The feature is semi-circular, roughly 26 metres along its longer axis and 10 metres across, and it is defined not by standing stonework but by a scarp, a deliberate step or bank cut into the slope, running northwest to southeast. At its widest the scarp measures about 6.5 metres across and barely reaches 0.7 metres in height. It is not dramatic. It does not announce itself. But it is old, and it was made with purpose.

A fosse, meaning a ditch, runs along the northern and eastern sides, roughly 12 metres wide overall with a basal width of nearly 5 metres, though it has silted and settled to a shallow 15 centimetres deep. The scarp to the southeast gradually loses definition, merging back into the natural ground level, which gives the whole feature a partially dissolved quality, as though the landscape is slowly reclaiming what was once drawn out of it. The interior of the enclosure slopes toward the northeast. That orientation is not incidental: from this ground, on a clear day, the Rock of Cashel is visible to the northeast, the great ecclesiastical outcrop that dominated the political and religious life of Munster for centuries. Whether the enclosure's builders were aware of or oriented toward that landmark is unknown, but the alignment is striking. A second enclosure of the same general type lies roughly 42 metres to the east, suggesting this was not an isolated feature but part of a broader pattern of activity across this hillside.