United States Highway Map, February 1968
The United States as the Interstate system expanded at a torrid pace, captured in National Geographic’s layered, artistic cartography.
- Published: February 1968
- Edition: an update to National Geographic’s July 1961 United States map
- Road network: the Interstate system during its early build-out
History enthusiasts compare its highway network with today’s routes, and teachers use it to show how the Interstate era reshaped American travel. A framed copy also makes a good gift for a road trip fan.

