No earthwork rises above the surface, no stone marks the spot, and a walker crossing the field would notice nothing at all. The only way to see it is from the air, or more precisely, from a satellite image taken on a specific summer's day in 2018.

What appears on that Google Earth image is a cropmark, a phenomenon that occurs when buried features affect the soil's ability to retain moisture, causing the vegetation above to grow differently from its surroundings. Filled-in ditches tend to hold more water than the compacted material around them, producing a lusher, darker stripe of crop or grass that becomes legible only from altitude, and typically only in dry conditions when the contrast is sharpest. In this case, the cropmark reveals a roughly circular area with an internal diameter of about seven metres and an external diameter of around fifteen metres, defined by a wide fosse, that is, a ditch. This form is consistent with a ring-ditch, a monument type generally associated with prehistoric funerary or ritual activity, often the eroded remnant of a burial mound whose central mound has long since flattened. The site sits on a fairly level landscape with the River Slaney running roughly two hundred metres to the west. It was first identified by Simon Dowling, working from aerial imagery rather than any ground survey.