At the occasion of a very huge field diagnostic conducted by Inrap in 2008 at Mer - "Les Portes de Chambord II", two series and two pits provided lithic and ceramic materials attributed to the Final Neolithic. The ceramic assemblage from pit F1517 is characterised by three kinds of production. The first one corresponds to small sized pots, with round or not protruding flat bottom and thin walls. The surface is sometimes polished. The second set is grouping the big coarse potteries, with flat bottom and thick walls, from which the tronconical shapes called “flower pots”. They often wear horizontal tongued knobs. The last third series is containing ladles and spoons, which are particularly abundant in that feature and wear nearly systematically a greyish slip. The lithic material includes a majority of microdenticulates, made on very different kinds of blanks, as well as an arrowhead, some polished axe fragments, and a tang of a type Grand-Pressigny dagger.

With a location at the southern ridge of the Beauce plateau in the Middle Loire river valley, the site could receive regional influences from the Quessoy group and the Gord. All the ceramic features show parallel with the eponymous Gord site, Bettencourt-Saint-Ouen (Somme), and Ecury-le-Repos (Marne). If the Gord group reaches the Loire valley, contacts with southern groups like Les Matignons and Peu-Richard could be possible.