This is a fulacht fiadh, a type of prehistoric cooking site found in large numbers across Ireland, typically Bronze Age in date, and almost always positioned close to a water source. The theory most widely accepted today is that stones were heated in a nearby fire, then dropped into a water-filled trough to bring it rapidly to the boil, cooking meat or perhaps serving other purposes entirely. The mound that remains is essentially the accumulated waste of that process: thousands of fire-shattered fragments, cracked and discarded each time they were used.

The Creeveen example is a well-preserved instance of the type. Horseshoe-shaped in plan, it measures roughly seven metres north to south and eight and a half metres east to west, standing 1.4 metres high. On its northern side, facing the stream, a sloping rectangular depression survives, approximately 3.4 metres long, 1.3 metres wide, and 0.45 metres deep. This hollow is the ghost of the trough itself, the functional heart of the whole operation. The mound's composition tells its own story: small, fire-shattered stones packed into blackened earth with a high charcoal content, the residue of repeated heating and cooling over what may have been a very long period of use. The site lies around 150 metres south-west of a larger enclosure in the same townland, a proximity that hints at a wider pattern of prehistoric activity in this part of the Iveragh Peninsula.