The village is situated at 640 meters altitude on a plateau dominated by cliffs and lined Guilhaumard black marls rich in marine fossils from the Jurassic (175 million years ago), a favorite of researchers across Europe.
The plateau Guilhaumard: Plateau limestone (karst) heavily eroded in places (ruiniform chaos, sinkholes, caves, sinkholes) once forested with beech, now reduced to a dry lawn. We meet: a rich flora of over 1900 species, some endemic and rare wildlife to the few subjects (pipit, bunting, wheatear, newts, butterflies).