Big Pittsburg mine. Leadville district. Colorado. Production. Republican . Apr. 9, 1881 p.2 c.1 Developments near Hibernia mine . 1881 p.2 c.2 History; development; grade of ore; list. . Rep. Apr. 20, 1881 p.2 c.1 Survey. Rep. May 3, 1881 p.1 c.4 Controversy over a portion.Rep. June 25, 1881 p.6 c.1 Division of profits. Rep. July 3-1., 1881 p 6 c.l Mineral 3n 'both shafts. Rep. July 11, 1881 p.6 c.1 Ore tapped, Stray Horse shaft; Lent shaft operating. Rep. July 12, 1881 p.6 c.1 s
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