At the G.H. 2 showing, three areas of copper mineralization occur on the west bank of Steven Creek, 1.15 to 1.6 kilometres north of the Similkameen River and 16 kilometres east of Princeton. The mineralization is hosted in leucocratic quartz diorite of the Early Jurassic Bromley batholith. The quartz diorite is fractured and faulted, and exhibits epidote and silica alteration. A few felsic and mafic dykes intrude the quartz diorite. Minor hematite occurs along fractures and faults.