Roughly oval in plan and gently domed, its interior measures approximately 72 metres north to south and 62 metres east to west, making it a substantial earthwork by any measure. What gives it its particular character is the layering of its defences: a wide, stony inner bank, then an external fosse (a ditch cut to define and defend the perimeter), and beyond that a further low outer bank. The whole arrangement reads as a considered piece of landscape engineering, even if time and agricultural activity have softened its edges considerably.

The site retains enough of its original form to convey how deliberately it was positioned. Views extend in all directions from the interior, which would have made the enclosure highly visible to anyone moving through the surrounding grassland and equally useful as a point from which to observe the wider landscape. The ramped entrance, about four metres wide and set at the north-east, suggests a formal approach rather than a simple gap in the bank. Not everything has survived intact: the fosse and outer bank have been levelled in the northern sector, and there has been quarrying in the south-west corner of the interior and to the east of the exterior. A lime kiln, a simple stone structure once used to burn limestone to produce agricultural lime, sits in the north-east of the inner bank, a reminder that the site continued to be put to practical use long after its original purpose was forgotten. Trees have taken root along the inner bank, softening the stonework they grow through.