What survives is a slight depression in the earth, sitting to the east of centre within a ringfort, and that subtle hollow may be all that remains of a souterrain, an underground stone-lined tunnel or chamber built during the early medieval period, typically used for storage, refuge, or both. The ground has simply closed over it.

The souterrain sits within a ringfort, a type of enclosed farmstead common across Ireland between roughly the fifth and twelfth centuries, usually defined by one or more circular earthen banks. Souterrains were frequently constructed inside these enclosures, and their collapse over centuries is not unusual; the roofing lintels shift, the earth above settles, and what was once a navigable passage becomes a dip in the ground. Here, that depression is the only visible clue that something once lay beneath the surface.