The Sky 4 West occurrence is located at an elevation of approximately 1300 metres on an east-southeast–facing slope and approximately 250 metres northwest of Blue Sheep Lake.

The area is underlain by south-dipping carbonate of the Lower Cambrian Atan Group, which are overlain by phyllites of the Cambrian to Ordovician Kechika Group. The strata are intruded by a small Cretaceous(?) quartz-feldspar porphyry stock and associate dikes and sills. Intrusion of the stock has produced a doming of the sediments and an extensive zone of hornfels within the phyllites. Low sulphide garnet-diopside skarn and overlying cherty, light-green to brown hornfels are exposed at the dolomite-phyllite contact immediately west of the stock.

Locally, dolomite and/or limestone host a massive pod of pyrrhotite with lesser galena and sphalerite.

In 1981, two rock chip samples (81HT24 and 25) assayed 4.30 and 12.60 per cent zinc with 0.8 and 126.0 grams per tonne silver, respectively (Assessment Report 9661).

Work History

The area has been explored in conjunction with the nearby Johnny (MINFILE 104I 040) occurrence and a complete exploration history can be found there.