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• MINING AND RECLAMATION PLAN January, 1986 <br />MT. GUNNISON N0. 1 MINE <br />• <br /> <br />PAONIA SOIL SURVEY AREA <br />SOIL MAPPING UNIT DESCRIPTIONS <br />MAPPING <br />UNIT: 109E (Absarokee <br />part) 1/09F <br />PUBLISHED UNIT: 2 <br />MAPPING UNIT Absarokee-Nork looms <br />Position: Steeper slopes, small. ridges on the uplands and valley <br />sideslopes <br />Drainage: Well drained <br />Slope: 6-25 percent <br />Soil Profile: Texture Thickness Permeability <br />Surface: loam 0 - 7 Inches Moderate {0.6-2.O:Jhr) <br />Subsoil: clay 7 - 30 Inches Slow and very slow <br /> <br />Underlying material is channery clay loam and is over sandstone between 20 and <br />40 inches. Bedrock is 20-40 inches. <br />Available water capacity for the 30" rooting depth is 4.7 inches. Water table <br />depth is greater than 72 inches. <br />Erosion Hazard: Moderate to high from water, slight from wind. Frequency of <br />flooding is none. <br />Capability Unit: IVe21 irrigated: VIe nonirrigated. <br />Range Site: Brushy loam <br />Normal production is 2,000 lb/acre dry <br />weight forages <br />Other features: <br />Surface runoff is medium to rapid <br />May have small areas of exposed bedrock, channery and stone. <br />Soil pH is 6.1 to 8.4. <br />Salinity is less than 2 Mmhos/cm. <br />Shrink-swell potential is moderate to high. <br />Risk of corrosion is high for uncoated steel and low for concrete. <br />Low frost action potential. <br />2-280 <br />