 66 from Roslyn all the way through Front Royal moving at speed. But if you're in Fauquier County heading eastbound on 66, the crash is just before the Markham exit 18 about mile marker 17.5. Watch out on the right side. Should have some flashing lights. Units are marked on scene. Cannot see this one, so you might find it by surprise. Again, eastbound before the Markham exit.