About 30 metres in diameter and open along its eastern side, it was built for sheep farming, with a series of pens and shelters still in reasonably good condition inside. The enclosing wall reaches up to 1.5 metres in height and runs up against a disused field wall to the south, though collapse has made it difficult to read the precise relationship between the two. At first glance, it reads as a fairly ordinary piece of pastoral infrastructure on difficult upland ground. Look more carefully at the stonework, though, and the picture gets more complicated.

The survey carried out by J. Cuppage for the Dingle Peninsula Archaeological Survey, published in 1986, identified clear signs that the present sheep enclosure was constructed on top of an older and more substantial structure. The evidence is in the masonry itself. Along the northern arc of the wall, a stretch of about eight metres is notably different: only 0.3 metres high but nearly 1.8 metres wide, compared to an average width of around 0.9 metres elsewhere. Moving northwest, for a further six metres the current wall sits visibly on top of what appears to be a continuation of this wider foundation. On the exterior face, this earlier wall stands about a metre high and projects some 0.4 metres beyond the base of the later construction, suggesting an original wall thickness of roughly 1.4 metres. The lower courses of this older structure are built with considerably larger stones than those used in the sheep enclosure above it. At the eastern end, where the later wall stops, its curving line is continued around the south-eastern sector by a row of large, horizontally-laid flags that may belong to the same earlier phase. Taken together, these details suggest the remains of what may originally have been a complete circular enclosure, the kind of substantial dry-stone structure with deep prehistory on the Dingle Peninsula, later quarried for material and partially rebuilt to serve a more recent agricultural purpose.