The message has been sealed away from public view for decades, not by time or neglect but by a deliberate safety closure, and so the ogham inscription at Cahernead sits, unread by casual visitors, under two large covering stones in the north-eastern corner of an ancient enclosure.

The place takes its name from the Irish Cathair Néid, meaning the stonefort of Néid, a personal name. The enclosure itself is a univallate cahir, a single-walled stone fort of a type common in Kerry, occupying the top of a limestone outcrop with clear sightlines across the surrounding land. The earthworks around it, scattered depressions, circular platforms, and mounds, suggest it was once a substantial settlement rather than a simple refuge. The souterrain beneath it, a type of underground passage or chamber used in early medieval Ireland for storage or shelter, came to light not through excavation but through quarrying, and the circumstances were recorded in the Kerry Field Notes on 6 October 1945. Workers discovered a chamber roughly six feet high and five feet wide, partly shaped by the natural rock and partly built. A large capping stone ran across the centre of the roof, and when they looked more closely they found ogham writing on it. Ogham is an early medieval script, used roughly from the fourth to the seventh centuries, in which letters are represented by groups of strokes cut along a central line, typically along the edge of a stone. The entire souterrain system was subsequently closed up on safety grounds and has not been accessible since.