4.4
(131)
802
riders
86
rides
Mountain biking around Bolozon, located in the Ain department of the Auvergne Rhône-Alpes region in eastern France, offers diverse landscapes for cyclists. The area features varied terrain, including unpaved segments and significant elevation changes, suitable for different skill levels. The Ain Valley, with its river and the notable Cize-Bolozon Viaduct, forms a central part of the region's natural features. Dense woodlands and access to the broader Jura mountains further define the natural environment for mountain bike trails Bolozon.
Last updated: June 27, 2026
5.0
(4)
19
riders
33.0km
02:59
630m
630m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(1)
34
riders
46.0km
04:25
1,010m
1,010m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

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5.0
(1)
16
riders
26.0km
02:18
510m
510m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.5
(2)
9
riders
22.2km
01:27
280m
280m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(1)
8
riders
10.8km
01:04
240m
240m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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An impressive work that has its Wikipedia page https://fr.wikipedia.org/wiki/Viaduc_de_Cize-Bolozon
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This superb wild natural site overlooks the river d’Ain. Lined with spectacular cliffs, it offers remarkable panoramas from its trails and viewpoints.
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Nestled in a spectacular natural setting, the viaduct offers superb viewpoints over the Ain gorges. Built at the beginning of the 20th century and then rebuilt after the Second World War in 1950, it illustrates the railway and road heritage of the territory.
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pretty little stone viaduct with 2 superimposed lanes, one for cars with 6 arches and one for the train with 11 arches. Atypical.
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Beautiful paved road, but for those who prefer dirt tracks, cross to the other side of the river! There won't be any cars and the views are even more beautiful.
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Pretty little viaduct which is a real must-see!
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Magnificent viaduct, nice spot for an outing in Ain.
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Definitely worth a visit, you simply have to include this double-decker bridge in your itinerary.
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There are nearly 80 mountain bike trails around Bolozon, offering a wide range of options for different skill levels. This includes 12 easy routes, 50 moderate routes, and 16 difficult routes, ensuring there's something for everyone.
Mountain biking in Bolozon features diverse terrain, from unpaved segments and dense woodlands to routes with significant elevation changes. You'll find paths through the Ain Valley, along the Ain River, and around notable landmarks like the Cize-Bolozon Viaduct, catering to various riding preferences.
Yes, Bolozon offers several easy mountain bike trails suitable for families. One popular option is the Cize-Bolozon Viaduct – Cize-Bolozon Viaduct loop from Cize, which is 22.2 km long with moderate elevation gain, providing scenic views without being overly challenging.
The most iconic landmark is the Cize-Bolozon Viaduct, a double-deck bridge offering beautiful views of the Ain Valley. Many routes incorporate this feature, such as the Corveissiat Cave – Cize-Bolozon Viaduct loop from Cize. You might also encounter the Ain River and various forest viewpoints.
Absolutely. For experienced riders seeking a challenge, routes like the Cize-Bolozon Viaduct – Cize-Bolozon Viaduct loop from Cize - Bolozon offer significant elevation gain, reaching over 1000 meters, and cover longer distances, providing a demanding ride through the region's varied landscape.
The mountain bike trails in Bolozon are highly rated by the komoot community, with an average score of 4.3 stars from over 125 reviews. Riders often praise the diverse terrain, the scenic views of the Ain Valley and the Cize-Bolozon Viaduct, and the variety of routes available for different skill levels.
Yes, beyond the trails, you can explore several natural attractions. These include the picturesque Lake Nantua, the fascinating Grotte de Corveissiat, and the beautiful Cascade de la Pisse Vache. The Ain River itself also offers opportunities for relaxation and water activities.
Many of the mountain bike trails in Bolozon are designed as loops, allowing you to start and finish at the same point. Examples include the Notre Dame des Conches loop from Simandre-sur-Suran and the Seen Ain river dam – Viewpoint overlooking the Ain loop from Simandre-sur-Suran, which offer varied distances and difficulties.
Bolozon is generally suitable for mountain biking through spring, summer, and autumn. The diverse landscapes, including dense forests, provide shade in warmer months, while the varied terrain offers beautiful scenery during spring blooms and autumn foliage. Always check local weather conditions before heading out.
While primarily known for its natural beauty, the region around Bolozon does have some historical points of interest. You could visit the Ruins of Jasseron Castle or the Chartreuse de Sélignac, which are within reasonable distance and can be combined with a ride for a richer experience.
The duration of mountain bike rides in Bolozon varies significantly depending on the trail's length and difficulty. Easy routes, like the 22.2 km Cize-Bolozon Viaduct loop, can take around 1 hour 30 minutes, while more difficult and longer trails, such as the 46.1 km Cize-Bolozon Viaduct – Cize-Bolozon Viaduct loop from Cize - Bolozon, might require over 4 hours to complete.


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