The walls are modest things, roughly 0.6 metres thick and only about 0.4 metres high where they emerge, and the moor-grass has done its best to obscure them entirely. Yet one of them runs for approximately 105 metres along the east bank of a small northward-flowing stream, and a second, separate wall some 25 metres to the east continues for around 30 metres in an east-south-easterly direction. Together they suggest a system of enclosed ground that once made deliberate use of the terrain and the watercourse beside it.

These are what archaeologists call relict field walls, meaning they belong to a phase of land use that has since been abandoned and partially buried by the growth of peat. The construction technique, flat slab-type stones set mainly at right angles to the line of the wall, is a practical approach suited to upland ground where suitable material could be gathered from the hillside itself. Bog growth in the centuries since these walls were built has been both their undoing and, in a sense, their preservation, holding the stones in place even as it conceals them. The townland name, Tuairín Uí Dhuinnín, places this somewhere within the old Gaelic landscape of the Iveragh peninsula, though the precise period in which these particular walls were constructed and then given up is not recorded. What is clear is that hill grazing at this altitude was once organised and bounded, not simply open ground.