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MTB trails
United States
California
Marin County

Blithedale Summit Open Space Preserve

Routes
MTB trails
United States
California
Marin County

Blithedale Summit Open Space Preserve

The best MTB trails in Blithedale Summit Open Space Preserve

4.7

(245)

2,612

riders

114

rides

Mountain biking in Blithedale Summit Open Space Preserve offers diverse landscapes across 639 acres on the northern flank of Mount Tamalpais. The preserve features a mix of deep redwood and Douglas-fir forests, open grasslands, and dense chaparral. Its network of fire roads provides extensive mountain biking routes, connecting to broader trail systems within Mount Tamalpais State Park. From higher elevations, riders can experience panoramic views of the San Francisco Bay and surrounding Marin County hills.

Best mountain bike trails in…

Last updated: May 27, 2026

4.8

(8)

108

riders

#1.

Old Railroad Grade and Hoo-Koo-E-Koo Loop

24.0km

02:39

750m

750m

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

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Moderate

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

Moderate
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4.9

(14)

82

riders

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

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

Hard
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Tips from the Community

serge 🚶🐉😊🇧🇪
October 12, 2025, Marin Museum of Bicycling

An absolute must-see for cycling enthusiasts! This museum in Fairfax tells the story of nearly 200 years of cycling history, from 19th-century velocipedes to modern racing bikes. It's also home to the Mountain Bike Hall of Fame, featuring unique specimens and stories about the pioneers of mountain biking. The collection is impressive and authentic—no replicas, but real bicycles that showcase the evolution of technology and design. An inspiring place where you can truly feel the passion for cycling.

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Corte Madera Larkspur Path crosses bike trails along canals, car free

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Redwood-San Andreas Wetlands overlooks at the crossing of three bike trails

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Simply a safe and fun multi use path, use it to connect to the Corte Madera creek path going north, or head south to hit Camino Alto for a bit of a climb up and over a hill to Mill Valley

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Sue
November 1, 2023, Pantoll Road

Pantoll Road is a beautiful, mostly paved route through Mount Tamalpais State Park, connecting the Panoramic Highway to Ridgecrest Boulevard. It winds closely along the curves of the hillside, with some shade from the trees in some spots. There are fantastic views along the way of San Francisco and the Marin Headlands, with incredible viewpoints over the Pacific coastline.

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Sue
October 27, 2023, Fairfax

This town, nestled in the forested hills among unspoiled open space in Marin County, is a nice respite from the large nearby metropolis. It is a quirky, hip place with a small-town vibe filled with restaurants, music venues, and independent shops. Fairfax is home to many musicians who live here, and on any given night, you can find live music featuring local and national touring acts jamming in a relaxed, casual atmosphere. It has a very cycle-friendly culture, and be sure to take the time to visit the Museum of Bicycling while you are here!

2

0

Non-profit exhibit of some cool historic bikes, including some of the mountain bikes invented here

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There is a great view of the northern point of Alpine lake where a small channel feeds over to Bon Tempe Lake. This is a great place to drop a line, or just enjoy the aquatic views.

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Frequently Asked Questions

How many mountain bike trails are available in Blithedale Summit Open Space Preserve?

Blithedale Summit Open Space Preserve offers over 120 mountain bike trails, catering to various skill levels. You'll find a mix of easy, moderate, and difficult routes to explore.

Are there any beginner-friendly mountain bike trails in the preserve?

Yes, there are 13 easy mountain bike routes in Blithedale Summit Open Space Preserve. These trails are generally wider fire roads, suitable for those new to mountain biking or looking for a more relaxed ride. While specific beginner routes aren't highlighted in the top picks, the preserve's network includes gentler paths.

What kind of terrain can I expect on the mountain bike trails?

The preserve features diverse terrain, transitioning from deep redwood and Douglas-fir forests to open grasslands and dense chaparral. Most mountain biking is on fire roads, which offer challenging workouts and connect to the broader Mount Tamalpais trail system. You'll also encounter panoramic views of the San Francisco Bay from higher elevations.

Are there any loop trails for mountain biking?

Yes, many routes in Blithedale Summit Open Space Preserve are loops. For example, the Old Railroad Grade and Hoo-Koo-E-Koo Loop is a popular 14.9-mile option, and the Mountainbike loop from Mill Valley is an 8.8-mile trail that takes you through varied landscapes.

What can I see along the mountain bike trails in Blithedale Summit Open Space Preserve?

As you ride, you can enjoy varied habitats, from redwood forests to open grasslands. Higher elevations offer breathtaking panoramic views of the San Francisco Bay, Marin Headlands, and surrounding hills. Notable trails and features include Blithedale Ridge Fire Rd and Middle Summit / Escalon Fire Road. During the rainy season, you might even spot seasonal streams and small waterfalls.

Is Blithedale Summit Open Space Preserve suitable for family mountain biking?

While the preserve offers a range of difficulties, including 13 easy routes, the primary trails are fire roads which can be challenging. Families with younger children or less experienced riders might prefer the easier, wider paths. Always check the specific trail's difficulty and elevation profile before heading out with family.

Are e-bikes allowed on the trails?

Yes, e-bikes are permitted on the fire roads within Blithedale Summit Open Space Preserve, offering a great way to explore the extensive trail network and tackle some of the more challenging climbs.

What is the best time of year for mountain biking in Blithedale Summit Open Space Preserve?

The preserve offers year-round riding opportunities. The varied terrain, including redwood forests, provides shade during warmer months. During the rainy season, seasonal streams and waterfalls add to the natural beauty, though trails might be muddier. Always check local weather conditions before your ride.

Where can I find parking for mountain biking in the preserve?

Blithedale Summit Open Space Preserve is accessible from various communities like Corte Madera, Larkspur, and Mill Valley. Parking is typically available at trailheads or designated areas near these access points. Specific parking details often depend on your chosen starting point for a route.

What do other mountain bikers enjoy most about riding here?

The area is highly rated by the komoot community, with an average score of 4.7 stars from over 280 reviews. Riders often praise the diverse landscapes, the challenging fire roads, and the breathtaking panoramic views of the San Francisco Bay and surrounding hills. The extensive network of trails connecting to Mount Tamalpais is also a significant draw.

Are there any cafes or places to eat near the trails?

Yes, the preserve links to communities such as Mill Valley, Corte Madera, and Larkspur. You can find various cafes and dining options in these nearby towns to refuel after your ride. Mill Valley, for instance, offers several cafes, while Corte Madera has pubs and other eateries.

Do I need a permit for mountain biking in Blithedale Summit Open Space Preserve?

Generally, permits are not required for mountain biking on the designated trails within Blithedale Summit Open Space Preserve. However, it's always a good practice to check the latest regulations from Marin County Parks or the preserve's official website for any updates or specific rules. You can find more information about the preserve at Marin County Visitor.

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