No earthwork breaks the grass, no stone marks the ground, and a visitor standing on the spot would have no way of knowing that anything was ever there. What survives exists only on a single frame of aerial photography, taken in 1971, in which crop or soil differences in the flat grassland revealed the ghost of a small circular enclosure beneath the surface.

Circular enclosures of this kind are among the most common monument types in the Irish landscape. They were constructed across a vast span of time, from the Bronze Age through to the early medieval period, and served a range of purposes including settlement, agriculture, and ritual. Without excavation it is rarely possible to say which period a particular example belongs to, or what its precise function was. The Ballysheehan site sits on level ground with open views in every direction, a setting that would have suited either a defended farmstead or some form of enclosed activity that benefited from clear sightlines across the surrounding land. The aerial photograph that recorded it belongs to the Cambridge University Collection of Aerial Photography, a series that captured enormous amounts of Irish archaeological detail during low-altitude survey flights in the mid-twentieth century, documenting many features that have since become invisible even from the air.