These structures were built by hand, typically from dry-stone walling and large capstones, and their precise purposes have been debated for generations. Depending on the site, they may have served as refuges, as cool stores for food, or as places to shelter livestock and valuables during raids. What makes the one at Garraundarragh quietly compelling is how thoroughly it has slipped from common knowledge.

Souterrains are found across Ireland in their hundreds, many of them associated with ringforts or early ecclesiastical settlements, and Kerry has a notable concentration of them. The county's landscape, with its combination of accessible stone and a long tradition of defended farmstead settlement, made it fertile ground for this kind of construction from roughly the seventh century onwards. The souterrain at Garraundarragh belongs to that broader pattern, though the particular details of its dimensions, condition, and any associated surface features remain, for now, a matter for specialist investigation rather than casual record.