From the above
mention parking lot cross S Arlington Mill Dr and proceed left on the
Four Mile Run trail. Once you reach Walter Reed Dr. the trail head for
W&OD will be across Walter Reed Dr and to the left. This trail is
another rail to trails conversion so the trail is paved, flat and
wide. The trail is considered to be the skinniest park in the country
with only 100 feet wide, the trail is not that wide, the park is that
wide. The trail goes for 45 miles one way all the way to Purcelville,
so it is a 90 mile roundtrip, plan accordingly. A good website to get
more information about the trail is www.wodfriends.org They include a
nice mileage chart. ENJOY!!
From DC take I-395 south to Shirlington, exit<br />7. Make your way to the back of the Shirlington movie theater and park<br />in the big parking lot located off of South Arlington Mill Dr. Once<br />parked the Four mile run trail is located across S Arlington Mill Dr.<br />and take a left toward Walter Reed Dr.
http://www.singletracks.com/item.php?c=1&i=1087