It is a souterrain, a type of man-made subterranean structure built during the early medieval period in Ireland, typically consisting of one or more dry-stone chambers connected by low, crawlable passages. Their precise purposes are still debated by archaeologists, though they are generally understood to have served as cool storage spaces, places of refuge, or both. Kerry has a notable concentration of them, which is perhaps unsurprising given the density of early medieval settlement across the peninsula landscapes of the southwest.

Beyond its classification and location, the details of this particular souterrain remain obscure. No dimensions, no record of excavation, no associated find-spots, and no account of its condition have made it into the publicly accessible record. It is known, in the sense that it has been identified and assigned a monument record, but the substance of that record has not yet been made available. This places it in an odd category: officially acknowledged, yet effectively invisible to anyone trying to understand what is actually there. For a structure type that was deliberately built to be concealed, there is a quiet irony in that.