#57368: Interpretive Signs Looking at Wind Caves
Public Domain. Photo by Dennis Adams of FHWA
Download Original (484 x 754 pixels, 366.5 KB)
U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Public Domain. Photo by Dennis Adams of FHWA
Download Original (484 x 754 pixels, 366.5 KB)