4.7
(18)
46
riders
19
rides
Gravel biking around Fort-Du-Plasne offers a diverse landscape characterized by numerous lakes, dense forests, and varied terrain within the Jura Mountains. The region features a mix of mid-altitude peaks, vast plateaus, and deep valleys, providing an ideal environment for gravel cyclists. Natural surfaces range from forest tracks to scenic routes connecting small villages, with options for both gentle lakeside paths and more challenging ascents. This area, spanning the French-Swiss border, is known for its extensive network of gravel bike trails…
Last updated: May 22, 2026
5.0
(1)
4
riders
74.6km
05:22
1,390m
1,390m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(3)
12
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.8
(4)
13
riders
47.9km
03:22
860m
860m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.2
(6)
7
riders
10.6km
00:35
100m
100m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.8
(4)
5
riders
22.3km
01:31
330m
330m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Now part of the Collection https://www.komoot.com/de-de/collection/3600632/-naturdenkmaeler-besondere-baeume-und-weitere-schaetze-der-natur
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Cool passage, definitely take a lamp.
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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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Boat mooring with wooden dock for fishing boats at Lac de Narlay.
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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.
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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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Don't miss this beautiful view at Roche Bernard
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The Fort-Du-Plasne region offers a diverse mix of gravel biking terrain. You'll find everything from gentle lakeside paths around Lac de Narlay and Grand Maclu Lake to more challenging ascents through the Jura mountains. The routes often feature natural surfaces like forest tracks and scenic paths connecting small villages.
Yes, there are several easier options. For a relatively flat and scenic ride, consider the Grand Maclu Lake – Shore of Lac de Narlay loop from Le Frasnois. This route is just over 10 km with minimal elevation gain, perfect for beginners or a relaxed outing.
For a more demanding ride, the Fort-Du-Plasne region has plenty to offer. The Chapelle-des-Bois – Chapelle-des-Bois loop from Gare de Saint-Laurent-en-Grandvaux is a difficult 74 km path with significant elevation gain through forested areas, ideal for experienced gravel bikers seeking a challenge.
For families, routes with less elevation and scenic views are often preferred. The paths around the lakes, such as parts of the Shore of Lac de Narlay – Grand Maclu Lake loop from La Chaux-du-Dombief, offer relatively gentle terrain and beautiful scenery suitable for a family outing. Always check the route details for specific difficulty and length.
The region is rich in natural beauty. Many routes offer views of the pristine lakes like Lac de Narlay and Grand Maclu Lake. You can also find stunning natural attractions such as the Pic de l'Aigle for panoramic vistas, and several waterfalls like Le Grand Saut, Fan Waterfall, and Saut Girard Waterfall. The Langouette Gorges also offer dramatic scenery.
Yes, many of the gravel bike routes in Fort-Du-Plasne are designed as loops, allowing you to start and finish at the same point. Examples include the Shore of Lac de Narlay – View of Lac de Narlay loop from La Chaux-du-Dombief, which takes you through scenic lakeside and forest terrain, and the The ghost tunnel! – Shore of Lac de Narlay loop from La Chaux-des-Crotenay.
The gravel biking routes in Fort-Du-Plasne are highly rated by the komoot community, with an average score of 4.8 stars. Reviewers often praise the pristine lakes, dense forests, and rolling hills that define the region, as well as the variety of options available for different ability levels.
The best time for gravel biking in Fort-Du-Plasne is typically from spring through autumn (May to October). During these months, the weather is generally milder, and the trails are more accessible. Summer offers warmer temperatures, while spring and autumn provide beautiful foliage and fewer crowds.
Yes, some routes offer unique points of interest. For example, the The ghost tunnel! – Shore of Lac de Narlay loop from La Chaux-des-Crotenay hints at an intriguing feature along its path, providing a blend of natural beauty and local history.
Absolutely. Many routes fall within or close to the 30km range, offering a good balance of distance and exploration. The Shore of Lac de Narlay – View of Lac de Narlay loop from La Chaux-du-Dombief is approximately 38.8 km, providing a substantial ride without being overly long, and can be adjusted for a shorter distance if needed.
While specific pub stops are not detailed for every route, many trails connect or pass through small villages in the Fort-Du-Plasne area. These villages often have local establishments where you can refuel and rest. It's advisable to check the map for villages along your chosen route and research local amenities beforehand.


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