3 232

23 * 253

61 374

2*>'~ 930

20^ 386

16: 267

113 152

7£ 133

er ice

7'' 356

17" 321

6f 3O4

Sept.

249

221

357

688

446

316

259

238

206

232

268

274

235

232

212

171

202

225

289

332

386

490

492

336

2S9

252

242

221

256

1,020

-

Rim-off in 

ao re-feet

12,720

13,800

15,560

270,900

20,460

53,470

23,720

15,890

9 330

7^910

6,500

21,360 

19,110

220,300

tc discharge.- Feb. 3 (3 a.m.) 4,740 aec.-ft.; Feb. 5 (6 p.m.) 3,210 sec.-ft. 

5,020 sec.-ft.

Feb. 27 (4:15

9-832 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeolog il Surrey
274 GILA RIVER BASIN

Bartlett Reservoir at Bartlett Dam, Arlz.

Location.- Water-stage recorder, lat. 33°49', long. 111 0 38', In sec. 34, T. 6 N., R. 7 

E., unsurveyed, at Bartlett Dam on Verde River. Datum of gage Is 1,610.00 feet 

(general adjustment of 1912) or 1,609.46 feet (general adjustment of 1929) above 

mean sea level.

Drainage area.- 6,160 square miles at Bartlett Dam.

Records available.- July 1939 to September 1940.

Bctranes.- iggg": Maximum contents during period February to September, 51,OOC acrereet sept. 16 (gage height, 118.35 feet); no storage at times.

1939-40: Maximum contents during water year, 24,900 acre-feet Feb. 11 (gage 

height, 88.19 feet); no storage at times.

Remarks.- Reservoir Is formed by concrete multiple-arch dam; storage began Feb. 5, 1939; 

dam completed In May 1939. Capacity, 182,600 acre-feet between gage-heights zero 

(sill of outlet gates) and 188.0 feet (top of spillway gates). Natural flow passing 

through reservoir when outlet gates are open prevents withdrawal of storage to gage 

height of gate sill. There Is no dead storage. Water Is used for Irrigation of 

lands below reservoir and for municipal supply.

Cooperation.- Water-stage recorder graph July 22 to Nov. 24, 1939, and capacity table 

ruralshea by Bureau of Reclamation.

Capacity table (gage height, In feet, and content^, In acre-feet) 

(Prepared by Bureau of Reclamation from surveys by that Bureau)

5

10

12

15

18

5

93

169

320

519

21

24

28

34

42

770

1,090

1,630

2,730

4,620

53

67

81

97

114

7,940

13,300

20,500

31,200

46,300

132 68,200

153 102,200

177 153,700

188 182,600

Gage height at 12 p.m., 

1939

In feet, 1939-40

Day

1

2

3

4

5

6

7

8

9

10

July

_

_

-

-

-

_

-

-

*

-

Aug.

3.48

3*6£

15.22

11.20

19.48

21.02

21.48

29.66

30.68

29.42

Sept.

17.37

16.53

15.60

16.60

17.78

19.50

49.40

64.80

69.8

74.8

Pay

11

12

13

14

15

16

17

18

19

20

July

_

_

_

-

_

.

_

-

-

-

Aug.

22.25

15.68

13.90

13.93

16.38

16.12

16.42

17.43

16.76

17.11

Sept.

76.8-

87.6

95.2

114.4

117.6

118.3

118.0

116.2

114.3

111.3

Day

21

22

23

24

25

26

27

28

29

30

31

July

_

1.76

4.08

3.49

3.18

3.13

3.60

3.70

3.70

3.54

3.53

Aug.

17.36

16.13

17.72

17.12

16.18

15.27

15.07

15.59

16. -60 16 :«

17.26-

Sept.

108.7

105.6

102.6

99.7

97.3

96.0

94.1

92.0

89. 7C

87.37

-

Note.- Intake operation faulty Sept. 8-28; gage heights obtained, from 

partial record and from, graph based on frequent determinations by means of 

level.

D«y

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

28

27

28

29

30

31

Oct.

84.74

81.33

77.68

76.03

75.04

74.18

73.25

72.83

72.05

71.25

70.50

69.74

68.96

68.29

67.85

67.13

66.66

66.58

66.44

66.30

66.19

66.07

65.84

65.19

64.69

64.20

63.68

63.10

62.61

62.04

61.42

HOT.

60.85

60.40

59.90

59.48

58.98

58.52

58.02

57.60

57.70

57.84

56.20

54.94

55.60

56.38

57.15

57.94

58.66

58.80

57.37

57.60

58.00

58.60

59.28

59.95

59.41

57.65

55.57

53.80

53.88

54.26

-

Dec.

54.64

55.00

55.35

55.22

54.40

53.06

51.27

48.63

45.30

41.78

37.27

29.57

(a)

(a)

b!6.5

23.41

27.33

30.27

32.80

35.13

37.28

39.27

41.05

42.90

44.70

42.98

38.52

27.83

(a)

(a)

20.00

Jan.

24.30

26.50

25.25

21.70

16.00

(a)

(a)

12.82

15.18

16.97

17.85

18.70

19.45

28.32

32.22

32.18

31.00

28.30

24.94

22.56

23.20

23.10

21.63

17.52

(a)

(a)

(a)

16.58

23.01

26.87

30.03

Feb.

33.21

37.57

59.13

67.57

75.97

62.65

85.35

86.56

87.32

87.92

83.19

87.87

86.72

84.83

82.92

81.49

80.94

80.41

79.56

78.03

75.81

73.88

73.70

73.38

72.78

72.06

76.87

82.98

85.05

_

-

Mar.

85.71

86.05

86.92

86.92

85.61

83.54

80.29

76.48

71.79

67.26

65.60

63.99

63.41

62.80

61.87

61.74

61.43

60.74

60.13

59.74

59.31

58.91

58.85

58.78

58.64

58.43

56.83

54. 78

52.94

51.05

48. 88

Apr.

46.38

45.23

43.10

39.70

36.31

38.53

38.07

36.67

34.42

31.18

26.59

18.27

15.22

15.35

16.85

17.05

17.74

18.18

19.30

20.58

21.81

22.68

23.52

24.04

24.23

24.62

25.20

26.99

28.30

29.65

n«y

32.62

34.22

35.18

35.71

35.69

35483

35.64

35.49

35.32

35.09

34.82

34.47

33.97

33.40

33.02

32.63

32.19

31.75

31.28

30.76

30.07

29.60

29.11

28.68

28.23

27.86

27.28

26.69

26.20

25.69

25.14

June

24.54

23.87

23.12

22.17

21.67

21.14

20.62

20.30

19.88

19.45

18.67

18.28

18.08

17.79

17.73

17.85

17.71

17.20

17.55

18.40

18.94

19.43

20.66

21.68

23.36

27.70

32.45

34.30

35.70

36.68

July

37.32

37.57

37.63

37.29

36.58

35.13

33.55

31.73

29.73

28.20

26.52

24.60

22.26

19.27

13.31

(a)

(a)

(a)

(a)

(a)

(a)

(a)

(a)

(a)

16.0

19.0

19.95

18.35

16.36

12.60

(a)

*wg.

(a)

(a)

(a)

(a)

28.27

30.72

29.89

27.68

24.48

20.00

14.20

h(a)

16.07

15.51

14.51

12.72

12.21

20.00

25.30

28.34

30.77

32.91

32.84

36.17

42.59

43.58

42.63

40.18

37.81

39.32

Sept.

40.64

41.66

43.00

47.10

46.87

49.52

49.13

47.62

45.46

43.21

41.27

39.40

37.04

34.44

31.90

28.84

28.08

29.43

28.74

28.58

29.01

28.40

28.32

24.07

25.36

25.30

25.25

24.62

24.17

31.55

a Gage height below 12.0 feet, lowest operating Intake.

b Intake plugged; gage height determined from records of Inflow and outflow and of gtite operation.

9-238 September 1937

UNITED STATES DEPARTnEHT OF THE INTERIOR 

Oeologl 1 Survey
01 LA RIVER BASIN

Contents at 12 p.m., In acre-feet, of Bartlett Reservoir at Bartlett Drra, Ariz., 1939-40

1939

Day

1

2

3

4

e

6

7

8

9

10

Aug.

-

-

333

136

636

772

817

1,910

2,090

1,870

Sept.

474

416

366

666

504

638

6,770

12,300

14,600

17, 100

Day

11

18

13

14

16

16

17

18

19

20

Aug.

894

362

269

261

406

388

408

478

431

466

Sept.

18,000

24,700

29,800

46,700

50,200

50,900

50,600

48,600

46,600

43,600

Day

21

22

23

24

25

86

27

28

29

30

31

Aug.

473

389

499

466

393

336

324

355

421

430

466

Sept.

41,100

38,300

315,700

33,300

3? ,400

30,400

29,000

87,600

25,900

24,400

-

Note.- Contents Feb. 5 to Mar. 14 and Apr. 6 to Aug. 2 was 

less than 1,000 acre-feet; Mar. 15 to Apr. 5 was less than 

8,000 acre-feet) determined from Inflow and outflow records.

D«7

1

2

S

4

5

6

7

e

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Oct.

22,700

20,700

18,600

17,700

17,200

16,700

16,300

16,000

15,700

15,300

14,900

14,500

14, 800

13,900

13,700

13,300

13,100

13,100

13,000

13,000

12,900

12,900

12,800

12,500

12,300

12,100

11,900

11,700

11,500

11,200

11,000

HOT.

10,800

10,600

10,400

10,300

10,100

9,900

9,710

9,660

9,590

9,640

9,050

8,610

8,840

9,120

9,390

9,680

9,950

10,000

9,470

9,560

9,700

9,930

10,200

10,400

10,200

9,580

8,830

8,210

8,240

8,370

-

Dee.

8,500

8,630

' 8,750

8,710

8,480

7,960

7,370

6,520

5,530

4,560

3,440

1,890

(a)

(a)

414

1,020

1,530

2,010

2,490

2,970

3,440

3,920

4,370

4,860

5,360

4,880

3,740

1,610

(a)

(a)

680

Jan.

1,180

1,410

1,240

840

380

(a)

(a)

210

330

450

510

570

630

1,680

2,370

2,370

2,140

1,680

1,200

930

1,000

980

830

480

(a)

(a)

(a)

420

980

1,460

1,970

Feb.

2,570

3,510

10,100

13,500

17,700

81,600

23,100

83, 900

24,400

24, 800

24,900

24,700

84, 000

22,800

81,600

80,800

20,500

80,200

19,700

18,800

17,600

16,600

16,500

16,300

16,000

15,700

18,200

21,700

28,900

_

-

Mar.

23,300

23,600

24,100

24, 100

23, 300

88,000

20, 100

18,000

15,500

13,400

12,700

12,000

11,800

11,500

11,200

11,100

11,000

10,700

10,500

10, 400

10,200

10,000

10,000

10,000

9,940

9,860

9,270

8,530

7,920

7,290

6,580

Apr.

5,840

5,510

4,910

4,030

3,690

3,740

3,630

3,310

2,820

2,180

1,480

540

330

340

440

450

500

530

680

730

850

940

1,030

1,090

1,120

1,160

1,240

1,480

1,680

1,910

-

««T

2,450

2,770

8,980

3,090

3,130

3,120

3,080

3,040

3,010

2,960

2,900

2,830

2,720

2,610

2,530

2,- 450

8,370

2,290

2,200

2,100

1,980

1,900

1,810

1,740

1,670

1,610

1,520

1,440

1,370

1,300

1,230

June July

1,150 3,460

1,070 3,510

990 3, 530

890 3,460

840 3,280

780 2,970

740 2,640

710 2,280

670 1,920

630 1,660

570 1, 410

540 1,160

530 900

600 620

600 230

510 (a)

500 (a)

460 (a)

490 (a)

550 (a)

590 (a)

630 (a)

740 (a)

840 (a)

1,010 380

1,590 600

2, 420 680

2,790 560

3,090 400

3,310 200

(a)

Aug.

