DEPARTMENT OF THE INTERIOR

UNITED STATES GEOLOGICAL SURVEY

QEORHE OTI8 .SMITH, DIRECTOR

WATER-SUPPLY PAPER 249

SURFACE WATER SUPPLY OF THE 

UNITED STATES

1907-8

PART IX. COLORADO RIYER BASIH

PREPARED UNDER THE DIRECTION OF M. 0. LEIGHTON

BY

W. B. FREEMAN AND R. H. BOLSTER

WASHINGTON

GOVERNMENT PRINTING OFFICE 

1910
DEPARTMENT OF THE INTERIOR

UNITED STATES GEOLOGICAL SURVEY

GEORGE OTIS SMITH, DIRECTOR

WATER-SUPPLY PAPER 249

SURFACE WATER SUPPLY OF THE 

UNITED STATES

1907-8

PART IX. COLORADO RIVER BASIN

PREPARED I NDER THE DIRECTION OF M. 0. LEIGHTON

BY

W. B. FREEMAN AND R. H. BOLSTER

Water Resources Branch,

Geological Survey,

Box 3 1 06, Cap'.tc* Nation

Oklahoma Cf»y, O^.*.

WASHINGTON

GOVERNMENT PRINTING OFFICE

1910
CONTENTS.

Introduction.............................................................. 7

Authority for investigations............................................. 7

Scope of investigations.................................................. 8

Purposes of the work.................................................. 9

Publications.......................................................... 10

Definition of terms..................................................... 13

Convenient equivalents................................................ 14

Explanation of tables................................................... 15

Field methods of measuring stream flow................................. 16

Office methods of computing and studying discharge and run-off.......... 21

Accuracy and reliability of field data and comparative results............ 26

Use of the data........................................................ 27

Cooperation and acknowledgments....................................... 28

Division of work...................................................... 29

Colorado River drainage basin.............................................. 30

General features....................................................... 30

Colorado proper and Green River........................................ 36

Green River at Greenriver, Utah................................... 36

Colorado River at Hardyville, Ariz................................. 39

Colorado River at Yuma, Ariz...................................... 41

Sal ton Sea near Sal ton, Cal......................................... 46

Duchesne River drainage basin...................................... 54

Description.................................................... 54

Duchesne River at Myton, Utah................................. 56

Strawberry River in Strawberry Valley, Utah................... 61

Strawberry River at Theodore, Utah............................ 62

Lake Fork below Forks near Whiterocks, Utah................... 63

Lake Fork near Myton, Utah................................... 67

Uinta River near Whiterocks, Utah............................. 71

Uinta River at Fort Duchesne, Utah............................. 73

Whiterocks River near Whiterocks, Utah......................... 77

Price River near Helper, Utah..................................... 79

Grand River drainage basin............................................ 82

Description........................................................ 82

North Fork Grand River near Grand Lake, Colo...................... 86

Grand River near Granby, Colo.................................... 89

Grand River at Sulphur Springs, Colo............................... 91

Grand River near Kremmling, Colo................................. 95

Grand River near Wolcott, Colo.................................... 98

Grand River at Glenwood Springs, Colo.............................. 101

Grand River at Palisades, Colo...................................... 105

North Inlet to Grand Lake at Grand Lake, Colo...................... 108

Grand Lake Outlet at Grand Lake, Colo............................. 110

Fraser River at Granby, Colo........................................ 113

3
4 CONTENTS.

Colorado River drainage basin Continued.

Grand River drainage basin Continued. Page.

Williams Fork near Sulphur Springs, Colo........................... 117

Blue River near Kremmling, Colo. ................................ 121

Eagle River basin................................................ 124

Eagle River near Eagle, Colo................................... 124

Eagle River at Gypsum, Colo.................................. 125

Roaring Fork basin............................................... 128

Description.................................................. 128

Roaring Fork near Emma, Colo................................ 128

Roaring Fork at Glenwood Springs, Colo........................ 130

Frying Pan River at Basalt, Colo............................... 133

Crystal River near Carbondale, Colo............................ 135

Gunnison River drainage basin.................................... 136

Description.................................................. 136

Gunnison River at River Portal, Colo.......................... 139

Uncompahgre River near Ouray, Colo........................... 142

Uncompahgre River at Fort Crawford, Colo...................... 143

Uncompahgre River at Montrose, Colo.......................... 145

Uncompahgre River near Delta, Colo........................... 149

San Juan River drainage basin......................................... 152

Description...................................................... 152

San Juan River at Turley, N. Mex.................................. 154

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

Animas River at Aztec, N. Mex. .................................. 158

La Plata River at La Plata, N. Mex................................ 161

Little Colorado River drainage basin.................................... 163

Description........................................................ 163

Little Colorado River at St. Johns, Ariz............................ 163

Little Colorado River at Woodruff, Ariz............................ 165

Little Colorado River at Holbrook, Ariz............................. 167

Silver Creek at Snowflake, Ariz.................................... 169

Chevelon Fork near Winslow,-Ariz.................................. 171

Clear Creek near Winslow, Ariz..................................... 172

Gila River drainage basin............................................. 174

Description. . .................................................... 174

Gila River near Cliff, N. Mex....................................... 176

Gila River near Redrock, N. Mex.................................. 176

San Francisco River at Alma, N. Mex.............................. 177

Santa Cruz River near Nogales, Ariz............................... 180

Santa Cruz River and ditches at Tucson, Ariz...................... 181

Salt River basin.................................................. 183

Description.................................................. 183

Salt River at Roosevelt, Ariz.................................. 183

Salt River at McDowell, Ariz.................................. 186

Verde River at McDowell, Ariz................................. 191

Miscellaneous measurements in Green River drainage basin.............. 195

Miscellaneous measurements in Grand River drainage basin.............. 196

Miscellaneous measurements in Virgin River drainage basin............. 197

Index.................................................................... 199
ILLUSTRATIONS.

Page.

PLATE I. A. Current-meter rating station at Los Angeles, Gal.; B, Bridge station and cross section of stream illustrative of 0.2 and 0.8 depth 

method....................................................... 18

II. Price penta-recording meters...................................... 22

III. Graphic method of determining daily discharge..................... 26

IV. A, Snow and ice conditions on Colorado mountain streams; B, The 

Continental Divide near Tolland, Colo., elevation 11,666 feet 

above sea level................................................. 32

V. A, Intake gates on California side of the Laguna dam, Yuma project, 

Arizona; B, Measuring section on Whiterocks River near Whiterocks, Utah..................................................... 42

VI. A, Salton Sea near Salton station, Southern Pacific Railroad, 205 

feet below sea level, August 29, 1906; B, New River cutting back 

and undermining its banks, causing destruction of many acres of 

fine farm lands................................................. 50

VII. A, Falls on Roaring Fork, Colorado; B, Diversion dam of Animas

Power Company on Cascade Creek above Durango, Colo........... 128

VIII. A, Torrence Falls, Gunnison River canyon, Colorado; B, Gunnison 

River from gaging station, showing east end of Gunnison tunnel, 

Uncompahgre project, Colorado.................................. 138

IX. A, Flood passing over Roosevelt dam, Salt River project, Arizona; 

B, Transmission line through Salt River valley, power developed 

at Roosevelt dam.............................................. 180

X. A, Granite Reef dam, showing both intakes, Salt River project, 

Arizona; B, Measuring section on Grand River at Glen wood 

Springs, Colorado.............................................. 182

5
SURFACE WATER SUPPLY OF THE COLORADO RIVER

BASIN, 1907-8.

By W. B. FREEMAN and R. H. BOLSTER.

INTRODUCTION.

AUTHORITY FOR INVESTIGATIONS.

This volume contains results of flow measurements made on certain streams in the United States. The work was performed by 

the water-resources branch of the United States Geological Survey, 

either independently or in cooperation with organizations mentioned 

herein. These investigations are authorized by the organic law of 

the Geological Survey (Stat. L., vol. 20, p. 394), which provides, 

among other things, as follows:

Provided that this officer [the Director] shall have the direction of the Geological 

Survey and the classification of public lands and examination of the geological structure, mineral resources, and products of the national domain.

Inasmuch as water is the most abundant and most valuable 

mineral in nature, the investigation of water resources is included 

under the above provision for investigating mineral resources. The 

work has been supported since the fiscal year ending June 30, 1895, 

by appropriations in successive sundry civil bills passed by Congress 

under the following item:

For gaging the streams and determining the water supply of the United States, and 

for the investigation of underground currents and artesian wells, and for the preparation of reports upon the best methods of utilizing the water resources.

The various appropriations that have been made for this purpose 

are as follows:

Annual appropriations for the fiscal year ending June 30 

1895............................................................... $12, 500

1896............................................................... 20, 000

1897 to ]900, inclusive............................................. 50, 000

1901 to 3902, inclusive............................................. 100, 000

1903 to 1906, inclusive............................................. 200, 000

1907............................................................... 150,000

1908 to 1910, inclusive............................................. 100, 000

7
8 SUEFACE WATER SUPPLY, 1907-8. 

SCOPE OF INVESTIGATIONS.

These investigations are not complete nor do they include all the 

river systems or parts thereof that might purposefully be studied. 

The scope of the work is limited to that which can be provided with 

the appropriations available. The field covered and the character 

of the work are believed to be the best that could be accomplished 

under the controlling conditions. It would undoubtedly be of more 

scientific importance and ultimately of more practical value if the 

money now applied to wide areas were concentrated on a few small 

basins. Such a course is impossible because general appropriations 

made by Congress are applicable to all parts of the country. Each 

part demands its proportionate share of the benefits.

It is essential that records of stream flow shall be maintained during a period of years sufficient to cover all stages, in order that within 

reasonable limits the entire range of flow from the absolute maximum 

to the absolute minimum may be determined. The length of such a 

period manifestly varies for different streams and can not be absolutely determined. Experience has shown that the records should 

cover from five to ten years, or for some streams twenty years or 

more, the limit being determined by the relative importance of the 

stream and the interdependence of the results and other long-time 

records on adjacent streams.

In the performance of this work the Geological Survey endeavors 

to approach as nearly as possible the highest degree of precision 

which a rational expenditure of time and a judicious expenditure of 

a small amount of money will allow. In all engineering work there 

is a point of refinement beyond which it is needless and wasteful to 

proceed, and this principle applies with especial force to stream-flow 

measurements. It is confidently believed that with some unavoidable exceptions the stream-flow data presented in the publications of 

the Survey are sufficiently accurate for all practical purposes. Many 

of the records are, however, of insufficient length, owing to the unforeseen reduction of appropriations and consequent abandonment of 

many stations. All persons are cautioned to exercise the greatest 

care in the utilization of such incomplete records.

Records of varying lengths have been obtained at about 1,400 different points in the United States, and in addition the surface water 

supply of small areas in Seward Peninsula and the Yukon-Tanana 

region, Alaska, has been investigated. During 1907 and 1908 regular 

gaging stations were maintained by the Survey and cooperating 

organizations at about 740 points in the United States, and in addition numerous miscellaneous measurements were made. Data were 

also obtained in regard to precipitation, evaporation, storage reservoirs, river profiles, and water power in many sections of the country. 

These data will be made available in the regular surface water-supply 

papers and in special papers from time to time.
INTRODUCTION. 9 

PURPOSES OF THE WORK.

Among the purposes for which the results contained in this volume 

are requisite are navigation, irrigation, domestic water supply, water 

power, swamp and overflow land drainage, and flood prevention. 

The demands of all these interests are immediate.

Navigation. The Federal Government has expended more than 

$250,000,000 for the improvement of inland navigation and.prospective expenditures will approximate several times this amount. 

It is obvious that the determination of stream flow is necessary to 

the intelligent solution of the many problems involved.

Irrigation. The United States is now expending $42,000,000 on 

federal irrigation systems, and this amount is far exceeded by the 

private expenditures of this nature in the arid West. The integrity of 

any irrigation system is based absolutelv on the amount of water j o «/ *;

available. Therefore investigations of stream flow in that portion 

of the country are of first importance in the redemption of the lands, 

as well as constituting an insurance of federal and private investments.

Domestic water supply. The highest use of "water is that of domestic supply, and while the federal interest in this aspect of the 

matter is less direct than in the aspects already named this use of 

water nevertheless has so broad a significance with respect to the 

general welfare that the Federal Government is ultimately and intimately concerned.

Water power. The time is rapidly approaching when the development of the water power of the country will be an economic necessity. 

Our stock of coal is being rapidly depleted and the cost of steam 

power is increasing accordingly. Industry will cease its growth if 

cheap power is not available, and in that event the United States as a 

nation will cease to progress. Water power is the only avenue now 

open. When the electric transmission of power was accomplished, 

the relation of our water powers to national economy changed entirely. Previous to the day of electric transmission the importance 

of a water power was largely confined to the locality at which it was 

generated, but it has now become a pubilc utility in which the individual citizen is vitally interested. Inasmuch as the amount of 

water power that may be made available is dependent on the flow 

of rivers, the investigation of flow becomes a prerequisite in the 

judicious management of this source of energy.

Drainage of swamp and overflowed lands. More than 70,000^000 

acres of the richest land in this country are now practically worthless, or of precarious value, by reason of overflow and swamp conditions. When this land is drained it becomes exceedingly productive and its value increases many fold. Such reclamation would 

add to the national assets at least $700,000,000. The study of runoff is the first consideration in connection with drainage projects.
10 SURFACE WATER SUPPLY, 1907-8.

If, by the drainage of a large area into any particular channel that 

channel becomes so gorged with water which it had not hitherto been 

called upon to convey that overflow conditions are created in places 

where previously the land was not subject to inundation, then drainage results merely in an exchange of land values. This is not the 

purpose of drainage improvement.

Flood prevention. The damage from floods in the United States 

exceeds $100,000,000 annually and in the year 1908 the aggregate 

damage, based on reliable data, approximated $250,000,000. Such 

an annual tax on the property of great regions should be reduced in 

the orderly progress of government. It goes without saying that any 

consideration of flood prevention must be based on a thorough 

knowledge of stream flow, both in the contributing areas which furnish the water and along the great lowland rivers.

PUBLICATIONS.

The data on stream flow collected by the United States Geological 

Survey since its inception have appeared in the annual reports, 

bulletins, and water-supply papers. Owing to natural processes of 

evolution and to changes in governmental requirements, the character 

of the work and the territory covered by these different publications, 

has varied greatly. For the purpose of uniformity in the presentation of reports a general plan has been agreed upon by the United 

States Reclamation Service, the United States Forest Service, the 

United States Weather Bureau, and the United States Geological 

Survey, according to which the area of the United States has been 

divided into twelve parts, whose boundaries coincide with certain 

natural drainage lines. The areas so described are indicated by the 

following list of papers on surface water supply for 1907 and 1908. 

The dividing line between the North Atlantic and South Atlantic 

drainage areas lies between York and James rivers.

Papers on surface water supply of the United States, 1907-8.

Part.

I

II

III

IV

V

No.

241

242

243

244

245

Title.

North Atlantic coast.

South Atlantic coast and eastern Gulf

of Mexico.

Ohio River basin.

St. Lawrence River basin.

Upper Mississippi River and Hudson 

Bay basins.

Part.

VI

VII

VIII

IX

X

XI 

XII

No.

246

247

248

249

250

252

Title.

Missouri River basin.

Lower Mississippi River basin.

Western Gulf of Mexico.

Colorado River basin.

Great Basin.

California. 

North Pacific coast.

The following table gives the character of data regarding stream 

flow at regular stations to be found in the various publications of the 

United States Geological Survey exclusive of all special papers. 

Numbers of reports are inclusive and dates also are inclusive so far 

as the data are available.
INTRODUCTION. 11

Stream-flow data in reports of the United States Geological Survey. 

[Ann.= Annual Report; B.= Bulletin; W. S.= Water-Supply Paper.]

Report.

10th Ann., pt. 2........

llth Ann.,pt. 2. .......

12th Ann.,pt. 2........

14th Ann., pt. 2........

B.131..................

16th Ann., pt. 2........ 

B. 140.. ................

W. S. 11...............

18th Ann., pt. 4........

W. S. 15...............

W. S. 16...... .........

19th Ann., pt. 4........ 

W. S.27............... 

W.S. 28.. .............

20th Ann., pt. 4........

W. S. 35 to 39..........

W. S. 47 to 52..........

22d Ann., pt. 4. ........

W. S. 65,66............

W. S. 75.... ...........

W. S. 82 to 85..........

W. S. 97 to 100... ......

W. S. 124 to 135........

W. S. 165 to 178........

W. S. 201 to 214........

W. S. 241 to 252........

Character of data.

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

Descriptive information only . . .................................

discharge (also many data covering earlier years).

(also similar data for earlier years).

States, eastern Mississippi River, and Missouri River above 

* junction with Kansas.

sippi River below junction of Missouri and Platte, and western United States. 

Descriptions, measurements, ratings, and monthly discharge 

(also some long-time records). 

Measurements, ratings, and gage heights, eastern United States, 

eastern Mississippi River, and Missouri River.

western United States.

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

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

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

Year.

1884 to Sept.,

1890. 

1884 to June 30,

1891.

1892. 

1888 to Dec. 31,

1893. 

1893 and 1894.

1895.

1896.

1895 and 1896.

1897.

1897.

1897. 

1898. 

1898.

1898.

1899. 

1899.

1900.

1900.

1901.

1901.

1902.

1903.

1904.

1905.

1906.

1907-8.

NOTE. No data regarding stream flow are given in the 15th and 17th annual reports.

The records at most of the stations discussed in these reports 

extend over a series of years. An index of the reports containing 

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

The first table which follows gives, by years and drainage basins, the 

numbers of the papers on surface water supply published from 1899 

to 1908. Wherever the data for a drainage basin appear in two 

papers the number of one is placed in parentheses and the portion of 

the basin covered by that paper is indicated in the second table. For 

example, in 1904 the data for Missouri River were published in WaterSupply Papers 130 and 131, and the portion of the records contained 

in Water-Supply Paper 131, as indicated by the second table, is that 

relating to Platte and Kansas rivers.
12 SURFACE WATER SUPPLY, 1907-8.

Numbers of ivater-supply papers containing results of stream measurements, 1899-1908.

Atlantic coast and eastern 

Gulf of Mexico: 

New England rivers ..... 

Hudson Kiver to Delaware River, inclusive. . 

Susquehanna River to 

York River, inclusive. 

James River to Yadkin

San tee River to Pearl

Mississippi River:

Upper Mississippi River.

Lower Mississippi River.

Pacific coast and Great Basin:

South Pacific coast to 

Klamath River, inclu1899."

35 

35 

35 

(35), 36

36 

36

36 

36

(36), 37

37 

37

(37), 38

(38), 39 

38

1900.6

47 

47,(48)

48 

48

48 

49

48,(49) 

49

49, (50)

50 

50

50 

51

51

51

1901.

65,75 

65,75 

65,75 

65,75

65,75 

65,75 

66,75

65,75 

65,75

66,75

/ (65), 

\ 66, 75 

66,75

66,75 

66,75

66,75 

66, 75

1902.

82 

82 

82 

(82),83

83 

(82),83 

85

83 

83

84

|(83),84 

84

85 

85

85 

85

1903.

97 

97 

97 

(97),98

98 

97 

100

98 

98, (99)

99

(98),99 

99

100 

100

100 

100

1904.

124 

125 

126 

126

127 

129 

130

128 

/ 128, 

I (130) 

/ 130, 

1 (131) 

/ (128), 

\ 131 

132

/ 133, 

\ (134) 

/ 133, 

\ (134)

134 

135

1905.

165 

166 

167 

167

168 

170 

171

169 } "' 

} , 

(169), 

173 

174

175, 

(177) 

176, 

(177)

177 

/ (177), 

\ 178

1906.

201 

202 

203 

203

204 

206 

207

205

207

208

(205), 

209 

210

211, 

(213) 

212, 

(213)

213 

| 214

1907-8.

241 

241 

241 

242

242 

244 

245

243 

245

246

\ 247 

248

249, 

(251) 

250, 

(251)

251 

252

a Rating tables and index to Water-Supply Papers 35-39 contained in Water-Supply Paper 39. 

b Rating tables and index to Water-Supply Papers 47-52 and data on precipitation, wells, and irrigation 

in California and Utah contained in Water-Supply Paper 52.

Numbers of water-supply papers containing data covering portions of drainage basins.

No.

35

3fi

37

3*

39

48

49

50

65

82

83

97

98

99 m

130

131

134

16<<

177

261

River basin. Tributaries included.

junction with Platte.

Do.

The order of treatment of stations in any basin in these papers is 

downstream. The main stem of any river is determined on the
INTRODUCTION. 13

basis of drainage area, local changes in name and lake surface being 

disregarded. After all stations from the source to the mouth of the 

main stem of the river have been given, the tributaries are taken up 

in regular order from source to mouth. The tributaries are treated 

the same as the main stream, all stations in each tributary basin 

being given before taking up the next one below.

The exceptions to this rule occur in the records for Mississippi 

River, which are given in four parts, as indicated above, and in the 

records for large lakes, where it is often clearer to take up the streams 

in regular order around the rim of the lake than to cross back and 

forth over the lake surface.

DEFINITION OF TERMS.

The volume of water flowing in a stream the "run-off" or "discharge' ' is expressed in various terms, each of which has become 

associated with a certain class of work. These terms may be divided 

into two groups: (1) Those which represent a rate of flow, as secondfeet, gallons per minute, miner's inches, and run-off in second-feet 

per square mile, and (2) those which represent the actual quantity 

of water, as run-off in depth in inches and acre-feet. They may be 

defined as follows:

"Second-foot" is an abbreviation for cubic foot per second and is 

the rate of discharge of water flowing in a stream 1 foot wide, 1 foot 

deep, at a rate of 1 foot per second. It is generally used as a fundamental unit from which others are computed by the use of the factors 

given in the following table of equivalents.

"Gallons per minute" is generally used in connection with pumping 

and city water supply.

The "miner's inch" is the rate of discharge of water that passes 

through an orifice 1 inch square under a head which varies locally. 

It is commonly used by miners and irrigators throughout the West 

and is defined by statute in each State in which it is used.

"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 the drainage area would 

be covered if all the water flowing from it in a given period were 

conserved and uniformly distributed on the surface. It is used for 

comparing run-off with rainfall, which is usually expressed in depth 

in inches.

"Acre-foot" is equivalent to 43,560 cubic feet, and is the quantity 

required to cover an acre to the depth of 1 foot. It is commonly 

used in connection with storage for irrigation work.
14 SURFACE WATER SUPPLY, 1907-8. 

CONVENIENT EQUIVALENTS.

The following is a list of convenient equivalents for use in hydraulic 

computations :

1 second-foot equals 40 California miner's inches (law of March 23, 1901). 

1 second-foot equals 38.4 Colorado miner's inches. 

1 second-foot equals 40 Arizona miner's inches.

1 second-foot equals 7.48 United States gallons per second; equals 448.8 gallons per 

minute; equals 646,272 gallons for one day.

1 second-foot equals 6.23 British imperial gallons per second.

1 second-foot for one year covers 1 square mile 1.131 feet or 13.572 inches deep.

1 second-foot for one year equals 31,536,000 cubic feet.

1 second-foot equals about 1 acre-inch per hour.

1 second-foot for one day covers 1 square mile 0.03719 inch deep.

1 second-foot for one 28-day month covers 1 square mile 1.041 inches deep.

1 second-foot for one 29-day month covers 1 square mile 1.079 inches deep.

1 second-foot for one 30-day month covers 1 square mile 1.116 inches deep.

1 second-foot for one 31-day month covers 1 square mile 1.153 inches deep.

1 second-foot for one day equals 1.983 acre-feet.

1 second-foot for one 28-day month equals 55.54 acre-feet.

1 second-foot for one 29-day month equals 57.52 acre-feet.

1 second-foot for one 30-day month equals 59.50 acre-feet.

1 second-foot for one 31-day month equals 61.49 acre-feet.

100 California miner's inches equal 18.7 United States gallons per second.

100 California miner's inches equal 96.0 Colorado miner's inches.

100 California miner's inches for one day equal 4.96 acre-feet.

100 Colorado miner's inches equal 2.60 second-feet.

100 Colorado miner's inches equal 19.5 United States gallons per second.

100 Colorado miner's inches equal 104 California miner's inches.

100 Colorado miner's inches for one day equal 5.17 acre-feet.

100 United States gallons per minute equal 0.223 second-foot.

100 United States gallons per minute for one day equal 0.442 acre-foot.

1,000,000 United States gallons per day equal 1.55 second-feet.

1,000,000 United States gallons equal 3.07 acre-feet.

1,000,000 cubic feet equal 22.95 acre-feet.

1 acre-foot equals 325,850 gallons.

1 inch deep on 1 square mile equals 2,323,200 cubic feet.

1 inch deep on 1 square mile equals 0.0737 second-foot per year.

1 foot equals 0.3048 meter.

1 mile equals 1.60935 kilometers.

1 mile equals 5,280 feet.

1 acre equals 0.4047 hectare.

1 acre equals 43,560 square feet.

1 acre equals 209 feet square, nearly.

1 square mile equals 2.59 square kilometers.

1 cubic foot equals 0.0283 cubic meter.

1 cubic foot equals 7.48 gallons.

1 cubic foot of water weighs 62.5 pounds.

1 cubic meter per minute equals 0.5886 second-foot.

1 horsepower equals 550 foot-pounds per second.

1 horsepower equals 76.0 kilogram-meters per second.

1 horsepower equals 746 watts.
INTRODUCTION. 15

1 horsepower equals 1 second-foot falling 8.80 feet. 

1J horsepower equal about 1 kilowatt.

, ,, -11 Sec.-ft.Xfall in feet To calculate water power quickly: jT =net horsepower on water

wheel realizing 80 per cent of theoretical power.

EXPLANATION OF TABLES.

For each drainage basin there is given a brief description of 

general conditions covering such features as area, source, tributaries, topography, geology, conditions of forestation, rainfall, ice 

conditions, irrigation, storage, power possibilities, and other special 

features of importance or interest.

For each regular current-meter gaging station are given in general, 

and so far as available, the following data: Description of station, 

list of discharge measurements, table of daily gage heights, rating 

table, table of monthly and yearly discharges and run-off. For 

stations located at weirs or dams the gage-height and rating tables 

are omitted and a table of daily discharge is substituted. For 

stations where the flow is computed by shifting-channel methods, s 

table of daily discharge is given in place of rating tables, which are 

not used in these methods of computation.

In addition to statements regarding the location and installation 

of current-meter stations the descriptions give information in regard 

to any conditions which may affect the constancy of the relation of 

gage height to discharge, covering such points as ice, logging, shifting 

conditions of flow, and backwater; also full information regarding 

diversions which decrease the total flow at the measuring section. 

Statements are also made regarding the accuracy and reliability of 

the data.

The discharge-measurement table gives the results of the discharge 

measurements made during the year, including the date, name of 

hydrographer, width and area of cross section, gage height, and 

discharge in second-feet.

The table of daily gage heights gives the daily fluctuations of the 

surface of the river as found from the mean of the gage readings 

taken each day. At most stations the gage .is read in the morning 

and in the evening. The gage height given in the table represents 

the elevation of the surface of the water above the zero of the gage. 

All gage heights during ice conditions, backwater from obstructions, 

etc., are published as recorded, with suitable footnotes. The rating 

is not applicable for such periods unless the proper correction to 

the gage heights is known and applied. Attention is called to the 

fact that the zero of the gage is placed at an arbitrary datum and has 

no relation to zero flow or the bottom of the river. In general, the 

zero is located somewhat below the lowest known flow, so that 

negative readings shall not occur.
16 SURFACE WATER SUPPLY, 1907-8.

The discharge measurements and gage heights are the base data 

from which the rating tables and monthly-discharge tables are 

computed.

The rating table gives, either directly or by interpolation, the 

discharge in second-feet corresponding to every stage of the river 

recorded during the period for which it is applicable. It is published 

to enable engineers to determine the daily discharge by its application to the table of gage heights or to check results in the table 

of monthly discharge.

In the table of monthly discharge the column headed "Maximum" 

gives the mean flow, as determined from the rating table, for the day 

when the mean gage height was highest. As the gage height is the 

mean for the day, it does not indicate correctly the period when the 

water surface was at crest height and the corresponding discharge 

consequently larger than given in this column. Likewise, in the 

column of "Minimum" the quantity given is the mean flow for the 

day when the mean gage height was lowest. The column headed 

"Mean" is the average flow in cubic feet for each second during the 

month. On this the computations for the remaining columns, which 

are defined on page 13, are based.

FIELD METHODS OF MEASURING STREAM FLOW.

There are three distinct methods of determining the flow of openchannel streams: (1) By measurements of slope and cross section 

and the use of Chezy's and Kutter's formulas; (2) by means of a 

weir or dam; (3) by measurements of the velocity of the current and 

of the area of the cross section. The method chosen depends on the 

local -physical conditions, the degree of accuracy desired, the funds 

available, and the length of time that the record is to be continued.

Slope method. Much information has been collected relative to the 

coefficients to be used in the Chezy formula, v=^rs. This has 

been utilized by Kutter, both in developing his formula for c and in 

determining the values of the coefficient n which appears therein. 

The results obtained by the slope method are in general only roughly 

approximate, owing to the difficulty in obtaining accurate data and 

the uncertainty of the value for n to be used in Kutter's formula. 

The most common use of this method is in estimating the flood discharge of a stream when the only data available are the cross section, 

the slope as shown by marks along the bank, and a knowledge of the 

general conditions. It is seldom used by the United States Geological Survey. For full information regarding this method the 

reader is referred to the various text-books, on hydraulics.

Weir metliod. Relatively few stations are maintained at weirs or 

dams by the United States Geological Survey. Standard types of
INTEODUCTION. 17

sharp-crested and broad-crested weirs within the limits for which 

accurate coefficients have been experimentally obtained give very 

accurate records of discharge if properly maintained. At practically 

all broad-crested weirs, however, there is a diversion of water either 

through or around the dam, usually for the purpose of development 

of water power. The flow is often complicated and the records are 

subject to errors from such sources as leakage through the dam, 

backwater at high stages, uncertainty regarding coefficient, crest 

which is not level, obstructions from logs or ice, use of flashboards, 

old turbines with imperfect ratings, and many others depending on 

the type of development and the uses of the diverted water.

In general, records of discharge at dams are usually accurate enough 

for practical use if no others are available. It has been the general 

experience of the United States Geological Survey, however, that 

records at current-meter gaging stations under unobstructed channel 

conditions are more accurate than those collected at dams, and where 

the conditions are reasonably favorable are practically as good as 

those obtained at sharp-crested weirs.

The determination of discharge over the different types of weirs 

and dams is treated fully in "Weir experiments, coefficients, and 

formulas" (Water-Supply Paper 200°) and in the various textbooks on hydraulics. '' Turbine water-wheel tests and power tables'' 

(Water-Supply Paper 180) treats of the discharge through turbines 

when used as meters. The editions of both of these water-supply 

papers are practically exhausted. They can, however, be consulted at 

most of the larger libraries of the country or they can be obtained 

from the Superintendent of Documents, Washington, D. C., at a cost 

of 20 cents for No. 180 and 35 cents for No. 200. Remittances must 

be made by postal money order, express order, or New York draft.

Velocity method. Streams in general present throughout their 

courses to a greater or less extent all conditions of permanent, semipermanent, and varying conditions of flow. In accordance with the 

location of the measuring section with respect to these physical 

conditions, current-meter gaging stations may in general be divided 

into four classes (1) those with permanent conditions of flow;

(2) those with beds which change only during extreme high water;

(3) those with beds which change frequently but which do not cause 

a variation of more than about 5 per cent of the discharge curves 

from year to year; and (4) those with constantly shifting beds. 

In determining the daily flow different office methods are necessary 

for each class. The field data on which the determinations are 

based and the methods of collecting them are, however, in general 

the same.

a Water-Supply Paper 200 is a revision of No. 150, the edition of which is exhausted. 

24439 IRR 249 10 2
18 SURFACE WATER SUPPLY, 1907-8.

Great care is taken in the selection and equipment of gaging 

stations for determining discharge by velocitj7 measurements, in 

order that the data may have the required degree of accuracy. 

They are located, as far as possible, at such points that the relation 

between gage height and discharge will always remain constant 

for any given stage. The experience of engineers of the Geological 

Survey has been that permanency of conditions of flow is the prime 

requisite of any current-meter gaging station when maintained for 

several years unless funds are available to cover all changes in conditions of flow. A straight, smooth section without cross currents, 

backwater, boils, etc., at any stage is highly desirable, but on most 

streams is not attainable except at the cost of a cable equipment. 

Rough, permanent sections, if measurements are properly made 

by experienced engineers, taking measuring points at a distance 

apart of 2 to 5 per cent or less of the total width, will within reasonable 

limits yield better results for a given outlay of money than semipermanent or shifting sections with smooth, uniform current. So 

far as possible, stations are located where the banks are high and not 

subject to overflow at high stages and out of the influence of tributary 

streams, dams, or other artificial obstructions which might affect the 

relation between gage height and discharge.

A gaging station consists essentially of a gage for determining 

the daily fluctuations of stage of the river and some structure or 

apparatus from which discharge measurements are made, usually 

a bridge or cable.

The two factors required to determine the discharge of a stream 

past a section perpendicular to the mean direction of the current 

are the area of the cross section and the mean velocity of flow normal 

to that section.

In making a measurement with a current meter a number of 

points, called measuring points, are measured off above and in the 

plane of the measuring section at which observations of depth and 

velocity are taken. (See PI. I, B.) These points are spaced ebually 

for those parts of the section where the flow is uniform and smooth 

and are spaced unequally for other parts according to the discretion 

and judgment of the engineer. In general the points should not 

be spaced farther apart than 5 per cent of the distance between 

piers, nor farther apart than the approximate mean depth of the 

section at the time of measurement.

The measuring points divide the total cross section into elementary 

strips at each end of which observations of depth and velocity 

are made. The discharge of any elementary strip is the product 

of the average of the depths at the two ends times the width of the 

strip times the average of the mean velocities at the two ends of the 

strip. The sum of the discharges of the elementary strips is the total
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 248 PLATE I

A. CURRENT-METER RATING STATION AT LOS ANGELES, CAL.

B. BRIDGE STATION AND CROSS SECTION OF STREAM. 

Illustrating 0.2 and 08 depth method.
INTRODUCTION. 19

discharge of the stream. (For a discussion of methods of computing 

the discharge of a stream see Engineering News, June 25, 1908.)

Depths for the determination of the area are usually obtained by 

sounding with the current meter and cable. In rough sections or 

swift current an ordinary weight and cable are used, particular care 

being taken that all observations shall be in the plane of the cross 

section.

Two methods of determining the velocity of flow of a stream are 

in general use the float method and the current-meter method.

The float method with its various modifications of surface, subsurface, and tube or rod floats is now considered obsolete in the ordinary practice of the United States Geological Survey. The use of 

this method is limited to special conditions where it is impracticable 

to use the current meter, such as in places where large quantities of 

ice or debris which may damage the meter are flowing with the current, and for miscellaneous measurements or other work where a 

high degree of accuracy is not necessary. Tube floats are very satisfactory for use in canals with regular bottoms and even flow of current. Measurements by the float method are made as follows: 

The velocity of flow of the stream is obtained by observing the time 

which it takes floats set free at different points across the stream 

to pass between two range lines about 200 feet apart. The area 

used is the mean value obtained from several cross sections measured 

between the two range lines. The chief disadvantages of this method 

are difficulty in obtaining the correct value of mean area for the 

course used and uncertainty regarding the proper coefficient to 

apply to the observed velocity. For further information regarding 

this method the reader is referred to Water-Supply Paper 95 and to 

the various text-books covering the general subject of stream flow.

The Price current meter is now used almost to the exclusion of 

other types of meters by the United States Geological Survey in the 

determination of the velocity of flow of water in open channels, a 

use for which it is adapted under practically all conditions. Plate 

II shows in the center the new type of penta-recording current meter 

equipped for measurements at bridge and cable stations. On the 

sides the same type of meter is shown equipped for wading measurements to record by the acoustic method on the left and by the electric 

method on the right. Briefly, the meter consists of six cups attached 

to a vertical shaft which revolves on a conical hardened steel point 

when immersed in moving water. The number of revolutions is 

indicated electrically. The rating, or relation between the velocity 

of the moving water and the revolutions of the wheel, is determined 

for each meter by drawing it through still water for a given distance 

at different speeds and noting the number of revolutions for each 

run. (See PI. I, A.) From these data a rating table is prepared
20 SURFACE WATER SUPPLY, 1907-8.

which gives the velocity per second of moving water for any number 

of revolutions in a given time interval. The ratio of revolutions per 

second to velocity of flow in feet per second is very nearly a constant 

for all speeds and is approximately 0.45.

Three classes of methods of measuring velocity with current meters 

are in general use multiple-point, single-point, and integration.

The two principal multiple-point methods in general use are the 

vertical velocity curve and 0.2 and 0.8 depth.

In the vertical velocity curve method a series of velocity determinations are made in each vertical at regular intervals, usually about 

10 to 20 per cent of the depth apart. By plotting these velocities as 

abscissas and their depths as ordinates and drawing a smooth curve 

among the resulting points, the vertical velocity curve is developed. 

This curve shows graphically the magnitude and changes in velocity 

from the surface to the bottom of the stream. The mean velocity 

in the vertical is then obtained by dividing the area bounded by 

this velocity curve and its axis by the depth. This method of obtaining the mean velocity in the vertical is probably the best known, 

but on account of the length of time required to make a complete 

measurement its use is largely limited to the determination of coefficients for purposes of comparison and to measurements under ice.

In the second multiple-point method the meter is held successively 

at 0.2 and 0.8 depth, and the mean of the velocities at these two points 

is taken as the mean velocity for that vertical. (See PI. I, B.} On the 

assumption that the vertical velocity curve is a common parabola 

with horizontal axis, the mean of the velocities at 0.22 and 0.79 depth 

will give (closely) the mean velocity in the vertical. Actual observations under a wide range of conditions show that this multiple-point 

method gives the mean velocity very closely for open-water conditions and that in a completed measurement it seldom varies as much 

as 1 per cent from the value given by the vertical velocity curve 

method. Moreover, the indications are that it holds nearly as well 

for ice-covered rivers. It is very extensively used in the regular 

practice of the United States Geological Survey.

The single-point method consists in holding the meter either at 

the depth of the thread of mean velocity or at an arbitrary depth 

for which the coefficient for reducing to mean velocity has been 

determined or must be assumed.

Extensive experiments by means of vertical velocity curves show 

that the thread of mean velocity generally occurs between 0.5 and 

0.7 total depth. In general practice the thread of mean velocity is 

considered to be at 0.6 depth, and at this point the meter is held in 

most of the measurements made by the single-point method. A 

large number of vertical velocity curve measurements, taken on 

many streams and under varying conditions, show that the average
INTRODUCTION. 21

Coefficient for reducing the velocity obtained at 0.6 depth to mean 

velocity is practically unity. The variation of the coefficient from 

unity in individual cases is, however, greater than in the 0.2 and 

0.8 method and the general results are not as satisfactory.

In the other principal single-point method the meter is held near 

the surface, usually 1 foot below, or low enough to be out of the effect 

of the wind or other disturbing influences. This is known as the subsurface method. The coefficient for reducing the velocity taken at 

the subsurface to the mean has been found to be in general from 

about 0.85 to 0.95, depending on the stage, velocity, and channel 

conditions. The higher the stage the larger the coefficient. This 

method is especially adapted for flood measurements, or when the 

velocity is so great that the meter can not be kept in the correct 

position for the other methods.

The vertical integration method consists in moving the meter at a 

slow, uniform speed from the surface to the bottom and back again 

to the surface and noting the number of revolutions and the time 

taken in the operation. This method has the advantage that the 

velocity at each point of the vertical is measured twice. It is useful 

as a check on the point methods. In using the Price meter great 

care should be taken that the vertical movement of the meter is not 

rapid enough to vitiate the accuracy of the resulting velocity.

The determination of the flow of an ice-covered stream is difficult, 

owing to diversity and instability of conditions during the winter 

period and also to lack of definite information in regard to the laws of 

flow of water under ice. The method now employed is to make frequent discharge measurements during the frozen periods by the 0.2 

and 0.8 and the vertical velocity curve methods, and to keep an 

accurate record of the conditions, such as the gage height to the surface of the water as it rises in a hole cut in the ice, and the thickness 

and character of the ice. From these data an approximate estimate 

of the daily flow can be made by constructing a rating curve (really 

a series of curves) similar to that used for open channels, but considering, in addition to gage heights and discharge, the varying thickness of ice. For information in regard to flow under ice cover, see 

Water-Supply Paper 187.

OFFICE METHODS OF COMPUTING AND STUDYING DISCHARGE AND

RUN-OFF.

At the end of each year the field or base data for current-meter 

gaging stations, consisting of daily gage heights, discharge measurements, and full notes, are assembled. The measurements are plotted 

on cross-section paper and rating curves are drawn wherever feasible. 

The rating tables prepared from these curves are then applied to 

the tables of daily gage heights to obtain the daily discharges, and
22 SURFACE WATER SUPPLY, 1907-8.

from these applications the tables of monthly discharge and run-off 

are computed.

Rating curves are drawn and studied with special reference to 

the class of channel conditions which they represent. (See p. 17.) 

The discharge measurements for all classes of stations when plotted 

with gage heights in feet as ordinates and discharges in second-feet 

as abscissas define rating curves which are more or less generally 

parabolic in form. In many cases curves of area in square feet 

and mean velocity in feet per second are also constructed to the 

same scale of ordinates as the discharge curve. These are used 

mainly to extend the discharge curves beyond the limits of the 

plotted discharge measurements, and for checking purposes to avoid 

errors in the form of the discharge curve and to determine and eliminate erroneous measurements.

For every published rating table the following assumptions are 

made for the period of application of the table: (a) That the discharge is a function of and increases gradually with the stage; (6) 

that the discharge is the same whenever the stream is at a given 

stage, and hence such changes in conditions of flow as may have 

occurred during the period of application are either compensating or 

negligible, except that the rating as stated in the footnote of each 

table is not applicable for known conditions of ice, log jams, or other 

similar obstructions; (c) that the increased and decreased discharge 

due to change of slope on rising and falling stages is either negligible 

or compensating.

As already stated, the gaging stations may be divided into several 

classes, as indicated in the following paragraphs:

The stations of class 1 represent the most favorable conditions for 

an accurate rating and are also the most economical to maintain. 

The bed of the stream is usually composed of rock and is not subject 

to the deposit of sediment and loose material. This class includes 

also many stations located in a pool below which is a permanent 

rocky riffle that controls the flow like a weir. Provided the control 

is sufficiently high and close to the gage to prevent cut and fill at the 

gaging point from materially affecting the slope of the water surface, 

the gage height will for all practical purposes be a true index of the 

discharge. Discharge measurements made at such stations usually 

plot within 2 or 3 per cent of the mean-discharge curve, and the rating 

developed from that curve represents a very high degree of accuracy. 

For illustrative example of a station of this type see Water-Supply 

Paper 241.

Class 2 is confined mainly to stations on rough mountainous streams 

with steep slopes. The beds of such streams are as a rule comparatively permanent during low and medium stages, and when the flow 

is sufficiently well defined by an adequate number of discharge
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 249 PLATE I!

PRICE PENTA-RECORDING CURRENT METERS.
INTRODUCTION. 23

measurements before and after each flood the stations of this class 

give nearly as good results as those of class 1. As it is seldom possible to make measurements covering the time of change at flood 

stage, the assumption is often made that the curves before and after 

the flood converged to a common point at the highest gage height 

recorded during the flood. Hence the only uncertain period occurs 

during the few days of highest gage heights covering the period of 

actual change in conditions of flow. For illustrative examples of 

stations of this type see Water-Supply Paper 246.

Class 3 includes most of the current-meter gaging stations maintained by the United States Geological Survey. If sufficient measurements could be made at stations of this class results would be 

obtained nearly equaling those of class 1, but owing to the limited 

funds at the disposal of the Survey this is manifestly impossible, 

nor is it necessary for the uses to which discharge data are applied. 

The critical points are as a rule at relatively high or low stages. The 

percentage error, however, is greater at low stages. No absolute rule 

can be laid down for stations of this class. Each rating curve must 

be constructed mainly on the basis of the measurements of the current year, the engineer being guided largely by the past history of the 

station and the following general law: If all measurements ever made 

at a station of this class are plotted on cross-section paper, they will 

define a mean curve which may be called a standard curve. It has 

been found in practice that if after a change caused by high stage, a 

relatively constant condition of flow occurs at medium and low 

stages, all measurements made after the change will plot on a smooth 

curve which is practically parallel to the standard curve with respect 

to their ordinates, or gage heights. This law of the parallelism of 

ratings is the fundamental basis of all ratings and estimates at stations with semi-permanent and shifting channels. It is not absolutely 

correct but, with few exceptions, answers all the practical requirements of estimates made at low and medium stages after a change at 

a high stage. This law appears to hold equally true whether the 

change occurs at the measuring section or at some controlling point 

below. The change is of course fundamentally due to change 

in the channel caused by cut, or fill, or both, at and near the measuring section. For all except small streams the changes in section 

usually occur at the bottom. The following simple but typical 

examples illustrate this law:

(a) If 0.5 foot of planking were to be nailed on the bottom of a 

well-rated wooden flume of rectangular section there would result, 

other conditions of flow being equal, new curves of discharge, area, 

and velocity, each plotting 0.5 foot above the original curves when 

referred to the original gage. In other words, this condition would 

be analogous to a uniform fill or cut in a river channel which either
24 SURFACE WATER SUPPLY, 1907-8.

reduces or increases all three values of discharge, area, and velocity 

for any gage height. In practice, however, such ideal conditions 

rarely exist.

(&) In the case of a cut or fill at the measuring section there is a 

marked tendency toward decrease or increase, respectively, of the 

velocity. In other words, the velocity has a compensating effect and 

if the compensation is exact at all stages the discharge at a given 

stage will be the same under both the new and the old conditions.

(c) In the case of uniform change along the crest of a weir or 

rocky controlling point, the area curve will remain the same as 

before the change, and it can be shown that here again the change 

in velocity curve is such that it will produce a new discharge curve 

essentially parallel to the original discharge curve with respect to 

their ordinates.

Of course in actual practice such simple changes of section do not 

occur. The changes are complicated and lack uniformity, a cut at 

one place being largely offset by a fill at another and vice versa. 

If these changes are very radical and involve large percentages of 

the total area as, for example, on small streams there may result 

a wide departure from the law of parallelism of ratings. In complicated changes of section the corresponding changes in velocity 

which tend to produce a new parallel discharge curve may interfere 

with each other materially, causing eddies, boils, backwater, and 

radical changes in slope. In such extreme conditions, however, the 

measuring section would more properly fall under class 4 and would 

require very frequent measurements of discharge. Special stress is 

laid on the fact that in the lack of other data to the contrary the 

utilization of this law will yield the most probable results.

Slight changes at low or medium stages of an oscillating character 

are usually averaged by a mean curve drawn among them parallel 

to the standard curve, and if the individual measurements do not 

vary more than 5 per cent from the rating curve the results are 

considered good for stations of this class. For illustrative example 

of a station of this type see Water-Supply Paper 242.

Class 4 comprises stations that have soft, muddy, or sandy beds. 

Good results can be obtained from such sections only by frequent 

discharge measurements, the frequency varying from a measurement every two or three weeks to a measurement every day, according to the rate of diurnal change in conditions of flow.

The following method of determining the daily discharge of streams 

of this class is now used by the engineers of the United States Geological Survey almost exclusively, owing to the rapidity with which the 

necessary computations can be made, the clearness with which all 

changes in conditions of flow, so far as known, can be followed, and 

the accuracy of the results obtained.
INTRODUCTION. 25

In the graphic method of determining the daily discharge of streams 

with changeable beds, which was devised by R. II. Bolster, the discharge measurements for the entire year are first plotted with discharges as abscissas and gage heights as ordinates. The points so 

plotted are considered chronologically and, even though scattered, 

will usually locate one or more fairly well defined curves, called standard curves. (See PI. III.) In general the number and position of 

these standard curves are determined by the radical changes in the 

stream bed due to floods.

When stream beds change very rapidly it is necessary to change 

the position of the rating curve each day, making a new curve daily. 

This daily curve is of the same form as the standard curve and is parallel to it with respect to ordinates. For a day when a measurement is 

made the rating curve passes through such plotted measurement, the 

discharge for the day being read off from the scale of discharge in 

second-feet, at the point of intersection of the curve and the mean 

gage height for the day. In order to locate the rating curve for other 

days lines are drawn connecting consecutive measurements. These 

lines are called correction curves and should have the same curvature 

as that portion of the standard curve which lies vertically above or 

below them. These lines are divided into as many equal parts as 

there are days intervening between the measurements, on the assumption that the change in conditions of flow between any two consecutive measurements is uniform from day to day. The daily rating 

curve will then pass through these points of division, and the discharge is read directly from these curves at their point of intersection 

with the observed daily gage heights.

In order to facilitate the use of the method and obviate the use of 

daily rating curves, and make it as rapid in application as the common 

method for permanent stations, the standard curve or curves, together with a vertical line of reference, should be transferred from the 

original station sheet to tracing cloth, which can be readily shifted 

vertically to any desired position by always keeping the two vertical 

reference lines coincident with each other. Thus the daily rating 

curve, which is merely the standard curve transferred, can be placed 

in any desired position.

Another way of simplifying the work of applying this method is to 

use dividers. Always keep one point of the dividers coincident with 

the standard curve, and always keep both points on the same vertical 

line of discharge. By spreading the points, the point which is not 

coincident with the standard curve can be made to trace any daily 

rating curve desired.

In applying and modifying this method, judgment must be used for 

long-time intervals of no measurements or for radical changes in the 

stream bed caused by sudden floods. For another illustrative example of a station of this type see Water-Supply Paper 247.
26 SURFACE WATER SUPPLY, 1907-8.

The computations have, as a rule, been carried to three significant 

figures. Computation machines, Crelle's tables, and the 20-inch slide 

rule have been generally used. All computations are carefully 

checked.

After the computations have been completed they are entered in 

tables and carefully studied and intercompared to eliminate or 

account for all gross errors so far as possible. Missing periods are 

filled in, so far as is feasible, by means of comparison with adjacent 

streams. The attempt is made to complete years or periods of discharge, thus eliminating fragmentary and disjointed records. Full 

notes accompanying such estimates follow the monthly-discharge 

tables.

For most of the northern stations estimates have been made of 

the monthly discharge during frozen periods. These are based on 

measurements under ice conditions wherever available, daily records 

of temperature and precipitation obtained from the United States 

Weather Bureau climate and crop reports, observers' notes of conditions, and a careful and thorough intercomparison of results with 

adjacent streams. Although every care possible is used in making 

these estimates they are often very rough, the data for some of 

them being so poor that the estimates are liable to as much as 25 

to 50 per cent error. It is believed, however, that estimates of this 

character are better than none at all, and serve the purpose of indicating in a relative way the proportionate amount of flow during 

the frozen period. These estimates are, as a rule, included in the 

annual discharge. The large error of the individual months has a 

relatively small effect on the annual total, and it is for many purposes desirable to have the yearly discharge computed even though 

some error is involved in doing so.

ACCURACY AND RELIABILITY OF FIELD DATA AND COMPARATIVE

RESULTS.

Practically all discharge measurements made under fair conditions are well within 5 per cent of the true discharge at the time of 

observation. Inasmuch as the errors of meter measurements are 

largely compensating, the mean rating curve, when well defined, is 

much more accurate than the individual measurements. Numerous 

tests and experiments have been made to test the accuracy of currentmeter work. These show that it compares very favorably with the 

results from standard weirs, and, owing to simplicity of methods, 

usually gives results that are much more reliable than those from 

stations at dams, where uncertainty regarding the coefficient and 

complicated conditions of flow prevail.

The work is, of course, dependent on the reliability of the observers. 

With relatively few exceptions, the observers perform their work
20000 22 24 26 28 

DISCHARGE IN SECOND-FEET

30000 32 34

GRAPHIC METHOD OF DETERMINING DAILY DISCHARGE.

36 
INTRODUCTION. 27

honestly. Care is taken, however, to watch them closely and to 

inquire into any discrepancies. It is, of course, obvious that one 

gage reading a day does not always give the mean height for that 

day. As an almost invariable rule, however, errors from this source 

are compensating and virtually negligible in a period of one month, 

although a single day's reading may, when taken by itself, be considerably in error.

In order to give engineers and others information regarding the 

probable accuracy of the computed results, footnotes are added to the 

rating tables and an accuracy column is inserted in the monthlydischarge table. In the rating tables " well defined" indicates in general that the rating is probably accurate within 5 per cent; "fairly 

well defined," within 10 per cent; " poorly defined " or " approximate," 

within 15 to 25 per cent. These notes are very general and are based 

on the plotting of the individual measurements with reference to the 

mean rating curve.

The accuracy column in the monthly-discharge table does not apply 

to the maximum or minimum nor to any individual day, but to the 

monthly mean. It is based on the accuracy of the rating, the probable reliability of the observer, and knowledge of local conditions. In 

this column, A indicates that the mean monthly flow is probably 

accurate within 5 per cent; B, within 10 per cent; C, within 15 per 

cent; D, within 25 per cent. Special conditions are covered by footnotes.

USE OF THE DATA.

In general the policy is followed of making available for the public 

the base data which are collected in the field each year by the Survey 

engineers. This is done to comply with the law, but also for the 

express purpose of giving to any engineer the opportunity of examining the computed results and of changing and adjusting them as may 

seem best to him. Although it is believed that the rating tables and 

computed monthly discharges are as good as the base data up to and 

including the current year will warrant, it should always be borne in 

mind that the additional data collected at each station from year to 

year nearly always throw new light on data already collected and 

published, and hence allow more or less improvement in the computed 

results of earlier years. It is therefore expected that the engineer 

who makes serious use of the data given in these papers will verify 

all ratings and make such adjustments in earlier years as may seem 

necessary. The work of compiling, studying, revising, and republishing data for different drainage basins for five or ten year periods or 

more is carried on by the United States Geological Survey so far as 

the funds for such work are available.

The values in the table of monthly discharge are so arranged as to 

give only a general idea of the conditions of flow at the station, and it
28 SURFACE WATER SUPPLY, 190*7-8.

is not expected that they will be used for other than preliminary 

estimates. This is particularly true of the maximum and minimum 

figures, which in the very nature of the method of collecting these 

data are liable to large errors. The maximum value should be 

increased considerably for many stations in considering designs for 

spillways, and the minimum value should be considered for a group 

of, say, seven days and not for one day.

The rating table, provided the engineer accepts it, is published 

primarily to allow him to apply it directly to the daily gage heights 

and rearrange the daily discharges in order of magnitude or by some 

other method.

COOPEEATION AND ACKNOWLEDGMENTS.

Special acknowledgments are due for assistance rendered or records 

furnished by the following parties: Vernon L. Sullivan, territorial 

engineer of New Mexico; Thos. W. Jaycox, state engineer of Colorado; 

Caleb Tanner, state engineer of Utah; the United States Indian Service; the United States Reclamation Service; the United States Forest 

Service; the Central Colorado Power Company; R. I. Meeker; Field, 

Fellows & Hinderlider; Chris J. Walbran; Wheeler & Whinnerah; 

Prof. Geo. J. Lyon; the Denver and Rio Grande Railroad Company; 

the Moffatt road; the Denver Union Water Company; and various 

engineers and irrigation and power companies, who have furnished the 

U. S. Geological Survey with valuable data.

All the stations maintained in the San Juan and Gila River drainage basins in New Mexico were in cooperation with the territorial 

engineer, and more than half of the expense was paid from territorial 

funds. Special mention should be made of the interest Mr. Sullivan, 

the territorial engineer, has shown in this work, and of his persistence 

in carrying it on, though greatly handicapped by lack of funds.

Mr. Tanner, state engineer of Utah, paid the salaries of the observers 

at about five stations in the Duchesne River drainage, in cooperation 

with the United States Indian Service and the United States Geological Survey.

Thanks are due Mr. J&ycox, state engineer of Colorado, for suggestions in carrying on the work, and for paying the salaries of some of the 

observers in Colorado during the first part of 1907.

The Uinta Irrigation Survey, of the United States Indian Service, 

has borne practically all the expense of discharge measurements at the 

stations in the Uinta Reservation and vicinity in Utah.

The United States Reclamation Service has furnished all the field 

data for the stations in the Gunnison drainage basin in Colorado, and 

the 1907 data for the Gila River drainage basin in New Mexico. It 

has also paid the expense of maintaining the station on the Grand 

at Palisades, Colo., for 1908.
INTRODUCTION. 29

All stations in Arizona have been maintained and all computed 

data furnished by the United States Reclamation Service.

The Salton Sea gage heights were furnished by the Southern 

Pacific Company, and measurements of flow into Salton Sea by H. R. 

Edwards, engineer for the New Liverpool Salt Company.

The Central Colorado Power Company has cooperated in the maintenance of practically all the stations in the Grand River drainage 

basin in Colorado, and has expended several thousand dollars for this 

work. Until July 1, 1908, the company paid the salaries of gage 

observers, and since that time it has borne practically all the expense 

of taking discharge measurements. Special thanks are due Mr. L. E. 

Ashbaugh and G. H. Matthes of this company for valuable suggestions 

and data which they have furnished.

Mr. R. I. Meeker was in charge of the work of this district from 

January 1 to May 1, 1907. He has since taken a very active interest 

in it, for which special acknowledgments are due him.

Field, Fellows & Hinderlider have furnished data on the flow of the 

upper Williams Fork in Colorado. Mr. Fellows, of this firm, through 

his intimate knowledge of the water resources of this section, has been 

able to give valuable information, and his assistance has been very 

much appreciated. The Denver and Rio Grande Railroad and the 

Moffatt road furnished transportation for the Survey hydrographers 

during the year 1907.

Many of the photographs contained in this paper were obtained 

from the United States Reclamation Service.

DIVISION OF WORK.

The field data in the Grand River drainage basin were collected 

under the direction of W. B. Freeman, district engineer, assisted by 

R. I. Meeker, Jas. B. Stewart, C. L. Chatfield, the engineers of the 

Central Colorado Power Company, and the United States Reclamation Service. The field data for the Gunnison River drainage were 

collected by the engineers of the United States Reclamation Service.

The field data in the Duchesne River drainage basin were collected 

under the direction of W. B. Freeman, district engineer, assisted by 

I. I. Price and R. H. Fletcher, under the more immediate supervision 

of H. C. Means, superintendent of irrigation, United States Indian 

Service.

The field data of the San Juan and Gila River drainage basins, in 

New Mexico, except those for Gila River near Cliff and San Francisco 

River at Alma, were taken under the general direction of W. B. 

Freeman, district engineer, but under the more immediate supervision 

of Vernon L. Sullivan, territorial engineer, assisted by Jas. B. Stewart, 

Robt, L. Cooper, and C. D. Miller.
30 SURFACE WATER SUPPLY, 1907-8.

All other field data in the lower Colorado River drainage were collected and the computations therefor were made by the United 

States Reclamation Service, except as indicated above.

The ratings, special estimates, and studies of the completed data 

were made by W. B. Freeman, R. H. Bolster, and F. F. Henshaw. 

The computations and preparation of the completed data for publication were made under the direction of R. H. Bolster, assistant engineer, by F. F. Henshaw, G. C. Stevens, H. D. Padgett, R. C. Rice, 

J. G. Mathers, and M. I. Walters. The entire report was edited by 

Mrs. B. D. Wood.

COLORADO RIVER DRAINAGE BASIN. 

GENERAL FEATURES.

Colorado River is formed in the southeastern part of Utah by the 

junction of Grand and Green rivers. The Green is larger than the 

Grand and is the upward continuation of the Colorado. Including 

the Green, the entire length of the Colorado is about 2,000 miles. 

The region drained is about 800 miles long, varies in width from 300 

to 500 miles, and contains about 300,000 square miles. It comprises 

the southwestern part of Wyoming, the western part of Colorado, the 

eastern half of Utah, practically all of Arizona, and small portions of 

California, Nevada, New Mexico, and old Mexico. Most of this area 

is arid, the mean annual rainfall being about 8^ inches. The streams 

receive their supply from the melting snows on the high mountains of 

Wyoming, Utah, and Colorado.

The basin comprises two distinct portions. The lower third is but 

little above the level of the sea, though here and there ranges of mountains rise to elevations of 2,000 to 6,000 feet. This part of the valley 

is bounded on the north by a line of cliffs which present a bold and in 

many places vertical step of hundreds or thousands of feet to the tableland above. The upper two-thirds of the basin stands from 4,000 

to 8,000 feet above sea level, and is bordered on the east, west, and 

north by ranges of snow-clad mountains, which attain altitudes varying from 8,000 to 14,000 feet above sea level. Through this plateau 

the Colorado and its tributaries have cut narrow gorges or canyons 

in which they flow at almost inaccessible depths. At points where 

lateral streams enter the canyons are broken by narrow transverse 

valleys, diversified by bordering willows, clumps of box elder, and 

small groves of cottonwood. The whole upper basin of the Colorado 

is traversed by a labyrinth of these canyons, most of which are dry 

during the greater portion of the year, and carry water only during 

the melting of the snow and the brief period of the autumnal and 

spring rains.
COLOEADO EIVER DRAINAGE BASIN. 31

Green River and its tributaries 0 drain an area rudely triangular in 

outline, bounded on the north and east by the Wind River Mountains 

and the ranges forming the Continental Divide, on the south and east 

by the White River Plateau and the Roan or Book Cliffs, and on the 

north and west by the Gros Ventre and Wyoming mountains and the 

great Wasatch Range. The greatest length of the basin, north and 

south, is about 370 miles. In an east-west direction it measures at its 

widest point about 240 miles. The total drainage area is approximately 41,000 square miles, and altitudes range from 14,000 feet in 

the high mountains to about 3,800 feet at the mouth of the Grand.

The area includes a large part of western Wyoming, northwestern 

Colorado, and eastern Utah. The Uinta and Uncompahgre Indian 

reservations are located in this basin in northeastern Utah.

The river heads on the Avestern slope of the Wind River Mountains 

in western Wyoming, its ultimate source being a number of small lakes 

fed by the glaciers and immense snow deposits always to be found on 

Fremont and neighboring peaks. For perhaps 25 miles the river flows 

northwestward through the mountains. It then turns abruptly and 

runs in a general southerly direction across western Wyoming into 

Utah. A few miles below the Wyoming-Utah boundary another sharp 

turn carries the river eastward near the east end of the range. It 

then flows southward in Colorado for about 25 miles, turns back into 

Utah, and continues to flow in a southwesterly and southerly direction until it unites with the Grand to form the Colorado. Its length, 

measured roughly along the course, is approximately 425 miles.

The topography of the headwater region is rugged in the extreme. 

The Wind River Range on the east, and the Gros Ventre and Wyoming ranges on the southwest and west gradually close in as they extend outhward, forming a basin approximately 7,450 square miles in 

extent above the discontinued gaging station at Green River,Wyo.

The upper part of this basin is very narrow, but southward the valley opens out; near Fontanelle, Wyo., it is several miles wide; with 

benches and rolling table-lands extending westward to the foothills 

of the Wyoming Range and eastward to the bluffs which hug the east 

bank of the river. At Green River the valley is again narrow only 

a few hundred yards in width and for some distance southward the 

river runs between bluffs standing so close together that no flood plain 

is seen. Throughout much of its course in Utah the Green flows 

through a succession of long, deep, narrow canyons with walls ranging 

in height from a few hundred to as many thousand feet, separated 

by short valleys, containing small tracts of arable lands.

a. The geology of this basin is described in the Eleventh Ann. Kept. U. S. Geol. and Geog. Survey Terr., 

for 1877, pp. 509-64(5. Information in regard to the hydrography is contained in the first to fourth annual 

reports of the Reclamation Service and in United States Geological Survey reports.
32 SUEFACE WATER SUPPLY, 1907-8.

In its upper course the Green receives as tributaries numerous 

streams heading in the Wind River, Gros Ventre, and Wyoming ranges 

of mountains, some of them extending so far back into the abrupt, 

ragged canyons that they dovetail with streams flowing in the opposite direction.

The most important of these tributaries are New Fork River, Big 

Sandy Creek, Labarge Creek, Fontanelle Creek, Black Fork, and Henry 

Fork. South of the Uinta Mountains the first large stream flowing 

into the Green is the Yampa, which comes in from the east at the point 

where the Green turns westward to reenter Utah after its southward 

journey in Colorado.

Farther south Ashley Creek and Duchesne and White rivers discharge their waters into the Green, Ashley Creek and the Duchesne 

from the west and the White from the east.

Below this point the only tributaries of importance are Price, 

Minnie Maude, and San Rafael rivers, which enter from the west, the 

latter at a point about 32 miles above the junction of the Green and 

the Grande.

Except for the timber in the high mountains at the headwaters of 

Green River in Wyoming, the upper portion of the stream is not very 

extensively forested. The timbered land includes probably 1,500 

square miles, with an average stand of about 4,000 feet board measure per acre in that section. Numerous tracts of irrigated and cultivated land extend from the Wyoming line up the river to elevations 

of 7,000 feet.0

In the Green River basin in Utah above the mouth of the Duchesne, 

there are about 600 square miles of timbered land, with an average 

stand of nearly 3,000 feet board measure per acre, while there are 

nearly 2,000 square miles of timbered area and woodland in the 

drainage basins of the White and Yampa rivers in Colorado.

In the 41,000 square miles which comprise the total drainage area 

of the Green River, there are considerably over 5,000 square miles of 

timbered land in addition to a considerable woodland area. The principal species of mountain timber are the Engelmann spruce and lodgepole pine.

Over the plains portion of the basin, which includes considerably 

over half of it, the average annual precipitation seems to be less than 

10 inches annually; over much of the remainder the rainfall averages 

between 10 and 15 inches, and in only a very small area in the high 

mountains does the precipitation exceed 20 inches annually.

Throughout this whole basin winters are severe, and most of the 

streams have a heavy ice cover for several months. There is usually 

an abundance of snow in the high mountains, but the winters on the 

plains are frequently quite open. (See PI. IV, A and B.)

a See also description of New Fork drainage basin in Water-Supply Paper 175, pp. 21 and 22.
U. S. GEOLOGICAL SURVEY

WATER-SUPPLY PAPER 249 PLATE IV

A. SNOW AND ICE CONDITIONS ON COLORADO MOUNTAIN STREAMS
THE CONTINENTAL DIVIDE NEAR TOLLAND, COLO.; ELEVATION, 11,666 FEET ABOVE SEA LEVEL.
COLORADO EIVEE DRAINAGE BASIN. 33

The oldest and most extensive irrigation development in this basin 

is on the upper Green River in Wyoming. Recently large irrigation 

systems have been constructed in the Duchesne River basin. Considerable irrigation is practiced around Vernal, Utah, and also in the 

vicinity of Greenriver, Utah, along the line of the Denver and Rio 

Grande Railroad. Along White and Yampa rivers in Colorado, 

meadow irrigation is extensively practiced and projects are now on 

foot for the irrigation of 200; 000 or 300,000 acres of land in that section.

Excellent reservoir sites are found on the headwaters of the Green 

River and its upper tributaries, and also along Yampa and White 

rivers, on Ashley Creek, and other tributaries in the northwestern 

corner of Utah, and at the headwaters of Duchesne River. A very 

considerable portion of the flow could be equalized by storage.

Not a water-power plant of any importance whatever exists in the 

whole drainage area of Green River, though splendid opportunities 

are presented at the headwaters of many of the tributary streams 

above all irrigation diversions. Theoretically, at the present time 

it would be possible, by utilizing known storage facilities, to develop 

about 1,500,000 horsepower in the basin of the Green, but it is 

unlikely that the development of this power will be a commercial 

possibility for a number of }T ears. From Wells, Wyo., to the Wyoming state line, a distance of 225 miles, the stream has an average fall 

of 11 feet per mile; and from the Wyoming state line to the mouth 

of Minnie Maud Creek, a distance of 200 miles, the average fall is 7 

feet per mile. The waters of this stream and its tributaries are practically unused except for irrigation.

From the junction of Grand and Green rivers the Colorado flows 

southwestward, passes across the northwestern corner of Arizona, 

then turns to the south and for the remainder of its course forms a 

part of the southeastern boundary of Nevada and California and the 

western boundary of Arizona. It empties into the Gulf of California 

about 60 miles below Yuma, Ariz. The canyons through which it 

flows are world-famed and need not here be described.

The Colorado has been called the Nile of America, and like the Nile 

it is subject to an annual summer rise which comes at the time 

when the water is most needed for irrigation. It is of interest to 

compare the Colorado with Nile and Susquehanna rivers. The Nile 

is similar in type, while the Susquehanna shows the difference in flow 

between arid and humid regions. In the comparison a normal year, 

based on a ten-year record for Colorado and Susquehanna rivers 

and such data as could be found in regard to the Nile, have been 

used. The Colorado has been taken as the standard of comparison.

The Nile has 5.7 times the drainage area and the Susquehanna 

about one-eighth the area of the Colorado. 

24439 IRR 249 10 3
34 SUEFACE WATER SUPPLY, 1907-8.

The rainfall in the Nile basin is 3.8 times greater; that in the Susquehanna basin is 4.5 times greater. The run-off per square mile 

from the Nile basin is 1.9 times greater; that from the Susquehanna 

basin is 37 times greater. The ratio of run-off to rainfall in the Nile 

basin is 2 times smaller; that of the Susquehanna basin is 8.2 times 

greater.

The discharge of the Nile is 10.8 times greater; that of the Susquehanna is 4.5 times greater.

The maximum flow of the Colorado is from 70,000 to 110,000 secondfeet and occurs in May, June, or July; for the Nile it is about 353,000 

second-feet and occurs about the first of September; for the Susquehanna it is from 200,000 to 400,000 second-feet and occurs during 

March, April, and May.

The minimum flow of the Colorado is from 2,500 to 3,000 secondfeet and occurs during January and February; that of the Nile is 

about 14,500 second-feet and occurs about the end of May; for the 

Susquehanna it is from 2,500 to 5,000 second-feet and occurs in September and October.

The mean flow of the Colorado is about 10,700 second-feet; for the 

Nile it is about 115,800 second-feet; for the Susquehanna it is about 

43,000 second-feet,

The water of the Colorado carries an immense amount of sediment, 

reaching as high as 2,000 parts of sediment to 100,000 parts of water. 

Prof. R. H. Forbes, in Bulletin 44 of the University of Arizona 

Agricultural Experiment Station, says:

On the basis of the profile, constructed from available data for the volume of flow 

of the Colorado and of the year's silt determinations made in the laboratory, it is 

estimated conservatively that the river during 1900 brought down about 61,000,000 

tons of sedimentary material, which, condensed to the form of solid rock, is enough 

to cover 26.4 square miles 1 foot deep, or to make about 164 square miles of recently 

settled, submerged mud 1 foot deep, reckoning the whole amount of mad for the 

year to average 6.2 times the bulk of the solid sediment.

A comparatively small amount of land is irrigated by the waters of 

the Colorado, because the stream and its tributaries are situated so 

far below the level of the irrigable lands as to render their diversion 

extremely difficult or impracticable. Two pumping plants are in 

operation to lift water for irrigation at Yuma, and several at other 

points on the river above Yuma. The Imperial canal diverts water 

from the river at a point about 10 miles, by river, below Yuma.

The principal tributaries of the Colorado below the Grand and 

Green are San Juan, Little Colorado, Williams Fork, and Gila rivers, 

which enter from the east, and Virgin River, which enters from the 

west. With the exception of Virgin River and Williams Fork, these 

streams and their various tributaries are described in other parts of 

this report.
COLORADO RIVER DRAINAGE BASIN. 35

The following gaging stations have been maintained on the main 

Colorado River and in the Green River basin:

Green Eiver at Green Eiver, Wyo., 1895-1906.

Green Eiver at Jensen, Utah, 1903-1906.

Green Eiver at Ouray, Utah, 1904-5.

Green Eiver at Greenriver, Utah, 1894-1896 and 1905-1908.

Colorado Eiver at Hardyville, Ariz., 1905-1907.

Colorado Eiver at Mohave City, Ariz., 1902-3.

Colorado Eiver at Yuma, Ariz., 1895-1908.

Canal stations:

Imperial canal (main) near Calexico, Cal., 1904-5.

Boundary canal near Calexico, Cal., 1905.

Wisteria canal near Calexico, Cal., 1905.

Imperial canal 10 miles below Yuma, Ariz., Mexican boundary line, 

1903-1905.

Holt canal at Calexico, Cal., 1904-5.

Hemlock canal at Calexico, Cal., 1904-5.

Alamo channel near Calexico, Cal.

Alamitos canal near Calexico, Cal., 1904-5. 

Newfork Eiver at Cora, Wyo., 1905. 

Pine Creek at Pinedale, Wyo., 1904-1906. 

Pole Creek at Fayette, Wyo., 1904-1906. 

Fall Creek at Fayette, Wyo., 1904-5. 

Boulder Creek at Boulder (Newfork), Wyo., 1904-1906. 

Eastfork Eiver at Newfork, Wyo., 1905-6. 

Black Fork of Green Eiver at Granger, Wyo., 1896-1900. 

Yampa Eiver at Steamboat Springs, Colo., 1904-1906. 

Yampa Eiver at Craig, Colo., 1901-2, 1904-1906. 

Yampa Eiver at Maybell, Colo., 1904-5. 

Elk River at Trull, Colo., 1904-1906. 

Elk Head Creek at Craig, Colo., 1906. 

Fortification Creek at Craig, Colo., 1905-6. 

Williams River at Hamilton, Colo., 1904-1906. 

Milk Creek at Axial, Colo., 1904-5. 

Little Snake River at Maybell, Colo., 1904. 

Ashley Creek at Vernal, Utah, 1900-1904. 

Ashley Creek (Dry Fork) at Vernal, Utah, 1904. 

North Fork of White River at Buford, Colo., 1903-1906. 

White River at Meeker, Colo., 1901-1906. 

White River at White River City, Colo., 1895. 

White River at Rangely, Colo., 1904-5. 

White River at Dragon, Utah, 1906. 

White River at Ouray, Utah, 1904. 

South Fork of White near Buford, Colo., 1903-1906. 

Marvine Creek near Buford, Colo., 1903-1906. 

Duchesne River, North Fork, above Forks, Utah, 1904. 

Duchesne River near Myton, Utah, 1899-1908. 

Duchesne River, West Fork, above Forks, Utah, 1904. 

Rock Creek (East Creek) 10 miles above mouth, Utah, 1904. 

Strawberry River in Strawberry Valley, Utah, 1903-1906 and 1908. 

Strawberry River at Theodore, Utah, 1908. 

Indian Creek in Strawberry Valley, Utah, 1905-6.
36 SURFACE WATER SUPPLY, 190*7-8.

Currant Creek 3 miles above mouth of Deep Creek, Utah, 1904.

Red Creek above narrows, Utah, 1904.

Lake Fork (West Fork) 10 miles above Forks, Utah, 1904.

Lake Fork below Forks, Utah, 1904, 1907-8.

Lake Fork near My ton, Utah, 1900-1904, 1907-8.

Lake Fork (East Fork) 8 miles above Forks, Utah, 1904.

Uinta River at Whiterocks, Utah, 1899-1904, 1907-8.

Uinta River at Fort Duchesne, Utah, 1899-1904, 1906-1908.

Uinta River at Ouray School, Utah, 1899-1904.

Whiterocks River at Whiterocks, Utah, 1899-1904, 1907-8.

Price River at Helper, Utah, 1904-1908.

COLORADO PROPER AND GREEN RIVER. 

GREEN RIVER AT GREENRIVER, UTAH.

This station (originally called Blake) was established October 21, 

1894, discontinued in November, 1896, and reestablished in February, 

1905. It is located at the Rio Grande Western Railway bridge at 

Greenriver railroad station and near the Elgin post-office, in latitude 

39° north, longitude 110° 9' west, in the San Rafael quadrangle of 

the United States Geological Survey.

The station was established to determine the unappropriated runoff of the river, and the record is very valuable to owners of ranches 

along the river course. Several irrigation projects are completed 

and being promoted in this drainage basin.

The last diversion above the station is about 10 miles upstream; 

there are no diversions below the station. Price River enters from 

the west about 16 miles above the station.

A new bridge was erected at this point between the periods of 

maintenance of the original station and the present one. The present datum, as near as can be learned, is 1.68 feet below the original 

datum. Owing to change in conditions of flow due to the relocation 

of the bridge piers it is, however, impossible to utilize the early measurements in studies of discharge curves under the present conditions. 

The datum of the present chain gage has remained the same since its 

establishment.

At low and medium stages measurements are made from a ferryboat at a point about 450 feet above the bridge. At high stages 

measurements are made from the bridge.

The bed of the river at the bridge is mainly rock, overlain in places 

with silt at low stages. At high stages the high velocity of the current scours out this silt, and the changes in conditions of flow necessitate new ratings at frequent intervals.
COLORADO RIVER DRAINAGE BASIN. 37

Discharge measurements of Green River at Greenriver, Utah, in 1907 and 1908.

Date.

1907. 

June 21.........

July 17.........

1908. 

March 24.......

July 9..........

Hydrographer.

G. T. Burridge. ....................................

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

Width.

Feet.

453

441

Area of 

section.

Sq.ft. 

5,110

4,850

3,890

3,200

2,570

Gage 

height.

Feet. 

11.50

10.80

8.70

7.20

6.20

8.00

Discharge.

Sec. -ft.

36,600

22,500

11,400

6,120

14,800

Daily gage height, in feet, of Green River at Greenriver, Utah, for 1907 and 1908. 

[George C. Mead and L. II. Green, observers.]

Day.

1907. 

1............... 

2 ........... ..

6...............

7 .... ..... ..

8...............

g

10............... 

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

12...............

13...............

15...............

16...............

17...............

18...............

19............... 

20...............

21...............

22...............

23...............

24...............

25........... .

26...............

27...............

28...............

29............... 

30............... 

31...............

1908. 

1. ..............

9

3........ ...... 

4..............

5............... 

6...............

8...............

9...............

10...............

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

12...............

10

14...............

15...............

Jan.

4.6 

4. 55

4.5

4. 45

4.4

4.25

4.1

4.25

4.4

4.3

4.3

4.4

4.35

4.3 

4.25

4.35

4.1

4.0

3.85

4.05

4.2

4.35 

4.4 

4.5

4.3 

4.3

4.3 

4.3

4.3 

4.3

A "\

4.3

4.3

4.3

4.3

4.3

4.3

A Q

4.3

Feb.

4.5

4.4

4.65

4.7

5.0

5.6 

6.1

6.35

6.1

5.6

5.5

5.4

5.4 

5.4

5.4

5.95

6.0

5.8

5.85

6.25

4.5 

4.6

4.6 

4.6

4.5 

4.5

4.6

4.6

4.65

4.7

4.6

4.6

4.5

4.6

4.6

Mar,

6.4 

6.25

6.25

6.05

5.55

5.6

5.2 

5.2

5.3

5.2

5.2

5.2

5.1

5.0 

5.0

5.0

6.0

5.2

6.2

7.4

7.5

7.5

7.25 

7.05 

6.85

4.6 

4.6

4.7 

5.0

5.0 

5.1

5.1

5.1

5.1

5.2

5.2

5.2

5.2

5.3

5.3

Apr.

6.7 

6.55

5.85

6.2

fi KK

6.65 

6.85

6.9

7 15

8.1

8.5

8.85

9.0 

9.3

9.25

8.95

8.6

8.2

8.0

7.95

7.8

7.8 

7.8

7.8

5.8

5.6 

5.5

5.5 

5.5

e E;

5.5

5.5

5.5

5.5

5.5

5.5

5.65

5.85

May.

7.8 

7 9

8.05

7.8

7.65

".45

".9

8.75

9.3

9.3

9.0 

9.0

9.55

10.55

11.1

11.6

12. 15

12. 05

12.2

11.9 

11.4 

10.4

7.1

7.0

6.9 

6.9

6.95

7.1

7.2

7.45

7.6

7.95

8.05

8.1

June.

10. 65 

10.45

10.4

11.35

11 9

12.15

12.7 

12 9

12.85

12.7

12.2

11.9

11.65

11.5 

11.5

11.55

11.5

11.5

11.4

11.4

11.3

11.4

11.6 

11.6

8.0 

7 9

7.9 

7.65

7. 55 

7 9

7 9

8.0

7 9

8.0

7 9

8.05

8.35

8.9

9.0

July.

11.6 

11.6

11.7

11.8

12.0

12.2

199

12.1

11.85

n

KK

10.7

10.45

10.1 

9.75

9.55

9.35

9.15

9.0

9 0

9.0

9.0

9 0

8.9 

8.9

8.8

8.3

8.2

8.0 

8.0

8.0 

8.0

8.1

8.0

8.0

8.0

7.95

7.95

7.85

7.65

Aug.

8.85 

8.65

8.5

8.4

8.2

8.1

8.0

8.0

7.9

7.65

7.5

7.5

7.45

7.4

7.25

7.1

7.0 

6.95

6.85

6.8

6.7

6.65

6.7

6.75

7.15

7.0

6.9 

6.8 

6.7

6.45 

6.65

6.85 

7.05

7.2

6.25

6.2

7.0

6.7

6.2

6.35

7.0

6.85

Sept.

6.6 

6.6

6.6

6.85

6.5

6.3 

6.2

6.1

6.0

5.95

5.9

5.8

5.65 

5.6

5.6

5.5

5.5

5.5

5.4

5.4

5.4

5.4 

5.4

6.25 

6.2

6.2 

6.1

6.05

5.85

5.6

5.5

5.4

5.4

5.3

5.3

5.3

Oct.

5.5

5.6

5.7

5.6

5.6

5.9

6.0

6.15

5 95

5.6

5.6 

5.5

5.45

5.4

5.4

5.4

5.4

5.4

5.3 

5.3 

5.3

6. 55 

6.25

6.1 

6.0

5.9

5.8

5.7

5.6

5.6

5.6

5.6

5.6

5.5

Nov.

5.3 

5.3

5.3

K 0

5.3

5.3

5.3

K 0

5.2

5.2

5.2

5.2

5.2

5.1

5.1

5.05

5.0 

5.0

5.0

4.9

4 9

4.9

4.8

4.8

4.7

4.7

4.7

4.7

5.7

5.6 

5.6

5.6 

5.5

5.5

5.4

5.3

5.3

5.3

5.3

5.3

5.2

Dec.

4.7 

4.6

4.65

4.6

4.6

4.5

4.5

4.4

4.4

4.4

4.3

4.3

4.3

4.3 

4.3

4.2

4.2

4.2

4.2

4.2

4.2

4.3

4.3

4.3 

4.3 

4.3

4.1 

4.1

4.1 

4.1

4.0 

4.1

4.25

4.6

4.7

4.8

4.8

4.8

4.8
38 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Green River at Greenriver, Utah, for 1907 and 1908. Con.

Day. Jan.

1908. 

16............... 4.3

17............... 4.3

19 44

20............... 4.5

21 ............... 4. 55

22............... 4.65

23............... 4.6

24............... 4.5

25............... 4.5

26............... 4.5

27.. ............. 4.5

28............... 1 4.6

29.... ........... ; 4.6

30............... 4.6

31............... 4.6

Feb.

4.6

4.5

4.5

4 5

4.5

4.5

4.5

4.6

4.6

4.6

4.7

4.7

4.6

4.6

Mar.

5.5

5.95

5.8

5.7

5.85

6.1

6.35

6.2

6.1

6.1

6.0

5.85

5.75

5.7

5.7

Apr.

6.1

6.2

6.35

6.75

7.05

7.35

7.55

7.75

7.8

7.8

7.65

7.45

7.25

May.

8.0

7.7

7.6

7.5

7.5

7.6

7.75

7.85

7.9

8.05

7.8

7.75

7.95

8.05

8.0

8.0

June.

9.4

9.5

9 6

9 6

9.7

9 7

9.6

9.5

9.65

9.5

9.35

9.1

9 0

8.75

8.6

July.

7.6

7.6

7.3

7.2

7.1

7.0

7.0

6.9

6.65

6.55

6.4

6.2

6.45

6.2

Aug.

6.85

6 9

6 9

6.8

6.8

6.9

6 9

6.8

6.75

6.7 ,t f.

6.65

6.6

6.5

6.35

Sept.

5.2

5.2

c 9

5.2

5.1

5.0

6.3

K Q

5.8

6.2

6.0

5.7

5.85

5.9

6.35

Oct.

5.5

5.5

C Q

6.15

6.0

5.9

5.8

5.8

5.8

5.8

5.7

5.7

5.7

5.7

Nov.

5.15

5 A

C A

4 9

4.8

4.8

4 9

4 9

5.1

5.1

5.2

5.2

5.1

4.15

Dec.

4.7

4.4

4.3

4.3

4

Q

4.3

4.3

4.3

4.3

A 0

4.3

4

0

4.3

Rating tables for Green River at Greenriver, Utah. 

JANUARY 1, 1906, TO MAY 24, 1907.

Gage 

height.

Fret.

3.60

3.70

3.80

3.90

4.00

Discharge.

Scc.-ft.

1,510

1,640

1,770

1,910

2,050

4.10 2,200

4. 20 1 2, 360

4.30

4.40

4.50

4.60

4.70

4.80

2,530

2,720

2,920

3,140

3,370

3,610

Gage 

height.

Feet.

Discharge.

Sec.-ft.

4. 90 1 3, 870

5.00

5.10

5.20

5.30

5.40

5.50

5.60

5.70

5.80

5.90

6.00

6.10

4,150

4,440

4,740

5,000

5,390

5,740

6,100

6,480

6,870

7,270

7,680

8,110

Gage 

height.

Discharge.

Feet. Scc.-ff.

6. 20 8, 550

6.30 9,010

6.40 9,480

6. 50 9, 960

6.60

6.70

6.80

6.90

7.00

7.20

7.40

7.60

10, 450

10.950

11,470

12,000

12, 550

13,700

14,910

Gage 

height.

Feet.

8.00

8.20

8.40

8.60

8.80

9.00

9.20

9.40

9.60

9.80

10.00

16,180 ' 11.00

7.80 17,510 12.00

Discharge.

Sec.-ft.

18,900

20,340

21,840

23,420

25,080

26, 780

28,500

30, 240

32,000

33,800

35,600

45,040

55,000

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on five 

discharge measurements made during 1906 and the form of the 1905 curve. It is well defined between gage 

heights 4.5 and 10.0 feet.

MAY 25, 1907, TO DECEMBER 31, 1908.

Gage Disheight. ' charge.

Feet. 

4.00

4.10

4.20

4.30

4.40

4.50

4.60

4.70

4.80

4.90

5.00

5.10

Sec.-ft. 

1,270

1,390

1,520

1,650

1,780

1,920

2,060

2,210

2,370

2,540

2,730

2,930

5.20 3,140

Gage 

height.

Feet. 

5.30

5.40

5.50

5.60

5.70

5.80

5.90

6.00

6.10

6.20

6.30

6.40

6.50

Discharge.

Sec.-ft. 

3,360

3,590

3,840

4,120

4,420

4,730

5,050

5,400

5,760

6,140

6,530

6,930

7,350

Gage 

height.

Feet. 

6.60

6.70

6.80

6.90

7.00

, 7.20

! 7.40

7.60

7.80

8.00

8.20

8.40

8.60

Discharge.

Sec.-ft. 

7,790

8,250

8,730

9,220

9,730

10, 780

11,880

13,030

14, 220

15,450

16,740

18,070

19, 430 '

Gage 

height.

Feet. 

8.80

9.00

9.20

9.40

9.60

9.80

10.00

11.00

12.00

13.00

Discharge.

Sec.s-ft. 

20, 820

22, 250

23,700

25, 190

26, 710

28, 260

29, 850

38, 300

47,900

58,600

NOTE. The above table is not applicable for Ice or obstructed-channel conditions. It is based on 

discharge measurements made during 1907 and 1908 and the form of previous curves. It Is well defined 

above gage height 6.0 feet.
COLORADO RIVER DRAINAGE BASIN.

Monthly discharge of Green River at Grcenrirer, Utah, for 1907 and 1908. 

[Drainage area, 38,200 square miles.]

39

Discharge in second-feet.

Month. 

Maximum.

1907.

March ........................ 15, 500

Mav.......................... 51,000

July. .. .... ..... .......... 50,000

September. ................... 8, 980

October. . ..................... 5, 950

November... ................ 3, 3t,0

1908.

April ......................... 14, 200

May.......................... Hi, 100

June.... ..................... 27,500

July............. ............. 17,400

August ....................... 10, 800

December .................... 2, 370

The year. .............. 27,500

Minimum.

1,840 

2, 720 

4, 150 

7,070 

15, 200 

33, 100 

20, 800 

8,020 

3, 590 

3,360 

2,210 

1,520

1,520

1,050 

1,920 

2, 060 

3,840 

9,220 

12, 700 

6,140 

6, 140 

2, 730 

3,840 

1,460 

1,270

1,270

Mean.

