Pics from the Gappity Gap 100k.
The Gappity Gap 100k starts in Sperryville, VA, climbs 5 miles Thorton Gap, Skyline Drive and descends into Luray. After rolling for a few miles, the route climbs Edith Gap and finally Edinburg Gap before turning around and doing the route in reverse.
This route provides a challenge. Both the 100k and 200k versions are available as a permanent, give it a try.