In short
Large, unfinished sea fortress on a remote island. Construction was started in 1846 and was not finished. Garrison here has been more than 1,700 soldiers large.
48.8%
GPS coordinates
24.6288 N 82.87329 W
Location, address
North America, United States, Florida, Monroe County, west from Key West, Dry Tortugas National Park, Fort Jefferson
Fortresses and forts
Map of the site
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