For eleven years on M*A*S*H, the gorgeous landscape of Southern California's Malibu Creek State Park served as the backdrop of a war-torn Uijeongbu, South Korea. The classic sitcom set during the Korea War placed its 4077th Mobile Army Surgical Hospital at the foot of the Santa Monica Mountains. The old wooden sign that gave directions to Boston, Burbank, Seoul and beyond can still be found there staked in the savannah grass.

Rewind the clock four decades, and one can take a peek at the production of the timeless series. We gathered ten pictures (and one map) to give a sense of the look and mood of the M*A*S*H production. Unsurprisingly, smiles were all around.

Let's take a peek at the cast's camaraderie, Alda behind the camera, and a visit from British royalty.

Alan Alda and Mike Farrell film a scene.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

Mike Farrell, Loretta Swit, Alan Alda, Harry Morgan and David Ogden Stiers raise a toast and a cake at a 7th anniversary cast party.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

Alda takes a rest on set. We do not know the name of the dog.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

McLean Stevenson, Alan Alda and Wayne Rogers in the hot tub.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

A good look at the set.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

Alda directs the finale episode.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

Even back then, actors were constantly on their phones.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

Prince Charles pops in and chats with Alda.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

Horsing around in the hay.

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

Jamie Farr was smoking hot in his Scarlett O'Hara dress from "Major Ego."

Copyright Â©20th Century Fox Film Corp. All rights reserved / Courtesy Everett Collection

This production diagram of the set gives you a great sense of the 4077th's spatial orientation.

Image: Malibu Creek State Park Image: Malibu Creek State Park

Alda and William Christopher film a scene on the Malibu Creek State Park set.

The Everett Collection

Farr gives Burbank the thumbs up.

The Everett Collection

A true saint.

The Everett Collection

Executive producer Burt Metcalfe poses with his stars.

The Everett Collection

Susan Oliver, who played Vina in the Star Trek pilot, "The Cage," sat in the director's chair for the season 11 premiere, just one of her two TV directing credits.

The Everett Collection

Kellye Nakahara and Alda share a happy dance.

The Everett Collection

Alda, Swit and Rogers raise eyebrows.

The Everett Collection

Gwen Verdon, former spouse of Bob Fosse, hugs Harry Morgan on the set of "That's Show Biz."

The Everett Collection

Farr sparkles in his Cleopatra dress.

The Everett Collection

Morgan and Barbara Townsend (Mildred) play husband and wife on the set of AfterMASH.

The Everett Collection

Farr hammers home — Toledo was Klinger's hometown.