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U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Around 1200 AD, thousands of stones were piled to form this "D" shaped tower, a form not seen often in the Four Corners region. The builders of the towers at Hovenweep used this shape, along with square and round towers.
Public Domain. Courtesy of National Park Service, Hovenweep National Monument
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