This rectangular slab, measuring 2 feet by 2 feet 6 inches, bears the marks of ancient inhabitants who carved twelve large cup marks into its surface; one particularly notable marking features a concentric circle around it. The stone also displays numerous tiny depressions scattered across its face, and according to local tradition, one section resembles the footprint of a child, though this interpretation remains part of the area's folklore rather than archaeological consensus.

The stone's position in what is now cultivated farmland offers commanding views westward over Lough Swilly, suggesting its placement was deliberate rather than accidental. Cup marked stones like this one are found throughout Ireland and Britain, typically dating from the Neolithic to Bronze Age periods. These enigmatic carvings have puzzled archaeologists for generations; theories about their purpose range from territorial markers and star maps to ritual sites, though their true meaning remains lost to time.

While the stone is no longer visible above ground, its documentation in the Archaeological Survey of County Donegal ensures its place in the historical record. The survey, compiled by Brian Lacey and his team in 1983, provides one of the most comprehensive catalogues of Donegal's archaeological heritage, recording everything from Mesolithic sites to 17th century structures. This particular stone represents just one of many examples of rock art found throughout the county, each offering a tangible connection to the prehistoric peoples who once inhabited this corner of Ireland.