Fort Magruder was a 30-foot (9.1 m) high earthen fortification straddling the road between Yorktown and Williamsburg, Virginia, just outside the latter city (and former Virginia state capital) during the American Civil War. At the center of the Williamsburg Line, it was also referred to as Redoubt Number 6. Fort Magruder was strategic in defending Williamsburg during the Peninsula Campaign in 1862 due to its location near the junction of the two roads that led to Williamsburg from Yorktown and Lee's Mill to the east. It became a key point during the Battle of Williamsburg on May 5, 1862.