Born-Digital or AnalogAnalogTranscriptHumbolt mine, Red mountain district colorado humboldt Owners named; good ore; locationMN INDEX R.M News. Feb. 27, 1853 p.2 C.1 Owners named; description; assay. R.A".News. Plar. 31, 1993 p.3 c.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Humbolt mine, Red mountain district colorado humboldt, [324133]. Denver Public Library Digital Collections, accessed 13/02/2026, https://digital.denverlibrary.org/nodes/view/1455479
