The Warner Creek polymetallic vein prospect, 2.5 kilometres south-southwest of Mount Warner, consists of a quartz vein and adjacent alteration zone which cuts andesite of the informally named Upper Cretaceous Powell Creek Formation, 2 kilometres northeast of its contact with Upper Cretaceous granodiorite of the Coast Plutonic Complex. The quartz vein strikes 060 degrees and dips 30 to 45 degrees northwest. It outcrops over a strike length of 50 metres. Mineralization within the vein consists of tetrahedrite (friebergite) blebs and disseminations, along with minor amounts of sphalerite, stibnite, and cinnabar. Malachite staining occurs on the vein surface and along fractures within it. The host rock is highly fractured and altered for 20 to 30 metres on both sides of the vein. Alteration includes silica flooding, quartz-carbonate-sericite veining, and clay alteration of feldspar phenocrysts. Tetrahedrite, along with minor amounts of pyrite and sphalerite, occurs as disseminations, wisps, and semimassive veins and pods within this alteration zone. Samples of vein grade up to 356.7 grams per tonne silver, and up to 0.53 gram per tonne gold.