Born-Digital or AnalogAnalogTranscriptCoal Walsenburg district colorado Daily production. 1880. p.8 e.3 Denver 8c Rio Grande co. develops property. R. M. News. Nov. 16, 1877. p.4 c.1 Daily output, tons. R. M. Output,1881. . coal & iron co. x. M 1882 p-3 c.1 mentioned. Ness. Aug.1:1883 p.1 c.3 iCollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Coal Walsenburg district colorado, [181688]. Denver Public Library Digital Collections, accessed 10/12/2025, https://digital.denverlibrary.org/nodes/view/1525902
