The structure is known only from a cropmark, the faint outline of a fosse, or surrounding ditch, that became visible from the air in aerial photography taken in July 1989. Cropmarks appear when buried features such as ditches or walls affect how vegetation grows above them, producing subtle variations in colour or height that are invisible at ground level but legible from altitude. This particular enclosure measures approximately 40 metres in diameter, and the fosse that once defined it has long since been filled or levelled, leaving no surface trace whatsoever.

What makes the site quietly compelling is not the enclosure alone but the density of archaeology surrounding it. Within a relatively small area, two ring-ditches lie to the north-north-west and north-north-east, at roughly 80 and 100 metres distance respectively. A ringfort sits approximately 30 metres to the south-west. Ring-ditches are typically the eroded or ploughed-down remains of prehistoric burial mounds, while ringforts are the enclosed farmsteads of early medieval Ireland, usually defined by an earthen bank and ditch. That several such features cluster together, all sitting within the same field system, suggests this corner of north Cork was in sustained use across a considerable span of time, with different communities leaving their marks in overlapping layers. The landscape here is not empty countryside; it is a palimpsest of occupation, most of it invisible without the specific angle of a low-flying aircraft and the right quality of summer light.