It reads, at first glance, as a slight rise in the ground, a gentle thickening of the field. But its geometry gives it away: a roughly circular interior some twenty-five metres across, ringed by an earthen bank that stands considerably higher on the outside than the inside, the result of soil being thrown inward during construction rather than outward.

This is a rath, the most common type of ringfort found across Ireland, typically dating from the early medieval period, roughly 500 to 1000 AD, when such enclosures served as farmsteads for individual families or small kin groups. The bank here is about two and a half metres wide, rising only half a metre above the interior ground level but a full metre and a half above the exterior, which gives a reasonable sense of the original defensible effect without anything so dramatic as a stone wall or deep ditch. On the eastern side there is a possible entrance, a gap of around four metres, oriented towards the sloping ground that falls away gently in that direction. The ridge setting is fairly typical; elevated ground offered drainage, visibility, and a degree of natural advantage that early farmers valued as much as any later military builder might.