During road construction at Le Boisanne, near Plouer-sur-Rance, the discovery of a pottery was followed by the excavation of a neolithic pit. Narrowand deep, this isolated pit was larger on its east side, A level of charcoal in the top of filling has produced a carbon 14 date. The pottery has some affinities with the Cerny Group. The hypothesis of a grave can be suggested.Lors de travaux routiers au lieu-dit Le Boisanne à Plouer-sur-Rance (Côtes d'Armor), la mise au jour d'un ensemble de tessons a permis la fouille de sauvetage d'une fosse néolithique. Etroite et profonde, isolée de tout contexte, la fosse présente un renflement à son extrémité est. Une lentille charbonneuse scellant le remplissage a fourni suffisamment de charbon de bois ...