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the 66D map unit consists of 85 percent Foidel with 5 percent Foidel variant, 3 percent <br />Cou[is, 3 percent Routt, 2 percent winevada, and Z percent Cochetopa inclusions (Appendix • <br />9-2, Table 1). A G.5-foot mean salvage depth uas used for Map Unit 66D to calculate <br />recoverable topsoil volumes listed in Table 21-1 and Exhibit 9-t. This topsoil salvage <br />depth figure accounts for inclusions and topsoil loss during salvage due to brush <br />clearing. <br />101-UStic Torriorthents-Rock Outcrop Complex. This map unit i5 located on very steep <br />Yoeslopes, sideslope s, ledges, and ridgetops near escarpments. Ustic Torriorthent soils <br />have thin light-colored stoney or cobbly surface horizons which directly overlie skeletal <br />suhs[ratums. Rock Outcrop areas consist of exposed resistant sandstone or silts[one <br />bedrock in the form of ledges, cliffs, escarpments, and benches. Adjacent soils are <br />non-skeletal with subsoil profile development (Chaperton) or have a dark colored surface <br />horizon, subsurface clay accumulation, and skeletal substratum (Lymanson). <br />The 101 map unit consists of 50 percent Ustic Torriorthents and 40 percent rock outcrop <br />with 5 percent each of Chaperton and Lymanson inclusions (Appendix 9-2, Table t). No <br />suitable topsoil can be salvaged from the rock outcrop portion of this map unit. Six • <br />inches of topsoil will be salvaged from the remainder of this map unit provided the <br />salvaged topsoil is suitable, the rock fragment content is less than 35 percent, and [he <br />equipment can be operated safely. Therefore, a 0.0-foo[ topsoil recovery is utilizetl for <br />[he rock outcrop portion and 0.5-foo[ topsoil recovery is used for the soil portion of Map <br />Unit 101 (Table 21-1 and Exhibit 9-1). The topsoil salvage depth figure accounts for <br />inclusions and topsoil loss during salvage due to brush clearing. <br />103-ROxal Variant (moderately deep)-Lymanson-S[arman Complex. This map unit is located on <br />steep to very steep mountain sideslopes, to eslopes, and ridges. Roxal variant and Starman <br />soils have thin light colored surface horizons which directly overlie skeletal <br />subs[ratums. Lymanson soil profiles have a dark colored surface horizon, subsurface clay <br />accumulation, and skeletal subs[ratums. Adjacent soils have dark colored mollic epipedons <br />ui[h no argillic horizon (Splitro, 4inevada, and Coutis), have a fine particle size <br />control seta ion (Aaberg) or have an argillic horizon (Lithic Cryoboratfs). <br />The 103 map unit consists of 40 percent Rox al variant and 25 percent each of Lymanson and <br />Sta rnian with 3 percent each of Lithic Cryoboralfs and Splitro, 2 percent Aaberg, and 1 • <br />20 Revised 06/24/91 <br />