The area is underlain by the northwest trending contact of Vancouver Group, Upper Triassic Quatsino Formation limestones ("lime- belt") and Karmutsen Formation andesites with the Jurassic to Tertiary Coast Plutonic Complex.

Several areas of chalcopyrite in quartz veins were investigated by Prince Stewart Mines on the Contact 1,2 and 6 claims (various reports by Sheppard). The Wing showing on Contact 1 and/or 2 is a shear containing chalcopyrite, bornite, gold and silver. The best chip sample from this zone assayed 3.4 grams per tonne gold, 36.0 grams per tonne silver and a trace of copper over 0.9 metres (Sheppard, 1972). An old shaft about 30 metres deep that had been driven on a quartz vein up to 0.6 metres wide was located on Contact 1. This vein was mineralized with pyrrhotite, pyrite and chalco- pyrite.

A "random chip" sample from the Hall showing on Contact 6 con- tained 168 grams per tonne gold and 83 grams per tonne silver (Sheppard, 1972). This chip was derived from a 2.4 by 0.6 metre area composed of a quartz vein up to 1.2 metres wide, occurring at the contact between limestone and andesite.