Each one is a fulacht fia, the most common type of prehistoric monument found across Ireland: a low, crescent-shaped mound built up from fire-cracked stone and charcoal, the accumulated debris of repeated episodes of boiling water by dropping heated stones into a trough. The process is ancient and practical, and the mounds left behind are so modest in appearance that they are easily dismissed as natural rises in the ground.

The site in question sits in boggy ground immediately north of a stream running roughly northwest to southeast. Its companion sites are close: one lies on the opposite bank to the south, another roughly twenty metres to the southeast, a fourth about fifty metres to the south-southeast, and a fifth around a hundred metres to the southwest. This density is not especially rare in Ireland, where fulachtaí fia tend to favour low-lying, wet ground near reliable water sources, but five within such a tight radius does prompt questions about the intensity or duration of activity here. The mound itself is described as overgrown, its burnt material slowly merging into the surrounding vegetation, which is the typical fate of sites that have no masonry to protect them from time and encroaching marsh.