Tucked into the north-western quadrant of a ringfort, this is a souterrain, an underground stone-lined passage or chamber typically associated with early medieval settlement in Ireland, used variously for storage, refuge, or ventilation of living spaces above ground. What makes this one quietly compelling is its state of suspension: the entrance reveals enough to confirm the quality of the construction, with stone-built walls and stone lintels still visible, but the passage itself is inaccessible.

The most detailed account of the interior comes from a 1937 record by Broker, who noted two or three steps descending into the chamber below. That modest description is now all that documents what the space looks like inside, since the entrance has since become too blocked to enter. The souterrain sits within a ringfort, a type of enclosed farmstead common across early medieval Ireland, usually consisting of a circular bank and ditch surrounding a domestic area. The pairing of souterrain and ringfort is typical of the period, the underground chamber serving the household above, but the specific history of this particular site, who built it, when exactly, and how it was used, remains unrecorded.