4.4
(147)
1,175
riders
66
rides
Mountain biking around Saint-Germain-De-Joux offers diverse terrain within the Jura Mountains, characterized by rolling hills, dense forests, and alpine meadows. The region features an extensive network of trails, including sections of the Grande Traversée du Jura (GTJ) mountain bike route. Riders can expect varied landscapes, from technical singletrack to winding descents, with views of surrounding peaks and glacial lakes. The area provides options for different skill levels, from dedicated bike park sectors to longer cross-country routes.
Last updated: July 11, 2026
5.0
(3)
40
riders
84.6km
07:34
2,020m
2,020m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.0
(1)
11
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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5.0
(1)
10
riders
28.2km
02:45
570m
570m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
8
riders
88.6km
08:18
2,380m
2,380m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.0
(3)
8
riders
21.7km
01:59
500m
500m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Nestled in pastures at an altitude of 1,000 meters, Giron is the highest (and sunniest!) village in the Ain. Welcoming, with breathtaking views, it is ideal for an overnight stop.
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Located in Saint-Germain-de-Joux, the Marmites de Géant (Giant's Cauldrons) were carved by the Semine river and its tributary the Combet. Gigantic cylindrical hollows, two to three meters deep, are connected by a few successive waterfalls.
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Pretty little lake in the heart of the small Jura mountains
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A pretty little village and at the top of the mountains a breathtaking landscape 🌟✨
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A 10 km climb from the small roundabout in Châtillon, it's more like 14 km from the Nantua road or the center of Bellegarde. The gradient is fairly steady, ranging from 5.5% to 7.2%, with about ten small steep sections at +8.5%. Very quiet, with very few cars. The road is generally in good condition, but nothing more. There are some beautiful views along the way.
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Extraordinary panorama, ideal place for a break on the GTJ route, a picnic or even a stopover in a gîte (booking: https://refugelaconay.clubalpinbourgenbresse.fr/reservation/)
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The Col de Bérentin connects the Valserine Valley to the Retord Plateau, passing through the beautiful Jura forests. Its ascent is gradual and the road is little traveled.
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There are over 65 mountain bike trails in the Saint-Germain-De-Joux area. These routes offer a variety of experiences, from easier rides to challenging long-distance tours through the Jura Mountains.
The terrain around Saint-Germain-De-Joux is diverse, featuring rolling hills, dense forests, and alpine meadows characteristic of the Jura Mountains. You'll find extensive forest trails, technical singletrack, and winding descents, with varied elevation profiles.
Yes, Saint-Germain-De-Joux offers options for various skill levels. While many routes are moderate to difficult, there are 12 easy trails available. The broader Ain region also has family-friendly loops, and dedicated bike parks like Monts Jura Bike Park offer accessible blue runs for beginners.
Mountain biking in the region offers stunning views of the Jura Mountains, including distant glimpses of Mont Blanc. You can also find glacial lakes, such as Lake Nantua and Lake Genin, and natural wonders like the Pertes de la Valserine waterfall. The Col de Bérentin also offers scenic vistas.
Yes, many routes in Saint-Germain-De-Joux are circular. For example, the challenging Cuvéry Pass – Plateau de Retord loop from Saint-Germain-de-Joux is a popular option, as is the moderate Sur la Croix – Bois Rond loop from Échallon.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 80 reviews. Riders often praise the extensive forest trails, the varied elevation profiles, and the beautiful views of the Jura Mountains.
While many trails in the Jura Mountains are dog-friendly, it's always best to check local regulations for specific routes or protected areas. Ensure your dog is well-behaved, on a leash where required, and that you carry waste bags.
Yes, the Monts Jura Bike Park is accessible via the Col de la Faucille, Lélex, and Crozet. It offers dedicated downhill sectors with runs ranging from accessible blue to challenging red and black, complete with cable car access. This provides a more technical experience beyond the natural trails.
The spring, summer, and early autumn months generally offer the best conditions for mountain biking in the Jura Mountains, with pleasant temperatures and open trails. Always check local weather forecasts and trail conditions before heading out, especially after heavy rain or during shoulder seasons.
A good moderate option is the La Roche Fauconnière – Viewpoint of Roche Fauconnière loop from Champfromier. This 24.0 km route takes approximately 2 hours 23 minutes to complete and offers scenic views without the extreme difficulty of some longer trails.
Yes, Saint-Germain-De-Joux serves as a starting point for a stage of the renowned Grande Traversée du Jura (GTJ) mountain bike route. This extensive network spans 415 kilometers across the Jura mountain range, offering opportunities for multi-day touring adventures.
Experienced riders can tackle routes like the La borne au lion – La Roche Fauconnière loop from Giron, a difficult 38.6 km path with notable climbs and descents. Another challenging option is the La Roche Fauconnière – la borne au lion loop from Giron, which is 33.6 km and features panoramic viewpoints.


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