4001

• UCREFRP Catalog Number: 4001
• Author: U.S. Bureau of Reclamation.
• Title: Colorado River System Consumptive Uses and Losses Report 1976-1980.
• USFW Year: 1981.
• USFW - Doc Type: Washington, D.C.
• Copyright Material: NO

TABLE UC-8
Upper Colorado River Basin
Population Estimates
1876-1880
(1,000's)
Estimated Population
State Tributary 1976 1977 -1978 1979 1980

Arizona San Juan-Colo. 31.8 33.3 34.8 36.4 38.1
Colorado Green River 25.6 27.2 28.9 30.8 32.8
Upper Main Stem 175.2 182.8 190.9 199.4 208.1
San Juan-Colo. 42.5 43.7 45.1 46.7 48.1
Total 243.3 253.7 264.9 276.9 289.0
New Mexico San Juan-Colo. 83.1 86.7 90.3 94.2 98.3
Utah Green River 55.1 58.0 60.8 63.9 67.2
Upper Main Stem 7.7 7.8 8.1 8.3 8.4
San Juan-Colo. 14.7 15.2 15.5 15.9 16.3
Total 77.5 81.0 84.4 88.1 91.9
Wyoming Green River 43.7 47.0 50.8 54.6 58.6
Upper Basin Green River 124.4 132.2 140.5 149.3 158.6
Upper Main Stem 182.9 190.6 199.0 207.7 216.5
San Juan-Colo. 172.1 178.9 185.7 193.2 200.8
Total 479.4 501.7 525.2 550.2 575.9
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