The area is underlain by Upper Triassic Karmutsen Formation basalts of the Vancouver Group. A shear zone occurs along the contact of volcanic rock and metamorphosed argillite. Mineralization is principally chalcopyrite within a quartz gangue. Chalcocite and bornite also occur.
Up to 55 metres of underground development work was completed on the Wanderer up to 1922. A sample taken from the dump assayed 15.5 per cent copper, 61.71 grams per tonne silver and trace gold (Minister of Mines Annual Report 1922).