Potomac Overlook Trails via Lorcum Lane, with Marymount Trail (16 miles)
(hilly pavement route and soft mulch wooded trails)
 
0.0
0.6

1.4
2.1
 

2.9
3.3
3.8
4.0
 
 
 
 
 
 
 
 

9.0
9.5

10.0
10.5

16.0

Begin at Iwo Jima, go to Custis Trail 
West on Custis Trail / Lee Hwy sidewalk
Go up long Rosslyn hill
Turn right onto Custis Trail after crossing I-66 bridge
Just after crossing bridge over Sprout Run Pkwy, turnoff sharply to the left
Go under bridge and immediately turn left on bike trail to Lorcum Lane
Run down Lorcum Lane
Right on Nellie Custis Dr.  Big long hill.
Nellie Custis becomes Military Rd.
Right on Marcey Rd.
BEGIN THE 1.25-MILE POTOMAC OVERLOOK LOOP:
Pass tennis courts on left, then bear left at "Y"
Immediately, at the open gate turn right on mulch trail
After 200 yards, turn left on red trail
Follow trail system keeping Marcey Rd on your left
Halfway around, at a trail junction, do NOT follow the Donaldson Run sign. Instead, bear left.
Return to tennis courts on the trail system, again keeping Marcey Rd on your left.
Return to Marcey Rd. near tennis courts. This is the end of the 1.25 mile loop.
Try to keep running up little steep incline back up to road.
END OF 1.25 LOOP. REPEAT LOOP 3 MORE TIMES.
Turn right on Marcey Rd., return to Military.
Turn right on Military, go down hill and left into Park (Donaldson Run) 
After 50 yards, bear right across footbridge
Trail opens up on two roads; cross and stay on paved trail
Run up steep hill to 26th St. (Marymount College)
Return to Military and back to Iwo Jima
Finish at Iwo Jima