Scott's Run to Great Falls Park
This description is provided for hikers who are intent on walking the entire Potomac Heritage Trail in Virginia today. It is not recommended for novice road walkers. In fact, it is not really recommended for anyone. Over several stretches, the road is winding, the sight-lines limited and a shoulder non-existent. However, this roadside walk offers the only imaginable currently-available continuous route between Scott's Run and Great Falls. On the other hand, about half of the route along Old Dominion Drive does follow a hard-surfaced walking trail, and the half-mile on Difficult Run is a terrific hike. Truth be told, you would have more fun hiking Difficult Run from Route 7 into Great Falls, then volunteering with local PHT proponents to help make the connection with Scott's Run.