Iron Age defended promontory. Excavation showed that the first phase of the defences, constructed during the early Iron Age fell into disrepair and was replaced and enhanced during the late Iron Age. These are the defences visible today. The earlier defences were enlarged, the ditch being excavated to a depth of around 3m and the rampart widened to about 3.5m. The investigations also found four well-constructed stone roundhouses with paved floors and central hearths, which were occupied until 100 AD. A range of personal items was recovered, including a bone comb, a bronze brooch, glass beads and a fragment of a black jet ring and bracelet, as well as weaving and sewing tools. The promontory fort then fell out of use until reoccupied during the Viking Age.