Fort San Marcos De Apalache - View this location on map This is the site of successive wooden and masonry fortifications occupied throughout the Spanish and British colonial periods, and by U.S. troops during the Second Seminole War. Capture of the Spanish fort by Andrew Jackson in 1818 was instrumental in events leading to the American acquisition of Florida in 1821. 18 miles south of Tallahassee on U.S. 319 and FL 363, St. Marks, Florida Historical

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