The Fort l'Ecluse Challenge is a trail running race organized by the Bellegarde Basin Athletic Club. It offers two courses of 12 and 19.3 km, with a positive elevation gain of 960 meters. Participants traverse spectacular landscapes, including the classified site of the Vierge de Léaz and the Ecluse Gorge.
One of the highlights of the race is the passage through the underground gallery of Fort l'Ecluse, which includes 917 steps. This event takes place in an exceptional setting, combining cultural heritage and nature. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
19 km
960m+
12 km