The site described here is a horseshoe-shaped mound of burnt and fire-cracked material, measuring roughly 11.8 metres long, 8.9 metres wide, and half a metre high. That distinctive shape is typical of a fulacht fia, the remains of an ancient outdoor cooking place, where stones were heated in a fire and then dropped into a water-filled trough to bring it to the boil. Over repeated use, the shattered, heat-spent stones were raked out and piled to the sides, gradually forming the characteristic curved mound that survives today.

Fulachtaí fia are among the most common prehistoric monument types in Ireland, found in their thousands, and most are thought to date from the Bronze Age, broadly spanning roughly 2000 to 500 BC. They tend to appear near water sources and in low-lying or marshy ground, conditions that would have made it straightforward to keep a trough filled. What makes Gortavehy quietly interesting is the proximity of a second example just a few paces away. Whether the two were in use at the same time, or represent separate episodes of activity centuries apart, is the kind of question the visible archaeology alone cannot answer.