It is not a shaped monolith of the kind that tends to attract attention; it is a fractured slab of local stone, wide and relatively flat, yet substantial enough that the Ordnance Survey mapmakers who passed through in 1838 saw fit to label it simply "Large Stone" on their six-inch map. That plain designation has a certain honesty to it. Whatever ceremonial or territorial significance the stone may once have carried, by the nineteenth century it had become, officially at least, a landmark rather than a mystery.

The stone measures 2.24 metres in height, 1.14 metres in width, and reaches a maximum thickness of 0.57 metres. Standing stones of this kind are found across Ireland and are generally associated with prehistoric activity, though their precise functions remain debated. Some mark boundaries, some are thought to relate to burial sites or astronomical alignments, and others appear to stand in isolation with no surviving context to explain them. This one occupies a particular topographical position, set at the head of a valley where the land tips away sharply below it, a placement that would have made it visible from some distance along the valley floor. The material, shale-grit, is a sedimentary rock common to parts of Wicklow, and the split running through the boulder may be natural, though it gives the stone an air of something interrupted mid-process.