This lost stone, measuring roughly 2 feet 6 inches square, bore an impressive collection of between 25 and 30 cupmarks; small, circular depressions carefully pecked into its surface by ancient hands. According to local historian M. R. Colhoun, a second stone with similar markings once stood nearby, suggesting this area held particular significance for the people who created these enigmatic symbols thousands of years ago.

Cupmarked stones like these are scattered across Ireland and Britain, representing one of the most widespread yet mysterious forms of prehistoric rock art. The circular hollows, typically ranging from a few centimetres to several inches across, were laboriously carved using stone tools, though their exact purpose remains a subject of scholarly debate. Some researchers suggest they may have served ritual or ceremonial functions, whilst others propose they could have been territorial markers, star maps, or even primitive counting systems.

The area around Straid, characterised by rough pasture land, fits the typical setting where such prehistoric monuments are often found throughout Donegal. The county boasts one of Ireland's richest concentrations of rock art, with hundreds of decorated stones documented in the Archaeological Survey of County Donegal. Whilst this particular stone has been lost, its memory persists through archaeological records, serving as a reminder of the deep human history etched into Ireland's landscape and the fragility of these ancient monuments in the face of agricultural development and the passage of time.