Fort Independence

Fort Independence occupies Castle Island in South Boston, a 22-acre site representing the oldest continuously fortified military location in British North America, with defensive structures dating back to 1634. The current granite fort, constructed between 1834 and 1851, represents the eighth iteration of fortifications on the island and played significant roles throughout American military history, from the Revolutionary War under Colonel Paul Revere to the Civil War, Spanish-American War, and both World Wars. Now operated as a state park by the Massachusetts Department of Conservation and Recreation, the island remains accessible via pedestrian and vehicular pathways, with walking routes encircling the historic fort and offering visitors connection to centuries of American military heritage.