The claims are underlain by Lower Jurassic Hazelton Group volcanics comprised of andesitic to rhyolitic flows, tuff and breccia. The volcanics are intruded by a Late Cretaceous to Tertiary granodioritic to quartz-monzonitic stock with associated dikes and quartz veins.

Mineralization in the dikes consists of pyrite, magnetite, bornite, chalcopyrite, chalcocite with minor galena, sphalerite and molybdenum. The gangue minerals are mainly quartz, calcite and epidote.

A quartz vein, 0.15 metres wide and 10.7 metres long, crosscuts green andesite striking 075 degrees and dipping south. The vein hosts black sphalerite, chalcopyrite and secondary malachite and azurite. In 1973, chip samples across the vein assayed: 0.87 to 2.4 per cent copper, and 26.7 to 72 grams per tonne silver (Assessment Report 4890).

A shear zone, 0.9 metres wide and 2.4 metres long, in the vol- canics hosts mineralizing fissure infilling comprised of bornite and malachite. In 1973, chips across the shear assayed: 30.7 to 32.8 per cent copper and 4,780 to 6,460 grams per tonne silver (Assessment Report 4890).