At a spot known locally as Lough an Airne or Lus Na nAirne, archaeologists have identified the probable site of an ancient graveyard, which almost certainly marks the location of the original ceall, or church, that gave Kiltoorish its name. Though the dense vegetation now makes close inspection impossible, the site speaks to centuries of religious significance in this corner of rural Ireland.

Just southwest of the overgrown graveyard, a holy well continues to draw visitors despite its modest appearance. Built with dry stone walling in a roughly circular shape, the well represents a type of sacred site common throughout Ireland, where Christianity often merged with older traditions of venerating natural springs. The Archaeological Survey of County Donegal, conducted in 1983, catalogued this as one of many such wells documented by researcher Ó Muirgheasa, highlighting its enduring place in the local landscape.

The entire complex sits on a northeast facing slope in an area of rough pasture, its position offering views across Kiltoorish Lough below. While nature has reclaimed much of the physical evidence, the combination of church site, graveyard, and holy well tells a familiar Irish story; one of continuous sacred use stretching back through the centuries, where successive generations have marked the same spots as places of worship, burial, and pilgrimage.