It measures barely 2.2 metres north to south and stands only 0.4 metres high, easy to miss and easier still to dismiss as a natural hummock. It is neither. This small subcircular cairn, a deliberate accumulation of stone built by human hands in the prehistoric past, is one of eight such structures clustered together across this stretch of rough upland grazing at Fanahy.

Cairns of this kind were typically raised as funerary or commemorative monuments, marking the dead or anchoring a community's relationship to a particular piece of landscape. What makes the Fanahy group quietly remarkable is precisely that quality of clustering. Eight cairns in relatively close proximity on a south-facing slope suggests this was not an incidental or isolated act of burial, but something more deliberate, a place that held repeated significance over time. The nearest of the group lies roughly 13 metres to the south-east, close enough that the two monuments would have been visible to anyone standing at either. The blanket bog, which forms and deepens over centuries of wet upland conditions, has gradually absorbed the lower portions of these structures, leaving only their tops to protrude above the vegetation.