Which Pennsylvanian city sits at the confluence of the Delaware River?
Easton, Pennsylvania:  Easton is located at the confluence of the Delaware River and the Lehigh River, roughly 55 mi north of Philadelphia and 70 mi west of New York City. Delaware River:  It drains an area of 14119 sqmi in five U.S. states—New York, New Jersey, Pennsylvania, Maryland and Delaware.
i don't know