It runs roughly north to south for approximately 55 metres between two riverbanks on an east-facing slope above the valley of the Dromoghty River, and in places it still stands 0.5 metres high with a thickness of 0.7 metres. What makes it worth pausing over is not its scale but its situation: most of the wall protrudes through uncut bog, preserved by the same anaerobic conditions that have kept Irish bogs as accidental archives for thousands of years. Where turf-cutting has exposed the lower courses, the stonework survives upright, the base courses set in clay at right angles to the wall's main line.

This is a field boundary, which sounds mundane until you consider what its current position implies. The wall predates the formation of the surrounding bog, meaning it was built when this hillside in south-west Kerry was open, workable land, farmed or grazed by people who had no reason to think the ground would eventually swallow their work. Bog growth in Ireland has been ongoing for millennia, and walls like this one serve as accidental stratigraphic markers, fixing a moment when the landscape looked entirely different. The rough hill pasture and cutaway bog visible today are the result of centuries of gradual change, and the emerging stonework is a kind of cross-section through that process.