MINES AND MINERAL RESOURCES, COLORADO. MINERAL Point dist. Proposed concentrator; machinery; management; 016 Lot mine activities. R.M. News. May 13, 1884 p.6 c.2 Concentrator under constructioh. R.M. News. Oct. 30, 1884 p.6 c.1 Estimated production. R.M. News. Jan. 19, 1885 p.6 c.1 Trial ore tests, mines; list. R.M. News. Sept.22, 1885 p.6 c.1
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