Marked as Tobercronan on both the 1838 and 1916 editions of the six-inch Ordnance Survey maps, the site sits on marshy ground just west of a small stream in Newtown, County Galway. When visited in recent times, there was nothing to see: no carved stonework, no rag-offerings tied to a nearby branch, no trace of the ritual attention that once defined such places. The name, however, is the thing.

A tobar is simply a well or water source in Irish, and holy wells, scattered in their thousands across Ireland, were places of veneration associated with particular saints, visited on pattern days, and credited with healing properties. This one carries the name of St Cronan, and it lies approximately ninety metres south-east of an early ecclesiastical enclosure, the kind of site, typically defined by a curving boundary bank or ditch, that marks the footprint of an early medieval Christian settlement. The pairing of a saint's-name well with a nearby ecclesiastical enclosure is a recognisable pattern: wells of this type were often focal points for devotion connected to a local monastic or church site, gathering significance from both the sanctity of the water and the proximity of sacred ground. Whatever structures or markers may once have distinguished Tobercronan from any other patch of boggy ground have long since disappeared, and the continuity of the name across two centuries of mapping is now the clearest evidence that this place was once considered more than ordinary.