The rock art at Carrowreagh, also known as Craignacally, consists of a single cupmark carved into an exposed outcrop in what archaeologist Van Hoek described as “the next field” from the cemetery. While it might seem modest compared to more elaborate examples of rock art found elsewhere in Ireland, this solitary marking represents thousands of years of human presence in the landscape.

Cupmarks, which are small, circular depressions carved into stone surfaces, are amongst the most common forms of prehistoric rock art found across Ireland and Britain. Dating typically from the Neolithic to Bronze Age periods (roughly 4000 to 1000 BCE), these enigmatic symbols have puzzled archaeologists for generations. Some theories suggest they served ritual or ceremonial purposes, whilst others propose they may have marked territories, tracked astronomical events, or held meanings now lost to time.

The Carrowreagh cupmark, documented by Van Hoek in 1988, forms part of a wider pattern of rock art scattered throughout Donegal and the wider Atlantic fringe of Europe. Its isolated position, set apart from the later Christian graveyard yet within sight of it, hints at the layered history of this landscape; a place where ancient traditions and more recent heritage exist side by side. For those interested in Ireland’s deep past, even this single, weathered cupmark offers a tangible connection to the prehistoric communities who once called this corner of Donegal home.