(a)

(a)

(a)

(a)

1,680

2,090

1,950

1,590

1,150

680

280

(a)

(a)

390

360

290

200

180

680

1,250

1,690

2,100

2,510

2,490

3,190

4,780

5,050

4,790

4,150

3,570

3,930

Sept.

4,260

4,530

4,890

6,060

6,600

6,800

6,680

6,220

5,580

4,940

4,430

3,950

3,390

2,820

2,310

1,770

1,650

1,870

1,760

1,730

1,800

1,700

1,680

1,100

1,260

1,250

1,240

1,160

1,110

2,250

-

a Contents below 169 acre-feet.

Monthly gage height and contents, 1939-40

Date

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

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

Water year 1939-40.. ......

Gage height 

(feet!

87.37

54 26

48.82

31.55

_

Contents 

(acre- feet)

24, 400

680

(a)

2,250

_

Change In contents 

durli; month 

(acre-feet)

+23,900

-1,680

-22.200

a Stage below gage height of lowest operating Intake, 

to contents of 169 acre-feet. Contents on July 31 assu

rhlch co-responds 

ed to be zero.
276 GILA RIVER BASIN 

Verde River above Camp Creek, near McDowell, Ariz.

Location.- Water-stage recorder, lat. 33°47', long. 111°39', In sec. 16, T. 5 N., R. 7 E., 

unsurveyed, half a mile upstream from Camp Creek, 5.3 miles downstream froir Bartlett 

Dam, and 10 miles north of McDowell. Datum of gage Is 1,529.8 feet above irean sea 

level (general adjustment of 1929).

Drainage area.- 6,180 square miles (revised).

Records available.- February 1925 to September 1940. August to September 188S, January 

1B95 to November 1899, and January 1901 to February 1925, at site 17 miles downstream 

from present site and three-quarters of a mile above mouth.

Average discharge.- 37 years (1903-40), 784 second-feet (adjusted for storage In Bartlett Reservoir since 1939).

Extremes.- Maximum discharge during year, 2,120 second-feet (regulated) Mar. S (gage 

neignt, 7.63 feet); minimum, 3 second-feet (regulated) Dec. 22-26.

1897-1939: Maximum discharge at present site (prior to completion of Bartlett Reservoir), 95,000 second-feet Mar. 4, 1938 (gage height, 21.9 feet) from rating curve 

extended above 44,000 second-feet on basis of slope-area computation, velocity-area 

studies, logarithmic extension, and relation of mean depth to discharge per unit width, 

verified by comparison of peak discharge and total run-off of flood with peak discharge and total run-off of flood at other stations on Verde River and at stations on 

Salt and Glla Rivers; minimum, 32 second-feet July 19, 20, 1904. Maximum discharge at 

former site, 96,000 second-feet (estimated) Nov. 27, 1905.

1939-40 (regulated); Maximum discharge, that of Sept. 11, 1939, and Mar. 9, 1940; 

minimum, that of Dec. 22-26, 1940.

Remarks.- Records excellent. Small diversions above station. Flow regulated at Bartlett Dam since Feb. 5, 1939 (see p. 274). During the year 72 discharge measurements were made.

Discharge, in second-feet, water year October 1939 to September 1940

In*

1

a

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

Itt

19

SO

S3.

28

SS

84

85

86

27

88

29

30

51

Oct.

1,0901

1,280

1,360

742

517

448

479

270

377

380

375

375

375

366

298

357

302

217

210

203

203

206

213

302

310

310

306

306

302

298

298

HOT.

298

29S

290

290

290

286

282

2S6

223

171

534

524

119

97

97

97

93

146

573

175

150

101

101

101

287

597

626

614

274

223

-

Dec.

200

217

197

267

403

517

579

711

774

761

793

1,010

1,060

312

257

28

10

6

5

4

4

3

3

3

3

382

783

1,310

993

310

136

Jan.

55

52

303

443

453

350

259

237

244

248

256

263

253

263

335

495

501

574

574

463

270

278

344

443

415

290

278

242

18

7

5

Feb.

26

102

212

331

327

362

413

512

485

389

39S

504

761

97S

97S

S15

512

474

539

749

942

685

384

357

448

458

570

832

1,090

-

Month

April. ................ S^.". ............

Water year 1939-4

Mar.

1,090

968

632

746

1,050

1,180

1,400

1,490

1,650

1,530

755

730

510

44S

501

314

31S

385

380

331

331

31S

241

237

237

237

473

620

52S

517

556

Apr.

620

375

512

6S6

699

650

638

632

638

63S

63S

63S

346

200

147

158

161

164

164

161

164

164

161

155

155

155

155

91

67

144

-

Seeondfoot-days

12*041

136,269

9 211

15,833

20,703

2,719

8,719 

10,301

120,436

May

150

155

155

152

152

152

155

155

155

155

155

155

155

161

161

161

155

155

155

155

152

152

152

152

150

152

155

155

155

158

152

Mo-^nfinil

1,310

1,900

1,090

1,650

150

655 

690

1,650

June

150

144

142

136

122

117

115

106

106

104

104

97

95

95

S8

76

76

76

68

52

54

55

62

72

72

61

67

70

67

70

July

80

117

126

164

191

252

278

27S

278

220

217

213

213

206

197

120

73

6S

70

70

73

75

75

75

84

89

95

147

142

132

10S

Minimum

3

3

26

237

52

76 

73

3

A,*.

84

78

76

76

76

160

256

31S

353

362

366

249

144

126

261

375

314

256

252

200

134

152

126

383

534

495

545

568

644

655

101

Mean

422

0

388

373

546

668

90.6

281 

343

329

Sept.

84

84

84

93

194

217

290

469

540

540

560

540

540

528

474

443

333

73

306

310

323

438

551

690

240

263

237

263

267

327

-

ttan-off in 

acre-feet

23,880

270,300

31,400

41,060

5,390

17,890 

20,430

238,900

Mote.- Increase in contents in Bartlett Reservoir during calendar year 1939 was equivalent to a 

mean discharge of 0.94 second-foot; decrease during water year 1939-40 was equivalent to a mean 

discharge of 30.5 second-feet.

 298 February 1936

UNITED STATES DEPAPTOENT OF THE IHTBRIOR 

Qeolog al Survey
QILA RIVER BASIN "? 

Granite Creek near Prescott, Ariz.

Location.- Water-stage recorder, lat. 34°34', long. 112°27', In SWi sec. 26, T. 14 N., R. 

2 W., unsurveyed, at highway bridge, 2 miles north of Prescott, and 4i 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 1940.

Extremes.- Maximum discharge during year, 83 second-feet Sept. 29 (gage height, 4.36 feet); 

no now on many days.

1932-40: Maximum discharge, 2,900 second-feet Feb. 7, 1937, from rating curve extended above 1,500 second-feet; no flow during part of each year.

Remarks.- Records good. City of Prescott takes water for municipal supply from storage 

reservoirs on tributaries of creek. Water stored for Irrigation In reservoir 3 miles 

below station (capacity, about 4,000 acre-feet).

Discharge, in second-feet, water year October 1939 to September. 1940

Day

1

e

3

4

s

6

7

8

9

10

11

12.

IS

14

16

16

17

18

19

20

81

88

89

84

85

86

87

88

89

SO

SI

Oct.

1

.9

.6

.6

.6

.4

.4

.3

.4

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

HOT.

0

0

.1

0

0

0

0

0

.3

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1.1.1

Dec.

0.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

Jan.

0.1.1.1

.2

1

.3

.3

2

2

2

2

7

7

3

2

1

1

.9

.6

.4

.4

.2

.2

.S

.2

.3

.2

.2

.2

.2

.2

Feb.

39

56

33

30

25

17

14

10

7

6

6

4

4

4

4

3

3

3

2

2

2

2

3

3

3

30

23

16

14

-

Month

October. ... .

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

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

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

*£::::::::::::::::::::::::::::::::::::::

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

Water year 1939-41

Mar.

IS

15

12

9

7

7

6

4

4

4

3

3

2

2

2

2

2

1

1

2

1

1

.S

.a

.6

.5

.5

.5

.4

.4

.4

Apr.

IS

22

16

14

12

10

8

6

4

4

3

2

2

2

1

2

2

2

2

1

.9

.6

1

1

.S

.5

.9

.9

.6

.4

Seoondfoot-days

7.1

1.1

5.3

929.3

35.6

56 S

112 9

142*8

2.C

1.2

0

2

20.6

699.2

May

0.4

.2

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

.1

.1

.1.1.1.1.1

.1.1.1.1.1.1

Maximum

1

.3

.2

S5

7

56

IS

22

.4 

.1

0

2

10

56

June July

0.1.1.1

,1.1

.1

.1.1.1.1

.1.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Minimum

0

0

.1

0

.1

2

.4

.4

0

0

0 

0

0

0

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2

Mean

23

04

!l7

2.55

1.15

12.7

3.64

4.76

.08

04

0 

 06

.69

1.91

Sept.

0

3

3

0

0

0

0

0

0

0

.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4

10

0-

Run-off in 

acre-feet

14

2.2

11

1,340

71

224

233

5*2

2.4

0 

4.0

41

1,390

Peak dlacharge.- Feb. 1 (7 p.m.) 81 sec.-ft.; Feb. 2 (1:30 a.m.) 79 

4S sec.-ft.; Sept. 29 (12:30 a.m.) 63 sec.-ft.

BO.-ft.; Feb. 26 (11 a.m.)

9-898 February 19S6

UNITED STATES DEPAP^HEHT OF THE INTERIOR 

Qeolog al Surrey
278 GILA RIVER BASIN 

Oak Creek near Cornvllle, Arlz.

Location.- Water-stage recorder, lat. 34°46', long. 111°53', In SEi sec. 23, T. 16 N. 

R. 4 E., at bridge 0.2 mile upstream from Page Springs, 4 miles northeast cf Cornvllle, and 11 miles upstream from mouth. Prior to July 12, 1940, staff gage at 

same site and datum.

Drainage area.- 357 square miles.

Records available.- July to September 1940.

Extremes.- Maximum discharge during period of record, 1,200 second-feet Aug. £3 

neignt',5.25 feet); minimum, 6 second-feet July 27 (gage height, 1.98 feet).

Maximum stage known, 23 feet from floodmarks, on Mar. 3, 1938 (discharge not 

determined).

Remarks.- Records good except those for period of no gage-height record which are 

poor. Several small diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

^7

1

8

3

4

S

6

1

a

9

10

u

18

13

14

IS

16

17

18

19

80

81

88

89

84

85

86

87

88

89

SO

SI

Oct. Bov. Dec. Jan. Feb.

Month

Jan 

Fefc

Pflj,

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

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

Aug 

Sep

The perlod. .............................

Mar. Apr.

Seoondfoot-days

-

_

_

_

438

1,467 

1,573

-

May

HaxiiBuni

-

n

__

20

340 

270

-

June July

aEO

18

12

10

9

8

13

13

10

10

11

15

20

17

18

18

16

15

14

12

10

10

10

8

10

16

15

Minimum

-

_

_

_

a

14 

27

-

Aug.

14

16

17

19

19

24

22

23

20

21

23

21

45

76

24

21

18

18

19

82

31

35

158

97

340

94

42

36

34

30

28

Mean

-

_

_

_

14.1

47.3 

52.4

-

Sept.

