Sphalerite and pyrrhotite occur as small seams along bedding planes in argillites of the Jurassic to Cretaceous Bowser Lake Group. The sediments are intruded by dykes related to a granitic stock to the northeast.

A sample taken from exploratory adits, in the area, returned values of 6.65 per cent zinc, 0.23 per cent copper and 4.8 grams per tonne silver and 0.21 per cent zinc, 0.23 per cent copper and 1.4 grams per tonne silver (Assessment Report 9147).