The Transju Trail in the Jura Mountains

The 42 km Trail

2,200 meters of elevation gain
Date
Departure time
Place of departure

Morbier

Place of arrival

Les Rousses

50 km UTMB Transju Trails Itra Transju Trails 40km

Rates
until 03/29/2026 (-33%) 50€
from 03/30/2026 to 04/26/2026 (-20%) 60€
from 04/27/2026 to 05/29/2026 65€
from 05/30/2026 to 06/06/2026 subject to availability of places 75€
Shuttle option (to get to the start) 5€
Pack 1 race on Saturday + 5km on Sunday -10% off total
Group rate between 10 and 14 participants an additional -10% per subscriber
Group rate 15 participants and more -15% additional discount per subscriber
To benefit from the group rate please send an e-mail to contact@latransju.com
Combo 42 km + 25 km (price changes according to above dates) 70€ - 84€ - 91€ - 105€
Sign up

Discover the 42-km course with 2,200 meters of elevation gain—a challenging and varied route in theheart of the Jura Mountains.

You’ll cross the Bienne River via a spectacular suspension bridge at Trou Bleu, an iconic natural site with deep, mysterious waters. The trail then climbs toward the lookouts overlooking Morez, offering superb panoramic views of the valley, before reaching the village of Prémanon.

Finally, you'll finish on a high note with an ascent of La Dôle, the second highest peak in the Jura, offering a unique panorama of Lake Geneva and the Mont-Blanc chain. This route alternates technical sections, forest singles and remarkable viewpoints for a total immersion in the Jura landscapes.

Trace GPX

GPX track to download

We would be grateful if you would refrain from using these private passageways, so as to ensure the continuity of our routes and agreements.

On the day of the event, always follow the course markers, not your watch.

Practical information
  • Distance : 42 km
  • Start: Morbier (stade des marais) at 11:00 a.m.
  • Arrival : Les Rousses
  • Elevation gain: 2,200 m
Withdraw my number

Numbers can be collected at the trail show in Les ROUSSES .

Friday, June 5: 2 to 8 p.m.

A MORBIER: 

Saturday, June 6: 9 to 11 a.m.

We advise you to come well in advance for the collection of the numbers in order to be sure to take the start.

You must bring the following documents with you:

  • Your official, valid identification document
  • Proof of registration
  • Your license or medical certificate if not validated beforehand

The number will be accompanied by a timing chip. Participants must take care not to damage it. To do so, the number must be fixed without being folded on the chest or the belly and remain visible throughout the race. In case of damage to the number or the chip, preventing its detection, the participant will not be able to make a claim. The organizer will not be held responsible.

Another person may pick up the race bib, provided they present the same documents required for in-person pickup: the participant’s ID (photo ID accepted), proof of registration (PPS or medical certificate if not validated).

The services offered

INCLUDES

  • A runner's gift: Transju'Trails technical t-shirt
  • Showers and changing rooms
  • Massage service on arrival (physiotherapist or osteopath)
  • Transport of the changing bag from the start stadium to the finish, and its safekeeping
  • Massage service on arrival (physiotherapist or osteopath)
  • Race number (personal, guaranteed for all registrations made before May 21, 2026)
  • The timing chip and the timed classification
  • A photo of you taking part in the event courtesy of our partner Crédit Agricole Franche Comté (link to the album sent after the event)
  • Medical assistance and safety
  • Refreshments along the route and at the finish line
  • Access to a bag-free room

OPTION

  • Shuttle service
  • Cancellation insurance
  • Bodily injury insurance
  • Products from our online store
  • A traditional Franc-Comtois runner's meal (bookable when you register)
Background and profile
Carto 42km
Carto_42km

The routes are subject to change, so the routes and elevation profiles are subject to change.

Time barriers
Starting SAS

For the 42K race, starting corridors have been set up to ensure a smooth and enjoyable running experience for everyone.

