The best MTB trails around Fairfax
4.6
(51)
719
riders
27
rides
Mountain biking around Fairfax, California, offers diverse landscapes at the foot of Mount Tamalpais. The region features extensive trail systems, including those within the Marin Municipal Water District Watershed, which provide varied terrain. Riders can explore challenging singletrack, fire roads, and paths winding through redwood groves. The area is characterized by significant elevation changes and natural features that cater to a range of mountain biking experiences.
Best mountain bike trails around Fairfax
- The most popular mountain bike trail is Fairfax Tamarancho Trails loop, a 11.1 miles (17.8 km) trail that takes 1 hour 42 minutes to complete. This difficult route offers challenging and technical singletrack within the renowned Camp Tamarancho.
- Another top favourite among local mountain bikers is Tamarancho to Cascade Fire Road loop, a moderate 14.5 miles (23.4 km) path. This route winds through scenic redwood groves and offers varied terrain.
- Local mountain bikers also love the Camp Tamarancho Trailhead – Goldman Trail loop from Fairfax, a 14.2 miles (22.8 km) trail leading through the diverse terrain of Camp Tamarancho, often completed in about 2 hours 9 minutes.
- Mountain biking around Fairfax is defined by challenging singletrack, redwood groves, and the varied landscapes of Mount Tamalpais. The network offers options for easy, moderate, and difficult routes, catering to different ability levels.
- The routes in Fairfax are highly rated by the komoot community with an average score of 4.5 stars from over 40 reviews. More than 700 mountain bikers have used komoot to explore Fairfax's varied terrain.
Last updated: April 24, 2026
5.0
(27)
303
riders
17.8km
01:42
410m
410m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
22
riders
23.4km
02:30
720m
720m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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4.0
(3)
43
riders
34.0km
03:33
950m
950m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
3.0
(1)
41
riders
19.2km
01:53
550m
550m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
5.0
(2)
35
riders
19.7km
01:44
370m
370m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Tips from the Community
An absolute must-see for cycling enthusiasts! This museum in Fairfax tells the story of nearly 200 years of cycling history, from 19th-century velocipedes to modern racing bikes. It's also home to the Mountain Bike Hall of Fame, featuring unique specimens and stories about the pioneers of mountain biking. The collection is impressive and authentic—no replicas, but real bicycles that showcase the evolution of technology and design. An inspiring place where you can truly feel the passion for cycling.
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Where Eclipse and Solstice Trails intersect.
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Covered shelter hut, picnic tables, restroom, and parking.
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This town, nestled in the forested hills among unspoiled open space in Marin County, is a nice respite from the large nearby metropolis. It is a quirky, hip place with a small-town vibe filled with restaurants, music venues, and independent shops. Fairfax is home to many musicians who live here, and on any given night, you can find live music featuring local and national touring acts jamming in a relaxed, casual atmosphere. It has a very cycle-friendly culture, and be sure to take the time to visit the Museum of Bicycling while you are here!
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This town, nestled in the forested hills among unspoiled open space in Marin County, is a nice respite from the large nearby metropolis. It is a quirky, hip place with a small-town vibe filled with restaurants, music venues, and independent shops. Fairfax is home to many musicians who live here, and on any given night, you can find live music featuring local and national touring acts jamming in a relaxed, casual atmosphere. It has a very cycle-friendly culture, and be sure to take the time to visit the Museum of Bicycling while you are here!
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Non-profit exhibit of some cool historic bikes, including some of the mountain bikes invented here
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The Lagunitas Dam, completed 151 years ago, was built in less than four months and was 480 feet long with a crest of 20 feet. The purpose was to supply development in the San Rafael area. Its current capacity is 350 acre-feet or 114 million gallons. Lake Lagunitas is one of seven Marin Municipal County Reservoirs, and the combined rainfall collected from these reservoirs makes up around 75 % of the district's water supply.
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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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Frequently Asked Questions
How many mountain bike trails are available around Fairfax?
Fairfax offers a wide variety of mountain biking experiences, with over 25 trails listed on komoot. These routes cater to different skill levels, including easy, moderate, and difficult options, ensuring there's something for every rider.
Do I need a permit to ride mountain bike trails in Fairfax?
Yes, Camp Tamarancho, a significant mountain biking destination in Fairfax, requires a one-day permit to ride its trails. It's advisable to check local regulations for other specific areas within the Marin Municipal Water District (MMWD) watershed, as rules can vary.
What kind of terrain can I expect on mountain bike trails in Fairfax?
The terrain around Fairfax is incredibly diverse, ranging from challenging singletrack and technical features to scenic fire roads. You'll encounter redwood groves, significant elevation changes, and rocky sections, especially on trails like the Fairfax Tamarancho Trails loop and the Camp Tamarancho Trailhead – Goldman Trail loop.
Are there any family-friendly mountain bike trails in Fairfax?
While many trails in Fairfax offer challenging terrain, there are options suitable for families. Look for routes designated as 'easy' or 'moderate' on komoot. The Marin Municipal Water District (MMWD) Watershed also features extensive trail systems that include less technical paths, though specific family-friendly mountain bike routes should be researched for current conditions and suitability.
Can I bring my dog on the mountain bike trails in Fairfax?
Dog policies vary across the extensive trail systems in Marin County. While some areas, particularly within the Marin Municipal Water District (MMWD) Watershed, may allow dogs on leash, it's crucial to check specific trail regulations before heading out. Camp Tamarancho, for instance, has its own rules regarding pets.
What are some notable natural features or landmarks I might see while mountain biking?
Fairfax's trails offer stunning natural beauty. You can ride through beautiful redwood groves, enjoy immense views of Mount Tamalpais, and even catch glimpses of the Pacific Ocean. Trails often pass by parts of the Marin Municipal Water District Watershed, which includes picturesque areas like Bon Tempe Lake. Highlights include Cathedral Grove of Giant Redwoods and various Mount Tamalpais Summits.
What is the best time of year to go mountain biking in Fairfax?
Fairfax offers good mountain biking conditions for much of the year. Spring and fall generally provide the most pleasant weather, with cooler temperatures and lush landscapes. While winter riding is possible, some trails may be muddy or closed due to rain. Summer can be warm, so early morning rides are often preferred.
Are there any loop trails for mountain biking in Fairfax?
Yes, many of the mountain bike routes around Fairfax are designed as loops, offering varied scenery without retracing your steps. Popular loop options include the Tamarancho to Cascade Fire Road loop and the Cascade Fire Road – Gestalt Haus loop.
Where can I find parking or public transport options for mountain biking in Fairfax?
Fairfax serves as a convenient 'jumping-off point' for many trails. Parking is often available near trailheads, particularly around Camp Tamarancho. For specific public transport options to trail access points, it's best to consult local Marin County transit schedules, as direct access to all trailheads might be limited.
What do other mountain bikers enjoy most about riding in Fairfax?
The mountain biking community highly rates the trails around Fairfax, with an average score of 4.5 stars from over 40 reviews on komoot. Riders frequently praise the challenging singletrack, the stunning redwood groves, and the diverse landscapes of Mount Tamalpais, which offer a unique and rewarding experience.
Are there any advanced or technical mountain bike trails in Fairfax?
Fairfax is renowned for its challenging and technical trails, attracting experienced riders. Camp Tamarancho, in particular, offers some of the best singletrack in the Bay Area, including the thrilling Tamarancho Flow Trail and the rocky Wagon Wheel Trail. The Hoo-Koo-E-Koo Fire Road Trail – Bon Tempe Dam loop is another difficult option for those seeking a challenge.
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