Silver islet mine. Pitkin DISTRICT COLORADO Description. R.M.News.Sept.19,1879.p.2 c.1 Active. R.M.News.July 11,1880.p.2 c.1 Description. R.M.News.Oct.1,1879. p.2 c.2 Description; assay. R.M.News.Nov.27,1879. p.2 c.1 Description. R.M.News.Nov.29,1879. p.2 c.1 Description; transfer. R.M.News.Dec.5,1879. p.8 c.3 Description. R.M.News.Aug.18,1880. p.6 c.2 Development. R.M.News.Sept.24,1880.p.6 c.1 Description; transfer. R.M.News.Jan.1,1880. p.14 c.1
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