The famous via ferrata de la grande fistoire is located here, in the Fougère rock. Composed of limestone strata that have been vertically straightened and even tilted, strongly folded and fractured several times, this rock lies at the geological crossroads of autochthonous terrain (which has not moved) and allochthonous units (Digne nappe, Valavoire unit), sections of mountains that have migrated several kilometers from the ENE. The clue du Caire is also very spectacular.