The site of Bazoches-sur-Vesle « les Chantraines » (Aisne) is a final La Tène farm which we can qualify as aristocratic. The excavations of this site revealed some signs of post-reducing (smithing) activities. Our metallographical analysis relates to slag waste (smithing slag cake) found during the excavation. The results allow us to outline the craft activities and try to place the site into its socio-economical regional network.