4.6
(378)
3,897
riders
165
rides
Mountain biking in Marin County offers diverse landscapes, from coastal views to dense redwood groves and oak woodlands. The region is characterized by significant elevation changes, including Mount Tamalpais, which provides panoramic views of the San Francisco Bay and Pacific Ocean. Trails often wind through varied terrain, including salt marshes, rolling hills, and rugged coastal areas. This combination of natural features makes Marin County a premier destination for mountain biking.
Last updated: April 25, 2026
5.0
(27)
303
riders
17.8km
01:42
410m
410m
This difficult 11.1-mile mountain biking loop in Fairfax offers varied terrain, 1333 feet of elevation gain, and technical features.
4.6
(18)
206
riders
14.6km
01:27
280m
260m
This easy 9.1-mile mountain biking loop in China Camp State Park offers bay views and is perfect for building beginner skills.

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4.9
(34)
119
riders
35.4km
03:20
840m
840m
Experience a moderate 22.0-mile mountain biking loop on Mount Tamalpais, featuring diverse terrain and panoramic ocean views.
4.8
(8)
111
riders
24.0km
02:39
750m
750m
This moderate 14.9-mile mountain biking loop on Mount Tamalpais offers diverse terrain and panoramic views of the San Francisco Bay.
4.9
(7)
46
riders
16.8km
01:39
370m
370m
Mountain bike the moderate Marin Three Lakes loop in the Mount Tamalpais Watershed, covering 10.4 miles with 1214 feet of gain.
5.0
(4)
51
riders
17.6km
01:59
570m
570m
This moderate 10.9-mile mountain biking loop offers diverse terrain, panoramic Pacific Ocean views, and varied ecosystems.
5.0
(1)
40
riders
32.4km
03:26
970m
970m
Mountain biking the challenging Tennessee Valley/Muir Beach loop offers spectacular coastal views and diverse terrain in the Marin Headlands
35
riders
11.5km
01:20
400m
400m
This moderate 7.2-mile mountain biking loop in the Marin Headlands offers diverse terrain, scenic vistas, and views of the Golden Gate Bridg
22
riders
23.4km
02:30
720m
720m
This 14.5-mile moderate mountain biking loop in Camp Tamarancho offers diverse terrain, redwood groves, and Pacific Ocean views.
4.3
(3)
16
riders
25.2km
02:37
720m
720m
Challenge yourself on the 15.6-mile Pine Mountain Loop mountain biking trail in Marin County, featuring technical terrain and expansive view
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Popular around Marin County
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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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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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GREAT beginner mountain biking trail! Some fun offshoot trails as well, I recommend bullet hill trail for some fun.
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Great spot post hiking or biking, good beer, good vibes, great food, and vegan options!
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On Shaver Grade Road, you get to ride along the incredibly blue waters of Phoenix Lake.
1
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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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Marin County offers a wide array of mountain biking routes, with over 190 trails documented on komoot. These routes cater to all skill levels, from easy paths to challenging technical descents, ensuring a diverse experience for every rider.
Marin County's trails feature diverse landscapes, including coastal views, dense redwood groves, oak woodlands, and even salt marshes. You'll encounter significant elevation changes, particularly around Mount Tamalpais. There are 30 easy routes, 108 moderate routes, and 52 difficult routes. For a challenging ride with technical singletrack and rock gardens, consider the Fairfax Tamarancho Trails loop. If you prefer a more relaxed experience, the Beginner Loop – China Camp State Park offers wide, smooth sections with bay views.
Yes, Marin County has several options suitable for families. The Beginner Loop – China Camp State Park is an excellent choice, featuring wide, smooth paths through oak woodlands and along the waterfront. Additionally, the Bear Valley Trail in Point Reyes National Seashore offers a wide, flat, and sheltered path, perfect for beginners and families, leading towards Arch Rock and the Pacific Ocean.
Many trails in Marin County offer stunning vistas. The Mt. Tam Summit loop — Mt. Tamalpais Watershed provides spectacular views of the San Francisco Bay and the Pacific Ocean. Trails in the Marin Headlands, such as the Tennessee Valley/Miwok loop, offer breathtaking coastal views, including the Golden Gate Bridge and San Francisco skyline. China Camp State Park also provides killer views of San Francisco Bay.
Absolutely. Marin County is known for its redwood groves. The Mt. Tam Summit loop — Mt. Tamalpais Watershed takes you through majestic redwood groves and oak woodlands. The Fairfax Tamarancho Trails loop also features sections with redwood flow, offering a unique riding experience.
Marin County trails offer access to various points of interest. On Mount Tamalpais, you can find the West Point Inn and the Sunrise Site, both offering great views. The Beginner Loop – China Camp State Park winds past historic Chinese American fishing villages. The Marin Headlands offer views of the Golden Gate Bridge and access to Tennessee Cove. You can also find facilities like the Lake Lagunitas Picnic Area and Trailhead near some routes.
Yes, many of Marin County's mountain bike trails are designed as loops, offering a continuous riding experience without retracing your steps. Examples include the Marin Three Lakes loop, the Marincello/Bobcat/Old Springs loop, and the Pine Mountain loop.
Marin County offers excellent mountain biking conditions year-round, though spring and fall are particularly pleasant with mild temperatures and vibrant scenery. Summers are generally warm and dry, while winters can bring rain, which may make some trails muddy. Always check local weather conditions before heading out.
While many trails are freely accessible, some areas, like the Camp Tamarancho trail system in Fairfax, require a day permit to ride. It's always a good idea to check the specific regulations for the park or land management area you plan to visit before your ride.
The area is highly rated by the komoot community, with an average score of 4.7 stars from over 400 reviews. Riders often praise the diverse terrain, from technical singletrack to smooth paths, and the stunning natural beauty, including redwood groves, coastal views, and panoramic vistas from Mount Tamalpais. The historical significance of Marin County as the birthplace of mountain biking also adds to its appeal.
Yes, Marin County is home to Stafford Lake Bike Park in Novato. This 17-acre community-built park caters to all skill levels with features like a perimeter trail, dual slalom, a progression jump course, and a beginner pump track, making it a great spot for skill development and fun.
Certainly. Marin County, especially around Mount Tamalpais and the Marin Headlands, offers routes with substantial elevation gain. For example, the Tennessee Valley/Muir Beach loop involves nearly 1,000 meters of climbing, providing a demanding and rewarding experience with incredible views.


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