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U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Known as Inyun Bosndata by the Sioux Indians who consider it sacred, the four-foot tall rock is an inverted cone shape that stands on a complex of prehistoric burial mounds dating from the Woodland Period.
© 1999 Janet E. Schultz.
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