Reiters is cool, altho its not really an official ORV / OHV park. I believe its in the works to become an ORV Park in the future. Reiters has all kinds of different trails to venture off on. Its got rock walls, wash outs, river crossings, mudpits, hill climbs and more. Also got different levels of difficulty so just about anyone can find some challenge and fun there.
I'm heading over there in a couple weekend. Do you know if there is an online map somewhere that I could download of the area?