At Derrydonnell More in County Galway, a medieval burial ground measuring roughly 45 metres east to west and 40 metres north to south was recorded in December 1982 with several upright headstones clearly visible inside its enclosing stone wall. When surveyors returned in August 1992, those same headstones had vanished entirely, not removed but swallowed by a growth of thorn trees and bushes so dense that the graveyard had become virtually impenetrable. Aerial imagery suggests the site has since been cleared again, meaning it has passed through at least one full cycle of visibility, concealment, and recovery.

The graveyard sits immediately to the south of a medieval church and forms part of a wider ecclesiastical complex that includes a defined enclosure. The stone wall surrounding the burial ground curves noticeably around its southern sector, and this curve is thought to reflect an older internal boundary within the ecclesiastical enclosure itself, a common feature of early Irish monastic sites where different functional zones, for prayer, burial, agriculture, or the accommodation of visitors, were separated by banks or walls. The slight deviation in the wall line here preserves, in stone, a spatial logic that may predate any of the structures now visible above ground.