Born-Digital or AnalogAnalogTranscriptMines & mineral resources, Colorado Clear Creek county Mentioned. R. M. News. July 13, 1879. p.4 c.1 Collection of specimens. R. IBC. News. July 16, 1879. p.2 c.1 Description; activities, Peru district. R. M. News. July 30, 1879. p.2 c.1 Development. R. M. News. July 30, 1879. p.5 c.1 Development of mines. R. M. News. July 30, 1879. p.5 c.1 Activities; prospecting, York district. R. M. News. Apr. 22, 1880. p.3 c.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Mines & mineral resources, Colorado Clear Creek county, [427699]. Denver Public Library Digital Collections, accessed 13/05/2025, https://digital.denverlibrary.org/nodes/view/1419954
