4.7
(31)
1,164
riders
4
rides
Road cycling in French Ranch Open Space Preserve offers a network of no traffic routes through diverse landscapes in Marin County, California. The preserve features deep forested canyons with redwood, oak, and Douglas-fir trees, alongside ridges that provide expansive views of the surrounding valleys. Terrain includes both paved sections and fire roads, with significant elevation changes on some routes. This 403-acre area is part of the Lagunitas Creek watershed, contributing to its natural features.
Last updated: November 6, 2026
5.0
(5)
108
riders
46.6km
02:40
1,040m
1,040m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(8)
79
riders
34.8km
01:59
800m
800m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around French Ranch Open Space Preserve
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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Paved section riding on the ridge between Pan Toll Road and Fairfax-Bolinas Road where it contains as Bolinas Ridge Trail, with spectacular views along the way toward the Pacific Ocean and Stinson Beach far below. The road is open during daylight hours only, in winter that means 9am to sunset.
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Constructed in 1917 this dam forms Alpine Lake, which sites between Kent and Bon Tempe Lakes. The road across the top of the dam make it a great place to ride on a loop around the lake.
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This lake was formed by the building of Alpine Dam in 1917. It sits between Kent Lake and Bon Tempe Lake, and is popular for a variety of outdoor activities.
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Set beneath the towering trees of Mount Tam, Rock Springs is the perfect jumping-off point for scenic hikes and quiet picnics—where trails, wildlife, and wide-open views begin.
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Good supporter of Marin Biking and nice lot to start your ride from and have a beer after
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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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There are 3 dedicated no-traffic road cycling routes documented in French Ranch Open Space Preserve, catering to various skill levels from easy to difficult. These routes are designed to offer a serene cycling experience away from vehicular traffic.
The no-traffic routes in French Ranch Open Space Preserve primarily utilize fire roads and multi-use trails. While some sections might be paved, many are dirt and gravel. For instance, the French Ranch Fire Road itself is described as a dirt/gravel road. Cyclists should be prepared for varied terrain, including potentially rocky or rutted sections on wider fire roads.
Given the prevalence of fire roads and gravel surfaces, a traditional road bike with wider tires would be more comfortable, and a gravel or touring bike would likely offer the most enjoyable experience. While adventurous road cyclists can navigate some segments, the varied terrain and potential for rocky sections make bikes designed for off-pavement riding more suitable for many of these no-traffic routes.
The routes offer a range of difficulties. You can find an easy route like the School – Historic Dixie Schoolhouse loop, a moderate route such as the Nicasio – Nicasio Reservoir loop, and a more difficult option like the Alpine Lake – Alpine Dam loop. This variety ensures there's something for different fitness levels.
Yes, there is an easy route suitable for families looking for a less challenging ride. The School – Historic Dixie Schoolhouse loop is a great option, covering approximately 14 km with minimal elevation gain, making it accessible for a family outing.
Cyclists can enjoy diverse landscapes, including deep forested canyons with Douglas-fir, redwood, oak, and tanoak trees. A significant highlight is the connection to Roy's Redwoods Open Space Preserve, featuring ancient redwood groves, some nearly 300 feet tall. You can explore Roy's Redwoods Open Space Preserve and the Roy's Redwoods Loop Trail. Additionally, ridge-top ascents, like those leading to Moon Hill Summit – Nicasio Valley Road or the French Ranch Fire Road, offer panoramic views of the San Geronimo Valley.
The preserve offers enjoyable cycling throughout much of the year. Spring is particularly beautiful with vibrant wildflowers like lupines and California poppies. The shaded redwood groves provide a refreshing environment, especially during warmer months. It's always a good idea to check local weather conditions before heading out.
Yes, several routes are designed as loops, allowing you to start and end at the same point. Examples include the Alpine Lake – Alpine Dam loop from Fairfax, the Nicasio – Nicasio Reservoir loop, and the School – Historic Dixie Schoolhouse loop.
The area is highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the diverse landscapes, the tranquility of the redwood groves, and the rewarding panoramic views from the ridge-tops. The ability to cycle away from traffic on varied terrain is a significant draw.
Specific parking information for each trailhead is usually detailed within the individual route descriptions on komoot. Many routes, like the Nicasio – Nicasio Reservoir loop and the School – Historic Dixie Schoolhouse loop, start from areas like Mount McKinley Road & Idylberry Road, where parking is typically available. It's recommended to check the starting point details for your chosen route for precise parking guidance.
While the preserve itself is a natural area, the nearby towns of Woodacre, San Geronimo, and Lagunitas-Forest Knolls offer various cafes, pubs, and restaurants where you can refuel and relax after your ride. These towns are typically a short distance from the preserve's access points.


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