Map showing entrance to Mobile Bay and course taken by Union fleet.
Map shows Confederate fortifications (Forts Powell, Gaines, Morgan) and the location of Union fleet in Mobile Bay and the Gulf of Mexico. On August 5, Union Admiral Farragut attempted to lead several ships into Mobile Bay, past formidable Confederate forts and the ironclad C.S.S. Tennessee. Despite the sinking by a mine of the U.S.S. Tecumseh, the Union fleet passed through the channel and engaged the Tennessee, paving the way for Union land operations against the city of Mobile, Ala. Undermanned and damaged by Union rams, the Tennessee surrendered.