Cup marks are among the most widespread and least understood forms of prehistoric rock art in Ireland; shallow circular depressions pecked into stone, almost certainly during the Bronze Age, their purpose remains genuinely open. This particular boulder, measuring 1.2 metres by 1 metre and flecked with quartz inclusions, also bears a number of smaller pits scattered between the cups, adding to the sense that the carving was considered rather than casual.

What makes this stone quietly complicated is that nobody knows exactly where it started out. It is believed to have been moved at some point from somewhere near a second rock art site located approximately 100 metres to the north, though the precise original location has not been established. That nearby site, recorded separately, suggests the area around Drummin was meaningful to whoever was doing this carving, possibly across generations, possibly for reasons bound up with the landscape itself. The Wicklow Rock Art Project, based in the School of Archaeology at University College Dublin and directed by Dr. Clíodhna Ní Lionáin, has documented the boulder using photogrammetry, a technique that builds precise three-dimensional digital models from overlapping photographs, allowing researchers to study the depth and distribution of the marks in detail without further handling the stone.