A souterrain is an underground stone-lined passage or chamber, typically associated with early medieval settlement in Ireland, used variously for storage, refuge, or ventilation of nearby structures. That this one is known only through local tradition rather than formal excavation gives it a particular quality, somewhere between archaeology and rumour.

The hut itself sits one field south of a neighbouring recorded site, and measures roughly 4.2 metres in diameter. It is defined by a circular arrangement of intermittent upright stones with a slight external bank, the kind of modest structural trace that can easily read as a natural feature to the unprepared eye. The buried souterrain is said to lie within the interior of this enclosure. The site is documented in A. O'Sullivan and J. Sheehan's archaeological survey of the Iveragh Peninsula, published by Cork University Press in 1996, which remains the primary scholarly reference for early remains across this part of south Kerry.

The Iveragh Peninsula, best known today for the Ring of Kerry, carries a dense and largely unannounced archaeological landscape beneath its more famous scenery. Sites like this one, small, ambiguous, and unexcavated, are scattered across the uplands and field systems of the region. The infilled nature of the souterrain means there is little visible at ground level beyond the stone setting of the hut, but that setting alone, low and circular against the field, carries the unmistakable geometry of early human habitation.