Découvrez la gamme trail Décathlon, jusqu'à -50%

The Course : UTMB® (Ultra Trail du Mont Blanc)

The UTMB® (Ultra-Trail du Mont-Blanc) is one of the world’s most prestigious ultra-trail races. It takes place around the Mont-Blanc massif, crossing three countries: France, Italy and Switzerland. Here are some key points about the race:

Find out more about the UTMB® route below :

The Mont Blanc ultra trail in figures

Distance and elevation gain for the Mont Blanc Ultra Trail

The UTMB® covers a distance of around 170 km, with a positive altitude difference of around 10,000 metres.

Start and finish:

The race starts and finishes in Chamonix, France.

The UTMB® 2023 route in detail :

The route takes riders through magnificent Alpine scenery, passing through passes, valleys and typical villages. Some of the highlights on the route include the towns of Courmayeur in Italy and Champex-Lac in Switzerland.

Departure: Chamonix (France) – Altitude: 1,035 m
Les Houches (France) – Altitude: 1,008 m
Ascent to Col de Voza: ~580 m ascent Col de Voza – Altitude: 1,653 m
Saint-Gervais (France) – Altitude: 810 m
Les Contamines-Montjoie (France) – Altitude: 1,168 m
La Chapelle Notre-Dame de la Gorge – Altitude: ~1,200 m
Ascent to Col du Bonhomme: ~930 m ascent Col du Bonhomme – Altitude: 2,329 m
Ascent to Col de la Croix du Bonhomme: ~130 m ascent Col de la Croix du Bonhomme – Altitude: 2,479 m
Les Chapieux (France) – Altitude: 1,553 m
Col de la Seigne – Altitude: 2,516 m
From Les Chapieux: ~960 m ascent Lake Combal (Italy) – Altitude: ~1,970 m
Courmayeur (Italy) – Altitude: 1,224 m
Refuge Bertone – Altitude: 1,989 m
Col Sapin – Altitude: 2,435 m
From Courmayeur: ~1,210 m ascent Arnouvaz (Italy) – Altitude: 1,769 m
Col Ferret – Altitude: 2,537 m
From Arnouvaz: ~770 m ascent La Fouly (Switzerland) – Altitude: 1,593 m
Champex-Lac (Switzerland) – Altitude: 1,466 m
Cattle – Altitude: ~1,987 m
From Champex-Lac: ~520 m ascent Trient (Switzerland) – Altitude: 1,273 m
Col de la Forclaz – Altitude: 1,527 m
Ascent from Trient: ~250 m ascent Catogne – Altitude: ~2,000 m
From Col de la Forclaz: ~470 m ascent Vallorcine (France) – Altitude: 1,261 m
La Flégère – Altitude: 1,877 m
From Vallorcine: ~615 m ascent Arrival: Chamonix (France) – Altitude: 1,035 m.

UTMB® course map

UTMB® course profile

More info on the official UTMB website

Related events:

Although theUTMB Besides the main event, Mont Blanc Week also features other races, such as the CCC (Courmayeur-Champex-Chamonix), which is slightly shorter, the TDS (Sur les Traces des Ducs de Savoie), the PTL (La Petite Trotte à Léon), which is a team race over a longer distance and without a fixed course, and the OCC (Orsières-Champex-Chamonix), which is shorter and more accessible.