CG-20 World Aeronautical Chart

Aeronautical map of the central United States, or region "CG-20", showing cities, roads, and topographical features, as well as aeronautical and radio frequency symbols for flight navigation. Various pencil notes are written on the map's margins. Scale 1:1,000,000
Date: March 2, 1972
Creator: United States. Department of Commerce.
System: The Portal to Texas History

Denver Sectional Aeronautical Chart, 6th Edition

Aeronautical map of a four state region consisting of Utah, Arizona, New Mexico, and Colorado that shows topographical features, ranch lands, national parks, and various aeronautical symbols for flight navigation. An enlarged portion of the map in the bottom left corner shows a closer look at Denver, Colorado and its surrounding cities. Scale 1:500,000.
Date: March 2, 1972
Creator: United States. Department of Commerce.
System: The Portal to Texas History

Wichita Sectional Aeronautical Chart

Aeronautical map of a four state region consisting of Kansas, Colorado, Nebraska, and Oklahoma that shows cities, topographical features, flight training areas, and various aeronautical symbols for flight navigation. A large portion of Kansas and its cities make up most of the map. Scale 1:500,000.
Date: December 7, 1972
Creator: United States. Department of Commerce.
System: The Portal to Texas History