Born-Digital or AnalogAnalogTranscriptTunnels. colorado Bill signed by Roosevelt will aid Leadville tunnel. Post J1. 1943 p.29 Restoration started with condemnation proceedings for Leadville drainage tunnel. News 1343 p.10 U.S. plans to bore tunnels to drain Leadville mines. News S 27t43 p.5 Leadville drainage tunnel to be drilled. News D 5f43 p.5 U.S. lets contract for tunnel to drain Leadville ore area. Post D 5.43 p.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng