Mines and mineral -resources. Colorado. Tin Cup district. Activities, Tin Cup, Gold Cup & Ontario mines. Republican . Feb. 16, 1881 p.2 c.2 Activities, mines; list. Rep. Feb. 26, 1881 p.2 c.2 Bald mountain mining. co. relieved of debt by syndicate. Rep. Aug. 4, 1881 p.2 c.2 History, Bald mt. min. co. Rep. Aug. 4, 1881 p.2 c.2 Ore display, mines; -list, Colo. Industrial. Exposition., Denver. Rep. Sept.16, 1881 p.5 c.2 Rep. Sept.17, 1881 p.4 c.5 Activities, mines; companies; smelter. Rep. Oct. 9, 1881 p.6 c.l
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