4.2
(91)
357
riders
60
rides
Mountain bike trails around Éternoz are set within the Jura Mountains, characterized by diverse and dramatic natural landscapes. The region features the Lison Valley with its meandering river and gorges, alongside numerous waterfalls and unique karst formations. Mountain bikers can expect a mix of forest tracks, technical singletracks, and paths traversing varied terrain, including limestone geology and dense woodlands. Elevated viewpoints offer expansive vistas across the valleys.
Last updated: October 9, 2026
3.8
(4)
6
riders
37.7km
02:54
580m
580m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
10
riders
27.8km
02:20
450m
440m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

4
riders
25.3km
02:16
470m
470m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4
riders
20.8km
01:47
380m
380m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
1
riders
22.9km
01:54
400m
390m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
Get access to more routes and recommendations from other explorers.
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
The village of Nans-sous-Sainte-Anne is remarkable for the scale of its landscapes, the rhythm of the mountains and depressions. It knows how to combine in a restricted space the charm of the foliage and the fir trees with the austerity of the rock walls, the impetuosity of the waterfalls with the intimacy of the undergrowth, the mystery of the caves with the picturesqueness of the belvederes.
1
0
Magnificent spot, I recommend!
0
0
The painter Gustave Courbet has already painted this waterfall. https://www.bourgognefranchecomte.com/lacs-et-cascades/gour-de-conche Located in the middle of the forest, the Todor stream plunges 17 meters into the depths.
0
0
Failing to visit, since it is private, the Château de Cléron can be admired from the heights of Cléron, but also from its gardens. This medieval castle has been restored and offers observers a keep, machicolations, loopholes and stunners in excellent condition.
2
0
This castle was built in 1320 by Humbert de Cléron, vassal of the Count of Burgundy, to protect the Loue ford on the great salt road of Franche-Comté. Modified and enlarged in the 15th and 18th centuries, the castle still retains its medieval defenses. Open Tuesday to Sunday from 2:30 p.m. to 6 p.m. (from 01/07 to 31/08, garden only, interior cannot be visited). Ticket price - 3 euros.
2
0
Crossed by the Lison and its tributaries Nans-sous-Sainte-Anne is a pleasant village in which to take a break. From the 13th century, it was one of the first stops on the 'salt route' for convoys transporting salt from Salins Les Salines to Switzerland via the Jura passes. The bridge over the Lison was also the perfect place to collect the gabelle, the famous tax on salt in the Middle Ages.
1
1
Chateau very well preserved, inhabited and a part can be visited. Located on the banks of the Loue and magnificent from the D103 road, which goes up from Cléron to Amondans (4 km at 5%).
0
0
There are over 50 mountain bike trails around Éternoz, offering a wide range of options for different skill levels. The majority, 45 routes, are rated as moderate, with 5 easy and 6 difficult trails also available.
Mountain biking in Éternoz offers a diverse and dramatic landscape. You can expect a mix of forest tracks, technical singletracks, and paths traversing varied terrain, including the wild Lison Valley with its gorges, limestone geology, and dense woodlands. The region is characterized by undulating landscapes, from riverside routes to climbs along valley sides.
Yes, there are 5 mountain bike trails specifically rated as easy around Éternoz, perfect for beginners or those looking for a more relaxed ride. These trails allow you to enjoy the scenic beauty without overly challenging technical sections.
Absolutely. The Éternoz area is rich in stunning hydrological features. Many trails explore the Lison Valley, where you can encounter the powerful Lison Spring and the beautiful Verneau Spring. For example, the Lison Waterfalls – Lison Spring loop from Amondans is a popular route that explores these natural wonders.
Yes, most of the mountain bike routes around Éternoz are designed as loops, allowing you to start and finish at the same point. Examples include the Lison Valley – Lison Waterfalls loop from Refranche and the Lison Waterfalls – Lison Valley loop from Alaise.
Beyond the waterfalls, the region boasts unique karst formations. You might encounter the impressive Sarrazine Cave, a 'wild cathedral' carved into limestone, or the Creux Billard, a karst cauldron with its own waterfall and underground cave system. Keep an eye out for 'Les Chandeliers,' enormous blocks of varied limestone formations along a wooded cornice overlooking the Lison Valley.
Yes, the Jura Mountains around Éternoz offer numerous panoramic viewpoints that reward your climbing efforts. The Belvédère des Feuilles provides stunning views of the Lison Valley's meanders, while the Belvédère du Vieux Château offers extensive vistas. These elevated points are perfect for taking breaks and appreciating the expansive natural scenery.
The area is highly rated by the komoot community, with an average score of 4.2 stars from over 60 reviews. Mountain bikers often praise the diverse terrain, the stunning natural beauty of the Lison Valley, and the rewarding views from various viewpoints.
The trails vary significantly. For instance, a moderate route like the Lison Valley – Lison Waterfalls loop from Refranche is about 13.8 miles (22.2 km) with around 367 meters of elevation gain. Longer, more challenging routes, such as the Lison Valley – Lison Waterfalls loop from Crouzet-Migette, can be up to 35.6 km with over 700 meters of elevation gain.
While specific seasonal details for Éternoz are not provided, the Jura Mountains generally offer good conditions from spring through autumn. Spring brings lush greenery and flowing waterfalls, while autumn showcases vibrant forest colors. Winter conditions can introduce snow and ice, making some trails impassable or requiring specialized equipment.
Yes, you can incorporate historical elements into your ride. For example, Cléron Castle is a notable historical site in the vicinity that could be a point of interest on a longer route.


Browse the best MTB trails in other regions.