Mines and mineral resources. Colorado. Idaho Springs district Barnes' strike; description. R.M. News. Oct. 18, 1883 p.2 c.3 Activities, mines; list. R.M. Nears. Nov. 1, 1883 p.3 c.4 New strike, Buttermilk gulch; mines; list. R.M. Nevis. Nov. 4, 1885 p.6 c.5 Activities, mills; companies; mines; list. R.M. Nevis. Nov. 25, 1883 p.3 c.2 production Squirrel gulch; rich strike. Fall river. R.M. News. Deb. 2, 1883 p.3 c.2
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