The Battle of Grand Gulf was fought on April 29, 1863, during the American Civil War. As part of Maj. Gen. Ulysses S. Grant's Vicksburg campaign, seven Union Navy ironclad warships commanded by Adm. David Dixon Porter bombarded Confederate fortifications at Grand Gulf, Mississippi. One of the Confederate fortifications, named Fort Wade, was silenced, but the other, named Fort Cobun, continued firing. Due to the strong Confederate resistance, Grant and Porter decided it was not feasible to make an amphibious landing at Grand Gulf, but later landed at Bruinsburg, Mississippi, instead. After the Confederates were defeated at the Battle of Port Gibson on May 1, Grand Gulf was rendered indefensible and the fortifications were abandoned. The defenders of Grand Gulf then fought at the Battle of Champion Hill on May 16 and the Battle of Big Black River Bridge on May 17, before the start of the Siege of Vicksburg, which ended with a Confederate surrender on July 4. Today, the battlefield is preserved in Grand Gulf Military State Park, which was listed on the National Register of Historic Places in 1972.