The mound was built on a rocky rise. The archaeological research, of the Università degli Studi di Torino and of the Soprintendenza per i Beni Archeologici dell'Etruria meridionale, are highlighting a remarkable building of the Orientalising period (7th century BC) that has many similarities with the other mound of the "Doganaccia". This necropolis is a burial area probably used by Etruscan high rank families, in which likely emerged regal figures.

The excavations have revealed the northern part of the monument drum, whose foundation is dug in the rock and was provided with an outer covering of blocks, now lost because of the depredations suffered by the tomb. The diameter of the building is about 40 meters long, measure that makes it the largest mound of Tarquinia.

The princely tomb, facing west as the "King's" mound, is preceded by a large open entrance delimited by thick walls of limestone blocks well joined to each other; this room introduced to the funerary chamber, to be placed towards the centre of the mound. The "piazzaletto" is half-constructed and characterized by a large rock-hewn stairway that descends towards the entrance of the burial chamber, where rites and ceremonies were held for the deceased.
For the realization of the monument a powerful intervention has been made, articulated in different building phases. They have started levelling the limestone rise and digging in depth the burial rooms ("piazzaletto" and funerary chamber). Then the rock on either side of the "piazzaletto" has been regularized to accommodate the vestment blocks. Created the wall, with a typical Cypriot technique, the mound has been elevated with layers of soil and stones.