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Permeability is moderate. The available water capacity is high. <br />Effective rooting depth is 60 inches or more. Surface runoff is <br />medium, and the erosion hazard is medium from wind and water. <br />Most of this mapping unit is native range and used for grazing. <br />Present and potential productivity of this soil is fair. <br />33D-Pinelli Loam, 3 to 15 Percent Slopes <br />This is a deep, well drained soil that occurs at the north edge of <br />the permit area. A portion of the railroad loadout loop was <br />constructed on an area of this soil series. No additional <br />disturbances are anticipated in areas of this soil series; there- <br />fore, no detailed chemical or physical data has been collected. <br />The soil developed in local reworked alluvium and is found on <br />upland benches and in swells. The average annual precipitation <br />ranges from 12 to 15 inches, the average annual soil temperature is <br />42°F to 45°F, and the frost-free season is 75 to 95 days. <br />Included with this soil in mapping are few small areas that are 40 <br />to 60 inches over soft shale and small areas of Forelle and <br />Evanston soils on north slopes or slightly steeper areas. <br />Typically the surface layer is a brown loam about 6 inches thick. <br />The subsoil is a yellowish brown heavy clay loam about 17 inches <br />thick and is calcareous in the lower part. The substratum is a <br />• light yellowish brown clay loam and is calcareous. <br />Permeability is slow. The available water capacity is high. <br />Effective rooting depth is 60 inches or more. Surface runoff is <br />moderate, and the erosion hazard is moderate from wind and water. <br />Most of this mapping unit is cultivated and used for non-irrigated <br />small grains. Some of the area is native range and is used for <br />grazing. Present and potential productivity of this soil is fair. <br />101 - Torriorthents - Rock Outcrop, Complex <br />This strongly sloping to very steep complex is on terrace and <br />escarpment faces and valley sideslopes throughout the permit area. <br />Soils are extremely variable in this series. Much of the area has <br />parent material to the surface and is not useful for reclamation <br />purposes. Useable solids are found in isolated pockets throughout <br />this series. Because of the variability of the soils in this <br />series, no detailed chemical or physical data has been collected. <br />The average annual precipitation ranges from 13 to 16 inches, the <br />average annual soil temperature is 42°F to 47°F, and the frost-free <br />season is 75 to 95 days. The Torriorthents make up about 50 <br />C, <br />I <br />2.04.9-7 <br />