https://maps.app.goo.gl/DuQzqRNtbBfcT9F26. You should see a red marker that indicates the entrance to the trail. Ride in and immediately go up and to the left. You should see a sign on a tree that says "Lower". Follow the single track until you see Marker 4.
End Point
Marker 4
Directions from Parking to Trail
Park on the street. Go back out to the main street and take a left to head towards the chain link gate that lets you into the trail system.