Fort Gardiner
United States
Fort Gardiner was a stockaded fortification with two blockhouses that was built in 1837 by the United States Army. It was one of the military outposts created during the Second Seminole War to assist Colonel Zachary Taylor's troops to capture Seminole Indians and their allies in the central part of the Florida Territory that were resisting forced removal to federal territory west of the Mississippi River per the Indian Removal Act.
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).