Underlying volcanics, which strike 110 degrees and dip 60 degrees south, consist of andesite, dacite and tuffs of the Jurassic Hazelton Group. The rocks are cut by albite and lamprophyre dykes and quartz veins mineralized with tetrahedrite, silver, chalcopyrite, galena, pyrite and bornite. A vein, up to 1 metre wide has been traced intermittently for 1400 metres in an east direction.

The main showing is a quartz vein averaging 30 centimetres wide and 60 metres long with sparse tetrahedrite, galena, pyrite and native silver. A 15 centimetre sample assayed 4457 grams per tonne silver, 10.3 grams per tonne gold and 2.4 per cent copper (Minister of Mines Annual Report 1923). The vein is offset by minor cross faults.

A 30 centimetre wide, 30 metre long vein containing narrow seams of tetrahedrite and bornite lies 520 metres to the east. A 33 centi- metre channel sample assayed 333 grams per tonne silver and 1.0 per cent copper (Geological Survey of Canada Memoir 212).