The Foss showing is located approximately 9 kilometres west of Port Alberni and 4 kilometres south of Sprout Lake.

Regionally, the area is underlain by Lower Jurassic Bonanza Group volcanics, limestone of the Upper Triassic Quatsino Formation and basalts of the Karmutsen Formation (Vancouver Group) and the intrusive Island Plutonic Suite.

Mineralization occurs as skarn type deposits with pyrite, chalcopyrite, pyrrhotite, magnetite and bornite at the contact between the Karmutsen volcanics and Quatsino limestone.

In 1985, Robert W. Shaw staked the claim group.

In 1986, Triactor Resources Corp. completed geological mapping and prospecting.

A similar prospecting, geological mapping and rock sampling program was conducted on areas of the Macktush property for World Organics Inc. in 2015.

In 1987, Ashworth Explorations Ltd. completed an exploration program on behalf of Veto Resources Ltd. consisting of geological mapping, prospecting, soil sampling and magnetic geophysical surveying. Highlights include sample R27, which assayed 8.64 per cent copper and 11.1 grams per tonne silver (Assessment Report 17441).

In 1990, Simplon Resources Inc. completed geological mapping and geochemical rock sampling. Highlights include rock sample VWF90-R4, which assayed 3.61 per cent copper, and VWF90-R6, which assayed 4.45 per cent copper (Assessment Report 20303).

In 2009 through 2011, G4G Resources completed programs of geological mapping and rock and soil sampling on the area as the Macktush Copper property. During 2012 through 2014, Nahminto Resources Ltd. completed exploration programs including limited prospecting, rock sampling, geological mapping and a satellite remote sensing survey and analysis on the Macktush group. A similar prospecting, geological mapping and rock sampling program was conducted on areas of the Macktush property for World Organics Inc. in 2015.