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U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
The towering, ancient trees in the Pioneer Mothers Forest have a heavy green canopy of leaves between which sunlight filters through.
Public Domain. Photograph by Teena Ligman
Download Original (2128 x 2832 pixels, 4552.7 MB)
