Santa Susana Pass State Historic Park

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 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 NPS "Rim of the Valley" master plan for a hiking and equestrian trail corridor from the Santa Monica Mountains to the San Gabriel Mountains includes the park's trails and open space as an important link.