The area geology consists of Upper Triassic Vancouver Group, Karmutsen Formation andesites and minor limestone in contact to the southwest with Upper Triassic Vancouver Group, Quatsino Formation limestone.

Sphalerite and minor chalcopyrite in irregular stringers and pods are present in narrow silicified limestone of the Karmutsen Formation. The mineralization is found in old trenches for 30 metres in an east- west direction. Sphalerite is also exposed in a creek 85 metres to the southwest.