tampabiker'swife from Tampa on 7/13/2017 9:23:15 PM:
Yes, you can access the WMRT from C & O towpath. It is at mile marker 136.3. When you see lock 56, go back about 100 feet or so, take the gravel road on the left, go about 150 feet directly to the WMRT. Be on the look out, if not, you will miss it, no signs or anything. A very appreciated paved trail!