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2.04.9 <br />13- Beenom - Absarokee association, 20 to 60 percent slopes. <br />These hilly, steep, and very steep soils are on mountain side slopes. <br />Elevation ranges from 6,800 to 8,300 feet. The Beenom soil makes up about <br />50 percent of the association. It is on the upper part of the slope and on <br />ridgetops. The Absarokee soil makes up about 30 percent of the association. <br />It is in a position lower on the slope than the Beenom soil and is also in <br />swales. <br />Included with these soils in mapping are a few small areas of Kech, <br />Progresso, and Work soils. Also included are rock outcrops, very shallow <br />soils, and deep stony soils. Included areas make up 20 percent of the <br />association. In some small areas the surface layer is clay loam or sandy <br />loam. The Beenom soil is shallow and well drained and overlies bedrock at a <br />depth of 10 to 20 inches. It formed in material that was weathered in place <br />from sandstone and interbedded shale. <br />Typically the surface layer of the Beenom soil is grayish brown loam about 4 <br />inches thick. The subsoil is dark brown clay loam about 5 inches thick. The <br />substratum is very pale brown channery loam. Sandstone is at a depth of <br />about 14 inches. <br />In the Beenom soil, permeability is moderate and available water capacity is <br />low. Effective rooting depth is about 14 inches. Surface runoff is rapid. The <br />hazard of erosion from wind is slight and from water is high. <br />On the Beenom soil the native vegetation consists mainly of Gambel oak, <br />serviceberry, big sagebrush, and snowberry. Wheatgrasses, pine <br />needlegrass, and needleandthread are common grasses. <br />The potential plant community on the Beenom soil consists mainly of <br />bluebunch wheatgrass and other wheatgrasses, muttongrass, and <br />Junegrass. As range condition deteriorates, the wheatgrasses, muttongrass, <br />and june grass decrease, forbs and woody shrubs increase, and undesirable <br />weeds and annual plants invade and become more abundant. <br />PR-14 2.04-89- 03/14 <br />