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2.04.9 <br />70 — Saraton -Agua -Fria complex, 20 to 50 percent slopes. <br />These moderately steep to very steep soils are on side slopes of mesas, <br />benches, and terraces. Elevation ranges from about 5,800 to 7,000 feet. <br />Average annual precipitation is about 14 inches, average annual air <br />temperature is about 47 degrees F, and the average frost -free season is <br />about 115 days. <br />Included with these soils in mapping are a few small areas of Delson, Mesa, <br />Midway, and Gaynor soils. Also included are a few small areas of <br />Torriorthents -Rock outcrop, sandstone, complex; and Torriorthents -Rock <br />outcrop, shale, complex. In some places the surface layer is relatively free of <br />stones. Included areas makeup 20 percent of the map unit. Slips or small <br />landslides are common. <br />The Saraton soil is moderately deep and well drained and overlies cobbly <br />and stony marl at a depth of 20 to 40 inches. It formed in stony and cobbly <br />outwash alluvium derived from basalt. <br />Typically the surface layer of the Saraton soil is brown gravelly loam about 5 <br />inches thick. The underlying material is pinkish white very gravelly loam. <br />Marl is at a depth of about 30 inches. <br />In the Saraton soil, permeability is moderate and available water capacity is <br />low. Effective rooting depth is about 28 inches. Surface runoff is rapid. The <br />hazard of erosion from wind is slight and from water is moderate to high. <br />On the Saraton soil the native vegetation consists mainly on pinyon, juniper, <br />big sagebrush and scattered Gambel oak and serviceberry. Western <br />wheatgrass, Indian ricegrass, need leandthread, and Junegrass are common <br />grasses. <br />The Agua Fria soil is deep and well drained. It formed in cobbly and stony <br />outwash alluvium derived from basalt. <br />PR -14 2.04-106- 03/14 <br />