The area known as Lough an Airne, or Lus Na nAirne, is believed to contain the remains of a graveyard marking the location of the original Ceall, the church that gave Kiltoorish its name. Today, the site sits abandoned in rough pasture, completely overtaken by dense briars and undergrowth that make close inspection nearly impossible.

Just southwest of the graveyard, visitors can find a holy well that has survived the centuries in better condition. This roughly circular well, constructed from dry stone walling, represents the kind of vernacular religious architecture that once dotted the Irish landscape. Known locally as site number 37 in Ó Muirgheasa’s catalogue, the well would have served as an important focal point for local worship and pilgrimage, particularly in times when the church itself may have fallen into disrepair.

The archaeological significance of these sites was formally recognised during the Archaeological Survey of County Donegal, conducted by Brian Lacey and his team in 1983. Their work documented field antiquities spanning from the Mesolithic period through to the 17th century, ensuring that even overgrown and forgotten places like the Kiltoorish church site remain part of Ireland’s recorded heritage. While nature has reclaimed much of the original church grounds, the combination of the graveyard remains and the intact holy well offers a tangible connection to the early Christian community that once flourished in this corner of Donegal.