The Copper King showing is located 21 kilometres southeast of Vernon, below the flood level of Swalwell Lake.
In this area, metamorphic rocks of the Shuswap Terrane are intruded by Middle Jurassic granitic rocks. Volcanic and sedimentary rocks of both Eocene and Miocene ages cap the older rocks.
Feldspar amphibolite gneiss hosts copper mineralization. Pyrite, traces of copper mineralization and specks of native copper occur in foliated seams and in fractures.
The first record of this occurrence is in 1929. In 1967, Kokanee Moly Mines Ltd. conducted soil geochemistry. In 1973-75, Westley Mines Ltd. carried out magnetic, electromagnetic and induced polarization surveys. In 1975, Granges Exploration conducted a program of soil geochemistry and drilling. In 1977, Union Carbide completed a program of exploration on the D.M., Leal and Sue claims. Westley Mines Ltd. completed an electromagnetic survey in 1981.