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<br />The following tabulation shows the major land use requirements for
<br />the period of study:'
<br />
<br />
<br /> Requirements - 1,000 Acres
<br />Use 1965 19(10 2000 2020
<br />Cropland 1,816 1,891 1,905 1,852
<br />Irrigated (1,785) (1,863) (1,882) (1,833)
<br />Nonirrigated (31) (28) (23) (19)
<br />Livestock Grazing 76,054 73,739 69,902 65,807
<br />Timber P.l;'oduction 5,458 5,358 5,153 5,044
<br />Urban and Industrial 513 863 1,230 1,564
<br />Outdoor ~ecreation (designated) 11 5,542 5,888 6,012 6,146
<br />Wilderness Areas 861 1,458 3,158 3,458
<br />Fish and Wildlife (designated) 11 3,223 3,546 7,175 15,020
<br />Mill tary , 4,126 4,126 4,126. 4,1.26
<br />Transport~tion and Utilities 660 858 1,030 1,145
<br />Water Yield J:n\provement ll4 289 824 1,229
<br />Flood Control 77 229 289 336
<br />Mineral Production 76 ll5 156 223
<br />
<br />11 Desigrlated:. Lands which are administered primarily for the purpose
<br />but not precluding other activities which are compatible.
<br />
<br />Land Treatment. and Management
<br />
<br />Irreversible losses of the Region's land resources must be minimized
<br />to preserve a f'reedom of choice for future resource users. Esthetic and
<br />environmental. factors were of primary consideration in development of the
<br />program. Ideally, the land treatment and management program should har-
<br />monize with all water and related land resource development programs
<br />required to, satisf'y present and projected demands within the Region. On
<br />an equivalent acreage basis, as of 1965, a total of nearly 7 million acres
<br />of cropland" forest land, rangeland, and urban and other la.nds had received
<br />adequate treatment. The program includes treatment of an additional 64
<br />million acreS by 2020. In most cases, the same acre will require treat-
<br />ment more than once during the study period because of development of
<br />improved methods, or the limited life of the measure or practice installed.
<br />
<br />Flood Control
<br />
<br />The Region is subject to severe and sudden floods, with some flood
<br />damage occurring every year. Almost all land suitable for general devel-
<br />opment is subject to some degree of flood damage, either from a defined
<br />stream or overland flow. The average annual flood damages were estimated
<br />at $41 million for 1965 economic and project conditions. With no addi-
<br />tional flood. control measures after 1965, annual flood damages of $310
<br />million are estimated by the year 2020. Implementa.tion of the flood
<br />
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