Seip Earthworks

Seip Earthworks is an archaeological site in southwestern Ohio created by the Hopewell people. The site contains two circular enclosures and a rectangular formation that cover a large area with visible earth walls still standing today.

The Hopewell culture built these earthworks between 100 and 500 CE as part of their ceremonial practices. The precise construction and mathematical patterns suggest that these structures held significant meaning for their society.

The earthworks functioned as gathering places where the Hopewell people came together for ceremonies and spiritual practices. Walking through the circular and square formations reveals how community members used these spaces to mark important occasions and maintain their collective identity.

The site offers trails that guide visitors through the earthworks, with parking areas and picnic spots available throughout the grounds. Spring and fall offer the most comfortable conditions for walking and exploring the formations.

Excavations revealed that the square enclosure matches dimensions found at other Hopewell sites far away. This suggests that Hopewell peoples shared a common measurement system across their wide geographic region.

Location: Ross County

GPS coordinates: 39.23680,-83.22020

Latest update: December 6, 2025 19:09