The chamber is a souterrain, a type of stone-lined underground passage or room constructed during the early medieval period, typically associated with ringforts and used variously for storage, refuge, or concealment. What makes this one quietly compelling is not what survives, but what was once claimed about it.

When a researcher named Broker recorded the site in 1937, the local understanding was that this souterrain connected underground with two neighbouring properties: Lios na Saorsean, known locally as Len Leader's, and a holding belonging to a Mrs. O'Leary at Lios an Uisge. The idea of a subterranean network threading between farmsteads was apparently credible enough to pass into local tradition, though Broker noted with some scepticism that very wet land lay between these points, complicating any such connection. Whether the tunnels ever linked up, or whether folk memory had woven several separate structures into a single dramatic narrative, is not recorded. What remains is a ringfort, a flag, and a community's memory of what might lie beneath.

Today there is no visible surface trace of the souterrain, so there is little to see in the conventional sense. The interest lies in the layering of the landscape itself: a ringfort of early medieval origin, a chamber beneath it, and a story, recorded in 1937, that reaches outward to neighbouring raths and the people whose names were still attached to them within living memory at that time.