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<br />General <br />Drainage <br /> <br />Lake Fork <br />of Gunnison <br /> <br />North of <br />Gunnison <br />River <br /> <br />San Juan <br />West of <br />Continental <br />Divide <br /> <br />Other <br />Mountain <br />Locations <br /> <br />basin characteristics of these streams. Peak flows from six of <br />these stations are from U. S. Geological Survey (USGS) Open File <br />Report 84-137 (Reference 2) and were determined using log-Pearson <br />Type III analysis as outlined by the Water Resources Council. Peak <br />flows in cubic feet per second (cfs) for these six stations are <br />listed in Table 2. Peak flows from the remaining nine sites are <br />from recent flood insurance or floodplain reports and may include <br />heavier weighting on precipitation analysis than the USGS flow. <br />Table 3 shows the peak discharges from these streams. <br /> <br />Table I. Characteristics of Regional Drainage Basins <br /> <br />Gage <br />Location <br /> <br />Years <br />of <br />Data <br /> <br />Drainage <br />Area <br />(square miles) <br /> <br />Gage <br />Elevation <br /> <br />Lake Fork at <br />Lake City <br />Lake Fork at <br />Gateview <br />Henson Creek <br />at Lake City <br /> <br />12 <br /> <br />115.0 <br /> <br />8665 <br /> <br />44 <br /> <br />334.0 <br /> <br />7828 <br /> <br />8 <br /> <br />91.0 <br /> <br />Ohio Creek near <br />Baldwin <br />Ohio Creek at <br />Baldwin <br />East River near <br />Crested Butte <br />Crystal River <br />at Placita <br /> <br />25 <br /> <br />121. 0 <br /> <br />8230 <br /> <br />12 <br /> <br />47.2 <br /> <br />8600 <br /> <br />12 <br /> <br />90.3 <br /> <br />8880 <br /> <br />13 <br /> <br />107.0 <br /> <br />Uncompahgre <br />River below <br />Ouray 16 <br />Uncompahgre <br />River near <br />Ridgeway 23 <br />Dallas Creek <br />near Ridgeway 23 <br />Hermosa Creek <br />near Hermosa 48 <br />Animas River <br />at <br />Howardsville 46 <br />Mineral Creek <br />near Silverton 13 <br /> <br />75.4 <br /> <br />7670 <br /> <br />149.0 <br /> <br />6878 <br /> <br />96.2 <br /> <br />6980 <br /> <br />172.0 <br /> <br />6706 <br /> <br />55.9 <br /> <br />9617 <br /> <br />43.9 <br /> <br />9399 <br /> <br />Kannah Creek <br />near <br />Whitewater <br />South Fork of <br />Rio Grande <br /> <br />63 <br /> <br />61.9 <br /> <br />6060 <br /> <br />57 <br /> <br />217.5 <br /> <br />8222 <br /> <br />6 <br /> <br />Basin <br />Slope <br />(ft/ft) <br /> <br />.396 <br /> <br />.390 <br /> <br />.256 <br /> <br />.315 <br /> <br />.422 <br /> <br />.513 <br /> <br />.300 <br /> <br />.238 <br /> <br />.562 <br /> <br />.516 <br /> <br />.569 <br /> <br />.140 <br /> <br />.295 <br /> <br />Mean <br />Annual <br />Precipitation <br />(inches) <br /> <br />30.6 <br /> <br />28.4 <br /> <br />28.4 <br /> <br />31.8 <br /> <br />37.2 <br /> <br />30.1 <br /> <br />27.7 <br /> <br />26.7 <br /> <br />33.4 <br /> <br />29.6 <br /> <br />40.3 <br />