Beneath what is now rough hill pasture and cutaway bog, a curvilinear stone wall had lain hidden, its stones pressed down under accumulating peat until the cutting exposed them. What emerged is a relict field boundary, a term used to describe a wall or earthwork that has fallen out of use and been absorbed into the surrounding landscape, often surviving only because the bog sealed it in place rather than eroding it away.

The wall runs roughly east to west for approximately fifty metres, and its profile where visible is modest, around half a metre thick and thirty centimetres high. That modesty is partly a function of what survives after long burial rather than what was originally built. Along the eastern half, where the ground is level, the wall disappears into uncut bog, its continuation preserved but not yet visible. On the western, downsloping half, individual stones break through the surface of the uncut peat, hinting at the line of the original boundary beneath. The curvilinear form is itself informative: straight-sided field systems tend to be associated with later, more systematic land organisation, while curved or irregular boundaries often reflect earlier, more organic patterns of enclosure, shaped by topography and incremental use rather than planned layout. Bog conditions are well known for preserving organic and inorganic material alike, and it is not unusual for peat to hold the outlines of early agricultural landscapes that would otherwise have vanished entirely at ground level.