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222 -Wetopa -Wesdy complex <br />222 -Wetopa -Wesdy complex, 5 to 65 percent slopes <br />SETTING • <br />Landforms: mountain side slopes <br />Elevation: 7,800 to 10,400 feet <br />Mean annual air temperature: 34 to 42 degrees F <br />Mean annual precipitation: 24 to 34 inches <br />Frost-free period: 55 to 75 days <br />CHARACTERISTICS OF THE WETOPA SOIL <br />Parent material: residuum and colluvium from interbedded sandstone and shale <br />Dominant native plants: aspen, big bluegrass, nodding bromegrass, Thurber fescue <br />Typical Profile: <br />3 inches to 0 -mat of intermediately decomposed needles, twigs, and leaves <br />0 to 10 inches -dark grayish brown clay loam <br />10 to 18 inches -brown clay loam <br />18 to 34 inches -light reddish brown clay <br />34 to 60 inches -light reddish brown clay loam <br />Depth class: very deep <br />Drainage class: well drained • <br />Permeability: stow <br />Available water capacity: high <br />Potential rooting depth: 20 to 40 inches <br />Surface runoff: medium to very rapid <br />Hazard of water erosion: low to high <br />Shrink-swell potential: high <br />Mass movement potential: low to high <br />CHARACTERISTICS OF THE WESDY SOIL <br />Parent material: residuum and colluvium from interbedded sandstone and shale with basalt <br />overburden <br />Dominant native plants: aspen, nodding bromegrass, Columbia needlegrass, blue wildrye <br />Typical Profile: <br />0 to 7 inches -dark grayish brown cobbly loam <br />7 to 11 inches -dark grayish brown very cobbly silt loam <br />11 to 26 inches -brown very cobbly clay <br />Depth class: very deep <br />Drainage class: well drained <br />Permeability: slow • <br />Available water capacity: moderate <br />Potential rooting depth: 10 to 20 inches <br />Soils Description Report -West Elk Mine <br />December 1994 WESTEC 36 <br />