You might want to check with the Corps Of Engineers. They have an inexpensive book on ALL Corps Camping. If you are 62 years old or older you can purchase a Golden Age Passport for a one time cost of $10. Then you can camp at:Corps Of Engineers, Bureau Of Land Management, Fish & Wildlife Sevices, Bureau Of Reclamation, National Park Service, Forrest Service, Tennessee Valley Authority for 50% off your camping fees.
Midwest Dave
Where the Mississippi River runs east and west!