The Trail des 4x1800 begins at Le Lioran station in Laveissière, situated in the Cantal mountains of France's Massif Central. This mountain trail-running event takes place at the end of July, offering race distances from approximately 12 km to 42 km. The 32 km Trail des 4x1800 features around 2,000 meters of elevation gain.
The primary 32 km race is available for solo participants or as a relay, accommodating individuals seeking a complete mountain challenge and teams dividing the effort. The event also features the 22 km Trail des Crêtes, the 12 km Trail du Plomb, and shorter 1.5 km and 3 km races for younger participants. Club des Sports du Lioran organizes the event, utilizing the ski-station terrain surrounding Le Lioran, distinct from a town-road race format.