27

161

162

49

39

36

38

35

32

30

29

41

35

30

28

28

39

56

43

37

36

38

35

35

34

32

32

32

270

52

-

Run-off in 

acre-feet

-

_

.

_

869

2,910 

3,120

6,900

Peak discharge.- Aug. 23 (7:45 p.m.) 1,200 sec.-ft.; Aug. 25 (7:30 a.m.) 1,020 sec-f1;.} Sept. 29 

(2:au a.m.) 1,050 sec-ft.

a Ho gage-height record; discharge computed on basis of weather records and records for Verde 

River at Camp Verde and Verde Hirer below East Verde River near Pine.

. - 858 February 1936

TOUTED STATES DEPARTMENT OF THB INTERIOR 

Geological Surrey
GILA RIVER BASIN 279

Diversion for city of Phoenix from Verde River, at McDowell, Arlz.

Location.- Water-stage recorder and weir, lat. 33°34', long. 111°40', in NEi sec. 30, T.

 3 N., R. 7 E., on canal, 2 miles northwest of mouth of Verde River, 3.9 miles downstream from intake,and 44 miles south of McDowell.

Records available.- February 1922 to September 1940 (monthly diversion). 

KemarKs.- waterTs diverted from infiltration galleries and shallow wells on right bank

 of Verde River in SEi sec. 6, T. 3 N., R. 7 E., three-quarters of a mile downstream 

from McDowell and 6i miles (revised) upstream from mouth of Verde River,, for municipal 

supply of Phoenix, and Is carried 29 miles to that city by pipe line. Negligible 

amount of waste occurs below point of measurement.

Cooperation.- Records collected by city of Phoenix and furnished by Salt River Valley 

water users' Association.

Monthly diversion, in second-feet, water year October 1939 to 

September 1940

Month

Calendar year 1939....

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

Water year 1939-40....

Maximum

20

39

29

3Y

46

Minimum

15

4

Op

0

Mean

17.2

22. 6

OC "I

 zn i

<ta i

26.6

Run-off in 

acre-feet

1,060

16,540

19,320

Diversions from Salt River at Granite Reef Dam, Ariz.

Location.- Water-stage recorders at heads of Arizona and South canals, which divert on 

right and left banks, respectively, at Granite Reef Dam on Salt River, in lat. 

33°31', long. 111°42', 34 miles downstream from Verde River.

Records available.- January 1913 to September 1940 (monthly diversion).

Remarks.- Records given herein are those of discharge at the two gaging stations less 

now returned from the canals to the river by wasteways between stations and 

irrigated lands. They represent the flow diverted from Salt River for irrigation. 

Discharge at gaging stations computed on basis of gage heights and frequent currentmeter measurements; flow returned to river at canal wasteways competed from records 

for rated gates or weirs. Water Is used for irrigation of lands in Salt River 

Valley in vicinity of Phoenix.

Flow at Granite Reef Dam Is regulated by Roosevelt Dam, completed in 1913, and 

three other dams on Salt River between Roosevelt Dam and mouth of Verde River (see 

p. 268), namely, Mormon Flat Dam, completed in 1925, Horse Mesa Daii, completed in 

1927, and Stewart Mountain Dam, completed in 1930, and by Bartlett Dam on Verde 

River, completed in 1939.

Cooperation.- Records furnished by Salt River Valley Water Users' Association.

Monthly diversion, in second-feet, water year October 1939 to 

September 1940

Month

Calendar year 1939....

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

Water year 1939-40....

Maximum

1,900

2,080

OQn

1,380

1,900

Minimum

225

215

952

825

253

126

(lean

rinri

701

1,055

1 339

822

907

Run-off in 

acre-feet

43,090

754,300

no *7QO

82 3X0

48,930

658,400
280 GILA RIVER BASIN

Agua Frla River near Mayer, Arlz.

Location.- Water-stage recorder, lat. 34°19', long. 112°04', In NWiSEi sec. 20, T. UN., 

R. 3 E., at Sycamore dam site, 700 feet downstream from Blgbug Creek anc1 12 miles 

southeast of Mayer. Altitude of gage, 3,434 feet (levels by Marlcopa County Municipal Water Conservation District No. 1).

Drainage area.- 588 square miles.

Records available.- January to September 1940.

Extremes.- Maximum discharge during period, 5,920 second-feet June 26 (gage height, 8.80 

feet) from rating curve extended above 700 second-feet on basis of slope-area determinations at gage heights 9.44 and 11.97 feet; minimum, 0.1 second-foot July 28-30 

and Aug. 2-3.

Remarks.- Records good except those for periods of no gage-height record an<J those above 

100 second-feet, which are fair. Diversions above station for Irrlgatlor and mining. 

Figures of dally discharge do not Include water diverted Just above station to Perry 

canal.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

6

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov.

Month

Oct< 

Hon 

Deo«

CaJ

Jam 

Pebi 

Marc 

Apr)

May 

June 

Julj 

AtJgl 

Sepl

Tt

Lendar year 

iary 1940.*......

1..............

10 perloc

Dec.

,

Jan.

aS

S 

3

3 

3 

3 

S 

S 

S

Feb.

ie

200 

a20 

a!5 

a!5

alO 

alO 

8 

6 

5

5

4 

4 

5 

5

4 

4 

4 

4 

4

4 

5 

5

4 

4

4 

3 

3 

3

Mar.

3 

3

2 

2 

2

2 

2 

2 

2 

2

2 

2 

3 

3 

3

3

3 

3 

3 

3

3 

3 

2

.5

.7

.5 

.5 

.5 

.5 

.5 

.5

Apr.

o.e

.7 

.5 

.5 

.7

.8 

.8 

.8 

.7 

.7

.7 

.8 

.8 

.8 

.5

.8

.e

.8 

.8 

.4

.5 

.4

:s 

Is

.3 

.3 

.3 

.3 

.3

May

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.4 

.4

.4 

.4

.4 

.4

14 

.4 

.4 

.5 

.5

.4 

.4

150 

50 

3

2 

2 

2

2

2

Observed

Discharge In second-feet

Seoondfootdays

89 

386 

62.2 

17.4 

223.3 

891 

29.7 

863.4 

985.9

-

Maximum

3

200 

3 

.9 

160 

560 

5 

200 

500

-

Minimum

2

3 

.5 

.3 

.3 

1 

.1 

.1 

.3

-

Mean

2.9

13.3 

2.01 

.58 

7.20 

29.7 

.96 

27.5 

32.8

-

Run-off

In 

aere-filet

177 

766 

123 

36 

443 

1,770 

69 

1,690 

1,950

T.010

June

2

2

1 

1

1

1 

1 

1 

1

1

1 

1

1 

1

1 

1

1 

1 

1

100 

50 

2 

2 

2

550 

130 

16 

10 

7

Diverted

Perry 

canal 

(acre-feet)

61 

2.0 

23 

82 

45 

0 

21 

11 

0

246

July

5

4 

3 

2 

2

2 

2

2

1 

1

1 

1

.2 

.2

.2 

.2

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2 

.1 

.1 

.1 

.2

Aug.

0.2 

.1 

.1 

.2 

6

.2 

.2 

.2

.2 

110

30 

2

150 

4

1 

30 

200 

22 

12

80 

3 

20 

110 

40

2 

2 

2

1 

1 

20

Sept.

1 

500 

20

1 

.7

.7 

.5 

.4 

.4 

2

50 

60

2 

2

2 

13 

2 

6 

.7

.5 

.4 

.3 

.3 

.3

.3 

.4

130 

180 

3

Ad-Justed for 

diversion

Run-off 

In 

acre-feet

23 

766 

146 

117 

48£ 

1,770 

8C 

1,700 

1.96C

7,260

Mean In 

second-feet

3.9 

13.3 

2.39 

1.96 

7.94 

29.7 

1.31 

27.7 

32.8

Peak discharge.- June 26 (3 p.m.) 5,920 seo.-ft.j Aug. 18 (7 p.m.) 3,630 see.-ft.5 Sept. 2 

(2130 p.m.) 5,360 sec.-ft.

a Ho gage-height record; dlsoharge computed on basis of weather records and records for station 

at Lake Pleasant Dan.
GILA RIVER BASIN 28

Agua Frla River at Lake Pleasant Daft, Arlz.

Location.- Staff gage, lat. 33°51', long. 112°16', In NWi sec. 21, T. 6 N., R. 1 E., 

at left upstream end of Lake Pleasant Dam, 24i miles upstream from mouth of New 

River. Datum of gage Is 1,431.2 feet above mean sea level (general adjustment of 

1929).

Drainage area.- 1,460 square miles.

Records available.- November 1910 to September 1924 (published as Agua Frla River near 

oiendaie, Arlz.), October 1933 to September 1940.

Extremes.- Maximum discharge known, about 105,000 second-feet Nov. 27, 1919; no flow 

during spring and summer of several years.

Remarks.- Records poor. Figures given herein represent flow Into Lake Pleasant. 

Discharge computed on basis of three factors as follows: 1. C'range In contents 

of Lake Pleasant and In contents of small reservoir behind diversion dam li 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 (revised) 

downstream from diversion dam, rated and frequently checked by a Clausen-Plerce 

weir rule; and (b) flow In time of flood as measured over diversion dam, computed 

from staff-gage readings of head and theoretical weir rating fo- the dam. 3. Loss 

from lake by evaporation, assumed as 0.7 of the evaporation measured once dally In 

3-foot-square burled land pan near left-end of Lake Pleasant Dam. Effect of bank 

storage and bank release In Lake Pleasant Is not taken Into account and therefore 

Is reflected In the record. Diversions above Lake Pleasant for Irrigation.

Cooperation.- Records collected and prepared In cooperation with the Marlcopa County 

Municipal Water Conservation District No. 1.

Monthly discharge, water year October 1939 to Septemh«r 1940

Month

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

Water year 1939-40. ...........

Bean 

(second-feet)

B OQ

8.49

35.3

13.9

Run-off 

'(acre-feet)

582

25,660

1 ftO

rjrja

10,120
282 01 LA RIVER BASIN

Lake Pleasant at Lake Pleasant Dam, Arlz.

Location.- Staff gage, lat. 33°51', long. 112°16', In NWfc sec. 21, T. 6 N., R. 1 E.,

 at left upstream end of Lake Pleasant Dam on Agua Fria River. Datum of ga^e is

1,431.2 feet above mean sea level (general adjustment of 1929). 

Drainage area.- 1,460 square miles. 

Records available.- February 1928 to September 1940. 

Extremes.- Maximum contents during year, 13,500 acre-feet Oct. 1 (gage height, 93.17

feet); no storage July 19 to Aug. 13. , -, , 

1928-40: Maximum contents, 109,000 acre-feet Apr. 4-6, 1937 (gage height, 144.98

feet); 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 I9<i7.

 Capacity, 178,000 acre-feet (revised) 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 li miles to diversion dam where it Is diverted for Irrigation near Beardsley. Figures given herein represent usatle contents In Lake Pleasant and do not include contents of small reservoir fonred by 

diversion dam.

Cooperation.- Gage-height record furnished by Maricopa County Municipal Water Conservatlon District No. 1.

Capacity table (gage height, in feet, and contents. In acre-feet)

57.0 

60.0 

65.0 

70.0 

SO.O

0

425 

1,2S5 

2,390 

5,740

90.0

100.0

110.0

120.0

130.0

11,220

19,420

30,395

46,100

65,450

140.0 69,100

150.0 115,500

160.0 144,SOO

170.0 178,000

Note.- The above table was prepared by Maricopa County Municipal 

Water Conservation District No. 1 from contour surveys made about 

1927 and adjusted by the Geological Survey for accumulated silt on 

basis of studies of inflow, outflow, and resultant changes in stage 

of reservoir; adjusted table first used Oct. 1, 1939.

