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250 - Cerri -Herm complex <br />COMPOSITION <br />Cerro soil and similar soils: 45 percent <br />Herm soil and similar soils: 40 percent • <br />Contrasting inclusions: 15 percent <br />CONTRASTING INCLUSIONS <br />Five percent Kolob soils on side slopes <br />Five percent Borpark soils on the steeper slopes <br />five percent soils without mollic surface horizons that have argillic horizons <br />MAJOR USES <br />Wildlife, recreation, livestock grazing <br />MAJOR MANAGEMENT FACTORS <br />Recreation <br />Cerro and Herm <br />Soil-related factors: high shrink-swell potential, slow permeability, clayey surface soil textures, <br />clayey subsurface soil textures, (Cerro - corrosivityl <br />Management considerations: • <br />Reduce the risk of soil erosion and the maintenance costs by stabilizing areas that have been <br />disturbed. <br />Foundations, concrete structures, and paved areas should be designed to offset the effects of <br />shrinking and swelling. <br />Higher construction and maintenance costs should be expected on this unit. <br />Reduce structural damage by designing and building roads to offset the effects of shrinking and <br />swelling. <br />The clayey textures of the soils in this unit requires special precautions for unsurfaced road <br />construction. <br />Recreation <br />rro <br />Soil-related factors: clayey surface soil textures, root limiting layer <br />Dominant vegetation in the potential plant community: western wheatgrass, Letterman's <br />needlegrass, muttongrass, slender wheatgrass <br />Annual production of air-dry vegetation: 2,000 to 3,000 pounds per acre <br />Herm <br />Soil-related factors: clayey surface textures, root limiting layer • <br />Sols Description Report -West Elk Mine <br />Decanter 1994 WESTEC 62 <br />