The Tuk showing is located 2 kilometres southwest of Falkland, at the base of Tuktakamin Mountain.
In this area, Upper Triassic to Lower Jurassic Nicola sedimentary and volcanic rocks unconformably overlie Devonian to Triassic sedimentary and volcanic rocks of the Harper Ranch Group. These units are intruded by Middle Jurassic granitic rocks. Extensive Eocene Kamloops Group volcanic and sedimentary rocks overlie the older units.
Nicola Group volcanic rocks host copper mineralization. Minor disseminated chalcopyrite occurs in augite porphyry andesite.
In 1982, Noranda carried out geological mapping, soil geochemistry and magnetic and electromagnetic surveys.