Across its surface, someone has left at least twenty-three cupmarks, the largest reaching just over twenty centimetres in diameter. Cupmarks are shallow, roughly circular depressions pecked into stone, and they appear across prehistoric Europe with a frequency that suggests deep purpose, though precisely what that purpose was remains genuinely unresolved. They turn up on burial monuments, on exposed outcrops, on standing stones, and in places that seem to carry no obvious ceremonial function at all. That unresolved quality is part of what makes them compelling.

The association with Kilmoe graveyard places this outcrop within a landscape of long, layered use. The graveyard itself preserves the name of an early medieval parish, and the proximity of a prehistoric marked stone to a site of Christian burial is not unusual in the Irish west, where sacred or significant ground tended to attract generation after generation of ritual attention. The rock, now overgrown, would once have been a more conspicuous feature of this corner of west Cork, the marks on it deliberate and presumably meaningful to whoever made them, most likely during the Bronze Age, though cupmarks are notoriously difficult to date with precision.