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The Lower Potomac

The Potomac Estuary

Mount Vernon to Anacostia River

Mall Area

Georgetown to Great Falls

Potomac Piedmont

Upper Potomac

The North Branch

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Monitoring Sites

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Port Tobacco River

Maryland Tributary

This 4.2-mile long tributary was an active port in the early 19th century, until it became unnavigable due to siltation from tobacco farming. After the railroad was built and bypassed the town, it declined and the county seat moved to La Plata.

Suggested Links

Contact Information
Maryland Department of Natural Resources

MD

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