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U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
The photo shows the granaries as well as the distinctive doorways of Horsecollar Ruin, named because the doorways look like collars used on horse harnesses. Notice the large stones used as a "foundation" under the smaller stones.
Public Domain. Courtesy of National Park Service, Natural Bridges National Monument
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