01668oam 2200517 450 991070398840332120150824071500.0(CKB)5470000002435854(OCoLC)882122638(EXLCZ)99547000000243585420140630d1904 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe Porcupine placer district, Alaska /by Charles W. WrightWashington, D.C. :Department of the Interior, United States Geological Survey,1904.Washington :Government Printing Office.1 online resource (35 pages, X pages of plates) illustrations, mapsGeological Survey / Bulletin ;no. 236Series A, Economic geology ;37Series B, Descriptive geology ;42Title from title screen (viewed June 26, 2014).Includes bibliographical references and index.GeologyAlaskaGold mines and miningAlaskaGeologyfastGold mines and miningfastAlaskafastGeologyGold mines and miningGeology.Gold mines and mining.Wright Charles Will1879-1412744Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOBOOK9910703988403321The Porcupine placer district, Alaska3520055UNINA