During research documenting the rock-cut art in the localities of Torbiere, Aga and Camisana, the site of Cavasabbia ai Piani di Sasso was observed. Here, the remains of dry-stone walls were visible and a series of circular or rectangular anomalies in the terrain suggested the presence of buried structures. In 2014, small sondages were excavated to check the nature of the structures and look for datable materials.

The corner of a room (structure 1) was exposed, within which there were two overlying floor surfaces each covered with charcoal. The C14 dating of the collected samples produced two important dates: 620-780 AD (95,4%) for the earlier structure and 1040-1260 AD (95,4%) for the later one.

In 2016 and 2017, limited excavations took place in sector 4 where a sunken –floored building was identified. When put together the plans from 2016 and 2017 revealed a rather interesting and complex stratigraphic sequence, relating to two structures from different periods. Wall ES 47 belonged to a small structure (structure n. 2) the southern part of which was below ground level, measuring 6 × 5.5 m (c. 33 m2), whose south-eastern corner was uncovered in trench A. This structure was dated to within the 13th century (1295-1420 AD (95,4%) by C14 dating on the charcoal samples collected from the floor surface in 2016. It abutted, with a slight rotation to the west, a pre-existing wall, ES 58, and partially cut it. ES 58 was formed by large stone blocks and belonged to a building that was probably larger (structure 3), which has not been dated thus far. This wall was partially robbed, probably during the building of the smaller structure (structure 2). ES 58 did not appear to be in continuity with a wall exposed by the removal of the turf to the south and not yet numbered or investigated.

The intention is to extend trench CVS 04 towards the south in order to explore what appears to be a rather complex building sequence.