Cross-slab, An Tsráid, Co. Donegal
The graveyard at Glencolumbkille Church of Ireland sits on what's believed to be an ancient ecclesiastical site founded by St. Colmcille himself.
Cross-slab, An Tsráid, Co. Donegal
While some historians have suggested traces of a circular enclosure once existed here, none are visible today. The modern church that now stands within the graveyard was built just north of where an older church once stood until it was demolished in 1828. That earlier building was quite substantial; measuring 52 feet by 21 feet, with walls 3 feet thick and rising 12 to 14 feet high, topped with a vaulted, arched tower at its western end.
Just south of the present church, visitors can access one of the site’s most intriguing features: an underground souterrain. The entrance leads to a subcircular shaft that drops 1.8 metres before narrowing into a rectangular opening. Through a lintel-roofed doorway, you’ll step down into the central chamber, an impressive space measuring 5.6 metres east to west and 2.3 metres north to south, with partially corbelled walls that narrow towards the top. From here, the souterrain branches into two additional chambers. The eastern chamber stretches 6.15 metres long but is barely wide enough for a person to pass through at 86 centimetres. The western chamber runs even longer at 8.7 metres, maintaining a narrow width of about one metre throughout most of its length.
What makes this souterrain particularly special is the discovery of a reused cross-slab incorporated into the roof of the eastern chamber. Though partially obscured, you can still make out an incised circular depression surrounded by a groove attached to a straight stem; clear evidence that early Christian carved stones were repurposed in the structure’s construction. The entire complex demonstrates sophisticated building techniques, with walls formed from large thin slabs set upright at the base and roofs made from carefully placed flagstones. The site commands an impressive position on the floor of the Glencolumbkille valley, surrounded by good pasture land, suggesting its historical importance to the community that once worshipped here.





