Fort Jefferson

American  

noun

1. a national monument in Dry Tortugas, Fla.: a federal prison 1863–73; now a marine museum.

---

Example Sentences

The only identifiable grave found underwater belongs to one John Greer, who is listed in the records for Fort Jefferson as a civilian laborer who died on Nov. 5, 1861.

From Washington Times • May 3, 2023

The main island, which is dominated by the hexagonal Fort Jefferson, a disused military fortress made of brick, has no hotels and only a primitive campsite.

From Reuters • Jan. 3, 2023

The main attraction is the Civil War-era Fort Jefferson, a grandiose structure full of history and surrounded by submerged docks teeming with marine life that make for great snorkeling sites.

From Washington Post • Mar. 17, 2022

“Jupiter Lighthouse, Fort Zachary Taylor in Key West, Fort Jefferson and Fort Pickens in Pensacola — all of these places are threatened.”

From Seattle Times • Dec. 28, 2017

All were sent to Fort Jefferson in the Dry Tortugas, a baking-hot group of islands about eighty miles west of the Florida Keys.

From "Lincoln's Last Days: The Shocking Assassination that Changed America Forever" by Bill O'Reilly