A solid 5 miles of hills, flats, and seemingly endless single track.
Following GPS provided Start to climb a short hill and continue downhill along fire road and single track until mile 2. Then it's a rolling flat n'easy 2&3/4 mile back to the final hill climb back to the car.
09/19/12 I forgot how much I enjoy running O'Neil park. I saw three deer in to different locations. One right on the trail as I turned the corner. Only saw one mtn biker. That's a perfect ratio if you ask me.