You can see a red wooden cross at the foot of the tree. This site and the eponymous cross are known as the ‘Red Cross’. The cross is planted on the exact location of a Roman necropolis and Merovingian cemetery. During archaeological excavations that were conducted here, 506 sepulchers from the 5th and 7th centuries were found. These Roman incineration sepulchers contained weapons, pottery and glassware. The tombs are of great archaeological importance, especially the two tombs dating from the early 8th centuries, which held two horsemen who had been buried with their horses. This part of the area is particularly rich in antiquities from several historic eras (prehistoric, Celtic, Gallo-Roman or Merovingian).