description Susquehanna River Overview
The Susquehanna River is a 715-kilometer river in the northeastern United States and the longest river on the American East Coast. It rises in New York, flows through Pennsylvania and Maryland, and enters the Chesapeake Bay at Havre de Grace. The river is the bay's largest tributary and supplies about half of its freshwater inflow, making its watershed important to water quality, fisheries, agriculture, and flood management.
help Susquehanna River FAQ
Where does the Susquehanna River begin and end?
The Susquehanna's North Branch rises near Cooperstown, New York, and the river runs about 715 kilometers. It reaches the Chesapeake Bay near Havre de Grace, Maryland.
Which states does the Susquehanna River cross?
The river flows through New York, Pennsylvania, and Maryland. Harrisburg, Pennsylvania, is one of the largest cities located directly on its course.
How is the Susquehanna formed?
The river has North and West branches that join near Sunbury, Pennsylvania. Federal mapmakers generally treat the North Branch as the main headwater.
Why is the Susquehanna important to Chesapeake Bay?
The Susquehanna is the Chesapeake Bay's largest tributary and supplies roughly half of the bay's freshwater inflow. Its watershed covers about 27,500 square miles across the northeastern United States.
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