The interpretation of the presence of La Tène type objects in the central-eastern Alpine region has always been an important topic for discussion amongst scholars and archaeologists since the mid-nineteenth century. Their opinions were strongly influenced by information derived from the Classical authors who called the inhabitants of this area Raeti and claimed that their population was the result of a migration (Celtic origin of the Raeti) or of the previous populations being swept away by the Etruscans (Etruscan origin of the Raeti). Over the past thirty years archaeologists have acknowledged that during the Second Iron Age there was a particular cultural facies typical of the central-eastern Alpine territory. This culture was named Fritzens-Sanzeno (the name derives from the sites of Fritzens, Inn valley - Austria, and Sanzeno, Non valley - Italy). It developed uninterrupted from the cultures of the late Bronze Age to those of the first Iron Age. This local substratum, characterized by a strongly standardized pottery tradition, by particular architectural types and by a distinctive type of rural sacred place (Brandopferplätze), was strongly influenced during the second Iron Age by both the Etruscan world and the Celtic one. The interactions with the La Tène culture can be easily seen in the presence of objects such as ornaments, glass artefacts and art objects, weaponry, iron tools and coins. Thus, La Tène type objects have become, with different degrees of reliability, important markers of the relationships that existed between the Celts and the Raeti. Reassessment of published information and the study of unpublished materials have allowed the identification of a richer and more detailed picture of the interactions between Celts and Raeti, both from the chronological and the territorial point of view.