At the Humbird-Discovery showing, west of Samuel Glacier, dis- seminated galena, freibergite, sphalerite, and chalcopyrite replace complexly folded and faulted Ordovician to Devonian limestone in a southeast-trending breccia zone. The host rocks, consisting of lime- stones, sandstone, slate, shale, and sericite schists are locally intruded by diorite, and are strongly silicified. The mineralized zone is about 24 metres wide and 30 metres long. A grab sample of mineralized material ran 149.5 grams per tonne silver, 6.39 per cent lead and 2.59 per cent zinc. Malachite and azurite were reported in float material.