Mines and mineral resources. Colorado Gold yield. obtained from quartz; number quartz mines operating; mint. R.M. News. May 1, 1862 p.2 c.3 Gold yield, 1859-1861.R.M. News. May 3, 1862 p.2 c.4 Miners troubled by Snake Indians. R.M. News. May 22, 1862 p.2 c.1 Prospects, dists; list. R.M. News. May 26, 1862 p.2 c.1 Prospecting party on Gold belt. R.M. News. May 31, 1862 p.2 c.l Activities; rush of 1859. R.M. News. June 6, 1862 p.2 c.l
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