The wall is not especially tall, rising to around 0.7 metres where it clears the peat, and not especially thick at roughly 0.65 metres, but it traces the outline of an irregular enclosure roughly 38 metres east to west and 36 metres north to south. What makes it quietly strange is where it goes at the edges: short sections continue down into the deeper bog at intervals, swallowed by centuries of accumulating peat, suggesting the wall was built long before the bog reached its current depth.

The enclosure sits on the north-facing slopes of Beenduff in south-west Kerry, and it does not sit alone. Three hut sites cluster against the outer face of the perimeter wall itself, and another two lie just to the south of the south-western corner. A drystone enclosure of this kind, built without mortar by stacking and fitting stone, would have defined a bounded space for settlement, farming, or the management of animals. The associated hut sites suggest this was a place where people actually lived, though precisely when remains unclear from what survives above ground. The bog, which preserves the wall even as it obscures it, is in that sense both the reason the structure survives and the reason so much of its story remains inaccessible.