Born-Digital or AnalogAnalogTranscriptMackey-Burroughs mine. Gilpin county. Colorado. Developments; milling; value of smelting iron. Rep. Oct. 29, 1881 p.6 c.2 Sale of smelting iron; value. Republican . Nov. 19, 1881 p.6 c.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
