Measuring somewhere between six and eight metres across, it rises only slightly from the surrounding ground, its irregular shape composed of angular stone fragments mixed through dark brown soil. The tentative identification as a burnt mound places it in a category of prehistoric feature found widely across Ireland, though imperfectly understood even now.

Burnt mounds are among the most common archaeological monuments in the Irish landscape. They are thought to be the accumulated debris from a cooking or heating process in which stones were fired and then plunged into water to bring it to the boil, repeated until the stones cracked and became useless, then discarded into a characteristic heap. The Fauleens example, if that is indeed what it is, would have been one small node in a pattern of activity tied to this particular watercourse. What makes its position quietly interesting is the company it keeps. Another burnt mound lies roughly forty metres to the north-west, and a rath, a roughly circular earthen enclosure typically associated with early medieval settlement, sits about sixty metres to the north-east. Whether these features were in use at the same time is unknown, but their proximity suggests that this stretch of ground in Fauleens was returned to, and used, across a considerable span of time.