A few miles from the main trail of the Rhône Valley between Northern Europe and the Mediterranean coast, a Gateway to Provence, Saint-Martin-d'Ardèche lies underneath the silhouette of medieval Aiguèze at the end of the Ardèche Gorges carved through the limestone plateau de Gras (average 300 m high, culminating at the 719 m high Dent de Rez, i.e. saw tooth) (reïsse=saw in provençal) on between Vallon-Pont-d'Arc with the magnificent natural stone arch on the river and Saint-Martin-d'Ardèche. Since 1960, a panoramic road follows the canyon up the hill through the garrigue, the first Mediterranean vegetation when arriving from the North, and ends in Saint-Martin-d'Ardèche with a view on the end of the river flowing towards the Rhône in direction of the Fuji-Yama silhouette of 1900 m. high Mont Ventoux in Provence.