Fort St. John

Bayou St. John was at the height of its importance as a transportation artery in 1808 when the present fort was built. Fort St. John and the bayou shared this importance until the third decade of the nineteenth century. By that time the Spanish were gone from the Florida Parishes and the bayou's importance as a transportation route had declined. In 1823 the fort was decommissioned and sold to resort developers in the area. They renamed the area "Spanish Fort"
It was included in the National Register of Historic Places in 1983
Source: Louisiana Register of Historic Places