Bolivar Heights is a plateau that is 668 feet (204 meters) high, located near the towns of Bolivar, West Virginia and the town of Harpers Ferry. During the American Civil War, it was the site of the October 1861 Battle of Bolivar Heights, during which Confederate States Army colonel Turner Ashby failed to capture the heights from Union commander John White Geary. In 1862, the Bolivar Heights were used by Confederate general Stonewall Jackson to bombard Harpers Ferry, which was attacked during the Maryland Campaign. It was also attacked many other times, including Jubal Early's invasion of Maryland in 1864. There are cannon and a defensive trench preserved from the Civil War today, and it is one of the designated historical locations of the National Park Service, part of the Harpers Ferry National Historical Park.