NS through Hagerstown, MD

I know that the NS line running North (or East) out of Hagerstown goes to Harrisburg (Enola) for connection to NS's main E-W routes.

Where does the line go South from Hagerstown, I know it goes through Shenandoah Jct, WV and Charles Town, WV, but where does it continue to to the South.

Eventually Roanoke, VA, via Front Royal, VA, Waynesboro, VA, and Buena Vista, VA.

Thanks