A souterrain is an underground stone-lined passage or chamber, typically associated with early medieval settlement in Ireland, often used for storage, refuge, or both. This one, however, is closed up, leaves no visible mark on the surface, and offers the modern visitor nothing whatsoever to look at. It is, in the most literal sense, a place that has vanished.

The only real documentation comes from a 1934 reference by Bowman, who noted the souterrain as existing on land then belonging to a J. Fleming. Even at that point, the record carried an oddly deflating detail: there was no sign of a fort nearby. Souterrains in Ireland are most commonly found in association with ringforts, the circular enclosed settlements that dot the Irish countryside from the early medieval period, and their presence without one is quietly unusual. Whether the associated settlement has simply disappeared without trace, or whether the souterrain served some other function in this landscape, is a question the site itself can no longer answer. At some point after 1934 the entrance was closed, and the structure has since retreated entirely from view.