Property is underlain by intermediate to acidic volcanic and volcaniclastic rocks of probable Permian Anarchist Formation (?). These layered rocks have been intruded by Jurassic to Cretaceous quartz diorite bodies and dykes. Pyrite, pyrrhotite and arseno- pyrite, with minor sphalerite, chalcopyrite and galena, occur in the volcanic and intrusive rocks. This gold-bearing mineralization occurs as siliceous irregular veins, veinlets and segregations.