Ballston, VA to Lake Needwood, MD on the RockCreek Trail: 15 Aug, 2009 (56 miles)
Finally after 3 attempts I made it to the end of the Rockcreek Trail. It is worth the effort. The latter few miles near Lake Needwood are beautiful. The curvy trail with ups and downs provides for a fun ride. Be prepared to get lost. The trail is not well marked. Lots of paths join the Rockcreek trail and it is easy to take the wrong turn. It was a hot day the temperature soared to around 85 degrees by the time I got back and the humidity was at 50%. I had a great time nevertheless.