4.5
(290)
1,621
hikers
86
hikes
Hiking around Saint-Martin-Lès-Langres offers access to diverse landscapes in the Haute-Marne department of France. The region is characterized by hillsides providing views of the Mouche Valley and Lac de la Mouche. Extensive forests and varied vegetation surround the lake, contributing to the area's natural appeal. Proximity to the historic city of Langres also provides opportunities for exploring ancient ramparts.
Last updated: July 2, 2026
4.6
(24)
142
hikers
6.72km
01:45
40m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
2
hikers
17.6km
04:42
190m
190m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(5)
12
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(3)
6
hikers
15.7km
04:14
190m
190m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(2)
6
hikers
3.59km
00:59
50m
50m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Wash house from 1901 with a cast-iron lion's head as a spout. This bronze lion's head, frequently used in the region, is intended to protect the spring water.
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Kirche St. Vailler, rebuilt in the 19th century.
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The Diamond Point Fort is a 19th century fortification which was part of the city's defensive system. The fort is located on a hill overlooking the Mouche and Bonnelle valleys, offering panoramic views of the countryside. You can explore the casemates, barracks, powder magazine and ramparts of the fort, and learn about its history and role in the Franco-Prussian War and the First World War. The fort also hosts various events and activities throughout the year, such as concerts, markets and festivals.
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Lac de la Mouche is surrounded by forests and villages where you can admire views of the water and wildlife, as well as the impressive semi-viaduct dam that holds back the lake. The trail is easy and well marked, and you can access it all year round.
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Pointe de Diamant Fort is a 19th century fortification which was part of the city's defensive system. The fort is located on a hill overlooking the Mouche and Bonnelle valleys, offering panoramic views of the countryside. You can explore the casemates, barracks, powder magazine and ramparts of the fort, and discover its history and its role in the Franco-Prussian War and the First World War. The fort also hosts various events and activities throughout the year, such as concerts, markets and festivals. The fort is open to visitors from April to October. Diamond Point Fort is an excellent destination for hikers interested in history, culture and nature.
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This natural wonder is the Tufière de Saint-Ciergues. It is a small tuff formation that is created by the deposition of limestone on moss, forming a series of small waterfalls. Tuff is a porous stone which gives its name to the site. You can enjoy the view of the tuff and the surrounding forest, but be careful not to step on it, because it is very fragile and must be preserved.
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There are over 80 hiking trails around Saint-Martin-Lès-Langres, offering a wide variety of options for different skill levels and preferences. You'll find everything from easy lakeside strolls to more challenging routes through forests and hillsides.
The terrain around Saint-Martin-Lès-Langres is quite varied. You can expect peaceful paths around the tranquil Lac de la Mouche, shaded sections through forests, and hillside trails offering expansive views of the Mouche Valley. Some routes may include small footbridges and clearings, with minimal elevation gain on easier loops, while longer trails can feature more varied and challenging ascents.
The hiking trails in Saint-Martin-Lès-Langres are highly rated by the komoot community, with an average score of 4.5 stars from over 250 reviews. Hikers often praise the serene lakeside environments, the diverse forest trails, and the scenic viewpoints, highlighting the area's natural beauty and peaceful atmosphere.
Yes, Saint-Martin-Lès-Langres offers numerous easy hiking options perfect for beginners and families. For instance, the Tour du Lac de la Mouche is an easy 4.2-mile (6.7 km) loop with minimal elevation gain, taking about 1 hour 45 minutes to complete. This peaceful circuit is ideal for a relaxed outing.
Absolutely. For those seeking a greater challenge, there are several moderate to difficult routes. The Place de la Fontaine – Lac de la Mouche loop from Perrancey-les-Vieux-Moulins is a difficult 11.7-mile (18.8 km) trail that leads through the surrounding countryside, often completed in about 5 hours. Another option is the moderate Fort de la pointe de Diamant — loop from Humes, which covers 10.9 miles (17.6 km) with varied terrain.
Yes, the region is rich in natural beauty. The most prominent feature is the tranquil Lac de la Mouche, known for its peaceful waters and surrounding forests. You might also encounter specific vegetation, including rare and protected species, in the enclosed valley around the lake. The area also offers hillside views of the Mouche Valley and the dam's arches.
Yes, circular routes are a highlight of hiking in this area. The popular Tour du Lac de la Mouche is a prime example, offering a peaceful loop around the lake. Other options include the Fort de la pointe de Diamant — loop from Humes and the Place de la Fontaine – Lac de la Mouche loop from Perrancey-les-Vieux-Moulins, both providing excellent circular experiences.
Just 6 kilometers from Saint-Martin-Lès-Langres is the historic city of Langres. Here, you can explore its ancient ramparts, which offer an easy 4.7-kilometer (2.9-mile) loop hike with panoramic views. Within Langres, you can also visit the impressive Saint-Mammès Cathedral of Langres and historical gates like the Porte des Terreaux.
Yes, parking is generally available near popular trailheads, especially around Lac de la Mouche. For example, the easy loop around Lac de la Mouche can be started from Saint-Ciergues, where parking facilities are typically accessible. It's always a good idea to check specific route details for precise parking information.
Many trails in the Saint-Martin-Lès-Langres area are suitable for dogs, especially the more natural and forested paths. The peaceful circuit around Lac de la Mouche is a popular choice for dog walkers. However, it's always recommended to keep dogs on a leash, especially in areas with wildlife or near livestock, and to check local regulations for specific trails.
The area is beautiful throughout the year, but spring and autumn offer particularly pleasant conditions for hiking with mild temperatures and vibrant scenery. Spring brings lush greenery and blooming flora, while autumn showcases stunning fall colors in the forests. Summer is also popular, especially around Lac de la Mouche, but can be warmer. Winter hiking is possible, offering a different, serene experience, though some paths might be muddy or icy.
Yes, particularly around Lac de la Mouche, you'll find designated picnic areas where you can take a break and enjoy the scenery. The easy loop around the lake is known for having such spots, making it convenient for longer outings or family hikes.


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