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83 -Work loam, <br />83 -Work loam, 12 to 25 percent slopes <br />SETTING <br />Landforms: uplands and fans <br />Elevation: 6,500 to 8,500 feet <br />Mean annual air temperature: 44 degrees F <br />Mean annual precipitation: 17 inches <br />Frost-free period: 90 days <br />CHARACTERISTICS OF THE WORK SOIL <br />Parent material; sandstone, eolian materials <br />Dominant native plants: wheatgrasses, bluegrasses, bromes, big sagebrush, Gambel oak, <br />serviceberry <br />Typical Profile <br />0 to 6 inches -dark brown foam <br />6 to 13 inches -dark brown clay loam <br />13 to 28 inches -brown clay <br />28 to 34 inches -brown clay <br />34 to 39 inches -light brown clay loam <br />39 to 60 inches -very pale brown channery loam <br />Depth class: deep <br />Drainage class: well drained <br />Permeability: moderately slow <br />Available water capacity: high <br />Potential rooting depth: 60 inches or more <br />Surface runoff: moderate <br />Hazard of water erosion: moderate to high <br />Shrink-swell potential: high <br />Mass movement potential: moderate to high <br />COMPOSITION <br />Work soil and similar soils: 90 percent <br />Contrasting inclusions: 10 percent <br />CONTRASTING INCLUSIONS <br />Five percent Beenom soils on the uplands and mountain side slopes. <br />Five percent Absarokee soils on mountain side slopes. <br />MAJOR USES <br />Livestock grazing, wildlife, recreation <br />• <br />• <br />• <br />Soils Description Report -West Elk Mine <br />December 7994 WESTEC 22 <br />