The area is underlain by a highly contorted and metamorphosed assemblage of felsic to intermediate volcanics, limestone, shale, and minor conglomerate of the Paleozoic Eagle Bay Formation. Rock units include siliceous metasediments overlain by andesite, chlorite schist, argillite, phyllite and carbonate.

Disseminated chalcopyrite, pyrite, pyrrhotite, sphalerite, manganese and magnetite occur in a calc-silicate horizon within argillite and phyllite. A 2.0 metre chip sample assayed 0.019 per cent copper (Assessment Report 13557). About 1350 metres to the west-southwest, an actinolite hornblende skarn contains chalcopyrite.