Born-Digital or AnalogAnalogTranscriptCoal. Colorado Nine coal plants planned for northwest Colorado. 1977 p.20 Effect on state of Interior Secretary Andrus' withdrawal of local authority to issue leases for mining on federal lands. 1977 P 8 Lengthy coal trains through Denver will cause highway and environmental problems. Post F 27, 1977 p.21 Underground mines collapsing causing environmental damage and eyesores. Post Mr 13, 1977 p.20 0CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
