It has a name, a map reference, and a monument number, but the details that would ordinarily accompany such a listing, its age, its form, whether it is a standing stone cross or a carved slab or something else entirely, remain undigitised and out of reach for the ordinary curious visitor.

The name Glendaduff derives from the Irish, most likely containing the element dubh, meaning black or dark, and gleann, a valley, suggesting a place defined by its landscape rather than any human monument placed within it. Crosses recorded in rural Mayo range considerably in type and origin. Some are early medieval, associated with monastic boundaries or pilgrimage routes; others are post-medieval wayside markers or grave slabs, erected to sanctify a particular spot or commemorate a death. Without further detail it is impossible to say which category this example falls into, or indeed how much of the original structure survives.