The Northern Belle occurrence is located west of the north fork of Glacier Creek, 9 kilometres northeast of Stewart.
The showing consists of a 1.5 to 1.8 metre wide gossanous quartz breccia vein hosted in argillite (slate) of the Middle Jurassic Salmon River Formation (Hazelton Group). The vein, traced for 15 metres, strikes west and dips 40 degrees south. Mineralization consists of pyrite and massive lenses, up to 5 centimetres in diameter, of chalcopyrite.