Map not correct. Bumpus Cove gravel is a 7 mile mostly gently/rolling climb. At around 6.9 miles there is a forestry service gate up the hill to the right. Go that way for MILES AND MILES of offroad fun/options (best on a mtb). The other forestry service gates on Bumpus Cove, to my knowledge, dead end. At the 7.1 mile mark there is a path through the woods on the left. Go that way to Erwin. First part of path is around 1.6ish miles. At the fork, go right. VERY STEEP (and at times rough) downhill that drops you out on Sandy Bottom Rd in Erwin. If you go this way on a gravel bike, be careful. Do not attempt to do Sandy Bottom to Bumpus in reverse or you'll walk almost half of it. It is extremely steep.