The best traffic-free bike rides in the San Gabriel Mountains

There are at least 10 dedicated no-traffic gravel bike trails featured in this guide, all offering a challenging and rewarding experience for cyclists.

The San Gabriel Mountains are known for their rugged peaks, steep canyons, and diverse landscapes. You can expect extensive networks of unpaved roads and trails, often involving significant climbs and descents. These routes are generally considered difficult, providing a good workout amidst stunning scenery.

Yes, several routes are designed as loops, allowing you to start and finish in the same location. For example, the Mueller Tunnel – Mueller Tunnel loop from Altadena offers a challenging 42 km ride with over 1600 meters of elevation gain. Another option is the Cherry Canyon Park – Ridge Motorway loop from La Cañada Flintridge.

Many trails offer breathtaking views and pass by significant landmarks. The Ye Alpine Tavern ruins – Inspiration Point loop from John Muir High School takes you past historical sites and offers panoramic vistas from Seven Trees Overlook. The Mount Thom Viewpoint – Verdugo Peak loop also provides excellent scenic opportunities.

The best time to experience these routes is typically from spring to fall. During winter, higher elevations can experience snow, making some trails impassable or more challenging. Spring brings wildflowers, while fall offers cooler temperatures and clear views.

While many routes offer a sense of remoteness, you can find some facilities. For instance, the Crystal Lake Campsite and Cafe is a notable spot. Additionally, several huts and campgrounds like San Antonio Ski Hut and Messengers Flat Campground are located within the wider San Gabriel Mountains area, though their proximity to specific no-traffic gravel routes may vary.

The San Gabriel Mountains are highly rated by the komoot community, with an average score of 4.4 stars. Reviewers often praise the challenging climbs, the sense of wilderness despite being close to Los Angeles, and the stunning panoramic views, especially from high points like Mount Baldy.

For experienced riders seeking a longer challenge, the Mueller Tunnel – Mueller Tunnel loop from Altadena is a substantial option, covering nearly 42 kilometers with over 1600 meters of climbing. Another demanding route is the Verdugo Crest Trail Trailhead – Verdugo Peak loop from Burbank Airport–North, which is over 38 kilometers long.

The San Gabriel Mountains boast a diverse ecosystem, ranging from high alpine environments to Mediterranean climates. You'll encounter rugged peaks, deep canyons, and vital water resources like streams and arroyos. The region is also home to unique flora and fauna, offering a rich natural experience.

The no-traffic gravel bike trails listed in this guide are all rated as 'difficult' due to significant elevation changes and technical terrain. While they offer a fantastic experience for seasoned gravel bikers, they may not be suitable for beginners or young families looking for an easy ride. It's recommended to have prior gravel biking experience and a good level of fitness for these routes.