A cashel is a stone-walled ringfort, the roughly circular enclosures that once served as farmsteads for early medieval Irish families, and this one, measuring approximately 28.7 metres in diameter, has been absorbed so completely into the agricultural landscape that no visible surface trace survives. What makes it quietly arresting is not what remains but what is recorded as having been there: not just the stone enclosure itself, but a large L-shaped souterrain within the interior.

A souterrain is an underground passage or chamber, typically built from stone, associated with early medieval settlement sites across Ireland. Their precise function is still debated, though storage, refuge, and ventilation have all been proposed. The L-shaped example recorded here was noted by McCaffrey in 1952, who catalogued the site as a circular stone fort in what appears to have been a systematic regional survey of the area. At that point, presumably, something was still visible or recoverable. In the decades since, continued tillage has erased whatever surface features remained. The souterrain, if it survives at all, would lie underground, unmarked and inaccessible beneath whatever crop currently occupies the field.