4.3
(285)
1,309
hikers
65
hikes
Hiking around Lomont-Sur-Crête offers diverse landscapes, including prominent ridges, deep valleys, and significant natural water features. The region is characterized by its "crêtes" (ridges) that provide panoramic views, particularly over the Doubs river and its valley. Trails often explore the picturesque Val du Cusancin, known for its vibrant blue and green hues, and weave through extensive forests and meadows. This varied terrain provides a range of outdoor experiences for hikers.
Last updated: July 6, 2026
3.0
(16)
32
hikers
7.61km
02:21
270m
270m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(14)
87
hikers
19.4km
05:53
640m
630m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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3.7
(3)
15
hikers
4.27km
01:18
130m
130m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.0
(6)
18
hikers
2.22km
00:37
50m
50m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.0
(3)
14
hikers
5.21km
01:39
200m
200m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Please note, this hike was done in May 2025, and the very last section was inaccessible. We were unable to reach the source of the Cusancin River; fallen trees and overgrown vegetation made the path impossible to find. We had to turn around and return to the starting point by road (barely a hundred meters of asphalt).
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Built on the foundations of a 12th century feudal castle, the chapel dominates the hamlet of Val-de-Cusance. It was built in 1880 and bears the name of Saint-Ermenfroi, who had built an abbey intended to accommodate the sick and foreigners in the 7th century. The chapel is the ideal place to enjoy a beautiful panorama of the valley, with greenery as far as the eye can see.
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The green spring or the Cuse is located on the left side of the river at approximately the same height as the blue spring. This is the true source of Cusancin. The upper gallery of the cave was walled with dry stones.
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The blue spring is a Vauclusian spring which emerges in an oval basin. Its depth is nine meters. Divers explored the submerged gallery over a length of 220 meters before stumbling upon a narrowing which was not crossed. The gallery is made up of two siphons. The turquoise blue waters give it its name.
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It is one of the two sources that feed the Cusancin, a river also known as “the Cuse”. It is greener than the blue of the Cove which is called the Blue Source. This is on the other side of the road. The Cuse and the Anse join and lend their name to the neighboring village: Cusance.
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As the name suggests, this water is crystal clear sea blue. Is it worth visiting and maybe taking a dip?
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There are over 60 hiking trails around Lomont-Sur-Crête, offering a wide variety of options for different skill levels and preferences. You'll find everything from easy strolls to more challenging ascents.
Yes, Lomont-Sur-Crête offers numerous easy hiking trails. Over 30 routes are classified as easy, perfect for beginners or families looking for a relaxed walk. A great option is the Cusancin spring – Saint-Erminfroid Chapel loop from Cusance, which is just over 4 km long.
Lomont-Sur-Crête is known for its diverse landscapes. You'll encounter dramatic ridge-top paths offering panoramic views, particularly over the Doubs river and its valley. The picturesque Val du Cusancin, with its vibrant blue and green hues, is another highlight, along with extensive forests and serene meadows.
Yes, many trails in Lomont-Sur-Crête are circular, allowing you to start and end at the same point. For example, the popular Val de Cusance Loop is a moderate 7.6 km circular route that explores the scenic valley.
The region is rich in natural beauty and interesting landmarks. You can explore the stunning La Source bleue, a natural spring, or visit viewpoints like Saut de Gamache Viewpoint and Roche de Chatard Viewpoint for spectacular vistas. Some trails also pass by intriguing caves such as Grotte Sous Buen.
Hike durations vary significantly depending on the trail's length and difficulty. Easy walks like the The Blue Spring – Saint-Erminfroid Chapel loop from Cusance can be completed in under an hour. Moderate routes, such as The Green Spring – Croix de Saint Erminfroi loop from Cusance, typically take around 3.5 hours, while more challenging trails can extend to 6 hours or more.
Absolutely. For experienced hikers seeking a challenge, there are 8 difficult routes available. The Saint-Erminfroid Chapel – The Blue Spring loop from Guillon-les-Bains is a demanding 19.5 km trail with significant elevation gain, offering a rewarding experience.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 200 reviews. Hikers often praise the dramatic ridge-top paths, the beauty of the Val du Cusancin, and the impressive Doubs river valley, highlighting the diverse natural settings and well-maintained trails.
Lomont-Sur-Crête offers hiking opportunities throughout much of the year. Spring and autumn provide pleasant temperatures and beautiful foliage, while summer is ideal for enjoying the lush green landscapes. Even in winter, some trails can be explored, though conditions may require appropriate gear.
Generally, dogs are welcome on many hiking trails in the region, especially if kept on a leash. However, it's always advisable to check specific trail regulations or local signage, particularly in nature reserves or protected areas, to ensure a pleasant experience for everyone.
Yes, the 'crêtes' (ridges) that define Lomont-Sur-Crête are renowned for their spectacular viewpoints. Trails along these crests, such as those above Baume-les-Dames, provide magnificent vistas of the Doubs river and its valley. Specific spots like the Roche de Chatard Viewpoint are highly recommended for expansive views.


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