This circular feature, which appeared on the 2nd edition Ordnance Survey 6-inch map and possibly showed as a small mound on the 3rd edition, has since vanished from view. Today, visitors to this spot in Kilmore would find little evidence of the structure that once occupied this gently elevated ground beside the lough.

The enclosure’s disappearance reflects a common fate for many of Ireland’s archaeological features; centuries of farming, weather, and landscape changes have erased countless remnants of the past. What makes this site particularly intriguing is its documented presence on historical maps, providing a tangible link to how the landscape appeared to Victorian-era surveyors. These early Ordnance Survey maps, created with remarkable detail in the 19th century, often captured archaeological features that have since been lost to time.

The site was documented as part of the Archaeological Survey of County Donegal, a comprehensive catalogue compiled by Brian Lacey and his team in 1983. This survey, which covers field antiquities from the Mesolithic Period through to the 17th century, serves as an invaluable record of Donegal’s archaeological heritage, preserving details of sites like this Kilmore enclosure that might otherwise be completely forgotten. While the physical structure may be gone, its memory persists in these careful archaeological records, reminding us of the layers of human history that lie beneath Ireland’s rural landscapes.