The Shack occurrence is located on a hill overlooking the Kennedy River to the east, approximately 4.5 kilometres north of the river mouth on Kennedy Lake, and 27 kilometres northeast of Ucluelet, B.C.

Karmutsen Formation volcanics and Quatsino Formation limestones of the Upper Triassic Vancouver Group are intruded by the Early to Middle Jurassic Island Intrusions consisting of granodiorite to quartz diorite. The Karmutsen rocks consist of andesitic to basaltic flows, tuffs and volcaniclastics. West-northwest trending fault/shear zones of Tertiary age cut the rocks.

The Shack vein is emplaced along a northeast trending fault which is probably a splay of the Mine Fault. The vein, hosted by andesite, averages 40 centimetres in width and extends for 160 metres along strike (053 degrees), dipping 60 to 67 degrees to the northwest. As indicated by drilling the vein contains 2 to 3 per cent pyrite, pyrrhotite, chalcopyrite and sphalerite. The wall- rocks are silicified, kaolinized and pyritized. In 1988, fourteen drill holes tested the vein and gave a weighted average of 11.4 grams per tonne gold and 77.5 grams per tonne silver across an estimated true width of 48 centimetres (Assessment Report 18693).

A preliminary ore reserve estimate for the Shack vein has been calculated based on surface sampling and diamond drilling. The deposit contains from 37,920 to 42,015 metric tonnes of probable or possible ore grading from 19.20 to 24.03 grams per tonne gold (Assessment Report 18693). The vein has been tested to a depth of 122 metres where it remains open. It also remains open along strike at both ends.

The Iron Side claim was originally staked in the period around 1899 to 1902 and owned by T.O. MacKay. In 1938, the claims were sold to Kennedy Lake Gold Mines. In 1988, Golden Spinnaker Minerals completed a program of geological mapping, ground magnetic surveys, geochemical sampling and seventeen diamond drill holes, totalling 908 metres. In 2009 and 2010, G4G Resources Limited completed a program of prospecting and remote sensing, consisting of spectral analysis and synthetic aperture radar analyses, on the area as the G4G property.

In 2014, a rock sampling program on the Kennedy Lake property focused on the Tommy K underground workings, approximately 1.7 kilometres east of Shack, under the direction of owners J. Bakus and D. Patterson. Four float samples were also obtained from the Shack prospect area. Assays of these samples are pending.