What makes it notable, among the several drystone buildings scattered across the same ground, is that it alone seems to have been built for a person rather than a flock. The others are most likely sheep-folds; this one, by its proportions, is something closer to a dwelling.

The structure is corbelled, meaning its walls curve inward as they rise, each course of stone projecting slightly over the one below, until the gap at the top can be closed without mortar or any binding material beyond gravity and careful placement. It is a technique with deep roots in Irish vernacular building, found in clocháns along the Atlantic seaboard and in similar upland shelters across the Dingle Peninsula. This particular example measures between 3.13 and 3.3 metres in diameter, stands 1.85 metres high, and has walls 1.22 metres thick, which is a considerable mass of stone for a structure whose interior would barely accommodate two people standing. Those walls, though, are precisely what keep a corbelled building upright and weatherproof without any mortar. The dimensions were recorded by J. Cuppage as part of the Corca Dhuibhne archaeological survey published in 1986, a systematic effort to document the extraordinary concentration of early remains across the Dingle Peninsula.

The location itself is part of what makes the site interesting. The rim of a mountain corrie, the steep bowl-shaped hollow carved by glacial ice and now filled by a lake, is a specific and deliberate choice. Exposed, elevated, and far from any settlement, it suggests seasonal use, perhaps by someone spending summer months on the high ground with animals, a practice known in Ireland as booleying. Whether that is what this structure represents is not certain, but the walls are thick enough to make a convincing case that whoever built it intended to sleep inside.