Though centuries of weather and human interference have taken their toll on this ancient structure, its basic form remains discernible amongst the collapsed stonework. The site consists of two concentric circles; an inner enclosure approximately 6.5 metres in diameter, surrounded by a larger ring of tumbled stones that extends around most of the perimeter, save for gaps on the northern and northwestern sides.

The inner circle maintains a relatively level surface, though it’s now littered with loose stones from the partial collapse of the surrounding walls. Where the outer wall has fallen inward, the stone spill connects with the inner enclosure at several points, creating a jumbled archaeological puzzle. A notable depression in the eastern section of the outer wall may mark the original entrance to the cashel, whilst the southwestern portion of the outer wall bears what appears to be the remnants of an old trigonometrical station, likely placed there by surveyors in more recent centuries.

This description draws from the comprehensive Archaeological Survey of County Donegal, compiled by Brian Lacey and his team in 1983, which catalogued field antiquities from the Mesolithic period through to the 17th century. The survey provides invaluable documentation of sites like Tievecloghoge, which might otherwise be overlooked in their remote, boggy settings, preserving details of Ireland’s archaeological heritage for future generations to study and appreciate.