The structure, known only through local memory rather than excavation or survey, is said to consist of two chambers connected by a creep, the narrow crawl-through passage that links sections of these underground stone-lined tunnels. Souterrains were built during the early medieval period, typically within or beneath a rath, a circular enclosure defined by earthen banks that served as a farmstead or settlement. They were used variously for storage, refuge, or both. This one sits inside just such a rath, and while the enclosing earthworks have themselves been partly levelled by agricultural activity, the underground structure, if intact, may yet survive below the surface undisturbed.

The souterrain's existence rests entirely on local oral tradition rather than any physical investigation. No excavation has confirmed the layout, and at ground level there is nothing to see; no depression, no hollow, no exposed stonework. What makes this quietly compelling is precisely that absence. The rath itself has been reduced, its profile smoothed by decades or centuries of land use, yet the knowledge of what might lie beneath it has persisted in the community long enough to be recorded. That kind of continuity, a place remembered even after it becomes invisible, is its own form of archaeology.