I hate to post this, but I feel like this is the best place to go for the info I need. Biking from Pittsburgh to DC starting Friday. I did this last year so I am not too concerned about that part.
I have a newbie coming with me this time and we have to get from the C&O Canal trail to up near the Zoo (Marriott-Wardman Park, 2660 Woodley Rd. NW). It looks like the Rock Creek Trail intersects the C&O and we can go North on that and get pretty close. Online maps aren't too clear on that (at least the ones I have found)
Any of you DC'ers know if that is the case? If it was me, I'd just meander that way until I got where I needed to be, but the person going with me is kind of concerned about that part of the trip.