Contents at 5 p.m., in acre-feet, water year October 1939 to September 19''0

Day

1

2

S

4

5

6

7

S

9

10

11

12

13

14

15

16

17

IS

19

20

21

28

23

24

25

26

27

28

29

30

31

Oct.

13,500

13,480

13,470

13,470

13,290

13,050

12,340

12,660

12,450

12,260

12,030

11,820

11,600

11,380

11,170

10,950

10,300

10,650

10,520

10,390

10,270

10,200

10,140

10,140

10,140

10,100

10,090

10,080

10,010

9,960

9,900

Nov.

9,330

9,740

9,660

9,590

9,520

9,470

9,430

9,370

9,370

9,3SO

9,270

9,240

9,190

9,130

9,080

9,030

3,990

3,930

3,910

3,900

3,880

3,340

3,300

3,770

3,740

3,710

S,7OO

3,710

3,720

3,720

-

Dec.

8,730

3,710

3,680

8,640

3,620

8,580

3,530

8,500

8,470

8,440

3,420

3,370

8,300

8,240

8,180

8,120

8,050

8,000

7,940

7,880

7,300

7,730

7,670

7,650

7,570

7,520

7,470

7,400

7,360

7,300

7,230

Jan.

7,230

7,230

7,230

7,270

7,230

7,270

7,270

7,270

7,260

7,280

7,290

7,290

7,270

7,270

7,270

7,240

7,250

7,250

7,250

7,250

7,250

7,250

7,250

7,260

7,260

7,270

7,270

7,270

7,270

7,270

7,270

Feb.

7,310

3,630

9,160

9,330

9,430

9,520

9,570

9,6OO

9,630

9,640

9,660

9,680

9,680

9,680

9,680

9,680

9,680

9,680

9,690

9,690

9,690

9,690

9,700

9,700

9,710

9,730

9,730

9,730

9,730

_

-

Mar.

9,750

9,750

9,750

9,750

9,740

9,740

9,740

9,740

9,740

9,730

9,730

9,720

9,720

9,700

9,700

9,700

9,700

9,700

9,690

9,690

9,690

9,690

9,690

9,690

9,690

9,690

9,680

9,680

9,670

9,550

9,470

Apr.

9,470

9,460

9,460

9,460

9,450

9,440

9,330

9,250

9,070

S,S40

3,610

6,250

7,390

7,530

7,160

6,830

6,480

6,130

5,320

5,360

4,990

4,720

4,360

4,040

3,720

3,450

3,110

2,350

2,640

2,510

-

n«y

2,350

2,310

2,190

2,080

1,970

1,900

1,820

1,790

1,790

1,790

1,790

1,790

1,790

1,790

1,790

1,790

1,790

1,790

1,780

1,730

1,730

1,730

1,730

1,940

2,020

2,020

2,020

2,020

2,010

2,010

2,010

June

2,010

2,000

2,000

2,000

2,000

1,990

1,990

1,990

1,930

1,980

1,930

1,970

1,970

1,970

1,960

1,960

1,950

1,950

1,940

1,940

1,930

1,940

2,000

2,000

2,000

2,000

2,550

2,640

2,660

2,660

-

July

2,650

2,650

2,500

2,400

2,350

2,170

2,010

1,340

1,660

1,430

1,3OO

1,130

942

734

593

439

247

31

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

393

527

538

538

538

722

805

808

821

357

905

1,090

1,130

1,150

1,150

1,150

1,150

1,150

Sept.

1,150

1,150

1,730

1,560

1,420

1,230

1,330

1,150

930

SIS

626

430

321

90

96

100

116

123

157

164

169

171

173

176

177

180

183

184

409

661

-

Monthly gage height and contents, water year October 1939 to September 1940

Date

Feb 29

Gage height 

(feet)

93 .-IS 

37.96 

35.99 

83.31

-

33.29 

37.68 

S7.26 

70.46 

68.41 

71.02 

56.93 

64.28 

61.49

-

Contents 

(acre-feet)

*18,500 

9,900 

3,720 

7,280

-

7,270 

9,730 

9,470 

2,510 

2,010 

2,660 

0 

1,150 

661

-

Change in contends 

during month 

(acre-feet)

-3^600 

-1,180 

-1,440

*+4,2SO

-10 

-1-2,460 

-260 

-6,960 

-5OO 

-1-650 

-2,660 

-1-1,150 

-489

-12,840

 Computed on basis of revised capacity table.
GILA RIVER BASIN 283

Hassayampa River near Morristown, Ariz.

Location.- Water-stage recorder, lat. 33°53', long. 1120 39', in SEi sec. 3, T. 6 N., 

R. 4 W., 600 feet downstream from south of San Domingo wash, 900 feet upstream 

from bridge of Atchison, Topeka _& Santa Fe railroad, and 3.0 miles northwest 

of Morristown (formerly known as Hot Springs Junction). Datum of gage Is 1,531.16 

feet above mean sea level (general adjustment of 1929).

Drainage area.- 774 square miles.

Records available.- October 1938 to September 1940.

Extremes.- 1938-39: Maximum discharge during water year, 6,200 second-feet Sept. 6 

(gage height, 8.7 feet) from rating curve extended above 1,600 second-feet on 

basis of slope-area measurement at 6,100 second-feet; no flow on many days.

1939-40: Maximum discharge during water year, 160 second-feet Feb. 1 

height, 5.9 feet); no flow on many days.

Remarks.- Records poor. Many small diversions above station for irr'gation and mining.

Discharge, In second-feet, 1938-40 

1938-39

D«y

1

Z

3

4

5

6

7

S

9

10

11 

12

13

14

15

16

17

18

19

SO

21

22

23

24:

26

2t

S7

sa

:a

50

31

Oct.

> 0.5

Nov.

.

1

1

1

1

1

1

1

1

1

0

0

1

1

1

1

Dec.

0

1

1

1

0

1

1

1

0

1

0 

0

0

1

2

3

2

1

2

230

480

20

10

5

3

3

3

3

3

3

3

Jan.

2

2

2

2

2

16

10

5

3

2

1 

1 

1

1

1

1

1

1

1

1

1

1

1

0

0

0

1

1

1

1

1

Feb.

1

1

2

2

1

1

2

3

2

3

2 

2 

2

2

2

2

4

3

2

1

1

1

2

2

2

2

2

3

_

-

Mar.

3

3

3

3

3

3

2

2

2

3

3 

3 

3

3

3

3

4

3

3

3

3

3

3

4

4

3

4

5

3

3

2

Apr.

3

2

2

1

1

1

1

1

2

1

1 

1 

0

0

0

1

1

1

1

1

1

1

1

1

1

1

0

0

0

0-

May June July

0

0

0

0

0

0

0

0

0

0

0 

0 

0

0

0

0

0

0

0

0

0

0

0

0

3

0

0

0

0

0

0

Aug.

0

0

5

0

0

13

25

15

30

15

10 

11 

3

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

0

0

0

150

56

1,200

188

7

1

0

20 

330 

110

1

0

0

0

0

0

0

0

0

0

0

45

5

2

2

1

1

"

Peajc discharge.- Dec. 20 (6:30 p.m.) 2,700 sec.-ft.; Sept. 6 (9:40 p.m.) f,200 sec.-ft.} Sept. 12 

(5 p.m.) 1,6OO sec.-ft.

Mote.- Discharge for periods of no gage-height record, Oct. 1 to Nov. 16, Dec. 23 to Jan. 4, 7-18, 

and Jan. 28 to Feb. 3 computed on basis of four discharge measurements and study, of weather records*

9-838 September 1937

UNITED STATES £, AKTMENT OF THE INTERIOR 

Geolog al Surrey
284 (JILA RIVER BASIN

Discharge, in aecond-feet, of Eassayampa River near Morristown, Ariz., 1938-40 Continued

1939-40

D«T

1

2

3

4

5

6

7

e

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Oct.

1

1

1

.6

.5

.6

.5

.5

.5

.5

.5

.6

.5

.5

.6

.5

.6

.5

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

HOT.

o.e

.5

.6

.5

.5

.6

.5

.5

16

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

15

S

2

-

Dee.

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

E

2

2

2

2

2

2

2

2

2

2

2

2

2

Jan.

2

2

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Feb.

20

15

10

5

5

4

3

2

2

2

2

2

2

2

2

2

2

2

2

2

2

1

1

1

1

1

1

1

1

-

Mar.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Apr.

0.5

.5

.5

.5

.5

.5

0

0

0

0

0

0

0

~ 00

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

May June July Aug. Sept*

0

0

10

1

1

1

1

1

0

0

3

2

1

.5

.5

.5

.5

.5

0

0

0

0

0

0

0

0

0

0

0

0

Hote.- Channel for Ion flow away from gage entire year; discharge computed on basis of 10 discharge measurements, and 14 field observations of flow, partial record during rises, and weather 

records.

Monthly discharge, in second-feet, 1938-40

Month

Calendar year 1938 .....................

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

Water year 1938-39 .....................

Calendar year 1939 . . ..................

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

Water year 1939-40 .....................

Secondfoot-ttays

QA

-

1 Ofl

3,318.5

62

2,627.0

29 0

98

315.0

Maximum

480

-

3

0

0

3

1,200

1,200

2

1,200

20

Minimum

-

2

0

0

0

0

0

0

0

2

0

0

Mean

-

2.1

2.0

3.1

.9

0

0

.1

4.1

70.6

9.09

2.0

7.20

.86

Run-off in 

acre-feet

-

127

109

188

66

0

0

6.0

254

4,200

6,590

123

5,210

CO

194

626
GILA RIVER BASIN 285

Hassayampa River near Wagoner, Arlz.

Location.- Water-stage recorder, lat. 34°18', long. 112°34', in NEiSEi sec. 9, T. 11 

N., R. 3 W., at bridge on Klrkland Junction-Wagoner road, 5i miles upstream from 

Milk Creek, and 7i miles upstream from Wagoner. Staff gage at same site and datum 

Jan. 12-20. Datum of gage Is 3,741.51 feet above mean sea level (general adjustment 

of 1929, preliminary figure).

Drainage area.- 79 square miles.

Records available.- January to September 1940.

Extremes.- Maximum diecharge during period, 171 second-feet Sept. 6 (gage height, 3.4 

reetj; minimum, 0.8 second-foot on several days.

Remarks.- Records fair. Small diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to Septenbir? 1940

Day

1

2

3

4 

S

6 

7 

8 

9 

10

11 

12 

IS 

14 

IS

16 

17 

18 

19 

80

2122

23 

84 

25

26 

27 

28 

29

SO

SI

Oct. HOT. Dec. Jan.

a2 

a2 

a2 

a2 

a2

a2 

a2 

a2 

a2 

a2

a2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2

1 

1 

1

Feb.

2

4 

3 

3 

3

2 

2 

2

3 

3

2

1 

1 

1 

1

1 

1 

1 

1 

1

1 

2 

2 

2 

2

2 

2 

2

5

Month

Dot 

HOT 

Dec

C

Jan 

Feb 

Mar 

Apr

««J 

Jun 

Jul

£* Sep

TI

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

alendar year

tie perlo i........ ......................

Mar.

3 

4

4 

4

4 

4 

4 

3 

3

2 

2 

2 

2 

2

1 

1

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1 

1

Apr.

