From the second century BC, the Samnite settlement located in the valley began to define itself as a place of transit, rest and market. This stable occupation favoured an initial building development that also included the construction of craft environments suited to wool processing. The passage of the flocks, in fact, did not represent only a mere action of crossing the area but involved a careful management of the economic activities intended for the elaboration and treatment of the products of the supply chain. The remains of a fullonica (laundry and dye workshop), located below the structures visible to the north of the Forum can be ascribed to this chronological horizon. The building was used for the finishing of textiles that had to be degreased after spinning and weaving work, or that just had to be de-stained and cleaned. The presence of the craft workshop attests to the consolidation of local entrepreneurial interests related to sheep farming and affirms the economic role of the centre built on the tratturo.