Mines and mineral resources. Colorado. Trail creek district Activities, lodes; list; mills; organized, 186Q-. R.M. News. Mar. 18, 1861 p.2 c.l History; erecting mills; lodes; list. R.M. News. June 4, 1861 p.2 c.2 Steam quartz mills working. R.M. Nevis. Aug. 5, 1861 p.3 c.l Activities, lodes; list; milling. R.M. News. Oct. 7, 1861 p.2 c.6 Agency appointed to discover claims; history. R.M. News. Nov. 12, 1861 p.2 c.4
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