The Santa Clara River and its tributaries carve numerous canyons around the Santa Clarita Valley. Many streets in the region are named after these canyons, including Bouquet Canyon Road, Soledad Canyon Road, San Francisquito Canyon Road, Sand Canyon Road, Wiley Canyon Road, Hasley Canyon Road, Plum Canyon Road, Whites Canyon Road, Haskell Canyon Road, Pico Canyon Road, Vasquez Canyon Road, Placerita Canyon Road, Rye Canyon Road, Towsley Canyon Road, Wildwood Canyon Road, Lost Canyon Road, and Seco Canyon Road. The Santa Clara River itself flows through Soledad Canyon, forming a natural boundary between the San Gabriel and Sierra Pelona mountain ranges.