The area is underlain primarily by pyroclastics and flows of rhyolitic to andesitic composition belonging to the Telkwa Formation of the Jurassic Age Hazelton Group. The showing is hosted by a dike or sill of feldspar porphyry and diabase near the intersection of a northeasterly trending fault and a fault with a general east-west strike. Mineralization consists of stringers and pods of specula- rite, chalcopyrite, pyrite and magnetite associated with quartz and skarn minerals.