International audienceThe Bois Clair site is a new benchmark for the study of the Atlantic coast area Palaeolithic settlements. Excavated during the high speed Sud Europe Atlantique train line construction project, it revealed several occupation levels, inserted in colluvial and eolian deposits displaying two argillic horizons. The sequence is chronologically established by six luminescence datings. Despite a topographic and sedimentary context leading to the mixing of chronologically distinct industries, especially at the highest point of the site, it’s state of preservation remains surprisingly good, particularly in the upper part of the sequence where the spatial organization is locally preserved, thus allowing interesting behavioral int...