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Routes
MTB trails
United States
California
Marin County

Baltimore Canyon Open Space Preserve

Routes
MTB trails
United States
California
Marin County

Baltimore Canyon Open Space Preserve

The best MTB trails in Baltimore Canyon Open Space Preserve

4.5

(247)

2,575

riders

117

rides

Mountain biking in Baltimore Canyon Open Space Preserve offers a varied landscape characterized by shaded forests of redwoods and Douglas firs, diverse woodlands, and a network of multi-use fire roads. The preserve features significant elevation changes, with trails often skirting along Larkspur Creek. Riders can explore gravel fire roads like the Indian Fire Road and the Hoo-Koo-E-Koo Fire Road, which provide scenic views of San Francisco Bay and the Marin peninsula. The trail network connects to adjacent parklands like Mount…

Last updated: April 27, 2026

4.8

(8)

111

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

4.9

(7)

46

riders

16.8km

01:39

370m

370m

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

5.0

(1)

5

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
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Popular around Baltimore Canyon Open Space Preserve

Hiking in Baltimore Canyon Open Space Preserve

Road Cycling Routes in Baltimore Canyon Open Space Preserve

Running Trails in Baltimore Canyon Open Space Preserve

Cycling in Baltimore Canyon Open Space Preserve

Gravel biking in Baltimore Canyon Open Space Preserve

Tips from the Community

Eric Cross
August 10, 2025, Phoenix Lake

log cabin at phoenix lake

1

0

Traveler
November 6, 2023, West Point Inn

Great stop over along the trails on Mount Tam at the intersection of Old Railroad Grade, Old Stage, and Nora trails. Sit and enjoy the views from the wrap-around porch of this former hotel/restaurant built over 100 years ago when 'the crookedest railroad' carried weekend tourists up to the summit of Mount Tam. Today volunteers maintain the idyllic inn, provide hiking information and self-serve honor-based snacks and refreshments.

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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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From easiest to hardest climbs out of phoenix lake from this junction: -Shaver Grade, easy grade, longer, shaded and pretty -Eldridge Grade, medium, good length and can connect you to mt tam east peak -Fish Grade fire road, very steep, we hiked the bikes

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georgie
August 10, 2023, Water trough 💧

I don’t think I’ve actually seen much water in this trough, if biking up from phoenix lake, this is a nice place to catch your breath on this climb before finishing it off and descending down to Lake Lagunitas.

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On Shaver Grade Road, you get to ride along the incredibly blue waters of Phoenix Lake.

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After looping around West Point the Railroad Grade trail snakes through open and tree-lined sections with fun curves.

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On clear days views open up along the trail across the bay and including the San Francisco skyline

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Frequently Asked Questions

How many mountain bike trails are available in Baltimore Canyon Open Space Preserve?

There are over 125 mountain bike trails in Baltimore Canyon Open Space Preserve, offering a wide range of options for different skill levels. You'll find everything from easy paths to more challenging routes with significant elevation changes.

What kind of terrain can I expect when mountain biking in Baltimore Canyon Open Space Preserve?

The preserve features a varied landscape with shaded forests of redwoods, Douglas firs, maples, and madrone trees. Trails often skirt along Larkspur Creek, and many are wide fire roads. You'll encounter a mix of gradual paths and areas with substantial climbs, connecting to broader trail systems in Marin County.

Are there any family-friendly mountain bike trails in Baltimore Canyon Open Space Preserve?

Yes, the preserve offers several easier routes suitable for families. While specific 'family-friendly' designations aren't always explicit, routes with less elevation gain and wider fire roads are generally more accessible. For a moderate option, consider the Marin Three Lakes loop, which winds through varied terrain.

What are the best times of year to go mountain biking in Baltimore Canyon Open Space Preserve?

The preserve is enjoyable year-round. During warmer months, the dense, shaded forests provide a cool atmosphere. In winter, after significant rainfall, the trees are covered in lush moss, and seasonal waterfalls like Dawn Falls are at their most impressive. Spring brings wildflowers, and autumn offers vibrant colors from the big-leaf maples.

Are there any notable natural features or landmarks to see along the mountain bike trails?

Absolutely. You can ride along Larkspur Creek, which flows vigorously after winter rains. A prominent natural attraction is Dawn Falls, a 30-foot waterfall that is particularly impressive after significant rainfall. You can find a trail junction leading to it at Ladybug Trail - Dawn Falls Trail junction. The Hoo-Koo-E-Koo Fire Road Trail also offers stunning scenic views of the San Francisco Bay and the Marin peninsula.

What do other mountain bikers enjoy most about mountain biking in Baltimore Canyon Open Space Preserve?

The area is highly rated by the komoot community, with an average score of 4.6 stars from over 300 reviews. Mountain bikers often praise the diverse terrain, the cool, shaded forests, and the connectivity to a broader network of trails that allow for extended rides and varied experiences.

Are there any mountain bike routes that offer panoramic views?

Yes, several routes provide excellent views. The Old Railroad Grade and Hoo-Koo-E-Koo Loop offers scenic views of the San Francisco Bay and the Marin peninsula. Additionally, the King Mountain Loop (accessible via connections) is known for panoramic views of the surrounding valley, the San Francisco Bay Area, and even the Richmond-San Rafael Bridge.

Are there any loop trails for mountain biking in the preserve?

Yes, many of the mountain bike routes in Baltimore Canyon Open Space Preserve are loops, allowing for a continuous ride without retracing your steps. Examples include the Old Railroad Grade and Hoo-Koo-E-Koo Loop and the Phoenix Lake – Fish Gulch trail junction loop from Ross.

What is the difficulty level of mountain biking trails in Baltimore Canyon Open Space Preserve?

The preserve offers a range of difficulties. While there are 11 easy routes, the majority (78) are moderate, and 36 are considered difficult. This means you can find trails suitable for beginners looking for gradual paths, as well as more experienced riders seeking routes with significant climbs and elevation changes, such as the Mount Tamalpais West Point loop from Sausalito.

Can I connect to other trail systems from Baltimore Canyon Open Space Preserve?

Yes, a key feature of Baltimore Canyon Open Space Preserve is its excellent connectivity. It links to adjacent parklands like King Mountain, Blithedale Summit, and Mount Tamalpais. This allows for extended rides and more challenging routes, integrating into the broader Marin County trail network.

Are there any specific fire roads recommended for mountain biking?

Many fire roads within the preserve are excellent for mountain biking. The Hoo-Koo-E-Koo Fire Road Trail is a popular winding route with scenic views. The Indian Fire Road trail offers initial climbs and descents along a ridgeline. The Southern Marin Line Rd Trail is a wide forest road passing through pleasant redwood groves.

What is the typical duration for a mountain bike ride in the preserve?

Ride durations vary significantly based on the trail and your pace. For example, the Old Railroad Grade and Hoo-Koo-E-Koo Loop typically takes around 2 hours and 39 minutes, while the longer Mount Tamalpais West Point loop from Sausalito can take about 3 hours and 14 minutes.

Most popular routes in Baltimore Canyon Open Space Preserve

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