Fort Brooke
Fort Brooke was a historical military post established at the mouth of the Hillsborough River in present-day Tampa, Florida, in 1824.
Its original purpose was to serve as a check on and trading post for the native Seminoles, who had been confined to an interior reservation by the Treaty of Moultrie Creek (1823), and it served as a military headquarters and port during the Second Seminole War (1835–1842). The village of Tampa developed just north of the fort during this period, and the area was the site of a minor raid and skirmish during the American Civil War. The obsolete outpost was sparsely garrisoned after the war, and it was decommissioned in 1883, just before Tampa began a period of rapid growth, opening the land for development.
Text adapted from Wikipedia, CC BY-SA 4.0. Photograph: War Department (see Commons), Wikimedia Commons.