Trail des Chamois is a trail running and walking series based in Coligny, in the Ain department of France’s Auvergne-Rhône-Alpes region, usually held around mid-March. The headline Grand Trail des Chamois sends long-distance runners out before dawn, with a 5:00 AM start and roughly 65 to 67 km of running with about 3,300 to 3,400 m of climbing. Shorter trail options sit around 42 km, 31 km, 19 km, and 10 km, and the event also includes walking routes of about 6 km and 12 km, so the day is not only for ultra runners. The race is part of the UTMB Index and ITRA National League, which gives the longer formats extra pull for runners tracking mountain-running results and qualification points.
The long course leaves Coligny for the hills between Revermont and Bresse, heading toward the stone village of Salavre before linking narrow paths above Verjon and Roissiat. Those villages carry a hard wartime history: both were largely destroyed in July 1944 after German reprisals against sabotage and attacks by local Resistance fighters in the Revermont. Runners pass near a quarry where chamois may appear, then continue onto the Sentier Mémoire de Pierre, an open-air museum of stone sculptures, with a passage close to the Grand Brûl monument. The field is capped at about 200 runners for the main event, which gives the longest race a small, serious feel compared with bigger mass-start ultras.