Laserfiche WebLink
Mayo and Associates, LC <br />~• 3.4 Co-Op Mine (Wasatch Plateau, Utah) <br />C. W Mining Company operates the Co-Op mine, which includes the Bear Canyon Mine, <br />t Wild Horse Ridge lease azea, and fee lands. The discussion presented below is only for <br />Bear Canyon Mine. In the Bear Canyon Mine coal has been extracted from the Tank, <br /> Blind Canyon and Hiawatha Seams (Figures 3 and 7). The Tank Seam is separated from <br /> the underlying Blind Canyon Seam by 240 feet of Blackhawk Formation sandstone, <br /> mudstone, and shale, and the Blind Canyon Seam is separated from the underlying <br /> Hiawatha Seam by 40 to 110 feet of Blackhawk Formation sandstone, mudstone, and <br /> shale. The Hiawatha Seam has direct contact with the Spring Canyon Member of the Staz <br /> Point Sandstone. <br />'~ Groundwater enters the Bear Canyon mine through one pathway (Mayo and Associates, <br /> 1999a): roof inflows from sandstone channels in the Blackhawk Formation, <br /> 3.4.1 Blind Canyon Seam Sandstone Channel <br /> Workings in the Blind Canyon Seam encountered a large sandstone channel in the mine <br />1 roof in numerous locations between 1988 and 1994. In the Beaz Canyon Mine, the Blind <br /> Canyon Seam crops out along the mazgins of Wild Horse Ridge (Gentry Mountain), <br /> several hundred feet above canyon floors to the west, south and east. The Beaz Canyon <br /> mine is located in an unfaulted block in the Pleasant Valley zone (Figure 10). The width <br /> of the unfaulted block is about 3,250 feet. To the west Bear Creek Canyon occupies the <br /> damage zone of the Pleasant Valley Fault, to the south is Huntington Canyon, and to the <br /> <br /> <br /> Evaluation of Potential Groundwater Inflows 40 February 24, 2004 <br /> Associated with E Seam Mining, <br /> West Elk Mine, Somerset, Colorado <br />