The village is built on apolje oflimestone and dominated by a vastKarst landscape.[3] This polje lies on asyncline generally known as the "Plateau de Vassieux".
The Plateau de Vassieux is the site of numerous other karst phenomena, such aslimestone pavements andcaves, which are studied and explored by localspeleology groups.
Vassieux-en-Vercors is home to several prehistoricarchaeological sites, and has a Museum of Prehistory which was created in May 1970 after the discovery of aflintknapping workshop.[4]
^Centre Historique de la Résistance en Drôme."Cartographie de Vassieux-en-Vercors" (in French). Archived from the original on 23 October 2007. Retrieved1 January 2008.