The Ordnance Survey’s second edition 6-inch map, produced in the late 19th century, recorded a single-ringed enclosure at this spot; a simple earthwork that would have consisted of a circular bank, possibly with an internal ditch. Today, visitors to this low hill will find no visible trace of the structure that once stood here, its earthen banks long since levelled by centuries of farming and natural erosion.

The site sits in what would have been a strategic yet modest location, surrounded by pasture land with rising ground to the east providing a natural vantage point over the enclosure. These single-ringed enclosures, known locally as raths or ringforts, were common throughout Ireland and typically date from the early medieval period, roughly between 500 and 1200 AD. They served as defended homesteads for farming families, with the circular bank providing protection for dwellings, livestock and storage buildings within.

The documentation of this lost monument comes from the comprehensive Archaeological Survey of County Donegal, compiled by Brian Lacey and his team in 1983. This survey represents one of the most thorough catalogues of Donegal’s archaeological heritage, recording everything from Mesolithic sites to 17th-century structures. Though the Raithnigh enclosure has been erased from the physical landscape, its inclusion in both the OS maps and the archaeological survey ensures that this piece of local history remains part of the county’s documented heritage.