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~~ <br />2.05.3 (6) Overburden. <br />Equipment used in pits, on highwalls and spoil banks: <br />769 Caterpillar Trucks <br />400 Hough Wheeled Loader <br />72-71 Terex Wheeled Loader <br />72-51 Terex Wheeled Loader <br />TD-30 International Track Dozer <br />AC-21 Allis-Chalmers Track Dozer <br />TS-24 Terex Scrapers <br />T-4 Ingersoll-Rand Rotary Drill <br />White Water Truck <br /> <br />• Bottom coal seam is three to five feet in thickness and is <br />referred to as the Cameron Seam. It is overlain by up to <br />30 to 35 feet of shale, sandy-shale and sandstone, all well <br />consolidated. The second seam is six to eight feet thick <br />and is referred to as the Lennox Seam. Overburden consists <br />of sandstone shale and sandy-shale, all well consolidated. <br />Mining operations will require highwalls ranging from eight <br />to forty feet. Because of the well consolidated nature of <br />the overburden, highwalls will be vertical. Stripping will <br />be done along the strike of the coal and spoils will be used <br />to backfill on the low side, and no slippage is anticipated. <br />The pit will range from 100 to 400 feet in width. <br />~~ 266 <br />