File:Ft St Leon-St Mary Plan 1747.jpg

Ft St Leon & St Mary Plan 1747, public domain USACE, Gilmore, Kathleen and Noble, Vergil E., Archeological Testing at Fort St. Leon (16PL35), Plaquemines Parish, Louisiana. May 1983, New Orleans District, Corps of Engineers, Contract No. DACW29-81-C-01ll, Contractor: Institute of Applied Sciences North Texas State University, 337 pages, Pdf