The Western Copper occurrence is located 6 kilometres east of the head of Khutze Inlet, off Graham Reach.

Locally, a quartz-feldspar vein, striking 070 degrees and dipping 20 to 30 degrees south, along a narrow shear zone, occurs in granodiorite of the Coast Plutonic Complex. The vein is up to 2 metres wide and is traced for 1200 metres.

Mineralization occurs as isolated lenses of massive and disseminated pyrite, chalcopyrite, chalcocite, and covellite. The largest lens measures 10 metres long and 1.5 metres wide of which a 60 centimetre sample assayed 15.5 per cent copper, 212.6 grams per tonne silver, and 5.5 grams per tonne gold (Bulletin 1).

Recorded production for 1928 and 1928 from 215 tonnes mined was 5,319 grams of gold, 45,193 grams of silver and 30,812 kilograms copper. In 1987, Noranda completed a program of stream geochemical sampling. In 1988, Freemont Gold completed a program of underground and surface geological mapping and sampling. At this time a channel sample of massive pyrite returned values up to 329.2 grams per tonne gold (Assessment Report 18343).