This carved stone, decorated with the distinctive ring and cup motif common to Neolithic and Bronze Age sites across the British Isles, was possibly situated within the grounds of Aghangaddy House. The markings consist of circular depressions, or cups, surrounded by concentric rings; a form of abstract art whose meaning continues to puzzle archaeologists and historians alike.

The stone came to wider attention through a black and white photograph taken during a visit by Mabel Colhoun in August 1971, when she was surveying sites on behalf of the Irish Tourist Board. Her documentation proved invaluable, as the exact location and current condition of the stone remain somewhat uncertain. This uncertainty is not uncommon with rock art sites in Ireland, where centuries of agricultural activity, development, and natural weathering have obscured or displaced many carved stones from their original positions.

Rock art like that found at Aghangaddy Glebe represents one of Ireland's most enigmatic archaeological features. These cup and ring marks, which date back approximately 5,000 years, appear on natural rock outcrops and standing stones throughout the country, with particular concentrations in counties Donegal, Kerry, and Cork. While their precise purpose remains unknown, theories range from astronomical markers and territorial boundaries to ritual or ceremonial uses. The Aghangaddy stone joins hundreds of similar sites across Ireland, each one a silent testament to the symbolic world of our prehistoric ancestors.