Fort Jefferson

Fort Jefferson is a former U.S. military coastal fortress in the Dry Tortugas National Park of Florida. It is the largest brick masonry structure in the Americas, covering 16 acres (6.5 ha) and constructed of over 16 million bricks. Among United States forts, only Fort Monroe in Virginia and Fort Adams in Rhode Island are larger. The fort is located on Garden Key in the lower Florida Keys within the Dry Tortugas, 68 miles (109 km) west of the island of Key West. The Dry Tortugas are part of Monroe County in Florida.

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1847 Website,  Wikimedia, Wikidata
Fort Jefferson National Monument; Fort Jefferson, Florida
Union Army, sea fort, island, Dry Tortugas National Park, 

• National Register of Historic Places listed place page^@
• National Register of Historic Places page^@
• FortWiki page^@
• Starforts page^@
• Tripadvisor page^@
​ ​ ​ ​ ​ ​ ​ ​

Location: 24.6278, -82.8731, KML, Cluster Map, Maps,
2 places

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  Fort Jefferson ⓘ
  fortified island in Florida, USA  

• 

  Nuestra Señora de Atocha ⓘ
  sailing ship

1847-01-01T00:00:00Z

1847-01-01T00:00:00Z

1847 Fort Jefferson

1846-12-01T00:00:00Z

1846-12-01T00:00:00Z

construction

1620-01-01T00:00:00Z

1622-09-06T00:00:00Z

1620 — 1622 Nuestra Señora de Atocha

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Frameless

There are perhaps a dozen old cannons called Columbiads scattered along the Terreplein of Fort Jefferson (now Dry Tortugas (94c49f55d3634874b0a38524c060e83f)

Dry Tortugas National Park DRTO1594

Narrow archways (communication arches) between casemates (at Fort Jefferson) are close to parade ground. These are on ground (558b8f1a8351487390814c55819891b6)

Cannonball Furnace, Fort Jefferson, Dry Tortugas National Park, Florida (51137341329)

Cannonball Furnace, Fort Jefferson, Dry Tortugas National Park, Florida (51135890822)

Dry Tortugas National Park DRTO1587

Aerial photograph of Fort Jefferson, Dry Tortugas National Park, showing islands, reefs and breakwater. (bb724462eed747fd87b6a2b5c0dfc10c)

The casemates at Fort Jefferson, Dry Tortugas National Park, Florida, USA

View of Fort Jefferson with Loggerhead Key distant, Dry Tortugas National Park, Florida, USA

Courtyard of Fort Jefferson in the Dry Tortugas

Type	Subtype	Date	Description	Notes	Source
link	page		National Register of Historic Places listed place page@		Wikidata
link	page		National Register of Historic Places page@		Wikidata
link	page		FortWiki page@		Wikidata
link	page		Starforts page@		Wikidata
link	page		Tripadvisor page@		Wikidata
site	fort	1847	Fort Jefferson	sea fort, Union Army, island	Wikidata
site	shipwreck	1620	Nuestra Señora de Atocha	shipwreck, galleon	Wikidata
commons	image		There are perhaps a dozen old cannons called Columbiads scattered along the Terreplein of Fort Jefferson (now Dry Tortugas (94c49f55d3634874b0a38524c060e83f)		Commons
commons	image		Dry Tortugas National Park DRTO1594		Commons
commons	image		Narrow archways (communication arches) between casemates (at Fort Jefferson) are close to parade ground. These are on ground (558b8f1a8351487390814c55819891b6)		Commons
commons	image		Cannonball Furnace, Fort Jefferson, Dry Tortugas National Park, Florida (51137341329)		Commons
commons	image		Cannonball Furnace, Fort Jefferson, Dry Tortugas National Park, Florida (51135890822)		Commons
commons	image		Dry Tortugas National Park DRTO1587		Commons
commons	image		Aerial photograph of Fort Jefferson, Dry Tortugas National Park, showing islands, reefs and breakwater. (bb724462eed747fd87b6a2b5c0dfc10c)		Commons
commons	image		The casemates at Fort Jefferson, Dry Tortugas National Park, Florida, USA		Commons
commons	image		View of Fort Jefferson with Loggerhead Key distant, Dry Tortugas National Park, Florida, USA		Commons
commons	image		Courtyard of Fort Jefferson in the Dry Tortugas		Commons