It is not. The mound, roughly horseshoe-shaped and standing just 0.65 metres high, is composed of burnt material, the accumulated debris of repeated firings carried out here perhaps three or four thousand years ago. That distinctive shape, open to the north and measuring around 6.6 metres north to south, is the calling card of a fulacht fia.

A fulacht fia is a type of Bronze Age cooking site found in extraordinary numbers across Ireland, with Kerry alone containing hundreds of recorded examples. The basic method involved heating stones in a fire, then dropping them into a water-filled trough to bring it to a boil. Over time, the thermally shattered and blackened stones were raked out and piled to the sides, gradually building up the characteristic horseshoe mound around the trough. The site at Drombohilly follows this pattern closely, positioned on the south bank of a stream, which would have provided the reliable water supply the process required. The opening of the mound faces toward the stream, the practical logic of the layout still legible in the landscape. A second possible example of the same type lies approximately 50 metres to the north, suggesting this stretch of hillside saw repeated or prolonged use during prehistory.