This trail is pretty tight but VERY rooty. This trail seems to be very overused and tends to get very wet after it rains. Good workout but be prepared to be shaken til you can't shake no more.
"From Greensboro, take 220 N (Battleground Ave.) towards Lake Higgins. Turn left onto Hamburg Mill Rd. Take the second left and park in the gravel beside the fence.
http://www.singletracks.com/item.php?c=1&i=613