Born-Digital or AnalogAnalogTranscriptEuropean and American tunnel, company Incorporation, Gilpin county, office, Denver. R.M.News. Dec. 31, 1882 p.3 c.3 Lets contract for tunnel. R.M.News. Feb. 11, 1883 p.3 c.2 Operations, Golden Belt tunnel., Black Hawk diet, Colo. R.M.News. Jan. ?, 1883 p.3 c.3 Let contract, drive tunnel, Black Hawk district colorado R.M.News. Feb. 11, 1883 p.3 c.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
European and American tunnel, company, [242267]. Denver Public Library Digital Collections, accessed 12/02/2026, https://digital.denverlibrary.org/nodes/view/1489643
