Despite its designation, you won’t find any trace of this structure on the Ordnance Survey maps from the late 19th and early 20th centuries; both the first and second editions of the OS 6-inch maps show nothing but empty fields where this ancient enclosure once stood. The site’s topography offers clues to its past: positioned on gently elevated ground with expansive views across the surrounding countryside, it would have provided both strategic advantage and access to rich grazing land.

Archaeological evidence suggests this was likely an earthen ringfort, a type of settlement common throughout Ireland during the early medieval period. These circular enclosures, typically built between the 6th and 12th centuries, served as fortified farmsteads for prosperous families. The earth banks and ditches that once defined Bellanascaddan’s fort have long since been levelled by centuries of farming, leaving only the faintest impression on the landscape that trained eyes might still detect.

The site was documented as part of the comprehensive Archaeological Survey of County Donegal, compiled in 1983 by Brian Lacey and his team of researchers. This extensive catalogue sought to record the county’s archaeological heritage from the Mesolithic period through to the 17th century, preserving knowledge of sites like Bellanascaddan that might otherwise disappear from memory entirely. While the physical fort may have vanished, its inclusion in this survey ensures that future generations will know that this quiet patch of Donegal farmland once hosted one of Ireland’s thousands of ringforts, those ubiquitous monuments to a way of life that dominated the Irish countryside for over half a millennium.