When the Ordnance Survey first recorded the site on their six-inch series, they drew it as kidney-shaped. By the time the third edition appeared in 1931, the same enclosure had been rendered as circular, roughly thirty metres in diameter. Whether this reflects genuine reinterpretation, differing surveyors, or simply the difficulty of reading a grass-covered earthwork from ground level, the discrepancy is a small reminder that early cartography was as much art as science.

What survives on the ground today is a grassed-over stony area measuring approximately thirty metres east to west and twenty-five metres north to south, its edges defined not by an obvious bank or wall but by the natural drama of steep inclines on the eastern, southern, and western sides. In 1963, inspectors from the Office of Public Works noted traces of a possible fosse, a defensive ditch, running from the south-east to the south-west of the monument. A fosse of this kind would originally have reinforced the enclosure's position on the hillock, adding an artificial barrier where the natural slope alone may not have been considered sufficient. That ditch, however, appears to have been backfilled at some point after the 1963 observation, leaving even less visible than before. Occupying the eastern half of the monument is a cashel, a type of stone-walled enclosure characteristic of early medieval Ireland, recorded separately in the national monuments register.