The trail is called, Banks-Vernonia Trail, and is near this park. The trail provides a 42 mile ride if you choose. We only had time for the 20 mile ride and loved it. We were surrounded by nature the entire ride.
We stopped in the town of Vernonia and shared a snickers...... a little energy buster for the ride back. If you are ever in this area grab some bikes or take a walk along the trail.