Though it has completely vanished from the modern landscape, this circular stone enclosure once measured between 15 and 20 metres across, its single ring of walls providing protection for an early medieval homestead. The fort appeared on both the first and second editions of the Ordnance Survey 6-inch maps, marking its location for posterity even as the physical structure crumbled away.

Today, visitors to the area would find no trace of this ancient dwelling place; the stones that once formed its protective walls have long since been scattered or repurposed. Like many of Ireland’s estimated 45,000 ringforts, this example at Baile Na Bó represents the most common type of settlement from the early medieval period, when farming families built these defensive enclosures across the countryside. The fort’s position on elevated ground was typical of these structures, offering both defensive advantages and good drainage for the inhabitants.

The site was documented as part of the comprehensive Archaeological Survey of County Donegal, compiled by Brian Lacey and his team in 1983. This extensive survey catalogued field antiquities spanning from the Mesolithic period through to the 17th century, ensuring that even vanished monuments like this ringfort remain part of the county’s recorded heritage. While the physical fort may be gone, its inclusion in historical maps and archaeological records preserves its place in Donegal’s rich tapestry of ancient settlements.