Uncovered on a north-east-facing slope at Coolmore, the feature resists easy classification: it looks like a kiln, but it may not be one.

The pit came to light in 2010 during excavations carried out ahead of the N9/N10 Waterford to Powerstown Road Improvement scheme. It was roughly circular, measuring around 1.78 metres long, 1.53 metres wide, and just 0.31 metres deep, with a linear flue-type channel extending northward from it for approximately 2.61 metres. The oxidised, fire-reddened base of the pit suggested sustained heat, and the overall form is consistent with a cereal-drying kiln, a type of simple stone or clay-lined structure used in medieval Ireland to dry grain before grinding or storage. The problem is that no charred grain was found, which removes the most direct evidence for that interpretation. The excavators were left with two alternatives: a basic domestic hearth, or a pit used for charcoal production. Radiocarbon dating of charred oak bark placed the activity firmly in the medieval period, returning a date of 1216 to 1268 cal AD. Three further pits were recorded about five metres to the south, and these may belong to the same episode of activity, suggesting a small working area of some kind rather than an isolated feature.