BOULDER — Brad Lidge traveled to Italy in March to explore a remote, wooded section of southeastern Tuscany. Brad Lidge uses a GPS/topographical survey station to map an ancient Etruscan site in Siena, Italy, in July of 2023. (Photo provided by Brad Lidge) “We were surveying this area, looking for Medieval sites, when we came across an undocumented Etruscan tomb,” Lidge said last week, sitting on the patio of his 5 1/2-acre spread near Boulder. …