This trail starts across the street from the Bell Rock Vista trailhead. It begins as fairly non-descript singletrack right where the sidewalk ends. You'll know you're on the trail after a few yards - it's well-ridden.
This one is definitely rideable by intermediates. Less experienced riders might walk a few short sections, but it's a nice flowy trail without too much to trip you up along the way. The rail surface is mostly red dirt - more dirt than rock on this one and definitely smoother than many of the other trails in the area.