At the north-western end of Salrock graveyard in Foher, County Galway, there was once a holy well known correctly as Tobar Salroc, a place of the kind that once punctuated the Irish landscape with quiet religious significance. Holy wells were typically natural springs or water sources adopted into Christian and pre-Christian devotional practice, often associated with patron saints and local patterns or pilgrimage gatherings. This one has left nothing behind. No stone surround, no trickle of water, no votive offerings tied to a nearby bush. The well survives only as a cartographic ghost.

The first edition of the Ordnance Survey six-inch map, which covered Ireland in remarkable detail from the 1830s onwards, recorded Tobar Salroc as a present and presumably functioning feature. By the time the second edition was produced, with revisions published by 1896, the mapmakers had quietly amended their record. The two words "Site of" were appended, a small but telling editorial shift that means surveyors returned to find nothing where something had been. What happened in the intervening decades is not known. Wells could fall out of use as communities changed, as land was drained or altered, or simply as devotional patterns faded. Whatever the cause, the well had disappeared entirely, and no visible surface trace has been recorded since.