This was day three of riding at Fairy Stone State Park and still smilin'. There isn't a huge network of trails. The main loop is 41/2 miles and the other two loops are about 21/2, but you can workem all together and get a good ride in. You can also just punish yourself with repeats on the main loop which is about 21/2 miles of climbing, but the down hill is worth it. It would be an awesome place for a race.