The SIL showing is located on Mount Wilson, approximately 11.5 kilometres northwest of Peachland.
The showing occurs in a band of rhyolite, rhyolite breccia, tuffs and agglomerate of the Triassic-Jurassic Nicola Group, which forms the south slope of Mount Wilson. The area is underlain by granodiorite of the Early Jurassic Pennask Batholith. North of the showing, the volcanics have been intruded by a monzonite stock and are pervasively altered by chloritic epidote-quartz-carbonate-pyrite fractures. Pyrite, pyrrhotite, chalcopyrite and sphalerite occur as disseminations, fracture fillings, pods, and nearly massive lenses in the volcanic rocks. These sulphides as well as a minor occurrence of molybdenite are also present within quartz-carbonate veins.
An old shaft was reportedly hand dug in 1931-32 by the Brianson brothers. In 1966, the property was held by Boundary Exploration Limited who carried out 3.2 kilometres of road building and 120 metres of trenching. Peachland Copper Mines is also reported to have carried out trenching on the east slopes of Mount Wilson in the early 1970s. No assessment reports were filed on these programs. During 1974-75 Canadian Occidental Petroleum Ltd. carried out a program of geological mapping, rock, stream and soil geochemical surveys, magnetometer surveys, line cutting, road construction, and diamond drilling (1 hole/92.4 metres). They found that the intrusives were barren of sulphide mineralization, while hornfelsed volcanics contain numerous and widespread occurrences of pyrite and pyrrhotite. No records were filed on the diamond-drill program. In 1977, the Sil claims lapsed, but were re-staked in 1978 as the Rhyolite claims. In 1979, Brican Resources Ltd. established a 10-kilometre grid over the volcanics. In 1980, Esso Resources Canada Ltd. carried out a ground magnetometer survey over that grid. They found that there was more magnetic variation over the intrusives than over the volcanics. They also carried out an airborne electromagnetic survey; however, only weak anomalies were found and they were related to overburden response. In 1982, Brican extended the grid to the northwest and carried out a 7.0-kilometre magnetometer survey. The survey identified several sharp magnetic anomalies.
