Isère Tourism

UT4M (The Ultra tour des 4 massifs)

The UT4M is one of the toughest trails in France, where the contestants run for around 169 km with a positive change in altitude of 11,000 m, with an exceptional amplitude of 2,200 m between the starting line and the highest point, in under 53 hours.

August 22 to 26, 2018

From August 16th to August 19th, the trail runners can surpass themselves during the Ultra Tour des 4 Massifs (UT4M), one of the toughest trails in France. Over a distance of 169 km with a height difference of 11,000 meters, the contestants run across the Vercors, Taillefer, Belledonne and Chartreuse mountains, four emblematic mountains ranges of Isère.


Ut4M is always “a la carte”. On the menu, several options allow you to run your own Ut4M, according to your desires and your appetite.

Small pecking or gourmet, here is the menu:
12 races from 20 to 169km and one vertical race, the Ut4M Prologue since 2017!

Why come to the Ut4M 2018?

Official website: