What betrays it is the soil itself. When crops grow over buried features, the disturbed earth and the remnants of old ditches cause plants to thrive or struggle in patterns that become legible only from above, and it is precisely this kind of cropmark that reveals the presence of a rath here, sitting quietly at the eastern edge of a low plateau.

A rath is an early medieval ringfort, typically a circular enclosure defined by one or more earthen banks and accompanying ditches, used as a farmstead or high-status residence between roughly the fifth and twelfth centuries. At Ballytegan, aerial photographs from both 2005 and 2006 show the outline of the enclosure defined by a wide fosse, the term for the ditch element of such a structure, running to about five metres across. That the fosse reads so clearly from the air, even where nothing protrudes above the surface, suggests it was once a substantial feature. What makes the location particularly interesting is its immediate neighbourhood: a ring-ditch lies roughly thirty-five metres to the north-east, and a second rath sits approximately a hundred and twenty metres to the south. Ring-ditches are circular cropmark features often associated with prehistoric funerary monuments, so the cluster of different enclosure types in close proximity points to a landscape that saw repeated, layered use across long stretches of time, with one community's field boundary or farmstead placed near, or even because of, the remains of something older.