The HC Silver occurrences are located near the western edge of the HC claim group, about 6.5 kilometres south of the south shore of Taweel Lake, west of Clearwater. Near the midpoint of the western claim boundary, several calcite-quartz veins, up to 80 centimetres thick, cut siltstone. The veins are exposed in old hand-dug shafts and trenches in a 500 metre long southeast trending zone, and contain sphalerite, chalcopyrite, galena, pyrite and tetrahedrite. A representative sample was cut across 0.70 metre by Mark Rebagliati in 1987; it assayed 24.34 grams per tonne silver, 3.31 per cent zinc and 0.75 gram per tonne gold. The silver-zinc veins are underlain by siltstone, argillite and greywacke, which are associated with augite porphyry flows and pyroclastics of the Upper Triassic Nicola Group.
Evidence of exploration of the silver mineralization on the west side of the HC claim consists of old shafts and pits. The first documented work on the ground was geological, geophysical and soil surveys done over the west side of the claim by Imperial Oil Limited in 1972. In 1982, a regional reconnaissance program was conducted by BP Selco. BP Selco relocated the silver-lead-zinc mineralization, and also discovered an area of gold-enriched alteration near the centre of the claim (HC Gold, 092P 188). In 1985, three alteration zones were trenched by backhoe. Lancer Resources optioned the HC claim from BP, and conducted a detailed soil geochemical survey. The B.C. Geological Survey conducted a regional till geochemistry program over NTS mapsheets 092P09W and 08W in 1999 (Open File 2000-17).