The Mounds ORV Park is an off-road park in Michigan that allows legal wheeling of all sorts of all terrain vehicles. From quads, rhino's, dirt bikes, & 4x4 vehicles. You even get the 2 Wheel drive off-road junkies out here too.
The park has a lot of trails both in the woods & in the open. There a lot of places for you to go mud bogging if you want to, & there are some serious hill climbs out here too.
The latest feature of the park is their new rock course. It is going to cover 3 levels of difficulty. Easy, medium, & hard.
If you ever get a chance to visit Michigan & you enjoy wheeling, be sure to take the time to check out the Mounds. It is in Mt. Morris Michigan.