The rocks of Chaveroche

How did the stone mastodons appear? In a few tens of millions of years, the earth from this puy was swept away by wind and rain, letting the granite mother rock appear on the surface. Geometric cracks (diaclases), have formed and the granite blocks, under the action of frost, have cracked and broken. Water and wind continued this long erosion work on the periphery of each monolith to give outcrops these rounded shapes.