Corriganville Movie Ranch was a working film studio and movie ranch for outdoor location shooting, as well as a Western-themed tourist attraction. The ranch, owned by actor and stuntman Ray "Crash" Corrigan, is located in the foothills of the Santa Susana Mountains in the Santa Susana Pass area of Simi Valley in eastern Ventura County, California. The site is currently a public park in the City of Simi Valley, called Corriganville Park, and operated by Rancho Simi Recreation and Park District.
Built on land purchased by Corrigan in 1937, the ranch provided scenery as well as man-made structures and sets, and served as the background scenery for movies and television programs such as Fort Apache, Buffalo Bill in Tomahawk Territory, The Robe, The Lone Ranger, The Adventures of Rin Tin Tin, Sky King, Circus Boy, and Star Trek.
The visual environment was that of a picturesque California oak woodland. The ranch provided terrain such as lakes, mountains, caves, rock outcroppings and overhangs, and large boulders. The small man-made lake featured a cliff waterfall, as well as an underwater bunker with thick-glassed windows that would allow underwater scenes to be shot, while keeping the camera and crew dry.
The property included the Army fort built for John Ford's 1947 film Fort Apache that was subsequently rented to many other film productions by Corrigan.