Rivnuts from Homestead, PA on 3/27/2022 4:00:23 PM:
This isn’t the answer you’re looking for since I, myself, don’t have a good answer to your question. But, an off-the-wall alternative would be to leave the C&O at Harpers Ferry or Brunswick in route to Purcellville, VA and/or Leesburg, VA where lodging is readily available. This would break up the distance between Harper’s Ferry and Washington albeit by completing the trip into Washington on the W&OD Trail. This would require a fair amount of riding on the roads to reach the W&OD Trail and some climbing, particularly getting up out of the Potomac River valley. I’ve ridden from Purcellville to Harper’s Ferry. It is rideable but certainly not for everyone depending on one’s confidence to ride on the roads and their fitness.
As I said, probably not an answer you were hoping for but an option nonetheless. Hopefully, someone in that area can provide you a better solution.