Cave of Frochet

Under the porch a source appears. The waters of this emergence seem to come from the mountain of the Echarasson. The water emerges here because it is at this level that the zone of contact between the permeable Uronian limestone and the impermeable marls is located. The water from this cave is captured and then transported by pipes to supply the inhabitants of Saint-Jean-en-Royans. The cave of Frochet was the object of a campaign of archaeological excavations. The pottery dating from the final Bronze and the flint tools suggest that this shelter was occupied seasonally or even permanently.