The souterrain in question, a type of underground stone-built passage or chamber typically associated with early medieval ringforts, has left no visible surface trace whatsoever. It exists, for now, as inherited knowledge rather than physical evidence.

The rath at Dungory is a ringfort, the kind of roughly circular enclosure that served as a farmstead and defensive boundary in early medieval Ireland. Within its interior, according to tradition, a souterrain was constructed, likely to serve as a place of refuge, cool storage, or escape during times of threat. Such underground passages were commonly built by the same communities that raised the enclosing earthworks above them. Whether this particular one survives intact beneath the soil, has collapsed, or was perhaps misremembered across generations, nobody can currently say. The absence of surface evidence does not rule out its existence, but it does mean the claim rests entirely on oral tradition passed down through the local community rather than on excavation or survey confirmation.