It was recorded, described in careful detail, and then, on subsequent visits, simply was not there. Not stolen, not destroyed, just unlocatable among the many loose boulders scattered across the upland heath. That ambiguity is itself a kind of marker of how prehistoric rock art tends to exist in the landscape: significant enough to have been carved, easy enough to lose.

The boulder, roughly two metres by 1.9 metres, was an earthfast stone, meaning it was set firmly into the ground rather than lying loose, and its upper surface had been buried under peat until that layer was stripped away approximately thirty years before it was formally documented. What emerged was a stepped, fissured surface carrying an unusually varied programme of carving. A long groove running north to south divides the decorated area, bifurcating at its southern end and incorporating two natural solution pits along its length. To one side are seven simple cupmarks, an arc of a circle, and patches of pocking. To the other are two large cup-and-ring motifs, each consisting of a central cupmark surrounded by three concentric rings, with a radial groove cut from the cup outward through a gap in the rings; one of those radial grooves curves rather than runs straight. A further pair of cup-and-two-ring designs with radial grooves appears nearby, along with five more cupmarks, meandering grooves threading between the motifs, and lighter areas of pocking across the surface. Cup-and-ring marks are among the most widespread forms of prehistoric rock art in Atlantic Europe, found from Ireland and Scotland to Galicia, though their precise meaning or function remains genuinely unknown. The Derrynablaha area is noted for concentrations of such carvings, and a related rock art site was recorded roughly fifteen metres upslope from this one.

The site sits in open heath pasture with long views southward down the Kealduff River valley and a glimpse of Lough Brin to the east, with mountain rising to the west. Recent fieldwork has failed to relocate the boulder despite searching in and around the recorded coordinates, and other rock art sites in the vicinity were found some 83 metres from where they were expected. Anyone hoping to find this particular stone should go prepared for the possibility that the peat may have reclaimed it, or that it simply blends back into the scatter of surrounding rock.