Rocher du Grisot

The formation of the volcanic massif of Cantal has caused lava to rise over fragile areas in this northern part of the Dordogne. These upwellings are still visible today in the form of either small puys or shreds of flow. The Rocher du Grisot, which is, more generally, part of the Puy called Puy d'Enval or Puy de Vernejoux, is a witness hill or outlier cleared by the erosion of a flow whose origin remains unclear.