Fort Gaines was considered a state of the art defense by the time it neared completion in 1861. The cannon of Fort Gaines opposed the Union fleet during the Battle of Mobile Bay. The well-preserved ramparts of Fort Gaines have guarded the entrance to Mobile Bay for more than 150 years. Now a fascinating historic site, the fort stands at the eastern tip of Dauphin Island, Alabama, where it commands panoramic views of the bay and Gulf of Mexico. This important historic site is open to the public daily for self-guided tours. Accessible from Interstate 10 at Mobile you take exit 17-A onto Highway 193 South to follow it to Dauphin Island. Upon reaching the island turn left at the water tower and follow Bienville Boulevard until you see the fort on the right. Fort Gaines is an interesting place to learn about historic forts.