The Lucky Strike occurrence lies north of the Zeballos gold camp, in an area underlain by Lower Jurassic Bonanza Group basaltic to rhyolitic volcanic rocks and Upper Triassic Vancouver Group Quatsino Formation limestone. Dioritic to granodioritic Jurassic plutons of the Zeballos intrusion phase of the Island Plutonic Suite have intruded all older rocks.

The Lucky Strike occurrence consists of two shear veins hosted by Late Jurassic granodiorite near the contact with Quatsino lime- stone: 1) The Vancouver Girl shear, also referred to as Lucky Strike shear, strikes 030 degrees and dips 80 degrees south. The average width is 25 centimetres. The zone consists of locally silicified sheared diorite. Minerals include pyrite, chalcopyrite and free gold and three samples over 20 centimetres each averaged 7.8 grams per tonne gold (Property File - Jobin, F., 1938, page 1). Bulletin 27, page 131, states that the zone follows a 60 centi- metre wide feldspar porphyry dyke that traces a zone of diorite- granodiorite breccia on a 047 degree strike and an average width of less than 15 centimetres. 2) The Free Gold or Lucky Strike Vein is located 400 metres north of the Vancouver Girl and has been explored over 300 metres of its 043 degree strike. The vein is vertical and follows in places the wall of a mafic dyke. Width ranges from 4 to 15 centimetres. Vein material consists of locally oxidized quartz-pyrite-free gold. Assays between 2.7 and 113.8 grams per tonne gold are reported (Property File - Jobin, F., 1938, page 2).