The host rocks include Lower Jurassic Hazelton(?) Group sedi- ments and volcanics. The sediments consist mainly of deformed dark grey to orange weathering phyllite with contorted bedding planes dipping southeastwards. They are in contact with massive light colored rhyodacitic flows and tuffs of the Cretaceous Kasalka Group, Brian Boru Formation. The argillite is crosscut by rhyolitic and quartz porphyry dikes which dip steeply westward. Quartz stringers parallel the slaty cleavage and have been folded and dismembered. An orange-weathering massive andesite dike cuts the phyllite and is post tectonic. Orange-weathering siltstone and less foliated massive green fragmental tuff overlie the phyllites. Thick-bedded ash flow tuffs which contain flow banded rhyolite overlie the orange weather- ing siltstone. The two showings are referred to as the Main and West veins, respectively.

The Main vein is a bedded quartz stringer lode in the argilla- ceous phyllite. It is irregular and averages 46 centimetres in width. The quartz vein hosts disseminated pyrite, galena, sphalerite, chal- copyrite and minor tetrahedrite. A 130 centimetre channel sample taken in 1946 assayed 483.4 grams per tonne silver and 7.1 per cent lead (Minister of Mines Annual Report 1946, page 88).

The West vein consists of two parallel quartz stringer zones separated by 50 centimetres of sheared argillite and gouge. The vein network strikes south and dips 70 degrees west. The quartz stringers host disseminated pyrite, galena, sphalerite and chalcopyrite. A composite channel sample of the two stringer zones in 1946 assayed 6.9 grams per tonne silver and 1.2 per cent zinc (Minister of Mines Annual Report 1946, page 88).

In 1917, 6.4 tonnes of ore was mined and produced 19,448 grams silver and 3,175 kilograms lead.