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Gravel rides
United States
California
Marin County

Mill Valley

The best traffic-free bike rides around Mill Valley

4.6

(22)

517

riders

7

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.

Best no traffic gravel bike trails around Mill Valley

  • The most popular no traffic gravel bike trail is Old Mine Trail (lower) 🌲 loop from Mill Valley, a 29.5 miles (47.4 km) trail that takes 4 hours 23 minutes to complete. This route offers a challenging ride through varied forest landscapes and elevation changes.
  • Another top favourite among local gravel bikers is Fern Creek and spring – Pantoll Road loop from Mill Valley, a difficult 23.4 miles (37.7 km) path. It winds through lush forests and offers scenic views from higher elevations near Pantoll Road.
  • Local gravel bikers also love the Phoenix Lake – Fish Gulch trail junction loop from Mill Valley, a 28.4 miles (45.7 km) trail leading through varied natural surroundings around Phoenix Lake, often completed in about 4 hours.
  • Gravel biking around Mill Valley is defined by redwood forests, rolling hills, and coastal views, with routes often ascending Mount Tamalpais. The network offers options primarily for difficult ability levels, with significant elevation gains.
  • The routes in Mill Valley are highly rated by the komoot community with an average score of 4.4 stars from over 10 reviews. More than 350 gravel bikers have used komoot to explore Mill Valley's varied terrain.

Last updated: July 8, 2026

4.8

(6)

73

riders

#1.

Old Mine Trail (lower) 🌲 loop from Mill Valley

47.4km

04:21

1,270m

1,270m

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Popular around Mill Valley

Traffic-free bike rides around Mill Valley

Tips from the Community

Eric Cross
August 10, 2025, Phoenix Lake

log cabin at phoenix lake

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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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There is a great view of the northern point of Alpine lake where a small channel feeds over to Bon Tempe Lake. This is a great place to drop a line, or just enjoy the aquatic views.

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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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On Shaver Grade Road, you get to ride along the incredibly blue waters of Phoenix Lake.

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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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Frequently Asked Questions

How many no-traffic gravel bike trails are available in Mill Valley?

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.

What kind of landscapes can I expect on these gravel bike trails?

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.

Are there any waterfalls along the no-traffic gravel bike trails near Mill Valley?

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 🌲, Laurel Dell Falls, Dawn Falls Trail, and Carson Falls nearby, offering scenic detours for a refreshing view.

What do other gravel bikers enjoy most about the no-traffic trails in Mill Valley?

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.

Are there any loop options for no-traffic gravel biking in Mill Valley?

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) 🌲 loop from Mill Valley offers a substantial circular ride through varied terrain.

What are some notable natural features or attractions I might see while gravel biking?

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.

Are the no-traffic gravel trails in Mill Valley suitable for beginners or families?

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.

What is the best season for gravel biking in Mill Valley?

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.

Can I access these no-traffic gravel trails using public transport?

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.

Are there any routes that explore the Phoenix Lake area?

Yes, the Phoenix Lake area is a popular spot for local gravel bikers. The Phoenix Lake – 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.

Which route offers extensive climbing and views around Alpine Dam?

For those seeking significant elevation gain and scenic vistas around Alpine Dam, the Alpine Dam – 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.

Is there a challenging loop that includes Fern Creek and Pantoll Road?

Absolutely. The Fern Creek and spring – 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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