John W from Pittsburgh, PA on 7/16/2016 12:08:43 PM:
Do you mean the Western Maryland Rail Trail? It runs parallel to the C&O for about 22.5 miles before and after Hancock, MD. I can't recall the exact mile markers to look for or where to turn off. There is a sign on each end. Just look at the WMRT web page for their maps. Google maps might even have it also if you turn on Biking.