Greenstones and recrystallized limestones, of probable Permian age, strike 050 degrees and dip 65 degrees northwest. These rocks are sheared and metamorphosed by the emplacement of granodiorite of the Cretaceous to Tertiary Coast Plutonic Complex.

Silicified and epidotized shear zones contain sparse pyrite, chalcopyrite, bornite and magnetite. A 1.7 metre chip sample of the main shear zone assayed 1.3 per cent copper, 6.9 grams per tonne silver and trace gold (Minister of Mines Annual Report 1929).