Excavations took place in several trenches in the sanctuary area.
At the border between lots 295 and 299, the excavation was extended in order to uncover the continuation of the path leading to the small rectangular structure situated in front of the large podium. The path was edged with rectangular stone blocks and had a fine earth and gravel surface. It has now been uncovered for a considerable length that has shown it was perfectly orientated in the direction of the access into the enclosure in the eastern part of the sanctuary.

A second trench was opened on the front and along the eastern side of the terminal stretch of the path that joins the flight of steps climbing up to the stylobate. This completed the excavations begun in 2014 of the walls linking the rectangular structure to the podium behind it. As noted in the past, the facing, made up of regular courses of medium sized roughly-worked elements positioned to protect the steps, appears similar to other known interventions in the sanctuary that are usually considered to be restoration and repairs (as for example in the podium structures). However, the structural and architectural similarities between the rectangular building and the structures forming the podium front and its use would seem to suggest the late chronology of this intervention. The late date also appears to be confirmed by the materials found, in 2014 and 2015, in the associated stratigraphy. Nearby, excavation continued of the final stretch of paved road mentioned above. This completed the removal of all residual overlying structures.

Excavations along the northern section of the enclosure uncovered the continuation of the monumental porticoed structure, which had at least seven column bases. It is now clear that this was a structure of some importance, providing a perimeter to the sanctuary area but above all a significant and scenographic architectural and urban definition to the sanctuary area itself.

The Survey and 3D Modelling Summer School was again organised this season by the Universities of Venice and Perugia at Saepinum and San Pietro di Cantoni, during which the aerial and ground photogrammetric surveys made in 2014 of the entire excavation area and a substantial area of the surrounding environment using GPS and UAV devices were updated. Further survey and recording work was carried out on the sanctuary’s main structures using a laser scanner for the preliminary acquisition of points for the subsequent creation of a 3D model, and for two-dimensional and three-dimensional vector and raster products.