Born-Digital or AnalogAnalogTranscriptTunnels. Colorado In Leadville drainage tunnel 800 feet separate end and rich ore bodies. Post Je 24 1947 p.24 James Boyd asks Leadville tunnel completion. Post Mr 29 1949 p.33 1950 Funds ok'd for Leadville tunnel in Colorado. Post Jl 9 '49 p.16 r?ews Jl 14 149 p.29 Alva B. Adams tunnel power line to link 2 slopes. Post Ja 1 150 p.6 Leadville bore contract let. Post Ag 16 '50 p.1 Historic Argo tunnel, mill sale revealed. -Post Ag 20 150 p.2CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
