Born-Digital or AnalogAnalogTranscriptMines & mineral resources, Colorado Central city district Al Development, mines; list; activities, Russell gulch & Bald mountain. R. M. News. Mar. 16, 1881 p.3 c.l Development, Egyptian mine. R. M. News. Mar. 16, 1881 p.2 c.2 Activities, explosive test; mines & co s., list. R. M. News. Mar. 24, 1881 p.2 c.3 Ellery lode, assays; Belden & Tennel tunnel activit- ies. R. M. News. Feb. 5, 1876 p.4 c.2 Activities, Ophir-Burroughs & Fagan-Kansas mines. R. M. News. Mar. 4, 1876 p.4 c.3 February gold mill shipments; value. R. M. News. Mar. 11, 1876 p.4 c.lCollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Mines & mineral resources, Colorado, [427249]. Denver Public Library Digital Collections, accessed 14/02/2026, https://digital.denverlibrary.org/nodes/view/1419260
