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236 -Shawa -Sandia Family - Kolob Family complex, <br />236 -Shawa -Sandia Family - Kolob Family complex, 5 to 40 percent slopes <br />SETTING • <br />Landforms: benches, mountain side slopes <br />Elevation: 7,200 to 8,600 feet <br />Mean annual air temperature: 40 to 43 degrees F <br />Mean annual precipitation: 16 to 22 inches <br />Frost-free period: 80 to 95 days <br />CHARACTERISTICS OF THE SHAWA SOIL <br />Parent material: residuum and colluvium from interbedded sandstone and shale <br />Dominant native plants: Gambel oak, Utah serviceberry, lupine, Kentucky bluegrass <br />Typical Profile <br />0 to 16 inches -dark grayish brown loam <br />16 to 31 inches -grayish brown loam <br />31 to 60 inches -very pale brown cobbly loam <br />Depth class: very deep <br />Drainage class: well drained <br />Permeability: moderate <br />Available water capacity: moderate <br />Potential rooting depth: 60 or more inches • <br />Surface runoff: medium to very rapid <br />Hazard of water erosion: low to high <br />Shrink-swell potential: low <br />Mass movement potential: low <br />CHARACTERISTICS OF THE SANDIA FAMILY SOIL <br />Parent Material: residuum and colluvium from interbedded sandstone and shale with andesite and <br />rhyolite overburden <br />Dominant native plants: Gambel oak, Utah servicebeny, lupine, Kentucky bluegrass <br />Typical Profile <br />0 to 11 inches -very dark gray loam <br />11 to 18 inches -light brownish gray very cobbly loam <br />18 to 29 inches -light gray very cobbly clay loam <br />29 to 42 inches -variegated very cobbly clay loam <br />42 inches -weathered interbedded sandstone and shale bedrock <br />Depth class: deep <br />Drainage class: well drained <br />Permeability: moderately slow • <br />Available water capacity: moderate <br />Soils Description Report -West Elk Mine <br />December 1994 WESTEC 54 <br />