A tall conspicuous boulder when the leaves are down, the rock completely disappears from sight once the leaves come out. It's located about 100 yards off trail between the green blazed trail and the Gas Line Connector trail. From the Commerce Way entrance, go left to get to the blue blazed trail. Turn right and follow the blue blazed trail until it meets up with the green blazed trail (just past the junction with the Gas Line Connector trail. Follow the green blazed trail downhill 150 yards until the trail starts to level out. Look for an old stone wall on the right. Cross the stonewall and head into the woods perpendicular to the wall. If you get to the Gas Line trail, you've missed the boulder.