The mound never appeared on any edition of the Ordnance Survey six-inch map, which means it passed through the entire modern era of Irish cartography without official acknowledgement. It only came to light when reclamation works levelled the rise, exposing a concentration of stone fragments packed into a matrix of dark, black soil.

What this describes is a burnt mound, a type of prehistoric site found widely across Ireland and Britain, typically dating from the Bronze Age. The basic idea behind them is straightforward: stones were heated in a fire and dropped into a water-filled trough to bring it to the boil, then discarded when they cracked and became useless. Over time, the rejected fragments accumulated into a low, kidney-shaped or horseshoe mound, usually dark in colour from the scorching and often rich in charcoal. They are almost always found close to water, which is precisely the setting here, beside a small stream in rough, poorly-drained pasture. What the troughs were actually used for, whether cooking, bathing, textile processing, or something else, remains a matter of ongoing discussion among archaeologists. The Dunowla example fits the type closely, even though its physical form has now been disturbed by the same agricultural activity that revealed it.