L'Arche de l'Apothéose (Apotheosis Arch) is located on the cliff above the confluence of Chaillard and Léoncel Rivers near the village of Saint-Martin-le-Colonel on Vercors Regional Natural Park in Drôme department of France. The triple opening has an estimated height of about 20 meters. IGN topographic map Top 25 issue 3136 ET Combe-Laval