The area is underlain by the Lower Cambrian part of the Eagle Bay Formation consisting of siliceous and graphitic phyllites, phyllitic limestones and greenschist. The metavolcanics and metasediments generally strike northeast and dip 10 to 40 degrees northwest. The rocks are cut by Late Cretaceous or Early Tertiary quartz-feldspar porphyry and mafic dykes with northerly trends.

Several thin and discontinuous zones of massive sulphides con- taining pyrrhotite, pyrite, magnetite, chalcopyrite, sphalerite, and galena are concordant with the metavolcanics and metasediments. Minor galena, chalcopyrite, and sphalerite mineralization occurs in a 17 metre wide zone within intercalated argillite and rhyolite. The mineralization is associated with silicification and chloritiz- ation

A sample of the main zone gave 3.35 grams per tonne gold, 2.9 grams per tonne silver, 0.05 per cent lead, 0.04 per cent copper, and 0.008 per cent zinc (Assessment Report 13514).