Born-Digital or AnalogAnalogTranscriptBrittle silver mine. Pitkin district. Colorado. Daily production; capitalists operating. R. M. News. July 11, 1882 p.2 c.1 Owned by capitalists; daily production. Operating; increase in force. , 1884 p.6 c.1 Strike. Ore tested. New strike. Development.CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Brittle silver mine. Pitkin district. Colorado, [71621]. Denver Public Library Digital Collections, accessed 12/11/2025, https://digital.denverlibrary.org/nodes/view/1283910
