The Expo 7 occurrence is located at an elevation of approximately 1020 metres on the southeast side of South Whiteman Creek.

Regionally, the area is underlain by volcanics, mudstone, siltstone, shale and fine clastic sedimentary rocks of the Devonian to Triassic Harper Ranch and(?) Nicola groups, which are intruded by Middle Jurassic granitic rocks of the informally named Terrace Creek batholith. Eocene Coryell quartz latite porphyry to syenite plugs and dikes intrude the igneous and sedimentary rocks, and volcanic rocks of the Eocene Penticton and Kamloops groups overlie them.

Locally, an area of strong northwest-trending shearing in altered argillaceous tuffs and intermediate flow breccias cut by felsic intrusives hosting chalcedonic quartz veins with gold and silver values. Also, in the area, minor molybdenite is reported in a siliceous granite near an amethyst-bearing carbonatized and chloritized dacite porphyry dike.

In 1988, two samples (53762 and 53765) assayed 1.4 and 1.7 grams per tonne gold with 35.6 and 35.9 grams per tonne silver (Assessment Report 17882).

During 1986 through 1989, Pacific Northwest Resources Inc. completed programs of prospecting; silt, soil and rock sampling; geological mapping and a self-potential survey on the area as the Expo 7 and 8 claims. Also, in 1989, Duke Minerals Ltd. completed an 18.0 line-kilometre combined ground electromagnetic and magnetic survey on the area immediately south east as the Niki property.