La Banne d'Ordanche is the remnant of a volcano that rises to 1,515 meters above sea level. Frozen in the Pleistocene period two million years ago, its neck-shaped summit offers …
The Puy de Lassolas is the twin of the Puy de la Vache: these two volcanoes were born during the same eruption. Their lava flow created the Aydat and Cassière …