Phase one: 400 BC
Wandlebury Iron Age hill fort occupies a prominent position below the crest on the south-facing slope of Gog Magog Hill. Although Neolithic and bronze age hill-top occupation is known from finds of pottery and stone artefacts, the form of the settlement is unclear. However, in the 5th century BC one settlement concentrated on what is now the southern third of Varley’s Field, where large groups of storage pits were cut into the chalk bedrock, over an area of at least 150 square metres.
Around 400 BC the first hill fort was constructed, cutting through the earlier settlement, which appears to have continued both outside and inside the rampart. The hill fort consisted of a substantial outer ditch and an inner rampart bank of chalk rubble and soil, enclosing a circular area of about 6 hectares. Archaeological surveys suggest that there was a major entranceway to the east. This display of earthmoving and enclosure signifies both a centralised control of local human resources, and a powerful stronghold following a tradition widely seen across northwestern Europe at this time.