Fort Marion
In 1821, the United States assumed control of Florida and federal troops occupied the fort. It was renamed Ft. Marion, for the Revolutionary war hero Francis Marion, the "Swamp Fox."
In order to modernize the fort's defensives, the east portion of the moat was filled in and modern artillery was installed.
The middle structure in the moat is a "Hot Shot Furnace," used for heating cannon balls to fire at wooden ships.
Ft. Marion remained an active military post until 1800.
Marker can be reached from South Castillo Drive (State Highway A1A), on the right when traveling north.
Courtesy hmdb.org