The top stands in Wandlebury Country Park, a nature reserve owned by Cambridge Past Present and Future, formerly known as the Cambridge Preservation Society. Wandlebury was already inhabited in the Bronze Age and 2500 years ago there was an Iron Age hill fort here known as Wandlebury Ring. This hill fort once had concentric ditches and earthen walls which were kept in place by wooden palisades. Although the fort has vanished, the ditch (the Ring) dug around the edge can clearly be seen and walked along, being 5 metres deep in places and offering an adventurous route along its edge. There is no evidence that it was ever used in defence.