In a field in Drinnanstown, County Kildare, there is a circle that nobody has excavated, touched, or even walked around with any particular purpose. It exists, for now, only as a faint discolouration in a crop, roughly ten metres across, visible not from the ground but from the sky.

The feature is a ring-ditch, a type of circular earthwork most commonly associated with prehistoric burial or ritual activity. Where a ditch was cut into the earth and later filled in, the soil composition changes subtly; crops growing above it absorb moisture or nutrients differently from the surrounding field, and under the right conditions, usually a dry summer when stress makes those differences visible, the outline of the original cut shows up in the growth. This particular ring-ditch came to light through aerial imagery captured on 28 June 2018, when Google Earth photographs recorded the cropmark clearly enough to allow identification. At approximately ten metres in diameter, it sits within the modest size range typical of such features, which in Ireland are often associated with Bronze Age or Iron Age burial traditions, though without excavation the date and function of any individual example remain genuinely uncertain.