It only entered the formal record in 1991, identified not by a surveyor walking the ground but by someone studying an aerial photograph, where a semicircular feature curving from south-southeast to north caught the eye. That kind of belated, indirect discovery is not unusual for low-lying earthworks in the west of Ireland, where boggy terrain and centuries of agricultural activity can reduce ancient structures to barely legible smudges in the landscape.

What survives at ground level is a rise of roughly 34 metres across in both directions, sitting within sharply undulating pasture with open views northward over bog and low ground, and rising land to the south. Along its southwestern arc runs a curving drystone wall, the kind of construction familiar from field boundaries throughout the region, though here its origins may be considerably older. The external face of the wall still stands to about 1.4 metres in height at the south, but the internal face has collapsed into a broad slump of loose stones, further complicated by field clearance material that appears to have been dumped here when nearby field walls were levelled. That accumulated debris has swelled the wall's effective width to around three metres, obscuring its original form. The wall itself seems to have been about one metre wide when intact. Together, the scarp, the slope, and this surviving arc of masonry may represent the western half of what was once a complete circular enclosure, though researchers have been careful to flag how uncertain that interpretation remains.