The Gazoo (Southwest Stock) 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 is intruded by a biotite-muscovite quartz monzonite stock. The stock is well jointed but generally unaltered. Molybdenite occurs in quartz veins cutting the stock. One quartz vein contains beryl. Sericite alteration occurs along fault margins.

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.