The Klanawa and Canyon occurrence area is near major lineaments separating Lower Jurassic Bonanza Group volcanics from Early to Middle Jurassic quartz diorite of the Island Plutonic Suite. In 1931, some "good chalcopyrite ore" was brought in from the showing and was reported to occur across a width of 9 metres. The mineralization is inferred to be hosted in a shear zone in Bonanza Group volcanics.