It has no visible entrance, which is itself a puzzle, since most enclosed sites of this type would have offered some clear point of access. The enclosure, roughly 26 metres across from north to south, is slightly raised and now heavily overgrown, and it is defined not by a bank but by a fosse, a ditch cut into the ground, that varies considerably in width and depth as it traces its way around the perimeter.

That variation is where things get interesting. On the eastern side, the fosse is about four metres wide at the top; by the time it reaches the west, it has broadened to ten metres. The depth shifts too, from around 1.3 metres on the interior edge to as much as two metres on the exterior at the west. The most plausible explanation for this asymmetry is that the outer edge of the fosse was quarried at some point, with material dug away from the south-western to north-western arc, perhaps for building work or land improvement in a later era. What was once a more regular earthwork boundary has been quietly reshaped by whoever found the loosened soil useful. Without an identifiable inner bank and without any clear entrance gap, the enclosure sits in a category that is genuinely difficult to assign. Embanked or ditched enclosures in Ireland can date from the prehistoric period right through to the early medieval, and their purposes range from settlement and agriculture to ritual and burial, sometimes all of these across different phases of use.

The site sits in the Balliniry townland, partially obscured by vegetation, which means the full extent of the fosse is easier to appreciate on the ground than to read at a glance. The irregular widening on the western and south-western sides is the most visible feature, and understanding it as the result of later quarrying rather than original design helps make sense of what otherwise appears to be a strangely lopsided piece of landscape engineering.