01873oam 2200529 450 991070995760332120180830074107.0(CKB)5470000002474690(OCoLC)962373982(OCoLC)953290002(OCoLC)995470000002474690(EXLCZ)99547000000247469020161105d1954 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierRadioactivity reconnaissance of part of north-central Clear Creek county, Colorado /by John D. Wells and Jack E. HarrisonWashington, D.C. :United States Department of the Interior, Geological Survey,1954.1 online resource (ii, 8 pages) illustrations, mapsGeological Survey circular ;345"This report concerns work done on behalf of the U.S. Atomic Energy Commission ..."Includes bibliographical references (page 8).GeologyColoradoClear Creek CountyRadioactive substancesColoradoClear Creek CountyGeologyfastRadioactive substancesfastColoradoClear Creek CountyfastGeologyRadioactive substancesGeology.Radioactive substances.Wells John David1926-1386524Harrison Jack Edward1924-Geological Survey (U.S.),U.S. Atomic Energy Commission,OCLCEOCLCECOPOCLCFOCLCQOCLCAGPOBOOK9910709957603321Radioactivity reconnaissance of part of north-central Clear Creek county, Colorado3505412UNINA