Born-Digital or AnalogAnalogTranscriptRara avis mine. Central City district Colorado Activities, Whitney tunnel. R. M. News. Oct. 12, 1882. p.3 c.1 Activities; proposed development. R. M. News. Mar. 22, 1881. p.2 c.1 Activities; assays; list. R. M. News. Sept. 22,1881 p.7 c.1 Mentioned. R. M. News. Nov. 16, 1882 p.2 c.1 Proposed operations. R. M. News. Sept. 17, 1884 p.3 c.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Rara avis mine. Central City district Colorado, [514291]. Denver Public Library Digital Collections, accessed 16/03/2026, https://digital.denverlibrary.org/nodes/view/1747889