  • The starting groups are determined based on the estimated finish time provided during registration and theITRA Index.
  • The SAS number is printed on the race bib and can be found in the registration packet once the bibs have been assigned.
  • The boarding gates open 30 minutes before departure time.
  • The race time starts at the departure time for your starting zone.
  • The time limits are calculated based on the departure time of the last SAS.
  • Failure to comply with the assigned starting gate will result in penalties, including disqualification.
  • No complaints may be made to the Organization regarding the assignment of starting blocks. By registering, runners agree to accept the starting block assigned to them.
  • However, a change to a later starting zone (e.g., moving from Starting Zone 1 to Starting Zone 2, or from Starting Zone 2 to Starting Zone 3) may be requested directly on-site on race day. No changes to an earlier starting zone will be permitted.

Breakdown of SAS groups (departure at 11:00 a.m.)

  • Group 1: Departure at 11:00 a.m.
  • Flight 2: Departure at 11:10 a.m.
  • Group 3: Departure at 11:20 a.m.

Departure times are subject to change depending on weather conditions and the number of participants.

The shuttles

Shuttle buses from Les Rousses (Office de Tourisme) to the start site (Morbier - stade des Marais).

These schedules can be modified by more or less 15 minutes, so we recommend you to follow the information on the website the last week before the event.

Refreshments

Our refreshment stands, carefully prepared by our volunteer teams, offer drinks and food with local products from our partners. 

Number: 3 

View the contents of the aid stations

⚠️Participants may only be assisted at refreshment points, in the area immediately adjacent to the refreshment area, and at the discretion of the station manager.

Any assistance provided outside the authorized zones will result in the application of a time penalty to the riders who received the assistance.

UTMB index and ITRA points

The Organization allocates elite race numbers according to the following criteria:

● Free elite bib:
○Men: ITRA performance index ≥ 820 points
○Women: ITRA performance index ≥ 660 points

● Elite bib insured (regardless of full races) paying:
○Men: ITRA performance index ≥ 780 points
○Women: ITRA performance index ≥ 625 points

Each event (excluding 5 & 10km & rando 15) awards Itra points and/or a rating on the UTMB Index.

Where to see the riders
Recommended and mandatory equipment

MANDATORY EQUIPMENT

  • Water reservoir with a capacity of at least 1 liter,
  • 1 survival blanket,
  • 1 warm, waterproof garment to protect you from the cold and rain,
  • 1 charged cell phone,
  • 1 individual cup.

RECOMMENDED EQUIPMENT

  • 1 Whistle,
  • 1 quick-dressing and foot-care kit.
  • Nutrition

AUTHORIZED EQUIPMENT

  • Sticks.

PROHIBITED MATERIAL

  • 2-wheeled or motorized machines.
    This equipment is forbidden for all races.
Transju' challenge by Jura Pellets

The Défi Transju' by Jura Pellets aims to reward the best male and female participant in the 3 major races of our events: La Transju', La Transju'Trails and La Transju'Cyclo.

  • All those who have participated in the three events this year will receive a10% discount on the Transju’Cyclo, regardless of the race distance chosen.
  • The fastest participant in the 3 major Transju' events will win the winners' bell (the Transjurassienne, the Ultra 110km or the Trail 82km and the Cylclo 160km).

View the rules for the Transju’ Challenge

Challenge Entreprise by Crédit Agricole

Trans'Organisation has decided to honour and promote and promote healthy sports in the workplaceby organizing a dedicated challenge: The challenge Transju' Entreprises.

It's a collective challenge for all employees of a company who wish to take part in one of the Transju''s Transju' time trials or hikes.. The aim is to share a convivial moment that develops team cohesion.

This challenge is open to all companies, the aim being to mobilize as many employees as possible.

The challenge applies to each of the 3 events Transju', Transju'Trails, Transju'Cyclo with rankings and awards for each event, plus an overall ranking at the end of the event year.

See the Challenge Entreprise rules. 

The Transju'Trails

The Web Program is now online!

Check out the online schedule and start looking forward to this great trail running weekend!

The Transju'Trails

TRANSJU’ VERTICAL

Just one day left before registration opens… With just 7 days to go until the Transju'Trails, come take on the Dôle: a 2.35 km steep climb to test your limits!

The Transju'Cyclo

Registration for Transju’Cyclo 2026 is now open!

On September 5 and 6, 2026, Transju’Cyclo invites you to Champagnole for a weekend of spectacular views and adventure.

The Transju'Trails 🏔️

Hi! 👋 I'm the La Transju'Trails assistant. Ask me anything about the races, gear, registration, or the courses... I'm here to help!