02055oam 2200529Ia 450 991069548220332120150921093545.0(CKB)5470000002369935(OCoLC)75968687(EXLCZ)99547000000236993520061114d1987 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierMineral resources of the Black Rock Wilderness Study Area, Graham County, Arizona[electronic resource] /by Frank S. Simons [and others]Washington :U.S. Dept. of the Interior, U.S. Geological Survey ;Denver, Colo. :For sale by the Books and Open-File Reports Section, U.S. Geological Survey,1987.1 electronic text illustrations, maps, platesMineral resources of wilderness study areas--southeastern Arizona ;ch. CU.S. Geological Survey bulletin ;1703-CStudies related to wilderness--Bureau of Land Management wilderness study areasTitle from title screen (viewed on Nov. 8, 2006).Includes bibliographical references (page 9).Mines and mineral resourcesArizonaBlack Rock WildernessGeologyArizonaBlack Rock WildernessGeologyfastMines and mineral resourcesfastBlack Rock Wilderness (Ariz.)ArizonaBlack Rock WildernessfastMines and mineral resourcesGeologyGeology.Mines and mineral resources.Simons Frank S(Frank Stanton),1917-1387336Geological Survey (U.S.)GPOGPOOCLCQOCLCFOCLCOOCLCQGPOBOOK9910695482203321Mineral resources of the Black Rock Wilderness Study Area, Graham County, Arizona3515510UNINA