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<br /> <br />CR- -Ustic Torriorthents bouldery-Rock Outcrop compler., 35 to 100 <br />• percent slopes (cont.) page 2 <br />The permeability of the Ustic Torriorthents bouldery soil is <br />moderate to rapid. Available water capacity is very low. Effective <br />rooting depth is mainly 3 to 20 inches <br />of erosion of bare soil is very high. <br />Runoff is rapid, and the hazard <br />Rock outcrop occurs mostly as short, vertical rock cliffs, as <br />bouldery projections, and as low, flat exposures. Rock outcrop occurs <br />throughout the side slopes. The .bedrock includes gneiss and granitic <br />rocks .'• <br />This unit is used mainly for noncommercial woodland and wildlife <br />habitat. Very steep slopes, Rock outcrop, and bouldery terrain make <br />most areas inaccessible by livestock. <br />The potential native vegetation is mainly a sparse pinyon and <br />juniper overstory with a sparse understory of Indian ricegrass, <br />Scribner needlegrass and blue grama. Present pinyon and juniper stands <br />vary from no pinyon and juniper to lower site Class III. The average <br />annual production of potential native forage understory in normal years <br />is about 100 pounds per acre. <br />Woodland products such as firewood, fence posts, Christmas trees <br />and pinyon nuts occur on this unit in some areas, but the supply is <br />very limited. In addition, access is severely limited by steep slopes <br />and bouldery, rough terrain. Included in mapping are areas where <br />pinyon and juniper have probably been removed by fire. <br />