Races›La Traversée
Saturday 25 September 2027 · Tramelan
La Traversée
The route of L’Essentielle, without the climb to Chasseral. The ridges and the Mont-Crosin wind farm, a steep descent to Villeret, then a path along the river to Cortébert, for 1,245 m of elevation gain.
The course
What awaits you
You'll pass through
La Traversée largely follows the route of L'Essentielle, without the climb to Chasseral.
You first climb onto the ridge, then you cross the Mont-Crosin wind farm before a steep descent to Villeret and the first refreshment stop.
A rolling trail then follows the river for a while, perfect for getting the engine going again all the way to Cortébert.
From there, a sharp climb takes you back up to the ridge, then you head down to Tramelan and the finish line.
Practical
Before the start
Start
09:00
Saturday, September 25, 2027, behind the Marelle hall, in Tramelan.
Bibs and briefing
07:30
Collection until 8:45 am at the Marelle room, with your ID. Briefing at 8:50 am.
Time limit
7 hrs
Finish by 16:00 at the latest. Cut-off times are in the split times table.
2027 entries
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Get notified →Mandatory kit
- Your own cupThere are no cups at the aid stations.
- Your poles, if you bring themYou keep them until the finish.
Recommended kit
- Backpack
- Water supply, at least 1 litre
- Waterproof jacket for bad mountain weather
- Second layer (long sleeves or arm sleeves)
- Small food supply (bars, gels)
- Mobile phone
The races
The other courses

66.5 km · 3'129 m D+
La Grandiose
The longest route of the Trail du Jura bernois. Start with headlamps, passing through Chasseral and the Combe-Grède.
- Distance
- 66.5 km
- Elevation gain
- 3'129 m
- Start
- 06:00
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45 km · 2'065 m D+
L'Essentielle
The most beautiful sites of the Bernese Jura within 45 km. The Mont-Crosin wind farm, the Combe-Grède and Chasseral.
- Distance
- 45 km
- Elevation gain
- 2'065 m
- Start
- 08:00
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13.5 km · 631 m D+
La Découverte
Open to everyone, the course to get into trail running. Short but punchy.
- Distance
- 13.5 km
- Elevation gain
- 631 m
- Start
- 10:00
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