Oak Mounds

The Oak Mounds is a large prehistoric earthwork mound, and a smaller mound to the west. They are located outside Clarksburg, in Harrison County, West Virginia. ==Mounds== These mounds have never been totally excavated but they were probably built between 1 and 1000 CE by the Hopewell culture mound builders, prehistoric indigenous peoples of easter...
Found on http://en.wikipedia.org/wiki/Oak_Mounds
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