Lake Fairfax Park Trail Run

Lake Fairfax Park

7 to 18 Mile Trail Run

Measured: 18 miles

View: Start Location / 


  1. Head down the hill away from the park entrance toward picnic areas.
  2. Left at bottom of hill at rest rooms along gravel road.
  3. Pick up the trail heading into the woods (leftish) and across Hunter Mill Road. Note the trail is marked with white posts with horse shoes.
  4. The trail (dirt, in the trees) will continue with no real options to get off until Route 7 (water stop).
  5. Cross Route 7 and take the 1st road to the RIGHT
  6. Follow the road a short distance until it turns into a trail (following posts with horse shoes on them).
  7. Cross Difficult Run on the pylons and look for trail exiting to the right.  Turn right on trail. 
  8. When you come onto a cul de sac, cross street and look for re-entry to trail on far side to left 
  9. When you come to Leigh Mill Road, run along right-hand side of road to end of glade area where path continues on opposite side of road.  There is often water here.  Turn around for 7-mile run.  Cross Leigh Mill Rd and continue on trail for longer run.  
  10. Left to cross Difficult Run when it gets quite close to the trail and there are obvious signs of a trail heading into the stream. The main trail will continue forward (which is another parallel option).  It will be ankle-height at certain points, thigh-height at others. Note white post at far side.
  11. At other side of stream, go right on the trail.
  12. Cross Difficult Run again, this time on concrete ford (shoe-deep). Note: VERY SLIPPERY, be careful.
  13. Cross Difficult Run again (ankle-deep) and go up steep hill on far side to small parking lot off Georgetown Pike.
  14. Go right to follow trail.
  15. Cross under Georgetown Pike, trail rises up to wide gravel road.
  16. For aerobic option, take a left up VERY STEEP hill about 100 yards past the road. You've gone too far if you reach trash cans on your left. Wimps may continue forward on wide gravel road, joining the real runners farther down the trail.
  17. STEEP HILL option levels off and intersects with gravel road.
  18. Left on gravel road for short distance.
  19. Right on gravel road heading downhill. This wide road will take you to Great Falls Park in about a mile. There are bathrooms, picnic tables, falls.
  20. To continue on to RIVERBEND PARK (for long long runs), follow the obvious trail along the Potomac. Riverbend is another mile or so, then the trail continues another mile or two. There are hilly options on the left away from the river.


This is an out-and-back run, so run by time. There are a variety of parallel options if you want to explore.

Your comments are most welcome. Click the link to open an email box: This email address is being protected from spambots. You need JavaScript enabled to view it.

Joomla templates by a4joomla