Clark County Road 606 between US-50 and VA Route 7. A road about 10-12 miles long that will tickle the Twisties for you. This morning there was some kind of major accident on Route 7 East just before the Shenandoah river bridge. The traffic was backed up to Berryville which is several miles to that bridge. I detoured over to US-50 through Berryville on US-340. Once I crossed the Shenandoah river on 50 I took the first major left turn (no GPS on my bike) just dead reakoning...which turned out to be 606. What a great drive. Lots of hills and turns. There are some smaller secondary roads that intersect 606, but if you just stay with the yellow center lines it will eventually bring out by the Shenandoah river for a couple of miles and then the road joins Route 7 just on the east side of the bridge that I couldn't get to earlier. What a pleasant detour, and great ride. I encourage you to try it! Beautiful river scenery.
Here is a link to a google map of the area. http://goo.gl/maps/gVmLo
You will have zoom in to find that 606 route...
-John