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-10- II.,....J:!YDROLOG I C_ REi=.,ORDS_ A, R'2cord Densitv and Oroqraphic Character' _~__Y'__~~~._______ ____.____.___~~__~_____ Hydrologic records (from precipitation and streamflow gages) in the mJuntainous areas of Colorado are relatively good and the stations are of moderate density as seen in F~igllre V-I. However, dlle to the extreme orographic effects of the mountain barriers, the micro climate changes S0 rapidly with elevation and from range to range that these records are m1ny times ioadequate for technical purposes. B--,-__1;\"J?.E'. s 0 f Re c 0 r<j_s._a_n.c.I.l',,~:.c)_j~~~Ln~U\ g~r1.ci~s_ Rainfall precipitation records are available from the National (,"ather Service (NWS) at Dillon, Eagle, Climax and Bond. Short-term r,?cords have been kept by a CSU Iltrlospheric Science Department research group administered by Lewis O. Grant. Measurements were taken by the r~search group at sites between Leadville and Minturn and at Vail Pass, f'Jur miles west of Vail Pass and tl'iO miles northwest of Climax. Snow precipitation records are taken at Shrine Pass and at Vail Pass by the S,C.S" in addit'ion to the Forest Se;"vice and Vai'! Associates data at the Vail Ski Area site. Sho]^t-.rerm "nowfal1 n~cords Ivere also kept along the highway by Lewis O. Grant's research group. Snowfall records hlVe been of generally better qual'j ty, py'obaoly because of the relative else of measurement and the interest in basin water yield. Streamflow r2cords are kept by the U.S. GeoloCjical Survey (U.S.G.S.) for sevey'al of tle streams within the Gore Creek catchmE'nt i)S I-Iell as in nearby basins. Tlese records are very gDod. P,ddiUonally, some 12xCE)11ent, but shDrt-term ddta is available from a study for the Bureau of Reclamation on the meteor- ology of the Colorado River basin. This study provides data on both storm claracteristics and rainfall losses (infiltration, detention and evaporation).