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p XTO-E, USTIC TORRIORTHENTS-USTOLL.IC HAPLARGIDS COMPLEX 12-60% SLOPES, CLASS VIIe NONIRRICATED This soil complex is deep, well drained to excessively drained located on moderately steep to steep terrace edges, mesa edges, and hillsides. They formed in gravelly and cobbly alluvium and elevation ranges from 6,000 to 8,500'. The average annual precipitation ranges from 14 to 19", the average annual air temperature is 45-50 degrees F., and the average frost free season is 100 to 130 days. These soils vary considerably but generally, the Ustic Torriorthents surface layers are gravelly or cobbly loam or fine sandy loam. The substratums are very gravelly or cobble outwasti material. Generally, the Ustollic Hap- largids surface layers are gravelly or cobbly loam or fine sandy loam. The subsoils are very cobbly or very gravelly loam, sandy clay loam, or fine sandy loam. The substratums ar•e very gravelly or cobbly outwash material. Permeability of these soils vary depending on the texture of the parent material. Effective rooting depth is 40" or more and availahle water cap- acity is low. Surface runoff is rapid and the water erosion hazard i.s high. This soil type is used primarily for rangeland or wildlife habitat and for construction gravel. Native vegetation consists mainly of western wheatgrass, Indian ricegrass, needleandthread, fie-grams, mutton grass, fendlers threeawn, junegrass, biq sagebrush, rabbitbrush, pinyon pine, Rocky Mountain juniper, ~Fen~erese- -P~o-, Mountain mahogany, serviceberry, ~~°°•.-.~~^;~ and Cambel oak. Wildlife found on this site include mule deer, cottontail rabbit, coyote, squirrels and various bird species. Steep .slopes, gravel and cobble, are the primary limiting soil features when planning for home or• community construction. These soil features affect excavation for foundations, utility lines and roads. Construction of sanitary facilities is Beverly limited and off site disposal systems are more feasible.