Tin cup mine. Tin cup district Colorado Transfer to Bald mountain mining company. R. M. News. Feb. 22, 1880. p.8 c.6 Development. R. M. News. Dec. 10, 1880. p.2 c.2 Production. R. M. News. Aug. 1, 1882. p.2 c.7 R. It".. News. 3ept. 4, 1882. p.8 c.4 Rich ore. R. M. News. Tan. 10, 1882 p.3 c.1 Mentioned. R. M. News. July 18, 1884 p.6 c.1 Ore sampling. R. L. News. Aug. 6, 1884 p.6 c.2
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