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Permit M-1977-493—Climax Mine Technical Revision 37 (TR-37) <br /> BYE--20 to 31 inches; pink (7.5YR 7/4) extremely cobbly sandy clay loam, yellowish red (7.5YR <br /> 4/6) crushed moist; moderate fine subangular blocky structure; friable, slightly sticky, slightly <br /> plastic; few faint clay films on faces of peds; few very fine and common fine and medium <br /> roots; few coarse and common fine and medium pores; very strongly acid; 30 percent <br /> cobbles, 35 percent pebbles, 5 percent stones; gradual smooth boundary. <br /> Btl --31 to 40 inches; pink (7.5YR 7/3) extremely cobbly clay loam, reddish brown (5YR 5/4) <br /> crushed moist; moderate medium subangular blocky structure; friable, slightly sticky, slightly <br /> plastic; common faint clay films on faces of peds; common fine and medium roots; common <br /> very fine and fine and common medium and coarse pores; very strongly acid; 25 percent <br /> pebbles, 40 percent cobbles, 5 percent stones; clear smooth boundary. <br /> Bt2 --40 to 60 inches; pink (5YR 7/3) very cobbly clay loam, yellowish red (5YR 5/6)crushed <br /> moist; moderate medium subangular blocky structure; firm, sticky, plastic; common distinct <br /> clay films on faces of peds and in pore; common medium roots; common very fine and fine <br /> pores; strongly acid; 25 percent cobbles, 30 percent pebbles. <br /> Rubbleland <br /> No soil is associated with this inclusion. Limited by steepness, and surface roughness that <br /> includes loose rock and rock outcrop exposures. <br /> SOIL PROPERTIES AND QUALITIES <br /> Leadville <br /> Landform: <br /> Parent Material: <br /> Effective rooting depth: greater than 60 inches. <br /> Natural drainage class: well. <br /> Depth to seasonal high water table: greater than 6 feet. <br /> Available water capacity: moderate. <br /> Permeability: moderate. <br /> Runoff.• moderate. <br /> VEGETATION <br /> Potential natural communities: <br /> Leadville: subalpine fir-Engelmann spruce/Rocky Mountain whortleberry (Abla-Pien/Vamy2) <br /> below 11,000 feet and subalpine fir-Engelmann spruce/grouse whortleberry (Abla-Pien/Vasc) <br /> above 11,000 feet. <br /> Seral stages: includes plants of the respective potential natural communities. <br /> Present vegetation: includes plants of the respective potential natural communities. <br /> USE AND MANAGEMENT CONSIDERATIONS <br /> Major uses: wildlife habitat, dispersed non-motorized recreation, and watershed. <br /> Mass movement potential: <br /> Landslides: low. <br /> Debris flows: low. <br /> Snow avalanche: low. <br /> Road and trail limitations: <br /> Cut and fill slope stability <br /> Leadville: moderate -slope. <br /> Improved unsurfaced roads: <br /> Leadville: severe -slope. <br /> Offroad vehicle roads and trails: <br /> Leadville: severe -slope, cobbles and stones. <br /> Foot trails and paths: <br /> Leadville: moderate -slope. <br /> Revegetation Limitations: <br /> Exhibit I —Appendix A I-A-7 March 2024 <br />