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Routes
MTB trails
United States
California
San Mateo County

Thornewood Open Space Preserve

The best MTB trails in Thornewood Open Space Preserve

4.8

(101)

1,436

riders

51

rides

Looking for the best mountain biking routes in Thornewood Open Space Preserve? Then browse our collection of mtb rides around this beautiful natural park in San Mateo County below — and discover more of on your next visit.

Last updated: December 9, 2025

5.0

(2)

37

riders

1. Stevens Creek Nature Trail loop from Portola Valley

25.7km

03:08

620m

620m

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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Hard

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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4.6

(9)

176

riders

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate

5.0

(3)

32

riders

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Browse the best MTB trails in other regions.

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