Born-Digital or AnalogAnalogTranscriptMining. Accidents. Colorado Story of mining accident at New Castle, D 16, 1913 which killed 37 miners. Post Empire D 19, 1971 p.12,13 Investigation begins into the deaths of 2 miners at American Smelting and Refining Company's Black Cloud Mine. Post Ja 19, 1974 p.3 2 Redstone, Colorado coal miners are suffocated. RMN My 30, 1975 p.34 Mine accidents in the past four weeks in Colorado to be probed. Post Je 23, 1975 p.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
