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<br />X E6 - C ~ s~a3 <br />82-Zyme-Rock outcrop complex, 12 to 65 percent elopes. Th s <br />complex consists of a shallow, well drained soil on moderately s eep to <br />steep hills and ridges, and Rock outcrops (Fig. 17). Elevation s 6,000 to <br />7,000 feet. The average annual precipitation is 14 to 18 inches. The <br />average annual air temperature is about 47 to 50 degrees F., and the average <br />frost-free season is 110 to 130 days. <br />The Zyme soil makes up approximately 50 percent of this uni and the <br />Rock outcrop makes up approximately 30 percent of the unit. The Zyme soil <br />formed in residual material from shale. <br />Included in this unit is about 15 percent Bodot clay, 5 per ent Arboles <br />silty clay loam and small areas of Dulce sandy loam and Travessi la sandy <br />loam and soils that are lighter in texture than typical of the Z e series. <br />Typically, the surface layer of the Zyme soil is grayish br wn clay <br />loam about 4 inches thick. The underlying material is grayish b own heavy <br />clay loam that overlies soft shale at a depth of 10 inches. Dep h to <br />bedrock ranges from 6 to 20 inches. <br />Permeability is slow. Effective rooting depth is 6 to 20 1 ches due to <br />soft bedrock. Available water capacity is low. Surface runoff s rapid and <br />the hazard of water erosion is high. <br />Rock outcrop consists of bare exposures of sandstone and sh~le. <br />This soil is used primarily for livestock grazing and wildl fe <br />habitat. <br />Fig. 17 -- Landscape of Zyme-Rock outcrop complex, 12 to 65 pert nt slopes. <br />The Zyme soil produces stands of pinyon and juniper trees, shrub and <br />grasses. Rock outcrop is essentially bare of vegetation. <br />