mines mineral resources colorado san juan region Map issued. R. Y. News. Apr. 29, 1875 p.4 c.l Claim jumping, Poughkeepsie & Dolphin mines. R. M. News. June 4, 1875 p.4 c.4' Transfer, Caribou mine, Summit district R. M. News. June 13, 1875 p.4 c.6 Agent advertises San Juan mines & ores. R. M. News. June 29, 1875 p.l c.4 Development; wages; ore market. R. M. News. June 30, 1875 p.4 c.3 Silver mines profitable enterprise; difficulties. R. M. News. July 15, 1875 p.2 c.2 History. R. M. News. July 20, 1875 p.4 c.3
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