Favoured by the development of preventive archaeology and policies of legal decision adopted by the SRA in Brittany, the multiplication of discoveries and operations focusing on the Bronze Age has transformed our knowledge of domestic settlements and even of the period’s funerary practices. New data render possible the exposure of sites enjoying interaction, as well as local and even regional networks. They also contribute to a better perception of the different cultural dynamics, and more largely of mutations in the social and economic system affecting the region between the mid-third and the early first millennium BCE.