The KEI West occurrence is located on the southeast-facing slope of a northeast-trending ridge, south of Petrie Creek and approximately 7 kilometres north of the southeast end of Redfern Lake.

The northern portion of the Redfern Lake area is underlain by a conformable package of Cambrian to Ordovician Kechika Group, Middle Ordovician Skoki Formation, an unnamed Upper Ordovician unit, Silurian Nonda Formation, Lower Devonian Muncho-McConnell Formation, Lower to Middle Devonian Stone Formation and Middle Devonian Dunedin Formation strata. To the east, this package is thrust over Dunedin and Stone Formations. These, in turn, are thrust over Devonian and Carboniferous Besa River Formation shale. The Dunedin Formation can be divided into a lower dolomite unit and an upper micritic limestone unit.

Locally, microcrystalline black limestone hosts calcite veins and stringers with associated trace galena mineralization.

In 1974, an outcrop grab sample (F-178) assayed 3.50 per cent lead (Assessment Report 5316).

Work History

In 1972, Vestor Explorations Ltd. completed a program of geological mapping and soil sampling on the area immediately south of the occurrence as the Chilly, Damn, Egg and Foo claim groups. The following year, Rio Tinto Exploration Canada Inc. completed a program of geological mapping, minor rock sampling, a 36.2 line-kilometre induced polarization survey, a 30.5 line-kilometre ground magnetic survey and a photogeological study on the Foo, Egg, Chilly, Vista and Damn claim groups. In 1974, Rio Tinto Canadian Exploration Ltd. completed nine diamond drill holes, totalling 608.0 metres, on the Vestor property. The following year, a further program of geological mapping and soil sampling was completed on the property. In 1979, Teck Explorations Ltd. completed a program of geological mapping and geochemical (rock and soil) sampling on the Vestor property.

Also, during 1973 through 1975, Aquitaine Company of Canada Ltd. completed programs of prospecting, geological mapping, geochemical (rock, silt and soil) sampling, a photogeological study and a 5.0 line-kilometre induced polarization survey on the area as the KEI claims. This work originally identified the occurrence. In 1976, Aquitaine completed five diamond drill holes, totalling 575.0 metres, on the KEI claims.