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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />003024 <br /> <br />acres or 25 percent over the 1937 figure. <br /> <br />The irrigated land located in the valley of the <br /> <br />main Yampa River and its principal tributaries has an ade- <br /> <br /> <br />quate water supply for full crop production. Water shortages <br /> <br /> <br />occur along most of the small tributary streams. <br /> <br /> <br />The present population of the subbasin is about <br /> <br /> <br />12,000. This includes the inhabitants of Steamboat Springs, <br /> <br /> <br />Craig, Hayden and Yampa as well as the rural areas. Records <br /> <br /> <br />show a population decrease of about 1,500 during the 1930- <br /> <br /> <br />1960 period. <br /> <br />- <br /> <br />The following table summarizes the estimated <br />present stream depletion of the Upper Yampa River Subbasin: <br /> <br />Present Stream Depleltion - Units-Acre Feet <br /> <br />':<Annual stream depletion by <br />irrigation <br />Annual stream depletion by <br />municipal, industrial, livestock, etc. <br />Annual stream depletion by <br />water exports <br /> <br />Total annual stream depletion <br /> <br />*Includes allowance for natural vegetation, <br />seeped land and water surfaces without limi- <br />tation to man-made depletion. <br /> <br />63,400 <br />7,000 <br />2.800 <br />73 , 200 <br /> <br />Potential Use <br /> <br />The results of preliminary studies indicate that <br />it would be feasible to provide irrigation water service for <br />an additional 41,720 acres of land. This added to the 70,600 <br />acres of presently irrigated land gives a total of 112,320 <br />acres for the subbasin. Of this about 4,300 acres probably <br /> <br />9 <br />