The Silver Streak showing is located 7 kilometres east-northeast of Vernon, on the north side of Vernon Hill.
In this area, east of the Okanagan Valley fault, Upper Triassic to Lower Jurassic Nicola Group sedimentary and volcanic rocks unconformably overlie Devonian to Triassic sedimentary and volcanic rocks of the Harper Ranch Group. These Paleozoic and Mesozoic units are faulted over gneissic rocks of unknown age and metasedimentary rocks of the Proterozoic Silver Creek Formation. Jurassic granitic rocks cut all of the above rocks. Outliers of Eocene Kamloops Group volcanic and sedimentary rocks cap the older units.
A quartz vein in quartz-feldspar biotite gneiss of Mesozoic- Cenozoic(?) age contains chalcopyrite.
In 1968-74, King Graybarr Mines Ltd. carried out trenching, geological mapping, airborne magnetometer and drilling programs. In 1975 Canadian Superior Exploration Ltd. conducted a program of geological mapping and drilling.