That collapse is now the most visible sign of a souterrain, an underground stone-lined passage or chamber typically associated with early medieval settlement in Ireland, used variously for storage, refuge, or both. The site is not marked by any monument or signpost. Its current indicator is a clump of thistles, the kind of botanical clue that fieldworkers and local people have long learned to read.

The souterrain sits in pasture roughly seventy metres south-east of a ringfort, which is precisely where you might expect to find one. These underground structures were commonly built in association with ringforts, the circular enclosed farmsteads that dot the Irish countryside and date largely from the early medieval period. The spatial relationship here is typical: the souterrain would have been accessible from within or close to the enclosed settlement, functioning as an annex of sorts beneath the ground. A second possible souterrain has been identified approximately sixty metres to the east, suggesting that the area may conceal more than one such feature, though the evidence for the second remains tentative.