No hollow, no lintel stone, no telltale depression marks the spot. The only evidence for this underground passage is local tradition, a thread of oral knowledge that has outlasted whatever physical remains once made the structure visible.

Souterrains are stone-lined underground chambers and tunnels, typically associated with early medieval settlement in Ireland, built for storage, refuge, or both. They are found across the country in considerable numbers, and the Iveragh Peninsula in south Kerry has its share. At Raheens, though, the record amounts to little more than a memory. A. O'Sullivan and J. Sheehan, whose archaeological survey of the Iveragh Peninsula was published by Cork University Press in 1996, noted the site with the careful qualification that no surface trace survives. It is, in other words, a place that exists primarily because people once said it did.