Santa Susana Pass State Historic Park is a California State Park of approximately 680acre located on the boundary between Ventura and Los Angeles counties, between the communities of Chatsworth and Simi Valley. Geologically, the park is located where the Simi Hills meet the Santa Susana Mountains. Here in the western part of the Transverse Ranges, the land is dominated by high, narrow ridges and deep canyons covered with an abundant variety of plant life. The park offers panoramic views of the rugged natural landscape as a striking contrast to the developed communities nearby. The park is also rich in archaeological, historical and cultural significance.HistoryThe park includes a 174acre National Register of Historic Places property consisting of historic features and sites. This includes the Tongva, Chumash, and Tataviam Native American people's trading routes and village sites remains.It also includes portions of the Old Santa Susana Stage Road. The Santa Susana stagecoach road was the main route for mail and travelers between Los Angeles and the rest of Southern California northwest to Simi Valley, Santa Barbara, and the San Francisco Bay Area from 1861 until 1876, when the rail connections began between Los Angeles and the San Francisco Bay Area through the Newhall Pass opened. The stage road was declared City of Los Angeles Historic-Cultural Monument #92 (designated 01/05/1972) and Ventura County Historical Landmark #104 (designated 10/21/1986).
