2014-10-10_PERMIT FILE - C1996083A (22)

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2.04.9 runoff is medium. The stony surface layer helps to prevent erosion. Some areas are subject to rare flooding. Because of surface stoniness and slope, these soils are unsuited to crops. Seedbed preparation and drilling of seed for pasture plantings on depleted native range or in cleared areas are generally not practical because of surface stoniness. A limited degree of success can be expected by broadcasting seed late in summer or early in fall. Siberian wheatgrass, western wheatgrass, Indian ricegrass, and crested wheatgrass are adapted species. Good pasture management must be practiced to protect these soils from erosion and to provide grazing for livestock. These soils provide habitat for desert cottontail, mourning dove, and chukar. Water developments can be used to improve wildlife habitat. 75 — Torriorthents -Rock outcrop, sandstone complex. This broadly define map unit consists of moderately steep to very steep soils and Rock outcrop on mountain sides and foot slopes. Torriorthents make up about 60 percent of the map unit and sandstone rock outcrops make up about 30 percent. Slopes are 20 to 70 percent. Torriorthents most commonly occur in the less sloping areas and are lower on the foot slopes than the rock outcrops. The sandstone rock outcrops generally are steeper than the Torriorthents. Rock escarpments commonly occur on the upper part of the slopes. Torriorthents are well drained. Depth to bedrock ranges from 10 to more than 60 inches. The deeper Torriorthents are near the bottom of the slope. The surface layer is generally loamy and is very stony, because rocks weathered from escarpments are carried downslope by gravity. The underlying layers are sandy loam or loam and have a high content of rock fragments. Stones that are many feet in diameter are common. Permeability of Torriorthents is moderate to rapid, and available water capacity is moderate to low. Depth to bedrock limits rotting depth, but tree PR-14 2.04-109- 03/14