An interactive map and layered history of Roman Wales, recording over seventy sites from the first campaigns against the Silures in AD 47 to the departure of the last troops in the early fifth century. The map is organised in five layers: the legionary fortresses of Caerleon and Usk; thirty seven auxiliary forts from the Menai Strait to the Severn Sea; the marching and practice camps left by armies on campaign, most discovered from the air; the roads, with Sarn Helen and its legend at their heart; and the civilian landscape of the towns at Caerwent and Carmarthen, the Dolaucothi gold mines, the villas of the south east and the native settlements that carried the older way of living through the Roman centuries. Every site is located by Ordnance Survey grid reference from the published record, and the accompanying account traces how the occupation was absorbed into Wales itself, its forts becoming churchyards, castles and legends, its roads still walked today. Includes a link and QR code to the interactive map.