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Coal bed “Drmno” encompasses the area of 60 km2, and total reserves are estimated to 608·106 tons. The coal is being exploited by mine stripping method, and the capacity was 6·106 tons in 2007. Coal layer, with average thickness of 16 m, relatively uniformly sinks from the terrain surface, at the east of the bed, towards west and north, with average slope of about 6°. Coal depth ranges from 35 m, from eastern front advance point, to 100 m, in the western front point. Coal exploitation is impeded by water-be...