It is not much to look at on paper: roughly fifteen metres wide and less than a metre high. But its setting, waterlogged and peripheral, is precisely what makes it worth a second thought.

When the mound was recorded in 2012, investigators suggested it may be a fulacht fia, a type of prehistoric cooking site found widely across Ireland and Britain. The term refers to a horseshoe-shaped mound of fire-cracked stones, typically found beside a water source or in boggy ground. The usual interpretation is that stones were heated in a fire, then dropped into a water-filled trough to bring it to a boil, though theories about their use range from cooking to bathing to textile processing. The association with wet ground is characteristic; fulachtaí fia are almost routinely found beside streams, springs, or marshy hollows, which makes the Leagard mound's location consistent with that identification. The site was noted by Fitzpatrick and Rooney during monitoring works, though whether it has been excavated or examined further since does not appear to be recorded.