This circular stone cashel, measuring nearly 25 metres across its interior, is defined by a collapsed stone wall that still rises to over half a metre in places despite centuries of weathering. The wall itself is substantial, reaching up to 2.45 metres in width, suggesting this was once a formidable defensive structure that would have dominated the local landscape.

The fort’s builders clearly chose their location with defence in mind. Along the northern half of the structure, they dug a fosse, or defensive ditch, that runs 2.1 metres wide around the outside of the wall. Interestingly, this ditch doesn’t continue around the southern side, where the natural steep slope of the land provided its own protection. This practical approach to fortification shows how early inhabitants worked with the natural topography rather than against it.

Within the cashel’s eastern section lie the collapsed remains of what appears to have been a rectangular stone building, possibly a dwelling or storage structure. The building’s footprint measures approximately 4.8 by 4 metres externally, with internal dimensions of roughly 2.35 by 1.9 metres; thick walls that would have provided both strength and insulation. Two depressions in the cashel wall, likely created in more recent times, can be seen at the northwest and west-southwest points. As National Monument number 139, this site is now under state care, preserving an important piece of Donegal’s archaeological heritage for future generations to study and appreciate.