They break the surface only intermittently, their upper edges catching the light in lines that do not quite follow the contours of any modern farm. Together they describe an irregular enclosure stretching roughly 900 metres east to west and 540 metres north to south, a considerable area for what is now rough grazing land, and a quiet indication that this hillside was once managed in a very different way.

The walls themselves are low, around half a metre in height where they survive, and roughly 0.6 metres thick. What makes them structurally distinctive is the presence of many slab-type stones set at right angles to the line of the wall, a technique sometimes called orthostatic construction, in which upright slabs form the core or face of a boundary rather than being laid horizontally in the more familiar coursed style. This method is found across pre-modern field systems in the west of Ireland and is often associated with considerable age, though the walls at Teeromoyle have not been precisely dated. Several gaps interrupt the lines, whether from later disturbance or simple collapse is not recorded. The site is documented by O'Sullivan and Sheehan in their 1996 survey of south-west Kerry, which placed it within a broader pattern of relict agricultural landscape preserved beneath the expanding blanket bog of the Iveragh Peninsula.