The enclosure at Shanclogh has been levelled, the land reclaimed, and yet its circular outline persists as a faint trace in aerial photography, the kind of ghost that only becomes legible when you know what you are looking for.

When first noted on the 1922 edition of the Ordnance Survey six-inch map, the feature was tentatively identified as a possible cashel, a term for a stone-walled ringfort of early medieval origin typically used to enclose a farmstead or protect livestock. On closer inspection, the structure turned out to be a roughly subcircular enclosure, measuring approximately 55 metres east to west and 45 metres north to south, built from a single drystone wall and broken at several points by poreens, which are narrow gaps or passages in a field boundary. The interior had been subdivided into small animal pens, and a wider opening of about 2.5 metres at the southern end gave onto a lane. The later use, then, was practical and agricultural rather than defensive or residential. But the near-perfect circularity of the whole thing, visible in aerial photographs, raised a more interesting question: whether whoever built or rebuilt this enclosure was working along the line of something much older, an earlier cashel whose geometry shaped the land so thoroughly that it survived, at least as an outline, long after its original purpose was forgotten. By 2012, aerial imagery showed the enclosure itself had been cleared away during land reclamation, yet even then the circular form remained faintly legible in the ground.