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4/83 <br />1~qD--Rin loam, 3 to 12 percent slopes. This deep, well drained <br />soil is on eloping uplands. It formed in mixed material. The native <br />vegetation is mainly grass. The average annual precipitation is 13 to 17 <br />inches. <br />Typically, the surface layer is light brownish Rray ca~careous loam <br />about 9 inches thick. The upper 21 inches of the substratum is very pale <br />brown calcareous loam. 'The lower part to a depth of 60 inches is light <br />yellowish brown calcareous sandy clay loam. <br />Included in this unit Are small Aruas of Stoneham loam and Fort <br />Collins loam. Both differ in having a subsoil. <br />Permeability of the Kim soil is moderate. Available water capacity is <br />high. Effective rooting depth is 60 inches or more. Runoff is rapid, and <br />the hazard of water erosion is high. The hazard of soil blowing is high. <br />This unit is used mainly as rangeland. A few acres are in dryland <br />crops.. These areas should be intensively managed to prevent soil erosion. <br />The potential plant community on this unit is blue grams and sideoats <br />grams. Other grasses that characterize this site in smaller amounts are <br />western wheatgrasa, and needleandthread. The average annual production of <br />air-dry vegetation ranges from 750. to 1,200 pound a. <br /> <br />