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United States
California
Los Angeles County

San Gabriel Mountains

The best MTB trails in the San Gabriel Mountains

4.5

(52)

1,222

riders

100

rides

Mountain biking in the San Gabriel Mountains is one of the best ways to explore more of this area of Los Angeles County. To help you experience the best the …

Last updated: November 23, 2025

50

riders

1. Mt. Lowe East Trail & Middle Sam Merrill Trail — Altadena

26.0km

03:33

1,220m

1,220m

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

Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

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

Moderate

Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

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

Moderate

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

Moderate

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

Hard

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

Moderate
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