2

1

1 

2

2 

2 

2 

2 

2

2

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1

1

1 

1 

1 

1 

1

Seoondfoot-days

59 

56 

63 

38 

31 

28.0 

29.1 

34 

63

-

May

1 

1

1 

1

1 

1 

1 

1 

1

1 

1 

1

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1 

1

M^rnim

2

4 

4 

2

1 

1 

1 

3 

9

-

June

1 

1

.9 

.9

.9 

.9 

.8 

.8 

.8

.8 

.8 

.8 

.8

.9

.9 

1

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

July

1 

.9

1 

.8

.9

1 

1 

1 

1

1

1 

1 

.9 

.9

1 

.9 

.8 

.8 

.8

.8 

.8

.9 

.9

1

1 

1 

1 

1 

1 

1

m-n^n^ni

i 

i 

i i 

i

.8 

.8 

1 

1

-

Aug.

1

1 

1 

1 

1

1

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

3

1 

1 

1 

1 

1

1

1 

1 

1 

1 

2

Mean

1.9 

1.9 

2.0 

1.3 

1.0 

.93 

.94 

1.1 

1.8

-

Sept.

1 

2

1 

1 

1

6

5 

2

1 

1

1 

1 

1

1 

1

1 

1 

1 

1 

1

1

1 

1

1 

1

1 

1 

1 

9 

2

Run-off In 

acre-feet

117 

111 

125 

75 

61 

56 

58 

67 

105

775

a Ho gage-height record; discharge computed on basis of weather records am? record for following 

days.

9-282 February 19S6

UHITH) STATES DEPAFTMEHT OF THE INTERIOR 

Oeolog al Surrey
286 GILA RIVER BASIN

Gillespie canal at Gillespie Dam, Ariz.

Location.- Water-stage recorder, lat. 33°14', long. 112°45', in SEiNEi sec. 28, T. 2 S. 

R. 5 W., 200 feet downstream from head gates at Gillespie Dam. Datum of page is 

743.91 feet above mean sea level (general adjustment of 1929).

Records available.- May 1935 to September 1940.

Extremes.- Maximum discharge during year, 208 second-feet Aug. IS (gage heigtt, 7.75 

fset); minimum daily, 19 second-feet July 31 to Aug. 4 and Aug. 13.

1935-40: Maximum discharge, 280 second-feet Aug. 18, 1936 (gage height, 7.13 

feet); minimum daily, 3 second-feet Nov. 4, 1936.

Remarks.- Records good except those for period of estimated gage heights, which are 

fair. Canal diverts water from left bank of Gila River at Gillespie Dam for irrigation near Gila Bend. For records of another diversion at this dam, see Enterprise 

canal at Gillespie Dam on following page.

Discharge, In second-feet, water year October 1939 to September 1940

"^y

i

2

3

4

5

6

7

8

9

10

11

18

15

14

15

16

17

18

19

20

21

22

23

2485

26

27

28

29

SO

31

Oct.

1O5

99

96

93

91

91

89

82

81

87

88

82

76

78

76

73

7O

70

69

70

72

76

72

70

72

76

76

72

72

76

76

Hov.

80

78

S2

64

78

80

78

80

88

96

99

98

94

93

C88

C94

c96

C94

c96

c92

c82

c86

c91

c91

c86

c84

c91

c9S

c!28

134

-

Dec.

12S

124

125

125

124

122

120

116

116

113

115

109

1O3

100

100

101

106

104

101

1OO

102

103

1O5

110

118

124

127

124

122

124

128

Jan.

131

140

142

134

128

126

128

133

133

132

130

128

127

121

126

132

133

138

137

138

142

142

139

138

140

140

139

140

147

164

171

Feb.

161

164

161

164

150

145

141

142

144

14O

135

138

140

13S

147

152

148

145

142

142

140

137

139

140

138

138

138

136

133

_

Month

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

Calendar year 1939. .....................

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

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

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

Water year 1939-4O. .....................

Mar.

13O

128

130

133

133

128

124

121

12O

120

121

120

119

114

114

79

92

112

115

114

114

116

114

115

116

115

117

US

118

118

115

Apr.

118

119

117

115

115

111

106

106

111

108

96

91

S9

8S

93

91

90

92

92

88

83

S2

84

87

83

82

84

83

84

82

-

Seoondfoct-days

2,474

2,739

3,539

35,335

4,237

4,168

3,643

2,870

1,666

675

696

1,746

1,624

50,276

May

78

76

76

75

73

77

76

70

64

65

64

59

68

50

46

46

45

45

44

46

46

46

44

42

39

37

38

37

34

35

34

Maximum

105

134

128

222

171

164

133

119

78

38

25

203

174

203

June

35

36

38

33

29

30

31

33

34

33

29

30

29

27

27

27

27

28

28

27

27

27

29

29

27

26

26

25

24

24

-

July

24

23

24

25

23

23

22

23

23

22

22

22

22

23

23

24

24

25

24

23

23

23

23

22

21

21

20

20

20

20

19

m^imim

69

78

100

12

121

133

79

82

34

24

19

19

40

19

Av«.

1

1

£

19

19

19

19

20

20

22

21

21

21

20

20

19

21

21

36

86

94

03

160

120

1

Mean

79.F

91.?

114

96. £

137

144

118

95.7

53.7

29. £

22.5

56.3

64.1

82.7

12

73

64

48

46

44

45

44

40

59

Sept.

40

42

44

44

42

40

42

41

40

40

47

48

46

42

42

42

48

57

116

174

106

64

64

60

48

46

46

46

46

43

-

Run off In 

acre-feet

r 4,910

5.430

7,020

70,080

8,400

8,270

7,230

5,690

3.300

1,740

1,380

3,460

3,220

60,050

c Computed on basis of gage heights estimated from recorded range In stage and changes In elevation of reservoir from which canal diverts.

-fS2 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeolog il Survey
GILA RIVER BASIN 287

Enterprise canal at Glllesple Dam, Arlz.

Location.- Water-stage recorder, lat. 33°13', long. 112°46', In SWjNFi sec. 28, T. 2 

s., R. 5 W., 600 feet downstream from intake at Glllesple Dam. Datum of gage Is 

732.15 feet above mean sea level (general adjustment of 1929).

Records available.- June 1935 to September 1939 (discharge measuremerts only), October 

1939 to September 1940.

Extremes.- Maximum discharge recorded, 23 second-feet Feb. l (gage height, 3.65 feet); 

minimum dally discharge recorded, 4.0 second-feet Apr. 9.

Remarks.- Records good except those for period of no gage-height record which are 

poor. Canal diverts water from right bank of Glla River at Glllesole Dam for 

Irrigation between dam, and Glla Bend. For records of another diversion at this dam, 

see Glllesple canal at Glllesple Dam, on preceding page.

Discharge, In second-foot, mtar year October 1939 to September 1940

Day

1 

8

S 

4 

S

6 

7 

8 

9 

10

11 

12 

IS 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

SI

Oct.

«9 

> 9

HOT.

9 

«9

> 9

10

_8.2

Dec.

8.5 

8.5 

8.5 

8.5 

8.5

8.5 

8.5 

8.5 

8.3 

6.3

8.5 

8.3 

7.7 

6.4 

6.4

6.6 

6.7 

6.7 

6.7 

6.7

6.7 

6.9 

7.0 

7.3 

7.7

8.1 

8.3 

8.3 

8.3 

8.3 

8.6

Jan.

9.8 

10 

10 

9.8 

9.8

9.8 

10 

10 

10 

10

10 

10 

10 

9.8 

9.8

10 

10 

10 

10 

11

11 

11 

11 

11 

10

9.0 

8.8 

8.8 

9.7 

11 

11

Fab.

10 

8.5 

7.4 

5.3 

5.3

7.8 

9.3 

9.3 

9.3 

9.3

8.8 

9.0 

9.0 

9.0 

9.7

9.7 

9.7 

9.7 

9.7 

9.8

9.8 

9.8 

9.8 

10 

10

10 

10 

9.8 

9.8

Month

Oot<

HOV<

Deo< 

Ci

Jam 

Fatn 

Man

fcrl 

June 

Julj 

Augv 

Sapl

Wi

>ber. .... . . .

«ber ..................................

tlendar year

itar year 1939-4

Mar.

9.7 

9.8 

9.8 

10 

10

10 

10 

10 

9.8 

10

10 

10 

10 

10 

10

7.8 

8.3 

10 

10 

10

10 

10 

10 

10 

10

10 

10 

10 

10

10 

10

Apr.

10 

10 

10 

10 

10

10 

10 

7.2 

4.0 

11

21 

21 

21 

11 

5.0

14 

12 

6.1 

12 

16

13 

14 

14 

14 

13

13 

13 

12 

12 

12

Seoondfoot-days

279 

270.2 

240.8

_

311.5 

264.6 

305.2 

361.3 

282.6 

242.6 

251.5 

351.5 

502.0

3,462.8

May

11 

11 

11 

11 

9.8

10 

10 

9.7 

9.5 

9.5

9.5 

9.7 

9.5 

9.2 

8.8

8.8 

8.8 

8.8 

8.8 

6.8

8.8 

8.6 

8.5 

8.3 

8.0

7.8 

8.0 

8.0 

7.8 

7.8 

7.8

jfo^Hjpim

8.6

.

11 

10 

10 

21 

11 

8.5 

8.5 

20 

12

21

June

7.6 

S.I 

S.I 

7.8 

7.7

7.8 

8.0 

S.I 

8.3 

8.3

8.3 

8.3 

8.5 

8.5 

8.5

8.5

e.s

8.3 

8.3 

8.1

e.o

8.0

e.o

7.8 

7.8

7.8 

7.8 

7.8 

8.0 

8.0

Jily

e.o 

e.o

7.8

s.o

7.8

7.7 

7.8 

8.0 

8.0 

7.8

7.3 

7.7 

7.7 

8.0 

8.1

8.3 

8.3 

8.3 

8.3

e.s

8.3 

8.3 

8.3 

8.3 

8.3

8.5 

8.5 

8.5 

8.5 

8.5 

8.3

M^nnim

6.4

_

8.8 

5.3 

7.8 

4.0 

7.8 

7.7 

7.3 

8.1 

6.9

4.0

Aug.

e.i e.i

8.1 

8.1 

8.1

8.1 

8.1 

8.1 

8.1 

9.2

11 

9.2 

9.0 

9.2 

9.2

9.8 

19 

20 

20 

18

17 

16 

13 

12 

12

11 

11 

11 

11 

11 

10

Mean

9 

7.77

_

1O.O 

9.12 

9.85 

12.0 

9.12 

8.09 

8.11 

11.3 

10.1

9.46

Sept.

10 

10 

10 

10 

10

10 

11 

11 

11 

11

11 

11 

11 

10 

10

1011

9.3 

8.3 

12

9.0 

6.9 

8.3 

9.2 

9.0

10 

11 

11 

10 

10

Run-off In 

acre-feet

553 

636 

478

-

618 

525 

605 

717 

561 

481 

499 

697 

599

6,870

 Discharge measurement.

Hote.- Discharge for period of no gage-height record, Oct. 1 to Nov. 28, computed on basis of two 

discharge measurements and fact that quantity of water diverted la so regulated aa to be nearly 

constant.

9-2S2 February 1936

UNITED STATES DEPATMEHT OF THE IHTERIOR 

Geolof. al Surrey
288 SULPHUR SPRING VALLEY

WHITEWATER DRAW BASIN

Whitewater Draw near Douglas, Ariz.

Location.- Water-stage recorder, lat. 31 021'15", long. 109°35'00", in SWiSEi sec. 10, 

T . 24 S . , R. 27 E., at bridge on U. S. Highway 80, li miles upstream from international boundary and 2 miles west of Douglas. Datum of gage is 3,887.6 feet above 

mean sea level (Arizona Highway Department bench mark) .

Drainage area.- 1,023 square miles.

