Marked on Victorian Ordnance Survey maps, this earthwork measured roughly 50 feet across internally, but time and agriculture have erased all visible traces of it from the landscape. What little we know comes from historical records and a brief archaeological investigation in 1996, when plans for a new house near the site triggered a requirement for exploratory excavation.

The trial trenching, carried out that September, revealed tantalisingly little about the fort’s original purpose or inhabitants. Archaeologists dug three sections totalling 47 metres in length, finding mostly disturbed soil and modern rubbish fill. The only hint of ancient activity came in the form of a small lens of burnt soil and charcoal, measuring just 30 centimetres square and less than 10 centimetres thick, discovered within the subsoil. A single piece of black-ware pottery, likely medieval in origin, was also recovered as a stray find.

Today, the field where Park Fort once stood offers sweeping views of the Atlantic Ocean, situated about two and a half miles north-west of Ballyshannon in Creevy townland. While the enclosure itself has vanished, levelled by generations of farming, its ghost lingers in the archaeological record; a reminder of how even substantial earthworks can disappear entirely from the Irish landscape, leaving only map references and sparse excavation notes to tell their story.