The enclosure measures about 66 metres north to south and 85 metres east to west, its bank rising to a height of 2.5 metres and reinforced in places with stone facing. What makes it quietly anomalous is the combination of scale and ambiguity: large enough to have served a significant communal or defensive purpose, yet sitting in ordinary pasture without the kind of monument that usually draws attention.

The bank is accompanied by an external fosse, a defensive ditch running to the north-north-east, though it has since been infilled and survives to a depth of only about 0.2 metres. Two deliberate gaps break the circuit, one to the south-east at 3.4 metres wide and another to the north-east at 4 metres, suggesting original entrances rather than later damage. A possible souterrain, an underground stone-lined passage of the kind used in early medieval Ireland for storage or refuge, lies inside the bank to the south, which would point toward early medieval activity if confirmed. The enclosure type and construction are broadly consistent with that period, though no firm date has been established. Later agricultural and practical use has left its own marks: a silage pit sits against the outer bank face to the north-north-west, a concrete wall and floor occupy the eastern edge, and a roadway cuts through to the south. The interior is level on the western side but drops away on the east, which may reflect the natural contour of the hilltop or later disturbance.