The Koala occurrence is located on a ridge crest about 9 kilometres northwest of Tenakihi Lakes and approximately 74 kilometres northwest of the community of Germansen Landing.

At the showing, fine and coarse-grained monzonite of the Early Jurassic Hogem Plutonic Suite is cut by numerous small ankerite veins in a zone 5 to 6 metres in width (and up to 75 metres long). From 1 to 2 per cent chalcopyrite, malachite and azurite are disseminated throughout and coat fracture surfaces. Local mafic segregations in the monzonite are more strongly mineralized than the felsic sections.

In 1991, a grab sample assayed 0.016 per cent copper (Open File 1992-11, Map sheet 2, Map Number 35). The zone may extend 430 metres southeast to the Yak occurrence (094C 113).

Work History

Major General Resources (later renamed Commander Resources Ltd.) staked the Mate claims over the area in the early 1990s. In 1991, claims operator Swannell Minerals Corp. conducted a program of reconnaissance mapping and rock and silt sampling. Four rock samples from a zone on the Mate 1 claims assayed greater than 0.2 per cent copper. Swannell’s 1991 work encompassed several MINFILE showings on the Mate claims including the Koala occurrence. In 1992, follow-up work by Swannell included geological mapping, and soil and rock sampling. Soil sampling was performed over the previously identified copper anomaly.

In 2012, Commander Resources Ltd. completed in-fill sampling of previous geochemistry work on their Mate property which covers the Koala showing. A total of 10 soil samples, 5 rock samples and 3 stream silt samples were taken and analyzed.

In 2020, Interra Copper Corp. completed a program of geological mapping, geochemical (rock, soil and stream sediment) sampling and a 14.0 line-kilometre induced polarization survey on the area as the Thane property.

See Matetlo (094C 018), located 700 metres south of the Koala showing, for further details of a common work history.