Big Pittsburg mine. Leadville district. Colorado. Grade of ore, Lent & Stray horse shafts. Republican . July 14, 1881 p.6 c.2 Mentioned. Rep. July 15, 1881 p.6 c.2 Ore body extension. Rep. Aug. 30, 1883 p,3 c.l Mentioned. Rep. Sept. 8, 1881.p.5 c.l Ore strike, Olathe. Rep. Sept.28, 1881 p.2 c.1 Developments; iron strike, Carbonate hill. Rep. Sept.30, 1881 p.2 c.1 Water trouble, Heystrosser shaft. Rep. Oct. 24, 1881 p.fi c.l 0
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