01826oam 2200553 450 991071142390332120181016101159.0(CKB)5470000002483805(OCoLC)953266686(OCoLC)995470000002483805(EXLCZ)99547000000248380520160708d1951 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierVirgin Valley opal district, Humboldt County, Nevada /by M.H. Staatz and H.L. Bauer, JrWashington, D.C. :United States Department of the Interior, Geological Survey,1951.1 online resource (7 pages) mapsGeological Survey circular ;142"This report concerns work done on behalf of the U. S. Atomic Energy Commission and is published with the permission of the Commission."CarnotiteNevadaHumboldt CountyOpalsNevadaHumboldt CountyUraniumNevadaHumboldt CountyCarnotitefastOpalsfastUraniumfastNevadaHumboldt CountyfastCarnotiteOpalsUraniumCarnotite.Opals.Uranium.Staatz Mortimer H(Mortimer Hay),1918-2004,1385974Bauer Herman L(Herman Louis),1925-Geological Survey (U.S.),U.S. Atomic Energy Commission,COPCOPOCLCOOCLCFOCLCAGPOBOOK9910711423903321Virgin Valley opal district, Humboldt County, Nevada3544628UNINA