International audienceAfter close re-examination of the available data on the Montbéliard-Mandeure area, the broad lines in the organisation of this micro-region linked to the Doubs Valley and opening up on the Alsace Plain, may be outlined. In spite of gaps of information, especially on the scattered rural settlements, a certain number of specifities in the rythm of site settlement, should be underlined. The emergence of a group settlement linked to a vast sanctuary, beginning in the third century B.C., stands out as a significant fact.Un réexamen des données disponibles dans le secteur de Montbéliard-Mandeure permet d'esquisser dans ses grandes lignes l'organisation, au Second âge du Fer, de cette micro-région articulée sur la vallée du D...