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ALLUVIAL VALLEY FLOOR DETERMINATION <br />MCCLANE CANYON MINE <br />COAL MINE WASTE PILE <br />GARFIELD COUNTY, COLORADO <br />this comparison with regional practices, the limited alluvial areas within the site area are <br />too small to be useful for agriculture and, therefore, are not considered AVFs under <br />section 2.06.8 (c)(ii)(A). <br />Conclusion <br />Nearly 95 percent of the investigation area is covered by various deposits that <br />resulted from unconsolidated runoff or slope wash, talus, and landslide deposits. <br />Therefore, this area does not meet the definition of an AVF, as defined by the <br />regulations. <br />2. Approximately 5 percent of the area is older alluvium exposed at the surface (not <br />including the current active channel). <br />3. The two areas with exposed older alluvium (within the investigation area) total <br />slightly more than one acre, which is considerably smaller than the smallest <br />currently cultivated parcel along East Salt Creek (9.1 acres). Therefore, these <br />alluvial areas do not meet the regional practices criterion, as required by the <br />regulations, to be considered AVFs. <br />References <br />Conner, Carl E. 2009. Class III Cultural Resource Investigation of a Proposed Future <br />Area of Disturbance in Garfield County, Colorado for McClane Canyon Mine, L.L.C. <br />BLM ref no. 1110-02. Grand River Institute. November 19, 2009 <br />Rare Earth Science/ERO Resources Corporation (ERO). 2007. Alluvial Valley Floor <br />Determination, Red Cliff Mine. For J.E. Stover & Associates.April 24, 2007.. <br />7 fRO <br />Resources <br />Corporation <br />