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Marin County

Loma Alta Open Space Preserve

The best traffic-free bike rides in Loma Alta Open Space Preserve

4.5

(246)

2,237

riders

40

rides

Touring cycling in Loma Alta Open Space Preserve offers routes through rolling, grassy hills and diverse ecosystems, including open grasslands, California bay woods, and oak woodlands. The preserve rises to an elevation of 1,592 feet (485 m), providing expansive vistas. Its topography features scenic canyons and creekbeds, with an extensive network of fire roads and trails. These no traffic touring cycling routes traverse varied terrain, from consistent-grade dirt paths to more challenging ascents.

Best no traffic touring cycling routes in…

Last updated: July 10, 2026

10

riders

#1.

680 Trail – 680 Trail loop from Sleepy Hollow

14.0km

01:31

460m

460m

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

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Hard

Embark on a challenging touring cycling adventure with the Fairfax Falls 🌊 – Fairfax loop from Sleepy Hollow, a route designed to test your endurance and reward you with scenic…

Hard
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The White Hill and Blue Ridge Fire Roads Loop offers a dynamic touring cycling experience through Marin County's diverse landscapes. You'll pedal through pockets of California bay and coast live…

Moderate

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

Moderate

This challenging 29.4-mile (47.4 km) touring cycling loop from Fairfax takes you on a scenic adventure through the Mt. Tamalpais Watershed, offering 4615 feet (1407 metres) of elevation gain over…

Hard
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Popular around Loma Alta Open Space Preserve

Traffic-free bike rides in Loma Alta Open Space Preserve

Traffic-free bike rides in Loma Alta Open Space Preserve

Tips from the Community

serge 🚶🐉😊🇧🇪
October 12, 2025, Marin Museum of Bicycling

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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Often busy on weekends, this is a great spot to take moment before/after summiting Mt Tam. There are spigots to fill up water and bathrooms that are open during park hours. The parking lot is very close for those that drive up. There is access to MANY trails for those on foot/bike.

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Alex
May 19, 2025, 680 Trail

The 680 Trail in Marin County has access points at the end of Manuel T. Freitas Parkway via the Mission Pass Bike Path and Fawn Drive. The terrain is fun, rolling trails.

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oliviakellis
September 15, 2024, Bon Tempe Lake

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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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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Sue
October 28, 2023, White Hill

With its peak at 1,404-foot (428 m), White Hill is a grassy horseshoe-shaped hill boasting fantastic views of the Marin County Ridge, Mt. Diablo, Loma Alta, and the north side of Mt. Tamalpais. In the spring, you can enjoy blooming lupines, California poppies, blue larkspur, and, if you're lucky, see a swallowtail butterfly or two.

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Frequently Asked Questions

How many no traffic touring cycling routes are available in Loma Alta Open Space Preserve?

There are over 35 dedicated no traffic touring cycling routes in Loma Alta Open Space Preserve, offering a variety of experiences from easy to difficult. You'll find plenty of options to explore the preserve's diverse landscapes.

What kind of terrain can I expect on the no traffic touring cycling routes?

The routes primarily follow fire roads and trails through rolling, grassy hills, California bay woods, and oak woodlands. You can expect a mix of dirt and gravel paths, with consistent grades on climbs. The preserve's topography includes scenic canyons and creekbeds, providing varied terrain for touring cyclists.

Are there any family-friendly no traffic touring cycling routes in Loma Alta Open Space Preserve?

Yes, Loma Alta Open Space Preserve offers several easier routes suitable for families. While specific routes are not designated as 'family-only,' the preserve has 8 easy-rated touring cycling routes that are generally less challenging and can be enjoyed by riders of varying skill levels. The consistent grades on many fire roads make them accessible.

What are some notable natural features or viewpoints along the no traffic touring cycling routes?

Cyclists reaching the summit of Loma Alta are rewarded with spectacular panoramic views of Mount Tamalpais, San Francisco Bay, the Richmond/San Rafael Bridge, the East Bay hills, Tiburon, and even the distant San Francisco skyline on clear days. During the rainy season, the 25-foot cascading Fairfax Falls is a charming attraction. The preserve also features diverse ecosystems with wildflowers in spring, dense bay woods, and oak woodlands.

Are there any circular no traffic touring cycling routes?

Yes, many of the no traffic touring cycling routes in Loma Alta Open Space Preserve are designed as loops. For example, the White Hill and Blue Ridge Fire Roads Loop is a moderate 14.5 km route that offers a great circular experience. Another option is the more challenging Phoenix Lake – Alpine Lake - Bon Tempe Dam loop from Fairfax, which covers about 27 km.

What is the best time of year to go touring cycling in Loma Alta Open Space Preserve?

Spring is particularly beautiful, with rolling hills bursting into color with wildflowers. The rainy season (winter) brings the Fairfax Falls to life. Generally, spring and fall offer pleasant temperatures for cycling. Summers can be warm, while winters are mild but may involve wet trails.

What do other touring cyclists enjoy most about cycling in Loma Alta Open Space Preserve?

The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the extensive network of fire roads and trails that provide a true 'no traffic' experience, the stunning panoramic views from the summit, and the diverse natural beauty, especially during wildflower season.

Where can I park when visiting Loma Alta Open Space Preserve for a bike ride?

Loma Alta Open Space Preserve has several access points with parking. Notable trailheads include the White Hill Trailhead and the White Hill — Old Railroad Grade upper trailhead. These locations provide convenient starting points for exploring the no traffic touring cycling routes.

Are dogs allowed on the no traffic touring cycling routes?

While the region research indicates that Loma Alta Open Space Preserve is generally dog-friendly, specific rules regarding dogs on cycling trails can vary. It's always best to check local signage at trailheads or the official Marin County Parks website for the most current regulations on dogs, especially regarding leash requirements and permitted areas.

Are there any particularly challenging no traffic touring cycling routes?

Yes, Loma Alta Open Space Preserve offers 14 difficult-rated touring cycling routes for those seeking a challenge. An example is the Lake Lagunitas Dam – Eldridge Grade Fire Road loop from Fairfax, which is approximately 21.9 km with significant elevation gain. These routes often feature longer distances and more substantial climbs.

Can I access Loma Alta Open Space Preserve using public transport?

While direct public transport access to all trailheads might be limited, the preserve is located near Fairfax, which may have bus services. For detailed public transport options to specific access points, it is recommended to consult local transit schedules or plan your route using a public transport app.

What kind of wildlife might I encounter on the trails?

Loma Alta Open Space Preserve is a vital breeding ground for various bird species, including horned larks, western meadowlarks, and western bluebirds. It is also home to a rich variety of raptors. Keep an eye out for these birds, especially in the open grasslands and woodlands.

Most popular routes in Loma Alta Open Space Preserve

Family-friendly hikes in Loma Alta Open Space Preserve

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