Bobtail company . Description of activities; assay, Black Hawk district., Colorado 1877 Activities; employees, Nevadaville district, Colorado. R.:M.News. Nov. 23,1875 p.4 c.3 Operating Bobtail mine, Gilpin county, Colorado. .1876 p.4 c.3 weeks run; Central City district, Colorado. 1878 p.4 c.3 Mine activities, Gilpin co. Colo. R.M.News. Apr.13,1882 p.3 c.1 0
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