00926cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040001900111042001200130050002300142100004300165245010700208260005600315300007500371410004700446500003100493650002300524650004300547700006500590999001700655gs 18000076 DLC20260227111322.0760409s1916    xx            000 0 eng    ags 18000076   a(OCoLC)2104932  aDLCcTxEUdDLC  apremarc00aTN24.C6bC8 no. 101 aCrawford, R. D.q(Ralph Dixon),d1873-10aGeology and ore deposits of the Gold brick district, Colorado,cby R. D. Crawford and P. G. Worcester.  aDenver, Colo.,bEames bros., state printers,c1916.  a116 p.billus., IX pl. (part fold., incl. maps) plans, diagrs.c24 cm.20aColorado Geological Survey.tBulletin,v10  aMaps and 1 plan in pocket. 0aGeologyzColorado. 0aMines and mineral resourceszColorado.1 aWorcester, Philip G.q(Philip George),d1884-ejoint author.  c25820d25820