2, 580 

5, 660 

7,800 

1(), 200 

29, 200 

44, 600 

35, 800 

12, 500 

5,430 

4,110 

2,910 

1,770

14,000

1,790 

2,030 

4,040 

7,380 

13, 000 

20, 400 

12, 400 

8,370 

4, 560 

4,810 

3,210 

1,760

6,980

Per 

square 

mile.

0.068 

.148 

.204 

.424 

.764 

1.17 

.937 

.327 

.142 

.108 

.076 

.046

Ru

Depth in 

inches on 

drainage 

area.

0.08 

.15 

.24 

.47 

.88 

1.30 

1.08 

.38 

.16 

.12 

.08 

.05

n-ofl.

Total in 

acre-feet.

159, 000 

314, 000 

480, 000 

964, 000 

1,800,000 

2, 650, 000 

2, 200, 000 

769, 000 

323, 000 

253, 000 

173, 000 

109, 000

. 368 4. 99 10, 200, 000

.047 

.053 

.106 

.193 

.340 

.534 

.325 

.219 

.119 

.126 

.084 

.046

.05 

.06 

.12 

.22 

.39 

.60 

.37 

.25 

.13 

.15 

.09 

.05

. 183 2. 48

110, 000 

117,000 

248, 000 

439, 000 

799, 000 

1, 210, 000 

762, 000 

515, 000 

271,000 

296, 000 

191,000 

108, 000

5, 070, 000

Accuracy.

C. 

C. 

C. 

C. 

C. 

A. 

A. 

B. 

B. 

C. 

C.

c.

c. 

c. 

c.

A. 

A. 

A. 

A. 

A. 

B. 

B. 

C. 

C.

COLORADO RIVER AT HARDYVILLE, ARIZ.

This station, which is located one-quarter mile above the deserted 

town of Hardyville and 7 miles above Fort Mohave, Ariz., was established May 11, 1905, and was discontinued October 1, 1907. It was 

maintained in cooperation with the State of California.

The bed of the stream is composed of cemented gravel and changes 

gradually as the river falls from flood stage to low water, a bar forming 

in that portion of the section nearest the right bank and altering 

conditions of flow materially. The right bank is composed of 

cemented gravel, is high and not subject to overflow; the left bank 

is made up of alluvial material, easily eroded, is low and wooded, 

and is liable to overflow at flood stages. Discharge measurements 

are made from a car and cable. The datum of the staff gage, which 

has remained the same since the establishment of the station, is at 

elevation 507.18 feet above sea level. The gage is located 275 feet 

below the cable from which discharge measurements are made.
40 SURFACE WATER SUPPLY, 1907-8.

Discharge measurements of Colorado River at Hardyville, Ariz., in 1907. 

[By Carvin, Fackles, and Somers.]

Date.

March 23 .......

Gage 

height.

Feet. 

6.95

6.88

6.69

7-69

8.11

7.80

9 78

Discharge.

Sec.-ft.

9,270

7,910

8,260

14, 200

14, 900

15,000

14,200

29, 200

Date.

April 20........

April 28........

May 11 .........

May 18.........

June 22.........

Gage 

height.

Feet. 

9.15

12.28

10.92

13,45

14.40

13.78

15.38

15.40

Discharge.

Sec.-ft. 

22,300

35, 20Q

26, 900

65,600

65,300

110,000

104, 000

81,000

Date.

July 6..........

July 20. ........

July 27. ........

October6.......

Gage 

height.

Feet.

12.9

11.2

Q 79

8.80

8.60

8.40

7.20

Discharge.

Sec.-ft.

50, 800

44,100

27,200

22, 300

Daily gage height, infect, of Colorado River at Hardyville, Ariz., for 1907 

[Marion Derrick, observer.]

Day.

1.. .........................

2...........................

3...........................

4...........................

6...........................

7...........................

8...........................

9...........................

10...........................

12...........................

13...........................

14...........................

16...........................

17...........................

18...........................

19...........................

20...........................

21...........................

22...........................

23 ...........................

24...........................

25...........................

26...........................

27...........................

28...........................

29...........................

30...........................

31...........................

Jan.

6.65

6.85

6.75

6.9

6.95

7.0

6.9

6.8

6.7

6.7

6.6

6.6

6.6

6.7

6.8

6.9

6.9

6.85

6.75

6.7

6.75

6.7

6.65

6.65

6.7

6.65

6.5

Feb.

6.8

6.9

6.8

6.8

6.9

7.3

7.25

7.2

7.3

7.3

7.3

7.4

7.35

7.3

7.3

7.4

7.5

7.6

7.45

7.4

7.45

7 9

7.6

7.5

7 9

Mar.

7.7

7.7

7.8

8.0

7 Q

8.25

8

0

8.1

8.0

8.3

8.0

7.85

7.7

7.65

7.55

7.5

7.6

7.5

7.8

7.7

7.65

8.5

9 0

9.6

9.5

9.6

9.8

Apr.

9.8

9.7

9.5

9.5

9.4

9.15

9.15

9.05

9.05

9.2

9.3

9.3

9.4

9.65

9 9

10.5

11.25

11.8

12.05

12.35

12.5

12.35

12.3

12.2

11.35

10.3

May.

10.2

10.2

10.2

10.45

10.55

10.55

10.5

10.4

10.4

10.2

10.0

9.85

9.8

9.85

Q 7*L

10.0

10.15

11.1

11.3

11.3

11.5

11.8

12.4

14.5

14 9

14.4

June.

14.4

14.0

13.2

13.0

12.9

13.0

14.3

14.7

15.35

15.5

15.45

15.3

15.1

15.3

15.0

15.4

15.2

14.8

14.85

14.7

July.

14.8

14.6

15.0

15.1

15.0

15.1

15.0

14.8

14.7

14.7

14.2

13.7

13.35

13.2

12 9

12.65

11 9

11.6

11.2

10.9

11.05

11.2

11.15

11.1

11.1

Aug.

10.8

10.2

10.7

10.5

10.4

10.15

9.7

9.7

9.45

9.25

9.15

9.0

8.9

8.9

8.8

8.75

8.7

8.6

8.4

8.3

8.2

8.6

8.9

8.0

7 9

8.5

8.75

Sept.

8.5

8 9

9.2

8.85

8 9

8.8

8.8

8.6

8.1

8

()C

1 Q^

7.85

7.65

7.55

7 ^

7.6

7 Q^

7 I K

7.2

7.2

7 3

7 3*;

7.4

7 3^

7.1 7 n<?
COLORADO RIVER DRAINAGE BASIN. 41

Daily discharge, in second-feet, of Colorado River at Hardyville, Ariz.,for 1907.

Day.

1...........................

2..... .. .. .... .....

3...........................

4..... .... ..... ... ......

5...........................

6...........................

7..... .. . .. ....

8.......... ... .... .... .

9...........................

10...........................

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

12.....

13...........................

14.....

15..... ... .. ........

16.......... .. ........

17............ ..............

18.....

19.......... ..............

20. ..........................

21..... ...

22.......... .. ...

23.................... ......

24..... ...

25.......... .. .......

26..... ....

27...... ...

28...........................

29...........................

30. ..........................

31............ .. ... ...

Jan.

7,800 

8,800 

8,300 

9,100 

9,270

9,600 

9,000 

8,550 

8,000 

8,000

7,500 

7,410 

7,600 

7,600 

8,000

8,500 

9,000 

8,950 

8,900 

8,700

8,200 

7,900 

8,200 

7,900 

7,700

7,700 

7,850 

7,500 

7,400 

6,700

7,300

Feb.

7,900 

8,260 

7,850 

7,850 

8,300

10, 500 

10, 200 

9,900 

10, 500 

10,500

10, 500 

10, 800 

11, 000 

10, 800 

10, 800

10, 500 

10, 600 

11,100 

11,700 

12, 200

11,400 

11,300 

11,600 

14,400 

12, 900

12, 400 

12,000 

15, 100

Mar.

14, 100 

14, 200 

14, 300 

14,400 

15, 400

14,400 

16, 400 

15,800 

14,900 

14, 600

17, 100 

16, 200 

16, 100 

15,600 

15,200

15,400 

14, 400 

13,800 

14, 200 

13,200

13,000 

12, 600 

14,200 

13, 800 

13, 500

19,000 

22, 700 

27, 400 

26, 800 

27,800 

29,000

Apr. May.

28, 600 

27, 500 

25, 700 

25,400 

24,400

22, 300 

22, 500 

21,900 

22,000 

23,300

24, 100 

24, 300 

25,200 

25, 800 

26,800

30, 700 

36, 000 

40, 000 

41, 800 

43,000

45, 600 

44, 900 

45,000 

44,600 

41,500

37, 800 

35, 100 

33, 800 

31,900 

30, 200

29, 400 

29,400 

29, 500 

31,600 

32,400

32, 400 

31,800 

30,900 

30, 700 

29, 000

27, 400 

26, 900 

27, 400 

28, 600 

28, 600

31,800 

33, 000 

38, 700 

42, 800 

44,400

44,000 

45, 600 

48, 700 

55,000 

70, 200

83, 500 

102, 000 

87, 300 

82, 000 

70, 400 

67, 500

June.

65,600 

61,000 

52, 300 

52, 100 

52, 000

52, 000 

54, 000 

65, 700 

77, 300 

89, 500

110,000 

112,000 

110,000 

106, 000 

98, 500

100,000 

104, 000 

96,700 

106, 000 

105, 000

100,000 

104, 000 

95,000 

102,000

87, 500

87,500 

83, 800 

82, 200 

81,000 

82, 600

July.

86, 200 

83, 600 

93, 200 

96, 000 

95, 500

104,000 

102, 000 

102,000 

104,000 

102, 000

102, 000 

105,000 

100, 000 

93,400

87, 500

80,000 

71,500 

64,200 

64, 000 

57, ?00

56, 300 

49,500 

47, 700 

45, 300 

44, 000

47, 800 

50, 800 

47, 600 

50, 800 

50, 300 

50,400

Aug.

50, 000 

47, 300 

45,900 

42, 500 

48, 600

47, 700 

47, 600 

46, 400 

43, 000 

44, 100

40,000 

36,600 

34,200 

31,800 

30,000

29, 000 

27, 200 

25,600 

26,000 

24, 800

23, 000 

22, 900 

21,700 

23, 400 

24, 600

25,200 

19, 200 

18, 400 

17, 500 

21,600 

20, 600

Sept.

21,400 

21,200 

24, 800 

25, 800 

25, 200

25,000 

25,000 

25,000 

23,600 

22,000

20, 000 

19,600 

19, 000 

18,200 

10,900

10, 200 

15,300 

16, 000 

16, 400 

14,800

13,600 

13, 900 

13, 800 

14, 400 

14,600

14, 900 

14, 900 

14, 700 

13,000 

12,700

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Colorado River at Hardyville, Ariz.,for 190"t

Month.

1907.

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

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

The period

Discha 

Maximum.

9,600 

15,100 

29,000 

45, 600 

102, 000 

112,000 

104, 000 

50, 000 

25, 800

"ge in seconc 

Minimum.

6, 700 

7,850 

12,600 

21,900 

26,900 

52,000 

44, 000 

17, 500 

12, 700

-feet. 

Mean.

8,100 

10,800 

16,800 

31,700 

44,900 

85, 900 

75, 300 

32, 500 

18,400

Run-off 

(total in 

acre-feet).

502,000

600, 000

1,030,000

1,890,000

2,760,000

5,110,000

4,630,000

2,000,000

1,090,000

19, 600, 000

Accuracy .

B.

B.

B.

B.

B.

B.

B.

B.

B.

COLORADO RIVER AT YUM A, ARIZ.

This station, which is located in the town of Yuma, Ariz., 1^ miles 

below the mouth of Gila River, and 10 miles by river above the Mexican border, furnishes information concerning the amount of water 

available for irrigation along lower Colorado River and for diversion 

at the Laguna dam (PL V, A}. Records of river height have been 

kept by the Southern Pacific Railroad Company since April 1, 1878.
42 SURFACE WATER SUPPLY, 1907-8.

The records given herewith are furnished by the United States 

Reclamation Service, through F. L. Sellew, project engineer, Yuma.

As the bed of the stream is composed of silt and sand and is very 

unstable, frequent measurements are necessary to properly define 

the daily discharge. The right bank is low, wooded, and- liable to 

overflow; the left bank is not subject to overflow. Previous to May 

31, 1903, discharge measurements were made from the railroad bridge. 

On that date a cable station was established at a point 600 feet below 

the bridge, and all measurements are now made from a car, except 

during highest floods, when a boat is used. At flood stages a large 

part of the water flows through an old channel and does not pass 

under the cable. At such times this overflow water is measured at 

the point where it passes under the railway trestle, one-third mile 

north of the main channel.

During the flood of May and June, 1905, there were two breaks in 

the railroad grade at Araz, Cal., 4 miles from Yuma, and the water 

passing through these is included in each discharge measurement of 

the Colorado.

The staff gage is in two sections, located at the railroad bridge, 

600 feet above the cable station, the upper section reading above 24 

feet being the original gage established in 1876. The elevation of 

the zero of the gage is 137.4 feet above sea level.

Discharge measurements of Colorado Hirer at Yuma, Ariz., in 1907 and 1908. 

[By Roberlson, North, Dyer, and Priest.]

Date.

1907.

March 20. ......

Gage 

height.

Feet. 

22.75

20.85

20.0

9O 7

1Q Q

19 7

19 6

20.4

9Q 9

21.0

20.7

21 9

20.75

21.0

24.65

22.2

21. 75

21.2

20.4

Discharge.

Sec.-ft.

24,700

18, 800

22 100

i c nnn

13 900

12, 700

9Q ^nn

97 inn

i s won

17, 900

on qnfi

17,400

17, 400

46, 200

24, 900

19,700

14,800

Date.

1907.

March 30.......

Aprils.........

Aprils. ........

April 27 ........

May 1 ..........

May 22.........

May 25.........

May 27.........

May 29.........

June 10. ........

Gage 

height.

Feet. 

22.0

21.5

23.0

22.8

23.2

22. 7

22.4

22 2

22.5

2.3. 0

24.8

25.8

25. 6

24.7

23.2

23.1

23.3

23.2

22.8

22.65

22.8

24.4

24.7

25.55

27.0

28. 4

29.1

28. 95

27.75

26.9

Discharge.

Sec.-ft. 

2(i, 200

20,200

31,200

32, 100

29, 200

27, 400

24, 700

25,900

29, 500

46, 900

49 900

44, 600

32, 400

32, 800

29 100

28, 600

31 900

41, 300

51, 000

61,800

72,400

77, 000

87, 100

80, 100

72, 200

Date.

1907.

Ji e 22. ........

Jl 624. ........

Ji e2<3.........

July 1 ..........

July 22.........

July 29. ........

July 31.........

August 22. ..

September 4.

Gage 

height.

Feet. 

27.1

28. 05

29 15

29.05

28.9

28.fi

28.3

27.4

27.5

27.8

27.8-

27.5

26.75

23.1

22.8

23.3

22.85

22.45

22.15

21.45

20.95

20.45

20.25

20.25

19.95

20.5

20.3

19.6

22.25

21.25

Discharge.

Sec.-ft. 

81, 800

94 400

101, 000

m nnn

113,000

108, 000

114,000

92, 000

55, 400

61,900

55,300

41,300

28,600

26,800

24,500

25,000

23, 100

43,300

35,000
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 249 PLATE V

A. INTAKE GATES ON CALIFORNIA SIDE OF LAGUNA DAM, YUMA PROJECT, ARIZONA.

D. MEASURING SECTION ON WHITEROCKS RIVER NEAR WHITEROCKS, UTAH.
COLORADO RIVER DRAINAGE BASIN. 43

Discharge measurements of Colorado River at Yuma, Ariz., in 1907 and 1908 Continued. 

[By Robertson, North, Dyer, and Priest.]

Date.

1907.

September 16...

September 28.. .

October 3--....-

October 10......

October 12......

October 14......

October 19......

November 2 ....

December 2.....

December 9.....

December 16

December 18

1908.

February 11. ...

Gage 

height.

Feet. 

21.25

20.75

20.5

19.65

19.2 

19.0

19.0

19.0

19.1

18.9

18.8

18.7

18.75

19.1

19.7

19.75

19.6

19.5

19. 55

19.95

19.5

90 25

19.55 

19.4

19.3

19 1

19.1

19 1

18.8

18.8

18.7

18.7

18.5 

18.3

18.3

18.3 

18.3

18.5

18.4

18.4

18.35

18.2

18.4

18.1

101

18.4

18.7

19.7

Discharge.

Sec. -ft. 

34, 500

31,900

27,600

18,400 

15, 500

14,100

13, 400

13, 400

12,000

11,300

10,300

10,300

12, 200

15, 900

15, 500

14,000

13,800

14,600

15,900

14,200

14,300 

12,900

11,900

9,600

9,900

9,100

9,000

8,600 

7.800

8,000

7,500 

7,900

7,700

6,900

6,700

K at\t\

6,100

45,000

14,200

Date.

1908.

February 26. ... 

March 3 ........

March 11.......

March 12.......

March 25.......

March 31.......

April 17 ........

April22..... .

April 29........ 

May 2 ..........

May 13.........

May 22.........

May 31.........

June 8..... .....

June 17....... .. 

June 19. ........

June 22. ........

June 20. ........

June 29. ........

July 1 ..........

July 6 ..........

JulyS..........

July 10......... 

July 13.........

July 15.........

July 17.........

July 20.........

July 22.........

July 24.........

July 27.........

July 29... ......

July 31.........

August 10. .....

Gage 

height.

Feet.

19 7

19.9

19 7

20.65 

20. 25

T> 2

21.1

21.9

20.05

 ~>n 9

20.45

20.4

20.2

20.6

21.1

°1 95

22. 05 

22.7

22.0

21.4

21.65

21.55

99 2

22.3

22. 8

22.6

22. 4 

23.3

23.3

23.3 

24.35

24.95

25. 25

25.35

24.6

24.5

94 9

23.8

23.05

22.3 

21.9

21.5

21.2

21.0

20.7

20.7

20.55

20.1

20.2

20.85

20.7

21.1

22. 05

Discharge.

Sec. -ft.

16,900

27,000

18,700

24, 700

13,400

11,300

13,200

14,300

17,200

13, 400

13,600

28, 100 

29, 800

27, 100

23,100

25, 100

27, 900

27, 500

25,500

31,300

30, 900

33, 600 

35, 200

38, 700

39, 400 

48,300

55, 100

61,700

55, 400

53,800

53,100

49, 300

41,100

35, 400 

31,200

29,800

28, 800

25,600 ,

24, COO

24, 100

21,600

19,300

18,900

22, 700

21,400

25,200

31,900

Date.

1908.

August 21. ..... 

August 24......

August 26. .....

August 28......

August 31 ......

September 4. ...

September 17...

September 21...

September 25. . .

September 28. . .

September 30. . .

Octobers. .....

October 9. ..... 

October 12. ....

October 14. ....

October 19. ....

October 23. ....

October 2G. ....

October 28. ....

October 30. ....

November 6 ....

November 9 .... 

November 11 ...

November 16.. .

November 20. ..

November 27 ...

December 4. ...

December 7 ....

December 9. . ..

December 12. ..

December 16. ..

Gage 

height.

Feet. 

21.8

20.6

20.45 

22.4

22.1

21.6

20.65

20.4

20.1

19.6

19.3

19.1

18.8

18.7

18.65

18.6

18.8

18.8

18.9

19.4

19.5

19.8 

19.5

19.8

19.3

19.4

21.15

20.05

19.75

19.3

19.2

19.3

19.3 

19.4

19.5

19.5 

19.6

19.6

19.55

19.7

19.7

19.2

19.2

19.4

19.6

19.6 

19.55

19.5

19.4

19.1

19.4

27.1

27.3

21.5

23.1

20.6

19.8 .

19.2

Discharge.

Sec.-ft. 

28, 200

24,000

20,700

20, 500

19,300 

33,800

28, 200

25,000

18, 900

16.600

14,100

11,800

10,400

8,900

8.200

7,700

7,000

7,200

6,600

10,000 

8,600

9,900

8,200

13,700

12,100

9,900

9,200

8,500

8,200 

8,200

8,000 

7,600

7,500

7,300

7,200

7,400

6,000

6,200

6,600

7,400

7,700 

7,400

7,300

6,900

6,100

7,300

72, 500

68, 900

25, 400

37, 200

19, 400

14,800

11,200
44 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Colorado River at Yuma, Ariz., for 1907 and 1908.

Day.

1907. 

1.... ........... 

2...............

3............... 

4...............

5...............

6............... 

7...............

8...............

9...............

10...............

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

12............. .

13............... 

14............. . 

15...............

16............. .

17...............

18............. .

19............... 

20... . .

21........ . 

22........... . .

23...............

24. ..............

25.......... .

26.....

27........ . .

28............. 

 29........... ..

30...............

1908.

2...

3.........

4. .............

5.

6...........

7.. .......... .

8. .

9... .

10....... ......

11....... . .

12. .

13........... ...

14. . . ... 

15...............

16...............

17...............

18...............

19

20. .............. 

21...............

22...............

23...............

24...............

25............... 

26...............

27...............

28...............

29

30............... 

31

Jan.

22.95 

21.2

20.9 

20.7

20.6

20.3 

20.2

20.0

20.7

20.7 

23.7

23.3 

22.0 

21.1

20.5

19.95

21.4 

22.85

21.5 

21.0

20.6

20.0

19.8 

19.7 

19.6

19.6 

19 6

18.0

18.0

18.1

18.2

18.4

18.45

18.6

18.3

18.3

18.3 

18.2

18.2

18.1 

18.1

18.1 

18.1

18.1

18.1

18 2

18.2 

18.35

18.4

18.45

18.5

18.5 

18.4

Feb.

19.55 

21.55

22.4 

21.5

21.1

20.65 

20.35

20. 6

20.95

21.0

20.9 

20.75

20.6 

20.5 

20.55

20.5

20. 4

20.35 

20.2

20.55 

21.25

20.95

20.7

21.4

21.85 

21.3

18.5

18.5

18.6

18.7

18.75

19.7

00 Q

20.35

19.75

IQ 7

19 7

19.95

20.0

19.9

19.8 

19 7

19 7

19.8 

19 9

19.75

19.7

19.95 

20.65

20.8

20.7

20.4

Mar.

20.85 

20.8

21.25 

21.0

21. 1

21.25 

22.85

27.0

24.55

23.2

22.3

21.7

21.85 

21.8 

21.35

21.15

20.9

20.55 

20.4

20.4 

20.4

20.4

22.3

22.3

21.5 

21.7 

22.95

23.0 

23.05

20.3

20.25

20.25

20.85

21.0

20.7

22.2

21.4

21.45

21.9

21.0

20.6 

20.55

20.3

20.05 

19.9

19.85

19.8 

19.8

20.1

20.2

20.35

20.45 

20.75

20.9

20.95

20.9

20.85

Apr.

22.85 

22.9

23.2 

23. 05

22.8

22.75 

22. fi5

22.35

22.2

22.2

22.4 

22.5

22.45 

22.5 

22.5

22.8

23.05

23.5

24.25

24.8

25. 15 

25.5

25.75

25.85

25.85

25. 75

25.6 

25.3

24.8

24.3

20.75

20.8

20. 7

20.5

20.4

20.4

20.1

20.2

20.05

20. 1

20.25

20.45

20. 6 

20.65

20.7

20.6 

20.65

20. 7

20.8 

20.8

21.1

21.7

21.95

22.0 

21.95

21.95

22.0

22.05

22.45

May.

23. 75 

23. 45

23. 3 

23. 2

23. 1

23. 15 

23. 25

213

23. 3

23.2

23.15 

23.0

22. 85 

22. f>5 

22.65

22.73

22.7

22.8

23.0 

23.6

24.1 

24.45

24.6

24.7

24.75

2.3. 05

25.5 

2»>. 15 

27.5

27.95

22.7

22.7

22.55

22.3

22.0

21.75

21.4

21. 35

21.4

21.55

21. 7

21.65

21.6 

21.45

21.55

21.95 

22.2

22.25

22.3 

22.3

22.3

22.2

22.0

22.0 

22. 15

22.5

22.9

23.0

22.9 

22.75

June.

28.45 

28.9

29.1 

29.2

29.15

28.9 

28.3

27.7

27. 25

26.85

2ti. 95 

27.15

27. 45

27. 75 

28. 05

28.25

28.55

28.85

29.1 

29.15

29.15 

29.1

29.0

28.9

28.9

28.85

28. 75 

28 7 

28.6

28.4

22.85

22.75

22.6

22.6

22.6

22.3

22.3

22.5

22.7

22.95

23.2

23.3

23.5

23.5 

23.3

23.2

23.3 

23.8

24.3

24.6 

24.75

25.0

25.2

25.2

25.25 

25.3

25.15

24.8

24.55

24.55

July.

28.3 

28.05

27.65 

27.4

27.4

27.35 

27. 35

27.5

27.7

27.8

28.05 

28.0

28.05 

27.95 

27.8

27.65

27.5

27.45

27.1 

26.75

26.1 

25.65

25.3

24.85

24.3

23.6

23. 25 

23.0 

23.1

22.8

22.8

24.5

24.45

24. 25

24.1

23.9

23.75

23.35

23.05

22.7

22.3

22. 1

22.0

21.85

21.7 

21.4

21.3

21.2 

21.05

21.0

21.0 

20. 9

20.7

20.55

20.7

20.7 

20.7

20.5

20.2

20.1

20.2 

20.25

Aug.

23.1

23.3 

23.05

22.85

22.5 

22.45

22. 45

22.3

22.15

21.85 

21.45

21.25 

20.95 

20.65

20.5

20.45

20.25 

20 1

20.3 

20.25

20.1

19.95

20.2

20.5

20.4 

20.5 

20.3

19.9 

19.6

20.35

20.8

20.95

20.6

20.75

21.1

21.2

21.55

22.25

22.0

21.8

21.7

21.0

21.15 

20.65

20.5

20.6 

20.35

20.4

20.2 

20.45

20.8

21.3

22.45

22.35 

22.05

21.8

21.45

20.85

20.9 

20.6

Sept.

20.65 

22.25

21.6 

21.2

21.55

21.5

21.25

20.65

20.75

21.0

20.5 

20.0

19.65 

19.65 

19.35

19.2

19.15

18.95 

18.9

19.0 

19.25

19.0

19.0

19.0

19.0

19.05 

19.1 

19.25

19.05

20.4

20.4

20.3

20.05

19.8

19. 65

19.5

20.05

19.5

19.25

19.2

19.4

19.1 

19.05

19.9

19.25 

18.9

18.8

18.75 

18.7

18.75

18.65

18.6

18.6 

18.6

18.65

18.8

18.8

18.85

Oct.

18.9 

18 9

18.8 

18.65

18.7

18.7 

18.75

18.75

19.0

19 1

19.1 

19.7

19.7 

19.75 

19.4

19.4

19.6

19.5 

19.35

19.55 

19.2

19.95

19 9

19.8

19.5

19.4 

20.25 

19.7

19.9 

20.25

18.8

18.8

19.0

19.3

19.6

19.7

19.75

19.8

19.6

19.5

19.5

19.65

19.7 

19. 45

19.35

19.25 

19.25

19.3

19.3 

19.3

19.3

19.35

19.4

20. 05 

21.05

20.5

20.05

19.75

19.7 

19.6

Nov.

19.9

1Q ^

19. 4

1Q A

19.35

19.3 

19.2

19 9

19.1

19 15

19.1

19.1 

19.1 

19.0

18.9

18.8

1 0 Q

18.8

18.8

18.85 

18.8

18.8

18.7

18.6 

18. 65 

18.7

18.6

19.4

19.3

19.2

19.2

19.25

19.25

1Q 3

19 3

19.3

19.4

19.4

19.5

19.5

19.5 

19.5

19.55

19.6 

19.6

19.6

19.6 

19.6

19.6

19.6

19. 75

19.7 

19.7

19.7

19.6

19.45

19.2

Dec.

18.6

ion

18.5

18.4

18.3 

18.3

18.3

18.3 100

18.4 

18.5 

18.4

18.4

18.35 

18.4

18.4 

18.5

10 OK

100

18.3

18.3 

18.15 

18.1

18.1 

18.0

19.2

19.2

19.4

19.4

19.55

19.6

19.6

1 Q (\

19.6

19.6

19.5

19.5

19.5

19.3 

19.2

19.1

19.3 

19.65

26.25

26.25 

21.5

21.3

23.05

22.1

21.15 

20.5

20.1

19.75

19.45

19.15 

18.85
COLOKADO KIVER DRAINAGE BASIN. 45

Daily discharge, in second-feet, of Colorado Rirer at Yuma, Ariz.,for 1907 and 1908.

Day. Jan.

1907.

9

4......--.--.

7... .........

8.... ........

g

10...--.-.-...

n... .........

12............

15............

16............

17............

19

20. ...........

21............

22... .........

oq

24--...-------

OK

26... .........

27............

28. ...........

29..-...-...-.

30............

31

1908.

2............

3. ......... ..

4............

5............

6............

7............

8............

9............

10............

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

14............

16............

17............

19

20............

21............

22. ...........

24............

25............

26............

27............

28............

9Q

30............

31............

38,400 

26, 900 

25,000 

21,600 

18,800

16, 000 

15,200 

16, 100 

15,900 

18, 400

18, 200 

44, 300 

40, 900 

29,700 

24,400

20, 400 

17, 100 

16, 300 

25, 200 

33, 400

25, 800 

23, 900 

22, 100 

18, 000 

15,200

15,000

13,800 

13, 200 

12,700 

12,700 . .

Feb.

12,400 

25, 700 

31,300 

26,600 

24, 400

19, 200 

17,700 

19, 000 

20, 500 

20, 800

20, 300 

18, 900 

17, 400 

16, 600 

17,000

16, 600 

14,900 

14,900 

14,700 

14, 100

15, 500 

18, 400 

17, 200 

15, 400 

15,000

19,600 

22, 600 

19,000

5,800 

6,100 

6, 100 

6,400 

7,000

7,200 

7,300 

7,400 

7,400 

7,200

6, 900 

6,800 

6,700 

6,700 

6,400

5,900 

5,800 

5, 600 

5,600 

5,600

5,600 

5,600 

5, 600 

5,800 

5,800

6,100 

6,300 

6,400 

6,400 

6,300 

6,100

6,300 

6,300 

6,500 

6,900 

7,400

9,500 

45, 000 

30, 000 

19,000 

15,000

14,200 

14, 200 

14, 800 

14,900 

14, 800

14,600 

14,300 

12,900 

12, 900 

11,800

10, 600 

11,500 

10, 000 

9,900 

11,700

16,900 

17, 400 

17,000 

16,000

Mar.

17,200 

16, 900 

19, 300 

18, 000 

18, 500

19, 300

28, 600 

68, 700 

45, 100 

34, 500

27, 300 

24,700 

25, 800 

25, 400 

21, 100

19, 200 

17,600 

16, 200 

15, 600 

14, 800

14, 800 

14, 800 

14,800 

15,900 

38, 400

28,400 

20, 200 

21,700 

30,800 

31,200 

31,600

13, 400 

12,500 

11,700 

Hi, 000 

16, 500

14,000 

13,400 

33,000 

27,000 

20, 900

18, 700 

24, 700 

18,500 

15, 200 

15,000

14, 300 

13, 400 

12,500 

11,300 

10, 500

10,100 

13, 400 

13,200 

14,000 

14,300

16,000 

17,000 

17,200 

17,000 

16, 800

Apr.

29,300 

29, 900 

32, 100 

30, 700

28, 500

29, 200 

28, 900 

27, 100 

24, 700 

24, 700

24,700 

28,000 

25,900 

26,000 

26, 000

28, 100 

29, 500 

33,000 

38, 200 

41,500

43, 800 

46,900 

48, 300 

49,900 

50, 500

49, 300 

45, 700 

46,200 

44, 600 

43, 500

15,900 

16, 400 

15, 800 

14, 600 

14, 300

13,900 

13, 500 

13, 100 

13,400 

12, 900

13, 000 

13, 200 

13, 400 

14,000 

14,100

14,000 

13,600 

13, 800 

14,000 

14, 700

14,800 

16,500 

24,000 

27, 100 

27, 100

26, 200 

26,000 

27,000 

28,100 

35,000

May. June.

35, 500 

32, 600 

31.200 

32, 400 

31,800

33,000 

33, 700 

33, 900 

33, 900 

33, 500

32, 800 

30, 600 

30,400 

29, 500 

29, 100

30, 000 

29,600 

28,600 

29,600 

31, 900

34, 700 

37, 500 

38, 700 

39,300 

41,300

45, 700 

51,000 

57, 800 

61,800 

65,500 

68,800

32,000 

29,800 

29,500 

28, 500 

27, 100

25, 400 

24,100 

23, 200 

23, 100 

23, 300

24, 500 

25, 200 

25, 100 

25, 000 

23, 000

23, 500 

26,000 

27, 900 

28,000 

28, 100

27, 800 

27,500 

27,000 

26,000 

25,000

25, 500 

29,900 

32,800 

33, 700 

32, 800 

31,300

72, 900 

76, 200 

77, 000 

77,700 

77, 400

87, 100 

83, 300 

80, 100 

77, 200 

72, 200

72,700 

81,800 

86, 500 

90, 400 

94, 400

97, 100 

101,000 

105, 000 

106, 000 

106, 000

106,000 

108, 000 

110,000 

112,000 

113,000

114,000 

115,000 

115,000 

115, 000 

115,000

32,200 

31,300 

30,300 

30,600 

30, 900

30, 000 

31,200 

33, 600 

33, 900 

34, 300

34, 800 

35,200 

36,000 

35, 600 

38, 700

40, 200 

39,400 

43, 600 

48, 300 

50, 400

51,700 

55, 100 

57, 900 

59, 700 

59, 700

61, 700 

58, 700 

50, 700 

55, 400 

55,000

July.

113,000 

111,000 

110,000 

110,000 

110,000

107, 000 

107,000 

108, 000 

110,000 

110,000

112,000 

112,000 

114,000 

113,000 

114,000

114,000 

110,000 

110,000 

104, 000 

102, 000

94, 900 

92, 000 

88, 900 

82, 400 

76,800

68, 800 

62, 700 

58, 800 

58,600 

52, 400 

55, 400

53, 800 

53, 000 

49,800 

53,100 

52,400

49,300 

45, 000 

41,100 

37,300 

35, 400

33, 900 

33, 100 

31, 200 

29,100 

29,800

29,100 

28,800 

28, 300 

28, 100 

25, 600

24, 000 

24,600 

24, 100 

24,100 

24, 100

24, 100 

21,600 

19, 800 

19, 300 

19,800 

18,900

Aug.

57,500 

58, 500 

61,900 

58, 200 

55, 300

51,200 

50,600 

50, 600 

50,300 

49, 900

46, 200 

41,300 

38, 300 

33, 900 

29,500

32,200 

32, 900 

29, 700 

28, 600 

25,400

29,200 

26,800 

25,700 

24, 500 

25, 800

27, 300 

26,300 

27, 300 

25,000 

23,900 

23, 100

18,600 

22, 400 

22, 700 

21,800 

21,400

24,900 

25, 200 

29, 500 

36, 100 

31,900

30, 100 

28, 200 

23, 700 

24, 000 

21,800

20,900 

20, 700 

18,900 

20,500 

20, 300

19,300 

22, 600 

25, 600 

33, 800 

33, 400

28, 200 

22, 600 

25, 000 

20, 200 

20, 500 

18,900

Sept.

31,100 

43, 300 

38, 400 

35, 000 

38, 000

37, 600 

34, 500 

35, 500 

31,900 

33, 300

27, 600 

24,200 

21,900 

21,900 

19, 600

18, 400 

17, 700 

16, 300 

14, 900 

14,200

15, 500 

16,500 

14,100 

13, 800 

13, 400

13, 100 

13, 200 

13,400 

14,000 

13, 200

17,300 

19,200 

19,300 

16,600 

14,000

12,700 

14, 100 

13, 600 

16, 400 

13, (.00

11,800 

11,000 

12,600 

10,300 

9,900

16,400 

10, 400 

9,000 

8,900 

8,600

8,200 

8, 600 

7,700 

7,200 

7,000

7,000 

7,700 

7,500 

7,500 

7,200

Oct.

12, 000 

11,600 

11,300 

10, 300 

10, 300

10, 100 

10, 200 

10, 300 

11,500 

12,200

12,200 

15,900 

15, 600 

15, 500 

13,500

13,500 

14,000 

14,000 

13, 800 

13, 600

14,600 

13,200 

15,900 

15, 900 

15, 500

14, 200 

13, 800 

18, 800 

15, 500 

16, 300 

17, 800

7,200 

7,200 

6,600 

7,900 

8,200

9,200 

8,500 

9,200 

10,000 

9,000

8, 500 

8,600 

9,300 

9,900 

8,400

8,000 

7,500 

7,500 

7,700 

7,700

7,700 

7,700 

8,200 

8,200 

11,400

20,600 

16,000 

13,700 

11,800 

12,100 

11,300

Nov.

16, 300 

14, 300 

12, 900 

12,900 

12, 500

11,900 

11,800 

11,800 

11,800 

11,600

11,200 

10, 900 

10, 800 

10, 700 

10, 500

10, 200 

10, 000 

9,600 

9,800 

9,900

9,700 

9,600 

9,600 

9,400 

9,300

9,100 

8,800 

8,900 

9,000 

8,800

10, 200 

9,900 

9,400 

9, 200 

9,600

8,500 

8,500 

8,500 

8,200 

8,200

8,200 

8,700 

8,700 

8,700 

8,700

8,000 

7,600 

7,600 

7,600 

7,500

7,500 

7,500 

7,300 

7,200 

7,200

7,200 

7,400 

7,300 

6,700 

6,000

Dec.

8,800 

8,600 

8, 500 

8,100 

7,800

7,900 

8,000 

7,800 

7,500

7, 600

7,700 

7,900 

7,800 

7,700 

7,500

7,300 

7, 300 

7,300 

7,300 

7,300

7,400 

7,500 

7,500 

7, 500 

7,200

7,100 

6,900 

6,300 

6,100 

6, 000 

5,800

6, 000 

6,200 

6,700 

6,600 

7,000

7,400 

7,400 

7,400 

7,700 

7,700

7,400 

7,300 

7,300 

6,900 

6,100

6,100 

7,300 

8,300 

72,500 

68,900

25, 400 

25,400 

37, 200 

29,800 

22,900

19,400 

15,800 

14,800 

12, 800 

11,200 

9,100

NOTE. These discharges were obtained by the indirect method for shifting channels.
46 SURFACE WATEE SUPPLY, 1907-8.

Monthly discharge of Colorado River at Yuma, Ariz.,for 1907 and 1908. 

[Drainage area, 225,000 square miles.]

Month.

1907.

July ..........-.-.-...--..-

1908.

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

Discharge in second-feet.

Maximum.

44, 300 

31,300 

68, 700 

50, 500 

68, 800 

115, 000 

114,000 

61, 900 

43, 300 

18, 800 

16, 300 

8,800

115,000

7,400 

45, 000 

33, 000 

35, 000 

33, 700 

61, 700 

53, 800 

36, 100 

19, 300 

20, 600 

10, 200 

72,500

72, 500

Minimum.

12, 700 

12, 400 

14, 800 

24, 700 

28, 600 

72, 200 

52, 400 

23, 100 

13, 100 

10, 100 

8,800 

5,800

Mean.

21, 500 

18, 800 

24, 100 

35, 300 

37, 900 

94, 800 

96, 500 

37, 600 

23, 200 

13, 600 

10, 800 

7,450

5, 800 35, 100

5,600 

6,300 

10, 100 

12, 900 

23. 000 

30, 000 

18, 900 

18, 600 

7,000 

6, 600 

6,000 

6,000

5, 600

6,320 

14, 200 

16, 100 

17, 800 

27,200 

42, 900 

32, 600 

24, 300 

11,400 

9, 510 

8, 090 

15, 900

18, 900

Per

square 

mile.

0.096 

.084 

.107 

.157 

.168 

.421 

.429 

.167 

.103 

.060 

.048 

.033

.156

0.028 

.063 

.072 

.079 

.121 

.191 

.145 

.108 

.051 

.042 

.036 

.071

.084

Run-off.

Depth in 

inches on 

drainage 

area.

0.11 

.09 

.12 

.18 

.19 

.47 

.49 

.19 

.12 

.07 

.05 

.04

2.12

0.03

.07 

.08 

.09 

.14 

.21 

.17 

.12 

.06 

.05 

.04 

.08

1.14

Total in 

acre-feet.

1, 320, 000 

1, 040, 000 

1, 480, 000 

2, 100, 000 

2, 330, 000 

5, 640, 000 

5, 930, 000 

2, 310, 000 

1, 380, 000 

836, 000 

643,000 

458, 000

25, 500, 000

389, 000 

817, 000 

990, 000 

1,060,000 

1,670,000 

2, 550, 000 

2, 000, 000 

1,490,000 

678, 000 

585, 000 

481, 000 

978, 000

13, 700, 000

Accuracy.

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B.

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B.

SALTON SEA NEAR SALTON, CAL.

Salton Sea originally formed a part of the Colorado Desert, which 

has an area of nearly 2,000 square miles and extends in a northwesterly direction almost 100 miles from the California-Mexico 

boundary line. It comprises two fertile valleys, one to the northwest of the sink, in Riverside County, known as the Coachella Valley, and the other to the southeast of the sink, in Imperial County, 

called the Imperial Valley. Salton Sea, which now partly fills the 

sink, lies between the two valleys and is partly in Riverside County 

and partly in Imperial County. The longest diameter of the sea 

has a northwest-southeast direction. On December 31, 1908, its 

surface was 206 feet below mean sea level, and it had a length of 

nearly 45 miles, a maximum width of about 15 miles, a minimum 

width of 9.5 miles, a maximum depth of 67.5 feet, and a superficial 

area of about 443 square miles. It is about 160 miles southeast of 

Los Angeles, 90 miles northwest of Yuma, and 50 miles north of 

Calexico.

A few thousand years ago, according to geologic evidence, what 

is now Salton Sea was a part of the Gulf of California, which then
COLOEADO EIVEE DRAINAGE BASIN. 47

extended about 200 miles farther northwest than at present. It is 

probable that the gulf waters then swept inland to the base, or 

nearly to the base, of San Jacinto Peak, although all evidence which 

would enable us to fix its exact limits has been obliterated by still 

more recent geologic events. At that time the mouth of Colorado 

River was in the vicinity of Yuma, 60 miles in an air line north of 

its present location. Presumably, then, as now, it was discharging 

annually enough silt to cover 1 square mile to a depth of 53 feet 

with dry earth, equivalent to 1 cubic mile each century, cut from 

the great canyons in the upper Colorado and the Gila Valley and 

carried to the Gulf. Running water will carry in suspension matter 

that quickly settles in still water, the settling process in this case 

being aided by the clarifying effect of the salt water.

As a result of these processes the Colorado delta was gradually 

extended southwestward toward the Cocopa Mountains, and when 

it reached them it had separated the old gulf into the present gulf 

and an inland sea. Delta growth, however, did not cease with the 

separation of the water body into two parts. Silt continued to be 

brought down the stream and to be deposited in its bed, along its 

banks, and in the still waters at its mouth. A stream, by this process of deposition along its channel, eventually builds the channel 

up until it is higher than the lands adjacent on either side. It is 

then in a condition of unstable equilibrium, and at some favorable 

time, as during an exceptional flood, it will break out of its immediate banks and establish itself in some more favorable course. By 

this process, oft repeated, it comes eventually to flow over all parts 

of its delta, building up each part in succession. By such a process 

the Colorado must have discharged alternately into the gulf and 

into the depression now known as the Salton Sink, meanwhile building up the delta dam that separates them until it reached a height 

of about 40 feet above sea level. During this process it is highly 

probable that water filled the Saiton depression and evaporated from 

it many times, for it must have quickly disappeared whenever the 

erratic river changed its course to the gulf, for.the run-off from the 

mountains that surround the sink is too slight to maintain a permanent water body in this region of intense evaporation. Meanwhile the original body-of salt water that occupied the sink had 

been displaced by the volumes of fresh water poured into it from 

the river, and in the intermediate stages of the lake's existence, at 

least, its water was fresh or nearly fresh. A clear and definite indication of the last occupanc}^ of this depression by a lake, presumably just before the river had shifted its course that it now follows 

to the gulf, may be seen in the remarkably well preserved old water 

line that rims the desert from Indio to the Cerro Prieto at a height 

of 40 feet above sea level. On the rocky points that projected into
48 SURFACE WATER SUPPLY, 1907-8.

the lake it is marked by a thick deposit of calcium carbonate, by 

slightly cut sea cliffs, and by a change in the profile of the rocky 

spurs at the water line. Where alluvial cones and the sandy floor 

of the desert formed the shore line beaches have been developed, 

and although of soft sand and easily eroded, they are even now well 

preserved, thus testifying to the recency of the action that produced them. Over the floor of the desert and along the sandy 

beaches are myriads of shells of fresh or brackish water mollusks ° 

that lived in the lake.

There are some reasons for thinking that the lake at this latest 

stage was not perfectly fresh, that its waters were at least distinctly "hard." Its area when it stood at 40 feet above sea level 

was somewhat in excess of 2,100 square miles. The average flow of 

the Colorado has been determined as about 11,000,000 acre-feet per 

annum. The evaporation from a surface of the area of the old lake, 

under the conditions that prevail here, has never been determined, 

but is undoubtedly high. If it is as high as 8 feet per annum, it 

would nearly equal the average annual inflow from the Colorado; if 

it is but 7 feet per annum, the average inflow would exceed the evaporation by 2,000 second-feet, or somewhat less than 14 per cent of 

the inflow. In either event, the waters of the lake would be markedly more alkaline after a term of years than those of the Colorado. 

The calcium carbonate incrustations on the rocky points about the 

shores of the old lake are best explained by supposing that the lake 

waters contained large quantities of this salt, so that wherever they 

broke in spray and evaporated more rapidly than usual, the carbonate 

was deposited. This necessary excess of inflow over outflow at the 

period of maximum area of the lake, taken in connection with the thick 

calcium carbonate incrustations on the shores, indicates distinctly hard 

water. It may be assumed that other salts than calcium carbonate 

were also present in large amount, for the conditions that would lead 

to the abundance of one salt would also lead to an abundance of the 

others. The shells so thickly distributed over the desert floor, however, are not salt-water forms, but are identical with those now found 

living in the springs and occasional permanent streams about the 

desert borders. Many of these springs and streams are somewhat 

brackish, and the creatures flourish in them. It seems probable, 

then, that the lake waters also were rather alkaline, perhaps even 

brackish, at the time the lake attained its maximum area.

The period at which this lake disappeared can not be precisely 

fixed. The time units of geology are too large and too indefinite to 

translate satisfactorily into years, so that when we say that the disappearance of the lake is the most recent of geologic events we still

« Stearns, Robt. E. C., Remarks on fossil shells from the Colorado Desert: Am. Naturalist, vol. 13, pp. 

141-154,
COLORADO RTVEB DEAINAGE BASIN. 49

leave the mind groping for a definite human standard of time. The 

sandy beaches which mark the borders of the ancient lake are cut 

away, to be sure, where washes cross them from the mountains, but 

in sheltered places they are still perfect. Where they stretch across 

an embayment from one rocky point to another they are mere embankments of sand, old barrier beaches, with depressions behind 

them once occupied by shallow lagoons. In other areas, where they 

contour the alluvial cones, they are gullied and cut away where 

streams have flowed across them, but in other places are preserved 

unscarred. At one locality noted a low sea cliff that had been cut 

in alluvial-fan material was still preserved, although the loose sand 

and bowlders would slump in a few heavy storms.

In a region of abundant rainfall such ephemeral forms as these 

would be more nearly obliterated within fifty years after the lake 

had disappeared than they are now in the desert. In such a region 

the precipitation is twenty times that of the desert. It is the crudest 

of estimates merely a guess in fact to state that, reasoning from 

geologic evidence alone, it may be a thousand years since the lake 

disappeared, yet it puts in concrete form such a guess as the geologist 

is able to make, and this guess may be correct within a margin of 

error of 50 per cent.

When human records are studied some evidence on this point is 

found, but it is almost as uncertain as to time as that furnished by 

the physical features. The Indians in the Coachella Valley have distinct legends to the effect that at some time in the past the valley 

was occupied by a large body of water. Professor Blake records that 

they told him of a time when a great body of water existed in which 

were many fish, and of the manner in which that water disappeared 

"poco a poco" little by little until the lake became dry.

The Indians now living in the desert put this event as far back as 

the lives of four or five very old men, say four or five centuries ago at 

the most. There are, of course, no records and there is no known 

check on this assertion. Statements by Indians as to time, beyond 

the limits spanned by their own memories, are notoriously inaccurate. 

Furthermore, we do not know the means used to procure this statement. The native races are usually very prone to follow the suggestions contained in leading questions, and so to give the answer 

desired by the questioner. To obtain an entirely independent and 

unguided answer is one of the most delicate of tasks. Yet their statement has some value, and combining the evidence of the physical 

conditions and the Indian legends it may be said that it is probable 

that the lake disappeared and left the desert, as we have known it in 

historical time, from five hundred to one thousand years ago.

During the summer of 1891 the high water in the Colorado overflowed into Salton Sink to such an extent as to endanger the Southern

24439 IRR 249 10 ^
50 SURFACE WATER SUPPLY, 1907-8.

Pacific Railroad line at its lowest point. In the summer of 1905, 

after a succession of winter and spring floods in Gila River, followed 

by an exceptionally heavy summer flow in the Colorado, there was a 

repetition of flood conditions in the sink on a much larger scale.

The gravity of the situation on this latter date, however, was 

greatly augmented by the interference of man. For several years 

preceding a small quantity of water had been diverted from the Colorado below Yuma, Ariz., to be used by the settlers of the Imperial 

Valley for irrigation and domestic purposes. The first water was 

diverted in the United States and conveyed to the Imperial Valley, 

after passing through Mexican territory, by means of an old river 

channel which had been one of the Colorado's distributaries during 

the formation of its delta, and is now known as Alamo River. The 

increased demand for water and the silting up of the original canal 

heading above the boundaiy line necessitated the cutting of an additional channel from the river below the boundary to connect with the 

canal. It likewise silted up, and to supply the urgent need for water 

a canal was cut 4 miles below the original heading to connect Colorado 

and Alamo rivers. This canal was not provided with protective 

headworks and had a gradient much greater than that of the river, so 

that with the unusual and prolonged summer flood in 1905, it began 

cutting, until in July it was canying 87 per cent of the total flow of 

the river. This large quantity of water flooded several hundred 

square miles about Calexico in the southern part of the Imperial Valley and caused serious loss both in the United States and in Mexico. 

These waters ultimately reached the Salton Sea, but in so doing they 

deepened and widened Alamo River into a great gorge and developed 

another drainage channel to the west through Imperial Valley in a 

second gorge now called New River (PL VI, B). Notwithstanding 

all attempts to control it the Colorado continued to pour its waters 

through Alamo and New rivers into Salton Sea until the early fall of 

1906, when it was finally shut off by the Southern Pacific Company. 

It broke again, however, on December 7, but was closed about two 

months later.

The rise of Salton Sea began in November, 1904, and continued 

throughout 1905 and 1906 and until February, 1907. In the summer 

of 1905 it endangered the Southern Pacific tracks to such an extent 

as to require frequent shifting to higher ground by means of "shoofly ; ' or spur tracks, which served temporarily until the latter part of 

the year when a high line about 40 miles in length was completed on 

the 200-foot contour below sea level. This line is still in use, though 

during the latter part of 1906 and the early part of 1907, the lower 

portion of it was seriously damaged by the action of waves. For use 

in the future, if required, another line has been located and graded
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 249 PLATE VI

A. SALTON SEA NEAR SALTON STATION, SOUTHERN PACIFIC RAILROAD, 205 FEET BELOW 

SEA LEVEL, AUGUST 29, 1906,

B. NEW RIVER CUTTING BACK AND UNDERMINING ITS BANKS, CAUSING DESTRUCTION OF 

MANY ACRES OF FINE FARM LANDS.
COLORADO RIVER DRAINAGE BASIN. 51

on the 150-foot contour below sea level. In addition to the damage 

done to the railroad the sea has completely submerged the plant of 

the New Liverpool Salt Company, below Mecca, and also a few ranches 

in the vicinity of Mecca.

The gage record from November, 1904, to February 26, 1906, 

was kept by the New Liverpool Salt Company. Their datum is the 

lowest portion of the sink, or at least that portion which first filled 

with water, so that the gage record shows the actual depth of the 

water from time to time. On February 23, 1906, the Government 

put in a gage on the same datum about one-half mile west of Salton 

railway station, which is 3 miles southeast of the old Salton station 

(PL VI, A). This gage consisted of a series of five posts, 6 inches 

by 6 inches by 6 feet, set in the ground about 3 feet deep, and so 

placed that when the water covered one it would just reach the next 

one farther back. It was not a great while, however, until the 

waves completely destroyed this gage. In the meantime the Southern Pacific Company had graduated a bent on the trestle bridge 

across Salt Creek, about 2J miles east of Salton, using the company's 

datum, and arrangements were made to have the Southern Pacific 

agent at Salton furnish the record from this gage, corrections being 

made to reduce the original datum. The zero of the gage is 273.5 

feet below mean sea level as determined from United States Geological 

Surve}^ bench marks, or at an elevation of 280.3 according to the 

Southern Pacific Company.

There is some uncertainty as to the elevation of the lowest point 

of Salton Sink, and it is now believed that the depth below sea level 

has been overestimated in the past. From the record of the depth of 

the water as it filled the lowest portion of the basin, as kept by the New 

Liverpool Salt Company, it appears that the maximum depth of water 

was 17 feet on October 4, 1905 (according to the gage and as checked 

by soundings later), when on the same date the water surface just 

covered the United States Geological Survey bench mark a few feet 

from the old Salton railway station. As this bench mark is 256.5 

feet below mean sea level, it would appear that the lowest point of 

the sink is 273.5 feet below mean sea level instead of 287 feet, which 

has been accepted heretofore. In 1891 Southern Pacific engineers 

reported the lowest point in the sink as 280.2, which corresponds 

to 273.4, United States Geological Survey.

Practically all the water that enters Salton Sea discharges through 

Alamo and New rivers, chiefly through the former. These rivers 

run through Imperial Valley and are the drainage channels for all 

the excess and waste water from the irrigation system and from the 

power plants.

There was a large inflow to the sea during July and parts of June 

and August, 1907. The approximate inflow to the sea as determined
52 SURFACE WATEK SUPPLY, 1907-8.

by discharge measurements made during the first half of 1908 is as 

follows:

Second-feet.

January........................................................ 500

February....................................................... 400

March........................................................... 200

April............................................................. 200

May............................................................. 200

June........................................................... 125

Total inflow January 1 to June 30, 1908, 97,700 acre-feet, or 

sufficient to cover the surface of the sea about 0.34 foot deep.

During 1908 the following measurements were made on Alamo and 

New rivers by H. R. Edwards, engineer for the New Liverpool Salt 

Company.

Discharge measurements of Alamo River near Brawley, Cal., in 1908. 

[By II. R. Edwards.]

Date.

1908.

Gage 

height.

Feet. 

6.6

6.5

6.4

6.2

a 0

6.2

6.2

6.4

6.6

6.6

6.5

6.5

7.3

6.8

5.9

6.1

5.4

6.0

5.8

5.9

6.0

6.1

5.9

Discharge.

Sec.-ft.

«OO

519

573

374

383

438

496

411

697

585

142

39

312

309

337

266

Date.

1908.

March 13 .......

March 24.......

March 29 .......

March 31.......

April 9. ........

April 11........

April 13. .......

April 17........

April 20........

April 22........

April 24........

April 26........

Gage 

height.

Feet. 

5.9

5.3

5.0

5.3

5.2

1 ft

5.5

5.1

5.6

5.8

5.5

5.7

5.0

5.8

5.0

4.4

4.6

4.9

5.0

5.2

5.9

6.1

6.1

6.4

5.1

Discharge.

Sec.-ft.

152

100

141

88

105 '

117

186

253

198

254

93

258

96

52

65

90

107

122

275

355

377

432

142

Date.

1908. 

April 28........

April 30........

May 2..........

June 22. ........

June 24. ........

June 28. ........

June 30. ........

Tiilv 9

July 3 ..........

July 7..........

JulyS..........

Gage 

height.

Feet.

5.5

5.6

5.4

5.8

K. 0

5.5

5.3

5.9

5.9

5.7

5.5

5.7

5.2

5.2

6.4

6.7

6.1

5.6

Discharge.

Sec.-ft. 

115

181

174

242

102

417

QQ1

307

268

274

520

589

401

Discharge measurements of New River near Brawley, Cal., in 1908. 

[By H. R. Edwards.]

Date. Gage 

height.

Feet.

Discharge.

Sec.-ft. 

44

36

39

Date.

April 13. 

June 22..

Gage 

height.

Discharge.

Feet. Sec.-ft.
COLORADO ETVER DRAINAGE BASIN. 53

Daily gage height, in feet, of Salton Sea near Salton, Cal., for 1907 and 1908. 

[J. A. Jeffrey, observer.]

Day.

1907. 

1...............

2...............

3............... 

4............... 

5...............

6...............

8............... 

9............... 

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20. .............. 

21...............

22...............

23............... 

24...............

25. ..............

26...............

27............... 

28...............

29............... 

30............... 

31...............

1908. 

1...............

2.. .............

3...............

4...............

5...............

6...............

8...............

9

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

12...............

15............... 

16...............

17...............

10

19

20............... 

21...............

22...............

23............... 

24...............

25...............

26............... 

27...............

28. ..............

29...............

30...............

^1

Jan.

72.6

72.7

72.8 

72.9 

72 9

73.0

73.1 

73.1 

73.2

73.4 

73.5

73.6 

73.7

73.8

73.9

74.0

74.1

74.2

74.3

75.0

75.2

75.3 

75.3

75.3

72.3

72.3

72.3

72.3

72.3

72.3

72.3

72.3

72.3

72.3 

72.3

72.3

72.3

72.3 

72.3

72.3

72.3

72.3 

72.3

72.3

72.3 

72.3

72.3

72.3 

72.3

72.3

72.3

72.3

79 3

Feb.

75.4

75.5

75.6 

75.6 

75.7

75.7

"76." 6"

76.0 

76.0

76.0 

76.0

76.0

76.0

76.0

76.0

76.0

76. 0 

76.0

76.0

76.0 

76.0

76.0

76.0

76.0

72.3

72.3

79 3

72.3

72.3

72.3 

72.4

72.4

72.4

72.3 

72.3

72.3

72.3

72.3 

72.3

72.3

72.3

72.2

72.2

72.2

72.2

72.2 

72.2

72.2

72.2 

72.2

72.2

Mar.

76.0

76.0

76.0 

76.0 

76.0

76.0

76.0

76.0 

76.0 

76.0

76.0 

76.0

76.0 

76.0

76.0

76.0

76.0

76.0

76.0

76.0 

76.0

76.0 

76.0

76.0

76.0

76.0 

76.0

76.0 

75.9 

75.9

72.2

72.2

72.2

72.2

72.1

72.1 

72.1

72.1

72.1

72.1 

72.1

72.1

72.1

72.1 

72.1

72.1

72.1

72.1

72.1 

72.1

72.0

72.0 

72.0

72.0

72.0 

72.0

72.0

72.0

72.0

Apr.

75.9

75.9

75.9 

75.9 

75.9

75.9

75.9 

75.9

75.9 

75.9

75.8 

75.7

75.7

75.7

75.7

71 9

71.9

71 9

71.9

71.9

71.9 

71.9

71.8

71.8

71.8

71.8 

71.8

71.8

71.8

71.8 

71.8

71.7

71.7

71.7

71.7 

71.7

71.7

71.6 

71.6

71.6

71.6 

71.6

71.6

71.6

71.6

May.

75.4

75.4

75.4

75.3

75.2

75.2 

75.2

75 °

75.1 

75.1

75.1

75.1

75.1

75.1

75.1 

75.1 

75.1

71.6

71.6

71.5

71.5

71.5

71.5 

71.4

71.4

71.4

71.4

71.4 

71.3

71.3

71.3

71.3 

71.3

71.2

n

o

71.2

71.2 

71.2

71.2

71.1 

71.1

71.1

71.1

71.1

71.1

71.1

71.1

71.0

June.

75.1

75.1

75.1 

75.1 

75.1

75.1

75.1

75.1 

75.1

75.0 

75.0

75.0

75.0

75.0

75.0

74.9

74.9

74.9 

74.9

74.9

74.9

74.8

74.8

74.7 

74.7

74.7 

74.7

71.0

71.0

70 9

70.9

70.9

70.9 

70.9

70.8

70.8

70.8

70.8 

70.7

70.7

70.7

70.7 

70.6

70.6

70.6 

70.6

70.6

70.6 

70.5

70.5

70.5

70.5

July.

74.7

74.7

74.6 

74.6 

74.6

74.6

74.6

74.6 

74.6

74.6 

74.6

74.6 

74.6

74.6

74.6

74.6

74.6

74.6

74.6 

74.6

74.6

74.6 

74.6

74.6

74 ^

74.5

74.5 

74.5

70.5

70.5

70.5

70.5

70.4

70.4 

70.4

70.4

70.4

70.3 

70.3

70.3

70.3 

70.3

70.3

70.2

70.2 

70.2

70.2

70.2 

70.2

70.2

70.1 

70.1

70.1

70.1

70.1

70.0

Aug.

74.5

74.5

74.5

74.5 

74.5

74.5

74 ^

74.4 

74.4 

74.4

74.4 

74.4

74.4 

74.4

74.4

74.4

74.4

74.4

74.3

74.3 

74.3

74.3

74.3 

74.3

74.3

74.3

74.3 

74.2

74.2

74.2

70.1

70.1

70.0

70.0

70.0

70.0 

69.9

69.9

69.9

69 9

69.9 

69.8

69.8

69.8 

69.7

69.7

69 7

69.6

69.6 

69.6

69.6

69.6 

69.6

69.5

69.5 

69.5

69.5

69.4

69.4

69.4

Sept.

74.2

74.2

74.2 

74.2

74.1

74.1

74.0

73.9 

73.9

73.8 

73.8

73.8 

73.8

73.8

73.7

73.7

73.7

73.6

73.6 

73.6

73.6

73.6 

73.6

73.5

73.5

73.5 

73.5

73.5 

73.5

69 4

69.3

69.3

69.3

69.3

69.3 

69.3

69.2

69.2

69.2

69.2 

69.2

69.1

69.1

69.1 

69.1

69.1

69.0

69.0 

69.0

68.9

68.9 

68.9

68.8

68.8 

68.7

68.7

68.7

68.6

Oct.

73.5

73.4

73.4 

73.3 

73.3

73.3

73.2

73.2 

73.2 

73.2

73.2 

73.1

73.1 

73.1

73.1

73.1

73.1

73.1

73.1

73.2 

73.2

73.2

73.2

73.2

73.2

73.2

73.2 

73.2

73.2 

73.1 

73.1

68.6

68.6

68.5

68.5

68.5

68.5 

68.5

68.4

68.4

68.4 

68.4

68.4

68.3 

68.3

68.3

68.2

68.1 

68.1

68.1

68.1 

68.0

68.0

68.0 

68.0

68.0

67.9

67.9

67 9

Nov.

73.1

73.1

73.1 

73.0 

73.0

73.0

73.0 

73.0 

73.0

73.0

72.9

72.9 

72.9

72.9

72.9

72.9

72.8

72.8

72.8

72.8

72.7

72.7 

72.7

72.7

72.7

72.6

72.6 

72.6

67 9

67.9

67.9

67.9

67.9

67.9 

67.9

67.9

67.8

67.9 

67 9

67.8

67.8 

67.8

67.8

67.8

67.8 

67.8

67.8

67.8 

67.7

67.7

67.7 

67.6

67.6

67.6

67.6

Dec.

72.6

72.6

72.6 

72.5 

72.5

72.5

T) ^

72.5 

72.5 

72.5

72.5 

72.5

72.4

72.4

72.4

72.4

72.4

72.4

72.4

72.4

72.4

72.4

72.4 

72.4

72.4

72.4

72.3 

72.3

72.3 

72.3 

72.3

67.6

67.6

67.6

67.6

67.6

67.6 

67.6

67.6

67.5

67.5

67.5 

67.5

67.5 

67.5

67.5

67.4

67.4

67.4 

67.4

67.4

67.4 

67.4

67.4

67.4 

67.4

67.4

67.4
54 SURFACE WATER SUPPLY, 1907-8. 

Monthly rise of Salton Sea near Salton, Cal.,for 1904-1908.

Month.

1904.

1905.

January ......

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

1906.

Monthly rise.

Feet. 

0.6

2

1.4

1.6

.8

1.2

1.0

2.2

4.4

2 2

1.2

1.4

1.6

2.9

1.1

1.8

Total 

rise.

Feet.

0.8

2 2

3.8

4.6

5.8

6.8

9.0

13.4

15.6

16.8

18.2

19.8

22.7

23.8

25.6

Month.

1906. 

March..........

April..........

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

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

1907.

February.. . . . March.."... ....

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

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

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

Monthly rise.

Feet. 

2.7

5.6

8.6

15.4

8.6

2 9

.9

1.2

_ 2

1.2

2.8

.7

- .1

- .5

 .4

 2

- .3

Total 

rise.

Feet. 

28.3

33.9

42.5

57.9

66.5

69.4

70.3

71.5

71.3

72.5

75.3

76. 0

75.9

75.6

75.1

74.7

74.5

Month.

1907.

1908.

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

Monthly rise.

Feet.

- .5

- .3

.0

- .1

_ o

- .4

- .6

- -5

 .5

«

8

- 1

_ 3

_ 2

Total 

rise.

Feet.

73.1

72.6

72.3

72.3

72.2

72.0

71.6

71.0

70.5

70.0

69.4

68.6

67.9

67.6

DUCHESXE! RIVER DRAINAGE BASIN. 

DESCRIPTION.

Duchesne River rises in the high peaks of the Uinta and Wasatch 

mountains in northwestern Utah, flows for about 100 miles in a 

general southeasterly direction, and enters Green River at Ouray, 

Utah, about 3 miles above the mouth of White River. The stream 

has a total drainage area of 4,000 square miles. Altitudes range 

from 4,700 feet at the mouth of the river to more than 13,000 feet at 

the summits of the highest peaks.

The principal tributaries of the Duchesne are Strawberry River, 

Rock (East) Creek, Lake Fork, and Uinta River.

The drainage basin of the upper Duchesne proper is mountainous 

in character. The stream emerges from the mountains at the mouth 

of Rock Creek, at an elevation of about 6,000 feet. From the mouth 

of Strawberry River down to Lake Fork the valley of the Duchesne 

is about 2 miles in average width, and is bordered by sandstone bluffs 

approximately 200 feet high. The bluffs on the northern side of 

the river are capped by heavy deposits of coarse river gravel and cobblestones. The general course of the stream throughout this stretch 

and on down to the mouth of the Uinta is easterly. Along the lower 

course of the stream the plateaus on either side of the stream valley 

are comparatively low and can be easily reached by irrigation canals 

from the main stream.

Strawberry River, the main upper tributary of the Duchesne, 

drains an area of about 1,200 square miles. The stream rises in the 

Uinta Mountains, and enters the Duchesne at Theodore. Its flow 

is derived chiefly from melting snow, except during the late summer, 

when the flow comes from small springs well distributed over the 

entire drainage basin. The upper stream basin has numerous tributaries, particularly from the north and west. Among the most im-
COLORADO RIVER DRAINAGE BASIN. 55

portant may be mentioned Indian, Bryaiit's Fork, Mud, Horse, Sugar 

Springs, and Co-op. They are all short and fall rapidly until they reach 

Strawberry Valley, through which they flow sluggishly in well denned 

channels. The main stream traverses the valley from north to south 

and is very sluggish. Indian Creek drains a small portion of the 

southern slopes of the Uinta Mountains. Its basin comprises smooth, 

rolling hills, fairly well timbered with pine and aspen. The normal 

flow is derived chiefly from springs. The greater part of the precipitation is in the form of snow, which covers the ground for six or eight 

months of each year. As it has an average elevation of 7,500 feet, 

Strawberry Valley is not well suited for agricultural development, but 

is excellently adapted to grazing. At the mouth of the river, about 

35 miles below Strawberry VahVv, the elevation is about 5,500 feet, 

and the fall in that distance is, therefore, nearly 2,000 feet.

Rock Creek, Lake Fork, Uinta. and its most important tributary, 

the Whiterocks, head in a series of small lakes in the Uinta Mountains. 

These lakes are fed by snow that exists the year round in the canyons 

and on the high slopes. All these streams drain areas mountainous 

and difficult of access in their upper portions, and all of them emerge 

from their canyons at an elevation of about 7,000 feet. Rock Creek 

continues its course in a narrow valley, but the others spread out so 

that their valleys are comparatively wide, and the adjoining benches 

comparatively low.

The drainage area of the Duchesne includes about 1,400 square 

miles of forest reserve, of which about 1,000 square miles may be 

classed as timbered land with an average stand of over 3,000 feet 

board measure to the acre. The principal species of timber are Engelmann spruce and lodgepole pine. The timbered land is distributed 

through the areas of the various tributaries about as follows: Upper 

Duchesne, 120 square miles; Rock Creek, 130 square miles; Strawberry River, 380 square miles: Lake Fork, 190 square miles; Uinta 

(above Whiterocks), 120 square miles; Whiterocks, 70 square miles.

Little information is avaliable as to the precipitation in this basin. 

In the plains portion of the area, the average rainfall is probably less 

than 10 inches, while the middle portion comprising considerably 

over one-half the area, probably averages between 10 and 15 inches. 

Only a small part in the high mountains has an annual precipitation 

in excess of 20 inches. At Fort Duchesne, at an elevation of 5,000 

feet, a record extending over several years shows a mean annual rainfall of only 7 inches.

Very severe winters are experienced throughout this whole drainage basin. In the high mountains the snowfall is very heavy, and in 

many places the snow lies throughout the whole year. In the hills 

above an elevation of 7,000 feet there is very considerable snowfall, 

which usually forms in drifts in canyons, and not infrequently the 

snow lies for extended periods in the valleys and plateaus of the
56 SURFACE WATER SUPPLY, 1907-8.

more open country. All the streams in this drainage are usually 

covered with thick ice from about December 1 to April 1 of each year.

During the last three or four years this section, especially that included within the former limits of the Uinta Reservation, has undergone a great irrigation development. The United States Indian Service 

has constructed a series of canal systems diverting water from Lake 

Fork, the Uinta, and Whiterocks, and the Duchesne proper. Private 

enterprise has also taken hold, and although the private canal systems 

now in operation are small, eventually several hundred thousand 

acres of land below an elevation of 6,500 feet will be brought under 

irrigation. Practically no storage is used in connection with any of 

the irrigation systems now in operation or under construction, and 

excellent opportunities for additional development still remain.

The United States Reclamation Service is constructing a tunnel, 

with capacity of 500 second-feet, which will divert water from a 

100,000-acre reservoir on the upper Strawberry across the divide to 

the headwaters of the Spanish Fork, there to be used for irrigation.

As the mountain drainage areas of all the main tributaries are 

studded with lakes,- numerous reservoir sites can easily be found 

where water can be stored for the irrigation of the valley lands. It 

is believed that the entire flow from the drainage basin can be equalized by storage.

At the present time there are no water-power plants in this drainage basin, though with proper storage a development of 200,000 horsepower could be made. Very little water will be diverted for irrigation above an elevation of 6,500 feet, and as most of the reservoir 

sites are at an elevation of upward 8,000 feet, good opportunities for 

power development exist above irrigation diversions. Some of the 

streams have falls of from 100 to 150 feet or more per mile along 

these stretches.

At the present time the water in these streams is unused except for 

irrigation.

None of the records of stream flow in this basin extend back of 

1899, and they are not continuous since that time. The driest year 

for which records are available was 1900, although 1902 was almost 

as low. The year of greatest average run-off was 1907.

DUCHESNE RIVER AT MYTON, UTAH.

This station, which was established October 26,1899, and has been in 

operation every year, or portions thereof since that time, is located at 

the highway bridge at Myton, Utah, and was described in the earlier 

reports as the Price Road Bridge station. The object of the station is 

to determine the amount of water available for storage and irrigation.

The station is situated about 3 miles below the mouth of Lake Fork 

and about 15 miles above the mouth of the Uinta River, and the 

records show practically the entire run-off of the Duchesne basin 

above the mouth of Uinta River.
COLORADO RIVER DRAINAGE BASIN. 57

Within the last few years numerous ditches have been built by the 

United States Indian Service to divert water from this stream and 

its tributaries for irrigation on the Uinta Reservation. Water is also 

diverted for irrigation outside the limits of the reservation by several 

private parties.

Results at this station are affected by ice conditions for about four 

months during the winter season, and it is usually out of the question 

to apply open channel ratings for any portion of that time. The discharge has also been more or less affected by eddies about the wooden 

crib piers and by drift lodged against them.

The datum of the gage remained practically constant from the 

establishment of the station until June 6, 1909. (See Water-Supply 

Paper 269.)

Results at this station have been fairly good.

Discharge measurements of Duchesne River at My ton, Utah, 1905 to 1908.

Date.

1905.

April 19........

1907. 

April 10........

April 25........

May 29. ........

June 12.........

June 29.........

July 19.........

1908.

March 24.......

April 6.........

April 14........

April 27........

May 13.........

June 21.........

July 9..........

October 9.......

October 17.....

Hydrographer.

H. S. Reed............. ............................

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

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

1. 1. Price. ... .......................................

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

R. H. Fletcher. ....................................

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

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

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

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

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

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

..... do....................... ...................... -

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

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

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

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

Width.

Feet. 

95

95

105

102

104

107

107

108

109

106

104

104

104

103

101

102

102

101

101

106

102

102

103

103

103

104

104

100

106

105

103

101

106

101

100

100

101

101

101

101

101

101

100

100

99

99

Area of 

section.

Sq.ft. 

366

363

394

598

665

728

806

851

981

874

678

666

628

640

620

630

564

613

602

626

624

604

583

631

630

783

682

657

825

793

705

605

683

639

626

586

589

601

595

611

608

584

575

571

580

581

Gage 

height.

Feet. 

5.22

5.20

5.41

6.04

7.10

7.90

8.35

8.82

9.90

8.50

6.75

6.52

6.10

6.03

5.94

5.95

5.90

5.80

5.68

5.60

5.80

5.60

5.57

5.91

6.28

6.68

6.81

6.60

8.00

7.87

6.73

5.93

6.39

6.25

5.93

5.93

5.70

5.77

5. 75

5.90

6.03

5.80

5.65

5.62

5.64

5.50

Discharge.

Sec.-ft. 

330

317

443

814

1,870

2,880

3, 910

4,650

7,340

3,930

1,490

1,330

844

757

732

705

672

572

497

497

621

498

457

696

915

1,160

1,280

956

2,500

2,270

1,530

676

1,000

965

737

717

555

634

616

704

764

629

554

508

564

559

o Ice conditions. b Ice out of stream.
58 SUEFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Duchesne River at Myton, Utah, for 1905. 

[H. Calvert, observer.]

Day.

1905. 

1..... .. .........

2...................

3...................

4. ..................

6...................

9.... ...............

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

12...................

13...................

14.............. ....

15...... ............

16

17...................

18...................

19

20. ..................

21...................

23...................

24...................

or

26. ..................

27...................

98

9Q

30. ..................

Mar.

5.20

5.20

5.20

5.20

5.25

5.25

5.28

5.21

5.20

5.20

5.20

5.20

5.12

5.12

Apr.

5.12

5.14

5.12

5.12

5.12

5.12

5.14

5.15

5.16

5.38

5.30

5.30

5.31

5.36

5.40

5.40

5.40

5.42

5.48

5.54

5.62

5.70

5.78

6.00

5.95

5.92

5.90

May.

5.98

6.02

6.00

G. 00

5.98

5.92

5.80

5.80

5.80

5.85

5.80

5.80

5.80

5.76

5.74

5.82

6.25

6.50

6.60

6.85

7.25

7.05

7.10

7.02

7.10

7.25

7.25

7.19

7.28

June.

7.65

8.10

8.25

8.55

8.55

8.40

8.49

8.70

9.00

7.90

8.05

8.30

8.45

8.25

8.00

7.75

7.35

7.20

7.45

7.60

7.41

7.45

7.20

7.20

7.20

6. 95

6.50

July.

6.30

7.20

7.20

6.95

6.70

6.20

5.88

5.80

5.80

5.74

5.69

5.65

5.75

5.85

5.80

5.70

5. 65

5.60

5.50

5.50

Aug.

-

........

Sept.

5.15

5.20

5.10

5.10

5.00

6.10

6.10

Oct.

5.45

5.50

5.35

5.30

5.30

5.30

5.30

5.30

o.30

5.30

5.30

5.30

5.28

5.28

5.28

5.28

5.28

5.28

5.28

5.25

5.25

5.25

5.25

5.25

5.22

5.20

5.20

5.20

5.20

5.20

5.20

Nov.

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.20

5.22

5.25

5.28

5.22

5.20

5.20

5.20

Dec.

........

......

........

NOTE. Ice conditions prior to March 13 and after November 28, 1905. These records were omitted 

from the 1905 report through an oversight.

Daily gage height, in feet, of Duchesne River at Myton, Utah, for 1907 and 1908. 

[H. G. Clarke and Alice Todd, observers.]

Day.

1907. a

2...................

3...................

4...................

5...................

6. ..................

7...................

8...................

9...................

10...................

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

13...................

14...................

16...................

17...................

18...................

19

20. ..................

21...................

22...................

23...................

24. ..................

25.............. ....

Mar.

........

........

........

........

Apr.

........

6.05

6.25

6.62

0.90

7.20

7.45

7.62

7.65

7.62

7.52

7.40

7.10

7.00

6.90

7.10

7.30

May.

7.48

7.35

7.30

7.18

7.20

7 92

7.15

7.10

7.08

7.18

7.35

7.85

7.85

7.65

7.50

7.65

7 o9

8.25

8.58

8.98

9. 18

9 40

9.40

9.25

June.

8.15

8.45

8.80

9.15

9.45

9.62

9.70

9.58

9.45

9.15

8.90

9.08

8.82

8.58

8.35

8.25

8.35

8.60

9.15

9.50

9.52

9.40

9.25

9.05

July.

10.12

10.25

10.35

10.48

10.62

10. (55

10.55

10.42

10.32

10.05

9.82

9.55

9.45

9.32

9.08

8.85

8.58

8.50

8.50

8.60

8.70

6.45

8.20

8. 10

8.20

Aug.

7.50

7.50

7.50

7.35

7.22

7.18

7.05

6.90

6.70

6.78

6.72

6.70

6.70

6.70

6.65

6.65-

6.50

6.55

6.55

6.50

6.42

6.40

6.40

6.40

Sept.

6.65

6.50

6.42

6.38

6.55

6.50

6.50

6.32

6.22

6.20

6.15

6.15

6.10

6.10

6.05

6.00

6.00

6.00

5.95

5.95

5.95

5.95

5.90

5.90

Oct.

5.90

5.90

5.90

5.90

5.90

5.98

6.05

6.05

6.00

5.95

5.95

5.95

5.95

5.95

5.95

5.92

5.90

5.90

5.90

5.90

5.90

5.90

5.90

5.95

Nov.

5.90

5.88

5.85

5.85

5.82

5.80

5.80

5.80

5.80

5.80

5.80

5.80

5.80

5.75

5.70

5.70

5.70

5.70

5.70

5.70

5.70

5.70

5.70

5.70

5.70

Dec.

5.70

5.70

5.70

5.75

5.80

5.80

5.80

5.70

5.70

5.70

5.70

5.70

5.75

5.80

a See footnote at end of table, next page.
COLORADO RTVER DRAINAGE BASIN. 59 

Daily gage height, in feet, of Duchesne River at Myton, Utah, for 1907 and 1908 Cont'd.

Day.

1907. 

26...................

27...................

9g

29........ ..........

;n...................

1908.

2...................

5...................

8...................

9...................

10...................

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

12...................

13....... .........

14....... ..........

15...................

10...................

18. ..................

19. ..................

20. ..................

21...................

22.... .. .. ........

23...................

24...................

25...................

26...................

27...................

28. ..................

29...................

30...................

Mar.

5.0

5. G

5.0

5.0

Apr.

7.28

7.30

7.52

7.58

5.5

5. 05

5.8

5.9

0.05

0.1

l> *"*

0.3

0.55

0.8

0.45

0.3

(i. 25

0. 15

May.

9.05

8.72

8.45

8.28

8.02

6.2

0.25

0.7

6.0

0.8

6.95

6.9

6.8

(i. 05

fl. 45

0. 0

6.8

6.85

7.0

0 9

0.8

June.

9.15

9 40

9.72

9.88

f' QZ.

6.8

0.7

0.6

6.55

0.5

0.55

6.6

6.95

7.7

8.0

9.0

9.15

9.25

9 0

8.45

8.1

7.8

7.65

8 A

8.45

8.45

8.5

7.85

July.

8.30

7.82

7.70

7.52

7.35

7.2

6.95

6.7

6.65

6.65

6.5

6.45

6 35

0.2

6.1

6.0

5.9

5.85

5.9

6.15

6.45

0.6

Aug.

6.52

6.52

6.52

6.75

6.25

0.15

6.2

6.3

6.2

6.15

0.05

0.05

6.0

6.15

\ Q

5.9

5.9

5.9

5.8

5.7

5.65

5.6

Sept.

5.90

Pi Qft

5.90

c c

5 45

5.5

5.75

5.65

5.6

5.5

6.0

5.8

5.8

5.75

Oct.

r QA

5.90

5.90

5.75

£ Q

6.0

^ Q

r o^

5.85

5.9

5.9

5.9

5.9

5.9

6.0

6.0

5 0^

5

Q

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

C o

Nov.

5.70

K 7A

5.70

5.85

^ 7

5.65

5.65

5.6

5.6

5.6

5 A

c A

5.6

= CE

5.6

5.5

5.5

5.5

f\ C

Dec.

5.6

C AK

5.6

5.6

C C

5 6

f. K

K C

5.5

5.5

5.25

c i r:

5 45

5.65

5.75

C QC

6.0

0.2

NOTE. Ice conditions prior to March 10 and during December, 1907. River open March 18, 1908. Ice 

conditions during December, 1908.

Rating tables for Duchesne River at Myton, Utah.

1904 TO 1906.

Gage

height.

Feet.

5.00

5.10

5.20

5.30

5.40

5. 50

5.60

5.70

5.80

Dis- .

charge.

Sec.-ft.

219

2l>4

313

306

423

484

548

615

685

Gafjc

height.

Feet.

5.90

(i. 00

0.10

6.20

6.30

6.40

6.50

6.60

0.70

Discharge.

Scc.-ft.

7(iO

840

920

1,005

1,100

1,200

1,305

1,415

1,530

C.asiP

height.

Put.

6.80

6.90 ".00

".10

".20

7.30 ".40

7.50 ".60

Discharge.

Scc.-ft.

1.650

1,770

1,890

2,020

2,150

2,290

2,430

2,575

2,725

Gage

height.

Feet.

7. in

7.80

7.90

8.00

8.20

8.40

8.00

8.80

9.00

Discharge.

Sec.-ft.

2,880

3,040

3,205

3,375

3,715

4,070

4,430

4,790

5,150

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 

discharge measurements made during 1904 to 1906 and is fairly well defined between gage heights 5.3 

feet and 8.2 feet.
60 SURFACE WATER SUPPLY, 1907-8.

Rating tables for Duchesne River at My ton, Utah Continued.

1907.

Gage 

height.

Feet.

5.70

5.80

5.90

6.00

6.10

6.20

6.30

6,40

6.50

6.60

6.70

Discharge.

Gage 

height.

Discharge.

Sec.-ft. , feet. Sec.-ft.

525

595

6.80 1,500

6.90

670 || 7.00

750

835

925

1,020

1,120

1,230

1,340

1,450

7.10

7.20

7.30

7.40

7.50

7.60

7.70

7.80

Gage Disheight. charge.

Feet. Sec.-ft.

7.90

1,680 1 8.00

1,800

1,920

2,050

2,180

2, 310

2,440

2,580

2,720

2, 860

8.10

8.20

8.30

8.40

8.50

8.60

8.70

8.80

8.90

3,010

3,160

3, 320

3,490 '

3,660

3,840

4,020

4,210

4,410

4,620

4, 830 '

Gage 

height.

Feet.

9.00

9.20

9.40

9.60

9.80

10.00

10.20

10.40

10.60

10.80

Discharge.

Sec.-ft.

5,050

5,520

6,000

6,510

7,050

7,610

8,190

8,790

9,410

10,030

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 17 

discharge measurements made during 1907 and is well defined.

MARCH 18 TO APRIL 19, 1908.

Gage

height.

Feet.

5.50

5.60

5.70

Discharge.

Sec.-ft.

430

485

550

Gage

height.

Feet.

5.80

5.90

Discharge.

Sec.-ft.

620

690

Gage

height.

Feet.

6.00

6.10

Discharge.

Sec.-ft.

770

850

Gage

height.

Feet.

6.20

6.30

Discharge.

Sec.-ft.

940

1,030

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 4 

discharge measurements made during March and April, 1908, and is well defined.

APRIL 20 TO JULY 6, 1908.

[Indirect method for shifting channels used ]

JULY 7 TO NOVEMBER 30, 1908.

Gage 

height.

Feet. 

5.40 

5.50 

5.60

Discharge.

Sec.-ft. 

395 

450 

510

Gage 

height.

Feet. 

5.70 

5.80 

5.90

Discharge.

Sec.-ft. 

570 

635 

700

Gage 

height.

Feet. 

6.00 

[ 6.10 

6.20

Discharge.

Sec.-ft. 

770 

850 

940

Gage 

height.

Feet. 

6.30 

6.40 

6.50

Discharge.

Sec.-ft. 

1,030 

1,130 

1,230

NOTE The above table is not applicable for ice or obstructed-ohannel conditions. It is based on discharge measurements made during July to November, 1908, and is well defined. Above gage height 6.5 

feet it is the same as the 1907 table.

Daily discharge, in second-feet, of Duchesne River at Myton, Utah, from April 20 to

July 6, 1908.

Day.

2

3...............

5. ..............

9

10...............

12...............

13...............

15 ...............

Apr. May.

815

1,020

1,310

1,250

1,190

1,490

1,420

1,300

1,180

1,130

1,030

985

June.

1.240

1,180

1,070

980

950

950

845

940

1,290

2,170

3,450

4,170

4,480

4,670

July.

2,000

1,840

1,770

1,840

1,850

........

........

........

Day.

1C...............

17....... .......

18...............

19...............

20...............

21...............

22..... . ...

oo

24...............

25 ...............

26

27 ...............

28...............

29...............

30...............

31...............

Apr.

1,240

1,500

1,480

1,250

1,080

930

880

870

780

May.

935

980

1,070

1,280

1,280

1,220

1,150

1,050

1,050

1,290

1,450

1,330

1,220

1,100

1,140

June.

4,120

3,650

2,250

2,050

2, 500

2,970

3,200

3,120

3,180

2,660

2,250

2,180

July.

NOTE. These discharges were obtained by the indirect method for shifting channels.
COLORADO EIVER DRAINAGE BASIN. 61

Monthly discharge of Duchesne Eiver at Myton, Utah, for 1905, 1907, and 1908. 

[Drainage area, 2,750 square miles.]

Month.

1905.1

July 1-22.......................

September 24-30. ...............

1907.

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

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

1908. 

March 18-31....................

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

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

Discharge in second-feet.

Maximum.

355 

840 

2,200 

5,150 

2,150 

920 

484 

366

2.650 

6,000 

7,610 

9,560 

2,440 

1,400 

792 

670 

595

620 

1,550 

1,490 

4,670 

2,000 

2,440 

850 

770 

668

Minimum.

274 

274 

643 

1,300 

484 

219 

313 

313

794 

1,900 

3,400 

2,470 

1,120 

670 

670 

525 

525

430 

430 

815 

845 

668 

480 

422 

602 

450

Mean.

313 

448 

1,220 

3,100 

902 

455 

355 

319

2,060 

3,290 

5,390 

5,680 

1,560 

874 

693 

564 

551

Per 

square 

mile.

0.114 

.163 

.444 

1.13 

.328 

.165 

.129 

.116

.749 

1.20 

1.96 

2.07 

.567 

.318 

.252 

.205 

.200

490 

813 

1,160 

2,400 

1,230 

869 

539 

682 

522 

527

.178 

.296 

.422 

.873 

.447 

.316 

.196 

.248 

.190 

.192

Run-off.

Depth in 

inches on 

drainage 

area.

0.08 

.18 

.51 

1.26 

.27 

.04 

.15 

.09

.58 

1.38 

2.19 

2.39 

.65 

.35 

.29 

.23 

.11

.09 

.33 

.49 

.97 

.52 

.36 

.22 

.29 

.21 

.22

Total in 

acre-feet.

