This volume provides the results of the application of non-destructive archaeological methods (geophysical prospection and systematic surface collections) to the study of the urban site. It includes a review of what was known of the town and a discussion of the development, potential and limitations of the kind of high-resolution, extensive ground-penetrating radar survey which was carried out. Special emphasis is placed on the earliest colonial phase as well as later transformations, and explores how the inhabitants of Interamna Lirenas responded to the challenges and opportunities presented by a growing Roman world.