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At that time the Coal Basin operation will, in fact, be a single <br /> mine with multiple production faces . Currently, run of mine coal <br /> from the mine portals is transported approximately four miles to <br /> a centrally located coal preparation plant by truck. <br /> The Coal Basin life-of-the mine operations will be <br /> conducted on 5, 841 acres of federal coal lease lands, 3 ,883 acres <br /> of private lands and 82 acres of federal non-coal special use <br /> permitted lands for a combined total of 9 , 806 acres . Of the <br /> total acreage; 9 ,319 acres, consisting of 5, 841 acres of federal <br /> coal lease lands and 3, 478 acres of private lands, are coal <br /> bearing . <br /> All of the coals in Coal Basin are of metallurgical <br /> quality. After cleaning and preparation at the Coal Creek <br /> Preparation Plant the washed coal is sold in the metallurgical <br /> coal market . <br /> 2 . Production methods and equipment <br /> a. General type and method of mining <br /> Mid-Continent Resources, Inc . , Coal Basin Mine <br /> Complex is an underground operation utilizing a combination of <br /> room and pillar and longwall mining methods . Continuous miners <br /> are used in the development of room and pillar sections whereas <br /> shearers are used in longwall mining panels . <br /> b . Engineering techniques <br /> Two general types of underground mining methods <br /> are utilized to produce coal in Coal Basin. They are the room <br />