The term refers to a type of prehistoric cooking site, found in great numbers across Ireland, typically consisting of a horseshoe-shaped mound of fire-cracked stone and charcoal built up beside a water source over repeated use. The cooking method involved heating stones in a fire and dropping them into a water-filled trough to bring it to a boil. What makes the Laraheen Hill example quietly puzzling is that, by the time anyone looked closely at the ground, the mound itself had effectively vanished.

When the site was recorded in 1939, it presented as a C-shaped mound, between two and four metres wide and no more than half a metre high, open to the east, sitting close to the source of a small east-west stream and roughly 450 metres from the River Bann. A researcher named Ranson, writing in 1945, noted the location under the older placename Fintracawn, a detail that preserves something of the local naming tradition even as the physical remains were fading. The stream that once made the spot suitable for prehistoric use still rises here, but it now emerges through a stone-lined, lintelled well, a later intervention that has overlaid whatever earlier arrangement existed. No surface trace of the burnt mound remains visible today, leaving the 1940 map notation as the most tangible evidence that anything of archaeological significance was ever here at all.