02090oam 2200589 450 991071145330332120181003081932.0(CKB)5470000002483508(OCoLC)953268926(OCoLC)995470000002483508(EXLCZ)99547000000248350820160708d1953 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierExploratory drilling program of the U. S. Geological Survey for evidences of zinc-lead mineralization in Iowa and Wisconsin, 1950-51 /by Allen F. Agnew, Arthur E. Flint and John W. AllinghamWashington, D.C. :United States Department of the Interior, Geological Survey,1953.1 online resource (37 pages) illustrations, mapsGeological Survey circular ;231"Prepared in cooperation with the Wisconsin Geological and Natural History Survey."Includes bibliographical references (page 11).Lead oresIowaLead oresWisconsinZinc oresIowaZinc oresWisconsinLead mines and miningfastZinc mines and miningfastIowafastWisconsinfastLead oresLead oresZinc oresZinc oresLead mines and mining.Zinc mines and mining.Agnew Allen F.1918-2012,1386534Flint Arthur E.1913-Allingham John D.Geological Survey (U.S.),Wisconsin Geological and Natural History Survey.COPCOPOCLCOOCLCFOCLCAGPOBOOK9910711453303321Exploratory drilling program of the U. S. Geological Survey for evidences of zinc-lead mineralization in Iowa and Wisconsin, 1950-513435523UNINA