Air navigation map 11 (experimental) : Omaha to North Platte, Nebraska
Air navigation map [11] (experimental) : Omaha to North Platte, Nebraska. Prepared under the direction of the Airways Section of the Chief of Air Service by the Topographic Branch, U.S. Geological Survey. 1925. Engineer Reproduction Plant, U.S. Army, Washington Barracks, D.C. 6068-11. 1925. -- Air navigation map [12] (experimental) : North Platte, Neb. to Cheyenne, Wyo. Compiled and reproduced by the Engineer Reproduction Plant, Corps of Engineers. Under the direction of the Airways Section, Office Chief of Air Service. 1925. Engineer Reproduction Plant, U.S. Army, Washington Barracks, D.C.
David RumseyFord Motor Company
1925
1930
Ford Motor Company
1:500 000