Fort Ancient
Fort Ancient
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Fort Ancient Earthworks and Nature Preserve

Fort Ancient is a series of earthen embankments that extend for more than three-and-a-half miles around a high bluff along the Little Miami River in Warren County, Ohio. It was built by the Hopewell culture between 100 B.C. and A.D. 400.

Although it is called a "fort," it probably never served as a defensive work. Ditches are located inside the walls rather than outside as might be expected if it was an actual fort. Also, there are more than 60 gateways in the enclosure, which would have made it difficult to defend against enemies.

Fort Ancient is a National Historic Landmark and is being considered for nomination for inscription on the UNESCO World Heritage List.

The site offers beautiful vistas along hiking trails as well as the remains of the marvelous ancient earthworks. Convenient picnic areas can be found along the road at the site.

The Museum at Fort Ancient contains 9,000 sq. ft. of exhibits, including many interactive units, focusing on 15,000 years of American Indian history in the Ohio Valley.

513-932-4421/800-283-8904

Fort Ancient is managed locally by the Dayton Society for Natural History.

April - November

Tuesday - Saturday: 10 - 5 p
Sunday: Noon - 5 p
Closed for major holidays

December - March

Monday - Friday: CLOSED
Saturday: 10 - 5 p
Sunday: Noon - 5 p
Closed for major holidays

Groups available by appointment.

Fort Ancient Earthworks and Nature Preserve
6123 St Rt. 350
Oregonia, Ohio 45054




View Fort Ancient State Memorial in a larger map

OHS Members  FREE
Dayton Society of Natural History Members FREE
Adults (museum & park)
$6
Seniors $5
Children (6-12)  $4
Children (5 & under)
 FREE
School groups $3
Guided Tours $4/student

Handicapped Accessibility:Ohio Historical Society strives to meet ADA requirements. However, historic structures and outdoor areas provide challenges that make it difficult to provide complete access to all visitors. Please call the site with specific questions and concerns.
Know Before You Go

Know Before You Go

Key things to do or see when you visit.

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History

History

Explore Fort Ancient's significance to Ohio history.

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Local Management

Local Management

Operated by the Dayton Society of Natural History.

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Interesting Facts

Interesting Facts

Learn more about the historic site.

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Collections & Exhibits

Collections & Exhibits

Discover some of the amazing collections on view at Fort Ancient.

Historic Buildings and Resources

Historic Buildings and Resources

Documentation of Fort Ancient's historic structures.

Dr Lepper and Letterman
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