Fort Gaines is an historic fort on Dauphin Island, Alabama. Established in 1821, it is best known for its role in the Battle of Mobile Bay during the American Civil War. Exhibits include the huge anchor from the USS Hartford. The fort also has the original cannons used in the battle, five pre-Civil War brick buildings in the interior courtyard, operational blacksmith shop and kitchens, tunnel systems, etc. It is considered to be one of the nation's best preserved Civil War era forts.