This wooded trail follows the ridge between Old Dominion Drive and the Difficult Run trail. In the winter, views of the river and Mather Gorge are possible near the intersection with the Ridge Trail. Those views are limited when the leaves are on the trees. Access this trail by hiking down the Old Carriage, River, or Matildaville trails. One picnic table is located near the intersection with Difficult Run trail. This scenic trail follows Difficult Run from Georgetown Pike to where the stream ends at the Potomac River. Along the way, the stream travels through a rocky bed and over a small series of rapids. This trail is narrow and rocky in some sections. Swimming and wading are prohibited in Difficult Run and the Potomac River. Hikers, cyclists, and horseback riders can connect to the forty mile long Fairfax County cross-county trail on the Georgetown Pike end. If you are hiking with a dog, pets are permitted on the cross-county trail, but must be on a leash at all times.