Turnbull Debris Basin – Schabarum Trail loop from Whittier

If you're looking for a serious mountain biking challenge in the Whittier area, the Turnbull Debris Basin – Schabarum Trail loop delivers. This difficult 28.3-mile (45.6 km) route packs in 3866 feet (1178 metres) of climbing, taking around 4 hours and 29 minutes to complete. It's a fantastic option for experienced riders seeking varied terrain and expansive views across Los Angeles County.

What to expect on Turnbull Debris Basin – Schabarum Trail loop from Whittier

Expect a dynamic ride through diverse landscapes, combining the rolling hills of Turnbull Canyon with the trails around Peter F. Schabarum Regional Park. You'll navigate wide fire roads, doubletrack, and technical singletrack, with sections like Workman Ridge testing your climbing prowess with steep grades. The route offers panoramic views of the surrounding hills, urban sprawl, and even downtown Los Angeles on clear days. Keep an eye out for seasonal wildflowers like thistle and wild mustard, and the imposing power transmission towers that mark the landscape. This loop is best suited for experienced mountain bikers who enjoy a mix of fast, smooth sections and challenging climbs, with some rocky or overgrown segments adding to the adventure.

Planning your visit

Given the trail's length and elevation, plan to carry plenty of water, especially during warmer months. The area is popular with both mountain bikers and hikers, so be mindful of sharing the trails. While some segments are well-maintained, others, particularly in Turnbull Canyon, can be overgrown or subject to debris, so come prepared for varied conditions. Starting early in the day is advisable to make the most of the cooler temperatures and avoid potential crowds.

Trail details

• Distance: 28.3 miles (45.6 km)
• Elevation gain: 3866 feet (1178 metres)
• Difficulty: difficult
• Estimated time: 4 hours and 29 minutes