Vancouver Group, Upper Triassic Karmutsen Formation consisting predominantly of basalt is overlain by limestone of the Jurassic to Triassic Kunga Group. The rocks are intruded by diorite sills related to the Middle to Late Jurassic Burnaby Island Plutonic Suite. A north trending, 3-metre long, 1-metre wide zone of massive magnetite with chalcopyrite, pyrite and pyrrhotite occurs in chlorite and epidote altered porphyritic andesite. Assays of 12 to 20 per cent copper, 53 grams per tonne silver and 8.9 grams per tonne gold occur across a narrow width. A drill hole by Falconbridge Limited intersected a 30-centimetre wide zone of massive sulphides and assayed 3.3 grams per tonne gold, 31.3 grams per tonne silver and 0.5 per cent copper (Assessment Report 14818).