4.3
(141)
865
riders
138
rides
Mountain biking around Izernore, located in the Ain department of France, offers a diverse landscape for riders. The region is characterized by its proximity to Lac de Nantua and the Oignin Valley, providing a mix of lakeside paths and forested trails. Terrain varies from gentle slopes suitable for leisure rides to more challenging ascents and descents. The area's natural features include water bodies and woodlands, creating varied riding conditions.
Last updated: June 27, 2026
4.5
(15)
28
riders
31.0km
02:05
250m
250m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
10
riders
36.3km
03:58
1,120m
1,120m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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5.0
(2)
15
riders
23.9km
01:26
200m
200m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(3)
14
riders
46.5km
03:55
690m
690m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
9
riders
38.1km
02:57
710m
710m
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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The Lac de Nantua is a superb body of water of 141 hectares. In the heart of the Jura, it offers an ideal setting for practicing a multitude of sports. It is even possible to swim in its waters.
1
0
Beautiful, simple, easy walk; lots of traffic noise on the "road" section, a bit of a shame, but the color of the water is magical
1
0
This trail has a lot of stones and rock slabs (be careful of slipping!). There are also a few roots at times. Otherwise, the gradient is generally reasonable, except for a brief section of switchbacks that crosses a rockfall zone (a few meters of pushing is expected for most mountain bikers).
0
0
A typical Jura ridge trail: cliff on one side, forest on the other, sharp rocks and large roots peeking out, and constant steep sections (uphill and downhill). It's not the worst I've seen: aside from the steep sections, no section is technically impossible for an experienced mountain biker. The view of the Grand Crêt d'Eau, the Crêt de Chalam, and the Haut-Jura is also pretty good.
0
0
Unfortunately I was unlucky with the weather, but even as I drove past the place looked very nice, lots of grass and a place to swim.
0
0
Impressive rock above Mantua
0
0
Natural jewel, sapphire blue or emerald green waters, nautical activities.
1
0
There are over 130 mountain bike trails recorded around Izernore on komoot, offering a wide variety of options for different skill levels.
The terrain around Izernore is diverse, featuring lakeside paths, forested sections, and rolling hills. You'll find a mix of gentle slopes suitable for leisure rides and more challenging ascents and descents, particularly around Lac de Nantua and the Oignin Valley.
Yes, Izernore offers 14 easy mountain bike trails. An example is the Camping at Lake Nantua loop from Martignat, which is 23.7 km long and has minimal elevation gain, making it a good option for a relaxed ride.
For experienced riders seeking a challenge, there are 35 difficult trails. The View of the Colonne de Nantua – Lake Nantua loop from Brion - Montréal-la-Cluse is a notable difficult route, covering 37.5 km with significant elevation gain.
The mountain bike trails around Izernore are highly rated by the komoot community, with an average score of 4.4 out of 5 stars from over 130 reviews. Riders often praise the varied terrain and the scenic beauty, especially around Lac de Nantua.
Many trails in the Izernore area feature stunning views of lakes, particularly Lac de Nantua. The region is characterized by its proximity to this lake and the Oignin Valley, providing picturesque routes. You can also find highlights like Lake Nantua and View over Lake Nantua along various routes.
Beyond the natural beauty of the lakes, you can explore historical sites such as the Oliferne Castle Ruins or the impressive Cize-Bolozon Viaduct. These attractions can be incorporated into your mountain biking adventures.
Yes, some routes offer longer distances. For example, the Downhill am/dh – Camping at Lake Nantua loop from Martignat is a moderate trail stretching over 46 km, providing a substantial ride.
Many of the mountain bike trails around Izernore are designed as loops, allowing you to start and finish at the same point. Examples include the various loops around Lac de Nantua, such as the Lac de Nantua – Lake Nantua loop from Port.
Trail durations vary significantly based on length and difficulty. Easy routes like the Camping at Lake Nantua loop from Martignat might take around 1 hour 15 minutes, while more challenging and longer trails can take 4 hours or more, such as the View of the Colonne de Nantua – Lake Nantua loop from Brion - Montréal-la-Cluse.
Yes, the region features several beautiful lakes. While Lac de Nantua is prominent, you can also find highlights like Lake Genin and Along Lake Coiselet in the vicinity, which may be accessible via or near some mountain bike routes.


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