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France
Bourgogne-Franche-Comté
Lons-Le-Saunier

Entre-Deux-Monts

The best MTB trails around Entre-Deux-Monts

4.5

(287)

1,591

riders

131

rides

Mountain bike trails around Entre-Deux-Monts navigate a landscape characterized by a mix of forests, lakes, and varied terrain. The region features several notable water bodies, including Lac de Narlay and Grand Maclu Lake, which are often incorporated into routes. Old railway lines, such as the Tramjurasienne, have been repurposed, offering unique tunnel sections for mountain bikers. This area provides a diverse environment for mountain biking, from lakeside paths to forested climbs.

Best mountain bike trails around Entre-Deux-Monts

  • The most popular mountain bike trail is Shore of Lac de Narlay – Grand Maclu Lake loop from Chaux-des-Crotenay, a 13.0 miles (20.9 km) trail that takes 1 hour 21 minutes to complete. This route offers scenic views of the two lakes and surrounding natural areas.
  • Another top favourite among local mountain bikers is Tunnel de 180 m de long sur la Tramjurasienne editorial name for French users – The ghost tunnel! loop from Chaux-des-Crotenay, a moderate 17.9 miles (28.7 km) path. This trail features a unique tunnel section along an old railway line, providing an interesting riding experience.
  • Local mountain bikers also love the The ghost tunnel! – Shore of Lac de Narlay loop from La Chaumusse - Fort-du-Plasne, a 40.7 miles (65.5 km) trail leading through varied terrain including lakeside sections and the notable ghost tunnel, often completed in about 4 hours 56 minutes.
  • Mountain biking around Entre-Deux-Monts is defined by its clear lakes, dense forests, and repurposed railway tunnels. The network offers options for easy, moderate, and difficult routes, catering to different ability levels.
  • The routes in Entre-Deux-Monts are highly rated by the komoot community with an average score of 4.5 stars from more than 290 reviews. More than 1,600 mountain bikers have used komoot to explore Entre-Deux-Monts's varied terrain.

Last updated: July 6, 2026

4.6

(38)

218

riders

#1.

Grand Maclu Lake – Shore of Lac de Narlay loop from La Chaux-des-Crotenay

31.0km

02:23

430m

430m

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

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

Moderate
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Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Popular around Entre-Deux-Monts

Road Cycling Routes around Entre-Deux-Monts

Cycling around Entre-Deux-Monts

Hiking around Entre-Deux-Monts

Running Trails around Entre-Deux-Monts

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Mountain Hikes around Entre-Deux-Monts

Tips from the Community

TinkaBuster
October 3, 2025, The ghost tunnel!

Cool passage, definitely take a lamp.

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Kristian
September 2, 2025, La Saine

Confluence of the Ruisseau d'Entre Côtes stream into the course of La Saine.

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2

0

A former, unlit railway tunnel with a length of 180 meters. A flashlight is extremely helpful here, as there are quite large stones in some places that are invisible in the dark.

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7

1

Kristian
September 1, 2025, Lac du Grand Maclu

A gravel, easy-to-walk hiking trail runs along the lakeshore, offering repeated, beautiful views of Lac Le Grand Maclu.

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5

0

Kristian
September 1, 2025, Lac du Grand Maclu

Small, rocky stretch of beach that you can climb down to, as well as good views of Lac Le Grand Maclu.

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5

0

Great view of the valley.

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The Bief de la Ruine waterfall is located in the spectacular Malvaux Gorge. One of the most astonishing features of this waterfall is the fact that it only comes alive after heavy rainfall or during snowmelt. When it dries, it gives way to the spectacle of the carved stone, revealing the "Creux des Joyaux," a natural cave where the water swirls with varying degrees of vigor, polishing a multitude of limestone pebbles thanks to the force of its current.

Translated by Google

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Lacs de Maclu are two adjacent lakes in the western part of the French Jura, in the Jura department of Franche-Comté. They are located at an elevation of 779 m in a depression in the High Jura, in the region of the Five Lakes near Le Frasnois, about 12 km south of Champagnole. The Petit Maclu, located to the northeast, has an area of 5 hectares, a length of about 500 m, and a maximum width of about 120 m. Its greatest depth is 11 m. It lies entirely within the municipal territory of Le Frasnois.