11,800 

26,700 

75,000 

184,000 

39,400 

6,320 

21, 800 

17,700

383,000

85,800 

202, 000 

321,000 

349,000 

95,900 

52,000 

42, 600 

33, 600 

16, 400

1,200,000

13, 600 

48, 400 

71,300 

143,000 

75,600 

53,400 

32,100 

41,900 

31,100 

32, 400

543,000

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

B. 

B.

A. 

B. 

B. 

B. 

A. 

A. 

A. 

A. 

A. 

D.

a Omitted from 1905 report. & Ice conditions during December, 1908, and discharge estimated. 

STRAWBERRY RIVER IN STRAWBERRY VALLEY, UTAH.

This station, which was established May 12, 1903, and discontinued July 12, 1906, was originally located below the junction of 

Big and Little Strawberry rivers, above the mouth of Indian Creek. 

It was established below Indian Creek October 14, 1908, but no 

records of gage heights were obtained in 1908. Measurements are 

made from a cable whenever possible.

The records show the amount of water available for storage in 

Strawberry Valley for the use of the Reclamation Service. The 

water will be stored by a low dam and diverted through a tunnel 

18,500 feet long into the drainage basin of Spanish Fork, a tributary 

of Utah Lake, for irrigation and power development. This tunnel is 

not yet finished and there are no diversions above the station. The 

river is frozen over nearly five months of the year.
62 SURFACE WATEK SUPPLY, 1907-8.

Discharge measurements of Strawberry River in Strawberry Valley, Utah, 1908.

Date.

August26 o. ....

Hydrographer.

E. A. Porter. .........................................................

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

Gage 

height.

Feet.

5.86 

5.95

5.94

Discharge.

Sec.-ft. 

25.3 

31.3

29.5

a By wading about 100 yards above cable. & By wading 10 feet above cable. At cable.

STRAWBERRY RIVER AT THEODORE, UTAH.

This station, which was established June 10, 1908, is located at the 

west boundary of Theodore town site, along the wagon road to Heber, 

about li miles above the junction of the Strawberry with Duchesne 

River, about one-half mile upstream from the mouth of Indian Canyon, and about 18 miles below the mouth of Currant Creek. Discharge measurements are made by means of a car and cable. The 

drainage area above the station is nearly 1,200 square miles.

The records are important because they show the run-off of the 

lower Strawberry and the amount of water available for irrigation.

In connection with the Strawberry Valley project the United 

States Reclamation Service is building a tunnel 4 miles long, with a 

capacity of 500 second-feet, to convey water from a 100,000 acre-foot 

reservoir on Strawberry River across the divide to the Spanish Fork. 

This tunnel will not be completed for some time to come.

The flow of the stream is affected by ice for about four months 

during the winter season.

The chain gage is located about 50 feet downstream from the cable 

from which discharge measurements are made. The datum of the 

gage has remained constant since the station was established.

Very good results should be obtained at this station except at 

extremely high stages, when the stream overflows the left bank, rendering it impossible to make gagings.

Discharge measurements of Strawberry River at Theodore, Utah, in 19U8.

Date.

May 20o.......

June 22 ........

July 22. ........

July 31.........

Octobers......

October 27.....

November 10...

llydrographer.

R. H. Fletcher............ ......... ........ .

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

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

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

B. H. Fletcher...................... .......... .

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

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

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

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

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

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

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

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

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

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

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

Width.

Feet.

61

iQ

i\r\

60

59

60

60

59

56

59

Area of 

section.

Sq.ft. 

251

133

88

90

90

Q9

80

78

77

83

80

76

73

53

Gage 

height.

Feet.

2.48

2.52

2.32

2.38

2.41

2

0Q

2.35

2.23

Discharge.

Sec.-ft. 

671

0 = 0

140

178

98

169

110

135

81

a- Measured from bridge. 6 Wading measurement. Ice conditions.
COLOEADO RIVER DRAINAGE BASIN. 63

Daily gage height, in feet, of Strawberry River at Theodore, Utah, for 1908. 

[M. M. Smith, observer.]

Day.

1.... 

1.... 

3....

5....

6....

7....

8.... 

9

10....

11.... 

12..-. 

13.... 

14... 

15..-.

June.

3.2 

3.3 

3.3 

3.3 

3.3

July.

2.75 

2.7 

2.7 

2.7

2.6

2.6

2.6

2.6 

2.6

2.55

2.5 

2.5 

2.5 

2.5 

2.5

Aug.

3.35 

3.05 

2.55 

2.5

2.45

2.45

2.4 

2.4

2.4

2.4 

2.4 

2.5 

2.5 

2.4

Sept.

2.25 

2.25 

2.25 

2.25

2.25

2.25

2,2

2.35 

2.3

2.3

2.45 

2.45 

2.4 

2.35 

2.35

Oct.

2.3 

2.3 

2.45 

2.45

2.4

2.4

2.4

2.4 

2.4

2.4

2.35

2.35 

2.35 

2.35 

2.35

Nov.

2.4 

2.4 

2.4 

2.4

2.4

2.4

2.4

2.3

2.4 

2.4

2'. 4

Dec.

2.4 

2.5 

2.4 

2.65

2.5

2.5

2.5

2.4 

2.3

2.75

2.55 

2.6 

2.6 

2.55 

2.7

Day.

16.... 

17....

IS-... 

19....

20....

21....

22....

; 23.... 

: 24....

25....

26...

27 .... 

28.... 

29.... 

30..-.

June.

3.4 

3.45 

3.45 

3.3

3.2

3.1

3.1

3.05 

3.0

3.0

2.9 

2.9 

2.85 

2.8 

2.8

July.

2.5 

2.5 

2.45 

2.4

2.4

2.4

2.4

2.4 

2.4

2.35

2.35 

2.55 

2.6

2.6 

2.55 

3 2

Aug.

2.4 

2.35 

2.35 

2.4

2.35

2.35

2.35

2.35 

2 3

2.3

2.3 

2.3 

2.3

2.25 

2.25 

2.25

Sept.

2.3 

2.3 

2.3 

2.3

2.25

2.25

2.25

2.25 

2.3

2.6

2.5 

2.4 

2.35 

2.4 

2.35

Oct.

2.4 

2.4 

2.4 

2.4

2.4

2.4

2.3

2.35

2.4

2.4

2.35 

2.35 

2.4 

2.4 

2.4 

2 4

Nov.

2.4 

2.4 

2.4 

2.4

2.4

2.4

2.4

2.3 

2.3

2.35

2.4 

2.45 

2.4 

2.35 

2.35

Dec.

2.65

2.8 

2.9 

2.8

2.65

2.7

2.75

3.0 

3.15

3.2

3.2 

3.2 

3.2 

3.25 

3.3 

3.3

NOTE. Ice conditions during December.

Eating table for Strawberry River at Theodore, Utah, for 1908.

Gage 

height.

Feet. 

2.20

2.30

2.40

2.50

Discharge.

Sec.-ft. 

95

116

139

163

Gage 

height.

Feet. 

2.60

2.70

2.80

2.90

Discharge.

Sec.-ft. 

190

220

253

290

Gage 

height.

Feet. 

3.00

3.10

3.20

Discharge.

Sec.-ft. 

328

368

410

3.30 ! 453

Gage 

height.

Feet. 

3.40 

3.50

Discharge.

Sec.-ft. 

497 

519

NOTE. The above table is not applicable for ice or obstructed-phannel conditions. It is based on 16 

discharge measurements made during 1908 and is fairly well defined between gage heights 2.25 and 3.20 feet.

Monthly discharge of Strawberry River at Theodore, Utah, for 1908.

Month.

June 11-30. ..........................................

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

Discharge in second-feet.

Maximum.

519 

410 

475 

190 

151 

151

Minimum.

2.53 

128 

106 

95 

116 

116

Mean.

386 

179 

153 

123 

135 

136 

100

Run-off 

(total 

in acrefeet).

15,300 

11,000 

9,410 

7,320 

8,300 

8,090 

6,150

65,600

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

D.

NOTE. Ipe conditions during December and discharge estimated.

LAKE FORK BELOW FORKS NEAR WHITEROCKS, UTAH.

This station was established on May 10, 1907, but a fragmentary 

record was maintained at the same place during 1904. It is located 

about 500 feet downstream from the junction of the East and West 

forks, on the old Indian trail from Spanish Fork to Whiterocks, 

Utah, about 30 miles west of White Rock.

Being above all present diversions, the station furnishes valuable 

data for determining the run-off and showing the amount of water 

available for irrigation below and storage above.
64 SUKFACE WATEK SUPPLY, 1907-8.

No important tributaries enter between this station and the mouth 

of the stream, and none on either branch for some distance above. 

The drainage area above the station is about 300 square miles.

The flow of this stream could doubtless be equalized at comparatively small expense by utilizing the storage facilities afforded by a 

number of the small lakes and reservoir sites found on both branches 

of the stream above the station. As both of the main tributaries 

have rapid fall, splendid opportunities for power development are 

presented above all irrigation diversions.

The winter flow of the stream for several months is affected by 

most severe ice conditions.

The chain gage established May 10, 1907, has no relation whatever 

to the 1904 gage. Still another chain gage and datum have been 

used since September 1, 1907. This gage is located about 100 feet 

upstream from the cable from which discharge measurements are 

made.

As the stream bed is rough and the current is swift at high and 

moderate stages, the results obtained at this station are only fair or 

approximate except at low stages, when they are fairly good.

Discharge measurements of Lake Fork below forks near Whiterocks, Utah, in 1907 and 1908.

Date.

1907. 

May 21 ........

July 13. ........

July 25.........

1908.

Aprils.........

April 15........

April 26........

May 12.........

May 20.........

June28.........

JulyS..........

July 21.........

July 28. ........

October 26.....

Hydrographer.

I.I. Price. ..........................................

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

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

1. 1. Price. ..........................................

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

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

R. H. Fletcher. ....................................

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

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

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

R . H. Fletcher .....................................

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

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

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

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

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

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

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

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

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

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

R . H. Fletcher .....................................

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

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

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

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

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

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

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

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

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

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

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

Width.

Feet. 

70

75

75

80

80

75

65

52

55

71

62

58

52

54

61

62

65

65

60

92

100

80

65

59

64

69

58

56

58

58

58

60

58

56

54

53

40

Area of 

section.

Sq.ft. 

210

228

194

294

216

105

83

93

89

112

99

94

81

66

81

84

112

112

109

190

230

147

109

109

119

96

85

89

98

95

99

90

84

79

83

97

Gage 

height.

Feet. 

3.05

3.32

2.98

3.00

2.48

62.50

2.10

2.00

1.94

1.75

1.55

1.60

1.35

1.38

1.64

1.72

2.12

2.28

2.19

3.30

3.73

2.90

2.18

2.40

2.35

2.45

2.05

1.75

1.98

2.05

2.05

2.13

1.93

1.75

1.66

1.55

2.88

Discharge.

Sec.-ft. 

1,090

1,490

1 080

2,880

560

329

280

264

203

203

193

234

196

262

275

500

504

529

1,040

1,960

901

529

457

476

581

357

318

337

361

403

304

287

267

272

248

"Ice conditions. & Reading from new gage. Old gage read 1.30 feet. 

NOTE. Above measurements made at various sections.
COLORADO RIVER DRAINAGE BASIN. 65

Daily gage height, in feet, of Lake Fork below forks near Whiterocks, Utah, for 1907 and

1908.

[Charles B. Elliott, observer.]

Day.

1907.

9

3. ..................

4. ..................

G...................

9...................

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

12. ..................

13...................

14...................

15...................

16...................

17...................

18...................

19...................

20...................

21...................

22...................

9^

24...................

25

26...................

27 ...................

28...................

29...................

1908.

1.. .................

4. ..................

6. ..................

7...................

8. ..................

9. ..................

10...................

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

12...................

13...................

14...................

15...................

16...................

17...................

18...................

19...................

20...................

21...................

22...................

23...................

24...................

25...................

26...................

27...................

28

29...................

on

01

Mar.

........

Apr.

1.38

1.64

1.72

May.

2.00

2.10

2.20

2.20

2.20

2.15

2.25

2.40

2.85

3.00

0 1 C

3.00

2.90

2.75

2.70

9 P;P;

2 15

2.00

1 9

1 9

2.0

2.2

2.25

2.2

2.1

2 2

2.5

2.3

2.25

2.4

2.5

June.

2.60

2.95

3.10

3.25

3.50

0 CC

QIC

3.00

3.00

3.15

3.15

3.00

2.85

2.80

2.80

3.00

3.75

3.60

0 CC

4.05

2.3

2.2

2.15

2.1

2.1

2.35

2.6

\ c

4 65

4.6

4.6

3.3

3.2

3.35

4.1

3.6

3.4

July.

5.00

5.25

4.90

4.60

4.00

3.00

3.00

2.95

3.00

2.85

2.70

2.50

2.50

2.50

2.72

2.75

2.48

2.35

o 7c

2.40

2.25

2.00

3.05

^ n

2.9

2.75

2.7

2.65

2.65

2.6

2.45

2.35

2.3

2.15

2.1

2.1

2.15

2.05

2.1

2.4

2.4

3.05

2.85

2.85

Aug.

1.85

1.80

1.90

1.75

1.70

1.60

1.60

1.45

1.40

1.35

1.35

1.40

1.30

1.25

1.20

1.20

1.20

1.15

1.15

1.25

1.20

1.20

2.8

2.6

2.6

2.45

2.3

2.3

2.2

2.45

2.5

2.35

2.25

2.15

2.15

2.35

2.25

2.2

2.3

2.4

2.3

2.25

2.05

1 Q

1.9

1.9

Sept.

2.55

2.50

2.40

2.35

2.50

2.45

2.10

2.10

2.05

2.00

2.00

2.00

1.95

1.95

1.95

1.95

1.90

1.85

1.85

1.85

1.8

1.8

1.8

1.75

1 Q

2.1

2.0

2.0

2.0

2.05

9 1

2.05

2.0

2.0

1.9

1 9

1.9

1.8

1.8

1.8

1 8

2.3

2.1

2.0

2.0

2.0

2.0

Oct.

........

1.80

1.75

1.75

1.68

2.0

2 0

2 0

2.05

2.05

2.1

2.1

2.1

2.1

2.15

2.15

2 1

2.1

2.1

2.0

2.1

2.1

2.05

2.0

2 0

2.0

2.05

1.95

1.95

1.9

1.9

1.9

1.85

1.85

Nov.

1.70

1.70

1.70

1.65

1.65

1.65

1.55

1.55

1.50

1.50

1.45

1.50

1.55

1.60

1.60

1.60

1.55

1.40

1.40

1.55

1.52

1.55

1.50

1.50

1.55

1.60

1.8

1.8

1.8

1.75

1.8

1.8

1.8

1.75

1.75

1.75

1.7

1.7

1 7

1.7

1.6

1.6

1.6

1.65

1.65

1.6

1.6

1.65

1.6

1.65

1.7

1.7

1.6

1.6

Dec.

1.60

1.60

1.60

1.60

1.70

1.72

1.68

1.55

1.40

1.35

1.32

1.32

1.30

1.52

1.80

2.20

2.80

3.00

3.10

3.05

3.20

2.90

2.40

2.10

1.90

1.90

1.6

1.5

1.65

1.55

1.5

1.5

1.45

1.45

1.45

1.5

1.4

1.4

1 4

1 35

1.35

1.3

1.3

1.3

1.35

2.5

2 45

3.35

3.4

3.6

3.55

3.4

3.1

2.95

2.5

2.4

2.5

NOTE. A new gage was installed on the opposite bank of the river August 31, 1907, on account of 

change in channel conditions during the June floods. Readings began on the new gage September 1,1907. 

Ice conditions December 18 to 31, 1907.

Ice conditions during December, 1908.

24439 IRR 249 10 5
66 SUKFACE WATER SUPPLY, 1907-8.

Rating tables for Lake Fork below forks near Whiterocks, Utah.

[Daily discharges in 1907 determined by means of an approximate rating and indirect method for shifting channels.]

1908.

Gage

height.

Feet.

1.30

1.40

1.50

1.60

1.70

1.80

1.90

2.00

2.10

Discharge.

Sec.-ft.

195

214

235

257

281

307

336

367

402

Gage

height.

Feet.

2.20

2.30

2.40

2.50

2.60

2.70

2.80

2.90

3.00

Discharge.

Sfc.-ft.

444

493

548

610

675

745

820

900

985

Gage

height.

Feet.

3.10

3.20

3.30

3.40

3.50

3.60

3.70

3.80

3.90

Discharge.

Sec.-ft.

1,080

1,180

1,285

1,400

1,520

1,650

1,785

1,925

2,070

Gage

height.

Feet.

4.00

4.10

4.20

4.30

4.40

4.50

4.60

4.70

Discharge.

Sec.-ft.

2,220

2,380

2,545

2,715

2,890

3,070

3,255

3,445

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 

discharge measurements made during 1908 and is fairly well defined.

Daily discharge, in second-feet, of Lake Fork below forks near Whiterocks, Utah, for 1907.

Day.

2. ... ... .... ....................

3....................................

4.................................. .

5....................................

fi. ...................................

8.................................. .

9....................................

10....................................

1 9

1 0

1 c

16....................................

17....................................

18....................................

19

20........... ........................

21....................................

22....................................

23 ....................................

24 ....................................

25. ...................................

26....................................

27....................................

28....................................

29....................................

30....................................

May.

450

450

490

540

540

540

520

520

560

640

760

950

1,080

1,190

1,390

1,250

1,080

990

870

830

760

730

June.

830

1,040

1,190

1,390

1,810

1,920

1,630

1,720

1,250

1,080

1,080

1,250

1,250

1,080

950

900

900

1,080

1,800

2,800

3,880

3,740

2,840

2,830

3,240

3,720

4,800

5,760

6,200

July.

7,500

7,700

8,300

9,300

8,200

7,500

6,600

5,700

5,750

2,700

2,750

2,800

2,740

2,880

2,480

2,110

1,680

1,680

2,160

2,230

1,650

1,440

2,230

1,520

1,290

1,120

1,020

1,020

930

Aug.

890

930

860

930

820

790

720

720

700

640

590

610

590

560

510

510

510

490

490

560

530

510

510

510

560

Sept.

610

560

480

450

560

520

520

450

380

380

380

320

320

300

285

285

285

270

270

270

255

255

255

255

260

260

260

Oct.

265

265

265

265

260

260

260

260

260

255

255

255

250

250

250

240

240

240

240

235

235

230

230

230

230

230

220

220

210

Nov.

210

210

210

210

210

200

200

200

200

190

185

185

180

180

170

180

185

160

160

180

185

180

180

185

190

Dec.

190

190

190

190

190

190

200

210

210

210

185

160

150

150

150

150

150

150

150

150

NOTE. These discharges were obtained by the indirect method for shifting channels. Daily discharges estimated by comparisons with adjacent stations for days on which there are no gage records. 

Ice conditions December 18 to 31, 1907; discharge estimated.
COLORADO RIVER DRAINAGE BASIN. 67

Monthly discharge of Lake Fork below forks near Whiterocks, Utah, for 1907 and 1908.

Month.

1907. 

May 10-31 ...........................................

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

1908. 

March 15-31 .........................................

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

December

Discharge in second-feet.

Maximum.

1,390 

6,200 

9,300 

930 

610 

265 

210 

210

Minimum.

450 

760 

930 

490 

255 

210 

160

610 

3,350 

1,280 

1,340 

493 

423 

307 

272

336 

402 

384 

336

294 

322 

257 

228

1

Mean.

779 

2,160 

3,490 

634 

351 

245 

189 

169

200

237 

422 

1,550 

721 

529 

351 

377 

280 

251

Run-off 

(total in 

acrefeet).

34,000 

129, 000 

215,000 

39,000 

20, 900 

15,100 

11,200 

10,400

475,000

6,740 

14, 100 

25, 900 

92, 200 

44, 300 

32, 500 

20,900 

23, 200 

16, 700 

15,400

292,000

Accuracy.

B.

C. 

D. 

C. 

C. 

D. 

C. 

D.

I). 

D. 

C. 

C. 

C. 

C. 

B. 

B. 

B. 

IX

NOTE. Discharge estimated for periods September 7-12 and September 24 to October 27, 1907. Discharge estimated for period of ice conditions December 18-31, 1907.

Discharge March 15 to May 10, 1908, based on comparative hydrographs for stations in the Uinta River 

drainage.

Discharge estimated during the frozen period, December, 1908.

LAKE FORK NEAR MYTON, UTAH.

This station, which is located about 3 miles above My ton, Utah, 

was originally established July 3, 1900, and was known as the station 

on Lake Fork at mouth. It was discontinued at the end of the season of 1903, although several discharge measurements were made in 

1904, and was reestablished June 13, 1907. On October 14, 1907, a 

cable equipment was installed about one-quarter mile above the 

gage.

As the station is only about one-half mile above the junction of 

the stream with Duchesne River, the records show the amount of 

water which Lake Fork contributes to the Duchesne, and in connection with the records obtained at the station on Lake Fork below 

the forks, which is about 20 miles upstream and above all present 

diversions, they indicate also the amount of water diverted for irrigation along the stream. No important tributaries enter between 

the two stations.

Several canal systems built by the United States Indian Service 

take water from this stream above the station for irrigation. Some 

private canal systems are proposed or in operation. As at all other 

stations in this basin, the stream is icebound for several months 

during the winter season.
68 SURFACE WATER SUPPLY, 1907-8.

The gage was in the same position and the same datum was used 

from 1900 to 1904, inclusive. During 1907 and 1908, three distinct 

gages and datums were used: From June 13 to 30, 1907, from August 

18 to December 31, 1907, and during 1908.

The results obtained during 1908 have been very satisfactory, 

except for a few difficulties in the gage readings. Previous records 

are not so good.

Discharge measurements of Lake Fork near Myton, Utah, in 1907 and 1908.

Date.

1907. 

May 296. ......

October 31 .....

1908. 

March 24.......

April 27. .......

May 13. ........

May 22. ........

July 8. .........

July23.. .......

July 31. ........

September 29...

October9......

October 29.....

Hydrographer.

I.I. Price...........................................

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

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

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

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

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

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

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

R. H. Fletcher .....................................

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

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

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

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

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

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

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

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

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

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

R. H. Fletcher. ....................................

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

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

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

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

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

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

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

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

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

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

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

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

Width.

Feet. 

39.6

39.6

39.6

72

76

66

66

64

64

66

64

64

65

65

65

65

65

69

68

66

65

66

66

66

65

65

65

65

65

65

65

65

65

65

Area of 

section.

Sq.ft. 

243

276

347

180

171

146

141

133

117

148

125

115

128

133

159

169

161

318

286

210

149

197

175

160

156

152

141

144

148

158

143

134

138

133

155

Gage 

height."

Feet. 

5.45

6.30

8.08

2.50

2.45

2.40

2.28

2.20

2.12

2.32

3.48

3.44

3.65

3.78

4.25

4.25

4.25

6.44

6.13

5.03

4.05

4.83

4.45

4.15

4.13

4.10

3.93

3.90

4.00

4.13

3.94

3.72

3.80

3.77

4.10

Discharge.

Sec.-ft. 

730

1,190

2,380

230

207

176

185

172

130

179

133

117

150

176

261

300

270

1,460

1,220

609

243

478

265

264

247

207

217

242

306

222

172

188

181

141

"Three gages were used, 1907-8, having no relation to each other. Measurements May 24 to June 29,1907, 

refer to gage No. 1. Measurements September 16 to December 10,1907, refer to gage No '2. Measurements 

for 1908 refer to gage No. 3.

6 Measured from bridge

c Wading measurement.

<JIce conditions.

« Wading measurement at cable section.
COLORADO EIVEK DRAINAGE BASIN. 69

Daily gage height, in feet, of Lake Fork near Myton, Utah, for 1907 and 1908. 

[James McAfee, observer.]

Day.

1907.o

3...................

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

12...................

0

15...................

16...................

20...................

22 ........ .

73 .

24...................

25...................

26...................

27................ ...

28...................

29............. ......

30...................

31...................

1908. c 

1...................

2...................

3...................

4...................

5...................

6...................

8...................

9...................

10...................

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

12...................

13...................

14...................

15...................

16...................

17...................

18...................

19...................

20. ..................

21...................

22...................

23...................

24...................

25...................

26...................

27...................

28...................

29...................

30...................

Mar.

3.45

3.45

3.45

3.45

3.45

Apr.

3.45

3.45

3.45

3.45

3.45

3.5

3.55

3.55

3.45

3.5

3.55

3.6

3.7

3.7

3.7

3.8

3.8

3.8

3.9

3.95

3.95

3.85

3.85

3.85

3.8

4.0

3.85

May.

3.8

3 9

9 Q

4.1

4.3

4.3

4.3

4.5

4.3

4.25

4.3

4.25

4.25

4.2

4.15

4.15

4.15

4.3

A Q

4

0

4.3

4.3

4.6

4.3

4

9

June.

8.2

6.0

5.7

7.0

7.5

7.4

7.0

6.7

7.-0

7.5

8.5

4.4

4.3

4.3

4.2

4.2

4.25

4.25

4.3

4.85

6.65

7.45

7.75

7 95

7.95

7.35

6.55

5.6

5.9

7.05

6.75

7.0

6.9

6.8

6.85

6.2

6.05

6.25

July.

( b )

5.6

5.55

5.7

5.5

5.35

5.3

5.15

5.05

4.9

4.75

4.75

4.75

4.75

4.7

4.7

4.6

4.5

4.4

4.4

4.2

4.1

4.4

4 05

4.0

4.1

4.25

4.55

4.9

Aug.

3.0

3.0

2.9

2.8

2.8

2.8

2.8

2.8

3.0

2.8

2.7

2.7

3.0

3.0

5.25

5.2

4.7

4.65

4.5

4.5

4.45

4.25

4.1

4.2

4.15

4.35

4.45

4.5

4.35

4.4

4.25

4.15

4.2

4.2

4.3

4.2

4.2

4.1

4.2

4.0

3.95

3.95

Sept.

2.8

2.8

2.7

2.7

2.8

2.8

2.7

2.7

2.6

2.6

2.5

2.5

2.5

2.4

2.4

2.4

2.4

2.4

2.4

2 4

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.4

3.9

3.8

3.65

3.65

3.7

3.8

4.05

4.1

4.0

4.0

4.05

4.05

4.0

3.95

3.9

3.85

3.7

3.65

3.6

3.45

3 fi

3.8

4.3

4.2

3.95

3.9

Oct.

2.3

2.3

2.3

2.3

2.3

2.4

2.5

2.4

2.4

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.3

2.3

2.2

2.2

2.2

2.2

3.7

3.8

3.9

4.05

4.2

4.15

4.1

4.05

4.05

4,05

4.05

4.05

4.05

4.0

3.95

4.0

4.2

4.2

4.2

4.2

41^

4.0

Q Q

3 9

3.85

3.85

3 9

Q Q

3.9

4.0

3.95

Nov.

2 2

2.12

3.9

3.8

3.8

3.85

3.9

3.9

3.8

3.8

3.7

3.8

3.75

3.7

3.7

3.75

3.8

3.8

3.8

3.7

3.7

3.7

 ? 7

3.7

o 7

3.55

3.55

3.45

3.45

3.5

3.6

Dec.

2.32

3.6

3.6

3.75

3.6

3.6

3.8

4.0

4.05

4.05

4.05

4.05

4.05

4.05

3.9

3.9

3.9

3.8

3.8

3.75

3.65

3.6

3.6

3.6

3.75

3 9

3.9

3 9

4.1

4.2

a Gage heights, August 18 to December 10,1907, have no relation to gage heights for June, 1907.

t> Bridge and gage washed out July 1,1907.

e Gage heights, 1908, have no relation to gage heights for 1907. Ice conditions December 6 to 31,1908.
70 SUEFACE WATER SUPPLY, 1907-8.

Rating tables for Lake Fork near My ton, Utah. 

JUNE 13 TO 30, 1907.

Gage 

height.

Feet.

5.70

5.80

5.90

6.00

6.10

6.20

6.30

6.40

Discharge.

Sec.-ft.

860

910

965

1.020

1,075

1,130

1,190

1,250

Gage 

height.

Feet.

6.50

6.60

6.70

6.80

6.90

7.00

7.10

7.20

Discharge.

Sec.-ft.

1,310

1,370

1,430

1,490

1,555

1,620

1,690

1,760

Gage 

height.

Feet.

7.30

7.40

7.50

7.60

7.70

7.80

7.90

8.00

Discharge.

Sec.-ft.

1,830

1,900

1,970

2,040

2,110

2,180

2,255

2,330

Gage 

height.

Feet.

8.10

8.20

8.30

8.40

8.50

Discharge.

Sec.-ft.

2,400

2,470

2,540

2,615

2,690

NOTE. The above -table is not applicable for obstructed-channel conditions. It is based on 3 discharge measurements made during May and June, 1907, and is only fairly defined.

AUGUST 18, 1907, TO DECEMBER 9, 1907.

Gage

height.

Feet.

2.10

2.20

2.30

Discharge.

Sec.-ft.

125

150

175

Gage

height.

Feet.

2.40

2.50

2.60

Discharge.

Sec.-ft.

200

230

260

Gage

height.

Feet.

2.70

2.80

2.90

Discharge.

Sec.-ft.

295

330

365

Gage

height.

Feet.

3.00

Discharge.

Sec.-ft.

405

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 7 

discharge measurements made during September to November, 1907, and is not well defined.

1908.

Gage 

height.

Feet.

3.40

3.50

3.60

3.70

3-80

3.90

4.00

4.10

4.20

4.30

4.40

Discharge.

Sec.rft.

115

132

150

169

190

212

235

258

283

310

340

Gage 

height.

Feet.

4.50

4.60

4.70

4.80

4.90

5.00

5.10

5.20

5.30

5.40

5.50

Discharge.

Sec.-ft.

373

407

445

485

527

572

620

671

724

778

834

Gage 

height.

Feet.

5.60

5.70

5.80

5.90

6.00

Discharge.

Sec.-ft.

892

951

1,012

1,075

1,140

6. 10 1, 205

6.20

6.30

6.40

6.50

6.60

1,275

1,345

1,415

1,485

1, 560

Gage 

height.

Feet.

6.70

6.80

6.90

7.00

7-20

7.40

7.60

7.80

8.00

Discharge.

Sec.-ft.

1,635

1,715

1,795

1,875

2,045

2,215

2,390

2,570

2,750

NOTE- The above table is not applicable for ice or obstructed-channel conditions. It is based on 24 

discharge measurements made during 1908, and is well defined.
COLOEADO RIVER DRAINAGE BASIN.

Monthly discharge of Lake Fork near Myton, Utah, for 1907 and 1908. 

[Drainage area, 475 square miles.]

71

Discharge in second-feet.

Month. 

Maximum.

1907. 

June 13-30 .............. ....... 2, 690

October................. .... 230

December 1-9... . . ...... 180

Minimum.

860 

295 

175 

150 

130 

150

The period

Mean.

1,590 

354 

230 

176 

142 

163

;

190S. 

March 24-31 ................... 124

April .......... ... .......... 235

June............. .... .... 2,700

July...... ...... .... ...... 951

September. ............ ........ 301

124

124 

190 

283 

224 

201 

124 

169 

124 

135

124

170 

302 

1,260 

476 

328 

208 

237 

173 

147

Per

square 

mile.

3.35

.745 

.484 

.371 

.299 

.343

.261 

.358 

.636 

2.65 

1.00 

.691 

.438 

.499 

.364 

.309

Run-off.

Depth in 

inches on 

drainage 

area.

2.24 

.39 

.54 

.43 

.33 

.12

.08 

.40 

.73 

2.96 

1.15 

.80 

.49 

.58 

.41 

.36

Total in 

acre-feet.

56,800 

9,830 

13, 700 

10,800 

8,450 

2,910

102, 000

1,970 

10,100 

18,600 

75,000 

29,300 

20,200 

12, 400 

14, 600 

10, 300 

9,040

202,000

Accuracy.

C. 

C. 

B. 

B. 

D. 

D.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

D.

NOTE. Discharge estimated for November and December. 1907. Discharge estimated for the frozen 

period, December (>-31, 1908.

UINTA RIVER NEAR WHITEROCKS, UTAH.

This station was originally established in connection with the 

investigation for the water supply of the Uinta Reservation, on September 16, 1899, and the records were continued until the latter part 

of 1904. It was reestablished in the same locality on August 13, 1907.

The present station is located at the highway bridge on the government road up Uinta Canyon, usually known as the saw mill road. 

The bridge is about 10 miles northwest of the Indian agency at 

Whiterocks. Previous records were taken at points a short distance 

upstream from this bridge.

The data obtained show the amount of water available for storage 

and power development above and for irrigation below.

The station is situated about a mile below the mouth of Pole Creek. 

The Whiterocks comes in several miles below, but there are no other 

tributaries of any importance except some dry gulches which occasionally carry considerable flood water.

No water is diverted from the stream above the station, but the 

United States Indian Service has constructed a series of irrigation 

canals, which divert water at various points below. The upper 

reaches of this stream present excellent opportunities for storage and 

power development.

The results at the station are affected by ice during the winter 

season. Winter measurements are usually taken at riffles or open 

places in the channel.
SURFACE WATER SUPPLY, 1907-8.

The same gage was used from 1899 to 1904, inclusive. The gage 

established in August, 1907, was located a short distance upstream 

from the old gage, and at a different datum. The present chain gage 

has no determined relation to this last gage. It was established on 

October 22, 1907, and is located on the bridge about a mile downstream from the other gage.

As no one lives in the vicinity of the gage, it is read only when the 

hydrographer visits the station to take discharge measurements, 

and the discharge for intermediate days is estimated by comparison 

with the hydrographs of other streams in that locality.

As the stream bed is rough and the current swift at high and moderate stages, the discharge measurements, except at low stages, are 

apt to be considerably in error. The method of computing daily 

and monthly discharges makes them necessarily only rather approximate.

Discharge measurements of Uinta River near Whiteroclcs, Utah, in 1907 and 1908.

Date.

1907.

October 9

1908. 

March 30«......

April 10a.......

April 18........

April 25........

May 11.........

May 19. ........

June 18.........

June 27.. .......

July 7..........

July 21. ........

July 27........

August 28......

October 23.....

Hydrographer.

I. I. Price ..........................................

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

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

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

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

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

R . H. Fletcher .....................................

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

.....do....-..-.--....--.-....-...-.-................

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

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

.....do..-.......-.-..--.-..-....-..-..-...--..-.....

.....do.-..--...-...-..-....-.-..--.-..-..-....-.....

R . H. Fleteher .....................................

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

.....do.-..-.......-..-..-..-..-..-.--..-..-..-......

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

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

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

-....do..............................................

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

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

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

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

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

Width.

Feet. 

83

84.5

68

70

69

68

63

65

69

71

73

75

73

78

80

75

72

75

75

73

71

71

75

72

72

71

70

70

70

70

Of

Area of 

section.

Sq.ft. 

113

101

90

86

80

73

64

61

72

85

96

129

104

161

163

134

112

125

122

105

98

94

117

101

07

95

81

83

76

206

Gage, 

height.

Feet. 

1.10

.90

.78

1.30

1.22

1.10

98

1.05

1.18

1.40

1.52

1.88

1.63

2.20

2.35

2.00

1.70

1.90

1.82

1.85

1.60

1.45

1.48

1.85

1.50

1.50

1.45

1.30

1.28

1.20

1.22

3. 10

Discharge.

Sec.-ft.

301

286

219

206

123

202

221

315

348

1,010

1,240

706

544

479

329

298

316

448

333

323

294

241

240

213

155

237

a Some ice. 6 Ice conditions.

NOTE. On October 9, 1907, station waa moved 1 mile down stream to a bridge. New gage established 

at bridge on October 22.1907.
COLORADO RIVER DRAINAGE BASIN.

Monthly discharge of Uinta River near Whiterocks, Utah, for 1907 and 1908. 

[Drainage area, 218 square miles.]

73

Month.

1907.

The period. .............................................

1908. 

March 15-31 ...................................................

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

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

The period ...............................................

Discharge in second-feet.

Mean.

373

308 

250 

174

K6 

172 

3^8 

910 

636 

444 

327 

325 

236 

202

Per 

square 

mile.

1.71 

1.41 

1.15

.798

.670 

.789 

1. GO 

4.17 

2.92 

2.04 

1.50 

1.49 

1.08 

.927

1

Run-off.

Depth in 

inches on 

drainage 

area.

1.21 

1.57 

1.33

.89

.42 

.88 

1.84 

4.65 

3.37 

2.35 

1.67 

1.72 

1.20 

1.07

Total in 

acre-feet.

14, 100 

18,300 

15,400 

10,400

58,200

4,920 

10,200 

21,400 

54,100 

39, 100 

27,300 

19,500 

20,000 

14,000 

12,400

223,000

NOTF. The above values are classed as 0. The daily discharges were obtained from a hydrograph 

passing through the measurements and following the rates of rise and fall of other stream in the basin on 

which daily records were obtained.

UINTA RIVER AT FORT DUCHESNE, UTAH.

This station, which is located at the wooden highway bridge on the 

road to Vernal, one-fourth of a mile from Fort Duchesne, Utah, was 

originally established on September 4, 1899, and continued until the 

end of 1904. It was also maintained for a brief period during 1906, 

and on April 9, 1907, the station was reestablished.

The data obtained at this point show the amount of water contributed by this stream to Duchesne River, except the comparative 

small amount diverted for irrigation below, and in connection with 

the records of the stations above on the Whiterocks and the Uinta, 

they show the amount of water taken for irrigation by the numerous 

diversions both on the Uinta and Whiterocks above the station. 

The upper tributaries, above irrigation diversions, afford excellent 

opportunities for storage and power development.

The flow of the stream is affected by ice for about four months 

during the winter season, and the accuracy of the results is somewhat affected by eddies around the crib piers and by deposits of 

sediment brought down by Deep Creek during floods.

Practically the same datum was used for the gage up to and including 1906. The present chain gage, established April 9, 1907, has 

an entirely different datum. It is fastened to the bridge from which 

discharge measurements are made.
74 SURFACE WATER SUPPLY, 1907-8.

Discharge measurements of Uinta River at Fort Duchesne, Utah, in 1907 and 1908.

Date.

1907. 

April 9. .......

April 24. ......

May 13.........

May 28... ......

June 28. .......

July 10. ........

October 10. ..

October 23.....

1908. 

March 26. ......

April 1.........

April 11.......

April 23. .......

May 2.. .......

May 16.

July9.. ........

July 256. ......

August 31 6 ....

September 30 . .

October 10. ...

October 19....

Ilydrographer.

1. 1. Price..... .... ....... .... ................

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

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

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

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

I.I. Price........ ................................

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

E . H. Fletcher ....................................

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

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

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

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

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

E. H. rietcher..... ..............................

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

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

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

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

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

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

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

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

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

E. II. Fletcher.... . . ..........................

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

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

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

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

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

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

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

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

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

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

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

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

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

....do.......--..--..-.-..- - .--- ... .......,-

Width.

Feet. 

81

81

81

81

81

81

81

81

81

79

79

80

80

80

80

80

78

80

80

80

80

80

80

80

80

08

80

80

80

78

80

70

80

80

80

80

80

80

77

75

56

Area of 

section.

Sq.ft.

297

322

310

384

412

477

466

367

3<0

329

333

322

281

254

. 245

227

217

219

239

230

250

261

478

417

372

66

3^8

351

369

94

94

73

344

348

350

343

339

326

77

85

77

Gage 

height.

Feet. 

6.44

6.72

6.80

7.30

7.65

8.52

7.95

6.76

6.62

6.43

6.42

6.35

6.34

6.35

6.50

6.32

6.28

6.37

6.60

6.50

6.56

6.58

8.30

7.48

6.83

6.40

6.61

6.65

6.85

6.55

6.62

6.42

6.78

6.76

6.82

6.75

6.70

6.62

6.51

6.78

6.95

Discharge.

Sec.-ft. 

181

335

345

857

1,350

2,800

2,050

408

305

218

202

173

150

142

99

139

108

137

244

189

223

214

2,360

872

317

106

228

244

339

226

246

139

302

295

338

293

262

236

197

226

177

Ice conditions. Wading measurement.
COLORADO RIVER DRAINAGE BASIN. 75

Daily gage height, in feet, of Uinta River at Fort Duchesne, Utah, for 1907 and 1908.

[Lucile Pierce, observer.)

Day.

1907.a 

1..................

2..................

3. .................

4..................

5..................

6..................

7..................

8..................

9..................

10..................

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

12..................

13..................

14..................

15..................

16..................

17..................

18..................

19...................

20.... . . ..... ....

21...................

22...................

23...................

24...................

25...................

26. ..................

27...................

28...................

29...................

30...................

31...................

1908. b 

1...................

2...................

3...................

4...................

5...................

6...................

7...................

8...................

9...................

10...................

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

12..................

13...................

14..................

15...................

16...................

17...................

18...................

19...................

20...................

21...................

22...................

23...................

24...................

25...................

26...................

27...................

28...................

29...................

V). ..................

Jl...... .............

Mar.

6.45

6.45

6.45

6.45

6.35

6.3

6.3

6.3

6.3

6.3

6.3

6.3

6.3

6.3

6.3

6.3

6.25

Apr.

6.42

6.48

6.62

6.75

6.80

6.92

7.00

7.00

6.92

6.90

6.85

6.80

6.75

6.78

6.72

6.70

6.70

6.75

6.75

6.75

6.80

6.72

6.25

6.25

6.3

6.3

6.3

6.3

6.4

6.35

6.35

6.3

6.35

6.35

6.4

6.4

6.35

6.4

6.4

6.4

6.5

6.5

6.5

6.55

6.55

6.45

6.45

6.45

6.4

6.4

6.4

May.

6.68

6.65

6.60

6.65

6.65

6.55

6.55

6.48

ft 4A

6.52

6.72

6.72

6.68

6.60

6.75

6.88

7.12

7.40

7 60

7 80

7.98

7.88

7.72

7.50

7.30

7.20

7.15

6.4

6.5

6.7

6.8

6.7

6.65

6.7

6.8

6.85

6.8

6,7

6.7

6.7

6.6

6.5

6.55

6.6

6.7

7.0

7.1

6.9

6.8

6.75

6.7

6.7

6.85

6.9

6.8

6.7

6.8

7.0

June.

7.25

7.68

7.78

8.18

8.25

8.02

8.00

7.60

7.65

7.62

7.82

7.72

7.50

7.42

7.45

7.65

8.10

8.28

8.00

8.15

8.15

8.50

8.48

6.85

6.7

6.65

6.6

6.6

6.6

6.85

6.85

6.9

7.55

7.95

8.3

8.2

8.2

8.15

7.8

7.6

7.4

7.25

7.25

7.35

7.45

7.35

7.3

7.4

7.35

7.45

7.2

7.1

7.05

July.

8.62

8 t\Tt

8.65

8.25

8.15

8.10

7.85

7.78

7.75

7.72

7.65

7.45

7.32

7.65

7.45

7.38

7.40

7.65

7.50

7.52

7.42

7.35

7.0

7.0

6.95

6.95

7.0

6.9

6.95

6.85

6.85

6.85

6.85

6.8

6.8

6.75

6.7

6.5

6.5

6.5

6.4

6.4

6.35

6.35

6.4

6.4

6.4

6.4

6.5

6.6

6.7

6.55

Aug.

7.25

7.22

7.20

7.15

7 08

7.02

7.00

6.98

6.90

6.90

6.80

6.82

6.68

6.60

6.60

6.60

6.50

6.50

6.62

6.68

6.60

6 60

6.70

6.80

6.7

6.7

6.65

6.55

6.5

6.5

6.4

6.35

6.4

6.6

6.6

6.5

6.85

6.8

6.65

6.65

6.6

6.8

6.85

6.7

6.85

6.9

6.9

6.8

6.7

6.6

6.6

6.6

6.55

6.5

Sept.

6.65

6.65

6.70

6.55

6 EC

6.50

(\ ^9

6.45

6.45

6.45

6.40

6.40

6.40

6.40

6.40

6.45

6.45

6.45

6.4

6.4

6.35

6.3

6.85

6.6

6.6

6.55

6.55

6.6

6.6

6.5

6.5

6.5

6.45

6.5

6.4

6.4

6.4

6.6

7.1

6.85

6.7

6.7

6.7

6.7

Oct.

6.40

6.40

6.40

6.50

6.48

6.40

6.40

6.40

6.40

6.40

6.40

6.35

6.35

6.40

6.40

6.40

6.35

6.7

6.65

6.75

6.75

6.75

6.7

6.8

6.7

6.75

6.8

6.8

6.75

6.75

6.7

6.85

6.85

6.85

6.8

6.85

6.8

6.8

6.7

6.7

6.7

6.7

6.7

6.7

6.75

6.7

6.7

Nov.

6.35

6.32

6.32

6.35

6.32

6.32

6 30

6.35

6.35

6.28

6.32

6.32

6.30

6.35

6.42

6.45

6.48

6.50

6.52

6.40

6.7

6.7

6.7

6.6

6.7

6.65

6.65

6.65

6.65

6.65

6.6

6.6

6.6

6.55

6.6

6.6

6.6

6.55

6.5

6.55

6.5

6.5

6.5

6.5

6.65

6.6

Dec.

6.45

6.50

6 52

6.45

6.40

6.45

6.32

6.45

6.35

6.25

6.7

6.7

6.8

6.8

6.8

6.7

6.65

6.75

6.75

6.75

6.8

6.8

6.9

6.9

7.0

6.9

6.85

6.3

6.8

6.8

6.8

7.1

7.2

7.2

7.25

7.4

7.4

7.4

7.4

7.4

a Ice conditions November 24 to December 31, 1907. 

6 Ice conditions during December, 1908.
76 SURFACE WATER SUPPLY, 1907-8.

Eating tables for Uinta River at Fort Duchesne, Utah. 

APRIL 9 TO JUNE 30, 1907, AND NOVEMBER 1 TO 23, 1907.

Gage 

height.

Feet.

6.30

6.40

6.50

6.60

6.70

6.80

Discharge.

Sec.-ft.

135

160

200

250

310

375

Gage Disheight. charge.

Feet.

6.90

7.00

7.10

7.20

7.30

7.40

Sec.-ft.

450

535

635

750

870

995

Gage Disheight. charge.

Feet.

7.50

7.60

7.70

7.80

7.90

8.00

Sec.-ft.

1,125

1,270

1,420 .

1,575

1,735

1,900

Gage 

height.

Feet.

8.10

8.20

8.30

8.40

8.50

8.60

Discharge.

Sec.-ft.

2,075

2,260

2,455

2,660

2,870

3,080

NOTE. The above table is not applicable for ice or obstructed-channel conditions. 

! discharge measurements made during above periods and is well defined.

JULY 1 TO OCTOBER 31, 1907.

It is based on

Gage 

height.

Feet.

6.30

6.40

6.50

6.60

6.70

6.80

6.90

Discharge.

Sec.-ft.

150

190

240

300

370

450

540

!

Gage 

height.

Feet.

7.00

7.10

7.20

7.30

7.40

7.50

Discharge.

Gage 

height.

Sec.-ft. Feet.

640 1 7.60

750 l| 7. 70

875 ! 7. 80

1,015

1,165

1,325

7.90

8.00

8.10

Discharge.

Sec.-ft.

1,485

1,650

1,815

1,980

2,150

2,330

Gage 

height.

Feet.

8.20

8.30

8.40

8.50

8.60

8.70

Discharge.

Sec.-ft.

2,525

2,730

2,945

3,170

3, 395

3,620

NOTE. The above table is not applicable for obstructed-channel conditions. It is based on 5 discharge measurements made during above period and form of previous curves and is well defined.

MARCH 14 TO MAY 31, AUGUST 28 TO SEPTEMBER 15, AND NOVEMBER 19 TO 30, 1908.

Gage 

height.

Feet. 

6.20

6.30

6.40

Discharge.

Sec.-ft. 

88

118

153

Gage 

height.

Feet. 

6.50

6.60

6.70

Discharge.

Sec.-ft. 

194

246

306

Gage 

height.

Feet. 

6.80

6.90

Discharge.

Sec.-ft. 

375

450

Gage 

height.

Feet. 

7.00

7.10

Discharge.

Sec.-ft. 

535

635

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 

discharge measurements made during the above periods and is fairly well defined.

JUNE 1 TO 16, AUGUST 3 TO 27, AND SEPTEMBER 16 TO NOVEMBER 18, 1908.

Gage

height.

Feet.

6.30

6.40

6.50

6.60

6.70

6.80

Discharge.

Sec.-ft.

101

133

170

213

264

323

Gage

height.

Feet.

6.90

7.00

7.10

7.20

7.30

Discharge.

Sec.-ft.

392

472

563

665

775

Gage

height.

Feet.

7.40

7.50

7.60

7.70

7.80

Discharge.

Sec.-ft.

895

1,020

1, 155

1,300

1,455

Gage

height.

Feet.

7.90

8.00

8.10

8.20

8.30

Discharge.

Sec.-ft.

1,620

1,795

1,975

2,165

2,360

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 

discharge measurements made during the above periods and is fairly well defined.

JUNE 17 TO AUGUST 2, 1908.

Gage 

height.

Feet.

6.30

6.40

6.50

6.60

Discharge.

Sec.-ft.

76

106

143

187

Gage 

height.

Feet.

6.70

6.80

6.90

7.00

Discharge.

Sec.-ft.

238

295

360

435

Gage 

height.

Feet.

7.10

7.20

7.30

Discharge.

Sec.-ft.

515

600

695

Gage 

height.

Feet.

7.40

7.50

7.60

Discharge.

Sec.-ft.

795

900

1,010

. The above table is not applicable for obstructed-channel conditions. It is based on discharge 

measurements made during the above period and is fairly well defined.
COLORADO RIVER DRAINAGE BASIN. 77

Monthly discharge of Uinta River at Fort Duchesne, Utah, for 1907 and 1908. 

[Drainage area, 672 square miles.]

Month.

1907. 

April 9-30......................

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

November

1908. 

March 14-31 ....................

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

The period .

D 

Maximum.

535 

1,870 

3,040 

3,510 

945 

370 

240 

148

174 

220 

635 

2,360 

435 

392 

563 

358 

276

............

ischarge in second-feet.

Minimum.

168 

180 

810 

903 

240 

190 

170 

120

103 

103 

153 

213 

91 

117 

118 

238 

192

Mean.

361 

635 

1,860 

1,860 

487 

253 

188 

139 

102

134

152 

342 

857 

242 

243 

216 

293 

228 

191

Per 

square 

mile.

0.537 

.945 

2.77 

2.77 

.725 

.376 

.280 

.207 

.152

.199 

.226 

.509 

1.28 

.360 

.362 

.321 

.436 

.339 

.284

Run-off.

Depth in 

inches on 

drainage 

area.

0.44 

1.09 

3.09 

3.19 

.84 

.42 

.32 

.23 

.08

.13

.25 

.59 

1.43 

.42 

.42 

.36 

.50 

.38 

.33

Total in 

acre-feet.

15,800 

39,000 

111,000 

114,000 

29, 900 

15, 100 

11,600 

8,270 

3,030

348,000

4,940 

9,040 

21, 000 

51,000 

14,900 

14,900 

12,800 

18, 000 

13,600 

11,700

172, 000

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

B. 

D.

B. 

B. 

A. 

B. 

B. 

B. 

B. 

A. 

B. 

D.

NOTE. Probable ice conditions November 24 to December 15, 1907, discharge estimated. Ice conditions during December, 1908, discharge estimated.

WHITEROCKS RIVER NEAR WHITEROCKS, UTAH.

This station, which is located at the mouth of the canyon at the 

foot of '' Dugway'' on the road from the plateau to the river bottom, 

about 10 miles above the Indian Agency at Whiterocks, was established April 18, 1899, and continued until the end of 1904. On 

April 11, 1907, it was reestablished at practically the same place. 

(See PL V, B.} Discharge measurements are made by means of a 

car and cable.

The information contained here is valuable in connection with general studies of run-off problems and to show the amount of water 

available for storage and power above and for irrigation below.

The station is below all important tributaries of the Whiterocks. 

The first diversion for irrigation is about 3 miles below the station. 

Excellent storage possibilities and opportunities for power development exist above all irrigation diversions.

Like other streams in this region, the river is icebound for several 

months in the winter.

The same gage and datum were used from the establishment of the 

station until the end of 1904. A new chain gage and datum were 

used from April 11, 1907, to May 8, 1908, and the present chain 

gage, at a still different datum, has been used since May 9, 1908.
78 SURFACE WATER SUPPLY, 1907-8.

Measurements are made from a cable about 100 feet downstream 

from the gage.

Owing to the remoteness of this gage from any dwelling, daily 

gage observations have not been made, and daily and monthly discharges have been obtained by comparing the relatively frequent 

discharge measurements with the hydrographs of other streams in 

that section.

As the stream bed is rather rough and the current is swift, measurements at high or medium stages are not very accurate. The 

daily and monthly discharge estimates, computed by the method 

outlined above, are necessarily only approximate.

Discharge measurements of Whiterocks River near Whiterocks, Utah, in 1907 and 1908.

Date.

1907.

April 27........

May 11. ........

May 26. ........

July 2. .........

July 16. ........

July 23. ........

October 21 .....

1908. 

March 28a...... 

April 9.........

April 17........

April 24........

May 9. .........

May 18. ........

July 6......-.-.

July 26 a .......

August 22 ......

October 24.....

December 19 **

Hydrographer.

I. I. Price.... . ......................................

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

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

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

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

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

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

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

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

I I Price

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

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

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

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

B. H. Fletcher . . ...................................

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

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

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

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

R. H. Fletcher. .................................... 

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

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

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

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

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

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

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

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

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

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

R. H. Fletcher. ....................................

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

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

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

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

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

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

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

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

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

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

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

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

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

Width.

Feet. 

38

38

39

CA

55

54

75

55

50

35

35

30

31

31

32

32

31

31

28 

30

30

31

40

45

35

55

35

31

30

31

35

31

30

30

35

31

31

31

30

30

30

30

55

Area of 

section.

Sq.ft. 

51

58

54

94

134

174

131

93

70

44

42

42

34

34

31

34

32

27 

28

35

40

60

75

56

100

54

49

48

59

49

39

54

49

47

46

40

37

99

Gage 

height.

Feet. 

2.90

3.00

3.00

4.30

4.10

4 00

3.95

3.45

63.40

3.00

2.70

2.62

2.68

2.55

2.66 

2.65

3.02

dl.87

2.05

1.80

2 68

2.35

1.87

1.62

1.90

1.60

1.48

1.48

1 64

1 60

1.58

1.48

1.80

1.32

Discharge.

Sec.-ft. 

134

146

145

454

516

1,030

936

479

388

349

185

161

144

110

98

91

77

89

80

58 

61

128

348

242

630

506

246

142

173

244

120

157

139

88

94

a Wading measurement.

6 Backwater caused by fallen tree in stream below gage. 

c Ice conditions.

d New gage. Old gage was washed out about May 4, 1908, and new gage was established May 10,1908. 

The gage datum and locations are not the same.
COLOEADO EIVEE DEAINAGE BASIN. 79

Monthly discharge of Whiterocks River near WMterocks, Utah, for 1907 and 1908. 

[Drainage area, 114 square miles.]

Month.

1907. 

April 11-30. ..................................................

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

1908. 

March 15-31. ...................................................

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

Discharge in second-feet.

Mean.

204 

274 

800 

735 

203 

127 

91.6 

84.0 

80.0

77.8 

79.2 

220 

524 

208 

198 

156 

187 

95.8 

72.6

Per 

square 

mile.

1.79 

2.40 

7.02 

6.45 

1.78 

1.11 

.804 

.737 

.702

.682 

.695 

1.93 

4.60 

1.82 

1.74 

1.37 

1.64 

.840 

.637

Run-off.

Depth in 

inches on 

drainage

area.

1.33 

2.77 

7.83 

7.44 

2.05 

1.24 

.93 

.82 

.39

.36 

.78 

2.22 

5.13 

2.10 

2.01 

1.53 

1.89 

.94 

.73

Total in 

acre-feet.

8,090 

16, 800 

47,600 

45,200 

12,500 

7,560 

5,630 

5,000 

2,380

151,000

2,620 

4,710 

13,500 

31,200 

12,800 

12,200 

9,280 

11,500 

5,700 

4,460

108,000

NOTE. The above values are classed as C. 

The daily discharges were obtained from a hydrograph passing through the measurements following the 

rate of rise and fall of the other stream in the basin on which daily records were obtained.

PEICE RIVER NEAE HELPER, UTAH.

Price River rises in the Wasatch Mountains, in the southeastern 

part of Utah County, flows in a generally southeasterly direction 

and unites with Green River at a point about 14 miles above Greenriver, Utah. The main source of supply is the snow in the upper 

reaches of the basin, where elevations range from 8,000 to 9,000 feet. 

The region is extremely rough and rugged. The predominant rock 

is a loose and badly disintegrated sandstone. The soil is scanty and 

supports practically no vegetation except small groves of scrubby 

cedar and a few scattered pines. The original sparse underbrush and 

grass have been almost entirely tramped out by sheep and cattle.

The river is subject to floods in the spring and early summer, during 

which time it carries immense quantities of sediment. Gordon and 

Pleasant creeks, the principal tributaries, are both short, steep 

streams and enter from the west almost at right angles.

This gaging station, which was established February 21, 1904, is 

located on the upper side of the ford, about 3 miles south of Helper, 

Utah, and 350 feet west of the main line of the Denver and Rio 

Grande Railroad.
80 SURFACE WATER SUPPLY, 1907-8.

The datum of the original chain gage remained unchanged until 

washed out by high water April 11, 1907. It was replaced by a temporary gage June 23, 1907, and by a permanent gage July 16, 1907. 

All gage heights after June 22, 1907, are referred to a new datum 0.7 

foot above the original datum. The bed of the stream is composed 

of fine gravel and sand and shifts slightly, especially during high 

water, and new rating curves are required each year. The records 

of discharge are considered fairly good.

Discharge measurements of Price River near Helper, Utah, in 1907 and 1908.

Date.

1907.

1908. 

March 25. ......

July 10. ........

Hydrographer.

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

A. D. Williams. . ...................................

Width.

Feet. 

62

60

52

47

42

40

Area of 

section.

Sq.ft. 

203

143

115

96

71

82

Gage 

height.

Feet.

A RC\

3.30

2.95

2.78

Discharge.

Sec.-ft.

224

137

79.3

48.0

Daily gage height, in feet, of Price River near Helper, Utah, for 1907 and 1908. 

[John Tyron and Mrs. Rozina Farnsworth, observers.]

Day.

1907.1 

1. ........ ....

2. .........

3........... .

4...........

5..............

6.............. 

1. ..............

8...............

g

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19............ ..

20...............

21 ...............

22. ..............

23...............

24...............

25...............

26............... 

27...............

28...............

29...............

30...............

31...............

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

0

 3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3 

3.6

3.6

3.6

3.6

3.4

Feb.

3.3

3.3

3

Q

3.5

3.5

3.5 

3.5 

3.3

3.3

3.6

3.6

3.5

3.5

3.5

3.5

Q K

3.5

3.5

3.5

3.5

3.5

3.5

3.4

3.6

3.5

3.5 

3.5

3.5

Mar.

3.5

3.5

3.5

3.6

3.6

3.6 

3.6 

3.6

3.6

3.6

3.6

3.4

3.4

3.3

3.3

3.3

3.3

3.3

3.4

3.7

4.0

4.0

4.0

4.0

3.9

3.9 

3.9

3.9

3.8

3.7

3.8

Apr.

3.9

4.0

4.0

4.1

4.2

4.2 

4.2 

4.4

4.5

May.

.......

June.

4.6

4.3

4.3

4.2

4.2

4.1

4.1

July.

4.1

4.0

4.0

3.9

3.9

3.8 

3.8 

3.8

3.7

3.6

3.6

3.5

3.6

3.5

3.4

3.5

3.5

3.5

3.5

3.5

3.4

3.4

3.4

3.4

3.4

3.4 

3.4

3.5

3.4

3.3

Aug.

3.3

3.3

3.6

3.3

3.3

3.3 

3.3 

3.2

3.2

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.0

2.9

3.0

3.1

3.5 

3.4

3.4

3.1

3.6

3.5

Sept.

3.2

3.1

3.1

3.1

3.1

3.2 

3.1 

3.1

3.1

3.1

2 9

2.9

2.9

2.9

2.9

9 Q

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9 

2.9

2.9

2.9

2.9

Oct.

2.9

2.9

2.9

2.9

2.9

2.9 

2.9 

2.9

2.9

2.9

2 9

9 Q

2.9

2.9

2.9

9 Q

2 Q

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9 

2.9

2.9

2.9

2.9

2.9

Nov.

2.9

2.9

2.9

2.9

2.9

2.9 

2.9 

2.9

2.9

2.9

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8 2 o

2.8

2.8

2.8

2.8

2.8

2.8 

2.8

2.8

2.8

2.8

Dec.

2.8

2.8

2.8

2.8

2.8

2.8 

2.8 

2.8

2

0

2

Q

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.9

2.9

2.9

2.9

2.9 

2.9

2.8

2.8

2.8

2.8

a Gage washed out April 11, 1907. and new gage installed at different datum from previous gage June 23, 

1907.
COLORADO RIVER DRAINAGE BASIN. 81 

Daily gage height, in feet, of Price River near Helper, Utah, for 1907 and 1908 Cont'd.

Day.

1908.o 

1...... .........

9

g

4...............

6............... 

7... ............

8...............

9...............

10...............

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

12............... 

13............... 

14............... 

15...............

16...............

17............ .

18..............

19.............. 

20..............

21..............

22..............

23 ..............

24............... 

25...............

26...............

27...............

28. ............. 

29...............

30. ........... 

31.......... ....

Jan.

2.8

2.8

2.8

2.8

2.8

2.8 

2.8

2.8

2.8

2.8

2.7 

2.7 

2.7 

2. 7 

2.7

2.7

9 7

2.7

2.7 

2.7

2.7

2.7

2.7

2.7 

2.7

2.7

2.8

2.7 

2.7

2.7 

2.7

Feb.

2.7

2.7

2.7

2.7

2.7

2.7 

2.7

2.7

2.7

2.7 

2.7 

2.8 

2.9 

2.9

2.8

2 7

2.7

2.7

2.7

2.8

2.8

2.8

2.8 

2.8

2.7

2.7

2.7

2.7

Mar.

2.7

2.7

2.7

2.7

2.7

2.7 

2.7

2.7

2.7

2.7

2.7 

2.7 

2.7 

2.7

A Q

4.8

A £

3.0

3.0 

3.9

3.8

3.9

3.9

3.9 

3.0

4.2

3.0

3.9 

3.9

3.9 

3.9

Apr.

2.9

2.8

2.8

2.95

3.0

3.0 

3.9

3.0

3.0

3.0

3.9 

3.8 

3.9 

3.8 

3.7

3.7

3.8

3.8

3.8 

3.6

3.7

3.6

3.6

3.6 

3.8

3.8

3.7

3.8 

3.8

3.7

May.

3.5

3.6

3.4

3.4

3.4 

3.4

3.5

3.5

3.5

3.5 

3.6 

3.5 

3.5 

3.5

3.5

3.6

3.7

3.6 

3.6

3.5

3.5

3.5

3.5 

3.6

3.7

3.7

3.5 

3.5

3.5 

3.5

June.

3.5

3.5

3.4

3.4

3.4

3.4 

3.4

3.4

3.4

3.5

3.5 

3.4 

3.4 

3.4 

3.4

3.4

3.4

3.4

3.2 

3.2

3.1

3.0

3.1

3.1 

3.0

3.0

3.0

3.0 

3.0

3.0

July.

2.9

2.9

2.9

2.9

2.8

2.7 

2.7

2.7

2.8

2.8

2.7 

2.7 

2.7 

2.7 

2.7

2.7

2.7

2.6

2.6 

2.6

2.6

2.6

2.6

2.6 

2.6

2.6

3.0

2.75

Q K

3.1 

3.1

Aug.

2.9

2.9

2.8

2.8

2.8

2.8 

2.7

2.7

2.7

2.7

2.7 

2.8 

4.2 

3.1 

2.7

2.7

2.8

2.8

2.8 

2.7

2.7

2.7

2.7

2.7 

2.7

2.6

2.5

2.5 

2.5

2.5 

2.4

Sept.

2.8

2.5

2.5

2.5

2.4

2.4 

2.4

2.4

2.4

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.8

2.4

2.8

2.4

2.4

2.5

2.4

2.4

2.4 

2.4

2.7

2.8

2.8 

2.6

2.7

Oct.

2.7

2.7

2.7

2.8

2.9

2.8

2.8

2.7

2.7

2.7

2.7 

2.7 

2.7 

2.7 

2.6

2.6

2.7

2.6

2.6 

2.6

2.6

2.6

2.6

2.6 

2.6

2.7

2.7

2.7 

2.7

2.7 

2.7

Nov.

2.8

2.8

2.8

2.8

2.8

2.7 

2.7

2.7

2.7

2.7

2.7 

2.6 

2.6 

2.6 

2.7

2.7

2.7

2.8

2.8

2.8

2.7

2.7

2.7

2.7 2.7

2.7

2.7

2.7 

2.7

2.7

Dec.

2.7

2.7

2.7

2.7

2.7

2.7 

2.7

2.7

2.7

2.6,

2.6 

2.6 

2.7 

2.7

2.7

2.7

2.7

2.7

2.7 

2.7

2.6

fl 6

2.6

2.6 

2.6

2.6

2.6

2.6 

2.6

2.5 

2.5

a Slight ice conditions during January, February, and December, 1908.

Rating tables for Price River near Helper, Utah.

JANUARY 1, 1905, TO APRIL 11, 1907.

Gage

height.

Feet.

3.30

3.40

3.50

3.60

Discharge.

Sec.-ft.

18

30

44

60

Gage i Disheight.

Feet.

3.70

3.80

3.90

4.00

charge.

Sec.-ft.

78

98

122

150

Gage

height.

Feet.

4.10

4.20

4.30

4.40

Discharge.

Sec.-ft.

182

219

260

305

Gage

height.

Feet.

4.50

4.60

4.70

Discharge.

Sec.-ft.

354

404

455

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 

discharge measurements made during 1904 to 1906. It is well defined.

JUNE 23 TO DECEMBER 31. 1907.

Gage

height.

Feet.

2.80

2.90

3.00

3.10

Discharge.

Sec.-ft.

42

54

70

90

3.20 114

Gage

height.

Feet.

3.30

3.40

3.50

3.60

Dis- 1 Gage

charge.

Sec.-ft.

140

170

204

242

3.70 ' 282

height.

Feet.

3.80

3.90

4.00

4.10

4.20

Discharge.

Sec.-ft.

324

370

418

468

520

Gage

height.

Feet.

4.30

4.40

4.50

4.60

Discharge.

Sec.-ft.

572

626

680

736

NOTE.- The above table is not applicable for ice or obstructed-channel conditions. It is based on 3 discharge measurements made during 1907 and the form of the average rating curve for this station. It is 

fairly well defined.

24439 IBS 249 10 6
82 SURFACE WATER SUPPLY, 1907-8.

Rating tables for Price River near Helper, Utah Continued.

1908.

Gage 

height.

Feet. 

2.40

2.50

2.60

2.70

2.80

2.90

3.00

Discharge.

Sec.-ft.

7

14

23

35

50

68

89

Gage 

height.

Feet. 

3.10

3.20

3.30

3.40

3.50

3.60

3.70

Discharge.

Sec. -ft. 

113

140

170

204

242

283

326

Gage 

height.

Feet. 

3.80

3.90

4.00

4.10

4.20

4.30

4.40

Discharge.

Sec.-ft. 

371

418

467

518

570

625

680

Gage 

height.

Feet. 

4.50

4.60

4.70

4.80

Discharge.

Sec.-ft. 

735

790

850

910

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 2 

discharge measurements made during 1908 and the form of earlier curves, and is fairly well defined.

Monthly discharge of Price Rircr near Helper, Utah, for 1907 and 1908.

Month.

1907.

April 1-11 ...........................................

June 23-30. ..........................................

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

The period .................................. .

1908.

1lT

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

Discharge in second-feet.

Maximum.

60 

60 

150 

455 

736 

468 

680 

114 

54 

54 

54

50 

68 

910 

418 

326 

242 

242 

570 

50 

68 

50 

35

910

Minimum.

18 

18 

18 

122

468 

140 

54 

54 

54 

42 

42

35 

35 

35 

50 

204 

89 

23 

7

23 

23 

14

7

Mean.

23.8 

40. 6 

72.0 

244 

554 

242 

141 

67.6 

54.0 

46.0 

44.3

40.3 

40.7 

248 

268 

256 

169 

50.9 

56.8 

17.5 

33.6 

37.8 

29.2

104

Run-off 

(total in 

acre-feet).

1,460 

2,250 

4,430 

5,320 

8,790 

14, 900 

8,670 

4,020 

3,320 

2,740 

2,720

58, 600

2,480 

2,340 

15, 200 

15,900 

15,700 

10, 100 

3,130 

3,490 

1,040 

2,070 

2,250 

1,800

75, 500

Accuracy.

D. 

C. 

C. 

B. 

B. 

C. 

A. 

C. 

C. 

C. 

C.

C. 

C. 

B. 

B. 

B. 

B. 

A. 

B. 

D. 

C. 

C. 

C.

NOTE. No corrections made in discharge on account of ice conditions during 8. Effect due to ice

probably small.

GRAND RIVER DRAINAGE BASIN.

DESCRIPTION.

Grand River and its tributaries drain an area comprising approximately 26,000 square miles, of which 22,290 are in Colorado and the 

rest in eastern Utah. On the east and southeast the basin is limited 

by the high ranges of the Continental Divide, which separate it from 

the basins of Platte and Arkansas rivers; on the north by the White 

River and Book Cliffs plateaus; on the west by the canyon district 

of Green River.
GRAND EIVER DRAINAGE BASIN. 83

Rising among the high peaks of the Rocky Mountains in the northcentral portion of Colorado, the Grand flows in a southwesterly direction to its junction with Green River, traversing approximately 350 

miles.

The tributaries include Fraser, Blue, Eagle, Williams Fork, Roaring 

Fork, Gunnison, and Dolores rivers, all of which enter from the south.

In most respects the Grand is a typical mountain stream, flowing 

throughout its course in a succession of deep canyons, with precipitous 

and ofttimes perpendicular walls, varying in height up to 3,000 feet 

above the water's edge, alternating with long, narrow, fertile valleys. 

The headwater region, comprising approximately 50 per cent of the 

basin, is extremely rugged, elevations ranging from 7,000 to 14,000 

feet. Gradients are steep, stream channels are numerous, and tributaries are rapid, the fall varying from 20 to 150 feet. The intermediate or middle portion of the basin consists largely of broken and 

scarred plateaus of sedimentary origin. The lower drainage basin, 

that portion immediately east and west of the Colorado state line, is a 

dry, broken, much eroded region.

The rocks of the basin range from the granites and masses of igneous 

origin on the crest of the Continental Divide to the younger and less 

resistant sedimentaries of the plateau region. The soils of the upper 

basin, though shallow, generally contain considerable organic matter; 

those of the intermediate basin are largely decomposed and disintegrated sedimentary rocks; in the lower basin the soils consist of adobe 

clays and sandy loams, which grade imperceptibly from one to the 

other. The scant vegetation of the lower basin renders soil erosion 

large.

The precipitation ranges from 5 to 10 inches in the lower basin, 10 

to 20 inches in the intermediate region, and 20 to 30 inches in the headwater region. By far the greater part of this is in the form.of snow.

Notwithstanding heavy inroads, the forestation of the mountainous 

part of the basin, except in a few localities, is good the equal of any 

in Colorado. The forest covering consists of spruce, quaking asp, 

cedar, and pinon. The intermediate basin is fairly well forested 

with quaking asp, cedar, and pinon. The forestation of the lower 

basin is poor, consisting of scattered pine, cedar, and pinon. The 

prevailing vegetation is sage brush, chico, and cactus pads.

The greater part of the timbered area in the Grand River basin 

above the Gunnison is included in the Arapahoe and Holy Cross National Forest. In these reserves in the Grand drainage basin there 

are about 1,400 square miles of merchantable timber land, 900 square 

miles of woodland, and about 800 square miles of burned area.

Extensive meadow lands are comprised within the upper basin. In 

the middle basin, or from the lower end of Gore Canyon to about Rifle, 

there are in contemplation about half a dozen small projects, which
84 SURFACE WATER SUPPLY, 1907-8.

will irrigate 30,000 to 35,000 acres. In the lower basin the Reclamation Service has under way the Grand Valley project, to cover an irrigable area of 60,000 to 70,000 acres. Under other schemes from 

40,000 to 50,000 acres more will be irrigated. The Uncompahgre 

Valley project, which diverts water from the Gunnison, has finished 

structures capable of irrigating about 50,000 acres. The completed 

project will irrigate about 150,000 acres.

Natural storage within the basin is limited to a few high mountain 

lakes, of which Grand Lake is the largest. There are, however, reservoir sites along the Grand and its tributaries, which if utilized would 

make possible a development of 1,000,000 horsepower. The Kremmling reservoir site is by far the best in the drainage. It is located 

near the upper end of Gore Canyon, and with a 230-foot dam, water 

to the extent of about 2,200,000 acre-feet could be impounded. A 

standard-gage railroad now runs through this site.

Until recently the splendid power resources of this drainage basin 

have remained practically untouched. The estimated power which 

can be developed, including Dolores and Gunnison rivers, is as follows:

Minimum horsepower...................................... 540, 000

Minimum horsepower (6 high months)....................... 1, 000, 000

Horsepower from storage (6 months' period) ................. 1, 600, 000

Of this amount less than 40,000 horsepower has so far been developed. With its numerous large tributaries, rising at high elevations, this stream affords more favorable opportunities for power 

development than any in Colorado.

Hot sulphur springs are located along the Grand River at two 

points at Sulphur Springs, Colo., and at Glenwood Springs, Colo., 

and in both localities they increase the temperature of the river 

water. Their combined flow is probably less than 20 second-feet.

The years of maximum run-off in this drainage basin were 1897 and 

1907; of the minimum run-off since records were begun 1902.

Fraser, Eagle, Williams, and Roaring forks and Gunnison River 

are described in connection with gaging stations now maintained. 

The importance of Dolores River entitles it to the following brief 

description, although measurements have been discontinued.

The Dolores rises in the La Plata and San Miguel mountains, whose 

highest peak, Mount Wilson, attains an elevation of over 14,000 feet. 

Its course is southwesterly for about 50 miles, when it turns and 

flows almost due northerly for nearly 100 miles, when it again {urns 

to the west and enters Grand River about 15 miles west of the Colorado-Utah line. For the greater part of its course the river flows 

through deep canyons, and comparatively little irrigation is practiced 

along the stream itself. In the vicinity of Dolores, however, the 

valley broadens, and for about 40 miles has a width of one-half mile
GRAND RIVER DRAINAGE BASIN. 85

to a mile. A considerable part of this area is cultivated. In. the 

Paradox Valley, also, considerable land is cultivated, chiefly from 

small tributaries running into the main stream. By far the greater 

part of Dolores River water is used for irrigation in the San Juan 

drainage, being diverted by means of a tunnel and a great cut into the 

Montezuma Valley.

San Miguel River, the most important tributary of the Dolores, 

rises in San Miguel County, Colo., and drains an area immediately 

west of the headwaters of the Uncompahgre River, and enters the 

Dolores about 12 miles east of the Colorado-Utah line at an elevation of about 5,000 feet. The stream and its tributaries run for the 

most part in a northeasterly direction. Considerable land along the 

San Miguel has been irrigated and plans for increased development 

have been made. Probably 600 square miles of the Dolores River 

basin are covered with merchantable timber and as much more is 

woodland. The total area of this basin is about 4,500 square miles.

The mean annual run-off of Dolores River above the mouth of 

the San Miguel is nearly 400,000 acre-feet, while the San Miguel 

furnishes at least half that amount.

The basin contains several small storage reservoir sites, a few of 

which have been developed, both for power and irrigation. Theoretically, by utilizing storage it would be possible to develop from 

75,000 to 100,000 horsepower in the Dolores drainage. The river 

has an average fall of over 20 feet per mile throughout almost its 

whole course, while a great stretch of the San Miguel averages over 

50 feet to the mile. Several water-power plants are in operation 

along the upper San Miguel and its tributaries, the development 

aggregating nearly 10,000 horsepower, of which about 7,500 horsepower is developed at the Ames, the Howards Fork, and the Illium 

plants of the Telluride Power Company. One plant on Bridal Veil 

Creek is utilizing a head of 2,000 feet to develop 1,200 horsepower.

The following gaging stations have been maintained in the Grand 

River drainage basin:

North Fork of Grand River near Grand Lake Colo., 1904-1908.

Grand River near Granby, Colo., 1908.

Grand River at Sulphur Springs, Colo., 1904-1908.

Grand River near Kremmling, Colo., 1904-1908.

Grand River near Wolcott, Colo., 1906-1907.

Grand River at Glenwood Springs, Colo., 1899-1908.

Grand River near Palisades, Colo., 1902-1908.

Grand River near Grand Junction, Colo., 1895-1900.

North Inlet to Grand Lake at Grand Lake, Colo., 1905-1908.

Grand Lake Outlet at Grand Lake, Colo., 1904-1908.

Fraser River at Granby (Coulter), Colo., 1904-1908.

Williams Fork near Sulphur Springs, Colo., 1904-1908.

Troublesome River at Troublesome, Colo., 1904-1905.

Muddy River at Kremmling, Colo., 1904-1905.
86 SUEFACE WATER SUPPLY, 1907-8.

Blue River near Kremmling, Colo., 1904-1908.

Tenmile Creek near Kokomo, Colo., 1904.

Tenmile Creek near Uneva Lake, Colo., 1903.

Eagle River near Eagle, Colo., 1905-1906.

Eagle River at Gypsum, Colo., 1907-1908.

Roaring Fork near Emma, Colo., 1908.

Roaring Fork at Glen wood Springs, Colo., 1906-1908.

Frying Pan River at Basalt, Colo., 1908.

Crystal River near Carbondale (Sewell), Colo., 1908.

Gunnison River near lola, Colo., 1900-1903.

Gunnison River near Cimarron, Colo., 1903-1905.

Gunnison River at River Portal (east portal of Gunnison tunnel), Colo.,

1905-1908.

Gunnison River near Cory, Colo., 1903-1905. 

Gunnison River at Whitewater, Colo., 1897, 1902-1906. 

Gunnison River near Grand Junction, Colo., 1895, 1897-1899. 

Taylor River near Almont, Colo., 1905. 

East River at Almont, Colo., 1905. 

Cimarron Creek at Cimarron, Colo., 1903-1905. 

North Fork of Gunnison River near Hotchkiss, Colo., 1903-1906. 

Uncompahgre River near Colona, Colo., 1903-1906. 

Uncompahgre River at Fort Crawford, Colo., 1895-99, 1908. 

Uncompahgre River at Montrose, Colo., 1903-1908. 

Uncompahgre River near Delta, Colo., 1903-1908. 

Dolores River near Dolores, Colo., 1895-1903. 

San Miguel River near Fall Creek, Colo., 1895-1899.

NORTH FORK OF GRAND RIVER NEAR GRAND LAKE, COLO.

This station, which was established July 29, 1904, to obtain data 

for use in connection with power development and for general run-off 

studies, is located at the highway bridge on the road between Grand 

Lake and Granby, and is about 3 miles southwest of Grand Lake postoffice, Colo. The nearest railroad is the Denver, Northwestern and 

Pacific, at Granby, Colo., distant about 12 miles.

It is located about 2 miles above Grand Lake outlet, which is the 

most important tributary of the North Fork.

One large ditch above the station diverts water into the headwaters of the Cache la Poudre, in the South Platte drainage basin.

Winter records at this station are more satisfactory than at the 

other stations on the headwaters of the Grand, as near-by springs 

tend to keep the stream at the gaging station more or less open.

The location and datum of the staff gage, which is at the bridge, 

have remained unchanged during the maintenance of the station.

Fairly good results have been obtained at this station. Because 

of the sluggish condition of the stream at low stages, measurements 

taken at such times are not entirely satisfactory. '''
GRAND RIVER DRAINAGE BASIN. 87

Discharge measurements of North Fork of Grand Hirer near Grand Lake, Colo., in

1907 and 1908.

Date.

- 

1907.

July 20. ........

October 2

1908. 

January 29&....

July 27.........

October 2^

Hydrographer.

C. L. Chat field .....................................

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

J. B . Slewart. . ..................................... 

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

C. L. Chatfield .....................................

.....do.......-..--..-....-........---..-..-.........

C. L. Chatfteld ..................................... 

..... do...... -..............--..........-..--..---.- -

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

..... do............. -..-................--..-...--.. -

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

.....do....... -.......-........-...-..-----.-------.-

Width.

Feet.

60

55

40

39

38

38 

38

54

54

50

40 

40

44

44

38

32

Area of 

section.

Sq. ft. 

171

115

82

05

42

49 

49

116

120

101

81 

79

79

76

53

53

Gage 

height.

Feet. 

5.40

4.70

4.10

3.73

3.27

3.30 

3.29

4. CO

4.68

4,45

3.98 

4.00

3.03

3.50

3.40

4.10

Discharge.

Sec.-ft.

700

344

130

01

14

10 

18.6

263

273

219

92 

98

36

20

23

15

a Measurement affected by ice conditions.

b Stream open at bridge but frozen over 20 feet below.

c Wading measurement.

d Measurement through ice.

Daily gage height, in feet, of North Fork of Grand Hirer near Grand Lake, Colo., for 1907

and 1908.

[Harry W. Carr, observer.]

Day.

1907. a

1...............

2.. .............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

20. ..............

27...............

28...............

29...............

30...............

31...............

Jan.

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.40

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3. 35

3.35

Feb.

3.35

3.35

3.35

3.35

3.38

3.32

3.30

3.30

 3.30

3.30

3.30

3.30

3.30

3.30

3.40

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.38

3.35

Mar.

3.35

3.35

3.35

3.35

3.35

3.35

3. 35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.42

3.48

3.52

3.58

3.75

3.75

3.72

3.75

3.68

3.70

3.62

3.08

Apr.

3.58

3. 62

3. 65

3.68

3.70

3.70

3.62

3.60

3.70

3.85

4.10

4.05

4.25

4. 32

4.45

4.40

4.25

4. 15

3.95

3.90

3.82

3.88

3.95

3.95

3.90

3.98

4.08

4.10

4.10

3.92

May.

3.80

3.85

3.78

3.90

3.90

3.90

3.92

3.92

4.00

4.08

4.22

4.50

4.40

4.15

4.12

4.10

4.22

4.48

4.55

4.82

5.02

5.10

5.05

5.05

4.90

4.08

4.62

4.58

4. 55

4.52

4.50

June.

4.48

4.80

4.80

4.90

5.20

5.25

5.10

5.08

5.08

4.95

4.98

5.20

5.45

5.70

5.75

5.80

5.78

5.80

5.90

5.85

5.50

5.45

5.75

5.85

5.85

5.85

5.85

5.90

5.95

6.00

July.

6.00

0.00

5.95

0.00

6.00

5.90

5.95

5.80

5.78

5.02

5.35

5.25

5.15

5.20

5.02

4.90

4.82

4. 75

4.60

4.58

4.58

4. ()0

4.62

4. tiO

4.58

4.65

4.90

4.80

4. 65

4.55

4.50

Aug.

4.42

4.40

4.35

4. 55

4.48

4.42

4.32

4.22

4.20

4.15

4.15

4.15

4.10

4.08

4.00

3.95

3.90

3.95

4.00

3.98

3.90

3.85

3.80

3.80

3.90

3.90

3.88

3.82

3.80

3.80

3.75

Sept.

3.78

3.80

3.75

3.72

3.70

3.70

3.70

3.70

3.70

3.68

3.62

3.60

3. 60

3.92

3.78

3.72

3.70

3.65

3.65

3.02

3.60

3.60

3.55

3.55

3.52

3.68

3.72

3. 65

3.55

3.65

Oct.

3.70

3.65

3.65

3.70

3.70

3.70

3.80

3.80

3.72

3.70

3.70

3.05

3.65

3.60

3. CO

3.00

3.60

3.60

3. 60

3.60

3.58

3.55

3.55

3.55

3.55

3.55

3.55

3.55

3.55

3.55

3.55

Nov.

3.55

3.60

3.55

3.58

3.55

3.52

3.50

3.50

3.50

3.52

3.52

3.40

3.52

3.35

3.38

3.30

3.30

3.30

3.30

3.28

3.25

3.22

3.30

3.30

3.25

3.30

3.30

3.30

3.30

3.30

Dec.

3.25

3.30

3.35

3.20

3.20

3.20

3.20

3.20

3.20

3.28

3.30

3.28

3.30

3.30

3.30

3.25

3.25

3.38

3.25

3.25

3 26

3.25

3.25

3.25

3.25

3.25

3.25

3.28

3.30

3.30

3.30

a Ice conditions probably prevailed during the greater part of January, February, and March and from 

about November 12 to December 31,1907. In some cases morning readings were affected by ice and afternoon readings were Ubed.
88 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of North Fork of Grand River near Grand Lake, Colo., for 1901

and 1908 Continued.

Day.

1908. a

2

3............... 

4...............

6. .............. 

7...............

8............... 

9...............

10...............

la2 :::::::::::::::

14............... 

15...............

1 ................

17...............

19...............

21...............

 M. ..............

23...............

24...............

27...............

28............... ''9

30............... 

31...............

Jan.

3.3

3.3 

3.3 

3.3

3.3 

3.35

3.3 

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 

3.3

3.3

q o

3.3

3.4

3.3

3.3 

3.3

Feb.

3.4

3.3 

3.3 

3.3

3.35 

3.3

3.3 

3.35

3.3

3.3

3.3 

3.35

3.35 

3.3

3.3

3.35

3.35

3.3 

3.35

3.35

3.4 

3.35

3.3

q q

3.3

3.5

3.3

Mar.

3.3

3.6 

3.3 

3.3

3.4

3.6

3.55 

3.5

3.6

3.45

3.5 

3.3

3.3 

3.3

3.3

3.3

3.3

3.35 

3.55

3.5

3.4 

3.35

3.4

q qc

3.35

3.3

3.5

3.3 

3.3

Apr.

3.35

3.4 

3.4 

3.4

3.5 

3.45

3.55 

3.6

3.7

4.0

4.05 

4.1

4.15 

4.2

4.15

4.1

4.1

4.2 

4.2

4.2

4.3 

4.25

4.1

3.9

4.0

3.9

3.9

May.

3.9

4.0

4.1 

4.0

4.05 

4.1

4.3

4.2

4.2

4.1

4.1

4.05

4.0 

4.0

4.15

4.2

4.3

4.5 

4.6

4.4

4.3 

4.3

4.35

4.35

4.35

4.3

4.3

4.3 

4.3

June.

4.4

4.35

4.4 

4.65 

4.7

4.7 

4.55

4.5 

4.5

4.65

4.7

4.95

4,7

4.85 

5.0

5.0

5.0

4.85

4.6

4.8

4.95

5.0 

5.0

4.85

4.85

4.85

4.8

4.7

4.6

4.55

July.

4.5

4.5

4.5 

4.5

4.6

4.5 

4.4

4.4 

4.4

4.35

4.4

4.35 

4.3

4.3 

4.5

4.3

4.3

4.2

4.15 

4.1

4.1

4.05 

4.05

4.05

4.0

4.0

4.0

4.1 

4.35

Aug.

4.15

4.0 

3.95 

3.95

3.95

4.0

3.9 

3.85

3.9

4.4

4.4 

4.25

4.1 

4.0

4.0

3.95

3.9

4.1 

4.1

4.1

4.1 

4.0

4.0

3 9

3.85

3.8

3.8

3.8

3.8 

3.7

Sept.

3.7

3.7

3.7 

3.7 

3.7

3.7 

3.65

3.65 

3.65

3.65

3.65

3.65 

3.75

3.8 

3.7

3.7

3.65

3.6

3.6 

3.55

3.55

3.55 

3.55

3.55

q KC

3.55

3.6

3.6

Oct.

3.6

3.6

3.6 

3.6 

3.6

3.6 

3.6

3.6 

3.55

3.55

3.55

3. 55 

3.55

3.55 

3.55

3.55

3.55

3.55

3.55 

3.5

3.5

3.45 

3.45

3.4

3 4

3.4

q a

3.5

3.45 

3.4

Nov.

3.4

3.45

3.45 

3.5 

3.4

3.4 

3.4

3.4 

3.4

3.4

3.45

3.45 

3.95

. 4.05 

3.9

3,7

3.75

3.75

3.75 

3.75

3.8

3.5 

3.4

3.7

3.8

3.5

3.5

3.4

Dec.

