The site is owned by the Ohio Historical Society and managed by the National Park Service. Admission is free.
The other Hopewell Culture sites are:
There is a sixth local site: 240-acre Spruce Hill, west of Chillicothe. The hilltop earthwork is owned by the Arc of Appalachia Preserve and the Ross County Park District. It is managed by the U.S. Park Service.
The term Hopewell describes a broad network of economic, political and spiritual beliefs and practices among different Indian groups over a large portion of the eastern United States.
The Indians hunted, fished and gathered wild foods. They lived in villages of small huts made of wood and covered with animal skins or bark. They did not live around the mounds.
The people were part of a wide-ranging trade network that extended to North Carolina for mica, to Wyoming for obsidian, to the Great Lakes for copper and silver and to the Atlantic and the Gulf of Mexico for shells and shark's teeth. They disappeared about 1,500 years ago.
Mound City has a varied history. During World War I, the U.S. Army built Camp Sherman there with more than 2,000 buildings and up to 35,000 troops.
Railroad tracks to the camp ran atop the mounds closest to the Scioto River.
Most of what you see at Mound City has been reconstructed from detailed maps drawn in 1846 by Ephraim G. Squier, a Chillicothe newspaper editor, and Edwin H. Davis, a local physician.
In 1923, the Mound City Group was declared a national monument. In 1992, it became the Hopewell Culture National Historic Park.
The visitor center is open from 8:30 a.m. to 5 p.m. daily in the fall, winter and spring, to 6 p.m. from Memorial Day to Labor Day. The grounds are open dawn to dusk daily. Admission is $2 per person or $4 per vehicle.
For more information, contact the Hopewell Culture National Historic Park, 16062 State Route 104, Chillicothe, OH 45601, 740-774-1126, www.nps.gov/hocu.
Nine Hopewell sites and the Serpent Mound State Memorial in Ohio are included in the U.S. Department of the Interior's nomination to become U.N. World Heritage sites.
There is another more-modern historical attraction in Chillicothe: Adena Mansion and Gardens. It was the home of Thomas Worthington, the father of Ohio statehood and Ohio's sixth governor and a U.S. senator. It is operated for the Ohio Historical Society by the Adena Mansion and Gardens Society.
It includes the mansion with 20 rooms, three halls and 16 fireplaces, formal and working gardens, an orchard, estate buildings and a museum.
In its time, Adena -- it comes from the Hebrew word for pleasure -- was a 2,000-acre estate. The mansion was completed in 1806-07. Visitors included President James Monroe, Gen. William Henry Harrison and Sen. Henry Clay of Kentucky.
Hours: 9 a.m. to 5 p.m. Wednesday through Saturday and noon to 5 p.m. Sunday from April through October. Admission is $8 for adults and $4 for students with children 5 and under free. For information, call 740-772-1500 or 800-319-7248.
You can also get tourist information at 740-702-7677, 800-413-4118, www.visitchillicotheohio.com.