The platform is roughly thirty metres across, grass-covered and level, defined not by a wall but by a scarp, a low stepped edge where the ground drops away, ranging from about sixty centimetres to just over a metre in height. What makes it quietly puzzling is the absence of any visible entrance. Most enclosures of this kind preserve at least a gap or a causeway where people and animals passed through; here, there is nothing obvious to indicate how, or whether, anything moved in or out.

Partial traces of a fosse, the external ditch that would originally have reinforced the boundary, survive at the south-east and north-west, though both are heavily silted and shallow, the deeper of the two reaching only thirty centimetres. The enclosure sits on flat ground close to the river, a position that would have made the surrounding landscape readable in most directions. Around a hundred metres to the north-east, a separate rath stands on the same ground. A rath is a type of enclosed farmstead typical of early medieval Ireland, usually defined by one or more earthen banks, and their proximity here suggests this stretch of the Lung valley was occupied and organised over a considerable period. Whether the two features are contemporary or belong to different phases of use is not recorded, but the pairing is unusual enough to prompt the question.