Andesitic flows of the Jurassic Hazelton Group are cut by numerous granodiorite and quartz-albite dykes.

A 3.6 metre wide volcanic breccia zone in andesite contains quartz veinlets and is mineralized with chalcopyrite. The zone, which is intermittently exposed for 100 metres, strikes 135 degrees and dips 40 degrees north. A representative sample of a similar parallel zone, 15 metres to the northwest, assayed 6.9 grams per tonne silver and 5.96 per cent copper (Geological Survey of Canada Memoir 212).

About 150 metres to the east, a 0.5 metre wide quartz vein containing chalcopyrite strikes 170 degrees and dips 35 to 50 degrees east. It is intermittently exposed for 230 metres and is offset by a northeast trending quartz albite dyke. A 35 centimetre channel sample assayed 10.3 grams per tonne silver and 3.12 per cent copper (Geological Survey of Canada Memoir 212).