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United States
California
Marin County

Camino Alto Open Space Preserve

The best MTB trails in Camino Alto Open Space Preserve

4.6

(230)

2,454

riders

90

rides

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

Last updated: December 16, 2025

4.5

(2)

12

riders

1. Fern Creek and spring – Railroad Grade Fire Road loop from Mill Valley

44.8km

03:49

960m

960m

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

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Hard

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

Moderate
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4.9

(20)

132

riders

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

Hard

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

Moderate

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

Hard
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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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