01206cam a22002891i 4500001001300000003000400013005001700017008004100034010001700075035001900092040003100111042001200142050002500154086001700179100003900196245013100235260004900366300010500415410005700520500006400577504003100641650005500672650005100727650006500778740005600843999001700899gs 63000299 DLC20260227111413.0780407s1963    dcuabd   b   f000 0 eng    ags 63000299   a(OCoLC)3787845  aDLCcOClUdISSdOCoLCdDLC  apremarc00aTN24.C6bS48 no. 3590 aI 19.16:359/1 aSims, P. K.q(Paul Kibler),d1918-10aEconomic geology of the Central City District, Gilpin County, Colorado /cby Paul K. Sims, A. A. Drake, Jr., and E. W. Tooker.  aWashington :bU.S. Govt. Print. Off.,c1963.  ax, 231 p. :bill., maps (part col.) diagrs., tables and portfolio (fold. maps (part col.)) ;c29 cm.20aGeological Survey (U.S.).tProfessional paper ;v359  a"Prepared on behalf of the U. S. Atomic Energy Commission."  aBibliography : p. 226-228. 0aGeology, EconomiczColoradozCentral City District 0aOre depositszColoradozCentral City District. 0aMines and mineral resourceszColoradozCentral City District4 aThe Central City District, Gilpin County, Colorado.  c29748d29748