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Los Angeles County

Turnbull Debris Basin – Turnbull Canyon loop from La Serna High School

Los Angeles County

Turnbull Debris Basin – Turnbull Canyon loop from La Serna High School

Hard

4.7

(3350)

8,652

riders

Turnbull Debris Basin – Turnbull Canyon loop from La Serna High School

02:06

29.0km

540m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: September 25, 2026

Waypoints

A

Start point

Parking

1

7.48 km

Turnbull Debris Basin

Highlight • Structure

As you hike near Turnbull Debris Basin, observe its crucial function in storing runoff and sediment, acting as a safeguard against downstream flooding and sedimentation, and protecting human life and …

Tip by

2

10.6 km

Whittier Hill

Highlight • Viewpoint

The graffiti-covered water tower at the top of Whittier Hill might not be the most alluring of landmarks, but take a minute to turn and look around: You have some …

Tip by

3

12.3 km

Turnbull Canyon

Highlight • Canyon

Ride through Turnbull Canyon and be rewarded with stunning views of Los Angeles County and surround yourself with a mix of natural beauty and historical intrigue. The road climbs with …

Tip by

22.1 km

Puente Hills Preserve

Nature Reserve

B

29.0 km

End point

Parking

Way Types & Surfaces

Way Types

8.88 km

7.15 km

6.60 km

5.98 km

285 m

< 100 m

Surfaces

14.8 km

7.15 km

6.41 km

529 m

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Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (360 m)

Lowest point (80 m)

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Weather

Powered by Foreca

Tuesday 6 October

38°C

24°C

0 %

Additional weather tips

Max wind speed: 3.0 km/h

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