The survey indicates marked continuity in rural settlement around Tuscania from Etruscan times into Roman Early Republican period (c.300-170 BC: 212 sites), implying that there was minimal disruption to pre-existing systems of ownership following the subjugation of the area by the Roman army. There was a dramatic expansion in rural settlement, a filling-up of the countryside particularly in formerly under-developed areas away from the town. This growth was encouraged by a better communications network, especially by the upgrading of the Via Clodia.There were increased levels of investment both in the town and in the surrounding countryside. Maximum site numbers developed in the Later Republican period (170-30 BC: 230 sites), and on the evidence of intensive grid collection of surface remains at selected sites, and geophysical survey at others, the core buildings of agrarian units first reached their maximum extent at this time. However, there is little evidence for large slave-run villas producing goods geared primarily for export and displacing the free peasantry, despite the written sources emphasizing this process throughout Italy at this time: the countryside around Tuscania was dominated by small farms and villages, and high-ranking sites did not bring significant changes to long-established farming regimes.