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• ~~~93 ~:~ Torriorthents, warm - Rock outcrop complex, 35 to 90 <br />-y percent slopes <br />Setting <br />Landform: canyon, mesa, mountain, and ridge slopes <br />Elevation: 6,000 to 6,400 feet <br />Mean annual air temperature: 49 to 50 degrees F <br />Mean annual precipitation: 12 to 13 inches <br />Frost-free period: 110 to 120 days <br />Characteristics of tha Torriorthents, warm Soil <br />Parent material: residuum and colluvium from shale, sandstone, <br />limestone or siltstone with basalt overburden in some areas <br />Dominant native plants: shrubs and grasses with scattered pinyon <br />and juniper <br />Typical Profile <br />0 to 2 inches - brownish gray channery loam <br />0 to 13 inches - brownish gray very channery loam <br />13 inches - hard sandstone bedrock <br />Depth class: shallow to very deep <br />Drainage class: well drained <br />Permeability: slow <br />• Available water capacity: low to high <br />Potential rooting depth: 10 to 60 or more inches <br />Surface runoff: very rapid <br />Hazard of water erosion: moderate to high <br />Shrink-swell potential: moderate <br />Mass movement potential: moderate to high <br />Characteristics of the Rock outcrop <br />Rock outcrop consists of large exposures of sandstone, shale, <br />limestone or siltstone parallel to the surface and as <br />cliffs, breaks, or escarpments. <br />Composition <br />Torriorthents, warm soil and similar soils: 50 percent <br />Rock outcrop: 40 percent <br />Contrasting inclusions: 10 percent <br />contrasting inclusions <br />Five percent Clapper soils on the lower part of the side slopes <br />Five percent Sunup soils on the steeper slopes <br />• <br />