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Permit M-1977-493—Climax Mine Technical Revision 37 (TR-37)
<br /> very fine, few medium and coarse roots; many fine interstitial pores; 30 percent gravel, 5 percent
<br /> cobble, 20 percent stone; slightly acid (pH 6.2); gradual wavy boundary
<br /> C --22 to 60 inches; very pale brown (10YR 7/4) extremely stony sandy loam, yellowish brown
<br /> (10YR 5/4) moist; massive; slightly hard, very friable, non-sticky, non-plastic; few very fine roots;
<br /> many fine interstitial pores; 30 percent gravel, 10 percent cobble, 40 percent stone; medium acid
<br /> (pH 6.0).
<br /> Soil depth to bedrock is greater than 40 inches. The reaction of the soil is medium acid to
<br /> neutral.
<br /> The A horizon has hue of 10YR or 7.5YR, value of 3 to 5 dry, and 2 or 3 moist, and chroma of 1
<br /> to 4. The texture of the fine earth fraction is loam. The soil has 30 to 65 percent rock fragments.
<br /> The E horizon, where present, has hue of 10YR, value of 6 or 7 dry, and 5 moist, and chroma of 3
<br /> to 4. The texture of the fine earth fraction is sandy loam. The soil has 40 percent rock fragments.
<br /> The Bw horizon has hue of 10YR or 7.5YR, value of 5 or 6 dry, and 3 to 5 moist, and chroma of 3
<br /> to 6. The texture of the fine earth fraction is sandy loam or loam. The soil has 50 to 80 percent
<br /> rock fragments.
<br /> The C horizon has hue of 10YR, value of 5 to 7 dry, and 3 to 5 moist, and chroma of 4. The
<br /> texture of the fine earth fraction is sandy loam. The soil has 75 to 80 percent rock fragments.
<br /> Shawa family
<br /> The Shawa series consists of very deep, well to moderately well drained soils formed in thick
<br /> alluvium or alluvium-colluvium derived from sedimentary, metamorphic, and igneous rocks.
<br /> Shawa soils are on fans, fan remnants, stream terraces, structural benches, mountain sideslopes
<br /> and foot slopes. Slopes range from 0 to 65 percent. The mean annual precipitation is about 15
<br /> inches and the mean annual air temperature is about 41 degrees F.
<br /> Representative Pedon:
<br /> A representative pedon of this soil is located in the NW 1/4, SE 1/4, sec. 18, T. 12 S., R. 71 W., in
<br /> Park County, Colorado. Taxonomic Class: fine-loamy, mixed Pachic Haploborolls.
<br /> Al -- 0 to 10 inches; very dark brown (10YR 2/2) loam, black (10YR 2/1) moist; moderate fine
<br /> granular structure; soft, friable, slightly sticky, slightly plastic; many fine, very fine, and medium
<br /> roots; 10 percent gravel; neutral (pH 6.8); clear smooth boundary.
<br /> A2 -- 10 to 20 inches; very dark brown (10YR 2/2) loam, black (10YR 2/1) moist; moderate
<br /> medium subangular blocky parting to medium granular structure; soft, friable, slightly sticky,
<br /> slightly plastic; many fine, very fine, and medium roots; 10 percent gravel; neutral (pH 6.8);clear
<br /> wavy boundary.
<br /> A3 --20 to 26 inches; dark brown (10YR 3/3)gravelly loam, very dark grayish brown (10YR 3/2)
<br /> moist; moderate medium subangular blocky parting to medium granular structure; slightly hard,
<br /> friable, slightly sticky, slightly plastic; many fine and medium roots; 15 percent gravel; neutral (pH
<br /> 6.8); clear smooth boundary.
<br /> AB --26 to 44 inches; very dark brown (10YR 2/2) loam, black (10YR 2/1) moist; moderate
<br /> medium subangular blocky and moderate medium granular structure; common medium and fine
<br /> roots; 10 percent gravel; neutral (pH 6.8); clear wavy boundary.
<br /> Exhibit I —Appendix A I-A-52 March 2024
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