It sits filled with water, as it apparently always has. To pass it without knowing its name would be easy; to know its name is to see it differently entirely.

A bullaun stone is a rock, either a loose boulder or in situ bedrock, into which one or more cup-shaped depressions have been ground, often over centuries of ritual or practical use. This particular hollow goes by the name Tobar Dhonnacha, meaning Donnacha's Well, and locally it has long been regarded not as a geological curiosity but as a holy well. The practice of "rounds" was once observed here, a devotional ritual common across rural Ireland in which a pilgrim circuits a sacred site a set number of times, often reciting prayers at particular stopping points. The coins that were found sitting in the hollow and scattered on the ground beside it suggest the tradition persisted well into living memory, even if the formal rounds had fallen away. Whether the Donnacha commemorated in the name was a saint, a local holy man, or simply a figure absorbed into folk memory is not recorded.