Born-Digital or AnalogAnalogTranscriptTunnels Homestake Project - diversion tube bore completed ibrougb the Continental Divide near Leadville Saturday. RMN S 26, 1965 p.32 Post S 26, 1965 p.4o Some of biggest tunnel-digging operations in Colorado, New Mexico. Post Ag 21, 1966 p.36-37 First water collection tunnel holed through in Frying Pan Arkansas project. Post Ap 2., 1967 p.44 New rock fall hits U.S. 6 tunnel in Clear Creek Canyon. Post D 14, 1969 P-55CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
