This report publishes and analyses archaeological work undertaken at the Romano-British settlement at Wilderspool in Warrington from 1991-93. Settlement at the site began in the 1st century AD, and it seems from the start to have been associated with the military. There is considerable evidence of industrial activity, principally iron working and pottery. Such evidence is most plentiful at times of known military activity in the area, and the authors suggest that the settlement’s main function was as supplier to the army. There is evidence of increased agricultural activity from the 3rd century when industries went into decline. The evidence from Wilderspool is supplemented with that from Holditch in Staffordshire, a sizeable Romano-British settlement which peaked in size and importance in the early 2nd century, and then quickly fell in disuse after 150, the result, the authors suggest of a northward shift in military stationing.