Born-Digital or AnalogAnalogTranscriptmines mineral resources colorado San Luis park district Prospectors, 1864. R.M. News. Oct. 23, 1864 p.4 c.2 Colorado coal & icon 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 San Luis park district, [434416]. Denver Public Library Digital Collections, accessed 24/06/2025, https://digital.denverlibrary.org/nodes/view/1429151
