As turf-cutting has removed the bog on the south-facing slope, short, discontinuous stretches of a pre-bog wall have come to light, running roughly north to south up towards the summit of the ridge. In total about 35 metres of it survive, built from granite and schist orthostats, which are large upright stones set on end to form the wall's core. The fact that it sits beneath what was once intact bog means it predates the formation of that peat, making it considerably older than its modest appearance might suggest.

At the upper end of the wall, the masonry dissolves into a loose scatter of stones that may represent the collapsed remains of a small structure, perhaps an enclosure corner or a simple shelter. Equally telling are the possible negative lynchets visible in the cutaway bog on either side of the wall. A lynchet is a step-like earthwork that builds up gradually along the edges of cultivated or grazed ground, as soil creeps downslope over repeated seasons of use. Where they appear as negative features, that is as cuts or depressions rather than raised banks, they often indicate that the surrounding ground level has changed, here through the removal of peat revealing the older, lower surface beneath. Together, the wall and the lynchets suggest a landscape of fields and managed land that was eventually swallowed by bog growth, preserving beneath it a faint record of earlier farming activity on this drumlin slope in the west of Galway.