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2.04.9 wheatgrass, Siberian wheatgrass, and crested wheatgrass help to protect the soil from erosion and to provide very limited grazing for livestock. The potential plant community on this soil consists mainly of galleta, shadscale, and Gardner saltbush. As range condition deteriorates, galleta decreases, fortis and woody shrubs increase, and undesirable weeds and annual plants invade and become more abundant. This soil provides habitat for pronghorn antelope, desert cottontail, and mourning dove. Where water is available, water developments and food plots can be used to improve wildlife habitat. Where these soils are used for irrigated crops, a conservation cropping system that includes grain crops improves habitat for ring-necked pheasant. A food supply and nesting cover are important habitat elements required by pheasant. • Map Units 5 & 6 Map units 5 and 6 are the Torriorthents part of the Torriorthents-Rock outcrop, sandstone complex. 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. 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. Field investigation of Map unit 5 shows the soil has virtually no profile. The thickness of the A horizon averaged only 1.5". The soil is shallow with a combined A and B horizon depth that ranges from 6" to 7". Laboratory tests • show this soil is a silt loam and medium brown in color. Based on the soil's PR-06 2.04 -49 - 8/01 A PP~o vEo 1/!5 foZ