Born-Digital or AnalogAnalogTranscriptMammoth mine. Tomichi district. Colorado. Ore same as Gray Copper. Republican . Apr. 6, 1882 p.6 c.1 Assay. Rep. June 11, 1882 p.10 c,4 Development. Rep. June 27, 1882 p. 6 c.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
