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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 />V. HYDROLOGY <br />Hydrologic Records <br />Hydrologic records (from precipitation and streamflow gages) in <br />the mountainous areas of Colorado are of relatively. good quality but <br />only short to intermediate recording periods. Due to the extreme <br />orographic effects of the mountain barriers, however, the micro climate <br />changes so rapidly with elevation and from range to range that these <br />records often must be supplemented with detailed analyses. <br />Records and Recording Agencies <br />Rainfall precipitation records are available from the National <br />Weather Service (NWS) for stations at Dillon, Eagle, Climax and Bond. <br />Short-term records have been kept by a CSU Atmospheric Science Depart- <br />ment research group administered by Lewis O. Grant. Measurements have <br />been taken by the research group at sites between Leadville and Minturn <br />and at Vail Pass, four miles west of Vail Pass and two miles northwest <br />of Climax. <br />Snow precipitation records are taken at Shrine Pass and at Vail <br />Pass stations by the S.C.S., in addition to the Forest Service and Vail <br />Associates data at the Vail Ski Area site. Short-term snowfall records <br />were also collected along the highway by Lewis O. Grant's research group. <br />Streamflow records are kept by the U.S. Geological Survey (U.S.G.S.) <br />for several of the streams within the Gore Creek catchment as well as in <br />nearby basins (see Figure V-I, Location Map). Additionally, short-term <br />data is available from a study for the Bureau of Reclamation on the meteor- <br />ology of the Colorado River basin. This study provides data on both storm <br />characteristics and.rainfall losses (infiltration, detention and evapor- <br />ation) . <br />