These low, horseshoe-shaped mounds, typically found near a water source, are the accumulated debris of repeated prehistoric cooking, or so the dominant theory goes. The process involved heating stones in a fire and dropping them into a water-filled trough until the water boiled, then using that heat to cook meat. Over time, the cracked and spent stones were piled to one side, building up the distinctive mound that survives today. The example recorded near Cashel in County Mayo is one such site, quiet and unassuming in the west Connacht landscape.

Fulachtaí fia date mostly to the Bronze Age, broadly spanning from around 2000 BC to 500 BC, though some sites show evidence of earlier or later use. The name itself is old Irish and is sometimes translated loosely as "cooking place of the deer," though scholars debate both the etymology and the function. Experimental archaeology has shown that the boiling-trough method works efficiently, lending credibility to the cooking interpretation, but some researchers have proposed alternatives including brewing, textile processing, or bathing. The Cashel area of Mayo sits in a landscape with deep prehistoric occupation, and a fulacht fia here would fit a broader pattern of Bronze Age activity across the region, where wetlands, bog margins, and stream sides were favoured locations for this type of monument.

Because the source material for this particular site is limited, specific details about its dimensions, condition, or precise location within the Cashel townland are not available here. What can be said is that these monuments are easy to walk past without recognising them, often appearing as nothing more than a gentle rise in a field or a low arc of darker, stonier ground at the edge of a wet area.