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SOII.S INFORMATION Soil at the Quagmire Pit is the Rogert very gravelly sandy loam, 15 to 40 percent slopes. This shallow, well-drained soil found is on mountainsides. It formed from in residuum derived dominantly from granite and granodiorite. The native vegetation is mainly grasses with open to moderately dense stands of ponderosa pine. Small azeas with thin stands ofponderosa pine and Gambel oak aze on north and west facing slopes. Elevation is 8,500 to 10,000 feet. The average annual precipitation is 12 to 14 inches, the average annual air temperature is 40 to 44 degrees F, and the average frost-free period is 50 to 80 days. Typically the surface layer is grayish brown very gravelly sandy loam about 5 inches thick. The substratum is extremely gravelly sandy loam about 12 inches thick. Weathered granite bedrock is encountered from surface to 16 inches from surface. The soil is neutral. The texture of the surface layer in some areas is very cobbly sandy loam. Included in this unit is about 5 percent deep Granite very gravelly sandy loam under fir on short north facing side slopes and in drainage ways. Also included is about 5 percent deep Adderton loam in drainage ways and about 10 percent rock outcrop in steeper azeas. Also included under moderately dense to dense stands of ponderosa pine aze about 5 percent soils with alight-colored surface layer. Permeability of the Rogert soil is moderately rapid. Available water capacity is very low. Effective rooting depth is 10 to 20 inches. Runoff is medium to rapid, and the hazard of water erosion is high to very high. The potential plant community is mountain muhly, Arizona fescue, Parry oatgrass, and prairie junegrass with a thin overstory of ponderosa pine. The stand of ponderosa pine is moderately dense to dense on steep, east-facing slopes. The average annual production of air-dry vegetation is about 800 pounds per acre. If the condition of the range deteriorates, needleandthread, blue grams, sedges, fringed sagebrush, and mountain mahogany increase. This unit is used for rangeland and wildlife habitat.