4.3
(1043)
7,100
riders
243
rides
Mountain bike trails Lac de Longemer are situated in the Vosges mountains of France, surrounding a glacial lake at an elevation of 736 meters. The region is characterized by dense pine forests, diverse terrain, and the Vologne River feeding the lake. This area offers a variety of routes through wooded and mountainous landscapes, including access to other glacial lakes like Lac de Retournemer and natural features such as peat bogs.
Last updated: June 21, 2026
4.6
(24)
110
riders
19.9km
01:30
250m
250m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.8
(16)
96
riders
31.7km
02:23
670m
670m
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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4.3
(16)
51
riders
38.7km
03:22
890m
900m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.7
(6)
44
riders
42.2km
03:41
990m
990m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.2
(14)
57
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Nice place to sit on the benches. And there is a snack bar and a (dirty) toilet building
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From here, you have a truly magnificent view and can reward yourself with a light meal at the summit restaurant. Unfortunately, the hotel at the summit is currently closed. (For about a year.) As of September 2025
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Looks like a reservoir. Not as nice as Blanchemer. Still nice enough.
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The paved road leading up to the start of the route. You can also take an extra loop at the photo. This is also where one of the most beautiful descents between Xonrupt and La Bresse ends.
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The smaller of the two adjacent lakes. I mean, also the more beautiful one!
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⚠️ There is only one major road (currently closed for construction for part of the length in June 2025), with no sidewalks or protected pedestrian areas. Currently not a problem due to the closure, but would not recommend this route to runners if the road were to reopen.
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The initial tidal wave was reportedly up to 40 meters high and traveling at speeds of 70 km/h. It first reached the hamlets of Malpasset and Bozon, which were completely destroyed. About 20 minutes after the wall broke, it reached Fréjus, where the wave was still three meters high and buried large parts of the town in mud.
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The dam wall collapsed suddenly and completely on the night of December 2, 1959, at 9:13 p.m. The exact time of the collapse could be reconstructed because it is known when the power was cut off by the flood wave. The wall was almost completely eroded by the force of the water. Only a few sections of the wall on the right bank (as seen in the direction of flow) remained standing. Fragments of the wall, some the size of a house, lie scattered over a distance of several hundred meters downstream.
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The Lac de Longemer area offers a wide range of mountain bike trails, with over 230 routes available. These cater to various skill levels, including approximately 27 easy trails, 91 moderate trails, and 117 difficult trails, ensuring options for beginners to advanced riders.
Yes, for families and beginners, there are easier routes available. A notable option is the "Wonderful view – Lake Longemer loop from Xonrupt-Longemer", which is an easy 6.88 km ride with minimal elevation gain, making it suitable for all skill levels. The region's diverse terrain includes forest roads that are generally less technical.
Mountain biking around Lac de Longemer offers stunning natural features. You'll ride through dense pine forests, along the shores of the glacial Lake Longemer, and experience the dramatic backdrop of the Vosges mountains. Many routes also pass by other glacial lakes like Lac de Retournemer and unique landscapes such as the Machais peat bog and Lac du Lispach, often described as reminiscent of Canadian scenery.
Absolutely. Many trails in the region provide spectacular views. For instance, the Lac de Retournemer – View from the Hohneck loop from Xonrupt-Longemer is a challenging route that rewards riders with panoramic vistas from the Hohneck area. You can also find viewpoints like the View of Lake Longemer at the mouth of the Vologne River.
Experienced riders seeking a challenge will find plenty of difficult routes. The Lake Longemer – Lispach Lake and the peat bog loop from Xonrupt-Longemer is a demanding 79.3 km ride with 2,000m of elevation gain, requiring very good fitness. The region also features technical singletracks and challenging downhill sections, including the "Biggest Vosges DH" trail which is over 8 kilometers long.
Yes, many mountain bike routes around Lac de Longemer are designed as loops, allowing you to start and finish in the same location. Examples include the View of Lake Longemer – Le Haut Gazon loop from Xonrupt-Longemer and the View of the Lake – Steep descent loop from Lac de Longemer, offering varied distances and difficulties.
The best time for mountain biking in Lac de Longemer is generally from spring through autumn. During these seasons, the weather is more favorable, and trails are typically free of snow and ice, offering better riding conditions. The vibrant colors of spring and autumn foliage also enhance the scenic beauty of the Vosges mountains.
Yes, the region is bike-friendly. Some camping facilities, such as Camping Domaine de Longemer, are "Accueil Vélo" labeled. This means they provide services specifically for cyclists, including washing platforms, workshop spaces, secure bike storage, and charging stations for e-bikes.
The mountain bike trails around Lac de Longemer are highly regarded by the komoot community, with an average rating of 4.4 stars from over 1200 reviews. Riders often praise the diverse terrain, the stunning natural beauty of the glacial lakes and pine forests, and the variety of routes suitable for different skill levels.
Beyond mountain biking, the area offers several attractions. You can visit the historic Saint-Florent Chapel on the lake, relax at Pré des Feignes Beach, or explore the "Pearls of Vologne" site with its shaded banks and the Pont des Fées. The region is also popular for hiking, water sports like swimming and kayaking on Lake Longemer, and fishing.
Absolutely. Lac de Longemer is part of the Vallée des Lacs (Valley of Lakes), which includes Lac de Gérardmer and Lac de Retournemer. Many mountain bike routes are designed to connect these beautiful glacial lakes, allowing you to experience the unique charm of each. For example, the Lac de Retournemer – View from the Hohneck loop from Xonrupt-Longemer takes you past Lac de Retournemer.


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