Fort Jefferson

E55124
19th-century fortification United States National Monument component brick masonry structure coastal fortress historic site

Fort Jefferson is a massive 19th-century coastal fortress located on Garden Key in the remote Dry Tortugas of Florida, known as one of the largest brick masonry structures in the Western Hemisphere.

Jump to: Surface forms Statements Referenced by

Observed surface forms (4)

Surface form Occurrences
Fort Jefferson, Dry Tortugas, Florida 3
Fort Jefferson (on Garden Key) 1
Fort Jefferson National Monument 1

Statements (50)

Predicate Object
instanceOf 19th-century fortification ⓘ
United States National Monument component ⓘ
brick masonry structure ⓘ
coastal fortress ⓘ
historic site ⓘ
accessibleBy boat ⓘ
seaplane ⓘ
administeredBy National Park Service ⓘ
approximateNumberOfBricks over 16 million ⓘ
area approximately 16 acres ⓘ
constructionMaterial brick ⓘ
masonry ⓘ
country United States of America ⓘ
surface form: United States
distanceFromKeyWest about 70 miles west of Key West ⓘ
endDate circa 1875 ⓘ
feature bastions ⓘ
casemates ⓘ
lighthouse ⓘ
moat ⓘ
parade ground ⓘ
sally port ⓘ
three-tiered gun emplacements ⓘ
garrisonedBy Union Army ⓘ
United States Army ⓘ
heritageDesignation National Historic Landmark ⓘ
listed on the National Register of Historic Places ⓘ
heritageDesignationDate 1970 ⓘ
locatedIn Dry Tortugas National Park ⓘ
surface form: Dry Tortugas

Florida ⓘ
Garden Key ⓘ
Monroe County, Florida NERFINISHED ⓘ
United States of America ⓘ
surface form: United States
locatedInBodyOfWater Gulf of Mexico ⓘ
Straits of Florida ⓘ
namedAfter 3rd President of the United States ⓘ
Thomas Jefferson ⓘ
notablePrisoner Dr. Samuel Mudd ⓘ
Dr. Samuel Mudd ⓘ
surface form: Samuel A. Mudd

Dr. Samuel Mudd ⓘ
surface form: Samuel Mudd

conspirators in the assassination of Abraham Lincoln ⓘ
openToPublic true ⓘ
partOf Dry Tortugas National Park ⓘ
region Florida Keys ⓘ
shape hexagonal ⓘ
startDate 1846 ⓘ
superlative one of the largest brick masonry structures in the Western Hemisphere ⓘ
use coastal defense ⓘ
lighthouse support facility ⓘ
military prison ⓘ
usedDuringConflict American Civil War ⓘ

Referenced by (13)

Full triples — surface form annotated when it differs from this entity's canonical label.

Michael O'Laughlen → deathPlace → Fort Jefferson ⓘ
this entity surface form: Fort Jefferson, Dry Tortugas, Florida
Long Key → hasNearbyHistoricSite → Fort Jefferson ⓘ
this entity surface form: Fort Jefferson on Garden Key
Dry Tortugas National Park → hasPart → Fort Jefferson ⓘ
Garden Key → hasStructure → Fort Jefferson ⓘ
Michael O'Laughlen → imprisonedAt → Fort Jefferson ⓘ
this entity surface form: Fort Jefferson, Dry Tortugas, Florida
Samuel Arnold → imprisonedAt → Fort Jefferson ⓘ
Dry Tortugas National Park → knownFor → Fort Jefferson ⓘ
Garden Key → knownFor → Fort Jefferson ⓘ
Bush Key → near → Fort Jefferson ⓘ
Middle Key → notableNearbyFeature → Fort Jefferson ⓘ
this entity surface form: Fort Jefferson (on Garden Key)
Michael O'Laughlen → placeOfDetention → Fort Jefferson ⓘ
this entity surface form: Fort Jefferson, Dry Tortugas, Florida
this entity surface form: Fort Jefferson National Monument