The showing is located in the northeastern part of the Tweedsmuir Glacier four kilometres south of the Yukon border on an isolated, steep-sided nunatak. The area is underlain dominantly by weakly metamorphosed sedimentary and volcanic rocks, intruded by gabbro-diorite pluton characterized by strong compositional layering. Gabbro consists of medium to very coarse grained hornblende with lesser white plagioclase. The Gabbro locally contains gossaneous zones which host quartz-carbonate veins.
A one metre wide, west-trending vein was found to contain up to 30 per cent coarse galena as small veinlets and lenses as well as disseminated pyrite.
A single grab sample yielded up to 10.5 per cent lead, 540 grams per tonne of silver, and 2.07 grams per tonne gold (Fieldwork 1992, pages 185-229).