Ontario mine. Breckenridge district colorado Development. 1884 Proposed h.r'. YeK-a. May 31, 1884 p.6 c.1 Ore strike. R.11. News. Aug. 19, 1886 p.6 c.1 Character of ore. R.M. gems. Mar. 27, 1882 p.4 0.3 Character of ore; activities. -R -M. News. Jan. 25, 18E? 0 P 3 c.1
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