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i <br />' KC--Rim-Cascajo complex, 2 to 15 percent slopes. Tnis map unit is <br />' on terrace breaks. The native vegetation is mainly grasses. Elevation is <br />5,000 to 6,000 feet. The average annual precipitation is 10 to 13 inches, <br />the average annual air temperature is 49 to 53 degrees F, and the average <br />frost-free period is 125 to 165 days. <br />This unit is about 50 percent Kim soil and about 35 percent Cascajo <br />soil. The Kim soil is on foot slopes and in drainageways, and the Cascajo <br />soil is an short, steeper breaks. <br />' Included in this unit is about 5 percent shallow, clayey Midway very <br />gravelly clay barn on breaks. Also included is about 10 percent shallow <br />Shingle very stony fine sandy loam on breaks. <br />In the east one-half of Sec. 30, T. 18 S., R. 69 W. This unit includes <br />small areas of soil with a high content of gypsun crystals below depths of <br />' 12 to 24 inches. Tnis soil is similar to Kim soil, but the surface of the <br />soil is covered with rock fragments. Depth Co weathered, gypsiferous shales <br />' is 35 to 60 inches. Many of these gravelly or stony areas are covered by <br />pinyon and juniper. <br />The Kim soil is deep and well drained. It formed in calcareous <br />t alluviun. Slope is 2 to 10 percent. Typically, the surface layer is pale <br />' brown loam about 4 inches thick. The substratrao to a depth of 60 inches or <br />more is loam. Tne soil is moderately alkaline. <br />Permeability of the Kim soil is moderate. Available water capacity is <br />high. Effective rooting depth is 60 inches or more. Runoff is slag to <br />rapid, and the hazard of water erosion is slight to high. <br />1 <br /> <br /> <br />