Ultra Trail Grand Colombier - 25 km 2026

The 25 km Ultra Trail Grand Colombier is a trail race held in Seyssel, Ain department, Rhône-Alpes, starting at 2:30 PM. This is a compact mountain race, 25 kilometers with 1,300 meters of elevation gain, meaning the climbing is a central element of the day. Runners have six hours to complete the course. The entry limit is 400 participants, keeping the field smaller than a large road race. Les Intenses Sessions organizes the event, with race details available on the Ultra Trail Grand Colombier website.