What looks to a passing eye like a natural hump in the ground is in fact a mound of heat-shattered stones and charcoal-enriched soil, the accumulated debris of repeated ancient use. The crescent shape is characteristic: a fulacht fia, broadly understood as a Bronze Age cooking site, typically consists of a horseshoe-shaped mound of fire-cracked rock surrounding a trough. Stones would have been heated in a fire, then dropped into a water-filled pit to bring it to a boil, and the discarded, fractured stones gradually built up into exactly this kind of curved bank.

The mound here measures roughly seven metres in both directions and rises only about half a metre above the surrounding ground, which is consistent with a site that has been weathered and settled over millennia. The two arms of the crescent are separated by a river-worn hollow, and traces of burnt material are still visible within it, suggesting the hollow preserves something of the original trough position. The presence of river-worn stones points to a watercourse nearby, which would have been essential to the site's function. The mound sits within a network of field boundaries on a terrace of the slope, meaning later agricultural activity has accumulated around it without entirely obscuring it.