1. Leave the parking lot by running east (away from Reston Parkway) on the path along the south border of the commuter
   parking lot
2. Follow path into the woods turning right at first "T" intersection
3. Right at second trail intersection (shortly after crossing wooden bridge), crossing Steeplechase Drive (via the steps
   or the large under-road culverts)
4. Continue east on the trail (Glade Trail) as it crosses to the north (left) side of the stream bed
5. Right at the next trail intersection, crossing to the south (right) side of the stream bed
6. Continue across Soapstone Drive
7. Left at the second trail intersection beyond Soapstone, crossing again to the north
   side of the stream bed
8. Trail emerges onto Twin Branches Road where it intersects with Glade Drive
9. Follow Twin Branches across the Lake Audubon dam, up the hill to South Lakes Drive
10. Right on South Lakes
11. Right onto the path behind the retirement community (Thoreau Place) to Sunrise Valley Drive at the tennis courts.
12. Right on Sunrise Valley Drive to intersection with W&OD Trail [Water stop located here]
    [Note: If you wish to run only 10 miles, ignore the next two steps (i.e., don't do the 2.5 mile "out-and-back" on the
    W&OD)]
13. Right on the W&OD for 2.5 miles (to the east end of Clark;s Crossing parking lot, across from the soccer fields)
14. Turn around and return to Sunrise Valley and the Water Stop
15. Continue on the W&OD toward Wiehle Ave.
16. Right on Wiehle Avenue
17. Left on first intersection with North Shore Drive
18. Left on Temporary Road to Reston Parkway [A second water stop may be located at the SW corner of North Shore Dr. and Temporary Rd; hot weather only]
19. Right on the path along the east side of Reston Parkway
20. Left through the underpass beneath Reston Parkway
21. Left on path along the west side of Reston Parkway
22. Follow Reston Parkway south for about 2 miles, shifting to running along the shoulder on the east side of the parkway
    sometime between Glade Drive and Fox Mill Road intersections
23. Left into the commuter parking lot to finish
    

1) In very hot weather, this course may be run in the reverse direction
so that the unshaded portion of the course is covered before the sun is high.

2) Use the out-and-back stretch along the W&OD trail east of Sunrise Valley Drive (towards Vienna)  to add any desired distance to the basic 10 Mile course.  The stretch to just beyond the bridge over Difficult Run will add 3 miles.  The stretch to Clark's Crossing parking lot will add 5 miles.

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