Born-Digital or AnalogAnalogTranscriptPhiladelphia lode. Colorado Proposed development very promising herring mountain R.M. News. June 2, 1881 p.3 c.2 Operations resumed; location; development. R.M. Nevis. June 8, 1881 p.4 c.8CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Philadelphia lode. Colorado, [485572]. Denver Public Library Digital Collections, accessed 19/01/2026, https://digital.denverlibrary.org/nodes/view/1409263