Marked on the first and second editions of the Ordnance Survey 6-inch maps as a single-ringed, circular fort, this ancient monument has left no physical trace for modern visitors to explore. The site represents one of countless ringforts that once dotted the Irish countryside, serving as defended homesteads for farming families during the early medieval period.

These circular enclosures, typically dating from roughly 500 to 1200 AD, were amongst the most common archaeological features in Ireland, with an estimated 45,000 examples originally built across the island. The Carrickanee fort would have consisted of an earthen bank and outer ditch forming a protective ring around a central area where wooden or stone buildings housed families, their livestock, and stores. While many ringforts survive as prominent earthworks or stone cashels elsewhere in Ireland, intensive agricultural activity has completely erased this particular example, leaving only its cartographic record as evidence of its existence.

The documentation of this lost monument comes from the Archaeological Survey of County Donegal, a comprehensive catalogue compiled by Brian Lacey and his team in 1983. This survey, which records field antiquities from the Mesolithic period through to the 17th century, serves as a crucial record for sites like Carrickanee’s ringfort; places that have succumbed to centuries of ploughing and cultivation but remain important pieces in understanding the pattern of early medieval settlement across Donegal.