Born-Digital or AnalogAnalogTranscript-Express mining company Development, Silver mt. Colorado. 1884 p. 2 c.4 Tunnel work, Silver mt. Ashcroft district. Colo. R.U.News. July 3, 1885 p. B c.2 Management of mines; working force large, Ashcroft list. R.M.News. Nov. 11, 1885 p. 6 c.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