Records available.- August 1911 to April 1922, June 1930 to December 1933, May 1935 to 

September 1940.

Extremes.- Maximum discharge during year, 2,750 second-feet June 24 (gage height, 10.26 

feet) ; minimum, 0.3 second-foot July 7.

1930-40: Maximum discharge, 3,450 second-feet Aug. 10, 1931 (gage height, 12.15 

feet); minimum, 0.1 second-foot May 26, June 9, 1937, July 11, 1939. 

Maximum discharge known, 4,050 second-feet (estimated) July 27, 1919.

Remarks.- Records good except those above 200 second-feet, which are fair. 

above station for irrigation.

Diversions

Discharge, in second-feet, water year October 1939 to September 1940

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.

0.8 

.7 

.7 

.7 

.7

.8 

.8 

1 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.8

1 

1

.8 

.6 

.5 

.5 

.5 

.4

HOT.

0.4 

.4 

.4 

.5 

.5

.5 

.5 

.6 

.6 

.6

.6 

.7 

.7 

.8 

.9

.9 

1 

.9 

.9 

.9

1 

1 

1 

55 '7

2

1 

1 

18 

2

Dec.

1 

1 

1 

.9 

.8

.9 

.9 

.9 

.8 

.8

.9 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

2

3

1 

.8 

.8 

.8 

.8

Jan.

0.8 

.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 

.8 

.8 

.8 

.8 

.8

Feb.

0.8 

32 

3 

7 

2

1 

.8 

.8 

.8 

.8

.9 

.9 

.9

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

.9

.8 

.8 

.8 

.8

Month

Oct 

Hot 

Dec

C

Jan 

Pet 

Max 

Apr 

Ma; 

Jun 

Jul 

Aug 

Sep

n

uapy. . 

ater year 1939-4

Mar.

0.8 

.9 

.9 

.8 

.8

.8 

.9 

.9 

.9 

.8

.8 

.8 

.7 

.7 

.8

.8 

.8 

.7 

.7 

.7

.8 

.8 

.7 

.7 

.8

.6 

.6 

.6 

.7 

.8 

.7

Apr.

0.6 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.7

.7 

.6 

.6 

.5 

.5

.5 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.6

.7 

.6 

.6 

.6 

.6

Seoondfoot-days

22.1 

112.3 

29.5

3,144.1

24.6 

66.8 

23.8 

18.6 

22.3 

802.9 

285.4 

1,248.1 

464.1

3,120.7

May

0.6 

.6 

.6 

.5 

.5

.5 

.6 

.6 

.5 

.5

.5 

.6 

.6 

.6 

.7

.6 

.7 

.8 

.7 

.8

.8 

3 

.8 

.8 

.8

.8 

.8 

.6 

.6 

.6 

.6

Maximum

1 

55 

3

644

.8 

32 

.9 

.8 

3 

402 

67 

511 

260

511

June

0.7 

.6 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.7 

.6 

.4 

.5 

.5

^*T

47 

323 

402 

11

1 

3 

1 

.7 

3

July

1 

.5 

.5 

.4 

.5

.5

.4 

.4 

.4 

.4

.4 

.4 

.5 

.5 

.6

1 

48 

67 

3

1

1 

1 

35 

6 

44

6 

26 

2 

32 

4 

1

Minimum

0.4 

.4 

.8

.1

.8 

.8 

.6 

.5 

.5 

.4 

.4 

.7 

.9

.4

Aug.

0.9 

.8 

.7 

112 

51

11 

3

1 

.7

1

46 

99 

212 

511 

36

9 

3 

2 

2

1

1 

1 

1 

1 

47

80 

4 

2 

2 

2 

4

Mean

0.71 

3.74 

.95

8.61

.80 

2.30 

.77 

.62 

.72 

26.8 

9.21 

40.3 

15.5

8.53

Sept.

3

1 

1 

1 

1

2 

1 

9 

9 

9

9 

9 

9 

9 

9

.9

1 

1 

260 

25

22 

120 

3 

2 

2

2 

2 

2 

3

1

Run-off in

acre-feet

44 

223 

59

6,240

49 

132 

47 

37 

44 

1,590 

566 

2,480 

921

6,190

Peak discharge.- June 24 (12:30 a.m.) 2,750 sec. -ft.; Aug. 13 (11:50 p.m.) 2.160 aec.-ft.

"23fe February 1936

.UNITED STATES DEPA"TMEHT OP THE INTERIOR 

al Surrey
MISCELLANEOUS DISCHARGE MEASUREMENTS 28»

In addition to the records of stream flow obtained at gaging stations in the Colorado 

River Basin and reported in the preceding pages, measurements ot flow were made at other 

points, as shown in the following table:

Miscellaneous discharge measurements In Colorado River Basin durirg water year 

October 1939 to September 1940

Qreen River Basin

Date

Sept. 21

June 12

Stream

Green River. .....

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

Tributary to or 

diverting fromColorado River .....

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

Locality

Sec. 22, T. 15 N., R. 107 W. , at 

Green River, Wyo.

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

Discharge 

(sec. -ft.)

605

1,310

Little Colorado River Basin

Apr. 19

Mar. 21

May 9

Sept . 21 

Nov. 4

Oct. 4 

Nov. 4

Dec. 4

Jan, 4

Hay 2

Little Colorado 

River.

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

Woodruff canal . . .

Chevelon Irrigation Co. 's 

canal .

Clear Creek... ... 

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

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

Colorado River .....

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

Silver Creek. ...... 

Chevelon Pork. .....

Little Colorado 

River.

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

200 feet below outlet of Lyman 

Reservoir.

below outlet of Lyman Reservoir.

See. 17, T. 12 K., R. 28 E., below 

Salado Springs, 5 miles southwest 

of St. Johns, Ariz.

NWi sec. 32, T. 16 N. , R. 22 E. , 250 

feet below diversion dam that Is 

control for station on Silver 

Creek near Woodruff, Ar.'z. 

Wi sec. 23, T. 18 N. , R. IV E. , at 

diversion dam 2 miles b'low station on Chevelon Pork n^ar 

Wins low, Arlz.

SWi sec. 3,'T, IS N. , R. 16 E. , at 

mouth, 1 mile below diversion dam 

that Is control for station on 

Clear Creek near Winslon, Arlz.

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

4.06

e

n*

7.18 

7 44

12 3

9 65

4.6S 

1.32

1.6V

3 54

20.8

Gila River Basin

Nov. 20

Mar. 30

May 1

Feb. V 

Dec. 21 

May 21

July 11

Glla River.... ...

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

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

Hogollon Creek . . . 

Warm Springs ..... 

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

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

Colorado River .....

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

Glla River. ........ 

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

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

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

W| sec. 21, T. 19 S,, R 

above head of Sunset 

miles east of Dune an,

Nj sec. 31, T. 14 S., R 

mile above mouth and 

northeast of Gila, N. 

SWi sec. IV, T. 3 S., R 

1,VOO feet downstream 

Coolidge Dam.

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

. 20 W. , 

ca-ial, 13 

A-lz.

. 16 W. , i 

6j miles 

Mex. 

. IS E. , 

f-om

9V. 9

12V

V4.6 

.45

.49
E90 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Colorado River Basin during water year 

October 1939 to September 1940 Continued

Glla River Basin Continued

Date

Oct. 2

29

24

May 13

May 13

20

Stream

San Pedro canal . .

cooopepatlve 

canal.

Sonolta Creek....

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

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

Tributary to or 

diverting fromSan Pedro River. ....

Santa Cruz River. . . .

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

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

Locality

SWi sec. 23, T. 5 S., R. 15 E., at 

mouth of San Pedro River, 1 mile 

nest of Winkelman, Arlz.

about 200 feet below diversion 

dam that Is control for station 

on Glla River near Laveen, Arlz.

Sec. 21, T. 22 S., R. 15 E., at 

station near Patagonia, Arlz.

Sec. 20, T. 22 S., R. 15 B. , at 

site of former gaging station, 

2,700 feet below station near 

Patagonia, Arlz.

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

Discharge 

(sec. -ft.)

0.4

9 59

.45

1.34

.43
INDEX

Accuracy of field data and computed

results..........................

Acre-foot, definition of...............

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

Agencies other than Geological Survey, 

records collected by.............

Agua Pria River at Lake Pleasant Dam,

Ariz.............................

near Mayer, Ariz.....................

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

Williams Elver near..................

All-Amerlcan canal above Pilot Knob

wasteway, Calif..................

below Pilot Knob wasteway, Calif.....

near Imperial Dam, Calif.............

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

Taylor River at......................

Anlmas River at Durango, Colo..........

at Farmlngton, N. Mex................

at Howardsville, Colo................

near Cedar Hill, N. Mex..............

Arapaho Creek below Monarch Lake, Colo. 

Aravaipa Creek near Peldman, Ariz......

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

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

Page

1

201

281 

280 

214 

21?

31

70

67

176

178

175

177

36

252

133

57

Bardine, Colo., East Muddy Creek neai 77

Bartlett Reservoir at Bartlett Dam,

Ariz............................ 274-275

Bayfield, Colo., Los Plnos River near.. 173 

Beaver Creek near Daniel, Wyo.......... 92

Bicknell, Utah, Fremont River near..... 152

Big Piney, Wyo., Cottonwood Creek near. 95

Middle Piney Creek near.............110-111

South Piney Creek near............... 108

Big Sandy, Wyo., East Fork near........ 96

Sliver Creek near.................... 97

Big Sandy Creek near Big Sandy, Wyo...113-114 

Blacks Fork near Lyman, Wyo............ 120

near Millburna, Wyo.................. 117

near Urie, Wyo......................118-119

Blanoo, N. Mex., San Juan River near... 156 

Blue River at Dillon, Colo............. 53

near Kremmling, Colo................. 54

Bluff, Utah, San Juan River near....... 159

Blythe, Calif., Palo Verde canal near.. 217 

Boulder, Wyo., New Fork near........... 100

Boulder Creek near Boulder, Wyo........ 107

Boulder Dam, Ariz.-Nev., Colorado

River below...................... 22

Lake Mead at......................... 19-21

Bright Angel Creek near Grand

Canyon, Ariz..................... 208

Burnt Fork at Burntfork, Wyo........... 126

Buzzard Creek near Collbran, Colo...... 64

near Heiberger, Colo.................. 63

Calva, Ariz., 0-ila River at............ 226

Cameo, Colo., Colorado River near...... 15

Plateau Creek near................... 62

Camp Verde, Ariz., Verde River near.... 271

Cascade Creek near Tacoma, Colo........ 180

Cave Creek, Ariz., Verde River near.... 273

Cebolla Creek at Powderhorn, Colo...... 74

Cedar Hill, N. Mex., Animas River near. 177

Cedaredge, Colo., Leroux Creek near.... 78

Surface Creek above.................. 79

Surface Creek at.. ........'......,.... 80

Charleston, Ariz., San Pedro River at.. 249

Cherry Creek near Red Mesa, Colo....... 186

Chevelon Fork near Winslow, Ariz....... 202

Chevelon Irrigation Co.'s canal, Ariz.,

discharge measurements of........ 289

Chromo, Colo,, Little Navajo River at.. 167

Navajo River near.................... 165

Chrysotile, Ariz., Salt River near....265-266

Cisco, Utah, Colorado River near....... 16

Clark, Colo., Elk River at............. 129

Clear Creek, Ariz., discharge

measurement of................... 289

Clear Creek near W'.nslow, Ariz......... 2K

Clifton, Ariz., Gila River near........ 22;

San Francisco Rirer at............... 24^

Collbran, Colo., Buzzard Creek near.... 6J

Plateau Creek near................... 6]

Colona, Colo., Uncompahgre Rivar at.... 8]

Colorado-New Mexico State line.

