The event is conceptually similar to cow fighting contests held in the context of summer folk festivals in several of the Swiss valleys.
The cows naturally fight in order to determine the hierarchy within the herd: provided the animals' horns have been properly trimmed little lasting damage ensues.
Elimination heats take place in various locations in the Aosta Valley during the spring, summer and autumn.
Traditionally the first contest of the season takes place at Combe de Vertosan, a small high valley located between La Salle and Avise, near Mont Blanc.
Today they take place in the newer Croix-Noire Arena which is located on the recently developed eastern edge (French: Zone commerciale) of Aosta, near Saint-Christophe.