This subtle earthwork, positioned much lower down the hillslope than its neighbour DON 35, might easily be overlooked by casual walkers, but closer inspection reveals something rather special. Along this ridge, several rock outcrops break through the grass, and one smooth sheet of stone near the eastern end bears the handiwork of prehistoric artists.

The rock surface, which slopes gently at 9 to 11 degrees towards the southwest, displays at least eight cup marks; small, circular depressions carefully pecked into the stone thousands of years ago. These aren't just simple hollows, though. Three of the cups show faint traces of partial rings encircling them, with some connected by shallow grooves worn into the rock face. Near the northern end of the panel, one cup mark stands out with two complete rings surrounding it, though centuries of Irish weather have softened their once-sharp edges.

This decorated stone was documented by researcher Van Hoek in 1987, who meticulously recorded these ancient markings as part of a wider survey of Donegal's prehistoric rock art. The cup and ring marks found here are typical of Atlantic rock art, a tradition that flourished across Ireland, Scotland, and northern England during the Neolithic and Bronze Age periods. While their exact meaning remains elusive, these enigmatic symbols offer a tangible connection to the communities who once farmed these hills and left their mark on the landscape in stone.