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Permit M-1977-493—Climax Mine Technical Revision 37 (TR-37)
<br /> Cryaquolls
<br /> A representative pedon of this soil is located in the NW 1/4, SW 1/4, sec. 25, T. 14 S., R. 77 W.,
<br /> in Chaffee County, Colorado.
<br /> Oi --4 to 0 inches; dense, slightly decomposed mat of the remains of sedge and rush plants.
<br /> A-- 0 to 12 inches; black (2.5Y 2/0)silt loam; moderate coarse subangular blocky structure; hard,
<br /> friable, slightly sticky, non-plastic; many fine and very fine roots; few fine interstitial pores; 5
<br /> percent gravel; neutral (pH 6.8); clear wavy boundary.
<br /> Ag -- 12 to 18 inches; black (2.5Y 2/0)very gravelly silt loam; common fine distinct greenish gray
<br /> (5BG 5/1) mottles; moderate coarse subangular blocky structure; hard, friable, sticky, non-
<br /> plastic; common fine and very fine roots; few fine interstitial pores; 30 percent gravel, 5
<br /> percent cobble; neutral (pH 7.0); clear wavy boundary.
<br /> Cg -- 18 to 60 inches; dark greenish gray (5BG 4/1)very gravelly sandy loam; massive; hard,
<br /> friable, non-sticky, non-plastic; common fine roots; few fine interstitial pores; 40 percent
<br /> gravel, 5 percent cobble; neutral (pH 7.0).
<br /> Soil depth to bedrock is greater than 40 inches. The reaction of the soil is strongly acid to
<br /> mildly alkaline.
<br /> The A horizon has hue of 10YR or 7.5YR, value of 3 to 5 dry, and 2 or 3 moist, and
<br /> chroma of 0 to 3. The texture of the fine earth fraction is silt loam, loam, sandy loam, or
<br /> silty clay loam. The soil has 0 to 35 percent rock fragments.
<br /> The Ag horizon, where present, has hue of 10YR to 5Y, value of 3 or 4 dry, and 2 or 3
<br /> moist, and chroma of 0 to 3. The texture of the fine earth fraction is silt loam, sandy
<br /> loam, or loam. The soil has 5 to 40 percent rock fragments.
<br /> The Cg horizon has hue of 10YR to 5Y, or 5BG, value of 4 or 5 dry, and 2 to 4 moist, and
<br /> chroma of 0 to 6. The texture of the fine earth fraction is sandy loam, loamy sand, silt
<br /> loam, clay loam, sandy clay loam, or sand. The soil has 10 to 60 percent rock fragments.
<br /> Borohemists
<br /> A representative pedon of this soil occurs on a 2 percent south facing concave slope at 10,416
<br /> feet elevation located in the NW 1/4, NW 1/4, sec. 15, T. 10 S., R. 84 W., in Pitkin County,
<br /> Colorado supporting a water sedge/beaked sedge, water sedge/elephant-head and Baltic
<br /> rush/sedges community type
<br /> Oil -- 11.5 to 0 inches; unmatted sedge leaves and undecomposed moss litter.
<br /> Oi2 -- 0 to 4 inches; dark reddish brown (5YR 3/2) and dark reddish brown (5YR 3/2) rubbed
<br /> moist; extremely acid (pH 4.1); clear smooth boundary.
<br /> Oel --4 to 11.5 inches; dark reddish brown (5YR 2/2) and very dark gray (5YR 3/1) rubbed
<br /> moist; extremely acid (pH 4.1); gradual smooth boundary.
<br /> Oe2 -- 11.5 to 28 inches; very dark brown (10YR 2/2) and very dark grayish brown (10YR 3/2)
<br /> rubbed moist; extremely acid (pH 4.1); gradual smooth boundary.
<br /> Oe3 --28 to 32 inches; very dark grayish brown (10YR 3/2) and dark brown (10YR 3/3) rubbed
<br /> moist; extremely acid (pH 4.3); gradual smooth boundary.
<br /> Cgl -- 32 to 34 inches; very dark gray (5Y 3/1) and very dark gray (5Y3/1) rubbed moist silt;
<br /> massive; very hard, firm, slightly sticky, nonplastic; few medium and many very fine and fine
<br /> roots; common fine interstitial pores; extremely acid (pH 4.2); clear smooth boundary.
<br /> Exhibit I —Appendix A I-A-28 March 2024
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