What makes it quietly interesting is the story of its misidentification. To an observer in 1982, the structure appeared to be D-shaped, formed from thin limestone slabs set side by side, with a large upright stone opposite the entrance that bore enough resemblance to a standing stone that the whole thing was likened to a stone circle. It was an easy mistake to make in a landscape where prehistoric monuments are genuinely common and the geology itself seems to arrange stones into suggestive formations.

When the site was examined more closely in 1998, the reality turned out to be more prosaic, though not without interest. The enclosure, measuring roughly 16 metres north to south and 13.5 metres east to west, is defined by the remnants of a drystone wall, a technique of building without mortar that has been used across Ireland from prehistory into recent centuries. The construction here was assessed as relatively modern, with most of the stones laid transversely rather than in the coursed or upright arrangements more typical of ancient work. A small turlough, the seasonally flooding lakes that are a characteristic feature of the Burren's karst landscape, lies just to the north. The enclosure sits on a gently sloping eastward shelf of exposed limestone pavement, the kind of terrain that makes the Burren feel simultaneously ancient and stripped bare.