I live in the historic town of Clifton, VA just over the Occoquan from you (via Davis Ford, Yates Ford and Clifton Roads). I own both a ped 76 PUCH w/70 cc kit and a 2001 Derbi Atlantis (currently in the shop for it's 500 mile check up and the installation of a "proformance exhaust system").
Catch up with me via email. The Derbi should be ready by friday. If I can squeeze it in, I am going to shoot up to Bluemont, and the mountains, via backroads. (about 75 miles) on Saturday morning and get home in the early afternoon. I learned this trail during a Vintage Motorcycle Poker Run on my ped. It should be awesome now that the leaves are turning.