- This event has passed.
Serpent Mound Winter Hours
November 24, 2025 @ 12:00 am
Serpent Mound winter hours begin. Closed Mondays & Tuesdays. Open Wed.-Sat. 10:00 a.m. – 5:00 p.m., Sun. – 12:00 to 5:00 p.m. Info @ https://www.ohiohistory.org/visit/browse-historical-sites/serpent-mound/