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<br />For these currently scheduled River Basin Surveys, hydrologic and <br />water supply studies are being standardized to include the years of <br />1943-60 as a base study period. These years have been selected because <br />of the greater availability of streamflow and other necessary records, <br />and because they include periods of both above and below longtime <br />average stream flows. They are reasonably representative of conditions <br />existing during recent time periods and may be compared with other base <br />periods through applicable statistical or analytical procedures. Where <br />possible, other data within the report have been developed for the same <br />base period; however, there are some instances, such as in recreation, <br />where records are nonexistent or are nonrepresentative of the base <br />period. In these cases, use has been made of existing information <br />regardless of time periods of record availability. <br /> <br />State and Federal agencies in addition to the United States Department <br />of Agriculture and the Colorado Water Conservation Board, have provided <br />data and assistance for this report. Chief contributors are the U. S. <br />Bureau of Reclamation, U. S. Bureau of Land Management, Colorado State <br />Soil Conservation Board, Colorado River Water Conservation District, <br />Upper Colorado River Commission, U. S. Bureau of Census, U. S. Sta- <br />tistical Reporting Service, U. S. Geological Survey, U. S. Weather <br />Bureau, U. S. Federal Water Pollution Control Administration, Colorado <br />Division of Public Works, Colorado Division of Commerce and Development, <br />Colorado Department of Agriculture, the Moffat, Yampa, Douglas Creek, <br />and White River Soil Conservation Districts, and the water user's <br />association and conservancy districts within the area. <br /> <br />GENERAL DESCRIPTION OF THE BASIN <br /> <br />Location and Size <br /> <br />The White River Basin in Colorado is located in west-central Colorado <br />between the Colorado River on the south and the Yampa River on the north. <br />The White River rises in the White River Plateau and flows west to its <br />confluence with the Green River in Utah. The White River Plateau is a <br />high mesa separated from the Continental Divide on the east by the <br />Colorado and Yampa rivers. The Plateau's elevation is generally lO,OOO <br />feet with peaks above 12,000 feet. Most of the south boundary of the <br />Basin is the Book and Roan Cliffs which form the divide between the <br />White and the Colorado rivers. The north boundary is the divide that <br />connects a series of peaks and mountains running from Flat Top Mountain <br />through Pagoda Peak, Sleepy Cat Peak, Uranium Peak, Magnetic Mountain, <br />Wapiti Peak, Tanks Peak, Blue Mountain and on to the Utah-Colorado State <br />line. The river basin is approximately l07 miles long and averages 35 <br />miles wide, with a total land area of approximately 3,808 square miles. <br /> <br />- 2 - <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br />