The Cougar showing is located, near the western margin of the Quesnellia Terrane, at the contact of Mesozoic rocks with the Cache Creek Group of the Stikinia Terrane. The contact is marked by a zone of faulting which is the southern extension of the Pinchi Fault system. The mineralization is interpreted to occur within rocks of the Quesnellia Terrane. However, shearing and faulting suggests that the mineralized zone is close to the contact between the Quesnellia and Stikinia Terranes. Mineralization consists of sparse pyrite, chalcopyrite, malachite and azurite within a 1.5 to 5.2 metre wide quartz vein. The footwall consists of thickly bedded argillite and the hanging wall consists of sheared diorite. Trace gold and silver values have been reported associated with the sulphide mineralization.