It sits within the north-east quadrant of a cashel, the kind of dry-stone circular enclosure used in early medieval Ireland to define a farmstead or small defended settlement. The souterrain beneath, a stone-lined underground gallery typically used for storage or refuge, runs north to south and extends to more than four and a half metres in length, though the full extent is difficult to assess given that it has been blocked up at some point in its history.

The partially uncovered lintel at the southern end marks what would have been the entrance. Lintels of this kind, large flat stones laid horizontally across the walls of a souterrain to form its roof, are occasionally exposed by erosion, agricultural work, or simple time, and this one offers a rare surface trace of an otherwise buried and inaccessible structure. The site was recorded by McCaffrey in 1952, placing it within a tradition of field archaeology in the west of Ireland that was quietly cataloguing features like this long before more systematic survey work began.