Mines and mineral. resources. Colorado. Gilpin county. Mines; list; total production, 1882. R.M. News. Jan. 4, 1884 p.3 c.2 Deep mines; production, mines; list. R.M. News. Jan. 4, 1884 p.7 c.1 Number of stamps running; mills. R.M. News. Jan. 5, 1884 p.5 c.3 Activities, mines, mills, cos.; list, Central City and Black Hawk lists. R.M. News. Jan. 9, 1884 p.3 c.2 Activities, mines, Central City & Black Hawk discs. R.M. News. Jan. 19, 1884 p.3 c.1
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