With an inner diameter of 16 metres and a total span reaching approximately 85 metres, this complex defensive structure features four intervening fosses (ditches) between its banks, with possible berms visible between several of the rings. The fort’s strategic position, originally on high ground just south of the river, now places it just above the high water mark of the Erne Dam.

The site tells a story of both ancient engineering and modern disruption. A possible entrance on the northeast side would have controlled access to the interior, where a souterrain was discovered in the 1940s. This underground passage, accessible through an opening in the southwest just inside the inner bank, extended 10 feet beneath the earthworks. Its walls were constructed using drystone techniques, topped with flagstone roofing; a testament to the sophisticated building methods employed by its creators. Unfortunately, this subterranean feature is no longer visible today.

Time and development have taken their toll on this ancient monument. The southern portion has suffered considerable damage from road construction, which cut between the fort and the railway line in the mid-20th century. A smaller enclosure that once stood immediately to the west has completely vanished, and the entire site is now covered by a small tree plantation. The eastern section shows particular deterioration, with banks broken down into a confusion of low mounds, whilst the outer bank merges into field fences on both the northeast and south sides. Despite these changes, the fort remains an evocative reminder of Ireland’s ringfort tradition, when such structures served as defended farmsteads for wealthy families during the early medieval period.