This one in Hundredacres West, County Limerick, does the opposite. A ring barrow, a type of prehistoric burial monument typically consisting of a central mound or depression enclosed by a circular ditch, known as a fosse, and an outer earthen bank called a berm, this example measures roughly 21 metres north to south and 17 metres east to west. It sits in poorly drained pasture and is almost entirely invisible to anyone standing beside it. The only way to appreciate its shape has been from the air, and even then, only under the right conditions.

What makes this site particularly interesting is how entirely it depends on aerial photography for its legibility. Recorded by researcher Fiona Rooney and uploaded to the national monuments record in July 2020, the barrow was identified through cropmarks, the faint variations in vegetation colour and growth that reveal buried features beneath the surface when viewed from above. A Digital Globe orthoimage taken between 2011 and 2013 showed the monument as a cropmark, though the internal depression was not discernible on that image. A Google Earth image from June 2018 rendered it barely visible, while another taken just months earlier, in February of the same year, showed the outline far more clearly. Aerial survey imagery captured by the Archaeological Survey of Ireland in August 2000 also produced a clear result. The site lies approximately 25 metres south-east of a second, larger and more visually prominent barrow, suggesting this area may have held significance across a considerable span of prehistoric time.

There is nothing on the ground to mark the spot, and the waterlogged pasture makes casual investigation uninviting in any season. The monument's form, that shallow central depression enclosed by its fosse and berm, is best appreciated by examining the archived aerial imagery rather than by visiting in person. For those with access to the national monuments database or satellite image archives, comparing the February and June 2018 Google Earth captures side by side is quietly instructive, illustrating how much a few months and a change in ground conditions can alter what a landscape chooses to reveal.