This is probably my favorite trail... and this is only on small part of it... it changes as you ride - from narrow bushes brushing tightly to the sides to there being no shoulder just a drop-off to mud to moguls/whoop dee doos to rocks to steep hill climb to some great views out over the mountain range.

It's called Rogers Road (#36) in the TFS OHV area
http://www.youtube.com/watch?v=qvxQi2CAuuY