Hanging on the western slope of Mount Lachens stands the rock of Sainte-Madeleine. This rocky peak is covered by almost inaccessible ruins which were once a castrum, built in the 11th century. This is all that remains of the original village, besieged in the 14th century by Raymond de Turenne and destroyed during the religious wars. The residents have then decided to descend into the plain to create the municipalities of La Bastide and La Roque-Esclapon.