 The site, nicknamed the "Tomb of the Badger" because of a badger den at the tomb's entrance, dates to between third and second century BC, a time when the Etruscan civilization was in the process of being conquered by the Romans.Marcocci first found the opening in 1991, but kept it a secret for 16 years, thinking it would be robbed.When logging nearby threatened to uncover the site, Marcocci, who grew up in the area, decided it was time to investigate the site.