It has possible linear features extending southward from it. And yet if you were to walk right over it, you would see nothing at all. The enclosure exists, for practical purposes, only from the air.

The site was identified from an aerial photograph, a single frame on a Geological Survey of Ireland roll, and has not been detected at ground level. Circular enclosures of this kind are a common enough feature of the Irish archaeological landscape; they are generally understood as the remains of ringforts, the enclosed farmsteads that were the dominant form of rural settlement from roughly the early medieval period onward, though some enclosures predate that era considerably. What makes this one quietly interesting is precisely its invisibility. The circular form and the possible linear extensions, which may represent field boundaries, trackways, or other associated features, survive only as cropmarks or soil variations legible to a camera looking downward at the right angle, in the right season, under the right light. The slope, the grass, the unremarkable field offer no clue.