The park is the former location ranch of 20th Century Fox studios who owned the land between 1946 and 1974. They shot many films and television programs here including M*A*S*H between 1972 – 1983.
M*A*S*H, a deft blend of drama and comedy, was just enough to take the minds of millions of Americans off of what was really happening on the other side of the Pacific during the Vietnam War era. M*A*S*H grew to become a landmark television series that garnered over 100 Emmy nominations during its eleven season, 251 episode run.
Shooting M*A*S*H on location was much like a real M.A.S.H. unit would operate. Electricity was sourced from powerful generators, water came from tanker trucks and bathroom facilities weren’t much more than porta-potties such as those commonly found at construction sites (although they were definately a step up from the latrines on the show). On a M*A*S*H 30th Anniversary special that aired in 2002, Alan Alda (“Hawkeye”) observed that shooting at the Fox Ranch added to the realism of a show set amongst daily hardship and making do in minimal conditions.
The filming location is a popular hiking destination. It is a roughly 5 mile round trip hike from the main parking lot trailhead. Most of the route is flat, but there is one somewhat significant hill in the middle of the route.