The Sharon property is near the Towser [082KNW028] at the north end of Silver Cup Ridge. The Sharon and Old Reliable claims were most likely on Sharon Creek, where Fyles and Eastwood located an adit in 1962. Sharon Creek flows to the northeast into Lardeau Creek.
The Trout Lake area is underlain by a thick succession of sedimentary and volcanic rocks of the Badshot Formation and Lardeau Group near the northern end of the Kootenay arc, an arcuate, north to northwest trending belt of Paleozoic and Mesozoic strata that is now classified as a distinct, pericratonic, terrane. The arc rocks are bordered by Precambrian quartzite in the east and they young to the west, where they are bounded by Jurassic-age intrusive complexes. They were deformed during the Antler orogeny in Devonian-Mississippian time and were refolded and faulted during the Columbian orogeny, in the Middle Jurassic. A large panel, the "Selkirk allochthon", was later offset to the northeast by dip-slip motion along the Columbia River Fault.
The Badshot Formation is composed of a thick Cambrian limestone that is a distinctive marker horizon in the Trout Lake area. It is underlain by Hamill Group quartzite and it is overlain by a younger assemblage of limestone, calcareous, graphitic and siliceous argillite and siltstone, sandstone, quartzite and conglomerate, and also mafic volcanic flows, tuffs and breccias, all of which belong to the Lardeau Group. The rocks are isoclinally folded and intensely deformed, but only weakly metamorphosed. They occur as intercalated beds of marble, quartzite and grey, green and black phyllite and schist. Fyles and Eastwood (EMPR BULL 45) subdivided the group into six formations (Index, Triune, Ajax, Sharon Creek, Jowett and Broadview) of which the lowermost (Index) and uppermost (Broadview) are the most widespread. The Triune (siliceous argillite), Ajax (quartzite) and Sharon Creek (siliceous argillite) are restricted to the Trout Lake area. The Jowett is a mafic volcanic unit.
The Sharon Creek provides a cross section through the Lardeau Group. Upstream from its junction with Lardeau Creek, it cuts successively through black siliceous argillite of the Triune Formation, massive grey quartzite of the Ajax Formation, black siliceous argillite and phyllite of the Sharon Creek Formation and green phyllites of the Broadview Formation. The rocks are isoclinally folded and deformed. They have the northwest trending strike and moderately steep northeasterly dip found throughout Silver Cup Ridge area, and they are cut by axial-plane parallel shears.
The Sharon vein is a well defined structure, about 0.91 metre wide on surface, that was found to contain "concentrating ore" in the late 1890s. At that time, it was stripped in a few places. In 1900, a local syndicate drove a tunnel that followed the vein for 38.1 metres. There were several stringers of high-grade mineralization in the face of the drift but it was not considered to be of economic significance.
