4.3
(376)
3,082
riders
185
rides
Mountain bike trails around Thoiry, located in the Ain department of France within the Pays de Gex region, offer diverse landscapes for outdoor activities. The area features varied terrain, from forest trails to open paths, set against the backdrop of the Jura Mountains and distant Alpine views. Riders can expect routes with significant elevation gains, providing a range of challenges. The region's natural features include extensive forest trails suitable for mountain biking.
Last updated: June 17, 2026
4.6
(7)
80
riders
39.5km
04:52
1,460m
1,460m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
3.8
(4)
27
riders
24.5km
02:14
640m
640m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.0
(2)
15
riders
28.9km
02:56
860m
860m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
3.0
(1)
20
riders
45.6km
04:14
1,190m
1,190m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
3.5
(2)
16
riders
17.0km
02:01
720m
720m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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Superb stretch of road with unobstructed views of the snow-covered Belledonne and Bauges mountains, plunging views of the Apremont vineyards which we have just crossed at the beginning of this beautiful climb up the Col du Granier!
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True location of the Pass, arrival marker and sign at the summit.
1
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Refreshing in case of strong heat
0
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Rolling and pleasant paths flooded in some places
0
0
More interesting climb via the "direct" route, via Rocher Rousset, from Challes-les-Eaux.
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gravel junction between the Marocaz pass and Aillon le jeune; a hundred meters of pushing on a steep slope
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Mountain biking in Thoiry offers a diverse range of terrain. You'll find a mix of forest trails and open paths, set against the stunning backdrop of the Jura Mountains and distant Alpine views. The area features varied landscapes, providing different riding experiences.
Yes, Thoiry offers several challenging routes with significant elevation gains, some exceeding 3,000 feet. For example, the Ferme des résistants – Camelot Gorge loop from Saint-Jean-d'Arvey is a difficult trail with over 1,400 meters of ascent, taking nearly 5 hours to complete.
While Thoiry is known for its challenging routes, there are also options for moderate rides. The Coche Pass loop from Barby is a moderate 24.6 km path that offers a balanced ride through natural landscapes with rewarding views, suitable for those looking for a less strenuous experience.
Thoiry's location in the Pays de Gex provides breathtaking panoramic views of Geneva and the majestic Alps. You'll ride through extensive forest trails and open paths, allowing you to admire the vast scenery stretching from Geneva to the Alpine peaks and serene lakes. Some routes, like the Cascade de la Doriaz – Passerelle de Lovettaz loop from Barby, also lead through varied natural landscapes.
Yes, the region around Thoiry offers several interesting landmarks and viewpoints. You can find mountain passes such as Marocaz Pass, Col du Frêne (950 m), and Plainpalais Pass. Additionally, you might encounter summits like Nivolet Cross and Mount Revard, offering stunning vistas.
Yes, Thoiry in Pays de Gex boasts a pumptrack. This facility is an ideal playground for cyclists of all skill levels, from beginners to experienced riders, to experiment with bumps, banked turns, and other modules. It's a great place to develop skills, endurance, and coordination in a safe environment.
The best time for mountain biking in Thoiry generally aligns with the warmer months when trails are clear of snow and mud. While specific seasons aren't detailed, the region's diverse terrain and forest trails are typically most enjoyable from spring through autumn. Always check local weather conditions before heading out.
Many of the mountain bike trails in Thoiry are designed as loops, offering circular routes that bring you back to your starting point. Examples include the Marocaz Pass – Lake La Thuile loop from Chartreuse d'Aillon, which is a difficult 28.9 km route, and the Sciaz Pass – Praz Gelaz Chalets loop from Chartreuse d'Aillon, another challenging option.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 350 reviews. Reviewers often praise the diverse landscapes, the stunning Jura mountain backdrops, and the varied terrain that offers options for different ability levels, from moderate rides to challenging routes.
There are over 180 mountain bike trails available around Thoiry, catering to a wide range of skill levels. This includes approximately 25 easy routes, 70 moderate routes, and nearly 90 difficult routes, ensuring there's something for every mountain biker.
While specific parking locations for every trailhead are not detailed, the region is well-equipped for outdoor activities. Many popular starting points for trails, especially those leading to prominent peaks or known loops, typically have designated parking areas. It's advisable to check the specific route details on komoot for parking information related to your chosen trail.


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