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<br />Soil Replacement Thickness <br />The soil replacement thickness for the first five-year permit term was projected to be 1.0 feet for the mine <br />area. The soil balance as of December 31, 2001 was calculated as follows: <br />Mine Area <br />Total disturbance azea = 460.0 acres <br />Permanent Facilities & Topsoil replaced = 90.0 acres <br />Disturbance area requiring soil = 370.0 acres <br />Soil in stockpiles (Table 00.1) = 799.1 acre-feet <br />Mean replacement depth available = 2.2 feet <br />By dividing the soil available by the area requiring soil replaced, we arrive at the 2001 soil balance <br />thickness of 2.2 feet for the mine area. More than enough topsoil has been salvaged to reclaim the existing <br />disturbance with the permitted replacement thickness of 1.0 feet. <br />• Reveeetation <br />Revegetation activities in 2001 included revegetation by drill seeding 28.6 acres using seed mix (see Seed <br />Tag #1). <br />Wildlife Mooitorine <br />Big game aerial studies were completed by Powder River Eagle Studies of Gillette, Wyoming, during <br />January 2001. See Wildlife Tab, Yoast Mine Site 2001 Big Game Aerial Survey. <br />Literature Cited <br />1995 Annual Reclamation Report, Yoast Mine, Routt County, Colorado. Submitted to Division of Minerals <br />and Geology in March 1996 by SCC, Flagstaff, Arizona. <br />1996 Annual Reclamation Report, Yoast Mine, Routt County, Colorado. Submitted to Division of Minerals <br />and Geology in March 1997 by SCC, Flagstaff, Arizona. <br />. 1997 Annual Reclamation Report, Yoast Mine, Routt County, Colorado. Submitted to Division of Minerals <br />and Geology in March 1998 by SCC, Flagstaff, Arizona. <br />4 <br />