A cashel, to use the local term, is a stone-walled ringfort, the kind of enclosure that Early Medieval farmers and landowners built across Ireland, typically between the sixth and tenth centuries, to define their homesteads and protect their livestock. This one is subcircular in plan, measuring roughly 25 metres across, and its double-faced wall still stands to an external height of up to two metres in places, built with large horizontally laid stones on the outer face in a manner that suggests considerable care.

The site sits on a gentle south-facing slope in rough pasture over the karst limestone of County Clare, the same fractured, cave-riddled geology that defines the Burren. A doline, which is a natural ground depression formed by the collapse or dissolving of underlying limestone, lies about 35 metres to the south-west, a reminder that the ground here is anything but solid beneath the surface. The cashel was already being mapped by the Ordnance Survey on its 25-inch plan in 1897 and again on the 6-inch edition of 1920. The antiquarian Thomas Johnson Westropp, writing in 1901, may have noted it as a "well-built caher with gapped walls", which fits the surviving structure reasonably well. Inside the raised interior, two cells defined by loose stones occupy the northern and southern portions; the larger southern cell measures about 6.5 metres east to west and 6 metres north to south. The cashel sits within a large multiperiod field system, meaning the enclosure is just one element of a much older and more complex agricultural landscape. A second cashel lies roughly 35 metres to the south-east, and a further enclosure sits about 102 metres to the west-north-west, suggesting this corner of the Burren was considerably busier in earlier centuries than its present rough-pasture quietness might suggest.