The Chief Thomas occurrence is located on the south side of a peak located east of Etschitka Creek, approximately 80 kilometres northwest of the community of Germansen Landing.

The showing consists of a single quartz vein in slightly gneissic quartz diorite of the Early Jurassic Hogem Plutonic Suite (Geological Survey of Canada Memoir 274, page 223). The vein is 2 to 3 metres wide, and at least 100 metres long. It strikes 140 degrees, dipping vertically (Assessment Report 17743). Sulphide minerals (bornite, chalcopyrite and pyrite) are disseminated throughout the vein, particularly on the west side. In one area, 30 centimetres of vein and 45 centimetres of wallrock on the west side of the vein are highly decomposed and heavily impregnated with malachite. The vein is vuggy and contains much dark red specular hematite, with limonite boxworks well developed in places. In 1954, one sample assayed 0.5 gram per tonne gold, 9.3 grams per tonne silver and about 1 per cent copper (Geological Survey of Canada Memoir 274, page 233).

In 1946, the Chief Thomas showing and the Elizabeth group of claims were staked.

In 1987, Skylark Resources Ltd. carried out prospecting on their Matel claim which covers the Chief Thomas showing; two rock samples were collected and assayed but yielded low values in gold (21 parts per billion) and silver (0.1 parts per million) (Assessment Report 17743).

In 2009-10, C.O. Naas examined the provincial Regional Geochemical Survey data and British Columbia MINFILE which led to the staking of the Thane Creek property tenures. A comprehensive compilation of historical exploration work was undertaken and identified four areas that indicated excellent potential for copper-gold mineralization. In 2010, a property visit was carried out and explored three of the target areas identified by the compilation program. Exploration consisted of geochemical sampling with collection of 10 silt samples and 69 rock samples.