the C&O Canal in a day?

how about the trek from Pittsburgh to DC?

Amtrak has a a Bicycle Survey

AMTRAK BICYCLE SERVICE SURVEY
Currently, there is limited opportunity for bicycle transportation on Amtrak’s Capitol Limited route, which parallels the Great Allegheny Passage and C&O Canal Towpath between Washington, DC and Pittsburgh, PA. This brief survey attempts to determine how much consumer interest there is for Amtrak to expand upon its bicycle service on the Capitol Limited route. We appreciate your time in completing the survey.