This is a cashel, the Irish term for a ringfort built from stone rather than earth and timber, and it measures approximately 25.3 metres north to south and 27 metres east to west. What makes it worth pausing over is not just its age but its layered survival: the western stretch of the enclosing wall still stands at 1.3 metres high and 2 metres wide, retaining its original stone facing, while the south-eastern section has been rebuilt at some point, suggesting the site has been worked around, maintained, or modified across different periods.

The most quietly extraordinary feature lies beneath the surface. Inside the enclosure there is a souterrain, an underground passage or chamber constructed from stone, typically used in early medieval Ireland for storage, refuge, or both. Souterrains are found across Ireland in association with ringforts and cashels, but their presence is not universal, and their construction required considerable effort. The combination of a well-preserved western wall section and a subterranean chamber in the interior gives this particular cashel a density of surviving detail that many comparable sites no longer possess, where collapse or agricultural disturbance has reduced the archaeology to little more than a grassy ring.