Ohio's only national park is accessible and ... There are no graves inside this effigy mound (a term used for those shaped ...

Experts have identified the natives responsible for these mounds as, simply put, effigy mound builders of the woodlands people. They thrived on Madison’s ancient oak savannah, which has long since ...

Serpent Mound is a National Historic Landmark located in Adams County, Ohio. This prehistoric effigy mound is shaped like a serpent and is over 1,300 feet long. The mound was built by the Native ...