Hidden Valley Metropark
4872 Klasen Road
Madison, OH 44057
Upcoming Events
- 8:00 am – 2:00 pm, May 16, 2026 – 2026 Grand River Cleanup
- April 2026 Membership Meeting
April 16, 2026; (7:30 pm – 9:30 pm) - 2026 Ashtabula River Clean Up
April 18, 2026; (8:00 am – 12:00 pm) - 2026 Conneaut Creek Cleanup
May 9, 2026; (8:00 am – 12:00 pm) - 2026 Grand River Cleanup
May 16, 2026; (8:00 am – 2:00 pm)