A rock sample taken on the northwest side of Mount Madge (about 1.5 kilometres south of Sulphurets Creek) contained 61.7 grams per tonne silver (Assessment Report 17404). Details of the occurrence were not reported.

The area near the junction of Sulphurets Creek and the Unuk River is underlain by a series of north to northwest trending Hazelton Group intermediate (dacite/andesite) composition volcanic flows, pyroclastics and pillow lavas of the Lower Jurassic Salmon River Formation. Locally, they consist of red, green and purple volcanic breccia, conglomerate, sandstone, argillaceous siltstone with intercalated crystal and lithic tuffs. The stratigraphic and structural relationships are not well-defined but the regional strike is to the northeast with an east dip.

See Cumberland (104B 011) for details on the Corey property work history which encompasses the Corey 34 showing.