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Estimate of stream flow and water power in the United States-Continued.

V. MISSISSIPPI RIVER (TRIBUTARIES FROM THE EAST).

Illinois.
Rock.

Wisconsin.

3468 Chippewa..

VI. MISSISSIPPI RIVER (TRIBUTARIES FROM THE WEST).

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Minor western tributaries lower Missis- Minnesota, Iowa, Missouri. sippi (below Missouri River).

a Includes all drainage from the Mississippi to Vermillion River, inclusive. b Horsepower at Louisville, Ky.

148,000

126,000

c Includes flow but exclusive of power in Canada.

3,948, 970 7,085,000

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d Mean annual discharge 1879-1890, inclusive, from Annual Report Chief of Engineers, 1891, p. 3826.

Estimate of stream flow and water power in the United States-Continued.

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a Values of drainage areas and discharge of the Great Lakes drainages derived chiefly from report of E. S. Wheeler, assistant engineer, U. S. Army. The discharge value is given for each of the Great Lakes as a unit from 1860 to 1892, and includes the run-off from both land and water surfaces. It shows the total discharge from both United States and Canadian territory.

b Includes Lake St. Clair.

€3,500,000 horsepower at Niagara Falls on the basis of mean annual discharge.

d Includes Oswegatchie River and minor St. Lawrence tributaries above Ögdensburg, N. Y.

• Total horsepower of Niagara River and of tributaries to the Great Lakes in United States.

f Southern Pacific included between Mexican line and Point Bonita, Cal.

9 Exclusive of Tulare Lake drainage (see Sierra Nevada drainage).

▲ Includes Tulare Lake drainage.

i Northern Pacific included between Point Bonita, Cal., and Canadian line. Includes drainage area and flow in Canada, but does not inelude power. * Does not include Tulare Lake drainage (see San Joaquin River).

44,300

25, 200

7,620 2,420

0.172 .096

2.33 1.30

92,000 20,000

149,000 30,000

h 55, 900 97,600

h 18,900

h.338

1 4. 58

10, 100

1.03

1.40

* 396,000 10,000

* 607,000

15,000

223,000

518,000

801,000

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Estimate of stream flow and water power in the United States-Continued.

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a Includes drainage area and flow of Pembina and Mouse rivers in Canada, but does not include power.

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Eastern Gulf of Mexico to Mississippi River.

Principal drainages.

Western Gulf of Mexico west of Vermilion River.

Mississippi River (tributaries from east)..

Mississippi River (tributaries from west, including Vermilion River).

St. Lawrence River to Canadian line.

Colorado River above Yuma, Ariz.

Southern Pacific to Point Bonita, Cal.
Northern Pacific.

Great Basin..

Hudson Bay.

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Total..

a Includes Rio Grande in Mexico.

Includes drainage in Canada.

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