The Wasi Ridge occurrence is situated at the south end of the ridge separating Wasi and Discovery creeks, approximately 35 kilometres west-northwest of Germansen Landing. The area was evaluated in 1991 by Golden Rule Resources.

The ridge is underlain by a thick succession of volcaniclastic/ pyroclastic rocks assigned to the Upper Triassic Willy George sequence of the Takla Group which have been intruded by various phases of the Late Triassic to Early Cretaceous Hogem Intrusive Complex. To the west, these mesozonal plutonic rocks form an elongate batholith, extending from Chuchi Lake, north to the Mesilinka River.

At the occurrence, disseminated and fracture controlled sulphide mineralization, averaging less than 1 per cent by volume, is hosted by very fine grained, siliceous, cherty, bedded tuff at and near the contact with monzonitic intrusions. Pyrrhotite is the dominant sulphide, followed by pyrite and minor chalcopyrite. Epidote alteration with attendant calcite and rarer quartz veining is common throughout these rocks.

The best assay, 0.0878 per cent copper, came from a grab sample of cherty tuff carrying disseminated pyrrhotite with minor pyrite exposed for 50 metres along the ridge (Assessment Report 21428, page 22).

Several other small copper showings occur along Wasi Ridge at sample localities 74920 and 74922, however, they have lower copper values associated with them. These copper showings and many of the others (shown in maps of Assessment Report 21428) are related to the Takla Group-Hogem Intrusive Complex contact.