The Delaware River is a major river in the Mid-Atlantic region of the United States and is the longest free-flowing (undammed) river in the Eastern United States. From the meeting of its branches in Hancock, New York, the river flows for 282 miles (454 km) along the borders of : New York, Pennsylvania, New Jersey, and Delaware, before emptying into Delaware Bay.
Key Facts
| Subject | Delaware River |
| Category | Major river on the East Coast of the United States |
| Reading time | 1 min · Advanced |
| Key date | 282 |
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