Born-Digital or AnalogAnalogTranscriptHarkaway mine. Gilpin county, Colorado Activities; mill and machinery. R. M. News. Dec. 23, 1879. p.2 c.l Company forming to develop, Negro hill. R. M. News. Feb. 28, 1879. p.4 c.5 Assay; value. R. M. News. Apr. 2, 1879. p.4 c.4CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Harkaway mine. Gilpin county, Colorado, [295554]. Denver Public Library Digital Collections, accessed 17/06/2025, https://digital.denverlibrary.org/nodes/view/1380720
