The area to the north of Rome, bounded by the Tiber and Arno Rivers and the Tyrrhenian Sea. The Etruscans inhabited the area and colonized Aleria, the Po Valley, and parts of Campania. The area is rich in gold, iron, and bronze. The dead were buried in underground tombs or tumuli and were accompanied by a range of funerary goods. The tombs are an important source of Athenian pottery.