The general research involved the entire Etruscan necropolis of San Giuliano with specific reference to the topography, architecture, and grave goods. Particular attention was paid to the cemetery of San Simone, in use from the Iron Age until the Hellenistic period. The tomb type, chronology, and spatial arrangement were examined in order to provide the base for any subsequent study in the area. An analytical census began of the visible architectural remains that produced notable results regarding the definition of the widespread tomb types, their chronology, and the general topography of the cemetery. Specific studies were undertaken in the archives of the Superintendency and on the grave goods found in the past. The wealth of architectural evidence began in the Orientalizing period with the tumulus tombs, continued with the “a dado” structures and so-called loggia tombs, ending with the late Classical and Hellenistic rock-cut necropolis.