Blanket bog, which builds up gradually over centuries as waterlogged conditions prevent organic material from fully decomposing, can seal whatever lies beneath it with remarkable fidelity. What emerged here when the cutting broke through was not rubble but coherent structure, suggesting a landscape that was once organised, managed, and inhabited.

The most substantial of the exposed walls runs NNE to SSW for 112 metres, curving gently along its course. Roughly three to five metres to its east, a second parallel line of stones tracks a similar direction, running SSW for around 28 metres before a gap of six metres and then continuing for a further 58 metres before disappearing back into uncut bog. Additional walls extend eastward near that gap, and a further east-west wall some 20 metres long lies 38 metres to the NNE of the main alignment. The arrangement, with two parallel walls running in the same direction and lateral walls extending outward from them, is suggestive of a laneway, the kind of enclosed corridor used to move animals or people between fields and higher ground. The whole complex sits approximately 28 metres to the west and south-west of a wedge tomb, a type of prehistoric megalithic burial monument, which hints that this part of the uplands has been in use across a very long stretch of human time, the field system itself likely predating the bog that buried it.