3.6

3.4 

3.4

3.4

3.4

3.4

3.4-

"3." 4"

3.35

3.4

4.1

" ~3.~ 35

3

qc

3.35

" "3." 35

a Ice conditions probably prevailed during the greater part of January, February, and March and from 

about November 13 to December 31, 1908.

Rating tables for North Fork of Grand River near Grand Lake, Colo. 

JANUARY 1, 1907, TO APRIL 10, 1908.

Gage

height.

Feet.

3.20

3.30

3.40

3.50

3.60

3.70

3.80

3.90

Discharge.

Sec.-ft.

10

16

24

33

43

55

69

85

Gage

height.

Feet.

4.00

4.10

4.20

4.30

4.40

4.50

4.60

Dis- Gage

charge.

Sec.-ft.

105

130

160

194

230

267

306

height.

Feet.

4.70

4.80

4.90

5.00

5.10

5.20

5.30

Discharge.

Sec.-ft.

347

390

434

479

528

582

640

Gage

height.

Feet,

5,40

5.30

5.60

5.70

5.80

5.90

6.00

Discharge.

Sec.-ft.

702

767

834

902

970

1,040

1,110

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 5 

discharge measurements made during 1907 and the form of previous curves. It is well defined.

APRIL 11 TO DECEMBER 31, 1908.

Gage

height.

Feet.

3.40

3.50

3.60

3.70

3.80

Discharge.

Sec.-ft.

12

20

32

45

59

Gage

height.

Feet.

3.90

4.00

4.10

4.20

Discharge.

Sec.-ft.

77

95

116

140

Gage

height.

Feet.

4.30

4.40

4.50

4.60

Discharge.

Sec.-ft.

165

195

230

266

Gage

height.

Feet.

4.70

4.80

4.90

5.00

Discharge.

Sec.-ft.

304

343

383

425

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1908 and the form of the 1907 curve and is well defined.
GRAND RIVER DRAINAGE BASIN. 89

Monthly discharge of North Fork of Grand Hirer near Grand Lake, Colo., for 1907 and

1908.

Month.

1907. a

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

1908. b

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

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

The vear

Discharge in second-feet.

Maximum. , Minimum.

24 

24 

62 

248 

528 

1,110 

1,110 

286 

89 

69 

43 

22

1,110

24 

33 

43 

165 

266 

425 

266 

195 

59 

32

20 

16 

20 

41 

66 

260 

267 

62 

35 

38 

13 

10

10

16 

16 

16 

20

77 

179 

95 

45 

26 

12

Mean.

22.8 

19.1 

31.1 

104 

235 

764 

603 

132 

52.3 

46. 6 

24.4 

13.9

171

16.8 

18.9 

24.3 

87.7 

145 

319 

162 

96.3 

36.5 

24.6 

16.4 

15.2

80.2

Run-off 

(total in 

acre-feet).

1,400 

1,060 

1,910 

6,190 

14, 400 

45,500 

37, 100 

8,120 

3,110 

2,870 

1,450 

855

124,000

1,030 

1,090 

1,490 

5,220 

8,920 

19,000 

9,960 

5,920 

2,170 

1,510 

976 

935

58, 200

Accuracy.

D. 

D. 

C. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

D. 

D.

D. 

D. 

D. 

A. 

A. 

A. 

A. 

A. 

A. 

B. 

D. 

D.

a The open channel rating was applied throughout 1907. The error in second-feet due to ice conditions 

is relatively small, but the percentage error may be great.

b The open channel rating was applied during January to March, 1908. See above footnote 1907. Ice 

conditions November 13 to December 31, 1908, and discharge estimated.

GRAND RIVER NEAR GRANBY, COLO.

This station was established June 10, 1908, by the Central Colorado 

Power Company, to obtain data for determining the flow of the South 

Fork in connection with storage and power development. It was taken 

over as a United States Geological Survey station on July 1, 1908. 

The gage is located at a highway bridge, which crosses the river about 

4 miles from Granby on the road to Grand Lake. Measurements 

are made by means of a cable equipment located 300 feet downstream 

from the bridge.

It is about 4 miles below the junction of North and South forks, 

about the same distance above the mouth of Fraser River, and is 

above the mouth of Willow Creek. The drainage area is about 500 

square miles.

No important diversions are made on the South Fork or on the 

main stream above the station. This stream affords excellent 

storage possibilities. Several filings for power development have 

been made above this station, but additional opportunities for filing 

no doubt exist. A small power plant is located on a tributary of the 

South Fork.
90 SURFACE WATER SUPPLY, 1907-8.

Thick ice covers the river for about four months each year, and 

anchor ice also occurs.

The location and datum of the gage have remained unchanged 

during the maintenance of the station.

Discharge measurements of Grand River near Granby, Colo., in 1908.

Date.

Tnlv 2

July 26........

October 21 o. ...

Hydrographer.

C. L. Chatfield .....................................

C. L. Chatfield .....................................

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

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

C. L. Chatfield. . ...................................

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

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

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

Width.

Feet. 

110

102

95

100

Qfi

85

85

60

35

Area of 

section.

Sq.ft. 

312

225

146

172

113

94

90

42

38

Gage 

height.

Feet. 

3.90

3.00

2.30

2.50

1.75

1.50

1.50

1.47

1.55

2.10

Discharge.

Sec.-ft. 

1,380

732

304

419

84

82

72

51

a Wading measurement at cable section.

b Wading measurement below bridge. River frozen at cable.

Daily gage height, in feet, of Grand River near Granby, Colo., for 1908. 

[J. P. Switzer, observer.]

Day.

2....

3....

4....

5....

6....

7. ...

8....

10....

11.... 

12.... 

13.... 

14.... 

15....

June.

3.4

3.5

3.85 

3.7 

3.65 

3.8

July.

3.05

3.05

3.05

3.1

3.1

3.1

3.05 

3.05

3.0

3.0

2.95 

2.95 

2.9 

2.9 

2.95

Aug.

2.8

2.65

2.6

2.5

2.4

2.3

2.3 

2.25

2.1

2.1

2.5 

2.9

2.8 

2.7 

2.6

Sept.

1.9

1.9

1.85

1.75

1.7

1.7

1.7 

1.7

1.7

1.7

1.7 

1.7 

1.7 

1.8 

1.8

Oct.

1.6

1.6

1.6

1.6

1.6

1.6

1.6 

1.6

1.6

1.6

1.6 

1.55 

1.5 

1.5 

1.5

Nov.

1.5

1.45

1.45

1.45

1.45

1.45

1.45 

1.45

1.45

1.45

1.4 

1.35 

1.4 

1.4 

1.5

Dec.

1.7

1.65

1.8

1.8

1.8

1.8

1.6

1.8

1.75

1.8

1.9 

1.9 

1.95 

1.85 

2.15

Day.

16....

17....

18....

19....

20....

21....

22.... 

23....

24....

25....

26.... 

27.... 

28.... 

29.... 

30.... 

31....

June.

3.85

3.9

3.8

3.4

3.45

3.7

3.95 

3.9

3.75

3.75

3.65 

3.7 

3.5 

3.35 

3.3

July.

2.85

2.8

2.65

2.55

2.5

2.45

2.4 

2.4

2.4

2.3

2.3 

2.3 

2.3 

2.3 

2.55 

2.8

Aug.

2.5

2.4

2.4

2.4

2.4

2.5

2.6 

2.6

2.6

2.45

2.3 

2.2 

2.2 

2.1 

2.0 

1.95

Sept.

1.8

1.8

1.65

1.6

1.6

1.6

1.6 

1.6

1.55

1.5

1.55 

1.6 

1.6 

1.6 

1.6

Oct.

1.5

1.5

1.5

1.5

1.5

1.5

1.5 

1.5

1.5

1.5

1.5 

1.5 

1.45 

1.45 

1.5 

1.5

Nov.

1.45

1.4

1.4

1.3

1.3

1.4

1.4

1.4

1.35

1.55

1.55 

1.3 

1.55 

1.6 

1.7

Dec.

9 1

2 2

2.15

2.15

2.15

2.15

2.2 

2.25

2.3

2.3

2.2 

2.2 

2.25 

2.3 

2.2 

2.25

NOTE. Ice conditions November 21 to December 31.

Rating table for Grand River near Granby, Colo., for 1908.

Gage 

height.

Feet.

1.30

1.40

1.50

1.60

1.70

1.80

1.90

Discharge.

Sec.-ft.

54

70

88

108

130

153

178

Gage 

height.

Feet.

2.00

2.10

2.20

2.30

2.40

2.50

2.60

Discharge.

Sec.-ft.

207

240

276

316

359

406

458

Gage 

height.

Feet.

2.70

2.80

2.90

3.00

3.10

3.20

3.30

Discharge.

Sec.-ft.

515

575

640

710

780

850

920

Gage 

height.

Feet.

3.40

3.50

3.60

3.70

3.80

3.90

4.00

Discharge.

Sec.-ft.

995

1,070

1,150

1,230

1,310

1,390

1,475

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on eight 

discharge measurements made during 1908 and is well defined.
GRAND RTVER DRAINAGE BASIN. 

Monthly discharge of Grand Hirer near Granby, Colo.,for 1908.

91

Discha 

Month. 

, Maximum.

June 10-30.......... .... . ......... 1,430

July. .................... . ................ 780

August. . ............... . . ............ 640

October.................. ... ................. 108

December 70

rge in seconc 

Minimum.

920 

316 

192

88 

79 

54 

50

-feet. 

Mean.

1,200 

559 

380 

127 

94.8 

71.1 

55.6

The ijeriod

,

Run-off 

(total in 

acre-feet).

50,000 

34,400 

23,400 

7,560 

5,830 

4,230 

3.420

129.000

Accuracy.

A. 

A. 

A. 

B. 

B. 

C. 

C.

NOTE. Ice conditions and discharge estimated November 21 to December 31.

GEAND RIVER AT SULPHUR SPRINGS, COLO.

This station was originally established July 27, 1904, at the highway 

bridge one-eighth mile below Sulphur Springs. On April 17, 1906, 

it was moved to the new highway bridge, about 1,000 feet above the 

old location, and a standard chain gage was installed. This gage has 

no determined relation to the old gage. The data obtained are used to 

check up the results at other stations on Grand River and its tributaries, and also to determine the flow of some of the smaller tributaries.

The Grand is joined by Fraser River about 10 miles above Sulphur 

Springs, and by Williams Fork a few miles below. The drainage 

area at the station is about 950 square miles.

A number of small private ditches divert water for meadow irrigation along the principal tributaries above the station and along the 

Grand. A number of large diversion ditches are located in the lower 

drainage basin. Filings for power development are numerous from 

source to mouth, but it is probable that a large amount of this water 

would still be available for appropriation for irrigation.

The river at the station freezes across for about four months each 

year, the ice sometimes reaching a depth of 2 feet. No artificial 

control is used.

On account of unfavorable measuring conditions during the winter 

months at the regular section, temporary gages have been maintained in a canyon one-quarter mile below, where the river is open 

and where measurements can be made by wading. A temporary 

gage was used from January 25 to March 17, 1908, and another, 200 

feet nearer the regular station, from November 25 to December 20, 

1908. From April 1 to 16, 1908, an old staff gage was read by the 

observer instead of the chain gage. Gage heights for this period 

have been adjusted to refer to the chain-gage datum. Beginning 

December 22, 1908, readings were resumed at the chain gage by 

gaging through a hole cut in the ice.
92 SUEFACE WATER SUPPLY, 1907-8.

The accuracy of the results obtained at this station is affected to a 

certain extent by a bend in the river above the station, the bridge 

pier, and by ice conditions.

Discharge measurements of Grand River at Sulphur Springs, Colo., in 1907 and 1908.

Date.

1907.

April 26........

May 28. ........

July 18. ........

September 30. . .

1908.

June 13. ........

Tnlv 4

July 25. ........

July 29.. .......

Hydrographer.

C. L. Chatfleld.... . .................................

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

C. L. Chatfleld. . .............. ....................

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

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

J. B. Stewart. ......................................

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

C. L. Chatfleld .....................................

C. L. Chatfleld .....................................

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

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

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

C. L. Chatfleld.... . .................................

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

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

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

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

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

Width.

Feet. 

112

100

131

289

132

111

107

45

44

51

50

60

65

104

112

' 121

114

106

106

111

98

98

56

29

Area of 

section.

Sq.ft.

397 770

395

231

145

65

49

47

63

298

447

288

190

179

126

119

120

66

a Wading measurement in canyon. Frozen at regular section.

6 Temporal gage one-fourth mile below regular section. Gage washed out during the measurement on 

March 17, 1908.

c Frozen at regular section. Wading 000 feet above bridge. Current full of slush ice.

d Temporary gage in canyon, about 200 feet above gage used January to March, 1908. Chain gageatregular 

section read 3.20 feet.

Daily gage height, in feet, of Grand River at Sulphur Springs, Colo., for 1907 and 1908.

[E. L. Chatfleld, jr., observer.]

Day.

1907.& 

1...............

2... ....... ..

3...............

4.... ........ 

5.... ..........

6..............

7... ...........

8...... . ......

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

12... .... ......

15...............

16...............

17...............

18. ..............

19

20. .............. 

21...............

22. ..............

23...............

24. ..............

25...............

Jan. Feb. Mar.

.......

2.68

Apr.

2.00

2.12

2.45

2.38 

2.18

2.20

2.00

2.12

2.37

2.77

3.07

3.17

3.07

3.42

3.52

3.12

3.07

3.82

3.27 

2.37

2.42

2.47

2.42

2.37

May.

2.62

2.48

2.48

2.58 

2.52

2.55

2.62

2.68

2.62

2.75

3.00

3.40

3.20

3.12

3.10

3.18

3.20

3.50

4.45 

4.50

4.85

4.75

5.22

4.75

June.

3.65

4.05

4.95

4.75 

5.30

5.75

5.55

5.45

5.38

5.05

5.05

5.15

5.85

5.95

6.00

6.22

6.00

6.05

6.28

6.05 

5.85

5.90

5.75

5.55

6.05

July.

6.05

6.02

5.95

5.92 

5.82

5.70

5.62

5.55

5.45

5.42

5.38

4.85

4.75

5.20

4.75

4.32

4.20

4.00

3.85

3.90 

3.78

3.82

3.72

3.72

3.78

Aug.

3.48

3.35

3.18

3.32 

3.35

3.32

3.18

3.10

2.58

2.48

2.38

2.42

2.60

2.58

2.50

2.45

2.42

2.42

2.40

2.35 

2.38

2.42

2.22

2.18

2.18

Sept

2.18

2.12

2.00

1.95 

2.00

1.92

1.90

1.98

1.92

1.88

1.82

1.78

1.75

1.78

1.82

1.78

1.80

1.78

1.75

1.68 

1.65

1.68

1.62

1.65

1.60

Oct.

1.98

2.00

2.05

1.98 

2.05

2.08

2.00

1.90

1.82

1.88

1.82

1.88

1.82

1.82

1.85

1.92

1.92

1.98

2.08 

2.12

2.02

2.10

2.18

2.28

Nov.

1.68

1.70

1.78

1.80 

1.82

1.80

1.80

1.72

1.68

1.80

1.80

1.82

.......

Dec.

a Ice conditions prevailed from about January 1 to March 24, and November 13 to December 31, 1907.
GRAND EIVEE DRAINAGE BASIN. 93

Daily gage height, in feet, of Grand River at Sulphur Springs, Colo., for 1907 and

1908 Continued.

Day.

1907. 

2(1. .............. 

27...............

28...............

29... ... .......

30...............

1908.o

2............... 

3...............

5.. ............. 

6... ............

9............... 

10...............

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

12...............

13............... 

14...............

15............... 

16. ..............

18........ .......

19...............

20. .............. 

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28. .............. 

29. ..............

31...............

Jan.

.......

1.15

1.1

Feb.

"l.05

1.0 

1.6

i.05

1.0

1.0

.95

1.0

1.0

1.0

1.05

1.0

.95

.95

1.05 

1.0

Mar.

2. 55 

2.25

2.02 

1.85

1.80

1.0 

1.05

1.1

"i.'os"

"i.i"

-----

1.3

1.7

1.8

1 9

2.0

2.1

"2~25~

2.4

Apr.

2.44 

2.58

2.82

2.68

2.4

2. 45 

2.3 

2.2

2.25

2.25 

2.2 

2.25

2.25 

2.3

2.3 

2.35

2.35 

2. 4

2.4 

2.45

2.45

2.5

2.5 

 2.6

2.6

2.55

2.55

2.6

2.5

2.5

2.4 

2.25 

2.35

May.

4.55 

4.05

4.05

3.95

3.80

2.4

2.35 

2.45 

2.5

2.4

2.3 

2.3

2.75

2.9 

2.85

2.65 

2.6

2.55 

2.55

2.5 

2.5

3.0

3.2

3.5 

3.3

3.1

3.05

3.15

3.25

3.25

3.1

3.1 

3.1

2.95

3.05

June.

5. 05 

5. 95

5.85 

5.75

5.95

3.25 

3.5 

3.95

4.0

4.0 

3.95 

3.8

3.6 

3.95

4.35 

4.8

4.5 

4.4

4.6 

4.75

4.5

4.0

3.8 

4.25

4.5

4.55

4.4

4.3

4.05 

3.7

July.

3.88 

4.25

4.08

3.80

3.4 

3.3 

3.3

3.3

3.25 

3 2 

3^15

3.1 

3.05

3.0 

3.0

3.0 

3.05

3.1 

3.05

2

Q

2.65

2.65

2.55 

2.5

2.5

2.5

2.4

2.35

2.3

2.25 

2 2

2.95

Aug.

2.12 

2.18

2.18

2.20

2 9

2.7 

2.6 

2.5

2.4

2.3 

2.3 

2.25

2.2 

2.2

2.3 

2.9

2.8 

2.7

2.6 

2.55

2.4

2.5 

2.5

2.5

2.6

2.5

2.4

o q

2.25

2.2 

2.1

2.05

Sept.

1.82 

1.75

1.85

1.92

1.95 

1.9 

1.8

1.8

1.8 

1.8 

1.75

1.85

1.8 

1.8

1.9 

1.9

1.9

1.8

1.75

1.7

1.6

1.65

1.7 

1.7 

1.75

Oct.

2.08 

1.72

1.58

1.70

1.75

1. 7 

1.7 

1.75

1.75

1.7

1.7

1.7 

1.7

1.6 

1.6

1. 7 

1.6

1.6

1.65

1.6

1.6

1.7

1.6

1.6 

1.6 

1.6

1.6

Nov.

1.6

1.6 

1.55

1.55

1.5 

1.5 

1.5

1.5 

1.5

1.55 

1.5

1.4

1.7

1.75

1.7

2.4

2 Or

o q

2.15 

2.1

o 1 c

Dec.

2.0

2.0 

2.1 

2.1

2.15

2.1 

2.2 

2.3

2.4 

2.4

2.35 

2.4

2.3

2.25 

2.2

2 2

2.2

2.2

co

2.25

3.3

2.9

3

r\

2.8

2.8 

2.7 

9 ^

2.6

a Temporary gages in canyon used January 26-March 16 and November 25-December 20, 1908. Gage 

heights estimated March 19-31. Ice conditions prevailed at the regular gage from about January 1 to the 

middle of March and from about November 15 to Dec. 31, 1908.

b Ice jam at regular station.

Rating tables for Grand River at Sulphur Springs, Colo.

APRIL 17, 1906, TO JUNE 15, 1907.

Gage Disheight. charge.

Feet.

1.80

1.90

2.00

2.10

2.20

2.30

2.40

2.50

2.60

2.70

Sec.-ft.

280

325

375

430

490

550

615

680

750

825

Gage 

height.

Feet. 

2.80

2.90

3.00

3. 10

3.20

3.30

3. 40

3.50

3.60

3.70

Discharge.

Sec.-ft. 

905

990

1,080

1,175

1,275

1,375

Gage 

height.

Feet. 

3.80

3.90

4.00

4.10

4.20

4.30

1,480 1 4.40

1,590 4.50

1,710

1,830

4.60

4.70

Discharge.

Sec.-ft. 

1,960

2,090

2,220

2,360

2,500

2,650

2,800

2,950

3,100

3,250

Gage 

height.

Feet. 

4.80

4.90

5.00

5.20

5.40

5.60

5.80

6.00

6.20

Scc.-ft. 

3, 400 

3,550 

3,700 

4,000 

4,310 

4,630 

4,950 

5,270 

5,590

NOTE. The above table is not applicable for ice or obstrucled-channel conditions. It is based on nine 

discharge measurements made during 1906-7.

JUNE 16 TO AUGUST 31, 1907. 

[The indirect method for shifting channels used.]

Discharge.
94 SURFACE WATER SUPPLY, 1907-8.

Rating tables for Grand River at Sulphur Springs, Colo. Continued.

SEPTEMBER 1 TO NOVEMBER 12, 1907, AND MARCH 18 TO NOVEMBER 14, 1908.

Gage 

height.

Feet.

1.40

1.50

1.60

1.70

1.80

1.90

2.00

2.10

2.20

2.30

Discharge.

Sec.-ft.

92

119

150

185

226

271

320

370

421

473

Gage 

height.

Feet.

2.40

2.50

2.00

2.70

2.80

2.90

3.00

3.10

3.20

3.30

Discharge.

Sec.-ft.

528

586

648

712

778

846

916

987

1,060

1,134

Gage 

height.

Feet.

3 40

Discharge.

Sec.-ft.

1,211

3.50 1,290

3.60 1,373

3.70 1,459

3.80 1,548

3.90 1,642

4.00

4.10

4.20

4.30

Gage 

height.

Feet.

4.40

4.50

4.60

4.70

4.80

4.90

1,740 5.00

1,841 i

1,944

2,050

Discharge.

Sec.-ft.

2,159

2,270

2,385

2,505

2,631

2,763

2,900

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on thirteen 

discharge measurements made during period, July, 1907 to November, 1908, and is well defined.

JANUARY 26 TO MARCH 17, 1908.

Gage 

height.

Feet. 

0.95

1.00

Discharge.

Sec.-ft.

72

Gage 

height.

Feet. 

1.10

1 9n

Discharge. ,

i

Sec.-ft. '

Gage 

height.

Feet. 

1 30

1.40

Discharge.

Sec.-ft. 

147

180

Gage 

height.

Feet.

Discharge.

Sec.-ft.

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on four 

discharge measurements made during winter 1907-8 and is applicable to gage heights at temporary gage 

in canyon. It is fairly well defined.

NOVEMBER 25 TO DECEMBER 22, 1908.

Gage 

height.

Feet. 

2.00

Discharge.

Sec.-ft. 

99

2. 10 102

Gage 

height.

Feet. 

2.20

Discharge.

Sec.-ft. 

106

Gage 

height.

Feet. 

2.30

Discharge.

Sec.-ft. 

112

Gage 

height.

Feet. 

2.40

Discharge.

Sec.-ft. 

120

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on two 

discharge measurements made during winter 1908-9, and is applicable to gage heights at temporary gage in 

canyon. It is not well defined.

Daily discharge, in second-feet, of Grand River at Sulphur Springs, Colo., June 16 to

August 31, 1907.

Day.

1......

2......

3......

9......

June. July.

4, 670

4,630

4.530

4,300

3,990

3.890

3.750

Aug.

1,340

1,240

1,100

1,220

1,240

1.220

1,120

1,040

690

630

Day.

11......

12......

13......

15......

18......

19......

20. .....

June.

5,120

5, 430

July.

3. 620,

2,900

2,740

3,320

2,740

2,170

2,030

1 830

1,660

Aug. ' Day.

570 21......

590 22......

700 1 23......

- 630 25......

592 , 26......

573 ' 27......

560 29. .....

1 31......

June.

4,040

4,660

4,450

4,170

4,770

4.770

4,630

4,290

July.

1,600

1,630

1,550

1,550

1,600

1,700

2,080

1,710

1,520

Aug.

543

564

452

425

425

391

420

418

413

420

NOTE. These discharges were obtained by the Indirect method for shifting channels.
GRAND RIVEE DRAINAGE BASIN. 95

Monthly discharge of Grand River at Sulphur Springs, Colo., for 1907 and 1908.

Month.

1907.

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

1908.

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

The year

Discharge in second-feet.

Maximum.

810 

1,990 

4,030 

5,430 

4,670 

1,340 

411 

443 

235

93 

528 

648 

1,290 

2,630 

1,210 

846 

320 

206 

150

Minimum.

280 

375 

667 

1,770 

1,520 

391 

150 

134 

178

63 

72 

421 

473 

1,060 

421 

345 

150 

134 

92

Mean.

476 

863 

1,710 

4,390 

2,750 

701 

246 

288 

213

99.2 

73^5 

198 

529 

805 

1,880 

819 

553 

220 

166 

125 

109

465

Run-off, 

(total in 

acre-feet).

6,610 

51,400 

105,000 

261,000 

169, 000 

43, 100 

14, 600 

17, 700 

5,070

Accuracy.

B. 

B. 

A. 

B. 

B. 

B. 

A. 

A. 

A.

673,000 |

6,100 

4,230 

12, 200 

31,500 

49, 500 

112, 000 

50, 400 

34, 000 

13, 100 

10, 200 

7,440 

6,700

337, 000

C. 

B. 

B. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

C. 

C.

NOTE.- Discharge estimated for periods, January 1-25 

ice conditions. See also footnotes to gage heights.

November 15-24, and December 23-31, 1908:

GRAND RIVER NEAR KREMMLING, COLO.

This station was established July 24, 1904. It is located at the 

upper end of Gore Canyon, about 3 miles southwest of Kremmling, 

Colo., near the Kremmling reservoir dam site, which is the largest 

in Colorado.

The records obtained at this station show the water available for 

storage and power development and are used also to determine 

probable run-off of some of the smaller tributaries between Kremmling 

and Sulphur Springs.

Blue River, the largest tributary above this station, empties into 

the Grand about 2 miles above. Other important tributaries between Kremmling and Sulphur Springs are Williams Fork, Troublesome, and Muddy rivers.

A number of private ditches divert water for meadow irrigation 

from both the main stream and its tributaries between Sulphur 

Springs and this station.

The river is frozen completely across at the station for about 

four months each year. During this period the records are affected 

by the surface ice and also by anchor ice forming in the riffle just 

below the gage.

On October 18, 1906, the present slope gage was established on 

the opposite side of the river from the old chain gage. The zero of
96 SURFACE WATER SUPPLY, 1907-8.

the slope gage is about 0. 70 foot above the zero of the old gage. 

Measurements of discharge are made from a cable a few feet downstream from the gage.

Scouring during high stages and silting during low stages affect 

the accuracy of results. Data obtained are good at high and medium 

stages, but at low stages are not so accurate.

Discharge measurements of Grand Hirer near Kremmling, Colo., in 1907 and 1908.

Date.

1907.

April 25........

May 27. ........

July 16. ........

1908.

May 23. ........

July 6. .........

July 23. ........

October 24.. ...

Ilydrographer.

C. L. Chatfleld .....................................

C. L. Chatfleld .....................................

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

..... do. . .\ ..........................................

J. B. Stewart. ......................................

J. B. Stewart. ......................................

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

C. L. Chatfleld .....................................

J. B. Stewart. ......................................

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

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

C. 1. Chatfleld .....................................

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

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

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

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

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

Width.

Feet. 

97

122

138

140

124

106

101

104

98

100

120

127

142

127

92

115

105

105

100

100

Area of 

section.

Sq.ft. 

173

992

1,850

1,840

436

205

146

142

818

1,240

2,040

1,450

1,110

1,000

254

250

167

197

Gage 

height.

Feet. 

n S9

4.75

9.85

9.95

4.35

2.53

.99

.68

.96

1.15

C (\A

7.02

11.10

6.98

1 60

Of)

1.40

Discharge.

Sec.-ft.

9,500

4,870

1,580

816

410

304

292

268

OAA

1 740

2

0 Or»

6,230

2 74O

1,280

472

OOO

283

a Measurement through ice. & River filled with ice floats. c Floating ice. d Ice conditions.

Daily gage height, in feet, of Grand River near Kremmling, Colo., for 1907 and 1908.

[H. A. Howe, observer.]

Day.

1907.1 

1............... 

2............... 

3. ..............

4............... 

5. ..............

6...............

7.... ...........

8...............

Q

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

12...............

13...............

15...............

16...... ....... 

17...............

18............... 

19...............

21...............

22. .............. 

23...............

24...............

25.-..--..-......

Jan.

0.89 

1.16 

1.90

Feb.

0.74

.82

.86

.92 

1.19

1.12

1.18

Mar.

0.78 

.88 

.94

1.02 

1.16

1.26

1.30

1.30

1.14

1.00

1.24 

.99

90

.86 

1.11

3.00 

4.38 

5.79

5.85

6. 50 

4.76

3.96

4.36

Apr.

2.28 

2.64 

3.71

3.70 

3.81

3.46

2.96

2.69 

9 qg

4.01

5.92

6.20

5.92 

6.32

6.96

7.28 

6.84

6.19 

5.68

4.65

4.70 

4.65

4.69

4.75

May.

5.14 

4.49 

4.30

4.37 

4.26

4.49

4.92

4.88

4 99

5.78

7.04

7.60 

7.02

6.54

6.34 

6.81

7.45 

8.42

11.26

12.30 

12. 80

12.62

12.18

June.

8.77 

9.26 

11.13

11.49 

11.90

13. 05

13.38

13. 38

11.70

12.40

13.47

14.28

14.92

15. 35

15.49

15.28 

15. 47 

15. 38

14.62

13.95 

13. 85

14. 25

14.45

July.

14.78 

15.30 

14.50

14.10 

13.95

13.78

13.38

12.95

12.52

11.15

10.78 

11.78

11.15

9.95 

9.40

9.00 

8.65 

8.35

8.65

8.62 

8.10

8.10

8.40

Aug.

6.98 

6.78 

6.55

6.70 

6.95

6.25

5.75

5.50

C OK

5.18

4.72

4.60 

4.45

4.68

4.70 

4.45

4.15 

4.30 

4.25

4.35

4.05 

4.00

3.50

Sept.

3.50 

3.25 

3.15

2.90

2.92

2.80

2.78

2.50

2.38

2.20

2. 12 

2.30

2.55

2.65 

2.35

2.20 

2.08 

1 98

1.90

1.85 

1.80

1.78

Oct.

2.62 

2. 05 

2.58

2.45

2.65

2.95

3.40

9 no

2.58

2.42

2.35

2.30

2.20 

2.10

2.00 

1.95 

1 90

1.80

1.80 

1.78

1.80

Nov.

1.80 

1.70

1.50 

1.42

1.32

1.38

1.50

1 4S

.75

.45 

.25

.95

1.30 

1.30

1.40 

1.18

1.00

.92

.75

.68

.80

Dec.

0.45 

.35 

.30

.20 

.15

.25

.45

.60 

60

.60

<ys

.58

.48 

.52

V)

.38 

.35

.28 

-.02 

+ .20

.25

.40 

.30

.55

.85

a Ice conditions probably prevailed during January, February, and the first part of March, 1907; 

December 24-31,1907.
GRAND RIVER DRAINAGE BASIN. 97

Daily gage height, in feet, of Grand River near Kremmling, Oolo.,for 1907 and 1908 

Continued.

Day.

1907. 

26...............

27...............

28...............

29...............

30...............

31...............

1908.0 

1. ..............

2...............

3...............

4. ..............

5...............

6...............

7...............

8...............

9...............

10...............

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

12............

13...............

14......... ....

15.......... ...

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27. ..............

28...............

29...............

30...............

31...............

Jan.

1.3

1.2

1.15

1.15

1.65

1.85

2.2

2.4

2.15

1.9

1.85

1.6

1.55

1.25

1.05

1.05

.95

9

.75

.6

.7

.7

.7

.7

9

.8

.8

.7

.75

.8

.7

Feb.

1.11

1.06

97

0.8

.7

.8

.8

.85

.85

9

9

.9

.9

.9

.95

.9

.9

1.0

1.2

1.1

1.05

1.05

1.0

1.1

1.15

1.0

.95

1.1

1.05

1.1

1.1

1.0

Mar.

4.82

3.96

3.36

2.62

2.45

2.18

1.1

1.1

1.0

1.1

1.0

.85

.6

.8

.7

.8

.8

.95

1.55

1.75

1.9

2.65

2.15

2.15

2.1

1 <*

1.4

1.45

1.65

1 9

2.0

2.3

2.1

1.9

1.45

1.1

Apr.

4.46

4.62

4.93

5.25

5.18

1.1

1.8

1.7

1.8

2.2

2.3

2.3

2.7

3.1

3.5

3.85

4.15

4.8

<; 91;

5.1

4

QC

5.1

5.4

5.6

5.8

6.1

5.6

5.0

4.4

4.1

4.1

3.7

3.55

May.

11.06

9.52

9.52

9.75

9.31

3.6

4.0

A Q

5.5

4.85

5.0

5.25

5.6

6.3

6.3

5.7

5.5

5.4

5.1

4 9

5.15

6.1

6.6

7.2

8.25

7 Q

7.25

7.1

7.2

7 9

7.65

7.3

7.2

6.65

6.7

6.8

June.

14.82

14.72

14.42

14.25

14.28

7 4<i

7.7

7 9

9 0

9.3

9.2

8.9

8.55

8.55

9.45

10.45

11.2

10.9

10.65

10 9

11.15

11.35

9.6

8.8

9.2

10.05

10.2

9 9

9.7

9.3

9.3

9.25

8.2

7.9

July.

8.88

9.70

8.80

8.05

7.45

7.5

7.05

7.0

6.95

7.0

6.95

6.6

6.55

6.35

6.05

6.1

6.05

5.95

5.95

6.1

6.0

5.65

z, 0^

4.85

4.5

4.25

4.15

4.2

4.2

4.15

3.8

3.7

3.6

3.6

3.6

4.65

Aug.

3.78

3.82

3.70

3.55

3.55

3.70

5.1

5.95

4 UK

4.2

3.7

3.6

3.6

3.45

3.2

2.95

3.35

5.1

4.95

4.85

4.3

4.0

3.65

3.75

3.9

3.95

4 <*

4.25

4.35

4.2

3.8

3.55

3.45

3.25

3.0

2.75

2.55

Sept.

2.10

2.70

2.55

2.25

2.32

2.35

2.2

2.1

2.0

1.95

1.85

1.8

1.8

1.75

1.95

2.15

2.0

2.05

2.3

2.2

2.15

1.85

1.7

1.6

1.5

1 4<i

1.4

1.3

1.3

1.45

1.5

1.6

1.6

1.6

1.65

Oct.

1 80

1.75

1.70

1.75

1.70

1.60

1.6

1.6

1.6

1.6

1.55

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.3

1.25

1.2

1.25

1.35

1.4

1.6

1.45

1.25

1.3

1.15

1.3

1.5

1.45

1.1

1.1

1.35

1.35

1.4

Nov.

1 00

.70

.62

.58

.55

1 /t

1.3

1.05

l.l

1.15

1.15

1.15

1.15

1.15

1.1

1.25

1.45

1.15

.7

.85

.9

.8

g

1.05

1.05

1.0

.95

1.05

.95

.55

.8

.7

.45

.7

.95

Dec.

1.10

80

.75

.80

.95

1.05

.65

.4

.55

.7

1.15

1.0

1.0

.7

.55

.65

.75

.65

.65

.9

1.1

1.2

.7

.85

.6

1.1

1.05

.95

1.2

1.85

2.5

1.9

2.7

2.15

1.65

1.55

1.3

a Ice conditions January 1 to March 20, and December 5 to 31,1908. 

Rating table for Grand River near Kremmling, Colo.,for 1907 and 1908.

Gage 

height.

Feet.

0.00

.10

.20

.30

.40

.50

.60

.70

.80

.90

1.00

1.10

1.20

1.30

Discharge.

Sec.-ft.

170

190

210

230

250

270

290

315

340

365

390

415

440

465

Gage 

height.

Feet.

1.40

1.50

1.60

1.70

1.80

1.90

2.00

2.10

2.20

2.30

2.40

2.50

2.60

2.70

Discharge.

Sec.-ft.

490

515

540

565

590

620

650

680

710

740

770

800

830

860

Gage 

height.

Feet.

2.80

2.90

3.00

3.20

3.40

3.60

3.80

4.00

4.20

4.40

4.60

4.80

5.00

5.20

Discharge.

Sec.-ft.

890

925

960

1,030

1,100

1,170

1,240

1,320

1,400

1,480

1,570

1,660

1,750

1,840

Gage 

height.

Feet.

5.40

5.60

5.80

6.00

7.00

8.00

9.00

10.00

11.00

12.00

13.00

14.00

15.00

15.50

Discharge.

Sec.-ft.

1,940

2,040

2,140

2,250

2,825

3,475

4,220

5,095

6,120

7,255

8,450

9,700

11,000

11,675

NOTE.- The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1906-8 and is well defined, except at stages below about 1.5 feet.

24439 IBB 249 10 7
'98 SURFACE WATER SUPPLY, 1907-8.

Monthly discharge of Grand River near Kremmling, Colo., for 1907 and 1908. 

[Drainage area, 2,380 square miles.]

Month.

1907.

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

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

1908,

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

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

Discharge in second-feet.

Maximum.

438 

2,520 

3,010 

8.210 

11,700 

11,400 

2,810 

1,140 

1,100 

590

740 

2,300 

3,650 

6,510 

3,150 

2,220 

755 

540 

502

0, 510

Minimum.

325 

335 

734

1,420 

4,040 

3,120 

1,140 

585 

540 

220

415 

1,170 

3,120 

1,170 

815 

465 

415 

260

Mean.

384 

874 

1,690 

3,680 

9,170 

6,220 

1,700 

784 

719 

407 

259

304 

306 

419 

1.290 

2,390 

4,720 

2,010 

1,310 

597 

488 

390 

303

Per

square 

mile.

.161 

.367 

.710 

1.55 

3.85 

2.61 

.714 

.329 

.302 

.171 

.109

.128 

.129 

.176 

.542 

1.00 

1.98 

.845 

.550 

.251 

.205 

.164 

.127

1,210 ' .508

Run-off.

Depth in 

inches on 

drainage 

area.

0.07 

.42 

.79 

1.79 

4.30 

3.01 

.82 

.37 

.35 

.19 

.13

.15 

.14 

.20 

.60 

1.15 

2.21 

.97 

.63 

.28 

.24 

.18 

.15

6.90

Total in 

acre-feet.

8,380 

53,700 

101,000 

226,000 

546,000 

382,000 

105,000 

46, 700 

44.200 

24, 200 

15,900

1,550.000

18,700 

17,600 

25,800 

76,800 

147,000 

281,000 

124,000 

80,600 

35,500 

30,000 

23,200 

18, 600

879,000

Accuracy.

B. 

A. 

A. 

A. 

A. 

A. 

B. 

A. 

A. 

B. 

D.

D. 

D. 

C. 

A. 

A. 

A. 

A. 

A. 

A. 

B. 

B. 

D.

NOTE. Ice conditions and discharge estimated for following periods, December 24-31,1907; January 1 to 

March 20,1908; and December 24-31, 1908.

Open-water rating applied to gage heights in February and March 1907, although there was probably 

ice in the river. The monthly means are probably not materially affected.

GRAND RIVER NEAR WOLCOTT, COLO.

This station, which was established May 27, 1906, and discontinued May 20, 1908, was located at the state bridge on the old stage 

road from Wolcott to Yampa. The Denver, Northwestern and 

Pacific Railroad now passes this bridge, the nearest station being 

McCoy.

The records at this station were used to check run-off data obtained 

at the station at Kremmling.

Piney River enters the Grand a few miles above and Rock Creek 

a few miles below the station. No important diversions are made 

between this and the Kremmling station. Between these two points 

the river has a fall of about 350 feet. Much of the power afforded 

by this fall has been filed upon.

Ice conditions are not as severe as at the Kremmling station.

The chain gage was located on the bridge and the datum remained 

the same during the maintenance of the station.
GRAND EIVEE DRAINAGE BASIN. 99

Results during high stages are good. Low-water measurements 

were made chiefly during the winter months and are not entirely 

satisfactory.

Discharge measurements of Grand River near Wolcott, Colo., in 1907 and 1908.

Date.

1907.

1908.

March 1&. ......

Hydrographer.

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

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

J. B. Stewart. ......................................

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

J. B. Stewart. ......................................

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

C. L. Chatfleld. ....................................

Width.

Feet. 

189

190

147

136

83

78

73

68

199

139

Area of 

section.

Sq.ft. 

1,260

1,190

378

268

216

252

199

989

Gage 

height.

Feet. 

8.15

5.48

2.30

1.57

cl.50

1.38

6.85

4.80

Discharge.

Sec.-ft. 

10,800

9 760

4,240

1,620

763

294

381

334

6,560

3,070

a Slush ice. 

6 Ice along edges.

t Reading at end of measurement, probably unaffected by ice. Mean gage height for measurement is 

doubtful.

NOTE. Measurements for 1906 are given in Water-Supply Paper 211, p. Jl.

Daily gage height, infeet, of Grand River near Wolcott, Colo., for 1907 and 1908. 

[Edwin Crane, observer.]

Day.

1907. a 

1...............

2.... . . ...

3...............

4............... 

5...............

6...............

7...............

8...............

9...............

10...............

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

12............. . 

13............. .

14...............

15. ..............

16............... 

17............... 

18. ..............

19...............

20. ..............

21...............

22............... 

23............. . 

24. ..............

25...............

26...............

27............... 

28. ..............

29...............

30...............

31...............

Jan.

1.8 

1.85

1.8

1.75 

1 75

1.7

1.7

1 7*;

1.75

1.7

1.75

1.75 

1.7

1.7

1.7

1.75 

1.7 

1.7

1.65

1.65

1.55 

1.5 

1.55

1.5

1.5

1.5 

1.5

1.5

1.5

1.5

Feb.

1.6 

1.6

1.55

1.55 

1.6

1.6

1.6

1.6

1.6

1.6 

1.65

1.65

1.6

1.6 

1.65 

1.7

1.75

1.75

1.8

1.8 

1.85 

1.8

1.85

1.9

1.9 

1.9

Mar.

1.9 

1.9

1.9

1.9 

1 9

1 9

2.0

2.0

2.15

2.2

2.4 

2.4

2.5

2.7

2.8 

2.95 

3.05

3.4

3.6

3.8

4.05 

4.25 

4.45

64.7

64.55

4.35 

3.75

3.3

2.85

2.85

Apr.

2.85 

2.85

2.9

2.9 

2.9

2.9

3 n

3.15

3.6

3.75 

3 9

3.9

4.15 

4.5 

4.95

4.1

3.7

3.6 

3.6 

3.65

3.7

3.8

3.9 

3.9

4.0

4.05

May.

4.0 

3.95

4.0

4.15 

4.25

4.4

4.4

4.7

4.75

4.95

5.05

5.3

5.4

5.6 

5.55 

5.6

5.7

6.7

7.25

7.55 

7.85

8.15

7.3

6.7 

6.4

6.4

6.3

6.15

June.

6.0 

6.85

7.6

7.65 

7.6

7.8

7.9

8.15

7.9

7 3*;

7.65

8.5

8.8

8.8 

8.8 

8.75

8.55

8.35 

8.2 

8.3

8.35

8.6

8.5 

8.4

8.3

8.45

July.

8.5 

8.6

8.4

8.3 

8.25

8.15

7.95

7.5

7.55

6.95 

6.65

7.1

7.05

6.3 

6.05 

5.9

5.65

5.6

5.6 

5.45 

5.35

5.4

5.8

6.0 

6.3

5.75

5.4

4.95

Aug.

4.85 

4.75

4.5

4.7 

4.75

4.5

4.25

3.85

3.75

3.65 

3.35

3.2

3.55

3.5 

3.45 

3.45

3.4

3.5

3.4

3.35 

3.25

3.0 

3.0

3.05

3.0

3.0

Sept.

3.0 

2.95

2.9

2.85 

2.8

2.7

2.6

2.65

2.65

2.5

2.5 

2.5

2.4

2.55

2.55 

2.45 

2.4

2.3

2.25

2.2

2.2 

2.2 

2.2

2.2

2.55 

2.6

2.45

2.5

Oct.

2.6 

2.65

2.65

2.6 

2.55

2.5

2.85

q 1

2.95

2.9

2.6 

2.5

2.4

2.4

2.35 

2.2 

2.2

2.2

2.2

2.2

2.05 

2.15 

2 05

2.1

2.1

2.1 

2.1

2.0

2.0

2.05

Nov.

2.0 

2.0

2.0

1.9 

1 9

1 9

1.9

1 9

1 Q

1 9

1 Q

1.9

1 Q

1.9

1.8

1.75 

1.7 

1.7

1.6

1.6

1.5

1.5 

1.5 

1.5

1 dz

1.4

1.4 

1.35

1.3

1 ^

Dec.

1.25 

1.2

1.2

1.15

1.1

1.1

1 9

1.2

1.2

1.2

1.4 

1.55

1.65

1.8

2.0 

2.25 

2.5

2

0

2.9

2.9 

2.55 

1 9

1.65

1.4

1.4

1.4

1.4

1.4

1.4

a Ice conditions December 12 to 31,1907. 6 Rise caused by dam going out at Monarch.
100 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Grand River near Wolcott, Colo.,for 1907 and 1908 Cont'd.

Day.

1908.0 

1. ...........

2............

3............

4............

5............

6............

7. ...........

8............

9............

10............

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

12............

13............

14............

15............

Jan.

1.6

1.7

1.7

1.5

1.6

2.0

2.2

2.8

2.4

2.8

2.9

1.4

1.6

2.1

1.4

Feb.

2.1

1.8

1.8

1.5

1.6

1.5

1.5

1.5

1.4

1.4

1.5

1.5

1.5

1.4

1.4

Mar.

1.4

1.4

1.4

1.5

1.5

1.6

1.6

1.6

1.4

1.5

1.5

1.5

1.7

1 9

Apr.

1.8

1.7

1.7

1.8

2.0

2.2

2.4

2.45

2.4

2.6

2.8

3.1

3.4

3.4

3.7

May.

3.15

3.7

4.1

3.9

3.95

4.15

4.3

4.45

4.35

4.0

3.85

Day.

1908.0 

16............

17............

18............

19............

20............

21............

22............

23............

24............

25............

26............

27............

28............

29............

30

31............

Jan.

2.2

2.1

1.6

1.5

1.9

1.4

1.6

1.4

1.4

1.5

1.5

1.7

1.6

1.7

1 9

2.1

Feb.

1.6

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.5

1.4

1.4

1.4

1.4

1.4

Mar.

2.0

2.2

2.3

2.3

2.3

2.3

2.3

2.3

2.1

2.1

2.1

2.2

1.9

1.8

1.7

1.8

Apr.

3.95

3.8

3.9

3.9

4.1

4.2

4.25

4.4

4.1

3.75

3.5

3.3

3.35

3.25

May.

4.0

4.05

4.5

4.8

5.5

a Partial ice conditions January 1 to February 5,1908. 

Rating table for Grand River near Wolcott, Colo.,for 1906 to 1908.

Gage 

height.

Feet.

1.00

1.10

1.20

1.30

1.40

1.50

1.60

1.70

1.80

1.90

2.00

2.10

Discharge.

Sec.-ft.

215

237

260

285

313

343

375

410

450

495

555

608

Gage 

height.

Feet.

2.20

2.30

2.40

2.50

2.60

2.70

2.80

2.90

3.00

3.10

3.20

3.30

Discharge.

Sec.-ft.

669

733

800

870

943

1,021

1,102

1,186

1,273

1,359

1,446

1,534

Gage 

height.

Feet.

3.40

3.50

3.60

3.70

3.80

3.90

4.00

4.20

4.40

4.60

4.80

5.00

Discharge.

Sec.-ft.

1,623

1,713

1,807

1,905

2,007

2,112

2,220

2,442

2,672

2,913

3,173

3,450

Gage 

height.

Feet.

5.20

5.40

5.60

5.80

6.00

6.20

6.40

6.60

6.80

7.00

8.00

9.00

Discharge.

Sec.-ft.

3, 737

4,036

4,348

4,673

5,010

5,366

5,744

6,138

6,546

6,970

9,610

12,800

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1906-1908 and is well defined, except below gage height 2.0 feet. This 

table supersedes all earlier rating tables.

Monthly discharge of Grand River near Wolcott, Colo., for 1906, 1907, and 1908.

Month.

1906.o 

May 27-31. . .........................................

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

Discharge in second-feet.

Maximum.

7.790 

12,300 

5,370 

1,900 

2,010 

1,450 

800 

608

Minimum.

6,340 

4,840 

1,860 

943 

733 

608 

410 

410

Mean.

6.960 

7; 480 

3,440 

1,320 

1,200 

883 

553 

522

Run-off 

(total in 

acre-feet).

69,000 

445,000 

212,000 

81,200 

71,400 

54, 300 

32,900 

32, 100

998,000

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

B. 

B.

The above monthly discharge for 1906 supersedes the values published in Water-Supply Paper 211.
GRAND RIVER DRAINAGE BASIN. 101

Monthly discharge of Grand River near Wolcott, Colo., for 1906,1907, and 1908 Cont'd.

Month.

1907.o

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

1908 b

May 1-20. ...........................................

Discharge in second-feet.

Maximum.

472 

495 

3,040 

3,380 

11,300 

12,300 

11,500 

3,240 

1,270 

1,360 

550

733 

2,670 

4,190

Minimum.

343 

359 

495 

1,140 

2,170 

5,010 

3,380 

1,270 

669 

550 

285

313

410 

1,400

Mean.

397 

408 

1,300 

1,880 

4,870 

10,100 

6,700 

1,900 

896 

814 

425 

251

2; 500

353 

337 

491 

1,480 

2,390

Run-off 

(total in 

acre-feet).

24,400 

22, 700 

79,900 

112,000 

299,000 

601,000 

412,000 

117,000 

53,300 

50,100 

25, 300 

15,400

1,810,000

21,700 

19,400 

30, 200 

88,100 

94,800

254,000

Accuracy.

D. 

D. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

C. 

D.

D. 

D. 

C. 

A. 

A.

alee conditions December 12-31, 1907, and discharge estimated.

b Partial ice conditions January 1 to February 5, 1908, and discharge estimated.

GRAND RIVER AT GLENWOOD SPRINGS, COLO.

This station was established May 12, 1899, discontinued July 17, 

and reestablished January 7, 1900. It is located at Glenwood Springs. 

The gage is of the float type and is placed on the right bank of the 

river about one-fourth of a mile above the state bridge. Discharge 

measurements are made from a cable underneath this bridge (PI. 

X, B, p. 182). (See Water-Supply Paper 175, pp. 81-82, for a detailed 

description of the gages used to date.)

This may be considered a base station, as the records show the 

entire run-off of the basin above the mouth of Roaring Fork. Ice 

never forms at this station, as the hot water from the nearby springs 

keeps the water above the freezing point even in the most severe 

weather. The winter records are, therefore, of especial value, as they 

furnish a basis for estimating approximately the discharge of the 

streams at other stations in the basin during the ice period.

The station is about one-fourth mile above Roaring Fork, which is 

the third largest tributary of the Grand.

A few minor irrigation ditches are taken out between this and the 

Kremmling station, but do not, however, affect the discharge to any 

appreciable extent. The Shoshone plant of the Central Colorado 

Power Company, having a head of 170 feet, was practically completed in 1908. The tail water from this plant is returned to the river 

above the gaging station.

The position and datum of this gage have remained unchanged.
102 SURFACE WATER SUPPLY, 1907-8.

Results at this station are satisfactory. Conditions have always 

been permanent except during 1907 and 1908, when the debris from 

the Shoshone plant was deposited in the river bed, thereby changing 

the rating of the stream.

Discharge measurements of Grand River at Glenwood Springs, Colo., in 1907 and 1908.

Date.

1907.

June 23.........

July 29. ........

1908.

April 12........

May 11.........

June 21. .......

July 8. .........

July 20. ........

September 23...

October 28.....

Hydrographer.

R.I. Meeker .......................................

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

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

J. B. Stewart. ......................................

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

J. B. Stewart. ......................................

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

C. L. Chatfleld .....................................

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

C. L. Chatfield .....................................

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

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

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

Width.

Feet. 

185

217

220

214

205

190

185

185

193

215

211

198

200

185

185

183

Area of 

section.

Sq.ft. 

490

1,670

1,700

1,210

770

643

467

458

694

i,250

1,000

809

770

507

508

414

Gage 

height.

Feet. 

3.75

9.10

9.53

7.20

5.30

4.77

a3.60

3.47

4.62

5.80

7.10

5.93

5.17

5.11

4.05

4.35

3.88

Discharge.

Sec.-ft. 

1,020

16, 200

17,100

7 4.^

2,930

1 380

747

738

1,740

3,870

4,170

2 160

934

882

690

oGageheight somewhat uncertain, owing to gage being out of order. b River entirely open.

Daily gage height, in feet, of Grand River at Glenwood Springs, Colo., for 1907 and 1908.

[W. H. Richardson, observer.]

Day.

1907. 

1.. .............

3...............

4...............

6...............

7..-.----..-.-..

8...............

10...............

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

12............... 

13...............

14...............

15...............

16...............

17...............

19...............

20...............

21...............

22...............

23...............

24...............

25. ..............

26...............

27...............

28...............

29...............

30. ..............

01

1908. 

1...............

2. ..............

3...............

5...............

Jan.

3.35

3.12

3.10

3.08

3.48

3.48

3.50

3.35

3.38

3.32

3.35

3.38 

3.40

3.45

3.48

3.48

3.45

3.45

3.40

3.28

3.18

3.20

3.32

3.32

3.40

3.42

3.50

3.48

3.40

3.40

3

Af\

3.8

3.75

3.8

3.85

3.85

Feb.

3.42

3.50

3.48

3.48

3.48

3.68

3.60

3.58

3.58

3.55

3.55

3.60 

3.60

3.65

3.65

3.65

3.65

3.68

3.62

3.62

3.65

3.68

3.72

3.78

3.75

3.75

3.78

3.78

3.3

3.2

3.35

3.3

Mar.

3.62

3.62

3.55

3.65

3.72

3.70

3.75

3.75

3.80

3.80

3.78

3.60

3.65

3.58

3.65

3.75

4.35

5.05

5.48

5.65

5.15

4.95

5.10

5.15

4.88

4.65

4.38

3.75

3.7

3.7

3.75

3.8

Apr.

4.28

4.42

4.75

4.82

4.88

4.75

4.50

4.52

5.20

5.98 

6.12

6.18

6.35

6.60

6.60

6.35

6.05

5.80

5.52

5.45

5.45

5.40

5.40

5.40

5.32

5.45

5.52

3.95

4.0

3.9

3.85

3.7

May.

5.60

5.48

5.38

5.25

5.28

5.25

5.30

5.40

5.38

5.38

5.60

6.02 

6.55

6.52

6.25

6.08

6.15

6.48

6.88

7.50

8.25

8.78

9.12

9.12

8.82

8.40

7.90

7.62

7.60

7.55

7.55

4.65

4.8

5.1

5.4

5.4

June.

7.35

7.45

7.80

8.50

8.80

9.05

9.28

9.35

9.15

8.88

8.55

8.68 

9.25

9.72

10.00

10.25

10.30

10.20

10.22

10.15

9.95

9.60

9.55

9.70

9.82

9.90

9.95

9.78

9.72

9.75

6.35

6.55

6.7

7.0

7.4

July.

9.92

9.90

9.78

9.70

9.58

9.48

9.20

8.95

8.82

8.88

8.65

8.22 

7.85

8.10

8.22

7.62

7.30

7.22

7.15

7.02

7.00

7.05

7.00

6.90

6.98

7.12

7.12

7.08

7.17

7.00

6.85

6.5

6.3

6.15

6.1

6.1

Aug.

6.55

6.43

6.27

6.25

6.40

6.37

6.20

6.07

5.93

5.65

5.53

5.45 

5.33

5.25

5.30

5.33

5.30

5.25

5.17

5.17

5.20

5.13

5.03

4.93

4.87

4.85

4.85

4.93

4.87

4.87

4.90

5.1

5.3

5.4

5.15

4.95

Sept.

4.93

4.90

4.83

4.80

4.75

4.75

4.73

4.67

4.63

4.60

4.55

4.55 

4.55

4.47

4.50

4.50

4.53

4. .50

4.43

4.37

4.37

4.35

4.35

4.27

4.27

4.33

4.55

4.57

4.57

4.50

4.5

4.45

4.3

4.0

4.0

Oct.

4.50

4.55

4.53

4.65

4.60

4.65

4.85

5.00

5.05

4.97

4.87

4.85 

4.85

4.83

4.77

4.68

4.60

4.58

4.58

4.60

4.60

4.60

4.55

4.55

4.55

4.50

4.50

4.50

4.50

4.48

4.1

4.1

4.1

4.1

4.1

Nov.

4.50

4.50

4.45

4.40

4.38

4.32

4.20

4.15

4.15

4.18

4.05

3.90 

3.72

3.62

3.70

3.90

3.88

3.88

3.88

3.85

3.80

3.80

3.62

3.65

3.62

3.60

3.68

3.68

3.65

3.60

4.4

4.4

4.4

4.4

4.2

Dec.

3.58

3.55

3.48

3.42

3.45

3.45

3.55

3.68

3.75

3.72

3.68

3.70 

3.65

3.68

3.45

3.48

3.45

3.20

3.25

3.25

3.32

3.68

3.75

3.78

3.82

3.92

3.95

3.82

3.78

3.68

3.8

3.8

3.9

4.0

4.15
GRAND RIVER DRAINAGE BASIN. 103

Daily gage height, in feet, of Grand River-at Glen wood Springs, Colo.,for 1907 and 1908

Continued.

Day.

1908. 

6...............

7...............

8...............

9

10...............

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

12............... 

11

1 1

16. ..............

17...............

18...............

19.............. 

20..............

21...............

22...............

23............... 

24. .............. 

25...............

26. ..............

27...............

28...............

29. ..............

30. .............. 

31...............

Jan.

3.8

3.6

3.75

3.75 

3.8

3.8

3.9

3.75

3.8

3.8 

3.8

3.9

3.95 

4.0 

4.0

3.7

3.4

3.4

3.45

3.4 

3.4

Feb.

3.25

3.45

3.35

3.5

3.5

3.5

3.55

3.5 

3.5

3.6

3.55 

3.6 

3.6

3.6

3.7

3.7

Mar.

3.75

3.7

3.6

3.6

3.6

o 7

3.7 

3.8

4.05

4.2

4.2

4.3

4.2

4.1

4.0 

4.05 

4.1

4.2

4.2

4.15

3.95 

3.95

Apr.

9 7c

4.0

4.1

4.1

4.3

4.55 

4.75

5.0

5.2

5.4

5.35

5.4

5.75 

5.7 

5.5

5.2

5.0

4 9

4.9

4.8

May.

5.25

5.4

5.8

5.5

5.2

5.85

G.I 

6.5

6,75

6.25 

6.2 

6.4

6.5

6.4

6.05

5. 95 

6.1

June.

7.2

7.0

7.4

7.95

8.2

7.9

8.0

8.0

8.0

7.4 

6.95

7.1

7.35

7.6 

7. 5 

7.4

6.9

6.6

July.

5.9

5.8

5.7

5. 65

5.7

r 7

5.5

5.35 

5.2

5.1

4.9 

4.9 

4.9

4 9

4.9

4.8

4.8 

4.8

Aug.

4.8

4.7

5.1

c q

|3o

5.1

5.0

5.0

4.95

4.9 

4.95

5.1

5.1 

5.1 

5.05

4.9

4.8

4.65 

4.6

Sept.

3.9

4.0

4.0

4.1

4.1

4.2

4.2

4.2

4.1

4.1 

4.0

4.0

4.1 

4.0 

4.0

4.1

4.2

4.1

4.05

Oct.

4.1

4.1

4.1

4.1

4.15

4.1

4.1

4.2

4.1

4. 15

4.2

4.3

4.3

4.25 

4.15

4.4

4.3

4.3

4.4 

4.4

Nov.

4.1

4.1

4.0

4.0

4.0

4.0

4.0

4.1 

4.1

4.2

4.2

4.1 

4.2 

4.15

3.9

Q Q

3.85

3.7

Dec.

4.1

4.0

3.85

3 9

3.8 

3.9

3.9

3.9

4.0

4.0

3.8

3.7 

3.5

3. 45 

3.7 

3.8

3.8

3.8

Q Q

3.9

3.9 

3.9

NOTE. Owing to the swiftness of the current and the discharge of warm water from the springs the gage 

height, at this point is not affected by ice conditions.

Rating tables for Grand River at Glemoood Springs, Colo.

JANUARY 1,1900, TO SEPTEMBER 7, 1907, AND NOVEMBER 12, 1907, TO JULY 31,1908.

Gage 

height.

Feet.

3.00

3.10

3.20

3.30

3.40

3.50

3.60

3.70

3.80

3.90

4.00

4.10

Discharge.

Sec.-ft.

480

530

580

630

690

760

830

910

990

1,080

1,180

1,290

Gage 

height.

Feet.

4.20

4.30

4.40

4.50

4.60

4.70

4.80

4.90

5.00

5.10

5.20

Discharge.

Sec.-ft.

1,400

1,510

1,630

1,750

1,870

2,000

2,140

2,290

2,440

2,590

2,740

5. 30 2, 890

1

! Gage 

height.

Feet.

5.40

5.50

5.60

5.70

5.80

Discharge.

Sec.-ft.

3,050

3,220

3,400 '

3,590

3,790

5.90 4,000

6.00

6.20

6.40

6.60

4,210

4,640

5,090

5,580

6.80 , 6,110

7.00 6,670

Gage 

height.

Feet.

7.20

7.40

7.60

7.80

8.00

8.20

8.40

8.60

8.80

9.00

10.00

11.00

Discharge.

Sec.-ft.

7,260

7,910

8,620

9,380

10,210

11.110

12,090

13, 160

14,350

15.6C.O

22.000

29,900

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1900 to 1908, and is well denned.

SEPTEMBER 8 TO NOVEMBER 11, 1907, AND AUGUST 1 TO 23, 1908. 

[The indirect method for shifting channels used.] 

AUGUST 24,1908, TO DECEMBER 31,1908.

Gage

height.

Feet.

3.30

3.40

3.50

3.60

3.70

Discharge.

Sec.-ft.

415

445

485

525

575

Gage

height.

Feet.

3.80

3.90

4.00

4.10

4.20

Discharge.

Sec.-ft.

635

705

785

875

975

Gage

height.

Feet.

4.30

4.40

4.50

4.60

4.70

Discharge.

Sec.-ft.

1,075

1,185

1,305

1,435

1,570

Gage

height.

\ Feet.

4.80

4.90

5.00

5.10

Discharge.

Sec.-ft.

1,710

1.850

2.000

2,150

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on four discharge measurements made during 1908 and 1909 and the form of the 1907 curve. It is fairly well denned.
104 SURFACE WATER SUPPLY, 1907-8.

Daily discharge, in second-feet, of Grand River at Glenwood Springs, Colo., for September 

8 to November 11, 1907, and August 1 to 23, 1908.

1...............

2...............

3...............

4. ..............

5...............

6...............

7. ..............

8...............

10...............

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

12...............

13

14...............

15...............

Sept.

1,850

1,800

1,760

1,700

1,700

1,700

1,610

1,640

1907.

Oct.

1,320

1,380

1,360

1,490

1,440

1,490

1,600

1,790

1,850

1,750

1,630

1,600

1,480

1,450

1,380

Nov.

1,370

1,370

1,430

1,370

1,350

1,280

1,170

1,220

1,220

1,250

1,130

Aug.,

1908.

2,450

2,800

2,980

2,550

2,150

2,000

2,000

1,930

1,850

1,800

1,720

2,270

2,600

2,430

2,270

Day.

16...............

17...............

18...............

19...............

20...............

21 ...............

22...............

23...............

24...............

25...............

26...............

27...............

28

29...............

30...............

31...............

Sept.

1,640

1,560

1,530

1,450

1,380

1,380

1,350

1,350

1,180

1,180

1,240

1,480

1,500

1,500

1,420

1907.

Oct.

1,290

1,210

1,190

1,290

1,290

1,290

1,230

1,320

1,320

1,280

1,280

1 280

1,370

1,350

1,260

Nov.

Aug.,

1908.

2,050

2,050

2 000

i osfl

9 nnfi

2,150

2,150

2 1 *tf}

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Grand River at Glenwood Springs, Colo., for 1907 and 1908. 

[Drainage area, 4,520 square miles.]

Month.

1907.

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

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

The year

1908.

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

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

December

Discharge in second-feet.

Maximum.

760 

974 

3,500 

5,580 

16,500 

24, 700 

22,000 

5,460 

2,340 

1,850 

1,430 

1,130

24,700

1,180 

910 

1,510 

3,690 

5,980 

11,100 

5,330 

2,980 

1,300 

1,180 

1,180 

925

11,100

Minimum.

520 

704 

795 

1,460 

2,820 

7,740 

6,250 

2,220 

1,180 

1,230 

830 

580

520

690 

580 

830 

910 

1,940 

4,980 

2,140 

1,440 

705 

785 

575 

430

430

Mean.

674 

853 

1,550 

3,180 

6,820 

18,400 

11,400 

3,290 

1,670 

1,400 

1,070 

839

4,260

954 

745 

1,130 

2,230 

3,790 

7.880 

3,280 

2,080 

884 

960 

885 

677

2,120

Per 

square 

mile.

0.149 

.189 

.343 

.704 

1.51 

4.07 

2.52 

.728 

.370 

.310 

.237 

.186

.943

.211 

.165 

.250 

.493 

.838 

1.74 

.726 

.460 

.196 

.212 

.196 

.150

.469

Run-off.

Depth in 

inches on 

drainage 

area.

0.17 

.20 

.40 

.79 

1.74 

4.54 

2.90 

.84 

.41 

.36 

.26 

.21

12.82

.24 

.18 

.29 

.55 

.97 

1.94 

.84 

.53 

.22 

.24 

.22 

.17

6.39

Total in 

acre-feet.

41,400 

47,400 

95,300 

189,000 

419,000 

1.090,000 

701,000 

202,000 

99,400 

86, 100 

63,700 

51,600

3,090,000

58,700 

42,900 

69,500 

133,000 

233,000 

469,000 

202,000 

128,000 

52,600 

59,000 

52,700 

41,600

1,540,000

Accuracy.

B. 

B. 

A. 

A. 

A. 

A. 

A. 

B. 

B. 

B. 

B. 

C.

A. 

A. 

B.

!: 

£

C. 

B.

%.

A.

NOTE. Indirect method for shifting channel used September 8 to November 11, 1907, and August 1 to 

23, 1908. Change in conditions of flow during the latter period was caused by a deposit of sediment from 

construction operations at the Shoshone tunnel of the Central Colorado Power Company, about 10 miles 

above Glenwood.
GRAND RIVER DRAINAGE BASIN.

GRAND RIVER AT PALISADES, COLO.

105

This station, which, was established April 9, 1902, to obtain information concerning the amount of water available for irrigation in 

Grand River Valley, is located at the steel highway bridge 2 miles 

above Palisades.

The station is below all important tributaries except Gunnison 

and Dolores rivers.

Numerous large irrigation ditches divert water above and below 

this station. The proposed high-line canal of the United States 

Reclamation Service will take its water about 7 miles above Palisades. A water-power pumping plant just above the station pumps 

about 80 second-feet for irrigation. There are several similar plants 

in that vicinity and other important plants now in course of construction.

The river usually freezes over at the highway bridge a portion of 

the winter, but except for the interference of slush ice and an occasional thin ice cover the winter results are good.

No change has been made in the location or datum of the chain 

gage on the highway bridge during the maintenance of the station.

The section at the highway bridge is permanent, but measuring 

conditions are not very good, especially during very high water, 

when the current is very swift. All measurements in 1907 and 1908 

were made from a suspension bridge at Palisades, 2 miles below the

Flood measurements prior to 1906 at the upper bridge are less 

reliable than those at the suspension bridge.

Discharge measurements of Grand River at Palisades, Colo., in 1907 and 1908.

Date.

1907.

April 27........

July 27. ........

1908.

April 11........

July?..........

Hydrographer.

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

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

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

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

S. O. Harper. ......................................

Width.

Feet. 

255

311

391

419

321

307

268

247

233

267

316

301

254

Area of 

section.

Sq.ft. 

614

1,330

3,030

3,400

2,120

1,150

886

547

522

833

1,610

1,130

610

Gage 

height.

Feet. 

12.50

14.70

19.85

17.50

14.35

13.30

12.39

12.70

13.24

15.90

14.25

12.50

Discharge.

Sec.-ft. 

1,710

5,290

23,400

14, 100

4,760

2,680

1,360

1,280

2,690

7,360

4,250

1,820

a The river was practically free from ice at the suspension bridge. 

to bottom of ice, 11.80 feet.

Ice 1 foot thick at gage. Gageheight
106 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Grand River at Palisades, Colo., for 1907 and 1908. 

[E. N. Purdy and J. J. Morrow, observers.]

1 Day.

1907.« 

1...............

2...............

3...............

5...............

6...............

7. ..............

8...............

9............... 

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20. ..............

21...............

22...............

23...............

24...............

25...............

26. ..............

27. ..............

28. ..............

29. ..............

30...............

31...............

1908.6 

1...............

2...............

3...............

4...............

5. ..............

6...............

7...............

8...............

10...............

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

12. ..............

13...............

14. ..............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22. ..............

23...............

^....... ........

25. ..............

26...............

27...............

28...............

29...............

30. ..............

31...............

Jan.

12.6

12.6

12.8

12.8 

12.8

12.8 

12.8

12.9

12.65

12.55 

12.4

12.6

12.8

12.9

12.8

12.6

12.5

12.5

12.55

12.6

12.75

12.75

12.75

12.95

12.8

12.55

12.55

12.6

12.55

12.5

Feb.

12.25

12.2

12.2

12.3

12.3

12.25

12.25

12.3

12.4

12.45

12.35

12.35

12.35

12.45

12.4

12.3

12.4

12.55 

12.55

12.55 

12.5

12.55

12.55

12.7

12.7

12.6

12.6

12.7

12.7

12.6

12.6

12.6

12.6

12.5

12.5

12.4

12.45

12.4

12.65

Mar.

12.35

12.25

12.2

12.2

12.25

12.6

12.45

12.35

12.35 

12.35

12.35

12.35

12.55

12.35

12.25

12.35

12.25

12.25

12.5

13.3

13.95

14.3

14.5

14.0

13.65

13.6

13.75

13.65

13.45

13.2

13.05

12.45

12.35

12.25

12.35

12.35 

12.45

12.3 

12.2

12.15

12.2

12.25 

12.2

12.2

12.3

12.45

12.65

12. 75

12.8

12.75

12.65

12.65

12.6

12.55

12.55

12.5

12.65

12.8

12.65

12.45

12.4

Apr.

12.95

12.95

13.0

13.1

13.55

13.65

13.6

13.45

13.4 

13.6

14.1

15.1

15.55

15.7

16.1

16.35

16.35

16.15

15.8

15.45

15.0

14.75

14.6

14.65

14.65

14.65

14.7

14.75

14.95

15.0

12.4

12.45

12.4

12.5 

12.55

12.55 

12.75

12.9

13.05

13.1 

13.4

13.7

14.05

14.35

14.75

14.95

14.8

14.75

14 9

15.1

15.3

15.45

15.35

15.1

14.7

14.4

14.15

14.05

13.95

May.

14.9

14.7

14.6

14.55

14.35

14.35

14.45

14.5

14.5 

14.45

14 65

15.1

15.8

15.9

15.7

15.45

15.45

15.85

16.5

17.45

18.45

19.2

19.65

19.8

19.35

18.95

18.35

18.15

17.85

17.65

17.6

13.85

13.9

14. 05

14.7 

14.55

14.4 

14.5

15.3

15.2 

14.95

14.85

14.7

14.55

14.5

14.8

15.35

15.85

16. 35

16.75

16.45

16.25

16.2

16.25

16.35

16.3

16.1

15.85

15.7

15.7

June.

17.55

17.65

18.35

19.0

19.6

19.95

20.25

20.25

20.1 

19.65

19.3

19.6

19. 95

20.4

20.8

21.0

21.0

21.1

20.95

20.85

20.65

20.4

20.4

20.4

20.35

20.45

20.35

20.4

20.6

20.75

15.95

16.5

17.1

17.6

17.85

17.8 

17.4

17.3

17.95

18.65 

19.2

19.05

18.75

18.95

18.65

18.65

18.15

17.4

17.25

17.2

18.1

18.0

17.95

17.75

17.55

17.7

17.2

16.85

Tuly.

20.95

20.9

20.95

20.5

20.4

20.35

20.1

19.7

19.5 

19.5

19.3

18.7

18.25

18.45

18.55

18.0

17.4

17.05

16-95

16.75

16.6

16.7

16.6

16.45

16-4

17.05

17.35

17.3

17.15

16.6

16.25

16.5

16.25

16.1

16.05 

16.0

15.8 

15.6

15.3

15.0

15.1 

15.05

15.1

14.9

'14. 95

15.0

14.75

14.5

14.25

14.1

13.95

13.85

13.75

13.7

13.65

13.6

13.6

13.6

14.4

13.6

Aug.

16.0

15. 75

15.65

15.5

15.65

15.5

15.25

15.05

14.85 

14.7

14.55

14.45

14.25

14.2

14.2

14.2

14.2

14.05

14.05

14.0

14.1

14.05

13.95

13.75

13.9

14.0

13.85

13.8

13.75

13.7

13.8

13.95

14.35

14.5

14.15

13. 75 

13.6

13.6 

13.5

13.35

13.3

13.55 

14.0

14.15

14.3

14.15

14.0

13.85

13.8

14.05

14.0

13.95

13.85

13.75

13.6

13.55

13.45

13.3

13.1

13.0

Sept.

13.75

13.65

13. 55

13.45

13.55

13.5

13.4

13.4

13.35 

13.2

13.15

13.1

13.05

13.0

13.1

13.3

13.3

13.25

13.15

13.1

13.05

13.0

12.95

12.9

12.95

13.0

13.0

13.05

13.1

13.1

13.0

12.85

12.75

12.7

12.65 

12.6

12.5 

12.5

12.5

12.6

12.6 

12.55

12.7

12.6

12.6

12.6

12.6

12.6

12.55

12.5

12.4

12.4

12.4

12.4

12.55

12.6

12.6

12.6

12.6

12.6

12.65

Oct.

13.25

13.25

13.25

13.25

13.25

13.25

14.0

13.85

13.7 

13.6

13.55

13.35

13.25

13.25

13.3

13.25

13.25

13.15

13.1

13.1

13.1

13.1

13.0

13.0

13.05

13.0

13.0

13.0

13.0

13.0

13.0

12.65

12.6

12.6

12.6

12.6 

12.6

12.6 

12.6

12.6

12.55

12.5 

12.5

12.5

12.5

12.4

12.6

12.65

13.6

13.35

1*3 1

12.95

12.75

12.7

12.7

12.65

12.65

12.7

12.7

12.7

12.7

12.65

Nov.

13.0

13.0

13.0

12.95

12.9

12.9

12.9

12.8

12.8 

12.8

12.8

12.65

12.55

12.4

12.4

12.45

12.6

12.6

12.6

12.6

12.55

12.5

12.4

12.3

12.35

12.4

12.4

12.5

12.45

12.5

12.65

12.65

12.55

12.55 

12.6

12.5 

12.55

12.55

12.55

12.5

12.5

12.45

12.4

19 35

12.55

12.35

12.35

12.4

12.45

12.45

12.5

12.45

12.4

12.25

12.2

12.2

12.2

Dec.

12.35

12.4

12.1

12.2

12.3

12.4 

12.4

19 *\^

12.3

12.3

12.25

12.25

12.15

12.15

12.45

13.0

13.2

13.2

13.3

13.25

13 9

13.2

13.1

13.0

12.8

12.7

12.6

12.8

12.2

12.25

12.3

12.35 

12.35

12.25 

12.15

12.2

12.15

12.25

12.15

12.2

12.2

12.6

12.25

12.0

12.15

12.4

12.55

12.95

13.4

14.05

14.4

14.9

14.7

14.75

olce conditions December 15 to 31,1907.

6 Ice conditions prevailed January 1 to February 27,1908. River frozen over December 23 to 31,1908.
GRAND RIVER DRAINAGE BASIN. 107 

Rating table for Grand River at Palisades, Colo.,for 1907 and 1908.

Gage 

height.

Feet.

12.00

12.10

12.20

12.30

12.40

12.50

12.60

12.70

12.80

12.90

13.00

13.10

13.20

Discharge.

Sec.-ft.

1,170

1,260

1,350

1,450

1,550

1,650

1,760

1,880

2,000

2,130

2,270

2,420

2,570

Gage 

height.

Feet.

13.30

13.40

13.50

13.60

13.70

13.80

13.90

14.00

14.10

13.20

14.30

14.40

14.50

Discharge.

Sec.-ft.

2,730

2,890

3,050

3,210

3,380

3,550

3,720

3,900

4,080

4,260

4,450

4,640

4,840

Gage Disheight. charge.

Feet.

14.60

14.70

14.80

14.90

15.00

15.20

15.40

15.00

15.80

16.00

16.20

16.40

16.60

Sec.-ft.

5,040

5,250

5,460

5,680

5,900

6,350

6,810

7,290

7,780

8,310

8,880

9,490

10, 130

Gage 

height.

Feet.

16.80

17.00

17.20

17.40

17.60

17.80

18.00

19.00

20.00

21.00

22.00

Discharge.

Sec.-ft.

10,780

11,450

12,140

12,860

13,600

14,360

15,150

19,400

24,200

29,600

35,500

NOTE. The above table is not applicable for ice or obstracted-channel conditions. It is based on discharge measurements made during 1902 to 1909, and is fairly well defined above gage heights 12.2 feet. 

In computing many of the earlier high-water measurements too high a coefficient was used in reducing 

surface to mean velocities. These measurements have been revised in drawing the above curve, which 

is probably the best curve for the entire period, 1902 to 1909.

Monthly discharge of Grand River near Palisades, Colo.,for 1907 and 1908. 

[Drainage area, 8,550 square miles.]

Month.

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

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

November

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

December &

Discharge in second-feet.

Maximum.

1,600 

4,840 

9,340 

23,200 

30,200 

29,300 

8,310 

3,460 

3,900 

2,270 

1,550

1,820 

2,000 

6,930 

10,600 

20,300 

9,810 

4,840 

2,270 

3,210 

1,820 

1,760

20,300

Minimum.

1,350 

1,350 

2,200 

4,540 

13,400 

9,030 

3,380 

2,130 

2,270 

1,450 

1,260

1,350 

1,550 

3,640 

8,180 

3.210 

2,270 

1,550 

1,550 

1,350 

1,170

1,170

Mean.

1,460 

2,240 

5,250 

10,500 

24,800 

17,000 

4,890 

2,600 

2,640 1,820' 

1,370

1,300 

1,320 

1,630 

3,900 

6,720 

14,600 

5,670 

3,550 

1,760 

1,890 

1,600 

1,320

3,770

Per 

square 

mile.

0.171 

.262 

.614 

1.23 

2.90 

1.99 

.572 

.304 

.309 

.213 

.160

.152 

.154 

.191 

.456 

.786 

1.71 

.663 

.415 

.206 

.221 

.187 

.154

.441

Run-off.

Depth in 

inches on 

drainage 

area.

0.09 

.30 

.68 

1.42 

3.24 

2.29 

.66 

.34 

.36 

.24 

.18

.18 

.17 

.22 

.51 

.91 

1.91 

.76 

.48 

.23 

.25 

.21 

.18

6.01

Total in 

acre-feet.

40. 500 

138,000 

312,000 

646,000 

1,480,000 

1,040,000 

301,000 

155, 000 

162,000 

108,000 

84.200

4,470,000

79,900 

75,900 

100,000 

232, 000 

413,000 

869, 000 

349, 000 

218, 000 

105,000 

116,000 

95,200 

81,200

2,730,000

Accuracy.

B. 

B. 

A. 

A. 

A. 

A. 

A. 

B. 

B. 

B. 

C.

C. 

C. 

B. 

A. 

A. 

A. 

A. 

A. 

B. 

B. 

B. 

B.

a Discharge estimated December 21,1907, to February 10,1908. following approximately the rate of rise 

and fall at Glenwood Springs. Values for February 11 to 27 are based on the gage heights allowing for 

ice as noted by the observer.

& Discharge estimated December 21-31; maximum and minimum are for December 1 to 20.
108 SURFACE WATER SUPPLY, 1907-8.

NOETH INLET TO GRAND LAKE AT GRAND LAKE, COLO.

Two streams, known as the North and East inlets, flow into Grand 

Lake, North Inlet being the larger.

The gaging station on the North Inlet, which was established August 3, 1905, to obtain information concerning the run-off from a high 

mountainous area and also for use in connection with power development, is located at the footbridge which crosses the stream about 100 

yards north of the mouth and 300 yards east of the Grand Lake postoffice.

The approximate elevation of this basin is 8,000 to 11,000 feet above 

sea-level, and the fall of the stream is very great.

No important tributaries enter above the station, which therefore 

gives results for the whole drainage area, measuring 36.5 square miles.

No water is diverted above the station, but filings have already been 

made for power development.

The stream is frozen over with thick ice for about four months. 

Gage readings during this period are therefore of little value.

No change has been made in the datum of the staff gage at the 

bridge during the maintenance of the station.

The accuracy of the records is affected by the roughness of the 

stream bed and by ice conditions. The records are fragmentary as 

the gage has not been read continuously.

Discharge measurements of North Inlet to Grand Lake at Grand Lake, Colo., in 1907 and

1908.

Date.

1907.

Tii no 94.

July 22.. .......

1908.

May 20. ........

July 3. .........

July 27.........

October 22.....

Hydrographer.

C. L. Chatfield .....................................

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

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

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

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

C. L. Chatfield .....................................

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

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

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

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

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

Width.

Feet. 

60

56

52

6

5

49

52

51

49

46

47

45

7

7

Area of 

section.

Sq.ft. 

140

106

63

35.8

4

2.8

2.1

79

94

90

60

64

42

38

5.2

4

Gage 

height.

Feet. 

3.78

3.13

2.53

2.06

4.32

2.80

3.00

2.88

2.42

2.50

2.12

2.00

2.40

Discharge.

Sec.-ft. 

488

284

109

21.2

3.3

6.5

3.1

151

204

174

68

84

27

14

7.7

6

a Ice conditions. Measurements by wading.

NOTE. Discharge measurements made at this station in 1905 and 1906 are published in Water-Supply 

Papers 175, p. 75, and 211, p. 67, respectively.
GRAND KIVEE DRAINAGE BASIN. 109

Daily gage height, in feet, of North Inlet to Grand Lake at Grand Lake, Colo.,for 1907 and

1908.

[J. Cairns and B. V. Click, observers.]

Day.

1907.

2.......

6.......

g

10.......

11.......

12.......

1 Q.

14.......

15.......

1 ft

17. ......

19

91

OO

24.......

OC

26. ......

97

00

29

30

31.......

Mar.

2.2

2 25

2.2

2

0

2.3

2.2

2 9

2.2

Apr.

2.2

2.4

2.4

9 ^

2.5

2.5

9 ^

2.5

2.55

2.55

2.6

2.5

2

AK

2.45

2.45

2.45

2.4

9 ^

2.4

2.4

2.3

July. Aug.

2.73

2.68

2.63

2.58

2.50

2.50

2.50

2.45

2.45

2.40

2.35

2.35

2.35

2.30

2.30

Oct.

2.01

2.01

2.01

2.01

2.01

2.02

2.02

2.02

2.01

2.01

2.01

2.01

2.01

2.01

2.01

2.01

2.01

2.01

2.01

2.01

2

nn

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

Day.

1908. 

1.......

2.......

3.......

4.......

5.......

6.......

7.......

8.......

9.......

10.......

11.......

12.......

13.......

14.......

15.......

16.......

17.......

18.......

19.......

20.......

21.......

22.......

23.......

24.......

25.......

26.......

27.......

28. ......

29.......

30.......

31.......

Mar. Apr.

'

July.

2.85

2.95

3.0

2.95

2.95

2.85

2.85

2.8

' 2.8

2.8

2.8

2.85

2.85

2.8

2.7

2.6

2.6

2.55

9 HH

2.5

2.42

Aug. Oct.

Rating tables for North Inlet to Grand Lake at Grand Lake, Colo.

1905 TO 1907.

Gage 

height.

Feet.

1.80

1.90

2.00

2.10

2.20

2.30

2.40

2.50

Discharg

Sec.-}

1

1

2

4

6

8

10

Gage

height.

Feet.

2.60

2.70

2.80

2.90

3.00

3.10

3.20

3.30

Discharge.

Sec.-ft.

125

150

177

206

237

269

303

339

Gage

height.

Feet.

3.40

3.50

3.60

3.70

3.80

3.90

4.00

Discharge.

Sec.-ft.

377

417

459

503

548

595

644

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1905 to 1907, and 1908, and is fairly well defined above gage height 2.0 

feet.

Gage 

height.

Feet.

2.40 

2.50 

2.60

Discharge.

Sec.-ft.

65 

84 

104

Gage 

height.

Feet.

2.70 

2.80

Discharge.

Sec.-ft.

127 

152

Gage 

height.

Feet.

2.90 

3.00

Discharge.

Sec.-ft.

178 

205

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 

discharge measurements made during 1908 and is well defined.
110 SURFACE WATEE SUPPLY, 1907-8. 

Monthly discharge of North Inlet to Grand Lake at Grand Lake, Colo.,for 1905 to 1908.

Month.

1905.

1906. 

May 3-31 ............................................

July 1-22 ............................................

1907. 

March 17-31 .........................................

1908.

July 3-27 ............................................

Discharge in second-feet.

Maximum.

60 

17 

14 

11 

11

321 

644 

317

70 

125 

158 

19

205

Minimum.

17

7 

7 

9

7

51 

200 

155

42 

42 

60 

17

69

Mean.

33.9 

10.7 

8.2 

10.7 

7.6

194 

351 

259

49.9 

85.1 

95.5 

17.7 

4.0

5.5 

4-0 

134

Run-off 

(total in 

acre-feet).

2,080 

637 

504 

637 

467

4,320

11,200 

20,900 

11,300

1,480 

5,060 

4,920 

1,090 

246

338 

230 

6,640

Accuracy.

D. 

D. 

D. 

D. 

D.

B. 

B. 

B.

B. 

B. 

A. 

B. 

D.

D. 

D. 

A.

NOTE. Ice conditions during December, 1907, January and February, 1908, and discharge estimated. 

GRAND LAKE OUTLET AT GRAND LAKE, COLO.

This station, which was established July 31, 1904, is located at the 

west end of Grand Lake, about one-half mile south of Grand Lake 

post-office. Granby, about 15 miles distant, on the Denver, Northwestern and Pacific Railroad, is the nearest railroad point.

The records of the station show the storage possibilities of Grand 

Lake and the total run-off from the North and East inlets, and are 

valuable for use in connection with power development. The drainage area at the station is 62 square miles.

Shore ice forms at the station for about four months, but the stream 

does not freeze over because of the higher temperature of the water 

coming out of Grand Lake.

The location and datum of the staff gage have remained unchanged 

during the maintenance of the station.

During low stages, the rough bottom and sluggish character of the 

stream affect the accuracy of the results to a considerable extent.

Measurements have been made at various sections, but usually at 

a ford one-fourth mile downstream from the footbridge where the 

gage is located. There is a tag wire across the stream at the ford.
GKAND EIVEE DRAINAGE BASIN. Ill 

Discharge measurements of Grand Lake Outlet at Grand Lake, Colo., in 1907 and 1908.

Date.

1907.

July 21.........

Of>tnViar 9

1908.

May 20........

July 3. .........

July 27. ........

Hydrographer.

C . L. Chatfleld .....................................

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

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

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

C . L. Chatfleld .....................................

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

C. L. Chatfleld .....................................

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

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

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

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

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

Width.

Feet. 

196

147

123

100

28

28

14

125

125

125

123

125

40

36

12

10

Area of 

section.

Sq. ft.

389

246

138

79

14

12

12

147

187

171

114

122

28

21

5.6

9.4

Gage 

height.

Feet. 

3.95

3.25

2.40

1.70

1.35

1.30

1.25

2.68

3.05

2.80

2.20

2.35

1.80

1.58

1.40

1.40

Discharge.

Sec.-ft. 

938

534

179

45

5

7

6

240

389

314

127

144

43

20

13.2

13

NOTE. The above measurements were made by wading at various sections.

Daily gage height, in feet, of Grand Lake Outlet at Grand Lake, Colo. ,for 1907 and 1908. 

[Mrs. Myrtle Westcott, observer.]

Day.

1907.o 

1...............

2.. .............

6...............

7...............

8.. .......... ... 

9...............

10...............

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

12...............

13......... ......

14...............

15. ..............

16.--..-..-...-.. 

17............... 

18... ...... ......

19...............

20. ..............

21............... 

22...............

23...............

24...............

25. ..............

26...............

27...............

28...............

29

30...............

31...............

