Mills and company File notice f or patent, placer lands, Columbia mining DISTRICT COLORADO R. M. News. Oct. 4, 1873. p.2 c.4 Activities, Park county, Colorado. R. M. News. June 4,1873 p.4 c.3 Sluice miners, Fairplay, Colorado. R. M. News. Tune 13,1875 p.4 c.6
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