01643oam 2200409Ia 450 991069161420332120030327085953.0(CKB)5470000002347246(OCoLC)49992497ocm49992497(OCoLC)995470000002347246(EXLCZ)99547000000234724620020613d2002 ua 0engurcn||||||txtrdacontentcrdamediacrrdacarrierEvaluation of economically extractable coal beds in the Gillette coal field, Powder River Basin, Wyoming and Montana[electronic resource] /by Margaret S. Ellis ... [and others]Version 1.0.[Denver, Colo.] :U.S. Dept. of the Interior, U.S. Geological Survey,2002.U.S. Geological Survey open-file report ;02-180Title from HTML title screen (viewed on June 12, 2002).Includes bibliographical references.Coal mines and miningEconomic aspectsWyomingGillette RegionCoal mines and miningEconomic aspectsPowder River Basin (Wyo. and Mont.)Coal mines and miningEconomic aspectsCoal mines and miningEconomic aspectsEllis Margaret S(Margaret Stamm),1950-1383714Geological Survey (U.S.)GISGISGPOBOOK9910691614203321Evaluation of economically extractable coal beds in the Gillette coal field, Powder River Basin, Wyoming and Montana3430682UNINA