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s <br />?" 818 5 <br />?t 70B--Barx fine sandy loam, 1 to 3 percent slopes. This yep, well <br />drained soil is on terraces and mesas. It formed in alluvjium derived <br />s dominantly from sandstone The native vegetation is mainly grasses and <br />shrubs. Elevation is 5,300 to 6,800 feet. The average annual precipitation <br />is 10 to 14 inches, the average annual air temperature is 46 to 48 degrees <br />F, and the average frost-free period is 110 to_130 days. <br />Typically, the surface layer is brown or reddish brown fine sandy loam <br />f <br />about 5 inches thick. The subsoil is yellowish red or light reddish brown <br />sandy clay loam 18 inches thick. The upper 15 inches of the substatum is <br />4 <br />pinkish white loam, the next 13 inches is very pale brown loam, and the <br />i <br />lower part to a depth of 74 inches is pink loam. In some areas the surface <br />layer is loam or sandy clay loam. f ?l <br />j <br />• Included in this unit is about 10 percent Abra soils and 5 percent <br />Progresso soils. Also included are small areas of Clapper soils and <br />Nyswonger soils occurring in the small intermittent drainages. <br />Permeability of this Barx soil is moderate. Available water capacity is <br />high. Effective rooting depth is 60 inches or more. Runoff is slow, and <br />the hazard of water erasion is slight. <br />Most areas of this unit are used for livestock grazing and wildlife <br />habitat. A few areas are used for irrigated corn for silage, pasture, small <br />grains, alfalfa and grass hay. <br />The potential plant community on this unit is mainly western wheatgrass, <br />sandberg bluegrass, Wyoming big sagebrush, and needleandthrea d. The average <br />annual production of air-dry vegetation is about 850 pounds per acre. <br />- <br />"TVv, s kc? <br />?l Yom, S.,, A eke p Ps s? r mo Y-,P,