What was once a fulacht fia, a type of ancient outdoor cooking place typically identified by a horseshoe-shaped mound of fire-cracked stone and charcoal built up around a water-filled trough, now survives only as a barely perceptible grass-covered rise in the ground. Ireland has thousands of these sites, dating mostly from the Bronze Age, but this one has been further diminished by modern land improvement work.

The site was levelled around 1969 during reclamation of the surrounding pasture, which accounts for its near-invisibility today. What little remains is the scorched, burnt material that gives fulachtaí fia their characteristic dark, crumbly composition, the accumulated debris of repeated episodes of heating stones in fire and plunging them into water. A second fulacht fia lies close by to the east, suggesting that this stretch of Caherbarnagh was used with some regularity, perhaps over generations, by people who found the local water supply and fuel sources suited to the purpose.