A single stretch of south wall, just over six metres long and still standing to a height of roughly three metres, rises from pastureland on a south-facing slope in County Galway. The west gable and north wall have sunk entirely into the ground, their outlines traceable only as grass-covered ridges. No doorway, no window opening, no carved stonework of any kind remains legible. The building has not so much fallen as gradually dissolved back into the hillside, leaving a rectangular footprint, fourteen metres long and eight metres wide, that is easier to read on a plan than on the ground.

The site looks out northwestward over a wide expanse of bogland, a landscape that would have framed this small rural church throughout its working life. O'Flanagan, writing in 1927, recorded the remains in the first volume of a survey of Galway placenames and antiquities, and that account remains one of the few references to the place. The dedication to Columb, almost certainly the early medieval saint more widely known as Colmcille or Columba, suggests an origin in the early Christian period, when small rectangular churches of mortared stone were being raised across the west of Ireland, often on the sites of even earlier timber oratories. Without visible architectural details, it is impossible to date the standing fabric more precisely.