The Corbières massif forms the lowest part of the Eastern Pyrenees, and as such is the easiest natural passage to connect the coastal plains of Languedoc and Roussillon in Southern France with those of Gironès and Barcelona in Northern Spanish Catalonia. This geographical situation confers on each of the sites discovered in this passage a role of milestone that can allow us to apprehend the dynamics of anthropic movements and relationships across these spaces. In 2007, the presence of a first Gravettian site in this Northern Pyrenean foothill was published: Jas d’en Biel 1. This discovery filled an “archaeological void” between the Gravettian sites of Languedoc and those of Spanish Catalonia. The discovery of a new site: Jas d’en Biel 2, 300m from the first, reinforces the Gravettian presence in this region. The fact that the two sites present similar characteristics in terms of anthropic choices (solar orientation, proximity to a watercourse, lightness of the soil, protection from the wind, etc.) are all parameters that demonstrate the choices made by Gravettian men. The respective compositions of the lithic industries of the series do not show significant differences, allowing us to imagine a certain synchronism between the two sites. Burins are the most numerous tools, but at Jas d’en Biel 2 we find specimens close to the Raysse type that were absent from Jas d’en Biel 1. Jas d’en Biel 2, as well as its neighbor Jas d’en Biel 1, shows similarities with certain sites in Languedoc, such as Bois-des-Brousses, La Treille, La Verrière, the caves of Bize or La Crouzade. These are usually small deposits that belong to terminal moments of the Gravettian period. All these parameters point to similarities between the Languedoc sites and Jas d’en Biel 1 and 2. The geographical position of the Corbières massif allows us to consider the Jas d’en Biel sites as the last milestones of the Gravettian period upstream from the crossing of the Pyrenean passes, before the sites of the Serinyà region, such as l’Arbreda. Recent surveys carried out in the same valley of the Ravin d’en Saman have made it possible to locate and identify several other open-air settlements related to the Gravettian lato sensu. An analysis of intra- and extra-site characteristics will aim to understand the parameters that led men to settle in this micro-zone, as well as the reasons for this “concentration”.