The park is composed of four separate sites open to the public in Ross County, Ohio, including the former Mound City Group National Monument.

The culture is characterized by its construction of enclosures made of earthen walls, often built in geometric patterns, and mounds of various shapes.

Visible remnants of Hopewell culture are concentrated in the Scioto River valley near present-day Chillicothe, Ohio.

The archaeologists Ephraim George Squier and Edwin Hamilton Davis were the first excavators of the site and amassed a large collection of Mound artifacts that is now preserved at the British Museum.

[4] Much of it was destroyed during World War I when the United States Army constructed a military training base, Camp Sherman, on the site.

Hopeton Earthworks located across the Scioto River from Mound City and High Bank Works, which is closed to the public.

These provide insight into the sophisticated and complex social, ceremonial, political, and economic life of the Hopewell people.