Laid out in 1771 by the engineer John Montrésor. Heroically held by the Americans under British siege until they were forced out, Nov. 15, 1777. Rebuilt 1798-1800 according to L’Enfant’s design and enlarged in the 19th century. A U.S. military post until the 1950s.

Marker is on W Fort Mifflin Road, on the right when traveling east.

Courtesy hmdb.org

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