This is not unusual in theory, since Iron Age and early medieval fort builders across Ireland were pragmatic about incorporating natural features into their designs, but here the arrangement is unusually legible. The cliff face simply replaces an entire side of the enclosure, and the earthwork banks, fosses, and formal entrance survive on the remaining three sides with enough clarity to read the original logic of the place.

The fort is bivallate, meaning it was defended by two concentric banks rather than one, a feature generally associated with higher-status enclosures in early medieval Ireland. The inner bank still stands to an external height of nearly three metres on the landward sides, with a fosse, or defensive ditch, running between the two banks to a depth of just over two metres. The outer bank is considerably slighter, rising only half a metre, and a shallow external fosse runs beyond it. The enclosure itself is roughly oval, measuring about forty metres north to south and thirty-two metres east to west. A causewayed entrance, where the banks and ditch are interrupted to leave a solid ground crossing about three metres wide, faces east-south-east; a narrower causewayed break in the bank to the south-south-west may represent a secondary opening. The interior is grass-covered pasture and slopes down toward the cliff edge to the west. Ordnance Survey mapping from 1842 recorded the site as a circular hachured enclosure, with later nineteenth and early twentieth-century editions capturing the bivallate detail and the defining cliff face more precisely, which suggests the earthworks were already recognised features of the landscape well before formal archaeological documentation began.