4.9
(73)
742
riders
22
rides
Mountain biking around Mill Valley offers diverse terrain at the foot of Mount Tamalpais, within Marin County, California. The region features extensive trail networks winding through redwood forests, coastal hills, and open landscapes. Riders can explore varied elevations, from challenging climbs on mountain slopes to paths with views of the Pacific Ocean and San Francisco Bay. The area's geography provides a mix of singletracks and fire roads, catering to different skill levels.
Last updated: April 24, 2026
4.9
(34)
119
riders
35.4km
03:20
840m
840m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.8
(8)
111
riders
24.0km
02:39
750m
750m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4.8
(9)
110
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.9
(14)
82
riders
31.4km
03:05
900m
900m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.3
(3)
68
riders
43.3km
04:17
1,120m
1,120m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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This is a great gravel road that takes you from the summit of Mount Tam to West Point. The road is wide and not very technical, but the views south across the foothills to Muir Woods are fantastic.
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Beautiful, quiet bay. With great surroundings. Not too crowded.
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Great viewpoint along Stagecoach Fire Road. There are picnic tables, so this is a great place for a break to enjoy the wonderful views of Mount Tamalpais.
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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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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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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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Hogback fire road climbs up to this point along the spine of a ridge, mostly steep and direct.
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There are over 20 mountain bike trails around Mill Valley, offering a diverse range of experiences. These include 1 easy route, 16 moderate routes, and 5 difficult routes, catering to various skill levels.
Mill Valley's mountain bike trails offer varied terrain, from challenging climbs on the slopes of Mount Tamalpais to paths with views of the Pacific Ocean and San Francisco Bay. You'll find a mix of singletracks and fire roads winding through redwood forests, coastal hills, and open landscapes. Difficulty ranges from easy, family-friendly paths to difficult routes with significant elevation gains.
Yes, while many trails offer moderate to difficult challenges, there are options suitable for beginners and families. The region features paths that are less technical, allowing for a more relaxed ride through scenic areas. For instance, the Tennessee Valley Trail, though not exclusively for mountain biking, offers a wide, paved section leading to Tennessee Cove, which can be a good option for a gentler ride.
Mountain biking around Mill Valley offers access to stunning natural features. You can ride through towering redwood forests, experience panoramic views from Mount Tamalpais, and enjoy coastal vistas. Notable attractions include the majestic redwood groves near Remillard Park, the scenic Phoenix Lake, and the beautiful Cascade Falls, especially impressive after rainfall. Many routes offer glimpses of the San Francisco Bay and the Pacific Ocean.
Yes, many of the mountain bike trails around Mill Valley are designed as loops, allowing you to start and end at the same point. Examples include the Mount Tamalpais & Coastal Trail loop and the Mt. Tam Summit loop, both offering extensive rides through diverse landscapes.
The mountain bike trails in Mill Valley are highly rated by the komoot community, with an average score of 4.9 stars from over 130 reviews. Riders frequently praise the diverse terrain, the stunning redwood forests, and the panoramic views of the Pacific Ocean and San Francisco Bay. The well-maintained trails and the historical significance of the area as the birthplace of mountain biking also contribute to its popularity.
Regulations regarding dogs on trails can vary by specific park or land management area within Mill Valley. While some trails in Marin County allow dogs on leash, others, particularly within State Parks or sensitive natural areas, may have restrictions. It's always best to check the specific rules for the trail you plan to ride before heading out with your dog.
Mill Valley offers good mountain biking conditions for much of the year. Spring and fall generally provide the most pleasant weather, with mild temperatures and lush scenery. Winter can also be a good time, especially after rainfall when Cascade Falls is at its most impressive, though some trails might be muddy. Summers are typically warm and dry, but coastal fog can provide cooler conditions.
While popular routes like those on Mount Tamalpais can see significant use, exploring some of the less-trafficked fire roads or trails slightly off the main circuits can offer a more secluded experience. The extensive network means there are always opportunities to find quieter sections, especially during weekdays or earlier in the morning. The Hoo-Koo-E-Koo Fire Road Trail β Railroad Grade Fire Road loop offers a substantial ride that can feel less crowded than some of the more central singletracks.
Parking is available at various trailheads and access points around Mill Valley, particularly near Mount Tamalpais State Park and other regional open spaces. Specific parking areas can be found near popular starting points for trails like the Old Railroad Grade. It's advisable to arrive early, especially on weekends, as parking lots can fill up quickly. Some areas may require a parking fee or permit.
Yes, there are facilities available along some of the routes, particularly within Mount Tamalpais State Park. For example, the West Point Inn offers a historic stop with refreshments and stunning views. The Pantoll Ranger Station & Campground also provides facilities. Additionally, the Lake Lagunitas Picnic Area and Trailhead is a good spot for a break.
One of the longer mountain bike trails in the area is the Old Mine Trail (lower) π² β Miwok Trail loop from Mill Valley, which spans approximately 27.2 miles (43.7 km). This difficult route takes about 4 hours and 13 minutes to complete and leads through diverse landscapes.


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