The Ilk showing is 400 metres west of the Similkameen River and 18.5 kilometres south of Princeton. The Friday Creek prospect (092HSE033) is 800 metres north-northwest of this showing.

The area is underlain by the eastern facies of the Upper Triassic Nicola Group consisting of mafic augite and hornblende porphyritic pyroclastics and flows. These rocks are intruded by diorite and monzonite, locally pyroxenite and gabbro, of the Early Jurassic Copper Mountain and Lost Horse intrusions. The occurrence lies about 600 metres northeast of the Boundary fault. This steeply- dipping normal fault downdrops overlying Eocene volcanics and sediments of the Princeton Group to the west against Nicola Group rocks and the Copper Mountain stock (Copper Mountain Intrusions).

The showing consists of several steeply-dipping faults, striking northeast to northwest, in diorite of the Copper Mountain stock. Veins of pink pegmatite/syenite are also present and tend to be associated with the faults. Mineralization is contained in a 60 by 180 metre area trending north-northwest, roughly paralleling the contact with Nicola Group volcanics, 60 to 90 metres to the west.

The faults contain malachite and pyrite and the pegmatite veins are mineralized with bornite. A chip sample, 6.1 metres long, taken across an irregular zone of pegmatite veins with bornite, assayed 2.16 per cent copper (Property File - D.F. Hamelin, 1960). A second chip sample, 3 meters long, taken along a fault containing malachite and pyrite, assayed 0.35 per cent copper (D.F. Hamelin, 1960). A grab sample of bornite-rich material taken from a narrow vein assayed 28.06 per cent copper, 18.5 grams per tonne gold, 213 grams per tonne silver, trace palladium and nil platinum (Minister of Mines Annual Report 1960, page 57). A second grab sample from a carbonate-rich zone in diorite assayed 64.5 grams per tonne palladium (D.F. Hamelin, 1960).

This occurrence was trenched and soil sampled by Phelps Dodge Corporation in 1958. Friday Creek Development Company Ltd. sampled the showing in 1960 and Hanna Mining Company conducted geological mapping and an induced polarization survey in 1965. During 2007 through 2009, Canadian international Minerals Inc. examined the area as the Copper Mountain property. Exploration work included programs of limited prospecting and sampling and an airborne magnetometer and electromagnetic survey.