4.5
(245)
2,154
riders
117
rides
Touring cycling in Loma Alta Open Space Preserve offers routes through rolling hills and fire roads, characteristic of Marin County's landscape. The preserve features a mix of open grasslands and wooded areas, providing varied scenery for cyclists. Elevations are generally moderate, with some climbs leading to expansive views of the surrounding region. The terrain includes both paved and unpaved sections, catering to different touring cycling preferences.
Last updated: July 8, 2026
10
riders
14.0km
01:31
460m
460m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14.5km
01:28
450m
450m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.8
(5)
64
riders
48.9km
03:01
470m
470m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
50
riders
21.8km
02:01
440m
440m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
56
riders
47.4km
04:55
1,410m
1,410m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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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Mount Tam East Peak offers some of the most majestic views north of the bay. From this vantage point, you can see all of Marin, along with Point Reyes to the north and Oakland and San Francisco to the south. The stunning panoramic vistas make the journey well worth the effort. There are restrooms and picnic tables, ideal for a snack or lunch while you capture some incredible photos.
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Created by the construction of Seeger Dam on the Nicasio Creek in 1961, this shallow reservoir covers 845 acres and is part of the Marin Municipal Water District
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West of Lake Lagunitas, Bon Tempe Lake is a reservoir managed by Marin Municipal Water District. It features striking scenery, with lush trees, clear water, and a peaceful atmosphere.
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At this point on Sky Oaks Road, there is a junction with Shaver Grade Road, which connects with a dense network of trails and dirt roads near Bald Hill in the Mount Tamalpais State Park. From here, you can continue on the paved Sky Oaks Road or go arond the gate on to the gravel Shaver Grade Road.
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There are over 110 touring cycling routes mapped in Loma Alta Open Space Preserve, offering a wide variety of options for different skill levels and preferences.
Yes, Loma Alta Open Space Preserve features 21 easy touring cycling routes. These are generally shorter with less elevation gain, making them ideal for beginners or families looking for a relaxed ride. While specific easy routes aren't highlighted in the intro, komoot offers many options to explore.
The terrain in Loma Alta Open Space Preserve is characterized by rolling hills and fire roads, typical of Marin County. You'll encounter a mix of open grasslands and wooded areas, with both paved and unpaved sections. Elevations are generally moderate, but some climbs lead to expansive views.
Many routes in the preserve are designed as loops. For example, the White Hill and Blue Ridge Fire Roads Loop is a moderate 9-mile route that navigates unpaved fire roads with scenic overlooks. Another option is the more challenging Cross-Marin Trailhead – Point Reyes Station loop from Woodacre, which is 30.3 miles long.
Along the routes, you can explore several interesting spots. Consider visiting the White Hill — Old Railroad Grade upper trailhead, or the scenic Fairfax Falls. The Old Railroad Grade Trail itself is a popular feature, and the White Hill Trailhead serves as a common starting point for many adventures.
The area is highly rated by the komoot community, with an average score of 4.5 stars from over 190 reviews. Cyclists often praise the varied terrain, from rolling hills to fire roads, and the scenic lake views found on routes like the Phoenix Lake – Alpine Lake - Bon Tempe Dam loop from Fairfax.
Yes, for experienced riders, there are 43 difficult routes. A challenging option is the West Point Inn – Alpine Lake - Bon Tempe Dam loop from Fairfax, which covers 46.9 miles with significant elevation gain, offering a demanding ride through diverse landscapes.
Marin County generally offers pleasant cycling conditions year-round. Spring and fall provide mild temperatures and lush scenery, while summer can be warm but often features coastal breezes. Winter can bring rain, but many days are clear and cool, making it suitable for cycling.
Specific parking areas and trailheads are typically indicated on individual route pages on komoot. Common access points are often found near the preserve's boundaries or at designated trail entrances like the White Hill Trailhead. It's advisable to check the route details for precise parking information before your ride.
While Loma Alta Open Space Preserve itself is a natural area, the nearby towns of Fairfax and Woodacre offer various cafes, restaurants, and shops where you can refuel before or after your ride. Routes like the Sausalito — Mill Valley Path – Bothin Marsh Preserve loop from Fairfax start or pass near these amenities.
Marin County offers numerous other excellent touring cycling opportunities. Nearby areas like Mount Tamalpais State Park, Samuel P. Taylor State Park, and the extensive network of fire roads and paved paths throughout Marin provide diverse options for cyclists looking to explore beyond Loma Alta.


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