Alot of them are up my Lake Michagin. Badlands Off Road Park has some dunes, mud, pea-gravel, and a MX Track. And a whole bunch of othefun stuff. by the way, have u ever drove ur fourwheeler in peagravel? unless u have mud tires, ur tires spin.
I've been to silver lake sand dunes in michigan...its where my family goes to vaca. Its always a blast. Home is in northern Indiana but going to school in southern Indiana lol... Never been to Bad Lands...want to go there