Born-Digital or AnalogAnalogTranscriptleona mine. Pitkin county, Colorado Description; assays, Conundrum gulch. R. M. News. July 5, 1882 p.7 c.2 Description, Conundrum gulch. R. M. News. Aug. 5, 1882 p.2 c.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
leona mine. Pitkin county, Colorado, [376140]. Denver Public Library Digital Collections, accessed 14/07/2025, https://digital.denverlibrary.org/nodes/view/1480072
