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Road cycling routes
United States
California
Marin County

Baltimore Canyon Open Space Preserve

The best traffic-free bike rides in Baltimore Canyon Open Space Preserve

4.4

(162)

7,997

riders

12

rides

Road cycling in Baltimore Canyon Open Space Preserve offers a diverse landscape characterized by shaded redwood and Douglas fir forests, flowing creeks, and panoramic views of San Francisco Bay and the Marin Peninsula. The preserve features a network of fire roads and connecting routes that provide varied terrain suitable for no traffic road cycling. Cyclists can experience both gradual climbs through wooded areas and more challenging ascents towards scenic viewpoints. This region provides a tranquil natural setting for exploring on…

Last updated: May 14, 2026

1.0

(1)

212

riders

#1.

Pantoll Road – Mount Tamalpais Summits loop from Mill Valley

43.4km

02:33

1,000m

1,000m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

Embark on a difficult road cycling adventure from Downtown San Rafael, looping through Alpine Dam and up to Mount Tamalpais East Peak. This challenging route spans 40.6 miles (65.4 km)…

Hard
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5.0

(2)

128

riders

Embark on the Pan Toll Road via Panoramic Highway for a rewarding racebike experience. This moderate route covers 19.3 miles (31.0 km) and challenges you with 2344 feet (714 metres)…

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

5.0

(1)

63

riders

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Popular around Baltimore Canyon Open Space Preserve

Traffic-free bike rides in Baltimore Canyon Open Space Preserve

Traffic-free bike rides in Baltimore Canyon Open Space Preserve

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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Traveler
June 27, 2025, Seven Sisters

Paved section riding on the ridge between Pan Toll Road and Fairfax-Bolinas Road where it contains as Bolinas Ridge Trail, with spectacular views along the way toward the Pacific Ocean and Stinson Beach far below. The road is open during daylight hours only, in winter that means 9am to sunset.

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Mount Tam East Peak offers some of the most majestic views north of the bay. From this vantage point, you can see all of Marin, along with Point Reyes to the north and Oakland and San Francisco to the south. The stunning panoramic vistas make the journey well worth the effort. There are restrooms and picnic tables, ideal for a snack or lunch while you capture some incredible photos.

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Andrus
May 26, 2025, Alpine Dam

Constructed in 1917 this dam forms Alpine Lake, which sites between Kent and Bon Tempe Lakes. The road across the top of the dam make it a great place to ride on a loop around the lake.

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Andrus
May 25, 2025, Alpine Lake

This lake was formed by the building of Alpine Dam in 1917. It sits between Kent Lake and Bon Tempe Lake, and is popular for a variety of outdoor activities.

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Campground with water fountain

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Often busy on weekends, this is a great spot to take moment before/after summiting Mt Tam. There are spigots to fill up water and bathrooms that are open during park hours. The parking lot is very close for those that drive up. There is access to MANY trails for those on foot/bike.

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The Pantoll Campground is a First-come/first-serve site in Mt. Tamalpais State Park. Each site has a barbeque grill, a fire ring, and a picnic table. You need to pay for the site at the Ranger Station as you enter the park.

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Frequently Asked Questions

How many no traffic road cycling routes are available in Baltimore Canyon Open Space Preserve?

There are 10 dedicated no traffic road cycling routes in Baltimore Canyon Open Space Preserve, offering a variety of experiences for different skill levels.

What are the difficulty levels of the road cycling routes?

The routes cater to a range of abilities. You'll find 1 easy route, 4 moderate routes, and 5 difficult routes, ensuring options for both casual rides and challenging climbs.

Are there family-friendly no traffic road cycling routes?

While many routes in the preserve involve climbs, there is 1 easy route available. For families, consider routes that utilize the wider, unpaved fire roads which often have more gradual grades, though these are typically better suited for gravel bikes. Always check the route details for elevation and surface type to ensure it meets your family's needs.

When is the best time of year to road cycle in Baltimore Canyon Open Space Preserve?

The preserve is enjoyable year-round. In summer, the towering redwoods and Douglas firs provide cool shade. During winter and spring, Larkspur Creek is full, and Dawn Falls is particularly impressive after heavy rains. Autumn brings vibrant colors from the big-leaf maples, making it a beautiful time to ride.

What natural features or landmarks can I see along these routes?

You can experience majestic redwood and Douglas fir forests, and follow the paths of Larkspur Creek. A notable attraction is Dawn Falls, especially after heavy rains. Some routes, like those connecting to the Hoo-Koo-E-Koo Fire Road Trail or Indian Fire Road trail, offer panoramic views of San Francisco Bay and the Marin Peninsula.

Are there any loop road bike trails in Baltimore Canyon Open Space Preserve?

Yes, there are several loop options. For example, the Alpine Dam & Mount Tamalpais East Peak loop from Downtown San Rafael offers a challenging ride, and the Alpine Lake – Alpine Dam loop from San Anselmo provides a moderate option.

What kind of terrain and elevation can I expect on these no traffic routes?

Expect varied terrain. While some routes utilize paved roads, many incorporate wide, unpaved fire roads like the Southern Marin Line Rd Trail, which meander through wooded areas. You'll encounter gradual grades, but also challenging climbs, such as those leading to Blithedale Ridge, offering diverse experiences for different fitness levels.

What do other cyclists say about road cycling in Baltimore Canyon Open Space Preserve?

The area is highly rated by the komoot community, with an average score of 4.6 out of 5 stars from 165 ratings. Reviewers often praise the tranquil natural setting, the majestic forests, and the rewarding views from higher elevations.

Can I expect to see wildlife while cycling?

Yes, the preserve is home to diverse wildlife. Keep an eye out for steelhead in Larkspur Creek, California giant salamanders, and various bird species, including pileated woodpeckers, especially in the quieter sections of the routes.

Are there cafes or amenities near the routes?

While the preserve itself is a natural area, many routes start or pass through nearby towns like San Rafael, Mill Valley, San Anselmo, or Larkspur, where you can find cafes, restaurants, and other amenities to refuel before or after your ride.

Are there routes suitable for advanced road cyclists?

Absolutely. With 5 difficult routes available, advanced cyclists can find challenging rides. Routes like the Alpine Lake – Alpine Dam loop from Larkspur, with significant elevation gain, provide ample opportunity for strenuous training and breathtaking views.

Most popular routes in Baltimore Canyon Open Space Preserve

Family-friendly hikes in Baltimore Canyon Open Space Preserve

Most popular attractions in Baltimore Canyon Open Space Preserve

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