What survives is enough to identify it as a corbelled drystone structure, a type of building in which flat stones are layered inward and upward in concentric rings until they meet at a point or shallow dome, requiring no mortar and no timber. The internal diameter measured roughly 3.9 metres, making it a compact space, the kind associated with early monastic or pastoral use in the west of Ireland.

The structure was recorded by R. A. S. Macalister in 1899, placing it within a long tradition of antiquarian interest in the Corca Dhuibhne region, the Irish-speaking heartland of the Dingle Peninsula that contains one of the densest concentrations of early medieval field monuments in Europe. Macalister, who would later become a prominent figure in Irish archaeology, was among those who systematically documented such sites at a time when many were still largely intact by comparison with their present condition. The site sits in the townland of Com Dhíneol Theas, a name that places it within the deep bowl-like valley geography characteristic of this stretch of coastline.