Chumash Trail

The Rocky Peak, Las Llajas, and Chumash Loop is a demanding jogging route that showcases the rugged beauty of the Santa Susana Mountains. You will traverse varied terrain, from the shaded oak groves and creek beds of Las Llajas Canyon to exposed, rocky fire roads and technical singletrack on the Chumash Trail. The views from the ridge are expansive, sweeping across the San Fernando and Simi Valleys, making the significant effort worthwhile.

This difficult 16.5 miles (26.5 km) loop involves a substantial 2979 feet (908 metres) of elevation gain, typically taking around 3 hours and 16 minutes to complete. Be sure to bring ample water, as much of the route, particularly the Rocky Peak Fire Road, offers little shade. The trail is popular with mountain bikers, so stay alert, and consider visiting in spring for the best wildflower displays.

Beyond the physical challenge, this trail is notable for its geological features, including "Fossil Point" with its ancient seashells, hinting at a past as a marine lagoon. The area is also a vital wildlife corridor, so you might spot deer or various birds. Historically, Las Llajas Canyon has seen use as an oil field, with old pumps still visible, adding a layer of historical intrigue to your run.