The Gazoo (Knob Hill) occurrence is located near the confluence of Iverson and Toozaza creeks in the Cassiar Mountains of northwestern British Columbia, about 133 kilometres north of the community of Dease Lake.
Foliated biotite quartz monzonite of the Early Cretaceous Cassiar batholith contains 1 to 12 centimetre wide crosscutting quartz veins at a density of 1 per metre over 50 metres. Molybdenite occurs as bands of rosettes and disseminations in the veins and chalcopyrite and molybdenite occur disseminated in the quartz monzonite. Two 10-metre chip samples across the veins averaged 0.25 per cent MoS2 (Assessment Report 7148). Several intrusive phases and fault zones occur in the vicinity. Argillic and sericitic alteration are associated with the veins.
In 1978, Amax Potash Limited conducted geological mapping and collected a total of 406 soil, silt and rock chip samples from within the claims area.