The Keevil zone is located near the eastern margin of the Stikinia Terrane east of Granite Mountain in south central British Columbia. The dominant rock types in the region are metabasalt, limestone and argillaceous metasediments of the Mississippian to Triassic Cache Creek Group. These are intruded by the dioritic to quartz dioritic Granite Mountain Pluton and the (?)Cretaceous Sheridan Creek Pluton.

Mineralization in the pluton consists mainly of pyrite, chalcopyrite and molybdenite deposited in stockworks in four mineralizing phases during deformation and metamorphism.

The Keevil zone is located in the eastern portion of the Granite Mountain Pluton. Chalcopyrite, malachite and pyrite occur as disseminations and coatings on joint surfaces in the sheared quartz diorite. Several narrow but strong quartz veins carry molybdenite mineralization. Epidote alteration is widespread.