Easy road to ride on. Large parking lot to practice skills.
Coming off of Cooper Loop (going counter clockwise), you'll see a parking area and a sign indicating Betty's Guest Ranch. Turn left.
The road is a maintained gravel road where you can pick up some speed. There are some tight/blind left-hand curves. Be sure to stay on the right side of the road going down. The Perimeter Trail will be to the left of the next parking area.