4.6
(41)
193
riders
52
rides
Mountain bike trails around Barrage De La Mouche are situated in a region characterized by its prominent reservoir, Lac de la Mouche, and the nearby Lac de la Liez. The landscape features rolling hills, dense woodlands, and open areas surrounding these bodies of water. Terrain varies from lakeside paths to routes traversing the local countryside, offering diverse conditions for mountain biking.
Last updated: July 2, 2026
5.0
(2)
4
riders
40.3km
02:44
410m
410m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.5
(2)
5
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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5.0
(3)
18
riders
36.9km
02:23
140m
140m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.8
(15)
82
riders
34.6km
02:39
350m
350m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
8
riders
39.0km
02:33
380m
380m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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A real steep climb and a beautiful cliff face!
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Until the mid-19th century, the remains of a Gallo-Roman arch, which marked the northern city limit, were still visible. After being integrated into the fortifications at the end of the 3rd century and becoming a city gate, this structure owes its name either to its length or to a legendary king named Longo, whose effigy was mounted on a corbel overlooking the city. Around 1538, a barbican was built in front of the gate to prevent a frontal assault.
2
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Beautiful running route along the historic fortress wall.
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This powder magazine was built starting in 1842, at the same time as the Langres Citadel. Buried beneath an embankment, it features a 7-meter-high storage chamber containing the barrels of black powder, as well as a surrounding ventilation gallery. Between the two are vents and lighting niches (torches were placed here, separated from the chamber by a glass pane to prevent the powder from igniting). Unfortunately, the building is only open to visitors very occasionally (during Heritage Days, for example).
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This gate owes its name to the old mills located outside the fortifications to harness the wind (the "Bel'air," which gave the square its name). It is part of the bastion fortifications built south of the city walls between 1642 and 1647.
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A beautiful local recreation area for hiking, swimming, and other recreational activities. The path around the lake is more suitable for hiking than cycling. We still managed it, though.
1
0
A very beautiful circular route around Lac de la Liez, whether on foot or by bike.
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The Porte des Moulins is one of the impressive city gates and dates back to the 17th century. It was once the main entrance to the fortified city and is now a listed monument. The fortifications stretch over 3.5 kilometers with seven gates and twelve towers. From the city walls, you can enjoy spectacular panoramic views of the region.
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The mountain bike trails around Barrage De La Mouche offer a range of difficulties. You'll find a good mix of easy and moderate routes, with 17 easy trails and 35 moderate trails available. There are no trails classified as difficult in this area, making it accessible for various skill levels.
Yes, there are several trails suitable for beginners. For example, the Tufière de Saint-Ciergues – Tufière de Saint-Ciergues loop from Saint-Ciergues is an easy 15.2-mile (24.4 km) path that explores unique tufa formations and natural scenery, perfect for those new to mountain biking.
While there are no trails explicitly graded as 'difficult,' experienced riders can find longer, more demanding moderate routes. Trails like the Lac de la Liez peninsula – Lake Liez loop from Perrancey-les-Vieux-Moulins, at 25.7 miles (41.3 km) with significant elevation changes, offer a good challenge and take around 3 hours 15 minutes to complete.
The trails around Barrage De La Mouche vary in length. You can find routes ranging from shorter, easy paths like the 15.2-mile (24.4 km) Tufière de Saint-Ciergues loop, to longer excursions such as the 25.7-mile (41.3 km) Lac de la Liez peninsula loop, and even routes up to 48.1 km like the Tufière de Saint-Ciergues – Lake Mouche loop from Langres.
Many trails originate from villages and towns surrounding the reservoirs. For instance, routes often start from Perrancey-les-Vieux-Moulins, Saint-Ciergues, or the larger town of Langres, providing convenient access points to the trail network.
Yes, the region offers several easy trails that are suitable for families. These routes often feature less challenging terrain and provide a pleasant way to explore the lakeside paths and woodlands together. Look for trails marked as 'easy' on komoot for the best family options.
The best time to go mountain biking is generally from spring through autumn (April to October) when the weather is mild and the trails are dry. Spring brings blooming nature, while autumn offers beautiful foliage. Summer is also popular, but be prepared for warmer temperatures.
Mountain biking in winter is possible, but conditions can be challenging. Trails may be muddy, icy, or covered in snow, especially after rainfall or cold snaps. It's advisable to check local weather conditions and trail reports before heading out and to use appropriate gear for winter riding.
Yes, many of the mountain bike trails around Barrage De La Mouche are designed as circular routes, allowing you to start and end at the same point. Examples include the popular La Mouche Dam – Lac de la Liez loop from Perrancey-les-Vieux-Moulins and the Saint-Geosmes Village Center – Pontoon View of Lac du Bouchot loop from Langres.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 40 reviews. Reviewers often praise the diverse terrain, the extensive views of both Barrage De La Mouche and Lac de la Liez, and the varied forest trails and open countryside that define the region's riding experience.
You can expect diverse scenery characterized by the prominent Lac de la Mouche and Lac de la Liez. Trails often feature extensive reservoir views, dense woodlands, and open countryside. Some routes, like the Tufière de Saint-Ciergues loop, also explore areas known for unique natural formations.


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