Born-Digital or AnalogAnalogTranscripttunnels. Colorado Famous Colorado tunnels. News, June 3, 1934, p. 3 Notable tunnels in Colo. Colo.Yearbook. 1943 - 1944. p.50. (Vacation sec.) Toll tunnel plan gets first approval. Post Feb. 17, 1955 Big Ed to speed Washington trip for promotion of tunnel. Post May 17, 1956 p.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
