Four Major Rivers Feeding Chesapeake Bay and the Delmarva Peninsula

Chesapeake Bay, the largest estuary in the United States, receives flow from four principal rivers:

• Susquehanna River
• Potomac River
• Rappahannock River
• James River

These rivers are separated by the Delmarva Peninsula, a 274-kilometer (170-mile) long landform dividing the bay from the Atlantic Ocean. The peninsula spans portions of Delaware, Maryland, and Virginia, featuring sandy beaches, salt marshes, and fertile farmland. Its geography shapes the bay's hydrology, ecology, and human settlement patterns.