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Permit M-1977-493—Climax Mine Technical Revision 37 (TR-37) <br /> Map Unit: 901 D <br /> Moran family - Rock outcrop -Teewinot family complex, 40 to 150 percent slopes. <br /> Ecological Land Unit: 901 D—grasses, sedges and forbs on alpine, steep to very steep <br /> mountain slopes. <br /> MAP UNIT SETTINGS <br /> Location: alpine areas where igneous an metamorphic rocks predominate, major extent. <br /> General Landforms/Geomorphology: steep to very steep mountain slopes. <br /> Parent material: residuum and colluvium. <br /> Geologic symbol: Tmi, Xb, Xfh, Xg, Yg. <br /> Elevation range: 11,600 to 13,500 feet. <br /> Aspect: all. <br /> Climatic zone: alpine. <br /> Mean annual precipitation: 30 to 50 inches. <br /> Mean annual air temperature: 34°F. to 38°F. <br /> Average annual snowfall: 300 to 500 inches. <br /> COMPOSITION <br /> 35 percent Moran and similar soils. <br /> 30 percent Rock outcrop. <br /> 25 percent Teewinot and similar soils. <br /> Contrasting inclusions <br /> 10 percent Leighcan family on convex slopes and near timberline. <br /> TYPICAL PROFILES: <br /> Moran <br /> A representative pedon of this soil occurs on a 45 percent southeast facing backslope at 11,337 <br /> feet elevation located in the NW 1/4, NW 1/4, sec. 35, T. 45 S., R. 76 W., in Summit County, <br /> Colorado supporting a curly sedge/Alpine clover plant association <br /> Oi -- 2.5 to 1 inches; aspen leaf and twig litter. <br /> Oe -- 1 to 0 inches; partially decomposed aspen leaf and twig litter. <br /> Al -- 0 to 12 inches; dark brown (10YR 5/2) gravelly loam, very dark brown (10YR 3/2) moist; <br /> weak very fine granular structure; soft, very friable, non-sticky, non-plastic; many fine and <br /> very fine, few medium roots; many fine tubular pores; 15 percent subangular rock fragments; <br /> neutral; clear wavy boundary. <br /> A2 -- 12 to 23 inches; brown (10YR 5/3)very gravelly loam, dark brown (10YR 3/3) moist; weak <br /> medium subangular blocky parting to moderate fine granular structure; soft, very friable, non- <br /> sticky, non-plastic; many very fine, common fine and medium roots; many fine tubular pores; <br /> 30 percent subangular rock fragments; neutral; clear smooth boundary. <br /> Bwl -- 23 to 41 inches; yellowish brown (10YR 6/4) extremely cobbly sandy clay loam, dark <br /> yellowish brown (7.5YR 4/4) moist; moderate fine subangular blocky structure; slightly hard, <br /> friable, slightly sticky, slightly plastic; common very fine, fine and medium roots; common fine <br /> and medium tubular pores; 65 percent subangular rock fragments; slightly acid; gradual wavy <br /> boundary. <br /> Bw2 --41 to 60 inches; light yellowish brown (7.5YR 6/6) extremely flaggy sandy loam, yellowish <br /> brown (5YR 4/3) moist; weak fine subangular blocky structure; soft, friable, non-sticky, non- <br /> plastic; common medium and few very fine and fine roots; many fine tubular pores; 60 <br /> percent subangular rock fragments; neutral. <br /> Exhibit I —Appendix A I-A-20 March 2024 <br />