Landscapes & nature
Chesapeake and Ohio Canal
Canal in Washington, D.C. and Maryland, United States
Wikipedia names Chesapeake and Ohio Canal as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Chesapeake and Ohio Canal. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities
Washington County
United States · 10 km north-east
County in Maryland, United States
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Towns & cities Hagerstown
United States · 19 km north-east
City in Maryland, United States
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Landmarks & buildings
Dahlgren Chapel
United States · 21 km east
Defunct Catholic chapel in Maryland
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Towns & cities
Harpers Ferry
United States · 24 km south-east
Town in West Virginia, United States
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Towns & cities Burkittsville
United States · 25 km south-east
Town in Frederick County, Maryland, United States
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Towns & cities
Brunswick
United States · 30 km south-east
City in Frederick County, Maryland, United States