Born-Digital or AnalogAnalogTranscriptmines mineral resources colorado South Arkansas district Extensively developed iron mines. Poi R.M. News. Feb. 2, 1882 p.3 c.3 Colorado coal & iron co. coal development; daily output. R.M. News. Mar. 28, 1882 p.3 c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
mines mineral resources colorado South Arkansas district, [435182]. Denver Public Library Digital Collections, accessed 07/07/2025, https://digital.denverlibrary.org/nodes/view/1429560
