It does not announce itself. Most of its stones have collapsed and sunk into the peat, and only occasional uprights break the surface, protruding at intervals like the spines of something buried. What remains visible hints at a structure that was once deliberate and substantial: a field boundary roughly 130 metres long, built with stones set at right angles to the wall's line, meandering from east to west until it meets a river bank. Midway along, a second wall branches off to the south for about 60 metres before it too disappears beneath the bog.

The wall begins around 25 metres east of a recorded hut site, a proximity that suggests this was working agricultural land rather than a casual boundary. Someone lived close by, and these walls organised the ground around them. Relict field systems of this kind, preserved beneath blanket bog, represent an earlier agricultural landscape that was gradually swallowed as the peat accumulated over centuries. The bog, which can preserve organic and inorganic material with remarkable fidelity, has in this case both hidden and protected the structure. The wall itself is modest in scale, around half a metre wide and only about 0.4 metres high where it still stands, but its survival in any form on rough hill pasture at this altitude speaks to the conditions that allowed it to persist.