Mines mineral resources Colorado Ruby district Activities, mines; list. R.M.News. Oct.3,1881 p.3 c.l Famous. R.M.News. Nov.4,1881 p.6 c.l Mines; list. R.M.News. Nov.25,1881 p.7 c.2 Active mines; list. R.M.News. Nov.28,1881 p.6 c.l Activities, mines & list. R.M.News. Dec.4,1881 p.2 c.4 Mines; list. R.M.News. Dec.5,1881 p.2 c.2 Rubies found; value, Ruby mountain R.M.News. Dec.19,1881 p.7 c.1 Prophesies by Prof. Jacobs regarding formation. R.M.News. Dec.31,1881 p.5 c.1
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