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/ • <br />L <br />h:~N:Cal rA. <br />I1~'jb J11Y <br />IZD Cabin saner loam~~o 1]'_percent s1oQa <br />This is a deep, xcll drained so 11 on alluvial fans and terraces at eleva- <br />tions of Q, 500 to 10,000 feet. It formed in mixed alluvial materia]s or <br />glacial outxash. The average annual precipitation is stout 1~ inches, <br />average annual air temperature is about 36°F., and the frost-free period <br />is about 60 days. Slopes are 5 to 15 percent. <br />Included in this unit are small areas of Cateviex and_k?ebecicer soils, bati~ <br />having slopes of about 1 to 9 percent. <br />Typically the surface layer is dark grayish brown fine sandy loam, about <br />4 +nrh ^-±+~;^k. The subsoil is dark brown sandy clay loam abou inches <br />thick. The substratum is extremely gravelly loamy sand or extremely cobbly <br />.___-~ <br />loamy sand that extends to 60 inches or more. <br />Permeability is moderate. Effective rooting depth is 20 inches or more. <br />Available water capacity is moderate, surface runoff is rapid and erosion <br />hazard is moderate to severe. <br />This soil is used for native range, wildlife, recreation and for summer <br />home sites. <br />The potential native vegetation on this soil is dominated by Arizona fescue, <br />mountain muhly and Junegrass with smaller amounts of Parry oatgrass, blue <br />grams, and bluegrasses. Hhen the range deteriorates, the proportion of Ariz- <br />ona fescue and mountain muhly decreases; and the proportion of blue grams, <br />i' squirreltail, ring muhly, forbs and xoody shrubs increases. Undesirable <br />shrubs, xeeds, and annual plants invade and become abundant as range con- <br />dition becomes poorer. <br />