Mines and mineral resources. Colorado.,Lake co. Gulch mining;Printer boy active;Yankees blade co. idle. R.M.News. Oct. 21,1871 p.2 c.l Number of mines;idle;ore treatment. R.M.News. Jan. 15,1874 p.4 c.2 History, mines; & gulches; list. R.M.News. Mar. 1,1874 p.4 c.4 Estimated gold production;Iowa gulch placer mines. R.M.News. -pr. 21,1874 p.4 c.2 Activities, lodes & gulches; list. R,M.News. June 4,1874 p.4 c.1 Activities, Printer boy lode. R.M.News. Aug. 27,1874 p.4 c.4
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