What makes it worth pausing over is the hollow worn into its surface, a circular depression barely eight centimetres across and five deep, and the name a local farmer still uses for it: St. Patrick's knee stone. The implication is that the indentation marks the spot where the saint knelt in prayer, a folk explanation of the kind attached to bullaun stones across Ireland. Bullauns are boulders or outcrops bearing one or more cup-shaped hollows, most likely formed by grinding or pounding, and they are associated almost universally with early Christian sites, holy wells, and patterns of local devotion.

This particular stone is a conglomerate boulder with quartz inclusions, measuring roughly 0.75 metres by 0.72 metres and standing about half a metre high. At some point it was shifted a few metres northward from its original position in the open field and set into the southern field boundary, where it now stands alongside a stream some seventy metres to the north. A second bullaun stone sits roughly ninety metres to the east, suggesting that whatever ritual or devotional landscape once existed here was not organised around a single point. The move, modest as it sounds, is significant: bullaun stones were traditionally thought to carry consequences if disturbed, and the fact that this one was relocated anyway speaks to the ordinary pressures of land use over generations.