The Manners Zone on the Olympic Property is hosted in diorite of the Cretaceous to Tertiary Bendor pluton near the contact with Mississippian to Jurassic Bridge River Complex (Group). The Bridge River rocks consist of quartzite, chert, siltstones, andesites, rhyolites, felsic tuffs and breccias. Contact metamorphism from late felsic dykes, ie. younger than Bendor diorite, has produced a calc-silicate garnet-bearing skarn with quartz, magnetite, chalcopyrite and molybdenite.