C&O Canal Locks Map

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C&O Canal Lock 21

Historical landmark in Potomac, United States
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C&O Canal Lock 21, located at 10700 Swains Lock Road in Potomac, Maryland, is a historic tourist attraction that preserves America's early …

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Frequently asked questions

Q:
What is the condition of the canal today?
A:
The canal today is used by millions of people every year for hiking, biking, and other recreational activities. The original towpath is still the main trail utilized by...
A:
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