La Plata River at................ 184

Colorado River aqueduct near Parker

Dam, Ariz.-Cslif................. 2ie

Colorado River at Glenwood Springs,

Colo............................. 14

at Lees Ferry, Ariz.................. 17

at Hot Sulphur Springs, Colo......... 13

at Needles, Calif.................... 23

at Yuma, Ariz........................ 30

below Boulder Dam, Ariz.-Sev......... 22

below Parker Dam, Ariz.-Calif........ 2£

near Cameo, Colo..................... IS

near Cisco, Utah..................... 16

near Granby, Colo.................... 12

near Orand Canyon, Ariz.............. 18

near Grand Lake, Colo................ 11

near Picacho, Calif.................. 29

near Topock, Ariz.................... 24-25

Colorado River Indian Reservation,

diversion for, near Parker, Ariz. 217 

Colorado River main stem, gagingstatioo recoris on............... 11-35

Computations, accuracy of results of... 3

Congress, Ariz., Da*;e Creek near....... 215

Continental, Ariz., Santa Cruz River at 256

Control, definition of................. 1

Coolidge Dam, Ariz., Gila River below.. 229 

San Carlos Reservoir at.............227-228

Cooperation, record of................. 10

Cora, Wyo., Duck Crsek at.............. 103

Lake Creek near...................... 102

New Fork near........................ 98

Willow Creek near.................... 101

Cornville, Ariz., Oak Creek near....... 278

Cottonwood Creek (Duchesne River Basin)

near Orangeville, Utah........... 149

Cottonwood Creek (Green River Basin)

near Big Piney, Wyo.............. 95

near Daniel, Wyo..................... 94

Crystal River near Redstone, Colo...... 59

Currant Creek near Frultland, Utah..... 140

Daniel, Wyo., Beaver Creek near........ 92

Cottonwood Creek rear................ 94

Green River near..................... 89

Horse Creek near.'.................... 93

Data, accuracy of...................... 3

explanation of....................... 1-3

Date Creek near Congress, Ariz......... 215

Delta, Colo., Poubldeau Creek near..... 83,84

Uncompahgre River at................. 82

Dillon, Colo., Blue River at........... 53

Snake River at....................... 55

Tenmile Creek at..................... 56

Dixon, Wyo., Little Snake River near... 130

Dolores River at Dolores, Colo......... 86

at Gateway, Colo..................... 88

near McPhee, Colo.................... 87

Dome, Ariz., Gila River near........... 234

Douglas, Ariz., Whitewater Draw near... 288

Duchesne, Utah, Stravberry River at.... 139

Duchesne River at Duchesne, Utah....... 136

at Myton, Utah....................... 137

near Hanna, Utah..................... 134

near Tabiona, Utah................... 135

Duck Creek at Cora, Wyo................ 103

Duncan Valley, N. Me'.-Ariz., diversions from Gila River in......... 222

Durango, Colo., Animixs River at........ 176

Florida River near................... 182

Llghtner Creek near.................. 181

East Fork near Big Sandy, Wyo. .... 96

291
292 INDEX

Page 

"'ast Mancos River near Mancos, Colo.... 190

East Muddy Creek near Bardine, Colo.... 77

East River at Almont, Colo............. 70

Edith, Colo., Navajo River at.......... 166

Elk River at Clark, Colo............... 129

Elkhorn, Wyo., Little Sandy Creek

near............................115-116

Enterprise canal at Gillespie Dam,

Arlz............................. 287

Fall Creek near Plnedale, Wyo.......... 106

Farmington, N. Ilex., Aninas River at... 178 

La Plata River near.................. 185

San Juan River at.................... 157

Feldman, Arlz., Aravalpa Creek near.... 252

Florence, Arlz., Glla River at......... 231

Florence-Casa Grande canal near

Florence, Arlz................... 253

Florence Junction, Ariz., Queen

Creek near....................... 254

Florida River near Durango, Colo....... 182

Fontenelle Creek near Fontenelle, Wyo.. 112

Fraser, Colo., Middle Fork of

Ranch Creek near................. 46

North Fork of Ranch Creek near....... 45

Ranch Creek near..................... 42,43

St. Louis Creek near................. 41

Fraser River at Granby, Colo........... 39

near Winter Park, Colo............... 38

Fremont River near Blcknell, Utah...... 152

near Fremont, Utah..................150-151

Fremont River Basin, gaging-atat ion

records in......................150-152

Frultland, Utah, Currant Creek near.... 140

Gallup, N. Mex., Puerco River at....... 200

Gateview, Colo., Lake Fork at.......... 75

Gateway, Colo., Dolores River at....... 88

Gila River at Calva, Ariz.............. 226

at Kelvin, Ariz...................... 230

at New Mexico-Arizona State line,

near Virden, N. Mex.............. 221

below Blue Creek, near Virden,

N. Mex........................... 220

below Coolidge Dam, Arlz............. 229

below Gllleaple Dam, Ariz...........233-234

discharge measurements of............ 289

diversions from. In Duncan Valley,

N. Mex.-Ariz,.................... 222

diversions from, in Safford Valley,

Ariz............................. 225

near Clifton, Arlz................... 223

near Dome, Ariz...................... 234

near Florence, Arlz.................. 231

near Glla, N. Mex.................... 218

near Laveen, Ariz.................... 232

near Red Rock, tt. Mex................ 219

near Solomonsville, Arlz............. 224

Glla River Basin, Ariz.-N. Mex.,

discharge measurements in.......289-290

? aging-station records in...........218-287 lesple Dam, Arlz., Enterprise

canal at......................... 287

Glla River below....................233-234

Glllespie canal at................... 286

Gillespie canal at Gillespie Dam, Ariz. 286 

Glenwood, N. Mex., San Francisco

River near....................... 243

Glenwood Springs, Colo., Colorado

River at......................... 14

Roaring Fork at...................... 58

Granby, Colo., Colorado River near..... 12

Fraser River at...................... 39

Strawberry Creek near................ 49

Willow C reek near.................... 37

Grand Canyon, Ariz., Bright Angel

Creek near....................... 208

Colorado River near.................. 18

Grand Falls, Ariz., Little Colorado

River at......................... 198

Grand Lake, Colo., Colorado River near. 11 

Grand Junction, Colo., Gunnison

River near....................... 69

Granite Creek near Preseott, Arlz...... 277

Granite Reef Dam, Ariz., diversions

from Salt River at............... 279

Green River at Green River, Utah....... 91

discharge measurements of............ 289

near Daniel, Wyo..................... 89

Green River near Linwood, Utah......... 90

Green River Basin, Wyo., discharge

measurements in.................. 289

gaglng-station records in............89-149

Gunnison, Colo., Tomiehi Creek at...... 72

Gunnison River at lola, Colo........... 68

near Grand Junction, Colo............ 69

North Fork of, near Somerset, Colo... 76

Eanna, Utah, Duchesne River near.......

Hassayampa River near Morristown,

Ariz............................283-

near Wagoner, Arlz...................

Helberger, Colo., Buzzard Creek near... 

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

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

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

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

Hot Sulphur Springs, Colo.,

Colorado River at.*...... .. .

Eowardsvllle, Colo., Animaa River at... 

Hunt, Arlz., Little Colorado River

near............................19^

Huntlngton Creek near Huntington, Utah.

134

 284 

285 

63 

147 

125 

183

196

148

Ignacio, Colo., Los Pinos River at..... 174 

Imperial Dam, Calif., All-Amerlcan

canal n ear....................... 31

Indian Service cooperative canal,

Arlz., discharge measurements of. 290 

lola, Colo., Gunnison River at......... 68

Kahnah Creek near Whitewater, Colo.... 

Kelvin, Ariz., Glla River at..........

Kremmllng, Colo., Blue River near.....

85

230

54

La Plata River at Colorado-Hew Mexico

State line....................... 184

at Hesperus, Colo.................... 183

near Farmington, N. Mex.............. 185

Lake Creek near Cora, Wyo.............. 102

Lake Fork (tributary to Sunnlson River)

at Gateview, Colo................ 75

Lake Havasu near Parker Dam,

Ariz.-Calif...................... 26-27

Lake Mead at Boulder Dam, Arlz.-Nev.... 19-21

Lake Pleasant at Lake Pleasant Dam,

Arlz............................. 282

Lake Pleasant Dam, Arlz., Agua Frla

River at......................... 881

Laveen, Arlz., Glla River near......... 232

Santa Cruz River near................ 259

Leal, Colo., Williams River near....... 51

Lees Ferry, Arlz., Colorado River at... 17 

Parla River at....................... 191

Leroux Creek near Cedaredge, Colo...... 78

Llghtner Creek near Durango, Colo...... 181

Lily, Colo., Little Snake River near... 131 

Linwood, Utah, Green River near........ 90

Henrys Fork at....................... 125

Little Colorado River above Zuni River,

near Hunt, Arlz.................. 195

at Grand Falls, Arlz................. 198

at St. Johns, Arlz................... 194

discharge measurements of............ 289

near Hunt, Arlz...................... 196

near St. Johns, Ariz................. 192

near Woodruff, Arlz.................. 197

Little Colorado River Basin, Arlz.,

discharge measurements in........ 289

gaging-statlon records 'in...........172-207

Little Navajo River at Chromo, Colo.... 167

Little Sandy Creek near Elkhorn, Wyo..115-116 

Little 3nake River near Dixon, Wyo..... 130

near Lily, Colo...................... 131

Littlefleld, Arlz., Virgin River at.... 21G

Los Pinos River at Ignacio, Colo....... 174

near Bayfleld, Colo.................. 173

near Wemlnuche Pass, Colo............ 172

Lyman, Wyo., Blacks Fork near.......... 120

Lyman Reservoir near St. Johns, Arlz... 193

MeDowell, Ariz., diversion for city

of Phoenix from Verde River at... 279

Verde River near..................... 276

HcPb.ee, Colo., Dolores River near...... 87

Mammoth, Arlz., San Fedro River near... 250

Mancos, Colo., East Manooa River near.. 190

Middle Manooa River near............. 189
INDEX 293

Hancos, Colo., West Hancos River near.. 

Manoos River near Towaoo, Colo. ........

Mason, Wyo., North Plney Creek near.

Page

187

188

109

Maybell, Colo., Yampa River near....... 138

Mayer, Ariz., Agua Frla River near..... 380

Meadow Creek near Tabernash, Colo...... 48

Keeker, Colo., White River near........ 143

Middle Mancos River near Stances, Colo. . 189 

Middle Piney Creek near Big Piney,

Wyo. ............................ 110-111

Millburne, Wyo., Blacks Fork near. ..... 117

Mineral Creek near Silverton, Colo..... 179

Moddle canal at New Mexico-Arizona

State line, near Virden, H. Mex. . 239 

near Virden, N. Hex. ........... ..... 238

Moenkopi Wash near Tuba, Ariz. ....... .205-207

Mogollon Creek, N. Mex. , discharge

measurement of. .................. 289

Monarch Lake, Colo., Arapaho Creek

below. ........................... 36

Morristoim, Ariz., Hassayampa River

near. ........................... 383-384

Mountain Home, Utah, Rock Creek near.,. 138 

Myton, Utah, Duohesne River at......... 137

Navajo River at Edith, Colo. ........... 166

near Chromo, Colo.. ..................

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

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

New Fork near Boulder, Wyo. ............

near Cora, Wyo.. .....................

near Plnedale, Wyo. ..................

Nogales, Ariz., Santa Cruz River near..

North Plney Creek near Mason, Wyo......

Oak Creek near Cornville, Ariz.. 

