The site consisted of a raised mound measuring approximately 69 feet from north to south and 71 feet from east to west, though notably it lacked any trace of an enclosing bank that might typically accompany such defensive structures. Positioned on relatively flat ground, the mound overlooked marshy terrain that stretched down towards the shoreline, a strategic location that would have offered both defensive advantages and access to coastal resources.

Unfortunately, this archaeological feature has since been lost to modern development. Road widening works removed the mound entirely, erasing what might have been evidence of early medieval or even prehistoric occupation in the area. The original survey, conducted by M. R. Colhoun and later incorporated into the comprehensive Archaeological Survey of County Donegal in 1983, provides the only detailed record of the site’s existence.

The loss of the Creehennan mound reflects a common challenge in Irish archaeology, where development pressures often clash with heritage preservation. Without excavation prior to its destruction, we can only speculate about the mound’s original purpose; whether it served as a ringfort, a burial mound, or perhaps had some other ceremonial or defensive function. Its position overlooking the marshy approaches to the coast suggests it held some strategic or symbolic importance to the people who constructed it, making its undocumented removal all the more regrettable for our understanding of Donegal’s ancient landscape.