Born-Digital or AnalogAnalogTranscriptrocky mountain mine developing company Incorporates to operate, San Juan county. Colorado Republican denver . Au7. 30, 1881 p.8 c.4 Operator Green mountain copper lode, Fremont co. Colo. Rep. Jan. 16, 1882 p.6 c.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
