The Dave occurrence is located on the north side of Thane Creek in the Omineca Mountains, approximately 200 kilometres northwest of the community of Fort St. James.

The area lies centrally in the Omineca Belt within the northwest trending Quesnel Terrane. The showing is hosted in Upper Triassic Takla Group andesitic flows and tuffs near the contact with monzonites of the Early Jurassic Hogem Plutonic Suite. The Takla rocks are divided by a fault into the Upper Triassic Plughat Mountain Formation to the west, and an unnamed Upper Triassic to Lower Jurassic unit to the east, possibly equivalent to the Chuchi Lake Formation (Takla Group) (Fieldwork 1991, pages 137-139).

The main showing consists of chalcopyrite, magnetite, and specularite infilling a one-metre-wide silicified fracture zone within propylitically altered andesitic flows. Other showings in the area consist of limonitic gossans occurring along fault and fracture planes. Several quartz-epidote and quartz-specularite veins with disseminated chalcopyrite are also noted.

In 1973 and 1974, a geological, geochemical (436 soils) and ground magnetometer survey were completed on the Dave group of claims on behalf of Pechiney Development Ltd. In addition, three short Winkie diamond-drill holes were put down totalling 29.5 metres.