The Jewel 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 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.

Harper Ranch Group siltstones and quartz diorite dikes host alkaline porphyry-type copper, gold and silver mineralization. The 1 to 3-metre thick dikes are brecciated in places. The dikes and sediments have been chloritized, weakly clay altered and locally silicified. Gypsum veining and pyrite is also present. Within portions of this alteration zone copper occurs as supergene native copper, malachite, azurite, and as chalcopyrite, in disseminations and on fractures, with or without quartz. A 30-metre section of drill core assayed 0.16 per cent copper with erratic gold values up to 1 gram per tonne (Assessment Report 20203). A series of hematitic structures cuts the supergene zone and host enrichments in copper, gold and silver. Below the supergene zone, hypogene fracture-controlled chalcopyrite mineralization assayed up to 0.5 per cent copper over 7.5 metres.

From 1957 to 1971, the Marzoffs explored the area with trenches and in 1974 carried out some drilling. In 1967, Canex Aerial Exploration Ltd. carried out geological mapping, soil geochemistry, magnetic, VLF-EM and induced polarization surveys, and drilling. Utah Mines Ltd. conducted geological mapping in 1986. In 1988-90, Corona Corporation carried out geological mapping, soil geochemistry, trenching, VLF-EM and magnetic surveys, and drilling.