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~~ <br />~~ <br />40E _= Agua Fria cobbly loam, 15 to 60 percent slopes <br />~' <br />setting <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 />Xazard of water erosion: very high <br />Shrink-swell potential: high <br />Mass movement potential: moderate on slopes > 30 percent <br />Composition <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 />~, <br />