The well's diameter is just over two metres, modest enough to overlook if you did not know to look. Its correct Irish name is Tobar Cuanach, though it has long been anglicised to the phonetic approximation Tober Coonagh.

Holy wells, known in Irish as tobair, are among the most enduring features of the Irish landscape, often predating Christianity and later absorbed into local devotional practice. They are typically associated with a patron saint, a pattern day, or a tradition of rounds, the ritual circuiting of a sacred site while reciting prayers. What is notable about Tobar Cuanach is how little separates it from the dead. Its placement at the northern end of a graveyard is not incidental; the pairing of well and burial ground is a recurring arrangement across Ireland, reflecting older ideas about water, sanctity, and the boundary between the living and the departed. The simple drystone enclosure, built without mortar, would have been constructed and maintained by local hands over generations, its circular form a shape with deep roots in vernacular sacred architecture.