The construction of a data center complex by developer Campus IA in the commune of Fouju has uncovered a Gallic palisaded enclosure from the early Iron Age, according to reports. The excavation, conducted by Inrap, covers a surface area of 6 hectares and is divided into three distinct areas to determine the chronology of human occupations on the site, which span from the end of the Bronze Age to the beginning of the medieval period. The first excavation sector, covering 3.5 hectares, revealed an occupation dated to the early Hallstatt period, between -800 and -650. The palisaded enclosure is partially surrounded by palisades built on posts, a type of habitat rarely seen on such a scale in Île-de-France. Three separate segments of palisade, each composed of more than thirty post holes regularly spaced along arc-shaped lines, delimit the occupation to the north, east, and south. Access devices to the internal space have been documented, including a northwest segment with a dozen large pits and post negatives of a diameter greater than or equal to 50 cm. A building erected on six posts completes this layout. To the east, a dozen post holes arranged in a chevron suggest a defensive device or intended for livestock sorting. To the south, a porch built on six posts is associated with a double segment of palisade that could correspond to two successive states of operation. The felling of trees and installation of posts according to a pre-established plan required significant human investment, which is inconsistent with the empty spaces between the palisade segments. The non-continuous rows of posts raise questions about the materials used to form a true physical barrier. Only the southern segment is doubled by a ditch, whose synchronous operation with the palisade is not guaranteed. The hypothesis of branches placed horizontally between the posts appears the most plausible. Evidence of domestic and agricultural activities includes eight clay extraction pits of varying dimensions distributed within the area enclosed by the palisades. Most often composed of successive lobes dug according to the needs of the inhabitants for building materials, these structures, referred to as polylobed, have experienced two types of secondary use on the site. The first, more commonly observed, is that of a daily waste disposal site for the occupants. The second involves an opportunistic reuse of these excavations to create underground storage structures, which are then used as drainage pits. Three constructions formed by two parallel lines of three posts, and six square buildings built on four posts are distributed on the southern edges of the occupation. They form a row of elevated granaries, which, along with the silos, indicate the main purpose of the site, oriented towards the production of agricultural goods. Two stone-heated hearths are installed within the eastern palisaded area. They take the form of circular pits in which the heat generated by the combustion of wood is used to produce thermal splinters of grindstone or limestone, which are then used to cook food. The hypothesis of a culinary use in a domestic setting appears to be favored, given the mobile evidence collected in the adjacent structures. Two parallel ditches spaced less than five meters apart delimit the area of distribution of the remains to the west and southwest. Their layout crosses the footprint of a six-post granary. The diachronic ceramic artifacts from their filling allow for the consideration of a connection to the Latène period occupation (late Iron Age) identified during the diagnostic survey conducted on the adjacent parcel to the south. The area is bordered to the west by a rural path known as the "Chemin Paré," which corresponds to the route of an ancient road connecting Orléans to Chailly-en-Brie via Melun. The border ditches of this path have been recognized and documented during the operation. A burial pit aligned with one of the ditches contained an inhumation without grave goods, which will require radiocarbon dating. Developer: Campus IA Scientific prescription and control: SRA DRAC Île-de-France Archaeological research: Inrap Operation manager: Benoit Dupéré, Inrap