But its proportions and construction tell a specific story: this is a corn-drying kiln, a type of agricultural feature found across early medieval Ireland, built to remove moisture from grain before milling or storage in a climate that made natural drying unreliable at best.

The structure works in two connected parts. A circular bowl-shaped pit, roughly a metre across and faced with small upright slabs, receives heat and acts as the drying chamber. A short rectangular funnel, lintelled at the top and barely wide enough to admit a forearm, connects this bowl to a second, oval pit at the south-east end. This flue arrangement is characteristic of the type: fire was set in the lower firebox, and heat drawn up through the funnel into the drying chamber above, where grain spread on a wicker frame or flagstone platform would slowly lose its moisture. The interior of both pits is now uneven and grassed over, and loose stones are scattered to the south-east, suggesting some disturbance over time. What makes the location particularly interesting is its immediate neighbourhood: roughly twenty-five metres to the south-east lies a cliff-edge fort and an associated souterrain, an underground stone-lined passage of the kind often attached to early medieval settlements for storage or refuge. The proximity of a corn-drying kiln to that kind of enclosed settlement is not accidental; grain processing and defended habitation tended to occupy the same agricultural landscape.