Mines and mineral resorces. Colorado. Activities, mines; companies; list. Republican . Feb. 23, 1881 p.2 c.2 Companies filing articles; list. Rep. Feb. 25, 1881 p.4 c.5 Professor Smith's report, 18?9-1880. Rep. Feb. 24, 1881 p.4 c.l Companies incorporating & filing articles; list. Rep. Feb. 24, 1881 p.4 c.2 Companies incorporating; list. Rep. Mar. 1, 1881 p.4 c.3
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