Lying among field clearance stones, it bears a single cup mark surrounded by two concentric rings, alongside three smaller plain cups. Whether it ended up here by accident or has always occupied this spot is genuinely unclear; it sits just two metres from a field boundary, close enough to make you wonder whether it was shifted at some point during land improvement, or whether the walls and clearance piles simply accumulated around it over generations.

Cup and ring marks are among the most widespread yet least understood forms of prehistoric art found across the Atlantic fringe of Europe. Carved, typically, by pecking into exposed rock surfaces, they appear in Ireland from roughly the Neolithic through the Bronze Age, though assigning a precise date to any individual example is notoriously difficult without supporting archaeological context. The Coomasaharn example is modest in scale, with its single ringed cup and cluster of smaller cups, but it follows a pattern recognised at sites across Kerry and beyond. It was identified as rock art by George Currie in 2018, which means it is a relatively recent addition to the known corpus and has not yet attracted the kind of detailed study that older, more famous examples have received.