1908.o 

1. ..............

2

4...............

5...............

Jan.

1.40

1.40

1.40

1.38

1.35

1.35

1.35 

1 35

1.35

1.35 

1.35

1.35

1.35

1.35 

1.30 

1.30

1 30

1.30

1.30 

1.30

1.30

1.30

1.30

1.30

1.30

1.30

1.30

1.30

1.30

1.25

1.25

1.3

Feb.

1.30

1.35

1.40

1.42

1.42

1.40

1.40

1.40 

1.40

1.40

1.40

1.40

1.38

1.40

1.35 

1.35 

1.35

1.35

1.35

1.35 

1.32

1.30

1.30

1.30

1 30

1.30

1.30

1.3

1 3

1.3

1.3

Mar.

1.30

1.30

1.35

1.35

1.32

1.30

1.32

1.35

1.35

1.35 

L38

1.40

1.40

1.40

1.38 

1.40 

1.35

1.35

1.42

1.45 

1.48

1.50

1.50

1.55

1 60

1.60

1.65

1 60

1.55

1 9K.

1.25

1 9^

1.25

1.25

Apr.

1.55

1.55

1.55

1.58

1 60

1.65

1.62 

1.62

1.65

1.72 

1.80

1.82

1.90

1.95

2.00 

2.00 

1.95

1.90

1.85

1.80 

1.80

1.78

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.3

1 95

1.25

May.

1.70

1.70

1.70

1.65

1.65

1.70

1.70

1.70 

1.70

1.70

1.78 

1.88

1.95

1.95

1.95

1.95 

1.95 

2.02

2.22

2.50

2.80

3.08

3.02

2.90

2.55

2.45

2.38

2.35

2.28

1 S

1.75

i OK

1.95

June.

2.30

2.42

2.68

2.72

2.88

3.22

3.15

3.08 

3.00

2 88

2.88

3.42

3.68

3.88 

3.82

4.15

3.95

3.85

3.90

3.98

4.15

3.98

3.98

4.12

2.45

2.6

3.05

July.

4.15

4.18

4.15

4.00

4.15

4.12

4.02

4.05 

3.95

3.82

3.68 

3.52

3.48

3.62

3.52

3.30 

3.20 

3.18

3.10

3.15

3.22 

3.20

3.22

3.05

3.05

3.62

3

90

2.90

9 Q

O Q

2

0

9 S

2.85

Aug.

2.82

2.70

2.78

2.85

2.70

2 60

2.55 

2.50

2.48

2.45

2.32

2.28

2.25

2.25 

2.25 

2.20

2.15

2.15

2.15 

2.10

2.08

2.05

2.05

2.05

2.05

2.05

2

f\K

1.95

2

7K

2.6

2

C

2.4

2.3

Sept.

1.95

1.95

1.92

1.90

1.85

1.82 

1.80

1.80

1.78 

1.75

1.72

1.70

1.70

1.75 

1.70 

1.70

1.65

1.65

1.68

1.72

1.65

1.68

2.0

1 Q^

1 9

1.9

Oct.

1.72

1.70

1.70

1.65

1.68

1.68

1.80

1.82 

1.88

1.88

1.85 

1.82

1.88

1.82

1.72 

1.72 

1.68

1.68

1.65

1.62 

1.62

1.62

1.62

1.55

1.55

1.58

1 (vQ

1.55

1.55

1.7

1.65

1.65

1.65

Nov.

1.55

1.50

1.50

1.50

1.45

1.45

1.45

1.45 

1.45

1.45

1.45 

1.40

1.40

1.40

1.35

1.35 

1.35 

1.35

1.35

1.32

1.30 

1.30

1 30

1.30

1.25

1.25

1.25

1.25

1.22

1.5

1.5

1.5

1.5

1.45

Dec.

1.20

1.20

1.20

1.20

1.15

1.15

1.15

1.15 

1.15

1.15

1.15 

1.15

1.15

1.15

1.15

1.15 

1.15 

1.15

1.15

1.15

1.15 

1.15

1.15

1.15

1.20

1.20

1.20

1.20

1.20

1.20

1.25 

1.35

1.35

1.35

1.35

1.35

Gage heights practically unaffected by ice conditions, 1907 and 1908.
112 SURFACE WATER SUPPLY, 1901-8.

Daily gage height, in feet, of Grand Lake Outlet at Grand Lake, Colo., for 1907 and

1908 Continued.

Day.

1908.0 

6...............

7...............

8...............

9...............

10...............

12. ..............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27--...--........

28...............

29...............

30

31...............

Jan.

1.3

1.3

1.3

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.3

1.3

1.3

1.25

1.25

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

Feb.

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

Mar.

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.3

1.3

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.3

1.3

1.3

Apr.

1.25

1.25

1.3

1.3

1.35

1.4

1.5

1.6

1.7

1.9

2.0

2.05

2.1

2.1

2.1

2.15

2.2

2.15

2.1

2.0

2.0

1.9

1.85

1.8

May.

1.9

1.95

2.0

2.2

2.2

2.1

2.1

2 0

2.0

1.95

1.95

2.1

2.25

2.4

2.7

2.7

2.55

2.4

2.3

2.4

2.4

2.3

2.3

2.2

2.25

2.35

June.

3.0

2.9

2.8

2.7

2.9

3.1

3.4

3.25

3.2

3.35

3.4

3.5

3.4

3.0

2.95

3.25

3.55

3.6

3.4

3.3

3.3

3.3

3.1

3.0

2.9

July.

2.8

2.8

2.8

2.8

2.8

2.75

2.75

2.75

2.7

2.7

2.65

2.6

2.5

2.45

2.4

2.3

2.3

2.25

2.3

2.25

2.25

2.2

2.2

2.2

2.6

2.9

Aug.

2.25

2.2

2.2

2.15

2.1

2.3

2.65

2.65

2.6

2.5

2.4

2.4

2.3

2.3

2.35

2.5

2.7

2.8

2.6

2.5

2.4

2.4

2.2

2.15

2.1

2.1

Sept.

1.85

1.8

1.8

1.8

1.8

1.85

1.8

1.8

1.85

1.85

1.8

1.8

1.8

1.75

1.75

1.75

1.7

1.7

1.7

1.65

1.65

1.65

1.65

1.7

1.7

Oct.

1.65

1.65

1.65

1.65

1.65

1.6

1.6

1.6

1.55

1.55

1.55

1.55

1.55

1.55

1.55

1.55

1.55

1.55

1.55

1.55

1.55

1.5

1.5

1.5

1.5

1.5

Nov.

1 J5

1.45

1.45

1.45

1.45

1 45

1.45

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1 35

1.35

1.35

1.35

Dec.

i 35

1.35

1.35

1.35

1 35

1 or

1.35

1.35

1 35

1 35

1 35

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

a Gage heights practically unaffected by ice conditions, 1907 and 1908.

Rating tables for Grand Lake Outlet at Grand Lake, Colo. 

1906 AND 1907.

Gage

height.

Feet.

1.15

1.20

1.30

1.40

1.50

1.60

1.70

1.80

1.90

Discharge.

Sec.-ft.

3

4

i

11

16

23

33

47

64

Gage

height.

Feet.

2.00

2.10

2.20

2.30

2.40

2.50

2.60

2.70

2.80

Discharge.

Sec.-ft.

84

106

131

159

190

224

260

298

338

Gage

height.

Feet.

2.90

3.00

3.10

3.20

3.30

3.40

3.50

3.60

3.70

Discharge.

Sec.-ft.

379

420

465

515

565

615

670

725

780

Gage

height.

Feet.

3.80

3.90

4.00

4.10

4.20

4.30

Discharge.

Sec.-ft.

835

890

945

1,000

1,055

1,110

NOTE. The above table is not applicable for ice or obstructed-channel conditions, 

discharge measurements made during 1906 and 1907, and is well defined.

JANUARY 1 TO OCTOBER 31, 1908.

It Is based on ten

Gage

height.

Feet. 

1.20

1.30

1.40

1.50

1.60

1.70

1.80

Discharge.

Sec.-ft. 

4.5

7.5

11

16

22

32

44

Gage

height.

Feet. 

1.90

2.00

2.10

2.20

2.30

2.40

2.50

Discharge.

Sec.-ft. 

60

77

97

119

143

170

199

Gage

height.

Feet. 

2.60

2.70

2.80

2.90

3.00

3.10

3.20

Discharge.

Sec.-ft. 

230

263

297

333

372

413

456

Gage

height.

Feet. 

3.30

3.40

3.50

3.60

Discharge.

Sec.-ft. 

502

550

600

656

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on nine 

discharge measurements made during 1908 and form of preceding curves. It is well defined between gage 

height 1.25 feet and 3.05 feet.
GRAND RIVER DRAINAGE BASIN. 113

Rating tables for Grand Lake Outlet at Grand Lake, Colo. Continued.

NOVEMBER 1 TO DECEMBER 31, 1908.

Gage

height.

Feet.

1.35

1.40

Discharge.

Sec.-ft.

11

13

Gage

height.

Feet.

1.45

1.50

Discharge.

Sec.-ft.

15

18

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on two discharge measurements and form of preceding curve.

Monthly discharge of Grand Lake Outlet at Grand Lake, Colo., for 1907 and 1908.

Month.

1907.

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

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

July.....-.......--......--..----.-..................

The year. .....................................

1908.

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

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

Discharge in second-feet.

Maximum.

11 

12 

28 

84 

456 

1,030 

1,040 

358 

74 

61 

20 

5.5

1,040

7.5 

7.5 

7.5 

119 

263 

656 

333 

297 

77 

32 

18 

13

656

Minimum.

7 

7 

7 

20 

28 

159 

379 

74 

28 

20 

4.6 

3.0

3

6 

6 

6 

6 

38 

184 

119 

97 

27 

16 

11 

11

6

Mean.

8.3 

9.4 

13.3 

42.9 

147 

685 

698 

175 

41.3 

34.9 

10.4 

3.4

156

6.87 

6.62 

6.24 

47.3 

119 

424 

231 

174 

44.0 

21.5 

13.9 

12.0

92.2

Run-off 

(total in 

acre-feet).

510 

522 

818 

2,550 

9,040 

40,800 

42,900 

10,800 

2,460 

2,150 

619 

209

113,000

422 

381 

384 

2,810 

7,320 

25,200 

14,200 

10,700 

2,620 

1,320 

827 

738

66,900

Accuracy.

D. 

D.

D. 

C. 

A. 

A. 

A. 

A. 

C. 

C. 

D. 

D.

B. 

B. 

C. 

B. 

A. 

A. 

A. 

A. 

B. 

B. 

B. 

B.

FRASER RIVER AT GRANBY, COLO.

Fraser River rises among the peaks of the Front Range in southeastern Grand County and flows in a generally northwesterly direction 

to its junction with Grand River in the east-central part of Middle 

Park.

The gaging station, which was established July 28, 1904, to obtain 

data for use in determining the availability of the stream for power, 

storage, and irrigation, is located at the wagon bridge three-quarters 

of a mile southwest of Granby, about 4 miles above the mouth of 

Fraser River, in sec. 9, T. 1 N., R. 76 W., and is below all tributaries.

The drainage area is about 220 square miles. 

24439 IRE 249 10 8
114 SUKFACE WATER SUPPLY, 1907-8.

Other than small irrigation ditches, there are no important diversions above the station. A small canal is taken out a few feet downstream from the measuring section. It is proposed to divert water by 

means of a tunnel from the headwaters of this river into the headwaters of South Boulder Creek, in the Platte drainage basin.

Thick ice covers the stream for about four months of the year; 

anchor ice also occurs. Each year in the low season a small temporary diversion dam is generally constructed about 50 feet below the 

station to divert the water into the canal below. This dam backs 

the water up on the gage, thus affecting the conditions of free flow.

Neither the location nor the datum of the staff gage at the highway bridge has been changed during the maintenance of the station.

Measuring conditions are rather poor. During high stages the 

measurements are affected by backwater and a boiling effect caused 

by the crib piers of the bridge. During low stages ice conditions and 

the temporary diversion dam interfere with good results.

Discharge measurements of Fraser River at Granby, Colo., in 1907 and 1908.

Date.

1907.

July 19

November 25 a

1908.

May 19 ........

July2 .........

July 26 ........

Hydrographer.

C. L. Chatfleld .....................................

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

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

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

J. B . Stewart. ......................................

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

C.L. Chatfleld... ..................................

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

C.L. Chatfleld..................... ................

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

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

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

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

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

Width.

Feet.

59

58

53.5

80

41

9

58

58

65

42

39

38

23

Area of 

section.

Sq.ft. 

110

197

1 AQ

116

93

OA

QQ

18

131

139

88

80

73

CC

25

Gage 

height.

Feet. 

5.05

5.42

4.64

4.65

ft K AQ

c4.80

5.20

5 80

5.32

4 90

A on

4.60

4.50

4.70

Discharge.

Sec.-ft. 

242 i Ann

431

188

97

49

AK

37

284

677

165

121

78

46

Vf

48

a Ice conditions.

b To water surface; to top of ice, 6.18; thickness of ice, 3.10.

c To water surface; to top of ice, 6.20; thickness of ice, 3.10.

<* Measured below pumping station opposite Granby; river partly frozen.

NOTE. These measurements were made at various sections.
GRAND EIVER DRAINAGE BASIN. 115

Daily gage height, infect, of Fraser River at Granby, Colo.,for 1907 and 1908. 

[J. N. Ostrander, observer.]

Day.

1907.a 

1..............

2..............

3...... ........

4.............. 

5..............

7..............

8.............. 

9

10..............

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

12. ............. 

13..............

14.............. 

15. .............

16..............

17..............

18.............. 

19

20. ............. 

21..............

22.............. 

23.............. 

24.............. 

25..............

26.............. 

27.............. 

28.............. 

29. ............. 

30.............. 

31..............

1908.6 

1..............

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9..............

10..............

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

12..............

1Q

14..............

15..............

16........ .....

17..............

18..............

19..............

20..............

21..............

22..............

23..............

24..............

25..............

26..............

27..............

28..............

29..............

30..............

31..............

Jan.

-------

-------

-------

5.5

5.5

5.5

5.5

5.5

5.4

5.4

5.4

5.4

5 A

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Feb.

.......

.......

Mar.

4.4

4.4 

4.5

4.65 

4.7

4.7 

4.7 

4.7 

4.65

4.6 

4.6 

4.6 

4.5 

4.5 

4.55

Apr.

4.65

4.7

4.65

4.65 

4.6

4.6

4.6

4.65 

4.7

5.0

5.25 

5.1 

5.1

5.15 

5.15

5.15

5.05

5.0 

4 9

4.9

5.0 

5.05 

4.9 

4.9

4.9 

4.9 

4.9 

4.95 

4.95

4.5

4.5

4.5

4.5

4.5

4.5

4.6

4.6

4.6

4.6

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.6

4.6

4 g

4.6

4.6

May.

4.9

4.85

4.85

4.8 

4.8

4.8

4.9

4.95 

4.95

4.95

5.0 

5.3 

5.3

5.3 

5.2

5.25

5.25

5.3 

5.55

5.7

6.25 

6.3 

6.3 

6.05

5.8 

5.8 

5.75 

5.75 

5.7 

5.8

4.6

4.6

4.6

4.65

4.7

4.7

4.8

4 Q

4.9

4.85

4.8

4.8

4.8

4.8

4.8

4.8

4.9

4.95

5.1

5.2

5.1

5.2

5.2

5.3

5.3

5.3

5.2

1 9

5.2

5.2

5.2

June.

5.7

5.75

5.85

5.95 

6.15

6.35

6.25 

6.2

6.0

6.05 

6.3 

6.4

6.6 

6.7

6.75

6.6

6.65 

6.7

6.55 

6.5

6.35 

6.5 

6.5 

6.5

6.5 

6.45 

6.45 

6.35 

6.5

5.3

5 A

5.5

5.5

5.5

5.6

5.6

5.6

5.6

5.7

S o

6.0

6.1

6.1

6.0

K CK

S

O

5.75

5.6

5.6

5.6

5.6

5.7

5.6

5.6

5.6

5.6

5.6

5.5

5.5

July.

6.45

6.4

6.4

6.3

6.2

6.15

6.1

6.05 

6.0

5.95

5.9 

5.8 

5.9

6.0 

5.85

5.65

5.6

5.6 

5.5

5.35 

5.25

5.2 

5.1 

5.1 

5.05

5.2 

5.4 

5.35 

5.35 

5.2 

5.15

5.4

5.4

5.4

5.3

5.3

5.2

5.15

5.1

5.1

5.1

5.05

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

4.9

5.0

4.9

5 9

5.25

5.45

5.45

Aug.

5.1

5.05

5.0

5.25 

5.15

5.05

5.0

5.0 

4.9

4.8 

4.85 

4.8

4.8 

4.8

4.8

4.8

4.8 

4.8

4.8 

4.8

4.8 

4.8 

4.8 

4.75

4.7 

4.7 

4.8 

4.8 

4.8

5.3

5.15

5.1

5.0

4 Q

5.1

5.15

5.0

4 9

4 9

4 95

5.15

5 9

1 9

4 9

4 9

4 9

5.0

5.1

5.1

5.1

5.0

5.0

5.0

4.9

4.85

4.8

4

Q

4.8

4.8

4.8

Sept.

4.7

4.7

4.7

4.7 

4.7

4.7

4 7

4.7 

4.7

4.7

4.7 

4.6 

4.6

4.6 

4.6

4.6

4.6

4.6 

4.6

4.6 

4.6

4.6 

4.5 

4.5 

4.5

4.5 

4.5 

4.5 

4.5 

4.5

4.7

4.7

4.7

4.6

4 g

4.6

4.55

4

KK

4.5

4.6

4.6

4.6

4.6

4.55

4.5

4.5

4.5

4.45

A AK

4.4

4.4

4.4

4.4

4.45

4.5

4.5

4.6

4.6

Oct.

4.5

4.5

4.5

4.5 

4.5

4.5

4.5

4.5 

4.5

4.5

4.5 

4.5 

4.5

4.5 

4.5

4.5

4.5

4.5

4.5

4.5

4.5 

4.5 

4.5 

4.5

4.5 

4.5 

4.5 

4.5 

4.5 

4.5

4.6

4.6

4.6

4 6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.5

4.5

4.55

4.55

4.5

4.55

4.55

4.6

4.55

4.55

4.55

Nov.

4.5

4.4

4.4

4.4 

4.4

4.3

4.3 

4.3

A Q

4.3 

4.3 

4.3

4.3

A OK

4.5

4.5

4.5

4

KK

4

KK

4.55

4.55

4

KK

4.55

4.55

4

K

4.5

4.5

4.5

4.5

4.5

4.7

4.8

4.8

4.8

4.8

4 9

4 9

5.1

Dec.

-------

.......

:::.:::

4.95

5.0

5.1

5.1

5.1

5.15

5.15

5.25

5.25

1 91

5 25

5.4

1 91

5.3

5.1

5.1

5.1

5.3

5.4

5.45

5.5

5.35

5.3

5.3

5.4

5.45

5.55

5.6

5.6

5.6

5.6

olce condition November 16 to December 31,1907.

6 Ice conditions January 1 to March. 31,1908, and November 22 to December 31,1908. Beginning July 24, 

1908, conditions of flow affected by changes made In diversion weir below station.
116 SURFACE WATER SUPPLY, 1907-8.

Rating tables for Fraser River at Granby, Colo. 

MARCH 17 TO JUNE 14, AND JULY 6 TO NOVEMBER 15,1907.

Gage

height.

Feet.

4.25

4.30

4.40

4.50

4.60

4.70

4.80

Discharge.

Sec.-ft.

45

50

60

80

100

120

150

Gage Disheight. charge.

Feet. Sec.-ft.

4.90

5.00

180

220

5. 10 260

5. 20 310

5.30

5.40

370

430

5.50 500

Gage

height.

Feet.

5.60

5.70

5.80

5.90

6.00

6.10

6.20

Discharge.

Sec.-ft.

570

650

730

820

910

1,000

1,100

Gage

height.

Feet.

6.30

6.40

6.50

6.60

Discharge.

Sec.-ft.

1,210

1,310

1,420

1,530

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1904 to 1907 and form of the 1905 curve. It is well denned except at low 

stages.

JUNE 15 TO JULY 5, 1907.

[Indirect method for shifting channels used.]

APRIL 1 TO JULY 23, 1908.

Gage

height.

Feet.

4.50

4.60

4.70

4.80

4.90

Discharge.

Sec.-ft.

66

83

105

132

163

Gage

height.

Feet.

5.00

5.10

5.20

5.30

5.40

Discharge.

Sec.-ft.

197

235

280

332

391

Gage

height.

Feet.

5.50

4.60

5.70

5.80

5.90

Discharge.

Sec.-ft.

455

524

598

677

763

t Gage

height.

Feet.

6.00

6.10

Discharge.

Sec.-ft.

854

950

NOTE. The above table is not applicable for obstructed-channel conditions. It is based on four discharge measurements made during 1908 and the form of the 1907 curve. It is well denned between gage 

heights 4.9 feet and 6.1 feet.

JULY 24 TO NOVEMBER 21, 1908. 

[Indirect method for shifting channels used.]

Daily discharge, in second-feet, ofFraser River at Granby, Colo., for June 15 to July 5,1907.

Day.

2..................

3..................

5..................

8..................

g

10..................

June. July.

1,280

1,240

1,260

1.090

Day.

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

12.................

13.................

14.................

15.................

16.................

17.................

18.................

19. ................

20.................

June.

1,610

1,630

1,440

1,450

1,470

1,280

July. Day.

21................

22...............

23................

24................

25 ................

26................

27................

28................

29.... ...........

30................

31................

June.

1,190

1,050

1,180

1,190

1,210

1,230

1,200

1,210

1,130

1,300

July.

NOTE. These discharges were obtained by the indirect method for shifting channels.
GRAND RIVER DRAINAGE BASIN. 117

Daily discharge, in second-feet, of Fraser River at Granby, Colo.,for July 24 to November

21, 1908.

Day.

1.......

2.......

4.......

6.......

7. ......

8.......

9

10.......

12.......

13.......

14.......

15.......

July. Aug.

120

87

80

110

87

70

70

80

20

140

120

Sept.

86

86

70

70

70

62

62

60

75

75

78

68

61

Oct.

70

70

70

64

64

64

64

56

56

56

Nov.

46

46

46

46

50

50

50

50

50

50

50

46

46

46

46

Day.

16.......

17.......

18.......

19

20.......

21.......

22.......

23.......

24.......

25.......

20.......

27.......

28.......

29.......

30.......

31.......

July.

190

200

165

150

140

150

210

210

Aug.

122

122

153

186

190

190

157

157

160

129

115

104

107

107

107

107

Sept.

60

60

60

60

53

53

50

50

50

50

52

58

58

70

70

Oct.

56

56

56

56

51

46

46

50

50

46

50

50

55

50

50

50

Nov.

46

46

46

46

46

46

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Fraser River at Granby, Colo.,for 1907 and 1908.

Month.

1907. 

March 17-31 .........................................

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

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

July.............'....................................

December

1908.

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

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

November

Discharge in second-feet.

Maximum.

120 

340 

1,210 

1,610 

1,280 

340 

120 

80 

80

105 

332 

950 

391 

190 

86 

70

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

Minimum.

60 

100 

150 

650 

240 

120 

80 

80

66 

83 

332 

140 

70 

50 

46

Mean.

96.7 

190 

494 

1,180 

680 

175 

102 

80.0 

49.7 

45.0

45.0 

37.6 

45.1 

90.6 

194 

580 

232 

123 

64.6 

57.4 

49.6 

52.3

131

Run-off 

(total in 

acre-feet).

2,880 

11,300 

30,400 

70,200 

41,800 

10,800 

6,070 

4,920 

2,960 

2,770

184,000

2,770 

2,160 

2,770 

5,390 

11,900 

34,500 

14, 300 

7,560 

3,840 

3,530 

2,950 

3,210

95,000

Accuracy.

C. 

B. 

A. 

B. 

A. 

B. 

B. 

C. 

D. 

D.

D. 

D. 

D. 

C. 

A. 

A. 

B. 

C. 

D. 

D. 

D. 

D.

NOTE. Ice conditions and discharge estimated for periods November 15 to December 31,1907; January 

1 to March 31, and November 22 to December 31, 1908. Discharge obtained by shifting-channel methods 

for June 15 to July 5, 1907, and July 24 to November 21,1908.

WILLIAMS FORK NEAR SULPHUR SPRINGS, COLO.

Williams Fork rises in the Williams River Mountains and flows 

northwestward, joining Grand River in the central part of Middle 

Park.
118 SUEFACE WATEE SUPPLY, 1907-8.

The gaging station was established July 25, 1904, to obtain data 

for use in connection with the development of the stream for power, 

storage, and irrigation. It is located near the mouth of the stream, 

at the wagon bridge on the ranch of F. A. Field, about 9 miles west 

of Hot Sulphur Springs, Colo. The nearest railroad point is Parshall, a station on the Denver, Northwestern and Pacific Railroad.

The drainage area is about 200 square miles.

The station is below all tributaries. A number of irrigation 

ditches divert water above the station, and it is possible that in the 

future a tunnel will divert water from the headwaters of Williams 

Fork to the headwaters of Clear Creek in the Platte drainage basin. 

Some work has been done toward the construction of a reservoir and 

power plant a couple of miles downstream from the station.

Springs keep the ice from getting very thick at this station, but 

slush ice occurs frequently throughout the winter.

No change has been made in the location or in the datum of the 

staff gage at the bridge during the maintenance of the station.

Results are satisfactory. During low stages in the winter, the 

flow is constant, being nearly all from springs.

Discharge measurements of Williams Fork near Sulphur Springs, Colo., in 1907 and 1908.

Date.

1907.

April 26.......

May 28........

June 21 ........

July 18........

November 24...

1908.

February 29 b. .

March 18c......

April 17. .......

May 22........

July 4..........

July25.........

October 24.....

Hydrographer.

C. L. Chatfield .....................................

C. L. Chatfield .....................................

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

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

J. B . Stewart .......................................

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

C. L. Chatfield. ....................................

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

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

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

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

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

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

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

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

Width.

Feet. 

26

45

50

64

51

48

45

42

34

28

38

47

49

54

52

48

45

45

45

27

24

Area of 

section.

Sq.ft. 

44

71

106

154

112

80

67

55

47

44

37

79

94

131

97

80

70

67

63

44

31

Gage 

height.

Feet. 

3.17

3.45

4.08

4.70

4.15

3.65

3.42

3.09

3.12

3.10

3.19

3.65

3.92

4.50

4.07

3.68

3.49

3.37

3.33

3.20

4.60

Dis 

charge.

Sec.-ft. 

45

92

342

860

373

144

75

42

40

40

51

131

230

614

269

133

91

65

69

58

51

a Fringe of ice along banks.

b Ice along edges. Right channel frozen solid, ice 1.7 feet thick.

c Wading measurement.

d Measurement through ice.
GRAND RIVER DRAINAGE BASIN. 119

Daily gage height, in feet, of Williams Fork near Sulphur Springs, Colo.,for 1907 and

1908.

[F. A. Field, observer.]

Day.

1907.1 

1...............

2...............

3...............

4........ ......

5...............

6...............

7...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22........ ......

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

1908. b 

1...............

2..

3...............

4....... .......

5...............

6.....;.........

8...............

9...............

10...............

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

12.

13... ... ..

14....... ...

15....... .......

16....... ...

17...............

18...............

19............ ..

20...............

21........ . .

22..

23.. . ..

24..

25............ .

26..............

27...............

28...............

29. ..............

30...............

31...............

Jan.

3.25

3.20

3.20

3.18

3.22

3.20

3.21

3.20

3.18

3.18

3.19

3.19

3.18

3.19

3.20

3.15

3.18

3.18

3.16

3.18

3.15

3.15

3.18

3.14

3.12

3.12

3.14

3.12

3.13

3.10

3.14

3.2 

3.2

3.15

3.2

3.2

3.15

3.15

3.2

3.2

3.2

3.2

3.15

3.15

3.15

3.15

3.15

3.15

3.15

3.15

3.15

3.1

3.1

3.1

3.1

3.1

3.15

3.1

3.1

3.1

Feb.

3.14

3.14

3.14

3.14

3.13

3.12

3.12

3.14

3.12

3.12

3.12

3.12

3.14

3.14

3.14

3.15

3.15

3.15

3.16

3.16

3.16

3.18

3.18

3.19

3.17

3.17

3.17

3.16

3.1 

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.05

3.05

3.1

3.1

3.1

3.1

3.1

3.1

3.05

3.05

3.1

3.1

3.1

3.05

3.1

3.1

.......

Mar.

3.15

3.18

3.18

3.18

3.18

3.19

3.17

3.14

3.14

3.16

3.18

3.16

3.18

3.15

3.15

3.20

3.22

3.57

3.92

3.71

3.74

3.57

3.48

3.44

3.49

3.49

3.38

3.29

3.32

3.36

3.25

3.1 

3.05

3.1

3.1

3.1

3.1

3.0

3.0

3.1

3.1

3.1

3.1

3.15

3.2

3.2

3.25

3.2

3.2

3.15

3.15

3.1

3.2

3.15

3.1

3.1

3.15

3.1

3.15

3.1

3.15

3.15

Apr.

3.33

3.33

3.40

3.44

3.40

3.40

3.36

3.35

3.40

3.54

3.70

3.60

3.68

3.74

3.78

3.84

3.74

3.64

3.60

3.52

3.38

3.55

3.54

3.60

3.58

3.56

3.56

3.60

3.59

3.55

3.1 

3.05

3.15

3.2

3.2

1 9

3.2

3.4

3.5

3.55

3.55

3.6

3.7

3.7

3.7

3.7

3.65

3.6

3.65

3.7

3.7

3.55

3.45

3.45

3.45

3.45

3.45

3.4

May.

3.55

3.52

3.54

3.51

3.50

3.55

3.58

3.58

3.57

3.56

3.68

3.78

3.79

3.74

3.72

3.70

3.76

3.78

3.91

4.05

4.24

4.28

4.32

4.35

4.26

4.18

4.12

4.10

4.15

4.10

4.04

3.5 

3.6

3.75

3.6

3,6

3.6

3.7

3.8

3.75

3,7

3.7

3.65

3.65

3.6

3.7

3.85

3.85

3.9

4.05

3.95

3.95

3.95

3.85

4.05

4.0

3.95

3.9

3.9

3.95

June.

4.04

4.19

4.28

4.22

4.22

4.28

4.42

4.38

4.40

4.35

4.35

4.50

4.62

4.72

4.80

4.87

4.81

4.80

4.88

4.75

4.72

4.72

4.80

4.81

4.86

4.89

4.88

4.80

4.86

4.92

4.05 

4.05

4.1

4.25

4.25

4.25

4.2

4.15

4.2

4.4

4.5

4.6

4.5

4.55

4.6

4.6

4.65

4.55

4.35

4.35

4.45

4.6

4.5

4.45

4.45

4.4

4.4

4.25

4.2

July.

4.99

4.92

4.82

4.78

4.78

4.72

4.68

4.64

4.56

4.58

4.47

4.45

4.40

4.44

4.35

4.32

4.26

4.22

4.18

4.14

4.11

4.08

4.03

4.06

4.12

4.18

4.18

4.14

4.04

3.98

3.93

4.2 

4.2

4.1

4.1

4.0

4.0

4.0

3.95

4.0

4.0

4.0

3.95

3.95

3.95

3.95

3.85

3.8

3.75

3.7

3 7

3.7

3.7

3.7

3.7

3.6

3.6

3.6

3.55

3.55

3.65

Aug.

3.88

3.86

3.82

3.88

3.82

3.82

3.79

3.81

3.80

3.72

3.62

3.64

3.62

3.62

3.60

3.70

3.65

3.60

3.61

3.61

3.65

3.61

3.56

3.60

3.54

3.59

3.56

3.51

3.50

3.50

3.50

3.6 

3.6

3.55

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.6

3.6

3.55

3.5

3.5

3.5

3.5

3.5

3.6

3 a

3.6

3.65

3.6

3.6

3.6

3.6

3.6

3.55

3.5

3.45

Sept.

3.48

3.48

3.45

3.45

3.45

3.42

3.44

3.35

3.35

3.31

3.30

3.30

3.31

3.30

3.30

3.30

3.30

3.30

3.30

3.30

3.30

3.30

3.30

3.30

3.30

3.40

3.45

3.38

3.36

3.41

3.4 

3.35

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.4

3.35

3.3

3.3

3.3

3.3

3.3

3.3

3.25

3.25

3.25

3.25

3.3

3.3

3.3

3.3

3.35

3.35

Oct.

3.44

3.44

3.43

3.42

3.41

3.42

3.49

3.46

3.42

3.40

3.40

3.38

3.37

3.36

3.36

3.35

3.35

3.32

3.32

3.33

3.34

3.36

3.36

3.37

3.34

3.32

3.31

3.33

3.32

3.32

3.32

3.4 

3.3

3.3

3.3

3.35

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.25

3.2

3.25

3.3

3.3

3.3

3.4

3.4

3.3

3.3

3.3

3.3

3.2

3.15

3.2

3.3

3.35

3.2

Nov.

3.30

3.30

3.30

3.30

3.30

3.30

3.26

3.28

3.26

3.21

3.19

3.10

3.00

3.02

3.02

3.22

3.12

3.22

3.15

3.00

3.12

3.12

3.10

3.14

3.13

3.14

3.14

3.20

3.27

3.20

3.3 

3.2

3.2

1 9

3.2

3.15

3.15

3.1

3.2

3.2

3.2

3.2

3.3

3.25

3.25

3.25

3.25

3.25

3.2

3.2

3.2

3.2

3.15

3.1

3.2

3.2

3.2

3.2

3.15

3.25

Dec.

3.21

3.18

3.30

3.28

3.25

3.08

3.13

3.14

3.14

3.18

3.11

3.11

3.16

3.14

3.18

3.20

3.22

3.22

3.20

3.20

3.22

3.22

3.20

3.20

3.16

3.16

3.18

3.15

3.15

3.15

3.15

3.2 

3.15

3.2

3.3

3.2

3.25

3.2

3.3

3.35

3.3

3.2

3.25

3.3

3.25

3.25

3.2

3.2

3.2

3.2

3.3

3,45

3.95

3.95

3.9

4.0

3.9

3.8

3.5

3.5

3.4

3.25

a Discharge more or less affected by ice conditions from about January 1 to March 15, and about November 

12 to December 31,1907. Most of the gage heights during this period are afternoon readings.

6 Discharge more or less affected by ice conditions from January 1 to about the end of March, and from 

about the 1st of November to December 31,1908.
120 SURFACE WATER SUPPLY, 1907-8.

Rating tables for Williams Fork near Sulphur Springs, Colo.

1907.

Gage

height.

Feet. 

3.00

3.10

3.20

3.30

3.40

3.50

Discharge.

Sec.-ft. 

30

38

50

64

82

105

Gage

height.

Feet. 

3.60

3.70

3.80

3.90

4.00

4.10

Discharge.

Sec.-ft. 

130

160

200

240

290

345

Gage

height.

Feet. 

4.20

4.30

4.40

4.50

4.60

4.70

Discharge.

Sec.-ft. 

415

490

570

660

760

860

Gage

height.

Feet. 

4.80

4.90

5.00

Discharge.

Sec.-ft. 

970

1,080

1,200

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1904 to 1907, and is well denned below gage height 4.2 feet.

JANUARY 1 TO JUNE 17, 1908, AND OCTOBER 1 TO NOVEMBER 5, 1908.

Gage

height.

Feet.

3.00

3.10

3.20

3.30

3.40

Discharge.

Sec.-ft.

30

38

50

64

82

Gage

height.

Feet.

3.50

3.60

3.70

3.80

3.90

Discharge.

Sec.-ft.

102

127

154

185

221

Gage

height.

Feet.

4.00

4.10

4.20

4.30

4.40

Discharge.

Sec.-ft.

267

321

384

456

533

Gage

height.

Feet.

4.50

4.60

4.70

Discharge.

Sec.-ft.

614

702

798

NOTE. The above table is not applicable for ice or obstructed-channel conditions, 

discharge measurements made during above periods, and is well denned.

JUNE 18 TO SEPTEMBER 30. 1908.

It is based on seven

Gage

height.

Feet.

3.20

3.30

3.40

3.50

Discharge.

Sec.-ft.

41

55

72

91

Gage

height.

Feet.

3.60

3.70

3.80

3.90

Discharge.

Sec.-ft.

113

139

169

205

Gage

height.

Feet.

4.00

4.10

4.20

4.30

Discharge.

Sec.-ft.

248

300

360

430

Gage

height.

Feet.

4,40

4.50

4.60

Discharge.

Sec.-ft.

510

598

093

NOTE. The above table is not applicable for obstructed-channel conditions. It is based on five discharge 

measurements made during latter part of 1908 and the form of earlier curves. It is well denned.

NOVEMBER 6 TO DECEMBER 19, 1908.

Gage

height.

Feet.

3.00

3.10

Discharge.

Sec.-ft.

40

48

Gage

height.

Feet.

3.20

3.30

Discharge.

Sec.-ft.

58

71

Gage

height.

Feet.

3.40

Discharge.

Sec.-ft.

86

Gage

height.

Feet.

3.50

Discharge.

Sec.-ft.

102

NOTE. The above table is applicable only for ice conditions. It is based on one discharge measurement 

made during the above period and is not well denned.
GRAND RIVER DRAINAGE BASIN. 121 

Monthly discharge of Williams Fork near Sulphur Springs, Colo.,for 1907 and 1908.

Month.

1907

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

The Vear

1908.

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

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

Tll6 Year

Discharge in second-feet.

Maximum.

57 

49 

250 

216 

530 

1,100 

1,190 

232 

100 

103 

64 

64

1,190

50 

38 

57 

154 

293 

749 

360 

126 

72 

82 

71

749

Minimum.

38 

40 

43 

69 

105 

312 

255 

105 

64 

66 

30 

36

30

38 

34 

30 

34 

102 

293 

102 

82 

48 

44 

48

30

Mean.

46.7 

43.6 

76.3 

120

249 

786 

580 

154 

74.9 

77.8 

48.7 

47.8

192

44.0 

37.3 

41.5 

98.5 

190 

511 

207 

101 

56.4 

63.4 

57.4 

57.5

122

Run-off 

(total in 

acre-feet).

2,870 

2,420 

4,690 

7,140 

15,300 

46,800 

35,700 

9,470 

4,460 

4,780 

2,900 

2,940

139,000

2,710 

2,150 

2,550 

5,860 

11,700 

30,400 

12, 700 

6,210 

3,360 

3,900 

3,420 

3,540

88,500

Accuracy.

C. 

C. 

B. 

A. 

A. 

A. 

A. 

A. 

B. 

B. 

B. 

C.

B. 

B. 

B. 

B. 

A. 

A. 

A. 

A. 

B. 

B. 

C. 

C.

NOTE. Ice conditions and discharge estimated December 20-31, 1908. The open-channel rating was 

applied for all other periods of possible ice conditions 1907-8. In general the main channel of the stream is 

but little affected by ice due to warm spring water entering above the station.

BLUE RIVER NEAR KREMMLING, COLO.

Blue River rises among the peaks of the Continental Divide in the 

extreme southeastern part of Summit County and joins Grand River 

just above the point where the latter stream enters Gore Canyon.

This station, which was established July 21, 1904, to determine the 

availability of the stream for storage, power, and irrigation, was discontinued November 30, 1908. It was located at the state highway 

bridge on the road between Kremmling and Dillon, Colo. The nearest railroad point is Kremmling, on the Denver, Northwestern and 

Pacific Railway, about 16 miles distant.

The locality is below all important tributaries, although it is several 

miles above the mouth of the stream. The drainage area is about 

700 square miles.

A number of small irrigation ditches divert water above the station. 

Numerous filings have been made for the rights above, but these do 

not call for all the available power. The present power development 

above the station amounts to about 2,000 horsepower.

During the winter months ice forms in the channel to such an 

extent as to make accurate gage readings and discharge measurements impossible.
122 SURFACE WATEE SUPPLY, 1907-8.

The datum of the chain gage on the bridge remained practically 

unchanged during the maintenance of the station.

Because of the very rough channel and severe winter conditions 

results are not very satisfactory.

Discharge measurements of Blue River near Kremmling, Colo., in 1907 and 1908.

Date.

1907. 

April 16........

July 17.........

1908.

July3..........

August 20. .....

Hydrographer.

C. L. Chatfield .....................................

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

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

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

J. B. Stewart. ......................................

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

C. L. Chatfleld .....................................

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

Width.

Feet. 

137

164

161

154

121

80

55

32

48

156

150

73

Area of 

section.

Sq.ft. 

231

476

382

277

149

QO

73

48

73

293

218

85

Gage 

height.

Feet. 

3.00

A OA

3.62

3.05

2.47

2 19

1.78

2.40

3.00

Discharge.

Sec.-ft.

2 600

i 73n

946

971

164

81

136

1 080

661

a River frozen across. Ice 1.1 to 2.2 feet thick. 

6 Ice conditions. Wading measurement. 

c Ice conditions,

Daily gage height, in feet, of Blue River near Kremmling, Colo., for 1907 and 1908. 

[T. G. Marcott and Jessie Marcott, observers.]

Day.

1907.a 

1... ............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9

10...............

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

12...............

13...............

14...............

15............... 

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23............... 

24. ..............

25...............

26. ..............

27...............

28...............

29...............

30. ..............

31...............

Jan.

. . .

.......

Feb.

.......

.......

Mar. Apr.

2.68

2.75

2.60

May.

2.55

2.55

2.58

2.58

2.60

2.60

2.60

2.58

2.65

2.68

2.85

3.10

3.00

2.90

2.85 

2.85

3.00

3.02

3.15

3.55

3.80

3.80

3.78 

3.65

3.65

3.65

3.35

3.40

3.45

3.32

3.15

June.

3.10

3.15

3.68

3.60

3.65

3.82

3.75

3.70

3.70

3.70

3.80

3.85

4.30

4.55

4.65 

4.55

4.65

4.60

4.85

4.55

4.25

4.25

4.50 

4.65

4.60

4.65

4.60

4.52

4.50

4.65

July.

4.75

4.65

4.60

4.40

4.45

4.40

4.40

4.50

4.45

4.50

4.25

4.15

4.05

4.10

3.75 

3.75

3.60

3.60

3.55

3.65

3.60

3.58

3.55 

3.58

3.70

3.72

3.82

3.72

3.65

3.55

3.45

Aug.

3.45

3.42

3.35

3.38

3.22

3.15

3.00

3.05

3.08

3.10

3.05

3.10

3.02

3.02

3.05 

3.05

3.00

2.98

3.00

2.98

2.98

2.90

2.82 

2.80

2.80

3.05

2.90

2.80

2.70

2.82

2.80

Sept.

2.72

2.72

2.68

2.60

2.62

2.65

2.62

2.65

2.62

2.55

2.50

2.50

2.50

2.52

2.62 

2.62

2.52

2.52

2.50

2.42

2.40

2.40

2.40 

2.40

2.40

2.48

2.55

2.48

2.40

2.40

Oct.

2.42

2.48

2.50

2.52

2.42

2.52

2.60

2.60

2.55

2.50

2.48

2.48

2.48

2.45

2.45 

2.40

2.35

2.35

2.32

2.30

2.30

2.30

2.25 

2.25

2.22

2.30

2.30

2.28

2.28

2.30

2.30

Nov.

2.28

2.28

2.22

2.25

2.30

2.28

2.28

2.25

2.20

2.15

2.15

2.20

2.20 

2.30

2.30

2.30

2.20

2.20

2.18

2.18

2.15 

2.10

2.20

2.25

2.20

2.35

2.20

2.08

Dec.

2.15

2.00

2.10

2.18

2.30

2.25

......

......

a Ice conditions prevailed after about the middle of November, 1907.
GRAND RIVER DRAINAGE BASIN. 123 

Daily gage height, in feet, of Blue River near Kremmling, Colo.jor 1907 and 1908 Cont'd.

Day.

1908.o 

I....... ........

2............... 

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21............... 

22...............

23............... 

24...............

25...............

26............... 

27...............

28............... 

29...............

30...............

31.-------.......

Jan.

2.55

2.65

Feb.

2.6

2 7

2.7

2.5

3.8

3.3

2.9

2.4

2.35

2." 4"

"2~3"

2.4

"2." 45'

Mar.

2.5

2.6

2.7

2.7

2.7

2.65

2.4

2.5

2.4

2.45

2.35

Apr.

2.0

2.1

2.2

2.2

2.4

2.7

2.5

2.7

2.75

2.7

2.9

2.7

2.65

2.7 

2.6

2.85 

2.7

2.6

2.45 

2.6

2.35 

2.4

2.4

May.

2.5

2.55

9 Q

2.7

2.7

2.6

2.75

2.9

2.65

2.8

2.8

2.8

2.75

2.75

2.65

2.7

3.1

3.1

3.3

3.45

3.1 

3.3

3.4 

3.1

3.35

3.0 

3.3

3.0

2.85

2.9

3.1

June.

3.3

3.6 

3.5

3.7

3.7

3.75

3.3

3.4

3.5

3.7

4.0

4.4

4.3

4.0

3.9

3.8

4.1

3.9

3.8

3.6

3.6 

3.8

3.55

3.3

3.45 

3.4

3.3 

3.5

3.5

July.

3.4

3.5 

3.4

3.45

3.4

3.35

3.3

3.3

3.3

3.3

3.35

3.3

3.4

3.2

3.3

3.4

3.3

3.3

3.0

3.1

2.9 

2.85

2.8 

2.8

2.75

2.8 

3.0

2.8 

2.75

2.7

2.9

Aug.

2.8

2.8 

2.9

2.8

2.7

2.7

2.75

2.7

2.8

2.6

3.0

2.8

2.6

2.7

2.7

2.7

2.6

2.6

2.7

2.7

2.9 

2.8

2.7 

2.7

2.6

2.65 

2.6

2.6 

2.5

2.5

2.5

Sept.

2.5

2.4

2.4

2.4

2.4

2.4

2.4

2.3

2.3

2.4

2.4

2.3

2.4

2.5

2.4

2.3

2.3

2.4

2.35

2.3

2.3 

2.3

2.25 

2.3

2.3

2.4 

2.4

2.3 

2.3

2.3

Oct.

2.35

2.25 

2.25

2.3

2.3

2.35

2.35

2.3

2.3

2.3

2.2

2.2

2.2

2.3

2.35

2.35

2.3

2.2

2.2

2.15

2.1 

2.1

2.2 

2.2

2.25

2.2 

2.1

2.2 

2.2

2.15

2.2

Nov.

2.2

2.2 

2.15

2.15

2.15

2.1

2.0

2.1

2.2

2.1

2.1

2.1

2.2

2.2

2.2

2.15

2.1

2.1

2.1

2.15

2.2 

2.2

2.2 

2.15

2.2

2.2 

2.1

2.0 

2.2

2.2

Dec.

......

o Ice conditions January 1 to March 31 and from about November 25 to December 31,1908. 

Rating tables for Blue River near Kremmling, Colo.

APRIL 28 TO JULY 31, 1907, AND APRIL 1 TO AUGUST 31, 1908.

Gage 

height.

Feet. 

2.00

2.10

2.20

2.30

2.40

2.50

2.60

2.70

Discharge.

Sec.-ft. 

50

75

105

140

185

240

310

390

Gage 

height.

Feet. 

2.80

2.90

3.00

3.10

3.20

3.30

3.40

3.50

Discharge.

Sec.-ft. 

470

560

670

800

940

1,100

1,290

1,500

Gage 

height.

Feet. 

3.60

3.70

3.80

3.90

4.00

4.10

4.20

4.30

Discharge.

Sec.-ft. 

1,720

1,950

2,200

2,460

2,730

3,020

3,340

3,690

Gage 

height.

Feet. 

4.40

4.50

4.60

4.70

4.80

4.90

Discharge.

Sec.-ft. 

4,070

4,460

4,850

5,250

5,650

6,050

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during the above periods and is not well defined.

AUGUST 1 TO DECEMBER 10, 1907, AND SEPTEMBER 1 TO NOVEMBER 30, 1908.

Gage

height.

Feet.

2.00

2.10

2.20

2.30

Discharge.

Sec.-ft.

65

95

140 "

195

Gage

height.

Feet.

2.40

2.50

2.60

2.70

Discharge.

Sec.-ft.

260

330

410

500

Gage

height.

Feet.

2.80

2.90

3.00

3.10

Discharge.

Sec.-ft.

600

710

840

990

Gage

height.

Feet.

3.20

3.30

3.40

3.50

Discharge.

Sec.-ft.

1,160

1,360

1,590

1,850

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during the above periods and is not well denned.
124 SURFACE WATER SUPPLY, 1907-8.

Monthly discharge of Blue River near Kremmling, Colo., for 1907 and 1908.

Month.

1907.a

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

1908.6 

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

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

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

Discharge in second-feet.

Maximum.

2,200- 

5.860 

5,450 

1,720 

520 

410 

228

560 

1,400 

4,070 

1,500 

670 

330 

228 

140

Minimum.

275 

800 

1,400 

500 

260 

151 

89

50 

240 

1,100 

390 

240 

168 

95 

65

1

Mean.

919 

3,520 

2,850 

917 

.360 

261 

156 

149

161 

136 

117 

253 

649 

1,940 

916 

393 

232 

164 

117

Run-off 

(total in 

acre-feet).

56,500 

209,000 

175, 000 

56,400 

21,400 

16,000 

9,280 

9,160

553,000

9,900 

7,820 

7,190 

15,100 

39,900 

115,000 

56,300 

24, 200 

13,800 

10, 100 

6,960

306,000

Accuracy.

B. 

B. 

B. 

A. 

B. 

C. 

C. 

D.

D. 

D. 

D. 

C. 

C. 

C. 

C. 

C. 

C. 

C. 

D.

^Discharge estimated for December 11 to 31.1907. Open-channel rating used for November and December 

1 to 10,1907.

6 Ice conditions during January, February, and March, 1908, and discharge estimated. Discharge 

interpolated for days in April, 1908 that have no gage record. Open-channel rating used November, 1908.

EAGLE RIVER BASIN. 

EAGLE RIVER NEAR EAGLE, COLO.

Eagle River rises in the Continental Divide, opposite the headwaters of the Arkansas, flows a little north of west for about 20 miles, 

and then takes a general westerly course to its junction with the 

Grand.

The gaging station was established March 12, 1905, and was discontinued February 10, 1907, in favor of the station at Gypsum. It 

was located at Rule's private road bridge, in T. 5 S., R. 85 W., 2£ 

miles below Eagle, Colo., and below mouth of Brush Creek. The 

record at this point shows practically the same discharge as the station at Gypsum, about 5 miles below, as no tributaries of any 

consequence enter between the two points.

Results obtained at this station were good for open-channel conditions. During the winter, as the river does not freeze over entirely, 

the results were fair.
GBAND EIVEB DBAINAGE BASIN. 125

Daily gage 'height, in feet, of Eagle River near Eagle, Colo.,for 1907. 

[Kenneth Rule, observer.]

Day.

2.........

4.........

5.........

6.........

8.........

Jan.

0.9

.9

.8

1.1

1.0

' 1.0

1.0

1.0

Feb.

0.8

.8

.8

.9

1.1

9

.9

.85

Day.

9........

10........

11........

12........

13........

15........

16........

Jan.

.9

.9

.9

.8

.9

.9

.8

.7

Feb.

.8

.8

Day.

17........

18........

19........

20........

21........

22........

23........

24........

Jan.

7

7

8

8

8

8

8

8

Feb. Day.

25........

26........

27........

28........

29........

30........

31........

Jan.

8

8

8

9

9

9

9

Feb.

Rating table/or Eagle River near Eagle, Colo.,for 1905 to 1907.

Gage 

height.

Feet. 

0.80 

.90

Discharge.

Sec.-ft. 

183 

205

Gage 

height.

Feet. 

1.00 

1.10

Discharge.

Sec.-ft. 

230 

255

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1905-6, and is well denned.

Monthly discharge of Eagle River near Eagle, Colo.,for 1907.

Month.

Discharge in second-feet.

Maximum.

255 

255

Minimum.

163 

183

Mean.

197 

198

Run-off 

(total in 

acre-feet).

12,100 

3,930

Accuracy.

C. 

C.

EAGLE RIVER AT GYPSUM, COLO.

This station, which was established February 7, 1907, to replace 

the station at Eagle, a few miles above, is located at the highway 

bridge one-fourth mile north of the Denver and Rio Grande Railroad 

station at Gypsum. It was abandoned December 31, 1909.

The station has been maintained to obtain data for use in connection with power and irrigation development.

Gypsum Creek, the only tributary of consequence, enters about 

one-eighth mile below the station. The drainage area above the 

mouth of Gypsum Creek is about 800 square miles.

A number of ditches divert water for irrigation, but such ditches 

are small, as the valley is generally narrow.

The stream is frozen along the edges during the winter, and some 

slush and anchor ice also forms, but the river usually remains open 

in midstream.

The location and datum of the chain gage on the highway bridge 

have remained the same during the maintenance of the station.
126 SURFACE WATER SUPPLY, 1907-8.

Channel conditions are permanent, but measurements are only 

fairly satisfactory because of the rough and rocky bottom. Winter 

records are affected by ice and are only fairly accurate.

Discharge measurements of Eagle River at Gypsum, Colo., in 1907 and 1908.

Date.

1907.

April 28........

July 31.. .......

1908.

May8..........

June 19.........

July 7. .........

Hydrographer.

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

C. L. Chatfleld .....................................

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

J. B. Stewart. ......................................

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

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

C. L. Chatfleld .....................................

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

C. L. Chatfleld. ....................................

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

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

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

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

Width.

Feet. 

80

96

96

106

95

86

81

60

90

96

96

95

95

84

85

82

Area of 

section.

Sq.ft. 

141

229

JK1

307

237

194

166

116

99 e;

350

293

230

221

158

149

Gage 

height.

Feet. 

9 e;n

3.50

5.78

4.20

3.35

2.80

2.51

2.38

3.22

4.55

4.15

3.30

3.28

2.70

2.60

2.50

Discharge.

Sec.-ft. 

158

C7Q

2

ocn

1,070

COO

oon

1 9.O

one

CCK

1,410 QCQ

428

459

178

158

a No ice in channel. * Stream open except along edges.

Daily gage height, in feet, of Eagle River at Gypsum, Colo., for 1907 and 1908. 

[J. F. Greenland, observer.]

Day.

1907.a 

1. ..............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9. ..............

10. ..............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19. ..............

20. ..............

21...............

22. ..............

23. ..............

24...............

25...............

26...............

27...............

28. ..............

29. ..............

30. ..............

31...............

Jan. Feb.

2.5

2.4

2.35

2.5

2.45

2.5

2.5

2.5

2.45

2.45

2.45

2.5

2.5

2.55

2.55

2.5

2.5

2.5

2.5

Mar.

2.4

2.5

2.4

2.45

2.5

2.5

2.45

2.45

2.45

2.5

2.45

2.45

2.4

2.4

2.35

2.4

2.5

2.5

2.7

3.0

3.05

3.1

2.95

2.95

2.95

2.95

2.85

2.85

2.8

2.8

Apr.

2.9

2.95

2.95

2.95

3.0

3.0

2.95

3.0

3.2

3.2

3.55

3.7

3.8

3.85

4.0

4.15

4.15

3.7

3.35

3.4

3.35

3.4

3.45

3.35

3.4

3 AC.

3.45

3.5

May.

3.5

3.4

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.55

3 9

3.95

3.85

3.75

3.7

3.85

3.9

4.05

4.85

5.5

5.5

5.4

5.2

4.8

4.4

4.5

4.3

June.

4.2

4.35

4.82

5.55

5.65

5.7

5.6

5.65

5.6

5.3

5.3

5.65

5.82

6.0

6.25

6.3

6.25

6.15

6.25

5.95

6.1

5.85

5.9

6.15

6.0

6.1

6.05

6.05

6.15

July.

6.2

6.1

6.05

6.0

6.0

5.8

5.7

5.8

5.7

5.35

5.6

5.2

4.85

4.7

4.6

4.6

4.55

4.4

4.55

5.1

c OK.

4.7

4.4

4.3

4.2

Aug.

4.15

3.95

3.9

3.85

4.0

3.9

3.8

3.75

3.75

3.7

3.6

3.5

3.4

3.35

3.3

3.3

3.2

3.25

3.35

3.3

3.3

3.3

3.25

3.25

3.3

3.4

3 9

3

0

3.2

3.25

3.45

Sept.

3.4

3.25

3.2

3.1

3.15

3.2

3.2

3.15

3

1

3.05

Q n

3

n

3.0

3.0

3.05

3.2

3

1 C

3.1

3

1

3.0

3

n

3.0

2.9

2.9

3.0

3 1

3 1

3.1

3.1

Oct.

3.1

3.1

3.1

3.1

3.1

3.1

3.3

3.2

3.1

3.1

Q 1

3.05

3.0

3.0

3.0

2 9

2.9

2 9

2.9

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2

0

2

0

2.8

2.8

Nov.

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.7

2.3

2.56

2

K

2.5 9 e:

2.5

2.4

2.4

2.4 9 e:

2.5

2.5

2

C

2

C

2.5

2.5

Dec.

2.5

2.5

2.5

2.4

2.4

2.45

2.5

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.1

2.1

2.05

2.0

2.3

2.5

2.5

2.5

2.5

2.5

2

K

9 S

2.5

2.4

2.4

i Probably occasional slight ice conditions November and December, 1907.
GRAND RIVER DRAINAGE BASIN. 127 

Daily gage height, in feet, of Eagle River at Gypsum, Colo.,for 1907 and 1908 Cont'd.

Day.

1908.o 

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22. ..............

23...............

24...............

25

26...............

27...............

28...............

29...............

30. ..............

31...............

Jan.

2.5

2.5

2.5

2.5

2.55

2.6

2.6

2.6

2.6

2.6

2.75

3.05

3.0

2.95

2.75

2.8

2.85

2.85

2.95

2.85

2.6

2.55

2.55

2.55

2.55

2.55

2.55

2.5

2.5

2.5

2.5

Feb.

2.8

2.75

2.55

2.5

2.45

2.45

2.45

2.45

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.45

2.45

2.45

2.45

2.4

2.3

2.3

2.3

2.3

Mar.

2.3 9 "?

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.25

2.3

2.3

2.3

2.3

2.35

2.4

2.45

2.45

2.45

2.45

2.45

2.4

2.4

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2

C

Apr.

2.5

2.5

2.4

2.4

2.45

2.5

2.65

2.7

2.8

2.9

3.1

3.2

3.3

3.5

3.6

3.6

3.5

3.7

3.8

3.9

3.9

4.0

3.9

3.9

3.6

3.2

3.05

3.05

May.

3.15

3.3

3.6

3.45

3.4

3.4

3.45

3.6

3.9

3.7

3.7

3.65

3.6

3.6

3.5

3.5

3.6

4.45

4.4

4.4

4.3

4.3

4.25

4.15

4.0

4.0

3.7

4.0

4.3

June.

4.25

4.3

4.7

5.35

5.1

5.25

4.8

4.5

4.85

5.35

5.7

5.75

5.4

5.55

5.5

5.3

5.6

5.4

4.6

4.6

4.9

5.45

5.25

5.05

4.9

4.5

4.4

July.

4.35

4.3

4.25

4.15

4.05

4.0

4.0

3.9

4.05

4.1

3.95

3.95

3.95

3.95

4.05

3.95

3.25

3.05

3.3

3.3

3.35

3.25

3.2

3.2

3.2

3.1

3.1

3.1

3.15

3

0C

Aug.

3.4

3.35

3.2

3.1

3.1

3.1

3.1

3.1

3.0

3.0

3.25

3.5

3.35

3.3

3.25

3.15

3.1

3.15

3.2

3.2

3.25

3.25

3.25

3.2

3.1

3.0

3.0

3.0

3.0

3.0

2.95

Sept.

3.0

2.9

2.9

2.8

2.8

2.8

2.75

2.75

2

0

2.8

2.8

2

0

2

O

2

Q

2

0

2

Q

(»)

(»)

( 6 )

( 6 )

2.7

2.7

2.6

2.6

2.6

2.65

2.7

2.65

2.65

2.65

Oct.

2.7

2.7

2.7

2.6

2.6

2.6

2.6

2.6

2.55

2.55

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.55

2.7

2.65

2.65

2.65

2.6

2.6

2.6

2.6

2.55

2.5

2.55

2.55

Nov.

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.4

2.4

2.35

2.4

2.45

2.45

2.45

2.45

2.45

2.5

2.5

2.5

2.4

2.35

2.4

2.4

2.4

Dec.

2.4

2.4

2.4

2.5

2.5

2.45

2.4

2.4

2.4

2.45

2.45

2.5

2.4

2.4

2.4

2.45

2.4

2.25

2.15

2.1

2.1

2.15

2.3

2.7

3.1

3.05

3.05

3.1

3.1

3.05

3.05

«Ice conditions January 11-20 and December 22-31, 1908, and probably slight effect for short intervals 

at other times during the winter periods. 

6 Gage weight missing.

Rating table for Eagle River at Gypsum, Colo.,for 1907 and 1908.

Gage 

height.

Feet.

2.00

2.10

2.20

2.30

2.40

2.50

2.60

2.70

2.80

2.90

Discharge.

Sec.-ft.

60

75

92

111

132

155

181

209

239

272

Gage 

height.

Feet.

3.00

3.10

3.20

3.30

3.40

3.50

3.60

3.70

3.80

3.90

Discharge.

Sec.-ft.

307

346

389

438

491

548

609

674

743

815

Gage 

height.

Feet.

4.00

4.10

4.20

4.30

4.40

4.50

4.60

4.70

4.80

4.90

Discharge.

Sec.-ft.

890

970

1,055

1,145

1,240

1,340

1,445

1,555

1,665

1,780

Gage 

height.

Feet.

5.00

5.20

5.40

5.60

5.80

6.00

6.20

6.30

Discharge.

Sec.-ft.

1,900

2,145

2,395

2,655

2,925

3,210

3,505

3,660

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made during 1907-1909, and is well defined above gage height 2.3 feet.
128 SUBFACE WATER SUPPLY, 1907-8.

Monthly discharge of Eagle River at Gypsum, Colo., for 1907.

Month .

1907.

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

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

1908.

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

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

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

The vear. .....................................

Discharge in second-feet.

Maximum.

168 

346 

1,010 

2,520 

3,660 

3,500 

1,010 

491 

438 

239 

155

181 

239 

155 

890 

1,340 

2,860 

1,190 

548 

307 

209 

155 

155

2.860

Minimum.

122 

122 

272 

464 

1,060 

1,060 

389 

272 

239 

111 

60

155 

111 

92 

132 

368 

1,100 

326 

290 

181 

155 

122 

75

75

Mean.

153 

200 

540 

1,080 

2,890 

2,160 

562 

342 

299 

182 

131

170 

142 

128 

436 

806 

2,010 

675 

375 

226 

176 

146 

119

451

Run-ofl 

(total in 

acre-feet).

6,680 

12.300 

32, 100 

66, 400 

172,000 

133,000 

34,600 

20,400 

18,400 

10, 800 

8,060

515,000

10,500 

8,170 

7,870 

25,900 

49,600 

120,000 

41,500 

23,100 

13,400 

10,800 

8,690 

7,320

327.000

Accuracy.

A.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

C.

C. 

C.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

C.

NOTE. Ice conditions and discharge estimated for January 11-20 and December 22-31, 1908. Openchannel rating applied for remainder of winter periods; effect from ice small. Discharge estimated for 

days in September, 1908, that have no gage record.

ROARING FORK BASIN. 

DESCRIPTION.

Roaring Fork, which enters the Grand at Glenwood Springs, drains 

a large area lying chiefly in Pitkin County and reaching to the Continental Divide. It is one of the largest tributaries of the Grand. 

Frying Pan and Crystal rivers are its most important branches.

ROARING FORK NEAR EMMA, COLO.

This station is located on a steel highway bridge about 1 \ miles below 

Emma, a station on the Aspen branch of the Denver and Rio Grande 

Railroad. It was established July 19, 1908, to obtain run-off data for 

the development of storage and power. (See PI. VII, A.)

Frying Pan Creek joins Roaring Fork about 3 miles above the 

station, and Sopris Creek comes in above the station near Emma. 

The drainage area at the station is more than 500 square miles.

A few small ditches divert water above the station, principally for 

meadow irrigation. The only important power plant above the 

station is that at Aspen, Colo., which generates 1,000 horsepower.

The stream at this point is not so much affected by ice as at other 

stations in that vicinity, and open channel conditions are frequent. 

Slush ice is common.

A staff gage was used until August 2 7,1908, at which time a chain gage 

was established on the bridge with a datum 0.10 foot above that of the 

staff gage. Gage heights are all referred to the datum of the chain gage.
U. S, GEOLOGICAL SURVEY

A. FALLS ON ROARING FORK, COLORADO.

WATER-SUPPLY PAPER 249 PLATE VII

B. DIVERSION DAM OF ANIMAS POWER COMPANY, ON CASCADE 

CREEK ABOVE DURANGO, COLO.
GKAND EIVEE DRAINAGE BASIN. 129

Results at this station are satisfactory except when affected by ice 

conditions during very severe winters.

Discharge measurements of Roaring Fork near Emma, Colo., in 1908.

Date.

Do.........

October 296....

December 2....

Hydrographer.

C. L. Chatfleld .....................................

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

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

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

C. L. Chatfield .....................................

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

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

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

Width.

Feet. 

93

59

83

86

109

107

100

90

80

Area of 

section.

Sq.ft. 

200

172

237

282

314

260

172

164

119

Gage 

height.

Feet.

3.58

4.55

5.28

5.30

4.60

3.95

3.80

3.35

Discharge.

Sec.-ft. 

224

250

614

1.070

1,120

678

372

319

179

a Measurements made at bridge 1 mile below Basalt. t> Open channel; slush ice.

NOTE. All above measurement referred to the same gage.

Daily gage height, in feet, of Roaring Fork near Emma, Colo., for 1908. 

[W. R. Hook, observer.]

Day.

1.. ........

2....

3..........

4..........

5..........

6..........

7..........

8..........

9..........

10..........

11..........

12..........

13..........

14..........

15..........

16..........

July. Aug.

5.5

5. 15

4.8

4.8

4.75

4.65

4.55

4.5

5.0

5.25

4.9

5.05

4.9

4.75

Sept.

4.2

4.1

4.15

4.0

4.0

4.0

3.9

3.9

4.05

4.0

3.95

4.0

4.0

4.0

4.0

Oct.

4.0

4.0

4.0

4.0

4.0

3.95

3.95

3.9

3.9

3.85

3.85

3.85

3.85

3.8

3.8

3.85

Nov.

3 8

3.8

3.8

3.75

3.7

3.7

3.7

3.7

3.7

3.7

3.65

3.7

3.55

3.65

3.55

Dec.

3.4

3.4

3.5

3.6

3.6

3.6

3.4

3.4

3.5

3.6

3.6

3.4

3.4

3.4

3.6

3.6

Day.

17..........

18..........

19..........

20..........

21 ..........

22..........

23..........

24..........

25..........

26..........

27..........

28..........

29..........

30..........

31..........

July.

5.3

5.25

5.2

5.1

5.0

5.0

4.9

4.85

4.8

4.85

4.95

4.85

5.3

Aug.

4.75

4.85

5.0

5.0

4.85

4.8

4.8

4.7

4.7

4.65

4.6

4.5

4.45

4.4

4.3

Sept.

3.95

3.9

3.9

3.9

3.9

3.9

3.9

3.8

3.9

4.05

4.0

4.0

4.0

4.05

Oct.

3.9

3.9

3.95

3.95

3.95

3.9

3.75

3.85

3.9

3.85

3.8

3.85

3.8

Nov.

3.6

3.65

3.6

3.6

3.6

3.6

3.6

3.6

3.5

3.5

3.5

3.5

Dec.

3.6

3.5

3.3

3.3

3.4

3.55

3.8

3.6

3.5

3.6

3.5

3.75

3.65

3.5

3.7

NOTE. Slight ice conditions November 14 to December 31.

Rating table for Roaring Fork near Emma, Colo., for 1908.

Gage 

height.

Feet.

3.30

3.40

3.50

3.60

3. 7J

3.80

Discharge.

Sec.-ft.

176

200

225

254

287

321

Gage 

height.

Feet.

3.90

4.00

4.10

4.20

4.30

4.40

Discharge.

Sec.-ft.

357

393

431

471

512

556

Gage 

height.

Feet.

4.50

4.60

4.70

4.80

4.90

5.00

Discharge.

Sec.-ft.

603

652

705

763

826

894

Gage 

height.

Feet.

5.10

5.20

5.30

5.40

5.50

5.60

Discharge.

Sec.-ft.

967

1,044

1,124

1,206

1,289

1,373

NOTE. The above table is not applicable for ice or obstructed channel conditions. It is based on nine 

discharge measurements made during 1908-9, and is well denned.

Monthly discharge of Roaring Fork near Emma, Colo., for 1908.

Month.

November

The neriod ....................................

Discharge in second-feet.

Maximum.

1,120 

1,290 

471 

393 

321 

321

Minimum.

763 

512 

321 

304 

212 

176

Mean.

918 

790 

388 

332 

266 

234

Run-off 

(total in 

acre-feet).

23,700 

48,600 

23,100 

20,400 

15, 800 

14, 400

146.000

Accuracy.

A. 

A. 

A. 

A. 

A. 

A.

NOTE. Open-channel rating applied November and December; effect from ice Immaterial. 

24439 IRR 249 10 9
130 SURFACE WATER SUPPLY, 1907-8.

ROARING FORK AT GLENWOOD SPRINGS, COLO.

This station, which was established April 6, 1906, to obtain runoff data, valuable because of the opportunities for storage and power 

development offered by the river, is located at the mouth of the 

stream on a single-span wooden road bridge, about 500 feet above the 

junction of Grand River and Roaring Fork, and about four blocks 

west of Grand avenue, Glenwood Springs.

A number of small irrigation ditches divert water from the main 

stream and tributaries. Three important power plants, located on 

Crystal River, Yule Creek, and Maroon and Castle creeks, develop 

about 2,100 horsepower. A number of smaller plants are also in 

operation in this drainage area.

Surface ice rarely forms solid across the river at this station, although slush and anchor ice are common. Extremely high stages of 

Grand River may affect the flow at this station to a small degree.

Neither the location nor the datum of. the chain gage on the bridge 

has. been changed during the maintenance of the station.

As the stream bed is very rough, conditions are unfavorable for 

accurate measurements. The channel is, however, fairly permanent, 

and the results are satisfactory.

Discharge measurements of Roaring Fork at Glenwood Springs, Colo., in 1904, 1901

1908.

and

Date.

1904. 

April 4.........

April 25. .......

May 25.........

June 28.........

1907.

June 22.. .......

July 28.........

1908.

April 12. .......

May 11... ......

JulyS..........

July 20. ........

August 24......

October 28......

Hydrographer.

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

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

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

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

J. B. Stewart. .....................................

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

J. B. Stewart. ......................................

C. L. Chatfleld .....................................

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

C. L. Chatfleld...................................... 

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

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

.....do-.....-.--.......---......--.....-......--....

Width.

Fat.

145

169

155

153

149

140

150

154

167

162

156

155 

149

148

143

Area of 

section.

Sq.ft.

150

794

382

280

209

171

186

292

523

409

302 

185

189

166

Gage 

height.

Feet.

1.40

1.35

5.26

2.50

1.87

1.18

1.25

1.95

2.58

4.10

3.43

2.10 

1.40

1.45

1.20

Discharge.

Sec. -ft. 

457

888

6,680

4,940

885

401

5,730

5,830

3,750

1,530

897

466

396

409

427

947

1,580

3,680

2,880

1,750

1,090 

442

502

465

« Some floating ice. & Fringe of ice along edges of river. 

NOTE. The measurements made in 1904 were not available for publication until the present time.
GRAND RIVER DRAINAGE BASIN. 131

Daily gage height, in feet, of Roaring Fork at Glenwood Springs, Colo.,for 1907 and 1908.

[Celia S. Linsley, observer.]

Day.

1907. 

1...............

2...............

3...............

5...............

6...............

1... ............

%..... ..........

9

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

12...............

13...............

14...............

15...............

16...............

1Q

20. ..............

21...............

22............... 

23...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

1908. 

1...............

2...............

5...............

6...............

7...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19. ..............

20............... 

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31 ...............

Jan.

1.38

1.30

1.25

1.38

1.45

1.45

1.35

1.35

1.40

1.35

1.35

1.30

1.35

1.38

1.35

1.35

1.35

1.35

1.35

1.28

1.22

1.25 

1.30

1.30

1.38

1.40

1.35

1.38

1.35

1.2

1 Q

1.25

1.3

1.25

1.2

1.3

1 *3

1.2

1.2

1.3

1.4

1.2

1.2

1 *3

1.25

1.3 

1.3

1.35

1 9^

1 **

1.3

1.3

1.3

1.3

1.25

1.2

1.2

Feb.

1.35

1.38

1.42 

1.45

1.45

1.38

1.32

1.25

1.32

1.32

1.28

1.30

1.32

1.32

1.28

1.32

1.30

1.38

1.32

1.32

1.35

1.38 

1.42

1.38

1.32

1.35

1.38

1.35

1.1

1.2

1.25

1.25

1.15

1.1

1.2

1.2

1.2

1.25

1.15

1.2

1.15

1.1

1.15

1.2

1.25

1 9

1.2 

1.2

1.2

1 9^

1.3

1.3

1.25

1.2

Mar.

1.32

1.30

1.30 

1.35

1.35

1.35

1.35

1.32

1.30

1.32

1.35

1.38

1.32

1.30

1.32

1.35

1.32

1.58

1.65

1.92

1.98

2.00 

1.88

1.82

1.80

1.88

1 80

1.78

1.68

1.65

1.62

1.25

1.25

1.3

1.4

1.35

1.3

1.2

1.3

1 0

1.3

1.3

1.3

1.4

1.6

1.6

1.5

1.45

1.4

1.45

1.5

1.5

1.5

1.45

1.3

1.4

1.35

Apr.

1.65

1.68

1.78 

1.85

1.92

1.95

1.85

1.82

1.95

2.25

2.68

2.90

3.10

3.28

3.35

3.42

3.18

2.95

2.78

2.58

2.50

2.42

2.40

2.40

2.38

2.42

2.60

2.60

1.2

1.25

1 *?

1.5

1.5

1.5

1 ^

1.6

1.65

1.8

2.2

2.4

o cc

2.7

2

C

9 fi

2.75 

2.8

9 ft

9 Q

9 7

2.45

2.4

2.35

9 "}

2.15

2.1

May.

2.30

2.30

2.20 

2.20

2.15

2.10

2.20

2.20

2.20

2.30

2.50

2.80

2.80

2.60

2.60

2.60

2.75

2.95

3.50

4.00

4.65"

4.80

4.60

4.40

3.95

3.90

3.80

3.70

3.70

3.60

2.2

2.35

2.5

2.4

2.4

2.4

2.5

2.6

2.9

2.7

2.6

2.5

2.45

2.3

9 ^

2.9

0 1

3.6

3.8 

3.4

3.3

** 9

3.25

3.1

3.0

3.0

2.9

2.75

2.65

3.3

June.

3.50

3.80

4.60 

4.60

5.10

5. 15

5.20

5.10

5.10

4.65

5.00

5.15

5.60

5.80

6.05

6.10

6.20

6.10

6.20

5.70

5.60

5.35

5.48

5.85

6.10

6.10

5.88

6.30

3.6

3.55

4.5

4.0

4.1

4.0

0 7

4.3

4.8

4.9

5.4

5.5

4.9

4.9

4.8

4.5

4.25

4.2

4.8

4.85

4.7

4.8

4.75

4.3

4.0

July.

6.28

6.52

6.18 

6.18

6.20

6.20

6.05

6.00

5.68

5.65

5.20

5.10

5.00

5.35

5.05

4.65

4.45

4.48

4.35

4.30

4.38

4.30 

4.20

4.08

4.52

4.85

4.78

4.42

4.18

4.08

4.05

3.95

3.75

3.75

3.85

4.0

3.7

3.65

3.6

3.45

3.45

3.25

3.2

3.25

3.15

3.05

2.85

2.75

2.6 

2.5

2.5

2.4

2.3

2.2

2.2

2.2

2.2

2.3

2.4

2.4

Aug.

3.75

3.60

3.60 

3.60

3.58

3.35

3.38

3.35

3.22

3.08

3.10

2.98

2.95

2.90

2.85

2.88

2.78

2.65

2.75

2.72

2.65

2.52 

2.42

2.30

2.28

2.45

2.32

2.30

2.28

2.25

2.32

2.5

2.6

2.55

2.4

2.2

2.1

2.1

2.05

1.95

2.1

2.35

2.65

2.5

2.45

2.35

2.2

2.2

9 ?

2.4

2.4 

2.4

2.25

2.2

2.15

2.1

2.0

1.95

1.95

1.9

1.8

1.65

Sept.

2.28

2.20

2.18 

2.15

2.18

2.15

2.10

2.10

2.05

1.98

2.00

1.98

1.92

1.98

2.12

2.30

2.18

2.10

2.08

2.00

2.00

1.98 

1.90

1.85

1 80

1 90

1.90

1 80

1 90

1.5

1.5

1.5

1.5

1.45

1.5

1.45

1.45

1.5

1.5

1.5

1.45

1.45

1.4 

1.45

1.45

1.5

1.4

1.5

1.5

1.6

1.6

1.55

1.5

Oct.

1.90

1.88

1.82 

1.85

1 80

1.80

2.05

1.95

1 90

1.85

1.85

1.85

1.85

1.80

1.87

1.81

1 89

1.75

1.70

1.69 

1.70

1.71

1.75

1.70

1.70

1 69

1.65

1.65

1.55

1.5

1.5

1.5

1.5

1.5

1 c

1.45

1.45

1.4

1 J.^

1.45

1.45

1.5

1.5

1.55

1.6 

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.45

1.45

1.4

Nov.

1.65

1.62

1.60

1.58

1.55

1.55

1.58

1.50

1.50

1.45

1.42

1.32

1.40

1.42

1.58

1.48

1.50

1.42

1.40 

1 ^n

1 ^n

1 "34

1 39

1.5

1.45

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1 1

1 9^

1.25

1 9^

1.25 

1.25

1.25

1.25

1 3

1.3

1.3

1.3

1.25

1.25

1.25

Dec.

1.30

1.35

1 9S

1 ^n

1.32

1.35

1.35

1 Qf\

1 00

1.35

1.35

1.30

1.20

1.30

1.12

1.15

1.20

1.30

1.34

i ^^

1 Qfi

1.2

1.15

1 9^

1.3

1.25

1.2

1.1

1.2

1.2

1.2

1.2

1.3

1.35

1.3

1.15

1.0

1.0 

1.2

1.2

1.25

1.25

1.15

1.2

1.2

1.1

1.1

1.1

1.15

XOTK. -< iagt- heights for the winter periods are probably more or less affected by ice conditionb.
132 SURFACE WATER SUPPLY, 1907-8.

Rating tables for Roaring Fork at Glenwood Springs, Colo.

JANUARY 1 TO MARCH 17,1907.

Gage 

height.

Feet. 

1.20

Discharge.

Sec.-ft. 

250

Gage 

height.

Feet. 

1.30

Discharge.

Sec.-ft. 

330

Gage 

height.

Feet. 

1.40

Discharge.

Sec.-ft. 

410

Gage 

height.

Feet. 

1.50

Discharge.

Sec.-ft. 

490

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on two 

discharge measurements made during above period and the form of the following rating curve. It is fairly 

well defined.

MARCH 18 TO NOVEMBER 30,1907, AND APRIL 11 TO NOVEMBER 10,1908.

Gage 

height.

Feet.

1.20

1.30

1.40

1.50

1.60

1.70

1.80

1.90

2.00

2.10

2.20

2.30

Discharge.

Sec.-ft.

300

375

455

540

625

715

805

900

995

1,090

1,190

1,290

Gage 

height.

Feet.

2.40

2.50

2.60

2.70

2.80

2.90

3.00

3.10

3.20

3.30

3.40

3.50

Discharge.

Sec.-ft.

1,395

1,505

1,620

1,740

1,860

1,980

2,100

2,225

2,350

2,480

2,615

2,750

Gage 

height.

Feet.

3.60

3.70

3.80

3.90

4.00

4.10

4.20

4.30

4.40

4.50

4.60

4.70

Discharge.

Sec.-ft.

2,890

3,040

3,190

3,350

3,510

3,680

3,850

4,020

4,195

4,370

4,550

4,730

Gage 

height.

Feet.

4.80

4.90

5.00

5.20

5.40

5.60

5.80

6.00

6.20

6.40

Discharge.

Sec.-ft.

4,920

5,110

5,300

5,700

6,110

6,530

6,950

7,380

7,820

8,270

NOTE. The above table is not applicable for ice or obstructed-channel conditions, 

discharge measurements made during 1907 and 1908, and is well defined.

DECEMBER 1, 1907, TO APRIL 10,1908.

It is based on 13

Gage 

height.

Feet. 

1.10 

1.20

Discharge.

Sec.-ft. 

350 

400

Gage 

height.

Feet. 

1.30 

1.40

Discharge.

Sec.-ft. 

450 

510

Gage 

height.

Feet. 

1.50 

1.60

Discharge.

Sec.-ft. 

580 

650

Gage 

height.

Feet. 

1.70

Discharge.

Sec.-ft. 

730

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on four 

discharge measurements made during February to April, 1908, and is fairly well defined.

NOVEMBER 11 TO NOVEMBER 30,1908.

[The indirect method for shifting channels used.]

DECEMBER 1 TO DECEMBER 31, 1908.

Gage 

height.

Feet. 

1.00 

1.10

Discharge.

Sec.-ft. 

375 

415

Gage 

height.

Feet. 

1.20

Discharge.

Sec.-ft. 

455

Gage 

height.

Feet. 

1.30

Discharge.

Sec.-ft. 

500

Gage 

height.

Feet. 

1.40

Discharge.

Sec.-ft. 

555

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on two 

discharge measurements made 1908-9 and form of the rating curve used December, 1907, to April 10, 1908. 

It is fairly well defined.
GRAND EIVER DRAINAGE BASIN. 133

Daily discharge, in second-feet, of Roaring Fork, at Glenwood Springs, Colo., November 11

to 30, 1908.

Day.

1......................

2......................

3......................

4......................

5......................

6......................

7......................

8......................

9......................

10......................

Nov.

........

Day. Nov.

11 ..................... 460

12..................... 430

13..................... 400

14...... ............... 415

15..................... 390

16..................... 390

17.....................' 395

18..................... 400

19..................... 410

20 ..................... 415

1 

Day.

21......................

22......................

23......................

24......................

25 ......................

26. ................... ..

27......................

28......................

29......................

30......................

31 ......................

Nov.

420

425

430

460

470

480

485

475

470

465

NOTE. These discharges were obtained by the indirect method for shifting channels. 

Monthly discharge of Roaring Fork at Glenwood Springs, Colo., for 1907 and 1908.

Month.

1907.

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

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

1908.

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

Discharge in second-feet.

Maximum.

450 

450 

995 

2,640 

5,300 

8,040 

8,000 

3,120 

1,290 

1,040 

670 

486

8,040

510 

450 

650 

1,980 

3,190 

6,320 

3,510 

1,680 

625 

625 

540 

555

6, 320

Minimum.

266 

290 

330 

670 

1,090 

2,750 

3,600 

1,240 

805 

670 

375 

360

266

400 

350 

400 

400 

1,190 

2,620 

1,190 

670 

455 

455 

390 

375

350

Mean.

368 

367 

554 

1,490 

2,410 

6,270 

5,500 

1,980 

1,030 

802 

504 

453

1,810

433 

400 

500 

1,160 

1,870 

4,380 

2,170 

1,210 

534 

530 

447 

455

1,180

Run-ofl 

(total in 

acre-feet).

22,600 

20,400 

34,100 

88,700 

148,000 

373,000 

338,000 

122,000 

61,300 

49,300 

30,000 

27,900

1,320,000

26, 600 

23, 000 

30,700 

69, 000 

115,000 

261,000 

133, 000 

74, 400 

31,800 

32,600 

26,600 

28, 000

852,000

Accuracy.

C. 

B. 

B. 

B. 

B. 

A. 

A. 

A. 

A. 

A. 

A. 

B.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

C. 

B.

NOTE. Discharge for November 11-30,1908, determined by indirect method for shifting channels. 

FRYING PAN RIVER AT BASALT, COLO.

This station, which was established July 19, 1908, to obtain run-off 

data necessary for studies of storage and power possibilities, is located 

at the wooden highway bridge, about 100 yards from the Colorado 

Midland depot and about 75 yards downstream from a concrete arch 

bridge in the town of Basalt.

The station is near the mouth of the stream below all tributaries of 

importance, and the records show the total run-off from the drainage 

basin.
134 SURFACE WATER SUPPLY, 1907-8.

Diversions above are limited to ditches used for meadow irrigation. 

Power and storage possibilities are good.

Severe ice conditions prevail during the winter months, and gage 

readings are at times distorted by the backwater caused by the freezing of the river below. Slush ice is also a disturbing factor.

The location and datum of the staff gage at the bridge have 

remained unchanged during the maintenance of the station.

The accuracy of the measurements is affected by the roughness of 

the stream bed and the high current velocities during flood periods.

Discharge measurements of Frying Pan River at Basalt, Colo., in 1907 and 1908.

Date. Hydrographer.

1907. 

December 19a.. R. I. Meeker.

1908.

July 19

October 29.. ...

December2<\ ..

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

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

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

C. L. Chatfield ....................................

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

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

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

Width.

Feet.

54

45

45

45.5

48.5

59.8

46.5

46. 5

45.5

46

Area of 

section.

Sg. ft.

166

60

72

79

108

122

90

75

75

88

Gage 

height.

Feet.

1.33

1.52

2.25

2.40

1.80

1.46

1.40

2.00

Discharge.

Sec.-ft.

63

55

56

87

243

318

133

65

76

53

a Through ice 100 feet above concrete bridge. & Wading measurement. r lce conditions.

Daily gage height, in feet, of Frying Pan River at Basalt, Colo., for 1908. 

(.1. G. Ould. observer.]

Day.

l. ... ....

o

3.... ...

4. ........ i^

0.........

8.. .. ... w'.'.'.'... n '.'.'..

12..........

13... .......

14.. ........

15..........

July.

..

Aug.

2.35 

2.35

2.15-

2.05

2.0

2.0

2.0

2 0 

2.0 

2.0

2.15

2.35

2 1

2.15

2.1

Sept.

1.75 

1.75

1.7

1 7

1.7

1.7

1.6

1.6 

1.6 

1.65

1.65

1.6

1.65

1.7

1.7

Oct.

1.55 

1.55

1.55

1.55

1.5

1.5

1.5

1.5 

1.5 

1.5

1.5

1.5

1.5

1 5

1.5

Nov.

1.5 

1.5

1.5

1.4

1 5

1.5

1.45

1.^5 

1.45 

1.5

1.5

1.4

1.45

1.45

1.45

Dec.

1.6 

2.0

2.05

1.6

1.0

1.0

1.0

1.5 

2 05 

2.1

2.15

2.05

2.25

2.25

2.3

Day.

16... 

17.... ....

18.. ..

19... .

20.... .

21.... '»

23 . . 

24....

26.. ....

27.... ...

28...... ..

29

30....

31....

July.

2.4

2.25

2.25

2.2

2.1 

2 1 

2.1

2.2

2 1

2.0

2.15

2.0

2.15

Aug.

2.05 

2.1

2.0

2.05

2.1

2 0

2 0

2.0 

2.0

2.0

2.0

2.05

1.95

1.75

Sept.

1.65 

1.65

1.6

1.6

1.5 

1.5

1.7

1.6

1.65

1.6

Oct.

1.5

1 5

1 5

1.55

1.5

1.5

1.5 

1 5 

1.5

1 5

1.5

1.5

1.4

1.45

1.5

Nov.

1.45 

1.45

1.45

1.45

1.45

1.4 

1.4

1.4

1. 4

Dec.

2.45 

2.7

2.7

2 9

3.6

3. 1 

3.0

9 9

3.4

3.4

3.45

NOTE. Ice conditions November 30 to December 31.

Rating table for Frying Pan River at Basalt, Colo., for 1908.

Gage

height.

Feet.

1.40

1.50

1.60

Discharge.

Sec.-ft.

68

83

99

Gage

height.

Feet.

1.70

1.80

Discharge.

Sec.-ft. : 118

139

1. 90 162

Gage

height.

Feet.

2.00

2.10

Discharge.

Sec.-ft.

187

214

2. 20 I 242

Gage Disheight.

Feet.

2.30

charge.

Sec.-ft.

272

2. 40 ' 302

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on seven 

discharge measurements made during 1908 and one in 1909, and is fairly well defined.
GRAND RIVER DRAINAGE BASIN.

