Born-Digital or AnalogAnalogTranscripttunnels New rock melter can tunnel. through rocks, using extreme- ly bot molybdenum.. Post N 1., 1973 , p.30 RMN N 1., 1973 p.1.0 Central Pacific Railroad tunneling through the Sierras in 1860s. Frontier Times v.53 #6 0-N 1979 p.18-20, 46-47 Beavertail Tunnels in DeBeque Canyon ok'd. RMN Mr 6, 1985 p.14 Levent Adzemir is world expert on building tunnels. RMN 0 2, 1988 p.30,32CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
