The Ash 2 showing is located 36 kilometres west-southwest of Vernon, west of Hudson Bay Lake.
In this area, Middle Jurassic porphyritic granite of the informally named Terrace Creek batholith intrudes sediments of the Devonian to Triassic Harper Ranch Group. Much of the surrounding area is underlain by Eocene volcanic, tuffaceous and sedimentary rocks of the Penticton Group and by Miocene Chilcotin Group olivine basalts.
Argillites of the Harper Ranch Group host low grade, molybdenite and pyrite mineralization. The, possibly Jurassic, mineralization is disseminated and fracture-controlled. Molybdenite mineralization also occurs in quartz veins in the adjoining K-feldspar porphyry granite.
In 1980, Brenda Mines Ltd. carried out geological mapping and soil geochemistry.