The Trail du Grésivaudan starts its long-course runners in Lumbin, Isère, for a late-February mountain-and-forest trail race within the Grésivaudan valley. The event provides distances ranging from 5 km to approximately 30 km. The main race is listed at about 31.75 km with roughly 1,600 meters of elevation gain, indicating a significantly hilly course rather than a casual local run.
The Grand Trail proceeds from Lumbin towards Grenoble, commencing at the Plaine des Sports. Its elevation profile shows nearly as much descent as ascent. Participants can complete the long course individually or as a two- or three-person relay team. A shorter alternative begins in Grenoble. The race is also known by the nickname “Au gré des montagnes,” reflecting its straightforward point-to-point trail design through mountain and forest landscapes connecting valley communities.