This is a fulacht fia, a type of prehistoric cooking site found in the thousands throughout Ireland, typically Bronze Age in date. The standard interpretation holds that they worked as outdoor cooking facilities: a trough was filled with water, stones were heated in a nearby fire, and the hot stones were then dropped into the water to bring it to the boil. The sheer volume of cracked, fire-shattered stone that builds up through repeated use is what forms the characteristic mound.

The mound at Teeveeny measures 15.4 metres northwest to southeast and 13 metres north to south, rising to a modest 0.5 metres in height. Its opening, nearly 5.8 metres wide, faces northwest, and within that opening the ground drops away into a lower-lying, boggy rectangular area, which is thought to represent the position of the original trough. A short section of stone walling, 1.4 metres long and 0.4 metres high, survives on the south side of the opening, where it revets, or retains, the edge of the mound. It is a small structural detail, but it suggests a degree of deliberate construction beyond simply piling up spent stones.