The GT-4 occurrence is located at an elevation of approximately 425 metres on a generally east-facing slope, south-southeast of Bonanza Lake and approximately 1.8 kilometres northeast of White Fang Lake.

Regionally, the area is underlain by basaltic volcanic rocks of the Upper Triassic Karmutsen Formation (Vancouver Group), which have been intruded by granodioritic rocks of the Lower to Middle Jurassic Island Plutonic Suite to the southwest and northwest.

Locally, weakly epidote-altered volcanics host minor fine-grained to blebby pyrite and chalcopyrite associated with a 5.0-metre-wide intensely sericite-epidote-clay–altered shear zone.

In 2013, a chip sample (GT-4) yielded 0.215 per cent copper over 4.0 metres, whereas a previous sample (0907) is reported to have assayed 0.767 per cent copper over an unknown length (Assessment Report 34322).

Work History

The area has been explored in conjunction with the nearby Bonanza Pit (MINFILE 092L 164) occurrence and a complete regional exploration history can be found there.