This is one of the few wetlands in the Vercors massif: essentially limestone, it is not conducive to this type of site. The site contains a precious ecosystem with rare plant and animal species.
At an altitude of 1,000 meters in the Vercors, the Peuil peat bog overlooks the 60-hectare commune of Claix. On the cliffside, 400 species of flowers thrive in the cool soil, including Grande Astrance and Drosera, an insectivorous plant. The fauna is highly varied, and if you're discreet, you may catch a glimpse of the peony bullfinch, the agile frog, the palmate newt or the depressed dragonfly.