That uncertainty is, in a way, the whole story. An aerial photograph taken in 1974, referenced as GSI S. 600/1, caught what appeared to be the outline of an enclosure on upland terrain with open views in every direction. It was the kind of faint mark on the landscape that aerial survey has, over the decades, revealed in considerable numbers across Ireland, where the crop, soil, or grass above a buried feature can betray its shape to a camera even when nothing is visible at ground level.

By the time anyone came to investigate, a coniferous forestry plantation had been established across precisely this ground, with the suspected monument sitting at its centre. The plantation, by all appearances, took no account of what might lie beneath. If the enclosure was ever a physical reality rather than a trick of light or soil variation, the machinery involved in preparing the ground for timber production most likely destroyed it. What the 1974 photograph recorded may now exist only as that photograph, a single frame of evidence for something that cannot be confirmed, measured, or visited in any meaningful sense.