Las Llajas (pronounced YAH huhs)[1] Canyon within the Marr Ranch Parkland contains the 1920s residential subdivision called Marrland and the surrounding open space area administrated by the Rancho Simi Recreation and Park District (RSRPD) and is located in northeastern Simi Valley, CA.

[2][3][4][5] The Las Llajas and nearby Chivo Canyons are parts of the Marr Ranch Parkland, Marrland residential subdivision, and are situated at the foothills on the south side of the Santa Susana Mountains.

[8] The canyon is visited for recreational activities as rock climbing, biking, hiking, wildlife observation, photography, running, picnicking, and horseback riding.

[10][11] It is likely a misspelling of the Spanish las llagas, which translates to "the wounds", and referred to the stigmata of a Roman Catholic saint.

[13][14] Llajas Canyon is home to fauna such as the Mountain lion, California badger, Red-tailed hawk, Ring-tailed cat, Virginia opossum, Gray fox, Coyote, Bobcat, Mule deer, Southern Pacific rattlesnake, and Barn owl.