The Salagou Valley with the ruins of the Château de Malavieille
The Salagou stream is the main feeder for the Lac du Salagou. Over the years it has carved out this valley through the red sandstone ("Ruffes") rock. Several volcanic plugs remain standing proud of the sandstone. The ruins of the Château de Malavieille stand on top of one of the volcanic plugs or puy.