Abstract New elements concerning human impacts on the Vendée coast at the end of the Mesolithic period. A pollen analysis undertaken on coastal mud flats (Bâtard beach, Brétignolles-sur-Mer, Vendée, western France) has revealed elements concerning human impacts at the end of the Mesolithic period, around 6900 BC, through the presence of Cerealia type and ruderals. These new findings concerning the early appearance of taxonomic groups connected with agriculture are to be added to many others already found in the Loire Valley and the Armorican structure in western France. Erring on the side of caution, and however problematical these results are, we once again venture the hypothesis of the early spread of agricultural techniques via a southern current. To cite this article: C. Joly, L. Visset, C. R. Palevol 4 (2005) .