Upcoming Events at Serpent Mound July 11, 2025 Serpent Mound Archaeology Tour Effective January, Serpent Mound will offer two archaeological tours a month with archaeologist Bill Kennedy on the 2nd and 4th Fridays of each month during the 2025 season. Tours begin at the Serpent Mound Visitor Center at 1:30 p.m. and end at 3 … Continue reading Serpent Mound