I rode the Chesapeake Western back in the early '70's with a group of fellow rail enthusiasts. It was indeed a wholly-owned subsidiary of the N&W. Using Harrisonburg, VA as a central point, the lines extended west to Bridgewater (8 miles), east to Elkton (21 miles) and south to Staunton (26 miles). The line's motive power at the time consisted of one or two Alco T-6's (very cool!). Our charter fantrip consisted of a motorized inspection car, driven by the line's president! I think the mileage was cut back over the years, but I'm clueless about its current status within Norfolk Southern. Maybe someone else can pick up the thread and run with it.