Just north of a location known as DON 3H, six cupmarks have been carved into the stone surface, their simple circular depressions representing one of humanity's oldest forms of artistic expression. These prehistoric carvings, documented by researcher Van Hoek in 1988, are part of a broader tradition of rock art that spans across Ireland and much of Atlantic Europe.

Cupmarks, or cup and ring marks as they're sometimes called when accompanied by concentric circles, are amongst the most enigmatic features of prehistoric Ireland. Dating primarily from the Neolithic and Bronze Age periods, roughly 4000 to 1000 BCE, these carved hollows appear on natural rock outcrops, standing stones, and burial monuments throughout the country. Their purpose remains a mystery; theories range from territorial markers and star maps to ritual sites for offerings or rainwater collection for ceremonial purposes.

The Donegal examples form part of a particularly rich concentration of rock art in the northwest of Ireland, where the landscape seems to have held special significance for prehistoric communities. While individually these six cupmarks might appear unremarkable, they connect this quiet corner of Donegal to a vast network of similar sites stretching from Scotland to Iberia, testament to shared cultural practices that transcended the boundaries of ancient tribal territories.