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U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
A weathered gray rock stands like a pillar, placed by an ancient civilization for purposes unknown to us today.
Public Domain. Photo by Mat Leffler-Schulman of FHWA
Download Original (1312 x 2000 pixels, 841.4 KB)
