In the area of the Lead Empire showing, Early to Middle Eocene composite stocks intrude Middle Jurassic Hazelton Group and Lower Cretaceous Skeena Group rocks in the area. The stocks vary quartz monzonite to quartz diorite.
Mineralization occurs in a diorite stock and in altered Jurassic Hazelton Group rocks adjacent to the intrusion. Galena, sphalerite, pyrite, and molybdenite occur in a quartz-vein stockwork, while covellite, chalcopyrite and pyrite occur as disseminations.
Refer to Berg (093L 046) for geological and work history details of the Berg property which it encompasses the Lead Empire showing.