Though historian Michael Herity suggested in 1971 that traces of a circular enclosure could still be seen here, recent surveys haven’t found any evidence of these remains. The site, designated as National Monument 139, once housed an earlier church that was demolished in 1828; this older building measured 52 feet by 21 feet, with walls three feet thick and reaching heights of 12 to 14 feet, and featured a vaulted, arched tower at its western end. Today, a modern church stands within the graveyard, just north of where its predecessor once stood.

The most intriguing feature of this site lies just south of the present church: a souterrain accessed through a modern entrance. This underground structure begins with a subcircular shaft nearly two metres deep, which narrows into a rectangular opening at the bottom. From there, visitors step down into a central chamber measuring 5.6 metres east to west and 2.3 metres north to south, with partially corbelled walls that create a distinctive architectural style typical of early medieval Ireland. The souterrain extends into eastern and western chambers; the eastern chamber stretches over six metres and contains a remarkable detail in its roof, where the second slab from the western end is actually a repurposed cross slab bearing an incised circular design. The western chamber runs even longer at 8.7 metres, widening and narrowing as it goes, with drystone walls and flagstone roofing supported at intervals by stones that may be modern additions.

Scattered throughout the graveyard are several notable cross slabs and grave markers that speak to centuries of Christian worship at this site. These include a horizontal graveslab near the church’s southeast corner featuring a Latin cross with distinctive bar terminals, and two more slabs at the eastern end of the graveyard. Perhaps the most impressive is a broken cross slab found east of the church, originally standing 1.76 metres tall, decorated on its western face with elaborate designs including a three pointed star surrounded by L shapes, triple interlaces, and a quartered circle motif all connected by a central stem. The site’s commanding position on the floor of Glencolumbkille valley, surrounded by good pasture land, explains why it has served as a focal point for the local community for well over a millennium.