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<br /> 40E _= Aqua Fria cobbly loam, 15 to 60 percent slopes <br /> i <br /> Sett <br />ng <br /> Landforms: alluvial terraces, mesa tops and side slopes, <br />' alluvial fans, hillslopes <br /> Dominant native plants: Wyoming big sagebrush, needleandthread, <br />' western wheatgrass, prairie junegrass <br />Elevation: 6,000 to 7,200 feet <br /> Mean annual air temperature: 45 to 49 degrees F <br /> Mean annual precipitation: 10 to 12 inches <br />' Frost-free period: 110 to 130 days <br /> Soil Characteristics <br />' Parent material: colluvium and alluvium from mixed sedimentary <br /> sources <br />' Typical profile: <br />0 to 6 inches = light brown cobbly loam <br />6 to 24 inches = brown clay <br />24 to 31 inches = light yellowish brown gravelly clay loam <br />31 to 60 inches = light yellowish brown very cobbly clay loam <br /> Depth class: very deep <br />' Drainage class: well drained <br /> Permeability: slow <br /> Available water capacity: moderate <br /> Potential rooting depth: 60 or more inches <br />' Surface runoff: very rapid <br /> Hazard of water erosion: very high <br /> Shrink-swell potential: high <br />' Mass movement potential: moderate on slopes > 30 percent <br /> Composition <br />' <br /> Agua Fria soil and similar soils: 85 percent <br /> Contrasting inclusions: 15 percent <br /> Contrasting Inclusions <br />' Five percent Mesa soils on mesa tops <br />Five percent Hagerman soils <br /> Five percent Haplustolls soils on toeslopes <br />1 <br />' ~ <br />1 <br />