Ohio, Colo., Quartz Creek near,. 

Orangeville, Utah, Cottonwood

Creek near................

165

33

141

100

98

99

355

109

Pagosa Springs, Colo., Piedra

River near...................

Rio Blanco near..................

Rito Blanco near.................

San Juan River at................

San Juan River near..............

Turkey Creek near................

Weminuche Creek near.............

West Fork of San Juan River near. 

Williams Creek near.

... 163

164

154

... 153

163

171

..160,161

170

Palo Verde canal near Blythe, Calif.... 317

Palominas, Ariz., San Fedro River at... 348 

Pantano Wash near Tucson, Ariz......... 364

Parla River at Lees Ferry, Ariz........ 191

Parker, Ariz., diversion for Colorado.

River Indian Reservation near.... 317

Parker Dam, Ariz.-Calif., Colorado

River aqueduct near.............. 316

Colorado River below................. 28

Lake Havasu near..................... 36-27

Parshall, Colo., Williams River near... 53 

Patagonia, Ariz., Sonoita creek near... 260 

Peridot, Ariz., San Carlos River near.. 

Pioaoho, Calif., Colorado River near... 

Piedra River near Pagosa Springs, Colo.

near Piedra, Colo....................

Pilot Knob wasteway, Calif., AllAmerican canal above.............

All-American canal below.............

Pine, Ariz., Verde River near..........

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

Pine River. See Los Pinos River. 

Plnedale, Wyo., Fall Greek near........

New Fork near........................

Pine Creek at........................

Pole Creek near......................

Planet, Ariz., Williams River at.......

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

near Collbran, Colo..................

Pole Creek near Plnedale, Wyo..........

Powderhom, Colo., Cebolla Creek at....

Prescott, Ariz,, Granite Creek near....

Price River above Soofield Reservoir,

near Scofield, Utah..............

near Heiner, Utah....................

near Scofield, Utah..................

Publications on stream flow by

Geological Survey................4-7, 9

by State agencies.................... 7-8

Puerco River at Qallup, N. 

near Adamana, Ariz......

Quartz Creek near 01"o, Colo........

Queen Creek near Florence Junction, 

Ariz..........................

Page 

800 

201

73

354

Ranch Creek above forks, near

Fraser, Colo..................... 42

near Fraser, Colo.................... 43

near Tabemash, Colo................. 44

Middle Fork of, near Fraser, Colo.... 46

North Fork of, neer Fraser, Colo..... 45

Ranch Creek, South F-rk of, near

Winter Park, Colo................ 47

Raven, Colo., West IIvide Creek near... 60 

Red Mesa, Colo., Cherry Creek near..... 186

Red Rock, N. Hex., Qlla River near..... 219

Redstone, Colo., Crystal River near.... 59

Rillito, Ariz., Santa Cruz River at.... 258

Rillito Creek near Tucson, Ariz........ 262

near Wrightstown, Ariz............... 261

Rio Blanco near Pagosa Springs, Colo... 163 

Rito Blanco near Pagosa Springs, Colo.. 164 

Roaring Fork at Aspe-i, Colo............ 57

at Qlenwood Springs, Colo............ 58

Robertson, Wyo., East Fork of Smith

Fork near.......................131-133

West Fork of Smith Fork, near.......133-124

Rock Greek near Mountain Home, Utah.... 138

Roosevelt, Ariz., Salt River near...... 267

Tonto Creek near..................... 270

Roosevelt Dam, Ariz., reservoir system

on Salt River at and below....... 268

Rosa, N. Hex., San Jian River at....... 155

Roubldeau Greek at miuth, near

Delta, Colo...................... 84

near Delta, Colo..................... 83

Run-off in inches, definition of....... 1

Sabino Creek near Tursson, Ariz......... 263

Safford Valley, Ariz., diversions

from Gila Rive- in............... 225

St. Johns, Ariz., Little Colorado

River at......................... 194

Little Colorado River near........... 193

Lyman Reservoir nenr................. 193

St. Louis Creek near Fraser, Colo...... 41

Salt Creek near Winslow, Ariz.......... 204

Salt River at Stewart Mountain Dam,

Ari z............................. 269

diversions from, at Granite Reef

Dam, Ariz........................ 379

near Chrysotile, Ariz...............265-266

near Roosevelt, Ariz................. 267

reservoir system or, at and below

Roosevelt Dam, Ariz.............. 368

San Carlos Reservoir at Coolidge Dam,

Ariz............................327-228

San Carlos River near Peridot, Ariz.... 247

San Francisco River rt Clifton, Ariz... 244 

near Qlenwood, N. l'«x................ 243

San Juan River at Farmington, N. Mex... 157 

at Pagosa Springs, Colo.............. 154

at Rosa, N. Hex...................... 156

at Ship Rock, N. Mex................. 158

near Blanco, N. Mej.................. 156

near Bluff, Utah..................... 159

near Pagosa Springs. Colo............ 153

West Fork of, above Boms Lake, near

Pagosa Springs, Colo............. 160

near Pagosa Springs, Colo.......... 161

San Juan River Basin, gaglng-station

records in......................153-190

San Pedro canal, Ariz., discharge

measurements of.................. 390

San Pedro River at Charleston, Ariz.... 349

at Palominas, Ariz................... £48

at Winkelman, Ariz.......... f, ....... 351

near Mammoth, Ariz.. '. ................ 250

San Simon Creek near San Simon, Ariz... 345 

near Solomonsvllle, Ariz............. 246

Santa Cruz River at Continental, Ariz.. 356 

at Rillito, Ariz..................... 258

at Tucson, Ariz...................... 257

near Laveen, Ariz.................... 359

near Nogales, Ariz................... 255

Santa Maria River near Alamo, Ariz..... 314

Sargents, Colo.. Tomlohi Creek at...... 71
294 INDEX

Page 

Scofield, Utah, Price River near......145,146

Second-feet pep square mile,

definition of.................... 1

Second-foot, definition of............. 1

Seeond-foot-day, definition of......... 1

Ship Rock, N. Mex., San Juan River at.. 158 

Shriver canal at Vlrden, N. Mex.......240-241

Silver Creek (Green River Basin) near

Big Sandy, Wyo................... 97

Silver Creek (San Juan River Basin)

near Woodruff, Ariz.............. 199

Silverton, Colo., Mineral Creek near... 179 

Slater Fork near Slater, Colo.......... 132

Smith Fork, East Fork of, near

Robertson, Wyo..................121-122

West Fork of, near Robertson, Wyo...123-124 

Snake River at Dillon, Colo............ 55

Solomonsville, Ariz., Oila River near.. 224 

San Simon Creek near................. 246

Somerset, Colo., North Fork of

Gunnison River near.............. 76

Sonoita Creek, Ariz., discharge

measurements of.................. 290

Sonoita Creek near Patagonia, Ariz..... 260

South Piney Creek near Big Pinsy, Wyo.. 108 

Springdale, Utah, North Fork of

Virgin River near................ 211

Stage-discharge relation,

definition of.................... 1

Steamboat Springs, Colo., Yampa

River at......................... 127

Steelman Creek, Colo., Williams

River below...................... 50

Stewart Mountain Dam, Ariz., Salt

River at......................... 269

Strawberry Creek near Granby, Colo..... 49

Strawberry River at Duchesne, Utah..... 139

Sunset canal above New Mexico-Arizona

State line, near Virden, N. Mex.. 236 

near Virden, S. Mex.................. 235

Sunset canal wastsway near Virden,

N. Mex........................... 237

Surface Creek above Cedaredge, Colo.... 79

at Cedaredge, Colo................... _80

Tabernash, Colo., Meadow Creek near.... 48

Ranch Creek near..................... 44

Tabiona, Utah, Duchesne River near..... 135

Tacoma, Colo., Cascade Creek near...... 180

Taylor Park Reservoir at Taylor

Park, Colo....................... 65

Taylor River at Almont, Colo........... 67

below Taylor Park Reservoir, Colo.... 66

Tenmile Creek at Dillon, Colo.......... 66

Terms, definition of................... 1

Tomichi Creek at Gunnison, Colo........ 72

at Sargents, Colo,................... 71

Tonto Creek near Rooaevelt, Ariz....... 270

Topoek, Ariz., Colorado River near..... 24-S5

Towaoc, Colo., Mancos River near....... 188

Tuba, Ariz., Moenkopi Wash near.......205-207

Tucaon, Ariz.,' Pantano Waah near....... 264

Rillito Creek near................... 262

Sablno Creek near.................... 263

Santa Cruz River at.................. 257

Turkey Creek near Pagosa Springs, Colo. 162

Uinta River near Neola, Utah........... 141

Unoompahgre River at Colona, Colo...... 81

at Delta, Colo............. '. ......... 82

Urie, Wyo., Blacks Pork near..........118-119

Valley canal near Virden, N. Mex....... 242

Vasquez Creek near Winter Park, Colo... 40 

Verde River, diversion for city of

Phoenix from, at MeDowell, Ariz.. 279

Page 

Verde River near Camp Verde, Ariz...... 271

near Cave Creek, Ariz................ 273

near MeDowell, Ariz.................. 276

near Pine, Arl z ...................... 272

Vernal, Utah, Ashley Creek near........ 133

Virden, H. Mex., Gila River near......220,221

Moddle canal near...................238,239

Shriver canal at.................... 240-241

Sunset canal near...................235,236

Sunset canal wasteway near..........'. 237

Valley canal near.................... 242

Virgin River at Littlefield, Ariz...... 210

at Virgin, Utah...................... 209

North Fork of, near Springdale, Utah. 211 

Virgin River Basin, gaging-station

records in......................209-211

Wagoner, Ariz., Hassayampa River near.. 

Warm Springs, Arlz., discharge

measurements of..................

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

Weminuche Creek near Pagosa Springs,

Colo.............................

Weminuche Pass, Colo., Los Pinos River

near.............................

West Divide Creek near Raven, Colo.....

West Mancos River near Itancos, Colo....

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

near Watson, Utah.

Whiteroeks River near Whiteroeks, Utah. 

Whitewater, Colo., Kahnah Creek near... 

Whitewater Draw near Douglas, Ariz.....

Williams Creek near Pagosa Springs,

Colo.............................

Williams River (tributary above Green

River) below Steelman Creek, Colo. 

near Leal, Colo......................

near Parshall, Colo..................

Williams River (Williams River Basin)

at Planet, Ariz..................

near Alamo, Ariz.....................

Williams River Basin, gaging-station

records in......................218

Willow Creek (tributary to Colorado

River) near Granby, Colo".........

Willow Creek (tributary to New Fork)

near Cora, Wyo...................

Winkelman, Ariz., San Pedro River at...

Winter Park, Colo., Fraser River near..

South Fork of Ranch Creek near.......

Vasquez Creek near...................

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

Clear Creek near.....................

Salt Creek near......................

Woodruff, Ariz., Little Colorado River 

near.............................

Silver Creek near....................

Woodruff canal, Ariz., discharge

measurement of...................

Work, divis ion of......................

scope of.............................

Wrightstown, Ariz., Rillito Creek near.

Yampa River at Steamboat Springs, Cola. 

near Maybe11, Colo...................

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

Yuma main canal at siphon-drop power 

plant near......................

below Colorado River siphon at.....

Yuma main canal wasteway at..........

Yuma main canal at siphon-drop power

plant, near Yuma, Ariz...........

below Colorado River siphon, at

Yuma, Ariz.......................

Yuma main canal wasteway at Yuma, Arir.

285

289

144

172

60

187

143

144

142

85

288

50

51

52

213

212

101

251

38

47

40

202

203

204

197

199

289

10

1

261

127

128

30

O