Tuscia was the name given to Etruria after the end of Etruscan rule, which prevailed from Late Antiquity and throughout the High Middle Ages.
The name originally indicated a vast territory that included all of historical Etruria: Tuscany, western Umbria and northern Latium, which were divided into three macro-areas: 'Roman Tuscia', 'Ducal Tuscia' and 'Longobard Tuscia'.
The 'Roman Tuscia' corresponded to northern Latium with the ancient pontifical province of Patrimonio di San Pietro, which is equivalent today to the province of Viterbo and the northern part of the province of Rome north to Lake Bracciano.
The route develops precisely in this part of the territory to discover Roman Tuscia and all its wonders.