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The surface layer is a weak fine granular loam to 16 inches. Underlying this <br />• is a massive, usually wet light clay loam to 36 inches. This is over a C2 horizon <br />of saturated stratified loam to clay containing coarse fragments. <br />This unit may contain 25% of the 27B soil. <br />Permeability is moderate. Available water capacity is moderate. Effective <br />rooting depth may be 60 inches or more. Surface runoff is slow and erosion <br />hazard is slight. <br />27B -Unnamed loam, 6 to 10 percent slopes. <br />This is a deep, well-drained soil of alluvial origin which occurs in the drainages <br />other than the parts of the Grassy Creek floodplain mapped 27A. It is differen- <br />tiated from the 27A by being slightly steeper, drier, and well-drained. <br />• This soil occurs primarily uncer sagebrush. The A horizon is a weak fine granular, <br />non-sticky, non-plastic, noncalcareous loam 15 inches deep. The underlying <br />C horizon is a weak moderate subangular blocky loam to sandy clay loam to <br />60 inches or more. Buried Al horizons may be seen in some areas. <br />This soil is a good source of topsoil to 48 inches. <br />34E - Coutis fine sandy loam, 12 to 25 percent slopes. <br />34F - Coutis fine sandy loam, 25 to 65 percent slopes. <br />This is a deep, somewhat excessively drained soil on strongly sloping to moderately <br />steep mountain sideslopes at elevations of 6,900 to 8,400 feet. It formed in <br />residuum weathered from sandstone. Included in this unit are areas of Winevada <br />fine sandy loam and Skylick loam. <br />II.I-13 <br />