The Mystery showing is located 20 kilometres northeast of Vernon, near the headwaters of Putnam Creek.
In this area, Upper Triassic to Lower Jurassic Nicola Group sedimentary and volcanic rocks are faulted over metasedimentary rocks of the Proterozoic Silver Creek Formation. A porphyry dike of Mesozoic-Cenozoic age cuts the Nicola Group.
The light grey porphyry dike carries silver, lead and gold mineralization. The dike is impregnated with galena and pyrite. The mineralized dike extends north to the Prince of Wales showing (082LSW060).
By 1902 exploration included the sinking of a 20 metre shaft.