The word used was simply "Cave", marked within the bounds of a rath, the type of circular earthen enclosure built during the early medieval period, typically as a farmstead and status marker. By the time later surveyors came through, the label had vanished, and what lies beneath the surface has never been fully investigated.

What remains visible today is a shallow depression running roughly ten metres from north-east to south-west, sitting in the north-east quadrant of the rath interior. This is consistent with a collapsed souterrain, an underground stone-lined passage or chamber that was commonly built in association with raths and used for storage or, in times of danger, concealment. A few large stones scattered on the surface may be displaced roof lintels, the flat capstones that would once have sealed the structure from above. Without excavation, little more can be said with certainty, but the dimensions and location fit the pattern well enough that the identification seems reasonable.