Born-Digital or AnalogAnalogTranscriptManhattan mining company Incorporation, Leadville district, Colorado. R.M.News.July 7,1880. p.1 c.5 Developments. Idaho Springs district colorado R.M. Fens. -^eu. 21, 1962 p.7 c.3 Crosby & Thompson process a failure, Black Hawk diet. Colo. R.M. News. July 10, 1866 p.2 CA Prepares for leith furnace; description, Gilpin co. Colo. R.i4. News. May 25, 1966 p.1 c.?CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
