The dominant host rocks in the Ridge zone area are andesitic volcanic breccias. Conspicuous augite phenocrysts in these rocks are diagnostic of a stratigraphic position within the Stuhini Group.

The Ridge zone, situated 300 metres north of the AW zone is underlain by andesite breccias. The zone comprises a 1-metre wide quartz-calcite-barite vein with galena, pyrite and lesser chalcopyrite mineralization that strikes 115 degrees and dips 85 degrees to the southwest. The vein is located within sericite quartz pyrite alteration that trends northeast. Grab samples collected by Tantalus Resources Ltd assayed up to 5.38 grams per tonne gold (Assessment Report 23686).

See Goat Trail (104B 172) for related details of specific West Nunatak work history, and Treaty Gossan (104B 078) for detailed history of the Treaty Creek property.