01273cam a22003251  4500001001300000003000400013005001700017008004100034010001700075035001900092040002600111042001200137050002500149082001600174100003400190245014100224260004800365300004700413490004400460500005000504500006100554504002800615650005500643650005000698650006500748700004400813710003500857830003800892999001700930gs 65000368 DLC20260227111417.0780722s1966    dcuab    b   f000 0 eng    ags 65000368   a(OCoLC)4075583  aDLCcOClUdOCoLCdDLC  apremarc00aTN24.C6bM6 no. 1208  a553.09788611 aMoench, Robert Hadley,d1926-10aEconomic geology of the Idaho Springs district, Clear Creek and Gilpin Counties, Colorado,cby Robert H. Moench and Avery Ala Drake, Jr.  aWashington,bU.S. Govt. Print. Off.,c1966.  av, 91 p.billus., maps (part col.)c24 cm.1 aU.S. Geological Survey. Bulletin,v1208  aPart of illustrative matter folded in pocket.  aPrepared on behalf of the U.S. Atomic Energy Commission.  aBibliography: p. 89-91. 0aGeology, EconomiczColoradozIdaho Springs Region. 0aOre depositszColoradozIdaho Springs Region. 0aMines and mineral resourceszColoradozIdaho Springs Region.1 aDrake, Avery Ala,d1927-ejoint author.2 aU.S. Atomic Energy Commission. 0aGeological Survey bulletin.v1280  c30110d30110