The centrepiece is a three-storey engine house, stone-built and gabled to the north, with a beam support wall to the south that hints at the heavy machinery it once held. Most striking is the chimney on the north-east corner, a circular stack climbing to around 24 metres, its lower courses in stone and its upper section finished in brick, a detail that speaks to phased construction and the practical realities of keeping a working mine supplied and functional across many decades.

The Allihies area was the site of some of the most productive copper mining in nineteenth-century Ireland, drawing on Cornish engineering expertise and attracting miners and capital from across Britain and Ireland. Complexes like this one were part of a wider industrial geography across the Beara Peninsula, and this site sits within that pattern literally as well as historically. It is overlooked from the north-west by a separate mining complex on higher ground, and it looks down in turn towards Allihies to the south-west, each installation occupying its own terrace on the hillside. Projecting from the south elevation of the engine house are the remains of a smaller structure, roughly eight metres by six, while about 30 metres to the south-west a partially collapsed single-storey building arranged in an L-shape, roughly 17 metres along its longer axis, completes the complex.

The ruins are exposed and roofless, and the partial collapse of the L-shaped outbuilding gives some sense of how far the site has deteriorated since the mines fell out of use. The chimney, at 24 metres, remains the most visible element from a distance and serves as a useful locating feature when approaching across open ground.