Turnbull Debris Basin – Turnbull Canyon loop from Whittier

If you're looking for a diverse mountain biking experience right outside Whittier, the Turnbull Debris Basin – Turnbull Canyon loop delivers. This moderate 17.8-mile (28.7 km) route packs in 2360 feet (719 metres) of climbing over roughly 2 hours and 39 minutes, offering a fantastic workout with rewarding views for intermediate riders.

What to expect on Turnbull Debris Basin – Turnbull Canyon loop from Whittier

Expect a journey through varied terrain, from fast and smooth sections to challenging climbs and technical descents. You'll navigate tree-covered singletrack and fire roads, including grueling ascents like Workman Ridge with its 9.4% grade. The effort is well worth it, as you'll be rewarded with expansive views of Los Angeles County, culminating in 360-degree vistas from the peak of Turnbull Canyon, often marked by a graffiti-covered water tower. Some parts are drier and chaparral-covered, while others offer more natural beauty. This route is best for riders comfortable with varied conditions and some serious climbing.

Planning your visit

Before you head out, be aware that the area is usually closed for 48 hours after significant rain to prevent trail damage. Shade can be scarce at the top during midday, so plan your water intake accordingly, especially on warmer days. The trails are multi-use and shared with hikers, so always be courteous, and keep an eye out for rattlesnakes, which have been sighted in the area. Access points like Beverly Blvd lead to Rose Hills Fire Rd, a common starting point for exploring this network.

Trail details

• Distance: 17.8 miles (28.7 km)
• Elevation gain: 2360 feet (719 metres)
• Difficulty: moderate
• Estimated time: 2 hours and 39 minutes