Born-Digital or AnalogAnalogTranscriptEmma mountain mining company Activities, Sidney vein, Ouray district, Colorado. R. M. News. Oct. 5, 1882. p.2 0.3 Runs cross-cut to top Stanley lode vein, Colorado. R. M. News. Nov. 19, 1881 p.3 c.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Emma mountain mining company, [239178]. Denver Public Library Digital Collections, accessed 21/01/2026, https://digital.denverlibrary.org/nodes/view/1483328
