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<br />. Thb.oii. Inft is rat slte <br />speciflc.Onsite !gallon, <br />testing a.~-d anslysh by competent <br />personnel is needed before construc- 4''j5 <br />~2 lion or other angmeerin yse of soil <br />96--Rogert very gravelly sandy loam, warm, 10 to ~V perce~ft south. <br />slopes. This shallow, well dra~nad soil is on mountainsides and hill;, <br />It formed in residuum derived dominantly from granite and <br />granod~orite. In some areas, such as Hayden @aldy Mountain near <br />Coaldale, ~t formed in residuum from sandstone. The native vegetation <br />is mainly grasses and scrubs. Elevation is 9,000 to 9,500 feet, The <br />average annual precipitation is 16 to 18 inches, the average annual <br />air temperature is 42 to 44 degrees F, and the average frost-free <br />period is 50 to 80 days. <br />Typically, the surface layar.is grayish brown very gravelly sandy <br />,~ <br />loam about 5 inches thick. The substratum is extremely gravelly sandy <br />loam about 12 inches thick. Hard granadiorite is at a depth of 17 <br />inches. The soil is neutral. The texture of the surface layer in <br />some areas is very cobbly sandy loam. Some delineations of this unit <br />in western Fremont County are channery, have a thin clayey subsoil, <br />and are formed in residuum from sandstone. <br />Included in this unit is about 5 percent moderately deep Guffey <br />very gravelly sandy loam on foot slopes. Also included is about 5 <br />percent deep Adderton loam on foot slopes. Included on steeper areas <br />and ridges is about 5 percent Rock outcrop. <br />Permeability of this Rogert soil is moderately rapid. Available <br />water capacity is very low. Effective rooting depth is 10 to 20 <br />inches. Runoff is medium to rapid, and the hazard of water erosion is <br />high to very high. <br />This unit is used far rangeland. <br /> <br />,~ 7 ~7 <br />