2024-05-17_REVISION - M1977493 (3)

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Permit M-1977-493—Climax Mine Technical Revision 37 (TR-37) C --44 to 60 inches; brownish yellow (10YR 6/6) loam, yellowish brown (10YR 5/6) moist; weak medium subangular blocky structure; few medium roots; 10 percent gravel; neutral (pH 6.8). Soil depth to bedrock is greater than 40 inches. The reaction of the soil is neutral. The A horizon has hue of 10YR, value of 2 to 4 dry, and 2 or 3 moist, and chroma of 1 to 2. The texture of the fine earth fraction is loam . The soil has 5 to 15 percent rock fragments The C horizon has hue of 10YR, value of 5 or 6 dry, and 4 or 5 moist, and chroma of 3 to 6. The texture of the fine earth fraction is loam or sandy loam. The soil has 5 to 35 percent rock fragments. Teewinot family The Teewinot series consists of well drained soils that are shallow to hard bedrock. They are on mountinsides and ridges. They formed in material weathered from granite or gneiss. Slopes are 5 to 70 percent. The mean annual precipitation is about 40 inches, and the mean annual air temperature is about 30 degrees F. Taxonomic class: Loamy-skeletal, mixed Lithic Cryumbrepts Reference Pedon: A representative pedon of this soil occurs in map unit 932B supporting kobresia/golden avens plant association on a 38 percent northeast facing slope at 11,680 feet elevation located in the SW 1/4, NW 1/4, sec. 5 , T. 8 S., R. 89 W., in Eagle County, Colorado: Al -- 0 to 7 inches; (10YR 5/2)very stony loam, (10YR 3/2) moist; weak fine subangular blocky structure parting to weak fine granular; very friable, nonsticky, nonplastic; many fine and very fine and few medium roots; many fine interstitial pores; 45 percent subangular sandstone rock fragments; moderately acid; clear smooth boundary. Bw-- 7 to 16 inches; (5YR 7/4)very cobbly sandy clay loam, (5YR 5/4) moist; moderate fine and medium subangular blocky structure; friable, nonsticky, nonplastic; common fine and very fine roots; many fine and very fine interstitial pores; 57 percent subangular sandstone rock fragments; moderately acid; abrupt smooth boundary. R-- 16 inches; hard red sandstone bedrock. Aquolls The Aquolls consists of deep and very deep, poorly drained soils. These soils occur on floodplains and alluvial valley fans on slopes which range from 0 to 5 percent. The elevation range is more than 9,000 feet. Mean annual precipitation is 15 inches. The mean annual air temperature is 320F and the water table is at or near the surface most of the year. Representative Pedon: A representative pedon of this soil is located in the SW 1/4, SE 1/4, sec. 15, T. 9 S., R. 71 W., in Park County, Colorado. A-- 0 to 5 inches; dark grayish brown (10YR 4/2)very gravelly sandy loam, very dark grayish brown (10YR 3/2) moist; weak fine granular structure; soft, very friable, non-sticky, non-plastic; many fine and very fine roots; many fine and very fine interstitial pores; 40 percent gravel; neutral (pH 7.2); clear smooth boundary. Exhibit I —Appendix A I-A-53 March 2024