Serpent Mound
Ancient Mystery
State: Ohio
County: Adams County
Founded: 300 BCE - 1070 CE
Abandoned: Unknown
Peak Population: Native American site
Serpent Mound is the largest effigy mound in the world - a 1,348-foot serpent built by ancient Native Americans. The site was used for ceremonies before being abandoned. Today, it is an Ohio Historical Site and tentative UNESCO World Heritage Site.
Plan Your Visit
Best Time: Year-round
Difficulty: Easy
Time Needed: 1 hour
Quick Facts
- 1,348 feet long
- Largest effigy mound in world
- Tentative UNESCO site
Location
Address: Serpent Mound State Memorial, OH
Coordinates: 39.025, -83.4333