Exposed in its west-facing slope is a midden, the archaeological term for a refuse deposit left by past inhabitants, composed largely of limpet and periwinkle shells mixed through a light-grey sandy matrix. Calcined, or heat-fractured, animal bones and occasional fragments of charcoal are scattered through it as well, the residue of meals cooked and fires lit by whoever occupied this spot. The layer runs roughly two metres north to south and sits between twenty and thirty centimetres thick, moderately dense but patchy, tracing an interrupted line through the slope where wind and coastal erosion have begun to cut it open.

Middens like this one are among the most direct records of everyday life that survive in the Irish archaeological landscape. They tell us less about monuments or power than about diet, season, and subsistence: what people pulled from the sea, what they butchered, what they burned. Limpets in particular appear frequently in coastal and island middens throughout Ireland and Scotland, sometimes as a dietary staple and sometimes as bait for line fishing. The presence of charcoal alongside calcined bone suggests cooking or hearth activity nearby, consistent with the broader classification of this location as a possible habitation site. A thin cap of dark, sandy topsoil and sod, only about ten centimetres deep, seals the deposit from above, which is partly why the eroding slope rather than the surface is where the midden becomes visible at all.