Ringfort (Cashel), An Leargain Bhreac, Co. Donegal
In County Donegal's countryside, where the land gently slopes towards the south and the Knockalla Mountain Range rises to the north, stands the remains of an ancient cashel at An Leargain Bhreac.
Ringfort (Cashel), An Leargain Bhreac, Co. Donegal
This circular stone fort, measuring approximately 20 metres across, represents a type of defended homestead that once dotted the Irish landscape. Its drystone walls, built without mortar, still trace a near complete circuit, though centuries of weathering and agricultural activity have reduced them to modest heights of around half a metre. The construction technique is still visible in places; between the north and north northeast sections, both the inner and outer wall faces can be seen, revealing the structure’s substantial width of 2.6 to 3 metres.
The site has undergone considerable changes since its original construction, most notably where a modern field wall cuts through from north to southeast, obscuring portions of the ancient structure beneath built up material on the western side. A 10 metre section of the cashel wall has been completely removed on the southern side, though a faint scarp still hints at where the inner face once stood. Curiously, an earthen and stone bank outside the cashel’s southern perimeter joins with the remaining wall to form one side of an old lane that curves around the fort’s southern and western edges, suggesting the site’s integration into later field systems.
The grass covered interior follows the natural downward slope of the surrounding terrain, with only a small depression on the southern side, roughly 3 metres by 1 metre and 30 centimetres deep, breaking the otherwise unremarkable surface. The location itself speaks to the practical considerations of its builders; positioned on light soiled grazing land peppered with rock outcrops, the cashel would have provided a secure base for a farming family whilst offering good visibility across the surrounding landscape. This example forms part of County Donegal’s rich archaeological heritage, documented in the comprehensive 1983 archaeological survey that catalogued the county’s field antiquities from the Mesolithic period through to the 17th century.





