At Boolananave in south-west Kerry, several short stretches of such walls still break the surface of a boggy ridge, tracing the rough outline of what was once an enclosed agricultural area on the hillside above Kenmare Bay.

The remains consist of a handful of wall sections, each between seven and twenty-five metres long, around eighty centimetres thick and half a metre high where they remain visible. Together they define a roughly rectangular space of approximately eighty-five metres by forty metres. The walls are what archaeologists call relict field boundaries, meaning they belong to an agricultural landscape that has long since gone out of use and been obscured by later environmental change. In this case, the encroaching blanket bog, which typically developed across Irish uplands from the Neolithic period onwards as soils became waterlogged and exhausted, has preserved the lower portions of the walls even as it buried the ground they once divided. The site sits on a north-east to south-west ridge with views down towards Kenmare Bay and across to the Beara Peninsula, terrain that would once have been marginal but workable hill grazing, the kind of land pressed into use during periods of population pressure or pastoral expansion. The walls were documented by O'Sullivan and Sheehan in their 1996 survey of south-west Kerry.

The walls themselves are modest, easy to miss unless you are specifically looking for the slight linear ridges where stone sits just proud of the peat. That quality, the way the site barely announces itself, is rather the point. What protrudes above the bog surface is less a ruin than a trace, a faint legibility in the landscape of an earlier arrangement of land and labour.