Mines and mineral resources. Colorado Estimated number of mines worked. R.M.News. Nov.12,1881 p.8 c.2 Estimated number of mines working. R.M.News Nov.17,1881 p.2 c.2 Mount Carbon coal, mining and land co.in litigation. R.M.News. Nov.17,1881 p.6 c.3 Chicago mining co. advocates change in law; plan. R.M.News. Nov.18,1881 p.2 c.2 Activities, various camps. R.M.News. Nov.19,1881 p.3 c.2 Companies incorporating; list. R.M.News. Nov.20,1861 p.6 c.1
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