I'm not actually sure camping is allowed anymorre
There is a small campground but I'm guessing it is for a girl scout group or something like that. It didn't seem very well used and was locked tight. There are signs stating no entry after dark. Maybe you can camp but there would be no services except a picnic table. It would be fun though to start at the dam in a canoe and use this as a place to stop for the night. I would say call before trying to stay.
Month of VisitJune