On a slope above the Ballymacart river valley in County Waterford, a near-perfect circle of overgrown earth sits quietly in the scrub, its purpose unrecorded and its entrance, if it ever had one, entirely invisible. That absence is part of what makes this enclosure unusual. Most earthen enclosures of this kind, broadly comparable to the ringforts that dot the Irish countryside, show at least a trace of a fosse (a surrounding ditch) or a break in the bank where people and animals would have passed through. Here, neither feature survives, or perhaps neither ever existed.

The enclosure measures roughly 24 metres across, close enough to a true circle that the difference between its north-south and east-west spans amounts to less than half a metre. The earthen bank that defines it is best preserved along the downslope, eastern side, where it reaches an external height of two metres and a width of up to three metres, the kind of modest but deliberate construction that suggests sustained effort rather than a casual field boundary. On the south-south-west to west-north-west arc, the bank has not survived at all; in its place there is only a low scarp dropping about half a metre down into the interior. Whether this gap reflects later disturbance, agricultural clearance, or something about the original design is not known. The site sits roughly a hundred metres west of the Ballymacart stream, on an east-facing slope in the valley the river has cut between its north-west and south-east ridges, a position that would have offered both drainage and a view down toward the water.