Born-Digital or AnalogAnalogTranscriptCoal : Silverton district colorado Extensive coal fields; proposed road. R. M. News. June 23, 1877 p.4 c.4 Discovery of deposits; location. daily output. R. M. News. Dec. 27, 1882 p.2 c.2 0CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Coal : Silverton district colorado, [181640]. Denver Public Library Digital Collections, accessed 28/03/2025, https://digital.denverlibrary.org/nodes/view/1525846
