Drum Barracks was the Union Army's headquarters for Southern California and New Mexico during the Civil War. It consisted of 19 buildings on 60 acres (240,000 m2) in what is now Wilmington, with another 37 acres (150,000 m2) near the waterfront. Its junior officers' quarters has been preserved as the Drum Barracks Civil War Museum.[1] Its powder magazine stands on private property three blocks away, protected by a chain-link fence.