The area is underlain by argillite, greywacke, and conglomerate of the Jurassic to Cretaceous Bowser Lake Group. Narrow quartz veins lie conformably below a 35 to 75 metre wide conglomerate bed which strikes northeast and dips 50 to 75 degrees southeast. The veins are mineralized with galena, sphalerite, pyrite, and pyrrhotite, and minor chalcopyrite.

The Black Wolf quartz veins occur parallel to the bedding in underlying argillaceous sandstones and slates about 15 metres below a conglomerate bed which dips 15 degrees to the east. One vein occurs in a fracture cutting the conglomerate. The vein averages 30 centimetres wide, is 60 metres long, and strikes 110 degrees with a 40 degree north dip. A 30 centimetre sample assayed 36.3 grams per gold, 68.6 grams per tonne silver, 1 per cent lead, and 5 per cent zinc (Minister of Mines Annual Report 1927).

The concordant veins are 180 to 280 metres to the north and strike southeast. They are up to 120 metres long and 10 to 25 centi- metres wide. An 18 centimetre sample assayed 2.1 grams per tonne gold and 7.5 grams per tonne silver (Geological Survey of Canada Memoir 205). A one metre wide aplite dyke occurs 90 metres to the west and carries minor gold and silver.

In 1928, 23 tonnes of ore were shipped from this property. From this ore 1151 grams of gold, 3577 grams of silver, 1103 kilograms of lead and 1905 kilograms of zinc were recovered.