The Access occurrence is located near the head of Refuge Cove, on the western shore of Sidney Inlet.

The area is underlain by a multi-phased, 2 by 17 kilometre Eocene Catface Intrusion that consists of a leucocratic quartz- diorite phase and a biotite-hornblende diorite phase. The latter phase contains kaolinite-altered plagioclase, and less than 10 per cent quartz.

Locally, a mineralized breccia zone is hosted by a multi-phased intrusion consisting of a medium-grained biotite- hornblende diorite with less than 10 per cent quartz and kaolinite- altered plagioclase, and a more leucocratic quartz-diorite of the Eocene Catface Intrusions. Disseminated chalcopyrite, bornite, malachite and azurite mineralization occurs near joints trending 330 degrees and dipping 70 degrees east. Secondary biotite and hornblende are concentrated along the joints. The mineralization occurs near the fractures and decreases rapidly away from them.

In 1970, Cerro Mining Co. of Canada Ltd. completed a program of soil and silt sampling. In 1973, Western Mines completed a induced polarization survey on the area. No samples were taken at the time but “good grade” chalcopyrite mineralization was reported (Assessment Report 4402).