The bog that buried it has since been partially cut away, exposing stretches of pre-bog field walls that extend across an area roughly 700 metres east to west and 400 metres north to south. More than ten discontinuous sections have been identified so far, visible at ground level as low stony banks, along with at least one possible field clearance cairn, the kind of mound left when farmers gathered stones from cultivated ground and piled them at the margins. What makes the site genuinely puzzling is that the walls form no obvious pattern. There is no grid, no enclosure logic that has yet been read from them.

A section cut through one of the walls revealed the construction method in some detail: quartz boulders were used to revet, or face, a rubble core, producing a wall 1.6 metres wide and 0.9 metres high. That is a substantial piece of work, built to last, and its burial under peat points to a significant shift in the local environment after the walls were raised, when wetter conditions allowed bog to encroach and eventually swallow the whole system. The walls are not isolated. Within the same area sit a court-tomb, a form of Neolithic communal monument typically consisting of a roofed burial gallery fronted by a semicircular forecourt, a stone row, and the remains of several houses. The relationship between any of these features and the field walls themselves remains unknown, according to research by Gibbons and Higgins from 1988, which means the site offers a cluster of prehistoric activity without yet offering a coherent account of how the different elements connected to one another or to the lough around which they are centred.