Mines & mineral resources. Colorado. Alma district Discoveries, Silver Heels mountain; list of mines; Buckskin district. R. M. News. Aug. 19, 1880. p.2 c.l Early history. R. M. News. Mar. 2, 1880. p.5 c.l Rival, Mt. Lincoln, 1872-1874; transportation; bogus claims. R. M. News. Mar. 18, 1880. p.8 c.5 Discoverers of placer claims. R. M. News. Mar. 23, 1880. p.5 c.2 Transfer of mine; amount. R. M. News. Oct. 13, 1880. p.3 c.3i
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