Monthly discharge of Frying Pan River at Basalt, Colo., for 1908.

135

Month.

July 19-31 ...........................................

Discharge in second-feet.

Maximum.

302

287 

128 

91 

83

Minimum.

187 

128 

83 

68 

60

Mean. 

 

230 

202 

105 

83.5 

74.0 

56.9

|

Run-off 

(total in 

acre-feet).

5,930 

12,000 

6,250 

5,130 

4,400 

3,500

37,200

Accuracy.

A. 

A. 

A. 

A. 

A. 

D.

NOTE. Discharge estimated November 30 to December 31 because of ice conditions. 

CRYSTAL RIVER NEAR CARBONDALE, COLO.

This station, which was established July 18, 1908, to obtain run-off 

data valuable because of the great power and storage possibilities on 

the stream, is located on a single-span highway bridge 150 feet above 

a section house, at a railroad point known as Sewell on the Redstone 

branch of the Denver and Rio Grande Railroad. It is about 5 miles 

above Carbondale. The drainage area of the river below the mouth 

of Thompson Creek is about 300 square miles.

No important tributaries enter below the station, but Thompson 

Creek comes in a short distance above.

Several irrigation ditches, with a combined maximum capacity of 

probably 100 second-feet, divert water above. The following ditches 

were diverting water above the station on July 18, 1908: Sweet ditch, 

estimated discharge, 15 second-feet; Grubb ditch, estimated discharge, 

12 second-feet; Big Four ditch, estimated discharge, 8 second-feet.

The fall, run-off, and storage possibilities, however, make this 

essentially a power stream, especially on the upper reaches. Present 

power plants above the station generate about 1,150 horsepower.

Ice conditions are severe during the winter months and prevent 

using open channel methods of calculating the discharge.

No change has occurred in either location or datum of the staff 

gage at the bridge during the maintenance of the station.

Except as affected by ice, the results at this station are satisfactory.

Discharge measurements of Crystal River near Carbondale, Colo., in 1908.

Date.

1908.

July 18.........

Hydrographer.

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

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

Width.

Feet. <\\

55

52

53

52

Area of 

section.

Sq.ft.

180

198

160

i26

138

119

Gage 

height.

Feet. 

3.00

3.02

1.80

1.95

1.80

Discharge.

Sec.-ft. 

463

514

94

130

101
136 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Crystal River near Carbondale, Colo.,for 1908. 

[Wm. Sutton and Matt Taylor, observers.]

Day.

1. .........

2

3..........

4..........

5. .........

0..........

7. .........

8..........

9..........

10..........

11..........

12..........

13..........

14........ .

15..........

July. Aug.

3.05

3.2

2.85

2.75

2.7

2.7

2.7

2.55

2.5

2.45

2.95

2.85

2. S

2.85

2.85

Sept.

2.15

2.1

2.1

2.15

2.05

2.0

1.95

1.9

2.1

2.1

2.15

2.1

2.0

1.95

1.9

Oct.

2.0

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.8

1.8

1.9

Nov.

1.95

1.95

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.95

1.9

1.9

1.8

1.8

1.85

Dec.

1.7

1.7

1.7

1.8

1.9

1.8

1.8

1.75

1.7

1.7

1.6

1.6

1.6

1.5

1.45

Day.

16..........

17..........

18..........

19..........

20..........

21..........

22..........

23..........

24.........

25..........

26..........

27..........

28..........

29..........

30..........

31..........

July.

3.0

3.05

2.95

2.95

2.95

2.75

2.75

2.7

2.8

2.75

2.75

2.8

2.85

Aug.

2 7

2.6

2.8

2.45

2.45

2.35

2.25

2.25

2.15

Sept.

1.9

1.85

1.85

1.9

1.8

1.8

1.8

2.0

2.1

9 n

2.0

2.0

2.0

Oct.

2.05

2.1

2.15

9 1 ^

2.1

2.1

2.1

2.0

2.0

2.0

1.9

1.9

2.0

2.05

2.05

1.95

Nov.

1.8

1.75

1.7

1.7

1.75

1.85

1.85

1.8

1.7

Dec.

1.9

1.7

1.9

2.0

2.1

2.15

2.2

2.2

2.0

1.9

1.75

1.7

Rating table for Crystal River near Carbondale, Colo., July 18 to December 31, 1908.

Gage

height.

Feet.

1.40

1.50

1.60

1.70

1.80

Discharge.

Sec.-ft.

50

61

73

87

103

Gage

height.

Feet.

1.90

2.00

2.10

2.20

2.30

Discharge, i

Sec.-ft.

121

141

164

189

216

Gage

height.

Feet.

2.40

2.50

2.60

2.70

2.80

Discharge.

Sec.-ft.

245

278

315

357

403

Gage

height.

Feet.

2.90

3.00

3.10

Discharge.

Sec.-ft.

451

503

559

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on six 

discharge measurements made during 1908, and one in 1909, and is well defined between gage heights 1.7 

feet and 3.0 feet.

Monthly discharge of Crystal River near Carbondale, Colo., for 1908. a

Month.

The period

Discharge in second-feet.

Maximum.

531 

617 

176 

176 

141 

189

1

Minimum.

357 

176 

103 

103

87 

56

Mean.

428 

342 

138 

135 

114 

107

Run-off 

(total in 

acre-feet).

11,900 

21,000 

8,210 

8,300 

6,780 

6,580

62,800

Accuracy.

A. 

A. 

A. 

A. 

A. 

B.

a These estimates do not include ditch diversion above the gaging station. See description.

GUNNISON RIVER DRAINAGE BASIN. 

DESCRIPTION.

Gunnison River is formed in Gunnison County,. Colo., by the 

union of East and Taylor rivers, two streams that have their origin 

among the snow-covered peaks and on the slopes of the Continental 

Divide in the northeastern part of the county, descend through narrow mountain valleys, and unite about 12 miles above Gunnison.
GRAND RIVER DRAINAGE BASIN. 137

From the junction of these rivers the Gunnison flows west and southwest to the point where it enters Grand River at Grand Junction, in 

the central part of Mesa County, Colo.

The upper course of the river lies through a broad, mountainous 

valley, but near the mouth of Lake Fork the valley narrows and the 

river enters Black Canyon of the Gunnison, through which it winds 

in a tortuous course for 56 miles between granite walls that rise precipitously 3,000 feet above the water's edge. (See PL VIII, A.} A 

short distance below the mouth of North Fork, the largest tributary 

of the river, the canyon walls break abruptly, and the valley is broad 

and fertile. Below Delta the river enters another narrow canyon, 

with walls averaging 800 feet in height, and this continues irregularly 

to Grand Junction, a few tracts of narrow bottom land lying between 

the channel and the canyon walls.

The soil of the lower valleys is chiefly adobe, and the higher mesas 

have large content of gravel and sand. Groves of quaking aspen, interspersed with large, open grazing plots, cover broad areas of this 

plateau region. Forests of pine and aspen occur on the top of the 

Grand Mesa, with pinon pines and cedars along the foothills. In the 

valleys chico and sagebrush form the controlling vegetation, except 

along the streams, which are bordered to some extent by cottonwood, 

willow, and undergrowth.

The chief tributaries of the Gunnison are Ohio, Tomichi, Lake Fork, 

and Cimarron creeks, and Smith, North Fork, and Uncompahgre 

rivers, North Fork being the largest.

North Fork rises in the Huntsman Hills, 20 miles south of Glenwood Springs, flows in a general south and southwesterly course, 

and unites with the Gunnison about 8 miles west of Hotchkiss. 

The drainage area is highly mountainous, except for a small portion 

which lies below Paonia, extreme points reaching an altitude of 13,000 

feet. The mesa lands at the lower end of the valley stand 5,500 

feet above sea level. The higher peaks are formed of granite rocks, 

but lower down sedimentary formations occupy at least 80 per cent 

of the area of the basin. The mountains are forested and the mesa 

lands are covered with sagebrush. All the tillable lands of the North 

Fork and its tributaries have been brought under cultivation, and 

irrigation is practiced to such an extent that the entire flow is needed 

for existing systems.

Uncompahgre River, the principal tributary of the Gunnison from 

the south, rises among the snowy peaks of the highly serrated Uncompahgre Mountains and flows a little west of north to its junction 

with the Gunnison at Delta. The basin embraces a mountainous 

plateau and valley area of 1,130 square miles, oblong in shape, the 

width increasing slightly at the lower end. The mountain area 

occupies but a small part of the basin, but contributes the perennial
138 SURFACE WATER SUPPLY, 1907-8.

\

waters of the stream. The plateau area is greatest in extent and 

borders the valley on both sides, the larger Uncompahgre Plateau 

lying to the southwest. Escarpments are conspicuous features of 

this plateau. The relief features are terraced mesas flanked by 

shale buttes and ridges, trenched by deep, narrow canyons. Uncompahgre Valley proper begins at a point near Eldredge siding, on the 

Denver and Rio Grande Railroad.

The other tributaries of the Gunnispn need not here be described. 

Ohio, Tomichi, Lake Fork, and Cimarron creeks are perennial streams, 

but almost their entire volume is diverted for irrigation during the 

growing season, so that very little water reaches the Gunnison except 

at times of heavy storms or during spring floods.

Precipitation records for the Gunnison basin are meager. Those 

which exist show a range from 9 inches in the plateau region to about 

25 inches in the mountains.

The run-off of the Gunnison drainage basin is protected to a large 

extent by four forest reserves, which have a total area of about 5,700 

square miles, of which approximately 3,800 square miles are located 

within the basin. About 65 per cent of this area is in standing timber, the remainder being classified as sagebrush, barren and burned. 

Investigation of the headwaters of East River and other tributaries 

in Gunnison County several years ago showed that many of the hills 

had been almost entirely denuded of their timber, a discovery to 

which may be attributed the setting aside of the areas as forest 

reserves.

Along Gunnison River proper, above the mouth of Lake Fork, a 

number of ditches divert water for meadow irrigation, and irrigation 

is extensively practiced in the vicinity of delta. The largest irrigated area in the Gunnison drainage is the Uncompahgre Valley. In 

addition the lands being irrigated by large private ditches this 

valley contains about 150,000 acres, which are being reclaimed under 

the Uncompahgre project of the United States Reclamation Service. 

The greater part of the water for this land will be diverted from Gunnison River by means of the Gunnison tunnel, which has a capacity 

of about 1,300 second-feet. The present water rights consume the 

normal flow of Uncompahgre River, and the Uncompahgre Valley 

project will divert all the available water from Gunnison River during 

normal stages.

The country is not adapted for large reservoirs, the meadows having too much fall and the valleys being too narrow, so that construction would be expensive in proportion to reservoir capacity. However, a large number of small reservoirs exist on the Gunnison and its 

tributaries, which can be advantageously utilized for power.

Power plants at present in operation in this basin develop about 

2,200 horsepower, and unutilized possibilities are very great. The
U. S. GEOLOGICAL SURVEY

WATER-SUPPLY PAPER 249 PLATE VIII

A. TORRENCE FALLS, GUNNISON RIVER CANYON, COLORADO. B. GUNNISON RIVER FROM GAGING STATION, SHOWING EAST END OF GUNNISON TUNNEL UNCOMPAHGRE PROJECT, COLORADO.
GRAND RIVER DRAINAGE BASIN. 139

fall along some of the streams is heavy, averaging 50 to 150 feet to 

the mile. Along the Uncompahgre, from its source to the 8,000-foot 

contour, the fall is almost 300 feet to the mile. At the present time 

the waters in this basin are being used chiefly for domestic purposes 

and irrigation. By utilizing all the available storage it would theoretically be possible to develop about 200,000 horsepower. Along 

the South canal of the United States Reclamation Service, which 

receives the water from the Gunnison tunnel and carries it into 

Uncompaghre River, a series of drops will make possible the 

development of from 5,000 to 10,000 horsepower.

But two gaging stations were maintained previous to 1900, but since 

that year a number have been established and discontinued. The 

records, as a rule, cover about three-year periods, and show that 1904 

was the driest and 1907 the wettest year. By comparison with other 

drainage basins adjacent to the Gunnison, however, it is evident that 

1902 was a drier year than 1904.

GUNNISON RIVER AT RIVER PORTAL, COLO."

This station, which was established April 7, 1905, to determine the 

water supply available for Gunnison tunnel for the United States 

Reclamation Service, replaced the station located at Cimarron, about 

12 miles above. It is about 100 yards above the portal of Gunnison 

tunnel (PL VIII, B) and is about 21 miles northeast of Montrose. The 

data are valuable also because of the great power possibilities on the 

upper river.

The station is about 8 miles below the mouth of Crystal Creek, and 

is above North Fork and Uncompahgre River, the two most important tributaries.

A number of small ditches divert water for meadow irrigation 

above the station. The largest diversion along the river, and also in 

Colorado, is the recently completed Gunnison tunnel, with a capacity 

of about 1,300 second-feet, which diverts the water from the Gunnison 

into the Uncompahgre Valley, where it will be used for irrigation. 6

Ice covers the river for about four months each year and attains a 

thickness of 1 to 2 feet. No winter records of discharge have been 

obtained.

Neither the location nor datum of the staff gage has been changed 

during the maintenance of the station. Discharge measurements are 

made from a cable a few feet downstream from the gage.

Fairly good results have been obtained at this station during the 

open seasons.

This station is maintained under the direction of the United States 

Reclamation Service.

a This station was referred to in previous reports as at east portal of Gunnison tunnel. 

£> The Gunnison tunnel and Uncompahgre project are described in the report of the United States Reclamation Service.
140 SURFACE WATER SUPPLY, 1907-8. 

Discharge measurements of Gunnison River at River Portal, Colo., in 1907 and 1908.

Date.

1907.

Do.........

April 12. .......

April 22. .......

JulyS..........

July 12.........

July 16.........

1908.

April 18........

April 28........

July 22.........

Hydrographer.

T. I. Phelps. .......................................

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Width.

Feet.

170

172

155

180

191

204

192

179

163

148

160

153

183

149

Area of 

section.

Sq.ft. 

906

880

855

847

1,500

1,530

1,210

1,740

1,930

2,340

1,990

1,770

1,710

1,280

704

939

1,260

1,090

1,700

996

Gage 

height

Feet. 

5.62

5.50

5.35

5.27

9.55

7.68

10.85

11.90

13.55

12.20

11.10

10.40

8.25

6.32

8.48

7.23

11.00

6.80

Discharge.

Sec.-ft.

576

480

463

4,160

8,700

11,400

8,960

6,780

2,880

1,710

2,980

6,630

Dailij gage height, in feet, of Gunnison River at River Portal, Colo., for 1907 and 1908.

[T. I. Phelps, observer.]

Day.

1907. 

1.......... ...... ...........

2............................

3............................

5...........................

8...........................

9...........................

10. ..........................

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

12...........................

13...........................

14..... ....................

15..........................

16. ..........................

17...........................

18...........................

19...........................

20...........................

21...........................

22...........................

23...........................

24...........................

25...........................

26...........................

27

28...........................

29. ..........................

30...........................

31...........................

Mar.

5.60

5 68

5.65

5.55

5.50

5.50

5.55

5.50

5.35

5.30

5.40

5.85

6.30

6.90

7.50

7.50

7.30

7.00

6.85

6.80

6.85

6.75

6.60

6.35

6.20

6.30

Apr.

6.30

6.30

6.60

6.85

7.00

6.90

6.65

6.60

6.85

7.40

8.48

9.38

9.52

9.40

9.62

9.48

9.92

8.55

8.30

7.95

7.60

7.66

7.69

7.65

7.85

7.88

7.88

7.92

8.10

7.98

May.

7.88

7.75

7.75

7.65

7.55

7.65

7.70

7.65

7.68

7.70

8.10

8.68

8.75

8.45

8.20

8.20

8.60

9.05

9.85

11.05

12.10

12.30

12.55

12.05

11.35

10.85

10.60

10.40

10.20

10.15

10.05

June.

9.80

10.20

11.70

11.95

12.45

12.95

12.90

12.75

12.50

12.00

11.90

12.40

12.85

13.10

13.45

13.40

13.55

13.45

13.50

13.30

12.85

12.55

12.50

12.70

12.95

13.15

13.20

13.05

13.20

13.40

July.

13.45

13.30

12.90

13.00

12.95

12.65

12.45

12.10

11.70

11.50

11.45

11.00

10.80

11.25

11.10

10.45

10.10

9.75

9.55

9.40

9.45

9.40

9.30

9.20

9.25

9.75

10.20

9.70

9.25

8.95

8.70

Aug.

8.60

8.70

9.05

8.75

8.65

8.35

8.25

8.20

8.10

8.05

7.85

7.80

7.85

8.25

8.10

7.95

7.45

7.55

7.65

7.50

7.35

7.15

6.95

7.20

7.20

7.10

7.20

7.20

7.30

7.60

Sept.

7.25

7.05

6.90

6.80

6.75

6.70

6.65

6.60

6.60

6.45

6.40

6.40

6.50

6.80

6.80

6.55

6.50

6.50

6.50

6.50

6.40

6.30

6.30

6.20

6.25

6.25

6.25

6.20

6.20

Oct.

6.20

6.20

6.20

6.20

6.15

6.15

6.35

6.45

6.50

6.35

6.30

6.20

6.20

6.15

6.05

6.00

6.00

6.00

6.00

6.00

6.20

6.10

6.10

6.10

6.10

6.05

6.00

Nov.

6.00

6.00

5.95

5.85

5 90

5.90

5.90

5.90

5.90

5.58

5.15

5.30

5.40

5.85

5.80

5.80

5.50

5.30

5.20
GEAND EIVEE DBAINAGE BASIN. 141

Daily gage height, infeet, of Gunnison River at River Portal, Colo., for 1907 and 1908 Con.

Day.

1908. 

1...........................

2

S. ............ ..............

4.. .........................

5...........................

6.. .........................

8...........................

9...........................

10...........................

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

12. ..........................

13...........................

14. ..........................

15...........................

16...........................

17...........................

18...........................

19...........................

20. ..........................

21...........................

22...........................

23...........................

24...........................

25............................

26...........................

27. ..........................

28. ..........................

29...........................

30. ..........................

31...........................

Mar.

::::::::

Apr.

5.9

6.0

6.0

6.2

6.25

6.4

6.3

6.3

6.3

6.4

6.75

6.95

7.3

7.85

8.35

8.45

8.4

8

£

8.35

8.2

8.25

8.5

8.5

8.2

7.25

7.25

7.2

7.1

May.

7.25

7.55

8.2

7.9

7.55

7.6

7.7

8.05

8.45

8.35

7.95

7.9

7.7

7.7

7.65

7.6

7.9

8.25

8.7

9.2

8.85

8.9

8.7

8.65

8.55

8.5

8.5

8.2

7.95

7.95

8.4

Tune.

8.85

9.05

9.55

9.7

9.7

9.4

9.15

9.25

10.25

11.1

10.9

10.8

11.0

11.0

10.8

11.1

10.7

9.85

9.25

9.45

9.7

10.1

9.95

10.1

10.1

July.

9 0

8.65

8.6

8.5

8.4

8.2

8.2

8.0

7.9

8.0

7.9

7.85

7.75

7.95

7.75

7.5

7.2

7.05

6.95

6.82

6.7

6.72

6.75

6.6

6.6

6.55

6.6

6.8

Aug.

8.0

8.0

7.5

7.3

7.3

7.0

7.0

6.8

6.7

7.3

7.3

7.1

6.9

6.8

7.1

7.1

7.4

7.2

7.1

6.9

6.7

6.6

6.5

6.5

6.4

6.4

6.3

6.2

6.1

Sept.

6.1

fi.O

5.7

5.6

5.6

5.6

5.6

5.7

5.6

5.6

5.9

5.8

5.8

5.8

5.7

5.7

5.6

5.6

5.6

5.6

5.6

5.6

5.7

5.8

5.8

5.7

5.7

Oct.

5.7

5.7

5.7

5.7

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.7

5.7

5.7

5.6

5.6

5.6

5.5

5.5

5.5

5.5

5.5

5.6

Nov.

5.6

5.6

5.5

5

r

5.5

5.5

5.4

5.4

5.3

Rating table for Gunnison River at River Portal, Colo., for 1907 and 1908.

Gage 

height.

Feet.

5.10

5.20

5.30

5.40

5.50

5.60

5.70

5.80

5.90

6.00

6.10

6.20

Discharge.

Sec.-ft.

395

435

480

525

575

630

685

745

810

880

Gage 

height.

Feet.

6.30

6.40

6.50

6.60

6.70

6.80

6.90

7.00

7.10

7.20

950 ; 7.30

1,020 7.40

Discharge.

Sec.-ft.

1,090

1,165

1,240

1,315

1,395

1,475

1,555

1,640

1,725

1,810

1,900

Gage 

height.

Feet.

7.50

7.60

7.70

7.80

7.90

8.00

8.20

8.40

8.60

8.80

9.00

1,990 ' 9.20

Discharge.

Sec.-ft.

2,080

2,170

2,260

2,350

2,445

2,540

2,730

2,930

3,140

3,360

3,580

3,805

Gage 

height.

Feet.

9.40

9.60

9.80

10.00

10.20

10.40

10.60

10.80

11.00

12.00

13.00

14.00

Discharge.

Sec.-ft.

4,035

4,270

4,540

4,850

5,170

5,510

5,860

6,230

6,620

8,830

11,280

13,880

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on discharge measurements made in 1907 and 1908 and is fairly well defined. Owing to shifting conditions of 

flow it may not be strictly applicable at times during the above period.
142 SURFACE WATER SUPPLY, 1907-8.

Monthly discharge of Gunnison River at River Portal, Colo.,for 1907 and 1908.

Discharge in second-feet.

Month.

Maximum. Minimum. Mean.

Run-off 

- (total in i acre-feet). racy'

,Accu1907.

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

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

1908.

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

.......... 10,200

. ... .... 12,400

........... 3,640

............ 880

i

........... 3,030

............ 3,800

............ 6,830

............ 3, 580

............ 2, 540

............ i 950

............ 685

............ 630

480

1 090

2,120

3, 250

1,600

880

415

810

1,860

3,420

950

630

575

480

4,400

2,400

1.310

986

703

1,940

2 690

4,880

2,170

1,630

698

634

553

148,000

78 000

60^ 600

09 inn

115,000

290,000

100, 000

39,000

14, 300

898,000

B.

B

B.

B

B1

B,

R,

r.

B

r

r

r.

r

UNCOMPAHGRE RIVER NEAR OURAY, COLO.

During January, February, and March, 1908, records of flow of 

Uncompahgre River were tftken at the power plant of the Ouray 

Electric Power and Light Company, about 1 mile south of Ouray, 

Colo. These records were taken by Wheeler & Whinner ah, in the 

interests of the company, and they have furnished them to the 

United States Geological Survey for publication.

A dam built of plank, with a weir opening 10 feet wide, was used, 

and the depth of the water over the weir in inches was measured at 

a point about 6 feet back from the crest.. The discharge data were 

computed practically on the basis of a standard Francis weir with 

end contractions.

Daily discharge, in second-feet, of Uncompahgre River near Ouray, Colo., for 1908.

Day.

3

4......

5......

7......

10......

Jan.

........

16 2

 

Feb.

13.o

14 9

13.9

17.1

13.1

]4. 1

Mar.

14.5

12. S

13 3

12.8 1 4 Q

14.7

14.3

Day.

11......

12......

14......

15......

16......

18......

19

20

Jan.

15.4

a 14. 6

13 3

13.1

13.5

Feb.

14.5

14.3

13.1

12.8

12 9

a 12. 9

13.5

12.8

Mar.

15.1

13.9

19 6

21.3

o30.8

40.4

26.4

Day.

21......

22......

23......

24......

25......

26......

27......

28......

29......

30......

31......

Jan.

15.1

ol5.1

15.1

14.5

a 14.0

a 13. 4

12.9

13.1

14.5

17.3

15.1

Feb.

13.1

13.9

15.8

13.5

15.4

15.4

14.7

12.4

Mar.

a Interpolated.
GRAND ELVER DRAINAGE BASIN. 143

Monthly discharge of Uncompahgre River near Ouray, Colo.,for 1908. 

[Drainage area, 45 square miles.]

Month.

Discharge 

fet

Mean.

in secondit.

Per

square 

mile.

Run-off.

Depth in 

inches on 

drainage 

area.

Total in 

acre-feet.

February.. 

March 1-17.

13.9

18.1

709

800

610

UNCOMPAHGRE RIVER AT FORT CRAWFORD, COLO.

This station, which was established October 2, 1907, to obtain 

information concerning the water supply above the principal diversions in the Uncompahgre Valley, replaces the station near Colona, 

which was established August 10, 1903. Its present location is at a 

highway bridge across Uncompahgre River about one-half mile west 

of Port Crawford, in sec. 36, T. 48 N., R. 9 W. Records were discontinued at the end of the season of 1908.

The station is located just below the mouth of Horsefly Creek. A 

number of large private irrigation ditches divert water above this 

station. Existing power plants generate about 1,800 horsepower. 

Opportunity for extended power development is found on the headwaters.

Thick ice forms along the edges of the river during the winter 

months. The channel remains open at the station, but slush ice 

affects the accuracy of the results at times. The channel scours during high stages and silts during periods of low water.

-On June 21, 1908, the rod gage, which was established October 2, 

1907, was washed out. On July 7, 1908, a temporary chain gage was 

installed. The zero of this gage was placed 1.95 feet below the zero 

of the rod gage. On July 23, 1908, a permanent rod gage was installed, 

the zero of which corresponds to 0.70 foot on the first rod gage, and 

to 2.65 feet on the chain gage. Gage readings for 1908 have been 

referred to the datum of the last gage.

Records during June and July, 1908, are unsatisfactory, because 

of the constant shifting of the channel.

This- station was maintained under the supervision of the United 

States Reclamation Service.
144 SURFACE WATER SUPPLY, 1907-8.

Discharge measurements of Uncompahgre River at Fort Crawford, Colo., in 1908.

Date.

April 18. .......

Mayl..........

July 2. .........

July 21. ........

Hydrographer.

L. J. Foster ........................................

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

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

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

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

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

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

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

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

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

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

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

Width.

Feet. 

45

48

47

46

49

61

58

56.5

57

58

55

53

Area of 

section.

Sq.ft. 

63

87

82

73

104

216

111

100

90

91

40

23

Gage 

height.

Feet. 

1.70

2.20

1.96

2.78

3.30

a 2 64

2.40

2.00

1.80

1.50

Discharge.

Sec.-ft. 

104

216

156

451

1,030

524

477

373

3Sfi

116

52

"Gage height referred to chain gage from existing reference points. Later reduced to rod gage. See 

note.

NOTE. Gage heights of measurements at this station made prior to July 23, 1908, have been reduced to 

datum of gage established on that date.

Daily gage height, in feet, of Uncompahgre River at Fort Crawford, Colo., for 1908. 

[Roy Humphrey, observer.]

Day.

1...........................

2...........................

3............................

6...........................

7....................... ...

g

10. .........................

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

12. ..........................

13...........................

14...........................

15..........................

16...........................

17. ..........................

18....... ....................

19...........................

20...........................

21...........................

22. .........................

23...........................

25...........................

27...........................

28

29...........................

30. ..........................

Mar. Apr.

1.85

1.9

1.9

1 9

1.95

1.9

1.95

1.95

2.0

2.05

2.1

2.25

2.25

2.35

2.5

2.5

2.4

2.4

2.55

2.6

2.55

2.65

2.7

2.6

2.45

9 SS

2.35

2.4

1.9

May.

2.15

2.1

2.2

2.35

2.3

2.3

2.4

2.35

2.3

2.3

2.4

2.3

2.4

2.2

2.15

2.15

2.15

2.35

2.65

2.7

2.8

2.9

2.7

2.65

2.4

2.3

2.3

2.45

2.6

2.6

June.

2.75

2.8

2. 75

2.85

2.9

2.8

2.7

2.8

2.85

3.3

3.9

3.6

3.3

3.3

3.3

3.2

3.0

2.9

2.9

2.85

( b )

July.

2.65

a 2. 7

2.6

2.4

2.6

2.5

2.6

2.6

2.65

2.7

2.5

2.2

2.15

2.05

2.05

c2. 0

1.95

1.9

1.95

1.85

1.85

2.55

Aug.

2.8

2.9

2.9

3.0

2.65

2.8

2.7

2.65

2.5

2.6

2.95

2.75

2.65

2.8

2.85

2.65

2.9

2.8

2.75

2.95

2.65

2 65

2.6

2.5

2.5

2.5

2.4

2.3

2.0

2.0

Sept.

2.0

1.95

1.9

1.75

1.65

1.6

1.55

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.65

1.65

1.6

1.6

1.6

Oct.

1.6

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.8

1.8

1.8

1.8

1.8

1.8

1.9

1.9

1.9

1.9

1.9

1.9

1 9

1.85

1.8

Nov.

1.8

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

a Temporary gage established. 6 Gage washed out. Permanent gage established.

NOTE. Gage heights from March 28 to July 22 have been reduced to datum of gage established July 

23, 1908.
GRAND RIVER DRAINAGE BASIN. 145

Rating table for Uncompahgre River at Fort Crawford, Colo.,for March 28 to June 10 and 

August 1 to November 30, 1908.

Gage

height.

Feet.

1.40

1.50

1.60

1.70

1.80

Discharge.

Sec.-ft.

39

55

73

93

115

Gage

height.

Feet.

1.90

2.00

2.10

2.20

2.30

Discharge.

Sec.-ft.

138

164

192

222

255

Gage Disheight. charge.

Feet. \ Sec.-ft.

2.40

2.50

2.60

2.70

292

332

377

427

2. 80 481

Gage

height.

Feet.

2.90

3.00

3.10

3.20

3.30

Discharge.

Sec.-ft.

540

603

669

738

810

NOTE. The above table is not applicable for ice or obstracted-channel conditions. It is based on 8 discharge measurements made during 1908, and is well denned.

JUNE 11 TO JUNE 20 AND JULY 12 TO JULY 31, 1908. 

[The indirect method for shifting channels used.]

Daily discharge, in second-feet, of Uncompahgre River at Fort Crauford, Colo., June 11 

to June 20 and July 1 to July 31, 1908.

Day. ! June. July. Day.

2................ ....... 530 12.................

3................ ....... 550 13.................

4.. ..............'....... 570 14.................

5................ ....... 590 15.................

6................ ....... 610 16.................

8................ ....... 580 18.................

9................ ....... 495 19.................

10................ ....... 475 20.................

June.

930

965

910

720

720

July.

635

645

685

740

! Day.

22.... .........

23......... .......

24.................

25................

26.................

28.................

29.................

31.................

June. July.

300

240

185

175

160

425

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Uncompahgre River at Fort Crawford, Colo., for 1908.

Month.

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

The period

Discharge in second-feet.

Maximum.

427 

540 

1,340 

800 

603 

164 

138 

115

|

Minimum.

126 

192 

427 

160 

164 

64 

73 

39

Mean.

253 

299 

712 

483 

414 

86.3 

110 

74.1

!

Run-off 

(total in 

acre-feet).

15,100 

18,400 

28,200 

29, 700 

25, 500 

5,140 

6, 760 

4,410

133,000

Accuracy.

A. 

A. 

C. 

C. 

A. 

B. 

B. 

B.

NOTE. Indirect method for shifting channel used for June 11-20 and July 2-31. 

UNCOMPAHGRE RIVER AT MONTROSE, COLO.

This station, which was established April 22, 1903, to obtain for 

the United States Reclamation Service definite information concerning the amount of water carried by the Uncompahgre, is located at 

the iron highway bridge just west of Montrose and one-fourth mile 

west of the Denver and Rio Grande Railroad. The data are of value 

also in connection with power development. 

24439 IRR 249 10 10
146 STJBFACE WATER SUPPLY, 1907-8.

The station is about 2 miles above Happy Canyon Creek and is also 

above Cedar and Spring creeks. Large irrigation ditches divert water 

between this station and that at Fort Crawford. Existing water 

rights control the normal flow of this river for irrigation. Above 

these diversions, however, opportunities exist for storage and power 

development. Established plants generate about 1,800 horsepower. 

Open-channel conditions prevail at this station, although thick ice 

usually forms along the edges. Slush and anchor ice sometimes 

influence the accuracy of the results. The flow is controlled during 

the irrigation season by the large diversions above. The flow at this 

point will also be affected by the inflow from the south canal of the 

United States Reclamation Service when that is completed.

Neither the location nor the datum of the staff gage, which is 20 

feet upstream from the bridge, has been changed during the maintenance of the station.

Results obtained are good except during winter periods and 

extreme low water.

This station is maintained under the supervision of the United 

States Reclamation Service.

Discharge measurements of Uncompahgre River at Montrose, Colo., in 1907 and 1908.

Date.

1907.

July 1..........

1908. 

May 6. .........

June 26. ........

Hydrographer.

L. J. Foster. ........................................

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

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

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

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

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

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

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

Width.

Feet. 

30

25

34

54

90

24

46

55

29.3

30.5

27

16

23

Area of 

section.

Sq.ft.

46

27

70

135

244

29.7

97

136

53

58

28

12

24.8

Gage 

height.

Feet.

1 79

3.32

4.40

5.67

3.47

4.42

2.77

2.94

1 98

1.50

1.83

Discharge.

Scc.-ft.

01

841

1,520

428

728

169

01

5

12
GRAND RIVER DRAINAGE BASIN. 147

Daily gage height, in feet, of Uncompahgre River at Montrose, Colo.,for 1907 and 1908.

[Thomas Reeves, observer.]

Day.

1907. 

1......................

9

G.. ....... ........ ..

9...................... 

10......................

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

12................... .. 

13......................

14......................

15......................

16...................... 

17......................

18......................

19...................... 

20......................

21...................... 

22...................... 

23......................

24...................... 

25......................

26...................... 

27...................... 

28......................

29...................... 

30......................

31......................

1908.

2......................

3......................

5......................

7......................

8......................

9

10......................

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

12...................... 

13......................

14...................... 

15......................

16......................

17......................

18......................

19......................

20......................

21......................

22...................... 

23......................

24......................

25......................

26......................

27......................

28......................

29......................

30......................

31......................

Jan.

2.38

2.25

2.05

2.25 

2.3

2.28 

2.3

2.25 

2.25

2.12

2.25

2.25 

2.0

2.2

2.2 

2.2

2.2 

2.3 

2.2

2.12 

2.0

2.2 

2.05 

2.1

2.05 

2.22

2.25

2.15

2.20 

2.22

2.13

2.10

2.18

2.05

2.17

2.15

2,15

2.10 

2.08

2.07 

2.22

2.22

2.05

2.05

2.10

2.15

2.15

2.20 

2.10

2.15

2.15

2.05

1.95

1.95

2.05

2.05

Feb.

2.22

2.3

2.3

2.45 

2.35

2.3 

2.3

2.3 

2.2

2.2 

2.25

2.2

2.25 

2.18

2.15

2.12 

2.1

2.05 

2.1

2.2 

2.2

2.3 

2.15 

2.25

2.10

2.10

1.95

2.10

2.20

2.15

1.95

2.05 

2.15

2.15 

2.05

2.08

2.10

2.10

2.15

2.05

2.08

2.05 

2.05

2.10

2.07

2.08

2.15

2.15

2.22

Mar.

2.2

2.18

2.1

2.08 

2.05

2.05 

2.0

2.15 

2.0

2.05

2.1 

2.0

1.95 

2.02

2.05

2.2

2.5 

2.38

2.25 

2.05

2.02 

1.98

1.88 

2.25

2.15

2.15

2.2

2.35 

2.35

2.25

2.2

2.2

2.1

2.15

2.08

2.17

1.95 

2.3

2.35 

2.35

2.42

2.62

2.5

2.45

2.33

2.28

2.3 

2.25

2.22

2.25

2.15

2.05

1.95

1.98

1.92

1.8

Apr.

2.15

1.8

1.85 

1.85

2.1 

1.98

1.9 

2.05

2.2 

2.58

2.9

2.78 

2.7

2.48 

2.2

1.88

1.55

1.68 

1.58

2.38 

2.4

2.35 

2.05 

1.95

1.9 

1.95

1.37

1.55 

1.68

1.57

1.65

1.75

1.65

1.75

1.85

1 90

1.78 

1.85

2.40 

2.55

2.47

2.40

2.37

2.40

2.23

2.15

2.50 

2.42

2.45

2.13

2.05

2.05

2.15

2.22

2.30

May.

1.82

1.28

2.22 

2.6

2. 72 

2.6

2.05 

2.4

2.4 

2.1

2.35

1.88

1.55 

1.75

1.9

2.45

3.3

3.18

2.78 

2.2

1.95

1.88 

1.82

1.82 

2.1

2.05

2.45

2.35

2.30 

2.20

2.35

2.07

2.20

2.05

2.05

1.98 

1.95

1.92 

2.00

1.95

2.25

2.45

2.20

2.00

2.00

2.00 

2.15

2.05

2.05

2.05

2.10

2.00

2.05

1.92

June.

1.9

2.28

3.3

0 00

3.35 

3.45

3.55 

3.55

3.55 

3.25

3.25

3.55

3.85 

3.85

4.25

3.8 

3.7

3. 55 

3.25

4.2 

4.08

4.4

4.8

5.25 

5.45

2.00

2.37

2.15

2.15

2.38

2.25

2.37

3.27

3. 22 

3.15

3. 33 

3.12

3.55

3.90

3.23

2.35

2.23

2.78

3.15 

3.10

3.00

3.15

4.27

3.80

4.05

3.55

3.65

July.

5.3

5.25

5.05

5.35 

5.25

5.0 

4.9

4.75 

4.9

4.3

4.5

4.35

4.2

4.2

3. 25 

3.15

3.55 

3.45

3.2 

3.25

3.4 

3.8 

3.55

3.45 

3.1

2.95

2.80

2.75

2.90

2.92

2.85

2.80

2.90

2.85

2.80

2.85 

2.80

2.80 

3.05

2.78

2.82

2.65

2.48

2.45

2.42

2.40 

2.50

2.35

2.35

2.45

2.50

2.25

2.65

2.50

2.75

Aug.

3.35

4.15 

3.75

3.32 

3.0

2.9 

2.7

2.5 

2.5

2.38

2.25 

2.6

0 (\

2.88

2.85 

2.6

2.85

2.75 

2.55 

2.58

2.62 

2.62

2.7 

2.48

2.2 

2.3

2.25

3.85

3.10 

2.75

3.28

3.05

2.78

2.18

2.22

2.95 

2.52

3.10 

2.80

2.65

3.08

3.12

3.25

3.50

3.25

3.15 

2.75

2.75

2.58

2,40

2.02

1.98

1.75

1.55

Sept.

2.15

2.08 

1 98

1.98 

1.95

1.92 

1 92

1.98 

1.92

1 9

1.95

1.85

2.05 

1.85

1 Q9

1.85

1.78 

1.72 

1.77

1.75

1.78

1.73 

1.62

1.55 

1.5

2.05

1.62

1.65

1.68

1.50

1.58 

1.65

1.70

1.65

1.65

1.68

1.65

1.75

1.85 

1.75

1.75

1.92

2.10

1.95

2.00

1.85

1.95

Oct.

1.5

1.5 

1 5

1.55 

1.5

1.52

1.5

1.6

1.65 

1.7

1.7

1.7

1.7 

1.7

1.7

1.7

1.7

1.7

1.7

1.7 

1 9

1.8 

1.8 

1.8

1.78 

1.75

1.8

1 W7

2.00

1.85

1.95

1.95

1.87

1.93 

1.90

1.90

1.92

2.25

2.30

2.35

2.35

2.30

2.40 

2.30

2.30

2.37

2.33

2.37

2.40

2.40

2.40

2.40

Nov.

1.8

1.8

1.8

1 7S

1.45 

1.7

1.72 

1.75

1.75 

1.75

1.5

1.75

1.78 

1.8

1 QQ

1.95

1 QO

1.95 

2.0

2.22 

1.95

1.92 

1.95

1.9

1.88

2.35

2.40

2.50

2.53

2.50

2.45

2.50

2.42

2.50 

2.48

2.45 

2.40

2.37

2.35

2.40

2.35

2.40

2.45

2.40 

2.50

2.48

2.40

2.47

2.50

2.50

2.40

2.35
148 SUEFACE WATER SUPPLY, 1907-8.

Rating tables for Uncompahgre River at Montrose, Goto.

JANUARY 1, 1907, TO JUNE 25, 1908.

Gage 

height.

Feet.

1.30

1.40

1.50

1.60

1.70

1.80

1.90

2.00

2.10

2.20

2.30

Discharge.

Sec.-ft.

6

9

12

16

22

28

36

46

58

72

88

Gage

height.

Feet.

2.40

2.50

2.60

2.70

2.80

2.90

3.00

3.10

3.20

3.30

3.40

Discharge.

Sec.-ft.

104

122

143

165

187

212

240

271

305

342

382

Gage 

height.

Feet.

3.50

3.60

3.70

3.80

3.90

4.00

4.10

4.20

4.30

4.40

4.50

Discharge.

Sec.-ft.

425

470

515

560

605

650

700

750

800

850

900

Gage 

height.

Feet.

4.60

4.70

4.80

4.90

5.00

5.20

5.40

5.50

Discharge.

Sec.-ft.

950

1,000

1,050

1,100

1,150

1,255

1,365

1,420

NOTE. The above table is not applicable for ice or obstructed channel conditions. It is based on 7 

discharge measurements made during 1907 and 1908 and is well defined between gage heights 1.8 feet and 

5.5 feet.

JUNE 26, 1908, TO NOVEMBER 30, 1908.

Gage

height.

Feet.

1.50

1.60

1.70

1.80

1.90

2.00

2.10

Discharge.

Sec.-ft.

5

6

8

11

20

32

45

Gage

height.

Feet.

2.20

2.30

2.40

2.50

2.60

2.70

2.80

Discharge.

Sec.-ft.

60

75

90

107

127

148

170

Gage

height.

Feet.

2.90

3.00

3.10

3.20

3.30

3.40

3.50

Discharge.

Sec.-ft.

196

222

249

277

306

338

370

Gage

height.

Feet.

3.60

3.70

3.80

3.90

4.00

4.10

Discharge.

Sec.-ft.

402

437

472

510

548

588

NOTE. The above table is not applicable for ice or obstructed channel conditions. It is based on 6 discharge measurements made in 1908, and is well defined between gage heights 2.0 feet and 4.1 feet. Below 

2.0 feet it is somewhat poorly defined.

Monthly discharge of Uncompahgre River at Montrose, Colo.,for 1907 and 1908. 

[Drainage area, 565 square miles.]

Month.

1907.

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

1908.

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

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

Discharge in second-feet.

Maximum.

101 

113 

122 

212 

382 

1,390 

1,340 

725 

75 

36 

75

75 

75 

147 

132 

113 

661 

420 

491 

45 

90 

113

Minimum.

46 

52 

34 

14 

6 

36 

226 

72 

12 

12 

10

41 

41 

28 

8 

38 

46 

68 

5.5 

5 

11 

82

Mean.

72.3 

75.1 

60.5 

69.4 

102 

569 

769 

195 

35.6 

20.2 

33.0

60.9 

57.8 

76.8 

60.7 

61.9 

269 

153 

178 

14.0 

50.7 

96.4

Per 

square, 

mile.

0.128 

.133 

.107 

.123 

.181 

1.01 

1.36 

.345 

.063 

.036 

.058

.108 

.102 

.136 

.107 

.110 

.476 

.271 

.315 

.025 

.090 

.171

Run-ofl.

Depth in 

inches on 

drainage 

area.

0.15 

.14 

.12 

.14 

.21 

1.13 

1.57 

.40 

.07 

.04 

.06

.12 

.11 

.16 

.12 

.13 

.53 

.31 

.36 

.03 

.10 

.19

Total in 

acre-feet.

4,450 

4,170 

3,720 

4,130 

6,270 

33,900 

47,300 

12, 000 

2,120 

1,240 

1,960

121,000

3,740 

3,320 

4,720 

3,610 

3,810 

16,000 

9,410 

10,900 

833 

3,120 

5,740

65,200

Accuracy.

C. 

C. 

B. 

B. 

B. 

A. 

A. 

A. 

C. 

D. 

C.

C. 

C. 

B. 

B. 

B. 

B. 

A. 

A. 

D. 

C. 

C.
GRAND RIVER DRAINAGE BASIN. 149

UNCOMPAHGRE RIVER NEAR DELTA, COLO.

This station was established April 29, 1903, at a highway bridge 

one-fourth mile above the Denver and Rio Grande Railroad bridge. 

On November 17, 1903, it was removed to the Denver and Rio 

Grande Railroad bridge, one-fourth mile northwest of the Denver 

and Rio Grande depot. The vertical gage at this bridge was read 

until April 21, 1904, when an inclined gage was installed on the right 

bank near the bridge. The gage was read until November, 1906, when 

a staff gage was installed at the present location the second highway 

bridge 2 miles south of Delta. Observations were not begun at this 

gage until April 21, 1907.

During normal stages the flow of the river at this point is nearly 

all seepage water from the irrigation ditches above. The station is 

important because it shows the seepage during low stages, and the 

storage possibility during high stages.

The station is located near the junction of the Uncompahgre with 

the Gunnison and is below all tributaries and diversions. During 

the irrigation season the ditches consume all the normal flow. Opportunities for power and storage development, however, are found on 

the headwaters of the river.

Results are probably not materially affected by ice conditions, as 

ice does not form very thick, except along the edges of the stream. 

Slush ice frequently occurs.

There is no determined relation between the datum of the last 

established gage and the several earlier gages, and the gage used 

from April 22, 1904 to November, 1906, is at a different datum from 

the previous gage.

Records obtained at this station are good except during extremely 

low stages.

This station is maintained under the supervision of the United 

States Reclamation Service.

Discharge measurements of Uncompahgre River near Delta, Colo., in 1907 and 1908.

Date.

1907. 

April 16. .......

May 10.........

July5..........

1908. 

Aprils.........

April 24. .......

June 29.........

July 31.........

Hydrographer.

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

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

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

.....do.............-..............---..--..---.---..

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

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

..... do........... -........-..-.-.---.-.--..---.-...-

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

Width.

Feet. 

47

15

42

49

49

43

27

20

20

51

25

20

Area of 

section.

Sq.ft. 

97

28

96

80

138

180

81

56

36

102

45

35

Gage 

height.

Feet. 

2.39

1.38

2

C7

914

3.15

3.93

1.75

1.50

1.25

2.50

1.45

Discharge.

Sec.-ft. 

259

10

166

527

1,040

63

17.6

257

39

12.3
150 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Uncompahgre River near Delta, Colo.,for 1907 and 1908.

[W. J. Lance, observer.]

Day.

1907. 

1.....................

2.. ......... . .......

3.....................

4.....................

5. ...................

f>. ....................

8. ....................

9.....................

10.....................

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

12.....................

13.....................

14.....................

15. ....................

10.....................

17.....................

18.....................

19.....................

20. .................... 

21....... ...... ...

22. ....................

23.....................

25. ....................

20............ ........

27. ....................

28. ............... ...

29.....................

30. ....................

31.....................

1908.a 

1.....................

9

3....................

4........... .. . 

5................ ...

0.....................

7.....................

S. ...... ..............

9.....................

10..................... 

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

12........ ... ..

13................. ...

14.....................

15. ................ ...

10.....................

17................. ... 

18.....................

19

20. ....................

21.......... ...... .. 

22. ...... .... .... 

23. ....................

24..................... 

25. ....................

26.....................

27.....................

28. ....................

29.....................

30. ....................

31.....................

Jan.

2.1 

2.15

2.15

2.1 

2.0

2.1

2.1

2.05

2.05 

2.05

2.1

2.15

2.2

2.15

2.1

2.3 

2.3

9 q

2.3

2.3 

2.2 

2.2

2.15 

2.15

2.0

2.0

2.0

2.0

2.0

2.0

Feb.

2.0 

2.0

2.0

2.0 

2.0

2.0

2.0

2.0

2.0

2.0 

2.0

2.0

2.0

2.0

2.0

2.0

1.9

2.0

2.0

2.0

2.0 

2.0 

2.0

2.0 

2.05

2.05

2.05

2.25

2.25

Mar.

2.3 

2.2

2.0

2.0 

2.0

2.0

2.0

2.0

2.0

2.0 

2.0

2.05

2.05

2.05

2.0

2.0

2.05 

2.1

2.1

2.0

1.95 

1.9 

1.9

1.9 

1.9

1 9

1.8

1.8

1.7

1.6

1.6

Apr.

1.7

1.4

1.45

1.4

1.4

1.45

1.35

1.55 

1.5

1.5

1.5 

1.5

1.5

1.65

1.6

1.55

1.4 

1.35

1.4

1.4

1.4

1.4

1.6

1.5 

1.2

1.2

1.35

1.2 

1.3 

1.45

1.55 

1.4

1.4

1.3

1.2

1.25

1.3

May.

1.35

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1 3

1.35

1.6

1.5

1.4

1.4

1.35

1.3

1.65

1.S5 

2 2

2.6

2.7

2.4

2.0

1.75

1.6

1.6

1.6

1.45

1.3 

1.4

1.45

1.45 

1.4

1.4

1.3

1.3

1.3

1.3 

1.3

1.0

.95

1.1

1.3

1.3

1.3 

1.3

1.3

1.3

1.3 

1.3 

1.3

1.25 

1.25

1.3

1.2

1.2

1.2

1.2

1.2

June.

1.4

1.4

1.75

2.75

2.5

2.75

2.75

2.8

2.7

2.7

2.75

2.5

2.55

2.55

2.65

2.75

2.85

2.7

2.65 

2.5

2.15

2.3

2.75

3.2

3.3

3.45

3.55

3.80

1.2 

1.2

1.2

1.15 

1.05

1.1

1.1

1.1

1.2

1.6 

2.0

2.0

1.65

1.75

1.9

2.0

2.15 

1.95

1.45

1.45 

1.4 

1.5

1.45 

1.45

2.6

2.75

2.3

2.2

2.1

July.

4.05

4.05

3.7

o 7C

3.75

4.0

3.85

3.65

3. 45

3.3

3.25

3.25

3.45

3.0

2.65

2.2

1.9

2.0 

2.1

2.0

2.1

9 1

2.25

2.35

2.7

2.65

2.4

2.25

2.05

1.95 

1.6

1.5

1.5 

1.4

1.45

1.3

1.35

1.3

1.3 

1.35

1.35

1.35

1.3

1.5

1.4

1.35 

1.3

1.3

1.3

1.3 

1.3 

1.3

1.3 

1.3

1.3

1.3

1.3

1.45

1.3

1.35

Aug.

2.05

2.0

2.8

2.6

2.45

2.4

2.25

2.2

2.0

2.0

1.8

1.8

2.15

2. 55

2.35

2.2

2.0

1.95

2.3

2.65 

2.55

2.4

2.1

2.1

2.5

2.6

2.0

2.0

2.0

2.0

2.0

1.5 

2.2

1.9

1.7 

1.5

1.85

2.15

1.65

1.5

1.6 

3.05

2.5

1.8

2.25

2.15

1.95

2.0 

2.5

2.6

2.7 

2.6 

2.45

2.3 

2.1

1.95

1.7

1.55

1.4

1.4

1.35

Sept.

2.0

2.0

1.85

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.8

1.95

2.0

1.8

1.8

1.8 

1.8

1.8

1.7

1.8

1.85

1.85

1.8

1.7

1.3 

1.4

1.3

1.3 

1.3

1.3

1.4

1.5

1.5

1.5 

1.4

1.4

1.5

1.5

1.5

1.5

1.5 

1.5

1.5

1.5 

1.5 

1.5

1.5 

1.5

1.6

1.5

1.5

1.45

1.4

Oct.

1.75

1.75

1.7

1.7

1.7

1.7

2.15

2.15

1.8

1.75

1.7

1.75

1.75

1.7

1.7

1.85

1. 9

1.9

1.85

l.S

1. 85

1.9

1.8

1 S

1.9

1.8

1.75

1.75

1.8

1.8

1.35 

1.5

1.5

1.5 

1.55

1.6

1.6

1.6

1.6

1.5 

1.5

1.5

1.5

1.5

1.5

1.55

1.65

1.8

2.0

2.0 

2.0 

1.9

1.9 

1.9

1.9

1.85

1.8

1.8

1.8

1.9

Nov.

1.95

1.9

2.15

2.1

2.05

2.1

2.15

2.0

1.95

1.75

1.75

1.8

1.S5

2.0

2.3

2.2

1.9.5

2.05 

2.0

1.95

2.15

2.5

2.25

2.15

2.05

2.0

2.0

2.15

1.9 

1.8

1.8

1.8 

1.85

2.0

2.0

2.0

2.0

2.0 

2.0

2.0

2.0

2.0

2.0

1.9

1.95 

2.0

2.1

2.2

2.1 

2.0 

2.0

2.1 

2.0

2.0

2.0

2.0

2.0

1.85

a For gage heights less than 1.3 feet during 1908 there was no flow. 

NOTE. The river was probably frozen during part, at least, of January and February.
GRAND RIVER DRAINAGE BASIN. 151

Rating tables for Uncompahgre River near Delta, Colo.

1907.

Gage 

height.

Feet.

1.30

1.40

1.50

1.60

1.70

1.80

1.90

2.00

Discharge.

Sec.-ft.

6

11

21

36

55

77

101

127

Gage 

height.

Feet.

2.10

2.20

2.30

2.40

2.50

2.60

2.70

Discharge.

Sec.-ft.

155

184

215

248

283

Gage 

height.

Feet.

2.80

2.90

3.00

3.10

3.20

320 1 3.30

359 | 3.40

Discharge.

Sec.-ft.

400

443

490

540

590

640

700

Gage 

height.

Feet.

3.50

3.60

3.70

3.80

3.90

4.00

4.10

Discharge.

Sec.-ft.

760

820

890

960

1,030

1,110

1,190

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on nine discharge measurements made during 1907, and is well defined.

1908.

Gage 

height.

Feet. 

1.25 

1.30 

1.40

Discharge.

Sec.-ft. 

0 

1

Gage

height.

Feet.

1.50

1.60

Discharge.

Sec.-ft.

18

33

Gage

height.

Feet.

1.70

1.80

Discharge.

Sec.-ft.

52

74

Gage

height.

Feet.

1.90

2.00

Discharge.

Sec.-ft.

100

127

NOTE. The above table is not ap pile-able for ice or obstructed-channel conditions. It is based on thirteen 

discharge measurements made during 1907 and 1908 and is well denned. Above gage height 2.0 feet it is the 

same as the 1907 table.

Monthly discharge of Vncompahgre River near Delta, Colo., for 1907 and 1908.

Month.

1907. 

April 21-30. .........................................

Juty...... ...........................................

1908.

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

Discha 

Maximum.

55 

359 

960 

1,150 

400 

127 

170 

283

rge in secom 

Minimum.

8 

6 

11 

101

77 

30 

55 

66

1

215 

200 

215 

42 

12 

380 

114 

515 

33 

302 184

127 

100 

33 

0 

0 

0 

1 

4 

1 

4 

74

-feet. 

Mean.

19.1 

06.5 

368 

526 

196 

72.5 

81.0 

140

162 

132 

119 

12.2 

2.0 

75.2 

9.0 

150 

14.1 

63.2 

122

Run-off 

(total in 

acre-feet).

379 

4,090 

21,900 

32,300 

12,100 

4,310 

4,980 

8,330

88.400

9,960 

7,590 

7.320 

726 

123 

4,470 

533 

9,220 

839 

3.890 

7.260

51,900

Accuracy.

C. 

B. 

A. 

A. 

A. 

A. 

A. 

A.

D. 

D. 

B. 

C. 

D. 

A. 

C. 

A. 

0. 

A. 

A.
152 SURFACE WATER SUPPLY, 1907-8. 

SAN JUAN RIVER DRAINAGE BASIN. 

DESCRIPTION.

San Juan River rises among the snow masses that crown the high 

peaks of the San Juan Mountains in southwestern Colorado, flows 

southwestward into New Mexico, then swings to the west and northwest, passing from San Juan County, N. Mex., across the extreme 

southwestern corner of Colorado into San Juan County, Utah, in the 

southwestern part of which it unites with the Colorado.

For the first 75 miles of its course the San Juan is a typical mountain 

stream, but at Canyon Largo, N. Mex., where it turns westward, its 

character changes, and it occupies a broad, winding, sandy channel 

in an arid valley, bordered on each side by terraced mesas. Below 

the mouth of Mancos River the valley narrows and the river bottom 

is bounded by abrupt bluffs, broken and cut by dry water channels, 

and merging farther on into the walls of a deep, narrow, box canyon 

in which the river flows to its end.

The drainage area includes portions of four States and Territories. 

Its topography ranges in type from mountainous at the headwaters 

in Colorado to the types exemplified in the valleys, plateaus, and 

eroded mesas of Utah, New Mexico, and Arizona. Large areas of 

eruptive rocks occur in the highest portions of the basin, but the predominating formations are of sedimentary origin. The headwater 

streams are protected by fine forests of spruce and yellow pine and at 

lower elevations large areas of aspen. The lower basin is practically 

barren except for an extensive growth of sagebrush, scattered cedars, 

pinons, and range grasses.

The principal tributaries of the San Juan are Navajo, Piedra, Pine, 

Florida, Animas, and La Plata rivers, the Animas being the most 

important.

Animas River has its source in the region above Silverton, draining 

portions of the Needle and La Plata mountains, the former being the 

most rugged of the Rocky Mountain ranges. The river flows southward to the Colorado-New Mexico line and thence southwestward to 

the point where it joins the San Juan at Farmington, N. Mex. The 

upper portion of the basin, above Durango, is very mountainous and 

furnishes the greater part of the run-off (PL VII, B, p. 128). This 

region is generally well timbered with pine, spruce, and aspen, but large 

areas consist of naked granite peaks. Immediately above and below 

Durango the valley broadens and is bordered by mesas and bluffs cut 

by narrow canyons and covered with sagebrush and scattered pines 

and pinons; along the stream channels cottonwoods predominate. 

The rocks of this region are chiefly of sedimentary origin. The soils 

of the lower valleys consist of sandy loam and are very fertile.
SAN JUAN RIVER DRAINAGE BASIN. 153

La Plata River rises in the granite masses known as La Plata Mountains, about 25 miles northwest of Durango, Colo., and flows southward to its point of junction with the San Juan. Its drainage basin 

is a narrow strip parallel to and adjoining the Animas basin. The 

upper portion of the basin is a well-watered and forest-clad mountain region which merges southward into an arid mesa, plateau, and 

canyon country. La Plata Valley proper is a narrow, shallow depression from Hesperus down, bounded on both sides by high, broken 

tablelands and deeply eroded mountains. The lower mountain slopes 

are covered with pinon, scrub oak, and cedar; the lower valleys support heavy growths of sagebrush and chico; the upper mountain 

slopes were at one time heavily timbered with spruce and yellow and 

white pine, but these forests have been largely removed by lumbermen.

The other tributaries of the San Juan need not here be described. 

Those mentioned are perennial streams, but much of their water is 

diverted for irrigation and never reaches the main river. In addition 

to the perennial streams are many intermittent creeks throughout 

New Mexico, which contribute large volumes of water during heavy 

storms.

The altitudes in this drainage basin range from over 13,000 feet in 

the highest mountains to between 6,000 and 7,000 feet at the Colorado-New Mexico line. The San Juan at the mouth of the Animas 

has an elevation of about 5,300 feet; at its junction with Colorado 

River the elevation is about 3,500 feet.

Most of the timbered land in the San Juan drainage basin is included in the San Juan National Forest, which contains nearly 2,000 

square miles of merchantable timber, 100 square miles of woodland, 

300 square miles of sagebrush, and 200 square miles of barren and 

burnt area.

A small area in the high mountain drainage of this stream has an 

annual precipitation of over 25 inches, and over a considerable area 

the average exceeds 20 inches; but for the remainder of the area the 

average in Colorado seems to be about 15 inches, that in New Mexico 

about 10 inches, and in Utah about 15 inches.

Above an altitude of 7,500 feet the winters are severe and snowfalls 

are heavy. Below an elevation of 6,000 feet the winters are comparatively open and mild. The upper mountain streams flow under a 

thick ice cover, but in the more open country, in the vicinity of Aztec, 

it is rather unusual for the rivers to freeze over entirely, though much 

ice forms along the edges, and slush ice is often seen.

Much land along the valleys of San Juan, Animas, Pine, Florida, and 

La Plata rivers and the smaller tributaries in Colorado are now under 

cultivation, and also a few thousand acres of valley land in New Mex-
154 SURFACE WATER SUPPLY, 1907-8.

ico. Up to this time irrigation has largely been confined to the bottom land. The greatest opportunities for future development are in 

San Juan County, N. Mex., where exceptionally large areas, aggregating probably a million acres of fertile lands, are excellently adapted 

to irrigation. The rivers there are bordered by broad mesas and 

benches, sloping back for miles in many places, and easily reached by 

irrigation canals. The water supply is ample.

Numerous small lakes, high up in the mountains, tend to equalize 

the flow of some of the tributaries, and many large and small storage 

reservoir sites are available. Among others may be mentioned the 

Turley reservoir site, on San Juan River below the mouth of the Pine, 

which has a storage capacity of about one and a half million acre-feet.

Excellent opportunities for power development are presented. 

Theoretically, with proper storage, it will be possible to develop nearly 

300,000 horsepower. Falls of 100 to 300 feet per mile are common 

on the upper reaches of the stream. The San Juan has an average 

fall of about 13 feet to the mile from the mouth of the Piedra to the 

mouth of the Mancos, a distance of about 115 miles, while the fall 

above the mouth of the Piedra is very much greater. The Animas 

has a fall of over 70 feet to the mile from Silverton to Durango, a 

distance of about 40 miles, and from Durango to its mouth the average fall is over 20 feet to the mile. Present developments are practically limited to two power plants on Animas River, of 6,000 and 

1,000 horsepower. Several other plants are contemplated.

The largest deposits of lignite, bituminous, and coking coal in the 

West are to be found in this drainage area.

The following gaging stations have been maintained in the San Juan 

basin:

San Juan River near Arboles, Colo., 1895-1899.

San Juan River at Turley, N. Mex., 1907-8.

San Juan River near Farmington, N. Mex., 1904-1906.

Piedra River near Arboles, Colo., 1895-1899.

Los Pinos River at Ignacio, Colo., 1899-1903.

Animas River at Silverton, Colo., 1903.

Animas River at Durango, Colo., 1895-1905.

Animas River at Aztec, N. Mex., 1904, 1907-8.

Animas River near Farmington, N. Mex., 1904-5.

Florida River near Durango, Colo., 1899, 1901-1903.

La Plata River at Hesperus, Colo., 1904-1906.

La Plata River near La Plata, N. Mex., 1905-1908.

Mancos River at Mancos, Colo., 1898-1900.

SAN JUAN RIVER AT TURLEY, N. MEX.°

This station, which was established June 6, 1907, to obtain data 

necessary to determine the amount of water available for irrigation 

from this stream, was discontinued November 30, 1908. The data

a A new station was established December 9,1908, at Blanco, N. Mex., to take the place of this station.
SAN JUAN ETVER DRAINAGE BASIN. 155

collected are also valuable for power purposes. It was located about 

one-fourth of a mile north of Turley post-office and about 18 miles 

east of the Denver and Rio Grande Railroad at Aztec, N. Mex.

The station was about 5 miles above the mouth of Canyon Largo, 

which is an intermittent stream draining a vast area and discharging 

during flood stages thousands of second-feet of water. The drainage 

area of the San Juan at Turley is about 4,700 square miles.

Irrigation is carried on extensively in a number of the tributary 

valleys above this station, the greatest development being along 

Pine River and Rio Piedra. A large canal, now under construction, 

will divert water from Pine River to irrigate land in Colorado. The 

diversions below the station are mainly small private ditches. Opportunities for power and irrigation enterprises are good.

The river seldom freezes over entirely, but ice usually forms along 

the edges and narrows the channel considerably. Slush ice is common 

during the winter months.

Neither the location nor the datum of the staff gage has been 

changed during the maintenance of the station.

The results obtained are considered fairly good.

Discharge measurements of San Juan River at Turley, N. Mex., in 1907 and 1908.

Date.

1907. 

June 6.........

1908. 

April 12........

Hydrographer.

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

V. L. Sullivan. .....................................

Width.

Feet. 

192

180

158

182

Area of 

section.

Sq.ft. 

1,240

574

254

790

Gage 

height.

Feet. 

7.60

4.55

2.60

5.40

Discharge.

Sec.-ft. 

7,750

1,960

314

3,080

Daily gage height, in feet, of San Juan River at Turley, N. Mex., for 1907 and 1908. 

[Jay Turley and A. C. Jaquez, observers.]

Day.

1907.

4...............

6...............

7...............

9...............

10...............

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

12................

13............... 

14...............

1^

16............... 

17...............

18...............

19...............

20...............

Jan.

-------

---

Feb.

.......

Mar. Apr. May. June.

7.57

7.65 

7.70

7.50

7.20

7.05

7.35

7.85 

7.90

8.00

7.90 

7.85

8.00

7.85

7.65

July.

8.60

8.30

8.20 

8.15

8.05

7.90 

7.60

7.50

7.20

7.05

6.90

7.00 

7.30

7.20

6.90 

6.45

6.30

6.20

6.20

Aug.

5.00

5.20

5.50

5.30 

5.10

4.80

4.72 

4.58

4.45

4.33

4.24

4.10

5.25 

5.00

4.72

4.35 

4.20

4.08

4.30

4.41

Sept.

5.00

4 80

4.60 

4.50

4.65

4.55 

4.45

4.35

4.30

4.20

3.90

3.80 

3.75

3.70

3.65 

3.60

3.90

4.25

4.20

Oct.

3.30

3.40

3.30

3.30 

3.35

3.30

3.25 

3.70

3.50

3.40

3.30

3.25

3.20 

3.15

3.10

3.15 

3.10

3.05

3.05

3.05

Nov.

3.25

3.20

3.15

3.05 

3.05

3.00

3.00 

3.00

3.00

2.95

2.95

2.90

2.90 

2.90

2.85

2.80 

2.90

2.95

2.90

2.85

Dec.

2.60

2.55

2.55 

2.60

2.65

2.75 

2.80

2.75

2.70

2.75

2.70

2.65 

2.55

2.60

2.65 

2.65

2.70

2.75

2.50
156 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of San Juan River at Turley: N. Mex., for 1907 and 1908 Con.

Day.

1907. 

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

1908. 

1...............

2...............

3...............

J:::::::::::::::

6...............

7...............

8...............

9............... 

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25............... 

26...............

27...... .......

28...............

29...............

30...............

31...............

Jan.

2.7

2.85

2.6

2.65 

2.8

9 7

2.7

2.8

2.65 

2.75

2.85

2.9

2.8

2.7

2.6

2.65

2.65

2.8

2.95

2.7

2.75

2.7

2.65

2.75

2.8

2.7

2.7

2.75

2.6

2.6

Feb.

2.65

2.75

3.85

5.1 

4.05

3.25

2.7

2.65

2.6 

2.7

2.6

2.55

2.5

2.45

2.75

3.85

3.2

3.15

3.05

2.8

3.8

3.6

3.5 

3.8

3.85

3.8

3.8

Mar.

3.8

3.3

3.3

3.3 

4.3

4.6

4.0

3.7

4.2 

3.5

3.65

3.95

4.3

4.5

4.85

5.25

5.75

5.6

5.2

5.0

^ ft

4.7

4.7

4.8 

4.95

5.05

4.85

4.65

4.5

4.3

Apr.

4.4

4.45

4.7

4.8 

5.2

5.25

5.2

5.3

5.3 

5.35

5.4

5.4

5.2

5.4

5.6

6.2

6.1

5.8

5.65

5.8

5.9

5.45

5.55

5.55

5.3 

5.15

5.0

4.85

4.8

4.75

May.

5.8

6.0

5.9

5.65 

5.35

5.1

5.0

5.0

5.3 

5.3

5.1

5.0

5.0

4.9

4.7

5.3

5.2

6.15

6.1

5.9

5.7

5.55

5.4

5.25 

5.0

5.0

4.9

4.8

4.75

4.85

June.

7.40

7.20

7.70

7 Q^

8.05

8.25

8.40

8.55

5.55

6.0

5.85

6.1 

6.2

6.2

5.8

5.7

5.8 

6.4

6.6

5.8

6.7

6.6

6.8

6.0

5.4

5.3

5.2

5.6

5.7

5.6

5.4 

6.3

6.6

6.5

5.7

5.5

July.

6.00

5.93

5

7C

6.80

5

QO

5.78

5.55

5.40

5.28

5.10

5.45

5.2

5.1

5.0 

4.9

5.0

4.8

4.85

4.7 

4.65

4.5

4.5

4.55

4.6

4.6

4.7

4.6

4.5

4.4

4.3

4.32

4.2

4.15

4.25 

4.25

4.25

4.15

4.38

4.4

4.6

Aug.

4 60

4 60

4.32

A f{K

4.45

A KA

4.44

4.70

4.8

8.8

5.6

5.28 

5.0

4.8

5.8

4.8

4.7 

4.3

4.2

4.0

4.8

5.0

5.4

5.4

5.2

5.4

5.6

6.05

5.0

4.9

4.8

4.5 

4.5

4.4

4.2

4.0

4.0

3.95

Sept.

4.10

4.00

3.85

3

?c

3 7fl

3 60

3.55

3.40

3.35

3.6

3.7

3.5

3.6 

3.5

3.4

3.3

3.1

3.0 

3.0

2.9

2.9

2.9

2.9

2.9

2.8

2.95

2.9

3.0

3.1

3.0

3.05

3.0

3.0

2.95 

2.95

3.0

3.0

3.0

3.05

Oct.

3 on

3.00

3.00

q on

3.30

3.30

3.20

3.10

3.10

3.25

3.35

3.0

3.05

3.1

3.1 

3.0

2.9

2.95

3.0

3.05 

3.05

3.0

3.05

3.0

3.0

3.1

3.0

3.05

3.1

3.15

3.2

3.2

3.1

3.15

3.15 

3.15

3.1

3.0

3.05

3.0

3.05

Nov.

2 80

9 7^

2.65

9 ^£

2.70

2.75

2.85

2.75

3.0

2 9

2.75

2.85 

2.8

2.9

2.85

2.95

2.9 

3.0

3.05

2.95

2.85

2.7

2.75

2.65

2.6

2.55

2.4

2.3

2.25

2.2

2.25

2.15

2.1 

2.15

2.25

2.15

2.1

2.05

Dec.

2.75

2.85

2 60

2 7D

3 ATI

2 90

2

7C

2 V)

2.60

.:....

......

Rating table for San Juan River at Turley, N. Mex., for June 6, 1907, to November 30,

1908.

Gage

height.

Feet.

2.00

2.10

2.20

2.30

2.40

2.50

2.60

2.70

2.80

2.90

3.00

3.10

3.20

Discharge.

Sec.-ft.

100

130

160

195

235

280

330

380

430

490

550

620

690

Gage

height.

Feet.

3.30

3.40

3.50

3.60

3.70

3.80

3.90

4.00

4.10

4.20

4.30

4.40

4.50

Discharge.

Sec.-ft.

760

840

920

1,000

1,090

1,180

1,270

1,360

1,460

1,560

1,660

1,770

1,880

Gage

height.

Feet.

4.60

4.70

4.80

4.90

5.00

5.20

5.40

5.60

5.80

6.00

6.20

6.40

Discharge.

Sec.-ft.

1,990

2,110

2,230

2,350

2,480

2,750

3,050

3,350

3,680

4,040

4,420

4,830

Gage

height.

Feet.

6.60

6.80

7.00

7.20

7.40

7.60

7.80

8.00

8.20

8.40

8.60

8.80

Discharge.

Sec.-ft.

5,250

5,680

6,150

6,650

7,170

7,720

8,310

8,910

9,510

10,120

10, 740

11,360

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on four 

discharge measurements made during 1907 and 1908. These measurements lying between gage heights 2.5 

feet and 8.0 feet are well distributed and form a good curve. They are insufficient in number, however, to 

indicate any possible change in conditions of flow.
SAN JUAN RIVEE DRAINAGE BASIN. 157 

Monthly discharge of San Juan River at Turley, N. Mex., for 1907 and 1908.

Month.

1907. 

June 6-30. ...........................................

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

1908.

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

Tlie period

Discharge in second-feet.

Maximum.

10,600 

10,900 

3,200 

2,480 

1,090 

725 

550

Minimum.

6,280 

2,610 

1,440 

800 

550 

305 

280

Mean.

8,150 

6,030 

2,080 

1,450 

711 

489 

367

1

520 

2,610 

3,600 

4,420 

4,320 

5,680 

3,120 

11,400 

1,090 

690 

585

330 

258 

760 

1,770 

2,110 

2,750 

1,510 

1,320 

430 

490 

115

395 

766 

1,920 

2,930 

2,910 

4,020 

1,990 

2,550 

627 

592 

337

Run-off , i ,, 

(total In l^f acre-feet) - acj 

1

404, 000 

371,000 

128,000 

86, 300 

43,700 

29,100 

22,600

1,080,000

24,300 

44, 100 

118,000 

174,000 

179,000 

239,000 

122,000 

157, 000 

37, 300 

36.400 

20,100

1,150,000

A. 

A. 

A. 

A. 

A. 

B. 

B.

B. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

B.

NOTE. The above accuracy notes are based on the assumption of constant conditions of flow. See ratingtable foot note. 

Discharge estimated for days in August and September, 1907, that the gage record is missing.

SAN JUAN RIVER, AT BLANCO, N. MEX.

This station was established December 9, 1908, and takes the place 

of the station at Turley, which was discontinued November 30, 1908. 

It is located at the new suspension bridge, which crosses the San 

Juan at Blanco about 4 miles below Turley post-office, 16 miles 

southeast of the Denver and Rio Grande Railroad, at Aztec, N. Mex., 

and one-half mile above the mouth of Canyon Largo.

The following discharge measurement was made by J. B. Stewart:

December 10, 1908:a Width, 194 feet; area, 194 square feet; gage height, 2.60 

feet;& discharge, 157 second-feet.

Daily gage height, in feet, of San Juan River at Blanco, N. Mex., for 1908.

Day.

1......... ...........

3............. .......

4....................

6....................

7....................

Q

10....................

Dec.

9 fi

2.6

Day.

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

12...................

13...................

14...................

1 f*

17...................

1 Q

19

20...................

Dec.

2.6

2.4

2.4

2.4

2.7

3.0

2.4

3.0

2.8

2.8

Day.

21...................

22...................

23...................

24...................

25...................

26...................

27...................

28. ..................

29...................

30...................

31...................

Dec.

2.75

2.8

3.0

3.0

2.85

2.8

2.7

2.7

2.6

2.7

2.7

a Slush ice. & Chain gage.
158 SURFACE WATER SUPPLY, 1907-8.

ANIMAS RIVER AT AZTEC, N. MEX.

This station was originally established June 21, 1904, at a woodentruss highway bridge about three-eighths of a mile west of Aztec, 

N. Mex. It was discontinued December 14, 1904, and reestablished 

at the same location on June 8, 1907. On September 13, 1908, it 

was moved to a new suspension bridge about half a mile above the 

old bridge, which was torn down on completion of the new bridge. 

The station is about one-third of a mile west of Aztec, on the main 

wagon road to Farmington and La Plata.

No change in the staff gage or gage datum occurred during the 

maintenance of the station at the old location. Beginning September 

13, 1908, an inclined staff gage, installed a few feet downstream from 

the suspension bridge at an arbitrary datum, was read.

The records obtained at this point are valuable for irrigation and 

power projects, as the irrigable area in this basin is large and the 

fall of the river is heavy.

The station, although 20 miles above the mouth of the river, is 

below all important tributaries. The drainage area is about 1,300 

square miles. Between Durango and Aztec many large ditches 

divert water for irrigation, and the discharge at this station does not 

represent the total run-off of the stream. Notwithstanding numerous existing water rights, an ample supply of water is available for 

future development.

Ice forms to a considerable depth along the edges during the 

greater part of the winter, but the river seldom freezes across. Slush 

ice occurs frequently during the winter months.

Results are good except during July, August, and September, 

1908, when the shifting of the channel interfered with the accuracy 

of the data.

Discharge measurements of Animas River at Aztec, N. Mex., in 1907 and 1908.

Date.

1907.

1908. 

April 13........

Hydrographer.

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

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

J. B. Stewart. ......................................

Width.

Feet. 

150

90

QC

116

126

82

Area of 

section.

Sq.ft. 

762

189

421

141

ins

Gage, 

height.

Feet. 

8.50

6.00

7.30

n q on

Discharge.

Sec. ft. 

3,660

1,141

181

New gage at different datum. t> Wading measurement.
SAN JUAN RIVER DRAINAGE BASIN. 159

Daily gage height, in feet, of Animas River at Aztec, N. Mex.,for 1907 and 1908. 

[J. M. Thomas, H. S. Wattles, observers.]

Day. Jan.

1907. 

1.. ............. .......

2............... .......

3............... .......

4. .............. .......

6 ......

9............... .......

10............... .......

12... .................

15............... .......

16............... .......

17............... .......

1 S

19

20............... .......

22

23............... .......

24. .............. .......

26............... .......

27............... .......

28

29............... .......

30............... .......

31............... .......

1908. 

1.... ........... 6.0

2............... 6.0

3............... 6.0

4............... 6.0

5............... 6.0

6............... 6.0 

7.......... .... R. 0

9............... 6.0 

10............... 6.0

11............... 6.0

12............... 6.0 

13............... 6.0

14............... 6.0

17............... 6.0

19............... 6.5

20. .............. 6. 4

21 ............... 6.3 

22... ......... 6.3

23............... 6.3

24. .............. 6.3 

25............... 6.3

27............... 6.3

29............... 6.2

30............... 6.2

31............... 6.2

Feb.

6.2

6.2

6.3

6.3

6.4

6.4 

6.3

6.2

6.2 

6.2

6.2

6.0 

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0 

6.0

6.1

6.2

6.3

6.2

6.2

Mar.

6.3

6.3

6.3

6.3

6.5

6.5 

6.4

6.4

6.5 

6.5

6.3

6.4

6.7

7.0

7.0

7.2

7.5

7.4

7.6

7.8

7.7 

7.7

7.8

7.5 

7.6

7.7

7.6

7.5

7,4

7.3

7.3

Apr.

7.2

7 2

7.1

7.1

7.2

7.2 

7.3

7.3

7.2 

7.3

7.2

7.2 

7.3

7.3

7.3

7.4

7.5

7.5

7.5

7.6

7.8

7.7

7.6

7.5 

7.5

7.4

7.4

7.3

7.2

7.2

May.

7.1

7.5

7.6

7.6

7.5

7.7 

7.6

7.5

7.6 

7.6

7.5

7.6 

7.6

7.7

7.8

7.7

7.8

8.0

8.1

8.3

8.5 

8.3

8.0

7.9 

7.9

7.8

7.7

7.6

7.5

8.0

June.

8. ">0

8.7

8.65

8.65

8.7

8.9

9.0

8.8

8.5

8.3

8.4

8.65

8.75

8.75

8.8

8.8

9.0

8.0

8.1

8.0

7.9

8.0

8.1 

8.2

8.4

8.4 

8.5

8.3

8.6 

8.4

8.6

8.5

8.6

8.7

8.5

8.4

8.2

8.3

8.4

8.4

8.5 

8.4

8.4

8.5

8.4

8.4

8.5

July.

9.0

9.0

8.9

8.8

8.8

9.0

8 9^

8 9

8.7

8.6

8.5

8.5

8.6

8.9

8.6

8.4

8.2

8.15

8.1

8.15

0 1

8.1

8.0

8.0

8.0

8.0

7 9

7.9

7.8

7.7

8.5

8.2

7.9

7.6

7.4

7.4 

7.4

7.3

7.2 

7.3

7.3

7.3

7.2

7.2

7.2

7.1

7.3

7.2

7.3

6.8

6.9 

6.7

6.6

6.5 

6.4

6.4

6.5

6.7

6.6

6.8

6.6

Aug.

7.6

7.7

8.1

8.0

7 S

7.8

7.5

7.4

7.3

7.2

7.2

7.1

7.2

7.2

7.2

7.1

7.0

7.0

6.95

6.9

7.8

7.3

7.2

7.0

6.9

6.9

7.1

7.5

7.1

7.9

7.7

7.3

6.8

6.7

6 Q

7.0

6.8 

7.0

6.8

6.9 

6.7

6.6

6.6 

6.7

6.7

6.9

7.0

7.1

7.3

7.4

7.5

7.4 

7.3

7.2

7.1 

6.9

6.8

6.7

6.7

6.6

6.5

6.4

Sept.

7.8

7.5

7.3

7.1

7.1

7.1

7.0

6.9

6 9

6.8

6.8

6.7

6.7

6.8

7.1

7.0

7.1

7.2

7.3

7.4

7.3

6.9

6.8

6.8

6.7

6.7

6.6

6.6

6.6

6.3

6.2

6.1

6.0

6.0

5.9 

5.9

5.8

5.7 

5.6

5.6

5.6 

3.6

3.6

3.6

3.5

3.5

3.5

3.5

3.5

3.5 

3.5

3.5

3.5 

3.5

3.5

3.7

3.7

3.7

3.6

Oct.

6.5

6.4

6.4

6.4

6.5

6.5

6.5

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.3

3.5

3.5

3.5

3.6

3.5 

3.5

3.5

3.45 

3.4

3.4

3.4 

3.4

3.4

3.4

3.4

3.4

3.4

3.6

3.7

3.7 

3.7

3.6

3.6 

3.6

3.6

3.6

3.5

3.5

3.5

3.5

Nov.

6.3

6.3

6.3

6.3

6 3

6.3

6.2

6.2

6.2

6.2

6.2

6.1

6.1

6.1

6.1

6.1

6.0

3.5

3.5

3.5

3.5

3.5

3.5 

3.5

3.5

3.5 

3.5

3.5

3.4 

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4 

3.4

3.4

3.4 

3.4

3.4

3.4

3.4

3.4

3.4

Dec.

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6..0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

3.4

3.4

3.45

3.45

3.5

3.45 

3.4

3.35

3.3 

3.4

3.4

3.4 

3.4

3.4

3.6

4.0

4.2

3.9

3.5

3.4 

3.4

3.4

3.4 

3.4

3.4

3.4

3.4

3.4

3.4

3.4

NOTE. New gage at different datum, September 13 to December 31, 1908.
160 SURFACE WATER SUPPLY, 1907-8.

Rating tables for Animas River at Aztec, N. Mex. 

JUNE 14, 1907, TO JULY 4, 1908.

Gage 

height.

Feet.

fi. 00

6.10

6.20

6.30

6.40

6.50

6.60

6.70

Discharge.

Sec.-ft.

270

310

350

400

450

510

570

640

Gage 

height.

Feet.

6.80

6.90

7.00

7.10

7.20

7.30

7.40

7.50

Discharge.

Sec.-ft.

720

800

880

970

1,070

1,180

1,300

1,430

Gage 

height.

Feet.

7.60

7.70

7.80

7.90

8.00

8.10

8.20

8.30

Discharge.

Sec.-ft.

1,570

1,720

1,890

2,080

2,290

2,520

2,770

3,040

Gage 

height.

Feet.

8.40

8.50

8.60

8.70

8.80

8.90

9.00

Discharge.

Sec.-ft.

3,340

3,660

4,000

4,360

4,730

5,110

5,500

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on four discharge measurements made during 1907 and 1908, and is fairly well defined.

JULY 5 TO SEPTEMBER 12, 1908.

[The indirect method for shifting channels used.]

SEPTEMBER 13 TO DECEMBER 31, 1908.

height.

Feet.

3.30

3.40

3.50

Discharge.

Sec.-ft.

180

235

292

height.

Feet.

3.60

3.70

3.80

Discharge.

Sec.-ft.

350

410

471

Gage

height.

Feet.

3.90

4.00

Discharge.

Sec.-ft.

532

594

Gage

height.

Feet.

4.10

4.20

Discharge.

Sec.-ft. 

657 

721

NOTE. The above table is not applicable for ice or obstructed-channel conditions. It is based on 

seven discharge measurements made during 1908 and 1909, and is fairly well defined.

Daily discharge, in second-feet, of Animas River at Aztec, N. Mex., July 5 to September 12,

1908.

Day.

1......

*?

4......

5......

6......

10......

July.

1,230

Aug.

900

955

1,010

Sept.

575

535

495

380

Day.

12......

14......

17......

18......

19

ofi

July.

1,230

1,230

1,160

1,160

1,160

Aug.

790

790

840

945

1,000

1,180

1,320

Sept.

360

350

........

Day.

21......

22......

23......

24......

25. .....

26......

27......

28......

29......

30. .....

01

July.

970

860

810

758

705

706

753

852

800

908

Aug.

1,250

1,180

1,120

1,040

937

880

822

899

772

720

670

Sept.

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Animas River at Aztec, N. Mex., for 1907 and 1908.

Month.

1907.

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

November

The period ....................................

Discharge in second-feet.

Maximum.

5,500 

5,500 

2,520 

1,890 

510 

400 

270

Minimum.

3.040 

1,720 

800 

570 

400 

270 

270

Mean.

4,370 

3,540 

1,300 

903 

472 

337 

270

Run-off 

(total in 

acre- feet).

147,000 

218,000 

79, 900 

53, 700 

29,000 

20,100 

16,600

564,000

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

B.
SAN JUAN RIVER DKAINAGE BASIN. 161

Monthly dischirge of Animas River at Aztcc, N. Mex., for 1907 and 1908 Continued.

Month.

1908.

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

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

November

Discharge in second-feet.

Maximum.

510 

450 

1,890 

1,890 

3,660 

4,360 

3,660 

1,320 

620 

410 

292 

721

4,360

Minimum.

270 

270 

400 

970 

970 

2,080 

705 

670 

292 

235 

235 

180

180

Mean.

329 

336 

1,020 

1,250 

1,880 

3,240 

1,230 

959 

377 

299 

256 

279

955

Run-off 

(total in 

acre-feet).

20, 200 

19, 300 

62,700 

74, 400 

116,000 

193, 000 

75,600 

59,000 

22, 400 

18,400 

15,200 

17,200

693,000

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

D. 

D. 

C. 

A. 

A. 

A.

NOTE. Discharge for period July 5 to September 12, 1908, obtained by indirect method for shifting 

channel.

LA PLATA RIVER AT LA PLATA, N. MEX.

This station, which was established May 25, 1905, to obtain data 

for use by the United States Reclamation Service in connection with 

their proposed La Plata project, is located at a wooden, single span 

highway bridge, about 16 miles northwest of Aztec, N. Mex., and 1 

mile south of La Plata post-office, in sec. 3, T. 31 N., R. 13 W. of New 

Mexico principal meridian. Being located below all the principal 

diversions, the station shows the amount of flood water available 

for storage and irrigation.

The station is below all tributaries and about 15 miles above the 

mouth of the La Plata. The drainage area is about 340 square 

miles.

Nearly all the normal flow of this stream is diverted for irrigation 

above the station, and there are a few small diversions below.

Ice conditions are not very severe, although thin ice frequently 

forms across the stream during the winter period. Thick ice often 

forms along the edges, and slush ice at times interferes with winter 

measurements.

On December 9, 1908, a chain gage was installed on the bridge 

and is read in place of the rod gage, as the latter does not record 

low stages. The datum remained unchanged.

Because of shifting conditions of channel and the uncertainty of 

some of the gage heights the results are not good. 

Discharge measurements of La Plata River near La Plata,- N. Mex., in 1907 and 1908.

Date.

1907.

1908. 

April 11........ 

July 25.. .......

Hydrographer.

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

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

V. L. Sullivan. ..................................... 

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

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

Width.

Feet. 

32

30

5

32

Area of 

section.

Sq.ft. 

69

20

0.9

27

Gage 

height.

Feet. 

3.55

2.00

.60

2.33 

.60

1.33

1.40

Discharge.

Sec.-ft. 

203

27

0.7

73 

«0

61.0

&1.5

o River dry. 

24439 IRE 249 10-

b Discharge estimated.

-11
162 SUKFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of La Plata River near La Plata, N. Mex.,for 1907 and 1908. 

[John Smith, Frank Williams, observers.]

Day.

1907. 

1...............

2...............

3...............

4...............

5...............

tj.... ...........

1.......

8........... ..

g

10........

11........

12........... ..

13...............

14.........

15...............

16..........

17..............

18...............

19...............

20............ ..

21..........

22..... .

23........... .

24...............

25..........

26........

27...............

28. ..............

29...............

30...............

31...............

1908. 

1..... ....... ..

2...............

3

5...............

6............... 

7............. .

8...............

g

10...............

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

19

13...............

14...............

15...............

16...............

17...............

10

19

20...............

91

22

23............... 

24. ..............

oc

26. ..............

97

oo

29. ..............

30. ..............

31

Jan.

.......

0.5

.5

.6

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.7

.7 

.7

.7

.7 

.7

.7

.7

.7

.7

Feb.

.......

.......

