A horizontal-wheeled mill, sometimes called a Norse or tide mill in the Irish context, works on a simple principle: water is directed onto a wheel mounted horizontally beneath the millstone, spinning it directly without the need for gearing. It was the workhorse technology of early medieval Ireland, and finding the physical remains of one, even partially, is relatively uncommon.

The site came to light in 1997 during drainage works, which exposed a millstone and eight individual timbers. Among them was a substantial beam, 2.6 metres long, with two rectangular mortice holes cut into one face, the kind of joinery that would have held the mill's structural frame together. Three planks remained undisturbed in the drain, lying parallel on a north-east to south-west axis with roughly 25 centimetres between each, and several large stones were found nearby. Though some timbers were displaced by the groundworks, local knowledge accounts for the rest: they were reburied. The millstone itself, a roughly circular sandstone block about 68 centimetres across and 28 centimetres thick, with a small central perforation through which the spindle would once have passed, was moved from its find spot and now sits beside a pump house and a farm track to the west.

The setting adds a layer of quiet significance. The depression sits beside a natural spring that serves as a holy well, and to the north-west a hill carries an ecclesiastical enclosure on its summit. Mills in early medieval Ireland were frequently associated with monastic or church settlements, which had both the resources to build them and the grain to grind. Whether that connection applies here is unknown, but the proximity is suggestive. The millstone, at least, is visible to anyone who knows to look near the pump house.