The Silver Bell-Stewart occurrence is located on the west slope of Mount Rainey, 4 kilometres southeast of Stewart.
The showing consists of a series of shear zones, up to 1.2 metres wide, in greenstone of the Lower Jurassic Unuk River Formation (Hazelton Group). The shear zones contain stringers and lenses of galena, sphalerite and pyrite. A grab sample assayed 141 grams per tonne silver (Minister of Mines Annual Report 1925, page 80).