Promoting nature education and recreation at Onondaga Cave State Park in Leasburg, Missouri

2024 Events

Off-Trail Caving Tours!

Become an OFA Member and Volunteer!

OFA events are volunteer-led. If you want to be part of this beautiful State Park, please consider being a Volunteer.  Become a helictite, cave frog or even a bat by giving here!  Your membership helps to bring interpretive services to those who visit Onondaga Cave State Park.  Thank you!

Mill Run backlit

We are working on a new website!

We sure appreciate your patience while we are under construction. Please reach out to us at onondagafriends@gmail.com  if you have any questions.


Friends of Onondaga Cave State Park,

Onondaga Friends Association

P. O. Box 13, Leasburg, Missouri  65535 

onondagafriends@gmail.com