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Section 783 . 15 GROUND WATER INFORMATION <br /> ^• INTRODUCTION <br /> The Mid-Continent Resources Coal Basin Mine is located in a <br /> small topographic basin drained by Coal Creek into the Crystal <br /> River. Coal Basin is approximately 26 square miles in size and <br /> is rimmed by outcrops of the coal bearing Mesaverde formation. <br /> Mid-Continent Resources currently has mining operations on <br /> lease coal on fee title land and is planning expansion to <br /> federal coal lease land immediately west of Coal Basin. The <br /> existing mine portals are located on the west and southwest sides <br /> of the basin with the coal processing plant on Coal Creek. <br /> Future plans include expansion beneath the west divide of Coal <br /> Basin and construction of a tunnel from the coal processing <br /> plant , beneath the divide (Huntsman Ridge) to the proposed <br /> • expanded mine area (Figure 783 . 15-1) . <br /> Coal Basin is a geologically controlled structural basin created <br /> by folding of sedimentary units over an intrusive body. <br /> The resulting anticline is a spur at the southern end of the <br /> Grand Hogback. The more resistant sandstones of the Mesaverde <br /> rim the edge of the basin while the easily eroded Mancos shale <br /> makes up the center. The economic coal producing zones are <br /> located within the Mesaverde and outcrop as a band around the rim <br /> of Coal Basin. The coal zones currently being mined by Mid- <br /> Continent dip to the west and southwest, beneath the divide of <br /> Huntsman Ridge. The surface topography of the west side of <br />- 1 <br />