Urban Geology for the Enhancement of the Hypogean Geosites: the Perugia Underground (Central Italy)

Abstract Urban geology analyses natural risks and promotes geoheritage in urban areas. In the cities, characterized by a high cultural value, hypogean artificial cavities, often present downtown, offer unique opportunity to show geological substratum. Moreover, these places could be point of interest trekking with abiotic component landscape as topic (geotourism). To investigate areas, rigorous bibliographic research geomorphological assessment are first steps, but, besides, non-invasive methods new techniques increasingly demand. this paper, we multidisciplinary study on Etruscan Well (third century B.C.), one most important artefacts Perugia (Umbria region, Central Italy). The characteristics sedimentary deposits outcropping along perimeter walls have been collected. underground geoheritage, provide 3D model well surrounding area integrating georeferenced laser scanner survey ground-penetrating radar prospecting. We aim obtain tridimensional mapping accessible internal rooms depict Well, also revealing network buried galleries. results not only meaningful advancement archaeological, historical knowledge downtown but hint for promotion dissemination, providing images reconstruction