Les Faluns mur archéologique

Between 23 million years ago and 5 million years before our era, in the Tertiary era, the

Aquitaine Basin was occupied by a sea called the Falun Sea.

Traces of this sea are visible in Salles, mainly in the form of shells and remains of fish or cetaceans, especially teeth, compacted in the ground (shell stones), some of which were exploited in the Salles quarries.

Nowadays, these traces of the Falun Sea appear in the old fence walls and some houses, as well as in the cliff on the right bank of the Eyre Bridge.