The claim is underlain by Lower Jurassic Rossland Group, Elise Formation consisting of greenstone, volcanic breccia, volcanic conglomerate and sandstone. These are intruded to the north by the Rossland monzonite, an east trending stock of biotite-hornblende- augite monzonite. A small syenitic mass of the Middle Eocene Coryell Intrusions intrudes the strata to the east.

Mineralization occurs in quartz-carbonate veinlets which host minor arsenopyrite and pyrite in the altered Rossland Group rocks. Associated with the veinlets are minor amounts of disseminated scheelite and pyrite with the wallrock.