Camp Casey (Korean: 캠프 케이시) is a U.S. military base on Soyosan Mountain in Dongducheon (also sometimes spelled Tongduchŏn or TDC), South Korea, 40 miles (64 km) north of Seoul, South Korea. Camp Casey was named in 1952 after Major Hugh Boyd Casey, who was killed in a plane crash near the camp site during the Korean War. Camp Casey is one of several U.S. Army bases in South Korea near the Korean Demilitarized Zone (DMZ). Camp Casey, Camp Hovey, and neighboring Camp Castle and Camp Nimble hold the main armor, 7th Division of a bridging engineer company as well, and mechanized infantry elements of the 2nd Infantry Division (United States) in South Korea. Camp Castle has been largely abandoned, with only a warehouse remaining. Camp Nimble was severely damaged during a flood in July 2011, and has been abandoned except for an unmanned aerial vehicle (UAV) company. Camp Casey spans 3,500 acres (14 km2) and is occupied by 6,300 military personnel and 2,500 civilians.