Camp Ondessonk is a rustic, outdoor, Catholic youth camp run by the Belleville Diocese. It is located in the Shawnee National Forest of Southern Illinois, near Ozark, Illinois. The camp strives to remain a “last frontier” of sorts, where participants can experience life away from the plugged in world of today's society, and go back to a time of outdoor living while experiencing nature to the fullest. Camp Ondessonk states their mission to be "to provide an environment that inspires physical, mental, emotional, and spiritual growth for individuals and groups through the appreciation and stewardship of nature." Camp Ondessonk is accredited by the American Camp Association.