The Col du Marchairuz is a Jura pass in the canton of Vaud that connects Aubonne near Lac Léman with Le Brassus in the Vallée de Joux via Bière or St. George. The pass is at 1447 m above sea level in the middle of the regional park "Parc jurassien vaudois". The pass offers an impressive view over Lake Geneva to Mont Blanc, the highest mountain in the European Alps, 90 kilometres away.