0.7

.7

1.0

3

C

1 Q

1.6 

1.4

1.4

1.4

1.6

1.6

1.4

1.2

1.2

1.0

1 9

1.2

1.2

1.4

1.4

2.0

3.0 

2.5

1.6

1.8 

1.8

1.4

1.4

Mar.

i i

1.4

1 9

1 o

1 9

1.4 

1.4

1.2

1 9

1.0

1.0

1 fi

1 3

1.4

1.6

1 S

1.8

2 0

2.0

2.2

2.4

2.4

2.4 

2.2

2.0

1.8 

1.8

2.0

1.8

1 9

2.0

Apr.

...

.......

1 8

1.6

1 5

1.6

1 S

2.0 

1 9

2.0

1 Q

1.9

1 S

1.9

1.8

1.9

2 0

2 2

2.4

2.2

2.4

2.0

1.8

1.9 

1.6

1.6

1.5 

1.5

1.4

1.4

1.3

May.

1.5

1.6

1.6

1.6

1.5

1.5 

1.5

1.5

1.6

1.6

1.5

1.4

1.4

1.3

1.2

1.2

1.2

1.4

1.6

1.8

1.6

1.6

1.8 

1.5

1.3

1.2 

1.2

1.2

1.0

.9

1.2

June.

3.5

3.5

3.4

3.4

3.4

3.3

3.2

q o

3.1

3.1

3.1

2.8

3.4

3.6

3.2

3.2

3.1

3.1

3.2

3.2

3.3

3.2

3.1

3.1

1.4

1.2

1.0

1.0

1.0

1.0 

1.0

1.0

1.0

1.2

1.4

1.2

1.2

1.2

1.2

1.0

1.0

.8

.7

.7

.7

.7

.7

.7

.7

.7 

.7

.7

.7

.7

July.

3.0

3.0 ? n

2.8

2.8

2.6

2.4

2.4

2.2

2.0

9 n

1.6

1.6

1.5

1.5

1.3

1.3

1 3

1.2

1.2

1.2

1.0

1.0

1.0

1.0

4.5

3.0

2.4

1.0

1.0

1.0

0.7

.6

.6

.6

.6

.6 

.6

.6

.6

.6

.6

.6

.5

.6

.6

.7

.7

.7

.6

.6

.6

2.6

.6 

.6

.6

.6 

.5

.5

3.0

,5

2.0

Aug.

1.0

2.0

3.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.2

1.2

1.2

1.2

5.0

3.0

2.6

2.2

3.0

2.6

2.2

2.2

5.15

3.3

2.8

6.6

.6

.7

.6

3.2 

.6

.6

.5

.5

.6

.6

.6

.6

.5

3.2

.8

2.2

2.0

5.6

2.4

1.8

2.0 

2.0

1.8

1.6 

1.4

1.0

Sept.

2.6

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.8

1.8

2.9

2.2

2.0

1.8

1.8

1.6

1.6

1.6

1.4

1.2

1.0

1.0

.......

Oct.

1.0

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.......

Nov.

0.7

.7

.7

.7

. 7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.......

.......

Dec.

0.6

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.5

.6

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.5

.5

.5

.4

.5

1.33

1.4

1.4

1.3

1.3

1.3

1.4

1.5

,.

1.5

1.3

1.4

1.4

1.4

1.3

1.4 

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

NOTE. Gage out of water August 29 to December 8, 1908. During this period the average flow wa§ 

about l second-foot per day. New gage established December 9,1908.
SUKFACE WATER SUPPLY. 1907-8. 163

LITTLE COLORADO RIVER DRAINAGE BASIN. 

DESCRIPTION.

The country drained by Little Colorado River consists of a high 

plateau with an elevation over 4,000 feet above sea level, extending 

from the Continental Divide in northwestern New Mexico westward 

to the San Francisco Mountains in Arizona and from the Grand 

Canyon of the Colorado southward to the Mogollon Mesa. The 

greater part of this plateau is composed of rolling plains with a few 

feet of soil at the surface underlain by rock. Through this plateau 

the river winds northwestward to its junction with the great Colorado.

The run-off from approximately 6,000 square miles of the drainage 

area finds its way into the Little Colorado above the mouth of Rio 

Puerco, the largest tributary, which joins the main stream 2 miles 

above the town of Holbrook, Ariz. Both the Little Colorado and 

Rio Puerco are flashy streams, seldom clear even during low stages. 

They have shifting sandy bottoms, and where not confined in canyons 

the stream beds are wide with abrupt earth banks. The discharge 

fluctuates greatly, being insignificant in dry seasons. The floods 

are short and violent and carry large quantities of silt in suspension.

The following stations have been maintained in this river basin:

Little Colorado at St. Johns, Ariz., 1906-1908. 

Little Colorado at Woodruff, Ariz., 1905-1908. 

Little Colorado at Holbrook, Ariz., 1905-1908. 

Silver Creek near Snowflake, Ariz., 1906-1908. 

Silver Creek at Canyon Station, Ariz., 1906. 

Woodruff ditch at Woodruff, Ariz., 1906. 

Chevelon Fork near Winslow, Ariz., 1906-1908. 

Clear Creek near Winslow, Ariz., 1906-1908.

LITTLE COLORADO RIVER AT ST. JOHNS, ARIZ.

This station, which was established April 18, 1906, to determine the 

amount of water available for irrigation, is located at the south end 

of the town of St. Johns, one-half mile above the dam and county 

bridge. The bed of the stream is clean, sandy, and shifting. Frequent measurements are necessary to properly determine the daily 

flow at this station. The results given in the following tables were 

furnished by the United States Reclamation Service:

Discharge measurements of Little Colorado River at St. Johns, Ariz., in 1907 and 1908.

[By W. D. Rencher.j

Date.

1907.

Gage 

height.

Feet.

4.75

4.66

4.53

4 66

4.87

4.92

4.86

4.84

Discharge.

Sec.-ft. 

67

80

54

36

70

89

69

68

Date.

1907.

March 13.......

March 19.......

March 29.......

Aprill. ........

April 13........

April 19........

Gage 

height.

Feet.

4.91

5.00

5.11

6.40

5.66

5.60

5.50

5.10

Discharge.

Sec.-ft. 

92

75

87

127

430

260

259

220

150

Date.

1907.

April 30........

May 30.. .......

1908.

July 21 <J........

Gage 

height.

Feet. 

4 60

4.56

4.30

4.27

1.10

Discharge.

Sec. -ft.

69

51

49

54

a River bed lately eroded 4 feet deeper.
CO CO tO to tO tO 

h-t O CO 00 ~J Ol

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4k CO CO CO 

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' Cn Cn Ol J J

; 01 -J to to 00

CO COCO CO CO CO

tO tOCn 00 00 CO

 CO COCOCOCO

 to to to to to 

; to to toto to

l-> h- tO tO I-1

8

O H-1 H-1 tO CO 

tOO Cn COO

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4k O tO Cn CO O

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 OOOOOOCOOO 

 Cn Oi 00 H- ' CO

000000000000 

Cn O5 -4 Cn Cn Cn

toto to to to

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00 00 00 COO 

Cn Ol 4k CO Cn

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4k 4k 4k CO CO 

O ^ 00 CO 4k

COCOCOCO CO

to ^h4k Cn CO tO CO

H-1 CO 4k CO CO 

OO to O Cn O

§

00000000 

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Cn Cn Cn Cn O5

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o'Soo^I S

ooooo

h-" to CO COO

o ooo o

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co to to to w co 4k. -j o i i

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tOt CDO? t-'COGOGOCD 

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Cn COOOCn CO

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Cn Cn Cn Cn Cn

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tOOOCnCn

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LITTLE COLORADO EIVEfc DKAlHA&E BASIN. 165

Daily discharge, in second-feet, of Little Colorado River at St. Johns, Ariz.,for 1907.

Day.

1............

2............

5............

6............ 

7............

9............ 

10............

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

12............

iq

14............

15............

Jan.

64

54

63

78

67

70 

73 

74

74 

80

82

74

68

64

Feb.

53

70

67

67

66

73 

83

89 

75 

75

72

68

68

fiQ

Mar.

88

86

80

85

85

75 

80

100 '95

85

92

86

Apr.

386

403

286

296 288'

215

259 001

278 

281

275

506

248

270

May.

70

68

60

. 54

51

49 

47

41 

39

37

37

36

35

Day.

16............

17............

18............

19............

20............

21............ 

22............ 

23............

24............ 

25............

26............

27............

28............

29............

30............

Jan.

60

60

58

50

50

57 

50 

36

37 

39

42

45

41

41

41

43

Feb.

75

76

80

80

75

68 

68 

68

90 

95

92

92

90

Mar.

76

80

82

127

183

259 

350

428

386 

368

356

331

302

265

254

245

Apr.

193

178

161

149

144

141 

138 

130

118 

100

81

70

65

69

69

May.

37

35

34

33

32

32 

30 

29

29 

27

27

27

32

33

46

48

NOTE, These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Little Colorado River at St. Johns, Ariz,for 1907.

Month.

February

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

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

Discharge in second-feet.

Maximum.

82 

95 

428 

o554 

70

Minimum.

36 

53 

75 

65

27

Mean.

58.0 

75.4 

173 

210 

39.8

Run-off 

(total in 

acre-feet).

3,570 

4,190 

10,600 

12,500 

2,450

o Maximum recorded discharge for the month, April 2, 1907. 

LITTLE COLOEADO EIVEE AT WOODEUFF, AEIZ.

This station, which was established March 16, 1905, and was discontinued December 31, 1908, was located about 100 yards below 

the crossing of the Holbrook-Winslow wagon road and one-fourth 

mile below the Woodruff dam.

The station equipment, which was carried away by the flood of 

November 26 and 27, 1905, was replaced March 24, 1906. The object 

of the station was to determine the amount of water available for 

irrigation. The bed of the stream is sandy and shifting, and frequent 

measurements are required to determine the daily flow.

The results published in the following tables were furnished by the 

United States Reclamation Service.

Discharge measurements of Little Colorado River at Woodruff, Ariz., in 1907. 

[By Newman, Wakefleld, and Conner.]

Date.

January 1 . .

January 5 . .

January 7 . .

January 10 .

January 13.

January 16.

January 20.

February 1. .

Gage 

height.

Feet. 

0.50

.70

1.80

4.90

1.70

1.00

1.10

2.60

Discharge.

Sec.-ft 

50

74

170

1,010

164

51

42

457

Date.

February 26. .

March 12.......

Gage 

height.

Feet. 

1.30

1.20

1.20

1.00

1.00

.80

1.00

.80

Discharge.

Sec.-ft. 

203

161

176

66

63

67

215

62

Date.

March 26. ......

April2. ........

April 9.........

April 16........

April 23. .......

April 30. .......

Gage 

height.

Feet. 

0.80

1.00

1.50

1.50

.20

.20

.20

Discharge.

Sec.-ft. 

63

174

266

260

62

5-t

44

NOTE. No discharge measurements were made during the remainder of 1907 and 1908.
166 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Little Colorado River at Woodruff, Ariz., for 1907 and 1908.

Day.

1907. 

1. ....................

2

3.....................

4.....................

6.....................

8.....................

9

10.....................

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

12.....................

13........ ............

14.....................

15. ....................

16.....................

17... ..................

18.....................

19.....................

20. ....................

21.....................

22. ....................

23.....................

24.....................

25.....................

26........... ......... .

27.....................

28.....................

29.. ...................

30.....................

31.....................

1908. 

1.....................

2.....................

3.....................

5..................... 

6.....................

7.....................

g

10. ....................

12.....................

13.....................

16.....................

18.....................

1Q

20.. ...................

21.....................

23.....................

24.....................

25.....................

20.....................

27.....................

28.....................

29.....................

on

31.....................

Jan.

1.15

.6

.75

.65

1.3

2.65

2.85

4.0

2.95

2.4

1.4

1.3

1.0

1.0

1.15

1.25

1.0

.7

.55

1.85

.55 

.45

.10

.15

1 ^

OA

.10

.10

.25

OA

.40

25

OA

.30

OA

.30

OA

.20

OA

.10

Feb.

2.8

1 9

1.4

1.3

1.1

1.05

1.0

.8

.75

.75

.5

.35

9

.25

.3

.7

.35

.55

.7

.6

4.50

3.90

1.75

1.10

1.10

.90

.80

.70

.55

40

.45

KK

.95

1.85

2.50

1.65

1.50

1.10

Mar.

0.35

.45

2.3

1.3

.8

.7

.6

.5

.5

.5

.45

.5

2.95

2.15

1.75

1.7

1.8

1.75

1.0

.85

.70

.55

.50

11.50

5.75

1.50

1.40

1.30

1.30

.50

1 50

1.40

1.30

1.20

1.20

1.20

1.20

1.00

Apr.

1.57

1.3

1.35

1.3

1 9*.

1.2

1.15

1.2

1.1

1.1

1.1

1.05

.95

g

.6

.2

1 ^

.58

.58

.5

.45

90

.80

80

.60 

.40

.40

.40

.65

80

.85

.85

.75

.65

.60

CK

OA

.25

.30

.20

.15

May.

oc

.15

.15

July.

1.15

.15

.8

.0

2

.50

.30

.55

2.05

2.15

.95

1.70

2.25

2.90

3.65

2.10

Aug.

0.8

1 ^

Q

1.2

.7

1.55

f.

4

£

.7

1.05

1.0

9 9K

1.75

1.0

3.2

2.35

7 ^

4.0

3 45

8.5

1.65

2 40

3.65

4.95

7.00

3.35

3.05

3.90

1 50

7.50

.85

2.55

6.95

3.75

3.60

1 90

1.25

95

2.75

1.80

1.35

Sept.

3.95

3.1

9 Z

2.2

4.0

3.05

1 4^

1.55

1

0

1.65

1.4

1.2

1.1

2 2

1.1

q

Q

75

.8

.85

.7

.45

OK

.3

.2

1.05

3.60

1.50 

1.10

:::::::

Oct.

0.1

3

.5

3

.05

1.7

.35

.2

1 9

3.65

1.6

1 1 ^

1.1

95

Q

.......

1.45

Nov.

1 7C

^

.4

.5

1.1

.65

.75

1 9

1.0

cc

.3

.35

3

3

.3

.......

Dec.

0

0

3

3

0

3

25

.2

.15

.25

.15

25

.25

.1

1.45

11 50

4 90

.10

.40

f\Z

.40

.05

NOTE. The water surface was below the gage for all missing days of 1907 and 1908.
LITTLE COLORADO RIVER DRAINAGE BASIN. 167

Daily discharge, in second-feet, of Little Colorado River at Woodruff, Ariz.,for 1907.

Day.

1............

2..... .....

3............

4............

5............

6............ 

7............

9............

10............

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

12............

13............

14............

15............

Jan.

55

50

40

30

74

60 

170

425 

790

495

350

115

100

56

Feb.

515

330

220

200

150

160 

168

125 

115

80

66

66

65

63

Mar.

45

50

80

120

175

550 

485

130 

100

70

62

62

62

62

Apr.

285

266

260

260

265

260 

265 

260

260 

240

200

200

150

140

100

May.

30

25

20

10

Day.

16............

17............

18............

19............

20............

21 ............

22............ 

23............

24............ 

25............

26............

27............

28............

29............

30............

31............

Jan.

51

80

95

55

42

40 

40 

40

40 

40

40

40

40

40

310

1,030

Feb.

55

60

63

70

65

67 

64 

60

55 

65

67

65

50

Mar.

62

62

62

63

63

63 

63 

1,810

560 

400

174

170

175

180

175

160

Apr.

62

60

58

56

50

40 

30 

54

70 

70

50

50

50

44

May.

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Little Colorado River at Woodruff, Ariz.,for 1907.

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

Discha

Maximum.

ol,180

a 1,990

rge in second

Minimum.

30

45

30

-feet.

Mean.

168

117

210

Run-off

acre-feet).

10,300

6,500

12,900

8,330

a Maximum recorded discharge for the month. These occurred on January 31, February 1, and 

March 23.

LITTLE COLORADO EIVEE AT HOLBEOOK, ARIZ.

This station, which was established March 17, 1905, to determine 

the amount of water available for irrigation, was discontinued December 31, 1908. It is located at the county bridge across Little Colorado 

River at Holbrook, Ariz.

The bed of the stream is sandy and shifting, and frequent discharge 

measurements are required to properly determine the daily flow.

The results presented in the following tables were furnished by the 

United States Reclamation Service:

Discharge measurements of Little Colorado River at Holbrook, Ariz., in 1907. 

[By Conner and Wakefleld.]

Date. Gage 

height.

Feet. 

4.70

4.80

4.90

5.00

4.80

4.70

5.10

5.00

5.00

5.10

5.00

4.80

Discharge.

Sec.-ft. 

167

302

149

374

206

91

371

190

73

120

108

103

Date.

Do.........

March 11.......

Do.........

March 18.......

March 22.......

March 25.......

March 29.......

Aprill. ........

Gage 

height.

Feet. 

5.10

5.00

5.20

5.90

4.80

4.80

4.70

4.90

4.80

5.20

5.20

5.00

Discharge.

Sec.-ft. 

124

141

254

960

217

136

115

124

115

824

832

547

Date.

Aprils.........

April 15. .......

April 19........

April 22........

April 29. .......

May3..........

July 19.........

July 23.........

Gage 

height.

Feel.

5.00

5.00

5.00

5.00

5.00

5.00

5.00

5.10

5.30

Discharge.

Sec.-ft. 

550

573

320

329

294

9QS

352

322

618

925

NOTE. No measurements made during the remainder of 1907 and 1908.
168 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Little Colorado River at Holbrook, Ariz.,for 1907 and 1908.

Day.

1907. 

1

3..............

4...............

6...............

8...............

9...............

10...............

12. ..............

13............... 

14......... ... . 

15...............

17...............

18

19. ..............

21. ..............

22...............

23...............

24. ..............

25...............

26. ..............

27...............

OO

29. ..............

30...............

31...............

1908. 

1............... 

2......... .. 

3...............

4. .............. 

5..............

6...............

7............... 

8...............

9............... 

10...............

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

12...............

13. ..............

14...............

15....... ......

16...............

17...............

18...............

19...............

30. ..............

21........... ...

22...............

23............... 

24...............

25............... 

20...............

27...............

28...............

29...............

30. ..............

Jan.

4.8 

4 8

4.8 

4 8

4.8

5.0

5.G

C\ 3^

5.1 

5.0 

5.0

5.0

5.0

4.75

4.8

5.0

5.0

c O

5.0

5.0

5.0

5.0

6.0

4.3 

4.55 

5.0

4.8 

4.7

4.6

4.5 

4.4

4.3 

4.2

4.2 

4.2

4.2

4.2

4.4

4.4

4.4

4.4

4.4

4.6

4.8 

4.8

4.8 

4.8

4.8

4.8

4.8

4.8

4.75

Feb.

5.3

5.1

5.1

K f\

5.0

5.0

5.15

5.1

5.05 

5.0 

5.0

5.0

5.0

5.0

5.1

5.0

5.0

5.0

4.8

5.2

5.1

4.7 

4.7 

4.7

4.7 

5.2

5.4

5.0 

5.0

5.0 

5.0

5.3 

5.5

5.15

5.6

5.4

5.4

5.0

5.0

5.0

5.0

5.0

7.3

7.1

5.3 

5.0

4.6

4.6

Mar.

5.0

K O

5.0 

5.1

5. 65

5.8

5.65

4.8

4.8

4.8

4.7 

4.7 

4.7

4.9 

4.9

4.85

4.8

4.8

4.8

6.7

5.2

5.1

5.3

c q

5.2

5.2

5.1

4.5 

4.4 

4.4

4.4 

6.3

5.3

5.3 

4 9

4.8 

4.8

4.65 

4.5

4.35

4.2

4.1

4.3

4.0

4.3

4.0

4.0

4.0

4.0

4.0 

4.0

4.0 

4.75

5.3

5.0

4.0

4.0

4.0

Apr.

5.0 

5.0

5.0

5.0 

5.0

5.0

5.0

5.0

5.0

5.1

5.1

5.0

5.0 

5.0 

5.0

5.0

5.0 

5.0

5.0

5.0

5.2

5.15

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

4.0 

4.0 

4.5

5.0 

5.0

5.0

4.8 

4.8

4.8 

5.05

5.3 

5.0

5.0

4.8

4.65

4.5

4.25

4.35

4.1

4.0

4.0

4.0

4.0 

4.5

4.0 

4.0

3.9

3.8

3.8

3.7

May.

5.0

4.9

4.9

4.85

4.8

4.75

4.7

4.7

4.7

4.6

4.55 

4.45 

4.4

4.4 

4.4

4.3

4.3

4.3

4.3

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.6

5.0

3.6 

3.8 

4.0

3.9 

3.8

3.7

3.6 

3.6

3.6 

3.6

3.5 

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4 

3.0

3.0 

3.0

3.0

2.9

2.9

2.9

2.5

June.

5.0 

4.75

4.7

4.6 

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6 

4.6 

4.6

4.6

4.6 

4.6

5.0

4.9

4.8

4.7

4.55

4.45

4.35

4.2

4.05

4.0

4.0

4.0

2.5 

2.45 

2.45

2.45 

2.45

2.45

2.0 

2.0

2.0 

1.9

1.9 

1.9

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6 

1.6

1.6 

1.6

1.6

1.6

1.6

1.6

July.

5.0 

4.75

4.7

4.6 

4.6

4.6

4.0

4.0

4.5

4.9

4.65

4.45

4.4 

4.2 

4.0

4.0

4.0 

4.0

4.0

5.0

4.7

4.65

4.5

4.4

4.4

5.0

5.0

4.9

4.8

4.8

4.8

1.6 

1.6 

1.6

1.6 

1.6

1.6

1.6 

1.6

1.6 

1.6

1.6 

1.6

1.6

1.6

1.6

1.6

1.6

4.5

3.0

3.4

3.8

4.4

5.2 

5.0

3.9 

3.8

3.8

3.8

3.8

4.0

5.0

Aug.

4.8

5.8

7.0

6.6 

6.65

5.0

5.0

4.9

4.7

4.6

4.6

4.6

5.0 

5.0 

5.0

5.0

5.0 

5.0

5.0

5.0

5.0

5.0

5.0

5.0

6.6

6.0

6.8

6.0

6.0

6.0

4.0 

5.0 

4.5

4.5 

4.5

4.5

5.0 

7.0

7.0 

7.0

7.0 

5.0

5.5

5.5

5.5

5.6

6.5

7.0

6.5

4.5

4.0

4.0

Sept.

5.7 

5.45

5.0

5.0

5.5

5.0

5.0

5.0

5.0

4.9

4.8

4.6

6.0 

5.0

4.8

4.8

4.7 

4.7

4.65

4.6

4.6

4.5

4.4

4.3

4.1

4.05

4.0

4.0

4.0

4.0

4.8

4.8

4.8

4.8 

4.2

5.4 

5.2

5.0

5.0

4.7

4.7

Oct.

3.9

3.8

3.8

3.8 

3.8

4.75

3.7

3.7

3.7

3.65

3.6

3.6

3.6 

3.6 

5.0

5.0

5.3 

5.05

4.8

4.55

4.5

4.0

3.0

8.0

8.0

7.0

6.4

6.0

5.0

4.0

4.0

4.7 

4.6 

4.6

4.5 

4.5

4.3

4.15 

4.0

4.0 

4.0

4.5 

5.0

5.4

5.4

5.0

4.9

4.8

5.8

5.8

5.4

5.0

4.9

4.7 

4.4

4.4 

4.4

4.4

4.4

3.9

3.8

3.8

Nov.

4.0 

4.0

4.0

4.0 

4.0

4.0

4.0

5.0

4.9

4.5

4.4

4.4

4.4 

4.4 

4.4

4.4

4.4 

5.0

4.9

4.8

4.75

5.0

4.9

4.8

4.75

4.65

4.65

4.5

4.45

4.4

3.8 

3.75 

3.7

3.7 

3.65

3. 6

3.55 

3.5

3.45 

3.35

3.2 

3.3

3.3

3.3

3.25

3.2

3.15

3.0

3.0

3.0

3.0

3.0

3.0 

3.0

3.3 

3.3

3.3

3.3

3.3

3.3

Dec.

3.3 

3.3 

3.6

3.9 

4.0

4.0

4.0 

3.9

3.9 

3.7

3.6 

3.6

3.6

3.8

4.7

6.5

5.5

4.6

4.4

4.3

4.1

4.0

4.0 

3.9

3.8 

3.8
LITTLE COLORADO EIVEK DRAINAGE BASIN. 169

Daily discharge, in second-feet, of Little Colorado River at Holbrook, Ariz.,for 1907.

Day.

1. ..............

2...... .......

3...............

4...............

6...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

Jan.

160

167

210

240

270

302

300

300

300

400

700

600

500

400

374

Feb.

380

380

374

370

280

190

190

190

190

180

170

130

73

80

Mar.

120

141

220

607

900

600

300

250

217

200

180

160

Apr.

547

550

550

550

550

550

560

573

550

540

460

321

320

320

320

Day.

16...............

17...............

18...............

19...............

20...............

21

22...............

23...............

i 24...............

2

S

, 26...............

27...............

28. .............

29...............

30 ..............

31.. .............

Jan.

370

360

350

250

206

200

180

180

150

110

91

90

90

100

100

500

Feb.

85

90

95

100

119

110

108

106

105

103

103

300

123

Mar.

115

124

124

122

121

118

115

1,800

824

800

840

832

800

700

Apr.

320

329

330

340

294

290

295

300

OOA

352

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Little Colorado River at Holbrook, Ariz.,for 1907.

Month.

January.... .......... ... .... ..." ... ... ..............

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

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

Discharge in second-feet.

Maximum. 1

a 1,000 

380 

a 2, 100 

573

Minimum.

90 

73 

115 

290

Mean.

276 

176 

444 

401

Run-off 

(total in 

acre-feet).

17,000 

9,780 

27,300 

23,900

a Maximum recorded discharge for the month. These occurred on January 11 and March 23. 

SILVER CREEK AT SNOWFLAKE, ARIZ.

This station, which was established May 4, 1906, to determine the 

amount of water available for irrigation, is located at the southeast 

end of the town of Snowflake, Ariz., and 2 miles below the dam of 

Snowflake and Taylor Irrigation Company. All water is shut off by 

the dam during the entire irrigation season, except when rains occur.

Owing to shifting conditions of channel, frequent measurements 

are required to properly determine the relation between discharge 

and stage.

The discharge measurements taken on Silver Creek near Snowflake 

in 1907 show no relation to the gage heights; hence it is impossible 

to make a rating table or curve of any value for interpolation.

The results published in the following tables are furnished by the 

United States Reclamation Service:

Discharge measurements of Silver Creek River at Snowflake, Ariz., in 1907. 

[By Newman, Wakefleld, and Conner.]

Date.

February 19 .

Gage 

height.

Feet. 

2.80

2 90

2.70

3.20

2.00

1.00

Discharge.

Sec-ft. 

15

25

36

32

52

12

20

34

Date.

Do ..........

March 13.......

Gage 

height.

Feet. 

1.12

2.00

2.20

3.00

1.60

2.00

1.60

Discharge.

Sec-ft. 

43

145

196

101

14

10

21

Date.

March 21 .......

March 27 .......

March 28.......

Aprils.........

April4. ........

April 10........

April 11........

Gage 

height.

Feet. 

2.00

2.60

2.60

2.70

2.50

2.70

2.50

Discharge.

Sec-ft. 

6

97

50

133

48

130

46

NOTE. Zero flow recorded April 17,18, 24, 25, and May 1 and 2,1907.
170 SURFACE WATER SUPPLY, 1907-8.

Daily gage height, in feet, of Silver Creek River at Snowflake, Ariz,, for 1907 and 1908.

Day.

1907. 

1. ..............

3............... 

4...............

5...............

6...............

7...............

8...............

10...............

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

12...............

13...............

14...............

15. ..............

16...............

17...............

18...............

19...............

20...............

21...............

22....... .......

23...............

24...............

25. ..............

26...............

27...............

28...............

29...............

30...............

31...............

1908. 

1...............

2

4 ..............

5...............

6...............

8.'.'.'.'.'.'.'.'.".".'.'.

9...............

10...............

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

12...............

13........... ...

14...............

15...............

If................

17...............

18...............

19...............

20. ..............

21............... 

22...............

23...............

24...............

25. ..............

26...............

27...............

28...............

29............... 

30

01

Jan.

2.85

2.70

2.70 

2.70

2.68

2.72

2.70

2.80

3.45

6.65

7.25

5.60

4.65

4.35

3.77

2.80

3.75

4.72

4.10

3.52

3.47

3.05

2.80

2.75

2.75

2.77

2.78

2.78

2.70

2.90

8.60

1.95

1.95

2.00

2.00

2.05

2.10

2.10

2.10

2.10

2.10

2.10

2.10

2.10 

2.10

2.10

2.10

2.10

2.05

2 05

2.18

2.10

Feb.

5.35

3.75

3.45 

3.40

3.37

3.30

3.20

3.05

2 go

2.65

2.60

2.50

2.30

2.20

2.07

2.05

2.10

2.65

2.77

2.58

2.37

2.35

2.30

2.77

2.65

2.45

2.40

2.40

2.05

2.00

1 98

7.00

5.08

4.72

4.00

3.05

2.75

2.55

2.45

2.40

2.32

2.30

2.22

2.15

2.20

2.25

2.25

2.25 

8.95

7.00

6.05

4.40

3.70

3

AK.

3.08

Mar.

2.40

2.50

2.55 

2.95

2.97

5.62

4.25

2.70

2.60

2.55

2.37

2.22

2.20

2.15

2.12

2.10

2.08

2.02

2.00

2.00

2.00

2.00

7.00

5.25

3.52

2.90

2.35

2.30

2.30

2.30

2.30

2.95

2.90

2.90

2.95

6.60

4.35 

3.35

3.10

2.75

2.65

2.45

2.30

2.25

2.20

2.20

2.20

2.15

2.15

2.15

2.15 

2.15

2.10

2.10

2.10

2.10

2.10

2.10 

2.10

2.10

Apr.

2.20

2.10

2.22 

2.63

2.07

2.00

2.00

1.87

1.82

1.77

1.75

1.75

1.75

1.72

1.70

1.70

1.65

1.65

1.65

1.65

1.67

1.72

1.77

1.75

1.70

1.67

1.65

1.62

1.60

2.05

2.05

2.00

2.00

2.00

2.00

2.00 

2.00

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.85

1.85

1.80 

1.80

1.80

1.80

1.80

1.80

1.80

1.80

1.80 

1.80

May.

1.60

1.60

1.60 

1.60

1.60

1.60

1.60

1.60

1.60

3.60

1.60

1.60

1.70

1.60

1.60

1.60

1.60

1.60

1.60

1.60

1.60

1.62

1.62

1 60

1.62

1.62

1.65

2.50

2.05

1.75

1.80

1.80

1.80

1.80

1.80

1.80

1.80 

1 80

1.80

1.80

1.80

1.80

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75 

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75 

1.75

1.75

June.

1.70

1.73

1.70 

1.75

1.75

1.75

1.75

1.75

1 7^

1.73

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.70

1.75

1.75

1.75

1.75

1.75

1.75

1.75 

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75 

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75 

1.75

July.

1.68

1.68

1.65 

1.65

1.63

1 60

1.60

5.82

1.75

1.70

1.70

1.70

2.45

1.98

1.95

1.93

1.93

1.90

1.90

2.18

2.35

1.83

1.80

1.95

1.97

1.75

1.70

2.25

2.00

1.75

1.75

1.75

1.75

1.75

1.75

1.75 

1.75

1.75

1.75

1.88

1.75

1.75

1.75

1.75

5.10

2.88

2.40

2 28

2.10

2.10 

2.10

2.10

2.00

2.00

2.20

3.10

2.90

2.35 

2.25

2.10

Aug.

1.78

2.65

2.70 

2.40

2.45

1.95

1.80

1.80

1 7S

1.75

1.75

1.73

1.70

1.78

2.45

2.10

1.85

1.80

3.15

2.15

2.05

2.00

1 98

1.90

1 90

1.88

1.90

5.25

2.30

5.00

2.85

2.10

3.15

3.25

2.28

2.20

2.25

2.25 

3.88

4.55

5.68

4.15

3.30

3.18

3.00

3.00

3.00

4.50

5.95

7.38

4.02

3.12

2.78

2.65

2.65

2.82

6.00

3 95

3.00

2.80 

2.50

Sept.

2.10

2.10

3.65 

2.45

2.25

2.10

2.02

2.05

2 ()K.

2.05

2.02

2.05

2.05

2.15

2.00

1.92

1.90

1.90

1.90

1.85

1.82

1.80

1.80

1.75

1.75

1.70

1.70

1.67

1.67

1.70

2.40

2.50

3.95

2.70

2.50

2.25

2.15 

2.10

2.45

2.65

2.05

2.00

2.00

2.00

2.00

2.00

2.00

2.00

1.90

1.90

1.90 

1.85

1.80

1.80

1.80

1.80

1.80

1.80

Oct.

1.70

1.70

1.70 

1.70

2.15

2.08

1.98

1.95

1 95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

2.50

2.68

2.45

2.35

2.30

5.65

4.75

3.62

2.75

2.55

2.40

2.32

2.30

2.25

1.80

1.80

1.80

1.80

1.80

1.80 

1.80

1.80

1.80

1.80

1.80

1.80

1.80

1.80

1.80

1.80

2.10

2.38

2.35

2.25 

2.22

2.18

2.15

2.15

2.10

2.10

1.58

1.98 

1.90

1 90

Nov.

2.30

2.30

2.30 

2.30

2.20

2.15

2.12

2.95

2

KO

2.20

2.20

2.20

2.20

2.20

2.20

2.15

2.10

2.10

2.10

2.10

2.10

2.05

2.05

2.00

1.95

1.90

1.90

1.85

1.85

1.85

1.90

1.90

1 90

1.90

1.90

1.90

1.90 

1 90

1.90

1.90

1.90

1.90

2.00

2.00

1.98

1.95

1.90

1.90

1.90

1.85

1.80 

1.80

1.80

1.80

1.80

1.90

2.00

2.00

2.00 

1.90

Dec.

1.85

1.85

1.85 

1.85

1.85

1.85

1.85

1.85

1 Q9

1.95

1 95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

1.95

2.00

2.05

2 no

1.98

1.95

1.90

1.88

1.90

1 90

1.85

1.85

2.20

2.00

2.00

2.00 

2.00

1.95

1.95

1.90

1.90

1.85

1.85

1.85

2.50

8.00

4.90

4.40

4.50

4.10 

3.70

3.30

2.90

2.50

2.10
LITTLE COLOEADO RIVER DRAINAGE BASIN. 171

CHEVELON FORK NEAR WINSLOW, ARIZ.

This station, which was established December 18, 1905, to determine the amount of water available for irrigation, was discontinued 

December 13, 1908. It was located above the mouth of the river, 

in sec. 34, T. 18 N., R. 17 E., 19 miles east of Winslow, Ariz.

Conditions of flow are changeable, requiring frequent measurements 

to properly determine the daily discharge.

The results published in the following tables were furnished by the 

United States Reclamation Service.

Discharge measurements of Chevelon Fork near Winslow, Ariz., in 1907. 

[By Newman, Wakefleld, and Conner.]

Date. Gage 

height.

Feet. 

2.6

1.7

1.2

3.2

2.7

2.0

Discharge.

Sec.-ft. 

56

35

567

301

83

Date.

February 23....

March 2.. ......

A! arch 9

March 23.......

Gage 

height.

Feet. 

1.76

1.76

4.0

1.5

2.9

Discharge.

Sec.-ft. 

132

151

485

99

1,010

128

Date.

April 6.........

April 13........

April 20........

April 27. .......

Gage 

height.

Feet.

.0

 .2

Discharge.

Sec.-ft. 

149

33

18

24

34

NOTE. No measurements made after May 4,1907. 

Daily gage height, in feet, of Chevelon Fork near Winslow, Ariz., for 1907 and 1908.

Day.

1907. 

1...............

3...............

4...............

5...... .........

9

10............... 

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

13...............

14...............

15...............

16...............

17...............

18............... 

19...............

20...............

21...............

22...............

23............... 

24.......... ....

25............... 

26. ..............

27...............

00

29...............

30. ..............

31...............

Jan.

1.4

1.1

1.2

1.0

1.5 

1.4

1.2

1.3 

1.3

1.2 

2.0

2.6

2.6

9 2

1.8

2.0

2.0

1.9 

1.6

1.5

1.2

1.2

1.3 

1.2

1.2 

1.2

1.1

1.1

1.1

1.1

Feb.

3.4

3.2

3.0

2.6

2.6 

3.0

3.0

2.9 

2.5

2.3 

2.2

2.0

1.8

1.7

1.8

2.0

1.4

1.2 

1.2

1.2

1.2

1.2

1.2

4.2

3.0 

2.2

1.8

1.5

Mar.

1.4

1.4

1.4

1.5

2.0 

3.6

4.1

2.4 

2.0

2.4 

2.2

2.0

2.0

1.9

1.7

1.4

1.3 

1.8

2.0

2.0

1.9

1.9 

13.4

13.2

Apr.

.......

.......

0.4

.3

.3

.3

.3 

.3

.3

.2

.2

.2 

.1

.1 

.0

.0

- .1

- .1

May.

-0.2

- .2

- .2

_ 2

_ 3 

- .3

- .4

- .4

 *- .4

- .6

- .6

- .6

- .7

- .7

- .7

 .7

 

_

_

_

__ -7

- .7

June.

-0.8

- .8

- .8

- .8

__ Q

 Q

2.6

2.6 

2.6

2.6 

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6 

2.6

2.6

2.G

2.6

2.6 

2.6

2.6 

2.6

2.6

2.6

2.6

July.

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6 

2.6

2.6 

2.6

2.6

2.6

2.4

2.4

2.4

2.4

2.4 

2.4

2.4

2.4

2.4

3.5

2.7

2.5 

2.3

2.3

2.3

2.3

2.3

2.3

Aug.

2.3

2.3

2.3

2.3

2.3 

2.3

2.3

2.5 

2.5

2.3 

2.3

2.3

2.6

2.8

2.9

3.0

2.9

2.7

2.6

2.5

2.7

2.7

2.6 

2.5

2.4 

2.4

2.4

2.4

3.1

2.7

Sept.

2.5

2.5

3.8

3.6

2.9 

2.8

2.7

2.6 

2.5

2.3 

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2 

2.2

2.2 

2.2

2.2

2.2

2.2

2.2

Oct.

2.2

2.2

2.2

2.3

2.3 

2.3

2.3

2.3 

2.3

2.3 

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.7 

2.6

2.5

2.5

2.5

3.7 

3.4

5.2

4.8

4.2

3.7

3.8

3.4

Nov.

3.3

3.2

3.6

3.6

3.5 

3.4

3.3

3.1 

3.1

3.0 

2.9

2.8

2.7

2.6

2.8

2.8

2.9

3.5 

3.0

2.7

2.6

2.5

2.5 

2.9

3.4 

3.4

3.3

3.2

3.1

3.5

Dec.

3.6

3.4

3.2

3.2

3.1 

3.1

3.0

2.9 

2.8

2.8 

2.7

2.6

2.6

2.5

2.5

2.4

2.4

2.4 

2.3

2.3

2.2

2.3

2.3 

2.3

2.3 

2.3

2.3

2.2

2.2

2.2
172 SUEFACE WATEK, SUPPLY, 1907-8.

Daily gage height, in feet, of Chevelon Fork near Winslow, Ariz., for 1907 and 1908 Con.

Day.

1908. 

I...... .........

2...............

3...............

4...............

5...............

6...............

7...............

8. ..............

9.. .............

10...............

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

12...............

13...............

14...............

15...............

16...............

19

20...............

21...............

22...............

23...............

24...............

26............... 

27......... ......

28...............

29...............

30. ..............

31...............

Jan.

2.2

2.2

2.3

2.2

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3 

2.3

2.3

2.3

2.3

2.3

Feb.

2.3

2.3

2.3

2.3

4.1

5.0

4.7

4.5

4.3

4.2

4.0

3.9

3.8

3.9

4.0

3.8

3.7

3.7

3.6

3.6

3.6

5

r\

4.8 

4.8

5.2

5.5

Mar.

5.5

5

C

5.2

5.0

19.0

14.1

11.2

9.0

8.4

7.3

6.6

6.2

6.0

5.8

5.6

5.4

5.6

5.8

6.1

6

0

6.5

6

K

6.6

6.6 

6.6

6.6

6.6

6.6

6.2

Apr.

6.1

6.0

5.2

5.8

6.4

6.6

6.6

6.7

6.7

6.8

6.8

6.9

6.9

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0 

7.0

6.8

6.8

6.8

May.

6.7

6.7

6.8

6 9

7.0

7.0

6.1

6.2

6.5

6.6

6.7

i\ Q

6 9

7.0

7 9

7.3

7.4

7.5

7 ^

7.4

7 %

1 %

7.5 

7.5

7.6

7.6

7.6

7.6

June.

7.6

7.7

7.7

7.7

7.7

7.8

7.6

6.6

6.6

6.7

6.7

6.7

6.8

6.8

6.6

6.6

6.6

6:6

6.6

6.8

fi 8

6.8

6.8

6.8

6.9 

6.8 f; 7

5.6

5.4

July.

5.5

6.2

6.8

fi Q

4.9

4.8

4.8

4.8

4.7

4.5

4.4

4.4

4.4

4.5

4.5

4.5

4.5

4

K

4.5

4.5

4.5

4.5 

4.4

4.3

4.4

4.5

Aug.

4.5

4.3

4.3

4.4

4.2

4.3

4.4

4.5

4.5

4.5

4.6

4.7

4.8

4.9

4.9

4.5

4.7

4.2

3.4

3.8

4.0

3.9 

4.0

4.1

4.0

4.0

4.2

Sept.

4.3

4.0

3.8

4.2

4.4

4.6

4.6

4.8

4.4

4.5

4.6

4.6

4.8

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0 

5.0

5.0

5.0

5.0

Oct.

5.0

5.0

5.0

5.0

4.9

4.9

4.8

4.8

4.8

4.8

4.8

4.8

4.8

4.8

4.8

4.8

4.9

4.4

4.2

4.2

4.0

4.0

4.0

4.0

3.9 

3.9

3.9

3.9

3 9

3.9

Nov.

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7 

3.7

3.7

3.7

3.7

Dec.

3.6

3.6

3.0

3.4

3.6

3.6

3.7

3.8

3.7

3.7

3.7

3.7

CLEAR CREEK NEAR WINSLOW, ARIZ.

This station, which was established June 13, 1906, to determine the 

quantity of water available for irrigation, is located 6 miles from 

Winslow and 3 miles above the Clear Creek Irrigation Company's 

dam and the county bridge. It is one-half mile above the pump 

house. The bed of the stream is strewn with large bowlders and is 

permanent.

The results given in the following tables were furnished by the 

United States Reclamation Service.

Discharge measurements of Clear Creek near Winsloiv, Ariz., in 1907. 

[By R. M. Imel.]

Date.

February 20....

Gage 

height.

Feet. 

8.00

6.00

Discharge.

Sec.-ft. 

1,510

843

Date. Gage 

height.

Feet. 

5.04

8.04

Discharge.

Sec.-ft. 

552

1,750

1

Date.

March 2...... . March 9........

Gage 

height.

Feet. 

5.04

6.80

Discharge.

Sec.-ft. 

583

1,110
LITTLE COLOEADO EIVEE DEAINAGE BASIN. 173

Daily gage height, in feet, of Clear Creek near Winslow, Ariz.,for 1907 and 1908.

Day.

1907.

2...............

3...............

4.. .............

5.......-..-..-.

6...............

8............... 

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

18........ .......

19

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

9Q

30...............

31...............

1908. 

1..............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9

10...............

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

12............... 

13:..............

14............... 

15...............

16...............

17...............

18...............

19............... 

20...............

21...............

22...............

23...............

24...............

25...............

26............... 

27...............

28............... 

29............... 

30...............

31...............

Jan.

4.2

3.9

3.6

3.4

3.4

3.8

3.5

3.5 

3.4

3.4

3.4

5.3

5.0

4.5

4.2

4.0

3.8

3.7

3.7

3.6

3.6

3.5

3.5

3.4

3.3

3.4

3.4

3.4

3.5

3.6 

2.4

2.4

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3 

2.3

2.3 

2.3

2.3

2.3 

2.3

2.3 

2.3

2.3

2.3

2.4

2.4

2.4

2.4 

2.3

2.3 

2.3 

2.3

2.3

Feb.

8.0

8.0

6.6

6.3

6.0

6.4

6.8

6.8 

6.5

6.1

£, 7

5.5

^ 9

5.0

4.8

4.7

4.7

4.8

7.7

6.7

6.0

5.8

13.7

16.0

8.4

7.2

2.3

9 3

2.3

2.3

2.3

2.3

2.3

5.3

4 9

4.6 

4.2

4.0 

4.0

3 9

3.8 

3.8

3.8 

3.7

3.7

3.6

3.7

3.7

5.0

5.4

5 9

5.7 

6.4

Mar.

£, R

4.6

4.2

4.0

4 3

6.5

7.9 

6.7

5.8

5.2

4.7

4.6

4.5

4.2

3.9

3.8

3.8

4.5

5.8

6.6

7.8

Q 9

10.0

7 9

7.1

6.4

5.7

5.2

5.1

4.8 

6.6

6.0

5.5

t; 9

20.0

13.6

9.4

8.0

6.4

^ Q

5.0 

4.8

4.7

4.8

5.6

6.2 

6.6

6.6 

6.2

£, 7

5.3

^ i

5.0

4.7

4.6 

4.6

4.6 

4.6 

4.6

4.6

Apr.

4.6

6.3

8.8

7.4

6.4

6.2

5.8

5.5

^ A.

5.4

5.1

4 9

4.6

4.3

4.0

3.8

3.6

3.4

3.2

3.0

3.0

3.0

i n

2.9

2.8

2.7

2.6

2.6

9 fi

2.6

4.6

4.6

4.6

4.7

5.8

K 7

5.3

5.1

4.9

4.7

4.6

4.5 

4.4

4.4 

4.4

4 3

4.3

4.2 

4.1

4.1

4.0

4 0

3.9

3.9

4.2

4.8

4.7 

4.5

A O

May.

2.6

2.5

2.4

2.3

2.4

2.3

2.2 

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.1

2.1

2.1

2.1

2.1

2.0

2.0

2.0

2.0

2.0 

4.2

4.1

4.0

3 Q

3.8

3.8

3.7

4.0

4.8

4.5

4.2 

4.2

4.1 

4.0

3 9

3.6 

3.3

2.9 

2.6

2.4

2.3

2.3

2.3

2.3

2.4 

2.4

2.4 

2.4

9 3

2.3

June.

2.0

2.0

2.0

2.0

2.0

2.0 

2.0

2.0

2.0

2.0

2.0

2.0

2.0

9 n

2.0

2.0

2.0

2.0

9 n

2.0

2.0

2.0

2 A

2.3

2

O

2.3

9 3

2.3

2.3

2.3

2.3

2

O

2.3

9 3

2.3 

2.3

2.2 

2.2

2.1

2.0 

2.0

2.0 

2.0

2.2

2.2

2.1

2.1

2.1

2.2

9 *}

2.3 

2.0

2 A

July.

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0 

2.0

2.0

2.0

9 A

2.0

2.0

2.0

2.0

2 A

2.0

9 n

2.0

3.0

2.2

2.1

2.0

9 n

2.0

2.0

2.0

2.0

2.0

2.0

2 A

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.8

5.0 

3.4

2.8

2.7 

2.6

2.6 9 t;

2.5

2.4

2.4

2.3

2.3

2.3

9 1

2.3 

2.3 

2.3

2.3

Aug.

3.8

3.6

3.4

3.2

3 9

3.1

3.1

;>.o 

3.0

2.8

2.6

2.5

2.5

2.5

2.5

2.5

9 ^

2.5

2.5

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6 

2.4

2.6

9 ^

2.5

2.5

2.4

2.4

2.4

2.4

2.3 

2.3

2.3 

2.3

2.3

2.3 

2.3

2.3 

2.3

2.3

2.3

3.5

4.0

3.9

3.9 

3.6

3.5

3.5 

3.4

3.4

Sept.

2.6

2.6

2.8

3.2

3.3

3.2

3.2

3.1

2.8

2.3

2.2

2.2

2.2

2.2

2.3

2.3

2.3

2.3

9 3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

3.4

3.4

3.4

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.2

3.2 

3.1

2.5 

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 

2.2

Oct.

2.3

2.3

2.3

2.6

2.6

2.4

2.3

2.3 

2.3

2.3

2.3

2.3

2.3

2.3

2.4

2.3

2.2

2.2

9 3

2.3

2.3

2.3

2.3

2.3

9 1

2.3

2.3

2.3

2.3

2.3

2.3 

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2 

2.2

2.2 

2.2

2.2

2.2 

2.1

2.1 

2.1

2.1

2.1

2.1

2.1

2.1

2.1 

2.1

2.1 

2.1 

2.1

2.1

Nov.

2.3

2.3

2.3

2.3

9 3

2.3

2.3

2.3 

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

9 3

2.3

9 3

2.3

2.3

2.3

9 3

2.3

9 3

2.3

2.3

2.3

2.3

2.3

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1 

2.1

2.1 

2.1

2.1

2.1 

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1 

2.1

2.1 

2.1 

2.1

Dec.

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3 

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2 4

2.4

2.4

2.4

2.3

2.3

2.3

9 *}

2.3

2.3

2.3

2.3

2.3

2.3 

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

------

......
174 SUKFACE WATER SUPPLY, 1907-8. 

GILA RIVER DRAINAGE BASIN. 

DESCRIPTION.

Gila River rises in western and southwestern New Mexico, receiving 

its waters from mountains having an elevation of from 7,000 to 

8,000 feet. At the point where it crosses into Arizona it still has an 

elevation of 6,000 feet. From this place it flows between mountain 

ranges, falling rapidly, until at Florence, 180 miles away, it is about 

1,500 feet above sea level. At a point about 15 miles above Florence 

the river emerges upon the plains, through which it winds for about 

75 miles before receiving the waters of its principal tributary, the 

Salt. From the junction of the Salt the Gila continues west and 

southwest and enters the Colorado at Yuma, Ariz., near the southwest corner of the Territory.

The principal tributaries are San Pedro and Santa Cruz rivers from 

the south, and San Francisco, Salt,a Agua Fria, and Hassayampa 

rivers from the north.

San Francisco River rises in the southwestern part of Socorro 

County, N. Mex., and flows south westward into Graham County, 

Ariz., where it unites with the Gila. The basin comprises about 

2,600 square miles, of which 1,800 square miles are in New Mexico 

and 800 in Arizona.

San Pedro River rises in the northern part of the Mexican State 

of Sonora, flows northward for more than 100 miles, and empties into 

the Gila a few miles below the town of Dudleyville, 45 miles above 

Florence, Ariz. Rising in a country of very light snowfall, the river 

depends for the greater part of its water supply on the frequent 

showers of the rainy seasons. It flows over a sandy bed between 

high, steep banks, and during the dry season it shrinks to an insignificant stream of clear water which rises and sinks in the sand with 

the varying depth of bed rock.

The floods of the upper Gila and its tributaries are commonly short 

and violent, occurring during the months of January and February. 

A period of high water occurs also usually during the late summer 

or early fall. The season of low water occurs in June and July.

The drainage basin of the Gila includes 7,000 square miles of 

merchantable timber land, 11,000 square miles of woodland, of which 

the San Francisco basin has 1,000 square miles of timber land, 45,000 

square miles of land upon which there is no timber, 1,300 square 

miles of scattered timber, and 300 square miles of open land.

The average annual precipitation over the greater part of the 

contributory drainage area of Gila and San Francisco rivers in New 

Mexico is between 10 and 15 inches rising above 20 inches in the high 

mountains of the headwater region.

» For description of Salt River, see p. 183,
GILA RIVER DRAINAGE BASIN. 175

The winters are mild, except in the mountainous sections, and 

very little ice forms on the rivers.

Irrigation development in New Mexico has been confined chiefly 

to the bottom lands along the main streams and their tributaries, 

but the total area irrigated comprises only a very few thousand 

acres. Excellent opportunities for irrigation exist along both the 

Gila and the San Francisco. The United States Reclamation Service 

has made surveys for an irrigation project in the vicinity of Alma, 

N. Mex. Another promising district is that popularly known as the 

Lordsburg flat, which extends from Lordsburg, N. Mex., northward 

 to Gila River, a distance of over 20 miles, and comprises over a 

quarter of a million acres of almost unbroken and very fertile land, 

at an elevation a little above 4,000 feet. This land could be irrigated 

by the stored water of Gila River, although the expense of reaching 

it would be considerable.

Good storage sites exist at various places along San Francisco 

and Gila rivers, among which may be mentioned the reservoir site 

on the San Francisco near Alma, and that on the Gila near Redrock, 

N. Mex.

Because of the torrential character of the Gila, water-power development is not feasible except where stored water is used. The San 

Francisco being more of a mountain stream, presents better opportunities for the use of water power along its upper reaches. Most of 

the future water-power development along these streams will probably 

be in connection with irrigation projects. At present it is limited to 

one or two small plants on the San Francisco.

The following stations have been maintained in this river basin:

Gila River near Cliff, N. Mex., 1904-1907.

Gila River near Redrock, N. Mex., 1908.

Gila River at San Carlos, Ariz., 1899-1905.

Gila River near Buttes, Ariz., 1889-1890, and 1895-1899.

Gila River at Dome (Gila City), Ariz., 1903-1906.

San Francisco River at Alma, N. Mex., 1904-1907.

San Pedro River at Charleston, Ariz., 1904-1906.

San Pedro River near Dudleyville, Ariz., 1890.

Santa Cruz River near Nogales, Ariz., 1907.

Santa Cruz River and ditches at Tucson, Ariz., 1905-1907.

Salt River at Roosevelt, Ariz., 1901-1907.

Salt River at McDowell, Ariz., 1895-1898, 1900-1903.

Salt River below mouth of Cherry Creek, near Roosevelt, Ariz., 1906.

Salt River at Arizona Dam, Ariz., 1888-1891.

Tonto Creek at Roosevelt, Ariz., 1901-1904.

Verde River at McDowell, Ariz., 1889, 1895-1898, 1900-1908.
176 SURFACE WATER SUPPLY, 1907-8.

GILA RIVER NEAR CLIFF, N. MEX.

This station, which was established September 9, 1904, to determine the amount of water available for irrigation was located 9 miles 

below Cliff post-office, one-half mile below the mouth of Mancos 

River, and 40 miles from Silver City, N. Mex. It was discontinued 

December 31, 1907.

Conditions of flow are changeable, and hence frequent measurements are necessary to properly determine the daily discharge.

The results published in the following tables were furnished by the 

United States Reclamation Service.

Discharge measurements o/Gila River near Cliff, N. Mex., in 1907. 

[By Frank Asplind.]

Date. Gage 

height.

Feet. 

4.50

4.90

5.10

Discharge.

Sec.-ft.

337

Date. Gage 

height.

Feet. 

5.00

4.90

Discharge.

Sec.-ft.

Date. Gage 

height.

Feet. 

4.85

4 80

Discharge.

Sec.-ft.

007

Daily gage height, infect, ofGila River near Cliff, N. Mex., for 1907. ,

Day.

1..... ..........

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20. ..............

21...............

22...............

23. ..............

24. .............

25...............

26...............

27...............

28. ..............

29...............

30............... 

31...............

Jan.

5.60

5.32

5.12

4.95

5.05

5.62

5.75

5.75

9 00

8.15

6.20

6.20

5.95

5 45

5.45

10.00

9.65

8.45

7 85

7.10

0.65

ti 45

6.28

6. 18

6.10

6.10

6.10

6.10

6.10

6.22 

7.70

Feb.

7.05

6.70

6.60

6.30

6.25

6.52

6.52

6.42

6.25

6.15

6.10

6.00

5.95

5.80

5.77

5.75

5.82

5.85

5.82

5.70

5.70

5.65

5.80

5.70

5.62

5.52

5.50

Mar.

5.50

5.40

5.37

5.30

5.27

5.25

5.30

5.30

5.32

5.30

5.27

5.30

5.30

5.30

5.20

5.15

5 15

5.15

5.25

5.35

5.48

5.65

5.72

5 65

5.50

5.40

5.38

5.30

5.22

5.25 

5.12

Apr.

5.06

5.00

5.18

5.30

5.30

5.20

5.15

5.10

5.10

5.10

5.28

5.30

5.30

5.28

5.20

5.18

5.10

5.00

5.00

5.00

5.00

5.00

4.98

4.88

4.80

4.78

4.75

4.80

4.90

May.

4.90

4.87

4.80

4.75

4.70

4.70

4,70

4.70

4.70

4.65

4.65

4.65

4.65

4.60

4 60

4 60

4. 60

4.55

4.60

4.55

4.55

4.55

4.55

4.55

4.55

4.60

4.60

4.65

4.80

4.80 

4.80

June.

4.72

4.68

4.62

4.60

4.60

4.60

4.60

4.55

4.53

4.50

4.43

4.40

4.40

4.40

4.40

4.40

4.40

4.48

4.50

4.70

4.60

4.52

4.50

4.50

4.50

4.40

4.35

4.32

4.30

July.

4.27

4.25

4.23

4.22

4.20

4.95

4.25

4.25

4.30

4.30

4.27

4.37

4.32

4.30

4.45

4.30

4.20

4.20

4.95

4.70

4.60

4.65

4.65

4.75

4.90

4.60

4.70

4.67

4.62

4.57 

4.63

Aug.

4.55

4.52

4.55

4.55

4.47

4.50

4.50

4.50

4.75

4.60

4.55

4.55

4.55

4.55

4.42

4.40

4.37

4.62

4.87

4.95

5.40

5 10

5.15

5.30

5.25

7.15

6.60

6.67

7.20

7.60 

8.82

Sept.

7 60

6.40

6.25

5.40

6.60

7.50

6.30

6.10

6.00

5.55

5 45

5 35

5. 15

5.10

4.97

4.90

4.90

4.97

4.92

4.80

4.75

4.85

4.80

4.75

4.67

4.65

4.60

4.55

4.55

4.50

Oct.

4,50

4.50

4.50

4.50

4.50

4.50

4.50

4.50

4.45

4.45

4.40

4.40

4.35

4.35

4.35

4.40

4.40

4.40

4.58

4.60

4.60

4.60

4.58

5 00

5.10

5.00

4.92

4.85

4.80

4.80 

4.80

Nov.

5,00

4.98

4.95

5.00

5.00

4.95

4.90

4 88

4.90

4.90

4.90

4.90

4.88

4.85

4.80

4.80

4.75

4.80

4.80

4.78

4.75

4.70

4.70

4.68

4.65

4.60

4.68

4.65

4.70

Dec.

4.70

4.70

4.70

4.70

4.70

4.65

4.65

4.65

4.65

4.60

4.52

4.55

4.52

4.50

4.50

4.50

4.50

4.50

4.50

4.45

4.45

4.45

4.45

4.40

4.40

4.40

4.40

4.40

4.40

4.40 

4.40

GILA RIVER NEAR REDROCK, N. MEX.

This station, which was established May 14, 1908, to determine the 

amount of water available for irrigation and power enterprises, is 

located about 2 miles east of Bedrock post-office and about 300 yards
GILA KIVEE DRAINAGE BASIN. 177

above the Middle Box Canyon of the Gila. The two nearest railroad 

points are Silver City about 36 miles oast of Redrock, and Lordsburg 

about 30 miles south.

Mangos River, an intermittent stream, the first large tributary 

upstream from the station, joins the Gila about 12 miles above. A 

number of large washes come into the river above and below the station, and during flood stages the run-oil' from these tributaries is very 

great. The drainage area at the station is about 3,500 square miles. 

A number of large irrigation ditches divert water above the station. 

Practically no power is developed in the headwaters of this basin; 

although opportunity for such development is good.

Except for fringe ice along the edges of the stream, ice conditions 

do not interfere with the accuracy of the results.

Neither the location nor the datum of the gage has been changed 

during the maintenance of the station.

Because of the few discharge measurements, the uncertainty of 

gage readings, and the constantly shifting channel, results are not 

good.

Date.

May 14 a.......

November 16 a. 

December 29 »..

Hydrographer.

R. L. Cooper.

.do.

J. B. Stewart.

Width.

JYff. 

91

no 

nu

Area of 

section.

' 107 

0.3

Gape 

height.

Discharge.

0. -40 20S 

. SO 101 

1. 15 129

Wading measurements.

[J. L. Rutland, observer.]

Day.

1........ .

2....

3..........

6..........

7..........

8.......... 

9..........

10.......... 

11 ....

12..... ..

13..........

14..........

15..........

July.

0.8

.9

.9

g

.9

g

Q

.9

Q

.9 

.9

.9

.9

0 1

3.1

Aug.

1.4

1.3

1.3 1 ?

1.8

1.3

1.3 

2.0

1.5

1.3

Sept.

2.4

1.1

1 Q

1.3

3.0

1.4 

1.6

1.3

1.9

1.3

Oct.

1.4

1.3

1.2

1.15

.8

1 3

1.0 

.8

.75

.6

Nov.

0.9

.85

.85

.75

.95 

.85

.8 

.8

.75

.7

1.5

.9

Dee.

.75

.7

.05

Q

Q

.85

.7 

.7

.85

.8

.8

.7

Day.

10. .........

17..........

IS..........

20..........

23..........

25.......... 

2G.......... 97

28..........

29..........

30..........

31..........

July.

3.1

3.1

.9

Q

.85

.8

1.1

1.0 

1.5

1.5

1.4

1.3 1 9

1.2

Aug.

1.2

1.2

1.0

1.3

1.3

1.9 

1.6

1.5

1.4

1.3

1.2

Sept.

1.5

2. (1

1.9 

].5

1.3

1 ti

1.5

1.3

1.45

3.1

2.3

1.4

(Jet.

0.0

1.15

.9

.9

.8 

.8

.7

1.1

.9

Nov.

.s

. 7

 3

.75

1.5

1.4

1.0

.8

Dee.

0.7

.9

.8

.75

-7

.U5

.8

.7

.7

SAX FRANCISCO RIVER AT ALMA, N. MEX.

This station, which was established October IS, 1004, to determine the amount of water available for irrigation was located about 

24439 ma 249 10 12
178 SURFACE WATER SUPPLY, 1907-8.

one-half mile south of Alma, N. Mex., and 85 miles northwest of 

Silver City. It was discontinued December 31, 1907.

Conditions of flow are changeable.

The results published herewith were furnished by the United 

States Reclamation Service.

D'tscharge measurements of San Francisco River at Alma, N. Mex., in 1907 and 1908.

[By Frank Asplind.] *

Date.

1907.

March. 21

March 22.......

March 23.......

March. 25

March 27.......

March 28.......

April 1.........

Aprils.........

April 4.........

April6. ........

April 10........

April 11........

April 13. .......

April 15. .......

April 17........

April 18. .......

April 19. .......

April 20........

April 23. .......

Gage 

height.

Feet.

1.80

1.70

2.18

7.05

t> ff\

6.70

3 80

4 00

S

on

3 en

4 en

4.70

4.10

3 7fi

3.65

3.60

3

fiK

3 on

3 DC

o 7K

4 9%

3 95

S

on

o on

3.65

3.65

3 AH

3.75

3.65

3 AH

S

en

3.50

3 Of)

3 OK

3 fif)

3.60

3.75

3.35

3 OK

3 1 ^

3.52

3.40

3 OK

3.15

3.18

3.15

3.10

3 in

3.05

3.00

Discharge.

Sec.-ft. 

235

115

1 V)

344

4,420

995

1,180

536

664

KKK

00 K

353

°.dS

si n

467

OQQ

634

482

49 e

403

323

322

297

450

385

348

298

OCA

266

220

230

232

264

312

309

369

236

221

198

286

238

217

197

175

188

169

182

189

165

160

158

141

121

Date.

1907.

April 26........

April 27 ........

April 29........

May 2..........

May 3.. ........

May4. .........

May 6..........

May8..........

May 10 .........

May 22.........

May 24.........

May25. ........

May 28.........

May 29.........

June 13. ........

June 20. ........

June 21. ........

June 22. ........

June 24. ........

June 27. ........

June 28. ........

July 2..........

JulyS..........

July 6..........

July 9..........

July 10. ........

July 12.........

July 14.........

July 15.........

July 17.........

July 19.........

July 22.........

July 23.........

July 24.........

July 25.........

July 26. ........

July 27.........

July 29.........

July 30.........

August 3 .......

August 16... ..

August 19... ..

Gage 

height.

Feet.

2.95

2.95

2.92

3.10

3.05

2.95

2.92

2.80

2.80

2.70

2.70

2.70

2.80

2.90

2.90

2.85

2.75

2.75

2.65

2.65

2.60

2.58

2.58

2.48

2.48

2.90

2.55

2.75

2.75

2.58

2.48

2.45

2.40

2.80

2.70

2.60

2.58

2.55

3.25

2.95

2.65

2.70

3.00

2.90

2.82

2.85

4.20

3.20

2.82

2.80

2.70

2.90

4.95

3.58

2.75

3.05

2.80

2.70

2.70

2.62

3.10

Discharge.

Sec.-ft.

106

106

155

156

144

115

92.0

75.2

74.4

42.5

42.3

48.6

69.2

89.6

86.8

77.8

58.4

41.8

42.0

00 0

27.6

24.0

95.3

21.5

51.4

51.4

24.2

9.8

7.6

1.4

60.5

46.0

35.7

31.9

27.3

203

104

44.3

52.0

118

94.0

71.9

79.4

600

182

69.3

63.4

48.6

87.3

1,260

781

58.9

130

68.9

51.0

50.4

39.9

151

Date.

1907.

September 23...

October 19. ....

October 23 .....

October 24. ....

October 25 .....

November 21 ...

November 27 ...

December 4. . ..

December 11 ...

December 16. . .

December 18. ..

December 24. . .

December 27. . .

1908.

Gage 

height.

Feet.

S

on

2.85

3.25

3.15

5.25

5 40

o in

3.35

3.22

3.15

2.90

2.90

o on

2.80

2.75

3.00

2 on

2.70

2.80

2.80

2.80

o 7C

2.80

2.85

2.88

4.50

4.90

5.10

3.05

2.85

2.82

2.85

2.88

2.82

2.80

2.88

2.82

2.88

2.80

2.85

2.80

2.80

2.80

2.78

2.82

2.80

2.85

2.80

2.78

2.80

2.82

2.78

2.85

2.80

Disch arge.

Sec.-ft.

77.5

184

151

1 640

2

nen

1 98

194

171

75.7

71.1

CK Q

47.5

102

76.8

eo n

45

CA

58

59

^1

58

69

72

161

331

433

136

86

76

87

94

77

65

87

68

87

66

80

63

65

64

59

73

67

78

65

59

66

73

59

73

64

570

Float measurement.
GILA RIVER DRAINAGE BASIN. 179 

Daily gage height, in feet, of San Francisco River at Alma, N. Mex.,for 1907.

Day.

1............... 

2............... 

3......... ...... 

4............... 

5...............

6............... 

7............... 

8...............

9............... 

10. ..............

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

12............... 

13...............

14............... 

15... ............

16............... 

17...............

19............... 

20. ..............

21...............

22............... 

23............... 

24...............

OK

26..... ........ .. 

27...............

28............... 

29...............

31...............

Jan.

1.95 

1.85 

1.62 

1.62 

1.60

1.67 

1.77 

4.85 

5.48 

4.50

3.80

3.60 

3.20

2.90 

4.52

5.40 

4.00

4.10

3.70

3.62 

3.65 

3.80

5.30

Feb.

5.10 

4.50 

4.27 

4.25 

4.55

4.65 

4.45 

4.35 

4.17 

4.05

3.90

3.75 

3.67

3.70 

3.70

3. 67 

3.90

4.00

3.90 

4.20 

4.05

4.10

3.85 

3.65

3.67

Mar.

3.67 

3.62 

3.65 

3.65 

3.67

3.85 

3.75 

3.80 

3.70 

3.90

3.60

3.55 

3.50

3.45 

3.37

3.35 

3.32

3.37

3.37

3.65 

3.75 

3.75

o C7

3.47 

3.42

3.37 

3.30 

3.20

3.18

Apr.

3.20 

3.25 

3.45 

3.35 

3.30

3.25 

3.20 

3.20 

3.15 

3.23

3.28

3.28 

3.25

3.17 

3.15

3.17 

3.12

3.17

3.12 

3.07

3.00

3.00 

3.10 

3.00

3.00

2.98

2.92 

3.20 

3.15

May.

3.10 

3.10 

3.00 

3.00 

2.95

2.90 

2.90 

2.75 

2.85 

2.90

2.85

2.80 

2.80

2.80 

2.80

2.80 

2.72

2.80

2.80 

2.75

2.75

2.70 

2.72 

2.70

2.70 

2.70

2.77 

2.90 

2.90

2.97

June.

2.85 

2.80 

2.80 

2.75 

2.75

2.67 

2.70 

2.65 

2.65 

2.65

2.55

2.55

2.57

2.55 

2.50

2.50 

2.50

2.53

2.57

2.68

2.80

2.72 

2.63 

2.60

2 55

2.50 

2.45

2.45 

2.40 

2.40

July.

2.40 

2.40 

2.40 

2.52 

2.60

2.65 

2.75 

2.65 

2.60 

2.60

2.60

2.60 

2.55

3.75

2.85

2.80 

2.65

2.65

2.60 

2.65

2.70

2.85 

2.90 

2.90

2.92

3.90 

3.15

2.95 

2.80 

2.80

2.90

Aug.

2.75 

3.10 

2.80 

3.90 

3.35

2.75

2.85 

2.75 

2.90 

2.85

2.75

2.75 

2.70

2.70 

2.65

2.60 

2.75

2.70

3.10 

3.20

3.25

3.10 

2.85 

2.90

2.95

3.35 

3.10

3.65 

5.85 

5.55

4.30

Sept.

3.90 

3.20 

3.00 

3.28 

3.40

3.38 

3.35 

3.15 

3.15 

3.00

3.00

2.90 

2.90

2.90 

2.90

2.80 

2.80

2.80

2.80 

2.70

2.85

3.00 

2.95 

2.90

2.90

2.80 

2.80

2.78 

2.75 

2.70

Oct.

2.70 

2.75 

2.80

2.78 

2.85

2.80 

2.80 

2.80 

2.80 

2.80

2.80

2.80 

2.80

2.80 

2.80

2.80 

2.82

2.88

2.95 

2.90

2.82

2.95 

3.25 

3.45

3.00

2.98

3.00 

2.98 

2.85

2.95

Nov.

3.05 

3.00 

2.90 

2.85 

2.80

2.80 

2.80 

2.85 

2.90 

2.90

2.90

2.85 

2.80

2.80 

2.80

2.90

2.82

3.00

2.90 

2.90

2.90

2.85 

2.80 

2.80

2.72 

2.85

2.85 

2.78 

2.75

Dec.

2.75 

2.80 

2.70 

2.75 

2.75

2.80 

2.80 

2.80 

2.75 

2.80

2.80

2.80 

2.80

2.80 

2.80

2.85 

2.80

2.80

2.80 

2.80

2.80

2.80 

2.80 

2.80

2.80 

2.80

2.80 

2.82 

2.80

2.80

a Channel changed and covered with gravel. & New gage. 

Daily discharge, in second-feet, of San Francisco River at Alma, N. Mex.,for 1907.

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18..............

19...............

20. ..............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30. ..............

31...............

Jan.

225

190

120

120

115

140

170

2,690

2,080

1,380

1,000

900

710

575

1,460

2,720

1.100

1,150

940

Feb.

1,400

800

660

640

850

925

700

390

OCft

370

370

360

465

465

465

615

565

440

350

Mar.

OCA

350

360

390

OOA

270

240

OOft

350

ocn

390

320

260

210

180

Apr.

180

270

230

210

195

180

188

202

202

195

172

165

172

158

172

158

120

150

120

120

112

98

180

165

May.

150

150

120

120

105

90

90

60

80

90

80

70

70

70

70

CF

70

60

60

Cft

v>

50

cn

50

65

90

90

112

June.

80

70

70

60

60

45

50

40

40

40

20

20

27

20

15

15

15

17

23

70

n<;

37

OK

20

15

8

1

1

July.

1

1

1

18

35

40

60

40

35

35

35

400

80

70

40

40

OK

40

50

90

97

165

70

70

90

Aug.

60

160

70

620

240

60

80

60

80

60

60

50

50

40

oc

60

50

150

190

80

105

245

170

2,280

2,050

678

Sept.

465

180

120

205

250

240

230

165

120

120

90

90

90

90

70

70

70

w

80

105

90

90

70

70

65

60

50

Oct.

60

70

65

80

70

70

70

70

70

70

70

70

70

70

75

QC

105

Oft

75

120

OR

80

105

Nov.

135

120

on

80

70

70

70

80

90

90

90

80

70

70

70

90

75

120

QA

90

90

Cft

70

60

55

Oft

fift

65

60

Dec.

60

70

nn

60

60

70

70

70

60

70

70

70

70

70

70

Oft

70

70

70

70

70

70

70

70

70

70

70

75

70

70

NOTE. These discharges were obtained by the indirect method for shifting channels.
180 SURFACE WATER SUPPLY, 1907-8.

Monthly discharge of San Francisco River at Alma, N. Mex.,for 1907.

Month.

Mav... ..----...-.--..--.--. .................. ............

Julv.... ........... ....... ............ .................

December

The txTiod. . . . . . . . ............... ..... . ..

Discharge in second-feet.

Maximum.

a 5, 200 

« 1, 000 

405 

270 

150 

80 

a 970 

a 3, 200 

a 515 

a 405 

135 

80

5. 200

Minimum.

115 

350 

173 

08 

50 

1 

1 

35 

50 

50 

55 

50

1

Mean.

930 

572 

311 

108 

79.4 

34.1 

80. 9 

273 

125 

. 91.5 

81.7 

OS. 5

Run-off 

(total in 

acre-feet).

35, 300 

31,800 

19,100 

10, 000 

4.880 

2,030 

4,970 

10.800 

7,440 

5,030 

4,800 

4,210

235 147, 000

"Maximum recorded discharsc for 1he month. These occurred on January 8, February 1, July 20, 

August 29, September 31, and October 24.

SANTA CRUZ RIVER NEAR NOGALES, ARIZ.

This station, which was established March 22, 1907, to determine 

the quantity of water available for irrigation, was located about 5 

miles from Nogales, near Yerba Buena ranch. Conditions of flow arc 

subject to change. It was discontinued November 30, 1907. The 

records given herewith were furnished by the United States Reclamation Service.

Discharge measurements of Santa Cruz River near Nogales, Ariz., in 1907. 

[By Anderson and Reed.]

Date.

1907. 

March 22 .......

March 23 .......

March 21.......

G age 

height.

Feet.

2. SO

Discharge.

Scc.-ft.

22. 4

i 

Date.

1907.

March 20.......

April 3.........

Gage 

height.

Feet.

3.15

Discharge.

Scc.-ft.

7.0

4 9

Date.

1907.

Gage 

height.

Feet.

3.40

Discharge.

Scc.-ft. 

143

144
GILA EIVER DRAINAGE BASIN. 181

Daily gag° height, in feet, of Santa Cruz River near Nogales, Ariz.,for 1907.

Day.

1. ..........................

3............................

4............................

0........ ....... .............

8............................ 

9............................

10............................

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

13............................

15............................

10....... ........ 

17............................

18............................

19.................... ...... 

20............................

21........ ... . ..... ..... 

22........ ...................

23........ ................... 

24.................... . .

25........ ...................

20............................

27.................... . . 

28............................

29............................

30............................

31............................

Mar.

'"2." n"

2.80 

2.80

3. 15

3. 50

Apr.

3. GO

3.70

3. 62

3.65

') KC

3.58 

3. 58

3. 70

3. 66 

3 60

3.82 

3.78

3. 75 

3.75

3. 55

3.70 

3.70

3.72

3. 70

May.

3.45

3.45

3. 42

3.50

3. 50

3.50

3. 48

3. 40

3. 45

3. 45

3. 48

3. SO 

3. 5.->

3. 65 

3.70

3.70 

3.70

3.70

3.70

3. 08

3.72

3. 75

3.75

June.

3.75

3. 75

3.80

3. SO

3. 75 

3. 90

3.80

3. 00

3.80 

3. 95

3.90 

3. 95

3.95 

3. 98

3.98 

3. 98

3.98

3.80

3. 75 

3.70

3. 70

July.

3.75

3.80

3.80

3.70

3.80

3.80

3.80

5. 50 

2. 65

2.40

2 40

4 55

3. 00

2. 55

2.48

2.70 

2. 60

2.70 

3. 00

3. 00 

3. 35

3.25

3.30

3.00 

2. 95

2. 85

Aug.

2.80

2.70

2.60

2.75

2.70

2.75

2.80

2.75 

2. GO

9 50

2. 45

9 00

2.90

2.70 

2. 75

3.10 

3. 00

2.95 

3.00

5. 25 

4. 50

3.20

3.80 

3.40

3. 10

Sept.

2. 75

2.60

2.30

2.10

3. 35

3.00

3.10

3. 20 

4. 60

4.40

5. 10

3. 20

2.90

4.85

3. 95 

3. 90

3.90 

3.80

3. 20 

3. 10

3.00

3.00

2.90

2.95

Oct.

3.10

3.10

3.10

3.10

3.10

3.10

3. 05

3.05 

3. 05

3. 05

3. 05

3. 10 

3. 10

3. 10

3.40 

3. 40

4.05

~4.'oo'

4.05

3. 85 

3.70

3.50

3.45

3.40 

3. 35

3. 20

Nov.

3.05

3. 05

3. 05

3. 05

3. 05

3. 05

3. 00

3. 30 

3. 35

3. 1)5

3. 55

3. 45

3.45 

3.45

3. 45

3. 40 

3.40

3.40 

3. 40

3. 40 

3.40

3. 40

3.40

3. 40 

3. 35

3. 35

3. 35

SANTA CRTJZ RIVER AND DITCHES AT TUCSON, ARIZ.

This station was established October 1-5, 1905, and discontinued 

November 12, 1907. It was located at Congress Street Bridge, 

Tucson, Ariz.

Manning and Farmers ditches divert practically the entire flow 

during the low period of Santa Cruz River. These ditches are taken 

out just above the gaging station, and their flow is determined by 

current-meter measurements, supplemented by daily records, kept 

by the ditch managers, of the amount of water contained in eachThis water is used to irrigate lands on the north and south sides of 

Santa Cruz River in and about the vicinity of Tucson.

Conditions of flow are changeable.

The results published herewith were furnished by the United States 

Reclamation Service.
182 SURFACE WATER SUPPLY, 190*7-8.

Discharge measurements of Santa Cruz River at Tucson, Ariz., in 1907.

Date.

Do.........

July 25. ........

July 29. ........

Do.........

Hydrographer.

F. M. Jolly......

F. C. Kelton....

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

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

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

W. L. Handy...

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

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

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

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

Gage 

height.

Feet. 

0.46

4.40

3.30

1.95

1.50

.18

.05

2.36

.20

2.10

.99

.01

Discharge.

Sec.-ft. 

16

4,010

3,330

924

633

10

2

1.410

17

1,100

537

38

Date.

August 16. .....

August 22. .....

Do.........

Do.........

Hydrographer.

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

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

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

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

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

Gage 

height.

Feet. 

0.15

.01

.20

1.71

.78

.25

.21

1.43

1.15

.01

Discharge.

Sec.-ft. 

66

22

64

911

365

167

7

672

588

93

Discharge measurements of Farmers ditch near Tucson, Ariz., in 1907.

Date.

March 28. ......

May 16.........

Hydrographer.

F. C. Kelton....

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

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

Gage 

height.

Feet. 

9.40

8.15

9.54

Discharge.

Sec.-ft. 

«4.6

1-5.1

3.4

Date.

July 14.........

Hydrographer.

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

Gage 

height.

Feet. 

7.07

d9.33

Discharge.

Sec.-ft. 

c3.1

3.4

At flume crossing river. & 300 feet below head-gate. c 200 feet below head-gate. d New gage. 

Discharge measurements of Manning ditch near Tucson, Ariz., in 1907.

Date.

May 16 o.......

Do.a.......

Do.i.......

Do.b. ......

Do.b.......

Do.c. ......

Do.c.......

Hydrographer.

F.C. Kelton.....

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

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

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

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

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

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

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

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

Gage 

height.

Feet.

8.19

8.19

8.94

8.88

9.50

9.45

8.05

Discharge.

Sec.-ft. 

10.7

9.5

9.0

9.1

8.4

6.0

11.4

11.4

7.6

Date.

August 31 d....

Do.d.......

Do.d.......

Hydrographer.

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

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

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

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

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

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

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

Gage 

height.

Feet. 

& 11

6.84

6.84

7.02

6.89

8.19

Discharge.

Sec.-ft. 

6.5

9.9

10.0

8.3

10.1

8.8

9.5

a Measurement made at head-gate.

6 Measurement made 1£ miles below head-gate.

c Measurement made 3J miles below head-gate.

d Measurement made 100 feet south of Congress street. 

f Measurement made at Hospital road flume.

Daily gage height, in feet, of Santa Cruz River at Tucson, Ariz., for 1907.

Day.

1....

2....

3.... 

4....

5....

6....

7.... 

8....

9....

10. ...

11.... 

12. ... 

13.... 

14. ... 

15....

Jan.

0.7

.5

.5 

.5

.5

.55

.55 

.55

.55

1.25

.6 

.5 

.5 

.5 

.5

Feb.

0.4

.4

.4

.3

.3 

.3

.2

.2

.18 

.18 

.18 

.18 

.15

July.

------

......

Aug.

-0.40

1.50 

- .05

- .14

 19

- .20

- .24

- .30

- .31

""."i?

Sept.

-0.37

- .37

.46

- .06

.18

.25 

- .11

- .24

- .28

.19 

- .13

- .28 

- .28 

- .18

Oct.

-6." 26 

- .26

- .26

Nov.

- .27

- .25

- .25

- .25

- .25 

- .25

- .25

- .25

- .20 

- .40

Day.

16....

17....

18....

1 Q

20. ...

21....

22.... 

23....

24....

OC

26. ... 

27-... 

28. ... 

29.... 

30...- 

31....

Jan.

0.85

3.8

1.95 

1.5

1.5

.7

.5 

.5

.5

.5

.5 

.5 

.5 

.5 

.5 

.5

Feb.

0.15

.15

.15

.1

.1 

.1

.1

.1

.05 

.05 

.05

July.

2.36

-'.'20 

- .20 

- .20 

- .30

Aug.

-0.04

- .26

- .40

.48

.43

.51

.18

.50

- .02 

.16 

.53 

.02 

- .31

Sept.

-0.26

- .26

.00

_ 00

- .28

98

......

Oct.

-0.26

.00

.25

- .18

- .23

- .30 

- .30

- .13

- .23

- .27 

- .27 

- .27 

- .27 

- .27 

- .20

Nov.

NOTE. The river was dry March 1 to July 22, August 2, 11-14, 31, September 22 to October 12, and 

November 12 to December 31.
W**i A. L&mb.

U. 0. GEOLOGICAL SURVEY

. FLOOD PASSING OVER ROOSEVELT DAM, SALT RIVER PROJECT, ARIZONA.

B. TRANSWIISS'.ON LINE THROUGH SALT RIVER VALLEY, ARIZONA; POWER DEVELOPED AT

ROOSEVELT DAM.
U. S. GEOLOGICAL SURVEY

A. GRANITE REEF DAM, SHOWING BOTH INTAKES, SALT RIVER PROJECT, ARIZONA.

B. MEASURING SECTION ON GRAND RIVER AT GLENWOOD SPRINGS, COLO.
GILA RIVER DRAINAGE BASIN. 18S

SALT EIVER DRAINAGE BASIN. 

DESCRIPTION.

Salt River, though considered a tributary of the Gila, is in fact 

larger both in catchment area and in discharge. It receives the 

drainage from central Arizona, its principal tributary, the Verde, 

flowing southeasterly and south from the mountains and tablelands 

south of Colorado River. The Verde Valley is situated in Yavapai 

County, Ariz., on the headwaters of the stream, and extends from 

a canyon above Camp Verde to a point about 10 miles below the fort. 

About a mile below the junction of the Verde and 30 miles above 

Phoenix the Salt enters upon the plains of the Gila Valley.

The Salt River project of the United States Reclamation Service 

involves the construction of a dam 240 feet high for the storage of 

1,100,000 acre-feet of water, and of power plants for pumping water 

for irrigation in the lower valley. In addition to this it is estimated 

that by developing the flow available along Salt River and using it for 

pumping, nearly 60,000 acres can be added to the irrigated district in 

Salt River valley. The power developed along the river will be 

transmitted to substations properly located and there distributed at 

a lower voltage to pumping stations so situated as to furnish water 

for irrigation. Views of the Roosevelt dam, the Granite Reef dam, 

and the transmission lines are shown in Plates IX, A; X, A; and 

IX, B. The Reclamation Service reports the project as 83.5 per cent 

completed (December, 1909).

SALT RIVER AT ROOSEVELT, ARIZ.

This station, which was established February 7, 1901, to determine 

the amount of water available for irrigation and was discontinued 

December 9, 1907, was located at the town of Roosevelt the United 

States Reclamation Service construction camp for the Salt River dam 

and reservoir, and is about 12 miles west of Livingston, Ariz.

During the flood of December 3 to 5, 1906 (PI. IX, A), the gage rod 

which had been in use since the construction of the dam was begun, 

was carried away. From December 3 to 15, 1906, the readings were 

taken on the upper gage about 1,000 feet above the dam. A new 

rod was established at the same location as the one carried away on 

December 17, 1906, with the zero at the same elevation as the old 

gage.

Conditions of flow are changeable, requiring frequent measurements to properly determine the daily discharge.

The results published herewith are furnished by the United States 

Reclamation Service.
184 SURFACE WATER SUPPLY, 1907-8.

Discharge measurements of Salt River at Roosevelt, Ariz., in 1907. 

[By McDonald, Blades, and others.]

Date.

January 3 ......

January 7 ......

January 8 ......

January 9. .. ...

January 10. ....

January 11 .....

January 12. ....

January 14.. ...

January 15. ....

January It!. . . ..

January 17. ....

January IS. ....

January 19. ....

January 21 .....

January 23. ....

January 25. ....

January 26. . . ..

January 28. ....

January 29. ....

January 31. ....

February 1.

February 2.

February 4.. ...

February (i.

February 15. ...

February 18 ....

February 20. ...

February 21... .

February 28 .. .

March 2........

March 4

March 6 ........

March 8..... .

March 11.......

March 13.......

March 19...

March 21.......

TVtirch 2S

April 1....... .

April 3......... 

April 4... ...... 

April 5.........

AnrilS.........

Gage 

height.

Feet. 

3.20

4.60

4.95

0.70

0.05

5.12

4.25

3.80

3. GO

5.00

4.65

4.30

4.10

3.80

3.70

3.50

3.40

3.35

3.30

3.30

5.50

5.05

4.25

4.10

4.10

4.17

4.20

4.15

3.90

3. 05

3.60

3.50

3.60

4.47

3.80

3.70

3.70

4.40

4.20

4.10

4.00

4.00

3.90

4 7-^

8.95

4.80

4.40

4.10

3.90

4 no

4.10

4.35 

5 30

7.70

5 40

4 50

4 50

4.30

4.10

. 4.20 

4.50 

4.50

4. 30

Discharge.

Sec.-ft. 

892

4,560

4,830

5,380

9,030

8,100

5,270

2,580

2,110

1,890

3,540

2,850

3,040

2, 830 

2, 320

1,990

1,690

1,620

1,540

1,530

5,870

6,410

3,830

2, 960

2,700

2, «30

2,790

2,390

2,020

1,820

1,720

1,750

2,200

2,030

1,890

1,890

3,050

2,610

2,320

2,200

2,120

2, 090

15,900

4, 460

2,790

2, 260

2,010

1,890

1,910

2.140

2,590

K TOO

2 300

1,970

2,220 

2, 950 

2,860

2, 200

Date.

April 11.... ...

April 13

April 17

April IS ... ...

April 23 . .

April 24........

April 30 ...

May 1 ......

May 2. .

May 3 ... .

May 7. ........

Mays..........

May 9. .........

May 10

May 11 .

May 13. .. .

May 15...

May l(i.........

May 17. .

May 18

May 20 . .

May 22

May 23....... .

May 24.........

Mav2o...... ..

May 27.........

May 28 .

May 29

May 30 . . .

May 31.....

June 3. .

June fi. ......... 

June 7

Juno 8. .....

Juno It.........

June 13. ........

Juno 14. ........

June 15. ....

Juno 17. ........

Juno 18 . ......

Juno 19 .... ...

Juno 20

June 21......... 

June 22. ........

June 24. .

June 27. ........

June 28. ........

June 29. ...... .

July 1 . . . .

July 2..........

July 3..........

July 5'. ......... 

