Known locally as Lisnaclontybane, this rath measures 35 metres in internal diameter and consists of a circular enclosure defined by a low earthen bank that has weathered considerably over the centuries. The site occupies a strategic position on the shoulder of a low ridge, offering good views of the surrounding countryside, though the land immediately around the fort tends towards bogginess.

The ringfort’s defensive bank has suffered from both time and modern agricultural practices; sections have worn away completely, whilst contemporary field fences now cut directly through the ancient earthwork. Despite this intrusion, the circular footprint of the settlement remains clearly visible, marking out what would once have been a bustling farmstead during Ireland’s early medieval period. These raths, found throughout the Irish landscape, served as fortified homesteads for prosperous farming families between roughly 500 and 1200 AD.

The site was formally documented in the Archaeological Survey of County Donegal, compiled by Brian Lacey and his team in 1983, which catalogued field antiquities from the Mesolithic period through to the 17th century. Like many of Donegal’s archaeological sites, Lisnaclontybane represents a tangible link to Ireland’s rural past, when these circular enclosures dotted the landscape, each one home to a family group living within the protective embrace of their earthen ramparts.