Plus profondément enfouies, sont encore visibles, les bases d’un sanctuaire gaulois datant de la seconde moitié du 1er siècle avant JC.
Saint-Léomer: Site de Mazamas
This gallo-romanesque site dates back to the 1st century BC. The Abbot Florentin Reix discovered the site around 1945. It has a surrounding wall, a portico facing east and twin temples with a vestibule and a square inner room. Buried further down, but still visible, are the foundations of a gallic sanctuary dating from the second half of the 1st century BC.