Tobermoyhir appears on the Ordnance Survey six-inch maps of both 1839 and 1924, each time rendered in the distinctive gothic lettering that surveyors conventionally reserved for antiquities, holy wells, and places of some recognised significance. And yet, by the time anyone looked closely, the well could not be positively identified on the ground, and no record survives of it ever having been venerated.

The name itself, Tobermoyhir, follows the familiar Irish pattern of tobar, meaning well, combined with a second element that remains unexplained. The site lies along the northern bank of a small stream that runs roughly west to east through a densely overgrown ravine, the kind of sheltered, tangled ground where such features tend to survive or disappear entirely depending on how the vegetation takes hold. That two generations of Ordnance Survey mapmakers, decades apart, both saw fit to mark and name the spot in gothic script suggests it was known locally and considered worthy of record. Whether the well was ever a focus of local devotion, the kind of pattern-day gathering or cure-seeking that characterised venerated holy wells across Ireland, is simply not known. No such tradition has been documented here.