Right in the midst of the urban sprawl of Fairfax/Prince William Counties is a small piece of paradise. Hikers going from the Hemlock Overlook Regional Park to the Bull Run Marina may pinch themselves to make sure they haven't been transported to a stream somewhere in West Virginia - it's that kind of experience. The trail system along the Bull Run stream/river and Occoquan reservoir (the fresh water supply for half of Fairfax County) offers hikers and horseback riders 18 to 20 miles of continuous blazed trails between Fountainhead and Bull Run Regional Parks. The run is simply beautiful, with small Class 1 rapids above Bull Run Marina (up to Rt. 28) during the spring-time months of the year.
Detailed strips maps of the trail, suitable for printing:
Section 1: Bull Run Regional Park to Route 28
Section 2: Route 28 to Southern Railroad Line
Section 3: Southern Railroad to Kinchloe Soccer Fields
Section 4: Kinchloe Soccer Fields to Wolf Run Shoals Road
Section 5: Wolf Run Shoals Road to Fountainhead Regional Park
More information from Potomac Appalachian Trail Club.
Hemlock Overlook Regional Park is a good place to access the trail. Directions: To reach Hemlock Overlook, take I-66 to Route 123, drive south on 123 to Clifton Road, turn right on Clifton Road and drive 3.7 miles, turn left on Yates Ford Road and follow it to the park entrance. You can park at the location on the map below marked "BROTHO." The Bull Run/Occoqual Trail is the red trail on the left, following Bull Run. It continues south, off the bottom of this map: