Swamp, The - Nickname of the Army surgeon's living quarters on the Korean War medical comedy M*A*S*H/CBS/1972-83. Bivouacked in drafty army tents, the doctors and nurses of the 4077th Mobile Army Surgical Hospital reluctantly made the best of their military assignment near the front lines. Besides their cots, footlockers, a small wood burning stove in the middle of their meager living space, their tent included such personal items as a tabletop moonshine still, martini glasses, and nudist magazines.

The Swamp's senior residence was Captain Benjamin Franklin "Hawkeye" Pierce (Alan Alda) who first shared the tent with Captain John "Trapper John" McIntire (Wayne Rogers) and a weasel of a surgeon Major Frank Burns (Larry Linville). When Trapper transferred stateside, Captain B.J. Hunnicutt (Mike Farrell) became the tent's newest occupant. And when Frank Burns went AWOL he was replaced by the stuffy Boston bred physician Major Charles Emerson Winchester III (David Ogden Stiers) who often played classical recordings on his hand-crank record player.

When the series ended, the stage sets for both The Swamp and their Operating Theater were donated to the Smithsonian in Washington, D.C. The locations exteriors for the series were shot in Malibu Creek State Park (formerly the Century Ranch, part of the Twentieth Century-Fox) located at 1925 Las Virgenes Road off the Ventura Freeway. The canyon sites used for filming M*A*S*H are about three miles from the main gate.