#26163: Cahokia Mounds State Historic Site
Public Domain. Photo by Lyle Kruger
Download Original (3498 x 2383 pixels, 1907.3 MB)
U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Public Domain. Photo by Lyle Kruger
Download Original (3498 x 2383 pixels, 1907.3 MB)