This map depicts the corridor for flight navigation between Salt Lake City, Utah, and Elko, Nevada, including major urban areas, roads, railroads,... Show moreThis map depicts the corridor for flight navigation between Salt Lake City, Utah, and Elko, Nevada, including major urban areas, roads, railroads, etc., and the location of airfields and navigation beacons. It was compiled and produced at the Engineer Reproduction Plant, U.S. Army, Washington D.C., under the direction of the Information Division, Office Chief of the Air Corps in 1930, and revised in 1932. Show less