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Potomac River

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Potomac Named Most Endangered River

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History on the Potomac River

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Beware the Dangers of the Potomac River

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On the Potomac River of Washington DC

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Great Falls of the Potomac River

The Potomac River is located within the Mid-Atlantic region of the United States and flows from the Potomac Highlands into the Chesapeake Bay. The river is approximately 405 miles (652 km) long, with a drainage area of about 14,700 square miles (38,000 km2). In terms of area, this makes the Potomac River the fourth largest river along the Atlantic coast of the United States and the 21st largest in the United States. Over 5 million people live within the Potomac watershed.