A souterrain is an underground stone-lined passage or chamber, typically constructed during the early medieval period in Ireland, and most likely used for cold storage, refuge, or both. What makes this particular example quietly compelling is not what survives above ground, but what was confirmed just long enough to be recorded before it disappeared again from view.

Local information, relayed by R. M. Cleary, described three chambers, all of stone construction, before the site was backfilled at the time of inspection. That act of infilling is not unusual; souterrains are sometimes closed up for safety reasons, or because the land above them is in active use. What adds a further layer of interest is the presence of a second souterrain roughly 200 metres to the east. Two such structures in such proximity suggests this was not an isolated feature in the landscape but part of a more densely occupied early medieval settlement, now otherwise invisible at the surface.