Building, Reachlainn Uí Bhirn, Co. Donegal
In the townland of Reachlainn Uí Bhirn in County Donegal stands a tiny, ancient oratory that offers a fascinating glimpse into early Irish Christian architecture.
Building, Reachlainn Uí Bhirn, Co. Donegal
This diminutive structure, with its distinctive trapezoidal footprint, measures just 3.4 metres at its longest side and contains an interior space of only 2.2 by 1.7 metres. The walls, built from roughly coursed oblong blocks of local granite, survive to a height of 85 centimetres, with one particularly impressive stone stretching 2.2 metres along the base of the north wall. The building’s orientation, angled 20 degrees south of east, and the remnants of a narrow doorway in the western wall suggest this was indeed a place of worship, likely topped with a simple A-frame roof in its original form.
What makes this site particularly intriguing is the dry-stone structure built along the interior north wall, constructed from flat felstone blocks and topped with dark schist slabs and smooth quartz beach pebbles. This feature, measuring 1.45 metres long and 72 centimetres high, is believed to be a leaba or tomb-shrine, possibly marking the resting place of the oratory’s founder saint. Similar examples can be found at Falmore and Inishglora in County Mayo, as well as at Teach Molaise on nearby Inismurray in Donegal Bay, suggesting this was a common practice in early Irish ecclesiastical sites.
The religious significance of the space is further emphasised by the presence of several cross-slabs, including two that stand at either end of the tomb-shrine feature. A third, broken cross-slab was discovered amongst the stones atop the structure in 1992, adding another layer to the site’s archaeological story. Though modest in scale, this oratory represents an important piece of Ireland’s early Christian heritage, its weathered granite walls bearing silent witness to centuries of devotion in this corner of Donegal.