4.4
(11)
359
riders
6
rides
Gravel biking around Mill Valley offers diverse terrain at the base of Mount Tamalpais, featuring an extensive network of trails. The region is characterized by towering redwood forests, rolling hills, and deep canyons, providing varied landscapes for riders. Routes often traverse oak woodlands and open grasslands, frequently offering views of the Pacific Ocean and the Golden Gate Bridge. This topography ensures a mix of shaded forest paths and open, scenic sections.
Last updated: April 25, 2026
4.8
(6)
79
riders
47.4km
04:24
1,270m
1,270m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
45.7km
04:00
1,180m
1,180m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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38
riders
63.5km
04:25
1,160m
1,160m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
51.6km
04:13
1,200m
1,200m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
20.2km
01:32
460m
460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Mill Valley
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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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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Mount Tamalpais State Park is a majestic area in the heart of Marin County, with sweeping hillsides covered in fantastic redwood forest, open grasslands, sturdy chaparral, and wooded oaklands. The views from Mount Tampais boast breathtaking vistas of the Pacific Ocean, San Francisco Bay and City, the Marin County Hills, Mount Diablo, and the East Bay. You can even see the Farallon Islands, 25 miles out to sea. If you're lucky, you can catch an occasional glimpse of the snow-capped Sierra Nevada Mountain Range, nearly 150 miles away. The Park is a haven for cyclists, hikers, wildlife watchers, or those who wish to find a beautiful spot for an afternoon picnic.
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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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Bicycle friendly cafe and bookstore
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Sausalito is a nice place to see (the skyline of) San Francisco from. But there is also a lot of tourism here and if you think you can eat cheaper here, you are unfortunately on the wrong track :-).
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There are 6 dedicated no-traffic gravel bike trails around Mill Valley featured in this guide. These routes are known for their challenging terrain and stunning natural beauty, offering a true escape into the region's diverse landscapes.
Mill Valley's no-traffic gravel trails wind through a rich variety of landscapes. You'll experience everything from cool, shaded redwood forests and deep canyons to rolling hills, open grasslands, and often spectacular views of the Pacific Ocean and the Golden Gate Bridge. The region's topography ensures a dynamic and scenic ride.
Yes, the Mill Valley area is home to several beautiful waterfalls, especially after rainfall. While not directly on every gravel route, you can find trails like Cataract Trail π², Laurel Dell Falls, Dawn Falls Trail, and Carson Falls nearby, offering scenic detours for a refreshing view.
The komoot community highly rates the no-traffic gravel biking experience in Mill Valley, with an average score of 4.4 stars. Riders frequently praise the challenging climbs, the immersive feeling of being surrounded by nature, and the incredible panoramic views, especially from higher elevations like Mount Tamalpais. The absence of vehicle traffic is consistently highlighted as a major benefit.
Yes, many of the no-traffic gravel routes in Mill Valley are designed as loops, allowing you to start and end in the same location. For example, the Old Mine Trail (lower) π² loop from Mill Valley offers a substantial circular ride through varied terrain.
Beyond the stunning natural beauty of Mount Tamalpais, you might encounter iconic landmarks. Some routes offer glimpses of the Golden Gate Bridge, especially from the Marin Headlands. The proximity to Muir Woods National Monument Entrance also means you'll be riding through areas rich with old-growth redwoods.
The no-traffic gravel trails listed in this guide are generally rated as difficult due to significant elevation gains and technical sections. While the lack of traffic is ideal, these routes are best suited for experienced gravel bikers looking for a challenging ride. Beginners or families might find them too demanding.
Gravel biking in Mill Valley is enjoyable year-round, but the best season often depends on your preference. Spring and fall offer mild temperatures and lush landscapes. Winter can bring rain, making trails muddy but also enhancing waterfalls. Summer is typically dry and warm, but shaded redwood sections provide relief from the heat.
While Mill Valley itself has some public transport options, direct access to the trailheads for these specific gravel routes can be limited. Many riders opt to drive to a suitable parking area near the start of a route. For more general information on the area, you might find resources at marincountyvisitor.com.
Yes, the Phoenix Lake area is a popular spot for local gravel bikers. The Phoenix Lake β Fish Gulch trail junction loop from Mill Valley offers a challenging ride through varied natural surroundings, providing extensive climbing and scenic views around the lake.
For those seeking significant elevation gain and scenic vistas around Alpine Dam, the Alpine Dam β Fish Gulch trail junction loop from Alta is an excellent choice. This route is known for its challenging climbs and rewarding views of the surrounding natural beauty.
Absolutely. The Fern Creek and spring β Pantoll Road loop from Mill Valley provides a demanding gravel biking experience. This route takes you through beautiful forested areas, including Fern Creek, and incorporates sections of Pantoll Road, offering a substantial workout amidst stunning scenery.


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