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<br />3.8 <br /> <br />Soils are sparsely distributed and poorly developed within the Cornet Creek <br />watershed. Approximately 75 percent of the watershed consists of outcrops of <br />resistant bedrock or talus deposits with little or no soil cover. Soils with <br />expans i ve propert i es due to swe 1"1 i ng cl ays have developed where the shales of <br />the Morri son Format i on are expos!,d in the lower port i on of the watershed (see <br />Figure 3.1). Exposures of the Morrison Formation are limited to approximately <br />10 percent of the total watershed area. A thin reddish soil has developed on <br />the deposits of glacial drift in the upper and lower portion of the watershed. <br />The clay content of the glacial drift results in a high clay content for the <br />soils developed on these deposits. These 9lacial drift deposits cover ap- <br />proximately 15 percent of the total watershed area. The glacial drift in the <br />lower portion of the watershed exhibits unstable, steep slopes where the deposit <br />has been dissected by Cornet Crel,k. As discllssed in Section 3.1, the glacial <br />drift in the upper portion of the watershed is stable and is vegetated with <br />shrubs, grasses, and some trees. <br />