Born-Digital or AnalogAnalogTranscriptCoal. Wyoming Coal output picking up; 1973 production estimated at 15 million tons. Post Mr 25, 19'73 p.1G, 4G Atlantic Richfield announces plans to begin strip mining coal in Campbell County, Wyoming. Post Ap 8, 1973 p.14E Coal rush may begin in summer of 1974. Post Ja 20, 1974 p.33 Goal boom hits Johnson County. Post Empire My 19, 1974 p.10-15 Sierra Club calls attention to study showing coal from Wyoming high in sulphur content. Post 0 3, 1974 p.42 0CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng