Little Falls, Potomac River, Washington DC
Washington DC is one of the many cities in the US Mid-Atlantic region located on the “fall line” where the hard crystalline bedrock of the Piedmont meets the relatively soft sediments of the Coastal Plain. The region contains several major rivers that are as a rule wide, navigable and tidal up to the fall line. At that point they usually contain a steep fast stretch as they transition to their generally narrower, shallower, fresher Piedmont forms. Some of these “falls” are more impressive than others. Now that I’m listing them out, they appear to get more dramatic as you go south. A casual tuber could go over the falls on the Delaware at Trenton without spilling his or her drink (though to be fair I’ve only seen them briefly out a train window). The dam on the Schuylkill by the Philadelphia water works is a nice urban park, but it is overshadowed by the city's Museum of Art nearby (from Rocky ). Jones Falls in Baltimore features some dramatic scenes of post-industrial nature but th