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<br />SOILS <br /> <br />General <br />The proposed area lies in the valley of the Cache la Poudre <br />River. This valley is characterized by such flood plain features <br />as marshes, ox bow lakes, meander scars and stream terraces. <br />These are typical of streams east of the Front Range. <br />Soil Types, ThicY.nesses, Distribution, Suitability for Mining <br />The proposed site lies on the valley floor. Topsoil is 0 to <br />18 inches deep; overburden is 3 to 8 feet deep. Soil types <br />include Caruso clay loam, Table Mountain loam, Nunn clay loam, <br />Stoneham loam, and Kim loam, deep soils with excellent moisture <br />holding capacity and very dark grayish brown hues, typically <br />underlain by sand and gravel; and riverwash, a sandy, cobbly, <br />alluvial strata. See Figure 11, U.S. Department of Agriculture <br />Soil Interpretations and Figure 12, Soils Distribution Map. <br />The underlying gravel deposit ranges from 6 to 14 feet thick. <br />Gravels consist of mountain rock, broken off or weathered, <br />carried and reworked by the river. There are no large boulders <br />due to the distance from the mountains and lack of stream energy <br />to carry them. Particle sizes range from cobble to sand and silt. <br />Cobbles are well rounded due to the distance they have been <br />transported by the stream. The sand and gravel depcsit is ranked <br />"F-1", coarse aggregate, relatively clean and sound, floodplain <br />deposit. <br />I-1 <br />