#36750: Old Man Rock Geologic Formation
Public Domain. Courtesy of Ron Murphy of the USFS
Download Original (2345 x 3560 pixels, 6771.5 MB)
U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Public Domain. Courtesy of Ron Murphy of the USFS
Download Original (2345 x 3560 pixels, 6771.5 MB)