These subterranean structures, typically associated with ringforts, were used for storage, refuge, or both, and were constructed with enough skill that many have survived intact beneath Irish farmland for over a thousand years. Here, the evidence is quieter: a depression in the earth, vegetation creeping over what might once have been a roofed tunnel.

The ringfort itself, recorded separately, provides the broader context. Ringforts were the farmsteads of early medieval Ireland, enclosed by one or more earthen banks and ditches, and it was common practice to build a souterrain within or immediately beside them. The placement of this potential souterrain directly to the west of the fort's centre fits that pattern. Whether the hollow marks a genuine collapse of underground stonework or simply a natural feature of the ground has not been confirmed with certainty, and the site retains that particular ambiguity that attaches to so many half-legible traces in the Irish landscape.