Where peat-cutting has stripped back the surface, a section of field wall has emerged: white in colour, ruined, and set directly onto the base clay beneath the bog. It is the kind of thing that announces itself quietly, an agricultural boundary from a landscape that no longer exists above ground, now exposed along roughly twenty-two metres of bog face.

This is a relict field wall, meaning it belongs to a former agricultural system that was eventually swallowed by the encroaching bog, preserving the wall rather than destroying it. The section visible at the bog face stands between 0.4 and 0.6 metres high and is about 0.8 metres thick, running on a north-east to south-west alignment. Its white colour likely reflects the mineralogy of the local stone after long burial. Beyond the cut section, the wall can still be traced continuing into the uncut bog to the north-east, the peat keeping the rest intact underground. The site does not stand alone: an enclosure sits roughly sixty metres to the west-north-west, and a cairn, a mound of stones that may mark a burial or a boundary point, lies about 130 metres to the west. Together, these features suggest this corner of Fustane was once a structured, inhabited place, organised for farming at a time when the land was open rather than waterlogged.