No earthwork rises above the soil, no ditch catches the eye, no ring of stones interrupts the grass. The site exists, in any practical sense, only from the air, where the buried outline of a circular fosse, a defensive ditch dug around an enclosed space, leaves a faint but legible mark on crops growing above it. These cropmarks form when vegetation roots into disturbed or differently composed soil and responds unevenly to drought or moisture, producing colour and growth variations that resolve into shapes when seen from altitude.

The enclosure sits on a very gentle eastward-facing slope that looks down over marshy ground and, beyond it, the sea. It measures roughly 45 metres in diameter, a scale consistent with a ringfort or similar enclosed settlement, the kind of circular farmstead that was built across Ireland from the early medieval period onwards. Its defining feature is the fosse, which would once have surrounded whatever stood at the centre, though whether that was a domestic structure, a livestock enclosure, or something else entirely is not recorded. What is known comes from a single aerial photograph, which captured the cropmark geometry clearly enough to confirm the site's existence and rough dimensions, even though nothing about it can be confirmed at ground level.