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<br />;)J154 <br /> <br />IV. Present Development <br /> <br />The Little Snake River basin is one of the drainages in the State of <br /> <br />Wyoming where unuseu and unappropria.ted water is available for development. <br /> <br />Ho~ever, existing users of water must be recognized and provided their rightful <br /> <br />appropriation under the statutes of the State of Wyoming. The existing ap- <br /> <br />propriators include irrigation, municipal, and a small amount of industrial <br /> <br />use. <br /> <br />A. Irrigation <br /> <br />Presently, the major use of water in the Little Snake basin is for <br /> <br />irrigation. The Wyoming Water Development Commission has estimated that 11,156.6 <br /> <br />acres are being irrigated in the Little Snake River basin (1979). Plate 3 is a <br /> <br />map showing the lands that were irrigated in the Little Snake River basin in <br /> <br />1979. Based upon the WWDC mapping, the following breakdown of irrigated lands <br /> <br />by drainage was compiled for the Little Snake River basin in Wyoming: <br /> <br />Stream or Stream Reach <br /> <br />Little Snake River <br /> <br />Three Forks to Slater Creek <br /> <br />Slater Creek to Savery Creek <br /> <br />Savery Creek to State Line <br /> <br />Savery Creek <br /> <br />Muddy Creek <br /> <br />Battle Creek <br /> <br />Miscellaneous Tributaries <br /> <br />Total <br /> <br />Actual Irrigated Acreage <br /> <br />40.0 <br />156.3 <br />6,232.1 <br />2,240.4 <br />717.5 <br />376.7 <br />1,393.6 <br />11,156.6 acres <br /> <br />The U. S. Water and Power Resources Service (formerly Bureau of <br /> <br />Reclamation) has estimated a cropping pattern in the area with the following <br /> <br />distribution: alfalfa, 35%; rotation pasture, 53%; and small grains, J2%. The <br /> <br />WPRS has estimated a weighted consumptive use for these crops of 1.02 AF/acre <br /> <br />IV-l <br />