The fortifications of Fort Moultrie were originally called Fort Arbuthnot, or Fort Sullivan. They were built by Colonel William Moultrie and renamed for him after he repulsed a British naval attack in June 1776 in one of the most decisive battles of the American Revolution.

During the Seminole War, Osceola, a chief and 200 Seminoles were imprisoned in the fort. Osceola's tomb can be found there. Later, during the Civil War, Confederates held the fort until the evacuation of Charleston in 1865. Fort Moultrie remained Charleston's chief harbor defense until 1947, when it was abandoned.

Fort Moultrie is part of Fort Sumter National Monument. It is on Sullivans Island at the entrance to the harbor of Charleston, South Carolina.

Fort Moultrie is 180 km southeast from Columbia and 750 km south from Washington D.C.

Fort Moultrie ©James Willamor

Fort Moultrie ©Ron Cogswell

Fort Moultrie ©Warren LeMay