Stone walls, now only around half a metre high and barely two-thirds of a metre thick, push intermittently through the peat surface across an area roughly 400 metres in each direction. They are the remains of a network of field boundaries that once organised this hillside into a managed, working place, long before the bog crept up and swallowed it.

What makes Killabunane particularly arresting is not any single wall but the density of what lies within that network. Alongside the field boundaries sit two cairns, the larger of which anchors one stretch of wall that runs southward for about 90 metres before dipping below the bog again. Cairns of this kind are typically stone-built funerary or boundary monuments, often prehistoric in origin. Nearby are two hut sites, a probable enclosure, and a fulacht fia, a type of ancient cooking site found widely across Ireland, usually identified by a distinctive horseshoe-shaped mound of fire-cracked stone beside a former water source. Together these features suggest a community that farmed, cooked, sheltered, and buried its dead on this col, now damp and rough with hill pasture. The walls themselves were built directly onto clay soil beneath what became the peat; the collapsed upper courses of stone are now embedded in the bog, effectively sealed in place by centuries of accumulating organic matter. That preservation is precisely why the details remain legible at all.