The IXL occurrence in the Zeballos gold camp is underlain by quartz diorite of the Eocene Catface Intrusions. The principal showing consists of a 040 degree striking 72 degree south dipping, 1 to 10 centimetre wide quartz vein, that follows a 2.5 to 90 centi- metre wide shear zone. Vein minerals consist of pyrite and fine- grained arsenopyrite with minor galena in a quartz gangue. Narrow shear zones spaced at 15 centimetres parallel the vein to a distance of approximately 1 metre. Approximately 22 tonnes of development ore were stockpiled between 1945 and 1949 while driving a 36 metre adit. Sampling returned values ranging from 2 to 2953 grams per tonne gold, nil to 816 grams per tonne silver and to 2.2 per cent lead (Bulletin 27, page 80).