Born-Digital or AnalogAnalogTranscriptUnion mine. Ohio City DISTRICT COLORADO Owner; silver assays. R. M. News. June 3, 1880 p.3 c.2 Description; assay. R. M. News. Jan. 10, 1882 p.3 c.1 Development; assays; caharacter of ore. R. M. News. Feb. 1P 1882 p. 2 c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Union mine. Ohio City DISTRICT COLORADO, [615243]. Denver Public Library Digital Collections, accessed 07/02/2026, https://digital.denverlibrary.org/nodes/view/1742997
