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Road cycling routes
United States
California
Marin County

Blithedale Summit Open Space Preserve

The best traffic-free bike rides in Blithedale Summit Open Space Preserve

4.5

(231)

9,788

riders

12

rides

No traffic road cycling routes in Blithedale Summit Open Space Preserve traverse a diverse landscape of redwood and Douglas-fir forests, open grasslands, and dense chaparral. The preserve spans 639 acres along Mount Tamalpais's northern ridge, offering varied terrain from steady ascents to "roller coaster" uphills and downhills. Cyclists can experience panoramic views of the Marin Headlands and San Francisco Bay from higher elevations.

Best no traffic road cycling routes in Blithedale Summit Open Space Preserve

  • The most popular no traffic road cycling route is Pantoll Road – Mount Tamalpais Summits loop from Mill Valley, a 29.6 miles (47.7 km) difficult trail that takes 2 hours 52 minutes to complete. This route features significant elevation gain as it climbs towards the Mount Tamalpais summits.
  • Another top favourite among local road cyclists is Alpine Lake – Alpine Dam loop from Larkspur, a difficult 47.3 miles (76.2 km) path. This route offers extensive riding through varied terrain, including substantial climbs around Alpine Lake and Dam.
  • Local road cyclists also love the Alpine Dam & Mount Tamalpais East Peak loop from Downtown San Rafael, a 40.6 miles (65.3 km) trail leading through forested areas and offering views towards Mount Tamalpais East Peak, often completed in about 3 hours 40 minutes.
  • Road cycling in Blithedale Summit Open Space Preserve is defined by redwood forests, chaparral-covered ridges, and fire roads that provide access to panoramic viewpoints. The network offers options for various ability levels, from moderate climbs to challenging ascents.
  • The routes in Blithedale Summit Open Space Preserve are highly rated by the komoot community with an average score of 4.6 stars from over 180 reviews. More than 8,000 road cyclists have used komoot to explore Blithedale Summit Open Space Preserve's varied terrain.

Last updated: July 10, 2026

156

riders

#1.

Pantoll Road – Mount Tamalpais Summits loop from Mill Valley

35.1km

02:10

940m

940m

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

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Hard

5.0

(2)

128

riders

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

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

Moderate

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

Hard

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

Moderate
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Popular around Blithedale Summit Open Space Preserve

Traffic-free bike rides in Blithedale Summit Open Space Preserve

Traffic-free bike rides in Blithedale Summit Open Space Preserve

Tips from the Community

Traveler
June 26, 2025, Miwok Trailhead ⛰️ Shoreline Highway summit

Just before Shoreline Rd drops to the Coast, or easterly to Mill Valley, it has a mostly gradual quarter mile, along which several trails merge. Here Miwok trail offers a wide gravel option to enter the unpaved Headlands trail system.

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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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Set beneath the towering trees of Mount Tam, Rock Springs is the perfect jumping-off point for scenic hikes and quiet picnics—where trails, wildlife, and wide-open views begin.

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Perched high on Mount Tam, the stone-built Mountain Theater offers sweeping views and timeless performances—where nature and art come together in one of California’s most breathtaking open-air stages.

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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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Poison oak on trail but other then that it is fun

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Frequently Asked Questions

How many no-traffic road cycling routes are available in Blithedale Summit Open Space Preserve?

There are 10 dedicated no-traffic road cycling routes in Blithedale Summit Open Space Preserve featured in this guide. These routes offer a range of experiences, from moderate climbs to more challenging ascents, all designed to keep you away from vehicle traffic.

What is the best time of year to go road cycling in Blithedale Summit Open Space Preserve?

The preserve is beautiful year-round, but spring (March-May) offers vibrant wildflowers and flowing seasonal streams, while fall (September-November) provides crisp air and clear views. During the rainy season, small waterfalls emerge, adding to the natural beauty. Always check local weather conditions before heading out.

Are there any easy, beginner-friendly no-traffic road cycling routes?

Yes, for those seeking a more relaxed ride, the Mount Tamalpais State Park – Mountain Home Inn loop from Tamalpais-Homestead Valley is a moderate option that offers a good introduction to the area's scenic beauty. The Old Railroad Grade, while not a specific route in this guide, is also known for its easy and steady ascent, making it accessible for beginners.

What kind of views can I expect on these no-traffic road cycling routes?

From higher elevations, you'll be treated to stunning panoramic views of the Marin Headlands and San Francisco Bay. On clear days, vistas can extend to San Pedro Mountain, San Quentin, Mount Diablo, and even Mount St. Helena. You'll also cycle through diverse landscapes, including redwood and Douglas-fir forests, open grasslands, and dense chaparral.

Are there any challenging no-traffic road cycling routes for experienced riders?

Absolutely. For experienced cyclists looking for a significant challenge, routes like the Pantoll Road – Mount Tamalpais Summits loop from Mill Valley and the Alpine Dam & Mount Tamalpais East Peak loop from Downtown San Rafael offer substantial elevation gains and distances, providing a rewarding workout with incredible scenery.

What do other road cyclists say about the no-traffic routes in Blithedale Summit Open Space Preserve?

The komoot community highly rates the road cycling experience here, with an average score of 4.6 stars. Reviewers often praise the serene, traffic-free nature of the fire roads, the diverse landscapes, and the breathtaking panoramic views from the higher ridges.

Are there any specific landmarks or points of interest along the no-traffic road cycling routes?

While cycling, you'll encounter diverse natural features. The historic Old Railroad Grade itself is a point of interest, with a cement transfer platform from its past still visible near Double Bowknot Junction. You can also explore highlights like the Blithedale Ridge Fire Rd and the Middle Summit / Escalon Fire Road, which offer unique perspectives of the preserve.

Can I connect to other trail systems from these no-traffic road cycling routes?

Yes, Blithedale Summit Open Space Preserve connects to a larger network of protected lands, including Baltimore Canyon Open Space, Camino Alto Open Space Preserve, and Mount Tamalpais State Park. This allows for extended explorations and longer rides, including sections of the 550-mile Bay Area Ridge Trail, offering even more traffic-free cycling opportunities.

Are e-bikes permitted on the no-traffic fire roads in Blithedale Summit Open Space Preserve?

Yes, e-bikes are permitted on the fire roads within Blithedale Summit Open Space Preserve, which make up many of the no-traffic routes. This increases accessibility for a wider range of cyclists to enjoy the preserve's scenic beauty.

Where can I find parking for these no-traffic road cycling routes?

While specific parking areas are not detailed in this guide, trailheads for routes often have nearby parking. For detailed information on parking facilities and access points, it's recommended to check the official Blithedale Summit Open Space Preserve website or local park resources before your visit.

Are there any routes that feature seasonal streams or waterfalls?

During the rainy season, small waterfalls emerge, and streams flow downhill from Blithedale Ridge into Corte Madera Creek. While no specific route is highlighted for waterfalls, cycling through the redwood and Douglas-fir forests, especially along trails like the Old Railroad Grade, will bring you closer to these natural water features when they are active.

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