Born-Digital or AnalogAnalogTranscriptMines and mineral resources. Colorado. South Platte district Specimens; mines; list. ^^EX R.M.News May 22,1883 p.3 c.3 Crystals & amethyst specimens. R.M.News.May ].8,1861 p.3 c.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Mines and mineral resources. Colorado, [435214]. Denver Public Library Digital Collections, accessed 14/12/2025, https://digital.denverlibrary.org/nodes/view/1430245
