Encircling the Promontory
The southern portion of the promontory was defined by a relatively small rampart, scarping of the already steep natural hill slope combined with the creation of a ditch and terrace. Excavations on the south revealed a distinctive pattern of rampart construction with small gangs of workers creating heaps that were then joined together; the rampart was largely lost on the east due to slumping. The outworks to the fort lay to the north, creating a divided annexe area, with the northern rampart covering the chevaux-de-frise and with two lines of ramparts and ditches running down the western slopes of the promontory. The outwork ramparts are degraded by historic agriculture and erosion but still survive as low earthworks, and the ditches are intact.