The West 8 showing, consisting of a skarn zone containing bands well mineralized with pyrite and chalcopyrite over widths of up to 9 metres, is located 2 kilometres west of Lunar Creek and roughly 24 kilometres north of the confluence of Lunar Creek with Geese Creek, north of the Stikine River. Dease Lake is 135 kilometres to the northwest.
Regionally, the West 8 showing lies on the western edge of the Omineca Belt near the Kutcho fault, marking the boundary with rocks of the Intermontane Belt. The showing is located in a fault bound wedge of Takla Group rocks, along the margin of an unnamed Late Triassic to Early Jurassic granitoid pluton. Takla Group rocks consist of middle greenschist to lower amphibolite grade volcanic, volcaniclastic, and sedimentary rocks; locally subdivided into augite and plagioclase porphyroblastic actinolite schists and amphibole- biotite wacke or tuff, and well foliated amphibolite (Open File 1990-12). At this showing the composition of this pluton is hornblende monzonite and biotite quartz monzonite. To the west lies the Middle Triassic Lunar Creek Complex consisting of ultramafic rock.
The West 8 showing is underlain by two main rock types hosted in an area of complex faulting, resulting in many small fault bound wedges of intrusion and/or well foliated amphibolite of the Takla Group. Hornblende monzonite and biotite-quartz monzonite and monzodiorite comprise intrusive rocks.
Mineralization at the West 8 showing consists of veins and stringers of massive sulphides (mostly pyrite and sparse chalcopyrite) cutting skarn. The skarn consists of well interlayered monzonite, schist and a dense calcsilicate rock consisting of epidote and yellow (andradite) garnet. The best mineralization occurs in bands up to 9 metres wide. Sampling done in 1970 across one zone yielded 0.42 per cent copper over 7.6 metres (Assessment Report 3835).
The area has been explored in conjunction with the nearby West 16 (MINFILE 094E 010) occurrence and a complete work history of the area and property can be found there.
