Near Aldie Va, a wide spot in the road ~ 10 miles west of Chantilly. It's on private property. The nearest/best trails for you are in the National Forest west of our area. Check these links...
http://www.southernregion.fs.fed.us/gwj/ohvtrails.htm
http://www.southernregion.fs.fed.us/gwj/lee/
How long have you owned the 'Vette?