Born-Digital or AnalogAnalogTranscriptSilTer cord combination mines. Leadville COLORADO Description; activities. R. M. News. July 31, 1880 p.3 c.1 Mentioned. R. M. News. Oct. 16, 1880 p.6 c.1 July output; Iron hill. R. M. News. Aug. 15, 1882 p.2 c.2 Located on Iron hill. R. M. News. Oct. 27, 1882 p.3 c.3 Monthly production value. R. M. News. Dec. 23, 1882 p.6 c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
