The Shear occurrence is located near the northwest bank of Bald Range Creek, approximately 6 kilometres west of Wilson Landing.
The area is underlain by a large pendant of metasedimentary rocks of the Devonian to Triassic Harper Ranch Group which are intruded by hornblende diorite and quartz diorite of the Middle Jurassic Okanagan Batholith and are overlain by undivided volcanic rocks of the Eocene Penticton Group and basaltic volcanic rocks of the Pleistocene to Holocene Lambly Creek Formation.
Locally, an andesite hosts a quartz stockwork zone containing pyrite and minor amounts of galena. The zone strikes 023 degrees and dips 46 degrees north. A second zone of quartz veining is reported in a gully approximately 600 metres northwest of the first zone.
Work History
In 1978, Mountain Minerals Co. Ltd. completed a program of geological mapping, geochemical (water and soil) sampling and a 30.0 line-kilometre scintillometer survey on the area as the Active claims. This work was centered on potential uranium exploration in the area.
In 1985, N.C. Lenard completed a program of prospecting and geochemical (rock and soil) sampling on the area as the Shear 1-7 claims. A grab sample of the rusty weathering quartz stockwork from the east edge of the zone assayed 18.5 grams silver per tonne (Assessment Report 14784). A further program of geological mapping was completed in 1987.