What makes it immediately unusual is the pronounced drop within its own interior: the northern half of the enclosed space sits about two metres lower than the southern half, giving the interior an unexpected, sunken quality that would register even on a casual walk through.

The enclosure is defined by an earthen bank, the kind of boundary feature found across early medieval Ireland, often associated with ringforts or enclosed farmsteads, though the sheer scale here sets it apart from the typical domestic ringfort. Where those tend to run to perhaps 30 or 40 metres in diameter, this one is considerably larger. A fosse, meaning a ditch cut to the exterior of the bank, originally ran the full circuit, though today it survives only along the arc from the west-southwest to the east-northeast. Traces of internal stone-facing remain visible on the bank at the east and south-southwest, suggesting that at some point the earthwork was reinforced or partly revetted in stone. A laneway follows the monument's outer edge from the east around to the south-southwest, and several gaps in the bank are thought to be modern intrusions rather than original features.