Valley Trail, Rock Creek Park, Washington DC: a trailrunner's delight

What a great trail run today! I spent about 4 hours in Rock Creek Park mostly on the Valley Trail. There are several other trails that intersect it that I explored as well. These trails have such a wonderful variety, from gnarly technical inclines/declines to awesome cruising trails. Wildlife is plentiful (deer, birds - no cougars or bears, I assume). Much of the trail is next to and above the creek with it's whirling water music. There are many bikers, joggers and runners on the bike paths in the park. The dirt trails are much less populated. A great get away only 7.5 miles from home with metro access! And a perfect training run for the JFK 50 or any other tail run.