01450oam 2200409Ia 450 991069747500332120080826090818.0(CKB)5470000002388190(OCoLC)48270684(EXLCZ)99547000000238819020011105d2001 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierEconomic and environmental evaluations of extractable coal resources conducted by the U.S. Geological Survey[electronic resource][Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,[2001]2 unnumbered pages digital, PDF fileUSGS fact sheet ;FS-109-01Title from title screen (viewed on Aug. 22, 2008)."November 2001."Includes bibliographical references.Coal reservesUnited StatesCoal mines and miningEnvironmental aspectsUnited StatesCoal reservesCoal mines and miningEnvironmental aspectsGeological Survey (U.S.)GISGISOCLCQOCLCGGPOBOOK9910697475003321Economic and environmental evaluations of extractable coal resources conducted by the U.S. Geological Survey3119646UNINA