It is, in fact, a fulacht fia, one of the most common yet persistently enigmatic monument types in the Irish archaeological landscape. These horseshoe-shaped mounds are the burnt and broken residue of repeated heating episodes, the scattered debris of a process that involved cracking stones in fire and plunging them into water-filled troughs, causing rapid boiling. What they were actually used for, whether cooking, brewing, textile processing, or something else entirely, has been debated by archaeologists for decades without any firm consensus.

Fulachtaí fia as a category date broadly to the Bronze Age, roughly 1500 to 500 BC, though individual sites can be difficult to date without excavation. The one at Anaharlick follows a pattern seen across Ireland, where these monuments gravitate toward water sources. Here, a well sits at the base of the rock outcrop to the east, the kind of reliable, year-round water supply that would have made the site practical for whatever activity was being carried out. The elevated position on a hillock is slightly less typical, since many fulachtaí fia sit in low-lying, boggy ground, and the choice of a rocky outcrop gives this example a modest distinctiveness within its type.