Born-Digital or AnalogAnalogTranscriptRocky mountain mining exchange Opened for business, Central City, Colorado R. M. News. Nov. 17, 1880 p.3 c.1 Opened office, Central City, 0010 R. M. News. Nov. ;0, 1880 p.3 c.1 Sells property, Black Hawk district , Colo. R. M. News. Mar. 23, 1881 p.2 c.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
