Born-Digital or AnalogAnalogTranscriptMonitor mine. PARK county. Colorado. New discovery; assays; list; description, Horseshoe dist RepUBLICAN. Apr. 25, 1881 p.2 c.1 Also known as Grandview mine. Rep. July 6, 1881 p.7 c.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Monitor mine. PARK county. Colorado, [438631]. Denver Public Library Digital Collections, accessed 10/12/2025, https://digital.denverlibrary.org/nodes/view/1430448
