This cross-inscribed pillar at An Clochán measures just under a metre tall and spans 44 centimetres at its arms, with a thickness of 14 centimetres. Cut from local stone into a crude cross shape, the slab is aligned east to west, following the traditional Christian orientation that connects the rising and setting sun with themes of resurrection and eternal life.

What makes this modest monument particularly interesting is its simplicity; both the north and south faces feature inscribed Latin bar crosses, a straightforward design consisting of a vertical line intersected by a horizontal bar. These markings suggest the stone served as a waymarker or boundary stone for early Christian communities in the area, possibly dating from the early mediaeval period when such crosses were commonly erected throughout Ireland. The Latin cross design, whilst basic, represents the spread of Christianity through rural Donegal and the establishment of religious territories in these remote valleys.

The pillar’s location in Glencolumbkille is significant, as this valley has long associations with St. Columba (Colmcille), one of Ireland’s most important early saints. The area contains numerous archaeological remains from various periods, and this cross-inscribed stone forms part of a broader landscape of religious and cultural monuments that tell the story of continuous habitation and worship in this corner of Donegal from prehistoric times through to the present day.