They run roughly north to south, roughly parallel, roughly seventy metres each, and separated by about forty metres. In places, the stones sink into deeper bog, swallowed by centuries of accumulating peat. What makes these walls quietly arresting is precisely that disappearing act: they are relict field boundaries, the remnants of an agricultural landscape now buried beneath ground that was once dry enough to farm.

Relict boundaries of this kind are traces of pre-bog enclosure, walls built to divide and manage land before the bog grew up around and eventually over them. The two walls at Cloontreem are mainly curvilinear, meaning they follow a gentle curve rather than a rigid straight line, with many of the individual stones set at right angles to the line of the wall itself, a construction method that would have helped lock them in place on uneven ground. Each wall stands at roughly 0.45 metres high and 0.6 metres thick where they protrude above the peat, though what lies beneath is harder to say. Immediately to the east of the northernmost wall sits a hut site, a simple surface-level dwelling remnant of a kind commonly associated with upland or seasonal occupation, suggesting that whoever maintained these boundaries also lived, at least for a time, close beside them.