The upper courses are brick, the base substantial, and the whole structure sits at the centre of what was once a working mine complex, its isolation on the ridgeline giving it an oddly monumental quality that the surrounding ruins do little to explain away.

The site appears on the Ordnance Survey six-inch map of 1842 as "Cappagh Mine", which places its active life firmly in the era when West Cork was dotted with copper and other mineral workings, many of them drawing investment and expertise from Cornwall. The surviving remains tell a story of at least two distinct phases of occupation: a pair of early nineteenth-century two-storey dwellings, likely housing for mine officials or skilled workers, and the more fragmentary remains of later nineteenth-century terraced dwellings of the kind built for larger numbers of ordinary labourers. The road that once served the mine ran south-east toward Audley Cove, passing a magazine, a small purpose-built structure used for storing explosive charges, on the way down to the coast. That combination, a working chimney stack, housing of different periods and status, a powder magazine, and a coastal outlet, suggests a mine that was organised, export-oriented, and active across several decades rather than a brief speculative venture.