Key to the Civil War Tomb of the Unknown Dead, Arlington Cemetery

The Tomb of the Unknown Civil War Dead was dedicated in September 1866 and contains the remains of 2,111 Civil War soldiers gathered from the fields of Bull Run and the route to the Rappahannock. It was the first memorial at Arlington Cemetery dedicated to unidentified soldiers. The vault, which contains the remains of both Union and Confederate dead, is located on the site of the former Custis and Lee family flower garden.