The feature, roughly 12 metres across, is one of several ring-ditches within the same field, and it only becomes fully legible when viewed from above.

A ring-ditch is exactly what the name suggests: a roughly circular trench, cut into the earth, that may originally have surrounded a burial mound, a timber structure, or some other focal point now long since gone. This particular example sits at about 92 metres above sea level on relatively flat ground, close to the western boundary of the field. Its continuous ditch, around 1.5 metres wide, can be traced along its entire circuit with no gap that might indicate an original entrance. That absence is notable; many enclosures of this kind preserve at least a narrow causeway where people passed in and out, and the lack of one here raises questions that the surface alone cannot answer. A second ring-ditch lies just 82 metres to the south within the same field, suggesting the area held some sustained significance in prehistory or the early medieval period. The broader landscape adds to that impression: roughly 285 metres to the north-north-west there is a separate enclosure, while about 560 metres to the south sit the ruins of a church and an associated graveyard, both within the same townland of Ardoyne. Whether these features belong to connected periods of activity or simply accumulated across very different eras is unknown.

The ring-ditch is not visible at ground level in any meaningful way; its circular form only resolves clearly in aerial photography, including satellite imagery captured in July 2021. For anyone walking the field, the surface gives little away, which is part of what makes these crop-mark sites so quietly disorienting once you know what lies underneath.