Born-Digital or AnalogAnalogTranscriptmines mineral resources colorado san juan region History of prospecting. R. M. News. Aug. 5, 1877 p.4 c.5 Companies incorporating; list. R. W. News. Aug. 17, 1877 p.4 c.2 History & progress. R. 11. News. Aug. 21, 1877 p.4 c.5 Proposed sampling works for Summit district. R. M. News. Aug. 28, 1877 p.2 c.3 History; mines; list, Mineral City district. R. M. News. Sept. 6, 1877 p.4 c.6CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
mines mineral resources colorado san juan region, [434316]. Denver Public Library Digital Collections, accessed 16/12/2025, https://digital.denverlibrary.org/nodes/view/1427520
