The edge of the necropolis around the tomb of the "Panthers", the so far oldest known painted tomb in Tarquinia, is an example of how it should have been the vast Etruscan burial ground that raised on the "Monterozzi" hill: a tangle of tombs dug into the rock and stuck with each other to take advantage of any space.
The chamber tombs, as they occur between the 8th and 7th centuries BC, were marked on the surface by "mounds" of earth of various sizes.