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Frequently Asked Questions

How many mountain bike trails are available in Entre-Deux-Monts?

Entre-Deux-Monts offers over 120 mountain bike trails, catering to various skill levels. You'll find a diverse range of routes, from easy lakeside paths to more challenging forested climbs.

Are there mountain bike trails suitable for families in Entre-Deux-Monts?

Yes, Entre-Deux-Monts has 14 easy mountain bike trails that are generally suitable for families. These routes often feature gentler terrain and scenic views, allowing for a pleasant outing with children. Look for trails with lower elevation changes and shorter distances.

What kind of terrain can I expect on mountain bike trails in Entre-Deux-Monts?

The terrain in Entre-Deux-Monts is quite varied, characterized by a mix of dense forests, clear lakes like Lac de Narlay and Grand Maclu Lake, and repurposed old railway lines. You can expect everything from smooth lakeside paths to more technical sections with climbs and descents through wooded areas. A unique feature is the Tramjurasienne, which includes tunnel sections.

Are there any advanced mountain biking options in Entre-Deux-Monts?

Yes, for experienced riders, Entre-Deux-Monts offers 40 difficult mountain bike trails. These routes typically feature significant elevation changes and more technical sections. An example of a challenging route is Shore of Lac de Narlay – Grand Maclu Lake loop from Chaux-des-Crotenay, which covers 20.9 km with over 240 meters of ascent.

What are some scenic highlights or attractions I can see along the mountain bike trails?

Many mountain bike trails in Entre-Deux-Monts incorporate natural attractions. You can often find routes that pass by the beautiful Lac de Narlay and Grand Maclu Lake. Additionally, the region is known for its gorges and waterfalls. Consider exploring routes near the Langouette Gorges, Bief de la Ruine Waterfalls, or the impressive Hérisson Waterfalls.

Are there circular mountain bike routes available in Entre-Deux-Monts?

Yes, many of the mountain bike trails in Entre-Deux-Monts are designed as circular routes, allowing you to start and finish at the same point. For instance, the Tunnel de 180 m de long sur la Tramjurasienne editorial name for French users – The ghost tunnel! loop from Chaux-des-Crotenay is a popular moderate circular trail that includes a unique tunnel section.

What is the best season for mountain biking in Entre-Deux-Monts?

The best season for mountain biking in Entre-Deux-Monts is typically from spring through autumn. During these months, the weather is generally more favorable, and the trails are less likely to be affected by snow or heavy mud, offering optimal riding conditions and vibrant natural scenery.

How long do mountain bike trails in Entre-Deux-Monts typically take to complete?

Trail durations vary significantly based on distance, difficulty, and your pace. Shorter, easier trails might take around an hour, while longer, more challenging routes can take several hours. For example, the The ghost tunnel! – Shore of Lac de Narlay loop from La Chaumusse - Fort-du-Plasne is a difficult 65.5 km trail that typically takes nearly 5 hours to complete.

What do other mountain bikers enjoy most about the trails in Entre-Deux-Monts?

The mountain bike trails in Entre-Deux-Monts are highly rated by the komoot community, with an average score of 4.5 stars from over 290 reviews. Riders often praise the diverse landscape, the unique experience of riding through old railway tunnels, and the beautiful lakeside sections that offer stunning views.

Are there mountain bike trails accessible by public transport in Entre-Deux-Monts?

While many trails start from villages that may have limited public transport connections, it's advisable to check local bus or train schedules for specific starting points. Some routes, like the Tunnel de 180 m de long sur la Tramjurasienne editorial name for French users – The ghost tunnel! loop from Foncine-le-Bas, begin in Foncine-le-Bas, which might offer more accessible options.

What should I bring for a mountain bike ride in Entre-Deux-Monts?

When mountain biking in Entre-Deux-Monts, it's essential to bring appropriate gear. This includes a well-maintained mountain bike, a helmet, water, snacks, a repair kit, and navigation tools. Given the varied terrain and potential for forested sections, consider bringing layers of clothing and checking the weather forecast before you head out.

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