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Sonoma County

Sonoma Coast State Park

The best MTB trails in Sonoma Coast State Park

5.0

(9)

78

riders

17

rides

Mountain biking in Sonoma Coast State Park offers diverse terrain across a dramatic 17-mile stretch of coastline. The region is characterized by rugged, craggy bluffs, expansive sandy beaches, and secluded coves, providing varied backdrops for rides. Trails are primarily located within the Upper Willow Creek unit, featuring cross-country and singletrack experiences. This area presents a range of routes from moderate to those requiring good fitness and advanced skills, often with significant elevation gain.

Best mountain bike trails in Sonoma Coast State Park

  • The most popular mountain bike trail is Willow Creek Fire Road, Upper Old Barn & Lower Old Barn Trail gravel loop, a 17.1 miles (27.5 km) route that takes 2 hours 22 minutes to complete. This moderate route features significant elevation gain through varied terrain.
  • Another top favourite among local mountain bikers is Willow Creek Fire Road loop from Campsite 4, a moderate 13.9 miles (22.4 km) path. This route offers diverse terrain and coastal views within the park.
  • Local mountain bikers also love the Lower Old Barn Trail loop from Occidental, a 11.9 miles (19.2 km) trail leading through the Upper Willow Creek unit, often completed in about 2 hours 3 minutes.
  • Mountain biking in Sonoma Coast State Park is defined by rugged headlands, rocky bluffs, and diverse trails within the Willow Creek unit. The network offers options for different ability levels, from moderate rides to those requiring advanced skills.
  • The routes in Sonoma Coast State Park are highly rated by the komoot community with an average score of 4.5 stars from over 5 reviews. More than 50 mountain bikers have used komoot to explore Sonoma Coast State Park's varied terrain.

Last updated: July 7, 2026

5.0

(2)

7

riders

#1.

Willow Creek, Upper and Lower Old Barn Loop

27.5km

02:22

490m

490m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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5.0

(2)

9

riders

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard
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Popular around Sonoma Coast State Park

California Coastal Trail — Following the coastline from Mexico to Oregon

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California Coastal Trail — Following the coastline from Mexico to Oregon

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Andrus

Tips from the Community

Traveler
June 29, 2025, Duncans Mills

The recreated western town now houses restaurants, a General Store, and various smaller boutiques.

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Great views into the Russian River estuary. Just before the Bridge on the south side is a store for resupply and food. The small Willow Creek Road before the bridge to the north follows the river's south side with great views and access to trails up the mountain.

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This trail is an excellent route through open grasslands and dense forest with lovely views of the rolling green hills. The path is part of the Upper Barn Trail to complete a loop, with several connecting trails for many options to explore this beautiful area.

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Willow Creek Fire Road is perhaps one of the greatest gravel roads for biking in the area. Whether you are looking to rip on a gravel bike or just cruise on your hard tail, this road fits the bill for just about any rider. There are numerous trail and road intersections where you can turn and loop back, or you can just do an out and back from either end. Note that while this is a smooth gravel road, it's completely closed to car traffic, so you'll be the fastest thing on the trail.

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This trail is lovely, with redwoods and ferns blanketing the forest floor and ridgelines offering great views of the Pacific Ocean. The top opens to a beautiful meadow, where you can take the time to savor the gorgeous valley below.

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Western end of River road, closely parallel to the wide estuary of the Russian River, with sweeping views around every turn

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The Coast Highway winds in switchbacks down from the cliffs, with spectacular views.

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Frequently Asked Questions

How many mountain bike trails are available in Sonoma Coast State Park?

There are over 10 mountain bike trails in Sonoma Coast State Park. These routes offer a range of experiences, with 10 classified as moderate and 4 as difficult, catering to various skill levels.

What kind of terrain can I expect on mountain bike trails in Sonoma Coast State Park?

The mountain bike trails in Sonoma Coast State Park primarily traverse the Upper Willow Creek unit, offering diverse terrain. You'll encounter rugged, craggy bluffs, cross-country sections, and singletrack experiences. Many routes feature significant elevation gain, providing a challenging ride amidst stunning coastal backdrops.

Are there any challenging mountain bike trails for experienced riders?

Yes, for experienced riders seeking a challenge, Sonoma Coast State Park offers several difficult trails. The Duncans Mills loop from Duncans Mills is a moderate route with significant elevation gain, while the park also features trails like Islands in the Sky Loop, known for having the most elevation gain, and SDB, which is particularly steep. These routes require good fitness and advanced skills.

What are some scenic viewpoints or natural features I can see while mountain biking?

While mountain biking in Sonoma Coast State Park, you can encounter several breathtaking natural features and viewpoints. Notable spots include Bodega Head, offering panoramic views of the Pacific, and the Coleman Overlook. The park's coastline is also characterized by rugged headlands, natural arches, and tide pools, especially at beaches like Shell Beach.

Are permits required for mountain biking in Sonoma Coast State Park?

Previously, permits were required for trails within the Upper Willow Creek unit. However, these trails are now openly accessible, and permits are no longer needed for mountain biking in Sonoma Coast State Park.

What is the best time of year to go mountain biking in Sonoma Coast State Park?

Sonoma Coast State Park offers mountain biking opportunities year-round. However, for the most pleasant experience, consider visiting during the spring or fall when temperatures are mild and the coastal fog is less prevalent. These seasons often provide clearer views and comfortable riding conditions.

Can I bring my dog on the mountain bike trails?

While Sonoma Coast State Park is generally dog-friendly in certain areas, specific regulations apply to trails. It's best to check the official park guidelines for the most current information on where dogs are permitted on mountain bike trails. Always keep dogs on a leash and clean up after them.

Are there any loop mountain biking trails in the park?

Yes, many of the mountain biking routes in Sonoma Coast State Park are designed as loops. For example, the Willow Creek Fire Road loop from Jenner is a moderate 16.8 km route, and the Duncans Mills loop from Duncans Mills also offers a circular experience.

What do other mountain bikers enjoy most about the trails in Sonoma Coast State Park?

The mountain bike trails in Sonoma Coast State Park are highly rated by the komoot community, with an average score of 4.5 stars. Riders often praise the diverse terrain, the stunning coastal views, and the challenging elevation gains that make for a rewarding experience. The variety of cross-country and singletrack options also receives positive feedback.

Is public transportation available to access the mountain biking areas?

Public transportation options to directly access the mountain biking areas within Sonoma Coast State Park are limited. While Sonoma County Transit serves some areas of the wider region, direct routes to trailheads, particularly within the Upper Willow Creek unit, may not be readily available. It is generally recommended to travel by car to reach the starting points of the trails.

Are there any family-friendly or easy mountain bike trails suitable for beginners?

The mountain bike trails in Sonoma Coast State Park are generally rated as moderate to difficult, with significant elevation gains. There are no trails specifically classified as 'easy' for beginners or young children in the provided data. Riders should have a good level of fitness and some experience to comfortably navigate these routes.

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