Born-Digital or AnalogAnalogTranscriptBoulder county lode. Grand Island district. Colorado. Ore specimens. R. N. News. Aug. 9, 1870. p.4 c.1 Tunnel proposed. 8. M. News. j ego . 4,1871 p,.4 c,.5 Needs developing. Description; yield.B Ore display; values annual fair. Denver. 0CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Boulder county lode. Grand Island district. Colorado, [27645]. Denver Public Library Digital Collections, accessed 18/02/2026, https://digital.denverlibrary.org/nodes/view/1186312
