Richard from DC on 3/16/2019 6:19:59 AM:
That sounds like a great adventure. I am not a big fan of the W&OD trail. It's asphalt and fast but boring. Although there are some nice spots on it, the trail goes through the suburbs. It's a strip of green, and power lines, with houses on both sides. The best part of it is from Leesburg to Purcellville. The C&O Canal out of Georgetown, on the other hand, has views of the Potomac on one side and woods and rock cliffs on the other. It's macadam and slower of course, but at least you get to see Great Falls, which is better than any sight on the W&OD. The stretch of the canal from Georgetown to Seneca is the best-maintained too. If you do take the W&OD to Leesburg, you can get onto the C&O at White's Ferry. It's about one mile on Highway 15. The road carries high speed traffic, but it has a wide shoulder for a bike. The ferry is $3 for a bike, and the crossing only takes a few minutes. Leesburg is a quaint old-Virginia town, but if you are crossing the U.S., I doubt you'll want to tarry there at the beginning of the trip.