These are the remains of a prehistoric cooking place, typically consisting of a horseshoe-shaped mound of fire-cracked stone accumulated around a trough that would have been filled with water and heated by dropping in stones from a nearby fire. Thousands of them survive across Ireland, most dating to the Bronze Age, and their sheer number suggests they were used regularly and over long periods, though whether primarily for cooking meat, brewing, bathing, or some combination of all three remains a matter of ongoing debate among archaeologists.

The Cashel More example sits on a gentle south-west-facing slope, with a boggy area to the north-west. That relationship between fulachta fia and wet or marshy ground is characteristic of the monument type; proximity to a reliable water source was essential to how they functioned. The site measures approximately sixteen metres east to west and ten metres north to south, dimensions that place it comfortably within the typical range. Its visibility in ploughed ground suggests the mound material has been disturbed or spread over time by agricultural activity, which is a common fate for these low-lying earthworks.