Quote Originally Posted by owlice View Post
I like this trail a lot: http://www.bikewashington.org/trails/ncr/ncr.htm

It's a better surface than the C&O.

How far do you want to bike? Depending on the length of ride you are looking for, I may have other suggestions.
That would be more than long enough. I doubt I'd do more than 30 miles.

For this trail I would take my flat bar road bike (commuter); would I want my knobby tires?