Problemi e prospettive di ricerca aerotopografica nella città etrusca di Spina (FE). Il caso della necropoli di Valle Pega

This paper moves from a recent research project started by the Chair of Etruscology of the University of Bologna in 2020, with the intent to investigate the internal articulation of the Etruscan settlement of Spina and the relationship between its residential and funerary areas. Among the numerous remote and proximal sensing activities recently carried out during the project, was also undertaken an aerial photography acquisition campaign using UAVs, whose results will be discussed here. Starting from the analysis of a substantial topographical documentation (edited and unpublished) it was possible to arrive at a better definition of the problems potentiality of this territory, which undergone complex changes over the centuries, from the Etruscan times up to the land reclamation of the last century. The project allowed to verify on the field the most problematic aspects that emerged from the analysis of previous documentation; the drone photogrammetric survey activities, had the ultimate goal to better define some topographical aspects not yet systematically investigated and not otherwise documented. The application of this methodology made it possible to contextualize in a more precise way various evidences attributable to the Etruscan center, in particular the necropolis of Valle Trebba and Valle Pega, scarcely notes under the topographical profile and planimetric articulation.