A double circle Neolithic causewayed camp.
The inner circle can just about be traced all the way around, except where the circles have been interrupted by the downland scarp to the north. A right of way crosses the site, and the double entrances at both east and west can be made out best from this.
Also to east and west, right by the entrance in the case of the latter, are impressively sized Bronze Age round barrows (Impressive for this neck of the woods at least!)
This was the last causewayed camp built on the South Downs and it is roughly contemporary with Avebury Henge, where the Windmill Hill causewayed Camp was being abandoned in favour of the newer style of sacred enclosure, indicating how “backward” the Neolithic culture this far from the plateau of Wiltshire may have been.