No earthwork rises from the grass, no obvious depression interrupts the surface, and there is nothing to suggest that beneath the soil lies the faint outline of a large prehistoric or early medieval enclosure. The only way to see it at all is from above, and even then it took the particular conditions of a summer day in 2018 to make it legible.

What emerged in aerial photography captured via Google Earth on 2 July 2018 is a cropmark, roughly D-shaped in plan, measuring approximately 66 metres north to south and 56 metres east to west. Cropmarks appear when buried ditches or banks influence the growth of whatever crop or grass sits above them; the buried features retain moisture differently from the surrounding soil, and in dry conditions those differences show up as subtle variations in colour and vigour. The record of this particular feature was compiled by Caimin O'Brien, drawing on details provided by Jean-Charles Caillère, and uploaded in March 2020. The D-shaped plan is a form associated with enclosures of various periods in Ireland, though the notes do not attribute a specific date or function to this one.

There is no marker, no information board, and no formal access point for this site. The enclosure is not visible from the road or on foot in the field, and a visit in the conventional sense is not really possible. The most useful way to engage with it is through the aerial image itself, which shows the cropmark clearly against the surrounding ground. For anyone curious about how much of the Irish landscape remains effectively invisible except from the air, and under the right seasonal conditions, Fanningstown is a quietly instructive example of exactly that.