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Routes
MTB trails
France
Auvergne Rhône Alpes
Gex

Réserve naturelle de la haute chaîne du Jura

Routes
MTB trails
France
Auvergne Rhône Alpes
Gex

Réserve naturelle de la haute chaîne du Jura

The best MTB trails around Réserve naturelle de la haute chaîne du Jura

4.3

(882)

6,973

riders

599

rides

Mountain biking around Réserve naturelle de la haute chaîne du Jura offers diverse terrain across a protected area spanning nearly 11,000 hectares. The region is characterized by significant elevation changes, ranging from 580 meters to 1720 meters, featuring high peaks, dense forests, and extensive alpine pastures. Geological formations, including anticlinal combs and karst features, contribute to a varied landscape suitable for mountain biking. This natural reserve provides a network of routes that traverse its unique ecosystems and dramatic vistas.

Best…

Last updated: May 30, 2026

4.4

(8)

44

riders

#1.

Crozet Pass – Petit Montrond loop from Mijoux

30.0km

02:38

790m

800m

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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Hard

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

Easy
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Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard

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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Popular around Réserve naturelle de la haute chaîne du Jura

Pays de Gex - Monts Jura : Les randonnées officielles

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Pays de Gex - Monts Jura : Les randonnées officielles

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Pays de Gex - Monts Jura

Tips from the Community

Julien Harté
April 27, 2026, Voie verte Gex - Divonne-les-Bains

The greenway connecting Gex to Divonne-les-Bains is an easy and pleasant developed route that crosses the green landscapes between the Jura mountains and Lake Geneva. In Divonne, several routes provide easy access to its lake, as well as the mountain bike trails of Mont Mourex, which are very popular with nature and thrill-seekers.

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The Chemin des Druides is a forest trail in the heart of the Jura. It captivates with its bucolic atmosphere and natural landscapes, offering a pleasant walk between nature and legends.

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Located in the Pays de Gex, east of the Ain department, the Château de Vesancy is an elegant residence surrounded by a wooded park. It offers a peaceful setting steeped in history, typical of the region's castles.

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Denis
November 10, 2025, Petit Montrond

One of the most beautiful viewpoints over the Alps that I know! Access from the Col de la Faucille is quite simple.

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magnificent view of Lake Geneva, Salève and Mont Blanc

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Technical blue line. Can be difficult

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Yann
April 11, 2025, Belle descente fun

some technical downhill passages

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Very nice access paths and landscape. There are two sections a bit more technical but doable by average rider like me. First section going up to Mont Mourex (road with some round rocks and a bit muddy when it rains). Second section on the way to the longest loop where the trail is a bit narrow and deep (probably due to rain water going through during winter). In any case, is doable. Just take your time and keep focus :) Definitely a ride to do more times

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Frequently Asked Questions

How many mountain bike trails are available in Réserve naturelle de la haute chaîne du Jura?

The Réserve naturelle de la haute chaîne du Jura offers a wide selection of mountain bike trails, with over 580 routes available. These trails cater to various skill levels, including 86 easy, 329 moderate, and 174 difficult options.

Are there any easy mountain bike trails suitable for beginners in the Réserve naturelle de la haute chaîne du Jura?

Yes, there are 86 easy mountain bike trails in the Réserve naturelle de la haute chaîne du Jura, perfect for beginners or those looking for a more relaxed ride. An example of an easy route is the View of Mont Blanc – View from Mont Mourex loop from Le Fleutron, which covers 14.2 km.

What kind of terrain can I expect on mountain bike trails in the Réserve naturelle de la haute chaîne du Jura?

Mountain biking in the Réserve naturelle de la haute chaîne du Jura features diverse terrain, from dense forests and extensive alpine pastures to significant elevation changes ranging from 580 to 1720 meters. You'll encounter varied landscapes shaped by geological folding and glacial erosion, including anticlinal combs, cliffs, and karst features. Some trails offer flowy, shaped sections, while others present rocky and rooty technical challenges.

What are some notable viewpoints or natural features to see along the mountain bike trails?

The region is rich in dramatic peaks and natural features. You can enjoy expansive views from summits like Crêt de la Neige, the highest point, or Colomby de Gex Summit. Many routes, such as the Crozet Pass – Mont Blanc View loop from Mijoux, offer distant glimpses of Mont Blanc and panoramic views of the Jura massif and Lake Geneva.

Are there any regulations or permits required for mountain biking in the Réserve naturelle de la haute chaîne du Jura?

As a protected National Natural Reserve, specific regulations are in place to preserve the environment. Mountain biking is generally authorized only on roads and forest tracks that explicitly permit non-motorized vehicles, or on itineraries specifically marked for cycling. It's crucial to stay on marked paths and adhere to the general regulations and the decree establishing the natural reserve. Signs at the reserve's entrances provide detailed information.

Can I bring my dog on the mountain bike trails?

No, dogs are generally prohibited in the Réserve naturelle de la haute chaîne du Jura, even on a lead. This regulation is in place to prevent disturbance to the sensitive wildlife and livestock within the protected area.

What is the best time of year for mountain biking in the Réserve naturelle de la haute chaîne du Jura?

The best time for mountain biking is typically during the warmer months, from late spring to early autumn. During this period, trails are generally clear of snow, and the weather is more favorable. However, conditions can vary, so it's always advisable to check local weather forecasts and trail conditions before heading out.

Are there any challenging mountain bike trails for experienced riders?

Yes, the Réserve naturelle de la haute chaîne du Jura offers 174 difficult mountain bike trails for experienced riders. Routes like the Fun descent – Downhill mountain bike trail loop from Parking du Tiocan provide significant downhill sections and dynamic riding experiences, while the Col de Branvaux – View of the Jura Mountains loop from La Goutte offers challenging climbs and panoramic views.

What do other mountain bikers enjoy most about the trails in Réserve naturelle de la haute chaîne du Jura?

The mountain bike trails in Réserve naturelle de la haute chaîne du Jura are highly rated by the komoot community, with an average score of 4.3 stars from over 870 reviews. Reviewers often praise the diverse terrain, the breathtaking panoramic views of the Jura massif and Lake Geneva, and the sense of adventure offered by the varied routes.

Are there any circular mountain bike routes available?

Yes, many mountain bike routes in the Réserve naturelle de la haute chaîne du Jura are designed as circular loops, allowing you to start and finish at the same point. Examples include the Crozet Pass – Mont Blanc View loop from Mijoux and the Fierney – Crozet Pass loop from Zone protegee.

Is there parking available near the mountain bike trailheads?

Yes, parking is generally available at designated areas near many trailheads. However, as a protected area, visitors are required to park in these designated spots to minimize impact on the sensitive ecosystem. Check specific route details on komoot for recommended starting points and parking information.

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