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A4A=Ustic Torrifluvents, gravelly substratum, 0 to 3 percent <br /> slopes <br /> Setting <br /> Landscape position: Flood plains and drainageways <br /> Parent material: Kind=alluvium; source=mixed <br /> Native plant community: Big sagebrush and grasses <br /> Elevation: 5,400 to 6, 200 feet <br /> Mean annual temperature: 50 to 52 degrees F <br /> Mean annual precipitation: 10 to 13 inches <br /> Frost-free period: 120 to 135 days <br /> Composition <br /> Ustic Torrifluvents and similar inclusions: 80 percent <br /> Contrasting inclusions: 20 percent <br /> Reference Profile <br /> 0 to 3 inches=pale brown loamy sand <br /> 3 to 11 inches=pale brown fine sandy loam <br /> 11 to 27 inches=pale brown stratified loamy sand to very <br /> gravelly sandy loam <br /> 27 to 60 inches=brown loamy sand to gravelly sandy loam <br /> Soil Properties <br /> Depth class: Very deep <br /> Drainage class: Somewhat excessively drained <br /> Permeability: Moderately rapid <br /> Available water capacity: Low <br /> Potential rooting depth: 60 inches or more <br /> Flooding: Rare <br /> Runoff: Low <br /> Hazard of water erosion: Slight <br /> Hazard of wind erosion: Moderate <br /> Shrink-swell potential: Low <br /> Contrasting Inclusions <br /> Romberg soils on alluvial fans and hills <br /> Gullied land <br /> Similar Inclusions <br /> Mikim soils on alluvial fans <br /> Major Uses <br /> Livestock grazing and wildlife habitat <br />