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Show PART II PRESENT STATUS OF IRRIGATION Irrigated Lands (1965) The land area of the Upper Colorado Region comprises portions of five Rocky Mountain States, totaling 72,234,000 acres. A total of 1,621,500 acres or about 2 percent of the land area was irrigated in 1965. The ir- rigated lands are shown in Table 1 below and on three subregional maps on the following pages. Table 1 - Irrigated acreage-1965 ___________________________(Unit--1,000 acres)________________________ Irrigated cropland Hydrologic Full Short Subregion supply supply Idle and State land land Total landi/ Total Green River Colorado 69-2 44.9 114.1 3.3 117.4 Utah 162.2 101.9 264.1 19.7 283.8 Wyoming 130.5 151.5 282.0 29.1 3H.1 Subtotal 361.9 298.3 660.2 52.1 712.3 Upper Main Stem Colorado 1+18.1* 157.2 575.6 34.3 6O9.9 Utah 3.5 4.8 8.3 .2 8.5 Subtotal 421.9 162.0 583.9 34.5 618.4 San Juan-Colorado Colorado 107.7 60.6 168.3 18.4 186.7 Utah 16.6 18.6 35-2 5.1 40.3 New Mexico 38.5 6.3 44.8 8.1 52.9 Arizona 1.2 3.5 4.7 6.2 10.9 Subtotal 164.0 89.0 253.0 37.8 290.8 Region Wyoming 130.5 151.5 282.0 29.1 311.1 Utah 182.3 125.3 307.6 25.O 332.6 Colorado 595-3 262.7 858.O 56.0 914.0 Arizona 1.2 3.5 4.7 6.2 10.9 New Mexico 38.5 6.3 44.8 8.1 52.9 To-bal 947.8 549.3 1,497.1 124.4 1,621.5 1/ Idle land is tabulated semratel^ t as it is land which is not irrigated in an average year. As indicated in Table 1, 712,300 acres or 44 percent of the total ir- rigated land is in the Green River Subregion, of which 80 percent is in 8 |
