The mound measures fourteen metres east to west and eleven metres north to south, rising only about sixty centimetres from the ground. To pass it without knowing what it is would be easy enough, which is part of what makes it worth pausing over.

The site is a fulacht fia, a type of prehistoric cooking place found in considerable numbers across Ireland. The characteristic horseshoe shape is formed from the accumulated debris of repeated use: fire-cracked and blackened stones, discarded after being heated and dropped into a water-filled trough to bring it to the boil. Meat, wrapped in straw or hide, would then be submerged and cooked. The mounds are almost always found near water, which explains the proximity of the well here. This particular site was first formally recorded by Broker in 1937, and the proximity of the stone-lined well suggests the two features may have functioned together, the well providing a reliable water source for whatever activities the trough supported. Fulachtaí fia are generally associated with the Bronze Age, though the term itself is medieval Irish, meaning roughly "cooking place of the wild" or "cooking place of the deer", and it has stuck as the standard archaeological shorthand even if the original meaning is debated.