National Geographic : 1947 Feb
U.S.Navy-National Park Service Ghost in the Gulf of Mexico, Six-sided Fort Jefferson Presents the Illusion of a MonsterShip Aground inShoal Water An estimated 42 million bricks stretch around 3,030 feet of Garden Key. The fort's walls are 8 feet thick and 45feet high. Three gun tiers could hold 450 cannon. Rusting coal piers (left and right) were abandoned by the Navy after hurricanes wrecked them. From these..waters the battleship Maine sailed toher death at Havana. Bush Key lies within shouting distance. Beyond: Long Key.