Hit the trails at the Off Road Course in Maumee Ohio. Meet at the Harvest Moon Cafe at 9:00 am for breakfast, leaving by 10:00 am to head for the off-road trails. Details are here, and you can download the gps files here.
The Maumee State Forest is located 15 miles southwest of Toledo, and is one of four state forests in Ohio to offer trails for motorized off-road vehicles. You can get more information about the park here.