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MTB trails
France
Auvergne Rhône Alpes
Nantua

Izernore

The best MTB trails around Izernore

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.

Best mountain bike trails around Izernore

  • The most popular mountain bike…

Last updated: June 27, 2026

4.5

(15)

28

riders

#1.

Lac de Nantua – Lake Nantua loop from Port

31.0km

02:05

250m

250m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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Tips from the Community

Nicolas Vergnaud
May 11, 2026, Lac de Nantua

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.

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Lucie
August 27, 2025, Lac de Nantua

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

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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).

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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.

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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.

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Impressive rock above Mantua

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oester
May 14, 2024, Lac de Nantua

Nice bike tour along the lake

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Alex Fox
March 3, 2024, Lac de Nantua

Natural jewel, sapphire blue or emerald green waters, nautical activities.

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Frequently Asked Questions

How many mountain bike trails are available around Izernore?

There are over 130 mountain bike trails recorded around Izernore on komoot, offering a wide variety of options for different skill levels.

What types of terrain can I expect on mountain bike trails near Izernore?

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.

Are there any easy mountain bike trails suitable for beginners or families in Izernore?

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.

What are the most challenging mountain bike trails around Izernore?

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.

What do other mountain bikers say about the trails in Izernore?

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.

Are there mountain bike trails that offer views of lakes or other natural features?

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.

What interesting landmarks or attractions can I see near the mountain bike trails?

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.

Are there any long-distance mountain bike routes in the Izernore area?

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.

Can I find circular mountain bike routes around Izernore?

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.

What is the typical duration for mountain bike trails in Izernore?

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.

Are there mountain bike trails that pass by other lakes besides Lac de Nantua?

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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