2024-05-17_REVISION - M1977493 (3)

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Permit M-1977-493—Climax Mine Technical Revision 37 (TR-37) and many very fine pores; very strongly acid; 25 percent pebbles, 25 percent cobbles; gradual smooth boundary Bt/E--20 to 31 inches; pink (7.5YR 7/4) extremely cobbly sandy clay loam, yellowish red (7.5YR 4/6) crushed moist; moderate fine subangular blocky structure; friable, slightly sticky, slightly plastic; few faint clay films on faces of peds; few very fine and common fine and medium roots; few coarse and common fine and medium pores; very strongly acid; 30 percent cobbles, 35 percent pebbles, 5 percent stones; gradual smooth boundary. Btl --31 to 40 inches; pink (7.5YR 7/3) extremely cobbly clay loam, reddish brown (5YR 5/4) crushed moist; moderate medium subangular blocky structure; friable, slightly sticky, slightly plastic; common faint clay films on faces of peds; common fine and medium roots; common very fine and fine and common medium and coarse pores; very strongly acid; 25 percent pebbles, 40 percent cobbles, 5 percent stones; clear smooth boundary. Bt2 --40 to 60 inches; pink (5YR 7/3) very cobbly clay loam, yellowish red (5YR 5/6)crushed moist; moderate medium subangular blocky structure; firm, sticky, plastic; common distinct clay films on faces of peds and in pore; common medium roots; common very fine and fine pores; strongly acid; 25 percent cobbles, 30 percent pebbles. Cryaquolls A representative pedon of this soil occurs on a 4 percent west facing slope at 11,600 feet elevation located in the NW 1/4, NE 1/4, sec. 4, T. 8 S., R. 79 W., in Eagle County, Colorado and supports a Geyers willow/marsh marigold wetland community type. Al --0 to 8 inches; dark brown (10YR 4/1)silt loam, black (10YR 2/1) moist, moderate medium subangular blocky structure; friable, nonsticky, nonplastic; many fine and very fine and common medium roots; common fine interstitial pores; neutral; clear smooth boundary. Cgl --8 to 16 inches; gray (10YR 6/1) silty clay loam, dark gray (10YR 4/1) moist; massive structure parting to moderate medium and fine subangular blocky; many very fine roots; few fine tubular pores; 15 percent rock fragments; slightly acid, clear wavy boundary. Cg2 --16 to 23 inches; brown (10YR 6/2) clay, dark brown (10YR 4/2) moist; weak medium subangular blocky structure parting to moderate fine granular; very friable, nonsticky, nonplastic; many very fine and common fine and medium roots; many fine tubular pores; 30 percent rock fragments; slightly acid; clear smooth boundary. IICg3 --23 to 30 inches; yellowish brown (10YR 7/2)very gravelly coarse sandy loam, dark yellowish brown (10YR 5/2) moist; massive parting to moderate fine subangular blocky structure; firm, slightly sticky, slightly plastic; few fine tubular pores; 40 percent round rock fragments; neutral; clear smooth boundary. IICg4 --30 to 45 inches; light greenish gray (5BG 7/1)very gravelly coarse sandy clay loam, massive; firm, slightly sticky, slightly plastic; few fine tubular pores; 40 percent round rock fragments; neutral. Soil depth to bedrock is greater than 60 inches. The reaction of the soil is neutral to moderately acid. The O horizon thickness ranges from 1 to 5 inches. The A horizon has hue of 10YR, value of 4 or 5 dry, and 2 or 3 moist, and chroma of 1 to 3. The texture of the fine earth fraction is loam or silt loam. The soil has 5 to 50 percent rock fragments. The B horizon has hue of 10YR, 7.5YR or 5YR, value of 5 to 7 dry, and 3 to 5 moist, and chroma of 3 to 4. The texture of the fine earth fraction is loam to sandy clay loam. The soil has 40 to 60 percent rock fragments. Exhibit I —Appendix A I-A-4 March 2024