Measuring roughly four metres east to west and five and a half metres north to south, it is a cairn, the kind of stone-pile monument typically associated with prehistoric burial or territorial marking, and it sits within a field system that spreads across the plateau around it. What makes this particular cairn worth pausing over is not its size but its company: another cairn lies approximately seventy metres to the east, and several more are scattered across the same plateau, suggesting this landscape was deliberately, repeatedly marked by people who left little else by way of explanation.

Keegan, writing in 2016, noted some evidence of a central structure within the cairn, which hints at a burial or ritual function, though the record stops short of certainty. A central structure within a cairn typically refers to a stone cist or chamber, sometimes containing human remains or grave goods, though whether that is the case here remains unclear. What is clearer is that the cairn does not sit in isolation but belongs to a broader pattern of activity on the Termon plateau, including the field system surrounding it, which suggests sustained occupation or land use rather than a single ceremonial deposit. The cumulative effect of cairns, field boundaries, and slope is of a place that was once organised, inhabited, and meaningful in ways that have since become difficult to read.