The rock art recorded at Caherlehillan belongs to a tradition found widely across Atlantic Europe, in which people pecked and ground abstract motifs, most commonly cups and rings, into exposed rock surfaces. What makes this particular site quietly interesting is not what can be seen there, but what cannot. When surveyors visited, the surface of the boulder was entirely concealed beneath a dense covering of furze and other mountain vegetation. The motifs, if they survive at all, remain hidden.

Two rock art sites are recorded at the same coordinates, suggesting either that the cluster was once more visible and could be distinguished, or that some uncertainty crept into the original documentation. What the surveyors could observe was the wider setting: natural fractures in the rock emerging between the furze bushes, and a small upright stone, roughly 75 centimetres high and 20 centimetres wide, pressed against the south-western side of the main boulder. Beside it sits a large, flat-topped stone on a north-facing slope. A field boundary runs nearby on a north-east to south-west axis. These are the kinds of details that suggest the site was once known and perhaps deliberately arranged, though drawing firm conclusions from what is essentially a half-glimpsed scene would be overreaching.

Anyone making their way up to this stretch of mountain heath should be prepared for thick furze, which in Kerry can make even short distances across open ground unexpectedly slow going. The views towards the Ferta River valley to the south-west are clear and wide from this elevation, which may itself be part of why whoever carved the rock chose this spot. Whether the motifs beneath the vegetation are intact is, for now, an open question.