A bullaun is a rounded hollow ground or worn into a boulder, often associated with early Christian sites and sometimes with older ritual use; the basins were used for grinding, for holding water, or for purposes that have not survived in the record. This particular example is notable less for what it is than for the fact that it has effectively vanished, absorbed back into the landscape that once surrounded it.

Local information noted the stone in the 1980s, placing it to the west of the church and along the western bank of a stream that runs through the graveyard. When surveyors returned to the site in 2008, they could not find it. The most likely explanation is straightforward: decaying vegetation, accumulated overgrowth, and the slow encroachment of a stream-side environment had simply swallowed it. The stone almost certainly remains where it was last reported, buried under organic matter rather than moved or destroyed, but it had become, for practical purposes, lost.