Mines & mineral resources. Colorado. Clear Creek county Mines; companies; mills, Red elephant mountain. Vickers. Clear Cr.& Boulder. p.326 Mines; lodes; mills, Silver mountain. Vickers.Clear Cr.& Boulder. p.327 Mines, lodes, empire district. Vickers.Clear Cr.& Boulder. p.328 Mining industry; development, Empire, Colorado. Vickers.Clear Cr.& Boulder. p.329
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