The Gazoo (Southeast Gulley) 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 0.5 to 8.0 centimetre-wide quartz-pyrite-sericite veins at a density of 1 per metre over 100 metres and locally vein density reaches 6 per metre. Fine grained, disseminated molybdenite occurs in 10 per cent of the veins. Several intrusive phases and fault zones occur in the vicinity. Chalcopyrite and molybdenite are disseminated in the quartz monzonite. Argillic alteration is pervasive, sericitic alteration envelopes veins and chlorite occurs as fracture fillings.
A selected grab sample (78TMT854) from a 4 centimetre wide vein assayed 2700 parts per million (0.27 per cent) molybdenum. About 214 metres south down the gulley from sample 78TMT854, another selected rock chip sample from a 8 centimetre wide pyrite-quartz-sericite-molybdenite vein assayed 0.008 per cent MoS2 (Assessment Report 7148).
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.