The property lies within the Lower Jurassic Guichon Creek batholith and straddles an intrusive contact where younger Bethlehem phase quartz diorite and granodiorite form an irregular embayment in older Guichon variety granodiorite. These rocks are cut by north trending igneous breccias and dacite porphyry dykes. North trending faults and closely spaced fracturing partly control mineralization. The Creek fault trends north-northeast immediately west of the White zone and east of the Iona deposit (092ISE006).

The original showing, the Brynelson, is a 3.65 metre wide zone striking 035 degrees, dipping 85 degrees southeast and consisting of narrow parallel stringers of bornite in Bethlehem phase quartz diorite. There are two sets of joints; one closely spaced, striking 020 degrees and dipping steeply to the east, and the other, less well developed, striking 080 degrees and dipping steeply south. The zone of strong jointing strikes slightly east of north and is 12 metres wide. Rocks adjacent to joints are propylitized. Chalcopyrite and malachite occur in similar zones 100 metres to the southeast and northeast.