Fort Jefferson Memorial Park

See the place where Fort Jefferson, an advance outpost of Gen. Arthur St. Clair, stood in the 1790s

Fort Jefferson Memorial Park

3981 Weavers-Fort Jefferson Road, Greenville, OH, USA
Mon-Sun: All daylight hours


The Ohio History Connection strives to meet requirements of the Americans With Disabilities Act. 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.
Everyone - $0.00

Masks are no longer required but please practice social distancing whenever possible.

Find the stone memorial recalling that this small park was the site of Fort Jefferson from 1791 to 1796. A confederacy of American Indians defeated Gen. Arthur St. Clair’s army in a 1791 battle that became known as “St. Clair’s Defeat,” and the army retreated to Fort Jefferson. Average visit time: Allow 30 minutes


Named in honor of Thomas Jefferson, then Secretary of State, Fort Jefferson was one of a chain of defensive forts built to protect army supplies from American Indians. It served as a supply base throughout the campaigns of Gen. St. Clair and Gen. Anthony Wayne, and was abandoned in 1796.

Fort Jefferson is managed locally by the Darke County Commissioners.

  • Audiences: K-5th Grade Students, 6-8th Grade Students, 9-12th Grade Students, Higher Education Students, Educators, Families, Government, Specialists, Tourists, Community Groups, History Enthusiasts & Sports Fans
  • Historical Topics: American Indian History, Military & Settlement & Statehood
  • Regions: Northwest Ohio
  • Site Activities: Self-Guided
  • Museum & Site Type: National Register Location & Ohio History Connection Site