July 6..........

JulyS.......... 

.Till V9.. . 

July 10......... 

July 11.........

July 12.........

Gage 

height.

Feet.

4.40

4.50

4.50

3.90

3.80

3.70

3.60

3.40

o on

3.40

3.30

3.30

3.10

3.05

3.00

2 90

2. 80

2.80

2 75

2.70

2.70

2 75

2.75

2 QQ

9 on

2.85

2.90

2.95

2 95

2.80

2.70

9 KT

2.65 

2.65

2.70

9 flfi

2. 60

2.58

2.52 

9 £n

2.45

2.40

2.50

2.42

2.25

2.20

2.15

2.10

2.15 

2.22

2 12 

2.10 

2.10 

2.10

2.10

Discharge.

Sec.-ft. 

2,210

2,440

2,510

9 wn

2 VV1

2 370

9 9OA

1,780

1,550

1,440

1,380 

1, 220

1,130

1,060

1,010

1,120

1, 150

1,070

1,000

828

794

740

727

698

682

623

581

578

597

627

672

704

728

71 ^

527 

572

588

528

491

480

484

460

551

462

374

350

336

334

30G 

370

368 

290 

319 

318

291

Date.

July 16.........

July 17.........

July 18.........

July 19.........

July 22. ........

July 23.........

July 24. ........

July 26.........

July 27.........

July 29.........

July 31 .........

August 20......

August 22......

August 24......

August 26......

August 28......

August 29......

August 31......

September 2. ...

September 3. ...

September 5. ...

September 9. ...

September 17.. .

September 19. . . 

September 20. . .

September 21.. .

September 24. . .

September 25. . .

September 20. . .

September 27. . .

September 28. . .

September 29. . .

October 2.......

Octobers.......

October 9

October 10...... 

October 11......

October 12...... 

October 14...... 

October 15...... 

October 16......

October 17......

Gage 

height.

Feet. 

2.05

2.05

2.05

2.00

2.00

2 22

2.18

3.70

2.95

2.60

2.50

2.35 

2.22

2.28

2.52

3.08

3.35

3.02

2.80

2.58

2.45

2.38

2.32

2 22

2.20

2.18

2.20

2.25

2.50

2.42

3.00

2.85

3.15

3.45

3. 35

3.00

3.02

3.32

3.80

4.42

5.58

4.15

3.85

5.10

4.32

3.90

3.62 

3.48

3.10

3.10

3.00 

3.00

3.00 

2.90

2.90

2.90

2.90

2.90

2.80

2.80 

2.80

2.80

2.80

2.80

3.80

2.80

2.85

2.80

2.75 

2.75

2.75 

2.70 

2.70 

2.70

2.08

Discharge.

Scc.-ft.

299

202

367

352

2,100

946

657

568

452

3S5

382

574

875

1,460

984

778

601

517

4.56

398

372

368

354

341

010

538

1,080

778

1,140

1,360

1,200

901

907

1,010

1,340

2,800

5,740

2,070

1,030

3,600

2,570

1,630

1,590

1,390 

1,210

823

073

695 

650

577 

547

516

519

514

457

445

416 

420

411

407

426

410

420

477

382

421 

436

431

387 

388 

385

356
G1LA RIVER DRAINAGE BASIN. 185

Discharge measurements of Salt River at Roosevelt, Ariz., in 1907 Continued.

="' 

October 18......

October 19......

October 21......

October 22......

October 23......

October 24......

October 24......

October 26......

October 28......

October 29......

October 30......

October 31......

November 1 ....

^R

Mr/.

4.45

5.50

4.00

3.00

3.30

3.30

4.70

5.30

(i. 50

4.95

4.(X)

3.80

3.00

3.40

3.%

,%.

Src.-//.

2.570

4.830

1,890

1,380

1.190

1.010

3.510

4.520

S.740

3.4.50

1.7SO

1.570

1,280

1,130

1,150

Date.

November 2....

November 6....

November 7... .

November 9....

November 11...

November 12...

November 14...

November 15...

November 16...

November 18...

November 19...

: November 20...

Gage 

height.

.F((Y.

3.40

3.40

3.25

3.20

3.20

3.20

3.25

3.28

3.35

3.35

3. 35

3. 30

3.45

3. 40

3.50

Discharge.

s<c.-/y.

1,170

1.160

923

806

744

682

727

759

943

849

845

790

1,050

994

1,200

Date.

November 21 ...

November 26 ...

November 27 ...

November 29...

November 30 ...

December 2. ....

Decembers.....

December 6.....

December 7.....

December 9.....

Gage 

height.

r«(.

3.45

3.42

3.35

3.22

3.20

3.20

3.20

3.15

3.10

3.10

3.05

3.00

3.00

Discharge.

&?.-/?.

1.050

879

715

695

692

690

637

588

591

535

536

521

Daily gage height, infect, of Salt Rircr at Rooserelt, Ariz., for 1907

Day.

1...............

2...............

3...............

4...............

5...............

6. .............

7..............

8..............

9...............

10...............

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

12........ ......

13..............

14...............

15...............

16. ..............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24. ..............

25...............

20...............

27...............

28...............

29...............

30. ..............

31

Jan.

3. 26'

4.90

5.00

5.80

0.70

5.90

5.02

4.95

4.15

3.75

3.55

4.00

4.45

4.30

4.20

4.05

3.80

3.70

3.50

3.40

3.35

3.30

3.30

3.30

3.55

6. 35

Feb.

5.75

5.00

4.00

4.25

4.10

4.12

4.22

4.20

4.12

4.00

3.90

3. SO

3.72

3. (12

3.55

3.50

3.55

3.60

3.90

3. S3

3.70

3.70

3.70

4.40

4.40

4.20

4.10

4.00

Mar.

4.00

3.90

3.85

3.85

5.10

8.40

6. 15

5.30

4.70

4.50

4.35

4.23

4.10

4.10

4.05

4.00

3.95

3.90

4.00

4.15

4.38

5.55

7.70

(i. 00

5. 35

5.15

4^85

4.55

4.45

4.30

4.02

Apr.

4.10

4.20

4.20

4.00

4.50

1.40

4.35

4.30

4.30

4.40

4.50

4.50

4. 50

4.45

4.40

4.30

4.15

4.00

3.90

3.80

3.78

3.75

3.70

3.60

3.50

3.40

3.30

3.30

3.25

3.30

May.

3.40

3.40

3.30

3.25

3.18

3.10

3.10

3.05

3.00

3.00

3.00

2.95

2.90

2.90

2.90

2.85

9 g]

2. SO

2.80

2.80

2.75

2.70

2.70

2.75

2.76

2.85

2.80

2.80

2.85

2.90

2.95

June.

9 12

2.88

2.73

2.70

2.70

2.60

2. (6

2.70

2.69 ">07

2. 60

2.58

2.53

2.50

2.50

2.48

2.45

2.45

2.40

2.40

2.50

2.50

2.47

2.42

2.40

2.30

2.30

2.25

2.20

2.17

July.

2.15

2.10

2.10

2.10

2.15

2.22

2.18

2.13

2.10

2.10

2.10

2.10

2.05

2.00

2.00

2.05

2.05

2.00

2.00

2.00

2.12

2.22

2.18

3.70

2.95

2.60

2.50

2.42

2.35

2.22

2.27

Aug.

2.52

3.07

3.35

4.80

3.02

2.80

2.58

2.45

2.38

2.32

2.28

2.22

2.20

2.18

2.22

2.25

2.50

2.95

2.42

3.00

2.85

3.15

3.45

3.35

3.25

3.00

3.02

3.32

3.80

0.65

5.58

Sept.

4.86

4.15

3.85

5.10

4.32

3.90

3.75

3.68

3.62

3.47

3.30

3.20

3.20

3.15

3.18

3.20

3.10

3.10

3.00

3.00

3.00

2.95

2.90

2.90

2.90

2.90

2.90

2.80

2.80

2.80

Oct.

2.80

2.80

2.80

2.80

2.80

2.80

2.80

2.85

2.80

2.75

2.75

2.75

2.75

2.70

2.70

2.70

2.68

5.10

4.00

3.35

3.40

3.25

3.30

5.00

0.00

4.70

4.38

3.95

3.75

3.55

3.38

Nov.

3.32

3.40

3.50

3.40

3.30

3.25

3.20

3.18

3.15

3.20

3.25

3.34

3. 38

3.35

3.35

3.30

3.30

3.40

3.40

3.50

3.48

3.38

3.32

3.30

3.30

3.22

3.20

3.20

3.20

3.20

Dec.

3.20

3.15

3.15

3.10

3.10

3.02

3.00

3.00

3. 00
186 SUBFACE WATER SUPPLY, 1907-8.

Daily discharge, in second-feet, of Salt River at Roosevelt, Ariz.,for 1907.

Day.

1... ............

2...............

3...............

4 .........

6...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19. ..............

20. ..............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

892

5,120

4,830

6,520

9, 030

7,550

4,930

4,420

2,180

2,100

1,890

3,280

3,040

2,930

2,830

2,320

1,990

1,880

1,690

1,620

1,540

1,540

1,530

1,910

Feb.

6,600

3,670

3,250

2,960

2,700

2,630

2,970

2,790

2,800

2,640

2,400

2,150

1,980

1,820

1,740

1,680

1.720

1,750

2,200

2,030

1,890

1,890

1,890

3,050

2,610

2,200

Mar.

2,120

2,040

1,860

1,860

4,740

14,200

7,010

4,390

3,410

2,940

2,750

2,430

2,260

2,170

2,010

1,890

1,830

1,790

1,910

2,200

2,620

5,580

10, 300

6,300

5,720

4,700

3 790

2,780

1,950

Apr.

1,970

2,410

2,220

3,010

2,860

2,410

2,300

2,200

2,210

2,440

2,510

2,520

2,550

2 460

2,370

2,200

1,940

1,870

1,780

1,570

1,550

1,490

1,440

1,380

1,220

1,130

1,010

970

1,080

May.

1,120

1,150

1,070

1,000

940

881

881

828

794

754

740

734

627

698

682

680

676

656

640

623

616

581

578

586

670

649

627

672

704

728

June.

715

674

639

560

548

527

572

585

595

604

588

552

528

499

491

485

480

484

460

465

552

551

520

462

440

400

388

374

350

340

July.

336

334

330

320

306

370

368

368

290

319

318

291

292

294

294

299

285

111

265

262

320

367

352

2,100

946

657

568

510

452

385

382

Aug.

574

875

1,460

4,300

984

778

601

517

456

398

390

372

368

354

341

376

610

910

538

1,080

778

1,140

1,360

1,200

1,080

901

907

1,010

1,340

8,560

5,740

Sept.

3,350

2,070

1,630

3,600

2,579

1,630

1,590

1,490

1,390

1,210

1,020

930

930

880

900

930

823

673

695

650

576

562

547

515

519

513

457

445

416

416

Oct.

420

411

407

426

416

420

430

477

382

422

436

431

430

387

388

385

356

3,350

1,890

1,380

1,440

1,190

1,010

4,030

8,740

3,020

2,340

1,720

1,500

1,220

1.130

Nov.

1,130

1,170

1,260

1,160

936

808

744

676

670

700

726

830

942

850

845

790

800

1,040

994

1,200

1,050

1,020

879

860

840

715

695

692

690

680

Dec.

670

637

630

587

594

535

526

521

520

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Salt River at Roosevelt, Ariz.,for 1907. 

[Drainage area, 5,760 square miles.]

Month.

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

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

Discharge in second-feet.

Maximum.

oll,600 

o 6, 950 

ol7,000 

o3,410 

1,150 

715 

o2,550 

oll,100 

3,600 

a 9, 700 

1,260 

670

Minimum.

892 

1,680 

1,790 

970 

578 

340 

262 

341 

416 

356 

670 

520

Mean.

3,410 

2,550 

3,710 

1,940 

748 

514 

428 

1,300 

1,130 

1,320 

880 

580

Per 

square 

mile.

0.592 

.443 

.644 

.337 

.130 

.089 

.074 

.226 

.196 

.229 

.153 

.101

Run-off.

Depth in 

inches on 

drainage 

area.

0.57 

.46 

.74 

.38 

.15 

.10 

.09 

.26 

.22 

.26 

.17 

.03

Total in 

acre-feet.

176, 000 

142,000 

228,000 

115,000 

46,000 

30,600 

26,300 

79,900 

67,200 

81,200 

52,400 

10,400

1,060,000

o Maximum discharge recorded for the month. These occurred on January 31, February 1, March 6, 

April 4, May 24, August 30, and October 25.

SALT RIVER AT McDOWELL, ARIZ.

This station, which was established April 20, 1897, to determine 

the amount of water available for irrigation, is located one-third mile 

above the junction of Salt and Verde rivers, 30 miles northeast of
GILA RIVER DRAINAGE BASIN. 187

Phoenix, 15 miles northeast of Mesa, and If miles above the Arizona 

canal diversion dam.

The bed of the river at this point is sandy and shifting, and frequent measurements are required to properly determine the daily 

discharge. 

The results published herewith were furnished by the United States 

Reclamation Service.

Discharge measurements of Salt River at McDowell, Ariz., in 1907 and 1908.

[By W. Richins.]

Date.

1907.

February 28. ...

March 15 .......

March 22.......

March 23 .......

March 25 .......

March 27 .......

March 29.......

April 2 .........

April 5 .........

April 9.........

April 11........

April 13........

April 17........

April 19. .......

April 23........

April 26.. ......

April 30........

May 2..........

May 4..........

May 7..........

May 9..........

May 11.........

May 13.........

May 15.........

May 17 .........

May 21.........

May 23... ......

May 25. ........

May 28.........

June 11.........

June 20. ........

June 22.........

June 25. ........

Gage 

height.

Feet. 

6.50

5.80

6.60

7.75

6.85

5.55

5.75

5.50

5.30

6.58

6.85

6.00

6.10

5.80

5.50

5.60

5.60

6.00

5.65 

10.25

8.05

6.55

6.00

5.90

5.70

6.40

8.20

7.15

6.30

6.00

5.45

5.80

5.50

5.50

5.50

5.40

5.15

4.95

4.60

4.35

4.10

4.10

4.00

3.70

3.60

3.55

3.45

3.40

3.35

3.25

3.15

3.20

3.20

3.30

3.15

3.05

3.00

3.00

2.90

2.85

2.75

2.70

2.80

2.70

Discharge.

Sec.-ft. 

5,350

3,210

5,630

9,690

6,200

2,850

3,530

2,650

2,100

1,760

5,030

5,520

3,150

3,310

2,820

2,200

2,450

2,660

3,330

2,870 

18,300

9,270

2,740

3,300

3,950

10.500

6,710

4,470

3,570

2,880

3,830

3,170

3,270

3,150

2,800

2,230

1,760

1,370

1,220

1,280

1,240

1,000

960

922

840

783

820

742

653

698

703

858

716

653

635

628

534

523

494

491

524

503

Date.

1907. 

June 27. ........

July 2..........

July 6 ..........

July 9..........

July 13.........

July 16.........

July 27 .........

July 30.........

August 13. .....

August 29. .....

Octobers.......

Octobers.......

October 11......

October 19......

October 22......

October 24......

October 25......

October 29......

October 31......

November 9

November 12

November *^9

December 6.....

Gage 

height.

Feet. 

2.55

2.45

2.30

2.20

2.25

2.20

2.20

2.15

2.15

2.10

2.30

3.60

2.95

2.65

2.55

3.50

3.40

3.00

2.80

2.60 

2.45

2.50

2.80

3.20

3.90

3.40

4.15

7.30

5.05

5.05

5.00

4.20

3.75

3.50

3.45

3.20

3.05

2.85

2.75

2.60

2.55

2.55

2.65

2.60

2.50

2.50

5.20

3.55

3.50

6.75

4.65

4.20

4.05

4.00

3.25

3.70

3

TC

3.70

3.75

3.30

3.20

3.20

Discharge.

Sec.-ft. 

450

377

341

299

348

308

314

305

309

304

408

1,250

685

492

470

1,120

974

635

514

446 

393

396

551

806

1,330

883

1,700

7,390

2,030

2,090

2,020

1,390

1,120

831

819

671

638

529

493

409

395

397

472

456

347

360

2,870

1,070

1,040

7,180

1,620

1,200

1,150

1,150

1,020

QCC

983

1,010

1,080

830

749

676

661

Date.

1907. 

December 10

December 17

December 20

Df> mbpr 94

December 27

1908

February 6 .....

April7. ........

April 17........

Mayl. .........

May 22. .......

June 23.........

Gage 

height.

Feet. 

3 in

3 10

3

nc

3 00

3 00

3 Of)

S fifi

S fifi

3 05

3.00

9 Q^

9 Q*\

2 q5

2 95

2 95

12 00

5.92 

5.50

5.10

5.55

5.80

5.40

5.35

6

QC

5

QC

e on

c Kn

5.00

4 9n

4.35

4.30

4 10

4.15

3.80

3

Cfl

3 en

S

on

3 15

3.10

q {\K

2 90

9 ft 11.

2.85

2.70

Discharge.

Sec.-ft. 

600

597

CAQ

476

448

443

415

426

493

428

400

399

405

392

000

394

9Q ftfifl

6,010

2,110

9 qAfi

2 400

1,850

3,880

2,730

2,600

8

Qon

0 Q4fl

2,570

2,740

3

OTA

2

KOrt

2,130

1,880

9 noft

1,660

1,570

1,360

1 f\sn

i ''inn

1,230

1,190

1,260

948

04 K

790

655

621

579

523

461

427

434

44fl

387
188 ,- SURFACE WATER SUPPLY, 1907-8.

Discharge measurements of Salt River at McDowell, Arlz., in 1907 and 1908 Continued.

Date.

1908.

June 30.........

July3..........

July 1 ..........

July 17. ........

July 21. ........

JulV 28. ........

July 31 .........

September 1.. . .

Gage 

height.

Feet.

2.50

2.40

2.35

2.85

3.50

3.25

5. 50

4.00 

3.85

4.20

4 65

6.00

6.00

6.05

Discharge.

Scc.-ft.

271

268

230

214

489

808

1,060

700

2,860

956 

936

1,090

3,760

2,480

3,010

3,120

Date.

1908.

October 6.......

October 13. ... 

October 16......

October 23......

October 30......

1 November 4.. ..

November 6... .

November 7. ...

Gage 

height.

Feet.

4.90

4.70

4.30

4.15

3.95

3.85

3.90

3 65

3.65

3.55 

3.50

3.75

3. (55

3.55

3.50

. 3.45

3.45

2.95

Discharge.

Sec.-ft.

1,350

1,060

828

758

498

565

473

384

387

355 

320

501

409

376

370

342

336

ol25

Date.

1908.

December 16....

Gage 

height.

Feet.

3.45

4.85

3.60

3.40

3.50

3.65

12.40 

13.00

3.55

Discharge.

Scc.-ft. 

600

356

455

372

490

502

61,300

9,710

4,250

4,340

450

554

a Shut gate at Roosevelt caused drop in river, b Gaging was iniluenced by high water in Verde. 

Daily gage height, infect, of Salt River at McDowell, Ariz.,for 1907.

Day.

1........ .......

2. ..... ..... .

3...............

4...............

5. ..............

6...............

1. ..............

8...............

9... ............

10. ..............

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

12...............

13...............

14...............

15...............

10..............

17....... ..... .

18...............

19...............

20...............

21...............

22.

23!.".....!!...!!.

24 ..............

25...............

26...............

27...............

28. ... ... .

29...............

30...............

31...............

Jan.

7.05

6. 45

6. 05

5.75

5.50

5.00

6.30

0.60

0. 55

7.80

7.40

6.78

6.15

5 8''

5. 55

5 50

5.75

5. 98

5.90

0.00

5.90

5.72

5. f>0

5. 58

5.50

5.32

5. 30

5. 30

5.30

5. 30

0. 55

Feb.

7.02

6 80

6. 50

(>. 30

0.08

6.00

0. 05

6. 15

6. 15

5.90

5.88

5.80

5. 68

5.58

5.50

5.40

5.40

5.42

5. 55

5.72

5. 08

5.02

5. 55

5.92

0. 10

5.98

5. 80

5.62

.......

Mar.

5.05

5.05

5.70

5.75

5.82

10. 35

7.95

7.12

6. 55

0.45

6.30

5.98

0. 05

6 98

5,90

5.85

5.72

5.70

5.80

0. 00

6. 25

6.40

8.00

7.80

7.15

6. 55

6. 30

0.12

6.02

5. 82

5. 65

Apr.

5.52

5.52

5.50

5.62

5.78

5.52

5.50

5.50

5.50

5.52

5.50

5.48

5.50

5.45

5.40

5.25

5.18

5.05

4.95

4.80

4.74

4.68

4.60

4.48

4.40

4.32

4 22

4.14

4.05

4.05

May.

4.05

4.10

4.08

4.00

3.90

3.78

3.70

3.05

3. 60

3.60

3.55

3.50

3. 45

3.40

3.40

3.40

3.35

3.35

3.30

3.25

3.22

3.20

3.15

3.18

3.20

3.20

3.20

3.20

3.22

3.28

3.30

June.

3.35

3.30

3.22

3.15

3.08

3.05

3.02

3.00

3.05

3.05

3.00

2.98

2.90

2 88

2! 85

2.82

2.80

2.75

2.70

2.68

2.68

2.80

2. 75

2.70

2.68

2.58

2.52

2.48

2.42

2.38

July.

2.35

2.30

2.30

2.30

2.25

2.20

2.20

2.20

2.22

2.20

2.22

2.20

2.20

2.18

2.15

2.12

2.12

2.12

2.10

2.10

2.10

2.08

2.32

2.65

3.58

3.15

2.92

2.80

2.80

2.02

2.80

Aug.

2.60

3.15

3.35

4.00

3.65

3.38

3.15

2. 98

2.85

2.78

2.69

2.00

2.58

2.52

2.45

2.50

2.50

2.70

2.72

3.25

3.42

3.15

3.80

3.82

4.01

3.95

3.48

3.72

4. 58

5. 5S

7. 15

Sept.

5.85

5. 45

5.15

S. 52

5.57

4.92

4.77

4.60

4.10

4 15

3. 90

3.72

3. 58

3.50

3.50

3. 50

3.40

3.27

3.18

3.12

3.02

2.95

2.90

2. So

2.87

2.75

2.70

2. 65

2.62

2.60

Oct.

2.58

2.55

2.55

2.55

2.55

2.55

2. 55

2.60

2. 05

2.02

2.00

2.00

2.58

2.55

2.50

2.50

2.50

3.85

5.00

4. 25

3.95

3.50

3. 50

4. 30

0.55

5. 75

5.20

4.98

4. 60

4.40

4.20

Nov.

4.10

4.05

4.10

4.08

3.98

3. 88

3. 82

3.75

3.70

3.70

3.70

3.72

3.82

3.75

3.75

3.70

3.68

3.05

3. 08

3.78

3.75

3.70

3. 60

3.52

3.48

3.40

3.35

3.30

3.30

3. 30

Dec.

3.28

3.25

3.20

3.20

3.20

3.20

3.15

3.15

3.15

3.10

3.10

3.10

3.10

3.10

3.08

3.05

3.05

3.05

3.05

3.00

3.00

3.00

3.00

3.00

2.95

2.95

3.00

3.00

3.00

3.00

3.00
GILA RIVER DRAINAGE BASIN." -*^, 189

Daily gage height, infect, 'of Salt River at McDowell, Ariz.,for 1908.

Day. Jan.

1............... 3.00

4..... ......... 3.00

5............... 3.00

0 .. ......... 3.02 

7............... 3.05 

8............... 3.00 

9............... 3.00 

10............... 3.00

11............... 3.00

12.............. 3.00

14............... 2.95 

15............... 2.95

16............... 2.98

18............... 2.95 

19............... 2.95

20. .............. 2. 95

21............... 2.95 

22............... 2.95

24 ....... 2. 95 

25. .............. 2. 95

27............... 2.95

28............... 2.95 

29............... 2.95 

30 9 9)

31............... 2.95

Feb.

2.90

9 90

2 9$

12. 22

8.00

5.85 

5.70 

5.52 

5. 45 

5.32

5.10

5.02 

5.18

5. 22 

5.10

5.30

5.48

5.60 

5.95

5.65

5.15 

5.12

6.30

5.82

5.40

5.35 

5. 35

Mar.

5.35

5.22

0.12

8.95 

6.62 

6.02 

5.68 

5.48

5. 30

5.15 

5.12

5.00 

5.05

5.12 

5.32

5.55 

5.60

5.75 

5.72

5.50 

5.30

5.45 

5.30 

5. IS

5. 00

Apr.

4.88

4 60

4.70

4.80 

4.75 

4.75 

4.72 

4.72.

4. 62

4.55 

4.42

4.42 

4.40

4.40

4.35 

4.30

4.25

4.20 

4.25

4.35

4.35

4.30 

4.22

May.

4.10

4.10

4.10

4.10

4.05 

4.02 

4.10 

4.17 

4.10

4.00

3.92 

3.88

3.85

3.78

3.72

3.62 

3.58

3.52

3.50 

3.50

3.55

3.55

3.48

3.42

3. 32 

3.30 

3. 25

3.20

June.

3.20

3.15

3.10

3.10 

3.10 

3.08 

3. 05 

3.02

2.95

2.90 

2. 90

2.90

2.88

2.85

2.85 

2. 85

2.80

2.80 2 79

2.70

2.70

2.65

2.60

2.00 

2.58

July.

2.52

2.50

2.45

2.40

2.40 

2.38 

2.35 

2.35 

2.48

2.68

2. 55 

2.70

2.85 

2.98

3.30

3.98 

4.60

4.45 

3.70

3.22

4.20

3.98

5.88 

4.92

3.95

Aug.

4.38

4.05

3.88

4.12

4.20 

4.18 

4.38 

4.70 

4.70

4.18

4.00 

4.08

4.12 

3.85

5.08 

4 68

6.05 

6.35

6.25

6.05 

6 60

5.88 

5.70

5.98

5.95 

5.92 

6.10

6.20

Sept.

5.98

5.85

6.00

5.78

5.40 

5.10 

4.95

4.75 

4.62

4.70

4.58 

4.45

4.40 

4.30

4.22

4.15 

4.10

4.05

4.00 

3.92

3.90

3.90

3.95

3.88

Oct.

3.80

3.70

3.65

3.65 

3.65 

3.62 

3.65 

3.60

3.60

3.55

3.50 

3.50

3.50

 ? en

3.45

3.75

3.70 

3.68 Q 1:9

3.60

3.50 

3.50

3.50

Nov.

3.45

' 3.32 

2.95 

2.95 

3.50 

3.98

3.58

3.45

3.45 

3.15

2.80 

4 58

3.50 

3.45

3.52

3.15 

3.70

3.40

3.40

3.40

3.50 

3. 55

Dec.

3.50

4.02

3.85 

3.75 

3.70 

3. 05 

3.60

3.55

3.50

3.50 

3.95

12.25

9.45 

7.18

6.40 

6.15

6. 02

5.75

4.00 

3.45 

3. 25

3.42

Daily discharge, in second-feet, of Salt River at McDowell, Ariz.,for 1901

Day.

1...............

9

3...............

;»- -- --------

6............. ..

9... ...... 

10...............

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

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20. ..............

21...............

22...............

23...............

24...............

26. ..............

27...............

28...............

29...............

30. ..............

31...............

Jan.

6, 750

5.200

3,940

3.130

2,630

2,850

4, 600

5, 630

5.540 

9,870

8,290

6, 000

4,130

3,340

2, 850

2,690

3, 190

3,500

3, 160

3,400

2. 620

2, 340

2,290 

2,100

1,820

1,760

1.900

Feb.

8, 860

5,350

4, 440

3,900

3,320

3,150

3,230

3,260

3,490 

2,910

2,900

2, 820

2,540

2,340

2,200

2,110

2,140

2,200

2,400

2, 640

2, 580

2,540

2,430

3,080 

3,780

3,040

2,820

Mar.

2, 760

2, 760

2,840

2,900

3,000

18, 600

8,880

6,170

4,470 

4, 260

3,940

3,300

3,380

3,010

2,740

2,570

2 370

2,330

2,430

2,840

3, 400

3,950

11,900

8,950 

6,710

4,470

3,600

3,380

3,120

Apr.

2.900

3,070

2,890

3,180

3,740

2,970

3,070

3,140

3,170 

3,340

3,270

3, 120

3,150

3,120

3,080

2,880

2,800

2,470

2,230

2,090

1,980

1,880

1,760

1,590 

1,470

1,290

1,250

1,200

1,200

May,

1,250

1,280

1,270

1,240

1,160

1,080

1,000

980

960 

960

922

890

840

800

783

800

820

785

760

690

653

670 

698

700

700

703

750

800

858

June.

860

820

780

716

690

653

640

635

635 

635

628

620

534

630

523

510

cnn

494

490

490

500

524

510

505 

500

470

450

375

360

July.

350

341

340

340

320

300

310

310

340 

320

320

320

314

310

305

305

305

304

304

304

308

410

630 

1,230

680

620

580

490

570

Aug.

500

830

1,040

1,420

1,140

960

740

630

540 

510

470

440

430

410

393

396

396

440

500

760

880

770

1,220

1,260 

1,350

1,270

930

1,270

2,230

3,500

7,100

Sept.

3,150

2,450

2, 130

2.750

2,870

1,950

1,880

1,670

1,530 

1,360

1,210

1,100

910

831

830

820

780

740

670

660

640

590

560

530 

530

480

450

430

410

Oct.

400

395

395

395

397

397

400

440

472 

460

456

440

410

380

347

350

1,350

2,620

1, 650

1.400

1,040

1,040

1,580 

6,700

2,330

1.950

1,600

1,390

1,200

Nov.

1,150

1,120

1,150

1,140

1,090

1,020

1,010

970

955 

960

970

990

 1,060

1,020

1,020

990

980

900

1,000

1,090

1,080

1,030

949

900

880

780

770

700

749

Dec.

730

710

076

670

670

661

650

640

630 

600

600

000

000

580

570

550

530

476

470

460

450

448 

440

440

443

440

430

420

415

NOTE. These discharges were obtained by the indirect method for shifting channels.
190 SUEFACE WATEB SUPPLY, 1907-8.

Daily discharge, in second-feet, of Salt River at McDowell, Ariz.,for 1908 Cont'd.

Day.

1...............

2..... ..........

3...............

5. ..............

6...............

8...............

9...............

10...............

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

12...............

13...............

14...............

15...............

16...............

17. ..............

19...............

20. ..............

21 ...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30. ..............

31...............

Jan.

426

426

460

428

428

428

428

400

400

400

400

400

400

405

400

400

392

390

385

383

390

394

Feb.

370

370

30,900

16,900

3,800

2,700

2,490

2,290

2,030

2,130

2,010

1,930

2,240

3,200

2,540

2,150

1,600

3,400

4,800

3,000

2,640

2,640

Mar.

2,640

2,700

2,500

3,950

23,500

5,600

4,450

3,850

3,300

2,840

2,570

2,410

2,510

2,790

3,190

3,440

3,870

3,960

3,680

3,200

3,180

2,800

2,590

2,740

2,860

2,580

2,350

2,130

Apr.

1,960

1,750 i 7nn

1,680

1,830

1,940

1,930

1,980

2,050

2,100

1,960

1,860

1,700

1,670

1,600

1,570

1,520

1,470

1,420

1,360

1,440

1,520

1,580

1,580

1,580

1,570

1,500

1,410

1,320

May.

1,230

1,220

1,210

1,190

1,190

1,170

1,160

1,260

1,270

1,210

1,130

1,080

1,030

1,000

910

878

864

845

820

700

790

800

800

800

800

740

690

665

640

630

June.

630

625

610

579

560

540

523

508

480

461

450

440

427

430

434

436

440

420

410

390

387

370

345

330

310

300

385

271

July.

270

270

268

250

240

230

220

214

260

360

300

370

460

530

730

1,100

1,160

1,600

1,480

1,000

800

760

680

1,000

1,360

1,260

3,500

2,500

1,300

930

Aug.

1,240

1,020

940

1,100

1,130

1,100

1,230

1,470

1,470

1,080

1,010

1,030

1,780

1,400

3,270

4,100

4,120

3,820

5,440

3,920

2,600

2,410

2,880

2,930

2,910

2,900

3,280

3,470

Sept.

3,000

2,450

2,650

2,860

2,500

1,920

1,570

1,410

1,180

1,030

1,060

980

900

880

828

790

780

758

740

660

620

560

540

530

498

500

540

590

560

530

Oct.

500

473

460

400

384

385

380

387

370

370

355

350

330

330

320

320

300

390

501

460

440

410

400

400

390

376

370

370

370

370

Nov.

350

342

340

340

336

125

125

490

600

460

360

356

350

210

80

1,070

400

370

420

250

530

390

382

370

360

344

390

410

400

Dec.

372

360

420

812

700

590

540

490

470

430

396

410

410

690

11,300

35,000

18,800

9,710

6,000

4,700

4,250

4,200

4,340

4,100

3,700

3,100

840

450

360

470

NOTE. These discharges were obtained by the indirect method for shifting channels.

Monthly discharge of Salt River at McDowell, Ariz.,for 1907 and 1908. 

[Drainage area, 6,260 square miles.]

Month.

1907.

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

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

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

The year . . ....................

Discharge in second-feet.

Maximum.

a 10, 200 

a. 9, 980 

a 19, 500 

3,740 

1,280 

860 

1,230 

a9,200 

a3,500 

o9,400 

1,150 

730

19,500

Minimum.

1,760 

2,110 

2,330 

1,200 

653 

360 

300 

393 

410 

347 

749 

415

300

Mean.

3,780 

3,210 

4,640 

2,490 

883 

570 

421 

1,120 

1,180 

1,180 

979 

554

1,750

Per 

square 

mile.

0.604 

.513 

.741 

.398 

.141 

.091 

.067 

.179 

.188 

.188 

.156 

.088

.280

Run-off.

Depth in 

inches on 

drainage 

area.

0.70 

.53 

.85 

.44 

.16 

.10 

.08 

.21 

.21 

.22 

.17 

.10

3.79

Total in 

acre-feet.

232,000 

178,000 

285,000 

148,000 

54,300 

33,900 

25,900 

68,900 

70,200 

72,600 

58,300 

34,100

1,260,000

o See footnote at end of table, next page.
GILA RIVER DRAINAGE BASIN. 191

Monthly discharge of Salt River at McDowell, Ariz.,for 1907 and 1908 Continued.

Month.

1908.

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

Discharge in second-feet.

Maximum.

493 

047,300 

a 24, 200 

2,100 

a 1,300 

630 

a7,700 

a5, 720 

a3,150 

501 

a 1,300 

a40,000

47, 300

Minimum.

383 

370 

2,130 

1.320 

630 

271 

214 

840 

498 

300 

80 

360

80

Mean.

411 

3,980 

3,900 

1,670 

957 

456 

827 

2,190 

1,150 

391 

375 

3,840

1,680

Per 

square 

mile.

0.066 

.636 

.623 

.267 

.153 

.073 

.132 

.350 

.184 

.062 

.060 

.613

.268

Run-off.

Depth in 

inches on 

drainage 

area.

0.08 

.69 

.72 

.30 

.18 

.08 

.15 

.40 

.21 

.07 

.07 

.71

3.66

Total in 

acre-feet.

25,300 

229,000 

240,000 

99,400 

58,800 

27,100 

50,800 

135,000 

68,400 

24,000 

22, 300 

236, 000

1,220,000

o Maximum discharge recorded for the month. These occurred in 1907 on January 10, February 1, March 

6, August 31, September 1, and October 25, and in 1908 on February 4, March 6, May 8, July 28, August 

22, September 1, November 17, and December 17.

VERDE RIVER AT McDOWELL, ARIZ.

This station, which was established April 20, 1897, to determine 

the quantity of water in the Verde available for irrigation, is located 

30 miles northeast of Phoenix, 15 miles northeast of Mesa, 2J miles 

above the Arizona canal diversion dam, and three-fourths mile above 

the mouth of the river.

As the bed of the stream at this point is sandy and shifting, frequent measurements are required to properly determine the daily 

discharge.

The results published herewith were furnished by the United 

States Reclamation Service.

Discharge measurements of Verde River at McDowell, Ariz., in 1907 and 1908.

[By W. Richins.J

Date.

1907.

January 25 . ...

February 12 ...

February 22 ...

February 26 ...

Gage 

height.

Feet. 

5.70

4.30

4.20

5.95

7.75

4.40

3.50

3.40

3.35

3.25

8.9

6.75

5.45

5.00

3.10

2.70

4.30

2.75

3.70

Discharge.

Sec.-ft. 

2,610

1,650

1,690

3,710

6,730

1,940

1,130

1,210

1,180

1,230

12,500

5,000

3,360

3,380

1,530

1,100

2,830

1,340

2,310

Date.

1907.

March 12.......

March 23 .......

March 25. ......

March 27 .......

April2. ........

April 9 .........

April 11 ........

April 13 ........

April 15........

April 17........

Gage 

height.

Feet. 

2.90

9.00

4 95

3.40

3.35

6.80

5.44

3.70

3.60

3.40

4.25

3.30

3 0^

2.90

2.75

2.60

Discharge.

Scc.-ft. 

1,610

n

onn

1,520

896

7,150

2,510

1,600

1,060

1 060 700

639

551

462

Date.

1907. 

April 19........

April 23 ........

April 26. .......

May2. .........

May7. .........

May 11.........

May 13 .........

May 15. ........

May 21. ........

May 23 .........

May 25.........

May 31. ........

June 6. .........

Gage 

height.

Feet. 9 50

2.45

2.40

2.40

2.40

2.30

2.30

2.30

2.25

2.25

2.30

2.30

2.25

2.20

2.35

2.30

2.25

Discharge.

Sec.-ft.

4(W

097

293 001

292

321

9<Y7

271

245

224

232

266

247

208

274

948

218
192 SURFACE WATER SUPPLY, 1907-8.

Discharge 'measurements of Verde River at McDowell, Ariz.,in 1907 and 1908 Continued.

Date.

1907.

July 2 ..........

July 9..........

July 11 .........

Julv 13 .........

July 10.........

July 20.--....-.

July 23.........

July 25. ........

July 27. ........

Julv 30.........

August 6. ......

August 10......

August 17. ..... 

August 20......

August 24 ...... 

August 27. .....

September 2. ...

September 24. . . 

September 26. . . 

October 1.......

October 3.......

October 9......

October 11......

October 15. . ....

October 19......

October 22...... 

October 24. .....

October 25. .....

October 29. .....

October 31......

November 2 ....

November 5 .... 

November 7 .... 

November 9....

November 12. . .

Gage 

height.

Feet. 

2.20

2.20

2.25

2.20

2.20

2.20

2.15

2.10

2.10

2.10

2.05

2.10

2.15

2.00

2.15

2.60

2.40

2.50

3.50 

2.90

2.70

2.45

2.35

2.25 

'2. 00

2.40

2.50 

2. 55

2.90 

3.00

3.90

3.30

2.90

2.75

2.55

2.50

2.40 

2.50 

2.40

2.45

3.05

2.85

2.90 

3.05

4.20

3.30 

3.80

4.30

3.50

3.15

3.20

3.05 

2.95 

2.90

2. So

Discharge.

Scc.-ft. 

213

212

220

197

198

211

191

179

173

175

192

165

210

196

144

426

275

280

830

338

236

239

200 

316

280

320

288 

267

355

438 

449

1,220

503

422

352

275

244

192 

225 

193

207

297

552

327

424 

462

590 

993

1,560

408

557

451

308 

304

321

Date.

1907.

December 24....

1908.

January 28. ....

February 11....

February 18 .... 

February 20 .. . 

February '^'^

February 27. ... 

March 3. ....

March 9....... . March 11.......

March 17.......

March 20......

March 24...... 

March 27....... 

March 31 .......

Aprils........

April 10........

April 17.... ... 

April 21........

April 28....... 

May 1..........

May 5.. ........

May 12. ........

May 15.........

May 19......... 

May 22......... 

May 20........

May 29.........

Gage 

height.

Feet. 

2.90

3.00

3.05

2.95

2.95

2.95

9 95

2.95

2.95

3.00

2.95

2.95

2.95

3.00

3.00

2.95

2.95

2.95

2.95

2.95 

3.00

9.10

5.40

4.10

3.95 

4.00

3.85

3.90 

3.90

4. SO

4.20 

4.50

4.15

6.35

4.70

4.30

4.05

4.35

4.35

3.95 

3.85 

3.75

3.75

3.55

3.45 

3.40

3.55 

3.50

3.50

4.25

3.90

3.70 

3.10 

3.50

3,40

Discharge.

Scc.-ft. 

300

380

393

370

330

315

322

306

331

340

326

309

358

353

299

290

293 ''9''

285 

336

14, 400

3,590

1.430

1,080 

1,260

795

970 

959

1,910

1,350

1,160

4,370

1,540

902

1,010

1,000

519 

478 

405

408

346

302

266

253 

196

316

311 

255

259

2,030

507

333

233 

210 

192

109

Date.

1908.

JulyS..........

July 10.........

July 14.........

July 17.........

July 21 .........

July 22.........

July 24 .........

July 31.........

August 21 ......

August 28.. ....

September 8....

September 18... 

September 22...

October 2.......

October 9.....

October 13......

October 20......

October 93

October 30......

November 4.. . 

November 0 ....

November 27 ...

December 8. ....

December 22.... 

December 24....

December 31....

Gage 

height.

Feet.

3.40

3.30

3.25

3.30

3.25

3.20

3.25

3.20

3.25

3.30

3.85

4.40

4.20

4.00

5.20

6.00

5.10

4.05

5.75 

4.40

4.80

4.20

4.15

4.40

4.20 

4.15

4.10

4.10

4.10

4.10

4.05

4.70

4.40

4.40 

4.40 

4.45

4.45

4.45

4.50 

4.65

5.10

5.10 

4.85

4.95

19.20

10.30

0.25

5.15 

5.00 

4.55

4.45

Discharge.

Sec.-ft. 

139

179

103

151

123

110

123

98

118

130

380

480

376

1,180

090

2,230

992

1,290 

471

703

364

317 

893

395

291 

230 

469

223

220 

210

207

187

175

498

306

295

261

268 

269 

274

286

276

283

307

282 

327

592

587 

355

453

060,000

12,000

3,400

1,310 

905 

595

507

a Float velocity.
GILA RIVER DRAINAGE BASIN. 193

Daily gage height, in feet, of Verde River at McDoicell, Ariz.,for 1907 and 1908.

Day.

1907. 

1...............

2...............

3...............

5...............

6...............

9

10. ..............

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

13. ..............

14...............

15...............

17............... 

18............... 

19. ..............

20. ..............

21...............

22....... .......

23...............

26. ..............

27...............

28...............

29...............

30...............

31...............

1908. 

1.. ............. 

2...............

3...............

4...... ........

5...............

6...............

7...............

8...............

9............... 

10...............

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

12............... 

13...............

14............... 

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24............... 

25...............

26...............

27...............

28...............

29. ..............

30...............

31...............

Jan.

6.30

4.45

4.25

4.20

4.30

4.30

4.25

5.90

6.95

6.10

4.95

4.25

3.60 

3.50 

3.70

3.60

3.42

3.45

3.32

3.35

3.25

3.20

3.28

3.30

3.48

9.80

2.95 

2.95

3.00

2.95

2.95 

3.00

3.00

3.00

2.98 

2.95

2.95 

2.95 

2.98

3.00 

2.98

2.95

2.95

2.95

2.95

2.95

2.95

2.95

2.95 

2.95

2.95

2.95

2.95

2.98

3.00

Feb.

8.65

6.50

5.60

5.20

5.25

5.30

A -7Z.

3.50

3.28

2.88

2.75

2.70

2.62

2.68 

2.60 

4.50

3.45

2.95

2.70

4.02

3.50

2.95

2.85

3.00 

3.00

3.12

9.10

7.90 

5.30

4.50

4.10 

4.10

3.95 

3.90 

4.00

3.90

3 95

4.00

3.92

3.95

3.85

3.82

4.75

5.60 

4.70

4.12

4.30

4.30

Mar.

3.05

3.50

4.37

6.10

13.35

9.05

6 40

4.45

5.05

3.85

3.45

3.20

3.20 

3.00 

2.95

3.05

3.20

3.32

6.70

3.85

3.70

3.80

3.60

3.50

3.50

4.45 

4.75

4.30

4.52 

8.35

5.95

5.35

4.75 

4.55

4.32 

4.18 

4.02

3.95

4. 18

4.38

4.48

4.48

4.35

4.30

4.15

3.98

3.92 

3.85

3.85

3.80

3.75

3.75

Apr.

3.45

3.42

4.85

4.22

4.05

3.75

3.30

3.12

3.02

2.90

2.84

2.78

2.60 

2.55 

2.50

2.50

2.48

2.45

2.45

2.40

2.40

2.40

2.38

2.35

2.40

3.75 

3.75

3.75

3.70

3.70 

3.70

3.65

3.60

3.58 

3.55

3.55 

3.50 

3.50

3.50 

3.45

3.45

3.45

3.45

3.40

3.40

3.40

3.40

3.50

3.55 

3.60

3.60

3.55

3.52

3.50

May.

2.40

2.35

2.38

2.40

2.35

2.30

2.30

o qo

2.30

2.32

2.30 

2.28

2.25

2.25

2.25

2.25

2.28 

2.25 

2.25

2.25

2.28

2.25

2.25

2.22

2.20

2.22

2.30

2.35

2.35

3.50 

3.50

3.50

3.48

3.50 

3.58

5.95

5.10 

4.65

4.28 

4.25 

4.12

3.98

3.85

3.80

3.72

3. 68

3.60

3.60

3.60

3.55

3.50 

3.50

3. SO

3.40

3.40

3.40

June.

2.35

2.32

2.28

2.28

2.28

2.25

9 30

2.25

2.20

2.25

2.25

2.20

2.20 

2.20 

2.20

2.20

2.20

2.20

2.18

2.15

91^

2.15

2.12

2.10

2.10

3.35 

3.35

3.38

3.40 

3.35

3.35

3.35 

3.35

3.35 

3.35 

3.35

3.30 

3.30

3.30

3.25

3.30

3.30

3.30

3.30

3.28

3.25

3.25 

3.25

3.25

3.25

3.22

3.20

July.

2.10

2.10

2.10

2.05

2.10

2.10

2.10

2.05

2.05

2.10

2.12

2.15

2.25

2.18 

2.15 

2.08

2.00

2.08

2.12

2.18

2.60

2.48

2.44

2.40

2.38

2.32

3.20 

3.25

3.20

3.20

3.20 

3.20

3.20

3.20

3.25 

3.25

3.40 

3.30 

3.25

3.30 

3.62

3.65

3.85

3.92

5.00

4.50

4.35

4.18

4.05

3.98 

4 ^2

3.38

5.02

5.20

5.70

5.15

Aug.

2.40

2.28

2.85

3.70

3.40

3.10

2 90

2.es

2.56

2.42

2.38

2.30

2.25 

2.20 

2.35

2.52

2.40

2.62

2.42

2.50

3.32

2.62

4.85 

4. (18

4 40

4.78

5.37 

6.30

5.85

5.32 

4.85

4.98 

4.98 

4.98

5.20 

4.82

4.30

4.58

4.C8

4.C8

4.50

5.42

5.15

5.30

5.30 

4.40

4.88

4.72

4.55

4.45

4.30

Sept.

3.07

2.90

2.80

3.45

3.90

3.65

0 AQ

3.22

3.00

2.77

2.75

3.20

3.00

2.80 

2.57 

2.52

2.57

2.50

2.45

2.40

2.45

2.40

2.45

2.45

2.45

4.22

4.28

4.22

4.20

4.20 

4.20

4.15

4.40 

4. 60

5.10 

4.80 

4.60

4.48

4.28

4.22

4.20

4.20

4.20

4.18

4.15

4.10

4.15 

4.52

4.20

4.20

4.18

4.10

4.10

.......

Oct.

2.40

2.40

2.45

2.55

2.75

2.95

2.88

2.82 

2.75

2.78

2.82

2.88

3.02 

3.38 

4.15

3.75

3.45

3.28

3.20

4.30

3.90

3.65

3.45

3.25

3.12

4.10 

4.10

4.10

4.10 

4.10

4.10

4.10

4.10 

4.10

4.10 

4.10 

4.10

4.10 

4.08

4.05

4.10

4.60

4.75

4.68

4.60

4.55

4.50

4.45 

4.40

4.42

4.45

4.45

4.42

4.40

4.40

Nov.

3.02

3.20

3.15

3.05

3.00

2.95

2.90

2.90

2.85

2.85

2.90

2.90

2.90 

2.95 

3.00

3.00

3.05

3.00

3.00

2.95

2.95

2.95

2.95

2.95

4.40 

4.40

4.40

4.40

4.40 

4.40

4.40

4.40

4.42 

4.45

4.45

4.45 

4.45

4.50 

4.50

4.45

4.45

4.45

4.48

4.45

4.50

4.50

4.50

4.50 

4.50

4.50

4.50

4.55

4. tO

4.60

Dec.

2.95

2.95

2.95

2.95

2.95

2 95

2.95

2.95

2.95

2.95

2.95

2.95

2.95 

2.95 

2.95

3.00

2.95

2.95

2.95

2.95

2.95

2.95

2.95

2.95

2.95

2.95

2.95.

4.62 

4.60

4.75

5.30

5.30 

5.25

5.20-

5.05

4.90 

4.88

4.85 

4.80 

4.80

4.80 

5.32

17. C5

11.25

7.65

6.12

5.60

.5.35

5.15

5.02,

4.98 

4.88

4.78

4.68

4.60

4.58

4.50

4. 45.

24439 IRR 249 10- -13
194 SURFACE WATER SUPPLY, 1907-8. 

Daily discharge, in second-feet, of Verde River at McDowell, Ariz.,for 1907 and 1908.

Day.

1907. 

1. ..............

2...............

3. ............ .-

5...............

8...............

9

10. ..............

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

12...............

13...............

15...............

19

20. ..............

21...............

22...............

23...............

24. ..............

25...............

26. ..............

27...............

28. ..............

29...............

30...............

31.....--....-...

1908. 

1. ..............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

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

12...............

13...............

14...............

16...............

18. ..............

19...............

20...............

21...............

22...............

23. ..............

24. ..............

25...............

26. ..............

27...............

28...... .........

29...............

30...............

01

Jan.

3,550

2,090

1,760

1,570

1,560

1,730

1,800

1,750

1,920

3,630

5,260

6,450

4,130

2,490

1,730

1,390

1,160

1,130

1,400

1,320

1,240

1,260

1,180

1,180

1,180

1,180

1,200

1,220

1,230

1,420

15,200

300

300

358

300

300

350

353

350

330

299

300

300

310

313

310

300

296

295

295

295

293

293

293

292

290

290

300

285

285

290

336

Feb.

10,200

4,500

3,150

3,000

2,810

2,860

3,370

2,910

2,080

1,640

1,530

1,500

1,300

1,140

1,100

920

880

610

3,120

1,780

1,370

1,280

3.020

8,040

4,000

2,020

1.690

1,510

336

336

400

14,400

9,800

3,400

2,000

1,430

1,400

1,200

1,080

1,000

1,260

1,000

795

1,000

1,100

970

1.000

959

900

808

810

3,000

1,910

1,300

1,350

1,130

1,130

Mar.

1,630

2,000

3,080

3,550

5,670

32,200

11,400

6,350

4.760

3,360

4,100

2,490

1,990

1,570

1,500

1,380

1,230

980

896

980

1,130

1,240

7,120

4,620

2,420

1,790

1,600

1.510

1.230

1,230

2,200

1,550

1,280

1,600

11,000

3,500

2,450

1,540

1,330

962

880

780

720

784

880

1,010

1,170

1,160

1.000

970

7CO

570

519

480

480

478

470

420

410

Apr.

1,150

1,060

3,100

2,220

2,170

1,940

1,530

1,260

1,060

860

760

710

639

610

570

510

462

430

403

400

370

330

327

320

300

293

390

340

300

330

405

408

405

400

400

346

320

310

302

300

270

270

266

260

255

253

250

200

200

196

200

280

316

330

330

320

311

270

255

May.

330

292

300

321

290

257

260

270

271

270

245

240

224

230

232

230

260

240

230

230

240

230

226

220

208

210

220

230

240

270

274

255

255

255

250

259

280

2,410

2,030

1,360

850

550

507

430

360

333

310

290

250

233

210

210

210

200

200

195

192

190

180

169

160

160

June.

270

260

248

240

230

220

220

213

240

220

212

220

226

220

197

197

198

198

200

211

200

191

185

178

180

180

186

180

173

173

140

140

139

150

179

163

163

163

163

163

163

163

163

151

151

151

140

150

150

150

150

140

131

130

130

123

120

120

120

110

July.

173

173

173

173

170

192

190

170

165

165

167

200

210

220

230

241

230

196

170

144

150

160

170

170

470

420

320

300

280

270

270

110

125

120

110

110

100

98

100

115

118

170

130

120

130

270

300

380

400

1.020

650

480

376

350

325

400

200

1.020

2,350

1,200

1,780

1,180

Aug.

280

200

640

2,100

1,040

740

570

487

410

340

270

240

230

230

239

220

206

460

210

280

280

280

300

320

300

310

280

230

267

1.020

360

690

580

440

640

1,400

2,600

2, 230

1,420

1,330

780

860

SCO

SCO

740

420

600

650

650

570

1,080

920

1.000

1,000

471

590

750

703

570

500

380

Sept.

370

438

350

390

740

1,220

920

730

570

510

420

410

360

352

600

450

330

280

270

270

244

220

192

200

200

220

200

220

220

220

364

380

370

364

360

350

310

317

450

560

880

620

510

400

380

340

310

291

290

290

250

230

210

230

430

260

260

240

223

223

Oct.

193

193

207

230

297

380

410

690

552

390

310

290

310

350

400

350

430

730

1,570

980

680

580

580

1,120

1,730

1,560

1,100

820

640

510

460

221

220

218

215

212

210

209

208

207

202

197

192

187

185

180

175

200

450

520

495

410

360

306

290

270

280

295

290

280

261

262

'Nov.

430

557

510

450

450

420

368

368

364

364

364

321

321

321

366

366

366

370

380

380

393

370

370

350

330

325

325

320

319

318

264

265

267

268

268

269

270

270

270

274

278

282

- 286

280

280

280

276

280

280

283

290

295

300

307

300

290

282

290

300

300

Dec.

315

315

315

330

340

350

340

330

330

322

320

310

306

310

320

330

331

330

340

346

326

326

326

326

320

310

309

310

312

315

315

327

310

350

800

800

740

680

500

450

420

400

380

380

380

840

51,600

17,000

5,600

3,400

2.200

1,700

1,310

1,000

905

820

750

680

620

600

540

507

NOTE. These discharges ware obtained by the indirect method for shifting channels.
MISCELLANEOUS MEASUREMENTS. 195

Monthly discharge of Verde River at McDowell, Ariz.,for 1907 and 1908. 

[Drainage area, 6,000 square miles.]

Month.

Discharge in second-feet.

I Mas

January...............................i a 18,000

February.............................' a 11,300

March................................. a 38,200

April..................................: 3,100

May...................................! 330

June..................................I 270

July.......................-.......-...! 470

August................................ 2,100

September............................' 1,220

October............. ................. 1,730

November............. .............. 557

December............................. 350

The year........................ | 38,200

1908.

January............................... 358

February............................. o 15,600

March.................................. "13,000

April.................................. 408

May........................-..........: a 2, 600

June.................................. 179

July...................................' a 3,860

August................................ a 2,800

September............................ "893

October...................... ........ a600

November............................ : 307

December............................. a 60,000

The year........................ 60,000 !

Minimum.

1,130

610

896

293

208

173

144

200

192

193

318

306

144

285

336

405

196

160

110

98

380

210

175

264

310

Mean.

2,430

2,620

3,770

838

251

209

217

430

404

614

375

323

Per 

square 

mile.

0.405

.437

.628

.140

.042

.035

.036

.072

.067

.102

.062

.054

1,040 i 173

306

1,970

1,400

301

443

146

463

880

356

265

281

3,130

.051

.328

.233

.050

.074

.024

.077

.147

.059

.044

.047

.522

Run-off.

Depth in

inches on

drainage

area.

0.47 

.46 

.72 

.16 

.05 

.04 

.04

.12 

.07 

.06

.06 

.35 

.27 

.06 

.09 

.03 

.09 

.17 

.07 

.05 

.05

Total in 

acre-feet.

149,000

146,000

232,000

49,900

15,400

12,400

13,300

26,400

24,000

37,800

22,300

19,900

748,000

18,800

113,000

86,100

17,900

27,200

8,690

28,500

54,100

21,200

16,300

16,700

192,000

600,000

o Maximum discharge recorded during the month. These occurred in 1907 on January 31, February 1 7 March 6; and in 1908 on February 4, March 6, May 7, July 28, August 6, September 11, October 19, and 

December 16.

MISCELLANEOUS MEASUREMENTS IN GREEN RIVER DRAINAGE BASIN.

The following miscellaneous discharge measurements were made in 

Green River drainage basin during 1908:

Measurements in Green River basin, 1908.

Stream. Tributary to 

July 28, 1908.... 

July 29,1908....

July 30,1908.

East Fork of Lake

Fork. 

West Fork of Lake .....do.

Fork. |

Rock Creek........ .....do.

Locality.

Duchesne River... Above forks near Whiterocks, Utah.

At lakes, 12 miles above 

forks near Whiterocks, 

Utah.

Below Still water Lake,Wasatch County, Utah.

Gage 

height.

»2.20

Discharge.

Sec.-ft. 

289

252

258

a At gage used in 1904, see Water-Supply Paper 133, p. 124.
196 SURFACE WATER SUPPLY, 1907-8.

MISCELLANEOUS MEASUREMENTS IN GRAND RIVER DRAINAGE BASIN.

The following miscellaneous discharge measurements were made in 

Grand River drainage basin during 1906, 1907, and 1908:

Miscellaneous measurements in Green River basin.

Date.

Nov. 30, 1908....

Oct. 2,1907.....

July 3, 1908. ....

Aug. 19, 1908....

Sept. 18, 1908...

June 20, 1907....

July 18, 1907. . . .

Oct. 13,1907....

June 20, 1907. . . .

July 20, 1907. . . .

Oct. 12, 1907....

June 20, 1907...

July 20, 1907. . . .

Oct. 13,1907....

July 17, 1907....

Oct. 11, 1907....

June 20, 1907...

July 17, 1907....

Oct. 12,1907....

June 20, 1907...

July 18, 1907....

Oct. 12, 1907....

Nov. 20, 1907. . .

Feb. 12, 1908...

Apr. 15, 1908...

Apr. 17,1908...

Aug. 21, 1908...

June 16, 1906 e..

June 8, 1907 ....

Aug. 20, 1907...

Aug. 22, 1908....

Sept. 22, 1908...

Nov. 29, 1908...

Tipp 1 Q 1 Qft7

Feb. 13, 1908....

Aug. 27, 1908....

Sept. 25,1908...

Dec. 2, 1908....

Feb 12 1908

Feb. 29, 1908....

Apr. 1,1908....

Mar. 29. 1908....

Stream.

Lake. 

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

Willow Creek......

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

Williams Fork.....

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

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

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

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

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

South Fork of

Williams Fork. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Yule Creek........

Tributary to 

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

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

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

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

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

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

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

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

Williams Fork.....

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

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

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

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

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

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

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

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

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

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

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

Blue River. ........

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

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

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

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

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

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

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

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

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

.....do..........:...

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

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

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

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

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

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

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

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

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

.....Jo..............

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

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

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

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

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

Crystal River......

Locality.

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

Colo.

Above South Fork ..........

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

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

Below South Fork. .........

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

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

6 miles above junction with

Blue River, near Dillon, 

Colo. 

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

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

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

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

Dillon, Colo.

Colo.

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

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

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

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

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

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

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

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

Springs, Colo.

near Basalt, Colo. 

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

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

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

Colo. 

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

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

Marble, Colo. ...............

Gage 

height.

Feet.

«4.0

63.20

b2. 95

3.0

1.4

.8

4.0

1.4

 4

4.5

2.4

1.6

3.0

1.2

2.5

1.0

4

1.5

.5

.2

........

........

.30

.35

.45

Discharge.

Sec.-ft.

116

33

14

93

25

262

50

( 548

19

c880

9

30

5

c75

15

2

21.5

11.1

33.8

21.9

70

4.1

d35

44

50

37

d20

dl8

d 4

dlO

d24

45

40

d 4

137

d 6

/ 14.9

d 15

d 10

93

100

90

120

124

6

a Below head of spike in overhanging pine tree on right bank 200 feet above mouth. 

b Nail in upstream end of center cross beam of wooden road bridge J mile above mouth, taken as elevation 9.00 feet.

c Discharge estimated from high-water marks by Kutter's formula, discharges and dates approximate, 

d Discharge estimated.

t Not published in Water-Supply Paper 211. 

/ Float measurement.
MISCELLANEOUS MEASUREMENTS. 197 

Miscellaneous measurements in Green River basin Continued.

Date.

July 18, 1908....

Aug. 25, 1908....

Sept. 24, 1908...

Dec. 3, 1908. ....

July 18, 1908....

July 18, 1908....

July 18, 1908.... 

Aug. 25, 1908....

Sept. 24, 1908...

July 18, 1908....

Sept. 24,1908...

Oct. 30, 1908....

Dec. 3, 1908. . . . .

July 18, 1908. . .

Aug. 25,1908...

Sept. 24, 1908...

Oct. 30, 1908. . .

Sept. 24, 1908...

Oct. 30, 1908....

Dec. 3, 1908....

Stream.

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

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

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

Pioneer ditch ..... 

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

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

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

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

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

Big Four ditch ....

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

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

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

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

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

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

Tributary to 

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

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

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

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

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

Thompson Creek. 

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

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

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

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

tal River. 

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

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

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

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

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

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

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

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

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

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

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

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

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

Locality.

Colo. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Gage 

height.

Feet.

.57

.68

.60

Discharge.

Sec.-ft. 

0.3

6.6

10.2

a, .5

11.2

o8.0

ol.5

a 1.0

&13.8 

a 0.15

& 6. 2

b!5

b 15.9

&8.0

a 1.2

0

«8

7.6

3.6

1.8

a 12

M2.8

&16

ol.5

ol.5

a Discharge estimated. t> Float measurement.

NOTE. The measurements of Williams Fork and its tributaries were made by A. L. Fellows and H. F. 

Fellows in connection with an investigation of water supply for the Intermountain Water Company.

MISCELLANEOUS MEASUREMENTS IN VIRGIN RIVER DRAINAGE BASIN.

The following miscellaneous measurements were made in Virgin 

River drainage basin during 1908:

Miscellaneous measurements of Muddy River in Virgin Rirer basin.

Date.

Oct. 10,1908....

Dec. 4, 1908....

Stream.

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

Tributary to 

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

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

Locality.

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

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

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

Gage 

height.

Feet. 

1.70

1.60

1.50

1.67

Discharge.

Sec.-ft.

40.5

44.8

53.8

NOTE. The gage heights were taken at the gaging station on Muddy River near Moapa, Nev.
INDEX.

A. Page.

Accuracy, degree of........................ 26-27

Acknowledgments to those aiding........... 28-29

Acre-foot, definition of....................... 13

Alamo River near 

Brawley, Cal.:

discharge............................ 52

Alma, N. Mex.,

San Francisco River at:

description........................ 177-178

discharge............................ 178

discharge, daily..................... 179

discharge, monthly.................. 180

gage heights......................... 179

Animas River at 

Aztec, N. Mex.:

description.......................... 158

discharge............................ 158

discharge, daily..................... 160

discharge, monthly................ 160-161

gage heights......................... 159

rating tables ........................ 160

Appropriations; amount of.................. 7

Authority for investigations, recital of....... 7

Aztec, N. Mex.,

Animas River at:

description.......................... 158

discharge............................ 158

discharge, daily. .................... 160

discharge, monthly................ 160-161

gage heights......................... 159

rating tables......................... 160

B. 

Basalt, Colo.,

Frying Pan River at:

description........................ 133-134

discharge............................ 134

discharge, monthly.................. 135

gage heights......................... 134

rating table......................... 134

Roaring Fork near:

discharge............................ 1%

Big Four ditch at 

Sewell, Colo.:

discharge............................ 197

Blanco, Cclo.,

San Juan River at:

description.......................... 157

discharge............................ 157

gage heights......................... 157

Blue River near 

Kremmling, Colo.:

description........................ 121-122

discharge............................ 122

discharge, monthly.................. 124

B lue River near 

Kremmling, Colo. Continued.

gage heights....................... 122-123

rating tables......................... 123

Bobtail Creek:

discharge............................ 196

Bolster, R. H., work of...................... 30

Brawley, Cal. 

Alamo River near:

discharge............................ 52

New River near:

discharge............................ 52

C. 

Carbondale, Colo.,

Crystal River near:

description.......................... 135

discharge.......................... 135,196

discharge, monthly.................. 136

gage heights......................... 136

rating table......................... 136

ditches near:

discharge............................ 197

Nettle Creek near:

discharge............................ 197

Thompson Creek near:

discharge............................ 197

Cascade Creek near 

(above) Durango, Colo.:

dam, view........................... 128

Central Colorado Power Co., cooperation of.. 29 

Chatfield,C. L., \\ork of..................... 29

Chevelon Fork near 

Winslow, Ariz.:

description.......................... 171

discharge............................ 171

gage heights....................... 171-172

Clear Creek near 

Winslow, Ariz.:

description.......................... 172

discharge............................ 172

gage heights......................... 173

Cliff, N. Mex.,

Gila River near:

description.......................... 176

discharge............................ 176

gage heights......................... 176

Colorado, cooperation of..................... 28

mountain streams in, snow and ice on,

view of.......................... 32

Colorado River at 

Hardy.ville, Ariz.:

description.......................... 39

discharge............................ 40

discharge, daily..................... 41

discharge, monthly.................. 41

gage heights......................... 40

199
200 INDEX.

 Colorado River at Page. 

Yuma, Ariz.:

description.......................... 41-42

discharge............................ 42-43

discharge, daily..................... 45

discharge, monthly.................. 46

gage heights......................... 44

'Colorado River basin:

description.......................... 30-35

gaging stations...................... 35-36

miscellaneous measurements....... 196-197

stream flow in...................... 36-195

Computing, office methods of................ 21-26

Continental Divide, view on................. 32

Cooper, R. L., work of....................... 29

Cooperation, credit for....................... 28-29

Crystal River near 

Carbondale, Colo.:

description.......................... 135

discharge.......................... 135,196

discharge, monthly.................. 136

gage heights......................... 136

rating table.......................... 136

Current meter, description of. ............... 19-20

use of................................. 18,20-21

views of................................. 22

Current meter stations, views of............. 18

Curves, discharge, figure showing............ 26

D.

Definitions, statements of terms used...... 13

Delta, Colo.,

Uncompahgre River near:

description.............. ........... 149

discharge............................ 149

discharge, monthly.................. 151

gage heights......................... 150

rating tables......................... 151

Dillon.Colo.,

Snake Creek near:

discharge............................ 1%

Straight Creek near:

discharge............................ 1%

Discharge, computation of................... 21-26

curves for............................... 22

determination of, figure showing......... 26

measurement of......... ............... 16-21

Discharge measurements, nature of ......... 15,16

Dotsero, Colo.,

Grand River at:

discharge............................ 196

Drainage, stream flow and................... 9-10

Drainage basins, list of.. ............. ..... 10

Duchesne River at 

Myton, Utah:

description.......................... 56-57

discharge.................. ......... 57

discharge, daily.... ................ 60

 discharge, monthly.... ............. 61

gage heights......................... 58-59

rating tables................... ..... 59-60

Duchesne River basin:

description.......................... 54-56

miscellaneous measurements. ..... 195

stream flow.......................... 54-79

work................................ 29

Durango, Colo.,

Cascade Creek above: 

dam. view..

Page. 

. 121

E.

Eagle River at or nearEagle, Colo.:

description.......................... 124

discharge, monthly.................. 125

gage heights......................... 125

rating table......................... 125

Gypsum, Colo.:

description........................ 125-126

discharge............................ 126

discharge, monthly.................. 128

gage heights....................... 126-127

rating table......................... 127

Emma, Colo.,

Roaring Fork near:

description........................ 128-129

discharge............................ 129

discharge, monthly.................. 129

gage heights......................... 129

rating table......................... 129

Sopris Creek at:

discharge............................ 196

Equivalents, list of.......................... 14-15

F.

Farmers ditch near 

Tucson, Ariz.:

discharge............................ 182

gage heights......................... 182

Field, Fellows, and Hinderlider, cooperation

of............................... 29

Field practice, methods of................... 16-21

Fletcher, R. H., work of.................... 29

Float method, description of................ 19

Flood prevention, stream flow and.......... 10

Forbes, R. H., on Colorado River silt........ 34

Fort Crawford, Colo.,

Uncompahgre River at:

description.............. ........... 143

discharge ........................... 144

discharge, daily..................... 145

discharge, monthly.................. 145

gage heights......................... 144

rating table......................... 145

Fort Duchesne, Utah, 

Uinta River at:

description.......................... 73

discharge............................ 74

discharge, monthly.................. 77

gage heights......................... 75

rating tables........................ 76

Fraser River at 

Granby, Colo.:

description........................ 113-114

discharge............................ 114

discharge, daily................... 116-117

discharge, monthly.................. 117

gage heights......................... 115

rating tables........................ 116

Freeman, W. B., work, in charge of.......... 29,30

Frying Pan River at - 

Basalt, Colo.:

description........................ 133-134

discharge............................ 134
INDEX. 201

Frying Pan River at Page. 

Basalt, Colo. Continued.

discharge, monthly.................. 135

gage heights......................... 134

rating table......................... 135

Gage heights, nature of..................... 15

Gaging station, description of............... 18

classification of.......................... 22-24

Gila River basin 

description............................ 174-175

gaging stations.......................... 175

stream flow........................... 176-195

work.................................... 29

Gila River near 

Cliff, N.Mex.:

description.......................... 176

discharge............................ 176

gage heights......................... 176

Redrock, N. Mex.:

description........................ 176-177

discharge............................ 177

gage heights......................... 177

Glenwood Springs. Colo.,

Grand River at:

description........................ 101-102

discharge............................ 102

discharge, daily..................... 104

discharge, monthly.................. 104

gage heights....................... 102-103

rating tables........................ 103

view................................ 182

No Name Creek near:

discharge............................ 196

Roaring Fork at:

description.......................... 130

discharge............................ 130

discharge, daily..................... 133

discharge, monthly.................. 133

gage heights......................... 131

rating tables......................... 132

Granby, Colo.,

Fraser River at:

description........................ 113-114

discharge............................ 114

discharge, daily................... 116-117

discharge, monthly.................. 117

gage heights......................... 115

rating tables......................... 116

Grand River near:

description.......................... 89-90

discharge............................ 90

discharge, monthly.................. 91

gage heights......................... 90

rating table......................... 90

Willow Creek near:

discharge............................ 196

Grand Lake, Colo.,

Grand Lake inlet (east inlet) at:

discharge............................ 196

Grand Lake inlet (north inlet) at:

description.......................... 108

discharge............................ 108

discharge, monthly.................. 110

gage heights......................... 109

rating tables......................... 109

Grand Lake, Colo. Continued. Page

Grand Lake outlet at:

description.......................... 110

discharge............................ Ill

discharge, monthly.................. 113

gage heights....................... 111-112

rating tables...................... 112-113

Grand River (North Fork) near:

description.......................... 86

discharge............................ 87

discharge, monthly.................. 89

gage heights......................... 87-88

rating tables......................... 88

Grand River at or near 

Dotsero, Colo.:

discharge............................ 196

Glenwood Springs, Colo.:

description........................ 101-102

discharge............................ 102

discharge, daily..................... 104

discharge, monthly.................. 104

gage heights....................... 102-103

rating tables......................... 103

view................................ 182

Granby, Colo.:

description.......................... 89-90

discharge............................ 90

discharge, monthly.................. 91

gage heights......................... 90

rating table......................... 90

Kremmling, Colo.:

description.......................... 95-96

discharge............................ 96

discharge, monthly.................. 98

gage heights......................... 96-97

rating table......................... 97

Palisades, Colo.:

description.......................... 105

discharge............................. 105

discharge, monthly.................. 107

 gage heights.....--.....--.....-..... 106

rating table......................... 107

Sulphur Springs, Colo.:

description.......................... 91-92

discharge............................ 92

discharge, daily..................... 94

discharge, monthly.................. 95

gage heights......................... 92-93

rating tables......................... 93-94

Wolcott, Colo.:

description.......................... 98-99

discharge............................ 99

discharge, monthly................ 100-101

gage heights........................ 99-100

rating table.......................... 100

Grand River basin:

description.......................... 82-85

gaging stations...................... 85-86

miscellaneous measurements....... 196-197

stream flow........................ 86-151

work ................................ 29

Grand River (North Fork) near 

Grand Lake, Colo.:

description.......................... 86

discharge............................ 87

discharge, monthly.................. 89

gage heights......................... 87-88

rating tables........................ 88
202 INDEX.

Page.

Granite Reef dam, Ariz., view of............ 182

Green River at 

Greenriver, Utah:

description.......................... 36

discharge............................ 37

discharge, monthly.................. 39

gage heights......................... 37-38

rating tables......................... 38

Green River basin:

description.......................... 31-33

miscellaneous measurements......... 195

stream flow.................... 36-39,54-82

Grubb ditch at 

Sewell.Colo.:

discharge............................ 197

Gunnison River at 

River Portal, Colo.:

description.......................... 139

discharge............................ 140

discharge, monthly.................. 142

gage heights....................... 140-141

rating table.......................... 141

view................................. 138

Gunnison River basin:

description........................ 130-139

stream flow........................ 139-151

work................................ 29

Gunnison River canyon, Colo., falls in, view

of................................ 138

Gypsum, Colo., 

Eagle River at:

description........................ 125-126

discharge............................ 126

discharge, monthly.................. 128

gage heights....................... 126-127

rating table.......................... 127

Gypsum Creek at:

discharge............................ 196

H.

Hardyville, Ariz., 

Colorado River at:

description.......................... 39

discharge............................ 40

discharge, daily...................... 41

discharge, monthly.................. 41

gage heights......................... 40

Helper, Utah,

Price River near:

description.......................... 79-80

discharge............................ 80

discharge, monthly.................. 82

gage heights......................... 80-81

rating tables......................... 81-82

Henshaw, F. F., work of.................... 30

Holbrook, Ariz.,

Little Colorado River at:

description.......................... 167

discharge............................ 107

discharge, daily...................... 169

discharge, monthly.. .............. 109

eights......................... 108

I.

Ice, measurements under...... ............. 21,26

Imperial Valley, flood in..................... 50

Page.

Investigations, authority for................. 7

purposes of.............................. 9-10

scope of.................................. 8

Irrigation, stream flow and.................. 9

K. 

Kremmling, Colo.,

Blue River near:

description........................ 121-122

discharge............................ 122

discharge, monthly.................. 124

gage heights....................... 122-123

rating tables......................... 123

Grand River near:

description.......................... 95-96

discharge............................ 96

discharge, monthly.................. 98

gage heights......................... 96-97

rating table.......................... 97

L.

Laguna dam, Ariz., view of................ 42

Lake Fork near 

My ton, Utah:

description.......................... 67-68

discharge............................ 68

discharge, monthly.................. 71

gage heights......................... 69

rating tables......................... 70

Whiterocks, Utah (below forks):

description.......................... 63-64

discharge............................ 64

discharge, daily...................... 66

discharge, monthly.................. 67

gage heights......................... 65

rating table.......................... 66

Lake Fork (East and West forks) near 

Whiterocks, Utah:

discharge............................ 195

La Plata River at 

La Plata, N. Mex.:

description.......................... 161

discharge............................ 161

gage heights......................... 162

Little Colorado River at 

Holbrook, Ariz.:

description.......................... 167

discharge............................ 167

discharge, daily..................... 169

discharge, monthly.................. 169

gage heights......................... 168

St. Johns, Ariz.:

description.......................... 163

discharge-........................... 163

discharge, daily..................... 165

discharge, monthly.................. 165

gage heights......................... 164

Woodruff, Ariz.:

description.......................... 165

discharge............................ 165

discharge, daily..................... 167

discharge, monthly.................. 167

gage heights......................... 166

Little Colorado River basin:

description.......................... 163

stream flow....................... 163-173

work................................ 30
INDEX. 203

M. Page.

McDowell, Ariz., 

Salt River at:

description. . ...................... 186-187

discharge. ......................... 187-188

discharge, daily. . ................. 189-190

discharge, monthly. ............... 190-191

gage heights ....................... 188-189

Verde River at:

description .......................... 191

discharge. .......................... 191-192

discharge, daily ..................... 194

discharge, monthly. ................. 195

gage heights ......................... 193

McQueary Creek:

discharge ............................ 196

Manning ditch near 

Tucson, Am.:

discharge. ........................... 182

gage heights ......................... 182

Marble, Colo., 

Yale Creek at:

discharge. ........................... 196

Mathers, J. G., work of. ..................... 30

Means, II. C., work of ....................... 29

Meeker, R. I., work of. ...................... 29

Miller, C. D., work of.. ...................... 29

Miner's inch, definition of ................... 13

Miscellaneous measurements in:

Grand River basin ................ 196-197

Green River basin. .................. 195

Virgin River basin... ............... 197

Moapa, Nev.,

Muddy River near:

discharge ............................ 197

Montrose, Colo.,

Uncompahgre River at:

description ........................ 145-146

discharge ............................ 146

discharge, monthly. ................. 148

gage heights ......................... 147

rating tables. ........................ 148

Muddy River near 

Moapa, Nev.:

discharge ............................ 197

My ton, Utah,

Duchesne River at:

description .......................... 56-57

discharge. ........................... 57

discharge, daily. .................... 60

discharge, monthly. . ................ 61

gage heights ......................... 58-59

rating table ......................... 59-CO

Lake Fork near:

description .......................... 67-68

discharge. ........................... 68

discharge, monthly. ................. 71

gage heights ......................... 69

rating table ......................... 70

N

Navigation, stream flow and ................ 9

Nettle Creek at 

Sewell, near Carbondale, Colo.:

discharge. ........................... 197

New Liverpool Salt Co. , cooperation of ....... 29, 51

Page. 

New Mexico, cooperation of.................. 28

New River, view on......................... 50

New River near 

Brawley, Cal.:

discharge............................ 52

Nile, comparison of, with Colorado River.... 33-34

Nogales, Ariz.,

Santa Cruz River near:

description.......................... 180

discharge............................ 180

gage heights......................... 181

No Name Creek nearGlen wood Springs, Colo.:

discharge............................ 196

Office practice, methods of................... 21-26

Ouray, Colo.,

Uncompahgre River near:

description.......................... 142

discharge, daily...................... 142

discharge, monthly.................. 143

P.

Padgett, H. D., work of................... 30

Palisades, Colo., 

Grand River at:

description.......................... 105

discharge............................ 105

discharge, monthly.................. 107

gage heights......................... 106

rating table.......................... 107

Piney River near 

Radium, Colo.:

discharge............................ 196

Pioneer ditch at 

Sewell, Colo.:

discharge............................ 197

Price, I. I., work of.......................... 29

Price River near 

Helper, Utah:

description.......................... 79-80

discharge............................ 80

discharge, monthly.................. 82

gage heights......................... 80-81

rating tables......................... 81-82

Publications, lists of......................... 10-13

R. 

Radium, Colo.,

Piney River near:

discharge............................ 196

Rating curves, construction and use of....... 22

Rating tables, construction of................ 22

nature of................................ 16

Reclamation Service, cooperation of...... 28-29,30

Redrock, N. Mex., 

Gila River near:

description........................ 176-177

discharge............................ 177

gage heights......................... 177

Revision, need for........................... 27-28

Rice, R. C., work of......................... 30
204 INDEX.

River Portal, Colo., Page. 

Gunnison River at:

description.......................... 139

discharge............................ 140

discharge, monthly.................. 142

gage heights....................... 140-141

rating table.......................... 141

view................................. 138

Roaring Fork, Colo., falls on, view of........ 128

Roaring Fork at or nearBasalt, Colo.:

discharge............................ 196

Emma, Colo.:

description........................ 128-129

discharge............................ 123

discharge, monthly.................. 129

gage heights......................... 129

rating table.......................... 129

Glen wood Springs, Colo.:

description.......................... 130

discharge............................ 130

discharge, daily ..................... 133

discharge, monthly.. ............... 133

gage heights......................... 131

rating tables......................... 132

Roaring Fork basin:

description.......................... 128

miscellaneous measurements........ 196

stream flow....................... 128-136

Rock Creek near 

Stillwater Lake, Utah:

discharge............................ 195

Roosevelt, Ariz., 

Salt River at:

description.......................... 183

discharge.......................... 184-185

discharge, daily..................... 186

discharge, monthly.................. 186

gage heights... ..................... 185

Roosevelt dam, flood on, view of............ 180

power from, transmission of, view of..... 180

Run-off, computation of..................... 21-26

definition of............................. 13

S. 

St. Johns, Ariz.,

Little Colorado River at:

description.......................... 163

discharge............................ 163

discharge, daily..................... 165

discharge, monthly........... ...... 165

gage heights......................... 164

Salton Sea near 

Salton, Cal.:

description.......................... 46-51

discharge............................ 52

gage heights......................... 53

inflow............................... 51-52

rise, monthly....................... 54

view................................ 50

Salt River at 

Granite Reef dam, Ariz.:

view................................ 182

McDowell, Ariz.:

description ........................ 186-187

discharge.......................... 187-188

Salt River at Page. 

McDowell, Ariz. Continued.

discharge, daily................... 189-190

discharge, monthly................ 190-191

gage heights....................... 188-189

Roosevelt, Ariz.:

description.......................... 183

discharge.......................... 184-185

discharge, daily..................... 186

discharge, monthly.................. 186

flood, view.......................... 180

gage heights......................... 185

Salt River basin:

description.......................... 183

stream flow....................... 183-195

Salt River project, Ariz., views at......... 180,182

San Francisco River at 

Alma, N. Mex.:

description........................ 177-178

discharge............................ 178

discharge, daily..................... 179

discharge, monthly.................. 180

gage heights......................... 179

San Juan River at 

Blanco, Colo.:

description.......................... 157

discharge............................ 157

gage heights......................... 157

Turley, N. Mex.:

description........................ 154-155

discharge............................ 155

discharge, monthly.................. 157

gage heights....................... 155-156

rating table......................... 156

San Juan River basin:

description........................ 152-153

gaging stations ...................... 154

stream flow....................... 154-162

work................................ 29

Santa Cruz River at or near 

Nogales, Ariz.:

description.......................... 180

discharge............................ 180

gage heights......................... 181

Tucson, Ariz.:

description.......................... 181

discharge............................ 182

gage heights......................... 182

Second-feet per square mile, definition of.... 13

Second-foot, definition of.................... 13

Section, changes in, estimation for........... 23-25

Sewell, Colo., 

ditches at:

discharge............................ 197

Nettle Creek at:

discharge........................... 197

Thompson Creek at:

discharge............................ 197

Silver Creek at 

Snowflake, Ariz.:

description ......................... 169

discharge............................ 169

gage heights......................... 170

Slope method, description of................. 16

Snake Creek near 

Dillon, Colo.:

discharge............................ 196
INDEX. 205

Snowflake, Ariz., Page. 

Silver Creek at:

description.......................... 169

discharge............................ 169

gage heights......................... 170

Sopris Creek at 

Emma, Colo.:

discharge............................ 196

Southern Pacific Co., cooperation of......... 29

Steelman Creek:

discharge............................ 196

Stevens, G. C., work of...................... 30

Stewart, J.B., work of. .................... 29

Stillwater Lake, Utah, 

Rock Creek near:

discharge............................ 195

Straight Creek near 

Dillon, Colo.:

discharge............................ 196

Strawberry River at 

(in) Strawberry Valley, Utah:

description.......................... 61

discharge............................ 62

Theodore, Utah:

description.......................... 62

discharge............................ 62

discharge, monthly.................. 63

gage heights......................... 63

rating table.......................... 63

Stream measurements, accuracy of........... 26-27

data of, use of........................... 27-28

methods of.............................. 16-21

Sullivan,V.L., work of...................... 29

Sulphur Springs, Colo., 

Grand River at:

description.......................... 91-92

discharge............................ 92

discharge, daily..................... 94

discharge, monthly.................. 95

gage heights......................... 92-93

rating tables......................... 93-94

Williams Fork near:

description........................ 117-118

discharge............................ 118

discharge, monthly.................. 121

gage heights......................... 119

rating tables........................ 120

Swamps, drainage of, stream flow and ....... 9-10

Sweet ditch at 

Sewell, Colo.:

discharge............................ 197

T.

Tables, explanation of....................... 15-16

Terms, definition of......................... 13

Theodore, Utah,

Strawberry River at:

description.......................... 62

discharge............................ 62

discharge, monthly.................. 63

gage heights......................... 63

rating table.......................... 63

Thompson Creek and ditch at 

Sewell, near Carbondale, Colo.:

discharge............................ 197

Torrence Falls, Colo., view of................ 138

Tucson, Ariz.,

Farmers' ditch near:

discharge............................ 182

gage heights ........................ 182

Manning ditch near:

discharge............................ 182

gage heights......................... 182

Santa Cruz River at:

description.......................... 181

discharge............................ 182

gage heights......................... 182

Turley, N. Mex.,

San Juan River at:

description........................ 154-155

discharge............................ 155

discharge, monthly.................. 157

gage heights....................... 155-156

rating table......................... 156

Uinta Irrigation Survey, cooperation of...... 28

Uinta River at or near 

Fort Duchesne, Utah:

description.......................... 73

discharge............................ 74

discharge, monthly.................. 77

gage heights......................... 75

rating tables........................ 76

Whiterocks, Utah:

description.......................... 71-72

discharge-........................... 72

discharge, monthly.................. 73

Uncompahgre project, Colo., view at........ 138

Uncompahgre River at or nearDelta, Colo.:

description.......................... 149

discharge............................ 149

discharge, monthly.................. 151

gage heights......................... 150

rating tables........................ 151

Fort Crawford, Colo.:

description.......................... 143

discharge............................ 144

discharge, daily..................... 145

discharge, monthly.................. 145

gage heights......................... 144

rating table......................... 145

Montrose, Colo.:

description........................ 145-140

discharge............................ 146

discharge, monthly.................. 148

gage heights......................... 147

rating tables........................ 148

Ouray, Colo.:

description.......................... 142

discharge, daily..................... 142

discharge, monthly.................. 143

Utah, cooperation of........................ 28

V.

Velocity method, description of............. 17-21

Verde River at 

McDowell, Ariz.:

description.......................... 191

discharge.......................... 191-192

discharge, daily..................... 194
206 INDEX.

Verde River at Page. 

McDowell, Ariz. Continued.

discharge, monthly.................. 195

gage heights......................... 193

Virgin River basin:

miscellaneous measurements............ 197

Walters, M. I., work of..................... 30

Water power, stream flow and.............. 9

Water supply, stream flow and.............. 9

Weir method, description of................. 16-17

Whiterocks, Utah,

Lake Fork near (below forks):

description.......................... 63-64

discharge............................ 64

discharge, daily..................... 66

discharge, monthly.................. 67

gage heights......................... 65

rating tables........................ 66

Lake Fork (East and West forks) near:

discharge............................ 195

Uinta River near:

description.......................... 71-72

discharge............................ 72

discharge, monthly.................. 73

Whiterocks River near:

description.......................... 77-78

discharge............................ 78

discharge, monthly.................. 79

view................................ 42

Williams Fork near 

(above and below) South Fork, Colorado:

discharge............................ 196

Sulphur Springs, Colo.:

description........................ 117-118

discharge............................ 118

discharge, monthly.................. 121

ge.f e heights......................... 119

rating tables......................... 120

Williams Fork (South Fork):

discharge............................ 196

Willow Creek near Page. 

Granby,Colo.:

discharge............................ 196

Winslow, Ariz.,

Chevelon Fork near:

description.......................... 171

discharge............................ 171

gage heights....................... 171-172

Clear Creek near:

description.......................... 172

discharge............................ 172

gage heights......................... 173

Wolcott, Colo.,

Grand River near:

description.......................... 98-99

discharge............................ 99

discharge, monthly................ 100-101

gage heights........................ 99-100

rating table.......................... 100

Wood, Mrs. B. D., work of.................. 30

Woodruff, Ariz.,

Little Colorado River at:

description.......................... 165

discharge............................ 165

discharge, daily..................... 167

discharge, monthly.................. 167

gage heights......................... 166

Work, division of ........................... 29-30

Y.

Yule Creek at 

Marble, Colo.:

discharge............................ 196

Yuma, Ariz.,

Colorado River at:

description.......................... 41-42

discharge............................ 42-43

discharge, daily..................... 45

discharge, monthly.................. 46

gage heights......................... 44

Yuma project, view on...................... 42

o