It is an irregular oval, roughly 58 metres long and 48.5 metres wide, shaped not by strict geometry but by the practical demands of a south-west-facing slope. The people who made it appear to have deliberately built up the interior on the north-east to south-west axis, levelling the ground against the natural fall of the hill, a small but telling detail that speaks to careful, deliberate construction rather than casual boundary-marking.

The enclosure is defined by a scarp, a cut or shaped edge in the earth roughly 0.9 metres high, with an external fosse, essentially a ditch, running along its north-east to south-west side and dropping about half a metre. Along the south-east to south-west arc, traces of a stone-built bank survive on top of the scarp, suggesting the earthwork was once reinforced or topped with a more visible wall. What stands now is reduced, but the form is still legible in the landscape. Particularly intriguing is an irregular scatter of stones in the south-east quadrant of the interior. These may correspond to features marked on the Ordnance Survey six-inch map of 1842, where hachured symbols, the cartographers' shorthand for features with relief or uncertain outline, appear within this area. Whether those stones represent the remains of a structure, a collapse, or something else entirely, the map evidence at least confirms the site was already partially obscured and puzzling to surveyors nearly two hundred years ago.