The CM showings area is underlain by diorite and quartz diorite of the Late Triassic-Early Jurassic Guichon Creek batholith which intrudes limestones, mudstones, siltstones and greywackes of the Upper Triassic Nicola Group. The sediments strike north to northeast and dip 25 to 50 degrees west.

Copper mineralization is present in mudstone and siltstone. A 3-metre pit has been sunk in mudstone adjacent to quartz diorite where the mudstone exhibits malachite and azurite stains and contains blebs of pyrite, chalcopyrite and chalcocite. A sample from here analysed 0.51 per cent copper and 2.3 grams per tonne silver. A smaller pit has been sunk in siltstone, 25 metres east of the main pit. The sediments have also been trenched to the north of the main pit and a grab sample from here analysed 0.27 per cent copper (Assessment Report 16428).

Another copper showing is located approximately 1100 metres to the southwest of the main pit. At this showing, two small pits and one trench were made in dark grey to cream-coloured limestones; mineralization in the trench consists of chalcopyrite, covellite and chalcocite. Malachite and azurite stains are common. A sample from the trench in 1984 analysed 0.85 per cent copper, 0.71 per cent zinc and 34.3 grams per tonne silver (Assessment Report 16428).

A trench about 1000 metres directly south of the main pit exposes minor malachite, chalcopyrite and hematite along fractures and shears in a weakly altered diorite. Less than three metres of mineralization is exposed in bedrock adjacent to a 16-metre trench.

Grandora Explorations Ltd. conducted a magnetic survey in 1970. In 1977, geological and geochemical surveys were conducted by Bethlehem Copper Corporation on the Nepa claims which covered part of the CM showings. United Liberty Resources Ltd. conducted a soil geochemical survey in 1984. In 1987, United Liberty Resources Ltd. completed a VLF-EM and magnetic survey and soil and rock geochemistry.