This quartzite boulder, measuring 1.7 metres long, 1.2 metres wide and just 27 centimetres thick, offers sweeping views of the Knockbrack Hills to the north and northeast, whilst Trawbreaga Bay stretches out to the west. The location feels remote and windswept, much as it must have done when ancient hands first carved these mysterious symbols into the stone.

The artwork itself is strikingly precise; a single cup mark sits at the centre, surrounded by ten perfectly concentric circles. The outermost ring spans an impressive 83 centimetres in diameter, creating a target-like pattern that would have required considerable skill and patience to execute. Two grooves extend outward from the central cup mark, radiating through all the circles at an angle of approximately 160 degrees to each other, like rays from a stylised sun or perhaps marking some long-forgotten astronomical alignment.

Dating rock art is notoriously difficult, but similar examples across Ireland and Scotland suggest this boulder could be anywhere from 3,000 to 5,000 years old, placing it somewhere in the Neolithic or Bronze Age. The meaning behind these intricate carvings remains elusive; they might have marked territory, served ritual purposes, or acted as waymarkers in the landscape. Whatever their original purpose, these enigmatic symbols continue to captivate visitors who make the journey to this quiet corner of Donegal, where ancient artistry meets the wild Atlantic landscape.