The Gex shale/slate quarry is located along the north side of Kishenena Creek, approximately 4.7 kilometres north of the U.S./Canada border.

The claims are located in the Proterozoic Appekuny formation consisting of argillaceous shales, quartzites, siltstones, and minor beds of argillaceous limestones and conglomerates.

Locally, three strata of interest occur:

A. Blue-gray, extremely hard and tough slate that breaks conchoidally across the bedding planes and only occasionally along the six to twelve centimetre spacing of the bedding planes. The unit is, at least, 15 metres thick and is exposed over 260 metres.

B. Gray to black, well indurated, strongly fissile slate showing bedding at four to eight centimetres. It can be split as finely as one to two millimetres, but normally splits at eight centimetres. The unit is 3 to 4 metres thick and exposed over 260 metres.

C. Blue-gray, well indurated fissile slate, normally bedded from one to four centimetres, with locally much harder lenses. It contains pyrite, sericite and biotite micas, and occasionally small garnets. The unit is 1 to 2 metres thick and useable over 30 metres.

The deposit was initially found by Charlie Wise in the early 1930’s and shown to Frank Goble when he was a strapping partner of Wise and Levi Ashman (from 1934 to 1954). Samples were taken from the deposit at the edge of the then beaver dam on a meander of Kishenena Creek, but it was never staked. A few truckloads of the slate were taken out in the late 1960’s to be used in fireplaces in the Mountain View, Alberta area.

The Gex 1 was staked in August of 2001, Gex 2 in September of 2001 and Gex 3 in May of 2002 by E.O. Goble. Fieldwork commenced in August of 2001 with a cursory prospecting program to relocate the showing after three decades of inaction. In 2002, a program of clearing the old caterpillar trail from the capped Shell gas well at kilometre 102 of the Kishenena forestry road was undertaken, and once easy access was obtained to the slate beds, a short prospecting and geological mapping program was carried out.

In 2001, electron microprobe examination of samples of the black slate showed high concentrations of titanium. A single assay returned values of 0.63 grams per tonne gold and 3.13 grams per tonne silver (Assessment Report 26925).