GLCP = Georgia Land Conservation Program. Look for this sign 2.5 miles east of the Brush Mountain Tunnel.
There is a nice gravel road about 50 yards down the foot path. If you turn left on the gravel road it climbs to the top of Brush Mountain right above the tunnel. If you turn right it dead ends at the Pumpkinvine Creek after only a short distance. Due to tree cover the creek is not visible from the trail, even in winter and 99.9% of people who ride the trail don't know it is there. It is worth the walk down to see, even in cleats.
-Tim-