The Key South occurrence is located at an elevation of approximately 1480 metres on a north- to northwest-facing slope, south of a small lake (referred to as Green Lake or Good News Lake) and approximately 2.5 kilometres south-southeast of Tsacha Mountain.

The area is underlain by volcaniclastic rocks of the Middle Jurassic Naglico Formation and felsic volcanic rocks of the Lower to Middle Entiako Formation, both of the Hazelton Group, and felsic volcanic rocks of the Eocene to Oligocene Ootsa Lake Formation (Nechako Plateau Group). Small bodies of Eocene feldspar porphyritic rocks intrude the volcanics.

Locally, potassium feldspar, chlorite, epidote and garnet alteration with variable amounts of specular hematite, magnetite, pyrite and chalcopyrite occur over an area of approximately 200 by 300 metres. Breccia and veins of skarnified-looking material contain massive to semi-massive pyrite and magnetite.

In 1992, a grab sample (509420) of laminated volcanics hosting massive magnetite yielded 0.13 gram per tonne gold and 3.2 grams per tonne silver (Assessment Report 22539).

In 2010, a float sample (I006414) of intermediate volcaniclastic rock with pyrite assayed 0.22 gram per tonne gold, 14.3 grams per tonne silver, 0.137 per cent copper and 0.026 per cent tungsten (Assessment report 31702).

Work History

The area has been explored in conjunction with the nearby Key (MINFILE 093F 069) and Buzz (MINFILE 093F 076) occurrence and a complete exploration history can be found there.