Not a fairy ring or a prehistoric enclosure, but a tree-ring, a deliberate ornamental planting in which trees were arranged in a rough circle as part of a designed landscape, the kind of quiet, considered gesture that estate owners made during the eighteenth and nineteenth centuries to impose order and aesthetics onto their grounds. This particular example measured approximately 26 metres across, modest in scale but precise in intention.

What makes it quietly curious is the gap in the historical record. When the Ordnance Survey mapped Ireland at six-inch scale in 1839, this feature was not recorded at all, suggesting it either did not yet exist or was too new or too slight to merit inclusion. By the time the same map was revised in 1900, it had appeared, marked as a circular feature with trees inside, which is the standard cartographic shorthand for a tree-ring of this kind. Somewhere in the six decades between those two surveys, someone at Foulkscourt planted a ring of trees and left it to grow. Satellite imagery tells a less romantic story: the feature appears to have been levelled at some point, the circle flattened back into ordinary pasture, leaving almost no trace above ground.