These features, known as burnt mounds, are among the most common yet least understood monuments in the Irish archaeological record. They consist largely of fire-cracked stones, typically dumped beside a trough or pit, and are thought to relate to the boiling of water, possibly for cooking, bathing, or some industrial process. They date most often to the Bronze Age, though the exact purpose of any individual example remains a matter of discussion among specialists.

The Charlesland site was excavated under licence in 2003 and classified as a possible burnt mound, that careful qualifier suggesting the excavation raised questions as much as it answered them. The work is referenced in a 2006 publication by Molloy, which places it within a wider body of research into prehistoric activity in the area. Beyond that, the record is thin, which is itself telling. Burnt mounds are often encountered during development-led excavations, turning up when ground is broken for roads or housing, and their archaeology can be difficult to interpret once disturbed. That this one was investigated at all means something of its story was recovered, even if the full picture remains incomplete.