Born-Digital or AnalogAnalogTranscriptGilpin county, Colorado Production of mines, 1878. History of progress, 1878. Mills; mining activities. 1879. p.2 c.5 1879. p.2 c.5 R. M. News. June 27, 1868. p.2 c.1 Description. R. M. News. Nov. 4, 1868. p.l c.2 Mining facts and figures, 1875. R. M. News. Jan. 6, 1876. p.4 c.4CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Gilpin county, Colorado, [272391]. Denver Public Library Digital Collections, accessed 07/12/2025, https://digital.denverlibrary.org/nodes/view/1476072
