The slab itself is modest, roughly 36 centimetres by 25 centimetres and only 3 centimetres thick, and the Latin cross incised on its surface measures just 25 centimetres high and 20 wide. What makes it unusual is not its age or craftsmanship but its method: small stones left beside the slab are picked up by visitors and used to scratch the cross afresh, each person adding their own mark to an image that has been accumulating through repeated, deliberate contact.

The slab sits within a wider devotional landscape that includes a penitential cairn nearby. A penitential cairn is a mound of stones built up by successive pilgrims, each of whom typically adds a stone as part of a prescribed round of prayer or penance, and the presence of one here suggests this site was used for structured religious practice rather than casual veneration. The act of incising a cross with a loose stone belongs to the same tradition: the physical effort of marking stone, however slight, carries devotional weight. The holy well at the centre of this complex would have drawn pilgrims for reasons of healing or intercession, as was common across Ireland, and the cross-inscribed slab seems to have grown out of that ongoing traffic, shaped by many hands rather than commissioned or carved by one.