The Jewel East showing is located 8 kilometres southwest of Falkland, on the south slope of the Salmon River Valley.

In this area, Upper Triassic to Lower Jurassic Nicola Group sedimentary and volcanic rocks unconformably overlie sedimentary and volcanic rocks of the Devonian to Triassic Harper Ranch Group. These units are intruded by Middle Jurassic granitic rocks. Extensive Eocene Kamloops Group volcanic and sedimentary rocks overlie the older units.

Quartz diorite dikes and quartz veins, cut Harper Ranch Group siltstones. The siltstones host copper, gold, silver and zinc mineralization. The mineralization is associated with two quartz diorite dikes, dipping 70 degrees to the northeast. Siltstones on the hangingwall of the upper dike host gold mineralization (0.8 gram per tonne over 1.3 metres). On the hangingwall of the lower dike, silicified and chloritic siltstones host copper mineralization. Disseminated and fracture-controlled chalcopyrite, arsenopyrite, malachite and azurite occur with or without quartz. An 18-metre drill section assayed 0.19 per cent copper (Assessment Report 20203). There are also 0.3 to 1-metre zones of semi-massive sulphides both within the dike and the siltstone that carry copper, zinc, gold and silver mineralization. These zones may be structurally controlled. Chalcopyrite, sphalerite and pyrite assayed up to 7.6 per cent copper, 2.0 per cent zinc, 1.7 grams per tonne gold and 125 grams per tonne silver (Assessment Report 20203).

In 1988-90, Corona Corporation carried out geological mapping, soil geochemistry, trenching, VLF-EM and magnetic surveys and drilling.