International audienceThis first sketch of the exchange networks of the middle Rhone valley in the 6th-4th century BC is based on the mapping of 355 well-dated sites spread over more than 14,600 km 2 on either side of the 160 km long river route of the middle Rhone between Beaucaire and Tournon-sur-Rhône. Their distribution and organisation suggest the presence of a fairly dense network made up of numerous south-north and west-east circulation axes theoretically linking more than 90 sites on high ground (fortified or not), about a hundred rural settlements, about fifty caves, twenty or so burials and “redistribution” sites (landing stages, various relays, whether or not associated with fords). Traced by the oro-hydrographic constraints of t...