Laurent Coulonges, born in Fumel, dedicated a part of his life to archeological research in the Lémance valley. In the 1920s, he discovered in the Martinet archeological site a new prehistoric culture which he called the "Sauveterrien", in reference to Sauveterre-la-Lémance. 8500 years ago, the last hunters-fishermen of the Lémance valley began a real revolution ; they became (livestock) farmers and swaped their encampments for villages. New techniques saw the light of day, tools became better adapted and people used bow and arrows more generally. SauveTerre Prehistory Museum shows in a pedagogical way the collections from the area's archeological deposit.