4.5
(430)
7,009
riders
53
rides
No traffic touring cycling routes in Blithedale Summit Open Space Preserve traverse 639 acres along Mount Tamalpais's northern ridge in Marin County. The preserve features a diverse landscape, ranging from deep redwood and Douglas-fir forests to dense chaparral and open grasslands. Its well-maintained fire roads provide accessible paths for touring cyclists, offering a mix of gentle climbs and more challenging ascents. Higher elevations within the preserve offer expansive views of the Marin Headlands and San Francisco Bay.
Last updated: July 10, 2026
5.0
(2)
61
riders
33.3km
02:37
430m
430m
Cycle a moderate 20.7-mile loop around Phoenix and Bon Tempe Lakes, enjoying diverse terrain, scenic views, and wildlife spotting.
5.0
(2)
23
riders
18.4km
01:19
150m
150m
Cycle 11.4 miles (18.4 km) to Tennessee Beach via Sausalito-Mill Valley Trail, a moderate route with ocean views in Marin Headlands.

Sign up for free
5.0
(1)
85
riders
31.7km
03:02
880m
880m
The West Point Inn โ Pantoll Road loop from Mill Valley offers a rigorous touring cycling experience, perfect for those who thrive on challenging ascents and long rides. This difficultโฆ
51
riders
30.9km
03:16
950m
950m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
16
riders
If you're seeking a serious workout on two wheels, the Blithedale Ridge Fire Rd โ Vic Haun Trail loop from Mill Valley delivers a challenging touring cycling experience. This difficultโฆ
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Popular around Blithedale Summit Open Space Preserve
Climbing up Mount Tamalpais, you'll find many great spots for admiring the scenery, but this one particularly struck me because, almost immersed in nature, you can see the city skyline in the distance. I found it so moving that I stopped my bike and stood there contemplating the landscape for a few minutes. The climb is a bit steep, but it's definitely worth it!
0
0
At the end of the gradual Tennessee Valley Road, the last mile or so unpaved but smooth gravel, awaits the natural sandy wide beach cove. The steep coastal trails climbing on either side are hiking only.
0
0
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.
0
0
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.
1
0
Komoot offers nearly 60 dedicated touring cycling routes in Blithedale Summit Open Space Preserve that prioritize low-traffic or traffic-free sections. These routes range in difficulty from easy to difficult, ensuring options for various skill levels.
For an easy and steady ascent through redwood forests, the Old Railroad Grade is highly recommended. While not a specific komoot route listed here, it's a key feature of the preserve known for its gentle slope and accessibility. Many routes incorporate sections of this historic path. For a moderate option, consider the Tennessee Beach via Sausalito-Mill Valley Trail, which offers a pleasant ride with minimal elevation gain.
Yes, for those seeking a more challenging ride, routes like the Mount Tamalpais East Peak โ Pantoll Road loop from Mill Valley offer substantial elevation gain, climbing nearly 900 meters. The Blithedale Ridge Fire Road also provides a good workout with its 'roller coaster' uphills and downhills, often incorporated into longer, more difficult tours.
The routes primarily utilize well-maintained fire roads, which are ideal for touring cyclists. You'll encounter diverse terrain, from deep redwood and Douglas-fir forests to dense chaparral and open grasslands. Some trails, like the Maytag Trail, offer cool shade, while others provide open, panoramic views.
Blithedale Summit Open Space Preserve is rich in natural beauty. You can expect panoramic views of the Marin Headlands, San Francisco Bay, and surrounding hills from higher elevations. During the rainy season, you might spot mini-waterfalls. The preserve also features diverse habitats with California bay, coast live oak, and madrone trees. Specific highlights include the Dawn Falls Trail and the scenic Blithedale Ridge Fire Rd.
Yes, several loop routes are available. A popular moderate option is the Phoenix Lake to Bon Tempe Lake loop, which covers over 33 kilometers. For a more challenging loop, consider the Mount Tamalpais East Peak โ Pantoll Road loop from Mill Valley.
The area is highly rated by the komoot community, with an average score of 4.7 stars from over 260 ratings. Reviewers often praise the stunning panoramic views, the well-maintained fire roads suitable for touring, and the peaceful, traffic-free environment that allows for an immersive outdoor experience.
The preserve is enjoyable year-round, but spring offers the added beauty of blooming lilies and the melodic songs of wrens. The cooler months and early mornings are ideal for avoiding heat, especially on more exposed sections. During the rainy season, seasonal streams and mini-waterfalls add to the charm, though some trails might be muddier.
Yes, Blithedale Summit is the largest in a chain of preserves that follow Mount Tamalpais's north ridge. It seamlessly connects with other open spaces like Baltimore Canyon, Camino Alto, and King Mountain, providing access to a larger trail system, including a section of the 550-mile Bay Area Ridge Trail. This connectivity allows for extended touring adventures beyond the immediate preserve boundaries.
Many cyclists start their journeys from downtown Mill Valley, which offers various parking options. Specific trailheads within or near the preserve may also have designated parking areas. It's advisable to check local regulations for parking availability and restrictions before your visit.
Yes, the Phoenix Lake to Bon Tempe Lake loop is an excellent option that takes you past two beautiful lakes. Additionally, during the rainy season, many trails follow alongside seasonal streams that feed into Corte Madera Creek, and you might encounter mini-waterfalls.
While direct public transport to every trailhead might be limited, Mill Valley, a common starting point for many routes, is accessible by public transport. From there, you can cycle to the preserve's entry points. Checking local bus schedules for Marin County would provide the most up-to-date information on public transport options to the vicinity of the preserve.


Browse the best Cycling routes in other regions.