The cavity extends at least two metres to the north-north-east, though its full length remains unknown. It is the kind of thing that rewards a careful eye rather than a casual glance, the entrance concealed as much by time and settled earth as by deliberate design.

The structure is a souterrain, an underground chamber or passage built from stone and typically associated with early medieval ringforts. Souterrains are found across Ireland and were most likely used for storage, as refuges, or both. This particular example sits within a rath, the Irish term for a roughly circular enclosure defined by an earthen bank and ditch, which would once have enclosed a farmstead or small settlement. The rath here is a visible feature in its own right, and the souterrain occupies its north-western quadrant. Just to the north-east of the underground passage, there is a possible hut site, suggesting that the immediate area once supported a small cluster of associated structures, though the relationship between them has not been fully established.

The site is modest in scale and unexcavated, which means much of what it contains remains out of reach, literally and figuratively. The stone cavity visible through the opening gives only a partial picture of what may lie beyond.