The Transju Trail in the Jura Mountains

The 42 km Trail

2150m 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 29/03/2027 (-33%) 55€
From 30/03/2027 to 26/04/2027 (-20%) 60€
from 27/04/2027 to 29/05/2027 65€
From 30/05/2027 to 05/06/2027, subject to availability 75€
Shuttle option (to get to the start) 5€
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
25 km + 42 km Combo (prices vary according to the dates listed above) 70€ - 84€ - 91€ - 105€
Sign up

Discover the 42km course with 2,150m of elevation gain , a demanding and varied format in the heart 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.

Practical information
  • Distance : 42 km
  • Departure: Morbier (Marais Stadium) at 7:00 am
  • Arrival : Les Rousses
  • Elevation gain: 2150 m D+
The services offered

INCLUDES

  • A Dynafit runner gift
  • 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 derived from our shop
  • A traditional Franc-Comtois runner's meal (bookable when you register)
Background and profile
TRANSJU Carto 42km

Information coming soon

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

Trace GPX

The GPX track will be available as soon as it is validated by the relevant authorities.

Withdraw my number

Race bibs can be picked up at the Omnibus in Les Rousses. 

Friday, June 4th: from 2pm to 8pm

At the race's starting point, at the Stade des Marais inMORBIER: 

Saturday, June 5: starting at 5:30 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).

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.

SAS Group Assignments (7:00 a.m. start)

Information coming soon

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

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.
The shuttles

Shuttle buses are available to take you to your starting point for the following events:

  • Ultra 110km: from Les Rousses (Tourist Office) to Champagnole (Oppidum)
  • Trail 42km: from Les Rousses to Morbier ( Parking des Gentianes) 500m from the starting stadium
  • Trail & Rando 15km: from Les Rousses to the Tuffes stadium

Information and reservations coming soon…

2027 Schedule:
Refreshments

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

Number: 3 

⚠️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.

KM is currently being edited

Time barriers

Information coming soon

Where to see the riders

Information coming soon

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.

Athletes who wish to take advantage of these terms must submit a request to the Organization via email at contact@latransju.com by May 20, 2027. Registration is not automatic; each athlete must complete the registration process.

Recipients of an elite bib agree to attend the awards ceremony if they are listed among the prize-winning finishers.

Transju' challenge by Jura Pellets

Everyone who has participated in all three events (La Transju’, La Transju’Trails, and La Transju’Cyclo) this year will receive a 10% discount on the Transju’Cyclo, regardless of the race distance chosen.

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

Registration for the 2027 Transju’Trails is now open!

Join us on June 5 and 6 in the Jura Mountains for an event that promises to be especially memorable: the Transju’Trails will be celebrating its 20th anniversary!

La Transju'

Registration for La Transju’ 2027 is now open!

Join us on February 13 and 14, 2027, in the heart of the Jura Mountains to experience a new chapter of La Transju’!

La Transju'

The Transjurassienne is evolving: a new chapter begins in 2027

A legendary event in French cross-country skiing, La Transjurassienne has always evolved alongside its region. Faced with the effects of climate change and snow conditions that have become more unpredictable over the years, we have decided to adapt the race to ensure its future.