What makes this enclosure at Harding Grove quietly unusual is its double-bank construction, and in particular the outer of the two concentric banks, which is exceptionally wide, measuring around nine metres across, and unusually flat-topped. That combination of width and flatness is not typical of the common ringfort, or ráth, the kind of enclosed farmstead that dots the Irish countryside in its thousands, and it suggests this site may have had a different function, or a different period of use, from the everyday agricultural enclosures that are so familiar across Munster.

The site was recorded and compiled by Denis Power, with survey notes uploaded in August 2011. The enclosure measures approximately 28.4 metres from north to south and 27.8 metres from east to west, making it nearly but not quite perfectly circular. The interior bank stands only around 0.3 metres on its inner face and 0.5 metres on its outer, which is modest. More substantial is the external fosse, a ditch running around the outside of the inner bank, approximately six metres wide, and then beyond that the second concentric bank, which rises to 0.8 metres on its outer face. A break in the inner bank on the south-south-east side, about three metres wide, likely marks an original entrance. The outer bank has been clipped on its western to north-western face by a farm trackway, and fades into indistinctness as it curves around to the north. The interior of the enclosure is level ground throughout.

The site lies in level pasture and the entire earthwork remains under grass, which means its low relief can make it difficult to read at ground level. Visiting in winter or early spring, when vegetation is at its shortest, gives the best chance of appreciating the concentric layout and the unusual breadth of that outer bank. Looking from a slight distance, or finding a raised vantage point nearby, helps the concentric rings resolve into something legible. The farm trackway cutting through the outer bank on the north-western side is easy to spot and gives a useful sense of scale against the earthwork's surviving profile.