Theres also Hannibal rocks couple minutes south of Hannibal, MO. Flat nasty is a little further south in MO. At Hannibal they have WErock, RRock competitions and XRRA has once i think. But they have a play area and many trails mild to body damage guaranteed. Great place and people. Other that the above thats already listed, We just hit the gravel until we find a creek and drop in and wheel it. I'm not one for deep water, But usually i can go around or up the banks. Legal or not i dont care and neither do the police or farmers as long as they know your going to be there and dont tear up anything in regards to farm land and crops. Around here "tread lightly" is pretty much a joke. They closed the only park in Iowa, So now they have to deal with it. We have some private land we use once and awhile, But that gets old after a few runs. Good luck, Cliff's, Badlands, Hannibal, Flat nasty are all great places.